CN115389886A - Withstand voltage test system for electronic components - Google Patents
Withstand voltage test system for electronic components Download PDFInfo
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- CN115389886A CN115389886A CN202211212771.8A CN202211212771A CN115389886A CN 115389886 A CN115389886 A CN 115389886A CN 202211212771 A CN202211212771 A CN 202211212771A CN 115389886 A CN115389886 A CN 115389886A
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- voltage
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- power supply
- voltage power
- upper computer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention relates to the field of electronic component testing, and particularly provides a withstand voltage testing system for electronic components, which comprises a testing tool, a high-voltage power supply, a controller, a temperature sensor, a humidity sensor, a voltage converter, a collecting card and an upper computer, wherein the testing tool is connected with the high-voltage power supply; the test tool is used for fixing the tested component; the high-voltage power supply is used for receiving a control signal of the controller; the temperature sensor and the humidity sensor are used for converting the environmental temperature and humidity information into electric signals and then sending the electric signals to the controller; the voltage converter is used for attenuating the voltage output by the high-voltage power supply to be low voltage; the acquisition card is used for acquiring voltage data converted by the voltage converter; the upper computer is used for high-voltage power control, temperature and humidity real-time monitoring, data acquisition and data storage. The test system can carry out voltage withstanding test on the electronic components, and meets the requirements of recording, storing and comparing test data of secondary screening of the electronic components.
Description
Technical Field
The invention relates to the technical field of electronic component testing, in particular to a withstand voltage testing system for an electronic component.
Background
With the continuous progress of science and technology, electronic components are used as indispensable important components of electronic products, large and small mechanical equipment and instruments and are widely applied, and the performance indexes of the electronic components directly influence the quality of the whole product or equipment, so that electronic component manufacturers need to test various index parameters of the product before the product leaves a factory, and users can default the obtained product to meet the index parameters described in a technical manual.
In various performance tests of electronic components, the voltage tolerance between pins, namely the withstand voltage test of the electronic components, is an important index for checking whether the performance of the electronic components is qualified or not; due to lightning strike, misoperation, failure or improper parameter matching and the like, the voltage of some parts in the system is often increased abnormally in the operation of an electronic system, and the voltage resistance test of electronic components mainly considers the bearing capacity of the electronic components under abnormal high voltage.
In some projects with higher requirements on reliability, users need to perform secondary screening on electronic components, and perform more detailed testing and recording on important index parameters of the important electronic components so as to ensure the reliability of the whole electronic components after the electronic components are installed as far as possible, and voltage withstanding testing becomes a test project which needs to be focused on by most of the electronic components.
Therefore, how to design a voltage withstanding test system for electronic components, which can meet the requirements of recording, storing, comparing and the like of test data for secondary screening of electronic components by users under highly reliable application, is a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the problems and provides a withstand voltage test system for electronic components, which can meet the requirements of users on recording, storing, comparing and the like of test data of secondary screening of the electronic components by carrying out withstand voltage test on the electronic components through a test tool, a high-voltage power supply, a controller, a temperature sensor, a humidity sensor, a voltage converter, a collection card and an upper computer.
In order to achieve the purpose, the invention provides the following technical scheme: a voltage withstanding test system for electronic components comprises a test tool, a high-voltage power supply, a controller, a temperature sensor, a humidity sensor, a voltage converter, an acquisition card and an upper computer; the test tool is used for fixing the tested component and electrically connecting the tested component with the high-voltage power supply; the high-voltage power supply is electrically connected with the controller and receives a control signal of the controller; the temperature sensor and the humidity sensor are electrically connected with the controller and used for sending the environmental temperature and humidity information to the controller; the voltage converter is electrically connected with the high-voltage power supply and is used for attenuating the voltage output by the high-voltage power supply to be low voltage; the acquisition card is electrically connected with the voltage converter and is used for acquiring voltage data converted by the voltage converter; the upper computer is simultaneously electrically connected with the controller and the acquisition card and is used for high-voltage power supply control, temperature and humidity real-time monitoring, data acquisition and data storage.
