ROTOR PUNCHING SHEET, ROTOR IRON CORE, ROTOR, ELECTRIC MOTOR, AND VEHICLE
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United States of America Patent
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Issued Date -
Jun 29, 2023
app pub date -
Mar 6, 2023
filing date -
Jan 29, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A rotor punching sheet, a rotor iron core, a rotor, an electric motor and a vehicle are provided. The rotor punching sheet has a punching sheet body, a shaft hole and a plurality of slot groups. The shaft hole is provided in the punching sheet body. The plurality of slot groups are provided in the punching sheet body. Each slot group has at least one magnetic slot. Each magnetic slot has two magnet slots. Each magnet slot has a first slot end and a second slot end, which are on the axial end face, the first slot end being disposed closer to the shaft hole than the second slot end. A peripheral edge of the punching sheet body has a peripheral section on the axial end face. The peripheral section has a plurality of arc-shaped sections connected to each other and corresponding to the plurality of slot groups. Each arc-shaped section has a first circular arc section concentric with the shaft hole, and a second circular arc section eccentric from the shaft hole.
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