Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – With provision to conduct electricity from panel circuit to...
Patent
1999-01-12
2000-07-25
Nguyen, Khiem
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
With provision to conduct electricity from panel circuit to...
324755, H01K 909
Patent
active
060930306
ABSTRACT:
An apparatus for electrically coupling a plurality of DUT terminals to corresponding terminals of a circuit. The apparatus includes a corresponding plurality of contact devices aligned both with the DUT terminals and the circuit terminals. Each contact device includes a fulcrum on which a contact lever is rockable over a range by pressing a corresponding DUT terminal against it. Each lever includes a first arm of "X" length on a DUT side of the fulcrum and a second arm of "Y" length on an opposite side of the fulcrum. A biasing spring, having travel, reacts against and through the second arm to resist rocking of the lever. Included is a way for electrically coupling the contact lever and its corresponding circuit terminal. The contact device operates according to the principle that contact lever travel, during rocking caused by a pressing upon it of a corresponding DUT terminal, is greater than responsive travel of the bias means according to a ratio of X/Y. The invention also includes a housing to contain the lever and bias means of each device in relation to each other. Preferably the bias spring of each device is a metal spring which is U-shaped and includes a fulcrum at an end of one long arm of the spring, the second long arm being a leaf spring reacting against the second (Y) arm of the contact lever.
REFERENCES:
patent: 5841640 (1998-11-01), Shibata
patent: 6019612 (2000-02-01), Hasegawa et al.
Riechelmann Bernd
Twigg Raymond
Wang Jason Hsang
Nguyen Khiem
Tighe Thomas J.
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