Rotor for rotating electrical machine
AssigneeAisin Aw Co., Ltd.
InventorShinya KATAYAMA
Life of this patent
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Abstract
A rotor for a rotating electrical machine, the rotor including: a rotor core having a magnet insertion hole extending in an axial direction that is a direction along a rotor rotational axis; and a permanent magnet fixed inside the magnet insertion hole with an adhesive, wherein the permanent magnet has a magnet-side flat surface that is formed as a rectangular flat surface, wherein the magnet insertion hole has, in an internal surface thereof, a hole-side flat surface that is formed as a flat surface facing the magnet-side flat surface, and wherein the adhesive is a foaming adhesive and is provided at least at four corners of the magnet-side flat surface, and a thickness of the adhesive at a center of the magnet-side flat surface is smaller than a thickness of the adhesive at the four corners.
Claims8
A rotor for a rotating electrical machine, the rotor comprising:
- a rotor core having a magnet insertion hole extending in an axial direction that is a direction along a rotor rotational axis;
- and
- a permanent magnet fixed inside the magnet insertion hole with an adhesive,
- wherein the permanent magnet has a magnet-side flat surface that is formed as a rectangular flat surface,
- wherein the magnet insertion hole has, in an internal surface thereof, a hole-side flat surface that is formed as a flat surface facing the magnet-side flat surface, and
- wherein the adhesive is a foaming adhesive and is provided at least at four corners of the magnet-side flat surface, and a thickness of the adhesive at a center of the magnet-side flat surface is smaller than a thickness of the adhesive at the four corners.
Dependencies are inferred from the claim text.