Vehicle thermal management system

Abstract

The utility model provides a vehicle heat management system which comprises a water circulation system and a refrigerant circulation system. The first heat exchange structure comprises a first heat exchange flow channel and a second heat exchange flow channel exchanging heat with the first heat exchange flow channel, the water circulation system communicates with the two ends of the first heat exchange flow channel, and the refrigerant circulation system communicates with the two ends of the second heat exchange flow channel; the second heat exchange structure comprises a third heat exchange flow channel and a fourth heat exchange flow channel exchanging heat with the third heat exchange flow channel, the water circulation system communicates with the two ends of the third heat exchange flow channel, and the refrigerant circulation system communicates with the two ends of the fourth heat exchange flow channel; the third heat exchange structure comprises a fifth heat exchange flow channel and a sixth heat exchange flow channel exchanging heat with the fifth heat exchange flow channel, and the water circulation system communicates with the two ends of the fifth heat exchange flow channel; and a heat exchange channel of the battery structure is communicated with the two ends of the sixth heat exchange flow channel. According to the technical scheme, the problem that in the related technology, the vehicle heat management effect is poor is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle thermal management technology, and more specifically, to a vehicle thermal management system. Background Technology

[0002] Pure electric vehicles (EVs) and traditional gasoline-powered vehicles have significantly different thermal management requirements. On one hand, the thermal management requirements of EVs encompass the battery, electric drive system, air conditioning, and high-voltage components, making thermal management more difficult and complex. On the other hand, EVs require both the electric drive system and the battery to operate. Both the electric drive system and the battery generate substantial heat during operation. Furthermore, the battery's thermal conductivity is lower than that of the electric drive system, hindering sufficient heat exchange between the two systems. This results in excessively high battery temperatures, impacting battery lifespan and driving range.

[0003] In related technologies, water circulation systems and refrigerant circulation systems are used to ensure heat exchange between the battery and the electric drive system. However, since the water circulation system and the refrigerant circulation system are set up independently, this will affect the effectiveness of vehicle thermal management. Utility Model Content

[0004] The main objective of this invention is to provide a vehicle thermal management system to solve the problem of poor performance of vehicle thermal management in related technologies.

[0005] To achieve the above objectives, this utility model provides a vehicle thermal management system, comprising: a water circulation system and a refrigerant circulation system; a first heat exchange structure, the first heat exchange structure including a first heat exchange channel and a second heat exchange channel exchanging heat with the first heat exchange channel, the water circulation system being connected to both ends of the first heat exchange channel, and the refrigerant circulation system being connected to both ends of the second heat exchange channel; a second heat exchange structure, the second heat exchange structure including a third heat exchange channel and a fourth heat exchange channel exchanging heat with the third heat exchange channel, the water circulation system being connected to both ends of the third heat exchange channel, and the refrigerant circulation system being connected to both ends of the fourth heat exchange channel; a third heat exchange structure, the third heat exchange structure including a fifth heat exchange channel and a sixth heat exchange channel exchanging heat with the fifth heat exchange channel, the water circulation system being connected to both ends of the fifth heat exchange channel; and a battery structure, the heat exchange channel of the battery structure being connected to both ends of the sixth heat exchange channel.

[0006] Furthermore, the water circulation system includes a first multi-way valve, a radiator, a dehumidifier, and a three-way valve; the outlet of the radiator is connected to the first valve port of the first multi-way valve via a first water pipe, and the inlet of the radiator is connected to the second valve port of the first multi-way valve via a second water pipe; the inlet of the first heat exchange channel is connected to the third valve port of the first multi-way valve; the outlet of the first heat exchange channel is connected to the fourth valve port of the first multi-way valve via a fourth water pipe; the fifth valve port of the first multi-way valve is connected to the first inlet of the dehumidifier via a fifth water pipe; and the sixth valve port of the first multi-way valve is connected to... The first outlet of the dehumidifier is connected to the sixth water pipe; the seventh valve port of the first multi-way valve is connected to the inlet of the third heat exchange channel through the seventh water pipe; the eighth valve port of the first multi-way valve is connected to the second outlet of the dehumidifier through the eighth water pipe; the first outlet and the second outlet of the three-way valve are located on the eighth water pipe, and the third outlet of the three-way valve is connected to the inlet of the third heat exchange channel through the ninth water pipe; the outlet of the third heat exchange channel is connected to the second inlet of the dehumidifier through the tenth water pipe; the two ends of the fifth heat exchange channel are connected to the ninth water pipe.

