摘要:
Communication grooves (44a to 44e) for communicating an outer circumferential side with an inner circumferential side of a stator core are formed at a contact face (42), that contacts the stator core, of a three-phase terminal fixing member (40). Furthermore, a retention part (45a, 45b) deeper than the communication grooves (44a to 44e) is formed. When resin is injected, air between the stator core and a stationary mold and between the stator core and a movable mold is discharged to the outside through the communication grooves (44a to 44e), and thus it is possible to suppress formation of voids between the stator core and the stationary mold and between the stator core and the movable mold. In addition, the resin expands by releasing its pressure at the retention part (45a, 45b), and thus it is possible to suppress the resin from flowing to the outside through the communication grooves (44a to 44e).
摘要:
Communication grooves (44a to 44e) for communicating an outer circumferential side with an inner circumferential side of a stator core are formed at a contact face (42), that contacts the stator core, of a three-phase terminal fixing member (40). Furthermore, a retention part (45a, 45b) deeper than the communication grooves (44a to 44e) is formed. When resin is injected, air between the stator core and a stationary mold and between the stator core and a movable mold is discharged to the outside through the communication grooves (44a to 44e), and thus it is possible to suppress formation of voids between the stator core and the stationary mold and between the stator core and the movable mold. In addition, the resin expands by releasing its pressure at the retention part (45a, 45b), and thus it is possible to suppress the resin from flowing to the outside through the communication grooves (44a to 44e).
摘要:
An object oil temperature Toil* is determined by adopting a gradual change process for an oil temperature Toil of a cooling lubricant oil, which is used to lubricate and cool down a motor and a transmission constructed to cause an output power of the motor to be subjected to speed change and to be transmitted to a driveshaft (step S180). A load factor R2 of the motor MG2 is subsequently set based on the set object oil temperature Toil* and a motor coil temperature Tcoil2 (step S190). A motor torque command Tm2* is set with the load factor R2 (step S200), and the motor is then driven and controlled to ensure output of a torque equivalent to the set motor torque command Tm2*. This arrangement drives and controls the motor with consideration of the oil temperature Toil of the cooling lubricant oil and thus ensures more adequate actuation of the motor, compared with a conventional drive control without consideration of the oil temperature Toil of the cooling lubricant oil.
摘要:
An object is to provide a rotor manufacturing method capable of reducing a rotor unbalance amount by controlling a magnet arrangement position in a rotor core and improving work efficiency when fixing a magnet to the rotor core by using resin. A lower surface (20b) of a rotor core (20) is arranged in a lower mold (30). A magnet (22) is arranged in a lower mold (30). A magnet (22) is contained in each of magnet containing holes (21) formed in the rotor core (20) in such a manner that a predetermined space is assumed between an upper surface (20a) of the rotor core (20) and an upper surface of the magnet (22). An upper mold (35) is arranged on the upper surface (20a) of the rotor core (20). The upper mold (35) and the lower mold (30) apply a pressure to the rotor core (20) and a molten resin is supplied with pressure from an internal diameter side via the predetermined space into the plurality of magnet containing holes (21) from respective cylinder (36) arranged in the upper mold (35). Thus, the magnets (22) are molded by resin (41) while pressing the magnets (22) toward the outer diameter side of the magnet containing holes (21).
摘要:
A stator includes a stator core, an insulating body, a coil, and a resin-molded product. The stator core includes a circumferentially side surface and an axially upper surface. The insulating body includes a side wall and an upper wall. The side wall covers the circumferentially side surface of the stator core. The upper wall covers the axially upper surface of the stator core. A radially inner side end surface of the upper wall is positioned farther toward a radially outer side than a radially inner side end surface of the side wall. The resin-molded product covers the coil.
摘要:
A rotary electric machine includes a stator core, a coil, and a molded portion. The stator core includes an annular yoke and a plurality of teeth. The teeth protrude radially inward from the annular yoke. The coils are wound around the teeth respectively. The coil includes a coil end that protrudes toward an axially outer side from an axially end surface of the stator core. The molded portion is a resin member that covers the coil end. The molded portion includes a first member. The first member includes a communication portion that communicates inside of the molded portion with outside of the molded portion.
摘要:
A rotating electrical-machine control system (10) is provided with: a rotating electrical-machine (20) comprising a rotor (26) further comprising permanent magnets (30, 31) that are divided into a dividing-number (n) of sections; an inverter circuit (18) that drives the rotating electrical-machine (20) by PWM control, using a carrier wave having a carrier frequency of f; a storage unit (60) that has stored therein a relationship file (62) that indicates the relationship between the dividing-number (n) of the magnets, the magnet temperature, and the carrier frequency (f); and a control apparatus (50). The control apparatus (50) comprises a condition acquisition processing unit (52) for acquiring the target magnet temperature, a rotational-speed acquisition processing unit (54) for acquiring the rotational speed of the rotating electrical-machine (20), and a carrier-frequency setup processing unit (56) for providing the dividing-number (n) of the magnets and the target magnet temperature to the storage unit (60) and conducting a search therein, and giving the corresponding carrier frequency (f) to an inverter control unit (48) as an instruction.