CN214411452U

CN214411452U - Soft packet of lithium electricity prevents short circuit utmost point ear

Info

Publication number: CN214411452U
Application number: CN202022072422.3U
Authority: CN
Inventors: 郭道传; 黄健; 韦东海; 李硕
Original assignee: Dongguan Jinsaier Battery Technology Co ltd
Current assignee: Dongguan Jinsaier Battery Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-10-15
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a soft packet of lithium electricity prevents short circuit utmost point ear, including battery main part, anodal ear and negative pole ear, battery main part's inside is glued through utmost point ear respectively and is connected with anodal ear and negative pole ear, and the bottom of anodal ear is glued through utmost point ear and is connected with supplementary nickel strap to the outside both sides of anodal ear and negative pole ear are provided with the guard plate respectively, the outside of guard plate is glued through utmost point ear and is connected with battery main part's top, and the inboard of guard plate is connected with the stripper plate through reset spring. This short circuit utmost point ear is prevented to soft packet of lithium electricity, positive negative pole ear use different length utmost point ears to glue to wrap and make and expose one side utmost point ear and glue long, and the short positive negative pole utmost point ear of one side utmost point ear reaches the effect of carrying out the protection to the soft packet of positive negative pole that is in the centre-to-centre spacing little, prevents utmost point ear short circuit phenomenon.

Description

Soft packet of lithium electricity prevents short circuit utmost point ear

Technical Field

The utility model relates to a battery manufacturing technology field specifically is a soft packet of lithium electricity prevents short circuit utmost point ear.

Background

The battery tab is a metal conductor which leads out the positive electrode and the negative electrode from the battery core, so that the tab is one of essential parts in the production of the battery, and the following problems exist when the tab is installed in the production of the battery in the existing market;

when the center distance of the lugs of the battery is more than 6.0mm, the phenomenon of short circuit caused by the contact of the positive and negative lugs due to the distortion or bending of the lugs can be effectively avoided, but the problem of short circuit caused by the contact of the positive and negative lugs caused by the distortion or bending of the lugs cannot be avoided in the process of the battery with the center distance of the lugs being less than 6.0mm, so that the performance of the battery is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft packet of lithium electricity prevents short circuit utmost point ear to solve the utmost point ear centre-to-centre spacing of the present market pond that above-mentioned background art provided when more than 6.0mm, can effectively avoid because of utmost point ear distortion or buckle lead to just, the short circuit phenomenon takes place in the contact of negative pole ear, nevertheless utmost point ear centre-to-centre spacing is at the battery below 6.0mm, because utmost point ear centre-to-centre spacing is less, the in-process can't avoid utmost point ear distortion or buckle lead to just, the short circuit takes place in the contact of negative pole ear, so the problem of the drawback of battery performance has been influenced.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a soft packet of lithium electricity prevents short circuit utmost point ear, includes battery main body, anodal ear and negative pole ear, battery main body's inside is glued through utmost point ear respectively and is connected with anodal ear and negative pole ear, and the bottom of anodal ear is glued through utmost point ear and is connected with supplementary nickel strap to the outside both sides of anodal ear and negative pole ear are provided with the guard plate respectively, the outside of guard plate is glued through utmost point ear and is connected with battery main body's top, and the inboard of guard plate is connected with the stripper plate through reset spring.

Preferably, the positive tab is made of an aluminum strip, the bottom of the positive tab is connected with the auxiliary nickel strip, and tab glue is arranged on two outer sides of the positive tab and the negative tab.

Preferably, the length of the protection plate is greater than the lengths of the positive electrode tab and the negative electrode tab, and the positive electrode tab and the negative electrode tab are the same in size.

Preferably, the utmost point ear is glued and is provided with 2 groups, and its every group is provided with 2 to 2 utmost point ear of every group glue length and do not be the setting of a long and a short, and 2 utmost point ear glues of a long and a short respectively and all have the setting in the both sides of anodal ear and negative pole ear simultaneously.

Preferably, the inner side of the extrusion plate is in contact with the outer walls of the positive electrode lug and the negative electrode lug, and the outer side of the extrusion plate is provided with return springs at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: the soft-package lithium battery short-circuit prevention tab;

1. the positive and negative electrode lugs are wrapped by the lug glue with different lengths to form exposed ends, one surface of each lug is long in glue, the other surface of each lug is short in length, the positive and negative electrode lugs are protected by soft-packaged positive and negative electrodes with small center distance, and the phenomenon of short circuit of the lugs is prevented;

2. the arrangement of the protection plates on the two sides of the positive and negative electrode lugs is matched with the arrangement of the protection plates in the positive and negative electrode lugs, so that the outer side of the bottom of the positive and negative electrode lugs can be protected under the action of the reset spring, and the phenomenon of serious bending can be avoided.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic diagram of a side view structure of the positive tab of the present invention;

fig. 3 is a schematic side view of the negative electrode tab of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 5 is a schematic view of the top view structure of the protection plate of the present invention.

