CN215496907U

CN215496907U - Multistage explosion-proof equipment that lithium cell was used

Info

Publication number: CN215496907U
Application number: CN202121409922.XU
Authority: CN
Inventors: 孙友兵; 陈玲
Original assignee: Shenzhen Jiayuan Tongda Technology Co ltd
Current assignee: Shenzhen Jiayuan Tongda Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-01-11
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a multi-stage explosion-proof device for a lithium battery, which comprises a main body, wherein a plurality of first springs are welded on the inner wall of the bottom end of the main body, a placing plate is welded on the top ends of the first springs, a battery body and a protective barrel are arranged on the top of the placing plate, a first cavity is formed in the protective barrel, sand elimination and prevention are arranged in the first cavity, a plurality of elastic sheets are welded on the inner wall of the main body, a clamping plate is welded on one side of each elastic sheet, a top cover is arranged on the top of the main body, and a second spring is welded on the bottom of the top cover. The placing plate is supported by the first spring, the lithium battery can be buffered when the lithium battery explodes, the elastic sheet can push the clamping plate to clamp the protective cylinder, the battery is fixed on one hand, the buffering capacity can be provided on the other hand, sand is eliminated from the protective cylinder, the explosion impact force can be buffered, and the sand is eliminated to extinguish the lithium battery when the lithium battery explodes and burns, so that the explosion hazard is reduced.

Description

Multistage explosion-proof equipment that lithium cell was used

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a multi-stage explosion-proof device for a lithium battery.

Background

Currently, power sources are developed to have high capacity, high safety and light weight, and lithium batteries are widely used in electronic products due to their excellent characteristics such as high capacity. The lithium cell includes casing, apron and electric core etc. and wherein the inside of casing is arranged in to electric core, and the upper end of casing has the upper end opening, and the opening at the upper end of casing is then sealed to the apron, and the rethread forms the utmost point post on the apron, then can realize the power supply with lithium cell and outside electronic component electric connection.

When the lithium battery is used, abnormal gas is generated along with the chemical reaction in the battery due to the factors such as charger failure, excessive charging and the like, so that the internal pressure of the battery is overlarge, the battery explosion accident occurs, the general lithium battery is not protected, and when the explosion accident occurs, great harm is easily generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a multi-stage explosion-proof device for a lithium battery.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a multistage explosion-proof equipment that lithium cell was used, includes the main part, the bottom inner wall welding of main part has a plurality of first springs, and the top welding of first spring has places the board, and the top of placing the board is equipped with battery body and a protection section of thick bamboo, and first cavity has been seted up to the inside of a protection section of thick bamboo, and the inside of first cavity is equipped with the sand control that disappears, the inner wall welding of main part has a plurality of flexure strips, and the welding of one side of flexure strip has the grip block, the top of main part is equipped with the top cap, and the welding of the bottom of top cap has the second spring.

Further, the elastic sheet is formed in a V shape.

Further, the inner wall of the top of the main body is welded with a threaded sleeve, a fixing bolt is arranged inside the threaded sleeve, and a first through hole is formed in the top end of the top cover.

Furthermore, a pressing plate is welded at the bottom of the second spring.

Furthermore, a pressure lever is welded on the inner wall of the top end of the protective cylinder, and a rubber plate is bonded at the bottom end of the pressure lever.

Furthermore, the top end of the placing plate is welded with a fixing ring, and the fixing ring is located outside the protective cylinder.

Further, the bottom of main part is equipped with the air pump, place the bottom of board and seted up two second through-holes, second through-hole department is equipped with the hose, and the bottom of two hoses is equipped with out tuber pipe and air-supply line respectively, the air intake and the air outlet of air pump respectively with go out tuber pipe and air-supply line fixed connection, the middle part of going out the tuber pipe is equipped with the cooler bin.

Furthermore, a plurality of semiconductor condensation sheets are arranged inside the cooling box.

Furthermore, a sealing ring is bonded at the bottom of the top cover.

The utility model has the beneficial effects that:

1. through setting up the first spring, a protective cylinder and an elastic sheet, the first spring supports the placing plate, and can cushion the lithium battery when the lithium battery explodes, thereby reducing the explosion hazard, the elastic sheet can clamp the protective cylinder by pushing the clamping plate, so that the battery body is fixed, on one hand, the battery is fixed, on the other hand, the buffer capacity can be provided, the explosion impact force is reduced, the fire fighting sand in the protective cylinder can be buffered, and meanwhile, after the protective cylinder is broken, the fire fighting sand can extinguish the fire fighting sand when the lithium battery explodes and burns, thereby reducing the explosion hazard;

2. by arranging the pressing plate and the second spring, the pressing plate can press the protection cylinder on the placing plate, and the protection cylinder can be clamped and fixed by matching with the first spring, so that the stability of the device is improved;

3. through the arrangement of the pressing rod and the rubber plate, the pressing rod can fix the battery body, so that the battery body is fixed on the placing plate, and the rubber plate can prevent the battery body from being damaged by the pressure of the pressing rod;

4. through the arrangement of the air pump and the cooling box, air can enter the space between the fixed cylinder and the battery body through the air inlet pipe by the air pump, so that the battery body is cooled, hot air passes through the cooling box through the air outlet pipe, is cooled and finally enters the air pump to circulate, so that the battery body is fully cooled, and high-temperature explosion of the lithium battery is prevented;

5. through setting up the sealing washer, the sealing washer is convenient for seal the device to be convenient for the use of lithium cell.

