CN216775104U

CN216775104U - Stretch-proofing polyimide cover film

Info

Publication number: CN216775104U
Application number: CN202122902776.0U
Authority: CN
Inventors: 卜丹峰; 刘乾龙; 刘�英; 赵云露; 孔军; 赵敏刚; 杨玉琴
Original assignee: Changzhou Yuehe Electronics Co ltd
Current assignee: Changzhou Yuehe Electronics Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-06-17
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a stretch-resistant polyimide cover film which comprises a cover film body, wherein a stretch-resistant structure is arranged at the top end of the cover film body, the stretch-resistant structure comprises a first stretch-resistant fiber layer, the first stretch-resistant fiber layer is arranged at the top end of the cover film body, and the front side of the first stretch-resistant fiber layer is movably connected with a second stretch-resistant fiber layer. The first stretch-resistant fiber layer and the second stretch-resistant fiber layer are arranged in the cover film body and respectively penetrate in a staggered mode and are respectively connected with each other, a cavity between the first stretch-resistant fiber layer and the second stretch-resistant fiber layer is adhered through the adhesive layer to support the cover film body in a toughness mode, the elasticity is better when the cover film body is pulled through the arrangement, the stretch-resistant effect is better in use, and the cover film body is not prone to damage during pulling.

Description

Stretch-proofing polyimide cover film

Technical Field

The utility model relates to the technical field of covering films, in particular to an anti-tensile polyimide covering film.

Background

With the development of new generation information technology, electronic devices are being miniaturized and have high performance, and in the assembly process of small electronic devices, the devices are automatically mounted on a printed substrate, and after the electronic devices are accommodated, a cover film as a material cover is laminated on the surface of the electronic devices to protect the electronic devices, and as a cover film material, polyimide is mainly used, which has high temperature and low temperature resistance and is a good film insulation material, but the existing anti-stretching polyimide cover film has many problems or defects:

at present, the traditional polyimide covering film on the market has poor stretch resistance, is easy to damage the film when in use, and brings certain economic loss to the manufacturing industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stretch-resistant polyimide covering film to solve the problem that the stretch-resistant capability proposed in the background art is not good.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a stretch-proofing polyimide coverlay, includes the coverlay body, the top of coverlay body is provided with stretch-proofing structure, stretch-proofing structure includes first stretch-proofing fibrous layer, first stretch-proofing fibrous layer sets up on the top of coverlay body, the positive swing joint of first stretch-proofing fibrous layer has the second to resist the tensile fibrous layer, the cavity has been seted up in the front that the tensile fibrous layer was resisted to the second, the inside fixedly connected with viscose layer of cavity, stretch-proofing structure's top is provided with protective structure, the bottom of coverlay body is provided with can tear the tensile structure.

Preferably, the first stretch-resistant fiber layer and the second stretch-resistant fiber layer are mutually interpenetrated, and the first stretch-resistant fiber layer is movably connected with the second stretch-resistant fiber layer.

Preferably, the shape and size of the cavity are matched with those of the sticky layer, and the cavity is fixedly connected with the sticky layer.

Preferably, protective structure includes high temperature resistant inoxidizing coating, high temperature resistant inoxidizing coating sets up on stretch-proofing structure's top, the resistant coating that decreases is prevented to the positive fixedly connected with of high temperature resistant inoxidizing coating, prevent the positive fixedly connected with banding piece of resistant coating, the positive fixedly connected with pressfitting strake of banding piece.

Preferably, the outer side wall of the edge sealing block is provided with press-fit edge strips, and the press-fit edge strips are arranged and distributed on the outer side wall of the edge sealing block at equal intervals.

Preferably, the tearable structure comprises a waterproof flame-retardant layer, the waterproof flame-retardant layer is arranged at the bottom end of the cover film body, the lines are prevented from being slipped from the front fixedly connected with the waterproof flame-retardant layer, and the tearable film is prevented from being torn from the front fixedly connected with the lines.

Preferably, the outer side wall of the anti-slip threads is provided with a protective tearable film, and the protective tearable film is distributed on the outer side wall of the anti-slip threads at equal intervals.

Compared with the prior art, the utility model has the beneficial effects that: the polyimide covering film has a reasonable structure and has the following advantages:

(1) through the structural design of the anti-stretching structure, the purpose that the anti-stretching effect of the polyimide covering film is good is achieved, when the polyimide covering film is used, the first anti-stretching fiber layer and the second anti-stretching fiber layer which are arranged inside the covering film body are respectively penetrated in a staggered mode and are connected with each other respectively, and a cavity between the first anti-stretching fiber layer and the second anti-stretching fiber layer is adhered through an adhesive layer to support the covering film body in a toughness mode;

(2) through the structural design of the protective structure, the purpose of good protective effect on the polyimide cover film is achieved, when the cover film body is used and meets high temperature, the high-temperature-resistant protective layer on the surface protects the cover film body to prevent the cover film body from being damaged under high-temperature work, the anti-damage coating prevents the cover film body from being worn and damaged under the condition of permanent time, edge sealing blocks are arranged at the edges, pressing edge strips which are arranged at equal intervals are arranged in the edge sealing blocks to press the edges, so that the cover film body is more efficiently used, the edge positions cannot be torn or dislocated, and people are more relieved in the using process;

(3) through the structural design that can tear the structure, realized covering the purpose that the membrane was convenient for people used to polyimide, when using to cover the membrane body, can tear the membrane and tear the protection, waterproof fire-retardant layer carries out waterproof fire-retardant to jointing equipment, and the line is taken off in the antiskid makes and covers more firm being connected between membrane body and the jointing equipment, prevents to drop, makes people at the in-process of using more reassurance.

