Air conditioning unit and system for vehicle

Abstract

An air conditioning unit for a vehicle, comprising: a first channel having a first inlet and a first outlet, and having a first blower and a heating core in the first channel; a second channel having a second inlet and a second outlet, and having a second blower and a cooling core in the second channel; a bypass channel branching from the second outlet of the second channel and connected to the first inlet of the first channel; and a control door, which is disposed between the bypass channel and the first channel and selectively closes the bypass channel or the first inlet, so that when the bypass channel is closed, the first channel and the second channel are disconnected, and when the first inlet is closed, interior air is introduced through the second inlet and the second outlet, and then discharged to the outside through the first outlet.

Description

Technical Field

[0001] The present disclosure relates to an air conditioning unit and system for a vehicle, which is configured to provide a pleasant temperature environment for passengers by drawing air in the vehicle interior, cooling the air, and then discharging the air back into the vehicle interior. Background Art

[0002] Generally speaking, a vehicle is equipped with an air conditioning unit. The air conditioning unit generally includes a heating core, a cooling core, a blower, etc., and heats or cools the air flowing in the air conditioning unit and then discharges the air to the interior of the vehicle. Therefore, regardless of the external conditions, the passenger can control the interior temperature of the vehicle, thereby being able to provide the passenger with a pleasant temperature environment.

[0003] When a vehicle is parked outdoors for a long time at high temperatures, such as in summer, heat accumulates in the air conditioning unit or the exhaust unit connected to the air conditioning unit. In this case, the temperature of the air conditioning unit or the exhaust unit increases more than the temperature inside the vehicle. Therefore, there is a problem that even if a passenger operates the air conditioning system for cooling, the heat accumulated in the air conditioning unit and the exhaust unit is exhausted toward the passenger in the early stage of operation, thereby deteriorating the pleasant temperature environment.

[0004] Therefore, there is a need for an improved automotive air conditioning unit and system to solve this problem.

[0005] The description of the related art provided above as the present disclosure is only for helping to understand the background of the present disclosure, and should not be construed as being included in the related art known to those skilled in the art. Summary of the invention

[0006] The present disclosure provides an air conditioning unit and system for a vehicle, which is configured to provide a pleasant temperature environment for passengers by introducing air into the interior of the vehicle, cooling the air, and then discharging the air back into the interior of the vehicle.

[0007] According to the present disclosure, an air conditioning unit for a vehicle may include: a first channel having a first inlet connected to the interior or exterior of the vehicle and a first outlet connected to the exterior of the vehicle, and having a first blower and a heating core in the first channel; a second channel having a second inlet connected to the interior of the vehicle and a second outlet connected to the interior of the vehicle, and having a second blower and a cooling core in the second channel; a bypass channel branched from the second outlet of the second channel and connected to the first inlet of the first channel; and a control door, which is arranged between the bypass channel and the first channel and selectively closes the bypass channel or the first inlet, so that when the bypass channel is closed, the first channel and the second channel are disconnected, and when the first inlet is closed, the interior air is introduced through the second inlet and the second outlet, and then discharged to the outside through the first outlet.

[0008] The heating core may be a condenser, the cooling core may be an evaporator, and the heating core and the cooling core may be connected by a refrigerant line having a compressor and an expansion valve.

[0009] Air conditioning units can be mounted on the partitions.

[0010] The air conditioning unit may be mounted on a side of the partition facing the trunk of the vehicle.

[0011] The first inlet of the first passage may be connected to a trunk duct communicating with a trunk of the vehicle, so that air in the trunk may be introduced into the first passage through the trunk duct.

[0012] The first outlet of the first passage may be connected to a wheel housing duct communicating with the wheel housing, so that air in the first passage may be discharged out of the vehicle through the wheel housing duct.

[0013] The second inlet of the second passage may be connected to an introduction duct communicating with the interior of the vehicle, and thus air in the interior of the vehicle may be introduced into the second passage through the introduction duct.

[0014] The second outlet of the second passage may be connected to an exhaust duct communicating with the interior of the vehicle, and thus the air in the second passage may be exhausted into the interior of the vehicle through the exhaust duct.

[0015] The exhaust duct may be in communication with a seat cushion, whereby the air in the second passage may be exhausted to the seat cushion, or the exhaust duct may be in communication with a seat back, whereby the air in the second passage may be exhausted to the seat back, or the exhaust duct may be in communication with a roof vent, whereby the air in the second passage may be exhausted to the roof vent.

[0016] In view of another aspect, an air conditioning unit system according to the present disclosure may include an air conditioning unit, and may also include an integrated controller, which includes a thermal sensor for sensing the internal temperature of the second channel and the internal air temperature of the interior of the vehicle, controls the operation of the refrigerant pipeline, and controls the operation of the first blower, the second blower or the control door.

[0017] In the first mode in which cooled air is discharged to the interior of the vehicle, the integrated controller can control the operation of the refrigerant pipeline, can control the operation of the first blower and the second blower, and can control the control door to close the bypass channel so that the first channel and the second channel are disconnected.

[0018] In the second mode for reducing the internal temperature of the second passage, the integrated controller can control the operation of the first blower and control the control door to close the first inlet so that internal air is introduced through the second inlet and the second outlet and then discharged to the outside through the first outlet.

[0019] The integrated controller may execute the second mode only when the interior temperature of the second passage is higher than the interior temperature of the vehicle by a predetermined temperature or more.

[0020] When the difference between the internal temperature of the second channel and the internal temperature of the interior of the vehicle is less than the predetermined temperature, the integrated controller can control the operation of the refrigerant pipeline, can control the operation of the first blower and the second blower, and can control the control door to close the bypass channel so that the first channel and the second channel are disconnected.

[0021] When the vehicle is started or the air conditioning unit is turned on, the integrated controller may execute the second mode.

[0022] According to the air conditioning unit and system of the present disclosure, it is possible to improve a pleasant temperature environment for passengers by introducing air into the interior of a vehicle, cooling the air, and then discharging the air back into the interior of the vehicle.

[0023] In particular, there is an advantage in that even on a hot and humid day, cooled air can be immediately discharged to the interior of the vehicle by removing heat accumulated in the air conditioning unit or the discharge unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1 is a view showing an air conditioning unit for a vehicle according to an embodiment of the present disclosure;

[0026] Figure 2is a view showing a state when an air conditioning unit according to an embodiment of the present disclosure has been mounted on a partition;

[0027] Figure 3 and Figure 4 is a view showing a first mode and a second mode of an air conditioning system according to another embodiment of the present disclosure;

[0028] Figure 5 is a conceptual diagram of an air conditioning unit according to an embodiment of the present disclosure;

[0029] Figure 6 is a side view showing an air conditioning unit according to an embodiment of the present disclosure;

[0030] Figure 7 is a partial conceptual diagram showing an air conditioning unit according to an embodiment of the present disclosure;

[0031] Figure 8 is a view showing control of an air conditioning system according to another embodiment of the present disclosure; and

[0032] Fig. 9 is a view showing an integrated controller of an air conditioning system according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] It is understood that the term "vehicle" or "vehicle-related" or other similar terms used herein include general motor vehicles, such as passenger cars including sport utility vehicles (SUVs), buses, trucks, various commercial vehicles, watercraft including various ships and boats, and aviation vehicles, etc.; and include hybrid vehicles, electric vehicles, plug-in hybrid vehicles, hydrogen-powered vehicles, and other alternative energy-powered vehicles (e.g., derived from energy other than petroleum). As mentioned herein, a hybrid vehicle is a vehicle having two or more power sources, such as a vehicle that has both gasoline power and electric power.

[0034] The terms used herein are only used to describe the purpose of specific embodiments, and are not intended to limit the present disclosure. As used herein, the singular forms "one", "an" and "the" are intended to also include plural forms, unless otherwise clearly indicated in the text. It can also be understood that the terms "including" and / or "comprising" when used in this specification represent the existence of stated features, wholes, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, parts and / or their groups. As used in this article, the term "and / or" includes any and all combinations of one or more related listed items. Throughout the specification, unless the opposite is clearly described, the word "including" and its variations (such as "including" or "containing") will be understood to mean including the elements stated, but do not exclude any other elements. In addition, the terms "unit", "part", "piece" and "module" described in this specification mean a unit for processing at least one function and operation, and can be implemented by hardware components or software components and combinations thereof.

