CN207166962U - Wireless charging electromagnetic wave shielding sheet - Google Patents

Wireless charging electromagnetic wave shielding sheet Download PDF

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Publication number
CN207166962U
CN207166962U CN201720838810.3U CN201720838810U CN207166962U CN 207166962 U CN207166962 U CN 207166962U CN 201720838810 U CN201720838810 U CN 201720838810U CN 207166962 U CN207166962 U CN 207166962U
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CN
China
Prior art keywords
hole
wireless charging
electromagnetic wave
wave shielding
shielding sheet
Prior art date
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Active
Application number
CN201720838810.3U
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Chinese (zh)
Inventor
赵中英
吴胜熙
李承珉
张宰赫
崔畅学
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Wits Co Ltd
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Samsung Electro Mechanics Co Ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
    • H05K9/0086—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a single discontinuous metallic layer on an electrically insulating supporting structure, e.g. metal grid, perforated metal foil, film, aggregated flakes, sintering
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • 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
    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • 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
    • 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
    • B32B2457/00—Electrical equipment

Abstract

The utility model discloses a kind of wireless charging electromagnetic wave shielding sheet.It includes：Magnetic piece, for shielding from electromagnetic wave caused by wireless charging coil；And bonding sheet, it is bonded with the magnetic piece, wherein, in the bonding sheet formed with multiple holes.

Description

Wireless charging electromagnetic wave shielding sheet
Technical field
It the utility model is related to a kind of wireless charging electromagnetic wave shielding sheet.
Background technology
Recently, in Mobile portable formula device using wireless charging (WPC) function, wireless near field communication (NFC) function, E-payment (MST) function etc..Wireless charging (WPC), near-field communication (NFC), e-payment (MST) technology working frequency, Data transmission rate, the electricity transmitted etc. are variant.
For this Contactless power transmission device, using playing the wireless of the function of electromagnetic wave shielding and boundling etc. Charging electromagnetic wave shielding sheet, for example, in wireless charging device, arrange that wireless charging is used between acceptance division coil and battery Electromagnetic wave shielding sheet.Wireless charging electromagnetic wave shielding sheet in magnetic field shielding caused by acceptance division coil and boundling by will hinder Keep off it and reach battery, received so as to play effectively send from electromagnetic wave caused by Contactless power transmission device to wireless power The effect of device.
【Prior art literature】
【Patent document】
(patent document 1) Japanese Laid-Open Patent Publication the 2013-84975th
Utility model content
A kind of wireless charging electromagnetic wave shielding sheet that can prevent trapped bubbles phenomenon is provided.
Included according to the wireless charging of an embodiment of the present utility model with electromagnetic wave shielding sheet：Magnetic piece, for shielding From electromagnetic wave caused by wireless charging coil；And bonding sheet, it is bonded with the magnetic piece, wherein, can in the bonding sheet To form multiple holes.
The multiple hole can be formed as having multiple row and row.
The multiple hole can be regularly arranged.
The hole can have at least one of pin hole or slit shape.
When having pin hole shape in the multiple hole, the pin hole can have polygonal shape.
When having pin hole shape in the hole, the pin hole can be the curvilinear figure shape for having curvature.
When having shape of slit in the hole, the slit can be formed along one direction.
When having shape of slit in the hole, the hole can be by the first hole for being formed along one direction and along with described the The second hole that the direction that one hole intersects is formed is formed.
The magnetic piece can be made up of metal tape.
The magnetic piece can be equipped with multiple.
Included according to the wireless charging of another embodiment of the present utility model with electromagnetic wave shielding sheet：Magnetic piece, by metal Band is formed and is equipped with multiple；Bonding sheet, it is bonded formed with multiple holes, and with the magnetic piece, also, the hole has pin hole With at least one of slit shape.
The multiple hole can be regularly arranged.
The multiple hole can be formed as having multiple row and row.
When having pin hole shape in the hole, the pin hole can have polygonal shape.
When having pin hole shape in the hole, the pin hole can be the curvilinear figure shape for having curvature.
When having shape of slit in the hole, the slit can be formed along one direction.
When there is shape of slit in the hole, the slit can by the first hole for being formed along one direction and along with it is described The second hole that the direction that first hole intersects is formed is formed.
With the effect that can prevent trapped bubbles phenomenon.
Brief description of the drawings
Fig. 1 is the stereoscopic figure of common wireless charging system.
Fig. 2 is to decompose the profile for showing that Fig. 1 main inside is formed.
Fig. 3 is the exploded perspective for showing the wireless charging electromagnetic wave shielding sheet according to first embodiment of the present utility model Figure.
Fig. 4 is the stereogram for the first variant embodiment for showing bonding sheet.
Fig. 5 is the stereogram for the second variant embodiment for showing bonding sheet.
Fig. 6 is the stereogram for the 3rd variant embodiment for showing bonding sheet.
Symbol description
100:Wireless charging electromagnetic wave shielding sheet 120:Magnetic piece
140:Bonding sheet
Embodiment
Form is preferable to carry out hereinafter, with reference to the accompanying drawings of of the present utility model.However, embodiment of the present utility model can By be deformed into it is various other in the form of, the scope of the utility model is not limited to embodiment described below.Additionally, it is provided this The purpose of the embodiment of utility model is in order to the technology in the utility model art with average knowledge Personnel are described more fully the utility model.In figure, for explanation definitely, the form and dimension of key element etc. may Exaggerated.
Fig. 1 is the stereoscopic figure of common wireless charging system, and Fig. 2 is cuing open for the main inside composition that decomposition shows Fig. 1 Face figure.
Reference picture 1 and Fig. 2, common wireless charging system can be received by Contactless power transmission device 10 and wireless power and filled Put 20 compositions.
The Contactless power transmission device 10 is the device that magnetic field is produced around, and the wireless power reception device 20 is The device of power source charges is realized with magnetic induction way accordingly, the wireless power reception device 20 can be presented as mobile phone, notes The electronic equipment of the variforms such as this computer, tablet personal computer.
The inside of the Contactless power transmission device 10 is observed, due on the substrate 12 formed with sending part coil 11, because If this applies alternating voltage to the Contactless power transmission device 10, magnetic field is formed around.Accordingly, be built in it is described The acceptance division coil 21 of wireless power reception device 20 produce from the sending part coil 11 induction electromotive force, so as to so that Battery 22 is electrically charged.
The battery 22 can be can discharge and recharge Ni-MH battery or lithium ion battery, but be not defined in especially This.Also, the battery 22 is individually formed with the wireless power reception device 20, can be described so as to be presented as The assembly and disassembling type that wireless power reception device 20 is loaded and unloaded, or can also be presented as that the battery 22 receives with the wireless power and fill Put 20 be integrally formed it is one-piece type.
The sending part coil 11 of electromagnetic coupled is entwined with acceptance division coil 21 by metal wires such as copper, and it winds shape Shape can be circle, ellipse, quadrangle, rhombus etc., and overall size or winding number etc. can fit according to required characteristic Locality control setting.
Wireless charging electromagnetic wave shielding sheet 100 can be disposed between the acceptance division coil 21 and battery 22.Institute Wireless charging electromagnetic wave shielding sheet 100 is stated between the acceptance division coil 21 and battery 22 and plays and stops from acceptance division Magnetic field caused by coil 21 reaches the effect of battery 22.
Fig. 3 is the exploded perspective for showing the wireless charging electromagnetic wave shielding sheet according to first embodiment of the present utility model Figure.
Reference picture 3, for example can be with according to the wireless charging electromagnetic wave shielding sheet 100 of first embodiment of the present utility model Formed including magnetic piece 120 and bonding sheet 140.
Magnetic piece 120 can be made up of at least two thin plates.In addition, magnetic piece 120 can use by non-crystaline amorphous metal or receive The metal tape for the thin plate that rice peritectic alloy is formed.The magnetic piece 120 can have soft magnetism or ferromagnetism characteristic.For the magnetic Property piece 120 metal tape be the magnetic material with higher magnetic conductivity, its magnetic permeability value becomes according to the degree crushed.
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 uprises, saturation flux density also uprises, but the situation of the too high levels in Fe elements Under, it is difficult to form noncrystalline, therefore Fe content 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, additionally it is possible to add 20 atom % Within the corrosion resistance element such as Cr, Co, and other can be assigned comprising other a small amount of metallic elements as needed Characteristic.
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.
Also, magnetic piece 120 can be equipped with multiple.That is, multiple magnetic pieces 120 play pair in wireless charging device etc. The shielding in magnetic field and collection beam function, and be formed as sandwich construction, therefore further can strengthen shielding, collect beam function.
Also, when being equipped with multiple magnetic pieces 120, size magnetic piece 120 different from each other can be used, according to magnetic piece 120 stacking quantity and size, the shielding rate and boundling rate in magnetic field can be adjusted.
In addition, when manufacturing magnetic piece 120, a plate with thicker thickness is manufactured into compared to by magnetic piece 120 And the shielding rate and boundling rate in magnetic field are adjusted, the multiple magnetic pieces 120 being made up of the metal tape of thin plate are laminated and adjust magnetic When the shielding rate and boundling rate of field, it is simple to manufacture, while the shielding rate and boundling rate in magnetic field can be more easily adjusted.
And then from the point of view of compatible aspect, a plate with thicker thickness is manufactured into compared to by magnetic piece 120 Situation, the situation for being laminated multiple magnetic pieces 120 and manufacturing may be more outstanding.
Bonding sheet 140 is the composition for being bonded at least two magnetic pieces 120, can be possessed on the two sides of bonding sheet 140 For being bonded the adhesive layer (not shown) of magnetic piece 120.That is, can be fitted with respectively with bottom surface in the upper surface of bonding sheet 140 Magnetic piece 120.
Adhesive layer can use usually used adhesion substance, for example, it is known that resin combination, and can use make The physical bond of magnetic piece 120 forms chemically combined material etc. with the magnetosphere of magnetic piece 120.
And then it could be formed with multiple holes 142 in bonding sheet 140.The multiple hole 142 be formed as having multiple row with OK.And then multiple holes 142 regularly arrange.
Commonly used approach in the art can be used by forming the technique in multiple holes 142, be bored for example, can apply The machining of hole device or pin etc. or Laser Processing etc. and form multiple holes 142, chemical etching can also be utilized and be formed multiple Hole 142.
In addition, multiple holes 142 can have pin hole shape, pin hole shape is the curvilinear figure shape for having curvature.
Also, the hole 142 can also be identically formed in adhesive layer.
As described above, multiple holes 142 are formed at bonding sheet 140, therefore can prevent in fitting magnetic piece 120 and bonding sheet Gas can not be discharged and form bubble between bonding sheet 140 and magnetic piece 120 when 140.
That is, when carrying out in the past to magnetic piece 120 and 140 laminating technology of bonding sheet, a large amount of bubbles be present and be not discharged And the problem of remaining between magnetic piece 120 and bonding sheet 140.The quantity of such bubble is in magnetic piece 120 and bonding sheet 140 It can increase when stacking gradually.
Accordingly, the thickness deviation of wireless charging electromagnetic wave shielding sheet 100 is made increase due to bubble.
As a result, there is the reduction of the caused magnetic properties due to the bubble being captured (for example, the part of trapped bubbles Inductance reduce), and when with acceptance division 21 modularization of coil, it may appear that hydraulic performance decline.
But because multiple holes 142 are formed at bonding sheet 140, therefore can be in fitting magnetic piece 120 and bonding sheet 140 When, prevent bubble not to be discharged and remain between bonding sheet 140 and magnetic piece 120.
Accordingly, it is possible to reduce the thickness deviation of caused wireless charging electromagnetic wave shielding sheet 100 due to bubble, and then It can aid in raising productivity ratio.
In addition, by prevent may due to bubble and caused air gap (air gap) caused by effect magnetic properties reduce (for example, the inductance of the part of trapped bubbles reduces), so as to when with modular coil, can also contribute to improving the property of module Energy.
In addition, figure pass the imperial examinations at the provincial level be illustrated magnetic piece 120 for 5, bonding sheet 140 is the situation of 4, but is not limited to This, the quantity of magnetic piece 120 and bonding sheet 140 can be changed diversely.
Fig. 4 is the stereogram for the first variant embodiment for showing bonding sheet.
Reference picture 4, bonding sheet 240 is the composition for being used to be bonded at least two magnetic pieces 120 (reference picture 3), in bonding sheet 240 two sides can match somebody with somebody the adhesive layer (not shown) for being ready for use on fitting magnetic piece 120.That is, magnetic piece 120 can bond respectively The upper surface of piece 240 is bonded with bottom surface.
Adhesive layer can use usually used adhesion substance, for example, it is known that resin combination, and can use make The physical bond of magnetic piece 120 forms chemically combined material etc. with the magnetosphere of magnetic piece 120.
In addition, it could be formed with multiple holes 242 in bonding sheet 240.The multiple hole 242 be formed as having multiple row with OK.And then multiple holes 242 regularly arrange.
Commonly used approach in the art can be used by forming the technique in multiple holes 242, be bored for example, can apply The machining of hole device or pin etc. or Laser Processing etc. and form multiple holes 242, chemical etching can also be utilized and be formed multiple Hole 242.
In addition, hole 242 can have pin hole shape, pin hole can have the shape of polygon, such as with rectangular shape.
Also, the hole 242 can also be identically formed in adhesive layer.
As described above, multiple holes 242 are formed at bonding sheet 240, therefore can prevent by magnetic piece 120 and bonding sheet Bubble is not discharged and remained between bonding sheet 240 and magnetic piece 120 during 240 fitting.
Fig. 5 is the stereogram for the second variant embodiment for showing bonding sheet.
Reference picture 5, bonding sheet 340 is the composition for being used to be bonded at least two magnetic pieces 120 (reference picture 3), in bonding sheet 340 two sides can match somebody with somebody the adhesive layer (not shown) for being ready for use on fitting magnetic piece 120.That is, magnetic piece 120 can be fitted in respectively The upper surface and bottom surface of bonding sheet 340.
Adhesive layer can use usually used adhesion substance, for example, it is known that resin combination, can also use make magnetic The property physical bond of piece 120 forms chemically combined material etc. with the magnetosphere of magnetic piece 120.
And then it could be formed with multiple holes 342 in bonding sheet 340.The multiple hole 342 be formed as having multiple row with OK.And then multiple holes 342 regularly arrange.
Commonly used approach in the art can be used by forming the technique in multiple holes 342, be bored for example, can apply The machining of hole device or pin etc. or Laser Processing etc. and form multiple holes 342, chemical etching can also be utilized and be formed more Individual hole 342.
In addition, hole 342 can have shape of slit, slit can be formed along one direction.
Also, the hole 342 can also be identically formed in adhesive layer.
As described above, multiple holes 342 are formed at bonding sheet 340, therefore can prevent in fitting magnetic piece 120 and bonding sheet Bubble is not discharged and remained between bonding sheet 340 and magnetic piece 120 when 340.
Fig. 6 is the stereogram for the 3rd variant embodiment for showing bonding sheet.
Reference picture 6, bonding sheet 440 is the composition for being used to be bonded at least two magnetic pieces 120 (reference picture 3), in bonding sheet 440 two sides can match somebody with somebody the adhesive layer (not shown) for being ready for use on fitting magnetic piece 120.That is, magnetic piece 120 can be fitted in respectively The upper surface and bottom surface of bonding sheet 440.
Adhesive layer can use usually used adhesion substance, for example, it is known that resin combination, can also use make magnetic The property physical bond of piece 120 forms chemically combined material etc. with the magnetosphere of magnetic piece 120.
And then it could be formed with multiple holes 442 in bonding sheet 440.
Commonly used approach in the art can be used by forming the technique in multiple holes 442, be bored for example, can apply The machining of hole device or pin etc. or Laser Processing etc. and form multiple holes 442, chemical etching can also be utilized and be formed multiple Hole 442.
The multiple hole 442 is formed as having multiple row and row.In addition, multiple holes 442 regularly arrange.
In addition, hole 442 can have the shape of slit, the hole 442 can be by the first hole 442a for being formed along one direction And the second hole 442b formed along the direction intersected with the first hole 442a is formed.
In addition, the hole 442 can also be identically formed in adhesive layer.
As described above, multiple holes 442 are formed at bonding sheet 440, therefore can prevent in fitting magnetic piece 120 and bonding sheet When 440, bubble is not discharged and remained between bonding sheet 440 and magnetic piece 120.
In addition, in the above description to enter in case of the pin hole or slit of a kind of shape are formed in bonding sheet 440 Go explanation, but be not limited to this.
That is, described pin hole or slit can also be combined and formed with variously-shaped hole.
Embodiment of the present utility model is described in detail above, but interest field of the present utility model does not limit In this, personnel with ABC in the art, which should understand, is not departing from this practicality described in claims Various modifications and deformation can be carried out in the range of new technological thought.

Claims (17)

  1. A kind of 1. wireless charging electromagnetic wave shielding sheet, it is characterised in that including：
    Magnetic piece, for shielding from electromagnetic wave caused by wireless charging coil；And
    Bonding sheet, it is bonded with the magnetic piece,
    Also, in the bonding sheet formed with multiple holes.
  2. 2. wireless charging electromagnetic wave shielding sheet according to claim 1, it is characterised in that
    The multiple hole is formed as having multiple row and row.
  3. 3. wireless charging electromagnetic wave shielding sheet according to claim 2, it is characterised in that
    The multiple hole is regularly arranged.
  4. 4. wireless charging electromagnetic wave shielding sheet according to claim 1, it is characterised in that
    The hole has at least one of pin hole or slit shape.
  5. 5. wireless charging electromagnetic wave shielding sheet according to claim 4, it is characterised in that
    When having pin hole shape in the multiple hole, the pin hole has polygonal shape.
  6. 6. wireless charging electromagnetic wave shielding sheet according to claim 4, it is characterised in that
    When having pin hole shape in the hole, the pin hole is the curvilinear figure shape for having curvature.
  7. 7. wireless charging electromagnetic wave shielding sheet according to claim 4, it is characterised in that
    When having shape of slit in the hole, the slit is formed along one direction.
  8. 8. wireless charging electromagnetic wave shielding sheet according to claim 4, it is characterised in that
    When having shape of slit in the hole, the hole is intersected by the first hole formed along one direction and edge with first hole Direction formed the second hole form.
  9. 9. wireless charging electromagnetic wave shielding sheet according to claim 1, it is characterised in that
    The magnetic piece is made up of metal tape.
  10. 10. wireless charging electromagnetic wave shielding sheet according to claim 1, it is characterised in that
    The magnetic piece is equipped with multiple.
  11. A kind of 11. wireless charging electromagnetic wave shielding sheet, it is characterised in that including：
    Magnetic piece, it is made up of and is equipped with multiple metal tape；
    Bonding sheet, it is bonded formed with multiple holes, and with the magnetic piece,
    Also, the hole has at least one of pin hole and slit shape.
  12. 12. wireless charging electromagnetic wave shielding sheet according to claim 11, it is characterised in that
    The multiple hole is regularly arranged.
  13. 13. wireless charging electromagnetic wave shielding sheet according to claim 11, it is characterised in that
    The multiple hole is formed as having multiple row and row.
  14. 14. wireless charging electromagnetic wave shielding sheet according to claim 11, it is characterised in that
    When having pin hole shape in the hole, the pin hole has polygonal shape.
  15. 15. wireless charging electromagnetic wave shielding sheet according to claim 11, it is characterised in that
    When having pin hole shape in the hole, the pin hole is the curvilinear figure shape for having curvature.
  16. 16. wireless charging electromagnetic wave shielding sheet according to claim 11, it is characterised in that
    When having shape of slit in the hole, the slit is formed along one direction.
  17. 17. wireless charging electromagnetic wave shielding sheet according to claim 11, it is characterised in that
    When having shape of slit in the hole, the slit is handed over by the first hole formed along one direction and edge with first hole The second hole that the direction of fork is formed is formed.
CN201720838810.3U 2016-11-15 2017-07-11 Wireless charging electromagnetic wave shielding sheet Active CN207166962U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0151984 2016-11-15
KR1020160151984A KR20180054259A (en) 2016-11-15 2016-11-15 Sheet for shielding electromagneric wave for wireless charging element

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CN108076619A (en) * 2016-11-15 2018-05-25 三星电机株式会社 Wireless charging electromagnetic wave shielding sheet

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