Heat exchange integration module, vehicle heat management system and control method of vehicle heat management system

Abstract

The invention provides a heat exchange integrated module, a vehicle heat management system and a control method thereof.The heat exchange integrated module comprises a heat exchange assembly, the heat exchange assembly comprises a refrigerant runner plate made of metal, a first plate heat exchanger, an electronic expansion valve and a second plate heat exchanger, and a first refrigerant runner is formed in the refrigerant runner plate; the first plate heat exchanger is provided with a first refrigerant heat exchange part and a first cooling liquid heat exchange part which can achieve heat exchange, a refrigerant outlet pipe of the first refrigerant heat exchange part is inserted into a runner refrigerant inlet, and the second plate heat exchanger is provided with a second refrigerant heat exchange part and a second cooling liquid heat exchange part which can achieve heat exchange. A refrigerant inlet pipe of the second refrigerant heat exchange part is inserted into a flow channel refrigerant outlet, the first refrigerant flow channel is further provided with a throttling port, and the electronic expansion valve is assembled on the throttling port to throttle refrigerant flowing in the first refrigerant flow channel. The anti-vibration, pressure-resistant and leakage-proof air conditioner has higher anti-vibration, pressure-resistant and leakage-proof performance, and the safety of refrigerants in the using process is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of design of air-conditioning system pipeline processing equipment, and in particular relates to a heat exchange integrated module, a vehicle thermal management system and a control method thereof. Background Art

[0002] Thermal management of electric vehicles generally uses coolant as a heat transfer medium. By controlling the valves in the coolant flow path, the thermal management flow path mode is switched under different heat requirements, and the coolant is passed to the motor, battery, electronic control and other systems. The passenger cabin usually directly passes the refrigerant in the refrigerant system into the cabin heat exchanger for heating or cooling. With the continuous improvement of environmental protection requirements, the use of refrigerants with low GWP values ​​but high working pressure or flammability in vehicles will inevitably become a technical development trend. The refrigerant pipe structure in the existing refrigerant system has poor vibration resistance and thus leads to safety hazards of refrigerant leakage. Especially under the working conditions of refrigerants with high working pressures, how to improve the safety of refrigerants during use is a technical problem that needs to be solved urgently in the industry. Summary of the invention

[0003] Therefore, the present invention provides a heat exchange integrated module, a vehicle thermal management system and a control method thereof, which can overcome the technical problems in the prior art that traditional refrigerant pipes have poor vibration resistance, especially the safety hazard of refrigerant leakage under refrigerant working conditions with high working pressure.

[0004] In order to solve the above problems, the present invention provides a heat exchange integrated module, including a heat exchange component, the heat exchange component including a refrigerant flow channel plate made of metal material, a first plate heat exchanger, an electronic expansion valve, and a second plate heat exchanger, a first refrigerant flow channel is formed in the refrigerant flow channel plate, the first refrigerant flow channel has a flow channel refrigerant inlet and a flow channel refrigerant outlet, the first plate heat exchanger has a first refrigerant heat exchange part and a first coolant heat exchange part capable of realizing heat exchange, the refrigerant outlet pipe of the first refrigerant heat exchange part is inserted in the flow channel refrigerant inlet, the second plate heat exchanger has a second refrigerant heat exchange part and a second coolant heat exchange part capable of realizing heat exchange, the refrigerant inlet pipe of the second refrigerant heat exchange part is inserted in the flow channel refrigerant outlet, the first refrigerant flow channel also has a throttling port, and the electronic expansion valve is assembled on the throttling port to throttle the refrigerant flowing in the first refrigerant flow channel.

[0005] In some embodiments, the heat exchange component also includes a gas-liquid separator, a second refrigerant flow channel is also formed in the refrigerant flow channel plate, the flow channel refrigerant inlet of the second refrigerant flow channel is connected to the refrigerant outlet pipe of the second refrigerant heat exchange part of the second plate heat exchanger, and the gas-liquid separator is assembled at the flow channel refrigerant outlet of the second refrigerant flow channel.

[0006] In some embodiments, the heat exchange integrated module also includes a flow switching component, which includes a valve body substrate and a multi-way valve, the multi-way valve is assembled on a first side of the valve body substrate, and the heat exchange component is assembled on a second side of the valve body substrate, and the first side and the second side are respectively one of the two opposite sides of the valve body substrate.

[0007] In some embodiments, the multi-way valve includes a valve body shell formed on the first side and a valve core located in the valve body shell, a flow channel cavity is formed on the side wall of the valve core and on the end face close to the first side, and a plurality of flow channel ports are formed on the valve body shell.

[0008] In some embodiments, the multi-way valve is a twelve-way valve, and the flow channel ports include a first external port, a second external port, a third external port, a fourth external port, a fifth external port, a sixth external port, a seventh external port, an eighth external port, a ninth external port, a tenth external port, an eleventh external port, and a twelfth external port; the flow channel cavity includes a first flow channel cavity, a second flow channel cavity, a third flow channel cavity, a fourth flow channel cavity, a fifth flow channel cavity, a sixth flow channel cavity, a seventh flow channel cavity, and an eighth flow channel cavity, wherein the sixth flow channel cavity, the seventh flow channel cavity, and the eighth flow channel cavity are on the end face of the valve core, and the first flow channel cavity, the second flow channel cavity, the third flow channel cavity, the fourth flow channel cavity, and the fifth flow channel cavity are on the side wall of the valve core, and the first flow channel cavity is connected to the eighth flow channel cavity.

[0009] In some embodiments, the first external port and the second external port are arranged to protrude from the second side surface, the coolant inlet of the first coolant heat exchange part of the first plate heat exchanger is plugged into the first external port, and the coolant inlet of the second coolant heat exchange part of the second plate heat exchanger is plugged into the second external port.

[0010] In some embodiments, a first water pump and a second water pump are also assembled on the first side, and a first adapter interface and a second adapter interface protruding from the second side are formed on the valve body substrate. The coolant outlet of the first coolant heat exchange part of the first plate heat exchanger is connected to the pump inlet of the second water pump via the second adapter interface, and the coolant outlet of the second coolant heat exchange part of the second plate heat exchanger is connected to the pump inlet of the first water pump via the first adapter interface, and the first adapter interface and the second adapter interface both pass through from the first side to the second side.

