CN213936389U

CN213936389U - Button type lithium battery shell

Info

Publication number: CN213936389U
Application number: CN202023107761.7U
Authority: CN
Inventors: 虞军达
Original assignee: Jiangsu Qianda Energy Technology Co ltd
Current assignee: Jiangsu Qianda Energy Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-10
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a button type lithium battery shell, including lid, lower cover, connecting piece, the inner wall of upper cover is close to the fixed knot of fixedly connected with of top department, the interior diapire fixedly connected with snap-plate of lower cover, the snap-plate be close to one side fixedly connected with elastic plate of lower cover center department, the interior diapire of lower cover is provided with the constant head tank, one side fixedly connected with seal shell of connecting piece, one side fixedly connected with arch of keeping away from seal shell of connecting piece, the both ends of connecting piece all are provided with the elasticity and detain. The utility model discloses in, be provided with block board, elastic plate, constant head tank, fixed knot, elasticity are detained, sealed shell, rubber seal pad and arch, extrude the battery core through the elastic plate and fix it, avoid the battery core to rock, fixed knot and elasticity are detained the cooperation and are fixed with the connecting piece, and the connecting piece plays sealed effect to the battery inside and has avoided the risk of the inside weeping of lithium cell, has promoted the security and the practicality of battery.

Description

Button type lithium battery shell

Technical Field

The utility model relates to a lithium ion battery part field especially relates to a button type lithium battery shell.

Background

With the development and progress of science and technology, the market demand for wearable devices, such as wireless earphones, sports watches, bracelets, rings and other electronic products, is increasing day by day, and is limited by the development and market demand of the industrial manufacturing level, the button cell batteries in the market at present mainly comprise primary battery, secondary button lithium ion batteries are not sold in the market basically, and such miniaturized products have higher requirements for the space size of battery products. Due to the reduction of the battery size and the improvement of the requirement on the size consistency, the soft package battery provides a huge challenge to the processing capacity. The steel shell battery (also called button battery) has the advantages of a far-super soft-package battery in the aspect of size consistency, and better meets the positioning and the requirements of the market and customers on the micro battery.

Under the background requirement that the internal sealing performance of the button cell in the current market is poor, the problem of cell leakage exists, and the shell for the button cell needs to be provided urgently to meet the requirements of the majority of users.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a button type lithium battery shell.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a button type lithium battery shell, includes upper cover, lower cover, connecting piece, the inner wall of upper cover is close to the fixed knot of fixedly connected with of top department, the interior diapire fixedly connected with block board of lower cover, the block board be close to one side fixedly connected with elastic plate of lower cover center department, the interior diapire of lower cover is provided with the constant head tank, one side fixedly connected with seal shell of connecting piece, one side fixedly connected with arch of keeping away from the seal shell of connecting piece, the both ends of connecting piece all are provided with the elasticity and detain.

Furthermore, the inner walls of the upper cover and the lower cover are provided with internal threads, the outer surface of the connecting piece is provided with external threads meshed with the internal threads of the upper cover and the lower cover, and after the upper cover and the lower cover are connected with the connecting piece through the threads, sealant is used for coating gaps to strengthen sealing.

Furthermore, the shape of the fixing buckle is matched with that of the elastic buckle, and the fixing buckle is an annular buckle with radian.

Furthermore, the inner wall of constant head tank scribbles the fixed glue.

Further, the fixed connection of the clamping plate and the lower cover is welding, and the clamping plate and the elastic plate are both circular rings.

Furthermore, the inside of sealed shell is hollow, the top and the bottom of sealed shell all are provided with rubber seal pad.

The utility model has the advantages that: the utility model provides a button type lithium cell casing can avoid the battery core to rock, and fixed knot is detained the cooperation with elasticity and is fixed the connecting piece, and the connecting piece plays sealed effect to the battery is inside, has avoided the risk of the inside weeping of lithium cell through connecting piece, the sealed pad of rubber's setting, has promoted the security and the practicality of battery.

Drawings

Fig. 1 is a cross-sectional view of a button-type lithium battery case provided by the present invention;

fig. 2 is a schematic view of an upper cover and a lower cover of a button-type lithium battery case according to the present invention;

fig. 3 is a schematic view of a connecting member of a button-type lithium battery case provided by the present invention.

Illustration of the drawings:

1. an upper cover; 2. a lower cover; 3. a fixing buckle; 4. a clamping plate; 5. an elastic plate; 6. positioning a groove; 7. a connecting member; 8. an elastic buckle; 9. sealing the shell; 10. and (4) protruding.

