Motor and method of manufacturing the same
AssigneeNidec Corporation
InventorsHiroshi Sambuichi, Kosuke Ogawa, Takashi Hattori
Life of this patent
Estimating the term…
Abstract
A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.
Claims19
A motor, comprising:
- a rotor having a shaft which has its center on a center axis extending in one direction;
- a stator which surrounds the rotor in the axial circumference, and has a plurality of coils;
- and
- bus bars connecting coil ends extending from the coils,
- wherein the bus bars are formed of a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor, and
- each of the bus bars has a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction,
- a bus bar holder which supports the bus bar,
- the main body portion of the bus bar is supported by being sandwiched between a pair of bus bar fixing pieces of the bus bar holder in a thickness direction,
- the bus bar holder has an axially penetrating notch to which the coil end is inserted, and
- when viewed from the axial direction, the notch overlaps with the coil end connection portion of the bus bar, and the opening of the notch is open toward the same direction as the opening of the coil connection portion.
A motor, comprising:
- a rotor having a shaft which has its center on a center axis extending in one direction;
- a stator which surrounds the rotor in the axial circumference, and has a plurality of coils;
- and
- bus bars connecting coil ends extending from the coils,
- wherein the bus bars are formed of a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor, and
- each of the bus bars has a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction,
- a bus bar holder which supports the bus bar,
- the main body portion of the bus bar is supported by being sandwiched between a pair of bus bar fixing pieces of the bus bar holder in a thickness direction,
- wherein the bus bar holder has an axially penetrating through hole to which the coil end is inserted, and
- when viewed from the axial direction, the through hole overlaps with the coil end connection potion of the bus bar.
Dependencies are inferred from the claim text.