CN214927697U - Electromagnetic shielding light high-strength sandwich plate - Google Patents
Electromagnetic shielding light high-strength sandwich plate Download PDFInfo
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- CN214927697U CN214927697U CN202021786810.1U CN202021786810U CN214927697U CN 214927697 U CN214927697 U CN 214927697U CN 202021786810 U CN202021786810 U CN 202021786810U CN 214927697 U CN214927697 U CN 214927697U
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Abstract
The utility model discloses an anti-electromagnetic shielding light sandwich board that excels in, including the reinforcing material layer with lay in the fine layer of fibrous layer and the epoxy resin of reinforcing material layer upper and lower surface, the fibrous layer locates the reinforcing material layer two sides as supporting regional symmetry, the fine layer of epoxy resin glass has a plurality of and distributes on the fibrous layer as electronic components's installation area, the fine layer of epoxy resin glass is connected with the contact surface interlock of fibrous layer. In this way, the utility model has the advantages of light, intensity height and anti-electromagnetic interference intensity are high, the wide application is in the electronic product.
Description
Technical Field
The utility model belongs to the technical field of composite board technique and specifically relates to a prevent electromagnetic shielding light high strength sandwich board is related to.
Background
With the large-scale production of low-cost carbon fibers and the maturity of carbon fiber composite manufacturing technologies, light-weight and high-strength carbon fiber composite materials are increasingly and widely applied to housings of 3C electronic products such as notebook computers, tablet computers, mobile phones and other devices.
Since the conductive carbon fiber material can shield electromagnetic signals, the use of a single carbon fiber material as the housing can affect the use effect of the 3C electronic product. Therefore, a housing made of carbon fiber is usually partially penetrated and then injection-molded and filled with plastic material to facilitate transmission and reception of electromagnetic signals. However, the bonding strength between the carbon fiber and the plastic part is weak, which affects the use experience of the electronic product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electromagnetic shielding's light weight high strength sandwich board has light, excels in, prevents electromagnetic signal separation's advantage, and the wide application is in electronic product.
In order to solve the technical problem, the utility model provides a technical scheme is: the utility model provides an anti-electromagnetic shielding's fine sandwich panel of light weight, includes the reinforcing material layer and lays the fine layer of carbon fiber layer and the epoxy resin of the upper and lower surface on the reinforcing material layer, and the carbon fiber layer locates the reinforcing material layer two sides as the regional symmetry of support, and the fine layer of epoxy resin has a plurality of and just distributes on the carbon fiber layer as electronic components's installation area, and the fine layer of epoxy resin is connected with the contact surface interlock on carbon fiber layer.
The electromagnetic shielding light high-strength sandwich plate has the advantages that the carbon fiber layer and the epoxy resin glass fiber layer are arranged to be of the layered structure, and the number of the carbon fiber layer and the epoxy resin glass fiber layer is 1-8.
In the electromagnetic shielding light high-strength sandwich plate, the thickness of the epoxy resin glass fiber layer is the same as that of the carbon fiber layer.
In the electromagnetic shielding light high-strength sandwich plate, the contact surface of the epoxy resin glass fiber layer and the carbon fiber layer is in zigzag meshing connection or in meshing connection of the mutually matched protrusions and grooves.
In the electromagnetic shielding light high-strength sandwich plate, the reinforcing material layer comprises any one or a compound combination of polyester fiber, polypropylene fiber, glass fiber, polyamide fiber, fibrilia, cotton fiber and aramid fiber.
According to the electromagnetic shielding light high-strength sandwich plate, the reinforcing material layer is impregnated with the epoxy resin compound for bonding the carbon fiber layer and the epoxy resin glass fiber layer on the upper surface and the lower surface of the reinforcing material layer.
In the electromagnetic shielding light high-strength sandwich plate, the epoxy resin compound on the reinforcing material layer comprises one or more of bisphenol A type novolac epoxy resin, o-cresol epoxy resin, phosphorus-containing epoxy resin or dicyclopentadiene epoxy resin.
In the electromagnetic shielding light high-strength sandwich plate, the reinforcing material layer, the epoxy resin glass fiber layer and the epoxy resin compound are filled with light hollow glass microspheres or hollow plastic microspheres.
