| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor wherein the abnormal heating of a coil due to overload, etc., is prevented by simple change in wiring. SOLUTION: A rotator 11, a stator 21 comprising a 3-phase coil 2, and a rotation detecting mechanism for detecting a magnetic pole 12 of the rotator 11, are provided. Here, the rotation detecting mechanism comprises a detection element circuit 3 comprising three parallel detecting elements corresponding to the 3-phase coil 2, its power source 8, and control circuit 35 wherein an electrification condition is made corresponding to each case of signal combination from the detecting element, while each output line 9 of the detecting element and one terminal of the power source 8 are connected in parallel through a resistor 7, respectively, two temperature protective devices 4 are connected in series to the detection element circuit 3, and each temperature protective device 4 is provided one by one near each of 2-phase coil of 3 phase coil. |
