Heat exchange assembly, battery device, heat management system and vehicle

Abstract

According to the heat exchange assembly, the battery device, the heat management system and the vehicle, the heat exchange assembly comprises a base plate and at least two heat exchange mechanisms arranged on the base plate, and the at least two heat exchange mechanisms are located on the same side face of the base plate and can conduct heat exchange with corresponding heat exchange objects. The substrate and the at least two heat exchange mechanisms arranged on the substrate are arranged, and the at least two heat exchange mechanisms are located on the same side face of the substrate and can exchange heat with the corresponding heat exchange objects, so that integrated arrangement of multiple parts is achieved, and heat exchange of multiple positions is achieved at the same time; the problems that the number of vehicle interfaces is increased, the size is increased, and assembly is difficult due to the fact that the number of parts of an existing thermal management system is increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly relates to a heat exchange component, a battery device, a thermal management system and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles, the thermal management of new energy vehicles has become increasingly important. The current requirements for thermal management functions are more complex and diverse, resulting in a large increase in the number of components of the thermal management system. The increase in the number of components leads to problems such as an increase in the number of vehicle interfaces, an increase in volume, and difficult assembly. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a heat exchange component, a battery device, a thermal management system and a vehicle to solve the problem of the increase in the number of components of the vehicle thermal management system.

[0004] To achieve the purpose of the utility model, the following technical solutions are provided:

[0005] In a first aspect, the utility model provides a heat exchange component for a battery device, and the heat exchange component includes: a substrate; at least two heat exchange mechanisms arranged on the substrate, and the at least two heat exchange mechanisms are located on the same side of the substrate and can perform heat exchange with their respective corresponding heat exchange objects.

[0006] In an implementation manner, the heat exchange mechanism includes a liquid cooling member and a first direct cooling member, the substrate includes a first area, and both the liquid cooling member and the first direct cooling member are located on the same side of the first area.

[0007] In an implementation manner, the liquid cooling member includes a power distribution assembly liquid cooling member, the first direct cooling member includes a heat pump heat absorption direct cooling member, and both the power distribution assembly liquid cooling member and the heat pump heat absorption direct cooling member are located on the same side of the first area; the direction away from the power distribution assembly liquid cooling member and the heat pump heat absorption direct cooling member in the first area is suitable for arranging a power distribution assembly.

[0008] In an implementation manner, the power distribution assembly liquid cooling member includes a power distribution assembly liquid cooling channel, the heat pump heat absorption direct cooling member includes a heat pump heat absorption channel, the power distribution assembly liquid cooling channel is suitable for allowing a coolant to flow, and the heat pump heat absorption channel is suitable for allowing a refrigerant to flow.

[0009] In an implementation manner, the width of the power distribution assembly liquid cooling channel is greater than the width of the heat pump heat absorption channel, and the orthographic projection of the heat pump heat absorption channel on the substrate falls within the orthographic projection of the power distribution assembly liquid cooling channel on the substrate.

[0010] In one embodiment, the positive projection of the heat absorption flow channel of the heat pump on the substrate is adjacent to the positive projection of the liquid cooling flow channel of the power distribution assembly on the substrate.

[0011] In one embodiment, the liquid cooling component of the power distribution assembly further includes power distribution assembly liquid cooling joints respectively arranged at the inlet and outlet of the liquid cooling flow channel of the power distribution assembly; the heat absorption direct cooling component of the heat pump further includes heat pump heat absorption direct cooling joints respectively arranged at the inlet and outlet of the heat absorption flow channel of the heat pump.

[0012] In one embodiment, the heat exchange mechanism further includes a second direct cooling component, the substrate further includes a second area, and the second direct cooling component is located in the first area or the second area; the first area and the second area do not overlap.

[0013] In one embodiment, the second direct cooling component includes a cell direct cooling component, the cell direct cooling component is located on one side surface of the second area, and the other side surface of the second area is suitable for arranging cells.

[0014] In one embodiment, the cell direct cooling component and the heat pump heat absorption direct cooling component are arranged on the same side surface of the substrate.

[0015] In one embodiment, the cell direct cooling component includes a cell direct cooling and heat exchange flow channel and cell direct cooling joints respectively arranged at the inlet and outlet of the cell direct cooling and heat exchange flow channel, and the cell direct cooling and heat exchange flow channel is suitable for the refrigerant to flow through.

[0016] In one embodiment, the widths of the cell direct cooling and heat exchange flow channel and the heat absorption flow channel of the heat pump are not greater than 15 mm, the distance between the cell direct cooling and heat exchange flow channels is not less than 4 mm, and the distance between the heat absorption flow channels of the heat pump is not less than 4 mm.

[0017] In one embodiment, the cell direct cooling and heat exchange flow channel and the heat absorption flow channel in the heat pump heat absorption direct cooling component are in the same plane, and the cell direct cooling joint and the heat pump heat absorption direct cooling joint on the heat absorption flow channel are integrally integrated.

[0018] In one embodiment, a heat insulation component is further arranged between the cell direct cooling and heat exchange flow channel and the heat absorption flow channel of the heat pump.

[0019] In a second aspect, the present invention further provides a battery device, including a housing, a cell, a power distribution assembly, and the heat exchange assembly according to any one of the various embodiments in the first aspect. The cell, the power distribution assembly, and the heat exchange assembly are all arranged in the housing, and the cell and the power distribution assembly are arranged on the heat exchange assembly.

[0020] In a third aspect, the present utility model further provides a thermal management system, comprising: a compressor; a first pipeline, communicating with the outlet of the compressor and connecting to the heat exchange assembly in any one of the various embodiments of the first aspect; a second pipeline, connecting to the heat exchange assembly; a gas-liquid separator; a third pipeline, communicating with the inlet of the gas-liquid separator and connecting to the heat exchange assembly; a fourth pipeline, communicating with the outlet of the gas-liquid separator and the inlet of the compressor.

[0021] In one embodiment, the thermal management system further comprises: a water pump; a fifth pipeline, connecting to the heat exchange assembly, with the water pump disposed on the fifth pipeline; a motor, disposed on the fifth pipeline; a three-way valve, disposed on the fifth pipeline and located between the outlet of the water pump and the inlet of the motor; a sixth pipeline, with one end communicating with the outlet of the three-way valve and the other end communicating with the inlet of the motor; a radiator, disposed on the sixth pipeline.

[0022] In one embodiment, the thermal management system further comprises: a seventh pipeline, communicating with the outlet of the compressor and connecting to the heat exchange assembly; a first condenser, disposed on the seventh pipeline; an eighth pipeline, communicating with the outlet of the compressor and connecting to the heat exchange assembly; a second condenser, disposed on the eighth pipeline; a ninth pipeline, connecting to the heat exchange assembly and communicating with the inlet of the gas-liquid separator.

[0023] In a fourth aspect, the present utility model further provides a vehicle, comprising the battery device described in the second aspect, or comprising the thermal management system described in the third aspect.

[0024] By providing a substrate and at least two heat exchange mechanisms disposed on the substrate, the at least two heat exchange mechanisms are located on the same side of the substrate and can perform heat exchange with their respective corresponding heat exchange objects, realizing the integrated setting of multiple components to simultaneously achieve heat exchange at multiple positions, and solving the problems such as the increase in the number of components of the current thermal management system leading to an increase in the number of vehicle interfaces, an increase in volume, and difficult assembly. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is a perspective view of a partial structure of a battery device in an embodiment;

[0027] Figure 2It is a bottom view of a heat exchange component of an embodiment;

[0028] Figure 3 It is an exploded view of a heat exchange component of an embodiment;

[0029] Figure 4 It is a side view of a heat exchange component of an embodiment;

[0030] Figure 5 It is Figure 4 The partial enlarged view at position A in

[0031] Figure 6 It is a top view of a flow channel plate of an embodiment;

[0032] Figure 7 It is a schematic structural diagram of a heat management system of an embodiment.

