Fixing structure of motor rotor and its shell

The utility model relates to a fixing structure of ceiling fan motor rotor and the shell, which mainly comprises a motor rotor, a stator and an outer shell which is formed by the combination of an upper cover body and a lower cover body. A top axis hole is arranged in the top center of the outer shell and the center of the top axis hole serves as the benchmark, the proper positions of the circumference are beforehand charged with countersunk grooves, and a resting inserting district is formed between each countersunk groove and the wall surface inside of the outer shell. The proper position where the motor rotor opposite to each countersunk groove of the outer shell is provided with a peg whose outside edge is convexly provided with a positioning tenon. The resting structure makes the space between the ceiling fan motor and each component have accurate coaxiality and positioning effect, and simultaneously increases the structure intensity of the outer shell.