High-voltage alternating-current power distribution control device

Abstract

The utility model provides a high-voltage AC power distribution control device. Comprising a box body, the box body is combined into a closed square cavity through a front panel, a left side plate, a right side plate, a rear panel and a cover plate, an acousto-optic assembly is installed at one end of the front panel, a control assembly is installed at the other end of the front panel, a control circuit module and a direct-current power module are installed on the inner side of the left side plate, and a clamping shaft is installed on the outer side of the left side plate; a clamping shaft is installed on the outer side of the right side plate, an electric connector is installed on the rear panel, and a contactor, an alternating current power supply module, a sampling module and a leakage current sensor are installed on the bottom plate. According to the utility model, all external electrical interfaces are arranged on the rear panel, and the control module part and the clamping shaft are arranged on the left side plate, so that the device is convenient for electric fitting, debugging and overhauling, the electric fitting difficulty is reduced, and the electric fitting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a high-voltage AC power distribution control device. Background Art

[0002] High-voltage AC power distribution is a crucial component of power distribution systems, typically serving as a front-end control device. This ensures power conversion and management for the entire equipment, as well as reliable and safe power supply to downstream consumers. Traditional electromechanical power distribution methods, such as contactors and relays, are no longer able to meet the diverse, intelligent, and multi-electrified needs of modern industrial power consumption. To address the high power, high frequency, long duration, and complex load characteristics of power distribution control devices, a new approach is combining high-voltage AC contactors with ARM microcontrollers for high-voltage AC power distribution. This not only reduces the product's size and weight, but also improves its stability and safety. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-voltage AC power distribution control device.

[0004] The utility model is achieved through the following technical solutions.

[0005] The utility model provides a high-voltage AC power distribution control device, which includes a box body, which is combined into a closed square cavity by a front panel, a left side panel, a right side panel, a rear panel and a cover plate. An audio-visual component is installed at one end of the front panel, and a control component is installed at the other end. A control circuit module and a DC power supply module are installed on the inner side of the left side panel, and a card shaft is installed on the outer side. A card shaft is installed on the outer side of the right side panel. An electrical connector is installed on the rear panel, and a contactor, an AC power supply module, a sampling module, and a leakage current sensor are installed on the bottom plate.

[0006] The sound and light component includes an indicator light, a buzzer, and an integrated digital meter head. The control component includes a push button switch and an air switch. The middle parts of the indicator light, buzzer, integrated digital meter head, push button switch, and air switch are all embedded in the front panel.

[0007] A handle is respectively installed at both ends of the front panel.

[0008] The control circuit module and the DC power supply module are both installed on the left side panel close to the rear panel.

[0009] The electrical connector includes a three-phase AC input, four three-phase AC outputs, two communication ports and a grounding post.

[0010] A plurality of clamps are also installed on the bottom plate.

[0011] A high-voltage AC power distribution control device; comprising a control module, a contactor module, a sample module, a power input port, a power output port, a communication input port, and a communication output port, wherein the control module is connected to the power module and the communication port respectively, and the input port is connected to the output port through the control module. The control module includes a controller, the input end of the controller is connected to a leakage current detection transformer, a current detection transformer, a push button switch, and a communication input port, and the output end is connected to an output indicator light, a fault indicator light, a buzzer, a contactor, and a communication output port.

[0012] The power supply module includes an AC / DC module and a DC / DC module. The input end of the AC / DC module is connected to the power input port, the output end is connected to the input end of the DC / DC module, the output end of the DC / DC module is connected to the LD0 block, and the LD0 module outputs 3.3V DC power.

[0013] The contactor module includes an input contactor and four output contactors, the coil ends of the input contactor and the four output contactors are respectively connected to the controller, one end of the contact of the input contactor is connected to the power input port and is at the rear pole of the power module, one end of the contact of the four output contactors is connected in parallel to the other end of the contact of the input contactor, and the other ends of the contacts of the four output contactors are respectively connected to an air switch, and the air switch is respectively connected to a power output port.

[0014] An RS422 transceiver and a digital isolator are connected in sequence between the communication input port, the communication output port and the controller.

