Patent · US Expired

Ac generator having built-in voltage regulator

US7339296B2 · kind B2 · utility

1Cited by
11References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 17, 2004
Grant dateMar 4, 2008
Priority date
Expiry dateDec 8, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02K11/05
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An ac generator for a vehicle includes a rotor having a field coil, a stator having a stator winding disposed around the rotor to provide ac power in cooperation with the rotor, a brush unit disposed near a rotation axis of the rotor, and a voltage regulator for controlling output voltage of the ac power. The voltage regulator has a regulator circuit section and a heat sink for dissipating heat generated by the regulator circuit section. The heat sink has a plurality of axially projecting cooling fins that extends in a circumferential direction of the rotor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.