Abstract: A stator core is assembled to an inner wall surface of a first motor case through a sealing member covering an outer peripheral surface and both end edge portions in an axial direction of the stator core, which is assembled so that both end edge portions of the sealing member in the axial direction are sandwiched so as be pressed respectively by protruding wall portions provided in a fan case and a motor case so as to face each other.

Abstract: There is provided a blower realizing characteristics in which the pressure is reduced as the flow rate is increased in pressure-flow rate characteristics in a case where an impeller rotates at a fixed rotation speed, while having a simple structure. An impeller includes a main plate formed in a disc shape and a plurality of main blades formed to stand on the main plate, the impeller is extended to a position facing the inside of a discharge flow path formed so as to circle on an outer peripheral side, and auxiliary blades are formed to stand on an extended portion extended inside the discharge flow path.

Abstract: A stator core is assembled to an inner wall surface of a first motor case through a sealing member covering an outer peripheral surface and both end edge portions in an axial direction of the stator core, which is assembled so that both end edge portions of the sealing member in the axial direction are sandwiched so as be pressed respectively by protruding wall portions provided in a fan case and a motor case so as to face each other.

Abstract: There is provided a blower capable of maintaining output performance and adjusting a thrust acting in an axial direction of an impeller while reducing the number of parts. A flow path is formed in an intake port provided in a central part in the axial direction of the first housing and a blowing passage connecting the intake port and the discharge port as top surface portions of a housing-side shroud connecting to the intake port and an impeller-side shroud formed in the impeller which face the blowing passage are adjacent to each other in the radial direction.

Abstract: There is provided a blower realizing characteristics in which the pressure is reduced as the flow rate is increased in pressure-flow rate characteristics in a case where an impeller rotates at a fixed rotation speed, while having a simple structure. An impeller includes a main plate formed in a disc shape and a plurality of main blades formed to stand on the main plate, the impeller is extended to a position facing the inside of a discharge flow path formed so as to circle on an outer peripheral side, and auxiliary blades are formed to stand on an extended portion extended inside the discharge flow path.

Abstract: There is provided a blower capable of maintaining output performance and adjusting a thrust acting in an axial direction of an impeller while reducing the number of parts. A flow path is formed in an intake port provided in a central part in the axial direction of the first housing and a blowing passage connecting the intake port and the discharge port as top surface portions of a housing-side shroud connecting to the intake port and an impeller-side shroud formed in the impeller which face the blowing passage are adjacent to each other in the radial direction.

Abstract: In the sealing structure, coil leads of motor coils are connected to a bottom part of a motor case, a motor-control board, which has a connector to which lead wires are connected, is attached to the bottom part, the motor case has a connector insertion hole, into which the connector is inserted to expose on the outside of the motor case, and a ring-shaped sealing member, which is fitted on an outer circumferential face of the connector, is sandwiched between a motor-control board and the bottom part of the motor case so as to seal the connector insertion hole.