CN111155911A - Low-frequency electromagnetic shielding door - Google Patents
Low-frequency electromagnetic shielding door Download PDFInfo
- Publication number
- CN111155911A CN111155911A CN201811325570.2A CN201811325570A CN111155911A CN 111155911 A CN111155911 A CN 111155911A CN 201811325570 A CN201811325570 A CN 201811325570A CN 111155911 A CN111155911 A CN 111155911A
- Authority
- CN
- China
- Prior art keywords
- door
- shielding
- door frame
- frequency electromagnetic
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
-
- 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
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/52—Frames specially adapted for doors
-
- 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
Abstract
The invention relates to a low-frequency electromagnetic shielding door, belonging to the technical field of electromagnetic shielding. The low-frequency electromagnetic shielding door comprises a door frame, a shielding door and a connecting mechanism, wherein the door frame is connected with the shielding door through a hinge mechanism, the hinge mechanism is arranged on the outer surfaces of the door frame and the shielding door, the door frame is in contact with the shielding door, the contact surface is Z-shaped, and at least one waveguide sheet and a magnetic conduction plate are arranged on the contact surface of the door frame and the shielding door.
Description
Technical Field
The invention relates to a low-frequency electromagnetic shielding door, belonging to the technical field of electromagnetic shielding.
Background
Electromagnetic shielding is an important component of electromagnetic compatibility technology and is the most effective means for suppressing radiation interference. When a cabinet, a shielding room, a communication shelter and a microwave dark room are built, a shielding door is a main path of electromagnetic leakage and is a main factor for determining the performance of the shielding room. Factors affecting the shielding effectiveness of the electromagnetic shielding door are: the material of the door section bar, the selection of the door section bar plating layer, the connection mode of the door frame and the shielding chamber, the door seam sealing gasket, the connection mode of the conductive gasket and the section bar and the layer number of the conductive gasket. Theories and practices prove that the shielding effectiveness of the gap between the door plate and the door frame of the shielding door is a key factor influencing the shielding effectiveness of the shielding door. The key of electromagnetic shielding is to ensure the conductive continuity of the shielding body, and the conductive continuity can be ensured by installing a continuous conductive gasket on the door seam. In order to reduce the leakage of the gap, the impedance of the gap should be reduced as much as possible, and beryllium copper finger-shaped waveguide sheets and magnetic conductive plate liners are usually adopted in engineering to fill the gap between the door frame and the door panel to improve the shielding effectiveness of the shielded door.
Due to the lack of the shielding design theory of the door, the shielding structure of the door is designed mainly according to experience in the past, and the ideal shielding effectiveness of the shielding gasket is taken as the final shielding effectiveness of the door, so that the influence of a plurality of structural factors such as the deformation state of the conductive gasket, the number of layers of the conductive gasket, the conductive state of the matching surface and the like on the shielding effectiveness can not be quantitatively introduced, the shielding effectiveness is far from the shielding effectiveness actually achieved, the design period is greatly prolonged, and the manufacturing cost is increased. According to the method, a shielding design model suitable for different types of shielding doors is established according to a hole seam coupling mechanism and a conductive gasket transfer impedance theory, simulation analysis is performed on factors such as gasket types and the number of layers, and the accuracy of the analysis is verified through test data. Therefore, preliminary electromagnetic compatibility analysis and prediction are provided for the construction of various electromagnetic shielding chambers, and the most reasonable design meeting the shielding requirements can be selected.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a low-frequency electromagnetic shielding door, which is used for solving the problems that no national standard exists in the field of low-frequency magnetic fields and low-frequency vibration in the prior art, only two electromagnetic shielding doors in the industry have no standard process, and the magnetic leakage at a door seam and a lock body is serious and cannot play a good shielding role.
To achieve the above and other related objects, the present invention provides a low frequency electromagnetic shield door, comprising: door frame, shield door and coupling mechanism, door frame and shield door between be connected through coupling mechanism, coupling mechanism include the door frame, the door frame is connected with the shield door through the hinge mechanism, the hinge mechanism sets up the surface at door frame and shield door, the door frame contacts with the shield door, the zigzag is personally submitted in the contact, is provided with at least one waveguide piece and magnetic conduction board on door frame and the shield door contact surface.
The shielding door is of a double-opening type.
The door frame is welded on the wall body through brazing.
Conductive rubber is paved between the gap between the door frame and the shielding door.
