CN208015459U - A kind of wireless charging applies compound antifreeze plate - Google Patents
A kind of wireless charging applies compound antifreeze plate Download PDFInfo
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- CN208015459U CN208015459U CN201820383301.0U CN201820383301U CN208015459U CN 208015459 U CN208015459 U CN 208015459U CN 201820383301 U CN201820383301 U CN 201820383301U CN 208015459 U CN208015459 U CN 208015459U
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- wireless charging
- antifreeze plate
- compound antifreeze
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Abstract
The utility model discloses a kind of wireless chargings to apply compound antifreeze plate, including：Polymer base material；Shielded layer is coated in a surface of the polymer base material；Layers of copper is deposited on the outer surface of the shielded layer；Graphite linings are pasted onto the outer surface of the layers of copper.Wireless charging provided by the utility model is had excellent performance using compound antifreeze plate with heat conduction and heat radiation, and charge efficiency is high, and magnetic loss is few, and temperature rises few advantage.
Description
Technical field
The utility model is related to the antifreeze plate technical fields of wireless charging application, more specifically, the utility model is related to
A kind of wireless charging applies compound antifreeze plate.
Background technology
Wireless charging technology, English name are Wireless charging technology, also known as induction charging, non-
Contact charges, and is derived from a kind of New-type charge technology of wireless power conveying technology generation.Wireless charging technology utilizes near field
Induction, being transmitted its energy to by wireless charger needs charging equipment, which is charged the battery using the energy received,
And provide energy for the running of equipment itself.Due to transmitting energy by inductive coupling between wireless charger and charging equipment
Amount, there is no need to electric wire connections.
Wireless charging technical principle, the alternating current of primary coil certain frequency are produced by electromagnetic induction in secondary coil
Raw certain electric current, to which energy is transferred to receiving terminal from transmission end.Presently the most common charging solution just uses
Electromagnetic induction, in fact, electromagnetic induction solution has no too many mystique, China domestic BYD in technology realization
Company has just used electromagnetic induction technology early in the non-contact induction type charger patent of in December, 2005 application, and existing three
Wireless charging field is all added in star, apple.It is 1-3W to be generally worn by plant capacity, and smart mobile phone platen power is 5-10W, notes
This computer and electric tool power are 30-150W, and intelligent appliance power is 200-2KW
There are five types of the wireless charging standards of mainstream technology mainstream：Qi standards, Power Matters Alliance (PMA) marks
Standard, Alliance for Wireless Power (A4WP) standard, iNPOFi technologies, Wi-Po technologies.Form three at present
Larger alliance organization WPC, A4WP of a influence power and PMA.Respectively possess the up to dozens or even hundreds of company of member.Wherein
WPC and PMA is dedicated near radio charging technique, the familiar mobile phone wireless charging such as us.And the technology of A4WP is fixed
Position is in remote-wireless energy transmission, it is desirable to be able to realize tens centimetres even transmission range of several meters of grades.
Wireless charging technology developed recently is rapid, has been widely applied to intelligent wearable device (wrist-watch), intelligence at present
The fields such as mobile phone plane plate, radio telephone, electric vehicle.But many technical barriers, such as charge efficiency are also encountered in evolution
It is low, of high cost, charging limitation it is larger, charging temperature increase.
It will produce alternating electromagnetic field during wireless charging, and when alternating electromagnetic field encounters metal, will produce electronics is vortexed,
Thermal energy is generated on metal, causes efficiency of transmission relatively low, waste of energy, if rechargeable battery interior metal plate is by the magnetic field
It influences, the eddy-current loss of generation can cause battery hot, set off an explosion or fire is dangerous, and the magnetic field can interfere surrounding device
Part influences the normal work of entire charger.Therefore shielding material or absorbing material must be used on technological layer, to hinder
Gear the magnetic line of force leak, to ensure the safe and efficient work of entire charging system, in practical applications transmitting terminal and receive end line
Circle is all placed on shielding on piece, to reach raising efficiency, reduces the purpose of interference.
