Battery heat dissipation method, battery heat dissipation device and battery pack

Abstract

The invention relates to the technical field of battery heat dissipation devices, and discloses a battery heat dissipation method, a battery heat dissipation device and a battery pack, the battery heat dissipation device comprises a shell, a sealing cover is arranged on the inner wall of the shell, and a water cooling plate is fixedly assembled at the top of the sealing cover. By means of the shell, the sealing cover, the water cooling plate and the fan structure, in the operation process of the device, when the temperature of the body rises rapidly due to rapid rising, air pressure can be increased through the internal temperature, a piston is pushed to move, a second reset spring is compressed, and the space where one body is located is communicated with the space where the other body is located; meanwhile, a water cooling plate is controlled to operate through a controller, energy loss caused by continuous operation of water cooling in the normal operation state of the body is prevented from being increased, a movable plate is pushed to conduct bump detection operation on the body in cooperation with movement of a piston, and then the operation temperature of the body is accurately monitored, and the bump condition of the body is detected; therefore, a user can maintain the device and the body in time.

Description

Technical Field

[0001] The present invention relates to the technical field of battery heat dissipation devices, and in particular to a battery heat dissipation method, a battery heat dissipation device and a battery pack. Background Art

[0002] A battery is a cup, trough or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy. Batteries can be assembled into battery packs using fixed containers to increase the power supply. The containers can also be used to efficiently dissipate heat from the batteries.

[0003] Although the existing heat dissipation device can dissipate heat for the battery during use, it does not have a mechanism for accurately monitoring the battery operating status (temperature). As a result, both air cooling and water cooling are in operation from the beginning to the end of battery operation, and cannot be started and stopped intelligently, which reduces the intelligence and practicality of the existing device. At the same time, it is also impossible to detect the battery bulging status. When the battery bulges, it is easy to cause the battery to explode, which reduces the safety of the existing heat dissipation device. For this reason, we propose a battery heat dissipation method, a battery heat dissipation device and a battery pack. Summary of the invention

[0004] The present invention provides a battery heat dissipation method, a battery heat dissipation device and a battery pack, which have the advantages of high intelligence, strong practicality, compact structure and high safety, and solve the problems raised by the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a battery heat dissipation device, comprising a shell, the inner wall of the shell is provided with a sealing cover, the top of the sealing cover is fixedly equipped with a water cooling plate, the water outlet of the water cooling plate is fixedly equipped with a water guide pipe, the top of the sealing cover is tightly fitted with bolts, the outer wall of the shell is fixedly equipped with a controller, the inner wall of the shell is provided with a partition, the outer wall of the partition is provided with a mounting hole, the inner wall of the mounting hole is sleeved with a second sleeve, the inner wall of the second sleeve is fixedly equipped with a round rod, the outer wall of the round rod is sleeved with a second return spring, the outer wall of the second return spring abuts against a moving ring, the outer wall of the moving ring is fixedly equipped with a fixing rod, the end of the fixing rod is fixedly equipped with a piston, the outer wall of the piston is fixedly equipped with a second pressure sensor, the outer wall of the second sleeve is fixedly sleeved with a limiting ring, the outer wall of the second sleeve is threadedly connected with a threaded ring, the sealing cover The bottom is fixedly equipped with a baffle, the top of the shell is provided with a docking groove, the top of the sealing cover is provided with a circular hole, the inner wall of the circular hole is provided with a fan, the end of the water pipe is connected to a cold head, and the bottom of the sealing cover is respectively provided with a slide groove 1 and a slide groove 2, the inner wall of the slide groove 1 is fixedly equipped with a cross bar, the outer wall of the cross bar is sleeved with a return spring 1, the inner wall of the slide groove 1 is slidably connected with a limiting block, the bottom of the limiting block is fixedly equipped with a sleeve 1, the top of the inner wall of the sleeve 1 is provided with a tension spring, the bottom end of the tension spring is provided with a limiting ring, the top of the limiting ring is fixedly equipped with a strong magnet, the top of the inner wall of the sleeve 1 is also fixedly equipped with an electromagnet, the bottom of the limiting ring is fixedly equipped with a moving plate, the outer wall of the moving plate is fixedly equipped with a pressure sensor 1, the bottom of the moving plate is provided with a square groove, and the outer wall of the moving plate is fixedly equipped with a limiting plate.

[0006] As a preferred technical solution of the present invention: the outer wall of the limit plate is slidably connected to the inner wall of the shell, and the inner wall of the square groove is slidably connected to the outer wall of the cold head, the position of the pressure sensor 2 corresponds to the position of the pressure sensor 1, and both the pressure sensor 2 and the pressure sensor 1 are electrically connected to the controller.

[0007] As a preferred technical solution of the present invention: the number of the water pipes is three, two of the water pipes are connected to the water inlet of the cold head, and the water outlet of the cold head is connected to the water inlet of the water cooling plate through another water pipe.

[0008] As a preferred technical solution of the present invention: the number of the fans is eight, the eight fans are divided into two groups, and the two groups of fans are respectively arranged at two ends of the shell.

[0009] As a preferred technical solution of the present invention: after the electromagnet is energized, the electromagnet repels the strong magnet with the same polarity, and the outer wall of the limit ring is slidably connected to the inner wall of the sleeve.

[0010] As a preferred technical solution of the present invention: the inner wall of the mounting hole is slidably connected to the outer wall of sleeve 2, the outer walls of the limiting ring and the threaded ring are tightly fitted to the two sides of the partition respectively, and sleeve 2 is fixedly connected to the partition through the limiting ring and the threaded ring.

[0011] As a preferred technical solution of the present invention: the outer wall of the limit plate is slidably connected to the inner wall of the second slide groove, the number of the limit plates is four, and the four limit plates are evenly distributed with the center point of the shell as the axis.

[0012] A battery pack comprises a body, the top of which is slidably connected to the bottoms of a moving plate and a limiting plate respectively, and the top of the body is tightly fitted to the outer wall of a second sleeve.

[0013] A battery heat dissipation method comprises the following steps:

[0014] S1: When the main body inside the battery device is supplying power, the main body will generate electricity due to the reaction of internal chemical components. The change in voltage and the progress of the chemical reaction will cause heat to be generated inside the main body, causing the main body to heat up rapidly. When the temperature is transferred, the temperature in the space where the main body is located will increase. At this time, the fan is operating to introduce cold air into the shell, and the fan at the lower end is used to exhaust the hot air. When the temperature cannot be reduced to the temperature range of normal operation of the main body, the increase in temperature will cause the air pressure in the space where the main body is located to expand due to thermal expansion and contraction, thereby causing the piston to slide along the inner wall of the second sleeve, so that the second pressure sensor fits with the first pressure sensor, and the space where the temperature-increasing main body is located is connected to the space where another main body is located, so that the heat is transferred to the next main body, avoiding the risk of explosion caused by rapid temperature increase. In the process of the movement of the piston, the movable plate will be pushed to move to perform a bulging detection operation on the main body, avoiding the bulging of the main body during the operation, thereby facilitating the user to timely maintain the heat dissipation device and the main body, thereby improving the safety of the device during operation;

[0015] S2: After the bulging detection operation, since the fit of pressure sensor 1 and pressure sensor 2 proves that the temperature of the space where a certain body is located rises rapidly, the controller will control the water cooling plate to operate, so that the fan and cooling water operate synchronously to cool down the body with increased temperature and the body receiving heat respectively, to ensure that both bodies can operate normally without explosion. The other two bodies are cooled in the same way, so as to achieve the effect of accurately monitoring the body temperature and dissipating heat, thereby improving the intelligence and automation of the device and the temperature control effect of the body;

[0016] S3: When installing the device and the main body, the user can directly place the main body in the shell, and then directly insert the sleeve 2 into the mounting hole, use the limit ring to limit the sleeve 2, and the threaded ring fixes the sleeve 2 to the partition in a threaded connection manner. At this time, the sleeve 2 can not only monitor the temperature of the working area of ​​the main body, but also fix the main body, and has the characteristics of compact structure and strong practicality.

