Cooling device capable of reducing thickness of electronic apparatus
First Claim
1. A printed circuit board unit with a cooling device, comprising:
- a printed circuit board;
a ventilation fan rotating around a rotation axis intersecting the printed circuit board, the ventilation fan being positioned above a surface of the printed circuit board;
a housing wall standing from a surface of the printed circuit board at a periphery of the ventilation fan;
an outlet defined in the housing wall;
an electronic component mounted on the printed circuit board, andan electronically conductive wiring pattern extending over the surface of the printed circuit board inside the housing wall and connected to the electronic component.
1 Assignment
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Accused Products
Abstract
A fan housing of a fan unit includes a housing wall standing from the surface of a printed circuit board. The printed circuit board serves to establish the fan housing in cooperation with the housing wall. The fan housing further includes a ceiling wall connected to the housing wall. The ceiling wall extends along a datum plane parallel to the surface of the printed circuit board. A high speed airflow can be generated within the fan housing. The airflow promotes the heat radiation from the printed circuit board. An electrically conductive wiring pattern extending over the surface of the printed circuit board may further promote the heat radiation from the printed circuit board.
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Citations
15 Claims
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1. A printed circuit board unit with a cooling device, comprising:
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a printed circuit board; a ventilation fan rotating around a rotation axis intersecting the printed circuit board, the ventilation fan being positioned above a surface of the printed circuit board; a housing wall standing from a surface of the printed circuit board at a periphery of the ventilation fan; an outlet defined in the housing wall; an electronic component mounted on the printed circuit board, and an electronically conductive wiring pattern extending over the surface of the printed circuit board inside the housing wall and connected to the electronic component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic apparatus comprising:
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a printed circuit board; an electronic component mounted on the printed circuit board; a ventilation fan rotating around a rotation axis intersecting the printed circuit board, the ventilation fan being positioned above a surface of the printed circuit board; a housing wall standing from a surface of the printed circuit board at a periphery of the ventilation fan; an outlet defined in the housing wall; an electronic component mounted on the printed circuit board; and an electronically conductive wiring pattern extending over the surface of the printed circuit board inside the housing wall and connected to the electronic component. - View Dependent Claims (12, 13, 14, 15)
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Specification