High-frequency power supply intelligent control system based on high-voltage voltage-sharing rectification

Abstract

The invention discloses a high-frequency power supply intelligent control system based on high-voltage voltage-sharing rectification, and the system comprises a control cabinet, a control circuit board is fixedly installed in the control cabinet, a high-frequency power supply automatic control mechanism is integrated on the control circuit board, and the current and voltage are monitored and controlled in real time through the high-frequency power supply automatic control mechanism. A ventilation opening is formed in the lower surface of the control cabinet, a cooling fan is fixedly installed in the control cabinet, the cooling fan is flush with the ventilation opening, and a fire extinguishing sealing mechanism is rotationally installed on the lower surface of the control cabinet. Through the design of the high-frequency power supply automatic control mechanism, remote monitoring and control of the system are realized, cooperative work of all components of the whole system is realized, and stable high-frequency power supply, monitoring and remote control functions are finally realized through a series of conversion, monitoring and control processes from the high-frequency power supply module.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, and in particular to an intelligent control system of a high-frequency power supply based on high-voltage equalizing rectification. Background Art

[0002] A high-frequency power supply based on high-voltage equalizing rectification is a power supply device that can generate high voltage and high frequency. This power supply is usually used in application scenarios that require high voltage, high efficiency and high stability, such as electron beam welding, plasma cutting, laser processing, etc.

[0003] For example, the patent with the national authorized patent announcement number CN217010726U discloses a power supply and a high-frequency and high-voltage rectifier device thereof, wherein the high-frequency and high-voltage rectifier device of the power supply includes a power input terminal, a rectifier module, a filter element and a voltage divider element, and the rectifier module includes at least two rectifier modules connected in series. The high-frequency and high-voltage rectifier device connects the power provided by the power input terminal in series through at least two rectifier modules connected in series, obtains a constant current voltage output after multiple rectifier modules are added in series, realizes constant current processing of the power supply, and filters and evenly processes the power output of the rectifier module again through the filter element and the voltage divider element, reduces the impact of the DC high voltage unbalanced discharge output by the rectifier module, reduces the damage to the power supply, improves the power supply efficiency, and improves the cost performance of the power supply product, laying a solid foundation for the demand for high-voltage and high-frequency power supplies, and solves the problem that the existing dust removal power supply has not been subjected to voltage equalization and constant current processing, resulting in large power loss.

[0004] However, the above-mentioned power supply and its high-frequency and high-voltage rectifier device cannot achieve constant current output when in use. The current will fluctuate due to load changes. This fluctuation will cause unstable operation of the equipment, especially in applications with strict current requirements, such as lasers, electron beam welding, etc. The unstable current will affect the quality of the final product, and the unstable current will cause increased heating of the device. Excessive heat not only damages the performance of electronic components, but may also cause thermal runaway of the power supply, reducing the reliability of the overall system. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent control system for high-frequency power supply based on high-voltage equalizing rectification to solve the problem that constant current output cannot be achieved and the current fluctuates due to load changes, which may cause unstable operation of the equipment.

[0006] To achieve the above object, the present invention provides the following technical solutions: An intelligent control system for high-frequency power supply based on high-voltage equalizing rectification comprises: a control cabinet, a control circuit board is fixedly installed in the control cabinet, a high-frequency power supply automatic control mechanism is integrated on the control circuit board, and the high-frequency power supply automatic control mechanism can automatically control the system to adjust the output according to the load change through real-time monitoring and control of current and voltage by the high-frequency power supply automatic control mechanism; Among them, a ventilation hole is opened on the lower surface of the control cabinet, and a cooling fan is fixedly installed in the control cabinet, and the cooling fan is flush with the ventilation hole. A fire extinguishing sealing mechanism is rotatably installed on the lower surface of the control cabinet, so that the fire extinguishing sealing mechanism can detect the fire source and flip the outer surface covering the ventilation hole to form a sealed environment in the control cabinet.

[0007] Preferably, a closing cover is fixedly mounted at one end of the control cabinet, a human-machine interactive touch screen is fixedly mounted on the closing cover, and the human-machine interactive touch screen is connected to the control circuit board via a communication interface, so that the human-machine interactive touch screen provides an interaction and setting interface for the user.