[0007] Furthermore, the fourth water pipe is equipped with a first tank and a first pump.

[0008] Furthermore, a second tank is installed on the seventh water pipe.

[0009] Furthermore, a second pump body and a three-way switch are installed on the tenth water pipe. The first outlet and the second outlet of the three-way switch are connected to the tenth water pipe. The three-way switch is located between the dehumidifier and the second pump body. The third outlet of the three-way switch is connected to the eighth water pipe.

[0010] Furthermore, the sixth water pipe is connected to the heat dissipation channel of the electric drive system.

[0011] Furthermore, the refrigerant circulation system includes an air conditioning compressor structure and a second multi-way valve. The outlet of the air conditioning compressor structure is connected to the first valve port of the second multi-way valve through a first refrigerant pipe. The second valve port of the second multi-way valve is connected to the inlet of the second heat exchange channel through the second refrigerant pipe. The outlet of the second heat exchange channel is connected to the inlet of the fourth heat exchange channel through a third refrigerant pipe. The outlet of the fourth heat exchange channel is connected to the third valve port of the second multi-way valve through a fourth refrigerant pipe.

[0012] Furthermore, the refrigerant circulation system also includes a gas-liquid separator. The fourth valve port of the second multi-way valve is connected to the inlet of the air conditioning compressor structure through the fifth refrigerant pipe, and the gas-liquid separator is installed on the fifth refrigerant pipe.

[0013] Furthermore, an expansion valve is installed on the third refrigerant pipe.

[0014] Furthermore, one of the first heat exchange structure and the second heat exchange structure is a water-cooled condenser, and the other of the first heat exchange structure and the second heat exchange structure is an evaporator.

[0015] The present invention provides a first heat exchange structure comprising a first heat exchange channel and a second heat exchange channel, wherein a water circulation system is connected to both ends of the first heat exchange channel, and a refrigerant circulation system is connected to both ends of the second heat exchange channel. The second heat exchange structure comprises a third and a fourth heat exchange channel, wherein a water circulation system is connected to both ends of the third heat exchange channel, and a refrigerant circulation system is connected to both ends of the fourth heat exchange channel. The third heat exchange structure comprises a fifth and a sixth heat exchange channel, wherein a water circulation system is connected to both ends of the fifth heat exchange channel. The heat exchange channel of the battery structure is connected to both ends of the sixth heat exchange channel. Through this arrangement, the water circulation system and the refrigerant circulation system can exchange heat through the first and second heat exchange structures, thereby improving the heat exchange effect. The connection between the heat exchange channel of the battery structure and both ends of the sixth heat exchange channel enables heat exchange on the battery structure. This arrangement not only improves the heat exchange effect but also ensures the efficiency of heat exchange. Therefore, the present invention effectively solves the problem of poor vehicle thermal management in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of an embodiment of the vehicle thermal management system according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A schematic diagram of the refrigerant circulation system.

[0019] The above figures include the following reference numerals:

