CN218334059U

CN218334059U - Battery case with good sealing structure

Info

Publication number: CN218334059U
Application number: CN202221025765.7U
Authority: CN
Inventors: 王建宇; 李鑫
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-01-17
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a battery case with good seal structure, which comprises a housin, the casing top is equipped with the apron, be equipped with solid fixed ring in the apron, be equipped with the sealing washer between apron lateral wall and the solid fixed ring, the screw hole that three equidistance was arranged is seted up to apron both sides lower extreme, be equipped with on the casing with screw hole assorted thread groove, the casing passes through bolt fixed connection with the apron. The battery case is simple in structure and good in sealing effect, the connection structure between the cover body and the case body is stable, the battery is prevented from being damped, and the service life of the battery is effectively prolonged.

Description

Battery case with good sealing structure

Technical Field

The utility model relates to a lithium battery shell technical field specifically is a battery case with good seal structure.

Background

With the development of society, the application of communication equipment is more and more extensive, and lithium cell is the energy storage power supply of new generation, by lithium metal or lithium alloy as the negative electrode material, widely use in present industrial production, especially have very big application prospect in fields such as new energy automobile, electric wire netting energy storage, special purpose vehicle, communication base station, etc. lithium cell is with lithium metal or lithium alloy as the negative electrode material, use the battery of nonaqueous electrolyte solution, therefore this kind of battery is also called lithium metal battery, different from other batteries, lithium cell has characteristics such as high charge density, long life and high unit cost.

There is certain drawback in current lithium cell when using, mostly carries out fixed connection through the welded mode between lithium cell casing and the apron, and partial lithium cell casing does not be equipped with seal structure with the apron, when the rosin joint appears between casing and apron, leads to the lithium cell to be corroded by the humidity when using easily, influences the result of use of lithium cell, has reduced the life of lithium cell. To this end, we propose a battery case having a good sealing structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery case with good seal structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a battery case with good seal structure, includes the casing, the casing top is equipped with the apron, be equipped with solid fixed ring in the apron, be equipped with the sealing washer between apron lateral wall and the solid fixed ring, the screw hole that three equidistance was arranged is seted up to apron both sides lower extreme, be equipped with on the casing with screw hole assorted thread groove, the casing passes through bolt fixed connection with the apron.

Preferably, the fixed ring outside is equipped with the clamp that a plurality of equidistance were arranged, the casing upper end seted up with clamp assorted draw-in groove.

Preferably, a plurality of partition plates which are arranged at equal intervals are arranged in the shell.

Preferably, protection structures are arranged between the partition plates and the inner wall of the shell.

Preferably, the protective structure is a sponge protective groove.

Preferably, the bolt is provided with a cross-shaped sinking groove or an inner hexagonal sinking groove.

Preferably, a positive terminal is arranged on one side of the upper end of the cover plate, and a negative terminal is arranged on one side, far away from the positive terminal, of the upper end of the cover plate.

Preferably, an explosion-proof valve is arranged between the positive terminal and the negative terminal.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of battery case with good seal structure, gu fixed ring carries out the centre gripping with the apron lateral wall to the casing upper end, inside the clamp entered into the draw-in groove, through the mutually supporting between clamp and the draw-in groove, make the location that can be accurate between casing and the apron, the sealing washer seals the contact surface between casing and the apron, thereby the effectual sealed effect between casing and the apron that has ensured, the phenomenon of having avoided the battery to wet takes place, can carry out fixed connection to casing and apron through the bolt, make can be stable between casing and the apron be connected. The battery case is simple in structure and good in sealing effect, the connection structure between the cover body and the case body is stable, the battery is prevented from being damped, and the service life of the battery is effectively prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of part A of the present invention;

in the figure: the explosion-proof valve comprises a shell 1, a cover plate 2, a fixing ring 3, a sealing ring 4, a hoop 5, a clamping groove 6, a threaded hole 7, a threaded groove 8, a bolt 9, a partition plate 10, sponge 11, a positive terminal 12, a negative terminal 13 and an explosion-proof valve 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a battery case with good seal structure, includes

casing

1, 1 top of casing is equipped with apron 2, be equipped with solid fixed ring 3 in the apron 2, be equipped with sealing washer 4 between apron 2 lateral wall and the solid fixed ring 3, gu fixed ring 3 carries out the centre gripping with apron 2 lateral wall to casing 1 upper end, reaches the purpose of apron 2 and casing 1 initial joint, and sealing washer 4 seals the contact surface between casing 1 and the apron 2 to effectual sealed effect between casing 1 and the apron 2 of having ensured has avoided the phenomenon that the battery wets to take place, apron 2 both sides lower extreme sets up the screw hole 7 that three equidistance was arranged, be equipped with on the casing 1 with screw hole 7 assorted thread groove 8, casing 1 and apron 2 pass through bolt 9 fixed connection, bolt 9 pegs graft inside screw hole 7 and thread groove 8, be equipped with screw hole 7 and thread groove 8 assorted screw thread on the bolt 9, thereby carry out fixed connection with casing 1 and apron 2 through bolt 9.

