High voltage generator, power supply control system of high voltage generator and power supply management method

Abstract

The invention provides a high-voltage generator, a power supply control system of the high-voltage generator and a power supply management method. The high-voltage generator comprises a rectification module, a flyback conversion module, a capacitor module, an inversion module, a discharge module, a control module and a high-voltage oil tank. The control module communicates with an external host and judges the communication condition between the control module and the external host in real time: when the communication is in a normal state, the control module sends a charging control signal to the flyback conversion module, and the high-voltage generator works normally; when communication is abnormal and interrupted, the control module sends a discharging control signal to the discharging module, the capacitor module and the inverter module of the high-voltage generator discharge, the breakdown risk of capacitors and power devices in the high-voltage generator is avoided, and therefore the high-voltage generator can work normally, and potential safety hazards of the high-voltage generator can be eliminated. In addition, the device has the advantages of safety, energy conservation, simple structure and easiness in implementation.

Description

Technical Field

[0001] The present invention relates to the field of power management, and in particular to a high voltage generator, a power control system of the high voltage generator and a power management method. Background Art

[0002] In daily electricity usage scenarios, high-voltage generators are relatively common devices, that is, the application field of high-voltage generators is very wide. High-voltage generators can play the role of voltage conversion, impedance matching and harmonic suppression in alternating current. Among them, the basic principle of high-voltage generators is to use electromagnetic induction between the primary coil and the secondary coil to achieve voltage conversion.

[0003] Since the voltage inside the high-voltage generator is relatively high, when a high-voltage generator fails, it is easy to pose a great threat to the personal safety of the operator. In order to ensure the safety of the operator, the high-voltage generator usually has a variety of protection structures and protection measures. For example, a ground wire needs to be connected inside the high-voltage generator, etc. However, the existing high-voltage generator still has a variety of safety hazards. Therefore, how to eliminate the safety hazards inside the high-voltage generator while ensuring that the operator does not directly contact the high-voltage generator has become one of the problems that technical personnel in this field need to solve urgently.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present invention and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the present invention. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a high voltage generator, a power control system of the high voltage generator and a power management method, so as to solve the problem that it is difficult to eliminate the potential safety hazards in the high voltage generator in the prior art.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides a high-voltage generator, a high-voltage generator, the high-voltage generator at least comprising: a rectifier module, a flyback conversion module, a capacitor module, an inverter module, a discharge module, a control module and a high-voltage oil tank; the rectifier module, the flyback conversion module, the capacitor module, the inverter module and the high-voltage oil tank are cascaded in sequence; the rectifier module converts an external AC power supply into a DC power supply; the first end of the rectifier module outputs DC power, and the second end is grounded; the flyback conversion module receives the DC power output by the rectifier module and performs voltage conversion; one end of the capacitor module is connected to the output end of the flyback conversion module, and the other end is connected to the ground; The inverter module converts the DC power on the capacitor module into AC power; the high-voltage oil tank receives the AC power output by the inverter module; one end of the discharge module is connected to the output end of the flyback conversion module, and the other end is grounded; the input end of the control module communicates with the external host, the first output end is connected to the control end of the flyback conversion module, and the second output end is connected to the control end of the discharge module; the control module detects the communication status between the external host and the high-voltage generator in real time, and provides a charging control signal to the flyback conversion module when the communication is normal, and provides a discharge control signal to the discharge module when the communication is abnormally interrupted.

[0007] Optionally, the flyback conversion module includes a primary coil, a first NMOS tube, a first resistor, a secondary coil and a first diode; one end of the primary coil is connected to the first end of the rectifier module, and the other end is connected to the drain of the first NMOS tube; the source of the first NMOS tube is connected to the first end of the first resistor, and the gate serves as the control end of the flyback conversion module; the second end of the first resistor is connected to the second end of the rectifier module; one end of the secondary coil is grounded, and the other end is connected to the anode of the first diode; the cathode of the first diode serves as the output end of the flyback conversion module.

[0008] Optionally, the high-voltage generator further includes a first capacitor, one end of which is connected to the first end of the rectifier module, and the other end of which is connected to the second end of the rectifier module.

[0009] Optionally, the discharge module includes a second NMOS tube and a second resistor, and the second NMOS tube is connected in series with the second resistor; and a gate of the second NMOS tube serves as a control terminal of the discharge module.

[0010] Optionally, the control module includes a first control unit and a second control unit; the first end of the first control unit communicates with an external host, and the second end is connected to an input end of the second control unit; the first control unit outputs instructions to the second control unit by judging the communication status between the first control unit and the external host; the first output end of the second control unit is connected to the control end of the flyback conversion module, and the second output end is connected to the control end of the discharge module; based on the instructions of the first control unit, the second control unit provides a charging control signal to the flyback conversion module when the communication is in a normal state, and provides a discharge control signal to the discharge module when the communication is abnormally interrupted.

[0011] To achieve the above-mentioned purpose and other related purposes, the present invention also provides a power supply control system for a high-voltage generator, the power supply control system for the high-voltage generator comprising an external host and the high-voltage generator; the external host communicates with the high-voltage generator and outputs instructions to the high-voltage generator; the high-voltage generator determines the communication status between the external host in real time, and provides a charging control signal to a flyback conversion module when the communication is in a normal state, and provides a discharge control signal to a discharge module when the communication is abnormally interrupted; the external host is installed outside the high-voltage working room, and the high-voltage generator is installed inside the high-voltage working room.

[0012] To achieve the above-mentioned purpose and other related purposes, the present invention also provides a power management method, which is implemented based on the high-voltage generator, and the power management method at least includes the following steps: S1: detecting the communication status between the high-voltage generator and the external host; S2: when the communication between the high-voltage generator and the external host is in a normal state, the flyback conversion module receives a charging control signal, and the high-voltage generator is in a standby state; when the communication between the high-voltage generator and the external host is abnormally interrupted, the discharge module receives a discharge control signal, and the high-voltage generator enters a sleep state.

[0013] Optionally, in step S1, when the loss of connection time of the communication signal between the high voltage generator and the external host is greater than the target time, the communication status is determined to be an abnormal interruption; when the loss of connection time of the communication signal between the high voltage generator and the external host is less than or equal to the target time, the communication status is determined to be normal.

[0014] More optionally, the target time is from 1 minute to 600 minutes.

[0015] More optionally, the communication signal is a tube heat capacity signal or a communication heartbeat signal between the high voltage generator and the external host.

[0016] As described above, the high voltage generator, the power supply control system and the power supply management method of the high voltage generator of the present invention have the following beneficial effects:

[0017] 1. The present invention is provided with a control module, which determines the communication status between the high-voltage generator and the external host in real time, and outputs a charging control signal and a discharging control signal according to the communication status; therefore, the present invention can make the high-voltage generator enter a standby state when the communication is normal, and enter a dormant state when the communication is abnormally interrupted, thereby avoiding the risk of breakdown of the high-voltage generator.

[0018] 2. The present invention can timely and accurately know the communication status between the high-voltage generator and the external host by real-time determining the disconnection time of the communication signal between the high-voltage generator and the external host. Therefore, the present invention can timely and accurately realize the power supply control of the high-voltage generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It shows a first structural schematic diagram of the high voltage generator of the present invention.

[0020] Figure 2 It shows a first structural schematic diagram of the high voltage generator of the present invention.

[0021] Figure 3 Shown is a structural schematic diagram of the control module of the present invention.

[0022] Figure 4 Shown is a structural schematic diagram of a power supply control system of a high voltage generator of the present invention.

[0023] Figure 5 Shown is a flow chart of the power management method of the present invention.

[0024] Component number description

[0025] 1 High voltage generator

[0026] 11 Rectifier module

[0027] 12 Flyback Converter Module

[0028] 1a Primary coil

[0029] 1b The first NMOS tube

[0030] 1c Secondary coil

[0031] 1d First diode

[0032] 1e First resistor

[0033] 13 Capacitor Module

[0034] 14 Inverter module

[0035] 15 Discharge module

[0036] 1f The second NMOS tube

[0037] 1g Second resistor

[0038] 16 Control Module

[0039] 1h First control unit

[0040] 1i Second control unit

[0041] 17 High pressure oil tank

[0042] 18 First capacitor

[0043] 19 Resonance Module

[0044] 1j First resonant coil

[0045] 1k resonant capacitor

[0046] 1m Second resonant coil

[0047] 2 External Host DETAILED DESCRIPTION

[0048] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0049] See also Figure 1-Figure 5 It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, and the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0050] In the field of high-voltage generators, high-voltage generators are used to provide high voltage for electronic devices. In order to ensure personnel safety, high-voltage generators are usually installed in high-voltage workrooms, and external host computers are usually installed outside high-voltage workrooms. Workers can operate the external host computers outside the workrooms to manipulate the high-voltage generators. Therefore, after finishing work each time, workers are accustomed to only cutting off the power supply of the external host computer. However, after the external host computer is turned off, the external AC power supply in the high-voltage workroom is still supplying energy to the high-voltage generator. Over time, the internal circuits of the high-voltage generators are under high voltage for a long time, and may cause the internal components of the high-voltage generators to break down, causing safety hazards. In order to eliminate the safety hazards of the internal circuits of the high-voltage generator, this embodiment provides a high-voltage generator, a power control system of the high-voltage generator, and a power management method. The specific scheme is as follows:

[0051] Embodiment 1

[0052] like Figure 1 As shown, this embodiment provides a high-voltage generator 1, which includes: a rectifier module 11, a flyback conversion module 12, a capacitor module 13, an inverter module 14, a discharge module 15, a control module 16 and a high-voltage oil tank 17.

[0053] like Figure 1 As shown, the rectifier module 11, the flyback conversion module 12, the capacitor module 13, the inverter module 14 and the high-pressure oil tank 17 are cascaded in sequence.

[0054] Specifically, in this embodiment, when the rectifier module 11, the flyback conversion module 12, the capacitor module 13, the inverter module 14, and the high-voltage oil tank 17 are sequentially cascaded, the rectifier module 11 first converts the AC power into DC power, the flyback conversion module 12 then performs voltage conversion on the DC power, and then the capacitor module 13 is used to store the electric energy of the DC power, and finally the inverter module 14 converts the smoothed DC power into AC power, and the high-voltage oil tank 17 receives the AC power output by the inverter module and applies it. Therefore, the high-voltage generator 1 can smoothly complete the workflow of high-voltage conversion.

[0055] like Figure 1 As shown, the rectifier module 11 converts the external AC power into DC power. The first end of the rectifier module 11 outputs DC power, and the second end is grounded.

[0056] Specifically, in this embodiment, Figure 1As shown, the rectifier module 11 is a full-bridge rectifier structure, and the two rectifier components of the rectifier module 11 are connected in parallel; one power line of the external AC power source is connected between the two rectifier elements of one rectifier component, and the other power line is connected between the two rectifier elements of the other rectifier component. Further, the rectifier module 11 can rectify the AC power of the external AC power source into DC power, that is, the electrical signal output by the rectifier module 11 is a DC signal. In practical applications, any circuit structure that can realize the conversion of AC power into DC power is applicable to the rectifier module 11 of the present invention, and is not limited to this embodiment.

[0057] like Figure 1 As shown, the flyback conversion module 12 receives the direct current output by the rectifier module 11 and performs voltage conversion.

[0058] Specifically, in this embodiment, the flyback conversion module 12 receives the output of the rectifier module 11, and the flyback conversion module 12 can perform voltage conversion on the DC power output by the rectifier module 11; Figure 1 As shown, the flyback conversion module 12 may include a primary coil 1a, a first NMOS transistor 1b, a secondary coil 1c, a first diode 1d and a first resistor 1e. Further, one end of the primary coil 1a is connected to the first end of the rectifier module 11, the other end of the primary coil 1a is connected to the drain of the first NMOS transistor 1b, the source of the first NMOS transistor 1b is connected to the first end of the first resistor 1e, the gate of the first NMOS transistor 1b serves as the control end of the flyback conversion module 12, and the second end of the first resistor 1e is connected to the second end of the rectifier module 11. Further, one end of the secondary coil 1c is grounded, and the other end is connected to the anode of the first diode 1d, and the cathode of the first diode 1d serves as the output end of the flyback conversion module 12; wherein, the voltage phases of the primary coil 1a and the secondary coil 1c are opposite. In summary, when the first NMOS tube 1b is turned on, electric energy is stored in the primary coil 1a, and the first diode 1d is in a reverse cut-off state; when the first NMOS tube 1b is turned off, the primary coil 1a charges the secondary coil 1c, and the first diode 1d is forward-conducted, and the secondary coil 1c sequentially charges the capacitor module 13, the inverter module 14, etc. In practical applications, the specific circuit structure of the flyback conversion module 12 is designed as needed, and is not limited to this embodiment.

[0059] Specifically, in this embodiment, the high voltage generator 1 further includes a first capacitor 18, one end of the first capacitor 18 is connected to the first end of the rectifier module 11, and the other end is connected to the second end of the rectifier module 11; the first capacitor 18 can smooth the direct current output by the rectifier module 11 and then transmit it to the flyback conversion module 12 to protect the electronic devices in the flyback conversion module 12. In practical applications, the circuit structure for optimizing the performance in the high voltage generator 1 is designed as needed, and is not limited to this embodiment.

[0060] like Figure 1 As shown, one end of the capacitor module 13 is connected to the output end of the flyback conversion module 12, and the other end is grounded.

[0061] Specifically, in this embodiment, Figure 1 As shown, the capacitor module 13 includes i capacitor elements connected in parallel, where i is a natural number greater than or equal to 1, and the capacitor module 13 is used to store the DC power output by the flyback conversion module 12. Further, the inverter module 14 is a full-bridge inverter structure, and the two inverter components in the inverter module 14 are connected in parallel. The inverter module 14 can output AC power with a periodic change in current direction. In practical applications, any circuit structure that can convert DC power into AC power is applicable to the inverter module 14 of the present invention, and is not limited to this embodiment.

[0062] like Figure 1 As shown, the high-pressure oil tank 17 receives the alternating current output by the inverter module 14 .

[0063] Specifically, in this embodiment, Figure 1 As shown, the high-pressure oil tank 17 can receive the AC power output by the inverter module 14 through the coil, such as Figure 2 As shown, the high-pressure oil tank 17 can also be connected to the alternating current output by the inverter module 14 through a wire. In practical applications, the circuit structure of the power transmission between the high-pressure oil tank 17 and the inverter module 14 is selected according to the needs, and is not limited to this embodiment. Figure 2 As shown, the high-voltage generator 1 also includes a resonance module 19, which is connected between the inverter module 14 and the high-voltage oil tank 17. The resonance module 19 can stabilize the alternating current output by the inverter module 14. As an example, the resonance module 19 includes a first resonance coil 1j, a resonance capacitor 1k, and a second resonance coil 1m. One end of the first resonance coil 1j is connected to the first output end of the inverter module 14, and the other end is connected to the first end of the resonance capacitor 1k. The second end of the resonance capacitor 1k is connected to the high-voltage oil tank 17; one end of the second resonance coil 1m is connected to the second output end of the inverter module 14, and the other end is connected to the high-voltage oil tank 17. In actual applications, the specific circuit structure of the resonance module 19 is designed according to needs, and is not limited to this embodiment.

[0064] like Figure 1 As shown, one end of the discharge module 15 is connected to the output end of the flyback conversion module 12, and the other end is grounded.

[0065] Specifically, in this embodiment, the discharge module 15 includes a second NMOS transistor 1f and a second resistor 1g, and the second NMOS transistor 1f and the second resistor 1g are connected in series. Figure 1As shown, one end of the second resistor 1g is connected to the output end of the flyback conversion module 12, and the other end of the second resistor 1g is connected to the drain of the second NMOS tube 1f; the source of the second NMOS tube 1f is grounded, and the gate of the second NMOS tube 1f serves as the control end of the discharge module 15. Further, when the second NMOS tube 1f is turned on, the electric energy in the electronic devices in the capacitor module 13 and the inverter module 14 is released, so the present invention can avoid the risk of the capacitor module 13 and the inverter module 14 being broken down due to long-term exposure to high voltage. Furthermore, the second resistor 1g is set as a current limiting resistor and energy consumption device to avoid excessive current in the capacitor module 13 and the inverter module 14 during the discharge process. In practical applications, the specific circuit structure of the discharge module 15 is designed as needed, and is not limited to this embodiment.

[0066] like Figure 1 As shown, the input end of the control module 16 communicates with the external host 2, the first output end is connected to the control end of the flyback conversion module 12, and the second output end is connected to the control end of the discharge module 15; the control module 16 detects the communication status between the external host 2 and the high-voltage generator 1 in real time, and provides a charging control signal to the flyback conversion module 12 when the communication is in a normal state (the normal state of communication includes communication connection and communication interruption within the target time), and provides a discharge control signal to the discharge module 15 when the communication is abnormally interrupted (abnormal communication interruption refers to communication interruption beyond the target time).

[0067] Specifically, in this embodiment, when the control module 16 determines that the communication between the external host 2 and the high-voltage generator 1 is in a normal state, the control module 16 sends a charging control signal to the control end of the flyback conversion module 12. The charging control signal can control the flyback conversion module 12, and the high-voltage generator 1 can be ready to be charged from the external AC power supply at any time; as an example, Figure 1 As shown, the charging control signal can control the first NMOS tube 1b to be turned on or off, and the high-voltage generator 1 can be charged under the control of the charging control signal. Further, when the control module 16 determines that the communication between the external host 2 and the high-voltage generator 1 is abnormally interrupted, the control module 16 sends a discharge control signal to the control end of the discharge module 15, and the discharge control signal controls the discharge module, the capacitor module 13 and the inverter module 14 to release the electrical energy of the internal devices; as an example, Figure 1 As shown, the discharge control signal can control the second NMOS tube 1f, so that the high-voltage generator 1 releases the electrical energy of the internal devices to prevent the internal devices of the high-voltage generator from being broken down.

[0068] Specifically, in this embodiment, Figure 3As shown, the control module 16 includes a first control unit 1h and a second control unit 1i. Further, the first end of the first control unit 1h communicates with the external host 2, and the second end of the first control unit 1h is connected to the input end of the second control unit 1i; wherein the first control unit 1h outputs instructions to the second control unit 1i by judging the communication status between the first control unit 1h and the external host. Further, the first output end of the second control unit 1i is connected to the control end of the flyback conversion module 12, and the second output end of the second control unit 1i is connected to the control end of the discharge module 15; wherein, based on the instructions of the first control unit 1h, the first control unit 1h can command the second control unit 1i to provide a charging control signal to the flyback conversion module 12 when the communication is in a normal state, and command the second control unit 1i to provide a discharge control signal to the discharge module 15 when the communication is abnormally interrupted. As an example, the first control unit 1h can adopt a CPU or MCU chip. In actual application, the specific type of the first control unit 1h can be selected as needed, which is not limited to this embodiment; the second control unit 1i can adopt a CPU or MCU chip, and the second control unit 1i is connected to the first control unit 1h based on a CAN bus. In actual application, the specific type of the second control unit 1i and the specific connection method between the second control unit 1i and the first control unit 1h are selected as needed, which is not limited to this embodiment.

[0069] Embodiment 2

[0070] like Figure 4 As shown, this embodiment provides a power supply control system for a high-voltage generator, and the power supply control system for the high-voltage generator includes an external host 2 and a high-voltage generator 1; the external host 2 communicates with the high-voltage generator 1 and outputs instructions to the high-voltage generator 1; the high-voltage generator 1 determines the communication status between the external host 2 in real time, and provides a charging control signal to the flyback conversion module 12 when the communication is in a normal state, and provides a discharge control signal to the discharge module 15 when the communication is abnormally interrupted; the external host 2 is installed outside the high-voltage working room, and the high-voltage generator 1 is installed inside the high-voltage working room.

[0071] Specifically, in this embodiment, the external AC power supply is used to power the high voltage generator 1. In order to ensure the safety of the staff, the external AC power supply is usually installed in the high voltage working room. Furthermore, when the external host 2 works normally, the external host 2 can timely learn the status of the high voltage generator 1 and control the transmission instructions of the high voltage generator 1, and the high voltage generator 1 also works normally; but when the external host 2 loses communication with the high voltage generator 1 due to shutdown, failure, etc., the high voltage generator 1 judges the communication status and chooses to enter the standby state or the dormant state to avoid potential safety hazards.

[0072] It should be noted that the high voltage generator 1 of this embodiment may be the high voltage generator 1 of the first embodiment. In practical applications, any high voltage generator that can realize power control according to communication conditions may be used, and is not limited to this embodiment.

[0073] Embodiment 3

[0074] like Figure 5 As shown, this embodiment provides a power management method, which is implemented based on the high voltage generator 1 of the first embodiment and includes the following steps:

[0075] like Figure 5 As shown, in step S1 , the communication status between the high voltage generator 1 and the external host 2 is detected.

[0076] Specifically, in this embodiment, when the disconnection time of the communication signal between the high voltage generator 1 and the external host 2 is greater than the target time, the communication status is determined to be abnormal interruption; when the disconnection time of the communication signal between the high voltage generator 1 and the external host 2 is less than or equal to the target time, the communication status is determined to be still normal. Among them, the high voltage generator 1 and the external host 2 communicate at a set communication frequency, that is, the high voltage generator 1 and the external host 2 are connected in a normal state, and the high voltage generator 1 is ready to receive instructions transmitted by the external host 2 at any time. If the high voltage generator 1 does not receive a response signal from the external host 2 within the set communication frequency, the high voltage generator 1 starts to calculate the disconnection time: when the disconnection time does not reach the target time, the high voltage generator 1 considers that the communication with the external host 2 is interrupted in a normal state, and the high voltage generator 1 can re-establish the connection with the external host 2, and the high voltage generator 1 is in a standby state, ready to receive instructions transmitted by the external host 2 at any time; when the disconnection time reaches more than the target time, the high voltage generator 1 considers that the communication with the external host 2 is abnormally interrupted, and the high voltage generator 1 releases the power of the internal device and enters a dormant state. Further, the communication signal can be any signal supported by the communication protocol between the external host 2 and the high-voltage generator 1; as an example, the communication signal can be a tube heat capacity signal and a communication heartbeat signal; wherein the tube heat capacity signal is an important indicator parameter in the high-voltage generator 1; the communication heartbeat signal is an important communication signal in the communication protocol. Further, in order to take into account the detection efficiency and detection effect of the communication status, the target time can be 1 minute to 600 minutes, including but not limited to 2 minutes, 4 minutes, 6 minutes, 8 minutes, 10 minutes, 30 minutes, 60 minutes, 90 minutes, 100 minutes, 120 minutes, 150 minutes, 180 minutes, 200 minutes, 240 minutes, 270 minutes, 300 minutes, 330 minutes, 360 minutes, 390 minutes, 400 minutes, 420 minutes, 450 minutes, 480 minutes, 500 minutes, 510 minutes, 540 minutes, 570 minutes, and the specific value of the target time is set as needed in actual applications, which is not limited to this embodiment.

[0077] like Figure 5 As shown, in step S2, when the communication between the high-voltage generator 1 and the external host 2 is in a normal state, the flyback conversion module 12 receives a charging control signal, and the high-voltage generator 1 enters a standby state; when the communication between the high-voltage generator 1 and the external host 2 is abnormally interrupted, the discharge module 15 receives a discharge control signal, and the high-voltage generator 1 enters a dormant state.

[0078] Specifically, in this embodiment, on the one hand, when the communication between the external host 2 and the high-voltage generator 1 is in a normal state, the high-voltage generator 1 enters a standby state, and the external AC power supply can charge the capacitor module 13 in the high-voltage generator 1 at any time; as an example, Figure 1 and Figure 3 As shown, by controlling the first NMOS tube 1b to be turned on or off, the charging process of the high-voltage generator 1 from the external AC power source can be controlled. On the other hand, when the communication between the external host 2 and the high-voltage generator 1 is abnormally disconnected, the high-voltage generator 1 enters a dormant state; as an example, Figure 1 and Figure 3 As shown, the second NMOS tube 1f is controlled to be turned on, and the electric energy stored in the capacitor module 13 and the inverter module 14 is released. The capacitor module 13 and the inverter module 14 are no longer subjected to high voltage, thereby avoiding the potential safety hazard of the high-voltage generator 1 being in a high-voltage state for a long time.

[0079] In summary, the high-voltage generator, the power supply control system of the high-voltage generator and the power supply management method of the present invention include a rectifier module, a flyback conversion module, a capacitor module, an inverter module, a discharge module, a control module and a high-voltage oil tank. The control module communicates with the external host and judges the communication status in real time: on the one hand, when the communication is in a normal state, the control module provides a charging control signal to the flyback conversion module, and the charging control signal controls the high-voltage generator to charge from the external AC power supply, so the present invention can realize the high-voltage conversion of AC power. On the other hand, when the communication is abnormally interrupted, the control module provides a discharge control signal to the discharge module, and the capacitor module and the inverter module of the high-voltage generator are both discharged, avoiding the breakdown risk of the high-voltage generator, so the present invention eliminates the safety hazard of the high-voltage generator being subjected to high voltage for a long time. In addition, the present invention has the advantages of safety, energy saving, simple structure and easy implementation. Therefore, the present invention effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0080] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A high voltage generator, characterized in that: The high voltage generator at least includes: a rectifier module, a flyback conversion module, a capacitor module, an inverter module, a discharge module, a control module and a high voltage oil tank; The rectifier module, the flyback conversion module, the capacitor module, the inverter module and the high-voltage oil tank are cascaded in sequence; The rectifier module converts the external AC power into DC power; the first end of the rectifier module outputs DC power, and the second end is grounded; The flyback conversion module receives the DC power output by the rectifier module and performs voltage conversion; One end of the capacitor module is connected to the output end of the flyback conversion module, and the other end is grounded; The inverter module converts the direct current on the capacitor module into alternating current; The high-voltage oil tank receives the alternating current output by the inverter module; One end of the discharge module is connected to the output end of the flyback conversion module, and the other end is grounded; The input end of the control module communicates with the external host, the first output end is connected to the control end of the flyback conversion module, and the second output end is connected to the control end of the discharge module; the control module detects the communication status between the external host and the high-voltage generator in real time, and provides a charging control signal to the flyback conversion module when the communication is in a normal state, and provides a discharge control signal to the discharge module when the communication is abnormally interrupted.

2. The high voltage generator according to claim 1, characterized in that: The flyback conversion module includes a primary coil, a first NMOS tube, a first resistor, a secondary coil and a first diode; One end of the primary coil is connected to the first end of the rectifier module, and the other end is connected to the drain of the first NMOS tube; the source of the first NMOS tube is connected to the first end of the first resistor, and the gate serves as the control end of the flyback conversion module; the second end of the first resistor is connected to the second end of the rectifier module; One end of the secondary coil is grounded, and the other end is connected to the anode of the first diode; the cathode of the first diode serves as the output end of the flyback conversion module.

3. The high voltage generator according to claim 1, characterized in that: The high voltage generator further includes a first capacitor, one end of which is connected to the first end of the rectifier module, and the other end of which is connected to the second end of the rectifier module.

4. The high voltage generator according to claim 1, characterized in that: The discharge module comprises a second NMOS tube and a second resistor, wherein the second NMOS tube is connected in series with the second resistor; and a gate of the second NMOS tube serves as a control terminal of the discharge module.

5. The high voltage generator according to claim 1, characterized in that: The control module includes a first control unit and a second control unit; The first end of the first control unit communicates with the external host, and the second end is connected to the input end of the second control unit; the first control unit outputs instructions to the second control unit by judging the communication status between the first control unit and the external host; The first output end of the second control unit is connected to the control end of the flyback conversion module, and the second output end is connected to the control end of the discharge module; based on the instruction of the first control unit, the second control unit provides a charging control signal to the flyback conversion module when the communication is in a normal state, and provides a discharge control signal to the discharge module when the communication is abnormally interrupted.

6. A power supply control system for a high voltage generator, characterized in that: The power control system of the high-voltage generator comprises an external host and the high-voltage generator according to any one of claims 1 to 5; The external host communicates with the high voltage generator and outputs instructions to the high voltage generator; The high voltage generator determines the communication status with the external host in real time, and provides a charging control signal to the flyback conversion module when the communication is in a normal state, and provides a discharging control signal to the discharging module when the communication is abnormally interrupted; The external host is installed outside the high-voltage working room, and the high-voltage generator is installed inside the high-voltage working room.

7. A power management method, implemented based on the high voltage generator according to any one of claims 1 to 5, characterized in that: The power management method comprises at least the following steps: S1: Detect the communication status between the high voltage generator and the external host; S2: When the communication between the high-voltage generator and the external host is in a normal state, the flyback conversion module receives a charging control signal, and the high-voltage generator is in a standby state; when the communication between the high-voltage generator and the external host is abnormally interrupted, the discharge module receives a discharge control signal, and the high-voltage generator enters a dormant state.

8. The power management method according to claim 7, characterized in that: In step S1, when the disconnection time of the communication signal between the high voltage generator and the external host is greater than the target time, the communication status is determined to be an abnormal interruption; when the disconnection time of the communication signal between the high voltage generator and the external host is less than or equal to the target time, the communication status is determined to be a normal state.

9. The power management method according to claim 8, characterized in that: The target time is from 1 minute to 600 minutes.

10. The power management method according to claim 8, characterized in that: The communication signal is a tube heat capacity signal or a communication heartbeat signal between the high voltage generator and the external host.

Images