Heat exchange assembly and thermal management system for a battery pack

Abstract

The utility model belongs to heat exchange technical field, specifically provides a heat exchange subassembly and is used for the heat management system of battery package, aims at solving the problem that the liquid cooling plate of existing conventional heat exchange system is open type component, and there is big security hidden danger. For this, the heat exchange subassembly of the utility model includes L type heat exchange board and the heating element and L type heat pipe of setting on L type heat exchange board, L type heat exchange board includes the drive section of vertical setting and the heat exchange section of horizontal setting, the heat exchange section is used for connecting with battery package, L type heat pipe sets up in the drive section as the situation of cold end can heat dissipation cooling of heat exchange section and battery package, the heating element is set in the surface of heat exchange section, and the heating element can heat the heat exchange section and battery package and heat up. The utility model's heat exchange subassembly does not have the security problem caused by leakage and condensation, and the safety is high, and the heat exchange effect is good, and the cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchange technology, specifically providing a heat exchange component and a thermal management system for a battery pack. Background Technology

[0002] Currently, the mainstream thermal control module solution for conventional new energy battery packs involves fixing and contacting a liquid cooling plate (usually made of a thermally conductive metal such as aluminum alloy) at the bottom or side of the battery cell using adhesive or thermal pads. The liquid cooling plate has an inlet and an outlet. During heat dissipation, the battery generates heat during charging and discharging. This heat is conducted through direct contact between the solid components to the walls of the internal flow channels of the liquid cooling plate, and then from the walls to the liquid. The liquid is driven by a pump and flows to the outlet, where it transfers the heat to external heat dissipation components for cooling. During heating, the external liquid is heated by methods such as electric heating. Then, driven by a pump, the hot liquid is input from the inlet, flows through the internal flow channels, and the heat is transferred through the liquid to the walls. The walls then transfer the heat to the battery that needs to be heated through solid-state thermal conduction.

[0003] However, conventional liquid cooling plates are open components, typically connected to external piping via connectors (quick-connect fittings or other structural components for connecting pipelines). However, due to connector installation processes, lifespan limitations, or localized high pressure generated after impact, leaks frequently occur at the connections, leading to battery pack safety incidents. Furthermore, the introduction of relatively low-temperature coolant creates a temperature difference between the cooling plate and the environment, causing condensation to easily form on the outer side of the liquid cooling plate. If these condensations fall onto the underlying battery pack or other electrical components, they may trigger short circuits, resulting in safety incidents.

[0004] Accordingly, a new technical solution is needed in this field to solve the above-mentioned technical problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the liquid cooling plate of the existing conventional heat exchange system is an open component, which poses a great safety hazard.

[0006] In a first aspect, the present invention provides a heat exchange assembly, the heat exchange assembly comprising an L-shaped heat exchange plate and a heating element and an L-shaped heat pipe disposed on the L-shaped heat exchange plate, the L-shaped heat exchange plate comprising a vertically arranged driving section and a horizontally arranged heat exchange section, the heat exchange section being used to connect to a battery pack; the L-shaped heat pipe being configured to dissipate heat and cool the heat exchange section and the battery pack when the driving section is the cold end; the heating element being disposed on the surface of the heat exchange section, the heating element being capable of heating the heat exchange section and the battery pack.

[0007] In the preferred embodiment of the heat exchange component described above, the heating element is disposed on the front or back of the heat exchange section.

[0008] In the preferred embodiment of the above heat exchange component, the heating element is disposed on the side of the heat exchange section close to the battery pack.

[0009] In the preferred embodiment of the heat exchange component described above, there are two heating elements, which are respectively disposed on the front and back sides of the heat exchange section.

[0010] In the preferred embodiment of the above heat exchange component, an electromagnetic valve is provided inside the L-shaped heat pipe.

[0011] In the preferred embodiment of the above heat exchange component, the L-shaped heat pipe is filled with a phase change working fluid, and the L-shaped heat pipe includes a vertically arranged condensing section, a horizontally arranged evaporating section, and an adiabatic section connecting the condensing section and the evaporating section. The condensing section is arranged on the driving section, and the evaporating section is arranged on the heat exchange section; and / or, there are multiple L-shaped heat pipes, and the multiple L-shaped heat pipes are spaced apart along a first direction.

