CN211909549U

CN211909549U - Shielding device for electromagnetic compatibility

Info

Publication number: CN211909549U
Application number: CN202020652221.8U
Authority: CN
Inventors: 陈钲予
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-11-10
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses a shielding device for electromagnetic compatibility, which comprises an outer box body, a middle box body and an inner box body, wherein the surface of the outer box body is provided with a shielding door, the surface of the shielding door is provided with an observation window, electromagnetic shielding glass is arranged in the observation window, the edge of the shielding door is provided with a shielding strip, the shielding strip is made of conductive elastic material, one side of the observation window is provided with a handle, the lower end of the outer box body is provided with a base, a storage battery is arranged in the base, and the top of the outer box body is provided with a top cover. Can effectively reflect the electromagnetic wave signals transmitted by the internal electromagnetic compatible equipment.

Description

Shielding device for electromagnetic compatibility

Technical Field

The utility model relates to an electromagnetic compatibility technical field, concretely relates to shielding device for electromagnetic compatibility.

Background

Electromagnetic compatibility refers to the ability of a device or system to perform satisfactorily in its electromagnetic environment without generating intolerable electromagnetic interference to any device in its environment. Therefore, EMC includes two requirements: on one hand, the electromagnetic interference generated to the environment by the equipment in the normal operation process cannot exceed a certain limit value; another aspect is that the appliance has a degree of immunity to electromagnetic interference present in the environment, i.e., electromagnetic susceptibility. Interference of electronic components to the outside, called EMI; the electromagnetic wave interacts with the electronic components to generate an interference phenomenon called EMS. Electromagnetic shielding in a certain region of the space, means for reducing the field strength caused by certain sources. In most cases, the shield can be made of metal such as copper, aluminum, steel, etc., but for constant and very low frequency magnetic fields, materials such as ferrite can also be used as the shield.

When the existing electromagnetic compatibility equipment is used under some specific conditions, the electromagnetic waves of the equipment are often shielded by a shielding device to be used, the existing shielding device basically has a single-layer structure for shielding, and once the equipment is damaged or the shielding device is opened, the electromagnetic wave shielding failure can be caused, so that certain hidden dangers are brought to people.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the problem that the electromagnetic wave shielding device is needed to shield the electromagnetic wave to use when the electromagnetic compatible equipment in the prior art is used under certain specific conditions, the existing shielding device is basically a single-layer structure for shielding, and once the existing shielding device is damaged or opened, the electromagnetic wave shielding failure can be caused, and a certain hidden danger problem is brought to people, the electromagnetic compatible shielding device is provided, the electromagnetic compatible shielding device utilizes the three-layer box body of the outer box body, the middle box body and the inner box body to carry out multiple protection treatment on the electromagnetic compatible equipment, and utilizes the electromagnetic wave absorption film outside the three-layer box body to repeatedly absorb the electromagnetic wave transmitted from the outside, thereby reducing the possibility that the electromagnetic wave enters the box body, and utilizes the electromagnetic wave absorption film inside the three-layer box body, can effectively reflect the electromagnetic wave signals transmitted by the internal electromagnetic compatible equipment.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a shielding device for electromagnetic compatibility, includes outer box, well box and interior box, outer box surface is provided with the shield door, shield door surface is provided with the observation window, the inside electromagnetic shield glass that is provided with of observation window, shield door edge is provided with the shielding strip, the shielding strip is made for electrically conductive elastic material, observation window one side is provided with the handle, outer box lower extreme is provided with the base, the inside battery that is provided with of base, outer box top is provided with the top cap, the inside wave filter that is provided with of top cap, the internal portion of outer box is provided with well box, the internal portion of well box is provided with interior box, outer box, well box and the interior box outside all are provided with the electromagnetic wave absorption membrane, outer box, well box and interior box inboard all are provided with the electromagnetic shielding membrane.

Preferably, a hinge is arranged at the joint of the outer box body and the shielding door, and the outer box body and the shielding door are rotatably connected through the hinge.

Preferably, one side of the storage battery is provided with a charging interface, and the charging interface is electrically connected with the storage battery.

Preferably, a clamping groove is formed in one end of the outer box body, a buckle is arranged at one end of the shielding door, and the buckle is connected with the clamping groove in a clamping mode.

Preferably, a solar cell panel is arranged at the top of the top cover and electrically connected with the storage battery.

Preferably, the bottom of the base is provided with four supporting legs.

Compared with the prior art, the utility model provides a shielding device for electromagnetic compatibility possesses following beneficial effect:

1. the utility model discloses utilize outer box, well box and interior box three-layer box, can carry out multiple protection processing to electromagnetic compatibility equipment, utilize the electromagnetic wave absorption film outside the three-layer box, can repeat the electromagnetic wave that transmits to the external world and carry out a lot of absorption, and then reduce the electromagnetic wave and get into the possibility in the case, utilize the electromagnetic shielding film of three-layer box inboard, can the electromagnetic wave signal that the electromagnetic compatibility equipment of effectual reflection internal emission sent, utilize the shielding strip, can carry out signal shielding to the gap between box and the shield door;

2. the utility model discloses utilize observation window and electromagnetic shield glass, can make the staff can also in time observe the electromagnetic compatibility equipment condition inside in the external world, utilize the battery, can supply power to the electric quantity that shielding device used, avoid appearing the condition that the outage leads to the electromagnetic shield inefficacy, utilize solar cell panel, can carry out solar charging to the battery, utilize the wave filter, can carry out effective filtering to the frequency point of specific frequency in the power cord or the frequency beyond this frequency point;

the part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization provides very big help for people.

Drawings

Fig. 1 is a schematic structural diagram of a shielding device for electromagnetic compatibility according to the present invention;

fig. 2 is a cross-sectional view of a shielding device for electromagnetic compatibility according to the present invention;

fig. 3 is a sectional view of the outer case structure according to the present invention.

Description of the reference numerals

1. An outer case; 2. a shield door; 3. a handle; 4. a card slot; 5. buckling; 6. an observation window; 7. electromagnetic shielding glass; 8. a shielding strip; 9. a base; 10. supporting legs; 11. a storage battery; 12. a charging interface; 13. a hinge; 14. a top cover; 15. a filter; 16. a solar panel; 17. a middle box body; 18. an inner box body; 19. an electromagnetic wave absorption film; 20. an electromagnetic shielding film.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

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 a fixed connection, a detachable connection, or an integral connection; 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.

Referring to fig. 1-3, the present invention provides a technical solution: a shielding device for electromagnetic compatibility comprises an outer box body 1, a middle box body 17 and an inner box body 18, wherein a shielding door 2 is arranged on the surface of the outer box body 1, an observation window 6 is arranged on the surface of the shielding door 2, electromagnetic shielding glass 7 is arranged in the observation window 6, a worker can timely observe the condition of electromagnetic compatibility equipment in the outer box body by utilizing the observation window 6 and the electromagnetic shielding glass 7, a shielding strip 8 is arranged at the edge of the shielding door 2, the shielding strip 8 is made of conductive elastic materials, the gap between the box body and the shielding door 2 can be subjected to signal shielding by utilizing the shielding strip 8, a handle 3 is arranged on one side of the observation window 6, a base 9 is arranged at the lower end of the outer box body 1, a storage battery 11 is arranged in the base 9, a top cover 14 is arranged at the top of the outer box body 1, a filter 15 is arranged in the top cover 14, and the filter 15 can effectively filter the, the inside well box 17 that is provided with of outer box 1, the inside interior box 18 that is provided with of well box 17, utilize outer box 1, well box 17 and the three-layer box of interior box 18, can carry out multiple protection to electromagnetic compatibility equipment and handle, outer box 1, well box 17 all is provided with electromagnetic wave absorption film 19 with the interior box 18 outside, utilize the electromagnetic wave absorption film 19 of the three-layer box outside, can repeat the electromagnetic wave that transmits to the external world and carry out a lot of absorption, and then reduce the possibility that the electromagnetic wave got into the incasement, outer box 1, well box 17 all is provided with electromagnetic shielding film 20 with interior box 18 inboard, utilize the inboard electromagnetic shielding film 20 of three-layer box, the electromagnetic wave signal that the inside electromagnetic compatibility equipment of can effectual reflection transmitted.

The utility model discloses in, it is preferred, outer box 1 is provided with hinge 13 with 2 junctions of shield door, outer box 1 rotates through hinge 13 with shield door 2 and is connected, battery 11 one side is provided with the interface 12 that charges, utilize battery 11, can supply power to the electric quantity that shielding device used, avoid appearing the outage and lead to the condition that the electromagnetic shield became invalid, interface 12 and the battery 11 electric connection that charges, 1 one end of outer box is provided with draw-in

groove

4, 2 one end of shield door is provided with buckle 5, buckle 5 is connected with 4 blocks of draw-in groove, 14 tops of top cap are provided with solar cell panel 16, solar cell panel 16 and battery 11 electric connection, utilize solar cell panel 16, can carry out solar charging to

battery

11, 9 bottoms of bases are provided with supporting legs 10, supporting legs 10 are total four.

The utility model discloses a theory of operation and use flow: when in use, the three layers of the outer box body 1, the middle box body 17 and the inner box body 18 carry out multiple protection treatment on the electromagnetic compatible equipment, the electromagnetic wave absorption film 19 at the outer side of the three layers of the box bodies repeatedly absorbs electromagnetic waves transmitted from the outside for multiple times, thereby reducing the possibility of electromagnetic waves entering the box, effectively reflecting electromagnetic wave signals emitted by internal electromagnetic compatible equipment by the electromagnetic shielding film 20 on the inner side of the three-layer box body, carrying out signal shielding on a gap between the box body and the shielding door 2 by the shielding strip 8, leading a worker to be capable of timely observing the condition of the internal electromagnetic compatible equipment outside by the observation window 6 and the electromagnetic shielding glass 7, the storage battery 11 supplies power to the electric quantity used by the shielding device, avoids the situation of electromagnetic shielding failure caused by power failure, the solar cell panel 16 charges the battery 11 with solar energy, the filter 15, the frequency point of the specific frequency in the power line or the frequencies except the frequency point can be effectively filtered.

The utility model discloses utilize outer box 1,

middle box

17 and 18 three-layer boxes of inner box, can carry out multiple protection processing to electromagnetic compatibility equipment, utilize the electromagnetic wave absorption membrane 19 outside the three-layer box, can repeat the electromagnetic wave that transmits to the external world and carry out a lot of absorption, and then reduce the possibility that the electromagnetic wave gets into the incasement, utilize the electromagnetic shielding membrane 20 of the inboard of three-layer box, can the electromagnetic wave signal that the electromagnetic compatibility equipment of effectual reflection internal emission, utilize shielding strip 8, can carry out signal shielding to the gap between box and shield door 2;

the utility model discloses utilize observation window 6 and electromagnetic shield glass 7, can make the staff can also be in time in the external world observe the electromagnetic compatibility equipment condition of inside, utilize battery 11, can supply power to the electric quantity that shielding device used, avoid appearing the outage and lead to the condition that the electromagnetic shield became invalid, utilize solar cell panel 16, can carry out solar charging to battery 11, utilize wave filter 15, can effectively filter the frequency point of specific frequency in the power cord or the frequency beyond this frequency point;

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. In the technical idea scope of the present invention, it can be right to the technical solution of the present invention perform multiple simple modifications, including each technical feature combined in any other suitable manner, these simple modifications and combinations should be regarded as the disclosed content of the present invention, and all belong to the protection scope of the present invention.

Claims

1. The utility model provides a shield assembly for electromagnetic compatibility, includes outer box (1), well box (17) and interior box (18), its characterized in that: the electromagnetic wave absorption type refrigerator is characterized in that a shielding door (2) is arranged on the surface of the outer box body (1), an observation window (6) is arranged on the surface of the shielding door (2), electromagnetic shielding glass (7) is arranged inside the observation window (6), a shielding strip (8) is arranged at the edge of the shielding door (2), the shielding strip (8) is made of conductive elastic materials, a handle (3) is arranged on one side of the observation window (6), a base (9) is arranged at the lower end of the outer box body (1), a storage battery (11) is arranged inside the base (9), a top cover (14) is arranged at the top of the outer box body (1), a filter (15) is arranged inside the top cover (14), a middle box body (17) is arranged inside the outer box body (1), an inner box body (18) is arranged inside the middle box body (17), and electromagnetic wave absorption films (19) are arranged outside the outer box body (, electromagnetic shielding films (20) are arranged on the inner sides of the outer box body (1), the middle box body (17) and the inner box body (18).

2. The shielding device for electromagnetic compatibility according to claim 1, wherein a hinge (13) is provided at a connection portion between the outer case (1) and the shield door (2), and the outer case (1) and the shield door (2) are rotatably connected by the hinge (13).

3. The shielding device for electromagnetic compatibility according to claim 1, wherein a charging interface (12) is provided at one side of the storage battery (11), and the charging interface (12) is electrically connected with the storage battery (11).

4. The shielding device for electromagnetic compatibility according to claim 1, wherein a clamping groove (4) is provided at one end of the outer box (1), a buckle (5) is provided at one end of the shielding door (2), and the buckle (5) is connected with the clamping groove (4) in a clamping manner.

5. The shielding device for electromagnetic compatibility according to claim 1, wherein a solar panel (16) is disposed on top of the top cover (14), and the solar panel (16) is electrically connected to the storage battery (11).

6. The shielding device for electromagnetic compatibility according to claim 1, wherein the base (9) is provided with four support legs (10) at the bottom, and the number of the support legs (10) is four.