CN214125866U

CN214125866U - Electromagnetic shielding device

Info

Publication number: CN214125866U
Application number: CN202022646872.9U
Authority: CN
Inventors: 盖俊; 刘哲洪; 田明运; 杨俊�
Original assignee: Baode Plastic Metal Parts Shenzhen Co ltd
Current assignee: Baode Plastic Metal Parts Shenzhen Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-09-03
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses an electromagnetic shielding device, which comprises a housin, a casing internal side surface fixed mounting has silica gel absorbing material, silica gel absorbing material inboard surface fixed mounting has No. two casings, a casing with No. two equal fixed mounting of casing lower surface have electrically conductive viscose, No. one the casing internal side surface is located the turning and is close upper end department fixed mounting and have an insulating fixed block, an insulating fixed block run through silica gel absorbing material with No. two casing external surface fixed connection, No. one the casing internal side surface is close lower extreme department fixed mounting and has No. two insulating fixed blocks, No. two insulating fixed blocks run through silica gel absorbing material with No. two casing external surface fixed connection, No. two insulating fixed block lower surfaces have seted up the locating hole. An electromagnetic shield device, can shield the electromagnetic wave effectively, prevent that it from leaking, be convenient for install and improve stability.

Description

Electromagnetic shielding device

Technical Field

The utility model relates to an electromagnetic shield field, in particular to electromagnetic shield device.

Background

Electromagnetic shielding means that an electronic device does not interfere with other devices and is not affected by other devices. Electromagnetic shielding, as is well known for safety, is one of the most important indicators of product quality. Safety relates to human and property, and electromagnetic shielding relates to human and environmental protection; the existing electromagnetic shielding device has certain defects when in use, can not effectively shield electromagnetic wave leakage and is inconvenient to install.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an electromagnetic shielding device, which can effectively solve the problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an electromagnetic shielding device, includes a casing, a casing internal surface fixed mounting has silica gel absorbing material, silica gel absorbing material internal side fixed surface installs No. two casings, No. one casing internal surface is close lower extreme fixed mounting has No. two insulating fixed blocks, No. two insulating fixed blocks run through silica gel absorbing material with No. two casing external fixed surface connects, No. two insulating fixed block lower surfaces have seted up the locating hole, the locating hole lower extreme with a casing with No. two casing lower surfaces flush.

Preferably, the lower surfaces of the first shell and the second shell are fixedly provided with conductive adhesive.

Preferably, the shell body inner surface is located the corner and is close upper end department fixed mounting has an insulating fixed block, an insulating fixed block run through silica gel absorbing material with No. two shell body outer surface fixed connection.

Preferably, the number of the first insulation fixing blocks is four, and the number of the second insulation fixing blocks is four.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, with locating hole alignment by shield body locating pin all around, through electrically conductive viscose with a casing and No. two casing adhesion to be shielded on the body circuit all around, by the body during operation outwards launch the electromagnetic wave, No. two casings reflect the electromagnetic wave, the electromagnetic wave that is not reflected is absorbed by No. two casings and is gone into inside and offset, the electromagnetic wave after offsetting is outwards launched from No. two casings, absorb by silica gel absorbing material and offset, the electromagnetic wave that is not absorbed and offsets by silica gel absorbing material is outwards launching, by a casing transmission, absorb by silica gel absorbing material once more and absorb by a casing and go into inside and offset, triple shielding device can effectual shielding electromagnetic wave, prevent that the electromagnetic wave from leaking, the structural stability of a casing and No. two casings can be improved to an insulating fixed block and No. two insulating fixed blocks.

Drawings

Fig. 1 is a schematic view of the overall structure of an electromagnetic shielding device according to the present invention;

fig. 2 is a vertical sectional view of an electromagnetic shielding device according to the present invention;

fig. 3 is a cross-sectional view of an electromagnetic shielding device of the present invention;

fig. 4 is an enlarged view of the conductive adhesive of the electromagnetic shielding device of the present invention.

In the figure: 1. a first shell; 2. a second shell; 3. silica gel wave-absorbing material; 4. a first insulating fixed block; 5. a conductive adhesive; 6. a second insulating fixed block; 7. and (7) positioning the holes.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, an electromagnetic shielding device includes a first casing 1, a silica gel wave-absorbing material 3 is fixedly mounted on the inner side surface of the first casing 1, a second casing 2 is fixedly mounted on the inner side surface of the silica gel wave-absorbing material 3, a second insulating fixing block 6 is fixedly mounted on the inner side surface of the first casing 1 near the lower end, the second insulating fixing block 6 penetrates through the silica gel wave-absorbing material 3 and is fixedly connected with the outer surface of the second casing 2, a triple shielding device can effectively shield electromagnetic waves and prevent the electromagnetic waves from leaking, a positioning hole 7 is formed in the lower surface of the second insulating fixing block 6, and the lower end of the positioning hole 7 is flush with the lower surfaces of the first casing 1 and the second casing 2;

the lower surfaces of the first shell 1 and the second shell 2 are fixedly provided with conductive viscose 5; a first insulation fixing block 4 is fixedly arranged on the inner side surface of the first shell 1 at the position of the corner close to the upper end, and the first insulation fixing block 4 penetrates through the silica gel wave-absorbing material 3 and is fixedly connected with the outer surface of the second shell 2; the quantity of an insulating fixed block 4 is four, and the quantity of No. two insulating fixed blocks 6 is four, can improve the structural stability of a casing 1 and No. two casings 2.

It should be noted that the utility model is an electromagnetic shielding device, when in use, the positioning holes 7 are aligned with the positioning pins around the shielded body, the first shell 1 and the second shell 2 are adhered to a circuit around the shielded body through the conductive adhesive 5, when the shielded body works, electromagnetic waves are emitted outwards, the second shell 2 reflects the electromagnetic waves, the electromagnetic waves which are not reflected are absorbed into the inner part by the second shell 2 to be counteracted, the counteracted electromagnetic waves are emitted outwards from the second shell 2, absorbed and counteracted by the silica gel wave-absorbing material 3, the electromagnetic waves which are not absorbed and counteracted by the silica gel wave-absorbing material 3 are emitted outwards, emitted by the first shell 1, absorbed by the silica gel wave-absorbing material 3 again and absorbed into the inner part by the first shell 1 to be counteracted, the triple shielding device can effectively shield the electromagnetic waves and prevent the electromagnetic waves from leaking, and the first insulating fixed block 4 and the second insulating fixed block 6 can improve the structural stability of the first shell 1 and the second shell 2.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An electromagnetic shielding device, characterized by: including casing (1), casing (1) inboard fixed surface installs silica gel absorbing material (3), silica gel absorbing material (3) inboard fixed surface installs casing (2) No. two, casing (1) inboard surface is close lower extreme fixed mounting and has insulating fixed block (6) No. two, insulating fixed block (6) No. two run through silica gel absorbing material (3) with casing (2) outer fixed surface is connected No. two, locating hole (7) have been seted up to insulating fixed block (6) lower surface No. two, locating hole (7) lower extreme with casing (1) and casing (2) lower surface flushes No. two.

2. An electromagnetic shielding device according to claim 1, wherein: the lower surfaces of the first shell (1) and the second shell (2) are fixedly provided with conductive adhesive (5).

3. An electromagnetic shielding device according to claim 1, wherein: the utility model discloses a casing (1) inboard surface is located the turning and is close upper end department fixed mounting have insulating fixed block (4) No. one, insulating fixed block (4) run through silica gel absorbing material (3) with No. two casing (2) outer fixed surface are connected.

4. An electromagnetic shielding device according to claim 3, wherein: the number of the first insulating fixing blocks (4) is four, and the number of the second insulating fixing blocks (6) is four.