Insulative cradle isolation structure for electrical components

Details Insulative cradle isolation structure for electrical components Insulative cradle isolation structure for electrical components

1991-06-04

1992-07-28

Tolin, Gerald P.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

174 163, 165185, 361386, H05K 720

Patent

active

051345455

ABSTRACT:
Using a specially designed isolation structure, a pair of relatively high voltage electrical components are mounted on a metal heat sink structure secured to a side edge portion of a printed circuit power supply board. The isolation structure includes an aluminum oxide insulating cradle member having a rectangular, plate-like body portion with an inner side secured to the heat sink, and an outer side on which a spaced pair of generally U-shaped external rib structures are formed. First portions of the components are received in the interiors of the rib structures, with the balance of each component projecting outwardly from its associated rib structure. A suitable clamping structure is used to press the received components against the underlying body portion of the cradle member. The external rib structures advantageously function to inhibit shifting of the components along the body portion, and also serve as shields to increase the minimum air gap clearance lengths between the mounted components and the heat sink structure.

REFERENCES:
patent: 3766440 (1973-10-01), Baird
patent: 4646203 (1987-02-01), Ngo
patent: 4739447 (1988-04-01), Lecomte
patent: 4899255 (1990-02-01), Case
patent: 5019942 (1991-05-01), Clemens

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