Air conditioning system and vehicle

Abstract

The invention discloses an air conditioning system and a vehicle, the air conditioning system is used for the vehicle and comprises a first heat exchange system, the first heat exchange system comprises a first heat exchanger, an outer heat exchanger and a first water pump, and the first heat exchanger, the outer heat exchanger and the first water pump form a first loop; the second heat exchange system comprises a second heat exchanger, a heat exchange assembly and a second water pump, and the second heat exchanger, the heat exchange assembly and the second water pump form a second loop; the third heat exchange system comprises a third heat exchanger, a fourth heat exchanger and a compressor, the third heat exchanger, the fourth heat exchanger and the compressor form a third loop, the third heat exchanger is used for exchanging heat with the first heat exchanger, and the fourth heat exchanger is used for exchanging heat with the second heat exchanger. According to the air conditioning system, the refrigeration performance of the passenger compartment is ensured, meanwhile, the use of a refrigerant (R290) in the air conditioning system is reduced, the safety of the air conditioning system is improved, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an air-conditioning system and a vehicle. Background Art

[0002] In the automotive field, the applicability, environmental protection and safety of refrigerants in air-conditioning systems are receiving more and more attention and importance in the industry under the current trend of global warming. The development of a new generation of environmentally friendly refrigerants is also in full swing and has received guidance at the national level. The development of new refrigerants (R290) has developed rapidly. Due to the use of new refrigerants (R290), the air-conditioning system has higher heat exchange efficiency, which is conducive to promoting the thermal management structure of the passenger compartment to develop in the direction of high efficiency, integration and miniaturization. However, the new refrigerant (R290) is currently inflammable and explosive when installed on the whole vehicle, and the cost is relatively high. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an air conditioning system, which reduces the use of refrigerant (R290) in the air conditioning system while ensuring the refrigeration performance of the passenger compartment, improves the safety of the air conditioning system, and reduces the cost.

[0004] The present invention also provides a vehicle, comprising the above-mentioned air-conditioning system.

[0005] An air-conditioning system according to an embodiment of the present invention is used for a vehicle and includes: a first heat exchange system, the first heat exchange system includes a first heat exchanger, an external heat exchanger and a first water pump, the first heat exchanger, the external heat exchanger and the first water pump form a first circuit; a second heat exchange system, the second heat exchange system includes a second heat exchanger, a heat exchange component and a second water pump, the second heat exchanger, the heat exchange component and the second water pump form a second circuit, the heat exchange component includes: a first sub-heat exchanger and a second sub-heat exchanger, the first sub-heat exchanger and the second sub-heat exchanger are connected in parallel; a third heat exchange system, the third heat exchange system includes a third heat exchanger, a fourth heat exchanger and a compressor, the third heat exchanger, the fourth heat exchanger and the compressor form a third circuit, the third heat exchanger is used to exchange heat with the first heat exchanger, and the fourth heat exchanger is used to exchange heat with the second heat exchanger.

[0006] According to the air conditioning system of the embodiment of the present invention, the first heat exchange system includes a first heat exchanger, an external heat exchanger and a first water pump, and the first heat exchanger, the external heat exchanger and the first water pump form a first circuit; the second heat exchange system includes a second heat exchanger, a heat exchange component and a second water pump, and the second heat exchanger, the heat exchange component and the second water pump form a second circuit, and the heat exchange component includes a heat exchange component; the third heat exchange system includes a third heat exchanger, a fourth heat exchanger and a compressor, and the third heat exchanger, the fourth heat exchanger and the compressor form a third circuit, and the third heat exchanger is used to exchange heat with the first heat exchanger, and the fourth heat exchanger is used to exchange heat with the second heat exchanger. The third heat exchange system can be used as a heat transfer bridge between the first heat exchange system and the second heat exchange system, thereby realizing the coupling between the first heat exchange system and the second heat exchange system, thereby reducing the use of refrigerant (R290) in the air conditioning system while ensuring the refrigeration performance of the passenger compartment, improving the safety of the air conditioning system, and reducing the cost.

[0007] In some embodiments of the present invention, the vehicle includes a battery heat exchange system, which includes a fifth heat exchanger, a liquid cooling component and a third water pump, the fifth heat exchanger, the liquid cooling component and the third water pump form a heat exchange circuit, and the heat exchange component also includes: a sixth heat exchanger, the sixth heat exchanger, the first sub-heat exchanger and the second sub-heat exchanger are connected in parallel, and the sixth heat exchanger is used to exchange heat with the fifth heat exchanger.

[0008] In some embodiments of the present invention, the second heat exchange system also includes: a dehumidifier, which is arranged on the windward side of the first sub-heat exchanger and the second sub-heat exchanger, and the dehumidifier has a dehumidification flow path, which is connected in series to the second circuit, and the inlet of the dehumidification flow path is connected to the outlet of the heat exchange component, and the outlet of the dehumidification flow path is connected to the inlet of the second heat exchanger.

[0009] In some embodiments of the present invention, the air-conditioning system further includes: a first connecting flow path, one end of which is connected between the outlet of the first heat exchanger and the inlet of the external heat exchanger through a first three-way valve, the other end of which is connected to the inlet of the heat exchange component, and the first water pump is located between the outlet of the first heat exchanger and the first three-way valve; a second connecting flow path, one end of which is connected to the outlet of the dehumidification flow path, the other end of which is connected to the outlet of the external heat exchanger and the inlet of the first heat exchanger through a second three-way valve, and the first heat exchanger, the first water pump, the heat exchange component and the dehumidifier form a fourth loop.

[0010] In some embodiments of the present invention, a first four-way valve is provided on the first connecting flow path, the first four-way valve is provided between the inlet of the heat exchange component and the first three-way valve, the first four-way valve includes a first port, a second port, a third port and a fourth port, the first port is connected to the first three-way valve, the second port is connected to the inlet of the second sub-heat exchanger, the third port is connected to the inlet of the sixth heat exchanger, the fourth port is connected to the inlet of the first sub-heat exchanger, the first port, the second port, the third port and the fourth port are all connected or the first port is discontinuous with the second port, the third port and the fourth port.

[0011] In some embodiments of the present invention, the air-conditioning system further includes: a third connecting flow path, one end of the third connecting flow path is connected between the outlet of the second heat exchanger and the inlet of the heat exchange component through a third three-way valve, and the other end is connected between the inlet of the external heat exchanger and the outlet of the first heat exchanger, and the second water pump is located between the outlet of the second heat exchanger and the third three-way valve; a fourth connecting flow path, one end of the fourth connecting flow path is connected between the outlet of the external heat exchanger and the inlet of the first heat exchanger, and the other end is connected between the outlet of the heat exchange component and the inlet of the second heat exchanger, and the second heat exchanger, the second water pump, and the external heat exchanger form a fifth loop.

[0012] In some embodiments of the present invention, a second four-way valve is provided on the third connecting flow path, and the second four-way valve is provided between the second water pump and the third three-way valve. The second four-way valve includes a fifth port, a sixth port, a seventh port and an eighth port. The fifth port is connected to the outlet of the second heat exchanger, the sixth port is connected to the inlet of the first sub-heat exchanger, the seventh port is connected to the third three-way valve, the eighth port is connected to the inlet of the sixth heat exchanger, the fifth port, the sixth port, the seventh port and the eighth port are all connected, or the fifth port is connected to the seventh port.

[0013] In some embodiments of the present invention, a third four-way valve is further provided on the third connecting flow path, and the third four-way valve includes a ninth port, a tenth port, an eleventh port and a twelfth port, the ninth port is connected to the inlet of the dehumidification flow path, and the eleventh port is connected to the outlet of the heat exchange component; the third connecting flow path includes a first sub-flow path and a second sub-flow path, one end of the first sub-flow path is connected to the outlet of the second water pump through the third three-way valve, and the other end is connected to the second port, one end of the second sub-flow path is connected to the fourth port, and the other end is connected between the inlet of the external heat exchanger and the outlet of the first heat exchanger, wherein the tenth port is connected to one of the ninth port and the twelfth port, and the eleventh port is connected to the other of the ninth port and the twelfth port, the first heat exchanger, the first water pump, the heat exchange component and the external heat exchanger form a sixth circuit, and the second heat exchanger, the second water pump, and the dehumidifier form a seventh circuit.

[0014] In some embodiments of the present invention, a fourth four-way valve is provided on the fourth connecting flow path, and the fourth four-way valve includes a thirteenth port, a fourteenth port, a fifteenth port and a sixteenth port, the thirteenth port is connected to the inlet of the second heat exchanger, the fourteenth port is connected to the second three-way valve, the fifteenth port is connected to the outlet of the dehumidification flow path, and the sixteenth port is connected to the inlet of the first heat exchanger, wherein the thirteenth port is connected to one of the fourteenth port and the fifteenth port, and the sixteenth port is connected to the other of the fourteenth port and the fifteenth port.

[0015] In some embodiments of the present invention, the air conditioning system further includes: a heater, which is disposed on the first connecting flow path and between the first three-way valve and the inlet of the heat exchange component.

[0016] A vehicle according to an embodiment of the present invention includes the above-mentioned air conditioning system.

[0017] According to the vehicle of the embodiment of the present invention, by setting the above-mentioned air conditioning system, the first heat exchange system includes a first heat exchanger, an external heat exchanger and a first water pump, and the first heat exchanger, the external heat exchanger and the first water pump form a first circuit; the second heat exchange system includes a second heat exchanger, a heat exchange component and a second water pump, and the second heat exchanger, the heat exchange component and the second water pump form a second circuit, and the heat exchange component includes a heat exchange component; the third heat exchange system includes a third heat exchanger, a fourth heat exchanger and a compressor, and the third heat exchanger, the fourth heat exchanger and the compressor form a third circuit, and the third heat exchanger is used to exchange heat with the first heat exchanger, and the fourth heat exchanger is used to exchange heat with the second heat exchanger. The third heat exchange system can be used as a heat transfer bridge between the first heat exchange system and the second heat exchange system, thereby realizing the coupling between the first heat exchange system and the second heat exchange system, thereby reducing the use of refrigerant (R290) in the air conditioning system while ensuring the refrigeration performance of the passenger compartment, improving the safety of the air conditioning system, and reducing the cost.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of an air conditioning system according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of an air conditioning system according to an embodiment of the present invention, wherein the air conditioning system is in a cooling mode, and unconnected lines and components thereon are not shown;

[0022] Figure 3 is a schematic diagram of an air conditioning system according to an embodiment of the present invention, wherein the air conditioning system is in a heating mode, and unconnected lines and components thereon are not shown;

[0023] Figure 4 is a schematic diagram of an air conditioning system according to an embodiment of the present invention, wherein the air conditioning system is in a heating and defrosting and defogging mode, and unconnected lines and components thereon are not shown.

[0024] Reference numerals:

[0025] 10. Air conditioning system;

[0026] 1. First heat exchange system; 11. First heat exchanger; 12. External heat exchanger; 13. First water pump;

[0027] 2. Second heat exchange system; 21. Second heat exchanger; 22. Heat exchange assembly; 221. First sub-heat exchanger; 222. Second sub-heat exchanger; 223. Sixth heat exchanger; 23. Second water pump; 24. Dehumidifier;

[0028] 3. Third heat exchange system; 31. Third heat exchanger; 32. Fourth heat exchanger; 33. Compressor;

[0029] 4. Battery heat exchange system; 41. Fifth heat exchanger; 42. Liquid cooling assembly; 43. Third water pump;

[0030] 5. First connecting flow path; 51. First three-way valve; 52. First four-way valve; 521. First port; 522. Second port; 523. Third port; 524. Fourth port;

[0031] 6. Second connecting flow path; 61. Second three-way valve;

[0032] 7, third connecting flow path; 71, third three-way valve; 72, second four-way valve; 721, fifth port; 722, sixth port; 723, seventh port; 724, eighth port; 73, third four-way valve; 731, ninth port; 732, tenth port; 733, eleventh port; 734, twelfth port;

[0033] 8, fourth connecting flow path; 81, fourth four-way valve; 811, thirteenth port; 812, fourteenth port; 813, fifteenth port; 814, sixteenth port;

[0034] 91. Heater; 92. Expansion pot. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference below Figure 1-Figure 4 An air conditioning system 10 according to an embodiment of the present invention is described.

[0039] like Figure 1-Figure 4 As shown, an air conditioning system 10 according to an embodiment of the present invention is used for a vehicle and includes: a first heat exchange system 1 , a second heat exchange system 2 and a third heat exchange system 3 .

[0040] Specifically, refer to Figure 1-Figure 4 The first heat exchange system 1 includes a first heat exchanger 11, an external heat exchanger 12 and a first water pump 13, and the first heat exchanger 11, the external heat exchanger 12 and the first water pump 13 form a first loop; the second heat exchange system 2 includes a second heat exchanger 21, a heat exchange component 22 and a second water pump 23, and the second heat exchanger 21, the heat exchange component 22 and the second water pump 23 form a second loop; the third heat exchange system 3 includes a third heat exchanger 31, a fourth heat exchanger 32 and a compressor 33, and the third heat exchanger 31, the fourth heat exchanger 32 and the compressor 33 form a third loop, and the third heat exchanger 31 is used to exchange heat with the first heat exchanger 11, and the fourth heat exchanger 32 is used to exchange heat with the second heat exchanger 21. It should be noted that the first heat exchange system 1 is a heating system, and the second heat exchange system 2 is a cooling system.

[0041] It is understandable that in the third heat exchange system 3, the refrigerant is R290 (propane). The refrigerant is R290, so that the heat exchange efficiency is high, the heat exchange effect is good, and the cooling and heating as well as the defrosting and defogging effects of the air-conditioning system 10 are good. In the third heat exchange system 3, the compressor 33 drives the refrigerant to circulate in the third circuit, the third heat exchanger 31 is a condenser, and the third heat exchanger 31 exchanges heat with the first heat exchanger 11, so that the medium in the first heat exchanger 11 is heated, and the fourth heat exchanger 32 is an evaporator, so that the medium in the second heat exchanger 21 is cooled.

[0042] In the cooling mode, in the first heat exchange system 1, in order to make the air-conditioning system 10 safer, the medium can be vehicle coolant, and the water pump drives the coolant to flow in the first circuit. The coolant is heated in the first heat exchanger 11, and the heated coolant exchanges heat with the external environment through the external heat exchanger 12, thereby dissipating the heat of the coolant in the first heat exchange system 1.

[0043] In the cooling mode, in the second heat exchange system 2, in order to make the air-conditioning system 10 safer, the medium can be vehicle coolant, and the water pump drives the coolant to flow in the second circuit. The coolant is cooled in the second heat exchanger 21, and the cooled coolant is cooled by heat exchange with the environment in the vehicle through the heat exchange component 22, thereby realizing cooling of the passenger compartment.

[0044] Therefore, the third heat exchange system 3 can serve as a heat transfer bridge between the first heat exchange system 1 and the second heat exchange system 2, and through the coupling between the first heat exchange system 1 and the second heat exchange system 2, the cooling demand of the passenger compartment is achieved.

[0045] At the same time, the medium in the third heat exchange system 3 is R290, and the medium in the first heat exchange system 1 and the second heat exchange system 2 are both vehicle coolant, that is, part of the medium flowing in the air-conditioning system 10 is a refrigerant (R290) with good heat exchange performance, and part is a vehicle coolant with higher safety performance. Therefore, while ensuring the refrigeration performance of the passenger compartment, the use of the refrigerant (R290) in the air-conditioning system 10 is reduced, the safety of the air-conditioning system 10 is improved, and the cost is reduced.

[0046] In addition, since most of the heat exchange circuits in the passenger compartment are realized through the first circuit and the second circuit, the third heat exchange system 3 only participates in the heat exchange between the first heat exchange system 1 and the second heat exchange system 2, so that the third heat exchange system 3 occupies a small space, thereby further reducing the use of refrigerant (R290) in the third heat exchange system 3, and further improving the safety of the air-conditioning system 10.

[0047] Furthermore, if Figure 1As shown, the air conditioning system 10 also includes an expansion pot 92, which is multiple and respectively connected to the first circuit and the second circuit, so as to achieve pressure balance in the first heat exchange system 1 and the second heat exchange system 2, so that the first heat exchange system 1 and the second heat exchange system 2 can work better.

[0048] Furthermore, if Figure 1-Figure 4 As shown, the heat exchange component 22 includes: a first sub-heat exchanger 221 and a second sub-heat exchanger 222, and the first sub-heat exchanger 221 and the second sub-heat exchanger 222 are connected in parallel; it can be understood that the first sub-heat exchanger 221 and the second sub-heat exchanger 222 can be used to exchange heat with the vehicle interior environment, thereby achieving temperature regulation of the vehicle interior environment.

[0049] The coolant from the second heat exchanger 21 is split and enters the first sub-heat exchanger 221 and the second sub-heat exchanger 222 respectively. The first sub-heat exchanger 221 and the second sub-heat exchanger 222 work simultaneously, wherein the first sub-heat exchanger 221 and the second sub-heat exchanger 222 can be respectively arranged on the left and right sides of the vehicle. Thus, by controlling the different flow rates of the refrigerant entering the first sub-heat exchanger 221 and the second sub-heat exchanger 222, the left and right temperature zone control function of the vehicle can be realized.

[0050] According to the air-conditioning system 10 of the embodiment of the present invention, the first heat exchange system 1 includes a first heat exchanger 11, an external heat exchanger 12 and a first water pump 13, and the first heat exchanger 11, the external heat exchanger 12 and the first water pump 13 form a first circuit; the second heat exchange system 2 includes a second heat exchanger 21, a heat exchange component 22 and a second water pump 23, and the second heat exchanger 21, the heat exchange component 22 and the second water pump 23 form a second circuit, and the heat exchange component 22 includes the heat exchange component 22; the third heat exchange system 3 includes a third heat exchanger 31, a fourth heat exchanger 32 and a compressor 33, and the third heat exchanger 31, the fourth heat exchanger 32 and the compressor 33 form a third circuit, and the third heat exchanger 31 is used to exchange heat with the first heat exchanger 11, and the fourth heat exchanger 32 is used to exchange heat with the second heat exchanger 21. The third heat exchange system 3 can serve as a heat transfer bridge between the first heat exchange system 1 and the second heat exchange system 2, thereby realizing the coupling between the first heat exchange system 1 and the second heat exchange system 2, thereby reducing the use of refrigerant (R290) in the air-conditioning system 10 while ensuring the cooling performance of the passenger compartment, thereby improving the safety of the air-conditioning system 10 and reducing costs.

[0051] In some embodiments of the present invention, Figure 1-Figure 4As shown, the vehicle includes a battery heat exchange system 4, which includes a fifth heat exchanger 41, a liquid cooling component 42 and a third water pump 43, and the fifth heat exchanger 41, the liquid cooling component 42 and the third water pump 43 form a heat exchange circuit; the heat exchange component 22 also includes: a sixth heat exchanger 223, the sixth heat exchanger 223, the first sub-heat exchanger 221 and the second sub-heat exchanger 222 are connected in parallel, and the sixth heat exchanger 223 is used to exchange heat with the fifth heat exchanger 41.

[0052] It can be understood that the coolant from the second heat exchanger 21 is divided and enters the first sub-heat exchanger 221, the second sub-heat exchanger 222 and the sixth heat exchanger 223 respectively. The sixth heat exchanger 223 exchanges heat with the fifth heat exchanger 41, thereby cooling the coolant in the fifth heat exchanger 41. After the refrigerant in the fifth heat exchange enters the liquid cooling component 42 driven by the third water pump 43, the battery of the vehicle is cooled, thereby improving safety. Therefore, through the arrangement of the sixth heat exchanger 223 and the fifth heat exchanger 41, the battery heat exchange system 4 can be coupled with the air conditioning system 10, thereby reducing the arrangement of additional structures such as the compressor 33, and further reducing the cost.

[0053] Furthermore, if Figure 1 As shown, an expansion pot 92 is connected to the heat exchange circuit, so as to facilitate the adjustment of the pressure balance during the operation of the battery heat exchange system 4, so that the battery heat exchange system 4 can work better.

[0054] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the second heat exchange system 2 also includes: a dehumidifier 24, which is arranged on the windward side of the first sub-heat exchanger 221 and the second sub-heat exchanger 222, and the dehumidifier 24 has a dehumidification flow path, which is connected in series to the second circuit, and the inlet of the dehumidification flow path is connected to the outlet of the heat exchange component 22, and the outlet of the dehumidification flow path is connected to the inlet of the second heat exchanger 21.

[0055] It can be understood that the dehumidifier 24 can preheat or precool the airflow in the flow channel; after the coolant exchanges heat with the vehicle's internal environment in the heat exchange component 22, it flows out of the heat exchange component 22 and enters the dehumidifier 24 through the dehumidification flow path. Since the dehumidifier 24 is arranged on the windward side of the first sub-heat exchanger 221 and the second sub-heat exchanger 222, the air flowing to the first sub-heat exchanger 221 and the second sub-heat exchanger 222 can first exchange heat with the coolant in the dehumidification flow path (the coolant still has a certain amount of cold / heat after heat exchange with the heat exchange component 22) to achieve precooling or preheating, thereby improving the cooling / heating efficiency.

[0056] For example, in the cooling mode, the dehumidifier 24 can pre-cool the air flow in the flow channel. After the coolant exchanges heat with the vehicle interior environment in the heat exchange component 22, it flows out of the heat exchange component 22 and enters the dehumidifier 24 through the dehumidification flow path. Since the dehumidifier 24 is arranged on the windward side of the first sub-heat exchanger 221 and the second sub-heat exchanger 222, the air flowing to the first sub-heat exchanger 221 and the second sub-heat exchanger 222 can first exchange heat with the coolant in the dehumidification flow path (the coolant still has a certain amount of cooling capacity after exchanging heat with the heat exchange component 22) to achieve pre-cooling, thereby improving the cooling efficiency.

[0057] For example, in the heating mode, the dehumidifier 24 can preheat the airflow in the flow channel; after the coolant exchanges heat with the vehicle interior environment in the heat exchange component 22, it flows out of the heat exchange component 22 and enters the dehumidifier 24 through the dehumidification flow path. Since the dehumidifier 24 is arranged on the windward side of the first sub-heat exchanger 221 and the second sub-heat exchanger 222, the air flowing to the first sub-heat exchanger 221 and the second sub-heat exchanger 222 can first exchange heat with the coolant in the dehumidification flow path (the coolant still has a certain amount of heat after heat exchange with the heat exchange component 22) to achieve preheating, thereby improving the heating efficiency.

[0058] In some embodiments of the present invention, Figure 3 As shown, the air conditioning system 10 further includes: a first connecting flow path 5 and a second connecting flow path 6. One end of the first connecting flow path 5 is connected between the outlet of the first heat exchanger 11 and the inlet of the external heat exchanger 12 through a first three-way valve 51, and the other end of the first connecting flow path 5 is connected to the inlet of the heat exchange component 22, and the first water pump 13 is located between the outlet of the first heat exchanger 11 and the first three-way valve 51; one end of the second connecting flow path 6 is connected to the outlet of the dehumidification flow path, and the other end of the second connecting flow path 6 is connected to the outlet of the external heat exchanger 12 and the inlet of the first heat exchanger 11 through a second three-way valve 61, and the first heat exchanger 11, the first water pump 13, the heat exchange component 22 and the dehumidifier 24 form a fourth loop.

[0059] It can be understood that the setting of the first three-way valve 51 enables the coolant to flow from the first circuit to the first connecting flow path 5, thereby enabling the coolant heated in the first heat exchanger 11 to flow to the heat exchange component 22, thereby achieving heating of the air conditioning system 10. The setting of the second three-way valve 61 enables the coolant to flow from the second circuit to the second connecting flow path 6, and the second connecting flow path 6 is connected to the inlet of the first heat exchanger 11, thereby enabling the coolant after heat exchange with the heat exchange component 22 to return to the first heat exchanger 11, thereby achieving the circulation of the coolant.

[0060] When the ambient temperature is low, the heated coolant in the first heat exchanger 11 enters the first sub-heat exchanger 221 and the second sub-heat exchanger 222 through the first connecting flow path 5, thereby realizing the ambient temperature increase in the vehicle. The heated coolant in the first heat exchanger 11 simultaneously enters the sixth heat exchanger 223. At this time, after the fifth heat exchanger 41 and the sixth heat exchanger 223 perform heat exchange, the coolant in the sixth heat exchanger 223 is heated, thereby realizing the heating of the liquid cooling component 42, so that the battery can work normally in a low temperature environment.

[0061] After the coolant exchanges heat with the vehicle interior environment in the heat exchange component 22, it flows out of the heat exchange component 22 and enters the dehumidifier 24 through the dehumidification flow path. Since the dehumidifier 24 is arranged on the windward side of the first sub-heat exchanger 221 and the second sub-heat exchanger 222, the air flowing to the first sub-heat exchanger 221 and the second sub-heat exchanger 222 can first exchange heat with the refrigerant in the dehumidification flow path (the refrigerant still has a certain amount of heat after exchanging heat with the heat exchange component 22) to achieve preheating, thereby improving the heating efficiency. After the coolant flows out of the dehumidification flow path, it flows to the inlet of the first heat exchanger 11, thereby realizing the circulation of the coolant.

[0062] Therefore, by providing the first connecting flow path 5 and the second connecting flow path 6, the air conditioning system 10 can heat the interior environment of the vehicle, thereby meeting the heating needs of the user.

[0063] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, a first four-way valve 52 is provided on the first connecting flow path 5, and the first four-way valve 52 is provided between the inlet of the heat exchange component 22 and the first three-way valve 51. The first four-way valve 52 includes a first port 521, a second port 522, a third port 523 and a fourth port 524. The first port 521 is connected to the first three-way valve 51, the second port 522 is connected to the inlet of the second sub-heat exchanger 222, the third port 523 is connected to the inlet of the sixth heat exchanger 223, and the fourth port 524 is connected to the inlet of the first sub-heat exchanger 221. The first port 521, the second port 522, the third port 523 and the fourth port 524 are all connected or the first port 521 is interrupted from the second port 522, the third port 523 and the fourth port 524.

[0064] It is understandable that if Figure 1 , Figure 3 and Figure 4As shown, when in the heating mode, the first port 521, the second port 522, the third port 523 and the fourth port 524 are all connected, so that the coolant can flow from the first port 521 to the second port 522, the third port 523 and the fourth port 524, so that the first connecting flow path 5 is closed. At the same time, since the second port 522 is connected to the inlet of the second sub-heat exchanger 222, the third port 523 is connected to the inlet of the sixth heat exchanger 223, and the fourth port 524 is connected to the inlet of the first sub-heat exchanger 221, the first four-way valve 52 can play a role of diversion, so that the refrigerant can flow to the first sub-heat exchanger 221, the second sub-heat exchanger 222 and the sixth heat exchanger 223 respectively, to achieve heating for the vehicle interior environment and heating for the battery.

[0065] like Figure 1 and Figure 2 As shown, when in cooling mode, the first port 521 and the second port 522, the third port 523 and the fourth port 524 are all interrupted, that is, the refrigerant cannot flow to the second port 522, the third port 523 and the fourth port 524 through the first port 521, so that the first connecting flow path 5 is disconnected, preventing the coolant from the first heat exchanger 11 from affecting the heating work of the coolant from the second heat exchanger 21, thereby ensuring that the air-conditioning system 10 can work normally.

[0066] Furthermore, the first four-way valve 52 may be a proportional four-way valve. In the heating mode, the proportional four-way valve may adjust the opening to control the flow rate and flow to the heat exchange assembly 22, thereby achieving the function of adjusting the temperature and improving the user's comfort. At the same time, when the first four-way valve 52 is a proportional four-way valve, in the cooling mode, the opening of the first four-way valve 52 may be controlled (smaller) so that the refrigerant in the first circuit enters the second circuit in an appropriate amount, thereby adjusting the water temperature in the second circuit, thereby achieving the function of adjusting the temperature and improving the user's comfort.

[0067] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the air-conditioning system 10 also includes: a third connecting flow path 7 and a fourth connecting flow path 8, one end of the third connecting flow path 7 is connected between the outlet of the second heat exchanger 21 and the inlet of the heat exchange component 22 through a third three-way valve 71, and the other end is connected between the inlet of the external heat exchanger 12 and the outlet of the first heat exchanger 11, and the second water pump 23 is located between the outlet of the second heat exchanger 21 and the third three-way valve 71; one end of the fourth connecting flow path 8 is connected between the outlet of the external heat exchanger 12 and the inlet of the first heat exchanger 11, and the other end is connected between the outlet of the heat exchange component 22 and the inlet of the second heat exchanger 21, and the second heat exchanger 21, the second water pump 23, and the external heat exchanger 12 form a fifth loop.

[0068] It can be understood that the third connecting flow path 7 is set so that the cooling liquid after cooling in the second heat exchanger 21 can flow to the inlet of the external heat exchanger 12, so that in the heating mode, the cooling liquid after cooling in the second heat exchanger 21 can enter the external heat exchanger 12 to exchange heat with the external environment to be heated. The fourth connecting flow path 8 is set so that the cooling liquid after heat exchange can return to the second heat exchanger 21 after flowing out of the external heat exchanger 12, thereby realizing the circulation of the cooling liquid, thereby realizing the heating of the air conditioning system 10.

[0069] Therefore, in the heating mode, the first heat exchanger 11 and the second heat exchanger 21 exchange heat through the third heat exchange system 3, and the heated coolant in the first heat exchanger 11 enters the first sub-heat exchanger 221 and the second sub-heat exchanger 222 through the first connecting flow path 5, thereby realizing the heating of the environment in the vehicle. The heated coolant in the first heat exchanger 11 simultaneously enters the sixth heat exchanger 223. At this time, after the fifth heat exchanger 41 and the sixth heat exchanger 223 perform heat exchange, the refrigerant in the sixth heat exchanger 223 is heated, thereby realizing the heating of the liquid cooling component 42, so that the battery can work normally in a low temperature environment. After the refrigerant exchanges heat with the vehicle interior environment in the heat exchange component 22, it flows out of the heat exchange component 22 and enters the dehumidifier 24 through the dehumidification flow path. Since the dehumidifier 24 is arranged on the windward side of the first sub-heat exchanger 221 and the second sub-heat exchanger 222, the air flowing to the first sub-heat exchanger 221 and the second sub-heat exchanger 222 can first exchange heat with the coolant in the dehumidification flow path (the coolant still has a certain amount of heat after exchanging heat with the heat exchange component 22) to achieve preheating, thereby improving the heating efficiency. After the refrigerant flows out of the dehumidification flow path, it flows to the inlet of the first heat exchanger 11, thereby realizing the circulation of the coolant.

[0070] The cooling liquid after cooling in the second heat exchanger 21 can enter the external heat exchanger 12 to exchange heat with the external environment to be heated. The fourth connecting flow path 8 is set so that the cooling liquid after exchanging heat can return to the second heat exchanger 21 after flowing out of the external heat exchanger 12, thereby realizing the cooling liquid circulation. In this way, the heating of the air conditioning system 10 is realized.

[0071] In some embodiments of the present invention, Figure 1-Figure 4 As shown, a second four-way valve 72 is provided on the third connecting flow path 7, and the second four-way valve 72 is provided between the second water pump 23 and the third three-way valve 71. The second four-way valve 72 includes a fifth port 721, a sixth port 722, a seventh port 723 and an eighth port 724. The fifth port 721 is connected to the outlet of the second heat exchanger 21, the sixth port 722 is connected to the inlet of the first sub-heat exchanger 221, the seventh port 723 is connected to the third three-way valve 71, and the eighth port 724 is connected to the inlet of the sixth heat exchanger 223. The fifth port 721, the sixth port 722, the seventh port 723 and the eighth port 724 are all connected, or the fifth port 721 is connected to the seventh port 723.

[0072] It is understandable that if Figure 1 and Figure 2 As shown, when the air-conditioning system 10 is cooling, the fifth port 721, the sixth port 722, the seventh port 723 and the eighth port 724 are all connected, so that the coolant after cooling in the second heat exchanger 21 can enter the heat exchange component 22 through the second four-way valve 72, thereby realizing the cooling of the air-conditioning system 10. At the same time, the second four-way valve 72 also plays a role of diversion, so that the coolant after cooling in the second heat exchanger 21 can enter the first sub-heat exchanger 221, the second sub-heat exchanger 222 and the sixth heat exchanger 223 at the same time, thereby realizing the cooling of the vehicle interior environment and the battery.

[0073] In the cooling mode, the first heat exchanger 11 and the second heat exchanger 21 exchange heat through the third heat exchange system 3, and the coolant heated in the first heat exchanger 11 passes through the first three-way valve 51, the external heat exchanger 12 and the second three-way valve 61 in sequence and returns to the first heat exchanger 11. The coolant cooled in the second heat exchanger 21 first passes through the sixth port 722 of the second four-way valve 72 and enters the first sub-heat exchanger 221, enters the sixth heat exchanger 223 from the eighth port 724 of the second four-way valve 72, and enters the third three-way valve 71 from the seventh port 723, and then enters the second sub-heat exchanger 222. Among them, the third three-way valve 71 can be a proportional three-way valve, which can control the flow rate and flow to the second sub-heat exchanger 222 by adjusting the opening, thereby achieving the function of adjusting the temperature and improving the comfort of the user.

[0074] Furthermore, if Figure 1 , Figure 3 and Figure 4 As shown, when the air conditioning system 10 is heating, the fifth port 721 is connected to the seventh port 723. Thus, the cooling liquid after cooling in the second heat exchanger 21 can be prevented from entering the heat exchange assembly 22 and the sixth heat exchanger 223 from the sixth port 722 and the eighth port 724. At the same time, since the seventh port 723 is connected to the third three-way valve 71, in the heating mode, one end of the third connecting flow path 7 is connected between the outlet of the second heat exchanger 21 and the inlet of the heat exchange assembly 22 through the third three-way valve 71, thereby preventing the cooling liquid after cooling in the second heat exchanger 21 from entering the heat exchange assembly 22 from the seventh port 723, thereby ensuring the reliability of heating of the air conditioning system 10.

[0075] In the heating mode, the cooling liquid heated in the first heat exchanger 11 flows back to the first heat exchanger 11 through the first three-way valve 51, the heat exchange assembly 22 and the dehumidifier 24 in sequence. The cooling liquid cooled in the second heat exchanger 21 flows back to the second heat exchanger 21 through the fifth port 721 of the second four-way valve 72, the seventh port 723 of the second four-way valve 72 and the external heat exchanger 12 in sequence.

[0076] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the third connecting flow path 7 is further provided with a third four-way valve 73, and the third four-way valve 73 includes a ninth port 731, a tenth port 732, an eleventh port 733 and a twelfth port 734. The ninth port 731 is connected to the inlet of the dehumidification flow path, and the eleventh port 733 is connected to the outlet of the heat exchange component 22; the third connecting flow path 7 includes a first sub-flow path and a second sub-flow path, one end of the first sub-flow path is connected to the outlet of the second water pump 23 through the third three-way valve 71, and the other end is connected to the second port 522, and the second sub-flow path One end of the circuit is connected to the fourth port 524, and the other end is connected between the inlet of the external heat exchanger 12 and the outlet of the first heat exchanger 11, wherein the tenth port 732 is connected to one of the ninth port 731 and the twelfth port 734, and the eleventh port 733 is connected to the other of the ninth port 731 and the twelfth port 734. The first heat exchanger 11, the first water pump 13, the heat exchange component 22 and the external heat exchanger 12 form a sixth loop, and the second heat exchanger 21, the second water pump 23 and the dehumidifier 24 form a seventh loop.

[0077] It can be understood that, through the setting of the third four-way valve 73, the first heat exchanger 11, the first water pump 13, the heat exchange assembly 22 and the external heat exchanger 12 can form a sixth loop, and the second heat exchanger 21, the second water pump 23, and the dehumidifier 24 can form a seventh loop. When the ambient temperature is low and the humidity is high, the first heat exchanger 11, the first water pump 13, the heat exchange assembly 22 and the external heat exchanger 12 can form a sixth loop, so that the coolant heated in the first heat exchanger 11 can pass through the external heat exchanger 12, thereby achieving the effect of defrosting the external heat exchanger 12. At the same time, the second heat exchanger 21, the second water pump 23, and the dehumidifier 24 form a seventh loop, so that the coolant cooled in the second heat exchanger 21 can pass through the dehumidifier 24, so that the air in the flow channel is cooled down, the fog on the vehicle glass is reduced, and the frost on the glass is removed.

