Efficient shovel tooth cooling fin structure for new energy automobile battery

Abstract

The invention relates to the technical field of battery heat dissipation, and discloses an efficient shovel tooth cooling fin structure for a new energy automobile battery, the efficient shovel tooth cooling fin structure comprises a mounting frame and ventilation openings formed in the front wall and the rear wall of the mounting frame, the top of the mounting frame is fixedly connected with a U-shaped heat conduction frame, and a plurality of main cooling fins in a linear array are integrally arranged on the lower wall of the U-shaped heat conduction frame; the bottom of the U-shaped heat conduction frame is provided with a plurality of ventilation gaps which are formed by main cooling fins and are in butt joint with the ventilation openings, and the bottom of the U-shaped heat conduction frame movably abuts against a sealing plate which is in sliding clamping connection with the inner wall of the installation frame. According to different heat dissipation requirements, single air cooling heat dissipation can be controlled to be enhanced to air cooling and liquid cooling common heat dissipation, the double heat dissipation adjusting assemblies can increase the number of cooling fins and uniformly adjust ventilation gaps in the period, the purpose of adjusting the air cooling heat dissipation intensity step by step is achieved, the liquid cooling heat dissipation intensity is cooperatively enhanced step by step, and the heat dissipation efficiency is improved. Therefore, the heat dissipation effect of the battery is efficiently improved, the compact layout of the battery compartment is more adapted, and the practicability is higher.

Description

Technical Field

[0001] This invention relates to the field of battery heat dissipation technology, specifically to a high-efficiency spade-shaped heat sink structure for new energy vehicle batteries. Background Technology

[0002] The power battery is the core component of new energy electric vehicles, providing power for them. The performance of the power battery directly affects the performance of the electric vehicle. Power batteries are generally large and occupy a space in the vehicle's chassis. With advancements in power battery technology, the range of new energy vehicles has been significantly improved. However, the higher the battery's operating power, the more heat it generates during use, necessitating more efficient heat dissipation solutions.

[0003] Chinese patent application CN116598641A discloses a heat dissipation structure for an electric vehicle battery. This structure includes at least: a battery unit with multiple battery components arranged in parallel, each component equipped with a heat dissipation element for cooling medium flow; a support unit located at the bottom of the battery unit for supporting and connecting the battery components; and a synchronization unit for connecting several battery components to group them within the battery unit. The grouped battery components are divided into fixed and movable groups. The fixed group's battery components are fixedly connected to the support unit, while the movable group's battery components are movably connected to the support unit. The movable group's battery components are connected to a drive module, which drives the movable group's battery components to move relative to the fixed group's battery components, thereby increasing the heat dissipation area. This invention helps solve the problems of isolated heat dissipation methods and insufficient flexibility in heat dissipation modes.

[0004] The electric vehicle battery cooling structure in the aforementioned patent uses a combination of air cooling and liquid cooling to achieve heat dissipation during operation. Air cooling is achieved by dual fans installed at the bottom of the battery, but the two battery packs need to be moved and separated to maximize air cooling. Even after separation, there is still overlap, and direct fan blowing is not enough for even heat dissipation, resulting in poor cooling effect. Controlling the movement and separation of the battery packs requires a large volume, which is not conducive to the stability of battery installation. Liquid cooling uses a heat dissipation plate connected to both sides of the battery and containing liquid cooling channels. Although the liquid cooling channels are relatively curved, the flow diversion area of ​​the heat dissipation medium is not smooth enough and the diversion channel is narrow, which easily increases flow resistance. Furthermore, the inlet and outlet positions of the liquid cooling channels change when the battery packs are moved and separated, which is not conducive to heat dissipation and control of the entry and exit of cooling medium. In addition, liquid cooling and air cooling operate independently, and the coordinated control of heat dissipation effect is poor. Summary of the Invention

[0005] The purpose of this invention is to address the problems of poor heat dissipation and coordination between different heat dissipation methods, lack of optimized space utilization, and inconvenience in controlling the entry and exit of cooling media in general electric vehicle battery heat dissipation structures during operation. This invention provides a high-efficiency shovel-tooth heat sink structure for new energy vehicle batteries.

