Patent Publication Number: US-2023139388-A1

Title: Mobility having negative pressure space and pressure control method

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     The present application claims priority to Korean Patent Application No. 10-2021-0148781, filed Nov. 2, 2021, the entire contents of which is incorporated herein for all purposes by this reference. 
     BACKGROUND OF THE PRESENT DISCLOSURE 
     Field of the Present Disclosure 
     The present disclosure relates to a mobility including a negative pressure space that forms a negative pressure space therein when transporting respiratory disease patients to prevent disease transmission by the respiratory disease patients and a method for controlling a pressure of the mobility. 
     Description of Related Art 
     In general, infectious diseases such as Middle East respiratory syndrome (MERS), severe acute respiratory syndrome (SARS), anthrax, Ebola virus disease, and Corona virus disease 19 (COVID-19) are transmitted through a respiratory system, so it is difficult to predict the route of transmission and the rate of spread of these diseases is fast, so immediate isolation is required. 
     Patients with these infectious diseases must be isolated promptly to block the route of infection and prevent further spread. 
     However, when a vehicle is used to isolate and transport such infectious disease patients, there is a problem in that all passengers inside the vehicle are infected with the disease through the infectious disease patient. 
     Furthermore, in the case of an ambulance, other equipment is placed inside, and as a place for isolating infectious disease patients is limited, it is difficult to use the ambulance for multi-purposes except for medical purposes, limiting its use. 
     The information included in this Background of the present disclosure section is only for enhancement of understanding of the general background of the present disclosure and may not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art. 
     BRIEF SUMMARY 
     Various aspects of the present disclosure are directed to providing a mobility which is used as a general vehicle in normal times and forms a negative pressure space inside the mobility when a special situation such as transporting infectious disease patients to prevent the spread of an infectious disease, and a method for controlling a pressure of the mobility. 
     In various aspects of the present disclosure, a mobility including a negative pressure space according to an exemplary embodiment of the present disclosure includes a mobility including an internal space; a partition wall that partitions the internal space of the mobility and includes an airflow path formed so that air flows in only one of the partitioned spaces so that any one of the partitioned spaces includes the negative pressure space; an air conditioning unit that is configured to blow the air into the internal space through an air discharge unit provided in the mobility; and an exhaust unit that is configured to discharge the air from the negative pressure space of the internal space of the mobility to an outside. Here, during the air conditioning unit and the exhaust unit are operated, as the air is discharged from another space through the airflow path of the partition wall to the outside through the exhaust unit, a negative pressure is formed in the negative pressure space. 
     The partition wall is formed to match the internal space of the mobility, and the airflow path is formed at a bottom portion of the partition wall. 
     The mobility further includes an opening and closing unit that configured to selectively open or close the airflow path formed on the partition wall, and the opening and closing unit is configured to be opened when the air flows from a remaining space of the partitioned spaces to the negative pressure space. 
     The opening and closing unit includes a bracket which is provided in the airflow path and includes an opening hole, and a shielding member which is provided in the opening hole and includes an upper portion rotatably connected to the bracket and a lower portion extending to be in contact with an end surface of the bracket on a side of the negative pressure space to cover the opening hole. 
     The air conditioning unit is configured to blow the air to a remaining space among the partitioned spaces except for the negative pressure space through the air discharge unit provided in front of the mobility. 
     The exhaust unit includes an exhaust passage that extends to a rear of the mobility in the negative pressure space, and an exhaust fan which is provided in the exhaust passage to discharge the air in the negative pressure space to the outside. 
     The partition wall is mounted to divide the internal space of the mobility into a front and a rear of the mobility, and the internal space partitioned by the partition wall includes a front internal space which is a general space and a rear internal space which is the negative pressure space. 
     The air conditioning unit includes a front air conditioning unit and a rear air conditioning unit, and the front air conditioning unit is configured to blow the air into the front internal space, and the rear air conditioning unit is configured to blow the air into the rear internal space. 
     The mobility further includes a control unit which is electrically connected to the air conditioning unit and the exhaust unit and configured to control the air conditioning unit and the exhaust unit, and the control unit is configured to receive an input of whether the partition wall is mounted in the internal space of the mobility according to occurrence of a patient, and controls to operate the air conditioning unit and the exhaust unit when the controller confirms the installation of the partition unit. 
     The control unit is configured to confirm whether the mobility is in an indoor air mode or an outdoor air mode when the partition wall is provided, and controls the air conditioning unit to be switched to the outdoor air mode. 
