CN210166453U - Intelligent direct current examination send appearance - Google Patents
Intelligent direct current examination send appearance Download PDFInfo
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- CN210166453U CN210166453U CN201920733535.8U CN201920733535U CN210166453U CN 210166453 U CN210166453 U CN 210166453U CN 201920733535 U CN201920733535 U CN 201920733535U CN 210166453 U CN210166453 U CN 210166453U
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Abstract
The utility model provides an appearance is sent in examination of intelligent direct current belongs to the direct current examination and sends the appearance field, including plastic case and battery, the plastic case is provided with electron boost module and detection control unit, is provided with operation display panel and output line on the plastic case, and the battery is through electron boost module and output line connection, and detection control unit is connected with electron boost module, and operation display panel sets up the front end at the plastic case, and is connected with detection control unit. The whole set of the instrument is portable, and the weight can be reduced by more than half; secondly, the device can automatically boost and give out a detection result, has perfect protection function and prompt function, and reduces the technical level requirement on actual operators; meanwhile, the trial delivery method can reduce heavy equipment such as a power frequency transformer, a generator and the like, improve the maintenance efficiency for field line maintenance and better recover the line electrification.
Description
Technical Field
The utility model relates to a direct current examination send appearance field, in particular, relate to an intelligent direct current examination send appearance.
Background
After a 10kV distribution line breaks down, a direct current trial transmission instrument is used for conducting sectional trial transmission and investigation on the line, the existing direct current trial transmission instrument uses a transformer to boost voltage and then obtains required test direct current voltage in a rectification or voltage-doubling rectification mode, and the overall weight of the instrument is often over 15kg and even over 20 kg; because the test site does not have an AC220V power supply, the existing direct current test transmission instrument is powered by a generator or is powered by an AC220V power supply which is changed from a high-power battery through an inverter circuit, so that part of weight is additionally increased, and the instrument is more inconvenient to carry and use in a field environment; and the voltage is boosted by adjusting a knob of the voltage regulator, and whether a fault exists or not is judged by observing an indicator meter, so that the method is complex.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligent direct current tries to send appearance solves current direct current tries to send the technical problem that the appearance is too heavy and the operation is complicated.
In order to solve the above problem, the utility model adopts the following technical scheme:
the utility model provides an intelligent direct current examination send appearance, includes plastics case and battery, be provided with the electron in the plastics case and step up module and detection control unit, be provided with operation display panel and output line on the plastics case, the battery steps up module and output line connection through the electron, detection control unit steps up the module with the electron and is connected, operation display panel sets up the front end at the plastics case, and is connected with detection control unit.
Furthermore, the electronic boost module comprises a high-frequency signal circuit, an IGBT driving circuit, an IGBT module, a high-frequency boost transformer and a rectifying circuit, the direct-current low voltage of the battery is changed into a low-voltage high-frequency signal through the high-frequency signal circuit, is changed into a high-frequency high voltage through the IGBT driving circuit, the IGBT module and the high-frequency boost transformer, and is then changed into a direct-current high-voltage signal required by the test of the direct-current trial transmission instrument through the rectifying circuit.
Furthermore, the maximum output voltage of the electronic boosting module is 8-10kV direct current, and the maximum current of the electronic boosting module is 120 mA.
Further, the detection control part comprises a high-voltage output circuit, a single chip microcomputer, a measuring circuit, a display and voice circuit, a key circuit, an automatic discharge circuit and a protection circuit, the high-voltage output circuit is arranged at the output end of the electronic boosting module and is connected with an output line, the measuring circuit and the automatic discharge circuit are connected with the high-voltage output circuit, and the measuring circuit, the display and voice circuit, the key circuit, the automatic discharge circuit and the protection circuit are connected with the single chip microcomputer.
Further, the operation display panel includes display screen, combined floodgate button, separating brake button, the button that steps up, output socket, battery input socket, switch and ground post, battery input socket is connected with the battery through the socket wire, output socket and high-voltage output circuit are connected, the output line is inserted on output socket.
Further, the battery is arranged in another box outside the plastic box, and the battery is connected with the battery input socket through a lead.
Further, the battery is a rechargeable battery or an AC220V direct current power supply.
The battery is used for providing electric energy, the output electric signal of the battery is converted into a low-voltage high-frequency signal through a high-frequency signal circuit, the low-voltage high-frequency signal is converted into a high-frequency high-voltage signal through an IGBT driving circuit, an IGBT module and a high-frequency step-up transformer, and the high-frequency high-voltage signal is converted into a direct-current high-voltage signal required by the test of the direct-current;
the current and voltage output by the rectifying circuit are detected by using a detection circuit, then compared with set data through a single chip microcomputer, and then the single chip microcomputer controls an IGBT driving circuit and an IGBT module to carry out voltage boosting and reducing processing;
the automatic discharging circuit is connected with an external distribution line through an output line, a detection high-voltage electric signal is provided, and meanwhile the IGBT driving circuit and the IGBT module are controlled in a closed loop mode according to a detection feedback signal of the detection circuit.
Furthermore, the maximum output voltage of the rectifying circuit is 8-10kV of direct current, and the maximum current of the rectifying circuit is 120 mA.
Furthermore, the direct current test sending instrument automatically boosts voltage without manual operation, automatically completes the whole operation process of boosting voltage, reducing voltage and discharging, and gives a test result, and the discharging circuit has the function of discharging the charges stored in the instrument and the circuit after the test is finished or the power is cut off accidentally.
The utility model adopts the above technical scheme, the utility model discloses there is as follows showing the effect:
the whole set of the instrument is portable, and the weight can be reduced by more than half; secondly, the device can automatically boost and give out a detection result, has perfect protection function and prompt function, and reduces the technical level requirement on actual operators; meanwhile, the trial delivery method can reduce heavy equipment such as a power frequency transformer, a generator and the like, improve the maintenance efficiency for field line maintenance and better recover the line electrification; and the whole boosting process is controlled after automatic detection and feedback of the single chip microcomputer, so that manual operation is not needed during discharging and boosting, and accidents can be greatly reduced.
Drawings
Fig. 1 is a system block diagram of an embodiment of the present invention.
Fig. 2 is an internal block diagram of the electronic boost module according to the embodiment of the present invention.
Fig. 3 is an appearance schematic diagram of the embodiment of the present invention without a battery.
The labels in the figure are: 10-a measurement circuit; 11-a battery; 12-an electronic boost module; 13-a high voltage output circuit; 14-a key circuit; 15-display and voice circuit; 16-a single chip microcomputer; 17-a protection circuit; 18-an automatic discharge circuit; 21-a high frequency signal circuit; 22-IGBT drive circuit; 23-an IGBT module; 24-a high frequency step-up transformer; 25-a rectifying circuit; 30-a plastic box; 31-operating a display panel; 32-a voice output hole; 33-output high voltage line; 311-display screen; 312-a closing button; 313-an opening button; 314-boost button; 315-output socket; 316-battery input socket; 317-power switch; 318-ground post.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
An intelligent direct current test delivery instrument is shown in figures 1-3, and the circuit structure comprises a battery input 11, an electronic boosting module 12, a high-voltage output 13, a single chip microcomputer 10, a measuring circuit 16, a display and voice circuit 15, a key circuit 14, an automatic discharging circuit 18 and a protection circuit 17.
The main circuit part is connected with an electronic boosting module 12 through a battery input 11, and is connected with a high voltage output 13 after the electronic boosting module 12 generates direct current high voltage. The circuit composed of the single chip microcomputer 10, the peripheral measuring circuit 16, the display and voice circuit 15, the key circuit 14, the automatic discharging circuit 18 and the protection circuit 17 is a detection control part. The detection control part is combined with the main circuit part to finally complete the automatic boosting of the instrument and automatically give a detection result.
Fig. 2 shows the internal block diagram of the electronic boost module according to the embodiment of the present invention, which includes a high-frequency signal circuit 21, an IGBT driving circuit 22, an IGBT module 23, a high-frequency boost transformer 24 and a rectifying circuit 25. The electronic boosting module plays a role in inverting and boosting in the whole instrument, namely, the direct-current low voltage of the battery is firstly changed into a low-voltage high-frequency signal through the high-frequency signal circuit 21, then is changed into a high-frequency high voltage through the IGBT driving circuit 22, the IGBT module 23 and the high-frequency boosting transformer 24, and then is changed into a direct-current high-voltage signal required by the test of the direct-current trial delivery instrument through the rectifying circuit 25, the maximum output voltage is direct current 8-10kV, and the maximum current can reach 120 mA.
All parts of the embodiment shown in fig. 1 are integrated into a box body, the appearance of the box body is as shown in the embodiment shown in fig. 3, and the box body is integrally installed in an engineering plastic box 30 and comprises an operation display panel 31, a voice output hole 32 and an output high-voltage wire 33. The operation display panel 31 includes a display screen 311, a closing button 312, an opening button 313, a boosting button 314, an output jack 315, a battery input jack 316, a power switch 317, and a ground post 318.
After the closing button 312 is pressed, the boosting button 314 is pressed to directly and automatically boost the voltage, so that the traditional mode of manually boosting the voltage through observing and displaying a gauge outfit is replaced; the main functions of the closing button 312 and the opening button 313 are that the closing button 312 and the opening button 313 are arranged to meet the operation specifications and use habits of field high-voltage instruments, high-voltage output can be stopped at any time after the opening button 313 is pressed, and the closing button 312 is arranged to enable high-voltage output to be available and remind field personnel of paying attention to safety.
The utility model discloses a main theory of operation does, with the DC voltage of battery, produces direct current high voltage signal according to the contravariant principle through the electronic voltage module, then through singlechip peripheral circuit feedback, utilizes digital signal to come automatic control electronic voltage module to step up. Because the boosting transformation of a power frequency transformer is not used, the weight of the instrument is reduced, the instrument is suitable for field carrying and use, and because the singlechip is used for controlling automatic boosting and reducing, automatic discharging and automatic measurement result giving, the operation is simple.
The intelligent direct current trial delivery instrument has an automatic boosting function, can automatically complete the whole operation process of boosting, reducing voltage and discharging without manual operation, and gives a test result. The electronic boosting module comprises a high-frequency signal circuit, an IGBT (insulated gate bipolar transistor), a driving circuit, a high-frequency boosting transformer and a rectifying circuit. The detection control part comprises a singlechip, a measuring circuit, a discharging circuit, a protection circuit and a display and voice output circuit. The operation display panel comprises a liquid crystal display, a closing button, an opening button, a boosting button, a grounding terminal, a battery input socket, a power switch and a high-voltage output socket. The battery and electronic boosting module, the detection control part, the operation display panel and the output line can also be arranged in a box body.
The battery box can be replaced by a power supply which is converted from AC220V to direct current. The color screen display circuit and the voice broadcasting circuit prompt and broadcast results of line test transmission, namely 'the line is normal', 'the line has hidden trouble' and 'the line has fault'. The protection circuit comprises a function of forbidding starting of high voltage when the grounding is not good and a function of protecting overcurrent and output short circuit. The discharge circuit has the function of discharging the charges stored in the instrument and the line after the test is finished or the power is cut off accidentally.
The direct current output by a large-capacity battery is used for supplying power, a main output circuit of the instrument boosts the voltage by using a high-power electronic device, and an auxiliary circuit automatically controls the boosting, detection, protection and feedback by using a single chip microcomputer and a peripheral circuit, so that the intellectualization of the whole test process is realized. Not only the weight of the whole instrument is reduced compared with that of the similar instrument, but also the operation and the use are simple.
The high-voltage output 13, the single chip microcomputer 10, the measuring circuit 16, the display and voice circuit 15, the key circuit 14, the automatic discharging circuit 18 and the protection circuit 17 are all circuits of the existing integrated type, and the specific schematic diagram of the high-voltage output circuit is searched in a network mode according to the needs of an implementer. The protection circuit 17 is an instrument grounding detection circuit, when electric leakage is detected, a signal is output to the single chip microcomputer, and the single chip microcomputer controls the prohibition of boosting operation, so that the effects of protecting equipment and personal safety are achieved.
The battery is used for providing electric energy, the output electric signal of the battery is converted into a low-voltage high-frequency signal through the high-frequency signal circuit, the low-voltage high-frequency signal is converted into a high-frequency high-voltage signal through the IGBT driving circuit, the IGBT module and the high-frequency step-up transformer, and then the high-frequency high-voltage signal is converted into a direct-current high-voltage signal required by the test of the direct-. The maximum output voltage of the rectifying circuit is 8-10kV direct current, and the maximum current of the rectifying circuit is 120 mA.
The current and voltage output by the rectifying circuit is detected by using the detection circuit, then the current and voltage are compared with set data through the single chip microcomputer, and then the single chip microcomputer controls the IGBT driving circuit and the IGBT module to carry out voltage boosting and reducing processing.
The automatic discharging circuit is connected with an external distribution line through an output line, a detection high-voltage electric signal is provided, and meanwhile the IGBT driving circuit and the IGBT module are controlled in a closed loop mode according to a detection feedback signal of the detection circuit.
The direct current test sending instrument automatically boosts voltage without manual operation, automatically completes the whole operation process of boosting voltage, reducing voltage and discharging, and gives a test result, and the discharging circuit has the function of discharging the charges stored in the instrument and a circuit after the test is finished or the power is cut off accidentally.
The direct current output by the large-capacity battery is used for supplying power, the main output circuit of the instrument uses a high-power electronic device for boosting, and a power frequency transformer is not used for boosting and converting, so that the weight of the instrument is reduced, and the instrument is suitable for being carried and used in the field; in addition, the intelligent direct current test-sending instrument uses the singlechip and the peripheral circuit to automatically control boosting, detection, protection and feedback, and realizes the intellectualization of the whole test process, thereby ensuring that the operation test process not only meets the field requirement, but also is simple to use.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides an intelligent direct current examination send appearance, includes plastics case and battery, its characterized in that, the plastics incasement is provided with the electron and steps up module and detection control unit, be provided with operation display panel and output line on the plastics case, the battery steps up module and output line connection through the electron, detection control unit steps up the module with the electron and is connected, operation display panel sets up the front end at the plastics case, and is connected with detection control unit.
2. The intelligent direct current trial-sending instrument according to claim 1, wherein the electronic boosting module comprises a high-frequency signal circuit, an IGBT driving circuit, an IGBT module, a high-frequency boosting transformer and a rectifying circuit, and the direct current low voltage of the battery is changed into a low-voltage high-frequency signal through the high-frequency signal circuit, is changed into a high-frequency high voltage through the IGBT driving circuit, the IGBT module and the high-frequency boosting transformer, and is then changed into a direct current high-voltage signal required by the test of the direct current trial-sending instrument through the rectifying circuit.
3. The intelligent DC trial-sending instrument according to claim 2, wherein the maximum output voltage of the electronic boosting module is 8-10kV DC, and the maximum current is 120 mA.
4. The intelligent dc trial delivery instrument according to claim 1, wherein the detection control unit comprises a high voltage output circuit, a single chip, a measurement circuit, a display and voice circuit, a key circuit, an automatic discharge circuit and a protection circuit, the high voltage output circuit is disposed at the output end of the electronic boost module and connected to the output line, the measurement circuit and the automatic discharge circuit are connected to the high voltage output circuit, and the measurement circuit, the display and voice circuit, the key circuit, the automatic discharge circuit and the protection circuit are connected to the single chip.
5. The intelligent dc test-sending instrument according to claim 4, wherein the operation display panel comprises a display screen, a switch-on button, a switch-off button, a boost button, an output socket, a battery input socket, a power switch, and a ground pin, the battery input socket is connected to a battery via a socket wire, the output socket is connected to a high voltage output circuit, and the output line is plugged into the output socket.
6. The intelligent direct current trial delivery instrument according to claim 5, wherein the battery is disposed in another box outside the plastic box, and the battery is connected to the battery input socket through a wire.
7. The intelligent dc trial-sending instrument of claim 1, wherein the battery is a rechargeable battery or an AC220V dc-to-dc power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920733535.8U CN210166453U (en) | 2019-05-22 | 2019-05-22 | Intelligent direct current examination send appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920733535.8U CN210166453U (en) | 2019-05-22 | 2019-05-22 | Intelligent direct current examination send appearance |
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| Publication Number | Publication Date |
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| CN210166453U true CN210166453U (en) | 2020-03-20 |
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| CN201920733535.8U Active CN210166453U (en) | 2019-05-22 | 2019-05-22 | Intelligent direct current examination send appearance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082624A (en) * | 2019-05-22 | 2019-08-02 | 广西电友科技发展有限公司 | Instrument and examination delivery method are sent in a kind of examination of intelligent DC |
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2019
- 2019-05-22 CN CN201920733535.8U patent/CN210166453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082624A (en) * | 2019-05-22 | 2019-08-02 | 广西电友科技发展有限公司 | Instrument and examination delivery method are sent in a kind of examination of intelligent DC |
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