Patent ID: 11936267
Assignee: NIDEC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 0:
1. A motor comprising:
a rotor which is rotatable around a center axis extending vertically;
a stator which is on a radially inner side of the rotor and opposes the rotor in a radial direction;
a circuit board which is on an axial lower side of the stator; and
a resin portion which covers at least a portion of the stator and the circuit board; wherein
the stator includes:
a stator core which includes teeth extending outward in the radial direction;
a coil which is defined by a conducting wire wound around the teeth; and
a conductive pin which protrudes downward in an axial direction from a lower portion of the stator core and is electrically connected to the conducting wire to electrically connect the coil and the circuit board;

the resin portion includes:
a first resin portion which covers at least two axial ends of the stator core and the coil;
a second resin portion which covers the circuit board; and
a third resin portion which is between the first resin portion and the second resin portion in the axial direction and covers the conductive pin;

at least a portion of an outer peripheral surface of the third resin portion which intersects with an extension line extending from the center axis to the conductive pin is on a radially outer side away from an outermost radial portion of the first resin portion;
at least a portion of the third resin portion overlaps with at least a portion of a lower surface of the rotor in the axial direction;
the third resin portion includes protruding portions on a radially outer side away from the conductive pin and overlapping with the conductive pin in the radial direction; and
the protruding portions are arranged in a circumferential direction, and at least a portion of the outer peripheral surface which intersects with the extension line extending from the center axis to the conductive pin is on an outer side away from a radial outer edge of the first resin portion.