CN221283664U - Electromagnetic wave shielding device - Google Patents
Electromagnetic wave shielding device Download PDFInfo
- Publication number
- CN221283664U CN221283664U CN202323052834.0U CN202323052834U CN221283664U CN 221283664 U CN221283664 U CN 221283664U CN 202323052834 U CN202323052834 U CN 202323052834U CN 221283664 U CN221283664 U CN 221283664U
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- CN
- China
- Prior art keywords
- electromagnetic
- metal frame
- frame supporting
- copper alloy
- layer
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- 239000010410 layer Substances 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002346 layers by function Substances 0.000 claims abstract description 22
- 238000007747 plating Methods 0.000 claims abstract description 19
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 6
- 239000003973 paint Substances 0.000 claims description 4
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model belongs to the technical field of electromagnetic shielding, and particularly relates to an electromagnetic wave shielding device. An electromagnetic wave shielding device, comprising: a copper alloy plating electromagnetic shielding functional layer, a metal frame supporting layer and a filter; the metal frame supporting layer is arranged on a target object of the electronic element generating electromagnetic interference; the copper alloy plating electromagnetic shielding functional layer is covered on the metal frame supporting layer; the filter is arranged at the power supply and communication line outgoing position of the electronic element generating electromagnetic interference. The copper alloy plating electromagnetic shielding functional layer has high conductivity, can well shield electromagnetic interference, has good elasticity and is easy to completely cover the metal frame supporting layer. Filters are added at the power supply and communication lines of electronic components generating electromagnetic interference to prevent electromagnetic leakage as antennas.
Description
Technical Field
The utility model belongs to the technical field of electromagnetic shielding, and particularly relates to an electromagnetic wave shielding device.
Background
The dense application of electronic devices in electronic products in complex systems brings about ubiquitous electromagnetic interference, and how to shield the electromagnetic interference is an increasingly important subject. In the traditional electromagnetic shielding method, the problem that the electromagnetic leakage exists at the external connection position of the lead to form an antenna and the problem that the leakage at the joint position of the shielding frame and the shielding effect of the shielding layer are poor exist.
Disclosure of utility model
The purpose of the utility model is that: in order to solve the problems that in the traditional electromagnetic shielding method, the electromagnetic leakage exists at the external connection part of the lead to form an antenna, and the leakage at the joint part of the shielding frame and the shielding effect of the shielding layer are poor, the electromagnetic wave shielding device is provided.
The technical scheme of the utility model is as follows: an electromagnetic wave shielding device, comprising: a copper alloy plating electromagnetic shielding functional layer, a metal frame supporting layer and a filter.
The metal frame support layer is arranged on an object of the electronic element generating electromagnetic interference and surrounds the electronic element generating electromagnetic interference.
The copper alloy plating electromagnetic shielding functional layer is covered on the metal frame supporting layer; the copper alloy plating electromagnetic shielding functional layer has strong conductivity, can well shield electromagnetic interference, has good elasticity and is easy to completely cover the metal frame supporting layer.
The filter is arranged at the power supply and communication line outgoing position of the electronic element generating electromagnetic interference, and prevents the electromagnetic interference from generating electromagnetic leakage when the filter is used as an antenna.
On the basis of the scheme, further, the material of the metal frame supporting layer is stainless steel 304 or austenitic stainless steel.
On the basis of the scheme, the thicknesses of the copper alloy plating electromagnetic shielding functional layer and the metal frame supporting layer are 0.4mm.
On the basis of the scheme, further, the joint of the copper plating alloy electromagnetic shielding functional layer is coated with conductive paint so as to reduce the electrical discontinuity of the structure.
On the basis of the scheme, further, the metal frame supporting layer is of a rectangular frame structure, and the filters are arranged on the left side and the right side of the frame structure.
The beneficial effects are that:
(1) The copper alloy plating electromagnetic shielding functional layer has high conductivity, can well shield electromagnetic interference, has good elasticity and is easy to completely cover the metal frame supporting layer.
(2) The utility model adds a filter at the power supply and communication line of the electronic element generating electromagnetic interference to prevent electromagnetic leakage caused by the filter as an antenna.
(3) The utility model coats conductive paint on the seam of the copper plating alloy electromagnetic shielding functional layer, thereby reducing the electrical discontinuity of the structure.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
Wherein: 1-copper alloy plating electromagnetic shielding functional layer, 2-metal frame supporting layer and 3-filter.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the electromagnetic wave shielding apparatus includes: a copper alloy plating electromagnetic shielding functional layer 1, a metal frame supporting layer 2 and a filter 3.
The metal frame support layer 2 is provided on an object of an electronic component generating electromagnetic interference, surrounding the electronic component generating electromagnetic interference. The material of the metal frame support layer 2 is stainless steel 304 or austenitic stainless steel, and the thickness is 0.4mm.
The copper-plated alloy electromagnetic shielding functional layer 1 is covered on the metal frame supporting layer 2, namely the copper-plated alloy electromagnetic shielding functional layer 1 and the metal frame supporting layer 2 are laminated; the copper alloy plating electromagnetic shielding functional layer 1 has strong conductivity, can well shield electromagnetic interference, has good elasticity, and is easy to completely cover the metal frame supporting layer 2. The mesh density of the copper alloy plating electromagnetic shielding functional layer 1 is determined according to the wavelength of electromagnetic waves generated by the electronic component, and the thickness is 0.4mm. The seam of the copper alloy plating electromagnetic shielding functional layer 1 is coated with conductive paint to reduce the electrical discontinuity of the structure.
The filter 3 is provided at a power supply and communication line outgoing position of an electronic component generating electromagnetic interference, and prevents electromagnetic leakage from occurring as an antenna.
In this example, the metal frame support layer 2 is a rectangular frame structure, and when the metal frame support layer is lapped by screws or riveting, the metal frame support layer should be lapped at the middle part of the seam at first, and then gradually extend towards the two ends so as to prevent the bending of the metal surface; while also ensuring that the tightening screw has sufficient pressure against the metal frame support layer 2 to maintain surface contact in the presence of deformation stresses, impacts, vibrations.
The filters 3 are arranged on opposite sides of the frame structure (i.e. left and right sides as shown). The joint of the copper alloy plating electromagnetic shielding functional layer 1 and the metal frame supporting layer 2 is required to ensure metal-to-metal contact, so as to prevent leakage and radiation of electromagnetic energy.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (5)
1. An electromagnetic wave shielding device, characterized by comprising: a copper alloy plating electromagnetic shielding functional layer (1), a metal frame supporting layer (2) and a filter (3);
The metal frame supporting layer (2) is arranged on an object of an electronic element generating electromagnetic interference;
The copper alloy plating electromagnetic shielding functional layer (1) is covered on the metal frame supporting layer (2);
The filter (3) is arranged at the power supply and communication line outgoing position of the electronic element generating electromagnetic interference.
2. An electromagnetic wave shielding device according to claim 1, characterized in that the material of the metal frame support layer (2) is stainless steel 304 or austenitic stainless steel.
3. An electromagnetic wave shielding device according to claim 1 or 2, characterized in that the thickness of the copper alloy plating electromagnetic shielding functional layer (1) and the metal frame supporting layer (2) are both 0.4mm.
4. An electromagnetic wave shielding device according to claim 1 or 2, characterized in that the seam of the copper alloy plated electromagnetic shielding functional layer (1) is coated with a conductive paint.
5. An electromagnetic wave shielding device according to claim 1 or 2, characterized in that the metal frame support layer (2) is a rectangular frame structure, and the filters (3) are arranged on the left and right sides of the frame structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323052834.0U CN221283664U (en) | 2023-11-10 | 2023-11-10 | Electromagnetic wave shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323052834.0U CN221283664U (en) | 2023-11-10 | 2023-11-10 | Electromagnetic wave shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221283664U true CN221283664U (en) | 2024-07-05 |
Family
ID=91694851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323052834.0U Active CN221283664U (en) | 2023-11-10 | 2023-11-10 | Electromagnetic wave shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221283664U (en) |
-
2023
- 2023-11-10 CN CN202323052834.0U patent/CN221283664U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |