Crown brushless motor device and method

A crown brushless motor comprising:

• a stator;
• a rotor comprising:
• a cylindrical core member;
• a plurality of first extensions extending from a first end of the cylindrical core member, and
• a plurality of second extensions extending from a second end of the cylindrical core member;
• and
• a static coiled wire arranged around the cylindrical core member and configured to magnetize the cylindrical core member to generate a magnetic flux in an axial direction of the cylindrical core member;
• wherein the plurality of first extensions and the plurality of second extensions are configured to split and guide the magnetic flux and change a direction of the magnetic flux from the axial direction to a direction other than the axial direction upon magnetization of the cylindrical core member by the static coiled wire;
• and
• wherein the plurality of first extensions and the plurality of second extensions extend outwardly towards a center level of the cylindrical core.

A crown brushless motor comprising:

• a stator;
• a rotor comprising:
• a cylindrical core member;
• a plurality of first extensions extending from a first end of the cylindrical core member, and
• a plurality of second extensions extending from a second end of the cylindrical core member;
• and
• a static coiled wire arranged around the cylindrical core member and configured to magnetize the cylindrical core member to generate a magnetic flux in an axial direction of the cylindrical core member;
• wherein the plurality of first extensions and the plurality of second extensions are configured to split and guide the magnetic flux and change a direction of the magnetic flux from the axial direction to a direction other than the axial direction upon magnetization of the cylindrical core member by the static coiled wire;
• and
• wherein the plurality of first extensions and the plurality of second extensions extend inwardly towards a center level of the cylindrical core.

A crown brushless motor comprising:

• a stator;
• a rotor comprising:
• a cylindrical core member comprising a permanent magnet, the permanent magnet generates a magnetic flux in an axial direction of cylindrical core member;
• a plurality of first extensions extending from a first end of the cylindrical core member, and
• a plurality of second extensions extending from a second end of the cylindrical core member;
• wherein the plurality of first extensions and the plurality of second extensions are configured to split and guide the magnetic flux and change a direction of the magnetic flux from the axial direction to a direction other than the axial direction;
• and
• wherein the cylindrical core member, the first extensions and the second extensions form a single permanent magnet.

A crown brushless motor comprising:

• a stator;
• a rotor comprising:
• a cylindrical core member comprising a permanent magnet, the permanent magnet generates a magnetic flux in an axial direction of cylindrical core member;
• a plurality of first extensions extending from a first end of the cylindrical core member, and
• a plurality of second extensions extending from a second end of the cylindrical core member;
• wherein the plurality of first extensions and the plurality of second extensions are configured to split and guide the magnetic flux and change a direction of the magnetic flux from the axial direction to a direction other than the axial direction;
• and
• wherein the motor comprises openings in rotor flanges between the rotor and the stator which are configured to ventilate the rotor and stator.

A crown brushless motor comprising:

• a stator;
• a rotor comprising:
• a cylindrical core member comprising a permanent magnet, the permanent magnet generates a magnetic flux in an axial direction of cylindrical core member;
• a plurality of first extensions extending from a first end of the cylindrical core member, and
• a plurality of second extensions extending from a second end of the cylindrical core member;
• wherein the plurality of first extensions and the plurality of second extensions are configured to split and guide the magnetic flux and change a direction of the magnetic flux from the axial direction to a direction other than the axial direction;
• and
• wherein the plurality of first extensions and the plurality of second extensions extend towards a center level of the cylindrical core.