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US 12,706,495 B2Granted
Electric pump rotor
AssigneeAisin Corporation
InventorsYuji Minemura, Shuji Hattori, Feng Li
Life of this patent
Estimating the term…
Abstract
An electric pump rotor includes: a permanent magnet; a cylindrical rotor core that holds the permanent magnet; an adjacent member that is provided adjacent to one side in an axial direction of the permanent magnet and the rotor core; and a resin molded portion in which a drive unit that covers the permanent magnet, the rotor core, and the adjacent member, and a blade portion that pressure-feeds a working fluid are integrally formed by resin molding.
Claims6
An electric pump rotor, comprising:
- a permanent magnet;
- a cylindrical rotor core that holds the permanent magnet;
- an adjacent member that is provided adjacent to one side in an axial direction of the permanent magnet and the rotor core;
- and
- a resin molded portion in which a drive unit that covers the permanent magnet, the rotor core, and the adjacent member, and a blade portion that pressure-feeds a working fluid are integrally formed by resin molding, wherein
- the adjacent member includes
- a closed surface portion that includes a closed portion that closes the other side in the axial direction of an entire circumference hole portion formed over an entire circumference in a circumferential direction at an end portion of the drive unit on the one side in the axial direction, an inner extending portion that extends toward a radial inner side continuously from the closed portion, and an outer extending portion that extends toward a radial outer side continuously from the closed portion, and
- at least one first entire circumference protrusion portion that is formed over the entire circumference in the circumferential direction toward the one side in the axial direction at each of the inner extending portion and the outer extending portion, and is welded to the resin molded portion.
5 more elements
Dependencies are inferred from the claim text.