[0012] In the preferred embodiment of the above heat exchange component, an electromagnetic valve is provided in the adiabatic section; and / or, the phase change working fluid is one or more of liquid ammonia, acetone, Freon, and water; and / or, the distance between two adjacent L-shaped heat pipes is 10mm to 300mm; and / or, the inner diameter of the L-shaped heat pipe is 4mm to 20mm; and / or, a capillary wick structure extending along the length of the L-shaped heat pipe is provided inside, the capillary wick structure including a gas channel and a liquid channel, so that the phase change working fluid can absorb heat and evaporate in the evaporation section, so that the gas phase working fluid flows towards the condensation section in the gas channel, and after releasing heat and condensing in the condensation section, the liquid phase working fluid flows towards the evaporation section in the liquid channel under the action of gravity.

[0013] In the preferred embodiment of the above heat exchange component, the capillary wick structure has a petal-shaped cross-section, the gas channel extends along the length of the L-shaped heat pipe and is coaxial with the L-shaped heat pipe, and there are multiple liquid channels, each extending along the length of the L-shaped heat pipe. The multiple liquid channels are evenly arranged around the gas channel, and the liquid channels and the gas channels are connected through gaps; or, the capillary wick structure is a liquid-absorbing wick, and a through hole is provided at the center of the liquid-absorbing wick, the through hole forming the gas channel, and the body of the liquid-absorbing wick forming the liquid channel.

[0014] In the preferred embodiment of the above heat exchange component, the L-shaped heat exchange plate is provided with a weight reduction groove.

[0015] In a second aspect, the present invention provides a thermal management system for a battery pack, the thermal management system including an air-cooled heat dissipation component and the aforementioned heat exchange component, the battery pack being mounted on the heat exchange section and capable of exchanging heat with the heat exchange section; the air-cooled heat dissipation component being mounted on the drive section, the air-cooled heat dissipation component being used to dissipate heat and cool the drive section.

[0016] In the preferred embodiment of the thermal management system for the battery pack described above, the air-cooled heat dissipation component includes a heat sink, the heat sink is provided with a heat dissipation structure, the heat sink is arranged adjacent to the drive section and is capable of dissipating heat from the drive section.

[0017] In the preferred embodiment of the thermal management system for the battery pack described above, the air-cooled heat dissipation component further includes a fan, which is installed on the drive section to accelerate the airflow near the drive section.

[0018] When adopting the above technical solution, the heat exchange assembly of this utility model includes an L-shaped heat exchange plate and an L-shaped heat pipe and a heating element disposed on the L-shaped heat exchange plate. The L-shaped heat exchange plate includes a vertically arranged driving section and a horizontally arranged heat exchange section. The heat exchange section is used to connect to the battery pack. The L-shaped heat pipe is used to dissipate heat and cool the heat exchange section and the battery pack when the driving section is the cold end. The heating element can heat the battery pack and the heat exchange section. This arrangement allows for both heat dissipation and cooling of the battery pack using the L-shaped heat pipe and heating of the battery pack using the heating element. The L-shaped heat pipe has a closed structure and does not... The presence of inlet and outlet connectors eliminates the risk of leaks and prevents the entry of external cryogenic coolant. During heat exchange, the temperature difference between the entire heat exchange assembly and the battery pack is small, reducing the likelihood of condensation. Furthermore, the L-shaped heat pipe is a closed-loop design, allowing the phase change working fluid to flow within a pre-designed closed pipeline without clogging, effectively improving heat exchange efficiency. In addition, the inclusion of a heating element allows for heating of the battery pack. Thus, the heat exchange assembly of this application can both dissipate heat and heat the battery pack, achieving both excellent heat exchange performance and high safety.

[0019] Furthermore, by placing the heating element on the side of the heat exchange section close to the battery pack, the battery pack can be heated directly, resulting in a better heating effect.

[0020] Furthermore, the number of heating elements was changed to two, which were enclosed and set on the front and back of the heat exchange section. The two heating elements can better heat the heat exchange section, thereby improving the heating effect.

[0021] Furthermore, an electromagnetic valve is installed inside the L-shaped heat pipe. The electromagnetic valve controls the opening and closing of the L-shaped heat pipe. By installing the electromagnetic valve, the L-shaped heat pipe can be disconnected when the heating element is heating, so as to prevent the phase change working fluid from flowing inside the L-shaped heat pipe, thereby avoiding heat loss and improving the heating effect of the heating element on the battery pack.

