Explosion-proof lithium battery

Abstract

This utility model discloses an explosion-proof lithium battery, including a battery box and a lithium battery body disposed within the battery box. The battery box has an explosion-proof component inside, and heat dissipation components at both ends. Two mounting structures are installed on the inner wall of the battery box. The explosion-proof component includes a lower frame with multiple reinforcing ribs connected to it, and an upper frame connected to the reinforcing ribs. The heat dissipation component includes two heat dissipation boxes disposed within the battery box, with cooling fans connected to the inner walls of both boxes via brackets. Heat dissipation vents are provided on the side walls of the battery box. The mounting structure includes a support frame, and hanging rods are mounted on the heat dissipation boxes. The heat dissipation component of this utility model enables rapid heat dissipation of the lithium battery, preventing excessively high internal temperatures that could cause the lithium battery cell structure to expand or even burst. The explosion-proof component prevents damage to the battery box from the impact of an explosion. The mounting structure allows for quick assembly and disassembly of the heat dissipation component from the battery box.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery technology, and in particular relates to an explosion-proof lithium battery. Background Technology

[0002] Lithium-ion batteries are high-efficiency, rechargeable secondary batteries that store and release energy by moving lithium ions between the positive and negative electrodes. The positive electrode typically uses materials such as lithium cobalt oxide or lithium iron phosphate, while the negative electrode is mostly made of graphite or silicon-based materials. The electrolyte is an organic lithium salt solution. Lithium-ion batteries have advantages such as high energy density, long cycle life, and low self-discharge rate, and are widely used in consumer electronics, electric vehicles, and energy storage.

[0003] In existing lithium batteries, the batteries are placed inside a battery case. However, the battery case is mostly sealed, which makes it difficult to cool the lithium batteries. Excessive temperature inside the battery case can cause the lithium battery cell structure to expand or even burst, making the lithium batteries unsafe to use. Therefore, based on actual usage, we have improved the above-mentioned existing technology. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art and provides an explosion-proof lithium battery to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an explosion-proof lithium battery, including a battery box and a lithium battery body disposed inside the battery box, the battery box is provided with a top cover, the inner cavity of the battery box is provided with an explosion-proof component supporting the lithium battery body, both ends of the battery box are provided with heat dissipation components, and the inner wall of the battery box is equipped with two sets of mounting structures.

[0006] The explosion-proof component includes a lower frame located inside the battery box, with multiple sets of reinforcing ribs connected to the lower frame, and an upper frame connected to one end of the reinforcing ribs near the top cover.

[0007] The heat dissipation component includes two sets of heat dissipation boxes located inside the battery box. The inner walls of both sets of heat dissipation boxes are connected to cooling fans via brackets, and the side walls of the battery box are provided with heat dissipation vents.

[0008] The mounting structure includes a support frame connected to the inner wall of the battery box, and a hanging rod mounted on the support frame on the heat dissipation box.

[0009] In a preferred embodiment of the present invention, the heat dissipation component further includes a heat-conducting plate fixed to the inner wall of the heat dissipation box, and the heat-conducting plate is fitted to the outer wall of the lithium battery body.

[0010] In a preferred embodiment of this utility model, multiple sets of heat dissipation fins and heat dissipation copper pipes are installed on the side of the heat conduction plate near the heat dissipation fan, and a dustproof mesh is snapped onto the inner wall of the heat dissipation port.

[0011] In a preferred embodiment of this utility model, a reinforcing inner plate is welded to the side of the multiple sets of reinforcing ribs near the lithium battery body, and openings for placing heat-conducting plates are provided at both ends of the multiple sets of reinforcing ribs.

[0012] In a preferred embodiment of this utility model, the support frame is provided with an installation groove for placing a hanging rod, the hanging rod is provided with a threaded hole, and the support frame is threadedly connected with a locking bolt that is threadedly connected to the threaded hole.

[0013] In a preferred embodiment of this utility model, a positive terminal and a negative terminal are connected to the main body of the lithium battery, and a through hole is provided on the top cover for the positive terminal and the negative terminal.

[0014] In a preferred embodiment of this utility model, two sets of screws are threadedly connected to both sides of the top cover, and threaded holes for connecting with the screws are provided on the battery box.

[0015] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0016] The heat-conducting plate on the heat dissipation component of this utility model has good thermal conductivity, which can conduct the heat from the lithium battery to multiple sets of heat dissipation fins and heat dissipation copper pipes. After the cooling fan is working, it generates negative pressure, which can dissipate the heat from the lithium battery through the heat dissipation port, realizing rapid heat dissipation of the lithium battery and avoiding excessive internal temperature of the battery box, which may cause the lithium battery cell structure to expand or even burst. The reinforcing ribs and reinforcing inner plate of the explosion-proof component improve the strength of the outer side of the lithium battery, prevent the impact force of the explosion from damaging the battery box, and improve the safety of lithium battery use. Through the connection between the hanging rod on the mounting structure and the mounting groove on the support frame, and the threaded connection between the locking bolt and the hanging rod, the heat dissipation box can be removed or installed from the heat dissipation port, realizing quick assembly and disassembly of the heat dissipation component and the battery box, which facilitates the assembly and disassembly of the heat dissipation component. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0019] Figure 2 This is a front cross-sectional view of a preferred embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the explosion-proof component structure of a preferred embodiment of the present invention.

