Electromagnetic actuator

The electromagnetic actuator design addresses the issues of component complexity and cost in conventional actuators by using a simplified structure with a connector member and offset central axis, achieving reduced parts, lower assembly time, and standard electrical connections while maintaining airtightness.

JP2026063989APending Publication Date: 2026-04-13MIKUNI CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
MIKUNI CORP
Filing Date
2024-10-01
Publication Date
2026-04-13

AI Technical Summary

Technical Problem

Conventional electromagnetic actuators for gas appliance safety devices require multiple components, increased assembly time, and dedicated connectors, leading to higher costs and reduced versatility due to the need for intermediate parts and thicker connector pins.

Method used

An electromagnetic actuator design featuring a movable core, fixed core, coil, cylindrical case, biasing spring, and holder with a recess for a connector member, utilizing a connector member formed from a cylindrical portion and connector post with offset central axis, and a seal member between the connector member and holder to ensure airtightness without dedicated connectors.

Benefits of technology

Reduces the number of components and assembly time, lowers costs, and allows for standard electrical connections, ensuring airtightness and versatility by eliminating intermediate parts and dedicated connectors.

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Abstract

The objective is to provide an electromagnetic actuator that solves the problems of conventional technology, ensures sufficient external airtightness, has a small number of components and labor costs, is low-cost, and does not require a dedicated connector for electrical connection. [Solution] An electromagnetic actuator having a movable core 30, a fixed core 60, a coil 80 arranged around the fixed core, a cylindrical case 10 that slidably holds the movable core and houses the fixed core and the coil, a biasing spring 40 that biases the movable core in a direction away from the fixed core, and a holder 20 that is detachably configured with the cylindrical case and holds the fixed core in place, wherein the holder has a recess for holding a connector member 110 on the side opposite to the side where the fixed core is held, and a first terminal 81 extending from the coil passes through the holder and the connector member held in the recess of the holder, forming a connector pin of the connector member.
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Citation Information

Patent Citations

  • Safety apparatus for gas instrument

    JP2000018591A

  • Electromagnetic actuator

    JP2014075962A

  • Gas safety valve adapted for consumer electronics

    JP2019178777A