CN1109648C - Unit for controlling elevator door - Google Patents

Unit for controlling elevator door Download PDF

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Publication number
CN1109648C
CN1109648C CN94118605A CN94118605A CN1109648C CN 1109648 C CN1109648 C CN 1109648C CN 94118605 A CN94118605 A CN 94118605A CN 94118605 A CN94118605 A CN 94118605A CN 1109648 C CN1109648 C CN 1109648C
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China
Prior art keywords
door
signal
mentioned
speed
driver element
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CN1110956A (en
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下方稔久
小寺利幸
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/22—Operation of door or gate contacts

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

To avoid free motion when the door control function is stopped by furnishing a control means to control the drive of a DC motor in conformity to an opening/closing signal for an elevator door, and equipping this control means with a braking logic circuit which emits a brake signal regardless of failure of the door opening/closing signal in conformity to the brake signal generated during the door opening/closing motion. A control device for an elevator door comprises a driving element 2 turned on when the door is to be closed, a driving element 3 operating when the door is to be opened or when brake is applied to the door closing motion, a driving element 4 to operate when the door is to be closed or when brake is applied to the door opening motion, and a driving element 5 turned on when the door is to be closed, and thereby the current feeding direction to a DC motor 10 is inverted through these driving elements 2-5 constituting a bridge structure. A logic circuit 13 is furnished to emit a brake signal, when a brake signal is generated from a brake signal generating means 12g during the door opening or closing motion, and is equipped with inverter elements 13i and 13j to emit the inverted signals of a door open signal and a door close signal, respectively.

Description

The control setup of elevator door
The present invention relates to control the elevator door opening-closing control setup of the switching of elevator door, can not form freely when relating in particular to a kind of controllable function that stops door and move, the while by the self-closing device control gate can full cut-off control device for elevator door.
Fig. 9 is the real block scheme of opening the control setup of the existing elevator door that flat 1-41748 communique disclosed.
In Fig. 9,1 is by rectifier cell 1a-1d, the continuous-current plant that source of AC 1e and smoothing capacity 1f constitute, 2 is that door closes the driver element of connecting when power running moves, 3 start the driver element that moves when power running action and door close braking maneuver for door, 4 close the driver element that moves when power running action and door are opened braking maneuver for door, 5 are a driver element that the power of starting turns round and connects when moving, 6-9 is the rectifier cell of switching on opposite with the conducting direction of driver element 2-5,10 expression autonomous DC electrical motors (hereinafter to be referred as DC motor), by constituting the above-mentioned driver element 2 to 5 of full-bridge, constitute the reverse driving means of reversible control of the electric current energising direction of above-mentioned DC motor 10.
Again, 11 is elevator control panel, and 11a and 11b open signal for the door of sending from this elevator control panel 11 and door closes signal.12 expression speed control units, this speed control unit 12 has: the door position detector 12a of the position of detecting gate, according to this position detection signal with open signal 11a from the door of above-mentioned elevator control panel 11 and door closes signal 11b, the velocity curve figure generation circuit 12b of output speed command value, detect the speed detector 12c of the speed of above-mentioned DC machine 10, ask for the differential amplifier 12d of the difference of this speed detection signal and speed value, circuit 12e takes place in the PWM that changes the PWM instruction of PWM amplitude according to this difference signal output, above-mentioned difference signal is the power running signal generation means 12f that timing produces the power running signal, the speed-slackening signal generation means 12g of output speed-slackening signal when above-mentioned difference signal is negative.
Again, 13 expressions have the decision circuit of power running decision circuit and brake logic circuit.This decision circuit 13 has: by out gate open signal 11a and door close signal 11b reverse signal inverting element 13g output and obtain door from the logic product of the power running signal of above-mentioned power running signal generation means 12f and start " with door " element 13a of power CRANK PULSES, close by out gate signal 11b and Men Kai signal 11a reverse signal inverting element 13h output and from the logic product of the power running signal of above-mentioned power running signal generation means 12f, obtain " with door " element 13b that door closes the power running signal, according to door close signal 11b and obtain from the speed-slackening signal of above-mentioned speed-slackening signal generation means 12g that door closes speed-slackening signal with gating element 13c, according to door open signal 11a with obtain from the speed-slackening signal of above-mentioned speed-slackening signal generation means 12g that door opens speed-slackening signal with gating element 13d, door is started the power CRANK PULSES close that speed-slackening signal makes up or gating element 13e, door is closed power running letter AND gate open that speed-slackening signal makes up or gating element 13f with door.By constituting the power running decision circuit with gating element 13a and 13b and inverting element 13g and 13h, and will with gating element 13c and 13d and or gating element 13e and 13f constitute the brake logic circuit.
Have, the driving command generation circuit of driver element 2 to 5 is exported to driving command according to the output of above-mentioned decision circuit 13 in 14 expressions again.This driving command generation circuit 14 has: use with the output of gating element 13a and drive the required amplifier 14a of driver element 5, with driving the required amplifier 14b of driver element 2 with the output of gating element 13b, according to or the output of gating element 13e and PWM output that circuit 12e takes place drive the required amplifier 14c of driver element 3, by or the output of gating element 13f and circuit 12e takes place PWM output drive the required amplifier 14d of driver element 4.Input is opened signal and the decision circuit 13 and the driving command generation means 14 formation control devices of closing signal from the door of speed control unit 12 and elevator control panel 11, and this control device is according to each driver element 2 to 5 of the switching signal control driving means of elevator door.
Action to above-mentioned formation describes below.
At first, door starts when doing, and door is opened the velocity curve figure generation circuit 12b of signal 11a from elevator control panel 11 input logic circuits 13 and speed control unit 12.Open signal 11a according to this door, velocity curve figure generation circuit 12b produces predetermined speed value, when the speed detected value that obtains as this speed value specific rate detector 12c is big, then power running signal generation means 12f moves according to the output of differential amplifier 12d, from power CRANK PULSES generation means 12f outputting power CRANK PULSES.At this moment, decision circuit 13 with gating element 13a according to door open signal 11a, obtain door close signal 11b counter-rotating output phase inverter 13g output, and move from 3 logic products of the power running signal of power running signal generation means 12f.The amplifier 14a of driving command generation means 14 moves according to the output of this and gating element 13a, makes driver element 5 actions, simultaneously, or gating element 13e and amplifier 14c according to the signalizing activity of gating element 13a, make driver element 3 actions.
Move by these, holding from (+) of supply unit 1 provides power supply, and electric current is held through (-) that driver element 5, DC motor 10, driver element 3 flow into supply units 1, and DC motor 10 is rotated.
At this moment, door begins to open, connect according to the output resume controlling and driving element 5 of amplifier 14a on the one hand, on the other hand, shown in Figure 10 (a) to (c), the output that circuit 12e takes place according to PWM makes driver element 3 do switch motion by amplifier 14c, makes door change down acceleration slowly corresponding to the difference of speed value and speed detected value by pulse-width controlled.After this, if the speed of DC motor 10 reaches speed value, difference is diminished, then the turnon time of switch shortens, and the electric current of the DC motor of flowing through 10 descends, and makes its rotation with the speed of determining.Then, when arriving deceleration point, door then enters braking maneuver.
And open glancing impact at door, promptly, the speed detected value that draws from the speed value specific rate detector 12c of velocity curve figure generation circuit 12b hour, output according to differential amplifier 12d, cut-out is from the power running signal of power running signal generation means 12f, speed-slackening signal generation means 12g action, and produce speed-slackening signal.In the time of above-mentioned power running signal cut driver element 5 is also cut off, simultaneously open signal 11a and make and door 13d or door 13f, amplifier 14d and driver element 4 actions, brake from the speed-slackening signal of above-mentioned speed-slackening signal generation means 12g by above-mentioned door.
Like this, the generated energy that is produced by the rotation of DC motor 10 flow to driver element 4, rectifier cell 7 and DC motor 10 as electric current, forms the braking maneuver of DC motor 10, thereby control gate slows down.