At least three groups of connecting mechanisms are arranged between the door frame and the shielding door.
The shielding door is made of low-carbon steel, and the surface of the shielding door is galvanized.
As described above, the low frequency electromagnetic shielding door of the present invention has the following beneficial effects:
the low-frequency electromagnetic shielding door is safe and reliable, has excellent shielding performance, is flexible to open, can be repeatedly disassembled and assembled for use, does not need special maintenance, has low manufacturing cost, reduces the production cost of products, and improves the performance and the high-efficiency use efficiency of the products.
Drawings
Fig. 1 is a schematic view of an overall structure of a low-frequency electromagnetic shielding door according to an embodiment of the invention.
Fig. 2 is a schematic view of a closed connection structure of the low-frequency electromagnetic shielding door according to the embodiment of the invention.
Fig. 3 is a schematic view of an opening connection structure of the low frequency electromagnetic shielding door according to an embodiment of the invention.
Wherein, 1, a connecting mechanism; 2. a door frame; 3. a shield door; 4. a wall body; 5. a conductive rubber; 6. a hinge mechanism; 7. a waveguide sheet; 8. a magnetic conduction plate.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1 and 2, the present invention provides a low frequency electromagnetic shielding door, which is characterized in that the low frequency electromagnetic shielding door comprises: door frame 2, shield door 3 and coupling mechanism 1, door frame 2 and shield door 3 between be connected through coupling mechanism 1, coupling mechanism 1 include door frame 2, door frame 2 is connected with shield door 3 through the hinge mechanism 6, the hinge mechanism 6 sets up the surface at door frame 2 and shield door 3, door frame 2 contacts with shield door 3, the zigzag is personally submitted in the contact, is provided with at least one waveguide piece 7 and magnetic conduction board 8 on door frame 2 and the shield door 3 contact surface. The application method of the low-frequency electromagnetic shielding door comprises the following steps: the method comprises the steps of welding a door frame 2 on a wall body 4 by brazing, wherein conductive rubber is laid between the shielding door 3 and the door frame 2, the shielding door 3 is made of low-carbon steel by brazing, an electric continuum is formed between the wall body 4 and the shielding door 3 and between the door frame 2, when the shielding door 3 is closed, the contact part between the door frame 2 and the shielding door 3 is closed, when electromagnetism passes through the shielding door 3, the shielding door 3 forms vortex due to induced potential, the magnetic field generated by the vortex is just opposite to the original magnetic field direction, the magnetic field generated by the vortex offsets the original magnetic field to play a shielding role, the gap between the door frame 2 and the shielding door 3 has little influence on low-frequency magnetic shielding due to the fact that the gap between the door frame 2 and the shielding door 3 is not obviously damaged by the disconnection of magnetic lines of force and the discontinuity of the vortex, and the waveguide sheet 7 and the magnetic conductive plate 8 arranged between the door frame 2 and the, thereby ensuring the electromagnetic shielding effect of the shield door 3. The shielding door 3 is of a double-open type. The door frame 2 is welded on the wall 4 through brazing. And a conductive rubber 5 is paved between the gap between the door frame 2 and the shielding door 3. At least three groups of connecting mechanisms 1 are arranged between the door frame 2 and the shielding door 3. The shielding door 3 is made of low-carbon steel and is galvanized on the surface.
In conclusion, the low-frequency electromagnetic shielding door is safe and reliable, excellent in shielding performance, flexible to open, capable of being repeatedly disassembled and assembled for use, free of special maintenance, low in manufacturing cost, capable of reducing the production cost of products and improving the performance and the efficient use efficiency of the products. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. Low frequency electromagnetic shield door, its characterized in that, low frequency electromagnetic shield door includes: door frame (2), shield door (3) and coupling mechanism (1), door frame (2) and shield door (3) between be connected through coupling mechanism (1), coupling mechanism (1) including door frame (2), door frame (2) are connected with shield door (3) through hinge mechanism (6), hinge mechanism (6) set up the surface at door frame (2) and shield door (3), door frame (2) contact with shield door (3), the contact surface is the zigzag, is provided with at least one waveguide piece (7) and magnetic conduction board (8) on door frame (2) and shield door (3) contact surface.
2. The low frequency electromagnetic shield door of claim 1, wherein: the shielding door (3) is of a double-open type.
3. The low frequency electromagnetic shield door of claim 1, wherein: the door frame (2) is welded on the wall body (4) through brazing.
