CN221767821U - A high voltage inverter control system - Google Patents

Abstract

The utility model discloses a high-voltage frequency converter control system, wherein the main control board comprises an interface board and a control board. The control board is fixedly arranged in a preset area of the interface board. At least one first onboard relay is arranged on the interface board, the control board is electrically connected to the first end of the first onboard relay, and the second end of the first onboard relay is electrically connected to a preset device to be controlled. An interface and at least one second onboard relay are arranged on the user interface board, and the first end of the interface and the first end of the second onboard relay are both electrically connected to the control board through the interface board. The user interface board is used to receive a control signal sent by a user device, and the control board controls the first onboard relay according to the control signal. The embodiment of the utility model can solve the problem that many types of cables in the traditional high-voltage frequency converter control system easily cause cable miswiring and virtual connection during the cable connection process, and each hardware occupies a small space and has a high degree of integration, which is conducive to reducing costs and failure rates.

Description

A high voltage inverter control system

Technical Field

The utility model relates to the technical field of high-voltage frequency converter control, in particular to a high-voltage frequency converter control system.

Background Art

The high-voltage inverter control system is a hardware control device that controls the primary power circuit of the high-voltage inverter, collects the input and output analog voltage and current, displays the inverter's own status, collects the temperature of the cabinet environment, and processes the host computer communication and the user's remote control command execution. The traditional high-voltage inverter control cabinet is designed according to the functional blocks. The hardware is generally divided into control boards, interface boards (analog and digital processing), switching power supplies, temperature controllers, user interfaces, etc. The general practice is to use discrete devices, that is, purchased finished devices such as terminal blocks, plug-in intermediate relays, switching power supplies and temperature controllers (phase-shifting transformer temperature and environmental humidity collection), and the various hardware are connected by cables.

However, each hardware is connected by cables, and the variety of cables easily causes cable miswiring, is not conducive to manufacturing, and has problems of false connections during the cable connection process. In addition, each hardware occupies a large space and has a high manufacturing cost.

Utility Model Content

The utility model provides a high-voltage frequency converter control system, which can solve the problems of cable miswiring and false connection during cable connection caused by the large variety of cables in traditional high-voltage frequency conversion control systems. In addition, each hardware occupies a small space and has a high degree of integration, which is conducive to reducing costs and failure rates.

In a first aspect, the utility model provides a high-voltage inverter control system, including: a main control board and a user interface board;

The main control board includes an interface board and a control board; the control board is fixedly arranged in a preset area of the interface board; at least one first onboard relay is arranged on the interface board, the control board is electrically connected to a first end of the first onboard relay, and a second end of the first onboard relay is electrically connected to a preset device to be controlled;

The user interface board is provided with an interface and at least one second onboard relay, the first end of the interface and the first end of the second onboard relay are both electrically connected to the control board through the interface board; the second end of the interface is used to connect to the user equipment, and the second end of the second onboard relay is connected to the operation circuit of the high-voltage inverter;

The user interface board is used to receive the control signal sent by the user equipment and transmit the control signal to the control board;

The control board is used to receive a control signal and control the switching state of the first onboard relay and the second onboard relay according to the control signal.

Optionally, the interface board is provided with a temperature and humidity detection module, a voltage and current acquisition module, and a power acquisition module;

The control board is electrically connected to the temperature and humidity detection module, the voltage and current acquisition module, and the power acquisition module;

The temperature and humidity detection module is used to collect the temperature and humidity near the control board and send a first temperature and humidity signal to the control board, and is also used to detect the temperature and humidity of the high-voltage inverter and send a second temperature and humidity signal to the control board;

The voltage and current acquisition module is used to collect the voltage and current of the high-voltage inverter and send voltage and current signals to the control board;

The power acquisition module is used to collect the power of the high-voltage inverter and send a power signal to the control board;

The control board is used to control the switching state of the first onboard relay according to the control signal and the first temperature and humidity signal, and to control the switching state of the second onboard relay according to the control signal, the second temperature and humidity signal, the voltage and current signal, and the power signal.

Optionally, the high-voltage inverter control system further includes: a multi-way switch power supply board;

The multi-way switching power supply board includes at least two different switching power supplies, which are electrically connected to the interface board; the at least two different switching power supplies are used to supply power to the interface board, the control board and the user interface board.

