A driving device with intelligent early warning function for high-frequency power supply

Abstract

The utility model discloses a kind of driving devices with intelligent early warning function for high-frequency power supply, it is related to the technical field of high-frequency power supply of electric dust collector, including main control unit, driving unit, IGBT module, intelligent early warning module;The utility model is precisely adapted to the characteristics of company power supply product by the driving unit of independent design, gives full play to equipment performance, significantly improves the overall stability of high-frequency power supply, ensures that it can still be efficient, stable operation under complex working conditions;IGBT module is directly welded on driving unit, and the structural reliability of high-frequency power supply is enhanced;The working state of IGBT can be rapidly and accurately found potential failure by real-time monitoring of intelligent early warning module, and early warning signal is sent in time;The maintenance difficulty and cost of the equipment are also reduced by the early warning function, maintenance personnel can quickly locate the problem according to early warning information, reduce the time of checking fault, shorten shutdown maintenance cycle, improve the maintenance convenience of equipment, further improve the comprehensive performance of equipment.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency power supply technology for electrostatic precipitators, specifically a drive device with intelligent early warning function for high-frequency power supplies. Background Technology

[0002] In the field of high-frequency power supplies for electrostatic precipitators, existing high-frequency power supply products generally suffer from the following problems: On the one hand, the design of the drive unit in most high-frequency power supplies produced by manufacturers relies on external procurement, such as purchasing the CONCEPT 2SP0115 series drive or other domestic drives, lacking the ability to independently develop drive units suitable for their own products. This not only limits the innovation of products but also increases costs. On the other hand, existing high-frequency power supplies lack an effective intelligent early warning mechanism during operation, and cannot provide timely and accurate feedback on the working status of key components such as IGBTs. Once a fault occurs, it often leads to equipment shutdown or even damage, affecting the stability and reliability of the equipment.

[0003] In existing high-frequency power supplies for electrostatic precipitators, most manufacturers only design the control system, relying heavily on purchased drive units, such as the CONCEPT 2SP0115 series drive or other domestically produced drives, lacking independently developed drive units. This reliance on purchases presents several problems: firstly, purchased drive units may not be fully compatible with the characteristics of the power supply product, affecting the overall performance; secondly, the drive unit design cannot be adjusted and optimized in a timely manner according to the evolving needs of the power supply product, limiting product innovation and upgrades. Furthermore, existing high-frequency power supplies lack adequate monitoring and early warning functions for the operating status of critical components such as IGBTs during operation. If an IGBT malfunctions, the inability to provide timely and accurate feedback and take appropriate measures can easily lead to equipment failure or even damage, affecting the normal operation of the electrostatic precipitator and increasing maintenance costs and downtime. Utility Model Content

[0004] The purpose of this utility model is to provide a drive device with intelligent early warning function for high-frequency power supplies, so as to solve the problem mentioned in the background art that existing high-frequency power supplies lack an effective intelligent early warning mechanism during operation, and cannot provide timely and accurate feedback on the working status of key components such as IGBTs. Once a fault occurs, it often leads to equipment shutdown or even damage, affecting the stability and reliability of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-frequency power supply drive device with intelligent early warning function. The drive device is designed as a circuit board, including a main control unit, a drive unit, and an IGBT module mounted on the circuit board. The main control unit is equipped with an intelligent early warning module. The main control unit includes a high-performance microprocessor and a memory for rapidly processing various signals and data. The microprocessor outputs two drive signals to the drive unit. The drive unit includes a drive unit interface, an optocoupler isolation module, a logic operation chip, and two drive signal amplification modules connected in sequence. The two drive signal amplification modules are connected to the IGBT module. The drive unit interface is also connected in sequence to a power management module and a clock module, which in turn connect to the two drive signal amplification modules. The fault signal of the IGBT module is connected to the logic operation chip through the drive chip module. The logic operation chip is connected to the main control unit via a bypass through the fault signal amplification module and the drive unit interface.

[0006] Preferably, the drive unit interface includes two drive signal transmission interfaces for receiving signals from the microprocessor and transmitting them to the optocoupler isolation module, one power transmission interface for connecting to the power supply and connecting the power supply to the power management module, and one fault signal transmission interface for receiving signals from the fault signal amplification module and feeding the signals back to the microprocessor.

[0007] Preferably, the drive unit interface adopts a 3.5mm pluggable PCB straight pin terminal.

[0008] Preferably, the IGBT module is a dual-tube IGBT.

[0009] Preferably, the intelligent early warning module is located in the main control unit and connected to the fault signal transmission interface of the drive unit.

[0010] Preferably, the intelligent early warning module can store alarm information and related data in the memory of the main control unit.

[0011] Preferably, the circuit board adopts a multi-layer design, and the drive unit adopts a structure in which IGBTs are directly soldered onto the module.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through its independently designed drive unit, precisely adapts to the characteristics of the company's power supply products, fully utilizes the equipment performance, significantly improves the overall stability of the high-frequency power supply, and ensures that it can still operate efficiently and stably under complex working conditions; the IGBT module is directly soldered onto the drive unit, reducing connection points and effectively reducing the risk of failure caused by external factors such as loose connections and poor contact, enhancing the structural reliability of the high-frequency power supply, extending the service life of the equipment, and ensuring its long-term stable operation;

[0014] 2. The intelligent early warning module of this utility model monitors the working status of IGBTs in real time, can quickly and accurately detect potential faults, and issue early warning signals in a timely manner to remind maintenance personnel to take measures in advance to avoid downtime and damage caused by sudden equipment failures, thus significantly improving the operational safety of the equipment. This early warning function also reduces the difficulty and cost of equipment maintenance. Maintenance personnel can quickly locate problems based on early warning information, reduce the time spent troubleshooting, shorten downtime maintenance cycles, improve the convenience of equipment maintenance, and further enhance the overall performance of the equipment.

[0015] 3. This utility model adopts a low-cost electrical interface method and combines it with a self-designed drive unit, which significantly reduces the overall system cost. While ensuring equipment performance and quality, it improves the product's cost-effectiveness and enhances its competitiveness in the market, providing users with a more cost-effective high-frequency power supply solution. The circuit uses optocouplers and other chips, which not only achieve signal gain compensation but also have a complete error correction function, further optimizing the signal processing process and ensuring the reliability and accuracy of signal transmission, providing strong support for reducing system costs.

[0016] 4. The drive unit interface adopts a 3.50mm pluggable PCB straight pin terminal. This design ensures the firmness and stability of the connection, and the plugging and unplugging operation is convenient and quick, which facilitates the installation, debugging and maintenance of the equipment, and further improves the practicality and reliability of the equipment.

[0017] In summary, this utility model, through its independently designed drive unit and intelligent early warning system, comprehensively improves the performance, reliability, and maintenance convenience of high-frequency power supplies, while effectively reducing system costs. It has significant innovation and practicality, and can provide strong support for the development of the high-frequency power supply field. Attached Figure Description

[0018] Figure 1 This is a logic block diagram of the present invention;

[0019] In the diagram: Main control unit-1, microprocessor-11, drive unit-2, drive unit interface-21, optocoupler isolation module-22, power management module-23, fault signal amplification module-24, logic operation chip-25, drive signal amplification module-26, clock module-27, IGBT module-3, drive chip module-31, intelligent early warning module-4. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0021] This utility model provides a high-frequency power supply with an intelligent early warning function. The drive device is designed as a circuit board, which makes it easier to install and use while ensuring that the drive device occupies less space. It includes a main control unit 1, a drive unit 2 and an IGBT module 3 set on the circuit board. The main control unit 1 is equipped with an intelligent early warning module 4.

[0022] The main control unit 1 includes a high-performance microprocessor 11 for rapidly processing various signals and data, and a memory. The microprocessor 11 outputs two drive signals to the drive unit 2.

[0023] The driving unit 2 includes a driving unit interface 21, which includes two driving signal transmission interfaces for receiving signals from the microprocessor 11 and transmitting them to the optocoupler isolation module 22, one power transmission interface for connecting to a power supply and connecting the power supply to the power management module 23, and one fault signal transmission interface for receiving signals from the fault signal amplification module 24 and feeding the signals back to the microprocessor 11. The optocoupler isolation module 22 performs opto-isolation on the received driving signals to remove noise and compensate for the signals, ensuring the driving signals are complete. Then, it transmits the complete driving signals to the logic operation chip 25 through two signal outputs. The computing chip 25 compares and calculates two complete drive signals. If the drive signals are correct, it outputs both drive signals to the two drive signal amplification modules 26 respectively. If the drive signals are incorrect, it does not output them, thus avoiding damage to the IGBT module from erroneous signals. The two drive signal amplification modules 26 amplify the two correct and complete drive signals respectively. The amplified drive signals enter the gate of the IGBT module 3 together, driving the IGBT module 3 to work normally. The power management module 23 is connected to the two drive signal amplification modules 26 through the clock module 27 to provide them with power support.

[0024] The IGBT module 3 is a dual-tube IGBT, directly soldered onto the drive unit, ensuring a reliable and stable structure, reducing connection points, and lowering the failure rate. The IGBT module 3 has a sampling signal connected to the logic operation chip 25. When the IGBT module 3 malfunctions, it sends a fault signal to the drive chip module 31. The drive chip module 31 isolates the received fault signal and transmits it to the logic operation chip 25. The logic operation chip 25 then transmits the received fault signal to the fault signal amplification module 24. The fault signal amplification module 24 amplifies the fault signal and transmits it via the drive unit interface 21 to the microprocessor 11 of the main control unit 1. Finally, the main control unit issues an alarm based on the feedback signal to promptly detect and handle abnormalities in the IGBT module.

[0025] The intelligent early warning module 4 is installed in the main control unit 1 and connected to the fault signal transmission interface of the drive unit interface 21. The intelligent early warning module can monitor the working status of the IGBT in real time, including but not limited to parameters such as temperature, current, and voltage, and make judgments based on preset thresholds. When the working parameters of the IGBT are detected to be outside the normal range or an abnormal situation occurs, the intelligent early warning module can make a quick judgment and issue an alarm signal through an audible and visual alarm device to remind the operator to take timely measures.

[0026] The intelligent early warning module 4 can also store alarm information and related data in the memory of the main control unit 1, which facilitates subsequent fault diagnosis and analysis and provides strong support for equipment maintenance and management.

[0027] The circuit board adopts a multi-layer design, optimizes wiring, reduces electromagnetic interference, and improves the stability and reliability of signal transmission. The drive unit adopts a structure in which IGBTs are directly soldered onto the module. This structural design makes the entire drive unit structure more reliable and stable, reduces the risk of failure due to factors such as loose connections, and improves the operational stability of the high-frequency power supply. The drive unit interface 21 adopts a 3.50mm pluggable PCB straight pin terminal. The interface definition meets the technical requirements of the company's high-frequency power supply products and has a snap-fit ​​function to ensure the firmness and stability of the connection.

[0028] The drive unit uses a self-designed circuit board. Two drive signals are directly output from the main control unit to the drive unit interface. After photoelectric isolation, signal compensation, and logic operations, the signals are output to the gate of the IGBT module, enabling the IGBT to operate normally. Simultaneously, the intelligent early warning module monitors the IGBT's operating status in real time. When an abnormality is detected, it immediately issues an early warning signal and alerts the main control unit. Through this design, the intelligent early warning high-frequency power supply of this invention achieves efficient, stable, and reliable operation, meeting the application requirements in the field of high-frequency power supplies for electrostatic precipitators.

[0029] In practical applications, the intelligent early warning high-frequency power supply of this invention can be customized and configured according to the specific needs of the electrostatic precipitator. The main control unit outputs corresponding drive signals to the drive unit based on the operating parameters and control requirements of the electrostatic precipitator. The drive unit processes and amplifies the drive signals, then drives the IGBT module to operate, realizing the output function of the high-frequency power supply. Simultaneously, the intelligent early warning module monitors the operating status of the IGBT in real time. Once an abnormality is detected, an alarm signal is immediately issued to remind operators to handle the situation promptly, ensuring the stable and reliable operation of the high-frequency power supply.

[0030] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. A drive device with intelligent early warning function for high-frequency power supplies, characterized in that: The drive device is designed as a circuit board, including a main control unit (1), a drive unit (2), and an IGBT module (3) mounted on the circuit board. The main control unit (1) is equipped with an intelligent early warning module (4). The main control unit (1) includes a high-performance microprocessor (11) and a memory for rapidly processing various signals and data. The microprocessor (11) outputs two drive signals to the drive unit (2). The drive unit (2) includes a drive unit interface (21), an optocoupler isolation module (22), a logic operation chip (25), and two drive modules connected in sequence. The two drive signal amplification modules (26) are connected to the IGBT module (3). The drive unit interface (21) is also connected to the power management module (23) and the clock module (27) in sequence, and then to the two drive signal amplification modules (26). The fault signal of the IGBT module (3) is connected to the logic operation chip (25) through the drive chip module (31). The logic operation chip (25) is connected to the main control unit (1) through the fault signal amplification module (24) and the drive unit interface (21) via a bypass.

2. The high-frequency power supply drive device with intelligent early warning function according to claim 1, characterized in that: The drive unit interface (21) includes two drive signal transmission interfaces for receiving the microprocessor (11) and transmitting it to the optocoupler isolation module (22), one power transmission interface for connecting to the power supply and connecting the power supply to the power management module (23), and one fault signal transmission interface for receiving the fault signal amplification module (24) and feeding its signal back to the microprocessor (11).

3. The high-frequency power supply drive device with intelligent early warning function according to claim 2, characterized in that: The drive unit interface (21) adopts a 3.5mm pluggable PCB straight pin terminal.

4. The high-frequency power supply drive device with intelligent early warning function according to claim 3, characterized in that: The IGBT module (3) is a dual-tube IGBT.

5. The high-frequency power supply drive device with intelligent early warning function according to claim 4, characterized in that: The intelligent early warning module (4) is located in the main control unit (1) and connected to the fault signal transmission interface of the drive unit interface (21).

6. The high-frequency power supply drive device with intelligent early warning function according to claim 5, characterized in that: The intelligent early warning module (4) can store alarm information and related data in the memory of the main control unit (1).

7. The high-frequency power supply drive device with intelligent early warning function according to claim 6, characterized in that: The circuit board adopts a multi-layer design, and the drive unit (2) adopts a structure in which IGBTs are directly soldered onto the module.

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