4. The low frequency electromagnetic shield door of claim 1, wherein: conductive rubber (5) is laid between the gap between the door frame (2) and the shielding door (3).
5. The low frequency electromagnetic shield door of claim 1, wherein: at least three groups of connecting mechanisms (1) are arranged between the door frame (2) and the shielding door (3).
6. The low frequency electromagnetic shield door of claim 1, wherein: the shielding door (3) is made of low-carbon steel, and the surface of the shielding door is galvanized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325570.2A CN111155911A (en) | 2018-11-08 | 2018-11-08 | Low-frequency electromagnetic shielding door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811325570.2A CN111155911A (en) | 2018-11-08 | 2018-11-08 | Low-frequency electromagnetic shielding door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111155911A true CN111155911A (en) | 2020-05-15 |
Family
ID=70555485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811325570.2A Pending CN111155911A (en) | 2018-11-08 | 2018-11-08 | Low-frequency electromagnetic shielding door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111155911A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI63992C (en) * | 1982-05-28 | 1983-09-12 | Euramecano Ab Oy | DOORR I EN KONSTRUKTION SOM FOERHINDRAR OEVERGAONG AV STOERNINGSFAELT |
| EP0265676A1 (en) * | 1986-10-25 | 1988-05-04 | Dornier Gmbh | HF-seal for doors |
| EP0269206A1 (en) * | 1986-08-30 | 1988-06-01 | The Marconi Company Limited | A door seal for excluding electromagnetic interference |
| CN2703854Y (en) * | 2004-04-20 | 2005-06-08 | 戴三南 | Aluminium electromagnetic shielded door |
| CN101413374A (en) * | 2008-11-10 | 2009-04-22 | 江苏苏净科技有限公司 | Door of cleaning room with electromagnetic shielding function |
| CN201616978U (en) * | 2009-12-18 | 2010-10-27 | 镇江船舶电器有限责任公司 | Electromagnetic shield door structure of electric cabinet |
| CN202417243U (en) * | 2012-01-20 | 2012-09-05 | 辽宁陆平机器股份有限公司 | Cabin body of electronic shielding square cabin |
| CN103850601A (en) * | 2014-03-26 | 2014-06-11 | 北京永诚通科技有限公司 | Electromagnetic shielding door |
| CN203905757U (en) * | 2014-05-23 | 2014-10-29 | 湖南康宁达医疗设备有限公司 | Electromagnetic-shielding door window structure |
| CN203978213U (en) * | 2014-07-31 | 2014-12-03 | 刘銮飞 | A kind of electromagnetic shield door reed and shield door |
-
2018
- 2018-11-08 CN CN201811325570.2A patent/CN111155911A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI63992C (en) * | 1982-05-28 | 1983-09-12 | Euramecano Ab Oy | DOORR I EN KONSTRUKTION SOM FOERHINDRAR OEVERGAONG AV STOERNINGSFAELT |
| EP0269206A1 (en) * | 1986-08-30 | 1988-06-01 | The Marconi Company Limited | A door seal for excluding electromagnetic interference |
| EP0265676A1 (en) * | 1986-10-25 | 1988-05-04 | Dornier Gmbh | HF-seal for doors |
| CN2703854Y (en) * | 2004-04-20 | 2005-06-08 | 戴三南 | Aluminium electromagnetic shielded door |
| CN101413374A (en) * | 2008-11-10 | 2009-04-22 | 江苏苏净科技有限公司 | Door of cleaning room with electromagnetic shielding function |
| CN201616978U (en) * | 2009-12-18 | 2010-10-27 | 镇江船舶电器有限责任公司 | Electromagnetic shield door structure of electric cabinet |
| CN202417243U (en) * | 2012-01-20 | 2012-09-05 | 辽宁陆平机器股份有限公司 | Cabin body of electronic shielding square cabin |
| CN103850601A (en) * | 2014-03-26 | 2014-06-11 | 北京永诚通科技有限公司 | Electromagnetic shielding door |
| CN103850601B (en) * | 2014-03-26 | 2016-02-03 | 北京永诚通科技有限公司 | A kind of electromagnetic shield door |
| CN203905757U (en) * | 2014-05-23 | 2014-10-29 | 湖南康宁达医疗设备有限公司 | Electromagnetic-shielding door window structure |
| CN203978213U (en) * | 2014-07-31 | 2014-12-03 | 刘銮飞 | A kind of electromagnetic shield door reed and shield door |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200515 |