A motor comprising: a stator; and a rotor configured to rotate relative to the stator, wherein the stator comprises: a stator core that defines a back yoke of the motor, wherein the stator core comprises an upper axial end and a lower axial end, axially distal from the upper axial end, teeth that extend radially inward from the back yoke, first ends of coils that extend to a portion of the teeth and that are configured to provide power to the stator, coils, each of the coils being wound around one of the teeth, wherein a first end of each of the coils is upwardly drawn out of the one of the teeth, and an upper insulator coupled to a top surface of the stator core, and wherein the upper insulator comprises: power terminal units, each of the power terminal units being connected to one of the first ends of coils, an upper insulator body that insulates the power terminal units from the stator core, and characterized in that the upper insulator further comprises protrusions that radially inward protrude from the upper insulator body, each of the protrusions defining a guide hole configured to receive one of the first ends of the coils therein, and each of the power terminal units comprises a power terminal disposed on a top surface of the one of the protrusions and connected to one of the first ends of the coils that passes through the guide hole. a stator; and a rotor configured to rotate relative to the stator, wherein the stator comprises: a stator core that defines a back yoke of the motor, wherein the stator core comprises an upper axial end and a lower axial end, axially distal from the upper axial end, teeth that extend radially inward from the back yoke, first ends of coils that extend to a portion of the teeth and that are configured to provide power to the stator, coils, each of the coils being wound around one of the teeth, a stator core that defines a back yoke of the motor, wherein the stator core comprises an upper axial end and a lower axial end, axially distal from the upper axial end, teeth that extend radially inward from the back yoke, first ends of coils that extend to a portion of the teeth and that are configured to provide power to the stator, coils, each of the coils being wound around one of the teeth, wherein a first end of each of the coils is upwardly drawn out of the one of the teeth, and an upper insulator coupled to a top surface of the stator core, and wherein the upper insulator comprises: power terminal units, each of the power terminal units being connected to one of the first ends of coils, an upper insulator body that insulates the power terminal units from the stator core, and characterized in that the upper insulator further comprises protrusions that radially inward protrude from the upper insulator body, each of the protrusions defining a guide hole configured to receive one of the first ends of the coils therein, and each of the power terminal units comprises a power terminal disposed on a top surface of the one of the protrusions and connected to one of the first ends of the coils that passes through the guide hole. power terminal units, each of the power terminal units being connected to one of the first ends of coils, an upper insulator body that insulates the power terminal units from the stator core, and characterized in that the upper insulator further comprises protrusions that radially inward protrude from the upper insulator body, each of the protrusions defining a guide hole configured to receive one of the first ends of the coils therein, and each of the power terminal units comprises a power terminal disposed on a top surface of the one of the protrusions and connected to one of the first ends of the coils that passes through the guide hole.