CN216903059U

CN216903059U - Lithium cell high temperature protective structure

Info

Publication number: CN216903059U
Application number: CN202123300347.2U
Authority: CN
Inventors: 吴亚军; 姜伟伟
Original assignee: Changzhou Zhonglian New Energy Technology Co ltd
Current assignee: Changzhou Zhonglian New Energy Technology Co ltd
Priority date: 2021-12-25
Filing date: 2021-12-25
Publication date: 2022-07-05
Anticipated expiration: 2031-12-25

Abstract

The utility model relates to the technical field of lithium battery protection structures, in particular to a lithium battery high-temperature protection structure which comprises an explosion-proof box, an inner liner, a lithium battery, an explosion-proof cover, a fan, an air inlet pipe, a conduit, a heat conduction column, a dry powder filling layer, a heat conduction plate, a sealing element, a dry powder box and a heat dissipation hole; the lithium battery explosion-proof box is ingenious in structure, the dry powder filling cavity between the inner liner and the explosion-proof box is filled with the dry powder filling layer, when the lithium battery explodes and spontaneously ignites, the explosion-proof box can effectively avoid the splashing situation, after the inner liner is damaged, the dry powder in the dry powder filling cavity can be in contact with the lithium battery, open fire can be extinguished beneficially, the loss situation of life and property of people caused by spontaneous combustion of the lithium battery is greatly reduced, the device is ingenious in structure, the safety of the lithium battery in use is improved, and the lithium battery explosion-proof box is convenient to popularize.

Description

Lithium cell high temperature protective structure

Technical Field

The utility model relates to the technical field of a high-temperature protection structure of a lithium battery, in particular to a high-temperature protection structure of a lithium battery.

Background

Lithium batteries are a type of battery using a non-aqueous electrolyte solution and using lithium metal or a lithium alloy as a positive/negative electrode material, and have become mainstream with the development of scientific technology, and the lithium batteries can be roughly classified into two types: lithium metal battery and lithium ion battery, lithium ion battery do not contain the lithium of metallic state to can charge, lithium cell can produce the heat in the course of the work, and the lithium cell is because of the explosion that poor or trouble leads to of heat dissipation and spontaneous combustion cause the fact the thing of loss to personal safety and property occasionally to take place, consequently need a high electric battery protective structure of security very necessary.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high temperature protection structure for a lithium battery, so as to solve the problems mentioned in the background art. In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a lithium cell high temperature protective structure, includes explosion-proof box, explosion-proof box bottom plate's top surface fixed mounting has the inside lining, form the dry powder between inside lining and the explosion-proof box and fill the chamber, the dry powder is filled the intracavity and is filled there is the dry powder filling layer, explosion-proof box's top fixed mounting has explosion-proof cover, explosion-proof cover's top surface fixed mounting has the fan, the air-out end of fan is fixed to be cup jointed the air-supply line, the one end that the fan was kept away from to the air-supply line passes the inside that explosion-proof cover extended to explosion-proof box, be provided with on the both sides board that explosion-proof box is parallel to each other and be used for the supplementary radiating heat conduction mechanism of inside lining, a plurality of louvres have been seted up on explosion-proof box's the bottom plate, explosion-proof cover passes through the screw and is connected with explosion-proof box.

Preferably, heat conduction mechanism includes two heat-conducting plates and many heat conduction posts, two many heat conduction posts of the equal fixedly connected with in a side of heat-conducting plate, the outside that one end of the heat conduction post on two heat-conducting plates run through curb plate of inside lining and explosion-proof box extends to explosion-proof box, two the heat-conducting plate is located the inside of inside lining.

Preferably, the explosion-proof box is a metal box, and the top of the dry powder filling cavity is fixedly connected with a sealing element.

Preferably, the bottom surface of the explosion-proof cover is fixedly connected with a dry powder box, and a dry powder filling layer is also filled in the dry powder box.

Preferably, the bottom plate of the explosion-proof box is fixedly provided with a supporting seat for supporting the lining, and the top surface of the supporting seat is attached with a shock-absorbing rubber pad.

