CN220358177U

CN220358177U - A highly safe lithium battery

Info

Publication number: CN220358177U
Application number: CN202321658430.3U
Authority: CN
Inventors: 张冰; 董宇
Original assignee: Jiangsu Jibairui Energy Co ltd
Current assignee: Jiangsu Jibairui Energy Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2024-01-16
Anticipated expiration: 2033-06-27

Abstract

The utility model discloses a lithium battery with high safety, which includes a lithium battery casing, a sealing cover, a lithium battery body and a heat dissipation fin. The sealing cover is fixedly installed on the top of the lithium battery casing, and the front and rear of the lithium battery casing are Heat dissipation fins are fixedly installed on the two end walls, a second heat dissipation hole is opened on the top of the sealing cover, a buffer plate is fixedly connected to one end of the telescopic rod, and a buffer spring is installed on the telescopic rod. The utility model is provided with heat dissipation fins, a first thermally conductive silica gel sheet and a second thermally conductive silica gel sheet. The heat dissipation fins are provided on the front and rear sides of the lithium battery body. The heat generated by the lithium battery body can be dissipated through the heat dissipation fins. The first thermally conductive silicone sheet and the second thermally conductive silicone sheet can absorb and conduct the heat generated by the lithium battery body, and discharge it to the outside of the lithium battery shell through the first heat dissipation hole and the second heat dissipation hole, effectively realizing rapid heat dissipation. , greatly improving the safety of the lithium battery itself.

Description

High lithium cell of security

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery with high safety.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution, which is made of lithium metal or lithium alloy as a positive/negative electrode material, and therefore, such batteries are also called lithium metal batteries, which are one of the most important technologies in the field of energy storage. The method has wide application in the fields of electric tools and electric automobiles.

The existing lithium battery is poor in heat dissipation performance in use, because the lithium battery can generate higher heat when in use, and the internal heat is too high to cause faults due to the overheating condition, so that the battery health is affected, even open fire is caused under serious conditions, and explosion is caused, for example, a high heat dissipation performance lithium battery component disclosed by the application number CN210142669U, the heat dissipation mode adopted in the patent is to dissipate heat through the first heat dissipation fan body and the second heat dissipation fan body which all comprise at least three independent miniature heat dissipation fans, but the heat dissipation fans themselves are required to provide kinetic energy by means of electric energy, so that the heat dissipation fans themselves are inconvenient to emit heat when in work, the heat dissipation effect of the lithium battery is poor, and the safety is low.

Therefore, it is necessary to invent a lithium battery with high safety to solve the above problems.

Disclosure of Invention

The utility model aims to provide a lithium battery with high safety, which solves the problems of poor heat dissipation performance and low safety in use in the technology.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a lithium cell that security is high, includes lithium cell shell, sealed lid, lithium cell body and radiating fin, the top fixed mounting of lithium cell shell has sealed lid, the inside of lithium cell shell is provided with the lithium cell body, fixed mounting has radiating fin on the front and back both ends wall of lithium cell shell, the bottom fixed mounting of lithium cell shell has first heat conduction silica gel piece, first louvre has been seted up to the bottom of lithium cell shell, the bottom fixed mounting of sealed lid has the second heat conduction silica gel piece, the second louvre has been seted up at the top of sealed lid, both ends inner wall fixedly connected with telescopic link around the lithium cell shell, the one end fixedly connected with buffer board of telescopic link, the cover is provided with buffer spring on the telescopic link.

Preferably, the lithium battery shell is in clamping connection with the sealing cover, and the lithium battery shell is fixedly connected with the sealing cover through bolts at the left end and the right end, so that the lithium battery shell is tightly connected with the sealing cover.

Preferably, the rear end of one side of the lithium battery shell is connected with a positive terminal, the front end of the positive terminal is provided with a negative terminal, and the positive terminal, the negative terminal and the lithium battery body are electrically connected, so that the current transmission of the lithium battery body can be ensured by the positive terminal and the negative terminal.

Preferably, a plurality of radiating fins are arranged, the radiating fins are in rectangular uniform arrays, and the radiating fins are mutually and centrally symmetrical relative to the lithium battery shell.

Preferably, the first heat conduction silica gel piece is rectangular structural design, the first heat conduction silica gel piece adopts the silica gel material to make for the heat that first heat conduction silica gel piece produced the lithium cell body can absorb the conduction.

Preferably, a first heat dissipation hole is formed in the lower portion of the first heat conduction silica gel sheet, a plurality of first heat dissipation holes are formed in the first heat dissipation hole, and the first heat dissipation holes are distributed in a rectangular uniform array mode, so that the first heat dissipation holes can emit heat absorbed by the first heat conduction silica gel sheet.

