Frameless motor test tool

By designing limiting components and auxiliary mechanisms to rigidly support the motor rotor and stator, the problems of disassembly damage and high-speed rotation instability in frameless motor testing are solved, thereby improving the stability and accuracy of motor testing.

CN224176579UActive Publication Date: 2026-04-28MINGZHI ELECTRIC APPLIANCE (CHANGZHOU) CO LTD
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Patent Information

Application Number
CN202520864149.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-28
Estimated Expiration
2035-04-30

AI Technical Summary

Technical Problem

Existing frameless motor testing fixtures are prone to damage to the motor and fixtures during disassembly, and lack internal support during high-speed rotation, resulting in inaccurate test results.

Method used

A frameless motor testing fixture was designed, which uses limiting components and auxiliary mechanisms to rigidly support and stabilize the motor rotor and stator through multiple support plates and auxiliary rollers, thereby reducing the impact of centrifugal force and vibration.

Benefits of technology

This improved the stability and accuracy of the motor during testing, avoided damage during disassembly, and enhanced the reusability of the testing fixture and the accuracy of the test results.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a frameless motor testing tool, and particularly relates to the technical field of motor testing, which comprises a base, the top end of the base is fixedly connected with a support frame, the front side of the support frame is provided with a motor stator, the inner side of the motor stator is provided with a motor rotor, the front side of the support frame is provided with a limiting assembly, and an auxiliary mechanism is arranged above the base; the limiting assembly comprises a fixed column, a plurality of first guide grooves are formed in the fixed column, guide columns are slidably connected into the first guide grooves, one ends of the guide columns are fixedly connected with movable columns, and threaded rods are in threaded connection with the interiors of the movable columns. According to the utility model, by arranging the limiting assembly and the auxiliary mechanism, a rigid supporting structure can be formed on the inner side of the motor rotor, displacement caused by centrifugal force or torque fluctuation in the testing process is reduced, and the motor rotor can be kept stable in the testing process; and meanwhile, centrifugal force or vibration generated by uneven mass distribution of the motor stator during high-speed rotation can be reduced, so that the test precision is improved.
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