CN219419267U

CN219419267U - Lithium ion sealing ring

Info

Publication number: CN219419267U
Application number: CN202320934178.8U
Authority: CN
Inventors: 朱进礼; 白科; 孙玉龙; 黄亚晖; 陈富源; 姚海飞
Original assignee: Jiangxi ANC New Energy Technology Co Ltd
Current assignee: Jiangxi ANC New Energy Technology Co Ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-07-25
Anticipated expiration: 2033-04-24

Abstract

The utility model discloses a lithium ion sealing ring, which belongs to the technical field of lithium ion batteries and comprises a shell, wherein a top cover is arranged at the top of an inner cavity of the shell, the top end of the top cover penetrates through the shell and extends to the outside of the shell, the inner cavity of the shell is provided with a sealing ring, the sealing ring is movably connected with the inner cavity of the shell, an ion battery body is arranged in the inner cavity of the shell, the top end of the ion battery body sequentially penetrates through the sealing ring and the top cover and extends to the top of the inner side of the top cover, a protection pad is arranged at the top of the sealing ring, and the bottom of the protection pad is attached to the top of the sealing ring; through the setting of sealing washer, owing to the sealing washer is the coarse setting with lithium ion battery body contact surface, so when carrying out laser welding, because the coarse setting on sealing washer surface has reduced the laser emission when welding to improve welded production efficiency and welding quality, avoid the condition of laser lens damage because of laser reflection leads to.

Description

Lithium ion sealing ring

Technical Field

The utility model relates to the technical field of lithium ion batteries, in particular to a lithium ion sealing ring.

Background

Lithium ion battery: is a secondary battery that mainly relies on lithium ions moving between a positive electrode and a negative electrode, li+ being inserted and extracted back and forth between the two electrodes during charge and discharge: during charging, li+ is deintercalated from the positive electrode, and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; in contrast, when discharging, the battery generally adopts a material containing lithium element as an electrode, which is representative of modern high-performance batteries, and the lithium ion battery sealing ring is one of important components of the lithium ion battery.

When the surface of the sealing ring is smooth and has no rough treatment, the laser welding power of the actual laser is reduced due to the phenomenon of high reflection of laser rays when the sealing ring is welded with the lithium ion battery, the production efficiency and the welding quality of the welding are greatly reduced, and the damage of a laser lens caused by laser reflection is increased, so that the lithium ion sealing ring is required to be provided.

Disclosure of Invention

The utility model aims to provide a lithium ion sealing ring, which has the advantages of increasing the roughness of the surface of the sealing ring, reducing the laser emission during welding, improving the production efficiency and the welding quality of welding, and avoiding the damage of a laser lens caused by laser reflection so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lithium ion sealing washer, includes the casing, the top of casing inner chamber is provided with the top cap, the top of top cap runs through the casing and extends to the outside of casing, the inner chamber of casing is provided with the sealing washer, the inner chamber swing joint of sealing washer and casing, the inner chamber of casing is provided with the ion battery body, the top of ion battery body runs through sealing washer and top cap in proper order and extends to the top of top cap inboard.

Preferably, a protection pad is arranged at the top of the sealing ring, the bottom of the protection pad is attached to the top of the sealing ring, and the top of the protection pad is attached to the top of the inner side of the top cover.

Preferably, the bottom of sealing washer just is the coarse setting with ion battery body laminating department, the bottom and the ion battery body welding of sealing washer.

Preferably, the round hole has been seted up at the top of casing, the top of top cap runs through the round hole and extends to the outside of round hole, the inner chamber of round hole is provided with the rubber circle, the inboard of rubber circle is laminated with the top on top cap surface.

Preferably, an elastic connecting piece is arranged at the top of the inner side of the top cover, and the bottom of the elastic connecting piece is attached to the top end of the ion battery body.

Preferably, a concave cavity matched with the top end of the ion battery body is formed in the inner side of the sealing ring, and the sealing ring is sleeved on the top of the ion battery body.

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

according to the utility model, due to the arrangement of the sealing ring, the contact surface of the sealing ring and the lithium ion battery body is arranged in a rough way, so that when laser welding is carried out, the laser emission during welding is reduced due to the rough arrangement of the surface of the sealing ring, thereby improving the production efficiency and the welding quality of welding and avoiding the condition of laser lens damage caused by laser reflection.

Drawings

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

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic cross-sectional elevation view of the present utility model;

FIG. 4 is a schematic view of the bottom structure of the top cover of the present utility model;

FIG. 5 is a schematic view of the seal ring of the present utility model;

FIG. 6 is a schematic view of the rubber ring structure of the utility model;

FIG. 7 is a schematic view of the elastic connector of the present utility model.

In the figure: 1. a housing; 2. a top cover; 3. a seal ring; 4. an ion battery body; 5. a protective pad; 6. a rubber ring; 7. an elastic connection member.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present utility model provides a technical solution: the utility model provides a lithium ion sealing ring, including casing 1, the top of casing 1 inner chamber is provided with top cap 2, the top of top cap 2 runs through casing 1 and extends to the outside of casing 1, the inner chamber of casing 1 is provided with sealing washer 3, sealing washer 3 and the inner chamber swing joint of casing 1, the inner chamber of casing 1 is provided with ion battery body 4, the top of ion battery body 4 runs through sealing washer 3 and top cap 2 in proper order and extends to the top of top cap 2 inboard, the bottom of sealing washer 3 and with ion battery body 4 laminating department be coarse setting, the bottom of sealing washer 3 and ion battery body 4 welding;

through the setting of sealing washer 3, owing to sealing washer 3 and lithium ion battery body 4 contact surface are the coarse setting, so when carrying out laser welding, because the coarse setting on sealing washer 3 surface, reduced the laser emission when welding to improve welded production efficiency and welding quality, avoid the condition of laser lens damage because of laser reflection leads to.

Referring to fig. 1-7, the top of the sealing ring 3 is provided with a protection pad 5, the bottom of the protection pad 5 is attached to the top of the sealing ring 3, the top of the protection pad 5 is attached to the top of the inner side of the top cover 2, the sealing ring 3 can be protected, the top of the sealing ring 3 is prevented from being in direct contact with the inner side of the top cover 2, abrasion to the surface of the sealing ring 3 is avoided, and the service life of the sealing ring 3 is prolonged.

The round hole has been seted up at the top of casing 1, and the top of top cap 2 runs through the round hole and extends to the outside of round hole, and the inner chamber of round hole is provided with rubber circle 6, and the inboard of rubber circle 6 is laminated with the top on top cap 2 surface, can seal the junction of top cap 2 and casing 1, prevents that external moisture from getting into through the gap of top cap 2 and casing 1 junction to lead to the fact the influence to lithium ion battery body 4.

The top of top cap 2 inboard is provided with elastic connection spare 7, and elastic connection spare 7's bottom is laminated with the top of ion battery body 4, can make the top of lithium ion battery body 4 firmly laminate with the top of top cap 2 inboard through elastic connection spare 7, makes lithium ion battery body 4 and top cap 2 be connected firmly, facilitate the use, and the cavity with ion battery body 4 top assorted is seted up to the inboard of sealing washer 3, and sealing washer 3 cover is established at the top of ion battery body 4, and sealing washer 3 of being convenient for seals lithium ion battery body 4, just has the normal use of lithium ion battery body 4.

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

Claims

1. The utility model provides a lithium ion sealing washer, includes casing (1), its characterized in that: the top of casing (1) inner chamber is provided with top cap (2), the top of top cap (2) runs through casing (1) and extends to the outside of casing (1), the inner chamber of casing (1) is provided with sealing washer (3), sealing washer (3) and the inner chamber swing joint of casing (1), the inner chamber of casing (1) is provided with ion battery body (4), the top of ion battery body (4) runs through sealing washer (3) and top cap (2) in proper order and extends to the inboard top of top cap (2).

2. A lithium-ion seal ring as defined in claim 1, wherein: the top of sealing washer (3) is provided with protection pad (5), the bottom of protection pad (5) is laminated with the top of sealing washer (3), the top of protection pad (5) is laminated with the top of top cap (2) inboard.

3. A lithium-ion seal ring as defined in claim 2, wherein: the bottom of sealing washer (3) just is the coarse setting with ion battery body (4) laminating department, the bottom of sealing washer (3) and ion battery body (4) welding.

4. A lithium-ion seal ring as defined in claim 3, wherein: the top of casing (1) has seted up the round hole, the top of top cap (2) runs through the round hole and extends to the outside of round hole, the inner chamber of round hole is provided with rubber circle (6), the inboard of rubber circle (6) is laminated with the top on top cap (2) surface.

5. The lithium-ion seal ring of claim 4, wherein: the top of top cap (2) inboard is provided with elastic connection spare (7), the bottom of elastic connection spare (7) is laminated with the top of ion battery body (4).

6. The lithium-ion seal ring of claim 5, wherein: the inner side of the sealing ring (3) is provided with a concave cavity matched with the top end of the ion battery body (4), and the sealing ring (3) is sleeved on the top of the ion battery body (4).