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    • 42. 发明公开
    • Stator coil coolant flow reduction monitoring
    • Kühlungflussverminderungüberwachungder Stator-Wickelköpfe
    • EP2372882A1
    • 2011-10-05
    • EP11160981.4
    • 2011-04-04
    • General Electric Company
    • Rai, SudhanshuPiccirillo, NicolaSandrana, RavikumarSahoo, Subrat Kumar
    • H02K9/19H02K11/00H02K9/24
    • H02K9/24G01K13/02G01K2013/026H02K9/08H02K11/25
    • A coolant flow reduction monitoring system (92) for a rotary electric machine (90) having stator coils (106) within a plurality of slots (124) of a stator thereof is provided. The stator coils (106) are cooled by a coolant (140) flowing in a plurality of passages (138) provided in the stator coils (106). The system includes an outlet temperature sensor (150) for measuring a coolant outlet temperature of the coolant (140) in an outlet of at least one of the plurality of passages (138), a slot temperature sensor (152) for measuring a temperature in at least one slot (124) at a location along a length of each slot (124) and outside of the stator coils (106), and an inlet temperature sensor (160) for measuring a coolant inlet temperature of the coolant (140). A coolant flow reduction monitor (170) generates an alarm indicating a coolant flow reduction based on the at least one coolant outlet temperature, the at least one slot temperature and the coolant inlet temperature.
    • 提供一种用于在其定子的多个槽(124)内具有定子线圈(106)的旋转电机(90)的冷却剂流量减少监测系统(92)。 定子线圈(106)由设置在定子线圈(106)中的多个通道(138)中的冷却剂(140)冷却。 该系统包括用于测量多个通道(138)中的至少一个的出口中的冷却剂(140)的冷却剂出口温度的出口温度传感器(150),用于测量多个通道 在每个槽(124)的长度和定子线圈(106)的外侧的位置处的至少一个槽(124)和用于测量冷却剂(140)的冷却剂入口温度的入口温度传感器(160)。 冷却剂流量减少监视器(170)基于至少一个冷却剂出口温度,至少一个槽温度和冷却剂入口温度产生指示冷却剂流量减少的报警。
    • 43. 发明公开
    • Electric motor protection system
    • Elektrisches Motorschutz系统
    • EP2239840A1
    • 2010-10-13
    • EP10157650.2
    • 2010-03-24
    • Arcfl Technology Limited
    • Li, Wing Chung
    • H02P29/02G01D1/18H02H7/085
    • H02P29/02A47J43/0705A47J43/0755G01D1/00G01D15/00H02H7/0822H02H7/0852H02K11/215H02K11/25H02P29/60
    • An electric motor protection system for protecting an electric motor of a household appliance includes a temperature sensor for sensing a temperature of the electric motor, a motor speed sensor for sensing a speed of the electric motor, a current sensing circuit for sensing an electric current supplied to the electric motor, a power control device for controlling the electrical power supplied to the electric motor, and a signal processing unit electrically connected to the temperature sensor, the motor speed sensor, the current sensing circuit, and the power control device. The signal processing unit is configured to make calculations and judgments based on the measurements of the temperature sensor, the motor speed sensor and the current sensing circuit, and a plurality of predetermined values, and to control the power control device accordingly so as to protect the motor from overheating, being overloaded, or driven by excessive current.
    • 用于保护家用电器的电动机的电动机保护系统包括用于检测电动机的温度的温度传感器,用于感测电动机速度的电动机速度传感器,用于感测供给的电流的电流检测电路 电动机,用于控制提供给电动机的电力的电力控制装置,以及与温度传感器,电动机速度传感器,电流感测电路和电力控制装置电连接的信号处理单元。 信号处理单元被配置为基于温度传感器,电动机速度传感器和电流感测电路的测量值以及多个预定值进行计算和判断,并相应地控制功率控制装置,以保护 电机过热,过载或由过电流驱动。