Preferably, the test tool comprises a clamping piece and a binding post; the clamping piece is used for clamping and fixing the element to be measured; the wiring terminal is used for leading out a pin to be tested of the tested component, and the pin to be tested is connected to the output end of the high-voltage power supply from the wiring terminal through a lead.
Preferably, the upper computer comprises a control module, a display module, a communication module and a storage module; the control module is used for receiving a control instruction of a tester and distributing the instruction to the controller or the acquisition card; the display module is used by a tester in a man-machine interaction interface mode; the communication module is used for communicating with the controller and the acquisition card; the storage module is used for storing the voltage data acquired by the acquisition card.
Preferably, the upper computer is connected with the controller through RS232, and the controller receives a control instruction sent by a tester from the upper computer and controls the high-voltage power supply.
Preferably, the high-voltage power supply is connected with the controller through a GPIO (general purpose input/output) and an RS232, and the working state information of the high-voltage power supply returns to the controller through an RS232 bus and is sent to an upper computer by the controller for monitoring by a tester.
Preferably, temperature sensor, humidity transducer are connected through RS232 with the controller, and temperature sensor and humidity transducer convert ambient temperature and ambient humidity into the signal of telecommunication respectively and with signal of telecommunication digital back through RS232 bus transmission to controller, the controller is handled the signal of telecommunication and is given the host computer with ambient temperature and humidity data transmission in order to show.
Preferably, an input pin of the voltage converter is connected in parallel with the output end of the high-voltage power supply through a high-voltage-resistant coaxial line; the voltage converter has an isolation function, and the input interface of the voltage converter has a high input impedance.
Preferably, the output pin of the voltage converter is coaxially connected with the input pin of the acquisition card; the acquisition card is connected with the upper computer through the Ethernet port, and the voltage output by the voltage converter is acquired by the acquisition card in real time and the acquired data is sent to the upper computer through the Ethernet port.
Preferably, the human-computer interaction interface issues the test instruction in a touch or key control mode and can display test information, instruction feedback information and alarm information.
Preferably, the high voltage output and shutdown of the high voltage power supply, the output of the high voltage pulse, and the width of the high voltage output pulse are controlled by a controller.
The invention has the beneficial effects that:
the testing system comprises a testing tool, a high-voltage power supply, a controller, a temperature sensor, a humidity sensor, a voltage converter, an acquisition card and an upper computer, wherein a component to be tested is fixed through the testing tool, a testing patch cord is led out, the controller receives a testing instruction of the upper computer to control the output and the closing of the high-voltage power supply, the voltage converter is used for conditioning signals, testing data are acquired to the upper computer through the acquisition card, and testing personnel are assisted to monitor a testing environment through the temperature sensor and the humidity sensor; according to the scheme, the electronic components can be screened secondarily according to the needs of users, the important index parameters of the important electronic components are tested and recorded in detail, and the operation reliability of the whole machine after the electronic components are installed is guaranteed to the greatest extent.
Drawings
Fig. 1 is a block diagram of a test system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to fig. 1 and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
A withstand voltage test system for electronic components comprises a test tool, a high-voltage power supply, a controller, a temperature sensor, a humidity sensor, a voltage converter, a collection card and an upper computer.
The test tool is used for fixing the tested component and electrically connecting the tested component with the high-voltage power supply, and the test tool and the high-voltage power supply are preferably connected by adopting a high-voltage-resistant coaxial cable; the test tool comprises a clamping piece and a binding post; the clamping piece is used for clamping and fixing the element to be measured; the wiring terminal is used for leading out a pin to be tested of the tested component, and the pin to be tested is connected to the output end of the high-voltage power supply from the wiring terminal through a lead.
The high-voltage power supply is electrically connected with the controller through the GPIO and the RS232 and receives control signals of the controller, wherein the control signals comprise set voltage, set current, switch states and the like; the controller receives an instruction of the upper computer, controls the output and the closing of the high-voltage power supply, controls the output of high-voltage pulse, adjusts the width of the high-voltage output pulse and the like; working state information of the high-voltage power supply, such as real-time output voltage, output current, switching state and the like fed back by the high-voltage power supply, is returned to the controller through the RS232 bus and is sent to an upper computer by the controller for monitoring by a tester; the high-voltage power supply adopts a direct current 0-2500V adjustable power supply.
The temperature sensor and the humidity sensor are electrically connected with the controller through RS232 and used for sending the environmental temperature and humidity information to the controller; specifically be, temperature sensor and humidity transducer convert ambient temperature and ambient humidity into the signal of telecommunication respectively and with signal of telecommunication digital back through RS232 bus transmission to controller, the controller is handled the signal of telecommunication and is given the host computer with the demonstration with ambient temperature and humidity data transmission, when ambient temperature or ambient humidity surpassed standard, the host computer will indicate the tester.
The voltage converter is electrically connected with the high-voltage power supply and used for attenuating the voltage output by the high-voltage power supply into low voltage, has an isolation function and can isolate and convert the high voltage into low voltage; the input interface of the voltage converter has high input impedance, and the input pin of the voltage converter is connected with the output end of the high-voltage power supply in parallel through a high-voltage-resistant coaxial line.
The acquisition card is electrically connected with the voltage converter and is used for acquiring voltage data converted by the voltage converter; the output pin of the voltage converter is coaxially connected with the input pin of the acquisition card; the acquisition card is connected with the upper computer through the Ethernet port, the voltage output by the voltage converter is acquired by the acquisition card in real time and the acquired data is sent to the upper computer through the Ethernet port, and the upper computer stores the acquired data.
The upper computer is simultaneously electrically connected with the controller and the acquisition card and is used for performing high-voltage power supply control, real-time temperature and humidity monitoring, data acquisition, data storage and the like; the upper computer is connected with the controller through RS232, and the controller receives a control instruction sent by a tester from the upper computer; the upper computer is connected with the acquisition card through an Ethernet bus.
The upper computer comprises a control module, a display module, a communication module and a storage module; the control module is used for receiving a control instruction of a tester, reading information such as real-time voltage, current, working state, environmental state and the like, and distributing the instruction to the controller or the acquisition card; the display module is used by a tester in a human-computer interaction interface mode, the upper computer runs the human-computer interaction interface, the human-computer interaction interface issues a test instruction in a touch control or key control mode, receives and stores data transmitted by the acquisition card and can review the data, the upper computer interface displays test information, instruction feedback and alarm, overvoltage and overcurrent protection parameters can be set, output voltage and output current limit values are set, the system is set to be in a high-voltage pulse working mode, the width of a high-voltage pulse can be adjusted, temperature and humidity information is displayed in real time, and an alarm is given if the temperature or the humidity exceeds the standard; the communication module is used for communicating with the controller and the acquisition card; the storage module is used for storing the voltage data acquired by the acquisition card.
When the device is used, the tested device is fixed through the test tool, the pin of the tested device is electrically connected with the high-voltage power supply, and the upper computer is started to carry out voltage withstanding test on the tested device; at the moment, the temperature sensor and the humidity sensor send the ambient temperature and ambient humidity information to the controller, the voltage converter converts the high voltage of the high voltage power supply into low voltage in an isolated mode, the acquisition card acquires the voltage data converted by the voltage converter, and the upper computer controls the high voltage power supply, monitors the temperature and the humidity in real time, and stores and feeds back the data acquired by the acquisition card.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be taken as limiting the invention. Variations, modifications, substitutions and alterations of the above-described embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A withstand voltage test system of an electronic component is characterized by comprising a test tool, a high-voltage power supply, a controller, a temperature sensor, a humidity sensor, a voltage converter, a collection card and an upper computer;
the test tool is used for fixing the tested component and electrically connecting the tested component with the high-voltage power supply;
the high-voltage power supply is electrically connected with the controller and receives a control signal of the controller;
the temperature sensor and the humidity sensor are electrically connected with the controller and used for sending the environmental temperature and humidity information to the controller;
the voltage converter is electrically connected with the high-voltage power supply and is used for attenuating the voltage output by the high-voltage power supply to be low voltage;
the acquisition card is electrically connected with the voltage converter and is used for acquiring voltage data converted by the voltage converter;
and the upper computer is simultaneously electrically connected with the controller and the acquisition card and is used for high-voltage power supply control, temperature and humidity real-time monitoring, data acquisition and data storage.
2. A withstand voltage testing system of an electronic component according to claim 1, wherein the testing tool comprises a clamping piece and a binding post; the clamping piece is used for clamping and fixing the element to be measured; the wiring terminal is used for leading out a pin to be tested of the tested component, and the pin to be tested is connected to the output end of the high-voltage power supply from the wiring terminal through a lead.
3. The system for testing the withstand voltage of the electronic component as claimed in claim 2, wherein the upper computer comprises a control module, a display module, a communication module and a storage module; the control module is used for receiving a control instruction of a tester and distributing the instruction to the controller or the acquisition card; the display module is used by a tester in a man-machine interaction interface mode; the communication module is used for communicating with the controller and the acquisition card; the storage module is used for storing the voltage data acquired by the acquisition card.
4. A withstand voltage testing system of an electronic component according to claim 3, wherein the upper computer is connected to the controller through RS232, and the controller receives a control instruction sent by a tester from the upper computer and controls the high-voltage power supply.
5. A voltage withstanding test system for electronic components as claimed in claim 4, wherein the high voltage power supply is connected to the controller via a GPIO and an RS232, and the operating state information of the high voltage power supply is returned to the controller via an RS232 bus and sent to the upper computer by the controller for monitoring by the tester.
6. A voltage-withstanding test system for electronic components according to claim 5, wherein the temperature sensor and the humidity sensor are connected with the controller through RS232, the temperature sensor and the humidity sensor respectively convert the ambient temperature and the ambient humidity into electric signals, digitize the electric signals and send the electric signals to the controller through an RS232 bus, and the controller processes the electric signals and sends the ambient temperature and humidity data to the upper computer for display.
7. The system for testing the withstand voltage of the electronic component as claimed in any one of claims 1 to 6, wherein the input pin of the voltage converter is connected in parallel with the output terminal of the high-voltage power supply through a high-voltage-resistant coaxial line; the voltage converter has an isolation function, and the input interface of the voltage converter has a high input impedance.
8. The system for testing the withstand voltage of the electronic component according to claim 7, wherein an output pin of the voltage converter is coaxially connected with an input pin of the acquisition card; the acquisition card is connected with the upper computer through the Ethernet port, and the voltage output by the voltage converter is acquired by the acquisition card in real time and the acquired data is sent to the upper computer through the Ethernet port.
9. The system for testing withstand voltage of electronic components according to claim 8, wherein the human-computer interface issues a test instruction in a touch or key control manner and can display test information, instruction feedback information and alarm information.
10. A withstand voltage testing system of an electronic component as claimed in claim 9, wherein the high voltage output and shutdown of the high voltage power supply, the output of the high voltage pulse, and the width of the high voltage output pulse are controlled by a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211212771.8A CN115389886A (en) | 2022-09-30 | 2022-09-30 | Withstand voltage test system for electronic components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211212771.8A CN115389886A (en) | 2022-09-30 | 2022-09-30 | Withstand voltage test system for electronic components |
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| Publication Number | Publication Date |
|---|---|
| CN115389886A true CN115389886A (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211212771.8A Pending CN115389886A (en) | 2022-09-30 | 2022-09-30 | Withstand voltage test system for electronic components |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116008746A (en) * | 2022-12-29 | 2023-04-25 | 北京中科科仪股份有限公司 | Withstand voltage testing arrangement for electron gun |
-
2022
- 2022-09-30 CN CN202211212771.8A patent/CN115389886A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116008746A (en) * | 2022-12-29 | 2023-04-25 | 北京中科科仪股份有限公司 | Withstand voltage testing arrangement for electron gun |
| CN116008746B (en) * | 2022-12-29 | 2023-11-03 | 北京中科科仪股份有限公司 | Withstand voltage testing arrangement for electron gun |
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