Electronic apparatus

• US 20080037227A1
• Filed: 04/13/2007
• Published: 02/14/2008
• Est. Priority Date: 05/19/2006
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Fujiwara, Nobuto
• Granted Patent: US 7,474,526 B2
• Time in Patent Office: Days
• US Class Current: 361/722
• CPC Class Codes: G06F 1/203 for portable computers, e.g. for laptops
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

According to one embodiment, an electronic apparatus is provided with a circuit board contained in a case and including a first surface and a second surface formed on the reverse side of the first surface, a first heat generating component mounted on the first surface, a second heat generating component mounted on the second surface, a radiator section located off the circuit board, a first heat transfer member extending along the first surface and provided between the first heat generating component and the radiator section, and a second heat transfer member extending along the second surface and provided between the second heat generating component and the radiator section.

Claims

1. An electronic apparatus comprising:

a case;

a circuit board contained in the case and including a first surface and a second surface formed on the reverse side of the first surface;

a first heat generating component mounted on the first surface of the circuit board;

a second heat generating component mounted on the second surface of the circuit board;

a radiator section located off the circuit board;

a first heat transfer member extending along the first surface of the circuit board and provided between the first heat generating component and the radiator section; and

a second heat transfer member extending along the second surface of the circuit board and provided between the second heat generating component and the radiator section.

2. An electronic apparatus according to claim 1, which further comprises a cooling fan contained in the case, and wherein the radiator section includes a first radiator member located opposite the cooling fan and a second radiator member located side by side with the first radiator member and opposed to the cooling fan, the first heat transfer member is thermally connected to the first heat generating component and the first radiator member, and the second heat transfer member is thermally connected to the second heat generating component and the second radiator member.

3. An electronic apparatus according to claim 2, wherein the case includes a wall in which an exhaust vent opens, the cooling fan includes an exhaust port through which air is discharged toward the exhaust vent, and the first radiator member and the second radiator member are both located between the exhaust port of the cooling fan and the exhaust vent of the wall and arranged back and forth along a flow of the air.

4. An electronic apparatus according to claim 2, wherein the cooling fan is disposed in a position off the circuit board and located side by side with the circuit board along a direction parallel to the surfaces of the circuit board.

5. An electronic apparatus according to claim 2, wherein the first heat transfer member and the second heat transfer member extend along a side face on the same side of the cooling fan.

6. An electronic apparatus according to claim 2, wherein the first surface and the second surface are an upper surface and a lower surface, respectively, of the circuit board, an end portion of the first heat transfer member attached to the first radiator member is attached to an upper part of the first radiator member, and an end portion of the second heat transfer member attached to the second radiator member is attached to a lower part of the second radiator member.

7. An electronic apparatus according to claim 2, which further comprises a third heat generating component mounted on the first surface of the circuit board, a fourth heat generating component mounted on the second surface of the circuit board, a third radiator member located off the circuit board, a fourth radiator member located side by side with the third radiator member, a third heat transfer member extending along the first surface of the circuit board and located between the third heat generating component and the third radiator member, and a fourth heat transfer member extending along the second surface of the circuit board and located between the fourth heat generating component and the fourth radiator member.

8. An electronic apparatus according to claim 7, wherein an additional exhaust vent opens in a wall of the case, the cooling fan includes an additional exhaust port through which air is discharged toward the additional exhaust vent, and the third radiator member and the fourth radiator member are both located between the additional exhaust port of the cooling fan and the additional exhaust vent of the wall.

9. An electronic apparatus according to claim 1, wherein the radiator section includes a radiator member, the first heat transfer member is thermally connected to the first heat generating component and the radiator member, and the second heat transfer member is thermally connected to the second heat generating component and the radiator member.