초록 ▼

A brushless transversal-flux permanent magnet motor has a stator construction that forms a virtual bobbin, so that windings may be simply circumferentially wrapped around the stator, eliminating the need for winding insertion. The stator may be constructed of first and second core structures each ha

A brushless transversal-flux permanent magnet motor has a stator construction that forms a virtual bobbin, so that windings may be simply circumferentially wrapped around the stator, eliminating the need for winding insertion. The stator may be constructed of first and second core structures each having an elongated powdered iron pole piece central portion with end terminations, and integral with a tubular element also of powdered iron. Epoxy, or like non-magnetic material, fills in the volume between the pole piece end terminations to form a disc-shaped structure, the windings wrapping around the tubular elements. A discontinuity is provided on each pole piece and termination to allow start-up. The rotor may be a yoke having permanent magnet rings aligned with the pole pieces, and mounted for rotation by a shaft central of the tubular elements engaging bearings in the tubular elements. A circuit board containing motor control circuitry (for switching connection of the windings to a source of electrical power) can be connected to the stator to mechanically mount it while facilitating connection of the windings to the circuitry.

대표청구항 ▼

A brushless transversal-flux permanent magnet motor comprising: distinct first and second stator core structures of magnetizable material, each having a distinct pole piece and a tubular element, each said tubular element extending substantially transversely to a said pole piece and integral therewi

A brushless transversal-flux permanent magnet motor comprising: distinct first and second stator core structures of magnetizable material, each having a distinct pole piece and a tubular element, each said tubular element extending substantially transversely to a said pole piece and integral therewith; first and second windings received by said stator core structure and at least one of said windings in contact with at least one of said tubular elements; a shaft defining an axis and received by said tubular elements of said stator core structures, said tubular elements being aligned with each other and spacing said first and second stator core structures along said axis, a rotor yoke connected to said shaft and surrounding said stator core structures, and including first and second permanent magnets aligned with said stator first and second pole pieces; and said stator core structure being held together so that said pole pieces extend in planes substantially parallel to each other, oriented in said planes so that the pole pieces are perpendicular to each other.