Vehicle air conditioning system and vehicle

Abstract

The utility model provides a vehicle air conditioning system and a vehicle, and relates to the technical field of vehicles. The two ends of a first refrigerant flow channel of the cooler communicate with the two ends of a second refrigerant flow channel of the water-cooling condenser correspondingly. The two ends of the passenger compartment heat exchange module are connected with the first switching piece and the second switching piece correspondingly, the two ends of the first anti-freezing liquid flow channel are connected with the first switching piece and the second switching piece correspondingly, and the two ends of the second anti-freezing liquid flow channel are connected with the first switching piece and the second switching piece correspondingly. The first switching piece and the second switching piece can enable the passenger compartment heat exchange module to be communicated with a first anti-freezing liquid flow channel of the cooler or a second anti-freezing liquid flow channel of the water cooling condenser, the passenger compartment heat exchange module comprises a radiation heat exchange pipeline, and the radiation heat exchange pipeline is located in a passenger compartment of the vehicle. The passenger compartment is heated or cooled in a radiation heat exchange mode in the temperature stability maintaining stage of the passenger compartment, the temperature uniformity of the passenger compartment is improved, and the problem that the comfort degree of passengers is affected due to the fact that the local cool feeling or heat feeling of the passengers is strong is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle air conditioning system and a vehicle. BACKGROUND

[0002] With the continuous progress of automobile technology and the improvement of people's quality of life, consumers' requirements for automobile comfort are increasingly enhanced. The existing automobile thermal management system generally realizes heating or cooling of the passenger compartment by directly blowing air into the passenger compartment. This way of heating or cooling the passenger compartment by air convection is prone to cause poor temperature uniformity of the passenger compartment. Moreover, directly blowing cold or hot air into the passenger compartment will cause strong local cool or hot feeling of the passengers, affecting the comfort of the passengers. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a vehicle air conditioning system and a vehicle to solve the problem that heating or cooling the passenger compartment by air convection is prone to cause poor temperature uniformity of the passenger compartment, and directly blowing cold or hot air into the passenger compartment will cause strong local cool or hot feeling of the passengers, affecting the comfort of the passengers.

[0004] According to an aspect of the present application, a vehicle air conditioning system is provided, which is installed on a vehicle. The vehicle air conditioning system comprises a refrigerant circuit, a passenger compartment heat exchange module, a first switching piece and a second switching piece. The refrigerant circuit comprises a cooler and a water-cooled condenser. The cooler comprises a first refrigerant flow channel and a first antifreeze flow channel. The water-cooled condenser comprises a second refrigerant flow channel and a second antifreeze flow channel. The two ends of the first refrigerant flow channel are respectively in communication with the two ends of the second refrigerant flow channel.

[0005] The two ends of the passenger compartment heat exchange module are respectively connected with the first switching piece and the second switching piece. The two ends of the first antifreeze flow channel are respectively connected with the first switching piece and the second switching piece. The two ends of the second antifreeze flow channel are respectively connected with the first switching piece and the second switching piece. The first switching piece and the second switching piece can make the passenger compartment heat exchange module in communication with the first antifreeze flow channel or the second antifreeze flow channel. The passenger compartment heat exchange module comprises a radiation heat exchange pipeline, which is located in the passenger compartment of the vehicle.

[0006] Preferably, the passenger compartment heat exchange module further comprises an air conditioning box, which comprises a cooling flow channel and a heating flow channel. The two ends of the cooling flow channel are respectively connected with the first switching piece and the second switching piece. The two ends of the heating flow channel are respectively connected with the first switching piece and the second switching piece.

[0007] When one of the cooling flow channel, the heating flow channel and the radiation heat exchange pipeline is opened, the other two of the cooling flow channel, the heating flow channel and the radiation heat exchange pipeline are closed.

[0008] Preferably, the vehicle air conditioning system further comprises an outside-cabin heat exchange module, the outside-cabin heat exchange module comprises an outside-cabin anti-freezing liquid pipeline and a heat exchanger, the heat exchanger is arranged on the outside-cabin anti-freezing liquid pipeline, and two ends of the outside-cabin anti-freezing liquid pipeline are connected with the first switching element and the second switching element respectively.

[0009] When the passenger cabin heat exchange module communicates with the first anti-freezing liquid flow channel, the second anti-freezing liquid flow channel communicates with the outside-cabin anti-freezing liquid pipeline, and when the passenger cabin heat exchange module communicates with the second anti-freezing liquid flow channel, the first anti-freezing liquid flow channel communicates with the outside-cabin anti-freezing liquid pipeline.

[0010] Preferably, the passenger cabin heat exchange module further comprises a first connecting pipeline and a second connecting pipeline, the first connecting pipeline, the radiation heat exchange pipeline and the second connecting pipeline are sequentially connected, the first connecting pipeline is connected with the first switching element, and the second connecting pipeline is connected with the second switching element.

[0011] Preferably, the radiation heat exchange pipeline comprises two heat exchange pipes, two ends of the heat exchange pipes are connected with the first connecting pipeline and the second connecting pipeline respectively, the two heat exchange pipes are connected in parallel, and parts of the two heat exchange pipes are located at the bottom and the top of the passenger cabin respectively.

[0012] Preferably, the vehicle air conditioning system further comprises a compressor, the refrigerant circuit comprises a first connecting pipeline and a second connecting pipeline, the first connecting pipeline, the second refrigerant flow channel, the second connecting pipeline and the first refrigerant flow channel are sequentially connected, one end of the second refrigerant flow channel opposite to the first connecting pipeline is connected with the second connecting pipeline, and the compressor is arranged on the first connecting pipeline.

[0013] Preferably, the heat exchange pipe comprises a plurality of straight sections, the plurality of straight sections are arranged at intervals, two adjacent straight sections are connected through a bending section, and two straight sections located at edges are connected with the first connecting pipeline and the second connecting pipeline respectively.

[0014] Preferably, the heat exchange pipe comprises a plurality of straight sections, the plurality of straight sections are parallel, two ends of any straight section are connected with the first connecting pipeline and the second connecting pipeline respectively, and the plurality of straight sections are connected in parallel.

[0015] Preferably, the vehicle air conditioning system further comprises an expansion valve, and the expansion valve is arranged on the second connecting pipeline.

[0016] According to another aspect of the present application, a vehicle is provided, which comprises the vehicle air conditioning system as described above.

[0017] In the operation of the vehicle air conditioning system of the present application, the refrigerant circulates in the refrigerant circuit, in the cooling mode, the passenger cabin heat exchange module is communicated with the first antifreeze flow channel, the antifreeze exchanges heat with the refrigerant when flowing through the cooler and becomes low-temperature antifreeze, and then returns to the cooler through the passenger cabin heat exchange module, the passenger cabin is cooled by the way of radiation heat transfer when the low-temperature antifreeze flows through the radiation heat exchange pipeline of the passenger cabin heat exchange module; in the heating mode, the passenger cabin heat exchange module is communicated with the second antifreeze flow channel, the antifreeze exchanges heat with the refrigerant when flowing through the water-cooled condenser and becomes high-temperature antifreeze, and then returns to the water-cooled condenser through the passenger cabin heat exchange module, the passenger cabin is heated by the way of radiation heat transfer when the high-temperature antifreeze flows through the radiation heat exchange pipeline of the passenger cabin heat exchange module. In this way, the passenger cabin is heated or cooled by the way of radiation heat transfer, and the temperature uniformity of the passenger cabin is improved. At the same time, the vehicle air conditioning system of the present application does not directly blow cold or hot air to the passenger cabin, avoiding the problem of strong local cool or heat feeling of the passenger, affecting the comfort of the passenger. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 A schematic diagram of the vehicle air conditioning system of the embodiment of the present application is shown;

[0020] Figure 2 A flow direction diagram of the refrigerant and the antifreeze when the vehicle air conditioning system is in the cooling mode or the initial cooling mode is shown;

[0021] Figure 3 A flow direction diagram of the refrigerant and the antifreeze when the vehicle air conditioning system is in the heating mode or the initial heating mode is shown.

