CN211959939U - Flexible heat conducting strip with electromagnetic shielding function - Google Patents
Flexible heat conducting strip with electromagnetic shielding function Download PDFInfo
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- CN211959939U CN211959939U CN202020959953.1U CN202020959953U CN211959939U CN 211959939 U CN211959939 U CN 211959939U CN 202020959953 U CN202020959953 U CN 202020959953U CN 211959939 U CN211959939 U CN 211959939U
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Abstract
The utility model discloses a flexible heat conducting strip with electromagnetic shielding function, which comprises an upper heat conducting layer and an electromagnetic shielding layer, wherein the lower heat conducting layer is arranged between the upper heat conducting layer and the lower heat conducting layer; the electromagnetic shielding layer comprises a copper wire net for absorbing electromagnetic waves, a grounding wire connected with the copper wire net for eliminating electrons and a magnetic powder layer for shielding a magnetic field.
Description
Technical Field
The utility model relates to an electrical apparatus original paper heat dissipation technical field especially relates to a flexible conducting strip with electromagnetic shield function.
Background
The 3C products such as notebook computers, GPS, ADSL, mobile phones and the like which are modified according to the living standard of people become necessary products for life, noise is generated due to high-frequency electromagnetic wave interference, the communication quality is influenced, if a human body is exposed to a strong electromagnetic field for a long time, the human body is likely to be susceptible to cancer lesion, devices which need to prevent magnetic field interference and magnetic field generation are arranged on a circuit board, and heat needs to be conducted away in time to avoid the phenomenon that the temperature is too high and electric appliance elements are burnt; the common heat conducting sheet usually has only a heat conducting function but does not have an electromagnetic shielding function, and the normal work of an electric appliance element is often influenced by the interference of a surrounding magnetic field.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing a flexible heat conducting strip with electromagnetic shielding function to solve the above problems.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a pair of flexible conducting strip with electromagnetic shield function, its characterized in that: comprises an upper heat conduction layer, a lower heat conduction layer and an electromagnetic shielding layer arranged between the upper heat conduction layer and the lower heat conduction layer; the electromagnetic shielding layer comprises a copper wire net for absorbing electromagnetic waves, a grounding wire connected with the copper wire net for eliminating electrons and a magnetic powder layer for shielding a magnetic field.
Further, a first dustproof film covers the outer side of the upper heat conduction layer.
Furthermore, the outer side of the lower heat conduction layer is provided with an adhesive layer for adhering the heat conduction sheet to the electronic device and a second dustproof film covering the outer side of the adhesive layer and protecting the adhesive layer; the bonding layer is made of heat-conducting glue with good heat conductivity.
Further, the upper heat conduction layer and the lower heat conduction layer are made of flexible heat conduction materials.
The utility model has the advantages that:
a flexible heat conducting strip with electromagnetic shielding function is additionally provided with an electromagnetic shielding layer in a heat conducting strip, a copper wire network in the electromagnetic shielding layer can enable an interference field to form eddy current in a shielding body and generate reflection on an interface between the shielding body and a protected space, so that the field intensity value of the interference field in the protected space is greatly weakened, the interference of external electromagnetism on electronic devices is avoided, and meanwhile, the influence of the electromagnetism generated by the electronic devices on human bodies is avoided; meanwhile, the grounding wire is connected to the copper wire net, so that electrons generated by the electric appliance can be conducted away in time, and the harm caused by static electricity is avoided; magnetic powder is added into the heat conducting sheet, and magnetic field is generated by the magnetic powder, so that magnetic force lines can be limited in the shielding body, and interference of external magnetic force lines on internal electronic devices can be avoided.
Drawings
Fig. 1 is a schematic structural view of a flexible heat conducting strip with electromagnetic shielding function of the present invention.
Reference numbers in the figures:
1. an upper heat conducting layer; 11. a first dust-proof film; 2. a lower heat conducting layer; 21. an adhesive layer; 22. a second dust-proof film; 3. an electromagnetic shielding layer; 31. a copper wire mesh; 32. a ground line; 33. a magnetic powder layer.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the flexible heat conducting sheet with electromagnetic shielding function provided in this embodiment includes an upper heat conducting layer 1, a lower heat conducting layer 2, and an electromagnetic shielding layer 3 disposed between the upper heat conducting layer 1 and the lower heat conducting layer 2; the electromagnetic shielding layer 3 includes a copper wire mesh 31 for absorbing electromagnetic waves, a ground wire 32 connected to the copper wire mesh 31 for removing electrons, and a magnetic powder layer 33 for shielding a magnetic field.
Further, a first dustproof film 11 covers the outer side of the upper heat conduction layer 1.
Further, an adhesive layer 21 for adhering the heat conducting sheet to the electronic device and a second dustproof film 22 covering the adhesive layer 21 and protecting the adhesive layer 21 are arranged on the outer side of the lower heat conducting layer 2; the material of the adhesive layer 21 is a heat-conducting glue with good heat conductivity.
Further, the upper heat conduction layer 1 and the lower heat conduction layer 2 are made of flexible heat conduction materials.
The working principle is as follows:
a flexible heat conducting strip with electromagnetic shielding function adds an electromagnetic shielding layer 3 in a heat conducting strip, a copper wire net 31 in the electromagnetic shielding layer 3 can enable an interference field to form a vortex in a shielding body and generate reflection on an interface between the shielding body and a protected space, thereby greatly weakening the field intensity value of the interference field in the protected space, avoiding the interference of external electromagnetism on electronic devices and avoiding the influence of the electromagnetism generated by the electronic devices on human bodies; meanwhile, the grounding wire 32 is connected to the copper wire net 31, so that electrons generated by the electric appliance can be conducted away in time to avoid damage caused by static electricity; the magnetic powder layer 33 formed by adding the magnetic powder into the heat conducting sheet can limit the magnetic force lines in the shielding body by utilizing the magnetic field generated by the magnetic powder and simultaneously avoid the interference of the external magnetic force lines on the internal electronic devices; the first dustproof film 11 is arranged on the upper side of the upper heat conduction layer 1, so that the heat conduction sheet is prevented from contacting with dust in the air, and the heat conduction effect is prevented from being influenced by the dust; an adhesive layer 21 is arranged on the outer side of the lower heat conduction layer 2, the adhesive layer 21 is sealed by a second dustproof film 22, and the heat conduction sheet can be attached to an electrical appliance by tearing the second dustproof film 22 in use.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (4)
1. The utility model provides a flexible conducting strip with electromagnetic shield function which characterized in that: comprises an upper heat conduction layer (1), a lower heat conduction layer (2) and an electromagnetic shielding layer (3) arranged between the upper heat conduction layer (1) and the lower heat conduction layer (2); the electromagnetic shielding layer (3) comprises a copper wire net (31) for absorbing electromagnetic waves, a grounding wire (32) which is connected with the copper wire net (31) and is used for eliminating electrons, and a magnetic powder layer (33) for shielding a magnetic field.
2. The flexible heat conducting sheet with electromagnetic shielding function according to claim 1, wherein: and a first dustproof film (11) covers the outer side of the upper heat conduction layer (1).
3. The flexible heat conducting sheet with electromagnetic shielding function according to claim 1, wherein: an adhesive layer (21) for adhering the heat conducting sheet to an electronic device and a second dustproof film (22) covering the outer side of the adhesive layer (21) and protecting the adhesive layer (21) are arranged on the outer side of the lower heat conducting layer (2); the material of the bonding layer (21) is heat-conducting glue with good heat conductivity.
4. The flexible heat conducting sheet with electromagnetic shielding function according to claim 1, wherein: the upper heat conduction layer (1) and the lower heat conduction layer (2) are made of flexible heat conduction materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020959953.1U CN211959939U (en) | 2020-05-29 | 2020-05-29 | Flexible heat conducting strip with electromagnetic shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020959953.1U CN211959939U (en) | 2020-05-29 | 2020-05-29 | Flexible heat conducting strip with electromagnetic shielding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211959939U true CN211959939U (en) | 2020-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020959953.1U Active CN211959939U (en) | 2020-05-29 | 2020-05-29 | Flexible heat conducting strip with electromagnetic shielding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211959939U (en) |
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2020
- 2020-05-29 CN CN202020959953.1U patent/CN211959939U/en active Active
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