WO2023241424A1 - 电梯抱闸控制电路及电梯 - Google Patents

电梯抱闸控制电路及电梯 Download PDF

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Publication number
WO2023241424A1
WO2023241424A1 PCT/CN2023/098739 CN2023098739W WO2023241424A1 WO 2023241424 A1 WO2023241424 A1 WO 2023241424A1 CN 2023098739 W CN2023098739 W CN 2023098739W WO 2023241424 A1 WO2023241424 A1 WO 2023241424A1
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WO
WIPO (PCT)
Prior art keywords
circuit
safety
elevator
output
control module
Prior art date
Application number
PCT/CN2023/098739
Other languages
English (en)
French (fr)
Inventor
王亮
白银河
葛尧
高尚
Original Assignee
苏州汇川控制技术有限公司
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Application filed by 苏州汇川控制技术有限公司 filed Critical 苏州汇川控制技术有限公司
Publication of WO2023241424A1 publication Critical patent/WO2023241424A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0018—Devices monitoring the operating condition of the elevator system
    • B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

Definitions

  • the present application relates to the field of elevator control, and in particular to an elevator brake control circuit and an elevator.
  • the elevator brake is an important device to ensure the safe operation of the elevator.
  • the brake coil needs to be energized to make it in the open state; when the elevator stops normally or in an emergency stop, the current of the brake coil needs to be cut off to keep the car stopped and ensure the safe stop of the elevator. .
  • the main purpose of this application is to provide an elevator brake control circuit and an elevator, aiming to solve the problem of low reliability of the existing elevator brakes.
  • this application provides an elevator brake control circuit, which includes: a safety control module, a power conversion circuit and a microprocessor.
  • the controlled end of the safety control module is connected to the elevator safety circuit.
  • the safety control module The input end of the module is connected to the microprocessor, and the output end of the safety control module is connected to the controlled end of the power conversion circuit;
  • the microprocessor is used to output control signals to the safety control module
  • the safety control module is used to open or close the electrical connection between the microprocessor and the power conversion circuit according to the output signal of the elevator safety circuit;
  • the safety control module is used to generate a safety signal according to the output power of the safety loop, and the safety signal is used to control the opening or closing of the transmission channel of the PWM control signal.
  • the safety control module includes a first transformer and an isolation module
  • the first transformer is used to generate safety power according to the output power of the safety circuit, and the safety power is used to control the start or stop of the isolation module.
  • the rectifier and filter circuit is used to convert the safety power supply into a power supply, and the power supply is used to control the activation of the first isolation chip and the second isolation chip.
  • the controlled end of the safety control module is connected to the end of the elevator safety circuit.
  • the elevator further includes an elevator controller, and the elevator safety circuit includes a safety circuit and a switch circuit; the controlled end of the switch circuit is used to connect to the elevator controller, and the switch circuit The input end is used to access the safety circuit, and the output end of the switch circuit is connected to the controlled end of the safety control module;
  • the switch circuit is used to conduct according to the closing signal sent by the elevator controller to transmit the output signal of the safety circuit to the safety control module; to open according to the shutdown signal sent by the elevator controller, to stop transmitting the output signal of the safety circuit.
  • the elevator further includes an elevator controller; the input end of the microprocessor is used to connect with the elevator controller;
  • the microprocessor is also used to output a control signal according to the brake opening signal sent by the elevator controller to control the power conversion circuit to supply power to the braking component; according to the brake signal sent by the elevator controller A stop signal is output to control the power conversion circuit to stop supplying power to the braking component.
  • the power conversion circuit includes a power conversion circuit, a second transformer and an output rectifier circuit; the controlled end of the power conversion circuit is the controlled end of the power conversion circuit, and the The output terminal is connected to the primary winding of the second transformer, and the secondary winding of the second transformer is connected to the input terminal of the output rectifier circuit.
  • the output terminal of the output rectifier circuit is the output of the power conversion circuit. end;
  • the power conversion circuit is used to convert the connected first DC power supply voltage according to the control signal and then transfer it to the secondary winding of the second transformer through the primary winding of the second transformer, so that The output rectifier circuit converts it into a second DC voltage and outputs it.
  • the power conversion circuit is one of the following circuits: a full-bridge topology circuit, a half-bridge topology circuit; and the output rectification circuit is one of the following circuits: a full-wave rectification circuit, or a full-bridge rectification circuit.
  • the present application also provides an elevator, including a safety circuit, a braking component, and an elevator brake control circuit as described above.
  • the elevator brake control circuit includes a safety control module, a power conversion circuit, and a microprocessor.
  • the controlled end of the safety control module is connected to the safety loop, the input end of the safety control module is connected to the microprocessor, and the output end of the safety control module is connected to the power conversion circuit. Controlled end connection;
  • the microprocessor is used to output control signals to the safety control module
  • the safety control module is used to open or close the electrical connection between the microprocessor and the power conversion circuit according to the output signal of the safety loop;
  • the power conversion circuit is used to control the power conversion circuit to supply power to the braking component according to the control signal.
  • the elevator brake control circuit includes a safety control module, a power conversion circuit and a microprocessor.
  • the controlled end of the safety control module is connected to the elevator safety circuit.
  • the input end of the safety control module is connected to the microprocessor, and the output end of the safety control module is connected to the controlled end of the power conversion circuit; wherein the microprocessor is used to output a control signal to the safety control module; the safety control module is used to open or close the electrical connection between the microprocessor and the power conversion circuit according to the output signal of the elevator safety circuit; the power conversion circuit is used to turn on or off the electrical connection between the microprocessor and the power conversion circuit according to the control The signal powers the elevator braking components.
  • Figure 1 is a functional module schematic diagram of an embodiment of the elevator brake control circuit of the present application
  • Figure 6 is a schematic circuit structure diagram of another embodiment of the elevator brake control circuit of the present application.
  • the elevator brake control circuit 100 includes a safety control module 10, a power conversion circuit 20 and a microprocessor 30.
  • the safety control module 10 The controlled end of the safety control module 10 is connected to the elevator safety circuit 200, the input end of the safety control module 10 is connected to the microprocessor 30, and the output end of the safety control module 10 is connected to the controlled end of the power conversion circuit 20.