[0021] In the diagram: 10. Battery box; 11. Top cover; 12. Lithium battery body; 20. Explosion-proof components; 201. Lower frame; 202. Upper frame; 203. Reinforcing rib; 204. Reinforcing inner plate; 205. Opening; 30. Heat dissipation components; 301. Heat dissipation box; 302. Heat conduction plate; 303. Heat dissipation fins; 304. Copper heat dissipation pipe; 305. Cooling fan; 306. Heat dissipation vent; 307. Dustproof net; 40. Installation structure; 401. Support frame; 402. Mounting groove; 403. Hanging rod; 404. Locking bolt. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0023] Combination Figures 1 to 3 As shown, this embodiment provides an explosion-proof lithium battery, including a battery box 10 and a lithium battery body 12 disposed inside the battery box 10. The battery box 10 is provided with a top cover 11, and the inner cavity of the battery box 10 is provided with an explosion-proof component 20 supporting the lithium battery body 12. Both ends of the battery box 10 are provided with heat dissipation components 30, and two sets of mounting structures 40 are installed on the inner wall of the battery box 10. The lithium battery body 12 is an existing type, and the specific model is not described here. The specific working principle is not described here.

[0024] In this embodiment, the explosion-proof component 20 includes a lower frame 201 disposed inside the battery box 10. Multiple sets of reinforcing ribs 203 are connected to the lower frame 201, and an upper frame 202 is connected to one end of each reinforcing rib near the top cover 11. The lower frame 202 is fixed to the bottom wall of the inner cavity of the battery box 10. The lower frame 201, upper frame 202, and multiple sets of reinforcing ribs 203 form a rectangular structure to accommodate the lithium battery body 12. The multiple sets of reinforcing ribs 203 can strengthen the outer side of the lithium battery body 12, preventing the impact force generated by the explosion of the lithium battery body 12. The battery box 10 is damaged. The heat dissipation component 30 includes two sets of heat dissipation boxes 301 disposed inside the battery box 10. The inner walls of the two sets of heat dissipation boxes 301 are connected to heat dissipation fans 305 by brackets. The side wall of the battery box 10 is provided with heat dissipation vents 306. The heat dissipation fan 305 can be connected to the power supply unit of the lithium battery body 12 by wires, or a power supply for powering the heat dissipation fan 305 can be placed inside the battery box 10. After the heat dissipation fan 305 is working, it can exhaust air and dissipate the heat generated by the lithium battery body 12 during operation from the heat dissipation vents 306.

[0025] Furthermore, the mounting structure 40 includes a support frame 401 connected to the inner wall of the battery box 10, and a hanging rod 403 mounted on the heat dissipation box 301 and hung on the support frame 401; the heat dissipation box 301 is fixedly connected to the hanging rod 403, the support frame 401 is fixedly connected to the inner wall of the battery box 10, the size of the heat dissipation box 301 is adapted to the size of the heat dissipation port 306, and the connection between the hanging rod 403 and the support frame 401 makes it easy for the heat dissipation box 301 to slide out of the heat dissipation port 306 or be installed inside the battery box 10.

[0026] In this embodiment, the heat dissipation component 30 further includes a heat-conducting plate 302 fixed to the inner wall of the heat dissipation box 301. The heat-conducting plate 302 is fitted to the outer wall of the lithium battery body 12. Multiple sets of heat dissipation fins 303 and heat dissipation copper pipes 304 are installed on the side of the heat-conducting plate 302 near the heat dissipation fan 305. A dustproof mesh 307 is snapped onto the inner wall of the heat dissipation port 306. The heat-conducting plate 302 has good thermal conductivity and can dissipate the heat generated by the lithium battery body 12 during operation through the multiple sets of heat dissipation fins 303 and heat dissipation copper pipes 304, thereby achieving rapid heat dissipation of the lithium battery body 12. Multiple sets of reinforcing ribs 203 are welded with reinforcing inner plates 204 on the side near the lithium battery body 12. Openings 205 for placing the heat-conducting plate 302 are opened at both ends of the multiple sets of reinforcing ribs 203. The reinforcing inner plates 204, together with the multiple sets of reinforcing ribs 203, can improve the strength of the outer side of the lithium battery body 12, prevent the impact force generated by the explosion from damaging the battery box 10, and improve the safety of lithium battery use.