[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution: A high-efficiency toothed heat sink structure for new energy vehicle batteries includes a mounting frame and ventilation openings on the front and rear walls of the mounting frame. A U-shaped heat-conducting frame is fixedly connected to the top of the mounting frame. A plurality of linear array main heat sinks are integrally arranged on the lower wall of the U-shaped heat-conducting frame. The bottom of the U-shaped heat-conducting frame has a plurality of ventilation gaps formed by the main heat sinks that are connected to the ventilation openings. A sealing plate that is movably abutted against the bottom of the U-shaped heat-conducting frame and slidably engaged with the inner wall of the mounting frame is provided on the sealing plate. A dual heat dissipation adjustment component is provided on the sealing plate to increase the number of heat sinks and uniformly adjust the ventilation gaps. Two touch switches are installed on the front and back of the right wall of the U-shaped heat conduction frame. The dual heat dissipation adjustment component can trigger the two touch switches in sequence. The front and back sides of the upper wall of the U-shaped heat conduction frame are staggered with serpentine heat exchange tube one and serpentine heat exchange tube two that can independently enter liquid. The two touch switches in front and back electrically control the liquid entering serpentine heat exchange tube one and serpentine heat exchange tube two respectively.

[0007] Furthermore, the dual heat dissipation adjustment assembly includes an outer U-shaped frame that is slidably inserted into the bottom of the sealing plate. The upper wall of the outer U-shaped frame is integrally provided with a plurality of linearly arrayed secondary heat dissipation fins. An inner U-shaped frame is slidably inserted into the outer U-shaped frame. The upper wall of the inner U-shaped frame is integrally provided with a plurality of linearly arrayed secondary heat dissipation fins. Both the first and second secondary heat dissipation fins are slidably inserted into the sealing plate. The first secondary heat dissipation fin is aligned with the middle of the ventilation gap at the bottom of the U-shaped heat-conducting frame, and the second secondary heat dissipation fin is aligned with the right edge of the ventilation gap at the bottom of the U-shaped heat-conducting frame.

[0008] Furthermore, the dual heat dissipation adjustment assembly also includes guide grooves one on the left and right side walls of the outer U-shaped frame, guide grooves two on the left and right side walls of the inner U-shaped frame, telescopic cylinders installed at both ends of the U-shaped heat conduction frame, telescopic cylinders having telescopic ends at the rear and slidingly engaging with the outer wall of the U-shaped heat conduction frame, and pins one on the telescopic ends of the telescopic cylinders respectively engaging with guide grooves one and two, and the rear end of the telescopic ends of the telescopic cylinders having rounded corners and being able to press and trigger two touch switches respectively.

[0009] Furthermore, the first guide groove is composed of an upper outer inclined groove and a lower outer straight groove connected together from front to back, and the second guide groove is composed of an upper inner straight groove and a lower inner inclined groove connected together from front to back. The front-to-back distance between the two ends of the outer inclined groove is equal to the length of the inner straight groove, and the length of the outer straight groove is equal to the front-to-back distance between the two ends of the inner inclined groove.

[0010] Furthermore, the left and right sides of the U-shaped heat-conducting frame are respectively surrounded by ceramic heat-insulating plates, and a heat-conducting silicone pad at the top of the ventilation gap is fixedly connected to the lower wall of the U-shaped heat-conducting frame.

[0011] Furthermore, inclined guide grooves are provided on both the left and right sides of the front and rear walls of the inner cavity of the mounting frame, and pins are provided around the inner U-shaped frame to be movably engaged with the inclined guide grooves.

