Solenoid valve device

Details Solenoid valve device Solenoid valve device

1992-10-23

1995-01-17

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335260, 336 96, H01F 700

Patent

active

053829336

ABSTRACT:
Disclosed is a solenoid valve device having a bobbin assembly 3 including an outer yoke 105 as a magnetic circuit, a solenoid coil 20 positioned within the outer yoke 105, and a connector pin 107 for supplying the electric current to the solenoid coil 20. The bobbin assembly 3, which is molded of at least two layers of resins, has an inner resin section 120 for integrally setting at least the outer yoke 105 and the solenoid coil 20 together, and an outer resin section 125 to enclose the inner resin section 120, forming the outer surface of the bobbin assembly 3. This inner resin section 120 is formed of a resin having a higher coefficient of thermal expansion than the outer resin section 125, while the outer resin section 125 is formed of a resin having a higher dimensional stability than the inner resin section 120.

REFERENCES:
patent: 2743308 (1956-04-01), Bardsley
patent: 4019167 (1977-04-01), Barker
patent: 5138292 (1992-08-01), Forster
patent: 5142103 (1992-08-01), Stine
patent: 5155660 (1992-10-01), Yamada et al.
patent: 5249101 (1993-09-01), Frey et al.

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