CN212182381U

CN212182381U - High-efficiency lithium battery sealing ring

Info

Publication number: CN212182381U
Application number: CN202020997218.XU
Authority: CN
Inventors: 谭寒勇
Original assignee: Yichun Gairui New Energy Co ltd
Current assignee: Yichun Gairui New Energy Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-12-18
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses a high-efficient lithium cell sealing washer belongs to battery material technical field, has solved current battery small aluminum sheet and has received the extrusion and easily drop and small aluminum sheet and the angular contact problem that leads to positive negative pole short circuit of battery R, and its technical essential is: including the sealing washer body, the sealing washer body is the cavity ring form, this internal support ring and holding ring of being equipped with of sealing washer, the internal surface at the sealing washer body is all installed to support ring and holding ring, through set up support ring and holding ring in the sealing washer, when receiving the extrusion bottom the sealing washer, support ring and holding ring can play the effect of a position buffering to little aluminum sheet, have reduced the atress degree and the deformation degree of little aluminum sheet, have fixed the position of little aluminum sheet in the lithium cell, have the advantage that prevents that little aluminum sheet from droing and the positive negative pole short circuit of battery.

Description

High-efficiency lithium battery sealing ring

Technical Field

The utility model relates to a battery material technical field specifically relates to a high-efficient lithium cell sealing washer.

Background

With the development of society and the advancement of human civilization, electric power energy is continuously developed, in which a secondary battery having no pollution, a large capacity, a long service life, and the like, replaces a primary battery having a large pollution, a low capacity, and a short service time, in which the unique structure and performance of a lithium battery is widely applied to various fields, such as a notebook computer, a portable power source, an electric tool, and the like, which are typical thereof. The battery safety combined cover cap is the most important safety guarantee part of the lithium battery, wherein the structure of the sealing ring not only influences the sealing effect of the battery, but also causes the scrapping of the battery due to the falling of a laser welding small aluminum sheet in the battery manufacturing and sealing process, and even causes explosion, fire and the like. At present, the lithium battery mainly has the following two defects:

1. the traditional sealing ring is easily extruded by the R angle of the rolling groove when the battery is sealed, so that a small aluminum sheet is deformed or directly falls off, and finally the battery is scrapped.

2. The contact between the aluminum flake dropped from the finished battery and the R corner of the battery can directly cause the short circuit of the positive and negative electrodes of the battery, thereby causing the explosion, fire and other losses of the battery.

Therefore, it is desirable to provide a high-efficiency lithium battery sealing ring, aiming at solving the above problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a purpose provides a high efficiency lithium cell sealing washer to solve the problem 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 high-efficient lithium cell sealing washer, includes the sealing washer body, the sealing washer body is the cavity ring body, sealing washer body internal surface is equipped with support ring and holding ring, the upside of holding ring is equipped with the location arc, the inclination direction of location arc is downward, and the center of location arc is on the center pin of holding ring.

As a further scheme of the utility model, the sealing washer body is the sealing washer base, sealing washer base bottom is equipped with the through-hole, the through-hole is concentric with the sealing washer base, the top of through-hole is the opening district, be equipped with support ring and holding ring in the opening district.

As a further scheme of the utility model, the sealing washer body includes that the sealing washer is gone to the bottom and the sealing washer is gone to the bottom, the bottom that the sealing washer was gone to the bottom is equipped with the through-hole, the through-hole goes to the bottom with the sealing washer concentric, the top of through-hole is the opening district, be equipped with support ring and holding ring in the opening district.

As a further scheme of the utility model, sealing washer bottom side wall upper portion is equipped with interior concave thread portion, sealing washer bottom side wall bottom is equipped with outer convex thread portion, the sealing washer is gone to the bottom and is carried out threaded connection through mutually supporting between interior concave thread portion and the outer convex thread portion with the sealing washer top.

As a further aspect of the present invention, the support ring is a circular ring, the internal surface at the sealing washer body is installed at the top of support ring, the second through-hole has been seted up to the bottom of support ring, the second through-hole is concentric with the support ring, the support ring inboard still is provided with the holding ring, the internal surface at the sealing washer body is installed to one side of holding ring.

As a further proposal of the utility model, the sealing ring base, the supporting ring and the positioning ring are made of plastic.