[0078] It is understandable that the dehumidifier 24 can remove moisture from the air, thereby making the airflow drier and reducing the occurrence of mold and mildew in the air conditioning system 10 and the vehicle interior environment. Therefore, through the setting of the third four-way valve 73, the third connecting flow path 7 includes a first sub-flow path and a second sub-flow path, thereby achieving the defrosting and defogging effect of the air conditioning system 10.

[0079] Among them, Figure 1 and Figure 4As shown, when the air-conditioning system 10 is in the defrost and defog mode, the tenth port 732 is connected to the ninth port 731, and the eleventh port 733 is connected to the twelfth port 734, so that the first heat exchanger 11, the first water pump 13, the heat exchange component 22 and the external heat exchanger 12 form a sixth circuit, and the second heat exchanger 21, the second water pump 23, and the dehumidifier 24 form a seventh circuit, thereby achieving the defrost and defog effect of the air-conditioning system 10.

[0080] Furthermore, if Figure 1-Figure 3 As shown, when the air conditioning system 10 is in the heating mode and the cooling mode, the tenth port 732 is connected to the twelfth port 734, and the eleventh port 733 is connected to the ninth port 731. Figure 1 and Figure 3 As shown, in the heating mode, the cooling liquid heated in the first heat exchanger 11 can pass through the heat exchange component 22 and the dehumidifier 24, thereby achieving preheating and improving the heating effect. Figure 1 and Figure 2 As shown, in the cooling mode, the cooling liquid after the temperature is reduced in the second heat exchanger 21 can pass through the heat exchange component 22 and the dehumidifier 24, so as to achieve pre-cooling and improve the cooling efficiency.

[0081] In some embodiments of the present invention, Figure 1-Figure 4 As shown, a fourth four-way valve 81 is provided on the fourth connecting flow path 8, and the fourth four-way valve 81 includes a thirteenth port 811, a fourteenth port 812, a fifteenth port 813 and a sixteenth port 814, the thirteenth port 811 is connected to the inlet of the second heat exchanger 21, the fourteenth port 812 is connected to the second three-way valve 61, the fifteenth port 813 is connected to the outlet of the dehumidification flow path, and the sixteenth port 814 is connected to the inlet of the first heat exchanger 11, wherein the thirteenth port 811 is connected to one of the fourteenth port 812 and the fifteenth port 813, and the sixteenth port 814 is connected to the other of the fourteenth port 812 and the fifteenth port 813.

[0082] It is understandable that if Figure 1 and Figure 2 As shown, in the cooling mode, the thirteenth port 811 is connected to the fifteenth port 813, and the sixteenth port 814 is connected to the fourteenth port 812, thereby allowing the first heat exchanger 11, the external heat exchanger 12 and the first water pump 13 to form a first loop. Figure 1 and Figure 3 As shown, in the heating mode, the thirteenth port 811 is connected to the fourteenth port 812, and the sixteenth port 814 is connected to the fifteenth port 813, so that the second heat exchanger 21, the second water pump 23, and the external heat exchanger 12 can form a fifth loop, and at the same time, the first heat exchanger 11, the first water pump 13, the heat exchange component 22 and the dehumidifier 24 can form a fourth loop. Figure 1 and Figure 4As shown, in the defogger and defrost mode, the thirteenth port 811 is connected to the fifteenth port 813, and the sixteenth port 814 is connected to the fourteenth port 812, thereby making the first heat exchanger 11, the first water pump 13, the heat exchange component 22 and the external heat exchanger 12 form a sixth circuit, and the second heat exchanger 21, the second water pump 23, and the dehumidifier 24 form a seventh circuit.

[0083] Thus, by controlling the thirteenth port 811 to communicate with one of the fourteenth port 812 and the fifteenth port 813, the sixteenth port 814 to communicate with the other of the fourteenth port 812 and the fifteenth port 813, different loops can be formed, thereby achieving different operating conditions of the air conditioning system 10.

[0084] In some embodiments of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, the air conditioning system 10 further includes: a heater 91, which is disposed on the first connecting flow path 5 and between the first three-way valve 51 and the inlet of the heat exchange component 22. It can be understood that in the heating mode, the heater 91 can heat the coolant from the first heat exchanger 11, so that the coolant is further heated, thereby improving the heating efficiency.

[0085] The vehicle according to the embodiment of the present invention includes the above-mentioned air conditioning system 10 .

[0086] According to the vehicle of the embodiment of the present invention, by setting the above-mentioned air-conditioning system 10, the first heat exchange system 1 includes a first heat exchanger 11, an external heat exchanger 12 and a first water pump 13, and the first heat exchanger 11, the external heat exchanger 12 and the first water pump 13 form a first circuit; the second heat exchange system 2 includes a second heat exchanger 21, a heat exchange component 22 and a second water pump 23, and the second heat exchanger 21, the heat exchange component 22 and the second water pump 23 form a second circuit, and the heat exchange component 22 includes the heat exchange component 22; the third heat exchange system 3 includes a third heat exchanger 31, a fourth heat exchanger 32 and a compressor 33, and the third heat exchanger 31, the fourth heat exchanger 32 and the compressor 33 form a third circuit, and the third heat exchanger 31 is used to exchange heat with the first heat exchanger 11, and the fourth heat exchanger 32 is used to exchange heat with the second heat exchanger 21. The third heat exchange system 3 can serve as a heat transfer bridge between the first heat exchange system 1 and the second heat exchange system 2, thereby realizing the coupling between the first heat exchange system 1 and the second heat exchange system 2, that is, realizing the coupling of the refrigeration system and the heating system, thereby ensuring the refrigeration performance of the passenger compartment while reducing the use of refrigerant (R290) in the air-conditioning system 10, improving the safety of the air-conditioning system 10, and reducing costs.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0088] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioning system, characterized in that: For vehicles and including: a first heat exchange system, the first heat exchange system comprising a first heat exchanger, an external heat exchanger and a first water pump, the first heat exchanger, the external heat exchanger and the first water pump forming a first loop; a second heat exchange system, the second heat exchange system comprising a second heat exchanger, a heat exchange component and a second water pump, the second heat exchanger, the heat exchange component and the second water pump forming a second loop, the heat exchange component comprising: a first sub-heat exchanger and a second sub-heat exchanger, the first sub-heat exchanger and the second sub-heat exchanger being connected in parallel; The third heat exchange system comprises a third heat exchanger, a fourth heat exchanger and a compressor, wherein the third heat exchanger, the fourth heat exchanger and the compressor form a third circuit, the third heat exchanger is used for exchanging heat with the first heat exchanger, and the fourth heat exchanger is used for exchanging heat with the second heat exchanger.

