Heat sink having air movement device positioned among tins and between heating elements
First Claim
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1. A heat sink for removing heat from at least two heating elements mounted on a printed wiring board, comprising:
- a base member having a lower surface and an upper surface, said lower surface being mounted on said first and second heating elements, said upper surface having a blowing region located between said first and second heating elements, and a plurality of upwardly projecting radiation fins formed on the upper surface except at said blowing region; and
an air blower provided in said blowing region for circulating air through said radiation fins.
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Abstract
The heat sink of the present invention applicable to at least two heating elements including two integrated circuit packages includes a base member fixed to the integrated circuit packages and having a plurality of fins, and air cooling means provided at a substantially central position of the base member. This construction allows an improvement in reliability, a reduction in noise, and a reduction in power consumption.
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Citations
17 Claims
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1. A heat sink for removing heat from at least two heating elements mounted on a printed wiring board, comprising:
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a base member having a lower surface and an upper surface, said lower surface being mounted on said first and second heating elements, said upper surface having a blowing region located between said first and second heating elements, and a plurality of upwardly projecting radiation fins formed on the upper surface except at said blowing region; and an air blower provided in said blowing region for circulating air through said radiation fins. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A heat generating and cooling device, comprising:
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two heating elements mounted on a printed circuit board with a spacing area therebetween; a base member having opposing lower and upper surfaces, the lower surface being secured to the two heating elements and having a spacing area facing the spacing area between the heating elements, the upper surface having a blowing region located to oppose at least a portion of the spacing area of the lower surface, the upper surface having upwardly projecting heat radiation fins formed thereon except at the blowing region; and an air blower positioned in the blowing region for moving air through the heat radiation fins.
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Specification