CN213636082U

CN213636082U - Lithium battery with good thermal stability

Info

Publication number: CN213636082U
Application number: CN202022863318.6U
Authority: CN
Inventors: 朱华锋; 马至乐; 胡应有
Original assignee: Sichuan Longxingda New Energy Co ltd
Current assignee: Sichuan Longxingda New Energy Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-06
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a lithium battery that thermal stability is good, including casing, electrolyte, negative pole end and micro spring, the inboard of casing is provided with interior steel sheet, and the inboard of interior steel sheet is provided with built-in pad to be provided with thermal-insulated chamber between interior steel sheet and the built-in pad, the surface of interior steel sheet is provided with the heat absorption rubber cement, the inside of built-in pad is provided with the rubber protection pad, and the inside of rubber protection pad is provided with electrolyte to the upper and lower both sides of electrolyte are provided with the sealing washer, the top middle part of top piece is connected with the positive terminal, and the surface of top piece is connected with spacing lug. This lithium cell that thermal stability is good is provided with top piece, spacing lug and miniature spring, and the connected mode of top piece and casing is threaded connection, and the convenience makes the spacing lug on top piece surface make things convenient for the dismantlement of top piece and casing in miniature spring's use through rotating the top piece, and then makes things convenient for the change of this lithium cell inside electrolyte.

Description

Lithium battery with good thermal stability

Technical Field

The utility model relates to a relevant technical field of lithium cell specifically is a lithium cell that thermal stability is good.

Background

The lithium battery has wide application, and is seen everywhere in our life, and when the lithium battery is used, the lithium battery can be divided into different types according to different voltages, and for the existing lithium battery, partial defects still exist, such as:

when the existing lithium battery is used, the internal structure of the lithium battery is simple, the thermal stability is poor, the internal electrolyte is not easy to replace, the lithium battery cannot be recycled, the use has limitation, and therefore the lithium battery with good thermal stability is provided so as to solve the problems existing in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell that thermal stability is good to solve above-mentioned background art and propose current lithium cell when using, the inner structure of lithium cell is comparatively simple, and thermal stability is relatively poor, and inside electrolyte is difficult for changing, leads to the lithium cell can not recycle, uses the problem that has the limitation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium battery that thermal stability is good, includes casing, electrolyte, negative pole end and miniature spring, the inboard of casing is provided with interior steel sheet, and the inboard of interior steel sheet is provided with built-in pad to be provided with thermal-insulated chamber between interior steel sheet and the built-in pad, the surface of interior steel sheet is provided with the heat absorption rubber block, the inside of built-in pad is provided with rubber protection pad, and the inside of rubber protection pad is provided with electrolyte to the upper and lower both sides of electrolyte are provided with the sealing washer, the below bottom of casing is provided with the protection shield, and the bottom side mid-mounting of protection shield has the negative pole end, the top of casing is connected with the top piece, and the below of top piece is provided with the elasticity extrusion piece to the lower surface of elasticity extrusion piece is provided with the sticky tape, the top mid-portion of top.

Preferably, the heat absorption rubber block is of a circular ring structure, the heat absorption rubber blocks are uniformly distributed in the heat insulation cavity, the inner diameter of each heat absorption rubber block is matched with the outer diameter of the built-in pad, and the heat absorption rubber blocks are made of silica gel.

Preferably, the surface of the built-in pad is uniformly provided with meshes, the length of the built-in pad is longer than that of the rubber protection pad, and the built-in pad and the rubber protection pad are connected in an adhesive manner.

Preferably, the outer diameter of the sealing ring is equal to the inner diameter of the built-in pad, the inner diameter of the sealing ring is equal to the outer diameter of the rubber protection pad, and the sealing ring and the elastic pressing piece are connected in an adhesion mode.

Preferably, still include the bottom gasket, bottom gasket and top piece all are "T" font structure, and the bottom gasket all with the top piece the connected mode of casing be threaded connection's dismantlement mounting structure to the below symmetry of top piece is provided with group's sticky tape.

Preferably, the limit bump and the top plate form an elastic structure through a micro spring, four elastic structures are arranged on the surface of the top plate at equal angles, and the top plate and the shell form a clamping connection through the limit bump.

