CN221698428U - Air conditioning system of extended range electric automobile and extended range electric automobile - Google Patents

Abstract

The present disclosure provides an air conditioning system of an extended range electric vehicle and an extended range electric vehicle, the air conditioning system comprises a refrigeration unit and a heating unit, the refrigeration unit comprises a compressor and a refrigeration assembly, the compressor is connected with the refrigeration assembly, and the refrigeration assembly is at least partially positioned in a cab of the vehicle; the heating unit comprises a heater and a warm air water core, the heater is connected with the warm air water core at intervals in the cab, the heater is electrically connected with the driving battery, a water inlet and a water outlet of the warm air water core are respectively communicated with a cooling system of an engine of the automobile, so that cooling liquid after cooling the engine is introduced into the warm air water core, and the warm air water core is used for supplying heat to the cab through the cooling liquid after cooling the engine. The air conditioning system provided by the disclosure can reduce the energy consumption of the driving battery and improve the energy utilization rate.

Description

Air conditioning system for extended-range electric vehicle and extended-range electric vehicle

Technical Field

The present disclosure relates to the field of electric vehicle air conditioning, and in particular to an air conditioning system for an extended-range electric vehicle and the extended-range electric vehicle.

Background Art

In layman's terms, an extended-range electric vehicle is an electric vehicle with an additional power engine installed. When the power of the drive battery in the extended-range electric vehicle is low, the engine can be started to charge the drive battery.

In the related art, the air conditioning system of the extended-range electric vehicle mainly follows the air conditioning system of the pure electric vehicle. The air conditioning system of the pure electric vehicle includes a refrigeration unit and a heating unit. The refrigeration unit uses a driving battery to drive the compressor in the refrigeration unit to work, so that the compressor can compress the heat exchange medium and then blow cold air into the cab through the refrigeration component. When heating, the heating unit is started, and the heater in the heating unit is driven by the driving battery to heat the cab.

However, in the above air-conditioning systems, whether cooling or heating, it is achieved by driving the corresponding components or devices through the driving battery, which makes the driving battery consume a lot of energy.

Utility Model Content

The embodiment of the present disclosure provides an air conditioning system for an extended-range electric vehicle and an extended-range electric vehicle, which can reduce the energy consumption of a driving battery and improve energy utilization. The technical solution is as follows:

An embodiment of the present disclosure provides an air-conditioning system for an extended-range electric vehicle, the extended-range electric vehicle comprising a driving battery, an engine and a cooling system, the engine being connected to the driving battery, and the cooling system being connected to the engine; the air-conditioning system comprising a refrigeration unit and a heating unit, the refrigeration unit comprising a compressor and a refrigeration assembly, the compressor being connected to the refrigeration assembly, the compressor being connected outside the cab of the vehicle, and the refrigeration assembly being at least partially located inside the cab of the vehicle; the heating unit comprising a heater and a warm air water core, the heater and the warm air water core being connected in the cab at intervals, the heater being electrically connected to the driving battery for supplying heat to the cab, a water inlet and a water outlet of the warm air water core being respectively connected to the cooling system of the engine of the vehicle, so as to introduce the coolant after cooling the engine into the warm air water core, and the warm air water core being used to supply heat to the cab by the coolant after cooling the engine.

In another implementation of the present disclosure, the heater water core includes a heater core, a water inlet connecting pipe and a water outlet connecting pipe. The heater core is located in the cab and connected to the indoor unit in the refrigeration assembly. The heater core has a circulation channel for the flow of coolant. One end of the water inlet connecting pipe is connected to the water inlet of the heater core, and the other end of the water inlet connecting pipe is connected to the cooling system. One end of the water outlet connecting pipe is connected to the water outlet of the heater core, and the other end of the water outlet connecting pipe is connected to the cooling system.

In yet another implementation of the present disclosure, the heater core is a flat cubic structure.

In yet another implementation of the present disclosure, the heater is a plate-type heater, and the heater is stacked and arranged adjacent to the warm air core.

In another implementation of the present disclosure, the heater core includes a first side tube, a second side tube and a plurality of intermediate tubes, the first side tube and the second side tube are arranged opposite to and in parallel, the first side tube is connected to the water inlet connecting tube, and the second side tube is connected to the water outlet connecting tube; the plurality of intermediate tubes are stacked and spaced apart along the axial direction of the first side tube and are located between the first side tube and the second side tube, and both ends of each of the intermediate tubes are respectively connected to the first side tube and the second side tube; the axial direction of the first side tube is perpendicular to the stacking direction of the heater and the heater core.

In another implementation of the present disclosure, the first side tube and the second side tube are respectively provided with slots spaced apart along their own axial directions; the plurality of intermediate tubes are flat tube bodies, and both ends of the intermediate tubes are respectively located in corresponding slots.

In another implementation of the present disclosure, the warm air water core also includes a plurality of spacers, a portion of the plurality of spacers are located in the first side tube along the axial direction of the first side tube, and another portion of the plurality of spacers are located in the second side tube along the axial direction of the second side tube, and the spacers have a first through hole or a second through hole, and a flow area of the first through hole is different from a flow area of the second through hole.

In yet another implementation of the present disclosure, one of two adjacent spacers is the first through hole, and the other is the second through hole.

In another implementation of the present disclosure, the heater core is an aluminum structural member.

In another implementation of the present disclosure, there is also provided an extended-range electric vehicle, which includes a vehicle body and an air-conditioning system, wherein the air-conditioning system is connected to the vehicle body and is the air-conditioning system described above.

The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:

When the air conditioning system provided by the embodiment of the present disclosure is used in an extended-range electric vehicle, since the heating unit in the air conditioning system includes both a heater and a warm air water core, and the heater is electrically connected to the driving battery of the vehicle, and the warm air water core is connected to the cooling system of the engine, heat can be supplied to the cab through at least one of the heater or the warm air water core. That is, when the vehicle is in the extended-range mode, the engine starts to work and the engine charges the driving battery. At this time, the coolant with a higher temperature after cooling in the cooling system can flow into the warm air water core, and the warm air water core can continuously supply heat to the cab. When the vehicle is in the non-extended-range mode, the vehicle is driven by the driving battery and the engine is not working. At this time, the heater can supply heat to the cab under the drive of the driving battery.

It can be seen that in the above air-conditioning system, since the coolant after cooling the engine can be introduced into the heater water core to provide heat to the cab when the engine is working, it can avoid the drive battery driving the heater to provide heating in this mode (the engine working mode, that is, the extended-range mode), thereby reducing the energy consumption of the drive battery and greatly improving energy utilization.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of a framework of an air conditioning system provided by an embodiment of the present disclosure;

FIG2 is a schematic diagram of the structure of an indoor unit provided in an embodiment of the present disclosure;

FIG3 is a partially exploded schematic diagram of FIG2 ;

FIG4 is a schematic structural diagram of a heater core provided in an embodiment of the present disclosure;

FIG5 is a schematic diagram of the principle of an air conditioning system provided by an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of the structure of an outdoor unit provided in an embodiment of the present disclosure.

The symbols in the figure mean the following:

1. Refrigeration unit; 11. Compressor; 12. Refrigeration assembly; 121. Outdoor unit; 1211. Outdoor housing; 1212. Condenser; 1213. Condensing fan; 122. Indoor unit; 1221. Indoor housing; 1222. Evaporator; 1223. Evaporating fan; 123. Expansion valve; 1201. Air outlet; 1202. Return air outlet;

2. Heating unit; 21. Heater; 22. Warm air water core; 221. Warm air core; 2211. First side pipe; 2212. Second side pipe; 2213. Middle pipe; 2214. Spacer; 222. Water inlet connecting pipe; 223. Water outlet connecting pipe;

3. Drying tank.

DETAILED DESCRIPTION

In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

The disclosed embodiment provides an extended-range electric vehicle, which includes a vehicle body, an air-conditioning system, a driving battery, an engine, and a cooling system. The air-conditioning system is connected to the vehicle body, and the air-conditioning system is the air-conditioning system described below. The engine is connected to the driving battery, and both are connected to the vehicle body. The engine is used to charge the driving battery, the cooling system is connected to the vehicle body and to the engine, and the cooling system is used to cool the engine. The cooling system is generally a water cooling system, and the coolant in the cooling system is cooling water. The above extended-range electric vehicle has the same beneficial effects as mentioned above, which will not be repeated here.

