CN108541208A - The preparation method of wireless charging electromagnetic shielding piece - Google Patents
The preparation method of wireless charging electromagnetic shielding piece Download PDFInfo
- Publication number
- CN108541208A CN108541208A CN201810377025.1A CN201810377025A CN108541208A CN 108541208 A CN108541208 A CN 108541208A CN 201810377025 A CN201810377025 A CN 201810377025A CN 108541208 A CN108541208 A CN 108541208A
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- magnetic sheet
- wireless charging
- electromagnetic shielding
- shielding piece
- preparation
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The skin wireless charging of the present invention preparation method of electromagnetic shielding piece, includes the following steps：1）Soft magnetic materials magnetic sheet is provided, the soft magnetic materials magnetic sheet is wound；2）The soft magnetic materials magnetic sheet after winding is heat-treated；3）Single side is carried out to the soft magnetic materials magnetic sheet after being heat-treated and covers no base rubber；4）By the step 2）Carry out it is two-sided cover no base rubber, then by step 3）Non- overlay film fit to the two-sided surface for covering no base rubber on one side, be stacked to successively after the required number of plies again to its integrally carry out laminating operation；5）Processing is patterned to the soft magnetic materials magnetic sheet positive and negative using roll-to-roll technique respectively, reaches required performance until confirming；The pattern area obtained after image conversion processing is 0.1 ~ 10mm2, and pattern interval is 0.1 ~ 50 μm.
Description
Technical field
The present invention relates to wireless charging technology and wireless charging material technical fields, specifically, its displaying is a kind of wireless
The preparation method of charging electromagnetic shielding piece.
Background technology
With economic and science and technology development, the development of wireless charging device is also increasingly rapider；
Derived from wireless power transmission technology, low-power wireless charging and high-power wireless charging two ways can be divided into.
Low-power wireless charging is frequently with induction, the Qi modes such as to charge to mobile phone, but in emerging electric vehicle
The induction type that wireless charging mode uses.Frequently with resonant mode, (most of electric vehicle charging uses this for high-power wireless charging
Mode) device of electricity consumption is transmitted its energy to by power supply unit (charger), which fills battery using the energy received
Electricity, and be provided for its own functioning simultaneously.
Due to transmitting energy between charger and power device with magnetic field, do not run wires between the two, therefore charge
Device and the device of electricity consumption can accomplish that no conductive junction point is exposed
Wireless charging device needs have preferable shield effectiveness to extraneous electromagnetic signals, to prevent external signal interference charging.
Therefore, it is necessary to provide a kind of wireless charging with the preparation method of electromagnetic shielding piece to solve the above problems.
Invention content
The object of the present invention is to provide a kind of wireless charging preparation methods of electromagnetic shielding piece.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of wireless charging preparation method of electromagnetic shielding piece, includes the following steps：
1）Soft magnetic materials magnetic sheet is provided, the soft magnetic materials magnetic sheet is wound；
2）The soft magnetic materials magnetic sheet after winding is heat-treated；
3）Single side is carried out to the soft magnetic materials magnetic sheet after being heat-treated and covers no base rubber；
4）By the step 2）Carry out it is two-sided cover no base rubber, then by step 3）Non- overlay film fit to two-sided cover no base rubber on one side
Surface, be stacked to successively after the required number of plies again to its integrally carry out laminating operation；
5）Processing is patterned to the soft magnetic materials magnetic sheet positive and negative using roll-to-roll technique respectively, reaches institute until confirming
Need performance；The pattern area obtained after image conversion processing is 0.1 ~ 10mm2, and pattern interval is 0.1 ~ 50 μm.
Further, the soft magnetic materials magnetic sheet is amorphous or nano crystal soft magnetic material band.
Further, the ingredient of the soft magnetic materials magnetic sheet is by least one of Fe, Co, Ni, Zr, Hf, Si, B, P gold
Belong to and at least one nonmetalloid forms.
Further, the thickness range of the soft magnetic materials magnetic sheet is 5 ~ 50 μm.
Further, when the soft magnetic materials magnetic sheet is amorphous soft magnetic material band, step 2）In, the step of heat treatment, wraps
It includes：350 ~ 380 DEG C are first warming up to, heat preservation then proceedes to be warming up to 400 ~ 500 DEG C, then keep the temperature, and the wherein heating-up time is 1 ~ 3 small
When, soaking time is 1 ~ 10 hour.
Further, when the soft magnetic materials magnetic sheet is nano crystal soft magnetic material band, step 2）In, the step of heat treatment
Including：First it is warming up to 300 ~ 450 DEG C, heat preservation then proceedes to be warming up to 450 ~ 510 DEG C, heat preservation, then continue to be warming up to 510 ~
580 DEG C, then keep the temperature, the wherein heating-up time is 1 ~ 3 hour, and soaking time is 1 ~ 10 hour.
Further, the step 2 is being carried out）While middle heat treatment, carry out adding transverse magnetic plus vertical magnetic field, magnetic of putting english
Field is not added with magnetic field processing.
Further, the step 3）In, adhesive process is covered to the soft magnetism material after being heat-treated using roll-to-roll
Expect that magnetic sheet carries out single-side coating, and double faced adhesive tape is using no base material glue.
Further, the step 4）Middle material need to first be bonded into the required number of plies.
Further, step 5）In, it further includes step to be patterned after operating：
5-1）It will carry out the structure obtained after the graphical operation to require to be punched out according to size, obtain desired size
Lamination magnetic sheet；
5-2）The lamination magnetic sheet is bonded with ferrite magnetic sheet, graphite flake and coil, obtains electromagnetic shielding piece.
Compared with prior art, the electromagnetic shielding piece of present invention preparation gained can effectively shield external magnetic field, ensure
Wireless charging effect.
Specific implementation mode
Please the present embodiment show the preparation method of wireless charging electromagnetic shielding piece a kind of：
Include the following steps：
1）Soft magnetic materials magnetic sheet is provided, the soft magnetic materials magnetic sheet is wound；
2）The soft magnetic materials magnetic sheet after winding is heat-treated；
3）Single side is carried out to the soft magnetic materials magnetic sheet after being heat-treated and covers no base rubber；
4）By the step 2）Carry out it is two-sided cover no base rubber, then by step 3）Non- overlay film fit to two-sided cover no base rubber on one side
Surface, be stacked to successively after the required number of plies again to its integrally carry out laminating operation；
5）Processing is patterned to the soft magnetic materials magnetic sheet positive and negative using roll-to-roll technique respectively, reaches institute until confirming
Need performance；The pattern area obtained after image conversion processing is 0.1 ~ 10mm2, and pattern interval is 0.1 ~ 50 μm.
In the present embodiment, the soft magnetic materials magnetic sheet is amorphous or nano crystal soft magnetic material band.
Meanwhile the soft magnetic materials magnetic sheet can be also set as in the present embodiment its ingredient by Fe, Co, Ni, Zr, Hf, Si,
B, at least one of P metals and at least one nonmetalloid composition.
The thickness range of the soft magnetic materials magnetic sheet is 5 ~ 50 μm.
When the soft magnetic materials magnetic sheet is amorphous soft magnetic material band, step 2）In, the step of heat treatment includes：First heat up
To 350 ~ 380 DEG C, heat preservation then proceedes to be warming up to 400 ~ 500 DEG C, then keep the temperature, and the wherein heating-up time is 1 ~ 3 hour, when heat preservation
Between be 1 ~ 10 hour.
When the soft magnetic materials magnetic sheet is nano crystal soft magnetic material band, step 2）In, the step of heat treatment includes：First rise
Temperature is to 300 ~ 450 DEG C, heat preservation, then proceedes to be warming up to 450 ~ 510 DEG C, heat preservation then continues to be warming up to 510 ~ 580 DEG C, then protect
Temperature, wherein heating-up time are 1 ~ 3 hour, and soaking time is 1 ~ 10 hour.
Carrying out the step 2）While middle heat treatment, carries out plus transverse magnetic plus vertical magnetic field, putting english magnetic field or is not added with
Magnetic field is handled.
The step 3）In, the soft magnetic materials magnetic sheet after being heat-treated is carried out using the roll-to-roll adhesive process that covers
Single-side coating, and double faced adhesive tape is using no base material glue.
The step 4）Middle material need to first be bonded into the required number of plies.
Step 5）In, it further includes step to be patterned after operating：
5-1）It will carry out the structure obtained after the graphical operation to require to be punched out according to size, obtain desired size
Lamination magnetic sheet；
5-2）The lamination magnetic sheet is bonded with ferrite magnetic sheet, graphite flake and coil, obtains electromagnetic shielding piece.
Compared with prior art, the electromagnetic shielding piece of present invention preparation gained can effectively shield external magnetic field, ensure
Wireless charging effect.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
It encloses.
Claims (10)
1. a kind of wireless charging preparation method of electromagnetic shielding piece, it is characterised in that：Include the following steps：
1) soft magnetic materials magnetic sheet is provided, the soft magnetic materials magnetic sheet is wound；
2) the soft magnetic materials magnetic sheet after winding is heat-treated；
3) single side is carried out to the soft magnetic materials magnetic sheet after being heat-treated and covers no base rubber；
4) by the step 2) carry out it is two-sided cover no base rubber, then the non-overlay film of step 3) is fitted on one side and two-sided covers no base rubber
Surface, be stacked to successively after the required number of plies again to its integrally carry out laminating operation；
5) processing is patterned to the soft magnetic materials magnetic sheet positive and negative using roll-to-roll technique respectively, reaches institute until confirming
Need performance；The pattern area obtained after image conversion processing is 0.1~10mm2, and pattern interval is 0.1~50 μm.
2. the wireless charging according to claim 1 preparation method of electromagnetic shielding piece, it is characterised in that：The soft magnetism material
Expect that magnetic sheet is amorphous or nano crystal soft magnetic material band.
3. the wireless charging according to claim 1 preparation method of electromagnetic shielding piece, it is characterised in that：The soft magnetism material
Expect that the ingredient of magnetic sheet is made of at least one of Fe, Co, Ni, Zr, Hf, Si, B, P metal and at least one nonmetalloid.
4. the wireless charging according to claim 2 or 3 preparation method of electromagnetic shielding piece, it is characterised in that：It is described soft
The thickness range of magnetic material magnetic sheet is 5~50 μm.
5. the wireless charging according to claim 2 preparation method of electromagnetic shielding piece, it is characterised in that：The soft magnetism material
When expecting that magnetic sheet is amorphous soft magnetic material band, in step 2), the step of heat treatment, includes：350~380 DEG C are first warming up to, is kept the temperature,
It then proceedes to be warming up to 400~500 DEG C, then keeps the temperature, the wherein heating-up time is 1~3 hour, and soaking time is 1~10 hour.
6. the wireless charging according to claim 2 preparation method of electromagnetic shielding piece, it is characterised in that：Further,
When the soft magnetic materials magnetic sheet is nano crystal soft magnetic material band, in step 2), the step of heat treatment, includes：First it is warming up to 300
~450 DEG C, heat preservation then proceedes to be warming up to 450~510 DEG C, and heat preservation then continues to be warming up to 510~580 DEG C, then keep the temperature,
The middle heating-up time is 1~3 hour, and soaking time is 1~10 hour.
7. the wireless charging according to claim 5 or 6 preparation method of electromagnetic shielding piece, it is characterised in that：Carry out
In the step 2) while heat treatment, carries out plus transverse magnetic plus vertical magnetic field, putting english magnetic field or is not added with magnetic field processing.
8. the wireless charging according to claim 7 preparation method of electromagnetic shielding piece, it is characterised in that：The step 3)
In, single-side coating, and double faced adhesive tape are carried out to the soft magnetic materials magnetic sheet after being heat-treated using the roll-to-roll adhesive process that covers
Using no base material glue.
9. the wireless charging according to claim 8 preparation method of electromagnetic shielding piece, it is characterised in that：The step 4)
Middle material need to first be bonded into the required number of plies.
10. the wireless charging according to claim 9 preparation method of electromagnetic shielding piece, it is characterised in that：In step 5),
It further includes step to be patterned after operating：
It will 5-1) carry out the structure obtained after the graphical operation to require to be punched out according to size, obtain the folded of desired size
Layer magnetic sheet；
The lamination magnetic sheet is bonded with ferrite magnetic sheet, graphite flake and coil 5-2), obtains electromagnetic shielding piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377025.1A CN108541208A (en) | 2018-04-25 | 2018-04-25 | The preparation method of wireless charging electromagnetic shielding piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377025.1A CN108541208A (en) | 2018-04-25 | 2018-04-25 | The preparation method of wireless charging electromagnetic shielding piece |
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| Publication Number | Publication Date |
|---|---|
| CN108541208A true CN108541208A (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810377025.1A Pending CN108541208A (en) | 2018-04-25 | 2018-04-25 | The preparation method of wireless charging electromagnetic shielding piece |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545535A (en) * | 2018-10-18 | 2019-03-29 | 上海万兹新材料科技有限公司 | A kind of preparation method of the magnetic screen piece on wireless charging and NFC |
| CN109801783A (en) * | 2019-02-15 | 2019-05-24 | 信维通信（江苏）有限公司 | A kind of preparation method of the amorphous antifreeze plate for wireless charging |
| CN110446409A (en) * | 2019-07-30 | 2019-11-12 | 苏州威斯东山电子技术有限公司 | The nanocrystalline electromagnetic shielding material and preparation method thereof of automobile high-power wireless charging |
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| CN205454369U (en) * | 2015-12-24 | 2016-08-10 | 上海光线新材料科技有限公司 | Electromagnetic shield piece is used to wireless charging |
| CN106912188A (en) * | 2015-12-22 | 2017-06-30 | 上海光线新材料科技有限公司 | A kind of wireless charging preparation method and electromagnetic shielding piece for being electromagnetically shielded piece |
| CN106916928A (en) * | 2015-12-24 | 2017-07-04 | 上海光线新材料科技有限公司 | A kind of amorphous or the heat treatment method of nanocrystalline material for magnetic screen piece |
| CN106922111A (en) * | 2015-12-24 | 2017-07-04 | 上海光线新材料科技有限公司 | A kind of nanometer crystal alloy, the wireless charging preparation method and electromagnetic shielding piece for being electromagnetically shielded piece |
| CN107610923A (en) * | 2017-08-18 | 2018-01-19 | 上海蓝沛新材料科技股份有限公司 | A kind of wireless charging magnetic conduction sheet preparation technology |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106912188A (en) * | 2015-12-22 | 2017-06-30 | 上海光线新材料科技有限公司 | A kind of wireless charging preparation method and electromagnetic shielding piece for being electromagnetically shielded piece |
| CN205454369U (en) * | 2015-12-24 | 2016-08-10 | 上海光线新材料科技有限公司 | Electromagnetic shield piece is used to wireless charging |
| CN106916928A (en) * | 2015-12-24 | 2017-07-04 | 上海光线新材料科技有限公司 | A kind of amorphous or the heat treatment method of nanocrystalline material for magnetic screen piece |
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| CN107610923A (en) * | 2017-08-18 | 2018-01-19 | 上海蓝沛新材料科技股份有限公司 | A kind of wireless charging magnetic conduction sheet preparation technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545535A (en) * | 2018-10-18 | 2019-03-29 | 上海万兹新材料科技有限公司 | A kind of preparation method of the magnetic screen piece on wireless charging and NFC |
| CN109801783A (en) * | 2019-02-15 | 2019-05-24 | 信维通信（江苏）有限公司 | A kind of preparation method of the amorphous antifreeze plate for wireless charging |
| CN110446409A (en) * | 2019-07-30 | 2019-11-12 | 苏州威斯东山电子技术有限公司 | The nanocrystalline electromagnetic shielding material and preparation method thereof of automobile high-power wireless charging |
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Application publication date: 20180914 |
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