An external rotor motor
By introducing a planetary gear mechanism into the motor and connecting the motor's output shaft to the planetary gears, power can be transmitted to the gear ring, solving the problem of insufficient low-speed torque in existing motors and improving the low-speed stability and torque of the external rotating motor.
CN224385259UActive Publication Date: 2026-06-19SHENZHEN FUTAICHANG ELECTRONIC TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FUTAICHANG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
When the existing motor is built into and drives the drum, there are problems with insufficient low-speed torque and insufficient low-speed stability.
Method used
It adopts an external rotor motor structure with an internal planetary gear mechanism. The motor is an internal rotor motor, and the output shaft is connected to the sun gear of the planetary gear mechanism. Power is transmitted to the gear ring through the planetary gears. The meshing of small-tooth and large-tooth gears achieves speed reduction and torque increase.
Benefits of technology
It improves the torque and stability of the external motor at low speeds, and enhances the reliability of low-speed operation.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224385259U_ABST
Abstract
This utility model discloses an external rotary motor, which includes a motor, a planetary gear mechanism, and an output sleeve. The planetary gear mechanism includes a sun gear, several planetary gears, a planet carrier, and a ring gear. The planetary gears are mounted on the planet carrier, the sun gear is positioned in the middle of the planetary gears and meshes with them, and the ring gear is sleeved around the planetary gears and meshes with them. The motor is connected to the planet carrier, and the motor's output shaft is driven by the sun gear. The output sleeve is driven by the ring gear and is used to output power externally. The rotational motion output by the motor is transmitted to the planetary gear mechanism, where it is reduced in speed and increased in torque, thus increasing the torque of the external rotary motor. This results in greater torque at low speeds and better low-speed stability.
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