Magnet switch for starter

Details Magnet switch for starter Magnet switch for starter

1995-02-22

1996-06-11

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

335131, H01H 6702

Patent

active

055259472

ABSTRACT:
A magnet switch for starter which controls electric power supply to a motor in two steps is disclosed. The magnet switch has a fixed contact connected to a battery, an exication coil and a plunger. On the plunger, a first movable contact, a second movable contact and an elastic resistor member are coupled. When the plunger is attracted by the coil, the secont movable contact first contacts the fixed contact so that the motor rotates at a low speed with electric power from the battery supplied through the elastic resistor member. When the plunger is further attracted, the first movable contact contacts the fixed contact so that the motor rotates at a higher speed with the electric power without passing through the eleastic resistor member.

REFERENCES:
patent: 4305002 (1981-12-01), Mortensen
patent: 4725801 (1988-02-01), Snyder
patent: 5214401 (1993-05-01), Kimura et al.

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