A single-phase elevator power failure intelligent switching emergency device

Abstract

This utility model discloses a single-phase elevator power outage intelligent switching emergency device, belonging to the field of elevator power outage emergency control technology. Its key technical features include: unidirectional mains power, elevator emergency power supply, and the national power grid; a power outage detection module, which collects voltage and frequency parameters of the unidirectional mains power and the national power grid, receives pre-outage communication signals from the power grid, and identifies the outage type; and an intelligent control module, electrically connected to the power outage detection module, which receives power outage detection data and generates power switching commands and emergency operation control logic. This utility model, through the collaboration of the power outage detection module and the intelligent control module, employs a switching timing optimization algorithm and a contactless switching switch to achieve millisecond-level seamless power switching, solving the problem of slow switching response in existing devices, avoiding power outage swaying during elevator switching, and ensuring operational stability.

Description

Technical Field

[0001] This utility model relates to the field of elevator power outage emergency control technology, specifically a single-phase elevator power outage intelligent switching emergency device. Background Technology

[0002] Single-phase elevators are widely used in low-rise residential buildings, small office buildings and other scenarios due to their convenient installation and low cost. Emergency leveling and door opening in the event of a power outage is a core requirement to ensure passenger safety.

[0003] Existing Chinese patent CN202829191U, published on March 27, 2013, discloses an elevator emergency power supply system. The elevator emergency power supply system includes an external power interface, an external power detection circuit, a power switching unit, an inverter, a backup power module, an elevator controller, and a voice unit. The external power interface, inverter, and power switching unit are all connected to the external power detection circuit. The power switching unit is also connected to the external power interface and the inverter. The backup power module is connected to the inverter. The power switching unit and the voice unit are both connected to the elevator controller.

[0004] However, the aforementioned elevator emergency power supply system suffers from slow switching response, poor emergency logic, and poor compatibility, making it unsuitable for various types of one-way elevators.

[0005] Therefore, we propose a novel intelligent switching emergency device for single-phase elevator power outages to solve the above-mentioned technical problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an intelligent switching emergency device for single-phase elevator power outages, which solves the problems of slow switching response, poor emergency logic, and poor compatibility of the aforementioned elevator emergency power supply systems, thus making them unsuitable for various types of single-phase elevators.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a single-phase elevator power outage intelligent switching emergency device, comprising:

[0010] One-way mains power, elevator emergency power supply and State Grid;

[0011] A power outage detection module is used to collect voltage and frequency parameters of unidirectional mains power and the national power grid, receive power grid pre-outage communication signals, and identify the type of power outage.

[0012] The intelligent control module is electrically connected to the power outage detection module. The intelligent control module is used to receive power outage detection data and generate power switching commands and emergency operation control logic.

[0013] A power switching module is connected to the elevator emergency power supply, unidirectional mains power, the national grid and the elevator control system. The power switching module is used to respond to switching commands and realize seamless switching between unidirectional mains power, elevator emergency power supply and national grid.

[0014] An emergency drive module is electrically connected to the intelligent control module and the elevator traction motor. The emergency drive module is used to adapt to the drive requirements of a single-phase elevator.

[0015] The status feedback module is electrically connected to the intelligent control module and the elevator car monitoring system. The status feedback module is used to monitor the switching status and emergency operation parameters in real time and upload them to the monitoring terminal.

[0016] Preferably, the power outage detection module includes a mains power acquisition unit, a power grid acquisition unit, and a power outage judgment unit. The mains power acquisition unit and the power grid acquisition unit are used to collect information, and the power outage judgment unit judges the information collected by the mains power acquisition unit and the power grid acquisition unit.

[0017] Preferably, the intelligent control module includes an MCU controller, a storage unit, and an emergency algorithm library. The MCU controller is used to process data, the storage unit is used to pre-store the traction power parameters, leveling position data, and emergency strategies corresponding to different power outage types of different single-phase elevators, and the emergency algorithm library contains various algorithms.

[0018] Preferably, the emergency drive module includes an inverter unit, a motor control unit, and a power matching unit. The inverter unit can convert the elevator emergency power supply into DC voltage, the motor control unit can control the elevator traction motor, and the power matching unit dynamically matches the drive power of the traction motor according to the elevator load and car position to reduce emergency power consumption.

[0019] Preferably, the status feedback module includes a status acquisition unit, a fault alarm unit, and an operation data upload unit. The status acquisition unit monitors the completion status of the switching action, the remaining power of the emergency power supply, and the elevator leveling accuracy in real time. The fault alarm unit is electrically connected to the elevator monitoring platform. The operation data upload unit uploads emergency operation data to the cloud through a wireless communication module, supporting remote operation and maintenance.

[0020] Preferably, the emergency algorithm library includes a switching timing optimization algorithm, a level path planning algorithm, and an emergency power allocation algorithm.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, this utility model provides a single-phase elevator power outage intelligent switching emergency device, which has the following beneficial effects:

[0023] 1. This utility model achieves millisecond-level seamless power switching by coordinating a power outage detection module and an intelligent control module, using a switching timing optimization algorithm and a contactless switching switch. This solves the problem of slow switching response in existing devices, avoids power outage swaying during elevator switching, and ensures operational stability.

[0024] 2. The intelligent control module of this utility model integrates leveling path planning and power allocation algorithms. Combined with the elevator parameters pre-stored in the storage unit, it can dynamically plan the optimal leveling path according to the car position and load, and rationally allocate emergency power. This solves the problem of imperfect emergency logic in existing devices and improves leveling accuracy and emergency power utilization. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall modules of this utility model;

[0026] Figure 2 This is a schematic diagram of the power outage detection module of this utility model;

[0027] Figure 3 This is a schematic diagram of the intelligent control module of this utility model;

[0028] Figure 4 This is a schematic diagram of the emergency drive module of this utility model;

[0029] Figure 5 This is a schematic diagram of the status feedback module of this utility model.

[0030] In the picture:

[0031] 1. Single-phase mains power; 2. State Grid; 3. Power outage detection module; 31. Mains power acquisition unit; 32. Power grid acquisition unit; 33. Power outage judgment unit; 4. Intelligent control module; 41. MCU controller; 42. Storage unit; 43. Emergency algorithm library; 5. Power switching module; 6. Elevator control system; 7. Elevator emergency power supply; 8. Elevator car monitoring; 9. Status feedback module; 91. Status acquisition unit; 92. Fault alarm unit; 93. Operation data upload unit; 10. Elevator traction motor; 11. Emergency drive module; 111. Inverter unit; 112. Motor control unit; 113. Power adaptation unit. Detailed Implementation

[0032] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] Example 1

[0034] This embodiment provides a technical solution: a single-phase elevator power outage intelligent switching emergency device, such as... Figures 1-5 As shown, it includes a unidirectional mains power supply 1, an elevator emergency power supply 7, a State Grid 2, a power outage detection module 3, an intelligent control module 4, a power switching module 5, an emergency drive module 11, and a status feedback module 9.

[0035] The power outage detection module 3 is used to collect the voltage and frequency parameters of the unidirectional mains power 1 and the State Grid 2, and to receive the pre-outage communication signal from the power grid to identify the outage type. The intelligent control module 4 is electrically connected to the power outage detection module 3. The intelligent control module 4 is used to receive the power outage detection data, generate power switching commands and emergency operation control logic. The power switching module 5 is connected to the elevator emergency power supply 7, the unidirectional mains power 1, the State Grid 2 and the elevator control system 6 respectively. The power switching module 5 is used to respond to the switching command and realize seamless switching between the unidirectional mains power 1, the elevator emergency power supply 7 and the State Grid 2. The emergency drive module 11 is electrically connected to the intelligent control module 4 and the elevator traction motor 10. The emergency drive module 11 is used to adapt to the drive requirements of the single-phase elevator. The status feedback module 9 is electrically connected to the intelligent control module 4 and the elevator car monitoring 8. The status feedback module 9 is used to monitor the switching status and emergency operation parameters in real time and upload them to the monitoring terminal.

