Patent Publication Number: US-2023148633-A1

Title: Sterilization module and opening/closing module

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a National Stage Application of PCT/KR2021/002566, filed 2 Mar. 2021, which claims priority to Serial No. 10-2020-0026231, filed on 2 Mar. 2020, in the Republic of Korea and which applications are incorporated herein by reference. To the extent appropriate, a claim of priority is made to the above disclosed applications. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to a sterilization module that treats a product loaded in a carriage, and an opening/closing module that may open and close the sterilization module. 
     BACKGROUND ART 
     Retort foods refer to foods that are formed by applying heat of a high temperature to sealed food products, sterilizing them, and rapidly cooling them. A retort sterilizer is an apparatus that performs an operation of applying heat of a high temperature to sealed products during a process of manufacturing retort foods. 
     Various methods have been applied to increase product production efficiency by treating a plurality of products for a short time by sterilizing the products well. 
     A batch scheme of carrying out all treatment processes including sterilization at once after loading products in carriage and introducing the products into a sterilizer may be used. In this case, because heat efficiency is low, an additional heat treatment time is necessary, and a deviation occurs in distribution of heat so that heating cannot be uniformly. 
     A continuous scheme of treating products one by one in a separate space while feeding the products continuously may be used. In this case, an entire length of the apparatus may become excessively large and the treatment time may be adjusted only with movement speed, and it is difficult to maintain and repair the apparatus due to a complex structure thereof. 
     Furthermore, a space that is necessary for driving a door for opening the treatment apparatuses to introduce the products into the treatment apparatuses and seal the apparatuses is very large. 
     DISCLOSURE 
     Technical Problem 
     The present disclosure has been made in an effort to solve the above problems, and provides an opening/closing module and a sterilization module that decreases an occupied space thereof while treating products loaded in carriages of a batch scheme and a continuous scheme. 
     Technical Solution 
     An opening/closing module according to an embodiment of the present disclosure is disposed at an entrance of a sterilization module that provides a sterilization space, in which a carriage is accommodated, to separate the sterilization module from an outside, and includes a curved intermediate door part including a sliding part to selectively open and close the entrance of the sterilization module. 
     A sterilization module according to another embodiment of the present disclosure includes a housing, an intermediate door part including an intermediate door slid to open and close an interior of the housing to and from an outside, and a door guide that guides sliding of the intermediate door, a rotation part that rotates a carriage that enters the interior of the housing, and a sterilization/movement part that moves the carriage. 
     Advantageous Effects 
     Accordingly, the loaded products may be uniformly heated rapidly while using the carriage scheme. 
     An entire size of the apparatus may be reduced by reducing a height of the module in a vertical direction. 
     An opening/closing structure that may effectively endure pressure may be provided. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG.  1    is a view obtained by cutting a side surface of a housing of a sterilizer in a longitudinal direction according to an embodiment of the present disclosure. 
         FIG.  2    is a view obtained by cutting an upper surface of a housing of a sterilizer in a transverse direction according to an embodiment of the present disclosure. 
         FIG.  3    is a conceptual view illustrating a portion of a housing, which is opened, such that an internal structure of a sterilizer according to an embodiment of the present disclosure is exposed. 
         FIG.  4    is a front view in a state, in which an inlet door of a sterilizer is positioned at an inlet opening location, according to an embodiment of the present disclosure. 
         FIG.  5    is a cross-sectional view obtained by cutting a sterilization module by a plane that is perpendicular to an entrance direction, in a situation, in which a carriage reaches a rotation part of a sterilizer, according to an embodiment of the present disclosure. 
         FIG.  6    is a view illustrating a rotation part of a sterilizer along a rotational direction thereof according to an embodiment of the present disclosure. 
         FIG.  7    is a perspective view conceptually illustrating a structure of a rotation part of a sterilizer according to an embodiment of the present disclosure. 
         FIG.  8    is a view illustrating an operation of applying a pressure such that a gripper pusher of a sterilizer grips a carriage according to an embodiment of the present disclosure. 
         FIG.  9    is a view illustrating a situation, in which a carriage is rotated by rotating a rotation part frame of a sterilizer according to an embodiment of the present disclosure. 
         FIG.  10    is a cross-sectional view obtained by cutting a transfer unit of a sterilizer by a plane that is perpendicular to an entrance direction according to an embodiment of the present disclosure. 
         FIG.  11    is an enlarged view conceptually illustrating a form, in which a transfer unit of a sterilizer is connected to a rotation part frame, according to an embodiment of the present disclosure. 
         FIG.  12    is a view illustrating a seating transfer member of a sterilizer according to an embodiment of the present disclosure. 
         FIG.  13    is a cross-sectional view obtained by cutting a seating transfer member of a sterilizer by a plane that is perpendicular to a rotational direction according to an embodiment of the present disclosure. 
         FIG.  14    is a cross-sectional view obtained by cutting a transfer member holder of a sterilizer by a plane that is perpendicular to an entrance direction according to an embodiment of the present disclosure. 
         FIG.  15    is a cross-sectional view obtained by cutting a transfer member holder of a sterilizer by a plane that is perpendicular to a rotational direction according to an embodiment of the present disclosure. 
         FIG.  16    is a cross-sectional view obtained by cutting an intermediate door part of a sterilizer by a plane that is perpendicular to a rotational direction in a state, in which an intermediate door is disposed at an opening location, according to an embodiment of the present disclosure. 
         FIG.  17    is a cross-sectional view obtained by cutting an intermediate opening/closing part of a sterilizer by a plane that is perpendicular to an entrance direction according to an embodiment of the present disclosure. 
         FIG.  18    is a cross-sectional view obtained by cutting an intermediate opening/closing part of a sterilizer by a plane that is perpendicular to a vertical direction according to an embodiment of the present disclosure. 
         FIG.  19    is a view conceptually illustrating an intermediate door part of a sterilizer in a state, in which an intermediate door is disposed at a closing location, according to an embodiment of the present disclosure. 
         FIG.  20    is a cross-sectional view obtained by cutting an intermediate opening/closing part of a sterilizer by a plane that is perpendicular to a rotational direction in a state, in which an intermediate door is disposed at a closing location, according to an embodiment of the present disclosure. 
         FIG.  21    is a perspective view of a sterilization housing according to another embodiment of the present disclosure. 
     
    
    
     MODE FOR INVENTION 
     This application claims the benefit of priority to Korean Patent Application No. 10-2020-0026231, filed in the Korean Intellectual Property Office on Mar. 2, 2020, the entire contents of which are incorporated herein by reference. 
     Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the exemplary drawings. Throughout the specification, it is noted that the same or like reference numerals denote the same or like components even though they are provided in different drawings. Further, in the following description of the present disclosure, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure rather unclear. 
     In addition, terms, such as first, second, A, B, (a), (b) or the like may be used herein when describing components of the present disclosure. The terms are provided only to distinguish the components from other components, and the essences, sequences, orders, and the like of the components are not limited by the terms. When it is described that one element is connected, coupled, or electrically connected to another element, the element may be directly connected or coupled to the other element, but a third element may be connected, coupled, or electrically connected between the elements. 
       FIG.  1    is a view obtained by cutting a side surface of a housing  12  of a sterilizer  1  in a longitudinal direction according to an embodiment of the present disclosure.  FIG.  2    is a view obtained by cutting an upper surface of the housing  12  of the sterilizer  1  in a transverse direction according to an embodiment of the present disclosure.  FIG.  3    is a conceptual view illustrating a portion of the housing, which is opened, such that an internal structure of the sterilizer according to an embodiment of the present disclosure is exposed. 
     Referring to the drawings, the sterilizer  1  according to an embodiment of the present disclosure may include a temperature raising module  20 , a sterilization module  30 , and a cooling module  40 , and may further include an opening/closing module  50 . 
     In the specification of the present disclosure, an entrance direction D1 refers to a direction, in which a carriage “C” enters the sterilizer  1 , and is a rightward direction of the corresponding drawing and a positive direction in the illustrated x axis, as in arrows illustrating in  FIGS.  1  and  2   . The positive direction in the illustrated x axis may be a forward direction and a downstream direction along an entrance direction D1, and the negative direction may be a rearward direction and an upstream direction along the entrance direction D1. 
     In the specification of the present disclosure, the rotational direction is a direction corresponding to an axial direction of rotations of a movement part  13 , a sterilization movement part  33 , a transfer unit  70 , a carriage seating part  353 , and the like, which will be described below, when they are rotated, and may be perpendicular to the entrance direction D1 and may be a direction that is parallel to the illustrated y axis. Furthermore, the positive direction in the illustrated y axis may be a leftward direction, and the negative direction may be a rightward direction. 
     Furthermore, the vertical direction may be an upward/downward direction illustrated in  FIG.  1   , and may be a direction that is perpendicular to the above-described rotational direction and the entrance direction D1 and may be a direction that is parallel to the illustrated z axis. The upward direction may be the positive direction of the z axis and the downward direction may be the negative direction of the z axis. A direction, in which the gravitational force is applied to an object, may be a vertically downward direction, and an opposite direction thereto may be a vertically upward direction. However, this is arbitrarily set to help understanding and description, and the directions are relative, and may vary according to directions and postures, in which the sterilizer  1  is arranged. 
