CN107949265B - Shielding room with automatic separating device - Google Patents
Shielding room with automatic separating device Download PDFInfo
- Publication number
- CN107949265B CN107949265B CN201711404635.8A CN201711404635A CN107949265B CN 107949265 B CN107949265 B CN 107949265B CN 201711404635 A CN201711404635 A CN 201711404635A CN 107949265 B CN107949265 B CN 107949265B
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- CN
- China
- Prior art keywords
- shielding
- separable
- fixed
- room
- shell
- 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.)
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Links
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000011358 absorbing material Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0001—Rooms or chambers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0001—Rooms or chambers
- H05K9/0003—Shielded walls, floors, ceilings, e.g. wallpaper, wall panel, electro-conductive plaster, concrete, cement, mortar
Abstract
The invention provides a shielding room with an automatic separating device, which comprises: a fixed shielding shell provided with an opening; the fixed shielding shell consists of a plurality of shielding plates; the separable shielding plate is used for closing the opening and forms a closed space with the fixed shielding shell; the detachable shielding plate is fixedly connected with the fixed shielding shell. When the detachable shielding plate is subjected to huge external forces such as violent impact or explosion, the detachable shielding plate can be automatically separated from the rest shielding plates, so that all or most of stress is concentrated on the detachable shielding plate, and secondary deformation caused by transmission to the nearby shielding plates is avoided; therefore, the stress can be effectively eliminated, the deformation area of the shielding room is reduced, the shielding room is protected, the reusability of the shielding room is improved, and the economic loss is reduced.
Description
Technical Field
The invention relates to a shielding room with an automatic separating device.
Background
In electromagnetic compatibility test, most of the existing shielding rooms are complete shielding bodies, the only place which can be temporarily opened is a shielding door, and the shielding door needs to be tightly closed during test; when the non-flammable and explosive product is tested in the closed space, the problems of damage to the shielding body and the like can not occur; however, if products with very high energy density (such as battery packs of electric vehicles, hydrogen fuel cell vehicles and the like) are placed in a shielding room and some product index tests (such as electromagnetic compatibility) are performed, the risks of explosion or violent impact exist; in the test process, the shielding door of the shielding room must be tightly closed to isolate electromagnetic waves inside and outside the darkroom, and once explosion occurs in the closed space, the walls of the whole shielding room can be seriously deformed or even collapse; the wall repair cost is very high, and even the shielding room is to be rebuilt because the wall cannot be repaired.
After the existing integral shielding room is exploded or impacted violently, the local wall body is deformed due to huge external force; however, the whole wall surface is formed by rigidly connecting one or more steel plates, so that the stress cannot be effectively removed and is continuously conducted to the adjacent shielding blocks, the wall body is deformed in a chained mode, the deformation area is increased, and the repair cost is greatly increased.
Therefore, how to provide a shielding room with a separated wall body becomes a problem to be solved in the industry.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a shielding room with an automatic separation device, which is provided with a separation type wall body.
In order to achieve the above object, the present invention provides a shielding room with an automatic separating device, the shielding room comprising:
a fixed shielding shell provided with an opening; the fixed shielding shell consists of a plurality of shielding plates;
the separable shielding plate is used for closing the opening, and a closed space is formed by the separable shielding plate and the fixed shielding shell; the detachable shielding plate is fixedly connected with the fixed shielding shell.
In the invention, the shielding room can be a common shielding room or an anechoic chamber.
In the invention, the inner sides of the fixed shielding shell and the separable shielding plate are both provided with wave absorbing materials; the wave absorbing material may not be provided.
In the invention, the wave absorbing material is ferrite material.
In the invention, the finger-shaped spring card is arranged between the separable shielding plate and the fixed shielding shell, is favorable for sealing the closed space and shields the external electromagnetic radiation interference.
In the invention, the position of the opening is the place with the largest impact force when the sample to be tested in the closed space explodes; the separable shielding plate is rapidly separated from the fixed shielding shell under the action of impact force and moves outwards from the opening; the impact on the fixed shielding shell is reduced, large-area continuous deformation can not occur, and the deformation quantity is very small and even can be ignored.
When the detachable shielding plate is subjected to huge external forces such as violent impact or explosion, the detachable shielding plate can be automatically and quickly separated from the rest shielding plates, so that all or most of stress is concentrated on the detachable shielding plate, and secondary deformation caused by transmission to the nearby shielding plate is avoided; therefore, the stress can be effectively eliminated, the deformation area of the shielding room is reduced, the shielding room is protected, the reusability of the shielding room is improved, and the economic loss is reduced.
According to another embodiment of the invention, the shielding room further comprises a buffer mechanism, which is located outside the detachable shielding plate; the buffer mechanism comprises a supporting rod and a guide rail.