[0011] The present invention also provides a vehicle thermal management system, comprising the above-mentioned heat exchange integrated module, and also comprising a compressor, an in-cabin heat exchanger, an out-cabin heat exchanger and a battery heat exchange assembly, the air intake of the compressor is connected to the air outlet of the gas-liquid separator, the air exhaust of the compressor is connected to the refrigerant inlet pipe of the first refrigerant heat exchange part of the first plate heat exchanger, the pump outlet of the first water pump is connected to the eleventh external port, the pump outlet of the second water pump is connected to the twelfth external port, the first port of the in-cabin heat exchanger is connected to the fifth external port and the sixth external port at the same time, the second port of the in-cabin heat exchanger is connected to the seventh external port and the eighth external port at the same time, the first port of the out-cabin heat exchanger is connected to the fourth external port, the second port of the out-cabin heat exchanger is connected to the ninth external port, the first port of the battery heat exchange assembly is connected to the third external port, and the second port of the battery heat exchange assembly is connected to the tenth external port.

[0012] In some embodiments, the vehicle thermal management system also includes an electric drive heat exchange assembly, a first port of the electric drive heat exchange assembly is controllably connected to the fourth external port and the fifth external port via a first three-way valve, and a second port of the electric drive heat exchange assembly is controllably connected to the ninth external port and the tenth external port via a second three-way valve.

[0013] The present invention also provides a control method for the vehicle thermal management system as described above, comprising the following steps:

[0014] Obtaining an operating mode of the vehicle thermal management system;

[0015] The operating states of the compressor, the first water pump, and the second water pump and the flow path switching of the multi-way valve are controlled according to the acquired operating mode.

[0016] In some embodiments, when the operation mode is the first operation mode, the compressor, the first water pump and the second water pump are controlled to operate, and the first external port is controlled to be connected to the ninth external port, the second external port is controlled to be connected to the tenth external port, the third external port is controlled to be connected to the eighth external port, the fourth external port is controlled to be connected to the twelfth external port, and the fifth external port is controlled to be connected to the eleventh external port respectively; or,

[0017] When the operation mode is the second operation mode, the compressor, the first water pump and the second water pump are controlled to operate, and the first external port is controlled to be connected to the seventh external port, the second external port is controlled to be connected to the tenth external port, the third external port is controlled to be connected to the ninth external port, the fourth external port is controlled to be connected to the eleventh external port, and the sixth external port is controlled to be connected to the twelfth external port respectively; or

[0018] When the operation mode is the third operation mode, the compressor, the first water pump and the second water pump are controlled to operate, and the first external port and the tenth external port, the second external port and the ninth external port, the third external port and the seventh external port, the fourth external port and the eleventh external port, and the sixth external port and the twelfth external port are controlled to be connected respectively.

[0019] In some embodiments, when the vehicle thermal management system includes an electric drive heat exchange assembly:

[0020] When the operation mode is the first operation mode, the first three-way valve is controlled to connect the electric drive heat exchange assembly with the fifth external port, and the second three-way valve is controlled to connect the electric drive heat exchange assembly with the tenth external port; or,

[0021] When the operation mode is the second operation mode, the first three-way valve is controlled to connect the electric drive heat exchange assembly with the fourth external port, and the second three-way valve is controlled to connect the electric drive heat exchange assembly with the tenth external port; or,

[0022] When the operating mode is the third operating mode and the electric drive heat exchange assembly needs to be cooled, the first three-way valve is controlled to connect the electric drive heat exchange assembly with the fourth external port, and the second three-way valve is controlled to connect the electric drive heat exchange assembly with the ninth external port.

[0023] In some embodiments, when the operating mode is the second operating mode and no heating is required in the cabin, the compressor and the second water pump are controlled to stop running; and / or, when the operating mode is the second operating mode, the air inlet grille corresponding to the off-cabin heat exchanger is controlled to be closed and the fan is not started.

[0024] In some embodiments, when the vehicle thermal management system operates in the second operating mode and the compressor and the second water pump stop running, the air inlet grille corresponding to the outboard heat exchanger is controlled to open and the fan is started.

[0025] The present invention provides a heat exchange integrated module, a vehicle thermal management system and a control method thereof having the following characteristics:

[0026] Beneficial effects:

[0027] The refrigerant flow channel plate is used as an assembly carrier for the aforementioned first plate heat exchanger, the second plate heat exchanger and the electronic expansion valve, and also as a structural carrier for the refrigerant flow channel, so that the various components in the refrigerant cycle can be integrated on a metal plate body, and the structure is compact and simple. At the same time, since the refrigerant flow channel plate of the plate body has a higher structural strength than conventional refrigerant pipes, it has higher vibration resistance, pressure resistance and leakage resistance, which improves the safety of the refrigerant during use, and is especially suitable for environmentally friendly but high-pressure and flammable refrigerants. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0029] Figure 1 is a schematic diagram of the three-dimensional structure of the heat exchange integration module according to an embodiment of the present invention at one viewing angle;

[0030] Figure 2 is a schematic diagram of the three-dimensional structure of the heat exchange integrated module according to an embodiment of the present invention from another viewing angle;

[0031] Figure 3 yes Figure 2 A schematic diagram of the structural decomposition of the flow path switching component;

[0032] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the valve core in one viewing angle;

[0033] Figure 5 yes Figure 3 A schematic diagram of the three-dimensional structure of the valve core in another viewing angle;

[0034] Figure 6 is a schematic diagram of the system principle of a vehicle thermal management system in a first operating mode according to an embodiment of the present invention;

[0035] Figure 7 is a schematic diagram of the system principle of a vehicle thermal management system in a second operating mode according to an embodiment of the present invention;

[0036] Figure 8 1 is a schematic diagram of the system principle of a vehicle thermal management system in a third operating mode according to an embodiment of the present invention.