[0015] The beneficial effects of this utility model are that all external electrical interfaces are mounted on the rear panel, while the control module and the card shaft are mounted on the left panel. To ensure reliable and neat electrical connections between components, the electrical wiring of each component on the bottom panel is secured by wire clamps on both sides and ultimately connected to the interfaces on the front panel. This design has the advantage of being compact and facilitating electrical installation, commissioning, and maintenance, reducing installation complexity and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the chassis front panel structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the left side panel structure of the chassis of the present invention;

[0018] Figure 3 This is a schematic diagram of the right side panel structure of the present utility model;

[0019] Figure 4 This is a schematic diagram of the back plate structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the bottom plate structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the appearance structure of the utility model;

[0022] Figure 7 This is a schematic diagram of the electrical principle of the utility model;

[0023] In the figure: 1-front panel, 2-indicator light, 3-buzzer, 4-integrated digital meter, 5-button switch, 6-air switch, 7-handle, 8-left side panel, 9-clamp shaft, 10-control circuit module, 11-DC power module, 12-right side panel, 13-leakage current sensor, 14-rear panel, 15-electrical connector, 16-grounding column part, 17-bottom plate, 18-clamp, 19-contactor, 20-AC power module, 21-sampling module. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the described solution.

[0025] A high-voltage AC power distribution control device; comprising a box body, which is combined into a closed square cavity by a front panel 1, a left side panel 8, a right side panel 12, a rear panel 14 and a cover plate. An audio-visual component is installed at one end of the front panel 1, and a control component is installed at the other end. A control circuit module 10 and a DC power supply module 11 are installed on the inner side of the left side panel 8, and a card shaft 9 is installed on the outer side. A card shaft 9 is installed on the outer side of the right side panel 12. An electrical connector is installed on the rear panel 14, and a contactor 19, an AC power supply module 20, a sampling module 21, and a leakage current sensor 13 are installed on the bottom plate 17.

[0026] For ease of operation, convenient observation, and operator safety, all external electrical interfaces are mounted on the rear panel, while the control module and card shaft are mounted on the left panel. To ensure reliable and neat electrical connections between components, the electrical wiring of each component on the bottom panel is secured with wire clamps on both sides and ultimately connected to the interfaces on the front panel. This design offers the advantage of a compact structure that facilitates electrical installation, commissioning, and maintenance, reduces installation complexity, and improves efficiency.

[0027] The side panels of the product case are mounted on the guide rails using clamping shafts, making them easy to assemble and disassemble. Traditional guide rail installations are difficult to assemble and disassemble, but the combination of clamping shafts and guide rails minimizes installation jams and inconvenient disassembly, ensuring easy repair and replacement of product failures.

[0028] The structural design is based on the product's mechanical properties and installation environment requirements, adhering to the principles of "applicability, reliability, advancement, and economy." The goal is to achieve a simple and rational structure, strong and reliable, easy transportation, installation, and maintenance, ergonomics, and harmonious colors for a visually appealing aesthetic. Heavy components are mounted on the baseplate. To ensure mechanical strength, eight "O"-shaped ribs are designed at the bottom, ensuring mechanical strength while also meeting weight reduction requirements.

[0029] Furthermore, the sound and light components provided on the front panel include an indicator light 2, a buzzer 3, and an integrated digital meter 4. The control component includes a push button switch 5 and an air switch 6. The middle parts of the indicator light 2, the buzzer 3, the integrated digital meter 4, the push button switch 5, and the air switch 6 are all embedded in the front panel 1. The input status of the three-phase AC power supply is displayed by the indicator light, the power meter displays the power usage, and the fault indicator light and the fault alarm are combined to remind the staff through sound and light alarms.

[0030] Furthermore, in order to facilitate the transportation of the box, a handle 7 is installed at each end of the front panel 1.

[0031] Furthermore, in order to facilitate the connection between the control circuit and the electrical connector, the control circuit module 10 and the DC power supply module 11 are both installed on the left side panel 8 close to the rear panel 14.

[0032] Furthermore, the electrical connector includes a three-phase AC input, four three-phase AC outputs, two communication ports, and a grounding post.

[0033] Furthermore, in order to fix the connection lines between the components, a plurality of clamps 18 are installed on the bottom plate 17.

[0034] A high-voltage AC power distribution control device; comprising a control module, a contactor module, a sample module, a power input port, a power output port, a communication input port, and a communication output port, wherein the control module is connected to the power module and the communication port respectively, and the input port is connected to the output port through the control module. The control module includes a controller, the input end of the controller is connected to a leakage current detection transformer, a current detection transformer, a push button switch, and a communication input port, and the output end is connected to an output indicator light, a fault indicator light, a buzzer, a contactor, and a communication output port.

[0035] The power supply module includes an AC / DC module and a DC / DC module. The input end of the AC / DC module is connected to the power input port, the output end is connected to the input end of the DC / DC module, the output end of the DC / DC module is connected to the LD0 block, and the LD0 module outputs 3.3V DC power.

