Electric blower

An electric blower configured to blow an air, the electric blower comprising:

• a fan configured to generate an airflow by rotating about a rotational axis;
• an electric motor configured to rotate the fan;
• a motor holder holding the electric motor;
• and
• a fan casing housing the fan and including a facing wall that faces an air suction opening and that defines an insertion hole, an air being introduced into the fan through the air suction opening, a part of the motor holder being inserted into the insertion hole, wherein
• the motor holder includes:
• a motor housing that has a tubular shape and houses the electric motor;
• and
• an extending portion that has an annular shape, surrounds the motor housing, and overlaps with the facing wall in an axial direction along the rotational axis,
• the facing wall and the extending portion include a plurality of attachment portions that connect the motor holder to the fan casing in a state where the motor housing is inserted into the insertion hole, the plurality of attachment portions being arranged in a circumferential direction of the motor housing at predetermined intervals,
• the facing wall and the extending portion include a plurality of non-attachment portions between the plurality of attachment portions in the circumferential direction,
• either one of the facing portion and the extending portion includes an annular protrusion that protrudes toward the other of the facing portion and the extending portion,
• the other of the facing portion and the extending portion includes an annular fitting recess into which the annular protrusion is fit when the motor holder is connected to the fan casing,
• a contacting load is defined by a load applied to the annular protrusion and the annular fitting recess in the axial direction or an intersecting direction intersecting the axial direction in a state where the motor holder is connected to the fan casing by the plurality of attachment portions, and
• the annular protrusion and the annular fitting recess are configured such that at least one of the plurality of non-attachment portions receives the contacting load that is greater than the contacting load applied to each of the plurality of attachment portions.