According to another embodiment of the invention, the guide rail is provided with a slider.
According to another embodiment of the invention, the lower end of the supporting rod is fixedly connected with the sliding block.
According to another specific embodiment of the invention, the upper end of the supporting rod is fixedly connected with the detachable shielding plate; the support rod is obliquely arranged.
According to another embodiment of the invention, the number of support rods is two; two support rods are parallel to each other
According to another embodiment of the invention, the guide rail is arranged corresponding to the support bar; the two guide rails are parallel to each other. According to the actual field condition, the sliding rail can be two parallel horizontal straight lines, oblique lines or curves with certain amplitude.
According to another embodiment of the invention, the detachable shield plate is connected to the fixed shield shell by means of a number of connection pieces.
In the scheme, the connecting pieces are conductive metal adhesive tapes which are distributed around the separable shielding plate and are positioned outside the separable shielding plate; the detachable shielding plate is sealed and pressed on the fixed shielding shell by the conductive metal adhesive tape, so that a good shielding effect can be realized.
The connecting piece can also be a finger spring card which is fixed on the fixed shielding shell; the connection of the fixed shield shell and the separable shield plate can be realized by embedding the finger spring card.
In the scheme, when explosion occurs in the closed space, the separable shielding plate is separated from the fixed shielding shell under the action of impact force and moves outwards from the opening; the separable shielding plate moves on the guide rail, and meanwhile, the sliding block is pushed to move on the slide rail through the support rod; the generated friction force can slow down the movement of the separable shielding plate, and plays a role of buffering. According to the actual field condition, the sliding rail can be two parallel horizontal straight lines, oblique lines or curves with certain amplitude.
According to another embodiment of the invention, the detachable shielding plate is fixedly connected with the fixed shielding shell through a plurality of connecting pieces; the connecting pieces are uniformly distributed in a ring shape; a through hole is formed between two adjacent connecting sheets in a surrounding mode; the shape of the through hole is round or square; a series of discrete through holes can ensure the shielding effect during testing.
In this scheme, when explosion takes place in the airtight space, separable shield receives the impact force, separates (the connection piece fracture) with fixed shield shell, outwards flies out from the opening.
According to another embodiment of the invention, the detachable shielding plate is connected with the fixed shielding shell through a plurality of magnets; the outer side of the separable shielding plate is provided with a tension mechanism; the bracing piece is connected one end of pulling force mechanism, and the wall is connected to pulling force mechanism other end.
In the scheme, the tension mechanism is a tension spring, the support rod is connected with one end of the tension spring, and the other end of the tension spring is connected with a wall; the magnet is used for balancing the tension of the tension spring; when explosion occurs in the closed space, the magnet is separated from contact with the detachable shielding plate or the fixed shielding shell under the action of impact force; the separable shielding plate is pulled out rapidly under the action of tension force of the tension spring and separated from the fixed shielding shell; the purpose of quick separation can be achieved by arranging the tension spring.
The pulling mechanism can also be a cylinder.
Compared with the prior art, the invention has the following beneficial effects:
when the detachable shielding plate is subjected to huge external forces such as violent impact or explosion, the detachable shielding plate can be automatically separated from the rest shielding plates, so that all or most of stress is concentrated on the detachable shielding plate, and secondary deformation caused by transmission to the nearby shielding plates is avoided; therefore, the stress can be effectively eliminated, the deformation area of the shielding room is reduced, the shielding room is protected, the reusability of the shielding room is improved, and the economic loss is reduced.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a front view of a shielding room of embodiment 1;
FIG. 2 is a right side view of the shielding room of example 1;
FIG. 3 is a front view of the shielding room of example 6;
FIG. 4 is a right side view of the shielding room of example 6;
fig. 5 is a right side view of the shielding room of example 7.
Detailed Description
Example 1
The present embodiment provides a shielding room with an automatic separating device, as shown in fig. 1-2, which includes a fixed shielding shell 1, a separable shielding plate 2, and a buffer mechanism 3.
Wherein, the fixed shielding shell 1 is provided with an opening 101; the fixed shield shell 1 is composed of a plurality of shield plates (not shown).
The separable shielding plate 2 is used for closing the opening 101, and forms a closed space with the fixed shielding shell 1; the separable shielding plate 2 is fixedly connected with the fixed shielding shell 1; wave absorbing materials are arranged on the inner sides of the fixed shielding shell 1 and the separable shielding plate 2; the wave absorbing material is ferrite material; the separable shielding plate 2 is connected with the fixed shielding shell 1 through a plurality of connecting pieces; the connecting piece is a finger spring card 201 which is fixed on the fixed shielding shell 1; by embedding the finger spring card 201, connection of the fixed shield shell 1 and the separable shield plate 2 can be achieved; at this time, the finger spring card 201 is located between the detachable shield plate 2 and the fixed shield shell 1.
A finger-shaped spring clamping groove is fixedly arranged at the connecting position of the fixed shielding shell 1 and the separable shielding plate 2; the edge of the separable shielding plate 2 is provided with folded edges, and the four folded edges are pressed by finger-shaped spring clamping grooves.
The buffer mechanism 3 is positioned outside the detachable shielding plate 2 and comprises a supporting rod 301 and a guide rail 302; the guide rail 302 is provided with a sliding block 303; the lower end of the supporting rod 301 is fixedly connected with the sliding block 303; the upper end of the supporting rod 301 is fixedly connected with the detachable shielding plate 2; the support rods 301 are placed obliquely; the number of the support rods 301 is two; the two support rods 301 are parallel to each other; the guide rail 302 is provided corresponding to the support rod 301; the two guide rails 302 are parallel to each other; the rail 302 is circular in cross-section.
Example 2
This embodiment differs from embodiment 1 in that: no buffer mechanism is provided; the separable shielding plate is fixedly connected with the fixed shielding shell through a plurality of connecting pieces; the connecting pieces are uniformly distributed in a ring shape; a through hole is formed between two adjacent connecting sheets in a surrounding mode; the shape of the through hole is round; in order to improve shielding effectiveness, conductive paint is sprayed at all through holes, or all through holes are covered by conductive adhesive tapes which are easy to tear.
Example 3
This embodiment differs from embodiment 1 in that: the connecting pieces are conductive metal adhesive tapes which are distributed around the separable shielding plate and are positioned outside the separable shielding plate; the conductive metal tape seals and presses the separable shield plate against the fixed shield shell.
Example 4
This embodiment differs from embodiment 1 in that: the inner sides of the fixed shielding shell and the separable shielding plate are not provided with wave absorbing materials.
Example 5
This embodiment differs from embodiment 1 in that: the cross section of the guide rail is I-shaped.
Example 6
As shown in fig. 3 and 4, this embodiment differs from embodiment 1 in that: the detachable shield plate 62 is connected with the fixed shield shell 61 through a plurality of magnets 601; the support bar 6301 is connected to one end of the tension spring 602, and the other end of the tension spring 602 is connected to a wall.
Example 7
As shown in fig. 5, this embodiment differs from embodiment 6 in that: no magnet; the detachable shield plate 72 is connected to the fixed shield shell 71 by a finger spring card 7201; the supporting rod 7301 is connected with one end of the tension spring 701, and the other end of the tension spring 701 is connected with a wall; the separable shielding plate 72 is connected with one end of a nonmetal rope 702 in the closed space, and the nonmetal rope 702 passes through a wood peg 703 with holes; the other end of the nonmetallic rope 702 is connected with an inflatable airbag 704.
The peg 703 is fixedly installed in the closed space, and functions to install the air bag 704 to balance the tension of the tension spring 701.
The inflatable air bag 704 is always in an air state at ordinary times, and the inflatable air bag 704 has tension on the nonmetallic ropes 702; when explosion or violent impact occurs in the closed space, the inflatable airbag 704 is instantaneously exploded under the action of impact force; the tension of the external tension spring 701 separates the separable shielding plate 72 from the fixed shielding shell 71, the nonmetal ropes 702 lose the tension of the air bags, and the wood bolts 703 passing through the holes move together with the separable shielding plate 72; the purpose of instant separation is achieved.
While the invention has been described in terms of preferred embodiments, it is not intended to limit the scope of the invention. It is intended that all modifications within the scope of the invention, i.e., all equivalents thereof, be embraced by the invention as they come within their scope without departing from the invention.
Claims (6)
1. A shielding room with an automatic separation device, wherein the shielding room comprises:
the device comprises a fixed shielding shell, a shielding cover and a shielding cover, wherein an opening is formed in the fixed shielding shell; the fixed shielding shell consists of a plurality of shielding plates;
the separable shielding plate is used for sealing the opening, and a closed space is formed by the separable shielding plate and the fixed shielding shell; the separable shielding plate is fixedly connected with the fixed shielding shell;
the shielding room further comprises a buffer mechanism, wherein the buffer mechanism is positioned outside the separable shielding plate; the buffer mechanism comprises a support rod and a guide rail, wherein a sliding block is arranged on the guide rail, the lower end of the support rod is fixedly connected with the sliding block, the upper end of the support rod is fixedly connected with the separable shielding plate, and the separable shielding plate is separated from the fixed shielding shell under the action of impact force and moves outwards from the opening; the separable shielding plate moves on the guide rail, and meanwhile, the sliding block is pushed to move on the slide rail through the supporting rod.