[0012] Furthermore, a solenoid valve is installed at the inlet of the first serpentine heat exchanger tube and a solenoid valve is installed at the inlet of the second serpentine heat exchanger tube. Two insulated liquid inlet pipes are embedded in the lower middle part of the U-shaped heat-conducting frame and are respectively connected to the inlets of the first and second serpentine heat exchanger tubes. Two liquid outlet pipes are embedded in the upper middle part of the U-shaped heat-conducting frame and are respectively connected to the outlets of the first and second serpentine heat exchanger tubes. Both the liquid outlet pipes and the insulated liquid inlet pipes extend from the left wall of the U-shaped heat-conducting frame and are externally connected to a cooling circulation mechanism.

[0013] The beneficial effects of this invention are as follows: 1. This invention can control the cooling from a single air-cooling method to a combined air-cooling and liquid-cooling method according to different heat dissipation requirements. During this process, the dual heat dissipation adjustment components can increase the number of heat sinks and uniformly adjust the ventilation gaps to achieve the purpose of gradually adjusting the air-cooling intensity. In addition, two touch switches are triggered in sequence to open the staggered serpentine heat exchange tubes one and two respectively. This achieves the gradual enhancement of liquid-cooling intensity on the basis of coordinated air-cooling and uniform liquid-cooling, thereby efficiently improving the heat dissipation effect of the battery.

[0014] 2. This invention utilizes a serpentine heat exchanger tube system with staggered front and rear installations, each with independent liquid inlet and a serpentine design. The liquid inlet and outlet control pipeline design is simple and easy to control, and it avoids the temperature differences in different parts of the U-shaped heat conduction frame, ensuring smooth flow of coolant, uniform cooling and heat dissipation, and good control effect. Combined with the U-shaped heat conduction frame, it directly absorbs and conducts battery heat downwards, eliminating the need to adjust battery movement to assist in heat dissipation. This makes battery use safer and more stable. Furthermore, the operation of the dual heat dissipation adjustment components requires less space and can better adapt to the compact layout of the battery compartment, making it more practical. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the heat sink structure of the present invention; Figure 2 This is a three-dimensional sectional view of the mounting frame portion of the heat sink structure of the present invention; Figure 3 The explosion occurred in the first and second parts of the secondary heat sink structure of this invention. Figure 1 ; Figure 4The explosion occurred in the first and second parts of the secondary heat sink structure of this invention. Figure 2 ; Figure 5 This is a three-dimensional structural diagram of the heat sink structure of the present invention, consisting of two parts: the inclined guide groove and the pin. Figure 6 This invention relates to a three-dimensional structure of two parts: the heat sink structure and the serpentine heat exchange tube. Figure 1 ; Figure 7 This invention relates to a three-dimensional structure of two parts: the heat sink structure and the serpentine heat exchange tube. Figure 2 .

[0016] Reference numerals in the attached diagram: 1. Mounting frame; 11. Angled guide groove; 2. U-shaped heat-conducting frame; 21. Main heat sink; 22. Thermally conductive silicone pad; 23. Telescopic cylinder; 24. Pin 1; 25. Touch switch; 3. Insulated liquid inlet pipe; 31. Serpentine heat exchange tube 1; 32. Serpentine heat exchange tube 2; 33. Solenoid valve 1; 34. Solenoid valve 2; 35. Liquid outlet pipe; 4. Sealing plate; 5. Outer U-shaped frame; 51. Secondary heat sink 1; 52. Guide groove 1; 6. Inner U-shaped frame; 61. Secondary heat sink 2; 62. Guide groove 2; 63. Pin 2. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0018] Example 1, as Figures 1-7 As shown, a high-efficiency spade-shaped heat sink structure for new energy vehicle batteries includes a mounting frame 1 and ventilation openings on the front and rear walls of the mounting frame 1. A U-shaped heat-conducting frame 2 is fixedly connected to the top of the mounting frame 1. A number of main heat sinks 21 in a linear array are integrally arranged on the lower wall of the U-shaped heat-conducting frame 2. The bottom of the U-shaped heat-conducting frame 2 has a number of ventilation gaps formed by the main heat sinks 21 that are connected to the ventilation openings. A sealing plate 4 that is movably abutted against the bottom of the U-shaped heat-conducting frame 2 and slidably engaged with the inner wall of the mounting frame 1 is provided on the sealing plate 4. A dual heat dissipation adjustment component is provided on the sealing plate 4 to increase the number of heat sinks and uniformly adjust the ventilation gaps. Two touch switches 25 are installed on the front and back of the right wall of the U-shaped heat conduction frame 2. The dual heat dissipation adjustment component can trigger the two touch switches 25 in sequence. The front and back sides of the upper wall of the U-shaped heat conduction frame 2 are staggered with serpentine heat exchange tube 1 31 and serpentine heat exchange tube 2 32 that can independently enter liquid. The two touch switches 25 electrically control the liquid entering serpentine heat exchange tube 1 31 and serpentine heat exchange tube 2 32 respectively.

