Abstract: An electric blower includes a motor having a stator on which field windings are wound, a rotor facing the stator, and a bracket covering the stator and the rotor. The electric blower further includes a fan mounted to a shaft coupled to the rotor, and an air guide having a diffuser provided to the outer circumference of the fan and formed of a plurality of stationary blades adjacent to each other. The electric blower still includes a fan case having openings at its outer circumference for discharging a part of the air having passed the diffuser to the outside, and protrusions having a brim for covering a part of the openings. The foregoing structure allows the air blower to cool the motor with airflow generated by the fan.

Abstract: An electric blower includes a motor having a stator on which field windings are wound, a rotor facing the stator, and a bracket covering the stator and the rotor. The electric blower further includes a fan mounted to a shaft coupled to the rotor, and an air guide having a diffuser provided to the outer circumference of the fan and formed of a plurality of stationary blades adjacent to each other. The electric blower still includes a fan case having openings at its outer circumference for discharging a part of the air having passed the diffuser to the outside, and protrusions having a brim for covering a part of the openings. The foregoing structure allows the air blower to cool the motor with airflow generated by the fan.

Abstract: A DC commutator motor that is driven by a direct current power source obtained by rectifying an alternating current power source includes a plus-side brush made of material having a high resistivity and a minus-side brush made of material having a low resistivity. A capacitor is inserted in and connected parallel to the direct current power source. The commutator motor makes use of specials tubes having different shapes to avoid an incorrect insertion of one of the specials tubes into the insertion hole designed to receive the other of the specials tubes.

Abstract: A DC commutator motor that is driven by a direct current power source obtained by rectifying an alternating current power source includes a plus-side brush made of material having a high resistivity and a minus-side brush made of material having a low resistivity. A capacitor is inserted in and connected parallel to the direct current power source. The commutator motor makes use of specials tubes having different shapes to avoid an incorrect insertion of one of the specials tubes into the insertion hole designed to receive the other of the specials tubes.

Abstract: A DC commutator motor that is driven by a direct current power source obtained by rectifying an alternating current power source includes a plus-side brush made of material having a high resistivity and a minus-side brush made of material having a low resistivity. A capacitor is inserted in and connected parallel to the direct current power source. The commutator motor makes use of specials tubes having different shapes to avoid an incorrect insertion of one of the specials tubes into the insertion hole designed to receive the other of the specials tubes.

Abstract: An electric motor assembly includes a hollow cylindrical casing having a stator disposed inside and adjacent an inner periphery thereof. A rotor is positioned inside the stator and has an output shaft. A bracket made of a thermosetting resin is mounted in one end of the cylindrical casing with a driven member positioned externally of the cylindrical casing and drivingly coupled with the output shaft for rotation about the output shaft. A bearing is mounted externally on the bracket for rotatably supporting the driven member.