Browse Prior Art Database

Self-Clamped Transformer Assembly

IP.com Disclosure Number: IPCOM000046445D
Original Publication Date: 1983-Jul-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

Jennings, JH: AUTHOR [+2]

Abstract

The drawing shows a power transformer assembly comprising a transformer 1 and two canister capacitors 5 which are mounted by screws 7 to printed circuit board 9. One-piece support 11 is formed of resilient plastic from a two-cavity mold. Support 11 has latching arms 13 having ledges 15 which come over outer bottom plate 17 of transformer 1 and board 9 when assembled. Two cylindrical parts 19 of support 11 receive and hold in position capacitors 5. Transformer 1 has inner, bottom ledge plates 21 which enter mating slots 23 (not fully shown) in support 11. The entire assembly is interconnected and sturdy.

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Self-Clamped Transformer Assembly

The drawing shows a power transformer assembly comprising a transformer 1 and two canister capacitors 5 which are mounted by screws 7 to printed circuit board 9. One-piece support 11 is formed of resilient plastic from a two-cavity mold. Support 11 has latching arms 13 having ledges 15 which come over outer bottom plate 17 of transformer 1 and board 9 when assembled. Two cylindrical parts 19 of support 11 receive and hold in position capacitors 5. Transformer 1 has inner, bottom ledge plates 21 which enter mating slots 23 (not fully shown) in support 11. The entire assembly is interconnected and sturdy.

Transformer 1 is snapped into support 11 by ledge plates 21, first being directed from a raised angle into slots 23. Transformer 1 is then rotated downwardly, causing bottom plate 17 to deflect lower arms 13a outwardly until ledges 15a clear plate 17 and arms 13a move inwardly by their resilience. At the same time, vertical arms 13b are similarly pushed outwardly by board 9 until ledges 15b snap over the board. The lower parts of bolting 25 of transformer 1 fit in recesses 27 (one shown) provided in support 11.

When that assembly is completed, the assembly is resistant to strong impacts and is compact.

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