초록 ▼

A variable speed controlled induction motor has a rotor (8) formed in one piece and a plurality of stators (24,25), the rotor having a plurality of rotor cores (2,3) and a plurality of conductive members (5) interconnected and the stators having respective stator windings (22,23). The stator winding

A variable speed controlled induction motor has a rotor (8) formed in one piece and a plurality of stators (24,25), the rotor having a plurality of rotor cores (2,3) and a plurality of conductive members (5) interconnected and the stators having respective stator windings (22,23). The stator windings (22,23) are connected in series, the rotor conductive members (5) are short-circuited by connecting members (r) at an air space or a non-magnetic core portion disposed between the rotor cores (2,3), and at least one of the plurality of stators (24,25) is associated with a phase shifter (38;47;50;51) providing the voltage of a given phase to the stator windings, whereby the rotational speed can be controlled easily over a wide range with excellent torque characteristics and efficiency.

대표청구항 ▼

A variable speed controlled induction motor comprising: a rotor formed in one-piece having a plurality of rotor cores mounted, with a predetermined air space or a non-magnetic core portion being provided therebetween, on a common axis and having a plurality of conductive members interconnected and r

A variable speed controlled induction motor comprising: a rotor formed in one-piece having a plurality of rotor cores mounted, with a predetermined air space or a non-magnetic core portion being provided therebetween, on a common axis and having a plurality of conductive members interconnected and respectively mounted on said rotor cores; a plurality of stators having a plurality of stator cores disposed side by side and surroundingly facing said respective rotor cores and having stator windings wound respectively on said stator cores, said stator windings being connected or coupled in series with respect to a power source; connecting members short-circuiting said conductive members at said air space or non-magnetic core portion disposed between said rotor cores; and phase shifting means for producing phase differences between the voltages induced on the portions of said conductive members which face one of said plurality of stators and the voltages induced on the corresponding portions of said conductive members which face another one of said stators.