Patent ID: 9698646
Date: 2017-07-04
CPC Classifications: H02K

Claim:
1. A rotating electrical machine, characterized by comprising: a case formed of a front bracket and a rear bracket; a rotor installed inside the case and having a field winding; a stator installed inside the case and having a stator winding; a control portion including a field circuit portion used to supply a current to a control circuit and the field winding; a power circuit portion controlling a stator current flowed to the stator winding; a heat sink installed so as to cool the control portion and the power circuit portion; a first waterproof portion providing waterproofing to signal terminals of the power circuit portion and the field circuit portion; a second waterproof portion provided with through-holes from which a part of the control portion and a part of the power circuit portion is exposed, and providing waterproofing between the control portion as well as the power circuit portion and the heat sink; and insulation portions installed in the through-holes of the second waterproof portion and isolating the control portion and the power circuit portion from the heat sink, wherein both the control portion and the power circuit portion are located between the first waterproof portion and the second waterproof portion in an axial direction of the rotor.