[0020] 10. Water circulation system; 11. First multi-way valve; 12. Radiator; 13. Dehumidifier; 14. Three-way valve; 20. Refrigerant circulation system; 21. Air conditioning compressor structure; 22. Second multi-way valve; 23. Gas-liquid separator; 30. First heat exchange structure; 31. First heat exchange channel; 32. Second heat exchange channel; 40. Second heat exchange structure; 41. Third heat exchange channel; 42. Fourth heat exchange channel; 50. Third heat exchange structure; 51. Fifth heat exchange channel; 52. Sixth heat exchange channel; 60. Battery structure; 71. First tank; 72. First pump body; 73. Second tank; 74. Second pump body; 75. Three-way switch; 76. Expansion valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0024] like Figure 1As shown, in this embodiment, the vehicle thermal management system includes: a water circulation system 10, a refrigerant circulation system 20, a first heat exchange structure 30, a second heat exchange structure 40, a third heat exchange structure 50, and a battery structure 60. The first heat exchange structure 30 includes a first heat exchange channel 31 and a second heat exchange channel 32 that exchanges heat with the first heat exchange channel 31. The water circulation system 10 is connected to both ends of the first heat exchange channel 31, and the refrigerant circulation system 20 is connected to both ends of the second heat exchange channel 32. The second heat exchange structure 40 includes a third heat exchange channel 41 and a fourth heat exchange channel 42 that exchanges heat with the third heat exchange channel 41. The water circulation system 10 is connected to both ends of the third heat exchange channel 41, and the refrigerant circulation system 20 is connected to both ends of the fourth heat exchange channel 42. The third heat exchange structure 50 includes a fifth heat exchange channel 51 and a sixth heat exchange channel 52 that exchanges heat with the fifth heat exchange channel 51. The water circulation system 10 is connected to both ends of the fifth heat exchange channel 51. The heat exchange channel of the battery structure 60 is connected to both ends of the sixth heat exchange channel 52.

[0025] Applying the technical solution of this embodiment, the first heat exchange structure 30 includes a first heat exchange channel 31 and a second heat exchange channel 32. The water circulation system 10 is connected to both ends of the first heat exchange channel 31, and the refrigerant circulation system 20 is connected to both ends of the second heat exchange channel 32. The second heat exchange structure 40 includes a third heat exchange channel 41 and a fourth heat exchange channel 42. The water circulation system 10 is connected to both ends of the third heat exchange channel 41, and the refrigerant circulation system 20 is connected to both ends of the fourth heat exchange channel 42. The third heat exchange structure 50 includes a fifth heat exchange channel 51 and a sixth heat exchange channel 52. The water circulation system 10 is connected to both ends of the fifth heat exchange channel 51. The heat exchange channel of the battery structure 60 is connected to both ends of the sixth heat exchange channel 52. Through the above arrangement, the water circulation system 10 and the refrigerant circulation system 20 can exchange heat through the first heat exchange structure 30 and the second heat exchange structure 40, thereby improving the heat exchange effect. The heat exchange channel of the battery structure 60 is connected to both ends of the sixth heat exchange channel 52, thereby enabling heat exchange between the battery structure 60 and the other two ends. This arrangement not only improves the heat exchange effect but also ensures the efficiency of heat exchange. Therefore, the technical solution of this embodiment effectively solves the problem of poor vehicle thermal management in related technologies.

[0026] This integrated design not only optimizes the utilization of vehicle interior space but also improves the response speed of the thermal management system. It is suitable for various electric and hybrid vehicles, especially in high or low temperature environments, enabling rapid adjustment of battery temperature to ensure stable battery performance. By tightly integrating the thermal management system with the battery structure, the system can respond to battery temperature changes in a very short time, effectively preventing overheating or overcooling and extending battery life.

[0027] like Figure 1 As shown, in this embodiment, the water circulation system 10 includes a first multi-way valve 11, a radiator 12, a dehumidifier 13, and a three-way valve 14; the outlet of the radiator 12 is connected to the first valve port of the first multi-way valve 11 via a first water pipe, and the inlet of the radiator 12 is connected to the second valve port of the first multi-way valve 11 via a second water pipe; the inlet of the first heat exchange channel 31 is connected to the third valve port of the first multi-way valve 11; the outlet of the first heat exchange channel 31 is connected to the fourth valve port of the first multi-way valve 11 via a fourth water pipe; the fifth valve port of the first multi-way valve 11 is connected to the first inlet of the dehumidifier 13 via a fifth water pipe; the first multi-way valve 14... The sixth valve port of the first multi-way valve 11 is connected to the first outlet of the dehumidifier 13 via the sixth water pipe; the seventh valve port of the first multi-way valve 11 is connected to the inlet of the third heat exchange channel 41 via the seventh water pipe; the eighth valve port of the first multi-way valve 11 is connected to the second outlet of the dehumidifier 13 via the eighth water pipe; the first outlet and the second outlet of the three-way valve 14 are located on the eighth water pipe, and the third outlet of the three-way valve 14 is connected to the inlet of the third heat exchange channel 41 via the ninth water pipe; the outlet of the third heat exchange channel 41 is connected to the second inlet of the dehumidifier 13 via the tenth water pipe; both ends of the fifth heat exchange channel 51 are connected to the ninth water pipe. Through the above-described water circulation system 10 design, the vehicle can flexibly adjust the cooling or heating strategies of the battery and electric drive system under different operating conditions, effectively extending the vehicle's range and battery life. In other words, the above setup ensures that the vehicle maintains the battery and electric drive system in optimal working condition under complex and changing driving environments, improving the overall energy efficiency and performance stability of the vehicle. Especially at high speeds, the heat generated by the electric drive system increases dramatically. This efficient cooling strategy prevents the electric drive system from overheating, thereby reducing energy loss and increasing the vehicle's range. Simultaneously, in low-temperature winter conditions, the system can rapidly heat the battery, improving battery charging and discharging efficiency.

