KR20220079278A - Air conditioning system with dual HVAC heat exchanger for vehicle - Google Patents

Abstract

The present invention relates to an air conditioning system for a vehicle, which generates cooling water and heating water through heat exchange between a refrigerant circulating in a primary circuit equipped with a condenser and an evaporator and coolant circulating in a secondary circuit, thereby generating dual To provide an air conditioning system for a vehicle having a dual HVAC heat exchanger that can realize cooling and heating of the vehicle interior at the same time and efficiently control cooling and heating temperatures by supplying it as a type heat exchanger. A vehicle air conditioning system having a dual HVAC heat exchanger according to the present invention includes: a primary circulation system in which a refrigerant circulates through a condenser and an evaporator; a secondary circulation system having a heating circulation system in which heating water is generated and circulated through heat exchange with a refrigerant in the condenser, and a cooling circulation system in which cooling water is generated and circulated through heat exchange with a refrigerant in the evaporator; The interior is divided into a first region and a second region, and the heating water generated in the heating circulation system and the cooling water generated in the cooling circulation system are simultaneously or selectively supplied to the first region and the second region to exchange heat with air. HVAC module equipped with two or more heat exchangers for generating heating air and cooling air through It is installed in the heating circulation system and the cooling circulation system, respectively, and opening and closing is controlled through a control unit to simultaneously or selectively supply heating water and cooling water to the first region and the second region of each heat exchanger provided in the HVAC module. It characterized in that it includes; a plurality of control valves of the three-way valve type.

Description

Air conditioning system with dual HVAC heat exchanger for vehicle

The present invention relates to an air conditioning system for a vehicle, and more particularly, to an HVAC module by generating cooling water and heating water through heat exchange of a refrigerant circulating in a primary circuit equipped with a condenser and an evaporator and cooling water circulating in a secondary circuit, respectively. It relates to an air conditioning system for a vehicle having a dual HVAC heat exchanger capable of simultaneously implementing cooling and heating of a vehicle interior and efficiently controlling cooling and heating temperatures by supplying it to a dual-type heat exchanger provided inside.

As is well known, in a vehicle, an air conditioner for a vehicle for adjusting the air temperature inside the vehicle is provided. Vehicle air conditioners generate heat in winter to keep the interior warm, and generate cold air in summer to keep the interior cool. Such an air conditioner for a vehicle tends to be miniaturized in response to consumer demand in order to efficiently use the interior space of the vehicle.

In a vehicle air conditioner, a compressor, a condenser, an expansion valve, and an evaporator are sequentially connected by a refrigerant pipe, and the refrigerant circulates while the compressor is driven by the power of the engine.

In this vehicle air conditioner, the refrigerant gas compressed at high temperature and high pressure in the compressor passes through the condenser and exchanges heat with the surrounding air to convert it into a liquid refrigerant, and the liquefied refrigerant passes through a receiver dryer connected to the condenser to remove impurities. The refrigerant from which impurities have been removed is converted into a low-temperature gas as it passes through the expansion valve. The vaporized low-temperature refrigerant passes through the evaporator and is cooled while exchanging heat with the surrounding air. This cooled air is discharged into the vehicle interior by the blower, and the low-temperature gaseous refrigerant that has passed through the evaporator is sent back to the compressor to provide high-temperature and high-pressure cycle through the compression process.

On the other hand, recently, electric vehicles using electric energy as a power source have been released. The air conditioner mounted on the electric vehicle is configured to heat water or air through power supplied from a battery to heat the interior of the vehicle. There is a disadvantage in that the power performance of the vehicle is significantly reduced.

Accordingly, a heat pump system is applied to the air conditioning system of an electric vehicle similar to that of a conventional internal combustion engine vehicle, and this heat pump system reversibly applies a cycle consisting of compression-condensation-reduction-evaporation of refrigerant to cool and heat It is a combined heating and cooling system.

That is, the heat pump system has a cycle in which the liquid refrigerant evaporates in the evaporator, takes heat from the surroundings, becomes gas, and then liquefies while releasing heat to the surroundings by the condenser. There is an advantage in that it is possible to secure a heat source insufficient in the conventional general air conditioner.

In conventional vehicle air conditioners to which such a heat pump system is applied, a part of the refrigerant circuit is usually piped to the evaporator provided inside the HVAC module located inside the vehicle. to get

However, in the conventional air conditioner for a vehicle as described above, refrigerant leakage may occur in a portion piped into the vehicle interior due to poor assembly of the HVAC module or a physical impact during a vehicle accident. In this case, when the refrigerant has toxic or combustible properties, the refrigerant leaked from the refrigerant pipe is leaked into the vehicle interior, thereby causing a problem in the safety of the occupants. For this reason, in order to prevent safety problems of passengers due to leakage of refrigerant, it was necessary to use an expensive refrigerant that is hardly toxic or flammable in the past, which ultimately leads to a problem of greatly increasing the production and maintenance costs of the vehicle.

Republic of Korea Patent Registration No. 10-2039170 (2019.10.25)

The present invention has been devised to solve the conventional problems as described above, and the technical problem to be solved in the present invention is to provide heating and cooling water generated through heat exchange between refrigerant and cooling water without installing a refrigerant pipe into the vehicle interior. By implementing an indirect cooling and heating air conditioning system that performs cooling and heating of the interior of the vehicle using An object of the present invention is to provide an air conditioning system for a vehicle having a dual HVAC heat exchanger that can greatly reduce vehicle maintenance costs by expanding the selection of refrigerants up to grade level.

Another technical problem to be solved in the present invention is to generate heating water and cooling water through heat exchange between the refrigerant circulating in the primary circuit and the cooling water circulating in the secondary circuit, and supplying each to the dual heat exchanger provided in the HVAC module. To provide an air conditioning system for a vehicle having a dual HVAC heat exchanger that can provide heating air and cooling air for each area of the vehicle interior at the same time through heat exchange with air, and can effectively control the temperature of cooling and heating air. have.

A vehicle air conditioning system having a dual HVAC heat exchanger according to the present invention for solving the above technical problem includes: a primary circulation system in which a refrigerant is circulated through a condenser and an evaporator; a secondary circulation system having a heating circulation system in which heating water is generated and circulated through heat exchange with a refrigerant in the condenser, and a cooling circulation system in which cooling water is generated and circulated through heat exchange with a refrigerant in the evaporator; The interior is divided into a first region and a second region, and the heating water generated in the heating circulation system and the cooling water generated in the cooling circulation system are simultaneously or selectively supplied to the first region and the second region to exchange heat with air. HVAC module equipped with two or more heat exchangers for generating heating air and cooling air through It is installed in the heating circulation system and the cooling circulation system, respectively, and opening and closing is controlled through a control unit to simultaneously or selectively supply heating water and cooling water to the first region and the second region of each heat exchanger provided in the HVAC module. It characterized in that it includes; a plurality of control valves of the three-way valve type.

Here, in the HVAC module, two different first and second heat exchangers partitioned into a first area and a second area are provided, wherein the second heat exchanger has a larger heat exchange capacity than the first heat exchanger, and the HVAC It may be configured to be disposed at a position relatively close to the blower side provided in the module.

In this case, the heating circulatory system and the cooling circulatory system are respectively connected to the vehicle electric part and the battery part, so that heating or cooling of the electric part and the battery part may be selectively performed according to the opening/closing operation of the control valve by the controller.

And, the control valve installed in the heating circulation system, the heating water generated through heat exchange in the condenser is controlled to be simultaneously or selectively supplied to the first heat exchanger and the second heat exchanger inside the HVAC module, and to the radiator side of the vehicle a first valve; a second valve controlled so that the heating water passing through the first valve is selectively supplied to the first heat exchanger and the second heat exchanger, and to the battery unit; and a plurality of third valves controlled so that the heating water passing through the second valve is simultaneously or selectively supplied to the first heat exchanger and the second heat exchanger.

In this case, the third valve may include: a 3-1 valve controlled to selectively supply the heating water that has passed through the second valve to the second heat exchanger; and a 3-2 valve controlled to selectively supply the heating water that has passed through the 3-1 valve to the first heat exchanger.

In addition, a plurality of fourth valves that are controlled to selectively move the heating water and cooling water discharged after heat exchange with air in the first heat exchanger and the second heat exchanger toward the condenser and the evaporator may be further installed. .

In this case, the fourth valve may include: a 4-1 valve controlled to selectively move the heating water or cooling water discharged after heat exchange with air in the first heat exchanger toward the condenser or evaporator; and a 4-2 valve that is controlled to selectively move the heating water or cooling water discharged after heat exchange with air in the second heat exchanger toward the condenser or evaporator.

In addition, a plurality of fifth valves that are controlled to simultaneously or selectively supply cooling water generated after heat exchange with the refrigerant in the evaporator to the first heat exchanger and the second heat exchanger may be further installed.

In this case, the fifth valve includes: a 5-1 valve controlled to selectively supply cooling water generated after heat exchange with the refrigerant in the evaporator to the second heat exchanger; and a 5-2 valve controlled to selectively supply the cooling water that has passed through the 5-1 valve to the first heat exchanger.

On the other hand, the control valve installed in the cooling circulation system is controlled so that the cooling water generated through heat exchange in the evaporator is simultaneously or selectively supplied to the first heat exchanger and the second heat exchanger inside the HVAC module, and to the radiator side of the vehicle. 6th valve; and a seventh valve controlled to selectively supply the cooling water that has passed through the sixth valve to the first and second heat exchangers, and to the battery unit.

And, in the simultaneous discharge mode of cooling and heating air by the second heat exchanger, the high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system passes through the first valve, the second valve, and the 3-1 valve. After being introduced into any one of the first and second regions of the second heat exchanger, it is exchanged with air, and the heating water discharged after the heat exchange is circulated again into the condenser through the 4-2 valve. The low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system passes through the 6th valve, the 7th valve, and the 5-1 valve in the first area and the second area of the second heat exchanger. It may be controlled such that the cooling water discharged after the heat exchange is exchanged with the air after flowing into the other part of the battery unit and the cooling water discharged after heat exchange in the battery unit, so that the cooling water flowing into the evaporator is circulated.

In addition, in the simultaneous discharge mode of cooling and heating air by the first heat exchanger, the high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system includes the first valve, the second valve, the 3-1 valve, and the second valve. After flowing into any one of the first and second regions of the first heat exchanger via the 3-2 valve, it is exchanged with air, and the heating water discharged after the heat exchange is combined with the heating water discharged after heat exchange in the electric part. Controlled so that the heating water that joins and flows back into the condenser is circulated, and the low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system is the 6th valve, the 7th valve, the 5-1 valve, and the 5th valve -After being introduced into the other one of the first and second regions of the first heat exchanger via the -2 valve, it exchanges heat with air, and the cooling water discharged after the heat exchange passes through the 4-1 valve to the battery unit It may be controlled to circulate the cooling water that joins with the cooling water discharged after heat exchange in the evaporator and flows into the evaporator.

In addition, in the maximum heating mode by the first heat exchanger and the second heat exchanger, the high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system passes through the first and second valves to the 3-1 valve is introduced into any one of the first region and the second region of the second heat exchanger through After the heat exchange, the heating water discharged from the second heat exchanger flows back into the condenser through the 4-2 valve, and the heating water discharged from the first heat exchanger passes through the 4-1 valve and another path, respectively. Controlled to circulate the heating water that joins and flows into the condenser after being moved, and the low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system is separated from the 6th valve, and some cooling water is supplied to the 7th It flows into the battery unit through a valve to exchange heat, and after heat exchange, the cooling water discharged from the battery unit flows back into the evaporator, and another part of cooling water separated from the sixth valve passes through the radiator and is heated with outside air. After heat exchange, the cooling water may be controlled so that the cooling water flows back to the evaporator after heat exchange by moving to the electric part.

In addition, in the maximum cooling mode by the first heat exchanger and the second heat exchanger, the high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system goes through the first valve through the radiator and the electric part and goes back to the condenser. It is controlled to circulate the incoming heating water, and the low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system is separated from the 7th valve via the 6th valve, and the separated part of the cooling water is The first region and the second region of the second heat exchanger and the first region or the second region of the first heat exchanger respectively flow through the 5-1 valve and the 5-2 valve into any one of the first and second regions to exchange heat with air. After cooling, the cooling water discharged from the first heat exchanger passes through the 4-1 valve, and the cooling water discharged from the second heat exchanger joins through the 4-2 valve and is then separated from the 7th valve. It can be controlled to circulate the cooling water that flows into the battery unit, joins with another cooling water discharged after heat exchange, and then flows back into the evaporator.

In addition, in the dehumidification mode by the first heat exchanger and the second heat exchanger, the high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system is removed through the first valve, the second valve, and the 3-1 valve. After being separated into two paths in the 3-2 valve part, the heating water discharged from the first heat exchanger after being introduced into the first region and the second region of the first heat exchanger to exchange heat with air, after the heat exchange, is the fourth- After moving through the path including valve 1, it is controlled to circulate the heating water flowing back into the condenser after it merges with the heating water that has passed through the radiator and the electric unit, and is generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system The cooled low-temperature cooling water is separated into two paths at the 7th valve via the 6th valve, and a part of the separated cooling water passes through the 5-1 valve and the 5-2 valve to the first of the second heat exchanger. The cooling water discharged from the second heat exchanger after being introduced into the region and the second region to exchange heat with air is separated from the seventh valve and introduced into the battery unit and then heat exchanged after being merged through the 4-2 valve. After it merges with another cooling water discharged later, the circulation of cooling water flowing back into the evaporator may be controlled.

According to the vehicle air conditioning system of the present invention having the above configuration, cooling water and heating water are simultaneously flowed to a plurality of water-cooled heat exchangers installed inside the HVAC module, respectively, to generate cooling and heating air through heat exchange with the air, respectively, in the interior of the vehicle. It has the advantage of being able to simultaneously or selectively provide cooling and heating air at different temperatures for each area. Accordingly, different temperature environments for each left and right areas of the vehicle interior can be controlled without separately developing numerous control valves installed in the air conditioning system circuit for temperature control and complex valve control logic to control the control valves as in the past. It is possible to provide this, and it has the advantage of providing a more comfortable cooling and heating sensation to the occupants.

And, unlike the existing direct air conditioning system in which a part of the refrigerant circuit is piped to the evaporator located inside the vehicle and provides cooling air to the vehicle interior through heat exchange between the refrigerant of the evaporator and the air inside the HVAC module, the present invention provides a vehicle A primary refrigerant circuit composed of a compressor, a condenser, an expansion valve, and an evaporator is configured in a space isolated from the room, and cooling water and heating water are exchanged between the refrigerant flowing through the primary refrigerant circuit and the cooling water circulating in the secondary circulation system. As it is composed of an indirect cooling and heating air conditioning system that provides cooling air and heating air to the interior of the vehicle by generating heat and exchanging heat with air and water through a plurality of heat exchangers provided inside the HVAC module, HVAC It is possible to solve the safety problem of occupants caused by leakage of toxic or flammable refrigerant into the piping part located inside the vehicle due to a module assembly defect or a vehicle accident. In addition, the air conditioning system of the present invention ensures the safety of occupants and uses expensive refrigerant because there is no possibility of refrigerant leaking into the vehicle interior even if a cheap refrigerant such as R290 propane gas having an acceptable level of toxicity or flammability is applied. There is an advantage that can reduce the maintenance cost of the vehicle.

In addition, in the present invention, the refrigerant pipe is not installed directly into the vehicle interior, and an indirect cooling and heating method using coolant that is secondarily heat-exchanged with the refrigerant is applied. In addition, there is an advantage that the vehicle maintenance cost can be significantly reduced because the selection of refrigerants can be expanded up to the combustible grade in order to improve the heat transfer performance with the outside air.

In particular, the present invention applies an indirect air conditioning system that cools and heats the interior of the vehicle through a water-cooling method in which a refrigerant pipe is not installed directly into the interior of the vehicle and secondary heat exchange with the refrigerant is applied. It has the advantage of not causing any leakage of refrigerant into the vehicle interior, and in addition, the selection of refrigerants can be expanded up to flammable grades to improve heat transfer performance with external air, which can significantly reduce vehicle maintenance costs. There are advantages.

1 is a block diagram showing the configuration of an air conditioning system for a vehicle having a dual HVAC heat exchanger according to the present invention.
2 is an exemplary view illustrating a first simultaneous discharge mode in which heated and cooled air is simultaneously discharged through a second heat exchanger installed in the HVAC module.
3 is an exemplary view illustrating a second simultaneous discharge mode in which heated and cooled air is simultaneously discharged through the first heat exchanger installed in the HVAC module.
4 is an exemplary view illustrating a maximum heating mode in which cooled air is discharged through a first heat exchanger and a second heat exchanger installed in the HVAC module.
5 is an exemplary view illustrating a maximum cooling mode in which heated air is discharged through a first heat exchanger and a second heat exchanger installed in the HVAC module.
6 is an exemplary view illustrating a dehumidification mode in which heated and cooled air is discharged after mixing through the first heat exchanger and the second heat exchanger installed in the HVAC module.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention.

However, the present invention may be implemented in several different forms and is not limited to the embodiments described herein. In addition, it should be noted that parts denoted by the same reference numerals throughout the detailed description mean the same components.

Hereinafter, an air conditioning system for a vehicle having a dual HVAC heat exchanger according to an embodiment of the present invention will be described in detail.

1 shows the configuration of an air conditioning system for a vehicle having a dual HVAC heat exchanger according to the present invention.

Referring to FIG. 1 , the vehicle air conditioning system 100 according to the present invention heats a high temperature through heat exchange between a primary circulation system 110 in which a refrigerant circulates and a refrigerant circulating in the primary circulation system 110 . A secondary circulation system 140 that generates water and low-temperature cooling water (cooling water), respectively, and simultaneously or selectively supplies the plurality of heat exchangers 152 and 154 provided in the HVAC (Heating, Ventilation, & Air Conditioning) module 150 ) is included.

The primary circulation system 110 has a configuration in which the compressor 112, the condenser 114, the expansion valve 116, and the evaporator 118 are sequentially connected by a refrigerant pipe, and the compressor 112 by the power of the engine or the battery. is driven, the refrigerant is circulated through the refrigerant pipe.

That is, in the primary circulation system 110 , the refrigerant gas compressed at high temperature and high pressure through the compressor 112 passes through the condenser 114 and is converted into a liquid refrigerant through heat exchange, and the liquefied refrigerant is converted into an expansion valve 116 . ), after being converted into a low-temperature, low-pressure gas, the vaporized low-temperature refrigerant exchanges heat while passing through the evaporator 118 , and then is converted into a low-temperature gaseous refrigerant and sent back to the compressor 112 for compression at high temperature and high pressure. The process will be iteratively performed.

The secondary circulation system 140 is a part in which the cooling water circulates, and generates high-temperature heating water and low-temperature cooling water through heat exchange with the refrigerant circulating in the primary circulation system 110 to exchange heat in each HVAC module 150 . Simultaneously or selectively supplied to the units 152 and 154, hot heating air and cold cooling air are heated through heat exchange between the cooling and heating water supplied to each heat exchanger 152 and 154 and the external air blown through the blower 151. This creates a cooling or heating environment of different temperatures while simultaneously or selectively performing cooling and heating for each area of the vehicle interior.

Specifically, the secondary circulation system 140 includes a heating circulation system 120 in which the high-temperature heating water generated through heat exchange with the refrigerant in the condenser 114 part of the primary circulation system 110 is circulated, and the evaporator ( 118) is composed of a cooling circulating system 130 in which circulation of low-temperature cooling water generated through heat exchange with a refrigerant is made.

The heating circulation system 120 generates high-temperature heating water through heat exchange with the refrigerant in the condenser 114 part of the primary circulation system 110 and is provided inside the HVAC module 150 through a water pump 121 . Heating water is supplied to the heat exchangers 152 and 154 , and the heating water whose temperature has been lowered through heat exchange with air in the heat exchangers 152 and 154 forms a circulation cycle in which the heating water moves back to the condenser 114 side.

The cooling circulation system 130 generates low-temperature cooling water through heat exchange with the refrigerant in the evaporator 118 part of the primary circulation system 110 and the heat exchangers 152 and 154 inside the HVAC module 150 through the water pump 131 . ), and forms a circulation cycle in which the cooling water whose temperature has risen through heat exchange with air in the heat exchangers 152 and 154 moves back to the evaporator 118 side.

Meanwhile, in the HVAC module 150 , two or more heat exchangers 152 and 154 into which heating water and cooling water generated from the heating circulation system 120 and the cooling circulation system 130 are respectively introduced are provided. In the embodiment of the present invention, a case in which two heat exchangers 152 and 154 are provided inside the HVAC module 150 will be described as an example.

Specifically, a first heat exchanger 152 and a second heat exchanger 154 having different heat exchange capacities are provided inside the HVAC module 150 . Here, the heat exchange capacity of the second heat exchanger 154 may be relatively larger than that of the first heat exchanger 152 .

At this time, in the case of the first heat exchanger 152 having a small heat exchange capacity, it may be disposed at a location far from the blower 151 , that is, close to the outlet of the HVAC module 150 , and the second heat exchanger having a relatively large heat exchange capacity. The heat exchanger 154 may be disposed on a position adjacent to the blower 151 .

In this case, the amount of heating or cooling air generated by the second heat exchanger 154 becomes relatively larger than the amount of heating or cooling air generated by the first heat exchanger 152 , and thus the second heat exchanger 154 . According to the heating or cooling capacity of the HVAC module 150, temperature control for the heating or cooling air discharged out of the can be made more easily.

On the other hand, the interior of the first heat exchanger 152 and the second heat exchanger 154 is divided into two regions, that is, a first region (A) and a second region (B), and the partitioned first region ( Heating water or cooling water may be simultaneously or selectively introduced into A) and the second area (B).

That is, heating water or cooling water is simultaneously introduced into the first area (A) and the second area (B) of each heat exchanger (152, 154), or heating water and cooling water are introduced into the first area (A) or the second area (B). The number may optionally be introduced. However, in a situation in which only one of the first heat exchanger 152 and the second heat exchanger 154 is operated, the supply of heating water and cooling water to the inside of the non-operated heat exchanger may be blocked.

In addition, in each heat exchanger 152 and 154 of the HVAC module 150, heating water or cooling water introduced into the inside is heat-exchanged with air blown through the blower 151 to generate hot heating air and cold cooling air, and the HVAC module 150 ), heating air and cooling air can be simultaneously provided for each area of the vehicle interior by simultaneously being discharged into the vehicle interior through the discharge ports provided for each area (left and right in the embodiment).

In this case, the temperature control of the cooling and heating air by the first heat exchanger 152 and the second heat exchanger 154 is performed in the first heat exchanger 152 and the second heat exchanger 154 having different heat exchange capacities. , It can be possible through selectively supplying heating water and selectively supplying cooling and heating water to the first region (A) and the second region (B) inside each of the heat exchangers 152 and 154 .

Meanwhile, by using the air conditioning system 100 of the present invention having the above configuration, heating and cooling air are simultaneously supplied to each area of the vehicle interior to perform heating and cooling in different areas, a specific area of the vehicle interior It can be operated in various modes, such as a mode in which only heating or cooling air is supplied to the maximum, dehumidification mode, and a mode for controlling the temperature of heating and cooling air, which are installed in the heating circulation system 120 and the cooling circulation system 130 It can be achieved through a plurality of control valves that perform an opening/closing operation through a control unit (not shown).

Specifically, a plurality of control valves operated in a three-way-valve manner are installed on the piping line forming the heating circulation system 120 and the piping line forming the cooling circulation system 130 . Accordingly, by selectively opening and closing the inlet and outlet passages of each control valve through the selective opening/closing operation of the control valve by the control unit, heating water and cooling water are simultaneously or selectively opened into each heat exchanger 152 and 154 in the HVAC module 150. In addition, the flow of cooling and heating water can be appropriately induced to each system unit including the battery unit 160 , the electric unit 180 , and the radiator 170 .

First, as a control valve installed in the heating circulatory system 120, the high-temperature heating water generated after heat exchange with the refrigerant in the condenser 114 part in the direction of each heat exchanger 152 and 154 inside the HVAC module 150 or the radiator of the vehicle ( 170) in the direction of each heat exchanger 152 and 154 inside the HVAC module 150 or the vehicle's battery, the heating water passing through the first valve V1 and the first valve V1 controlled to be selectively supplied in the direction A plurality of second valves V2 that are controlled to be selectively supplied to the side of the unit 160, and a plurality of heating water that have passed through the second valves V2 are controlled to be selectively supplied to each of the heat exchangers 152 and 154 in the side direction. It is configured to include a third valve.

The first valve V1 is installed on the first line L1 on the outlet side of the heater 122, and after heat exchange with the refrigerant in the condenser 114, the high-temperature heating water additionally heated through the heater 122 is controlled by the controller. According to the selective opening and closing of the first valve V1, it is supplied to each heat exchanger 152 and 154 in the HVAC module 150 through the second line L2 or to the radiator 170 of the vehicle through the tenth line L10. can be controlled.

The second valve V2 is installed on the outlet side of the second line L2, and the heating water passing through the first valve V1 is supplied to the heat exchangers 152 and 154 through the third line L3, or It may be controlled to be supplied in the direction of the battery unit 160 through the 19 line L19.

The third valve is installed on the third line L3 and the seventh line L7 from the second valve V2 to each of the heat exchangers 152 and 154, respectively. Among the third valves, the 3-1 valve V3 -1) is installed at the intersection of the third line L3 and the fourth line L4 directed to the second heat exchanger 154, and the 3-2 valve V3-2 is connected to the first heat exchanger 152 ), installed at the intersection of the 7th line (L7) and the 8th line (L8), to direct the heating water to the first heat exchanger 152 and the second heat exchanger 154 according to the selective opening and closing operation by the control unit. It is controlled to feed simultaneously or selectively feed to either heat exchanger.

Here, in the case of the 3-1 valve V3-1, one outlet is opened to any one of the first area (A) and the second area (B) of the first heat exchanger 152 in some cases. Heating water may be introduced, or two outlets may be opened together and controlled to supply heating water to both the first area A and the second area B of the first heat exchanger 152 .

In addition, a fourth valve is installed on the outlet line of the heating water or cooling water that is discharged after heat exchange with air is made in the first heat exchanger 152 and the second heat exchanger 154, and in each of the heat exchangers 152 and 154 . Heating water or cooling water discharged after heat exchange may be controlled to flow into the condenser 114 or the evaporator 118, respectively.

In this case, the 4-1 valve (V4-1) is installed on the 9-2 line (L9-2), which is the outlet line of the first heat exchanger (152), and heat exchanges with air in the first heat exchanger (152). Then, the heating water discharged along the 9-2 line (L9-2) flows into the condenser 114 side through the 6th line (L6) or the cooling water discharged along the 9-1 line (L9-1) It may be controlled to flow into the evaporator 118 side along the 16th line (L16) and the 17th line (L17).

At this time, through the 9-1 line (L9-1), which is another outflow line of the first heat exchanger 152, the heating water that has undergone heat exchange with air is discharged, and the heating is discharged after heat exchange in the electric part 180 of the vehicle. The water and the 6th line (L6) join and flow into the condenser (114) side.

In addition, the 4-2 valve (V4-2) is installed on the fifth line (L5), which is the outlet line of the second heat exchanger (154), and after heat exchange with air in the second heat exchanger (154), the fifth line Heating water flowing out along (L5) flows into the condenser 114 through the sixth line (L6), or cooling water flowing out along the fifth line (L5) joins the 16th line (L16) and joins the 17th It may be controlled to flow into the evaporator 118 side through the line L17.

At this time, the cooling water having heat exchange with air is discharged through the 15th line (L15), which is another water outlet line of the second heat exchanger (154), moves along the 16th line (L16), and then the battery unit 160 of the vehicle. ) joins with the cooling water discharged after heat exchange in the evaporator 118 along the 17th line (L17).

On the other hand, on the line from the evaporator 118 to the heat exchangers 152 and 154 of the cooling circulation system 130, the low-temperature cooling water exchanged with the refrigerant in the evaporator 118 part is controlled to be selectively supplied to the heat exchangers 152 and 154. Two fifth valves are provided.

Here, the 5-1 valve V5-1) is installed at the intersection of the 13-1 line (L13-1) and the 14th line (L14) to introduce cooling water to the second heat exchanger 154 side or 1 may be controlled to flow into the heat exchanger 152 side.

In addition, the 5-2 valve (V5-2) is installed on the 13-2 line (L13-2), and the cooling water passing through the 5-1 valve V5-1) is installed on the 13-4 line (L13) -4) and the first heat exchange through the fourth line (L4) to the second heat exchanger 154, or through the 13-2 line (L13-2) and the 13-3 line (L13-3) The cooling water may be controlled to flow into the unit 152 .

In addition, a sixth valve V6 is installed at the intersection of the eleventh line L11 and the twelfth line L12 of the cooling circulatory system 130 to supply low-temperature cooling water heat-exchanged with the refrigerant in the evaporator 118 to the battery unit. It may be controlled to flow into the twelfth line L12 directed to 160 , or to flow into the 24th line L24 toward the radiator 170 through the 23rd line L23 .

In addition, at the intersection of the 12th line (L12) and the 19th line (L19), a 7th valve (V7) is installed, and the cooling water passing through the 6th valve (V6) is supplied to the 19th line (L19) and the 21st line It may be controlled such that cooling water is introduced into the battery unit 160 through L21 or selectively introduced into each of the heat exchangers 152 and 154 through the 13-1 line L13-1.

As such, the heating circulatory system 120 and the cooling circulatory system 130 are connected to the electric/electronic equipment 180 and the battery unit 160 for vehicles including electric/electronic equipment such as motors, inverters, and converters through a plurality of piping lines and control valves. By connecting the heating water and cooling water to circulate, respectively, it is possible to selectively control the heating and cooling of the electric vehicle unit 180 and the battery unit 160 according to the opening and closing operation of the plurality of control valves through the control unit.

As described above, the vehicle air conditioning system 100 according to the present invention has a primary circulation system 110 including a compressor 112 , a condenser 114 , an expansion valve 116 , and an evaporator 118 in a space blocked from the vehicle passenger compartment. ) by configuring a refrigerant circuit, and by configuring a cooling water circuit in the secondary circulation system 140 that generates heating water and cooling water by exchanging heat with the refrigerant circulating in the primary circulation system 110 in a water-cooled manner, the secondary circulation system 140 ) generated in the HVAC module 150 at the same time or selectively supplied to the dual heat exchangers 152 and 154 inside the HVAC module 150 to generate heating and cooling air through heat exchange with air, and then It is possible to simultaneously or selectively provide cooling and heating air at different temperatures for each area.

In particular, the vehicle air conditioning system 100 of the present invention selectively opens and closes a plurality of control valves installed in specific lines of the heating circulatory system 120 and the cooling circulatory system 130 of the secondary circulatory system 140 through the control unit to open and close the HVAC module HVAC according to the opening/closing combination of a plurality of control valves by controlling to simultaneously or selectively supply cooling water and heating water to the first region (A) and the second region (B) of each of the heat exchangers 152 and 154 in 150 . It is possible to simultaneously obtain cooling air and heating air for each of the first and second regions A and B in each heat exchanger 152 and 154 by simultaneously introducing cooling water and heating water into each heat exchanger 152 and 154 inside the module 150. This may be possible, and through this, the temperature of the cooling and heating air discharged to the outlet of the HVAC module 150 can be provided in various ways for each area of the vehicle interior.

Meanwhile, FIGS. 2 to 6 exemplify various vehicle indoor cooling and heating modes that can be implemented using the vehicle air conditioning system 100 of the present invention having the above-described configuration.

First, FIG. 2 illustrates a mode in which heating and cooling air are simultaneously discharged from the left and right areas of the vehicle interior through the second heat exchanger 154 installed in the HVAC module 150, so that heating and cooling are performed simultaneously for each left and right areas. .

In particular, in the mode illustrated in FIG. 2 , the second heat exchanger 154 having a relatively large heat exchange capacity among the two heat exchangers 152 and 154 installed in the HVAC module 150 is used to provide cooling air and heating in the left and right directions of the vehicle's interior. It shows that air is simultaneously discharged and provided.

First, looking at the heating water circulation process in the heating circulation system 120 , the high-temperature heating water generated after heat exchange with the refrigerant in the condenser 114 part of the primary circulation system 110 has no heating demand from the battery unit 160 . In this case, the inflow into the second region B of the second heat exchanger 154 of the HVAC module 150 via the first valve V1, the second valve V2, and the 3-1 valve V3-1. After heat exchange with the air blown through the blower 151, the heating water in a slightly lowered temperature is discharged along the 5th line (L5) and goes through the 4-2 valve (V4-2) through the 6th line ( After it merges with another heating water moving along L6), the cycle of flowing back into the condenser 114 is repeated.

At the same time, a part of the heating water separated from the first valve (V1) part moves toward the radiator 170 along the tenth line (L10) and the twenty-fourth line (L24) to exchange heat with the outside air, and after the heat exchange, the heating temperature is lowered The water flows into the electric part 180 of the vehicle along the 25th line (L25), exchanges heat with the electric part 180, and moves along the 26th line (L26) after heat exchange, and then in the second heat exchanger (154). After the heat exchange, the heating water discharged through the 4-2 valve (V4-2) joins the sixth line (L6) and the circulation process of flowing back into the condenser 114 side is repeated.

On the other hand, in the cooling circulatory system 130 , the low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator 118 part is separated from the seventh valve V7 part via the sixth valve V6, and part of the 19th line L19 ) and the 21st line (L21) are supplied to the battery unit 160 to cool the battery, and the remaining part of the cooling water separated from the 7th valve (V7) is supplied to the 13-1 line (L13-1). It moves along and flows through the 5-1 valve V5-1) along the 14th line (L14) and flows into the first area (A) of the second heat exchanger 154, and the temperature after heat exchange with the blown air is slightly lower The cooling water in the elevated state moves along the 15th line (L15) and the 16th line (L16) and joins with another cooling water discharged along the 22nd line (L22) after heat exchange in the battery unit (160) to join the 17th line (L15). The cycle of flowing into the evaporator 118 along the line L17 is repeated.

The cooling water and heating water supplied to the first area (A) and the second area (B) of the second heat exchanger 154 through the circulation process of the heating water and cooling water as described above, respectively, and supplied from the blower 151 Cooling air and heating air are generated through heat exchange of the used air and simultaneously discharged through the left and right outlets of the HVAC module 150, thereby providing cooling air and heating air to the left and right spaces of the vehicle interior at the same time.

Meanwhile, FIG. 3 illustrates a mode in which heating and cooling are simultaneously implemented in the left and right areas of the vehicle interior through the first heat exchanger 152 installed in the HVAC module 150 .

The mode illustrated in FIG. 3 uses the first heat exchanger 152 having a relatively small heat exchange capacity among the two heat exchangers 152 and 154 installed in the HVAC module 150 to simultaneously supply heating air and cooling air to the left and right sides of the vehicle interior. show what it provides

First, looking at the heating water circulation in the heating circulation system 120 , the high-temperature heating water generated after heat exchange with the refrigerant in the condenser 114 part of the primary circulation system 110 is separated from the first valve V1 part and some is moved toward the first heat exchanger 152 and the remaining part is moved toward the radiator 170 .

In this case, a portion of the heating water separated from the first valve V1 passes through the second valve V2, the 3-1 valve V3-1, and the 3-2 valve V3-2. It flows into the first area (A) of the first heat exchanger 152 provided in the HVAC module 150, and is discharged along the 9-1 line (L9-1) with the temperature slightly lowered after heat exchange with air. The heating water discharged after heat exchange in the electric part 180 of the vehicle merges with the heating water in the sixth line L6 and the circulation process toward the condenser 114 is repeated.

At the same time, another heating water separated from the first valve (V1) is moved to the radiator 170 along the tenth line (L10) and the twenty-fourth line (L24) to exchange heat with the outside air, and after the heat exchange, the temperature rises somewhat. In the lowered state, it flows into the electric length 180 of the vehicle along the 25th line (L25), is thermally bridged with the electric length portion 180, and moves along the 26th line (L26) after heat exchange to the first heat exchanger (152) After the heat exchange in the , the heating water discharged through the 9-1 line (L9-1) and the circulation process that joins in the 6th line (L6) and flows into the condenser (114) side are repeated.

On the other hand, the low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator 118 in the cooling circulation system 130 passes through the sixth valve V6 and in the seventh valve V7, the first heat exchanger 152 and the battery unit. The second region (B) of the first heat exchanger 152 is divided into two paths toward 160, and a part of it passes through the 5-1 valve V5-1 and the 5-2 valve V5-2. ), and after heat exchange with air, the water flows out through the 4-1 valve (V4-1) in a state where the temperature is slightly elevated, and then moves along the 16th line (L16) and heat exchanged in the battery unit (160). The circulation process of joining the cooling water flowing out along the 22nd line (L22) and flowing back into the evaporator 118 side along the 17th line (L17) is repeated, and the cooling water separated from the 7th valve (V7) is also The other portion is introduced into the battery unit 160 along the 19th line (L19) and the 21st line (L21), is discharged through the 22nd line (L22) after heat exchange, and after heat exchange in the first heat exchanger (152), the 16th line The circulation process of joining the cooling water moving along the line L16 and flowing into the evaporator 118 along the 17th line is repeated.

In the blower 151, the heating water and cooling water supplied to the first area (A) and the second area (B) of the first heat exchanger (152), respectively, through the circulation process of the heating and cooling water as described above. Heating air and cooling air are generated through heat exchange of the supplied air and simultaneously discharged through the left and right outlets of the HVAC module 150, thereby providing heating air and cooling air to the left and right spaces of the vehicle interior at the same time.

Meanwhile, FIG. 4 shows an example implemented in the maximum heating mode using the first heat exchanger 152 and the second heat exchanger 154 installed in the HVAC module 150 .

Referring to FIG. 4, first looking at the circulation process of heating water by the heating circulation system 120, the high-temperature heating water generated after heat exchange with the refrigerant in the condenser 114 part of the primary circulation system 110 is returned to the first valve ( After passing through V1) and the second valve (V2), it is divided into two paths from the 3-1 valve (V3-1) to the first heat exchanger (152) and the second heat exchanger (154). Then, the separated part of the heating water is supplied to the second region B of the second heat exchanger 154 through the fourth line L4, exchanges heat with air, and is discharged again through the fifth line L5. After passing through the 4-2 valve (V4-2), after heat exchange in the first heat exchanger 152, the heating water discharged through the 9-1 line (L9-1) joins the 6th line (L6) to condenser (114) Repeat the flow in to the side of the cycle. In addition, another part of the heating water separated from the 3-1 valve (V3-1) moves to the 3-2 valve (V3-2) and then the 13-3 line (L13-3) and the 8th line (L13-3) It flows in parallel to the first area (A) and the second area (B) of the first heat exchanger 152 through the line (L8), and after heat exchange with air, the 9-1 line (L9-1) and the 9th- Heating water discharged through the second line (L9-2) and discharged along the 9-1 line (L9-1) moves along the sixth line (L6) after heat exchange in the electric unit 180 The heating water merges with water and flows into the condenser 114 side, and the heating water discharged along the 9-2 line (L9-2) passes through the 4-2 valve (V4-2) through the 6th line (L6). The circulation process introduced into the condenser 114 side through the repeating process is repeated.

On the other hand, the low-temperature cooling water generated through heat exchange with the refrigerant in the evaporator 118 portion in the cooling circulatory system 130 is directed from the sixth valve V6 to the battery unit 160 and the radiator 170 through two paths. Some are separated and supplied to the battery unit 160 through the 19th line (L19) and the 21st line (L21) via the 7th valve (V7), and after heat exchange in the battery unit 160, the 22nd line (L22) ) and repeats the circulation process flowing into the evaporator 118 along the 17th line (L17), and in addition, some of the cooling water separated from the 6th valve (V6) is separated from the 23rd line (L23) and After moving to the radiator 170 along the 24th line (L24) and exchanging heat with the outside air, it moves to the electric unit 180 along the 25th line (L25) for heat exchange, and after heat exchange, the water is discharged through the 26th line (L26) The cooling water moves along the 18th line (L18) and after heat exchange in the battery unit 160, it merges with the cooling water discharged along the 17th line (L17) and flows into the evaporator 118 again.

Through the circulation process of the heating water and cooling water as described above, the first area (A) and the second area (B) of the first heat exchanger 152 and the second area (B) of the second heat exchanger 154 ) by generating heating air from both the first and second heat exchangers 152 and 154 through a heat exchange action between the heating water supplied to each part and the air supplied from the blower 151 , and a large amount of heating air is generated through the outlet of the HVAC module 150 . By discharging heating air, the maximum heating mode can be implemented in the vehicle interior, and at the same time, cooling of the battery unit 160 and the electric unit 180 can be performed together through the cooling water circulating in the cooling circulatory system 130 .

5 shows an example implemented in the maximum cooling mode using the first heat exchanger 152 and the second heat exchanger 154 installed in the HVAC module 150 .

Referring to FIG. 5, first looking at the circulation process of cooling water by the cooling circulation system 130, the low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator 118 part of the primary circulation system 110 is supplied to the 6th valve ( After moving to the seventh valve (V7) via V6), it is separated into two paths toward the heat exchangers 152 and 154 and the battery unit 160, and some of the separated cooling water is transferred to the 13-1 line (L13- After moving along 1), the 5-1 valve V5-1) is again separated into two paths, some through the 14th line (L14), and the rest of the 5-2 valves (V5-2) is introduced into the first and second regions A and B of the second heat exchanger 154 through the fourth line L4 via The cooling water discharged through (L15) and discharged through the fifth line (L5) is the cooling water discharged through the 15th line (L15) through the 4-2 valve (V4-2) and After joining in the 16th line (L16), after heat exchange with the battery unit 160, it joins with the cooling water discharged through the 22nd line (L22), and flows into the evaporator 118 side along the 17th line (L17). Repeat.

In addition, another cooling water separated from the 5-2 valve (V5-2) is introduced into the second area (B) of the first heat exchanger 152 through the 13-3 line (L13-3). After heat exchange with the water, the water is discharged through the 9-2 line (L9-2) and moves along the 16th line (L16) via the 4-1 valve (V4-1), and then heat exchanges with the battery unit 160 . Then, the circulation process is repeated, which joins the cooling water discharged through the 22nd line (L22) and flows back into the evaporator (118) side along the 17th line (L17).

