CN108076620A - Electromagnetic wave shielding sheet, magnetic piece making method and magnetic piece roller for producing - Google Patents
Electromagnetic wave shielding sheet, magnetic piece making method and magnetic piece roller for producing Download PDFInfo
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- CN108076620A CN108076620A CN201710569786.2A CN201710569786A CN108076620A CN 108076620 A CN108076620 A CN 108076620A CN 201710569786 A CN201710569786 A CN 201710569786A CN 108076620 A CN108076620 A CN 108076620A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 9
- 230000005389 magnetism Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910001004 magnetic alloy Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000005300 metallic glass Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002159 nanocrystal Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- -1 Fe becomes higher Chemical class 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 229910008423 Si—B Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
-
- 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
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/212—Electromagnetic interference shielding
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Manufacturing & Machinery (AREA)
- Signal Processing (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Hard Magnetic Materials (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The present invention discloses a kind of electromagnetic wave shielding sheet, magnetic piece making method and magnetic piece roller for producing.The electromagnetic wave shielding sheet includes：Magnetic piece is made of metal tape, wherein, the magnetic piece includes：A variety of broken trace portions, it is formed due to broken, and with prominent stereochemical structure, there is the flat site of tilting zone and the central portion for being arranged in tilting zone in the broken trace portion, the size of a variety of broken respective flat sites in trace portion and the height of stereochemical structure are inversely proportional.
Description
Technical field
The present invention relates to a kind of electromagnetic wave shielding sheet, magnetic piece making method and magnetic piece roller for producing.
Background technology
Recently, in Mobile portable formula device using wireless charging (WPC) function, wireless near field communication (NFC) function,
E-payment (MST) function etc..
For wireless charging (WPC), wireless near field communication (NFC), e-payment (MST) technology, in work frequency
Rate, data transmission rate, amount of electric power of transmission etc. have differences.
On the other hand, due to the miniaturization and lightweight of electronic equipment, wireless charging (WPC) function, closely is being performed
The flexible utilization in space becomes important when wireless communication (NFC) function, e-payment (MST) function.However, wireless charging
(WPC), the respective working frequency of wireless near field communication (NFC), e-payment (MST) technology is different, and required screen
It is different to cover the magnetic conductivity in portion, therefore there is the difficulties needed using each magnetic piece formed by xenogenesis magnetic material.
[prior art literature]
[patent document]
(patent document 1) Korean Patent Laid the 2009-0113418th
The content of the invention
The present invention provide it is a kind of with the magnetic piece being made of single material and can in various frequency range quilt
The electromagnetic wave shielding sheet used.
Also, the present invention provides a kind of magnetic piece being made of single material that can be used in various frequency range
Manufacturing method.
And then it is made of the present invention also provides a kind of for what manufacture can use in various frequency range single material
Magnetic piece magnetic piece roller for producing.
Electromagnetic wave shielding sheet according to an embodiment of the invention includes：Magnetic piece is made of wire belt, wherein,
The magnetic piece includes：A variety of broken trace portions are formed due to broken, and with prominent stereochemical structure, wherein, in the broken trace
Portion has tilting zone and is arranged in the flat site of the central portion of tilting zone, a variety of broken respective flat sites in trace portion
Size and the height of stereochemical structure be inversely proportional.
The magnetic piece making method of an embodiment according to the present invention includes the following steps：Pass through the magnetic with a variety of protrusions
Property piece roller for producing and the magnetic piece that pressurizes, so as to the magnetic piece formed with stereochemical structure a variety of broken trace portions, wherein,
The broken trace portion has the flat site of tilting zone and the central portion for being arranged in tilting zone, and a variety of broken trace portions are respective
The size of flat site and the height of stereochemical structure are inversely proportional.
The magnetic piece roller for producing of an embodiment according to the present invention includes：Main body can rotate；And a variety of protrusions,
The surface of the main body is formed at, wherein, there is the flat of rake and the central portion that is arranged in rake in a variety of protrusions
Smooth portion, the size of a variety of respective flat parts of protrusion and the height of protrusion are inversely proportional.
The present invention has the effect that can be used in the magnetic piece being made of single material in various frequency range.
The present invention has the effect that can efficiently produce the single magnetic piece that can be used in various frequency range.
And then the present invention has the technique effect that can simplify manufacturing process.
Description of the drawings
Fig. 1 is the stereoscopic figure of common wireless charging system.
Fig. 2 is the sectional view that the main inside of Fig. 1 is formed to decomposition diagram.
Fig. 3 is the plan view of the magnetic piece for the electromagnetic wave shielding sheet for representing first embodiment according to the present invention.
Fig. 4 is the enlarged cross-sectional view for the part A for representing Fig. 3.
Fig. 5 is the plan view for the first variant embodiment for representing broken trace portion.
Fig. 6 is the plan view for the second variant embodiment for representing broken trace portion.
Fig. 7 is the plan view for the 3rd variant embodiment for representing broken trace portion.
Fig. 8 is the plan view for the 4th variant embodiment for representing broken trace portion.
Fig. 9 is for illustrating the description of the process figure of the magnetic piece making method of first embodiment according to the present invention.
Figure 10 is the stereogram for the magnetic piece roller for producing for representing first embodiment according to the present invention.
Figure 11 is the sectional view for the magnetic piece roller for producing for representing first embodiment according to the present invention.
Symbol description
100：Electromagnetic wave shielding sheet
120：Magnetic piece
140：Broken trace portion
200：Magnetic piece roller for producing
Optimal embodiment
Hereinafter, the form that is preferably implemented of the present invention is illustrated referring to the drawings.However, the implementation form of the present invention can
Various other forms are deformed into, the scope of the present invention is not limited to implementation form described below.Also, provide the present invention's
The purpose of implementation form is the present invention being described more fully to possessing average knowledge in the technical field of the invention
Personnel.In the accompanying drawings, the exaggerations such as the form and dimension of element may be shown in the accompanying drawings for explanation definitely.
Fig. 1 is the stereoscopic figure of common wireless charging system, and Fig. 2 is that the main inside of Fig. 1 is formed decomposition diagram
Sectional view.
Referring to Figures 1 and 2, common wireless charging system can be by electronic device Contactless power transmission device 10 and radio
Power reception device 20 is formed, and wireless power reception device 20 may be included with the electricity of mobile phone, laptop, tablet computer etc
Sub- equipment.
The inside of Contactless power transmission device 10 is observed, is formed with sending part coil 11 on the substrate 12, therefore when exchange
When voltage is applied to Contactless power transmission device 10, magnetic field is formed around.Accordingly, it is being built in wireless power reception device 20
Receiving part coil 21 sense to generate due to sending part coil 11 and electromotive force and can be electrically charged battery 22 accordingly.
Battery 22 can be the Ni-MH battery or lithium ion battery that can be charged and discharged, however be not particularly limited in
This.Moreover, battery 22 can individually form with wireless power reception device 20 and with removable in wireless power reception device 20
The one-piece type realization that the form of dress is realized or can also be integrally formed by battery 22 and wireless power reception device 20.
Sending part coil 11 and receiving part coil 21 can electromagnetic coupling, and can be by the way that the metal wires such as copper be wound to be formed.
In the case, winding shape can be circle, ellipse, quadrangle, diamond shape etc., and can will be whole according to required characteristic
The size of body or winding number etc. are suitably controlled and set.
Be disposed with magnetic piece 120 between receiving part coil 21 and battery 22, magnetic piece 120 be located at receiving part coil 21 with
Between battery 22, and by the way that magnetic flux boundling is efficiently received magnetic flux to be made to be received 21 side of portion's coil.At the same time, magnetic
Property piece 120 play block magnetic flux at least a portion reach battery 22 function.
This magnetic piece 120 can with coil part with reference to and be applied to receiving part of above-mentioned wireless charging device etc..And
And in addition to wireless charging device, the coil part can be applied to magnetic security transmission (MST), near radio leads to
Believe (NFC) etc..Also, magnetic piece 120 can also be applied to the sending part rather than receiving part of wireless charging device.Hereinafter, exist
In the case of particularly distinguishing, sending part and receiving part coil are referred to as coil part.Hereinafter, magnetic piece 120 is carried out
More detailed description.
Fig. 3 is the plan view of the magnetic piece for the electromagnetic wave shielding sheet for representing first embodiment according to the present invention, and Fig. 4 is table
The enlarged cross-sectional view of the part A of diagram 3.
With reference to Fig. 3, the electromagnetic wave shielding sheet 100 of first embodiment according to the present invention includes (with reference to Fig. 2) by metal tape
The magnetic piece 120 of composition, magnetic piece 120 include：A variety of broken trace portions 140 are formed by broken, and with prominent three-dimensional knot
Structure.The detailed description to broken trace portion 140 will hereinafter be carried out.
In addition, the metal tape for the thin plate being made of non-crystaline amorphous metal or nanometer crystal alloy can be used in magnetic piece 120.The magnetism
Piece 120 can have soft magnetism or ferromagnetism characteristic.It is used for the metal tape of the magnetic piece 120 as the magnetic with high magnetic permeability
Property material, magnetic permeability value change according to degree of crushing.
Fe systems or Co series magnetic alloys can be used in the non-crystaline amorphous metal.Fe series magnetic alloys can for example use Fe-Si-B
Alloy, as the content of the metals such as Fe becomes higher, saturation flux density also becomes higher, but the situation of the too high levels in Fe elements
Under, it is difficult to form noncrystalline, therefore the content of Fe can be 70-90 atoms %, Si and B's and the scope in 10-30 atoms %
The amorphous formation ability of alloy is fitst water when interior.In order to prevent from corroding in above-mentioned basic composition, can add 20 atom % with
The corrosion resistances element such as interior Cr, Co, and it is special to assign other as needed and comprising other a small amount of metallic elements
Property.
The nanometer crystal alloy can use Fe system nano-crystal magnetic alloys.Fe system nano-crystals alloy can use Fe-Si-
B-Cu-Nb alloys.
Magnetic piece 120 can have：First area 122, is arranged in central portion；Second area 124, is arranged in first area
Around 122；3rd region 126 is arranged in around second area 124.As an example, first area 122 can have substantially
The shape of quadrangle, 124 and the 3rd region 126 of second area can have quadrangular tapes shape.
However, it is not limited to this, first area 122, second area 124, the shape in the 3rd region 126 can diversely change
Become.
In addition, the first area 122 of magnetic piece 120 can be region corresponding with wireless charging (WPT) region, the secondth area
Domain 124 can be region corresponding with magnetic security transmission (MST) region, and the 3rd region 126 can be led to near radio
Believe the corresponding region in (NFC) region.
Also, broken trace portion 140 has the stereochemical structure at sun quarter in the one side of magnetic piece 120, and in the another of magnetic piece 120
Face has the cloudy stereochemical structure carved.And then broken trace portion 140 is formed as arranging regularly.
In addition, broken trace portion 140 can have：First broken trace portion 143, is arranged in first area 122；Second broken trace portion 144, cloth
It is placed in the 3rd region 126.Moreover, broken trace portion 140 can have tilting zone 141 and be arranged in the central portion of tilting zone 141
Flat site 142.
And then the size of a variety of 140 respective flat sites 142 of broken trace portion and the height of stereochemical structure are inversely proportional.That is,
The size s1 of the flat site 142 in one broken trace portion 143 is more than the size s2 of the flat site 142 in the second broken trace portion 144, and first is broken
The height h1 in trace portion 143 is less than the height h2 in the second broken trace portion 144.
Moreover, broken trace portion 140 can have the stereochemical structure of pyramid or cone shape.And then the bottom surface in broken trace portion 140 can be with
It is at least one of triangle, quadrangle, pentagon, hexagon, circle shape.
In the accompanying drawings, the bottom surface in broken trace portion 140 is shown as quadrangle, broken trace portion 140 has the situation of rectangular pyramid shape,
However it's not limited to that, the shape in broken trace portion 140 can diversely change.
In addition, though scheming by taking the situation that the flat site 142 in the second broken trace portion 144 has the shape of quadrangle as an example
In show, however the flat site in the second broken trace portion 144 can also be made of point.
The magnetic piece 120 being made of metal tape of first embodiment according to the present invention forms a variety of broken trace portions when broken
140, and a variety of broken trace portions 140 are regularly formed.In the case, as shown in figure 3, well-regulated situation includes following feelings
Shape：The well-regulated situation of shape of the stereochemical structure；And with multiple stereochemical structures and the stereochemical structure it is regular
Ground arranges, and represents to correspond at least one situation in said circumstances.
Wireless charging is with the magnetic properties of the magnetic piece included in electromagnetic wave shielding sheet (for example, magnetic conductivity, core loss
(core loss) etc.) according to the shape of broken broken trace, the size of fragment, shape isostructuralism factor and change.This magnetism
Characteristic has an impact efficiency in wireless charging (WPT), magnetic security transmission (MST), wireless near field communication (NFC)
Primary variables.In addition, in order to efficiency optimization, it is necessary to freely adjust the magnetic properties such as magnetic conductivity, and need to adjust accordingly
Metal tape magnetic piece crushes.
However, it is previous usually using the magnetic piece brokenly randomly crushed, therefore by adjusting magnetic piece
Magnetic properties and realize wireless charging (WPT), magnetic security transmission (MST), wireless near field communication (NFC) when efficiency optimization
There are limitations during change.That is, for the magnetic piece brokenly randomly crushed of such as prior art, the structure of magnetic piece
Property reproducibility is relatively low, moreover, it is difficult to steadily ensure magnetic properties.Moreover, brokenly broken magnetic piece growth encourage is worn
Out of orderization of the magnetic line of force of magnetic piece is crossed, therefore there are problems that also generating negative influence as the efficiency of shielding piece.
Therefore, solves the above problem by the following method：For the electromagnetism wave screen of first embodiment according to the present invention
The magnetic piece 120 for covering piece 100 is induced well-regulated broken using the breaking tool that can assign systematicness, and then makes a variety of broken traces
The size S of 140 respective flat site 142 of portion has the shape that the height H with stereochemical structure is inversely proportional.
And then the controllable magnetic properties by region.That is, it is adjustable as by second area 124, first area 122 and
The order in three regions 126 and with high magnetic permeability, so as to control magnetic properties.
Accordingly, each complex function can be directed to, realizes the raising of performance.
Fig. 5 is the plan view for the first variant embodiment for representing broken trace portion.
With reference to Fig. 5, a variety of broken trace portions 240 have roughly conical shape.I.e., as an example, the bottom surface in a variety of broken trace portions 140
Can be circular or ellipse, the upper surface in broken trace portion 140 can have the width smaller than the bottom surface in broken trace portion 140.
In addition, a variety of broken trace portions 240 can have the first broken 243 and second broken trace portion 244 of trace portion.As an example, first is broken
The flat site 242 in trace portion 243 can be made of point, and the flat site 242 in the second broken trace portion 244 can have circular or ellipse
The shape of shape.
Fig. 6 is the plan view for the second variant embodiment for representing broken trace portion.
With reference to Fig. 6, a variety of broken trace portions 340 can have substantially triangular pyramid shape.I.e., as an example, a variety of broken trace portions 340
Bottom surface can be general triangular, and the upper surface in broken trace portion 340 can have the width smaller than the bottom surface in broken trace portion 340.
In addition, a variety of broken trace portions 340 can have the first broken 343 and second broken trace portion 344 of trace portion.As an example, first is broken
The flat site 342 in trace portion 343 can be made of point, and the flat site 342 in the second broken trace portion 344 can have the shape of triangle.
Fig. 7 is the plan view for the 3rd variant embodiment for representing broken trace portion.
With reference to Fig. 7, a variety of broken trace portions 440 can have substantially pentagonal pyramid shape.I.e., as an example, a variety of broken trace portions 440
Bottom surface can be that substantially pentagon, the upper surface in broken trace portion 440 can have the width smaller than the bottom surface in broken trace portion 440.
In addition, a variety of broken trace portions 440 can have the first broken 443 and second broken trace portion 444 of trace portion.As an example, first is broken
The flat site 442 in trace portion 443 can be made of point, and the flat site 442 in the second broken trace portion 444 can have pentagonal shape.
Fig. 8 is the plan view for the 4th variant embodiment for representing broken trace portion.
With reference to Fig. 8, a variety of broken trace portions 540 can have substantially hexagonal pyramid shape.I.e., as an example, a variety of broken trace portions 540
Bottom surface can be that substantially hexagon, the upper surface in broken trace portion 540 can have the width smaller than the bottom surface in broken trace portion 540.
In addition, a variety of broken trace portions 540 can have the first broken 543 and second broken trace portion 544 of trace portion.As an example, first is broken
The flat site 542 in trace portion 543 can be made of point, and the flat site 542 in the second broken trace portion 544 can have the shape of hexagon.
Fig. 9 is for illustrating the description of the process figure of the magnetic piece making method of first embodiment according to the present invention, Figure 10
To represent the stereogram of the magnetic piece roller for producing of first embodiment according to the present invention, Figure 11 is represents according to the present invention the
The sectional view of the magnetic piece roller for producing of one embodiment.
With reference to Fig. 9, by magnetic piece roller for producing 200 and the magnetic piece 120 that pressurizes, so as to have in the formation of magnetic piece 120
A variety of broken trace portions 140 of stereochemical structure.
That is, the bottom surface for the magnetic piece 120 that pressurizes using magnetic piece roller for producing 200, thus as described above, in magnetic piece
120 form a variety of broken trace portions 140.
In addition, with reference to Figure 10 and Figure 11, magnetic piece roller for producing 200 may include rotatable main body 210 and be formed at
A variety of protrusions 220 on the surface of main body 210 and form.
In addition, main body 210 can have：First forming portion 212, the first area of the central portion with being arranged in magnetic piece 120
122 correspond to, and are disposed with the first protrusion 222；Second forming portion 214, the shape in a manner of there is step difference with the first forming portion 212
Into, and it is corresponding with the second area 124 of magnetic piece 120；3rd forming portion 216, to form step difference with the second forming portion 214
Mode is formed, and corresponding with the 3rd region 126 of magnetic piece 120, and is disposed with the second protrusion 224.
Also, 212 to the second forming portion 214 of the first forming portion is protruded and arranged, 216 to the second forming portion of the 3rd forming portion
214 protrude and arrange.
Also, a variety of protrusions 220 have the flat part of rake 220a and the central portion for being arranged in rake 220a
220b,.And then the size of flat part 220b and the height of protrusion 220 are inversely proportional.In addition, a variety of protrusions 220 can be by the first protrusion
222 and second protrusion 224 form, first protrusion 222 be used for magnetic piece 120 central portion formed the first broken trace portion 143,
Second protrusion 224 is used to form the second broken trace portion 144 in the marginal position of magnetic piece 120.
In addition, the size s3 of the flat part 220b of the first protrusion 222 is formed as the flat part 220b's than the second protrusion 224
Size s4 is big.Also, the height h3 of the first protrusion 222 is formed as lower than the height h4 of the second protrusion 224.
Accordingly, the height h1 in the first broken trace portion 143 formed by the first protrusion 222 is formed as than by 224 shape of the second protrusion
Into the second broken trace portion 144 height h2 it is low.And then the flat site in the first broken trace portion 143 formed by the first protrusion 222
The size s2 that 142 size s1 is formed as the flat site 142 in trace portion 144 more broken than second formed by the second protrusion 224 is big.
As described above, by mutually different first protrusion 222 of size, the second protrusion 224 and with mutually different pressure
The first broken trace portion 143, the second broken trace portion 144 are formed in magnetic piece 120.It then, can be by adjusting the first broken trace portion 143, second
The cataclasitlc structure in broken trace portion 144 and easily adjust the magnetic properties of magnetic piece 120.
More than, the embodiment of the present invention is described in detail, however the interest field of the present invention does not limit
In this, various modification and change can be achieved in the range of the technological thought of the present invention described in claim is not departed from
Shape, this for the personnel of basic knowledge is obvious for possessing in the technical field belonging to the present invention.
Claims (17)
1. a kind of electromagnetic wave shielding sheet, including：
Magnetic piece is made of metal tape,
Wherein, the magnetic piece includes a variety of broken trace portions, and a variety of broken trace portions are broken and are formed, and with prominent solid
Structure,
There is the flat site of tilting zone and the central portion for being arranged in tilting zone in the broken trace portion,
The size of a variety of broken respective flat sites in trace portion and the height of stereochemical structure are inversely proportional.
2. electromagnetic wave shielding sheet as described in claim 1, wherein, the magnetic piece has：
First area is arranged in central portion；
Second area is arranged in around the first area；And
3rd region is arranged in around the second area.
3. electromagnetic wave shielding sheet as claimed in claim 2, wherein, the broken trace portion has：
First broken trace portion, is arranged in the first area；And
Second broken trace portion, is arranged in the 3rd region.
4. electromagnetic wave shielding sheet as claimed in claim 3, wherein,
The size of the flat site in the first broken trace portion is more than the size of the flat site in the described second broken trace portion,
The height in the first broken trace portion is less than the height in the described second broken trace portion.
5. electromagnetic wave shielding sheet as claimed in claim 4, wherein, the broken trace portion in the one side of the magnetic piece there is sun to carve
Stereochemical structure, and there is the cloudy stereochemical structure carved in the another side of the magnetic piece.
6. electromagnetic wave shielding sheet as described in claim 1, wherein, the broken trace portion regularly forms.
7. electromagnetic wave shielding sheet as described in claim 1, wherein, the broken trace portion has the three-dimensional knot of pyramid or cone shape
Structure.
8. electromagnetic wave shielding sheet as claimed in claim 7, wherein, the bottom surface in the broken trace portion has triangle, quadrangle, five
At least one of side shape, hexagon, circle shape.
9. a kind of magnetism piece making method, includes the following steps：
By the magnetic piece roller for producing with a variety of protrusions and the magnetic piece that pressurizes, so that being formed in the magnetic piece has solid
A variety of broken trace portions of structure,
Wherein, there is the flat site of tilting zone and the central portion for being arranged in tilting zone in the broken trace portion,
The size of a variety of broken respective flat sites in trace portion and the height of stereochemical structure are inversely proportional.
10. magnetism piece making method as claimed in claim 9, wherein, a variety of protrusions are by the first protrusion and the second protrusion
It forms,
First protrusion forms the first broken trace portion in the central portion of the magnetic piece,
Second protrusion forms the second broken trace portion in the marginal position of the magnetic piece.
11. magnetism piece making method as claimed in claim 10, wherein, the magnetic piece roller for producing has：
First forming portion, it is corresponding with being arranged in the first area of central portion of the magnetic piece, and it is disposed with first protrusion；
Second forming portion is formed in a manner of forming step difference with first forming portion, and corresponding to the of the magnetic piece
Two regions；And
3rd forming portion is formed in a manner of forming step difference with second forming portion, and corresponding to the of the magnetic piece
Three regions, and second protrusion is disposed with,
Wherein, when by the magnetic piece roller for producing and pressurize the magnetic piece when, the magnetic piece formed with the magnetic
First forming portion of property piece roller for producing, the second forming portion, the corresponding first area of the 3rd forming portion, second area,
Three regions.
12. magnetism piece making method as claimed in claim 10, wherein, the height of first protrusion is prominent less than described second
The height risen, thus when by the roller and pressurize the magnetic piece when, the height in the first broken trace portion is less than described second
The height in broken trace portion.
13. magnetism piece making method as claimed in claim 11, wherein,
First forming portion is more prominent than second forming portion and arranges,
3rd forming portion is more prominent than second forming portion and arranges.
14. a kind of magnetic piece roller for producing, including：
Main body can rotate；And
A variety of protrusions are formed at the surface of the main body,
Wherein, there is the flat part of rake and the central portion for being arranged in rake in a variety of protrusions,
The size of the respective flat part of a variety of protrusions and the height of protrusion are inversely proportional.
15. magnetic piece roller for producing as claimed in claim 14, wherein, a variety of protrusions are by the first protrusion and the second protrusion
It forms,
First protrusion forms the first broken trace portion in the central portion of magnetic piece,
Second protrusion forms the second broken trace portion in the marginal position of the magnetic piece.
16. magnetic piece roller for producing as claimed in claim 15, wherein, the main body has：
First forming portion, it is corresponding with being arranged in the first area of central portion of the magnetic piece, and it is disposed with first protrusion；
Second forming portion is formed in a manner of forming step difference with first forming portion, and corresponding to the of the magnetic piece
Two regions；And
3rd forming portion is formed in a manner of forming step difference with second forming portion, and corresponding to the of the magnetic piece
Three regions, and it is disposed with second protrusion.
17. magnetic piece roller for producing as claimed in claim 16, wherein,
First forming portion is more prominent than second forming portion and arranges,
3rd forming portion is more prominent than second forming portion and arranges.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160151987A KR20180054261A (en) | 2016-11-15 | 2016-11-15 | Sheet for shielding electromagneric wave, manufacturing method of magnetic sheet and roller therefore |
| KR10-2016-0151987 | 2016-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108076620A true CN108076620A (en) | 2018-05-25 |
| CN108076620B CN108076620B (en) | 2020-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720852153.8U Active CN207075174U (en) | 2016-11-15 | 2017-07-13 | Electromagnetic wave shielding sheet and magnetic piece roller for producing |
| CN201710569786.2A Active CN108076620B (en) | 2016-11-15 | 2017-07-13 | Electromagnetic wave shielding sheet, method for producing magnetic sheet, and roller for producing magnetic sheet |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720852153.8U Active CN207075174U (en) | 2016-11-15 | 2017-07-13 | Electromagnetic wave shielding sheet and magnetic piece roller for producing |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20180054261A (en) |
| CN (2) | CN207075174U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180054261A (en) * | 2016-11-15 | 2018-05-24 | 삼성전기주식회사 | Sheet for shielding electromagneric wave, manufacturing method of magnetic sheet and roller therefore |
| KR102077944B1 (en) * | 2018-10-26 | 2020-02-14 | 에스케이씨 주식회사 | Crack forming device and preperation method of magnetic sheet with cracks |
| KR102026451B1 (en) * | 2019-02-28 | 2019-09-30 | 주식회사 디에스텔레콤 | Method for manufacturing Film for protecting cognition error |
| KR20220034413A (en) * | 2020-09-11 | 2022-03-18 | 삼성전자주식회사 | Electronic device including shielding sheet |
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| 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 |
| CN105348802A (en) * | 2015-11-26 | 2016-02-24 | 深圳唯创微波技术有限公司 | Flexible microwave absorption structure and preparation method therefor |
| US20160223722A1 (en) * | 2015-02-03 | 2016-08-04 | Samsung Display Co., Ltd. | Display device and method of manufacturing the same |
| CN105845382A (en) * | 2015-01-30 | 2016-08-10 | 三星电机株式会社 | Magnetic sheet and coil assembly including same |
| CN207075174U (en) * | 2016-11-15 | 2018-03-06 | 三星电机株式会社 | Electromagnetic wave shielding sheet and magnetic piece roller for producing |
-
2016
- 2016-11-15 KR KR1020160151987A patent/KR20180054261A/en unknown
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- 2017-07-13 CN CN201720852153.8U patent/CN207075174U/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845382A (en) * | 2015-01-30 | 2016-08-10 | 三星电机株式会社 | Magnetic sheet and coil assembly including same |
| US20160223722A1 (en) * | 2015-02-03 | 2016-08-04 | Samsung Display Co., Ltd. | Display device and method of manufacturing the same |
| 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 |
| CN105348802A (en) * | 2015-11-26 | 2016-02-24 | 深圳唯创微波技术有限公司 | Flexible microwave absorption structure and preparation method therefor |
| CN207075174U (en) * | 2016-11-15 | 2018-03-06 | 三星电机株式会社 | Electromagnetic wave shielding sheet and magnetic piece roller for producing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207075174U (en) | 2018-03-06 |
| KR20180054261A (en) | 2018-05-24 |
| CN108076620B (en) | 2020-03-03 |
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