CN214726981U

CN214726981U - Insulating film and electric core structure coating same

Info

Publication number: CN214726981U
Application number: CN202120482650.XU
Authority: CN
Inventors: 黄育祥
Original assignee: Suzhou Dongda Electronic Material Co ltd
Current assignee: Suzhou Dongda Electronic Material Co ltd
Priority date: 2021-03-07
Filing date: 2021-03-07
Publication date: 2021-11-16
Anticipated expiration: 2031-03-07

Abstract

The utility model belongs to the field of insulating films for electric cores, in particular to an insulating film and an electric core structure for coating the insulating film, wherein the insulating film comprises two basic film layers, the two basic film layers are fixedly connected with antistatic layers, and one antistatic layer is fixedly connected with a first insulating flame-retardant layer; through the mutual adaptation of cooperation convex surface that the fire-retardant layer of second insulation set up and the cooperation concave surface that the fire-retardant layer of first insulation was seted up, play the effect that increases the area of contact between two waterproof connection layers, make the contact surface when waterproof connection layer passes through the adhesive linkage bonding bigger, thereby when the adhesive linkage fills the bonding cavity between two waterproof connection layers when the cover surface increases, the recess portion that sets up through waterproof connection layer has also prevented because of two waterproof connection layers the seepage of too much adhesive linkage appears for the plane, thereby effectively guaranteed the stability after the bonding, insulating properties has been guaranteed.

Description

Insulating film and electric core structure coating same

Technical Field

The utility model belongs to electric core is with insulating film field specifically is an electric core structure of insulating film and this insulating film of cladding.

Background

The electric core is an electrochemical electric core with a positive electrode and a negative electrode, and is roughly divided into an aluminum shell electric core, a soft package electric core and a cylindrical electric core, the insulating film is a film capable of ensuring good electric insulation, the film has very high resistivity and breakdown field intensity, and the electronic structure is characterized in that the forbidden band width is large, and the insulating effect is realized by frequently covering the electric core.

When present composite insulation film carries out compound bonding to its waterproof layer that connects, because waterproof layer that connects its contact surface each other is not even enough and the infiltration of colloid appears easily, curing agent filling face volume can directly receive the influence when bonding to cause very easily to drop when later stage covers electric core and uses, make under the cover user state insulation stability also can receive the influence, influenced the stability when using.

Disclosure of Invention

An object of the utility model is to provide an electric core structure of insulating film and this insulating film of cladding to solve the problem that proposes among the above-mentioned background art.

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

the utility model provides an insulating film, includes basic rete, the quantity of basic rete is two, two the equal fixedly connected with antistatic layer of basic rete, one of them antistatic layer fixedly connected with first insulation fire-retardant layer, first insulation fire-retardant layer is equipped with a plurality of cooperation concave surface, another antistatic layer fixedly connected with second insulation fire-retardant layer, the second insulation fire-retardant layer be equipped with a plurality of with cooperation concave surface matched with cooperation convex surface, first insulation fire-retardant layer with the equal fixedly connected with waterproof connection layer on second insulation fire-retardant layer, one side of waterproof connection layer is equipped with a plurality of concave part portion, two be equipped with the adhesive linkage between the waterproof connection layer, two the waterproof connection layer passes through the adhesive linkage bonds fixedly.

As a further aspect of the present invention: and a plurality of anti-skid covering layers are arranged on one side surface of the basic film layer.

As a further aspect of the present invention: an adhesive cavity is formed between the two waterproof connecting layers, and the adhesive cavity is filled with the adhesive layer.

As a further aspect of the present invention: the basic rete is made for the polyimide material, the antistatic layer is made for the polyvinyl chloride material.

As a further aspect of the present invention: the first insulating flame-retardant layer and the second insulating flame-retardant layer are made of PET materials, and the waterproof connecting layer is made of polyurethane materials.

As a further aspect of the present invention: the bonding layer is a composite film bonding curing agent.

As a further aspect of the present invention: the insulating film is coated on the battery cell.

