摘要:
A stator winding of an alternator has two poly-phase windings. Each of phase coils, e.g., X-phase coil in one of poly-phase windings, is provided by a continuous wire. The phase coil is accommodated in corresponding slots in a layered manner along a radial direction, therefore, the phase coil forms layers in the slots and may be identified as location of layers in the slots. The phase coil has a plurality of crossing portion that links the layers in different slots distanced by a magnetic pole pitch, and two output portions extending beyond the stator winding. In the phase coil, only one crossing portion is formed to link the same layers in different slots, and the other crossing portions are formed to link different layers in different slots.
摘要:
A stator assembly for an electric machine includes a metal core with windings installed into slots of the core. A pair of conductors of a continuous form is used for each phase of the machine. The windings are interlaced to alternate between radially inner and outer positions in each adjacent winding slot of the stator core.
摘要:
A direct current brushless motor of a radial air-gap includes a rotor having a rotation shaft rotated in a magnetic conducting tube of the stator. The magnetic conducting tube has an outer wall combined with a coil seat. The coil seat has two ends respectively mounted with an upper pole plate and a lower pole plate. Each of the upper pole plate and the lower pole plate has a periphery having upper pole faces and/or lower pole faces respectively extended upward and downward therefrom. The pole faces of the upper pole plate and the lower pole plate are arranged in a staggered manner. The pole faces encompassing the coil seat are formed with larger openings for allowing pull out of a distal end of a coating wire of the coil seat.
摘要:
A dynamo-electric machine includes: a stator having an iron core constructed by linking outer peripheral portions of a plurality of teeth arranged at equiangular pitches in a circumferential direction by an annular core back, and a plurality of coils wound around the teeth; and a rotor constructed by a plurality of magnetic poles composed of magnetic members arranged at equiangular pitches in the circumferential direction, the magnetic poles being formed into one piece by a base portion composed of a nonmagnetic member, and the rotor being rotatably disposed around an axis of the stator and adjacently to an inner periphery of the stator. The plurality of coils are composed of a plurality of first coils that are excited by alternating current and a plurality of second coils that are excited by direct current, each of the coils being wound around each of the teeth without involving any other teeth.
摘要:
A stator of an alternator for use in an automobile vehicle is composed of a cylindrical stator core and a stator coil disposed in slots of the stator core. The stator coil is formed by connecting plural U-shaped conductor segments, each segment including a pair of conductor portions and a turning portion connecting the pair of conductor portions. The conductor portions are inserted into the stator slots, and turning portions form a coil end extending to an axial side of the stator core. Only the turning portion of the conductor segment has a round cross-section, while other portions have a flat rectangular cross-section. Alternatively, the stator coil may be formed from a continuous conductor wire which has a round cross-section only at turning portions and a flat rectangular cross-section at other portions. The stator coil is easily curved at the turning portions having a round cross-section without damaging an insulator covering the coil, and the conductor portions having a flat rectangular cross-section improve a space factor in the stator slots, thereby increasing the alternator output.
摘要:
A turbine electric power generator is provided with winding slots and sub-slots of a rotor; rotor windings having conductors and insulation materials laminated alternately thereon; wedges; and radial ventilation flow passages communicating the sub-slots with through holes of the wedges. In this turbine electric power generator, a projection is provided on an inner face of the radial ventilation flow passages, and the projection height is changed at a rotational axial position. In this manner, there can be provided a gas cooling type rotary electric power generator for turbine with its high cooling performance and high reliability at a low cost.
摘要:
Front-end and rear-end coil ends constituting front-end and rear-end coil end groups are formed into a connection pattern composed of pairs of root portions extending outwards from pairs of slots 15a three slots apart, pairs of inclined portions bent from each of the pairs of root portions and extending in a circumferential direction, and pairs of joining portions connecting together end portions of the pairs of inclined portions. Inclined portions positioned on an inner circumferential side of the coil ends are inclined forwards relative to a rotational direction of fans.
摘要:
In a vehicle rotary electric machine, a stator core has a plurality of slots accommodating a plurality of conductors forming a plurality of phase windings. The phase winding includes a plurality of parallel-connected winding sections. Each of the winding sections is formed of a plurality of series-connected conductors that is distributed to the plurality of slots neighbor to each other.
摘要:
A stator core of rotary electric machine has a plurality of slots. The slots are fully occupied by a stator winding to provide maximum output. On the other hand, to provide reduced output, empty unused slots are located alternately along a circumferential direction. The stator winding is only accommodated in the fully occupied slots. Therefore, rotary electric machines having different performances are provided without a drastic design change of the stator core.
摘要:
A contact-disk system is described having a rotatable contact disk and a plurality of contact elements, the contact disk having a plurality of paths and each contact element being assigned to one path. Two selected contact elements of the plurality of contact elements are always at the same electrical potential and glide on the same path. A windshield-wiper motor and a method for controlling a windshield-wiper motor are also described.