[0019] In use, this shovel-tooth heat sink structure is installed at the bottom of the battery and needs to be used in conjunction with an active fan mounted under the vehicle to blow air through the vents. The upper wall of the U-shaped heat-conducting frame 2 is in direct, seamless contact with the battery. When the heat generated by the battery is low, the heat is conducted to the main heat sink 21 through the U-shaped heat-conducting frame 2. Controlling the active fan to run at low power can blow away the heat on the main heat sink 21. When the heat generated by the battery is high, the dual heat dissipation adjustment component increases the number of heat sinks, directly expanding the heat dissipation area. At the same time, the power of the active fan automatically increases, thereby enhancing air circulation and improving the heat dissipation effect. The corresponding dual heat dissipation adjustment component triggers the front touch switch 25, thereby opening the individual serpentine heat exchange tubes 31 with independent liquid inlet to assist in heat dissipation. Subsequently, when the heat generated by the battery is even higher... When the dual heat dissipation adjustment component is in operation, it increases the number of heat sinks and evenly adjusts the ventilation gaps to ensure uniform airflow and heat dissipation. Similarly, the dual heat dissipation adjustment component triggers the touch switch 25 on the back side, thereby opening each independently inlet serpentine heat exchange tube 32 to further cooperate in heat dissipation, making the heat dissipation more uniform and comprehensive. This allows for control from single air cooling to combined air cooling and liquid cooling according to different heat dissipation needs, thereby efficiently improving the heat dissipation effect of the battery. Since the U-shaped heat conduction frame 2 directly absorbs and conducts the battery heat downward, there is no need to adjust the battery movement to make room for heat dissipation, making the battery use safer and more stable. Moreover, the operation of the dual heat dissipation adjustment component has a small space occupation volume, which can better adapt to the compact layout of the battery compartment and has higher practicality.

[0020] In embodiment two, based on the above embodiment, the dual heat dissipation adjustment assembly includes an outer U-shaped frame 5 that is slidably inserted into the bottom of the sealing plate 4. The upper wall of the outer U-shaped frame 5 is integrally provided with a plurality of linear arrays of secondary heat dissipation fins 51. An inner U-shaped frame 6 is slidably inserted into the outer U-shaped frame 5. The upper wall of the inner U-shaped frame 6 is integrally provided with a plurality of linear arrays of secondary heat dissipation fins 61. Both the first and second secondary heat dissipation fins 51 are slidably inserted into the sealing plate 4. The first secondary heat dissipation fin 51 is aligned with the middle of the ventilation gap at the bottom of the U-shaped heat conduction frame 2, and the second secondary heat dissipation fin 61 is aligned with the right edge of the ventilation gap at the bottom of the U-shaped heat conduction frame 2.

[0021] Both the initial secondary heat sink 51 and the secondary heat sink 61 are slidably inserted into the sealing plate 4, and their top ends do not exceed the upper wall of the sealing plate 4. This ensures that when the active fan is running at low power, it does not occupy the internal space of the ventilation gap, thus avoiding interference with airflow and affecting heat dissipation.

