Efficient heat dissipation system for new energy automobile battery module

Abstract

The invention relates to the field of battery module heat dissipation equipment, in particular to an efficient heat dissipation system for a new energy automobile battery module, which comprises an inner shell, a first temperature sensor is arranged on the inner wall of the inner shell and is used for detecting the temperature of the cavity, and a water cooling plate is fixedly connected to the bottom end of the inner shell; the side wall of the water cooling plate fixedly communicates with a water inlet pipe and a water outlet pipe. The end of the water outlet pipe and the end of the water inlet pipe are connected with an external water pump. The temperature of each single battery is detected through the first temperature sensors, and if the temperature detected by one or more first temperature sensors exceeds the temperature value detected by the second temperature sensor, the rotation driving assemblies at the corresponding positions are started through the control module, so that the fan blades at the corresponding positions rotate; air circulation at the single batteries at the corresponding positions is accelerated, so that single heat dissipation of the single batteries with abnormal temperature is realized, and the temperatures of the multiple single batteries are kept consistent.

Description

Technical Field

[0001] The present invention relates to the field of battery module heat dissipation devices, and particularly to an efficient heat dissipation system for new energy vehicle battery modules. Background Art

[0002] The heat dissipation of new energy battery modules refers to adopting specific methods and technologies to dissipate the heat generated by new energy vehicle battery modules during operation, so as to ensure that the battery modules operate within an appropriate temperature range, guarantee their safety, stability and performance, and extend their service life. Commonly used is the liquid cooling method, whose working principle is to efficiently remove the battery heat through the circulating flow of the coolant pipeline in the battery pack.

[0003] For example, the invention patent with the publication number CN117977060B discloses an efficient heat dissipation device for new energy vehicle batteries, which relates to the technical field of new energy battery heat dissipation. The present invention includes a battery pack placed in a battery box; a ventilation and heat dissipation part, the ventilation and heat dissipation part includes a plurality of ventilation and heat dissipation holes opened on the shell of the battery box; a liquid cooling and heat dissipation part, the liquid cooling and heat dissipation part includes two wavy liquid cooling pipes fixedly installed in the battery box; an air cooling and heat dissipation part, the air cooling and heat dissipation part includes a sealing ring fixedly installed between the partition plate and the battery box.

[0004] The above case has the following defects: Since the battery pack is composed of multiple single cells, after the battery pack is used for a long time, the aging speeds of different single cells in the battery pack are likely to vary (such as differences in cycle times and charge-discharge depths), resulting in differences in internal resistance and voltage between different single cells, which easily leads to differences in the heat generation of multiple single cells and increases the difficulty of battery module heat dissipation.

[0005] Therefore, the present invention proposes an efficient heat dissipation system for new energy vehicle battery modules to solve the above problems. Summary of the Invention

[0006] To achieve the above object, the technical solution adopted by the present invention is: An efficient heat dissipation system for new energy vehicle battery modules, comprising:

[0007] An inner shell, a chamber is provided inside the inner shell, and a first temperature sensor is provided on the inner wall for detecting the temperature of the chamber. The bottom end of the inner shell is fixedly connected with a water-cooling plate, and a water inlet pipe and a water outlet pipe are fixedly communicated with the side wall of the water-cooling plate. The end parts of the water outlet pipe and the water inlet pipe are connected with an external water pump;

[0008] Several single cells, the several single cells are arranged in a rectangular array on the water-cooling plate, and a second temperature sensor is arranged on the surface of each single cell for detecting the temperature of the single cell at the corresponding position;

[0009] Several fan blades, and several of the fan blades are rotatably connected in the diversion grooves on the side wall of the inner shell corresponding to the position array of the single cells;

[0010] Multiple rotation drive components, and the rotation drive components are used to drive the fan blades at corresponding positions to rotate;

[0011] A control module, and the control module starts the rotation drive components at corresponding positions based on the first temperature sensor and the second temperature sensor to perform directional air cooling on the single cells.

