CN209845637U - Wave-absorbing structure - Google Patents
Wave-absorbing structure Download PDFInfo
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- CN209845637U CN209845637U CN201920390576.1U CN201920390576U CN209845637U CN 209845637 U CN209845637 U CN 209845637U CN 201920390576 U CN201920390576 U CN 201920390576U CN 209845637 U CN209845637 U CN 209845637U
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Abstract
The utility model relates to an absorbing structure, including the wave-absorbing body that absorbing material made, be equipped with a plurality of groups wave-absorbing unit on the wave-absorbing body, each wave-absorbing unit places the wave-absorbing cavity of wave-absorbing body in including and communicates from top to bottom to wave-absorbing body surface and wave-absorbing cavity's incident cavity, and the incident cavity has the reflection wall that the reflection electromagnetic wave got into rather than the corresponding wave-absorbing cavity in. The utility model creatively adopts the combination of the incident cavity and the wave-absorbing cavity to replace the traditional wedge-shaped wave-absorbing body structure, thereby avoiding the condition that the pyramid of the conventional wedge is damaged by external force and ensuring that the whole wave-absorbing structure is not easy to deform or break; after the electromagnetic wave is injected into the incident cavity, a part of the electromagnetic wave is refracted to enter the wave absorbing body and is consumed, a part of the electromagnetic wave is reflected on the inner wall of the incident cavity, the electromagnetic wave is finally guided into the wave absorbing cavity after being reflected for multiple times by the inner wall of the incident cavity, and the electromagnetic wave is finally consumed after being reflected and absorbed for countless times in the wave absorbing cavity.
Description
Technical Field
The utility model relates to an electromagnetic wave absorbs technical field, especially relates to an absorbing structure.
Background
With the development of modern science and technology, the influence of electromagnetic wave radiation on the environment is increasingly increased, a large amount of electromagnetic radiation can be generated by high-voltage power transmission lines, transformer substations, transformers, communication base stations and the like, not only can harmful effects be generated on human bodies, but also damages precise electronic instruments, and in order to treat electromagnetic pollution, various electromagnetic wave absorbing materials are proposed, wherein the absorbing materials are functional materials capable of effectively absorbing electromagnetic wave energy irradiated onto the absorbing materials, so that the reflected or scattered energy of the electromagnetic wave is obviously attenuated.
In the prior art, a wave-absorbing material is usually used to make an absorber with a certain shape, such as a wedge shape, which can make the incident electromagnetic wave enter the material as much as possible, so as to reduce the direct reflection of the electromagnetic wave, and the energy of the electromagnetic wave is attenuated by multiple reflections in the absorber, and is lost multiple times, and absorbed by the strong electromagnetic wave absorber in the absorber, and finally the energy of the electromagnetic wave transmitted by the wave-absorbing material reaches a smaller value.
However, the tips of the conventional wedge-shaped absorbers are exposed on the surface of the absorber without any protective measures, and are easily deformed or even broken under the influence of external force, and the absorbers are usually arranged on a base and are connected into a whole only through the base, so that the whole structure is unstable; moreover, the normally wedge-shaped absorber is closely arranged on the base, so that the electromagnetic waves cannot be completely lost, a considerable part of the electromagnetic waves are always reflected from the surface of the wave-absorbing material, and a part of the electromagnetic waves are transmitted from the wave-absorbing body, and the part of the electromagnetic waves are not reasonably processed in the prior art.
SUMMERY OF THE UTILITY MODEL
For overcoming the technical defect that prior art exists, the utility model provides an absorbing structure has stable structure, non-deformable or fracture, and it is efficient to inhale the wave.
The utility model discloses a technical solution be: the wave-absorbing structure comprises a wave-absorbing body made of wave-absorbing materials, wherein a plurality of groups of wave-absorbing units are arranged on the wave-absorbing body, each wave-absorbing unit comprises a wave-absorbing cavity arranged in the wave-absorbing body and an incident cavity communicated with the surface of the wave-absorbing body and the wave-absorbing cavity from top to bottom, and the incident cavity is provided with a reflecting wall for reflecting electromagnetic waves to enter the corresponding wave-absorbing cavity.
