CN217577927U - Door opening module in advance and elevator control system - Google Patents

Abstract

The embodiment of the application relates to the technical field of elevators and discloses a module for opening a door in advance and an elevator control system. The advanced door opening module comprises a communication module, an input module, a control unit, an output module and an auxiliary control loop; the communication module is in communication connection with a main board of the elevator, and the output ends of the communication module and the input module are electrically connected with the input end of the control unit; the output module comprises a controllable switch, and the control end of the controllable switch is electrically connected with the output end of the control unit; the output end of the output module is electrically connected with a brake of the elevator; the auxiliary control loop is positioned between the input module and the output module, and the output end of the input module is electrically connected with the control end of the controllable switch through the auxiliary control loop. The module and the elevator control system that open door in advance that this application embodiment provided when simplifying the circuit, have improved the efficiency and the reliability that the elevator opened the door.

Description

Door opening module in advance and elevator control system

Technical Field

The embodiment of the application relates to the technical field of elevators, in particular to a module for opening a door in advance and an elevator control system.

Background

In order to improve the operation efficiency of the elevator and save the time of passengers waiting for the opening of the elevator door, an elevator system is generally provided with an advance door opening module to realize the function of opening the door in advance. Meanwhile, when the elevator car accidentally moves due to some reasons such as failure of a control system, the power supply of the brake is cut off in time to stop the elevator, and the safety of the elevator system is ensured.

The existing elevator system door opening module in advance usually adopts a pure mechanical switch structure, the function of opening the door in advance is realized through the interlocking of safety relays, only simpler logic can be realized, and the problems of high cost and difficult scheme realization exist. In addition, the function of opening the door in advance is realized through the interlocking of the safety relays, and the problems of high cost of the safety relays and complex control time sequence exist.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a module and elevator control system open door in advance, when simplifying the circuit, improve the efficiency and the reliability of opening the door of elevator system.

In order to solve the above technical problem, an embodiment of the present application provides an advance door opening module, which includes a communication module, an input module, a control unit, an output module, and an auxiliary control loop; the communication module is in communication connection with a main board of the elevator, and the output ends of the communication module and the input module are electrically connected with the input end of the control unit; the output module comprises a controllable switch, and the control end of the controllable switch is electrically connected with the output end of the control unit; the output end of the output module is electrically connected with a brake of the elevator; the auxiliary control loop is positioned between the input module and the output module, and the output end of the input module is electrically connected with the control end of the controllable switch through the auxiliary control loop; the input module is used for receiving a gate area signal and outputting the gate area signal to the control unit; the control unit receives the door zone signal, and outputs a door lock short-circuit instruction to the output module when the door zone signal is effective and when the door lock short-circuit instruction output by the communication module is received; and the output module receives the door lock short-circuit instruction, and the contact of the controllable switch is closed.

In addition, the output module comprises a plurality of groups of controllable switches, and each group of controllable switches comprises at least two controllable switches; when each group of controllable switches receives a door lock short-circuit instruction output by the control unit, the contact of each group of controllable switches is switched to a conducting state from a turn-off state.

In addition, the door opening module in advance further comprises an additional brake output module used for controlling an additional brake, and at least one group of controllable switches is electrically connected with the additional brake.

Further, the controllable switch comprises a relay.

In addition, the gate region signal includes an upper gate region signal and a lower gate region signal; the input module receives the upper gate area signal and the lower gate area signal within a preset time interval and outputs the upper gate area signal and the lower gate area signal to the control unit; the control unit receives the upper door zone signal and the lower door zone signal, and when the upper door zone signal and the lower door zone signal are effective and the control unit receives the door lock short-circuit instruction output by the communication module, the control unit outputs the door lock short-circuit instruction to the output module.

In addition, the advanced door opening module further comprises a power module, and the power module is connected with the control unit.

In addition, the above-mentioned module of opening the door in advance still includes power monitoring module, power monitoring module's input with power module connects, power monitoring module's output with the control unit is connected.

In addition, the control unit includes a programmable controller.

The embodiment of the application also provides an elevator control system, which comprises a main board, a door zone signal sensor and the door opening module in advance.

