| 摘要 |
PROBLEM TO BE SOLVED: To constitute a motor which does not require coating for a board by preventing the adhesion of foreign matter to a rotation detector, when providing it with a rotation detector for detecting the rotation state of a rotary shaft. SOLUTION: A recessed groove 12n is made in a sensor holder 12, and an engaging claw 12q is made apart from the bottom 12j of the groove in the recessed groove 12n, and also step locks 12f, 12o, and 12p are made at the inner pieces 12k, 12l, and 12m erected from the groove bottom 12j. One flank of the board 14 where a Hall element 13 is arranged is opposed to the groove bottom 12j of the recessed groove 12n of the sensor holder 12, the board 14 is set by force between the engaging claw 12q and the step locks 12f, 12o, and 12p, and the recessed groove 12n where the Hall element 13 is arranged is covered with the board. |
