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    • 41. 发明专利
    • Permanent magnet type electric rotating machine
    • 永磁式电动旋转机
    • JP2010004671A
    • 2010-01-07
    • JP2008162201
    • 2008-06-20
    • Toshiba Corp株式会社東芝
    • SAKAI KAZUTOYUKI KAZUAKI
    • H02K1/27H02K1/22H02K21/14
    • PROBLEM TO BE SOLVED: To provide a permanent magnet type electric rotating machine capable of variable operation ranging from low speed to high speed with high output, by suppressing increase in the magnetization current, when magnetization increases.
      SOLUTION: A rotor 1 includes a rotor core 2, a permanent magnet 3 having a small product of a coercive force and a magnetization direction thickness, and a permanent magnet 4, having a large product of a coercive force and a magnetization direction thickness. The rotor core 2 is configured by stacking silicon steel plates, and the permanent magnets 3, 4 are embedded in the rotor core 2. Cavities 5 are provided at the ends of the permanent magnets 3, 4 so that a magnetic flux passing through the inside of the rotor core 2 pass the permanent magnets 3, 4 in their thickness directions. When an interlinkage magnetic flux of the permanent magnet 3 is reduced, a magnetic field having a direction reverse to that of the magnetization direction of the permanent magnet 3 is allowed to act by a current of an armature winding. When the interlinkage magnetic flux of the permanent magnet 3 is increased, the magnetic flux of the direction which is identical to that of the magnet magnetization direction is made to act by the current of the armature winding.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种永磁式旋转电机,其能够在磁化强度增加时抑制磁化电流的增加,从而能够以高速输出从低速到高速的可变动作。 解决方案:转子1包括转子芯2,具有矫顽力和磁化方向厚度的小积分的永磁体3和永磁体4,其具有矫顽力和磁化方向的大乘积 厚度。 转子芯2通过堆叠硅钢板构成,并且永久磁铁3,4嵌入在转子铁芯2中。在永磁体3,4的端部设置有空腔5,使得通过内侧的磁通 转子芯2在其厚度方向上穿过永磁体3,4。 当永磁体3的交链磁通减少时,具有与永磁体3的磁化方向相反的方向的磁场被电枢绕组的电流作用。 当永磁体3的交链磁通量增加时,使与磁体磁化方向相同的方向的磁通量由电枢绕组的电流起作用。 版权所有(C)2010,JPO&INPIT
    • 42. 发明专利
    • Permanent magnet type rotary electric machine, method of assembling permanent magnet type rotary electric machine, method of disassembling permanent magnet type rotary electric machine and drive system for permanent magnet electric motor
    • 永磁电机型旋转电机,永磁电机旋转电机的组装方法,永磁电机旋转电机的拆卸方法及永磁电机的驱动系统
    • JP2009201259A
    • 2009-09-03
    • JP2008040448
    • 2008-02-21
    • Toshiba Corp株式会社東芝
    • SAKAI KAZUTOYUKI KAZUAKI
    • H02K1/27H02K1/22H02K15/02H02K15/03H02K21/14H02P21/00H02P27/04
    • H02K1/2766H02K1/02H02P21/00H02P21/06H02P27/04H02P2207/05
    • PROBLEM TO BE SOLVED: To provide a permanent magnet type rotary electric machine capable of improving efficiency in a wide operation scope, reliability and productivity by enabling variable speed operation in a wide scope ranging from a low speed to a high speed with high power. SOLUTION: The permanent magnet type rotary electric machine has a structure in which a magnetic pole is formed using a first permanent magnet 3 having a small product between a coercive force and a thickness in magnetization direction and a second permanent magnet 4 having a large product between the coercive force and the thickness of the magnetization direction, the first permanent magnet is so formed that the product between the coercive force and the thickness in the magnetization direction is not smaller than the product between the strength of a magnetic field in an operation point at no load of the second permanent magnet and the thickness of the magnetization direction, the first permanent magnet is magnetized by the magnetic field formed by a current of a winding of an armature in the magnetic pole, and thus the magnetic flux quantity of the first permanent magnet can be irreversibly changed. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种永磁式旋转电机,其能够通过在具有高速度的低速到高速的范围内实现可变速度运行,从而提高广泛的运行范围,可靠性和生产率的效率 功率。 解决方案:永磁式旋转电机具有这样的结构,其中使用具有矫顽力和磁化方向厚度之间的小乘积的第一永久磁铁3形成磁极,以及第二永磁体4具有 矫顽力与磁化方向厚度之间的大的乘积,第一永久磁铁的形状使矫顽力与磁化方向的厚度之间的乘积不小于磁化方向的磁场强度 第二永久磁铁的无负载的操作点和磁化方向的厚度,第一永久磁铁被磁极中的电枢绕组的电流形成的磁场磁化,因此磁通量 第一永久磁铁可以不可逆地改变。 版权所有(C)2009,JPO&INPIT