[0028] like Figure 1 As shown, in this embodiment, a first tank 71 and a first pump 72 are provided on the fourth water pipe. The first tank 71 is used to store coolant, ensuring that the system has sufficient coolant supply during peak cooling demand, while the first pump 72 ensures stable water circulation in the system, maintaining the ideal operating temperature of the battery and electric drive system even under high load operation, which is suitable for thermal management of high-performance electric vehicles.

[0029] like Figure 1 As shown, in this embodiment, a second tank 73 is provided on the seventh water pipe. The introduction of the second tank 73 effectively solves the problem of coolant volume expansion and contraction caused by temperature changes during long-term vehicle operation, avoids drastic fluctuations in internal system pressure, and ensures the stable operation of the thermal management system. At the same time, the second tank 73 can also reduce the impact of water flow during vehicle start-up and shutdown, extending the service life of system components.

[0030] like Figure 1 As shown, in this embodiment, a second pump body 74 and a three-way switch 75 are installed on the tenth water pipe. The first and second outlets of the three-way switch 75 are connected to the tenth water pipe. The three-way switch 75 is located between the dehumidifier 13 and the second pump body 74, and the third outlet of the three-way switch 75 is connected to the eighth water pipe. The combination of the second pump body 74 and the three-way switch 75 provides more flexibility for battery temperature control, enabling the system to quickly respond to and adjust the water circulation volume according to the specific temperature requirements of the battery. At the same time, the introduction of the three-way switch 75 also facilitates the switching of the system between different modes, such as quickly switching from cooling mode to heating mode, to cope with sudden environmental changes and improve the adaptability and safety of the vehicle.

[0031] like Figure 1 As shown, in this embodiment, the sixth water pipe is connected to the heat dissipation channel of the electric drive system. This design allows the electric drive system to directly exchange heat with the water circulation system 10, improving the cooling efficiency of the electric drive system. It is suitable for high-power output electric vehicles and ensures that the electric drive system can maintain a highly efficient and stable working state even under high load.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, the refrigerant circulation system 20 includes an air conditioning compressor structure 21 and a second multi-way valve 22. The outlet of the air conditioning compressor structure 21 is connected to the first valve port of the second multi-way valve 22 via a first refrigerant pipe. The second valve port of the second multi-way valve 22 is connected to the inlet of the second heat exchange channel 32 via a second refrigerant pipe. The outlet of the second heat exchange channel 32 is connected to the inlet of the fourth heat exchange channel 42 via a third refrigerant pipe. The outlet of the fourth heat exchange channel 42 is connected to the third valve port of the second multi-way valve 22 via a fourth refrigerant pipe. This refrigerant circulation system 20 design enables rapid cooling and heating of the vehicle interior environment, suitable for driving needs under various climatic conditions, especially providing a comfortable riding experience for passengers in hot summers and cold winters.

[0033] The second multi-way valve 22 mentioned above is a four-way valve.

[0034] like Figure 1 and Figure 2As shown, in this embodiment, the refrigerant circulation system 20 further includes a gas-liquid separator 23. The fourth valve port of the second multi-way valve 22 is connected to the inlet of the air conditioning compressor structure 21 through the fifth refrigerant pipe, and the gas-liquid separator 23 is installed on the fifth refrigerant pipe. The gas-liquid separator 23 ensures that the refrigerant entering the air conditioning compressor structure 21 is in a gaseous state, avoiding damage to the air conditioning compressor structure 21 by liquid refrigerant. It is suitable for all vehicles using refrigerant circulation systems, especially under conditions of frequent start-up and shutdown of the refrigerant circulation system, and can effectively extend the service life of the air conditioning compressor structure 21.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, an expansion valve 76 is provided on the third refrigerant pipe. The expansion valve 76 can precisely control the refrigerant flow rate, thereby achieving fine adjustment of the ambient temperature inside the vehicle compartment, which is suitable for vehicles with high requirements for the ambient temperature inside the vehicle.

[0036] Specifically, the precise control capability of the expansion valve 76 allows the system to make fine adjustments based on passengers' individual needs for the temperature inside the vehicle, thereby improving ride comfort.

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, one of the first heat exchange structure 30 and the second heat exchange structure 40 is a water-cooled condenser, and the other is an evaporator. This design allows the system to simultaneously perform cooling and heating operations, suitable for all-season driving needs, especially in areas with large temperature differences. It can flexibly switch operating modes according to the external environment and vehicle requirements, providing efficient thermal management for the vehicle year-round. By integrating the water-cooled condenser and evaporator into the first heat exchange structure 30 and the second heat exchange structure 40, the system can flexibly switch between cooling and heating modes under various climatic conditions throughout the year, ensuring that the temperature inside the vehicle and key components remains ideal.

[0038] Specifically, the refrigerant circulation system 20 in this embodiment can achieve both forward and reverse flow, thereby enabling the switching between the water-cooled condenser and the evaporator.

[0039] like Figure 1 and Figure 2 As shown, the vehicle thermal management system of this embodiment has the following modes:

[0040] 1. Passenger cabin cooling: The first and third valve ports of the first multi-way valve 11 are connected, the second and sixth valve ports are connected, the fourth and fifth valve ports are connected, the seventh and eighth valve ports are connected, the three-way valve 14 is not connected to the ninth water pipe, the three-way switch 75 is connected to the tenth water pipe and the dehumidifier 13, and the three-way switch 75 is not connected to the eighth water pipe.

[0041] 2. Battery cooling / cooling dehumidification: The first and third valve ports of the first multi-way valve 11 are connected, the second and sixth valve ports are connected, the fourth and fifth valve ports are connected, the seventh and eighth valve ports are connected, the eighth and ninth water pipes are connected through the three-way valve 14 but not connected to the eighth valve port, and the three-way switch 75 connects the tenth water pipe and the eighth water pipe, and the three-way switch 75 is not connected to the dehumidifier 13.

[0042] 3. Passenger cabin cooling + battery cooling: The first and third valve ports of the first multi-way valve 11 are connected, the second and sixth valve ports are connected, the fourth and fifth valve ports are connected, the seventh and eighth valve ports are connected, the eighth and ninth water pipes are connected through the three-way valve 14 and are connected to the eighth valve port, the three-way switch 75 is connected to the tenth water pipe and the dehumidifier 13, and the three-way switch 75 is not connected to the eighth water pipe.

[0043] 4. Heating and dehumidification: The third and sixth valve ports of the first multi-way valve 11 are connected, the first valve port is connected to the seventh valve port, the second valve port is connected to the eighth valve port, the fourth valve port is connected to the fifth valve port, the three-way valve 14 is not connected to the ninth water pipe, and the three-way switch 75 is connected to the tenth water pipe and the dehumidifier 13, and the three-way switch 75 is not connected to the eighth water pipe.

[0044] 5. Heating, dehumidification and battery cooling: The first valve port of the first multi-way valve 11 is connected to the second valve port, the third valve port is connected to the sixth valve port, the fourth valve port is connected to the fifth valve port, the seventh valve port is connected to the eighth valve port, the eighth water pipe and the ninth water pipe are connected through the three-way valve 14 and are connected to the eighth valve port, and the three-way switch 75 is connected to the tenth water pipe and the dehumidifier 13 and the three-way switch 75 is not connected to the eighth water pipe.