[0017] The present invention has the following beneficial effects:

[0018] 1. The battery heat dissipation method, battery heat dissipation device and battery pack, through the shell, sealing cover, water cooling plate, fan, water conduit, cold head, pressure sensor 1 and pressure sensor 2 structures, when the device is in operation, when the body heats up quickly due to rapid temperature increase, the internal temperature will increase the air pressure and push the piston to move, so that the return spring 2 is compressed to make the space where one body is located communicate with the space where the other body is located, and the hot air is discharged in time to avoid explosion caused by excessive temperature increase, and control the air pressure. At the same time, the water cooling plate is controlled by the controller to operate the water pump inside the cold head to circulate the cooling water, so as to avoid the water cooling continuing to operate when the body is in normal operation and increase energy loss. The movement of the piston will push the moving plate to perform bulging detection on the body, thereby realizing accurate monitoring of the operating temperature of the body and detecting the bulging condition of the body, so that the user can maintain the device and the body in time.

[0019] 2. The battery heat dissipation method, battery heat dissipation device and battery pack use the above method to dissipate heat and install the main body, which is convenient for users to assemble the device and the main body. After the assembly is completed, the main body can be detected directly through the change in temperature, so that the internal components of the device have the characteristics of compact structure, convenient installation and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a side view structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the side section structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the chute 1 and the chute 2 of the present invention;

[0024] Figure 5 This is a schematic diagram of the water pipe structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the mounting hole structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the local cross-sectional structure of the present invention.

[0027] In the figure: 1. shell; 2. sealing cover; 3. water cooling plate; 4. fan; 5. water guide pipe; 6. bolt; 7. controller; 8. body; 9. cold head; 10. limit plate; 11. moving plate; 12. sleeve one; 13. limit block; 14. cross bar; 15. reset spring one; 16. sleeve two; 17. square groove; 18. slide groove one; 19. slide groove two; 20. round hole; 21. pressure sensor one; 22. tension spring; 23. electromagnet; 24. strong magnet; 25. limit ring; 26. baffle; 27. mounting hole; 28. docking groove; 29. ​​piston; 30. pressure sensor two; 31. reset spring two; 32. round rod; 33. limit ring; 34. fixed rod; 35. threaded ring; 36. moving ring; 37. partition. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 7A battery heat dissipation device comprises a shell 1, a sealing cover 2 is provided on the inner wall of the shell 1, a water cooling plate 3 is fixedly mounted on the top of the sealing cover 2, a water outlet of the water cooling plate 3 is fixedly mounted with a water guide pipe 5, a bolt 6 is tightly fitted on the top of the sealing cover 2, a controller 7 is fixedly mounted on the outer wall of the shell 1, a partition 37 is provided on the inner wall of the shell 1, a mounting hole 27 is opened on the outer wall of the partition 37, a sleeve 16 is sleeved on the inner wall of the mounting hole 27, a round rod 32 is fixedly mounted on the inner wall of the sleeve 16, a return spring 31 is sleeved on the outer wall of the round rod 32, a moving ring 36 is abutted on the outer wall of the return spring 31, a fixing rod 34 is fixedly mounted on the outer wall of the moving ring 36, a piston 29 is fixedly mounted on the end of the fixing rod 34, a pressure sensor 30 is fixedly mounted on the outer wall of the piston 29, a limiting ring 33 is fixedly sleeved on the outer wall of the sleeve 16, a threaded ring 35 is threadedly connected on the outer wall of the sleeve 16, and a baffle 26 is fixedly mounted on the bottom of the sealing cover 2 The top of the shell 1 is provided with a docking groove 28, the top of the sealing cover 2 is provided with a round hole 20, the inner wall of the round hole 20 is provided with a fan 4, the end of the water pipe 5 is connected with a cold head 9, and the bottom of the sealing cover 2 is provided with a slide groove 18 and a slide groove 2 19, respectively. The inner wall of the slide groove 18 is fixedly equipped with a cross bar 14, and the outer wall of the cross bar 14 is sleeved with a return spring 15. The inner wall of the slide groove 18 is slidably connected to the limit block 13, and the bottom of the limit block 13 is fixedly equipped with a sleeve 1 2. A tension spring 22 is provided at the top of the inner wall of the sleeve 12, a limit ring 25 is provided at the bottom end of the tension spring 22, a strong magnet 24 is fixedly mounted on the top of the limit ring 25, an electromagnet 23 is also fixedly mounted on the top of the inner wall of the sleeve 12, a moving plate 11 is fixedly mounted on the bottom of the limit ring 25, a pressure sensor 21 is fixedly mounted on the outer wall of the moving plate 11, a square groove 17 is provided at the bottom of the moving plate 11, and a limit plate 10 is fixedly mounted on the outer wall of the moving plate 11.

