External rotor of permanent magnet frequency conversion generator
By designing a connecting sleeve assembly and hollow holes in the external rotor generator, combined with a heat dissipation device and a drive gear ring, the heat dissipation and starting problems of the external rotor generator are solved, improving the generator's heat dissipation performance and starting efficiency.
CN224177988UActive Publication Date: 2026-04-28CHONGQING YUXIN PINGRUI ELECTRONICS
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Patent Information
- Application Number
- CN202520609714.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-28
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Technical Problem
External rotor generators face challenges such as difficult heat dissipation, difficult maintenance, and the need for large torque during startup.
Method used
An external rotor for a permanent magnet variable frequency generator was designed. By setting a connecting sleeve assembly, hollow holes and heat dissipation devices in the rotor housing, the heat dissipation performance is improved, and the starting requirements are reduced by connecting the drive gear ring to the power component.
Benefits of technology
This achieves efficient heat dissipation of the rotor, simplifies the maintenance process, reduces the torque required for starting, and improves the operating efficiency and reliability of the generator.
✦ Generated by Eureka AI based on patent content.
Abstract
An external rotor of a permanent magnet frequency conversion generator relates to the technical field of generator equipment, and improves heat dissipation in a rotor shell and reduces difficulty of rotation driving of the rotor by improving a rotor connecting sleeve and a rotor shell driving structure. According to the scheme, the rotor comprises a rotor shell, permanent magnets are arranged on the periphery of the inner wall of the rotor shell, and a connecting sleeve assembly is arranged at one end of the rotor shell; the connecting sleeve assembly comprises a bottom plate, the edge of the bottom plate is connected with the rotor shell, and a sleeve is arranged in the middle of the bottom plate; a first mounting hole is formed in the middle of the sleeve, a plurality of hollow holes are formed in the circumferential direction of the middle of the connecting bottom plate, and the side, away from the rotor shell, of the bottom plate is used for mounting a heat dissipation device; and a driving gear ring is arranged at the other end of the rotor shell.
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