CN109102998A - A kind of diskette and its preparation method and application - Google Patents
A kind of diskette and its preparation method and application Download PDFInfo
- Publication number
- CN109102998A CN109102998A CN201810834357.8A CN201810834357A CN109102998A CN 109102998 A CN109102998 A CN 109102998A CN 201810834357 A CN201810834357 A CN 201810834357A CN 109102998 A CN109102998 A CN 109102998A
- Authority
- CN
- China
- Prior art keywords
- adhesive layer
- layer
- band
- film
- diskette
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
-
- 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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F2027/348—Preventing eddy currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Manufacturing & Machinery (AREA)
- Adhesive Tapes (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention discloses a kind of diskettes and its preparation method and application.Diskette provided by the invention includes: magnetically soft alloy layer; protective film and release film; magnetically soft alloy layer includes at least one layer of soft magnetic alloy sheet, and adhesive layer is equipped between release film and magnetically soft alloy layer and between soft magnetic alloy sheet, contains the sliver unit gone out by crack segmentation in soft magnetic alloy sheet.The preparation method include: 1) strip coil around, heat treatment, coiled material open；2) the first protective film and the first release film are pasted, the second adhesive layer is pasted on the first release film, the second adhesive layer is double-sided adhesive；3) control pressure carries out roll-in sliver；4) overlay film.Preparation method provided by the invention utilizes the synergistic effect of double-sided adhesive and the first release film, it realizes magnetically soft alloy band to split without broken, crack width is very narrow, and pressure controls so that crack width is controllable, method of the invention solves magnetically soft alloy band and is easily broken off, and is not easy the problem of continuously preparing.
Description
Technical field
The invention belongs to technical field of magnetic materials, and in particular to a kind of diskette and its preparation method and application.
Background technique
Wireless power transmission refers to be charged in the way of electromagnetic wave induction principle or magnetic resonance, is received and is filled by electric energy
It sets and realizes wireless charging in the way of the electromagnetic induction of generation or frequency resonance with the two sides of power supply unit setting coils.
The charging of lithium ion battery in the electronic equipments such as Portable intelligent terminal, mobile phone, digital camera, video camera is all
One inverter is that direct current charges convert alternating current.And wireless charging technology be convert alternating current at 100kHz and
More than, power receiving coil is then coupled to by power supply coil using electromagnetic induction principle or magnetic resonance principle, then by exchange
It transforms to direct current and gives battery recharging.
Currently, the charging technique of more and more portable electronic devices is gradually strided forward to contactless charging, wireless charging
Power technology rapid development is charged the most universal with electromagnetic induction method, and mr techniques are also gradually rising.
The Wireless charging coil back side uses soft magnetic ferrite as diskette more, and the major function of diskette has two
It is a: to be on the one hand to provide the channel of high magnetic permeability for electromagnetic induction or the coupling of the coil of magnetic resonance, increase its magnetic flux, raising is filled
Electrical efficiency；On the other hand it is to guarantee that the alternating magnetic field of electromagnetic induction coil does not generate electromagnetic interference to other electronic components, plays
The effect of shielding.If soft magnetic ferrite processes flakiness, it is very easy to fracture, yield rate is very low, meanwhile, ferrite
The saturation induction density of material is very low, needs very big thickness that can just prevent its saturation when large current charge, is significantly greatly increased
The weight and volume of equipment is not able to satisfy electronic equipment lightweight, slimming, miniaturization, integrated etc. to soft magnetic materials completely
Increasingly higher demands.
The fever phenomenon of charge coil and soft magnetic materials, or even meeting can be brought in the occasion of quick charge or large current charge
Other circumferential component induction heatings are brought, fatal consequence is caused.To solve the above-mentioned problems, it needs to use high-performance soft magnetic materials
Magnetic conduction is carried out between transmitting end-coil and reception end-coil, receiving end coil peripheral electronic parts are electromagnetically shielded.It is right
Soft magnetic materials is used in wireless power transmission (WPT), it is desirable that intrinsic permeability is high, and saturation induction density is high, and eddy-current loss is low, thick
It spends thin and is processed into various shape conveniently to meet different coil requirements.Under normal circumstances, Portable intelligent terminal product is pre-
The space very little stayed, it is best to realize therefore, it is necessary to research and develop a kind of flexible, ultra-thin, high magnetic permeability and low-loss soft magnetic materials
Magnetic conduction and shield effectiveness.
Traditional wireless charging soft magnetic materials such as composite material of ferrite, metal powder and polymer etc. is due to them
Magnetic conductivity it is low low with saturation induction density, be difficult to accomplish to be thinned very much as they of magnetic conduction and shielding material, Bu Nengman
The requirement that sufficient smart terminal product develops to ultrathin, miniaturization increasingly.And amorphous & nanocrystalline is a kind of excellent
Ultra-thin soft magnetic materials can be prepared into 20 μm of even more thin thickness, and have high Effective permeability and high saturation magnetic strength
The advantage for answering intensity, most suitable as WPT magnetic conduction and shielding material.
Magnetic conductivity and saturation magnetic strength of the amorphous nanocrystalline soft magnetic material under strip state as WPT, which all meets, to be wanted
It asks.But the quality factor Q value that will lead to charge coil when using under the conditions of medium, high frequency because eddy-current loss is excessive reduces, hair
Heat should not directly be used than more serious in WPT system.But it can satisfy requirement when using as function of shielding.Therefore,
If realizing that amorphous & nanocrystalline can play the role of good magnetic conduction and play its excellent shield effectiveness, need to adopt
The eddy-current loss of soft magnetic materials is reduced with proper treatment technology.The face of reduction soft magnetic materials can be passed through on realizing technique
Product, the thickness for reducing material improve the methods of the resistivity of material to reduce eddy-current loss, and method more commonly used at present is
Reduce the area of soft magnetic materials, it may be assumed that amorphous nanocrystalline soft magnetic thin-band material is carried out junior unit segmentation, the face under monomer junior unit
Product is small, is vortexed small, to be disconnected in entire magnetic conduction sheet area systemic circulation vortex, so that making the loss of soft magnetic materials reduces, fever
It reduces.
CN104011814A refers to a kind of method that whole amorphous nanocrystalline strip is divided into junior unit, it is mentioned that
Method using lamination makes strip insulation between plates, passes through single layer amorphous nano-crystalline strip upper and lower faces and applies protective film or glue
Then the mode of band carries out crushing and prepares wireless charging diskette.The technology production efficiency is low, and process is tedious and surface quality
Consistency should not control.
CN104900383A discloses a kind of wireless charging single/multiple layer magnetic conduction sheet and preparation method thereof, uses dipping lacquer
Cured method carries out insulation processing to the sliver of crushing, but the technics comparing is complicated, it is difficult to carry out industrialization production.
Therefore, it is simple to develop a kind of process, magnetic conductivity (real part magnetic conductivity) is high, low soft of eddy-current loss (imaginary part magnetic conductivity)
Magnetic sheet has this field important meaning.
Summary of the invention
Aiming at the above shortcomings existing in the prior art, the purpose of the present invention is to provide a kind of diskette and its preparation sides
Method and purposes.Diskette provided by the invention can realize high magnetic permeability (real part magnetic conductivity) and low eddy-current loss (imaginary part magnetic conductance
Rate), heat producing losses caused by being reduced in charging process while improving charge efficiency.Preparation method provided by the invention is suitable
In such diskette of industrialization production.
To achieve this purpose, the present invention adopts the following technical scheme:
In a first aspect, the present invention provides a kind of diskette, the diskette includes: magnetically soft alloy layer, is located at magnetically soft alloy
Laminated protective film, and be equipped between the release film of magnetically soft alloy layer another side, the release film and magnetically soft alloy layer
Adhesive layer, the magnetically soft alloy layer include at least one layer of soft magnetic alloy sheet, are equipped with adhesive layer, the soft magnetism between soft magnetic alloy sheet
Contain crackle in alloy sheet, soft magnetic alloy sheet is divided into sliver unit by crackle.
In the present invention, the sliver unit is that crack width is smaller compared to fragment, difference, this helps do not changing
On the basis of the magnetic conductivity of softening magnetic sheet, reduce its eddy-current loss.Diskette provided by the invention can be by controlling sliver unit
Size and sliver unit between spacing (i.e. crack width) control the eddy-current loss of material, and then realize and reduce charging process
In heat producing losses, improve charge efficiency.
In the present invention, the magnetically soft alloy layer includes at least one layer of soft magnetic alloy sheet, such as 1 layer, 2 layers, 3 layers, 4 layers, 5 layers
Or 6 layers etc..
In the present invention, release film common in the art is can be used in the release film.
It is used as currently preferred technical solution below, but not as the limitation of technical solution provided by the invention, passes through
Following technical scheme can preferably reach and realize technical purpose and beneficial effect of the invention.
As currently preferred technical solution, the magnetically soft alloy layer is amorphous soft-magnetic alloy layer and/or nanocrystalline soft
Magnetic alloy layer.
Preferably, the soft magnetic alloy sheet is amorphous soft-magnetic alloy piece and/or nano-crystal soft magnetic alloy piece.
Preferably, the soft magnetic alloy sheet with a thickness of 14-35 μm, such as 14 μm, 18 μm, 20 μm, 25 μm, 30 μm, 32 μ
M, 33 μm, 34 μm or 35 μm etc., it is not limited to cited numerical value, other interior unlisted numerical value of the numberical range are same
It is applicable in.
Preferably, the protective film is polyethylene terephthalate film and/or polyimide film.
Preferably, the protective film with a thickness of 3-20 μm, such as 3 μm, 5 μm, 10 μm, 15 μm or 20 μm etc., but not
It is only limitted to cited numerical value, other unlisted numerical value are equally applicable in the numberical range.
Preferably, the release film with a thickness of 20-120 μm, such as 20 μm, 40 μm, 60 μm, 80 μm, 100 μm or 120 μ
M etc., it is not limited to cited numerical value, other interior unlisted numerical value of the numberical range are equally applicable.
Preferably, the adhesive layer between release film and magnetically soft alloy layer is double-sided adhesive and/or inorganic glue.The double-sided adhesive packet
It includes as appointing in 3M double-sided adhesive, 3M strong double-face glue, moral Sha double-sided adhesive, PET double-sided adhesive, foam double-faced adhesive or black 3M double-sided adhesive
It anticipates a kind of or at least two combinations.
Preferably, the adhesive layer thickness between release film and magnetically soft alloy layer is 3-20 μm.Such as 3 μm, 5 μm, 10 μm, 15
μm or 20 μm etc., it is not limited to cited numerical value, other unlisted numerical value are equally applicable in the numberical range.
Preferably, the adhesive layer between soft magnetic alloy sheet is at least one layer, and adhesive layer independently is double-sided adhesive and/or nothing
Machine glue.The double-sided adhesive include for 3M double-sided adhesive, 3M strong double-face glue, moral Sha double-sided adhesive, PET double-sided adhesive, foam double-faced adhesive or
In black 3M double-sided adhesive any one or at least two combination.
Preferably, the adhesive layer between soft magnetic alloy sheet is at least one layer, and the thickness of adhesive layer independently is 3-20 μm.
Such as 3 μm, 5 μm, 10 μm, 15 μm or 20 μm etc., it is not limited to cited numerical value, other are unlisted in the numberical range
Numerical value it is equally applicable.
Preferably, the shape of the sliver unit include triangle, in pentagon or hexagon any one or at least
Two kinds of combination.Above-mentioned shape can make the eddy-current loss of diskette lower.
Preferably, the side length of the sliver unit be 0.1-2mm, such as 0.1mm, 0.5mm, 1mm, 1.4mm, 1.8mm or
2mm etc., it is not limited to cited numerical value, other interior unlisted numerical value of the numberical range are equally applicable.The side length model
It encloses so that the eddy-current loss of the diskette is smaller, promotion products application is worth.
Preferably, the width of the crackle is 0.05-0.5 μm, such as 0.05 μm, 0.1 μm, 0.2 μm, 0.3 μm, 0.4 μm
Or 0.5 μm etc., it is not limited to cited numerical value, other interior unlisted numerical value of the numberical range are equally applicable.It is above-mentioned
Relatively narrow crack width is more advantageous to the magnetic conductivity for promoting diskette, reduces its eddy-current loss.
Preferably, the sliver cell size is all the same.
Preferably, the diskette is flexible diskette.
Second aspect, the present invention provide a kind of preparation method of diskette as described in relation to the first aspect, the method includes with
Lower step:
(1) by magnetically soft alloy strip coil around, be heat-treated, after heat treatment in the one side of the band patch first protection
Film is opened the band of winding, the band opened；
(2) the first adhesive layer is set on the another side of the band of step (1) described opening, is pasted on the first adhesive layer
One release film, and the second adhesive layer is pasted on the first release film, the band for covering adhesive layer is obtained, second adhesive layer is two-sided
The glue and double-sided adhesive does not remove isolation film；
(3) the band roll-in sliver of adhesive layer will be covered described in step (2) with patterned mold, is controlled during roll-in sliver
Pressing pressure obtains the band containing crackle；
(4) when the magnetically soft alloy layer of the diskette includes one layer of soft magnetic alloy sheet, crackle will be contained described in step (3)
The first protective film of band remove, it is viscous by first of the band containing crackle described in step (3) in second protective film of face paste
Knot layer, the first release film and the second adhesive layer remove, and third adhesive layer is arranged in the face, and on third adhesive layer patch second from
Type film obtains the diskette；
It, will be described in (3) the step of required the piece number when the magnetically soft alloy layer of the diskette includes multilayer soft magnetic alloy sheet
The first protective film, the first adhesive layer, the first release film and the second adhesive layer of band containing crackle all remove, soft by what is obtained
Magnetic alloy piece is stacked, and lamella adhesive layer is arranged between piece and piece, magnetically soft alloy layer is obtained, in a face paste of the magnetically soft alloy layer
Third adhesive layer is arranged in the another side of the magnetically soft alloy layer in second protective film, and patch second is release on third adhesive layer
Film obtains the diskette.
It is (two-sided by pasting the second adhesive layer on the first release film in step (2) in preparation method provided by the invention
Glue and the double-sided adhesive does not remove isolation film), using the synergistic effect of the double-sided adhesive for not removing isolation film and the first release film,
The pattern of magnetically soft alloy band " splitting without broken " is obtained in subsequent calandering steps, the pattern of this " splitting without broken " makes
Crackle in soft magnetic alloy sheet is very narrow, and finally obtained diskette has high magnetic permeability (real part magnetic conductivity) and low eddy-current loss
(imaginary part magnetic conductivity), heat producing losses caused by being reduced in charging process while improving charge efficiency.
