Brushless AC generator for vehicle
US8053939B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2007 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Aug 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K19/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To provide a brushless AC generator for a vehicle, which is capable of improving a cooing performance for an excitation coil and increasing an output of electric power generation with a simple structure.An external fan 11 fixed to a shaft 10 outside the brackets 5 and 6 and an internal fan 34 fixed to a rotor assembled body 21 formed from a first rotor pole 22 and a second rotor pole 23 united into one body, the internal fan 34 having fan blade 34a provided in a valley part 22b between claw poles 22a of the first rotor pole 22, are provided. The external fan 11 and the internal fan 34 are used to generate an air flow for cooling a stator core 3, the rotor assembled body 21, an excitation core 31 and an excitation coil 33.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.