CN211293117U - Thermal response characteristic test system - Google Patents
Thermal response characteristic test system Download PDFInfo
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- CN211293117U CN211293117U CN201922339461.2U CN201922339461U CN211293117U CN 211293117 U CN211293117 U CN 211293117U CN 201922339461 U CN201922339461 U CN 201922339461U CN 211293117 U CN211293117 U CN 211293117U
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Abstract
The utility model discloses a thermal response characteristic test system, including host computer, switch, trigger device controller, test module, monitoring module, muffle furnace and power management unit, the host computer includes PC and industrial computer; the muffle furnace comprises a high-voltage wire harness and a clamp, the clamp is positioned in the muffle furnace and used for clamping a tested element, one end of the high-voltage wire harness is connected with the tested element, and the other end of the high-voltage wire harness is connected with a manual high-low voltage change-over switch; the upper computer is connected with the switch through a local area network, the switch is further connected with the trigger device controller, the testing module, the monitoring module and the muffle furnace, and the testing module is further connected with the trigger device controller and the manual high-low voltage change-over switch; and the power supply management unit supplies power to the test system.
Description
Technical Field
The utility model relates to an electronic component testing technique, especially thermal response characteristic test system.
Background
With the continuous development of various electronic devices, the electronic devices have gradually penetrated into the fields of civil use, industry, military and the like, especially the fields of industry and military, and the reliability requirements of the electronic devices are extremely high. Because the electronic equipment is increasingly miniaturized, the heat dissipation of the electronic element is influenced to a certain extent, and the electronic element works at a high temperature for a long time, so that the test research on the thermal response performance of the electronic element is a necessary measure for ensuring the reliability of the electronic equipment.
At present, more attention is paid to heat response related tests of electronic elements, and the influence of heat dissipation on devices in the miniaturization process is focused, and the attention paid to the related performance influence of high temperature on the electronic elements is relatively less; and most test systems are directed to a single electronic component, so that it is desirable that one test system can realize the test of the high-temperature performance influence of various electronic components without modification.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's not enough, provide the thermal response characteristic test system, can realize multiple electronic component's thermal response test.
The purpose of the utility model is realized through the following technical scheme:
the thermal response characteristic test system comprises an upper computer, a switch, a trigger device controller, a test module, a monitoring module, a muffle furnace and a power supply management unit, wherein the upper computer comprises a PC (personal computer) and an industrial computer;
the muffle furnace comprises a high-voltage wire harness and a clamp, the clamp is positioned in the muffle furnace and used for clamping a tested element, one end of the high-voltage wire harness is connected with the tested element, and the other end of the high-voltage wire harness is connected with a manual high-low voltage change-over switch;
the upper computer is connected with the switch through a local area network, the switch is further connected with the trigger device controller, the testing module, the monitoring module and the muffle furnace, and the testing module is further connected with the trigger device controller and the manual high-low voltage change-over switch;
and the power supply management unit supplies power to the test system.
Furthermore, the test module comprises a high-voltage test unit and a low-voltage test unit, and the high-voltage test unit and the low-voltage test unit are both connected with the switch;
the high-voltage testing unit is also connected with the triggering device controller through a triggering/releasing device, and the triggering/releasing device is also connected with a current loop;
the low-pressure test unit is also connected with the trigger device controller through a relief device;
the triggering/discharging device and the discharging device are both connected with the manual high-low voltage change-over switch.
Further, the high-voltage test unit comprises a high-voltage switch matrix, a high-voltage insulation resistance meter, a withstand voltage tester, a digital microammeter, a high-voltage probe and an oscilloscope;
the high-voltage insulation resistance meter and the oscilloscope are connected with the switch through a GPIB interface, the high-voltage insulation resistance meter is connected with the high-voltage switch matrix, the high-voltage switch matrix is connected with the trigger/release device, and the oscilloscope is connected with the current loop;
the voltage resistance tester, the digital microammeter and the high-voltage switch matrix are all connected with the switch through RS232 interfaces, the voltage resistance tester is connected with the high-voltage switch matrix and the high-voltage probe, the digital microammeter is connected with the voltage resistance tester, the high-voltage switch matrix and the high-voltage probe, and the high-voltage probe is also connected with the oscilloscope;
the triggering/discharging device in the high-voltage testing unit is connected with the manual high-low voltage change-over switch.
Furthermore, the low-voltage testing unit comprises a low-voltage switch matrix, a program-controlled power supply, a resistance meter and an LCR digital bridge;
the program-controlled power supply, the resistance meter and the LCR digital bridge are all connected with the switch through GPIB interfaces, and the program-controlled power supply, the resistance meter and the LCR digital bridge are all connected with the low-voltage switch matrix;
the low-voltage switch matrix is connected with the switch through an RS232 interface, the low-voltage switch matrix is further connected with the relief device, and the relief device is connected with the manual high-low voltage change-over switch.
Furthermore, the high-voltage test unit further comprises a first protection resistor and a second protection resistor, the first protection resistor is located between the high-voltage insulation resistance meter and the high-voltage switch matrix, and the second protection resistor is located between the withstand voltage tester and the high-voltage switch matrix.