[0036] The power outage detection module 3 includes a mains power acquisition unit 31, a power grid acquisition unit 32, and a power outage judgment unit 33. The mains power acquisition unit 31 and the power grid acquisition unit 32 are used to collect information. The power outage judgment unit 33 judges the information collected by the mains power acquisition unit 31 and the power grid acquisition unit 32. The mains power acquisition unit 31 and the power grid acquisition unit 32 of the power outage detection module 3 collect the voltage and frequency parameters of the unidirectional mains power 1 and the State Grid 2 in real time. At the same time, they receive the power grid pre-outage communication signal and transmit it to the power outage judgment unit 33. The power outage judgment unit 33 quickly analyzes the data, identifies the power outage type (sudden power outage / predicted power outage) and sends it to the intelligent control module 4.

[0037] The intelligent control module 4 includes an MCU controller 41, a storage unit 42, and an emergency algorithm library 43. The MCU controller 41 is used to process data. The storage unit 42 is used to pre-store the traction power parameters, leveling position data, and emergency strategies corresponding to different power outage types of different single-phase elevators. The emergency algorithm library 43 contains various algorithms. The MCU controller 41 of the intelligent control module 4 calls the switching timing optimization algorithm of the emergency algorithm library 43, and combines it with the current elevator traction power and leveling position data pre-stored in the storage unit 42 to generate power switching instructions and emergency operation logic to ensure that the switching action is adapted to the elevator operation status.

[0038] The emergency algorithm library 43 includes a switching timing optimization algorithm, a level path planning algorithm, and an emergency power allocation algorithm.

[0039] Example 2

[0040] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 and Figure 4 As shown, to further better realize this utility model, the following configuration is specifically adopted: the emergency drive module 11 includes an inverter unit 111, a motor control unit 112, and a power adapter unit 113. The inverter unit 111 can convert the elevator emergency power supply 7 into DC voltage, the motor control unit 112 can control the elevator traction motor 10, and the power adapter unit 113 dynamically matches the drive power of the traction motor according to the elevator load and car position to reduce the energy consumption of the emergency power supply.

[0041] Power switching module 5 responds to control commands and achieves millisecond-level seamless switching between unidirectional mains power 1, State Grid 2 and elevator emergency power supply 7 through a contactless switching switch, preventing power failure of elevator traction motor 10. Emergency drive module 11 starts, inverter unit 111 converts the DC power of elevator emergency power supply 7 into single-phase AC power, motor control unit 112 precisely controls the speed and torque of traction motor, and power matching unit 113 dynamically matches drive power according to elevator load and car position, reducing energy consumption while ensuring leveling stability.

[0042] Example 3

[0043] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 and Figure 5As shown, to further better realize this utility model, the following configuration is specifically adopted: The status feedback module 9 includes a status acquisition unit 91, a fault alarm unit 92, and an operation data upload unit 93. The status acquisition unit 91 monitors the completion status of the switching action, the remaining power of the emergency power supply, and the elevator leveling accuracy in real time. The fault alarm unit 92 is electrically connected to the elevator monitoring platform. The operation data upload unit 93 uploads the emergency operation data to the cloud through a wireless communication module, supporting remote operation and maintenance.

[0044] The status acquisition unit 91 of the status feedback module 9 monitors parameters such as the power switching completion status, the remaining power of the emergency power supply, and the elevator leveling accuracy in real time, and continuously feeds them back to the intelligent control module 4. If an abnormality such as switching failure or insufficient power occurs, the fault alarm unit 92 immediately sends an alarm signal to the elevator monitoring platform. The operation data upload unit 93 uploads the emergency operation data to the cloud via wireless communication, supporting staff to remotely view the operation status and troubleshoot faults.

[0045] Working principle: Under normal conditions, the device monitors the power supply status of the unidirectional mains power 1 and the national power grid 2 in real time; when the power outage detection module 3 identifies the power outage signal, it quickly transmits the data to the intelligent control module 4.