[0022] Furthermore, the condensation section of the L-shaped heat pipe is located on the driving section of the L-shaped heat exchange plate, and the evaporation section of the L-shaped heat pipe is located on the heat exchange section of the L-shaped heat exchange plate. The phase change working fluid is circulated by gravity, thereby dissipating heat and cooling the heat exchange section and the battery pack.

[0023] Furthermore, the solenoid valve is located in the adiabatic section, which better disconnects the condensation section and the evaporation section, making it more convenient to use.

[0024] Furthermore, by setting the distance between two adjacent L-shaped heat pipes to 10mm to 300mm, the heat exchange effect of the L-shaped heat pipes on the entire battery pack can be better improved, so that heat exchange is uniform in all areas of the battery pack and the temperature difference between different parts of the battery pack can be reduced.

[0025] Furthermore, the inner diameter of the L-shaped heat pipe is 4mm to 20mm, which can increase the flow rate of the phase change working fluid and improve the heat exchange effect.

[0026] Furthermore, the L-shaped heat pipe is equipped with a capillary structure, which includes a gas channel and a liquid channel. By setting a capillary structure inside the L-shaped heat pipe, the gaseous working fluid flows in the gas channel when the phase change working fluid evaporates. After flowing to the condensation section, the gaseous working fluid contacts the pipe wall and condenses into a liquid working fluid. Under the action of gravity, the liquid working fluid flows towards the evaporation section in the liquid channel, which can effectively improve the efficiency of gas-liquid separation, provide sufficient driving force, and improve the heat exchange effect.

[0027] Furthermore, the cross-section of the capillary wick structure is arranged in a petal shape, with liquid channels located outside the gas channels and multiple channels evenly arranged along the circumference of the gas channels. This ensures that there is a channel for the liquid working fluid to flow at any position on the circumference of the gas channels, which can effectively improve the heat exchange effect.

[0028] Furthermore, the L-shaped heat exchange plate is equipped with a weight reduction groove, which can reduce the weight of the L-shaped heat exchange plate, thereby achieving lightweighting of the heat exchange components.

[0029] The thermal management system of this utility model includes an air-cooled heat dissipation component and a heat exchange component. The battery pack is installed on the heat exchange section of the heat exchange component, and the air-cooled heat dissipation component is installed on the drive section of the heat exchange component. The air-cooled heat dissipation component is used to dissipate heat and cool down the drive section, thereby improving the condensation effect of the condensation section of the L-shaped heat pipe and improving the heat dissipation effect on the battery pack.

[0030] Furthermore, the air-cooled heat dissipation component includes a heat sink, which dissipates heat from the drive section. Its structure is simple and easy to assemble and use.

[0031] Furthermore, the air-cooled heat dissipation component also includes a fan, which accelerates the airflow in the drive section, thereby improving the heat dissipation efficiency of the air-cooled heat dissipation component. Attached Figure Description

[0032] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0033] Figure 1 This is a three-dimensional structural diagram of the heat exchange plate of this utility model. Figure 1 ;

[0034] Figure 2 This is a three-dimensional structural diagram of the heat exchange plate of this utility model. Figure 2 ;

[0035] Figure 3 This is a side view of the heat exchange plate of this utility model;

[0036] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;

[0037] Figure 5 yes Figure 4 A magnified structural diagram of the initial stage of the middle A-level structure;

[0038] Figure 6 This is a three-dimensional structural diagram of the thermal management system for a battery pack according to this utility model. Figure 1 ;

[0039] Figure 7 This is a three-dimensional structural diagram of the thermal management system for a battery pack according to this utility model. Figure 2 .

[0040] List of reference numerals in the attached diagram:

[0041] 1. Heat exchange assembly; 11. L-shaped heat exchange plate; 111. Drive section; 112. Heat exchange section; 113. Weight reduction tank; 12. Heating element; 13. L-shaped heat pipe; 131. Condensation section; 132. Evaporation section; 133. Insulation section; 134. Capillary structure; 1341. Gas channel; 1342. Liquid channel; 1343. Gap;

[0042] 2. Battery pack;

[0043] 3. Air-cooled heat dissipation components; 31. Radiator; 32. Fan. Detailed Implementation

[0044] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0045] It should be noted that in the description of this utility model, terms such as "above," "inner side," and "outer side," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connect," and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through other components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] As pointed out in the background section, the liquid cooling plates of existing conventional heat exchange systems are open components, posing significant safety hazards.