The utility model discloses the beneficial effect who gains is: the carbon fiber layer has the characteristics that intensity is high, and is regional as the support on surface, improves the intensity of sandwich panel, adopts the fine layer of epoxy resin glass as the installation region for the installation sets up electronic components, cooperatees through the fine layer of epoxy resin glass and the high strength carbon fiber layer, ensures the signal transmission between electronic components when improving intensity, has higher practicality. The hollow glass microspheres and the hollow plastic microspheres are filled in the reinforcing material layer and the epoxy resin glass fiber layer, so that the overall density of the plate is reduced, the plate is light in weight, the insulating property of the material is further improved, and the signal transmission quality among electronic components is favorably improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is another schematic structural diagram of an embodiment of the present invention;
fig. 3 is a cross-sectional view of the embodiment of the invention of fig. 1 at a-a.
Description of reference numerals: 1 reinforcing material layer, 2 carbon fiber layers, 3 fine layers of epoxy resin glass.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 3, an anti-electromagnetic shielding light high-strength sandwich plate comprises a reinforcing material layer 1, a carbon fiber layer 2 and an epoxy resin glass fiber layer 3, wherein the carbon fiber layer 2 and the epoxy resin glass fiber layer 3 are laid on the upper surface and the lower surface of the reinforcing material layer 1, the carbon fiber layer 2 is arranged on two surfaces of the reinforcing material layer 1 as a supporting area, the epoxy resin glass fiber layer 3 is provided with a plurality of installing areas distributed on the carbon fiber layer 2 as electronic components, and the epoxy resin glass fiber layer 3 is connected with the carbon fiber layer 2 in an occluded manner. The upper and lower surface of sandwich panel uses carbon fiber layer 2 as the main part, and the fine layer 3 dispersion of epoxy glass is in the local area that needs installation electronic components. In actual use, a plurality of epoxy resin glass fiber layers 3 form the installation area of a plurality of electronic components.
The carbon fiber layer 2 and the epoxy resin glass fiber layer 3 are arranged to be of layered structures, and the number of layers of the carbon fiber layer 2 and the epoxy resin glass fiber layer is 1-8. The thickness of the epoxy resin glass fiber layer 3 is the same as that of the carbon fiber layer 2.
As shown in fig. 1 and 2, the contact surface of the epoxy resin glass fiber layer 3 and the carbon fiber layer 2 is designed to be in zigzag engagement connection or in engagement connection of the mutually matched protrusions and grooves.
The reinforcing material layer 1 comprises any one of polyester fiber, polypropylene fiber, glass fiber, polyamide fiber, hemp fiber, cotton fiber and aramid fiber or a composite combination thereof.
The reinforcing material layer 1 is impregnated with epoxy resin compound for bonding the carbon fiber layer 2 and the epoxy resin glass fiber layer 3 on the upper and lower surfaces of the reinforcing material layer 1. The epoxy resin compound on the reinforcing material layer 1 comprises one or more of bisphenol A type novolac epoxy resin, o-cresol epoxy resin, phosphorus-containing epoxy resin or dicyclopentadiene epoxy resin. The reinforcing material layer 1, the epoxy resin glass fiber layer 3 and the epoxy resin compound are filled with light hollow glass microspheres or hollow plastic microspheres.
The preparation method of the sandwich plate comprises the following steps:
(1) preparing glue solution: uniformly mixing epoxy resin and a curing agent according to a certain mass ratio to form an epoxy resin glue solution, adding hollow glass beads accounting for 15-70% of the total volume into the glue solution, and fully dispersing the hollow glass beads into the glue solution.
(2) Manufacturing an adhesive sheet: and (3) soaking the glass fiber cloth in the epoxy resin glue solution obtained in the step (1), and then baking to form a prepreg bonding sheet with the thickness of 0.1-0.3 mm.
(3) Preparing a reinforcing material layer: and (3) paving corresponding number of the semi-cured bonding sheets in the step (2), and performing hot-pressing curing under the conditions of high temperature, high pressure and vacuum, wherein the temperature is 130-200 ℃, the pressure is 40-180 psi, and the vacuum degree under the vacuum condition is 20-60 torr, so as to form the fully-cured lightweight plate.
(4) Pre-stacking carbon fibers: and (3) laminating the carbon fiber prepreg according to a certain laminating mode.
