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US 2002/0053841 A1Published application
Automotive alternator
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorYoshihito Asao
Life of this patent
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Abstract
A supporting member is an annular molded resin body integrating a brush holder and a rectifier circuit board. First and second heat sinks mounted with unidirectional conducting component packages constituting a rectifier and a voltage regulator circuit board constituting a voltage regulator are supported by the supporting member. The rectifier and the voltage regulator are mounted by fastening mounting screws that pass through mounting apertures of a mounting portion of the supporting member to a rear bracket.
Claims11
An automotive alternator comprising:
- a shaft rotatably supported by a bracket;
- a rotor fastened to said shaft, said rotor being disposed inside said bracket;
- a stator fastened to said bracket so as to envelop an outer circumference of said rotor;
- a rectifier for rectifying an alternating-current output of said stator, said rectifier being provided with a rectifier heat sink on which a plurality of semiconductor components is disposed and a rectifier circuit board for connecting said plurality of semiconductor components so as to constitute a bridge circuit;
- a voltage regulator for adjusting an output voltage of said rectifier, said voltage regulator being provided with a voltage regulator circuit board on which a voltage regulating circuit is formed and a voltage regulator heat sink on which said voltage regulator circuit board is disposed;
- and
- a cooling means for cooling said rectifier and said voltage regulator,
- wherein said plurality of semiconductor components and said voltage regulator circuit board are supported by a single supporting member and mounted to said bracket.
5 more elements
Dependencies are inferred from the claim text.