[0030] In the above structure, through the arrangement of the shell 1, sealing cover 2, water cooling plate 3, fan 4, water pipe 5, bolts 6, and controller 7, the heat dissipation device can move the movable plate 11 by temperature changes during use, thereby achieving timely discharge of heat to avoid explosion of the main body 8, and can also allow the movable plate 11 to move to detect bulging of the main body 8, thereby improving the monitoring accuracy of the device for the temperature of the main body 8, and at the same time can also ensure that the user can perform timely maintenance on the device and the main body 8, thereby improving the intelligence of the device.

[0031] In a preferred embodiment: the outer wall of the limit plate 10 is slidably connected to the inner wall of the shell 1, and the inner wall of the square groove 17 is slidably connected to the outer wall of the cold head 9, the position of the pressure sensor 2 30 corresponds to the position of the pressure sensor 1 21, and the pressure sensor 2 30 and the pressure sensor 1 21 are both electrically connected to the controller 7.

[0032] In the above structure, by setting the pressure sensor 2 30 and the pressure sensor 1 21 structure, when the air pressure changes and causes the piston 29 to move, the pressure sensor 2 30 will contact the pressure sensor 1 21, so that the controller 7 automatically controls the water pump operation inside the cold head 9 when the two are in contact, thereby ensuring that one or more heated bodies 8 can be cooled down due to the water cooling cycle operation, without the need for the water cooling mechanism to continue operating and increase energy loss, thereby improving the intelligence of the device and the energy consumption.

[0033] In a preferred embodiment, there are three water pipes 5 , two of which are connected to the water inlet of the cold head 9 , and the water outlet of the cold head 9 is connected to the water inlet of the water cooling plate 3 through another water pipe 5 .

[0034] In the above structure, by setting up three water pipes 5, the cold head 9 allows the cold water to fully absorb the heat generated by the main body 8 after receiving the cold water, thereby achieving the effect of water cooling. After absorbing the heat, the cooling water can also enter the water pipe 5 and flow back to the water cooling plate 3, thereby achieving the effect of cooling the cold water after absorbing the heat, thereby ensuring that the subsequent operation of the device will not be affected.

[0035] In a preferred embodiment, the number of fans 4 is eight, the eight fans 4 are divided into two groups, and the two groups of fans 4 are respectively arranged at two ends of the housing 1 .

[0036] In the above structure, by setting up eight fans 4, the device can cool the main body 8 through two groups of fans 4 during operation, thereby ensuring that hot air can circulate, and cold air can enter the shell 1 and contact the main body 8, thereby achieving the effect of air cooling to dissipate heat for the normally operating main body 8, thereby ensuring that the normal operation of the main body 8 will not be affected by temperature, and effectively ensuring the service life of the main body 8.

[0037] In a preferred embodiment, after the electromagnet 23 is energized, the electromagnet 23 and the strong magnet 24 repel each other with the same polarity, and the outer wall of the limiting ring 25 is slidably connected to the inner wall of the sleeve 12.

