IP Library Granted Patent US 7,359,199
Granted Patent B2
US 7,359,199 · App. 11/371,256 · Granted Apr 15, 2008

Portable electronic apparatus

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Quick Facts
Patent No.
US 7,359,199
App. No.
11/371,256
Granted
Apr 15, 2008
Kind
B2
Abstract

In a portable electronic device having two circuit boards having a heat generating electronic device, a frame arranged at a position pinched between the circuit boards, a first heat radiating plate brought into contact with the frame and having a higher thermal conductivity than the frame, and a second heat radiating member transferring a heat between the first heat radiating member and two circuit boards, each of two circuit boards is fixed to the frame and two circuit boards are directly connected by a connector. Accordingly, it is possible to provide the portable electronic device which can improve a heat radiating efficiency and achieve a further thin structure.

Claims (27)

1. A portable electronic device comprising:

a first circuit board provided with a heat generating electronic device and a circuit part controlling a recording medium drive apparatus;

a second circuit board provided with a heat generating electronic device;

a support member supporting said first circuit board and said second circuit board; and

a heat radiating plate transferring the heat from said heat generating electronic devices,

wherein said first circuit board, said support member, said heat radiating plate and said second circuit board are arranged in this order, an opening portion is provided in said support member, and said first circuit board and said second circuit board are connected through said opening portion.

2. A portable electronic apparatus as claimed in claim 1 , wherein said first circuit board and said second circuit board are brought into contact with said heat radiating plate via a rubber.

3. A portable electronic device comprising:

a first circuit board provided with a heat generating electronic device and controlling a recording medium drive apparatus;

a second circuit board provided with a heat generating electronic device;

a support member supporting said first circuit board and said second circuit board; and

a heat radiating plate transferring the heat from said heat generating electronic devices,

wherein said first circuit board, said support member, said heat radiating plate and said second circuit board are arranged in this order, a notch portion is provided in said support member, and said first circuit board and said second circuit board are connected through said notch portion.

4. A portable electronic apparatus as claimed in claim 3 , wherein said first circuit board and said second circuit board are brought into contact with said heat radiating plate via a rubber.

5. A portable electronic device comprising:

first and second circuit boards each having a heat generating electronic device;

a frame arranged at a position pinched between said first and second circuit boards;

a first heat radiating plate brought into contact with said frame and having a higher thermal conductivity than said frame,

wherein each of said first and second circuit boards is fixed to said frame and said first and second circuit boards are directly connected by a connector,

wherein a second heat transfer member is disposed between said first heat radiating member and said first circuit board and between said first heat radiating member and said second circuit board.

6. A portable electronic apparatus as claimed in claim 5 , wherein an opening portion is provided in said frame and said first heat radiating member, and said two circuit boards are directly connected by the connector through said opening.

7. A portable electronic apparatus as claimed in claim 5 , wherein said two circuit boards are constituted by a drive substrate on which a circuit part controlling a drive unit of an optical disc is mounted, and a main substrate having a circuit controlling an entire function of the apparatus.

8. A portable electronic apparatus as claimed in claim 6 , wherein said two circuit boards are constituted by a drive substrate on which a circuit part controlling a drive unit of an optical disc is mounted, and a main substrate having a circuit controlling an entire function of the apparatus.

9. A portable electronic apparatus as claimed in claim 5 , wherein the portable electronic apparatus has a function of a video camera provided with at least a photographing portion and a display portion.

10. A portable electronic apparatus as claimed in claim 6 , wherein the portable electronic apparatus has a function of a video camera provided with at least a photographing portion and a display portion.

11. A portable electronic apparatus as claimed in claim 7 , wherein the portable electronic apparatus has a function of a video camera provided with at least a photographing portion and a display portion.

12. A portable electronic apparatus as claimed in claim 8 , wherein the portable electronic apparatus has a function of a video camera provided with at least a photographing portion and a display portion.

Assignments (6)
CHANGE OF NAME Recorded Dec 3, 2021
From: MAXELL HOLDINGS, LTD.
To: MAXELL, LTD.
Reel/Frame 058666/0407 →
MERGER Recorded Nov 29, 2021
From: MAXELL, LTD.
To: MAXELL HOLDINGS, LTD.
Reel/Frame 058255/0579 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 25, 2018
From: HITACHI MAXELL, LTD.
To: MAXELL, LTD.
Reel/Frame 045142/0208 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2014
From: HITACHI CONSUMER ELECTRONICS CO., LTD.; HITACHI CONSUMER ELECTRONICS CO, LTD.
To: HITACHI MAXELL, LTD.
Reel/Frame 033694/0745 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2013
From: HITACHI, LTD.
To: HITACHI CONSUMER ELECTRONICS CO., LTD.
Reel/Frame 030802/0610 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 7, 2006
From: SENGOKU, EISUKE; TADOKORO, KEIICHI
To: HITACHI, LTD.
Reel/Frame 017980/0113 →