[0027] Furthermore, the support frame 401 has an installation groove 402 for placing the hanging rod 403, and the hanging rod 403 has a threaded hole. The support frame 401 is threaded with a locking bolt 404 that is threaded with the threaded hole. The rotation of the locking bolt 404 can fix or loosen the hanging rod 403. The hanging rod 403 can be fixed in the installation groove 402 or removed from the installation groove 402, which facilitates the installation of the heat dissipation box 301 in the battery box 10 or its sliding out from the heat dissipation port 306, and facilitates the installation and removal of the heat dissipation component 30. The lithium battery body 12 is connected with a positive terminal and a negative terminal. The top cover 11 has through holes for the positive terminal and the negative terminal. Both sides of the top cover 11 are threaded with two sets of screws. The battery box 10 has threaded holes for the screws.

[0028] In actual use, the heat dissipation box 301 on the heat dissipation component 30 slides into the battery box 10 through the heat dissipation port 306. When the hanging rod 403 on the mounting structure 40 is installed in the mounting groove 402, the locking bolt 404 is rotated to connect with the threaded hole on the hanging rod 403, thus completing the installation of the heat dissipation component 30. Then, the electrical terminal of the cooling fan 304 is electrically connected to the electrical terminal of the lithium battery body 12 or the internal power supply through the wire. The heat conduction plate 302 has good heat conduction effect and can dissipate the heat generated by the lithium battery body 12 during operation through multiple sets of heat dissipation fins 303 and heat dissipation copper pipes 304. After the cooling fan 305 is working, the heat can be discharged through the heat dissipation port 306, realizing rapid heat dissipation of the lithium battery and avoiding excessive internal temperature of the battery box 10, which may cause the lithium battery cell structure to expand or even burst. The reinforcing ribs 203 and reinforcing inner plate 204 of the explosion-proof component 20 improve the strength of the outer side of the lithium battery, prevent the impact force generated by the explosion from damaging the battery box 10, and improve the safety of lithium battery use.

[0029] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An explosion-proof lithium battery, comprising a battery case (10) and a lithium battery body (12) disposed within the battery case (10), characterized in that, The battery box (10) is provided with a top cover (11), the inner cavity of the battery box (10) is provided with an explosion-proof component (20) supporting the lithium battery body (12), both ends of the battery box (10) are provided with heat dissipation components (30), and the inner wall of the battery box (10) is equipped with two sets of installation structures (40). Explosion-proof component (20), the explosion-proof component (20) includes a lower frame (201) disposed in the battery box (10), the lower frame (201) is connected to a plurality of reinforcing ribs (203), and the end of the reinforcing rib (203) near the top cover (11) is connected to an upper frame (202); Heat dissipation component (30), the heat dissipation component (30) includes two sets of heat dissipation boxes (301) disposed in the battery box (10), the inner walls of the two sets of heat dissipation boxes (301) are connected to heat dissipation fans (305) by brackets, and the side wall of the battery box (10) is provided with heat dissipation vents (306). The mounting structure (40) includes a support frame (401) connected to the inner wall of the battery box (10), and a hanging rod (403) is mounted on the heat dissipation box (301) and hung on the support frame (401).

2. The explosion-proof lithium battery according to claim 1, characterized in that, The heat dissipation component (30) also includes a heat-conducting plate (302) fixed to the inner wall of the heat dissipation box (301), and the heat-conducting plate (302) is attached to the outer wall of the lithium battery body (12).

3. The explosion-proof lithium battery according to claim 2, characterized in that, The heat-conducting plate (302) has multiple sets of heat dissipation fins (303) and heat dissipation copper pipes (304) installed on the side near the heat dissipation fan (305), and a dustproof mesh (307) is snapped onto the inner wall of the heat dissipation port (306).

4. The explosion-proof lithium battery according to claim 2, characterized in that, Multiple sets of reinforcing ribs (203) are welded with reinforcing inner plates (204) on the side close to the lithium battery body (12), and openings (205) for placing heat-conducting plates (302) are provided at both ends of the multiple sets of reinforcing ribs (203).

5. The explosion-proof lithium battery according to claim 1, characterized in that, The support frame (401) has an installation groove (402) for placing a hanging rod (403), the hanging rod (403) has a threaded hole, and the support frame (401) is threaded with a locking bolt (404) that is threaded to the threaded hole.

6. The explosion-proof lithium battery according to claim 1, characterized in that, The lithium battery body (12) is connected to a positive terminal and a negative terminal, and the top cover (11) has through holes for the positive terminal and the negative terminal.

7. The explosion-proof lithium battery according to claim 1, characterized in that, The top cover (11) has two sets of screws threadedly connected to both sides of its side walls, and the battery box (10) has threaded holes for connecting with the screws.

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