Electric switching device and method of making a magnetic angle

Details Electric switching device and method of making a magnetic angle Electric switching device and method of making a magnetic angle

1998-01-21

1999-04-06

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

335281, H01H 6702

Patent

active

058924230

ABSTRACT:
The electrical switching apparatus includes a housing (10), a coil (20) arranged in the housing (10), at least two switch terminals (35,50,60) arranged in the housing (10), a magnetic angle piece (30) in the housing (10) including a core (32) for the coil (20) and an armature (42) resiliently mounted on the magnetic angle piece (30) for making electrical contact between two switch terminals (35,50,60). The magnetic angle piece is preferably made by a method including punching or stamping a nearly rectangular piece (39) from sheet metal, forming a U-shaped opening around a separately bendable tongue (32a) in a central region of the nearly rectangular piece (39) so that side pieces (30a) are formed on opposite sides of the U-shaped opening (38) and a connecting piece (31a) connects the side pieces (30a) on another end of the rectangular piece (39) opposite from one switch terminal; bending the separately bendable tongue (32a) at right angles to a remaining portion of the nearly rectangular piece (39) including the side pieces (30a) to form the core (32) of the coil (20) and bending the connecting piece (31a) at substantially right angles to form an upper portion (31) of the magnetic angle piece arranged substantially parallel to the core (32).

REFERENCES:
patent: 4101855 (1978-07-01), Drapeau
patent: 4684909 (1987-08-01), Dittmann
patent: 4924197 (1990-05-01), Siepmann

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