[0012] Specifically, in the prior art, since a battery pack is composed of multiple single cells, after the battery pack is used for a long time, the aging speeds of different single cells in the battery pack are likely to vary, such as the number of cycles and the depth of charge and discharge, resulting in differences in the internal resistance and voltage between different single cells. As a result, the heat generation amounts of multiple single cells are likely to be different, increasing the difficulty of heat dissipation for the battery module. This technical solution can solve the above problems, and the specific operations are as follows:

[0013] During the operation of the battery module, start the external water pump so that the cooling water enters the water-cooled plate through the water inlet pipe, and the water-cooled plate cools down multiple single cells. At the same time, check the single cells at corresponding positions through multiple temperature sensors;

[0014] If the temperature value detected by the first temperature sensor does not exceed the specified temperature threshold, for example, 50 degrees, detect the temperatures of each single cell through the second temperature sensor. If the temperature detected by one or more of the second temperature sensors exceeds the temperature value detected by the first temperature sensor, start the rotation drive components at corresponding positions through the control module, so that the fan blades at corresponding positions rotate, accelerating the air circulation at the positions of the corresponding single cells and improving the heat dissipation speed of the single cells;

[0015] If the temperature value detected by the first temperature sensor exceeds the specified temperature threshold, start all the rotation drive components in the inner shell through the control module, so that several fan blades in the inner shell rotate, promoting the air flow in the inner shell and improving the heat dissipation speed of the single cells.

[0016] Preferably, the rotation drive component includes:

[0017] A housing, which is fixed on the side wall of the inner shell and internally rotatably connects a transmission impeller through a sealed bearing;

[0018] Two connecting pipes, and the two connecting pipes are respectively connected to both sides of the housing and the water inlet pipe;

[0019] A first control valve, which is arranged in each connecting pipe;

[0020] A second control valve, which is arranged in the water inlet pipe and located between the two connecting pipes;

[0021] A transmission component, which connects the transmission impeller and the fan blade;

[0022] Based on the first temperature sensor and the second temperature sensor, the control module opens two first control valves at corresponding positions and closes the second control valve, so that the cooling water enters the shell to drive the transmission impeller to rotate.

[0023] Preferably, the transmission component includes:

[0024] A first bevel gear, which is coaxially fixed with the impeller;

[0025] A second bevel gear, which is coaxially fixed with the fan blade and meshes with the first bevel gear.

[0026] Preferably, both the first control valve and the second control valve are ball valves, namely a first ball valve and a second ball valve respectively. The first ball valve is rotatably connected in the communicating pipe, and the second ball valve is rotatably connected in the water inlet pipe;

[0027] The first ball valve and the second ball valve are synchronously opened and closed through a linkage control component.

[0028] Preferably, the linkage control component includes:

[0029] A driving motor, which is fixed on the outer wall of the water inlet pipe, and its output shaft is connected to the second ball valve shaft;

[0030] A synchronous pulley mechanism, which connects the second ball valve shaft and two first ball valve shafts to achieve synchronous rotation.

[0031] Preferably, the synchronous pulley mechanism includes:

[0032] Two first pulleys, which are respectively fixedly connected to the surfaces of two first ball valve shafts;

[0033] Two second pulleys, which are fixedly connected to the surface of the shaft of the second ball valve;

[0034] A synchronous belt is drivingly connected between the first pulley and the second pulley.

[0035] Preferably, it further includes:

[0036] A housing, which wraps the inner shell and is fixed by bolts;

[0037] A cover plate, which is fixedly sealed on the top of the housing by bolts;

[0038] A plurality of heat dissipation plates, each heat dissipation plate corresponding to a single cell, its bottom surface contacting the top of the single cell, and the top end of each heat dissipation plate being elastically connected to the bottom of the cover plate through a corrugated pipe;

[0039] A heat dissipation fin, the heat dissipation fin is vertically arranged on the top of the heat dissipation plate, and its height is flush with the diversion groove.