[0033] Explanation of reference numerals:

[0034] 100 - Heat exchange component;

[0035] 10 - Flow channel plate, 11 - First surface, 12 - Second surface, 110 - Fourth region, 120 - Third region, 101 - Cell direct cooling and direct heating flow channel, 102 - Power distribution assembly liquid cooling flow channel, 103 - Heat pump heat absorption flow channel;

[0036] 20 - Substrate, 21 - First region, 22 - Second region;

[0037] 30 - Cover plate;

[0038] 41 - Cell direct cooling joint, 42 - Heat pump heat absorption direct cooling joint, 421 - First pipe joint, 422 - Second pipe joint, 43 - Power distribution assembly liquid cooling joint, 431 - Third pipe joint, 432 - Fourth pipe joint;

[0039] 50 - Heat exchange mechanism, 51 - Power distribution assembly liquid cooling part, 52 - Heat pump heat absorption direct cooling part, 53 - Cell direct cooling part;

[0040] 60 - Heat insulation part, 61 - Dividing flow channel;

[0041] 200 - Cell, 300 - Power distribution assembly, 310 - Electric control module, 320 - Compressor, 330 - Power supply module, 340 - Power distribution module, 410 - Gas - liquid separator, 420 - Water pump, 430 - Motor, 440 - Radiator, 450 - First condenser, 460 - Second condenser;

[0042] G1 - The first pipeline, G11 - The first sub - pipeline, G12 - The second sub - pipeline, G2 - The second pipeline, G21 - The third sub - pipeline, G22 - The fourth sub - pipeline, G3 - The third pipeline, G4 - The fourth pipeline, G5 - The fifth pipeline, G51 - The fifth sub - pipeline, G52 - The sixth sub - pipeline, G53 - The seventh sub - pipeline, G6 - The sixth pipeline, G7 - The seventh pipeline, G8 - The eighth pipeline, G9 - The ninth pipeline;

[0043] F1 - The first valve, F2 - The second valve, F3 - The third valve, F4 - The fourth valve, F5 - The fifth valve, F6 - The three - way valve, F7 - The throttle valve, F8 - The electronic expansion valve, F9 - The check valve. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0046] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the present invention in the specification are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used in the present invention includes any and all combinations of one or more of the related listed items.

[0047] Next, some embodiments of the present invention will be described in detail in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0048] Please refer to Figures 1 to 3 , an embodiment of the present invention provides a heat exchange component 100 for a battery device. The heat exchange component 100 includes a substrate 20 and at least two heat exchange mechanisms 50 provided on the substrate. The at least two heat exchange mechanisms 50 are located on the same side of the substrate 20 and can perform heat exchange with their respective corresponding heat exchange objects.

[0049] Exemplarily, at least one heat exchange mechanism 50 is used for heat exchange with the power distribution assembly 300 of the battery device, and at least one heat exchange mechanism 50 is used for heat exchange with the battery cells 200 of the battery device. Optionally, the heat exchange mechanism 50 can perform heat exchange with the battery cells 200 and the power distribution assembly 300 through methods such as liquid cooling, air cooling, and natural convection heat dissipation, without limitation.

[0050] By providing the substrate 20 and at least two heat exchange mechanisms 50 provided on the substrate, the at least two heat exchange mechanisms 50 are located on the same side of the substrate 20 and can perform heat exchange with their respective corresponding heat exchange objects, achieving the integrated arrangement of multiple components to simultaneously achieve heat exchange at multiple positions, and solving the problems such as the increase in the number of components of the current thermal management system leading to an increase in the number of vehicle interfaces, an increase in volume, and difficult assembly.

[0051] Please refer to Figure 3 , the heat exchange mechanism 50 includes a liquid cooling component and a first direct cooling component, the substrate 20 includes a first region 21, and both the liquid cooling component and the first direct cooling component are located on the same side of the first region 21.

[0052] By providing that the heat exchange mechanism 50 includes a liquid cooling component and a first direct cooling component, the substrate 20 includes a first region 21, and both the liquid cooling component and the first direct cooling component are located on the same side of the first region 21, the distance between the liquid cooling component and the first direct cooling component is reduced, which is beneficial for heat exchange between the liquid cooling component and the first direct cooling component and improves the heat exchange efficiency.

[0053] Please refer to Figure 3 , the liquid cooling component includes a power distribution assembly liquid cooling component 51, the first direct cooling component includes a heat pump heat absorption direct cooling component 52, both the power distribution assembly liquid cooling component 51 and the heat pump heat absorption direct cooling component 52 are located on the same side of the first region 21, and the direction away from the power distribution assembly liquid cooling component 51 and the heat pump heat absorption direct cooling component 52 in the first region 21 is suitable for arranging the power distribution assembly 300.

[0054] Optionally, the power distribution assembly liquid cooling component 51 is used for heat exchange with the power distribution assembly, and the heat pump heat absorption direct cooling component 52 is used for heat exchange with the power distribution assembly liquid cooling component 51.

[0055] By providing that the liquid cooling component includes a power distribution assembly liquid cooling component 51, the first direct cooling component includes a heat pump heat absorption direct cooling component 52, both the power distribution assembly liquid cooling component 51 and the heat pump heat absorption direct cooling component 52 are located on the same side of the first region 21, and the direction away from the power distribution assembly liquid cooling component 51 and the heat pump heat absorption direct cooling component 52 in the first region 21 is suitable for arranging the power distribution assembly 300, the distance between the power distribution assembly liquid cooling component 51 and the heat pump heat absorption direct cooling component 52 is reduced, which is beneficial for heat exchange between the heat pump heat absorption direct cooling component 52 and the power distribution assembly liquid cooling component 51 and improves the heat exchange efficiency.

[0056] Please refer to Figures 1 to 3, the liquid cooling component 51 of the power distribution assembly includes a liquid cooling flow channel 102 of the power distribution assembly, and the heat pump heat absorption and direct cooling component 52 includes a heat pump heat absorption flow channel 103. The liquid cooling flow channel 102 of the power distribution assembly is adapted for the coolant to flow, and the heat pump heat absorption flow channel 103 is adapted for the refrigerant to flow.

[0057] Exemplarily, the heat exchange assembly 100 further includes a flow channel plate 10. The flow channel plate 10 includes a third region 120. The flow channel plate 10 further includes opposite first surface 11 and second surface 12. Part of the structure of the third region 120 is recessed from the first surface 11 towards the second surface 12, and another part of the structure is recessed from the second surface 12 towards the first surface 11. The first region 21 of the substrate 20 covers the first surface 11 of the third region 120 and jointly encloses with the third region 120 to form the liquid cooling flow channel 102 of the power distribution assembly. The heat exchange assembly further includes a cover plate 30. The cover plate 30 covers the second surface 12 of the third region 120 and jointly encloses with the third region 120 to form the heat pump heat absorption flow channel 103. Wherein, the part of the substrate 20 facing away from the flow channel plate 10 and corresponding to the first region 21 is adapted to be provided with the power distribution assembly 300. The liquid cooling flow channel 102 of the power distribution assembly is adapted for the coolant to flow, and the heat pump heat absorption flow channel 103 is adapted for the refrigerant to flow.

[0058] Optionally, the first surface 11 and the second surface 12 are surfaces opposite to each other in their thickness directions. The first surface 11 and the second surface 12 can be flat surfaces, curved surfaces, etc., without limitation.

[0059] The flow channel plate 10 can be formed by a stamping process. Since part of the structure of the third region 120 is recessed from the first surface 11 towards the second surface 12, then this part of the structure can be raised from the second surface 12, which is also equivalent to having a structure recessed from the top of the raised part from the second surface 12 towards the first surface 11. When observing from the side of the first surface 11 facing away from the second surface 12, a groove is formed on the first surface 11. When observing from the side of the second surface 12 facing away from the first surface 11, a protrusion is formed on the second surface 12.

[0060] It can be understood that since part of the structure of the third region 120 is also recessed from the second surface 12 towards the first surface 11, that is, the third region 120 forms a groove on the second surface 12 and a protrusion on the first surface 11.

[0061] The substrate 20 can be a flat plate, a bent plate, etc. The substrate 20 is in close contact with the first surface 11 and can be fixed by welding or other means. Since the first surface 11 has a groove in the third region 120, the substrate 20 can close the groove on the first surface 11 at the third region 120 to form the liquid cooling flow channel 102 of the power distribution assembly.

[0062] The cover plate 30 can be a flat plate, a bent plate, etc. The cover plate 30 is in close contact with the second surface 12 of the third region 120 and can be fixed by welding or other means. Since the second surface 12 has a groove in the third region 120, the cover plate 30 can seal the groove of the second surface 12 of the third region 120 to form the heat pump heat absorption flow channel 103. Among them, the distribution assembly liquid cooling flow channel 102 can occupy as much as possible the third region 120 of the first surface 11.

[0063] Among them, the materials of the flow channel plate 10, the substrate 20 and the cover plate 30 have high strength and thermal conductivity. The specific materials can be aluminum alloy, ferroalloy, etc. The materials of the three can be the same or different, without limitation.

[0064] The refrigerant can specifically be a medium capable of gas-liquid phase change, specifically R134a, R-404A, R-410A, etc., without limitation. The coolant can be water, organic solvent, etc., without limitation. The coolant flows in the distribution assembly liquid cooling flow channel 102, and can heat or cool the distribution assembly 300 corresponding to the third region 120. The refrigerant flows in the heat pump heat absorption flow channel 103, and can exchange heat with the coolant in the distribution assembly liquid cooling flow channel 102 through the flow channel plate 10.

[0065] In the heat exchange assembly 100 of the embodiment of the present utility model, by providing that the distribution assembly liquid cooling member 51 includes the distribution assembly liquid cooling flow channel 102, and the heat pump heat absorption direct cooling member 52 includes the heat pump heat absorption flow channel 103, the distribution assembly liquid cooling flow channel 102 is suitable for the coolant to flow, the heat pump heat absorption flow channel 103 is suitable for the refrigerant to flow, the coolant flowing in the distribution assembly liquid cooling flow channel 102 can exchange heat with the distribution assembly 300, and the refrigerant flowing in the heat pump heat absorption flow channel 103 can exchange heat with the coolant flowing in the distribution assembly liquid cooling flow channel 102, realizing the integrated setting of multiple components to simultaneously realize heat exchange at multiple positions, and solving the problems such as the increase in the number of components of the current thermal management system resulting in an increase in the number of vehicle interfaces, an increase in volume, and difficult assembly.

[0066] In the current battery device, the battery cell 200 and the distribution assembly 300 adopt independent heat exchange structures. The refrigerant flowing out from the flow channel of the heat exchange structure corresponding to the battery cell 200 and the coolant flowing out from the flow channel of the heat exchange structure corresponding to the distribution assembly 300 usually exchange heat outside the battery device, which requires more components, and also requires components to be set inside and outside the battery device respectively for heat exchange, resulting in problems such as an increase in the number of components leading to an increase in the number of vehicle interfaces, an increase in volume, and difficult assembly. The embodiment of the present utility model provides a heat exchange assembly 100 for these problems. The heat exchange assembly 100 integrates the distribution assembly liquid cooling flow channel 102 and the heat pump heat absorption flow channel 103, realizing the integrated setting of the heat exchange structure. The heat exchange structure is all set inside the battery device, and there is no need to set heat exchange components outside the battery device.

[0067] Please refer to Figures 1 to 3 , the heat exchange mechanism 50 further includes a second direct cooling member, the substrate 20 further includes a second region 22, the second direct cooling member is located in the first region 21 or the second region 22, and the first region 21 does not overlap with the second region 22. Optionally, the second direct cooling member is used to perform heat exchange with the battery cell 200 and perform heat exchange with the aforementioned power distribution assembly liquid cooling member 51 through the aforementioned heat pump heat absorption direct cooling member 52.

[0068] By providing that the heat exchange mechanism 50 further includes a second direct cooling member, the substrate 20 further includes a second region 22, the second direct cooling member is located on one side of the first region 21 or the second region 22, and the first region 21 does not overlap with the second region 22, the second direct cooling member can perform heating or cooling operations on the battery cell 200, so that the temperature of the battery cell 200 is within a preset temperature range, preventing the battery cell 200 from failing due to overheating and overcooling, and the arrangement of the second direct cooling member is flexible and can change with the change of the arrangement position of the battery cell 200.

[0069] Please refer to Figures 1 to 3 , the second direct cooling member includes a battery cell direct cooling member 53, the battery cell direct cooling member 53 is located on one side of the second region 22, and the other side of the second region 22 is suitable for arranging a battery cell.

[0070] By providing that the second direct cooling member includes a battery cell direct cooling member 53, the battery cell direct cooling member 53 is located on one side of the second region 22, and the other side of the second region 22 is suitable for arranging a battery cell, the heat exchange mechanism 50 can perform heating or cooling operations on the battery cell 200, so that the temperature of the battery cell 200 is within a preset temperature range, preventing the battery cell 200 from failing due to overheating and overcooling.

[0071] Please refer to Figures 1 to 3 , the battery cell direct cooling member 53 and the heat pump heat absorption direct cooling member 52 are arranged on the same side of the substrate 20.

[0072] By providing that the battery cell direct cooling member 53 and the heat pump heat absorption direct cooling member 52 are arranged on the same side of the substrate 20, the distance between the battery cell direct cooling member 53 and the heat pump heat absorption direct cooling member 52 is reduced, which is beneficial to the heat exchange between the battery cell direct cooling member 53 and the heat pump heat absorption direct cooling member 52 and improves the heat exchange efficiency.

[0073] Please refer to Figures 1 to 3 , the battery cell direct cooling member 53 includes a battery cell direct cooling and heating flow channel 101 and battery cell direct cooling joints 41 respectively arranged at the inlet and outlet of the battery cell direct cooling and heating flow channel 101, and the battery cell direct cooling and heating flow channel 101 is suitable for the refrigerant to flow through.

[0074] Specifically, the flow channel plate 10 further includes a fourth region 110. The third region 120 does not overlap with the fourth region 110. Part of the structure of the fourth region 110 is recessed from the first surface 11 towards the second surface 12. The second region 22 of the substrate 20 covers the first surface 11 of the fourth region 110 and jointly encloses a direct cooling and direct heating flow channel 101 for the battery cell with the fourth region 110. Among them, the part of the substrate 20 facing away from the flow channel plate 10 and corresponding to the second region 22 is suitable for arranging the battery cell 200, and the direct cooling and direct heating flow channel 101 for the battery cell is suitable for the refrigerant to flow through.

[0075] Optionally, the fourth region 110 and the third region 120 divide the first surface 11 into different regions. Correspondingly, the second surface 12 is also divided into different regions. For example, both the first surface 11 and the second surface 12 of the flow channel plate 10 are approximately rectangular, and the fourth region 110 and the third region 120 are also rectangular. The fourth region 110 and the third region 120 are arranged in sequence along the length direction of the flow channel plate 10 on the first surface 11, and are also arranged in sequence on the second surface 12. The region of the fourth region 110 on the first surface 11 is opposite to the region of the fourth region 110 on the second surface 12. Correspondingly, the region of the third region 120 on the first surface 11 is opposite to the region of the third region 120 on the second surface 12. Corresponding to the aforementioned third region 120, the fourth region 110 forms a protrusion on the first surface 11.

[0076] Among them, the direct cooling and direct heating flow channel 101 for the battery cell can occupy as much as possible the fourth region 110 of the first surface 11. The refrigerant flows in the direct cooling and direct heating flow channel 101 for the battery cell, and can heat or cool the battery cell 200 corresponding to the fourth region 110.

[0077] The refrigerant also flows in the direct cooling and direct heating flow channel 101 for the battery cell. Similarly, considering the pressure resistance of the heat exchange component 100, the width of the direct cooling and direct heating flow channel 101 for the battery cell can also be relatively narrow. The width of the direct cooling and direct heating flow channel 101 for the battery cell can be approximately equal to that of the heat pump heat absorption flow channel 103. Of course, the widths of the direct cooling and direct heating flow channel 101 for the battery cell and the heat pump heat absorption flow channel 103 may not be equal, and there is no limitation.

[0078] In one embodiment, referring to Figure 1 、 Figures 3 to 5 , the battery cell direct cooling joint 41 is connected to the substrate 20, and the battery cell direct cooling joint 41 is simultaneously communicated with the inlet and outlet of the direct cooling and direct heating flow channel 101 for the battery cell.

[0079] Among them, the substrate 20 may be provided with a through hole (not shown) penetrating along the thickness direction. After the battery cell direct cooling joint 41 is connected to the substrate 20, the battery cell direct cooling joint 41 is communicated with the inlet and outlet of the direct cooling and direct heating flow channel 101 for the battery cell through the through hole of the substrate 20.

[0080] The inlet and outlet of the direct cooling and direct heating channel 101 of the battery cell can be arranged adjacent to each other. For example, the inlet and outlet of the direct cooling and direct heating channel 101 of the battery cell are close to the edge of the flow channel plate 10 and are located on one side of the fourth region 110 away from the third region 120. In this way, after the direct cooling joint 41 of the battery cell is arranged on the substrate 20, the occupied space for the layout of the battery cell 200 is minimized as much as possible. The direct cooling and direct heating channel 101 of the battery cell can have only one inlet and one outlet. The direct cooling and direct heating channel 101 of the battery cell extends in a curved shape in the fourth region 110 starting from the inlet, and can also have a bifurcating structure with one input splitting into multiple outputs and a converging structure with multiple inputs combining into one output in the middle of the direct cooling and direct heating channel 101 of the battery cell, and finally the direct cooling and direct heating channel 101 extends to the outlet.

[0081] There are two mutually separated internal channels (not shown) inside the direct cooling joint 41 of the battery cell. One of the internal channels is communicated with the inlet of the direct cooling and direct heating channel 101 of the battery cell, and the other internal channel is communicated with the outlet of the direct cooling and direct heating channel 101 of the battery cell. The direct cooling joint 41 of the battery cell can be connected to two connecting pipes (not shown). Refrigerant can be input into the inlet of the direct cooling and direct heating channel 101 of the battery cell through one of the internal channels of the direct cooling joint 41 via one connecting pipe, and the refrigerant flowing out from the outlet of the direct cooling and direct heating channel 101 of the battery cell can flow into the other connecting pipe through the other internal channel of the direct cooling joint 41 of the battery cell.

