KR101646169B1 - Magnetic plate and magnetic shielding sheet having the same - Google Patents

Magnetic plate and magnetic shielding sheet having the same Download PDF

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Publication number
KR101646169B1
KR101646169B1 KR1020150137760A KR20150137760A KR101646169B1 KR 101646169 B1 KR101646169 B1 KR 101646169B1 KR 1020150137760 A KR1020150137760 A KR 1020150137760A KR 20150137760 A KR20150137760 A KR 20150137760A KR 101646169 B1 KR101646169 B1 KR 101646169B1
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South Korea
Prior art keywords
magnetic plate
magnetic
plate
plate body
slit portion
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KR1020150137760A
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Korean (ko)
Inventor
박홍진
김종환
윤승재
김재현
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주식회사 비에스피
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Publication of KR101646169B1 publication Critical patent/KR101646169B1/en

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    • 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
    • H01F10/06—Thin magnetic films, e.g. of one-domain structure characterised by the coupling or physical contact with connecting or interacting conductors
    • 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
    • H05K9/0075—Magnetic shielding materials

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The present invention can divide one magnetic plate body into a plurality of magnetic body parts without separately performing additional processes by forming a plurality of through slits so as to be spaced apart from each other in the magnetic plate body so that one magnetic plate body is not separated from the magnetic plate A magnetic plate capable of precisely controlling the position and shape of each magnetic body part and preventing loss of magnetic permeability and shielding performance while preventing loss due to eddy current in the magnetic plate body, And more particularly to a magnetic field shielding sheet.
The magnetic plate is a magnetic plate for shielding a magnetic field in a magnetic shield sheet. The magnetic plate includes a plate-shaped magnetic plate body formed to surround a magnetic field region, and a plurality of through-slits penetratingly formed in the magnetic plate body. Wherein the magnetic plate body is partitioned into a plurality of magnetic body portions by a plurality of through slits, wherein the plurality of magnetic body portions are connected together so that the magnetic plate bodies are not separated into two or more.

Description

MAGNETIC PLATE AND MAGNETIC SHIELDING SHEET HAVING THE SAME [0002]

The present invention relates to a magnetic plate and a magnetic shield sheet provided with the magnetic plate. More specifically, the magnetic plate body is formed with a plurality of through-slits spaced from each other so as not to separate one magnetic plate body from the magnetic plate, It is possible to divide one magnetic plate body into a plurality of magnetic body portions without further processing, precisely control the position and shape of each magnetic body portion, and prevent loss due to eddy current in the magnetic plate body And a magnetic plate capable of preventing the permeability and the shielding performance from being deteriorated, and a magnetic shield sheet provided with the magnetic plate.

In general, various functions such as RFID, NFC, wireless charger, and pentell are added to mobile terminals such as mobile phones, tablet PCs and notebooks. Most of the additional functions of the portable terminal use a magnetic field ranging from several tens of kHz to several tens MHz. When exposed to a magnetic field of such frequency, various components built in a portable terminal such as a battery are affected.

Therefore, a magnetic shielding sheet is essentially used to prevent the portable terminal from affecting portable terminal components such as a battery due to the magnetic field used, and to improve the function of using the magnetic field by focusing the magnetic field.

However, since the magnetic plate that performs the shielding function in the conventional magnetic shield sheet is separated into fine pieces by a physical pressing force, it is disorderly arranged, and it is difficult to precisely control the position and shape of the gap.

In addition, since the magnetic plate that performs the shielding function in the conventional magnetic shield sheet is separated into fine pieces by the physical pressing force, the magnetic plates are separated from each other by the adhesive force between the fine pieces .

In addition, since a magnetic plate which performs a shielding function in a conventional magnetic shield sheet is separated into fine pieces by a physical pressing force, loss due to eddy current in the magnetic plate can be prevented, but due to a high clearance density But rather has a drawback that the permeability is reduced and consequently the shielding performance is lowered.

Korean Patent Laid-Open Publication No. 2005-0037015 (entitled "Metal and Polymer Complex Having Low Frequency Magnetic Field Shielding Function," published on Apr. 21, 2005)

It is an object of the present invention to solve the conventional problems by providing a magnetic plate body in which a plurality of through slits are formed so as to be spaced apart from each other so that one magnetic plate body is not separated from the magnetic plate, The plate body can be divided into a plurality of magnetic body portions and the position and shape of each magnetic body portion can be precisely controlled and permeability and shielding performance can be prevented while preventing loss due to eddy current in the magnetic plate body And a magnetic field shielding sheet provided with the magnetic plate.

According to a preferred embodiment of the present invention, a magnetic plate according to the present invention is a magnetic plate for shielding a magnetic field in a magnetic shield sheet. The magnetic plate includes a plate-shaped magnetic plate body ; And a plurality of through slits penetratingly formed in the magnetic plate body so as to be spaced apart from each other, wherein the magnetic plate body is partitioned into a plurality of magnetic body portions by a plurality of the through slits, wherein the plurality of magnetic body portions The magnetic plate bodies are connected together so that they are not separated into two or more.

Here, the through slit includes at least one of a linear slit portion formed linearly and a cross slit portion formed so as to extend through a plurality of linear portions at an arbitrary point.

A linear slit opening is formed at an edge of the magnetic plate body so that one end of at least one of the plurality of linear slits is connected to open one end in the longitudinal direction of the linear slit.

At least one of the plurality of intersecting slits is connected to an edge of the magnetic plate body so that a crossing slit opening is opened so that a part of the intersecting slit is opened.

The magnetic shield sheet according to the present invention comprises the above-mentioned magnetic plate; And an adhesive sheet laminated and bonded to the magnetic plate, wherein the adhesive sheet comprises: a finishing sheet layer laminated on the first magnetic plate; And a fixing adhesive layer provided between the first magnetic plate and the finishing sheet layer for mutual adhesion.

The magnetic shield sheet according to the present invention comprises the above-mentioned magnetic plate; And an adhesive sheet laminated and bonded to the magnetic plate, wherein the adhesive sheet comprises a thermosetting polymer layer adhered and fixed to the magnetic plate by thermal deformation.

The magnetic shield sheet according to the present invention comprises the above-mentioned magnetic plate; And an adhesive sheet laminated and bonded to the magnetic plate, wherein the adhesive sheet is fixed to the magnetic plate by a coating method or a spraying method.

A magnetic shield sheet according to the present invention includes: a first magnetic plate surrounding a magnetic field region; And at least one second magnetic plate laminated and supported on the first magnetic plate so as to surround the magnetic field region, wherein at least one of the first magnetic plate and the second magnetic plate is composed of the magnetic plate .

And a fixed adhesive layer provided between the first magnetic plate and the second magnetic plate or between the first magnetic plate and the second magnetic plate for mutual adhesion.

According to the magnetic plate and the magnetic shield sheet provided with the magnetic plate according to the present invention, a plurality of through slits are formed to be spaced apart from each other on the magnetic plate body so that one magnetic plate body is not separated from the magnetic plate, The magnetic plate body of the magnetic plate body can be divided into a plurality of magnetic body parts and the position and shape of each magnetic body part can be accurately controlled and the magnetic plate body can prevent loss due to eddy current, It is possible to prevent degradation of performance.

In addition, since the magnetic plate body is not separated, the magnetic plate can be easily transported in a subsequent process, and the plurality of through-slits need not be filled with a separate insulating material, so that the process can be simplified, Can be saved.

Further, the present invention can restrict the arrangement order of the plurality of magnetic body parts, and can precisely control the positions of the plurality of magnetic body parts and the positions of the plurality of magnetic body parts.

In addition, the present invention stably divides a magnetic body portion formed along the edge of one magnetic plate body and separates the generation area of the eddy current in the magnetic plate body to a small size, thereby increasing the effect of preventing loss due to eddy current .

In addition, the present invention can prevent loss due to eddy current in the magnetic shield sheet, and prevent deterioration of magnetic permeability and shielding performance.

1 is a plan view showing a magnetic plate according to the prior art.
2 is a plan view showing a magnetic plate according to a first embodiment of the present invention.
3 is a plan view showing a modification of the magnetic plate according to the first embodiment of the present invention.
4 is a plan view showing a magnetic plate according to a second embodiment of the present invention.
5 is a plan view showing a modification of the magnetic plate according to the second embodiment of the present invention.
6 is a cross-sectional view illustrating a magnetic shield sheet according to an embodiment of the present invention.
7 is a cross-sectional view illustrating a magnetic shield sheet according to another embodiment of the present invention.

Hereinafter, one embodiment of a magnetic plate and a magnetic shielding sheet having the same according to the present invention will be described with reference to the accompanying drawings. Here, the present invention is not limited or limited by the examples. Further, in describing the present invention, a detailed description of well-known functions or constructions may be omitted for clarity of the present invention.

Hereinafter, the magnetic plate according to the first embodiment of the present invention will be described. FIG. 2 is a plan view showing a magnetic plate according to a first embodiment of the present invention, and FIG. 3 is a plan view showing a modification of the magnetic plate according to the first embodiment of the present invention.

Referring to FIGS. 2 and 3, a magnetic plate according to a first embodiment of the present invention includes a magnetic plate body 10 and a through-hole slit 20. The magnetic plate according to the first embodiment of the present invention may use a magnetic material such as an Fe-based, Co-based or Ni-based amorphous alloy ribbon, a nanocrystalline alloy ribbon, a ferrite sheet, or a polymer sheet containing magnetic powder. Here, Fe-based, Co-based, or Ni-based amorphous ribbon alloys and nanocrystalline alloys may be heat treated or non-heat treated.

The magnetic plate body 10 is formed in a plate shape so as to surround a magnetic field area. The magnetic plate body 10 has a predetermined size corresponding to a magnetic field area. The magnetic plate body 10 has a substantially rectangular shape and includes a first side 11 and a second side 12 to which the first side 11 is connected, A third side 13 connected to the second side 12 while facing the second side 12 and a third side 13 connecting the first side 11 and the third side 13, Four sides 14 are formed. In addition, a vertex 15 is formed at the edge of the magnetic plate body 10 at a portion where the sides meet.

A plurality of the through-slits 20 are formed to be spaced apart from each other in the magnetic plate body 10. The through slit 20 may have a shape of a long hole formed in the longitudinal direction or a point shape. Accordingly, the magnetic plate body 10 is divided into the plurality of magnetic body parts 16 by the plurality of through-slits 20. [ At this time, the plurality of magnetic body parts 16 are integrally connected to each other so that the magnetic plate body 10 is not separated into two or more parts.

The penetrating slit 20 may be composed of a linear slit portion 21 formed linearly. The linear slit portion 21 may be linearly formed in various shapes such as a point shape, a line segment shape, and a curved shape in the magnetic plate body 10 in a planar state.

Here, the magnetic plate body 10 may be provided with a linear slit opening 22 at an edge thereof. One end of at least one of the plurality of linear slit portions 21 is connected to an edge of the magnetic plate body 10 so that one longitudinal end portion of the linear slit portion 21 is opened .

Some or all of the plurality of linear slit portions 21 may be disposed parallel to the magnetic plate body 10 as shown in FIG. The linear slit opening 22 may be alternately formed on the first side 11 and the third side 13 along the direction in which the linear slit portion 21 is arranged.

A part or all of the plurality of linear slit portions 21 are spaced apart from each other by imaginary lines intersecting in the magnetic plate body 10 as shown in Figs. 3 (a) and 3 (b) Or may be arranged radially spaced from one another with respect to any one point. Here, the linear slit opening 22 may be formed at the edge of the magnetic plate body 10.

For example, some or all of a plurality of the linear slit portions 21 may be arranged so as to be spaced apart from each other on imaginary lines intersecting with each other as shown in Fig. 3 (a). The linear slit opening 22 may be formed at the first side 11, the second side 12, the third side 13, and the fourth side 14, respectively .

As another example, some or all of a plurality of the linear slit portions 21 may be radially arranged in a state where they are mutually spaced apart from each other as shown in Fig. 3 (b). At this time, the linear slit opening 22 may be formed at each vertex 15 of the magnetic plate body 10. The linear slit opening 22 may also be formed in the first side 11, the second side 12, the third side 13, and the fourth side 14, respectively .

Some or all of the plurality of linear slit portions 21 may be spaced apart from one another along imaginary lines in the magnetic plate body 10 as shown in Figures 3 (c) and 3 (d) have. Here, the linear slit opening 22 may not be formed in the magnetic plate body 10 as shown in FIG. 3 (c). In addition, the linear slit opening 22 may be formed at the edge of the magnetic plate body 10 as shown in FIG. 3 (d).

Hereinafter, a magnetic plate according to a second embodiment of the present invention will be described. FIG. 4 is a plan view showing a magnetic plate according to a second embodiment of the present invention, and FIG. 5 is a plan view showing a modification of the magnetic plate according to the second embodiment of the present invention.

Referring to FIGS. 4 and 5, the magnetic plate according to the second embodiment of the present invention includes the magnetic plate body 10 and the through-hole slit 20. The magnetic plate body 10 according to the second embodiment of the present invention and the magnetic plate body 10 according to the first embodiment of the present invention in the through slit 20 and the through slit 20 The same reference numerals are given and the description thereof will be omitted.

However, the through slit 20 may be composed of an intersecting slit portion 23 formed so as to extend through a plurality of linear portions at an arbitrary point. Here, an arbitrary point is formed as an intersection of the intersecting slit portions 23. The intersecting slit portion 23 may be formed by extending a plurality of linear shapes such as a line shape, a curved shape, and the like at an arbitrary point in the magnetic plate body 10 in a planar state.

Here, crossed slit openings 24 may be formed at the edges of the magnetic plate body 10. The intersecting slit opening 24 is formed such that at least one of the plurality of intersecting slit portions 23 is connected and a part of the intersecting slit portion 23 is connected to the edge of the magnetic plate body 10 to be opened .

4 and 5, the intersections of the intersecting slit portions 23 may be connected to the intersecting slit openings 24. As shown in FIG. Although not shown, any one of the free ends of the intersecting slit portion 23 may be connected to the intersecting slit opening portion 24.

Accordingly, the penetrating slit 20 can include at least one of the linear slit portion 21 and the intersecting slit portion 23. [

Hereinafter, a magnetic shield sheet according to an embodiment of the present invention will be described. 6 is a cross-sectional view illustrating a magnetic shield sheet according to an embodiment of the present invention.

2 to 6, a magnetic shielding sheet according to an embodiment of the present invention includes a magnetic plate 1 and an adhesive sheet 2. As shown in Fig.

The magnetic plate 1 is formed so as to surround the magnetic field area to shield the magnetic field. The magnetic plate 1 is a magnetic plate according to the first or second embodiment of the present invention, and a description thereof will be omitted.

The adhesive sheet (2) is laminated and bonded to the magnetic plate (1). The adhesive sheet (2) may be laminated and bonded to at least one of both surfaces of the magnetic plate (1). The adhesive sheet (2) can be classified into the following three types.

For example, the adhesive sheet 2 may include a finishing sheet layer 2b and a fixing adhesive layer 2a as shown in Fig. 6 (a). Further, the adhesive sheet 2 may further include a desorption bonding layer 2c, and may further include a release layer 2d.

The finishing sheet layer 2b is laminated on the magnetic plate 1.

The fixed adhesive layer 2a is provided between the magnetic plate 1 and the finishing sheet layer 2b. The fixed adhesive layer 2a bonds the magnetic plate 1 to the finish sheet layer 2b.

The desiccant adhesive layer 2c is provided on the finished sheet layer 2b. The desorption bonding layer 2c allows the magnetic plate 1 to stably adhere to a magnetic field region.

The release layer 2d is detachably adhered to the desorption bonding layer 2c. The release layer 2d protects the desorption bonding layer 2c and can maintain the adhesive strength of the desorption bonding layer 2c.

As the adhesive sheet 2 is provided, the magnetic plate 1 can be easily transported and the magnetic plate 1 can be prevented from being damaged during transportation and installation.

As another example, the adhesive sheet 2 may comprise a thermosetting polymer layer 4, as shown in Figure 6 (b).

The thermosetting polymer layer 4 is adhered and fixed to the magnetic plate 1 by thermal deformation. The thermosetting polymer layer 4 is formed in the form of a plate at room temperature, softened when heat is applied thereto, and is changed into a semi-molten state or a molten state, and self-tackiness is imparted. The thermosetting polymer layer 4 is cured as it is cooled and is fixed to the magnetic plate layer 1 while maintaining its shape before cooling. When the thermosetting polymer layer 4 is cooled and then reheated, the thermosetting polymer layer 4 is not softened again. If the temperature is above a predetermined temperature, the thermosetting polymer layer 4 is plastically deformed and may be changed or burned differently from properties before reheating.

The thermosetting polymer layer 4 may be made of a material such as ethylene vinyl acetate (EVA), ethylene vinyl resin (EVB), polyvinyl butyral (PVB), ionomer, POE (poly olefin)

At this time, the thermosetting polymer layer 4 further includes the finishing sheet layer 2b and the fixing adhesive layer 2a, and may further include the desorption bonding layer 2c, and the release layer 2d may further include .

As another example, the adhesive sheet 2 may include a fixing layer 6 as shown in Fig. 6 (c). The fixed layer 6 is adhered and fixed to the magnetic plate 1 by a coating method or a spraying method. The fixed layer 6 is formed in a liquid state at room temperature, and can be solidified by heat treatment (heating or cooling) and adhered and fixed to the magnetic plate 1. Here, the material of the fixed layer 6 is not limited, but it is formed in a liquid state at room temperature through various known forms, solidified as a result of heat treatment (heating or cooling), and adhered to the magnetic plate 1 Can be fixed.

The fixing layer 4 further includes the finishing sheet layer 2b and the fixing adhesive layer 2a and may further include the desorption bonding layer 2c and may further include the release layer 2d, have.

Hereinafter, a magnetic shield sheet according to another embodiment of the present invention will be described. 7 is a cross-sectional view illustrating a magnetic shield sheet according to another embodiment of the present invention. 2 to 5 and 7, the magnetic shield sheet according to another embodiment of the present invention may include a first magnetic plate 3a and a second magnetic plate 3b. As a plurality of magnetic plates are provided as in the other embodiments of the present invention, the shielding performance of the magnetic field can be improved.

The first magnetic plate 3a and the second magnetic plate 3b are made of a magnetic material such as an Fe-based, Co-based or Ni-based amorphous alloy ribbon, a nanocrystalline alloy ribbon, a ferrite sheet, Can be used. Here, Fe-based, Co-based, or Ni-based amorphous ribbon alloys and nanocrystalline alloys may be heat treated or non-heat treated.

Both the first magnetic plate 3a and the second magnetic plate 3b are formed so as to surround the magnetic field region. In particular, at least one of the first magnetic plate 3a and the second magnetic plate 3b may be formed of a magnetic material such as a magnetic material, Plate. At this time, one or more of the second magnetic plates 3b may be stacked on the first magnetic plate 3a.

The magnetic shield sheet according to another embodiment of the present invention may further include the fixed adhesive layer 2a. The fixed adhesive layer 2a may be provided between the first magnetic plate 3a and the second magnetic plate 3b for mutual adhesion as shown in FIG. 7 (b) 3b. At least one of the second magnetic plates 3b may be adhered and fixed to the first magnetic plate 3a.

Although not shown, the adhesive sheet 2 is adhered and fixed to at least one of the first magnetic plate 3a and the second magnetic plate 3b provided at the outermost side, as in the embodiment of the present invention .

According to the magnetic plate and the magnetic shield sheet provided with the magnetic plate, the plurality of through slits 20 are formed in the magnetic plate body 10 so that one magnetic plate body 10 is not separated from the magnetic plate 1, So that one magnetic plate body 10 can be divided into a plurality of magnetic body portions 16 without any additional process, and the position of each magnetic body portion 16 with respect to each magnetic body portion 16 It is possible to precisely control the shape of the magnetic plate body 10 and to prevent loss due to eddy currents in the magnetic plate body 10 and deterioration of the magnetic permeability and shielding performance. In addition, since the magnetic plate body 10 is not separated, it is not necessary to fill the plurality of through slits 20 with a separate insulating material, thereby facilitating transportation of the magnetic plate 1 in a subsequent process. And the manufacturing cost of the magnetic plate 1 can be reduced.

In addition, the arrangement order of the plurality of magnetic body portions 16 can be limited, and the shape of the plurality of magnetic body portions 16 and the positions of the plurality of magnetic body portions 16 can be accurately controlled. In addition, the magnetic plate body 10 formed with the magnetic plate body 10 stably divides the magnetic body part 16 formed along the edge thereof, and has an effect of separating the generation area of the eddy current in the magnetic plate body 10 small Accordingly, it is possible to increase the effect of preventing the loss due to eddy currents. In addition, it is possible to prevent the magnetic permeability and the shielding performance from being deteriorated while preventing the loss due to the eddy current in the magnetic shield sheet.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Modify or modify the Software.

10: magnetic plate body 11: first side 12: second side
13: third side 14: fourth side 15: vertex
16: magnetic body part 20: penetrating slit 21: linear slit part
22: linear slit opening 23: intersecting slit portion 24: intersecting slit opening
1: magnetic plate 3a: first magnetic plate 3b: second magnetic plate
2: Adhesive sheet 2a: Fixed adhesive layer 2b: Finish sheet layer
2c: desorption adhesive layer 2d: release layer 4: thermosetting polymer layer
5: Fixed layer

Claims (9)

A magnetic plate for shielding a magnetic field in a magnetic shield sheet,
A plate-shaped magnetic plate body formed to surround a magnetic field region; And
And a plurality of through-slits penetratingly formed in the magnetic plate body so as to be spaced apart from each other,
Wherein the magnetic plate body is partitioned into a plurality of magnetic body portions by a plurality of the through slits, wherein the plurality of magnetic body portions are connected together so that the magnetic plate bodies are not separated into two or more,
The through-
A linear slit portion formed linearly through the linear slit portion and a cross slit portion formed so as to extend through a plurality of linear portions at an arbitrary point or including only intersecting slit portions formed so as to extend through a plurality of linear portions at an arbitrary point,
At the edge of the magnetic plate body,
And a cross slit opening to which the cross slit portion is connected such that a portion of the cross slit portion is opened. The method according to claim 1,
At the edge of the magnetic plate body,
And a linear slit opening to which the linear slit portion is connected so that one longitudinal end of the linear slit portion is opened. A magnetic plate surrounding a magnetic field region; And
And an adhesive sheet laminated and bonded to the magnetic plate,
The above-
A finishing sheet layer laminated on the magnetic plate; And
And a fixing adhesive layer provided between the magnetic plate and the finishing sheet layer for mutual adhesion,
The magnetic plate may include:
A plate-shaped magnetic plate body formed to surround a magnetic field region; And
And a plurality of through-slits penetratingly formed in the magnetic plate body so as to be spaced apart from each other,
Wherein the magnetic plate body is partitioned into a plurality of magnetic body portions by a plurality of the through slits, wherein the plurality of magnetic body portions are connected together so that the magnetic plate bodies are not separated into two or more,
The through-
Wherein the magnetic shielding sheet comprises at least one of a linear slit portion linearly penetrated and an intersecting slit portion formed so as to extend through a plurality of linear portions at an arbitrary point. A first magnetic plate surrounding the magnetic field region; And
And at least one second magnetic plate laminated and supported on the first magnetic plate to surround the magnetic field region,
Wherein at least one of the first magnetic plate and the second magnetic plate
A plate-shaped magnetic plate body formed to surround a magnetic field region; And
And a plurality of through-slits penetratingly formed in the magnetic plate body so as to be spaced apart from each other,
Wherein the magnetic plate body is partitioned into a plurality of magnetic body portions by a plurality of the through slits, wherein the plurality of magnetic body portions are connected together so that the magnetic plate bodies are not separated into two or more,
The through-
Wherein the magnetic shielding sheet comprises at least one of a linear slit portion linearly penetrated and an intersecting slit portion formed so as to extend through a plurality of linear portions at an arbitrary point. A magnetic plate according to claim 1 or 2; And
And an adhesive sheet laminated and bonded to the magnetic plate,
The above-
A finishing sheet layer laminated on the magnetic plate; And
And a fixed adhesive layer provided between the magnetic plate and the finishing sheet layer for mutual adhesion. A magnetic plate according to claim 1 or 2; And
And an adhesive sheet laminated and bonded to the magnetic plate,
Wherein the adhesive sheet comprises a thermosetting polymer layer adhered and fixed to the magnetic plate by thermal deformation. A magnetic plate according to claim 1 or 2; And
And an adhesive sheet laminated and bonded to the magnetic plate,
Wherein the adhesive sheet comprises a fixing layer adhered and fixed to the magnetic plate by a coating method or a spraying method. A first magnetic plate surrounding the magnetic field region; And
And at least one second magnetic plate laminated and supported on the first magnetic plate to surround the magnetic field region,
Wherein at least one of the first magnetic plate and the second magnetic plate comprises the magnetic plate according to claim 1. The method according to claim 4 or 8,
And a fixed adhesive layer provided between the first magnetic plate and the second magnetic plate or between the first magnetic plate and the second magnetic plate for mutual adhesion.
KR1020150137760A 2015-09-30 2015-09-30 Magnetic plate and magnetic shielding sheet having the same KR101646169B1 (en)

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KR20200032620A (en) * 2018-09-18 2020-03-26 주식회사 아모센스 The method of manufacturing shilding sheet and shilding sheet
CN112103641A (en) * 2019-06-18 2020-12-18 阿莫先恩电子电器有限公司 Magnetic field shielding sheet, method for manufacturing the same, wireless power receiving module, and portable terminal device using the same
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KR20200032620A (en) * 2018-09-18 2020-03-26 주식회사 아모센스 The method of manufacturing shilding sheet and shilding sheet
KR102525698B1 (en) * 2018-09-18 2023-04-25 주식회사 아모센스 The method of manufacturing shilding sheet and shilding sheet
CN112103641A (en) * 2019-06-18 2020-12-18 阿莫先恩电子电器有限公司 Magnetic field shielding sheet, method for manufacturing the same, wireless power receiving module, and portable terminal device using the same
CN112103641B (en) * 2019-06-18 2021-11-23 阿莫先恩电子电器有限公司 Magnetic field shielding sheet, method for manufacturing same, wireless power receiving module, and terminal device
WO2021015550A1 (en) * 2019-07-22 2021-01-28 주식회사 아모센스 Magnetic field shielding sheet
US11968816B2 (en) 2019-07-22 2024-04-23 Amosense Co., Ltd. Magnetic field shielding sheet

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