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Printed Circuit Card Edge Connector

IP.com Disclosure Number: IPCOM000078732D
Original Publication Date: 1973-Feb-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Gardner, PA: AUTHOR

Abstract

The edge connector shown in the figures provides low inductive and capacitive electrical coupling from contact tabs 1 on a printed-circuit card 2, to similar contact tabs 3 on a printed-circuit board 4.

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Printed Circuit Card Edge Connector

The edge connector shown in the figures provides low inductive and capacitive electrical coupling from contact tabs 1 on a printed-circuit card 2, to similar contact tabs 3 on a printed-circuit board 4.

The card 2 is supported in the required position at right angles to the board 4 by a rigid framework, shown in Fig. 1. This framework consists of two or more supporting pillars 5, which screw into a bar 6 acting as a stiffener below the board 4. A cross member 7 extends between the uppermost ends of the pillars 5 and is provided with a channel 8, for receiving one edge of the card 2. The lower end of the card 2 is supported by two bars 9, which are fixed by adhesive to each side of the card 2 and extend into slots 17 in pillars 5. A comb-like structure 10 is supported on each side of the bar 9 and carries individual contact drums 11, which provide the electrical connection between the associated pairs of tabs 1 and 3 on the card and board, respectively.

The structure 10 is shown in detail in Figs. 2 and 3, where it is seen to consist of a number of deformable struts or teeth 12 supported on each side by spring numbers 13. In the inoperative position shown in Fig. 2, the contact drums protrude beyond the edge of the card 2. When the card is forced into the operative position shown in Fig. 3, by screwing down the pillars 5, the teeth 12 buckle and in so doing cause the contact drums 11 to rotate producing a wiping action against t...