     The housing  12  of the sterilizer  1  may include a temperature raising housing  22  that is the housing  12  of the temperature raising module  20 , a sterilization housing  32  that is the housing  12  of the sterilization module  30 , and a cooling housing  42  that is the housing  12  of the cooling module  40 , and the housings  12  are connected to each other to constitute the entire housing  12 . Although it is illustrated in an embodiment of the present disclosure that the temperature raising module  20 , the sterilization module  30 , and the cooling module  40  are disposed along the entrance direction D1, but the disposition sequence and the number of the modules are not limited thereto and various combinations are possible. 
     The temperature raising housing  22  may define an outer wall of a temperature raising space  21  located in an interior thereof, the sterilization housing  32  may define an outer wall of a sterilization space  31  located in an interior thereof, and the cooling housing  42  may define an outer wall of a cooling space  41  located in an interior thereof. Accordingly, the housing  12  may physically separate a sterilizer space  11  located in an interior thereof and an exterior space, and the sterilizer space  11  may include the temperature raising space  21 , the sterilization space  31 , and the cooling space  41 . 
     The modules are modules that apply at least a heat treatment to a product loaded in the carriage “C”, and thus may correspond to a carriage treating module  10 . A carriage space “C” located in an interior of the carriage treating module  10  may be formed inside the housing  12 . The carriage space may include the sterilizer space  11 . That is, the temperature raising module  20 , the sterilization module  30 , and the cooling module  40  may be referred to as the carriage treating modules  10 , the temperature raising space  21 , the sterilization space  31 , and the cooling space  412  may be referred to as the carriage spaces, and the temperature raising housing  22 , the sterilization housing  32 , and the cooling housing  42  may be referred to as the carriage housings  12 . 
     In this way, the carriage treating modules  10  may be provided while being separated from each other such that the carriage “C” itself may be moved between the modules, and through this, the sterilizer  1  may be easily maintained and repaired and the carriage treating modules  10  may be separated to be replaced or repaired when an important repair is necessary. 
     Furthermore, even though equipment of a specific carriage treating module  10  breaks down and a defect is caused in the product, a problem may be caused only in the corresponding carriage treating module  10  and the product located in the corresponding carriage treating module  10 , and thus the number of wasted products may be minimized. 
     The carriage “C” that may enter the sterilizer, be treated, and be discharged is the carriage “C”, in which the product is loaded. A plurality of products, which are seated after foods to be treated are contained therein, may be loaded in the carriage “C”, and the carriage “C” itself may enter the sterilizer  1  to be treated. 
     Opening/Closing Module  50   
       FIG.  4    is a front view in a state, in which an inlet door  512  of the sterilizer  1  is positioned at an inlet opening location, according to an embodiment of the present disclosure. 
     Referring to  FIGS.  1  to  4   , the sterilizer  1  according to an embodiment of the present disclosure may include the opening/closing module  50 . The opening/closing module  50  may include an inlet door part  51  and an outlet door part  52  disposed at an inlet  511  of the sterilizer and an outlet  521  of the sterilizer, respectively. The inlet  511  of the sterilizer may be an inlet of the module located on the rearmost side, and the outlet  521  of the sterilizer may be an outlet of the module located on the foremost side. 
     In an embodiment of the present disclosure, because the inlet door part  51  is disposed on the rearmost side and the outlet door part  52  is disposed on the foremost side, the inlet door  512  is disposed at an inlet of the temperature raising module  20  that is the inlet  511  of the sterilizer, and an outlet door  522  is disposed at an outlet of the cooling module  40  that is the outlet  521  of the sterilizer. However, the kinds of the modules, to which the doors are connected, are not limited thereto, and may vary according to disposition of the modules. 
     In an embodiment of the present disclosure, the inlet door  512  may selectively open and close the inlet of the temperature raising module  20  that is the opening located on the rear side of the temperature raising space  21  and is the inlet  511  of the sterilizer such that the temperature raising space  21  and an outside of the temperature raising module  20  are communicated with each other. The outlet door  522  may selectively open and close the outlet of the cooling module  40  that is the opening located on the front side of the cooling space  41  and is the outlet  521  of the sterilizer such that the cooling space  41  and an outside of the cooling module  40  are communicated with each other. 
     Configurations of the inlet door  512  and the outlet door  522  are the same but only the locations thereof are different, and thus a description of the outlet door  522  will be replaced by describing the inlet door  512 . 
     The inlet door  512  may be moved upwards and downwards to be disposed at the inlet closing location and the inlet opening location. The inlet closing location refers to a location, at which the inlet door  512  may close the inlet of the temperature raising module  20 . 
     The inlet opening location refers to a location of the inlet door  512 , at which the inlet door  512  may open the inlet of the temperature raising module  20 , and in an embodiment of the present disclosure, refers to a location, at which the inlet door  512  deviates from the inlet closing location vertically upwards. 
     The opening/closing module  50  may include door supports  513  located on the left and right sides of the inlet door  512  such that the inlet door  512  may be moved from the inlet closing location to the inlet opening location. The door support  513  may be formed like a bar that stands up on a ground surface. Furthermore, the inlet door part  51  may include a door carriage  514  connected to the door support  513  to be slid, and connected to the inlet door  512 . That is, when the door carriage  514  connected to the inlet door  512  is slid upwards and downwards along the door support  513 , the inlet door  512  may be moved to the inlet closing location or the inlet opening location. The door carriage  514  may be a block that has a roller or a caster to be slid along a rail formed in the door support  513  or may be a block that is screw-coupled to a lead screw formed along the door support and may be moved along a vertical direction, but a driving scheme therefor is not limited thereto. 
     To transfer a driving force to the door carriage  514 , the sterilizer  1  according to an embodiment of the present disclosure may further include an inlet driving device  61 . The driving force generated by the inlet driving device  61  may be transferred to the door carriage  514  through a power transmission element, such as a chain, or may be transferred to the door support  513  that supports the door carriage  514  to move the inlet door  512 . To move the outlet door  522 , an outlet driving device  67  is applied, and only a location of the outlet driving device  67  is different but the outlet driving device  67  performs the same function. 
     As the inlet door  512  positioned at the inlet closing location is moved to the inlet opening location, the carriage “C”, in which the product is loaded, may enter the sterilizer space  11  through the inlet of the temperature raising module  20 . After the carriage “C” enters the sterilizer space  11 , the inlet door  512  located at the inlet opening location may be moved to the inlet closing location to close the inlet of the temperature raising module  20 . 
     The opening/closing module  50  may further include an inlet contact member that pushes the inlet door  512  toward the inlet of the temperature raising module  20  to make contact the inlet door  512  with the inlet of the temperature raising module  20  when the inlet door  512  is located at the inlet closing location for closing the inlet of the temperature raising module  20 . The inlet contact member may be a hydraulic cylinder, to which the inlet door  512  and opposite ends of the door support  513  are connected, but the kind thereof is not limited thereto. The inlet contact member may press the inlet door  512  to a front side to make contact the inlet door  512  with the temperature raising housing  22  that defines the inlet of the temperature raising module  20 , but a pressing direction thereof is not limited thereto. 
     The inlet door  512  may have a shape, a central area of which protrudes toward an outside. The inlet door  512  may have the shape, and a portion of the temperature raising housing  22  that surrounds the inlet of the temperature raising module  20  may be inserted into a concave inner side of the inlet door  512  such that a sealing state may be maintained well when the inlet door  512  is pressed by the inlet contact member after being moved to the inlet closing location. 
     The opening/closing module  50  may further include an inlet air-seal that is located on a surface of the inlet door  512 , which faces the temperature raising module  20  when the inlet door  512  is located at the inlet closing location. The inlet air-seal may be expanded as air is injected thereinto to contact the temperature raising housing  22  of the temperature raising module  20  so as to maintain the sealing state of the temperature raising space  21 . As the inlet air-seal is expanded by the introduced air, a space defined between the inlet of the temperature raising module  20  and the inlet door  512  may be effectively closed. The inlet air-seal may have an annular shape to correspond to the shape of the inlet of the temperature raising module  20 . 
     Temperature Raising Module  20  and Cooling Module  40   
     The temperature raising module  20  and the cooling module  40  is element disposed on a rear side and a front side of the sterilization module  30  in an embodiment of the present disclosure. However, as described above, the dispositions and the numbers of the temperature raising modules  20  and the cooling modules  40  are not limited thereto. 
     The temperature raising module  20  may raise temperature and the cooling module  40  may perform a cooling operation. Accordingly, the heat treating device of the temperature raising module  20  may be a temperature raising/heat-treating device  26 , and the heat treating device of the cooling module  40  may be a cooling/heat-treating device  46 . The temperature raising/heat-treating device  26  may be a kind of a heat treating device that is directed to increasing the temperatures of the temperature raising space  21  and the carriage “C”, in which the products located in the temperature raising space  21  are loaded, or allowing the temperatures to reach a specific temperature, and the cooling/heat-treating device  46  may be a kind of a heat treating device that performs an opposite function to that of the temperature raising/heat-treating device  26 , of absorbing heat from the cooling space  41  and discharging the heat to the outside. Accordingly, a temperature of the product located in the carriage “C” that passes through the temperature raising module  20  may be increased, and a temperature of the product loaded in the carriage “C” that passed through the cooling module  40  may be decreased. 