[0038] In the above structure, through the setting of the limit ring 25 and the sleeve 12 structure, when the electromagnet 23 is energized, the strong magnet 24 will pull the tension spring 22 to extend due to the repulsive force, so that the movable plate 11 contacts the top of the main body 8. When the main body 8 is operating normally, the electromagnet 23 will be powered off to make the movable plate 11 separate from the main body 8, so as to avoid the movable plate 11 causing pressure on the main body 8 during operation and affecting the reaction of the chemical substances inside the main body 8. On the contrary, when the temperature of the main body 8 rises, the movable plate 11 automatically adheres to the main body 8 to perform bulge detection operation, which further improves the intelligence and practicality of the device.

[0039] In a preferred embodiment: the inner wall of the mounting hole 27 is slidably connected to the outer wall of the sleeve 16, the outer walls of the limiting ring 33 and the threaded ring 35 are tightly fitted to the two sides of the partition 37 respectively, and the sleeve 16 is fixedly connected to the partition 37 through the limiting ring 33 and the threaded ring 35.

[0040] In the above structure, the inner wall of the mounting hole 27 is slidably connected to the outer wall of the sleeve 16, the outer walls of the limiting ring 33 and the threaded ring 35 are tightly fitted to the two sides of the partition 37 respectively, and the sleeve 16 is fixedly connected to the partition 37 through the limiting ring 33 and the threaded ring 35.

[0041] In a preferred embodiment, the outer wall of the limit plate 10 is slidably connected to the inner wall of the second slide groove 19 , the number of the limit plates 10 is four, and the four limit plates 10 are evenly distributed with the center point of the shell 1 as the axis.

[0042] In the above structure, by setting up four limit plates 10, the four limit plates 10 can be used to perform bulge detection on the main body 8, thereby ensuring the detection effect of the device on the main body 8. At the same time, the slide groove 19 can be used to limit the limit plate 10 when the limit plate 10 moves, thereby improving the stability of the limit plate 10 during the movement.

[0043] A battery pack includes a body 8, the top of the body 8 is slidably connected to the bottom of a moving plate 11 and a limiting plate 10 respectively, and the top of the body 8 is tightly fitted to the outer wall of a sleeve 16.

[0044] In the above structure, by setting up the main body 8 structure, the structure of the main body 8 can make the movable plate 11 slide along the top of the main body 8 when moving, and the limit plate 10 moves synchronously under the drive of the movable plate 11, so that the top of the main body 8 can be detected, thereby ensuring the detection effect of the device on the bulging condition of the main body 8.

[0045] A battery heat dissipation method comprises the following steps:

[0046] S1: When the main body 8 inside the battery device is supplying power, the main body 8 will generate electricity due to the reaction of the internal chemical components. The change in voltage and the progress of the chemical reaction will cause heat to be generated inside the main body 8, causing the main body 8 to heat up rapidly. When the temperature is transferred, the temperature in the space where the main body 8 is located will increase. At this time, the fan 4 is working to introduce cold air into the shell 1, and the fan 4 at the lower end is used to exhaust the hot air. When the temperature cannot be reduced to the temperature range of the normal operation of the main body 8, the increase in temperature will cause the air pressure in the space where the main body 8 is located to expand due to thermal expansion and contraction, thereby causing the piston 2 to 9 slides along the inner wall of the second sleeve 16, so that the second pressure sensor 30 fits with the first pressure sensor 21, and the space where the temperature of the main body 8 is increased is connected with the space where another main body 8 is located, so that the heat is transferred to the next main body 8, avoiding the risk of explosion caused by rapid temperature increase, and in the process of the movement of the piston 29, the movable plate 11 is pushed to move to perform a bulging detection operation on the main body 8, avoiding the bulging of the main body 8 during the operation, thereby facilitating the user to timely maintain the heat dissipation device and the main body 8, thereby improving the safety of the device during operation;

