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    • 4. 发明授权
    • Magnet rotor for synchronous motor
    • 同步电机用磁铁转子
    • US5734216A
    • 1998-03-31
    • US564623
    • 1995-11-29
    • Hiyoshi YamadaShigenori KinoshitaTakao YanaseKenji EndoHiroyuki Hirano
    • Hiyoshi YamadaShigenori KinoshitaTakao YanaseKenji EndoHiroyuki Hirano
    • H02K1/27H02K15/03H02K21/00
    • H02K1/278H02K1/2733H02K15/03
    • A magnet rotor for a synchronous motor includes a yoke formed of a magnetic material. A generally cylindrical permanent magnet is disposed around the yoke magnet and has N and S poles alternately located in the circumferential direction of the permanent magnet. An adhesive is filled in the clearance between the outer peripheral surface of the yoke and the inner peripheral surface of the permanent magnet. The adhesive is hardened at a hardening temperature, which is around a maximum temperature encountered during operation of the motor to accomplish bonding between the yoke and the permanent magnet. The clearance between the yoke and the permanent magnet has a dimension L given by the following formula: L.gtoreq.(E.times..DELTA.L) / .sigma.s where E is a tensile elastic modulus of the adhesive; .DELTA.L is a change amount of the clearance upon thermal expansion or contraction; and .sigma.s is a tensile stress applied to the adhesive.
    • 用于同步电动机的磁体转子包括由磁性材料形成的磁轭。 一般为圆柱形的永久磁铁围绕轭磁铁设置,并且N和S极交替地位于永磁体的圆周方向上。 在磁轭的外周面和永磁体的内周面之间的间隙中填充有粘合剂。 粘合剂在固化温度下硬化,硬化温度约为马达操作期间遇到的最大温度,以实现轭和永磁体之间的粘合。 轭和永磁体之间的间隙具有由下式给出的尺寸L:L> / =(Ex DELTA L)/ sigma其中E是粘合剂的拉伸弹性模量; DELTA L是热膨胀或收缩时间隙的变化量; sigma是施加到粘合剂上的拉伸应力。
    • 5. 发明授权
    • Electric system for an electric vehicle
    • 电动汽车电气系统
    • US5466998A
    • 1995-11-14
    • US210021
    • 1994-03-18
    • Shigenori KinoshitaTakao YanaseKoetsu Fujita
    • Shigenori KinoshitaTakao YanaseKoetsu Fujita
    • B60L7/22B60L9/18B60L11/18H02P5/40G01R27/26
    • B60L7/22B60L2270/142
    • In an electric system for an electric vehicle, DC power of a main battery is converted into AC power by an inverter which has a power regenerative function. At startup, the system charges an input smoothing capacitor on the DC side of the inverter through an initial charging circuit with an initial charging switch and resistor. A main circuit switch that can stop current is connected between the main battery and the inverter. A rheostatic braking circuit with a rheostatic braking switch and a braking resistor is connected to the DC input side of the inverter for rheostatic breaking when required. Rheostatic braking takes over after regenerative braking when the main battery loses its power absorption capability, with the main circuit switch off. Semiconductors can be used as switches, and can be placed on a cooling body or modularized. Low-noise wires can be used to reduce noise.
    • 在电动汽车的电气系统中,通过具有电力再生功能的逆变器将主电池的直流电力转换为交流电力。 启动时,系统通过初始充电电路和初始充电开关和电阻对变频器直流侧的输入平滑电容充电。 主电池和逆变器之间连接有可以停止电流的主电路开关。 具有变阻器制动开关和制动电阻器的变阻器制动电路在需要时连接到变频器的直流输入侧用于变阻器断开。 当主电池失去其吸收能力,主电路关闭时,变频制动在再生制动后接管。 半导体可以用作开关,也可以放置在冷却体上或模块化。 可以使用低噪声电线来降低噪音。
    • 6. 发明授权
    • Circuit for driving permanent-magnet synchronous motor using
proportional controller
    • 使用比例控制器驱动永磁同步电机的电路
    • US5656911A
    • 1997-08-12
    • US575624
    • 1995-12-20
    • Tomoharu NakayamaKoetsu FujitaShigenori KinoshitaTakao YanaseMasahiko HanazawaShinichiro KitadaToshio KikuchiTakeshi Aso
    • Tomoharu NakayamaKoetsu FujitaShigenori KinoshitaTakao YanaseMasahiko HanazawaShinichiro KitadaToshio KikuchiTakeshi Aso
    • H02P21/00H02K21/12H02P7/06H02P27/04H02P5/402
    • H02P21/06H02P21/0089H02P21/22
    • A driving device controls a permanent-magnet synchronous motor having a permanent magnet in its rotor using a voltage-type inverter supplying drive power for the synchronous motor, makes the torque of the synchronous motor and the d-axis current flowing in the synchronous motor in the direction of the magnetic flux generated by the permanent magnet approach their own command values, and performs weakening field control by decreasing the d-axis current. To perform the above described control without complicated d-axis current command value operations or temperature amendments to motor constants, the driving device includes a proportional controller for outputting a d-axis signal proportional to the deviation between a d-axis current detection value and a d-axis current command value for the motor. A d-axis voltage command value and a q-axis voltage command value are determined according to the d-axis signal and a q-axis signal obtained based on the deviation between a q-axis current detection value, which is a component in the direction normal to the magnetic flux, and the torque command value for the motor. A voltage command vector is obtained from the d-axis voltage command value and the q-axis voltage command value. The voltage command vector is PWM-converted and a voltage-type inverter control signal is generated.