In addition, the door zone signal sensor is in communication connection with the input module of the door opening module in advance.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

the embodiment of the application provides a module and elevator control system open door in advance, through setting up communication module and a control unit, has simplified the internal circuit of elevator system module of opening door in advance, accomplishes the signal with the required signal of each module (like sealing a door signal) short circuit and conveys with the form of communication simultaneously, and the control unit passes through and communicates between the mainboard of communication module and elevator. The module of should opening door in advance still includes input module and output module, input module is used for receiving door district signal and with door district signal output to the control unit, the control unit is when door district signal DZ1, DZ2 are effective, and receive the lock short circuit instruction of communication module output, the control unit then exports lock short circuit instruction to output module, output module receives the contact closure of controllable switch behind the lock short circuit instruction, make switching on of elevator control circuit, in order to realize that the elevator opens the door in advance, improve the efficiency that the elevator opened the door in the elevator system. In addition, the input module can also directly cut off the controllable switch of the output module through the auxiliary control loop, so that the brake output of the elevator is cut off, the elevator is stopped, and the safety of an elevator system is ensured.

Drawings

One or more embodiments are illustrated by the corresponding figures in the drawings, which are not meant to be limiting.

Fig. 1 is a schematic structural diagram of an advance door opening module according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an advance door opening module according to another embodiment of the present application;

FIG. 3 is a circuit diagram of an early door opening module in an embodiment in accordance with the present application;

fig. 4 is a schematic diagram of the structure of an elevator control system in an embodiment according to the application.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.

In order to improve the door opening efficiency of an elevator, an advance door opening module is usually arranged in an elevator system, that is, when the elevator is about to reach a target landing, the elevator door can be opened in advance on the premise of meeting safety. When the elevator stops to the target landing, the elevator door is opened in advance, so that a user can rapidly go out of the elevator or the user can rapidly remove goods in the elevator conveniently, and therefore the efficiency of opening the door of the elevator is improved by the door opening module of the elevator system in advance. As the elevator system has a safety circuit controlling the brake of the elevator, normally the elevator cannot be run when the elevator is open. Because of the existence of the elevator safety loop, the elevator cannot run when the door is opened, and because the contact of the elevator door lock is disconnected when the door is opened, the elevator cannot run. Aiming at the problem, the embodiment of the application provides a module for realizing the function of opening the door in advance through a programmable electronic mode, when an elevator is about to reach a target landing but is not flat, a main board sends a door closing instruction under the condition of meeting safety, and the module for opening the door in advance is short-circuited with a landing door and a car door lock, so that the safety loop is connected in the process of opening the door of the elevator, the function of opening the door in advance of the elevator is realized, and the operation efficiency of the elevator is improved.

Referring to fig. 1, an embodiment of the present application provides an advance door opening module, which includes a communication module 101, an input module 102, a control unit 103, an output module 104, and an auxiliary control loop 105; the communication module 101 is in communication connection with a main board of an elevator, and the output ends of the communication module 101 and the input module 102 are electrically connected with the input end of the control unit 103; the output module 104 includes a controllable switch 1041, and a control end of the controllable switch 1041 is electrically connected to an output end of the control unit 103; the output end of the output module 104 is electrically connected with a brake of the elevator; the auxiliary control loop 105 is located between the input module 102 and the output module 104, and the output end of the input module 102 is electrically connected to the control end of the controllable switch 1041 through the auxiliary control loop 105; the input module 102 is configured to receive a gate area signal and output the gate area signal to the control unit 103; the control unit 103 receives the door zone signal, and when the door zone signal is valid and when a door lock short circuit instruction output by the communication module 101 is received, the control unit 103 outputs a door lock short circuit instruction to the output module 104; the output module 104 receives the door lock short-circuit instruction, and the contact of the controllable switch 1041 is closed.