     Media such as water for heat transfer may be filled in the temperature raising space  21  or the cooling space  41  of the temperature raising module  20  and the cooling module  40 . Heated hot water may be filled in the temperature raising module  20 , and cooled cold water may be filled in the cooling module  40 . However, vapor instead of hot water may be used as the thermal medium in the temperature raising module  20 , and refrigerant instead of cooling water may be used as the thermal medium in the cooling module  40 . 
     Accordingly, the temperature raising/heat-treating device  26  or the cooling/heat-treating device  46  may include elements, such as a nozzle, a sprinkler, a showerhead, for filling water into a space in a scheme, such as ejection, and the temperature raising module  20  or the cooling module  40  may include an element, such as a valve, for discharging water filled in the temperature raising space  21  or the cooling space  41 . However, the elements of the temperature raising/heat-treating device or the cooling/heat-treating device, which are provided to fill and discharge water, are not limited to the above-described elements, and may be other mechanical elements. An ejection hole of the nozzle may face a lower side, and the ejection hole may be formed to face another area of an inner wall thereof. Furthermore, the ejection holes may be formed to face the carriage on the left and right sides of the carriage “C”. 
     The temperature raising module  20  or the cooling module  40  may further include a recirculation pipeline (not illustrated) to recirculate a thermal medium, such as water flowing up in the temperature raising space  21  or the cooling space  41 . The recirculation pipeline may be configured such that one end thereof is connected to be adjacent to a lower end of the housing  12  and an opposite end thereof is connected to be adjacent to an upper end of the housing  12 , and may include a pump that compresses the thermal medium to pump the thermal medium so as to receive water that flows up in the temperature raising space  21  or the cooling space  41  and eject the water from the corresponding space to the carriage “C” again. Furthermore, the opposite end of the recirculation pipeline may be connected to a heat treating device, and the heat treating device may eject the re-circulated thermal medium. 
     The temperature raising module  20  or the cooling module  40  may provide the air, a temperature of which has been changed via the rising thermal medium, to the temperature raising space  21  or the cooling space  41 . An air providing valve (not illustrated) that provides air to the temperature raising space  21  or the cooling space  41  is connected to a lower side of the temperature raising space  21  or the cooling space  41  such that the air passes through the hot water or the cold water and is delivered to the temperature raising space  21  or the cooling space  41 . Accordingly, because the air is heated by the hot water and is provided to the temperature raising space  21  or the air is cooled by the cooling water and is provided into the cooling space  41 , the air may have a temperature that is different from that of the thermal medium filled in an interior of the carriage “C” when the air reaches the carriage “C” to prevent a situation, in which the products loaded in the carriage “C” are unevenly heated or cooled, and uniformly heat the products. 
     The temperature raising module  20  or the cooling module  40  may further include a vapor provider (not illustrated) on a lower side of the housing  12  to provide vapor to a thermal medium located on a lower side of the temperature raising space  21  or the cooling space  41 . As the vapor is supplied to the thermal medium accommodated on the lower side of the temperature raising space  21  or the cooling space  41 , a temperature of the thermal medium provided to the carriage “C” through the heat treating device and a temperature of the thermal medium accommodated to the temperature raising space  21  or the cooling space  41  may be adjusted to be similar to each other. 
     The temperature raising module  20  or the cooling module  40  may further include an exhaust valve (not illustrated) that releases pressure to prevent the temperature raising space  21  or the cooling space  41  from excessively rising to a high pressure and maintain the pressure at a proper pressure level such that the exhaust valve passes through the housing  12 . An internal pressure may be controlled by opening and closing the exhaust valve, and may be adjusted to the proper pressure level when the internal pressure becomes abnormal. 
     The temperature raising module  20  and the cooling module  40  may further include the movement part  13  for moving the carriage “C” that enters the temperature raising space  21  and the cooling space  41 . The movement part  13  may move the carriage “C” at least from the temperature raising space  21  to the cooling space  41  via the sterilization space  31 . 
     The movement part  13  may include a heating movement part  23  disposed in the temperature raising space  21 , the sterilization movement part  33  disposed in the sterilization space  31 , and a cooling movement part  43  disposed in the cooling space  41 . 
     The heating movement part  23 , the sterilization movement part  33 , and the cooling movement part  43  may be divided by intermediate door parts  53 , which will be described below, and may be spaced apart from each other forwards and rearwards. The sterilization movement part  33  may include the sterilization movement part  33  and the carriage seating part  353 , such that they may be spaced apart from each other forwards and rearwards. The sterilization movement part  33  in turn may include a first connection unit  331  and a second connection unit  332  such that they are spaced apart from each other forwards and rearwards with respect to the carriage seating part  353 . 
     Because the movement parts  13  thereof are spaced apart from each other forwards and rearwards, areas, in which the carriage “C” is not supported, are formed between the movement parts  13 . An interval between the movement parts  13  of the sterilizer  1  according to an embodiment of the present disclosure may be smaller than a forward/rearward width of the carriage “C”. Preferably, a distance, by which the plurality of wheels included in the carriage “C” are spaced apart from each other, may be smaller than the interval between the movement parts  13  such that a palette of the carriage “C”, in which the products are loaded, is moved forwards. Because the interval between the movement parts  13  is determined in this way, a situation, in which the wheels of the carriage “C” are inserted into the spaces between the movement parts  13  such that the carriage “C” cannot be moved, may be prevented. 
     Each of the movement parts  13  may include movement rollers that are rotated while a rotational direction thereof is taken as an axial direction thereof. In detail, each of the movement parts  13  may include a plurality of movement rollers, and a movement belt that surrounds the plurality of movement rollers and is rotated as the movement rollers are rotated. Accordingly, the belt that is moved forwards as the movement rollers are rotated may move the carriage “C” seated on the movement belt forwards. However, configurations of the movement part  13  are not limited thereto. 
     To drive the movement rollers, the sterilizer  1  according to an embodiment of the present disclosure may further include a movement driving device. The movement driving device may be disposed on an outside of the housing  12 , and may generate a driving force and may transfer the driving force to the movement part  13  through another element. The movement driving device may include a heating movement part driving device  62  that generates a driving force for the heating movement part  23 , a cooling movement part driving device  66  that generates a driving force for the cooling movement part  43 , and a first connection driving device  63  and a second connection driving device  65 , which will be described below. 
     To transmit the driving force generated by the movement driving device, a movement transferring unit  70  is disposed. The movement transferring unit  70  is an element that passes through the housing  12  to transfer the driving force from the movement driving device to the movement part  13  as the movement part  13  is disposed in an interior of the housing  12 . The movement transferring unit  70  may include one or more shaft members, gears, and a belt or a chain that connects the gears. 
     In an embodiment of the present disclosure, the carriage “C” that entered the temperature raising space  21  may be transferred to the heating movement part  23  that is a kind of the movement part  13 , and may be disposed at a specific location in the temperature raising space  21  by an operation of the heating movement part  23  including a temperature raising rollers  231  that are a kind of movement rollers and a temperature raising belt  232  that is a kind of a movement belt, in a state, in which the carriage “C” is seated on the heating movement part  23 . A temperature raising/transfer unit  70  that is a kind of the movement transferring unit  70  may transfer the driving force of the heating movement part driving device  62  to the heating movement part  23 . The temperatures of the products loaded in the carriage “C” are raised by the temperature raising/heat-treating device  26  included in the temperature raising module  20 . The temperatures of the products may be raised to a sterilization temperature that is a predetermined temperature for carrying out sterilization. 
     After the temperatures of the products are raised, an intermediate door  533   a  of a rear intermediate door part  53   a  that is an intermediate door part  53  located on a rear side of the sterilizer may be moved from the closing location to the opening location. The heating movement part  23  may be operated such that the carriage “C” enters the sterilization space  31  from the temperature raising space  21 . 
     The carriage “C”, in which the products treated by the sterilization module  30  have been treated, and which will be described below, is discharged to the cooling space  41 . An intermediate door  533   b  of a front intermediate door part  53   b  may be moved from the closing location to the opening location, and the carriage “C” may be disposed from the sterilization space  31  by an operation of the second connection unit  332  and enter the cooling space  41 . 
     The products loaded in the carriage “C” that entered the cooling space  41  are cooled by the cooling/heat-treating device  46  of the cooling module  40 . After the cooling operation is finished, the outlet door may be moved from the door closing location to the door opening location, and the carriage “C” may be discharged to an outside of the sterilizer  1  by an operation of the cooling movement part  43 . The cooling/heat-treating device  46  may receive the carriage “C” from the sterilization module  30  in a state, in which a temperature of the cooling space  41  is adjusted to a sterilization temperature that is a temperature used for sterilization in the sterilization module  30 , to prevent damage to the products due to an abrupt temperature difference when the carriage “C” is transferred to the cooling module  40 . 
     Sterilization Module  30   
       FIG.  5    is a cross-sectional view obtained by cutting the sterilization module  30  by a plane that is perpendicular to the entrance direction D1, in a situation, in which the carriage “C” reaches a rotation part  35  of the sterilizer  1 , according to an embodiment of the present disclosure.  FIG.  6    is a view illustrating the rotation part  35  of the sterilizer  1  along a rotational direction thereof according to an embodiment of the present disclosure.  FIG.  7    is a perspective view conceptually illustrating a structure of the rotation part  35  of the sterilizer  1  according to an embodiment of the present disclosure.  FIG.  8    is a view illustrating an operation of applying a pressure such that a gripper pusher  3522  of the sterilizer  1  grips the carriage “C” according to an embodiment of the present disclosure. 