[0047] S2: After the bulging detection operation, since the fit of the pressure sensor 1 21 and the pressure sensor 2 30 proves that the temperature of the space where a certain body 8 is located rises rapidly, the controller 7 will control the water cooling plate 3 to operate, so that the fan 4 and the cooling water operate synchronously to cool down the body 8 with increased temperature and the body 8 receiving heat, respectively, to ensure that both bodies 8 can operate normally without explosion. The other two bodies 8 are cooled in the same way, so as to achieve the effect of accurately monitoring the temperature of the body 8 and dissipating heat, thereby improving the intelligence and automation of the device and the temperature control effect of the body 8;

[0048] S3: When installing the device and the main body 8, the user can directly place the main body 8 in the shell 1, and then directly insert the sleeve 16 into the mounting hole 27, use the limiting ring 33 to limit the sleeve 16, and the threaded ring 35 fixes the sleeve 16 and the partition 37 in a threaded connection manner. At this time, the sleeve 16 can not only monitor the temperature of the working area of ​​the main body 8, but also fix the main body 8, and has the characteristics of compact structure and strong practicality.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery heat dissipation device, comprising a housing (1), characterized in that: The inner wall of the shell (1) is provided with a sealing cover (2), the top of the sealing cover (2) is fixedly equipped with a water cooling plate (3), the water outlet of the water cooling plate (3) is fixedly equipped with a water guide pipe (5), the top of the sealing cover (2) is tightly fitted with a bolt (6), the outer wall of the shell (1) is fixedly equipped with a controller (7), the inner wall of the shell (1) is provided with a partition (37), the outer wall of the partition (37) is provided with a mounting hole (27), the inner wall of the mounting hole (27) is sleeved with a sleeve (16), the inner wall of the sleeve (16) is fixedly equipped with a round rod (32), the round rod The outer wall of the second return spring (32) is sleeved with a second return spring (31), the outer wall of the second return spring (31) is in contact with a movable ring (36), the outer wall of the movable ring (36) is fixedly equipped with a fixed rod (34), the end of the fixed rod (34) is fixedly equipped with a piston (29), the outer wall of the piston (29) is fixedly equipped with a second pressure sensor (30), the outer wall of the second sleeve (16) is fixedly sleeved with a limit ring (33), the outer wall of the second sleeve (16) is threadedly connected with a threaded ring (35), the bottom of the sealing cover (2) is fixedly equipped with a baffle (26), and the shell (1) A docking groove (28) is provided on the top, a circular hole (20) is provided on the top of the sealing cover (2), a fan (4) is provided on the inner wall of the circular hole (20), the end of the water pipe (5) is connected to a cold head (9), a slide groove 1 (18) and a slide groove 2 (19) are provided on the bottom of the sealing cover (2), a cross bar (14) is fixedly mounted on the inner wall of the slide groove 1 (18), a return spring 1 (15) is sleeved on the outer wall of the cross bar (14), the inner wall of the slide groove 1 (18) is slidably connected to a limit block (13), and a sleeve 1 (12) is fixedly mounted on the bottom of the limit block (13) A tension spring (22) is provided at the top of the inner wall of the sleeve (12), a limit ring (25) is provided at the bottom end of the tension spring (22), a strong magnet (24) is fixedly mounted on the top of the limit ring (25), an electromagnet (23) is also fixedly mounted on the top of the inner wall of the sleeve (12), a movable plate (11) is fixedly mounted on the bottom of the limit ring (25), a pressure sensor (21) is fixedly mounted on the outer wall of the movable plate (11), a square groove (17) is provided at the bottom of the movable plate (11), and a limit plate (10) is fixedly mounted on the outer wall of the movable plate (11).

2. A battery heat dissipation device according to claim 1, characterized in that: The outer wall of the limit plate (10) is slidably connected to the inner wall of the shell (1), and the inner wall of the square groove (17) is slidably connected to the outer wall of the cold head (9). The position of the pressure sensor 2 (30) corresponds to the position of the pressure sensor 1 (21), and the pressure sensor 2 (30) and the pressure sensor 1 (21) are both electrically connected to the controller (7).

