ROTOR ASSEMBLY AND MOTOR COMPRISING THE SAME
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United States of America Patent
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Issued Date -
Dec 24, 2020
app pub date -
Nov 26, 2019
filing date -
Jun 24, 2019
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Abstract
A rotor assembly including a rotor core, a plurality of permanent magnets, and a plastic body. The rotor core includes an inner core and a plurality of outer cores surrounding the inner core. The inner core includes an axial through hole. The plurality of outer cores is circumferentially disposed at intervals around the inner core; a radial groove is formed between every two adjacent outer cores. The plurality of permanent magnets is embedded in a plurality of radial grooves, respectively. The plurality of radial grooves each includes a first opening away from the inner core and a second opening towards the inner core; every outer core includes a first end away from the inner core and a second end towards the inner core. The first end includes two first hooks disposed on two sides of the first end, respectively.
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