As a further aspect of the present invention, the seal ring base, the support ring, and the positioning ring are all disposed around the same central shaft.

As a further proposal of the utility model, the upper part of the supporting ring and the upper part of the positioning ring are positioned on the same horizontal plane.

To sum up, compared with the prior art, the embodiment of the utility model has the following beneficial effects:

1. the utility model discloses a set up support ring and holding ring in the sealing washer, when receiving the extrusion bottom the sealing washer, support ring and holding ring can play the effect of a position buffering to the small aluminum sheet, the effectual atress degree and the deformation degree that has reduced the small aluminum sheet, have fixed the position of small aluminum sheet in the lithium cell, prevent that the relative position of small aluminum sheet from taking place the skew, can the positive negative pole short circuit of effectual prevention battery.

2. The utility model discloses a threaded connection between the evagination screw thread portion that the sealing washer goes to the bottom of the indent screw thread portion that is equipped with and the sealing washer upper base were equipped with can be with placing of lithium cell safety in the space that threaded connection formed between the sealing washer goes to the bottom and the sealing washer upper base, and effectual reduction lithium cell receives external force extrusion collision and the injury that produces, has ensured the safe in utilization of lithium cell, has the effect of reporting to stop for lithium cell safe in utilization.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

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

Fig. 2 is a plan view of embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of embodiment 2 of the present invention.

Reference numerals: 1-a sealing ring base, 2-a first through hole, 3-an opening area, 4-a support ring, 5-a positioning ring, 6-a second through hole, 7-a positioning arc, 8-a sealing ring lower bottom, 9-a sealing ring upper bottom, 10-an inner concave thread part and 11-an outer convex thread part.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Example 1

Referring to fig. 1-2, a high-efficiency lithium battery sealing ring comprises a sealing ring base 1, a first through hole 2, an opening area 3, a support ring 4, a positioning ring 5, a second through hole 6 and a positioning arc 7, wherein the sealing ring base 1 is a hollow annular body, the bottom of the sealing ring base 1 is provided with the through hole 2, the through hole 2 is concentric with the sealing ring base 1, the opening area 3 is arranged above the through hole 2, the opening area 3 is internally provided with the support ring 4 and the positioning ring 5, the support ring 4 is a circular ring, the top of the support ring 4 is arranged on the inner surface of the sealing ring base 1, the bottom of the support ring 4 is provided with the second through hole 6, the second through hole 6 is concentric with the support ring 4, the inner side of the support ring 4 is further provided with the positioning ring 5, one side of the positioning ring 5 is arranged inside the, the inclination angle of the positioning arc 7 is downward, and the center of the positioning arc 7 is on the central axis of the positioning ring 5.

Preferably, in this embodiment, the seal ring base 1, the support ring 4 and the positioning ring 5 are all made of plastic.

Preferably, in this embodiment, the seal ring base 1, the support ring 4 and the positioning ring 5 are all disposed around the same central shaft.

Preferably, in this embodiment, the upper part of the support ring 4 and the upper part of the positioning ring 5 are located on the same horizontal plane.

Example 2

Referring to fig. 1 to 3, a high-efficiency lithium battery sealing ring includes a first through hole 2, an opening area 3, a support ring 4, a positioning ring 5, a second through hole 6, a positioning arc 7, a sealing ring bottom 8, a sealing ring top 9, an inner concave thread portion 10 and an outer convex thread portion 11, the sealing ring bottom 8 is a hollow annular body, the bottom of the sealing ring bottom 8 is provided with the through hole 2, the through hole 2 is concentric with the sealing ring bottom 8, the opening area 3 is arranged above the through hole 2, the opening area 3 is provided with the support ring 4 and the positioning ring 5, the support ring 4 is a circular ring, the top of the support ring 4 is mounted on the inner surface of the sealing ring base 1, the bottom of the support ring 4 is provided with the second through hole 6, the second through hole 6 is concentric with the support ring 4, the positioning ring 5 is further arranged on the inner side of the support ring 4, the upside of holding ring 5 is equipped with location arc 7, the inclination direction of location arc 7 is downward, and the center of location arc 7 is on the center pin of holding ring 5, the inside structure that is equipped with of 8 on the sealing washer bottom of the bottom is the same with the sealing washer top 9, and the difference is, 8 lateral wall upper portions on the sealing washer bottom of the bottom are equipped with interior

screw thread portion

10, 9 lateral wall bottoms on the sealing washer top are equipped with outer

screw thread portion

11, 8 on the sealing washer bottom of the bottom and 9 on the sealing washer are connected through the screw thread of mutually supporting between interior screw thread portion 10 and outer screw thread portion 11, can place battery safety in the inner space that 8 on the sealing washer bottom and 9 on the sealing washer bottom of.