     When the partition wall is provided, the internal space includes a front internal space which is a general space and a rear internal space which is the negative pressure space, the air conditioning unit includes a front air conditioning unit and a rear air conditioning unit, the front air conditioning unit is configured to blow the air into the general space, and the rear air conditioning unit is configured to blow the air into the negative pressure space, the control unit is configured to control the front air conditioning unit to switch to an outdoor air mode, and the rear air conditioner unit to switch to an indoor air mode. 
     The control unit is further configured to receive pressure information on the general space and the negative pressure space partitioned by the partition wall, and controls an airflow volume of the front air conditioning unit to increase when a pressure difference in the general space and the negative pressure space reaches a predetermined level. 
     On the other hand, a method for controlling a pressure of the mobility including the negative pressure space according to an exemplary embodiment of the present disclosure includes the steps of confirming whether the partition wall is provided according to occurrence of a patient; switching the air conditioning unit to an outdoor air mode in accordance with confirmation of whether the air conditioning unit is an indoor air mode or the outdoor air mode when the installation of the partition wall is confirmed; and operating the air conditioning unit and the exhaust unit. 
     When the air conditioning unit includes a front air conditioning unit and a rear air conditioning unit, the front air conditioning unit is switched to the outdoor air mode and the rear air conditioning unit is switched to the indoor air mode in the switching step. 
     When the air conditioning unit includes a front air conditioning unit and a rear air conditioning unit, a temperature of the general space and the negative pressure space is individually controlled through operation of the front air conditioning unit and the rear air conditioning unit in the operating step. 
     The operating step further includes the steps of checking a pressure in the general space and the negative pressure space; and adjusting to increase an airflow volume of the front air conditioning unit when a pressure difference in the general space and the negative pressure space reaches a set level through the checking step. 
     In the mobility including the negative pressure space configured as described above and method for controlling the pressure of the mobility, the mobility is used a general vehicle in normal times, and when a special situation such as transferring infectious disease patients occurs, the internal space includes the general space and the negative pressure space by the partition wall, so that the infectious disease patients are safely transferred through the negative pressure space and the spread of infectious diseases is prevented. As a result, the usability of a vehicle is increased, and it is possible to respond to such special situation. 
     The methods and apparatuses of the present disclosure have other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated herein, and the following Detailed Description, which together serve to explain certain principles of the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a view showing a mobility including a negative pressure space according to an exemplary embodiment of the present disclosure. 
         FIG.  2    is a configuration view of the mobility including the negative pressure space shown in  FIG.  1   . 
         FIG.  3    is a view showing an internal space of a mobility. 
         FIG.  4    is a view showing an airflow path of a partition wall according to an exemplary embodiment of the present disclosure. 
         FIG.  5    is a view showing an open state of an opening and closing unit provided in a partition wall according to an exemplary embodiment of the present disclosure. 
         FIG.  6    is a view showing a closed state of an opening and closing unit provided in a partition wall according to an exemplary embodiment of the present disclosure. 
         FIG.  7    is a view showing an exhaust unit according to an exemplary embodiment of the present disclosure. 
         FIG.  8    is a flowchart of a method for controlling a pressure of a mobility including a negative pressure space according to an exemplary embodiment of the present disclosure. 
         FIG.  9    is a view for explaining a control method of the present disclosure. 
     
    
    
     It may be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various features illustrative of the basic principles of the present disclosure. The specific design features of the present disclosure as included herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particularly intended application and use environment. 
     In the figures, reference numbers refer to the same or equivalent parts of the present disclosure throughout the several figures of the drawing. 
     DETAILED DESCRIPTION 
     Reference will now be made in detail to various embodiments of the present disclosure(s), examples of which are illustrated in the accompanying drawings and described below. While the present disclosure(s) will be described in conjunction with exemplary embodiments of the present disclosure, it will be understood that the present description is not intended to limit the present disclosure(s) to those exemplary embodiments of the present disclosure. On the other hand, the present disclosure(s) is/are intended to cover not only the exemplary embodiments of the present disclosure, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the present disclosure as defined by the appended claims. 
     Hereinafter, a mobility including a negative pressure space and method for controlling a pressure according to various exemplary embodiments of the present disclosure will be described with reference to the accompanying drawings. 
