Reluctance-type motor having widened bottom

A reluctance-type motor comprising:

• a core having a cylindrical ring and a plurality of salient poles protruding from the cylindrical ring in a radial direction of the cylindrical ring,
• wherein each of the plurality of salient poles has a bottom width and a top width in a circumferential direction of the core, the bottom width is connected to the cylindrical ring and the top width is away from the ring, respectively, with the bottom width being sized to be larger than the top width,
• wherein the cylindrical ring has a width in a radial direction of the core to allow at least a half of a magnetic flux in the each of the plurality of salient poles to pass through the cylindrical ring,
• wherein the core has a plurality of thin magnetic plates stacked in an axial direction of the core,
• wherein each of the plurality of thin magnetic plates has a plurality of slits in the each of the plurality of salient poles,
• wherein the each of the plurality of thin magnetic plates has a thickness that is less than 5 times of a maximum width of each of the plurality of slits,
• wherein the plurality of salient slits are formed differentially between adjacent two groups of the thin magnetic plates in such a manner that at least one of positions, numbers and widths of the plurality of salient slits are different.

A reluctance-type motor comprising:

• a core having a cylindrical ring and a plurality of salient poles protruding from the cylindrical ring in a radial direction of the cylindrical ring,
• wherein each of the plurality of salient poles has a bottom width and a top width in a circumferential direction of the core, the bottom width is connected to the cylindrical ring and the top width is away from the ring, respectively, with the bottom width being sized to be larger than the top width,
• wherein the cylindrical ring has a width in a radial direction of the core to allow at least a half of a magnetic flux in the each of the plurality of salient poles to pass through the cylindrical ring,
• wherein the core has a plurality of thin magnetic plates stacked in an axial direction of the core,
• wherein each of the plurality of thin magnetic plates has a plurality of slits in the each of the plurality of salient poles,
• wherein the each of the plurality of thin magnetic plates has a thickness that is less than 5 times of a maximum width of each of the plurality of slits,
• wherein the plurality of salient slits are formed differentially between two adjacent salient poles of the thin magnetic plates in such a manner that at least one of positions, numbers and widths of the plurality of salient slits are different.