摘要:
Provided is a permanent magnet type motor including: a rotor including a rotor core and a plurality of permanent magnets; a conducting circuit including a first electric conductor extending in an axial direction of the rotor and being disposed between permanent magnets in a circumferential direction of the rotor and a second electric conductor for connecting the first electric conductors electrically; and a stator disposed so as to be opposed to the rotor, including a stator core and an armature winding. A rotation angle is detected by measuring current flowing in the armature winding. The stator core is formed to have a shape in which, a slot pitch is defined by ρs=(2×π×Rs)/Ns, where an inner radius of the stator is represented by Rs and a number of slots is represented by Ns, a value Wsn obtained by dividing a slot opening width Ws by the slot pitch ρs satisfies “0.08≦Wsn”.
摘要翻译:提供一种永磁式电动机,其包括:转子,包括转子芯和多个永磁体; 导体电路,包括沿着转子的轴向延伸并且在转子的周向上设置在永磁体之间的第一导电体和用于电连接第一导电体的第二电导体; 以及与转子相对设置的定子,包括定子芯和电枢绕组。 通过测量在电枢绕组中流动的电流来检测旋转角度。 定子铁芯的形状是这样一种形状:槽间距由&rgr; s =(2×&pgr;×Rs)/ Ns定义,其中定子的内半径由Rs表示,槽数为 通过用Ns表示,通过将槽开口宽度Ws除以槽间距&rgrs而获得的值Wsn满足“0.08≦̸ Wsn”。
摘要:
In a permanent magnet type electric rotating machine, a rotor is arranged in a Halbach array, a main magnet magnetized in the radial direction is formed of a rare-earth magnet and an auxiliary magnet magnetized in the circumferential direction is formed of a ferrite magnet, and a gap is provided between the main magnet and the auxiliary magnet; as a result, the quantity of utilized rare-earth magnets is reduced without the output torque of the electric rotating machine being decreased.
摘要:
A rotational angle detection device for a permanent magnet dynamo-electric machine, including: a stator (10); a rotor (20); and a conductive circuit that includes first conductors (1a1, 1a2) extending in a direction parallel to a rotational axis of the rotor and being disposed in at least two places in a circumferential direction of the rotor, and second conductors (1b1, 1b2) for electrically interconnecting the first conductors. In this case, the first conductors are each disposed within a range of an electrical angle between −45° and +45° in the circumferential direction with a magnetic pole center being set as a reference, and the conductive circuit is disposed in at least one place in the circumferential direction, and the rotational angle detection device further comprising a detection means for detecting a rotational angle of the rotor by measuring a value of a current flowing through the armature winding.
摘要:
Provided is a permanent magnet type motor including: a rotor including a rotor core and a plurality of permanent magnets; a conducting circuit including a first electric conductor extending in an axial direction of the rotor and being disposed between permanent magnets in a circumferential direction of the rotor and a second electric conductor for connecting the first electric conductors electrically; and a stator disposed so as to be opposed to the rotor, including a stator core and an armature winding. A rotation angle is detected by measuring current flowing in the armature winding. The stator core is formed to have a shape in which, a slot pitch is defined by ρs=(2×π×Rs)/Ns, where an inner radius of the stator is represented by Rs and a number of slots is represented by Ns, a value Wsn obtained by dividing a slot opening width Ws by the slot pitch ρs satisfies “0.08≦Wsn”.
摘要翻译:提供一种永磁式电动机,其包括:转子,包括转子芯和多个永磁体; 导体电路,包括沿着转子的轴向延伸并且在转子的周向上设置在永磁体之间的第一导电体和用于电连接第一电导体的第二电导体; 以及与转子相对设置的定子,包括定子芯和电枢绕组。 通过测量在电枢绕组中流动的电流来检测旋转角度。 定子铁芯的形状是这样一种形状:槽间距由&rgr; s =(2×&pgr;×Rs)/ Ns定义,其中定子的内半径由Rs表示,槽数为 通过用Ns表示,通过将槽开口宽度Ws除以槽间距&rgrs而获得的值Wsn满足“0.08≦̸ Wsn”。
摘要:
A rotor of a rotary machine includes a rotary shaft, a rotor core fixed to a circumferential surface of the rotary shaft, a plurality of permanent magnets arranged on a circumferential surface of the rotor core at specific intervals along a circumferential direction thereof, conducting circuits arranged to surround the permanent magnets, and magnetic material pieces arranged on outer surfaces of the individual permanent magnets. Each of the conducting circuits includes a pair of first conductor sections arranged between magnetic poles formed by the adjacent permanent magnets and a pair of second conductor sections electrically connecting the first conductor sections.
摘要:
A rotational angle detection device for a permanent magnet dynamo-electric machine, including: a stator (10); a rotor (20); and a conductive circuit that includes first conductors (1a1, 1a2) extending in a direction parallel to a rotational axis of the rotor and being disposed in at least two places in a circumferential direction of the rotor, and second conductors (1b1, 1b2) for electrically interconnecting the first conductors. In this case, the first conductors are each disposed within a range of an electrical angle between −45° and +45° in the circumferential direction with a magnetic pole center being set as a reference, and the conductive circuit is disposed in at least one place in the circumferential direction, and the rotational angle detection device further comprising a detection means for detecting a rotational angle of the rotor by measuring a value of a current flowing through the armature winding.
摘要:
In a permanent magnet type electric rotating machine, a rotor is arranged in a Halbach array, a main magnet magnetized in the radial direction is formed of a rare-earth magnet and an auxiliary magnet magnetized in the circumferential direction is formed of a ferrite magnet, and a gap is provided between the main magnet and the auxiliary magnet; as a result, the quantity of utilized rare-earth magnets is reduced without the output torque of the electric rotating machine being decreased.
摘要:
A rotor of a rotary machine includes a rotary shaft, a rotor core fixed to a circumferential surface of the rotary shaft, a plurality of permanent magnets arranged on a circumferential surface of the rotor core at specific intervals along a circumferential direction thereof, conducting circuits arranged to surround the permanent magnets, and magnetic material pieces arranged on outer surfaces of the individual permanent magnets. Each of the conducting circuits includes a pair of first conductor sections arranged between magnetic poles formed by the adjacent permanent magnets and a pair of second conductor sections electrically connecting the first conductor sections.