CN114809888A - Plasma electromagnetic shielding door - Google Patents
Plasma electromagnetic shielding door Download PDFInfo
- Publication number
- CN114809888A CN114809888A CN202210360011.5A CN202210360011A CN114809888A CN 114809888 A CN114809888 A CN 114809888A CN 202210360011 A CN202210360011 A CN 202210360011A CN 114809888 A CN114809888 A CN 114809888A
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- frame
- door
- door leaf
- insulating
- groove
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/18—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against harmful radiation
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention belongs to the technical field of shielded doors, and particularly relates to a plasma electromagnetic shielding door which comprises a door frame and a door leaf, wherein the door leaf is movably connected with the door frame through a hinge, the door leaf is provided with a knife inserting frame, the door leaf is provided with an insulating soft cover, the tip end of the knife inserting frame penetrates through the insulating soft cover and is exposed to the outer side of the insulating soft cover, after the door leaf is closed, the insulating soft cover is attached to an opening of the groove frame to form a closed shielding space in the groove frame, the knife inserting frame is inserted into the groove frame, the center of the rear part in the groove frame is provided with the knife frame, the knife frame is opposite to the tip end of the knife inserting frame, the knife inserting frame is not contacted with the groove frame, the shielding space is filled with inert gas, the groove frame and/or the door frame are connected with an electrode A, the knife inserting frame and/or the door leaf are connected with an electrode B, after the electrode and the electrode are electrified, the glow discharge breakdown of the inert gas is generated in the shielding space to generate plasma shielding electromagnetic waves, the door leaf opening and closing force is small, the shielding performance is strong, and the comfort and the safety of use are strong.
Description
Technical Field
The invention belongs to the technical field of shield doors, and particularly relates to a plasma electromagnetic shield door.
Background
The shielding door is an indispensable important component device for darkrooms, shielding rooms and other shielding projects, and the shielding performance of the shielding door directly influences the shielding performance of the whole shielding project so as to influence the electromagnetic wave performance test of products.
Electromagnetic shield door shielding structure is the sword spring pair that mechanical type slotting tool frame and spring leaf groove are constituteed, its principle: because the contact of the blade spring pair is good, the space reflecting surface and the intersection angle are large and complex, the electromagnetic wave amplitude is reflected into the blade spring pair for a plurality of times and generates a plurality of eddy currents to consume a large amount of energy, and the shielding structure has obvious shielding performance and is continuously used up to now. The knife spring pair composed of the slotting tool frame and the spring leaf groove (spring leaves are symmetrically arranged on two sides of the groove), the mutual friction force of the slotting tool frame and the spring leaves is huge, so that the manual opening and closing of the shielding door needs large force, various force reducing mechanisms and electric mechanisms are generated for the design to open and close the door, although the manual force is saved, the mechanism is complex, much power is consumed, the environment is influenced, and the manual door opening mechanism cannot be removed to ensure the safety of opening and closing the door even when power failure occurs, and must be reserved. The cost of the screen door is greatly increased.
In addition, the knife spring pair does not need to lead to rust adhesion of the knife inserting frame and the spring piece for a long time to enable the shielding door to be opened violently, the static friction force between the knife inserting frame and the reed needs to be overcome during opening, the static friction force is large due to the long peripheral contact line of the door seam, the manual opening force is large, the opening is inconvenient, and meanwhile, due to the existence of the friction force during opening, the reed is easily damaged, the service life of the reed is shortened, and the use safety and comfort of a user are seriously affected.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the plasma electromagnetic shielding door, aiming at the defects, the opening and closing force of the door leaf is small, the shielding performance of the electromagnetic wave reaches the use requirement, and the comfort and the safety in use are high.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a plasma electromagnetic shielding door comprises a door frame and a door leaf, wherein the door leaf is movably connected with the door frame through a hinge, the door leaf is provided with a cutter inserting frame, the door frame is provided with a groove frame, the door leaf is provided with an insulating soft cover, the tip of the cutter inserting frame penetrates through the insulating soft cover and is exposed to the outer side of the insulating soft cover, after the door leaf is closed, the insulating soft cover is attached to an opening of the groove frame to form a closed shielding space in the groove frame, the cutter inserting frame is inserted into the groove frame, the center of the inner rear part of the groove frame is provided with a cutter frame, the cutter frame is opposite to the tip of the cutter inserting frame, the cutter inserting frame is not in contact with the groove frame, the shielding space is filled with inert gas, the groove frame and/or the door frame are connected with an electrode A, the cutter inserting frame and/or the door leaf are connected with an electrode B, after the electrode A and the electrode are electrified, glow discharge breakdown of the inert gas is generated in the shielding space to generate plasma shielding electromagnetic waves, the slotting tool frame and the tool frame are positioned on the same straight line, and the groove frame, the door leaf and the slotting tool frame are mutually insulated.