    • 43. 发明专利
    • Variable magnetic flux drive system
    • 可变磁通驱动系统
    • JP2009072046A
    • 2009-04-02
    • JP2007240833
    • 2007-09-18
    • Toshiba Corp株式会社東芝
    • YUKI KAZUAKISAKAI KAZUTOMOCHIKAWA HIROSHI
    • H02P27/06H02K1/27
    • B60L2200/26
    • PROBLEM TO BE SOLVED: To provide a compact and efficient variable magnetic flux drive system which secures voltage needed to supply a magnetizing current so as to control the magnetic flux of a variable magnet used in a permanent magnet motor. SOLUTION: The variable magnetic flux drive system includes a variable magnetic flux motor 1 having a variable magnet as a permanent magnet having a low retention force, an inverter 4 for driving the variable magnetic flux motor 1, an inverter 4 as a magnetizing section for supplying a magnetizing current for controlling the magnetic flux of the variable magnet, and a boosting section 5 for boosting the input DC voltage up to a prescribed target value to output it to the inverter 4. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种紧凑且高效的可变磁通驱动系统,其确保提供磁化电流所需的电压,以便控制永磁电动机中使用的可变磁体的磁通量。 解决方案:可变磁通驱动系统包括具有可变磁体作为具有低保持力的永磁体的可变磁通电动机1,用于驱动可变磁通电动机1的逆变器4,作为磁化的逆变器4 用于提供用于控制可变磁体的磁通的磁化电流的部分,以及用于将输入的DC电压升压到规定的目标值的升压部5,以将其输出到逆变器4.版权所有(C)2009 ,JPO&INPIT
    • 44. 发明专利
    • Permanent-magnet rotary electric machine
    • 永磁旋转电机
    • JP2008289300A
    • 2008-11-27
    • JP2007133171
    • 2007-05-18
    • Toshiba Corp株式会社東芝
    • SAKAI KAZUTOYUKI KAZUAKI
    • H02K15/03H02K1/22H02K1/27H02K1/28H02K21/14
    • PROBLEM TO BE SOLVED: To provide a permanent-magnet rotary electric machine that improves efficiency in a wide operating range and improves reliability while allowing variable-speed operation in a wide range from a low speed to a high speed with high output.
      SOLUTION: The permanent-magnet rotary electric machine has a rotor and a stator provided with a magnetizing coil and an armature coil. The rotor is composed of a rotor core, which has an irregular air-gap face and is axially split into two, a first permanent magnet interposed between the split cores, and each second permanent magnet embedded to each recess of the split cores. The core protrusions and the second permanent magnets constitute a magnetic pole. The first permanent magnet is composed so that a product of a coercive force and a thickness in the magnetization direction is small. While, the second permanent magnet is composed so that a product of the coercive force and the thickness in the magnetization direction is large. A magnetic field generated by the magnetizing coil irreversibly magnetizes the permanent magnet, in which the product of the coercive force and the thickness in the magnetization direction is small, so as to change a total amount of flux linkage. The permanent magnets are irreversibly magnetized by supplying a current into the magnetization coil for a very short time. Consequently, only a small current is required to flow into the magnetization coil.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种在宽范围的操作范围内提高效率并提高可靠性的永磁式旋转电机,同时允许从高速输出的低速到高速的宽范围的变速操作。 解决方案:永磁旋转电机具有转子和定子,其具有磁化线圈和电枢线圈。 转子由转子铁芯组成,转子铁心具有不规则的气隙面并轴向分为两部分,插入在分裂芯之间的第一永久磁铁,以及埋设在分裂铁芯的每个凹槽中的每个第二永磁体。 芯突起和第二永磁体构成磁极。 第一永磁体被构成为矫顽力和磁化方向厚度的乘积小。 而第二永久磁铁构成为使得矫顽力和磁化方向厚度的乘积大。 由磁化线圈产生的磁场不可逆地磁化矫顽力和磁化方向厚度的乘积小的永磁体,从而改变磁链的总量。 通过在非常短的时间内将电流供给到磁化线圈中,永磁体不可逆地磁化。 因此,仅需要小的电流流入磁化线圈。 版权所有(C)2009,JPO&INPIT
    • 45. 发明专利
    • Variable magnetic flux drive system
    • 可变磁通驱动系统
    • JP2008043172A
    • 2008-02-21
    • JP2006218228
    • 2006-08-10
    • Toshiba Corp株式会社東芝
    • YUKI KAZUAKISAKAI KAZUTO
    • H02P6/08
    • Y02T10/641Y02T10/643Y02T10/644Y02T10/7241
    • PROBLEM TO BE SOLVED: To provide a variable magnetic flux drive system that drives a variable magnetic flux motor, of which the precision of repeating the magnetic flux of a variable magnet is improved and torque precision is improved, as well. SOLUTION: The variable magnetic flux drive system comprises a permanent magnet motor 1 which uses a permanent magnet, an inverter 4 which drives a permanent magnet motor, and a magnetizing means which flows magnetization currents for controlling magnetic flux of the permanent magnet. The permanent magnet is variable where its magnetic flux density can be varied by the magnetization current from the inverter 4. The magnetizing means flows the magnetization current that is equal to or higher than a magnetizing saturation region of the magnetic body of the variable magnet. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供驱动可变磁通电动机的可变磁通量驱动系统,其中可变磁体的磁通重复精度提高,转矩精度提高。 解决方案:可变磁通驱动系统包括使用永磁体的永磁电动机1,驱动永磁电动机的逆变器4和流过永磁体的磁通量的磁化电流的磁化装置。 永磁体是可变的,其中其磁通密度可以通过来自逆变器4的磁化电流而变化。磁化装置流过等于或高于可变磁体的磁体的磁化饱和区域的磁化电流。 版权所有(C)2008,JPO&INPIT
    • 46. 发明专利
    • Variable magnetic flux drive system
    • 可变磁通驱动系统
    • JP2008029148A
    • 2008-02-07
    • JP2006200568
    • 2006-07-24
    • Toshiba Corp株式会社東芝
    • YUKI KAZUAKISAKAI KAZUTO
    • H02P21/00H02K1/27H02P6/08H02P27/04
    • Y02T10/641Y02T10/643Y02T10/644Y02T10/7241
    • PROBLEM TO BE SOLVED: To provide a variable magnetic flux drive system which can be adapted to a wide speed range, by suppressing the deterioration of torque accuracy caused by comprising a variable magnet in the system, also suppressing transition torque accompanied by magnetization processing, and improving the efficiency of the system as a whole. SOLUTION: A magnetization requirement generator 29 generates requirement for magnetizing the variable magnet when a prescribed condition is satisfied for a variable magnetic flux control unit 13. When the magnetization requirement is inputted to the variable magnetic flux control unit 13, the variable magnetic flux control unit magnetizes the variable magnet, by making magnetic flux variable using a magnetization current from an inverter 1. A switch 37 switches a DQ-axis current reference, based on a torque command from a torque command generator 38 and a DQ-axis magnetization current command from the variable magnetic flux control unit 13, and a gate command generator 15 generates a gate command for controlling the inverter 1, on the basis of a DQ-axis current reference or a DQ-axis magnetization current command based on a torque command from the switch 37. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供可适应于宽速度范围的可变磁通量驱动系统,通过抑制由系统中的可变磁体引起的扭矩精度的劣化,还抑制伴随着磁化的转移转矩 处理,提高整个系统的效率。 解决方案:当对可变磁通量控制单元13满足规定条件时,磁化要求发生器29产生磁化可变磁体的要求。当将磁化强度要求输入到可变磁通量控制单元13时,可变磁 磁通控制单元通过使用来自逆变器1的磁化电流使磁通量变化来磁化可变磁体。开关37基于来自转矩指令发生器38的转矩指令和DQ轴磁化来切换DQ轴电流基准 来自可变磁通量控制单元13的电流指令和栅极指令发生器15基于DQ轴电流基准或者基于转矩指令的DQ轴磁化电流指令,产生用于控制逆变器1的门命令 (C)2008,JPO&INPIT
    • 47. 发明专利
    • Train control system
    • 火车控制系统
    • JP2008029109A
    • 2008-02-07
    • JP2006198671
    • 2006-07-20
    • Toshiba Corp株式会社東芝
    • YAMAMOTO JUNKOYUKI KAZUAKIKAMATA KEIICHINAKAZAWA KOJI
    • B60L15/20B60L7/24
    • Y02T10/7275
    • PROBLEM TO BE SOLVED: To provide a train control system suppressing slip and skid effectively. SOLUTION: The train control system used to control the speed of a train includes: an acceleration/deceleration command computing means 11 for computing an acceleration/deceleration command to each axle; driving/braking device control means 12A, 12B, 12C for controlling driving/braking devices based on an acceleration/deceleration command from the acceleration/deceleration command computing means and a result of slip/skid detection; and a slipping/skidding axle determining means 13 for determining an axle likely to slip or skid or is slipping or skidding. When the slipping/skidding axle determining means determines an axle likely to slip or slid or is slipping or skidding, the acceleration/deceleration command computing means issues an individual acceleration/deceleration command to each axle. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种有效抑制滑移和滑动的列车控制系统。 解决方案:用于控制列车速度的列车控制系统包括:加速/减速命令计算装置11,用于计算每个车轴的加速/减速命令; 基于来自加减速指令运算单元的加减速指令来控制驱动/制动装置的驱动/制动装置控制装置12A,12B,12C以及滑移/滑移检测结果; 以及用于确定可能滑动或滑动或滑倒或打滑的车轴的滑动/滑动轴确定装置13。 当滑动/滑动轴确定装置确定可能滑动或滑动或滑动或滑动的车轴时,加速/减速命令计算装置向每个轴发出单独的加速/减速命令。 版权所有(C)2008,JPO&INPIT
    • 49. 发明专利
    • Electric vehicle control device and electric vehicle control system
    • 电动车辆控制装置和电动车辆控制系统
    • JP2007060777A
    • 2007-03-08
    • JP2005241640
    • 2005-08-23
    • Toshiba Corp株式会社東芝
    • KAWAI HIROTOSHIYUKI KAZUAKI
    • B60L9/18
    • PROBLEM TO BE SOLVED: To provide an electric vehicle control device that can control backing up of a VVVF inverter by precisely detecting the backing up of an electric vehicle. SOLUTION: The electric vehicle comprises the VVVF inverter 1 that converts a DC current fed from an overhead wire into a prescribed voltage and a frequency; an induction motor 7 that does not have a speed sensor that makes the electric vehicle travel with an output of the VVVF inverter 1 as a power supply; and a current sensor 2 that detects a current fed to the induction motor 7 from the VVVF inverter 1. Also the electric vehicle also is provided with a DC excitation current feeding means 1 that feeds a DC excitation current to the induction motor 7 from the VVVF inverter 1 in a fine period immediately, after the start of the VVVF inverter 1; an index operation integrator 5 that operates index indicating the direction, where the induction motor 7 is rotated from Q-axis current generated by the feeding of the DC excitation current by the DC excitation current feeding means; and a retraction detection means 6 that compares the index with a retraction detection setting value and detects the retreat. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种电动车辆控制装置,其可以通过精确地检测电动车辆的备份来控制VVVF逆变器的备份。 解决方案:电动车辆包括VVVF逆变器1,其将从架空线馈送的直流电转换成规定的电压和频率; 不具有使电动车辆以VVVF逆变器1的输出作为电源行驶的速度传感器的感应电动机7; 以及电流传感器2,其从VVVF逆变器1检测馈送到感应电动机7的电流。电动车辆还设置有直流励磁电流馈送装置1,其从VVVF向感应电动机7馈送DC励磁电流 逆变器1在VVVF逆变器1启动之后立即处于精细周期; 索引操作积分器5,其操作指示由通过DC励磁电流馈送装置馈送DC激励电流产生的Q轴电流使感应电动机7旋转的方向的索引; 以及缩回检测装置6,其将索引与缩回检测设定值进行比较,并检测撤回。 版权所有(C)2007,JPO&INPIT
    • 50. 发明专利
    • Power converter
    • 电源转换器
    • JP2007006606A
    • 2007-01-11
    • JP2005183296
    • 2005-06-23
    • Toshiba Corp株式会社東芝
    • YUKI KAZUAKIKATAOKA AKIHISATANAKA SHIGERU
    • H02M7/12
    • PROBLEM TO BE SOLVED: To provide a power converter exhibiting excellent overload capacity in which power can be regenerated, voltage utilization rate of the converter is high, maximum interruption current of a switching element is low, and economical power conversion can be performed with high efficiency and high power factor. SOLUTION: The power converter comprises a power diode rectifier having an AC terminal connected with an AC power supply through a transformer, a power converter having an AC terminal connected with the AC terminal of the power diode rectifier through an AC reactor, a DC smoothing capacitor connected between the power converter and the common DC terminal of the power diode rectifier, and a DC voltage control means for controlling a DC voltage applied to the DC smoothing capacitor by operating the power converter in a fixed pulse pattern and regulating the phase angle of the AC terminal voltage of the power converter to the AC power supply voltage. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供能够再生电力的优异的过载能力的电力转换器,转换器的电压利用率高,开关元件的最大中断电流低,并且可以进行经济的电力转换 具有高效率和高功率因数。 电源转换器包括功率二极管整流器,其具有通过变压器与AC电源连接的AC端子,具有通过AC电抗器与功率二极管整流器的AC端连接的AC端子的功率转换器, 直流平滑电容器,连接在功率转换器与功率二极管整流器的公共直流端子之间;直流电压控制装置,用于通过以固定脉冲模式操作功率转换器来控制施加到直流平滑电容器的直流电压,并调节相位 电源转换器的交流端子电压的角度与交流电源电压的关系。 版权所有(C)2007,JPO&INPIT