A motor comprising: a rotating shaft; a rotor configured to surround the rotating shaft; a stator disposed outside the rotor, wherein the stator comprises a coil and an insulator on which the coil is wound; the insulator comprising: a first side wall portion and a second side wall portion in which the coil is wound on outsides thereof, and which are disposed to face each other, to form an accommodation space at insides thereof, and also to form an entrance portion configured for insertion of the stator; a connecting portion integrally formed with the first side wall portion and the second side wall portion; and a clip portion disposed to protrude from at least one of an end of the first side wall portion toward the inside of the second side wall portion and an end of the second side wall portion toward the inside of the first side wall portion, and disposed at the entrance portion, wherein the first side wall portion and the second side wall portion are disposed in the form of a cantilever centering on the connecting portion to be elastically deformed, and wherein the stator comprises a fitting groove which is disposed at each of teeth and disposed in a height direction thereof, wherein the first side wall portion and the second side wall portion comprise fitting protrusion (113, 123) which protrudes convexly from an inner surface of the first side wall portion and an inner surface of the second side wall portion and is fitted into the fitting groove. a rotating shaft; a rotor configured to surround the rotating shaft; a stator disposed outside the rotor, wherein the stator comprises a coil and an insulator on which the coil is wound; the insulator comprising: a first side wall portion and a second side wall portion in which the coil is wound on outsides thereof, and which are disposed to face each other, to form an accommodation space at insides thereof, and also to form an entrance portion configured for insertion of the stator; a connecting portion integrally formed with the first side wall portion and the second side wall portion; and a clip portion disposed to protrude from at least one of an end of the first side wall portion toward the inside of the second side wall portion and an end of the second side wall portion toward the inside of the first side wall portion, and disposed at the entrance portion, a first side wall portion and a second side wall portion in which the coil is wound on outsides thereof, and which are disposed to face each other, to form an accommodation space at insides thereof, and also to form an entrance portion configured for insertion of the stator; a connecting portion integrally formed with the first side wall portion and the second side wall portion; and a clip portion disposed to protrude from at least one of an end of the first side wall portion toward the inside of the second side wall portion and an end of the second side wall portion toward the inside of the first side wall portion, and disposed at the entrance portion, wherein the first side wall portion and the second side wall portion are disposed in the form of a cantilever centering on the connecting portion to be elastically deformed, and wherein the stator comprises a fitting groove which is disposed at each of teeth and disposed in a height direction thereof, wherein the first side wall portion and the second side wall portion comprise fitting protrusion (113, 123) which protrudes convexly from an inner surface of the first side wall portion and an inner surface of the second side wall portion and is fitted into the fitting groove.