Abstract:
An electric motor-generator and an engine are linked using a first belt that is looped around a crank pulley that is mounted to a crank shaft and a one-way clutch pulley that is mounted to a rotating shaft. An electronic control unit drives the electric motor-generator as an electric motor and drives the compressor by the electric motor-generator if engine speed is less than or equal to a predetermined value.
Abstract:
A rotary electric machine includes a stator in which a plurality of armatures each have a coil formed by a winding wire wound in plural layers around bobbins mounted to a magnetic pole tooth, which are disposed annularly on an inner circumference of a cylindrical frame. The coil is formed by the winding wire being wound with a constant feed pitch in parallel with slots of the bobbins in plural layers. The winding wire forming a first layer of the coil is shifted by half the feed pitch between a left side and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of a stacked iron core.
Abstract:
A center frame is fastened to a first bracket and a second bracket such that a first mated protrusion and a second mated protrusion are fitted together with a first mated recess portion and a second mated recess portion so as to be mated. O rings are disposed annularly so as to be held between an end surface of the first bracket and a first axial end surface of the center frame, and between an end surface of the second bracket and a second axial end surface of the center frame on an opposite side from outer circumferential inner wall surfaces of the first mated recess portion and the second mated recess portion.
Abstract:
A rotary electric machine includes a rotor, a stator having coils wound to surround the rotor, a cylindrical ring member fixedly mounted on the stator by shrinkage fitting, and a frame disposed on the outside of the ring member with a gap created in between. The distance of the gap varies as a result of thermal expansion of the stator and the ring member. An outer surface of the ring member goes into contact with the frame when the stator and the ring member thermally expand, whereby the stator and the ring member are efficiently cooled.
Abstract:
The concentrated winding coil is mounted onto a tooth such that a coil end portion is housed inside a concave space that is formed by the trunk portion and first and second guide portions at two axial ends of the tooth. Third cover portions of an insulating sheet that is disposed on two circumferential sides of the tooth are folded over so as to overlap with each other and extend so as to cover the coil end portion of the concentrated winding coil, and a second leader line that projects outward from a radially inner end portion of the concentrated winding coil is bent and led radially outward parallel to the coil end portion that is covered by the third cover portions.
Abstract:
Provided is a power supply device including: a magneto generator (1), which includes: a rotor including a magnet forming a magnetic field; and a stator which generates an alternating current in stator windings by rotation of the rotor; a rectifying unit (3) which rectifies the alternating current generated by the magneto generator to a direct current; a variable transformation-ratio direct current voltage transformer (40) which transforms an output voltage of the direct current of the rectifying unit to a voltage between input terminals of an electrical load (2) to which electric power is supplied; and a voltage control unit (5) which controls a transformation ratio of the variable transformation-ratio direct current voltage transformer in accordance with at least one of an operating state signal regarding the rotation of the rotor of the magneto generator and an electrical load state signal of the electrical load.
Abstract:
Insulators are respectively disposed such that longitudinal directions of trunk portions are oriented in a radial direction of teeth, and so as to place bottom surfaces of the trunk portions alongside two axial end surfaces of the teeth, concentrated winding coils are configured by winding conductor wires so as to be wound in multiple layers around the teeth so as to pass through a concave space that is formed by the trunk portions and first and second flange portions at two axial ends of the teeth, the second flange portion is disposed on an end surface of a core back of a stator core, and a temperature detecting element is installed by being inserted into an element insertion aperture that is formed on the second flange portion so as to be able to detect a temperature of a coil end of the concentrated winding coils.
Abstract:
The rotary electric machine includes a rotor, and a stator including an stator core that is formed by laminating and integrating magnetic steel plates, and concentrated winding coils that are mounted to respective teeth, the stator being disposed so as to surround the rotor. Bobbins each including a trunk portion and first and second guide portions that are disposed so as to protrude from two longitudinal ends of an upper surface of the trunk portion are disposed so as to place bottom surfaces of the trunk portions alongside two axial end surfaces of the teeth. The concentrated winding coils are configured by winding a conductor wire a predetermined number of times around the teeth so as to pass through a concave space that is formed by the trunk portions and the first and second guide portions at two axial ends of the teeth.