CN111065253A - Conductive electromagnetic shielding sealing rubber strip - Google Patents
Conductive electromagnetic shielding sealing rubber strip Download PDFInfo
- Publication number
- CN111065253A CN111065253A CN201911354923.6A CN201911354923A CN111065253A CN 111065253 A CN111065253 A CN 111065253A CN 201911354923 A CN201911354923 A CN 201911354923A CN 111065253 A CN111065253 A CN 111065253A
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- conductive
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- electromagnetic shielding
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- adhesive tape
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- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to the technical field of sealing rubber strips, and discloses a conductive electromagnetic shielding sealing rubber strip which comprises a rubber tube (3), wherein first conductive rubber (2) and first conductive fabric (1) are sequentially arranged on the rubber tube (3), a groove (31) is formed in the rubber tube (3), a first double-sided adhesive tape (4), a first metal sheet (5) and a second double-sided adhesive tape (6) are arranged in the groove (31), the first metal sheet (5) is bonded with the rubber tube (3) through the first double-sided adhesive tape (4), one side of the second double-sided adhesive tape (6) is bonded with the first metal sheet (5), and the other side of the second double-sided adhesive tape is bonded with a first metal surface (11); the first conductive fabric (1) is integrally vulcanized with the first conductive rubber (2) and the rubber tube (3). The sealing rubber strip has good mechanical property, can realize electromagnetic shielding and has a rainproof sealing function.
Description
Technical Field
The invention relates to the technical field of sealing rubber strips, in particular to a conductive electromagnetic shielding sealing rubber strip.
Background
The electromagnetic shielding can cut off the transmission of electromagnetic waves, and is a technical means for effectively eliminating the interference of the electromagnetic waves. In some special-purpose devices, electromagnetic shielding is required to protect the devices from electromagnetic signals and to protect the devices from normal operation. And gaps between openings of the device, such as doors, frames, etc., are important parts to prevent electromagnetic wave leakage.
The conductive electromagnetic shielding sealing rubber strip is arranged in a gap of the equipment, and a gap is formed between the first metal surface and the second metal surface on the equipment. The first metal surface is a metal surface of a frame needing to be sealed on the equipment, and the second metal surface is a metal surface of a door needing to be sealed on the equipment.
Disclosure of Invention
Aiming at the defects that the electromagnetic shielding sealing rubber strip in the prior art is poor in mechanical property and cannot be used for gaps and the like, the invention provides the conductive electromagnetic shielding sealing rubber strip which is good in mechanical property, can shield electromagnetism and has a sealing effect of rain prevention.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the conductive electromagnetic shielding sealing rubber strip comprises a rubber tube, wherein a first conductive rubber and a first conductive fabric are sequentially arranged on the rubber tube, a groove is formed in the rubber tube, a first double-sided adhesive tape, a first metal sheet and a second double-sided adhesive tape are arranged in the groove, the first metal sheet is bonded with the rubber tube through the first double-sided adhesive tape, and one side of the second double-sided adhesive tape is bonded with the first metal sheet.
Preferably, the first conductive fabric, the first conductive rubber and the rubber tube are integrally vulcanized, so that the mechanical performance of the conductive electromagnetic shielding sealing rubber strip can be improved, the service life of the conductive electromagnetic shielding sealing rubber strip is prolonged, and the first conductive fabric has friction resistance as the surface.
Preferably, the inner wall of the rubber tube is provided with a compression position control point which can control the compression position of the conductive electromagnetic shielding sealing rubber strip.
Preferably, the other side of the second double-sided tape is adhered to the first metal surface.
Preferably, the electromagnetic shielding sealing rubber strip further comprises a first conductive sealing gum, and the first conductive sealing gum is coated at the joint of the first conductive fabric and the first metal surface, so that the conductive electromagnetic shielding sealing rubber strip and the first metal surface form a continuous conductor to realize the electromagnetic shielding function.