Optionally, the control board and the interface board are combined into one in the form of stacked boards; the control board is electrically connected to the interface board through a plug-in interface and is fixed to the interface board.

Optionally, both the user interface board and the interface board are welded with onboard double-layer wiring terminals; the user interface board and the interface board are electrically connected via a complete set of wiring harnesses and the onboard double-layer wiring terminals.

Optionally, the high-voltage inverter control system further includes: a control cabinet;

The main control board, user interface board and multi-way switch power supply board are all set in the control cabinet;

The temperature and humidity detection module includes a collection chip, a first collection probe and a second collection probe;

The first acquisition probe and the second acquisition probe are both electrically connected to the acquisition chip;

The first acquisition probe is arranged in the control cabinet, and is used to collect the temperature and humidity in the control cabinet, and send a first signal to the acquisition chip;

The second acquisition probe is arranged in the high-voltage frequency converter, and is used to collect the temperature and humidity of the high-voltage frequency converter, and send a second signal to the acquisition chip;

The acquisition chip is used to convert the first signal to generate a first temperature and humidity signal and send it to the control board, and to convert the second signal to generate a second temperature and humidity signal and send it to the control board.

Optionally, the device to be controlled is preset to be arranged in a control cabinet;

The preset devices to be controlled include fans;

The control board is used to control the switch state of the first onboard relay according to the control signal and the first temperature and humidity signal to control the opening and closing of the fan.

Optionally, the high-voltage inverter control system further includes: a display screen;

The display screen is arranged on the outer surface of the control cabinet; the display screen is electrically connected to the control board through the interface board;

The control panel is used to control the display screen to display the temperature and humidity in the control cabinet, as well as the temperature, humidity, voltage, current and power of the high-voltage inverter after receiving the first temperature and humidity signal, the second temperature and humidity signal, the voltage and current signal and the power signal.

Optionally, the interface board is also provided with an Internet port and a keyboard port;

The network port and the keyboard interface are electrically connected to the control panel.

The utility model discloses a high-voltage frequency converter control system, including: a main control board and a user interface board. The main control board includes an interface board and a control board, the control board is fixedly arranged in a preset area of the interface board, at least one first onboard relay is arranged on the interface board, the control board is electrically connected to the first end of the first onboard relay, and the second end of the first onboard relay is electrically connected to a preset device to be controlled. An interface and at least one second onboard relay are arranged on the user interface board, the first end of the interface and the first end of the second onboard relay are both electrically connected to the control board through the interface board; the second end of the interface is used to connect the user device, and the second end of the second onboard relay is connected to the operating circuit of the high-voltage frequency converter. The user interface board is used to receive a control signal sent by the user device and transmit the control signal to the control board. The control board is used to receive a control signal and control the switching state of the first onboard relay and the second onboard relay according to the control signal. The embodiment of the utility model achieves that the control board, the first onboard relay and the second onboard relay occupy a small space and have a high degree of integration by stacking the control board and the interface board, the first onboard relay and the interface board, and the second onboard relay and the user interface board, thereby avoiding too many types of cables. Moreover, electrical connection is performed by stacking boards, which can effectively solve the problem of false connection in cable connections and reduce the failure rate and manufacturing cost of cable connections.

It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a diagram showing the connection relationship of various hardware in a conventional high-voltage inverter control system in the prior art;

FIG2 is a layout diagram of a conventional high-voltage inverter control system in a control cabinet in the prior art;

FIG3 is a diagram showing the connection relationship of various hardware in a high-voltage inverter control system provided by the present invention;

FIG4 is a diagram showing the connection relationship of various hardware in another high-voltage inverter control system provided by the present invention;

FIG5 is a layout diagram of a high-voltage inverter control system in a control cabinet provided by the utility model.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

FIG1 is a diagram showing the connection relationship of various hardware in a conventional high-voltage inverter control system in the prior art. FIG2 is a diagram showing the layout of a conventional high-voltage inverter control system in a control cabinet in the prior art. Referring to FIG1 and FIG2, a conventional high-voltage inverter control system includes a control board, an interface board, a thermostat, a switching power supply 1, a switching power supply 2, a switching power supply 3, a discrete relay, a relay, and a user terminal block. The control board and the interface board are independent panels. The switching power supply 1, the switching power supply 2, the switching power supply 3, the relay, and the user interface (i.e., the terminal block) are all mounted on rails, and the thermostat, the switching power supply 1, the switching power supply 2, the switching power supply 3, the control board, and the relay are all connected to the interface board via cables, and the user interface is connected to the relay via cables.