Furthermore, the monitoring module comprises a temperature and humidity detector and a warning light which are connected with each other, the temperature and humidity detector is connected with the switch through a local area network, and the temperature and humidity detector is further connected with the muffle furnace.
Further, the switch is also connected with a KVM and a printer.
Further, the test system further comprises a tail gas treatment device, and the tail gas treatment device is connected with an exhaust port of the muffle furnace.
The utility model has the advantages of it is following:
1. the test system adopts a modularized integration mode, can realize the thermal response test of various electronic elements, and strictly distinguishes high-voltage and low-voltage test modules, so that the test safety is ensured, and the test precision is not influenced;
2. the test system further reduces the manual participation degree, can avoid the influence and error caused by manual operation while having higher efficiency, and enables the test to be more accurate.
Drawings
Fig. 1 is a schematic structural diagram of a thermal response characteristic testing system of the present invention;
fig. 2 is a circuit diagram of the thermal response characteristic testing system of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following description will clearly describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model provides a thermal response characteristic test system, including host computer, switch, trigger device controller, test module, monitoring module, muffle furnace and power management unit, the host computer includes PC and industrial computer, and this host computer is used for realizing the storage, processing and the analysis to relevant data; the muffle furnace provides a specified temperature environment for the tested element placed in the muffle furnace; the muffle furnace comprises a high-voltage wire harness and a clamp, the clamp is positioned in the muffle furnace and used for clamping a tested element, one end of the high-voltage wire harness is connected with the tested element, and the other end of the high-voltage wire harness is connected with a manual high-low voltage change-over switch; and the power supply management unit supplies power to the test system.
The upper computer is connected with the switch through a local area network, the switch is further connected with the trigger device controller, the testing module, the monitoring module and the muffle furnace, and the testing module is further connected with the trigger device controller and the manual high-low voltage change-over switch; the trigger device controller and the muffle furnace are connected with the switch through RS232 interfaces.
The test module comprises a high-voltage test unit and a low-voltage test unit, and the high-voltage test unit and the low-voltage test unit are both connected with the switch; the high-voltage testing unit is also connected with the triggering device controller through a triggering/releasing device, and the triggering/releasing device is also connected with a current loop; the low-pressure test unit is also connected with the trigger device controller through a relief device; the triggering/discharging device and the discharging device are both connected with the manual high-low voltage change-over switch.
The triggering/discharging device is used for capacitance discharge current testing and discharging residual electric energy of the tested element, and the discharging device is only used for discharging the residual electric energy of the tested element; the triggering/discharging device is also connected with the manual high-low voltage change-over switch through a current loop.
It should be noted that the high-voltage testing unit comprises 3 high-voltage tested channels, each high-voltage tested channel is provided with the triggering/releasing device and the current loop, and each high-voltage tested channel forms a complete tested loop; the low-pressure test unit comprises 20 low-pressure tested channels, each low-pressure tested channel is provided with a relief device, and each low-pressure tested channel forms a complete tested loop.
The high-voltage testing unit comprises a high-voltage switch matrix, a high-voltage insulation resistance meter, a withstand voltage tester, a digital microammeter, a high-voltage probe and an oscilloscope; the high-voltage insulation resistance meter and the oscilloscope are connected with the switch through a GPIB interface, the high-voltage insulation resistance meter is connected with the high-voltage switch matrix, the high-voltage switch matrix is connected with the trigger/release device, and the oscilloscope is connected with the current loop; the voltage resistance tester, the digital microammeter and the high-voltage switch matrix are all connected with the switch through RS232 interfaces, the voltage resistance tester is connected with the high-voltage switch matrix and the high-voltage probe, the digital microammeter is connected with the voltage resistance tester, the high-voltage switch matrix and the high-voltage probe, and the high-voltage probe is also connected with the oscilloscope; the triggering/discharging device in the high-voltage testing unit is connected with the manual high-low voltage change-over switch.
The high-voltage insulation resistance meter can output high voltage to measure the insulation resistance value of the capacitor; the withstand voltage tester is directly powered by the power management unit, can be used for testing the withstand voltage degree between two electrodes of a resistor, a capacitor and a transformer, and can also charge the capacitor in a capacitor discharge test; the oscilloscope monitors the output voltage of the withstand voltage tester through the high-voltage probe, and can also be matched with a current loop to measure the discharge current.
The low-voltage testing unit comprises a low-voltage switch matrix, a program-controlled power supply, a resistance meter and an LCR digital bridge; the program-controlled power supply, the resistance meter and the LCR digital bridge are all connected with the switch through GPIB interfaces, and the program-controlled power supply, the resistance meter and the LCR digital bridge are all connected with the low-voltage switch matrix; the low-voltage switch matrix is connected with the switch through an RS232 interface, the low-voltage switch matrix is further connected with the relief device, and the relief device is connected with the manual high-low voltage change-over switch.
The program-controlled power supply provides constant-value power for the temperature-sensitive resistor to measure the power tolerance of the tested element; the resistance meter can measure the resistance value of the element to be measured with high precision and judge the sudden change condition of the element to be measured; the LCR digital bridge can measure the capacitance, the loss tangent angle, the equivalent series resistance and the inductance coefficient of the element to be measured.
The high voltage test unit further comprises a first protection resistor and a second protection resistor, the first protection resistor is located between the high voltage insulation resistance meter and the high voltage switch matrix, the second protection resistor is located between the withstand voltage tester and the high voltage switch matrix, and the first protection resistor and the second protection resistor can protect related instruments and equipment when the test is abnormal.
The monitoring module comprises a temperature and humidity detector and a warning lamp which are connected with each other, the temperature and humidity detector is connected with the switch through a local area network, and the temperature and humidity detector is further connected with the muffle furnace.
The switch is also connected to the KVM and the printer.
The test system further comprises a tail gas treatment device, and the tail gas treatment device is connected with the exhaust port of the muffle furnace.
Claims (8)
1. The thermal response characteristic test system is characterized by comprising an upper computer, a switch, a trigger device controller, a test module, a monitoring module, a muffle furnace and a power supply management unit, wherein the upper computer comprises a PC (personal computer) and an industrial computer;
the muffle furnace comprises a high-voltage wire harness and a clamp, the clamp is positioned in the muffle furnace and used for clamping a tested element, one end of the high-voltage wire harness is connected with the tested element, and the other end of the high-voltage wire harness is connected with a manual high-low voltage change-over switch;
the upper computer is connected with the switch through a local area network, the switch is further connected with the trigger device controller, the testing module, the monitoring module and the muffle furnace, and the testing module is further connected with the trigger device controller and the manual high-low voltage change-over switch;
and the power supply management unit supplies power to the test system.
2. The thermal response characteristic testing system according to claim 1, wherein the testing module includes a high voltage testing unit and a low voltage testing unit, both of which are connected to the switch;
the high-voltage testing unit is also connected with the triggering device controller through a triggering/releasing device, and the triggering/releasing device is also connected with a current loop;
the low-pressure test unit is also connected with the trigger device controller through a relief device;
the triggering/discharging device and the discharging device are both connected with the manual high-low voltage change-over switch.
3. The thermal response characteristic test system according to claim 2, wherein the high voltage test unit comprises a high voltage switch matrix, a high voltage insulation resistance meter, a withstand voltage tester, a digital microammeter, a high voltage probe and an oscilloscope;
the high-voltage insulation resistance meter and the oscilloscope are connected with the switch through a GPIB interface, the high-voltage insulation resistance meter is connected with the high-voltage switch matrix, the high-voltage switch matrix is connected with the trigger/release device, and the oscilloscope is connected with the current loop;
the voltage resistance tester, the digital microammeter and the high-voltage switch matrix are all connected with the switch through RS232 interfaces, the voltage resistance tester is connected with the high-voltage switch matrix and the high-voltage probe, the digital microammeter is connected with the voltage resistance tester, the high-voltage switch matrix and the high-voltage probe, and the high-voltage probe is also connected with the oscilloscope;
the triggering/discharging device in the high-voltage testing unit is connected with the manual high-low voltage change-over switch.
4. The system according to claim 2, wherein the low voltage test unit comprises a low voltage switch matrix, a programmable power supply, a resistance meter and an LCR digital bridge;
the program-controlled power supply, the resistance meter and the LCR digital bridge are all connected with the switch through GPIB interfaces, and the program-controlled power supply, the resistance meter and the LCR digital bridge are all connected with the low-voltage switch matrix;
the low-voltage switch matrix is connected with the switch through an RS232 interface, the low-voltage switch matrix is further connected with the relief device, and the relief device is connected with the manual high-low voltage change-over switch.
5. The system according to claim 3, wherein the high voltage test unit further comprises a first protection resistor and a second protection resistor, the first protection resistor is located between the high voltage insulation resistance meter and the high voltage switch matrix, and the second protection resistor is located between the withstand voltage tester and the high voltage switch matrix.
6. The thermal response characteristic testing system according to claim 1, wherein the monitoring module comprises a temperature and humidity detector and a warning light which are connected with each other, the temperature and humidity detector is connected with the switch through a local area network, and the temperature and humidity detector is further connected with the muffle furnace.
7. The thermal response characteristic testing system of claim 1, wherein the switch is further connected to a KVM and a printer.
8. The system according to claim 1, further comprising an exhaust gas treatment device coupled to the exhaust of the muffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339461.2U CN211293117U (en) | 2019-12-23 | 2019-12-23 | Thermal response characteristic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922339461.2U CN211293117U (en) | 2019-12-23 | 2019-12-23 | Thermal response characteristic test system |
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| Publication Number | Publication Date |
|---|---|
| CN211293117U true CN211293117U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922339461.2U Active CN211293117U (en) | 2019-12-23 | 2019-12-23 | Thermal response characteristic test system |
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|---|---|
| CN (1) | CN211293117U (en) |
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- 2019-12-23 CN CN201922339461.2U patent/CN211293117U/en active Active
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