The utility model discloses a multislot formula has radiating PMSM of signal output data, including the motor box, the left and right sides of motor box is provided with the through -hole, there is the guard circle fixed the company on the internal surface of through -hole, swing joint has the pivot between two guard circles, the left and right sides fixedly connected with bearing of pivot to the motor box is worn out on the right side of pivot, the fixedly connected with rotor core on the surface of department of pivot central authorities. PMSM is in work, the pivot is rotatory, it is rotatory to drive first flabellum and second flabellum, two flabellum wind speed become fast, make the rubber circle on the slotted hole blow afloat, can reach radiating effect, during the PMSM stop work, first flabellum and the stall of second flabellum, make rubber circle whereabouts, the lug blocks in the slotted hole just, prevent the external air and the entering of dust, protection PMSM's safety, make this PMSM have the radiating function of multislot formula signal output data.