[0048] This utility model provides a heat exchange component that eliminates safety issues caused by leakage and condensation, ensuring high safety, good heat exchange effect, and low cost. Furthermore, the heat exchange component of this application can both dissipate heat from the battery pack and heat it, achieving both good heat exchange effect and high heat exchange safety.

[0049] In a first aspect, this utility model provides a heat exchange component 1, please also refer to 1 to 2000. Figure 5 The heat exchange assembly 1 includes an L-shaped heat exchange plate 11 and a heating element 12 and an L-shaped heat pipe 13 disposed on the L-shaped heat exchange plate 11.

[0050] The L-shaped heat exchange plate 11 includes a vertically arranged drive section 111 and a horizontally arranged heat exchange section 112, with the heat exchange section 112 connected to the battery pack 2. The L-shaped heat pipe 13 is configured to dissipate heat and cool the heat exchange section 112 and the battery pack 2 when the drive section 111 acts as the cold end. Specifically, the L-shaped heat pipe 13 is used to dissipate heat and cool the heat exchange section 112 and the battery pack 2.

[0051] The heating element 12 is disposed on the surface of the heat exchange section 112, and the heating element 12 is capable of heating the heat exchange section 112 and the battery pack 2. Specifically, the heating element 12 is used to heat the heat exchange section 112 and the battery pack 2.

[0052] The heat exchange component 1 of this invention utilizes an L-shaped heat pipe 13 to dissipate heat and cool the battery pack 2, and also uses a heating element 12 to heat the battery pack 2. The L-shaped heat pipe 13 is a closed structure with no inlet / outlet joints, thus eliminating the risk of leakage and preventing the entry of external low-temperature coolant. During heat exchange, the temperature difference between the entire heat exchange component 1 and the battery pack 2 is small, reducing the likelihood of condensation. Furthermore, the closed design of the L-shaped heat pipe 13 allows the phase change working fluid to flow within a pre-designed closed pipeline, preventing blockage and effectively improving heat exchange efficiency. Additionally, the heating element 12 heats the battery pack 2. Therefore, compared to heat exchange components that only include the L-shaped heat pipe 13, the heat exchange component 1 of this application can both dissipate heat and heat the battery pack 2, with better heat exchange performance and higher safety.

[0053] It should be noted that this utility model does not impose any restrictions on the specific form, quantity, and placement of the heating element 12. In practical applications, those skilled in the art can set the specific form, quantity, and placement of the heating element 12 according to actual needs. Any adjustments and changes to the specific form, quantity, and placement of the heating element 12 do not deviate from the basic principles of this utility model and should be limited to the protection scope of this utility model.

[0054] In some embodiments, the heating element 12 is a heating plate or heating film, and the heating element 12 is disposed on the front or back of the heat exchange section 112.

[0055] In some embodiments, the heating element 12 is a heating plate or heating film, and the heating element 12 is disposed on the side of the heat exchange section 112 close to the battery pack 2.

[0056] In some embodiments, there are two heating elements 12, which are respectively disposed on the front and back sides of the heat exchange section 112.

[0057] Preferably, an electromagnetic valve is installed inside the L-shaped heat pipe 13.

[0058] An electromagnetic valve is installed inside the L-shaped heat pipe 13. The electromagnetic valve controls the opening and closing of the L-shaped heat pipe 13. By installing the electromagnetic valve, the L-shaped heat pipe 13 can be disconnected when the heating element 12 is heating, so as to prevent the phase change working fluid from flowing in the L-shaped heat pipe 13, thereby avoiding heat loss and improving the heating effect of the heating element 12 on the battery pack 2.

[0059] Preferably, the L-shaped heat pipe 13 is filled with a phase change working fluid. The L-shaped heat pipe 13 includes a vertically arranged condensing section 131, a horizontally arranged evaporating section 132, and an adiabatic section 133 connecting the condensing section 131 and the evaporating section 132. The condensing section 131 is arranged on the driving section 111, and the evaporating section 132 is arranged on the heat exchange section 112.

[0060] The condensing section 131 of the L-shaped heat pipe 13 is set on the driving section 111 of the L-shaped heat exchange plate 11, and the evaporating section 132 of the L-shaped heat pipe 13 is set on the heat exchange section 112 of the L-shaped heat exchange plate 11. The phase change working fluid is circulated by gravity, thereby dissipating heat and cooling the heat exchange section 112 and the battery pack 2.

