Brushless motor with crossing wire holder

A brushless motor comprising:

• a stator including a core formed with a plurality of tooth parts arranged in a circumferential direction, a coil set wound on the core, and an insulator holding the core and the coil set while providing insulation therebetween, the stator generating a rotating magnetic field in response to supply of current to the coil set;
• and
• a rotor including magnetic poles, which oppose the stator in a radial direction from an inside of the stator and are magnetized to different polarities alternately in the circumferential direction,
• wherein the coil set is formed of a plurality of coils wound about the plurality of tooth parts and a plurality of crossing wires connecting the coils in the circumferential direction,
• wherein the insulator of the stator is formed of a plurality of ring parts stacked in the axial direction,
• wherein the plurality of ring parts has guide projections forming a crossing wire holder part, which holds the crossing wire,
• wherein the crossing wire holder part holds a radially inside part and a radially outside part of the crossing wire by one and the other of the ring parts provided adjacent to each other in the axial direction, respectively, and
• wherein the plurality of crossing wires is stacked in the axial direction in a manner that the crossing wires and the ring parts are stacked alternately.

A brushless motor comprising:

• a stator including a core and a coil set for generating a rotating magnetic field in response to supply of current, the core including a plurality of tooth parts arranged in a circumferential direction, and the coil set including a plurality of coils wound about the tooth parts and a plurality of crossing wires connecting the plurality of coils in the circumferential direction;
• a rotor including magnetic poles opposing the stator in a radial direction and magnetized to different polarities alternately in the circumferential direction for rotation in correspondence to the rotating magnetic field;
• and
• an insulator holding the core and the coil set while providing insulation therebetween at one axial end of the core and including a plurality of parts stacked in the axial direction,
• wherein the plurality of parts includes one insulation part and another insulation part, the one insulation part including a wall part extending axially and a ring part extending radially from the wall part, the another insulation part including a ring part provided inside the wall part of the one insulation part to form a space relative to the one insulation part and hold the crossing wires therein to extend in a circumferential direction in a manner surrounded by the one insulation part and the another insulation part, and the plurality of crossing wires is stacked in the axial direction in a manner that the crossing wires and the ring parts are stacked alternately.