Water-cooled battery pack heat dissipation structure

Abstract

The utility model relates to the technical field of batteries, and discloses a water-cooled battery pack heat dissipation structure which comprises a shell, the lower end of the outer wall of the shell is fixedly connected with a water tank, the middle of the outer wall of the shell is fixedly connected with a circulating pump, and the input end of the circulating pump is fixedly connected with a first water pumping pipe. The outer wall of the first water pumping pipe is fixedly connected to the interior of the water tank, the output end of the circulating pump is fixedly connected with a first conveying pipe, the outer wall of the first conveying pipe is fixedly connected with a first connecting pipe, the outer wall of the shell is fixedly connected with a water pump, and the input end of the water pump is fixedly connected with a second water pumping pipe. The outer wall of the second water pumping pipe is fixedly connected to the interior of the water tank. According to the cooling water storage device, the water pump is started, water in the water tank is pumped out through the second water pumping pipe, then the water is discharged into the filter box through the second conveying pipe, and the effect of filtering cooling water in the storage box is achieved through cooperation of a filter screen and an activated carbon filter plate in the filter box.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a water-cooled battery pack heat dissipation structure. Background Art

[0002] With the increase of electrical devices in modern society, people are becoming more and more dependent on electricity. Battery packs, as a portable energy storage and power supply device, are increasingly used in daily life. In order to further meet the needs, most battery packs are often wired to connect adjacent battery packs in series or in parallel during use. When several battery packs are installed together, the heat generated will be higher, and a heat dissipation structure is required.

[0003] After searching, a liquid cooling pipe system for a battery cluster is disclosed in the announcement number: CN219716986U, the liquid cooling pipe system for the battery cluster includes: a primary inlet pipe; a secondary inlet pipe, one end of the secondary inlet pipe is connected to the primary inlet pipe; a tertiary inlet pipe, there are multiple tertiary inlet pipes, one end of each tertiary inlet pipe is connected to the secondary inlet pipe, and the other end is connected to the liquid cooling plate, the multiple tertiary inlet pipes are arranged at intervals along the length direction of the secondary inlet pipe, the distance between the connection points of the two tertiary inlet pipes closest to the secondary inlet pipe and the secondary inlet pipe is L2, the distance between the connection points of the other two adjacent tertiary inlet pipes and the secondary inlet pipe is L1, and satisfies: L2<L1. According to the liquid cooling pipe system of the battery cluster of the utility model, the travel of the coolant between the connection point of the two tertiary inlet pipes closest to the secondary inlet pipe and the secondary inlet pipe can be shortened, reducing the resistance encountered by the coolant at this point, thereby improving the effect of the liquid cooling plate in controlling the temperature difference between multiple battery packs and reducing the temperature difference between multiple battery packs. The long-term use of the water-cooled heat dissipation device in this application is likely to cause blockage in the water pipe, affecting the flow of the coolant and ultimately causing the cooling effect to be greatly reduced. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a water-cooled battery pack heat dissipation structure, which aims to improve the problem that long-term use of the water-cooled heat dissipation device easily causes blockage in the water pipe, affects the flow of the coolant, and greatly reduces the cooling effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water-cooled battery pack heat dissipation structure, comprising a shell, a water tank is fixedly connected to the lower end of the outer wall of the shell, a circulating pump is fixedly connected to the middle part of the outer wall of the shell, an input end of the circulating pump is fixedly connected to a water pumping pipe 1, the outer wall of the water pumping pipe 1 is fixedly connected to the inside of the water tank, an output end of the circulating pump is fixedly connected to a delivery pipe 1, an outer wall of the delivery pipe 1 is fixedly connected to a connecting pipe 1, an outer wall of the shell is fixedly connected to a water pump, an input end of the water pump is fixedly connected to a water pumping pipe 2, the outer wall of the water pumping pipe 2 is fixedly connected to the inside of the water tank, an output end of the water pump is fixedly connected to a delivery pipe 2, an outer wall of the delivery pipe 2 is fixedly connected to a filter box, an activated carbon filter plate is slidably connected to the inside of the filter box, a filter screen is also slidably connected to the inside of the filter box, a handle is fixedly connected to the upper surface of the filter screen and the filter screen, a reflux pipe 2 is fixedly connected to the bottom end of the filter box, the bottom end of the reflux pipe 2 is fixedly connected to the inside of the water tank, and a refrigeration component is arranged on the outer wall of the connecting pipe 1.

[0006] Furthermore, the refrigeration component includes a semiconductor refrigeration plate, a heating surface of the semiconductor refrigeration plate is fixedly connected to a plurality of heat sinks, and the refrigeration plate of the semiconductor refrigeration plate is fixedly connected to the outer wall of the connecting pipe.

[0007] Furthermore, the outer wall of the connecting pipe 1 is fixedly connected to a plurality of water cooling pipes, the outer wall of the water cooling pipe is fixedly connected to the connecting pipe 2, the output end of the connecting pipe 2 is fixedly connected to the return pipe 1, and the outer wall of the return pipe 1 is fixedly connected to the inside of the water tank.

[0008] Furthermore, the inner wall of the shell is fixedly connected with an arc plate 2, the outer wall of the arc plate 2 is provided with an arc plate 1, and the outer wall of the arc plate 1 is fixedly connected to the inner wall of the shell.

[0009] Furthermore, the outer wall of the second arc plate is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is fixedly connected with a rubber block, and the outer wall of the rubber block is slidably connected to the first arc plate.

[0010] Furthermore, a spring is sleeved on the outer wall of the telescopic rod, one end of the spring is fixedly connected to the inside of the rubber block, and the other end of the spring is fixedly connected to the inside of the telescopic rod.

[0011] Furthermore, a plurality of support plates are fixedly connected to the interior of the shell, a slider is slidably connected to the interior of the support plate, a mounting plate is fixedly connected to the upper surface of the slider, a battery pack is fixedly connected to the upper surface of the mounting plate, a top plate is fixedly connected to the bottom end of the inner wall of the shell, and the upper surface of the top plate is fixedly connected to the lower surface of the condenser.

[0012] Furthermore, a plurality of fans are fixedly connected to the interior of the housing, and the outer wall of the fans is arranged on one side of the outer wall of the battery pack.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the water pump is first started to pump out the water inside the water tank through the second pumping pipe, and then the water is discharged to the inside of the filter box through the second delivery pipe. The filter screen and the activated carbon filter plate inside the filter box cooperate with each other to filter the cooling water inside the storage box. Finally, the water is reintroduced into the water tank through the second return pipe. The filter screen and the activated carbon filter plate can be moved out of the filter box by pulling the handle, so that the filter screen and the activated carbon filter plate can be easily cleaned or replaced. The problem of long-term use of water inside the storage box, which easily causes blockage in the water pipe, affects the flow of coolant, and greatly reduces the cooling effect is solved, thereby improving the heat dissipation effect of the heat dissipation structure.

[0015] 2. In the utility model, by designing a plurality of semiconductor refrigeration plates on the outer wall of the connecting tube 1, the effect of preventing the cooling water from increasing in temperature after cooling the multi-layer battery pack and reducing the cooling effect on the upper battery pack is achieved. By the coordination of the arc plate 1, the arc plate 2, the spring and the rubber block, the battery pack is protected and the heat dissipation durability of the heat dissipation mechanism is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a water-cooled battery pack heat dissipation structure proposed by the utility model;

[0017] Figure 2 This is a side view of a water-cooled battery pack heat dissipation structure proposed by the utility model;

[0018] Figure 3 This is a cross-sectional view of a filter box of a water-cooled battery pack heat dissipation structure proposed by the utility model;

[0019] Figure 4 This is a cross-sectional view of the shell of a water-cooled battery pack heat dissipation structure proposed by the utility model;

[0020] Figure 5 A cross-sectional view of a curved plate of a water-cooled battery pack heat dissipation structure proposed by the utility model.