[0037] The accompanying drawings are marked as follows:

[0038] 100, refrigerant flow channel plate; 101, compressor; 102, first plate heat exchanger; 103, electronic expansion valve; 104, second plate heat exchanger; 105, gas-liquid separator; 200, multi-way valve; 201, first water pump; 202, second water pump; 210, valve body substrate; 2101, first external port; 2102, second external port; 2103, third external port; 2104, fourth external port; 2105, fifth external port; 2106, sixth external port; 2107, seventh external port; 2108, eighth external port; 2109, ninth external port; 2110, tenth external port ; 2111, the eleventh external port; 2112, the twelfth external port; 2113, the first adapter interface; 2114, the second adapter interface; 220, the valve core; 2201, the first flow channel cavity; 2202, the second flow channel cavity; 2203, the third flow channel cavity; 2204, the fourth flow channel cavity; 2205, the fifth flow channel cavity; 2206, the sixth flow channel cavity; 2207, the seventh flow channel cavity; 2208, the eighth flow channel cavity; 2209, the shaft hole; 231, the first three-way valve; 232, the second three-way valve; 241, the in-cabin heat exchanger; 242, the electric drive heat exchange assembly; 243, the out-of-cabin heat exchanger; 244, the battery heat exchange assembly. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90° or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0042] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0043] See also Figure 1 and Figure 8As shown, according to an embodiment of the present invention, a heat exchange integrated module is provided, including a heat exchange component (not labeled in the figure), the heat exchange component includes a refrigerant flow channel plate 100 made of metal material, a first plate heat exchanger 102, an electronic expansion valve 103, and a second plate heat exchanger 104. A first refrigerant flow channel (not labeled in the figure) is formed in the refrigerant flow channel plate 100, and the first refrigerant flow channel has a flow channel refrigerant inlet (not shown in the figure, not labeled) and a flow channel refrigerant outlet (not shown in the figure, not labeled), and the first plate heat exchanger 102 has a first refrigerant heat exchange part (not labeled in the figure) capable of realizing heat exchange The refrigerant outlet pipe of the first refrigerant heat exchange part is inserted into the refrigerant inlet of the flow channel, and the second plate heat exchanger 104 has a second refrigerant heat exchange part (not labeled in the figure) and a second coolant heat exchange part (not labeled in the figure) capable of realizing heat exchange, and the refrigerant inlet pipe of the second refrigerant heat exchange part is inserted into the refrigerant outlet of the flow channel, and the first refrigerant flow channel also has a throttling port (not shown and labeled in the figure), and the electronic expansion valve 103 is assembled on the throttling port to throttle the refrigerant flowing in the first refrigerant flow channel. The aforementioned metal materials are, for example, copper, aluminum, etc. It can be understood that the aforementioned throttling port, channel refrigerant outlet and channel refrigerant inlet are all interfaces constructed on the refrigerant channel plate 100, and the aforementioned first plate heat exchanger 102, second plate heat exchanger 104 and electronic expansion valve 103 are all assembled on the refrigerant channel plate 100 through corresponding pipeline interfaces, that is, the refrigerant channel plate 100 serves as a channel structure carrier and also as an assembly carrier for the aforementioned refrigerant-related components.

[0044] In this technical solution, the refrigerant flow channel plate 100 is used as an assembly carrier for the aforementioned first plate heat exchanger 102, the second plate heat exchanger 104 and the electronic expansion valve 103, and also as a structural carrier for the refrigerant flow channel, so that the various components in the refrigerant cycle can be integrated on a metal plate body, with a compact and simple structure. At the same time, since the refrigerant flow channel plate 100 of the plate body has a higher structural strength than conventional refrigerant pipes, it has higher vibration resistance, pressure resistance and leakage resistance, thereby improving the safety of the refrigerant during use, and is particularly suitable for environmentally friendly but high-pressure and flammable refrigerants.

[0045] In a preferred embodiment, the heat exchange assembly further includes a gas-liquid separator 105, and a second refrigerant flow channel (not shown in the figure and not labeled) is formed in the refrigerant flow channel plate 100, and the flow channel refrigerant inlet of the second refrigerant flow channel is connected to the refrigerant outlet pipe of the second refrigerant heat exchange part of the second plate heat exchanger 104, and the gas-liquid separator 105 is assembled at the flow channel refrigerant outlet of the second refrigerant flow channel. In this technical solution, a second refrigerant flow channel is further constructed in the refrigerant flow channel plate 100, and the gas-liquid separator 105 is assembled at the corresponding port of the refrigerant flow channel, that is, the gas-liquid separator 105 is also integrated and assembled on the refrigerant flow channel plate 100, which can further improve the integration, and most of the refrigerant circulation paths are integrated on the refrigerant flow channel plate 100, further improving the safety of the use of the refrigerant. It should be noted that the aforementioned electronic expansion valve 103 has its own refrigerant inlet and outlet, and correspondingly, ports corresponding to the inlet and outlet are formed at the corresponding assembly ports of the refrigerant channel plate 100, that is, the aforementioned assembly ports objectively have refrigerant outflow areas and refrigerant inflow areas that are independently separated from each other. The aforementioned first plate heat exchanger 102, the second plate heat exchanger 104, the electronic expansion valve 103 and the gas-liquid separator 105 are all assembled and sealed between the corresponding ports by plug-in (plug-in along the depth extension direction of the corresponding ports).

[0046] It can be understood that, in specific use, with respect to the refrigerant circulation loop, except for the compressor 101, all other functional components in the refrigerant circulation are integrated and assembled on the refrigerant flow channel plate 100, and the air intake and exhaust ports of the compressor 101 only need to be sealed and connected with corresponding components, such as the outlet of the gas-liquid separator 105 and the refrigerant inlet of the first plate heat exchanger 102 through hoses of corresponding lengths, so that the installation layout is flexible.

[0047] In some embodiments, the heat exchange integrated module further includes a flow path switching assembly (not labeled in the figure), the flow path switching assembly includes a valve body substrate 210 and a multi-way valve 200, the multi-way valve 200 is assembled on the first side of the valve body substrate 210, and the heat exchange assembly is assembled on the second side of the valve body substrate 210, and the first side and the second side are respectively one of the two opposite sides of the valve body substrate 210. That is, the heat exchange assembly and the flow path switching assembly are respectively arranged on two opposite sides of the valve body substrate 210, which can further optimize the structural design.