Further say, 3 outsides of solid fixed ring are equipped with the clamp 5 that a plurality of equidistance were arranged, 1 upper end of casing offer with clamp 5 assorted draw-in groove 6, when casing 1 is connected with apron 2, press the apron 2, make clamp 5 enter into inside draw-in groove 6, through the mutually supporting between clamp 5 and the draw-in groove 6 to make the location that can be accurate between casing 1 and the apron 2.

Furthermore, be equipped with the baffle 10 that a plurality of equidistance were arranged in the casing 1, baffle 10 is to 1 inside a plurality of independent spaces of cutting apart into of casing to make core package can be solitary putting, avoid influencing each other between the core package, mentioned the safety in utilization of battery.

Further, all be equipped with protection architecture 11 between baffle 10 and the casing 1 inner wall, protection architecture 11 is to the baffle 10 each other to and insulate between baffle 10 and the casing 1, thereby avoid baffle 10 and casing to receive the phenomenon emergence of electrolyte corruption.

Further, protection architecture 11 is the sponge guard slot, and the sponge has elasticity, and when the battery rocked, the elasticity of sponge can be effectual rocks electric core and cushions, has improved the protection effect to electric core.

Further, a cross-shaped sinking groove or an inner hexagonal sinking groove is formed in the bolt 9, and the cross-shaped sinking groove or the inner hexagonal sinking groove is formed, so that the bolt can be mounted and dismounted through different tools, and convenience in mounting and dismounting the bolt 9 is improved.

Further, 2 upper end one sides of apron are equipped with

positive terminal

12, 2 upper ends of apron keep away from positive terminal 12 one side and are equipped with negative terminal 13, through positive terminal 12 and negative terminal 13, can carry out normal live working with the battery.

Furthermore, an explosion-proof valve 14 is arranged between the positive terminal 12 and the negative terminal 13, and the safety of the battery is effectively improved due to the arrangement of the explosion-proof valve 14.

Specifically, the utility model discloses in, gu fixed ring 3 carries out the centre gripping with 2 lateral walls of apron to 1 upper end of casing, inside clamp 5 enters into draw-in groove 6, through the mutually supporting between clamp 5 and draw-in groove 6, make can accurate location between casing 1 and the apron 2, sealing washer 4 seals the contact surface between casing 1 and the apron 2, thereby the effectual sealed effect between casing 1 and the apron 2 of having ensured, the phenomenon of having avoided the battery to wet takes place, bolt 9 pegs graft inside screw hole 7 and thread groove 8, be equipped with on the bolt 9 with

screw hole

7 and 8 assorted screw threads of thread groove, thereby can carry out fixed connection to casing 1 and apron 2 through bolt 9, make can be stable be connected between casing 1 and the apron 2.

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

Claims

1. A battery case having a good sealing structure, comprising a case (1), characterized in that: casing (1) top is equipped with apron (2), be equipped with solid fixed ring (3) in apron (2), be equipped with between apron (2) lateral wall and the solid fixed ring (3) sealing washer (4), screw hole (7) that three equidistance was arranged are seted up to apron (2) both sides lower extreme, be equipped with on casing (1) with screw hole (7) assorted thread groove (8), casing (1) passes through bolt (9) fixed connection with apron (2).

2. The battery case having a good sealing structure according to claim 1, wherein: the solid fixed ring (3) outside is equipped with clamp (5) that a plurality of equidistance were arranged, casing (1) upper end seted up with clamp (5) assorted draw-in groove (6).

3. The battery case having a good sealing structure according to claim 1, wherein: a plurality of partition plates (10) which are arranged at equal intervals are arranged in the shell (1).

4. A battery case having a good sealing structure according to claim 3, wherein: and protective structures (11) are arranged between the partition plate (10) and between the partition plate (10) and the inner wall of the shell (1).

5. The battery case having a good sealing structure according to claim 4, wherein: the protection structure (11) is a sponge protection groove.

6. The battery case having a good sealing structure according to claim 1, wherein: the bolt (9) is provided with a cross-shaped sinking groove or an inner hexagonal sinking groove.

7. The battery case having a good sealing structure according to claim 1, wherein: the battery cover is characterized in that a positive terminal (12) is arranged on one side of the upper end of the cover plate (2), and a negative terminal (13) is arranged on one side, far away from the positive terminal (12), of the upper end of the cover plate (2).

8. The battery case having a good sealing structure according to claim 7, wherein: and an explosion-proof valve (14) is arranged between the positive terminal (12) and the negative terminal (13).