Preferably, the wave-absorbing chamber is an irregular cavity.
Preferably, the incident chamber has a cavity structure with a wide outer part and a narrow inner part.
Preferably, the entrance chamber is a tapered cavity.
Preferably, each incidence chamber is a pyramid whose bottom surface is a regular quadrangle.
Preferably, the wave absorbing units are uniformly distributed on one side of the wave absorbing body.
Preferably, the plurality of entrance chambers are arranged in a matrix.
Preferably, the wave absorber is made of a micro carbon coil composite material or the wave absorber part around the wave absorbing chamber is made of a micro carbon coil composite material.
The utility model has the advantages that:
the utility model discloses a wave-absorbing structure is through setting up multiunit wave-absorbing unit on the wave-absorbing body, and each wave-absorbing unit is including placing the wave-absorbing cavity of wave-absorbing body in and communicating from top to bottom to wave-absorbing body surface and the incident cavity of inhaling the wave-absorbing cavity, the reflection wall characteristics that have through the incident cavity reflect outside electromagnetic wave to in inhaling the wave cavity and reduce the reflection capacity of electromagnetic wave on one side of the wave-absorbing body, after the electromagnetic wave reflects many times through the incident cavity, finally lead-in the electromagnetic wave to inhaling the wave cavity, again because the opening of inhaling wave cavity and incident cavity junction is far less than and inhale the wave cavity diameter, therefore the electromagnetic wave is through countless reflection and absorption in inhaling the wave cavity, finally consume almost completely, further absorb through the little carbon coil around the wave-absorbing cavity and turn into heat energy diffusion in the; and, because the utility model discloses adopt incident cavity and inhale the combination of wave cavity and replace traditional wedge-shaped wave absorber structure innovatively, avoided the pyramid of conventional wedge to receive the condition of external force damage, make whole absorbing structure non-deformable or fracture.
The utility model discloses wave-absorbing structure's wave absorber adopts little carbon coil combined material, according to Faraday's electromagnetic induction law, the electromagnetic wave can produce the little current of response through little carbon coil, become heat energy dispersion in the wave absorber through the loss, and little carbon coil is one kind of chirality spiral carbon fiber, when the electromagnetic wave incides in the chirality medium, the electric field of reversal not only induces the polarization of medium, still induces the magnetization of medium, and the magnetic field of reversal not only induces the magnetization of medium, still induces the polarization of medium, produce the coupling of electricity and magnetism, so chiral material more general wave-absorbing material has extra absorption mechanism, therefore little carbon coil is excellent electromagnetic wave absorbent, be in the electromagnetic wave-absorbing cavity internal repeated reflection in-process can be absorbed by little carbon coil high efficiency and change into heat energy diffusion in the wave absorber.
Drawings
Fig. 1 is a schematic structural diagram of the wave-absorbing structure of the present invention.
Fig. 2 is a schematic structural diagram ii of the wave-absorbing structure of the present invention.
Fig. 3 is a schematic structural diagram of the wave absorbing unit.
Fig. 4 is a schematic arrangement diagram of the wave absorbing units.
Figure 5 is a top view of the absorbent structure.
Fig. 6 is a working schematic diagram of the wave-absorbing structure.