Drawings

Fig. 1 is a front sectional view of a multi-stage explosion-proof device for a lithium battery proposed in embodiment 1;

fig. 2 is a front sectional view of a multi-stage explosion-proof device for a lithium battery according to embodiment 2.

In the figure: the device comprises a main body 1, a first spring 2, a placing plate 3, a fixing ring 4, a protective barrel 5, sand 6 elimination and prevention, a clamping plate 7, an elastic sheet 8, a threaded sleeve 9, a fixing bolt 10, a top cover 11, a second spring 12, a pressing plate 13, a pressing rod 14, a rubber plate 15, an air outlet pipe 16, a cooling box 17, a semiconductor condensation sheet 18, an air pump 19, a hose 20 and a sealing ring 21.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1, a multi-stage explosion-proof device for a lithium battery comprises a main body 1, a plurality of first springs 2 welded on the inner wall of the bottom end of the main body 1, a placing plate 3 welded on the top end of the first springs 2, a battery body and a protective cylinder 5 arranged on the top of the placing plate 3, a first cavity formed in the protective cylinder 5, sand 6 for fire extinguishing and fire extinguishing arranged in the first cavity, a plurality of elastic sheets 8 welded on the inner wall of the main body 1, a clamping plate 7 welded on one side of the elastic sheets 8, a top cover 11 arranged on the top of the main body 1, a second spring 12 welded on the bottom of the top cover 11, the placing plate 3 supported by the first springs 2, and capable of buffering the lithium battery when the lithium battery explodes, thereby reducing explosion hazard, the elastic sheets 8 can clamp the protective cylinder 5 by pushing the clamping plate 7, so as to fix the battery body, on the one hand fix the battery, and on the other hand can provide buffering capacity, reduce the explosion impact force, the inside fire control sand 6 of a protection section of thick bamboo 5 can cushion the explosion impact force, and the fire control sand after 5 breaks of protection section of thick bamboo simultaneously can put out a fire the processing to it when lithium cell explosion burning, reduces the harm of explosion.

Wherein, the elastic sheet 8 is V-shaped, and the V-shaped elastic sheet 8 is convenient for pushing the clamping plate 7 to clamp and fix the protection cylinder 5.

Wherein, the welding of the top inner wall of main part 1 has thread bush 9, and the inside of thread bush 9 is equipped with fixing bolt 10, and first through-hole has been seted up on the top of top cap 11, can be fixed top cap 11 through first through-hole and fixing bolt 10.

Wherein, the bottom welding of second spring 12 has clamp plate 13, and clamp plate 13 can press a protection section of thick bamboo 5 on placing board 3, and cooperation first spring 2 can carry out the centre gripping to a protection section of thick bamboo 5 fixedly, hoisting device's stability.

Wherein, the welding of the top inner wall of a protection section of thick bamboo 5 has a depression bar 14, and the bottom of depression bar 14 bonds there is rubber slab 15, can fix battery body through depression bar 14, makes battery body fix on placing board 3, and rubber slab 15 can avoid depression bar 14's pressure to make battery body damage.

Wherein, the welding of the top of placing board 3 has solid fixed ring 4, and solid fixed ring 4 is in the outside of a protective cylinder 5, and solid fixed ring 4 can fix a position and fix a protective cylinder 5 to be convenient for protective cylinder 5's stability.

Wherein, the bottom of main part 1 is equipped with air pump 19, place the bottom of board 3 and seted up two second through-holes, second through-hole department is equipped with hose 20, the bottom of two hoses 20 is equipped with tuber pipe 16 and air-supply line respectively, the air intake and the air outlet of air pump 19 respectively with tuber pipe 16 and air-supply line fixed connection, the middle part that goes out tuber pipe 16 is equipped with cooler bin 17, through air pump 19, can make the air pass through the air-supply line and get into between protective barrel 5 and the battery body, thereby cool down the battery body, hot-air passes through cooler bin 17 through tuber pipe 16, hot-air is cooled down by the cooling, get into air pump 19 at last, circulate, fully cool down the battery body, prevent lithium cell high temperature explosion.

Wherein, the inside of cooler bin 17 is equipped with a plurality of semiconductor condensation pieces 18, can carry out cooling to hot-air through semiconductor condensation piece 18 to be convenient for dispel the heat to battery body.

The working principle is as follows: the placing plate 3 is supported through the first spring 2, meanwhile, the lithium battery can be buffered when the lithium battery explodes, explosion hazard is reduced, the elastic piece 8 can push the clamping plate 7 to clamp the protective cylinder 5, so that the battery body is fixed, on one hand, the battery is fixed, on the other hand, the buffering capacity can be provided, explosion impact force is reduced, the fire-fighting sand 6 in the protective cylinder 5 can buffer the explosion impact force, and meanwhile, after the protective cylinder 5 is broken, the fire-fighting sand can perform fire extinguishing treatment on the lithium battery when the lithium battery explodes and burns, so that the explosion hazard is reduced;

the pressure plate 13 can press the protection cylinder 5 on the placing plate 3, and the protection cylinder 5 can be clamped and fixed by matching with the first spring 2, so that the stability of the device is improved;

the battery body can be fixed through the pressure rod 14, so that the battery body is fixed on the placing plate 3, and the rubber plate 15 can prevent the battery body from being damaged by the pressure of the pressure rod 14;

through air pump 19, can make the air pass through the air-supply line and get into between protective barrel 5 and the battery body to cooling to the battery body, hot-air is through going out tuber pipe 16 through cooler bin 17, and hot-air is by cooling, gets into air pump 19 at last, circulates, fully cools down to the battery body, prevents the explosion of lithium cell high temperature.

Example 2

Referring to fig. 2, compared with embodiment 1, in the present embodiment, in order to increase the practicability of the device, a sealing ring 21 is bonded to the bottom of the top cover 11, and the device is conveniently sealed by the sealing ring 21, so that the lithium battery is conveniently used.

air can enter between the protective cylinder 5 and the battery body through the air inlet pipe through the air pump 19, so that the battery body is cooled, hot air passes through the cooling box 17 through the air outlet pipe 16, is cooled and cooled, and finally enters the air pump 19 to circulate, so that the battery body is fully cooled, and the high-temperature explosion of the lithium battery is prevented;

sealing of the device is facilitated by the sealing ring 21, thereby facilitating the use of a lithium battery.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a multistage explosion-proof equipment that lithium cell was used, includes main part (1), its characterized in that, a plurality of first springs (2) of bottom inner wall fixedly connected with of main part (1), board (3) are placed to the top fixedly connected with of first spring (2), and the top of placing board (3) is equipped with battery body and a protection section of thick bamboo (5), and first cavity has been seted up to the inside of a protection section of thick bamboo (5), and the inside of first cavity is equipped with disappears and prevents sand (6), a plurality of flexure strips of inner wall fixedly connected with (8) of main part (1), one side fixedly connected with grip block (7) of flexure strip (8), the top of main part (1) is equipped with top cap (11), the bottom fixedly connected with second spring (12) of top cap (11).

2. The multistage explosion-proof device for a lithium battery as claimed in claim 1, wherein the elastic sheet (8) is formed in a V-shape.

3. The multi-stage explosion-proof device for the lithium battery as claimed in claim 1, wherein a threaded sleeve (9) is fixedly connected to the inner wall of the top of the main body (1), a fixing bolt (10) is arranged inside the threaded sleeve (9), and a first through hole is formed in the top end of the top cover (11).

4. The multi-stage explosion-proof device for the lithium battery as claimed in claim 1, wherein a pressing plate (13) is fixedly connected to the bottom of the second spring (12).

5. The multi-stage explosion-proof device for the lithium battery as claimed in claim 1, wherein a pressure lever (14) is fixedly connected to the inner wall of the top end of the protection cylinder (5), and a rubber plate (15) is bonded to the bottom end of the pressure lever (14).

6. The multistage explosion protection device for lithium batteries according to claim 1, wherein a fixing ring (4) is fixedly connected to the top end of the placing plate (3), and the fixing ring (4) is located outside the protective cylinder (5).

7. The multi-stage explosion-proof device for the lithium battery as claimed in claim 1, wherein an air pump (19) is arranged at the bottom of the main body (1), two second through holes are formed in the bottom of the placing plate (3), a hose (20) is arranged at the second through hole, an air outlet pipe (16) and an air inlet pipe are respectively arranged at the bottoms of the two hoses (20), an air inlet and an air outlet of the air pump (19) are respectively fixedly connected with the air outlet pipe (16) and the air inlet pipe, and a cooling box (17) is arranged in the middle of the air outlet pipe (16).

8. The multi-stage explosion-proof device for lithium batteries according to claim 7, characterized in that the interior of the cooling box (17) is provided with a plurality of semiconductor condensation sheets (18).

9. The multi-stage explosion-proof device for lithium battery as claimed in any one of claims 1 to 8, wherein a sealing ring (21) is bonded to the bottom of the top cover (11).