CN110890490A

CN110890490A - Lithium battery cap

Info

Publication number: CN110890490A
Application number: CN201911286650.6A
Authority: CN
Inventors: 陈凯
Original assignee: Anhui Feikai Electronic Technology Co Ltd
Current assignee: Anhui Feikai Electronic Technology Co Ltd
Priority date: 2019-12-14
Filing date: 2019-12-14
Publication date: 2020-03-17
Anticipated expiration: 2039-12-14
Also published as: CN110890490B

Abstract

The invention discloses a lithium battery cap, which comprises a battery body, wherein a combined cap is embedded in the top of the battery body, the combined cap comprises a cap body, a sealing ring, a top cap, a bottom cap, an elastic long sheet, an elastic short sheet and an aluminum sheet, the top of the aluminum sheet is positioned between the sealing rings, symmetrical positions in contact with the elastic short sheet are provided with convex blocks with conical sections, and adaptive grooves are formed in the positions of the elastic short sheets, which are positioned on the convex blocks, so that when the battery body and the combined cap are assembled, guide sheets of the battery body penetrate through the adaptive grooves; according to the invention, the guide sheet can be bent under the action of the adapting groove and the bump to form a hook shape, the bump is hung, then the battery body and the combined cap are assembled, the battery body supports against the elastic short sheet to enable the adapting groove to be away from each other, so that the guide sheet is clamped to prevent the guide sheet from sliding off, when the combined cap is disassembled, the elastic short sheet is reset, the guide sheet cannot be clamped, and the guide sheet is taken out.

Description

Lithium battery cap

Technical Field

The invention relates to the technical field of electric battery accessories, in particular to a lithium battery cap.

Background

In the manufacturing process of the battery, the connection mode of the battery body and the small aluminum sheet of the combined cover cap is mostly a welding mode, the operation is inconvenient, the efficiency is reduced, and the manufacturing cost of the battery is invisibly increased;

the chinese patent of prior art application number 201810803597.1 discloses a lithium cell block, a serial communication port, including lid, sealing washer, top cap, the long piece of elasticity, the short piece of elasticity and aluminum sheet, the lid is the cylindrical that runs through of upper and lower bottom surface, the lid closely overlaps and establishes on the sealing washer, the pot head is established on the sealing washer on the top cap, the pot head is established in the sealing washer elasticity long piece with on the short piece of elasticity, the short piece of elasticity is located the long piece below of elasticity, the pot head is established under the sealing washer on the aluminum sheet, solved traditional sealing washer quality and do not well can influence sealed effect, not only easy weeping can lead to little aluminum sheet to warp or directly drop moreover, causes the problem of positive negative short circuit easily. Therefore, the invention provides the lithium battery cap which is formed by connecting the battery body and the cap in a purely mechanical mode in combination with the prior art.

Disclosure of Invention

The invention mainly aims to provide a lithium battery cap which connects a battery body and the cap in a purely mechanical mode, and the problems in the background art can be effectively solved.

In order to achieve the purpose, the invention adopts the technical scheme that: a lithium battery cap comprises a battery body, a combined cap is embedded at the top of the battery body, the combined cap comprises a cap body, a sealing ring, a top cover, a bottom cover, an elastic long sheet, an elastic short sheet and an aluminum sheet, a convex block with a conical section is arranged at the symmetrical position between the sealing rings and in contact with the elastic short sheet at the top of the aluminum sheet, an adaptation groove is arranged at the position of the convex block at the elastic short sheet, when the battery body is assembled with the combined cap, a guide sheet of the battery body passes through the adaptation groove, the guide sheet can be bent under the action of the adaptation groove and the convex block to form a hook shape to hang the convex block, then the battery body is assembled with the combined cap, the battery body props against the elastic short sheet to enable the adaptation groove to be away from each other so as to clamp the guide sheet to prevent the guide sheet from sliding off, when the cap is disassembled, the combined cap is taken out, convenient and fast, and simple and practical process.

Furthermore, the bottom of the elastic short sheet is provided with a guide groove close to the symmetrical position of the aluminum sheet, and the guide groove and the adaptation groove are used for guiding the guide sheet to slide into the adaptation groove.

Furthermore, the top end of the bump and the joint of the bump and the aluminum sheet are provided with round corners, so that the guide sheet can slide conveniently.

Furthermore, the cover body is cylindrical with the upper bottom surface and the lower bottom surface penetrating through, the cover body is tightly sleeved on the sealing ring, the upper end of the sealing ring is sleeved on the top cover, the middle end of the sealing ring is sleeved on the elastic long piece and the elastic short piece, the elastic short piece is positioned below the elastic long piece, and the lower end of the sealing ring is sleeved on the aluminum sheet to ensure the connection reasonability and tightness.

