US 11,670,991 B2
Electric driving apparatus
Saki Shimada, Tokyo (JP); Isao Sonoda, Tokyo (JP); Hideya Nishikawa, Tokyo (JP); and Satoru Akutsu, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 16/634,272
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Aug. 23, 2017, PCT No. PCT/JP2017/030093
§ 371(c)(1), (2) Date Jan. 27, 2020,
PCT Pub. No. WO2019/038849, PCT Pub. Date Feb. 28, 2019.
Prior Publication US 2020/0177060 A1, Jun. 4, 2020
Int. Cl. H02K 11/215 (2016.01); H02K 5/04 (2006.01); B62D 5/04 (2006.01)
CPC H02K 11/215 (2016.01) [H02K 5/04 (2013.01); B62D 5/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An electric driving apparatus comprising:
a shaft;
a motor that rotates the shaft;
a controlling apparatus that controls the motor, the controlling apparatus being disposed so as to be separated from the motor in an axial direction of the shaft;
a first rotational angle detecting sensor that generates a signal that corresponds to rotation of the shaft, the first rotational angle detecting sensor being disposed between the controlling apparatus and the motor;
a housing that accommodates the motor, the controlling apparatus, and the first rotational angle detecting sensor together; and
a resolver that generates a signal that corresponds to rotation of the shaft, the resolver being disposed at a position that is further away from the motor than the controlling apparatus in the axial direction of the shaft, and being disposed outside the housing,
wherein:
the first rotational angle detecting sensor is a magnetic detecting element sensor that comprises:
a magnet rotating body that includes a magnet, and that rotates together with the shaft; and
a magnetic detecting element that detects magnetism from the magnet;
wherein:
the housing comprises:
a case on which an opening portion is disposed; and
a cover that covers the opening portion;
the motor is accommodated inside the case;
the controlling apparatus is accommodated inside the cover; and
the opening portion is closed by a partitioning wall that is disposed between the motor and the controlling apparatus,
an inner circumferential portion of the partitioning wall is formed into a sensor position plate portion that partitions a space between the magnet rotating body and the magnetic detecting element, and
a thickness of the sensor position plate portion is thinner than a thickness of the partitioning wall in portions other than the sensor position plate portion, wherein:
the magnet rotating body further includes a magnet holder to which the magnet is fixed on a side facing the inner circumferential portion of the partitioning wall,
the inner circumferential portion is formed in an L-shape, and
the magnet holder is formed in an L-shape which follows the L-shape of the inner circumferential portion.