[0082] By providing that the direct cooling component 53 of the battery cell includes the direct cooling and direct heating channel 101 of the battery cell and the direct cooling joints 41 respectively arranged at the inlet and outlet of the direct cooling and direct heating channel 101 of the battery cell, the direct cooling and direct heating channel 101 of the battery cell is suitable for the flow of refrigerant, so that the battery cell 200 can exchange heat with the refrigerant passing through the direct cooling and direct heating channel 101 of the battery cell, realizing the thermal management of the battery cell 200.

[0083] A specific method of using the heat exchange assembly 100 is as follows: Under the low-temperature heating condition, the initial temperature of the battery cell 200 is very low and needs to be heated to a certain temperature to reach the normal operating temperature. The high-temperature and high-pressure gaseous refrigerant flows into the direct cooling and direct heating channel 101 of the battery cell. The gaseous refrigerant releases heat to the battery cell 200 through the substrate 20, thereby heating the battery cell 200, and the state of the refrigerant changes to liquid. The liquid refrigerant flows out from the direct cooling and direct heating channel 101 of the battery cell and then flows into the heat pump suction channel 103; Since a large amount of energy is released when the power distribution assembly 300 is started, the coolant flowing into the liquid cooling channel 102 of the power distribution assembly absorbs the heat of the power distribution assembly 300 transferred from the substrate 20, and then exchanges heat with the refrigerant in the heat pump suction channel 103 through the flow channel plate 10, so that the refrigerant absorbs the heat of the coolant, and the refrigerant changes from liquid to gaseous or a gas-liquid mixture state again.

[0084] Reference Figure 1 、 Figures 3 to 5The power distribution assembly liquid cooling component 51 also includes a power distribution assembly liquid cooling joint 43 respectively arranged at the inlet and outlet of the power distribution assembly liquid cooling channel 102, and the heat pump heat absorption direct cooling component 52 also includes a heat pump heat absorption direct cooling joint 42 respectively arranged at the inlet and outlet of the heat pump heat absorption channel 103.

[0085] Specifically, the heat pump heat absorption direct cooling joint 42 includes a first pipe joint 421 and a second pipe joint 422. The first pipe joint 421 and the second pipe joint 422 are both connected to the cover plate 30, and the first pipe joint 421 is connected to the inlet of the heat pump heat absorption channel 103 and the outlet of the battery cell direct cooling joint 41, and the second pipe joint 422 is connected to the outlet of the heat pump heat absorption channel 103.

[0086] Among them, the cover plate 30 may also be provided with a through hole (not shown) penetrating along the thickness direction. After the first pipe joint 421 and the second pipe joint 422 are connected to the cover plate 30, the first pipe joint 421 is connected to the inlet of the heat pump heat absorption channel 103 through the through hole of the cover plate 30, and the second pipe joint 422 is connected to the outlet of the heat pump heat absorption channel 103 through another through hole of the cover plate 30.

[0087] The inlet and outlet of the heat pump heat absorption channel 103 can be set in the direction of the third area 120 away from the fourth area 110, for example, near the two ends in the width direction of the flow channel plate 10. This is because the occupied area of ​​the battery cell 200 is much larger than the occupied area of ​​the power distribution assembly 300, that is, the area of ​​the fourth area 110 is much larger than the area of ​​the third area 120, that is, the area of ​​the third area 120 is narrow and it is not easy to set the heat pump heat absorption channel 103 to a structure similar to the aforementioned battery cell direct cooling and direct heating channel 101. Therefore, the heat pump heat absorption channel 103 can basically only be set up with a structure that extends from one end to the other end along the width direction of the flow channel plate 10. The inlet and outlet of the heat pump heat absorption channel 103 can be respectively set close to the two side edges in the width direction of the flow channel plate 10, and are located on the side of the fourth area 110 away from the third area 120, so as to maximize the area of ​​the refrigerant flowing through the heat pump heat absorption channel 103.

[0088] The first pipe joint 421 and the second pipe joint 422 each have an internal flow channel (not shown) inside, and the internal flow channel of the first pipe joint 421 is connected to the inlet of the heat pump heat absorption flow channel 103. At the same time, the first pipe joint 421 can be connected to a connecting pipe, and the connecting pipe is also connected to the internal flow channel of the battery cell direct cooling joint 41 that is connected to the outlet of the battery cell direct cooling and direct heating flow channel 101. The refrigerant flowing out of the outlet of the battery cell direct cooling and direct heating flow channel 101 can flow into the connecting pipe through one of the internal flow channels of the battery cell direct cooling joint 41, and then flow into the internal flow channel of the first pipe joint 421 through the connecting pipe, and finally flow into the inlet of the heat pump heat absorption flow channel 103. The refrigerant flowing out of the outlet of the heat pump heat absorption flow channel 103 flows out through the second pipe joint 422.

[0089] Optionally, referring to Figure 1 and Figures 3 to 5 , the liquid-cooling joint 43 of the power distribution assembly includes a third pipe joint 431 and a fourth pipe joint 432. Both the third pipe joint 431 and the fourth pipe joint 432 are connected to the substrate 20. The third pipe joint 431 is communicated with the inlet of the liquid-cooling flow channel 102 of the power distribution assembly, and the fourth pipe joint 432 is communicated with the outlet of the liquid-cooling flow channel 102 of the power distribution assembly. The third pipe joint 431 corresponds to the second pipe joint 422, and the fourth pipe joint 432 corresponds to the first pipe joint 421. The third pipe joint 431 and the second pipe joint 422 are correspondingly arranged, that is, they can be substantially directly opposite in the thickness direction of the flow channel plate 10. The fourth pipe joint 432 and the first pipe joint 421 are correspondingly arranged, that is, they can be substantially directly opposite in the thickness direction of the flow channel plate 10. Thus, the refrigerant enters the heat absorption flow channel 103 of the heat pump through the first pipe joint 421 and flows out from the second pipe joint 422, while the coolant enters the liquid-cooling flow channel 102 of the power distribution assembly through the third pipe joint 431 and flows out from the fourth pipe joint 432, which can make the flow directions of the refrigerant and the coolant opposite, so as to maximize the heat exchange effect between the refrigerant and the coolant.

[0090] Optionally, the third pipe joint 431 may also correspond to the first pipe joint 421, and the fourth pipe joint 432 may also correspond to the second pipe joint 422, so that the flow directions of the refrigerant and the coolant are the same, and a heat exchange effect can also be achieved.

[0091] Optionally, the third pipe joint 431 may not correspond to the first pipe joint 421 and the second pipe joint 422, and the fourth pipe joint 432 may also not correspond to the first pipe joint 421 and the second pipe joint 422. In short, as long as the heat exchange between the refrigerant and the coolant can be achieved, there is no limitation.

[0092] By providing that the liquid-cooling component 51 of the power distribution assembly further includes liquid-cooling joints 43 respectively arranged at the inlet and outlet of the liquid-cooling flow channel 102 of the power distribution assembly, and the heat absorption direct-cooling component 52 of the heat pump further includes heat absorption direct-cooling joints 42 respectively arranged at the inlet and outlet of the heat absorption flow channel 103 of the heat pump, the coolant in the liquid-cooling component 51 of the power distribution assembly and the refrigerant in the heat absorption direct-cooling component 52 of the heat pump can flow through the respective pipe joints, further improving the heat exchange efficiency.

[0093] In one embodiment, referring to Figure 6 , the width of the liquid-cooling flow channel 102 of the power distribution assembly is greater than the width of the heat absorption flow channel 103 of the heat pump, and the orthographic projection of the heat absorption flow channel 103 on the substrate 20 falls within the orthographic projection of the liquid-cooling flow channel 102 of the power distribution assembly on the substrate 20.

[0094] Specifically, Figure 6is a top view of the flow channel plate 10, in which it is shown that the openings formed by the recessed parts in the fourth area 110 and the third area 120 of the first surface 11 are grooves with the opening direction of the first surface 11 facing away from the second surface 12. The grooves on the first surface 11 are used to form the direct cooling and direct heating flow channel 101 of the battery cell in the fourth area 110 and the liquid cooling flow channel 102 of the power distribution assembly in the third area 120. Figure 6 It shows a protruding partial structure on the third area 120 of the first surface 11. The protruding part is recessed from the second surface 12 to the first surface 11 to form a groove with the opening direction of the second surface 12 facing away from the first surface 11. The protruding part is located in the groove of the liquid cooling flow channel 102 of the power distribution assembly and is used to form the heat absorption flow channel 103 of the heat pump.