With the liter of the progress frequency of use of the increase (be now 5-15W between) and technology of the charge power of smart mobile phone
High such as 325KHZ, mr techniques (6.78MHZ).Conventional technique is the ferrite and conventional making using a high permeability
Amorphous nano-crystalline do shielding material.Charge frequency range in Qi rechargeable standards is between 100-200KHz, in small-power
The use of the effect and conventional amorphous nano-crystalline, ferrite difference of antifreeze plate is not very big, this technique makes under 10-15W power
The with obvious effects of antifreeze plate be better than ferrite, it is conventional to make amorphous nano-crystalline.Market carries wireless charging mobile phone, all adopts substantially
It is already used with amorphous or nanocrystalline shielding piece, Samsung, apple also attempts to shield piece using amorphous nano-crystalline now.
With charge requirement power increase and charge new technology generation, charge efficiency raising, Wen Sheng little etc. always with
Come be all wireless charging industry pursue target.
Utility model content
One purpose of the utility model is to solve at least the above, and provide the advantages of at least will be described later.
There is provided a kind of wireless chargings to apply compound antifreeze plate there are one purpose for the utility model, has low whirlpool
Stream loss, excellent charge efficiency, Wen Sheng smaller and excellent heat conduction and heat radiation performance.
To achieve the goals above, a kind of wireless charging of the utility model offer applies compound antifreeze plate, including：
Polymer base material；
Shielded layer is coated in a surface of the polymer base material；
Layers of copper is deposited on the outer surface of the shielded layer；
Graphite linings are pasted onto the outer surface of the layers of copper.
Preferably, the thickness of the shielded layer is 10 μm~600 μm.
Preferably, the thickness of the shielded layer is 30 μm~500 μm.
Preferably, the thickness of the layers of copper is 2 μm~3 μm.
Preferably, the thickness of the polymer base material is 3 μm~50 μm.
Preferably, the polymer base material is PET one side glues or PI one side glues.
Preferably, double faced adhesive tape is equipped between the layers of copper and the graphite linings.
Preferably, the wireless charging application composite shielding piece further includes：
PET film is sticked in the outer surface of the graphite linings；
Release film is sticked in the outer surface of the polymer base material.
The utility model includes at least following advantageous effect：
1, a kind of wireless charging described in the utility model has excellent electromagnetic performance, magnetic loss using compound antifreeze plate
It is small, quality factor are high, surface resistance is big, it is excellent that eddy-current loss is small, charge efficiency is high, energy transfer losses are small and stability is good
Point.
2, a kind of wireless charging described in the utility model is dissipated using the graphite linings in compound antifreeze plate in water horizontal direction
Heat, layers of copper radiate in the vertical direction, it is achieved that excellent heat conduction and heat radiation performance.
3, a kind of thickness of wireless charging application composite shielding piece described in the utility model is thin, use scope is wide.
Part is illustrated to embody by the further advantage, target and feature of the utility model by following, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the structural schematic diagram that wireless charging described in the utility model applies compound antifreeze plate.
Specific implementation mode
Below in conjunction with the accompanying drawings and embodiment is described in further detail the utility model, to enable people in the art
Member can implement according to this with reference to specification word.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein are not precluded one or more
The presence or addition of a other elements or combinations thereof.
As shown in Figure 1, the utility model, which provides a kind of wireless charging, applies compound antifreeze plate, including：
Polymer base material 1；
Shielded layer 2 is coated in a surface of the polymer base material 1；
Layers of copper 3 is deposited on the outer surface of the shielded layer 2；
Graphite linings 4 are pasted onto the outer surface of the layers of copper 3.
Further, the thickness of the shielded layer 2 is 10 μm~600 μm.Preferably, the thickness of the shielded layer 2 is 30 μ
M~500 μm.
Further, the thickness of the layers of copper 3 is 2 μm~3 μm.
The thickness of the polymer base material 1 is 3 μm~50 μm.The polymer base material 1 is PET one side glues or PI single sides
Glue.
Further, double faced adhesive tape 5 is equipped between the layers of copper 3 and the graphite linings 4.
Further, the wireless charging application composite shielding piece further includes：
PET film 6 is sticked in the outer surface of the graphite linings 4；Release film 7 is sticked in the polymer base material 1
Outer surface.
Wireless charging described in the utility model is using the preparation process of compound antifreeze plate：
The soft magnetic materials band of coiling is placed on and adds magnetic field or is not heat-treated plus in the heat-treatment furnace in magnetic field；It is soft
Magnetic ribbon of material is Fe-based amorphous alloy, iron-base nanometer crystal alloy, cobalt base amorphous alloy or cobalt-based nanometer crystal alloy；The iron
Base noncrystal alloy and cobalt base amorphous alloy heat treatment temperature are 380~520 DEG C, keep the temperature 30~120min；The iron based nano crystal
Alloy and cobalt-based nanometer crystal alloy heat treatment temperature are 480~650 DEG C, keep the temperature 30~120min.
The soft magnetic materials band after heat treatment is subjected to the powder that ball mill crushing is certain size using ball mill, powder
Size is 100nm~80 μm, and shape is spherical shape, dendroid, sheet, flakes etc..Using oxides such as aerosils or
Person's coupling agent wraps up powder；
Powder after package is mixed with resin adhesive, functional powder, so that it is uniformly dispersed by three-roller,
Obtain the slurry that solid content is 65%-96%；Powder after package：Resin adhesive：The mass percent of functional powder is
(60-90%)：(5-20%)：(0-30%), solid content preferably 70%~94%；The resin adhesive include epoxy resin,
It is one or more than one kinds of in phenolic resin, polyurethane, methyl methacrylate, methacrylic acid, the resin adhesive
Solid content be 20%~40%；Functional powder for metal oxide and photosensitive silver powder by mixing, the metal oxidation
Object is di-iron trioxide, ferroso-ferric oxide or zinc oxide；
Using coating process or printing technology will surface of the slurry coated in polymer base material, obtain coating thickness be 10~
600 μm of shielded layer；
So that the photosensitive silver powder in functional powder is floated on the surface of shielded layer by light irradiation, resets baking process
Temperature is 90-120 DEG C, and heat preservation 40-60min makes silver powder be distributed to form micro conductive layer with evaporation of solvent；
By being electrodeposited in the copper-depositing on surface layer of shielded layer, thickness is 2~3 μm, using double faced adhesive tape on the surface of layers of copper
Graphite linings are pasted, compound antifreeze plate is formed.
The thickness effect of the solid content of shielded layer and shielded layer charge efficiency and energy loss in the utility model.And it is right
30 kinds of compound antifreeze plates have carried out performance test.
Shielding thickness and shielded layer solid content parameter in 1.30 kinds of compound antifreeze plates of table
The performance for the compound antifreeze plate that 2. shielding thickness of table is identical, solid content is different
| Case | Solid content (%) | Shielding thickness (μm) | Inductance (uH) | Component RS (m Ω) |
| Example 2 | 60 | 35 | 11.880 | 201.01 |
| Example 7 | 70 | 35 | 12.351 | 199.09 |
| Example 12 | 80 | 35 | 12.398 | 184.11 |
| Example 17 | 85 | 35 | 12.452 | 182.93 |
| Example 22 | 90 | 35 | 12.4680 | 177.15 |
| Example 27 | 95 | 35 | 12.478 | 198.00 |
It can be seen from Table 2 that increasing with solid content, inductance also becomes larger, and the impedance value of component is from becoming smaller greatly
Increase again.
The charge efficiency for the compound antifreeze plate that 3. shielding thickness of table is identical, solid content is different compares
In table 3, the thickness of shielded layer is 40 μm, and the different compound antifreeze plate of solid content is compared with traditional ferrite, is filled
The minimum example 22 of electrical efficiency is all ferritic more efficient than tradition.Illustrate that the compound antifreeze plate of the utility model is better than conventional iron
Oxysome magnetic property, shielding thickness under the same conditions, charge efficiency highest when solid content is between 65%-96%.Preferentially select
Select 70%-94%.
The performance for the compound antifreeze plate that 4. solid content of table is identical, shielding thickness is different
| Case | Solid content (%) | Shielding thickness (μm) | Inductance (μ H) | Component RS (m Ω) |
| Example 11 | 80 | 10 | 12.083 | 211.01 |
| Example 12 | 80 | 40 | 12.376 | 182.09 |
| Example 13 | 80 | 60 | 12.562 | 182.11 |
| Example 14 | 80 | 100 | 12.787 | 179.93 |
| Example 15 | 80 | 500 | 13.02 | 175.15 |
In table 4, solid content is 80%, and the thickness of shielded layer is different, it can be seen that with the increase of shielding thickness,
Inductance gradually increases, and magnetic conductivity can also increase, and component RS values become smaller.
The charge efficiency for the compound antifreeze plate that 5. solid content of table is identical, shielding thickness is different
Table 5 is the different compound antifreeze plate of shielding thickness and traditional ferrite charge efficiency under the conditions of solid content 80%
Comparison is compared with ferrite is passed, and the minimum example of charge efficiency is all higher than traditional efficiency.Illustrate that ferrite relative loss factor is larger and
And ferrite thermal diffusivity is poor, causes charge efficiency relatively low, under the conditions of identical solid content, shielding thickness is 10-600 μm of efficiency
It is higher, preferentially choose 40-500 μm.
6. compound antifreeze plate of table rises with ferritic temperature and compares
Comparing in length and breadth in summary can obtain, the solid content 70%~94% of slurry and the thickness of shielded layer are 30~500 μm
When, charge efficiency highest.In table 6, under identical wireless charging operating condition, the temperature liter of compound antifreeze plate is smaller than ferrite
7~8 DEG C.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (8)
1. a kind of wireless charging applies compound antifreeze plate, which is characterized in that including：
Polymer base material；
Shielded layer is coated in a surface of the polymer base material；
Layers of copper is deposited on the outer surface of the shielded layer；
Graphite linings are pasted onto the outer surface of the layers of copper.
2. a kind of wireless charging according to claim 1 applies compound antifreeze plate, which is characterized in that the thickness of the shielded layer
Degree is 10 μm~600 μm.
3. a kind of wireless charging according to claim 2 applies compound antifreeze plate, which is characterized in that the thickness of the shielded layer
Degree is 30 μm~500 μm.
4. a kind of wireless charging according to claim 1 applies compound antifreeze plate, which is characterized in that the thickness of the layers of copper
It is 2 μm~3 μm.
5. a kind of wireless charging according to claim 1 applies compound antifreeze plate, which is characterized in that the polymer base material
Thickness be 3 μm~50 μm.
6. a kind of wireless charging according to claim 1 applies compound antifreeze plate, which is characterized in that the polymer base material
For PET one side glues or PI one side glues.
7. a kind of wireless charging according to claim 1 apply compound antifreeze plate, which is characterized in that the layers of copper with it is described
Double faced adhesive tape is equipped between graphite linings.
8. a kind of wireless charging according to claim 1 applies compound antifreeze plate, which is characterized in that further include：
PET film is sticked in the outer surface of the graphite linings；
Release film is sticked in the outer surface of the polymer base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820383301.0U CN208015459U (en) | 2018-03-20 | 2018-03-20 | A kind of wireless charging applies compound antifreeze plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820383301.0U CN208015459U (en) | 2018-03-20 | 2018-03-20 | A kind of wireless charging applies compound antifreeze plate |
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| Publication Number | Publication Date |
|---|---|
| CN208015459U true CN208015459U (en) | 2018-10-26 |
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ID=63890100
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820383301.0U Active CN208015459U (en) | 2018-03-20 | 2018-03-20 | A kind of wireless charging applies compound antifreeze plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415952A (en) * | 2019-07-25 | 2019-11-05 | 东莞市鸿亿导热材料有限公司 | A kind of wireless charging heat radiating type magnetic conduction sheet and preparation method thereof |
-
2018
- 2018-03-20 CN CN201820383301.0U patent/CN208015459U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415952A (en) * | 2019-07-25 | 2019-11-05 | 东莞市鸿亿导热材料有限公司 | A kind of wireless charging heat radiating type magnetic conduction sheet and preparation method thereof |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201208 Address after: 578-1 Yanxin Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: Wuxi lanpei New Material Technology Co., Ltd Address before: 201500 3, Tiangong Road, Jinshan Industrial Area, Jinshan District, Shanghai, 857 Patentee before: LANPEI GUANGXIAN (SHANGHAI) ELECTRONIC TECHNOLOGY Co.,Ltd. |