CN214225296U - Lightning surge testing device - Google Patents
Lightning surge testing device Download PDFInfo
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- CN214225296U CN214225296U CN202023205474.XU CN202023205474U CN214225296U CN 214225296 U CN214225296 U CN 214225296U CN 202023205474 U CN202023205474 U CN 202023205474U CN 214225296 U CN214225296 U CN 214225296U
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Abstract
The utility model relates to a lightning surge testing device, which is used for testing lightning surge of equipment to be tested and comprises a CPU main controller, a high-voltage module, an action main switch module, a waveform generation module, a waveform acquisition module, an input device, a display device, a storage device and an alarm device; the waveform generation module is connected with the equipment to be tested and applies surge pulse to the equipment to be tested, and the waveform acquisition module is connected with the equipment to be tested and acquires surge pulse waveform data before and after entering the equipment to be tested. Compared with the prior art, the utility model discloses a surge pulse waveform data before the collection entering test equipment and the surge pulse waveform data after passing through test equipment can carry out the analysis to the inefficacy process of test equipment in the test procedure, also can judge and analyze the anomaly in the test procedure, have improved high-pressure module, action main switch module, waveform acquisition module, have promoted thunderbolt surge testing arrangement's performance.
Description
Technical Field
The utility model belongs to the technical field of lightning surge test and specifically relates to a lightning surge testing arrangement is related to.
Background
With the progress of society and technology, people pay more and more attention to safety and product stability when using electronic equipment. The electronic equipment can be damaged to a certain extent due to surge generated by equipment switches, electrostatic discharge, circuit faults, lightning strikes and the like, wherein the damage of the lightning strikes to the electronic equipment is the largest, so that the testing of the lightning surge resistance of the electronic equipment is an important factor for evaluating the product performance of the electronic equipment. However, in the existing lightning surge test items of electronic products, only a test result is given, the change of surge pulses in the test process cannot be monitored, the influence of different surge pulses on the electronic products cannot be known, and when abnormal conditions such as short circuit and open circuit occur in the test process of equipment to be tested, specific conditions cannot be known.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thunderbolt surge testing arrangement in order to overcome the defect that above-mentioned prior art exists, through waveform acquisition module, gather the surge pulse waveform data that gets into before the equipment to be tested and the surge pulse waveform data through the equipment to be tested after, can carry out the analysis to the inefficacy process of the equipment to be tested in the test procedure, also can judge and analyze the unusual in the test procedure.
The purpose of the utility model can be realized through the following technical scheme:
a lightning surge testing device is used for testing lightning surge of equipment to be tested and comprises a CPU main controller, a high-voltage module, an action main switch module, a waveform generation module and a waveform acquisition module, wherein the CPU main controller is respectively connected with the high-voltage module, the action main switch module, the waveform generation module and the waveform acquisition module;
the CPU controller is connected with the CPU main controller through a communication interface;
the high-voltage module comprises a capacitor, a charging circuit and a voltage feedback circuit, wherein the voltage feedback circuit is used for acquiring the voltage U of the capacitorCAnd sends it to a CPU master controller, which is used for controlling the voltage U according to the capacitanceCAnd set voltage U of CPU master controllerSTurning on or off the charging circuit;
the action main switch module comprises a switch driving circuit and a main switch, wherein the switch driving circuit is used for switching on or off the main switch according to a control signal of the CPU main controller, and the main switch is configured to switch the high voltage of the high-voltage module into the waveform generation module;
the waveform acquisition module comprises a voltage attenuation circuit and a current attenuation circuit;
the input device is used for inputting a control command to the CPU master controller, and the control command comprises a set voltage US；
The display device is used for displaying working parameters of the lightning surge testing device, and the working parameters comprise a set voltage USAnd surge pulse waveform data;
the storage device is used for storing surge pulse waveform data;
the alarm device is used for sending out an alarm signal according to a control signal of the CPU main controller.
Further, the main switch is an IGBT.
Further, the surge pulse waveform data includes one or more of a voltage waveform peak value, a current waveform peak value, a voltage waveform rise time, a current waveform rise time, a voltage waveform half-peak time, and a current waveform half-peak time.
Further, the input device is a keyboard.
Further, the display device is a liquid crystal display screen.
Furthermore, the liquid crystal display screen is a touch screen.
Further, the storage device is a read-write nonvolatile memory.
Further, the storage device is a usb disk or other removable storage device.
Further, the storage device is a cloud storage platform.
Further, the alarm device is an audible and visual alarm.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) through the waveform acquisition module, the surge pulse waveform data before entering the equipment to be tested and the surge pulse waveform data after passing through the equipment to be tested are acquired, so that the failure process of the equipment to be tested in the test process can be analyzed, and the abnormity in the test process can also be judged and analyzed.
(2) Whether charge is accomplished through voltage feedback circuit detection high voltage module, degree of automation is high, and when appearing unusually in the test procedure, voltage feedback circuit returns the voltage value of CPU master controller also can appear unusually, and then can be by the outage stop test of CPU master controller to damage thunderbolt surge testing arrangement, promoted the security and the reliability of device.
(3) The switch driving circuit generates a driving signal, the main switch is turned on, the main switch can be turned on more quickly, and the main switch is prevented from being damaged due to high voltage.
(4) The waveform acquisition module comprises a voltage attenuation circuit and a current attenuation circuit, and can attenuate larger surge pulses so as to avoid damaging the circuit and a lightning surge testing device.
(5) The alarm device sends out an alarm signal according to the control signal of the CPU master controller, so that the abnormity appearing in the test process can be reminded to a user, and the safety and the reliability of the device are improved.
(6) The storage device automatically stores the surge pulse waveform data, so that the condition that an operator manually stores the surge pulse waveform data is avoided, and the surge pulse waveform data can be further analyzed.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a high voltage module;
reference numerals: 1. the device comprises a CPU main controller, 2, a high-voltage module, 21, a capacitor, 22, a charging circuit, 23, a voltage feedback circuit, 3, an action main switch module, 4, a waveform generation module, 5, a waveform acquisition module, 6, an input device, 7, a display device, 8, a storage device and 9 alarm devices.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1:
a lightning surge testing device is used for testing lightning surge of equipment to be tested, and comprises a CPU main controller 1, a high-voltage module 2, an action main switch module 3, a waveform generation module 4 and a waveform acquisition module 5, wherein the CPU main controller 1 is respectively connected with the high-voltage module 2, the action main switch module 3, the waveform generation module 4 and the waveform acquisition module 5, the action main switch module 3 is respectively connected with the high-voltage module 2 and the waveform generation module 4, the waveform generation module 4 is connected with equipment to be tested and used for applying surge pulse to the equipment to be tested, and the waveform acquisition module 5 is connected with the equipment to be tested and used for acquiring surge pulse waveform data before entering the equipment to be tested and surge pulse waveform data after passing through the equipment to be tested; the surge pulse waveform data includes one or more of a voltage waveform peak value, a current waveform peak value, a voltage waveform rise time, a current waveform rise time, a voltage waveform half-peak time, and a current waveform half-peak time. The CPU main controller 1, the high-voltage module 2, the action main switch module 3, the waveform generation module 4 and the waveform acquisition module 5 are common designs of the existing lightning surge testing device, and are not described again.
The lightning surge testing device also comprises an input device 6, a display device 6, a storage device 8 and an alarm device 9 which are connected with the CPU main controller 1.
As shown in fig. 2, the high voltage module 2 includes a capacitor 21, a charging circuit 22 and a voltage feedbackA circuit 23, a voltage feedback circuit 23 for collecting the voltage U of the capacitor 21CAnd sends it to the CPU master 1, the CPU master 1 being arranged to determine the voltage U of the capacitor 21CAnd a set voltage U of the CPU master 1STurning on the charging circuit 22 or turning off the charging circuit 22.
The action main switch module 3 includes a switch driving circuit for turning on or off the main switch according to a control signal of the CPU main controller 1, and a main switch configured to switch the high voltage of the high voltage module 2 into the waveform generating module 4. In this embodiment, the main switch is an IGBT. Through the switch driving circuit, the main switch can be switched on more quickly, and the main switch is prevented from being damaged due to high voltage.
The waveform acquisition module 5 comprises a voltage attenuation circuit and a current attenuation circuit; the large surge pulse can be attenuated to avoid damaging the circuit and lightning surge testing device.
The input device 6 is used for inputting control commands to the CPU master controller 1, the control commands comprise a set voltage US；
The display device 7 is used for displaying working parameters of the lightning surge testing device, and the working parameters comprise a set voltage USAnd surge pulse waveform data. The storage device 8 is used for storing surge pulse waveform data.
In this embodiment, the input device 6 and the display device 7 are integrated, and a liquid crystal display screen, which is a touch panel, is used. In other embodiments, a keyboard, a key circuit, or the like may be used as the input device 6, and an OLED display screen, or the like, may be used as the display device 7.
The storage device 8 is used for storing waveform data of the surge pulse. The storage device 8 is a readable and writable nonvolatile memory, and may also be a cloud storage platform. In this embodiment, the storage device 8 is a usb disk, and in other embodiments, the storage device 8 may be other removable storage devices.
The alarm device 9 is used for sending an alarm signal according to the control signal of the CPU main controller 1, and can remind a user of abnormity occurring in the test process. In this embodiment, the alarm device 9 is an audible and visual alarm.
When the lightning surge testing device is used for testing lightning surge of equipment to be tested, the main operation process is as follows:
the user inputs the set voltage U through the input device 6SThe CPU master 1 will conduct the charging circuit 22 to charge the capacitor 21, and detect the voltage U of the capacitor 21 through the voltage feedback circuit 23CIf U is presentC＝USThen the charging circuit 22 is turned off to complete the charging. During the whole test process, the CPU master controller 1 also receives the voltage U detected by the voltage feedback circuit 23CWhen the abnormal condition of the equipment to be tested occurs in the test process, the high voltage abnormality occurs, and at the moment, the CPU main controller 1 is powered off to stop the test, so that the loss is avoided.
When the CPU main controller 1 conducts the charging circuit 22 to charge the capacitor 21, a control signal is simultaneously sent to the switch driving circuit, and the switch driving circuit enters a preparation state; when the capacitor 21 is charged, the CPU master 1 sends the control signal to the switch driving circuit again, and the switch driving circuit generates the driving signal to turn on the main switch.
After the main switch is turned on, the high voltage of the high-voltage module 2 is connected to the waveform generating module 4, the output end of the waveform generating module 4 is connected to the equipment to be tested, and the surge pulse is applied to the equipment to be tested.
In order to test the performance of the device to be tested under different surge pulses, the set voltage U can be setSThe value of (a) is gradually changed from small to large, and the surge pulse is gradually increased.
The waveform acquisition module 5 acquires the surge pulse waveform data before entering the device to be tested and the surge pulse waveform data after passing through the device to be tested, can analyze the failure process of the device to be tested in the test process, records the transient voltage and the transient current before entering the device to be tested and the transient voltage and the transient current after entering the device to be tested, and analyzes the failure process of the device to be tested.
The anti-surge capacity of different equipment to be tested is different, and a user can set the highest value and the lowest value of surge pulse according to the anti-surge capacity of the equipment to be tested; if a certain item in the surge pulse waveform data acquired by the waveform acquisition module 5 is higher than the highest value or lower than the lowest value, the CPU master controller 1 can analyze whether the data is abnormal or not, and then alarm or perform other actions.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A lightning surge testing device is used for testing lightning surge of equipment to be tested and comprises a CPU main controller (1), a high voltage module (2), an action main switch module (3), a waveform generation module (4) and a waveform acquisition module (5), the CPU main controller (1) is respectively connected with the high-voltage module (2), the action main switch module (3), the waveform generation module (4) and the waveform acquisition module (5), the action main switch module (3) is respectively connected with the high-voltage module (2) and the waveform generation module (4), the waveform generation module (4) is connected with the equipment to be tested, used for applying surge pulse to the equipment to be tested, the waveform acquisition module (5) is connected with the equipment to be tested, the device is used for collecting surge pulse waveform data before entering the device to be tested and surge pulse waveform data after passing through the device to be tested;
the system is characterized by also comprising an input device (6), a display device (7), a storage device (8) and an alarm device (9) which are connected with the CPU master controller (1);
the high-voltage module (2) comprises a capacitor (21), a charging circuit (22) and a voltage feedback circuit (23), wherein the voltage feedback circuit (23) is used for collecting the voltage U of the capacitor (21)CAnd sends it to a CPU master controller (1), said CPU master controller (1) being adapted to determine the voltage U of the capacitor (21)CAnd a set voltage U of the CPU master controller (1)STurning on the charging circuit (22) or turning off the charging circuit (22);
the action main switch module (3) comprises a switch driving circuit and a main switch, wherein the switch driving circuit is used for switching on or off the main switch according to a control signal of the CPU main controller (1), and the main switch is configured to switch the high voltage of the high voltage module (2) into the waveform generating module (4);
the waveform acquisition module (5) comprises a voltage attenuation circuit and a current attenuation circuit;
the input device (6) is used for inputting a control command to the CPU main controller (1), and the control command comprises a set voltage US；
The display device (7) is used for displaying working parameters of the lightning surge testing device, and the working parameters comprise a set voltage USAnd surge pulse waveform data;
the storage device (8) is used for storing surge pulse waveform data;
the alarm device (9) is used for sending out an alarm signal according to a control signal of the CPU main controller (1).
2. The lightning surge testing device of claim 1, wherein the main switch is an IGBT.
3. The lightning surge testing device of claim 1, wherein the surge pulse waveform data comprises one or more of a voltage waveform peak, a current waveform peak, a voltage waveform rise time, a current waveform rise time, a voltage waveform half-peak time, and a current waveform half-peak time.
4. A lightning surge testing device according to claim 1, characterized in that the input device (6) is a keyboard.
5. A lightning surge testing device according to claim 1, characterized in that the display device (7) is a liquid crystal display.
6. The lightning surge testing device of claim 5, wherein the liquid crystal display screen is a touch screen.
7. A lightning surge testing device according to claim 1, characterized in that the storage device (8) is a read-write non-volatile memory.
8. A lightning surge testing device according to claim 7, characterized in that the storage device (8) is a U disk or a removable storage device.
9. A lightning surge testing device according to claim 1, wherein the storage device (8) is a cloud storage platform.
10. A lightning surge testing device according to claim 1, characterized in that the alarm device (9) is an audible and visual alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023205474.XU CN214225296U (en) | 2020-12-27 | 2020-12-27 | Lightning surge testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023205474.XU CN214225296U (en) | 2020-12-27 | 2020-12-27 | Lightning surge testing device |
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| Publication Number | Publication Date |
|---|---|
| CN214225296U true CN214225296U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023205474.XU Active CN214225296U (en) | 2020-12-27 | 2020-12-27 | Lightning surge testing device |
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|---|---|
| CN (1) | CN214225296U (en) |
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- 2020-12-27 CN CN202023205474.XU patent/CN214225296U/en active Active
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