[0061] In the exemplary embodiment, the installation of the insulation section 133 is not mandatory, and those skilled in the art can choose it as needed. Without the insulation section 133, the evaporation section 132 is directly connected to the condensation section 131.

[0062] Preferably, an electromagnetic valve is installed in the insulation section 133.

[0063] The solenoid valve is located in the insulation section 133, which better disconnects the condensation section 131 and the evaporation section 132, making it more convenient to use.

[0064] Preferably, please refer to Figure 2 There are multiple L-shaped heat pipes 13, which are spaced apart along a first direction. The first direction is the width direction of the L-shaped heat exchange plate 11.

[0065] Preferably, the distance between two adjacent L-shaped heat pipes 13 is 10mm to 300mm. Specifically, the distance between two adjacent L-shaped heat pipes 13 is the straight-line distance between the end faces of the two adjacent L-shaped heat pipes 13 on the side closest to each other.

[0066] By setting the distance between two adjacent L-shaped heat pipes 13 to 10mm to 300mm, the heat exchange effect of the L-shaped heat pipes 13 on the entire battery pack 2 can be better improved, so that heat exchange can be carried out evenly in all areas of the battery pack 2 and the temperature difference between different positions of the battery pack 2 can be reduced.

[0067] Preferably, the inner diameter of the L-shaped heat pipe 13 is 4mm to 20mm.

[0068] The L-shaped heat pipe 13 has an inner diameter of 4mm to 20mm, which can increase the flow rate of the phase change working fluid and improve the heat exchange effect.

[0069] Preferably, the straight-line distance from the top surface of the condensing section 131 to the bottom surface of the condensing section 131 is ΔH, where ΔH ≥ 1 mm.

[0070] More preferably, the straight-line distance ΔH between the top surface and the bottom surface of the condensing section 131 is 10mm to 1000mm.

[0071] Preferably, the angle between the line connecting the top of the condensing section 131 and the end of the evaporating section 132 away from the condensing section 131 and the horizontal plane is α, where 0.8°≤α≤2°.

[0072] The above configuration avoids increasing the reflux resistance of the liquid working fluid due to the excessively high position of the evaporation section 132 and the adiabatic section 133, and ensures that the condensation section 131 is in a high position, so that the liquid working fluid is simultaneously driven by capillary force and gravity during the reflux process, effectively reducing the flow resistance.

[0073] In some preferred embodiments, the phase change working fluid filling rate in the L-shaped heat pipe 13 is 40% to 70%. This filling rate is the ratio of the volume of the filled liquid working fluid to the total volume within the L-shaped heat pipe 13.

[0074] Preferably, the phase change working fluid is one or more of liquid ammonia, acetone, Freon, and water.

[0075] It should be noted that in practical applications, those skilled in the art can choose a suitable phase change working medium according to actual needs. For example, when the heat exchange temperature is below 0°C, a non-aqueous phase change working medium (such as acetone, liquid ammonia, etc.) or a mixture of water and other non-aqueous phase change working media can be used. Any adjustments or changes to the phase change working medium that do not deviate from the basic principles of this application should be limited to the scope of protection of this application.

[0076] In some implementations, the phase change working fluid is acetone.

[0077] In some preferred embodiments, the phase change working fluid is liquid ammonia.

[0078] In some implementations, the phase change working fluid is a mixture of water and acetone.

[0079] Preferably, please refer to Figure 2 , Figure 4 and Figure 5 The L-shaped heat pipe 13 is provided with a capillary wick structure 134 extending along its length. The capillary wick structure 134 includes a gas channel 1341 and a liquid channel 1342, so that the phase change working fluid can absorb heat and evaporate in the evaporation section 132, so that the gas phase working fluid flows towards the condensation section 131 in the gas channel 1341, and after releasing heat and condensing in the condensation section 131, the liquid phase working fluid flows towards the evaporation section 132 in the liquid channel 1342 under the action of gravity.

[0080] The L-shaped heat pipe 13 is equipped with a capillary structure 134, which includes a gas channel 1341 and a liquid channel 1342. By setting the capillary structure 134 inside the L-shaped heat pipe 13, the gaseous working fluid flows in the gas channel 1341 when the phase change working fluid evaporates. After flowing to the condensation section 131, the gaseous working fluid contacts the pipe wall and condenses into a liquid working fluid. Under the action of gravity, the liquid working fluid flows towards the evaporation section 132 in the liquid channel 1342, which can effectively improve the efficiency of gas-liquid separation, provide sufficient driving force, and improve the heat exchange effect.