Preferably, the conductive electromagnetic shielding flat adhesive tape further comprises a conductive electromagnetic shielding flat adhesive tape, wherein the conductive electromagnetic shielding flat adhesive tape comprises a second conductive fabric, a second conductive rubber, a second metal sheet and a third double-sided adhesive tape, the second conductive fabric is in contact with the first conductive fabric, the second conductive rubber is arranged between the second conductive fabric and the second metal sheet, and one side of the third double-sided adhesive tape is bonded with the second metal sheet.
Preferably, the other side of the third double-sided tape is adhered to the second metal surface.
The conductive electromagnetic shielding flat rubber strip is bonded on the second metal surface and is in contact with the first conductive fabric, the contact area between the conductive electromagnetic shielding sealing rubber strip and the second metal surface is increased, and meanwhile, the gap between the first metal surface and the second metal surface is filled, namely, the gap of a door frame needing to be sealed on equipment is filled, so that a continuous conductor is formed between the first metal surface, the conductive electromagnetic shielding sealing rubber strip and the second metal surface, and the electromagnetic shielding function and the rainproof sealing function can be better realized.
Preferably, the second conductive rubber, the second conductive fabric and the second metal sheet are integrally vulcanized, so that the mechanical performance of the conductive electromagnetic shielding flat rubber strip can be improved, the service life of the conductive electromagnetic shielding flat rubber strip is prolonged, and the second conductive fabric has friction resistance as the surface.
Preferably, the electromagnetic shielding rubber strip further comprises a second conductive sealant, the second conductive sealant is coated on the joint of the conductive electromagnetic shielding flat rubber strip and the second metal surface, the electromagnetic shielding rubber strip further comprises a base, the groove is formed in the base, and the rubber tube is a silicon rubber tube or an ethylene propylene diene monomer rubber tube.
Preferably, the adhesive tape further comprises a first isolation film and a second isolation film, wherein the first isolation film is adhered to the second double-sided adhesive tape, and the second isolation film is adhered to the third double-sided adhesive tape.
When the conductive electromagnetic shielding flat adhesive tape is used, the first isolating film on the second double-sided adhesive tape and the second isolating film on the third double-sided adhesive tape are torn, the conductive electromagnetic shielding sealing adhesive tape is fixed in a gap needing to be sealed on equipment, the second double-sided adhesive tape of the conductive electromagnetic shielding sealing adhesive tape is adhered to the surface of the first metal, the conductive adhesive is coated on the joint of the first conductive fabric and the surface of the second metal, the first conductive fabric and the surface of the first metal form a continuous conductor, and the third double-sided adhesive tape of the conductive electromagnetic shielding flat adhesive tape is adhered to the surface of the second metal, so that the conductive electromagnetic shielding function and the waterproof sealing function can be achieved; the compression position control point arranged in the rubber tube of the conductive electromagnetic shielding sealing rubber strip can control the compression position of the conductive electromagnetic shielding sealing rubber strip.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the surface of the conductive electromagnetic shielding sealing rubber strip is provided with the first conductive fabric which is friction-resistant, and the first conductive fabric and the first conductive rubber are integrally vulcanized, so that the obtained sealing rubber strip has good mechanical property and rebound resilience, the service life is prolonged, the thickness of the obtained product is small, and the volume of the product is greatly reduced; the sealing rubber strip can be used for a gap needing to be sealed on equipment, can realize electromagnetic shielding and has a waterproof sealing function.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view showing a structure in which the second double-sided adhesive tape is attached to the first separator.
Fig. 3 is a schematic view showing a structure in which the third double-sided adhesive tape is attached to the second separator.
Fig. 4 is a schematic view of the installation of the present invention.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-first conductive fabric, 2-first conductive rubber, 3-rubber tube, 31-groove, 32-compression position control point, 4-first double-sided tape, 5-first metal sheet, 6-second double-sided tape, 7-first conductive sealant, 8-conductive electromagnetic shielding flat adhesive tape, 81-second conductive fabric, 82-second conductive rubber, 83-second metal sheet, 84-third double-sided tape, 85-second conductive sealant, 9-base, 10-first isolating membrane, 11-first surface metal, 12-second surface metal, 13-second isolating membrane.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The conductive electromagnetic shielding sealing rubber strip is arranged in a gap between door frames to be sealed and comprises a rubber tube 3, wherein first conductive rubber 2 and first conductive fabric 1 are sequentially arranged on the rubber tube 3, a groove 31 is formed in the rubber tube 3, a first double-sided adhesive tape 4, a first metal sheet 5 and a second double-sided adhesive tape 6 are arranged in the groove 31, the first metal sheet 5 is bonded with the rubber tube 3 through the first double-sided adhesive tape 4, one side of the second double-sided adhesive tape 6 is bonded with the first metal sheet 5, and the other side of the second double-sided adhesive tape is bonded with a first metal surface 11.
