Invention Grant
- Patent Title: Method for controlling electromagnetic relay
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Application No.: US16897503Application Date: 2020-06-10
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Publication No.: US11335527B2Publication Date: 2022-05-17
- Inventor: Masato Morimura
- Applicant: FUJITSU COMPONENT LIMITED
- Applicant Address: JP Tokyo
- Assignee: FUJITSU COMPONENT LIMITED
- Current Assignee: FUJITSU COMPONENT LIMITED
- Current Assignee Address: JP Tokyo
- Agency: IPUSA, PLLC
- Priority: JPJP2017-076141 20170406
- Main IPC: H01H51/22
- IPC: H01H51/22 ; H01H50/18 ; H01H50/02 ; H01H50/14 ; H01H50/36 ; H01H50/44 ; H01H50/56

Abstract:
A method is for controlling an electromagnetic relay comprising a fixed contact, a movable contact that comes in contact with and separated from the fixed contact, an electromagnet that includes a coil for generating magnetic field, and an actuator that moves the movable contact. The method includes: when separating the movable contact that is in contact with the fixed contact, supplying a first current to the coil to generate a first magnetomotive force that drives the actuator in a direction to move the movable contact toward the fixed contact, supplying a second current to the coil, while the first current is supplied to the coil, to generate a second magnetomotive force that drives the actuator in a direction to move the movable contact away from the fixed contact, and stop supplying the first current while the second current is supplied to the coil.
Public/Granted literature
- US20200303147A1 METHOD FOR CONTROLLING ELECTROMAGNETIC RELAY Public/Granted day:2020-09-24
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