  • the microprocessor 30 is used to output a control signal to the safety control module 10; the safety control module 10 is used to turn on or turn off the microprocessor according to the output signal of the elevator safety circuit 200
  • the electrical connection between 30 and the power conversion circuit 20; the power conversion circuit 20 is used to supply power to the elevator braking component 300 according to the control signal.
  • the safety control module 10 Only when the safety circuit 200 is turned on, the safety control module 10 is turned on, so that the control signal output by the microprocessor 30 can be transmitted to the power conversion circuit 20 to control the power conversion circuit 20 to supply power to the braking component 300 , so that the elevator brake opens and the elevator car runs; or the microprocessor 30 outputs a signal through the safety control module 10 to control the power conversion circuit 20 to stop supplying power to the braking component 300, so that the elevator brake holds the brake and the elevator car runs. Stop running.
  • the safety circuit 200 When any safety switch in the safety circuit 200 is disconnected, the safety circuit 200 is disconnected and triggers the safety control module 10 to shut down, thereby disconnecting the electrical connection between the microprocessor 30 and the power conversion circuit 20, When the power conversion circuit 20 fails to receive a control signal, it stops supplying power to the braking component 300, so that the brake is applied and the car stops running.
  • the controlled end of the safety control module 10 is connected to the elevator safety circuit 200, and the input end of the safety control module 10 is connected to the microprocessor. 30 is connected, and the output end is connected to the controlled end of the power conversion circuit 20; wherein, the microprocessor 30 is used to output a control signal to the safety control module 10 through the safety control module 10; the safety control module 10
  • the power conversion circuit 20 is used to turn on or off the electrical connection between the microprocessor 30 and the power conversion circuit 20 according to the output signal of the elevator safety circuit 200; the power conversion circuit 20 is used to provide power to the elevator according to the control signal.
  • the brake components are powered by 300.
  • the microprocessor 30 is used to output a PWM (Pulse width modulation, pulse width modulation) control signal to the safety control module 10 ; the safety control module 10 is used according to the safety loop 200 The output power supply generates a safety signal, and the safety signal is used to control the transmission channel of the PWM control signal to be turned on or off.
  • PWM Pulse width modulation, pulse width modulation
  • the output power of the safety loop 200 is determined by the safety loop power supply.
  • the safety loop power supply needs to be selected according to different elevator systems, such as 110V/220V high-voltage AC power supply, or 24V/48V DC power supply.
  • the safety control module 10 is used to generate a safety signal according to the output power of the safety circuit 200.
  • the safety signal can open or close the transmission channel inside the safety control module 10 for outgoing PWM control signals, thereby transmitting PWM. control signal to the power conversion circuit 20.
  • the power conversion circuit 20 may be a power conversion circuit of a switching power supply, and the PWM control signal is used to control the working state of the power conversion circuit 20 . Therefore, no matter whether the components of the safety control module 10 or the switching power supply itself fail, the secondary side of the switching power supply will not supply power to the braking component 300. Therefore, if any component in this embodiment is abnormal, the elevator car will Keep it in the stopped state to ensure higher safety of the elevator.
  • the microprocessor 30 is used to output a PWM control signal to the safety control module 10;
  • the safety control module 10 includes a first transformer T1 and an isolation module 11; the first The transformer T1 is used to generate safety power according to the output power of the safety circuit 200 , and the safety power is used to control the starting or stopping of the isolation module 11 .
  • the output power supply of the elevator safety circuit 200 may be 110V/220V AC power
  • the first transformer T1 is used to convert the high-voltage power into a low-voltage AC safety power supply.
  • the first transformer T1 is connected to the elevator safety circuit 200 and the isolation module 11 respectively, and the isolation module 11 is also connected to the microprocessor 30 and the controlled end of the power conversion circuit 20;
  • the first transformer T1 is used to generate safety power according to the output power of the safety circuit 200.
  • the safety power is used as the starting power of the isolation module 11 and is used to control the starting or stopping of the isolation module 11.
  • the isolation module 11 starts according to the safety power supply and opens the electrical connection between the microprocessor 30 and the power conversion circuit 20; it stops when the isolation module 11 does not receive the safety power supply and turns off the microprocessor 30 and the power conversion circuit 20. Electrical connections between power conversion circuits 20. Thus, the path between the microprocessor 30 and the power conversion circuit 20 is controlled according to the state of the safety circuit 200, thereby ensuring the safety of the elevator.
  • the safety control module 10 also includes a rectifier filter circuit 12, a first isolation chip U1 and a second isolation chip U2; the input end of the first transformer T1 is connected to the elevator safety In the loop 200, the output end of the first transformer T1 is connected to the input end of the rectifier and filter circuit 12, and the output end of the rectifier and filter circuit 12 is respectively connected to the power end of the first isolation chip U1 and the second
  • the power end of the isolation chip U2 is connected, the input end of the first isolation chip U1 is connected with the microprocessor 30, the output end of the first isolation chip U1 is connected with the input end of the second isolation chip U2,
  • the output end of the second isolation chip U2 is connected to the controlled end of the power conversion circuit 20; the rectification and filtering circuit 12 is used to convert the safety power supply into a power supply; the power supply is used to control the The first isolation chip U1 and the second isolation chip U2 are started.
  • the rectifier and filter circuit 12 converts the safety power supply into a power supply adapted to the first isolation chip U1 and the second isolation chip U2.
  • the input end (enable) of the primary winding of the first transformer T1 is connected to the elevator safety circuit 200, and the output end of the primary winding is connected to ground; the secondary winding is connected to the rectifier filter circuit 12; the rectifier filter circuit 12 may include a rectifier circuit and a filter capacitor. , there is no need to specifically limit it.
  • the first transformer T1 and the rectifier filter circuit 12 start to work and output the power supply.
  • the first isolation chip U1 and the second isolation chip U2 are both started according to the power supply.
  • the input terminal of the first isolation chip U1 and the output end are connected, and the input end and the output end of the second isolation chip U2 are connected, so that the microprocessor 30 and the power conversion circuit 20 are connected through the first isolation chip U1 and the second isolation chip U2; the microprocessor 30 is connected through the pair
  • the control of the power conversion circuit 20 realizes the control of the braking component 300 .
  • two isolation chips are provided so that the path between the microprocessor 30 and the power conversion circuit 20 is completely isolated and free from interference from other signals, further meeting safety requirements.
