CN220220005U - Compression-resistant conductive foam - Google Patents
Compression-resistant conductive foam Download PDFInfo
- Publication number
- CN220220005U CN220220005U CN202320504601.0U CN202320504601U CN220220005U CN 220220005 U CN220220005 U CN 220220005U CN 202320504601 U CN202320504601 U CN 202320504601U CN 220220005 U CN220220005 U CN 220220005U
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- Prior art keywords
- layer
- foam
- elastic layer
- compression
- protrusions
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Links
- 239000006260 foam Substances 0.000 title claims abstract description 66
- 230000006835 compression Effects 0.000 title claims abstract description 31
- 238000007906 compression Methods 0.000 title claims abstract description 31
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003063 flame retardant Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims abstract description 14
- 229920000297 Rayon Polymers 0.000 claims abstract 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000006261 foam material Substances 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 229920001002 functional polymer Polymers 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 73
- 239000012790 adhesive layer Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model belongs to the technical field of preparation and application of novel functional polymer materials, and particularly discloses compression-resistant conductive foam which is of a homomorphic multilayer structure, has a round-corner rectangular cross section and comprises a conductive cloth layer (100), a viscose layer (200), a flame-retardant material layer (300) and a foam core (400) from outside to inside; the foam inner core comprises an upper elastic layer (410), an upper bulge (411), an upper interval (412), a lower elastic layer (420), a lower bulge (421), a lower interval (422) and a filling layer (430); the compression-resistant conductive foam disclosed by the utility model is compact in structure, convenient to prepare, good in compression resistance and flame-retardant conductive effect, and compression permanent deformation is below 10%.
Description
Technical Field
The utility model belongs to the technical field of preparation and application of novel functional polymer materials, and particularly discloses compression-resistant conductive foam.
Background
The foam is foamed material of plastic particles, and is called foam for short. Foam is classified into PU foam, antistatic foam, conductive foam, EPE, antistatic EPE, CR, EVA, bridged PE, SBR, EPDM, etc. The conductive foam is coated with conductive cloth on the flame-retardant sponge, and after a series of treatments, the conductive foam has good surface conductivity and can be easily fixed on a device to be shielded by using an adhesive tape. Shielding materials having different cross-sectional shapes, mounting methods, UL ratings and shielding effectiveness may be selected. The conductive foam can be divided into: aluminum foil cloth foam, conductive fiber cloth foam, gold-plated cloth foam, carbon-plated cloth foam and the like. In electronic devices such as mobile phones, televisions, displays, notebooks, palm computers, car navigation systems and the like, conductive foam is commonly used for filling gaps on the electronic devices, which are communicated with an external space and an internal circuit space of the electronic devices, and is connected with a reference ground to avoid external static electricity from interfering with the electronic devices, or is used for electrically connecting a metal shell or a metal cover of an electronic component inside the electronic devices with the reference ground (such as a middle frame), so that electromagnetic interference is avoided between the electronic component and other electronic components (such as an antenna) inside the electronic devices, and meanwhile, the deformation is also relied on to buffer the external pressure. However, under certain use conditions, for example, after the external pressure is removed, the shape of the conductive foam needs to be restored to restore the buffer protection function, but at this time, the structure is difficult to restore the shape through the self-capacity, so that the conductive foam is permanently deformed after compression and loses the buffer protection function, and therefore, a conductive foam with small permanent deformation after compression needs to be developed in actual working conditions.
Disclosure of Invention
In order to overcome the defects, the utility model discloses compression-resistant conductive foam.
The technical scheme of the utility model is as follows:
the compression-resistant conductive foam is of a conformal multilayer structure, the cross section of the compression-resistant conductive foam is in a round corner rectangle, and the compression-resistant conductive foam comprises a conductive cloth layer, an adhesive layer, a flame-retardant material layer and a foam core from outside to inside;
the foam inner core comprises an upper elastic layer, an upper bulge, an upper interval, a lower elastic layer, a lower bulge, a lower interval and a filling layer;
the filling layer is clamped between the upper elastic layer and the lower elastic layer and is filled with foam materials;
the upper surface of the upper elastic layer is contacted with the flame retardant material layer, the lower surface of the upper elastic layer is uniformly provided with upper bulges protruding downwards, and upper intervals are uniformly arranged between the upper bulges;
the lower surface of the lower elastic layer is contacted with the flame retardant material layer, the upper surface is uniformly provided with lower bulges protruding upwards, and lower intervals are uniformly arranged between the lower bulges;
the upper protrusions and the lower protrusions are identical in shape and size and are arranged in an up-down staggered mode.
