A motor comprising: a shaft; a rotor being provided to abut an outer circumference of the shaft; and a stator being disposed outside of the rotor to be away from the rotor at a certain gap, the stator including: a stator core having an annular shape; teeth respectively protruding from the stator core toward the rotor in a radial direction ®; and coils (U11 to U41, V12 to V42, W11 to W41) respectively wound onto the teeth n turns including first to n-th turns, where n is an integer of 1 or greater, wherein the shaft includes a hollow part serving as a passage for refrigerant used to cool the inside of the motor characterized in that, the coils (U11 to U41, V12 to V42, W11 to W41) are each configured by winding a conductive member having a polygonal cross section onto the teeth, the polygonal cross section being orthogonal to longer direction of the shaft, and each of the coils (U11 to U41, V12 to V42, W11 to W41) includes a cut-away part on at least either a first opposing surface or a second opposing surface, the cut-away part having a shape being cut away so as to extend in the longer direction of the shaft, the first opposing surface representing an opposing surface to a side surface of a corresponding one of the teeth, and the second opposing surface representing an opposing surface to a corresponding one of the coils, the corresponding one of the coils being wound onto adjacent one of the teeth, wherein only a turn being closest to the stator core is provided with the cut-away part, and the cut-away part and at least either the first opposing surface or the second opposing surface define a space allowing the refrigerant used for cooling the coils to pass through. a shaft; a rotor being provided to abut an outer circumference of the shaft; and a stator being disposed outside of the rotor to be away from the rotor at a certain gap, the stator including: a stator core having an annular shape; teeth respectively protruding from the stator core toward the rotor in a radial direction ®; and coils (U11 to U41, V12 to V42, W11 to W41) respectively wound onto the teeth n turns including first to n-th turns, where n is an integer of 1 or greater, a stator core having an annular shape; teeth respectively protruding from the stator core toward the rotor in a radial direction ®; and coils (U11 to U41, V12 to V42, W11 to W41) respectively wound onto the teeth n turns including first to n-th turns, where n is an integer of 1 or greater, the shaft includes a hollow part serving as a passage for refrigerant used to cool the inside of the motor characterized in that, the coils (U11 to U41, V12 to V42, W11 to W41) are each configured by winding a conductive member having a polygonal cross section onto the teeth, the polygonal cross section being orthogonal to longer direction of the shaft, and each of the coils (U11 to U41, V12 to V42, W11 to W41) includes a cut-away part on at least either a first opposing surface or a second opposing surface, the cut-away part having a shape being cut away so as to extend in the longer direction of the shaft, the first opposing surface representing an opposing surface to a side surface of a corresponding one of the teeth, and the second opposing surface representing an opposing surface to a corresponding one of the coils, the corresponding one of the coils being wound onto adjacent one of the teeth, a turn being closest to the stator core is provided with the cut-away part, and the cut-away part and at least either the first opposing surface or the second opposing surface define a space allowing the refrigerant used for cooling the coils to pass through.