Furthermore, the door frame is connected with the hinge fixing part, the door leaf is connected with the hinge movable part, an insulating plate is arranged between the hinge movable part and the door leaf, a connecting piece penetrating through the door leaf and extending to the hinge movable part is arranged on the slotting tool frame, an insulating sleeve insulated from the door leaf is sleeved on the connecting piece, the connecting piece forms the electrode A, and an insulating rear plate insulated from the groove frame is arranged on the rear wall of the door leaf.
Furthermore, the connecting piece is a connecting bolt, the inner end of the connecting bolt is welded and fixed on the slotting tool frame, the insulating sleeve is sleeved outside the connecting bolt, the outer end of the connecting bolt is provided with a locking nut, and an auxiliary insulating plate is arranged between the locking nut and the movable part of the hinge.
Furthermore, the soft insulating cover is fixed in an embedding groove formed in the door leaf and comprises an outer soft cover and a core block inside the outer soft cover, an inner cavity for containing the core block is formed in the outer soft cover, a first metal layer is arranged on the wall of the inner cavity, a second metal layer is arranged on the outer surface of the core block, a plurality of supporting blocks which are uniformly distributed are arranged outside the core block, the inner end and the outer end of each supporting block are correspondingly connected onto the second metal layer and the first metal layer, a cavity is formed between the first metal layer and the second metal layer, and the cavity is communicated with the shielding space through a conduction pipe.
Furthermore, the slot frame is provided with an air inlet and an air outlet, and the air inlet is connected with external air supply equipment.
Furthermore, an insulating auxiliary plate is arranged between the door leaf and the cutter inserting frame.
Furthermore, the slot frame sets up door frame inner wall department, the slot frame is equipped with the connecting portion that extend to the door frame rear side, connecting portion and door frame welded connection.
Further, the electrode A is connected with an anode end of an external power supply, the electrode B is connected with a cathode end of the external power supply, and the electrode B is connected to the door frame.
Furthermore, the insulating sleeve and the insulating plate are of an integrated structure.
The invention has the beneficial effects that: contactless between slotting tool frame and chase has eliminated the ascending static friction of opening the side, the dynamics that the door leaf was opened that reduces that is showing, it is laborsaving comfortable, for providing good designing condition (the driver of available low power small volume for full-automatic electromagnetic screen door, the total volume of full-automatic electromagnetic screen door has been compressed greatly), chase department forms the shielding space, circular telegram produces plasma in the shielding space, shielding performance to the electromagnetic wave is stronger, can reach the user demand, compare prior art, the cost is showing and is reducing, let the safe in utilization of shielding door, high efficiency and comfortable.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic cross-sectional view of example 1 of the present invention.
Fig. 2 is a schematic partial cross-sectional view of a part where the knife holder and the sash are engaged in embodiment 1 of the present invention.
Fig. 3 is a schematic cross-sectional view of a connecting bolt in embodiment 1 of the present invention.
Fig. 4 is a schematic sectional view of an insulating soft cover in embodiment 2 of the present invention.
Fig. 5 is a partial sectional view of the insulating soft cover in embodiment 3 of the present invention.
Fig. 6 is a schematic partial cross-sectional view of a cavity in embodiment 3 of the present invention.