FIG3 is a connection relationship diagram of various hardware in a high-voltage inverter control system provided by the utility model. Referring to FIG3, the high-voltage inverter control system includes: a main control board and a user interface board 3. The main control board includes an interface board 1 and a control board 2. The control board 2 is fixedly arranged in a preset area of the interface board 1; at least one first onboard relay 12 is arranged on the interface board 1, the control board 2 is electrically connected to the first end of the first onboard relay 12, and the second end of the first onboard relay 12 is electrically connected to the preset device to be controlled. The user interface board 3 is provided with an interface 11 and at least one second onboard relay 31. The first end of the interface 11 and the first end of the second onboard relay 31 are both electrically connected to the control board 2 through the interface board 1; the second end of the interface 11 is used to connect the user device, and the second end of the second onboard relay 31 is connected to the operation circuit of the high-voltage inverter. The user interface board 3 is used to receive the control signal sent by the user device and transmit the control signal to the control board 2. The control board 2 is used to receive the control signal and control the switch state of the first onboard relay 12 and the second onboard relay 31 according to the control signal.

Among them, the control board 2 and the interface board 1 are combined into one in the form of a stacked board. The interface board 1 can be a printed circuit board (PCB) as a base plate or a motherboard. The interface board 1 is used to process analog voltage, current and digital quantity, and the control board 2 is stacked on the interface board. The first onboard relay 12 can be fixed on the interface board by welding. The first onboard relay 12 is not only used to control the controlled device in the high-voltage inverter system, but also can control the voltage supplied to the control board 2 and the interface board 1. The second onboard relay 31 is also fixed on the user interface board 3 by welding. The second onboard relay 31 is used to control the signal output by the high-voltage inverter control system. The second onboard relay 31 is in a normally closed state.

Specifically, when the user sends a control signal through the user device, the control signal is transmitted to the interface board 1 through the user interface board 3, and the interface board 1 transmits the control signal to the control board 2. After receiving the control signal, the control board 2 controls the first onboard relay 12, the interface board 1 and the second onboard relay 31 to operate, thereby controlling the preset device to be controlled and the operating circuit of the high-voltage inverter.

In addition, the interface board 1 can also detect the voltage, current and power of the operating circuit in the high-voltage inverter, and perform analog-to-digital conversion on the voltage, current and power in the operating circuit of the high-voltage inverter, and send voltage and current signals and power signals to the control board 2. After the control board 2 receives the voltage and current signals and power signals, it controls the switching state of the second onboard relay 31 according to whether the processed voltage, current and power meet the requirements, thereby controlling the operating circuit of the high-voltage inverter.

In the technical method provided in the embodiment of the utility model, the control board 2 is electrically connected to the interface board 1 in the form of stacked boards, the first onboard relay 12 is fixed on the interface board 1 and electrically connected to the interface board 1 by welding, the first onboard relay 12 is electrically connected to the control board 2 through the interface board 1, and the first onboard relay 12 is also electrically connected to the device to be controlled. The second onboard relay 31 is fixed on the user interface board 1 by welding and electrically connected to the user interface board 3, the second onboard relay 31 is electrically connected to the control board 2 through the user interface board 3 and the interface board 1, and the second onboard relay 31 is also electrically connected to the high-voltage frequency converter, and the user interface board 3 is used to receive the control signal sent by the user device and transmit the control signal to the control board 2. The control board 2 is used to receive the control signal and control the switching state of the first onboard relay 12 and the second onboard relay 31 according to the control signal. The embodiment of the utility model achieves that the control board 2 and the interface board 1 are stacked, the first onboard relay 12 and the interface board 1 are stacked, and the second onboard relay 31 and the user interface board 3 are stacked to achieve that the control board, the first onboard relay 12 and the second onboard relay 31 occupy a small space and have a high degree of integration, thereby avoiding too many types of cables. Moreover, electrical connection is performed by stacking boards, which can effectively solve the problem of false connection in cable connections and reduce the failure rate and manufacturing cost of cable connections.

Continuing to refer to FIG. 3 , based on the above embodiment, optionally, the control board 2 and the interface board 1 are combined into one in the form of stacked boards, and the control board 2 is electrically connected to the interface board 1 through the plug-in interface 21 and fixed on the interface board 1 .

