A structure suitable for surface-mounted magnet motor

CN224935460UActive Publication Date: 2026-11-03NICHIBO MOTOR SHENZHEN CO LTD
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Patent Information

Application Number
CN202522603107.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-08
Publication Date
2026-11-03
Estimated Expiration
2035-12-08

AI Technical Summary

Technical Problem

Traditional brushless DC micro motors suffer from reduced performance due to the use of a protective magnetic sleeve on the rotor, which occupies motor clearance space. This also increases material and processing costs, making it difficult to meet the requirements for miniaturization and high torque.

Method used

Design a structure suitable for surface-mount magnet motors, in which magnets are installed from top to bottom between the stator positioning ribs of the rotor core to form an uneven air gap, eliminating the protective magnetic sleeve, increasing the rotor outer diameter, reducing materials and processing steps, and using ball bearings to ensure smooth rotation.

Benefits of technology

This results in smoother and more stable motor operation, reduced costs, enhanced motor performance and torque, and meets the requirements for miniaturization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of suitable for surface-mounted magnet motor structure, including iron shell and center pivot, the inside of iron shell is equipped with stator wire holder, the top of stator wire holder is fixedly installed with multiple controller buckle, the top of iron shell inner cavity is installed with mounting disc, the top of mounting disc is insertedly installed with function wire plug, the top of mounting disc is installed with power socket, the outside of center pivot is sleeved and installed with rotor core;By magnet is from top to bottom to the adjacent stator positioning rib between rotor core, magnet outer diameter two sides are straight line cutting edge, to form uneven air gap to the air gap of motor, form uneven air gap between stator wire holder, magnet outer diameter two sides cutting edge, install into motor, the two trapezoidal angles of counter electromotive force trapezoidal wave will transition smooth to make the counter electromotive force waveform of motor positive sine waveform shape, to make motor run more stable, smooth, the design of this kind of magnet structure is conducive to the performance requirement of small noise motor.
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