CN208509531U - A kind of magnetic shield piece - Google Patents
A kind of magnetic shield piece Download PDFInfo
- Publication number
- CN208509531U CN208509531U CN201821248595.2U CN201821248595U CN208509531U CN 208509531 U CN208509531 U CN 208509531U CN 201821248595 U CN201821248595 U CN 201821248595U CN 208509531 U CN208509531 U CN 208509531U
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- CN
- China
- Prior art keywords
- protective film
- magnetic
- piece
- magnetic shield
- adhesive
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- 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.)
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Abstract
It include: shielded layer the utility model discloses a kind of magnetic shield piece, the magnetic piece including the processing of at least one layer of fragmentation；First protective film and the second protective film are covered each by the two sides that the shielded layer is arranged in, and the shielded layer is in the range of structures of first protective film and the second protective film；The part that first protective film and the second protective film exceed the shielding layer region is provided with the adhesive for encapsulating the shielded layer, and the adhesive for bonding FPC coil is provided on the first outer protective film and/or second protective film beyond shielding layer region；A FPC coil is provided on first protective film or second protective film; the FPC coil bonding is arranged on the adhesive on first protective film or second protective film; without glue between the FPC coil and the shielding layer region, the two directly fits setting, to reduce integral thickness.
Description
Technical field
The utility model relates to non-contact type wireless charging fields, more particularly to one kind to be conducive to heat dissipation, with FPC fitting coils
The magnetic shield piece of fixed thickness is not increased.
Background technique
Wireless charging is divided into three classes according to the difference of the frequency range used: the electromagnetic induction manifold type of low frequency, the electricity of medium-high frequency
The electromagnetic radiation formula of magnetic resonance and high frequency.The electromagnetic induction manifold type of 10-500KHz is common wireless charging currently on the market
Power technology.And the critical component in wireless charging is exactly the magnetic shield piece received in component.
To reach higher charge efficiency, need to increase the charge power of equipment, the magnetic line of force generated by coil can be
The inside of substrate generates biggish eddy current, causes wireless device to generate heat, if heat can not discharge in time, working long hours can be led
Cause equipment that various defects occur.The structure of traditional magnetic shielding piece includes passing through adhesive for multi-layered magnetic in the two sides of magnetic piece
Piece sticks together, and without thermally conductive process layer, causes excess calories not shed as early as possible, be easy to cause equipment deficiency.
Utility model content
The purpose of the utility model is to provide a kind of magnetic shield piece, with solve in the prior art magnetic piece because being vortexed heat production
Cannot quickly shed cause equipment occur defect the problem of.On the one hand, glue is non-thermal good conductor, because of cancellation outermost
One layer of glue between FPC coil and magnetic shield lamella improves the problem of mould group radiates；On the other hand, entire mould is reduced
The thickness of group.
To achieve the above object, the utility model is the following technical schemes are provided: a kind of magnetic shield piece, which is characterized in that
Include:
Shielded layer, the magnetic piece including the processing of at least one layer of fragmentation；
First protective film and the second protective film are covered each by the two sides that the shielded layer is arranged in, and the shielded layer
In the range of structures of first protective film and the second protective film；
First protective film and the second protective film are provided with described for encapsulating beyond the part of the shielding layer region
The adhesive of shielded layer, and be arranged on the first outer protective film and/or second protective film beyond shielding layer region
There is the adhesive for bonding FPC coil；
A FPC coil is provided on first protective film or second protective film, the FPC coil bonding setting exists
On adhesive on first protective film or second protective film, nothing between the FPC coil and the shielding layer region
Glue, the two directly fit setting, to reduce integral thickness.
In certain embodiments, 1-10 layers of magnetic piece are provided in the shielded layer.
In certain embodiments, when magnetic piece quantity is greater than 1, adhesive progress is provided between the magnetic piece
Connection.
In certain embodiments, the magnetic piece is made of soft magnetic material, every layer of magnetic piece with a thickness of
15um to 25um.