Description of reference numerals: 1. an incident chamber; 2. a wave-absorbing chamber; 3. a wave absorber; 4. a micro-carbon coil; 5. electromagnetic waves; 10. and the wave absorbing unit.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 6, this embodiment provides a wave-absorbing structure, the wave-absorbing body 3 of making including absorbing material, be equipped with a plurality of groups on the wave-absorbing body 3 and inhale ripples unit 10, place in each ripples unit 10 including inhale ripples body 3 inhale ripples cavity 2 and communicate from top to bottom to inhale ripples body 3 surface and inhale the incident cavity 1 of ripples cavity 2, incident cavity 1 has the reflection wall that reflection electromagnetic wave 5 got into rather than corresponding ripples cavity 2 interior, because the utility model discloses creatively adopt incident cavity 1 and inhale the combination of ripples cavity 2 and replace traditional wedge-shaped wave-absorbing body 3 structure, avoided the pyramid of conventional wedge to receive the circumstances of external force damage, make whole wave-absorbing structure non-deformable or fracture.
The incident chamber 1 also refracts and absorbs to some extent, but mainly reflects, and the electromagnetic wave 5 is guided into the wave-absorbing chamber 2 by reflection.
Preferably, the wave-absorbing chamber 2 is an irregular cavity, the inner surface of which is irregular, as shown in fig. 1 or 2, the electromagnetic wave 5 enters the wave-absorbing chamber 2 through the incident chamber 1, because the wave-absorbing chamber 2 adopts the irregular cavity, the electromagnetic wave 5 entering the wave-absorbing chamber 2 is difficult to reflect out of the wave-absorbing body 3, the electromagnetic wave 5 is constantly reflected and attenuated in the wave-absorbing chamber 2 and is finally and basically absorbed by the wave-absorbing body 3, in order to facilitate the electromagnetic wave 5 entering the wave-absorbing chamber 2, the incident chamber 1 is designed into a cavity structure with a wide outer part and a narrow inner part, preferably, each incident chamber 1 is a pyramid with a regular quadrilateral bottom surface, and the sizes of the incident chamber 1 and the wave-absorbing chamber 2 can be reasonably set according.
Preferably, the wave absorbing units 10 are uniformly distributed on one side of the wave absorber 3, the plurality of incident chambers 1 are arranged in a matrix, and the side forms a wave absorbing surface of the wave absorber 3, for example, as shown in fig. 6 and 5, the electromagnetic waves 5 come from different directions, and the electromagnetic waves 5 are projected onto the wave absorbing surface, reflected by the inner wall of the incident chambers 1, and then enter the wave absorbing chambers 2 inside the wave absorber 3.
Preferably, the wave absorber 3 is made of a micro-carbon coil composite material, the micro-carbon coil 4 is a known material, the micro-carbon coil 4 is a conductive coil composite material formed by the micro-carbon coil 4 being dispersed and compounded in the base material, the micro-carbon coil 4 is a conductive coil, has a stronger loss capability to the electromagnetic wave 5, and is one of chiral spiral carbon fibers, when the electromagnetic wave 5 is incident into a chiral medium, the alternating electric field not only induces the polarization of the medium, but also induces the magnetization of the medium, and the alternating magnetic field not only induces the magnetization of the medium, but also induces the polarization of the medium, generating the coupling of electricity and magnetism, so that the chiral medium has an additional absorption mechanism compared with a common medium, the micro-carbon coil 4 is distributed in the whole wave absorber 3, as shown in fig. 1, after the electromagnetic wave 5 enters the incident chamber 1 and the wave absorbing chamber 2, the micro-carbon coil 4 can be efficiently absorbed and converted into heat energy to be diffused in the wave absorber 3, thereby achieving the effect of absorbing the electromagnetic wave 5 with high efficiency, preferably, since the incident chamber 1 mainly plays a role of reflecting the electromagnetic wave 5 to reduce the reflection amount of the electromagnetic wave 5 on one side of the wave absorber 3, the micro carbon coil 4 composite material can be applied only to the wave absorber 3 part around the wave absorbing chamber 2 to reduce the cost, as shown in fig. 2.