       FIG.  1    is a view showing a mobility including a negative pressure space according to an exemplary embodiment of the present disclosure,  FIG.  2    is a configuration view of the mobility including the negative pressure space shown in  FIG.  1   ,  FIG.  3    is a view showing an internal space of a mobility,  FIG.  4    is a view showing an airflow path of a partition wall according to an exemplary embodiment of the present disclosure,  FIG.  5    is a view showing an open state of an opening and closing unit provided in a partition wall according to an exemplary embodiment of the present disclosure,  FIG.  6    is a view showing a closed state of an opening and closing unit provided in a partition wall according to an exemplary embodiment of the present disclosure,  FIG.  7    is a view showing an exhaust unit according to an exemplary embodiment of the present disclosure,  FIG.  8    is a flowchart of a method for controlling a pressure of a mobility including a negative pressure space according to an exemplary embodiment of the present disclosure,  FIG.  9    is a view for explaining a control method of the present disclosure. 
     As shown in  FIG.  1    and  FIG.  2   , a mobility including a negative pressure space according to an exemplary embodiment of the present disclosure includes a mobility  100  including an internal space (S); a partition wall that partitions the internal space of the mobility  100 , and includes an airflow path  210  formed so that air flows in only one of the partitioned spaces so that any one of the partitioned spaces includes the negative pressure space (S 2 ); an air conditioning unit  300  that blows the air into the internal space (S) through an air discharge unit (A) provided in the mobility  100 ; and an exhaust unit  400  that discharges the air from the negative pressure space (S 2 ) of the internal space (S) of the mobility  100  to an outside. 
     Here, the mobility  100  may be a vehicle, and include the internal space (S) in which a passenger may be accommodated. 
     The mobility  100  is provided with the air conditioning unit  300 , and the conditioned air generated in the air conditioning unit  300  is blown into the internal space (S) through the air discharge unit (A) provided in the mobility  100 . The air conditioning unit  300  may form cooling air or heating air through circulation of a refrigerant and cooling water, and a heat pump may be applied thereto. 
     On the other hand, the partition wall  200  may be provided in the internal space (S) of the mobility ( 100 ). The partition wall  200  may be detachably provided in the internal space (S) of the mobility  100 . 
     The partition wall  200  divides the internal space (S) into a plurality when provided inside the mobility  100  so that one of the partitioned spaces includes the negative pressure space (S 2 ). Here, among the partitioned spaces of the mobility, other space except the negative pressure space (S 2 ) becomes a general space (S 1 ) in which the negative pressure is not formed, and the other space is used as the negative pressure space (S 2 ). The airflow path  210  for allowing air to flow only to the negative pressure space (S 2 ) is formed in the partition wall  200  so that the air flows between the general space (S 1 ) and the negative pressure space (S 2 ). 
     Furthermore, the mobility  100  is provided with the exhaust unit  400  that discharges the air in the internal space (S) to the outside. The exhaust unit  400  is configured to discharge the air from the negative pressure space (S 2 ) side of the internal space (S) of the mobility  100  to the outside of the mobility, so that the infectious disease generated in the negative pressure space (S 2 ) partitioned by partition wall  200  may be discharged to the outside, and a negative pressure may be formed in the negative pressure space. 
     Through this, in a state in which the partition wall  200  is provided in the internal space (S) of the mobility  100 , during the air conditioning unit  300  and the exhaust unit  400  are operated, as the air passes through the airflow path  210  in the general space (S 1 ) and is discharged to the outside through the exhaust unit  400 , the negative pressure is formed in the negative pressure space (S 2 ). That is, as the air generated through the air conditioning unit  300  in the internal space (S) of the mobility  100  fills the general space (S 1 ), the pressure in the general space (S 1 ) increases. The air in the general space (S 1 ) is flowed to the negative pressure space (S 2 ) through the airflow path  210  of the partition wall  200 , but the air in the negative pressure space (S 2 ) is discharged to the outside through the exhaust unit  400 , so that the pressure in the negative pressure space (S 2 ) is lowered. Accordingly, the negative pressure may be formed in the negative pressure space (S 2 ), and as the air flows from the general space (S 1 ) to the negative pressure space (S 2 ), the infectious air in the negative pressure space (S 2 ) is blocked from flowing back to the general space (S 1 ) side. 
     Accordingly, the mobility  100  is utilized as a general mobility  100  when the partition wall  200  is not provided, and when the partition wall  200  is provided for the transfer of infectious disease patients, the internal space (S) is partitioned into the general space (S 1 ) and the negative pressure space (S 2 ), so that the mobility may be utilized as the emergency mobility  100  according to an emergency situation. 
     Detailed description of the present disclosure described above, as shown in  FIG.  3   , the partition wall  200  is mounted to partition the internal space (S) of the mobility  100  into a front and a rear. In the internal space (S) partitioned by the partition wall ( 200 ), the front internal space (S) is the general space (S 1 ), and the rear internal space (S) is the negative pressure space (S 2 ). 
     That is, the partition wall  200  is mounted to partition into front and rear with respect to the running direction of the mobility  100 , so that the general space (S 1 ) is formed in the front and the negative pressure space (S 2 ) is formed in the rear. 
     If the negative pressure space (S 2 ) is provided in the front in the internal space (S) of the mobility  100 , the contaminated air may be reintroduced into the general space (S 1 ) provided in the rear when the contaminated air is discharged to the outside. 
     Accordingly, in the mobility  100 , as the air conditioning unit  300  draws in uncontaminated air from the front of the mobility  100  and discharges it to the general space (S 1 ), the risk of contamination of the general space (S 1 ) is reduced, and the contaminated air generated in the negative pressure space (S 2 ) is discharged to the rear of the mobility  100  through the exhaust unit  400  to prevent the contaminated air from being reintroduced into the mobility. 
     Furthermore, when the mobility  100  is operated, the airflow is naturally formed from the general space (S 1 ) provided at the front to the negative pressure space (S 2 ) provided at the rear. In the general space (S 1 ) and the negative pressure space (S 2 ), a negative pressure is formed in the negative pressure space (S 2 ) by the pressure difference according to the airflow. Thus, the general space (S 1 ) and the negative pressure space (S 2 ) may be separated. 
     Accordingly, the air conditioning unit  300  allows the air to flaw into the general space (S 1 ) through the air discharge unit (A) provided in front of the mobility  100 . That is, the mobility  100  is provided with a plurality of air discharge units (A) for discharging the conditioned air generated by the air conditioning unit  300  to the internal space (S). By allowing the air to flaw into the general space (S 1 ) through the air discharge unit (A) provided in front of the mobility ( 100 ) during transport of infectious disease patients, the general space (S 1 ) has a higher pressure compared to the negative pressure space (S 2 ), as the air flows from the general space (S 1 ) to the negative pressure space (S 2 ) through the airflow path  210  of the partition wall  200 , the contaminated air in the negative pressure space (S 2 ) is not flawed to the general space (S 1 ). 
     Meanwhile, as shown in  FIG.  4   , the partition wall  200  is formed to match the internal space (S) of the mobility  100 , and the airflow path  210  is formed at the bottom portion. 
     Accordingly, as the partition wall  200  is formed to match the internal space (S) of the mobility  100 , the internal space (S) may be divided into the general space (S 1 ) and the negative pressure space (S 2 ). A sealing material is applied along the rim to block the airflow between the general space (S 1 ) and the negative pressure space (S 2 ). A glass portion (G) is applied to the partition wall  200  to confirm the situation of the negative pressure space (S 2 ) in the general space (S 1 ). 
     Furthermore, the airflow path  210  is formed at the bottom portion of the partition wall  200 , restricting the flow of the contaminated air generated in the negative pressure space (S 2 ) to the general space (S 1 ) side. Furthermore, when the pressure in the general space (S 1 ) reaches a certain level, as the air gradually flows to the negative pressure space (S 2 ) through the airflow path ( 210 ) of the partition wall  200 , the negative pressure is easily formed in the negative pressure space (S 2 ) through the airflow between the general space (S 1 ) and the negative pressure space (S 2 ). 
     On the other hand, the partition wall  200  is provided with an opening and closing unit  220  that selectively opens or closes the airflow path  210 , and the opening and closing unit  220  is configured to be opened when the air flows from the general space (S 1 ) to the negative pressure space (S 2 ). 
     As shown in  FIG.  5   , the opening and closing unit  220  is provided in the partition wall  200 , and the airflow path  210  is selectively opened by the opening and closing unit  220 . The opening and closing unit  220  is configured to be opened only when the air flows from the general space (S 1 ) to the negative pressure space (S 2 ), so that the airflow is allowed from the general space (S 1 ) to the negative pressure space (S 2 ), but when the air flows from the negative pressure space (S 2 ) to the general space (S 1 ), the opening and closing unit  220  is closed, so that the contaminated air in the negative pressure space (S 2 ) is blocked from flowing into the general space (S 1 ). 
     In detail, as shown in  FIG.  4   ,  FIG.  5    and  FIG.  6   , the opening and closing unit  220  includes a bracket  221  which is provided in the airflow path  210  and includes an opening hole  221   a  formed, and a shielding film  222  which is provided in the opening hole  221   a  and includes an upper portion rotatably connected to the bracket  221 , and a lower portion extending to be in contact with an end surface of the bracket  221  on the side of the negative pressure space (S 2 ) to cover the opening hole  221   a.    
     That is, the opening and closing unit  220  includes the bracket  221  and the shielding film  222 . Here, the bracket  221  is provided in the airflow path  210  to allow the air to flow through the opening hole  221   a.    
     The shielding film  222  for opening and closing the opening hole  221   a  is rotatably provided in the bracket  221 . The shielding film  222  is formed to cover the opening hole  221   a,  the upper portion of the shielding film is rotatably connected to the bracket  221 , and the lower portion of the shielding film is in contact with the end surface of the bracket  221  on the side of the negative pressure space (S 2 ). 
     For the present reason, as may be seen in  FIG.  5   , when the air flows from the general space (S 1 ) to the negative pressure space (S 2 ) through the opening hole  221   a,  the shielding film  222  is rotated by the airflow to open the opening hole  221   a,  allowing the air to flow from the general space (S 1 ) to the negative pressure space (S 2 ). 
     Conversely, as shown in  FIG.  6   , when the air flows from the negative pressure space (S 2 ) to the general space (S 1 ) through the opening hole  221   a,  the shielding film  222  is rotated according to the direction of the airflow and its own weight to close the opening hole  221   a,  blocking the airflow from the negative pressure space (S 2 ) to the general space (S 1 ). 
     The above-described opening hole  221   a  of the bracket  221  and the shielding film  222  may be configured in plurality. Accordingly, as one shielding film  222  is opened and closed, the excessive airflow is prevented, so that the airflow from the general space (S 1 ) to the negative pressure space (S 2 ) is stabilized. 
     On the other hand, as shown in  FIG.  7   , the exhaust unit  400  includes an exhaust passage  410  that extends to the rear of the mobility  100  in the negative pressure space (S 2 ), and an exhaust fan  420  which is provided in the exhaust passage  410  to discharge the air in the negative pressure space (S 2 ) to the outside. 
     In the present way, the exhaust unit  400  includes the exhaust passage  410  and the exhaust fan  420 . The exhaust passage  410  extends to the rear of the mobility  100  in the negative pressure space (S 2 ) of the internal space (S) of the mobility  100 . Therefore, the contaminated air discharged to the outside through the exhaust passage  410  is blocked to be reintroduced into the mobility. 
     Furthermore, the exhaust fan  420  is provided in the exhaust passage  410 , and when the exhaust fan  420  is operated, the air in the negative pressure space (S 2 ) is discharged to the outside. The exhaust fan  420  may be provided on the outlet side of the exhaust passage  410 , and a grill for protecting the exhaust fan  420  may be provided at the outlet of the exhaust passage  410 . 
     Accordingly, when the exhaust fan  420  is operated, the air in the negative pressure space S 2  is discharged to the outside through the exhaust passage  410 , so that the pressure in the negative pressure space S 2  is lowered, and a negative pressure is formed in the negative pressure space (S 2 ). As the contaminated air in the negative pressure space (S 2 ) is discharged to the rear of the mobility  100 , the reintroduction of the contaminated air into the mobility is prevented. 
     On the other hand, the air conditioning unit  300  includes a front air conditioning unit  310  and a rear air conditioning unit  320 . The front air conditioning unit  310  blows air into the front of the internal space (S), the rear air conditioning unit  320  blows air into the rear of the internal space (S). 
     Accordingly, the air conditioning unit  300  includes the front air conditioning unit  310  and the rear air conditioning unit  320 , securing the air conditioning performance of the mobility  100 . When the internal space (S) of the mobility  100  is partitioned into the general space (S 1 ) and the negative pressure space (S 2 ) by the partition wall  200 , as the conditioned air blows only in the general space (S 1 ), the comfortability in the negative pressure space (S 2 ) is reduced. 
     Accordingly, the front air conditioning unit  310  provides the conditioned air to the front of the internal space (S), the general space (S 1 ), and the rear air conditioning unit  320  provides the conditioned air to the rear of the internal space (S), the negative pressure space (S 2 ), so that it is possible to secure the comfortability both in the general space (S 1 ) and the negative pressure space (S 2 ). 
     In the instant case, by setting the airflow volume of the front air conditioning unit  310  to be greater than that of the rear air conditioning unit  320 , the pressure in the general space (S 1 ) is maintained higher than the pressure in the negative pressure space (S 2 ). Accordingly, the comfortability of the internal space (S) of the mobility  100  is secured as the conditioned air is provided, and as a negative pressure is formed in the negative pressure space (S 2 ), the flowing of the contaminated air to the general space (S 1 ) is blocked 
     Meanwhile, the air conditioning unit  300  and the exhaust unit  400  described above are controlled by the control unit  500 . That is, through the control of the air conditioning unit  300  and the exhaust unit  400  by the control unit  500  when a transfer of an infectious disease patient occurs, the mobility may be utilized as an emergency mobility in which a negative pressure is formed in the negative pressure space (S 2 ) among the general space (S 1 ) and the negative pressure space (S 2 ) partitioned by the partition wall  200 . 
     In detail, the control unit  500  receives an input of whether the partition wall  200  is provided when the transferring of an infectious disease patient occurs, and controls the air conditioning unit  300  and the exhaust unit  400  to be operated when the installation of the partition wall  200  is confirmed. 
     Here, whether the partition wall  200  is provided may be determined by an input command in the mobility  100  or sensing the partition wall  200  through a detector. Through this, the control unit  500  controls the operation of the air conditioning unit  300  and the exhaust unit  400  according to the transfer of the infectious disease patient upon completion of the installation of the partition wall  200 , forming a negative pressure in the negative pressure space (S 2 ) in the internal space (S) of the mobility  100  partitioned by the partition wall  200 . 
     The control unit  500  confirms whether it is an indoor air mode or an outdoor air mode when the partition wall  200  is provided, and controls the air conditioning unit  300  to be switched to the outdoor air mode. 
     Accordingly, when the installation of the partition wall  200  is completed, the control unit  500  controls to switch to the outdoor air mode so that external air flows into the internal space (S) of the mobility  100 . That is, when transferring the infectious disease patient, the contaminated air in the internal space (S) may be recirculated when switching to the indoor air mode. That is, when the contaminated air in the negative pressure space (S 2 ) is recirculated through the air conditioning unit  300  and discharged to the general space (S 1 ), the air in the general space (S 1 ) is also contaminated and the infectious disease is spread. Thus, the control unit  500  is to switch to the outdoor air mode when the partition wall  200  is provided, so that the contamination of the air in the general space (S 1 ) is blocked. 
     On the other hand, in another exemplary embodiment of the present disclosure, when the air conditioning unit  300  includes the front air conditioning unit  310  and the rear air conditioning unit  320 , the control unit  500  controls the front air conditioning unit  310  to be switched to the outdoor air mode, and the rear air conditioning unit  320  to be switched to the indoor air mode. 
     That is, the front air conditioning unit  310  is configured to blow air into the general space (S 1 ), and the rear air conditioning unit  320  is configured to blow air into the negative pressure space (S 2 ). The front air conditioning unit  310  draws the external air and blows it into the general space (S 1 ) in the outdoor air mode, and draws the air in the general space (S 1 ) and recirculates it in the general space (S 1 ) in the indoor air mode. Furthermore, the rear air conditioning unit  320  draws the external air and blows it into the negative pressure space (S 2 ) in the outdoor air mode, and draws the air in the negative pressure space (S 2 ) and recirculates it in the negative pressure space (S 2 ) in the indoor air mode. 
     When the front air conditioning unit  310  and the rear air conditioning unit  320  are constituted in the present way, individual air conditioning in the general space (S 1 ) and the negative pressure space (S 2 ) partitioned by the partition wall  200  may be performed. 
     Accordingly, when the partition wall  200  is provided according to the transfer of the infectious disease patient, the control unit  500  controls the front air conditioning unit  310  to be switched to the outdoor air mode so that external uncontaminated air flows into the general space (S 1 ), and controls the rear air conditioning unit  320  to be switched to the indoor air mode so that the conditioned air is supplied only to the negative pressure space (S 2 ). 
     Accordingly, by separating the air conditioning unit  300  for controlling the temperature of the general space (S 1 ) and the negative pressure space (S 2 ), individual temperature control of the general space (S 1 ) and the negative pressure space (S 2 ) is possible. Furthermore, a flow is formed in which the air in the general space (S 1 ) flows to the negative pressure space S 2  through the airflow path  210  of the partition wall  200 , so that the contaminated air in the negative pressure space S 2  is prevented to flow to the general space (S 1 ). 
     Meanwhile, the control unit  500  may further receive pressure information on the general space (S 1 ) and the negative pressure space (S 2 ) partitioned by the partition wall  200 . Here, the internal pressure of the general space (S 1 ) and the negative pressure space (S 2 ) may be measured through a detector provided in the internal space (S), and the corresponding pressure information is transmitted to the control unit  500 . 
     Through this, when a pressure difference in the general space (S 1 ) and the negative pressure space (S 2 ) reaches a set level, the control unit  500  controls the airflow volume of the front air conditioning unit  310  to be increased. Here, the preset level set in the control unit  500  may be set to a range in which the air in the negative pressure space (S 2 ) does not flow back into the general space (S 1 ) according to the pressure difference in the general space (S 1 ) and the negative pressure space (S 2 ). 
     Accordingly, in an exemplary embodiment of the present disclosure, because the air in the negative pressure space (S 2 ) is not flowed to the general space (S 1 ) when the pressure in the general space (S 1 ) is higher than the pressure in the negative pressure space (S 2 ), a state in which the pressure in the general space (S 1 ) is higher than that in the negative pressure space (S 2 ) has to be maintained. Accordingly, the control unit  500  receives the pressure information on the general space (S 1 ) and the negative pressure space (S 2 ), and when the pressure difference in the general space (S 1 ) and the negative pressure space (S 2 ) reaches a set level, the control unit  500  controls the airflow volume of the front air conditioning unit  310  to be increased, so that the pressure in the general space (S 1 ) is increased. 
     On the other hand, a method for controlling a pressure of the mobility  100  including the negative pressure space S 2  according to an exemplary embodiment of the present disclosure, as shown in  FIG.  8    and  FIG.  9   , includes the steps of confirming whether the partition wall  200  is provided according to occurrence of a patient (S 100 , S 110 ); switching the air conditioning unit to the outdoor air mode by confirming whether the air conditioning unit  300  is the indoor air mode or the outdoor air mode when the installation of the partition wall  200  is confirmed (S 200 , S 210 , S 310 , S 410 , S 510 ); and operating the air conditioning unit and the discharging unit (S 300 ). 
     That is, in a situation in which an infectious disease patient is transported, it is confirmed whether the partition wall  200  is provided according to the occurrence of the patient, and when the installation of the partition wall  200  is confirmed, the air conditioning unit  300  is switched to the outdoor air mode so that the external air may be introduced into the internal space (S) of the mobility  100 . Furthermore, by allowing the air conditioning unit  300  and the exhaust unit  400  to be operated, the external air is introduced into the general space (S 1 ), and the air in the general space (S 1 ) flows to the negative pressure space (S 2 ) through the airflow path  210  of the partition wall  200 , and is discharged to the outside through the exhaust unit  400 , forming a negative pressure in the negative pressure space (S 2 ). 
     On the other hand, in the switching step (S 200 ), when the air conditioning unit  300  includes the front air conditioning unit  310  and the rear air conditioning unit  320 , the front air conditioning unit  310  is switched to the outdoor air mode, and the rear air conditioning unit  320  is switched to the indoor air mode. 
     Furthermore, in the operating step (S 300 ), when the air conditioning unit  300  includes the front air conditioning unit  310  and the rear air conditioning unit  320 , the temperature of the general space (S 1 ) and the negative pressure space (S 2 ) is individually controlled through operation of the front air conditioning unit  310  and the rear air conditioning unit  320 . 
     That is, the front air conditioning unit  310  provides the conditioned air to the general space (S 1 ) which is the front of the internal space (S), and the rear air conditioning unit  320  provides the conditioned air to the negative pressure space (S 2 ) which is the rear of the internal space (S). Accordingly, the comfortability in both the general space (S 1 ) and the negative pressure space (S 2 ) may be secured. 
     In the instant case, the airflow volume in the front air conditioning unit  310  sets to be greater than that in the rear air conditioning unit  320 , so that the pressure in the general space (S 1 ) is maintained higher than the pressure in the negative pressure space (S 2 ). Accordingly, as the conditioned air is provided in the internal space (S) of the mobility  100 , the comfortability in the internal space (S) of the mobility ( 100 ) is secured and a negative pressure is formed in the negative pressure space (S 2 ), so that the flow of the contaminated air to the general space (S 1 ) is blocked 
     Accordingly, in an exemplary embodiment of the present disclosure, when the partition wall  200  is provided according to the transfer of an infectious disease patient, the front air conditioning unit  310  is switched to the outdoor air mode so that external uncontaminated air flows into the general space (S 1 ), and the rear air conditioning unit  320  is switched to the indoor air mode so that the conditioned air is supplied only to the negative pressure space (S 2 ). 
     Accordingly, because the air conditioning unit  300  for the temperature control of the general space (S 1 ) and the negative pressure space (S 2 ) is separated, the individual temperature control of the general space (S 1 ) and the negative pressure space (S 2 ) is possible, and the airflow is formed so that the air in the general space (S 1 ) flows to the negative pressure space (S 2 ) through the airflow path  210  of the partition wall  200 , so that the contaminated air in the negative pressure space (S 2 ) is blocked from flowing into the general space S 1 . 