In preparation method provided by the invention, step (1) first pastes the first protective film before the band for opening winding, can be with
It prevents that strip breaks phenomenon occurs when coiled material is opened, reduces material loss, reduce production cost.
In preparation method provided by the invention, the another side of the band of step (2) described opening, which refers to, does not paste the first guarantor
The one side of cuticula.
In preparation method provided by the invention, by patterned mold in step (3), roll-in sliver is carried out to band,
By the pattern on mold be transferred to it is described cover on the band of adhesive layer, on the sliver unit and mold that the crack segmentation on band goes out
Pattern form it is identical.By control pressure in step (3), the width of crackle can be controlled.
As currently preferred technical solution, in step (1), the magnetically soft alloy band is amorphous soft-magnetic alloy band
And/or nano-crystal soft magnetic alloy band.
Preferably, in step (1), the width of the magnetically soft alloy band is 30-150mm, for example, 30mm, 40mm, 50mm,
60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm or 150mm etc., it is not limited to cited
Numerical value, other unlisted numerical value are equally applicable in the numberical range.
Preferably, in step (1), the magnetically soft alloy band with a thickness of 14-35 μm, such as 14 μm, 18 μm, 20 μm,
25 μm, 30 μm, 32 μm, 33 μm, 34 μm or 35 μm etc., it is not limited to cited numerical value, in the numberical range, other are not
The numerical value enumerated is equally applicable.
Preferably, in step (1), the length of the magnetically soft alloy band is 50-300m, for example, 50m, 100m, 150m,
200m, 250m or 300m etc., it is not limited to cited numerical value, other interior unlisted numerical value of the numberical range are equally suitable
With.
In step (1), winding magnetically soft alloy band is often 76.2mm or 152.4mm with core internal diameter.
Preferably, in step (1), the temperature of the heat treatment is 300-600 DEG C, for example, 300 DEG C, 350 DEG C, 400 DEG C,
450 DEG C, 500 DEG C, 550 DEG C or 600 DEG C etc., it is not limited to cited numerical value, other are unlisted in the numberical range
Numerical value is equally applicable.
Preferably, in step (1), time of the heat treatment is 30-120min, for example, 30min, 40min, 50min,
60min, 70min, 80min, 90min, 100min, 110min or 120min etc., it is not limited to cited numerical value, the number
It is equally applicable to be worth other unlisted numerical value in range.
Preferably, in step (1), the heat treatment is carried out under vacuum or is carried out under protective atmosphere.
Preferably, the protective atmosphere includes nitrogen atmosphere, argon atmosphere, hydrogen atmosphere or is made of nitrogen and hydrogen
Any one in mixed atmosphere.
Preferably, in step (1), first protective film includes in polypropylene protective film, double faced adhesive tape or one-faced tapes
Any one or at least two combination.
As currently preferred technical solution, in step (2), first adhesive layer is double-sided adhesive and/or inorganic glue.
Preferably, when the first adhesive layer is double-sided adhesive, the double-sided adhesive with a thickness of 3-20 μm, such as 3 μm, 5 μm, 10
μm, 15 μm or 20 μm etc., it is not limited to cited numerical value, other unlisted numerical value are equally suitable in the numberical range
With.
Preferably, second adhesive layer with a thickness of 10-200 μm, such as 10 μm, 20 μm, 40 μm, 60 μm, 80 μm,
100 μm, 125 μm, 150 μm, 175 μm or 200 μm etc., it is not limited to cited numerical value, in the numberical range, other are not
The numerical value enumerated is equally applicable.
As currently preferred technical solution, in step (3), the pattern of the mold include triangle, pentagon or
In hexagon any one or at least two combination.
Preferably, in step (3), a length of 0.1-2mm of the patterned sides of the mold, such as 0.1mm, 0.5mm, 1mm,
1.4mm, 1.8mm or 2mm etc., it is not limited to cited numerical value, other interior unlisted numerical value of the numberical range are same
It is applicable in.
Preferably, in step (3), the material of the mold is metal and/or nonmetallic.
Preferably, in step (3), pass through regulating roller pressure arm moment of torsion control pressure.
Preferably, the roll-in arm of force torque be 9-24Nm, such as 9Nm, 10Nm, 15Nm, 20Nm or
24Nm etc., it is not limited to cited numerical value, other interior unlisted numerical value of the numberical range are equally applicable.
As currently preferred technical solution, in step (4), second protective film is polyethylene terephthalate
Ester film and/or polyimide film.
Preferably, in step (4), second protective film with a thickness of 3-20 μm, such as 3 μm, 5 μm, 10 μm, 15 μm or
20 μm etc., it is not limited to cited numerical value, other interior unlisted numerical value of the numberical range are equally applicable.
Preferably, in step (4), the third adhesive layer is double-sided adhesive and/or inorganic glue.
Preferably, in step (4), second release film with a thickness of 20-120 μm, such as 20 μm, 30 μm, 40 μm, 50
μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm or 120 μm etc., it is not limited to cited numerical value, the numerical value model
Other unlisted numerical value are equally applicable in enclosing.
Preferably, in step (4), the lamella adhesive layer independently is double-sided adhesive and/or inorganic glue.
As currently preferred technical solution, the method also includes step (5): being obtained step (4) with cutting implement
To the edge of diskette cut neatly.
Preferably, in step (5), the cutting implement includes slitting knife.
As the further preferred technical solution of preparation method of the present invention, the described method comprises the following steps:
(1) by magnetically soft alloy strip coil around, be heat-treated, after heat treatment in the one side of the band patch first protection
Film is opened the band of winding, the band opened；
Wherein, the magnetically soft alloy band be amorphous soft-magnetic alloy band and/or nano-crystal soft magnetic alloy band, it is described soft
The width of magnetic alloy band is 30-150mm, and with a thickness of 32-35 μm, length 50-300m, the temperature of the heat treatment is 300-
600 DEG C, the time of the heat treatment is 30-120min, and the heat treatment is carried out or carried out under protective atmosphere, institute under vacuum
State the combination that the first protective film includes any one in polypropylene protective film, double faced adhesive tape or one-faced tapes or at least two；
(2) the first adhesive layer is set on the another side of the band of step (1) described opening, and first adhesive layer is 3-
The double-sided adhesive of 20 μ m-thicks pastes the first release film on the first adhesive layer, and pastes the second adhesive layer on the first release film, is covered
The band of adhesive layer, second adhesive layer is the double-sided adhesive of 10-200 μ m-thick and the double-sided adhesive does not remove isolation film；
(3) the band roll-in sliver that will cover adhesive layer described in step (2) with patterned mold, passes through regulating roller pressure arm
The pressure of moment of torsion control roll-in sliver, obtains the band containing crackle；
Wherein, the pattern of the mold include triangle, in pentagon or hexagon any one or at least two
Combination, a length of 0.1-2mm of patterned sides, the material of the mold are metal and/or nonmetallic, and the roll-in arm of force torque is 9-
24N·m；
(4) when the magnetically soft alloy layer of the diskette includes one layer of soft magnetic alloy sheet, crackle will be contained described in step (3)
The first protective film of band remove, it is viscous by first of the band containing crackle described in step (3) in second protective film of face paste
Knot layer, the first release film and the second adhesive layer remove, and third adhesive layer is arranged in the face, and on third adhesive layer patch second from
Type film obtains the diskette；
It, will be described in (3) the step of required the piece number when the magnetically soft alloy layer of the diskette includes multilayer soft magnetic alloy sheet
The first protective film, the first adhesive layer, the first release film and the second adhesive layer of band containing crackle all remove, soft by what is obtained
Magnetic alloy piece is stacked, and lamella adhesive layer is arranged between piece and piece, obtains magnetically soft alloy layer, and the lamella adhesive layer independently is double
Face glue and/or inorganic glue are set in second protective film of face paste of the magnetically soft alloy layer in the another side of the magnetically soft alloy layer
Third adhesive layer is set, and pastes the second release film on third adhesive layer, obtains the diskette；
Wherein, second protective film is polyethylene terephthalate film and/or polyimide film, with a thickness of 3-20
μm, the third adhesive layer be double-sided adhesive and/or inorganic glue, second release film with a thickness of 20-120 μm；
(5) edge for the diskette that step (4) obtains is cut neatly with slitting knife.
