Top cover assembly for sodium ion battery

Abstract

The utility model belongs to the technical field of top cover assemblies, and particularly relates to a top cover assembly for a sodium ion battery, which comprises a top cover main body, the bottom of the top cover main body is fixedly connected with an embedded frame, the upper surface of the top cover main body is provided with an embedded groove, a protective cover is arranged in the embedded groove, a heat dissipation assembly is arranged in the protective cover, and the heat dissipation assembly is fixedly connected with the embedded frame. Two first sliding grooves are formed in the upper surface of the top cover body, the clamping block, the dustproof piece, the pull buckle, the spring, the protective cover and the like are arranged, the protective cover is placed in the embedded groove and then pressed downwards, and due to the fact that one side of the clamping block is an inclined face, when the protective cover is pressed downwards, the clamping block is pushed to move, the spring is compressed by the clamping block, and the dustproof piece is pressed downwards. When the bottom of the protective cover reaches the bottom of the embedded groove, under the elasticity of the spring, the clamping block is pushed to be clamped in the embedded hole, the protective cover is fixed, the protective cover covers the anti-explosion piece, the anti-explosion piece is prevented from being exposed outside, and the probability that the anti-explosion piece is damaged due to external force collision is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of top cover assemblies, and particularly relates to a top cover assembly for a sodium-ion battery. Background Art

[0002] Sodium-ion batteries have lower costs and higher safety performance, making them a hot topic for scientific research. A sodium-ion battery is a secondary battery that relies on the movement of sodium ions between the positive and negative electrodes to complete charging and discharging, and its working principle is similar to that of the widely used lithium-ion battery.

[0003] However, in existing devices, the explosion-proof films on most sodium-ion battery tops are exposed. Since the explosion-proof films are relatively thin, the probability of being damaged by external force collision is relatively high. When the temperature of the sodium-ion battery rises, the temperature is transmitted to the top cover. If the temperature is not lowered in time, it will affect the service life of the sodium-ion battery. For this reason, a top cover assembly for a sodium-ion battery is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies in the prior art and propose a top cover assembly for a sodium-ion battery.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A top cover assembly for a sodium-ion battery, including a top cover main body, a fitting frame is fixedly connected to the bottom of the top cover main body, an inner embedding groove is opened on the upper surface of the top cover main body, a protective cover is arranged in the inner embedding groove, a heat dissipation component is arranged in the protective cover, two first sliding grooves are opened on the upper surface of the top cover main body, a second sliding groove is opened on one side of each first sliding groove, a fixing structure is arranged in each first sliding groove, and an explosion-proof film is fixedly arranged on the upper surface of the top cover main body.

[0006] As a further description of the above technical scheme:

[0007] Inner embedding holes are opened on the opposite sides of the protective cover, and a plurality of heat dissipation holes are opened on the upper surface of the protective cover.

[0008] As a further description of the above technical scheme:

[0009] The heat dissipation component includes a plurality of heat dissipation fins fixedly connected to the upper surface of the top cover main body and a fixing frame fixedly connected to the inner side wall of the protective cover, and two micro electric fans are fixedly connected to the upper surface of the fixing frame.

[0010] As a further description of the above technical scheme:

[0011] The fixing structure includes a clamping block slidably connected to the inner side wall of the first sliding groove. The clamping block is adapted to the embedded hole. A dust-proof sheet is fixedly connected to the upper surface of the clamping block. The dust-proof sheet is slidably connected in the second sliding groove. A pull buckle is fixedly connected to the upper surface of the dust-proof sheet.

[0012] As a further description of the above technical solution:

[0013] One side inside the first sliding groove is fixedly connected with a spring. The other end of the spring is fixedly connected with one side of the clamping block.

[0014] As a further description of the above technical solution:

[0015] A negative electrode post is fixedly connected to the upper surface of the top cover main body. A negative electrode protection ring is fixedly connected to the outer side wall of the negative electrode post. A positive electrode post is fixedly connected to the upper surface of the top cover main body. A positive electrode protection ring is fixedly connected to the outer side wall of the positive electrode post.

[0016] The present utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, for the top cover assembly for sodium-ion batteries, by setting a clamping block, a dust-proof sheet, a pull buckle, a spring and a protective cover, etc., the protective cover is placed in the embedded groove and then pressed down. Since one side of the clamping block is a slope, when the protective cover is pressed down, it pushes the clamping block to move. The clamping block compresses the spring. When the bottom of the protective cover reaches the bottom of the embedded groove, under the elasticity of the spring, it pushes the clamping block to be clamped in the embedded hole to fix the protective cover. The protective cover covers the explosion-proof sheet inside, avoiding the explosion-proof sheet being exposed outside and reducing the probability of the explosion-proof sheet being damaged by external force collision.

[0018] 2. Compared with the prior art, for the top cover assembly for sodium-ion batteries, by setting heat dissipation fins and a micro electronic fan, etc., the temperature of the sodium-ion battery is transferred to the top cover main body. Part of the heat is exported through multiple heat dissipation fins, and then the micro electronic fan blows air on the multiple heat dissipation fins to dissipate heat, accelerating the cooling of the top cover main body, thereby indirectly cooling the inside of the sodium-ion battery and avoiding too high temperature from affecting the service life of the sodium-ion battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of a top cover assembly for a sodium-ion battery proposed by the present utility model;

[0020] Figure 2 It is a plan view of a top cover assembly for a sodium-ion battery proposed by the present utility model;

[0021] Figure 3 It is an exploded view of the top cover main body and the protective cover of a top cover assembly for a sodium-ion battery proposed by the present utility model;

[0022] Figure 4 The sectional view of a top cover assembly for a sodium-ion battery proposed by the present utility model;

[0023] Figure 5 A top cover assembly for a sodium-ion battery proposed by the present utility model Figure 4 - Enlarged view of part A;

[0024] Figure 6 The schematic diagram of the fixing structure of a top cover assembly for a sodium-ion battery proposed by the present utility model;

[0025] Figure 7 The exploded view of the protective cover and fixing frame of a top cover assembly for a sodium-ion battery proposed by the present utility model.

[0026] Legend description:

[0027] 1. Top cover main body; 2. Embedded groove; 3. Explosion-proof sheet; 4. Heat dissipation assembly; 401. Heat sink; 402. Fixing frame; 403. Micro electronic fan; 5. First sliding groove; 6. Second sliding groove; 7. Fixing structure; 701. Clamping block; 702. Dust-proof sheet; 703. Pulling buckle; 704. Spring; 8. Protective cover; 9. Negative protection ring; 10. Negative pole column; 11. Positive protection ring; 12. Positive pole column; 13. Fitting frame. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figures 1 to 7The utility model provides a top cover assembly for a sodium ion battery: comprising a top cover body 1, a negative pole 10 is fixedly connected to the upper surface of the top cover body 1, a negative pole protection ring 9 is fixedly connected to the outer wall of the negative pole 10, a positive pole 12 is fixedly connected to the upper surface of the top cover body 1, a positive pole protection ring 11 is fixedly connected to the outer wall of the positive pole 12, a fitting frame 13 is fixedly connected to the bottom of the top cover body 1, an embedded groove 2 is provided on the upper surface of the top cover body 1, a protective cover 8 is provided in the embedded groove 2, and an embedded hole is provided on the side away from the protective cover 8, a plurality of heat dissipation holes are provided on the upper surface of the protective cover 8, and when the micro-electronic fan 403 is started, heat can be discharged through the heat dissipation holes, and a heat dissipation component 4 is provided in the protective cover 8, two first sliding grooves 5 are provided on the upper surface of the top cover body 1, a second sliding groove 6 is provided on one side of each first sliding groove 5, and a fixing structure 7 is provided in each first sliding groove 5, and an explosion-proof plate 3 is fixedly provided on the upper surface of the top cover body 1,

[0030] Reference Figure 4 and Figure 7 In order to accelerate the heat dissipation of the top cover body 1, the heat dissipation component 4 includes a plurality of heat sinks 401 fixedly connected to the upper surface of the top cover body 1 and a fixing frame 402 fixedly connected to the inner wall of the protective cover 8. Two micro-electronic fans 403 are fixedly connected to the upper surface of the fixing frame 402. The temperature of the sodium ion battery is transferred to the top cover body 1, and part of the heat is extracted through the plurality of heat sinks 401. Then, the micro-electronic fan 403 blows air to the plurality of heat sinks 401 to dissipate heat, thereby accelerating the cooling of the top cover body 1, thereby indirectly cooling the inside of the sodium ion battery to avoid excessive temperature and affecting the service life of the sodium ion battery;

[0031] Reference Figure 3 , Figure 5 and Figure 6 In order to achieve the purpose of fixing the protective cover 8, the fixing structure 7 includes a clamping block 701 slidably connected to the inner wall of the first sliding groove 5, the clamping block 701 is adapted to the embedded hole, the upper surface of the clamping block 701 is fixedly connected to a dustproof sheet 702, the dustproof sheet 702 is slidably connected in the second sliding groove 6, the upper surface of the dustproof sheet 702 is fixedly connected to a buckle 703, one side of the interior of the first sliding groove 5 is fixedly connected to a spring 704, and the other end of the spring 704 is fixedly connected to one side of the clamping block 701 , put the protective cover 8 into the embedded groove 2, and then press it down. Because one side of the clamping block 701 is an inclined surface, the protective cover 8 pushes the clamping block 701 to move when it is pressed down, and the clamping block 701 compresses the spring 704. When the bottom of the protective cover 8 reaches the bottom of the embedded groove 2, the clamping block 701 is pushed to be clamped in the embedded hole under the elasticity of the spring 704 to fix the protective cover 8. The protective cover 8 covers the explosion-proof disk 3 inside to prevent the explosion-proof disk 3 from being exposed to the outside, thereby reducing the probability of the explosion-proof disk 3 being damaged by external force collision.

[0032] Working principle: Place the protective cover 8 into the embedded groove 2, and then press it downwards. Since one side of the clamping block 701 is beveled, when the protective cover 8 is pressed downwards, it pushes the clamping block 701 to move. The clamping block 701 compresses the spring 704. When the bottom of the protective cover 8 reaches the bottom of the embedded groove 2, under the elasticity of the spring 704, it pushes the clamping block 701 to be clamped in the embedded hole to fix the protective cover 8. The protective cover 8 covers the explosion-proof sheet 3 inside to prevent the explosion-proof sheet 3 from being exposed outside, reducing the probability of damage to the explosion-proof sheet 3 due to external force collision. The temperature of the sodium-ion battery is transmitted to the top cover body 1, and part of the heat is led out through multiple heat sinks 401, and then the multiple heat sinks 401 are blown by the micro electronic fan 403 for heat dissipation, accelerating the cooling of the top cover body 1, thereby indirectly cooling the inside of the sodium-ion battery to avoid too high temperature and affecting the service life of the sodium-ion battery.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A top cover assembly for a sodium ion battery, comprising a top cover body (1), characterized in that: The bottom of the top cover body (1) is fixedly connected to a fitting frame (13); the upper surface of the top cover body (1) is provided with an embedded groove (2); a protective cover (8) is provided in the embedded groove (2); a heat dissipation component (4) is provided in the protective cover (8); the upper surface of the top cover body (1) is provided with two first sliding grooves (5); a second sliding groove (6) is provided on one side of each of the first sliding grooves (5); a fixing structure (7) is provided in each of the first sliding grooves (5); and an explosion-proof plate (3) is fixedly provided on the upper surface of the top cover body (1).

2. A sodium ion battery top cover assembly according to claim 1, characterized in that: The protective cover (8) has an embedded hole on one side away from the other, and a plurality of heat dissipation holes are provided on the upper surface of the protective cover (8).

3. A sodium ion battery top cover assembly according to claim 1, characterized in that: The heat dissipation assembly (4) comprises a plurality of heat dissipation fins (401) fixedly connected to the upper surface of the top cover body (1) and a fixing frame (402) fixedly connected to the inner wall of the protective cover (8), and two micro electronic fans (403) are fixedly connected to the upper surface of the fixing frame (402).

4. A top cover assembly for a sodium ion battery according to claim 2, characterized in that: The fixing structure (7) comprises a snap-in block (701) slidably connected to the inner wall of the first sliding groove (5), the snap-in block (701) being adapted to the embedded hole, a dustproof sheet (702) being fixedly connected to the upper surface of the snap-in block (701), the dustproof sheet (702) being slidably connected in the second sliding groove (6), and a buckle (703) being fixedly connected to the upper surface of the dustproof sheet (702).

5. A sodium ion battery top cover assembly according to claim 4, characterized in that: A spring (704) is fixedly connected to one side of the interior of the first sliding groove (5), and the other end of the spring (704) is fixedly connected to one side of the clamping block (701).

6. A sodium ion battery top cover assembly according to claim 1, characterized in that: A negative pole column (10) is fixedly connected to the upper surface of the top cover body (1), and a negative pole protection ring (9) is fixedly connected to the outer wall of the negative pole column (10); a positive pole column (12) is fixedly connected to the upper surface of the top cover body (1), and a positive pole protection ring (11) is fixedly connected to the outer wall of the positive pole column (12).

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