With reference to fig. 1, in order to solve the problem that the elevator cannot operate due to the fact that when the elevator is opened, a contact of a safety relay on an elevator door is opened, in the advance door opening module according to the embodiment of the present application, by providing an input module 102, a communication module 101, a control Unit 103, and an output module 104, a Microcontroller (micro controller Unit, abbreviated as MCU) is used as the control Unit 103 of the advance door opening module, and the control Unit 103 and the communication module 101 perform information interaction with a main board of the elevator. Meanwhile, in the embodiment of the application, the circuits of the feedback signal and the door sealing signal are integrated in the communication module 101, the main board of the elevator communicates with the control unit 103 in an information interaction mode, and the main board of the elevator outputs instruction information to the control unit 103 through the communication module 101. The input module 102 of the embodiment of the application is configured to receive a door zone signal and output the door zone signal to the control unit 103, when the control unit 103 is effective in the door zone signals DZ1 and DZ2 and the control unit 103 receives a door lock short-circuit instruction output by the communication module 101, the control unit 103 controls the output module 104 to output a door lock short-circuit instruction, and the output module 104 closes a contact of the controllable switch 1041 after receiving the door lock short-circuit instruction.

It should be noted that the controllable switch 1041 may adopt a relay. The embodiment of the application realizes normal operation of the elevator when the elevator is opened in advance by switching the contacts of the relay outputs SO1 and SO2 of the output module 104. That is to say, when the door zone signals DZ1 and DZ2 received by the control unit 103 are valid and the control unit 103 receives the door lock short circuit instruction output by the communication module 101, the control unit 103 outputs the door lock short circuit instruction to the output module 104, and switches over the contacts of the relay outputs SO1 and SO2 of the output module 104, SO as to ensure that the elevator control loop is conducted, SO that the elevator can keep a running state, SO that the elevator can be opened in advance when running, and the door opening efficiency of the elevator in the elevator system is improved.

In addition, when the door zone signal DZ1 or DZ2 is invalid, the input module 102 can not only control the output module 104 through the control unit 103 to switch off the controllable switch 1041, but also directly switch off the controllable switch 1041 of the output module 104 through the auxiliary control loop 105, so that the power supply of the brake of the elevator is cut off, the elevator is stopped, and the reliability of the elevator system is ensured.

In some embodiments, the advance door opening module of the embodiment of the present application employs a programmable electronic safety board to reliably detect the state of the controllable switch 1041. The door opening advance module can be a Safety board based on PESSRAL (Programmable Electronic Systems in Safety Related Applications for Lifts), i.e. the output module 104 meets the requirements of PESSRAE. Specifically, the security plate is composed of a printed circuit board and electronic components integrated into the printed circuit board.

Fig. 1 shows a case where two controllable switches are provided on the output module 104, and the two controllable switches 1041 may be connected in series or in parallel to implement a function of switching contacts of the relay outputs SO1 and SO2 of the output module 104 when the gate zone signals DZ1 and DZ2 are valid.

It will be understood that the door zone signals DZ1, DZ2 mentioned here effectively refer to signals triggered by a position defining that the elevator is in a safe area. The door zone signal can be detected and obtained by adopting a door zone signal sensor, and when the elevator is about to run to a target landing zone, whether the elevator is in the position of a safety zone or not is detected by the door zone signal sensor.

In some embodiments, the output module 104 comprises a plurality of groups of controllable switches 1041, each group of controllable switches 1041 comprising at least two controllable switches 1041; when each group of controllable switches 1041 receives a door lock short-circuit instruction output by the control unit 103, the contact of each group of controllable switches 1041 is switched from an off state to an on state.

Referring to fig. 2, in the case that the elevator has front and rear doors, the controllable switches 1041 may be provided in multiple groups, so as to realize the advance opening of the front and rear doors of the elevator. As shown in fig. 2, the relay outputs of the output module 104 include three groups, which are relay outputs SO1, SO2, SO3, SO4, SO5, and SO6, respectively, and the controllable switches 1041 are switches K10 to K16. As shown in fig. 3, the relay outputs SO1 and SO2 form a circuit loop with the front door 1 and the front door 2 of the elevator, and the relay outputs SO3 and SO4 form a circuit loop with the rear door 1 and the rear door 2 of the elevator; because the asynchronous motor has an additional brake 108, a group of controllable switches 1041 is needed to be added for outputting, as shown in fig. 3, the group of controllable switches 1041 (switch K15, switch K16) is added, the switch K15 and the switch K16 are connected in parallel at two ends of the additional brake 108, and at this time, the relay outputs SO5 and SO6 and the additional brake 108 form a circuit loop.

Specifically, referring to the circuit loop at a in fig. 3, the relay outputs SO1 and SO2 form a door lock control loop with the front door 1 and the front door 2, when the contacts of the front door 1 and the front door 2 are opened, the contacts of the switch K10 and the switch K11 between the relay outputs SO1 and SO2 are closed, and the whole elevator control loop is turned on, SO that the elevator can open the front door of the elevator in advance when the elevator runs to the destination landing.

In fig. 3, the front door 1 and the front door 2 may be a landing door and a car door of an elevator, respectively. Here, the front door 1 may be a landing door of an elevator or a car door of an elevator, and the front door 2 may also be a landing door of an elevator or a car door of an elevator, which is not limited herein in the embodiment of the present application.

Because the doors of the elevator generally comprise two doors (a landing door and a car door), the opening and closing of the landing door of the elevator are realized by a door opening blade arranged on the car door. Each landing door is provided with a door lock. After the landing door is closed, the mechanical latch hook of the door lock is engaged, meanwhile, the landing door and the car door are closed through the electrical interlocking contact, the elevator control loop is switched on, and the elevator can be started to run at the moment. The elevator layer door has a fireproof effect in a building and is used for dividing fireproof subareas. The safety switch of the car door can ensure that the elevator cannot normally run when the door is not safely closed in place or locked. This application embodiment is through control unit 103 when door district signal DZ1, DZ2 are effective, to output module 104 output lock short circuit instruction, output module 104's relay receives the closed instruction of relay, the relay output, SO1, SO 2's contact is closed, when the contact disconnection of front door 1, front door 2 (when the contact disconnection of layer door, sedan-chair door), SO1, SO 2's contact is closed (switch K10, switch K11's contact is closed), whole elevator control circuit switches on, realize that the elevator opens the door in advance.

Similarly, referring to the circuit loop at B in fig. 3, the relay outputs SO3 and SO4 form a door lock control loop with the back doors 1 and 2, when the contacts of the back doors 1 and 2 are opened, the contacts of the switches K12, K13 and K14 between the relay outputs SO1 and SO2 are closed, and the control loop is turned on, SO that the elevator can open the back doors of the elevator in advance when the elevator is running to the destination landing.

It can be understood that in the elevator system, due to the safety setting of the system, two channels are arranged at the input part and the output part of the elevator system, such as door zone signals DZ1 and DZ2, relay outputs SO1 and SO2, relay outputs SO3 and SO4 and relay outputs SO5 and SO6, SO as to ensure that each door lock short circuit loop has two different controllable switches, and prevent the elevator door lock short circuit loop from failing when one of the controllable switches fails.

In some embodiments, the advance door opening module further comprises an additional actuator 108, and at least the set of controllable switches 1041 is electrically connected to the additional actuator 108.

As mentioned above, if an asynchronous motor is used in the elevator system, an additional brake 108 is provided, such as the circuit loop at C in fig. 3, and a set of controllable switches 1041 (switch K15 and switch K16) is electrically connected to the additional brake 108. When the door zone signal DZ1 or DZ2 is not valid, the input module 102 can directly cut off the set of controllable switches 1041 through the auxiliary control loop 105, thereby cutting off the power supply of the additional brake 108, stopping the elevator and ensuring the safety of the elevator operation.

It is understood that the door zone signal DZ1 or DZ2 is not active here, which means that the door zone signal DZ1 or DZ2 is not active when the elevator leaves the door zone position.

In some embodiments, the controllable switch 1041 comprises a relay.

In some embodiments, the gate region signals include an upper gate region signal and a lower gate region signal; the input module 102 receives the upper gate area signal and the lower gate area signal within a preset time interval, and outputs the upper gate area signal and the lower gate area signal to the control unit 103; the control unit 103 receives the upper door zone signal and the lower door zone signal, and when the upper door zone signal and the lower door zone signal are both valid and the control unit 103 receives a door lock short circuit instruction output by the communication module 101, the control unit 103 outputs a door lock short circuit instruction to the output module 104.

In some embodiments, the upper door zone signal and the lower door zone signal can be collected by an upper leveling sensor and a lower leveling sensor mounted on the elevator car, wherein both the upper door zone signal and the lower door zone signal are level signals and are high level signals. When both the upper gate area signal and the lower gate area signal are valid, the control unit 103 outputs a gate lock short circuit instruction to the output module 104.

The module that opens door in advance of this application embodiment mainly can realize following three functions:

firstly, the function of opening the door in advance. When the elevator is about to run to a target landing area, when the control unit 103 receives the door lock short circuit (in advance door opening) instruction sent by the main board of the elevator when the door zone signals DZ1 and DZ2 are both effective, the control unit 103 sends the door lock short circuit instruction to the output module 104, the controllable switch 1041 (relay) on the output module 104 is closed, the relay outputs SO1 and SO2 to short circuit the door lock, and the elevator is opened in advance, SO that the door opening efficiency of the elevator can be improved.

Second, the re-leveling function. When the elevator is in a door opening state at a target landing, the elevator sinks and is not leveled any more due to the fact that a steel wire rope of the elevator extends due to the fact that a heavy object or a person in the elevator car, and in order to enable the sill of the elevator car and the target landing to be kept basically horizontal all the time and bring convenience to people or carrying vehicles and goods to enter and exit, the elevator system generally has a releveling function. When the elevator sinks and is not leveled any more, the main board of the elevator outputs a door lock short circuit instruction to the control unit 103 through the communication module 101, and the elevator runs upwards to finish leveling again.

Thirdly, the car accidental movement protection function. An accidental elevator car movement protection system (UCMP) is used, that is, when the elevator is in the leveling position, the elevator car is accidentally moved due to some reasons, such as failure of the control system, and when the elevator is moved to cause the door zone signal DZ1 or DZ2 to be invalid, the input module 102 can also directly cut off the output of the controllable switch 1041 (relay) through the auxiliary control loop 105, so as to cut off the power supply of the brake, and stop the elevator.

In some embodiments, the door opening advance module further comprises a power module 106, and the power module 106 is connected with the control unit 103.

As shown in fig. 1, the output terminal of the power module 106 is electrically connected to the input terminal of the control unit 103, and the power module 106 provides power to the control unit 103.

In some embodiments, the door opening advance module further includes a power supply monitoring module 107, an input end of the power supply monitoring module 107 is connected to the power supply module 106, and an output end of the power supply monitoring module 107 is connected to the control unit 103.

As shown in fig. 1, the power monitoring module 107 is disposed between the power module 106 and the control unit 103, an input end of the power monitoring module 107 is connected to the power module 106, an output end of the power monitoring module 107 is connected to the control unit 103, and the power monitoring module 107 is configured to monitor whether a power used in the module that opens the door in advance is normal.

In some embodiments, the control unit 103 comprises a programmable controller.

As shown in fig. 1 and fig. 2, in the embodiment of the present application, a single microcontroller MCU is used as the control unit 103, and compared with the architecture design of multiple controllers in the related art, the embodiment of the present application simplifies the internal circuit of the module that opens the door in advance, and improves the door opening efficiency.

Referring to fig. 4, the embodiment of the present application further provides an elevator control system, which includes a main board 109, a door zone signal sensor, and the above advanced door opening module.

In some embodiments, the main board 109 of the elevator performs information interaction with the control unit 103 through the communication module 101 of the door opening module in advance; the main board 109 is used for detecting the state of the elevator; the door zone signal sensor 110 is used for acquiring a door zone signal, and when the control unit 103 receives an effective door zone signal and receives a door lock short circuit instruction output by the main board 109 through the communication module 101, the control unit outputs a door lock short circuit instruction to the output module 104 of the module which opens the door in advance so as to close the controllable switch 1041 and open the door in advance of the elevator, thereby improving the door opening efficiency of the elevator.

In some embodiments, the door zone signal sensor is communicatively coupled to the input module 102 of the advance door module.