The absorbing structure of this embodiment is at the during operation, 5 back incidences into the chamber 1 from the electromagnetic wave that different directions are penetrated, some 5 reflections at the 1 inner wall of chamber of incidences of electromagnetic wave, some 5 reflections of electromagnetic wave are absorbed the wave body 3 through the refraction entering, 5 back of the 1 inner wall multiple reflection of chamber of incidences of electromagnetic wave, finally lead to 5 the electromagnetic wave and inhale ripples chamber 2, 5 the electromagnetic wave is absorbing reflection and absorption through countless number in the chamber 2, final consumption is totally, some 5 direct incidences into of electromagnetic wave and inhale ripples chamber 2 in addition, as shown in figure 6. The wave-absorbing structure of this embodiment adopts incident cavity 1 and inhale combination of wave cavity 2 to replace traditional wedge-shaped wave-absorbing body 3 innovatively, has avoided the pyramid of conventional wedge to receive the condition of external force damage, makes whole wave-absorbing structure non-deformable or fracture, and the wave-absorbing body 3 of the wave-absorbing structure of this embodiment adopts little carbon coil 4 combined material, has high microwave-absorbing efficiency.
Having shown and described the fundamental principles and the principal features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. Wave-absorbing structure, its characterized in that: the wave absorbing device comprises a wave absorbing body (3) made of wave absorbing materials, wherein a plurality of groups of wave absorbing units (10) are arranged on the wave absorbing body (3), each wave absorbing unit (10) comprises a wave absorbing cavity (2) arranged in the wave absorbing body (3) and an incident cavity (1) communicated with the surface of the wave absorbing body (3) and the wave absorbing cavity (2) from top to bottom, and the incident cavity (1) is provided with a reflecting wall for reflecting electromagnetic waves to enter the wave absorbing cavity (2) corresponding to the incident cavity.
2. A wave-absorbing structure according to claim 1, characterised in that the wave-absorbing chamber (2) is an irregular cavity.
3. The wave-absorbing structure of claim 1, wherein the incident chamber (1) has a cavity structure with a wide outside and a narrow inside.
4. A wave-absorbing structure according to claim 3, characterized in that: the incidence chamber (1) is a conical cavity.
5. A wave-absorbing structure according to claim 4, characterized in that: each of the incident chambers (1) has a pyramid shape with a square bottom surface.
6. A wave-absorbing structure according to claim 1, characterised in that the wave-absorbing elements (10) are evenly distributed on one side of the wave-absorbing body (3).
7. A wave-absorbing structure according to claim 6, characterised in that the plurality of incident chambers (1) are arranged in a matrix.
8. A wave-absorbing structure according to any one of claims 1 to 7, characterized in that: the wave absorbing body (3) is made of micro carbon coil composite materials or the wave absorbing body (3) part around the wave absorbing chamber (2) is made of micro carbon coil composite materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390576.1U CN209845637U (en) | 2019-03-26 | 2019-03-26 | Wave-absorbing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390576.1U CN209845637U (en) | 2019-03-26 | 2019-03-26 | Wave-absorbing structure |
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| CN209845637U true CN209845637U (en) | 2019-12-24 |
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| CN201920390576.1U Active CN209845637U (en) | 2019-03-26 | 2019-03-26 | Wave-absorbing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151351A (en) * | 2020-11-24 | 2020-12-29 | 季华实验室 | Structure for inhibiting electromagnetic interference and wave leakage, radio frequency power supply and plasma etching equipment |
| CN113839220A (en) * | 2020-06-24 | 2021-12-24 | 河南兄弟科技发展有限公司 | Electromagnetic wave reflection structure |
-
2019
- 2019-03-26 CN CN201920390576.1U patent/CN209845637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839220A (en) * | 2020-06-24 | 2021-12-24 | 河南兄弟科技发展有限公司 | Electromagnetic wave reflection structure |
| CN112151351A (en) * | 2020-11-24 | 2020-12-29 | 季华实验室 | Structure for inhibiting electromagnetic interference and wave leakage, radio frequency power supply and plasma etching equipment |
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