Electronic device including flexible printed circuit board

Patent metadata

Field	Value
Publication number	US-11019736-B2
Application number	US-201916567280-A
Country	US
Kind code	B2
Filing date	Sep 11, 2019
Priority date	Sep 13, 2018
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

Disclosed is an electronic device. An electronic device according to an embodiment may include: a housing including a first plate oriented in a first direction, a second plate oriented in a second direction opposite the first direction, and a side face surrounding a space between the first plate and the second plate; a first PCB disposed in the space and including a first face oriented in the first direction, a second face oriented in the second direction, and a first electrical connector disposed on the first face; a second PCB disposed in the space closer to the second plate than the first PCB, and including a second electrical connector; a third electrical connector detachably coupled to the first electrical connector; a fourth electrical connector detachably coupled to the second electrical connector; an FPCB electrically connected between the third connector and the fourth electrical connector, and including a first portion facing the second face; and a flexible conductive member comprising a conductor disposed between the second face and the first portion.

First claim

What is claimed is:

1. An electronic device comprising:
a housing including a first plate oriented in a first direction, a second plate oriented in a second direction opposite the first direction, and a side face surrounding a space between the first plate and the second plate;
a first printed circuit board (PCB) disposed in the space and including a first face oriented in the first direction, a second face oriented in the second direction, and a first electrical connector disposed on the first face;
a second PCB disposed in the space between the second plate and the first PCB and closer to the second plate than the first PCB, and including a second electrical connector;
a third electrical connector detachably coupled to the first electrical connector;
a fourth electrical connector detachably coupled to the second electrical connector;
a flexible printed circuit board (FPCB) electrically connected between the third electrical connector and the fourth electrical connector, and including a first portion facing the second face of the first PCB and a second portion facing the first face of the first PCB; and
a flexible conductive member comprising a conductor disposed between the second face of the first PCB and the first portion of the FPCB.

2. The electronic device of claim 1 , wherein the FPCB is bent along a side wall of the first PCB and extending from the first face along the second face.

3. The electronic device of claim 1 , wherein the flexible conductive member is electrically connected between a first conductive portion exposed on the second face of the first PCB and a second conductive portion exposed to the first portion of the FPCB.

4. The electronic device of claim 1 , wherein the second PCB includes at least one of an LED and a proximity sensor on a first face of the second PCB.

5. The electronic device of claim 1 , further comprising:
a display disposed in the space and visible through at least a portion of the first plate.

6. The electronic device of claim 5 , wherein the second PCB is disposed between the display and the second plate.

7. An electronic device comprising:
a housing including an inner space;
a printed circuit board (PCB) disposed in the inner space and having a plate shape including a first face and a second face, the PCB including a first electrical connector disposed on the first face;
a flexible printed circuit board (FPCB) including a second electrical connector coupled to the first electrical connector and connected to an end thereof, and an electronic component electrically connected to the PCB, disposed adjacent to the second face of the PCB and spaced apart from the second face of the PCB; and
a flexible conductive member comprising a conductor disposed between the second face and the FPCB,
wherein the second electrical connector is electrically connected to a signal transmission line and a first power transmission line, and the flexible conductive member is electrically connected to a second power transmission line.

8. The electronic device of claim 7 , wherein a current supplied through the second power transmission line is higher than a current supplied through the first power transmission line.

9. The electronic device of claim 7 , wherein the FPCB extends from the second electrical connector to an edge of the PCB, the FPCB is spaced apart from an inner side wall of the housing, the FPCB is bent along the edge of the PCB, and the FPCB extends along the second face.

10. The electronic device of claim 7 , wherein the FPCB comprises multiple layers.

11. The electronic device of claim 10 , wherein a first layer of the FPCB includes the second power transmission line and a metal plate configured to dissipate heat.

12. The electronic device of claim 11 , wherein a second layer of the FPCB includes the first power transmission line and the signal transmission line.

13. The electronic device of claim 11 , wherein a second layer of the FPCB includes the first power transmission line and a third layer of the FPCB includes the signal transmission line.

14. The electronic device of claim 10 , wherein the FPCB further includes an insulating member comprising an insulating material surrounding the multiple layers.

15. The electronic device of claim 14 , wherein the insulating member includes an opening at a position corresponding to the flexible conductive member exposing a portion of the second power transmission line.

16. The electronic device of claim 7 , wherein the electronic component includes a proximity light sensor and an IR LED.

17. The electronic device of claim 16 , wherein the proximity light sensor and the IR LED are exposed to an outside through a portion of the housing.

18. The electronic device of claim 17 , wherein the housing includes a transparent plate enclosing a face of the housing in which the proximity light sensor and the IR LED are exposed.

19. The electronic device of claim 16 , wherein the IR LED is connected to the second power transmission line.

20. The electronic device of claim 7 , wherein the first electrical connector and the second electrical connector are board-to-board (B2B) connectors.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Woo Jeong
• Song Kwonho
• Choi Seungki
• Choi Youngsik
• Lee Soyoung

Classifications

• H05K1/147

  at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence) · CPC title

• H05K1/0242

  Structural details of individual signal conductors, e.g. related to the skin effect · CPC title

• H05K1/0207

  using internal conductor planes parallel to the surface for thermal conduction, e.g. power planes · CPC title

• H04M1/0277 Primary

  for a printed circuit board assembly · CPC title

• H04M1/0274

  for an electrical connector module · CPC title