CN205609653U - Lithium cell overload self preservation protects utmost point ear - Google Patents

Abstract

The utility model discloses a lithium cell overload self preservation protects utmost point ear handles through carry out the abnormal shape to metallic conductor for have the current -carrying body in the middle of the metallic conductor, through its function of acing as " fuse ", when main equipment operating overload, can fuse automatically, thereby play self preservation and protect the effect current -carrying body. Owing to adopt the mode of opening the triangular groove on metallic conductor both sides limit to the slanted bar form current -carrying body that forms can make the current -carrying body reach required width and the length of fusing under the condition that does not change whole metallic conductor length.

Description

A kind of lithium battery overload self-shield lug

Technical field

This utility model relates to foil process tool, more particularly, it relates to a kind of lithium battery is crossed and is downloaded from Protection lug.

Background technology

Common batteries lead-in wire (have another name called lug, the most collectively termed as lug, point positive and negative pole, it will usually Classify according to lug material, such as: aluminium pole ears, nickel-clad copper lug, nickel lug etc.) structure set It is calculated as: including the metallic conductor 1 of lamellar and the polymer insulating film 2 of strip, wherein, macromolecule is exhausted Velum 2 is solid-state strip material, bonds (commonly referred to as with metallic conductor through 140 degree～160 degree heating Heat-sealing).This lug is commonly used to compact electric apparatus or use for electronic products lithium battery: such as model plane, electricity Power driven tools etc..But, for the lithium battery of some special-purpose, due to main equipment, to mistake Carry protection and propose extra high requirement.So, current existing common batteries lug just cannot be fine Meet its demand, it is necessary to carry out the design of special structure and improve.

Utility model content

For disadvantages mentioned above present in prior art, the purpose of this utility model is to provide a kind of lithium electricity Pond overload self-shield lug, it is possible to there is overload self-protection function.

For achieving the above object, this utility model adopts the following technical scheme that

A kind of lithium battery overload self-shield lug, metallic conductor and transversal heat seal including lamellar are in metal The polymer insulating film of the solid-state banding on conductor, the dual-side of described metallic conductor is the most laterally opened Having a triangular groove, two triangular groove sequences are arranged, the metallic conductor between two triangular grooves formed one in The diagonally disposed carrying object playing overload fusing automatically.

Two described triangular groove sizes are identical.

Two triangular grooves and carrying object are all heat-sealed in it by described polymer insulating film.

In technique scheme, lithium battery of the present utility model overload self-shield lug has following several Individual advantage:

1, metallic conductor is carried out special-shaped process so that there is in the middle of metallic conductor a carrying object, pass through It serves as the function of " electric fuse ", it is possible to when main equipment transships, automatically fuse, thus plays certainly Protective effect carrying object.

2, the mode of triangular groove is opened in employing at metallic conductor dual-side, with the slanted bar shape carrying object formed, Can be in the case of not changing whole metallic conductor length so that carrying object reaches the required width that fuses Degree and length.

Accompanying drawing explanation

Fig. 1 is the structural representation of the lug of prior art；

Fig. 2 is the cross-sectional schematic of a side of the lug of prior art；

Fig. 3 is the structural representation of lithium battery of the present utility model overload self-shield lug；

Fig. 4 is the structural representation of the metallic conductor of lug of the present utility model.

Detailed description of the invention

The technical solution of the utility model is further illustrated below in conjunction with the accompanying drawings with embodiment.

Refer to shown in Fig. 3～Fig. 4, lithium battery of the present utility model overload self-shield lug and existing skill Art is identical, the most also includes that the metallic conductor 1 of lamellar and transversal heat seal are on metallic conductor 1 The polymer insulating film 2 of solid-state banding.Except for the difference that, the dual-side of described metallic conductor 1 is respectively Laterally having a triangular groove 3, two triangular groove 3 sequences are arranged, the metal between two triangular grooves 3 Conductor 1 forms one in the diagonally disposed carrying object 4 playing overload fusing automatically.

As a preferred embodiment, two described triangular groove 3 sizes are identical.

As another preferred embodiment, described polymer insulating film 2 by two triangular grooves 3 and Carrying object 4 is all heat-sealed in it.

The preparation method of lithium battery of the present utility model overload self-shield lug, comprises the following steps:

A. the dual-side at the metallic conductor 1 of rectangular patch the most laterally offers a triangular groove 3, and makes Two triangular groove 3 sequences are arranged so that the metallic conductor 1 between two triangular grooves 3 forms one in tiltedly To the carrying object 4 playing overload fusing automatically arranged；

B. by polymer insulating film 2 transversal heat seal on metallic conductor 1, and by two triangular grooves 3 And carrying object 4 is all heat-sealed in it.

In sum, lithium battery of the present utility model overload self-shield lug, have several advantages that

1, metallic conductor 1 is carried out special-shaped process so that in the middle of metallic conductor 1, there is a carrying object 4, The function of " electric fuse " is served as by it, when main equipment operating overload, it is possible to automatically fuse, from And play self-shield effect carrying object.

2, the mode of triangular groove 3 is opened in employing at metallic conductor 1 dual-side, with the slanted bar shape current-carrying formed Body 4, it is possible in the case of not changing whole metallic conductor 1 length so that carrying object 4 reaches molten Disconnected required width and length.

Those of ordinary skill in the art is it should be appreciated that above embodiment is intended merely to Bright this utility model, and it is not used as to restriction of the present utility model, as long as of the present utility model In spirit, change, the modification of embodiment described above all will be fallen of the present utility model In Claims scope.

Claims (3)

1. a lithium battery overload self-shield lug, metallic conductor and transversal heat seal including lamellar are in gold The polymer insulating film of the solid-state banding on genus conductor, it is characterised in that: the two of described metallic conductor Side the most laterally has a triangular groove, and two triangular groove sequences are arranged, the gold between two triangular grooves Belong to conductor and form one in the diagonally disposed carrying object playing overload fusing automatically.

2. lithium battery overload self-shield lug as described in claim 1, it is characterised in that:

Two described triangular groove sizes are identical.

3. lithium battery overload self-shield lug as described in claim 1, it is characterised in that:

Two triangular grooves and carrying object are all heat-sealed in it by described polymer insulating film.