Elevator board card
By coordinating the design of the main control board and interface board, and adding power and communication modules, the problem of elevator boards being incompatible with integrated and split control cabinets was solved, achieving efficient compatibility and stable operation of the elevator control system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-07
AI Technical Summary
Existing elevator control boards cannot be compatible with both integrated and split control cabinets, resulting in insufficient compatibility and versatility.
Design an elevator board with a separate main control board and interface board architecture. Add a power module, communication module and storage module, and connect them through ribbon cables to achieve unified elevator control, communication and power management. It is suitable for integrated and split control cabinets.
The compatibility and functionality of the board have been improved, enabling it to be used in both integrated and split control cabinets, thus enhancing the system's versatility and adaptability.
Smart Images
Figure CN224091406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of board design for elevator control cabinets, and particularly to an elevator board. Background Technology
[0002] With the increasing demand for home elevators in modern residences, their design and control technologies are constantly advancing. As the core of the home elevator control system, the control cabinet's design directly affects the elevator's operating efficiency, ease of installation, and maintenance costs. Currently, home elevator control cabinets on the market are mainly divided into two types: integrated and split-type.
[0003] Conventional integrated control cabinets combine key electronic components such as power boards, frequency converters, and main control systems into a single cabinet, while split-type control cabinets separate the power boards and frequency converters and house them individually. Due to significant differences in physical structure, interface design, and electrical characteristics between the two types of control cabinets, existing circuit boards cannot be simultaneously compatible with both integrated and split-type control cabinets. Utility Model Content
[0004] The purpose of this utility model is to provide an elevator control board that is compatible with both integrated cabinets and split-type elevator control cabinets.
[0005] To address the aforementioned technical problems, this utility model provides an elevator control board, applicable to elevator control cabinets. The elevator control board includes a main control board and an interface board connected to the main control board. The main control board includes at least an MCU, and a communication module, a power module, a storage module, and an I / O module connected to the MCU. The communication module communicates with external devices. The power module connects to an external power source to supply power to the elevator control board. The storage module stores the operating parameters and fault records of the elevator control system. The I / O module communicates with the external devices based on control commands generated by the MCU to control and monitor the elevator's status. The MCU inputs control commands to the communication module and the interface board based on control signals from the external devices. The interface board includes at least a brake interface, a brake release interface, and a follow-up interface. The brake interface and brake release interface connect to the brake and brake release power supplies of the elevator control cabinet to provide power. The follow-up interface connects to the external devices and receives control signals from the external devices and transmits control commands generated by the MCU.
[0006] Compared to existing technologies, this invention achieves unified elevator control, communication, and power management through the collaboration of the main control board and interface board. Specifically, the main control board incorporates a power module, allowing it to directly utilize an external power source, ensuring stable operation even in the absence of a power supply in a split-type cabinet. A new communication module is added for transmitting control signals in split-type cabinets, ensuring efficient and stable signal transmission. The interface board and main control board also feature a storage module for storing elevator control system operating parameters and fault records, and an I / O module for communicating with external devices based on control commands generated by the MCU, enabling elevator control and status monitoring. These improvements optimize the board's compatibility and functionality, making it suitable for both integrated and split-type cabinets, thus enhancing its versatility.
[0007] In addition, the external devices include a drive device, a communication device, and a monitoring device; the communication module includes a CAN communication component, an RS485 communication component, and a 232 communication component connected to the MCU; the CAN communication component is connected to the drive device and the communication device for communication, the RS485 communication component is connected to the monitoring device for communication, and the 232 communication component is used to connect to external devices to realize the functions of operator and programming.
[0008] In addition, the drive device includes a drive unit, the communication device includes a car and an external call unit, and the monitoring device includes a monitoring unit and an ARD (Automatic Radio Unit). The CAN communication component includes a CAN0 interface, a CAN1 interface, and a CAN2 interface connected to the MCU. The CAN0 interface and the CAN1 interface are respectively connected to the car and the external call unit for elevator communication, and the CAN2 interface is connected to the drive unit to obtain control signals and forward them to the MCU. The RS485 communication component includes an RS485-0 interface and an RS485-1 interface connected to the monitoring unit and the ARD (Automatic Radio Unit) for transmitting elevator operating status data.
[0009] In addition, the elevator board also includes a system debugging module connected to the MCU; wherein, the system debugging module is used to send the generated time information and the debugging and maintenance information of the elevator control system to the MCU.
[0010] In addition, the system debugging module includes at least an RTC and a debug module connected to the MCU, and a capacitor connected to the RTC. The RTC is used to record the elevator's running time; the debug module is used for the development, testing, and maintenance of the elevator control system's control program; and the capacitor is used to supply power to the RTC when the power is off.
[0011] In addition, the IO module includes indicator lights and input / output units. The indicator lights are used to display the working status of the elevator board and are connected to the MCU of the main control board. The input / output units are connected to the external devices and are used to receive and respond to the control signals of the external devices.
[0012] In addition, the power supply module includes at least a voltage conversion unit connected to the MCU, an inverter control interface, and a power failure detection unit; wherein, the voltage conversion unit is also connected to an external power supply to convert the input voltage into the operating voltage of the main control board; the inverter control interface is also connected to an external inverter to convert the voltage output by the external inverter into the operating voltage of the main control board; and the power failure detection unit is used to monitor the voltage status of the power supply of the main control board.
[0013] In addition, the interface board also includes a function control module and a protection module. The function control module is connected to the MCU and is used to receive elevator function control information sent by the external device and forward it to the MCU. The protection module is used to control the on / off state and provide overload protection for the electronic and electrical equipment of the elevator control cabinet.
[0014] In addition, the functional control module includes at least an intercom interface, an emergency operation interface, a bypass interface, a safety link port, a fan interface, a photo interface, an operation box interface, and an external interface. Each interface connects to and interacts with the external device, and forwards the control information of the external device to the main control board MCU.
[0015] In addition, the protection module includes at least relays, switches, and fuses connected to the electronic and electrical equipment of the elevator control cabinet, for controlling the on / off control and overload protection of the electronic and electrical equipment. Attached Figure Description
[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0017] Figure 1 This is a structural schematic diagram of an elevator board according to an embodiment of the present utility model. Detailed Implementation
[0018] As the background technology shows, conventional integrated control cabinets integrate key electronic components such as power boards, frequency converters, and main control systems into a single cabinet, while split-type control cabinets separate the power boards and frequency converters and house them individually. Due to the significant differences between the two types of control cabinets in terms of physical structure, interface design, and electrical characteristics, existing circuit boards cannot be simultaneously compatible with both integrated and split-type control cabinets.
[0019] This invention achieves unified elevator control, communication, and power management through the collaboration of the main control board and the interface board. Specifically, the main control board incorporates a power module, allowing it to directly utilize an external power source, ensuring stable operation even in the absence of a power supply in a split-type cabinet. A new communication module is added for transmitting control signals in split-type cabinets, ensuring efficient and stable signal transmission. The interface board and main control board also feature a storage module for storing elevator control system operating parameters and fault records, and an I / O module for communicating with external devices based on control commands generated by the MCU, enabling elevator control and status monitoring. These improvements optimize the board's compatibility and functionality, making it suitable for both integrated and split-type cabinets, thus enhancing its versatility.
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0024] This utility model provides an elevator control board, suitable for home elevator control cabinets. Figure 1 A preferred embodiment of the elevator board provided by this utility model is shown.
[0025] Please see Figure 1 , Figure 1 This is a schematic diagram of the elevator board provided by the present invention. In this embodiment, the elevator board includes a main control board and an interface board connected to the main control board. The main control board includes at least an MCU (Microcontroller Unit), and a communication module, a power module, a storage module, and an I / O module connected to the MCU. The communication module is used to communicate with external devices; the power module is used to connect to an external power source to supply power to the elevator board; the storage module (i.e., ...) Figure 1 The "FRAM" in the document is used to store the operating parameters and fault records of the elevator control system; the IO module is used to communicate with the external device according to the control instructions generated by the MCU to control and monitor the status of the elevator; the MCU is used to input control instructions to the communication module and the interface board according to the control signals of the external device; the interface board includes at least a brake interface, a brake release interface and a follow-up interface, wherein the brake interface and the brake release interface are connected to the brake and brake release power supplies of the elevator control cabinet to provide power supply; the follow-up interface is connected to the external device and is used to receive the control signals of the external device and transmit the control instructions generated by the MCU.
