New energy automobile battery pack heat dissipation structure
By combining the frame, cooling unit, and airbag unit, the safety hazards caused by assembly gaps in the heat dissipation structure of new energy vehicle battery packs are solved, achieving uniform heat dissipation and stable fixation, thereby improving the safety and lifespan of the battery pack.
Patent Information
- Application Number
- CN202511580080.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-02-27
AI Technical Summary
In the existing heat dissipation structure of new energy vehicle battery packs, excessively large or small assembly gaps can lead to safety hazards for the cells and battery packs, such as displacement, damage, leakage, or short circuits, affecting the safety and lifespan of the battery pack.
The system adopts a combined structure of frame, cooling unit and airbag unit. The frame is set on the outside of the battery pack, the airbag unit is between the frame and the battery pack, and the cooling unit is on the frame. The airbag unit includes an airbag pad and an inflation component. The cooling unit includes a cooling pipe and a semiconductor cooling chip. The airbag unit fills the assembly gap and the cooling unit dissipates heat. The frame is made of a material with good thermal conductivity to improve heat dissipation efficiency.
It effectively avoids localized overheating of battery cells and battery packs, improves safety and lifespan, reduces the impact of assembly gaps on battery packs, prevents displacement, damage, leakage and short circuits, extends service life and reduces user costs.
Smart Images
Figure CN121584079A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of battery pack heat dissipation, specifically, this invention relates to a heat dissipation structure for a new energy vehicle battery pack. Background Technology
[0002] New energy battery packs are battery systems composed of multiple cells connected in series and parallel to provide power for new energy vehicles. They mainly consist of battery cells, modules, and a power management system. Heat dissipation is a core aspect of ensuring the safety, performance, and lifespan of new energy battery packs. The core objective is to evenly dissipate the heat generated by the cells during operation to avoid localized overheating that could lead to thermal runaway. If the cell temperature exceeds 60°C, it may cause the separator to rupture, short circuit between the positive and negative electrodes, and consequently lead to dangerous accidents such as fire and explosion.
[0003] The heat dissipation structure is usually set on the frame on the outside of the battery pack. The frame is the "skeleton" of the battery pack. The reserved space between the frame and the cells and modules is called the frame clearance or assembly gap. The frame clearance causes the battery pack and heat dissipation structure to shake during driving. When the assembly gap is too large, the bumps or slight collisions during vehicle driving can easily cause the battery pack to shift, causing safety hazards such as cell damage and leakage. When the assembly gap is too small, it cannot offset the volume change caused by the thermal expansion of the cells and battery pack, causing the cells to be squeezed and deformed, and short-circuited.
[0004] Therefore, in order to improve or solve at least one of the above problems, a new energy vehicle battery pack heat dissipation structure is provided that can achieve heat dissipation of the battery pack, avoid local overheating of the cells and battery pack, improve the safety, performance and service life of the new energy vehicle battery pack, reduce the impact of assembly gaps on the battery pack, avoid battery pack displacement, cell damage and leakage caused by excessive assembly gaps, and avoid cell compression deformation and short circuit caused by excessive assembly gaps. Summary of the Invention
[0005] This invention addresses the aforementioned problems and aims to provide a heat dissipation structure for new energy vehicle battery packs. This structure effectively dissipates heat from the battery cells and pack, preventing localized overheating and improving the safety, performance, and lifespan of the battery pack. It also reduces the impact of assembly gaps on the battery pack, preventing issues like battery pack displacement, cell damage, and leakage caused by excessively large assembly gaps, and preventing cell deformation and short circuits caused by excessively small assembly gaps. To achieve these objectives, the technical solution adopted by this invention is as follows: This invention provides a heat dissipation structure for a new energy vehicle battery pack, which includes a frame, a cooling unit, and an airbag unit. The frame is disposed on the outside of the battery pack, the airbag unit is disposed between the frame and the battery pack, and the cooling unit is disposed on the frame.
[0006] In the new energy automobile battery pack heat dissipation structure provided by the application, the air bag unit can further comprise an air bag cushion and an air bag body arranged on the air bag cushion, and the air bag cushion is arranged on the frame.
[0007] In the new energy automobile battery pack heat dissipation structure provided by the application, the air bag body is provided with expansion lines, the expansion lines are evenly designed on the air bag body, and the expansion lines are in a wave shape.
