CN212954974U

CN212954974U - Liner structure with uniform stress

Info

Publication number: CN212954974U
Application number: CN202021742075.4U
Authority: CN
Inventors: 王方敏
Original assignee: Dongguan Taiya Electronic Technology Co ltd
Current assignee: Dongguan Taiya Electronic Technology Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-13
Anticipated expiration: 2030-08-19

Abstract

The utility model provides a liner structure that atress is even, including the cotton layer of bubble, be banded interval and locate the first gum layer of the cotton layer top surface of bubble, and with the parallel banded interval that is of first gum layer lays in the second gum layer of the cotton layer bottom surface of bubble, first gum layer with gum region between the second gum layer distributes with the mutual dislocation of interval region, and the edge aligns each other. First gum layer and second gum layer all are banded interval distribution, can avoid the cotton layer of bubble of this side to collapse and lose elasticity to reduce the gum cost, and set up first gum layer and second gum layer dislocation distribution, can make stress evenly distributed, avoid stress concentration, thereby make the thickness on the cotton layer of bubble can keep for a long time, prolonged the life of liner material.

Description

Liner structure with uniform stress

Technical Field

The utility model relates to a battery liner material technical field specifically indicates a thin liner structure that atress is even.

Background

In batteries or some electronic products, it is often necessary to separate the two parts by a gasket material, such as a gasket material sandwiched between two adjacent cells, and the gasket material is typically foam. When the foam is compressed for use as a liner material, a double-sided glue or a double-sided adhesive tape is usually adopted for enabling the foam to be in close contact with an attached object, but after the foam is used for a long time, glue substances can be soaked in the foam, so that the foam is easy to collapse and lose elasticity, and the mechanical property of the thin liner material is greatly influenced. In order to ensure the elasticity of silica gel foam, the influence of glue on the foam is weakened as much as possible, a local gum mode is applied, but the local gum mode also has the defect that when the foam is compressed, the gum position protrudes, under the same compression condition, the stress on the gum position and the non-gum position is uneven, the stress on the non-gum position is small, the stress is concentrated on the gum position, the performance loss of the foam layer at the gum position can be aggravated due to long-term stress concentration, and the phenomenon is particularly obvious when the thickness of the foam is thinner.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a liner structure that atress is even.

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

the utility model provides an even liner structure of atress, includes the cotton layer of bubble, is banded interval and locates the first gum layer of the cotton layer top surface of bubble, and with the parallel banded interval that is of first gum layer lays in the second gum layer of the cotton layer bottom surface of bubble, first gum layer with the gum region between the second gum layer distributes with the interval region dislocation each other, and the edge aligns each other.

According to a preferable scheme, the thickness of the foam layer is 0.5-10 mm, and the thickness of the first back adhesive layer and the thickness of the second back adhesive layer are both 1-20 micrometers. Further, the thickness of the foam layer is 0.5-4 mm.

In a preferable scheme, the areas of the gum areas of the first gum layer and the second gum layer are 1/4-3/4 of the area of the foam layer on the corresponding side. Further, the width of the interval area of the first back glue layer and the second back glue layer is not more than three times of the width of the back glue area. Further, the width of the interval area at the two end edges of the first back glue layer and/or the second back glue layer is not more than the width of the adjacent back glue area.

According to a preferable scheme, release films are further attached to the outer side surfaces of the first back adhesive layer and the second back adhesive layer.

The beneficial effect of this scheme is: first gum layer and second gum layer all are banded interval distribution, can avoid the cotton layer of bubble of this side to collapse and lose elasticity to reduce the gum cost, and set up first gum layer and second gum layer dislocation distribution, can make stress evenly distributed, avoid stress concentration, thereby make the thickness on the cotton layer of bubble can keep for a long time, prolonged the life of liner material.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic view of a layered structure of a cushion structure in an embodiment.

Detailed Description

The invention is further explained below with reference to the drawings:

refer to fig. 1 and show, a liner structure that atress is even, including the cotton layer 1 of bubble, be banded interval and locate the first gum layer 2 of the cotton layer top surface of bubble, and with the parallel banded interval that is of first gum layer 2 lays in the second gum layer 3 of the cotton layer 1 bottom surface of bubble, first gum layer 2 with regional 100 of gum between the second gum layer 3 and the mutual staggered distribution of interval region 200, and the edge aligns each other. The belt shape of the first back glue layer 2 and the second back glue layer 3 can be a straight belt shape, an S-shaped belt shape, a W-shaped belt shape, a tooth-shaped belt shape and the like; first gum layer 2 and second gum layer 3 all are banded interval distribution, can avoid the cotton layer 1 of bubble of this side to collapse and lose elasticity to reduce the gum cost, and with first gum layer 2 and the setting of second gum layer 3 dislocation distribution, can make stress evenly distributed, avoid stress concentration, thereby make the thickness of the cotton layer 1 of bubble can keep for a long time, prolonged the life of liner material.

In one embodiment, the thickness of the foam layer 1 is 0.5-10 mm, and the thickness of the first back adhesive layer 2 and the thickness of the second back adhesive layer 3 are both 1-20 μm. Further, the thickness of the foam layer 1 is 0.5-4 mm. Under the condition that the foam layer 1, the first back glue layer 2 and the second back glue layer 3 are all very thin, the structure can obviously prolong the service life of the gasket material.

In one embodiment, the areas of the adhesive areas 100 of the first adhesive backing layer 2 and the second adhesive backing layer 3 are 1/4-3/4 of the areas of the foam layers 1 on the corresponding sides. Further, the width of the spacing region 200 of the first adhesive tape layer 2 and the second adhesive tape layer 3 is not more than three times of the width of the adhesive tape region 100. Further, the width of the spacing region 200 at the two end edges of the first adhesive tape layer 2 and/or the second adhesive tape layer 3 is not greater than the width of the adjacent adhesive tape region 100. The adhesive-backed area 100 and the spacing area 200 are distributed in area, so that the balance between the overall adhesion and the stress balance can be achieved.

In one embodiment, the outer surfaces of the first back adhesive layer 2 and the second back adhesive layer 3 are further provided with release films 4. The release film 4 is used for keeping the viscosity of the first back adhesive layer 2 and the second back adhesive layer 3 in the transportation and storage process and can be torn off when in use. The first back glue layer 2, the second back glue layer 3 and the release film 4 are made of face pressing double-faced adhesive tape, so that the cost is low and the adhesive tape is simple.

The above description is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an even liner structure of atress, its characterized in that is banded interval including the cotton layer of bubble and locates the first gum layer of the cotton layer top surface of bubble, and with the parallel banded interval that is of first gum layer lays in the second gum layer of the cotton layer bottom surface of bubble, first gum layer with the mutual staggered distribution of gum region and interval region between the second gum layer, and the edge aligns each other.

2. A uniformly loaded gasket construction as set forth in claim 1 wherein: the thickness of the foam layer is 0.5-10 mm, and the thickness of the first back adhesive layer and the thickness of the second back adhesive layer are both 1-20 micrometers.

3. A uniformly loaded gasket construction as set forth in claim 2 wherein: the thickness of the foam layer is 0.5-4 mm.

4. A uniformly loaded gasket construction as set forth in claim 1 wherein: the area of the gum area of the first gum layer and the second gum layer is 1/4-3/4 of the area of the foam layer on the corresponding side.

5. A uniformly loaded gasket construction as set forth in claim 4 wherein: the width of the interval area of the first back glue layer and the second back glue layer is not more than three times of the width of the back glue area.

6. A uniformly loaded gasket construction as set forth in claim 5 wherein: the width of the interval area at the two end edges of the first back glue layer and/or the second back glue layer is not more than the width of the adjacent back glue area.

7. A uniformly loaded gasket construction as set forth in claim 1 wherein: the first gum layer and the outer side surface of the second gum layer are also provided with release films in an attaching mode.