A heat-dissipating outer rotor motor
By setting an arc-shaped mating surface and a toothed heat dissipation structure at the inner diameter of the stator core of the external rotor motor, and installing centrifugal fan blades on the rotor to form an airflow heat dissipation channel, the problem of insufficient heat dissipation of the external rotor motor is solved, and the motor achieves efficient heat dissipation and high power density.
CN224555389UActive Publication Date: 2026-07-24SHAANXI YIMAI POWER TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI YIMAI POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-24
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Figure CN224555389U_ABST
Abstract
The utility model provides a kind of heat dissipation outer rotor motor, including stator core, the non-matching surface of arc-shaped matching surface and toothed heat dissipation structure is equipped in stator core inner diameter, still include rotor body and the centrifugal fan blade of setting in its axial end, the utility model is equipped with toothed heat dissipation structure in stator core inner diameter, increase stator core heat dissipation area, while setting centrifugal fan blade on rotor body, so that air flow is generated in rotation process, air flow passes through stator core inner diameter toothed heat dissipation structure surface and carries away more heat, so as to reach in not increasing or slightly increasing material cost, not increasing parts, not increasing assembly process, not increasing weight premise to improve the heat dissipation performance of outer rotor motor to improve the power density of motor, increase motor high power operation time, improve motor life.
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