Car roof box and elevator system

Abstract

The utility model discloses a car roof box and an elevator system. The car roof box comprises a terminal board, a first control board, a switch module, a button module and a power module. The terminal board is connected with external equipment, the first control board is connected with the terminal board, the first control board achieves communication and signal transmission with the external equipment through the terminal board, and the external equipment comprises a shaft, a lift car, a door machine and a machine room. And the switch module is connected with the terminal board and is used for switching the state of the external equipment into a manual operation state or an automatic operation state. And the button module is connected with the terminal board and is used for controlling the external equipment to operate manually when the state of the external equipment is the manual operation state. And the power supply module is connected with the terminal board and is used for inputting an alternating current power supply and executing a power supply conversion function to output a plurality of different power supplies based on the alternating current power supply so as to at least supply power to the first control board and the external equipment. Through the mode, the probability of wiring errors can be reduced, the working efficiency is improved, and the risk that devices are damaged is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of elevators, and particularly to a car top box and an elevator system. Background Art

[0002] In an elevator system, the car top box is installed on the top of the car and is mainly used by commissioning personnel and maintenance personnel. During the installation process of the elevator system, it is necessary to control the operation of the car through the car top box to complete the installation of the signal cables and sensors in the hoistway. After the elevator system is officially put into use, the maintenance personnel need to stand on the top of the car and use the car top box to control the up and down operation of the car to check whether the signals and mechanical structures in the hoistway are in good condition. Therefore, the car top box is of great significance in the elevator system.

[0003] However, the wiring of the traditional car top box is complex, the signals are messy, and the strong electricity and weak electricity are not distinguished, which is likely to cause wiring errors during installation or adjustment, resulting in not only low work efficiency but also possible damage to the devices in the elevator system. For example, when the connection wires of the strong electricity and weak electricity are connected wrongly, the devices in the elevator system may be burned out. Summary of the Utility Model

[0004] The embodiments of the present application provide a car top box and an elevator system, which can reduce the probability of wiring errors, improve work efficiency, and reduce the risk of device damage.

[0005] In a first aspect, the embodiments of the present application provide a car top box, including a terminal board, a first control board, a switch module, a button module, and a power supply module. The terminal board is connected to external devices, where the external devices include a hoistway, a car, a door machine, and a machine room. The first control board is connected to the terminal board and is used to realize communication and signal transmission with the external devices through the terminal board. The switch module is connected to the terminal board and is used to switch the state of the external devices to a manual operation state or an automatic operation state. The button module is connected to the terminal board and is used to control the manual operation of the external devices when the state of the external devices is in the manual operation state. The power supply module is connected to the terminal board and is used to input an alternating current power supply and perform a power conversion function to output multiple different power supplies based on the alternating current power supply to supply power to at least the first control board and the external devices.

[0006] In one or more embodiments, the terminal board includes a maintenance control port. The button module includes a run button, an up button, a down button, and an emergency stop button. The run button includes a first normally open switch and a second normally open switch. The up button includes a third normally open switch and a fourth normally open switch. The down button includes a fifth normally open switch and a sixth normally open switch. The switch module includes a first normally closed switch, a second normally closed switch, and a seventh normally open switch. The maintenance control port is respectively connected to the run button, the up button, the down button, the emergency stop button, the switch module, and the first control board. Among them, the first end of the first normally open switch is respectively connected to the first voltage signal and the first end of the first normally closed switch. The second end of the first normally open switch is respectively connected to the first end of the third normally open switch and the first end of the fifth normally open switch. The second ends of the third normally open switch, the fifth normally open switch, and the first normally closed switch are all connected to the first control board. The first combination formed by the parallel connection of the fourth normally open switch and the sixth normally open switch is connected in series with the second normally open switch to form a second combination. The second normally closed switch is connected in parallel with the second combination. The end of the second normally closed switch connected to the second normally open switch inputs a second voltage signal. The end of the second normally closed switch connected to the first combination is connected to the first end of the emergency stop button. The second end of the emergency stop button is connected to the first control board. The seventh normally open switch is connected between two ports in the machine room. Among them, when the external device is in the manual operation state, the seventh normally open switch is closed to short-circuit the two ports in the machine room and make the machine room determine that the functions implemented by the car top box have priority.

[0007] In one or more embodiments, the terminal board includes a hoistway signal port. The hoistway signal port is respectively connected to a first sensor disposed in the hoistway and the first control board. The first control board is configured to receive the signal output by the first sensor. Among them, the signal output by the first sensor includes a door area signal and a leveling signal.

[0008] In one or more embodiments, the terminal board includes a car control port. The car includes a second control board. The car control port is respectively connected to the second control board and the first control board to realize communication between the first control board and the second control board.

[0009] In one or more embodiments, the terminal board includes a door system signal port. The car further includes a car door. The door system signal port is respectively connected to a second sensor disposed on the car door, a third sensor disposed on the door machine, and the first control board. Among them, the first control board is configured to receive the signals output by the second sensor and the third sensor. The signal output by the second sensor at least includes a light curtain signal, a door open in-place signal, and a door close in-place signal. The signal output by the third sensor at least includes a door machine temperature detection signal.