In certain embodiments, the magnetic piece is the amorphous alloy or nanometer of iron class or cobalt class through Overheating Treatment
Peritectic alloy.
In certain embodiments, first protective film and second protective film are organic protective film.
It is had the advantages that compared with prior art by using above-mentioned technical proposal
Shielding piece in this programme includes the first protective film, the second protective film and the shielding being arranged between two side forms
Layer, wherein the first protective film and the second protective film are all larger than shielded layer, it will by setting adhesive in the part for being greater than shielded layer
It is integral that shielded layer is encapsulated shape, is directly to contact due to shielded layer and the first protective film, with the second protective film, intermediate
It is not provided with the structure sheafs such as glue, it is thus possible to effectively reduce whole thickness, be conducive to do equipment thin.
Due in this programme the first protective film and the second protective film be all larger than shielded layer, it is logical in the part for being greater than shielded layer
It crosses setting adhesive and shielded layer is encapsulated to shape is integral, therefore protective film does not have the area thickness of shielded layer to be less than shielding
The region of layer, adhesive is arranged in the place of thinner thickness can effective fixing line for bonding the structures such as FPC coil
The structures such as circle, and will not additionally increase thickness, it is pushed further into equipment and does thin trend.
This programme improves simultaneously in the inside bonding mode of shielded layer and external two aspect of fixed coil locations of structures,
Separate individually designed magnetic piece with tradition has apparent advantageous thinness compared with the scheme of coil, is conducive to save in equipment
Space.
Detailed description of the invention
Fig. 1 is the production flow diagram of the utility model magnetic shield piece；
Fig. 2 is the structural schematic diagram of the part protective film single side glue beyond magnetic panel region；
Fig. 3 is magnetic shield chip architecture schematic diagram after the utility model Fig. 2 fragmentation；
Fig. 4 is that the utility model Fig. 2 pastes the structural schematic diagram after FPC coil；
Fig. 5 is the structural schematic diagram of the part protective film sticking double faced adhesive tape beyond magnetic panel region；
Fig. 6 is magnetic shield chip architecture schematic diagram after the utility model Fig. 5 fragmentation；
Fig. 7 is that the utility model Fig. 5 pastes the structural schematic diagram after FPC coil.
Label declaration
The first protective film of 11-, the second protective film of 12-,
Single-sided adhesive, 23/24- double-sided adhesive,
The first magnetic piece of 31-, the second magnetic piece of 32-, 33- third magnetic piece, the 4th magnetic piece of 34-,
The first double-sided adhesive of 41-, the second double-sided adhesive of 42-, 43- third double-sided adhesive,
Double-sided adhesive, 61-FPC coil.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, in conjunction with following explanation,
The advantages of the utility model and feature will be apparent from, it should be noted that attached drawing is all made of very simplified form and non-essence
Quasi- ratio, only to facilitate the apparent purpose for aiding in illustrating the present embodiment.
The production process of magnetic shield piece is as shown in Figure 1.Firstly, the amorphous alloy of iron class uses the fast rapid hardening of melt spinning
Gu legal system causes certain thickness iron class amorphous alloy strips, and needs to be cut into certain size according to product.Then exist
The heat treatment carried out 1-2 hours under atmosphere protection and at a temperature of 200 DEG C -600 DEG C makes Nano-Crystallization of Amorphous Alloys, to increase material
Magnetic conductivity, improve shielding properties.If supplied materials has been that nano-crystallization is good, performance meets product requirement, can also ignore heat
Processing operation.Enter magnetic shield piece lamination bonding phase below: being bonded between internal magnetization piece with double faced adhesive tape first；Then
The outside of magnetic shield panel region is covered by the first protective film with glue and the second protective film with glue, and first protects
The area of cuticula and the second protective film exceeds the area of magnetic shield piece, and the region beyond magnetic piece is by one side glue or two-sided gluing
It closes, the production of single layer multi-layered magnetic shielding piece is completed in lamination.The single-layer or multi-layer magnetic flakes for being laminated organic protective film are sent
Enter metal roll squeezer, roll-in parameter is arranged according to structure level number and general thickness in shielding piece, it will complete magnetic piece from level to level
Fragmentation.Finally, needing to cut or strike out specific shape according to product completes the production of magnetic shield piece.
Embodiment 1
Referring to Fig. 2, providing multi-layered magnetic piece in the present embodiment and being used in the part protective film beyond magnetic panel region
Single side glue, to be described in further details, the magnetic piece quantity in the present embodiment is illustrated for four layers, selects length
610mm, wide 460mm, with a thickness of the single layer amorphous alloy Fe73.5Si 13.5B9Nb3Cu1 band of 18um, tear off upper surface and
Then the glue and PET protection film of lower surface make under N2 atmosphere protection with the heat treatment for carrying out 1 hour at a temperature of 300 DEG C non-
Peritectic alloy nano-crystallization.Enter magnetic shield piece lamination bonding phase below: first the first magnetic piece 31, second after heat treatment
Magnetic piece 32, third magnetic piece 33 and the 4th magnetic piece are between any two respectively with the first double faced adhesive tape 41, the second double faced adhesive tape 42
It is glued together with third double faced adhesive tape 43；Then respectively in the outside of the first magnetic piece 31 and the outer side covering of the 4th magnetic piece 34
First protective film 11 and the second protective film 12.The first protective film 11 and the second protective film 12 in the region beyond magnetic shield piece
Between bonded by single-sided adhesive 21/22；Four layers of magnetic flakes for being laminated organic protective film are finally sent into metal roll squeezer,
Set roll-in parameter according to integral thickness, will complete magnetic piece fragmentation from level to level, the interlayer knot after fragmentation processing
Structure is as shown in Figure 3.Finally, needing to cut or strike out specific shape according to product completes the production of magnetic shield piece.Also, exceed
First protective film 11 in the region of magnetic piece or the outside of the second protective film 12 bond FPC coil 61 with double-sided adhesive 51/52, in magnetic
Property shielding piece and FPC coil 61 between there is no glue, the two directly contacts, and can reduce between magnetic shield piece and FPC coil 61
Distance, to reduce whole thickness, bonding divides the structure after FPC coil as shown in Figure 4.
Embodiment 2
Referring to Fig. 5, providing multi-layered magnetic piece in the present embodiment and being used in the part protective film beyond magnetic panel region
Sticking double faced adhesive tape, to be described in further details, the magnetic piece quantity in the present embodiment is illustrated for four layers, selects length
610mm, wide 460mm, with a thickness of the single layer amorphous alloy Fe73.5Si 13.5B9Nb3Cu1 band of 18um, tear off upper surface and
Then the glue and PET protection film of lower surface make under N2 atmosphere protection with the heat treatment for carrying out 1 hour at a temperature of 300 DEG C non-
Peritectic alloy nano-crystallization.Enter magnetic shield piece lamination bonding phase below: first the first magnetic piece 31, second after heat treatment
Magnetic piece 32, third magnetic piece 33 and the 4th magnetic piece are between any two respectively with the first double faced adhesive tape 41, the second double faced adhesive tape 42
It is glued together with third double faced adhesive tape 43；Then respectively in the outside of the first magnetic piece 31 and the outer side covering of the 4th magnetic piece 34
First protective film 11 and the second protective film 12.The first protective film 11 and the second protective film 12 in the region beyond magnetic shield piece
Between bonded by double-sided adhesive 23/24；Four layers of magnetic flakes for being laminated organic protective film are finally sent into metal roll squeezer,
Set roll-in parameter, will complete magnetic piece fragmentation from level to level, the interlayer structure after fragmentation processing is as shown in Figure 6.
Finally, needing to cut or strike out specific shape according to product completes the production of magnetic shield piece.Also, exceed the region of magnetic piece
The first protective film 11 or the outside of the second protective film 12 bond FPC coil 61 with double-sided adhesive 51/52, in magnetic shield piece and
There is no glue between FPC coil 61, the two directly contacts, and the distance between magnetic shield piece and FPC coil 61 can be reduced, to subtract
Small whole thickness, bonding divide the structure after FPC coil 61 as shown in Figure 7 as shown in Figure 4.
