Rotor for motor, and motor

A rotor for a motor, the rotor comprising:

• a rotor core made of a plurality of steel plates stacked on top of each other in a direction of an axis of a rotating shaft, having a circular pillar shape centered around the axis, and being provided with a plurality of magnet insertion grooves arranged in a circumferential direction of the rotor and penetrating through the circular pillar shape in the direction of the axis;
• permanent magnets respectively inserted into the magnet insertion grooves;
• a pair of end plates respectively stacked on opposite end surfaces of the rotor core in the direction of the axis and closing the magnet insertion grooves;
• and
• a pressing portion restraining the permanent magnet in the direction of the axis by pressing the permanent magnet in the direction of the axis,
• the pressing portion being a part of the end plate, having elasticity, and pressing the permanent magnet in the direction of the axis as a result of the elasticity,
• the pressing portion having a contact surface that is oriented toward the permanent magnet, is inclined in a direction moving away from the axis, and comes into contact with the permanent magnet,
• the permanent magnet having a contact receiving surface that is oriented toward the pressing portion, is inclined in a direction approaching the axis, and comes into contact with the contact surface, and
• the contact receiving surface having a shape that corresponds to a shape of the contact surface such that the contact surface and the contact receiving surface are in surface contact with each other.