[0010] In one or more embodiments, the car top box includes a lighting lamp, a landing bell, and an intercom connected to a terminal board. The lighting lamp is configured to perform a lighting function when the external device is in a manual operation state. The landing bell is configured to output an indication signal based on the car reaching a preset position when the external device is in an automatic operation state. The intercom is configured to receive or output voice messages.

[0011] In one or more embodiments, the terminal board includes an indication signal port, and the landing bell includes a voice device. The indication signal port is respectively connected to the voice device and a first control board. The first control board controls the voice device through the indication signal port.

[0012] In one or more embodiments, the terminal board includes an auxiliary device port. The auxiliary device port is respectively connected to the lighting lamp and the first control board. The first control board controls the lighting lamp through the auxiliary device port.

[0013] In one or more embodiments, the terminal board includes an emergency and communication port, and the power supply module further includes a battery. The emergency and communication port is respectively connected to the power supply module, the landing bell, and the intercom. The power supply module outputs a power supply through the emergency and communication port to supply power to the landing bell and the intercom, and the battery outputs an emergency power supply through the emergency and communication port.

[0014] In one or more embodiments, the terminal board further includes a safety circuit port, an LED lamp port, a relay port, and an auxiliary cable port. The safety circuit port is respectively connected to a safety clamp in the car and the first control board. The LED lamp port is respectively connected to the first control board and an LED lamp. The relay port is respectively connected to the first control board and a relay. The auxiliary cable port is respectively connected to the car and the machine room to achieve communication, power supply, and signal transmission between the car and the machine room.

[0015] In a second aspect, an embodiment of the present application provides an elevator system, including a hoistway, a car, a door machine, a machine room, and the car top box as described above. The car top box is respectively connected to the hoistway, the car, the door machine, and the machine room.

[0016] The beneficial effects of the present application are as follows: The car top box in the embodiments of the present application includes a terminal board, a first control board, a switch module, a button module, and a power module. Among them, the terminal board is connected to external devices, the first control board is connected to the terminal board, and the first control board is used to communicate with and transmit signals to external devices through the terminal board. Among them, the external devices include a hoistway, a car, a door machine, and a machine room. The switch module is connected to the terminal board and is used to switch the state of the external device to a manual operation state or an automatic operation state. The button module is connected to the terminal board and is used to control the manual operation of the external device when the state of the external device is in the manual operation state. The power module is connected to the terminal board and is used to input an AC power supply and perform a power conversion function to output multiple different power supplies based on the AC power supply to supply power to at least the first control board and external devices. Through the above process, all connection wires can be connected to the terminal board, so as to uniformly manage all connection wires through the terminal board. For example, the connection wires of strong electricity and weak electricity are managed separately, which can reduce the probability of wiring errors, is beneficial to improving work efficiency, and reduces the risk of device damage. Description of the Drawings

[0017] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations are not intended to limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements.

[0018] Figure 1 is a schematic diagram of the composition block diagram of the elevator system provided by the embodiments of the present application;

[0019] Figure 2 is a schematic diagram of the composition block diagram of the car top box provided by the embodiments of the present application Figure 1 ;

[0020] Figure 3 is a schematic diagram of the composition block diagram of the first control board provided by the embodiments of the present application;

[0021] Figure 4 is a schematic diagram of the composition block diagram of the car top box provided by the embodiments of the present application Figure 2 ;

[0022] Figure 5 is a schematic diagram of the composition block diagram of the terminal board provided by the embodiments of the present application and its connection with other devices Figure 1 ;

[0023] Figure 6 is a schematic diagram of the circuit structure of the maintenance control port in the terminal board provided by the embodiments of the present application connected to the switch module, the button module, and the first control board;

[0024] Figure 7 is a schematic diagram of the circuit structure of the switch module connected to the machine room provided by the embodiments of the present application;

[0025] Figure 8 is a block diagram of the terminal block provided by the embodiments of the present application and a schematic diagram of its connection to other devices Figure 2 . Specific embodiments

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and detailedly described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] It should be noted that when an element is expressed as "connected" to another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween.

[0028] In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0029] Please refer to Figure 1 , Figure 1 is a schematic diagram of the block diagram of the elevator system provided by the embodiments of the present application. As Figure 1 shown, the elevator system 1000 includes a machine room 500, a door machine 400, a hoistway 300, a car 200 and a car top box 100 in any embodiment of the present application. Among them, the car top box 100 is respectively connected to the car 200, the hoistway 300, the door machine 400 and the machine room 500.

[0030] The machine room 500, also known as the elevator machine room or elevator machinery room, is a space that houses the equipment and control systems necessary for the operation of the elevator.

[0031] In some embodiments, the machine room 500 includes the driving host (traction machine) of the elevator, a control cabinet, a speed limiter and other mechanical and electrical equipment necessary for the operation of the elevator.

[0032] The door machine 400, fully called the elevator door machine system, is a key device responsible for controlling the opening and closing of the elevator door. The door machine 400 is mainly installed on the top of the car 200 or the front wall of the car 200.

