A protection plate for high energy density lithium battery

Abstract

This utility model discloses a protection plate for a high-energy-density lithium battery, including a lithium battery pack and a protection plate. The lithium battery pack and the protection plate are slidably connected by a mounting bracket and a mounting groove. A limiting plate is provided at the end of the lithium battery pack to limit the end of the mounting bracket. The limiting plate can be driven by a rope and the limiting plate. Compared with the prior art, the beneficial effects of this utility model are as follows: The structure of this utility model is scientific and reasonable, and it is safe and convenient to use. By cooperating with the mounting bracket and the mounting groove, and combining the spring telescopic column to push the limiting plate to limit its position, the protection plate can be quickly installed without relying on screws, solving the problem of low efficiency of traditional screw installation. When disassembling, it is only necessary to rotate the rotating column to rewind the rope, so that the limiting plate can be detached from the mounting bracket, and then the protection plate can be moved to complete the disassembly. The whole process is convenient to operate, which greatly saves installation and maintenance time and reduces labor costs. After the protection plate is installed, the sealing frame and the waterproof frame are in close contact.

Description

Technical Field

[0001] This utility model relates to the field of protection board technology, specifically a protection board for a high energy density lithium battery. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal require very high environmental standards. Battery protection boards are integrated circuit boards that mainly provide protection for rechargeable batteries.

[0003] While the aforementioned applications meet the user's needs to a certain extent, certain shortcomings still exist during use. Specifically, the protection boards are mostly fixed with screws, which requires tools to tighten each screw individually, making the installation process cumbersome and time-consuming. Furthermore, disassembly during later maintenance or replacement also requires repetitive and tedious operations, resulting in low installation and maintenance efficiency. This significantly increases labor and time costs, especially in large-scale application scenarios. Based on this, this utility model designs a protection board for high-energy-density lithium batteries to solve the above problems. Utility Model Content

[0004] This invention provides a protection board for a high-energy-density lithium battery, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protection board for a high energy density lithium battery, comprising a lithium battery pack and a protection board, wherein the lithium battery pack and the protection board are slidably connected by a mounting bracket and a mounting groove, and a limiting plate is provided at the end of the lithium battery pack to limit the end of the mounting bracket, wherein the limiting plate can be driven by a driving rope and the limiting plate.

[0006] A protection board for a high-energy-density lithium battery, preferably, has fixing plates welded to both ends of the protection board, a connecting frame glued to the bottom of the fixing plate, a mounting bracket glued to the bottom of the connecting frame, a mounting groove opened at the position of the mounting bracket corresponding to the lithium battery pack, a rotating column rotatably connected to one end of the lithium battery pack, a driving rope wound around the outside of the rotating column, a limit plate fixedly connected to one end of the driving rope, and a spring telescopic column installed at one end of the limit plate by screws, the spring telescopic column being fixedly connected to the lithium battery pack.

[0007] A protection board for a high-energy-density lithium battery, preferably, has a sealing frame adhered to the bottom surface of the protection board, and a waterproof frame adhered to the inner wall of the sealing frame.

[0008] A protection board for a high-energy-density lithium battery, preferably wherein the mounting bracket is slidably connected inside the mounting groove, and the inner diameter of the mounting groove is in contact with the outer diameter of the mounting bracket.

[0009] A protection board for a high-energy-density lithium battery, preferably wherein the connecting frame is made of rubber.

[0010] A protection board for a high energy density lithium battery, preferably, has one end of the limiting plate located at one end of the mounting bracket, and the limiting plate has an inclined angle at one end.

[0011] A protection board for a high-energy-density lithium battery, preferably, has guide heat sinks evenly mounted on both ends of the top of the protection board by screws, and barrier heat sinks evenly welded to both ends of the guide heat sinks, with an air inlet hole in the middle of the guide heat sink.

[0012] A protection board for a high energy density lithium battery, preferably, has multiple guide heat sinks at one end of the protection board forming a group, and the air inlet holes on the group of guide heat sinks gradually increase in size from the middle to the end of the protection board.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model has a scientifically sound and reasonable structure, and is safe and convenient to use. Through the cooperation of the mounting bracket and the mounting groove, combined with the spring telescopic column pushing the limiting plate to its limit position, the protective plate can be quickly installed without relying on screws, solving the problem of low efficiency in traditional screw installation. For disassembly, simply rotate the rotating column to rewind the rope, which will cause the limiting plate to detach from the mounting bracket. Then, move the protective plate to complete the disassembly. The entire process is convenient, significantly saving installation and maintenance time and reducing labor costs. The tight use of the sealing frame and the waterproof frame improves the sealing performance between them. With its waterproof properties, it reduces the impact of moisture and other impurities on the protective plate. The connecting frame and sealing frame also act as a buffer for the protective plate, reducing the impact of vibration, minimizing component damage, and extending the service life of the protective plate. Through the use of guide heat sinks and barrier heat sinks, external cold air enters through the air inlet and is guided by the guide heat sinks and blocked layer by layer by the barrier heat sinks, extending the residence time of the cold air inside the heat dissipation structure. This allows the cold air to exchange heat more fully with the protective plate, significantly improving heat dissipation efficiency and ensuring that the protective plate operates at a suitable temperature, avoiding performance degradation or safety issues caused by overheating. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the mounting structure of the mounting bracket of this utility model; Figure 3This is a schematic diagram of the drive rope installation structure of this utility model; Figure 4 This is a schematic diagram of the barrier heat sink installation structure of this utility model; The following are the labeling elements in the diagram: 1. Lithium battery pack; 2. Protection board; 3. Connecting assembly; 301. Fixing plate; 302. Sealing frame; 303. Waterproof frame; 304. Connecting frame; 305. Mounting bracket; 306. Mounting groove; 307. Rotating column; 308. Drive rope; 309. Spring telescopic column; 310. Limiting plate; 4. Heat dissipation assembly; 401. Guide heat dissipation fin; 402. Barrier heat dissipation fin; 403. Air inlet. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Example: Figure 1-4 As shown, this utility model provides a technical solution: a protection board for a high-energy-density lithium battery, including a lithium battery pack 1 and a protection board 2. The lithium battery pack 1 and the protection board 2 are connected by a connecting component 3. The connecting component 3 includes a fixing plate 301, a sealing frame 302, a waterproof frame 303, a connecting frame 304, a mounting bracket 305, a mounting groove 306, a rotating column 307, a driving rope 308, a spring telescopic column 309, and a limiting plate 310. Both ends of the protection plate 2 are welded with fixing plates 301. A connecting frame 304 is glued to the bottom of the fixing plate 301. A mounting bracket 305 is glued to the bottom of the connecting frame 304. The lithium battery pack 1 has a mounting groove 306 at the position corresponding to the mounting bracket 305. A rotating column 307 is rotatably connected to one end of the lithium battery pack 1. A driving rope 308 is wound around the outside of the rotating column 307. A limit plate 310 is fixedly connected to one end of the driving rope 308. A spring telescopic column 309 is installed at one end of the limit plate 310 by screws. The spring telescopic column 309 is fixedly connected to the lithium battery pack 1. A sealing frame 302 is glued to the bottom surface of the protection plate 2. A waterproof frame 303 is glued to the inner wall of the sealing frame 302.

[0018] The mounting bracket 305 is slidably connected inside the mounting groove 306. The inner diameter of the mounting groove 306 is in contact with the outer diameter of the mounting bracket 305, making the mounting bracket 305 more stable, and thus making the protective plate 2 more stable.

[0019] The connecting frame 304 is made of rubber, which can connect the fixing plate 301 to the mounting bracket 305, and can also cushion the protective plate 2 after it is installed.

[0020] One end of the limiting plate 310 is located at one end of the mounting bracket 305. The limiting plate 310 has an inclined angle at one end, which facilitates limiting the end of the mounting bracket 305 and also facilitates the movement of the limiting plate 310.

[0021] The top of the protection plate 2 is equipped with a heat dissipation component 4, which includes a guide heat dissipation fin 401, a barrier heat dissipation fin 402, and an air inlet 403. The top two ends of the protection plate 2 are evenly equipped with guide heat sinks 401 by screws. The two ends of the guide heat sinks 401 are evenly welded with barrier heat sinks 402. An air inlet hole 403 is opened in the middle of the guide heat sinks 401.

[0022] Multiple guide heat sinks 401 at one end of the protection plate 2 form a group. The air inlet holes 403 on a group of guide heat sinks 401 gradually increase in size from the middle to the end of the protection plate 2. This can block the airflow, allowing the air to enter between two guide heat sinks 401, extending the airflow path and improving the heat dissipation effect.

[0023] Multiple blocking heat sinks 402 at one end of the guide heat sink 401 form a group. The group of blocking heat sinks 402 gradually becomes longer from the inside to the outside, further blocking the wind, slowing down the wind flow speed, and further improving the heat dissipation efficiency of the protection board 2.

[0024] When installing the protective plate 2, the operator moves the protective plate 2, which in turn moves the mounting frame 305 into the mounting slot 306. This installation of the protective plate 2 then stretches the spring telescopic column 309, pushing the limiting plate 310 to move to the end of the mounting frame 305, thus limiting the end of the mounting frame 305 and achieving rapid installation of the protective plate 2. This solves the problem of low efficiency in screw-based installation of the protective plate 2 in existing systems. When the operator needs to disassemble the protective plate 2, they rotate the rotating column 307, causing the driving rope 308 to wind up to the outside of the rotating column 307. The moving rope 308 then moves the limiting plate 310, causing it to move out of the end of the mounting frame 305. The operator can then disassemble the protective plate 2 by moving it. After the protection plate 2 is installed, the sealing frame 302 and the waterproof frame 303 come into contact with the top surface of the lithium battery pack 1, which enhances the sealing and waterproof performance of the sealing frame 302 and the waterproof frame 303. When the lithium battery pack 1 vibrates, the use of the connecting frame 304 and the sealing frame 302 can buffer the protection plate 2, reduce the vibration of the protection plate 2, and reduce the damage to the protection plate 2.

[0025] During the use of the protection board 2, the heat dissipation of the protection board 2 is achieved through the guide heat sink 401 and the barrier heat sink 402. During the heat dissipation process, the outside air enters the interior of the guide heat sink 401 through the air inlet 403. Through the guidance of the guide heat sink 401 and the layer-by-layer barrier of the barrier heat sink 402, the time of the cold air inside the guide heat sink 401 can be extended, further dissipating the heat of the protection board 2, improving the heat dissipation efficiency of the protection board 2, and ensuring the use of the protection board 2.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A protection plate of a high energy density lithium battery, comprising a lithium battery pack (1) and a protection plate (2), characterized in that: The lithium battery pack (1) and the protection plate (2) are connected by a sliding fit between the mounting bracket (305) and the mounting groove (306). The end of the lithium battery pack (1) is provided with a limiting plate (310) that limits the end of the mounting bracket (305). The limiting plate (310) can be driven by the driving rope (308) and the limiting plate (310).

2. The protection plate of a high-energy-density lithium battery according to claim 1, characterized in that, The protective plate (2) has a fixing plate (301) welded to both ends. A connecting frame (304) is glued to the bottom of the fixing plate (301). A mounting bracket (305) is glued to the bottom of the connecting frame (304). The lithium battery pack (1) has a mounting groove (306) at the position corresponding to the mounting bracket (305). A rotating column (307) is rotatably connected to one end of the lithium battery pack (1). A driving rope (308) is wound around the outside of the rotating column (307). A limit plate (310) is fixedly connected to one end of the driving rope (308). A spring telescopic column (309) is installed on one end of the limit plate (310) by screws. The spring telescopic column (309) is fixedly connected to the lithium battery pack (1).

3. The protection plate of high energy density lithium battery according to claim 1, characterized in that, A sealing frame (302) is bonded to the bottom surface of the protective plate (2), and a waterproof frame (303) is bonded to the inner wall of the sealing frame (302).

4. The protection plate of high energy density lithium battery according to claim 2, characterized in that, The mounting bracket (305) is slidably connected inside the mounting groove (306), and the inner diameter of the mounting groove (306) is in contact with the outer diameter of the mounting bracket (305).

5. The protection plate of a high-energy-density lithium battery according to claim 2, wherein The connecting frame (304) is made of rubber.

6. The protection plate of a high-energy-density lithium battery according to claim 2, characterized in that, One end of the limiting plate (310) is located at one end of the mounting bracket (305), and one end of the limiting plate (310) is provided with an inclined angle.

7. The protection plate of a high-energy-density lithium battery according to claim 1, characterized in that, The top two ends of the protective plate (2) are evenly fitted with guide heat sinks (401) by screws. The two ends of the guide heat sinks (401) are evenly welded with barrier heat sinks (402). An air inlet hole (403) is opened in the middle of the guide heat sinks (401).

8. The protection plate of a high-energy-density lithium battery according to claim 7, characterized in that, The multiple guide heat sinks (401) at one end of the protection plate (2) form a group, and the air inlet holes (403) on the group of guide heat sinks (401) gradually increase in size from the middle to the end of the protection plate (2).

Images