CN218345376U

CN218345376U - Flame-retardant EMI shielding adhesive tape based on metal printing ink

Info

Publication number: CN218345376U
Application number: CN202222470916.6U
Authority: CN
Inventors: 刘超; 李用军
Original assignee: Hubei Fuheguan Electronic Materials Co ltd
Current assignee: Hubei Fuheguan Electronic Materials Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-20
Anticipated expiration: 2032-09-15

Abstract

The utility model provides a fire-retardant type EMI shielding sticky tape based on metal-ink relates to shielding sticky tape technical field, including the sticky tape body, the sticky tape body includes the basic unit, the top of basic unit is equipped with fire-retardant layer, heat dissipation layer, conductive ink layer and metallic shield layer in proper order, the bottom of basic unit is equipped with first heat-conducting layer, gluing layer and second heat-conducting layer in proper order, and the second heat-conducting layer is located the both sides on gluing layer, and the bottom surface of second heat-conducting layer and the bottom surface on gluing layer are on same horizontal plane. Through first heat-conducting layer and second heat-conducting layer, first heat-conducting layer absorbs electrical components's heat itself earlier, then through overheated transmission, transmits the second heat-conducting layer, has thermal loss and gives off at the in-process of heat transmission, concentrates the heat dissipation through the cooperation on heat dissipation layer at last, improves the radiating efficiency to can guarantee that the sticky tape body can not influence electrical components's work under the condition of shielding yet.

Description

Flame-retardant EMI shielding adhesive tape based on metal printing ink

Technical Field

The utility model relates to a shielding sticky tape technical field especially relates to a fire-retardant type EMI shielding sticky tape based on metal printing ink.

Background

With the advent of the digital age, electronic products such as notebook computers, palm computers, mobile phones, copiers and the like enter thousands of households, but the products can generate noise due to interference of high-frequency electromagnetic waves, influence the use quality, and can be susceptible to cancer lesions when a human body is exposed to a strong electromagnetic field for a long time, so that the electromagnetic interference prevention is imperative, and shielding is to isolate metal between two space areas so as to control the induction and radiation of an electric field, a magnetic field and electromagnetic waves from one area to the other area. Each component in the electronic product needs to be pasted and fixed in a certain process, and an EMI shielding protective adhesive tape needs to be used for pasting in the process.

In the use process of the existing EMI shielding protection adhesive tape, on one hand, the heat dissipation effect is not good, and on the other hand, the effect in the shielding aspect needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a flame-retardant EMI shielding adhesive tape based on metal printing ink.

In order to realize the purpose, the utility model adopts the following technical scheme: the utility model provides a fire-retardant type EMI shields sticky tape based on metal printing ink, includes the sticky tape body, the sticky tape body includes the basic unit, the top of basic unit is equipped with fire-retardant layer, heat dissipation layer, conductive ink layer and metal shielding layer in proper order, the bottom of basic unit is equipped with first heat-conducting layer, gluing layer and second heat-conducting layer in proper order, and the second heat-conducting layer is located the both sides on gluing layer, and the bottom surface on bottom surface and the gluing layer of second heat-conducting layer on same horizontal plane.

Preferably, the heat dissipation layer is filled with graphene nets, and the graphene nets are arranged alternately.

Preferably, the base layer is made of PET materials in a thermoplastic mode.

Preferably, the first heat conducting layer and the second heat conducting layer are internally filled with resin and graphite sheets.

Preferably, the material on fire-retardant layer is the polyimide film, and the thickness on fire-retardant layer is 50um 10%.

Preferably, the thickness of the first heat conduction layer, the second heat conduction layer and the heat dissipation layer is 10um +/-10%.

Advantageous effects

The utility model discloses in, set up first heat-conducting layer and second heat-conducting layer in the sticky tape body, after the sticky tape body bonds through the gluing layer, electrical components in the operation process all can produce certain heat, on the one hand under the condition of guaranteeing electrical components normal work, the cooperation through metal shielding layer and the conductive ink layer in the sticky tape body shields signal interference, can make electrical components not receive the interference at the in-process of work, on the other hand can not be because the sticky tape body to electrical components body and the heat dissipation problem that produces in the shielded, consequently, through first heat-conducting layer and second heat-conducting layer, first heat-conducting layer absorbs electrical components's heat itself earlier, then through overheated transmission, transmit the second heat-conducting layer, in-process at the heat transfer has thermal loss and gives off, concentrate the heat dissipation through the cooperation on heat dissipation layer at last, the efficiency of heat dissipation is improved, thereby can guarantee that the sticky tape body can not influence electrical components's work under the shielded condition yet.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a plan view of the present invention.

Illustration of the drawings:

1. a flame retardant layer; 2. a heat dissipation layer; 3. a conductive ink layer; 4. a metal shielding layer; 5. a base layer; 6. a first heat conducting layer; 7. an adhesive layer; 8. a tape body; 9. a second thermally conductive layer.

Detailed Description

In order to make the technical means, creation features, achievement objects and functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1, 2, a fire-retardant type EMI shielding sticky tape based on metal printing ink, including sticky tape body 8, sticky tape body 8 includes basic unit 5, the top of basic unit 5 is equipped with fire-retardant layer 1 in proper order, heat dissipation layer 2, conductive ink layer 3 and metal shielding layer 4, the bottom of basic unit 5 is equipped with first heat-conducting layer 6 in proper order, gluing layer 7 and second heat-conducting layer 9, and second heat-conducting layer 9 is located the both sides of gluing layer 7, and the bottom surface of second heat-conducting layer 9 and the bottom surface of gluing layer 7 are on same horizontal plane, fill the graphite alkene net in heat dissipation layer 2, and the graphite alkene net arranges in turn, inside packing of first heat-conducting layer 6 and second heat-conducting layer 9 has resin and graphite flake, first heat-conducting layer 6, the thickness of second heat-conducting layer 9 and heat dissipation layer 2 is 10um.

Set up first heat-conducting layer 6 and second heat-conducting layer 9 in sticky tape body 8, after sticky tape body 8 bonds through gluing layer 7, electrical components in the operation all can produce certain heat, on the one hand under the circumstances of guaranteeing electrical components normal work, through the cooperation of metal shielding layer 4 and conductive ink layer 3 in sticky tape body 8 shield signal interference, can make electrical components not receive the interference at the in-process of work, on the other hand can not be in the shielding simultaneously because sticky tape body 8 to the electrical components body and the heat dissipation problem that produces, consequently, through first heat-conducting layer 6 and second heat-conducting layer 9, first heat-conducting layer 6 absorbs electrical components's own heat earlier, then through overheated transmission, transmit to second heat-conducting layer 9, there are thermal loss and the diffusion in-process at the heat transfer, concentrate the heat dissipation through the cooperation of heat dissipation layer 2 at last, improve the radiating efficiency, thereby can guarantee that sticky tape body 8 can not influence electrical components's work under the shielded condition yet.

The base layer 5 is made of PET material through thermal molding. The metal shielding layer 4 can be selected from any one of silver foil, copper foil, nickel foil and aluminum foil, the conductive ink layer 3 is made of conductive materials, such as paste ink made of gold, silver, copper, carbon and the like dispersed in a binder, has a certain conductive property, and can be used for printing conductive points or conductive lines.

The material of fire-retardant layer 1 is the polyimide film, and the thickness of fire-retardant layer 1 is 50um, and polyimide chemical property is stable, and polyimide need not add fire retardant just can prevent the burning, through polyamide acid solution curtain coating film forming, tensile back, high temperature imidization, the film is yellow transparent, and relative density 1.39 ~ 1.45, has outstanding high temperature resistant, resistant radiation, resistant chemical corrosion and electrical insulation performance, can use in 250 ~ 280 ℃ air for a long time.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fire-retardant type EMI shielding sticky tape based on metal printing ink, includes sticky tape body (8), its characterized in that: sticky tape body (8) are including basic unit (5), the top of basic unit (5) is equipped with fire-retardant layer (1), heat dissipation layer (2), conductive ink layer (3) and metal shielding layer (4) in proper order, the bottom of basic unit (5) is equipped with first heat-conducting layer (6), gluing layer (7) and second heat-conducting layer (9) in proper order, and second heat-conducting layer (9) are located the both sides of gluing layer (7), and the bottom surface of second heat-conducting layer (9) and the bottom surface of gluing layer (7) are on same horizontal plane.

2. The flame retardant EMI shielding tape based on metal ink according to claim 1, wherein: the heat dissipation layer (2) is filled with graphene nets, and the graphene nets are arranged alternately.

3. The flame retardant EMI shielding tape based on metal ink according to claim 1, wherein: the base layer (5) is made of PET materials in a thermoplastic mode.

4. The flame retardant EMI shielding tape based on metal ink according to claim 1, wherein: the first heat conduction layer (6) and the second heat conduction layer (9) are internally filled with resin and graphite sheets.

5. The flame retardant EMI shielding tape based on metal ink according to claim 1, wherein: the material of fire-retardant layer (1) is the polyimide film, and the thickness of fire-retardant layer (1) is 50um 10%.

6. The flame retardant EMI shielding tape based on metal ink according to claim 1, wherein: the thickness of the first heat conduction layer (6), the second heat conduction layer (9) and the heat dissipation layer (2) is 10um +/-10%.