[0026] This utility model's elevator board adopts a dual-board architecture design, separating the main control board and the interface board, and connecting them via ribbon cables. This design decouples the control logic from the physical interface, allowing the main control board to handle core control and the interface board to handle functional expansion. Furthermore, by integrating functions originally scattered across different cabinets (such as power management, communication, and storage) into the board, the system complexity is significantly reduced.
[0027] Specifically, when the control cabinet is integrated, both the circuit board and the frequency converter are installed inside the cabinet. The transmission and control of signals between the circuit board and the frequency converter, encoder, and brake enable signal are all hard-wired through the interface connected to the frequency converter. However, in the case of a split control cabinet, the frequency converter is separated, making signal transmission and control via the aforementioned interface impossible. Therefore, this design adds a communication module to the circuit board to transmit all drive control-related signals (including encoder, brake enable, etc.) through this module, ensuring the normal operation of the split control cabinet. Regarding the brake power supply connection, when the control cabinet is integrated, both the brake power supply board and the circuit board are located inside the cabinet. The brake power supply and the release power supply (i.e.,...) Figure 1 The "split-type brake release power supply" in the original design is hard-connected via the brake interface. However, in a split-type control cabinet, the power supply board is separated and placed together with the main unit, requiring additional cables for hard-connection of the brake and brake release power supplies. To ensure compatibility with split-type control cabinets, this design adds a separate split-type brake and brake release power supply interface to the board's interface panel. When the control cabinet is split-type, simply connecting this interface enables the power supply function, while other electrical interfaces remain consistent with the integrated control cabinet. Regarding power supply, in an integrated control cabinet, the board's power supply comes directly from the frequency converter, as the frequency converter is installed below the board and powered via a hard-connection interface. In a split-type control cabinet, the frequency converter is separated and cannot directly power the board. To address this issue, this design adds an independent power module to the board's hardware design, allowing direct power supply from an external switching power supply.
[0028] Through the above design, the elevator board of this utility model not only achieves a high degree of functional integration and modularity, but also, through flexible interface design and power supply scheme, is compatible with integrated and split control cabinets, greatly improving the system's versatility and adaptability.
[0029] Thus, this invention adds a power module to the main control board's hardware design, allowing it to directly utilize an external power source to power itself, ensuring stable operation of the board even when there is no power supply in the split-type cabinet. A new communication module is added for transmitting control signals when used in split-type cabinets, ensuring efficient and stable signal transmission. A storage module is added to the interface board and main control board to store the elevator control system's operating parameters and fault records, and an I / O module is added to communicate with external devices based on control commands generated by the MCU for elevator control and status monitoring. These improvements optimize the board's compatibility and functionality, enabling it to be used in both integrated and split-type cabinets, thus improving its versatility.
[0030] In some embodiments, the external device includes a driver, a communication device, and a monitoring device; the communication module includes a CAN communication component, an RS485 communication component, and a 232 communication component connected to the MCU; the CAN communication component is connected to the driver and the communication device for communication, the RS485 communication component is connected to the monitoring device for communication, and the 232 communication component is used to connect to external devices to realize the functions of operator and programming.
[0031] The external equipment in an elevator control system is mainly divided into three categories: drive equipment, communication equipment, and monitoring equipment. Among these, drive equipment (such as...) Figure 1 The "drive" in the text is responsible for the actual drive of the elevator motor; communication equipment (such as...) Figure 1 The "car communication" and "external call communication" mentioned above are used for elevator interior communication and human-machine interaction; monitoring equipment (such as...) Figure 1 The “ARD” and “IoT / Community Monitoring” mentioned above are used for remote monitoring and data recording of elevator operation status.
[0032] The communication module achieves efficient connection with external devices through three standardized protocols. The CAN (Controller Area Network) bus, with its high real-time performance, strong anti-interference capabilities, and multi-master communication, is ideal for real-time data exchange in elevator control systems. The RS485 protocol supports long-distance (up to 1200 meters) multi-node communication and has strong anti-interference capabilities, making it suitable for remote transmission of monitoring data. The traditional S232 serial communication interface is suitable for short-distance, low-speed point-to-point communication and is commonly used for equipment debugging and programming. This combination of protocols allows the elevator board to be compatible with different types of external devices and adapt to the layout differences between integrated and split control cabinets.
[0033] Specifically, when the elevator control cabinet is a separate unit, the CAN protocol effectively solves the signal transmission problem caused by the dispersed components, ensuring the stability and reliability of long-distance communication. When the elevator control cabinet is integrated, the integrated design significantly reduces wiring complexity and improves the overall system performance. Thus, through the collaborative efforts of CAN, RS485, and S232 protocols, this elevator board achieves comprehensive support for drive control, car interaction, remote monitoring, and local debugging, balancing real-time performance, interference resistance, and ease of maintenance.
[0034] In some embodiments, the drive device includes a drive, the communication device includes a car and an external call button, and the monitoring device includes a monitoring unit and an ARD (Automatic Radio Unit); the CAN communication component includes a CAN0 interface, a CAN1 interface, and a CAN2 interface connected to the MCU, wherein the CAN0 interface and the CAN1 interface are respectively connected to the car and the external call button for elevator communication, and the CAN2 interface is connected to the drive to obtain control signals and forward them to the MCU; the RS485 communication component includes an RS485-0 interface and an RS485-1 interface connected to the monitoring unit and the ARD (Automatic Radio Unit) for transmitting elevator operating status data.
[0035] Specifically, this utility model's elevator board, through its highly integrated design and optimized communication architecture, achieves efficient collaborative work with drive equipment, communication equipment, and monitoring equipment. Regarding the drive equipment, the core component is the MCU (Microcontroller Unit), responsible for the overall control of elevator movement, ensuring the smoothness and accuracy of elevator operation. The communication equipment encompasses car communication and external call communication, interacting with the MCU via CAN communication. Car communication is implemented through the car top communication controller in the car top box, which is installed on the top of the elevator car and is responsible for collecting commands from inside the car, such as floor selection and door opening / closing operations, and executing the corresponding commands. External call communication is achieved through call buttons outside the elevator, enabling users to initiate elevator ride requests. The monitoring equipment includes a local monitoring terminal and an automatic rescue device (ARD). The local monitoring terminal can display the elevator's operating status in real time, such as the current floor and load information, which is convenient for on-site maintenance and monitoring. The ARD is used to monitor the elevator's operating status and, when it detects a power supply failure or interruption, it automatically uses its built-in battery to move the elevator car to the nearest leveling position and open the elevator door to ensure that passengers can evacuate safely.
[0036] In terms of communication interface design, this utility model adopts multiple standardized interfaces to meet the connection requirements of different devices. The CAN bus interface includes CAN0, CAN1, and CAN2. The CAN0 interface connects to the car communication, used to transmit commands and status feedback within the car; the CAN1 interface connects to external call communication, receiving elevator requests from external users; and the CAN2 interface connects to the drive unit, transmitting motor control commands and receiving feedback signals from the drive unit. The RS485 interface includes RS485-0 and RS485-1. The RS485-0 interface connects to local monitoring equipment, displaying elevator operating parameters and fault codes in real time; the RS485-1 interface connects to the ARD elevator automatic rescue operation device, enabling monitoring of the elevator power supply. In the event of a power supply failure or interruption, it provides emergency power to the elevator control system through a built-in battery and inverter.
[0037] This communication architecture allows the elevator control board to seamlessly adapt to both integrated control cabinets (centralized layout) and distributed control cabinets (distributed layout) without requiring modifications to hardware interfaces. This design not only enhances system compatibility and scalability but also provides a solid hardware foundation for remote elevator monitoring and fault diagnosis. This new elevator control board, through its modular design and standardized communication interfaces, achieves efficient collaboration between the drive, communication, and monitoring systems. It represents a key innovation in the modularization and intelligentization of elevator control cabinets, meeting the needs of different application scenarios while reducing system complexity and improving maintenance convenience.
[0038] In some embodiments, the elevator board further includes a system debugging module connected to the MCU; wherein the system debugging module is used to send the generated time information and the debugging and maintenance information of the elevator control system to the MCU.