2. The shielding room of claim 1 wherein the number of support poles is two.
3. The shielding room of claim 2, wherein the guide rail is provided corresponding to the support bar.
4. A shielding room as claimed in claim 3, wherein the detachable shield plate is connected to the fixed shield shell by means of a number of connectors.
5. The shielding room of claim 1 wherein the separable shielding plate is fixedly connected to the fixed shielding shell by a plurality of connection pieces; the connecting pieces are uniformly distributed in an annular shape; and a through hole is formed between two adjacent connecting sheets in a surrounding mode.
6. The shielding room of claim 3, wherein the separable shielding plate is connected to the fixed shielding case by a plurality of magnets; a tension mechanism is arranged on the outer side of the separable shielding plate; the support rod is connected with one end of the tension mechanism, and the other end of the tension mechanism is connected with a wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404635.8A CN107949265B (en) | 2017-12-22 | 2017-12-22 | Shielding room with automatic separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404635.8A CN107949265B (en) | 2017-12-22 | 2017-12-22 | Shielding room with automatic separating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107949265A CN107949265A (en) | 2018-04-20 |
| CN107949265B true CN107949265B (en) | 2023-12-15 |
Family
ID=61941761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711404635.8A Active CN107949265B (en) | 2017-12-22 | 2017-12-22 | Shielding room with automatic separating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107949265B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02113393U (en) * | 1989-02-28 | 1990-09-11 | ||
| JP2001007584A (en) * | 2000-01-01 | 2001-01-12 | Hisashi Kado | Magnetic shielding room and its assembly method |
| JP2003124678A (en) * | 2001-10-12 | 2003-04-25 | Oki Electric Ind Co Ltd | Shielding structure for housing |
| JP2004244963A (en) * | 2003-02-14 | 2004-09-02 | Tokimec Inc | Sliding door device having electromagnetic shielding function |
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| JP2009010117A (en) * | 2007-06-27 | 2009-01-15 | Fujitsu Ltd | Shielding structure for electronic equipment |
| JP2011171496A (en) * | 2010-02-18 | 2011-09-01 | Mitsubishi Electric Corp | Electromagnetic force opening and closing type electromagnetic shield door system |
| CN202135443U (en) * | 2011-06-03 | 2012-02-01 | 番禺得意精密电子工业有限公司 | Shield assembly |
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| KR20170113779A (en) * | 2016-03-25 | 2017-10-13 | 주식회사 이레테크 | Electromagnetic-Pulse Shield Room |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020121386A1 (en) * | 2001-03-01 | 2002-09-05 | Hoffman Enclosures, Inc. | Ventilated enclosure apparatus |
| US7046521B2 (en) * | 2002-03-13 | 2006-05-16 | Garmong Victor H | Enclosure with shielded power compartment and methods of shielding enclosures |
| CA2906560C (en) * | 2013-03-14 | 2021-04-20 | Emprimus, Llc | Electromagnetically protected electronic enclosure |
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2017
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|---|---|---|---|---|
| JPH02113393U (en) * | 1989-02-28 | 1990-09-11 | ||
| JP2001007584A (en) * | 2000-01-01 | 2001-01-12 | Hisashi Kado | Magnetic shielding room and its assembly method |
| JP2003124678A (en) * | 2001-10-12 | 2003-04-25 | Oki Electric Ind Co Ltd | Shielding structure for housing |
| JP2004244963A (en) * | 2003-02-14 | 2004-09-02 | Tokimec Inc | Sliding door device having electromagnetic shielding function |
| DE102004003159B3 (en) * | 2004-01-21 | 2005-05-25 | Siemens Ag | Device for shielding electronic units in carrier unit against electromagnetic radiation has mutually separate shielding for front panel and circuit board of electronic unit |
| JP2009010117A (en) * | 2007-06-27 | 2009-01-15 | Fujitsu Ltd | Shielding structure for electronic equipment |
| JP2011171496A (en) * | 2010-02-18 | 2011-09-01 | Mitsubishi Electric Corp | Electromagnetic force opening and closing type electromagnetic shield door system |
| CN202135443U (en) * | 2011-06-03 | 2012-02-01 | 番禺得意精密电子工业有限公司 | Shield assembly |
| CN105298286A (en) * | 2015-11-12 | 2016-02-03 | 广州新科佳都科技有限公司 | Door-motor system of shielding door |
| KR20170113779A (en) * | 2016-03-25 | 2017-10-13 | 주식회사 이레테크 | Electromagnetic-Pulse Shield Room |
| CN106714535A (en) * | 2016-11-29 | 2017-05-24 | 大连港森立达木材交易中心有限公司 | High shielding large-scale shielding cabin |
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| Publication number | Publication date |
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| CN107949265A (en) | 2018-04-20 |
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