[0008] Preferably, the high-frequency power supply automatic control mechanism includes a high-frequency power supply module, which is fixedly mounted on one end of the control circuit board. The high-frequency power supply module is connected to the input end of the rectifier circuit through a cable, and the output of the high-frequency power supply module is connected to one end of the primary winding of the transformer. The transformer is fixedly mounted on one end of the control circuit board. The transformer can increase the voltage of the high-frequency signal, and the secondary winding of the transformer is connected to the input end of the rectifier circuit, so that it can convert the high-frequency AC into high-voltage direct current DC.

[0009] Preferably, a plurality of groups of rectifiers are fixedly mounted on one end of the control circuit board, the plurality of rectifiers are connected in parallel, and the output of each rectifier is connected to the same load, the rectifier can ensure voltage balance among the rectifier units during the rectification process, the rectifier circuit output of the rectifier is connected to the input end of the filter, and the filter is fixedly mounted on one end of the lower half of the control circuit board, and the filter can remove high-frequency ripple in direct current and improve the stability of the output voltage.

[0010] Preferably, the control circuit board is connected to a current sensor, a voltage sensor, a rectifier circuit and an output load, the current sensor and the voltage sensor are arranged between the cables between the rectifier and the filter, the signal and output ends of the current sensor and the voltage sensor are connected to the signal receiving end of the control circuit board, and the output of the rectifier circuit is connected to the output load; The models of the current sensor, voltage sensor and control circuit board are ACS758, ZMPT101B and STM32 respectively.

[0011] Preferably, the control circuit board is connected to an integrator, and the integrator is fixedly installed on one side of a control cabinet. A data acquisition module and a communication module are integrated in the integrator, so that the control circuit board is connected to the data acquisition module and the communication module for data transmission and remote monitoring.

[0012] Preferably, the data acquisition module and the communication module integrated in the integrator are enabled to collect and store system operation data, so that the control circuit board and the rectifier circuit can perform signal interaction.

[0013] Preferably, the fire extinguishing sealing mechanism includes an L-shaped plate, an electric push rod is rotatably mounted on one end of the L-shaped plate, the piston rod of the electric push rod passes through a swing opening and a connecting plate is fixedly mounted on the end, the swing opening is opened on both sides of the lower surface of the control cabinet, the connecting plate is rotatably mounted on one end of the docking plate, the docking plate is fixedly mounted on one end of the sealing plate, and the sealing plate is rotatably mounted on one end of the lower surface of the control cabinet.

[0014] Preferably, the electric push rod is controlled by a control circuit board, a signal receiving end of the control circuit board is connected to a signal transmitting end of an ion type flame sensor, and the ion type flame sensor is fixedly installed on one side of a control cabinet.

[0015] Preferably, the model of the ion type flame sensor is HFL-12.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the design of control cabinet, vents, fire extinguishing sealing mechanism and high-frequency power supply automatic control mechanism, the high-frequency power supply automatic control mechanism can automatically control the system to adjust the output according to the load change by real-time monitoring and controlling the current and voltage. This means that under different load conditions, the system can provide appropriate power output. For example, when the load increases, the high-frequency power supply automatic control mechanism can adjust the output voltage and current in time to meet the load requirements; when the load decreases, the output can also be adjusted accordingly to avoid energy waste. This intelligent control capability improves the utilization efficiency of the power supply and reduces the energy loss caused by mismatched power supply output. At the same time, it also helps to improve the operating efficiency and stability of the load equipment and extend the service life of the load equipment; Among them, the fire extinguishing sealing mechanism can detect the fire source and flip over to cover the outer surface of the vent, so that a sealed environment is formed inside the control cabinet, which can prevent external fire sources from entering the control cabinet. When a fire source occurs inside the control cabinet, this sealed environment can also prevent air from entering the control cabinet to achieve the effect of automatic fire extinguishing, avoiding direct damage to key components by fire and reducing the risk of complete paralysis of the system due to fire. Since the control cabinet contains complex circuits and control mechanisms, once affected by a fire, the repair cost is often very high, and the oxygen isolation of the fire extinguishing sealing mechanism can reduce this loss to a certain extent.

[0017] 2. Through the design of high-frequency power supply module, transformer, rectifier, filter, current sensor, voltage sensor and integrator, the high-frequency power supply module obtains electric energy from the control circuit board, converts it into high-frequency signal through the internal circuit, and then connects its output to one end of the primary winding of the transformer. According to the principle of electromagnetic induction, the primary winding of the transformer receives the high-frequency signal of the high-frequency power supply module to generate an alternating magnetic field, and the secondary winding induces electromotive force and increases the voltage, and then outputs the increased high-frequency AC to the input end of the rectifier. The rectifier is composed of multiple parallel units, and the unidirectional conductivity of the diode is used to convert the high-frequency AC into direct current. Due to its parallel structure and the coordinated effect of the control circuit board, the voltage of each unit is balanced, and then the direct current is output to the input end of the filter. The filter removes the high-frequency ripple in the direct current through the charging and discharging characteristics of the capacitor and the inductive reactance, thereby improving the stability of the output voltage; Among them, the current sensor and the voltage sensor are arranged on the cable between the rectifier and the filter. The DC signal output by the filter passes through the cable here. The current sensor (based on the Hall effect principle) and the voltage sensor (based on the voltage division principle) measure the current and voltage respectively, so that the measured current and voltage signals are connected to the signal receiving end of the control circuit board through the signal and output end, providing real-time monitoring data for the control circuit board. The control circuit board can control and adjust the entire system according to these data, and the control circuit board is connected to the integrator, so that the data acquisition module and the communication module in the integrator are connected to the control circuit board, and the system operation data including current, voltage, equipment status, etc. are collected according to a certain sampling frequency and stored in its internal storage unit, so that the communication module uses the Ethernet communication protocol to transmit the collected data to the remote monitoring device or receive remote control instructions, and at the same time realizes the signal interaction between the control circuit board and the rectifier circuit, realizes the remote monitoring and control of the system, and realizes the coordinated work of the components of the entire system, starting from the high-frequency power supply module, after a series of conversion, monitoring and control processes, finally realizes the stable high-frequency power supply, monitoring and remote control functions.

[0018] 3. Through the design of the sealing plate, electric push rod and ion type flame sensor, when there is a flame around or inside the control cabinet, the ions in the flame will change the electric field inside the ion type flame sensor, thereby generating an electrical signal. This electrical signal is sent from the signal transmitting end of the ion type flame sensor to the signal receiving end of the control circuit board as a signal for detecting the flame, which can enable the control circuit board to control the electric push rod to pull the sealing plate to flip and cover the outer surface of the vent opened on the lower surface of the control cabinet, so that a sealed environment is formed in the control cabinet, which can prevent the flame from entering the control cabinet, and the sealed control cabinet can prevent air from entering the control cabinet to achieve the effect of automatic fire extinguishing, protect the electrical components in the control cabinet from direct damage by the flame, such as avoiding circuit short circuits, component burning, etc., thereby reducing equipment damage and system failures caused by fire. The entire process is automatically controlled by the control circuit board without manual intervention, and can respond when the flame appears, improving the timeliness and accuracy of responding to fire hazards, helping to ensure the safety of the entire system in a fire environment, helping to maintain the integrity of the system, avoiding the paralysis of the entire system due to damage to individual components, reducing system failures caused by fire, and helping the system to quickly resume normal operation after a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the intelligent control system of high-frequency power supply based on high-voltage equalizing rectification of the present invention; Figure 2 It is a structural schematic diagram of the heat dissipation fan of the present invention; Figure 3 It is a structural schematic diagram of the high-frequency power supply automatic control mechanism of the present invention; Figure 4 It is a structural schematic diagram of the ion type flame sensor of the present invention; Figure 5 It is a structural schematic diagram of the vent of the present invention; Figure 6 It is a structural schematic diagram of the fire extinguishing sealing mechanism of the present invention.

[0020] In the figure: 1. control cabinet; 101. closing cover; 102. human-machine interactive touch display screen; 103. control circuit board; 104. cooling fan; 105. vent; 106. swing port; 2. fire extinguishing sealing mechanism; 201. sealing plate; 202. docking plate; 203. L-shaped plate; 204. electric push rod; 205. ion type flame sensor; 206. connecting plate; 3. high-frequency power supply automatic control mechanism; 301. high-frequency power supply module; 302. transformer; 303. rectifier; 304. filter; 305. current sensor; 306. voltage sensor; 307. integrator. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 6 , this embodiment provides the following technical solutions: like Figure 1-Figure 2 As shown, a high-frequency power intelligent control system based on high-voltage equalizing rectification includes: a control cabinet 1, a control circuit board 103 is fixedly installed in the control cabinet 1, and a high-frequency power automatic control mechanism 3 is integrated on the control circuit board 103. Through the real-time monitoring and control of current and voltage by the high-frequency power automatic control mechanism 3, the high-frequency power automatic control mechanism 3 can automatically control the system to adjust the output according to the load change; Among them, a ventilation hole 105 is opened on the lower surface of the control cabinet 1, and a cooling fan 104 is fixedly installed in the control cabinet 1. The cooling fan 104 is flush with the ventilation hole 105. A fire extinguishing sealing mechanism 2 is rotatably installed on the lower surface of the control cabinet 1, so that the fire extinguishing sealing mechanism 2 can detect the fire source and flip the outer surface covering the ventilation hole 105 to form a sealed environment in the control cabinet 1.