[0045] 6. Battery motor natural cooling: The first valve port of the first multi-way valve 11 is connected to the third valve port, the second valve port is connected to the sixth valve port, the fifth valve port is connected to the eighth valve port, the fourth valve port is connected to the seventh valve port, the eighth valve port is connected to the ninth water pipe through the three-way valve 14, the eighth valve port is not connected to the dehumidifier, the three-way switch 75 is connected to the tenth water pipe and the eighth water pipe, and the three-way switch 75 is not connected to the dehumidifier 13.

[0046] 7. Heating Heat Pump: The first valve port of the first multi-way valve 11 is connected to the fifth valve port, the third valve port is connected to the sixth valve port, the second valve port is connected to the fourth valve port, and the seventh valve port is connected to the eighth valve port. The three-way valve 14 is not connected to the ninth water pipe, and the three-way switch 75 is connected to the tenth water pipe and the dehumidifier 13, and the three-way switch 75 is not connected to the eighth water pipe.

[0047] 8. Heating Heat Pump + Battery Heating: The first valve port of the first multi-way valve 11 is connected to the fifth valve port, the third valve port is connected to the sixth valve port, the second valve port is connected to the fourth valve port, and the seventh valve port is connected to the eighth valve port. The eighth and ninth water pipes are connected through the three-way valve 14 and are connected to the eighth valve port. The three-way switch 75 is connected to the tenth water pipe and the dehumidifier 13, but the three-way switch 75 is not connected to the eighth water pipe.

[0048] 9. Defrosting during parking: The first valve port of the first multi-way valve 11 is connected to the third valve port, the fifth valve port is connected to the sixth valve port, the fourth valve port is connected to the seventh valve port, and the second valve port is connected to the eighth valve port. The eighth and ninth water pipes are connected through the three-way valve 14 and are connected to the eighth valve port. The three-way switch 75 connects the tenth water pipe and the dehumidifier 13, but the three-way switch 75 is not connected to the eighth water pipe.

[0049] 10. Defrosting while driving: The first valve port of the first multi-way valve 11 is connected to the seventh valve port, the third valve port is connected to the sixth valve port, the fourth valve port is connected to the fifth valve port, and the second valve port is connected to the eighth valve port. The eighth and ninth water pipes are connected through the three-way valve 14 and are connected to the eighth valve port. The three-way switch 75 connects the tenth water pipe and the dehumidifier 13, but the three-way switch 75 is not connected to the eighth water pipe.

[0050] 11. Self-generated heat: The first valve port of the first multi-way valve 11 is connected to the second valve port, the third valve port is connected to the eighth valve port, the fifth valve port is connected to the sixth valve port, and the fourth valve port is connected to the seventh valve port. The eighth and ninth water pipes are connected through the three-way valve 14 and are connected to the eighth valve port. The three-way switch 75 is connected to the tenth water pipe and the dehumidifier 13, but the three-way switch 75 is not connected to the eighth water pipe.

[0051] It should be noted that the first to eighth valve ports mentioned above are all valve ports on the first multi-way valve 11, that is, the first multi-way valve 11 is an eight-way valve.

[0052] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0053] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0054] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle thermal management system, characterized in that, include: Water circulation system (10) and refrigerant circulation system (20); The first heat exchange structure (30) includes a first heat exchange channel (31) and a second heat exchange channel (32) that exchanges heat with the first heat exchange channel (31). The water circulation system (10) is connected to both ends of the first heat exchange channel (31), and the refrigerant circulation system (20) is connected to both ends of the second heat exchange channel (32). The second heat exchange structure (40) includes a third heat exchange channel (41) and a fourth heat exchange channel (42) that exchanges heat with the third heat exchange channel (41). The water circulation system (10) is connected to both ends of the third heat exchange channel (41), and the refrigerant circulation system (20) is connected to both ends of the fourth heat exchange channel (42). The third heat exchange structure (50) includes a fifth heat exchange channel (51) and a sixth heat exchange channel (52) that exchanges heat with the fifth heat exchange channel (51). The water circulation system (10) is connected to both ends of the fifth heat exchange channel (51). The battery structure (60) has a heat exchange channel that is connected to both ends of the sixth heat exchange channel (52).

2. The vehicle thermal management system according to claim 1, characterized in that, The water circulation system (10) includes a first multi-way valve (11), a radiator (12), a dehumidifier (13), and a three-way valve (14); the outlet of the radiator (12) is connected to the first valve port of the first multi-way valve (11) via a first water pipe, and the inlet of the radiator (12) is connected to the second valve port of the first multi-way valve (11) via a second water pipe; the inlet of the first heat exchange channel (31) is connected to the third valve port of the first multi-way valve (11); the outlet of the first heat exchange channel (31) is connected to the fourth valve port of the first multi-way valve (11) via a fourth water pipe; the fifth valve port of the first multi-way valve (11) is connected to the first inlet of the dehumidifier (13) via a fifth water pipe; the first multi-way valve (11) The sixth valve port is connected to the first outlet of the dehumidifier (13) through the sixth water pipe; the seventh valve port of the first multi-way valve (11) is connected to the inlet of the third heat exchange channel (41) through the seventh water pipe; the eighth valve port of the first multi-way valve (11) is connected to the second outlet of the dehumidifier (13) through the eighth water pipe; the first outlet and the second outlet of the three-way valve (14) are located on the eighth water pipe, and the third outlet of the three-way valve (14) is connected to the inlet of the third heat exchange channel (41) through the ninth water pipe; the outlet of the third heat exchange channel (41) is connected to the second inlet of the dehumidifier (13) through the tenth water pipe; the two ends of the fifth heat exchange channel (51) are connected to the ninth water pipe.

3. The vehicle thermal management system according to claim 2, characterized in that, The fourth water pipe is equipped with a first tank (71) and a first pump (72).

4. The vehicle thermal management system according to claim 2, characterized in that, A second tank (73) is installed on the seventh water pipe.

5. The vehicle thermal management system according to claim 2, characterized in that, The tenth water pipe is equipped with a second pump body (74) and a three-way switch (75). The first outlet and the second outlet of the three-way switch (75) are connected to the tenth water pipe. The three-way switch (75) is located between the dehumidifier (13) and the second pump body (74). The third outlet of the three-way switch (75) is connected to the eighth water pipe.

6. The vehicle thermal management system according to claim 2, characterized in that, The sixth water pipe is connected to the heat dissipation channel of the electric drive system.

7. The vehicle thermal management system according to any one of claims 1 to 6, characterized in that, The refrigerant circulation system (20) includes an air conditioning compressor structure (21) and a second multi-way valve (22). The outlet of the air conditioning compressor structure (21) is connected to the first valve port of the second multi-way valve (22) through a first refrigerant pipe. The second valve port of the second multi-way valve (22) is connected to the inlet of the second heat exchange channel (32) through a second refrigerant pipe. The outlet of the second heat exchange channel (32) is connected to the inlet of the fourth heat exchange channel (42) through a third refrigerant pipe. The outlet of the fourth heat exchange channel (42) is connected to the third valve port of the second multi-way valve (22) through a fourth refrigerant pipe.

8. The vehicle thermal management system according to claim 7, characterized in that, The refrigerant circulation system (20) also includes a gas-liquid separator (23), and the fourth valve port of the second multi-way valve (22) is connected to the inlet of the air conditioning compression structure (21) through the fifth refrigerant pipe. The gas-liquid separator (23) is installed on the fifth refrigerant pipe.

9. The vehicle thermal management system according to claim 7, characterized in that, An expansion valve (76) is provided on the third refrigerant pipe.

10. The vehicle thermal management system according to any one of claims 1 to 6, characterized in that, One of the first heat exchange structure (30) and the second heat exchange structure (40) is a water-cooled condenser, and the other of the first heat exchange structure (30) and the second heat exchange structure (40) is an evaporator.

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