[0081] It should be noted that this application does not impose any restrictions on the specific structure of the capillary wick structure 134. As long as the capillary wick structure 134 can provide a certain capillary force and gas-liquid phase channel, so that the liquid working medium can be smoothly evaporated and separated into gas and liquid when heated, in practical applications, those skilled in the art can set the specific structure of the capillary wick structure 134 according to actual needs.

[0082] In one feasible implementation, please also refer to Figure 4 and Figure 5 The capillary wick structure 134 has a petal-shaped cross-section. The gas channel 1341 extends along the length of the L-shaped heat pipe 13 and is coaxial with the L-shaped heat pipe 13. There are multiple liquid channels 1342, each extending along the length of the L-shaped heat pipe 13. The multiple liquid channels 1342 are evenly arranged around the gas channel 1341, and the liquid channels 1342 and the gas channel 1341 are connected through the gap 1343.

[0083] The capillary wick structure 134 is arranged in a petal shape, with liquid channels 1342 located outside the gas channel 1341 and multiple channels evenly arranged along the circumference of the gas channel 1341. This ensures that there is a channel for the liquid working fluid to flow 1342 at any position on the circumference of the gas channel 1341, which can effectively improve the heat exchange effect.

[0084] The cross-section of the liquid channel 1342 can be of any shape, such as heart-shaped, rhomboid, trapezoidal, circular, near-circular, polygonal, or triangular, as long as the liquid channel 1342 is connected to the gas channel 1341 through the gap 1343. Those skilled in the art can set the shape of the liquid channel 1342 according to actual needs. The cross-section of the gas channel 1341 can also be of any shape, such as circular, elliptical, or polygonal. Preferably, the gas channel 1341 is circular to facilitate the setting of the liquid channel.

[0085] In another feasible embodiment, the capillary wick structure 134 is a liquid-absorbing wick, and a through hole is provided at the center of the liquid-absorbing wick. The through hole forms a gas channel 1341, and the body of the liquid-absorbing wick forms a liquid channel 1342.

[0086] Preferably, the L-shaped heat exchange plate 11 is provided with a weight reduction groove 113.

[0087] The L-shaped heat exchange plate 11 is provided with a weight reduction groove 113, which can reduce the weight of the L-shaped heat exchange plate 11, thereby achieving the lightweighting of the heat exchange component 1.

[0088] In a second aspect, this utility model provides a thermal management system for a battery pack 2, see [link to relevant documentation]. Figure 6 and Figure 7 The thermal management system includes an air-cooled heat dissipation component 3 and a heat exchange component 1. The battery pack 2 is installed on the heat exchange section 112 and can exchange heat with the heat exchange section 112. The air-cooled heat dissipation component 3 is installed on the drive section 111 and is used to dissipate heat and cool the drive section 111.

[0089] The thermal management system of this utility model includes an air-cooled heat dissipation component 3 and a heat exchange component 1. The battery pack 2 is installed on the heat exchange section 112 of the heat exchange component 1, and the air-cooled heat dissipation component 3 is installed on the drive section 111 of the heat exchange component 1. The air-cooled heat dissipation component 3 is used to dissipate heat and cool down the drive section 111, thereby improving the condensation effect of the condensation section 131 of the L-shaped heat pipe 13 and improving the heat dissipation effect on the battery pack 2.

[0090] Preferably, please refer to Figure 6 and Figure 7 The air-cooled heat dissipation component 3 includes a heat sink 31, which is provided with a heat dissipation structure. The heat sink 31 is arranged adjacent to the drive section 111 and can dissipate heat from the drive section 111.

[0091] The air-cooled heat dissipation component 3 includes a heat sink 31, which dissipates heat from the drive section 111. Its structure is simple and easy to assemble and use.

[0092] Preferably, please refer to Figure 7 The air-cooled heat dissipation component 3 also includes a fan 32, which is mounted on the drive section 111 to accelerate the airflow near the drive section 111.

[0093] The air-cooled heat dissipation component 3 also includes a fan 32, which accelerates the airflow speed of the drive section 111, thereby improving the heat dissipation efficiency of the air-cooled heat dissipation component 3.

