Rotating electric machine
AssigneeMitsubishi Electric Corporation
InventorsManabu Yoshinori, Yoshiaki Kitta, Koichi Ojima, Hiroyuki Higashino, Toshiya Chazono, Masaki Horii
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Abstract
A coolant flow path structure which cools a rotor is configured of a first coolant flow path forming a radial coolant flow path of the rotor and a second coolant flow path communicating with the first coolant flow path and forming an axial coolant flow path of the rotor, and a negative pressure structure, which brings an exist of the coolant flow path structure into a negative pressure as a result of a rotation of the rotor, is provided at the exit of the second coolant flow path.
Claims6
A rotating electric machine comprising:
- a coolant flow path structure and a negative pressure structure, wherein
- the coolant flow path structure, which cools a rotor configured of a rotor core and end plates provided at both axial ends of the rotor core, is configured of a first coolant flow path forming a radial coolant flow path of the rotor and a second coolant flow path communicating with the first coolant flow path and forming an axial coolant flow path of the rotor, and wherein
- the negative pressure structure, which brings an exit of the coolant flow path structure into a negative pressure as a result of a rotation of the rotor, is provided at the exit of the second coolant flow path, and
- wherein a coolant reservoir opening to the air is provided at the entrance of the first coolant flow path, and a coolant flows from the coolant reservoir to the first coolant flow path.
A rotating electric machine comprising:
- a coolant flow path structure and a negative pressure structure, wherein
- the coolant flow path structure, which cools a rotor configured of a rotor core and end plates provided at both axial ends of the rotor core, is configured of a first coolant flow path forming a radial coolant flow path of the rotor and a plurality of second coolant flow paths communicating with the first coolant flow path and forming axial coolant flow paths of the rotor,
- wherein branches to the plurality of second coolant flow paths are configured by superimposing an end plate, by which an axial flow path and radial flow path are formed, and a flat plate in which through holes are selectively provided, and wherein
- the negative pressure structure, which brings an exist of the coolant flow path structure into a negative pressure as a result of a rotation of the rotor, is provided at the exit of the second coolant flow path.
Dependencies are inferred from the claim text.