Drawings

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

FIG. 2 is a schematic top cross-sectional view of a stretch resistant structure according to the present invention;

FIG. 3 is a schematic top cross-sectional view of a protective structure according to the present invention;

fig. 4 is a schematic top cross-sectional view of a tearable structure of the present invention.

In the figure: 1. covering the membrane body; 2. a stretch resistant structure; 201. a first tensile fiber layer; 202. a second tensile fibrous layer; 203. a cavity; 204. sticking an adhesive layer; 3. a protective structure; 301. a high temperature resistant protective layer; 302. an anti-mar coating; 303. edge sealing blocks; 304. pressing the edge strips; 4. a tearable structure; 401. a waterproof flame-retardant layer; 402. anti-slip lines; 403. protecting the tearable membrane.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a stretch-proofing polyimide cover film comprises a cover film body 1, wherein a stretch-proofing structure 2 is arranged at the top end of the cover film body 1, the stretch-proofing structure 2 comprises a first stretch-proofing fiber layer 201, the first stretch-proofing fiber layer 201 is arranged at the top end of the cover film body 1, the front side of the first stretch-proofing fiber layer 201 is movably connected with a second stretch-proofing fiber layer 202, the front side of the second stretch-proofing fiber layer 202 is provided with a cavity 203, the inside of the cavity 203 is fixedly connected with an adhesive layer 204, the purpose of good stretch-proofing effect of the polyimide cover film is realized through the structural design of the stretch-proofing structure 2, the first stretch-proofing fiber layer 201 and the second stretch-proofing fiber layer 202 which are arranged inside the cover film body 1 are respectively crossed and penetrated through and connected with each other, the cavity 203 between the first stretch-proofing fiber layer 201 and the second stretch-proofing fiber layer 202 is adhered through the adhesive layer 204, the covering film body 1 is supported in a toughness mode, the covering film body 1 is better in elasticity when being pulled through the arrangement, better in anti-stretching effect when being used and not easy to damage when being pulled, so that people can feel more comfortable when using the covering film, the top end of the anti-stretching structure 2 is provided with the protective structure 3, the purpose of good protective effect on the polyimide covering film is realized through the structural design of the protective structure 3, when the covering film body 1 is used and meets high temperature, the high-temperature-resistant protective layer 301 on the surface protects the covering film body 1 to prevent the covering film body 1 from being damaged under high-temperature work, the anti-damage coating 302 prevents the covering film body 1 from being damaged due to abrasion under the condition of permanent time, the edge is provided with the edge sealing blocks 303, the edge sealing blocks 303 are internally provided with the pressing 304 which are arranged at equal intervals, the edge sealing is carried out, so that the covering film body 1 is more efficient to use, the off-edge can not be torn in border position department, make people save more worry at the in-process that uses, the bottom of covering membrane body 1 is provided with can tear and draw structure 4, through can tearing the structural design who draws structure 4, the purpose of being convenient for people to use to polyimide cover membrane has been realized, when using covering membrane body 1, can tear membrane 403 to protect, waterproof fire-retardant layer 401 carries out waterproof fire-retardant to connecting device, line 402 is taken off in the antiskid makes the more firm of being connected between covering membrane body 1 and the connecting device, prevent to drop, make people at the in-process of using more reassurance.

In this embodiment, the first stretch-proofing fiber layer 201 and the second stretch-proofing fiber layer 202 are inserted into each other, and the first stretch-proofing fiber layer 201 and the second stretch-proofing fiber layer 202 are movably connected to each other, so that the elasticity of the cover film body 1 is better when the cover film body is pulled.

In this embodiment, the size of the cavity 203 is matched with the size of the adhesive layer 204, and the cavity 203 is fixedly connected to the adhesive layer 204 to prevent a gap from being formed in the cover film body 1.

In this embodiment, protective structure 3 includes high temperature resistant inoxidizing coating 301, and high temperature resistant inoxidizing coating 301 sets up on stretch-proofing structure 2's top, and resistant damage coating 302 is prevented to the positive fixedly connected with of high temperature resistant inoxidizing coating 301, prevents the positive fixedly connected with banding piece 303 of resistant damage coating 302, and the positive fixedly connected with pressfitting strake 304 of banding piece 303 makes and covers the use of membrane body 1 more high-efficient, and border position department can not tear the deckle edge.

