Magnetic actuator

WO2026130756A1PCT designated stage Publication Date: 2026-06-25SOCOMEC SPA
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SOCOMEC SPA
Filing Date
2025-07-16
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing magnetic actuators require significant energy consumption to disengage, which is inefficient, especially for bistable actuators that need to maintain two stable positions without external energy input.

Method used

A magnetic actuator design with a movable section that can transition between closed and open positions, reducing the magnetic holding force when open, and utilizing a return mechanism and permanent magnets to maintain stability without external energy, allowing for energy-efficient disengagement.

Benefits of technology

The actuator achieves energy-efficient disengagement by reducing the magnetic holding force when transitioning positions, minimizing energy consumption and enabling stable states without continuous power input.

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Abstract

The invention relates to a magnetic actuator (1) which includes: - a magnetic core (2); - a control coil (4); and - a casing (5) which is configured to form, together with at least the magnetic core (2), at least one magnetic circuit (6). This magnetic actuator (1) is characterised in that the casing (5) includes a movable section (7) that can be placed: - either in the closed position, in which the magnetic flux generated by the control coil (4) can be controlled to control the position of the magnetic core (2); - or in the open position, in which the magnetic core (2) is attracted and held in one of its end positions. The invention also relates to a method for disengaging a magnetic actuator (1) according to the invention, and to an electrical cut-off device (12) incorporating a magnetic actuator (1) according to the invention.
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