KR20190108461A - A wireless charging receiver module and portable electronic device including the same - Google Patents

Abstract

The present invention provides a wireless power receiving module. According to an embodiment of the present invention, the wireless power receiving module comprises: an antenna for wireless power reception having a conductive member with an angular cross section formed in a loop shape; and a shielding sheet arranged in one surface of the antenna for wireless power reception to shield a magnetic field. The antenna for wireless power reception has one surface directly attached to the shielding sheet.

Description

A wireless charging receiver module and portable electronic device including the same}

The present invention relates to a wireless power receiving module and a portable electronic device including the same.

Recently, the portable terminal is equipped with a wireless charging function to easily charge the built-in battery.

The wireless charging is performed through a wireless power receiving module embedded in the portable terminal and a wireless power transmitting module for supplying power to the wireless power receiving module.

The wireless power receiving module has a wireless power receiving antenna for receiving wireless power is disposed on one surface of the shielding sheet.

On the other hand, as the portable terminal has recently become smaller and thinner, the wireless power receiver module embedded in the portable terminal also needs to be implemented in a very thin thickness.

Accordingly, the wireless power reception antenna is formed in an antenna pattern on one surface of the circuit board so that the wireless power reception module can be implemented in a thin shape.

That is, the wireless power reception antenna is formed in an antenna pattern by etching a flexible copper clad laminated film (FCCL).

However, the flexible copper foil laminated film is relatively expensive compared to other materials, thereby acting as a factor of increasing the manufacturing cost of the wireless power receiving module.

KR 10-2013-0115109 A

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object thereof is to provide a wireless power receiving module capable of implementing a thin thickness while minimizing the use of expensive FCCL and a portable electronic device including the same.

In addition, the present invention by stacking an auxiliary shielding sheet on one surface of the shielding sheet to form a horizontal plane with the antenna for wireless power reception wireless power receiving module that can satisfy the required charging efficiency while reducing the thickness of the shielding sheet and portable electronics including the same. Another purpose is to provide a device.

In order to solve the above problems, the present invention provides a wireless power reception antenna having a conductive cross section having a rectangular cross section formed in a loop shape; And a shielding sheet disposed on one surface of the wireless power receiving antenna so as to shield a magnetic field, wherein the wireless power receiving antenna provides a wireless power receiving module having one surface directly attached to the shielding sheet.

In addition, the wireless power receiving module may include a connection member connecting both ends of the wireless power receiving antenna so that power can be applied to the wireless power receiving antenna. In this case, the connection member may be a thin flexible circuit board.

In this case, the wireless power receiving module may be formed in one surface of the shielding sheet receiving grooves to be introduced inward to prevent the increase in thickness by the connection member.

In addition, the conductive member may have a width at least two times greater than the thickness so as to thin the wireless power receiving module.

The wireless power receiving module may further include an auxiliary shielding sheet stacked on one surface of the shielding sheet, and the auxiliary shielding sheet may be disposed to form the same surface as the conductive member.

In this case, the auxiliary shielding sheet may include a reverse phase pattern portion formed in reverse phase with the pattern portion of the antenna for receiving wireless power. In this case, the reversed phase pattern portion may be disposed in a space formed between the pattern portion of the antenna for receiving wireless power.

For example, the auxiliary shielding sheet may be formed through etching to form the same surface as the wireless power reception antenna by being joined with the wireless power reception antenna.

Alternatively, the auxiliary shielding sheet may be dried after the magnetic powder in the slurry state is applied to one surface of the shielding sheet and then dried to form the same surface as the antenna for receiving the wireless power.

On the other hand, the above-described wireless power receiving module may be applied to a portable electronic device such as a mobile phone.

According to the present invention, the antenna for wireless power reception is formed through the conductive member of the polygonal cross-section, while satisfying the required thin thickness, it is possible to implement a low cost product by lowering the production cost.

In addition, the present invention by stacking the auxiliary shielding sheet on one surface of the shielding sheet to form a horizontal plane with the antenna for wireless power reception can achieve the required charging efficiency while implementing a very thin thickness, for example, 0.2 mm or less. .

1 is a view showing a wireless power receiving module according to an embodiment of the present invention,
2 is an exploded view of FIG. 1,
3 is a cross-sectional view along the AA direction of FIG.
4 is a view showing a case in which an insulating layer is formed on the surface of the conductive member in FIG.
5 is a view illustrating a case in which a wireless power reception antenna is formed in a quadrangular shape in FIG.
6 is an exploded view of FIG. 5;
7 is a view showing a wireless power receiving module according to another embodiment of the present invention;
8 is an exploded view of FIG. 7;
9 is a sectional view along the BB direction of FIG.
10 is a view showing a case in which an insulating layer is formed on the surface of the conductive member in FIG.
FIG. 11 is an exemplary view illustrating various relations between widths and thicknesses of conductive members in FIG. 9, and
12 is a view showing a portable electronic device to which the wireless power receiving module is applied according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. The drawings and description are to be regarded as illustrative in nature and not restrictive. Like reference numerals designate like elements throughout the specification.

The wireless power receiving module 100, 100 ′, 200, 200 ′ according to an embodiment of the present invention includes an antenna 110 and a shielding sheet 120, 220 for receiving a wireless power as shown in FIGS. 1 to 11.

The wireless power reception antenna 110 may generate power required by the portable electronic device by receiving a wireless power signal transmitted from the wireless power transmission module. That is, the wireless power reception antenna 110 may serve as a Rx coil (secondary coil).

The wireless power receiving antenna 110 may be formed so that the conductive member A has a loop shape, and may be directly attached to one surface of the shielding sheets 120 and 220 through an adhesive layer.

In this case, the wireless power receiving antenna may be punched out by stamping so that the conductive member A has a rectangular cross section.

For example, the antenna for receiving wireless power may be a punching body punched from a plate-like sheet having a predetermined thickness.

Accordingly, the wireless power receiving module 100, 100 ', 200, 200' according to an embodiment of the present invention can reduce the production cost by implementing the wireless power receiving antenna 110 without using expensive FCCL.

In addition, the wireless power reception antenna according to the present invention is formed by a punching body punched from the plate-like sheet by winding the conductive member in one direction compared with the conventional flat coil-type wireless power reception antenna formed by winding the winding operation This eliminates the need for improved work convenience.

Here, the wireless power reception antenna may include a pattern portion 112 in which a conductive member A having a predetermined wire diameter is formed in a loop shape, and a central portion of the pattern portion 112 has a hollow area having a predetermined area. The liver 114 may be formed. In addition, the wireless power reception antenna may have a circular shape as shown in FIGS. 1 and 7, or may have a rectangular shape as shown in FIG. 5.

In addition, the antenna for receiving wireless power may include an insulating layer 116 formed to a predetermined thickness on the surface of the conductive member A as shown in FIGS. 4 and 10. Through this, even if the shielding sheets 120 and 220 or the auxiliary shielding sheets 140 and 240 to be described later are made of a material containing a metal component, the conductive member A may be connected to the shielding sheets 120 and 220 through the insulating layer 116. By being insulated, it is possible to prevent the short between the shielding sheets 120 and 220.

On the other hand, both ends of the wireless power reception antenna 110 may be electrically connected to the outside. In this case, both ends of the wireless power reception antenna 110 may be disposed so as not to overlap the pattern portion 112.

That is, any one of both ends of the antenna for receiving wireless power may be formed to be located in the empty space portion 114 side of the pattern portion 112, the other end is located on the outer edge side of the pattern portion 112. It can be formed to.

At this time, both ends of the wireless power receiving module 100, 100 ', 200, 200' according to an embodiment of the present invention may be electrically connected to the outside through a separate connection member 130. . Through this, the wireless power reception antenna 110 may receive power supplied from the outside through the connection member 130.

To this end, both ends of the wireless power reception antenna 110 may be directly connected to the connection member 130, respectively, the connection member 130 may be electrically connected to an external power supply source. In addition, the connection member 130 may be a thin plate-like member.

In detail, the connection member 130 may be a circuit board on which at least one surface a circuit pattern for electrical connection is formed, and the circuit board may be a flexible circuit board.

In addition, both ends of the wireless power reception antenna 110 may be directly connected to one surface of the flexible circuit board, and the flexible circuit board may be electrically connected to an external power supply source.

In this case, the flexible printed circuit board may have a length equal to or longer than a distance between both ends of the pattern part 112. In addition, the flexible printed circuit board may be disposed between the pattern portion 112 and the shielding sheets 120 and 220 to cross a part of the pattern portion 112.

Accordingly, both ends of the wireless power reception antenna 110 may be located at the outer side of the pattern portion 112 and the empty space portion 114 of the pattern portion 112, respectively. Through this, the conductive member A constituting the wireless power receiving antenna 110 can prevent the increase in thickness due to overlap by overlapping or not overlapping each other for the entire length, and the connection member 130 ) Can be supplied smoothly.

In addition, the flexible circuit board can have a minimum area or length for connecting both ends of the wireless power reception antenna 110 to minimize the use of the flexible circuit board to reduce the production cost.

At this time, the wireless power receiving module 100, 100 ', 200, 200' according to an embodiment of the present invention may include a receiving groove 122 for receiving the thickness of the connection member 130, the connection member 130 ) May be disposed in the receiving groove 122.

To this end, the shielding sheet (120, 220) as shown in Figures 2, 6 and 8 may be formed with a receiving groove 122 which is drawn inward from one surface facing the connection member 130. In this case, the receiving groove 122 may be formed to a depth substantially equal to the thickness of the connection member 130.

Accordingly, even when the connection member 130 is disposed between the wireless power reception antenna 110 and the shielding sheets 120 and 220, the connection member 130 may be accommodated through the receiving groove 122 in thickness. have. Through this, the wireless power receiving module 100, 100 ', 200, 200' according to an embodiment of the present invention can prevent the increase in thickness by the connection member 130 even when using the connection member 130.

That is, the wireless power receiving module 100, 100 ′, 200, 200 ′ according to an embodiment of the present invention may have a total thickness that is the sum of the thicknesses of the wireless power receiving antenna 110 and the shielding sheets 120 and 220. Accordingly, the wireless power receiving module 100, 100 ', 200, 200' according to an embodiment of the present invention and the conventional wireless power receiving module in which the wireless power receiving antenna 110 is formed in an antenna pattern on one surface of the flexible circuit board; It may have an equivalent or relatively thinner thickness.

For example, the wireless power receiving module (100, 100 ', 200, 200') may be a total thickness less than 0.3mm, but is not limited to this, it may have a variety of thickness depending on the design conditions.

The shielding sheet (120, 220) may be made of a plate-like member having a predetermined area, the wireless power receiving antenna 110 may be fixed to one surface. The shielding sheets 120 and 220 as described above may shield the magnetic field generated by the wireless power reception antenna 110 to increase the magnetic field focusing speed. Through this, the shielding sheets 120 and 220 may increase the performance of the wireless power receiving antenna 110 operating in a predetermined frequency band.

To this end, the shielding sheet (120, 220) may be made of a material having a magnetic so as to shield the magnetic field generated from the wireless power reception antenna 110.

For example, the shielding sheet 120 or 220 may be a ribbon sheet or a polymer sheet including at least one or more of a ferrite sheet, an amorphous alloy and a nano-crystalline alloy. However, the shielding sheets 120 and 220 are not limited to the above-mentioned types, and any materials having magnetic properties may be used.

Here, the ferrite sheet may be a sintered ferrite sheet, and may include one or more of Ni-Zn ferrite and Mn-Zn ferrite. In addition, the amorphous alloy or nanocrystalline alloy may include a three-element alloy or a five-element alloy, the three-element alloy may include Fe, Si and B, the five-element alloy is Fe, Si, B, Cu and Nb.

In addition, the shielding sheet 220 may be a multilayer sheet in which a plurality of sheets are stacked in multiple layers. For example, the shielding sheet 220 is a multi-layered ribbon sheet 221a including at least one or more of an amorphous alloy and a nano-crystalline alloy as shown in Figures 4 and 10 via the adhesive layer 221b It may be a multilayer sheet laminated. As a non-limiting example, the shielding sheet 220 may be a multi-layered sheet in which the ribbon sheet 221a is laminated in three to seven layers.

In addition, the shielding sheet (120, 220) may be formed into a plurality of fine pieces to suppress the generation of eddy current, the plurality of fine pieces may be provided to be insulated entirely or partially insulated between neighboring fine pieces. Each piece may be randomly made atypical.

On the other hand, the conductive member (A) may be composed of a thin plate having a width (W) having a size relatively larger than the thickness (t). That is, the conductive member A may have a width W of at least twice the size of the thickness t.

For example, the conductive member A may have a rectangular cross-sectional shape as shown in FIGS. 3, 6, and 9, and the thickness t of the conductive member A may be 0.15 mm or less.

Accordingly, the wireless power reception module 100, 100 ′, 200, 200 ′ may be implemented in a thin form since the wireless power reception antenna 110 may have a very thin thickness.

That is, in the wireless power receiving module 100, 100 ', 200, 200' according to an embodiment of the present invention, the wireless power receiving antenna 110 is a conventional wireless power receiving antenna in which an antenna pattern is formed on one surface of a flexible circuit board. It can have a very thin thickness equivalent to.

In addition, the wireless power receiving module (100, 100 ', 200, 200') according to an embodiment of the present invention is a flexible for forming an antenna pattern when compared with the prior art that the wireless power receiving antenna is formed as an antenna pattern on one surface of the flexible circuit board Since the circuit board is unnecessary, the width of the conductive member A can be increased by the thickness corresponding to the flexible circuit board.

As a result, the conductive member A may have a relatively larger cross-sectional area than a conventional antenna pattern formed on one surface of the flexible circuit board, thereby reducing the overall resistance and reducing the amount of heat generated during operation.

Through this, the wireless power receiving module (100, 100 ', 200, 200') according to an embodiment of the present invention can reduce the loss due to resistance and heat by increasing the cross-sectional area of the conductive member (A) to improve the performance as an antenna Can be improved.

Meanwhile, the wireless power receiving module 200 or 200 ′ according to an embodiment of the present invention may further include auxiliary shielding sheets 140 and 240 stacked on one surface of the shielding sheets 120 and 220 as illustrated in FIGS. 7 to 11. Can be.

The auxiliary shielding sheets 140 and 240 may be made of a magnetic material similarly to the shielding sheets 120 and 220 to compensate for the performance of the shielding sheets 120 and 220.

In this case, the auxiliary shielding sheets 140 and 240 may be disposed to form the same surface as the conductive member A.

That is, the auxiliary shielding sheets 140 and 240 are stacked on the same surface of the shielding sheets 120 and 220 together with the wireless power receiving antenna 110, and the conductive member A constituting the wireless power receiving antenna 110. And may not be overlapped with each other. In addition, the auxiliary shield sheets 140 and 240 may have a thickness substantially equal to the thickness of the conductive member A constituting the wireless power reception antenna 110.

Through this, the wireless power receiving module (200, 200 ') according to an embodiment of the present invention may be laminated on one surface of the shielding sheet (120, 220) without increasing the overall thickness.

Accordingly, the wireless power receiving module (200,200 ') according to an embodiment of the present invention is complementary to the performance of the shielding sheet (120,220) through the auxiliary shielding sheet (140,240) wireless power receiving module (100,100') of the above-described embodiment Compared with), the shielding sheets 120 and 220 may have a thinner thickness.

Through this, the wireless power receiving module 200, 200 'according to an embodiment of the present invention can further reduce the overall thickness while satisfying the required performance as compared to the wireless power receiving module 100,100' of the above-described embodiment.

In addition, when the wireless power receiving module (200,200 ') according to an embodiment of the present invention is implemented to have the same thickness as the wireless power receiving module (100,100') of the above-described embodiment, the use of the auxiliary shielding sheet (140,240) The thickness of the conductive member A constituting the wireless power receiving antenna 110 may be increased by the thickness of the shielding sheets 120 and 220 reduced through.

Through this, the wireless power receiving module (200, 200 ') according to an embodiment of the present invention can reduce the overall resistance by the conductive member (A) can have a relatively large cross-sectional area, reducing the amount of heat generated during operation You can.

Through this, the wireless power receiving module (200, 200 ') according to an embodiment of the present invention can further improve the performance as an antenna by reducing the loss due to resistance and heat generated by increasing the cross-sectional area of the conductive member (A). have.

For example, the wireless power receiving module (200, 200 ') may have a thickness of less than 0.2mm because the shielding sheet (120,220) can be implemented with a thickness of 0.1mm or less.

However, the total thickness of the wireless power receiving module (200, 200 ') is not limited to this, it will be appreciated that it can be appropriately changed according to the design conditions. That is, the wireless power receiving module (200, 200 '), as shown in Figure 11 (a) to (c) of the auxiliary shield sheet 140, 240 may have the same thickness as the shielding sheet (120, 220) or different thickness May have In addition, the conductive member A may have the same thickness as the width or may have different sizes.

As a specific example, the auxiliary shielding sheet (140, 240) may include a reverse phase pattern portion 142 formed in reverse phase with the pattern portion 112 of the antenna for receiving wireless power, the reverse phase pattern portion 142 May be disposed in a space formed on the pattern unit 112 side of the wireless power reception antenna. Here, the reversed phase pattern unit 142 may have the same thickness as the conductive member A constituting the wireless power reception antenna 110.

When the auxiliary shielding sheets 140 and 240 are disposed on one surface of the shielding sheets 120 and 220 such that the reversed phase pattern unit 142 is disposed in a space formed on the side of the pattern unit of the wireless power reception antenna 110. The auxiliary shield sheets 140 and 240 may form the same surface as the conductive member A.

In addition, the auxiliary shield sheets 140 and 240 may be disposed to completely surround the wireless power reception antenna 110. That is, the auxiliary shield sheets 140 and 240 may be disposed to surround both sides of the conductive member A constituting the antenna for receiving wireless power. Accordingly, the wireless power receiving antenna 110 may have the shielding sheets 120 and 220 and the auxiliary shielding sheets 140 and 240 respectively disposed on both side surfaces and the bottom surface of the wireless power receiving antenna 110 except for the exposed surface.

In this case, the reverse pattern pattern 142 formed on the auxiliary shielding sheets 140 and 240 may be formed in various ways.

In one example, the reversed phase pattern portion 142 may be formed through etching. That is, when the auxiliary shielding sheets 140 and 240 are made of a material including a metal component, the reverse phase pattern part 142 may be formed by etching.

When the auxiliary shielding sheets 140 and 240 are attached to one surface of the shielding sheets 120 and 220, the reversed phase pattern part 142 is inserted into a space formed on the pattern part 112 side of the wireless power reception antenna. Can be. In this case, the auxiliary shielding sheets 140 and 240 may be ribbon sheets including at least one or more of an amorphous alloy and a nano grain alloy.

Alternatively, the auxiliary shielding sheets 140 and 240 may be made of magnetic powder in a slurry state. That is, the magnetic powder in the slurry state may be applied to one surface of the shielding sheets 120 and 220 while the wireless power receiving antenna 110 is attached to one surface of the shielding sheets 120 and 220.

Through this, the magnetic powder in the slurry state may be filled in the space formed on the pattern portion 112 side of the wireless power reception antenna and the empty space 114 of the wireless power reception antenna. Thereafter, the auxiliary shield sheets 140 and 240 may be configured to form the same surface as the conductive member A by drying the magnetic powder in the slurry state. In this case, the magnetic powder may be a ferrite powder.

As another alternative, the reverse pattern portion 142 may be formed through a punch. In this case, the auxiliary shielding seats 140 and 240 may be punched out with an area corresponding to the pattern portion 112 of the antenna 110 for receiving wireless power. When the auxiliary shielding sheets 140 and 240 are attached to one surface of the shielding sheets 120 and 220, the reversed phase pattern part 142 is inserted into a space formed on the pattern part 112 side of the wireless power reception antenna. Can be. In such a case, the auxiliary shielding sheets 140 and 240 may be used without limitation as long as the material can be punched out by a mold.

Meanwhile, the auxiliary shield sheets 140 and 240 may be used without limitation as long as the materials have magnetic properties to complement the performance of the shield sheets 120 and 220 as described above. In addition, the auxiliary shielding sheets 140 and 240 may be made of the same material as or different from that of the shielding sheets 120 and 220.

As a non-limiting example, the auxiliary shielding sheet (140,240) may be used, such as a ribbon sheet or a polymer sheet containing at least one or more of a ferrite sheet, amorphous alloy and nano-crystalline alloy.

In addition, the auxiliary shielding sheet 240 may be a multi-layered sheet in which a plurality of sheets are stacked like the shielding sheet 220. For example, as shown in FIG. 10, the auxiliary shield sheet 240 includes a plurality of ribbon sheets 241a including at least one of an amorphous alloy and a nano-crystalline alloy, stacked in a multi-layer via an adhesive layer 241b. The auxiliary shield sheet 240 may be a multilayer sheet in which the ribbon sheet 241a is laminated in three to seven layers.

In addition, the auxiliary shielding sheets 140 and 240 may be separately formed into a plurality of fine pieces so as to suppress the generation of eddy currents, and the plurality of fine pieces may be provided to be entirely insulated or partially insulated from neighboring fine pieces. Each piece may be randomly made atypical.

Meanwhile, when the auxiliary shielding sheets 140 and 240 include a metal component, at least one of the auxiliary shielding sheets 140 and 240 and the wireless power receiving antenna 110 has an insulating layer 116 having a predetermined thickness on a surface thereof. It may include.

For example, as shown in FIG. 10, the wireless power reception antenna 110 may have an insulating layer 116 formed on a surface of the conductive member A with a predetermined thickness. Through this, even if the auxiliary shield sheets 140 and 240 are made of a material containing a metal component, the wireless power reception antenna 110 may be insulated from the auxiliary shield sheets 140 and 240 through the insulating layer 116. As a result, it is possible to prevent the auxiliary shielding sheets 140 and 240 and the short from occurring.

However, the formation position of the insulating layer 116 is not limited thereto, and the insulating layer 116 may be formed to surround the surface of the reverse phase pattern portion 142 of the auxiliary shielding sheets 140 and 240. In addition, the insulating layer 116 may be formed on both the reverse phase pattern portion 142 and the conductive member A of the auxiliary shielding sheets 140 and 240.

The wireless power receiving module 100, 100 ', 200, 200' according to the embodiment of the present invention described above is provided on the inner side of the rear case or the back cover 30 of the terminal body 10 in the portable terminal as shown in FIG. Can be installed.

For example, the wireless power receiving module 100, 100 ′, 200, 200 ′ may be attached to one surface of the rear case or the back cover 30 of the terminal body 10 via the adhesive member 40.

Here, the adhesive member 40 may be a substrate type coated with an adhesive on both sides of the substrate or may be an inorganic material type.

In addition, the portable terminal includes a terminal body 10 that performs a function of the portable terminal; And a rear case or back cover 30 provided at a rear surface of the terminal body, and the rear case or back cover 30 may be detachably coupled to the terminal body 10 or the terminal body 10. It may be formed integrally with).

In addition, the rear surface of the terminal body 10 may include areas in which a battery 20, a memory chip, etc. may be mounted, and may be easily replaced and the rear case or the back cover for aesthetics of the portable terminal. 30 may be detachably coupled to the terminal body 10. In this case, the rear case or the back cover 30 may be referred to as a battery cover.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art who understand the spirit of the present invention, within the scope of the same idea, the addition of components Other embodiments may be easily proposed by changing, deleting, adding, and the like, but this will also fall within the spirit of the present invention.

100,100 ', 200,200': Wireless power receiving module
110: antenna for receiving wireless power 112: pattern portion
114: empty space portion 116: insulating layer
120,220: Shield sheet 122: receiving groove
130: connecting member 140, 240: auxiliary shield sheet
142: reverse pattern

Claims (20)

An antenna for wireless power reception in which a conductive member having a square cross section is formed in a loop shape; And
And a shielding sheet disposed on one surface of the antenna for receiving wireless power so as to shield a magnetic field.
The wireless power receiving antenna is a wireless power receiving module that one side is directly attached to the shield sheet. The method of claim 1,
The wireless power receiving antenna is a wireless power receiving module is punched through the stamping so that the conductive member has a rectangular cross-section. The method of claim 1,
The conductive member is a wireless power receiving module including an insulating layer formed on the surface to a predetermined thickness. The method of claim 1,
The wireless power receiving module includes a connecting member electrically connected to both ends of the wireless power receiving antenna,
The connection member is a wireless power receiving module disposed between the wireless power receiving antenna and the shield sheet. The method of claim 4, wherein
The connecting member is a wireless power receiving module which is a circuit board of a thin plate. The method of claim 4, wherein
The shielding sheet has a receiving groove which is introduced into the inner surface on one surface, the connection member is a wireless power receiving module seated in the receiving groove. The method of claim 4, wherein
The wireless power receiving antenna is any one of the both ends of the wireless power receiving module is disposed on the side of the empty space formed in the center portion of the pattern portion and the other is arranged on the outer edge side of the pattern portion. The method of claim 1,
The conductive member is a wireless power receiving module having a width at least twice the size of the thickness. The method of claim 1,
The shielding sheet is any one of a ribbon sheet, a ferrite sheet and a polymer sheet including at least one or more of an amorphous alloy and a nano-crystalline alloy. The method of claim 1,
The shielding sheet is a wireless power receiving module which is a multilayer sheet in which a plurality of ribbon sheets including at least one or more of an amorphous alloy and a nano-crystalline alloy are laminated in multiple layers. The method of claim 1,
The wireless power receiving module,
Further comprising a secondary shielding sheet laminated on one surface of the shielding sheet,
The auxiliary shielding sheet is a wireless power receiving module disposed to form the same surface as the conductive member. The method of claim 11,
The auxiliary shielding sheet includes a reverse phase pattern portion formed in a reverse phase with the pattern portion of the wireless power reception antenna, wherein the reverse phase pattern portion is disposed in a space formed between the pattern portions of the wireless power reception antenna. The method of claim 12,
The reverse power pattern module is formed by etching the wireless power receiving module. The method of claim 13,
At least one of the auxiliary shielding sheet and the wireless power receiving antenna includes a wireless power receiving module including an insulating layer formed on a surface to a predetermined thickness. The method of claim 12,
The auxiliary shielding sheet is a wireless power receiving module which is a ribbon sheet containing at least one or more of an amorphous alloy and a nano-crystalline alloy. The method of claim 12,
The auxiliary shielding sheet is a wireless power receiving module which is a multi-layered sheet in which a plurality of ribbon sheets including at least one or more of an amorphous alloy and a nano-crystalline alloy laminated in a multi-layer. The method of claim 11,
The auxiliary shielding sheet is a wireless power receiving module is formed by applying a magnetic powder in the slurry state on one surface of the shielding sheet and dried. The method of claim 17,
The magnetic powder is a ferrite powder wireless power receiving module. The method of claim 11,
The auxiliary shielding sheet is a wireless power receiving module having the same thickness as the shielding sheet. A portable electronic device comprising the wireless power receiving module according to any one of claims 1 to 19.

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