[0022] Icons: 1-refrigerant circuit; 11-cooler; 12-water-cooled condenser; 13-compressor; 14-expansion valve; 15-first connecting pipe; 16-second connecting pipe; 2-passenger compartment heat exchange module; 21-first connecting pipe; 22-second connecting pipe; 23-radiation heat exchange pipe; 24-air conditioning box; 241-cooling flow channel; 242-heating flow channel; 3-outboard heat exchange module; 31-outboard antifreeze pipeline; 32-heat exchanger; 4-first switching element; 41-first connecting port; 42-second connecting port; 43-third connecting port; 44-fourth connecting port; 5-second switching element; 51-first connecting port; 52-second connecting port; 53-third connecting port; 54-fourth connecting port; 55-fifth connecting port; 6-three-way valve. DETAILED DESCRIPTION

[0023] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, except for operations that must occur in a particular order, changes may be made that will be apparent upon understanding the disclosure of this application. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity.

[0024] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0025] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, it may be directly “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on,” “directly connected to,” “directly coupled to,” “directly over,” or “directly covering” another element, there may be no other elements intervening therebetween.

[0026] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0027] Although terms such as "first", "second", and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, terms of a first element, component, region, layer or section described herein could also be termed a second element, component, region, layer or section without departing from the teachings of the examples.

[0028] For ease of description, spatial relationship terms, such as "on", "upper", "under", and "lower", can be used herein to describe the relationship between one element and another element as shown in the drawings. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as on "upper" or "upper" relative to another element would then be oriented "under" or "lower" relative to the other element. Accordingly, the term "on" encompasses both an "on" and "under" orientation based on the spatial orientation of the device. The device can also be oriented in other ways (e.g., rotated 90 degrees or at other orientations) and the spatial relationship terms used herein interpreted accordingly.

[0029] The terms used herein are only used to describe various examples and not to limit the present disclosure. The singular form is intended to include the plural form unless the context clearly indicates otherwise. The terms "include", "comprise", and "have" list the existence of the stated features, numbers, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements, and / or combinations thereof.

[0030] Due to manufacturing techniques and / or tolerances, variations in shapes shown in the drawings can occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings, but include variations in shapes that occur during manufacturing.

[0031] The features of the examples described herein can be combined in various ways as will be apparent after the disclosure of the present application is understood. Also, although the examples described herein have various configurations, other configurations are possible as will be apparent after the disclosure of the present application is understood.

[0032] According to an aspect of the present application, a vehicle air conditioning system is provided, which is installed on a vehicle, such as Figure 1As shown, the vehicle air conditioning system comprises a refrigerant circuit 1, a passenger cabin heat exchange module 2, a first switching piece 4 and a second switching piece 5, the refrigerant circuit 1 comprises a cooler 11 and a water-cooled condenser 12, the cooler 11 comprises a first refrigerant flow channel and a first antifreeze flow channel, the water-cooled condenser 12 comprises a second refrigerant flow channel and a second antifreeze flow channel, and the two ends of the first refrigerant flow channel are respectively communicated with the two ends of the second refrigerant flow channel; the two ends of the passenger cabin heat exchange module 2 are respectively connected with the first switching piece 4 and the second switching piece 5, the two ends of the first antifreeze flow channel are respectively connected with the first switching piece 4 and the second switching piece 5, the two ends of the second antifreeze flow channel are respectively connected with the first switching piece 4 and the second switching piece 5, the first switching piece 4 and the second switching piece 5 can make the passenger cabin heat exchange module 2 communicated with the first antifreeze flow channel or the second antifreeze flow channel, and the passenger cabin heat exchange module 2 comprises a radiation heat exchange pipeline 23 which is located in the passenger cabin of the vehicle.

[0033] In use of the vehicle air conditioning system of the present application, the refrigerant circulates in the refrigerant circuit, in the refrigeration mode, the passenger cabin heat exchange module 2 is communicated with the first antifreeze flow channel of the cooler 11, the antifreeze exchanges heat with the refrigerant when flowing through the cooler 11 to form low-temperature antifreeze, and then returns to the cooler 11 through the passenger cabin heat exchange module 2, and the low-temperature antifreeze cools the passenger cabin by radiation heat transfer when flowing through the radiation heat exchange pipeline 23 of the passenger cabin heat exchange module 2; in the heating mode, the passenger cabin heat exchange module 2 is communicated with the second antifreeze flow channel of the water-cooled condenser 12, the antifreeze exchanges heat with the refrigerant when flowing through the water-cooled condenser 12 to form high-temperature antifreeze, and then returns to the water-cooled condenser 12 through the passenger cabin heat exchange module 2, and the high-temperature antifreeze heats the passenger cabin by radiation heat transfer when flowing through the radiation heat exchange pipeline 23 of the passenger cabin heat exchange module 2. In this way, the passenger cabin is heated or cooled by radiation heat exchange, and the temperature uniformity of the passenger cabin is improved. At the same time, the vehicle air conditioning system of the present application does not directly blow cold or hot air to the passenger cabin, avoiding the problem of strong local cooling or heating of the passenger, which affects the comfort of the passenger.