In addition, an embodiment of the present disclosure provides an air-conditioning system for an extended-range electric vehicle. As shown in FIG1 , the air-conditioning system includes a refrigeration unit 1 and a heating unit 2. The refrigeration unit 1 includes a compressor 11 and a refrigeration assembly 12. The compressor 11 is connected to the refrigeration assembly 12. The compressor 11 is connected outside the cab of the vehicle, and the refrigeration assembly 12 is at least partially located inside the cab of the vehicle.

The heating unit 2 includes a heater 21 and a warm air water core 22. The heater 21 and the warm air water core 22 are connected in the cab at intervals. The heater 21 is electrically connected to the drive battery for supplying heat to the cab. The water inlet and the water outlet of the warm air water core 22 are respectively connected to the cooling system of the engine of the automobile so that the coolant after cooling the engine is introduced into the warm air water core 22. The warm air water core 22 is used to supply heat to the cab through the coolant after cooling the engine.

When the air conditioning system provided by the embodiment of the present disclosure is used in an extended-range electric vehicle, since the heating unit 2 in the air conditioning system includes both a heater 21 and a warm water core 22, and the heater 21 is electrically connected to the driving battery of the vehicle, and the warm water core 22 is connected to the cooling system of the engine, the cab can be heated by at least one of the heater 21 or the warm water core 22. For example, when the vehicle is in the extended-range mode, the engine starts to work and the engine charges the driving battery. At this time, the temperature of the coolant in the cooling system after cooling the engine is high, and the coolant with a higher temperature can flow into the warm water core 22, and the warm water core 22 can continuously supply heat to the cab. When the vehicle is in the non-extended-range mode, the vehicle is driven by the driving battery and the engine is not working. At this time, the heater 21 can supply heat to the cab under the drive of the driving battery.

It can be seen that in the above air-conditioning system, since the coolant after cooling the engine can be introduced into the warm air water core 22 to provide heat to the cab when the engine is working, it can avoid the driving battery driving the heater 21 to provide heating in this mode, thereby reducing the energy consumption of the driving battery and greatly improving energy utilization.

FIG2 is a schematic diagram of the structure of the indoor unit provided by the embodiment of the present disclosure. In conjunction with FIG2, optionally, the warm air water core 22 includes a warm air core 221, a water inlet connecting pipe 222, and a water outlet connecting pipe 223. The warm air core 221 is located in the cab and connected to the indoor unit in the refrigeration assembly 12. The warm air core 221 has a circulation channel for the coolant to flow. One end of the water inlet connecting pipe 222 is connected to the water inlet of the warm air core 221, and the other end of the water inlet connecting pipe 222 is connected to the cooling system. One end of the water outlet connecting pipe 223 is connected to the water outlet of the warm air core 221, and the other end of the water outlet connecting pipe 223 is connected to the cooling system.

In the above implementation, the heater core 221 has a circulation channel for the coolant to flow, so the coolant can supply heat to the cab during the flow through the circulation channel. The water inlet connecting pipe 222 is used to introduce the coolant with a higher temperature (generally 70-90°) after cooling the engine in the cooling system into the heater core 221, and the water outlet connecting pipe 223 is used to introduce the coolant in the heater core 221 back into the cooling system.

Exemplarily, the water inlet connecting pipe 222 and the water outlet connecting pipe 223 can both be high temperature resistant (above 200°) hoses. This facilitates the arrangement of the water inlet connecting pipe 222 and the water outlet connecting pipe 223 in the vehicle body. For example, the water inlet connecting pipe 222 and the water outlet connecting pipe 223 are both rubber hoses.

FIG3 is a partially exploded schematic diagram of FIG2 . In conjunction with FIG3 , optionally, the warm air core 221 is a flat cubic structural member.

In the above implementation, the above arrangement can increase the surface area of the heater core 221 within a limited space, thereby increasing the heat exchange rate between the heater core 221 and the cab.

Optionally, the heater 21 is a PTC (Positive Temperature Coefficient) plate heater, and the heater 21 and the warm air core 221 are stacked and arranged adjacent to each other.

In the above implementation, the heater 21 is configured as a plate-type heater, which can also allow the heater 21 to have a large surface area within a limited space, thereby increasing the heat exchange rate between the heater 21 and the cab.

The heater 21 and the warm air core 221 are stacked to reduce the space occupied by the two, thereby reducing the occupied volume of the air conditioning system.

FIG4 is a schematic diagram of the structure of the warm air core provided by the embodiment of the present disclosure. In conjunction with FIG4, optionally, the warm air core 221 includes a first side tube 2211, a second side tube 2212 and a plurality of intermediate tubes 2213. The first side tube 2211 and the second side tube 2212 are arranged oppositely and in parallel. The first side tube 2211 is connected to the water inlet connecting tube 222, and the second side tube 2212 is connected to the water outlet connecting tube 223. The plurality of intermediate tubes 2213 are stacked and spaced between the first side tube 2211 and the second side tube 2212 along the axial direction of the first side tube 2211, and the two ends of each intermediate tube 2213 are respectively connected to the first side tube 2211 and the second side tube 2212. The axial direction of the first side tube 2211 is perpendicular to the stacking direction of the heater 21 and the warm air core 221.

In the above implementation, the heater core 221 is configured as the above structure, and the coolant after cooling the engine can be introduced through the first side pipe 2211, and the coolant can be returned to the cooling system through the second side pipe 2212. The plurality of intermediate pipes 2213 are stacked, so that the surface area of the heater core 221 can be increased, thereby improving the heat exchange efficiency of the heater core 221.

Of course, the above heater core 221 may also be other structures, such as the first side tube 2211 and the second side tube 2212 are located on the same side of the plurality of intermediate tubes 2213, and the intermediate tubes 2213 are bent structures. As long as the heater core 221 can be arranged conveniently and the internal fluid can have a high heat dissipation effect, the embodiments of the present disclosure are not limited to this.

The first side tube 2211 and the second side tube 2212 are respectively provided with slots at intervals along their own axis directions. The plurality of middle tubes 2213 are flat tube bodies, and both ends of the middle tubes 2213 are respectively located in corresponding slots.

In the above implementation, the slot not only facilitates the connection of the middle tube 2213 to the first side tube 2211 and the second side tube 2212, but also enables the interior of the middle tube 2213 to communicate with the first side tube 2211 and the second side tube 2212. In addition, the middle tube 2213 is configured as a flat tube body, which is not only convenient for arrangement, but also increases the surface area of the middle tube 2213, thereby improving the heat exchange efficiency of the heater core 221.

Optionally, the warm air water core 22 also includes a plurality of spacers 2214, a portion of the plurality of spacers 2214 are located in the first side tube 2211 along the axial direction of the first side tube 2211, and another portion is located in the second side tube 2212 along the axial direction of the second side tube 2212, the spacer 2214 has a first through hole or a second through hole, and the flow area of the first through hole is different from the flow area of the second through hole.

In the above implementation, since a plurality of spacers 2214 are arranged inside the heater water core 22, and a plurality of spacers 2214 have first through holes or second through holes with different flow areas, when the coolant after cooling the engine enters the first side pipe 2211, the coolant with a higher temperature will not be completely blocked by the spacer 2214, but will also flow from the first through hole or the second through hole along the first side pipe, so as to reduce the flow resistance of the coolant and adjust the flow pattern of the coolant, which can help each intermediate pipe 2213 to obtain a uniform fluid, thereby ultimately improving the heat exchange efficiency of the heater water core 22.