2. The air conditioning system according to claim 1, characterized in that: The vehicle includes a battery heat exchange system, which includes a fifth heat exchanger, a liquid cooling component and a third water pump. The fifth heat exchanger, the liquid cooling component and the third water pump form a heat exchange circuit. The heat exchange component includes: a sixth heat exchanger, the sixth heat exchanger, the first sub-heat exchanger and the second sub-heat exchanger are connected in parallel, and the sixth heat exchanger is used to exchange heat with the fifth heat exchanger.

3. The air conditioning system according to claim 2, characterized in that: The second heat exchange system also includes: A dehumidifier, wherein the dehumidifier is arranged on the windward side of the first sub-heat exchanger and the second sub-heat exchanger, and the dehumidifier has a dehumidification flow path, wherein the dehumidification flow path is connected in series to the second circuit, wherein the inlet of the dehumidification flow path is connected to the outlet of the heat exchange component, and the outlet of the dehumidification flow path is connected to the inlet of the second heat exchanger.

4. The air conditioning system according to claim 3, characterized in that: Also includes: a first connecting flow path, one end of which is connected between the outlet of the first heat exchanger and the inlet of the external heat exchanger through a first three-way valve, the other end of which is connected to the inlet of the heat exchange component, and the first water pump is located between the outlet of the first heat exchanger and the first three-way valve; a second connecting flow path, one end of which is connected to the outlet of the dehumidification flow path, and the other end of which is connected to the outlet of the external heat exchanger and the inlet of the first heat exchanger through a second three-way valve; The first heat exchanger, the first water pump, the heat exchange component and the dehumidifier form a fourth loop.

5. The air conditioning system according to claim 4, characterized in that: A first four-way valve is provided on the first connecting flow path, the first four-way valve is provided between the inlet of the heat exchange component and the first three-way valve, the first four-way valve includes a first port, a second port, a third port and a fourth port, the first port is communicated with the first three-way valve, the second port is communicated with the inlet of the second sub-heat exchanger, the third port is communicated with the inlet of the sixth heat exchanger, and the fourth port is communicated with the inlet of the first sub-heat exchanger. The first port, the second port, the third port and the fourth port are all connected, or the first port is disconnected from the second port, the third port and the fourth port.

6. The air conditioning system according to claim 5, characterized in that: Also includes: a third connecting flow path, one end of which is connected between the outlet of the second heat exchanger and the inlet of the heat exchange assembly through a third three-way valve, and the other end of which is connected between the inlet of the external heat exchanger and the outlet of the first heat exchanger, and the second water pump is located between the outlet of the second heat exchanger and the third three-way valve; a fourth connecting flow path, one end of which is connected between the outlet of the external heat exchanger and the inlet of the first heat exchanger, and the other end of which is connected between the outlet of the heat exchange component and the inlet of the second heat exchanger, The second heat exchanger, the second water pump, and the external heat exchanger form a fifth loop.

7. The air conditioning system according to claim 6, characterized in that: A second four-way valve is provided on the third connecting flow path, the second four-way valve is provided between the second water pump and the third three-way valve, the second four-way valve includes a fifth port, a sixth port, a seventh port and an eighth port, the fifth port is communicated with the outlet of the second heat exchanger, the sixth port is communicated with the inlet of the first sub-heat exchanger, the seventh port is communicated with the third three-way valve, and the eighth port is communicated with the inlet of the sixth heat exchanger, The fifth port, the sixth port, the seventh port and the eighth port are all connected, or the fifth port is connected to the seventh port.

8. The air conditioning system according to claim 6, characterized in that: The third connecting flow path is further provided with a third four-way valve, the third four-way valve comprising a ninth port, a tenth port, an eleventh port and a twelfth port, the ninth port being communicated with the inlet of the dehumidification flow path, and the eleventh port being communicated with the outlet of the heat exchange component; The third connecting flow path includes a first sub-flow path and a second sub-flow path, one end of the first sub-flow path is connected to the outlet of the second water pump through the third three-way valve, and the other end is connected to the second port, one end of the second sub-flow path is connected to the fourth port, and the other end is connected between the inlet of the external heat exchanger and the outlet of the first heat exchanger, Among them, the tenth port is connected to one of the ninth port and the twelfth port, the eleventh port is connected to the other of the ninth port and the twelfth port, the first heat exchanger, the first water pump, the heat exchange component and the external heat exchanger form a sixth loop, and the second heat exchanger, the second water pump, and the dehumidifier form a seventh loop.

9. The air conditioning system according to claim 6, characterized in that: The fourth connecting flow path is provided with a fourth four-way valve, the fourth four-way valve includes a thirteenth port, a fourteenth port, a fifteenth port and a sixteenth port, the thirteenth port is connected to the inlet of the second heat exchanger, the fourteenth port is connected to the second three-way valve, the fifteenth port is connected to the outlet of the dehumidification flow path, and the sixteenth port is connected to the inlet of the first heat exchanger. The thirteenth port is communicated with one of the fourteenth port and the fifteenth port, and the sixteenth port is communicated with the other of the fourteenth port and the fifteenth port.

10. The air conditioning system according to claim 4, characterized in that: Also includes: A heater is disposed on the first connecting flow path and between the first three-way valve and the inlet of the heat exchange component.

11. A vehicle, characterized in that: Comprising an air conditioning system according to any one of claims 1-10.

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