CN114080125A - Electromagnetic shielding strip for machine cabinet - Google Patents
Electromagnetic shielding strip for machine cabinet Download PDFInfo
- Publication number
- CN114080125A CN114080125A CN202010838045.1A CN202010838045A CN114080125A CN 114080125 A CN114080125 A CN 114080125A CN 202010838045 A CN202010838045 A CN 202010838045A CN 114080125 A CN114080125 A CN 114080125A
- Authority
- CN
- China
- Prior art keywords
- conductive
- electromagnetic shielding
- strip
- elastic sealing
- rubber strip
- 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
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000004744 fabric Substances 0.000 claims abstract description 25
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 239000003292 glue Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 239000000806 elastomer Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
-
- 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
-
- 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
- H05K9/0007—Casings
- H05K9/0015—Gaskets or seals
-
- 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
- H05K9/0007—Casings
- H05K9/0015—Gaskets or seals
- H05K9/0016—Gaskets or seals having a spring contact
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to an electromagnetic shielding strip for a machine cabinet, which comprises a main body and two elastic sealing pieces respectively arranged at two sides of the main body, wherein the main body comprises a conductive rubber strip and a conductive back adhesive used for fixing the conductive rubber strip to a stand column of a machine cabinet frame, the conductive back adhesive is arranged on the inner side surface of the conductive rubber strip, the conductive rubber strip is covered with conductive cloth except for a portion provided with the conductive back adhesive and a portion connected with the elastic sealing pieces, the elastic sealing pieces comprise an elastic body and conductive cloth outside the elastic body, the conductive cloth on the conductive rubber strip is conducted with the conductive cloth on the elastic body, and after the electromagnetic shielding strip is fixed on the stand column of the machine cabinet frame, the two elastic sealing pieces are respectively contacted and sealed with a front/back plate and a left/right side plate of the machine cabinet. Compared with the prior art, the invention assembles the conductive rubber strip, the conductive back glue and the conductive cloth into a whole, improves the efficiency of installation and fixation, and can improve the electromagnetic shielding effect by combining the elastic sealing element and the conductive cloth on the outer surface of the elastic sealing element.
Description
Technical Field
The invention relates to the field of railway communication, in particular to an electromagnetic shielding strip for a cabinet.
Background
The production cabinet in the railway signal field generally adopts an electromagnetic shielding cabinet to store control equipment such as signals, communication and the like, and can provide protection for the storage equipment and interference of electromagnetic shielding. The equipment is orderly and orderly arranged, and the equipment maintenance is convenient. In the prior art, for meeting the use requirement, the cabinet with a frame type structure adopts an aluminum-coated zinc plate to stick a rectangular electromagnetic shielding strip to ensure that the cabinet is conducted with a frame to achieve a shielding effect. This approach has the following disadvantages: 1. the cabinet is adhered with the front door, the rear door, the side door plate and the top and the bottom of the cabinet by using the rectangular electromagnetic shielding strips, so that the cost of the cabinet is increased; 2. the shielding strip is pasted on the door plate, and the periphery is coated or pasted with a circle of electromagnetic shielding material, so that the operation process is complex, and time and labor are wasted.
Disclosure of Invention
The invention aims to provide an electromagnetic shielding strip for a cabinet, which is characterized in that a conductive rubber strip, a conductive back glue and a conductive cloth are assembled into a whole, so that the mounting and fixing efficiency is improved, and the electromagnetic shielding effect can be improved by combining an elastic sealing piece and the conductive cloth on the outer surface of the elastic sealing piece.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an electromagnetic shielding strip for rack, includes the main part and locates two elastic sealing spare of main part both sides respectively, the main part includes the conductive rubber strip and is used for fixing the conductive gum to rack frame stand with the conductive rubber strip, the inboard surface that the conductive rubber strip was located to the conductive gum is on, and the conductive rubber strip has the conductive cloth except the part that sets up conductive gum and part and connect elastic sealing spare, the rest part covers, elastic sealing spare includes the conductive cloth in the elastomer and the elastomer outside, and the conductive cloth on the conductive rubber strip and the conductive cloth on the elastomer switch on, the electromagnetic shielding strip is fixed in rack frame stand and goes up the back, and two elastic sealing spare contact and seal with the preceding/back plate and the left/right side board of rack respectively.
Furthermore, the conductive back adhesive is completely attached to the mounting surface.
Furthermore, elastic sealing element locates on the outside surface of conductive rubber strip, and is equipped with the cavity body between elastic sealing element and the main part.
Furthermore, the cavity body is a semicircular cavity body.
Furthermore, two sides of the electric rubber strip are in a hook shape, and the concave part faces the inner side surface direction of the conductive rubber strip.
Further, the contact surface of the elastic sealing element and the front/rear plate or the left/right side plate of the cabinet is arc-shaped.
Furthermore, the conductive rubber strip is internally provided with a reinforcing rib.
Furthermore, the two reinforcing ribs are symmetrically arranged on two sides in the conductive rubber strip.
Still further, the cross section of the reinforcing rib is polygonal.
Further, the elastomer is foam cotton.
Compared with the prior art, the invention has the following beneficial effects:
1. the conductive rubber strip, the conductive back glue and the conductive cloth are assembled into a whole, so that the mounting and fixing efficiency is improved, and the electromagnetic shielding effect can be improved by combining the elastic sealing piece and the conductive cloth on the outer surface of the elastic sealing piece.
2. The conductive back adhesive is completely attached to the installation surface and the cabinet section bar in a large area, so that the electromagnetic shielding effect is improved.
3. The both sides of conductive rubber strip are hook-like, and elastic sealing element's contact surface is the arc, and elastic sealing element locates on conductive rubber strip's the outside surface, and is equipped with the cavity body between elastic sealing element and the main part, improves area of contact to improve electromagnetic shield effect.
4. The cross section of the reinforcing rib is polygonal, so that relative rotation is not easy to occur, and the reinforcing rib is not easy to fall off.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of an application state of the present invention;
wherein: 1. the conductive rubber strip comprises a conductive rubber strip 2, conductive cloth 3, a conductive back adhesive 4, a first contact surface 5, a first convex circular surface 6 and a second convex circular surface; 7. elastomer, 8, reinforcing rib, 9, cavity body, 10, electromagnetic shielding strip, 11, stand, 12, curb plate, 13, preceding/back plate.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model provides an electromagnetic shielding strip for rack, as shown in fig. 1 and fig. 2, include the main part and locate two elastic sealing spare of main part both sides respectively, the main part includes conductive rubber strip 1 and is used for fixing conductive rubber strip 1 to the electrically conductive gum 3 on the rack frame stand, conductive gum 3 locates on the inboard surface of conductive rubber strip 1, and conductive rubber strip 1 except setting up conductive gum 3 and part and the part of connecting elastic sealing spare, other parts cover has electrically conductive cloth 2, conductive gum 3 constitutes the first contact surface 4 of electromagnetic shielding strip. The elastic sealing elements comprise elastic bodies 7 and conductive cloth 2 on the outer sides of the elastic bodies 7, the conductive cloth 2 on the conductive rubber strips 1 is conducted with the conductive cloth 2 on the elastic bodies 7, and after the electromagnetic shielding strips are fixed on the stand columns of the rack frame, the two elastic sealing elements are respectively contacted and sealed with the front/rear plate 13 and the left/right side plate 12 of the rack. Wherein, the elastic body 7 is foam.
The conductive rubber strip, the conductive back glue and the conductive cloth are assembled into a whole, so that the mounting and fixing efficiency is improved, and the electromagnetic shielding effect can be improved by combining the elastic sealing piece and the conductive cloth on the outer surface of the elastic sealing piece.
The conductive back adhesive 3 is completely attached to the installation surface and completely attached to the stand column 11 of the cabinet in a large area, so that the electromagnetic shielding effect is improved, wherein the stand column 11 is made of a section bar.
The elastic sealing element is arranged on the outer side surface of the conductive rubber strip 1, and a cavity body 9 is arranged between the elastic sealing element and the main body. The cavity 9 is a semicircular cavity 9. The two sides of the electric rubber strip 1 are hook-shaped, and the concave part faces to the inner side surface direction of the electric rubber strip 1. The elastic sealing element is arc-shaped with the contact surface of the front/back plate 13 or the left/right side plate 12 of the cabinet, and is used for tightening the side plate or the front/back plate to improve the contact area, thereby improving the electromagnetic shielding effect and additionally improving the sealing effect. The surfaces of the two resilient sealing members form a first convex circular surface 5 and a second convex circular surface 6, respectively.
The conductive rubber strip 1 is internally provided with a reinforcing rib 8. The two reinforcing ribs 8 are symmetrically arranged on two sides in the conductive rubber strip 1. The cross section of the reinforcing rib 8 is polygonal, but not conventional circular, and relative rotation is not easy to occur, so that the reinforcing rib is not easy to fall off.
The first contact surface 4 of the electromagnetic shielding strip 10 is completely attached to the cabinet section in a large area, the electromagnetic shielding strip 10 is combined into a whole through the conductive back adhesive 3, and the electromagnetic shielding strip 10 can be integrally installed on a cabinet frame through one-time adhesion, so that the working efficiency is greatly improved, and the assembly cost is reduced; a semi-circular cavity is formed inside the first convex circular surface 5 and is used for tightening the side door plate, so that the contact area between the shielding strip and the side plate is increased, and the shielding efficiency of the cabinet is effectively improved; the inside semicircle cavity that constitutes of second convex circular surface 6 for the design is tightened up to front and back door plant, makes electromagnetic shield strip and front and back board area of contact increase, guarantees that the shielding effectiveness of rack obtains effectively promoting.