[0008] In the new energy automobile battery pack heat dissipation structure provided by the application, the air bag unit further comprises an inflation assembly, the inflation assembly comprises a gas pump, a connecting pipe and an L-shaped pipe, the gas pump is arranged on the frame, one end of the connecting pipe is connected with the gas pump, the other end of the connecting pipe is connected with the L-shaped pipe, one end of the L-shaped pipe away from the gas pump is connected with the air bag body, the air bag cushion is provided with a through hole, and the L-shaped pipe passes through the through hole.
[0009] In the new energy automobile battery pack heat dissipation structure provided by the application, the air bag unit further comprises a protective shell, the protective shell is arranged on the frame, and the protective shell covers the gas pump.
[0010] In the new energy automobile battery pack heat dissipation structure provided by the application, the cooling unit comprises a mounting frame, a storage tank, a heat exchange assembly, a circulating liquid pump, a water inlet hose, a water outlet hose and a cooling pipe group, the mounting frame is arranged on the frame, the storage tank is arranged on the mounting frame, the storage tank stores a cooling liquid, the heat exchange assembly is arranged on the mounting frame, the circulating liquid pump is connected with the circulating liquid pump, one end of the water inlet hose is connected with the circulating liquid pump, the other end of the water inlet hose is connected with the cooling pipe group, one end of the water outlet hose is connected with the cooling pipe group, and the other end of the water outlet hose is connected with the storage tank.
[0011] In the new energy automobile battery pack heat dissipation structure provided by the application, the cooling pipe group is arranged on the air bag cushion, and the cooling pipe group is in a meandering flow channel or a serpentine flow channel.
[0012] In the new energy automobile battery pack heat dissipation structure provided by the application, the mounting frame is provided with a heat exchange groove, the heat exchange assembly comprises a semiconductor refrigeration sheet, the semiconductor refrigeration sheet is arranged in the heat exchange groove, and a cold end of the semiconductor refrigeration sheet is attached to the storage tank.
[0013] In the new energy automobile battery pack heat dissipation structure provided by the application, the heat exchange assembly further comprises a fan support and a cooling fan, the fan support is arranged on the mounting frame, the cooling fan is arranged on the fan support, a blowing direction of the cooling fan is towards a hot end of the semiconductor refrigeration sheet, and a temperature control sensor is further arranged on the fan support.
[0014] In the new energy automobile battery pack heat dissipation structure provided by the application, the water inlet hose is provided with a flow control valve, and the water outlet hose is provided with a one-way valve.
[0015] The new energy automobile battery pack heat dissipation structure provided by the application includes a frame, a cooling unit and an air bag unit, the frame is arranged outside the battery pack, the air bag unit is arranged between the frame and the battery pack, and the cooling unit is arranged on the frame. The cooling unit can dissipate heat of the new energy automobile battery pack, avoid local overheating of the battery cell and the battery pack, and is beneficial to improving the safety, performance and service life of the new energy automobile battery pack. The air bag unit is filled between the frame and the battery pack, can reduce the influence of the assembly gap on the battery cell and the battery pack, can avoid problems of displacement of the battery pack, damage of the battery cell and liquid leakage caused by the assembly gap being too large, and can avoid problems of the battery cell being deformed and short-circuited caused by the assembly gap being too small The present specification includes the following drawings, and the contents shown are as follows: Figure 1 is a structure diagram of the new energy automobile battery pack heat dissipation structure in the embodiment of the application Figure One ; Figure 2 is a structure diagram of the new energy automobile battery pack heat dissipation structure in the embodiment of the application Figure Two ; Figure 3 is a structure diagram of the air bag unit in the embodiment of the application; Figure 4 is a structure diagram of the cooling unit in the embodiment of the application.
[0016] In the figure, the frame is marked as 10, the cooling unit is marked as 20, the mounting frame is marked as 21, the heat exchange groove is marked as 211, the storage tank is marked as 22, the heat exchange assembly is marked as 23, the semiconductor refrigeration sheet is marked as 231, the fan support is marked as 232, the heat dissipation fan is marked as 233, the temperature control sensor is marked as 234, the circulating liquid pump is marked as 24, the water inlet hose is marked as 25, the flow control valve is marked as 251, the water outlet hose is marked as 26, the cooling pipe group is marked as 27, the air bag unit is marked as 30, the air bag pad is marked as 31, the through hole is marked as 311, the air bag body is marked as 32, the expansion line is marked as 321, the inflating assembly is marked as 33, the air pump is marked as 331, the connecting pipe is marked as 332, the L-shaped pipe is marked as 333, and the protective shell is marked as 34.
[0017] The specific embodiments of the application are further described below with reference to the drawings, and the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the application, and to facilitate its implementation.
[0018] Figure 1 is a structure diagram of the new energy automobile battery pack heat dissipation structure in the embodiment of the application Figure One ;Figure 2 is a structural diagram of a new energy automobile battery pack heat dissipation structure in an embodiment of the present application Figure Two .
[0019] As shown in Figure 1 and Figure 2 , the new energy automobile battery pack heat dissipation structure provided by the present application includes a frame 10, a cooling unit 20 and an air bag unit 30. The frame 10 is square, and is arranged outside the new energy automobile battery pack. The air bag unit 30 is arranged between the frame 10 and the new energy automobile battery pack. The cooling unit 20 is arranged on the frame 10, and can achieve heat dissipation of the new energy automobile battery pack, thereby avoiding local overheating of the battery cell and the battery pack, and being conducive to improving the safety, performance and service life of the new energy automobile battery pack, slowing down the attenuation speed of the positive and negative electrode materials of the battery cell, prolonging the service life of the new energy automobile battery pack, and reducing the user's use cost. The air bag unit 30 is filled between the frame 10 and the new energy automobile battery pack, and can reduce the influence of the assembly gap on the battery cell and the battery pack. The frame 10, as the core carrier of the new energy automobile battery pack, can directly resist external forces such as road stone impact and vehicle collision, and bear the overall weight of the new energy automobile battery pack. The reasonable assembly gap between the frame 10 and the new energy automobile battery pack can buffer the vibration during vehicle driving, and avoid damage of the battery cell and the frame 10 and the modules due to rigid collision. When the assembly gap is too large, the amplitude of the battery cell and the battery pack in the frame 10 is increased, which can cause breakage of the tab of the battery cell, the connection wire harness and even the loosening of the module fixing structure. When the assembly gap is too large, the displacement of the battery pack, the damage of the battery cell and the leakage of liquid can be avoided. When the assembly gap is too small, the volume change caused by the thermal expansion of the battery cell and the battery pack cannot be offset, which can cause the battery cell to be squeezed and deformed, and short-circuited. At the same time, the heat dissipation channel of the cooling unit 20 is integrated between the frame 10 and the new energy automobile battery pack, and the heat generated by the battery cell and the battery pack during operation is conducted out. The frame 10 is made of aluminum alloy or other materials with good thermal conductivity, which is conducive to improving the heat dissipation efficiency of the battery cell and the battery pack, and avoiding heat runaway of the battery pack caused by high temperature. The reasonable assembly gap between the frame 10 and the new energy automobile battery pack can make air and cooling liquid flow uniformly through the surface of each battery cell, which is conducive to ensuring the uniformity of heat dissipation. When the assembly gap is too small, the heat flow is blocked, and local hot spots are prone to occur, which can accelerate the aging of the local battery cell. When the assembly gap is too large, the space utilization rate is reduced, and the heat is prone to stay in the gap, which also affects the heat dissipation effect.
[0020] Figure 3 is a structural diagram of an air bag unit in an embodiment of the present application As shown in Figure 3As shown, the air bag unit 30 includes an air bag cushion 31 and an air bag body 32 arranged on the air bag cushion 31, the air bag cushion 31 is arranged on the frame 10, the air bag cushion 31 is square and closely fitted on the inner wall of the frame 10, the air bag body 32 is provided with an inflation line 321, the inflation line 321 is designed on the inner side of the air bag body 32 in a wave shape, through the trend and distribution of the inflation line 321, the air bag body 32 can be inflated in a preset mode, and the reasonable assembly gap between the frame 10 and the new energy automobile battery pack can be reasonably filled, and the air bag body 32 can also buffer part of the external forces such as road stone impact and vehicle collision, at the same time, it is beneficial to reduce the impact force in the inflation process, avoid excessive extrusion of the battery cell and the battery pack, reduce the shaking amplitude of the battery cell and the battery pack in the frame 10, avoid the problems of fracture of the battery cell tab and the wire harness, and even looseness of the module fixing structure; the air bag body 32 can also offset the volume change caused by the thermal expansion of the battery cell and the battery pack, and avoid the problems of extrusion deformation and short circuit of the battery cell. At the same time, the battery cell and the battery pack itself has shape individual difference, and the traditional fixed shape filler is easy to cause different stress of different battery cell assemblies, and local uneven stress of a single battery cell may also occur, and in the present application, the air bag unit 30 is used to assist the inflation and compression characteristics of the air bag body 32, and the frame 10, the battery cell and the battery pack are closely fitted, even if the battery cell and the battery pack have shape difference, the air bag body 32 can also be self-adaptively adjusted, so that the stress of each position between the battery cell and the battery pack is uniform, and the air bag body 32 can also adapt to the thermal expansion and cold contraction of the battery cell during charging and discharging, so as to avoid the problem that the battery cell is extruded or loosened to accelerate the cycle attenuation, and the service life of the whole battery pack is prolonged.