[0033] In some embodiments, the door machine 400 includes components such as a door machine motor, a speed reducer, and a transmission mechanism. Among them, the door machine motor provides a power source, usually an AC or DC motor, and drives the opening and closing of the elevator door according to the instructions of the control system; the speed reducer is used to reduce the high-speed rotation speed of the motor and convert it into a low-speed and high-torque output to more smoothly control the movement of the door; the transmission mechanism such as a door machine chain or belt converts the rotation of the speed reducer into a linear motion of the door wheel along the guide rail to achieve the opening and closing of the elevator door.

[0034] In some embodiments, the hoistway 300 includes a vertical passage designed for the elevator to travel up and down, a guide rail system, safety devices, lighting facilities, a ventilation system, and various sensors. Among them, the guide rail system is the guide rail installed in the hoistway for the car 200 and the counterweight to slide, ensuring the stable and safe operation of the elevator in the vertical direction. The safety devices include a speed limiter, a safety clamp, etc. to ensure the safety during the operation of the elevator. The sensors include floor sensors (also known as leveling sensors), speed sensors, door area sensors, and other intelligent sensors such as pressure sensors, acceleration sensors, and sound sensors to more comprehensively monitor the operating state of the elevator and improve the overall safety and intelligence level. Among them, the floor sensors are used to accurately detect the position of the car 200 on the floor, ensuring that the car 200 can accurately stop at the designated floor. The speed sensors monitor the operating speed of the elevator to ensure its safe operation at a predetermined speed. The door area sensors can detect whether the car 200 has reached the correct floor and is aligned with the area where the landing door is located, so as to prepare for the opening and closing operations of the door.

[0035] The car 200 is an enclosed space in the elevator that directly carries passengers or goods and moves vertically up and down.

[0036] In some embodiments, the car 200 is composed of a strong metal frame, including a bottom plate, a top plate, a front wall, a rear wall, and two side walls. The frame is filled with sound insulation and shock absorption materials, and the outside is covered with decorative panels such as stainless steel, glass, or customized materials to improve the aesthetics and durability.

[0037] In some embodiments, a second control board is provided inside the car 200, and the second control board can realize functions such as floor selection and lighting control.

[0038] The car top box 100 is an important area located at the top of the car, mainly serving the maintenance, repair, and safety system of the elevator.

[0039] In the related art, the connection between the car top box and external equipment (including the car 200, the shaft 300, the door machine 400 and the machine room 500) is directly connected through connecting wires, which leads to complicated wiring, chaotic signals, and no distinction between strong current and weak current. It is easy to cause wiring errors during installation or adjustment, which not only leads to low work efficiency, but may even damage the components in the elevator system. For example, when the connecting wires between strong current and weak current are connected incorrectly, the components in the elevator system may be burned out.

[0040] Based on this, the car top box provided in the embodiment of the present application helps to reduce the probability of wiring errors by uniformly managing the connection lines between the car top box and external devices.

[0041] Please refer to Figure 2 , Figure 2 The schematic diagram of the composition block diagram of the car top box provided in the embodiment of the present application. The car top box 100 includes a terminal board 101, a first control board 102, a switch module 103, a button module 104 and a power module 105. The terminal board 101 is connected to an external device.

[0042] In some embodiments, the external equipment includes a car 200, a hoistway 300, a door machine 400, and a machine room 500. The terminal board 101 is a connection device used in electrical installation, mainly used for connecting and distributing wires and cables in a circuit. The terminal board 101 is a board with multiple electrical connection ports, which can be screw-type, spring-type or other forms, and are designed to fix and connect wires to ensure the safety and stability of electrical connections.

[0043] The first control board 102 is connected to the terminal board 101, and the first control board 102 is used to realize communication and signal transmission with external devices through the terminal board 101. The signal transmission between the first control board 102 and the external device includes the first control board 102 outputting a control signal to the external device and the first control board 102 collecting a signal fed back by the external device (such as a signal output by a sensor in the external device).

[0044] In some embodiments, please refer to Figure 3 , Figure 3 FIG. 1 is a schematic diagram showing a block diagram of the components of the first control board 102. Figure 3 As shown, the first control board 102 includes a micro control unit 1021 , an indicator light unit 1022 and a control board port 1023 .

[0045] Among them, the Microcontroller Unit (MCU) 1021 is an integrated circuit that integrates a Central Processing Unit (CPU), memory (including RAM and ROM or Flash), input / output (I / O) interfaces, timer / counters, interrupt systems, Analog-to-Digital Converters (ADCs), Digital-to-Analog Converters (DACs), etc. on a single chip for executing control tasks. The microcontroller unit 1021 communicates and transmits signals with external devices through the control board port 1023 and the terminal board 101.

[0046] In some embodiments, the indicator light unit 1022 includes indicator lights for indicating relevant operations performed by the microcontroller unit 1021, such as a communication indicator light when the microcontroller unit 1021 communicates with external devices, or an indicator light when the control unit 1021 receives input signals.

