Heat-radiating structure and electronic device including the same

Patent metadata

Field	Value
Publication number	US-10617033-B2
Application number	US-201715846952-A
Country	US
Kind code	B2
Filing date	Dec 19, 2017
Priority date	Jan 6, 2017
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

A portable communication device is provided. The portable communication device includes a battery, a printed circuit board including one or more circuit devices driven using power from the battery, and a bracket including a first area for receiving the battery and a second area for receiving the printed circuit board, wherein a slit is formed in at least a portion of a boundary area of the first area and the second area to reduce heat spread. According to an embodiment of the present disclosure, in an electronic device, a heat-radiating structure is provided between a PCB and a bracket where a battery is seated, rerouting the path along which heat radiation from some circuit devices on the PCB flow to the battery to suppress a rise in temperature in the battery.

First claim

What is claimed is:

1. A portable communication device, comprising:
a battery;
a printed circuit board comprising one or more circuit devices driven using power from the battery; and
a bracket comprising a first area for receiving the battery and a second area for receiving the printed circuit board,
wherein a slit is formed in at least a portion of a boundary area of the first area and the second area to reduce heat spread,
wherein the slit comprises a first slit area having at least one of a first shape, a first size, a first depth, or a first direction, and a second slit area extending from the first slit area and having at least one of a second shape, a second size, a second depth, or a second direction different from the first slit area, and
wherein a bending portion of the first slit area is curved toward the one or more circuit devices to prevent formation of a heat path from the one or more circuit devices to the battery of the first area.

2. The portable communication device of claim 1 , wherein the slit forms an opening that penetrates at least a surface of the bracket.

3. The portable communication device of claim 1 ,
wherein the slit is formed of a material having a first thermal conductivity, and
wherein a proximate area where the slit is not formed in the bracket is formed of a material having a second thermal conductivity.

4. The portable communication device of claim 1 , wherein a substantial overall area of the slit is formed in the boundary area.

5. The portable communication device of claim 1 ,
wherein the slit is formed adjacent a circuit device disposed in a proximate area of an upper area of the bracket among the one or more circuit devices, and
wherein the circuit device generates more heat than another circuit device of the one or more circuit devices.

6. The portable communication device of claim 1 , wherein a bent area is formed in the first slit area but not in the second slit area.

7. The portable communication device of claim 6 ,
wherein the one or more circuit devices comprise a first circuit device for managing power of the battery and a second circuit device for executing at least one program, and
wherein the first slit area is positioned adjacent the first circuit device, and the second slit area is positioned adjacent the second circuit device.

8. The portable communication device of claim 1 , wherein the slit further comprises a third slit area shaped as a step having a different height from the first slit area or the second slit area.

9. The portable communication device of claim 8 , wherein the slit forms a path along which heat radiated from the one or more circuit devices passes through the third slit area to the first slit area or the second slit area.

10. The portable communication device of claim 1 , wherein at least one heat conducting member is disposed in at least a portion of an area where at least one heat-radiating circuit device of the one or more circuit devices is disposed in the second area to form a heat conducting path along which radiated heat is moveable in a direction different from a direction in which the radiated heat is directed to the battery.

11. The portable communication device of claim 10 , wherein another heat conducting member is disposed in at least a portion of the first area.

12. The portable communication device of claim 11 , wherein the at least one heat conducting member is connected with the other heat conducting member.

13. The portable communication device of claim 10 , wherein the at least one heat conducting member comprises a first heat conducting member with a first thermal conductivity and a second heat conducting member formed on the first heat conducting member and having a second thermal conductivity.

14. The portable communication device of claim 1 , wherein at least one recess is formed in at least a portion of an area where at least one heat-radiating circuit device among the one or more circuit devices is disposed in the second area.

15. The portable communication device of claim 14 ,
wherein the bracket comprises a hole penetrated to an outside, and
wherein the at least one recess forms at least a portion of a heat conducting path along which radiated heat is moveable to the hole.

16. The portable communication device of claim 1 ,
wherein the bracket comprises a shielding wall disposed between the first area and the second area, and
wherein at least a portion of the slit or another slit is formed in the shielding wall.

17. The portable communication device of claim 1 , wherein the slit surrounds at least some of the one or more circuit devices.

18. A portable communication device, comprising:
a battery;
a printed circuit board comprising at least one circuit device driven using power from the battery; and
a bracket comprising a first area for receiving the battery and a second area for receiving the printed circuit board,
wherein the bracket comprises a heat-radiating structure formed between the first area and the second area or in at least one of the first area and the second area to reduce conduction of heat generated from some circuit devices of the at least one circuit device to the battery,
wherein the heat-radiating structure comprises a first slit area having at least one of a first shape, a first size, a first depth, a first direction, or a first thermal conductivity, and a second slit area extending from the first slit area and having at least one of a second shape, a second size, a second depth, a second direction, or a second thermal conductivity different from the first slit area, and
wherein a bending portion of the first slit area is curved toward the at least one circuit device to prevent formation of a heat path from the at least one circuit device to the battery of the first area.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Min Seong-Jae
• Seo Ji-Hun
• Lee Sea-Young
• Lee Jong-Min
• Na Hyo-Seok

Classifications

• H05K7/2039 Primary

  characterised by the heat transfer by conduction from the heat generating element to a dissipating body (arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00) · CPC title

• G06F1/203

  for portable computers, e.g. for laptops · CPC title

• H05K5/0086

  portable, e.g. battery operated apparatus (casings for switching devices H01H9/02) · CPC title

• H05K7/1417

  having securing means for mounting boards, plates or wiring boards (H05K7/1461 takes precedence) · CPC title

• H04M1/0202

  Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets (constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03) · CPC title