(5) Cutting carbon fibers: and cutting the superposed carbon fiber prepreg to form a notch with a proper size at a required position.
(6) Laying carbon fibers: and symmetrically laying the cut carbon fiber prepreg on the upper surface and the lower surface of the fully-cured light plate. The positions and sizes of the gaps on the carbon fiber layers on the upper surface and the lower surface are required to be consistent.
(7) Cutting the epoxy resin glass fiber board: and cutting the epoxy resin glass fiber board into a size consistent with the gap on the carbon fiber prepreg layer.
(8) Pasting an epoxy resin glass fiber board: and adhering the cut epoxy resin glass fiber boards on the light core board exposed at the gaps of the carbon fiber prepreg on the upper surface and the lower surface.
(9) Hot-press molding: and starting the hot press, carrying out secondary hot-pressing curing molding, and cooling to obtain the electromagnetic shielding light high-strength sandwich plate, wherein the temperature of the secondary hot pressing is 130-200 ℃, the pressure is 40-180 psi, and the vacuum degree under the vacuum condition is 20-60 torr.
In summary, the present invention has been made to practical samples according to the description and the drawings, and after a plurality of use tests, the utility model can be proved to achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only used to conveniently illustrate the present invention, and are not to the limit of the present invention in any form, and any person who knows commonly in the technical field has, if not in the scope of the technical features of the present invention, utilize the present invention to make the equivalent embodiment of local change or modification, and not to break away from the technical features of the present invention, and all still belong to the technical features of the present invention.
Claims (5)
1. The utility model provides an electromagnetic shielding light weight high strength sandwich panel which characterized in that: including reinforcing material layer (1) and lay in the fine layer (3) of carbon fiber layer (2) and the epoxy resin glass of upper and lower surface of reinforcing material layer (1), reinforcing material layer (1) two sides are located as supporting region symmetry in carbon fiber layer (2), and the fine layer (3) of epoxy resin glass has a plurality of and distributes on carbon fiber layer (2) as electronic components's installation area, and the fine layer (3) of epoxy resin glass is connected with the contact surface interlock of carbon fiber layer (2).
2. An electromagnetic shielding light weight high strength sandwich panel as claimed in claim 1, wherein: the carbon fiber layer (2) and the epoxy resin glass fiber layer (3) are arranged into a layered structure, and the number of layers of the carbon fiber layer and the epoxy resin glass fiber layer is 1-8.
3. An electromagnetic shielding light weight high strength sandwich panel according to claim 2, characterized in that: the thickness of the epoxy resin glass fiber layer (3) is the same as that of the carbon fiber layer (2).
4. An electromagnetic shielding light weight high strength sandwich panel as claimed in claim 1, wherein: the contact surface of the epoxy resin glass fiber layer (3) and the carbon fiber layer (2) is designed to be in zigzag meshing connection or in meshing connection with the mutually matched bulges and grooves.
5. An electromagnetic shielding light weight high strength sandwich panel as claimed in claim 1, wherein: the reinforcing material layer (1) is impregnated with epoxy resin compound for bonding the carbon fiber layer (2) and the epoxy resin glass fiber layer (3) on the upper and lower surfaces of the reinforcing material layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021786810.1U CN214927697U (en) | 2020-08-24 | 2020-08-24 | Electromagnetic shielding light high-strength sandwich plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021786810.1U CN214927697U (en) | 2020-08-24 | 2020-08-24 | Electromagnetic shielding light high-strength sandwich plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214927697U true CN214927697U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021786810.1U Active CN214927697U (en) | 2020-08-24 | 2020-08-24 | Electromagnetic shielding light high-strength sandwich plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214927697U (en) |
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- 2020-08-24 CN CN202021786810.1U patent/CN214927697U/en active Active
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Address after: 526071 building B1, No. 7, Xingsheng Fourth Road, Yong'an Town, Dinghu District, Zhaoqing City, Guangdong Province Patentee after: Zhongke Weihe Technology (Zhaoqing) Co.,Ltd. Address before: 526000 building B1, No. 7, Xingsheng Fourth Road, Yongxing Town, Dinghu District, Zhaoqing City, Guangdong Province Patentee before: Zhongke Weihe Technology (Zhaoqing) Co.,Ltd. |