[0047] The control board port 1023 is also a connection device used in electrical installations. In some embodiments, the control board port 1023 includes multiple electrical connection ports, which can be screw-type, spring-type, or other forms, designed to fix and connect wires to ensure the safety and stability of electrical connections. The control board port 1023 realizes signal connection with the terminal board, including the input signal of the microcontroller unit 1021, the output signal of the microcontroller unit 1021, the power supply of the microcontroller unit 1021, and the communication signal between the microcontroller unit 1021 and external devices.

[0048] Please refer back to Figure 2 , the switch module 103 is connected to the terminal board 101 and is used to switch the state of the external device to the manual operation state or the automatic operation state. Among them, when the external device is in the manual operation state, the external device such as the car can be manually operated to confirm whether the function of the external device is normal, so as to realize the maintenance of the external device. When the external device is in the automatic operation state, the external device can realize the normal functions of the elevator system, that is, the functions of normally transporting passengers and goods.

[0049] In some embodiments, the switch module 103 can also be used to control the lighting in the hoistway to be turned on or off. When the switch module 103 switches the external device to the manual state, the switch module 103 can simultaneously turn on the lighting in the hoistway to assist in the maintenance of the car, etc. The switch module 103 includes at least one electronic or mechanical switch, and by controlling the switch to be turned off or on, the state of the external device is switched to the manual operation state or the automatic operation state; by controlling the switch to be turned off or on, the lighting in the hoistway is turned on or off.

[0050] The button module 104 is connected to the terminal board 101. The button module 104 is used to control the manual operation of the external device when the status of the external device is the manual operation status. By operating the button module 104, the operation of the car can be manually controlled to determine whether the function of the vertical transportation of the car is normal. The button module 104 includes at least one electronic or mechanical button. By manually operating the button, a command or signal can be sent to achieve the manual control of the external device.

[0051] The power supply module 105 is connected to the terminal board 101. The power supply module 105 is used to input an AC power supply. In some embodiments, the AC power supply is the mains power. The power supply module 105 is also used to perform a power conversion function to output multiple different power supplies based on the AC power supply to supply power to at least the first control board 102 and the external device. That is, the power supply module 103 can convert the AC power supply into multiple power supplies with different voltage magnitudes, such as 12V, 5V and other power supplies.

[0052] In some embodiments, the power supply module 105 further includes a battery. The battery is used as a backup battery and can provide temporary power when the power supply module 105 cannot output a power supply based on the AC power supply, such as when the AC power supply is cut off, to ensure the basic functions or safe operation of the elevator system. When the power supply module 105 normally inputs the AC power supply, the power supply module 105 can output a power supply for charging the battery based on the AC power supply. In some embodiments, the power supply module 105 further includes a socket, and the socket can provide an AC power supply. The socket can be used to provide power for maintenance tools when the elevator system is under maintenance.

[0053] In Figure 2 In the shown embodiment, each connection line can be connected to the terminal board 101 to uniformly manage each connection line through the terminal board 101. For example, the connection lines of the strong electricity and the weak electricity are separately managed, so that the probability of wiring errors can be reduced, which is beneficial to improving work efficiency and reducing the risk of device damage. Secondly, different electrical connection ports can also be configured on the terminal board 101 for different functions, so as to further prevent wiring errors, and is also helpful for signal recognition, simplify maintenance work and improve work efficiency. In addition, in different application scenarios, if the needs of different end customers are to be met, only the electrical connection ports of the terminal board need to be modified, the application range is wider, and various non-standard requirements can also be met, which is beneficial to improving the practicability.

[0054] In one embodiment, as Figure 4 shown, the car top box 100 further includes a lighting lamp 106, a landing bell 107 and an intercom 108 connected to the terminal board 101.

[0055] Among them, the lighting lamp 106 is used to perform a lighting function to assist in the maintenance of the elevator system when the status of the external device is the manual operation status.

[0056] The arrival bell 107 is used to output an indication signal based on the car 200 reaching a preset position when the status of the external device is the automatic operation state. Specifically, when the car 200 is about to reach the selected floor (corresponding to the preset position), the arrival bell 107 will notify the passengers by means of an indication signal, such as sound (such as bell sound, beep sound or voice broadcast) or light (such as the flashing of an indicator light), indicating that the elevator is about to dock.

[0057] The intercom 108 is used to receive or output voice information. In some embodiments, the intercom 108 is used to communicate with the machine room during the maintenance of the elevator system.

[0058] Please refer to Figure 5 , Figure 5 An exemplary block diagram of the terminal board 101 and a schematic diagram of the connection of the terminal board 101 to other devices (including external devices, the first control board 102, the switch module 103, the button module 104, the power module 105, the lighting lamp 106, the arrival bell 107 and the intercom 108, etc.) are shown.

[0059] As Figure 5 shown, the terminal board 101 includes a maintenance control port 1011, and the maintenance control port 1011 is respectively connected to the switch module 103, the button module 104 and the first control board 102.

[0060] Please refer to Figure 6 , Figure 6 A schematic circuit diagram showing the connection of the maintenance control port 1011 in the terminal board 101 to the switch module 103, the button module 104 and the first control board 102 is shown. As Figure 6 shown, the button module 104 includes an operation button, an up button, a down button and an emergency stop button S31. Among them, the maintenance control port 1011 is respectively connected to the operation button, the up button, the down button, the emergency stop button S31, the switch module 103 and the first control board 102 through cables.

[0061] The operation button includes a first normally open switch S11 and a second normally open switch S12, the up button includes a third normally open switch S13 and a fourth normally open switch S14, the down button includes a fifth normally open switch S15 and a sixth normally open switch S16, and the switch module 103 includes a first normally closed switch S21 and a second normally closed switch S22.

[0062] Among them, the first end of the first normally open switch S11 is respectively connected to the first voltage signal SI N1 and the first end of the first normally closed switch S21. The second end of the first normally open switch S11 is respectively connected to the first end of the third normally open switch S13 and the first end of the fifth normally open switch S15. The second ends of the third normally open switch S13, the fifth normally open switch S15 and the first normally closed switch S21 are all connected to the first control board 102.

[0063] The first combination formed by the parallel connection of the fourth normally open switch S14 and the sixth normally open switch S16 is connected in series with the second normally open switch S12 to form a second combination. The second normally closed switch S22 is connected in parallel with the second combination. The second voltage signal SI N2 is input to one end of the second normally closed switch S22 connected to the second normally open switch S12. One end of the second normally closed switch S22 connected to the first combination is connected to the first end of the emergency stop button S31. The second end of the emergency stop button S31 is connected to the first control board 102.

[0064] Specifically, when the switch module 103 switches the external device to the automatic operation state, the first normally closed switch S21 and the second normally closed switch S22 remain closed. Moreover, when the external device is operating normally, the emergency stop button S31 also remains closed. The first voltage signal SI N1 is input to the first control board 102 through the first normally closed switch S21, and the second voltage signal SI N2 is input to the first control board 102 through the second normally closed switch S22 and the emergency stop button S31. The first control board 102 determines that the external device is in the normal automatic operation state.

[0065] When the switch module 103 switches the external device to the manual operation state, the first normally closed switch S21 and the second normally closed switch S22 are both opened. Moreover, when the external device is operating normally, the emergency stop button S31 remains closed.

[0066] In this case, when the first normally open switch S11 and the second normally open switch S12 are closed, and the third normally open switch S13 and the fourth switch S14 are closed, the first voltage signal SI N1 is input to the first control board 102 through the first normally open switch S11 and the third normally open switch S13, and the second voltage signal SI N2 is input to the first control board 102 through the second normally open switch S12 and the fourth normally open switch S14. The first control board 102 determines that the up button has been pressed when receiving the first voltage signal SI N1, and determines that it is necessary to control the car to go up when receiving the second voltage signal.

[0067] When the first normally open switch S11 and the second normally open switch S12 are closed, and the fifth normally open switch S15 and the sixth switch S16 are closed, the first voltage signal SIN1 is input to the first control board 102 through the first normally open switch S11 and the fifth normally open switch S15, and the second voltage signal SIN2 is input to the first control board 102 through the second normally open switch S12, the sixth normally open switch S16 and the emergency stop button S31. When receiving the first voltage signal SIN1, the first control board 102 determines that the down button has been pressed, and when receiving the second voltage signal, it determines that it is necessary to control the car to descend.

[0068] The above realizes the process of switching the state of the external device to the manual operation state or the automatic operation state, and realizes the interlock between these two states, so as to prevent the abnormal situation of the automatic operation of the external device when the state of the external device is the manual operation state, which is beneficial to improving the safety of the elevator system and protecting the personal safety of maintenance personnel.

[0069] In some embodiments, in order to further improve safety, a maintenance priority function is also set. Specifically, as Figure 7 shown, the switch module 103 further includes a seventh normally open switch S23. The seventh normally open switch S23 is connected to two ports in the machine room (port K1 and port K2 respectively). When the external device is switched to the manual operation state, the seventh normally open switch S23 is closed, and the two ports in the machine room 500 are short-circuited, so that the machine room 500 determines that the external device has been switched to the manual operation state, and the machine room 500 determines that the functions implemented by the car top box 100 (such as the function of manually controlling the operation of the car 100) are prioritized. And the car top box 100 is usually used to implement various functions for maintaining the elevator system. Therefore, the way of prioritizing the functions implemented by the car top box 100 is recorded as the maintenance priority function to further improve safety and protect the personal safety of maintenance personnel. When the external device is switched to the automatic operation state, the seventh normally open switch S23 is disconnected, and the connection between the two ports in the machine room 500 is disconnected, so that the machine room 500 determines that the external device has been switched to the automatic operation state.

[0070] Please return to refer to Figure 5 , the terminal board 101 includes a hoistway signal port 1012. Among them, the hoistway signal port 1012 is respectively connected to the first sensor 301 and the first control board 102 provided in the hoistway 300 through cables. The first sensor 301 includes various sensors provided in the hoistway 300.