Promptly, from the velocity curve figure generation circuit 12b of speed control unit 12 output shown in solid line Figure 10 (a) during speed value, as everyone knows, speed detector 12c by DC motor 10 detects the speed detection signal shown in Figure 10 (a) dotted line, its result, shown in Figure 10 (b), obtain the difference of above-mentioned speed detection signal and speed value by differential amplifier 12d, shown in Figure 10 (c), circuit 12e takes place corresponding to this difference signal in PWM, output makes the PWM instruction of PWM change width, at this moment, when the difference signal from differential amplifier 12d be on the occasion of the time, then from power CRANK PULSES generation means 12f outputting power CRANK PULSES, and when from the difference signal of differential amplifier 12d when negative, then from speed-slackening signal generation means 12g output speed-slackening signal.
Here, power running signal generation means 12f, door is opened and closed signal, compares corresponding to the speed command signal of the speed command generation circuit 12b of the position of door and the speed signal that is obtained by the speed detector 12c that is installed on the DC motor 10, by the difference amplifier 12d that tries to achieve difference, when speed command signal is big, make power running signal generation means 12f action, simultaneously, thereby circuit 12e takes place, change change switching time acceleration/accel with this difference value control PWM.When otherwise the speed signal that obtains as speed detector 12c is big, cut off power running signal, output speed-slackening signal with speed-slackening signal generation means.Identical with power running action, change by difference and to change deceleration/decel switching time.
Then, door closes when action, closes among the velocity curve figure generation circuit 12b and decision circuit 13 that signal 11b is input to speed control unit 12 from the door of elevator control panel 11.Close signal 11b according to this door, velocity curve figure generation circuit 12b produces the predetermined speed command value, when the speed detected value that this speed value specific rate detector 12c records is big, power running signal generation means 12f is according to the output action of differential amplifier 12d, from power CRANK PULSES generation means 12f outputting power CRANK PULSES.At this moment, decision circuit 13 with door 13b according to door close signal 11b, obtain door open signal 11a counter-rotating output reverser 13h output, and from the power running signal three's of above-mentioned power running signal generation means 12f logic product action, the amplifier 14b of driving command generation means 14 is according to the output action of this and gating element 13b, make driver element 2 actions, simultaneously, or gating element 13f and amplifier 14d make driver element 4 actions according to above-mentioned and signalizing activity gating element 13b.
Like this, power supply provides power supply from (+) side of supply unit 1, and electric current flows into (-) sides of supply units 1 through driver element 2, DC motor 10, driver element 4, DC motor 10 with the door evolution in the opposite direction on rotation.
At this moment, door begins to close, connect according to the output resume controlling and driving element 2 of amplifier 14b on the one hand, on the other hand, as Figure 10 (a) to shown in 10 (c), the output that circuit 12e takes place according to PWM makes driver element 4 do switch motion by amplifier 14d, according to speed value and speed detected value poor, by pulse-width controlled driver element 4 is slowly quickened.After this, if the speed of DC motor 10 reaches speed value, difference diminishes, and then the turnon time of switch shortens, and the electric current of the DC motor of flowing through 10 descends, and makes its rotation with certain speed.Then, when arriving deceleration point, door then enters braking maneuver.
Yet, door closes glancing impact, promptly, from the speed detected value of the speed value specific rate detector 12c of velocity curve figure generation circuit 12b hour, cut off the power running signal speed-slackening signal generation means 12g action of power running signal generation means 12f and produce speed-slackening signal according to the output of differential amplifier 12d.Also cut off driver element 2 in the time of the power running signal cut, simultaneously, brake according to the speed-slackening signal action that door closes signal 11b and speed-slackening signal generation means 12g with gating element 13c or gating element 13e, amplifier 14c and driver element 3.
Like this, the generated energy that is produced by DC motor 10 rotation is as electric current flow through driver element 3, rectifier cell 8 and DC motor 10, and DC motor 10 produces braking maneuvers and makes a deceleration.
The control setup of the elevator door of prior art, open braking owing to open the long-pending formation door of signal and speed-slackening signal with door, so because bad or the noise or the misoperation etc. of elevator control panel 11 inner members, in case interrupt gate was opened signal 11a when door was opened, then can not carry out door and open braking, freely move and form elevator door.Again, close braking too for door, because it is to close the long-pending of signal and speed-slackening signal by door to constitute, so when closing, can not carry out door in case interrupt gate is closed signal and close braking, elevator door becomes freely and moves.
Again, elevator door be in the open procedure or the door closed procedure in the time supply unit situation that takes place to have a power failure under, the DC motor 10 of driving gate can not form control, and the braking of door is inoperative, uses elevator dangerous.Again, elevator door is in Men Kai or door closed procedure, and door opens and closes a signal and connects simultaneously, or when cutting off simultaneously, because driver element 2 to 5 ends, so the DC motor 10 of driving gate can not constitute control, the braking of door is inoperative, uses elevator dangerous.
And, the elevator door of this straight line door mechanism does not have the standard-sized sheet confining force, during with this elevator door, in case open signal or door closes signal at cage internal cutting off door, or cut off the electricity supply, then because the effect of the self-closing power of lift port door and Close All, in case the elevator door Close All, do not open from elevator door external application key, elevator can not reset.In order to address this problem, for example the spy opens in the clear 63-235284 communique and has disclosed a kind of brake equipment, and this device can not exclusively close door by self-closing device when actuating doors drives halt switch.
Promptly, this brake equipment is not having a switching instruction and losing under the situation of a function, by this situation is detected, the output of the speed command generation circuit of door is set at zero, produce braking current, and only control, thereby make the braking current that flows through corresponding to self-closing speed according to the input of door speed detector, limited self-closing power, again, be provided with load, this load make door can not be fully closure and stopping.
, this brake equipment must have following structure: the structure that limits the special construction of self-closing power and door is stopped under full-shut position not.
The present invention forms for solving above-mentioned prior art problem, its purpose is to provide a kind of control setup of elevator door, it can stop the Shi Buhui generation in the controllable function of door and freely move, do not need simultaneously special structure, and be applicable to the elevator door that can not obtain the standard-sized sheet confining force that straight line door mechanism is such, can not brake under the condition of full cut-off at door by self-closing device.
The control setup of elevator door of the present invention has: the DC motor that drives elevator door; Have the driver element of full bridge structure and above-mentioned DC motor is carried out the driving means of reversible Spin Control; Each driver element of above-mentioned driving means is carried out the control device of drive controlling according to the switching signal of above-mentioned elevator door.It is characterized in that, above-mentioned control device also has: the speed-slackening signal that produces when closing according to Men Kai or door, and no matter door opens and closes the brake logic circuit of the unusual pressure output speed-slackening signal of signal, and above-mentioned brake logic circuit has the 1st phase inverter of the reverse signal that out gate leaves signal, obtain the logic product of the output of the 1st phase inverter and speed-slackening signal and out gate close speed-slackening signal the 1st with door, out gate closes the 2nd phase inverter of the reverse signal of signal, obtain the logic product of the output of the 2nd phase inverter and speed-slackening signal and out gate open speed-slackening signal the 2nd with door, close speed-slackening signal or above-mentioned door according to above-mentioned door and open that speed-slackening signal is controlled above-mentioned driver element so that the braking of above-mentioned DC motor.
The mode that the force disconnect door opened and closed signal and exports speed-slackening signal when again, the control setup of elevator door of the present invention also can close signal and connects simultaneously according to the Men Kaixin AND gate constitutes the brake logic circuit.
Force the mode of output speed-slackening signal to constitute the brake logic circuit when again, the control setup of elevator door of the present invention also can close signal and cuts off simultaneously according to the Men Kaixin AND gate.
Again, the control setup of elevator door of the present invention has: the autonomous DC electrical motor that drives elevator door; To become dc point and with the supply unit of this autonomous DC electrical motor of direct-current power supply from the interchange point transformation that exchanges power supply; The driving means of the above-mentioned autonomous DC electrical motor rotation of the driver element of the full bridge structure that has rectifier cell and be connected in parallel and reversible control; Control device according to each driver element of the above-mentioned driving means of switching signal drive controlling of elevator door is characterized in that it also has: have the relay in parallel with above-mentioned source of AC and be used to detect the detection means of the interruption of above-mentioned supply unit; Has the glancing impact switch means that the action according to the relay of this detection means opens and closes the contact of change action and above-mentioned autonomous DC electrical motor is braked.
Again, the control setup of elevator door of the present invention, its glancing impact switch means has the storage battery of supplying with direct supply, this switch means also can constitute like this, promptly the driver element of glancing impact action is cut off above-mentioned control device, above-mentioned storage battery is connected to makes on the control electrode terminal of this driver element that this driver element is connected, action simultaneously according to the detection signal of above-mentioned detection means.
Again, the control setup of elevator door of the present invention, also can constitute like this as the glancing impact switch means, being it cuts off above-mentioned control device according to the detection signal of above-mentioned detection means with the driver element of glancing impact action, simultaneously, the control electrode terminal of the generation power of above-mentioned autonomous DC electrical motor being supplied with this driver element makes that this driver element is connected, action.
Again, the control setup of elevator door of the present invention also can constitute according to the detection signal of the above-mentioned detection means short circuited mode in armature two ends with above-mentioned autonomous DC electrical motor as the glancing impact switch means.
Again, the control setup of elevator door of the present invention also can constitute short circuit between the power lead two ends according to the detection signal of above-mentioned detection means as the glancing impact switch means.
Again, the control setup of elevator door of the present invention also can have the operating switch that the detection signal that obtains according to above-mentioned detection means will be opened by short circuited short circuit current as the glancing impact switch means.
The control setup of elevator door of the present invention has: the DC motor that drives elevator door; Have the driver element of full bridge structure and the driving means of the above-mentioned DC motor rotation of reversible control; Control device according to each driver element of the above-mentioned driving means of switching signal drive controlling of elevator door, in above-mentioned control device, owing to have the speed-slackening signal that produces according in Men Kai or the door closed procedure, and no matter door opens and closes the unusual of signal, force the brake logic circuit of output speed-slackening signal, so can carry out door no matter door opens and closes signal opens braking maneuver and closes braking maneuver, like this, each opens and closes also can brake immediately when signal wire (SW) disconnects the DC motor of driving gate is stopped, can improve safety in utilization, and can prevent that the self-closing power of door from close door fully.
Again, the control setup of elevator door of the present invention, close speed-slackening signal according to the reverse signal of door being opened signal and the logic product of speed-slackening signal as door, simultaneously door is closed the reverse signal of signal and the logic product of speed-slackening signal and open speed-slackening signal as door, the mode of output constitutes above-mentioned brake logic circuit, so open in the braking procedure at door, open signal even cut off door, also can obtain door and open speed-slackening signal by the logic product that door closes the reverse signal of signal and speed-slackening signal, carry out opening the logical of signal with door, disconnected irrelevant door is opened braking maneuver, simultaneously, close in the braking procedure at door, even door closes signal cut, open the logic product of reverse signal and the speed-slackening signal of signal by door, also can obtain door and close speed-slackening signal and carry out closing leading to of instruction with door, disconnected irrelevant door closes braking maneuver, like this, door opens and closes signal when disconnecting respectively, also can brake immediately the DC motor of driving gate is stopped, and can improve the self-closing power that safety in utilization can prevent door again door is closed fully.
Again, the control setup of elevator door of the present invention is when closing signal at the Men Kaixin AND gate and connect simultaneously, the force disconnect door opens and closes signal, and the mode of output speed-slackening signal constitutes above-mentioned brake logic circuit, so in the door on-off action process, even a connection door switching signal also can be braked immediately the DC motor of driving gate is stopped simultaneously, can prevent that again the self-closing power of door from close door fully.
Again, the control setup of elevator door of the present invention, when closing signal and cut off simultaneously according to Men Kaixin AND gate in the door on-off action, force the mode of output speed-slackening signal to constitute above-mentioned brake logic circuit, even the DC motor of driving gate is stopped so door opens and closes also can brake immediately when signal cuts off simultaneously, can improve safety in utilization, can prevent that again self-closing power from close door fully.
Again, the control setup of elevator door of the present invention has: the autonomous DC electrical motor that drives elevator door; Supply unit with this autonomous DC electrical motor of direct-current power supply; Driver element with full bridge structure of reverse parallel connection bonded assembly rectifier cell, and driving means that can the above-mentioned autonomous DC electrical motor of reverse control; According to the control device of each driver element of the above-mentioned driving means of switching signal drive controlling of elevator door, because it also has: the detection means that detects above-mentioned supply unit open circuit; The glancing impact switch means that the detection signal that obtains according to this detection means moves above-mentioned autonomous DC motor braking, so in the door on-off action, even the supply unit open circuit also can be braked immediately to the autonomous DC electrical motor of driving gate door is stopped, can improve safety in utilization, can prevent that again the self-closing power of door from close door fully.
Again, the control setup of elevator door of the present invention, its above-mentioned glancing impact switch means has the storage battery of supplying with direct supply, owing to can the driver element that glancing impact moves be cut off above-mentioned control device according to the detection signal of above-mentioned detection means, simultaneously above-mentioned storage battery is connected on the control electrode terminal of this driver element and makes this driver element connection work, so in door on-off action process, even the supply unit disconnection also can make the autonomous DC electrical motor of driving gate brake immediately door is stopped, improved safety in utilization, can prevent again the door self-closing power and close fully.
Again, the control setup of elevator door of the present invention, its above-mentioned glancing impact switch means, owing to can the driver element of working be cut off above-mentioned control device according to the detection signal glancing impact of above-mentioned detection means, the control electrode end of simultaneously generation power of above-mentioned autonomous DC electrical motor being supplied with this driver element makes this driver element connect, work, so in the door on-off action process, even supply unit disconnects also braking the autonomous DC electrical motor of driving gate immediately door is stopped, can improve safety in utilization, can prevent that again the self-closing power of door from close door fully.
Again, the control setup of elevator door of the present invention, above-mentioned glancing impact switch means, owing to can make armature two terminal shortcircuits of above-mentioned autonomous DC electrical motor according to the detection signal of above-mentioned detection means, so in the door on-off action process, even power cut-off also can be braked the electrical motor of driving gate immediately door is stopped, improving safety in utilization, can prevent that again the self-closing power of door from closing fully.
Again, the control setup of elevator door of the present invention, as above-mentioned glancing impact switch means, owing to can make short circuit between the power lead two ends according to the detection signal of above-mentioned detection means, so even the power cut-off device also can be braked the autonomous DC electrical motor of driving gate door is stopped in the door on-off action process, thereby can improve safety in utilization, can prevent that again the self-closing power of door from close it fully.
Again, the control setup of elevator door of the present invention, its above-mentioned glancing impact switch means, owing to have the operating switch of opening by the short circuit current of the detection signal short circuit of above-mentioned detection means, so when the maintenance elevator, wish to make under the situation of an action with hand, can not brake, so that can keep in repair easily.
Below diagram is carried out simple declaration.
Fig. 1 is the block scheme of control setup of the elevator door of the embodiment of the invention 1;
Fig. 2 is the block scheme of control setup of the elevator door of the embodiment of the invention 2;
Fig. 3 is the block scheme of control setup of the elevator door of the embodiment of the invention 3;
Fig. 4 is the block scheme of control setup of the elevator door of the embodiment of the invention 4;
Fig. 5 is the block scheme of control setup of the elevator door of the embodiment of the invention 5;
Fig. 6 is the block scheme of control setup of the elevator door of the embodiment of the invention 6;
Fig. 7 is the block scheme of control setup of the elevator door of the embodiment of the invention 7;
Fig. 8 is the block scheme of control setup of the elevator door of the embodiment of the invention 8;
Fig. 9 is the frame assumption diagram of the control setup of existing routine elevator door;
Figure 10 is the mode chart of instruction diagram 9 actions.
Embodiment 1
According to illustrated embodiment the present invention is illustrated below.
Fig. 1 is the frame assumption diagram of the control setup of the elevator door of expression embodiment 1.
Among Fig. 1, represent same section with prior art control setup same-sign shown in Figure 9,1 is the continuous-current plant of being made up of rectifier cell 1a-1d and source of AC 1e and smooth condenser 1f, the driver element of connecting when 2 expression doors close the power running action, 3 expression doors start the driver element that moves when power running action and door close braking maneuver, 4 close the driver element that moves when power running action and door are opened braking maneuver for door, 5 are a driver element that the power of starting turns round and connects when moving, 6-9 express possibility with the opposite sense of the conducting direction of driver element 2-5 on the rectifier cell of conducting, 10 are autonomous DC electrical motor (being designated hereinafter simply as DC motor).The above-mentioned driver element 2 to 5 of full bridge structure constitutes the driving means that the electric current energising direction counter-rotating that makes above-mentioned DC motor 10 can reverse control.
Again, 11 is elevator control panel, and the door that 11a and 11b send for this elevator control panel 11 opens signal and door closes signal.12 is speed control unit, and it has: the door position detector 12a of detecting gate position; Open signal 11a and door closes the speed curve diagram generation circuit 12b of signal 11b detection speed command value according to this position detection signal with from the door of above-mentioned elevator control panel 11; Detect the speed detector 12c of the speed of above-mentioned DC motor 10; Ask for the differential amplifier 12d of the difference of this speed detection signal and speed value; Circuit 12e takes place in the PWM that changes the PWM instruction of PWM width corresponding to this difference signal output; Difference signal be on the occasion of the time produce the power running signal generation means 12f of power running signal; The speed-slackening signal generation means 12g of difference signal time output speed-slackening signal for negative value.
Again, 13 expressions have the decision circuit of power running decision circuit and brake logic circuit.This decision circuit 13 by; Out gate closes the inverter element 13g of the reverse signal of signal 11b; By door open the output of signal 11a and inverter element 13g and obtain from the logic product of the power running signal of above-mentioned power running signal generation means 12f that door starts the power CRANK PULSES with gating element 13a; The inverter element 13h of the reverse signal of signal 11a left by out gate; By door close the output of signal 11b and above-mentioned phase inverter 13h and obtain from the logic product of the power running signal of above-mentioned power running signal generation means 12f that door closes the power run signal with gating element 13b, constitute the power running decision circuit.On the other hand, this decision circuit 13 by: the inverter element 13i of the reverse signal of signal 11a left by out gate; Out gate closes the inverter element 13j of the reverse signal of signal 11b; The output that obtains inverter element 13i with from the logic product of the speed-slackening signal of speed-slackening signal generation means 12g and out gate closes speed-slackening signal and door 13c; The output that obtains inverter element 13j with from the logic product of the speed-slackening signal of speed-slackening signal generation means 12g and speed-slackening signal left by out gate and gating element 13d; With starting that power CRANK PULSES and door close speed-slackening signal or gating element 13e with the logic of gating element 13a and 13c and composite door; By closing that power running letter AND gate is opened speed-slackening signal or door 13f, constitute the brake logic circuit with the logic of gating element 13b and 13d and composite door.
Have 14 expressions according to the output of decision circuit 13 driving command to be exported to the driving command generation circuit of driver element 2 to 5 again, this driving command generation circuit 14 has: use the amplifier 14a that drives driver element 5 with the output of gating element 13a; With driving the amplifier 14b of driver element 2 with the output of gating element 13b; According to or the output of gating element 13e and drive the amplifier 14c of driver element 3 from the output that circuit 12e takes place PWM; According to or the output of gating element 13f and drive the amplifier 14d of driver element 4 from the output that circuit 12e takes place PWM, the decision circuit 13 and the driving command generation means 14 of being closed signal by the Men Kaixin AND gate from input speed control setup 12 and elevator control panel 11 constitute control device, and it is according to each driver element 2 to 5 of the switching signal drive controlling driving means of door.
Promptly, in the structure of embodiment 1, be brake logic circuit part in the decision circuit 13 with the different structure of existing example shown in Figure 9, door opens and closes abnormal signal still forces to export speed-slackening signal when producing speed-slackening signal brake logic circuit in Men Kai or door closed procedure although it has, and new construction is provided with: the inverter element 13i of the reverse signal of signal 11a is opened in output from the door of elevator control panel 11; Close the phase inverter 13j of the reverse signal of signal 11b with the door of exporting from elevator control panel 11.In this embodiment 1, the structure of brake logic circuit makes to be opened in the braking procedure at door, even door is opened signal cut, the logic product of closing the reverse signal of signal and speed-slackening signal by door also can obtain door and open speed-slackening signal, can carry out opening the door of the switching switch of instruction and open braking maneuver with door, close in the braking procedure at door simultaneously, even closing signal, door disconnects, the logic product of opening the reverse signal of signal and speed-slackening signal by door also can obtain door and close speed-slackening signal, can carry out closing the irrelevant door of the switching of instruction with door and close braking maneuver.Other structure is identical with existing control setup.
The following describes the action of said structure.
At first, door starts when doing, and door is opened signal 11a is input to speed control unit 12 from elevator control panel 11 velocity curve figure generation circuit 12b and decision circuit 13.Open signal 11a velocity curve figure generation circuit 12b according to this and produce predetermined speed value, when the speed detected value of this speed value specific rate detector 12c is big, then the output by differential amplifier 12d makes power running signal generation means 12f action, by power running signal generation means 12f outputting power CRANK PULSES.At this moment, decision circuit 13 with gating element 13a according to door open signal 11a, obtain door close signal 11b counter-rotating output phase inverter 13g output, and from the power running signal three's of power running signal generation means 12f logic product action, move according to this and the output of gating element 13a, the amplifier 14a of driving command generation means 14, driver element 5 actions, make by the signal with gating element 13a simultaneously or gating element 13e and amplifier 14c action, driver element 3 also moves.
Like this, by (+) end supply power of supply unit 1, (-) that flow into supply unit 1 by driver element 5, DC motor 10, driver element 3 holds, and makes DC motor 10 rotations.
Begin to open the door this moment, on the one hand, output resume controlling and driving element 5 by amplifier 14a is connected, on the other hand shown in Figure 10 (a) to (c), amplifier 14c makes driver element 3 do switch motion according to the output that circuit 12e takes place PWM, carries out pulse-width controlled and slowly acceleration corresponding to the difference of speed value and speed detected value.After this, the speed of DC motor 10 reaches speed value, in case difference diminishes, then shortens the turnon time of switch, and it is certain that the electric current decline that flows in the DC motor 10 makes it rotative speed.Then, in case arrive deceleration point then enter braking maneuver.
Yet, door is opened glancing impact, that is, the speed detected value that obtains from the speed value specific rate detector 12c of velocity curve figure generation circuit 12b hour, then cut off the power running signal of power running signal generation means 12f according to the output of differential amplifier 12d, and speed-slackening signal generation means 12g action and generation speed-slackening signal.In the time of the power running signal cut, driver element 5 is closed, make and gating element 13d or gating element 13f, amplifier 14d, driver element 4 actions simultaneously, and brake by obtaining speed-slackening signal that door closes the output of phase inverter 13j of reverse signal of signal 11b and speed-slackening signal generation means 12g.At this moment, open in the braking at door, even it is former thereby disconnect because of certain that door is opened signal 11a, owing to carry out door and open braking, can not change and can continue to hold braking maneuver so door is held braking maneuver by obtaining the output of phase inverter 13j that door closes the reverse signal of signal 11b.
Below, when door closed action, door closed signal 11b is input to speed control unit 12 from elevator control panel 11 velocity curve figure generation circuit 12b and decision circuit 13.Velocity curve figure generation circuit 12b closes signal 11b according to this and produces predetermined speed value, when the speed detected value that obtains as this speed value specific rate detector 12c is big, power running signal generation means 12f is according to the output action of differential amplifier 12d, power running signal generation means 12f outputting power CRANK PULSES.At this moment, by door close signal 11b, obtain door open signal 11a counter-rotating output phase inverter 13h output, and the power running signal three's of above-mentioned power running signal generation means 12f logic product make moving of decision circuit 13 with gating element 13b, the amplifier 14b of driving command generation means 14 is according to the output action of this and gating element 13b, driver element 2 also moves, made by the signal with gating element 13b simultaneously or gating element 13f and amplifier 14d action, driver element 4 also moves.
Like this, by (+) of supply unit 1 end supply power, by driver element 2, DC motor 10, driver element 4, electric current flows into (-) end of supply unit 1, DC motor 10 with the door evolution in the opposite direction on rotation.
At this moment, door begins to close, output controlling and driving element 2 by amplifier 14b continues conducting, on the other hand shown in Figure 10 (a) to (c), the output of circuit 12e takes place by PWM, amplifier 14d makes driver element 4 do switch motion, carries out pulse-width controlled corresponding to the difference of speed value and speed detected value and slowly quickens.After this, the speed of DC motor 10 reaches speed value, and difference diminishes, and the turnon time of switch shortens, and the electric current that flows into DC motor 10 descends, and rotates with certain speed.Enter braking maneuver when then arriving deceleration point.
Yet, door closes glancing impact, the i.e. speed detected value that obtains from the speed value specific rate detector 12c of velocity curve figure generation circuit 12b hour, cut off the power running signal of power running signal generation means 12f by the output of differential amplifier 12d, speed-slackening signal generation means 12g action produces speed-slackening signal.Close driver element 2 in the time of the power running signal cut, simultaneously, open the speed-slackening signal of the output of phase inverter 13i of reverse signal of signal 11a and speed-slackening signal generation means 12g and make with door 13c or door 13e, amplifier 14c, driver element 3 actions and brake by obtaining door.At this moment, close in the braking procedure at door, former thereby disconnect even door closes signal because of certain, owing to can open the output of phase inverter 13i of the reverse signal of signal 11a and carry out door and close control of braking by obtaining door, do not close the variation of braking maneuver so door can not take place, proceed and can make door close action.
Therefore, according to embodiment 1, it has the brake logic circuit, in Men Kai or door closed procedure, no matter door open and close signal whether unusually, under the situation that produces speed-slackening signal, this decision circuit still forces to export speed-slackening signal, simultaneously, because door is opened the reverse signal of signal to the formation of this brake logic circuit and the logic product of speed-slackening signal is closed speed-slackening signal as door, simultaneously door is closed the reverse signal of signal and the logic product of speed-slackening signal and open speed-slackening signal as door, so can carry out door no matter door opens and closes signal opens braking maneuver and closes braking maneuver, especially open in the braking procedure at door, even door is opened signal cut, also can obtain door and open speed-slackening signal by the logic product that door closes the reverse signal of signal and speed-slackening signal, carry out opening the logical of signal with door, disconnected irrelevant door is opened braking maneuver, close in the braking procedure at door simultaneously, even door closes signal cut, also can obtain door and close speed-slackening signal, carry out closing the logical of instruction with door by the logic product that door is opened the reverse signal of signal and speed-slackening signal, disconnected irrelevant door closes braking maneuver.Like this, even door opens and closes also can brake immediately the DC motor of driving gate when signal all disconnects and makes it to stop, can improve safety in utilization, the controllable function of door can not take place freely to move when stopping yet, simultaneously do not need special structure just can be applicable to the elevator door that can not obtain the such standard-sized sheet confining force of straight line door mechanism, can not make the braking of a full cut-off by self-closing device.
Embodiment 2
Below, Fig. 2 is the frame assumption diagram of control setup of the elevator door of embodiment 2.In Fig. 2, attached with prosign and omit its explanation with embodiment 1 same section.
As new formation, 13K represents that detecting gate is opened signal 11a and door closes that signal 11b connects simultaneously and gating element, the inverter element 13m that 13l represents to provide its reverse signal represent to obtain door open signal 11a and inverter element 13l output logic product with gating element 13n for obtain door close signal 11b and inverter element 13l output logic product and gating element, 13o for acquisition from the speed-slackening signal of speed-slackening signal generation means 12g and with the logic of the output of gating element 13K and or gating element.These formations with embodiment 1 in identical and formation gating element 13c and 13d or gating element 13e and 13f, inverter element 13i and 13j, constitute the brake logic circuit, this circuit is when door is opened signal 11a and closed signal 11b and connect simultaneously with door, and the force disconnect door opens and closes signal and also exports speed-slackening signal.
The following describes the action (work) of said structure.
At first, door starts when doing, and is identical with embodiment 1, and by (+) end supply power of supply unit 1, electric current is held by (-) that driver element 5, DC motor 10, driver element 3 flow into supply unit 1, makes DC motor 10 rotations.
At this moment, door begins to open, and the output resume controlling and driving element 5 of amplifier 14a is connected, and the output of PWM generation circuit 12e makes driver element 3 do switch motion by means of amplifier 14c on the other hand, difference corresponding to speed value and speed detected value is made pulse-width controlled, slowly quickens.After this, the speed of DC motor 10 reaches speed value, and difference diminishes, and the turnon time of switch shortens, and the electric current that flows into DC motor 10 descends, and it is rotated with constant speed.Then, promptly change braking maneuver in case arrive deceleration point.
Yet, door is opened glancing impact, that is the speed detected value that obtains of the speed value specific rate detector 12c of velocity curve figure generation circuit 12b hour, the power running signal of power running signal generation means 12f is cut off in the output of differential amplifier 12d, and speed-slackening signal generation means 12g action also produces speed-slackening signal.Also turn-off driver element 5 in the time of the power running signal cut, when door is opened signal 11a and is closed signal 11b and be not in on-state simultaneously with door, since obtain the door open signal 11a with the door close signal 11b logic product be output as low level with gating element 13K, the output of inverter element 13l becomes high level, with gating element 13n be low level, phase inverter 13j is a high level, so make or gating element 13o becomes high level by the speed-slackening signal of speed-slackening signal generation means 12g, with gating element 13d, or gating element 13f, amplifier 14d, driver element 4 actions (work) are braked.At this moment, even door is opened signal 11a because of certain reason disconnects, obtain output that door closes the phase inverter 13j of signal 11b counter-rotating output and also can make door hold braking maneuver not change and proceed door and hold braking maneuver.
Again, open in the braking procedure at door, when door was opened signal 11a and closed signal 11b and connect simultaneously with door, 13K was output as high level with gating element, inverter element 13l is output as low level, be output as low level with gating element 13m and 13n, and phase inverter 13i and 13j output becoming high level, become high level with the output of gating element 13c and 13d, its result, or gating element 13e and 13f make amplifier 14c and 14d action, drives driver element 3 and 4, brakes.
Below, when door closes action, identical with embodiment 1, by (+) end supply power of supply unit 1, electric current flows into (-) ends of supply units 1 through driver element 2, DC motor 10 driver elements 4, DC motor 10 with the door evolution in the opposite direction on rotation.At this moment, door begins to open, and the output of amplifier 14b makes driver element 2 continue to connect, on the other hand, the output that circuit 12e takes place PWM makes driver element 4 do switch motion through amplifier 14d, carries out pulse-width controlled corresponding to the difference of speed value and speed detected value, slowly quickens.After this, the speed of DC motor 10 reaches speed value, and difference diminishes, and the switch connection time shortens, and the electric current that flows into direct current motivation 10 descends, and it is rotated with constant speed.Then arrive deceleration point and promptly change braking maneuver over to.
Yet close glancing impact at door, that is the speed detected value that obtains of the speed value specific rate detector 12c of velocity curve figure generation circuit 12b hour, the power running signal of power running signal generation means 12f is cut off in the output of differential amplifier 12d, speed-slackening signal generation means 12g action produces speed-slackening signal.Driver element 2 is closed in the time of the power running signal cut, when door is opened signal 11a and is closed signal 11b and fail to be in on-state simultaneously with door, obtain the door open signal 11a with the door close signal 11b logic product be output as low level with gating element 13K, inverter element 13l output becoming high level, yet, since with gating element 13m be low level, inverter element 13i is a high level, so speed-slackening signal by speed-slackening signal generation means 12g, make or gating element 13o becomes high ordinary telegram, with gating element 13c, or gating element 13e, amplifier 14c, driver element 3 actions, brake.At this moment, former thereby be cut off even door closes signal 11b because of certain, obtain door and open the output of phase inverter 13i of the reverse signal of signal 11a and make door close braking maneuver not change, thereby can continue to close braking maneuver.
Again, close in the braking procedure at door, when door was opened signal 11a and closed signal 11b and connect simultaneously with door, 13K was output as high level with gating element, and inverter element 13l is output as low level, be output as low level with gating element 13m and 13n, phase inverter 13i and 13j are output as high level, are output as high level with gating element 13c and 13d, consequently, by or gating element 13e and 13f make amplifier 14c and 14d action, drive driver element 3 and 4 and brake.
Therefore, according to embodiment 2, the structure of brake logic circuit is done so that when proper Men Kaixin AND gate closes signal and connects simultaneously, the force disconnect door opens and closes signal and exports speed-slackening signal, even open and close signal thereby in door on-off action process, connect door simultaneously, make it to stop thereby also braking immediately, can prevent that again the self-closing power of door from close door fully the DC motor of driving gate.
Embodiment 3
Below, Fig. 3 is the frame assumption diagram of the control device for elevator door of embodiment 3.In Fig. 3, be marked with prosign and omit its explanation with Figure 1 and Figure 2 embodiment 1 and 2 same sections.
As new formation, 13p represents that detecting gate is opened signal 11a and door closes the joint denial gate element that signal 11b cuts off simultaneously, constitute the brake logic circuit with this joint denial gate element 13p with the structure with gating element 13c and 13d or gating element 13e and 13f, inverter element 13i and 13j or gating element 13o composition identical with embodiment 1 and 2, when door is opened signal 11a and is closed signal 11b and disconnect simultaneously with door, its generation of forced speed-slackening signal.
The following describes the action (work) of said structure.
At first, door starts when doing, and is identical with embodiment 1, and being held by (+) of supply unit 1 provides power supply, and electric current is held through (-) that driver element 5, DC motor 10, driver element 3 flow into supply units 1, makes DC motor 10 rotations.
This moment, door began to open, the output resume controlling and driving element 5 of amplifier 14a is connected, and on the other hand, the output that circuit 12e takes place PWM makes driver element 3 do switch motion by amplifier 14c, difference corresponding to speed value and speed detected value is carried out pulse-width controlled, slowly quickens.After this, the speed of DC motor 10 reaches speed value, and difference diminishes, and the turnon time of switch also shortens, and the electric current that flows into DC motor 10 descends, and rotates with a constant speed.Change braking maneuver when then reaching deceleration point over to.
Yet, door is opened glancing impact, that is the speed detected value that obtains of the speed value specific rate detector 12c of velocity curve figure generation circuit 12b hour, the power running signal of power running signal generation means 12f is cut off in the output of differential amplifier 12d, speed-slackening signal generation means 12g action produces speed-slackening signal.Driver element 5 also turn-offs in the time of the power running signal cut, when simultaneously door is opened signal 11a and door and is closed signal 11b and be not in simultaneously dissengaged positions, when obtaining door and opening signal 11a and door and close signal 11b and be not in simultaneously dissengaged positions, obtain the door open signal 11a with the door close signal 11b logic and joint denial gate 13p be output as low level, make or gating element 13o is a high level by the speed-slackening signal of speed-slackening signal generation means 12g, by making door close the output of the inverter element 13j of signal 11b counter-rotating, make and gating element 13d, or gating element 13f, amplifier 14d, driver element 4 actions are braked.At this moment, why plant former thereby disconnect, obtain the output of phase inverter 13j that door closes the reverse signal of signal 11b and make door open braking maneuver not change, and can continue to open braking maneuver no matter door is opened signal 11a.
Again, open in the braking procedure at door, when door is opened signal 11a and is closed signal 11b and cut off simultaneously with door, phase inverter 13i and 13j are output as high level, again because joint denial gate element 13p is output as high level, so with gating element 13c and 13d output becoming high level, the result by or gating element 13e and 13f make amplifier 14c and 14d action, drive driver element 3 and 4 and brake.
Secondly, when door closes action, identical with embodiment 1, by (+) of supply unit 1 end supply power, electric current flow through (-) end, DC motor 10 that driver element 2, DC motor 10, driver element 4 flow into supply units 1 with the door evolution in the opposite direction on rotation.At this moment, door begins to open output resume controlling and driving element 2 connections of amplifier 14b, the output of PWM generation circuit 12e makes driver element 4 do switch motion by amplifier 14d on the other hand, carries out pulse-width controlled corresponding to the difference of speed value and speed detected value, slowly quickens, after this, the speed of DC motor 10 reaches speed value, and difference diminishes, and the turnon time of switch shortens, the electric current of the DC motor of flowing through 10 descends, and it is rotated with certain speed.Then, arrive deceleration point, change braking maneuver over to.
Yet, door closes glancing impact, that is the speed detected value that draws of the speed value specific rate detector 12c of velocity curve figure generation circuit 12b hour, the power running signal of power running signal generation means 12f is cut off in the output of differential amplifier 12d, speed-slackening signal generation means 12g action produces speed-slackening signal.Driver element 2 turn-offs in the time of the power running signal cut, simultaneously when door is opened signal 11a and is closed signal 11b and be not in dissengaged positions simultaneously with door, joint denial gate element 13p is output as low level, speed-slackening signal by speed-slackening signal generation means 12g, or gating element 130 becomes high level, with gating element 13c or gating element 13e, amplifier 14c, driver element 3 actions, brake.At this moment, former thereby disconnect because of certain even door closes signal 11b, the output that makes door open the phase inverter 13i of signal 11a counter-rotating also can make door close braking maneuver and not change and continue door and close braking maneuver.
Again, door closes in the braking, door is opened signal 11a and door and is closed signal 11b simultaneously when cutting off, and joint denial gate element 13p export high level, or gating element 13o exports and becomes high level, again, because phase inverter 13i and 13j output becoming high level so export high level with gating element 13c and 13d, consequently pass through or gating element 13e and 13f, make amplifier 14c and 14d action, drive driver element 3 and 4, brake.
Therefore, according to embodiment 3, because the structure of its brake logic circuit makes joint denial gate element 13p just force the output speed-slackening signal when signal cuts off simultaneously in case detection gos out to open and close, even cuts off simultaneously and also can brake the DC motor of driving gate immediately and make and stop so door opens and closes a signal, can improve safety in utilization, can prevent that again the self-closing power of door from close door fully.
Embodiment 4
Fig. 4 is the frame assumption diagram of the control setup of embodiment 4 elevator doors.
In Fig. 4, be marked with same-sign with existing routine same section shown in Figure 9 and represent, and omit its explanation.As new symbol, 20 is relay, when interrupting, source of AC 1e throwing off, contact 20a and 20b closure, contact 20c and 20d are divided open, 21a, 21b are storage battery, during the door on-off action under the power interruption situation, it is connected in 3 and 4 gate terminal of glancing impact action drives element, is used to make this driver element 3 and 4 ON Actions to carry out braking maneuver.By contact 20a to 20d and storage battery 21a and 21b, when the door on-off action under the power interruption situation, driver element 3 and 4 is cut off driving command generation means 14 sides, and above-mentioned storage battery 21a and 21b are connected in the grid of driver element 3 and 4, make this driver element 3 and 4 ON Actions, carry out braking maneuver, constitute in this way the autonomous DC electrical motor 10 of driving gate is braked the glancing impact switch means that door is stopped immediately.
The control setup of the elevator door of embodiment 4, though its door starts work and door closes action and existing example is carried out equally, but in door on-off action process, in case the power interruption of source of AC 1e, relay 20 is thrown off, contact 20c, 20d disconnect the driver element 3 and 4 of glancing impact action are separated from amplifier 14c and 14d, and while contact 20a and 20b closure are with the direct-current power supply driver element 3 of storage battery 21a and 21b and 4 gate terminal.So, make driver element 3 and 4 ON Actions, utilize the generated energy of the rotation generation of autonomous DC electrical motor 10 to carry out braking maneuver.Again, the generating voltage polarity that is produced by 10 rotations of autonomous DC electrical motor is different because of hand of rotation, the current path of glancing impact is the close circuit through autonomous DC electrical motor 10, driver element 4, rectifier cell 7 and autonomous DC electrical motor 10, or through the close circuit of autonomous DC electrical motor 10, driver element 3, rectifier cell 8 and autonomous DC motor 10.
Therefore, according to embodiment 4, during power interruption, it is detected by relay 20, and the driver element 3 and 4 that glancing impact is moved cuts off driving command generation means 14, simultaneously storage battery 21a and 21b are connected to the gate terminal of this driver element 3 and 4, make this driver element ON Action, in the door on-off action, even supply unit interrupts, also can brake autonomous DC electrical motor 10 immediately door is stopped, thereby improve safety in utilization, can prevent that again the self-closing power of door from close door fully.
Embodiment 5
Fig. 5 is the frame assumption diagram of control setup of the elevator door of embodiment 5.
In Fig. 5, be marked with same-sign and omit its explanation with same section embodiment illustrated in fig. 4.As new symbol, 22a and 22b represent rectifier cell, when the door on-off action under the power interruption situation, the contact 20a to 20d of the relay 20 of throwing off during by source of AC 1e power interruption and above-mentioned rectifier cell 22a and 22b, make driver element 3 and 4 cut off driving command generation means 14 sides, driver element 3 and 4 ON Actions are braked, the autonomous DC electrical motor 10 of driving gate is braked the glancing impact switch means that door is stopped immediately to constitute.
The control setup of the elevator door of embodiment 5, though its door starts work and door closes action and existing example is carried out equally, but in the door on-off action, in case the power interruption of source of AC 1e takes place, then relay 20 is thrown off, contact 20c and 20d branch are opened, the driver element 3 and 4 of glancing impact action are separated from amplifier 14c and 14d, simultaneously, contact 20a and 20b closure, by rectifier cell 22a or 22b the generating voltage that 10 rotations of autonomous DC electrical motor produce is added on the gate terminal of driver element 3 and 4, makes driver element 3 and 4 ON Actions carry out braking maneuver.Again, the generating voltage polarity of autonomous DC electrical motor 10 rotation generations is different because of hand of rotation.Yet even the polarity difference, rectifier cell 22a or 22b also can make driver element 3 and 4 ON Actions, carry out braking maneuver.Again, the current path of glancing impact is the close circuit of autonomous DC electrical motor 10, driver element 4, rectifier cell 7 and autonomous DC electrical motor 10, or is the close circuit of autonomous DC electrical motor 10, driver element 3, rectifier cell 8 and self-excitation type DC motor 10.
Therefore, during according to embodiment 5, power interruption, it is detected and the driver element 3 and 4 of glancing impact action is cut off driving command generation means 14 sides with relay 20, simultaneously, the generation power of autonomous DC electrical motor 10 is added to the gate terminal of driver element 3 and 4, make its ON Action, in the door on-off action, even supply unit interrupts, the autonomous DC electrical motor 10 that also can brake driving gate by said structure immediately stops door, thereby can improve safety in utilization, can prevent that again the self-closing power of door from close door fully.
Embodiment 6
Fig. 6 is the frame assumption diagram of control setup of the elevator door of embodiment 6.
In Fig. 6, represent same section with Fig. 4 embodiment 4 same-sign, 20 for connecting the relay of source of AC 1e, 20a is the contact of relay 20, it is connected in the armature two ends of DC motor 10, and its formed closed circuitly when relay 20 was thrown off, and glancing impact constitutes switch means.
Though starting at door, top structure does and door closes in the action with existing routine identical, in case but in the door on-off action during source of AC 1e power interruption, relay 20 is thrown off, because contact 20a closure, so 10 liang of terminal shortcircuits of DC motor, in case DC motor 10 rotations promptly constitute braking maneuver.
Therefore, according to embodiment 6, as the glancing impact switch means, during the power interruption of source of AC 1e, because of relay 20 and the contact 20a thereof that throws off, the armature two ends of DC motor 10 form short circuit, in the door on-off action, door is stopped, improving safety in utilization even power interruption also can be braked DC motor 10 immediately, again, can prevent the door self-closing power make the door close fully.
Embodiment 7
Fig. 7 is the frame assumption diagram of control setup of the elevator door of embodiment 7.
Among Fig. 7, the symbolic representation same section identical with Fig. 4 embodiment, the 20th, be connected in the relay of power supply 1e, 20a is the contact of relay 20, makes the two ends of direct current supply line be in short circuit and connects, relay 20 forms closed circuit when throwing off, constitute the glancing impact switch means.
According to said structure, though door starts and does and door closes action with existing routine identical, in the door on-off action, in case source of AC 1e opens circuit, relay 20 dead electricity are because contact 20a closure makes direct current supply line two terminal shortcircuits, in case DC motor 10 is rotated then produced braking maneuver.Promptly, in case above-mentioned contact 20a closure, make the motor rotation, the electric current close circuit of rectifier cell 7, DC motor 10, rectifier cell 9, contact 20a and rectifier cell 7 of flowing through then, and the close circuit of rectifier cell 8, DC motor 10, rectifier cell 6, contact 20a and rectifier cell 8, constitute braking maneuver.
Therefore, according to embodiment 7, switch means as glancing impact, the relay 20 and the contact 20a thereof of dead electricity during according to the power interruption of source of AC 1e, make power lead two terminal shortcircuits and constitute, in the door on-off action, even power interruption also can be braked immediately the DC motor 10 of driving gate door is stopped, can not meet the user, eliminate user's danger, can improve safety, can prevent that again the self-closing power of door from close door fully.
Embodiment 8
Fig. 8 is the frame assumption diagram of the control setup of embodiment 8 elevator doors.
In Fig. 8, represent same section with 7 same-sign embodiment illustrated in fig. 7, and omit its explanation.As new symbol, 23 for being located at the switch of the glancing impact switch means at direct current supply line two ends with the contact 20a of relay 20, and the short circuited braking circuit that should disconnect embodiment 7 during elevator reparing is so that operation.
Said structure, the same with embodiment 7, can carry out braking maneuver, promptly use the manual manipulation door also to be not easy to make its action, cut off short circuited braking circuit by operating switch 23 and could cut off braking maneuver this moment, can carry out maintenance activity easily.
Even in embodiment 6,, also can expect to obtain same effect by contact 20a is located at the armature two ends of DC motor 10 with above-mentioned switch 23 again.
Therefore, according to the foregoing description 8,, make because of relay 20 detects the open circuited switch 23 of the short circuited braking circuit of power interruption owing to have, so can when power interruption, carry out the elevator reparing operation easily as the glancing impact switch means.
In sum, according to the present invention, in the control device owing to each driver element that drives above-mentioned driving means at switching signal according to elevator door, have in Men Kai or door closed procedure, when producing speed-slackening signal, open and close the unusual brake logic circuit of irrespectively forcing the output speed-slackening signal of signal with door, carry out irrespectively that door is opened braking maneuver and door closes braking maneuver so can open and close signal with door, like this, even opening and closing signal, each all breaks, under the situation that produces speed-slackening signal, the DC motor that can brake driving gate immediately stops door, can prevent that DC motor from freely moving, eliminate and use danger, improve safety, also have the effect that the self-closing power that prevents door is closed door fully simultaneously.
According to the present invention, the reverse signal by door being opened signal and the logic product of speed-slackening signal are closed speed-slackening signal output as door, the logic product of simultaneously door being closed the reverse signal of signal and speed-slackening signal is opened speed-slackening signal as door and is exported and constitute the brake logic circuit, like this, open in the braking at door, even opening signal, door disconnects, also can obtain door and open speed-slackening signal by the logic product that door closes the reverse signal of signal and speed-slackening signal, carry out opening the logical of signal with door, disconnected irrelevant door is opened braking maneuver, close in the braking at door simultaneously, even closing signal, door disconnects, also can obtain door and close speed-slackening signal by the logic product that door is opened the reverse signal of signal and speed-slackening signal, carry out closing the logical of signal with door, disconnected irrelevant door closes braking maneuver, thus, each opens and closes also can brake immediately the DC motor of driving gate when signal all disconnects door is stopped, prevent that it from freely moving, can improve safety in utilization, can obtain again and prevent the effect of closing fully because of self-closing power.
Again, according to the present invention, when the Men Kaixin AND gate closes signal and connects simultaneously, open and close signal and export speed-slackening signal by the force disconnect door and constitute the brake logic circuit, like this in the door on-off action, even door opens and closes signal and connects simultaneously, the DC motor that also can brake driving gate immediately stops door, can prevent the anomalous behavior of the DC motor of control gate, eliminates and uses danger, improved safety, can obtain to prevent the effect of closing fully again because of self-closing power.
Again, according to the present invention, the Men Kaixin AND gate closes signal when cutting off simultaneously by forcing the output speed-slackening signal to constitute the brake logic circuit, even door switching signal cuts off simultaneously like this, the DC motor that also can brake driving gate stops door, prevents the electrical motor anomalous behavior of control gate, eliminates and uses danger, improve safety, can obtain again and prevent the effect of closing fully because of self-closing power.
According to the present invention, possessing the autonomous DC electrical motor that the driving elevator door is arranged; Supply with the supply unit of direct supply for this autonomous DC electrical motor; Have the driver element of the full bridge structure that makes the rectifier cell anti-parallel connection and the driving means of the above-mentioned autonomous DC electrical motor rotation of reversible control; In the control device for elevator door according to the control device of each driver element of the above-mentioned driving means of the switching of elevator door instruction drive controlling, also possess to have and detect the detection means that above-mentioned supply unit interrupts; The glancing impact switch means of above-mentioned autonomous DC electrical motor being braked according to the detection signal of this detection means.Have the control setup of the elevator door of each part mentioned above, in the door on-off action,, door is stopped even supply unit interrupts also braking the autonomous DC electrical motor of driving gate, improved safety in utilization, had again and prevent the effect of closing fully because of the self-closing power of door.
According to the present invention, have the storage battery of supplying with direct supply as above-mentioned glancing impact switch means, the detection signal that draws according to above-mentioned detection means cuts off above-mentioned control device with the driver element of glancing impact work, above-mentioned storage battery is connected on the control electrode terminal of this driver element makes this driver element connection work.Like this, in the door on-off action,, also can brake the autonomous DC electrical motor immediately, prevent anomalous behavior, can improve safety in utilization, have the effect that the self-closing power that prevents door is closed door fully again even supply unit interrupts.
According to the present invention, as above-mentioned glancing impact switch means, it cuts off above-mentioned control device according to the detection signal that above-mentioned detection means obtains with the driver element that glancing impact moves, simultaneously the generation power of above-mentioned autonomous DC electrical motor is added on the control electrode terminal of this driver element and makes this driver element connection work, like this, do not need special power supply, in the door on-off action, even supply unit interrupts, also can brake the autonomous DC electrical motor of driving gate immediately, prevent anomalous behavior, improved safety in utilization, have the effect that the self-closing power that prevents door is closed door fully again.
According to the present invention, the detection signal that above-mentioned glancing impact switch means obtains according to above-mentioned detection means makes armature two terminal shortcircuits of above-mentioned autonomous DC electrical motor, can brake with the electric current that the rotation of autonomous DC electrical motor is sent like this, do not need special power supply, in the door on-off action, even power interruption also can be braked the autonomous DC electrical motor of driving gate immediately door is stopped, can not meet the user, improve safety, had the effect that the self-closing power that prevents door is closed door fully again.
According to the present invention, the detection signal that above-mentioned glancing impact switch means obtains according to above-mentioned detection means is with power lead two terminal shortcircuits, and like this, the generation current that can produce with the rotation of autonomous DC electrical motor is braked, and does not need special power supply.In the door on-off action, even supply unit interrupts also braking immediately the autonomous DC electrical motor door is stopped, can not meet the user, improved safety, have the self-closing power that prevents because of door again and make an effect of closing fully.
Again, according to the present invention, above-mentioned glancing impact switch means has disconnection and makes it the operating switch of short circuited short circuit current by the detection signal of above-mentioned detection means, like this, has the effect that the maintenance activity that makes elevator when power interruption carries out easily.

Claims (9)

1. the control setup of an elevator door, it has: the DC motor that drives elevator door; Have the driver element of full bridge structure and the driving means of the above-mentioned DC motor rotation of reversible control; According to the control device of each driver element of the above-mentioned driving means of switching signal drive controlling of above-mentioned elevator door,
It is characterized in that, in above-mentioned control device, also have the control signal that produces in closing according to Men Kai or door, no matter door opens and closes the whether unusual brake logic circuit of forcing to export speed-slackening signal of signal,
Above-mentioned brake logic circuit have the logic product of the 1st phase inverter, the output that obtains the 1st phase inverter and speed-slackening signal of the reverse signal that out gate leaves signal and out gate closes that the 1st of speed-slackening signal closes the logic product of the 2nd phase inverter of the reverse signal of signal, the output that obtains the 2nd phase inverter and speed-slackening signal with door, out gate and out gate open speed-slackening signal the 2nd with door, close speed-slackening signal or above-mentioned door according to above-mentioned door and open that speed-slackening signal is controlled above-mentioned driver element so that above-mentioned DC motor is braked.
2. control device for elevator door as claimed in claim 1 is characterized in that, above-mentioned brake logic circuit, and when door was opened signal and door and closed signal and connect simultaneously, the force disconnect door opened and closed signal, and the output speed-slackening signal.
3. control device for elevator door as claimed in claim 1 is characterized in that, above-mentioned brake logic circuit when door is opened signal and door and closed signal and cut off simultaneously, is forced the output speed-slackening signal.
4. the control setup of an elevator door, it has: the autonomous DC electrical motor that drives elevator door; To be transformed into direct current (DC) and direct supply will be added on the supply unit of this autonomous DC electrical motor from the alternating current that exchanges power supply; Have the driver element of rectifier cell anti-parallel connection bonded assembly full bridge structure and the driving means of the above-mentioned autonomous DC electrical motor rotation of reversible control; According to the control device of each driver element of the above-mentioned driving means of switching signal drive controlling of elevator door,
It is characterized in that, also further have: have the relay in parallel and be used to detect the detection means of the interruption of above-mentioned supply unit with above-mentioned source of AC; Have that action according to the relay of this detection means opens and closes the contact of change action and the switching change action by this contact is braked above-mentioned autonomous DC electrical motor when power interruption glancing impact switch means.
5. control device for elevator door as claimed in claim 4, it is characterized in that, above-mentioned glancing impact switch means has the storage battery of supplying with direct supply, and it cuts off above-mentioned control device according to the detection signal of above-mentioned detection means with the driver element of glancing impact work, and the control electrode terminal that simultaneously above-mentioned storage battery is connected to this driver element makes it connection work.
6. control device for elevator door as claimed in claim 4, it is characterized in that, above-mentioned glancing impact switch means, according to the detection signal of above-mentioned detection means the driver element of glancing impact work is cut off above-mentioned control device, simultaneously, the control electrode terminal of the generation power of above-mentioned autonomous DC electrical motor being supplied with this driver element makes it connection work.
7. control device for elevator door as claimed in claim 4 is characterized in that, above-mentioned glancing impact switch means, and according to the detection signal of above-mentioned detection means, glancing impact makes armature two terminal shortcircuits of above-mentioned autonomous DC electrical motor.
8. control device for elevator door as claimed in claim 4 is characterized in that, above-mentioned glancing impact switch means, and according to the detection signal of above-mentioned detection means, glancing impact makes power lead two terminal shortcircuits.
9. as claim 7 or 8 described control device for elevator door, it is characterized in that above-mentioned glancing impact switch means also can have disconnection makes it short circuited short circuit current according to the detection signal of above-mentioned detection means operating switch.
CN94118605A 1994-05-31 1994-11-30 Unit for controlling elevator door Expired - Fee Related CN1109648C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11904194A JP3432589B2 (en) 1994-05-31 1994-05-31 Elevator door control device
JP119041/1994 1994-05-31
JP119041/94 1994-05-31

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CN1110956A CN1110956A (en) 1995-11-01
CN1109648C true CN1109648C (en) 2003-05-28

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KR101157650B1 (en) * 2009-11-06 2012-06-18 엘레코리아(주) Elevator door control system and the method
CN102616638A (en) * 2012-03-14 2012-08-01 埃克森塞弗(苏州)电梯部件科技有限公司 Digital direct current door motor control system
KR101364993B1 (en) * 2012-09-21 2014-02-20 동림지앤텍(주) Circuit for controlling safety of dc motor
JP6218952B2 (en) * 2014-08-25 2017-10-25 三菱電機株式会社 Elevator door opening / closing device and method for repairing elevator door opening / closing device
CN104370176B (en) * 2014-11-10 2016-08-24 南京台菱电梯工程有限公司 Hoistway door car door two-way detecting system
WO2021225000A1 (en) * 2020-05-08 2021-11-11 三菱電機株式会社 Elevator door device

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CN103922214A (en) * 2014-03-11 2014-07-16 深圳市海浦蒙特科技有限公司 Elevator door motor control method
CN103922214B (en) * 2014-03-11 2016-08-17 深圳市海浦蒙特科技有限公司 Control method of elevator door-motor

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KR0175078B1 (en) 1999-04-15
JP3432589B2 (en) 2003-08-04
CN1110956A (en) 1995-11-01
KR950031869A (en) 1995-12-20
JPH07315734A (en) 1995-12-05

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