Permanent-magnet-embedded electric motor and compressor

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10581286
APP PUB NO 20180062462A1
SERIAL NO

15557587

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rotor of a permanent-magnet-embedded electric motor includes an annular rotor core having a plurality of magnet insertion holes formed in a circumferential direction, and permanent magnets inserted into the magnet insertion holes, respectively. The rotor core is formed by alternately stacking a first core block and a second core block in an axial direction of the rotor core, the first core block not having slits between each of the magnet insertion holes and a circumferential surface of the rotor core, and the second core block having the slits between each of the magnet insertion holes and the circumferential surface of the rotor core. One of the slits and one end of the permanent magnet are arrayed in a radial direction, and the other slit and the other end of the permanent magnet are arrayed in the radial direction.

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Patent Owner(s)

  • MITSUBISHI ELECTRIC CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishikawa, Atsushi Tokyo, JP 165 1426
Nigo, Masahiro Tokyo, JP 67 344

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