The plug interface 21 can be in the form of a 40-pin pin header or other forms. The control board 2 adopts a female header, which can be divided into single-row, double-row, triple-row and quad-row according to the number of rows of pins. The embodiment of the utility model does not limit the distance between the pins and the number of rows of pins.

In the embodiment of the utility model, the control board 2 is electrically connected to the interface board 1 through the plug-in interface 21, so that the control board 2 is combined with the interface board 1 in the form of stacked boards. This not only has high integration, saves installation space, and has high reliability of the plug-in interface 21, but also effectively solves the problem of false connection of cable connections and improves the stability of cable connections.

3 , based on the above embodiment, optionally, the interface board 1 is further provided with an internet port 13 and a keyboard interface 14 . The internet port 13 and the keyboard interface 14 are electrically connected to the control board 2 .

The network port 13 is provided so that the interface board 1 can be controlled to work via the network. The keyboard interface 14 is used to connect an external keyboard so that the user can also control the interface board 1 to work via the keyboard.

3 , based on the above embodiment, optionally, both the user interface board 3 and the interface board 1 are welded with onboard double-layer wiring terminals 11. The user interface board 3 and the interface board 1 are electrically connected via a complete set of wiring harnesses and the onboard double-layer wiring terminals 11.

In the embodiment of the utility model, on-board double-layer wiring terminals 11 are welded on both the user interface board 3 and the interface board 1, which facilitates the connection between the user equipment and the user interface board 3 and the connection between the interface board 1 and the operating circuit of the high-voltage inverter, and the user interface board 3 and the interface board 1 are connected through a complete set of wiring harnesses and the on-board double-layer wiring terminals 11, so that the connecting cables are unified, which not only avoids the problem of easy miswiring, but also avoids cumbersome wiring.

FIG4 is a connection diagram of various hardware in another high-voltage inverter control system provided by the utility model. Referring to FIG4, based on the above embodiments, optionally, a temperature and humidity detection module 15, a voltage and current acquisition module 16 and a power acquisition module 17 are provided on the interface board 1. The control board 2 is electrically connected to the temperature and humidity detection module 15, the voltage and current acquisition module 16 and the power acquisition module 17. The temperature and humidity detection module 15 is used to collect the temperature and humidity near the control board, and send a first temperature and humidity signal to the control board 2. It is also used to detect the temperature and humidity of the high-voltage inverter and send a second temperature and humidity signal to the control board 2. The voltage and current acquisition module 16 is used to collect the voltage and current of the high-voltage inverter and send a voltage and current signal to the control board 2. The power acquisition module 17 is used to collect the power of the high-voltage inverter and send a power signal to the control board 2. The control board 2 is used to control the switch state of the first onboard relay 12 according to the control signal and the first temperature and humidity signal, and control the switch state of the second onboard relay 31 according to the control signal, the second temperature and humidity signal, the voltage and current signal and the power signal.

Among them, the temperature and humidity detection module 15 includes an ARM chip, which converts the temperature and humidity signals into digital signals. The current and voltage acquisition module may include a current and voltage sensor. The temperature and humidity detection module 15 and the current and voltage acquisition module 16 are directly welded on the interface board 1. The high-voltage inverter includes a high-voltage input unit and a power unit. The high-voltage input unit is electrically connected to the current and voltage acquisition module 16 through a cable, and the power unit is electrically connected to the power acquisition module 17 through an optical fiber.

Specifically, when the control signal sent by the user is transmitted to the interface board 1 through the user interface board 3, and the interface board 1 is transmitted to the control board 2, the control board 2 controls the first onboard relay 12, the second onboard relay 31, the temperature and humidity detection module 15, the voltage and current acquisition module 16 and the power acquisition module 17 to work after receiving the control signal. The voltage and current acquisition module 16 collects the voltage and current in the operating circuit of the high-voltage inverter, performs analog-to-digital conversion on the collected voltage and current, and transmits the analog-to-digital converted voltage and current signals to the control board 2. After receiving the voltage and current signals, the control board 2 will determine whether the processed voltage and current signals meet the requirements. If the processed voltage and current do not meet the requirements, the control board 2 controls the second onboard relay 31 to disconnect. If the processed voltage and current meet the requirements, the control board 2 controls the second onboard relay 31 to close, so that the processed voltage and current are input into the power unit to do work. After the power unit has completed its work, the power collection unit 17 collects the power output by the power unit and sends a power signal to the control board 2. After receiving the power signal, the control board 2 determines whether the power in the operating circuit of the high-voltage inverter meets the requirements. If not, the second onboard relay 31 is controlled to be disconnected. If it meets the requirements, the second onboard relay 31 is controlled to remain closed.