Optionally, one of two adjacent spacers 2214 is a first through hole, and the other is a second through hole.

In the above implementation, one of the two adjacent spacers 2214 is a first through hole, and the other is a second through hole, so that the first through hole and the second through hole are arranged alternately. When the coolant flows, it continuously passes through the through holes of different areas for throttling, so that the coolant can continuously change the flow pattern, thereby improving the distribution uniformity of the coolant in the intermediate tube 2213, thereby improving the heat exchange efficiency of the heater core 221.

Optionally, the heater core 221 is an aluminum structural member, which can make the heat conduction efficiency of the heater core 221 faster, thereby improving the heat exchange efficiency of the heater core 221.

FIG5 is a schematic diagram of the principle of the air conditioning system provided by the embodiment of the present disclosure. In conjunction with FIG5, optionally, the refrigeration assembly 12 includes an outdoor unit 121, an indoor unit 122, and an expansion valve 123. The outdoor unit 121 is located outside the cab and is connected to the body of the car. The indoor unit 122 is connected inside the cab. The indoor unit 122 is connected to the outdoor unit 121 to achieve communication between the indoor unit 122 and the outdoor unit 121. The expansion valve 123 is located inside the cab and is connected to the indoor unit 122 and the outdoor unit 121, respectively.

Referring again to FIG. 2 and FIG. 3 , the indoor unit 122 includes an indoor housing 1221, an evaporator 1222, and an evaporation fan 1223. The indoor housing 1221 is connected to the top wall or the side wall in the cab. The evaporator 1222 is located in the indoor housing 1221 and connected to the indoor housing 1221. The evaporation fan 1223 is located in the indoor housing 1221 and is located on one side of the evaporator 1222. The evaporation fan 1223 is connected to the indoor housing 1221. The evaporator 1222 is connected to the compressor 11 and the expansion valve 123, respectively.

The warm air core 221 and the heater 21 are both connected to the indoor shell 1221 , and the warm air core 221 and the heater 21 are located between the evaporator 1222 and the evaporation fan 1223 , and the heater 21 is located between the warm air core 221 and the evaporator 1222 .

In the above implementation, the indoor housing 1221 is used to provide an installation base for the evaporator 1222 and the evaporation fan 1223. The evaporator 1222 is used to provide a flow carrier for the heat exchange medium. The evaporation fan 1223 is used to blow air to the evaporator 1222 to improve the heat exchange efficiency of the evaporator 1222.

In this embodiment, the evaporator 1222 is a bent fin heat exchanger. The evaporation fan 1223 is located in the bent notch of the bent fin heat exchanger. The evaporation fan 1223 is arranged in the bent notch of the bent fin heat exchanger, so that the temperature change generated by the heat exchange medium during the heat exchange process can be used with maximum efficiency, thereby improving the working efficiency of the air conditioning system.

The evaporation fan 1223 is a centrifugal fan. In this way, the low noise characteristic of the centrifugal fan can be utilized to reduce the operating noise generated by the evaporation fan 1223.

Exemplarily, the evaporator 1222 may be a bent copper tube fin heat exchanger, which can further improve the heat exchange efficiency of the bent fin heat exchanger.

Optionally, the indoor shell 1221 has an air outlet 1201 and an air return outlet 1202 connected to the cab.

In the above implementation, an air outlet 1201 and an air return outlet 1202 are arranged on the indoor shell 1221 , so that heat can be exchanged between the outside and the cab through the air outlet 1201 , and air can be blown into the cab through the air return outlet 1202 .

In addition, the indoor shell 1221 is also provided with a defrost air vent, etc., which is used to blow air to the outdoor unit to prevent the copper pipes and the like in the outdoor unit from frosting.

FIG6 is a schematic diagram of the structure of the outdoor unit provided in the embodiment of the present disclosure. In conjunction with FIG6, in the present embodiment, the outdoor unit 121 includes an outdoor housing 1211, a condenser 1212 and a condensing fan 1213. The outdoor housing 1211 is located outside the cab and connected to the body of the car. The condenser 1212 is connected to the outdoor housing 1211. The condensing fan 1213 is embedded in the side wall of the outdoor housing 1211 and communicated with the outside. The condenser 1212 is connected to the compressor 11 and the expansion valve 123, respectively.

The outdoor housing 1211 is used to provide an installation base for the condenser 1212 and the condensing fan 1213. The condenser 1212 is used to provide a flow carrier for the heat exchange medium. The condensing fan 1213 is used to blow air to the condenser 1212 to improve the heat exchange efficiency of the condenser 1212.

Exemplarily, the condensing fan 1213 is an axial flow fan. In this way, the good dustproof performance of the axial flow fan can be utilized to prevent the external dust from affecting the performance of the condensing fan 1213.

Combined with Figure 5 again, the refrigeration component 12 is set to the above structure, so that when the extended-range electric vehicle needs refrigeration, the compressor 11 starts working, and the compressor 11 compresses the low-temperature and low-pressure heat exchange medium in the evaporator 1222 into a high-temperature and high-pressure heat exchange medium. The high-temperature and high-pressure heat exchange medium enters the condenser 1212 to exchange heat with the ambient air outside, and is converted into a high-pressure and normal-temperature heat exchange medium. The high-pressure and normal-temperature heat exchange medium enters the expansion valve 123 for throttling and pressure reduction, and is converted into a low-temperature and low-pressure heat exchange medium. After entering the evaporator 1222, the low-temperature and low-pressure heat exchange medium exchanges heat with the ambient air in the cab to reduce the temperature in the cab, and at the same time is converted into a low-pressure and normal-temperature heat exchange medium. The low-pressure and normal-temperature heat exchange medium generally enters the compressor 11 again after being processed by the gas-liquid separator for circulating refrigeration.

It should be noted that the heat exchange medium can be a refrigerant. A refrigerant is a substance that easily absorbs heat to become a gas and easily releases heat to become a liquid, such as Freon, which can effectively improve the heat exchange efficiency of the heat exchange medium, thereby improving the working efficiency of the air conditioning system. Of course, in order to prevent air pollution caused by the volatilization of the refrigerant, the refrigerant can be pre-charged.

6 , optionally, the air conditioning system further includes a drying tank 3 , and the drying tank 3 is integrated with the condenser 1212 .

In the above implementation, the drying tank 3 is used to dry the refrigerant and the like.

The following briefly introduces the working process of the air conditioning system provided by the embodiment of the present disclosure:

When the cab needs to be cooled, the car's driving battery supplies power to the compressor. After the refrigerant is compressed by the compressor, the compressor 11 compresses the low-temperature and low-pressure heat exchange medium in the evaporator 1222 into a high-temperature and high-pressure heat exchange medium. The high-temperature and high-pressure heat exchange medium enters the condenser 1212 to exchange heat with the ambient air outside, and is converted into a high-pressure and normal-temperature heat exchange medium. The high-pressure and normal-temperature heat exchange medium enters the expansion valve 123 for throttling and pressure reduction, and is converted into a low-temperature and low-pressure heat exchange medium. After entering the evaporator 1222, the low-temperature and low-pressure heat exchange medium exchanges heat with the ambient air in the cab to reduce the temperature in the cab, and is simultaneously converted into a low-pressure and normal-temperature heat exchange medium. The low-pressure and normal-temperature heat exchange medium generally passes through the gas-liquid separator and then enters the compressor 11 again for circulating refrigeration.

When the cab of the car needs to be heated, if the engine is working, the high-temperature coolant after cooling the engine enters the heater core 221 along the water inlet connection pipe 222 under the action of the cooling water pump of the cooling system, and the high-temperature coolant in the heater core 221 exchanges heat with the air in the cab under the action of the evaporating fan 1223, thereby heating the cab. If the engine stops working, the heater 21 in the heating unit 2 is started to directly heat the cab.