[0036] The contactor module includes an input contactor and four output contactors, the coil ends of the input contactor and the four output contactors are respectively connected to the controller, one end of the contact of the input contactor is connected to the power input port and is at the rear pole of the power module, one end of the contact of the four output contactors is connected in parallel to the other end of the contact of the input contactor, and the other ends of the contacts of the four output contactors are respectively connected to an air switch, and the air switch is respectively connected to a power output port.

[0037] An RS422 transceiver and a digital isolator are connected in sequence between the communication input port and the communication output port and the controller.

[0038] The controller has the basic functions of input power distribution management, output power distribution management, distribution output switch control or remote control (RS422), host computer power supply status monitoring, voltage and current monitoring; it also has the protection functions of leakage current protection, phase sequence protection, phase loss protection, short circuit protection, voltage overvoltage and undervoltage, overload warning and protection.

[0039] Power distribution management uses three-phase, three-wire, 380V AC power input via a connector to the power distribution control device. After passing through the input contactor switch and input circuit breaker, it is distributed to the AC contactor. The AC contactor acts as the output distribution switch, controlling the opening and closing of each output. The power distribution output is controlled by a self-resetting pushbutton switch that collects the switch status from the controller. Remote control (RS422) utilizes the RS422 communication protocol. The controller receives on / off commands from the host computer via the RS422 bus and controls the opening and closing of the input and output contactors. Voltage, current, and power monitoring are implemented; voltage monitoring uses an integrated digital meter to directly collect voltage; current collection uses a transformer and sends the data to the integrated digital meter; the integrated digital meter collects power data through calculation.

Claims

1. A high-voltage AC power distribution control device, characterized in that: The invention comprises a box body, wherein the box body is combined into a closed square cavity by a front panel (1), a left side panel (8), a right side panel (12), a rear panel (14), a bottom panel (17) and a cover panel, wherein one end of the front panel (1) is installed with an audio-visual component, and the other end is installed with a control component, the inner side of the left side panel (8) is installed with a control circuit module (10) and a DC power supply module (11), and the outer side is installed with a card shaft (9), the outer side of the right side panel (12) is installed with a card shaft (9), the rear panel (14) is installed with an electric connector, and the bottom panel (17) is installed with a contactor (19), an AC power supply module (20), a sampling module (21) and a leakage current sensor (13).

2. The high-voltage AC power distribution control device according to claim 1, wherein: The sound and light assembly comprises an indicator light (2), a buzzer (3), and an integrated digital meter (4); the control assembly comprises a push button switch (5) and an air switch (6); and the middle parts of the indicator light (2), the buzzer (3), the integrated digital meter (4), the push button switch (5), and the air switch (6) are all embedded in the front panel (1).

3. The high-voltage AC power distribution control device according to claim 2, wherein: A handle (7) is also installed at each end of the front panel (1).

4. The high-voltage AC power distribution control device according to claim 1, wherein: The control circuit module (10) and the DC power supply module (11) are both installed on the left side panel (8) close to the rear panel (14).

5. The high-voltage AC power distribution control device according to claim 1, wherein: The electrical connector includes a three-phase AC input, four three-phase AC outputs, two communication ports and a grounding post.

6. The high-voltage AC power distribution control device according to claim 1, wherein: A plurality of clamps (18) are also installed on the base plate (17).

7. The high-voltage AC power distribution control device according to claim 1, wherein: The control component includes a control module, a contactor module, a sample module, a power input port, a power output port, a communication input port, and a communication output port. The control module is connected to the power module and the communication port respectively, and the input port is connected to the output port through the control module. The control module includes a controller, and the input end of the controller is connected to the leakage current detection transformer, the current detection transformer, the button switch, and the communication input port, and the output end is connected to the output indicator light, the fault indicator light, the buzzer, the contactor, and the communication output port.

8. The high-voltage AC power distribution control device according to claim 1, wherein: The power supply module includes an AC / DC module and a DC / DC module. The input end of the AC / DC module is connected to the power input port, the output end is connected to the input end of the DC / DC module, the output end of the DC / DC module is connected to the LD0 block, and the LD0 module outputs 3.3V DC power.

9. The high-voltage AC power distribution control device according to claim 7, wherein: The contactor module includes an input contactor and four output contactors, the coil ends of the input contactor and the four output contactors are respectively connected to the controller, one end of the contact of the input contactor is connected to the power input port and is at the rear pole of the power module, one end of the contact of the four output contactors is connected in parallel to the other end of the contact of the input contactor, and the other ends of the contacts of the four output contactors are respectively connected to an air switch, and the air switch is respectively connected to a power output port.

10. The high-voltage AC power distribution control device according to claim 7, wherein: An RS422 transceiver and a digital isolator are connected in sequence between the communication input port, the communication output port and the controller.

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