In the figure: 1. a battery main body; 2. a positive tab; 3. a negative tab; 4. a protection plate; 5. gluing a tab; 6. an auxiliary nickel strap; 7. a return spring; 8. and (5) pressing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a soft packet of lithium electricity prevents short circuit utmost point ear, including battery main body 1, anodal ear 2, negative pole ear 3, guard plate 4, utmost point ear glue 5, supplementary nickel strap 6, reset spring 7 and stripper plate 8, battery main body 1's inside is glued 5 through utmost point ear respectively and is connected with anodal ear 2 and negative pole ear 3, and anodal ear 2's bottom is glued 5 through utmost point ear and is connected with supplementary nickel strap 6, and anodal ear 2 and negative pole ear 3's outside both sides are provided with guard plate 4 respectively, guard plate 4's outside is glued 5 through utmost point ear and is connected with battery main body 1's top, and guard plate 4's inboard is connected with stripper plate 8 through reset spring 7.

The positive electrode tab 2 is made of an aluminum strip, the bottom of the positive electrode tab 2 is connected with the auxiliary nickel strip 6, and tab glue 5 is arranged on two outer sides of the positive electrode tab 2 and the negative electrode tab 3.

The length of guard plate 4 is greater than the length of anodal ear 2 and negative pole ear 3, and the size of a dimension homogeneous phase of anodal ear 2 and negative pole ear 3, utmost point ear glue 5 is provided with 2 groups, and its every group is provided with 2, and 2 utmost point ear glue 5 lengths of every group are the setting of a long and a short respectively, 2 utmost point ear glue 5 of a long and a short simultaneously all have the setting in the both sides of anodal ear 2 and negative pole ear 3 respectively, utmost point ear glue 5's a long and a short setting, can protect the soft packet of positive negative pole that is in the centre-to-centre spacing less, it takes place to reach the phenomenon that can prevent the short circuit.

The inboard of stripper plate 8 and anodal ear 2 and the outer wall of negative pole ear 3 contact each other, and the equidistant reset spring 7 that is provided with in the outside of stripper plate 8, conveniently protects the outside below position of positive utmost point ear 2 and negative pole ear 3 under the effect of stripper plate 8 and guard plate 4, guarantees that the phenomenon that anodal ear 2 and negative pole ear 3 are crooked easily can not appear and takes place.

The working principle is as follows: when the soft package lithium battery short circuit prevention tab is used, the connected part is wrapped by using tab glue 5 with different lengths outside the positive tab 2, one end of the longer tab of the positive tab 2 is connected with the auxiliary nickel strip 6, and the negative tab 3 is also made of nickel strip, so that the effect of protecting the soft package positive and negative tabs with smaller center distance is achieved, the short circuit phenomenon is prevented, meanwhile, the protection plates 4 are respectively arranged at the two sides of the exposed ends of the positive tab 2 and the negative tab 3, the arrangement of the extrusion plates 8 connected through the reset springs 7 inside the protection plates 4 is matched, the effect of protecting the outside of the positive tab 2 and the negative tab 3 is achieved, the strength of the bottoms of the positive tab 2 and the negative tab 3 can be increased when the positive tab 2 and the negative tab 3 are used outside, and the phenomenon of serious deformation is prevented, those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a soft packet of lithium electricity prevents short circuit utmost point ear, includes battery subject (1), anodal ear (2) and negative pole ear (3), its characterized in that: the inside of battery main part (1) is connected with anodal ear (2) and negative pole ear (3) through utmost point ear glue (5) respectively, and the bottom of anodal ear (2) is connected with supplementary nickel strap (6) through utmost point ear glue (5) to the outside both sides of anodal ear (2) and negative pole ear (3) are provided with guard plate (4) respectively, the outside of guard plate (4) is connected with the top of battery main part (1) through utmost point ear glue (5), and the inboard of guard plate (4) is connected with stripper plate (8) through reset spring (7).

2. The short-circuit-preventing tab for the soft-package lithium battery of claim 1 is characterized in that: the positive tab (2) is made of an aluminum strip material, the bottom of the positive tab (2) is connected with the auxiliary nickel strip (6), and tab glue (5) is arranged on two outer sides of the positive tab (2) and the negative tab (3).

3. The short-circuit-preventing tab for the soft-package lithium battery of claim 1 is characterized in that: the length of the protection plate (4) is larger than the lengths of the positive electrode lug (2) and the negative electrode lug (3), and the sizes of the positive electrode lug (2) and the negative electrode lug (3) are the same.

4. The short-circuit-preventing tab for the soft-package lithium battery of claim 1 is characterized in that: utmost point ear glue (5) are provided with 2 groups, and its every group is provided with 2 to 2 utmost point ear glue (5) length of every group are the setting of a long and a short respectively, and 2 utmost point ear glue (5) of a long and a short respectively all have the setting in the both sides of anodal ear (2) and negative pole ear (3) simultaneously.

5. The short-circuit-preventing tab for the soft-package lithium battery of claim 1 is characterized in that: the inner side of the extrusion plate (8) is in contact with the outer walls of the positive electrode lug (2) and the negative electrode lug (3), and the outer side of the extrusion plate (8) is provided with return springs (7) at equal intervals.