[0035] In addition, the control logic of the present disclosure may be implemented as a non-transitory computer readable medium on a computer readable medium including executable program instructions executed by a processor, controller, etc. Examples of computer readable media include, but are not limited to, ROM, RAM, compact disk (CD)-ROM, magnetic tape, floppy disk, flash memory, smart card, and optical data storage device. The computer readable medium may also be distributed in a networked computer system so that the computer readable medium is stored and executed in a distributed manner, for example, by a telematics server or a controller area network (CAN).

[0036] Figure 1 is a view showing an air conditioning unit for a vehicle according to an embodiment of the present disclosure, Figure 2 is a view showing a state when the air conditioning unit according to the embodiment of the present disclosure has been mounted on the partition plate, Figure 3 and Figure 4 2 is a diagram showing a first mode and a second mode of an air conditioning system according to another embodiment of the present disclosure, Figure 5 is a conceptual diagram of an air conditioning unit according to an embodiment of the present disclosure, Figure 6 is a side view showing an air conditioning unit according to an embodiment of the present disclosure, Figure 7 is a partial conceptual diagram showing an air conditioning unit according to an embodiment of the present disclosure, Figure 8 is a view showing control of an air conditioning system according to another embodiment of the present disclosure, and Fig. 9 is a view showing an integrated controller of an air conditioning system according to another embodiment of the present disclosure.

[0037] According to the related art automobile air conditioning unit, when the vehicle is parked outdoors for a long time at high temperature (for example, in summer), heat is accumulated in the air conditioning unit or the exhaust unit connected to the air conditioning unit to exhaust air, and the heat travels through the air conditioning unit to the interior of the vehicle. Therefore, there is a problem that even if the passenger uses the cooling function, the heat accumulated in the air conditioning unit and the exhaust unit is exhausted toward the passenger in the early stage of operation, so that the pleasant temperature environment is deteriorated.

[0038] like Figures 1 to 4 As shown, an air conditioning unit 1 for a vehicle according to the present disclosure includes: a first channel 10 having a first inlet 12 connected to the interior or exterior of the vehicle and a first outlet 14 connected to the exterior of the vehicle, and having a first blower B1 and a heating core H in the first channel; a second channel 20 having a second inlet 22 connected to the interior of the vehicle and a second outlet 24 connected to the interior of the vehicle, and having a second blower B2 and a cooling core C in the second channel; a bypass channel 30 branched from the second outlet 24 of the second channel 20 and connected to the first inlet 12 of the first channel 10; and a control door 40 disposed between the bypass channel 30 and the first channel 10 to selectively close the bypass channel 30 or the first inlet 12, so that the first channel 10 and the second channel 20 are disconnected when the bypass channel 30 is closed, and when the first inlet 12 is closed, the interior air is introduced through the second inlet 22 and the second outlet 24, and then the interior air is discharged to the outside through the first outlet 14.

[0039] Here, the first passage 10 is described. The first blower B1 and the heater core H are disposed in the first passage 10. Figure 3 When the first blower B1 rotates, air inside and outside the vehicle is introduced into the heating core H through the first inlet 12. The air that has traveled through the heating core H is discharged out of the vehicle through the first outlet 14. Figure 3 The air introduced through the path G1 is discharged out of the vehicle.

[0040] Further, the second passage 20 is described herein. The second blower B2 and the cooling core C are disposed in the second passage 20. Figure 3 When the second blower rotates, the air in the vehicle is introduced into the cooling core C through the second inlet 22. The air that has traveled through the cooling core C is discharged into the vehicle through the second outlet 24. Figure 3 The air introduced through the path G2 is discharged into the vehicle.

[0041] Further, the bypass passage 30 is described herein. The bypass passage 30 branches from the second outlet 24 of the second passage 20 and is connected to the first inlet 12 of the first passage 10.