Preferably, in this embodiment, the lower bottom 8, the upper bottom 9, the support ring 4 and the positioning ring 5 are all made of plastic.

Preferably, in this embodiment, the lower seal ring bottom 8, the upper seal ring bottom 9, the support ring 4 and the positioning ring 5 are all disposed around the same central shaft.

The rest of the structure of this example is the same as example 1.

The utility model discloses a theory of operation is:

by arranging the support ring 4 and the positioning ring 5 in the sealing ring, when the bottom of the sealing ring is extruded, the support ring 4 and the positioning ring 5 can buffer the small aluminum sheet, so that the stress degree of the small aluminum sheet is reduced, the position of the small aluminum sheet in the lithium battery is fixed, and the relative position of the small aluminum sheet is prevented from being deviated; through the threaded connection between the internal concave thread part 10 arranged on the lower bottom 8 of the sealing ring and the external convex thread part 11 arranged on the upper bottom 9 of the sealing ring, the lithium battery can be safely placed in a space formed by connection between the lower bottom 8 of the sealing ring and the upper bottom 9 of the sealing ring, the damage to the lithium battery caused by external force extrusion collision is effectively reduced, and the use safety of the lithium battery is guaranteed.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a high-efficient lithium cell sealing washer, includes the sealing washer body, its characterized in that, the sealing washer body is the cavity ring body, the internal surface of sealing washer body is equipped with support ring (4) and holding ring (5), the upside of holding ring (5) is equipped with location arc (7), the inclination direction of location arc (7) is downward, and the center of location arc (7) is on the center pin of holding ring (5).

2. The sealing ring for the high-efficiency lithium battery according to claim 1, wherein the sealing ring body is a sealing ring base (1), a through hole (2) is formed in the bottom of the sealing ring base (1), the through hole (2) is concentric with the sealing ring base (1), an opening area (3) is formed above the through hole (2), and a support ring (4) and a positioning ring (5) are arranged in the opening area (3).

3. The sealing ring for the high-efficiency lithium battery according to claim 1, wherein the sealing ring body comprises a lower sealing ring base (8) and an upper sealing ring base (9), a through hole (2) is formed in the bottom of the lower sealing ring base (8), the through hole (2) is concentric with the lower sealing ring base (8), an opening area (3) is formed above the through hole (2), and a support ring (4) and a positioning ring (5) are arranged in the opening area (3).

4. The sealing ring for the high-efficiency lithium battery according to claim 3, wherein an inner concave thread part (10) is arranged on the upper part of the side wall of the lower bottom (8) of the sealing ring, an outer convex thread part (11) is arranged on the bottom of the side wall of the upper bottom (9) of the sealing ring, and the lower bottom (8) of the sealing ring and the upper bottom (9) of the sealing ring are in threaded connection through the mutual matching of the inner concave thread part (10) and the outer convex thread part (11).

5. The sealing ring for the high-efficiency lithium battery according to claim 2, wherein the supporting ring (4) is a circular ring, the top of the supporting ring (4) is installed on the inner surface of the sealing ring body, the bottom of the supporting ring (4) is provided with a second through hole (6), the second through hole (6) is concentric with the supporting ring (4), the inner side of the supporting ring (4) is further provided with a positioning ring (5), and one side of the positioning ring (5) is installed on the inner surface of the sealing ring body.

6. The sealing ring for the high-efficiency lithium battery according to claim 5, wherein the sealing ring base (1), the supporting ring (4) and the positioning ring (5) are made of plastic.

7. The gasket for high efficiency lithium batteries according to claim 6, characterized in that the gasket base (1), the support ring (4) and the positioning ring (5) are all arranged around the same central axis.

8. The gasket for high-efficiency lithium batteries according to claim 7, characterized in that the upper part of the support ring (4) and the upper part of the positioning ring (5) are located at the same level.