At the same time, in the heating circulation system 120, the high-temperature heating water generated after heat exchange with the refrigerant in the condenser 114 part passes through the first valve V1 to the radiator along the 10th line (L10) and the 24th line (L24). After moving to the 170 side, in a state where the temperature is slightly lowered through heat exchange with the outside air, it moves to the electric length unit 180 along the 25th line (L25) to perform heat exchange, and then is discharged through the 26th line (L26). The circulation process of flowing back into the condenser 114 side along the 6th line L6 is repeated.

Through the circulating process of heating water and cooling water as described above, the second region (B) portion of the first heat exchanger 152 having a relatively small heat exchange capacity and the first portion of the second heat exchanger 154 having a large heat exchange capacity Maximum cooling of the vehicle interior by generating a large amount of cooling air through the heat exchange action between the cooling water and air supplied to both the area (A) and the second area (B) and discharging it through the outlet of the HVAC module 150 mod can be implemented.

Meanwhile, FIG. 6 shows an example implemented in a dehumidification mode using the first heat exchanger 152 and the second heat exchanger 154 installed in the HVAC module 150 .

Referring to FIG. 6 , first looking at the heating water circulation process in the heating circulation system 120 , the high-temperature heating water generated after heat exchange with the refrigerant in the condenser 114 part of the primary circulation system 110 is supplied to the first valve V1. ) and the 2nd valve (V2) and the 3-1 valve (V3-1) via the 3-2 valve (V3-2) part is separated into two paths, some of the 8th line (L8) Through, another part is introduced into the first area (A) and the second area (B) of the first heat exchanger 152 through the 13-3 line (L13-3) to exchange heat with air, respectively, and heat-exchanged The heating water whose temperature has been lowered is discharged through the 9-1 line (L9-1) and the 9-2 line (L9-2), respectively, and is discharged through the 9-1 line (L9-1), respectively. After the heating water is discharged through the 9-2 line (L9-2), it joins with the heating water moving through the 4-1 valve (V4-1) in the 6th line (L6), and the condenser (114) The cycle of inflow to the side is repeated.

At the same time, in the cooling circulatory system 130 , the low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator 118 passes through the sixth valve V6 to the seventh valve V7 part, the second heat exchanger 154 and the battery part. The cooling water is separated into two paths toward 160, and the separated part of the cooling water passes through the 13-1 line (L13-1) to the 5-1 valve V5-1) and the 5-2 valve V5-2. After flowing into the first region (A) and the second region (B) of the second heat exchanger 154 through the fourth line (L4) and the 14th line (L14) via A dehumidification mode may be implemented by generating air and discharging it through a discharge port in a mixed state with the generated heating air after heat exchange in the first heat exchanger 152 . In addition, another cooling water separated from the seventh valve (V7) flows into the battery unit 160 and exchanges heat, and then the cooling water moves along the 16th line (L16) after heat exchange in the second heat exchanger (154). By repeating the circulation process flowing into the evaporator 118 along the 17th line L17 in the state where it merges with the evaporator, it is possible to simultaneously perform dehumidification of the vehicle interior and cooling of the battery.

According to the present invention described above, cooling water and heating water are simultaneously flowed to the plurality of water-cooled heat exchangers 152 and 154 installed inside the HVAC module 150, respectively, to generate cooling and heating air through heat exchange with air, respectively, in each of the interior of the vehicle. It has the advantage of being able to simultaneously or selectively provide cooling and heating air at different temperatures for each area. Accordingly, it provides a different temperature environment for each left and right areas of the vehicle interior without separately developing numerous control valves in the air conditioning system circuit and complex valve control logic to control the control valves for air temperature control as in the past. It has the advantage of providing a more comfortable cooling and heating sensation to the occupants.

In addition, unlike the conventional direct air conditioning system in which a part of the refrigerant circuit is piped to the evaporator located inside the vehicle and provides cooling air to the vehicle interior through heat exchange between the refrigerant of the evaporator and the air inside the HVAC module, the air conditioning of the present invention The system constitutes a refrigerant circuit composed of a compressor, a condenser, an expansion device, and an evaporator in a space isolated from the vehicle interior, and generates cooling water and heating water through heat exchange with the refrigerant flowing through this refrigerant circuit. As it is composed of an indirect air conditioning system that provides cooling air and heating air to the inside of the vehicle by exchanging heat with air and water through the heat exchanger of Alternatively, there is an advantage in that it is possible to prevent a safety accident of an occupant caused by leakage of a flammable refrigerant in advance.

Therefore, even if a cheap refrigerant (for example, R290 propane gas) with an acceptable level of toxicity or flammability is applied, the possibility of a toxic or flammable refrigerant leaking into the vehicle interior can be fundamentally blocked, thereby enhancing the safety of occupants. In addition to the guarantee, there is an advantage in that it is possible to suppress the increase in the maintenance cost of the vehicle due to the application of the expensive refrigerant as in the past.

In particular, in the present invention, an indirect method of cooling and heating the interior of a vehicle is applied through a water-cooling method in which a refrigerant pipe is secondarily exchanged with a refrigerant without installing a refrigerant pipe directly into the vehicle interior. There is an advantage in that no leaks occur in the vehicle interior, and in addition, in order to improve the heat transfer performance with the outside air, the selection of refrigerants can be expanded up to the flammable grade, so that the vehicle maintenance cost can be significantly reduced.

In the above, preferred embodiments of the present invention have been described, but the scope of the present invention is not limited to these specific embodiments, and those skilled in the art will appropriately change within the scope described in the claims of the present invention. this will be possible

100: air conditioning system 110: primary circulation system
112: compressor 114: condenser
116: expansion valve 118: evaporator
120: heating circulatory system 130: cooling circulatory system
140: secondary circulatory system 150: HVAC module
151: blower 152: first heat exchanger
154: second heat exchanger 160: battery unit
170: radiator 180: battlefield

Claims (15)

a primary circulation system in which the refrigerant is circulated through the condenser and the evaporator;
a secondary circulation system having a heating circulation system in which heating water is generated and circulated through heat exchange with a refrigerant in the condenser, and a cooling circulation system in which cooling water is generated and circulated through heat exchange with a refrigerant in the evaporator;
The interior is divided into a first region and a second region, and the heating water generated in the heating circulation system and the cooling water generated in the cooling circulation system are simultaneously or selectively supplied to the first region and the second region to exchange heat with air. HVAC module equipped with two or more heat exchangers for generating heating air and cooling air through
It is installed in the heating circulation system and the cooling circulation system, respectively, and opening and closing is controlled through a control unit to simultaneously or selectively supply heating water and cooling water to the first region and the second region of each heat exchanger provided in the HVAC module. A plurality of control valves of the three-way valve type;
A vehicle air conditioning system having a dual HVAC heat exchanger comprising a.
According to claim 1, wherein the HVAC module is provided with two different first and second heat exchangers divided into a first area and a second area,
The second heat exchanger has a larger heat exchange capacity than the first heat exchanger and is disposed at a position relatively close to a blower provided in the HVAC module.
The method of claim 1, wherein the heating circulatory system and the cooling circulatory system are respectively connected to the electric vehicle part and the battery part, and selectively heating or cooling the electric part and the battery part according to the opening/closing operation of the control valve by the controller. A vehicle air conditioning system with dual HVAC heat exchangers.
According to claim 2, wherein the control valve installed in the heating circulation system,
a first valve controlled so that the heating water generated through heat exchange in the condenser is simultaneously or selectively supplied to the first and second heat exchangers inside the HVAC module and to a radiator of a vehicle;
a second valve controlled so that the heating water passing through the first valve is selectively supplied to the first heat exchanger and the second heat exchanger, and to the battery unit; and
a plurality of third valves controlled such that the heating water passing through the second valve is simultaneously or selectively supplied to the first heat exchanger and the second heat exchanger;
A vehicle air conditioning system having a dual HVAC heat exchanger comprising a.
According to claim 3, The third valve,
a 3-1 valve which is controlled to selectively supply the heating water that has passed through the second valve to the second heat exchanger;
a 3-2 valve controlled to selectively supply the heating water that has passed through the 3-1 valve to the first heat exchanger;
A vehicle air conditioning system having a dual HVAC heat exchanger comprising a.
The method of claim 5, further comprising a plurality of fourth valves controlled so that the heating water and cooling water discharged after heat exchange with air in the first heat exchanger and the second heat exchanger can be selectively moved to the condenser and the evaporator, respectively. A vehicle air conditioning system having a dual HVAC heat exchanger, characterized in that it comprises.
The method of claim 6, wherein the fourth valve,
a 4-1 valve which is controlled to selectively move heating water or cooling water discharged after heat exchange with air in the first heat exchanger toward the condenser or evaporator;
a 4-2 valve which is controlled to selectively move heating water or cooling water discharged after heat exchange with air in the second heat exchanger toward the condenser or evaporator;
A vehicle air conditioning system having a dual HVAC heat exchanger comprising a.
The dual of claim 7, further comprising a plurality of fifth valves controlled to simultaneously or selectively supply cooling water generated after heat exchange with the refrigerant in the evaporator to the first heat exchanger and the second heat exchanger. A vehicle air conditioning system with an HVAC heat exchanger.
The method of claim 8, wherein the fifth valve,
a 5-1 valve which is controlled to selectively supply cooling water generated after heat exchange with the refrigerant in the evaporator to the second heat exchanger;
a 5-2 valve controlled to selectively supply the cooling water that has passed through the 5-1 valve to the first heat exchanger;
A vehicle air conditioning system having a dual HVAC heat exchanger comprising a.
The method of claim 9, wherein the control valve installed in the cooling circulation system,
a sixth valve controlled so that the cooling water generated through heat exchange in the evaporator is simultaneously or selectively supplied to the first and second heat exchangers inside the HVAC module and to a radiator of a vehicle;
a seventh valve controlled to selectively supply cooling water that has passed through the sixth valve to the first heat exchanger and the second heat exchanger, and to the battery unit;
A vehicle air conditioning system having a dual HVAC heat exchanger comprising a.
The method of claim 10, wherein in the simultaneous discharge mode of cooling and heating air by the second heat exchanger,
The high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system flows into any one of the first and second regions of the second heat exchanger via the first valve, the second valve, and the 3-1 valve. After heat exchange with air, the heating water discharged after heat exchange is controlled to circulate the heating water flowing back into the condenser side through the 4-2 valve,
The low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system passes through the 6th valve, the 7th valve, and the 5-1 valve to the other of the first and second areas of the second heat exchanger. A dual HVAC heat exchanger, characterized in that the cooling water discharged after the heat exchange is controlled so that the cooling water discharged from the battery unit after heat exchange is controlled to circulate the cooling water flowing into the evaporator A vehicle air conditioning system.
The method according to claim 10, wherein in the simultaneous discharge mode of cooling and heating air by the first heat exchanger,
The high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system passes through the first valve, the second valve, the 3-1 valve, and the 3-2 valve in the first region and the second region of the first heat exchanger. Controlled so that the heating water discharged after being introduced into any one of the regions is heat-exchanged with air, and the heating water discharged after the heat exchange is merged with the heating water discharged after heat exchange in the electric part, and the heating water flowing back into the condenser is circulated,
The low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system passes through the 6th valve, the 7th valve, the 5-1 valve, and the 5-2 valve in the first area and the second area of the first heat exchanger. Cooling water that flows into another part of the region and exchanges heat with air, and the cooling water discharged after heat exchange joins with the cooling water discharged from the battery unit after heat exchange through the 4-1 valve and flows into the evaporator An air conditioning system for a vehicle having a dual HVAC heat exchanger, characterized in that the circulation is controlled.
11. The method of claim 10, In the maximum heating mode by the first heat exchanger and the second heat exchanger,
The high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system passes through the first and second valves and passes through the 3-1 valve in any one of the first region and the second region of the second heat exchanger On the other hand, the heating water flowing into the first and second regions of the first heat exchanger through the 3-2 valve to exchange heat with air, and then discharged from the second heat exchanger after the heat exchange, is provided through the 4-2 valve. Controlled to circulate the heating water flowing back into the condenser through the become,
The low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system is separated from the 6th valve, and some cooling water flows into the battery unit through the 7th valve for heat exchange, and is discharged from the battery unit after heat exchange Cooling water flows back into the evaporator, and another part of the cooling water separated from the sixth valve passes through the radiator to exchange heat with outside air, then moves to the electric part to exchange heat, and then circulates the cooling water flowing back into the evaporator. An air conditioning system for a vehicle having a dual HVAC heat exchanger, characterized in that it is controlled to be made.
The method of claim 10, wherein in the maximum cooling mode by the first heat exchanger and the second heat exchanger,
The high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system is controlled to circulate the heating water flowing back to the condenser side through the radiator and the electric part via the first valve,
The low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system is separated from the 7th valve via the 6th valve, and some of the separated cooling water is passed through the 5-1 valve and the 5-2 valve Thus, the cooling water discharged from the first heat exchanger after being introduced into one of the first and second regions of the second heat exchanger and the first region or the second region of the first heat exchanger to exchange heat with air passes through the 4-1 valve, and the cooling water discharged from the second heat exchanger joins through the 4-2 valve, is separated from the 7th valve, flows into the battery unit, and is discharged after heat exchange. An air conditioning system for a vehicle having a dual HVAC heat exchanger, characterized in that the circulation of the cooling water flowing back to the evaporator is controlled after it has merged with other cooling water.
The method of claim 10, wherein in the dehumidification mode by the first heat exchanger and the second heat exchanger,
The high-temperature heating water generated after heat exchange with the refrigerant in the condenser of the heating circulation system is separated into two paths in the 3-2 valve part via the 1st valve, the 2nd valve, and the 3-1 valve, and then in the first heat exchanger. Heating water discharged from the first heat exchanger after being introduced into the first region and the second region to exchange heat with air and heat exchanged moves through a path including the 4-1 valve and then passes through the radiator and the electric unit It is controlled to circulate the heating water that flows back into the condenser after it merges with the exiting heating water.
The low-temperature cooling water generated after heat exchange with the refrigerant in the evaporator of the cooling circulation system is separated into two paths at the 7th valve via the 6th valve, and some of the separated cooling water is separated from the 5-1 valve and the 5-2 The cooling water discharged from the second heat exchanger after being introduced into the first region and the second region of the second heat exchanger through the valve and heat-exchanged with the air joins through the 4-2 valve and then the seventh An air conditioning system for a vehicle having a dual HVAC heat exchanger, wherein the cooling water is controlled to circulate, which is separated from the valve and flows into the battery unit, merges with another cooling water discharged after heat exchange, and then flows back into the evaporator.

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