Magnetic control speed regulation button for medical electric tool

By changing the magnet and Hall components to be arranged in parallel, the problem of the reduction in sensitivity of the magnet control buttons for medical power tools after high temperature disinfection is solved, achieving a more uniform speed regulation effect and a simpler rework process.

CN222690555UActive Publication Date: 2025-03-28SHANGHAI SCHNEIKANG TECH DEV CO LTD
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Patent Information

Application Number
CN202420656062.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2025-03-28
Estimated Expiration
2034-04-01

AI Technical Summary

Technical Problem

The sensitivity of the magnetron buttons on medical power tools decreases after high temperature disinfection, slow reaction, increase the button empty space, and it is difficult to match and adjust the magnetic material during rework.

Method used

A magnetic speed control button for medical power tool was designed, and the magnet and the Hall element were arranged parallel to each other. The magnet was only affected by the direction of the magnetic line, which weakened the influence of the magnetic field strength on the Hall element.

Benefits of technology

The sensitivity of the magnetron button is maintained stable after high-temperature disinfection, and the speed adjustment amplitude is more uniform, reducing the problems caused by magnet magnetic decay, and simplifying the debugging of magnets during rework.

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Abstract

The utility model discloses a magnetic control speed regulation button of a medical electric tool, and belongs to the field of medical electric tools. According to the utility model, the installation positions of the magnet and the Hall element and the direction of relative displacement in actual use are modified, and the Hall element is changed from the original influence of magnetic field intensity and magnetic line direction to a parallel structure which is only influenced by the magnetic line direction. The magnetic control button can control speed regulation in a target range, the speed regulation amplitude is more uniform, meanwhile, many problems caused by magnetic recession of a magnet after high-temperature disinfection of a medical tool are solved, the magnetic control button is more suitable for being used in the medical industry which may cause magnet demagnetization, and when the magnet is repaired and replaced, the magnetic control button is more convenient to operate, and the service life of the magnetic control button is prolonged. And the replacement magnet can be debugged to the degree meeting the use condition more easily.
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