CN209949782U - Electromagnetic shielding sheet for wireless charging - Google Patents
Electromagnetic shielding sheet for wireless charging Download PDFInfo
- Publication number
- CN209949782U CN209949782U CN201920628504.6U CN201920628504U CN209949782U CN 209949782 U CN209949782 U CN 209949782U CN 201920628504 U CN201920628504 U CN 201920628504U CN 209949782 U CN209949782 U CN 209949782U
- Authority
- CN
- China
- Prior art keywords
- layer
- main body
- wireless charging
- shielding
- electromagnetic
- 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.)
- Active
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model belongs to the technical field of wireless charging, in particular to an electromagnetic shielding sheet for wireless charging, which comprises a shielding main body, an isolation main body and an absorption main body which are arranged from top to bottom in sequence; the shielding main body comprises a plurality of layers of crushed nanocrystalline layers and a heat-conducting double-sided adhesive layer arranged between every two adjacent crushed nanocrystalline layers; the isolation main body comprises a nickel-copper conductive cloth layer and a silver fiber elastic cloth layer which are sequentially adhered from top to bottom; the absorption main body comprises an electromagnetic shielding glass layer and a wave-absorbing layer which are sequentially pasted from top to bottom. The shielding to the electromagnetic wave is more thorough, improves wireless charging module's charge efficiency more effectively.
Description
Technical Field
The utility model belongs to the technical field of wireless charging, especially, relate to a wireless electromagnetic shielding piece for charging.
Background
The wireless charging technology is also called non-contact charging, and currently, the wireless charging is mainly realized by utilizing an electromagnetic wave induction principle or a magnetic resonance mode and utilizing a mode of generated electromagnetic induction or frequency resonance through coils respectively arranged at two sides of a transmitting end and a receiving end. For safety, the wireless charging currently needs to adopt an electromagnetic shielding sheet to shield electromagnetic waves, so as to reduce energy loss and improve charging efficiency.
The existing electromagnetic shielding sheet is mostly formed by compounding a plurality of layers of nano crystals, the nano crystals have good magnetic permeability to shield electromagnetic waves, however, the electromagnetic shielding sheet only containing the nano crystals can not completely shield the electromagnetic waves, so that the electromagnetic waves are not completely shielded, the leakage of the electromagnetic waves is caused, and the use of people is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the electromagnetic shielding piece for wireless charging is provided, electromagnetic waves are shielded more thoroughly, and the charging efficiency of the wireless charging module is improved more effectively.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an electromagnetic shielding sheet for wireless charging comprises a shielding main body, an isolating main body and an absorbing main body which are sequentially arranged from top to bottom; the shielding main body comprises a plurality of layers of crushed nanocrystalline layers and a heat-conducting double-sided adhesive layer arranged between every two adjacent crushed nanocrystalline layers; the isolation main body comprises a nickel-copper conductive cloth layer and a silver fiber elastic cloth layer which are sequentially adhered from top to bottom; the absorption main body comprises an electromagnetic shielding glass layer and a wave-absorbing layer which are sequentially pasted from top to bottom.
As an improvement of the electromagnetic shielding sheet for wireless charging, the monomer gap of the fragmented nanocrystalline layer is 0.2 ~ 4 μm.
As a wireless improvement of using electromagnetic shielding piece that charges, heat conduction double-sided glue film is provided with a plurality of through-hole.
As a wireless for charging electromagnetic shield piece an improvement, still include the protective layer, the protective layer set up in the surface of shielding main part.
As an improvement of the electromagnetic shielding sheet for wireless charging, the protective layer is any one of a metal foil, a graphite sheet and a graphene coating.
As a wireless improvement of using electromagnetic shielding piece that charges, still include the gum from the type layer, the gum from the type layer with the microwave absorbing layer bonds.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
1) the electromagnetic shielding sheet of the utility model, through setting up the shielding main body, isolating the main body and absorbing the main body, shield, isolate and absorb the electromagnetic wave respectively, thus carry on the isolated electromagnetic wave of multi-level, prevent the phenomenon that the existing single shielding main body electromagnetic wave reveals, reach the effect of shielding the electromagnetic wave completely, raise the charging efficiency of the wireless charging module;
2) the utility model adopts the crushed nanocrystalline as the main material of the shielding main body, the resistivity of the nanocrystalline layer can be improved by the crushing treatment, the eddy current loss per se is reduced, and better magnetic conductivity can be obtained, so that the shielding is more thorough;
3) the utility model discloses a nickel copper conducting cloth layer and silver fibre elasticity cloth layer shield the electromagnetic wave, strengthen the shielding ability of electromagnetic wave. In addition, the utility model discloses utilize absorbing layer and battery shielding glass layer to absorb and multiple absorption the electromagnetic wave respectively, make the absorption more thorough to make the material more thorough to the shielding of electromagnetic wave.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: the manufacturing method comprises the following steps of 1-a shielding main body, 2-an isolating main body, 3-an absorbing main body, 4-a protective layer, 5-a back adhesive release layer, 11-a crushed nanocrystalline layer, 12-a heat-conducting double-sided adhesive layer, 21-a nickel-copper conductive cloth layer, 22-a silver fiber elastic cloth layer, 31-an electromagnetic shielding glass layer, 32-a wave absorbing layer and 121-a through hole.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.
As shown in fig. 1, an electromagnetic shielding sheet for wireless charging comprises a shielding body 1, an isolating body 2 and an absorbing body 3 which are arranged from top to bottom in sequence; the shielding main body 1 comprises a plurality of layers of crushed nanocrystalline layers 11 and a heat-conducting double-sided adhesive layer 12 arranged between two adjacent crushed nanocrystalline layers 11; the isolation main body 2 comprises a nickel-copper conductive cloth layer 21 and a silver fiber elastic cloth layer 22 which are sequentially adhered from top to bottom; the absorption body 3 comprises an electromagnetic shielding glass layer 31 and a wave-absorbing layer 32 which are sequentially adhered from top to bottom.