[0034] In addition, the passenger cabin heat exchange module 2 of the vehicle air conditioning system of the present application heats or cools the passenger cabin by radiation heat exchange, and the refrigerant circuit 1 does not need to pass through the passenger cabin, so the area through which the refrigerant flows is small, and the operation safety of the vehicle air conditioning system is improved.

[0035] As Figure 1As shown, the refrigerant circuit 1 comprises a first connecting pipe 15 and a second connecting pipe 16, the first connecting pipe 15, a second refrigerant flow passage of the water-cooled condenser 12, the second connecting pipe 16 and a first refrigerant flow passage of the cooler 11 are sequentially connected, and an end of the first refrigerant flow passage of the cooler 11 opposite to the second connecting pipe 16 is connected with the first connecting pipe 15. The vehicle air conditioning system further comprises a compressor 13 and an expansion valve 14, the compressor 13 is arranged on the first connecting pipe 15, and the expansion valve 14 is arranged on the second connecting pipe 16. Preferably, the expansion valve 14 is an electronic expansion valve.

[0036] In the embodiment of the present application, the passenger cabin heat exchange module 2 further comprises a first connecting pipe 21 and a second connecting pipe 22, the first connecting pipe 21, the radiation heat exchange pipe 23 and the second connecting pipe 22 are sequentially connected; the first connecting pipe 21 is connected with the first switching piece 4, the second connecting pipe 22 is connected with the second switching piece 5, and the radiation heat exchange pipe 23 is installed in the passenger cabin. The radiation pipe is installed in the passenger cabin, so that the radiation heat exchange pipe 23 can heat or cool the passenger cabin by radiation heat exchange.

[0037] Further, the radiation heat exchange pipe 23 comprises two heat exchange pipes, two ends of each heat exchange pipe are connected with the first connecting pipe 21 and the second connecting pipe 22 respectively, the two heat exchange pipes are connected in parallel, and a part of one heat exchange pipe is located at the bottom of the passenger cabin, and a part of the other heat exchange pipe is located at the top of the passenger cabin. In this way, the two heat exchange pipes can respectively exchange heat with the passenger cabin by radiation, further improving the uniformity of the temperature of the passenger cabin.

[0038] Optionally, in an embodiment of the heat exchange pipe, the heat exchange pipe can comprise a plurality of straight sections, the plurality of straight sections are arranged at intervals, two adjacent straight sections are connected through a bending section, and two straight sections located at edges are respectively connected with the first connecting pipe 21 and the second connecting pipe 22, that is, the heat exchange pipe is arranged in a serpentine shape. In another embodiment of the heat exchange pipe, the heat exchange pipe comprises a plurality of straight sections, two ends of any straight section are respectively connected with the first connecting pipe 21 and the second connecting pipe 22, and the plurality of straight sections are connected in parallel. By arranging the heat exchange pipe in the above two forms, the overall length of the heat exchange pipe can be increased, thereby improving the heat exchange efficiency.