Compared with the prior art, the beneficial effects of the utility model are that:

when the fire-retardant layer of first insulation and the fire-retardant layer of second insulation that set up through antistatic layer and antistatic layer have played fire-retardant insulating effect, the emergence of static phenomenon has been reduced, the mutual adaptation of cooperation concave surface that the fire-retardant layer of cooperation convex surface and the fire-retardant layer of first insulation set up that set up through the fire-retardant layer of second insulation, play the effect that increases the area of contact between two waterproof connection layers, the contact surface when making waterproof connection layer bond through the adhesive linkage is bigger, thereby when the adhesive linkage is filled in the bonding cavity between two waterproof connection layers when the covering surface increases, concave layer portion through the waterproof connection layer setting has also prevented because of two waterproof connection layers the seepage of too much adhesive linkage appears for the plane, thereby effectively guaranteed the stability after bonding, thereby reduce the possibility when electric core covers and appears droing when using, insulating properties has been guaranteed.

Drawings

FIG. 1 is a schematic view of an insulating film structure;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view showing the structure of a water-repellent connecting layer and a recessed portion in an insulating film;

fig. 4 is a cross-sectional view of the present solution after the insulating film is covered on the battery core.

In the figure: 1. a base film layer; 11. an anti-slip cover layer; 2. an antistatic layer; 3. a first insulating flame retardant layer; 31. a mating concave surface; 4. a second insulating flame retardant layer; 41. a convex surface is matched; 5. a waterproof connecting layer; 51. a recessed portion; 52. an adhesive layer; 53. bonding the cavity; 6. a battery cell.

Detailed Description

Please refer to fig. 1-4, in an embodiment of the present invention, an insulating film, including a base film 1, the number of the base film 1 is two, two base films 1 are fixedly connected with antistatic layers 2, one of the antistatic layers 2 is fixedly connected with a first insulating flame-retardant layer 3, the first insulating flame-retardant layer 3 is provided with a plurality of matching concave surfaces 31, the other antistatic layer 2 is fixedly connected with a second insulating flame-retardant layer 4, the second insulating flame-retardant layer 4 is provided with a plurality of matching convex surfaces 41 matched with the matching concave surfaces 31, the first insulating flame-retardant layer 3 and the second insulating flame-retardant layer 4 are both fixedly connected with a waterproof connecting layer 5, one side of the waterproof connecting layer 5 is provided with a plurality of concave parts 51, an adhesive layer 52 is provided between the two waterproof connecting layers 5, and the two waterproof connecting layers 5 are adhered and fixed by the adhesive layer 52; the anti-skid covering layer 11 has the advantages that the resistance of the contact between a human body and the base film layer 1 is increased, the anti-skid effect is achieved, the first insulating flame-retardant layer 3 and the second insulating flame-retardant layer 4 which are arranged through the antistatic layer 2 and the antistatic layer 2 have the flame-retardant and insulating effects, the generation of static phenomena is reduced, the whole waterproof effect covering the battery electric core 6 is increased through the arrangement of the waterproof connecting layer 5, the possibility of short circuit of the battery electric core 6 is reduced, the contact area between the two waterproof connecting layers 5 is increased through the mutual adaptation of the matching convex surface 41 arranged through the second insulating flame-retardant layer 4 and the matching concave surface 31 arranged through the first insulating flame-retardant layer 3, the contact surface is larger when the waterproof connecting layers 5 are bonded through the bonding layer 52, the covering surface is increased when the bonding layer 52 is filled in the bonding cavity 53 between the two waterproof connecting layers 5, the concave part 51 arranged through the waterproof connecting layer 5 also prevents the leakage of too many bonding layers 52 caused by the fact that the two waterproof connecting layers 5 are planes, thereby effectively ensuring the stability after bonding, reducing the possibility of falling off when the covering electric core is used and ensuring the insulating property.

In fig. 4: one side surface of the basic film layer 1 is provided with a plurality of anti-skid covering layers 11; the anti-slip covering layer 11 is arranged to increase the resistance of a human body when contacting with the basic film layer 1 and increase the friction force to achieve an anti-slip effect, so that the anti-slip covering layer is not easy to slip when an operator covers the battery cell 6 and takes the battery cell 6.

In fig. 1: an adhesive cavity 53 is formed between the two waterproof connecting layers 5, the adhesive layer 52 is filled in the adhesive cavity 53, and the adhesive layer 52 is a composite film adhesive curing agent; mutual joint adaptation when bonding of cooperation convex surface 41 that the fire-retardant layer 3 of cooperation that sets up through second insulating fire-retardant layer 4 and first insulating fire-retardant layer 3 played the effect that increases the area of contact between two waterproof connection layers 5 for the contact surface when waterproof connection layer 5 bonds through adhesive linkage 52 is bigger, thereby cover face when making adhesive linkage 52 fill bonding cavity 53 between two waterproof connection layers 5 increase.

In fig. 2: the base film layer 1 is made of polyimide, and the antistatic layer 2 is made of polyvinyl chloride; the polyimide material does not have obvious melting point, and has high insulating properties, is commonly used as the preparation of insulating film basic unit, and the polyvinyl chloride material has the effect of showing reduction plastic products surface resistance, and antistatic high efficiency is lasting, and is compatible with the resin, does not influence the processing and the performance of use of goods to make antistatic layer 2 play the effect that increases antistatic effect.

In fig. 2 and 3: the first insulating flame-retardant layer 3 and the second insulating flame-retardant layer 4 are both made of PET materials, and the waterproof connecting layer 5 is made of polyurethane materials; the PET is a milky white or light yellow polymer with high crystallinity, has smooth and glossy surface, good creep resistance, fatigue resistance, abrasion resistance and dimensional stability, small abrasion and high hardness, and has good thermal stability, so that the insulativity and the heat-resisting flame retardance of the first insulating flame-retardant layer 3 and the second insulating flame-retardant layer 4 are ensured, the waterproof connecting layer 5 which is named as polyurethane has good waterproof performance, the integral waterproof effect after covering the battery electric core 6 is increased, and the possibility of short circuit of the battery electric core 6 is reduced.

In fig. 4: including battery electric core 6, battery electric core 6 cladding has the insulating film: through covering battery electricity core 6 behind the above-mentioned insulating film, the possibility that drops between two waterproof connection layer 5 when having reduced later stage cover electric core and using to insulating stability when packing electric core uses is higher.

The utility model discloses a theory of operation is: the first insulating flame-retardant layer 3 and the second insulating flame-retardant layer 4 which are arranged through the antistatic layer 2 and the antistatic layer 2 play roles in increasing the whole waterproof effect after covering the battery cell 6 and reducing the possibility of short circuit of the battery cell 6, the matching convex surface 41 arranged through the second insulating flame-retardant layer 4 is mutually matched with the matching concave surface 31 arranged on the first insulating flame-retardant layer 3 to play a role in increasing the contact area between the two waterproof connecting layers 5, so that the contact surface of the waterproof connecting layers 5 when being bonded through the bonding layer 52 is larger, the coverage surface is increased when the bonding layer 52 is filled in the bonding cavity 53 between the two waterproof connecting layers 5, and the leakage of the bonding layer 52 caused by the fact that the two waterproof connecting layers 5 are planes is also prevented through the concave layer part 51 arranged on the waterproof connecting layer 5, thereby effectively guaranteeing the stability after bonding, reducing the possibility of falling off when the covering electric core is used, and guaranteeing the insulating property.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an insulating film, a serial communication port, including basic rete (1), the quantity of basic rete (1) is two, two equal fixedly connected with antistatic layer (2) of basic rete (1), one of them antistatic layer (2) fixedly connected with first fire-retardant layer of insulation (3), first fire-retardant layer of insulation (3) are equipped with a plurality of cooperation concave surface (31), another antistatic layer (2) fixedly connected with second fire-retardant layer of insulation (4), second fire-retardant layer of insulation (4) be equipped with a plurality of with cooperation concave surface (31) matched with cooperation convex surface (41), first fire-retardant layer of insulation (3) with the equal fixedly connected with waterproof connection layer (5) of second fire-retardant layer (4), one side of waterproof connection layer (5) is equipped with a plurality of concave part (51), two be equipped with adhesive linkage (52) between waterproof connection layer (5), the two waterproof connecting layers (5) are fixedly bonded through the bonding layer (52).

2. An insulating film according to claim 1, characterised in that one side of the base film layer (1) is provided with a number of anti-slip cover layers (11).

3. The insulating film according to claim 1, wherein an adhesive cavity (53) is formed between the two waterproof connecting layers (5), and the adhesive layer (52) is filled in the adhesive cavity (53).

4. Insulating film according to claim 1, characterized in that said base film (1) is made of polyimide and said antistatic layer (2) is made of polyvinyl chloride.

5. Insulating film according to claim 1, characterized in that said first insulating and flame-retardant layer (3) and said second insulating and flame-retardant layer (4) are both made of PET and said waterproof connecting layer (5) is made of polyurethane.

6. The insulating film according to claim 1, wherein the adhesive layer (52) is a composite film adhesive curing agent.

7. A cell structure, characterized in that it comprises a battery cell (6), the outer surface of the battery cell (6) being coated with an insulating film according to any of claims 1 to 6.