When the control board 2 controls the temperature and humidity detection module 15 to work, the temperature and humidity detection module 15 collects the temperature and humidity near the control board in real time, and sends a first temperature and humidity signal to the control board 2. The control board 2 determines whether the temperature and humidity near the control board 2 are too high. If the temperature and humidity near the control board 2 are too high, the control board 2 controls the first onboard relay 12 to close according to the first temperature and humidity signal, so that the controlled device can operate. If the temperature and humidity near the control board 2 are not high, the control board 2 controls the first onboard relay 12 to disconnect. In addition, the temperature and humidity detection module 15 also collects the temperature and humidity of the high-voltage inverter for detection, and sends a second temperature and humidity signal to the control board 2. The control board 2 determines whether the temperature and humidity of the high-voltage inverter are too high. If the temperature and humidity of the high-voltage inverter are too high, the controller 2 controls the second onboard relay 31 to disconnect according to the second temperature and humidity signal. If the temperature and humidity of the high-voltage inverter are not high, the second onboard relay 31 maintains a closed state.

In the embodiment of the utility model, a temperature and humidity detection module 15, a voltage and current acquisition module 16 and a power module 17 are arranged on the interface board 1 to realize the temperature and humidity detection of the high-voltage frequency converter and the high-voltage frequency converter control system and the current, voltage and power detection of the high-voltage frequency converter, and the control board 2 controls the switch state of the first onboard relay 12 according to the detected first temperature and humidity signal, and controls the switch state of the second onboard relay 31 according to the second temperature and humidity signal, the current and voltage signal and the power signal. This superposition of the temperature and humidity detection module 15, the voltage and current acquisition module 16 and the power acquisition module on the interface board 1 not only reduces the occupied space of the temperature and humidity detection module 15, the voltage and current acquisition module 16 and the power acquisition unit 17, but also reduces the cables connected between the temperature and humidity detection module 15, the current and voltage acquisition module 16, the power acquisition module 17 and the control board and the interface board, avoiding the intricate cables between the hardware and the problem of virtual cable connection.

Continuing to refer to FIG. 4 , based on the above embodiment, optionally, the high-voltage inverter control system further includes: a multi-way switch power supply board 4. The multi-way switch power supply board 4 includes at least two different switch power supplies, and the multi-way switch power supply board 4 is electrically connected to the interface board 1. At least two different switch power supplies are used to power the interface board 1, the control board 2, and the user interface board 3.

Among them, at least two different switching power supplies are integrated on the multi-way switching power supply board 4, for example, a switching power supply with a voltage of 5V, a switching power supply with a voltage of 10V, and a switching power supply with a voltage of 15V. The multi-way switching power supply board 4 is used to power the interface board 1 and the control board 2 as well as the modules on the interface board 1 that require different voltages. The multi-way switching power supply board 4 is connected to the interface board 1 through a cable.

In this embodiment, by independently designing the multi-output switching power supply board 4, not only can the control board 2 and the interface board 1 be powered, but also a plurality of finished switching power supplies can be saved, which is conducive to reducing costs.

FIG5 is a layout diagram of a high-voltage frequency converter control system in a control cabinet provided by the utility model. Referring to FIG5, based on the above-mentioned embodiments, optionally, the high-voltage frequency converter control system further includes: a control cabinet 5. The main control board, the user interface board 3 and the multi-way switch power supply board 4 are all arranged in the control cabinet 5. The temperature and humidity detection module 15 includes an acquisition chip, a first acquisition probe and a second acquisition probe. The first acquisition probe and the second acquisition probe are both electrically connected to the acquisition chip. The first acquisition probe is arranged in the control cabinet 5, and is used to collect the temperature and humidity in the control cabinet 5, and send a first signal to the acquisition chip. The second acquisition probe is arranged in the high-voltage frequency converter, and is used to collect the temperature and humidity of the high-voltage frequency converter, and send a second signal to the acquisition chip. The acquisition chip is used to convert the first signal to generate a first temperature and humidity signal and send it to the control board 2, and convert the second signal to generate a second temperature and humidity signal and send it to the control board 2.

