Brush-less motor
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United States of America Patent
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-
Dec 20, 2016
Grant Date -
Sep 10, 2015
app pub date -
May 20, 2015
filing date -
Dec 3, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A brush-less motor is disclosed, comprising a stator, a rotor, a plurality of field-effect tubes, a commutation circuit board, a control circuit board and a motor end cap, wherein the motor end cap comprises a front end cap and a rear end cap which are mutually fixedly connected to form an integrated motor; the plurality of field-effect tubes is directly fixed at the motor front end cap; the commutation circuit board and the control circuit board are both connected to the motor front end cap. The field-effect tubes of the brush-less motor are directly installed on a housing of the motor, ensuring good heat dissipation, saving heat sinks and cost; the integrated brush-less motor runs more smoothly and imposes requirements which are not as high as those imposed by the split brush-less motor on the accuracy of the housing. Thus, the reject ratio of products during batch production is reduced.
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