Wherein: 1. a door frame; 11. an electrode A; 2. a door leaf; 21. a knife inserting frame; 22. embedding a groove; 221. an air inlet; 222. an air outlet; 3. a hinge fixing portion; 31. a hinge movable portion; 4. a bezel frame 41, a connecting portion; 42. a knife frame; 5. an insulating soft cover; 51. a cavity; 52. an outer layer soft cover; 53. a core block; 54. a first metal layer; 55. a second metal layer; 56. a support block; 6. a power supply 7, a connecting bolt 8 and an insulating plate; 81. An insulating sleeve; 82. a secondary insulating plate; 84. an insulating rear plate; 85. an insulating sub-plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1: referring to fig. 1, a plasma electromagnetic shielding door comprises a door frame 1, a door leaf 2 and a power supply 6, wherein the door leaf 2 is movably connected with the door frame 1 through a hinge, the door leaf 2 is connected with a hinge movable part 31, the door frame 1 is connected with a hinge fixing part 3, the door leaf 2 side is taken as the front side (the door leaf 2 is opened forwards), the door frame 1 side is taken as the rear side (the door leaf 2 is closed backwards), the door leaf 2 is provided with a knife inserting frame 21, the inner side of the door frame 1 is provided with a groove frame 4, a knife frame 42 is arranged in the groove frame 4, a distance is arranged between the knife frame 42 and the inner wall of the groove frame 4, preferably, the knife frame 42 is arranged at the middle part of the groove frame 4, the knife frame 42 is fixed at the rear part of the groove frame 4, an insulating soft cover 5 is arranged at the position corresponding to the groove frame 4 on the door leaf 2, the installation and fixation of the insulating soft cover 5 are convenient, referring to fig. 2, the embedded groove 22 is arranged on the door leaf 2, the cross section of the embedded groove 22 is U-shaped, the insulating soft cover 5 is embedded in the embedded groove 22, the contact surface of the insulating soft cover 5 and the embedded groove 22 can be bonded through glue, the connection strength is improved, the tip of the slotting tool frame 21 penetrates through the insulating soft cover 5 and is exposed to the rear side of the insulating soft cover, after the door leaf 2 is closed, the insulating soft cover 5 is attached to the opening of the groove frame 4, a closed shielding space is formed in the groove frame 4, the slotting tool frame 21 is inserted into the shielding space, the slotting tool frame 21 is not in contact with the groove frame 4, the tips of the slotting tool frame 21 and the knife frame 42 are opposite and are positioned on the same straight line, inert gas is filled in the shielding space, the inert gas preferably adopts neon, the power supply 6 adopts a high-frequency power supply, the negative electrode of the power supply 6 is connected with the door frame 1, the positive electrode of the power supply 6 is connected with the slotting tool frame 21, and the groove frame 4 is insulated from the slotting tool frame 21 and the door leaf 2.
The use principle is as follows: after the door leaf 2 is closed, the groove frame 4 is closed by the insulating soft cover 5 to form a shielding space, neon is filled in the shielding space, the power supply 6 is opened, the knife frame 42 in the shielding space and the slotting knife frame 21 generate glow discharge to break down the neon to generate plasma, the plasma is dispersed in the shielding space, the plasma and electromagnetic waves interact with each other, so that the transmission attenuation or reflection of the electromagnetic waves is caused, the electromagnetic wave shielding effect is generated, the electromagnetic wave shielding can reach the use requirement, because the slotting knife frame 21 is not in contact with the groove frame 4, static friction does not exist at the position, the door leaf 2 can be opened only by overcoming the friction at the hinge, compared with the existing shielding door, the opening force of the door leaf 2 is greatly reduced, the opening force of the door leaf 2 is reduced to about 3 newtons, the manual opening and closing of the door leaf 2 are convenient, the pressure and the energy consumption of an electric mechanism of the door leaf 2 of the electric switch are reduced, and the use effect is improved, compared with the prior art, the structure is simplified, the cost is reduced, the shielding door is safe and efficient to use and is more comfortable, a stable electromagnetic wave shielding layer is formed between the door leaf 2 and the door frame 1 in the shielding space at the groove frame 4, electromagnetic waves are effectively blocked and attenuated in propagation, and meanwhile, the metal inner wall of the shielding space has a consumption effect on the electromagnetic waves and the electromagnetic shielding door.
The depth of the embedded groove 22 is smaller than the thickness of the insulating soft cover 5, so that the insulating soft cover 5 can protrude out of the embedded groove 22 to seal the groove frame 4, thereby preventing dust, avoiding the leakage of inert gas and ensuring the tightness of a shielding space.
In a preferred embodiment, the distance between the notch of the embedded groove 22 and the bezel 4 is not more than 1.5cm, and the electromagnetic wave is reflected by the groove wall of the embedded groove 22 and the front wall of the bezel 4 at the position of the soft insulating cover 5, so that the electromagnetic wave energy is consumed in the process, the electromagnetic wave is attenuated, and the soft insulating cover 5 also has the functions of consuming and shielding the electromagnetic wave.
Specifically, the groove frame 4 is arranged on the inner side wall opposite to the door frame 1, the connecting portion 41 extending to the rear side wall of the door frame 1 is arranged on the rear side of the groove frame 4, the connecting portion 41 and the rear side of the door frame 1 are welded in full arc welding mode, the sealing performance of the connecting portion can be kept in the full arc welding mode, the outer side wall of the door frame 1 is connected with the electrode A11, the electrode A11 is connected with the cathode electrode of the power source 6, and after the door frame 1 is fixed, the electrode A11 is located in a wall and is convenient to route, and a good protection effect is achieved.
Referring to fig. 3, a connection bolt 7 is arranged on the door leaf 2, the connection bolt 7 penetrates through the door leaf 1 from back to front, the structure is simplified, the cost is reduced, the inner end of the connection bolt 7 is welded on the blade frame 21 in an arc welding full-welding mode, the blade frame 21 is fixed on the rear wall surface of the door leaf 2, the front end of the connection bolt 7 penetrates through the hinge movable portion 31, the hinge movable portion 31 is connected with the door leaf 2 through a locking nut, meanwhile, the connection bolt 7 forms an electrode a electrified for the blade frame 21, the connection bolt 7 is connected with the anode electrode of the power supply 6 through a lead, no extra electrode is needed to be arranged, the cost is reduced, meanwhile, the connection bolt 7 and the blade frame 21, the door leaf 2 and the hinge movable portion 31 all have a connection relation, the connection strength is high, and the reliability of opening and closing of the door leaf 2 is guaranteed.
Specifically, to improve the safety of the door leaf 2, referring to fig. 2, an insulating auxiliary plate 85 is disposed between the door leaf 2 and the knife insertion frame 21 to prevent the door leaf 2 from being electrified, an insulating plate 8 is disposed between the hinge movable portion 31 and the door leaf 2, an insulating sleeve 81 is sleeved outside a bolt body of the connecting bolt 7, the insulating sleeve 81 and the insulating plate 8 can be of an integral structure, the insulating plate 8 and the insulating sleeve 81 can enable the connecting bolt 7 to be insulated from the door leaf 2, an auxiliary insulating plate 82 is disposed between the locking nut and the hinge movable portion 31 to enable the connecting bolt 7 to be insulated from the hinge movable portion, that is, the power supply 6 is electrically connected with the knife insertion frame 21 only through the connecting bolt 7, the door leaf 2 is not electrified to avoid accidental electric shock, an insulating rear plate 84 is disposed on a rear wall surface of the door leaf 2, the insulating rear plate 84 enables the door leaf 2 to be insulated from the groove frame 4 and the door frame 1 to prevent a short circuit between the door leaf 2 and the groove frame 4, Avoid short circuit between slotting tool frame 21 and cell-frame 4, effectual glow discharge who has guaranteed between slotting tool frame 21 and knife frame 42 punctures neon and produces plasma, certainly, for improving the security, can be at naked door leaf 2, door frame 1, the cladding insulating layer on the hinge, in order to avoid the electric leakage, improve corrosion-resistant ability simultaneously, connecting bolt 7 can pass through the insulating tube cladding with the wire junction, avoid the electric leakage, this connection structure had both realized the connection of door leaf 2, realized again for the electricity connection of slotting tool frame 21, and cost is reduced.
In order to enhance the dispersivity of plasma in a shielding space and ensure that the shielding space is filled with the plasma and has reliable electromagnetic wave shielding performance, the left side and the right side of a tank frame 4 are respectively provided with an air inlet 221 and an air outlet 222, the air inlet 221 is connected with external air supply equipment to timely supplement inert gas into the shielding space, after a door leaf 2 is closed, the air supply equipment supplies neon to the shielding space, the inflation quantity of the neon is 1 liter/minute, then a power supply 6 is switched on to generate the plasma, the air outlet 222 can be connected with air extraction equipment or external gas circulation equipment to keep certain gas fluidity in the shielding space, improve the dispersion effect of the plasma in the shielding space and improve the shielding performance of electromagnetic waves, the air inlet 221 and the air outlet 222 are oppositely arranged to form stable fluidity and have better promotion effect on the dispersion performance of the plasma, the shielding performance against electromagnetic waves is enhanced.
Example 2: the only difference between this embodiment and embodiment 1 is that, in this embodiment, referring to fig. 4, a cavity 51 is arranged in the insulating soft cover 5, the cavity 51 is communicated with the shielding space through a conduction pipe, and plasma enters the cavity 51 through the conduction pipe, so that the insulating soft cover 5 has an electromagnetic wave shielding effect at the same time, and the shielding effect of the shielded door is improved. The gas supply device, the gas inlet 221 and the gas outlet 222 can promote the movement of the plasma to the cavity 51, have a good promotion effect on the dispersion of the plasma, and enhance the shielding performance on electromagnetic waves.
Example 3: the only difference between this embodiment and embodiment 1 is that, in this embodiment, referring to fig. 4 and 5, the soft insulating cover 5 includes an outer soft cover 52 and a core block 53 inside the outer soft cover 52, an inner cavity for accommodating the core block 53 is formed inside the outer soft cover 52, referring to fig. 6, a wall of the inner cavity is provided with a first metal layer 54, an outer surface of the core block 53 is provided with a second metal layer 55, the core block 53 is provided with a plurality of supporting blocks 56 uniformly distributed outside, inner and outer ends of the supporting blocks 56 are correspondingly connected to the second metal layer 55 and the first metal layer 54, a cavity 51 is formed between the first metal layer 54 and the second metal layer 55, plasma in the shielding space is dispersed into the cavity 51 through a conducting pipe, the soft insulating cover 5 has an electromagnetic wave shielding performance, the supporting blocks 56 function of supporting the outer soft cover 52, an outer peripheral surface of the supporting blocks 56 is an inward concave arc surface, and the structure has strong supporting performance and strong pressure resistance, can guarantee the support nature to outer soft lid 52, outer soft lid 52 has certain deformability, after contacting with the cell frame 4, thereby can be by the extrusion play sealed effect, a plurality of evenly distributed's supporting shoe 56 can the outer soft lid 52 of effectual support, keep the effective space of cavity 51 department, guarantee the distribution of plasma, first metal level 54, the electromagnetic wave shielding effect in space 51 has been strengthened to second metal level 55, the electromagnetic wave shielding ability of further reinforcing electromagnetic shield door, make this shield door have reliable electromagnetic wave shielding effect, the effectual propagation of blocking the electromagnetic wave in insulating soft lid department, the reinforcing is to the shielding performance of electromagnetic wave.
The metal reed is embedded in the outer soft cover 52, the rear end of the metal reed extends to the position where the rear end surface of the outer soft cover 52 corresponds to the frame body end surface of the groove frame 4, the rear end of the metal reed is partially contacted with the frame body end surface of the groove frame 4, metal contact is formed at the position, the transmission of electromagnetic waves is effectively blocked, the electromagnetic wave shielding effect is enhanced, the electromagnetic wave leakage is avoided, the outer end of the metal reed extends to the side end surface of the outer soft cover 52 and is contacted with the groove wall of the embedding groove 22, the metal contact is kept at the position, the electromagnetic wave leakage is avoided, the rear end of the metal reed is in end surface contact with the groove frame 4, no static friction exists in the opening direction of the door leaf 2, therefore, the resistance of opening and closing of the door leaf 2 cannot be increased, the position of the insulating soft cover 5 has reliable electromagnetic wave shielding performance, and the number of the metal reed can be correspondingly increased according to the requirement of the electromagnetic wave shielding, thereby guarantee shielding performance, the material such as insulating soft lid 5, insulation board 8, insulating cover 81 can adopt insulating rubber, because reliable insulating nature has between door leaf 2 and slotting tool frame 21, is uncharged on the door leaf 2, that is to say, the metal reed can not lead to the short circuit between door leaf 2 and door frame 1, can be abundant guarantee take place glow discharge in the shielded space and puncture neon and produce a large amount of plasmas.
At the joint of the door leaf 2 and the door frame 1, the shielding space of the groove frame 4 is filled with plasma for blocking electromagnetic wave transmission, the cavity 51 of the insulating soft cover 5 is also filled with plasma, and the insulating soft cover 5, the groove frame 4 and the embedded groove 22 are in metal contact through metal reeds, so that a closed electromagnetic wave shielding structure is formed, the shielding door has a reliable shielding effect, meanwhile, the opening and closing of the door leaf 2 can be realized by applying small force, the usability is strong, and the shielding door has good popularization and application prospects.
