CN215494042U - Surge generator and limited short circuit test device - Google Patents
Surge generator and limited short circuit test device Download PDFInfo
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- CN215494042U CN215494042U CN202121239318.7U CN202121239318U CN215494042U CN 215494042 U CN215494042 U CN 215494042U CN 202121239318 U CN202121239318 U CN 202121239318U CN 215494042 U CN215494042 U CN 215494042U
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Abstract
The surge generator and limited short circuit test device comprises a charging module, a capacitor device connected with the charging module, a discharging module connected with the capacitor device and a switch module connected with the capacitor device, wherein the capacitor device comprises a first input/output end, a second input/output end and a plurality of capacitor loops, each capacitor loop comprises a capacitor module and a first switch unit connected with the capacitor module in series, and each capacitor module comprises a plurality of capacitor units connected with each other in series in sequence and a second switch unit connected with the capacitor units in parallel; by the mode, the total capacitance of the capacitor device can be increased or decreased according to the detection requirement of the device to be detected, and the output surge voltage or surge current can be flexibly adjusted; the electric quantity that the module of discharging can remain in each electric capacity unit after the experiment releases, has improved the security and has reduced the impaired possibility of electric capacity unit.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of metering detection, in particular to a surge generator and a limited short circuit test device.
[ background of the utility model ]
The surge generator is mainly applied to surge experiment application scenes of surge protection devices such as a piezoresistor, a discharge tube and a lightning arrester resistor disc, and is also applied to application scenes such as overcurrent detection of a circuit board.
The surge generator in the prior art forms surge by using a capacitor device, cannot adjust surge voltage or surge current according to a device to be detected, and cannot release electric quantity remained in a capacitor after a test, so that the capacitor device is damaged.
[ Utility model ] content
The utility model aims to provide a surge generator and a limited short circuit test device, which are used for solving the technical problems that surge voltage or surge current cannot be adjusted according to a device to be detected and the device is damaged in the prior art.
The technical scheme of the utility model is as follows: there is provided a surge generator comprising a charging module, a capacitor means connected to said charging module, a discharging module connected to said capacitor means and a switch module connected to said capacitor means, wherein, the capacitance device comprises a first input/output end and a second input/output end which are oppositely arranged and a plurality of capacitance loops which are arranged between the first input/output end and the second input/output end in parallel, each capacitance loop comprises a capacitance module and a first switch unit which is connected with the capacitance module in series, each capacitance module comprises a plurality of capacitance units which are sequentially connected between the first input/output end and the second input/output end in series and a second switch unit which is connected with the capacitance units in parallel, the capacitor units and the second switch units are arranged in a one-to-one correspondence mode, and the capacitor device is used for providing surge voltage for the to-be-detected device connected between the first input and output end and the second input and output end.
Optionally, the charging module includes an AC power interface connected to an external AC power source, and an AC-DC converter connected to the AC power interface, where two output terminals of the AC-DC converter are respectively connected to the first input/output terminal and the second input/output terminal.
Optionally, the discharge module includes a third switching unit and a discharge load, and the third switching unit and the discharge load are connected in series between the first input and output terminal and the second input and output terminal.
Optionally, the discharge load includes a voltage dividing resistor R1.
Optionally, the switch module is a relay or an IGBT module.
Optionally, the surge generator further comprises an oscillography module for displaying the voltage and the current of the capacitor, and the oscillography module is respectively connected to the first input and output end and the second input and output end.
Optionally, the surge generator further includes a control module having a central processing unit, and the control module is connected to each of the first switch units and each of the second switch units, and sends a closing instruction or an opening instruction to the first switch unit or the second switch unit.
Optionally, the control module is connected to the charging module and the discharging module, respectively, and the control module is further configured to switch the capacitor device between the charging module and the discharging module.
The other technical scheme of the utility model is as follows: the limited short circuit test device comprises a shell and the surge generator arranged on the shell.
Optionally, the limited short circuit test device further comprises a first terminal and a second terminal which are arranged on the housing and electrically connected with the first input and output end and the second input and output end respectively.
The surge generator and the limited short circuit test device comprise a charging module, a capacitor device connected with the charging module, a discharging module connected with the capacitor device and a switch module connected with the capacitor device, wherein the capacitor device comprises a first input/output end and a second input/output end which are oppositely arranged and a plurality of capacitor loops which are arranged between the first input/output end and the second input/output end in parallel, each capacitor loop comprises a capacitor module and a first switch unit which is connected with the capacitor module in series, each capacitor module comprises a plurality of capacitor units which are sequentially connected between the first input/output end and the second input/output end in series and a second switch unit which is connected with the capacitor units in parallel, the capacitor units and the second switch units are arranged in one-to-one correspondence, and the capacitor device is used for a device to be detected which is connected between the first input/output end and the second input/output end The element provides a surge voltage; by the mode, the total capacitance of the capacitor device can be increased or decreased according to the detection requirement of the device to be detected, and the output surge voltage or surge current can be flexibly adjusted; the electric quantity that the module of discharging can remain in each electric capacity unit after the experiment releases, has improved the security and has reduced the impaired possibility of electric capacity unit.
[ description of the drawings ]
Fig. 1 is a block diagram of a surge generator according to an embodiment of the present invention;
fig. 2 is a block diagram of a preferred mode of a surge generator according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a limited short circuit test apparatus according to an embodiment of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 and 2, the surge generator 100 includes a charging module 10, a capacitor device 20, a discharging module 30, and a switch module 40, where the capacitor device 20 is connected to the charging module 10, the discharging module 30 is connected to the capacitor device 20, and the switch module 40 is connected to the capacitor device 20, where the capacitor device 20 is configured to provide a surge voltage to a device to be tested connected between the first input/output end 21 and the second input/output end 22, the capacitor device 20 includes a first input/output end 21 and a second input/output end 22 that are oppositely arranged and a plurality of capacitor loops 20a that are arranged in parallel between the first input/output end 21 and the second input/output end 22, the charging module 10 and the discharging module 30 are respectively connected between the first input/output end 21 and the second input/output end 22, the switch module 40 is connected to the first input/output terminal 21.
Each capacitive circuit 20a comprises a capacitive module 23 and a first switching unit 24 connected in series with the capacitive module 23. When the first switch unit 24 in the capacitor circuit 20a is closed, the capacitor module 23 in the capacitor circuit 20a is connected; when the first switch unit 24 in the capacitor circuit 20a is turned off, the capacitor module 23 in the capacitor circuit 20a is not connected.
Each of the capacitor modules 23 includes a plurality of capacitor units 231 sequentially connected in series between the first input/output end 21 and the second input/output end 22, and a second switch unit 232 connected in parallel with the capacitor units 231, the capacitor units 231 and the second switch units 232 are arranged in a one-to-one correspondence, and each capacitor unit 231 may include a plurality of capacitors connected in series or a plurality of capacitors connected in parallel. On the premise that the capacitor circuit 20a is connected, when the second switch unit 232 connected in parallel with the capacitor unit 231 in the capacitor circuit 20a is disconnected, the capacitor unit 231 is connected; when the second switch unit 232 connected in parallel with the capacitor unit 231 in the capacitor circuit 20a is closed, the capacitor unit 231 is not accessed.
In this embodiment, by adjusting the on/off of the first switch unit 24 and the on/off of the second switch unit 232, the number of the connected capacitor units 231 and the connection manner between the connected capacitor units 231 can be adjusted, the total capacitance of the capacitor device 20 can be increased or decreased according to the detection requirement of the device to be detected, and the surge voltage or the surge current output by the capacitor device 20 can be flexibly adjusted.
In the present embodiment, the charging module 10 is used to charge the capacitor device 20, and the charging module 10 may be a dc charging module, for example, a battery pack; the charging module 10 may also be an AC charging module, please refer to fig. 2, where the charging module 10 includes an AC power interface 11, an AC-DC converter 12 connected to the AC power interface 11, and a fourth switching unit 13 disposed between the AC power interface 11 and the AC-DC converter 12, two output ends 12a and 12b of the AC-DC converter 12 are respectively connected to the first input/output end 21 and the second input/output end 22, the AC power interface 11 is connected to an external AC power source, for example, the AC power interface 11 may be connected to a commercial power, and when the fourth switching unit 13 is closed, the charging module 10 charges the capacitor device 20; when the fourth switching unit 13 is turned off, the charging module 10 stops charging the capacitance device 20.
In this embodiment, after the charging module 10 finishes charging the capacitor device 20, the capacitor device 20 outputs a surge voltage to the device to be detected to detect the device to be detected; after the detection is completed, the discharging module 30 releases the electric quantity remained in each capacitor unit 231 after the experiment, so that the safety is improved and the possibility of damaging the capacitor units is reduced. Referring to fig. 2, the discharging module 30 includes a third switching unit 31 and a discharging load 32, the third switching unit 31 and the discharging load 32 are connected in series between the first input/output terminal 21 and the second input/output terminal 22, and further, the discharging load 32 includes a voltage dividing resistor R1. When the third switching unit 31 is turned off, the discharging module 30 does not operate; when the third switching unit 31 is closed, the discharging module 30 operates, and the capacitance device 20 discharges the discharging module 30.
In this embodiment, the switch module 40 is connected between the device to be tested and the capacitor device 20, the switch module 40 is a relay or an IGBT module, when the switch module 40 is the IGBT module, the switching delay can be reduced, and the IGBT module can be further controlled by an external digital circuit.
In an alternative embodiment, referring to fig. 2, the surge generator 100 further includes an oscillography module 50 and a control module 60, wherein the oscillography module 50 is configured to display a real-time voltage and a real-time current of the capacitor device 20 during a charging process or a discharging process, the oscillography module 50 is respectively connected to the first input/output end 21 and the second input/output end 22, and the oscillography module 50 may be an oscilloscope; the control module 60 has a central processing unit, and the control module 60 is connected to each of the first switch units 24 and each of the second switch units 232, and sends a closing instruction or an opening instruction to the first switch unit 24 or the second switch unit 232, that is, the control module 60 can control the on/off of the first switch unit 24 and the second switch unit 232, so as to control the total capacity of the capacitor device 20. Further, the control module 60 is connected to the charging module 10 and the discharging module 30, respectively, and the control module 60 is further configured to switch the capacitor device 20 between the charging module 10 and the discharging module 30. Specifically, the control module 60 is connected to the fourth switching unit 13 and the third switching unit 31, and sends a closing instruction or an opening instruction to the fourth switching unit 13 or the third switching unit 31, so as to control charging of the capacitor device 20 and discharging of the capacitor device 20.
Referring to fig. 3, the limited short circuit testing apparatus 200 further includes a housing 201 and a surge generator 100 disposed in the housing 201, wherein an oscillography module 50 of the surge generator 100 is disposed on an outer wall of the housing 201, and other components of the surge generator 100, such as the charging module 10, the capacitor device 20, the discharging module 30, the switch module 40, and the control module 60, are disposed inside the housing 201. Further, the limited short circuit test apparatus 200 further includes a first terminal 202 and a second terminal 203 disposed on the outer wall of the housing 201, please refer to fig. 1, in which the first terminal 202 is connected to the first input/output end 21, the second terminal 203 is connected to the second input/output end 22, and the devices to be tested are respectively connected to the first terminal 202 and the second terminal 203, so as to connect the devices to be tested to the first input/output end 21 and the second input/output end 22.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the utility model.
Claims (10)
1. A surge generator is characterized by comprising a charging module, a capacitor device connected with the charging module, a discharging module connected with the capacitor device and a switch module connected with the capacitor device, wherein the capacitor device comprises a first input/output end and a second input/output end which are oppositely arranged and a plurality of capacitor loops which are arranged between the first input/output end and the second input/output end in parallel, each capacitor loop comprises a capacitor module and a first switch unit which is connected with the capacitor module in series, each capacitor module comprises a plurality of capacitor units which are sequentially connected between the first input/output end and the second input/output end in series and a second switch unit which is connected with the capacitor units in parallel, the capacitor units and the second switch units are arranged in one-to-one correspondence, and the capacitor device is used for providing waves for a device to be detected which is connected between the first input/output end and the second input/output end An inrush voltage.
2. The surge generator of claim 1, wherein the charging module comprises an AC power interface for connection to an external AC power source and an AC-DC converter connected to the AC power interface, two output terminals of the AC-DC converter being connected to the first input/output terminal and the second input/output terminal, respectively.
3. The surge generator according to claim 1, wherein the discharging module comprises a third switching unit and a discharging load, the third switching unit and the discharging load being connected in series between the first input and output terminals and the second input and output terminal.
4. The surge generator of claim 3, wherein the discharge load comprises a voltage divider resistor R1.
5. The surge generator of claim 1, wherein the switching module is a relay or an IGBT module.
6. The surge generator of claim 1, further comprising an oscillometric module for displaying the voltage and current of the capacitive device, the oscillometric module being connected to the first and second input/output terminals, respectively.
7. The surge generator of claim 1, further comprising a control module having a central processor, the control module being connected to each of the first switching units and each of the second switching units, respectively, to send a close command or an open command to the first switching unit or the second switching unit.
8. The surge generator of claim 7, wherein the control module is connected to the charging module and the discharging module, respectively, the control module further configured to switch the capacitive device between the charging module and the discharging module.
9. A limited short circuit test device comprising a housing and a surge generator according to any one of claims 1 to 8 provided in the housing.
10. The limited short circuit test device as claimed in claim 9, further comprising a first terminal and a second terminal disposed on the housing and electrically connected to the first input/output terminal and the second input/output terminal, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121239318.7U CN215494042U (en) | 2021-06-03 | 2021-06-03 | Surge generator and limited short circuit test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121239318.7U CN215494042U (en) | 2021-06-03 | 2021-06-03 | Surge generator and limited short circuit test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215494042U true CN215494042U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121239318.7U Active CN215494042U (en) | 2021-06-03 | 2021-06-03 | Surge generator and limited short circuit test device |
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| Country | Link |
|---|---|
| CN (1) | CN215494042U (en) |
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2021
- 2021-06-03 CN CN202121239318.7U patent/CN215494042U/en active Active
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