Claims (10)
1. An electromagnetic shielding strip for a machine cabinet is characterized by comprising a main body and two elastic sealing pieces respectively arranged at two sides of the main body, the main body comprises a conductive rubber strip (1) and a conductive back adhesive (3) used for fixing the conductive rubber strip (1) on a stand column of a cabinet frame, the conductive back glue (3) is arranged on the inner side surface of the conductive rubber strip (1), besides the conductive back glue (3), part of the conductive rubber strip (1) and the part connected with the elastic sealing element, the other part is covered with the conductive cloth (2), the elastic sealing element comprises an elastic body (7) and the conductive cloth (2) at the outer side of the elastic body (7), and the conductive cloth (2) on the conductive rubber strip (1) is conducted with the conductive cloth (2) on the elastic body (7), and after the electromagnetic shielding strip is fixed on the stand column of the cabinet frame, the two elastic sealing pieces are respectively contacted and sealed with the front/rear plate and the left/right side plate of the cabinet.
2. Electromagnetic shielding strip for cabinets according to claim 1, characterized in that said conductive adhesive backing (3) is completely conformed to the installation surface.
3. Electromagnetic shielding strip for machine cabinets according to claim 1, characterized in that said elastic sealing is provided on the outer side surface of the conductive rubber strip (1), and a cavity (9) is provided between the elastic sealing and the main body.
4. Electromagnetic shielding strip for cabinets according to claim 3, characterized in that said hollow cavity (9) is a semicircular hollow cavity (9).
5. Electromagnetic shielding strip for cabinets according to claim 1, characterized in that the two sides of the said strip (1) are hook-shaped and the recess is towards the inner surface of the strip (1).
6. The electromagnetic shielding strip for machine cabinet as claimed in claim 1, wherein the contact surface of said elastic sealing member with the front/rear panel or the left/right side panel of the machine cabinet is arc-shaped.
7. Electromagnetic shielding strip for cabinets according to claim 1, characterized in that reinforcing ribs (8) are provided in said conductive rubber strip (1).
8. The electromagnetic shielding strip for the machine cabinet as claimed in claim 7, wherein two reinforcing ribs (8) are arranged symmetrically on two sides in the conductive rubber strip (1).
9. Electromagnetic shielding strip for cabinets according to claim 8, characterized in that said reinforcing ribs (8) have a polygonal cross-section.
10. Electromagnetic shielding strip for cabinets according to claim 1, characterized in that said elastomer (7) is a foam.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838045.1A CN114080125A (en) | 2020-08-19 | 2020-08-19 | Electromagnetic shielding strip for machine cabinet |
| PCT/CN2021/100260 WO2022037214A1 (en) | 2020-08-19 | 2021-06-16 | Electromagnetic shielding tape for cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838045.1A CN114080125A (en) | 2020-08-19 | 2020-08-19 | Electromagnetic shielding strip for machine cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114080125A true CN114080125A (en) | 2022-02-22 |
Family
ID=80281635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010838045.1A Pending CN114080125A (en) | 2020-08-19 | 2020-08-19 | Electromagnetic shielding strip for machine cabinet |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114080125A (en) |
| WO (1) | WO2022037214A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055818A (en) * | 2017-10-27 | 2018-05-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Anti- galvanic corrosion is electromagnetically shielded seal trim strip |
| CN110510129A (en) * | 2019-08-02 | 2019-11-29 | 西安飞机工业（集团）有限责任公司 | A kind of the conductive seal method and conductive seal band of airplane hatch cover |
| CN111065253A (en) * | 2019-12-25 | 2020-04-24 | 浙江世泰实业有限公司 | Conductive electromagnetic shielding sealing rubber strip |
| CN212436114U (en) * | 2020-08-19 | 2021-01-29 | 上海铁路通信有限公司 | Electromagnetic shielding strip for machine cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101296379B1 (en) * | 2011-12-26 | 2013-08-14 | (주)에이엔티 | A cabinet with waterproof and electromagnetic shielding function |
-
2020
- 2020-08-19 CN CN202010838045.1A patent/CN114080125A/en active Pending
-
2021
- 2021-06-16 WO PCT/CN2021/100260 patent/WO2022037214A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108055818A (en) * | 2017-10-27 | 2018-05-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Anti- galvanic corrosion is electromagnetically shielded seal trim strip |
| CN110510129A (en) * | 2019-08-02 | 2019-11-29 | 西安飞机工业（集团）有限责任公司 | A kind of the conductive seal method and conductive seal band of airplane hatch cover |
| CN111065253A (en) * | 2019-12-25 | 2020-04-24 | 浙江世泰实业有限公司 | Conductive electromagnetic shielding sealing rubber strip |
| CN212436114U (en) * | 2020-08-19 | 2021-01-29 | 上海铁路通信有限公司 | Electromagnetic shielding strip for machine cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022037214A1 (en) | 2022-02-24 |
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