Abstract: A blower apparatus includes a motor including a rotor including a shaft extending along a vertically extending central axis, and a stator opposing the rotor in a radial direction, an impeller below the stator and fixed to the shaft, and a housing surrounding an outer side of the impeller in the radial direction. The impeller includes a base portion that widens in a direction intersecting the central axis, and blades arranged on an upper surface of the base portion along a circumferential direction. An annulus is fixed to an upper end portion of the shaft.

Abstract: A blower apparatus includes a motor including a rotor including a shaft extending along a vertically extending central axis, and a stator opposing the rotor in a radial direction, an impeller below the stator and fixed to the shaft, and a housing surrounding an outer side of the impeller in the radial direction. The impeller includes a base portion that widens in a direction intersecting the central axis, and blades arranged on an upper surface of the base portion along a circumferential direction. An annulus is fixed to an upper end portion of the shaft.

Abstract: A blower includes an impeller, a motor, and a housing. The impeller is able to rotate around a center axis extending vertically. The motor includes a rotor connected to the impeller and a stator facing the rotor in a radial direction. The housing accommodates at least a part of the motor. The housing includes a first housing part, a second housing part, and a rib. The first housing part is disposed on an outer side in the radial direction of the stator and a radial inner surface thereof forms a flow passage. The second housing part is disposed on an inner side in the radial direction of the first housing part. The rib connects the first housing part and the second housing part. A bottom surface of the rib includes a bottom-surface first area that extends downward toward a front side in a rotational direction of the impeller.

Abstract: A motor includes a shaft disposed along a central axis, a rotor fixed to the shaft and capable of rotating around the central axis, a stator outside of the rotor, a first housing including a cylindrical portion and disposed on an outside of the stator, and a second housing disposed on an upper side of the first housing. The second housing includes a top plate and projected portions extending downward and spaced apart. Ribs extending from both end portions of the projected portion in the circumferential direction to an inside in the radial direction as viewed in the axial direction are disposed on a lower surface of the top plate.

Abstract: A motor includes a rotor that includes a shaft disposed along a central axis extending vertically, a stator that faces the rotor in a radial direction, a bearing section that supports the rotor such that the rotor is rotatable with respect to the stator, and a bracket that holds the bearing section. The bracket includes a cylindrical bracket portion that is disposed outwardly of the bearing section in the radial direction, and a bracket bottom portion that includes a bracket opening portion. The bearing section includes a bearing that rotatably supports the shaft, and a plate portion disposed below the bearing and extending in a direction orthogonal to the central axis. At least a portion of the plate portion faces the bracket opening portion in an axial direction.

Abstract: In a pump having a rotor inside a pump chamber which is formed inside a case which is formed of a resin material, and a resin mold compound in which an armature is molded with resin, a metallic cover is provided on a portion of an outer surface of the case inside the pump, wherein the portion has inferior durability compared with the rest of the outer surface.