High-stability insulating mylar film

Abstract

The utility model discloses a high-stability insulating mylar film, which comprises a mylar film main body, the top surface of the mylar film main body is bonded with a heat conduction film, the top surface of the heat conduction film is bonded with a metal film, the top surface of the metal film is bonded with a heat dissipation film, and the top surface of the heat dissipation film is provided with a plurality of rows of heat dissipation grooves. The mylar film comprises a mylar film body, heat dissipation grooves are formed in the mylar film body, bending auxiliary open grooves are formed between every two adjacent rows of heat dissipation grooves, a buffer layer is bonded to the bottom face of the mylar film body, an air cavity is formed in the buffer layer, an adhesive layer is bonded to the bottom face of the buffer layer, and a release film is bonded to the bottom face of the adhesive layer. The LED lamp has a good insulation effect, a buffer protection function and high heat dissipation performance.

Description

Technical Field

[0001] The utility model relates to the technical field of mylar sheets, and particularly relates to a high-stability insulating mylar sheet. Background Art

[0002] The appearance of mylar sheets has various color classifications such as milky white, black, natural color, transparent color, etc. There are various materials for mylar sheets, such as PET mylar sheets, PVC mylar sheets, PC mylar sheets, fireproof mylar sheets, etc., which can be used in motors, capacitors, coils, and cables.

[0003] Currently, during the protection of electronic components by mylar sheets, due to the flow of electricity between electronic components, there is a large amount of current in the electronic components, and the existing mylar sheets have a poor insulation effect on current. When the current is too large, it will cause certain damage to the mylar sheet, thus making it inconvenient to protect the electronic components. In addition, during the use of the existing mylar sheets, the stability is low. When the electronic components are collided, it is extremely easy to damage the mylar sheet, which is not conducive to the use of the mylar sheet, and the heat dissipation effect is poor. The heat between the product fitting part and the mylar sheet is easily concentrated on the surface between the fitting part and the mylar sheet, resulting in local heating of the product. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a high-stability insulating mylar sheet, which has a good insulation effect, a buffer protection function, and high heat dissipation performance.

[0005] The technical solution of the utility model is as follows:

[0006] A high-stability insulating mylar sheet includes a mylar sheet body. A heat-conducting film is adhered to the top surface of the mylar sheet body. A metal soft sheet is adhered to the top surface of the heat-conducting film. A heat-dissipating film is adhered to the top surface of the metal soft sheet. A plurality of columns of heat-dissipating grooves are provided on the top surface of the heat-dissipating film. A bending-assisting slotted groove is provided between adjacent two columns of heat-dissipating grooves. A buffer layer is adhered to the bottom surface of the mylar sheet body. An air cavity is provided in the buffer layer. An adhesive layer is adhered to the bottom surface of the buffer layer. A release film is adhered to the bottom surface of the adhesive layer.

[0007] Further, a carbon fiber braided reinforcement layer is wrapped around the mylar sheet body.

[0008] Further, the heat-conducting film is a graphene heat-conducting film.

[0009] Further, the metal soft sheet is a copper-plated sheet.

[0010] Further, the heat-dissipating film is a graphite film.

[0011] Further, the buffer layer is a rubber buffer layer

[0012] Furthermore, the adhesive layer is acrylic adhesive.

[0013] Furthermore, the release film is a self-adhesive release film.

[0014] Furthermore, the adhesive layers among the heat dissipation film, the metal soft film, the thermal conductive film, the Mylar sheet body, and the buffer layer are all pressure-sensitive hot melt adhesive layers.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: through the setting of the top metal soft film, an effective insulating effect is played in the electronic components to protect the electronic components. At the same time, the metal soft film can protect the electromagnetic interference between the electronic components, shielding invalid electromagnetic waves and preventing interference. At the same time, the heat dissipation film on the top surface of the metal soft film can dissipate heat for the metal soft film. The thermal conductive film between the metal soft film and the Mylar sheet body can transfer the heat in the electronic components to the metal soft film, and then effectively dissipate the heat through the heat dissipation film. The several rows of heat dissipation grooves on the surface of the heat dissipation film can increase the contact area between the heat dissipation film and the air, increase the heat dissipation area, thereby helping to improve the heat dissipation efficiency, and can quickly The heat between the bonding part of the product and the Mylar sheet is dissipated, avoiding the occurrence of local heating of the product due to heat accumulation between the bonding surface and the Mylar sheet, thereby improving the stability of the overall Mylar sheet during use. In addition, the bending auxiliary grooves on the surface of the heat dissipation film can reduce the stress of the Mylar sheet when bending, making the bending action convenient. The carbon fiber woven reinforcement layer on the outside of the Mylar sheet body increases the toughness of the Mylar sheet body, avoiding the Mylar sheet body from being damaged by bending deformation. A buffer layer is also provided at the bottom of the Mylar sheet body, and an air cavity is provided inside the buffer layer. When subjected to external impact, the buffer layer and the internal air cavity are used for buffering protection, which can avoid the Mylar sheet from being compressed and damaged, thereby improving the service life of the Mylar sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A structural cross-sectional view of a high-stability insulating Mylar sheet provided by the utility model;

[0018] Figure 2 It is a schematic structural diagram of the heat dissipation film of the utility model. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] In order to illustrate the technical solutions described in the present utility model, the following will be described through specific embodiments.