[0039] Further, the passenger cabin heat exchange module 2 further comprises an air conditioner box 24, the air conditioner box 24 comprises a cooling flow channel 241 and a heating flow channel 242, two ends of the cooling flow channel 241 are connected with the first switching piece 4 and the second switching piece 5 respectively, two ends of the heating flow channel 242 are connected with the first switching piece 4 and the second switching piece 5 respectively; when one of the cooling flow channel 241, the heating flow channel 242 and the radiation heat exchange pipeline 23 is opened, the other two of the cooling flow channel 241, the heating flow channel 242 and the radiation heat exchange pipeline 23 are closed. In this way, when the passenger cabin heat exchange module 2 is communicated with the first antifreeze flow channel of the cooler 11 or the second antifreeze flow channel of the water-cooled condenser 12, the antifreeze only enters one of the cooling flow channel 241, the heating flow channel 242 and the radiation heat exchange pipeline 23. When the vehicle is just started to perform refrigeration, the cooling flow channel 241 is communicated with the first antifreeze flow channel of the cooler 11, the antifreeze exchanges heat with the refrigerant after flowing through the cooler 11 to form low-temperature antifreeze, the low-temperature antifreeze is heated by convection heat exchange with the air in the passenger cabin after flowing through the cooling flow channel 241 and then returns to the cooler 11, so as to realize rapid cooling of the passenger cabin. When the temperature in the passenger cabin is stable, the first antifreeze flow channel of the cooler 11 is communicated with the radiation heat exchange pipeline 23, the antifreeze flows through the radiation heat exchange pipeline 23, so as to perform radiation heat exchange with the passenger cabin. When the vehicle is just started to perform heating, the heating flow channel 242 is communicated with the second antifreeze flow channel of the water-cooled condenser 12, the antifreeze exchanges heat with the refrigerant after flowing through the water-cooled condenser 12 to form high-temperature antifreeze, the high-temperature antifreeze is cooled by convection heat exchange with the air in the passenger cabin after flowing through the heating flow channel 242 and then returns to the water-cooled condenser 12, so as to realize rapid heating of the passenger cabin. When the temperature in the passenger cabin is stable, the second antifreeze flow channel of the water-cooled condenser 12 is communicated with the radiation heat exchange pipeline 23, the antifreeze flows through the radiation heat exchange pipeline 23, so as to perform radiation heat exchange with the passenger cabin.

[0040] In addition, the vehicle air conditioning system further comprises a cabin-outside heat exchange module 3, the cabin-outside heat exchange module 3 comprises a cabin-outside antifreeze pipeline 31 and a heat exchanger 32, the heat exchanger 32 is arranged on the cabin-outside antifreeze pipeline 31, two ends of the cabin-outside antifreeze pipeline 31 are connected with the first switching piece 4 and the second switching piece 5 respectively; when the passenger cabin heat exchange module 2 is communicated with the first antifreeze flow channel of the cooler 11, the second antifreeze flow channel of the water-cooled condenser 12 is communicated with the cabin-outside antifreeze pipeline 31, when the passenger cabin heat exchange module 2 is communicated with the second antifreeze flow channel of the water-cooled condenser 12, the first antifreeze flow channel of the cooler 11 is communicated with the cabin-outside antifreeze pipeline 31.

[0041] Optionally, the switching between the above-mentioned various pipelines can be realized by valves, such as Figure 1As shown, the first switching member 4 can be a four-way valve, and the second switching member 5 can be a five-way valve. The vehicle air conditioning system further comprises two three-way valves 6. The three interfaces of the first three-way valve 6 are connected with the first connecting port 41 of the first switching member 4, the first end of the second antifreeze liquid flow channel of the water-cooled condenser 12, and the first end of the heating flow channel 242, respectively. The three interfaces of the second three-way valve 6 are connected with the fourth connecting port 44 of the first switching member 4, the first end of the cooling flow channel 241, and the first connecting pipeline 21, respectively. The second connecting port 42 of the first switching member 4 is connected with the first end of the first antifreeze liquid flow channel of the cooler 11. The third connecting port 43 of the first switching member 4 is connected with the first end of the out-of-cabin antifreeze liquid pipeline 31. The first connecting port 51 of the second switching member 5 is connected with the second end of the second antifreeze liquid flow channel of the water-cooled condenser 12. The second connecting port 52 of the second switching member 5 is connected with the second end of the first antifreeze liquid flow channel of the cooler 11. The third connecting port 53 of the second switching member 5 is connected with the second end of the out-of-cabin antifreeze liquid pipeline 31. The second connecting pipeline 22 and the second end of the cooling flow channel 241 are both connected with the fourth connecting port 54 of the second switching member 5. The fifth connecting port 55 of the second switching member 5 is connected with the second end of the heating flow channel 242. The switching of different modes can be realized by the cooperation of the first switching member 4, the second switching member 5, and the two three-way valves 6.

[0042] It should be noted that the form of the valve used in the vehicle air conditioning system of the present application is not limited to Figure 1 the form shown in the above embodiment. The vehicle air conditioning system can also use other valve combinations that can realize the switching of the flow modes of the antifreeze liquid in the just-starting refrigeration mode, the heating mode, the just-starting refrigeration mode, and the heating mode.

[0043] When the vehicle is in the just-starting refrigeration mode, as shown in Figure 2 the cooling flow channel 241 is connected with the first antifreeze liquid flow channel of the cooler 11, and the out-of-cabin antifreeze liquid pipeline 31 is connected with the second antifreeze liquid flow channel of the water-cooled condenser 12. The refrigerant circulates in the refrigerant circuit 1. Specifically, the high-temperature and high-pressure refrigerant discharged by the compressor 13 is cooled and condensed into a supercooled state by the water-cooled condenser 12, and then enters the cooler 11 to absorb heat after being throttled and depressurized by the expansion valve 14 into low-temperature and low-pressure refrigerant, and then returns to the compressor 13, thereby completing a complete cycle. In the passenger cabin heat exchange module 2, the antifreeze liquid exchanges heat with the refrigerant in the cooler 11 to form low-temperature antifreeze liquid. The low-temperature antifreeze liquid flowing out of the cooler 11 is heated by convection heat exchange with the air in the passenger cabin when flowing through the cooling flow channel 241, and then returns to the cooler 11. In this way, the rapid cooling of the passenger cabin is realized by convection heat exchange.

[0044] After the temperature in the passenger compartment stabilizes, the two ends of the first antifreeze liquid flow channel of the cooler 11 are connected to the first connecting pipe 21 and the second connecting pipe 22 respectively, and the antifreeze liquid pipe 31 outside the cabin is connected to the second antifreeze liquid flow channel of the water-cooled condenser 12. At this time, the refrigerant circuit 1 continues the refrigeration cycle. In the passenger compartment heat exchange module 2, the low-temperature antifreeze liquid flowing out of the cooler 11 flows through the first connecting pipe 21, the radiation heat exchange pipe 23 and the second connecting pipe 22 and returns to the cooler 11. When the low-temperature antifreeze liquid flows through the radiation heat exchange pipe 23, the passenger compartment is cooled by radiation heat exchange to maintain the temperature in the passenger compartment, thereby ensuring the uniformity of the temperature in the passenger compartment.

[0045] When the vehicle is in heating mode after starting, Figure 3 As shown, the antifreeze liquid pipeline 31 outside the cabin is connected to the first antifreeze liquid flow channel of the cooler 11, and the heating flow channel 242 is connected to the second antifreeze liquid of the water-cooled condenser 12. A heating cycle is performed in the refrigerant circuit 1. In the passenger compartment heat exchange module 2, the antifreeze liquid exchanges heat with the refrigerant in the water-cooled condenser 12 to form a high-temperature antifreeze liquid. When the high-temperature antifreeze liquid flows out of the water-cooled condenser 12 and flows through the heating flow channel 242, it is cooled by convection heat exchange with the air in the passenger compartment and then returns to the water-cooled condenser 12. In this way, rapid heating of the passenger compartment is achieved through convection heat exchange.

[0046] When the temperature in the passenger compartment is stable, the two ends of the second antifreeze liquid flow channel of the water-cooled condenser 12 are connected to the first connecting pipe 21 and the second connecting pipe 22 respectively, and the antifreeze liquid pipe 31 outside the cabin is connected to the first antifreeze liquid flow channel of the cooler 11. At this time, the refrigerant circuit 1 continues the heating cycle. In the passenger compartment heat exchange module 2, the high-temperature antifreeze liquid flowing out of the water-cooled condenser 12 flows through the first connecting pipe 21, the radiation heat exchange pipe 23, and the second connecting pipe 22 and returns to the water-cooled condenser 12. When the high-temperature antifreeze liquid flows through the radiation heat exchange pipe 23, it heats the passenger compartment by radiation heat exchange, thereby maintaining the temperature in the passenger compartment and ensuring the uniformity of the temperature in the passenger compartment.

[0047] It should be noted that in order to clearly show the flow direction of the antifreeze liquid, Figure 2 and Figure 3 Part of the structure of the vehicle air conditioning system has been simplified.

[0048] According to another aspect of the present application, a vehicle is provided, which includes the above-mentioned vehicle air-conditioning system. The vehicle can be a fuel vehicle or an electric vehicle. The vehicle has the same technical effects as the above-mentioned vehicle air-conditioning system, which will not be repeated here.

