CN211671123U - High-voltage-resistant electromagnetic shielding cabinet - Google Patents
High-voltage-resistant electromagnetic shielding cabinet Download PDFInfo
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- CN211671123U CN211671123U CN202020682815.3U CN202020682815U CN211671123U CN 211671123 U CN211671123 U CN 211671123U CN 202020682815 U CN202020682815 U CN 202020682815U CN 211671123 U CN211671123 U CN 211671123U
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Abstract
The utility model discloses a high-voltage resistant electromagnetic shielding cabinet body, which comprises a shielding cabinet body, wherein an eave plate and a cabinet door are arranged at the side opening of the shielding cabinet body, and an iron wire grid is arranged in the shielding cabinet body to form a ventilation chamber and a drawer chamber; the ventilation chamber is internally provided with a fan, an air inlet, a shutter air outlet and an L-shaped corrugated pipe, and the L-shaped corrugated pipe is provided with a through hole communicated with the drawer chamber; the drawer chamber is provided with a mounting box body, a cross arm support and an L-shaped outlet pipe are arranged in the mounting box body, and the L-shaped outlet pipe is provided with rollers and a high-density spring; the cabinet door is provided with a wire outlet through hole. The utility model adopts the drawer type separated shielding cabinet body structure to carry out three-layer shielding protection on the electric appliances and the wiring positions in the drawer chamber, and carries out shielding protection on the input bus and the output branch lines respectively through the L-shaped corrugated pipe and the L-shaped outlet pipe, thereby having better shielding effect; the utility model adopts a circulating heat radiation structure, which can enhance the heat radiation effect; the utility model discloses novel structure is convenient for manage, maintain and detect the indoor wiring of each drawer.
Description
Technical Field
The utility model relates to a rack technical field especially relates to a high voltage resistant electrified magnetism shielding cabinet body.
Background
The electromagnetic shielding cabinet is a machine for preventing leakage of essential information during operation. It is originated from that computer, communicator and electronic equipment can produce electromagnetic wave with certain intensity when they are normally working, and said electromagnetic wave can produce interference to other equipment or can be received by special equipment so as to steal its working content. Meanwhile, the electronic devices and laboratory detection and testing also need to ensure normal operation in an electromagnetic environment with less than a certain intensity.
The shielding cabinet is a hexahedral room made of metal materials by using the shielding principle, and the energy of the electromagnetic waves is greatly weakened due to the absorption loss, interface reflection loss and in-board reflection loss of the metal plates to the incident electromagnetic waves, so that the shielding room has a shielding effect.
In the practical use process, the shielding effect of the shielding cabinet before wiring is usually very good, but the shielding effectiveness after wiring is greatly reduced, and the shielding effect cannot be recovered as before even the mode that the cable near the interface is used for carrying out wire wrapping or coating with conductive paint is adopted. The shielding cabinet is mainly characterized in that the influence of the tightness on electromagnetic interference shielding is only considered, and the shielding protection of the incoming and outgoing cables is not considered; and the existing electromagnetic shielding cabinet body has a single structure and poor heat dissipation effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a high-voltage resistant electromagnetic shielding cabinet body.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-voltage resistant electromagnetic shielding cabinet body comprises a shielding cabinet body, wherein the shielding cabinet body is composed of a bottom plate, a back plate, two side plates and an arc-shaped top plate, an eave plate is arranged at the top position of an opening at the side surface of the shielding cabinet body, a cabinet door is arranged at the lower position of the opening at the side surface of the shielding cabinet body, waterproof edges are arranged on the periphery of one side of the cabinet door, the waterproof edges are formed by milling communicated right-angle notches on four edges of one side of the cabinet door, one side edge of each waterproof edge is connected to the edge wall of one side plate through a hinge, corresponding lock catches are arranged on the other side edge of each waterproof edge and the edge wall of the other side edge, and the waterproof edges are respectively contacted with the bottom of;
a wire mesh grid is arranged in the shielding cabinet body and consists of three horizontal wire meshes arranged at equal intervals and a vertical wire mesh for equally dividing the three horizontal wire meshes, and the horizontal wire mesh on the uppermost layer is fixedly connected with the bottom of the inner side wall of the eave plate;
the top horizontal wire mesh and the arc-shaped top plate, the eave plate and the back plate form a ventilation chamber, the arc-shaped top plate on the inner side of the ventilation chamber is fixedly connected with a fan, the back plate on the inner side of the ventilation chamber is provided with an air inlet, the eave plate is provided with an inlet hole and a louver air outlet, an L-shaped corrugated pipe is sleeved in the inlet hole in a sealing manner, the L-shaped corrugated pipe extends from the inlet hole to the position below the bottom horizontal wire mesh, the inner side of an opening at the top of the L-shaped corrugated pipe is lined with a sealing sponge ring, the upper part of the L-shaped corrugated pipe is connected to an air;
the wire mesh grids form 6 drawer chambers with the same volume, the pipe wall of the L-shaped corrugated pipe is provided with through holes communicated with the drawer chambers, any drawer chamber is internally sleeved with an installation box body, the installation box body is a box body structure with an opening on the side surface and formed by a square iron panel, a corner-lacking iron back panel, a side iron plate, a bottom iron plate and a top iron plate, the L-shaped corrugated pipe is communicated with the corresponding side opening of the installation box body through the through holes, the corner-lacking iron back panel and the side iron plate on the inner side of the installation box body are both provided with cross arm supports, the outer wall of the square iron panel is provided with a round bore hole and an embedded handle, an L-shaped wire outlet pipe is movably sleeved in the round bore hole, one end of the L-shaped wire outlet pipe extending out of the installation box body is provided with a flange ring sleeved with the round bore hole, a wire clamping sponge is embedded in the pipe orifice of the L-shaped wire, the flange ring is fastened in the circular boring hole through a bolt;
an opening at one end of the L-shaped outlet pipe extending into the installation box body is upward, the bottom of the corner of the L-shaped outlet pipe is connected with a roller, the roller is contacted with a bottom iron plate of the installation box body, and a high-density spring is sleeved between the corner of the L-shaped outlet pipe and the square iron panel;
the cabinet door is provided with six groups of outlet through holes corresponding to the L-shaped outlet pipes;
supporting legs are arranged at the bottom of the shielding cabinet body.
Preferably, the panel materials of the shielding cabinet body, the eave plate and the cabinet door are of three-layer structures, the three-layer structures comprise a seamless steel plate on the outermost side, an interlayer sealing rubber layer and a copper wire ring net on the innermost layer, the sealing rubber layer is glued on the inner surface of the seamless steel plate, and the copper wire ring net is specifically in a spiral coil shape and is embedded in the inner surface of the sealing rubber layer. The copper wire looped network is set into a circular or elliptical spiral coil shape according to the length-width ratio of the plate, and plays a role in strengthening shielding.
Preferably, the side iron plate, the end iron plate and the top iron plate of installation box are smooth planes and have scribbled lubricating oil, and the easy to assemble box slides at the wire netting grid and is drawed, and on drawing out and to install electrical apparatus or circuit breaker on the cross arm support from the side opening part, the wiring order is: the main wire harness divides each branch line from the sealing sponge ring at the opening part of the L-shaped corrugated pipe through the through hole and is connected to an electric appliance or a switch in the corresponding installation box body, then the branch line output by the electric appliance or the switch interface passes through the wire clamping sponge of the L-shaped outlet pipe and is finally output to the outside of the cabinet body through the outlet through hole of the cabinet door; after the wiring is finished, the cabinet door is closed and closed, the cabinet door is abutted against the square iron panel, and meanwhile, the magnet sheet on the inner side of the square iron panel is attracted with the wire netting grid, so that the mounting box body is fastened.
Preferably, the periphery of the inner side surface of the square iron panel is lined with magnet sheets, and the periphery of the outer side surface of the square iron panel is lined with a rubber layer. The rubber layer has the buffer function by the attraction of the magnet sheets on the inner side of the square iron panel and the wire mesh grids.
