The invention discloses an elevator braking control system. The elevator braking control system comprises two brakes, a power supply device, a detection unit and a control unit. One brake is powered by an elevator three-phase alternating current power source. The other brake of the two brakes is powered by the power supply device. The detection unit is connected to the elevator three-phase alternating current power source and used for detecting whether the elevator three-phase alternating current power source is under power failure or phase loss or not. The control unit is used for controllingelectric connection between the other brake and the power supply device. When the detection unit detects that the elevator three-phase alternating current power source is under power failure or phaseloss, the control unit does not immediately switch off electric connection between the other brake and the power supply device and switches off electric connection between the other brake and the power supply device after delaying a preset time. Thus, the deceleration during car braking can be effectively reduced, thus, stable braking of an elevator car can be achieved, and the safety and the comfort of an elevator are improved.
本发明公开一种电梯制动控制系统,包括:两组制动器,其中一组制动器由电梯三相交流电源供电;供电装置,所述两组制动器中的另一组制动器由所述供电装置供电;检测单元,连接至所述电梯三相交流电源,用于检测所述电梯三相交流电源是否断电或缺相;和控制单元,用于控制所述另一组制动器与所述供电装置之间的电连接。当所述检测单元检测到所述电梯三相交流电源断电或缺相时,所述控制单元不立刻切断所述另一组制动器与所述供电装置之间的电连接,而是在延迟预定时间之后才切断所述另一组制动器与所述供电装置之间的电连接。因此,本发明可大幅降低轿厢制动时的减速度,从而能够实现电梯轿厢的平稳制动,提高了电梯的安全性和舒适性。
Elevator braking control system
电梯制动控制系统
2020-09-01
Patent
Electronic Resource
Chinese