[0040] Preferably, a serpentine pipeline is arranged inside the water cooling plate, and its water inlet and water outlet are respectively connected to a water inlet pipe and a water outlet pipe.

[0041] Preferably, the serpentine pipeline, the water inlet pipe and the water outlet pipe have the same inner diameter.

[0042] Preferably, it further includes:

[0043] A flow sensor, the flow sensor is arranged at the end of the water outlet pipe for detecting the flow rate of the cold water, and the control module adjusts the rotation speed of the water pump based on the flow information detected by the flow sensor.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] First, by setting the first temperature sensor, the second temperature sensor, the fan blades and the control module, the temperature of each single battery is detected by the first temperature sensor. When the temperature detected by one or more of the first temperature sensors exceeds the temperature value detected by the second temperature sensor, the rotation drive assembly at the corresponding position is started through the control module, so that the fan blades at the corresponding position rotate, accelerating the air circulation at the single battery at the corresponding position, and realizing the separate heat dissipation of the single battery with abnormal temperature, which is beneficial to keeping the temperatures of multiple single batteries consistent.

[0046] Second, by setting the heat dissipation plate and the heat dissipation fin, the contact area between the heat dissipation surface of the single battery and the air is increased, further improving the heat dissipation effect on the single battery, and by setting the corrugated pipe, during the process of covering the top of the outer shell with the cover plate, it is ensured that the heat dissipation plate is in full contact with the single battery.

[0047] Third, the flow rate of the cooling water is detected by the flow sensor. When the flow rate is lower than the threshold value, the rotation speed of the water pump is adjusted through the control module, which is beneficial to avoiding the problem of abnormal fluctuation of the cooling water flow rate and ensuring uniform heat dissipation in each area of the water cooling plate. Description of the Drawings

[0048] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 It is a schematic diagram of the connection between the inner shell and the outer shell of the present invention;

[0050] Figure 3 It is a schematic diagram of the connection between the water inlet pipe and the shell of the present invention;

[0051] Figure 4 It is a schematic diagram of the connection between the water cooling plate and the water inlet pipe of the present invention;

[0052] Figure 5 Schematic diagram of the connection between the first conical rack and the second conical gear in the present invention;

[0053] Figure 6 Schematic diagram of the connection between the first ball valve and the second ball valve in the present invention;

[0054] Figure 7 Schematic diagram of the connection between the cover plate and the corrugated pipe in the present invention.

[0055] In the figure: inner shell 1, diversion groove 2, fan blade 3, first temperature sensor 4, water-cooled plate 5, serpentine pipeline 501, water inlet pipe 6, water outlet pipe 7, single cell 8, second temperature sensor 9, housing 10, transmission impeller 11, connecting pipe 12, first conical gear 13, second conical gear 14, first ball valve 15, second ball valve 16, flow sensor 17, drive motor 18, first belt pulley 19, second belt pulley 20, synchronous belt 21, outer shell 22, cover plate 23, heat dissipation plate 24, corrugated pipe 25, heat dissipation fin 26. Detailed implementation manners

[0056] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0057] As Figures 1 to 7 shown, a high-efficiency heat dissipation system for a new energy vehicle battery module includes:

[0058] Inner shell 1, a chamber is arranged inside the inner shell 1, and a first temperature sensor 4 is arranged on the inner wall for detecting the temperature of the chamber. The bottom end of the inner shell 1 is fixedly connected with a water-cooled plate 5. The side wall of the water-cooled plate 5 is fixedly communicated with a water inlet pipe 6 and a water outlet pipe 7, and the end parts of the water outlet pipe 7 and the water inlet pipe 6 are connected with an external water pump;