The third aspect, the present invention provide a kind of purposes of diskette as described in relation to the first aspect, and the diskette is for wireless
Electric energy transmission system.
Compared with prior art, the invention has the following advantages:
(1) diskette provided by the invention is under the frequency of 128KHz, and for real part magnetic conductivity up to 2010, imaginary part magnetic conductivity is low
In 85, heat producing losses caused by reducing in charging process while improving charge efficiency are highly suitable for radio energy
Transmission system.
(2) preparation method provided by the invention on the first release film by pasting the second adhesive layer (double-sided adhesive and described pair
Face glue does not remove isolation film), using the synergistic effect of the double-sided adhesive for not removing isolation film and the first release film, in subsequent roller
The pattern for obtaining magnetically soft alloy band " splitting without broken " in pressure step solves so that the crackle in soft magnetic alloy sheet is very narrow
Magnetically soft alloy band is easily broken off, it is not easy to which the problem of continuously preparing, being unfavorable for large-scale production improves soft magnetism flake products
Performance.Preparation method provided by the invention can guarantee the continuity and high efficiency of preparation process, easy to operate and be easy to industry
Metaplasia produces.
Detailed description of the invention
Fig. 1 is the schematic diagram of step (3) roll-in sliver in the preparation method for the diskette that the embodiment of the present invention 1 provides,
Middle 1- magnetically soft alloy band, the first protective film of 2-, the first adhesive layer of 3-, the first release film of 4-, the second adhesive layer of 5-, 6- mold,
7- steel rider.
Specific embodiment
In order to better illustrate the present invention, it is easy to understand technical solution of the present invention, below further specifically to the present invention
It is bright.But following embodiments is only simple example of the invention, does not represent or limit the scope of the present invention, this
Invention protection scope is subject to claims.
The following are typical but non-limiting embodiments of the invention:
Embodiment 1
The present embodiment is prepared as follows diskette:
It (1) is 60mm by width, being wound into internal diameter with a thickness of 20 μm of amorphous soft-magnetic alloy bands is 78mm, and total length is
100m and the close iron core of winding, place it in heat-treatment furnace and are heat-treated under vacuum condition, heat treatment temperature 540
DEG C, it is opened when blower is cooled to 200 DEG C with furnace after heat preservation 60min and opens fire door, the coiled material taking-up after heat treatment is placed on sky
It is cooled further to room temperature in gas, pastes the first protective film (OPP protective film) after heat treatment in the one side of the band, will wind
Band open, the band opened；
Wherein, the amorphous component in the amorphous soft-magnetic alloy band is FeSiB；
(2) the first adhesive layer is set in the one side that the band of step (1) described opening does not paste the first protective film, described
One adhesive layer is the double-sided adhesive of 5 μ m-thicks, and the first release film is pasted on the first adhesive layer, and the second bonding of patch on the first release film
Layer obtains the band for covering adhesive layer, and second adhesive layer is the double-sided adhesive of 100 μ m-thicks and the double-sided adhesive does not remove isolation
Film；
(3) the band roll-in sliver of adhesive layer, regulating roller pressure arm torque will be covered described in step (2) with patterned mold
It is 15Nm to control pressure, obtains the band containing crackle；
Wherein, the pattern of the mold is triangle, and a length of 0.5mm of triangle edges, the material of the mold is metal；
The schematic diagram of the step is as shown in Figure 1, step (2) band for covering adhesive layer successively includes first from top to bottom
Protective film 2, magnetically soft alloy band 1, the first adhesive layer 3, the first release film 4 and the second adhesive layer 5, step (2) is described to cover bonding
The band of layer is clamped by the steel rider 7 of the mold 6 of top and lower section, carries out roll-in sliver.
(4) the first protective film of the band containing crackle described in step (3) is removed, in second protective film of face paste, institute
Crackle will be contained described in step (3) with a thickness of 10 μm for polyethylene terephthalate film protective film by stating the second protective film
The first adhesive layer, the first release film and the second adhesive layer of band remove, and third adhesive layer, the third bonding is arranged in the face
Layer is double-sided adhesive, and the second release film is pasted on third adhesive layer, and second release film is the poly terephthalic acid of 80 μ m-thicks
Glycol ester film finally obtains the diskette；
(5) edge for the diskette that step (4) obtains is cut neatly with slitting knife, to obtain preferable appearance.
The diskette that the present embodiment obtains is flexible diskette, including amorphous soft-magnetic alloy layer, is located at magnetically soft alloy layer one
The polyethylene terephthalate film protective film (33 μm of thickness) in face, and it is (thick positioned at the release film of magnetically soft alloy layer another side
80 μm of degree), adhesive layer is equipped between the release film and magnetically soft alloy layer, the magnetically soft alloy layer includes 1 layer of soft magnetic alloy sheet,
The soft magnetic alloy sheet with a thickness of 20 μm, contain crackle in the soft magnetic alloy sheet, soft magnetic alloy sheet is divided by crackle to be split
Blade unit, sliver unit are the triangle of side length 0.5mm, and crack width is 0.25 μm, and sliver cell size is identical, and distribution is equal
Even, adhesive layer is double-sided adhesive.
The performance test results for the diskette that the present embodiment obtains are shown in Table 1.
Embodiment 2
The present embodiment is prepared as follows diskette:
It (1) is 30mm by width, being wound into internal diameter with a thickness of 14 μm of amorphous soft-magnetic alloy bands is 78mm, and total length is
50m and the close iron core of winding, place it in heat-treatment furnace and are heat-treated in a nitrogen atmosphere, heat treatment temperature 300
DEG C, it is opened when blower is cooled to 200 DEG C with furnace after heat preservation 30min and opens fire door, the coiled material taking-up after heat treatment is placed on sky
It is cooled further to room temperature in gas, pastes the first protective film (OPP protective film) after heat treatment in the one side of the band, will wind
Band open, the band opened；
Wherein, the non-crystalline material type in the amorphous soft-magnetic alloy band and nature parameters are same as Example 1.
