专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20140300303A1 SYSTEMS AND METHODS FOR ARC DETECTING AND EXTINGUISHING IN MOTORS 审中-公开
标题翻译：用于电机中电弧检测和灭火的系统和方法
公开(公告)号：US20140300303A1
公开(公告)日：2014-10-09
申请号：US14198725
申请日：2014-03-06
申请人： Hamilton Sundstrand Corporation
发明人： Waleed M. Said
IPC分类号： H02P6/24
CPC分类号： H02P6/24 , B60L3/0061 , B60L3/04 , B60L2210/30 , B60L2220/16 , B60L2240/427 , B60L2240/429 , G01R31/025 , G01R31/346 , H02H1/0015 , H02H3/13 , H02H3/16 , H02H3/20 , H02H3/24 , H02H5/04 , H02H7/0838 , H02P3/22 , H02P29/0241 , Y02T10/646 , Y02T10/7241
摘要： A system and method for arc detecting and extinguishing in motors includes a power input interface to a power source; an output interface to a motorized load to deliver power to the motorized load; a set of sensors configured to detect an arc condition in the motorized load; a set of switches switchable to provide a low-impedance pathway parallel to the arc condition in the motorized load; and a controller, coupled to the power input interface, the output interface, the set of sensors, and the set of switches, the controller being configured to switch the set of switches to disconnect the power source, and activate the low-impedance pathway based on the detection of the arc condition, thereby preventing unintentionally generated energy in the motorized load from sustaining the arc condition.
摘要翻译：电动机中电弧检测和熄灭的系统和方法包括：电源的电源输入接口; 与电动负载的输出接口，以向电动负载输送功率; 一组传感器，被配置为检测电动负载中的电弧状况; 一组开关，其可切换以提供平行于电动负载中的电弧状态的低阻抗路径; 以及耦合到电力输入接口，输出接口，该组传感器和该组开关的控制器，该控制器被配置为切换该组开关以断开电源，并基于该低阻抗路径激活在电弧状态的检测中，从而防止电动负载中的无意中产生的能量维持电弧状态。

2. 发明授权

US08536877B2 Power cable breaking detection method of motor 有权
标题翻译：电动机电缆断线检测方法
公开(公告)号：US08536877B2
公开(公告)日：2013-09-17
申请号：US12953146
申请日：2010-11-23
申请人： Sanghyeon Moon , Youngkook Lee , Jin Hwan Jung
发明人： Sanghyeon Moon , Youngkook Lee , Jin Hwan Jung
IPC分类号： G01R31/02
CPC分类号： G01R31/021 , B60L3/0069 , B60L3/04 , B60L11/14 , B60L11/1803 , B60L11/1816 , B60L11/1887 , B60L15/007 , B60L15/20 , B60L2210/40 , B60L2240/421 , B60L2240/429 , B60L2240/80 , G01R31/006 , G01R31/026 , G01R31/343 , H02H3/13 , Y02T10/645 , Y02T10/70 , Y02T10/7072 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275 , Y02T90/127 , Y02T90/14 , Y02T90/34
摘要： A power cable breaking detection method for a vehicle includes detecting currents of respective phases supplied to a three-phase motor from an inverter through at least a power cable, and a driving speed of the motor, determining whether the respective currents and the driving speed of the motor satisfy power cable breaking detection conditions, determining whether various conditions are satisfied with respect to a cable breaking sensing reference value of a current command performing cable breaking timer counting when the conditions are satisfied, and determining whether a predetermined period has elapsed such that a cable is considered broken when the predetermined period has elapsed.
摘要翻译：一种用于车辆的电力电缆断路检测方法包括：通过至少一根电力电缆检测来自逆变器的三相电动机的各相的电流和电动机的驱动速度，确定电动机的各自的电流和驱动速度所述电动机满足电力电缆断线检测条件，判断在满足条件的情况下，对执行电缆断路定时器计数的电流指令的电缆断裂检测参考值是否满足各种条件，以及确定是否经过了预定期间，使得当预定时间段过去时，电缆被认为是断开的。

3. 发明授权

US4064546A Protection circuits 失效
标题翻译：保护电路
公开(公告)号：US4064546A
公开(公告)日：1977-12-20
申请号：US696705
申请日：1976-06-16
申请人： Thadee Domanski
发明人： Thadee Domanski
IPC分类号： G01R19/165 , H02H3/02 , H02H3/027 , H02H3/13 , H02H7/09 , H02H3/24
CPC分类号： H02H3/027 , G01R19/16509 , H02H3/13
摘要： A protection circuit is provided which incorporates a reed relay whose contacts form the circuit breaker of an electrical appliance. The winding of the reed relay is supplied with a rectified alternating current derived from a current transformer coupled to the supply line to the appliance. In order to avoid periods of zero current in the winding, the winding is also supplied with a rectified alternating current from a source which is out of phase with that supplying the supply line. Failure of the current on the line will cause the contacts to open. Preferably the relay has a set of self latching contacts to prevent re-energization of the winding once de-energized. A manually operable reset switch is provided in series with the self latching contacts.
摘要翻译：提供了一种保护电路，该保护电路包括一个舌簧继电器，其接触件形成电器的断路器。簧片继电器的绕组提供了一个整流的交流电流，该交流电流源自耦合到电器的电源线的电流互感器。为了避免绕组中的零电流周期，绕组还从与提供电源线的电源异相的源提供整流的交流电。当前线路的故障将导致联系人打开。优选地，继电器具有一组自锁定触点，以防止绕组一旦断电再次通电。提供与自锁触点串联的可手动复位开关。

4. 发明授权

US4021700A Digital logic control system for three-phase submersible pump motor 失效
标题翻译：三相潜水泵电机数字逻辑控制系统
公开(公告)号：US4021700A
公开(公告)日：1977-05-03
申请号：US583718
申请日：1975-06-04
申请人： David R. Ellis-Anwyl
发明人： David R. Ellis-Anwyl
IPC分类号： H02H3/13 , H02H7/08 , H02H7/09
CPC分类号： H02H7/09 , H02H3/13 , H02H7/0827
摘要： Complete protection of a three-phase submersible pump motor, such as the type used downhole in an oil well, is obtained with a solid state digital logic control system that monitors each of the three phase currents and shuts the pump motor down if any of those phase currents indicates either an underload or overload condition. Time delays are introduced before shutdown to avoid undesired nuisance shutdowns otherwise caused by transient or momentary conditions. When the pump motor is de-energized in response to an underload condition, it is automatically restarted after a predetermined time delay. All of the delay functions are precisely determined by division of the power line frequency. Downhole pressure and temperature are also sensed and if they become excessive the motor is automatically de-energized to prevent overheating. The presence of an auxiliary physical condition, such as filling up a retaining tank, also causes the pump motor to be turned off.
摘要翻译：使用固态数字逻辑控制系统获得三相潜水泵电机的完整保护，例如在油井中使用的井下型号，监控三相电流中的每一个，并将泵电机关闭，如果有的话相电流表示欠载或过载状态。在停机之前引入时间延迟，以避免由短暂或瞬时条件造成的不必要的妨扰关机。当泵电机响应于欠载状态而断电时，在预定的时间延迟之后自动重启。所有的延迟功能都通过电源线频率的划分精确地确定。还检测井下压力和温度，如果它们变得过大，则电机自动断电以防止过热。辅助物理状况的存在，例如填充保持箱，也会导致泵马达被关闭。

5. 发明授权

US3840780A Detector-protector circuit 失效
标题翻译：检测器保护电路
公开(公告)号：US3840780A
公开(公告)日：1974-10-08
申请号：US34239873
申请日：1973-03-19
申请人： DETPROTECTOR INC
发明人： SONS J
IPC分类号： H02H3/04 , H02H3/13 , H02H7/09
CPC分类号： H02H3/13 , H02H3/04
摘要： A detector-protector circuit includes monitoring circuits each individual to a component of an electrical device. Each monitoring circuit is responsive to a malfunction of its associated component to disable the electrical device and to actuate an indicator lamp. In one embodiment of the invention the components are limit switches in the electrical device and each monitoring circuit is responsive to actuation of its respective limit switch. In another embodiment of the invention the components are power leads extending to a three-phase motor and each monitoring circuit is responsive to a decrease in the rate of current flow through its respective lead.

6. 发明授权

US3838314A Detector for reverse and open phase in a three phase circuit 失效
标题翻译：三相电路中的反相和相位检测器
公开(公告)号：US3838314A
公开(公告)日：1974-09-24
申请号：US36204973
申请日：1973-05-21
申请人： GEN ELECTRIC CANADA
发明人： BOOTHMAN D , NUTT D
IPC分类号： H02H3/34 , H02H3/13 , H02H11/00 , H02H3/26
CPC分类号： H02H11/004 , H02H3/13
摘要： According to the invention a transducer coupled to a three phase AC supply for a load provides three trains overlapping voltage waveforms displaced 120* in time and of phase sequence following the supply sequence. A waveform converter converts these voltage waveforms into three trains of square waveforms of the same repetition rate, substantially the same duration, and displaced 120* in time but overlapping in duration. The square waveforms are then impressed on a wye circuit configuration consisting of a resistor and a gate controlled semiconductor connected in series and to the wye point in that order for each leg. Each semiconductor is gated on upon its anode going positive by another waveform which is of gating polarity and overlaps the positive going anode waveform. During normal three phase operation of the load, the positive voltages on the anodes of the semiconductor are substantially zero. During reversal or loss of phase of the load, these voltages are no longer zero and are detected by a detector circuit which signals the presence of the fault.
摘要翻译：根据本发明，耦合到用于负载的三相AC电源的换能器提供三个火车重叠的电压波形，时间上为120度，并且在供应序列之后的相序。波形转换器将这些电压波形转换成具有相同重复频率，基本相同持续时间的三列平方波形，并且在时间上偏移120度，但在持续时间上重叠。然后将平方波形施加在由电阻器和串联连接的栅极控制半导体以及每个支路的顺序点到绕点的组合电路配置上。每个半导体在其阳极通过选通极性的另一个波形为正时门控，并与正向阳极波形重叠。在负载的正常三相操作期间，半导体的阳极上的正电压基本为零。在负载的相位反转或丢失期间，这些电压不再为零，并且由检测器电路检测到，该信号表明存在故障。

7. 发明授权

US3742303A Compressor protector system 失效
标题翻译：压缩机保护系统
公开(公告)号：US3742303A
公开(公告)日：1973-06-26
申请号：US3742303D
申请日：1971-11-08
申请人： BEC PROD INC
发明人： DAGEFORD E
IPC分类号： H02H3/10 , H02H3/13 , H02H7/08
CPC分类号： H02H3/10 , H02H3/13 , H02H7/0816 , H02H7/0822
摘要： A compressor protector system for externally monitoring the internal temperature of a compressor motor by monitoring the level of the current supplied to the motor and for discontinuing the supply of voltage to the motor when the current level is above or below a desired range of levels for a predetermined period of time. The compressor protector system may also directly monitor high temperature conditions within the compressor and a single phasing condition of the three-phase supply to the compressor motor so as to discontinue the supply of voltage under such high temperature or single phasing conditions. The compressor protector system automatically rechecks after a predetermined period of time to determine if the particular fault which resulted in a continuing of the voltage supply has cleared and then automatically restarts the compressor if the fault has cleared. The system also prevents short cycling in that once the compressor has been turned off it cannot be restarted until after a predetermined period of time.

8. 发明授权

US1620556A Electromagnetic device 失效
公开(公告)号：US1620556A
公开(公告)日：1927-03-08
申请号：US51456921
申请日：1921-11-12
申请人： GEN ELECTRIC
发明人： JONES BENJAMIN W
IPC分类号： H02H3/13
CPC分类号： H02H3/13

9. 发明申请

US20180115270A1 CONTROL DEVICE FOR ROTARY ELECTRICAL MACHINE AND CONTROL METHOD 审中-公开
公开(公告)号：US20180115270A1
公开(公告)日：2018-04-26
申请号：US15784608
申请日：2017-10-16
申请人： Mitsubishi Electric Corporation
发明人： Hideaki KAWAMOTO , Noriyuki WADA , Taisuke IWAKIRI , Takuya MIYANAGA
IPC分类号： H02P29/024 , B60L3/00 , H02H3/13
CPC分类号： H02P29/0243 , B60L3/003 , B60L15/007 , B60L2210/40 , B60L2240/429 , B60L2240/529 , H02H3/13 , H02P27/06
摘要： The control device for a rotary electrical machine which is connected between a DC power source and a rotary electrical machine and which controls driving of the rotary electrical machine by converting DC power from the DC power source into AC power, includes a power conversion circuit which is configured from a plurality of switching elements, a phase current detection unit which detects phase currents in the rotary electrical machine, a phase current ratio derivation unit which derives a ratio in which the phase currents detected by the phase current detection unit are equal to or greater than a reference value, or equal to or lower than the reference value, and an element fault determination unit which determines a fault status of each of the switching elements when the ratio derived by the phase current ratio derivation unit is equal to or greater than a previously established ratio threshold value.

10. 发明申请

US20120068721A1 POWER CABLE BREAKING DETECTION METHOD OF MOTOR 有权
标题翻译：电动机电缆断线检测方法
公开(公告)号：US20120068721A1
公开(公告)日：2012-03-22
申请号：US12953146
申请日：2010-11-23
申请人： Sanghyeon Moon , Youngkook Lee , Jin Hwan Jung
发明人： Sanghyeon Moon , Youngkook Lee , Jin Hwan Jung
IPC分类号： G01R31/02
CPC分类号： G01R31/021 , B60L3/0069 , B60L3/04 , B60L11/14 , B60L11/1803 , B60L11/1816 , B60L11/1887 , B60L15/007 , B60L15/20 , B60L2210/40 , B60L2240/421 , B60L2240/429 , B60L2240/80 , G01R31/006 , G01R31/026 , G01R31/343 , H02H3/13 , Y02T10/645 , Y02T10/70 , Y02T10/7072 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275 , Y02T90/127 , Y02T90/14 , Y02T90/34
摘要： A power cable breaking detection method for a vehicle includes detecting currents of respective phases supplied to a three-phase motor from an inverter through at least a power cable, and a driving speed of the motor, determining whether the respective currents and the driving speed of the motor satisfy power cable breaking detection conditions, determining whether various conditions are satisfied with respect to a cable breaking sensing reference value of a current command performing cable breaking timer counting when the conditions are satisfied, and determining whether a predetermined period has elapsed such that a cable is considered broken when the predetermined period has elapsed.
摘要翻译：一种用于车辆的电力电缆断路检测方法包括：通过至少一根电力电缆检测来自逆变器的三相电动机的各相的电流和电动机的驱动速度，确定电动机的各自的电流和驱动速度所述电动机满足电力电缆断线检测条件，判定在满足条件的情况下，对执行电缆断路定时器计数的电流指令的电缆断裂检测参考值是否满足各种条件，以及确定是否经过了预定期间，使得当预定时间段过去时，电缆被认为是断开的。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式