Among them, the acquisition chip can be an ARM chip, and the second acquisition probe can be a phase-shifting transformer temperature control probe.

Specifically, when the temperature and humidity detection module 15 collects the temperature and humidity in the control cabinet 5, the first acquisition probe of the temperature and humidity detection module 15 collects the temperature and humidity in the control cabinet 5, and sends a first signal to the acquisition chip, which converts the first signal to generate a first temperature and humidity signal, and sends the first temperature and humidity signal to the control board 2. When the temperature and humidity detection module 15 collects the temperature and humidity of the high-voltage inverter, the second acquisition probe of the temperature and humidity detection module 15 collects the temperature and humidity of the high-voltage inverter, and sends a second signal to the acquisition chip, which converts the second signal to generate a second temperature and humidity signal, and sends the second temperature and humidity signal to the control board 2.

In the embodiment of the utility model, the main control board, the user interface board 3 and the multi-way switch board 4 are all arranged in the control cabinet 5, and the temperature and humidity detection module 15 realizes the collection of the temperature and humidity of the control cabinet 5 and the high-voltage inverter through the first collection probe and the second collection probe, without the need for cable connection. The main control board, the user interface board 3 and the multi-way switch power supply board 4 are stacked in a small space, which can not only reduce the use of cable connection lines, but also reduce the space occupied by the control cabinet 5, thereby reducing the cost of the control cabinet 5.

Continuing to refer to FIG5, based on the above embodiment, optionally, the preset device to be controlled is set in the control cabinet 5. The preset device to be controlled includes a fan. The control board 2 is used to control the switch state of the first onboard relay 12 according to the control signal and the first temperature and humidity signal to control the opening and closing of the fan.

The fan is used to reduce the temperature and humidity of the control cabinet. If the temperature and humidity of the control cabinet 5 are too high, the control board 2 will control the first onboard relay 12 to close to control the fan to turn on. If the temperature and humidity of the control cabinet 5 are not high, the control board 2 will control the first onboard relay 12 to disconnect through the first temperature and humidity signal to turn off the fan.

In the embodiment of the utility model, the control board 2 controls the switch state of the first onboard relay 12 to control the opening and closing of the fan, which is beneficial to reducing the temperature and humidity of the control cabinet 2.

Continuing to refer to FIG. 5, based on the above embodiment, optionally, the high-voltage inverter control system further includes: a display screen. The display screen is arranged on the outer surface of the control cabinet 5. The display screen is electrically connected to the control board 2 through the interface board 1. The control board 2 is used to control the display screen to display the temperature and humidity in the control cabinet 5, and the temperature, humidity, voltage, current and power of the high-voltage inverter after receiving the first temperature and humidity signal, the second temperature and humidity signal, the voltage and current signal and the power signal.

Among them, the display screen is connected to the interface board 1 through a cable. When the temperature and humidity detection module 15 collects the temperature and humidity of the control cabinet 5 through the first collection probe, the first collection probe sends a first signal to the collection chip, and the collection chip converts the first signal into a first temperature and humidity signal and transmits it to the control board 2. After receiving the first temperature and humidity signal, the control board 2 controls the display screen to display the temperature and humidity of the control cabinet 5. When the second collection probe collects the temperature and humidity of the high-voltage inverter, the second collection probe sends a second signal to the collection chip, and the collection chip converts the second signal into a second temperature and humidity signal and transmits it to the control board 2. After receiving the second temperature and humidity signal, the control board 2 controls the display screen to display the temperature and humidity of the high-voltage inverter. When the high-voltage inverter inputs current and voltage to the interface board 1, the current and voltage collection module on the interface board 1 will collect the current and voltage input by the high-voltage inverter, and transmit the collected voltage and current to the interface board. After the interface board processes the voltage and current, it transmits the voltage and current signal to the control board 2. The control board controls the display screen to display the current and voltage according to the received current and voltage signal.

In the embodiment of the utility model, a display screen is provided on the outer surface of the control cabinet 5, which can display the temperature and humidity of the control cabinet 5 and the temperature and humidity as well as the current and voltage of the high-voltage inverter, thereby facilitating the user to view the temperature and humidity of the control cabinet 5 and the temperature and humidity as well as the current and voltage of the high-voltage inverter in real time, so as to facilitate the user to make decisions.