Further, the monomer gap of the crushed nanocrystalline layer 11 is 0.2 ~ 4 μm, and a proper gap is beneficial to reducing the thermal resistance at the gap connection position and optimizing the whole heat dissipation effect.
Further, the heat-conductive double-sided adhesive layer 12 is provided with a plurality of through holes 121. The arrangement of the plurality of through holes 121 can improve the heat conduction efficiency of the electromagnetic shielding sheet.
Further, the utility model discloses still include protective layer 4, protective layer 4 sets up in the surface of shielding main part 1. The protective layer 4 is any one of a metal foil, a graphite sheet, and a graphene coating. The protective layer 4 is adopted to carry out edge covering treatment on the shielding main body 1, so that the aging of the section caused by the invasion of environmental water vapor can be prevented, and the crushed nanocrystalline is prevented from falling out from the section to form a conductive foreign matter. In addition, the material used for the protective layer 4 has high thermal conductivity, so that the electromagnetic shielding performance is good, and the heat dissipation performance is good.
Further, the utility model discloses still include the gum from type layer 5, the gum bonds from type layer 5 and microwave absorbing layer. The setting of back adhesive release layer 5 facilitates the pasting of electromagnetic shielding sheets, and during use, only the release paper needs to be torn down.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The utility model provides a wireless electromagnetic shield piece for charging which characterized in that: the shielding body, the isolating body and the absorbing body are sequentially arranged from top to bottom; the shielding main body comprises a plurality of layers of crushed nanocrystalline layers and a heat-conducting double-sided adhesive layer arranged between every two adjacent crushed nanocrystalline layers; the isolation main body comprises a nickel-copper conductive cloth layer and a silver fiber elastic cloth layer which are sequentially adhered from top to bottom; the absorption main body comprises an electromagnetic shielding glass layer and a wave-absorbing layer which are sequentially pasted from top to bottom.
2. The electromagnetic shield sheet for wireless charging according to claim 1, wherein the monomer gap of the fragmented nanocrystalline layer is 0.2 ~ 4 μm.
3. The electromagnetic shield sheet for wireless charging according to claim 1, characterized in that: the heat-conducting double-sided adhesive layer is provided with a plurality of through holes.
4. The electromagnetic shield sheet for wireless charging according to claim 1, characterized in that: still include the protective layer, the protective layer set up in the surface of shielding main part.
5. The electromagnetic shield sheet for wireless charging according to claim 4, characterized in that: the protective layer is any one of metal foil, a graphite sheet and a graphene coating.
6. The electromagnetic shield sheet for wireless charging according to claim 1, characterized in that: the wave absorbing layer is characterized by further comprising a back adhesive release layer, and the back adhesive release layer is bonded with the wave absorbing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628504.6U CN209949782U (en) | 2019-05-05 | 2019-05-05 | Electromagnetic shielding sheet for wireless charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628504.6U CN209949782U (en) | 2019-05-05 | 2019-05-05 | Electromagnetic shielding sheet for wireless charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209949782U true CN209949782U (en) | 2020-01-14 |
Family
ID=69131229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920628504.6U Active CN209949782U (en) | 2019-05-05 | 2019-05-05 | Electromagnetic shielding sheet for wireless charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209949782U (en) |
-
2019
- 2019-05-05 CN CN201920628504.6U patent/CN209949782U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108281609B (en) | Positive electrode plate with tab, preparation method thereof and lithium ion battery comprising positive electrode plate | |
| CN110504553A (en) | A kind of multilayer ultra-wide band wave-absorber that electrically lossy material is compound with magnetic material | |
| CN105450797B (en) | Cell phone rear cover | |
| CN109245325B (en) | Heat dissipation magnetism isolation adhesive tape and wireless charging power receiver | |
| CN213924617U (en) | Composite adhesive tape capable of shielding and absorbing electromagnetic waves | |
| CN209949782U (en) | Electromagnetic shielding sheet for wireless charging | |
| CN211199101U (en) | Heat-conducting wave-absorbing material | |
| CN209642408U (en) | A kind of good magnetic conduction thin slice of heat dissipation | |
| CN112735730A (en) | Wireless charging coil module and preparation method thereof | |
| CN208143717U (en) | Glued shielding tape and diaphragm and wireless charging every magnetic film and module | |
| CN218337024U (en) | Can realize inhaling anti-interference shielding film of ripples | |
| CN103337915A (en) | Flexible material perfectly receiving electromagnetic wave energy | |
| CN201504385U (en) | Electromagnetic wave radiation protector, mobile phone and computer | |
| CN210840545U (en) | Wave-absorbing shielding film with heat dissipation and conduction functions | |
| CN215819213U (en) | High heat conduction shielding structure | |
| CN110635083A (en) | Rapid heating battery module | |
| CN210157586U (en) | Composite electromagnetic wave absorbing plate for electronic equipment | |
| CN205646070U (en) | Heat radiation structure of soft package lithium -ion battery group | |
| CN213522887U (en) | Heat dissipation structure for 5G communication equipment | |
| CN211019853U (en) | Graphite heat and electricity conducting foam | |
| CN210443363U (en) | Magnetic conductive sheet for wireless charger | |
| CN208127036U (en) | A kind of metalizing polypropylene thin film capacitor | |
| CN111031776A (en) | Heat conduction wave-absorbing gasket | |
| CN211199100U (en) | Heat-insulation heat-conduction wave-absorbing material | |
| CN205864955U (en) | Buffering foam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |