Title:
PERSONAL COMPUTER
Document Type and Number:
Japanese Patent JP3663706
Kind Code:
B2
Abstract:
PURPOSE: To cool the surface of a heat generating element and an input device such as a keyboard below specific temperature even when the portable personal computer has the high heat generating element mounted in a flat housing equipped with the input device.
CONSTITUTION: A 1st space is formed between the back of the operation part of the keyboard and an electronic circuit board 2 and the surface where the high heat generating element 1a mounted on the electronic circuit board 2 is installed on a different surface from the surface facing the input device; and a 2nd space is formed of the electronic circuit board 2 and an electronic circuit board 3, and a fan 4 is installed in the housing 30 so that cooling air flows from the 1st space to the 2nd space. On the wall surface of the operation part of the input device, a flow passage is constituted which makes outside air flow in the housing 30 through a suction hole 8.
Inventors:
Shigeo Ohashi
Tadakatsu Nakajima
Yoshihiro Kondo
Honma Mitsuru
Kenji Onishi
Hiroshi Tsuzaki
Hitoshi Matsushima
Tadakatsu Nakajima
Yoshihiro Kondo
Honma Mitsuru
Kenji Onishi
Hiroshi Tsuzaki
Hitoshi Matsushima
Application Number:
JP282796A
Publication Date:
June 22, 2005
Filing Date:
January 11, 1996
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G06F1/00; H05K7/20; (IPC1-7): G06F1/00; H05K7/20
Domestic Patent References:
| JP4284519A | ||||
| JP4306718A |
Attorney, Agent or Firm:
Yasuo Sakuta
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