[0021] Embodiment

[0022] Please refer to Figure 1 , this embodiment provides a highly stable insulating mylar sheet, which includes a mylar sheet body 1. The mylar sheet body 1 is coated with a carbon fiber braided reinforcement layer 2, which increases the toughness of the mylar sheet body and prevents the mylar sheet body 1 from being damaged due to bending deformation. At the same time, it has good sealing, insulation and anti-corrosion properties. A heat-conducting film 3 is adhered to the top surface of the mylar sheet body 1, a metal soft sheet 4 is adhered to the top surface of the heat-conducting film 3, and a heat-dissipating film 5 is adhered to the top surface of the metal soft sheet 4. The function of the heat-conducting film 3 is to conduct the heat in the electronic component to the metal soft sheet 4, and then dissipate the heat through the heat-dissipating film 5; preferably, the heat-conducting film 3 adopts a graphene heat-conducting film. The graphene heat-conducting film is a heat-conducting material with graphene as the main material, and it has the following main characteristics: ① extremely high heat-conducting performance, the thermal conductivity of graphene itself is extremely high, about 1300 times that of copper; ② thin, light and excellent flexibility, the graphene heat-conducting film has a very small thickness and volume, extremely low adsorption capacity, and is very light. At the same time, it has excellent flexibility and can be bent at a large angle to adapt to various shapes; ③ high temperature resistance and corrosion resistance, the graphene material itself has extremely high chemical stability, and can also operate stably within a relatively high temperature range, not easily affected by thermal expansion and corrosion, and has a very long service life; ④ uniform heat-conducting performance, the graphene heat-conducting film has uniform heat-conducting performance, and the heat transfer speed in all regions is basically the same; preferably, the metal soft sheet 4 adopts a copper-plated sheet, and the metal soft sheet 4 has a good function of shielding electromagnetic waves and can effectively shield electromagnetic waves, and the copper-plated material is preferred; preferably, the heat-dissipating film 5 adopts a graphite film to effectively dissipate heat from the metal soft sheet 4. Further, in combination with Figure 2As shown, the top surface of the heat dissipation film 5 is provided with a plurality of rows of heat dissipation grooves 51, which can increase the contact area between the heat dissipation film 5 and the air, increase the heat dissipation area, thereby helping to improve the heat dissipation efficiency, and can quickly dissipate the heat between the product bonding part and the Mylar sheet, avoiding the occurrence of local heating of the product due to heat accumulation between the bonding part surface and the Mylar sheet, and improving the stability of the entire Mylar sheet when in use. Furthermore, a bending auxiliary slot 52 is provided between two adjacent rows of heat dissipation grooves 51, which can reduce the stress of the Mylar sheet when bending, making the bending action convenient. The bottom surface of the Mylar sheet body 1 is bonded with a buffer layer 6, and an air cavity 61 is provided in the buffer layer 6. The buffer layer 6 is a rubber buffer layer, which itself has a certain buffering effect. The setting of the air cavity 61 can further improve the buffering effect, avoid the Mylar sheet from being compressed and damaged when subjected to external impact, and improve the service life of the Mylar sheet. The bottom surface of the buffer layer 6 is bonded with an adhesive layer 7, which is an acrylic adhesive with certain flame retardancy. The bottom surface of the adhesive layer 7 is bonded with a release film 8, which is a self-adhesive release film, which can protect the adhesive layer 7 and ensure the viscosity of the adhesive layer 7. When in use, the self-adhesive release film can be directly adhered to the electronic component after being torn off. The adhesive layers between the heat dissipation film 5, the metal soft film 4, the thermal conductive film 3, the Mylar sheet body 1, and the buffer layer 6 are all pressure-sensitive hot melt adhesive layers 9. The pressure-sensitive hot melt adhesive layer 9 has strong adhesion and can maintain viscosity at different temperatures, making the connection between each layer tighter and having high tensile strength and temperature resistance.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-stability insulating Mylar sheet, comprising a Mylar sheet body, characterized in that: A thermally conductive film is bonded to the top surface of the Mylar sheet body, a metal soft film is bonded to the top surface of the thermally conductive film, a heat dissipation film is bonded to the top surface of the metal soft film, a plurality of heat dissipation grooves are provided on the top surface of the heat dissipation film, and a bending auxiliary groove is provided between two adjacent columns of heat dissipation grooves, a buffer layer is bonded to the bottom surface of the Mylar sheet body, an air cavity is provided in the buffer layer, an adhesive layer is bonded to the bottom surface of the buffer layer, and a release film is bonded to the bottom surface of the adhesive layer.

2. The high stability insulating Mylar sheet according to claim 1, characterized in that: The Mylar sheet body is coated with a carbon fiber braided reinforcement layer.

3. The high stability insulating Mylar sheet according to claim 1, characterized in that: The thermally conductive film is a graphene thermally conductive film.

4. The high stability insulating Mylar sheet according to claim 1, characterized in that: The metal soft film is a copper-plated film.

5. The high stability insulating Mylar sheet according to claim 1, characterized in that: The heat dissipation film is a graphite film.

6. The high stability insulating Mylar sheet according to claim 1, characterized in that: The buffer layer is a rubber buffer layer.

7. The high stability insulating Mylar sheet according to claim 1, characterized in that: The adhesive layer is acrylic adhesive.

8. The high stability insulating Mylar sheet according to claim 1, characterized in that: The release film is a self-adhesive release film.

9. The high stability insulating Mylar sheet according to claim 1, characterized in that: The adhesive layers among the heat dissipation film, the metal soft film, the thermal conductive film, the Mylar sheet main body and the buffer layer are all pressure-sensitive hot melt adhesive layers.

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