[0039] Specifically, in some embodiments, the system debugging module includes at least an RTC and a debug module connected to the MCU, and a capacitor connected to the RTC. The RTC is used to record the elevator's running time; the debug module is used for the development, testing, and maintenance of the elevator control system's control program; and the capacitor is used to supply power to the RTC when the power is off.
[0040] The elevator board's system debugging module, connected to the MCU, integrates an RTC (Real-Time Clock) and a debug interface, along with a capacitor connected to the RTC. This allows it to generate precise time information and transmit elevator control system debugging and maintenance data to the MCU. The RTC module records the elevator's cumulative running time and fault timestamps, providing crucial time-dimensional data for maintenance cycle management and fault reproduction analysis. The debug interface supports control program development and testing, online debugging, and firmware updates, enabling remote or on-site system diagnostics and program repair via standardized protocols. This integrated design significantly improves elevator maintenance efficiency: the timestamp function helps quickly pinpoint the context of a fault, the debug interface simplifies troubleshooting and supports remote maintenance, and combined with historical data from the storage module, it enables root cause analysis of faults; the capacitor (i.e., Figure 1 The "Battery" in the elevator is fully charged when the elevator is running normally. When the elevator is powered off, the capacitor supplies power to the RTC in the main board, enabling the RTC to work normally.
[0041] Furthermore, integrated time management and debugging functions reduce reliance on external devices, a real-time clock synchronization mechanism ensures data accuracy, and standardized interface design enhances the compatibility of development tools. This not only provides the hardware foundation for elevator IoT and preventative maintenance but also improves the system's maintainability, scalability, and testability through modular design. Modular design allows elevators to be flexibly combined according to different needs during the design and manufacturing process, improving product adaptability and supporting customized services. Users can select appropriate module combinations based on their own usage scenarios to achieve personalized needs. This design also facilitates adaptive adjustments based on different regional climates and geographical conditions, expanding the application range of elevators.
[0042] In some embodiments, the I / O module on the elevator board includes an indicator light and an input / output unit. The indicator light is used to display the working status of the elevator board and is connected to the MCU of the main control board. The input / output unit is connected to the external device and is used to receive and respond to the control signals of the external device.
[0043] The elevator control board's I / O module, consisting of indicator lights and input / output units, is the core interface for human-machine interaction and equipment control in the elevator control system. The indicator lights connect directly to the MCU on the main control board, using different colors and flashing frequencies to provide real-time feedback on the board's operating status, such as running, standby, or fault. This intuitive visual display facilitates quick problem identification by maintenance personnel. The input / output units act as a bridge between the board and external devices (such as buttons, sensors, and actuators). On one hand, they receive control signals from external devices (such as floor selection and emergency braking commands) and transmit them to the MCU for logic processing. On the other hand, they transmit control commands generated by the MCU (such as motor start / stop and door open / close signals) to external devices for execution, thereby achieving closed-loop control of the elevator's operation.
[0044] In terms of specific structure, input / output units typically include multiple types of interfaces to meet the connection needs of different devices. For example, input ports may support various signal types, such as TTL level (Transistor-Transistor Logic) and relay signals, for connecting devices such as floor selection buttons and overload sensors. Output ports may include relay outputs, PWM (Pulse Width Modulation) outputs, etc., for controlling elevator door opening and closing, motor start and stop, and other operations. In addition, to improve system flexibility and scalability, I / O modules may also be equipped with auxiliary input / output interfaces for connecting additional devices or sensors, such as human body detection sensors and gyroscopes.
[0045] This design not only enables a clear presentation of system status and efficient response to external commands, but also reduces reliance on external devices and improves system integration and reliability through a modular design approach. Simultaneously, the standardized interface design enhances compatibility with other devices, providing a hardware foundation for intelligent elevator management and maintenance.
[0046] In some embodiments, the power module of the elevator board of this invention includes at least the voltage conversion unit (i.e., the MCU is connected to) Figure 1 The "power conversion module 24V to 5V, 5V to 3.3V", and the inverter control interface (i.e. Figure 1 The system includes a "connection interface for frequency converters" and a power failure detection unit. The voltage conversion unit is also connected to an external power supply to convert the input voltage into the operating voltage of the main control board. The frequency converter control interface is also connected to an external frequency converter to convert the voltage output by the external frequency converter into the operating voltage of the main control board. The power failure detection unit monitors the voltage status of the main control board's power supply. The voltage conversion unit is also connected to a backup power supply in the external power supply. This backup power supply provides power to the main control board in case of an unexpected power outage. The backup power supply is supplied by an ARD module. When the ARD module detects a fault or interruption in the elevator power supply, it directly outputs 24V, which is then converted to 5V by the voltage conversion unit, and finally to 3.3V by the 5V-to-3.3V module to power the functional chips on the main board.
[0047] Specifically, in elevator control systems, the stability and reliability of the power supply module are crucial, especially in different application scenarios of integrated and split control cabinets. For integrated control cabinets, both the mainboard and the frequency converter are installed inside the cabinet, with the mainboard's 5V power supply directly from the frequency converter via a hard connection. However, in split control cabinets, the frequency converter is separate from the mainboard and cannot be directly powered. To address this issue, the elevator board's power supply module has been optimized, integrating a voltage conversion unit, a frequency converter control interface, and a power failure detection unit to construct a multi-layered power supply protection system.
[0048] This invention directly connects to an external power source (such as DC24V or DC12V) via a voltage conversion unit. The power conversion unit transforms the 24V or 12V supplied by the external power source into 5V, and then into 3.3V; most chips on the main control board are powered by 5V or 3.3V. Simultaneously, through the inverter control interface, the voltage output from the inverter (such as the feedback energy after driving the motor) undergoes secondary conversion to power the system, achieving energy reuse. This design not only improves energy efficiency but also reduces dependence on external power sources. Furthermore, a power failure detection unit monitors the power supply voltage status in real time. When an external power interruption is detected, it immediately triggers a seamless switchover of the external backup power supply (power output from the ARD module), ensuring that the main control board continues to be powered during unexpected power outages, maintaining critical functions such as fault record storage and emergency braking control.
[0049] In terms of hardware design, an independent power conversion module has been added to the motherboard to convert external 24V power to 5V and 5V to 3.3V to support the motherboard power supply of the split control cabinet. Simultaneously, an integrated power failure detection unit ensures seamless switching during power outages. During the testing and verification phase, the power module demonstrated good stability and anti-interference capabilities under different power grid conditions, ensuring the maintenance of critical functions during power interruptions. Furthermore, by optimizing the PCB layout, reducing inductance and electromagnetic interference, and adopting a high-efficiency switching power supply topology, conversion efficiency has been further improved. Thus, through this optimized design, the elevator board's power module not only solves the problem of the lack of a built-in power supply in split control cabinets but also enhances the system's resistance to power fluctuations and reliability, making it particularly suitable for home elevator scenarios with extremely high requirements for power supply continuity.
[0050] The interface board of the elevator control panel of this utility model further includes a function control module and a protection module. The function control module is connected to the MCU and is used to receive elevator function control information sent by the external device and forward it to the MCU. The protection module is used to control the on / off state and provide overload protection for the electronic and electrical equipment of the elevator control cabinet.
[0051] The elevator board's interface board significantly enhances the system's functional scalability and safety by integrating a function control module and a protection module. The function control module acts as the interaction hub between external devices and the MCU. Through pre-defined standardized interfaces (such as intercom, emergency operation, bypass, and safety chain interfaces), it receives elevator function control information from external devices, including emergency braking and maintenance mode commands, and forwards them to the MCU on the main control board for logic processing. This allows the elevator to flexibly switch operating modes and expand its functions, such as supporting emergency operation and remote monitoring, thus better adapting to different application scenarios.
[0052] Meanwhile, the protection module constructs an electrical safety barrier using components such as relays, switches, and fuses. It can monitor the operating status of electronic and electrical equipment within the elevator control cabinet in real time. Upon detecting overload, short circuit, or abnormal voltage, it quickly executes on / off control, such as cutting off the faulty circuit and triggering the overload protection mechanism, thereby preventing equipment damage or escalation of the fault. This hardware-level protection effectively enhances system reliability, making it particularly suitable for home elevator environments with stringent safety requirements. Furthermore, the interface board design reserves expansion space for future functional upgrades, facilitating further functional expansion to meet more needs.