The first conductive fabric 1, the first conductive rubber 2 and the rubber tube 3 are integrally vulcanized, the mechanical performance of the conductive electromagnetic shielding sealing rubber strip can be improved, the service life of the conductive electromagnetic shielding sealing rubber strip is prolonged, and the first conductive fabric 1 has friction resistance as the surface.
The inner wall of the rubber tube 3 is provided with a compression position control point 32, and the compression position control point 32 is a groove and can control the compression position of the conductive electromagnetic shielding sealing rubber strip.
The conductive electromagnetic shielding sealing rubber strip is characterized by further comprising a first conductive sealing gum 7, wherein the first conductive sealing gum 7 is coated on the joint of the first conductive fabric 1 and the first metal surface 11, so that the conductive electromagnetic shielding sealing rubber strip and the first metal surface 11 form a continuous conductor, and the electromagnetic shielding function is realized.
The conductive electromagnetic shielding flat adhesive tape 8 comprises a second conductive fabric 81, a second conductive rubber 82, a second metal sheet 83 and a third double-sided adhesive tape 84, wherein the second conductive fabric 81 is in contact with the first conductive fabric 1, the second conductive rubber 82 is arranged between the second conductive fabric 81 and the second metal sheet 83, one side of the third double-sided adhesive tape 84 is bonded with the second metal sheet 83, and the other side of the third double-sided adhesive tape is bonded with the second metal surface 12.
The flat adhesive tape 8 of electrically conductive electromagnetic shield bonds on second metal surface 12, with the contact of first conductive fabric 1, the area of contact of electrically conductive electromagnetic shield joint strip and second metal surface has been increased, first metal surface 11 and the clearance of second metal surface 12 have been filled up simultaneously, the clearance of the door frame that needs to seal on the equipment promptly, make first metal surface 11, form a continuous conductor between electrically conductive electromagnetic shield joint strip and the second metal surface 12, can realize the sealing function of electromagnetic shield function and rain-proof water better.
The second conductive rubber 82, the second conductive fabric 81 and the second metal sheet 83 are integrally vulcanized, so that the mechanical performance of the conductive electromagnetic shielding flat rubber strip 8 can be improved, the service life of the conductive electromagnetic shielding flat rubber strip is prolonged, and the second conductive fabric 81 has friction resistance as the surface.
The conductive electromagnetic shielding flat rubber strip 8 further comprises a second conductive sealant 85, and the second conductive sealant 85 is coated on the joint of the conductive electromagnetic shielding flat rubber strip 8 and the second metal surface 12, so that the conductive electromagnetic shielding flat rubber strip 8 and the second metal surface 12 form a continuous conductor, and the electromagnetic shielding function is realized.
The device also comprises a base 9, and a groove 31 is formed in the base 9.
The rubber tube 3 is a silicone rubber tube.
The adhesive tape further comprises a first isolation film 10 and a second isolation film 13, wherein the first isolation film 10 is adhered to the second double-sided adhesive tape 6, and the first isolation film 13 is adhered to the third double-sided adhesive tape 84. The second double-sided adhesive tape 6 is bonded with the first metal surface 11 after the isolating film 10 is torn off; the third double-sided tape 84 is bonded to the second metal surface 12 after the second separator 13 is peeled.