Preferably, the waterproof edge of the cabinet door is lined with a rubber layer, the inner side face of the cabinet door is in contact with the rubber layer on the outer side face of the square iron panel, and the rubber layer on the waterproof edge has a sealing and waterproof effect. The sealing sponge ring and the wire clamping sponge are used for protecting the wiring path of the cable to obtain sealing protection. Even in some special dry environments, the cabinet door can be directly detached, the structure of six groups of drawer chambers can be kept to be used as an electromagnetic shielding cabinet, the protection effect of the cabinet door is increased, and the grade of shielding efficiency is favorably improved.
Preferably, the L-shaped corrugated tube is a tin bronze corrugated tube and the surface thereof is coated with a silver conductive paint, and the outer surface of the L-shaped outlet tube is also coated with a silver conductive paint. The cables of the input bus and the output branch are protected by shielding, and the L-shaped corrugated pipe also plays a role in air induction and heat dissipation.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model adopts the drawer type separated shielding cabinet body structure, the L-shaped corrugated pipe made of tin-copper material with shielding function is used as the inlet pipe and the air inlet pipe of each drawer room, and simultaneously plays the role of heat dissipation and the shielding protection effect on the input bus, and the L-shaped outlet pipe is used as the shielding protection pipe of the output cable, so that the branch lines are also protected under the double shielding effect of the high-density spring and the conductive paint; and indoor electrical apparatus and wiring department then have the three-layer shielding protection of shielding cabinet body, cabinet door, iron wire net bars and installation box, make the utility model discloses a shielding effect preferred is applicable to secret computer lab or the control room that requires the grade height.
The utility model discloses a circulating heat radiation structure, the air current direction is: the air inlet, the fan, the L-shaped corrugated pipe, the mounting box body, the wire mesh grid and the louver air outlet form a multi-chamber simultaneous air blowing circulating heat dissipation structure, and the heat dissipation effect can be enhanced.
The utility model discloses novel structure, it is convenient to use, and the convenience is managed, is maintained and operation process such as detection to the indoor wiring of each drawer.
Drawings
Fig. 1 is a perspective view of a high voltage resistant electromagnetic shielding cabinet provided by the utility model;
fig. 2 is a first internal structure diagram of the high-voltage resistant electromagnetic shielding cabinet body provided by the utility model;
fig. 3 is a second internal structure diagram of the high-voltage resistant electromagnetic shielding cabinet of the present invention;
fig. 4 is a multilayer structure diagram of the plate material of the high voltage resistant electromagnetic shielding cabinet body provided by the utility model.
In the figure: the shielding cabinet comprises a shielding cabinet body 1, a cabinet door 2, a waterproof edge 3, a hinge 4, a lock catch 5, a wire mesh grid 6, a fan 7, an air inlet 8, a louver air outlet 9, an L-shaped corrugated pipe 10, a sealing sponge ring 11, an installation box body 12, a cross arm support 13, a circular boring hole 14, an embedded handle 15, an L-shaped outlet pipe 16, a flange ring 17, a wire clamping sponge 18, a roller 19, a high-density spring 20, an outlet through hole 21 and supporting legs 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a high voltage resistant electromagnetic shielding cabinet body comprises a shielding cabinet body 1, wherein the shielding cabinet body 1 specifically comprises a bottom plate, a back plate, two side plates and an arc-shaped top plate, an eave plate is arranged at the top position of an opening at the side surface of the shielding cabinet body 1, a cabinet door 2 is arranged at the lower position of the opening at the side surface of the shielding cabinet body 1, a waterproof edge 3 is arranged around one side of the cabinet door 2, the waterproof edge specifically comprises a right-angle notch which is milled and communicated on four sides of one side of the cabinet door 2, one side of the waterproof edge 3 is connected with the side wall of one of the side plates through a hinge 4, a corresponding lock catch 5 is arranged on the other side of the waterproof edge 3 and the side wall of the other side, and the waterproof edge 3 is respectively contacted with the; a wire netting grid 6 is arranged inside the shielding cabinet body 1, the wire netting grid 6 consists of three horizontal