In the above-mentioned scheme, when the cotton compression of electrically conductive bubble, the filling layer can realize great deformation for go up the elastic layer with lower elastic layer is close, goes up protruding interval down, lower protruding interval down of being close, has elasticity when keeping certain rigidity, can be faster when external force is relieved resumes the shape.
Further, in the compression-resistant conductive foam, the thicknesses of the upper elastic layer and the lower elastic layer are the same. Preferably, the thickness of the elastic layer is the vertical distance from the flame retardant material layer to the interval.
Further, in the compression-resistant conductive foam, the ratio of the thickness of the upper elastic layer to the thickness of the upper protrusions is 1:1-1:2.
Further, according to the compression-resistant conductive foam, the upper protrusions are semicircular.
Further, according to the compression-resistant conductive foam, the ratio of the diameter of the upper protrusion to the spacing width of the upper protrusion is 2:1-2:2.
further, in the compression-resistant conductive foam, the ratio of the thickness of the filling layer to the thickness of the upper elastic layer is 2:1-1:1. The thickness of the filling layer is the vertical distance between the upper and lower intervals.
Further, according to the compression-resistant conductive foam, the filling layer is made of PVC foam.
Further, according to the compression-resistant conductive foam, the upper elastic layer is made of elastic rubber.
Further, according to the compression-resistant conductive foam, the conductive cloth layer contains aluminum foil.
The technical scheme can be used for obtaining the following beneficial effects: the utility model belongs to the technical field of preparation and application of novel functional polymer materials, and particularly discloses compression-resistant conductive foam.
Drawings
FIG. 1 is a schematic illustration of a conventional conductive foam structure in the prior art;
FIG. 2 is a schematic view of a compression-resistant conductive foam of the present disclosure;
wherein: the foam core comprises a conductive cloth layer 100, an adhesive layer 200, a flame retardant material layer 300, a foam core 400, an upper elastic layer 410, upper protrusions 411, upper spaces 412, a lower elastic layer 420, lower protrusions 421, lower spaces 422 and a filling layer 430.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
Example 1
The compression-resistant conductive foam shown in fig. 2 is of a multi-layer structure with the same shape, the cross section of the foam is in a round rectangle, and the foam comprises a conductive cloth layer 100, an adhesive layer 200, a flame retardant material layer 300 and a foam core 400 from outside to inside;
the foam core comprises an upper elastic layer 410, an upper bulge 411, an upper interval 412, a lower elastic layer 420, a lower bulge 421, a lower interval 422 and a filling layer 430;
the filling layer 430 is sandwiched between the upper elastic layer 410 and the lower elastic layer 420, and is filled with foam material;
the upper surface of the upper elastic layer 410 contacts the flame retardant material layer 300, the lower surface is uniformly provided with upper protrusions 411 protruding downward, and upper spaces 412 are uniformly spaced between the upper protrusions 411;
the lower surface of the lower elastic layer 410 contacts the flame retardant material layer 300, the upper surface is uniformly provided with lower protrusions 421 protruding upwards, and lower spaces 422 are uniformly spaced between the lower protrusions 421;
the upper protrusions 411 and the lower protrusions 421 have the same shape and size, and are staggered up and down.
When the conductive foam is used, the filling layer 430 can realize larger deformation when being compressed, so that the upper elastic layer 410 is close to the lower elastic layer 420, the upper bulge 411 is close to the lower interval 422, the lower bulge 421 is close to the upper interval 412, certain rigidity is maintained, and the conductive foam has elasticity, and can recover the shape quickly when the external force is relieved.
Example 2
The compression-resistant conductive foam shown in fig. 2 is of a multi-layer structure with the same shape, the cross section of the foam is in a round rectangle, and the foam comprises a conductive cloth layer 100, an adhesive layer 200, a flame retardant material layer 300 and a foam core 400 from outside to inside;
the foam core comprises an upper elastic layer 410, an upper bulge 411, an upper interval 412, a lower elastic layer 420, a lower bulge 421, a lower interval 422 and a filling layer 430;
the filling layer 430 is sandwiched between the upper elastic layer 410 and the lower elastic layer 420, and is filled with foam material;
the upper surface of the upper elastic layer 410 contacts the flame retardant material layer 300, the lower surface is uniformly provided with upper protrusions 411 protruding downward, and upper spaces 412 are uniformly spaced between the upper protrusions 411;
the lower surface of the lower elastic layer 410 contacts the flame retardant material layer 300, the upper surface is uniformly provided with lower protrusions 421 protruding upwards, and lower spaces 422 are uniformly spaced between the lower protrusions 421;
the upper protrusions 411 and the lower protrusions 421 have the same shape and size, and are staggered up and down;
preferably, the upper elastic layer 410 and the lower elastic layer 420 have the same thickness; in particular, the ratio of the thickness of the upper elastic layer 410 to the upper protrusion 411 is 1:1.5; further, the upper protrusion 411 is semicircular; preferably, the ratio of the diameter of the upper protrusion 411 to the upper space 412 is 2:1; in particular, the ratio of the thickness of the filler layer 430 to the thickness of the upper elastic layer 410 is 2:1; further, the material of the filling layer 430 is PVC foam; preferably, the upper elastic layer 410 and the lower elastic layer 420 are made of elastic rubber; in particular, the conductive cloth layer 100 contains aluminum foil.
When the conductive foam is used, when the conductive foam is compressed, the filling layer 430 can realize larger deformation, so that the upper elastic layer 410 is close to the lower elastic layer 420, the upper bulge 411 is close to the lower interval 422, the lower bulge 421 is close to the upper interval 412, certain rigidity is kept, the conductive foam has elasticity, and can recover the shape quickly when the external force is relieved, the conductive foam has good compression resistance and flame-retardant conductive effect, and the compression set is less than 10%.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, i.e. the present utility model is not limited to the above embodiments, but is capable of being modified and varied in all ways according to the following claims and the detailed description.
Claims (1)
1. The compression-resistant conductive foam is characterized by being of a multi-layer structure in the same shape, the cross section of the compression-resistant conductive foam is in a round corner rectangle, and the compression-resistant conductive foam comprises a conductive cloth layer (100), a viscose layer (200), a flame-retardant material layer (300) and a foam core (400) from outside to inside;
the foam inner core comprises an upper elastic layer (410), an upper bulge (411), an upper interval (412), a lower elastic layer (420), a lower bulge (421), a lower interval (422) and a filling layer (430);
the filling layer (430) is sandwiched between the upper elastic layer (410) and the lower elastic layer (420) and is filled with foam materials;
the upper surface of the upper elastic layer (410) is contacted with the flame retardant material layer (300), the lower surface is uniformly provided with upper protrusions (411) protruding downwards, and upper intervals (412) are uniformly arranged between the upper protrusions (411);
the lower surface of the lower elastic layer (420) is contacted with the flame retardant material layer (300), the upper surface is uniformly provided with lower protrusions (421) protruding upwards, and lower intervals (422) are uniformly arranged between the lower protrusions (421);
the upper protrusions (411) and the lower protrusions (421) are the same in shape and size and are arranged in a staggered mode up and down;
the upper elastic layer (410) and the lower elastic layer (420) have the same thickness;
the ratio of the thickness of the upper elastic layer (410) to the upper protrusion (411) is 1:1-1:2;
the upper bulge (411) is semicircular;
the ratio of the diameter of the upper protrusion (411) to the width of the upper space (412) is 2:1-2:2;
the ratio of the thickness of the filler layer (430) to the thickness of the upper elastic layer (410) is 2:1-1:1;
the filling layer (430) is made of PVC foam;
the upper elastic layer (410) is made of elastic rubber;
the conductive cloth layer (100) contains aluminum foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320504601.0U CN220220005U (en) | 2023-03-16 | 2023-03-16 | Compression-resistant conductive foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320504601.0U CN220220005U (en) | 2023-03-16 | 2023-03-16 | Compression-resistant conductive foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220220005U true CN220220005U (en) | 2023-12-22 |
Family
ID=89196471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320504601.0U Active CN220220005U (en) | 2023-03-16 | 2023-03-16 | Compression-resistant conductive foam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220220005U (en) |
-
2023
- 2023-03-16 CN CN202320504601.0U patent/CN220220005U/en active Active
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