[0053] In some embodiments, the interface board further includes other interfaces: an intercom interface, an emergency operation interface, a bypass interface, a safety link port, a fan interface, a photo interface, an operation box interface, and an external interface. Each interface connects to and interacts with the external device, and forwards control information from the external device to the main control board MCU. The protection module includes at least relays, switches, and fuses connected to the electronic and electrical equipment of the elevator control cabinet, used for controlling the on / off control and overload protection of the electronic and electrical equipment.
[0054] The elevator board's interface board connects and interacts with external devices through a variety of carefully designed interfaces, forwarding control information from these devices to the MCU on the main control board. The interface board includes an intercom interface, emergency operation interface, bypass interface, safety link port, fan interface, photo interface, and operator box interface. The intercom interface connects to the in-car intercom device, enabling real-time communication between passengers and the outside world; the emergency operation interface connects to an external manual operating device, allowing maintenance personnel to move the car at low speed in case of a malfunction; the bypass interface is used to temporarily bypass some safety checks during maintenance; the safety link port connects the elevator safety devices in series to form a loop, which can stop the elevator when triggered; the traveling cable interface connects to the traveling cable of the car, transmitting various signals from the elevator car, such as floor call signals, door operator control signals, and safety circuit signals, to the main control board for normal elevator operation and control; the fan interface controls the fans in the car or control cabinet, adjusting ventilation and heat dissipation; the operator box interface and external interface connect to a handheld operator box, allowing maintenance personnel to debug parameters or perform advanced operations on-site. This design not only enhances the elevator's functional expandability by enabling plug-and-play functionality across various modules through standardized interfaces to adapt to different scenario requirements, but also improves safety, with the safety connection port and protection module working together to ensure operational safety. Simultaneously, it optimizes the user experience, simplifies maintenance processes, reduces downtime, and enhances compatibility through reserved interfaces, adapting to future technological developments and extending the product lifecycle.
[0055] The protection module connects directly to the electronic and electrical equipment within the elevator control cabinet via basic electrical components such as relays, switches, and fuses, constructing a multi-layered safety protection system. Relays, as core control components, can remotely control the circuit's on / off state via MCU commands or external signals, such as cutting off faulty circuits when an anomaly is detected. Manual or automatic switches provide local operation functions, allowing maintenance personnel to directly intervene in the circuit status. Fuses, as physical protective barriers, quickly melt when the current exceeds the rated value, isolating fault points to prevent equipment damage or fire risks caused by overload or short circuits. These three components work together to achieve real-time protection for critical equipment such as elevator drive motors and sensors, and ensure independent execution of safe actions even when control signals fail through hardware-level response, significantly improving the reliability and fault tolerance of the elevator control system. Simultaneously, to ensure greater stability of the compatible board system, the protection of the communication module is particularly important; its protective devices, such as TVS diodes and fuses, must be placed near the interface. Some heat-generating components require derating design and sufficient heat dissipation space.
[0056] Furthermore, the board design fully considers functional implementation, performance requirements, and the needs of future maintenance and upgrades. Input / output, power conversion, and communication modules on the main control board can all be modularized, with similar modules grouped together in the same area of the board. Interfaces on the interface board are divided into internal and external areas, and then further functionally based on their interface functions. Modules requiring manual operation, such as fuses and switches, are placed in easily accessible central locations. This modular design not only improves the system's maintainability and scalability but also facilitates future technology upgrades and functional expansions.
[0057] This invention achieves unified elevator control, communication, and power management through the collaboration of the main control board and the interface board. Specifically, the main control board incorporates a power module, allowing it to directly utilize an external power source, ensuring stable operation even in the absence of a power supply in a split-type cabinet. A new communication module is added for transmitting control signals in split-type cabinets, ensuring efficient and stable signal transmission. The interface board and main control board also feature a storage module for storing elevator control system operating parameters and fault records, and an I / O module for communicating with external devices based on control commands generated by the MCU, enabling elevator control and status monitoring. These improvements optimize the board's compatibility and functionality, making it suitable for both integrated and split-type cabinets, thus enhancing its versatility.