[0021] The air bag unit also includes a gas filling assembly 33, the gas filling assembly 33 includes a gas pump 331, a connecting pipe 332 and an L-shaped pipe 333, the gas pump 331 is arranged on the frame 10, one end of the connecting pipe 332 is connected with the gas pump 331, the other end of the connecting pipe 332 is connected with the L-shaped pipe 333, one end of the L-shaped pipe 333 away from the gas pump 31 is connected with the air bag body 32, the air bag cushion 31 is provided with a through hole 311, the L-shaped pipe 333 passes through the through hole and is connected with the air bag body 32, and the gas pump 331 can fill gas into the air bag body 32, so that the air bag body 32 is inflated between the frame 10 and the new energy automobile battery pack, the assembly gap is filled, and the shaking amplitude of the battery cell and the battery pack in the frame 10 is reduced.
[0022] The air bag unit also includes a protective shell 34, the protective shell 34 is arranged on the frame 10 and covers the gas pump 331, so as to protect the gas pump 311 and prevent the gas pump 311 from being affected by bumps and dust impurities, and the reliability of the structure is improved.
[0023] Figure 4 It is a structure schematic view of the cooling unit in the embodiment of the present application.
[0024] As Figure 4 shown, the cooling unit 20 includes a mounting frame 21, a storage tank 22, a heat exchange assembly 23, a circulating liquid pump 24, a water inlet hose 25, a water outlet hose 26, and a cooling pipe group 27. The mounting frame 21 is arranged on the frame 10 and is annular and sleeved on the storage tank 22 to mount the storage tank 22 on the frame 10. The storage tank 22 stores cooling liquid. The heat exchange assembly 23 is arranged on the mounting frame 21 and is used to cool the cooling liquid in the storage tank 22 to realize the recycling use of the cooling liquid. The circulating liquid pump 24 is connected with the storage tank 22. One end of the water inlet hose 25 is connected with the circulating liquid pump 24, and the other end of the water inlet hose 25 is connected with the cooling pipe group 27. One end of the water outlet hose 26 is connected with the cooling pipe group 27, and the other end of the water outlet hose 26 is connected with the storage tank 22 to realize the circulation of the cooling liquid in the cooling unit 20, continuous heat exchange with the battery cells and the battery pack, and heat dissipation of the new energy automobile battery pack to avoid local overheating of the battery cells and the battery pack, which is beneficial to improve the safety, performance and service life of the new energy automobile battery pack, slow down the attenuation speed of the positive and negative electrode materials of the battery cells, prolong the use cycle of the new energy automobile battery pack, and reduce the user's use cost.
[0025] The cooling pipe group 27 is arranged on the airbag cushion 31 and is arranged in a meandering flow channel or a serpentine flow channel. The cooling pipe group 27 is uniformly laid around the airbag cushion 31 to realize uniform heat dissipation of the battery pack and direct contact heat dissipation to avoid environmental heat interference. The cooling pipe group 27 and the airbag cushion 31 are superimposed with the airbag body 32 for double buffering and synchronous cooling. The water inlet hose 25 is provided with a flow control valve 251 for adjusting the flow speed of the cooling liquid. The water outlet hose 26 is provided with a one-way valve 261 to prevent the cooling liquid in the storage tank 22 from flowing back and improve the reliability of the structure.
[0026] The mounting frame 21 is provided with a heat exchange groove 211, the heat exchange assembly 23 comprises a semiconductor refrigeration sheet 231, the semiconductor refrigeration sheet 231 is arranged in the heat exchange groove 211, the cold end of the semiconductor refrigeration sheet 231 is attached to the storage tank 22, the heat exchange assembly 23 further comprises a fan bracket 232 and a cooling fan 233, the fan bracket 232 is arranged on the mounting frame 21, the cooling fan 233 is arranged on the fan bracket 232, the air supply direction of the cooling fan 233 is towards the hot end of the semiconductor refrigeration sheet 231, the semiconductor refrigeration sheet 231 is electrified, when the direct current passes through the electric couple of the P-type (hole type) and N-type (electron type) semiconductors of the semiconductor refrigeration sheet 231, the holes in the P-type semiconductor and the electrons in the N-type semiconductor will move directionally under the action of the electric field, at the cold end of the electric couple, the holes and the electrons meet and recombine, this process will absorb heat from the surrounding environment, so that the temperature of the cold end is reduced, that is, the semiconductor refrigeration sheet 231 absorbs heat from the cooling liquid in the storage tank 22, realizes the cooling of the cooling liquid, forms a closed loop circulation of the cooling liquid, avoids the cooling liquid from being retained and heated, and maintains the continuous cooling capacity of the cooling liquid and the cooling unit 20; at the hot end of the electric couple, the holes and the electrons are separated and move under the action of the external circuit, release heat to the surrounding environment, so that the temperature of the hot end is increased, in the refrigeration process, the heat is discharged through the cooling fan 233, so as to avoid the refrigeration effect of the semiconductor refrigeration sheet 231 from being invalid or damaged. The fan bracket 232 is further provided with a temperature control sensor 234, the temperature control sensor 234 can monitor the temperature change of the hot end of the semiconductor refrigeration sheet 231, effectively avoids the refrigeration effect of the semiconductor refrigeration sheet 231 from being invalid or damaged, and improves the reliability of the structure.
[0027] Effects of the embodiment The new energy automobile battery pack heat dissipation structure provided by the application comprises a frame 10, a cooling unit 20 and an air bag unit 30. The frame 10 is square, and is arranged outside the new energy automobile battery pack. The air bag unit 30 is arranged between the frame 10 and the new energy automobile battery pack. The cooling unit 20 is arranged on the frame 10, and can realize heat dissipation of the new energy automobile battery pack, so as to avoid local overheating of the battery cell and the battery pack, and is beneficial to improving the safety, performance and service life of the new energy automobile battery pack, slowing down the attenuation speed of the positive and negative electrode materials of the battery cell, prolonging the service life of the new energy automobile battery pack, and reducing the use cost of the user. The air bag unit 30 is filled between the frame 10 and the new energy automobile battery pack, which can reduce the influence of the assembly gap on the battery cell and the battery pack. The frame 10 is the core carrier of the new energy automobile battery pack, and can directly resist external forces such as road stone impact and vehicle collision, and bear the overall weight of the new energy automobile battery pack. The reasonable assembly gap between the frame 10 and the new energy automobile battery pack can buffer the vibration during vehicle driving, avoid damage of the battery cell and the frame 10 and the module due to rigid collision, avoid the problem that when the assembly gap is too large, the shaking range of the battery cell and the battery pack in the frame 10 is increased, the tab of the battery cell, the connection wire harness is broken, and even the module fixing structure is loose, avoid the problem that when the assembly gap is too large, the battery pack is displaced, the battery cell is damaged, and liquid leakage occurs, and avoid the problem that when the assembly gap is too small, the volume change caused by the thermal expansion of the battery cell and the battery pack cannot be offset, the battery cell is squeezed and deformed, and short circuit occurs. At the same time, the heat dissipation channel of the cooling unit 20 is integrated between the frame 10 and the new energy automobile battery pack, the heat generated by the battery cell and the battery pack during operation is led out, the frame 10 is made of aluminum alloy or other materials with good thermal conductivity, which is beneficial to improving the heat dissipation efficiency of the battery cell and the battery pack, avoiding heat runaway of the battery pack caused by high temperature, and the reasonable assembly gap between the frame 10 and the new energy automobile battery pack can make air and cooling liquid flow uniformly through the surface of each battery cell, which is beneficial to ensuring the uniformity of heat dissipation. When the assembly gap is too small, the heat flow is blocked, and local hot spots are prone to occur, which accelerates the aging of local battery cells. When the assembly gap is too large, the space utilization rate is reduced, and the heat is prone to stay in the gap, which also affects the heat dissipation effect.
