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US 4,311,976 AGranted
Polarized reed relay
AssigneesMatsushita Electric Works, Ltd., Hans Sauer
InventorsHans Sauer, Humihiro Kasano, Yoichi Isobe
Life of this patent
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Abstract
A polarized reed relay comprises a bobbin with a coil wound thereon, two ferromagnetic contact reeds extending through an interior passage of the bobbin, a permanent magnet, and two pairs of pole shoes. Each contact reed is fixed at one end and has its other, free end cooperating with fixed contact portions formed by a pair of pole shoes. A relay is thus provided in which two double-throw contact systems electrically insulated from each other may be operated absolutely synchronously.
Claims17
A polarized reed relay comprising
- (a) a bobbin having at least one coil wound thereon,
- (b) two ferromagnetic contact reeds extending substantially along the coil axis through an interior passage provided in the bobbin, each reed being fixed at one of its ends to the bobbin,
- (c) at least one permanent magnet, and
- (d) two pairs of pole shoes positioned in the bobbin, each pole shoe having a first portion disposed in proximity to a pole of the magnet and a second portion forming a fixed contact, each pair of fixed contacts cooperating with the free end of one of the reeds to form a double-throw contact system.
1 more element
Dependencies are inferred from the claim text.