3. A battery heat dissipation device according to claim 1, characterized in that: The number of the water pipes (5) is three, two of the water pipes (5) are connected to the water inlet of the cold head (9), and the water outlet of the cold head (9) is connected to the water inlet of the water cooling plate (3) through another water pipe (5).

4. A battery heat dissipation device according to claim 1, characterized in that: The number of the fans (4) is eight, and the eight fans (4) are divided into two groups, and the two groups of fans (4) are respectively arranged at two ends of the housing (1).

5. A battery heat dissipation device according to claim 1, characterized in that: When the electromagnet (23) is energized, the electromagnet (23) and the strong magnet (24) repel each other with the same polarity, and the outer wall of the limiting ring (25) is slidably connected with the inner wall of the sleeve (12).

6. A battery heat dissipation device according to claim 1, characterized in that: The inner wall of the mounting hole (27) is slidably connected to the outer wall of the second sleeve (16); the outer walls of the limiting ring (33) and the threaded ring (35) are respectively tightly fitted to the two sides of the partition (37); and the second sleeve (16) is fixedly connected to the partition (37) via the limiting ring (33) and the threaded ring (35).

7. A battery heat dissipation device according to claim 1, characterized in that: The outer wall of the limit plate (10) is slidably connected to the inner wall of the second slide groove (19), the number of the limit plates (10) is four, and the four limit plates (10) are evenly distributed with the center point of the shell (1) as the axis.

8. A battery pack, comprising a body (8), characterized in that: The top of the body (8) is slidably connected to the bottom of the movable plate (11) and the limiting plate (10), respectively, and the top of the body (8) is tightly fitted to the outer wall of the second sleeve (16).

9. A battery heat dissipation method, comprising the following steps, characterized in that: S1: When the main body (8) inside the battery device is supplying power, the main body (8) generates electricity due to the reaction of internal chemical components. The change in voltage and the progress of the chemical reaction will cause heat to be generated inside the main body (8), causing the main body (8) to heat up rapidly. When the temperature is transferred, the temperature in the space where the main body (8) is located will increase. At this time, the fan (4) is in operation to introduce cold air into the housing (1), and the fan (4) at the lower end is used to exhaust hot air. When the temperature cannot be reduced to the temperature range of the normal operation of the main body (8), the increase in temperature will cause the air pressure in the space where the main body (8) is located to expand due to thermal expansion and contraction, thereby causing the piston (29) to ) slides along the inner wall of the second sleeve (16), so that the second pressure sensor (30) and the first pressure sensor (21) are fitted together, so that the space where the temperature of the main body (8) is increased is connected with the space where another main body (8) is located, so that the heat is transferred to the next main body (8), thereby avoiding the risk of explosion caused by rapid temperature increase. In the process of movement of the piston (29), the movable plate (11) is pushed to move and the bulging detection operation is performed on the main body (8), thereby avoiding the bulging of the main body (8) during the operation, thereby facilitating the user to timely maintain the heat dissipation device and the main body (8), thereby improving the safety of the device during operation; S2: After the bulging detection operation, the temperature of the space where a certain body (8) is located rises rapidly because the pressure sensor 1 (21) and the pressure sensor 2 (30) are fitted together. At this time, the controller (7) controls the water cooling plate (3) to operate, so that the fan (4) and the cooling water operate synchronously to cool down the body (8) with the increased temperature and the body (8) receiving the heat, respectively, to ensure that both bodies (8) can operate normally without explosion. The other two bodies (8) are cooled in the same way, thereby achieving the effect of accurately monitoring the temperature of the body (8) and dissipating heat, thereby improving the intelligence and automation of the device and the temperature control effect of the body (8); S3: When installing the device and the main body (8), the user can directly place the main body (8) in the shell (1), and then directly insert the sleeve (16) into the installation hole (27), and use the limiting ring (33) to limit the sleeve (16), and the threaded ring (35) is threadedly connected to fix the sleeve (16) and the partition (37). At this time, the sleeve (16) can not only monitor the temperature of the working area of ​​the main body (8), but also fix the main body (8), and has the characteristics of compact structure and strong practicality.

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