Magnetic mechanical switch mechanism

The magnetomechanical switch mechanism addresses the limitations of conventional switches by enabling orientation-independent detection in low-gravity environments with a simplified design for long-term operation.

JP2026116646APending Publication Date: 2026-07-10NEXT INNOVATION
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
NEXT INNOVATION
Filing Date
2025-03-28
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Conventional proximity switches and magnetic sensor devices require standby power, are susceptible to external magnetic fields and temperature changes, have complex circuit configurations, and are limited to detecting objects moving vertically due to gravity, restricting their use in orientations other than vertically upward to downward.

Method used

A magnetomechanical switch mechanism using a magnetic body, biasing member, movable magnet, and magnetic sensor that operates without complex circuits, allowing detection in any orientation, including low-gravity environments, with a reed switch and magnet guide section guiding the movable magnet.

Benefits of technology

Enables detection of object proximity in any orientation without complex circuits, power-efficient, and suitable for long-term operation in low-gravity fields like outer space, with reduced susceptibility to external factors.

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Abstract

To provide a magnetomechanical switch mechanism that can detect the proximity of an object in any orientation, even in low-gravity or weightless environments like outer space, without requiring a complex circuit configuration, resulting in low cost, low power consumption, and long-term operation. [Solution] The magnetomechanical switch mechanism comprises a biasing member 36 that biases a magnetic body 38 in a first direction, a movable magnet 24 that is attracted to the magnetic body which is pushed in a second direction against the biasing force of the biasing member and moved, and is held in the first position, a normally open magnetic sensor 25d disposed at a second position in the second direction, a fixed magnet 18 disposed at a third position between the first and second positions and which generates a magnetic repulsion force with the movable magnet, and a magnet guide part 22c that guides the movable magnet, wherein the magnetic body of the movable magnet is displaced in the first direction by the biasing force of the biasing member, causing the magnetic sensor to close the electronic circuit.
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