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公开(公告)号：US09788458B2
公开(公告)日：2017-10-10
申请号：US14565363
申请日：2014-12-09
发明人： Songfa Tang , Chongsheng Zeng , Jianlong Feng , Zhongying Ji , Youping Mei
CPC分类号： H05K7/20418 , F04D25/06 , F04D25/068 , F04D27/00 , F04D27/004 , F04D29/5813 , H05K5/0026 , H05K5/0234
摘要： A motor controller, including: a supporting frame, a control circuit board, and a control box. The control box includes: a cavity, a base plate, and a plurality of fins. The control circuit board is disposed on the base plate in the cavity. The fins are disposed outside the cavity on an outer side surface of the base plate. Cooling ducts are formed between adjacent fins. The control box is fixed on the supporting frame.
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公开(公告)号：US10076061B2
公开(公告)日：2018-09-11
申请号：US15693422
申请日：2017-08-31
发明人： Songfa Tang , Chongsheng Zeng , Jianlong Feng , Zhongying Ji , Youping Mei
CPC分类号： H05K7/20418 , F04D25/06 , F04D25/068 , F04D27/00 , F04D27/004 , F04D29/5813 , H05K5/0026 , H05K5/0234
摘要： A fan system including a volute, a wind wheel, a motor, and a motor controller. The motor controller includes a control box including a plurality of fins for dissipating heat of the motor controller, and controls the operation of the motor to drive the wind wheel. The wind wheel is adapted to suck ambient air to form an air flow which passes through the plurality of fins.
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公开(公告)号：US09431937B2
公开(公告)日：2016-08-30
申请号：US14543807
申请日：2014-11-17
发明人： Wenqing Bian , Jianlong Feng , Yong Zhao
摘要： A method for increasing rotational speed range of an ECM motor, including: 1) starting the motor and initializing parameters; 2) reading the rotor position signal from the hall sensor by the microprocessor and updating the rotor angle; 3) reading the DC bus current I and the rotational speed n of the motor; 4) inputting a target rotational speed S from an external device, acquiring the target rotational speed S by the microprocessor, calculating the rotational difference e, and utilizing a rotational speed PI regulator to output a regulating parameter V_D; 5) calculating an advance angle α=F(I, n) by the microprocessor, and calculating a real-time angle of the rotor θ=ω×t by the microprocessor; and 6) calculating a PWM signal input into the inverter circuit, and outputting a PWM chopper voltage U by the inverter circuit, where U=F(V_D, θ+α).
摘要翻译： 一种用于增加ECM电动机的转速范围的方法，包括：1）启动电动机和初始化参数; 2）通过微处理器读取霍尔传感器的转子位置信号，并更新转子角度; 3）读取电机的直流母线电流I和转速n; 4）从外部装置输入目标转速S，由微处理器获取目标转速S，计算旋转差e，并利用转速PI调节器输出调节参数V_D; 5）由微处理器计算提前角α= F（I，n），并由微处理器计算转子的实时角θ=ω×t; 以及6）计算输入到所述逆变器电路的PWM信号，并且通过所述逆变器电路输出PWM斩波电压U，其中U = F（V_D，θ+α）。
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