[0022] In embodiment three, based on the above embodiments, the dual heat dissipation adjustment assembly further includes guide grooves 52 on the left and right side walls of the outer U-shaped frame 5, guide grooves 62 on the left and right side walls of the inner U-shaped frame 6, and telescopic cylinders 23 installed at both ends of the U-shaped heat conduction frame 2. The telescopic cylinders 23 have telescopic ends on their rear sides and are slidably engaged with the outer wall of the U-shaped heat conduction frame 2. The telescopic ends of the telescopic cylinders 23 are provided with pins 24 that are movably engaged with guide grooves 52 and 62 respectively.

[0023] Guide groove 1 52 is composed of an upper outer inclined groove and a lower outer straight groove connected together from front to back. Guide groove 2 62 is composed of an upper inner straight groove and a lower inner inclined groove connected together from front to back. The front-to-back distance between the two ends of the outer inclined groove is equal to the length of the inner straight groove, and the length of the outer straight groove is equal to the front-to-back distance between the two ends of the inner inclined groove.

[0024] Initially, the telescopic cylinder 23 uses pin 24 to engage with guide groove 52 and guide groove 62 respectively, thereby restricting the secondary heat sink 51 and secondary heat sink 61 from moving upward into the ventilation gap, interfering with airflow and affecting heat dissipation. When heat dissipation needs to be enhanced, the telescopic cylinders 23 on both sides are controlled to extend synchronously, driving pin 24 to move backward. Pin 24 then squeezes the outer inclined groove in guide groove 52 first, driving the outer U-shaped frame 5 to move the secondary heat sink 51 upward and into the ventilation gap. When pin 24 moves backward to the end of the outer inclined groove, it stops, thereby driving the secondary heat sink 51 to abut against the lower wall of the U-shaped heat conduction frame 2 to achieve heat transfer, thereby increasing the heat dissipation area. In conjunction with the active fan, the power is increased according to the feedback control of the first stage of the telescopic cylinder 23, thereby enhancing the heat dissipation effect. When pin 24 moves backward to the end of the outer inclined groove, it stops. Pin 24 has just moved to the end of the inner straight groove. When further heat dissipation is needed, the telescopic cylinders 23 on both sides continue to extend synchronously. Pin 24 moves backward along the outer straight groove and the inner inclined groove, so as not to drive the secondary heat sink 51 to continue to move upward, but to drive the inner U-shaped frame 6 to move the secondary heat sink 61 upward. When the telescopic cylinder 23 extends to its maximum length and drives pin 24 to the end of the inner inclined groove, the secondary heat sink 61 is just driven to abut against the lower wall of the U-shaped heat conduction frame 2 to achieve heat transfer, thereby further increasing the heat dissipation area. In conjunction with the active fan, the power is increased again according to the feedback control of the second stage of the telescopic cylinder 23, thereby further enhancing the heat dissipation effect.

[0025] In Example 4, based on the above examples, the left and right sides of the U-shaped heat-conducting frame 2 are respectively surrounded by ceramic heat-insulating plates, and the lower wall of the U-shaped heat-conducting frame 2 is fixedly connected to a heat-conducting silicone pad 22 located at the top of the ventilation gap.

[0026] The heat insulation design of the left and right sides of the U-shaped heat-conducting frame 2 prevents heat from being conducted to the telescopic cylinder 23 and affecting its normal operation. The design of the thermally conductive silicone pad 22 ensures seamless contact between the secondary heat sink 51 and the secondary heat sink 61 and the lower wall of the U-shaped heat-conducting frame 2, so that heat can be reliably conducted. In addition, the deformation capability of the thermally conductive silicone pad 22 can also ensure that when the position of the secondary heat sink 51 is finely adjusted in the future, the thermally conductive silicone pad 22 will be slightly deformed under pressure to achieve a seamless thermal connection.

[0027] In Example 5, based on the above examples, inclined guide grooves 11 are provided on both the left and right sides of the front and rear walls of the inner cavity of the mounting frame 1, and pins 63 that are movably engaged with the inclined guide grooves 11 are provided around the inner U-shaped frame 6.