The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims (10)

1. An air conditioning system for an extended-range electric vehicle, characterized in that the extended-range electric vehicle comprises a driving battery, an engine and a cooling system, the engine is connected to the driving battery, and the cooling system is connected to the engine; The air conditioning system comprises a refrigeration unit (1) and a heating unit (2), the refrigeration unit (1) comprises a compressor (11) and a refrigeration component (12), the compressor (11) is connected to the refrigeration component (12), the compressor (11) is connected outside the driving room of the vehicle, and the refrigeration component (12) is at least partially located inside the driving room of the vehicle; The heating unit (2) comprises a heater (21) and a warm air water core (22); the heater (21) and the warm air water core (22) are connected in the cab at an interval; the heater (21) is electrically connected to the drive battery and is used to supply heat to the cab; a water inlet and a water outlet of the warm air water core (22) are respectively connected to a cooling system of the engine of the vehicle so as to introduce coolant after cooling the engine into the warm air water core (22); the warm air water core (22) is used to supply heat to the cab through the coolant after cooling the engine. 2. The air conditioning system according to claim 1, characterized in that the warm air water core (22) comprises a warm air core body (221), a water inlet connecting pipe (222) and a water outlet connecting pipe (223), the warm air core body (221) is located in the cab and connected to the indoor unit in the refrigeration assembly (12), and the warm air core body (221) has a circulation channel for the flow of coolant; One end of the water inlet connecting pipe (222) is connected to the water inlet of the heater core (221), and the other end of the water inlet connecting pipe (222) is connected to the cooling system; one end of the water outlet connecting pipe (223) is connected to the water outlet of the heater core (221), and the other end of the water outlet connecting pipe (223) is connected to the cooling system. 3. The air conditioning system according to claim 2 is characterized in that the warm air core (221) is a flat cubic structure. 4. The air conditioning system according to claim 3, characterized in that the heater (21) is a plate heater, and the heater (21) and the warm air core (221) are stacked and arranged adjacent to each other. 5. The air conditioning system according to claim 4, characterized in that the warm air core (221) comprises a first side pipe (2211), a second side pipe (2212) and a plurality of intermediate pipes (2213), the first side pipe (2211) and the second side pipe (2212) are arranged opposite to and in parallel, the first side pipe (2211) is communicated with the water inlet connecting pipe (222), and the second side pipe (2212) is connected with the water outlet connecting pipe (223); The plurality of intermediate tubes (2213) are stacked and spaced apart along the axial direction of the first side tube (2211) and are located between the first side tube (2211) and the second side tube (2212), and both ends of each intermediate tube (2213) are respectively connected to the first side tube (2211) and the second side tube (2212); The axial direction of the first side tube (2211) is perpendicular to the stacking direction of the heater (21) and the warm air core (221). 6. The air conditioning system according to claim 5, characterized in that the first side pipe (2211) and the second side pipe (2212) are respectively provided with slots spaced apart along their own axis directions; The plurality of intermediate tubes (2213) are flat tubes, and both ends of the intermediate tubes (2213) are respectively located in corresponding slots. 7. The air-conditioning system according to claim 5 is characterized in that the warm air water core (22) further comprises a plurality of spacers (2214), a portion of the plurality of spacers (2214) are located in the first side tube (2211) along the axial direction of the first side tube (2211), and another portion of the plurality of spacers are located in the second side tube (2212) along the axial direction of the second side tube (2212), and the spacer (2214) has a first through hole or a second through hole, and a flow area of the first through hole is different from a flow area of the second through hole. 8. The air conditioning system according to claim 7, characterized in that one of the two adjacent spacers (2214) is the first through hole, and the other is the second through hole. 9. The air conditioning system according to any one of claims 2 to 8, characterized in that the warm air core (221) is an aluminum structural component. 10. An extended-range electric vehicle, characterized in that the extended-range electric vehicle comprises a vehicle body and an air-conditioning system, wherein the air-conditioning system is connected to the vehicle body, and the air-conditioning system is the air-conditioning system according to any one of claims 1 to 9.