External rotor motor housing with fan blades
CN224438734UActive Publication Date: 2026-06-30ZHEJIANG JINGDA MOTOR CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINGDA MOTOR CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Existing external rotor motors require a separate fan for heat dissipation, which increases the overall size and cost.
Method used
It adopts a shell with fan blades, with heat dissipation holes evenly distributed on the shell and internal guide vanes. The guide vanes are integrally formed with the shell, and the heat dissipation holes have a gradient structure. The bushing is interference-fitted with the motor shaft, eliminating the need for a separate fan.
Benefits of technology
It improves heat dissipation efficiency, reduces costs, has a stable and reliable structure, and avoids the need for a separate fan.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224438734U_ABST
Abstract
This utility model discloses a fan-equipped housing for an external rotor motor, comprising a housing for embedding a permanent magnet, and heat dissipation holes evenly distributed on the end face of the housing. Guide vanes are provided within the heat dissipation holes and extend inwards towards the housing. This utility model features a novel structure, high heat dissipation efficiency, and eliminates the need for a separate fan for the motor shaft, thus reducing costs.
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