[0028] When the secondary heat sink 61 moves upward by the extension cylinder 23 driving the pin 24, the ventilation gap caused by the secondary heat sink 61 will be unevenly distributed. However, by using the inclined guide groove 11 to guide and restrict the pin 2 63, when the secondary heat sink 61 moves upward, the pin 2 63 drives the secondary heat sink 61 to move to the left simultaneously. Correspondingly, the secondary heat sink 61 squeezes the outer U-shaped frame 5, causing the secondary heat sink 51 to move to the left. The outer U-shaped frame 5 drives the sealing plate 4 to move to the left simultaneously, thereby achieving uniform adjustment of the ventilation gap, ensuring uniform and smooth ventilation, and uniform and reliable heat dissipation. During this period, the guide groove 52 and the guide groove 62 can slide to the left on the pin 24 without disengaging.

[0029] In Example 6, based on the above examples, the telescopic cylinder 23 has a rounded rear end and can be squeezed to trigger two touch switches 25 respectively. A solenoid valve 33 is installed at the inlet of the first serpentine heat exchange tube 31, and a solenoid valve 34 is installed at the inlet of the second serpentine heat exchange tube 32. Two heat-insulating liquid inlet pipes 3 are embedded in the lower middle part of the U-shaped heat-conducting frame 2, which are respectively connected to the inlets of the first and second serpentine heat exchange tubes 31 and the second serpentine heat exchange tube 32. Two liquid outlet pipes 35 are embedded in the upper middle part of the U-shaped heat-conducting frame 2, which are respectively connected to the outlets of the first and second serpentine heat exchange tubes 31 and the second serpentine heat exchange tube 32. Both the liquid outlet pipes 35 and the heat-insulating liquid inlet pipes 35 extend from the left wall of the U-shaped heat-conducting frame 2 and are externally connected to a cooling circulation mechanism.

[0030] Coolant is delivered through the insulated liquid inlet pipe 3, and the inlets of the front and rear serpentine heat exchange pipes 31 and 32 are independently connected to the insulated liquid inlet pipe 3, thereby avoiding the temperature difference of each part of the U-shaped heat-conducting frame 2 and achieving uniform heat exchange and cooling. While controlling the extension of the two sections of the telescopic cylinder 23 to adjust the intensity of air cooling in stages, the telescopic ends of the telescopic cylinder 23 sequentially press and trigger two touch switches 25, which respectively open the solenoid valve 33 on the staggered serpentine heat exchange tube 31 and the solenoid valve 34 on the serpentine heat exchange tube 32. The external cooling circulation mechanism can control the circulation flow rate according to the feedback of the two-section operation of the telescopic cylinder 23, thereby achieving a combination of uniform liquid cooling and coordinated air cooling, and progressively enhanced liquid cooling intensity, which effectively improves the heat dissipation effect of the battery.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency spade-shaped heat sink structure for new energy vehicle batteries, comprising a mounting frame (1) and ventilation openings on the front and rear walls of the mounting frame (1), characterized in that, The top of the mounting frame (1) is fixedly connected to a U-shaped heat-conducting frame (2). The lower wall of the U-shaped heat-conducting frame (2) is integrally provided with a number of linear array main heat sinks (21). The bottom of the U-shaped heat-conducting frame (2) has a number of ventilation gaps formed by the main heat sinks (21) that are connected to the ventilation openings. The bottom of the U-shaped heat-conducting frame (2) is movably abutted against a sealing plate (4) that is slidably engaged with the inner wall of the mounting frame (1). The sealing plate (4) is provided with a dual heat dissipation adjustment component that increases the number of heat sinks and evenly adjusts the ventilation gaps. Two touch switches (25) are installed on the front and back of the right wall of the U-shaped heat conduction frame (2). The dual heat dissipation adjustment component can trigger the two touch switches (25) in sequence. The front and back sides of the upper wall of the U-shaped heat conduction frame (2) are staggered with serpentine heat exchange tube one (31) and serpentine heat exchange tube two (32) that can independently enter liquid. The two touch switches (25) in the front and back respectively electrically control the liquid entering the serpentine heat exchange tube one (31) and serpentine heat exchange tube two (32).