Preferably, the second heat conduction silica gel piece is rectangular in design, and the second heat dissipation hole is formed in the upper portion of the second heat conduction silica gel piece, so that the second heat conduction silica gel piece can absorb and conduct heat generated by the lithium battery body, and the absorbed heat is dissipated through the second heat dissipation hole.

Preferably, the buffer plate sets up both ends around the inside of lithium cell shell, the buffer plate is provided with 2, mutual central symmetry between the buffer plate about the lithium cell shell for the buffer plate can cushion lithium cell body.

In the technical scheme, the utility model has the technical effects and advantages that:

1. through the arrangement of the radiating fins, the first heat-conducting silica gel piece and the second heat-conducting silica gel piece, the radiating fins are arranged on the front side and the rear side of the lithium battery body, heat generated by the lithium battery body can be led out through the radiating fins, then the first heat-conducting silica gel piece and the second heat-conducting silica gel piece can absorb and conduct the heat generated by the lithium battery body, and the heat is discharged to the outside of the lithium battery shell through the first radiating holes and the second radiating holes, so that the rapid heat emission is effectively realized, and the use safety of the lithium battery body is greatly improved;

2. through the setting of buffer board, set up the buffer board in the inside front and back both sides of lithium cell shell, and be connected with the telescopic link between buffer board and the lithium cell shell inner wall, and the cover is equipped with reset spring on the telescopic link, so when the lithium cell body was placed inside the lithium cell shell, when external force was applyed on the lithium cell shell, the setting of buffer board can provide the cushioning effect to the lithium cell body, and then effectually prevent the phenomenon that the lithium cell body atress took place to warp to the compressive property of lithium cell body has been improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of an exploded perspective view of a lithium battery case and a sealing cover according to the present utility model;

FIG. 3 is a schematic diagram of a first heat dissipating structure according to the present utility model;

fig. 4 is a schematic perspective view of a first heat-conducting silicone sheet according to the present utility model;

FIG. 5 is a schematic diagram of a second heat dissipating structure according to the present utility model;

FIG. 6 is a schematic perspective view of a baffle according to the present utility model;

fig. 7 is an enlarged perspective view of fig. 6 a according to the present utility model.

Reference numerals illustrate:

1. a lithium battery case; 2. sealing cover; 3. a positive terminal; 4. a negative electrode binding post; 5. a lithium battery body; 6. a heat radiation fin; 7. a first thermally conductive silicone sheet; 8. a first heat radiation hole; 9. a second thermally conductive silicone sheet; 10. a second heat radiation hole; 11. a telescopic rod; 12. a buffer plate; 13. and a buffer spring.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The utility model provides a lithium battery with high safety as shown in figures 1-7, which comprises a lithium battery shell 1, a sealing cover 2, a lithium battery body 5 and radiating fins 6, wherein the sealing cover 2 is fixedly arranged at the top of the lithium battery shell 1, the lithium battery body 5 is arranged in the lithium battery shell 1, the radiating fins 6 are fixedly arranged on the front end wall and the rear end wall of the lithium battery shell 1, a first heat-conducting silica gel sheet 7 is fixedly arranged at the bottom of the lithium battery shell 1, a first heat-radiating hole 8 is formed in the bottom of the lithium battery shell 1, a second heat-conducting silica gel sheet 9 is fixedly arranged at the bottom of the sealing cover 2, a second heat-radiating hole 10 is formed in the top of the sealing cover 2, telescopic rods 11 are fixedly connected to the inner walls of the front end and the rear end of the lithium battery shell 1, buffer plates 12 are fixedly connected to the front end and the rear end of the lithium battery shell 1, the buffer plates 12 are arranged at the front end and the rear end of the lithium battery shell 1, the buffer plates 12 are symmetrical relative to the lithium battery shell 1, and buffer springs 13 are sleeved on the telescopic rods 11.

The lithium battery shell 1 is connected with the sealing cover 2 in a clamping way, the lithium battery shell 1 is fixedly connected with the sealing cover 2 through bolts at the left end and the right end, the rear end of one side of the lithium battery shell 1 is connected with the positive terminal 3, the front end of the positive terminal 3 is provided with the negative terminal 4, and the positive terminal 3, the negative terminal 4 and the lithium battery body 5 are electrically connected.

The radiating fins 6 are arranged in a plurality of ways, the radiating fins 6 are uniformly distributed in a rectangular mode, the radiating fins 6 are mutually and centrally symmetrical relative to the lithium battery shell 1, the first heat-conducting silica gel piece 7 is formed by rectangular structural design, the first heat-conducting silica gel piece 7 is made of silica gel materials, the first radiating holes 8 are formed in the lower portion of the first heat-conducting silica gel piece 7, the first radiating holes 8 are formed in a plurality of ways, the first radiating holes 8 are uniformly distributed in a rectangular mode, the second heat-conducting silica gel piece 9 is formed in a rectangular mode, and the second radiating holes 10 are formed in the upper portion of the second heat-conducting silica gel piece 9.

The working principle of the utility model is as follows:

referring to fig. 1-7 of the specification, when the device is used, firstly, the lithium battery body 5 is placed in the lithium battery shell 1, so that the positive terminal 3, the negative terminal 4 and the lithium battery body 5 are electrically connected, the sealing cover 2 is covered on the top of the lithium battery shell 1, then the lithium battery shell 1 and the lithium battery body 5 are locked and fixed through bolts, and then the lithium battery shell 1 is installed at a proper position for use, and when the lithium battery body 5 is used, a large amount of heat is generated, so that the heat in the lithium battery shell 1 must be discharged in time;

referring to the description of fig. 1-7, when the device is used, when the heat of the lithium battery body 5 needs to be discharged, the heat generated by the lithium battery body 5 can be led out through the radiating fins 6 at the front end and the rear end of the lithium battery body 5, the heat generated by the lithium battery body 5 can be absorbed and conducted through the first heat conducting silica gel sheets 7 and the second heat conducting silica gel sheets 9 at the upper end and the lower end of the lithium battery body 5, and the heat generated by the lithium battery body 5 can be discharged to the outside of the lithium battery shell 1 through the first heat radiating holes 8 and the second heat radiating holes 10, so that the rapid heat emission is effectively realized, the use safety of the lithium battery body 5 is greatly improved, meanwhile, when the lithium battery body 5 is placed in the lithium battery shell 1, the buffer effect can be provided when the external force is applied to the lithium battery body 5 through the arrangement of the buffer plate 12, and the phenomenon that the lithium battery body 5 is deformed under the stress is effectively prevented, and the service life of the lithium battery body 5 is effectively prolonged.

Claims

1. The utility model provides a lithium cell that security is high, includes lithium cell shell (1), sealed lid (2), lithium cell body (5) and radiating fin (6), its characterized in that: the lithium battery pack is characterized in that a sealing cover (2) is fixedly arranged at the top of the lithium battery pack (1), a lithium battery body (5) is arranged in the lithium battery pack (1), radiating fins (6) are fixedly arranged on the front end wall and the rear end wall of the lithium battery pack (1), a first heat-conducting silica gel sheet (7) is fixedly arranged at the bottom of the lithium battery pack (1), a first heat-conducting hole (8) is formed in the bottom of the lithium battery pack (1), a second heat-conducting silica gel sheet (9) is fixedly arranged at the bottom of the sealing cover (2), a second heat-conducting hole (10) is formed in the top of the sealing cover (2), telescopic rods (11) are fixedly connected to the inner walls of the front end and the rear end of the lithium battery pack (1), buffer plates (12) are fixedly connected to one ends of the telescopic rods (11), and buffer springs (13) are sleeved on the telescopic rods (11).

2. The high-safety lithium battery according to claim 1, wherein: the lithium battery shell (1) is connected with the sealing cover (2) in a clamping mode, and the lithium battery shell (1) is fixedly connected with the sealing cover (2) through bolts at the left end and the right end.

3. The high-safety lithium battery according to claim 2, wherein: the lithium battery is characterized in that a positive terminal (3) is connected to the rear end of one side of the lithium battery shell (1), a negative terminal (4) is arranged at the front end of the positive terminal (3), and the positive terminal (3), the negative terminal (4) and the lithium battery body (5) are electrically connected.

4. The high-safety lithium battery according to claim 1, wherein: the heat dissipation fins (6) are arranged in a plurality, the heat dissipation fins (6) are in rectangular uniform arrays, and the heat dissipation fins (6) are mutually and centrally symmetrical with respect to the lithium battery shell (1).

5. The high-safety lithium battery according to claim 1, wherein: the first heat conduction silica gel piece (7) is formed by rectangular structural design, and the first heat conduction silica gel piece (7) is made of silica gel materials.

6. The high-safety lithium battery according to claim 5, wherein: the heat-conducting silicon wafer is characterized in that first heat-conducting silicon wafers (7) are arranged below the heat-conducting silicon wafers (8), a plurality of first heat-conducting holes (8) are formed, and the first heat-conducting holes (8) are distributed in a rectangular uniform array.

7. The high-safety lithium battery according to claim 1, wherein: the second heat conduction silica gel piece (9) is formed by rectangular design, and a second heat dissipation hole (10) is formed in the upper portion of the second heat conduction silica gel piece (9).

8. The high-safety lithium battery according to claim 1, wherein: the buffer plates (12) are arranged at the front end and the rear end of the interior of the lithium battery shell (1), 2 buffer plates (12) are arranged, and the buffer plates (12) are mutually symmetrical with respect to the lithium battery shell (1).