Lithium battery heat dissipation device

Abstract

The utility model discloses a lithium battery heat dissipation device, which comprises a lithium battery pack and two or more groups of support bodies, each group of support bodies is provided with a plurality of upper rollers and a plurality of lower rollers, and a plurality of bearings are arranged on two sides of each group of support bodies. The upper roller and the lower roller are respectively provided with a rotating shaft which is connected with the bearing, and one side of each support body is respectively provided with a water pump which is communicated with the upper roller and the lower roller in a water way mode. The temperature of liquid in the water pumps communicated with the water paths of the rollers of the rear groups is lower than the cooling temperature of water in the water pump of the front group from the first group of rollers where the lithium battery pack enters to the last group of rollers where the lithium battery comes out, so that the lithium battery can be pushed forwards to be gradually cooled and radiated through contact between the rollers and the surface of the lithium battery pack, and the performance of the battery is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery heat dissipation technology, and in particular to a lithium battery heat dissipation device. Background Technology

[0002] Currently, lithium batteries generally undergo multi-directional testing after production, such as basic performance testing, safety performance testing, and environmental adaptability testing, to ensure that their performance, safety, and reliability meet standards.

[0003] In existing technologies, lithium batteries exhibit a significant temperature rise after undergoing multiple performance tests. For high-temperature lithium batteries, using excessively low cooling water for rapid cooling can negatively impact battery performance and lifespan.

[0004] Therefore, this application is filed to address the need for heat dissipation of lithium batteries after testing and to ensure their performance. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a lithium battery heat dissipation device. It uses multiple sets of rollers, each connected to a water pump with a different liquid temperature, to gradually dissipate heat from the lithium battery pack.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A lithium battery heat dissipation device includes a lithium battery pack and two or more sets of support bodies. Each set of support bodies is provided with a plurality of upper rollers and a plurality of lower rollers. Each set of support bodies is provided with a plurality of bearings on both sides. The upper rollers and the lower rollers are respectively provided with rotating shafts connected to the bearings. Each set of support bodies is provided with a water pump on one side, which is connected to the water channels of the upper rollers and the lower rollers.

[0008] In the above scheme, preferably, the rotating shaft is provided with a rotating interface at both ends, and the rotating interface is provided with a connecting pipe.

[0009] In the above scheme, preferably, the water pump includes an outlet pipe and a return pipe, and the ends of the outlet pipe and the return pipe are respectively provided with connectors. The connectors are provided with interfaces adapted to the connecting pipe, and the end of the connecting pipe is provided on the interface.

[0010] In the above scheme, preferably, support plates are provided on both sides of the bracket body, and the support plates are located at the bottom of the interface device.

[0011] In the above scheme, preferably, the upper roller is located directly above the lower roller, forming a symmetrical arrangement, and the lithium battery pack is conveyed through friction between the upper roller and the lower roller.

[0012] In the above scheme, preferably, the upper roller and the lower roller are arranged laterally on the support body.

[0013] In the above scheme, preferably, a storage box for collecting the lithium battery pack is provided at the outlet of the support body.

[0014] In the above scheme, preferably, the liquid temperature in each group of water pumps is set to decrease gradually.

[0015] The beneficial effects of this utility model are: the lithium battery pack of this utility model is conveyed by upper and lower rollers. The temperature of the liquid in the water pump connected to the water circuit of each subsequent roller is lower than the cooling temperature of the water in the previous roller. This allows the lithium battery to be pushed forward and gradually cooled down by contacting the surface of the lithium battery pack through the rollers, so as to ensure the performance of the battery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 for Figure 1 Enlarged diagram of point A1 in the middle.

[0018] Figure 3 This is a schematic diagram of a set of support structures in this utility model.

[0019] Figure 4 This is a rear view of the present invention. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0021] See Figures 1-4 A lithium battery heat dissipation device includes a lithium battery pack 1 and two or more sets of support bodies 2. Each set of support bodies 2 is provided with multiple upper rollers 3 and multiple lower rollers 4. The upper rollers 3 and lower rollers 4 are used for conveying the lithium battery pack 1. In order to provide the lithium battery pack 1 to be pushed between the upper rollers 3 and lower rollers 4 and drive it to roll, the upper rollers 3 and lower rollers 4 are provided with rotating shafts 15. Bearings 5 ​​adapted to the rotating shafts 15 are provided on both sides of the support body 2.

[0022] Specifically, the upper roller 3 is located directly above the lower roller 4 in a symmetrical configuration. The upper roller 3 and lower roller 4 are arranged laterally on the support body 2. Rotary interfaces 7 are provided at both ends of the rotating shaft 15. The rotary interfaces 7 can transport various forms of water media such as liquids, industrial water, and steam. Their internal sealing structure effectively prevents leakage. As shown in the figure, a connecting pipe 8 is connected to each rotary interface 7. As shown in the figure, multiple connecting pipes 8 on both sides of the upper and lower parts of the support body 2 are connected to interfaces 11. Each interface 11 has an interface 12 that matches the number of connecting pipes 8. Each connecting pipe 8 is installed on each interface 12. Both sides of the connector 11 are connected to a water pump 6. The water pump 6 includes an outlet pipe 9 and a return pipe 10. The outlet pipe 9 is connected to the connector 11 on one side of the support body 2, and the return pipe 10 is connected to the connector 11 on the other side of the support body 2. The water pump 6 is filled with liquid for cooling. It is connected to the water circuit of the upper roller 3 and the lower roller 4 through the rotating shaft 15. The two ends of the rotating shaft 15 are connected to the water circuit of the pipe 8 through the rotating interface 7. The pipes 8 on both sides of the support body 2 are connected to the interface set at the upper end of the connector 11 to provide water circuit connection. The lower ends of the connectors 11 on both sides are connected to the outlet pipe 9 and the return pipe 10 of the water pump 6 respectively, so that the water pump 6 can serve as a water circuit circulation loop between the upper roller 3 and the lower roller 4.