wire netting which are arranged at equal intervals and a vertical wire netting which divides the three horizontal wire netting equally, and the horizontal wire netting at the uppermost layer is fixedly connected with the bottom of the inner side wall of the eave plate; the top horizontal wire mesh, the arc-shaped top plate, the eave plate and the back plate form a ventilation chamber, a fan 7 is fixedly connected to the arc-shaped top plate on the inner side of the ventilation chamber, an air inlet 8 is formed in the back plate on the inner side of the ventilation chamber, a wire inlet hole and a louver air outlet 9 are formed in the eave plate, an L-shaped corrugated pipe 10 is sleeved in the wire inlet hole in a sealing mode, the L-shaped corrugated pipe 10 extends from the wire inlet hole to the position below the bottom horizontal wire mesh, a sealing sponge ring 11 is lined on the inner side of an opening in the top of the L-shaped corrugated pipe 10, the upper portion of the L-shaped corrugated pipe 10 is connected to the air; the wire netting grille 6 forms 6 drawer chambers with the same volume, the pipe wall of the L-shaped corrugated pipe 10 is provided with a through hole communicated with the drawer chambers, any drawer chamber is sleeved with a mounting box body 12, the mounting box body 12 is a box body structure with an opening on the side face and is composed of a square iron panel, a unfilled corner iron back panel, a side iron plate, a bottom iron plate and a top iron plate, the L-shaped corrugated pipe 10 is communicated with the corresponding side opening of the mounting box body 12 through the through hole, the unfilled corner iron back panel and the side iron plate on the inner side of the mounting box body 12 are both provided with a cross arm bracket 13, the outer wall of the square iron panel is provided with a circular bore hole 14 and an embedded handle 15, an L-shaped outlet pipe 16 is movably sleeved in the circular bore hole 14, one end of the L-shaped outlet pipe 16 extending out of the mounting box body 12 is provided with a flange ring 17 sleeved with the circular bore hole 14, and a pipe orifice, the wire clamping sponge 18 is a cross-shaped wire clamping groove structure formed by four groups of special-shaped sponge blocks, and the flange ring 17 is fastened in the round boring hole 14 through bolts; an opening at one end of the L-shaped outlet pipe 16 extending into the installation box body 12 is upward, the bottom of the corner of the L-shaped outlet pipe 16 is connected with a roller 19, the roller 19 is contacted with a bottom iron plate of the installation box body 12, and a high-density spring 20 is sleeved between the corner of the L-shaped outlet pipe 16 and the square iron panel; the cabinet door 2 is provided with six groups of outlet through holes 21 corresponding to the L-shaped outlet pipes 16; the bottom of the shielding cabinet body 1 is provided with supporting legs 22.
Referring to fig. 1, the panel materials of the shielding cabinet body 1, the eave plate and the cabinet door 2 are of three-layer structures, the three-layer structures comprise a seamless steel plate on the outermost side, an interlayer sealing rubber layer and an innermost copper wire ring network, the sealing rubber layer is glued on the inner surface of the seamless steel plate, and the copper wire ring network is specifically in a spiral coil shape and is embedded in the inner surface of the sealing rubber layer. The copper wire looped network is set into a circular or elliptical spiral coil shape according to the length-width ratio of the plate, and plays a role in strengthening shielding.
Referring to fig. 1, the side iron plate, the bottom iron plate and the top iron plate of installation box 12 are smooth planes and are smeared with lubricating oil, and the box 12 of easy to assemble slides at wire netting grid 6 and is pulled out, and can install electrical apparatus or circuit breaker on cross arm support 13 from the side opening part, and the wiring order is: the main wire harness divides each branch line from the sealing sponge ring 11 at the opening part of the L-shaped corrugated pipe 10 through the through hole and accesses to an electric appliance or a switch in the corresponding installation box body 12, then the branch line output by the electric appliance or the switch interface passes through the wire clamping sponge 18 of the L-shaped outlet pipe 16 and is finally output to the outside of the cabinet body through the outlet through hole 21 of the cabinet door 2; after the wiring is finished, the cabinet door 2 is closed and closed, the cabinet door 2 is abutted against the square iron panel, and meanwhile, the magnet sheet on the inner side of the square iron panel is attracted with the wire netting grid 6, so that the mounting box body 12 is fastened.