  • the controlled end of the safety control module 10 is connected to the end of the elevator safety circuit 200 . Therefore, when any safety switch in the safety circuit 200 is turned off, it will not receive the output power of the safety circuit 200, and the safety control module 10 will disconnect the microprocessor 30 and the power conversion circuit 20, causing the elevator brake to further Improve elevator safety.
  • the elevator further includes an elevator controller 400; the input end of the microprocessor 30 is used to connect with the elevator controller 400; the microprocessor 30 is also used to The elevator controller 400 outputs a control signal according to the brake opening signal to control the power conversion circuit 20 to supply power to the braking component 300; and outputs a stop signal according to the brake signal issued by the elevator controller 400 to control The power conversion circuit 20 stops supplying power to the braking component 300 .
  • the elevator controller 400 may be the main board of the elevator, which is used to collect the operating status of the elevator, output corresponding control instructions, and control the correct and safe operation of the elevator.
  • the control instructions output by the elevator controller 400 include a brake signal to control the elevator brake to brake and a brake opening signal to stop braking.
  • the microprocessor 30 receives the brake opening signal, it outputs a control signal for controlling the power conversion circuit 20 to start working to control the microprocessor 30 to supply power to the elevator braking component 300; when the microprocessor 30 receives the brake signal , output a control signal used to control the power conversion circuit 20 to stop output, so as to control the microprocessor 30 to stop powering the elevator braking component 300 and power off the braking component 300.
  • the elevator controller 400 can first detect the status of the safety circuit 200, and when the safety circuit 200 is disconnected, output the brake signal to the microprocessor 30. If the safety control module 10 is abnormal and does not disconnect at this time, the elevator control The controller 400 can still trigger the braking component 300 through the microprocessor 30 to cause the elevator brake to hold; thereby making the elevator brake control safer.
  • the elevator further includes an elevator controller 400.
  • the elevator safety circuit 200 includes a safety circuit 202 and a switch circuit 201; the controlled end of the switch circuit 201 is used to connect to the elevator controller 400. , the input end of the switch circuit 201 is used to connect to the safety circuit 202, and the output end of the switch circuit 201 is connected to the controlled end of the safety control module 10;
  • the switch circuit 201 is used to conduct according to the closing signal sent by the elevator controller 400 to transmit the output signal of the safety circuit 202 to the safety control module 10; according to the switch signal sent by the elevator controller 400 The interrupt signal is disconnected to stop transmitting the output signal of the safety circuit 202.
  • the safety circuit 202 may include a safety circuit power supply and a safety switch in each safety component of the elevator.
  • the switch circuit 201 may also be provided at the end of the safety circuit 202.
  • the elevator controller 400 can control whether the safety control module 10 can receive the output power of the safety circuit 202 and thereby turn it on or off, so that the safety control module 10 is equivalent to the "control" of the brake control circuit 100.
  • end the switching power supply serves as the "execution end", forming an isolated control circuit to control the power on or off of the brake coil.
  • the elevator controller 400 and the safety circuit 202 can be dual-controlled by the elevator controller 400 and the safety circuit 202, which further enhances the reliability of the elevator brake control, and the possibility of failure of both the elevator controller 400 and the safety circuit 202 is low, which also improves the safety of the elevator. higher.
  • the power conversion circuit 20 includes a power conversion circuit 21, a second transformer T2 and an output rectifier circuit 22; the controlled end of the power conversion circuit 21 is the controlled end of the power conversion circuit 20. terminal, the output terminal of the power conversion circuit 21 is connected to the primary winding of the second transformer T2, and the secondary winding of the second transformer T2 is connected to the input terminal of the output rectifier circuit 22.
  • the output rectifier The output end of the circuit 22 is the output end of the power conversion circuit 20; the power conversion circuit 21 is used to convert the connected first DC power supply voltage according to the PWM control signal and then pass it through the second transformer T2 The primary winding is transferred to the secondary winding of the second transformer T2, so that the output rectifier circuit 22 converts it into the second DC voltage and outputs it.
  • the switching power supply 20 may also include an AC power input terminal and an input rectifier circuit.
  • the AC power input terminal is used to input AC power.
  • the AC power supply can be selected according to actual needs.
  • the input rectifier circuit is used to The AC power supply is rectified into a first DC power supply Vin, and the voltage of the first DC power supply Vin can also be set according to actual conditions.
  • the switching power supply 20 may also include a filter circuit, a sampling circuit, an overvoltage protection circuit and other circuits, which may be configured according to actual needs with reference to common technologies in the field.
  • the microprocessor 30 is used to generate a PWM control signal with a corresponding duty cycle according to the feedback signal of the output rectifier circuit 22.
  • the multiple switching tubes in the power conversion circuit 21 convert the input first DC power supply voltage into The high-frequency AC voltage is applied to the primary winding of the second transformer T2.
  • the secondary winding of the second transformer T2 senses the AC voltage and then passes through the output rectifier circuit 22, and is finally converted into a stable second DC voltage and output to the brake.
  • Part 300 is powered.
  • the feedback signal of the output rectifier circuit 22 may include the output current signal sampled by the sampling circuit provided at the output end and the input current signal sampled by the sampling circuit provided at the input end.
  • the second transformer T2 can be a high-frequency transformer to realize energy transmission or energy storage.
  • the use of a high-frequency transformer can also reduce the space occupied by the transformer (the transformer is small in size) and improve work efficiency.
  • the circuit structure of the power conversion circuit 21 may be a full-bridge topology or a half-bridge topology.
  • the power conversion circuit 21 may include a first switching tube Q1, a second switching tube Q2, a third switching tube Q3 and a fourth switching tube Q4, wherein the first to fourth switching tubes
  • IGBT Insulated Gate Bipolar Transistor
  • MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor, Metal Oxide Semiconductor Field Effect Transistor
  • the output rectifier circuit 22 may include a first diode D1, a second diode D2, a first inductor Lf and a first capacitor Co; the second transformer T2 includes a first secondary winding NS1 and a second secondary winding NS1. Winding NS2; the same-name terminal of the first secondary winding NS1 is connected to the same-name terminal of the second secondary winding NS2, and the same-name terminal of the first secondary winding NS1 is connected to the same-name terminal of the first diode D1.
  • the anode is connected, the opposite end of the second secondary winding NS2 is connected to the anode of the second diode D2, the cathode of the first diode D1 and the cathode of the second diode D2 are respectively
  • the first terminal of the first inductor Lf is connected to the first terminal of the first capacitor Co.
  • the second terminal of the first capacitor Co is connected to the first terminal of the first capacitor Co.
  • the two ends of the same name of the two secondary windings NS2 are connected; the two ends of the first capacitor Co are the output ends of the output rectifier circuit 22 and are respectively connected to the two ends of the brake coil.
  • the output rectifier circuit 22 adopts a full-wave rectifier circuit, which has fewer rectifier components and lower cost, thereby reducing the cost of the entire elevator brake control circuit 100.
  • the third diode D3 The cathode of and the cathode of the fifth diode D5 are respectively connected to the first end of the second inductor Lf2, and the second end of the second inductor Lf2 is connected to the first end of the second capacitor Co2, The second end of the second capacitor Co2 is connected to the anode of the fourth diode D4 and the anode of the sixth diode D6 respectively; both ends of the second capacitor Co2 are the output rectifier circuit.
  • the output end of 22 is connected to both ends of the brake coil respectively.
  • the output rectifier circuit 22 adopts a full-bridge rectifier circuit, which has a higher transformer utilization rate and higher conversion efficiency than a full-wave rectifier circuit.
  • this solution provides an isolated and high-security brake control circuit. Compared with the existing circuit, the brake contactor is eliminated and the fault caused by the abnormality of the brake contactor is avoided. It also avoids the operation noise of the brake contactor when the elevator stops, which improves the elevator experience. In addition, the switching power supply provides isolated power to the brake coil, which improves the safety of the brake control.
  • This application also provides an elevator, which includes a safety circuit, a braking component and an elevator brake control circuit.
  • the structure of the elevator brake control circuit can be referred to the above embodiment, including a safety control module, a power conversion circuit and a microprocessor.
  • the controlled end of the safety control module is connected to the safety loop, the input end of the safety control module is connected to the microprocessor, and the output end of the safety control module is connected to the power conversion circuit.
  • the controlled end is connected; the microprocessor is used to output a control signal to the safety control module; the safety control module is used to turn on or off the microprocessor and the power conversion according to the output signal of the safety loop electrical connection between circuits; the power conversion circuit is used to control the power conversion circuit to supply power to the braking component according to the control signal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Elevator Control (AREA)

Abstract

一种电梯抱闸控制电路及电梯，该电梯抱闸控制电路包括安全控制模块(10)、电源转换电路(20)及微处理器(30)；安全控制模块的受控端接入电梯安全回路(200)中，安全控制模块的输入端与微处理器连接，安全控制模块的输出端与电源转换电路的受控端连接；其中，微处理器用于输出控制信号至安全控制模块；安全控制模块用于根据电梯安全回路的输出信号开通或关断微处理器与电源转换电路之间的电连接；电源转换电路用于根据控制信号为电梯制动部件供电。该电梯抱闸控制电路取消了抱闸接触器，避免了接触器异常导致的电梯故障以及抱闸接触器的动作噪音。

Description

电梯抱闸控制电路及电梯
本申请要求于2022年6月16日申请的、申请号为202210680726.9的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电梯控制领域，尤其涉及一种电梯抱闸控制电路及电梯。
 背景技术
我国电梯行业历经数十年的发展，电梯已经成为现代社会城镇化建设中必不可少的重要建筑设备之一，也是人们生活中不可或缺的一部分，与此同时电梯安全也越来越受到人们的重视。
其中，电梯制动器是保证电梯安全运行的重要装置。在电梯上升或下落时，需要给制动器的抱闸线圈通电，使其处于开闸状态；在电梯正常停靠或紧急停靠时，需要切断抱闸线圈的电流，使轿厢保持停止，保证电梯安全停靠。
目前切断制动器供电主要通过接触器来实现，在无机房电梯和家用梯使用时，接触器断开时存在触点拉弧现象，导致接触器故障率高，甚至停梯困人。使得电梯的制动可靠性不高，很难满足人们对电梯高安全性的需求。
 技术问题
本申请的主要目的在于提供一种电梯抱闸控制电路及电梯，旨在解决现有电梯制动可靠性不高的问题。
 技术解决方案
为了实现上述目的，本申请提供一种电梯抱闸控制电路，包括：安全控制模块、电源转换电路及微处理器，所述安全控制模块的受控端接入电梯安全回路中，所述安全控制模块的输入端与所述微处理器连接，所述安全控制模块的输出端与所述电源转换电路的受控端连接；其中，
所述微处理器，用于输出控制信号至所述安全控制模块；
所述安全控制模块，用于根据所述电梯安全回路的输出信号开通或关断所述微处理器与所述电源转换电路之间的电连接；
所述电源转换电路，用于根据所述控制信号为电梯制动部件供电。
在一实施例中，所述微处理器，用于输出PWM控制信号至所述安全控制模块；
所述安全控制模块，用于根据所述安全回路的输出电源生成安全信号，所述安全信号，用于控制所述PWM控制信号的传输通道开通或关断。
在一实施例中，所述微处理器，用于输出PWM控制信号至所述安全控制模块；
所述安全控制模块，包括第一变压器和隔离模块；
所述第一变压器用于根据所述安全回路的输出电源生成安全电源，所述安全电源，用于控制所述隔离模块的启动或停止。
在一实施例中，所述安全控制模块还包括整流滤波电路，所述隔离模块包括第一隔离芯片和第二隔离芯片；所述第一变压器的输入端接入所述电梯安全回路，所述第一变压器的输出端与所述整流滤波电路的输入端连接，所述整流滤波电路的输出端分别与所述第一隔离芯片的电源端和所述第二隔离芯片的电源端连接，所述第一隔离芯片的输入端与所述微处理器连接，所述第一隔离芯片的输出端与所述第二隔离芯片的输入端连接，所述第二隔离芯片的输出端与所述电源转换电路的受控端连接；
所述整流滤波电路，用于将所述安全电源转换为供电电源，所述供电电源用于控制所述第一隔离芯片和所述第二隔离芯片启动。
在一实施例中，所述安全控制模块的受控端与所述电梯安全回路的末端连接。
在一实施例中，所述电梯还包括电梯控制器，所述电梯安全回路包括安全电路和开关电路；所述开关电路的受控端用于与所述电梯控制器连接，所述开关电路的输入端用于接入所述安全电路，所述开关电路的输出端与所述安全控制模块的受控端连接；
所述开关电路，用于根据所述电梯控制器发出的闭合信号导通，以传输所述安全电路的输出信号至所述安全控制模块；根据所述电梯控制器发出的关断信号断开，以停止传输所述安全电路的输出信号。
在一实施例中，所述电梯还包括电梯控制器；所述微处理器的输入端用于与所述电梯控制器连接；
所述微处理器，还用于根据所述电梯控制器发出的开闸信号输出控制信号，以控制所述电源转换电路为所述制动部件供电；根据所述电梯控制器发出的抱闸信号输出停止信号，以控制所述电源转换电路停止为所述制动部件供电。
在一实施例中，所述电源转换电路包括功率变换电路、第二变压器和输出整流电路；所述功率变换电路的受控端为所述电源转换电路的受控端，所述功率变换电路的输出端与所述第二变压器的原边绕组连接，所述第二变压器的副边绕组与所述输出整流电路的输入端连接，所述输出整流电路的输出端为所述电源转换电路的输出端；
所述功率变换电路，用于根据所述控制信号将接入的第一直流电源电压进行转换后通过所述第二变压器的原边绕组传递到所述第二变压器的副边绕组，以使所述输出整流电路将其转换为第二直流电压并输出。
在一实施例中，所述功率变换电路为以下任意电路之一：全桥拓扑电路、半桥拓扑电路；所述输出整流电路为以下任意电路之一：全波整流电路、全桥整流电路。
此外，为实现上述目的，本申请还提供一种电梯，包括安全回路、制动部件以及如上述的电梯抱闸控制电路，所述电梯抱闸控制电路包括安全控制模块、电源转换电路及微处理器，所述安全控制模块的受控端接入所述安全回路中，所述安全控制模块的输入端与所述微处理器连接，所述安全控制模块的输出端与所述电源转换电路的受控端连接；
所述微处理器，用于输出控制信号至所述安全控制模块；
所述安全控制模块，用于根据所述安全回路的输出信号开通或关断所述微处理器与所述电源转换电路之间的电连接；
所述电源转换电路，用于根据所述控制信号控制所述电源转换电路为所述制动部件供电。
 有益效果
本申请提供一种电梯抱闸控制电路及电梯，该电梯抱闸控制电路包括安全控制模块、电源转换电路及微处理器，所述安全控制模块的受控端接入电梯安全回路中，所述安全控制模块的输入端与所述微处理器连接，所述安全控制模块的输出端与所述电源转换电路的受控端连接；其中，所述微处理器用于输出控制信号至所述安全控制模块；所述安全控制模块用于根据所述电梯安全回路的输出信号开通或关断所述微处理器与所述电源转换电路之间的电连接；所述电源转换电路用于根据所述控制信号为电梯制动部件供电。由此在安全回路正常导通时，安全控制模块导通，微处理器控制电源转换电路对电梯制动部件上电或下电；并且在安全回路出现异常时不会给制动部件上电，使电梯轿厢处于停止状态，进一步保证电梯安全。与现有技术相比，取消了抱闸接触器，避免了由抱闸接触器异常导致的停梯困人状况发生，也避免了抱闸接触器的动作噪声，提高电梯的体验感。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请电梯抱闸控制电路一实施例的功能模块示意图；
图2为本申请电梯抱闸控制电路一实施例的部分功能模块示意图；
图3为本申请电梯抱闸控制电路一实施例的部分电路结构示意图；
图4为本申请电梯抱闸控制电路另一实施例的功能模块示意图；
图5为本申请电梯抱闸控制电路一实施例的电路结构示意图；
图6为本申请电梯抱闸控制电路另一实施例的电路结构示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
附图标号说明：
标号 名称 标号 名称
100 电梯抱闸控制电路 22 输出整流电路
200 安全回路 T1 第一变压器
300 制动部件 T2 第二变压器
400 电梯控制器 U1 第一隔离芯片
10 安全控制模块 U2 第二隔离芯片
20 电源转换电路 D1~D6 第一二极管～第六二极管
30 微处理器 Co 第一电容
201 开关电路 Co2 第二电容
202 安全电路 Lf 第一电感
11 隔离模块 Lf2 第二电感
12 整流滤波电路 Q1~Q8 第一开关管～第八开关管
21 功率变换电路    
本发明的实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提供一种电梯抱闸控制电路，参照图1，在一实施例中，该电梯抱闸控制电路100包括安全控制模块10、电源转换电路20及微处理器30，所述安全控制模块10的受控端接入电梯安全回路200中，所述安全控制模块10的输入端与所述微处理器30连接，所述安全控制模块10的输出端与所述电源转换电路20的受控端连接；其中，所述微处理器30用于输出控制信号至所述安全控制模块10；所述安全控制模块10用于根据所述电梯安全回路200的输出信号开通或关断所述微处理器30与所述电源转换电路20之间的电连接；所述电源转换电路20用于根据所述控制信号为电梯制动部件300供电。
上述电梯抱闸控制电路100用于电梯，上述电梯制动部件300可以为电梯制动器中的抱闸线圈，通过为该抱闸线圈供电或断电，使制动器中的其它部件开闸或抱闸，对应控制轿厢运行或停止运行。
可以理解的，为保证电梯能安全地运行，在电梯上装有许多安全部件，只有每个安全部件都正常的情况下，电梯才能运行，否则电梯立即停止运行。具体是在电梯各安全部件都装有一个安全开关，把所有的安全开关串联在安全回路200中，只有在所有安全开关都接通的情况下，安全回路200才导通，电梯才能得电运行。因此，将安全控制模块10接入安全回路200中，在安全回路200断开时，制动部件300也不能得电，电梯仍是制动状态，保证了电梯的安全性。
只有当安全回路200导通时，安全控制模块10才导通，使微处理器30输出的控制信号可以传输至电源转换电路20，以控制所述电源转换电路20为所述制动部件300供电，从而电梯制动器开闸，电梯轿厢运行；或者微处理器30经安全控制模块10输出信号控制所述电源转换电路20停止为所述制动部件300供电，从而电梯制动器抱闸，电梯轿厢停止运行。
当安全回路200中的任意一个安全开关断开时，安全回路200断开并触发安全控制模块10关断，从而断开所述微处理器30与所述电源转换电路20之间的电连接，所述电源转换电路20接收不到控制信号便停止为所述制动部件300供电，从而制动器抱闸，轿厢停止运行。
通过设置安全控制模块10、电源转换电路20及微处理器30，所述安全控制模块10的受控端接入电梯安全回路200中，所述安全控制模块10的输入端与所述微处理器30连接，输出端与所述电源转换电路20的受控端连接；其中，所述微处理器30用于经安全控制模块10输出控制信号至所述安全控制模块10；所述安全控制模块10用于根据所述电梯安全回路200的输出信号开通或关断所述微处理器30与所述电源转换电路20之间的电连接；所述电源转换电路20用于根据所述控制信号为电梯制动部件供电300。由此，在安全回路200正常导通时，安全控制模块10导通，微处理器30控制电源转换电路20对电梯制动部件300上电或下电，以使电梯轿厢运行或停止；并且在安全回路200出现异常时不会给制动部件300上电，使电梯轿厢处于停止状态，进一步保证了电梯安全。与现有技术相比，取消了抱闸接触器，避免了由抱闸接触器异常导致的停梯困人状况发生，也避免了抱闸接触器的动作噪声，提高了电梯带给乘客和周围居民的体验感。
在一实施例中，所述微处理器30用于输出PWM（Pulse width modulation，脉冲宽度调制）控制信号至所述安全控制模块10；所述安全控制模块10用于根据所述安全回路200的输出电源生成安全信号，所述安全信号用于控制所述PWM控制信号的传输通道开通或关断。
本实施例中，所述安全回路200的输出电源由安全回路电源决定，安全回路电源具体需要根据电梯系统的不同对应选取，例如为110V/220V高压交流电源，或者为24V/48V的直流电源。
所述安全控制模块10用于根据所述安全回路200的输出电源生成安全信号，所述安全信号可以使得安全控制模块10内部用于传出PWM控制信号的传输通道开通或关断，从而传输PWM控制信号至电源转换电路20。
电源转换电路20可以为开关电源的电源转换电路，PWM控制信号用于控制电源转换电路20的工作状态。由此，无论是安全控制模块10的器件还是开关电源本身的器件失效，开关电源的副边都不会给制动部件300供电，从而本实施例中任何一处器件出现异常，电梯轿厢都会保持在停止状态，保证电梯较高的安全性。
参照图2，在一实施例中，所述微处理器30用于输出PWM控制信号至所述安全控制模块10；所述安全控制模块10包括第一变压器T1和隔离模块11；所述第一变压器T1用于根据所述安全回路200的输出电源生成安全电源，所述安全电源用于控制所述隔离模块11的启动或停止。
本实施例中，电梯安全回路200的输出电源可以为110V/220V交流电，第一变压器T1用于将该高压电转换为低压交流的安全电源。所述第一变压器T1分别与所述电梯安全回路200和所述隔离模块11连接，所述隔离模块11还与所述微处理器30和所述电源转换电路20的受控端连接；所述第一变压器T1用于根据所述安全回路200的输出电源生成安全电源，所述安全电源作为隔离模块11的启动电源，用于控制所述隔离模块11启动或停止。隔离模块11根据安全电源启动，开通所述微处理器30与所述电源转换电路20之间的电连接；隔离模块11未接收到安全电源时停止，关断所述微处理器30与所述电源转换电路20之间的电连接。从而实现根据安全回路200的状态对微处理器30与电源转换电路20之间通路的控制，保证电梯的安全。
参照图3，在一实施例中，所述安全控制模块10还包括整流滤波电路12、第一隔离芯片U1和第二隔离芯片U2；所述第一变压器T1的输入端接入所述电梯安全回路200，所述第一变压器T1的输出端与所述整流滤波电路12的输入端连接，所述整流滤波电路12的输出端分别与所述第一隔离芯片U1的电源端和所述第二隔离芯片U2的电源端连接，所述第一隔离芯片U1的输入端与所述微处理器30连接，所述第一隔离芯片U1的输出端与所述第二隔离芯片U2的输入端连接，所述第二隔离芯片U2的输出端与所述电源转换电路20的受控端连接；所述整流滤波电路12用于将所述安全电源转换为供电电源；所述供电电源用于控制所述第一隔离芯片U1和所述第二隔离芯片U2启动。
本实施例中，整流滤波电路12将安全电源转换为适配于第一隔离芯片U1和第二隔离芯片U2的供电电源。其中，第一变压器T1原边绕组的输入端（使能）连接电梯安全回路200，原边绕组的输出端接地；副边绕组连接整流滤波电路12；整流滤波电路12可以包括整流电路和滤波电容，具体不需要限定。
在电梯安全回路200输出电源时，第一变压器T1和整流滤波电路12开始工作，输出供电电源，第一隔离芯片U1和第二隔离芯片U2均根据供电电源启动，第一隔离芯片U1的输入端和输出端导通、第二隔离芯片U2的输入端和输出端导通，从而微处理器30和电源转换电路20经第一隔离芯片U1和第二隔离芯片U2连接；微处理器30通过对电源转换电路20的控制实现对制动部件300的控制。本实施例中设置两个隔离芯片，使得微处理器30与电源转换电路20之间的通路完全隔离，不受其它信号干扰，进一步满足安全要求。
在一实施例中，所述安全控制模块10的受控端与所述电梯安全回路200的末端连接。从而安全回路200中任何一个安全开关断开时都接收不到安全回路200的输出电源，安全控制模块10都会断开微处理器30与电源转换电路20之间的连接，使得电梯抱闸，进一步提升电梯安全性。
参照图4，在一实施例中，所述电梯还包括电梯控制器400；所述微处理器30的输入端用于与所述电梯控制器400连接；所述微处理器30还用于根据所述电梯控制器400发出的开闸信号输出控制信号，以控制所述电源转换电路20为所述制动部件300供电；根据所述电梯控制器400发出的抱闸信号输出停止信号，以控制所述电源转换电路20停止为所述制动部件300供电。
本实施例中，所述电梯控制器400可以为电梯的主板，用于采集电梯运行状态、输出相应的控制指令、控制电梯正确安全运行。其中，电梯控制器400输出的控制指令包括控制电梯制动器进行制动的抱闸信号和停止制动的开闸信号。当微处理器30接收到开闸信号时，输出用于控制电源转换电路20开始工作的控制信号，以控制微处理器30对电梯制动部件300供电；微处理器30接收到抱闸信号时，输出用于控制电源转换电路20停止输出的控制信号，以控制微处理器30停止对电梯制动部件300供电，使制动部件300下电。
进一步地，电梯控制器400可以先检测安全回路200的状态，在安全回路200断开时，向微处理器30输出抱闸信号，若此时安全控制模块10出现异常没有断开，则电梯控制器400通过微处理器30仍可以触发制动部件300，使电梯制动器抱闸；进而使得电梯抱闸控制的安全性更高。
在一实施例中，所述电梯还包括电梯控制器400，所述电梯安全回路200包括安全电路202和开关电路201；所述开关电路201的受控端用于与所述电梯控制器400连接，所述开关电路201的输入端用于接入所述安全电路202，所述开关电路201的输出端与所述安全控制模块10的受控端连接；
所述开关电路201，用于根据所述电梯控制器400发出的闭合信号导通，以传输所述安全电路202的输出信号至所述安全控制模块10；根据所述电梯控制器400发出的关断信号断开，以停止传输所述安全电路202的输出信号。
本实施例中，所述安全电路202可以包括安全回路电源和电梯中各安全部件中的安全开关，开关电路201也可以设置在安全电路202的末端。通过设置开关电路201，电梯控制器400可以控制安全控制模块10是否能够接收安全电路202的输出电源，从而导通或断开，使得该安全控制模块10相当于该抱闸控制电路100的“控制端”，开关电源作为“执行端”，形成隔离型控制电路，控制抱闸线圈上电或下电。从而可以由电梯控制器400和安全电路202双重控制，更加增强了电梯抱闸控制的可靠性，且电梯控制器400和安全电路202两处均失效的可能性较低，也使得电梯的安全性较高。
参照图5，在一实施例中，电源转换电路20包括功率变换电路21、第二变压器T2和输出整流电路22；所述功率变换电路21的受控端为所述电源转换电路20的受控端，所述功率变换电路21的输出端与所述第二变压器T2的原边绕组连接，所述第二变压器T2的副边绕组与所述输出整流电路22的输入端连接，所述输出整流电路22的输出端为所述电源转换电路20的输出端；所述功率变换电路21用于根据所述PWM控制信号将接入的第一直流电源电压进行转换后通过所述第二变压器T2的原边绕组传递到所述第二变压器T2的副边绕组，以使所述输出整流电路22将其转换为所述第二直流电压并输出。
本实施例中，开关电源20还可以包括交流电源输入端和输入整流电路，所述交流电源输入端用于输入交流电源，所述交流电源可以根据实际需要选取，所述输入整流电路用于将所述交流电源经整流为第一直流电源Vin，所述第一直流电源Vin的电压大小也可以根据实际情况进行设置。开关电源20中还可以包括滤波电路、采样电路和过压保护电路等电路，可以结合实际需要参考本领域常用技术进行设置。
微处理器30用于根据输出整流电路22的反馈信号生成具有相应占空比的PWM控制信号，功率变换电路21中的多个开关管根据PWM控制信号将输入的第一直流电源电压转换为高频交流电压，施加到第二变压器T2的原边绕组，第二变压器T2的副边绕组感应到该交流电压再经过输出整流电路22，最终转换为稳定的第二直流电压并输出给制动部件300供电。输出整流电路22的反馈信号可以包括设置于输出端的采样电路采样到的输出电流信号和设置于输入端的采样电路采样到输入电流信号等信号。
由于第二变压器T2的原边绕组和副边绕组相互绝缘，所以通过第二变压器T2实现了交流电源输入或第一直流电源与第二直流电压输出之间的电气隔离。其中，所述第二变压器T2可以选用高频变压器，实现能量的传递或能量的储存，选用高频变压器还可减小变压器占用空间（变压器体积小），提高工作效率。
所述功率变换电路21的电路结构可以为全桥拓扑或半桥拓扑。如图5所示，所述功率变换电路21可以包括第一开关管Q1、第二开关管Q2、第三开关管Q3和第四开关管Q4，其中所述第一开关管~第四开关管可以选用IGBT（Insulated Gate Bipolar Transistor，绝缘栅双极型晶体管）或者MOSFET（Metal-Oxide-Semiconductor Field-Effect Transistor，金氧半场效晶体管）。
所述输出整流电路22可以包括第一二极管D1、第二二极管D2、第一电感Lf和第一电容Co；所述第二变压器T2包括第一副边绕组NS1和第二副边绕组NS2；所述第一副边绕组NS1的异名端和所述第二副边绕组NS2的同名端连接，所述第一副边绕组NS1的同名端与所述第一二极管D1的阳极连接，所述第二副边绕组NS2的异名端与所述第二二极管D2的阳极连接，所述第一二极管D1的阴极和所述第二二极管D2的阴极分别与所述第一电感Lf的第一端连接，所述第一电感Lf的第二端与所述第一电容Co的第一端连接，所述第一电容Co的第二端与所述第二副边绕组NS2的同名端连接；所述第一电容Co的两端为所述输出整流电路22的输出端，分别与抱闸线圈的两端连接。本实施例中，所述输出整流电路22采用全波整流电路，整流器件较少，成本较低，降低整个电梯抱闸控制电路100的成本。
参照图6，在一实施例中，所述第二变压器T2包括第三副边绕组NS3，所述输出整流电路22包括第三二极管D3、第四二极管D4、第五二极管D5、第六二极管D6、第二电感Lf2和第二电容Co2；所述第三副边绕组NS3的同名端分别与所述第三二极管D3的阳极和所述第四二极管D4的阴极连接，所述第三副边绕组NS3的异名端分别与所述第五二极管D5的阳极和所述第六二极管D6的阴极连接，所述第三二极管D3的阴极和所述第五二极管D5的阴极分别与所述第二电感Lf2的第一端连接，所述第二电感Lf2的第二端与所述第二电容Co2的第一端连接，所述第二电容Co2的第二端分别与所述第四二极管D4的阳极和所述第六二极管D6的阳极连接；所述第二电容Co2的两端为所述输出整流电路22的输出端，分别与抱闸线圈的两端连接。本实施例中，所述输出整流电路22采用全桥整流电路，变压器利用率较全波整流电路高，转换效率更高。
综上所述，基于上述结构，本方案提供了一种隔离型高安全性的抱闸控制电路，与现有电路相比，取消了抱闸接触器，避免了由抱闸接触器异常导致的停梯运行故障，也避免了抱闸接触器的动作噪声，提高了电梯的体验感；并且，由开关电源提供隔离电源为抱闸线圈供电，提高了抱闸控制的安全性。
本申请还提供一种电梯，该电梯包括安全回路、制动部件以及电梯抱闸控制电路，所述电梯抱闸控制电路的结构可参照上述实施例，包括安全控制模块、电源转换电路及微处理器，所述安全控制模块的受控端接入所述安全回路中，所述安全控制模块的输入端与所述微处理器连接，所述安全控制模块的输出端与所述电源转换电路的受控端连接；所述微处理器用于输出控制信号至所述安全控制模块；所述安全控制模块用于根据所述安全回路的输出信号开通或关断所述微处理器与所述电源转换电路之间的电连接；所述电源转换电路用于根据所述控制信号控制所述电源转换电路为所述制动部件供电。理所应当地，由于本实施例的电梯系统采用了上述电梯抱闸控制电路的技术方案，因此该电梯具有上述电梯抱闸控制电路所有的有益效果。
以上仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (10)

  1. 一种电梯抱闸控制电路，其中，所述电梯抱闸控制电路包括：安全控制模块、电源转换电路及微处理器，所述安全控制模块的受控端接入电梯安全回路中，所述安全控制模块的输入端与所述微处理器连接，所述安全控制模块的输出端与所述电源转换电路的受控端连接；其中，
    所述微处理器，用于输出控制信号至所述安全控制模块；
    所述安全控制模块，用于根据所述电梯安全回路的输出信号开通或关断所述微处理器与所述电源转换电路之间的电连接；
    所述电源转换电路，用于根据所述控制信号为电梯制动部件供电。
  2. 如权利要求1所述的电梯抱闸控制电路，其中，
    所述微处理器，用于输出PWM控制信号至所述安全控制模块；
    所述安全控制模块，用于根据所述安全回路的输出电源生成安全信号，所述安全信号，用于控制所述PWM控制信号的传输通道开通或关断。
  3. 如权利要求2所述的电梯抱闸控制电路，其中，
    所述微处理器，用于输出PWM控制信号至所述安全控制模块；
    所述安全控制模块，包括第一变压器和隔离模块；
    所述第一变压器用于根据所述安全回路的输出电源生成安全电源，所述安全电源，用于控制所述隔离模块的启动或停止。
  4. 如权利要求3所述的电梯抱闸控制电路，其中，所述安全控制模块还包括整流滤波电路，所述隔离模块包括第一隔离芯片和第二隔离芯片；所述第一变压器的输入端接入所述电梯安全回路，所述第一变压器的输出端与所述整流滤波电路的输入端连接，所述整流滤波电路的输出端分别与所述第一隔离芯片的电源端和所述第二隔离芯片的电源端连接，所述第一隔离芯片的输入端与所述微处理器连接，所述第一隔离芯片的输出端与所述第二隔离芯片的输入端连接，所述第二隔离芯片的输出端与所述电源转换电路的受控端连接；
    所述整流滤波电路，用于将所述安全电源转换为供电电源，所述供电电源用于控制所述第一隔离芯片和所述第二隔离芯片启动或停止。
  5. 如权利要求1所述的电梯抱闸控制电路，其中，所述安全控制模块的受控端与所述电梯安全回路的末端连接。
  6. 如权利要求1所述的电梯抱闸控制电路，其中，所述电梯抱闸控制电路还包括电梯控制器，所述电梯安全回路包括安全电路和开关电路；所述开关电路的受控端用于与所述电梯控制器连接，所述开关电路的输入端用于接入所述安全电路，所述开关电路的输出端与所述安全控制模块的受控端连接；
    所述开关电路，用于根据所述电梯控制器发出的闭合信号导通，以传输所述安全电路的输出信号至所述安全控制模块；根据所述电梯控制器发出的关断信号断开，以停止传输所述安全电路的输出信号。
  7. 如权利要求1所述的电梯抱闸控制电路，其中，所述电梯抱闸控制电路还包括电梯控制器；所述微处理器的输入端用于与所述电梯控制器连接；
    所述微处理器，还用于根据所述电梯控制器发出的开闸信号输出控制信号，以控制所述电源转换电路为所述制动部件供电；根据所述电梯控制器发出的抱闸信号输出停止信号，以控制所述电源转换电路停止为所述制动部件供电。
  8. 如权利要求1所述的电梯抱闸控制电路，其中，所述电源转换电路包括功率变换电路、第二变压器和输出整流电路；所述功率变换电路的受控端为所述电源转换电路的受控端，所述功率变换电路的输出端与所述第二变压器的原边绕组连接，所述第二变压器的副边绕组与所述输出整流电路的输入端连接，所述输出整流电路的输出端为所述电源转换电路的输出端；
    所述功率变换电路，用于根据所述控制信号将接入的第一直流电源电压进行转换后通过所述第二变压器的原边绕组传递到所述第二变压器的副边绕组，以使所述输出整流电路将其转换为第二直流电压并输出。
  9. 如权利要求8所述的电梯抱闸控制电路，其中，所述功率变换电路为以下任意电路之一：全桥拓扑电路、半桥拓扑电路；
    所述输出整流电路为以下任意电路之一：全波整流电路、全桥整流电路。
  10. 一种电梯，其中，所述电梯包括安全回路、制动部件以及如权利要求1-9中任一项所述的电梯抱闸控制电路，所述电梯抱闸控制电路包括安全控制模块、电源转换电路及微处理器，所述安全控制模块的受控端接入所述安全回路中，所述安全控制模块的输入端与所述微处理器连接，所述安全控制模块的输出端与所述电源转换电路的受控端连接；
    所述微处理器，用于输出控制信号至所述安全控制模块；
    所述安全控制模块，用于根据所述安全回路的输出信号开通或关断所述微处理器与所述电源转换电路之间的电连接；
    所述电源转换电路，用于根据所述控制信号控制所述电源转换电路为所述制动部件供电。
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