Brush motor
地域：
Chiba
摘要
A brush motor includes: a rotor core provided in a rotor; s teeth provided in the rotor core; s concentrated-winding coils with electric wires being respectively wound around the teeth; a commutator provided on the rotor in a relatively non-rotatable manner; c commutator pieces provided in the commutator and connected to the coils; p pairs of magnet magnetic poles provided on a stator and arranged to face the teeth; and a brush that is brought into sliding contact with the commutator pieces to supply a current to the coils, in which 0.5
說明書
In addition, a range in which one blade 13 faces the magnet 4 in the cross section perpendicular to the rotation axis C is expressed by an angle with respect to the rotation axis C, and this is referred to as a blade angle θW. That is, a central angle of a fan shape surrounded by the blade 13 and line segments connecting both ends of the blade 13 to the rotation axis C in the cross section perpendicular to rotation axis C is defined as the blade angle θW. In the brush motor 1 of the first example, the blade angle θW is preferably set to the magnitude of the magnet angle θM or more (θW≥θM). As a result, the magnet magnetic flux is easily picked up by the teeth 11, and the magnetic flux is effectively utilized.
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