A magnetic moment controllable permanent magnetic field source device

By controlling the angle between permanent magnets and utilizing a rotary power device and a mechanical transmission system, the magnetic moment of the permanent magnet magnetic field source is controllable and energy consumption is low, solving the problem of high energy consumption in existing technologies and providing a magnetic field source device with high engineering application value.

CN110993249BActive Publication Date: 2026-07-07750 TEST SITE OF CHINA SHIPBUILDING IND CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
750 TEST SITE OF CHINA SHIPBUILDING IND CORP
Filing Date
2019-12-25
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing electromagnetic magnetic field sources have high energy consumption, while permanent magnet magnetic field sources have uncontrollable magnetic moments, are inconvenient to use, and pose safety hazards. There is a lack of low-power magnetic field source devices with controllable magnetic moments.

Method used

A permanent magnet magnetic field source device with controllable magnetic moment was designed. The angle between the first and second permanent magnets is controlled by a rotary power device. The magnetic moment can be controlled and adjusted by a stepper motor and a transmission system. Combined with mechanical transmission, the magnetic field strength can be changed with minimal electrical energy consumption.

Benefits of technology

It achieves controllable magnetic moment of permanent magnet magnetic field source, combines the low energy consumption advantage of electromagnetic magnetic field source, avoids the disadvantages of both, and has high engineering application value.

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Abstract

The application discloses a kind of permanent magnet magnetic field source devices of controllable magnetic moment, including base and rotating power device installed on base, it is characterized in that, rotating power device transmission connection is connected to the rotating seat installed on base, first permanent magnet and second permanent magnet are respectively installed on the two sides of rotating seat by transmission rotating shaft, rotating seat can be driven control first permanent magnet and second permanent magnet rotate around transmission rotating shaft under the operation of rotating power device, to change the included angle size between them;It is composed of a pair of semi-ring permanent magnet and peripheral mechanical rotating device, the size of permanent magnet magnetic circuit air gap can be adjusted using mechanical rotating device, so as to achieve the purpose that external magnetic moment size is adjusted by adjusting device.The permanent magnet magnetic field source device of controllable magnetic moment designed in the application combines the advantages of low energy consumption of permanent magnet magnetic field source and controllable magnetic moment of electromagnetic magnetic field source, and is suitable for use on energy-limited platform.
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