And a conduit for leading out a lining wire is fixedly arranged between one side plate of the explosion-proof box and one side plate of the lining in a penetrating way.

The lithium battery is arranged in the lining of the high-temperature protection structure of the lithium battery.

Compared with the prior art, the utility model has the beneficial effects that:

the two side surfaces of the lithium battery are contacted with the heat conducting plate of the heat conducting mechanism, when the lithium battery works, generated heat can be transferred to the heat conducting columns through the heat conducting plates, and then heat exchange is carried out between the heat conducting columns and air outside the explosion-proof box, so that the aim of auxiliary cooling and heat dissipation is achieved;

the lithium battery explosion-proof box is ingenious in structure, the dry powder filling cavity between the inner liner and the explosion-proof box is filled with the dry powder filling layer, when the lithium battery explodes and spontaneously ignites, the explosion-proof box can effectively avoid the splashing situation, after the inner liner is damaged, the dry powder in the dry powder filling cavity can be in contact with the lithium battery, open fire can be extinguished beneficially, the loss situation of life and property of people caused by spontaneous combustion of the lithium battery is greatly reduced, the device is ingenious in structure, the safety of the lithium battery in use is improved, and the lithium battery explosion-proof box is convenient to popularize.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic sectional view of the explosion-proof case of the present invention;

fig. 4 is a schematic perspective view of the explosion-proof cover of the present invention.

In the figure: 1. an explosion-proof box; 2. a liner; 3. a lithium battery; 4. an explosion-proof cover; 5. a fan; 6. an air inlet pipe; 7. a conduit; 8. a heat-conducting column; 9. a dry powder fill layer; 10. a heat conducting plate; 11. a seal member; 12. A dry powder box; 13. and (4) heat dissipation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a lithium cell high temperature protective structure, including explosion-proof box 1, the top surface fixed mounting of explosion-proof box 1 bottom plate has inside lining 2, it fills the chamber to form the dry powder between inside lining 2 and the explosion-proof box 1, the dry powder is filled the intracavity and is filled dry powder filling layer 9, the top fixed mounting of explosion-proof box 1 has explosion-proof lid 4, the bottom surface fixedly connected with dry powder box 12 of explosion-proof lid 4, it has dry powder filling layer 9 equally to fill in the dry powder box 12, the top surface fixed mounting of explosion-proof lid 4 has fan 5, fan 5's air-out end is fixed to be cup jointed air-supply line 6, the one end that fan 5 was kept away from to air-supply line 6 is passed explosion-proof lid 4 and is extended to the inside of explosion-proof box 1, be provided with the supplementary radiating heat conduction mechanism that is used for inside lining 2 on the both sides board that explosion-proof box 1 is parallel to each other, a plurality of louvre 13 has been seted up on explosion-proof box 1's the bottom plate, explosion-proof lid 4 is connected with explosion-proof box 1 through the screw.

Specifically, heat conduction mechanism includes two heat-conducting plates 10 and many heat conduction posts 8, and the equal fixedly connected with of a side of two heat-conducting plates 10 many heat conduction posts 8, and the one end of the heat conduction post 8 on two heat-conducting plates 10 runs through a curb plate that inside lining 2 and explosion-proof box 1 and extends to the outside of explosion-proof box 1, and two heat-conducting plates 10 are located the inside of inside lining 2.

Specifically, the explosion-proof box 1 is a metal box, and a sealing element 11 is fixedly connected to the top of the dry powder filling cavity.

Specifically, a bottom plate of the explosion-proof box 1 is fixedly provided with a supporting seat for supporting the lining 2, and the top surface of the supporting seat is attached with a shock-absorbing rubber pad.

A conduit 7 for leading out the wires of the lining 2 is fixedly arranged between one side plate of the explosion-proof box 1 and one side plate of the lining 2 in a penetrating way.

The lithium battery 3 is installed in the inner lining 2 of the high-temperature protection structure of the lithium battery.

The working process of the utility model is as follows:

as shown in fig. 1-4, when the device is used, the lithium battery 3 is installed in the lining 2, two side surfaces of the lithium battery 3 contact with the heat conducting plate 10 of the heat conducting mechanism, the explosion-proof cover 4 is fixedly installed on the top of the explosion-proof box 1, the fan 5 of the device is electrically connected with the lithium battery 3, and the control switch is installed, when the lithium battery 3 works, the generated heat can be transferred to the heat conducting column 8 from the heat conducting plate 10, and then is subjected to heat exchange with the air outside the explosion-proof box 1 through the heat conducting column 8, so as to achieve the purpose of auxiliary cooling and heat dissipation, and at the same time, the fan 5 can work, when the fan 5 works, the external air is blown into the lining 2, and the gas with higher temperature inside the lining 2 is blown out through the heat dissipation holes 13, so as to further ensure the heat dissipation capability of the lithium battery 3, a dry powder filling cavity is formed between the lining 2 and the explosion-proof box 1 of the device, and the dry powder filling cavity is filled with a dry powder filling layer 9, when lithium cell 3 explodes the spontaneous combustion, explosion-proof box 1 can effectually avoid taking place the condition that splashes this moment, and inside lining 2 is damaged after, and the dry powder of dry powder filling intracavity can contact with lithium cell 3, is favorable to putting out of naked light, greatly reduced 3 spontaneous combustion of lithium cell to people's life and property cause the emergence of the loss condition, the device structure is ingenious, security when having improved 3 uses of lithium cell, facilitate promotion.

The foregoing shows and describes the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a lithium cell high temperature protective structure, includes explosion-proof box (1), its characterized in that: the top surface fixed mounting of explosion-proof box (1) bottom plate has inside lining (2), form dry powder between inside lining (2) and the explosion-proof box (1) and fill the chamber, dry powder fills the intracavity and is filled dry powder filling layer (9), the top fixed mounting of explosion-proof box (1) has explosion-proof cover (4), the top surface fixed mounting of explosion-proof cover (4) has fan (5), air-out end fixed cup joint air-supply line (6) of fan (5), the one end that fan (5) were kept away from in air-supply line (6) is passed explosion-proof cover (4) and is extended to the inside of explosion-proof box (1), be provided with on the both sides board that explosion-proof box (1) is parallel to each other and be used for inside lining (2) supplementary radiating heat conduction mechanism.

2. The high temperature protection structure of a lithium battery as claimed in claim 1, wherein: heat conduction mechanism includes two heat-conducting plates (10) and many heat conduction post (8), two the equal fixedly connected with in a side of heat-conducting plate (10) many heat conduction post (8), the outside that a curb plate that inside lining (2) and explosion-proof box (1) were run through to the one end of heat conduction post (8) on two heat-conducting plates (10) extended to explosion-proof box (1), two heat-conducting plate (10) are located the inside of inside lining (2).

3. The high temperature protection structure of a lithium battery as claimed in claim 1, wherein: the explosion-proof box (1) is a metal box, and a sealing piece (11) is fixedly connected to the top of the dry powder filling cavity.

4. The high temperature protection structure of a lithium battery as claimed in claim 1, wherein: the bottom surface of the explosion-proof cover (4) is fixedly connected with a dry powder box (12), and a dry powder filling layer (9) is also filled in the dry powder box (12).

5. The high temperature protection structure of a lithium battery as claimed in claim 1, wherein: the bottom plate of explosion-proof box (1) is last fixed mounting to be used for the supporting seat that supports inside lining (2), and the attached rubber gasket that installs of top surface of supporting seat.

6. The high temperature protection structure of a lithium battery as claimed in claim 1, wherein: and a conduit (7) for leading out the wires of the lining (2) is fixedly arranged between one side plate of the explosion-proof box (1) and one side plate of the lining (2) in a penetrating way.

7. The high temperature protection structure of a lithium battery as claimed in claim 1, wherein: a plurality of heat dissipation holes (13) are formed in the bottom plate of the explosion-proof box (1), and the explosion-proof cover (4) is connected with the explosion-proof box (1) through screws.