Detailed Description

Referring to fig. 1-3, the present invention provides an embodiment: a button type lithium battery shell comprises an upper cover 1 and a lower cover 2, connecting piece 7, the inner wall of upper cover 1 is close to top department fixedly connected with knot 3, the interior diapire fixedly connected with block board 4 of lower cover 2, block board 4 be close to 2 center departments one side fixedly connected with elastic plate 5 of lower cover, elastic plate 5 extrusion battery core is fixed with it, avoid the battery core to rock, the interior diapire of lower cover 2 is provided with constant head tank 6, one side fixedly connected with seal shell 9 of connecting piece 7, one side fixedly connected with arch 10 of keeping away from seal shell 9 of connecting piece 7, arch 10 set up can increase connecting piece 7 and upper cover 1, threaded connection compactness between lower cover 2, reduce the risk of weeping, the both ends of connecting piece 7 all are provided with elasticity and detain 8, fixedly detain 3 and elasticity and detain 8 cooperation and fix connecting piece 7, connecting piece 7 plays sealed effect with battery inside.

The utility model provides a button type lithium battery shell, when using, earlier with the elastic plate 5 of connecting piece 7 lower extreme and the fixed 3 blocks of detaining of 2 inner walls of lower cover fixed, put into 6 insides of constant head tank with the battery core negative pole, the fixed glue of 6 insides of constant head tank is fixed with the battery core position this moment, carry out the secondary through elastic plate 5 with the battery core simultaneously and fix, treat that the battery core is fixed the back, detain 8 with the elasticity on connecting piece 7 top and the fixed 3 blocks of detaining of upper cover 1, rotate upper cover 1 this moment and lower cover 2 and make upper cover 1, the threaded connection of lower cover 2 and connecting piece 7 is inseparable, with the inside seal of lithium battery shell.

In the further scheme, the inner walls of the upper cover 1 and the lower cover 2 are provided with internal threads, the outer surface of the connecting piece 7 is provided with external threads meshed with the internal threads of the upper cover 1 and the lower cover 2, after the upper cover 1 and the lower cover 2 are connected with the connecting piece 7 through threads, the sealing glue is used for coating a gap to enable sealing to be enhanced, and the upper cover 1 and the lower cover 2 can be relatively fixed in position through the connecting piece 7 while the risk of liquid leakage is reduced.

In a further scheme, the shape of the fixing buckle 3 is matched with that of the elastic buckle 8, the fixing buckle 3 is an annular buckle with radian, and the connecting piece 7 is fixed with the upper cover 1 and the lower cover 2 through the matched fixing buckle 3 and the elastic buckle 8.

In the further scheme, the inner wall of positioning groove 6 is coated with fixing glue, and the battery core is fixed through the fixing glue.

In a further scheme, the fixed connection of the clamping plate 4 and the lower cover 2 is welding, the clamping plate 4 and the elastic plate 5 are both in a ring shape, the position of the battery core is secondarily fixed, and the deviation of the battery core in the inner position of the battery case is avoided.

In a further scheme, the inside of the sealing shell 9 is hollow, and rubber sealing gaskets 11 are arranged at the top end and the bottom end of the sealing shell 9, so that the generation of gap liquid leakage when the upper cover 1 and the lower cover 2 are connected is avoided.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a button lithium battery shell, includes upper cover, lower cover, connecting piece, its characterized in that: the inner wall of upper cover is close to the fixed knot of fixedly connected with of top department, the interior diapire fixedly connected with block board of lower cover, the block board be close to one side fixedly connected with elastic plate of lower cover center department, the interior diapire of lower cover is provided with the constant head tank, one side fixedly connected with seal shell of connecting piece, one side fixedly connected with arch of keeping away from seal shell of connecting piece, the both ends of connecting piece all are provided with the elasticity and detain.

2. A button-type lithium battery casing as claimed in claim 1, characterized in that: the inner walls of the upper cover and the lower cover are provided with internal threads, the outer surface of the connecting piece is provided with external threads meshed with the internal threads of the upper cover and the lower cover, and after the upper cover and the lower cover are connected with the connecting piece through the threads, the sealing glue is used for coating gaps to strengthen sealing.

3. A button-type lithium battery casing as claimed in claim 1, characterized in that: the shape of the fixing buckle is matched with that of the elastic buckle, and the fixing buckle is an annular buckle with radian.

4. A button-type lithium battery casing as claimed in claim 1, characterized in that: the inner wall of the positioning groove is coated with fixing glue.

5. A button-type lithium battery casing as claimed in claim 1, characterized in that: the clamping plate is fixedly connected with the lower cover in a welding mode, and the clamping plate and the elastic plate are both circular.

6. A button-type lithium battery casing as claimed in claim 1, characterized in that: the inside of sealed shell is hollow, the top and the bottom of sealed shell all are provided with rubber seal pad.