Motor
AssigneeNidec Corporation
InventorsSatoshi KAJIKAWA, Yusuke MAKINO
Life of this patent
Estimating the term…
Abstract
A motor includes a shaft, a bearing supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, a covered cylindrical rotor connected to the shaft, and a bus bar unit. The armature includes a core back, teeth extending radially outward from the core back portion, an insulator covering surfaces of the teeth, and a coils defined by a wire wound from above the insulator round the teeth. The bus bar unit includes bus bars to which the coils are connected, a bus bar holder holding the bus bars, and a bus bar cover covering portion of the bus bars.
Claims6
1-5. (canceled)
A motor comprising:
- a shaft centered on a center axis oriented in a vertical direction;
- a bearing rotatably supporting the shaft;
- an armature disposed radially outward of the bearing;
- a bracket to which the bearing and the armature are fixed;
- a covered cylindrical rotor connected to the shaft;
- and
- a bus bar unit connecting the armature to an external power supply;
- wherein the armature includes:
- an annular core back;
- a plurality of teeth extending radially outward from the core back;
- an insulator covering surfaces of the plurality of teeth;
- and
- a plurality of coils defined by a conductive wire wound from above the insulator around the plurality of teeth;
- and
- the bus bar unit includes:
- a plurality of bus bars to which the plurality of coils are electrically connected;
- a bus bar holder holding the plurality of bus bars;
- and
- a bus bar cover covering at least a portion of the plurality of bus bars from a lower side.
Dependencies are inferred from the claim text.