Patent ID: 11952133
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  F  H | IPC B  F  H

Claim 0:
1. A motor-integrated fluid machine to suction a fluid from a suction port and discharge the suctioned fluid from a discharge outlet, the machine comprising:
a shaft portion at a center of a rotation axis;
a rotating portion configured to rotate around the shaft portion;
an outer peripheral portion on an outer periphery of the shaft portion; and
a motor configured to rotate the rotating portion,
wherein the rotating portion is rotatably supported on the shaft portion so that a shaft portion side is a fixed end side and an outer peripheral portion side is a free end side,
wherein the motor is an outer peripheral drive motor configured to apply power from the outer peripheral portion to rotate the rotating portion,
wherein the rotating portion includes:
a plurality of blades arranged side by side in a circumferential direction of the rotation axis, and
a rotating outer peripheral portion on an outer peripheral side of the plurality of blades,

wherein the motor includes:
a rotor side magnet in the rotating outer peripheral portion, and
a stator side magnet in the outer peripheral portion facing the rotor side magnet,

wherein the plurality of blades includes a first blade and a second blade,
wherein at least a predetermined portion of the first blade and at least a predetermined portion of the second blade are located at different positions in an axial direction of the rotation axis,
wherein the first blade is closer to a suction port side than the second blade in the axial direction of the rotation axis such that the plurality of blades are provided in multiple stages in the axial direction of the rotation axis, and
wherein the second blade has a pitch angle larger than a pitch angle of the first blade, the pitch angle being an angle with respect to the circumferential direction of the rotation axis.