The working principle and the beneficial effects are as follows: lie in between the sealing washer through the aluminum sheet top and be located the symmetric position that contacts with the short piece of elasticity and be provided with the cross-section for conical lug, the adaptation groove has been seted up to the short piece position that lies in the lug of elasticity, when being about to battery body and combination block equipment, passes the adaptation groove with battery body's guide piece, can solve the problem that exists in the background art effectively.

(1) Through the guide piece can be crooked under the effect of adaptation groove and lug to form the shape of a crotch, hang the lug, then with battery body and combination block equipment, battery body withstands elasticity short piece and makes its adaptation groove keep away from each other and then prevent its landing with the guide piece chucking, when dismantling, takes out the combination block, and elasticity short piece resets, and then can not the chucking guide piece, take out the guide piece can, convenient and fast, simple process is practical.

(2) The bottom of the elastic short sheet is provided with a guide groove close to the symmetrical position of the aluminum sheet, and the guide groove and the adaptation groove are used for guiding the guide sheet to slide into the adaptation groove.

Drawings

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

FIG. 2 is an enlarged view of the structure A in FIG. 1 according to the present invention.

In the figure: 1. a battery body; 2. a cover body; 3. a seal ring; 4. a top cover; 5. a bottom cover; 6. an elastic long sheet; 7. an elastic short piece; 8. aluminum sheets; 9. a bump; 10. an adaptation groove; 11. a guide groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-2, a lithium battery cap comprises a battery body 1, a combined cap is embedded on the top of the battery body 1, the combined cap comprises a cover body 2, a sealing ring 3, a top cover 4, a bottom cover 5, an elastic long sheet 6, an elastic short sheet 7 and an aluminum sheet 8, a convex block 9 with a conical section is arranged at the top of the aluminum sheet 8 between the sealing rings 3 and at the symmetrical position contacting with the elastic short sheet 7, an adapting groove 10 is arranged at the position of the convex block 9 of the elastic short sheet 7, when the battery body and the combined cap are assembled, a guide sheet of the battery body passes through the adapting groove, the guide sheet can be bent under the action of the adapting groove and the convex block, and forms a hook shape to hang the convex block, then the battery body and the combined cap are assembled, the battery body pushes against the elastic short sheet to make the adapting groove far away from each other so as to clamp the guide sheet to prevent the guide sheet, the elasticity short piece resets, and then can not the chucking guide piece, take out the guide piece can, convenient and fast, simple process is practical, guiding groove 11 has been seted up to the symmetric position that elasticity short piece 7 bottom is close to aluminum sheet 8, guiding groove 11 and adaptation groove 10, be used for guiding the guide piece and slide into the adaptation inslot, lug 9 top and lug 9 all are equipped with the fillet with aluminum sheet 8's junction, make things convenient for the guide piece to slide, lid 2 is the cylindricality that runs through from top to bottom surface, the inseparable cover of lid 2 is established on sealing washer 3, the last pot head of sealing washer 3 is established on top cap 4, pot head is established on elasticity long piece 6 and elasticity short piece 7 in the sealing washer 3, elasticity short piece 7 is located elasticity long piece 6 below, pot head is established on aluminum sheet 7 under the sealing washer 3, guarantee.

Claims

1. Lithium cell block, including battery body (1), its top is inlayed and is equipped with combination block, its characterized in that: the combined cover cap comprises a cover body (2), sealing rings (3), a top cover (4), a bottom cover (5), an elastic long sheet (6), elastic short sheets (7) and aluminum sheets (8), wherein the tops of the aluminum sheets (8) are located between the sealing rings (3) and are symmetrically arranged in contact with the elastic short sheets (7), convex blocks (9) with conical sections are arranged at the symmetrical positions, and adaptive grooves (10) are formed in the positions, located on the convex blocks (9), of the elastic short sheets (7).

2. A lithium battery cap as recited in claim 1, wherein: the bottom of the elastic short sheet (7) is provided with a guide groove (11) close to the symmetrical position of the aluminum sheet (8), and the guide groove (11) is matched with the matching groove (10).

3. A lithium battery cap as recited in claim 2, wherein: the top end of the lug (9) and the joint of the lug (9) and the aluminum sheet (8) are provided with round corners.

4. A lithium battery cap as recited in claim 3, characterized in that: a sliding seat (8) is arranged at the bottom of the jack (9), a sliding groove is formed in the bottom of the sliding seat (8), a sliding rail (7) is arranged at the position, located in the sliding groove, at the bottom of the box body (1), and the outer surface of the sliding rail (7) is in sliding connection with the sliding groove.

5. A lithium battery cap as recited in claim 4, wherein: the cover body (2) is cylindrical with an upper bottom surface and a lower bottom surface penetrating through, the cover body (2) is tightly sleeved on the sealing ring (3), the upper end of the sealing ring (3) is sleeved on the top cover (4), the middle end of the sealing ring (3) is sleeved on the elastic long sheet (6) and the elastic short sheet (7), the elastic short sheet (7) is positioned below the elastic long sheet (6), and the lower end of the sealing ring (3) is sleeved on the aluminum sheet (7).