It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

The above specific implementations do not constitute a limitation on the protection scope of the utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims (9)

1. A high voltage inverter control system, characterized in that it comprises: Main control board and user interface board; The main control board includes an interface board and a control board; the control board is fixedly arranged in a preset area of the interface board; at least one first onboard relay is arranged on the interface board, the control board is electrically connected to a first end of the first onboard relay, and a second end of the first onboard relay is electrically connected to a preset device to be controlled; The user interface board is provided with an interface and at least one second onboard relay, the first end of the interface and the first end of the second onboard relay are both electrically connected to the control board through the interface board; the second end of the interface is used to connect to the user equipment, and the second end of the second onboard relay is connected to the operation circuit of the high-voltage inverter; The user interface board is used to receive a control signal sent by a user device and transmit the control signal to the control board; The control board is used to receive the control signal and control the switching states of the first onboard relay and the second onboard relay according to the control signal. 2. The high voltage inverter control system according to claim 1, characterized in that: The interface board is provided with a temperature and humidity detection module, a voltage and current acquisition module, and a power acquisition module; The control board is electrically connected to the temperature and humidity detection module, the voltage and current acquisition module, and the power acquisition module; The temperature and humidity detection module is used to collect the temperature and humidity near the control board and send a first temperature and humidity signal to the control board, and is also used to detect the temperature and humidity of the high-voltage inverter and send a second temperature and humidity signal to the control board; The voltage and current acquisition module is used to collect the voltage and current of the high-voltage inverter and send voltage and current signals to the control board; The power collection module is used to collect the power of the high-voltage inverter and send a power signal to the control board; The control board is used to control the switching state of the first onboard relay according to the control signal and the first temperature and humidity signal, and to control the switching state of the second onboard relay according to the control signal, the second temperature and humidity signal, the voltage and current signal and the power signal. 3. The high-voltage inverter control system according to claim 2, characterized in that it also includes: Multi-way switch power board; The multi-way switching power supply board includes at least two different switching power supplies, and the switching power supplies are electrically connected to the interface board; at least two different switching power supplies are used to supply power to the interface board, the control board and the user interface board. 4. The high voltage inverter control system according to claim 1, characterized in that: The control board and the interface board are combined into one in the form of stacked boards; The control board is electrically connected to the interface board through a plug-in interface and is fixed on the interface board. 5. The high voltage inverter control system according to claim 1, characterized in that: The user interface board and the interface board are both welded with on-board double-layer wiring terminals; the user interface board and the interface board are electrically connected through a complete set of wiring harnesses and the on-board double-layer wiring terminals. 6. The high-voltage inverter control system according to claim 3, characterized in that it also includes: Control cabinet; The main control board, the user interface board and the multi-way switch power supply board are all arranged in the control cabinet; The temperature and humidity detection module includes a collection chip, a first collection probe and a second collection probe; The first acquisition probe and the second acquisition probe are both electrically connected to the acquisition chip; The first acquisition probe is arranged in the control cabinet, and is used to collect the temperature and humidity in the control cabinet, and send a first signal to the acquisition chip; The second acquisition probe is arranged in the high-voltage inverter, and is used to collect the temperature and humidity of the high-voltage inverter, and send a second signal to the acquisition chip; The acquisition chip is used to convert the first signal to generate a first temperature and humidity signal and send it to the control board, and to convert the second signal to generate a second temperature and humidity signal and send it to the control board. 7. The high voltage inverter control system according to claim 6, characterized in that: The preset device to be controlled is arranged in the control cabinet; The preset device to be controlled includes a fan; The control board is used to control the switch state of the first onboard relay according to the control signal and the first temperature and humidity signal to control the opening and closing of the fan. 8. The high-voltage inverter control system according to claim 6, further comprising: Display screen; The display screen is arranged on the outer surface of the control cabinet; the display screen is electrically connected to the control board through the interface board; The control panel is used to control the display screen to display the temperature and humidity in the control cabinet, and to display the temperature, humidity, voltage, current and power of the high-voltage inverter after receiving the first temperature and humidity signal, the second temperature and humidity signal, the voltage and current signal and the power signal. 9. The high voltage inverter control system according to claim 1, characterized in that: The interface board is also provided with an Internet port and a keyboard interface; The network port and the keyboard interface are electrically connected to the control board.