Electromagnetic relay

Details Electromagnetic relay Electromagnetic relay

1987-05-28

1988-04-26

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Polarity-responsive

335 78, 335121, H01H 5122

Patent

active

047407697

ABSTRACT:
A relay includes a spool, or coil (3 and 4), and a yoke (5) next to the spool. In front of the spool, an armature (8) that activates a contact spring (16) is accomodated in a contact space positioned upstream in one of the free sides of the armature. The contact spring has an initial leg (16a) extending straight across the overall width of the relay and a U-shaped second leg (16b) mounted on the first. The free end of the U-shaped spring leg (16b) operates in conjunction with two reciprocal-contact elements (13 and 14). The generally Y shape results in a contact spring (16) with a maximum possible free length and hence a low spring constant, meaning a low relay-response output, while retaining the prescribed compact design.

REFERENCES:
patent: 3295078 (1966-12-01), Hrynewycz
patent: 4199740 (1980-04-01), Woods
U.S. Ser. No. 858,921 (corresponding to German application P 35 38 613.4).
European Search Report.

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