CN216624415U - An explosion-proof structure for lithium battery top cover - Google Patents

Abstract

The utility model provides an explosion-proof structure for a lithium battery top cover, which relates to the field of lithium batteries. An installation box is included, and a lithium battery is fixedly installed on the upper surface of the installation box. The explosion-proof structure used for the top cover of the lithium battery can fix the explosion-proof device above the explosion-proof hole and communicate with the explosion-proof hole by setting the elastic screw, the fixing plate and the spring. At the same time, the spring can make the elastic screw more tightened. The sliding groove and the sliding plate can make the sliding plate slide in the sliding groove, and compress the telescopic buffer device under the action of pressure to achieve the effect of buffering and explosion-proof. The shock has the effect of shock absorption. By setting the first buffer spring, the second buffer spring and the third buffer spring, the push plate makes the piston movement in the telescopic buffer device to compress the buffer spring. The arrangement of multiple springs enhances the buffering of the device. The effect makes the device better explosion-proof for the top cover.

Description

An explosion-proof structure for lithium battery top cover

technical field

The utility model relates to the technical field of lithium batteries, in particular to an explosion-proof structure for a top cover of a lithium battery.

Background technique

Lithium battery is a kind of primary battery that uses lithium metal or lithium alloy as negative electrode material and uses non-aqueous electrolyte solution. It is different from rechargeable battery lithium ion battery and lithium ion polymer battery. Due to the very active chemical properties of lithium metal , which makes the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of microelectronics technology, miniaturized equipment is increasing. Lithium batteries have then entered a large-scale practical stage.

Lithium batteries are an indispensable commodity in daily life. Many items in life are inseparable from lithium batteries to provide electricity. However, traditional lithium batteries have no flame retardant and explosion-proof measures. If there is a collision or damage during use, Combustion or even explosion will occur, causing serious damage to people or property.

Utility model content

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides an explosion-proof structure for the top cover of a lithium battery, which solves the problems mentioned in the above background art.

(2) Technical solutions

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: an explosion-proof structure for a lithium battery top cover, comprising an installation box, the upper surface of the installation box is fixedly installed with a lithium battery, and the upper surface of the lithium battery is installed. A top cover is fixedly installed on the surface, fixing bolts are fixedly installed on the upper surface of the top cover, the positive electrode of the battery is fixedly installed on the upper surface of the top cover, the negative electrode of the battery is fixedly installed on the upper surface of the top cover, and the top cover is fixedly installed on the upper surface of the top cover. An explosion-proof hole is fixedly installed on the upper surface of the explosion-proof hole, a fixing plate is fixedly installed on the upper surface of the explosion-proof hole, a loosening screw is movably installed on the outer side of the fixing plate, and a spring is fixedly installed on the outer side of the fixing plate. An explosion-proof device is fixedly installed on the upper surface, a handle is fixedly installed on the upper surface of the top cover, a chute is fixedly installed inside the explosion-proof device, and one side of the chute is fixedly installed with a sliding plate on the inner side. A telescopic buffer device is fixedly installed on the upper surface of the sliding plate.

Preferably, a first shock-absorbing spring is fixedly installed on the outer side of the telescopic buffer device, and a fixing table is fixedly installed on the upper surface of the telescopic buffer device.

Preferably, a top plate is fixedly installed on the upper surface of the fixing table, and a second damping spring is fixedly installed on the upper surface of the top plate.

Preferably, a push rod is movably installed on the lower surface of the telescopic buffer device, a push plate is fixedly installed at one end of the push rod, and a first buffer spring is fixedly installed inside the telescopic buffer device.

Preferably, a second buffer spring is fixedly installed on the upper surface of the push plate, a connection block is fixedly installed on the upper surface of the second buffer spring, and a third buffer spring is fixedly installed on the upper surface of the connection block. A buffer pad is fixedly mounted on the upper surface of the third buffer spring.

(3) Beneficial effects

The utility model provides an explosion-proof structure for a top cover of a lithium battery. The beneficial effects are as follows:

1. The explosion-proof structure used for the top cover of lithium battery can fix the explosion-proof device above the explosion-proof hole by setting the elastic screw, fixing plate and spring, and communicate with the explosion-proof hole, and the spring can make the elastic screw more tightened, By arranging the sliding groove and the sliding plate, the sliding plate can slide in the sliding groove, and the telescopic buffer device can be compressed under the action of pressure to achieve the effect of buffering and explosion-proof.

2. The explosion-proof structure used for the top cover of the lithium battery can dampen the impact of the sliding plate by setting the first damping spring and the second damping spring. By setting the first buffer spring and the second buffer The spring and the third buffer spring can make the push plate move as a piston in the telescopic buffer device to compress the buffer spring. The arrangement of multiple springs enhances the buffer effect of the device and enables the device to better explosion-proof the top cover.

Description of drawings

1 is a schematic diagram of the three-dimensional structure of the present utility model;

Fig. 2 is the top view structure schematic diagram of the present utility model;

Fig. 3 is the front view structure schematic diagram of the utility model;

4 is a schematic structural diagram of the explosion-proof device of the present invention;

FIG. 5 is a schematic structural diagram of the telescopic buffer device of the present invention.

In the picture: 1 installation box, 2 lithium battery, 3 top cover, 4 battery positive pole, 5 fixing plate, 6 explosion-proof device, 7 tightening screw, 8 handle, 9 spring, 10 battery negative pole, 11 fixing bolt, 12 explosion-proof hole, 13 Chute, 14 First shock spring, 15 Top plate, 16 Second shock spring, 17 Fixed table, 18 Telescopic buffer device, 19 Slide plate, 20 First buffer spring, 21 Second buffer spring, 22 Third buffer Spring, 23 cushion, 24 connecting block, 25 push plate, 26 push rod.

Detailed ways

The present utility model will be further elaborated below through the accompanying drawings and embodiments.

An embodiment of the present invention provides an explosion-proof structure for a lithium battery top cover, as shown in Figures 1-5, comprising an installation box 1, the upper surface of the installation box 1 is fixedly mounted with a lithium battery 2, and the upper surface of the lithium battery 2 The top cover 3 is fixedly installed, and the upper surface of the top cover 3 is fixedly installed with fixing bolts 11. By setting the fixing bolts 11, the top cover 3 and the lithium battery 2 can be fixed to protect the lithium battery 2. The upper surface of the top cover 3 The positive electrode 4 of the battery is fixedly installed, the negative electrode 10 of the battery is fixedly installed on the upper surface of the top cover 3, and the explosion-proof hole 12 is fixedly installed on the upper surface of the top cover 3. By setting the explosion-proof hole 12, it can be communicated with the explosion-proof device 6. When the pressure increases Explosion-proof is carried out by the explosion-proof device 6, the upper surface of the explosion-proof hole 12 is fixedly installed with a fixing plate 5, the outer side of the fixing plate 5 is movably installed with a loosening screw 7, and the outer side of the loosening screw 7 is fixedly installed with a spring 9. The plate 5 and the spring 9 can fix the explosion-proof device 6 above the explosion-proof hole 12 and communicate with the explosion-proof hole 12. At the same time, the spring 9 can make the tightening screw 7 more tightened, and the upper surface of the fixing plate 5 is fixedly installed with the explosion-proof device 6. , a handle 8 is fixedly installed on the upper surface of the top cover 3. By setting the handle 8, the movement of the lithium battery 2 can be facilitated. The inside of the explosion-proof device 6 is fixedly installed with a chute 13, and one side of the chute 13 is fixedly installed with an inner side. A sliding plate 19 is slidably installed, and a telescopic buffer device 18 is fixedly installed on the upper surface of the sliding plate 19. By arranging the chute 13 and the sliding plate 19, the sliding plate 19 can be slid in the chute 13 and compress and expand under the action of pressure. The buffer device 18 achieves the effect of buffering and explosion-proofing.

Specifically, the first shock-absorbing spring 14 is fixedly installed on the outer side of the telescopic buffer device 18 , and the fixing table 17 is fixedly installed on the upper surface of the telescopic buffer device 18 . lower surface.

Specifically, the top plate 15 is fixedly installed on the upper surface of the fixing table 17, and the second damping spring 16 is fixedly installed on the upper surface of the top plate 15. By arranging the first damping spring 14 and the second damping spring 16, the sliding plate The shock of 19 acts as a shock absorber.

Specifically, a push rod 26 is movably installed on the lower surface of the telescopic buffer device 18 , a push plate 25 is fixedly installed at one end of the push rod 26 , and a first buffer spring 20 is fixedly installed inside the telescopic buffer device 18 . The push plate 25 can make the push rod 26 drive the push plate 25 to move and compress the second buffer spring 21 inside the device, so as to play the role of buffering and explosion-proof.