[0094] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A heat exchange component, characterized in that, The heat exchange assembly (1) includes an L-shaped heat exchange plate (11) and a heating element (12) and an L-shaped heat pipe (13) disposed on the L-shaped heat exchange plate (11). The L-shaped heat exchange plate (11) includes a vertically arranged drive section (111) and a horizontally arranged heat exchange section (112), the heat exchange section (112) being used to connect to the battery pack (2); The L-shaped heat pipe (13) is configured to dissipate heat and cool down the heat exchange section (112) and the battery pack (2) when the drive section (111) is the cold end; The heating element (12) is disposed on the heat exchange section (112), and the heating element (12) can heat the heat exchange section (112) and the battery pack (2) to increase their temperature.

2. The heat exchange assembly according to claim 1, characterized in that, The heating element (12) is disposed on the front or back of the heat exchange section (112).

3. The heat exchange assembly according to claim 1, characterized in that, The heating element (12) is disposed on the side of the heat exchange section (112) near the battery pack (2).

4. The heat exchange assembly according to claim 1, characterized in that, The number of heating elements (12) is two, and the two heating elements (12) are respectively disposed on the front and back of the heat exchange section (112).

5. The heat exchange assembly according to claim 1, characterized in that, A solenoid valve is installed inside the L-shaped heat pipe (13).

6. The heat exchange assembly according to claim 1, characterized in that, The L-shaped heat pipe (13) is filled with a phase change working fluid. The L-shaped heat pipe (13) includes a vertically arranged condensing section (131), a horizontally arranged evaporating section (132), and an adiabatic section (133) connecting the condensing section (131) and the evaporating section (132). The condensing section (131) is arranged on the driving section (111), and the evaporating section (132) is arranged on the heat exchange section (112). And / or, the number of the L-shaped heat pipes (13) is multiple, and the multiple L-shaped heat pipes (13) are spaced apart along the first direction.

7. The heat exchange assembly according to claim 6, characterized in that, A solenoid valve is installed in the insulation section (133); And / or, the phase change working medium is one or more of liquid ammonia, acetone, Freon, and water; And / or, the distance between two adjacent L-shaped heat pipes (13) is 10mm to 300mm; And / or, the inner diameter of the L-shaped heat pipe (13) is 4mm~20mm; And / or, the L-shaped heat pipe (13) is provided with a capillary wick structure (134) extending along its length. The capillary wick structure (134) includes a gas channel (1341) and a liquid channel (1342) so that the phase change working fluid can absorb heat and evaporate in the evaporation section (132), so that the gas phase working fluid flows toward the condensation section (131) in the gas channel (1341), and after releasing heat and condensing in the condensation section (131), the liquid phase working fluid flows toward the evaporation section (132) in the liquid channel (1342) under the action of gravity.

8. The heat exchange assembly according to claim 7, characterized in that, The capillary wick structure (134) has a petal-shaped cross-section, and the gas channel (1341) extends along the length of the L-shaped heat pipe (13) and is coaxial with the L-shaped heat pipe (13). The number of liquid channels (1342) is multiple, each liquid channel (1342) extends along the length direction of the L-shaped heat pipe (13), the multiple liquid channels (1342) are evenly arranged around the gas channel (1341) in a circumferential direction, and the liquid channels (1342) and the gas channel (1341) are connected through gaps (1343); Alternatively, the capillary wick structure (134) is a liquid-absorbing wick, with a through hole at the center of the liquid-absorbing wick, the through hole forming the gas channel (1341), and the body of the liquid-absorbing wick forming the liquid channel (1342).

9. The heat exchange assembly according to any one of claims 1 to 8, characterized in that, The L-shaped heat exchange plate (11) is provided with a weight reduction groove (113).

10. A thermal management system for a battery pack (2), characterized in that, The thermal management system includes an air-cooled heat dissipation component (3) and a heat exchange component (1) as described in any one of claims 1 to 9. The battery pack (2) is mounted on the heat exchange section (112) and is able to exchange heat with the heat exchange section (112); The air-cooled heat dissipation component (3) is installed on the drive section (111), and the air-cooled heat dissipation component (3) is used to dissipate heat and cool down the drive section (111).

11. The thermal management system for a battery pack (2) according to claim 10, characterized in that, The air-cooled heat dissipation component (3) includes a heat sink (31), which is provided with a heat dissipation structure. The heat sink (31) is arranged adjacent to the drive section (111) and can dissipate heat from the drive section (111).

12. The thermal management system for the battery pack (2) according to claim 11, characterized in that, The air-cooled heat dissipation assembly (3) also includes a fan (32), which is installed on the drive section (111) to accelerate the airflow near the drive section (111).

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