Intermediate frequency power supply capable of performing timing control according to current time

Abstract

The utility model relates to an intermediate-frequency power supply capable of timing control according to current time, which comprises an intermediate-frequency power supply control system, an intermediate-frequency power supply output circuit and a clock module, the intermediate-frequency power supply control system is electrically connected with the intermediate-frequency power supply output circuit, and the intermediate-frequency power supply control system is in communication connection with a 485 pin of the clock module to obtain current time parameters in real time; and timing is carried out according to the current time parameter, so that the medium-frequency power supply output circuit is controlled to output current to a load within a preset time. According to the utility model, the high-precision clock module is arranged in the intermediate-frequency power supply, so that the current time can be acquired in real time, and the timing control function of the intermediate-frequency power supply is realized according to the current time.

Description

Technical Field

[0001] The utility model relates to the technical field of medium frequency power supplies, in particular to a medium frequency power supply which can be controlled according to the current time. Background Art

[0002] With the rapid development of modern industrial technology, medium frequency power supply, as an important power conversion equipment, is increasingly widely used in various fields. It converts the power from AC power or other DC sources into medium frequency power, usually between hundreds of kilohertz and several megahertz, to provide stable power supply for many industries such as metallurgy, electricity, machinery, chemical industry, building materials, etc. Medium frequency power supply usually consists of a frequency converter and an output matching network, in which the frequency converter is responsible for power conversion, while the output matching network is used to adjust the output voltage, current and phase to meet the needs of specific loads.

[0003] The current medium frequency power supply does not have the function of real-time reading of the current time, and thus cannot control the operation or stop time of the load at the specified time, so that the equipment cannot be effectively used in the specified time period. If you want the medium frequency power supply to run at the specified time, it can only be turned on manually, which greatly wastes manpower and time costs and cannot make effective use of resources.

[0004] To achieve this function, the traditional method is usually to connect an external real-time control system, but this method not only increases the complexity and cost of the system, but also may introduce additional failure points, reducing the stability and reliability of the system. In addition, for certain field environments, such as high temperature, high humidity, strong electromagnetic interference and other harsh conditions, the external control system may have difficulty working properly, thus affecting the operation of the entire system.

[0005] Therefore, there is an urgent need to provide a medium frequency power supply that can be controlled according to the current time to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings and defects of the prior art and provide a medium frequency power supply that can be timing controlled according to the current time, which can obtain the current time in real time and realize the timing control function of the medium frequency power supply according to the current time.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] A medium frequency power supply that can be controlled according to the current time timing, includes a medium frequency power supply control system, a medium frequency power supply output circuit and a clock module, wherein the medium frequency power supply control system is electrically connected to the medium frequency power supply output circuit, and the medium frequency power supply control system is communicatively connected to the clock module 485 pin, and the current time parameters are obtained in real time, and timing is performed according to the current time parameters, so that the medium frequency power supply output circuit is controlled to output current to supply a load at a preset time.

[0009] As a preferred technical solution of the present utility model, the clock module is a clock pulse output module, and the model of the clock pulse output module is QD-RTC-V2.

[0010] As a preferred technical solution of the utility model, the intermediate frequency power supply is also provided with an external keyboard, and the external keyboard communicates data with the intermediate frequency power supply control system and the clock module respectively through 485 communication and an external keyboard line.

[0011] As an optimal technical solution of the utility model, the intermediate frequency power supply output circuit includes a rectifier, a filter circuit, and an inverter. The inverter is communicatively connected to the intermediate frequency power supply control system, receives the output control signal of the intermediate frequency power supply control system, and outputs the filter to the load according to the output control signal.

[0012] As a preferred technical solution of the utility model, the medium frequency power supply is also provided with a user display device, which is connected to the medium frequency power supply control system to display and configure the processed time and date information.