The above description is the preferred embodiment of the present application, and the scope of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a plasma electromagnetic screen door, includes door frame, door leaf, and the door leaf passes through hinge and door frame swing joint, is equipped with the slotting tool frame on the door leaf, its characterized in that: the door frame is provided with a groove frame, the door leaf is provided with an insulating soft cover, the tip of the slotting tool frame penetrates through the insulating soft cover and is exposed to the outer side of the insulating soft cover, the insulating soft cover is attached to the opening of the groove frame after the door leaf is closed, a closed shielding space is formed in the groove frame, the slotting tool frame is inserted into the groove frame, a tool frame is arranged in the center of the inner rear portion of the groove frame, the tool frame is opposite to the tip of the slotting tool frame, the slotting tool frame is not in contact with the groove frame, inert gas is filled in the shielding space, the groove frame and/or the door frame are/is connected with an electrode A, the slotting tool frame and/or the door leaf are/is connected with an electrode B, after the electrode A and the electrode B are electrified, glow discharge breakdown of the inert gas is generated in the shielding space, plasma shielding electromagnetic waves are generated, the slotting tool frame and the tool frame are positioned on the same straight line, and the groove frame, the door leaf and the slotting tool frame are mutually insulated.
2. The plasma electromagnetic shield door of claim 1, wherein: the door frame is connected with the hinge fixing part, the door leaf is connected with the hinge movable part, an insulating plate is arranged between the hinge movable part and the door leaf, a connecting piece penetrating through the door leaf and extending to the hinge movable part is arranged on the slotting tool frame, an insulating sleeve insulated from the door leaf is sleeved on the connecting piece, the connecting piece forms the electrode A, and an insulating rear plate insulated from the groove frame is arranged on the rear wall of the door leaf.
3. The plasma electromagnetic shield door of claim 2, wherein: the connecting piece is a connecting bolt, the inner end of the connecting bolt is welded and fixed on the slotting tool frame, the insulating sleeve is sleeved outside the connecting bolt, the outer end of the connecting bolt is provided with a locking nut, and an auxiliary insulating plate is arranged between the locking nut and the hinge movable part.
4. The plasma electromagnetic shield door of claim 1, wherein: the soft insulating cover is fixed in an embedded groove formed in the door leaf and comprises an outer soft cover and a core block inside the outer soft cover, an inner cavity for containing the core block is formed in the outer soft cover, a first metal layer is arranged on the wall of the inner cavity, a second metal layer is arranged on the outer surface of the core block, a plurality of supporting blocks which are uniformly distributed are arranged outside the core block, the inner end and the outer end of each supporting block are correspondingly connected onto the second metal layer and the first metal layer, a cavity is formed between the first metal layer and the second metal layer, and the cavity is communicated with the shielding space through a conduction pipe.
5. The plasma electromagnetic shield door of claim 1, wherein: and the slot frame is provided with an air inlet and an air outlet, and the air inlet is connected with external air supply equipment.
6. The plasma electromagnetic shield door of claim 1, wherein: and an insulating auxiliary plate is arranged between the door leaf and the slotting tool frame.
7. The plasma electromagnetic shield door of claim 1, wherein: the groove frame is arranged on the inner wall of the door frame, the groove frame is provided with a connecting part extending to the rear side of the door frame, and the connecting part is welded with the door frame.
8. The plasma electromagnetic shield door of claim 1, wherein: the electrode A is connected with the anode end of an external power supply, the electrode B is connected with the cathode end of the external power supply, and the electrode B is connected to the door frame.
9. The plasma electromagnetic shield door of claim 3, wherein: the insulating sleeve and the insulating plate are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210360011.5A CN114809888B (en) | 2022-04-06 | 2022-04-06 | Plasma electromagnetic shielding door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210360011.5A CN114809888B (en) | 2022-04-06 | 2022-04-06 | Plasma electromagnetic shielding door |
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| CN114809888A true CN114809888A (en) | 2022-07-29 |
| CN114809888B CN114809888B (en) | 2023-08-29 |
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| CN202210360011.5A Active CN114809888B (en) | 2022-04-06 | 2022-04-06 | Plasma electromagnetic shielding door |
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| DE10314855A1 (en) * | 2003-04-02 | 2004-11-11 | Silberberg, Uwe, Dr.-Ing. | Radiation-protecting sliding gate arrangement, for screening linear accelerator bunker, has filling made from heavy concrete having composition of barite, hematite or magnetite |
| CN101642002A (en) * | 2007-02-12 | 2010-02-03 | 互曼迈迪泰克公司 | Door for vacuum chamber |
| CN208058491U (en) * | 2018-01-16 | 2018-11-06 | 东莞市天华光电科技有限公司 | A kind of phasmajector lamps and lanterns |
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| CN114809888B (en) | 2023-08-29 |
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