[0028] The application is described above with reference to the drawings. Obviously, the specific implementation of the application is not limited to the above manner. As long as various non-essential improvements are made by adopting the method concept and technical solution of the application, or the above-mentioned concept and technical solution of the application is directly applied to other occasions without improvement, they are all within the protection scope of the application.
Claims
1. A heat dissipation structure for a new energy vehicle battery pack, characterized in that, The device includes a frame (10), a cooling unit (20), and an airbag unit (30). The frame (10) is disposed on the outside of the battery pack, the airbag unit (30) is disposed between the frame (10) and the battery pack, and the cooling unit (20) is disposed on the frame (10).
2. The heat dissipation structure for a new energy vehicle battery pack according to claim 1, characterized in that, The airbag unit (30) includes an airbag pad (31) and an airbag body (32) disposed on the airbag pad (31), the airbag pad (31) being disposed on the frame (10).
3. The heat dissipation structure for a new energy vehicle battery pack according to claim 2, characterized in that, The airbag body (32) is provided with expansion patterns (321), which are uniformly designed on the airbag body (32) and are wavy.
4. The heat dissipation structure for a new energy vehicle battery pack according to claim 2, characterized in that, The airbag unit (30) also includes an inflation assembly (33), which includes an air pump (331), a connecting pipe (332), and an L-shaped tube (333). The air pump (331) is mounted on the frame (10). One end of the connecting pipe (332) is connected to the air pump (331), and the other end of the connecting pipe (332) is connected to the L-shaped tube (333). The end of the L-shaped tube (333) away from the air pump (331) is connected to the airbag body (32). The airbag pad (31) is provided with a through hole (311), and the L-shaped tube (333) passes through the through hole (311).
5. The heat dissipation structure for a new energy vehicle battery pack according to claim 4, characterized in that, The airbag unit (30) also includes a protective housing (34), which is disposed on the frame (10) and covers the air pump (331).
6. The heat dissipation structure for a new energy vehicle battery pack according to claim 2, characterized in that, The cooling unit (20) includes a mounting bracket (21), a storage tank (22), a heat exchange assembly (23), a circulating liquid pump (24), an inlet hose (25), an outlet hose (26), and a cooling pipe assembly (27). The mounting bracket (21) is mounted on the frame (10). The storage tank (22) is mounted on the mounting bracket (21) and contains coolant. The heat exchange assembly (23) is mounted on the mounting bracket (21). The circulating liquid pump (24) is connected to the storage tank (22). One end of the inlet hose (25) is connected to the circulating liquid pump (24), and the other end of the inlet hose (25) is connected to the cooling pipe assembly (27). One end of the outlet hose (26) is connected to the cooling pipe assembly (27), and the other end of the outlet hose (26) is connected to the storage tank (22).
7. The heat dissipation structure for a new energy vehicle battery pack according to claim 6, characterized in that, The cooling pipe assembly (27) is disposed on the airbag cushion (31), and the cooling pipe assembly (27) is in the form of a loop or a serpentine flow channel.
8. The heat dissipation structure for a new energy vehicle battery pack according to claim 6, characterized in that, The mounting bracket (21) is provided with a heat exchange groove (211), and the heat exchange assembly (23) includes a semiconductor cooling chip (231). The semiconductor cooling chip (231) is disposed in the heat exchange groove (211), and the cold end of the semiconductor cooling chip (231) is in contact with the storage tank (22).
9. The heat dissipation structure for a new energy vehicle battery pack according to claim 8, characterized in that, The heat exchange assembly (23) also includes a fan bracket (232) and a cooling fan (233). The fan bracket (232) is mounted on the mounting bracket (21), and the cooling fan (233) is mounted on the fan bracket (232). The airflow direction of the cooling fan (233) is towards the hot end of the semiconductor cooling chip (231). The fan bracket (232) is also provided with a temperature control sensor (234).
10. The heat dissipation structure for a new energy vehicle battery pack according to claim 9, characterized in that, The inlet hose (25) is equipped with a flow control valve (251), and the outlet hose (26) is equipped with a check valve (261).