Referring to fig. 1, the periphery of the inner side surface of the square iron panel is lined with magnet sheets, and the periphery of the outer side surface of the square iron panel is lined with rubber layers. The magnet sheet on the inner side of the square iron panel is attracted with the wire mesh grid 6, and the rubber layer has the buffer function.
Referring to fig. 1, the waterproof edge 3 of the cabinet door 2 is lined with a rubber layer, the inner side surface of the cabinet door 2 is in contact with the rubber layer on the outer side surface of the square iron panel, and the rubber layer on the waterproof edge 3 has a sealing and waterproof effect. The cable routing path is protected in a sealing way by the sealing sponge ring 11 and the wire clamping sponge 18. Even in some special dry environments, the cabinet door can be directly detached, the structure of six groups of drawer chambers can be kept to be used as an electromagnetic shielding cabinet, and the protection effect of the cabinet door 2 is increased, so that the shielding efficiency grade is improved.
Referring to fig. 1, the L-shaped corrugated tube 10 is specifically a tin bronze corrugated tube and its surface is coated with a silver conductive paint, and the outer surface of the L-shaped outlet tube 16 is also coated with a silver conductive paint. The cables of the input bus and the output branch are protected by shielding, and the L-shaped corrugated pipe 10 also plays a role in air induction and heat dissipation.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The high-voltage-resistant electromagnetic shielding cabinet body comprises a shielding cabinet body (1) and is characterized in that the shielding cabinet body (1) is composed of a bottom plate, a back plate, two side plates and an arc-shaped top plate, a eave plate is arranged at the top position of a side opening of the shielding cabinet body (1), a cabinet door (2) is arranged at the lower position of the side opening of the shielding cabinet body (1), a waterproof edge (3) is arranged around one side of the cabinet door (2), right-angle notches communicated with one another are milled on four sides of one side of the cabinet door (2), one side of the waterproof edge (3) is connected to the side wall of one side plate through a hinge (4), a corresponding lock catch (5) is arranged on the other side of the waterproof edge (3) and the side wall of the other side, and the waterproof edge (3) is respectively connected with the bottom and the eave plate, The bottom plate is contacted with the side plate;
the shielding cabinet is characterized in that a wire mesh grid (6) is arranged inside the shielding cabinet body (1), the wire mesh grid (6) consists of three horizontal wire meshes which are arranged at equal intervals and a vertical wire mesh which divides the three horizontal wire meshes equally, and the horizontal wire mesh on the uppermost layer is fixedly connected with the bottom of the inner side wall of the eave plate;
the top layer of the horizontal wire mesh, the arc-shaped top plate, the eave plate and the back plate form a ventilation chamber, the arc-shaped top plate on the inner side of the ventilation chamber is fixedly connected with a fan (7), the back plate on the inner side of the ventilation chamber is provided with an air inlet (8), the eave plate is provided with a wire inlet hole and a louver air outlet (9), an L-shaped corrugated pipe (10) is sleeved in the wire inlet hole in a sealing mode, the L-shaped corrugated pipe (10) extends from the wire inlet hole to the position below the bottom layer of the horizontal wire mesh, a sealing sponge ring (11) is lined on the inner side of an opening in the top of the L-shaped corrugated pipe (10), the upper portion of the L-shaped corrugated pipe (10) is connected to the air outlet end of the fan (7;
the steel wire grid (6) forms a drawer chamber with 6 identical volumes, through holes communicated with the drawer chamber are formed in the pipe wall of the L-shaped corrugated pipe (10), an installation box body (12) is sleeved in any drawer chamber, the installation box body (12) is a box body structure with an opening on the side face and specifically comprises a square iron panel, an unfilled corner iron back plate, a side iron plate, a bottom iron plate and a top iron plate, the L-shaped corrugated pipe (10) is communicated with the corresponding side opening of the installation box body (12) through the through holes, the unfilled corner iron back plate and the side iron plate on the inner side of the installation box body (12) are both provided with a cross arm support (13), the outer wall of the square iron panel is provided with a circular boring hole (14) and an embedded handle (15), an L-shaped wire outlet pipe (16) is movably sleeved in the circular boring hole (14), one end, extending out of the installation box body (12), of the L-shaped wire outlet pipe (16) is provided with a flange ring (17), a wire clamping sponge (18) is embedded in a pipe orifice of the L-shaped wire outlet pipe (16) extending out of the installation box body (12), the wire clamping sponge (18) is a cross-shaped wire clamping groove structure formed by four groups of special-shaped sponge blocks, and the flange ring (17) is fastened in the round boring hole (14) through bolts;
an opening at one end, extending into the installation box body (12), of the L-shaped outlet pipe (16) is upward, the bottom of the corner of the L-shaped outlet pipe (16) is connected with a roller (19), the roller (19) is in contact with a bottom iron plate of the installation box body (12), and a high-density spring (20) is sleeved between the corner of the L-shaped outlet pipe (16) and the square iron plate;
the cabinet door (2) is provided with six groups of outlet through holes (21) corresponding to the L-shaped outlet pipes (16);
supporting legs (22) are arranged at the bottom of the shielding cabinet body (1).
2. The high-voltage resistant electromagnetic shielding cabinet body according to claim 1, wherein the panel materials of the shielding cabinet body (1), the eave plate and the cabinet door (2) are all three-layer structures, each three-layer structure comprises an outermost seamless steel plate, an interlayer sealing rubber layer and an innermost copper wire looped network, the sealing rubber layers are glued on the inner surfaces of the seamless steel plates, and the copper wire looped networks are spiral coils and are embedded on the inner surfaces of the sealing rubber layers.
3. The cabinet body with high voltage resistance and electromagnetic shielding as claimed in claim 1, wherein the side iron plate, the bottom iron plate and the top iron plate of the installation box body (12) are smooth planes and coated with lubricating oil.
4. The high-voltage resistant electromagnetic shielding cabinet body as claimed in claim 1, wherein the inner side of the square iron panel is lined with magnet sheets at the periphery, and the outer side of the square iron panel is lined with a rubber layer at the periphery.
5. The cabinet body with high voltage resistance and electromagnetic shielding as claimed in claim 1, wherein the waterproof edge (3) of the cabinet door (2) is lined with a rubber layer, and the inner side of the cabinet door (2) is in contact with the rubber layer on the outer side of the square iron panel.
6. High voltage resistant electromagnetic shielding cabinet according to claim 1, wherein said L-shaped corrugated tube (10) is a tin bronze corrugated tube and its surface is coated with silver conductive paint, and the outer surface of said L-shaped outlet tube (16) is also coated with silver conductive paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020682815.3U CN211671123U (en) | 2020-04-29 | 2020-04-29 | High-voltage-resistant electromagnetic shielding cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020682815.3U CN211671123U (en) | 2020-04-29 | 2020-04-29 | High-voltage-resistant electromagnetic shielding cabinet |
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| Publication Number | Publication Date |
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| CN211671123U true CN211671123U (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020682815.3U Active CN211671123U (en) | 2020-04-29 | 2020-04-29 | High-voltage-resistant electromagnetic shielding cabinet |
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| CN (1) | CN211671123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115397228A (en) * | 2022-08-22 | 2022-11-25 | 广州国保科技有限公司 | Shielding cabinet |
-
2020
- 2020-04-29 CN CN202020682815.3U patent/CN211671123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115397228A (en) * | 2022-08-22 | 2022-11-25 | 广州国保科技有限公司 | Shielding cabinet |
| CN115397228B (en) * | 2022-08-22 | 2023-11-24 | 广州国保科技有限公司 | Shielding cabinet |
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