In some embodiments, the door zone signal sensor obtains the door zone signals DZ1 and DZ2, and then the door zone signal sensor outputs the door zone signals DZ1 and DZ2 to the input module 102 of the door opening module, the input module 102 outputs the door zone signals DZ1 and DZ2 to the control unit 103, and the control unit 103 performs the next operation when the door zone signals DZ1 and DZ2 are valid and after receiving the door lock short-circuit command output by the communication module 101.

The embodiment of the application simplifies the internal circuit of the door opening module of the elevator system in advance by providing the door opening module and the elevator control system and realizing information interaction with the main board 109 of the elevator through one control unit 103. Meanwhile, the advanced door opening module further comprises an input module 102 and an output module 104, the input module 102 is used for receiving door zone signals and outputting the door zone signals to the control unit 103, when the door zone signals DZ1 and DZ2 are effective, the control unit 103 receives a door lock short circuit instruction output by the communication module 101, the control unit 103 outputs a door lock short circuit instruction to the output module 104, and the output module 104 receives the door lock short circuit instruction and then closes a contact of the controllable switch 1041 to enable an elevator control loop to be conducted, so that the elevator is opened in advance, and the door opening efficiency of the elevator in an elevator system is improved. When the door zone signal DZ1 or DZ2 is invalid, the input module 102 can also directly cut off the controllable switch 1041 of the output module 104 through the auxiliary control loop 105, thereby cutting off the brake power supply of the elevator, stopping the elevator and ensuring the reliability of the elevator system.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of implementations of the present application and that various changes in form and details may be made therein without departing from the spirit and scope of the present application.

Claims (10)

1. An advance door opening module, comprising:

the device comprises a communication module, an input module, a control unit, an output module and an auxiliary control loop;

the communication module is in communication connection with a main board of the elevator, and the output ends of the communication module and the input module are electrically connected with the input end of the control unit;

the output module comprises a controllable switch, and the control end of the controllable switch is electrically connected with the output end of the control unit; the output end of the output module is electrically connected with a brake of the elevator;

the auxiliary control loop is positioned between the input module and the output module, and the output end of the input module is electrically connected with the control end of the controllable switch through the auxiliary control loop;

the input module is used for receiving a gate area signal and outputting the gate area signal to the control unit; the control unit receives the door zone signal, and outputs a door lock short-circuit instruction to the output module when the door zone signal is effective and when the door lock short-circuit instruction output by the communication module is received; and the output module receives the door lock short circuit instruction, and the contact of the controllable switch is closed.

2. The advance door opening module of claim 1, wherein the output module comprises a plurality of sets of controllable switches, each set of controllable switches comprising at least two controllable switches;

when each group of controllable switches receives a door lock short-circuit instruction output by the control unit, the contact of each group of controllable switches is switched to a conducting state from a turn-off state.

3. The advance door opening module of claim 2, further comprising an additional brake output module for controlling an additional brake, at least the set of controllable switches being electrically connected to the additional brake.

4. The early door opening module of claim 2, wherein the controllable switch comprises a relay.

5. The door opening module in advance of claim 1, wherein the door zone signal comprises an upper door zone signal and a lower door zone signal;

the input module receives the upper gate area signal and the lower gate area signal within a preset time interval and outputs the upper gate area signal and the lower gate area signal to the control unit;

the control unit receives the upper door zone signal and the lower door zone signal, and when the upper door zone signal and the lower door zone signal are effective and the control unit receives the door lock short-circuit instruction output by the communication module, the control unit outputs the door lock short-circuit instruction to the output module.

6. The advance door module of claim 1, further comprising a power module connected to the control unit.

7. The door opening module in advance according to claim 6, further comprising a power supply monitoring module, wherein an input end of the power supply monitoring module is connected with the power supply module, and an output end of the power supply monitoring module is connected with the control unit.

8. The advance door module of claim 1, wherein the control unit comprises a programmable controller.

9. An elevator control system, comprising:

a main board, a door zone signal sensor and an early door opening module as claimed in any of claims 1 to 8.

10. The elevator control system of claim 9, wherein the door zone signal sensor is communicatively coupled to an input module of the early gate module.

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