[0013] As a preferred technical solution of the utility model, the medium frequency power supply is also equipped with a current and voltage protection system, and the current and voltage protection system is electrically connected to the medium frequency power supply control system.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model has a high-precision clock module built into the medium frequency power supply, which can obtain the current time in real time and realize the timing control function of the medium frequency power supply according to the current time. The power output can be controlled according to the preset time parameters, and its working state can be automatically adjusted according to the change of time to meet the specific needs in different time periods, avoid energy waste, and save energy and protect the environment. At the same time, through precise time control, the peak operation of the equipment can also be realized to reduce the load pressure during the peak period of electricity consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the working block diagram of the medium frequency power supply of the utility model.

[0017] Figure 2 This is a schematic diagram of a clock module of the present utility model. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0019] The specific implementation process of the utility model is as follows:

[0020] like Figure 1 to Figure 2 As shown, a medium frequency power supply that can be controlled according to the current time timing includes a medium frequency power supply control system, a medium frequency power supply output circuit and a clock module. The medium frequency power supply control system is electrically connected to the medium frequency power supply output circuit, and the medium frequency power supply control system is connected to the 485 pin of the clock module for communication, so as to obtain the current time parameters in real time and perform timing according to the current time parameters, so as to control the medium frequency power supply output circuit to output current to supply the load at the preset time. Specifically, the GND pin of the medium frequency power supply control system is connected to the GND pin of the clock module, and the 5V positive pole of the medium frequency power supply control system is connected to the VIN pin of the clock module, so as to power the clock module. The medium frequency power supply control system is connected to the 485 pin of the clock module for communication to obtain the current time in real time, and can also be connected to the 231 pin to obtain the current time in real time. The medium frequency power supply control system obtains the time information of the clock module such as year, month, day, week, hour, minute, second, etc. in real time, so as to realize the timing control function according to the current time. The medium frequency power supply can automatically adjust its working state according to the time change to meet the specific needs in different time periods. Avoid energy waste, save energy and protect the environment. At the same time, through precise time control, it is also possible to achieve peak-shifting operation of equipment and reduce load pressure during peak power consumption periods. The medium frequency power supply control system obtains the time and date information of the receiving clock module through the internal clock, GPS receiver, and network time protocol NTP server. The reading frequency depends on the requirements for time accuracy, which can be read every second, every minute, or at other time intervals as required. The format of the received time and date information is converted and the time zone is adjusted to conform to the internal format used by the medium frequency power supply control system. The processed time and date information can be sent to the remote monitoring system through the communication interface RS232, RS485, and CAN bus.

[0021] In the embodiment of the utility model, the clock module is a clock pulse output module, and the model of the clock pulse output module is QD-RTC-V2. Using RS485 or RS232 communication interface, it can achieve efficient and stable communication compatibility with a variety of external devices. It also has protection measures such as anti-corrosion reverse connection of the positive and negative poles of the power supply and communication lightning strike, so that the use process is safe and stable. Support a variety of output modes, including switch signal output, PWM signal output, NPN output and open circuit output, etc., and the external device connected to it can be set to close or disconnect at a certain time, minute and second. In order to maintain the accuracy of time, the clock module needs to be synchronized with an external time source regularly. It can be manually compared with an external standard time source atomic clock or GPS regularly, and the time of the clock module can be manually adjusted. The clock calibration can also be achieved through the functions of the clock module itself to compensate for the clock drift caused by environmental factors, such as environmental factors such as temperature changes. The clock module obtains accurate time by receiving external signals and automatically adjusts its own time. The calibration frequency can be set according to specific needs to ensure the accuracy and stability of the clock module.

[0022] In an embodiment of the utility model, the medium frequency power supply is also provided with an external keyboard, which communicates data with the medium frequency power supply control system and the clock module respectively through 485 communication and an external keyboard line. Specifically, the medium frequency power supply can be remotely controlled and operated through the external keyboard. In some complex environments where it is inconvenient to contact the medium frequency power supply, it can be controlled by adding an external keyboard input to send instructions or data. 485 communication is adopted between the external keyboard and the medium frequency power supply control system, which has strong anti-interference and long transmission distance. It is connected through an external keyboard line to ensure stable data transmission. The external keyboard can also communicate data with the clock module, read the accurate time information provided by the clock module and send corresponding control instructions to the medium frequency power supply control system. The medium frequency power supply is controlled according to the current time or the preset time, and the medium frequency power supply is set to turn on or off at a specific time, or the output parameters of the power supply are adjusted within a specific time period. The data communication content between the external keyboard and the medium frequency power supply control system and the clock module may include time information, control instructions, status query, etc. The user can input information through the external keyboard, and then transmit it to the intermediate frequency power supply control system or clock module via 485 communication and the external keyboard line to achieve remote control and operation.