When the waterproof sealing adhesive tape is used, the first isolating film 10 on the second double-sided adhesive tape 6 and the second isolating film 13 on the third double-sided adhesive tape 84 are torn, the conductive electromagnetic shielding sealing adhesive tape is fixed in a gap needing to be sealed on equipment, the second double-sided adhesive tape 6 of the conductive electromagnetic shielding sealing adhesive tape is adhered to the first metal surface 11, the conductive sealant is coated 7 at the joint of the first conductive fabric 1 and the second metal surface 12, so that the first conductive fabric 1 and the first metal 5 form a continuous conductor, and the third double-sided adhesive tape 84 of the conductive electromagnetic shielding flat adhesive tape 8 is adhered to the second metal surface 12, so that the waterproof sealing adhesive tape can achieve the electromagnetic shielding function and the waterproof sealing function; the compression position control point 32 arranged in the rubber tube 3 of the conductive electromagnetic shielding sealing rubber strip can control the compression position of the conductive electromagnetic shielding sealing rubber strip.
The surface of the conductive electromagnetic shielding sealing rubber strip is provided with the first conductive fabric 1, friction resistance is realized, the first conductive fabric 1 and the first conductive rubber 2 are integrally vulcanized, so that the obtained sealing rubber strip is good in mechanical property and rebound resilience, the service life is prolonged, the thickness of the obtained product is small, and the volume of the product is greatly reduced; the sealing rubber strip can be used for a gap needing to be sealed on equipment, can realize electromagnetic shielding and has a waterproof sealing function.
Example 2
The same as example 1 except that the rubber tube 3 is an ethylene propylene diene monomer rubber tube.
Example 3
The conductive electromagnetic shielding sealing rubber strip obtained in the example 1-2 is subjected to performance tests, wherein the tensile strength is measured according to GB/T528-:
table 1 results of performance test of conductive electromagnetic shielding sealing rubber strip
| Item | Example 1 | Example 2 |
| Tensile strength/MPa | 5.6 | 10.8 |
| Volume resistivity/Ω · cm | 0.005 | 0.006 |
| Hardness/degree of Shao's A | 60 | 58 |
| Peel strength/MPa | 2.57 | 8.1 |
| Salt spray test/omega | 0.06 | 0.07 |
| Damp Heat test/Ω | 0.04 | 0.05 |
| Acid atmosphere test/omega | 0.06 | 0.07 |
As can be seen from table 1, the tensile strength of the conductive electromagnetic shielding sealing rubber strip is different due to different materials of the rubber tube, and when the rubber tube is made of silicon rubber, the tensile strength is 5.6MPa, and the peel strength is 2.57 MPa; when the rubber tube is ethylene propylene diene monomer, the tensile strength is 10.8MPa, and the peel strength is 8.1 MPa. The volume resistivity of the conductive electromagnetic shielding sealing rubber strip is 0.005-0.006 omega cm, less than 0.1 omega cm, the Share A hardness is 58-60 degrees, the results of a salt spray test and an acid atmosphere test are 0.06-0.07 omega, and the results of a damp-heat test are 0.04-0.05 omega, so that the conductive electromagnetic shielding sealing rubber strip meets the relevant standards of military equipment. Therefore, the conductive electromagnetic shielding sealing rubber strip prepared in the embodiments 1 and 2 has good electromagnetic shielding performance, good mechanical performance and sealing performance, and long service life, and meets the relevant standards of products.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. Electrically conductive electromagnetic shield joint strip, including rubber tube (3), its characterized in that: be equipped with first conductive rubber (2) and first conductive fabric (1) on rubber tube (3) in proper order, be equipped with recess (31) on rubber tube (3), be equipped with first double-sided tape (4), first sheetmetal (5) and second double-sided tape (6) in recess (31), first sheetmetal (5) bond through first double-sided tape (4) with rubber tube (3), second double-sided tape (6) one side bonds with first sheetmetal (5).
2. The electrically conductive, electromagnetically shielded joint strip of claim 1, wherein: the first conductive fabric (1) is integrally vulcanized with the first conductive rubber (2) and the rubber tube (3).
3. The electrically conductive, electromagnetically shielded joint strip of claim 1, wherein: the inner wall of the rubber tube (3) is provided with a compression position control point (32).
4. The electrically conductive, electromagnetically shielded joint strip of claim 1, wherein: the other side of the second double-sided tape (6) is bonded with the first metal surface (11).
5. The electrically conductive, electromagnetically shielded joint strip of claim 4, wherein: the fabric further comprises a first conductive sealant (7), wherein the first conductive sealant (7) is coated on the joint of the first conductive fabric (1) and the first metal surface (11).
6. The electrically conductive, electromagnetically shielded joint strip of claim 1, wherein: the electromagnetic shielding flat rubber strip is characterized by further comprising a conductive electromagnetic shielding flat rubber strip (8), wherein the conductive electromagnetic shielding flat rubber strip (8) comprises a second conductive fabric (81), second conductive rubber (82), a second metal sheet (83) and a third double-sided adhesive tape (84), the second conductive fabric (81) is in contact with the first conductive fabric (1), the second conductive rubber (82) is arranged between the second conductive fabric (81) and the second metal sheet (83), and one side of the third double-sided adhesive tape (84) is bonded with the second metal sheet (83).
7. The electrically conductive, electromagnetically shielded joint strip of claim 6, wherein: the other side of the third double-sided tape (84) is bonded to the second metal surface (12).
8. The electrically conductive, electromagnetically shielded joint strip of claim 6, wherein: the second conductive rubber (82) is integrally vulcanized with the second conductive fabric (81) and the second metal sheet (83).
9. The electrically conductive, electromagnetically shielded joint strip of claim 6, wherein: the electromagnetic shielding rubber tube is characterized by further comprising a second conductive sealant (85), wherein the second conductive sealant (85) is coated on the joint of the conductive electromagnetic shielding flat rubber strip (8) and the second metal surface (12), the electromagnetic shielding rubber tube further comprises a base (9), a groove (31) is formed in the base (9), and the rubber tube (3) is a silicon rubber tube or an ethylene propylene diene monomer rubber tube.
10. The electrically conductive, electromagnetically shielded joint strip of claim 1, wherein: the adhesive tape further comprises a first isolation film (10) and a second isolation film (13), wherein the first isolation film (10) is adhered to the second double-sided adhesive tape (6), and the second isolation film (13) is adhered to the third double-sided adhesive tape (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911354923.6A CN111065253B (en) | 2019-12-25 | 2019-12-25 | Conductive electromagnetic shielding sealing rubber strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911354923.6A CN111065253B (en) | 2019-12-25 | 2019-12-25 | Conductive electromagnetic shielding sealing rubber strip |
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| CN111065253A true CN111065253A (en) | 2020-04-24 |
| CN111065253B CN111065253B (en) | 2021-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114080125A (en) * | 2020-08-19 | 2022-02-22 | 上海铁路通信有限公司 | Electromagnetic shielding strip for machine cabinet |
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| CN110446408A (en) * | 2019-07-26 | 2019-11-12 | 中国电子科技集团公司第三十三研究所 | A kind of highly conductive p-type composite rubber liner of tear-proof and preparation method thereof |
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2019
- 2019-12-25 CN CN201911354923.6A patent/CN111065253B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202364528U (en) * | 2011-11-22 | 2012-08-01 | 中航华东光电有限公司 | Electromagnetic shielding liner |
| CN205213257U (en) * | 2015-12-11 | 2016-05-04 | 中国航空工业集团公司西安飞机设计研究所 | Electromagnetic protection and seal structure |
| CN106211733A (en) * | 2016-09-08 | 2016-12-07 | 河南民生特种装备有限公司 | The electromagnetic shielding chamber of metal form externally-packed structure and processing technology |
| CN208619011U (en) * | 2017-05-03 | 2019-03-19 | 陕西飞机工业（集团）有限公司 | A kind of cabin door sealing structure |
| CN109874287A (en) * | 2019-02-21 | 2019-06-11 | 东莞市雷兹盾电子材料有限公司 | A kind of metal knitted type electric silica gel casing and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114080125A (en) * | 2020-08-19 | 2022-02-22 | 上海铁路通信有限公司 | Electromagnetic shielding strip for machine cabinet |
| WO2022037214A1 (en) * | 2020-08-19 | 2022-02-24 | 上海铁路通信有限公司 | Electromagnetic shielding tape for cabinet |
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| CN111065253B (en) | 2021-10-08 |
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