[0042] Further, the control door 40 is described herein. The control door 40 is disposed between the bypass channel 30 and the first channel 10 and selectively closes the bypass channel 30 or the first inlet 12. When the control door 40 closes the bypass channel 30, as shown in FIG. Figure 3 As shown, the first passage 10 and the second passage 20 are disconnected. In this case, as described above, when the first blower B1 and the second blower B2 rotate, the air moves along the paths G1 and G2. When the control door 40 closes the first inlet 12, as shown in FIG. Figure 4 As shown, the bypass passage 30 is open and the first passage 10 and the second passage 20 are connected. Therefore, when the control door 40 closes the first inlet 12, as shown in FIG. Figure 4 As shown, the interior air of the vehicle is introduced through the second inlet 22 and the second outlet 24, and then discharged to the outside through the first outlet 14 by the operation of the first blower B1. Therefore, since the interior air introduced through the second inlet 22 and the second outlet 24 is discharged to the outside through the first outlet 14, there is an advantage that the heat accumulated in the second passage 20 is discharged out of the vehicle even in summer, etc. Thereafter, when the cooling function is used after the heat accumulated in the second passage 20 is discharged, the cooled air is discharged to the interior of the vehicle, so there is an advantage of improving the provision of a pleasant temperature environment for passengers. Figure 4 As shown, the air moves along paths G3 and G4, whereby the heat accumulated in the second passage 20 is discharged out of the vehicle.

[0043] On the other hand, in the present disclosure, if Figure 5 As shown, the heating core H is a condenser, the cooling core C is an evaporator, and the heating core H and the cooling core C can be connected by a refrigerant pipeline having a compressor E and an expansion valve V. The refrigerant circulates through the refrigerant pipeline in the cooling cycle. The compressor puts the refrigerant in a high-temperature and high-pressure gaseous state and transports it to the condenser, and the condenser liquefies the high-temperature and high-pressure refrigerant transmitted from the compressor by forcibly cooling the refrigerant using the air passing through the first channel. Thereafter, the liquid refrigerant that has passed through the condenser is rapidly expanded through the expansion valve, thereby transporting the low-temperature and low-pressure refrigerant to the evaporator. The refrigerant in the evaporator exchanges heat with the air passing through the second channel, so the air passing through the second channel is cooled. The refrigerant is sucked back into the compressor from the evaporator and this process is repeatedly circulated, thereby performing continuous cooling.

[0044] On the other hand, Figure 6 and Figure 7 As shown, the air conditioning unit 1 of the present disclosure may be mounted on the partition P. In particular, the air conditioning unit 1 may be mounted on a side of the partition P facing the trunk T of the vehicle.

[0045] The partition P is a partition wall of the vehicle body, which separates the interior Y of the vehicle and the trunk T of the vehicle. The air conditioning unit 1 of the present disclosure is mounted on the partition P, whereby a separate air conditioning unit is provided for passengers in the rear seats of the vehicle. In addition, since the air conditioning unit 1 is mounted on the side of the partition P facing the trunk T of the vehicle, the interior Y of the vehicle can be ensured to the greatest extent. That is, there is an advantage of providing a separate air conditioning unit for the rear seats of the vehicle and ensuring the interior Y of the vehicle to the greatest extent.

[0046] On the other hand, Figure 6 and Figure 7 As shown, the first inlet 12 of the first passage 10 is connected to a trunk duct TD communicating with a trunk T of the vehicle, so the air in the trunk T can be introduced into the first passage 10 through the trunk duct TD. In addition, the first outlet 14 of the first passage 10 is connected to a wheel housing duct HD communicating with a wheel housing H, so the air in the first passage 10 can be discharged out of the vehicle through the wheel housing duct HD.

[0047] In this case, the air in the trunk T flows along Figure 7 The path A1 shown is introduced into the first passage 10 through the trunk duct TD. In addition, the air in the first passage 10 whose temperature is increased by the heating core H goes along Figure 7 The path A2 shown in FIG. 1 is discharged out of the vehicle through the wheel housing duct HD. Since the air with increased temperature is discharged out of the vehicle, heat is not accumulated in the interior of the vehicle. Alternatively, the first inlet 12 of the first passage 10 may allow air outside the vehicle to be introduced into the first passage 10 through a duct (not shown) communicating with the wheel housing H.

[0048] On the other hand, Figure 5 and Figure 7 As shown, the second inlet 22 of the second passage 20 is connected to the introduction pipe YD communicating with the interior Y of the vehicle, so the air in the interior of the vehicle can be introduced into the second passage 20 through the introduction pipe YD. In addition, the second outlet 24 of the second passage 20 is connected to the exhaust pipe SD communicating with the interior Y of the vehicle, so the air in the second passage 20 can be discharged into the interior Y of the vehicle through the exhaust pipe SD.

[0049] In this case, the air in the interior Y of the vehicle flows along Figure 7 The path D1 shown is introduced into the second passage 20 through the introduction pipe YD. In addition, the air cooled by the cooling core in the second passage 20 is guided along Figure 7The paths D2 and D3 shown in FIG. 1 are introduced into the interior Y of the vehicle through the exhaust pipe SD. As described above, the air introduced into the interior Y of the vehicle is exhausted back to the interior Y of the vehicle, whereby the air in the interior Y of the vehicle is recirculated. Therefore, there is an advantage of improving cooling efficiency.

[0050] In particular, if Figure 6 As shown, the exhaust duct SD is connected to the seat cushion S1, whereby the air in the second passage 20 can be discharged to the seat cushion S1; or the exhaust duct SD is connected to the seat back S2, whereby the air in the second passage 20 can be discharged to the seat back S2; or the exhaust duct SD is connected to the roof vent R, whereby the air in the second passage 20 can be discharged to the roof vent R. Figure 7 , the path D2 means that the cooled air is discharged to the seat pad S1 and the seat back S2 , and the path D3 means that the cooled air is discharged to the roof vent R.

[0051] As described above, since the cooled air is discharged to the seat pad S1 or the seat back S2, the heat accumulated between the passenger and the seat pad S1 or the seat back S2 when the passenger sits on the seat can be eliminated. Therefore, there is an advantage of increasing the provision of a pleasant temperature environment for the passenger. The roof vent R is provided on the pillar or the ceiling, so the cooled air is discharged to the passenger from the upper part in the interior Y of the vehicle. Therefore, the cooled air is sprayed toward the face or upper body of the passenger, so there is an advantage of increasing the provision of a pleasant temperature environment for the passenger.

[0052] In addition, if Figure 3 , Figure 4 , Figure 8 and Fig. 9 As shown, the air conditioning system according to the present disclosure includes an air conditioning unit, and further includes an integrated controller 50. The integrated controller 50 includes a thermal sensor for sensing the internal temperature of the second passage 20 and the internal air temperature of the interior Y of the vehicle body, can control the operation of the refrigerant pipeline, and can control the operation of the first blower B1, the second blower B2 or the control door 40.

[0053] The integrated controller 50 includes a thermal sensor. The thermal sensor senses the internal temperature of the second channel 20 and the internal air temperature of the interior Y of the vehicle. The thermal sensor is a concept including a contact type and a non-contact type. The contact type measures the temperature by making the thermal sensor directly contact the measurement target, while the non-contact type measures the heat radiated from the measurement target. Information about the internal temperature of the second channel 20 and the internal air temperature of the interior Y of the vehicle measured in this way is transmitted to the integrated controller 50. At the same time, the integrated controller 50 can control the operation of the refrigerant pipeline, and can control the operation of the first blower B1, the second blower B2 or the control door 40.

[0054] In more detail, in the first mode (step S120) in which the cooled air is discharged to the interior Y of the vehicle, the integrated controller 50 can control the operation of the refrigerant pipeline, can control the operation of the first blower B1 and the second blower B2, and can control the control door 40 to close the bypass channel 30, so that the first channel 10 and the second channel 20 are disconnected.

[0055] refer to Figure 3 , Figure 5 and Fig. 9 , the integrated controller 50 operates the heating core H and the cooling core C by operating the refrigerant pipeline, and operates the control door 40 to disconnect the first channel 10 and the second channel 20 by closing the bypass channel 30. In addition, the first blower B1 is operated, whereby the air inside or outside the vehicle is introduced into the first channel 10 through the first inlet 12. The air introduced into the first channel 10 increases in temperature by exchanging heat with the refrigerant in the heating core H while traveling through the heating core H. The air with increased temperature is discharged out of the vehicle through the first outlet 14 of the first channel 10. In this case, the air moves along the path G1 in the first channel 10. In addition, the second blower B2 is operated, whereby the air in the vehicle is introduced into the second channel 20 through the second inlet 22 of the second channel 20. The air introduced into the second channel 20 is cooled by exchanging heat with the refrigerant in the cooling core C while traveling through the cooling core C. The cooled air is discharged into the interior Y of the vehicle through the second outlet 24 of the second channel 20. In this case, the air moves along the path G2 in the second channel 20.

[0056] In addition, in the second mode (step S140) for reducing the internal temperature of the passage 20, the integrated controller 50 can control the operation of the first blower B1, and can control the control door 40 to close the first inlet 12 so that internal air is introduced through the second inlet 22 and the second outlet 24, and then discharged to the outside through the first outlet 14.

[0057] refer to Figure 4 , Figure 5 and Fig. 9 , the control door 40 opens the bypass passage 30 by closing the first inlet 12. Therefore, the first passage 10 and the second passage 20 are connected through the bypass passage 30. In addition, the first blower B1 rotates, thereby introducing the inside air through the second inlet 22 and the second outlet 24. Figure 3In this case, the interior air introduced through the second inlet 22 is discharged out of the vehicle along the path G3, and the interior air introduced through the second outlet 24 is discharged out of the vehicle along the path G4. Therefore, the heat accumulated in the second passage 20 is discharged out of the vehicle along the paths G3 and G4. In addition, in this case, the heat in the discharge pipe SD connected to the second outlet 24 is also discharged. Therefore, there is an advantage that when the second mode (step S140) is executed and then the first mode S120 is executed again, since the heat accumulated in the second passage 20 has been discharged, the cooled air can be immediately discharged to the interior Y of the vehicle.

[0058] In addition, the integrated controller 50 can execute the second mode (step S140) only when the internal temperature of the second channel 20 is higher than the internal temperature of the interior Y of the vehicle by a predetermined temperature (N°C) or more; and when the difference between the internal temperature of the second channel 20 and the internal temperature of the interior Y of the vehicle is less than the predetermined temperature (N°C) (step S100), the integrated controller 50 can execute the first mode (step S120).

[0059] The integrated controller 50 may execute the second mode (step S140) only when the internal temperature of the second passage 20 is higher than the internal temperature of the interior Y of the vehicle by a predetermined temperature (N°C) or more. In this case, the internal temperature of the second passage 20 and the internal temperature of the interior Y of the vehicle are measured by the thermal sensor. Figure 8 In step S100, ΔT is the internal temperature of the second channel 20 minus the internal temperature of the interior of the vehicle, and N°C is a predetermined temperature. Therefore, when ΔT≥N°C (step S100), the second mode (step S140) is executed. If the difference between the internal temperature of the second channel 20 and the internal temperature of the interior Y of the vehicle is not large, even if the first mode (step S120) is executed immediately, the passengers will not feel much unpleasantness in the early stage of operation. Therefore, the second mode (S140) is executed only when the internal temperature of the second channel 20 is higher than the internal temperature of the interior Y of the vehicle by a predetermined temperature (N°C) or more. The predetermined temperature (N°C) may depend on the design of the air conditioning unit and the internal structure of the vehicle.

[0060] refer to Figure 8, when the difference between the internal temperature of the second channel 20 and the internal temperature of the interior Y of the vehicle becomes less than the predetermined temperature (step S100) after executing the second mode (step S140), the integrated controller 50 can control the operation of the refrigerant pipeline, can control the operation of the first blower B1 and the second blower B2, and can control the control door 40 to close the bypass channel 30, so that the first channel 10 and the second channel 20 are disconnected (step S200). As described above, when the difference between the internal temperature of the second channel 20 and the internal temperature of the interior Y of the vehicle becomes less than the predetermined temperature after executing the second mode (step S140), the first mode (step S120) is executed. If the internal temperature of the second channel 20 is greater than the internal temperature of the interior Y of the vehicle by the predetermined temperature (N°C) or more even after executing the second mode (step S140), the second mode (step S140) continues to be executed. Figure 8 In step S200, ΔT is equal to the internal temperature of the second passage minus the internal temperature of the interior of the vehicle, and N°C is equal to the predetermined temperature. The predetermined temperature (N°C) may depend on the design of the air conditioning unit and the internal structure of the vehicle.

[0061] In addition, when the vehicle is started or the air conditioning unit is turned on, the integrated controller 50 of the air conditioning system of the present disclosure can execute the second mode (step S140). When the vehicle is started or the air conditioning unit is turned on, the second mode (step S140) is immediately executed, thereby having the advantage that the cooled air can be discharged immediately when the passenger executes the first mode (step S120).

[0062] According to the air conditioning unit and system of the present disclosure, it is possible to improve the provision of a pleasant temperature environment for passengers by introducing air into the interior of a vehicle, cooling the air, and then discharging the air back into the interior of the vehicle.