[0046] The intelligent control module 4 calls the algorithm and pre-stored parameters to generate switching instructions and emergency logic. The power switching module 5 seamlessly switches to the elevator emergency power supply 7. The emergency drive module 11 adapts to the elevator drive requirements, drives the elevator to smoothly stop at a safe floor along the optimal path and opens the car door.

[0047] During an emergency, the status feedback module 9 monitors various parameters in real time, triggers an alarm and uploads data when an abnormality occurs; after the mains power is restored, the device automatically switches back to the normal power supply mode, and the elevator resumes normal operation.

[0048] The electrical components in this invention, such as the MCU controller, contactless switching switch, and inverter unit, are existing known technologies. Their models can be selected according to the power of a single-phase elevator. The control logic is conventional automation technology, so the internal circuits and control programs will not be explained in detail.

[0049] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A single-phase elevator power failure intelligent switching emergency device, characterized in that, include: One-way mains power (1), elevator emergency power supply (7) and State Grid (2); The power outage detection module (3) is used to collect the voltage and frequency parameters of the unidirectional mains power (1) and the State Grid (2), and to receive the pre-outage communication signal of the power grid and identify the outage type; Intelligent control module (4), which is electrically connected to power outage detection module (3), is used to receive power outage detection data and generate power switching instructions and emergency operation control logic; Power switching module (5), the power switching module (5) is connected to elevator emergency power supply (7), unidirectional mains power (1), State Grid (2) and elevator control system (6) respectively. The power switching module (5) is used to respond to switching commands to realize seamless switching between unidirectional mains power (1), elevator emergency power supply (7) and State Grid (2); Emergency drive module (11), which is electrically connected to intelligent control module (4) and elevator traction motor (10), and is used to adapt to the drive requirements of single-phase elevator; The status feedback module (9) is electrically connected to the intelligent control module (4) and the elevator car monitoring (8). The status feedback module (9) is used to monitor the switching status and emergency operation parameters in real time and upload them to the monitoring terminal.

2. The single-phase elevator power failure intelligent switching emergency device according to claim 1, characterized in that: The power outage detection module (3) includes a mains power acquisition unit (31), a power grid acquisition unit (32), and a power outage judgment unit (33). The mains power acquisition unit (31) and the power grid acquisition unit (32) are used to collect information, and the power outage judgment unit (33) judges the information collected by the mains power acquisition unit (31) and the power grid acquisition unit (32).

3. The single-phase elevator power failure intelligent switching emergency device according to claim 1, characterized in that: The intelligent control module (4) includes an MCU controller (41), a storage unit (42), and an emergency algorithm library (43). The MCU controller (41) is used to process data. The storage unit (42) is used to pre-store the traction power parameters, leveling position data, and emergency strategies corresponding to different power outage types of different single-phase elevators. The emergency algorithm library (43) contains various algorithms.

4. The single-phase elevator power failure intelligent switching emergency device according to claim 1, characterized in that: The emergency drive module (11) includes an inverter unit (111), a motor control unit (112), and a power adapter unit (113). The inverter unit (111) can convert the elevator emergency power supply (7) into DC voltage. The motor control unit (112) can control the elevator traction motor (10). The power adapter unit (113) dynamically matches the drive power of the traction motor according to the elevator load and car position to reduce the energy consumption of the emergency power supply.

5. The single-phase elevator power outage intelligent switching emergency device according to claim 1, characterized in that: The status feedback module (9) includes a status acquisition unit (91), a fault alarm unit (92), and an operation data upload unit (93). The status acquisition unit (91) monitors the completion status of the switching action, the remaining power of the emergency power supply, and the elevator leveling accuracy in real time. The fault alarm unit (92) is electrically connected to the elevator monitoring platform. The operation data upload unit (93) uploads emergency operation data to the cloud through a wireless communication module, supporting remote operation and maintenance.

6. The single-phase elevator power failure intelligent switching emergency device according to claim 3, characterized in that: The emergency algorithm library (43) includes a switching timing optimization algorithm, a level path planning algorithm, and an emergency power allocation algorithm.

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