-
公开(公告)号：US20140246942A1
公开(公告)日：2014-09-04
申请号：US14351458
申请日：2011-12-23
IPC分类号： H02K3/18
CPC分类号： H02K3/18 , H02K3/524 , H02K21/185
摘要： A stator comprising a plurality of stator elements, each stator element comprising a core and a coil wound about the core. The coil of at least one stator element is wound at angle such that the coil is sheared towards an adjacent stator element so as to reduce magnetic flux leakage between the two elements.
摘要翻译： 一种定子，包括多个定子元件，每个定子元件包括一个芯和围绕该芯缠绕的线圈。 至少一个定子元件的线圈被卷绕成角度，使得线圈被剪切向相邻的定子元件，以便减小两个元件之间的磁通量泄漏。
-
公开(公告)号：US20140319955A1
公开(公告)日：2014-10-30
申请号：US14351482
申请日：2011-12-23
CPC分类号： H02K3/18 , H01F41/086 , H02K1/08 , H02K3/345 , H02K15/095 , H02K21/185
摘要： A stator comprising a coil wound onto a bobbin. The coil is wound as a plurality of layers, each layer comprising a plurality of turns that extend between opposite ends of the bobbin. The outermost layer has a turn pitch greater than that of a lower layer. Additionally, an electrical machine comprising the stator.
摘要翻译： 定子，其包括卷绕在筒管上的线圈。 线圈被缠绕成多个层，每个层包括在线轴的相对端之间延伸的多个匝。 最外层具有比下层更大的转弯节距。 另外，包括定子的电机。
-
公开(公告)号：US20110254488A1
公开(公告)日：2011-10-20
申请号：US13087109
申请日：2011-04-14
IPC分类号： H02P6/18
CPC分类号： H02P6/008 , H02P6/15 , H02P6/26 , H02P6/28 , H02P25/0925 , H02P2209/07
摘要： A method of controlling a brushless permanent-magnet motor that includes rectifying an alternating voltage to provide a rectified voltage having a ripple of at least 50%, and exciting a winding of the motor with the rectified voltage. The winding is excited in advance of zero-crossings of back EMF by an advance period and is excited for a conduction period over each electrical half-cycle of the motor. The advance period and/or the conduction period are then adjusted in response to changes in the speed of the motor and/or the RMS value of the alternating voltage so as to maintain constant average power. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
摘要翻译： 一种控制无刷永磁电动机的方法，包括对交流电压进行整流，以提供具有至少50％的纹波的整流电压，并且激励具有整流电压的电动机的绕组。 绕组在反电动势的零交叉之前被提前激励，并且在电动机的每个电半周期的激励下导通周期。 然后响应于电动机的速度和/或交流电压的RMS值的变化来调整前进周期和/或导通周期，以保持恒定的平均功率。 另外，实现该方法的控制系统以及并入控制系统的电机系统。
-
公开(公告)号：US20100225197A1
公开(公告)日：2010-09-09
申请号：US12709293
申请日：2010-02-19
IPC分类号： H02K1/14
CPC分类号： H02K1/143 , H02K1/185 , H02K21/185 , H02K2213/03
摘要： A stator core that includes a pair of poles separated by an air gap. Each pole includes a first side adjacent the air gap and a second opposite side remote from the air gap. A pole arc is formed in the first side and an arcuate mounting recess is formed in the second side of each pole. Additionally, an electric machine that includes the stator core.
摘要翻译： 定子铁芯，其包括由气隙隔开的一对极。 每个极包括邻近气隙的第一侧和远离气隙的第二相对侧。 在第一侧形成极弧，并且在每个极的第二侧形成弓形安装凹部。 另外，包括定子铁心的电机。
-
公开(公告)号：US07701164B2
公开(公告)日：2010-04-20
申请号：US10588281
申请日：2005-01-27
CPC分类号： H02P25/092
摘要： An electrical machine, such as a switched reluctance motor, has a rotor and a controller arranged to energize at least one electrically energizable phase winding in dependence on the angular position of the rotor. The controller may employ a control law table derived by applying a predetermined DC link voltage to the windings. Differences between an applied DC link voltage and the predetermined DC link voltage may be compensated by applying a predetermined correction to the angular position of energization of the phase winding in dependence on the value applied DC link voltage. Such a compensation factor may be derived from a relationship held in memory.
摘要翻译： 诸如开关磁阻电动机的电机具有转子和控制器，其被布置成根据转子的角位置激励至少一个可电激励相绕组。 控制器可以采用通过将预定的DC链路电压施加到绕组而导出的控制律表。 施加的DC链路电压与预定DC链路电压之间的差异可以通过根据施加的DC链路电压对相绕组的通电角度位置施加预定的校正来补偿。 这样的补偿因子可以从存储器中保持的关系导出。
-
公开(公告)号：US20070278983A1
公开(公告)日：2007-12-06
申请号：US10588281
申请日：2005-01-27
申请人： Andrew Clothier , Stephen Greetham , Hanping Dai
发明人： Andrew Clothier , Stephen Greetham , Hanping Dai
IPC分类号： H02P25/08
CPC分类号： H02P25/092
摘要： An electrical machine, such as a switched reluctance motor, has a rotor and a controller arranged to energize at least one electrically energizable phase winding in dependence on the angular position of the rotor. The controller may employ a control law table derived by applying a predetermined DC link voltage to the windings. Differences between an applied DC link voltage and the predetermined DC link voltage may be compensated by applying a predetermined correction to the angular position of energization of the phase winding in dependence on the value applied DC link voltage. Such a compensation factor may be derived from a relationship held in memory.
摘要翻译： 诸如开关磁阻电动机的电机具有转子和控制器，其被布置成根据转子的角位置激励至少一个可电激励相绕组。 控制器可以采用通过将预定的DC链路电压施加到绕组而导出的控制律表。 施加的DC链路电压与预定DC链路电压之间的差异可以通过根据施加的DC链路电压对相绕组的通电角度位置施加预定的校正来补偿。 这样的补偿因子可以从存储器中保持的关系导出。
-
7.发明授权公开(公告)号：US09369011B2
公开(公告)日：2016-06-14
申请号：US12707500
申请日：2010-02-17
摘要： An electric machine that includes a permanent-magnet rotor and a stator. The stator includes a plurality of poles, each pole having a leading edge and a trailing edge relative to the direction of rotation of the rotor. The leading edge of each pole is thicker than the trailing edge in a direction normal to the rotational axis of the rotor.
摘要翻译： 一种包括永磁转子和定子的电机。 定子包括多个极，每个极具有相对于转子旋转方向的前缘和后缘。 每个极的前缘在垂直于转子的旋转轴线的方向上比后缘厚。
-
公开(公告)号：US08742707B2
公开(公告)日：2014-06-03
申请号：US13086175
申请日：2011-04-13
申请人： Yu Chen , Tuncay Celik , Stephen Greetham
发明人： Yu Chen , Tuncay Celik , Stephen Greetham
IPC分类号： H02P23/12
CPC分类号： H02P6/085 , H02P6/15 , H02P6/26 , H02P2209/07
摘要： A method of controlling a brushless motor that includes rectifying an alternating voltage to provide a rectified voltage, and exciting a winding of the motor with the rectified voltage. The winding is excited in advance of predetermined rotor positions by an advance period that is updated in response to a zero-crossing in the alternating voltage. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
摘要翻译： 一种控制无刷电动机的方法，包括整流交流电压以提供整流电压，以及激励具有整流电压的电动机的绕组。 绕组在预定的转子位置之前被提前期间激励，该提前期响应于交流电压中的过零而更新。 另外，实现该方法的控制系统以及并入控制系统的电机系统。
-
公开(公告)号：US20100215491A1
公开(公告)日：2010-08-26
申请号：US12707504
申请日：2010-02-17
IPC分类号： F04D29/046
CPC分类号： F16C25/083 , F04D29/0563 , F04D29/059 , F16C19/06 , F16C19/54 , F16C35/077 , F16C2360/44 , F16C2380/26
摘要： A rotor assembly that includes a shaft to which are mounted an impeller, a rotor core and a bearing cartridge. The bearing cartridge is mounted between the impeller and the rotor core and comprises a pair of bearings, a spring that applies a preload to each of the bearings, and a sleeve that surrounds the bearings.
摘要翻译： 一种转子组件，其包括安装有叶轮，转子芯和轴承筒的轴。 轴承盒安装在叶轮和转子芯之间，并包括一对轴承，对每个轴承施加预载荷的弹簧以及围绕轴承的套筒。
-
公开(公告)号：US07443125B2
公开(公告)日：2008-10-28
申请号：US10538508
申请日：2003-12-10
申请人： Andrew Charlton Clothier , Stephen Greetham , Mark Henry Haywood , Nigel James Leighton , Neil William Phillips
发明人： Andrew Charlton Clothier , Stephen Greetham , Mark Henry Haywood , Nigel James Leighton , Neil William Phillips
IPC分类号： H02P25/08
CPC分类号： H02M1/425 , H02M1/4258 , H02M3/285 , H02M7/53871 , H02P25/08 , Y02B70/126
摘要： A power conversion apparatus for converting power from an alternating source to dc includes an input stage for receiving power from the alternating source, which includes an input filter, a rectifier for rectifying the alternating signal, a capacitor for storing energy from the rectified signal, and an output for outputting power from the rectifying means and the capacitor to the pulsed load. The pulsed load has at least one switched winding which receives power from the output, and wherein the capacitor is configured such that the voltage across the capacitor falls below 15% of the nominal peak rectified voltage of the source during each cycle of the alternating source. A converter of this kind provides benefits in that the current drawn from the ac supply falls within limits imposed by regulations and is simpler and cheaper than known converters of a similar power rating.
摘要翻译： 用于将来自交流电源的电力转换为直流的电力转换装置包括用于从交流电源接收功率的输入级，其包括输入滤波器，用于整流交流信号的整流器，用于存储来自整流信号的能量的电容器，以及 用于从整流装置和电容器输出功率到脉冲负载的输出。 脉冲负载具有从输出端接收功率的至少一个开关绕组，并且其中电容器配置成使得电容器两端的电压在交流源的每个周期期间降低到源极额定峰值整流电压的15％以下。 这种转换器的优点在于，从交流电源获取的电流属于法规规定的限制，并且比类似额定功率的已知转换器更简单和便宜。
-
-
-
-
-
-
-
-
-
搜索结果
28 条记录 (耗时 0.028 秒)
