摘要:
A motor has a field magnet assembly comprising a plurality of magnets arranged in the circumferential direction of the field magnet assembly such that like polarities face each other, and a plurality of magnet spacers disposed between the magnets, respectively. Consequently, leakage of magnetic flux of the field magnet assembly is minimized, and torque is improved as compared to a conventional motor having the same stacking and capacity. In a washing machine with the motor, the magnets and the magnet spacers are integrally attached to the outer tub of the washing machine. Consequently, the size of the washing machine is minimized. The sizes of the inner and outer tubs are increased when the washing machine according to the present invention has the same size as the conventional washing machine. Consequently, the capacity of the washing machine is increased.
摘要:
A stator of a motor includes a yoke; a plurality of teeth located along a circumference of the yoke, each of the teeth including a neck, the necks being staggered with respect to a line extending along a circumferential direction of the yoke; and coils wound around the necks.
摘要:
A single-phase induction motor comprises a power consumption prevention device, which includes a current signal transfer element and a switching element. The switching element is turned on/off according to the current signal received from the current signal transfer element. The power consumption prevention device prevents current flow to a start device when the motor runs in normal mode, and thus avoids unnecessary power consumption by the start device when the motor runs in normal mode, thereby preventing a reduction in the efficiency of the single-phase induction motor due to the unnecessary power consumption.
摘要:
According to the disclosed motor, since the motor includes a rotor in which a plurality of core pieces and magnets are alternately arranged in the circumferential direction, magnetic flux of the magnets is prevented from flowing between the core pieces neighbored with each other in the circumferential direction and the leakage of the magnetic flux can be minimized. Since identical polarities of the magnets neighbored with each other in the circumferential direction face each other, the magnetic flux can be concentrated to the respective core pieces. Moreover, since the axial direction of the circumference of the core facing the stator in the circumferential direction is longer than the axial direction of other portions thereof, torque is increased and manufacturing costs are reduced.
摘要:
A single-phase induction motor includes a main winding, an auxiliary winding, a run capacitor, and a subsidiary start device. The auxiliary winding is configured such that the number of turns of the auxiliary winding, through which a current flows, varies according to the operating mode of the motor. When the motor starts, the number of turns of the auxiliary winding, through which a current flows, is reduced, thereby increasing the start efficiency of the motor. When the motor runs in normal mode, the number of turns of the auxiliary winding, through which a current flows, is increased, thereby increasing the operational efficiency of the motor.
摘要:
A motor includes a stator and a rotor rotated due to the interaction between the rotor and the stator. Since overhangs are protruded only from the circumference of a rotor core of the rotor facing the stator in the axial direction, manufacturing costs for improving performance and core loss of the stator are minimized. Additionally, since the rotor core is manufactured by iron powder metallurgy, the rotor core is conveniently designed.
摘要:
A stator of a motor having various shapes and capable of minimizing the manufacturing costs. At least teeth are manufactured by the iron powder metallurgy method. In order to obtain the overhang effect, the height of a tip of each tooth is lower than the height of a rotor and the height of a yoke is higher than the height of a tip of each tooth so as to minimize the core loss of the yoke. Since, in order to minimize the end coil, the height of a neck of each tooth is gradually higher as running from the sides to the central portion in the circumferential direction, costs for manufacturing a motor can be minimized and sufficient efficiency can be obtained.
摘要:
The present invention provides a novel process for highly selective preparation of 2,6-dialkyltetralin, a key precursor for 2,6-dimethylnaphthalene (2,6-DMN), which does not require an extra step for purifying various isomers obtained from the conventional processes for 2,6-DMN. The present invention is advantageous to improve the synthetic yield, to simplify the operation and thus to reduce the production cost, since different starting materials and different pathways are exploited and thus the additional steps are not necessary.
摘要:
The data structure includes a navigation area of a computer readable medium storing navigation data associated with a data stream representing a portion of at least one reproduction path. The navigation data includes indication information, and the indication information indicates whether the data stream represents multiple reproduction paths or the data stream represents a single reproduction path. If the indication information indicates the data stream represents multiple reproduction paths, the navigation data includes path number information and an indicator associated with each reproduction path. The path number information identifies a number of the multiple reproduction paths, and each indicator indicates a file associated with the associated one of the multiple reproduction paths.
摘要:
The present invention relates to method and apparatus of recording/reproducing a non-MPEG formatted digital TV broadcast signal on/from a writable medium. The present recording method, when a digital TV broadcast signal composed of DirecTV transport packets is received, collects DirecTV transport packets as adding receiving time information to each packet optionally, slices the collected packets into 184-byte stream pieces, composes a Transport Packet defined in MPEG standard with each piece, and writes a series of Transport Packets on a recording medium. The present method can record a non-MPEG type of transport stream in MPEG recording format and reproduce the recorded transport stream to original DirecTV transport stream, whereby an applicability of a digital recorder is improved.