Heat sink for auxiliary circuit board
First Claim
Patent Images
1. A heat sink for mounting between a circuit board and a mounting surface, comprising:
- a planar member of heat conducting material having a first major surface adapted to mount to the circuit board and a second major surface adapted to mount to the mounting surface, said second major surface defining a mounting plane through which projects no part of said heat sink so that said second-major surface may lie flat abutting on a planar mounting surface;
a finned heat radiating member of a heat conducting material in thermal contact with said planar member, said finned heat radiating member extending perpendicularly from said planar member on a same side of said planar member as said first major surface;
a pin mounting portion for engagement with a portion of pin extending parallel to said planar member.
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Accused Products
Abstract
The heat sink is mounted on a back plane of an auxiliary circuit board and the auxiliary circuit board is mounted on a main circuit board. In one embodiment, the heat sink is planer and extends between parallel auxiliary and main circuit boards. A finned heat dissipating member is at one side of the planar portion. Mounting pins in channels mount the heat sink to the main circuit board. The second embodiment is unshaped and stands on edge to mount the auxiliary circuit board perpendicular to the main circuit boards. Mounting pins in channels of the second embodiment likewise mount the heat sink to the main circuit board.
29 Citations
14 Claims
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1. A heat sink for mounting between a circuit board and a mounting surface, comprising:
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a planar member of heat conducting material having a first major surface adapted to mount to the circuit board and a second major surface adapted to mount to the mounting surface, said second major surface defining a mounting plane through which projects no part of said heat sink so that said second-major surface may lie flat abutting on a planar mounting surface; a finned heat radiating member of a heat conducting material in thermal contact with said planar member, said finned heat radiating member extending perpendicularly from said planar member on a same side of said planar member as said first major surface; a pin mounting portion for engagement with a portion of pin extending parallel to said planar member. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12)
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7. A heat sink assembly for mounting between a circuit board and a mounting surface, comprising:
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a planar member of a heat conducting material, said planar member having a first major surface adapted for mounting to the circuit board and a second major surface opposite said first major surface adapted for mounting on said mounting surface; a finned heat radiating portion of a heat conducting material, said finned heat radiating portion being thermally connected to said planar member at one side of said planar member, said finned heat radiating portion extending perpendicularly from said planar member from said first major surface; means defining first and second channels in said second major surface of said planar member at a position substantially opposite said finned heat radiating portion, said first channel being of a first depth and said second channel being of a second depth which is greater than said first depth, said first and second channels extending substantially parallel to one another; mounting pins extending into one of said first and second channels and adapted to mount said heat sink to said mounting surface. - View Dependent Claims (8)
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13. A heat sink for mounting between a circuit board and a mounting surface, comprising:
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a planar member of heat conducting material having, a first major surface adapted to mount to the circuit board and a second major surface adapted to mount to the mounting surface; a finned heat radiating member of a heat conducting material in thermal contact with said planar member, said finned heat radiating member extending perpendicularly from said planar member, said finned heat radiating member having a substantially constant cross section in a longitudinal direction parallel to said planar member; a pin mounting channel extending into said planar member parallel to said longitudinal direction of said finned heat radiating member, said pin mounting channel being open to one of said first major surface and said second major surface. - View Dependent Claims (14)
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Specification