摘要:
The dynamo-electric machine includes: a stator (2) having a stator winding (5) wound around a stator core (4); a rotor (3) having a rotor core (7) and a rotating shaft (8) rotatably retaining the rotor core (7); and a housing (11) rotatably retaining the rotor (3) to the stator (2). The rotor (3) has a cooling hole formed in the rotor core (7) in a rotating shaft direction of the rotor (3), and a fan (50) arranged at one end of the rotating shaft (8). The housing (11) has ventilation holes (57, 58) formed in one end and the other end in an axial direction of an outer peripheral surface thereof to allow the inside and the outside of the housing (11) to communicate with each other, a ventilation passage (30) connecting these ventilation holes outside the housing (11), and an opening/closing member (60) arranged in a discharge port to the atmosphere of the ventilation passage.
摘要:
Object Not only inside air but also coil end part of a stator 2 are prevented from becoming high in temperature, and cooling performance is improved. Solution to Problem In order to achieve the object described above, a rotating electric machine 1 of the present invention is made up of a stator 2 and a rotor 3 oppositely arranged through the intervention of predetermined air gap at the inner diameter side of the stator 2; the stator 2 has a stator iron core 4, a plurality of stator slots 12 that extend in the axial direction and are formed in the circumferential direction at predetermined intervals at the inner diameter side of the stator iron core 4, and stator coils attached in the plurality of stator slots 12; the rotor 3 has a rotor iron core 7, a plurality of rotor slots 6 that extend in the axial direction and are formed in the circumferential direction at predetermined intervals at the outer circumference side of the rotor iron core 7, and magnetic field members inserted in the rotor slots 6; and the rotor iron core 7 has an outside air ventilation hole 17a for ventilating air outside the machine and an inside air ventilation hole 16 for ventilating air inside the machine.
摘要:
Object Not only inside air but also coil end part of a stator 2 are prevented from becoming high in temperature, and cooling performance is improved. Solution to Problem In order to achieve the object described above, a rotating electric machine 1 of the present invention is made up of a stator 2 and a rotor 3 oppositely arranged through the intervention of predetermined air gap at the inner diameter side of the stator 2; the stator 2 has a stator iron core 4, a plurality of stator slots 12 that extend in the axial direction and are formed in the circumferential direction at predetermined intervals at the inner diameter side of the stator iron core 4, and stator coils attached in the plurality of stator slots 12; the rotor 3 has a rotor iron core 7, a plurality of rotor slots 6 that extend in the axial direction and are formed in the circumferential direction at predetermined intervals at the outer circumference side of the rotor iron core 7, and magnetic field members inserted in the rotor slots 6; and the rotor iron core 7 has an outside air ventilation hole 17a for ventilating air outside the machine and an inside air ventilation hole 16 for ventilating air inside the machine.
摘要:
To prevent demagnetization of a permanent magnet synchronous rotating machine, a rotating machine control device according to the present invention is a rotating machine (5) control device comprising: a power converter having a switch part (Sup to Swn) on each of a positive side and a negative side for each phase; and short circuit detection unit (36) for detecting a short circuit of the switch part (Sup to Swn), wherein a command to turn on positive-side switches and negative-side switches of a plurality of phases of the switch part (Sup to Swn) is issued in the case where the short circuit detection unit (36) detects the short circuit.
摘要:
A rotor (8) is deployed such that the rotor (8) becomes coaxially rotatable with a stator (2), A shaft (10) is fixed onto the axis of a rotor iron-core (9). 1-pole constituting magnet slots (11) are deployed into V-character pattern along an outer circumference portion of the rotor iron-core (9), Permanent magnets (12) are embedded into the magnet slots (11). For the 1 pole, the 2 pieces of same-polarity permanent magnets (12) are embedded into the V-character pattern. The configuration of each embedded permanent magnet (12) is designed as follows: From the thickness of the permanent-magnet edge portion on the inner-diameter side of the rotor iron-core (9), which becomes the center of the V-character pattern, the thickness of the permanent magnet (12) gradually increases toward the outer-diameter side of the rotor iron-core (9), which become the right and left edge portions of the V-character pattern. Simultaneously, curved lines (13) are provided on both edge portions of the permanent magnet (12).
摘要:
To prevent demagnetization of a permanent magnet synchronous rotating machine, a rotating machine control device according to the present invention is a rotating machine (5) control device comprising: a power converter having a switch part (Sup to Swn) on each of a positive side and a negative side for each phase; and short circuit detection unit (36) for detecting a short circuit of the switch part (Sup to Swn), wherein a command to turn on positive-side switches and negative-side switches of a plurality of phases of the switch part (Sup to Swn) is issued in the case where the short circuit detection unit (36) detects the short circuit.
摘要:
A permanent magnet type rotary electric machine has a rotor having a rotor core and permanent magnets buried into the rotor core by being incorporated into respective permanent magnet slots. The permanent magnet slot per one pole is divided at least into four slots along an outer circumferential direction in the rotor core, and in respective rest core-portions between adjacent divided permanent magnet slots in the rotor core, a width of a first rest core-portion at the middle of each pole and a width of a second rest core-portion between adjacent poles of different polarities are formed larger than that of the others.