Stator, motor, fan, air conditioner, and method for manufacturing stator

A stator comprising:

• a first core that includes a first tooth extending in a first radial direction and a first core back extending in a circumferential direction;
• and
• a second core that includes a second tooth extending in a second radial direction and a second core back extending in the circumferential direction and connects with the first core, wherein
• the first core back includes:
• a depression formed with at least a first face and a second face in an outer peripheral surface of the first core back;
• and
• a connection part facing the second core back,
• the stator satisfies θ1<θ2 and α1≤θ1<90 degrees where
• θ1 represents an angle between the first face and the first radial direction in a plane perpendicular to an axial direction,
• θ2 represents an angle between the second face and the first radial direction in the plane, and
• α1 (degrees) represents an angle between the connection part and the first radial direction in the plane, and
• the second face of the depression is formed at a position where a straight line passes through a center of the first tooth in the first radial direction in the plane.