CN1359845A - PWM-model elevator door driver with reversible soft drive - Google Patents
PWM-model elevator door driver with reversible soft drive Download PDFInfo
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- CN1359845A CN1359845A CN 02100276 CN02100276A CN1359845A CN 1359845 A CN1359845 A CN 1359845A CN 02100276 CN02100276 CN 02100276 CN 02100276 A CN02100276 A CN 02100276A CN 1359845 A CN1359845 A CN 1359845A
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Abstract
A PWM-type reversible soft driver for the gate of elevator is composed of a mechanical unit consisting of a motor, toothed belt wheel, toothed belt, big and small drive wheels, linking block and left and right cage gates; a control system with control module; two drive circuits; failure detecting protector; display; keyboard; serial communication circuit; voltage detector; current detector; speed-position detector; rectifying/energy feedback module and PWM-type converter module. It is characterized by non-contact control.
Description
Technical field
The invention belongs to the architectural stair equipment class, relate in particular to elevator door-motor equipment.
Background technology
China produces 40000 ones in elevator per year, is using 400,000 ones in elevator at present.Elevator door is after Elevator landing stops ladder, and the passenger is into and out of the passage of lift car.Elevator car door system is made up of door machine, gate, Room door and safety guard etc.Door motor is received control open and close gate signal rear drive mechanical transmission mechanism in speed regulation device, and the gate devices such as cutter, trolley of moving into one's husband's household upon marriage as the active gate open drive Room doors and are synchronized with the movement, and drives gate and makes the open and close door and move.
In recent years, the machine manufacture and the controlling level of China's elevator are greatly improved, but because a machine adopts mechanical transmission mechanism, motor connects the operation of drive gate by crank connecting link after gear and big steamboat speed change.At this moment, device drive Room doors such as door cutter, trolley are synchronized with the movement and carry out the open and close door, and its complicated in mechanical structure wearing and tearing are big, the high maintenance difficulty of noise, and quality is also unsatisfactory, and elevator faults 75% goes out at Men Chu.Secondly, the micro controller systems that adopt in the control system of door machine more, control accuracy is low, and function is less; The rectifying circuit module that adopts in the control circuit does not have energy feedback function, when the pump up voltage is too high, needs the energy consumption resistance power consumption with the protection power device, thereby causes circuit bulky, the noise height.Moreover what bipolar system H type PWM conversion module circuit was exported is that DC current can only be applicable to DC machine, can not select inexpensive common alternating current dynamo for use.Therefore, improve door machine quality, performance and mode and become an elevator industry difficult problem anxious to be tackled key problems.
Summary of the invention
The purpose of this invention is to provide the reversible soft transmission elevator door-motor of a kind of PWM, to solve an above-mentioned difficult problem.
The object of the present invention is achieved like this: the reversible soft transmission elevator door-motor of a kind of PWM; comprise by motor; belt pulley with tooth; toothed belt is arranged; the main bull wheel that drives; steamboat; synchronizing wheel; follower; contiguous block; left side gate; the door machine machinery part that right gate constitutes, and by the controller module circuit; rectification/energy feedback modular circuit; bipolar system H type PWM conversion module circuit; driving circuit (1); the fault detection protective circuit; telltale; keyboard; serial communication circuit; voltage detecting circuit; current detection circuit; driving circuit (2); the electrical control device that the velocity location testing circuit constitutes is formed.The present invention is connected described controller module circuit respectively with driving circuit (1), fault detection protective circuit, telltale, keyboard, serial communication circuit, voltage detecting circuit, current detection circuit, driving circuit (2), velocity location testing circuit.Driving circuit (1) is connected with rectification/energy feedback modular circuit; Driving circuit (2) is connected with bipolar system H type PWM conversion module circuit; The velocity location testing circuit is connected with the rotary encoder that is arranged on the motor coaxle place, and motor is connected with bipolar system H type PWM conversion module circuit; Voltage detection device is connected in parallel in the junction circuit of rectification/energy feedback modular circuit and bipolar system H type PWM conversion module circuit, the current detecting device is connected in the junction circuit of rectification/energy feedback modular circuit and bipolar system H type PWM conversion module circuit, is used for the various control of elevator door-motor.