[0048] In some embodiments, the multi-way valve 200 includes a valve body shell formed on the first side surface and a valve core 220 in the valve body shell, a flow channel cavity is formed on the side wall of the valve core 220 and on the end surface close to the first side surface, and a plurality of flow channel ports are formed on the valve body shell, and the flow path switching purpose of the multi-way valve 200 is achieved through the correspondence between each flow channel port and each flow channel cavity. In a preferred embodiment, the valve body shell and the valve body substrate 210 are integrally formed. A shaft hole 2209 is formed on the end surface of the valve core 220 that is not structured on the flow channel cavity, and the rotation drive of the valve core 220 is achieved by fitting the shaft of the rotary motor into the shaft hole 2209.

[0049] In this technical solution, the flow channel cavities on the valve core 220 are respectively arranged on the side walls and the end surface thereof, which can effectively reduce the volume of the valve core and make the structure of the multi-way valve 200 more compact.

[0050] In some embodiments, the multi-way valve 200 is a twelve-way valve, the flow channel ports include a first external port 2101, a second external port 2102, a third external port 2103, a fourth external port 2104, a fifth external port 2105, a sixth external port 2106, a seventh external port 2107, an eighth external port 2108, a ninth external port 2109, a tenth external port 2110, an eleventh external port 2111, and a twelfth external port 2112; the flow channel cavity includes a first flow channel cavity 2201, a second flow channel cavity 2202, a third flow channel cavity 2103, a fourth external port 2104, a fifth external port 2105, a sixth external port 2106, a seventh external port 2107, an eighth external port 2108, a ninth external port 2109, a tenth external port 2110, an eleventh external port 2111, and a twelfth external port 2112. Cavity 2203, fourth flow channel cavity 2204, fifth flow channel cavity 2205, sixth flow channel cavity 2206, seventh flow channel cavity 2207, and eighth flow channel cavity 2208, wherein the sixth flow channel cavity 2206, the seventh flow channel cavity 2207, and the eighth flow channel cavity 2208 are located on the end surface of the valve core 220, and the first flow channel cavity 2201, the second flow channel cavity 2202, the third flow channel cavity 2203, the fourth flow channel cavity 2204, and the fifth flow channel cavity 2205 are located on the side wall of the valve core 220, and the first flow channel cavity 2201 is connected to the eighth flow channel cavity 2208.

[0051] See Figure 3 As shown, in some embodiments, the first external port 2101 and the second external port 2102 are arranged to protrude from the second side surface, the coolant inlet of the first coolant heat exchange part of the first plate heat exchanger 102 is plugged into the first external port 2101, and the coolant inlet of the second coolant heat exchange part of the second plate heat exchanger 104 is plugged into the second external port 2102.

[0052] In this technical solution, the first external port 2101 and the second external port 2102 penetrate the first side surface and the second side surface of the valve body substrate 210, thereby facilitating a convenient connection between the heat exchange component and the flow path switching component.

[0053] In some embodiments, the first side surface is further assembled with a first water pump 201 and a second water pump 202, and the valve body substrate 210 is formed with a first adapter interface 2113 and a second adapter interface 2114 protruding from the second side surface, and the coolant outlet of the first coolant heat exchange part of the first plate heat exchanger 102 is communicated with the pump inlet of the second water pump 202 via the second adapter interface 2114, and the coolant outlet of the second coolant heat exchange part of the second plate heat exchanger 104 is communicated with the pump inlet of the first water pump 201 via the first adapter interface 2113, and the first adapter interface 2113 and the second adapter interface 2114 are both connected from the first side surface to the second side surface. The aforementioned first water pump 201 and the second water pump 202 are specifically used to circulate the coolant in the cold water flow path and the hot water flow path in the coolant circulation flow path in the vehicle thermal management system. The first water pump 201 and the second water pump 202 are both assembled on the first side surface of the valve body substrate 210 and connected to the first plate heat exchanger 102 and the second plate heat exchanger 104 through corresponding adapter interfaces protruding to the second side surface, so that the structure is more compact and the degree of integration is higher.

[0054] According to an embodiment of the present invention, a vehicle thermal management system is also provided, comprising the above-mentioned heat exchange integrated module, and further comprising a compressor 101, an in-cabin heat exchanger 241, an out-cabin heat exchanger 243 and a battery heat exchange assembly 244, wherein the air intake port of the compressor 101 is communicated with the air outlet port of the gas-liquid separator 105, the air exhaust port of the compressor 101 is communicated with the refrigerant inlet pipe of the first refrigerant heat exchange part of the first plate heat exchanger 102, the pump outlet of the first water pump 201 is communicated with the eleventh external port 2111, the pump outlet of the second water pump 202 is communicated with the twelfth external port 2112, and the first port of the in-cabin heat exchanger 241 is communicated with the fifth external port 2105 and the sixth external port 2106 are connected at the same time, the second port of the in-cabin heat exchanger 241 is connected at the same time with the seventh external port 2107 and the eighth external port 2108, the first port of the out-of-cabin heat exchanger 243 is connected with the fourth external port 2104, the second port of the out-of-cabin heat exchanger 243 is connected with the ninth external port 2109, the first port of the battery heat exchange assembly 244 is connected with the third external port 2103, and the second port of the battery heat exchange assembly 244 is connected with the tenth external port 2110. It can be understood that in this technical solution, the first plate heat exchanger 102 serves as a condenser and the second plate heat exchanger 104 serves as an evaporator.

[0055] In this technical solution, the cooling liquid exchanges heat with the refrigerant in the refrigerant circulation path in the first plate heat exchanger 102 or the second plate heat exchanger 104, thereby achieving the purpose of cooling or heating the cabin and the battery. The refrigerant is concentrated in the aforementioned heat exchange component and the compressor 101, and will not directly enter the cabin space, thereby effectively improving the safety of the use of the refrigerant.

[0056] In some embodiments, the vehicle thermal management system also includes an electric drive heat exchange assembly 242, the first port of the electric drive heat exchange assembly 242 is controllably connected to the fourth external port 2104 and the fifth external port 2105 via a first three-way valve 231, and the second port of the electric drive heat exchange assembly 242 is controllably connected to the ninth external port 2109 and the tenth external port 2110 via a second three-way valve 232, thereby achieving controllable cooling and heat dissipation of the motor using coolant.