[0058] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. An elevator control board, suitable for home elevator control cabinets, characterized in that, The elevator board includes a main control board and an interface board connected to the main control board. The main control board includes at least an MCU and a communication module, a power module, a storage module, and an I / O module connected to the MCU. The communication module communicates with external devices. The power module connects to an external power source to supply power to the elevator board. The storage module stores the operating parameters and fault records of the elevator control system. The I / O module communicates with the external devices according to control commands generated by the MCU to control and monitor the elevator's status. The MCU inputs control commands to the communication module and the interface board based on control signals from the external devices. The interface board includes at least a brake interface, a brake release interface, and a follow-up interface. The brake interface and brake release interface are connected to the brake and brake release power supplies of the elevator control cabinet to provide power. The follow-up interface connects to the external devices and receives control signals from the external devices and transmits control commands generated by the MCU.
2. The elevator board according to claim 1, characterized in that, The external devices include a driver, a communication device, and a monitoring device; the communication module includes a CAN communication component, an RS485 communication component, and a 232 communication component connected to the MCU; the CAN communication component is connected to the driver and the communication device for communication, the RS485 communication component is connected to the monitoring device for communication, and the 232 communication component is used to connect to external devices to realize the functions of operator and programming.
3. The elevator board according to claim 2, characterized in that, The drive device includes a drive unit; the communication device includes car communication and external call communication; the monitoring device includes a monitoring unit and an ARD (Automatic Radio Unit); the CAN communication component includes a CAN0 interface, a CAN1 interface, and a CAN2 interface connected to the MCU, wherein the CAN0 interface and the CAN1 interface are respectively connected to the car communication and the external call communication for elevator communication; the CAN2 interface is connected to the drive unit to obtain control signals and forward them to the MCU; the RS485 communication component includes an RS485-0 interface and an RS485-1 interface connected to the monitoring unit and the ARD (Automatic Radio Unit) for transmitting elevator operating status data.
4. The elevator board according to claim 1, characterized in that, The elevator board also includes a system debugging module connected to the MCU; wherein the system debugging module is used to send the generated time information and the debugging and maintenance information of the elevator control system to the MCU.
5. The elevator board according to claim 4, characterized in that, The system debugging module includes at least an RTC and a debug module connected to the MCU, and a capacitor connected to the RTC. The RTC is used to record the elevator's running time; the debug module is used for the development, testing, and maintenance of the elevator control system's control program; and the capacitor is used to supply power to the RTC when the power is off.
6. The elevator board according to claim 1, characterized in that, The IO module includes indicator lights and input / output units. The indicator lights are used to display the working status of the elevator board and are connected to the MCU of the main control board. The input / output units are connected to the external devices and are used to receive and respond to the control signals of the external devices.
7. The elevator board according to claim 1, characterized in that, The power supply module includes at least a voltage conversion unit connected to the MCU, an inverter control interface, and a power failure detection unit; wherein, the voltage conversion unit is also connected to an external power supply to convert the input voltage into the operating voltage of the main control board; the inverter control interface is also connected to an external inverter to convert the voltage output by the external inverter into the operating voltage of the main control board; the power failure detection unit is used to monitor the voltage status of the power supply of the main control board.
8. The elevator board according to claim 1, characterized in that, The interface board also includes a function control module and a protection module. The function control module is connected to the MCU and is used to receive elevator function control information sent by the external device and forward it to the MCU. The protection module is used to control the on / off state and provide overload protection for the electronic and electrical equipment of the elevator control cabinet.
9. The elevator board according to claim 8, characterized in that, The functional control module includes at least an intercom interface, an emergency operation interface, a bypass interface, a safety link port, a fan interface, a photo interface, an operation box interface, and an external interface. Each interface connects to and interacts with the external device, and forwards the control information of the external device to the main control board MCU.
10. The elevator board according to claim 8, characterized in that, The protection module includes at least relays, switches, and fuses connected to the electronic and electrical equipment of the elevator control cabinet, used for controlling the on / off control and overload protection of the electronic and electrical equipment.