US 11,799,412 B2
Motor
Kouhei Takahashi, Kariya (JP); and Yoshinobu Nagao, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Appl. No. 17/265,380
Filed by DENSO CORPORATION, Kariya (JP)
PCT Filed Jul. 22, 2019, PCT No. PCT/JP2019/028612
§ 371(c)(1), (2) Date Feb. 2, 2021,
PCT Pub. No. WO2020/026869, PCT Pub. Date Feb. 6, 2020.
Claims priority of application No. 2018-146596 (JP), filed on Aug. 3, 2018.
Prior Publication US 2021/0313919 A1, Oct. 7, 2021
Int. Cl. H02P 27/06 (2006.01); H02P 29/024 (2016.01); H02P 29/50 (2016.01); F04D 13/06 (2006.01); F04D 29/40 (2006.01)
CPC H02P 29/027 (2013.01) [F04D 13/06 (2013.01); F04D 29/406 (2013.01); H02P 29/50 (2016.02); H02P 2209/01 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A motor comprising:
a stator including a plurality of windings that form coils and are connected together at a neutral point;
a switching circuit that generates a rotating magnetic field around the stator by switching of a power supply to the plurality of windings;
a rotor that rotates in response to the rotating magnetic field generated around the stator;
a resistor for current detection that detects a current in the switching circuit and that is disposed between the switching circuit and a grounding point; and
a filter element that reduces a fluctuation in potential at the neutral point, the filter element being disposed between the neutral point and the resistor for current detection and being grounded at the grounding point via the resistor for current detection.