摘要:
An alternator has stator winding including a number of stator winding sub-portions each of which is constituted by insulated strands of wire wound onto the stator core so as to be housed in different layers relative to a slot depth direction within slots a predetermined number of slots apart, the different layers within the slots the predetermined number of slots apart being joined in series outside the slots to constitute coil ends; each of the coil ends is formed into a connection pattern comprising a pair of root portions extending outwards from the slots the predetermined number of slots apart, a pair of inclined portions bent over and extending circumferentially from the root portions and a connecting portion connecting ends of the pair of inclined portions to each other; coil end groups of the stator winding are constructed by arranging the coil ends formed into the connection pattern neatly into rows circumferentially at both axial ends of the stator core, and the coil ends in at least one of the coil end groups are arranged in rows circumferentially such that the inclined portions of adjacent coil ends are in close proximity to each other without gaps.
摘要:
A stator core which joint vibration in a radial direction and can suppress a vibration mode and a production process therefor. The stator core has a plurality of welded portions formed on the exterior or interior side of the cylinder in the same direction diagonal to the lamination direction of the metal sheet from the upper end to the lower end of the cylinder.
摘要:
A material of the stator core is different from a material of the housings, in a state where one end portion in the axis direction of the stator core is contacted to the first housing, and the other end portion in the axis direction of the stator core is contacted to the second housing; and a neighboring portion of a contact portion, at which the first housing is contacted to the stator core, and another neighboring portion of a contact portion, at which the second housing is contacted to the stator core, are connected by a connecting component in the axis direction, of which material is the same as a material of the stator core, whereby the first housing and the second housing are connected each other; and the first housing and the second housing face each other in a state where a gap intervenes between both housings.
摘要:
A method of manufacturing a rotor for a magnet type rotating electrical machine includes the steps of: cutting and laminating pieces of the core of the rotor, to thereby form a core (3); mounting the core (3) on a rotating jig (10); forming a magnet piece (2p) into a predetermined shape by sintering; mounting a predetermined number of the magnet pieces (2p) on a regulating jig (20); pressing the magnet pieces (2p) by the regulating jig (20) while rotating the core (3) by the rotating jig (10), to thereby mount the magnet pieces (2p) on the core (3); and adjusting an axial position of the magnet piece (2p) so that an axial end surface of the core (3) and an axial end surface of the magnet piece (2p) are aligned with each other.
摘要:
A driving-device-integral-type rotary electric machine includes a driving device 8 having a first inverter 27a and a second inverter 27b, which can supply power to stator windings 5a and 5b of the rotary electric machine 2, and the first inverter 27a and the second inverter 27b are arranged and installed in a heat sink 19, in a state where the inverters are linearly symmetrical with respect to an axis X of the rotary electric machine 2, and the heat sink is configured in such a way that at least a heat capacity of a portion with respect to the first inverter 27a is roughly equal to a heat capacity of a portion with respect to the second inverter 27b.
摘要:
A motor drive control apparatus 30, on which a switching element 73 for performing drive control of the motor 10 is mounted, includes: a heat sink 50 placed on the front side or rear side of the motor; and a housing 40 that is coupled to the heat sink and couples the heat sink to the frame or that covers the switching element mounted on the heat sink, and wherein an abutment surface 110 between the housing and the heat sink is located on a single plane intersecting with the direction of the rotation axis of the motor, and screw holes 42 and 52 for coupling the frame, the heat sink and the housing to each other are provided such that the positions in the circumferential direction of the screw holes 42 and 52 correspond to each other.
摘要:
A power semiconductor module (100) includes: an electrode plate (2) in which a body portion (2a) and an external connection terminal portion (2b) are integrally formed, and the body portion (2a) is arranged on the same flat surface; a semiconductor chip (1) mounted on one surface (mounting surface) (2c) of the body portion (2a); and a resin package (3) in which the other surface (heat dissipation surface) (2d) of the body portion (2a) is exposed, and the body portion (2a) of the electrode plate (2) and the semiconductor chip (1) are sealed with resin. The heat dissipation surface (2d) is the same surface as the bottom (3a) of the resin package (3); and consequently, heat dissipation properties and reliability are improved and a reduction in size can be achieved.
摘要:
In a permanent magnet type concentrated winding motor, the number of magnetic poles is M, a stator Sr has an N number of teeth T around which coils are concentratedly wound and which are circumferentially arranged at equal intervals, M is equal to (18±4)n and N is equal to 18n, an armature winding AW has an m number of parallel circuits, and a 1-phase circuit of the parallel circuits is configured to have a 6n/m number of coils connected in series with each other.
摘要:
To obtain a drive unit integrated rotating electrical machine that makes it easier to connect power circuits and achieves not only excellent vibration resistance but also excellent heat releasing properties.Means for SolutionA drive unit integrated rotating electrical machine has a motor, a drive unit driving the motor under control and provided with power switching elements and conductors passing a current to the power switching elements, and a heat sink cooling the drive unit, which are combined into one unit. The drive unit integrated rotating electrical machine is characterized in that: the power switching elements are molded and formed into mold modules in a state in which terminals thereof are exposed; the conductors are insert-molded in a frame in a state in which terminals thereof are exposed; and the exposed terminals of the mold modules are connected to the exposed terminals of the insert-molded conductors and the mold modules are firmly fixed to the heat sink.