(2) the first adhesive layer is set in the one side that the band of step (1) described opening does not paste the first protective film, described
One adhesive layer is the double-sided adhesive of 3 μ m-thicks, and the first release film is pasted on the first adhesive layer, and the second bonding of patch on the first release film
Layer obtains the band for covering adhesive layer, and second adhesive layer is the double-sided adhesive of 10 μ m-thicks and the double-sided adhesive does not remove isolation film；
(3) the band roll-in sliver of adhesive layer, regulating roller pressure arm torque will be covered described in step (2) with patterned mold
It is 9Nm to control pressure, obtains the band containing crackle；
Wherein, the pattern of the mold is pentagon, and pentagon side length is 2mm, and the material of the mold is nonmetallic；
(4) by the first protective film, the first adhesive layer, the first release film of the band containing crackle described in (3) the step of 4
All remove with the second adhesive layer, obtained soft magnetic alloy sheet is stacked, lamella adhesive layer is set between piece and piece, obtains soft magnetism conjunction
Layer gold, the lamella adhesive layer is double-sided adhesive, in second protective film of face paste of the magnetically soft alloy layer, second protective film
Third adhesive layer, institute are set in the another side of the magnetically soft alloy layer with a thickness of 3 μm for polyethylene terephthalate film
Stating third adhesive layer is double-sided adhesive, and the second release film is pasted on third adhesive layer, second release film with a thickness of 20 μm,
Obtain the diskette；
(5) edge for the diskette that step (4) obtains is cut neatly with slitting knife, to obtain preferable appearance.
The diskette that the present embodiment obtains is flexible diskette, including amorphous soft-magnetic alloy layer, is located at magnetically soft alloy layer one
The polyethylene terephthalate film protective film (3 μm of thickness) in face, and positioned at the release film (thickness of magnetically soft alloy layer another side
20 μm), adhesive layer is equipped between the release film and magnetically soft alloy layer, the magnetically soft alloy layer includes 4 layers of soft magnetic alloy sheet, soft
Be equipped with adhesive layer between magnetic alloy piece, the soft magnetic alloy sheet with a thickness of 14 μm, contain crackle in the soft magnetic alloy sheet, split
Soft magnetic alloy sheet is divided into sliver unit by line, and sliver unit is the pentagon of side length 2mm, and crack width is 0.5 μm, sliver list
First size is identical, is evenly distributed, and adhesive layer is double-sided adhesive.
The performance test results for the diskette that the present embodiment obtains are shown in Table 1.
Embodiment 3
The present embodiment is prepared as follows diskette:
It (1) is 150mm by width, being wound into internal diameter with a thickness of 35 μm of amorphous soft-magnetic alloy bands is 78mm, and total length is
300m and the close iron core of winding, place it in heat-treatment furnace and are heat-treated in a nitrogen atmosphere, heat treatment temperature 600
DEG C, it is opened when blower is cooled to 200 DEG C with furnace after heat preservation 120min and opens fire door, the coiled material taking-up after heat treatment is placed on sky
It is cooled further to room temperature in gas, pastes the first protective film (OPP protective film) after heat treatment in the one side of the band, will wind
Band open, the band opened；
Wherein, the non-crystalline material type in the amorphous soft-magnetic alloy band and nature parameters are same as Example 1；
(2) the first adhesive layer is set in the one side that the band of step (1) described opening does not paste the first protective film, described
One adhesive layer is the double-sided adhesive of 20 μ m-thicks, and the first release film is pasted on the first adhesive layer, and patch second is viscous on the first release film
Layer is tied, obtains the band for covering adhesive layer, second adhesive layer is the double-sided adhesive of 200 μ m-thicks and the double-sided adhesive does not remove isolation
Film；
(3) the band roll-in sliver of adhesive layer, regulating roller pressure arm torque will be covered described in step (2) with patterned mold
It is 24Nm to control pressure, obtains the band containing crackle；
Wherein, the pattern of the mold is hexagon, and hexagonal side length 0.1mm, the material of the mold is metal；
(4) by the first protective film, the first adhesive layer, the first release film of the band containing crackle described in (3) the step of 2
All remove with the second adhesive layer, obtained soft magnetic alloy sheet is stacked, lamella adhesive layer is set between piece and piece, obtains soft magnetism conjunction
Layer gold, the lamella adhesive layer is double-sided adhesive, in second protective film of face paste of the magnetically soft alloy layer, second protective film
Third adhesive layer, the third adhesive layer are set in the another side of the magnetically soft alloy layer with a thickness of 20 μm for polyimide film
For double-sided adhesive, and the second release film is pasted on third adhesive layer, second release film with a thickness of 120 μm, obtain described soft
Magnetic sheet；
(5) edge for the diskette that step (4) obtains is cut neatly with slitting knife, to obtain preferable appearance.
The diskette that the present embodiment obtains is flexible diskette, including amorphous soft-magnetic alloy layer, is located at magnetically soft alloy layer one
The polyimide film protective film (20 μm of thickness) in face, and positioned at the release film (120 μm of thickness) of magnetically soft alloy layer another side, it is described
Adhesive layer is equipped between release film and magnetically soft alloy layer, the magnetically soft alloy layer includes 2 layers of soft magnetic alloy sheet, the magnetically soft alloy
Piece with a thickness of 35 μm, contain crackle in the soft magnetic alloy sheet, soft magnetic alloy sheet is divided into sliver unit, sliver list by crackle
Member is the hexagon of side length 0.1mm, and crack width is 0.05 μm, and sliver cell size is identical, is evenly distributed, and adhesive layer is double
Face glue.
The performance test results for the diskette that the present embodiment obtains are shown in Table 1.
Embodiment 4
The present embodiment is prepared as follows diskette:
It (1) is 60mm by width, being wound into internal diameter with a thickness of 50 μm of amorphous soft-magnetic alloy bands is 78mm, and total length is
100m and the close iron core of winding, place it in heat-treatment furnace and are heat-treated under vacuum condition, heat treatment temperature 520
DEG C, it is opened when blower is cooled to 200 DEG C with furnace after heat preservation 60min and opens fire door, the coiled material taking-up after heat treatment is placed on sky
It is cooled further to room temperature in gas, pastes the first protective film (OPP protective film) after heat treatment in the one side of the band, will wind
Band open, the band opened；
Wherein, the non-crystalline material type in the amorphous soft-magnetic alloy band and nature parameters are same as Example 1；
(2) the first adhesive layer is set in the one side that the band of step (1) described opening does not paste the first protective film, described
One adhesive layer is the double-sided adhesive of 5 μ m-thicks, and the first release film is pasted on the first adhesive layer, and the second bonding of patch on the first release film
Layer obtains the band for covering adhesive layer, and second adhesive layer is the double-sided adhesive of 100 μ m-thicks and the double-sided adhesive does not remove isolation
Film；
(3) the band roll-in sliver of adhesive layer, regulating roller pressure arm torque will be covered described in step (2) with patterned mold
It is 15Nm to control pressure, obtains the band containing crackle；
Wherein, the pattern of the mold is triangle, and a length of 0.5mm of triangle edges, the material of the mold is metal；
(4) the first protective film of the band containing crackle described in step (3) is removed, in second protective film of face paste, institute
Crackle will be contained described in step (3) with a thickness of 10 μm for polyethylene terephthalate film protective film by stating the second protective film
The first adhesive layer, the first release film and the second adhesive layer of band remove, and third adhesive layer, the third bonding is arranged in the face
Layer is double-sided adhesive, and the second release film is pasted on third adhesive layer, and second release film is the poly terephthalic acid of 80 μ m-thicks
Glycol ester film finally obtains the diskette；
(5) edge for the diskette that step (4) obtains is cut neatly with slitting knife, to obtain preferable appearance.
The diskette that the present embodiment obtains is flexible diskette, including amorphous soft-magnetic alloy layer, is located at magnetically soft alloy layer one
The polyethylene terephthalate film protective film (10 μm of thickness) in face, and it is (thick positioned at the release film of magnetically soft alloy layer another side
80 μm of degree), adhesive layer is equipped between the release film and magnetically soft alloy layer, the magnetically soft alloy layer includes 1 layer of soft magnetic alloy sheet,
The soft magnetic alloy sheet with a thickness of 50 μm, contain crackle in the soft magnetic alloy sheet, soft magnetic alloy sheet is divided by crackle to be split
Blade unit, sliver unit are the triangle of side length 0.5mm, and crack width is 0.2 μm, and sliver cell size is identical, are evenly distributed,
Adhesive layer is double-sided adhesive.
