CN205272705U - Compound absorbing material - Google Patents
Compound absorbing material Download PDFInfo
- Publication number
- CN205272705U CN205272705U CN201620011389.4U CN201620011389U CN205272705U CN 205272705 U CN205272705 U CN 205272705U CN 201620011389 U CN201620011389 U CN 201620011389U CN 205272705 U CN205272705 U CN 205272705U
- Authority
- CN
- China
- Prior art keywords
- metallic shield
- medium interlayer
- absorbing material
- shield plate
- composite wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011358 absorbing material Substances 0.000 title claims abstract description 20
- 150000001875 compounds Chemical class 0.000 title abstract 2
- 239000011229 interlayer Substances 0.000 claims abstract description 27
- 210000002421 cell wall Anatomy 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 16
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides a compound absorbing material, includes metallic shield board, medium interlayer and absorbing material, the metallic shield board is platelike structure, sets up flutedly on the surface in one side of metallic shield board, is equipped with the mounting on the surface at the opposite side of metallic shield board, and mounting and groove phase are to setting up, the medium interlayer is fixed with the cell wall of recess in locating the recess of metallic shield board, the space has between the tank bottom of medium interlayer and metallic shield board, absorbing material is the toper structure, and the awl point is outside, and the upper surface at the medium interlayer is fixed to awl dolly straight. The utility model discloses simple structure, with low costs, change convenience have better high frequency and low frequency performance simultaneously.
Description
Technical field
The utility model relates to a kind of absorbing material, is specifically related to a kind of composite wave-suction material.
Background technology
EMC darkroom is used for communication equipment, electronics, electric installation are carried out electromagnetic compatibility (EMC) test, and namely electromagnetic interference EMI test and electromagnetic susceptibility EMS test. For meeting test request, EMC darkroom need to meet following 2 requirements:
(1) there is the metallic shield plate shell that effectiveness of shielding is good, for the electromagnetic field of shielded anechoic chamber outside, make internal space, darkroom from various Electromagnetic Interference;
(2) absorbing material of hertzian wave can be absorbed in each the installation of interior metal shielding slab, with the ELECTROMAGNETIC REFLECTION exempted in darkroom.
EMC darkroom wall common at present and top wall structure, as shown in Figure 1, comprising: metallic shield plate 1, ferrite sheet 2 and tack absorbing material 3; Wherein, ferrite sheet 2 is pasted onto between metallic shield plate 1 and tack absorbing material 3. When the EMC darkroom of this kind of structure being tested, when test frequency is 30MHz��100MHz, reflective level is-15dB��-20dB; When test frequency is 100MHz��1000MHz, reflective level is-20dB��-25dB; When test frequency is 1GHz��40GHz, reflective level is-20dB��-25dB. It thus is seen that this kind of EMC darkroom wall construction has the poor deficiency of high frequency performance.
Practical novel content
For solving the problem, the utility model provides a kind of composite wave-suction material, it is characterised in that, comprise metallic shield plate, medium interlayer and absorbing material;
Described metallic shield plate is tabular structure, has offered groove on the surface in the side of described metallic shield plate, is provided with mounting block on the surface in another side of described metallic shield plate, and described mounting block and described groove are oppositely arranged;
Described medium interlayer is located in the groove of described metallic shield plate, fixes with the cell wall of described groove;
The tapered structure of described absorbing material, outwards, the cone end, is perpendicular to the upper surface of described medium interlayer to cone point.
Further, between the bottom land of described medium interlayer and described metallic shield plate, there is space;
Further, described mounting block is hook.
Further, described medium interlayer is the matrix material of expanded plastic, timber or expanded plastic and timber.
Further, the thickness of described medium interlayer is 10-2000mm.
Further, when test frequency is 30MHz-60MHz, the thickness of described medium interlayer is 450mm.
A kind of composite wave-suction material that the utility model provides, has the following advantages:
(1) do not need to use ferrite sheet, there is structure simple, the advantage that cost is low;
(2) there is the advantage that high frequency performance is good, also there is good low frequency performance simultaneously;
(3) time in an installation as run into local absorbing material needs adjustment improvement, it is possible to dismantle absorbing material easily, efficiently, and without the need to violence damage absorbing material as adhesive means.
Accompanying drawing explanation
Longitudinal diagrammatic cross-section of the EMC darkroom wall that Fig. 1 provides for prior art;
Longitudinal diagrammatic cross-section of the composite wave-suction material that Fig. 2 provides for the utility model;
The using state schematic diagram of the composite wave-suction material that Fig. 3 provides for the utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
As shown in Figure 2, it is provided that a kind of composite wave-suction material, comprises metallic shield plate 4, medium interlayer 5 and absorbing material 6;
Metallic shield plate 4, in tabular structure, has offered groove 41 on the surface in the side of metallic shield plate 4, and this groove 41 can be rectangle, trilateral or other geometries, in the shape of this not confinement groove 41; Being provided with mounting block 42 on the surface in another side of metallic shield plate 4, this mounting block 42 is specially hook in the utility model, naturally it is also possible to be that other play the part of fixed action, and mounting block 42 and groove 41 are oppositely arranged;
Medium interlayer 5 is located in groove 41, fixes with the cell wall of groove 41; Design can improve the low frequency performance of composite wave-suction material like this.
Specifically, medium interlayer 5 is the matrix material of expanded plastic, timber or expanded plastic and timber;
Further, between medium interlayer 5 and the bottom land of metallic shield plate 4, there is space;
In actual applications, by regulating the thickness of medium interlayer 5, can make composite wave-suction material 6 that special frequency channel has good performance, in the utility model, the thickness of medium interlayer 5 is 10-2000mm, when the thickness of medium interlayer 5 is 450mm, the frequency range of 30MHz-60MHz is embodied good performance.
The tapered structure of absorbing material 6, outwards, the cone end, is perpendicular to the upper surface of medium interlayer 5 to cone point, is fixed with medium interlayer 5.
As shown in Figure 3, it may also be useful to during the composite wave-suction material provided in the utility model, first angle steel 7 is installed on the wall in laboratory regularly, then the hook on metallic shield plate 4 is neatly mounted on angle steel 7, formed and inhale ripple wall.
The utility model is compared compared with the prior art in Fig. 1, has following useful effect:
(1) do not need to use ferrite sheet, there is structure simple, the advantage that cost is low;
(2) there is the advantage that high frequency performance is good, also there is good low frequency performance simultaneously;
(3) time in an installation as run into local absorbing material needs adjustment improvement, it is possible to dismantle absorbing material easily, efficiently, and without the need to violence damage absorbing material as adhesive means.
(4) reliably firm, easy construction, neat appearance.
The sequencing of above embodiment only for ease of describing, does not represent the quality of embodiment.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, it is not intended to limit; Although the utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in previous embodiment still can be modified by it, or wherein part technology feature is carried out equivalent replacement; And these amendments or replacement, do not make the spirit and scope of the essence disengaging each embodiment technical scheme of the utility model of appropriate technical solution.
Claims (6)
1. a composite wave-suction material, it is characterised in that, comprise metallic shield plate, medium interlayer and absorbing material;
Described metallic shield plate is tabular structure, has offered groove on the surface in the side of described metallic shield plate, is provided with mounting block on the surface in another side of described metallic shield plate, and described mounting block and described groove are oppositely arranged;
Described medium interlayer is located in the groove of described metallic shield plate, fixes with the cell wall of described groove;
The tapered structure of described absorbing material, outwards, the cone end, is perpendicular to the upper surface of described medium interlayer to cone point.
2. composite wave-suction material as claimed in claim 1, it is characterised in that, between the bottom land of described medium interlayer and described metallic shield plate, there is space.
3. composite wave-suction material as claimed in claim 1, it is characterised in that, described mounting block is hook.
4. composite wave-suction material as claimed in claim 1, it is characterised in that, described medium interlayer is the matrix material of expanded plastic, timber or expanded plastic and timber.
5. composite wave-suction material as claimed in claim 1, it is characterised in that, the thickness of described medium interlayer is 10-2000mm.
6. composite wave-suction material as claimed in claim 1, it is characterised in that, when test frequency is 30MHz-60MHz, the thickness of described medium interlayer is 450mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620011389.4U CN205272705U (en) | 2016-01-05 | 2016-01-05 | Compound absorbing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620011389.4U CN205272705U (en) | 2016-01-05 | 2016-01-05 | Compound absorbing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205272705U true CN205272705U (en) | 2016-06-01 |
Family
ID=56057316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620011389.4U Active CN205272705U (en) | 2016-01-05 | 2016-01-05 | Compound absorbing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205272705U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108901194A (en) * | 2018-08-14 | 2018-11-27 | 桂林电子科技大学 | A kind of Novel ultra wide band wave absorbing device |
| CN112549687A (en) * | 2020-11-19 | 2021-03-26 | 贵州航天建设工程有限公司 | Modified polyimide-based wave-absorbing material for microwave anechoic chamber, wave-absorbing structure and preparation method of wave-absorbing structure |
| CN114156663A (en) * | 2021-12-20 | 2022-03-08 | 重庆邮电大学 | Light and efficient composite wave absorber and preparation method and application thereof |
-
2016
- 2016-01-05 CN CN201620011389.4U patent/CN205272705U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108901194A (en) * | 2018-08-14 | 2018-11-27 | 桂林电子科技大学 | A kind of Novel ultra wide band wave absorbing device |
| CN112549687A (en) * | 2020-11-19 | 2021-03-26 | 贵州航天建设工程有限公司 | Modified polyimide-based wave-absorbing material for microwave anechoic chamber, wave-absorbing structure and preparation method of wave-absorbing structure |
| CN112549687B (en) * | 2020-11-19 | 2021-07-23 | 贵州航天建设工程有限公司 | Modified polyimide-based wave-absorbing material for microwave anechoic chamber, wave-absorbing structure and preparation method of wave-absorbing structure |
| CN114156663A (en) * | 2021-12-20 | 2022-03-08 | 重庆邮电大学 | Light and efficient composite wave absorber and preparation method and application thereof |
| CN114156663B (en) * | 2021-12-20 | 2024-04-19 | 重庆邮电大学 | Light and efficient composite wave absorber and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A composite absorbing material Effective date of registration: 20210331 Granted publication date: 20160601 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Zhoushan branch Pledgor: ZHEJIANG YUANBANG MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2021330000245 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220912 Granted publication date: 20160601 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Zhoushan branch Pledgor: ZHEJIANG YUANBANG MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2021330000245 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A composite absorbing material Effective date of registration: 20231010 Granted publication date: 20160601 Pledgee: China CITIC Bank Corporation Zhoushan Branch Pledgor: ZHEJIANG YUANBANG MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2023330002274 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |