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41. 发明授权

US3761794A Electric motor control circuits 失效
标题翻译：电动马达控制电路
公开(公告)号：US3761794A
公开(公告)日：1973-09-25
申请号：US3761794D
申请日：1973-02-16
申请人： ROCKWELL INTERNATIONAL CORP
发明人： SINAGRA A , QUINLISK J
IPC分类号： H02H7/085 , H02H11/00 , H02P5/16
CPC分类号： H02H7/0852 , H02H11/00
摘要： An electric motor control circuit having an interlocking relay which is connected in the motor field winding circuit for energization by the voltage applied to at least part of one motor field winding to close a set of normally open relay contacts that complete a holding circuit around a motor start switch. The interlocking relay is connected in series with a set of normally closed motor overload contacts between the motor input terminals so that opening of the motor overload contacts or a power failure de-energizes the interlocking relay. De-energization of the interlocking relay opens the relay contacts to de-energize a motor starting contactor for disconnecting the motor field circuit from the line.
摘要翻译：一种具有互锁继电器的电动机控制电路，其连接在电动机励磁绕组电路中，用于通过施加到一个电动机励磁绕组的至少一部分上的电压进行通电，以闭合一组常开继电器触点，该一组常开继电器触点在电动机周围完成保持电路启动开关。联锁继电器与电机输入端子之间的一组常闭电机过载触点串联连接，使电机过载触点断开或电源故障使互锁继电器断电。互锁继电器的断电打开继电器触点，以断开电动机起动接触器的电源，以断开电机励磁电路与线路的连接。

42. 发明授权

US3636426A Motor control system including motor protector and remote sensor for controlling motor operation 失效
标题翻译：电机控制系统，包括电机保护器和遥控传感器，用于控制电机运行
公开(公告)号：US3636426A
公开(公告)日：1972-01-18
申请号：US3636426D
申请日：1970-08-25
申请人： TEXAS INSTRUMENTS INC
发明人： BUITING FRANCIS P
IPC分类号： H02H7/085 , H02H5/04
CPC分类号： H02H7/0852
摘要： The control system employs a thermostatic motor protector for controlling a system parameter, such as temperature, at a distance from the motor as well as for protecting the motor. A thermistor is provided having a resistance which varies in response to changes in the value of the parameter. The thermistor is interconnected with a heater associated with the motor protector to cause the protector to deenergize the motor if the value of the parameter exceeds a predetermined threshold.

43. 发明授权

US3617839A Brushless motor and inverter 失效
标题翻译：无刷电机和逆变器
公开(公告)号：US3617839A
公开(公告)日：1971-11-02
申请号：US3617839D
申请日：1969-12-01
申请人： LEAR SIEGLER INC
发明人： HILL ARTHUR
IPC分类号： H02H5/08 , H02H7/085 , H02K5/12 , H02K29/00 , H02P6/00 , H02P5/40
CPC分类号： H02H7/0852 , H02H5/086 , H02K5/12 , H02P6/26
摘要： A control system and power supply for energizing a single-phase AC motor from a DC source for critical brush wear applications utilizing a solid-state inverter circuit and an auxiliary start winding for the motor continuously energized through a capacitor connection. An automatic shutdown feature for the motor-inverter combination is included for loss of fluid heat sink in fluid environments comprising a temperature responsive sensing element, an SCR trigger device and a power interrupter activated thereby.

44. 发明授权

US3562587A Overheating control device for alternating current motor 失效
标题翻译：用于替代电流马达的过热控制装置
公开(公告)号：US3562587A
公开(公告)日：1971-02-09
申请号：US3562587D
申请日：1968-09-19
申请人： DANFOSS AS
发明人： FORST SVEN
IPC分类号： H02H7/085 , H02K11/25 , H02H7/08 , H02H5/04
CPC分类号： H02H7/0852 , H02K11/25
摘要： The invention relates to an overheating control device for an alternating current motor. The device comprises a symmetrical controlled semiconductor valve in the motor lead and PTC resistor means thermally coupled to the motor windings. The PTC resistor means is connected to the control electrode of the semiconductor valve and concomitant with a temperature rise in the motor windings, the current flowing through the PTC resistor means decreases to effect a closing of the semiconductor valve.

45. 发明授权

US3280373A Over-temperature protection system having means for simulating the temperature rise rate of a dynamoelectric machine and winding 失效
标题翻译：具有用于模拟电动机和绕组的升温速率的装置的过热保护系统
公开(公告)号：US3280373A
公开(公告)日：1966-10-18
申请号：US22180062
申请日：1962-09-06
申请人： CARRIER CORP
发明人： DABINETT GEORGE B
IPC分类号： H02H7/085
CPC分类号： H02H7/0852

46. 发明授权

US3263158A Saturable reactor voltage control circuit 失效
标题翻译：可靠电抗器电压控制电路
公开(公告)号：US3263158A
公开(公告)日：1966-07-26
申请号：US30240963
申请日：1963-08-15
申请人： MOTOROLA INC
发明人： BARGEN DAVID W , NESS BRADFORD O VAN
IPC分类号： H02H5/04 , H02H7/085
CPC分类号： H02H5/042 , H02H7/0852

47. 发明授权

US3262014A Equipment protection means 失效
标题翻译：设备保护手段
公开(公告)号：US3262014A
公开(公告)日：1966-07-19
申请号：US17103862
申请日：1962-02-05
申请人： WAGNER ELECTRIC CORP
发明人： EUGENE CONNER LEONARD
IPC分类号： H02H3/05 , H02H7/085
CPC分类号： H02H7/0852 , H02H3/05

48. 发明授权

US3064444A Safety control circuits for the motors of refrigerant compressors 失效
标题翻译：制冷压缩机电机的安全控制回路
公开(公告)号：US3064444A
公开(公告)日：1962-11-20
申请号：US85618859
申请日：1959-11-30
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： KYLE WILLIAM K
IPC分类号： H02H7/085
CPC分类号： H02H7/0852

49. 发明授权

US1016661A Circuit-controlling apparatus. 失效
公开(公告)号：US1016661A
公开(公告)日：1912-02-06
申请号：US1910569017
申请日：1910-06-27
申请人： ALLIS CHALMERS
发明人： WILKINSON NATHAN
CPC分类号： H02H7/0852 , Y10T307/865 , Y10T307/951

50. 发明授权

US11916372B2 Motor protection device 有权
公开(公告)号：US11916372B2
公开(公告)日：2024-02-27
申请号：US17634327
申请日：2020-10-02
申请人： BELIMO HOLDING AG
发明人： Maurizio Gaeta , Thomas Gay , Stephan Haag
IPC分类号： H02H7/085
CPC分类号： H02H7/0852
摘要： A motor protection device (1) that includes an interrupter unit (11, Q1, Q2) for electrically connecting a power supply (Vcc) and an electric motor (M) in an operation mode and electrically disconnecting the power supply (Vcc) and the electric motor in an alternative overload mode. The motor protection device further includes an overload detection unit (12) that is configured to monitor a motor current and to control the interrupter unit (11, Q1, Q2) to switch from the operation mode into the overload mode if the motor current indicates an overload condition of the electric motor (M) in the operation mode. The motor protection device (1) further includes a recovery detection unit (13) that is configured to monitor a motor temperature and to control the interrupter unit (11, Q1, Q2) to switch from the overload mode back into the operation mode if the motor temperature indicates a recovery from the overload condition.

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