     Referring to  FIGS.  1  to  8   , the carriage “C” that entered the sterilization space  31  is transferred to the carriage seating part  353  located on an upstream side of the carriage seating part  353  with respect to the entrance direction D1. The above-described shape and driving scheme of the movement part  13  may be applied to the shapes and driving schemes of the second connection unit  332  and the carriage seating part  353  located on the downstream sides of the first connection unit  331  and the carriage seating part  353 , but because the carriage seating part  353  and a connection scheme of a seating driving device  68  that transfers the driving force thereto are slightly different, the description thereof will be replaced by the existing description and only the differences will be described below in a description of  FIG.  10   . 
     The driving force that is necessary for an operation of the first connection unit  331  may be provided by the first connection driving device  63  included by the movement driving device, and the driving force that is necessary for an operation of the second connection unit  332  may be provided by the second connection driving device  65  included by the movement driving device. The first connection transfer unit  70  and the second connection transfer unit  70  that pass through the housing  12 , and connect the first connection unit  331  and the second connection unit  332  to the first connection driving device  63  and the second connection driving device  65 , respectively, may transfer the driving force to the first connection unit  331  and the second connection unit  332 . 
     The first connection unit  331  and the second connection unit  332  are located on an outside of a contour drawn when a rotation part frame  351  is rotated. That is, the first connection unit  331  and the second connection unit  332  are disposed at locations that do not interfere rotation of the rotation part frame  351 . Contours of perfect circles drawn when the rotation part frame  351  is rotated are illustrated in the drawings obtained by viewing the sterilizer  1  along a rotational direction. Accordingly, the rotation part  35  may rotate the carriage “C” without any collision due to interferences. 
     The carriage “C” may reach the rotation part  35  due to an operation of the first connection unit  331 . The rotation part  35  is an element that grips the carriage “C” and rotates the carriage “C” about a rotation axis of the carriage “C”, which is parallel to the rotational direction, and may include the rotation part frame  351 , a rotation gripping part  352 , and the carriage seating part  353 . 
     The rotation part frame  351  is an element that rotates the gripped carriage “C” about the same direction by rotating the carriage “C” about the rotation axis. The rotation part frame  351  may rotate the carriage “C” such that the thermal medium is uniformly ejected to the carriage “C”. The rotation part frame  351  may include a frame horizontal-member  3511  manufactured by connecting members that extend in left/right directions and forward/rearward directions that are parallel to a horizontal surface, and a frame vertical-member  3512  that extend along the upward/downward directions, and may constitute a rectangular parallelepiped frame, into which the carriage “C” may be introduced forwards. However, a shape of the rotation part frame  351  is not limited thereto. 
     Because the rotation part frame  351  constitutes the frame of the rotation part  35 , the rotation gripping part  352  and the carriage seating part  353  are connected to the rotation part frame  351  and the transfer unit  70 , which will be described, also are connected to the rotation part frame  351  such that the rotation part frame  351  is rotated about the rotation axis of the carriage. 
     The rotation gripping part  352  is an element that approaches the carriage “C” to grip the carriage “C” that entered the rotation part  35  or is spaced apart from the carriage “C”. The rotation gripping part  352  is connected to an upper side of the rotation part frame  351  at a basic location, at which the carriage seating part  353  is disposed to be parallel to the entrance direction D1. 
     The rotation gripping part  352  is supplied with a working fluid, and is operated by a pressure thereof. The working fluid may be oil or air, and thus the rotation gripping part  352  may be operated by a hydraulic pressure or a pneumatic pressure. To supply the working fluid to the rotation gripping part  352 , the transfer unit  70  may include a working fluid delivering element  73 . The working fluid delivering element  73  and the rotation gripping part  352  are connected to each other through a gripper line (not illustrated) whereby the working fluid fed from the outside of the housing  12  into the housing  12  by the working fluid delivering element  73  may be provided to the rotation gripping part  352  through the gripper line. A detailed description of the working fluid delivering element  73  will be made in the description of  FIG.  10   . 
     The rotation gripping part  352  is configured to approach the carriage “C” to grip the carriage “C” that entered the rotation part frame  351  when receiving the working fluid, and to be spaced apart from the carriage “C” to release the gripping of the carriage “C” when discharging the working fluid. 
     In detail, the rotation gripping part  352  may include the gripper pusher  3522  that employs a scheme of pressing the carriage “C” for gripping. However, the rotation gripping part  352  may further include a member that grips the carriage “C” or performs a portion of a process of gripping the carriage “C” like a member that is coupled to a portion of the carriage “C” to fix a relative location of the carriage “C” with respect to the entire rotation part  35 . 
     The gripper pusher  3522  is moved downwards toward the carriage “C” when the working fluid is supplied. The moved gripper pusher  3522  presses the carriage “C” downwards to grip the carriage “C”. The gripper pusher  3522  may have a shape that may cover an upper end of the carriage “C” to restrain the carriage “C” from deviating from the gripper pusher  3522  when the carriage “C” is pressed. Accordingly, the gripper pusher  3522 , as illustrated in  FIGS.  6  and  8   , may have a “U” shape that is opened toward a lower side when being cut by a plane that is perpendicular to the rotational direction. In other words, the gripper pusher  3522  may have an inverse “U” shape or an arch shape. 
     The rotation gripping part  352  may include a pusher cylinder  3524  that linearly moves the gripper pusher  3522  along a vertical direction such that the gripper pusher  3522  moves downwards to press the carriage “C”. When the working fluid is supplied to the pusher cylinder  3524 , the pusher cylinder  3524  may be expanded to move the gripper pusher  3522  downwards, and when the working fluid is discharged from the pusher cylinder  3524 , the pusher cylinder  3524  may be contracted to move the gripper pusher  3522  upwards. 
     The rotation gripping part  352  may further include at least one pusher guide  3521  which is coupled to the frame horizontal-member  3511  included in the gripper frame to be slid, and a lower end of which is coupled to the gripper pusher  3522  whereby the gripper pusher  3522  is linearly moved without being shaken, is seated in the carriage “C”, and presses the carriage “C” downwards. The gripper pusher  3522  may be supported against the gripper frame at a location, at which the plurality of pusher guides  3521  are spaced apart from each other. The pusher guide  3521  may be inserted into a through-hole formed in the gripper frame to be slid downwards when the pusher cylinder  3524  is expanded, and to be slid upwards when the pusher cylinder  3524  is contracted. 
     The rotation gripping part  352  may further include an auxiliary pusher  3523  that further presses an upper surface of the carriage “C” to effectively grip the carriage “C”. The auxiliary pusher  3523  may be located at a center of the gripper pusher  3522 . 
     A location is indicated by a broken line in  FIG.  8    when the gripper pusher  3522  is located at a basic location, and a location when the gripper pusher  3522  is moved downwards to press the carriage “C” is indicated by a sold line. 
     The carriage seating part  353  included in the rotation part  35  is an element that is installed in the rotation part frame  351  and is configured such that the carriage “C” is seated thereon. The carriage seating part  353  is a kind of the movement part  13  like the one described above, and may include seating rollers  3531  and a seating belt  3532  similar to the above-described contents and may receive the driving force generated by the seating driving device  68  located on an outside of the housing  12  through a seating transfer member  72  included in the transfer unit  70  to be operated. The carriage seating part  353  may be rotated such that a partial force for the carriage “C” is generated from an upper surface thereof to a front side to move the carriage “C” seated on the upper surface forwards. 
     Because the carriage “C” is seated on the carriage seating part  353 , the carriage seating part  353  may support the carriage “C” when the gripper pusher  3522  presses the carriage “C”, and consequentially, may function to press the carriage “C” together with the gripper pusher  3522  to grip the carriage “C”. The carriage “C” may be supported by the carriage seating part  353  from a lower side, and be supported by the gripper pusher  3522  from an upper side to sandwich the carriage “C” therebetween. 
     The carriage seating part  353  may act as a resistance to movement of the carriage “C”, and may be controlled not to be compulsorily rotated while the rotation part frame  351  is rotated so as to restrain movement of the carriage “C” with respect to the carriage seating part  353  while the rotation part frame  351  is rotated. The carriage seating part  353  may be maintained in a stopped state, or may generate a resistance to rotation of the carriage “C”, which is generated in any direction due to the self-weight of the carriage “C”. To maintain the stopped state or generate the resistance, a brake that hinders movement of the seating rollers  3531  or the seating belt  3532  may be further disposed in the carriage seating part  353 , and may be operated or stopped such that the seating driving device  68  generates a partial force in an opposite direction to a direction, in which rotation is generated, to achieve the object. 
     Because the carriage seating part  353  may act as a resistance to movement of the carriage “C”, the carriage “C” may be prevented from being slid or deviating from the carriage seating part  353  while being rotated in the same direction as that of the rotation part frame  351  when the rotation part frame  351  is rotated. 
       FIG.  9    is a view illustrating a situation, in which the carriage “C” is rotated by rotating the rotation part frame  351  of the sterilizer  1  according to an embodiment of the present disclosure. 
     The carriage “C” may be gripped well by the above-described operation of the carriage seating part  353  and the rotation gripping part  352 , and a relative location thereof with respect to the rotation part frame  351  may be fixed even while the rotation part frame  351  is rotated. 
     In a state, in which the carriage “C” is gripped by the rotation gripping part  352 , the rotation part frame  351  may receive the driving force generated by a rotation driving device  64  through the transfer unit  70 , and may be rotated about the rotation axis of the carriage “C”. The rotation driving device  64  is located on an outside of the housing  12 , and functions to generate the driving force for rotating the rotation part frame  351 . The rotation part frame  351  may be rotated by 360 degrees, and may perform a swing operation of being rotated from a basic location in one direction by a specific angle and then being rotated from the basic location to an opposite direction to go to a location, at which it is rotated by the specific angle. 
     The rotation part  35  may further include a rotation support part  354 . The rotation support part  354  is an element that supports rotation of the rotation part frame  351  that is rotated about a rotational direction thereof. The rotation support part  354  may pass through a lower end of the sterilization housing  32  but may not be seated on a ground surface. The rotation support part  354  may include a rolling member that may be rolled about the rotational direction, at an upper end thereof, which entered the sterilization space  31 , and the rolling member may contact the rotation part frame  351 . When the rotation part frame  351  is rotated, the rolling member that contacts the rotation part frame  351  is rotated, whereby the rotation support part  354  may support a load of the rotation part frame  351  and guide rotation of the rotation part frame  351 . 
     A plurality of rotation support parts  354  may be provided, and may be disposed at locations that are symmetrical to each other with respect to the rotation part frame  351  such that the rotation part frame  351  is supported in a balanced way. In the drawings of an embodiment of the present disclosure, it has been described that a total of four rotation support parts  354  are spaced apart from each other along the entrance direction D1 and the rotational direction and are disposed to be symmetrical to each other with respect to the rotation part frame  351 , but the disposition thereof is not limited thereto. 
     The rotation part frame  351  may be rotated about the rotational direction, and a sterilization/heat-treating device  36  that is the heat treating device included in the sterilization module  30  may carry out a heat treatment at a sterilization temperature of a predetermined temperature. The sterilization/heat-treating device  36  may provide the thermal medium to the sterilization space  31  for the heat treatment. As the thermal medium is provided, the products loaded in the carriage “C” may be sterilized. The sterilization/heat-treating device  36  may be disposed on an upper side of an inner surface of the sterilization housing  32 , but a location thereof is not limited thereto. The thermal medium may be hot water that is heated water, but other thermal media may be used. 
     Because the carriage “C” is heat-treated by applying the thermal medium while being rotated, the products loaded in the carriage “C” may be heat-treated more uniformly as compared with a case, in which the carriage “C” is heat-treated while the carriage “C” is stopped. 
     The sterilization/heat-treating device  36  that provides the thermal medium to the sterilization space  31  is a kind of a heat treating device. Accordingly, because the sterilization/heat-treating device  36  may have configurations that are the same as or similar to those of the temperature raising/heat-treating device  26  and the cooling/heat-treating device  46 , which have been described above, the sterilization module  30  may have a recirculation pipeline, an air providing device, a vapor providing device, and an exhaust valve, together with another carriage treating module  10 , in the same way. Accordingly, in a description of the sterilization/heat-treating device  36  of the sterilization module  30 , only a difference from the carriage treating module  10  will be described. 
     The sterilization/heat-treating device  36  may include a container having a punched plate having a plurality of fine holes. The thermal medium may be embedded in the container, and the embedded thermal medium may be ejected to an outside through the holes of the punched plate to heat-treat the products loaded in the carriage “C”. 
     As the rotation part frame  351  is rotated, the elements connected to the rotation part frame  351  also are rotated together. Accordingly, the rotation gripping part  352  and the carriage seating part  353  that grip the carriage “C” are rotated together. 
     After the heat treatment of the products loaded in the carriage “C” is finished, the rotation and the heat treatment are ended. First, the rotation part frame  351  returns to the basic location that is a location, at which the carriage seating part  353  and the sterilization movement part  33  are arranged in parallel to each other. As the working fluid is discharged from the rotation gripping part  352 , the pressure is reduced, and the gripper pusher  3522  deviates from the carriage “C” upwards to release the gripping. 
     Thereafter, the carriage seating part  353  may be operated to feed the carriage “C” to the second connection unit  332 , and the second connection unit  332  may be operated to feed the carriage “C” to the cooling module  40  that is the next carriage treating module  10 . When one of the intermediate door  533   a  of the intermediate door part  53 , which is located downstream side, is disposed at the closing location to block the carriage “C”, the intermediate door  533   a  on the downstream side is moved to the opening location in a state, in which the operation of the second connection unit  332  is stopped, to open the intermediate opening such that a state, in which the carriage “C” may be discharged from the sterilization space  31 , is created, and then the second connection unit  332  may be operated to feed the carriage “C” to the cooling module  40 . 
     Meanwhile, the rotation part frame  351  is rotated about the rotation axis of the carriage “C” that is parallel to the leftward/rightward directions, and has a perpendicular relationship with the entrance direction D1 that is a direction, in which the carriage “C” enters the rotation part frame  351 . Accordingly, because a rotation transfer member  71  and the like, which are provided to rotate the rotation part frame  351 , may be arranged along the leftward/rightward directions and may not be parallel to the entrance direction D1, the entire sterilizer  1  may shorten a length along the entrance direction D1. 
     Transfer Unit  70   
       FIG.  10    is a cross-sectional view obtained by cutting the transfer unit  70  of the sterilizer  1  by a plane that is perpendicular to the entrance direction D1 according to an embodiment of the present disclosure.  FIG.  11    is an enlarged view conceptually illustrating a form, in which the transfer unit  70  of the sterilizer  1  is connected to the rotation part frame  351 , according to an embodiment of the present disclosure.  FIG.  12    is a view illustrating the seating transfer member  72  of the sterilizer  1  according to an embodiment of the present disclosure.  FIG.  13    illustrates cross-section A-A′ of  FIG.  12   , and is a cross-sectional view obtained by cutting the seating transfer member  72  of the sterilizer  1  by a plane that is perpendicular to a rotational direction according to an embodiment of the present disclosure.  FIG.  14    is a cross-sectional view obtained by cutting a transfer member holder  75  of the sterilizer  1  by a plane that is perpendicular to the entrance direction D1 according to an embodiment of the present disclosure.  FIG.  15    is a cross-sectional view obtained by cutting the transfer member holder  75  of the sterilizer  1  by a plane that is perpendicular to a rotational direction according to an embodiment of the present disclosure. 
     To grip the carriage “C” while the rotation part frame  351  is rotating, a pressure of the working fluid applied to the gripper pusher  3522  has to be maintained, and the carriage seating part  353  has to apply a resistance to the movement of the carriage “C” to the carriage “C”. A power transmitting structure that may be rotated relatively is suggested in a form of the transfer unit  70  according to an embodiment of the present disclosure such that the elements may be operated while the connected members are not twisted during the rotation. 
     The transfer unit  70  is a power transmitting structure of the sterilization module  30 . The transfer unit  70  passes through the sterilization housing  32  to transfer the working fluid or the power from the outside of the sterilization housing  32  to an interior of the housing  12 . To minimize a size of the sterilizer space  11  in the interior of the housing  12  and to dispose only a minimum number of elements in the sterilizer space  11  that performs heat treatment, the element that generates the driving force is disposed on an outside of the housing  12  and the transfer unit  70  passes through the housing  12 . 
     The transfer unit  70  includes the working fluid delivering element  73  that delivers the working fluid to the rotation gripping part  352 , and a rotation transferring member  71  that transfers the driving force to the rotation driving device  64 . The working fluid delivering element  73  and the rotation transferring member  71  are disposed such that any one of them surrounds the other and they are rotated relatively. It is illustrated in an embodiment of the present disclosure that the rotation transferring member  71  is formed in a form of multiple pipelines disposed on the outermost side, in a form, in which the rotation transferring member  71  surrounds the working fluid delivering element  73 , but the disposition of the working fluid delivering element  73  and the rotation transferring member  71  is not limited thereto. 
     The rotation transferring member  71  may be formed in a form of a pipe, a center of which is opened. An outer rotation adapter  712  may be coupled to an area that is adjacent to an end of the rotation transferring member  71  located on an outside of the housing  12 . The outer rotation adapter  712  may be formed in a form of a disk or a saw-tooth, and a belt connected to a driving shaft of the rotation driving device  64  may be wound on an outer peripheral surface of the outer rotation adapter  712  such that the outer rotation adapter  712  may receive the driving force of the rotation driving device  64 . As the outer rotation adapter  712  is rotated, the rotation transferring member  71  may be rotated about the rotation axis of the carriage “C”. 
     An end of the rotation transferring member  71 , which is located in the interior of the housing  12 , may be coupled to the rotation part frame  351 . Accordingly, as the rotation transferring member  71  is rotated about the rotation axis of the carriage “C”, the rotation part frame  351  is rotated. That is, the driving force of the rotation driving device  64  is transferred to the rotation part frame  351 , through the rotation transferring member  71 , to rotate the rotation part frame  351 . 
     An inner rotation adapter  711  may be coupled to an area that is adjacent to an end of the rotation transferring member  71  located on an inside of the housing  12 . The inner rotation adapter  711  is also formed in a form of a disk or a saw-tooth, and a belt for rotating the rotation part frame  351  and the like are coupled to an outer peripheral surface of the inner rotation adapter  711  to rotate the rotation part frame  351 . 
     The transfer unit  70  may further include the seating transfer members  72  that pass through the sterilization housing  32  and transfer the driving force generated by the seating driving device  68  to the seating rollers  3531 . The seating transfer members  72  may extend leftwards and rightwards, and may be surrounded by the rotation transferring member  71  and may be disposed to be rotated relatively. Although it has been described in an embodiment of the present disclosure that the seating transfer members  72  are inserted into a hollow formed at a center of the rotation transferring member  71  and are rotated relatively, the disposition of the rotation transferring member  71  and the seating transfer member  72  is not limited thereto. 
     The outer surface of the seating transfer member  72 , as illustrated, may have a shape, in which protrusions having an annular shape and grooves that are concaved in a radially inner side than the protrusions are alternately formed, as it goes to the left and right sides, in a partial area thereof. The convexo-concave areas may be located at a portion of the seating transfer member  72 , which is located on an inside of the housing  12 , and at a portion of the seating transfer member  72 , which is located on an outside of the housing  12 . Due to the shape, even when being connected to the housing  12  to be rotated, the seating transfer member  72  may be moved to the inside of the housing  12  or may not be moved to the outside of the housing  12  to maintain a relative location in relationship with the housing  12 , according to the rotational direction. 
     An outer seating adapter  722  may be coupled to an end of the seating transfer member  72 , which is located on an outside of the housing  12 . The outer seating adapter  722  may be formed in a form of a disk, and a belt connected to a driving shaft of the seating driving device  68  may be wound on an outer peripheral surface of the outer seating adapter  722  such that the outer seating adapter  722  may receive the driving force of the seating driving device  68 . As the outer seating adapter  722  is rotated, the seating transfer member  72  may be rotated about the rotation axis of the carriage “C”. 
     An inner seating adapter  721  may be connected to an end of the seating transfer member  72 , which is located on an inside of the housing  12 . The inner seating adapter  721  transfers the driving force to the seating rollers  3531 . Accordingly, as the seating transfer member  72  is rotated about the rotational direction, the seating roller  3531  is rotated. That is, through the seating transfer member  72 , the driving force of the seating driving device  68  is transferred to the seating rollers  3531  to rotate the seating rollers  3531 . 
     The elements of the working fluid delivering element  73  may be formed in the seating transfer member  72 . The working fluid delivering element  73  may include a working fluid line  731  that is a passage that passes the seating transfer members  72  leftwards and rightwards such that the working fluid may flow through an interior thereof. That is, in an embodiment of the present disclosure, the working fluid line  731  is a slot formed in the seating transfer member  72 . However, the working fluid line  731  may be a separate pipe member. 
     A working fluid outlet may be provided. An inner working fluid outlet  733  is an element, through which the seating transfer member  72  passes through the seating transfer member  72  from the working fluid line  731  such that the working fluid is discharged to the rotation gripping part  352 . An outer working fluid outlet  713  is a hole that passes through an inside and an outside of the rotation transferring member  71 . While the rotation transferring members  71  are rotated relatively, the gripper line and the inner working fluid outlet  733  are communicated with each other by the outer working fluid outlet  713 . 
     A plurality of inner working fluid outlets  733  may be provided. The plurality of outer working fluid outlets  713  may be configured to correspond to the number of the inner working fluid outlets  733 . The number of the working fluid lines  731  also may correspond to the number of the inner working fluid outlets  733  such that the working fluid lines  731  correspond to the inner working fluid outlets  733 , respectively. It is illustrated in an embodiment of the present disclosure that six inner working fluid outlets  733  may be formed and a total of six outer working fluid outlets  713  and a total of six working fluid lines  731  are formed, but the numbers thereof are not limited thereto, and their numbers may be four as another example. 
     The plurality of inner working fluid outlets  733  may be formed on a spiral that is wound on an outer peripheral surface of the seating transfer member  72  along the rotational direction at a specific interval. Although the inner working fluid outlet  733  may be disposed such that the adjacent inner working fluid outlets  733  have an included angle of 45 degrees in a cross-section obtained by cutting the seating transfer member  72  by a plane that is perpendicular to the rotational direction, the included angle is not limited thereto. The plurality of outer working fluid outlets  713  may be disposed on the outer peripheral surface of the rotation transferring member  71  along the rotational direction at a specific interval, or may be disposed along the spiral in the same way as that of the inner working fluid outlets  733 . 
     The inner working fluid outlets  733  may be provided in an area, in which the above-described groove of the seating transfer member  72  is formed. Furthermore, the outer working fluid outlets  713  may be disposed in a recess that is formed on an inner surface of the rotation transferring member  71 , in which grooves are formed in a radially outward direction at a specific interval, to correspond to the area, in which the groove of the seating transfer member  72  is formed. An annular passage may be formed in the area, in which the groove is formed, between the outer surface of the seating transfer member  72  and the inner surface of the rotation transferring member  71  such that all of the inner working fluid outlets  733  and the outer working fluid outlets  713  are communicated with the corresponding passages even though they are not aligned to coincide with each other when the rotation transferring member  71  and the seating transfer member  72  are rotated relatively. Accordingly, a situation, in which the working fluid may be delivered to the rotation gripping part  352 , may be consistently maintained. 
     The working fluid delivering element  73  may include a working fluid inlet  732 , through which the working fluid is introduced into the working fluid line  731 . The working fluid inlet  732  may be formed at an end of the seating transfer member  72 , which is located on an outside of the housing  12 . The working fluid inlet  732  may be provided in the area, in which the groove of the seating transfer member  72  is formed, may be communicated with an outer inlet  751 , and may receive the working fluid through a working fluid providing pipeline connected to the outer inlet  751 . That is, when the outer inlet  751  and the working fluid inlet  732  are aligned with each other to be communicated with each other, the working fluid providing pipeline may deliver the working fluid to the outer inlet  751  and the outer inlet  751  may deliver the working fluid to the working fluid inlet  732  whereby the working fluid may finally reach the working fluid line  731 . 
     The transfer member holder  75  may be coupled to an end of the seating transfer member  72 , which is located on an outside of the housing  12 . The transfer member holder  75  may be coupled to the seating transfer member  72  in a form, in which the transfer member holder  75  surrounds the seating transfer member  72 . Accordingly, the seating transfer member  72  may be coupled to the transfer member holder in a form, in which an end of the seating transfer member  72  is inserted into a space  752  defined by the transfer member holder, and a shape of the inner surface of the transfer member holder  75  corresponds to a shape of the outer surface of the seating transfer member  72 . 
     In detail, grooves recessed in a radially outward direction and protrusions protruding further in a radially inward direction may be formed alternately leftwards and rightwards on the inner surface of the transfer member holder  75 , and the grooves of the transfer member holder  752  may be disposed at a location corresponding to the groove of the seating transfer member  72 , the outer inlet  751  may be disposed in the groove of the transfer member holder  75 , and the protrusions of the transfer member holder  75  may contact the protrusions of the seating transfer member  72 . Rotation of the seating transfer member  72  may be stably supported by disposing bearings between the contacting protrusions. 
     The relationship is similar to shapes of the convexo-concave area of the seating transfer member  72  located on the inside of the housing  12 , and a portion of the inner surface of the rotation transferring member  71  that surrounds the area. Accordingly, the inner surface of the transfer member holder  75  and the outer surface of the seating transfer member  72  contact each other, and are spaced part from each other in the area, in which the groove is formed, to form an annular passage. The annular passage may be communicated by the corresponding passage even though all of the outer inlet  751  and the working fluid inlet  732  are not aligned with each other when the seating transfer member  72  is rotated in a state, in which the transfer member holder  75  is fixed. Accordingly, a situation, in which the working fluid may be delivered to the working fluid lines  731  may be consistently maintained. 
     The transfer member holder  75  is an element that fixes the seating transfer member  72  outside the housing  12 . The outer inlet  751  may be an opening that is formed as the transfer member holder  75  that surrounds the seating transfer member  72  and is coupled to the seating transfer member  72  passes therethrough from an inner side to an outer side. The working fluid inlet  732  also may be an opening that passes through the working fluid line  731  and the outer surface of the seating transfer member  72 . The working fluid providing pipeline (not illustrated) may be connected to a working fluid source (not illustrated), in which the working fluid is contained, may be connected to the outer surface of the transfer member holder  75 , and may provide the working fluid to the outer inlet  751  formed in the transfer member holder  75 . 
     A plurality of working fluid inlets  732  may be provided, and may be connected to the working fluid lines  731 , respectively. The plurality of outer inlets  751  may be configured to correspond to the number of the working fluid inlets  732 . In an embodiment of the present disclosure, because six working fluid lines  731  may be disposed, six working fluid inlets  732  and six outer inlets  751  may be provided, but the numbers thereof are not limited thereto, and their numbers may be four in another example. 
     The plurality of working fluid inlets  732  may be formed on a spiral that is wound on an outer peripheral surface of the seating transfer member  72  along the rotational direction at a specific interval. Although the working fluid inlet  732  may be disposed such that the adjacent working fluid inlets  732  have an included angle of 45 degrees in a cross-section obtained by cutting the seating transfer member  72  perpendicularly to the extension direction, the included angle is not limited thereto. The plurality of outer inlets  751  may be disposed on the outer peripheral surface of the transfer member holder  75  along the rotational direction at a specific interval, or may be disposed along the spiral in the same way as that of the inner working fluid inlets  732 . 
     Due to the above-described disposition, all of the working fluid inlets  732  and the outer inlets  751  may be aligned with each other to be communicated with each other when the seating transfer member  72  is disposed at a specific location, and the working fluid may be delivered to the interior of the housing  12 . 
     When the rotation transferring member  71  is rotated to rotate the carriage “C”, the carriage “C” has to be fixed to the seating transfer member  72  and thus is not rotated, whereby the rotation transferring member  71  and the seating transfer member  72  may be rotated relatively. In this situation, due to the above-described structure, the working fluid may be provided from the working fluid source to the working fluid lines  731 , through the outer inlets  751  and the working fluid inlets  732 . 
     The transfer unit  70  may include a transfer part guide  74 . When the rotation transferring member  71  passes through the housing  12 , the transfer part guide  74  may be disposed between the housing  12  and the rotation transferring member  71 . Accordingly, the transfer part guide  74  may be formed to surround a portion of the outer peripheral surface of the rotation transferring member  71 . The transfer part guide  74  may include a bearing that supports the rotation transferring member  71  on an inside thereof to support rotation of the rotation transferring member  71 , and may include a packing formed of a flexible material to maintain an airproof state and a waterproof state, at a border of the transfer unit  70  and the housing  12 . Furthermore, the transfer part guide  74  may have a shape that extends by a specific length along the rotational direction to support the rotation transferring member  71 , and may be coupled to the inner surface or the outer surface of the housing  12  through a fastening member. Accordingly, a problem, such as a braking or deformation that is caused when an excessively high load is applied to the rotation transferring member  71  at a location, at which the rotation transferring member  71  and the housing  12  meet each other, may be prevented. 
     The transfer unit  70  may further include a transfer support member  76 . Due to characteristics of the rotation part  35 , by which the carriage “C” is seated and rotated, the rotation transferring member  71  may be disposed at a location that is spaced apart from a ground surface at a specific height. Accordingly, a structure for locating the rotation transferring member  71 , the seating driving device  68 , and the like at a specific height, and stably supporting them may be necessary, and the transfer support member  76  may perform the function. The transfer support member  76  may be located outside the housing  12  and may stand up on the ground surface to have a specific height, and the rotation transferring member  71 , the transfer member holder  75 , the seating driving device  68 , and the like may be seated on the transfer support member  76  to be supported. 
     The sterilizer  1  according to an embodiment of the present disclosure may have the above-described transfer unit  70 , and thus the pipelines and the power transmitting structure may be rotated relatively without being twisted with each other, and the structures located in the interior of the housing  12  may be rotated while locations of the elements that generate power are fixed to the outside of the housing  12 . Accordingly, a configuration difficulty in installing the seating driving device  68  that generates power for rotating the carriage seating part  353  in the rotation part frame  351  and operating the seating driving device  68  may be solved. Furthermore, a configuration difficulty in installing a structure that controls the working fluid that is to be supplied to the rotation gripping part  352  in the rotation part frame  351  may be solved. 
     Intermediate Door Part  53   
       FIG.  16    is a cross-sectional view obtained by cutting the intermediate opening/closing part  53  of the sterilizer  1  by a plane that is perpendicular to the rotational direction in a state, in which the intermediate door  533   a  is disposed at an opened location, according to an embodiment of the present disclosure.  FIG.  17    is a cross-sectional view obtained by cutting the intermediate door part  53  of the sterilizer  1  by a plane that is perpendicular to the entrance direction D1 according to an embodiment of the present disclosure.  FIG.  18    is a cross-sectional view obtained by cutting the intermediate opening/closing part  53  of the sterilizer  1  by a plane that is perpendicular to a vertical direction according to an embodiment of the present disclosure.  FIG.  19    is a view conceptually illustrating the intermediate door part  53  of the sterilizer  1  in a state, in which the intermediate door is disposed at a closing location, according to an embodiment of the present disclosure.  FIG.  20    is an enlarged detailed view of a portion of a cross-section obtained by cutting the intermediate opening/closing part  53  of the sterilizer  1  by a plane that is perpendicular to the rotational direction in a state, in which the intermediate door  533   a  is disposed at a closing location, according to an embodiment of the present disclosure. 
     The intermediate door part  53  is an element that is disposed in each of the front and rear sides of the sterilization module  30  to distinguish the sterilization space  31  from the outside and selectively open and close the entrance of the sterilization module  30  and has a curved shape. Accordingly, a plurality of intermediate door parts  53  may be provided. Although it is illustrated in an embodiment of the present disclosure that the sterilizer  1  has two intermediate opening/closing parts  53   a  and  34   b,  the number thereof is not limited thereto. The opening/closing module  50  includes the intermediate door part  53 . 
     The configuration of the front intermediate door part  53   b  is disposed to be symmetrical to the rear intermediate door part  53   a  with respect to the sterilization module  30  when viewed along the rotational direction, and thus they are very similar, and a description of a door frame  531   b,  the intermediate door  533   b,  and a door guide  532   b  that are elements of the front intermediate door part  53   b  will be replaced by a description of the rear intermediate door part  53   a.    
     The intermediate door part  53  may include a door frame  531   a,  the intermediate door  533   a,  and a door guide  532   a,  and may be closed such that the carriage “C” cannot pass or opened such that the carriage “C” may pass due to the relative movements of the elements. 
     The door frame  531   a  is an element that is a frame of the intermediate door part  53 , which has an intermediate opening, through which the carriage “C” may be introduced and extracted. The intermediate opening is an opening that is formed in the door frame  531   a  to have a size that is large enough such that the shape of the longitudinal section of the carriage “C” may be included and may have a rectangular shape when viewed from the front side, and the shape thereof is not limited thereto. By the intermediate opening, the sterilization space  31  is communicated with the outside of the sterilization module  30 . However, the outside of the sterilization module  30  does not mean the outside of the sterilizer  1 . That is, the sterilization space  31  and the temperature raising space  21  may be communicated with each other by the intermediate opening located on that rear side, and the sterilization space  31  and the cooling space  41  may be communicated with each other by the intermediate opening located on the front side. 
     The movement part  13  may be divided with respect to the door frame  531   a.  The heating movement part  23  and the first connection unit  331  may be divided with respect to the door frame  531   a  located on the rear side, and the cooling movement part  43  and the second connection unit  332  may be divided with respect to the door frame  531   a  located on the front side. 
     The intermediate door  533   a  is an element, a location of which may be changed as the intermediate opening formed in the door frame  531   a  is closed or opened. The intermediate door  533   a  may be coupled to the door guide  532   a  connected to the door frame  531   a  to be slid, and the intermediate door  533   a  may be slid along the door guide  532   a  to open and close the intermediate opening. That is, the door guide  532   a  guides sliding of the intermediate door  533   a.    
     The door guide  532   a  may include two door guide rails disposed to be spaced apart from each other leftwards and rightwards. Left and right ends of the intermediate door  533   a  may be connected to the two door guide rails that are spaced apart from each other to be slid, and the intermediate door  533   a  may be slid along the door guide rails. 
     The intermediate door  533   a  may be slid along the door guide  532   a  to be located at the opening location and the closing location. The opening location is a location, at which the intermediate door  533   a  and the door guide  532   a  are disposed in a relative relationship to open the intermediate opening, and the closing location is a location, at which the intermediate door  533   a  and the door guide  532   a  are disposed in a relative relationship to close the intermediate opening. 
     The door guide  532   a  may guide the sliding of the intermediate door  533   a  such that a vertical height of the intermediate door  533   a  when the intermediate door  533   a  is disposed at the opening location is larger than a vertical height thereof when the intermediate door  533   a  is disposed at the closing location. Furthermore, the door guide  532   a  may guide the sliding of the intermediate door  533   a  such that the opening height, by which an upper end and a lower end of the intermediate door  533   a  are spaced apart from the opening location upwards and downwards, is smaller than the closing height, by which the upper end and the lower end of the intermediate door  533   a  are spaced apart from the closing location upwards and downwards. 
     The door guide  532   a  may be formed to be gradually inclined as the intermediate door  533   a  is moved from the closing location to the opening location. As in  FIG.  1   , when the intermediate door  533   a  is located at the closing location in a situation, in which the sterilizer  1  is viewed, a line connecting an upper end and a lower end of the intermediate door  533   a  is a door orientation line. The door guide  532   a  may have a structure that guides the intermediate door  533   a  such that an angle that is defined in a relationship of the door orientation line with a horizontal plane as the intermediate door  533   a  is moved from the closing location to the opening location. 
     The intermediate door  533   a  may have a shape, a center of which protrudes from the sterilization space  31  toward an outside. The profile of a cross-section obtained by cutting the door guide  532   a,  as in  FIG.  16   , also may have a shape, a center of which protrudes from the sterilization space  31  toward the outside such that the intermediate door  533   a  is slid. 
     A profile of a cross-section obtained by cutting the door guide  532   a  by a plane that is perpendicular to the rotational direction may be curved, and the intermediate door  533   a  may be slid along the door guide  532   a.  The curved profile may have an arc shape. Accordingly, a center (“P” of  FIG.  1   ) of the profile of the door guide  532   a  may be located in the sterilization space  31 . 
     Because the intermediate door  533   a  and the door guide  532   a  are formed in this way, a height occupied by the intermediate door part  53  in the vertical direction may be reduced as compared with a case, in which the standing intermediate door  533   a  is opened and closed in the vertical direction is used, and thus a size of the entire sterilizer  1  may be reduced. 
     The intermediate door part  53  may further include a door gear  5341   a  that is rotated to transfer the driving force to the intermediate door  533   a.  The intermediate door  533   a  may include a door plate that may be slid along the door guide  532   a  to open and close the intermediate opening, and a plurality of enmeshing members  535   a  that are engaged with gear teeth of the door gear  5341   a  to transfer the driving force to the door plate. As the enmeshing members  535   a  are pushed when the door gear  5341   a  is rotated, the door plate may be moved to adjust opening/closing of the intermediate opening. 
     The plurality of enmeshing members  535   a  may be disposed at a specific interval according to a profile in a cross-section obtained by cutting the door plate as in  FIG.  16   . The enmeshing members  535   a  may extend in a cylindrical shape along the rotational direction, and may be coupled to the door plate to be rotatable about the rotational direction. Accordingly, when the door gear  5341   a  pushes out the enmeshing members  535   a,  the enmeshing members  535   a  may be rotated by the force. In this way, because the intermediate door  533   a  includes the freely rotatable enmeshing members  535   a,  wearing of the door gear  5341   a  may be reduced as compared with a situation, in which the door plate is opened and closed by using gear teeth. 
     The shape of the door gear  5341   a  also may have a profile having a continuous curve that is convex radially inwards to correspond to the cylindrical enmeshing members  535   a.  The gear teeth of the door gear  5341   a  may be defined between concave valleys to correspond to cylindrical outer surfaces of the enmeshing members  535   a.  The enmeshing members  535   a  may be located in the concave valleys, and may be pressed by the gear teeth when the door gear  5341   a  is rotated. 
     In other words, the gear teeth of the door gear  5341   a  may be inserted into spaces between two adjacent ones of the plurality of enmeshing members  535   a , and the door gear  5341   a  may be rotated to apply a force to any one of the two adjacent enmeshing members  535   a.  Because a location of the door gear  5341   a  is fixed, the enmeshing members  535   a  are pushed out by the door gear  5341   a , and the door plate connected to the enmeshing members  535   a  may be slid along the door guide  532   a.    
     The plurality of enmeshing members  535   a  may be spaced apart from each other leftwards and rightwards further to be disposed in areas that are adjacent to the left and right ends of the door plate. That is, the enmeshing members  535   a  are not disposed over the entire area of the door plate as they go leftwards and rightwards, but may be disposed only in the areas that are adjacent to the left and right ends of the door plate while the enmeshing members  535   a  are not disposed at a central portion of the door plate. Accordingly, because the door gear  5341   a  is not located at the central area of the intermediate opening but is disposed adjacent to a periphery of the intermediate opening, it may not hinder entrance of the carriage “C” through the intermediate opening. 
     The door gear  5341   a  may be rotated about the rotational direction. The sterilizer  1  according to an embodiment of the present disclosure may further include a door driving device  5343   a  that generates the driving force for driving the intermediate door  533   a  and is located outside the sterilization housing  32 , and a door power transferring shaft  5342   a  that transfers the driving force of the door driving device  5343   a  to the door gear  5341   a.  The door power transferring shaft  5342   a  also may be rotated about the rotational direction, and thus the door gear  5341   a  connected thereto also may be rotated about the rotational direction. Accordingly, as the door gear  5341   a  is rotated, a force is applied to the enmeshing members  535   a  in an arbitrary direction that is perpendicular to the rotational direction, and the door may be slid. The door power transferring shaft  5342   a  may pass through the sterilization housing  32 , and may be connected to the door driving device  5343   a  and the door gear  5341   a  to transfer the driving force generated by the door driving device  5343   a  to the door gear  5341   a.  The door gear  5341   a,  the door driving device  5343   a,  and the door power transferring shaft  5342   a  may be included in door driving assemblies  534   a  and  344   b.    
     The intermediate door part  53  may further include an intermediate packing  536   a.  The intermediate packing  536   a  is an element that is formed along a circumference of the door frame  531   a  that defines the intermediate opening, and may be located between the door frame  531   a  and the intermediate door  533   a  to block a space between the door frame  531   a  and the intermediate door  533   a  when the intermediate door  533   a  is located at the closing location so as to maintain an airproof state or a waterproof state. Accordingly, the intermediate packing  536   a  may have a rectangular shape, a center of which is opened, when viewed from a front side, and may be formed of a flexible material to easily maintain an airproof state or a waterproof state. 
     Shape of Housing  12   
     A shape of the housing  12  will be described with reference to  FIGS.  1  and  2   . The housing  12  according to an embodiment of the present disclosure, as illustrated, may be formed such that a cross-sectional area thereof increases as it goes to the front side, in an area of the temperature raising module  20 . Then, the cross-sectional area may be a cross-sectional area obtained by cutting the housing  12  by a plane that is perpendicular to the entrance direction D  1 . Furthermore, the housing  12  may be formed such that a cross-sectional area thereof decreases as it goes from an area of the cooling space  41  to the front side. Furthermore, the housing  12  may be formed such that a cross-sectional area thereof is constant as it goes from an area of the sterilization module  30  to the front side. 
     In more detail, a height of a lower end on an outer surface of the housing  12  may be the same even though it goes to the front side, a height of an upper end thereof may increase in an area of the temperature raising module  20  as it goes to the front side, may decrease in an area of the cooling module  40 , and may be constant in an area of the sterilization module  30 . That is, a height of the shape of the housing  12  viewed as in  FIG.  1    may increase as it goes to a center thereof, and may be maintained constantly when it is adjacent to the center. 
     The housing  12  may have an external appearance of a shape having a varying cross-section as described above not to have an unnecessary interior space. An inlet and an outlet of the housing  12  may be opened and closed by the inlet door part  51  and the outlet door part  52 . 
     Meanwhile, among the housings  12 , the sterilization housing  32 , as illustrated in  FIGS.  1  and  2   , may not have a hollow cylindrical shape, and may be formed as in another embodiment of  FIG.  21   . 
       FIG.  21    is a perspective view of the sterilization housing  32  according to another embodiment of the present disclosure. 
     Referring to the drawing, the sterilization housing  32  according to another embodiment of the present disclosure may have a cross (+) shape when viewed along a vertical direction. Accordingly, the sterilization housing  32  may include a front/rear housing  321   c  that extends forwards and rearwards, and a left/right housing  322   c  that extends leftwards and rightwards, and the cross shape may be formed as the entrance direction housing  321   c  and the rotational direction housing  322   c  may cross each other to form the cross shape. 
     A leftward/rightward width of the rotation part frame may be larger than a leftward/rightward width of the sterilization movement part. This is because the sterilization movement part includes only a structure for feeding the carriage “C” simply to the front side, whereas the rotation part frame includes the carriage seating part for seating and feeding the carriage “C”, and structures for rotating the carriage “C”. Accordingly, the rotation part and the sterilization movement part form the cross shape when viewed from a top to a bottom, and the sterilization housing  32   c  that surrounds them also may have a cross shape. An external appearance of the sterilization housing  32   c  may have a cross shape as illustrated, and a shape of an inner surface thereof may have a cross shape whereby the sterilization housing  32   c  may accommodate the rotation part and the sterilization movement part, which have been described above. 
     The driving devices that generate driving forces, which have been described in an embodiment of the present disclosure, may be motors that generate rotational forces by using electric power or combustion engines that generate rotational forces by using fossil fuels. However, the kinds of the elements that constitute the driving devices are not limited thereto. 
     Although it may have been described until now that all the elements constituting the embodiments of the present disclosure are coupled to one or coupled to be operated, the present disclosure is not essentially limited to the embodiments. That is, without departing from the purpose of the present disclosure, all the elements may be selectively coupled into one or more elements to be operated. Furthermore, because the terms, such as “comprising”, “including”, or “having” may mean that the corresponding element may be included unless there is a specially contradictory description, it should be construed that another element is not extruded but may be further included. In addition, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meanings as those generally understood by those skilled in the art to which the present disclosure pertains. The terms, such as the terms defined in dictionaries, which are generally used, should be construed to coincide with the context meanings of the related technologies, and are not construed as ideal or excessively formal meanings unless explicitly defined in the present disclosure. 
     The above description is a simple exemplification of the technical spirits of the present disclosure, and the present disclosure may be variously corrected and modified by those skilled in the art to which the present disclosure pertains without departing from the essential features of the present disclosure. Accordingly, the embodiments disclosed in the present disclosure is not provided to limit the technical spirits of the present disclosure but provided to describe the present disclosure, and the scope of the technical spirits of the present disclosure is not limited by the embodiments. Accordingly, the technical scope of the present disclosure should be construed by the attached claims, and all the technical spirits within the equivalent ranges fall within the scope of the present disclosure.