Specifically, the second buffer spring 21 is fixedly installed on the upper surface of the push plate 25 , and the connecting block 24 is fixedly installed on the upper surface of the second buffer spring 21 . By setting the connecting block 24 , the second buffer spring 21 and the third buffer can be connected. The spring 22 improves the effect of buffering and explosion-proof of the device. The upper surface of the connecting block 24 is fixedly installed with a third buffer spring 22, and the upper surface of the third buffer spring 22 is fixedly installed with a buffer pad 23. By setting the first buffer spring 20, the second buffer spring 22 The buffer spring 21 and the third buffer spring 22 can make the push plate 25 perform piston movement in the telescopic buffer device 18 to compress the buffer spring. The arrangement of multiple springs enhances the buffer effect of the device and makes the device better for explosion-proof top cover .

All electrical equipment in this solution are powered by external power supply.

Working principle: When using, first, when the lithium battery 2 fails, a large pressure will be generated inside the lithium battery 2, and these pressures will enter the explosion-proof device 6 through the explosion-proof hole 12 to push the sliding plate 19 to move upward, and then compress the telescopic buffer At the same time, the first shock absorbing spring 14 on the outside of the telescopic buffer device 18 will be compressed to play the role of shock absorption, and the second shock absorbing spring 16 will shock the bottom of the telescopic buffer device 18 through the top plate 15 to ensure the expansion and contraction buffer. The stability of the device 18, at the same time, the inside of the telescopic buffer device 18 will compress the second buffer spring 21 through the push plate 25 to play a buffering role, and the connecting block 24 connects the second buffer spring 21 and the third buffer spring 22 to enhance the buffering of the device effect, through a series of processes, the top cover 3 of the lithium battery 2 can be effectively explosion-proof.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. An explosion-proof structure for a lithium battery top cover, comprising an installation box (1), characterized in that: a lithium battery (2) is fixedly installed on the upper surface of the installation box (1), and the lithium battery (2) ) is fixedly installed with a top cover (3), the upper surface of the top cover (3) is fixedly mounted with fixing bolts (11), and the upper surface of the top cover (3) is fixedly mounted with a battery positive electrode (4) , a battery negative electrode (10) is fixedly installed on the upper surface of the top cover (3), an explosion-proof hole (12) is fixedly installed on the upper surface of the top cover (3), and the upper surface of the explosion-proof hole (12) is fixed A fixing plate (5) is installed, the outer side of the fixing plate (5) is movably installed with a loosening screw (7), the outer side of the loosening screw (7) is fixedly installed with a spring (9), and the fixing plate (5) An explosion-proof device (6) is fixedly installed on the upper surface of the top cover (3), a handle (8) is fixedly installed on the upper surface of the top cover (3), and a chute (13) is fixedly installed inside the explosion-proof device (6). A sliding plate (19) is fixedly installed on one side of the sliding groove (13) and slidably installed on the inner side, and a telescopic buffer device (18) is fixedly installed on the upper surface of the sliding plate (19). 2. An explosion-proof structure for a lithium battery top cover according to claim 1, characterized in that: a first shock-absorbing spring (14) is fixedly installed on the outer side of the telescopic buffer device (18), and the telescopic buffer device (18) is fixedly installed on the outer side. A fixing table (17) is fixedly mounted on the upper surface of the buffer device (18). 3. An explosion-proof structure for a lithium battery top cover according to claim 2, characterized in that: a top plate (15) is fixedly installed on the upper surface of the fixing table (17), and the top plate (15) is A second shock-absorbing spring (16) is fixedly installed on the upper surface. 4. An explosion-proof structure for a lithium battery top cover according to claim 1, characterized in that: a push rod (26) is movably installed on the lower surface of the telescopic buffer device (18), and the push rod ( A push plate (25) is fixedly installed at one end of 26), and a first buffer spring (20) is fixedly installed inside the telescopic buffer device (18). 5. An explosion-proof structure for a lithium battery top cover according to claim 4, characterized in that: a second buffer spring (21) is fixedly installed on the upper surface of the push plate (25), and the second buffer spring (21) is fixedly installed on the upper surface of the push plate (25). A connection block (24) is fixedly installed on the upper surface of the buffer spring (21), a third buffer spring (22) is fixedly installed on the upper surface of the connection block (24), and the upper surface of the third buffer spring (22) is fixedly installed A buffer pad (23) is fixedly installed.

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