Miniature inductor with molded cover

Details Miniature inductor with molded cover Miniature inductor with molded cover

1986-09-02

1987-11-10

Kozma, Thomas J.

Inductor devices

With outer casing or housing

Potted type

29606, 336136, 336192, H01F 2106

Patent

active

047060581

ABSTRACT:
A miniature variable inductor comprises a coil soldered to a pair of connecting skids. These skids are clipped to two oppositely disposed lateral walls of an injection-moulded plastics cover in the shape of a hollow die. A solid part of the cover and a hollow space lie between these two walls. A central opening through these walls, the solid part of the cover and the hollow space defines a housing for a movable ferromagnetic core. There is a screwthread on at least part of this core. The coil is disposed in the aforementioned hollow space coaxially with the central opening, encapsulated in resin. The central opening has a threaded portion where it passes through the solid part of the cover. This threaded portion is complementary to the thread on the core.

REFERENCES:
patent: 3824518 (1974-07-01), Slenker
patent: 4149135 (1979-04-01), Roespel et al.
patent: 4245207 (1981-01-01), Murakami et al.

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