[0023] Support plates 13 are also provided on both sides of the bracket body 2. The interface device 11 is located on the support plate 13, which can keep the interface device 11 on the support plate and prevent the interface device 11 from falling off during the water return process. A storage box 14 is provided at the outlet of the last set of bracket bodies 2 to collect the lithium battery pack 1 after cooling.

[0024] To prevent the lithium battery pack 1 from overheating and rapidly cooling down, affecting its performance, two or more sets of cooling rollers are provided. In this embodiment, four sets are provided. After some performance tests, the lithium battery pack 1 may experience overheating. For example, if the temperature of the lithium battery pack 1 after the test is 100°C, the liquid in the first set of water pumps 6 may be 80°C, the liquid in the second set of water pumps 6 may be 60°C, the liquid in the third set of water pumps 6 may be 40°C, and the liquid in the fourth set of water pumps 6 may be 20°C. The normal operating temperature range of lithium batteries is generally between 0°C and 40°C. Within this temperature range... The performance of the lithium battery is relatively stable and it can work normally. The temperature of the liquid in each group of water pumps 6 can be set according to the heat generation of the lithium battery pack 1 after the actual test. The liquid temperature of each group is from high to low, so that when the lithium battery pack 1 enters the upper roller 3 and the lower roller 4, the upper surface of the lithium battery pack 1 contacts the upper roller 3 and the lower surface of the lithium battery pack 1 contacts the lower roller 4. When pushing each group of lithium battery pack 1 in, the lithium battery pack 1 stays in each group for a certain period of time to cool down and dissipate heat, so that the lithium battery pack 1 cools down and dissipates heat gradually, preventing the lithium battery pack 1 from cooling down too quickly and affecting the performance of the lithium battery.

[0025] Working principle: Multiple sets of rollers are set up to transport lithium battery packs 1, and the liquid water temperature in each set of water pumps 6 decreases from high to low. The lithium battery pack 1 enters from the first set, stays for a certain period of cooling time, and then the next lithium battery pack 1 is placed and pushed in until it is pushed into the last set, so that the lithium battery pack 1 can be gradually cooled and dissipated, and then it falls into the storage box 14.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lithium battery heat dissipation device, comprising a lithium battery pack (1) and two or more sets of support bodies (2), characterized in that: Each set of support bodies (2) is provided with several upper rollers (3) and several lower rollers (4). Several bearings (5) are provided on both sides of each set of support bodies (2). Rotating shafts (15) are provided on the upper rollers (3) and the lower rollers (4) respectively and connected to the bearings (5). A water pump (6) is provided on one side of each set of support bodies (2) and connected to the water channels of the upper rollers (3) and the lower rollers (4).

2. The lithium battery heat dissipation device according to claim 1, characterized in that: The rotating shaft (15) is provided with a rotating interface (7) at both ends, and a connecting pipe (8) is provided on the rotating interface (7).

3. The lithium battery heat dissipation device according to claim 2, characterized in that: The water pump (6) includes an outlet pipe (9) and a return pipe (10). The outlet pipe (9) and the return pipe (10) are respectively provided with an interface (11). The interface (11) is provided with an interface (12) that is compatible with the pipe (8). The end of the pipe (8) is provided on the interface (12).

4. The lithium battery heat dissipation device according to claim 3, characterized in that: Support plates (13) are provided on both sides of the bracket body (2). The support plates (13) are located at the bottom of the interface (11). The upper roller (3) and the lower roller (4) are connected to each other through the water passage of the rotating shaft (15). The interface (12) at the upper end of the interface (11) is connected to the water passage of the pipe (8). The lower ends of the interface (11) on both sides are connected to the water outlet pipe (9) and the water return pipe (10) of the water pump (6) respectively to form a liquid circuit.

5. A lithium battery heat dissipation device according to claim 1, characterized in that: The upper roller (3) is located directly above the lower roller (4) and is symmetrical. The lithium battery pack (1) is conveyed by friction between the upper roller (3) and the lower roller (4).

6. A lithium battery heat dissipation device according to claim 1, characterized in that: The upper roller (3) and the lower roller (4) are arranged in a horizontal distribution on the support body (2).

7. A lithium battery heat dissipation device according to claim 1, characterized in that: The support body (2) is provided with a storage box (14) for collecting the lithium battery pack (1) at the outlet.

8. A lithium battery heat dissipation device according to claim 1, characterized in that: The liquid temperature in each set of water pumps (6) is set to decrease gradually.

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