Motor, actuator, and manufacturing method of rotor provided at motor

An actuator comprising a motor, the motor including:

• a rotor configured to rotate with a shaft;
• the rotor including a plurality of yoke portions, and a plurality of holding portions each corresponding to a space portion provided between the adjacent yoke portions and configured to hold therein a magnet;
• at least one of the plurality of yoke portions including a tab portion extending towards the holding portion and configured to hold the magnet held in the holding portion;
• and
• the holding portion including an insertion space provided between a first end portion of the yoke portion in an axial direction of the shaft and the tab portion, the insertion space allowing the magnet to be inserted, from a position radially outward of the rotor, into the insertion space towards an inner side in a radial direction of the shaft.

A manufacturing method of a rotor configured to be provided at a motor and rotate with a shaft, the manufacturing method comprising:

• a magnetizing process of magnetizing magnetic material and generating magnet;
• an attaching process of attaching the magnet to the rotor;
• the rotor including a plurality of yoke portions, and a plurality of holding portions each corresponding to a space portion provided between the adjacent yoke portions and configured to hold therein the magnet;
• at least one of the yoke portions including a tab portion extending towards the holding portion and configured to hold the magnet held in the holding portion;
• the holding portion including an insertion space provided between a first end portion of the yoke portion in an axial direction of the shaft and the tab portion, the insertion space allowing the magnet to be inserted into the insertion space towards an inner side in a radial direction of the shaft;
• and
• the attaching process including a first process of inserting the magnet, from a position radially outward of the rotor, into the insertion space towards an inner side in the radial direction and a second process of inserting the magnet in the axial direction after the first process.