[0057] According to an embodiment of the present invention, there is also provided a control method for the vehicle thermal management system as described above, comprising the following steps:

[0058] Obtaining an operating mode of the vehicle thermal management system;

[0059] The operating states of the compressor 101 , the first water pump 201 , and the second water pump 202 and the flow path switching of the multi-way valve 200 are controlled according to the acquired operating mode.

[0060] See Figure 6 As shown, when the operation mode is the first operation mode, the compressor 101, the first water pump 201 and the second water pump 202 are controlled to operate, and the first external port 2101 is controlled to be connected to the ninth external port 2109, the second external port 2102 is controlled to be connected to the tenth external port 2110, the third external port 2103 is controlled to be connected to the eighth external port 2108, the fourth external port 2104 is controlled to be connected to the twelfth external port 2112, and the fifth external port 2105 is controlled to be connected to the eleventh external port 2111. At this time, the remaining external ports of the multi-way valve are all in a cut-off state. Figure 6As shown, at this time, the first plate heat exchanger 102 serves as a condenser, and the second plate heat exchanger 104 serves as an evaporator. After the coolant exchanges heat with the refrigerant in the second plate heat exchanger 104 and cools down, the coolant enters the cabin heat exchanger 241 through the eleventh external port 2111 and the fifth external port 2105 under the drive of the first water pump 201 to exchange heat with the cabin air to achieve cooling down of the cabin, and then enters the battery heat exchange assembly 244 through the eighth external port 2108 and the third external port 2103 to cool the battery ... The tenth external port 2110 and the second external port 2102 flow back to the second plate heat exchanger 104, completing the circulation of the cold water flow path; at the same time, after the coolant exchanges heat with the refrigerant in the first plate heat exchanger 102 and heats up, it enters the cabin heat exchanger 243 through the twelfth external port 2112 and the fourth external port 2104 in sequence under the drive of the second water pump 202, releases heat to the outside, and then flows back to the first plate heat exchanger 102 through the ninth external port 2109 and the first external port 2101, completing the circulation of the hot water flow path. In this way, in the first operating mode, the purpose of cooling the cabin and the battery is achieved.

[0061] Further, when the vehicle thermal management system includes an electric drive heat exchange assembly 242 and the operation mode is the first operation mode, the first three-way valve 231 is also controlled to connect the electric drive heat exchange assembly 242 with the fifth external port 2105, and the second three-way valve 232 is controlled to connect the electric drive heat exchange assembly 242 with the tenth external port 2110. At this time, the coolant after cooling in the second plate heat exchanger 104 flows through the eleventh external port 2111, the fifth external port 2105, and the first three-way valve 231 in sequence under the drive of the first water pump 201, enters the electric drive heat exchange assembly 242 to cool the motor, and then flows back to the second plate heat exchanger 104 through the second three-way valve 232, the tenth external port 2110, and the second external port 2102. Thereby, when the system operates in the first operation mode, the purpose of cooling the cabin, the battery and the motor at the same time is achieved.

[0062] See Figure 7As shown, when the operation mode is the second operation mode, the compressor 101, the first water pump 201 and the second water pump 202 are controlled to operate, and the first external port 2101 and the seventh external port 2107, the second external port 2102 and the tenth external port 2110, the third external port 2103 and the ninth external port 2109, the fourth external port 2104 and the eleventh external port 2111, and the sixth external port 2106 and the twelfth external port 2112 are controlled to be connected respectively, so as to achieve the purpose of heating the cabin and cooling the battery. It is worth emphasizing that in this mode, the cold water flow path can realize the utilization of the waste heat of the battery heat exchange assembly 244, that is, it can convert the waste heat in the battery heat exchange assembly 244 into heat. The heat is absorbed and exchanged to the refrigerant in the second plate heat exchanger 104, and then this part of the heat is released into the cabin; when the vehicle thermal management system includes an electric drive heat exchange assembly 242, and the operating mode is the second operating mode, the first three-way valve 231 is also controlled to connect the electric drive heat exchange assembly 242 with the fourth external port 2104, and the second three-way valve 232 is controlled to connect the electric drive heat exchange assembly 242 with the tenth external port 2110, thereby realizing cooling and heat dissipation of the motor. It can be understood that if there is no need to cool and dissipate the heat of the motor, the first three-way valve 231 and the second three-way valve 232 are controlled to cut off their circulation function. This technical means is applicable to both the first operating mode mentioned above and the third operating mode mentioned below.

[0063] See Figure 8 As shown, when the operation mode is the third operation mode, the compressor 101, the first water pump 201 and the second water pump 202 are controlled to operate, and the first external port 2101 and the tenth external port 2110, the second external port 2102 and the ninth external port 2109, the third external port 2103 and the seventh external port 2107, the fourth external port 2104 and the eleventh external port 2111, and the sixth external port 2106 and the twelfth external port 2112 are controlled to be connected respectively, so as to achieve the purpose of heating the cabin and the battery at the same time. It should be emphasized that in this operation mode, the cold water flow path can absorb heat from the outside air at the cabin heat exchanger 243 and exchange heat to the refrigerant in the second plate heat exchanger 104, and further transfer it to the hot water flow path through the first plate heat exchanger 102, and further release it to the cabin and the battery, thereby realizing the absorption and utilization of external heat. When the operating mode is the third operating mode and the electric drive heat exchange assembly 242 needs to be cooled, the first three-way valve 231 is controlled to connect the electric drive heat exchange assembly 242 with the fourth external port 2104, and the second three-way valve 232 is controlled to connect the electric drive heat exchange assembly 242 with the ninth external port 2109, so as to achieve cooling and heat dissipation of the motor while recovering the waste heat of the electric drive heat exchange assembly 242.

[0064] In some embodiments, when the operating mode is the second operating mode and there is no need for heating in the cabin, the compressor 101 and the second water pump 202 are controlled to stop running. At this time, the air inlet grille corresponding to the off-cabin heat exchanger 243 is controlled to be opened and the fan is started, and only the off-cabin heat exchanger 243 is used to cool the battery, so as to save energy and reduce consumption; when the operating mode is the second operating mode, the air inlet grille corresponding to the off-cabin heat exchanger 243 is controlled to be closed and the fan is not started to prevent the release of refrigerant cold to the external environment, thereby ensuring effective cooling of the battery.

[0065] The above three operation modes of the present invention are further described below in conjunction with specific embodiments:

[0066] In the three operating modes, the connection relationship between each flow channel cavity and each port is as follows:

[0067] I. First operating mode

[0068] ① The eleventh external port 2111 → the first flow channel cavity 2201 → the eighth flow channel cavity 2208 → the fifth external port 2105;

[0069] ② The eighth external port 2108 → the second flow channel cavity 2202 → the third external port 2103;

[0070] ③ The seventh external port 2107 → the third flow channel cavity 2203. In addition, the third flow channel cavity 2203 does not have any other ports, that is, the seventh external port 2107 is blocked;

[0071] ④ The ninth external port 2109 → the fourth flow channel cavity 2204 → the first external port 2101;

[0072] ⑤ The tenth external port 2110 → the fifth flow channel cavity 2205 → the second external port 2102;

[0073] ⑥ The sixth external port 2106 → the sixth flow channel cavity 2206, which is not connected to other ports, that is, the sixth external port 2106 is blocked;

[0074] ⑦ The twelfth external port 2112 → the seventh flow channel cavity 2207 → the fourth external port 2104;

[0075] II. Second operating mode

[0076] ① The eighth external port 2108 → the first flow channel cavity 2201 → the eighth flow channel cavity 2208, and no other ports are connected, that is, the eighth external port 2108 is blocked;

[0077] ② Ninth external port 2109 → second flow channel cavity 2202 → third external port 2103;

[0078] ③ The seventh external port 2107 → the third flow channel cavity 2203 → the first external port 2101;

[0079] ④ The tenth external port 2110 → the fourth flow channel cavity 2204 → the second external port 2102;

[0080] ⑤ The fifth flow channel cavity 2205 is not connected;

[0081] ⑥ The twelfth external port 2112 → the sixth flow channel cavity 2206 → the sixth external port 2106;

[0082] ⑦ Eleventh external port 2111 → seventh flow channel cavity 2207 → fourth external port 2104;

[0083] III. The third operating mode

[0084] ① The seventh external port 2107 → the first flow channel cavity 2201 → the third flow channel cavity 2203;

[0085] ② Ninth external port 2109 → second flow channel cavity 2202 → second external port 2102;

[0086] ③ The tenth external port 2110 → the third flow channel cavity 2203 → the first external port 2101;

[0087] ④ The fourth flow channel cavity 2204 is not connected;

[0088] ⑤ The fifth flow channel cavity 2205 is not connected;

[0089] ⑥ The twelfth external port 2112 → the sixth flow channel cavity 2206 → the sixth external port 2106;

[0090] ⑦ Eleventh external port 2111 → seventh flow channel cavity 2207 → fourth external port 2104;

[0091] The first operation mode is the full cooling operation mode, see attached Figure 6The flow direction of the coolant cold water flow path is: the first water pump 201 → the eleventh external port 2111 → the fifth external port 2105 → the cabin heat exchanger 241 → the eighth external port 2108 → the third external port 2103 → the battery heat exchange assembly 244 → the tenth external port 2110 → the second external port 2102 → the second plate heat exchanger 104 → the first water pump 201; the flow direction of the coolant hot water flow path is: the second water pump 202 → the twelfth external port 2112 → the fourth external port 2104 → the cabin heat exchanger 243 → the ninth external port 2109 → the first external port 2101 → the first plate heat exchanger 102 → the second water pump 202. In this operating mode, when the heat generated by the electric drive heat exchange assembly 242 is at a relatively low level and no heat dissipation is required, the first three-way valve 231 and the second three-way valve 232 are controlled not to be connected, so that the electric drive heat exchange assembly 242 is cut off from the flow path; when the heat generated by the electric drive heat exchange assembly 242 is relatively high and heat dissipation is required, the two ends of the electric drive heat exchange assembly 242 are connected to the fifth external port 2105 and the tenth external port 2110 respectively.

[0092] In the first operating mode, the coolant cold water flow path is responsible for cooling the passenger compartment, the electric drive heat exchange assembly 242, and the battery heat exchange assembly 244, and the coolant hot water flow path is responsible for transferring the heat of the high-temperature refrigerant to the outside air. After the coolant in the cold water flow path passes through the second plate heat exchanger 104 for heat exchange and cooling with the low-temperature refrigerant, it is pumped out by the first water pump 201, first passes through the cabin heat exchanger 241, and realizes the cooling of the passenger compartment. Then it flows through the battery heat exchange assembly 244 to realize the cooling of the battery heat exchange assembly 244. When the electric drive heat exchange assembly 242 dissipates heat, the coolant cold water flow path branches off at the fifth external port 2105, flows into the electric drive heat exchange assembly 242 from the first three-way valve 231 for heat dissipation, flows out from the second three-way valve 232, enters the tenth external port 2110 and merges into the coolant cold water main flow path, and finally returns to the second plate heat exchanger 104. In the coolant hot water flow path, the coolant is heated by the first plate heat exchanger 102 through heat exchange with the high-temperature refrigerant, and then pumped out by the second water pump 202. The heat is released to the outside air through the outboard heat exchanger 243, and the cooled coolant returns to the first plate heat exchanger 102.

[0093] The second operation mode is the transitional season operation mode. Figure 7The flow direction of the coolant cold water flow path is: first water pump 201→eleventh external port 2111→fourth external port 2104→outboard heat exchanger 243→ninth external port 2109→third external port 2103→battery heat exchange assembly 244→tenth external port 2110→second external port 2102→second plate heat exchanger 104→first water pump 201; the flow direction of the coolant hot water flow path is: second water pump 202→twelfth external port 2112→sixth external port 2106→inboard heat exchanger 241→seventh external port 2107→first external port 2101→first plate heat exchanger 102→second water pump 202. In this operation mode, when the electric drive heat exchange assembly 242 needs to dissipate heat, the first three-way valve 231 and the second three-way valve 232 are controlled to connect the electric drive heat exchange assembly 242 to the fourth external port 2104 and the tenth external port 2110 .

[0094] In the second operating mode, the coolant cold water flow path is responsible for cooling and dissipating the electric drive heat exchange assembly 242 and the battery heat exchange assembly 244, and the coolant hot water flow path is responsible for heating and heating the passenger compartment. When the passenger compartment has a heating demand, the compressor 101 is started and the refrigerant flow path enters the working state. After the coolant in the cold water flow path passes through the second plate heat exchanger 104 to exchange heat with the low-temperature refrigerant and cool it down, it is pumped out by the first water pump 201 and passes through the cabin heat exchanger 243. At this time, the external fan is not started and the vehicle air intake grille is closed. It is then passed into the battery heat exchange assembly 244 to cool it, and finally returns to the second plate heat exchanger 104 to release the heat in the coolant to the refrigerant side. After the coolant in the hot water flow path passes through the first plate heat exchanger 102 to exchange heat with the high-temperature refrigerant and heat it up, it is pumped out by the second water pump 202, only passes through the cabin heat exchanger 241, and exchanges heat with it to achieve heating of the passenger compartment. Finally, the coolant returns to the first plate heat exchanger 102. When there is no heating demand in the passenger compartment, the compressor 101 and the second water pump 202 are shut down, and the first water pump 201 works normally, that is, the refrigerant flow path and the coolant hot water flow path stop working, and the coolant cold water flow path continues to work. At this time, the coolant in the cold water flow path absorbs heat through the battery heat exchange assembly 244, passes through the second plate heat exchanger 104, and is pumped to the cabin heat exchanger 243 by the first water pump 201. At this time, the external fan is started, the vehicle air intake grille is opened, and the heat absorbed by the coolant is dissipated into the air by the cabin heat exchanger 243.

[0095] The third operation mode is the full heating operation mode, see attached Figure 8The flow direction of the coolant cold water flow path is: the first water pump 201 → the eleventh external port 2111 → the fourth external port 2104 → the outboard heat exchanger 243 → the ninth external port 2109 → the second external port 2102 → the second plate heat exchanger 104 → the first water pump 201; the flow direction of the coolant hot water flow path is: the second water pump 202 → the twelfth external port 2112 → the sixth external port 2106 → the inboard heat exchanger 241 → the seventh external port 2107 → the third external port 2103 → the battery heat exchange assembly 244 → the tenth external port 2110 → the first external port 2101 → the first plate heat exchanger 102 → the second water pump 202. In this operation mode, when the electric drive heat exchange assembly 242 needs to dissipate heat, the first three-way valve 231 and the second three-way valve 232 are controlled to connect the electric drive heat exchange assembly 242 to the fourth external port 2104 and the ninth external port 2109 .

[0096] In the third operation mode, the coolant cold water flow path is responsible for cooling and dissipating the electric drive heat exchange assembly 242 and absorbing heat from the outside air, and the hot water flow path is responsible for heating and heating the passenger compartment and the battery heat exchange assembly 244. After the coolant in the cold water flow path passes through the second plate heat exchanger 104 to exchange heat with the low-temperature refrigerant and cool it down, it is pumped out by the first water pump 201, and then goes to the outboard heat exchanger 243 to exchange heat with the outside air, and then returns to the second plate heat exchanger 104 after absorbing heat from the air. After the coolant in the hot water flow path passes through the first plate heat exchanger 102 to exchange heat with the high-temperature refrigerant and heat it up, it is pumped out by the second water pump 202, first passes through the inboard heat exchanger 241 to heat the passenger compartment, and then passes to the battery heat exchange assembly 244 for heat exchange, heating it, and finally returns to the first plate heat exchanger 102.

[0097] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A heat exchange integrated module, characterized in that: The invention comprises a heat exchange component, wherein the heat exchange component comprises a refrigerant flow channel plate (100) made of metal material, a first plate heat exchanger (102), an electronic expansion valve (103), and a second plate heat exchanger (104). A first refrigerant flow channel is formed in the refrigerant flow channel plate (100), the first refrigerant flow channel has a flow channel refrigerant inlet and a flow channel refrigerant outlet, the first plate heat exchanger (102) has a first refrigerant heat exchange part and a first coolant heat exchange part capable of realizing heat exchange, the refrigerant outlet pipe of the first refrigerant heat exchange part is inserted into the flow channel refrigerant inlet, the second plate heat exchanger (104) has a second refrigerant heat exchange part and a second coolant heat exchange part capable of realizing heat exchange, the refrigerant inlet pipe of the second refrigerant heat exchange part is inserted into the flow channel refrigerant outlet, the first refrigerant flow channel also has a throttling port, and the electronic expansion valve (103) is assembled on the throttling port to throttle the refrigerant flowing in the first refrigerant flow channel.

2. The heat exchange integrated module according to claim 1, characterized in that: The heat exchange component also includes a gas-liquid separator (105), and a second refrigerant flow channel is also formed in the refrigerant flow channel plate (100), the flow channel refrigerant inlet of the second refrigerant flow channel is connected to the refrigerant outlet pipe of the second refrigerant heat exchange part of the second plate heat exchanger (104), and the gas-liquid separator (105) is assembled at the flow channel refrigerant outlet of the second refrigerant flow channel.

3. The heat exchange integrated module according to claim 2, characterized in that: It also includes a flow path switching component, which includes a valve body substrate (210) and a multi-way valve (200), wherein the multi-way valve (200) is assembled on a first side of the valve body substrate (210), and the heat exchange component is assembled on a second side of the valve body substrate (210), wherein the first side and the second side are respectively one of the two opposite sides of the valve body substrate (210).

4. The heat exchange integrated module according to claim 3, characterized in that: The multi-way valve (200) comprises a valve body shell formed on the first side surface and a valve core (220) located in the valve body shell, a flow channel cavity is formed on the side wall of the valve core (220) and on the end surface close to the first side surface, and a plurality of flow channel ports are formed on the valve body shell.

5. The heat exchange integrated module according to claim 4, characterized in that: The multi-way valve (200) is a twelve-way valve, the flow channel ports include a first external port (2101), a second external port (2102), a third external port (2103), a fourth external port (2104), a fifth external port (2105), a sixth external port (2106), a seventh external port (2107), an eighth external port (2108), a ninth external port (2109), a tenth external port (2110), an eleventh external port (2111), and a twelfth external port (2112); the flow channel cavity includes a first flow channel cavity (2201), a second flow channel cavity (2202), a third flow channel cavity (2203), The fourth flow channel cavity (2204), the fifth flow channel cavity (2205), the sixth flow channel cavity (2206), the seventh flow channel cavity (2207), and the eighth flow channel cavity (2208), wherein the sixth flow channel cavity (2206), the seventh flow channel cavity (2207), and the eighth flow channel cavity (2208) are located on the end surface of the valve core (220), and the first flow channel cavity (2201), the second flow channel cavity (2202), the third flow channel cavity (2203), the fourth flow channel cavity (2204), and the fifth flow channel cavity (2205) are located on the side wall of the valve core (220), and the first flow channel cavity (2201) is connected to the eighth flow channel cavity (2208).

6. The heat exchange integrated module according to claim 5, characterized in that: The first external port (2101) and the second external port (2102) are arranged to protrude from the second side surface; the cooling liquid inlet of the first cooling liquid heat exchange part of the first plate heat exchanger (102) is plugged into the first external port (2101); and the cooling liquid inlet of the second cooling liquid heat exchange part of the second plate heat exchanger (104) is plugged into the second external port (2102).

7. The heat exchange integrated module according to claim 5, characterized in that: A first water pump (201) and a second water pump (202) are also assembled on the first side surface; a first adapter interface (2113) and a second adapter interface (2114) protruding from the second side surface are formed on the valve body substrate (210); the coolant outlet of the first coolant heat exchange portion of the first plate heat exchanger (102) is connected to the pump inlet of the second water pump (202) via the second adapter interface (2114); the coolant outlet of the second coolant heat exchange portion of the second plate heat exchanger (104) is connected to the pump inlet of the first water pump (201) via the first adapter interface (2113); and the first adapter interface (2113) and the second adapter interface (2114) are both connected from the first side surface to the second side surface.

8. A vehicle thermal management system, characterized in that: The heat exchange integrated module comprises the heat exchange integrated module according to claim 7, and further comprises a compressor (101), an in-cabin heat exchanger (241), an out-cabin heat exchanger (243) and a battery heat exchange assembly (244), wherein the air intake port of the compressor (101) is connected to the air outlet port of the gas-liquid separator (105), the air exhaust port of the compressor (101) is connected to the refrigerant inlet pipe of the first refrigerant heat exchange part of the first plate heat exchanger (102), the pump outlet of the first water pump (201) is connected to the eleventh external port (2111), the pump outlet of the second water pump (202) is connected to the twelfth external port (2112), the first end of the in-cabin heat exchanger (24 ... The first port of the battery heat exchange assembly (244) is connected to the third external port (2103), and the second port of the battery heat exchange assembly (244) is connected to the tenth external port (2110).

9. The vehicle thermal management system according to claim 8, characterized in that: It also includes an electrically driven heat exchange assembly (242), wherein a first port of the electrically driven heat exchange assembly (242) is controllably connected to the fourth external port (2104) and the fifth external port (2105) via a first three-way valve (231), and a second port of the electrically driven heat exchange assembly (242) is controllably connected to the ninth external port (2109) and the tenth external port (2110) via a second three-way valve (232).

10. A control method for a vehicle thermal management system according to claim 8 or 9, characterized in that: The steps include: Obtaining an operating mode of the vehicle thermal management system; The operating states of the compressor (101), the first water pump (201), and the second water pump (202) and the flow path switching of the multi-way valve (200) are controlled according to the acquired operating mode.

11. The control method according to claim 10, characterized in that: When the operation mode is the first operation mode, the compressor (101), the first water pump (201) and the second water pump (202) are controlled to operate, and the first external port (2101) and the ninth external port (2109), the second external port (2102) and the tenth external port (2110), the third external port (2103) and the eighth external port (2108), the fourth external port (2104) and the twelfth external port (2112), and the fifth external port (2105) and the eleventh external port (2111) are controlled to be connected respectively; or, When the operation mode is the second operation mode, the compressor (101), the first water pump (201) and the second water pump (202) are controlled to operate, and the first external port (2101) and the seventh external port (2107), the second external port (2102) and the tenth external port (2110), the third external port (2103) and the ninth external port (2109), the fourth external port (2104) and the eleventh external port (2111), and the sixth external port (2106) and the twelfth external port (2112) are controlled to be connected respectively; or, When the operation mode is the third operation mode, the compressor (101), the first water pump (201) and the second water pump (202) are controlled to operate, and the first external port (2101) and the tenth external port (2110), the second external port (2102) and the ninth external port (2109), the third external port (2103) and the seventh external port (2107), the fourth external port (2104) and the eleventh external port (2111), and the sixth external port (2106) and the twelfth external port (2112) are controlled to be connected respectively.

12. The control method according to claim 11, characterized in that: When the vehicle thermal management system includes an electric drive heat exchange assembly (242): When the operation mode is the first operation mode, the first three-way valve (231) is controlled to connect the electric drive heat exchange assembly (242) with the fifth external port (2105), and the second three-way valve (232) is controlled to connect the electric drive heat exchange assembly (242) with the tenth external port (2110); or, When the operation mode is the second operation mode, the first three-way valve (231) is controlled to connect the electric drive heat exchange assembly (242) with the fourth external port (2104), and the second three-way valve (232) is controlled to connect the electric drive heat exchange assembly (242) with the tenth external port (2110); or, When the operating mode is the third operating mode and the electric drive heat exchange assembly (242) needs to be cooled, the first three-way valve (231) is also controlled to connect the electric drive heat exchange assembly (242) with the fourth external port (2104), and the second three-way valve (232) is controlled to connect the electric drive heat exchange assembly (242) with the ninth external port (2109).

13. The control method according to claim 11, characterized in that: When the operation mode is the second operation mode and heating is not required in the cabin, the compressor (101) and the second water pump (202) are controlled to stop running; and / or, when the operation mode is the second operation mode, the air inlet grille corresponding to the off-cabin heat exchanger (243) is controlled to be closed and the fan is not started.

14. The control method according to claim 13, characterized in that: When the vehicle thermal management system operates in the second operating mode and the compressor (101) and the second water pump (202) stop running, the air inlet grille corresponding to the outboard heat exchanger (243) is controlled to open and the fan is started.

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