Rotor
AssigneeHonda Motor Co., Ltd.
InventorTakuya Yoshizawa
Life of this patent
Estimating the term…
Abstract
The rotor includes a shaft that allows cooling oil to flow therein; a substantially cylindrical rotor yoke fitted over the shaft; a magnet fitted to the rotor yoke; and a first end plate abutting on one end of the rotor yoke. In this configuration, the rotor yoke includes a cooling oil passage that is formed on a radially inner side of the magnet and allows the cooling oil to flow in an axial direction, the rotor yoke receives a pressing force in the axial direction via the first end plate, and the rotor yoke and the first end plate form a sealing part that seals the cooling oil, in a section positioned between the cooling oil passage and the magnet in the radial direction.
Claims4
A rotor comprising:
- a shaft that allows cooling oil to flow therein;
- a substantially cylindrical rotor yoke fitted over the shaft;
- a magnet fitted to the rotor yoke;
- and
- a first end plate abutting on one end of the rotor yoke, wherein
- the rotor yoke includes a cooling oil passage that is formed on a radially inner side of the magnet and allows the cooling oil to flow in an axial direction of the shaft,
- the rotor yoke receives a pressing force in the axial direction via the first end plate,
- the rotor yoke and the first end plate form a sealing part that seals the cooling oil, in a section positioned between the cooling oil passage and the magnet in a radial direction,
- the first end plate is deformed so that an outer peripheral portion thereof warps in the axial direction, and
- the sealing part is an angled part defined by an end part of an outer peripheral surface of a portion of the rotor yoke defining a cavity of the rotor yoke, the outer peripheral surface of the portion being pressed by an inner peripheral part of a flat part of the first end plate.
Dependencies are inferred from the claim text.