[0059] A plurality of single cells 8, the plurality of single cells 8 are arranged in a rectangular array on the water-cooled plate 5, and a second temperature sensor 9 is arranged on the surface of each single cell 8 for detecting the temperature of the single cell 8 at the corresponding position;

[0060] A plurality of fan blades 3, the plurality of fan blades 3 are rotationally connected in the diversion grooves 2 on the side wall of the inner shell 1 corresponding to the positions of the single cells 8 in an array;

[0061] A plurality of rotation driving components, and the rotation driving components are used to drive the fan blades 3 at the corresponding positions to rotate;

[0062] A control module, and the control module starts the rotation driving components at the corresponding positions based on the first temperature sensor 4 and the second temperature sensor 9 to perform directional air-cooling heat dissipation on the single cells 8;

[0063] Specifically, in the prior art, since a battery pack is composed of multiple single cells, after long-term use of the battery pack, the aging speeds of different single cells in the battery pack are likely to vary, such as differences in the number of cycles and charge-discharge depth, resulting in differences in the internal resistance and voltage between different single cells. As a result, the heat generation amounts of multiple single cells are likely to be different, increasing the difficulty of heat dissipation for the battery module. This technical solution can solve the above problems, and the specific operations are as follows:

[0064] During the operation of the battery module, start the peripheral water pump so that the cooling water enters the water-cooling plate 5 through the water inlet pipe 6, and the water-cooling plate 5 is used to cool multiple single cells 8 by water cooling. At the same time, multiple temperature sensors are used to check the single cells 8 at corresponding positions respectively;

[0065] When the temperature value detected by the first temperature sensor 4 does not exceed the specified temperature threshold, such as 50 degrees, the second temperature sensors 9 are used to detect the temperatures of each single cell 8. If the temperature detected by one or more of the second temperature sensors 9 exceeds the temperature value detected by the first temperature sensor 4, the control module starts the rotary drive components at the corresponding positions, so that the fan blades 3 at the corresponding positions rotate, accelerating the air circulation at the positions of the single cells 8 at the corresponding positions and improving the heat dissipation speed of the single cells 8;

[0066] When the temperature value detected by the first temperature sensor 4 exceeds the specified temperature threshold, the control module starts all the rotary drive components in the inner shell 1, so that several fan blades 3 in the inner shell 1 rotate, promoting the air flow in the inner shell 1 and improving the heat dissipation speed of the single cells 8.

[0067] As a further embodiment of the present invention, the rotary drive component includes:

[0068] A housing 10, the housing 10 is fixed to the side wall of the inner shell 1, and a transmission impeller 11 is rotatably connected inside through a sealed bearing;

[0069] Two connecting pipes 12, the two connecting pipes 12 are respectively connected to both sides of the housing 10 and the water inlet pipe 6;

[0070] A first control valve, provided in each connecting pipe 12;

[0071] A second control valve, provided in the water inlet pipe 6 and located between the two connecting pipes 12;

[0072] A transmission component, the transmission component connects the transmission impeller 11 and the fan blade 3;

[0073] The control module opens the two first control valves at the corresponding positions and closes the second control valve based on the first temperature sensor 4 and the second temperature sensors 9, so that the cooling water enters the housing 10 to drive the transmission impeller 11 to rotate;

[0074] The transmission component includes:

[0075] A first bevel gear 13, the first bevel gear 13 is coaxially fixed with the impeller;

[0076] A second bevel gear 14, which is coaxially fixed with the fan blade 3 and meshes with the first bevel gear 13;

[0077] Specifically, if the temperature value detected by the first temperature sensor 4 does not exceed the specified temperature threshold, such as 50 degrees, the temperature of each single battery 8 is detected by the first temperature sensor 4. If the temperature detected by one or more of the first temperature sensors 4 exceeds the temperature value detected by the second temperature sensor 9, the two first control valves at the corresponding positions are opened and the second control valve is closed through the control module, so that cooling water enters the housing 10 to drive the transmission impeller 11 to rotate, so that the first bevel gear 13 rotates, thereby rotating the second bevel gear 14, and the fan blades 3 at the corresponding position rotate, thereby accelerating the circulation of air at the single battery 8 at the corresponding position, and improving the heat dissipation speed of the single battery 8;

[0078] If the temperature value detected by the second temperature sensor 9 exceeds the specified temperature threshold, the control module closes all the second control valves and opens all the first control valves. Under the above principle, several fan blades 3 in the inner shell 1 rotate to promote air flow in the inner shell 1 and increase the heat dissipation speed of the single battery 8.

[0079] As a further embodiment of the present invention, the first control valve and the second control valve are both ball valves, namely the first ball valve 15 and the second ball valve 16, the first ball valve 15 is rotatably connected in the connecting pipe 12, the second ball valve 16 is rotatably connected in the water inlet pipe 6, and the second ball valve 16 is located between the two first ball valves 15;

[0080] The first ball valve 15 and the second ball valve 16 are opened and closed synchronously through a linkage control component;

[0081] The linkage control components include:

[0082] A driving motor 18, the driving motor 18 is fixed to the outer wall of the water inlet pipe 6, and its output shaft is connected to the shaft of the second ball valve 16;

[0083] A synchronous pulley mechanism connects the shaft of the second ball valve 16 with the shafts of the two first ball valves 15 to achieve synchronous rotation;

[0084] The synchronous pulley mechanism includes: two first pulleys 19, and the two first pulleys 19 are respectively fixedly connected to the shaft surfaces of the two first ball valves 15;

[0085] Two second pulleys 20, the two second pulleys 20 are fixedly connected to the shaft surface of the second ball valve 16; a synchronous belt 21 is transmission-connected between the first pulley 19 and the second pulley 20;

[0086] Specifically, by setting the drive motor 18 and the timing belt 21, when it is necessary to start the fan blade 3 at the corresponding position, the drive motor 18 at the corresponding position is started, so that the output shaft of the drive motor 18 rotates, causing the second ball valve 16 to rotate by ninety degrees to complete the closing of the second ball valve 16. During the rotation of the output shaft of the drive motor 18, under the transmission of the timing belt 21, the two first ball valves 15 rotate by ninety degrees, allowing cooling water to enter the housing 10 to drive the transmission impeller 11 to rotate. Under the transmission of the transmission assembly, the fan blade 3 rotates, thereby promoting the air flow inside the inner housing 1 and increasing the heat dissipation speed of the single cell 8.

[0087] As a further embodiment of the present invention, it further includes:

[0088] An outer shell 22, which wraps the inner housing 1 and is fixed by bolts;

[0089] A cover plate 23, which is fixed and sealed on the top of the outer shell 22 by bolts;

[0090] A plurality of heat dissipation plates 24, each heat dissipation plate 24 corresponding to a single cell 8, with its bottom surface in contact with the top of the single cell 8, and the top end of each heat dissipation plate 24 is elastically connected to the bottom of the cover plate 23 through a corrugated pipe 25;

[0091] Heat dissipation fins 26, which are vertically arranged on the top of the heat dissipation plate 24 and have the same height as the diversion groove 2;

[0092] Specifically, by setting the heat dissipation plate 24 and the heat dissipation fins, the contact area between the heat dissipation surface of the single cell 8 and the air is increased, further improving the heat dissipation effect on the single cell 8. And by setting the corrugated pipe 25, during the process of the cover plate 23 covering the top of the outer shell 22, it is ensured that the heat dissipation plate 24 is in full contact with the single cell 8.

[0093] As a further embodiment of the present invention, a serpentine pipeline 501 is provided inside the water-cooled plate 5, and its water inlet and outlet are respectively connected to the water inlet pipe 6 and the water outlet pipe 7; the serpentine pipeline 501 covers the entire area of the water-cooled plate 5 to ensure that the cooling water evenly flows through the bottom area of each single cell 8, avoiding the problem of insufficient cooling at the edge of the water-cooled plate 5.

[0094] The serpentine pipeline 501, the water inlet pipe 6 and the water outlet pipe 7 have the same inner diameter; this is beneficial to keeping the flow rate of the cooling water consistent in the pipeline, the water inlet pipe 6 and the water outlet pipe 7, avoiding too high or too low local flow rates, and ensuring uniform heat dissipation in each area of the water-cooled plate 5.

[0095] It further includes:

[0096] A flow sensor 17, which is arranged at the end of the water outlet pipe 7 and is used to detect the flow rate of the cold water. The control module adjusts the pump speed based on the flow information detected by the flow sensor 17;

[0097] Specifically, when the cooling water drives the drive impeller 11 to rotate, due to the resistance of the impeller, it is easy to cause fluctuations in the flow rate of the cooling water and even reduce the circulation speed of the cooling water in the water-cooling plate 5. The flow rate of the cooling water is detected by the flow sensor 17. When the flow rate is lower than the threshold value, the pump speed is adjusted by the control module, which helps to avoid the problem of abnormal fluctuations in the flow rate of the cooling water and ensure uniform heat dissipation in each area of the water-cooling plate 5.

[0098] Working principle of the present invention: During the operation of the battery module, an external water pump is started, so that the cooling water enters the water-cooling plate 5 through the water inlet pipe 6. The water-cooling plate 5 is used to cool multiple single cells 8 by water cooling. At the same time, multiple temperature sensors are used to check the single cells 8 at corresponding positions respectively;

[0099] If the temperature value detected by the first temperature sensor 4 does not exceed the specified temperature threshold, for example, 50 degrees, the temperatures of the individual cells 8 are detected by the second temperature sensors 9. If the temperature detected by one or more of the second temperature sensors 9 exceeds the temperature value detected by the first temperature sensor 4, the rotation drive components at the corresponding positions are started by the control module, so that the fan blades 3 at the corresponding positions rotate, accelerating the air circulation at the positions of the individual cells 8 and increasing the heat dissipation speed of the individual cells 8;

[0100] If the temperature value detected by the first temperature sensor 4 exceeds the specified temperature threshold, all the rotation drive components in the inner shell 1 are started by the control module, so that several fan blades 3 in the inner shell 1 rotate, promoting the air flow in the inner shell 1 and increasing the heat dissipation speed of the individual cells 8.

[0101] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. An efficient heat dissipation system for a new energy vehicle battery module, characterized in that, Comprising: An inner shell (1), a chamber is provided inside the inner shell (1), and a first temperature sensor (4) is provided on the inner wall for detecting the chamber temperature. The bottom end of the inner shell (1) is fixedly connected with a water-cooling plate (5). A water inlet pipe (6) and a water outlet pipe (7) are fixedly communicated with the side wall of the water-cooling plate (5). The end parts of the water outlet pipe (7) and the water inlet pipe (6) are connected to an external water pump. Several single cells (8), the several single cells (8) are distributed in a rectangular array on the water-cooling plate (5), and a second temperature sensor (9) is arranged on the surface of each single cell (8) for detecting the temperature of the single cell (8) at the corresponding position. Several fan blades (3), the several fan blades (3) are rotatably connected in the flow guide grooves (2) on the side wall of the inner shell (1) corresponding to the positions of the single cells (8) in an array. Multiple rotation driving components, the rotation driving components are used for driving the fan blades (3) at the corresponding positions to rotate. A control module, the control module starts the rotation driving components at the corresponding positions based on the first temperature sensor (4) and the second temperature sensor (9) to perform directional air-cooling heat dissipation on the single cells (8).

2. The high-efficiency heat dissipation system for a new energy vehicle battery module according to claim 1, wherein, The rotation driving component includes: A housing (10), the housing (10) is fixed on the side wall of the inner shell (1), and a transmission impeller (11) is rotatably connected inside through a sealed bearing. Two connecting pipes (12), the two connecting pipes (12) are respectively connected to both sides of the housing (10) and the water inlet pipe (6). A first control valve, arranged in each connecting pipe (12). A second control valve, arranged in the water inlet pipe (6) and located between the two connecting pipes (12). A transmission component, the transmission component connects the transmission impeller (11) and the fan blade (3). The control module opens the two first control valves at the corresponding positions and closes the second control valve based on the first temperature sensor (4) and the second temperature sensor (9), so that the cooling water enters the housing (10) to drive the transmission impeller (11) to rotate.

3. The efficient heat dissipation system for a new energy vehicle battery module according to claim 2, characterized in that, The transmission component includes: A first bevel gear (13), the first bevel gear (13) is coaxially fixed with the impeller. A second bevel gear (14), the second bevel gear (14) is coaxially fixed with the fan blade (3), and the second bevel gear (14) meshes with the first bevel gear (13).

4. An efficient heat dissipation system for a new energy vehicle battery module according to claim 2, characterized in that, The first control valve and the second control valve are both ball valves, which are respectively a first ball valve (15) and a second ball valve (16). The first ball valve (15) is rotatably connected in the connecting pipe (12), and the second ball valve (16) is rotatably connected in the water inlet pipe (6). The first ball valve (15) and the second ball valve (16) are synchronously opened and closed through a linkage control component.

5. An efficient heat dissipation system for a new energy vehicle battery module according to claim 4, characterized in that, The linkage control component includes: A driving motor (18), the driving motor (18) is fixed on the outer wall of the water inlet pipe (6), and its output shaft is connected to the shaft of the second ball valve (16). A synchronous belt wheel mechanism, connecting the shaft of the second ball valve (16) and the shafts of the two first ball valves (15) to achieve synchronous rotation.

6. The high-efficiency heat dissipation system for a new energy vehicle battery module according to claim 5, characterized in that The synchronous belt wheel mechanism includes: Two first belt wheels (19), the two first belt wheels (19) are respectively fixedly connected to the surfaces of the shafts of the two first ball valves (15). Two second pulleys (20), and the two second pulleys (20) are fixedly connected to the shaft surface of the second ball valve (16); A synchronous belt (21) is drivingly connected between the first pulley (19) and the second pulley (20).

7. An efficient heat dissipation system for a new energy vehicle battery module according to claim 1, characterized in that, It further includes: A housing (22), and the housing (22) wraps the inner shell (1) and is fixed by bolts; A cover plate (23), and the cover plate (23) is fixedly sealed on the top of the housing (22) by bolts; A plurality of heat dissipation plates (24), each heat dissipation plate (24) corresponds to a single cell (8), its bottom surface contacts the top of the single cell (8), and the top end of each heat dissipation plate (24) is elastically connected to the bottom of the cover plate (23) through a corrugated pipe (25); Heat dissipation fins (26), and the heat dissipation fins are vertically arranged on the top of the heat dissipation plate (24), and the height is flush with the flow guiding groove (2).

8. An efficient heat dissipation system for a new energy vehicle battery module according to claim 1, characterized in that, A serpentine pipeline (501) is arranged inside the water cooling plate (5), and its water inlet and water outlet are respectively connected to a water inlet pipe (6) and a water outlet pipe (7).

9. The high-efficiency heat dissipation system for a new energy vehicle battery module according to claim 8, characterized in that, The serpentine pipeline (501), the water inlet pipe (6) and the water outlet pipe (7) have the same inner diameter.

10. The efficient heat dissipation system for a new energy vehicle battery module according to claim 9, characterized in that, It further includes: A flow sensor (17), and the flow sensor (17) is arranged at the end of the water outlet pipe (7) for detecting the flow rate of the cold water, and the control module adjusts the rotation speed of the water pump based on the flow information detected by the flow sensor (17).

Images