Three-phase high-frequency elevator power failure emergency device

Abstract

The three-phase high-frequency elevator power failure emergency device comprises a box body, a battery pack, a main board and a circuit breaker are arranged in the box body, the main board comprises a mains supply, a charging circuit, a boosting module, an inversion module, an intelligent control module, a power cutting module, a battery pack output and a mains supply output, and the boosting module adopts a high-frequency transformer. The intelligent control module comprises a delayer, the mains supply is electrically connected with the charging circuit and the inverter module, the charging circuit is electrically connected with the battery pack, and the mains supply charges the battery pack through the charging circuit. The high-frequency transformer is adopted to replace a traditional low and medium frequency transformer, so that only one high-frequency transformer needs to be installed on the mainboard, the size of the mainboard can be effectively reduced, the overall size of the device is reduced, and the production cost is reduced; rapid switching of commercial power and battery pack power supply is realized, and the response speed of the system is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator power failure emergency devices, in particular to a three-phase high-frequency elevator power failure emergency device. Background Art

[0002] The elevator power failure emergency device is a device that can quickly start and provide emergency power when a power failure occurs in the elevator power supply system, allowing the elevator to level and open the car door to ensure the safe evacuation of passengers.

[0003] When the elevator is operating normally, the device is in monitoring mode. If it detects a mains power outage, it immediately activates a backup power source, such as a battery pack. Through a series of control circuits and drive systems, this power is transmitted to the elevator's control system, causing the elevator to travel at a low speed to the nearest floor and open the car doors, allowing passengers to exit safely.

[0004] Existing elevator power outage emergency devices usually use medium and low frequency transformers, which means that multiple transformers need to be installed on the main board at the same time, resulting in a larger main board and a larger overall size of the elevator emergency device. This not only takes up more external space but also has a high production cost. In addition, the existing elevator emergency device cannot quickly cut off and convert the AC power output and the battery power output, resulting in a slow system response speed during use.

[0005] Therefore, the applicant has made a useful design and found a solution to the above problem. The technical solution to be introduced below was produced in this context. Utility Model Content

[0006] The utility model provides a three-phase high-frequency elevator power failure emergency device to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A three-phase high-frequency elevator power outage emergency device comprises a box body, wherein a battery pack, a mainboard and a circuit breaker are arranged inside the box body, the mainboard comprises a mains power supply, a charging circuit, a boost module, an inverter module, an intelligent control module, a power-off module, a battery pack output and a mains output, the boost module adopts a high-frequency transformer, the intelligent control module comprises a time delayer, the mains power supply is electrically connected to the charging circuit and the inverter module respectively, the charging circuit is electrically connected to the battery pack, the mains power supply charges the battery pack through the charging circuit, the battery pack is electrically connected to the intelligent control module and the boost module respectively, the battery pack supplies power to the intelligent control module, the boost module is electrically connected to the inverter module, the inverter module is electrically connected to the battery pack output and the power-off module respectively, the power-off module is electrically connected to the intelligent control module and the mains output respectively, the power-off module is used to quickly cut off the mains power supply and transmit a power-off signal to the intelligent control module.

[0009] Preferably, the charging circuit input terminal is connected to the mains to charge the battery pack.

[0010] Preferably, the boost module is used to boost the initial voltage of the battery pack, and then the inverter module inverts the boosted direct current to output three-phase four-wire alternating current.

[0011] Beneficial effects

[0012] The above one or more technical solutions in the three-phase high-frequency elevator power failure emergency device provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] Through the above technical solution, when the mains power is cut off, the mainboard is powered by the battery pack, the power-off module cuts off the connection with the inverter module, thereby cutting off the mains output power, and transmitting the power-off signal to the intelligent control module. The delay device of the intelligent control module receives the signal and starts timing. At the same time, the intelligent control module turns on the battery pack to discharge. The 38V voltage of the battery pack is boosted to 600VDC by the boost module and inverted into 380VAC AC by the inverter module, and outputted through the battery pack for use. After the set delay time, the intelligent control module turns off the battery pack discharge to reduce energy loss. When the mains power is restored, the charging circuit automatically charges the battery pack. At that time, the intelligent control module controls the power-off module to close and restore the connection with the inverter module, thereby restoring the mains output to output the main power supply of the elevator. The utility model adopts a high-frequency transformer instead of the traditional medium- and low-frequency transformers, so that only a single high-frequency transformer needs to be installed on the mainboard, which can effectively reduce the volume of the mainboard, thereby reducing the overall volume of the device and reducing production costs. The power-off module cooperates with the intelligent control module to achieve rapid switching between mains power supply and battery power supply, effectively improving the system response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the principle structure of the utility model;

[0016] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0017] 1. Box; 2. Battery pack; 3. Main board; 4. Circuit breaker. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-2 As shown, it is a structural diagram of a three-phase high-frequency elevator power failure emergency device according to a preferred embodiment of the present invention;

[0022] In this embodiment, a three-phase high-frequency elevator power outage emergency device includes a box 1, wherein a battery pack 2, a mainboard 3 and a circuit breaker 4 are provided inside the box 1, and the circuit breaker 4 is used to switch the input power inside the box 1. The mainboard includes a mains power supply, a charging circuit, a boost module, an inverter module, an intelligent control module, a power-off module, a battery pack output, and a mains output. The boost module adopts a high-frequency transformer, and the intelligent control module includes a delay device. The mains power supply is electrically connected to the charging circuit and the inverter module respectively, and the charging circuit is electrically connected to the battery pack 2. The mains power supply charges the battery pack 2 through the charging circuit. The battery pack 2 is electrically connected to the intelligent control module and the boost module respectively, and the boost module is electrically connected to the inverter module. The inverter module is electrically connected to the battery pack output and the power-off module respectively, and the power-off module is electrically connected to the intelligent control module and the mains output respectively. The power-off module is used to quickly cut off the mains power supply and transmit a power-off signal to the intelligent control module. When the mains power is cut off, the mainboard 3 is powered by the battery pack 2, the power-off module cuts off the connection with the inverter module, thereby cutting off the mains output power, and transmits the power-off signal to the intelligent control module. The delay device of the intelligent control module receives the signal and starts timing. At the same time, the intelligent control module turns on the battery pack 2 to discharge. The 38V voltage of the battery pack 2 is boosted to 600VDC by the boost module and inverted into 380VAC AC through the inverter module, and output through the battery pack output for use. After the set delay time, the intelligent control module turns off the battery pack 2 to discharge, reducing energy loss. When the mains power is restored, the charging circuit automatically charges the battery pack 2. At that time, the intelligent control module controls the power-off module to close and restore the connection with the inverter module, thereby restoring the mains output to output the main power supply of the elevator.

[0023] In this embodiment, the input end of the charging circuit is connected to a mains power supply to charge the battery pack.

[0024] In this embodiment, the boost module boosts the battery pack voltage to 600VDC, and then the inverter module inverts the boosted DC power into 380VAC, outputs three-phase four-wire AC power, and then outputs the inverted AC power through the battery pack output for power supply.

[0025] The utility model provides a three-phase high-frequency elevator power failure emergency device, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as it can achieve its beneficial effects.

[0026] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0027] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A three-phase high-frequency elevator power failure emergency device, characterized by: It includes a box body, inside which a battery pack, a mainboard and a circuit breaker are arranged, the mainboard includes a mains power supply, a charging circuit, a boost module, an inverter module, an intelligent control module, a power-off module, a battery pack output and a mains output, the boost module adopts a high-frequency transformer, the intelligent control module includes a delay device, the mains power supply is electrically connected to the charging circuit and the inverter module respectively, the charging circuit is electrically connected to the battery pack, the mains power supply charges the battery pack through the charging circuit, the battery pack is electrically connected to the intelligent control module and the boost module respectively, the battery pack supplies power to the intelligent control module, the boost module is electrically connected to the inverter module, the inverter module is electrically connected to the battery pack output and the power-off module respectively, the power-off module is electrically connected to the intelligent control module and the mains output respectively, the power-off module is used to quickly cut off the mains power supply and transmit a power-off signal to the intelligent control module.

2. A three-phase high-frequency elevator power failure emergency device according to claim 1, characterized in that: The input end of the charging circuit is connected to the mains to charge the battery pack.

3. A three-phase high-frequency elevator power failure emergency device according to claim 1, characterized in that: The boost module is used to boost the initial voltage of the battery pack, and then the inverter module inverts the boosted direct current to output three-phase four-wire alternating current.

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