A high-voltage high-frequency pulse power supply test verification device
By adopting a shielded test box with a double-layer metal structure and built-in functional modules, the problems of insufficient operation interface and data storage in traditional high-voltage high-frequency pulse power supply test equipment have been solved. This has enabled efficient signal acquisition, processing and data storage, improved the stability and safety of the equipment, and enhanced its mobility and heat dissipation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海文顺电器有限公司
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional high-voltage, high-frequency pulse power supply testing equipment lacks convenient operation interfaces and data storage functions, has poor heat dissipation performance, cannot effectively cope with interference factors such as static electricity, and has insufficient mobility.
The shielded test box adopts a double-layer metal structure, with an inner layer of aluminum alloy and an outer layer of stainless steel, filled with electromagnetic shielding material in between. It is equipped with a high-voltage high-frequency pulse acquisition module, a signal conditioning module, a data acquisition and processing module, and a safety protection module. It has a built-in solid-state drive, a cooling fan and a ventilated structure, a signal input interface, an ammeter and a leakage current protector, and casters for easy movement.
It enables convenient signal access and data management, improves the stability and security of the equipment, ensures the shielding effect of the test environment, enhances the mobility and data storage capacity of the device, solves the heat dissipation problem, and improves the continuity and reliability of the test.
Smart Images
Figure CN224399569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of high voltage high frequency pulse power supply testing and verification devices, specifically to a high voltage high frequency pulse power supply testing and verification device. Background Technology
[0002] Traditional high-voltage, high-frequency pulse power supply testing equipment has a relatively simple functional design, lacking convenient operating interfaces and data storage capabilities, which is not conducive to signal input and data management during the testing process. Furthermore, the equipment has poor heat dissipation performance; prolonged operation can easily lead to heat buildup, causing performance degradation of internal components and affecting the continuity and stability of the test. At the same time, the equipment's protection design is insufficient, unable to effectively cope with interference factors such as electrostatic discharge, and it lacks flexible mobility, significantly limiting its application scenarios. Utility Model Content
[0003] Therefore, this utility model provides a high-voltage high-frequency pulse power supply testing and verification device to solve the problems of lack of convenient operation interface and data storage function in the prior art, which is not conducive to signal access and data management during the testing process.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] The shielding test box adopts a double-layer metal structure, with the inner layer being made of aluminum alloy and the outer layer being made of stainless steel, and electromagnetic shielding material filling the space between the two layers.
[0006] The testing device includes a circuit board. A high-voltage high-frequency pulse acquisition module, a signal conditioning module, a data acquisition and processing module, and a safety protection module are fixedly mounted on the outer wall of the circuit board. The high-voltage high-frequency pulse acquisition module includes a high-voltage probe and a high-frequency sampling circuit.
[0007] According to a first aspect of this utility model, a high-voltage high-frequency pulse power supply testing and verification device is provided.
[0008] Furthermore, the circuit board is mounted on the inner wall of the shielded test chamber, the voltage divider ratio of the high-voltage probe is 1000:1, the input capacitance is 1.5pF, the rise time is less than 500ps, the bandwidth is greater than 1GHz, and the sampling rate of the high-frequency sampling circuit is 10GS / s with a resolution of 12 bits.
[0009] Furthermore, the signal conditioning module is connected to the high-voltage high-frequency pulse acquisition module. The signal conditioning module includes a preamplifier, a filter, and an attenuator. The gain-bandwidth product of the preamplifier is greater than 1 GHz. The filter is a multi-stage LC filter, and the attenuator uses a precision resistor network.
[0010] Furthermore, the data acquisition and processing module is connected to the signal conditioning module. The data acquisition and processing module includes an FPGA and a DSP. The FPGA is used to control data sampling and buffering, and the DSP is used for data processing and parameter calculation.
[0011] Furthermore, the safety protection module is connected to the high-voltage high-frequency pulse acquisition module, the signal conditioning module, and the data acquisition and processing module. The safety protection module includes an overvoltage protection circuit, an overcurrent protection circuit, and a leakage current protection circuit.
[0012] Furthermore, the inner wall of the shielded test box is coated with an antistatic coating, the front panel of the shielded test box is equipped with a signal input interface and an ammeter, the front operation panel of the shielded test box has a leakage current protector and an indicator light, and universal wheels are installed at the four corners of the bottom of the shielded test box, and the universal wheels are equipped with a locking structure.
[0013] Furthermore, the data acquisition and processing module also includes a data storage unit, which is a built-in solid-state drive used to store test data. The overvoltage protection circuit uses a comparator and a relay to cut off the power input when the input voltage exceeds the set safety threshold.
[0014] Furthermore, the overcurrent protection circuit uses a Hall current sensor and a current limiting circuit to monitor the current in the circuit in real time. When the current exceeds the set safety value, the current output is automatically limited. The leakage protection circuit uses a leakage sensor to detect leakage in the circuit. When leakage is detected, the power supply is cut off.
[0015] Furthermore, a support plate is fixedly installed on the inner wall of the shielded test box, a cooling fan is fixedly installed on the inner wall of the support plate, an electromagnetic shielding mesh is installed at the air outlet of the cooling fan, a breathable mesh plate is fixedly installed on the side wall of the shielded test box, and a top plate is provided on the top of the shielded test box, the top plate being a breathable plate.
[0016] This utility model has the following advantages:
[0017] 1. This device has a signal input interface on the front panel of the shielded test box for easy connection of the power supply signal to be tested. It is also equipped with an ammeter, indicator light and leakage protection device to improve the convenience and safety of operation. The bottom is equipped with casters with locking structure for easy movement and fixation of the device. The data acquisition and processing module has a built-in solid-state hard disk as a data storage unit, which can effectively save test data and facilitate traceability and analysis.
[0018] 2. The support plate and cooling fan on the inner wall of the shielded test chamber, together with the electromagnetic shielding mesh at the air outlet, the breathable mesh plate and the breathable top plate, form a good heat dissipation channel to ensure stable operation of the device. Compared with traditional equipment, this device has significant improvements in functional integration, ease of operation, data management and equipment stability. Attached Figure Description
[0019] Fig. 1 A schematic diagram of the main structure of a high-voltage high-frequency pulse power supply testing and verification device provided by this utility model;
[0020] Fig. 2 A top view of the high-voltage high-frequency pulse power supply testing and verification device provided by this utility model;
[0021] Fig. 3 A schematic diagram of the shielded test box structure of a high-voltage high-frequency pulse power supply testing and verification device provided by this utility model;
[0022] Fig. 4 A schematic diagram of the test device structure of a high-voltage high-frequency pulse power supply test and verification device provided by this utility model.
[0023] The diagram shows: shielded test box 100, top plate 110, support plate 120, cooling fan 130, breathable mesh plate 140, signal input interface 200, ammeter 210, indicator light 220, leakage current protector 230, caster wheel 240, circuit board 300, high voltage high frequency pulse acquisition module 310, signal conditioning module 320, data acquisition and processing module 330, and safety protection module 340. Detailed Implementation
[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] Example 1
[0026] like Figs. 1-4 As shown, in the first aspect embodiment of this utility model, a high-voltage high-frequency pulse power supply testing and verification device includes a shielded test box 100. The shielded test box 100 adopts a double-layer metal structure, with the inner layer being made of aluminum alloy and the outer layer being made of stainless steel. Electromagnetic shielding material is filled between the two layers.
[0027] The testing device includes a circuit board 300. A high-voltage high-frequency pulse acquisition module 310, a signal conditioning module 320, a data acquisition and processing module 330, and a safety protection module 340 are fixedly installed on the outer wall of the circuit board 300. The high-voltage high-frequency pulse acquisition module 310 includes a high-voltage probe and a high-frequency sampling circuit.
[0028] In the above embodiments, it should be noted that the shielded test box 100 adopts a double-layer metal structure, with an inner layer of aluminum alloy and an outer layer of stainless steel, filled with electromagnetic shielding material in between. This effectively blocks external electromagnetic interference and provides a stable environment for internal testing. The high-voltage high-frequency pulse acquisition module 310 on the circuit board 300 initially acquires the signal emitted by the high-voltage high-frequency pulse power supply through a high-voltage probe and a high-frequency sampling circuit. The acquired signal awaits further processing by subsequent modules. The signal conditioning module 320, data acquisition and processing module 330, and safety protection module 340 are in a ready-to-work state, adopting a high-voltage resistor cabinet design with an internal resistance of 450Ω@15kV high voltage / 50Ω@2kV floating high voltage. The component mounting plate on the cabinet is made of FR4 glass fiber reinforced epoxy resin board, designed and installed to cope with high-voltage testing. The chassis panel, component mounting plate, and mounting bracket are made of FR4 material.
[0029] The technical effects achieved by the above embodiments are as follows: a basic test and verification device framework is constructed, the shielded test box realizes the electromagnetic shielding function, reduces the influence of external interference on the test signal, lays the foundation for subsequent accurate acquisition of high voltage high frequency pulse power supply signals, and ensures the stability of the test environment.
[0030] Example 2
[0031] like Fig. 4 As shown, a high-voltage high-frequency pulse power supply test and verification device includes all the contents of Embodiment 1. In addition, the circuit board 300 is installed on the inner wall of the shielded test box 100. The voltage division ratio of the high-voltage probe is 1000:1, the input capacitance is 1.5pF, the rise time is less than 500ps, the bandwidth is greater than 1GHz, the sampling rate of the high-frequency sampling circuit is 10GS / s, the resolution is 12 bits, the signal conditioning module 320 is connected to the high-voltage high-frequency pulse acquisition module 310, and the signal conditioning module includes a preamplifier, a filter and an attenuator. The gain-bandwidth product of the preamplifier is greater than 1GHz, the filter is a multi-stage LC filter, and the attenuator adopts a precision resistor network.
[0032] In the above embodiments, it should be noted that the circuit board 300 is installed on the inner wall of the shielded test box 100 so that the signal acquisition is in a shielded environment throughout the process. The high-voltage probe accurately acquires and processes the high-voltage high-frequency pulse signal with a voltage division ratio of 1000:1, an input capacitance of 1.5pF, a rise time of less than 500ps, and a bandwidth of more than 1GHz. The high-frequency sampling circuit converts the analog signal into a digital signal with a sampling rate of 10GS / s and a resolution of 12 bits. The signal conditioning module 320 is connected to the high-voltage high-frequency pulse acquisition module 310. The preamplifier amplifies the weak signal, the multi-stage LC filter filters out noise, and the attenuator composed of a precision resistor network appropriately adjusts the signal to make it more suitable for subsequent analysis.
[0033] The technical effects achieved by the above embodiments are as follows: accurate acquisition and preliminary conditioning of high-voltage high-frequency pulse signals are realized, ensuring high signal quality, low interference, and accurate parameters, thereby improving the reliability and effectiveness of test signals and providing high-quality data for subsequent data processing.
[0034] Example 3
[0035] like Fig. 4 As shown, a high-voltage high-frequency pulse power supply testing and verification device includes all the contents of Embodiment 2. In addition, the data acquisition and processing module 330 is connected to the signal conditioning module 320. The data acquisition and processing module 330 includes an FPGA and a DSP. The FPGA is used to control data sampling and buffering, and the DSP is used for data processing and parameter calculation. The safety protection module 340 is connected to the high-voltage high-frequency pulse acquisition module 310, the signal conditioning module 320 and the data acquisition and processing module 330. The safety protection module 340 includes an overvoltage protection circuit, an overcurrent protection circuit and a leakage current protection circuit.
[0036] In the above embodiments, it should be noted that the data acquisition and processing module 330 receives the signal processed by the signal conditioning module 320. The FPGA controls data sampling and buffering, and stores the signal in an orderly manner according to the set program. The DSP processes the buffered data and calculates parameters, extracting key parameters such as pulse amplitude, frequency, and duty cycle to complete the quantitative analysis of the signal. The safety protection module 340 is connected to the high-voltage high-frequency pulse acquisition module 310, the signal conditioning module 320, and the data acquisition and processing module 330, and monitors the working status of each module in real time. The overvoltage protection circuit, overcurrent protection circuit, and leakage protection circuit are always ready to activate the protection mechanism when abnormal conditions occur.
[0037] The technical effects achieved by the above embodiments are as follows: in-depth processing and analysis of the acquired signals are realized, and key parameters of the high-voltage high-frequency pulse power supply are obtained quickly and accurately through the collaborative work of FPGA and DSP; at the same time, the addition of the safety protection module provides electrical safety protection for the entire testing process and reduces the risk of failure caused by abnormal voltage or current or leakage during the testing process.
[0038] Example 4
[0039] like Figs. 1-3 As shown, a high-voltage high-frequency pulse power supply testing and verification device includes all the contents of Embodiment 3. In addition, the inner wall of the shielded test box 100 is coated with an anti-static coating. The front panel of the shielded test box 100 is provided with a signal input interface 200 and an ammeter 210. The front operation panel of the shielded test box 100 has a leakage current protector 230 and an indicator light 220. Universal wheels 240 are installed at the four corners of the bottom of the shielded test box 100. The universal wheels 240 are provided with a locking structure. The data acquisition and processing module 330 also includes a data storage unit. The data storage unit is a built-in solid-state hard disk used to store test data. The overvoltage protection circuit uses a comparator and a relay. When the input voltage is detected to exceed the set safety threshold, the power input is cut off. The overcurrent protection circuit uses a Hall current sensor and a current limiting circuit to monitor the current in the circuit in real time. When the current exceeds the set safety value, the current output is automatically limited. The leakage current protection circuit uses a leakage current sensor to detect leakage in the circuit. When leakage is detected, the power is cut off.
[0040] In the above embodiments, it should be noted that the anti-static coating on the inner wall of the shielded test chamber 100 prevents electrostatic interference with the test signal; the signal input interface 200 on the front panel is used to connect the power supply signal to be tested; the ammeter 210 monitors the circuit current in real time; the indicator light 220 displays the working status of the device; the leakage current protector 230 ensures electrical safety; the casters 240 facilitate the movement and fixation of the device; the data acquisition and processing module 330 has a newly added data storage unit to store the test data; the overvoltage protection circuit uses a comparator and a relay to cut off the power supply when the input voltage exceeds the set threshold; the overcurrent protection circuit monitors in real time and limits the output when the current exceeds the standard through a Hall current sensor and a current limiting circuit; the leakage current protection circuit cuts off the power supply when it detects leakage current with the help of a leakage current sensor.
[0041] The technical effects achieved by the above embodiments are as follows: the functionality and safety of the testing and verification device are further improved; the design of the anti-static coating and signal input interface optimizes the testing environment and ease of operation; the data storage unit enables reliable storage of test data, facilitating subsequent traceability and analysis; and the specific working mechanism of the multiple protection circuits greatly improves the device's ability to cope with electrical anomalies, ensuring the safety of personnel and equipment.
[0042] Example 5
[0043] like Figs. 1-3 As shown, a high-voltage high-frequency pulse power supply testing and verification device includes all the contents of Embodiment 4. In addition, a support plate 120 is fixedly installed on the inner wall of the shielded test box 100, a cooling fan 130 is fixedly installed on the inner wall of the support plate 120, an electromagnetic shielding mesh is installed at the air outlet of the cooling fan 130, a breathable mesh plate 140 is fixedly installed on the side wall of the shielded test box 100, and a top plate 110 is provided on the top of the shielded test box 100. The top plate 110 is a breathable plate.
[0044] The technical effects achieved by the above embodiments are as follows: the support plate 120 on the inner wall of the shielded test box 100 supports and fixes the cooling fan 130, the cooling fan 130 dissipates the heat generated by the device during operation, and the electromagnetic shielding mesh at the air outlet prevents external electromagnetic interference from entering during the heat dissipation process; the breathable mesh plate on the side wall and the breathable plate 110 on the top assist air circulation, forming a good heat dissipation channel, ensuring that the test device operates at a suitable temperature and maintaining the stable performance of each module.
[0045] The technical effects achieved by the above embodiments are as follows: by optimizing the heat dissipation structure, the problem of heat accumulation caused by long-term operation of the device is solved, avoiding the degradation of module performance or failure due to excessive temperature, ensuring that the test and verification device can operate continuously, stably and reliably, and extending the service life of the device.
[0046] Working principle: When used by those skilled in the art, the shielded test box 100, with its double-layer metal structure and electromagnetic shielding material filled in between, combined with the antistatic coating on the inner wall, isolates external electromagnetic and electrostatic interference; the power signal to be tested is connected through the signal input interface 200, the ammeter 210 monitors the current, the indicator light 220 displays the status, the leakage current protector 230 ensures safety, and the casters 240 facilitate movement and fixation. In the testing device, the high-voltage probe in the high-voltage high-frequency pulse acquisition module 310 has a voltage division ratio of 1000:1, an input capacitance of 1.5pF, a rise time of less than 500ps, a bandwidth of greater than 1GHz, and a high-frequency sampling circuit with a sampling rate of 10GS / s and a resolution of 12 bits. The acquired signal is processed by the preamplifier, multi-stage LC filter, and precision resistor network attenuator in the signal conditioning module 320 before being transmitted to the data acquisition and processing module 330. The FPGA controls the sampling buffer, the DSP calculates the parameters, and the data storage unit stores the data. At the same time, the overvoltage protection circuit, overcurrent protection circuit, and leakage protection circuit of the safety protection module 340 monitor in real time and activate the protection when abnormal. The cooling fan 130 fixed on the support plate 120, together with the electromagnetic shielding mesh, the ventilated mesh plate 140, and the ventilated top plate 110, ensures good heat dissipation of the device, realizing a complete test and verification process for high-voltage high-frequency pulse power signals from acquisition, processing to storage and safety assurance.
Claims
1. A high-voltage high-frequency pulse power supply testing and verification device, characterized in that: The shielding test box (100) adopts a double-layer metal structure, with the inner layer being made of aluminum alloy and the outer layer being made of stainless steel, and electromagnetic shielding material filling the space between the two layers. The testing device includes a circuit board (300), on the outer wall of which a high-voltage high-frequency pulse acquisition module (310), a signal conditioning module (320), a data acquisition and processing module (330), and a safety protection module (340) are fixedly installed. The high-voltage high-frequency pulse acquisition module (310) includes a high-voltage probe and a high-frequency sampling circuit.
2. The high-voltage high-frequency pulse power supply testing and verification device according to claim 1, characterized in that, The circuit board (300) is installed on the inner wall of the shielded test box (100). The voltage divider ratio of the high voltage probe is 1000:1, the input capacitance is 1.5pF, the rise time is less than 500ps, the bandwidth is greater than 1GHz, and the sampling rate of the high frequency sampling circuit is 10GS / s with a resolution of 12 bits.
3. The high-voltage high-frequency pulse power supply testing and verification device according to claim 1, characterized in that, The signal conditioning module (320) is connected to the high-voltage high-frequency pulse acquisition module (310). The signal conditioning module includes a preamplifier, a filter, and an attenuator. The gain-bandwidth product of the preamplifier is greater than 1 GHz. The filter is a multi-stage LC filter. The attenuator uses a precision resistor network.
4. The high-voltage high-frequency pulse power supply testing and verification device according to claim 1, characterized in that, The data acquisition and processing module (330) is connected to the signal conditioning module (320). The data acquisition and processing module (330) includes an FPGA and a DSP. The FPGA is used to control data acquisition and buffering, and the DSP is used for data processing and parameter calculation.
5. The high-voltage high-frequency pulse power supply testing and verification device according to claim 1, characterized in that, The safety protection module (340) is connected to the high-voltage high-frequency pulse acquisition module (310), the signal conditioning module (320), and the data acquisition and processing module (330). The safety protection module (340) includes an overvoltage protection circuit, an overcurrent protection circuit, and a leakage protection circuit.
6. The high-voltage high-frequency pulse power supply testing and verification device according to claim 5, characterized in that, The inner wall of the shielded test box (100) is coated with an antistatic coating. The front panel of the shielded test box (100) is equipped with a signal input interface (200) and an ammeter (210). The front operation panel of the shielded test box (100) is equipped with a leakage current protector (230) and an indicator light (220). The four corners of the bottom of the shielded test box (100) are all equipped with casters (240), and the casters (240) are equipped with a locking structure.
7. The high-voltage high-frequency pulse power supply testing and verification device according to claim 6, characterized in that, The data acquisition and processing module (330) also includes a data storage unit, which is a built-in solid-state drive used to store test data. The overvoltage protection circuit uses a comparator and a relay to cut off the power input when the input voltage exceeds the set safety threshold.
8. The high-voltage high-frequency pulse power supply testing and verification device according to claim 7, characterized in that, The overcurrent protection circuit uses a Hall current sensor and a current limiting circuit to monitor the current in the circuit in real time. When the current exceeds the set safety value, the current output is automatically limited. The leakage protection circuit uses a leakage sensor to detect leakage in the circuit. When leakage is detected, the power supply is cut off.
9. The high-voltage high-frequency pulse power supply testing and verification device according to claim 1, characterized in that, A support plate (120) is fixedly installed on the inner wall of the shielded test box (100). A cooling fan (130) is fixedly installed on the inner wall of the support plate (120). An electromagnetic shielding mesh is installed at the air outlet of the cooling fan (130). A breathable mesh plate (140) is fixedly installed on the side wall of the shielded test box (100). A top plate (110) is provided on the top of the shielded test box (100). The top plate (110) is a breathable plate.