Electronic device

• US 9,966,185 B2
• Filed: 09/21/2016
• Issued: 05/08/2018
• Est. Priority Date: 03/26/2014
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Nakao, Masaki
• Primary Examiner(s): Thompson, Timothy
• Assistant Examiner(s): PATEL, AMOL H
• Application Number:
  US15/271,889
• Publication Number:
  US 20170011839A1
• Time in Patent Office: 594 Days
• CPC Class Codes: H01F 27/245 made from sheets, e.g. grain-oriented H01F27/26 takes precedence
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 27/36 Electric or magnetic shields or screens movable for varying inductance H01F21/10
• CPC Class Codes: H01F 27/363 made of electrically conductive material
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H04M 1/03 Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
• CPC Class Codes: H05K 1/0216 Reduction of cross-talk, noise or electromagnetic interference grounding H05K1/0215
• CPC Class Codes: H05K 1/18 Printed circuits structurally associated with non-printed electric components H05K1/0201, H05K1/023, H05K1/0243, and H05K1/16 take precedence
• CPC Class Codes: H05K 2201/10371 Shields or metal cases

Abstract

An electronic device is disclosed. An electronic device comprises a first magnetic sheet, a coil, and a board. The first magnetic sheet has a first surface and a second surface opposite to the first surface. The coil is located on the first surface. The board has a third surface facing the second surface and has a first component on the third surface. The first magnetic sheet has a through hole that penetrates therethrough from the first surface to the second surface in a region of the first surface, the region being surrounded by the coil. The first component has a first portion facing the through hole.

Claims

1. An electronic device, comprising:

a first magnetic sheet having a first surface and a second surface opposite to the first surface;

a coil located on the first surface; and

a board having a third surface facing the second surface, wherein

the board has a first component on the third surface,

the first magnetic sheet has a through hole that penetrates therethrough from the first surface to the second surface in a region of the first surface, the region being surrounded by the coil,

the first component has a first portion facing the through hole,

the electronic device further comprising a shield plate between the first magnetic sheet and the first component, and

the shield plate comprising a protruding portion covering the first component and wherein the shield plate is mounted on the board.

2. The electronic device according to claim 1, wherein

the first component has a second portion, and

the second portion is located in space sandwiched between a first opening of the through hole on the first surface side and a second opening of the through hole on the second surface side.

3. The electronic device according to claim 1, wherein

the first component has a fourth surface facing the third surface and a fifth surface opposite to the fourth surface, and

a length between the third surface and the fifth surface is longer than a length between the third surface and the second surface.

4. The electronic device according to claim 1, wherein

the board has a plurality of second components including the first component, and

the first component is the tallest component of the plurality of second components.

5. An electronic device, comprising:

a first magnetic sheet having a first surface and a second surface opposite to the first surface;

a coil located on the first surface; and

a board having a third surface facing the second surface, wherein

the board has a first component on the third surface,

the first magnetic sheet has a through hole that penetrates therethrough from the first surface to the second surface in a region of the first surface, the region being surrounded by the coil,

the first component has a first portion facing the through hole, and

the electronic device further comprising a second magnetic sheet that is located on the first surface side and faces the through hole.

6. The electronic device according to claim 5, wherein the second magnetic sheet is thinner than the first magnetic sheet.