Motor
First Claim
1. An electrically powered motor for assisting vehicular driving operations, the motor comprising:
- a stator section including a stator core including a plurality of stator teeth, the stator core having a first alignment feature;
a sensor mounting member having a second alignment feature;
a rotor section having a field magnet arranged to generate, between itself and said stator core, torque that centers on a predetermined center axis; and
a bearing mechanism, centered on the center axis, arranged to rotatably support said rotor section with respect to said stator section;
whereinsaid stator section includes a sensor arranged to detect a position of the field magnet, the sensor arranged in the sensor mounting member;
said sensor mounting member is fixed indirectly to said stator core; and
the first alignment feature is directly aligned with the second alignment feature such that the sensor is directly aligned with the stator core.
1 Assignment
0 Petitions
Accused Products
Abstract
A motor stator section (3a) is furnished with a busbar (51) attached to an armature (3), and with a circuit board (52) attached to the busbar (51). A parts accommodation recess (516) is formed in the busbar (51) surface that opposes the circuit board (52), and a holding recess (512), in which is anchored a sensor holder (54) that retains Hall sensors (53) mounted on the circuit board (52) is formed in the busbar (51) inner circumferential surface. Further, grooves are formed in the circuit board (52), the sensor holder (54), and the busbar (51), wherein fitting a jig (9) to these grooves enables high-precision assembly of these components.
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Citations
13 Claims
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1. An electrically powered motor for assisting vehicular driving operations, the motor comprising:
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a stator section including a stator core including a plurality of stator teeth, the stator core having a first alignment feature; a sensor mounting member having a second alignment feature; a rotor section having a field magnet arranged to generate, between itself and said stator core, torque that centers on a predetermined center axis; and a bearing mechanism, centered on the center axis, arranged to rotatably support said rotor section with respect to said stator section;
whereinsaid stator section includes a sensor arranged to detect a position of the field magnet, the sensor arranged in the sensor mounting member; said sensor mounting member is fixed indirectly to said stator core; and the first alignment feature is directly aligned with the second alignment feature such that the sensor is directly aligned with the stator core. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13)
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12. An electrically powered motor for assisting vehicular driving operations, the motor comprising:
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a stator section including a stator core having a first alignment feature in which a jig seats, a sensor mounting member having a second alignment feature in which the jig seats, and a sensor fixed to the sensor mounting member; a rotor section having a field magnet arranged to generate, between itself and the stator core, torque that centers on a predetermined center axis; a bearing mechanism, centered on the center axis, arranged to rotatably support the rotor section with respect to the stator section; and a busbar member arranged between the sensor mounting member and the stator core;
whereinthe sensor is arranged to detect a position of the field magnet; the sensor mounting member is mounted to the busbar member; the busbar member is mounted to the stator core; and the first alignment feature is directly aligned with the second alignment feature when the jig is seated in the first alignment feature and the second alignment feature.
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Specification