     On the other hand, the operating step (S 300 ) further includes the steps of checking the pressure in the general space (S 1 ) and the negative pressure space (S 2 ) (S 310 ); and adjusting to increase the airflow volume of the air conditioning unit  310  when the pressure difference in the general space (S 1 ) and the negative pressure space (S 2 ) reaches a set level through the checking step (S 310 ) (S 320 ) (S 610 ). 
     Accordingly, in an exemplary embodiment of the present disclosure, when the pressure difference in the general space (S 1 ) and the negative pressure space (S 2 ) reaches a set level, the airflow volume of the front air conditioning unit  310  is increased (S 710 , S 810 ). 
     That is, in an exemplary embodiment of the present disclosure, because the air in the negative pressure space (S 2 ) is not flowed to the general space (S 1 ) when the pressure in the general space (S 1 ) is higher than the pressure in the negative pressure space (S 2 ), a state in which the pressure in the general space (S 1 ) is higher than that in the negative pressure space (S 2 ) has to be maintained. Accordingly, when the pressure difference in the general space (S 1 ) and the negative pressure space (S 2 ) reaches a set level, the airflow volume of the front air conditioning unit  310  is increased, so that the pressure in the general space (S 1 ) is increased. 
     In the mobility  100  including the negative pressure space (S 2 ) configured as described above and the method for controlling a pressure of the mobility, the mobility is usually used as a general vehicle, and when a special situation such as the transfer of an infectious disease patient occurs, the internal space (S) is partitioned into the general space (S 1 ) and the negative pressure space (S 2 ) by the partition wall  200 , so that the infectious disease patient is safely transported by the negative pressure space (S 2 ) and the spread of the infectious disease is prevented. Accordingly, the usability of a vehicle is increased, and it is possible to respond to the special situation. 
     Furthermore, the term related to a control device such as “controller”, “control apparatus”, “control unit”, “control device”, “control module”, or “server”, etc refers to a hardware device including a memory and a processor configured to execute one or more steps interpreted as an algorithm structure. The memory stores algorithm steps, and the processor executes the algorithm steps to perform one or more processes of a method in accordance with various exemplary embodiments of the present disclosure. The control device according to exemplary embodiments of the present disclosure may be implemented through a nonvolatile memory configured to store algorithms for controlling operation of various components of a vehicle or data about software commands for executing the algorithms, and a processor configured to perform operation to be described above using the data stored in the memory. The memory and the processor may be individual chips. Alternatively, the memory and the processor may be integrated in a single chip. The processor may be implemented as one or more processors. The processor may include various logic circuits and operation circuits, may process data according to a program provided from the memory, and may generate a control signal according to the processing result. 
     The control device may be at least one microprocessor operated by a predetermined program which may include a series of commands for carrying out the method included in the aforementioned various exemplary embodiments of the present disclosure. 
     The aforementioned invention can also be embodied as computer readable codes on a computer readable recording medium. The computer readable recording medium is any data storage device that can store data which may be thereafter read by a computer system and store and execute program instructions which may be thereafter read by a computer system. Examples of the computer readable recording medium include Hard Disk Drive (HDD), solid state disk (SSD), silicon disk drive (SDD), read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tapes, floppy discs, optical data storage devices, etc and implementation as carrier waves (e.g., transmission over the Internet). Examples of the program instruction include machine language code such as those generated by a compiler, as well as high-level language code which may be executed by a computer using an interpreter or the like. 
     In various exemplary embodiments of the present disclosure, each operation described above may be performed by a control device, and the control device may be configured by a plurality of control devices, or an integrated single control device. 
     In various exemplary embodiments of the present disclosure, the control device may be implemented in a form of hardware or software, or may be implemented in a combination of hardware and software. 
     Furthermore, the terms such as “unit”, “module”, etc. Included in the specification mean units for processing at least one function or operation, which may be implemented by hardware, software, or a combination thereof. 
     For convenience in explanation and accurate definition in the appended claims, the terms “upper”, “lower”, “inner”, “outer”, “up”, “down”, “upwards”, “downwards”, “front”, “rear”, “back”, “inside”, “outside”, “inwardly”, “outwardly”, “interior”, “exterior”, “internal”, “external”, “forwards”, and “backwards” are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures. It will be further understood that the term “connect” or its derivatives refer both to direct and indirect connection. 
     The foregoing descriptions of specific exemplary embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described to explain certain principles of the present disclosure and their practical application, to enable others skilled in the art to make and utilize various exemplary embodiments of the present disclosure, as well as various alternatives and modifications thereof. It is intended that the scope of the present disclosure be defined by the Claims appended hereto and their equivalents.