[0095] Since the refrigerant flows in the heat absorption flow channel 103 of the heat pump and the pressure is relatively high, considering the pressure resistance of the heat exchange component 100, the width of the heat absorption flow channel 103 of the heat pump is set to be relatively narrow. While the coolant flows in the liquid cooling flow channel 102 of the power distribution assembly, with low pressure and high viscosity, considering the flow resistance, the width of the liquid cooling flow channel 102 of the power distribution assembly is greater than the width of the heat absorption flow channel 103 of the heat pump. And the positive projection of the heat absorption flow channel 103 of the heat pump on the substrate 20 falls within the positive projection of the liquid cooling flow channel 102 of the power distribution assembly on the substrate 20. When the coolant flows in the liquid cooling flow channel 102 of the power distribution assembly, it will be guided by the corresponding protrusion of the heat absorption flow channel 103 of the heat pump in the liquid cooling flow channel 102 of the power distribution assembly, changing the flow direction of the coolant and increasing the turbulence of the coolant, so that the coolant can surround the refrigerant on all sides, improving the heat transfer coefficient and enhancing the heat exchange effect.

[0096] In one embodiment, refer to Figure 6 , the positive projection of the heat absorption flow channel 103 of the heat pump on the substrate 20 is adjacent to the positive projection of the liquid cooling flow channel 102 of the power distribution assembly on the substrate 20.

[0097] By setting the positive projection of the heat absorption flow channel 103 of the heat pump on the substrate 20 to be adjacent to the positive projection of the liquid cooling flow channel 102 of the power distribution assembly on the substrate 20, the distance between the heat absorption flow channel 103 of the heat pump and the liquid cooling flow channel 102 of the power distribution assembly is smaller, which is beneficial to the heat exchange between the heat absorption flow channel 103 of the heat pump and the liquid cooling flow channel 102 of the power distribution assembly.

[0098] Please refer to Figure 2 and Figure 6 , the width of the direct cooling and direct heating flow channel 101 of the battery cell and the heat absorption flow channel 103 of the heat pump is not greater than 15 mm, the distance between the direct cooling and direct heating flow channels 101 of the battery cell is not less than 4 mm, and the distance between the heat absorption flow channels 103 of the heat pump is not less than 4 mm.

[0099] Specifically, the direct cooling and direct heating channel 101 of the battery cell bends and extends between the second region 22 and the fourth region 110. The liquid cooling channel 102 of the power distribution assembly and the heat absorption channel 103 of the heat pump both bend and extend between the first region 21 and the third region 120. The widths of the direct cooling and direct heating channel 101 of the battery cell and the heat absorption channel 103 of the heat pump are not greater than 15 mm. The spacing of the direct cooling and direct heating channel 101 of the battery cell is not less than 4 mm, and the spacing of the heat absorption channel 103 of the heat pump is not less than 4 mm.

[0100] According to the foregoing description, the widths of the direct cooling and direct heating channel 101 of the battery cell and the heat absorption channel 103 of the heat pump need to be set narrower to meet the pressure resistance strength requirements of the heat exchange assembly 100. Therefore, the widths of the direct cooling and direct heating channel 101 of the battery cell and the heat absorption channel 103 of the heat pump are set not to be greater than 15 mm. The specific widths can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, etc. This width should not be too small, as it will increase the manufacturing difficulty and easily cause impurity blockage in the narrow channels.

[0101] The meandering direct cooling and direct heating channel 101 of the battery cell and the heat absorption channel 103 of the heat pump can be roughly serpentine. The spacing refers to the minimum spacing, that is, the thickness of the part of the heat exchange assembly 100 that is not stamped and recessed. This unstamped and recessed part separates adjacent direct cooling and direct heating channels 101 in the fourth region 110 and separates adjacent heat absorption channels 103 of the heat pump in the third region 120. According to the foregoing description, the pressure of the refrigerant is relatively high. Considering the pressure resistance strength of the heat exchange assembly 100, the thickness of the unstamped and recessed part separating adjacent channels cannot be too thin. Therefore, the spacing of the direct cooling and direct heating channel 101 of the battery cell is set not to be less than 4 mm, and the spacing of the heat absorption channel 103 of the heat pump is set not to be less than 4 mm. Specifically, the spacing of the direct cooling and direct heating channel 101 of the battery cell can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc., without limitation. The spacing of the heat absorption channel 103 of the heat pump can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc., without limitation.

[0102] Reference Figure 2 and Figure 6 There is also a heat insulation member 60 provided between the direct cooling and direct heating channel 101 of the battery cell and the heat absorption channel 103 of the heat pump.

[0103] Specifically, reference Figure 2 and Figure 6, the flow channel plate 10 further includes a fifth region located between the fourth region 110 and the third region 120. Part of the structure of the fifth region is recessed from the first surface 11 towards the second surface 12. The substrate 20 is covered on the first surface 11 of the fifth region. The substrate 20 and the fifth region jointly enclose and separate the flow channel 61, and the separated flow channel 61 separates the direct cooling and direct heating flow channel 101 of the battery cell and the liquid cooling flow channel 102 of the power distribution assembly.

[0104] Taking the first surface 11 as a rectangle as an example, the fourth region 110 and the third region 120 are spaced apart in the length direction of the first surface 11, and the fifth region is located between the fourth region 110 and the third region 120. Optionally, the fourth region 110, the fifth region, and the third region 120 are sequentially connected in the length direction of the first surface 11. Alternatively, other regions can also be provided between the fourth region 110 and the fifth region, and between the fifth region and the third region 120. The extending direction of the separated flow channel 61 can be the width direction of the first surface 11. The separated flow channel 61 can be one or more. When there are multiple separated flow channels 61, they are spaced apart in the width direction of the first surface 11, or can also be spaced apart in both the length and width directions of the first surface 11, without limitation.

[0105] By providing that there is also a heat insulation member 60 between the direct cooling and direct heating flow channel 101 of the battery cell and the heat pump heat absorption flow channel 103, the heat insulation member 60 plays a heat insulation role, reducing the heat transfer between the direct cooling and direct heating flow channel 101 of the battery cell and the heat pump heat absorption flow channel 103, so as to reduce the mutual influence between the direct cooling and direct heating flow channel 101 of the battery cell and the heat pump heat absorption flow channel 103.

[0106] The separated flow channel 61 is also obtained by stamping the flow channel plate 10 and covering the substrate 20. Specifically, refer to the formation method of the direct cooling and direct heating flow channel 101 of the battery cell, and it will not be elaborated here. The separated flow channel 61 can be provided with an inlet and an outlet, or can also not be provided with an inlet and an outlet. The separated flow channel 61 can have a heat insulation medium, or can also be vacuum or filled with air, without limitation. The separated flow channel 61 plays a heat insulation role, weakening the heat transfer between the direct cooling and direct heating flow channel 101 of the battery cell and the liquid cooling flow channel 102 of the power distribution assembly and the heat pump heat absorption flow channel 103, reducing the mutual influence between the direct cooling and direct heating flow channel 101 of the battery cell and the liquid cooling flow channel 102 of the power distribution assembly and the heat pump heat absorption flow channel 103.

[0107] And by setting the substrate 20 to cover the first surface 11, the flow channel plate 10 and the substrate 20 jointly enclose the direct cooling and direct heating flow channel 101 of the battery cell, the liquid cooling flow channel 102 of the power distribution assembly, and the separated flow channel 61, improving the integration degree and reducing the number of components.

[0108] Refer to Figures 1 to 6, The embodiment of the present utility model further provides a battery device, which includes a housing (not shown), a battery cell 200, a power distribution assembly 300, and the heat exchange assembly 100 in any of the foregoing embodiments. The battery cell 200, the power distribution assembly 300, and the heat exchange assembly 100 are all disposed inside the housing, and the battery cell 200 and the power distribution assembly 300 are disposed on the heat exchange assembly 100.

[0109] There is no limitation on the specific structure of the housing. As the support structure of the battery device, the housing is used to be connected and fixed to the vehicle body and to mount the battery cell 200, the power distribution assembly 300, and the heat exchange assembly 100.

[0110] There may be multiple battery cells 200 to form at least one module. The battery cell 200 may be a battery cell 200 with a casing or a bare battery cell 200, without limitation.

[0111] The power distribution assembly 300 may include an electronic control module 310, a compressor 320, a power module 330, a power distribution module 340, etc., without limitation. The functions of each module can refer to the prior art, and the present utility model will not elaborate.

[0112] The battery cell 200 and the power distribution assembly 300 are arranged on the same layer and are both disposed on the heat exchange assembly 100. Specifically, they are disposed on the surface of the substrate 20 facing away from the flow channel plate 10. The battery cell 200 is disposed in the fourth region 110, and the power distribution assembly 300 is disposed in the third region 120. Each module of the power distribution assembly 300 can be reasonably arranged in the third region 120, and each module is directly connected to the substrate 20 so that each module can directly exchange heat with the heat exchange assembly 100.

[0113] In the battery device of the embodiment of the present utility model, by adopting the heat exchange assembly 100 of the embodiment of the present utility model, the heat exchange assembly 100 forms a direct cooling and direct heating flow channel 101 for the battery cell in the fourth region 110, a liquid cooling flow channel 102 for the power distribution assembly and a heat pump heat absorption flow channel 103 in the third region 120 by setting the flow channel plate 10, the substrate 20, and the cover plate 30. The fourth region 110 corresponds to the battery cell 200, and the third region 120 corresponds to the power distribution assembly 300. The refrigerant flowing in the direct cooling and direct heating flow channel 101 for the battery cell can exchange heat with the battery cell 200, the coolant flowing in the liquid cooling flow channel 102 for the power distribution assembly can exchange heat with the power distribution assembly 300, and the refrigerant flowing in the heat pump heat absorption flow channel 103 can exchange heat with the coolant flowing in the liquid cooling flow channel 102 for the power distribution assembly, realizing the integrated setting of multiple components to simultaneously realize heat exchange at multiple positions, and solving the problems such as the increase in the number of components of the current thermal management system leading to an increase in the number of vehicle interfaces, an increase in volume, and difficulty in assembly.

[0114] Refer to Figure 7 , and in combination with Figures 1 to 6, an embodiment of the present utility model further provides a thermal management system, which is applied to the vehicle in the embodiment of the present utility model. The thermal management system includes a compressor 320, a first pipeline G1, a second pipeline G2, a gas-liquid separator 410, a third pipeline G3, and a fourth pipeline G4.

[0115] The compressor 320 is used to output the refrigerant as high-temperature and high-pressure gas. The compressor 320 can be part or all of the structure of the compressor 320 in the power distribution assembly 300 in the aforementioned battery device.

[0116] The first pipeline G1 is connected to the outlet of the compressor 320 and is connected to the heat exchange assembly 100. The second pipeline G2 is connected to the heat exchange assembly 100. The third pipeline G3 is connected to the inlet of the gas-liquid separator 410 and is connected to the heat exchange assembly 100. The fourth pipeline G4 is connected to the outlet of the gas-liquid separator 410 and the inlet of the compressor 320.

[0117] Specifically, the first pipeline G1 is connected to the outlet of the compressor 320 and the inlet of the direct cooling and direct heating flow channel 101 of the battery cell. The second pipeline G2 is connected to the outlet of the direct cooling and direct heating flow channel 101 of the battery cell and the inlet of the heat pump heat absorption flow channel 103. The gas-liquid separator 410 is used to separate the refrigerant mixed with gas and liquid into gas and liquid. The third pipeline G3 is connected to the outlet of the heat pump heat absorption flow channel 103 and the inlet of the gas-liquid separator 410. The fourth pipeline G4 is connected to the outlet of the gas-liquid separator 410 and the inlet of the compressor 320.

[0118] The first pipeline G1 to the fourth pipeline G4 can adopt pipelines or any other feasible ways. The first pipeline G1 to the fourth pipeline G4 can be arranged inside the housing of the battery device or partially extend outside the housing, without any restrictions.

[0119] The thermal management system of this embodiment is mainly used for the low-temperature heating condition of the battery cell 200. Under this condition, the flow path of the refrigerant is as follows: the compressor 320 outputs high-temperature and high-pressure gaseous refrigerant, which is transported through the first pipeline G1 to the direct cooling and direct heating flow channel 101 of the battery cell to exchange heat with the battery cell 200 and becomes liquid refrigerant. After flowing out of the direct cooling and direct heating flow channel 101 of the battery cell, it is transported through the second pipeline G2 to the heat pump heat absorption flow channel 103 to exchange heat with the liquid cooling flow channel 102 of the power distribution assembly and becomes a mixed refrigerant of gas and liquid. It is transported through the third pipeline G3 to the gas-liquid separator 410 for gas-liquid separation. The gaseous refrigerant separated from the gas-liquid separator 410 returns to the compressor 320 through the fourth pipeline G4.

[0120] The thermal management system according to the embodiment of the present utility model realizes the design of the refrigerant circulation loop by adopting the heat exchange component 100 of the battery device of the vehicle according to the embodiment of the present utility model, and setting the compressor 320, the gas-liquid separator 410, and the first pipeline G1 to the fourth pipeline G4. The heat exchange between the fourth area 110 and the third area 120 on the heat exchange component 100 is realized by using the gas-liquid phase change of the refrigerant, which improves the integration degree of the thermal management system, reduces the number of components, and realizes heat exchange at multiple positions at the same time, solving the problems such as the increase in the number of components of the current thermal management system leading to an increase in the number of vehicle interfaces, an increase in volume, and difficult assembly.

[0121] In one embodiment, with reference to Figure 7 and in combination with Figures 1 to 6 , the thermal management system further includes a water pump 420, a fifth pipeline G5, an electric motor 430, a three-way valve F6, a sixth pipeline G6, and a radiator 440. The water pump 420 is used to drive the coolant to flow, and it can be of any type without limitation. The electric motor 430 is used to drive the vehicle to travel, and it can be of any type without limitation. The three-way valve F6 is arranged on the fifth pipeline G5 and is located between the outlet of the water pump 420 and the inlet of the electric motor 430; one end of the sixth pipeline G6 is communicated with the outlet of the three-way valve F6, and the other end is communicated with the inlet of the electric motor 430; the radiator 440 is arranged on the sixth pipeline G6, and the radiator 440 can be any structure capable of dissipating heat, which is not limited in the embodiment of the present utility model.

[0122] The fifth pipeline G5 is connected to the heat exchange component 100. Specifically, one end of the fifth pipeline G5 is communicated with the inlet of the liquid cooling flow channel 102 of the power distribution assembly, and the other end is communicated with the outlet of the liquid cooling flow channel 102 of the power distribution assembly. The water pump 420 is arranged on the fifth pipeline G5, and the electric motor 430 is arranged on the fifth pipeline G5.

[0123] The water pump 420 can be arranged near the inlet of the liquid cooling channel 102 of the power distribution assembly, and the motor 430 can be arranged near the outlet of the liquid cooling channel 102 of the power distribution assembly; the water pump 420 can also be arranged near the outlet of the liquid cooling channel 102 of the power distribution assembly, and the motor 430 can be arranged near the inlet of the liquid cooling channel 102 of the power distribution assembly. Once the power distribution assembly 300 is started, a large amount of heat will be generated, and the heat of the power distribution assembly 300 needs to be discharged in time. The coolant in the liquid cooling channel 102 of the power distribution assembly in the third area 120 is used to absorb the heat of the power distribution assembly 300. In this embodiment, the motor 430 is also incorporated into the thermal management system, that is, the motor 430 is arranged on the fifth pipeline G5. Specifically, the outer shell of the motor 430 may have a flow channel connected to the fifth pipeline G5, or the fifth pipeline G5 may surround the outer periphery of the motor 430, so that the heat generated by the motor 430 during operation is also absorbed by the coolant, that is, the heat of the power distribution assembly 300 and the motor 430 is all discharged through the coolant. In the third area 120, the heat of the coolant is absorbed by the refrigerant through the heat exchange of the flow channel plate 10, so that the heat of the power distribution assembly 300 and the motor 430 is absorbed by the refrigerant, the temperature of the coolant is reduced, and the power distribution assembly 300 and the motor 430 can be absorbed. There is no need to set up an additional cooling structure for the coolant, which improves the integration and reduces the number of components. Incorporating the motor 430 into the thermal management system also saves the need to set up an additional cooling structure for the motor 430.

[0124] The three-way valve F6 has an inlet and two outlets. The three-way valve F6 can control the inlet to communicate with any one of the outlets, but the inlet cannot be connected with both outlets at the same time. The inlet of the three-way valve F6 is connected with one end of the fifth pipeline G5 close to the motor 430, one of the outlets is connected with one end of the fifth pipeline G5 close to the motor 430, and the other outlet is connected with the sixth pipeline G6.

[0125] When the inlet of the three-way valve F6 is connected to the outlet of the fifth pipeline G5, it is the aforementioned low-temperature heating condition, and the pump drives the coolant to flow in the fifth pipeline G5 to cool the distribution module and the battery cell 200 at the same time, and exchange heat with the refrigerant. At this time, the radiator 440 does not participate in the work.

[0126] When the inlet of the three-way valve F6 is connected to the outlet of the sixth pipeline G6, it is a cooling condition. At this time, the battery cell 200 works in a suitable temperature range, and no heating or cooling is required, and the refrigerant will not flow into the heat pump heat absorption flow channel 103. The pump drives the coolant to flow into the sixth pipeline G6 through the three-way valve F6, and the heat generated by the power distribution assembly 300 and the motor 430 is dissipated by the radiator 440 on the sixth pipeline G6.

[0127] In this embodiment, by providing the sixth pipeline G6 and the radiator 440, the functions of cooling and heat dissipation for the power distribution assembly 300 and the motor 430 are achieved when the refrigerant does not participate in heat exchange. The structure is simple and the cost is low.

[0128] In one embodiment, referring to Figure 7 , and in combination with Figures 1 to 6 , the thermal management system further includes a seventh pipeline G7, a first condenser 450, an eighth pipeline G8, a second condenser 460, and a ninth pipeline G9. The seventh pipeline G7 is connected to the outlet of the compressor 320 and is connected to the heat exchange assembly 100. Specifically, the seventh pipeline G7 is connected to the outlet of the compressor 320 and the inlet of the heat pump heat absorption channel 103; the first condenser 450 is provided on the seventh pipeline G7.

[0129] In this embodiment, the first condenser 450 is used to be provided in the passenger compartment. When the high-temperature and high-pressure gaseous refrigerant input by the compressor 320 enters the first condenser 450 through the seventh pipeline G7, the first condenser 450 absorbs the heat of the refrigerant and releases heat to the passenger compartment, thereby providing a comfortable ambient temperature for the passenger compartment. After the first condenser 450 absorbs heat, the gaseous refrigerant becomes liquid and is transported to the heat pump heat absorption channel 103. After that, it is the same as the foregoing content, that is, the liquid refrigerant absorbs the heat of the coolant and becomes gaseous, returns to the gas-liquid separator 410 through the third pipeline G3, and finally is input into the compressor 320 through the fourth pipeline G4.

[0130] In this embodiment, by incorporating the first condenser 450 into the thermal management system, the function of heating the passenger compartment is achieved, the integration degree of the thermal management system is improved, and the functions are enriched.

[0131] The eighth pipeline G8 is connected to the outlet of the compressor 320 and is connected to the heat exchange assembly 100. Specifically, the eighth pipeline G8 is connected to the outlet of the compressor 320 and the inlet of the battery cell direct cooling and heating channel 101; the second condenser 460 is provided on the eighth pipeline G8.

[0132] The ninth pipeline G9 is connected to the heat exchange assembly 100 and is connected to the inlet of the gas-liquid separator 410. Specifically, the ninth pipeline G9 is connected to the outlet of the battery cell direct cooling and heating channel 101 and the inlet of the gas-liquid separator 410. Among them, the second condenser 460 and the first condenser 450 are provided at different positions. Specifically, the first condenser 450 is provided inside the passenger compartment, and the second condenser 460 is provided outside the passenger compartment.

[0133] This embodiment is in the cooling condition. After the battery cell 200 works for a long time, its temperature rises, and it is necessary to cool down in time to return to the appropriate temperature range. The high-temperature and high-pressure gaseous refrigerant input by the compressor 320 is input into the second condenser 460 through the eighth pipeline G8, and after cooling, it becomes liquid and flows into the direct cooling and direct heating channel 101 of the battery cell. The liquid refrigerant absorbs the high temperature of the battery cell 200 and then becomes gaseous or a gas-liquid mixture, and returns to the gas-liquid separator 410 through the ninth pipeline G9.

[0134] To control the flow directions of the refrigerant and the coolant in the above embodiment, various control valves can be provided in the embodiments of the present invention. Specifically, the thermal management system may include a first valve F1, a second valve F2, a third valve F3, a fourth valve F4, a fifth valve F5, a throttle valve F7, an electronic expansion valve F8, a check valve F9, etc. The first valve F1 and the throttle valve F7 are arranged on the first pipeline G1, and the first valve F1 is closer to the compressor 320. The second valve F2 is arranged on the seventh pipeline G7 and is located between the compressor 320 and the first condenser 450. The third valve F3 is arranged on the eighth pipeline G8 and is located between the second condenser 460 and the expansion valve. The fourth valve F4, the electronic expansion valve F8, and the check valve F9 are arranged on the second pipeline G2, and the electronic expansion valve F8, the check valve F9, and the fourth valve F4 are arranged in sequence away from the outlet of the direct cooling and direct heating channel 101 of the battery cell. The fifth valve F5 is arranged on the ninth pipeline G9. Among them, the first valve F1 to the fifth valve F5 can be solenoid valves or other types of valves that can be automatically controlled, and are all used to connect or cut off the pipeline. The throttle valve F7 is used to control the flow rate of the refrigerant flowing into the direct cooling and direct heating channel 101 of the battery cell. The electronic expansion valve F8 is used to adjust the flow rate and pressure of the refrigerant. Optionally, the thermal management system further includes a controller, and the controller can be electrically connected to the above first valve F1 to the fifth valve F5, the throttle valve F7, and the electronic expansion valve F8 for controlling the above valves.

[0135] Optionally, the first pipeline G1 includes a first sub-pipeline G11 and a second sub-pipeline G12. One end of the first sub-pipeline G11 is connected to the outlet of the compressor 320, and the other end is connected to the inlet of the throttle valve F7. One end of the second sub-pipeline G12 is connected to the outlet of the throttle valve F7, and the other end is connected to the inlet of the direct cooling and direct heating channel 101 of the battery cell. The first valve F1 is arranged on the first sub-pipeline G11. One end of the eighth pipeline G8 can be connected to the position of the first sub-pipeline G11 between the compressor 320 and the first valve F1, and the other end can be connected to the position of the first pipeline G1 close to the throttle valve F7.

[0136] Optionally, the second pipeline G2 includes a third sub-pipeline G21 and a fourth sub-pipeline G22. One end of the third sub-pipeline G21 is communicated with the outlet of the direct cooling and direct heating flow channel 101 of the battery cell, and the other end is communicated with the inlet of the check valve F9. The electronic expansion valve F8 is arranged on the third sub-pipeline G21. One end of the fourth sub-pipeline G22 is communicated with the outlet of the check valve F9, and the other end is communicated with the inlet of the heat absorption flow channel 103 of the heat pump. One end of the seventh pipeline G7 can be communicated with the position of the first sub-pipeline G11 between the compressor 320 and the first valve F1, and the other end is communicated with the position of the fourth sub-pipeline G22 close to the check valve F9. One end of the ninth pipeline G9 can be communicated with the position of the fourth sub-pipeline G22 close to the check valve F9.

[0137] Optionally, the fifth pipeline G5 includes a fifth sub-pipeline G51, a sixth sub-pipeline G52 and a seventh sub-pipeline G53. One end of the fifth sub-pipeline G51 is communicated with the outlet of the liquid cooling flow channel 102 of the power distribution assembly, and the other end is communicated with the inlet of the three-way valve F6. The water pump 420 is arranged on the fifth sub-pipeline G51. One end of the sixth sub-pipeline G52 is communicated with one of the outlets of the three-way valve F6, and the other end is communicated with the inlet of the motor 430. One end of the seventh sub-pipeline G53 is communicated with the outlet of the motor 430, and the other end is communicated with the inlet of the second pipeline G2. One end of the sixth pipeline G6 is communicated with the other outlet of the three-way valve F6, and the other end is communicated with the inlet of the motor 430.

[0138] Reference Figure 7 , and in combination with Figures 1 to 6 , several specific embodiments under different working conditions are introduced.

[0139] Low-temperature heating working condition: The first valve F1 and the fourth valve F4 are opened, and the second valve F2, the third valve F3 and the fifth valve F5 are closed. The compressor 320 outputs high-temperature and high-pressure gaseous refrigerant, which enters the direct cooling and direct heating flow channel 101 of the battery cell through the first pipeline G1, the first valve F1 and the throttle valve F7. After heating the battery cell 200, the refrigerant becomes liquid, and then enters the heat absorption flow channel 103 of the heat pump through the second pipeline G2, the electronic expansion valve F8, the check valve F9 and the fourth valve F4. After exchanging heat with the coolant, the refrigerant becomes gaseous or a gas-liquid mixture, and then returns to the compressor 320 through the third pipeline G3, the gas-liquid separator 410 and the fourth pipeline G4. The three-way valve F6 communicates with the fifth pipeline G5 and does not communicate with the sixth pipeline G6. The water pump 420 drives the coolant to pass through the liquid cooling flow channel 102 of the power distribution assembly and the motor 430, so as to realize the cooling and heat dissipation of the power distribution assembly 300 and the motor 430. Through the heat exchange of the heat exchange component 100 at the third area 120, the heat of the coolant is transferred to the refrigerant.

[0140] Occupant compartment heating condition: The second valve F2 and the fourth valve F4 are opened, and the first valve F1, the third valve F3, and the fifth valve F5 are closed. The compressor 320 outputs high-temperature and high-pressure gaseous refrigerant, which releases heat to the occupant compartment through the seventh pipeline G7, the second valve F2, and the first condenser 450 and becomes liquid. Then it enters the heat pump suction flow channel 103 through the second pipeline G2 and the fourth valve F4, exchanges heat with the coolant in the power distribution assembly liquid cooling flow channel 102, and becomes gaseous or a gas-liquid mixture. Then it returns to the compressor 320 through the third pipeline G3, the gas-liquid separator 410, and the fourth pipeline G4.

[0141] Occupant compartment heating condition and battery cell 200 heating condition: The first valve F1, the second valve F2, and the fourth valve F4 are opened, and the third valve F3 and the fifth valve F5 are closed. The compressor 320 outputs high-temperature and high-pressure gaseous refrigerant, which enters the direct cooling and direct heating flow channel 101 of the battery cell through the first pipeline G1, the first valve F1, and the throttle valve F7, heats the battery cell 200, and then the refrigerant becomes liquid. Then it enters the heat pump suction flow channel 103 through the second pipeline G2, the electronic expansion valve F8, the check valve F9, and the fourth valve F4. At the same time, the gaseous refrigerant output by the compressor 320 also enters the heat pump suction flow channel 103 through the seventh pipeline G7, the second valve F2, the second pipeline G2, and the fourth valve F4. The liquid refrigerant in the heat pump suction flow channel 103 exchanges heat with the coolant and then the refrigerant becomes gaseous or a gas-liquid mixture. Then it returns to the compressor 320 through the third pipeline G3, the gas-liquid separator 410, and the fourth pipeline G4.

[0142] Cooling condition: The third valve F3 and the fifth valve F5 are opened, and the first valve F1, the second valve F2, and the fourth valve F4 are closed. The compressor 320 outputs high-temperature and high-pressure gaseous refrigerant, which becomes low-temperature liquid refrigerant after passing through the eighth pipeline G8, the third valve F3, and the second condenser 460. Then it enters the direct cooling and direct heating flow channel 101 of the battery cell through the throttle valve F7 to cool the battery cell 200. After that, it returns to the compressor 320 through the electronic expansion valve F8, the check valve F9, the ninth pipeline G9, the fifth valve F5, the gas-liquid separator 410, and the fourth pipeline G4, realizing the cooling of the battery cell 200. The three-way valve F6 connects the sixth pipeline G6 and does not connect the fifth pipeline G5. The water pump 420 drives the coolant to circulate between the power distribution assembly liquid cooling flow channel 102, the fifth sub-pipeline G51, the three-way valve F6, the sixth pipeline G6, the radiator 440, and the motor 430, realizing the cooling of the power distribution assembly 300. In this condition, the refrigerant does not enter the heat pump suction flow channel 103.

[0143] Reference Figures 1 to 6 , The embodiment of the present invention further provides a vehicle, including the battery device in the embodiment of the present invention, or including the thermal management system in the embodiment of the present invention.

[0144] The vehicle includes a body, and a battery device is connected and fixed to the body. Specifically, the housing of the battery device is connected and fixed to the body. The vehicle in the embodiment of the present invention is a new energy vehicle with a battery device, and specifically may be a pure electric vehicle, a plug-in hybrid vehicle, an extended-range hybrid vehicle, etc., without limitation.

[0145] The vehicle in the embodiment of the present invention, by adopting the battery device in the embodiment of the present invention or adopting the thermal management system in the embodiment of the present invention, has the advantages of high integration degree and good heat exchange effect.

[0146] In the description of the embodiment of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0147] The above-disclosed is only a preferred embodiment of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A heat exchange component, characterized in that, For a battery device, the heat exchange assembly includes: A substrate; At least two different heat exchange mechanisms provided on the substrate, the at least two different heat exchange mechanisms being located on the same side of the substrate and capable of performing heat exchange with their respective corresponding different heat exchange objects.

2. The heat exchange component according to claim 1, characterized in that The heat exchange mechanism includes a liquid cooling member and a first direct cooling member, the substrate includes a first region, and both the liquid cooling member and the first direct cooling member are located on the same side of the first region.

3. The heat exchange component according to claim 2, wherein The liquid cooling member includes a power distribution assembly liquid cooling member, the first direct cooling member includes a heat pump suction direct cooling member, and both the power distribution assembly liquid cooling member and the heat pump suction direct cooling member are located on the same side of the first region; The direction away from the power distribution assembly liquid cooling member and the heat pump suction direct cooling member in the first region is suitable for arranging the power distribution assembly.

4. The heat exchange component according to claim 3, wherein The power distribution assembly liquid cooling member includes a power distribution assembly liquid cooling flow channel, the heat pump suction direct cooling member includes a heat pump suction flow channel, the power distribution assembly liquid cooling flow channel is suitable for allowing a coolant to flow, and the heat pump suction flow channel is suitable for allowing a refrigerant to flow.

5. The heat exchange component according to claim 4, characterized in that, The width of the power distribution assembly liquid cooling flow channel is greater than the width of the heat pump suction flow channel, and the orthographic projection of the heat pump suction flow channel on the substrate falls within the orthographic projection of the power distribution assembly liquid cooling flow channel on the substrate.

6. The heat exchange component according to claim 4, characterized in that, The orthographic projection of the heat pump suction flow channel on the substrate is adjacent to the orthographic projection of the power distribution assembly liquid cooling flow channel on the substrate.

7. The heat exchange component according to claim 4, wherein The power distribution assembly liquid cooling member further includes power distribution assembly liquid cooling joints respectively provided at the inlet and outlet of the power distribution assembly liquid cooling flow channel; the heat pump suction direct cooling member further includes heat pump suction direct cooling joints respectively provided at the inlet and outlet of the heat pump suction flow channel.

8. The heat exchange component according to any one of claims 4-7, characterized in that, The heat exchange mechanism further includes a second direct cooling member, the substrate further includes a second region, and the second direct cooling member is located in the first region or the second region; The first region and the second region do not overlap.

9. The heat exchange component according to claim 8, wherein The second direct cooling member includes a battery cell direct cooling member, the battery cell direct cooling member is located on one side of the second region, and the other side of the second region is suitable for having battery cells provided thereon.

10. The heat exchange module according to claim 9, wherein The battery cell direct cooling member and the heat pump suction direct cooling member are provided on the same side of the substrate.

11. The heat exchange module according to claim 9, wherein, The battery cell direct cooling member includes a battery cell direct cooling and heating flow channel and battery cell direct cooling joints respectively provided at the inlet and outlet of the battery cell direct cooling and heating flow channel, and the battery cell direct cooling and heating flow channel is suitable for allowing a refrigerant to flow.

12. The heat exchange component according to claim 11, wherein, The width of the battery cell direct cooling and heating flow channel and the heat pump suction flow channel is not greater than 15 mm, the spacing of the battery cell direct cooling and heating flow channel is not less than 4 mm, and the spacing of the heat pump suction flow channel is not less than 4 mm.

13. The heat exchange component according to claim 11, wherein, The battery cell direct cooling and heating flow channel and the heat pump suction flow channel in the heat pump suction direct cooling member are in the same plane, and the battery cell direct cooling joints and the heat pump suction direct cooling joints on the heat pump suction flow channel are integrally integrated.

14. The heat exchange component according to claim 11, characterized in that An insulating member is further provided between the battery cell direct cooling and heating flow channel and the heat pump suction flow channel.

15. A battery device, characterized in that, Including a housing, battery cells, a power distribution assembly, and the heat exchange assembly according to any one of claims 1 to 14, the battery cells, the power distribution assembly, and the heat exchange assembly are all provided in the housing, and the battery cells and the power distribution assembly are provided on the heat exchange assembly.

16. A thermal management system, characterized in that, Including: A compressor; The first pipeline is connected to the outlet of the compressor and is connected to the heat exchange component described in any one of claims 1-14; The second pipeline is connected to the heat exchange component; The gas-liquid separator; The third pipeline is connected to the inlet of the gas-liquid separator and is connected to the heat exchange component; The fourth pipeline is connected to the outlet of the gas-liquid separator and the inlet of the compressor.

17. The thermal management system according to claim 16, wherein The thermal management system further includes: The water pump; The fifth pipeline is connected to the heat exchange component, and the water pump is arranged on the fifth pipeline; The motor is arranged on the fifth pipeline; The three-way valve is arranged on the fifth pipeline and is located between the outlet of the water pump and the inlet of the motor; The sixth pipeline has one end connected to the outlet of the three-way valve and the other end connected to the inlet of the motor; The radiator is arranged on the sixth pipeline.

18. The thermal management system according to claim 16, wherein, The thermal management system further includes: The seventh pipeline is connected to the outlet of the compressor and is connected to the heat exchange component; The first condenser is arranged on the seventh pipeline; The eighth pipeline is connected to the outlet of the compressor and is connected to the heat exchange component; The second condenser is arranged on the eighth pipeline; The ninth pipeline is connected to the heat exchange component and is connected to the inlet of the gas-liquid separator.

19. A vehicle, characterized in that, It includes the battery device as described in claim 15, or includes the thermal management system as described in any one of claims 16 to 18.

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