Rotary electric machine
AssigneeDenso Corporation
InventorsHiroyuki Tsuchiya, Shinichi Okada, Shinji Koda, Akito Tamura, Yuki Mawatari
Life of this patent
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Abstract
A rotary electric machine includes a rotor including a plurality of magnetic poles, a stator including a multi-phase stator winding, a power line that supplies power to the stator winding, and a rotation sensor that detects a rotational position of the rotor. The stator and the rotor face each other on the inner side and the outer side in the radial direction. The power line and a signal line that extends from the rotation sensor are provided so as to extend in the axial direction. Blocking portions that block an electromagnetic field generated by the power line are each interposed between the power line and the signal line.
Claims12
A rotary electric machine comprising:
- a rotor including a plurality of magnetic poles;
- a stator including a stator winding that is multi-phase;
- a stator holder in a cylindrical shape and assembled inside the stator in a radial direction;
- a power line configured to supply power to the stator winding;
- and
- a rotation sensor configured to detect a rotational position of the rotor, wherein
- the stator and the rotor face each other in the radial direction,
- the power line and a signal line, which extends from the rotation sensor, extend in an axial direction,
- a blocking portion is interposed between the power line and the signal line and configured to block an electromagnetic field generated by the power line,
- the rotary electric machine is an outer-rotor type rotary electric machine including the rotor outside the stator in the radial direction,
- the stator holder includes a hollow portion and a protrusion in the hollow portion,
- the protrusion is provided as a fixing portion and protrudes inward in the radial direction for fixing the rotation sensor, and
- the protrusion is the blocking portion.
Dependencies are inferred from the claim text.