[0023] In an embodiment of the utility model, the medium frequency power supply output circuit includes a rectifier, a filter circuit, and an inverter. The inverter is connected to the medium frequency power supply control system, receives the output control signal of the medium frequency power supply control system, and outputs the filter to the load according to the output control signal. Specifically, the three-phase AC power supply is input to the medium frequency power supply through the R, S, and T terminals, and the rectifier converts the input AC power into DC power; the filter circuit includes a reactor or a capacitor for smoothing the rectified DC power and removing the pulsating component; the inverter is used to invert the DC power into medium frequency AC power, and the inverter controls the switching elements inside the inverter through PWM to generate AC power of the required frequency. The medium frequency AC power output by the inverter passes through the filter circuit again to further reduce harmonics and noise, provide stable output voltage and current, and is output to the load for use after receiving the output control signal of the medium frequency power supply control system.

[0024] In an embodiment of the utility model, the medium frequency power supply is also provided with a user display device, which is connected to the medium frequency power supply control system. The processed time and date information is displayed on the display screen of the user display device. The display format and user interface can be set according to user needs, so that the user can easily view and configure the time and date information, and can also monitor the power status and set necessary interactive functions as needed to meet the control needs of different users.

[0025] In an embodiment of the utility model, the medium frequency power supply is also equipped with a current and voltage protection system, which is electrically connected to the medium frequency power supply control system. Specifically, the current and voltage protection system monitors the output current and voltage of the medium frequency power supply in real time. When the output parameter exceeds the preset safety threshold, the current and voltage protection system immediately sends an alarm signal or a control signal to the medium frequency power supply control system through a signal line or a digital interface. The medium frequency power supply control system receives control instructions from the current and voltage protection system, cuts off the power supply output or reduces the output voltage or current or takes other protective measures to ensure the safe operation of the medium frequency power supply.

[0026] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A medium frequency power supply that can be controlled according to the current time, characterized in that: It includes an intermediate frequency power supply control system, an intermediate frequency power supply output circuit and a clock module. The intermediate frequency power supply control system is electrically connected to the intermediate frequency power supply output circuit. The intermediate frequency power supply control system and the clock module 485 pin are connected for communication, and the current time parameters are obtained in real time. Timing is performed according to the current time parameters, so that the intermediate frequency power supply output circuit is controlled to output current to supply the load at a preset time.

2. The medium frequency power supply capable of being controlled according to the current time according to claim 1, characterized in that: The clock module is a clock pulse output module, and the model of the clock pulse output module is QD-RTC-V2.

3. The medium frequency power supply capable of being controlled according to the current time according to claim 1, characterized in that: The intermediate frequency power supply is also provided with an external keyboard, and the external keyboard communicates with the intermediate frequency power supply control system and the clock module respectively through 485 communication and an external keyboard line.

4. The medium frequency power supply capable of being controlled according to the current time according to claim 1, characterized in that: The intermediate frequency power supply output circuit includes a rectifier, a filter circuit, and an inverter. The inverter is communicatively connected to the intermediate frequency power supply control system, receives an output control signal from the intermediate frequency power supply control system, and outputs the filter to the load according to the output control signal.

5. The medium frequency power supply capable of being controlled according to the current time according to claim 1, characterized in that: The medium frequency power supply is also provided with a user display device, which is connected to the medium frequency power supply control system to display and configure the processed time and date information.

6. The medium frequency power supply capable of being controlled according to the current time according to claim 1, characterized in that: The medium frequency power supply is also equipped with a current and voltage protection system, and the current and voltage protection system is electrically connected to the medium frequency power supply control system.

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