CPC H02K 7/145 (2013.01) [H02K 1/27 (2013.01); H02K 3/24 (2013.01); H02K 3/28 (2013.01); H02K 5/08 (2013.01); H02K 5/225 (2013.01); H02K 9/02 (2013.01); H02K 11/21 (2016.01); H02K 11/215 (2016.01); H02K 29/06 (2013.01); H02K 29/08 (2013.01); H02K 1/14 (2013.01); H02K 2203/09 (2013.01); H02K 2211/03 (2013.01)] | 15 Claims |
1. A power tool having a brushless motor, the brushless motor comprising:
a stator including a tubular stator core having a plurality of teeth that protrude radially inwardly from an inner side of the stator core, an electrically insulating member affixed to a first end of the stator core, and a plurality of coils respectively wound around the plurality of teeth and the electrically insulating member;
a rotor including a rotor core disposed in an interior of the tubular stator core, a plurality of permanent magnets and a rotary shaft fixed to the rotor core and having a rotational axis;
a plurality of terminals supported by the electrically insulating member, the terminals being respectively electrically connected to the coils; and
a sensor-circuit board supported by the first electrically insulating member;
wherein:
the electrically insulating member is bounded by and entirely disposed between a first plane perpendicular to the rotational axis and a second plane perpendicular to the rotational axis,
the sensor-circuit board is located between the first plane and the second plane and includes a body portion having a central opening and a plurality of legs extending radially from the body portion, and
the rotary shaft extends through the central opening.
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