Abstract: A washing machine capable of independently driving two rotors using one inverter in a simple configuration without supplying a composite current includes an outer rotor having a plurality of switching magnets arranged at intervals in the circumferential direction, and an inner rotor having a plurality of stationary magnets arranged to be radially arranged at intervals in the circumferential direction. When a magnetizing current is supplied to the coil of the stator, the magnetic pole of the switching magnet is inverted and the number of the poles of the outer rotor is switched.

Abstract: Disclosed herein is a washing machine. The washing machine includes a housing provided with an inlet for laundry disposed on a front surface thereof, a water tub provided inside of the housing and configured to store water, a drum rotatably provided inside of the water tub, a pulsator provided inside of the drum and configured to be rotated independently of the drum, a motor provided with a stator, and a first and second rotor connected to the drum and the pulsator, respectively, and at least one processor configured to apply a q-axis current to the stator to rotate the second rotor and configured to apply a d-axis current to the stator to rotate the first rotor based on a phase difference between the first rotor and the second rotor.

Abstract: The present disclosure includes a washing machine including an inner rotor and an outer rotor. An outer rotor and an inner rotor may be rotated in a synchronous rotation mode or a counter rotation mode by converting the number of magnetic poles of the outer rotor. When the outer rotor becomes inoperable when the outer rotor is set to the number of magnetic poles for performing the counter rotation mode, it is converted to the number of magnetic poles for performing the synchronous rotation mode while the outer rotor is stopped.

Abstract: A motor has a two rotors which are independently operated using a single inverter and without being supplied with a complex current. Further the motor is capable of shifting a rotation direction of each of two rotors by performing a magnetizing operation one time and reversing polarities of the shifting magnets when a mode of the motor is shifted from a synchronous mode in which the first rotor and the second rotor rotate in the same direction to a counter mode in which the first rotor and the second rotor rotate in opposite directions, and shifting the mode of the motor to the counter mode while the magnetizing operation is performed one time times and relative positions of the first rotor and the second rotor are changed when the first rotor and the second rotor inertially rotate in the synchronous mode.

Abstract: Provided is a washing machine including: a stator including a coil; a rotor including a plurality of variable magnets each having a magnetic force variable, and rotatable with respect to the stator; a controller configured to control an energizing of the coil to increase or decrease a magnetic force of the variable magnet; and a plurality of position sensors each having a output voltage changed according to a magnetic flux of the variable magnet.

Abstract: Provided is a washing machine motor capable of efficiently generating torque by improving a winding factor of coils with a relatively simple configuration. The washing machine motor (12) has an outer rotor (20), an inner rotor (30), and a stator (60). The outer rotor (20) and the inner rotor (30) share coils (63) of the stator (60), and a composite current is supplied to the coils (63) such that the outer rotor (20) and the inner rotor (30) are independently driven. The outer rotor (20) has forty eight outer magnets (24) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The inner rotor (30) has forty-two inner magnets (34) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The stator (60) has thirty-six I-shaped cores (61) and the coils (63).

Abstract: Provided is a washing machine motor capable of efficiently generating torque by improving a winding factor of coils with a relatively simple configuration. The washing machine motor (12) has an outer rotor (20), an inner rotor (30), and a stator (60). The outer rotor (20) and the inner rotor (30) share coils (63) of the stator (60), and a composite current is supplied to the coils (63) such that the outer rotor (20) and the inner rotor (30) are independently driven. The outer rotor (20) has forty eight outer magnets (24) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The inner rotor (30) has forty-two inner magnets (34) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The stator (60) has thirty-six I-shaped cores (61) and the coils (63).

Abstract: Disclosed herein is a washing machine. The washing machine includes a housing provided with an inlet for laundry disposed on a front surface thereof, a water tub provided inside of the housing and configured to store water, a drum rotatably provided inside of the water tub, a pulsator provided inside of the drum and configured to be rotated independently of the drum, a motor provided with a stator, and a first and second rotor connected to the drum and the pulsator, respectively, and at least one processor configured to apply a q-axis current to the stator to rotate the second rotor and configured to apply a d-axis current to the stator to rotate the first rotor based on a phase difference between the first rotor and the second rotor.

Abstract: The present disclosure includes a washing machine including an inner rotor and an outer rotor. An outer rotor and an inner rotor may be rotated in a synchronous rotation mode or a counter rotation mode by converting the number of magnetic poles of the outer rotor. When the outer rotor becomes inoperable when the outer rotor is set to the number of magnetic poles for performing the counter rotation mode, it is converted to the number of magnetic poles for performing the synchronous rotation mode while the outer rotor is stopped.

Abstract: Provided is a washing machine including: a stator including a coil; a rotor including a plurality of variable magnets each having a magnetic force variable, and rotatable with respect to the stator; a controller configured to control an energizing of the coil to increase or decrease a magnetic force of the variable magnet; and a plurality of position sensors each having a output voltage changed according to a magnetic flux of the variable magnet.

Abstract: A motor has a two rotors which are independently operated using a single inverter and without being supplied with a complex current. Further the motor is capable of shifting a rotation direction of each of two rotors by performing a magnetizing operation one time and reversing polarities of the shifting magnets when a mode of the motor is shifted from a synchronous mode in which the first rotor and the second rotor rotate in the same direction to a counter mode in which the first rotor and the second rotor rotate in opposite directions, and shifting the mode of the motor to the counter mode while the magnetizing operation is performed one time times and relative positions of the first rotor and the second rotor are changed when the first rotor and the second rotor inertially rotate in the synchronous mode.

Abstract: A washing machine capable of independently driving two rotors using one inverter in a simple configuration without supplying a composite current includes an outer rotor having a plurality of switching magnets arranged at intervals in the circumferential direction, and an inner rotor having a plurality of stationary magnets arranged to be radially arranged at intervals in the circumferential direction. When a magnetizing current is supplied to the coil of the stator, the magnetic pole of the switching magnet is inverted and the number of the poles of the outer rotor is switched.