In this embodiment, be provided with pressfitting strake 304 on the lateral wall of banding piece 303, and pressfitting strake 304 is equidistant range distribution on the lateral wall of banding piece 303, and it is more firm to make the edge that covers membrane body 1.

In this embodiment, can tear structure 4 and include waterproof fire-retardant layer 401, waterproof fire-retardant layer 401 sets up in the bottom that covers membrane body 1, and line 402 is taken off in the positive fixedly connected with antiskid of waterproof fire-retardant layer 401, and the positive fixedly connected with protection that line 402 was taken off in the antiskid can tear membrane 403, the people of being convenient for are to the use that covers membrane body 1.

In this embodiment, the outer side wall of the anti-slip pattern 402 is provided with the protective tearable film 403, and the protective tearable film 403 is arranged and distributed at equal intervals on the outer side wall of the anti-slip pattern 402, so as to prevent the cover film body 1 from falling off when in use.

The working principle is as follows: when the protective cover film is used, firstly, when the cover film body 1 is used, the protective tearable film 403 is torn off, the waterproof flame-retardant layer 401 conducts waterproof flame-retardant on the connecting equipment, and the anti-slip lines 402 enable the connection between the cover film body 1 and the connecting equipment to be more stable and firm and prevent falling off;

secondly, when the protective film is used, the first stretch-resistant fiber layer 201 and the second stretch-resistant fiber layer 202 which are arranged inside the protective film body 1 are respectively crossed and penetrated and are respectively connected with each other, the cavity 203 between the first stretch-resistant fiber layer 201 and the second stretch-resistant fiber layer 202 is adhered through the adhesive layer 204 to support the protective film body 1 in a toughness mode, and the elasticity is better when the protective film body 1 is pulled through the arrangement;

finally, meet under the condition of high temperature, surperficial high temperature resistant inoxidizing coating 301 protects covering membrane body 1, prevent to damage it under high temperature work, prevent that resistant damage coating 302 from preventing under the permanent condition of time, take place wearing and tearing to lead to destroying and cover membrane body 1, the edge is provided with banding piece 303, be provided with equidistant range's pressfitting strake 304 in the banding piece 303, carry out the pressfitting to the edge, it is more high-efficient to make to cover membrane body 1 use, the off-limit can not torn in border position department, thereby work is accomplished.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a tensile polyimide covers membrane, includes and covers membrane body (1), its characterized in that: the top of the cover film body (1) is provided with a stretch-resistant structure (2), the stretch-resistant structure (2) comprises a first stretch-resistant fiber layer (201), the first stretch-resistant fiber layer (201) is arranged on the top of the cover film body (1), the front side of the first stretch-resistant fiber layer (201) is movably connected with a second stretch-resistant fiber layer (202), a cavity (203) is formed in the front side of the second stretch-resistant fiber layer (202), a viscose layer (204) is fixedly connected with the inside of the cavity (203), the top of the stretch-resistant structure (2) is provided with a protective structure (3), and the bottom of the cover film body (1) is provided with a tear-resistant structure (4).

2. The stretch resistant polyimide coverlay of claim 1, wherein: the first stretch-resistant fiber layer (201) and the second stretch-resistant fiber layer (202) are mutually interpenetrated, and the first stretch-resistant fiber layer (201) is movably connected with the second stretch-resistant fiber layer (202).

3. The stretch resistant polyimide coverlay of claim 1, wherein: the size and shape of the cavity (203) are matched with those of the adhesive layer (204), and the cavity (203) is fixedly connected with the adhesive layer (204).

4. The stretch resistant polyimide coverlay of claim 1, wherein: protective structure (3) are including high temperature resistant inoxidizing coating (301), high temperature resistant inoxidizing coating (301) set up the top at stretch-proofing structure (2), resistant damage coating (302) are prevented to the positive fixedly connected with of high temperature resistant inoxidizing coating (301), the positive fixedly connected with banding piece (303) of preventing resistant damage coating (302), the positive fixedly connected with pressfitting strake (304) of banding piece (303).

5. The stretch resistant polyimide coverlay of claim 4, wherein: the outer side wall of the edge sealing block (303) is provided with pressing edge strips (304), and the pressing edge strips (304) are arranged and distributed on the outer side wall of the edge sealing block (303) at equal intervals.

6. The stretch resistant polyimide coverlay of claim 1, wherein: can tear structure (4) including waterproof fire-retardant layer (401), waterproof fire-retardant layer (401) sets up in the bottom that covers membrane body (1), line (402) are taken off in the positive fixedly connected with antiskid of waterproof fire-retardant layer (401), the positive fixedly connected with protection tear film (403) that the line (402) were taken off in the antiskid.

7. The stretch resistant polyimide coverlay of claim 6, wherein: the outer side wall of the anti-slip pattern (402) is provided with a protective tearable film (403), and the protective tearable film (403) is distributed on the outer side wall of the anti-slip pattern (402) at equal intervals.