[0071] Specifically, the first control board 102 is configured to receive the signals output by the first sensor 301. Among them, the signals output by the first sensor 300 at least include the landing signal and the leveling signal. The landing signal is mainly used to control the opening and closing of the car door of the car 200. When the car 200 reaches the predetermined floor and stops stably, the second control board in the car 200 will send a landing signal indicating that the car door should be opened. The leveling signal means that the car 200 has been precisely aligned and stopped at the horizontal position of the preset floor, which is achieved by the first sensor 301, such as an optical switch, a proximity switch, etc.

[0072] In some embodiments, the signals output by the first sensor 301 further include a deceleration signal. The deceleration signal, usually referred to as the forced speed change or the up and down speed reducer signal, is mainly used to control the deceleration of the car 200 when approaching both ends (the top floor and the bottom floor) of the hoistway 300 or other specific floors, which is beneficial to make the car 200 stop more smoothly and safely.

[0073] In some embodiments, the signals output by the first sensor 301 further include a limit signal. The limit signal of the hoistway can prevent the car 200 from exceeding its predetermined operating range, ensuring that the car 200 will not hit the top or bottom of the hoistway 300, thereby protecting the safety of passengers and the integrity of the equipment. The limit signal mainly includes an upper limit signal (usually realized by an upper limit switch) and a lower limit signal (usually realized by a lower limit switch). Among them, the upper limit switch limit signal is installed near the top of the hoistway. When the car 200 rises close to the top of the hoistway 300, the upper limit switch is triggered. After the upper limit switch is triggered, the elevator should immediately decelerate and stop, and at the same time activate the safety mechanism, such as activating the safety clamp, etc., to prevent the car from continuing to move. The lower limit switch is installed near the bottom of the hoistway, and its function is opposite to that of the upper limit signal. When the car 200 descends close to the bottom of the hoistway 300, the lower limit switch is triggered. After the upper limit switch is triggered, the descending action should be immediately stopped to prevent the car 200 from falling into the pit.

[0074] Of course, the signals output by the first sensor 301 may further include other signals, and the present application does not make specific restrictions on this. For example, the first sensor 301 output further includes an absolute position encoder, and the absolute position encoder can detect and feedback the absolute position of the car 200 in the hoistway 300 with high precision through the output signals.

[0075] In this embodiment, the terminal board 101 includes a car control port 1013, and the car 200 includes a second control board 201.

[0076] Among them, the car control port 1013 is respectively connected to the second control board 201 and the first control board 102 through cables to realize communication between the second control board 201 and the first control board 102. The communication method between the second control board 201 and the first control board 102 includes CAN communication method or MODBUS communication method, etc.

[0077] In some embodiments, the second control board 201 includes various buttons and a display screen for passengers and elevator maintenance personnel to operate the elevator. Among them, the buttons and the display screen on the second control board 201 are all connected to the car control port 1013 through cables.

[0078] In some embodiments, the functions of the second control board 201 include instruction input. Specifically, passengers can select the destination floor through the buttons on the second control board 201. These buttons usually include digital buttons (corresponding to each floor), door open / close buttons, emergency stop buttons, etc.

[0079] In some embodiments, the functions of the second control board 201 include information display. Specifically, a display screen is provided on the second control board 201 to display the elevator operation status, current position, target floor, direction indication, and other service information, such as fault prompts, etc.

[0080] In some embodiments, the functions of the second control board 201 include emergency control. Specifically, the second control board 201 is provided with an emergency alarm button and an intercom device so that passengers can contact the outside for help in case of an emergency.

[0081] In some embodiments, the functions of the second control board 201 include safety control. The second control board 201 usually integrates safety-related control logics, such as overload warning, operation status monitoring, etc., to ensure the safe operation of the elevator. It can be understood that based on different application scenarios, corresponding functions can be configured for the second control board 201, not limited to the functions listed in the embodiments of the present application.

[0082] In this embodiment, the terminal board 101 includes a door system signal port 1014, and the car 200 further includes a car door 202.

[0083] Among them, the door system signal port 1014 is respectively connected to a second sensor 2021 provided on the car door 202, a third sensor 401 provided on the door machine 400, and the first control board 102 through cables. The second sensor 2021 includes various sensors provided on the car door 202, and the third sensor 401 includes various sensors provided on the door machine 400.

[0084] In some embodiments, the first control board 102 receives the signals output by the second sensor 2021. Among them, the signals output by the second sensor 2021 at least include a light curtain signal, a door open in-place signal, and a door close in-place signal. Among them, a light curtain is a device that uses infrared technology to detect whether there are obstacles in the elevator door area. It is usually installed on both sides of the elevator door and consists of one or more groups of infrared transmitters and receivers. When the car door 202 is closing, if a passenger or an object enters the detection area of the light curtain and any beam of infrared light is blocked, the light curtain will immediately output a signal. In response to this signal, the door machine stops the closing action and reverses the door to open to ensure the safety of passengers or objects. Until the obstacle is removed and the light curtain signal returns to normal, the car door 202 will attempt to close again. The door open in-place signal and the door close in-place signal are important feedback signals used in the elevator system to monitor the movement state of the car door 202. They ensure that the car door 202 can be accurately opened or closed completely at a predetermined position, ensuring the safety of passengers and the normal operation of the elevator.