[0023] A closed cover 101 is fixedly installed at one end of the control cabinet 1, and a human-machine interactive touch screen 102 is fixedly installed on the closed cover 101. The human-machine interactive touch screen 102 is connected to the control circuit board 103 through a communication interface, so that the human-machine interactive touch screen 102 provides an interaction and setting interface for the user.

[0024] Through the design of the control cabinet 1, the vent 105, the fire extinguishing sealing mechanism 2 and the high-frequency power supply automatic control mechanism 3, the high-frequency power supply automatic control mechanism 3 can automatically control the system to adjust the output according to the load change by real-time monitoring and controlling the current and voltage. This means that under different load conditions, the system can provide appropriate power output. For example, when the load increases, the high-frequency power supply automatic control mechanism 3 can adjust the output voltage and current in time to meet the load demand; when the load decreases, the output can also be adjusted accordingly to avoid energy waste. This intelligent control capability improves the utilization efficiency of the power supply and reduces the energy loss caused by mismatched power supply output. At the same time, it also helps to improve the operating efficiency and stability of the load equipment and extend the service life of the load equipment. Among them, the fire extinguishing sealing mechanism 2 can detect the fire source and flip over to cover the outer surface of the vent 105, so that a sealed environment is formed in the control cabinet 1, which can prevent external fire sources from entering the control cabinet 1. When a fire source occurs inside the control cabinet 1, this sealed environment can also prevent air from entering the control cabinet 1 to achieve the effect of automatic fire extinguishing, avoid direct damage to key components by fire, and reduce the risk of complete paralysis of the system due to fire. Since the control cabinet 1 contains complex circuits and control mechanisms, once affected by a fire, the repair cost is often very high, and the oxygen isolation of the fire extinguishing sealing mechanism 2 can reduce this loss to a certain extent.

[0025] like Figure 3-Figure 4 As shown, the high-frequency power supply automatic control mechanism 3 includes a high-frequency power supply module 301, which is fixedly mounted at one end of the control circuit board 103. The high-frequency power supply module 301 is connected to the input end of the rectifier circuit through a cable. The output of the high-frequency power supply module 301 is connected to one end of the primary winding of a transformer 302. The transformer 302 is fixedly mounted at one end of the control circuit board 103. The transformer 302 can increase the voltage of the high-frequency signal. The secondary winding of the transformer 302 is connected to the input end of the rectifier circuit, so that it can convert the high-frequency AC into high-voltage direct current DC.

[0026] Multiple groups of rectifiers 303 are fixedly installed at one end of the control circuit board 103. Multiple rectifiers 303 are connected in parallel, and the output of each rectifier 303 is connected to the same load. The rectifier 303 can ensure that the voltage of each rectifier unit is balanced during the rectification process. The rectification circuit output of the rectifier 303 is connected to the input end of the filter 304. The filter 304 is fixedly installed at one end of the lower half of the control circuit board 103. The filter 304 can remove high-frequency ripples in the direct current and improve the stability of the output voltage.

[0027] The control circuit board 103 is connected to the current sensor 305, the voltage sensor 306, the rectifier circuit and the output load. The current sensor 305 and the voltage sensor 306 are arranged between the cables between the rectifier 303 and the filter 304. The signal and output ends of the current sensor 305 and the voltage sensor 306 are connected to the signal receiving end of the control circuit board 103, and the output of the rectifier circuit is connected to the output load. The models of the current sensor 305 , the voltage sensor 306 and the control circuit board 103 are ACS758, ZMPT101B and STM32 respectively.

[0028] The control circuit board 103 is connected to the integrator 307, which is fixedly installed on one side of the control cabinet 1. The integrator 307 integrates a data acquisition module and a communication module, so that the control circuit board 103 is connected to the data acquisition module and the communication module for data transmission and remote monitoring.

[0029] The data acquisition module and the communication module integrated in the integrator 307 can collect and store system operation data, and the control circuit board 103 and the rectifier circuit can perform signal interaction.

[0030] Through the design of the high-frequency power module 301, the transformer 302, the rectifier 303, the filter 304, the current sensor 305, the voltage sensor 306 and the integrator 307, the high-frequency power module 301 obtains electric energy from the control circuit board 103, converts it into a high-frequency signal through the internal circuit, and then connects its output to one end of the primary winding of the transformer 302. According to the principle of electromagnetic induction, the primary winding of the transformer 302 receives the high-frequency signal of the high-frequency power module 301 to generate an alternating magnetic field, and the secondary winding induces an electromotive force and increases the voltage, and then outputs the increased high-frequency AC to the input end of the rectifier 303. The rectifier 303 is composed of a plurality of parallel units, and the unidirectional conductivity of the diode is used to convert the high-frequency AC into direct current. Due to its parallel structure and the coordinated effect of the control circuit board 103, the voltage of each unit is balanced, and then the direct current is output to the input end of the filter 304. The filter 304 removes the high-frequency ripple in the direct current through the charging and discharging characteristics of the capacitor and the inductive reactance, thereby improving the stability of the output voltage. The current sensor 305 and the voltage sensor 306 are arranged on the cable between the rectifier 303 and the filter 304. The DC signal output by the filter 304 passes through the cable. The current sensor 305 (based on the Hall effect principle) and the voltage sensor 306 (based on the voltage division principle) measure the current and voltage respectively. The measured current and voltage signals are connected to the signal receiving end of the control circuit board 103 through the signal and output end, providing real-time monitoring data for the control circuit board 103. The control circuit board 103 can control and adjust the entire system according to these data. The control circuit board 103 is connected to the integrator 307 so that the integrator The data acquisition module and communication module in the device 307 are connected to the control circuit board 103, and the system operation data including current, voltage, equipment status, etc. are collected at a certain sampling frequency and stored in its internal storage unit, so that the communication module uses the Ethernet communication protocol to transmit the collected data to the remote monitoring device or receive remote control instructions, and at the same time realizes the signal interaction between the control circuit board 103 and the rectifier circuit, realizes the remote monitoring and control of the system, and realizes the coordinated work of various components of the entire system, starting from the high-frequency power supply module 301, after a series of conversion, monitoring and control processes, finally realizes stable high-frequency power supply, monitoring and remote control functions.

[0031] like Figure 5-Figure 6As shown, the fire extinguishing sealing mechanism 2 includes an L-shaped plate 203, one end of which is rotatably mounted with an electric push rod 204, the piston rod of the electric push rod 204 passes through the swing opening 106 and a connecting plate 206 is fixedly mounted on the end, the swing opening 106 is opened on both sides of the lower surface of the control cabinet 1, the connecting plate 206 is rotatably mounted on one end of the docking plate 202, the docking plate 202 is fixedly mounted on one end of the sealing plate 201, and the sealing plate 201 is rotatably mounted on one end of the lower surface of the control cabinet 1.

[0032] The electric push rod 204 is controlled by the control circuit board 103 . The signal receiving end of the control circuit board 103 is connected to the signal transmitting end of the ion type flame sensor 205 . The ion type flame sensor 205 is fixedly installed on one side of the control cabinet 1 .

[0033] The model of the ion type flame sensor 205 is HFL-12.

[0034] Through the design of the sealing plate 201, the electric push rod 204 and the ion type flame sensor 205, when a flame is generated around or inside the control cabinet 1, the ions in the flame will cause the electric field inside the ion type flame sensor 205 to change, thereby generating an electrical signal. This electrical signal is sent from the signal transmitting end of the ion type flame sensor 205 to the signal receiving end of the control circuit board 103 as a signal of detecting the flame, so that the control circuit board 103 can control the electric push rod 204 to pull the sealing plate 201 to flip and cover the outer surface of the vent 105 opened on the lower surface of the control cabinet 1, so that a sealed environment is formed in the control cabinet 1, which can prevent the flame from entering the interior of the control cabinet 1, and the sealed control cabinet 1 Air can be prevented from entering the interior of the control cabinet 1 to achieve the effect of automatic fire extinguishing, and the electrical components in the control cabinet 1 can be protected from direct damage by the flame, such as avoiding circuit short circuits, component burning, etc., thereby reducing equipment damage and system failures caused by fire. The entire process is automatically controlled by the control circuit board 103 and does not require human intervention. It can respond when the flame appears, thereby improving the timeliness and accuracy of responding to fire hazards, helping to ensure the safety of the entire system in a fire environment, helping to maintain the integrity of the system, avoiding paralysis of the entire system due to damage to individual components, reducing system failures caused by fire, and helping the system to quickly resume normal operation after a fire.

[0035] The working steps of this scheme are summarized and sorted out according to the above technical scheme: the high-frequency power supply module 301 obtains electric energy from the control circuit board 103, converts it into a high-frequency signal through the internal circuit, and then connects its output to one end of the primary winding of the transformer 302. According to the principle of electromagnetic induction, the primary winding of the transformer 302 receives the high-frequency signal of the high-frequency power supply module 301 to generate an alternating magnetic field, and the secondary winding induces an electromotive force and increases the voltage, and then outputs the increased high-frequency AC to the input end of the rectifier 303. The rectifier 303 is composed of a plurality of parallel units, and the unidirectional conductivity of the diode is used to convert the high-frequency AC into direct current. Due to its parallel structure and the synergistic effect of the control circuit board 103, the voltage of each unit is balanced, and then the direct current is output to the input end of the filter 304. The filter 304 removes the high-frequency ripple in the direct current through the charging and discharging characteristics of the capacitor and the inductive reactance, thereby improving the stability of the output voltage; The current sensor 305 and the voltage sensor 306 are arranged on the cable between the rectifier 303 and the filter 304. The DC signal output by the filter 304 passes through the cable here. The current sensor 305 (based on the Hall effect principle) and the voltage sensor 306 (based on the voltage division principle) measure the current and voltage respectively, so that the measured current and voltage signals are connected to the signal receiving end of the control circuit board 103 through the signal and output end, providing real-time monitoring data for the control circuit board 103. The control circuit board 103 can control and adjust the entire system according to these data, and the control circuit board 103 is connected to the integrator 307, so that the data acquisition module and the communication module in the integrator 307 are connected to the control circuit board 103, and the system operation data including current, voltage, equipment status, etc. are collected according to a certain sampling frequency and stored in its internal storage unit, so that the communication module uses the Ethernet communication protocol to transmit the collected data to the remote monitoring device or receive the remote control command, and at the same time realize the signal interaction between the control circuit board 103 and the rectifier circuit; And when a flame is generated around or inside the control cabinet 1, the ions in the flame will cause the electric field inside the ion type flame sensor 205 to change, thereby generating an electrical signal. This electrical signal is sent from the signal transmitting end of the ion type flame sensor 205 to the signal receiving end of the control circuit board 103 as a signal of detecting the flame, which can enable the control circuit board 103 to control the electric push rod 204 to pull the sealing plate 201 to flip and cover the outer surface of the vent 105 opened on the lower surface of the control cabinet 1, so that a sealed environment is formed in the control cabinet 1, which can prevent the flame from entering the interior of the control cabinet 1, and the sealed control cabinet 1 can prevent air from entering the interior of the control cabinet 1, thereby realizing the function of automatic fire extinguishing.

[0036] In summary: remote monitoring and control of the system is achieved, and the coordinated work of all components of the entire system is achieved. Starting from the high-frequency power supply module 301, after a series of conversion, monitoring and control processes, stable high-frequency power supply, monitoring and remote control functions are finally achieved. In addition, when a flame is generated around or inside the control cabinet 1, the inside of the control cabinet 1 is sealed, which helps to maintain the integrity of the system, avoid paralysis of the entire system due to damage to individual components, reduce system failures caused by fire, and help the system to quickly resume normal operation after a fire.

[0037] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent control system for high-frequency power supply based on high-voltage equalizing rectification, characterized in that: include: A control cabinet (1), wherein a control circuit board (103) is fixedly mounted in the control cabinet (1), and a high-frequency power supply automatic control mechanism (3) is integrated on the control circuit board (103), and the high-frequency power supply automatic control mechanism (3) automatically controls the output of the control system according to load changes by real-time monitoring and controlling current and voltage by the high-frequency power supply automatic control mechanism (3); The control cabinet (1) has a ventilation opening (105) on its lower surface, a heat dissipation fan (104) is fixedly installed in the control cabinet (1), the heat dissipation fan (104) is flush with the ventilation opening (105), and a fire extinguishing sealing mechanism (2) is rotatably installed on the lower surface of the control cabinet (1), so that the fire extinguishing sealing mechanism (2) can detect a fire source and flip over the outer surface covering the ventilation opening (105) to form a sealed environment in the control cabinet (1).

2. According to claim 1, a high-frequency power supply intelligent control system based on high-voltage equalizing rectification is characterized in that: A closed cover (101) is fixedly mounted on one end of the control cabinet (1), and a human-machine interactive touch display screen (102) is fixedly mounted on the closed cover (101). The human-machine interactive touch display screen (102) is connected to a control circuit board (103) via a communication interface, so that the human-machine interactive touch display screen (102) provides an interaction and setting interface for a user.

3. According to claim 1, a high-frequency power supply intelligent control system based on high-voltage equalizing rectification is characterized in that: The high-frequency power supply automatic control mechanism (3) comprises a high-frequency power supply module (301), the high-frequency power supply module (301) is fixedly mounted on one end of the control circuit board (103), the high-frequency power supply module (301) is connected to the input end of the rectifier circuit via a cable, the output of the high-frequency power supply module (301) is connected to one end of the primary winding of a transformer (302), the transformer (302) is fixedly mounted on one end of the control circuit board (103), the transformer (302) is capable of increasing the voltage of a high-frequency signal, and the secondary winding of the transformer (302) is connected to the input end of the rectifier circuit, so that it can convert high-frequency AC into high-voltage direct current DC.

4. According to claim 3, a high-frequency power supply intelligent control system based on high-voltage equalizing rectification is characterized in that: A plurality of rectifiers (303) are fixedly mounted on one end of the control circuit board (103); the plurality of rectifiers (303) are connected in parallel, and the output of each rectifier (303) is connected to the same load; the rectifier (303) can ensure that the voltage of each rectifier unit is balanced during the rectification process; the rectification circuit output of the rectifier (303) is connected to the input end of a filter (304); the filter (304) is fixedly mounted on one end of the lower half of the control circuit board (103); the filter (304) is used to remove high-frequency ripples in direct current and improve the stability of the output voltage.

5. According to claim 4, a high-frequency power supply intelligent control system based on high-voltage equalizing rectification is characterized in that: The control circuit board (103) is connected to a current sensor (305), a voltage sensor (306), a rectifier circuit and an output load; the current sensor (305) and the voltage sensor (306) are arranged between cables between the rectifier (303) and the filter (304); the signal and output ends of the current sensor (305) and the voltage sensor (306) are connected to the signal receiving end of the control circuit board (103); and the output of the rectifier circuit is connected to the output load.

6. The intelligent control system of high-frequency power supply based on high-voltage equalizing rectification according to claim 5 is characterized in that: The control circuit board (103) is connected to an integrator (307), and the integrator (307) is fixedly mounted on one side of the control cabinet (1). A data acquisition module and a communication module are integrated in the integrator (307), so that the control circuit board (103) is connected to the data acquisition module and the communication module to perform data transmission and remote monitoring.

7. The intelligent control system of high-frequency power supply based on high-voltage equalizing rectification according to claim 6 is characterized in that: The data acquisition module and the communication module integrated in the integrator (307) are capable of collecting and storing system operation data, so that the control circuit board (103) and the rectifier circuit can perform signal interaction.

8. The intelligent control system of high-frequency power supply based on high-voltage equalizing rectification according to claim 1 is characterized in that: The fire extinguishing sealing mechanism (2) comprises an L-shaped plate (203), one end of which is rotatably mounted with an electric push rod (204), the piston rod of the electric push rod (204) passes through a swing opening (106) and a connecting plate (206) is fixedly mounted at the end thereof, the swing opening (106) is provided on both sides of the lower surface of the control cabinet (1), the connecting plate (206) is rotatably mounted on one end of a docking plate (202), the docking plate (202) is fixedly mounted on one end of a sealing plate (201), and the sealing plate (201) is rotatably mounted on one end of the lower surface of the control cabinet (1).

9. The intelligent control system of high-frequency power supply based on high-voltage equalizing rectification according to claim 8 is characterized in that: The electric push rod (204) is controlled by a control circuit board (103); a signal receiving end of the control circuit board (103) is connected to a signal transmitting end of an ion type flame sensor (205); and the ion type flame sensor (205) is fixedly mounted on one side of the control cabinet (1).

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