Because the present invention has adopted above technical scheme, has following characteristics:
1, motor is done the operation of switch door through drive wheel by there being toothed belt directly to drive elevator cage door, changes the disadvantage that was in the past connected type of drive by gear by mechanical linkage firmly, have the transmission efficiency height, fault rate is low, and the operation noise is low, the action of switch door is soft, and physical construction is simple.
2, the power circuit structure by adopting different modes, can conveniently be suitable for different AC and DC motors.
3, digital signal processor DSP control realizes DC PWM, the AC frequency conversion multiple control modes; And can with upper computer serial communication and signal monitoring, improve the reliability and the property versatile and flexible of system.
4, the active inversion brake mode, the big resistance of cancellation power consumption improves speed adjusting performance, cuts down the consumption of energy and generates heat the door machine device miniaturization.
5, the power circuit power device adopts soft switch actuation techniques, reduces pipe consumption and heating, the actuating device micro-miniaturisation.
6, digital control, cancellation has contact position switch, realization speed and position closed loop.
Description of drawings
Fig. 1 is the principle schematic of a kind of elevator door-motor physical construction of the present invention:
Fig. 2 is the circuit structure principle schematic of the reversible soft transmission elevator door-motor of a kind of PWM of the present invention;
Fig. 3 is a circuit embodiments scheme drawing of the reversible soft transmission elevator door-motor of a kind of PWM of Fig. 2.
Among the figure:
1-motor 2-belt pulley with tooth 3-has toothed belt
4-master drives bull wheel 5-steamboat 6-synchronizing wheel
7-follower 8-contiguous block 9-left side gate
The right gate 11-of 10-rotary encoder 12-controller module circuit
13-rectification/energy feedback circuit 14-bipolar system H type PWM conversion module circuit 15-driving circuit (1)
16-fault detection protective circuit 17-telltale 18-keyboard
19-serial communication circuit 20-voltage detecting circuit 21-current detection circuit
22-driving circuit (2) 23-velocity location testing circuit 24-upper computer
25-current detecting device 26-voltage detection device
Embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is explained as follows.
In Fig. 1, mechanical transmission structure of the present invention and working process are described as follows:
In Fig. 2, the electrical control of door machine partly is made of controller module circuit 12, rectification/energy feedback modular circuit 13, bipolar system H type PWM conversion module circuit 14, driving circuit (1) 15, fault detection protective circuit 16, telltale 17, keyboard 18, serial communication circuit 19, voltage detecting circuit 20, current detection circuit 21, driving circuit (2) 22, velocity location testing circuit 23.Wherein, described controller module circuit 12 is connected with driving circuit (1), fault detection protective circuit 16, telltale 17, keyboard 18, serial communication circuit 19, voltage detecting circuit 20, current detection circuit 21, driving circuit (2) 22, velocity location testing circuit 23 respectively.Driving circuit (1) 15 is connected with rectification/energy feedback modular circuit 13; Driving circuit (2) 22 is connected with bipolar system H type PWM conversion module circuit 14.The coaxial place of motor 1 is provided with rotary encoder PG11, and velocity location testing circuit 23 is connected with the rotary encoder 11 that is arranged on motor 1 place, is used to measure the speed and the position signal of motor 1.Motor 1 is connected with bipolar system H type PWM conversion module circuit 14, is driven by it the open and close elevator door.Voltage detection device 26 is connected in parallel in the junction circuit of rectification/energy feedback modular circuit 13 and bipolar system H type PWM conversion module circuit 14, and current detecting device 25 is connected in the junction circuit of rectification/energy feedback modular circuit 13 and bipolar system H type PWM conversion module circuit 14.For realizing remote monitor and control to elevator door-motor, be provided with serial communication circuit 19 in the Elevator Door Control circuit, it is connected with controller module circuit 12 and upper computer 24 respectively, is used for the remote monitor and control of elevator master control system opposite house machine.
From the above mentioned, wherein:
1, rectification/energy feedback circuit 13 is used for exchanging end and inserts three-phase alternating-current supply through a, b, c, and dc terminal is by resistance R 1, through filtering and energy absorbing capacitor C d output dc voltage, through A, B two termination bipolar system H type PWM conversion module circuit 14.Power device VT11～VT16 in the inverter bridge is by driving circuit (1) 15 its break-make of control.
2, bipolar system H type PWM conversion module circuit 14, through current detecting device (HL1) 25 meet A, the B two ends link to each other with rectification/energy feedback circuit 13, output connects motor (M) 1.Owing to adopt soft switch actuation techniques, reduced the HF switch loss in the circuit, power device VT21～VT24 is by driving circuit (2) 23 its break-makes of control.
3, controller module circuit 12 is that core constitutes the door machine controller with dsp chip TMS320F240, receives various feedbacks, detection signal and operating instruction, and the operation of control motor has realized digital control.
4, driving circuit (1) 15 is used to receive the signal of the D0 of controller module circuit 12～D7 end, drives the VT11～VT16 in rectification/energy feedback circuit 13.
5, fault detection protective circuit 16 is used for external circuit and detects breakdown signal through PDPINT mouth input controller modular circuit 12.
6, telltale 17 is used to receive the signal of the D8 of controller module circuit 12～D15 end, shows running state and breakdown signal.
7, keyboard 18, the ADC3 of via controller modular circuit 12, ADC4 mouth, input data and operational order.
8, serial communication circuit 19, the SCI mouth of via controller modular circuit 12 is finished the signal communication with upper computer 24.
9, voltage detecting circuit 20 is connected on A, B two ends collection d. c. voltage signal through voltage detection device (HL2) 26 and R2, is input to the ADCIN2 mouth of controller module circuit 12.
10, current detection circuit 21 is serially connected between B end and the bipolar system H type PWM conversion module circuit 14 through current detecting device (HL1) 25, gathers the DC loop current signal, is input to the ADCIN1 mouth of controller module circuit 12.
11, driving circuit (2) circuit is used to receive the signal of the PWM mouth of controller module circuit 12, drives the VT21～VT24 in the bipolar system H type PWM conversion module circuit 14.
12, velocity location testing circuit 23, the rotary encoder 11 (PG) through installing with motor coaxle measures speed and position signal, through QEP1, QEP2 mouth input controller modular circuit 12, formation speed, position feedback.
13, upper computer 24, it is connected with controller module circuit 12 by serial communication circuit 19, is used for the monitoring of elevator master control system to elevator door-motor.
In Fig. 3, control circuit schematic diagram of the present invention is that core constitutes the door machine controller with the DSP of controller module circuit 12.When motor 1 braking or deceleration, voltage detection device (HL2) 26 is monitored dc voltage numerical value at any time.When voltage is increased to setting value, the ADCIN2 mouth that voltage detection device (HL2) 26 delivers to signal the TMS320F240 of controller module circuit 12 produces interruption, ADCIN2 mouth by system device modular circuit 12 reads in voltage signal U, calculates inverterangle and 8253 relevant timer delay time T
aBe unlikely to cause that the feedback electric current is excessive during for the assurance inversion, open and interrupt IR2, detect synchronizing pulse interrupt signal XINT1.Sync detection circuit is on Fig. 3 top, and it is made up of power line voltage zero passage detection and edge detection two parts, and the circuit zero passage detection becomes sinusoidal voltage into 180 ° of square waves by LM 339 comparators, delivers to 8255 PB mouths as the power supply strobe pulse.The edge detects to be made up of 74LS 86 and 74LS04 etc., the phase pulse is recognized in acquisition, produce the sync break pulse during in the power line voltage zero passage through logical combination again, deliver to the XINT1 external interrupt mouth of controller module circuit 12 (PMS320F240), the DSP response synchronizing pulse interrupt signal XINT1 of controller module circuit 12, start the timer 8253 time-delay, at delay time T
aDuring end, 8253 OUT
0Mouth output high level, positive rise gating 74LS273 exports corresponding pulse control signal and drives EXB841 unlatching inverse parallel inverter bridge VT
11-VT
16, up to T1 timer End of Interrupt; In the next T1 timer time-delay process, detect synchronizing pulse interrupt signal XINT1 once more,, realize the timing of inverterangle different pump up voltages, and and synchronized.
Power device IGBT in the bipolar system H type PWM conversion module circuit 14 adopts soft switch actuation techniques, make power device conducting when zero voltage, zero-current switching reduces pipe consumption and heating, improve the switching frequency and the service efficiency of power device, make the actuating device micro-miniaturisation.
The present invention adopts digital control, and realization speed and position closed loop speed control and motor coaxle are installed the QEP mouth of pulse coder feedback position speed signal to controller module circuit 12 (TMS320F240), constitute speed ring.Current detecting device (HL1) 25 detects current value, feeds back to ADCIN1, constitutes electric current loop.Utilize speed and current feedback signal, calculate to regulate rotating speed of motor according to control algorithm, and then during control open and close door speed, detect running velocity and gate position by measuring pulse count, replace position commonly used, deceleration, travel switch such as spacing, realize contact pointless control.
Utilize the PDPIN1 external interrupt mouth bonded assembly fault detection protective circuit 16 of controller module circuit 12 (TMS320F240) to constitute the control circuit that power device is protected; guard signal is isolated through going into the PDPIN1 mouth through photoelectricity; when the PDPIN1 pin is low level; the DSP internal counter of controller module circuit 12 stops counting immediately; the PWM delivery port is high-impedance state; produce interrupt signal simultaneously, and deliver to upper computer 24 by serial communication circuit 19.Controller module circuit 12 (TMS320F240) receives keyboard 18 signals by I/O mouths such as ADC3, ADC4 in addition, finishes control method and selects and import information such as gate range ability.Telltale 17 its circuit meet two decoder driver MC14495 by D8～D12 and link to each other with the seven segment code telltale, in order to show the information of motor 1 rotating speed and other state.
In above-mentioned explanation and diagram, the present invention also has following characteristics:
1, the power circuit modular construction.Rectification/energy feedback modular circuit 13 constitutes rectification/energy feedback circuit; Bipolar system H type PWM conversion module circuit 14 constitutes bipolar system H type PWM translation circuit or frequency variant speed regulating circuit.Utilize the diode VD11～VD16 in rectification/energy feedback modular circuit 13 to constitute the uncontrollable rectifier bridge of three-phase,, give the bipolar system H type PWM translation circuit of forming by VT21～VT24 power supply through filtering and energy absorbing capacitor C d output dc voltage.When motor 1 brake snub, when the voltage on the dc bus was increased to setting value, voltage detection device (HL2) 26 delivered to a machine controller with signal, opened the power device VT11～VT16 in rectification/energy feedback modular circuit 13, form regenerative braking, with the electric energy feedback grid.Can pass through to change the convenient suitable different motors of circuit, AC/DC both can be used for can be used for old Retrofit of Elevator again with newly elevator is supporting.
2, DSP control by calling algorithms of different, can realize DC PWM, the AC frequency conversion multiple control modes in the controller module circuit 12; Adopt serial ports to interrupt to make upper computer 24 and TMS320F240 to carry out serial communication, accept the command signal of upper computer 24 and status signal is returned upper computer 24.During motor 1 brake snub, the pump up voltage that voltage detection device (HL2) 26 detects on the dc bus when the pump up voltage rises to setting value, is delivered to master controller 12 with signal, open the power device VT11～VT16 in rectification/energy feedback modular circuit 13, form regenerative braking, and, realize the active inversion brake mode the electric energy feedback grid, the big resistance of cancellation power consumption, improve speed adjusting performance, cut down the consumption of energy and generate heat, make the door machine device miniaturization.
3, the power device of the bipolar system H type PWM conversion module circuit 14 in the power circuit adopts soft switch actuation techniques, makes the conducting of power device zero voltage, and zero-current switching reduces pipe consumption and heating, improves the switching frequency of power device, makes the actuating device micro-miniaturisation.
4, cancel all contact position switches, current detecting device (HL1) 25 detects current value, feeds back to the ADCIN1 of controller module circuit 12, constitutes electric current loop; Deliver to QEP mouth, realization speed and the control of position complete-digital closed-loop of the TMS320F240 of controller module circuit 12 by pulse coder 11 (PG) finding speed and position signal.
Claims (2)
1. reversible soft transmission elevator door-motor of PWM, comprise by motor, belt pulley with tooth, toothed belt is arranged, the main bull wheel that drives, steamboat, synchronizing wheel, follower, contiguous block, left side gate, the door machine machinery that right gate constitutes partly, and by the controller module circuit, rectification/energy feedback modular circuit, bipolar system H type PWM conversion module circuit, driving circuit (1), the fault detection protective circuit, telltale, keyboard, serial communication circuit, voltage detecting circuit, current detection circuit, driving circuit (2), the electrical control device that the velocity location testing circuit constitutes is formed, it is characterized in that, described controller module circuit respectively with driving circuit (1), the fault detection protective circuit, telltale, keyboard, serial communication circuit, voltage detecting circuit, current detection circuit, driving circuit (2), the velocity location testing circuit connects; Driving circuit (1) is connected with rectification/energy feedback modular circuit, and driving circuit (2) is connected with bipolar system H type PWM conversion module circuit; The velocity location testing circuit is connected with the rotary encoder that is arranged on the motor place, and motor is connected with bipolar system H type PWM conversion module circuit; Voltage detection device is connected in parallel in the junction circuit of rectification/energy feedback modular circuit and bipolar system H type PWM conversion module circuit, the current detecting device is connected in the junction circuit of rectification/energy feedback modular circuit and bipolar system H type PWM conversion module circuit, is used for the various control of elevator door-motor.
2. the reversible soft transmission elevator door-motor of a kind of PWM according to claim 1, it is characterized in that, be provided with serial communication circuit in the electric control circuit of elevator door-motor, it is connected with controller module circuit and upper computer respectively, is used for the remote monitor and control of elevator master control system opposite house machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021002762A CN1159204C (en) | 2002-01-15 | 2002-01-15 | PWM-model elevator door driver with reversible soft drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021002762A CN1159204C (en) | 2002-01-15 | 2002-01-15 | PWM-model elevator door driver with reversible soft drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1359845A true CN1359845A (en) | 2002-07-24 |
| CN1159204C CN1159204C (en) | 2004-07-28 |
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ID=4739279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021002762A Expired - Fee Related CN1159204C (en) | 2002-01-15 | 2002-01-15 | PWM-model elevator door driver with reversible soft drive |
Country Status (1)
| Country | Link |
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| CN (1) | CN1159204C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102666350A (en) * | 2009-10-29 | 2012-09-12 | 奥的斯电梯公司 | Elevator door controller system |
| CN104467549A (en) * | 2014-11-28 | 2015-03-25 | 常州大学 | Symmetric drive method for DC motor in elevator door motor system |
| CN108821077A (en) * | 2018-07-10 | 2018-11-16 | 奥特朗博电梯有限公司 | A kind of elevator digital control type door machine mechanism |
-
2002
- 2002-01-15 CN CNB021002762A patent/CN1159204C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102666350A (en) * | 2009-10-29 | 2012-09-12 | 奥的斯电梯公司 | Elevator door controller system |
| US9150385B2 (en) | 2009-10-29 | 2015-10-06 | Otis Elevator Company | System for providing DC power to elevator car |
| CN104467549A (en) * | 2014-11-28 | 2015-03-25 | 常州大学 | Symmetric drive method for DC motor in elevator door motor system |
| CN108821077A (en) * | 2018-07-10 | 2018-11-16 | 奥特朗博电梯有限公司 | A kind of elevator digital control type door machine mechanism |
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| Publication number | Publication date |
|---|---|
| CN1159204C (en) | 2004-07-28 |
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