2. The high-efficiency toothed heat sink structure for new energy vehicle batteries according to claim 1, characterized in that, The dual heat dissipation adjustment assembly includes an outer U-shaped frame (5) that is slidably inserted into the bottom of the sealing plate (4). The upper wall of the outer U-shaped frame (5) is integrally provided with a plurality of linear arrays of secondary heat dissipation fins (51). An inner U-shaped frame (6) is slidably inserted into the outer U-shaped frame (5). The upper wall of the inner U-shaped frame (6) is integrally provided with a plurality of linear arrays of secondary heat dissipation fins (61). Both the secondary heat dissipation fins (51) and the secondary heat dissipation fins (61) are slidably inserted into the sealing plate (4). The secondary heat dissipation fins (51) are aligned with the middle of the ventilation gap at the bottom of the U-shaped heat conduction frame (2). The secondary heat dissipation fins (61) are aligned with the right edge of the ventilation gap at the bottom of the U-shaped heat conduction frame (2).

3. The high-efficiency toothed heat sink structure for new energy vehicle batteries according to claim 2, characterized in that, The dual heat dissipation adjustment assembly also includes a guide groove 1 (52) on the left and right side walls of the outer U-shaped frame (5), and a guide groove 2 (62) on the left and right side walls of the inner U-shaped frame (6). Telescopic cylinders (23) are installed at both ends of the U-shaped heat conduction frame (2). The telescopic cylinder (23) has a telescopic end on the rear side and slides and engages with the outer wall of the U-shaped heat conduction frame (2). The telescopic end of the telescopic cylinder (23) is provided with a pin 1 (24) that is movably engaged with the guide groove 1 (52) and the guide groove 2 (62). The telescopic end of the telescopic cylinder (23) has rounded corners and can be squeezed to trigger two touch switches (25).

4. The high-efficiency spade-shaped heat sink structure for new energy vehicle batteries according to claim 3, characterized in that, The first guide groove (52) is composed of an upper outer inclined groove and a lower outer straight groove connected from front to back. The second guide groove (62) is composed of an upper inner straight groove and a lower inner inclined groove connected from front to back. The front-to-back distance between the two ends of the outer inclined groove is equal to the length of the inner straight groove, and the length of the outer straight groove is equal to the front-to-back distance between the two ends of the inner inclined groove.

5. The high-efficiency spade-shaped heat sink structure for new energy vehicle batteries according to claim 4, characterized in that, The left and right sides of the U-shaped heat-conducting frame (2) are respectively surrounded by ceramic heat-insulating plates, and the lower wall of the U-shaped heat-conducting frame (2) is fixedly connected to a heat-conducting silicone pad (22) at the top of the ventilation gap.

6. The high-efficiency spade-shaped heat sink structure for new energy vehicle batteries according to claim 5, characterized in that, The mounting frame (1) has inclined guide grooves (11) on both the left and right sides of the front and rear walls of the inner cavity, and the inner U-shaped frame (6) has pins (63) that are movably engaged with the inclined guide grooves (11) around its perimeter.

7. The high-efficiency toothed heat sink structure for new energy vehicle batteries according to claim 6, characterized in that, The inlet of the first serpentine heat exchange tube (31) is equipped with a solenoid valve (33), and the inlet of the second serpentine heat exchange tube (32) is equipped with a solenoid valve (34). Two heat-insulating liquid inlet pipes (3) are buried in the lower middle part of the U-shaped heat-conducting frame (2) and are respectively connected to the inlets of the first and second serpentine heat exchange tubes (31) and the second serpentine heat exchange tube (32). Two liquid outlet pipes (35) are buried in the upper middle part of the U-shaped heat-conducting frame (2) and are respectively connected to the outlets of the first and second serpentine heat exchange tubes (31) and the second serpentine heat exchange tube (32). The liquid outlet pipes (35) and the heat-insulating liquid inlet pipes (3) both extend from the left wall of the U-shaped heat-conducting frame (2) and are externally connected to the cooling circulation mechanism.

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