[0049] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle air conditioning system, installed on a vehicle, characterized in that: The vehicle air conditioning system includes a refrigerant circuit, a passenger compartment heat exchange module, a first switching element, and a second switching element. The refrigerant circuit includes a cooler and a water-cooled condenser. The cooler includes a first refrigerant flow channel and a first antifreeze flow channel. The water-cooled condenser includes a second refrigerant flow channel and a second antifreeze flow channel. Both ends of the first refrigerant flow channel are respectively connected to both ends of the second refrigerant flow channel. The two ends of the passenger compartment heat exchange module are respectively connected to the first switching component and the second switching component, the two ends of the first antifreeze fluid flow channel are respectively connected to the first switching component and the second switching component, and the two ends of the second antifreeze fluid flow channel are respectively connected to the first switching component and the second switching component. The first switching component and the second switching component can enable the passenger compartment heat exchange module to communicate with the first antifreeze fluid flow channel or the second antifreeze fluid flow channel. The passenger compartment heat exchange module includes a radiation heat exchange pipe, which is located in the passenger compartment of the vehicle.

2. The vehicle air conditioning system according to claim 1, characterized in that: The passenger compartment heat exchange module further includes an air conditioning box, the air conditioning box including a cooling flow channel and a heating flow channel, the two ends of the cooling flow channel are respectively connected to the first switching member and the second switching member, and the two ends of the heating flow channel are respectively connected to the first switching member and the second switching member; When one of the cooling channel, the heating channel and the radiation heat exchange pipe is opened, the other two of the cooling channel, the heating channel and the radiation heat exchange pipe are closed.

3. The vehicle air conditioning system according to claim 1, characterized in that: The vehicle air conditioning system further includes an off-cabin heat exchange module, the off-cabin heat exchange module including an off-cabin antifreeze liquid pipeline and a heat exchanger, the heat exchanger being disposed on the off-cabin antifreeze liquid pipeline, and the two ends of the off-cabin antifreeze liquid pipeline being connected to the first switching member and the second switching member, respectively; When the passenger compartment heat exchange module is connected to the first antifreeze fluid flow channel, the second antifreeze fluid flow channel is connected to the antifreeze fluid pipeline outside the cabin. When the passenger compartment heat exchange module is connected to the second antifreeze fluid flow channel, the first antifreeze fluid flow channel is connected to the antifreeze fluid pipeline outside the cabin.

4. The vehicle air conditioning system according to claim 1, characterized in that: The passenger compartment heat exchange module also includes a first connecting pipe and a second connecting pipe. The first connecting pipe, the radiation heat exchange pipe and the second connecting pipe are connected in sequence. The first connecting pipe is connected to the first switching component, and the second connecting pipe is connected to the second switching component.

5. The vehicle air conditioning system according to claim 4, characterized in that: The radiation heat exchange pipe includes two sets of heat exchange pipes, both ends of which are respectively connected to the first connecting pipe and the second connecting pipe. The two heat exchange pipes are connected in parallel, and part of one heat exchange pipe is located at the bottom of the passenger compartment, and part of the other heat exchange pipe is located at the top of the passenger compartment.

6. The vehicle air conditioning system according to claim 1, characterized in that: The vehicle air-conditioning system also includes a compressor, and the refrigerant circuit includes a first connecting pipe and a second connecting pipe. The first connecting pipe, the second refrigerant flow channel, the second connecting pipe, and the first refrigerant flow channel are connected in sequence. The end of the second refrigerant flow channel facing away from the first connecting pipe is connected to the second connecting pipe, and the compressor is arranged on the first connecting pipe.

7. The vehicle air conditioning system according to claim 5, characterized in that: The heat exchange tube includes a plurality of straight sections, which are arranged at intervals. Two connected straight sections are connected by a bending section, and the two straight sections located at the edge are respectively connected to the first connecting pipe and the second connecting pipe.

8. The vehicle air conditioning system according to claim 5, characterized in that: The heat exchange tube includes a plurality of straight sections, the plurality of straight sections are parallel, two ends of any straight section are respectively connected to the first connecting pipe and the second connecting pipe, and the plurality of straight sections are connected in parallel.

9. The vehicle air conditioning system according to claim 6, characterized in that: The vehicle air conditioning system further includes an expansion valve, which is arranged on the second connecting pipe.

10. A vehicle, characterized in that: The vehicle includes the vehicle air conditioning system according to any one of claims 1 to 9.

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