    • 驱动装置使用向同步电动机供给驱动力的电压型逆变器来控制在其转子中具有永磁体的永磁同步电动机,使同步电动机的转矩和同步电动机中的d轴电流流入 由永久磁铁产生的磁通量的方向接近其自身的指令值,并通过减小d轴电流来进行弱磁场控制。 为了执行上述控制而没有复杂的d轴电流指令值操作或电机常数的温度修正,驱动装置包括一个比例控制器,用于输出与d轴电流检测值和 电机的d轴电流指令值。 d轴电压指令值和q轴电压指令值根据d轴信号和基于q轴电流检测值(q轴电流检测值) 方向垂直于磁通量,以及电机的转矩指令值。 从d轴电压指令值和q轴电压指令值得到电压指令矢量。 电压指令矢量进行PWM转换,产生电压型逆变器控制信号。
    • 8. 发明授权
    • Photoelectric conversion type rotational position detector
    • 光电转换型旋转位置检测器
    • US4902885A
    • 1990-02-20
    • US286008
    • 1988-12-19
    • Yoshikazu KojimaTakao YanaseMitsuharu NonamiTakao Chida
    • Yoshikazu KojimaTakao YanaseMitsuharu NonamiTakao Chida
    • G01D5/347G01D5/36
    • G01D5/366
    • A photoelectric conversion-type rotational position indicator for indicating the rotational position of a rotating body, including a light receiving member having one or more identically shaped light receiving portions made from a photoelectric converting material at predetermined spacings on the light receiving member to generate sinusoidal signals out of phase from each other, and a light shielding member operably connected to the rotating body such that the light shielding member rotates with the rotating body, the light shielding member having windows shaped with an inner curve and an outer curve such that the visible area of each light receiving portion through each of the windows varies in a sinusoidal form of one cycle as the light shielding member rotates, and means for obtaining the phased separated sinusoidal signals by connecting groups of light receiving portions in parallel or series.
    • 一种用于指示旋转体的旋转位置的光电转换型旋转位置指示器,包括具有由光接收部件上的预定间隔由光电转换材料制成的具有一个或多个相同形状的光接收部分的光接收部件,以产生正弦信号 彼此异相,以及遮光构件,其可操作地连接到所述旋转体,使得所述遮光构件与所述旋转体一起旋转,所述遮光构件具有形成有内曲面的窗口和外曲线,使得所述可见光区域 通过每个窗口的每个光接收部分在遮光构件旋转时以一个周期的正弦形式变化,以及用于通过平行或串联连接光接收部分组来获得相位分离的正弦信号的装置。
    • 10. 发明授权
    • Current-limit system for voltage-type inverter
    • 电压式变频器限流系统
    • US5285145A
    • 1994-02-08
    • US474051
    • 1990-04-24
    • Hirofumi MinowaMasaru YamazoeTakao YanaseShin'ichi IshiiYoshinobu Nagao
    • Hirofumi MinowaMasaru YamazoeTakao YanaseShin'ichi IshiiYoshinobu Nagao
    • H02M7/5387H02P21/00H02P27/08H02P5/40
    • H02P27/08H02M7/53873H02P21/00H02M2007/53876H02P27/047
    • A current transformer (4) detects the output currents of a voltage-type inverter (INV), and comparators (6) check whether the outputs from the current transformer exceed a predetermined limit value. The detected output currents are fed to a vector analyzer (8) to determine the location of the output current vector. A zone determining circuit (9) determines the location of the current vector in the zones. An output pattern generating circuit (10) responds to the output from the zone determining circuit (9) and provides a switching pattern corresponding to the voltage vector nearest to a vector having the direction opposite to that of the output current vector. A selector (2), being controlled by the comparator (6), selects a switching pattern from the output pattern generating circuit and provides it to the inverter (INV), when the comparator (6) detects that the magnitude of the current vector exceeds the predetermined limit value. The rate of change of the output current vector works so as to reduce the current regardless of whether the motor (IM) (a load of the inverter) is to be driven or braked, regardless of the location of the counter-electromotive force vector or the location of the voltage vector selected at that timing when the current limit enters into action. This ensures that the output current of the inverter (INV) will be reduced.
    • PCT No.PCT / JP89 / 00889 Sec。 371日期:1990年04月24日 102(e)日期1990年04月24日PCT提交1989年8月30日PCT公布。 出版物WO90 / 02442 日期:1990年3月8日。电流互感器(4)检测电压型逆变器(INV)的输出电流,比较器(6)检查电流互感器的输出是否超过预定极限值。 检测到的输出电流被馈送到矢量分析器(8)以确定输出电流矢量的位置。 区域确定电路(9)确定区域中当前矢量的位置。 输出模式产生电路(10)响应于区域确定电路(9)的输出,并且提供与最接近于具有与输出电流矢量方向相反的方向的矢量的电压矢量对应的开关模式。 由比较器(6)控制的选择器(2)从输出模式发生电路中选择开关模式,并将其提供给逆变器(INV),当比较器(6)检测到电流矢量的大小超过 预定极限值。 无论电动势矢量的位置如何,输出电流矢量的变化率都可以工作,无论电动机(IM)(逆变器的负载)是被驱动还是制动,都可以减小电流,或者 当电流限制进入动作时,在该定时选择的电压矢量的位置。 这确保了逆变器(INV)的输出电流将被减小。