CROSS REFERENCE TO RELATED APPLICATION

The present application claims priority under 35 U.S.C. § 119 to Japanese Application No. 2019-122058 filed on Jun. 28, 2019, the entire contents of which are hereby incorporated herein by reference.

FIELD OF THE INVENTION

The present disclosure relates to a motor.

BACKGROUND

A conventional motor includes, for example, a stator core, an insulator, coils, a conductive member (conductive pin), and a circuit board. The stator core has an annular core back and a plurality of teeth extending radially outward from the core back and disposed in the circumferential direction. The insulator covers the stator core, and the coil is formed by winding a conductive wire around a tooth via the insulator.

The conductive pin is disposed between adjacent teeth and is accommodated in a through-hole formed in the insulator. The conductive pin is connected to the conductive wire, and the lower end of the conductive pin is connected to the circuit board.

However, in the conventional motor, the space between the adjacent teeth is narrowed by the conductive pin, and there is a possibility that the number of turns of the conductive wire wound around the tooth cannot be increased.

SUMMARY

A motor according to an example embodiment of the present disclosure includes a stationary assembly and a rotary assembly. The rotary assembly includes a shaft that rotates about a central axis extending vertically. The stationary assembly includes an annular stator surrounding the central axis, and a circuit board. The circuit board is below the stator in an axial direction. The stator includes a stator core, an insulator, a coil, and a conductor. The stator core includes an annular core back and teeth. The teeth extend radially outward from the core back and are arranged in a circumferential direction. The insulator covers at least a portion of the stator core. The coil is defined by a conductive wire wound around a tooth via the insulator. The conductor is connected to the conductive wire and is connected to the circuit board. The insulator includes a cylindrical terminal holder located between adjacent teeth, extending in the axial direction, and accommodating the conductor. The core back includes a stator recess located between adjacent teeth and is recessed radially inward from a radially outer surface. The stator recess accommodates at least a portion of the terminal holder.

The above and other elements, features, steps, characteristics and advantages of the present disclosure will become more apparent from the following detailed description of the example embodiments with reference to the attached drawings.

