CN212648295U

CN212648295U - Efficient-packaging tab sleeve

Info

Publication number: CN212648295U
Application number: CN202021015456.2U
Authority: CN
Inventors: 黎学贤; 韩冰; 纪荣进; 李聪; 郑明清; 陈杰; 李载波; 杨山
Original assignee: Huizhou Liwinon Energy Technology Co Ltd
Current assignee: Huizhou Liwinon Energy Technology Co Ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-03-02
Anticipated expiration: 2030-06-05

Abstract

The utility model belongs to the technical field of the battery is made, concretely relates to utmost point ear cover of high-efficient encapsulation, including the body with be used for sealed battery's the cover body, the body inlays locates the cover body, and the body is provided with the chamber that holds that is used for encapsulating utmost point ear. The utility model discloses can effectively encapsulate the electric core that has a plurality of utmost point ears, improve the encapsulation efficiency of the electric core of a plurality of utmost point ears to, its compact structure has not only improved the energy density of electric core, still plays the effect that the leak protection was sealed when the top of battery is sealed, has improved the sealing performance and the security performance of battery effectively.

Description

Efficient-packaging tab sleeve

Technical Field

The utility model belongs to the technical field of the battery is made, concretely relates to utmost point earmuff of high-efficient encapsulation.

Background

The lithium ion battery has the advantages of long cycle life, high voltage, small self-discharge, no memory effect, wide working range and the like, and can be applied to products such as mobile phones, tablet computers, unmanned aerial vehicles and the like.

However, the inventor found that in the existing power and consumer electric core, there is an electric core structure with a plurality of tabs, and the electric core is made by winding or laminating a plurality of pole pieces with foil tabs, in order to package the electric core smoothly, the prior art often needs to fold the tabs of the foil tabs and the lead-out tabs welded on the foil tabs, and the folded tabs occupy a large space, so that the energy density of the electric core is greatly lost.

Therefore, a new tab sleeve is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the efficient packaging polar earmuff has the advantages that the efficient packaging polar earmuff is compact in structure, the electric core with the multiple polar lugs can be effectively packaged, the occupation proportion of the multiple polar lugs to space is reduced, the energy density of the electric core and the packaging efficiency of the multi-polar-lug electric core are effectively improved, the packaging stability is high, the leakage-proof sealing effect can be achieved when the top seal of the battery is carried out, and the sealing performance and the safety performance of the battery are effectively improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a utmost point ear cover of high-efficient encapsulation, includes the body and is used for the cover body of sealed battery, the body inlays to be located the cover body, the body is provided with the chamber that holds that is used for encapsulating utmost point ear.

Further, the body is provided with an open end and a closed end, the closed end corresponds to the open end, the open end with hold the chamber intercommunication, the open end is inlayed and is located the cover body, the closed end expose in the cover body.

Further, the length of holding the chamber is 0.3 ~ 3mm, and the width is 1 ~ 6mm, and the height is 0.09 ~ 0.3 mm.

Further, the width of the body may be set to 1.5mm, 2mm, 3mm, 4mm, 5mm, or 6 mm.

Further, the cover body is provided with first glue film and second glue film, first glue film connect in the second glue film, the body set up in first glue film with between the second glue film, first glue film with the second glue film forms the spacing groove jointly, the open end of body inlays to be located the spacing groove.

Further, the sheathing body is provided with an insulating layer for sealing the battery.

Furthermore, the open end is flush with the side part of the sleeve body, and the insulating layer of the sleeve body is arranged around the open end.

Furthermore, the insulating layer extends from the outer wall of the opening end to the closed end, the extending length of the insulating layer is 0.3-1.5 mm, and the extending length is the length of the insulating layer extending from the outer wall of the opening end to the closed end in a straight line.

Further, the material of the insulating layer is one of polypropylene, polyethylene terephthalate or polyethylene naphthalate.

Further, the material of the body is a conductive material, and can be a conductive material mixed by metal and nonmetal.

Further, the material of the body is metal, and can be pure metal or alloy material.

The beneficial effects of the utility model reside in that: the utility model discloses a utmost point ear cover includes the body and is used for the cover body of sealed battery, and the body inlays and locates the cover body, and the body is provided with the chamber that holds that is used for encapsulating utmost point ear, and in the encapsulation process of utmost point ear, directly overlaps into the chamber that holds of body with the lead-out end of the foil material utmost point ear of a plurality of utmost point ears to make a plurality of utmost point ears compact in this body or make a plurality of utmost point ears weld in the inner wall of body, can avoid carrying out the operation of rolling over utmost point ear to a plurality of utmost point ears like this, thereby has reduced the proportion of occupation of a plurality of utmost point ears to the space, has improved the energy density; and the sleeve body is always in a position capable of enabling the battery core to carry out top sealing packaging in the process of packaging the lug by the body, so that the sleeve body can play a role in preventing sealing leakage when the battery is sealed, the packaging stability of the battery is effectively enhanced, and the sealing performance and the safety performance of the battery are also effectively improved.

Drawings

Fig. 1 is one of perspective views of embodiment 1 of the present invention.

Fig. 2 is an operation diagram of embodiment 1 of the present invention.

Fig. 3 is a second perspective view of embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 5 is a schematic structural diagram of embodiment 3 of the present invention.

Wherein: 1-body; 2-a sleeve body; 10-a containment chamber; 11-open end; 12-a closed end; 21-a first glue layer; 22-a second glue layer; 23-insulating layer.

Detailed Description

As used in this specification and the appended claims, certain terms are used to refer to particular components, and it will be appreciated by those skilled in the art that a manufacturer may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, detachable connections, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings 1 to 5 and the specific embodiments, but the present invention is not limited thereto.

Example 1

The utility model provides a utmost point ear cover of high-efficient encapsulation, includes body 1 and the cover body 2 that is used for sealed battery, and body 1 inlays locates cover body 2, and body 1 is provided with the chamber 10 that holds that is used for encapsulating utmost point ear.

Specifically, the body 1 is provided with an open end 11 and a closed end 12, the closed end 12 corresponds to the open end 11, the open end 11 and the closed end 12 are respectively arranged on the front side and the rear side of the body 1, the open end 11 is communicated with the accommodating cavity 10, the open end 11 is embedded in the sleeve body 2, the closed end 12 is exposed out of the sleeve body 2, and the surface of the closed end 12 is provided with an arc-shaped chamfer.

Wherein, the colloid of the structure as an organic whole of cover body 2, the thickness of the left and right sides of the cover body 2 is 0.1 ~ 0.2mm, a spacing groove that runs through cover body 2 is seted up to both sides around the cover body 2, the one end of body 1 inlays the spacing groove of locating cover body 2 and with the export parallel and level of spacing groove, thereby make cover body 2 effectively fix body 1, the end of drawing forth of the foil utmost point ear of a plurality of utmost points advances body 1 hold chamber 10 and encapsulate fixed back with body 1, as shown in figure 2, when the top seal encapsulation of battery, cover body 2 directly is in the position that can make electric core carry out the top seal encapsulation, and, the edge of cover body 2 can melt and mend the top seal encapsulation position of gluing to the battery, thereby has played the effect of preventing to leak the seal to the battery.

Preferably, the length of the accommodating cavity 10 is 0.3-3 mm, the width is 1-6 mm, and the height is 0.09-0.3 mm; the length of the opening end 11 is 0.3-3 mm, and the height is 0.09-0.3 mm.

Preferably, the material of the body 1 is a metal conductive material, when the tab sleeve is used for packaging the positive tab, the material of the body 1 of the tab sleeve is a metal material corresponding to the positive tab, and may be aluminum metal or zinc metal, and when the tab sleeve is used for packaging the negative tab, the material of the body 1 of the tab sleeve is a metal material corresponding to the negative tab, and may be copper metal or copper alloy.

Example 2

The difference between this embodiment and embodiment 1 is that, the cover body 2 is provided with first glue film 21 and second glue film 22, first glue film 21 is connected in second glue film 22, body 1 sets up between first glue film 21 and second glue film 22, first glue film 21 and second glue film 22 set up respectively in body 1's upper and lower both sides and enclose and locate body 1, first glue film 21 and second glue film 22's size equals, first glue film 21 and second glue film 22's material is polypropylene, first glue film 21 and second glue film 22 fuse the formation cover body 2 through the encapsulation of glue film, thereby the flexibility of preparation utmost point earmuff has been improved.

Other structures of this embodiment are the same as those of embodiment 1, and are not described herein again.

Example 3

The present embodiment is different from embodiment 1 in that the cover body 2 is provided with an insulating layer 23 for sealing the battery, wherein a teflon film is provided around the insulating layer 23, thereby preventing the insulating layer 23 from being excessively deformed when heated.

Preferably, the open end 11 is flush with the side of the jacket body 2, and the insulating layer 23 of the jacket body 2 is arranged around the outer wall of the open end 11, so as to improve the sealing performance of the open end 11.

Preferably, the insulating layer 23 extends from the outer wall of the open end 11 to the closed end 12, and the extending length of the insulating layer 23 is 0.3-1.5 mm, which is the length of the insulating layer 23 extending linearly from the outer wall of the open end 11 to the closed end 12.

Preferably, the material of the insulating layer 23 is one of polypropylene, polyethylene terephthalate, or polyethylene naphthalate.

Preferably, the length of the accommodating cavity 10 is 0.6-2 mm, the width is 2-5 mm, and the height is 0.15-0.25 mm; the length of the opening end 11 is 0.6-2 mm, and the height is 0.15-0.25 mm.

Obviously, the utility model discloses need not to roll over the operation of utmost point ear to a plurality of utmost point ears when encapsulating utmost point ear, its packaging stability is good, and it is convenient to encapsulate, and encapsulation efficiency is high, has reduced a plurality of utmost point ears to the proportion that occupies in space, has improved the energy density of electric core effectively, and, the utility model discloses a position that electric core top seal encapsulation can be up to arranging in to the utmost point ear cover to the sealing performance and the security performance of battery have been improved effectively.

Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. An efficient encapsulated pole earmuff, comprising: the battery cover comprises a body (1) and a cover body (2) used for sealing a battery, wherein the body (1) is embedded in the cover body (2), and the body (1) is provided with a containing cavity (10) used for packaging a pole lug.

2. A highly efficient encapsulated pole ear cap as recited in claim 1, wherein: the body (1) is provided with open end (11) and blind end (12), blind end (12) correspond to open end (11), open end (11) with hold chamber (10) intercommunication, open end (11) inlay and locate set body (2), blind end (12) expose in set body (2).

3. A highly efficient encapsulated pole ear cap as claimed in claim 1 or 2, wherein: the length of the accommodating cavity (10) is 0.3-3 mm, the width is 1-6 mm, and the height is 0.09-0.3 mm.

4. A highly efficient encapsulated pole ear cap as recited in claim 2, wherein: the cover body (2) is provided with a first adhesive layer (21) and a second adhesive layer (22), the first adhesive layer (21) is connected to the second adhesive layer (22), and the body (1) is arranged between the first adhesive layer (21) and the second adhesive layer (22).

5. A highly efficient encapsulated pole ear cap as recited in claim 2, wherein: the sheath body (2) is provided with an insulating layer (23) for sealing the battery.

6. A highly efficient encapsulated pole ear cap as recited in claim 5, wherein: the open end (11) with the lateral part parallel and level of the cover body (2), the insulating layer (23) of the cover body (2) encloses and locates the open end (11).

7. A highly efficient encapsulated pole ear cap as recited in claim 6, wherein: the insulating layer (23) follow the outer wall of open end (11) to closed end (12) extend, the extension length of insulating layer (23) is 0.3 ~ 1.5 mm.

8. A highly efficient encapsulated pole ear cap as claimed in any of claims 5 to 7, wherein: the insulating layer (23) is made of one of polypropylene, polyethylene terephthalate or polyethylene naphthalate.

9. A highly efficient encapsulated pole ear cap as recited in claim 1, wherein: the body (1) is made of a conductive material.

10. A highly efficient encapsulated pole ear cap as recited in claim 9, wherein: the body (1) is made of metal.