[0063] In particular, there is an advantage in that even on a hot and humid day, cooled air can be immediately discharged to the interior of the vehicle by removing heat accumulated in the air conditioning unit or the discharge unit.

[0064] Although the present disclosure is provided above in conjunction with the specific embodiments shown in the accompanying drawings, it is obvious that those skilled in the art may change and modify the present disclosure in various ways without departing from the scope of the present disclosure described in the claims.

Claims

1. An air conditioning unit for a vehicle, the air conditioning unit include: a first passage having a first inlet connected to the interior or exterior of the vehicle and a first outlet connected to the exterior of the vehicle, and having a first blower and a heater core in the first passage; a second passage having a second inlet connected to the interior of the vehicle and a second outlet connected to the interior of the vehicle, and having a second blower and a cooling core in the second passage; a bypass channel branched from the second outlet of the second channel and connected to the first inlet of the first channel; as well as a control door disposed between the bypass passage and the first passage, and the control door selectively closes the bypass passage or the first inlet, so that when the bypass passage is closed, the first passage and the second passage are disconnected, and when the first inlet is closed, internal air is introduced through the second inlet and the second outlet and then discharged to the outside through the first outlet, wherein the air conditioning unit is mounted on a partition, the air conditioning unit is mounted on a side of the partition facing the trunk of the vehicle, and wherein the first inlet of the first channel is connected to a trunk duct connected to the trunk of the vehicle, so that the air in the trunk is introduced into the first channel through the trunk duct.

2. The air conditioning unit according to claim 1, in, The heating core is a condenser, the cooling core is an evaporator, and the heating core and the cooling core are connected through a refrigerant line having a compressor and an expansion valve.

3. The air conditioning unit according to claim 1, in, The first outlet of the first passage is connected to a wheel housing duct communicating with a wheel housing, so that air in the first passage is discharged out of the vehicle through the wheel housing duct.

4. The air conditioning unit according to claim 1, in, The second inlet of the second passage is connected to an introduction duct communicating with the interior of the vehicle, so air in the interior of the vehicle is introduced into the second passage through the introduction duct.

5. The air conditioning unit according to claim 1, in, The second outlet of the second passage is connected to an exhaust duct communicating with the interior of the vehicle, so that air in the second passage is exhausted into the interior of the vehicle through the exhaust duct.

6. The air conditioning unit according to claim 5, in, The discharge duct is connected to a seat cushion, whereby the air in the second passage is discharged to the seat cushion, or the discharge duct is connected to a seat back, whereby the air in the second passage is discharged to the seat back, or the discharge duct is connected to a roof vent, whereby the air in the second passage is discharged to the roof vent.

7. An air conditioning system including the air conditioning unit according to claim 2, further comprising an integrated controller, the integrated controller including a thermal sensor that senses the internal temperature of the second channel and the internal air temperature of the interior of the vehicle, the integrated controller controlling the operation of the refrigerant pipeline and controlling the operation of the first blower, the second blower or the control door.

8. The air conditioning system according to claim 7, in, In a first mode in which cooled air is discharged to the interior of the vehicle, the integrated controller controls the operation of the refrigerant line, controls the operation of the first blower and the second blower, and controls the control door to close the bypass passage so that the first passage and the second passage are disconnected.

9. The air conditioning system according to claim 7, in, In a second mode for reducing the internal temperature of the second channel, the integrated controller controls the operation of the first blower and controls the control door to close the first inlet, so that internal air is introduced through the second inlet and the second outlet and then discharged to the outside through the first outlet.

10. The air conditioning system according to claim 9, in, The integrated controller executes the second mode only when an interior temperature of the second passage is higher than an interior temperature of the interior of the vehicle by a predetermined temperature or more.

11. The air conditioning system according to claim 10, in, When the difference between the internal temperature of the second passage and the internal temperature of the interior of the vehicle is less than the predetermined temperature, the integrated controller controls the operation of the refrigerant pipeline, controls the operation of the first blower and the second blower, and controls the control door to close the bypass passage so that the first passage and the second passage are disconnected.

12. The air conditioning system according to claim 9, in, When the vehicle is started or the air conditioning unit is turned on, the integrated controller executes the second mode.

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