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Portable electronic apparatus

An electronic device, portable technology, used in electrical digital data processing, instrumentation, cooling/ventilation/heating retrofit, etc., which can solve problems such as increasing noise

Inactive Publication Date: 2008-08-06
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the speed of the cooling fan is increased, more air than needed will be sucked in from the space with low draft resistance, which is useless and increases the noise

Method used

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  • Portable electronic apparatus
  • Portable electronic apparatus
  • Portable electronic apparatus

Examples

Experimental program
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Embodiment Construction

[0023] Embodiments of the present invention will be described below based on drawings in which the embodiments are applied to portable computers.

[0024] 1 to 3 show a portable computer 1 as a portable electronic device according to a first embodiment of the present invention. As shown in FIG. 1 , a portable computer 1 has a main body 2 and a display unit 3 .

[0025] As shown in FIG. 1 , the main body 2 includes a box-shaped casing 4 . The cabinet 4 includes an upper wall 4a, a peripheral wall 4b, and a lower wall 4c. For example, the cabinet 4 is divided into a cabinet cover 5 including an upper wall 4a, and a cabinet bottom 6 including a lower wall 4c. The case cover 5 is combined with the case bottom 6 from above, and is detachably supported on the case bottom 6 . The upper wall 4 a supports the keyboard 7 . Vent hole portions 4e are provided in the peripheral wall 4b. The exhaust hole portion 4e includes a plurality of exhaust holes 4d opened in the peripheral wall ...

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PUM

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Abstract

A portable electronic apparatus includes a casing (4) provided with an exhaust hole part (4e), a printed circuit board (15) contained in the casing (4), an exothermic body (16) mounted on the printed circuit board (15), a first cooling fan (21) and a second cooling fan (22) which are contained in the casing (40. The casing (4) contains an upper space (S1) extending above the printed circuit board (15) and a lower space (S2) extending below the printed circuit board (15). The first cooling fan (21) is arranged in the upper space (S1), and is provided with an inlet port (31a) opened in the upper space (S1), and an exhaust port (31b) directed to the exhaust hole part (4e). The second cooling fan (22) is arranged in the lower space (S2), and is provided with an inlet port (31a) opened in the lower space (S2), and an exhaust port (31b) directed to the exhaust hole part (4e).

Description

technical field [0001] One embodiment of the present invention relates to a portable electronic device having multiple cooling fans. Background technique [0002] Portable electronic devices such as laptop computers are often equipped with cooling fans in the housing. Japanese Patent Application Publication No. 2000-349475 discloses an electronic device equipped with a fan for cooling electronic components mounted on a printed circuit board. The cooling fan consists of an upper rotor and a lower rotor, which are respectively mounted on two sides of the printed circuit board. The upper rotor has a front fan section. The lower rotor has a bottom fan section. The upper rotor and the lower rotor are joined to each other by the rotor shaft penetrating the printed circuit board. [0003] According to such a cooling fan, the stator required to rotate the cooling fan can be directly mounted on the printed circuit board, and thus the space necessary for arranging the cooling fan ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20G06F1/20
CPCG06F1/203
Inventor 富冈健太郎
Owner KK TOSHIBA