[0021] Legend:

[0022] 1. Shell; 2. Top plate; 3. Support plate; 4. Water tank; 5. Circulation pump; 6. Suction pipe 1; 7. Delivery pipe 1; 8. Water pump; 9. Suction pipe 2; 10. Delivery pipe 2; 11. Filter box; 12. Filter screen; 13. Activated carbon filter plate; 14. Handle; 15. Connecting pipe 1; 16. Semiconductor refrigeration plate; 17. Heat sink; 18. Water cooling pipe; 19. Connecting pipe 2; 20. Condenser; 21. Reflux pipe 1; 22. Fan; 23. Mounting plate; 24. Slider; 25. Arc plate 1; 26. Arc plate 2; 27. Telescopic rod; 28. Rubber block; 29. ​​Spring; 30. Battery pack; 31. Reflux pipe 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-3 The utility model provides an embodiment: a water-cooled battery pack heat dissipation structure, including a shell 1, a lower end of the outer wall of the shell 1 is fixedly connected to a water tank 4, a circulating pump 5 is fixedly connected to the middle of the outer wall of the shell 1, an input end of the circulating pump 5 is fixedly connected to a pumping pipe 6, an outer wall of the pumping pipe 6 is fixedly connected to the inside of the water tank 4, an output end of the circulating pump 5 is fixedly connected to a delivery pipe 7, an outer wall of the delivery pipe 7 is fixedly connected to a connecting pipe 15, an outer wall of the shell 1 is fixedly connected to a water pump 8, an input end of the water pump 8 is fixedly connected to a pumping pipe 9, and a pumping pipe 10 is fixedly connected to the outer wall of the delivery pipe 7. The outer wall of water pipe 2 9 is fixedly connected to the inside of water tank 4, the output end of water pump 8 is fixedly connected to delivery pipe 2 10, the outer wall of delivery pipe 2 10 is fixedly connected to filter box 11, the inside of filter box 11 is slidably connected to activated carbon filter plate 13, the inside of filter box 11 is also slidably connected to filter screen 12, the filter screen 12 and the upper surface of filter screen 12 are fixedly connected to handles 14, the bottom end of filter box 11 is fixedly connected to return pipe 2 31, the bottom end of return pipe 2 31 is fixedly connected to the inside of water tank 4, and the outer wall of connecting pipe 15 is provided with a refrigeration component.

[0025] Specifically, start the water pump 8 to pump out the water inside the water tank 4 through the pumping pipe 2 9, and then discharge it to the inside of the filter box 11 through the delivery pipe 2 10. Through the cooperation between the filter screen 12 and the activated carbon filter plate 13 inside the filter box 11, the cooling water inside the storage box is filtered. Finally, the water is reintroduced into the water tank 4 through the reflux pipe 2 31. The filter screen 12 and the activated carbon filter plate 13 can be moved out of the filter box 11 by pulling the handle 14, so that the filter screen 12 and the activated carbon filter plate 13 can be easily cleaned or replaced, which solves the problem that the water inside the storage box is easily blocked in the water pipe due to long-term use, affecting the flow of the coolant and greatly reducing the cooling effect.

[0026] Reference Figure 1-2 The refrigeration component includes a semiconductor refrigeration plate 16, a heating surface of the semiconductor refrigeration plate 16 is fixedly connected to a plurality of heat sinks 17, the refrigeration plate of the semiconductor refrigeration plate 16 is fixedly connected to the outer wall of the connecting pipe 15, the outer wall of the connecting pipe 15 is fixedly connected to a plurality of water cooling pipes 18, the outer wall of the water cooling pipe 18 is fixedly connected to a connecting pipe 2 19, the output end of the connecting pipe 2 19 is fixedly connected to a return pipe 1 21, and the outer wall of the return pipe 21 is fixedly connected to the inside of the water tank 4.

[0027] Specifically, the circulation pump 5 is started to extract the cooling water in the water tank 4 through the pumping pipe 6, and then discharged to the inside of the connecting pipe 15 through the delivery pipe 7, and then the cooling water is diverted to the inside of multiple water-cooling pipes 18 through the connecting pipe 15. The cooling water flows inside the water-cooling pipes 18, taking away the heat inside the outer shell 1, thereby achieving the effect of rapid heat dissipation. By designing multiple semiconductor refrigeration plates 16 on the outer wall of the connecting pipe 15, the cooling water is prevented from increasing in temperature after cooling the multi-layer battery pack, thereby preventing the cooling effect on the upper battery pack from decreasing.

[0028] Reference Figure 2-4The inner wall of the shell 1 is fixedly connected with an arc plate 26, and the outer wall of the arc plate 26 is provided with an arc plate 1 25. The outer wall of the arc plate 1 25 is fixedly connected to the inner wall of the shell 1, and the outer wall of the arc plate 26 is fixedly connected with a telescopic rod 27, and the outer wall of the telescopic rod 27 is fixedly connected with a rubber block 28, and the outer wall of the rubber block 28 is slidably connected to the arc plate 1 25. The outer wall of the telescopic rod 27 is sleeved with a spring 29, one end of the spring 29 is fixedly connected to the inside of the rubber block 28, and the other end of the spring 29 is fixedly connected to the inside of the telescopic rod 27. A plurality of support plates 3 are fixedly connected to the inside of the shell 1, and a slider 24 is slidably connected to the inside of the support plate 3. The upper surface of the slider 24 is fixedly connected with a mounting plate 23, and the upper surface of the mounting plate 23 is fixedly connected with a battery pack 30. The bottom end of the inner wall of the shell 1 is fixedly connected with a top plate 2, and the upper surface of the top plate 2 is fixedly connected to the lower surface of the condenser 20. A plurality of fans 22 are fixedly connected to the inside of the shell 1, and the outer wall of the fan 22 is arranged on one side of the outer wall of the battery pack 30.

[0029] Specifically, through the coordination of the arc plate 1 25, the arc plate 26, the spring 29 and the rubber block 28, when the battery pack 30 shakes during use, the rubber block 28 and the arc plate 1 25 are squeezed first, the arc plate 1 25 and the rubber block 28 absorb the first wave of pressure, and the rubber block 28 squeezes the spring 29, the telescopic rod 27 and the arc plate 2 26 to provide secondary protection, thereby protecting the battery pack 30 and improving the heat dissipation durability of the heat dissipation mechanism.

[0030] Working principle: when the device needs to be used, first connect the mounting plate 23 with the slider 24 to the support plate 3 inside the shell 1, quickly install the battery pack 30, and greatly improve the air flow speed inside the shell 1 through the fan 22 inside the shell 1, thereby improving the heat dissipation effect of the battery when working. When the battery runs for a long time, start the circulation pump 5 to extract the cooling water inside the water tank 4 through the pumping pipe 6, and then discharge it to the inside of the connecting pipe 15 through the delivery pipe 7, and then transfer the cooling water to the inside of multiple water-cooling pipes 18 through the connecting pipe 15. The cooling water flows inside the water-cooling pipe 18, taking away the heat inside the shell 1, thereby achieving the effect of rapid heat dissipation. When the circulation pump 5 starts to run, the semiconductor refrigeration sheet 16 is started at the same time to further cool the cooling water inside the connecting pipe 15, thereby preventing the cooling water from reaching a high temperature and causing the temperature to rise, thereby weakening the cooling effect. Finally, the cooling water in the water-cooling pipe 18 is transported to the inside of the condenser 20 through the connecting pipe 19 for rapid cooling, and then returns to the inside of the water tank 4 through the reflux pipe 21, thereby achieving the effect of water cooling circulation. When the cooling water is used for a long time, the water pump 8 can be started to extract the cooling water through the pumping pipe 9, and then discharged to the inside of the filter box 11 through the delivery pipe 10, filtered through the filter screen 12 and the activated carbon filter plate 13, and finally returned to the inside of the water tank 4 through the reflux pipe 31. When the battery pack 30 shakes during use, the rubber block 28 and the arc plate 1 25 are squeezed first, and the arc plate 1 25 and the rubber block 28 absorb the impact force generated by the shaking of the battery, and the spring 29, the telescopic rod 27 and the arc plate 2 26 are squeezed by the rubber block 28 to perform secondary protection, thereby preventing the battery pack 30 from shaking and colliding with the outer shell 1 to cause damage, thereby protecting the battery pack 30.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water-cooled battery pack heat dissipation structure, characterized in that: The invention comprises a shell, wherein the lower end of the outer wall of the shell is fixedly connected to a water tank, the middle part of the outer wall of the shell is fixedly connected to a circulating pump, the input end of the circulating pump is fixedly connected to a water pumping pipe 1, the outer wall of the water pumping pipe 1 is fixedly connected to the inside of the water tank, the output end of the circulating pump is fixedly connected to a delivery pipe 1, the outer wall of the delivery pipe 1 is fixedly connected to a connecting pipe 1, the outer wall of the shell is fixedly connected to the water pump, the input end of the water pump is fixedly connected to a water pumping pipe 2, the outer wall of the water pumping pipe 2 is fixedly connected to the inside of the water tank, the output end of the water pump is fixedly connected to a delivery pipe 2, the outer wall of the delivery pipe 2 is fixedly connected to a filter box, the inside of the filter box is slidably connected to an activated carbon filter plate, the inside of the filter box is also slidably connected to a filter screen, the upper surfaces of the filter screen and the filter screen are both fixedly connected to handles, the bottom end of the filter box is fixedly connected to a return pipe 2, the bottom end of the return pipe 2 is fixedly connected to the inside of the water tank, and the outer wall of the connecting pipe 1 is provided with a refrigeration assembly.

2. The water-cooled battery pack heat dissipation structure according to claim 1, characterized in that: The refrigeration component comprises a semiconductor refrigeration plate, a heating surface of the semiconductor refrigeration plate is fixedly connected to a plurality of heat sinks, and the refrigeration plate of the semiconductor refrigeration plate is fixedly connected to the outer wall of the connecting pipe 1.

3. The water-cooled battery pack heat dissipation structure according to claim 1, characterized in that: The outer wall of the connecting pipe 1 is fixedly connected to a plurality of water cooling pipes, the outer wall of the water cooling pipe is fixedly connected to the connecting pipe 2, the output end of the connecting pipe 2 is fixedly connected to the return pipe 1, and the outer wall of the return pipe 1 is fixedly connected to the inside of the water tank.

4. The water-cooled battery pack heat dissipation structure according to claim 1, characterized in that: The inner wall of the shell is fixedly connected with an arc plate 2, the outer wall of the arc plate 2 is provided with an arc plate 1, and the outer wall of the arc plate 1 is fixedly connected to the inner wall of the shell.

5. The water-cooled battery pack heat dissipation structure according to claim 4, characterized in that: The outer wall of the second arc plate is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is fixedly connected with a rubber block, and the outer wall of the rubber block is slidably connected with the first arc plate.

6. The water-cooled battery pack heat dissipation structure according to claim 5, characterized in that: The outer wall of the telescopic rod is sleeved with a spring, one end of the spring is fixedly connected to the inside of the rubber block, and the other end of the spring is fixedly connected to the inside of the telescopic rod.

7. The water-cooled battery pack heat dissipation structure according to claim 1, characterized in that: A plurality of support plates are fixedly connected to the interior of the shell, a slider is slidably connected to the interior of the support plate, a mounting plate is fixedly connected to the upper surface of the slider, a battery pack is fixedly connected to the upper surface of the mounting plate, a top plate is fixedly connected to the bottom end of the inner wall of the shell, and the upper surface of the top plate is fixedly connected to the lower surface of the condenser.

8. The water-cooled battery pack heat dissipation structure according to claim 1, characterized in that: A plurality of fans are fixedly connected to the interior of the housing, and the outer wall of the fan is arranged on one side of the outer wall of the battery pack.

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