By the various embodiments described above it is found that shielding piece in this programme include the first protective film, the second protective film and
Shielded layer between two side forms is set, wherein the first protective film and the second protective film are all larger than shielded layer, is being greater than shielded layer
By setting adhesive shielded layer to be encapsulated shape integral for part, protected due to shielded layer and the first protection, with second
Cuticula is direct contact, and centre is not provided with the structure sheafs such as glue, it is thus possible to effectively reduce whole thickness, be conducive to set
It is thin for doing.
Due in this programme the first protective film and the second protective film be all larger than shielded layer, it is logical in the part for being greater than shielded layer
It crosses setting adhesive and shielded layer is encapsulated to shape is integral, therefore protective film does not have the area thickness of shielded layer to be less than shielding
The region of layer, adhesive is arranged in the place of thinner thickness can effective fixing line for bonding the structures such as FPC coil
The structures such as circle, and will not additionally increase thickness, it is pushed further into equipment and does thin trend.
This programme improves simultaneously in the inside bonding mode of shielded layer and external two aspect of fixed coil locations of structures,
Separate individually designed magnetic piece with tradition has apparent advantageous thinness compared with the scheme of coil, is conducive to save in equipment
Space.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to
Above embodiment.Even if to the utility model, various changes can be made, if these variations belong to the utility model claims
And its within the scope of equivalent technologies, then still fall among the protection scope of the utility model.
Claims (6)
1. a kind of magnetic shield piece characterized by comprising
Shielded layer, the magnetic piece including the processing of at least one layer of fragmentation；
First protective film and the second protective film are covered each by the two sides that the shielded layer is arranged in, and the shielded layer is in institute
In the range of structures for stating the first protective film and the second protective film；
First protective film and the second protective film are provided with beyond the part of the shielding layer region for encapsulating the shielding
Layer adhesive, and beyond shielding layer region the first outer protective film and/or second protective film on be arranged it is useful
In the adhesive of bonding FPC coil；
A FPC coil is provided on first protective film or second protective film, the FPC coil bonding is arranged described
On adhesive on first protective film or second protective film, without glue between the FPC coil and the shielding layer region, two
Person directly fits setting, to reduce integral thickness.
2. a kind of magnetic shield piece according to claim 1, which is characterized in that be provided with 1-10 layers in the shielded layer
Magnetic piece.
3. a kind of magnetic shield piece according to claim 2, which is characterized in that when the magnetic piece quantity is greater than 1, institute
It states and is provided with adhesive between magnetic piece and is attached.
4. a kind of magnetic shield piece according to claim 3, which is characterized in that the magnetic piece is by soft magnetic material group
At, every layer of magnetic piece with a thickness of 15um to 25um.
5. a kind of magnetic shield piece according to claim 2, which is characterized in that the magnetic piece is the iron through Overheating Treatment
The amorphous alloy or nanometer crystal alloy of class or cobalt class.
6. a kind of magnetic shield piece according to claim 1, which is characterized in that first protective film and described second is protected
Cuticula is organic protective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821248595.2U CN208509531U (en) | 2018-08-03 | 2018-08-03 | A kind of magnetic shield piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821248595.2U CN208509531U (en) | 2018-08-03 | 2018-08-03 | A kind of magnetic shield piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208509531U true CN208509531U (en) | 2019-02-15 |
Family
ID=65299564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821248595.2U Expired - Fee Related CN208509531U (en) | 2018-08-03 | 2018-08-03 | A kind of magnetic shield piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208509531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431239A (en) * | 2020-04-20 | 2020-07-17 | 蓝沛光线（上海）电子科技有限公司 | Wireless charging module and preparation method thereof |
-
2018
- 2018-08-03 CN CN201821248595.2U patent/CN208509531U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431239A (en) * | 2020-04-20 | 2020-07-17 | 蓝沛光线（上海）电子科技有限公司 | Wireless charging module and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 Termination date: 20200803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |