Electronic device including shield member for shielding at least part of magnetic force generated by magnetic substance and connection portion including property of nonmagnetic substance connected to shield member

Patent metadata

Field	Value
Publication number	US-10893637-B2
Application number	US-201916281752-A
Country	US
Kind code	B2
Filing date	Feb 21, 2019
Priority date	Feb 21, 2018
Publication date	Jan 12, 2021
Grant date	Jan 12, 2021

Abstract

An electronic device including a shield structure is provided. The electronic device includes a first device including a first magnetic substance, a second device including a second magnetic substance, and a shield structure configured to shield at least part of a magnetic force generated between the first magnetic substance and the second magnetic substance, wherein the shield structure includes a shield member disposed between the first device and the second device and including a property of a magnetic substance, and a connecting member physically connected to at least part of the shield member and including a property of a nonmagnetic substance, wherein at least part of the connecting member is physically connected to a circuit board.

First claim

What is claimed is:

1. An electronic device, comprising:
a circuit board;
a first device comprising a first magnetic substance;
a second device comprising a second magnetic substance; and
a shield structure configured to shield at least part of a magnetic force generated between the first magnetic substance and the second magnetic substance,
wherein the shield structure comprises:
a shield member disposed closer to any one device between the first device and the second device and including a property of a magnetic substance and having plate-like structure; and
a connecting member directly connected to at least part of the shield member on a first side and including a property of a nonmagnetic substance, and

wherein at least part of the connecting member is directly connected to the circuit board on a second side opposite the first side.

2. The electronic device of claim 1 , wherein the shield member is made of a ferromagnetic material capable of shielding the at least part of the magnetic force.

3. The electronic device of claim 1 , wherein the connecting member is made of a nonmagnetic material magnetically separated from the at least part of the magnetic force.

4. The electronic device of claim 3 , wherein the nonmagnetic material is made of a magnetically weak metal that is not affected by a magnetic field.

5. The electronic device of claim 1 , wherein the shield member and the connecting member contact each other with a surface mount device (SMD) method.

6. The electronic device of claim 1 , wherein the shield member is bent at least partially.

7. The electronic device of claim 1 , wherein the circuit board has a groove configured to fix the connecting member.

8. The electronic device of claim 1 , wherein, in the connecting member,
a first region is disposed to correspond to a first groove of the circuit board,
a second region is disposed to correspond to a second groove of the circuit board, and
a third region is formed to contact a lower surface of the circuit board.

9. The electronic device of claim 8 , wherein the second region is formed to contact the at least part of the shield member.

10. The electronic device of claim 8 , wherein the first region and the second region are formed vertically to both sides of the third region.

11. The electronic device of claim 8 , wherein the first region and the second region have different widths and lengths.

12. The electronic device of claim 1 ,
wherein the circuit board comprises a weak part requiring reinforcement between the first device and the second device, and
wherein the shield structure is disposed in the weak part and is configured to reinforce the weak part in an extended plate-like structure or a bending structure.

13. The electronic device of claim 12 , wherein the connecting member is configured to function as a member for reinforcing strength of the weak part.

14. The electronic device of claim 13 , wherein the connecting member has a length and a width corresponding to a length and a width of the weak part.

15. The electronic device of claim 1 , wherein the shield member is disposed closer to one device side based on at least functional characteristics of the first device and the second device.

16. The electronic device of claim 15 , wherein the shield member is configured to be equal to or larger than a size of the first magnetic substance and the second magnetic substance.

17. An electronic device, comprising:
a circuit board;
a first device comprising a first magnetic substance;
a second device comprising a second magnetic substance; and
a shield structure configured to shield at least part of a magnetic force generated between the first magnetic substance and the second magnetic substance,
wherein the shield structure comprises:
a shield member disposed closer to any one device between the first device and the second device and including a property of a magnetic substance capable of shielding the at least part of the magnetic force and having plate-like structure; and
a connecting member directly connected to at least part of the shield member on a first side and directly connected to the circuit board on a second side opposite the first side, and

wherein the connecting member has a property of a nonmagnetic substance magnetically separated from the at least part of the magnetic force.

18. The electronic device of claim 17 , wherein at least part of the connecting member is physically connected to the circuit board, and at least another portion thereof is physically connected to the shield member.

19. The electronic device of claim 17 , wherein the shield member is disposed closer to one device side based on at least functional characteristics of the first device and the second device and is configured to be equal to or larger than a size of the magnetic substance.

20. An electronic device, comprising:
a device comprising a magnetic substance;
a circuit board; and
a shield structure configured to shield at least part of a magnetic field generated by the magnetic substance,
wherein the shield structure comprises:
a shield member disposed between the device and another device included in the electronic device and including a property of a ferromagnetic substance capable of shielding the at least part of the magnetic field; and
a connecting member physically connected between the circuit board and at least part of the shield member,

wherein the connecting member has a property of a nonmagnetic substance magnetically separated from the at least part of the magnetic field,
wherein the connecting member is directly connected to at least part of the shield member on a first side and directly connected to the circuit board on a second side opposite the first side, and
wherein the shield member disposed closer to any one device between the device and the another device and having plate-like structure.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Gihoon
• Kang Seunggoo
• Kim Yonghwa
• Kim Hongjun
• Son Wangik
• Lee Jaehwan
• CHOI Seungbum
• Lim Jaedeok

Classifications

• H05K9/0022 Primary

  of components mounted on printed circuit boards [PCB] (shields integrated within PCB H05K1/0218; shields integrated within component packages H10W42/20) · CPC title

• H05K9/0075 Primary

  Magnetic shielding materials · CPC title

• H05K1/0216

  Reduction of cross-talk, noise or electromagnetic interference (grounding H05K1/0215) · CPC title

• H05K5/0247

  Electrical details of casings, e.g. terminals, passages for cables or wiring · CPC title

• H05K9/002

  with localised screening · CPC title