Abstract:
Disclosed is a refrigeration device, comprising: a box body ( 1 ), the top of which is open; a door body ( 2 ) used for opening and closing the box body, which door body is pivotally connected to the top of the box body, the door body comprising a door liner ( 21 ), an upwards concave groove ( 211 ) being formed on a lower surface of the door liner, and the groove being adjacent to the outer edge of the lower surface of the door liner and surrounding same; and a door seal ( 3 ), the upper part of which is snap-fitted in the groove, when the door body is closed, the lower part of the door seal and the top of the box body are sealed in a butting mode, wherein an air passage ( 4 ) is formed between the door seal and the groove when the door body receives an upward external force. In the refrigeration device, the upper part of the door seal is snap-fitted in the door liner and can generate a relative displacement relative to the door liner to form the air passage, such that the outside air enters the box body, so that air pressures inside and outside the box body are balanced. In this way, a door is easy to open without affecting the sealing between the door body and the box body when the door body is closed again.

Description:
FIELD 
       [0001]    The present disclosure generally relates to a refrigeration device. 
       BACKGROUND 
       [0002]    A leakage of cool air in a refrigeration device may affect a cooling effect and cause large energy consumption, an inefficiency and a poor effect for storing food, meanwhile a condensation phenomenon exists. In the related art, in order to reduce the leakage of cool air, a fit clearance between a door liner and an outer frame of a shell in a freezer product is designed to be very small and a door seal has a good sealing performance. 
         [0003]    However, outside hot air may enter into the freezer after a door body is opened, while an air temperature may be reduced after the door body is closed, which may result in a certain pressure difference between an inside and an outside of the freezer and a better sealing performance, so the door body is tightly adsorbed on the shell. In particular, for a refrigeration device having a volume of more than 200 liters and a foam layer of about 90 mm thickness, the door body is difficult to open. In this case, the door body may be opened only by knocking the clearance with an external object and waiting until the internal pressure and the external pressure are balanced. 
       SUMMARY 
       [0004]    The present disclosure aims to solve at least one of the problems existing in the related art. For this purpose, an objective of the present disclosure is to provide a refrigeration device with a door body opened easily. 
         [0005]    A refrigeration device according to embodiments of the present disclosure includes: a shell having an open top portion; a door body configured to open and close the shell and pivotally connected to the top portion of the shell, in which the door body includes a door liner, a groove recessed upwardly is formed on a lower surface of the door liner and is adjacent to and surrounds an outer edge of the lower surface of the door liner; a door seal, in which an upper portion of the door seal is snapped in the groove, a lower portion of the door seal is pressed against the top portion of the shell hermetically when the door body is closed, and an air passage is formed between the door seal and the groove when the door body is subjected to an upward external force. 
         [0006]    With the refrigeration device according to embodiments of the present disclosure, by snapping the upper portion of the door seal in the door liner and generating a relative displacement relative to the door liner to form the air passage, such that the external air may enter into the shell, thus balancing the internal pressure and the external pressure of the shell. In this way, it is easy to open the door body and the sealing between the shell and the door body will not be affected when the door body is closed again. In addition, the refrigeration device according to embodiments of the present disclosure is simple to manufacture and low in cost. 
         [0007]    In one embodiment of the present disclosure, the door seal includes: a claw member snapped in the groove; and an airbag member disposed below the claw member, in which the airbag member is pressed to the top portion of the shell to form a seal between the door body and the shell when the door body is closed. 
         [0008]    Preferably, an upper portion of a cross-section of the groove is substantially semicircular and a lower portion of the cross-section of the groove is narrowed. Thus, after the claw member is snapped in the groove, it is difficult for the claw member to escape. 
         [0009]    In one embodiment of the present disclosure, the refrigeration device further includes: a first convex portion and a second convex portion each correspondingly disposed in a portion of the groove, in which two ends of the claw member are pressed against the first convex portion and the second convex portion respectively after a portion of the claw member stretches into the groove, in which the air passage is formed between another portion of the claw member and another portion of the groove when the door body is subjected to the upward external force. 
         [0010]    In one embodiment of the present disclosure, the first convex portion includes a plurality of first sub convex ribs, and the plurality of first sub convex ribs are disposed on an inner wall of a side of the groove at intervals to each other; the second convex portion includes a plurality of second sub convex ribs, and the plurality of second sub convex ribs are disposed in the groove at intervals to each other. 
         [0011]    In one embodiment of the present disclosure, each first sub convex rib and each second sub convex rib are formed respectively by extending inwardly from an inner wall of a corresponding side of the groove. 
         [0012]    Alternatively, the each first sub convex rib and the each second sub convex rib extend inwardly and horizontally. In this way, a processing is convenient and a manufacturing is simple. 
         [0013]    Alternatively, the each first sub convex rib and the each second sub convex rib extend inwardly and tilt upwardly or downwardly, respectively. In this way, the claw member pressing against the first sub convex rib hermetically and pressing against the second sub convex rib hermetically may be more compact. 
         [0014]    In one embodiment of the present disclosure, the first sub convex rib and the second sub convex rib are symmetrical with respect to the door seal therebetween. 
         [0015]    In another embodiment of the present disclosure, the first sub convex rib and the second sub convex rib are staggered with respect to the door seal therebetween. 
         [0016]    Additional aspects and advantages of embodiments of present disclosure will be given in part in the following descriptions, become apparent in part from the following descriptions, or be learned from the practice of the embodiments of the present disclosure. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0017]    These and other aspects and advantages of embodiments of the present disclosure will become apparent and more readily appreciated from the following descriptions made with reference to the accompanying drawings, in which: 
           [0018]      FIG. 1  is a schematic diagram of a refrigeration device according to an embodiment of the present disclosure, of which a door body is in a close state; 
           [0019]      FIG. 2  is an enlarged view of a region A shown in a circle in  FIG. 1 ; 
           [0020]      FIG. 3  is a bottom view of the door body of the refrigeration device in  FIG. 1 ; 
           [0021]      FIG. 4  is an enlarged view of a region B shown in a circle in  FIG. 3 ; 
           [0022]      FIG. 5  is a schematic diagram of the refrigeration device shown in  FIG. 1 , of which the door body is subjected to an upward external force, in which a groove and a door seal coordinated with the groove in a second partial region are illustrated; 
           [0023]      FIG. 6  is an enlarged view of a region C shown in a circle in  FIG. 5 ; 
           [0024]      FIG. 7  is a schematic diagram of the refrigeration device shown in  FIG. 1 , of which the door body is subjected to an upward external force, in which the groove and the door seal coordinated with the groove in a first partial region are illustrated; 
           [0025]      FIG. 8  is an enlarged view of a region D shown in a circle in  FIG. 7 . 
       
    
    
     DETAILED DESCRIPTION 
       [0026]    Reference will be made in detail to embodiments of the present disclosure. The embodiments described herein with reference to drawings are explanatory, illustrative, and used to generally understand the present disclosure. The embodiments shall not be construed to limit the present disclosure. The same or similar elements and the elements having same or similar functions are denoted by like reference numerals throughout the descriptions. 
         [0027]    In the specification, unless specified or limited otherwise, relative terms such as “central”, “longitudinal”, “lateral”, “front”, “rear”, “right”, “left”, “inner”, “outer”, “lower”, “upper”, “horizontal”, “vertical”, “above”, “below”, “up”, “top”, “bottom” as well as derivative thereof (e.g., “horizontally”, “downwardly”, “upwardly”, etc.) should be construed to refer to the orientation as then described or as shown in the drawings under discussion. These relative terms are for convenience of description and do not require that the present disclosure be constructed or operated in a particular orientation. In addition, terms such as “first” and “second” are used herein for purposes of description and are not intended to indicate or imply relative importance or significance. Thus, the feature defined with “first” and “second” may comprise one or more this feature. In the description of the present disclosure, “a plurality of” means two or more than two, unless specified otherwise. 
         [0028]    In the description of the present disclosure, it should be understood that, unless specified or limited otherwise, the terms “mounted,” “connected,” and “coupled” and variations thereof are used broadly and encompass such as mechanical or electrical mountings, connections and couplings, also can be inner mountings, connections and couplings of two components, and further can be direct and indirect mountings, connections, and couplings, which can be understood by those skilled in the art according to the detail embodiment of the present disclosure. 
         [0029]    In the following, a refrigeration device according to embodiments of the present disclosure will be described in detail with reference to  FIGS. 1-8 . In the following description of the present disclosure, take a freezer as an example of the refrigeration device to describe. Those skilled in the art should understand that, the refrigeration device according to embodiments of the present disclosure may be other type, such as a refrigeration counter, a refrigeration cabinet, a safety box, a refrigerator, etc. 
         [0030]    The refrigeration device according to embodiments of the present disclosure includes: a shell  1 , a door body  2  configured to open and close the shell  1  and a door seal  3 . As shown in  FIG. 1 , a top portion of the shell  1  is open for storing food. The door body  2  is pivotally connected to the top portion of the shell  1 , for example, the door body  2  is connected to the top portion of the shell  1  via a door hinge  8 . The door body  2  includes a door housing  22  and a door liner  21  disposed in the door housing  22 , in which a groove  211  recessed upwardly is formed on a lower surface of the door liner  21  and is adjacent to and surrounds an outer edge of the lower surface of the door liner  21 . In other words, the groove  211  is on the lower surface of the door liner  21  and surrounds the door liner  21 , as shown in  FIGS. 3 and 4 . Preferably, a shape of the groove  211  is substantially the same as a shape of the door liner  21 , for example, if the door liner  21  has a rectangular shape, the groove  211  also has a rectangular shape, as shown in  FIGS. 3 and 4 . 
         [0031]    As shown in  FIGS. 1, 5 and 7 , an upper portion of the door seal  3  is snapped in the groove  211 , and a lower portion of the door seal  3  is pressed against the top portion of the shell  1  hermetically when the door body  2  is closed, as shown in  FIG. 1 . An air passage  4  is formed between the door seal  3  and the groove  211  when the door body  2  is subjected to an upward external force, as shown in  FIGS. 5 and 6 . 
         [0032]    Specifically, as shown in  FIGS. 1 and 2 , the door body  2  is in a close state, and at this time the door seal  3  is compressed under a pressure due to a weight of the door body  2 , so that a seal is formed between the door body  2  and the shell  1 , and a hot and cool air exchange between an inside of the shell  1  and an outside environment does not occur, such that the effect for storing food is good. As shown in  FIGS. 5 and 6 , when the door is needed to be opened, a user may raise the door vigorously, i.e. provide an upward external force to the door, at this time, the air passage  4  is formed between the door seal  3  and the groove  211  and the external air may enter into the shell  1  via the air passage  4 , thus balancing the internal pressure and the external pressure of the shell  1 , so the door is easy to be opened. Meanwhile, since the upper portion of the door seal  3  is snapped in the groove  211 , although there is a relative displacement between the door seal  3  and the door liner  2 , the door seal  3  does not escape. In this way, after the door body  2  is closed, the door seal  3  still plays a role of sealing. 
         [0033]    With the refrigeration device according to embodiments of the present disclosure, by snapping the upper portion of the door seal  3  in the door liner  2  and generating a relative displacement relative to the door liner  2  to form the air passage  4 , such that the external air may enter into the shell  1 , thus balancing the internal pressure and the external pressure of the shell  1 . In this way, it is easy to open the door and the sealing between the shell  1  and the door body  2  will not be affected when the door body  2  is closed again. In addition, the refrigeration device according to embodiments of the present disclosure is simple to manufacture and low in cost. 
         [0034]    In some embodiments, as shown in  FIGS. 2, 6 and 8 , the door seal  3  includes: a claw member  31  and an airbag member  32 , in which the claw member  31  is snapped in the groove  211 , and the airbag member  32  is disposed below the claw member  31 , and the airbag member  32  is pressed to the top portion of the shell  1  to form the seal between the door body  2  and the shell  1  when the door body  2  is closed. Preferably, an upper portion of a cross-section of the groove  211  is substantially semicircular and a lower portion of the cross-section of the groove  211  is narrowed. Thus, after the claw member  31  is snapped in the groove  211 , it is difficult for the claw member  31  to escape. 
         [0035]    The refrigeration device according to embodiments of the present disclosure further includes a first convex portion  5  and a second convex portion  6 , in which the first convex portion  5  and the second convex portion  6  are accordingly disposed in a portion of the groove  211 , as shown in  FIGS. 1-2  and  FIGS. 7-8 , after a portion of the claw member  31  stretches into the groove  211 , two ends of the claw member  31  are pressed against the first convex portion  5  and the second convex portion  6  respectively, and the air passage  4  is formed between another portion of the claw member  31  and another portion of the groove  311  when the door body  2  is subjected to the upward external force, as shown in  FIGS. 5 and 6 . 
         [0036]    In other words, in an extending length of the groove  211 , as shown in  FIGS. 3 and 4 , a partial region has the first convex portion  5  and/or the second convex portion  6 . For a convenience of description, this partial region is called as a first partial region of the groove  211 , and a remaining partial region is called as a second partial region of the groove  211 . In the second partial region, the first convex portion  5  and the second convex portion  6  do not exist in the groove  211 . 
         [0037]    Thus,  FIGS. 7 and 8  illustrate the schematic diagram of the groove  211  and the door seal  3  coordinated with which in the first partial region. When the user raises the door body  2  vigorously, the corresponding claw member  31  may be lifted up in the groove  211  but is still pressed against the first convex portion  5  and the second convex portion  6  hermetically because of an existence of the first convex portion  5  and the second convex portion  6 , so that the air passage does not appear in the first partial region. 
         [0038]      FIGS. 5 and 6  illustrate the schematic diagram of the groove  211  and the door seal  3  coordinated with the groove  211  in the second partial region. When the user raises the door body  2  vigorously, the corresponding claw member  31  may be lifted up in the groove  211  because of a nonexistence of the first convex portion  5  and the second convex portion  6 , and then the air passage  4  is formed between the claw member  31  and the inner wall of the groove  211 , so that the external air may enter into the shell  1  via the air passage  4 , thus balancing the internal pressure and the external pressure of the shell  1 , and then by applying a smaller force, the door body  2  may be opened easily. 
         [0039]    In some preferable embodiments, as shown in  FIGS. 3 and 4 , the first convex portion  5  includes a plurality of first sub convex ribs  51 , and the plurality of first sub convex ribs  51  are disposed on an inner wall of a side of the groove  211  at intervals to each other; the second convex portion  6  includes a plurality of second sub convex ribs  61 , and the plurality of second sub convex ribs  61  are disposed in the groove  211  at intervals to each other. In other words, the above-described first partial region and second partial region are staggered to each other, thus making gas may enter into the shell  1  evenly and achieving the internal pressure and the external pressure balance faster. 
         [0040]    Alternatively, the first sub convex rib  51  and the second sub convex rib  61  are formed respectively by extending inwardly from an inner wall of a corresponding side of the groove  211 . For example, in some exemplary embodiments, as shown in  FIGS. 2 and 8 , the first sub convex rib  51  and the second sub convex rib  61  extend inwardly and horizontally, respectively, so that a processing is convenient and a manufacturing is simple. In other exemplary embodiments, the first sub convex rib  51  and the second sub convex rib  61  extend inwardly and tilt upwardly or downwardly, respectively. In other words, the first sub convex rib  51  and the second sub convex rib  61  extend obliquely from an inner wall of a corresponding side of the groove  211  aslant, so that the claw member  31  pressing against the first sub convex rib  51  hermetically and pressing against the second sub convex rib  61  hermetically may be more compact. 
         [0041]    The above-described method for forming the first sub convex rib  51  and the second sub convex rib  61  is not limited in the present disclosure. For example, the first sub convex rib  51  and the second sub convex rib  61  may be formed by injection molding with a formation of the groove  211 , i.e. the first sub convex rib  51  and the second sub convex rib  61  are integrally formed with the groove  211 . Alternatively, the first sub convex rib  51  and the second sub convex rib  61  may also be separate components respectively, and may be attached into the grooves  211 . 
         [0042]    In addition, in some embodiments, the first sub convex rib  51  and the second sub convex rib  61  are symmetrical with respect to the door seal therebetween, i.e., the first sub convex rib  51  and the second sub convex rib  61  are symmetrical along a center line of the groove  211 . In another embodiments, the first sub convex rib  51  and the second sub convex rib  61  are staggered with respect to the door seal therebetween, i.e., the first sub convex rib  51  and the second sub convex rib  61  are dissymmetrical along the center line of the groove  211 , for example, as shown in  FIG. 4 , the first sub convex rib  51  and the second sub convex rib  61  are staggered on both sides of the groove  211 . 
         [0043]    In the following, an opening process of the door body in the refrigeration device according to embodiments of the present disclosure will be described in detail with reference to  FIGS. 1-8 . 
         [0044]    Firstly, when the door body  1  is in the close state, as shown in  FIGS. 1 and 2 , the door seal  3  is compressed under the pressure due to the weight of the door body  2 , so that the seal is formed between the door body  2  and the shell  1 , and the hot and cool air exchange between the inside of the shell  1  and the outside environment does not occur, such that the effect for storing food is good. 
         [0045]    When the door body  1  is needed to be opened, the user may raise the door vigorously, i.e. provide an upward external force to the door (arrows shown in  FIGS. 5 and 7 ), at this time, the air passage  4  is formed between the door seal  3  and the groove  211  and the external air may enter into the shell  1  via the air passage  4 , thus balancing the internal pressure and the external pressure of the shell  1 , so the door is easy to be opened. Meanwhile, since the upper portion of the door seal  3  is snapped in the groove  211 , although there is the relative displacement between the door seal  3  and the door liner  2 , the door seal  3  does not escape. In this way, after the door body  2  is closed, the door seal  3  still plays the role of sealing. 
         [0046]    Other components of the refrigeration device according to embodiments of the present disclosure, such as the shell, an evaporator, a condenser, etc., as well as operations thereof are well known for those skilled in the art, not be described in detail herein. 
         [0047]    Reference throughout this specification to “an embodiment,” “some embodiments,” “one embodiment”, “another example,” “an example,” “a specific example,” or “some examples,” means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. Thus, the appearances of the phrases such as “in some embodiments,” “in one embodiment”, “in an embodiment”, “in another example,” “in an example,” “in a specific example,” or “in some examples,” in various places throughout this specification are not necessarily referring to the same embodiment or example of the present invention. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. 
         [0048]    Although explanatory embodiments have been shown and described, it would be appreciated by those skilled in the art that the above embodiments cannot be construed to limit the present invention, and changes, alternatives, and modifications can be made in the embodiments without departing from spirit, principles and scope of the present invention.