CN216161933U

CN216161933U - Flame-retardant polymer foam wave-absorbing structure

Info

Publication number: CN216161933U
Application number: CN202122069749.XU
Authority: CN
Inventors: 张雪红
Original assignee: Jing'an Shengyi Plastic Products Co ltd
Current assignee: Jing'an Shengyi Plastic Products Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-04-01
Anticipated expiration: 2031-08-31

Abstract

The utility model relates to the technical field of wave absorbing structures, in particular to a flame-retardant polymer foam wave absorbing structure which comprises a first layer of foam plate, wherein the first layer of foam plate is connected with foam columns which are uniformly arranged, the foam columns are detachably connected with a cylinder, the cylinder is connected with a cone, a plurality of first hexagonal holes are formed in the first layer of foam plate, one end, far away from the cylinder, of the first layer of foam plate is connected with a second layer of foam plate, a second hexagonal hole which is uniformly arranged is formed in the second layer of foam plate, the second layer of foam plate is connected with a third layer of foam plate, a plurality of third cylindrical holes which are uniformly arranged are formed in the third layer of foam plate, the third layer of foam plate is connected with a fourth layer of foam plate, and a long hole is formed in the fourth layer of foam plate. The cone and the cylinder are of hollow structures, waves with different wavelengths enter the hollow structures to be offset, the rest waves enter different foam plates, and different holes formed in the foam plates are used for offsetting the rest waves.

Description

Flame-retardant polymer foam wave-absorbing structure

Technical Field

The utility model relates to the technical field of wave-absorbing structures, in particular to a flame-retardant polymer foam wave-absorbing structure.

Background

In the microwave anechoic chamber, the wave-absorbing material is arranged on the wall surface, the ceiling and/or the ground. When the electromagnetic waves are incident on the wave-absorbing material, most of the electromagnetic waves can be absorbed by the wave-absorbing material, the transmission and reflection are few, the noise interference can be avoided when the test is carried out on wireless communication products such as antennas and radars and electronic products, and the test precision and efficiency are improved.

The common darkroom wave-absorbing materials are various, the solid foam pyramid wave-absorbing material is the material with the earliest application time and the widest application range in the wave-absorbing material, and is widely used for building a darkroom (a non-echo chamber and a microwave darkroom), a darkroom, a wave-absorbing screen, a wave-absorbing wall and the like, is used for covering reflectors of a test environment, reducing background noise, eliminating clutter interference and improving test precision, the wave-absorbing requirement on the darkroom is higher and higher according to the development, the wave-absorbing requirement on the darkroom is only absorbed by the solid foam pyramid, and the requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flame-retardant polymer foam wave-absorbing structure with better wave-absorbing effect aiming at the problems in the background technology.

According to the technical scheme, the flame-retardant polymer foam wave-absorbing structure comprises a first layer of foam plate, wherein the first layer of foam plate is connected with foam columns which are uniformly arranged, the foam columns are detachably connected with a cylinder, the cylinder is connected with a cone, a plurality of first hexagonal holes are formed in the first layer of foam plate, one end, far away from the cylinder, of the first layer of foam plate is connected with a second layer of foam plate, a second hexagonal hole which is uniformly arranged is formed in the second layer of foam plate, the second layer of foam plate is connected with a third layer of foam plate, a plurality of third cylindrical holes which are uniformly arranged are formed in the third layer of foam plate, the third layer of foam plate is connected with a fourth layer of foam plate, and long-strip holes are formed in the fourth layer of foam plate.

Preferably, a conical hole is formed in the cone, a first cylindrical hole is formed in the upper portion of the inner wall of the cylinder, a second cylindrical hole formed in the lower portion of the inner wall of the cylinder is formed in the lower end of the first cylindrical hole, the conical hole, the first cylindrical hole and the second cylindrical hole can absorb waves, and the waves are offset in the holes.

Preferably, the second cylinder hole is connected with a cylinder, so that the cone and the cylinder can be conveniently replaced when damaged.

Preferably, the end, far away from the third layer foam board, of the fourth layer foam board is connected with a heat insulation layer, and the heat insulation layer can insulate external heat and also insulate heat generated during wave absorption.

Preferably, the one end that the fourth layer cystosepiment was kept away from to the insulating layer is connected with the waterproof layer, and the waterproof layer can prevent that water from getting into the cystosepiment layer to influence the cystosepiment layer and inhale the wave.

Preferably, the first hexagonal holes are horizontal and parallel to each other, the second hexagonal holes are vertical and parallel to each other, and the hexagonal holes in different directions can absorb waves with different wavelengths.

Preferably, the cone and the cylinder are made of foam, and the foam has a wave absorbing function and improves the wave absorbing effect of the whole device.

Compared with the prior art, the utility model has the following beneficial technical effects: the device adopts a cone, a cylinder, a foam column and a multi-layer open-cell foam board, wherein the cone and the cylinder are of hollow structures, the waves with different wavelengths enter the hollow structures and can be counteracted with each other, the rest waves enter different foam boards, different holes are formed in the foam boards and are counteracted with each other, and the multi-layer foam board can ensure that the wave absorbing effect meets the requirement.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a structural cross-sectional view of an embodiment of the present invention;

FIG. 3 is a first partial sectional view of an embodiment of the present invention;

FIG. 4 is a sectional view of a portion of the structure of the embodiment of the present invention.

Reference numerals: 1. a cone; 2. a cylinder; 3. a first layer of foam board; 4. a second layer of foam board; 5. A third layer of foam board; 6. a fourth layer of foam board; 7. a thermal insulation layer; 8. a waterproof layer; 9. a foam column; 10. a conical groove; 11. a first hexagonal hole; 12. a second hexagonal hole; 13. a third cylindrical bore; 14. a strip hole; 15. a first cylindrical bore; 16. a second cylindrical bore.

Detailed Description

As shown in fig. 1-4, the flame retardant polymer foam wave absorbing structure provided by the utility model comprises a first layer of foam plate 3, wherein the first layer of foam plate 3 is connected with foam columns 9 which are uniformly arranged, the foam columns 9 are detachably connected with a cylinder 2, the cylinder 2 is connected with a cone 1, a plurality of first hexagonal holes 11 are formed in the first layer of foam plate 3, one end, far away from the cylinder 2, of the first layer of foam plate 3 is connected with a second layer of foam plate 4, a plurality of second hexagonal holes 12 which are uniformly arranged are formed in the second layer of foam plate 4, the second layer of foam plate 4 is connected with a third layer of foam plate 5, a plurality of third cylindrical holes 13 which are uniformly arranged are formed in the third layer of foam plate 5, the third layer of foam plate 5 is connected with a fourth layer of foam plate 6, and elongated holes 14 are formed in the fourth layer of foam plate 6.

A conical hole 10 is formed in the cone 1, a first cylindrical hole 15 is formed in the upper portion of the inner wall of the cylinder 2, a second cylindrical hole 16 formed in the lower portion of the inner wall of the cylinder 2 is formed in the lower end of the first cylindrical hole 15, the conical hole 10, the first cylindrical hole 15 and the second cylindrical hole 10 can absorb waves, and the waves are offset in the holes.

The second cylindrical hole 16 is connected with the cylinder 2, so that the cone 1 and the cylinder 2 can be conveniently replaced when damaged.

One end of the fourth layer of foam board 6, which is far away from the third layer of foam board 5, is connected with a heat insulation layer 7, and the heat insulation layer 7 can insulate external heat and also insulate heat generated during wave absorption.

The one end that fourth layer cystosepiment 6 was kept away from to insulating layer 7 is connected with waterproof layer 8, and waterproof layer 8 can prevent that water from getting into the cystosepiment layer to influence the cystosepiment layer and inhale the wave.

The first hexagonal holes 11 are horizontal and parallel to each other, the second hexagonal holes 12 are vertical and parallel to each other, and the hexagonal holes in different directions can absorb waves with different wavelengths.

The cone 1 and the cylinder 2 are made of foam, and the foam has a wave absorbing function, so that the wave absorbing effect of the whole device is improved.

The material of all structures of this embodiment is fire-retardant polymer foam, the foam is exactly the porous structure originally, itself just can absorb different ripples, this device adopts cone 1, cylinder 2, the cystosepiment of foam column 9 and multilayer trompil, cone 1 and cylinder 2 are hollow structure, the ripples of different wavelengths gets into wherein, can offset each other, during remaining ripples gets into different cystosepiments, the different holes that the cystosepiment was seted up, offset each other remaining ripples, the multilayer cystosepiment can guarantee to inhale the ripples effect and reach the requirement.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides a fire-retardant polymer foam wave-absorbing structure, including first layer cystosepiment (3), a serial communication port, first layer cystosepiment (3) are connected with align to grid's foam column (9), foam column (9) can be dismantled and be connected with cylinder (2), cylinder (2) are connected with cone (1), a plurality of first hexagonal holes (11) have been seted up in first layer cystosepiment (3), cylinder (2) one end is kept away from in first layer cystosepiment (3) and is connected with second layer cystosepiment (4), second hexagonal hole (12) to a plurality of align to grid have been seted up in second layer cystosepiment (4), second layer cystosepiment (4) are connected with third layer cystosepiment (5), third cylindrical hole (13) of a plurality of align to grid have been seted up in third layer cystosepiment (5), third layer cystosepiment (5) are connected with fourth layer cystosepiment (6), rectangular hole (14) have been seted up in fourth layer cystosepiment (6).

2. The structure of claim 1, wherein the cone (1) has a conical hole (10) formed therein, the upper portion of the inner wall of the cylinder (2) has a first cylindrical hole (15), and the lower end of the first cylindrical hole (15) has a second cylindrical hole (16) formed in the lower portion of the inner wall of the cylinder (2).

3. A fire retardant polymer foam wave absorbing structure according to claim 2, wherein the second cylindrical hole (16) is connected with a cylinder (2).

4. The structure of claim 1, wherein the end of the fourth foam sheet (6) remote from the third foam sheet (5) is connected to a thermal insulation layer (7).

5. The structure of claim 1, wherein the waterproof layer (8) is connected to the end of the thermal insulation layer (7) away from the fourth foam sheet (6).

6. A fire retardant polymer foam wave absorbing structure according to claim 1 wherein the first hexagonal cells (11) are horizontal and parallel to each other and the second hexagonal cells (12) are vertical and parallel to each other.

7. The structure of claim 1, wherein the cone (1) and the cylinder (2) are both made of foam.