[0085] The first control board 102 receives the signals output by the third sensor 401. Among them, the signals output by the third sensor 401 at least include a door machine temperature detection signal. At this time, the sensor usually uses a temperature sensor (such as a thermocouple, a thermal resistor, or an infrared sensor, etc.). The door machine temperature detection signal is a signal used to monitor the temperature state of the door machine and related components to prevent the motor system from malfunctioning due to overheating when the door machine runs for a long time or under excessive load.

[0086] It can be understood that based on different application scenarios, corresponding sensors can be configured on the car door 202 and the door machine 400, rather than being limited to the sensors listed in the embodiments of the present application.

[0087] In this embodiment, the terminal board 101 includes an indication signal port 1015, and the arrival bell 107 includes a voice device 1071.

[0088] Among them, the indication signal port 1015 is respectively connected to the voice device 1071 and the first control board 102 through cables. Specifically, the first control board 102 controls the voice device 1071 through the indication signal port 1015 to send a voice message to notify passengers that the elevator is about to dock.

[0089] In some embodiments, the indication signal port 1015 is also connected to an audible and visual alarm device inside the car 200 through a cable to issue a warning signal to the people inside and outside the car 200 in case of an emergency. For example, the audible and visual alarm device can simultaneously emit a strong sound and a flashing light to give a warning in case of an emergency.

[0090] In this embodiment, the terminal board 101 includes an auxiliary equipment port 1016.

[0091] Among them, the auxiliary device port 1016 is respectively connected to the lighting lamp 106 and the first control board 102 through cables. Specifically, the first control board 102 controls the lighting lamp 106 through the auxiliary device port 1016.

[0092] In an embodiment, the auxiliary device port 1016 is also connected to the fan in the car through a cable. Specifically, the first control board 102 controls the fan to run or stop running through the auxiliary device port 1016.

[0093] In this embodiment, the terminal board 101 includes an emergency and communication port 1017, and the power supply module 105 further includes a battery 1051.

[0094] Among them, the emergency and communication port 1017 is respectively connected to the power supply module 105, the arrival bell 107 and the intercom 108. Specifically, the power supply module 105 outputs a power supply through the emergency and communication port 1017 to supply power to the arrival bell 107 and the intercom 108, and the battery 1051 outputs an emergency power supply through the emergency and communication port 1017 to provide necessary power supply for the elevator system in case of power failure or fault of the commercial power, so as to ensure that the elevator system can complete specific safety operations.

[0095] It should be noted that, as Figure 5 shown, the hardware structure of the terminal board 101 is only an example, and moreover, the terminal board 101 may have more or fewer components than those shown in the figure, two or more components may be combined, or different component configurations may be adopted.

[0096] For example, in some embodiments, as Figure 8 shown, the terminal board 101 further includes a safety circuit port 1018.

[0097] Among them, the safety circuit port 1018 is respectively connected to the safety clamp 203 and the first control board 102 in the car 200 through cables. The function of the safety clamp 203 is to emergently stop the car 200 and securely clamp it on the guide rail in case of emergencies such as elevator overspeed, out of control or suspension wire rope breakage, so as to prevent the car 200 from falling or moving out of control and protect the safety of passengers.

[0098] In some embodiments, the safety circuit port 1018 is also connected to various safety switches in the elevator system 1000 through cables, such as the safety clamp 203, limit switch, front car door contact, rear car door contact, etc. in the above embodiments.

[0099] Among them, the limit switches are installed at the upper and lower ends of the hoistway 300. When the elevator continues to run beyond the normal stroke range due to the failure of other protection devices (such as limit switches and deceleration switches), the limit switches will be triggered. It forces the elevator system to stop urgently by cutting off the control circuit or safety loop of the elevator system, preventing the car 200 from hitting the top or bottom of the hoistway, and protecting passengers and equipment from serious damage.

[0100] The front car door contact and the rear car door contact can ensure that the elevator system can start and run normally only when the car door is closed and locked. When the car door is fully closed, the contacts are closed to form a circuit. If any pair of contacts is not correctly closed (i.e., the door is not fully closed or locked), the elevator system will not be able to start or will stop immediately during operation to prevent passengers or objects from being pinched by the car door.

[0101] In this embodiment, the terminal board 101 further includes an LED lamp port 1019. The LED lamp port 1019 is respectively connected to the first control board 102 and the LED lamp in the elevator system 1000 through cables. The LED lamp in the elevator system 1000 includes an LED lamp for indicating the state (closed or open) of the relay in the elevator system 1000, etc.

[0102] In this embodiment, the terminal board 101 further includes a relay port 1020. The relay port 1020 is respectively connected to the first control board 102 and the relay in the elevator system 1000 through cables. The relays in the elevator system 1000 include a relay for controlling the output of the audible and visual alarm device, a relay for controlling the output of the second sensor 2021, a relay for controlling the fan in the car 200, and a relay for controlling the output of the arrival bell, etc.

[0103] In this embodiment, the terminal board 101 further includes an auxiliary cable port 1021. The auxiliary cable port 1021 is respectively connected to the car 200 and the machine room 500 through cables to realize communication, power supply, and signal transmission between the car 200 and the machine room 500.

[0104] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

[0105] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order. Those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A car top box, characterized in that, Comprising: A terminal board, which is connected to an external device, wherein the external device includes a hoistway, a car, a door machine and a machine room; A first control board, which is connected to the terminal board and is used to realize communication and signal transmission with the external device through the terminal board; A switch module, connected to the terminal board, for switching the state of the external device to a manual operation state or an automatic operation state; A button module, connected to the terminal board, for controlling the manual operation of the external device when the state of the external device is the manual operation state; A power module, connected to the terminal board, for inputting an AC power supply and performing a power conversion function to output a plurality of different power supplies based on the AC power supply to supply power to at least the first control board and the external device.

2. The car top box according to claim 1, characterized in that, The terminal board includes a maintenance control port, the button module includes an operation button, an up button, a down button and an emergency stop button, the operation button includes a first normally open switch and a second normally open switch, the up button includes a third normally open switch and a fourth normally open switch, the down button includes a fifth normally open switch and a sixth normally open switch, and the switch module includes a first normally closed switch, a second normally closed switch and a seventh normally open switch; The maintenance control port is respectively connected to the operation button, the up button, the down button, the emergency stop button, the switch module and the first control board; Wherein, the first end of the first normally open switch is respectively connected to the first voltage signal and the first end of the first normally closed switch, the second end of the first normally open switch is respectively connected to the first end of the third normally open switch and the first end of the fifth normally open switch, and the second ends of the third normally open switch, the fifth normally open switch and the first normally closed switch are all connected to the first control board; A second combination is formed by connecting in series a first combination formed by connecting in parallel the fourth normally open switch and the sixth normally open switch with the second normally open switch, the second normally closed switch is connected in parallel with the second combination, a second voltage signal is input to the end of the second normally closed switch connected to the second normally open switch, the end of the second normally closed switch connected to the first combination is connected to the first end of the emergency stop button, and the second end of the emergency stop button is connected to the first control board; The seventh normally open switch is connected between two ports in the machine room. Wherein, when the external device is in the manual operation state, the seventh normally open switch is closed to short-circuit the two ports in the machine room and enable the machine room to determine that the functions realized by the car top box have priority.

3. The car top box according to claim 1, characterized in that, The terminal board includes a hoistway signal port; The hoistway signal port is respectively connected to a first sensor arranged in the hoistway and the first control board; The first control board is used to receive the signal output by the first sensor, wherein the signal output by the first sensor includes a door area signal and a leveling signal.

4. The car top box according to claim 1, characterized in that, The terminal board includes a car control port, and the car includes a second control board; The car control ports are respectively connected to the second control board and the first control board to enable communication between the first control board and the second control board.

5. The car top box according to claim 1, characterized in that, The terminal board includes door system signal ports, and the car further includes a car door. The door system signal ports are respectively connected to a second sensor provided on the car door, a third sensor provided on the door machine, and the first control board. Wherein, the first control board is configured to receive signals output by the second sensor and the third sensor. The signals output by the second sensor at least include a light curtain signal, a door open in-place signal, and a door close in-place signal. The signals output by the third sensor at least include a door machine temperature detection signal.

6. The car top box according to any one of claims 1 to 5, characterized in that, The car top box includes a lighting lamp, a station bell, and an intercom connected to the terminal board. The lighting lamp is configured to perform a lighting function when the state of the external device is the manual operation state. The station bell is configured to output an indication signal based on the car reaching a preset position when the state of the external device is the automatic operation state. The intercom is configured to receive voice information or output voice information.

7. The car top box according to claim 6, characterized in that, The terminal board includes an indication signal port, and the station bell includes a voice device. The indication signal port is respectively connected to the voice device and the first control board. Wherein, the first control board controls the voice device through the indication signal port.

8. The car top box according to claim 6, characterized in that, The terminal board includes auxiliary equipment ports. The auxiliary equipment ports are respectively connected to the lighting lamp and the first control board. Wherein, the first control board controls the lighting lamp through the auxiliary equipment port.

9. The car top box according to claim 6, characterized in that, The terminal board includes an emergency and communication port, and the power supply module further includes a battery. The emergency and communication port is respectively connected to the power supply module, the station bell, and the intercom. Wherein, the power supply module outputs the power supply through the emergency and communication port to supply power to the station bell and the intercom, and the battery outputs an emergency power supply through the emergency and communication port.

10. The car top box according to claim 6, characterized in that, The terminal board further includes a safety circuit port, an LED lamp port, a relay port, and an auxiliary cable port. The safety circuit port is respectively connected to a safety clamp in the car and the first control board. The LED lamp port is respectively connected to the first control board and an LED lamp. The relay port is respectively connected to the first control board and a relay. The auxiliary cable port is respectively connected to the car and the machine room to enable communication, power supply, and signal transmission between the car and the machine room.

11. An elevator system, characterized in that, It includes a hoistway, a car, a door machine, a machine room, and a car top box according to any one of claims 1-10. The car top box is respectively connected to the hoistway, the car, the door machine, and the machine room.

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