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US 10,629,389 B2Granted
Latching relay and method thereof
OwnerPatrick L. McGuireinventor
Life of this patent
Estimating the term…
Abstract
A latching relay may be shown and described. The latching relay may use a reed switch, a permanent magnet and a coil. The permanent magnet may be magnetized by pulsing current through the coil, and demagnetized by degaussing current. Also, the magnetized magnet may maintain an activated state of the reed switch, and the demagnetized magnet may maintain a deactivated state of the reed switch.
Claims19
A latching relay, comprising:
- at least one fixedly placed permanent magnet;
- at least one coil winding around the at least one permanent magnet, wherein the at least one coil is connected to at least one magnetized end cap, and wherein the at least one magnet maintains the same position with respect to the latching relay;
- and
- at least one contact switch provided next to the at least one permanent magnet,
- wherein the at least one permanent magnet is demagnetized by a diminishing, high frequency, alternating degaussing current which is applied to the at least one coil,
- wherein the at least one contact switch is switched to a first state in the absence of a magnetic field when the at least one permanent magnet is demagnetized,
- wherein the at least one permanent magnet is magnetized by a single current pulse, of either polarity, which is applied to the at least one coil, and the at least one contact switch is switched to a second state when the at least one permanent magnet is magnetized.
4 more elements
A method for providing a latching relay, comprising:
- winding at least one coil around at least one fixedly placed permanent magnet, wherein the at least one coil is connected to at least one magnetized end cap, and wherein the at least one magnet maintains the same position with respect to the latching relay;
- providing at least one contact switch next to the at least one permanent magnet,
- magnetizing the at least one permanent magnet by a single pulse current, of either polarity, which is applied to the at least one coil;
- switching the at least one contact switch to a first state in the absence of a magnetic field when the at least one permanent magnet is magnetized;
- demagnetizing the at least one permanent magnet by applying a degaussing current to the at least one coil;
- and
- switching the at least one contact switch to a second state when the at least one permanent magnet is demagnetized.
4 more elements
A latching relay, comprising:
- at least one fixedly placed permanent magnet;
- at least one coil winding around the at least one permanent magnet, wherein the at least one coil is connected to at least one magnetized end cap, and wherein the at least one magnet maintains the same position with respect to the latching relay;
- and
- at least one reed switch provided next to the at least one permanent magnet,
- wherein the at least one permanent magnet is demagnetized by a diminishing, high frequency, alternating degaussing current which is applied to the at least one coil,
- wherein the at least one contact switch is switched to a first state in the absence of a magnetic field when the at least one permanent magnet is demagnetized,
- wherein the at least one permanent magnet is magnetized by a single current pulse, of either polarity, which is applied to the at least one coil, and the at least one contact switch is switched to a second state when the at least one permanent magnet is magnetized.
4 more elements
Dependencies are inferred from the claim text.