Acceleration limit switch

Details Acceleration limit switch Acceleration limit switch

1995-09-19

1997-01-28

Walczak, David J.

Electricity: circuit makers and breakers

Electric switch details

Contact

200 6145R, 200 6145M, 200DIG29, 200DIG9, H01H 900

Patent

active

055970664

ABSTRACT:
An acceleration limit switch is disclosed, which includes a ball-shaped inertia body made of ferromagnetic material. The ball-shaped inertia body is maintained in a resting position by a permanent magnet opposed on a printed circuit board by two contact elements symmetrically engaging each other. An elastic, conductive diaphragm is mounted between the inertia body and the printed circuit board; the diaphragm being deformed when impacted by the inertia body and thereby connecting the contact element. The interior space of the acceleration limit switch, which is symmetrical with respect to rotation, has a ring-shaped bearing surface for a thin, conductive plastic mat. The printed circuit board, as the cover of the housing, rests on a housing bridge extending fully around, with a sealing ring being disposed on the housing bridge. The printed circuit board is supported by elastic hooks with deformation of the sealing ring, with the hook preferably being shaped by molding on the side of the housing.

REFERENCES:
patent: 5053588 (1991-10-01), Bolender
patent: 5068502 (1991-11-01), Devenport
patent: 5237134 (1993-08-01), Thuen et al.
patent: 5322981 (1994-06-01), Grossi, III et al.

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