A high-voltage isolated power supply system

Abstract

The application discloses a high-voltage isolated power supply system, which comprises a shell, a control module and a plurality of cascaded driving modules in the shell, wherein the driving module comprises an energy storage unit and a driving unit which are electrically connected; the control module is connected with the driving unit; there is a preset distance between the shell and a horizontal plane; the energy storage unit is used for supplying power to the driving unit; and the control module is used for generating a driving signal to each driving unit to control the on-off of each driving unit. By using the system, the preset distance between the shell and the horizontal plane is set, the energy storage unit supplies power to the driving unit, the control module is used for controlling the on-off of the driving unit, each energy storage unit and driving unit is ensured to be at the same potential, only the driving signal is isolated and transmitted, the system reliability is improved, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of high-voltage isolated power supply, and more particularly to a high-voltage isolated power supply system. Background Technology

[0002] In the fields of power electronics and high-voltage engineering, safe and reliable power supply isolation technology is a key element in ensuring stable system operation and personal safety, especially in environments with extreme potential differences, where the demand for high-voltage isolated power supplies is increasingly urgent. As energy, transportation, and industrial automation systems evolve towards higher voltage levels and more complex architectures, traditional isolation solutions face unprecedented challenges.

[0003] Existing methods for high-voltage isolation power supply primarily rely on improvements to isolation devices. However, the withstand voltage of the internal insulation medium in these devices is ultimately limited by the intrinsic dielectric strength of the material. This restricts the insulation class of these devices to the 10-20kV range, making it difficult to meet the requirements of ultra-high voltage and ultra-high potential difference scenarios. Furthermore, the insulation layer of these devices is subjected to long-term steady-state or transient high-voltage stress, posing a risk of breakdown due to material defects, manufacturing flaws, aging, or overvoltage, thus affecting system reliability. In addition, achieving higher levels of isolation often requires the use of expensive special materials, complex multi-layer insulation processes, or a significant increase in device size, resulting in high system costs and large space requirements. Summary of the Invention

[0004] This invention provides a high-voltage isolated power supply system that achieves arbitrarily large insulation withstand voltage by setting a preset distance between the outer casing and the horizontal plane, thereby fundamentally solving the material limitation problem. Furthermore, by utilizing an energy storage unit to power the drive unit and a control module to control the drive unit's on / off state, it ensures that the energy storage unit and the drive unit are at the same potential, and only the drive signal is isolated during transmission, improving system reliability, reducing cost, and minimizing size.

[0005] This invention provides a high-voltage isolated power supply system, including a housing and a control module, as well as a multi-stage cascaded drive module located inside the housing. The drive module includes an energy storage unit and a drive unit electrically connected; the control module is connected to the drive unit; and there is a preset distance between the housing and the horizontal plane.

[0006] The energy storage unit is used to power the drive unit;

[0007] The control module is used to generate drive signals to each drive unit to control the on / off state of each drive unit.

[0008] Optionally, the preset distance is H, where H satisfies: H≥1cm.

[0009] Optionally, the drive unit includes a drive chip and a switch;

[0010] The driver chip is electrically connected between the energy storage unit and the switch;

[0011] The control module is also used to generate drive signals to the driver chip, so that the driver chip drives the switch to turn on and off.

[0012] Optionally, the housing may also include a transformer;

[0013] The transformer is electrically connected between the energy storage unit and the drive unit;

[0014] Transformers are used to convert the output voltage of the energy storage unit into the operating voltage of the drive unit.

[0015] Optionally, the transformer may include a step-up DC-DC circuit, a step-down DC-DC circuit, a step-up / step-down DC-DC circuit, or a low-dropout linear regulator.

[0016] Optionally, the energy storage unit includes a supercapacitor module, a rechargeable lithium iron phosphate battery, a lithium thionyl chloride battery, or a dry cell battery pack.

[0017] Optionally, the system also includes a communication optical fiber, and the housing also includes an optical fiber receiver;

[0018] The outer casing has through holes through which a communication optical fiber passes. The signal input end of the communication optical fiber is connected to the signal output end of the control module, the signal output end of the communication optical fiber is connected to the signal input end of the optical fiber receiver, and the signal output end of the optical fiber receiver is connected to the signal input end of the drive unit.

[0019] Optionally, the system also includes a wireless communication module; the control module and the drive unit are wirelessly connected via the wireless communication module.

[0020] Optionally, the wireless communication module includes a wireless radio frequency module, an infrared optical communication module, or a capacitively-inductively coupled carrier communication module.

[0021] Optionally, the housing includes nylon insulated posts; the height of the nylon insulated posts is a preset distance.

[0022] The technical solution of this invention connects the energy storage unit and the drive unit electrically. The pre-stored electrical energy in the energy storage unit is transferred to the drive unit, providing it with local operating power. The control module is located on the low-voltage side and is completely electrically isolated from the high-voltage section. Its core function is to generate multiple synchronous or out-of-phase drive signals according to system operating requirements and transmit these signals to each drive unit. When a drive unit receives a low-voltage drive signal, it converts it into a gate control signal with sufficient driving capability, thereby precisely controlling the on / off state of the switch at the high potential. Using this system, by setting a preset distance between the casing and the horizontal plane, it overcomes the bottleneck of traditional high-voltage isolation technology while achieving arbitrarily large insulation withstand voltage, fundamentally solving the material limitation problem. Furthermore, by using the energy storage unit to power the drive unit and the control module to control the drive unit's on / off state, it ensures that the energy storage unit and the drive unit are at the same potential, isolating only the drive signal transmission, improving system reliability, reducing cost, and minimizing size.

[0023] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a high-voltage isolation power supply system provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of another high-voltage isolation power supply system provided in an embodiment of the present invention. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] In one embodiment, Figure 1 This is a schematic diagram of a high-voltage isolated power supply system provided in an embodiment of the present invention. This embodiment is applicable to situations where power is supplied directly to the drive unit using a local energy storage unit, without drawing power from the grid, to ensure that both are at the same potential, and only the drive signals generated by the control module are isolated during transmission. Figure 1 As shown, the high-voltage isolated power supply system includes a housing 1 and a control module 2, as well as a multi-level cascaded drive module 3 located inside the housing 1. The drive module 3 includes an energy storage unit 31 and a drive unit 32 that are electrically connected. The control module 2 is connected to the drive unit 32. There is a preset distance between the housing 1 and the horizontal plane. The energy storage unit 31 is used to supply power to the drive unit 32. The control module 2 is used to generate drive signals to each drive unit 32 to control the on / off state of each drive unit 32.

[0030] The outer casing 1 serves as the system's external mechanical and electrical protection structure, and can be made of insulating, pressure-resistant, dustproof, and waterproof materials. In this embodiment, a predetermined distance exists between the bottom surface of the outer casing 1 and the horizontal plane to enhance ground insulation performance, prevent creepage or moisture, and improve overall high-voltage isolation capability. The control module 2 is the core control unit of the system, responsible for generating precisely timed drive signals and transmitting them to each drive unit 32 to coordinate the energy output of the entire system. The drive module 3 is the key execution unit for realizing energy conversion and output in the system, employing a multi-level parallel structure to improve power capacity and redundancy reliability. In this embodiment, each drive module 3 includes an energy storage unit 31 and a drive unit 32 electrically connected. The energy storage unit 31 stores electrical energy (such as capacitors, small batteries, or supercapacitors) and provides instantaneous or continuous drive power to the drive unit 32 when needed, ensuring its reliable operation under high-voltage isolation conditions. The drive unit 32 is the core functional module for power switch control in the high-voltage isolated power supply system. It is used to receive low-power drive signals from the control module 2 and to precisely control the on / off state of high-voltage or high-current circuits accordingly. Essentially, it is an interface unit for controlling high-voltage power with low-voltage power, which enables dynamic regulation of energy flow while ensuring electrical isolation.

[0031] Specifically, the energy storage unit 31 is a local energy storage structure, meaning it stores a certain amount of electrical energy to power the drive unit 32. In this embodiment, by electrically connecting the energy storage unit 31 and the drive unit 32, the electrical energy pre-stored in the energy storage unit 31 is transferred to the drive unit 32, thereby providing local operating power to the drive unit 32. The control module 2 is located on the low-voltage side and is completely electrically isolated from the high-voltage section. Its core function is to generate multiple synchronous or out-of-phase drive signals according to the system operation requirements, and transmit the generated drive signals to each drive unit 32 through a high-voltage isolation channel (such as optocoupler, magnetic coupler, or high-frequency wireless coupling). When the drive unit 32 receives the low-voltage drive signal, it converts the drive signal into a gate control signal with sufficient drive capability, thereby precisely controlling the on and off states of the switch.

[0032] Since all drive modules 3 are encapsulated within a highly insulating housing 1, and the housing 1 is positioned at a predetermined distance H from the horizontal plane, this arrangement effectively increases the electrical clearance between the high-voltage system and the ground, preventing air breakdown or flashover to ground under high potential differences. Secondly, the predetermined distance, combined with the housing structure, significantly extends the surface creepage path, thereby suppressing insulation failure caused by surface leakage in humid or polluted environments. Finally, the elevated arrangement prevents ground moisture, water accumulation, dust, and corrosive contaminants from directly contacting the bottom of the equipment, thus reducing the risk of insulation material aging and improving the long-term operational reliability and safety of the system under complex conditions. Furthermore, the parallel design of the multi-stage drive modules 3 not only improves the system's total output power capacity and redundancy but also supports flexible power distribution and fault tolerance strategies. For example, when one drive module 3 fails, the remaining drive modules 3 can continue to operate, preventing complete system failure.

[0033] It should be noted that in this embodiment, the energy storage unit 31 directly supplies power to the drive module 32 on the high-potential side, so that the energy storage unit 31 and the drive unit 32 are at the same potential (i.e., at the same potential). No additional insulation is required between them, which can safely and efficiently provide the drive unit 32 with instantaneous or continuous operating power. When the control module 2 sends the generated drive signal to the drive unit 32, the drive unit 32 can immediately respond by relying on local energy storage to complete the switching operation. This realizes the energy self-sufficiency of the independent energy storage unit 31 at the same potential on the high-potential side, and only isolates the drive signal generated by the control module 2 for transmission. This not only significantly reduces the electrical stress borne by the isolation barrier during operation and avoids the risk of breakdown caused by insulation material aging, defects or overvoltage, but also improves the system response speed, energy efficiency and long-term reliability under ultra-high voltage environment, fundamentally breaking through the bottleneck of traditional solutions limited by the dielectric strength of the insulating medium.

[0034] The technical solution of this invention connects the energy storage unit and the drive unit electrically. The pre-stored electrical energy in the energy storage unit is transferred to the drive unit, providing it with local operating power. The control module is located on the low-voltage side and is completely electrically isolated from the high-voltage section. Its core function is to generate multiple synchronous or out-of-phase drive signals according to system operating requirements and transmit these signals to each drive unit. When a drive unit receives a low-voltage drive signal, it converts it into a gate control signal with sufficient driving capability, thereby precisely controlling the on / off state of the switch. Using this system, by setting a preset distance between the casing and the horizontal plane, it overcomes the bottleneck of traditional high-voltage isolation technology while achieving arbitrarily large insulation withstand voltage, fundamentally solving the material limitation problem. Furthermore, by using the energy storage unit to power the drive unit and the control module to control the drive unit's on / off state, it ensures that the energy storage unit and the drive unit are at the same potential, isolating only the drive signal during transmission, improving system reliability, reducing cost, and minimizing size.

[0035] Optionally, the preset distance is H, where H satisfies: H≥1cm.

[0036] Specifically, the preset distance H satisfies H≥1cm. For example, H can be 1cm, 3cm, 5cm, 8cm, 10cm, or 12cm, etc., and can be determined according to the actual situation, without limitation here. It should be noted that for the multi-stage drive unit 32, setting H to 1cm is sufficient to meet a 30kV potential difference. In other words, under ideal or typical engineering conditions, a 1cm air gap is sufficient to withstand a 30kV potential difference without breakdown, significantly improving system safety.

[0037] In another specific embodiment, Figure 2 This is a schematic diagram of another high-voltage isolation system provided in an embodiment of the present invention, with reference to... Figure 2 As shown, optionally, the drive unit 32 includes a drive chip 321 and a switch 322; the drive chip 321 is electrically connected between the energy storage unit 31 and the switch 322; the control module 2 is also used to generate a drive signal to the drive chip 321 so that the drive chip 321 drives the switch 322 to switch on and off.

[0038] The driver chip 321 is the core controller in the driver unit 32, typically a dedicated integrated circuit (such as a gate driver IC). Its function is to perform level conversion, signal shaping, and power amplification on the low-voltage drive signal output from the control module 2, and to provide sufficient drive current to quickly and reliably turn on or off subsequent power switching devices. In high-voltage environments, the driver chip 321 often possesses high common-mode rejection capability or integrated isolation functions (such as using isolated power supplies and signal isolation technologies) to ensure the safety of the control side. The switch 322 refers to a power semiconductor switching device connected in series between the energy storage unit 31 and the next stage circuit. Its function is to turn the main power circuit on or off under the control of the driver chip 321, achieving precise management of the timing, frequency, and duty cycle of energy release. Furthermore, the switching performance of the switch 322 directly affects the system's efficiency, response speed, and electromagnetic compatibility. In this embodiment, the switch 322 may include, but is not limited to, MOSFETs, IGBTs, or SiC / GaN devices. During connection, the output terminal of the driver chip 321 is electrically connected to the gate of the switch 322, the source of the switch 322 is electrically connected to the negative terminal of the energy storage unit 31, and the drain is electrically connected to the source of the switch 322 in the next stage driver unit 32.

[0039] Specifically, the electrical energy output by the energy storage unit 31 is transmitted to the driver chip 321 to provide local operating power for the driver chip 321. The control module 2 sends a low-voltage drive signal to the driver chip 321 through an isolation channel. After receiving the drive signal, the driver chip 321 first completes signal conditioning and electrical isolation adaptation, and then outputs a gate control signal with sufficient drive capability, thereby driving the switch 322 to quickly and reliably turn on or off. In this way, the drive unit 32 realizes the function of safely and efficiently controlling the release of high-voltage side energy storage with a low-voltage control signal. When multiple such drive units 32 are connected in parallel, they can work collaboratively under the unified scheduling of the control module 2, which not only improves the total output capacity of the system, but also optimizes dynamic performance and heat distribution through phase separation, current sharing and other strategies, while maintaining the electrical isolation integrity between modules, ensuring the stable and safe operation of the entire high-voltage isolated power supply system in a high potential difference environment.

[0040] Optional, continue to refer to Figure 2 The housing 1 also includes a transformer 4; the transformer 4 is electrically connected between the energy storage unit 31 and the drive unit 32; the transformer 4 is used to convert the output voltage of the energy storage unit 31 into the working voltage of the drive unit 32.

[0041] Optionally, transformer 4 may include a step-up DC-DC circuit, a step-down DC-DC circuit, a step-up / step-down DC-DC circuit, or a low-dropout linear regulator.

[0042] In this embodiment, transformer 4 refers to a power conversion circuit (not a traditional power frequency magnetic core transformer) used for voltage transformation. Its function is to adapt the voltage output from energy storage unit 31 to the stable operating voltage required by drive unit 32 (especially drive chip 321), ensuring the reliable operation of drive chip 321. In this embodiment, transformer 4 includes a boost DC-DC circuit, a buck DC-DC circuit, a buck-boost DC-DC circuit, or a low-dropout linear regulator. The boost DC-DC circuit (Boost) is used to increase the input DC voltage to the required higher output voltage. The buck DC-DC circuit (Buck) is used to decrease the input DC voltage to the required lower output voltage; it is highly efficient and small in size, suitable for scenarios where the energy storage voltage is higher than the drive requirement. The buck-boost DC-DC circuit (Buck-Boost) can provide a stable output when the input voltage is higher, lower, or equal to the output voltage, offering greater adaptability and suitability for situations with large battery voltage fluctuations. Low-dropout linear regulators (LDOs) provide low-noise, high-stability output voltage through linear regulation, but they are less efficient. They are suitable for powering low-power drive chips sensitive to electromagnetic interference; the specific choice can be determined based on actual conditions and is not limited here. In this embodiment, transformer 4 is a boost-type DC-DC circuit used to boost the operating voltage (approximately 3.0V-4.2V) output by energy storage unit 31 to +15V and output it to drive chip 321. This ensures that although energy storage unit 31 and drive unit 32 are located on the high-potential side, their input and output share a common ground (same potential). Therefore, no cross-potential isolation is required during signal transmission; only voltage conversion and regulation are needed using transformer 4, thus ensuring the stability and compatibility of the power supply to drive unit 32.

[0043] Optionally, the energy storage unit 31 may include a supercapacitor module, a rechargeable lithium iron phosphate battery, a lithium thionyl chloride battery, or a dry cell battery pack. The specific type can be determined according to the actual situation and is not limited here.

[0044] Supercapacitor modules refer to integrated energy storage units composed of multiple supercapacitor cells (also known as electrochemical capacitors) connected in series, parallel, or series-parallel combinations. Their core energy storage principle is based on the double-layer effect and / or pseudocapacitive reaction at the electrode / electrolyte interface, rather than the chemical reaction of traditional batteries. Lithium iron phosphate (LiFePO4) batteries are rechargeable secondary lithium-ion batteries. Their positive electrode active material is lithium iron phosphate (LiFePO4), the negative electrode is typically graphite, and the electrolyte is an organic solvent containing lithium salts. These batteries achieve charging and discharging through the insertion and extraction of lithium ions between the positive and negative electrodes, making them typical electrochemical energy storage devices with a well-defined electrode material system and a reversible electrochemical reaction mechanism. Lithium thionyl chloride (SOCl2) batteries are non-rechargeable primary lithium batteries. They use metallic lithium (Li) as the negative electrode and thionyl chloride (SOCl2) as the positive electrode active material and electrolyte solvent. During discharge, lithium reacts irreversibly with thionyl chloride to produce lithium chloride, sulfur, and sulfur dioxide. Because the reaction is irreversible, it can only be used once, making it a disposable electrochemical power source. A dry cell battery pack refers to a battery assembly consisting of one or more dry cell battery cells (such as common zinc-manganese batteries, alkaline zinc-manganese batteries, etc.) connected electrically (in series or in parallel).

[0045] Optional, continue to refer to Figure 2 The system also includes a communication optical fiber 5, and the housing 1 also includes an optical fiber receiver 6; the housing 1 is provided with a through hole (not shown in the figure), through which the communication optical fiber 5 passes; the signal input end of the communication optical fiber 5 is connected to the signal output end of the control module 2, the signal output end of the communication optical fiber 5 is connected to the signal input end of the optical fiber receiver 6, and the signal output end of the optical fiber receiver 6 is connected to the signal input end of the drive unit 32.

[0046] Communication optical fiber is a thin, transparent fiber made of high-purity glass (quartz) or plastic. It transmits digital or analog signals via total internal reflection, carrying light waves. Its basic structure includes a core (for light transmission), a cladding (for total internal reflection), and an outer sheath (for mechanical protection). Essentially, it is a dielectric waveguide device, independent of metallic conductors, and therefore naturally possesses electrical isolation characteristics. A through-hole is a specially designed through-hole in the outer shell structure, allowing cables, optical fibers, or other components to pass through. In high-voltage equipment, this through-hole is not a simple opening but a sealed channel with an insulating design. It typically incorporates an insulating sleeve or a high-voltage, aging-resistant elastic sealing ring to ensure that the communication optical fiber passes through without compromising the original sealing and insulation integrity of the outer shell.

[0047] Specifically, when transmitting the drive signal generated by the control module 2, the communication optical fiber 5 can be used as the transmission channel for the drive signal to achieve complete electrical isolation communication between the low-voltage side control module 2 and the high-potential side drive unit 32. Specifically, the drive signal output by the control module 2 is first converted into an optical pulse signal by an electro-optical conversion device; after the optical pulse signal enters the communication optical fiber 5, it propagates with low loss along the length of the optical fiber by relying on the principle of total internal reflection inside the fiber core of the communication optical fiber 5; the communication optical fiber 5 passes through a specially provided through hole on the outer shell 1, introducing the optical pulse signal from the low-voltage side to the high-voltage side. The optical pulse signal is then converted into an electrical signal by the optical fiber receiver 6, which restores the optical pulse signal to the original electrical signal and sends it to the input signal terminal of the drive chip 321, so that the drive chip 321 triggers the drive switch 322 to achieve the on / off action. Because the entire signal transmission process uses light as the medium and glass or plastic as the dielectric, without relying on any metal conductor to connect the high and low potential sides, it naturally possesses infinite DC insulation resistance and extremely high withstand voltage (typically reaching tens of kV or more). This effectively blocks the conduction paths of ground potential difference, common-mode interference, and transient overvoltage, fundamentally ensuring the safety and reliability of control signal transmission under high-voltage environments. Simultaneously, the through-hole employs an insulating and sealed structure to ensure that the insertion of the communication optical fiber 5 does not affect the overall protection level and insulation performance of the outer casing 1.

[0048] Optional, continue to refer to Figure 2 The system also includes a wireless communication module (not shown in the figure); the control module 2 and the drive unit 32 are wirelessly connected through the wireless communication module.

[0049] Among them, the wireless communication module is an electronic unit that integrates functions such as signal modulation, transmission / reception, and encoding / decoding. It is used to realize information exchange between two devices through electromagnetic waves, light waves, or near-field coupling fields that propagate in space without physical wire connection. Its essence is to convert electrical signals into physical field signals that can propagate in free space or a medium, and then restore them at the receiving end, thereby completing non-contact data communication.

[0050] Specifically, the drive signals generated by control module 2, during transmission, in addition to Figure 2The transmission shown utilizes communication fiber optic cable 5 and fiber optic receiver 6, and can also be transmitted via a wireless communication module. This means that a non-contact signal transmission link is established between control module 2 and drive unit 32 via the wireless communication module, completely eliminating physical wire connections and achieving electrical isolation between the high-voltage and low-voltage sides. Specifically, control module 2 encodes the drive pulse command to be sent into a digital signal and modulates it onto a specific carrier wave (such as radio frequency electromagnetic waves, infrared light pulses, or high-frequency coupling signals), which is then radiated or coupled wirelessly by the wireless communication module at the transmitting end. The wireless communication module at the receiving end, located at the high-potential side, captures the drive signal, demodulates and decodes it to reconstruct the original control command, and sends it to the input of drive unit 32 to trigger the corresponding action. Because signal transmission relies on spatially propagating electromagnetic fields, light beams, or near-field coupling fields, rather than metallic conductors, there is no direct electrical path between high and low potentials. This fundamentally avoids the risks of high-voltage breakdown, ground loop interference, and insulation failure, significantly improving the system's insulation safety and structural flexibility.

[0051] Optionally, the wireless communication module includes a wireless radio frequency module, an infrared optical communication module, or a capacitively-inductively coupled carrier communication module.

[0052] Among them, a wireless radio frequency module refers to a wireless transceiver device operating at a specific radio frequency (such as the 2.4GHz industrial band or the 315 / 433 / 868 / 915MHz Sub-1GHz band), utilizing the radiation propagation of electromagnetic waves in space to achieve data transmission; its core includes a radio frequency chip, antenna, filter, and baseband processing circuit. An infrared optical communication module is a communication device that uses invisible infrared light with wavelengths between 700nm and 1mm as the information carrier, typically using an infrared light-emitting diode (IR LED) as the transmitter and a photodiode or phototransistor as the receiver. Capacitive / inductive coupling carrier communication is a near-field communication method that transmits signals through an electric field (capacitive coupling); in capacitive coupling, an insulating medium is sandwiched between two conductors to form a "coupling capacitor," allowing high-frequency signals to cross the insulating barrier; in inductive coupling, mutual inductance is formed by coils wound on a magnetic core or insulator to transmit modulated signals.

[0053] Optionally, the housing 1 includes nylon insulating posts; the height of the nylon insulating posts is a preset distance.

[0054] The nylon insulating post is a columnar or cylindrical structural component made of polyamide polymer materials (commonly known as nylon, such as PA6 and PA66, often reinforced with glass fiber). It is mainly used in electrical equipment to support live parts and isolate them from grounded parts or parts at different potentials. Essentially, it is an engineering plastic insulator that combines mechanical load-bearing capacity with high volume resistivity, serving as a fixing and isolation element in high-voltage systems. In this embodiment, the height of the nylon insulating post is a preset distance, which is the minimum electrical clearance between the bottom of the outer casing 1 and the ground (or grounding plane).

[0055] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0056] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A high-voltage isolation power supply system, characterized in that, The device includes a housing and a control module, as well as a multi-stage cascaded drive module located within the housing. The drive module includes an energy storage unit and a drive unit that are electrically connected. The control module is connected to the drive unit. There is a preset distance between the housing and a horizontal plane. The horizontal plane is the ground or a grounded plane. The energy storage unit is used to supply power to the drive unit; The control module is used to generate drive signals to each of the drive units to control the on / off state of each drive unit.

2. The high-voltage isolation power supply system according to claim 1, characterized in that, The preset distance is H, where H satisfies: H≥1cm.

3. The high-voltage isolation power supply system according to claim 1, characterized in that, The driving unit includes a driving chip and a switch; The driver chip is electrically connected between the energy storage unit and the switch; The control module is also used to generate a drive signal to the drive chip so that the drive chip drives the switch to turn on and off.

4. The high-voltage isolation power supply system according to claim 1, characterized in that, The housing also includes a transformer; The transformer is electrically connected between the energy storage unit and the drive unit; The transformer is used to convert the output voltage of the energy storage unit into the operating voltage of the drive unit.

5. The high-voltage isolation power supply system according to claim 4, characterized in that, The transformer includes a step-up DC-DC circuit, a step-down DC-DC circuit, a step-up / step-down DC-DC circuit, or a low-dropout linear regulator.

6. The high-voltage isolation power supply system according to claim 1, characterized in that, The energy storage unit includes a supercapacitor module, a rechargeable lithium iron phosphate battery, a lithium thionyl chloride battery, or a dry cell battery pack.

7. The high-voltage isolation power supply system according to claim 1, characterized in that, It also includes a communication optical fiber, and the housing further includes an optical fiber receiver; The outer casing has a through hole through which the communication optical fiber passes; the signal input end of the communication optical fiber is connected to the signal output end of the control module, the signal output end of the communication optical fiber is connected to the signal input end of the optical fiber receiver, and the signal output end of the optical fiber receiver is connected to the signal input end of the drive unit.

8. The high-voltage isolation power supply system according to claim 1, characterized in that, It also includes a wireless communication module; the control module and the drive unit are wirelessly connected through the wireless communication module.

9. The high-voltage isolation power supply system according to claim 8, characterized in that, The wireless communication module includes a wireless radio frequency module, an infrared optical communication module, or a capacitively-inductively coupled carrier communication module.

10. The high-voltage isolation power supply system according to claim 1, characterized in that, The outer shell includes nylon insulating supports; the height of the nylon insulating supports is the preset distance.

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