Compared with the prior art, the beneficial effects of the utility model are that: the lithium battery with good thermal stability;

(1) the heat absorption rubber block made of the silica gel material can effectively absorb heat generated by the internal work of the lithium battery, so that the heat dissipation effect of the lithium battery is improved;

(2) the built-in pad and the rubber protection pad with meshes uniformly arranged on the surface are arranged, so that the internal structure of the lithium battery can be effectively improved through the built-in pad and the rubber protection pad, and the thermal stability of the lithium battery is further improved;

(3) be provided with top plate, spacing lug and miniature spring, the connected mode of top plate and casing is threaded connection, and the convenience makes the spacing lug on top plate surface make things convenient for the dismantlement of top plate and casing at miniature spring's use through rotating the top plate, and then makes things convenient for the change of this lithium cell inside electrolyte.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

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

FIG. 3 is a schematic view of the top plate of the present invention;

fig. 4 is a schematic view of the structure of the internal pad of the present invention.

In the figure: 1. a housing; 2. an inner steel plate; 3. a thermally insulating cavity; 4. a heat absorbing rubber block; 5. a built-in pad; 501. mesh openings; 6. a rubber protection pad; 7. an electrolyte; 8. a seal ring; 9. a bottom gasket; 10. a protection plate; 11. a negative terminal; 12. a topsheet; 13. an elastic pressing sheet; 14. an adhesive tape; 15. a positive terminal; 16. a limiting bump; 17. a micro-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a lithium battery with good thermal stability comprises a shell 1, an inner steel plate 2, a heat insulation cavity 3, a heat absorption rubber block 4, a built-in pad 5, meshes 501, a rubber protection pad 6, electrolyte 7, a sealing ring 8, a bottom gasket 9, a protection plate 10, a negative electrode end 11, a top plate 12, an elastic extrusion sheet 13, an adhesive tape 14, a positive electrode end 15, a limit lug 16 and a micro spring 17, wherein the inner side of the shell 1 is provided with the inner steel plate 2, the inner side of the inner steel plate 2 is provided with the built-in pad 5, the heat insulation cavity 3 is arranged between the inner steel plate 2 and the built-in pad 5, the surface of the inner steel plate 2 is provided with the heat absorption rubber block 4, the inner part of the built-in pad 5 is provided with the rubber protection pad 6, the inner part of the rubber protection pad 6 is provided with the electrolyte 7, the upper side and the lower side of the electrolyte 7 are provided with the sealing, a top sheet 12 is connected to the upper part of the casing 1, an elastic extrusion sheet 13 is arranged below the top sheet 12, an adhesive tape 14 is arranged on the lower surface of the elastic extrusion sheet 13, a positive terminal 15 is connected to the middle part of the upper part of the top sheet 12, and a limit bump 16 is connected to the surface of the top sheet 12.

The heat absorption rubber block 4 is in a circular ring structure as shown in fig. 1 and fig. 2, the heat absorption rubber block 4 is uniformly distributed in the heat insulation cavity 3, the inner diameter of the heat absorption rubber block 4 is identical to the outer diameter of the built-in pad 5, meanwhile, the heat absorption rubber block 4 is made of silica gel, the heat dissipation effect inside the lithium battery is conveniently improved, meshes 501 are uniformly formed in the surface of the built-in pad 5 as shown in fig. 1 and fig. 4, the length of the built-in pad 5 is longer than that of the rubber protection pad 6, the built-in pad 5 is connected with the rubber protection pad 6 in a bonding mode, the heat stabilization effect of the lithium battery is conveniently improved, the outer diameter of the sealing ring 8 is equal to that of the built-in pad 5 as shown in fig. 1, the inner diameter of the sealing ring 8 is equal to that of the rubber protection pad 6, and the connection mode of the sealing ring 8 and the.

Like in fig. 1 and 3 bottom gasket 9 and top piece 12 all be "T" font structure, and the connection mode of bottom gasket 9 and top piece 12 all with casing 1 is threaded connection's dismantlement mounting structure, and the below symmetry of top piece 12 is provided with 2 groups of sticky tapes 14, made things convenient for the split of bottom gasket 9 and top piece 12 with casing 1, spacing lug 16 constitutes elastic construction through miniature spring 17 and top piece 12, and this elastic construction is provided with four at the equal angle in the surface of top piece 12, and top piece 12 constitutes the block through spacing lug 16 and casing 1 and is connected, improve the stability of being connected between this top piece 12 and the casing 1.

The working principle is as follows: firstly, when the lithium battery is used, the lithium battery is used in a place needing to be used, a heat insulation cavity 3 is arranged inside the lithium battery, annular heat absorption rubber blocks 4 are uniformly arranged inside the heat insulation cavity 3, heat generated by the work of internal electrolyte 7 can be effectively absorbed through the heat absorption rubber blocks 4 made of silica gel, the heat dissipation of the lithium battery is facilitated, meanwhile, the built-in pad 5 with meshes 501 uniformly arranged on the surface is matched, the built-in pad 5 can be conveniently used through a rubber protection pad 6, the stability of the internal structure of the lithium battery is conveniently improved, the heat stability effect of the lithium battery is further improved, and the sealing ring 8 inside the lithium battery can effectively improve the sealing performance of the lithium battery;

the top plate 12 of the lithium battery is in threaded connection with the upper part of the shell 1, so that the top plate 12 and the shell 1 are conveniently detached, the surface of the top plate 12 is in clamping connection with the upper surface of the shell 1 through the micro spring 17 and the limiting bump 16, the mounting stability of the top plate 12 is improved, and the using effect of the device is improved.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a lithium cell that thermal stability is good, includes casing (1), electrolyte (7), negative pole end (11) and miniature spring (17), its characterized in that: an inner steel plate (2) is arranged on the inner side of the shell (1), a built-in pad (5) is arranged on the inner side of the inner steel plate (2), a heat insulation cavity (3) is arranged between the inner steel plate (2) and the built-in pad (5), a heat absorption rubber block (4) is arranged on the surface of the inner steel plate (2), a rubber protection pad (6) is arranged inside the built-in pad (5), an electrolyte (7) is arranged inside the rubber protection pad (6), sealing rings (8) are arranged on the upper side and the lower side of the electrolyte (7), a protection plate (10) is arranged at the bottom of the lower portion of the shell (1), a negative end (11) is arranged in the middle of the bottom side of the protection plate (10), a top plate (12) is connected to the upper portion of the shell (1), an elastic extrusion sheet (13) is arranged below the top plate (12), and an adhesive tape (14, the middle part of the upper part of the top sheet (12) is connected with a positive terminal (15), and the surface of the top sheet (12) is connected with a limiting lug (16).

2. A lithium battery as claimed in claim 1, characterized in that: the heat absorption rubber block (4) is of a circular ring-shaped structure, the heat absorption rubber block (4) is uniformly distributed in the heat insulation cavity (3), the inner diameter of the heat absorption rubber block (4) is matched with the outer diameter of the built-in pad (5), and the heat absorption rubber block (4) is made of silica gel.

3. A lithium battery as claimed in claim 1, characterized in that: the surface of the built-in pad (5) is uniformly provided with meshes (501), the length of the built-in pad (5) is longer than that of the rubber protection pad (6), and the built-in pad (5) is connected with the rubber protection pad (6) in an adhesion mode.

4. A lithium battery as claimed in claim 1, characterized in that: the outer diameter of the sealing ring (8) is equal to the inner diameter of the built-in pad (5), the inner diameter of the sealing ring (8) is equal to the outer diameter of the rubber protection pad (6), and the sealing ring (8) and the elastic extrusion sheet (13) are connected in an adhesion mode.

5. A lithium battery as claimed in claim 1, characterized in that: still include bottom gasket (9), bottom gasket (9) all are "T" font structure with top board (12), and bottom gasket (9) and top board (12) all with the connected mode of casing (1) be threaded connection's dismantlement mounting structure to the below symmetry of top board (12) is provided with 2 groups sticky tape (14).

6. A lithium battery as claimed in claim 1, characterized in that: the limiting convex blocks (16) and the top plate (12) form an elastic structure through micro springs (17), four elastic structures are arranged on the surface of the top plate (12) at equal angles, and the top plate (12) is connected with the shell (1) in a clamping mode through the limiting convex blocks (16).