The performance test results for the diskette that the present embodiment obtains are shown in Table 1.
Embodiment 5
Referring to implementing 1, difference is for the specific method of the present embodiment, and in step (3), the pattern of mold is triangle, three
The a length of 1mm of polygonal limit.
The performance test results for the diskette that the present embodiment obtains are shown in Table 1.
Embodiment 6
Referring to implementing 1, difference is the specific method of the present embodiment, in step (1), uses nano-crystal soft magnetic alloy
Band, it is described nanocrystalline comprising Fe, Si, B, Nb and Cu element.
The performance test results for the diskette that the present embodiment obtains are shown in Table 1.
Comparative example 1
Referring to embodiment 1, difference is the specific method of this comparative example, in step (2), does not paste the second adhesive layer.
As a result, the crackle of soft magnetic alloy sheet is very wide in finally obtained soft magnetism flake products, it is not " splitting without broken ".
The performance test results for the diskette that this comparative example obtains are shown in Table 1.
Comparative example 2
Referring to embodiment 2, difference is the specific method of this comparative example, in step (2), does not paste the second adhesive layer.
As a result, the crackle of soft magnetic alloy sheet is very wide in finally obtained soft magnetism flake products, it is not " splitting without broken ".
The performance test results for the diskette that this comparative example obtains are shown in Table 1.
Comparative example 3
Referring to embodiment 3, difference is the specific method of this comparative example, in step (2), does not paste the second adhesive layer.
As a result, the crackle of soft magnetic alloy sheet is very wide in finally obtained soft magnetism flake products, it is not " splitting without broken ".
The performance test results for the diskette that this comparative example obtains are shown in Table 1.
Magnetic conductivity test is carried out under the frequency of 128KHz with the diskette obtained to above embodiments and comparative example, is tied
Fruit see the table below.
Table 1
| Real part magnetic conductivity | Imaginary part magnetic conductivity | |
| Embodiment 1 | 2010 | 80 |
| Embodiment 2 | 1958 | 75 |
| Embodiment 3 | 1924 | 68 |
| Embodiment 4 | 2007 | 79 |
| Embodiment 5 | 1695 | 83 |
| Embodiment 6 | 1605 | 75 |
| Comparative example 1 | 1536 | 113 |
| Comparative example 2 | 1485 | 107 |
| Comparative example 3 | 1322 | 105 |
Based on the above embodiments with comparative example it is found that preparation method provided by the invention on the first release film by pasting
Two adhesive layers (double-sided adhesive, and the double-sided adhesive does not remove isolation film), using the double-sided adhesive for not removing isolation film and first from
The synergistic effect of type film obtains the pattern of magnetically soft alloy band " splitting without broken " in subsequent calandering steps, solves soft
Magnetic alloy band is easily broken off, it is not easy to which the problem of continuously preparing, being unfavorable for large-scale production improves the property of soft magnetism flake products
Energy.Comparative example does not use the solution of the present invention, thus can not obtain excellent results of the invention.
The Applicant declares that the foregoing is merely a specific embodiment of the invention, but protection scope of the present invention not office
It is limited to this, it should be clear to those skilled in the art, any to belong to those skilled in the art and take off in the present invention
In the technical scope of dew, any changes or substitutions that can be easily thought of, and all of which fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. a kind of diskette, which is characterized in that the diskette includes: magnetically soft alloy layer, the guarantor laminated positioned at magnetically soft alloy
Cuticula, and adhesive layer is equipped between the release film of magnetically soft alloy layer another side, the release film and magnetically soft alloy layer, it is described
Magnetically soft alloy layer includes at least one layer of soft magnetic alloy sheet, and adhesive layer is equipped between soft magnetic alloy sheet, is contained in the soft magnetic alloy sheet
There is crackle, soft magnetic alloy sheet is divided into sliver unit by crackle.
2. diskette according to claim 1, which is characterized in that the magnetically soft alloy layer be amorphous soft-magnetic alloy layer and/
Or nano-crystal soft magnetic alloy layer；
Preferably, the soft magnetic alloy sheet is amorphous soft-magnetic alloy piece and/or nano-crystal soft magnetic alloy piece；
Preferably, the soft magnetic alloy sheet with a thickness of 14-35 μm；
Preferably, the protective film is polyethylene terephthalate film and/or polyimide film；
Preferably, the protective film with a thickness of 3-20 μm；
Preferably, the release film with a thickness of 20-120 μm；
Preferably, the adhesive layer between release film and magnetically soft alloy layer is double-sided adhesive and/or inorganic glue；
Preferably, the adhesive layer thickness between release film and magnetically soft alloy layer is 3-20 μm；
Preferably, the adhesive layer between soft magnetic alloy sheet is at least one layer, and adhesive layer independently is double-sided adhesive and/or inorganic
Glue；
Preferably, the adhesive layer between soft magnetic alloy sheet is at least one layer, and the thickness of adhesive layer independently is 3-20 μm；
Preferably, the shape of the sliver unit include triangle, in pentagon or hexagon any one or at least two
Combination；
Preferably, the side length of the sliver unit is 0.1-2mm；
Preferably, the width of the crackle is 0.05-0.5 μm；
Preferably, the sliver cell size is all the same；
Preferably, the diskette is flexible diskette.
3. a kind of preparation method of diskette as claimed in claim 1 or 2, which is characterized in that the described method comprises the following steps:
(1) by magnetically soft alloy strip coil around, be heat-treated, paste the first protective film after heat treatment in the one side of the band,
The band of winding is opened, the band opened；
(2) the first adhesive layer is set on the another side of the band of step (1) described opening, on the first adhesive layer paste first from
Type film, and the second adhesive layer is pasted on the first release film, obtains the band for covering adhesive layer, second adhesive layer be double-sided adhesive and
The double-sided adhesive does not remove isolation film；
(3) the band roll-in sliver of adhesive layer will be covered described in step (2) with patterned mold, pressure is controlled during roll-in sliver
Power obtains the band containing crackle；
(4) when the magnetically soft alloy layer of the diskette includes one layer of soft magnetic alloy sheet, by the band containing crackle described in step (3)
First protective film of material removes, in second protective film of face paste, by the first bonding of the band containing crackle described in step (3)
Layer, the first release film and the second adhesive layer remove, and third adhesive layer are arranged in the face, and patch second is release on third adhesive layer
Film obtains the diskette；
When the magnetically soft alloy layer of the diskette includes multilayer soft magnetic alloy sheet, will contain described in (3) the step of required the piece number
The first protective film, the first adhesive layer, the first release film and the second adhesive layer of the band of crackle all remove, and obtained soft magnetism is closed
Gold plaque is stacked, and lamella adhesive layer is arranged between piece and piece, magnetically soft alloy layer is obtained, in a face paste second of the magnetically soft alloy layer
Protective film is arranged third adhesive layer in the another side of the magnetically soft alloy layer, and pastes the second release film on third adhesive layer, obtains
To the diskette.
4. preparation method according to claim 3, which is characterized in that in step (1), the magnetically soft alloy band is amorphous
Magnetically soft alloy band and/or nano-crystal soft magnetic alloy band；
Preferably, in step (1), the width of the magnetically soft alloy band is 30-150mm；
Preferably, in step (1), the magnetically soft alloy band with a thickness of 14-35 μm；
Preferably, in step (1), the length of the magnetically soft alloy band is 50-300m；
Preferably, in step (1), the temperature of the heat treatment is 300-600 DEG C；
Preferably, in step (1), the time of the heat treatment is 30-120min；
Preferably, in step (1), the heat treatment is carried out under vacuum or is carried out under protective atmosphere；
Preferably, the protective atmosphere includes nitrogen atmosphere, argon atmosphere, hydrogen atmosphere or the mixing being made of nitrogen and hydrogen
Any one in atmosphere；
Preferably, in step (1), first protective film includes any in polypropylene protective film, double faced adhesive tape or one-faced tapes
It is a kind of or at least two combination.
5. preparation method according to claim 3 or 4, which is characterized in that in step (2), first adhesive layer is double
Face glue and/or inorganic glue；
Preferably, when the first adhesive layer be double-sided adhesive when, the double-sided adhesive with a thickness of 3-20 μm；
Preferably, second adhesive layer with a thickness of 10-200 μm.
6. according to the described in any item methods of claim 3-5, which is characterized in that the pattern packet in step (3), on the mold
Include triangle, in pentagon or hexagon any one or at least two combination；
Preferably, a length of 0.1-2mm of patterned sides in step (3), on the mold；
Preferably, in step (3), the material of the mold is metal and/or nonmetallic；
Preferably, in step (3), pass through regulating roller pressure arm moment of torsion control pressure；
Preferably, the roll-in arm of force torque is 9-24Nm.
7. according to the described in any item preparation methods of claim 3-6, which is characterized in that in step (4), second protective film
For polyethylene terephthalate film and/or polyimide film；
Preferably, in step (4), second protective film with a thickness of 3-20 μm；
Preferably, in step (4), the third adhesive layer is double-sided adhesive and/or inorganic glue；
Preferably, in step (4), second release film with a thickness of 20-120 μm；
Preferably, in step (4), the lamella adhesive layer independently is double-sided adhesive and/or inorganic glue.
8. according to the described in any item preparation methods of claim 3-7, which is characterized in that the method also includes step (5): using
Cutting implement cuts at the edge for the diskette that step (4) obtains neatly；
Preferably, in step (5), the cutting implement includes slitting knife.
9. according to the described in any item preparation methods of claim 3-8, which is characterized in that the described method comprises the following steps:
(1) by magnetically soft alloy strip coil around, be heat-treated, paste the first protective film after heat treatment in the one side of the band,
The band of winding is opened, the band opened；
Wherein, the magnetically soft alloy band is amorphous soft-magnetic alloy band and/or nano-crystal soft magnetic alloy band, and the soft magnetism closes
The width of gold ribbon material is 30-150mm, and with a thickness of 14-35 μm, length 50-300m, the temperature of the heat treatment is 300-600
DEG C, the time of the heat treatment is 30-120min, and the heat treatment is carried out under vacuum or carried out under protective atmosphere, described
First protective film includes the combination of any one in polypropylene protective film, double faced adhesive tape or one-faced tapes or at least two；
(2) the first adhesive layer is set on the another side of the band of step (1) described opening, and first adhesive layer is 3-20 μm
Thick double-sided adhesive, pastes the first release film, and paste the second adhesive layer on the first release film on the first adhesive layer, obtains covering bonding
The band of layer, second adhesive layer is the double-sided adhesive of 10-200 μ m-thick and the double-sided adhesive does not remove isolation film；
(3) the band roll-in sliver that will cover adhesive layer described in step (2) with patterned mold, passes through regulating roller pressure arm torque
The pressure for controlling roll-in sliver, obtains the band containing crackle；
Wherein, the pattern on the mold include triangle, in pentagon or hexagon any one or at least two group
It closes, a length of 0.1-2mm of patterned sides, the material of the mold is metal and/or nonmetallic, and the roll-in arm of force torque is 9-
24N·m；
(4) when the magnetically soft alloy layer of the diskette includes one layer of soft magnetic alloy sheet, by the band containing crackle described in step (3)
First protective film of material removes, in second protective film of face paste, by the first bonding of the band containing crackle described in step (3)
Layer, the first release film and the second adhesive layer remove, and third adhesive layer are arranged in the face, and patch second is release on third adhesive layer
Film obtains the diskette；
When the magnetically soft alloy layer of the diskette includes multilayer soft magnetic alloy sheet, will contain described in (3) the step of required the piece number
The first protective film, the first adhesive layer, the first release film and the second adhesive layer of the band of crackle all remove, and obtained soft magnetism is closed
Gold plaque is stacked, and lamella adhesive layer is arranged between piece and piece, obtains magnetically soft alloy layer, the lamella adhesive layer independently is double-sided adhesive
And/or inorganic glue, in second protective film of face paste of the magnetically soft alloy layer, in the another side setting the of the magnetically soft alloy layer
Three adhesive layers, and the second release film is pasted on third adhesive layer, obtain the diskette；
Wherein, second protective film is polyethylene terephthalate film and/or polyimide film, with a thickness of 3-20 μm,
The third adhesive layer be double-sided adhesive and/or inorganic glue, second release film with a thickness of 20-120 μm；
(5) edge for the diskette that step (4) obtains is cut neatly with slitting knife.
10. a kind of purposes of diskette as claimed in claim 1 or 2, which is characterized in that the diskette is used for radio energy
Transmission system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810834357.8A CN109102998B (en) | 2018-07-26 | 2018-07-26 | Soft magnetic sheet and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810834357.8A CN109102998B (en) | 2018-07-26 | 2018-07-26 | Soft magnetic sheet and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109102998A true CN109102998A (en) | 2018-12-28 |
| CN109102998B CN109102998B (en) | 2020-12-01 |
Family
ID=64847724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810834357.8A Active CN109102998B (en) | 2018-07-26 | 2018-07-26 | Soft magnetic sheet and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109102998B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741933A (en) * | 2019-01-30 | 2019-05-10 | 宁波中科毕普拉斯新材料科技有限公司 | A kind of wireless charging magnetic conduction piece preparation method of ultrasonic wave auxiliary |
| CN109741913A (en) * | 2018-12-29 | 2019-05-10 | 宁波中科毕普拉斯新材料科技有限公司 | A kind of composite cores and preparation method thereof of controllable magnetic property |
| CN110098043A (en) * | 2019-01-30 | 2019-08-06 | 宁波中科毕普拉斯新材料科技有限公司 | A kind of controllable array wireless charging magnetic conduction piece preparation method |
| CN110853861A (en) * | 2019-11-29 | 2020-02-28 | 横店集团东磁股份有限公司 | Magnetic separation sheet for wireless charging receiving end and preparation method thereof |
| WO2021031191A1 (en) * | 2019-08-22 | 2021-02-25 | 深圳市大疆创新科技有限公司 | Iron core, electronic device, and electronic apparatus |
| CN114068151A (en) * | 2020-07-31 | 2022-02-18 | Tdk株式会社 | Inductance component and DCDC converter using same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01132139A (en) * | 1987-11-18 | 1989-05-24 | Casio Comput Co Ltd | Bump electrode structure of semiconductor device and manufacture thereof |
| JP2005209857A (en) * | 2004-01-22 | 2005-08-04 | Matsushita Electric Ind Co Ltd | Semiconductor device |
| JP2007027687A (en) * | 2005-06-15 | 2007-02-01 | Daido Steel Co Ltd | Low loss compound magnetic sheet |
| CN104011814A (en) * | 2011-12-21 | 2014-08-27 | 阿莫先恩电子电器有限公司 | Magnetic field shielding sheet for a wireless charger, method for manufacturing same, and receiving apparatus for a wireless charger using the sheet |
| CN104900383A (en) * | 2015-04-27 | 2015-09-09 | 安泰科技股份有限公司 | Single/multi-layer magnetic conductive sheet for wireless charging and preparation method thereof |
| CN105336465A (en) * | 2015-10-27 | 2016-02-17 | 安泰科技股份有限公司 | Compound magnetic conductive plate used for wireless charging and near field communication and preparation method thereof |
| CN105632678A (en) * | 2015-12-31 | 2016-06-01 | 安泰科技股份有限公司 | Non-contact type flexible magnetic conductive slice for charging and preparation method therefor |
| 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 |
| CN108146034A (en) * | 2018-01-04 | 2018-06-12 | 苏州微磁新材料有限公司 | Magnetic separator and its preparation method and application |
| CN108293314A (en) * | 2015-11-23 | 2018-07-17 | 阿莫善斯有限公司 | Magnetic shielding unit and Multifunctional composite mould block including it |
-
2018
- 2018-07-26 CN CN201810834357.8A patent/CN109102998B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01132139A (en) * | 1987-11-18 | 1989-05-24 | Casio Comput Co Ltd | Bump electrode structure of semiconductor device and manufacture thereof |
| JP2005209857A (en) * | 2004-01-22 | 2005-08-04 | Matsushita Electric Ind Co Ltd | Semiconductor device |
| JP2007027687A (en) * | 2005-06-15 | 2007-02-01 | Daido Steel Co Ltd | Low loss compound magnetic sheet |
| CN104011814A (en) * | 2011-12-21 | 2014-08-27 | 阿莫先恩电子电器有限公司 | Magnetic field shielding sheet for a wireless charger, method for manufacturing same, and receiving apparatus for a wireless charger using the sheet |
| CN104900383A (en) * | 2015-04-27 | 2015-09-09 | 安泰科技股份有限公司 | Single/multi-layer magnetic conductive sheet for wireless charging and preparation method thereof |
| CN105336465A (en) * | 2015-10-27 | 2016-02-17 | 安泰科技股份有限公司 | Compound magnetic conductive plate used for wireless charging and near field communication and preparation method thereof |
| CN108293314A (en) * | 2015-11-23 | 2018-07-17 | 阿莫善斯有限公司 | Magnetic shielding unit and Multifunctional composite mould block including it |
| 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 |
| CN105632678A (en) * | 2015-12-31 | 2016-06-01 | 安泰科技股份有限公司 | Non-contact type flexible magnetic conductive slice for charging and preparation method therefor |
| CN108146034A (en) * | 2018-01-04 | 2018-06-12 | 苏州微磁新材料有限公司 | Magnetic separator and its preparation method and application |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741913A (en) * | 2018-12-29 | 2019-05-10 | 宁波中科毕普拉斯新材料科技有限公司 | A kind of composite cores and preparation method thereof of controllable magnetic property |
| CN109741933A (en) * | 2019-01-30 | 2019-05-10 | 宁波中科毕普拉斯新材料科技有限公司 | A kind of wireless charging magnetic conduction piece preparation method of ultrasonic wave auxiliary |
| CN110098043A (en) * | 2019-01-30 | 2019-08-06 | 宁波中科毕普拉斯新材料科技有限公司 | A kind of controllable array wireless charging magnetic conduction piece preparation method |
| WO2021031191A1 (en) * | 2019-08-22 | 2021-02-25 | 深圳市大疆创新科技有限公司 | Iron core, electronic device, and electronic apparatus |
| CN110853861A (en) * | 2019-11-29 | 2020-02-28 | 横店集团东磁股份有限公司 | Magnetic separation sheet for wireless charging receiving end and preparation method thereof |
| CN114068151A (en) * | 2020-07-31 | 2022-02-18 | Tdk株式会社 | Inductance component and DCDC converter using same |
| CN114068151B (en) * | 2020-07-31 | 2023-10-27 | Tdk株式会社 | Inductance component and DCDC converter using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109102998B (en) | 2020-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109102998A (en) | A kind of diskette and its preparation method and application | |
| CN105632678B (en) | A kind of contactless charging flexible magnetic conduction thin slice and preparation method thereof | |
| CN109003792A (en) | A kind of diskette and its preparation method and application | |
| JP6283615B2 (en) | MAGNETIC SHIELDING SHEET FOR WIRELESS CHARGER, MANUFACTURING METHOD THEREOF, AND WIRELESS CHARGER RECEIVER USING THE SAME | |
| CN108430203A (en) | A kind of electromagnetic shielding piece and preparation method thereof | |
| CN109887737A (en) | A kind of wireless charging nanocrystalline magnetic conduction thin slice and preparation method thereof | |
| CN109346308A (en) | A kind of nanocrystalline magnetic sheet and its preparation method and application | |
| KR20200032991A (en) | Magnetic Shielding Sheet, Manufacturing Method thereof, Antenna Module and Portable Terminal Using the Same | |
| CN108122669B (en) | Processing method of magnetic material for electromagnetic shielding | |
| CN113284690B (en) | Nanocrystalline magnetic conductive sheet for high-power wireless charging and preparation method thereof | |
| CN102965478A (en) | Heat treatment method for iron-based amorphous strip | |
| CN109451716A (en) | A kind of electromagnetic shielding piece and its preparation method and application | |
| CN108541208A (en) | The preparation method of wireless charging electromagnetic shielding piece | |
| CN110098043B (en) | Preparation method of controllable array type wireless charging magnetic conductive sheet | |
| CN208014534U (en) | Wireless charging magnetic conductive board and wireless charging module, reception device and emitter | |
| CN113388721B (en) | Magnetic field shielding sheet and preparation method and application thereof | |
| CN109741913A (en) | A kind of composite cores and preparation method thereof of controllable magnetic property | |
| CN209516750U (en) | Shielding piece with air gap | |
| CN116130195A (en) | Iron-based amorphous magnetic core material, nanocrystalline magnetic core, magnetic conduction sheet and preparation method of iron-based amorphous magnetic core material | |
| CN208454880U (en) | A kind of magnetic flux absorbing material and wireless telecom equipment | |
| CN109671549A (en) | Wireless charger magnetic conduction sheet and preparation method thereof | |
| CN110364340A (en) | A kind of antifreeze plate and its preparation method and application | |
| CN210091883U (en) | Iron-based nanocrystalline alloy magnetic core with ultralow magnetic permeability | |
| CN109741933B (en) | Ultrasonic-assisted preparation method of wireless charging magnetic conductive sheet | |
| CN115474420A (en) | Preparation process of high-performance wireless charging electromagnetic shielding sheet and electromagnetic shielding sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200724 Address after: 224000 Dongtai Economic Development Zone, Yancheng City, Jiangsu Province, through the east side of the eight road Applicant after: LINGSHENGCHENG TECHNOLOGY (JIANGSU) Co.,Ltd. Address before: 529000 G-Y Axis, No. 01 Dongping Road, Gonghe Town, Heshan City, Jiangmen City, Guangdong Province Applicant before: JIANGMEN HUIDING TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |