公开(公告)号：US20150053508A1

公开(公告)日：2015-02-26

申请号：US14533603

申请日：2014-11-05

Applicant: KONE Corporation

Inventor： Ari Kattainen ,  Pasi Raassina ,  Tapio Saarikoski ,  Lauri Stolt ,  Arto Nakari ,  Antti Kallioniemi

IPC: B66B1/30 ,  B66B5/02 ,  B66B1/32

CPC classification number: B66B5/02 ,  B66B1/30 ,  B66B1/32 ,  B66B5/00 ,  B66B5/0031 ,  B66B5/06 ,  B66B13/22

Abstract: A safety arrangement of an elevator, which includes sensors configured to indicate functions that are critical from the viewpoint of the safety of the elevator, and also a safety circuit, with which the data formed by the sensors indicating the safety of the elevator is read. The safety arrangement includes a drive device for driving the hoisting machine of the elevator. The drive device includes a DC bus, and also a motor bridge connected to the DC bus for the electricity supply of the elevator motor. The motor bridge includes high-side and low-side switches for supplying electric power from the DC bus to the elevator motor when driving with the elevator motor, and also from the elevator motor to the DC bus when braking with the elevator motor. The drive device also includes a control circuit of the motor bridge, with which control circuit the operation of the motor bridge is controlled by producing control pulses in the control poles of the high-side and low-side switches of the motor bridge, an input circuit for a safety signal, which safety signal can be disconnected/connected from outside the drive device, and also drive prevention logic, which is connected to the input circuit and is configured to prevent the passage of control pulses to the control poles of the high-side and/or low-side switches of the motor bridge when the safety signal is disconnected. The signal conductor of the safety signal is wired from the safety signal to the drive device, and the safety circuit comprises means for disconnecting/connecting the safety signal. The safety circuit is arranged to bring the elevator into a state preventing a run by disconnecting the safety signal, and the safety circuit is arranged to remove the state preventing a run by connecting the safety signal.

Abstract translation: 电梯的安全装置，其包括被配置为指示从电梯的安全性的观点来看至关重要的功能的传感器以及由传感器形成的指示电梯的安全性的数据的安全电路。 安全装置包括用于驱动电梯的曳引机的驱动装置。 驱动装置包括DC总线，以及连接到DC总线的马达桥，用于电梯电机的电力供应。 马达桥包括用于在与电梯马达一起驱动时从DC总线向电梯马达提供电力的高侧和低侧开关，以及当与电梯马达制动时从电梯马达向DC总线供电。 驱动装置还包括马达桥的控制电路，控制电路通过在马达桥的高侧和低侧开关的控制极中产生控制脉冲来控制马达桥的运行，输入 用于安全信号的电路，该安全信号可以从驱动装置的外部断开/连接，以及驱动防止逻辑，其连接到输入电路，并且被配置为防止控制脉冲通过到高电平的控制极 当安全信号断开时，电机桥的侧面和/或低侧开关。 安全信号的信号导线从安全信号连接到驱动装置，安全电路包括用于断开/连接安全信号的装置。 安全电路被布置成通过断开安全信号使电梯进入阻止运行的状态，并且安全电路被布置成通过连接安全信号来去除防止运行的状态。