摘要:
Coil ends (19) of a stator coil (18) having a cross sectional shape like a flat rectangular are constructed by first portions extending from an outer layer of a pair of slots apart from predetermined pitches in an axial direction and slanting in a circumferential direction, second portions extending from an inner layer of the other of the pair of the slots in the axial direction and slanting in the circumferential direction, and third portions positioned at ends of the coil ends (19) in the axial directions, elongated in the radial direction and connected to ends of the first and second portions in the axial direction, and in all of the first, second and third portions, long sides (300) of the cross sectional flat rectangular view of the stator coil (18) are arranged to be substantially in parallel with an end surface of the stator whereby the coil ends are lowered; and the coils are arranged without a gap.
摘要:
A flat surface portion extending substantially parallel to a shaft is formed in a root portion of a claw-shaped magnetic pole such that between adjacent claw-shaped magnetic poles, the end portion of the tooth and the two claw-shaped magnetic poles do not overlap simultaneously in the radial direction.
摘要:
A rotor for a dynamo-electric machine permits higher manufacturing efficiency. The rotor is equipped with a plurality of magnetic portions which are provided between adjacent triangular magnetic poles in an orientation that reduces the leakage of the magnetic flux between the aforesaid triangular magnetic poles. The magnetic portion are joined to at least one of a first flange and a second flange.
摘要:
A capacitor for a car AC generator which improves assembly work efficiency and reduces a vibration load on the connection portions of the element terminals of the capacitor element and the terminals of the resin part, wherein a resin part installed in the inside space of a generator case has a one-end open bottomed cylinder-like container portion and resin side terminals around the opening portion of the container portion, a capacitor element for absorbing a surge generated by the voltage control of a voltage regulator is inserted into the inside of the container portion, the element side terminals of the capacitor element are connected to the respective resin side terminals on an insertion side, and the capacitor element is supported in the container portion by a solidified resin which is charged into a gap between the container portion and the capacitor element.
摘要:
A motor vehicle AC generator including a rectifier in which a direct-fitting surface of a negative-polarity side cooling plate is brought closely into contact with a casing direct-fitting surface of a rear bracket and is fixedly tightened with a fitting screw with respect thereto. In addition, a silicone sheet is interposed between the cooling plate and the rear bracket in a state of being located within an intervening member accommodating groove made in the direct-fitting surface of the cooling plate so as to cover an area lying light under a diode except the peripheral bearing surface of the fitting screw. This construction forms an electric conducting portion at which the direct-fitting portion of the cooling plate and the casing direct-fitting surface directly come into contact with each other and further forms a thermal conducting portion at which the direct-fitting surface of the cooling plate and the casing direct-fitting surface come into contact with each other in a state where the silicone sheet is interposed therebetween.
摘要:
A rotor for an automotive alternator comprises a cylindrical bobbin having a cylindrical portion, a pair of first and second annular flange portions projecting perpendicularly from both ends of the cylindrical portion, a recessed groove disposed at an angle to the radial direction in the inner wall of the first flange portion, and an anchor portion disposed on an outer circumferential portion of the first flange portion in close proximity to the outer circumferential end of the recessed groove, the bobbin being fitted over the base portions of the pair of field cores; and a field winding wound a predetermined number of turns into multiple layers on the cylindrical portion of the bobbin, wherein the field winding has a flat shape, the starting end of the field winding being wound around the anchor portion and housed in the recessed groove, then drawn from the inner circumferential end of the recessed groove onto the outer circumferential surface of the cylindrical portion of the bobbin, and additionally taken across the outer circumferential surface of the cylindrical portion of the bobbin from the first flange portion to the second flange portion, and thereafter being wound onto the outer circumferential surface of the cylindrical portion of the bobbin at an angle relative to a plane which perpendicularly intersects the axial center of the bobbin.
摘要:
A power supply system equipped with a power generating unit including an alternating-current generator and a rectifier for rectifying the generated output of the alternating-current generator. In addition, a switching relay is provided between a low-voltage load and a high-voltage load for selectively supplying the generated output from the power generating unit to one of the low-voltage load and high-voltage load. A field current control unit controls a field current flowing into a field winding of an AC generator and a high-voltage load control unit controls a switching operation of the switching relay and further controls the field current control unit in accordance with a state of the high-voltage load. The high-voltage load control unit operates the power generating unit through the field current control unit in switching between the low-voltage load and the high-voltage load so that the generated output is applied to the switching relay, thus removing oxide films on a surface of the switching relay to ensure the conductivity in the switching relay.