PCB heatsink
First Claim
Patent Images
1. A multilayer printed circuit board and heatsink combination comprising:
- (a) a multilayer printed circuit board having heat generating components on at least one face thereof, (b) a heatsink overlying the at least one face of the board and the heat-generating components thereon, (c) the heatsink having a surface conforming in part in contour to the heat-generating components on the board so as to fit on and around these components, (d) a heat conducting dielectric layer sandwiched between and in heat-conducting contact with the heatsink and the board and its heat-generating components, and (e) a plurality of connector clips securing the heatsink to the board.
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Accused Products
Abstract
A heatsink for a printed circuit board (PCB) overlies most or all of the board. It is clamped tightly to the board with its board-facing surface in close proximity to the heat-generating components on the board. A pliant, thermally-conductive dielectric layer is sandwiched between the PCB and the facing surface of the heatsink. Lands at various heights are formed on the heatsink surface facing the PCB to be in good heat-conducting proximity to the surfaces of heat-generating circuit components of various heights on the PCB.
21 Citations
18 Claims
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1. A multilayer printed circuit board and heatsink combination comprising:
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(a) a multilayer printed circuit board having heat generating components on at least one face thereof, (b) a heatsink overlying the at least one face of the board and the heat-generating components thereon, (c) the heatsink having a surface conforming in part in contour to the heat-generating components on the board so as to fit on and around these components, (d) a heat conducting dielectric layer sandwiched between and in heat-conducting contact with the heatsink and the board and its heat-generating components, and (e) a plurality of connector clips securing the heatsink to the board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A multilayer printed circuit board and heatsink combination comprising:
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(a) a multilayer printed circuit board;
(b) a power circuit carried on at least one surface of the board;
(c) magnetics having cores penetrating the board and buried windings on interior surfaces of layers of the multilayer board;
(d) heat-generating electronic components on the at least one surface of the board;
(e) a heatsink overlying the cores and the heat-generating electronic components on the at least one surface of the board;
(f) a series of lands of varying heights adapted to be closely proximate the cores and heat-generating electronic components upon the heatsink being secured to the board;
(g) a thermally conductive, pliant, dielectric layer sandwiched between the board and the heatsink in contact with the cores and the heat-generating electronic components on the at least one surface of the board and the lands on the heatsink; and
(h) means for securing the heatsink to the board. - View Dependent Claims (11)
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12. A heatsink for a printed circuit board having heat-generating components mounted on at least one face;
- the heatsink comprising a plate of heat-conductive material having a first surface contoured to accept into recesses formed therein heat-generating components on the board in heat-conducting association with the heatsink.
- View Dependent Claims (13, 14, 15, 16, 17, 18)
Specification