Actuator with a built-in reed switch

Details Actuator with a built-in reed switch Actuator with a built-in reed switch

1990-08-31

1992-05-12

Pellinen, A. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361187, 335151, H01H 4704

Patent

active

051133083

ABSTRACT:
An actuator with a built-in reed switch includes a solenoid, a plunger made of magnetic material and movable within a coil of the solenoid, a plunger receiver made of magnetic material and fixedly mounted in the solenoid coil, a magnetic responsive reed switch connected in series to the solenoid coil and disposed near a gap between the plunger and the plunger receiver, and a sensor terminal branched from a junction between the solenoid coil and the reed switch, whereby contacts of the reed switch are closed by a magnetic field generated when a current flows through the sensor terminal in the solenoid coil. The actuator shifts from high sensitivity to lower sensitivity and supplies a sufficient driving force as an actuator.

REFERENCES:
patent: 3486139 (1969-12-01), Armstrong et al.
patent: 3568008 (1971-03-01), Tanimura et al.
patent: 4712154 (1987-12-01), Modsen
Wiley, C. W., "Home Appliances: Market for Solid State", Electronics, vol. 36, Sep. 13, pp. 14-15.

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