CN203535135U - Precision-type direct-driven arc generation experimental device - Google Patents
Precision-type direct-driven arc generation experimental device Download PDFInfo
- Publication number
- CN203535135U CN203535135U CN201320635101.7U CN201320635101U CN203535135U CN 203535135 U CN203535135 U CN 203535135U CN 201320635101 U CN201320635101 U CN 201320635101U CN 203535135 U CN203535135 U CN 203535135U
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- sliding platform
- insulating support
- stepper motor
- electrode
- slide block
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- 238000010891 electric arc Methods 0.000 claims description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 229910052799 carbon Inorganic materials 0.000 claims description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 24
- 239000010949 copper Substances 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000032683 aging Effects 0.000 abstract description 3
- 238000013480 data collection Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001342 Bakelite® Polymers 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000003574 free electron Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
一种精密型直驱电弧发生实验装置，涉及一种实验装置，所述装置包括：滑动平台、步进电机、电极与绝缘支架、单片机；滑动平台通过丝杠连接导轨上的滑块，固定在绝缘支架上有两电极；步进电机与丝杠相连，丝杠连接有滑动平台，滑动平台上连接有滑块；电极固定在绝缘支架上，绝缘支架固定在滑动平台的滑块上；单片机与步进电机相连接。滑动平台上的滑块由两根在同一直线上的丝杠相接，其中一根丝杠与步进电机转子转轴直接相连，另一根丝杠与手动调节装置相连。本实用新型模拟由于电器设备的电力线路老化或接触不良所导致的故障电弧发生，提供一种精密的、可靠的、便于实验操作与实验数据采集的电弧故障发生装置。
A precision direct-drive arc generation experimental device relates to an experimental device, the device includes: a sliding platform, a stepping motor, electrodes and insulating supports, and a single-chip microcomputer; the sliding platform is connected to a slider on a guide rail through a screw, and is fixed on the There are two electrodes on the insulating support; the stepper motor is connected with the lead screw, the lead screw is connected with the sliding platform, and the sliding platform is connected with the slider; the electrodes are fixed on the insulating support, and the insulating support is fixed on the slider of the sliding platform; connected to the stepper motor. The slider on the sliding platform is connected by two lead screws on the same straight line, one of which is directly connected to the rotor shaft of the stepping motor, and the other lead screw is connected to the manual adjustment device. The utility model simulates the occurrence of arc faults caused by the aging or poor contact of power lines of electrical equipment, and provides a precise and reliable arc fault generating device that is convenient for experimental operation and experimental data collection.
Description
Technical field
The utility model relates to a kind of experimental provision, particularly relates to a kind of accurate electric arc generation experimental provision that directly drives.
Background technology
In real life, electric equipment is due to improper use or exceed the bad low-tension arc that causes of power supply situation that the reasons such as tenure of use usually cause equipment, as aging circuit, some contact etc.Yet the energy of electric arc is large, and temperature is high, very harmful, hold fire hazardous, harm user personal safety, even causes blast.But due to the discontinuity of electric arc and the features such as disguise of power circuit, arc fault is often difficult for being discovered by user, cannot be processed fast and accurately.So particularly important to the experimental study of electric arc.The simulated failure electric arc that the arc fault generating means of laboratory applications only can be rough at present.Have and produce that electric arc is unstable, equipment operating difficulty large, be difficult to guarantee experiment degree of accuracy, produce the shortcomings such as arc mode is single, the validity that makes to collect in electric arc experimental study data is poor, dispersion is high, feature is not obvious etc. in oscillogram.Strengthen electric arc experiment difficulty, be also unfavorable for the theoretical analysis to arc characteristic.Had a strong impact on the accuracy to the Efficiency of arc fault and result of study.
Summary of the invention
The purpose of this utility model is to provide a kind of accurate electric arc generation experimental provision that directly drives, the utility model simulation is because the fault electric arc that power circuit is aging or loose contact causes of electric equipment occurs, provide a kind of precision, reliably, be convenient to the arc fault generating means of experimental implementation and experimental data collection.
The purpose of this utility model is achieved through the following technical solutions:
The accurate electric arc generation experimental provision that directly drives, described device comprises: sliding platform, stepper motor, electrode and insulating support, single-chip microcomputer; Sliding platform is by the slide block on leading screw connection guide rail, is fixed on and on insulating support, has two electrodes; Stepper motor is connected with leading screw, and leading screw is connected with sliding platform, is connected with slide block on sliding platform; Electrode is fixed on insulating support, and insulating support is fixed on the slide block of sliding platform; Single-chip microcomputer is connected with stepper motor.
The described a kind of accurate electric arc generation experimental provision that directly drives, the slide block on described sliding platform is joined by two leading screws on same straight line, and wherein a rhizoid thick stick is directly connected with stepping motor rotor rotating shaft, and another rhizoid thick stick is connected with manual regulating device.
The described a kind of accurate electric arc generation experimental provision that directly drives, described two electrodes are respectively tack carbon electrode and tip copper rod electrode.
The described a kind of accurate electric arc generation experimental provision that directly drives, described stepper motor is directly connected with leading screw.
Advantage of the present utility model and effect are:
Stepper motor of the present utility model is directly connected with leading screw, has avoided the error that produces due to gear drive, has improved precision, and inherent error coefficient is stable; Be convenient to safeguard simultaneously, the in the situation that of can using in the long period, guarantee accuracy, the validity of experimental data.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the utility model is described in further detail.
The utility model primary structure comprises stepper motor, electrode and insulating support, sliding platform, single-chip microcomputer.
Stepper motor: stepper motor is to be driven by pulse signal, and the open loop opertaing device of the angular displacement that is motor by shift pulse signal.Be characterized in the in the situation that of non-overload, frequency and the umber of pulse of pulse signal only depended in the angular displacement of stepper motor.By this feature, can realize the double mode of this arc generator, both produce stable lasting fault electric arc and accurately controlled by stepper motor the point contact fault electric arc that negative pole to-and-fro movement is produced.Its correlation computations principle is as follows: under public (50Hz) condition frequently of the standard that is located at, stepper motor often revolves to turn around and needs n pulse signal to carry out excitation.Another special feature of the present utility model is that stepping motor rotating shaft is directly connected with leading screw, making the angular displacement of stepper motor and the angular displacement of leading screw ratio is 1, optimized due to application gear or the caused error of miscellaneous equipment indirect drive, also reduced manufacturing cost.Be convenient to calculate each pulse enable signal lead screw transmission distance simultaneously.Concrete grammar is as follows: the transmission of establishing stepper motor corner ω and leading screw is that k(k is determined as included angle of thread, thread density etc. by the physical characteristics of leading screw own apart from the scale-up factor between l.In actual use procedure, can be obtained by experiment measuring.), have: ω=k*l; Easily draw each pulse enable signal lead screw transmission distance: l=360/(nk).Bring concrete calculation of parameter into and show that the utility model lead screw transmission distance under each pulse signal effect is 0.5mm.
Electrode and insulating support: anodal to adopt diameter be 5.5mm, longly do electrode for the single-ended most advanced and sophisticated copper rod of 100mm; Negative pole adopts diameter to be that 6.4mm is long and does electrode for the tack carbon-point of 100mm.Insulating support adopts the cube bakelite material that the length of side is 10mm, and with gold utensil, insulating support is fixed on sliding platform, (during experiment, wire is separately fixed on the connection terminal of two electrodes) and has so just formed electrode and insulating support structure two electrodes being fixed on by gold utensil on corresponding insulating support.Its special character is as follows: be first selecting of electrode material.From the structure of material atom, electric arc is to be added to energy on electronics when enough large when extraneous, and electronics overcomes atomic nucleus gravitation and forms free electron, and free electron punctures the phenomenon that insulation meson discharges under the effect of electric field.Wherein extraneous being added on electronics makes the free energy of electron production be called free energy; The free of different material can grade difference.Carbon free can grade lower than copper, under same case, carbon-point is more prone to produce electric arc, if but two electrodes all adopt carbon-point that electric arc reaction is too violent, be difficult to control; Two electrodes all adopt the difficult generation of electric arc and unstable of copper rod.Next is the selection of electrode shape.When this arc fault generating means work, two electrode contacts disconnect process, and the contact area between contact reduces, and the resistance of contact point, current density increase, and cause the local rising of surface of contact temperature, loss carbon-point.And because the top of copper rod is taper, therefore there will be the small conical indentation similar to copper rod top at carbon-point contact point, this small depression has increased interelectrode relative area, has suitably improved the distribution situation of electric field, makes between two electrodes to produce the better lasting electric arc of stablizing.
Sliding platform: set up two closed slides on metal fixed mount, then overlap two slide blocks on guide rail, two slide blocks are connected with two leading screws that can control respectively on same straight line respectively.Wherein a rhizoid thick stick is connected with stepping motor rotating shaft, and another rhizoid thick stick is connected with manual regulating device.Wherein, closed slide rises and supports and fixation, has reduced the screw rod transmission friction that produces due to gravity effect, also makes the contact between two electrodes more stable, reliable simultaneously; Manual regulating device is for regulating anode position, makes the origination point of electric arc just in desirable observation position, is convenient to gather with other physical equipments the physical characteristics of electric arc.
Single-chip microcomputer: the design adopts PIC18F4520 type single-chip microcomputer, and its performance parameter is as follows: type of memory: flash; Program internal memory (kb): 32; Can certainly write; EEPM data-carrier store: 256; RAM:1536.Its advantage is that this single-chip microcomputer adopts modularized program, low price, and programming is based on C language.
Sliding platform is controlled the slide block on guide rail by leading screw, thereby control, is fixed on two electrode separations on insulating support; Stepper motor is connected with leading screw, precisely controls leading screw rotation, and leading screw rotates to be the slip of sliding platform top shoe power is provided; Electrode is fixed on insulating support, and insulating support is fixed on the slide block of sliding platform by gold utensil; Single-chip microcomputer is used to stepper motor that pulse signal is provided.Slide block on sliding platform is controlled by two leading screws on same straight line, and wherein a rhizoid thick stick is directly connected with stepping motor rotor rotating shaft, and another rhizoid thick stick is connected with manual regulating device.Two electrodes adopt respectively tack carbon-point and tip copper rod, and two electrode positions are all removable.The insulating material of insulating support adopts bakelite, and is fixed by gold utensil.Slide block is supported by two closed slides, and is connected with two leading screws respectively.By the reasonable programming of single-chip microcomputer, stepper motor are connected with the direct of leading screw, can make this device produce the electric arc of two kinds of forms, be respectively sustained fault electric arc and some contact fault electric arc.
Embodiment:
In figure: fromer rail 1, rear rail 2, carbon electrode insulating support 3, copper rod electrode insulation support 4, tack carbon electrode 5, tip copper rod electrode 6, carbon electrode slide block 7, copper rod electrode slide block 8, carbon electrode slide block leading screw 9, copper rod electrode slide block leading screw 10, base plate 11, manual regulating device 12, stepper motor 13.
The utility model sliding platform comprises base plate 11, two parallel fromer rails 1, rear rail 2 are set on base plate 11, two carbon electrode slide blocks 7, copper rod electrode slide block 8 are set on guide rail, and be connected with carbon electrode slide block leading screw 9, copper rod electrode slide block leading screw 10 respectively, carbon electrode slide block leading screw 9 is directly connected with stepper motor 13; Copper rod electrode slide block leading screw 10 is directly connected with manual regulating device.Electrode and insulating support structure comprise carbon electrode insulating support 3, copper rod electrode insulation support 4 and tack carbon electrode 5, tip copper rod electrode 6, carbon electrode slide block 7, copper rod electrode slide block 8; Wherein tack carbon electrode 5 is fixed on carbon electrode insulating support 3, and carbon electrode insulating support 3 is fixed on carbon electrode slide block 7; Tip copper rod electrode 6 is fixed on copper rod electrode insulation support 4, and copper rod electrode insulation support 4 is fixed on copper rod electrode slide block 8.Insulating support structure is connected with sliding platform by slide block.Stepper motor 13, by Single-chip Controlling, provides driving force for the carbon electrode slide block 7 on sliding platform slides.
Principle of work of the present utility model: before switching on power, the end of incoming cables of power lead and leading-out terminal are separately fixed on tip copper rod electrode 6 and tack carbon electrode 5, by stepper motor 13, control the position of tack carbon electrode 5, by manual regulating device 12, regulate tip copper rod electrode 6 positions, make it to be convenient to observation, the sampling of experiment.Switch on power by Single-chip Controlling stepper motor 13, make stepper motor 13 produce angular displacement accurately, by stepping motor rotor rotating shaft, be directly connected with carbon electrode slide block leading screw 9, carbon electrode slide block leading screw 9 is connected with carbon electrode slide block 7 again, by carbon electrode slide block leading screw 9, the angular displacement of stepper motor 13 is converted into accurately to the straight-line displacement of carbon electrode slide block 7, thus the accurate gap of controlling two electrodes.By the programming to single-chip microcomputer, the angular displacement of control step motor 13 maintains a certain distance electrode gap can produce stable lasting electric arc; Equally, by can make stepper motor 13 to-and-fro movements produce some contact arc to the programming of single-chip microcomputer, so just realized of the present utility model double mode.
Claims (4)
1. the accurate electric arc generation experimental provision that directly drives, is characterized in that, described device comprises: sliding platform, stepper motor, electrode and insulating support, single-chip microcomputer; Sliding platform is by the slide block on leading screw connection guide rail, is fixed on and on insulating support, has two electrodes; Stepper motor is connected with leading screw, and leading screw is connected with sliding platform, is connected with slide block on sliding platform; Electrode is fixed on insulating support, and insulating support is fixed on the slide block of sliding platform; Single-chip microcomputer is connected with stepper motor.
2. a kind of accurate electric arc generation experimental provision that directly drives according to claim 1, it is characterized in that, slide block on described sliding platform is joined by two leading screws on same straight line, wherein a rhizoid thick stick is directly connected with stepping motor rotor rotating shaft, and another rhizoid thick stick is connected with manual regulating device.
3. a kind of accurate electric arc generation experimental provision that directly drives according to claim 1, is characterized in that, described two electrodes are respectively tack carbon electrode and tip copper rod electrode.
4. a kind of accurate electric arc generation experimental provision that directly drives according to claim 1, is characterized in that, described stepper motor is directly connected with leading screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320635101.7U CN203535135U (en) | 2013-10-15 | 2013-10-15 | Precision-type direct-driven arc generation experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320635101.7U CN203535135U (en) | 2013-10-15 | 2013-10-15 | Precision-type direct-driven arc generation experimental device |
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| Publication Number | Publication Date |
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| CN203535135U true CN203535135U (en) | 2014-04-09 |
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| CN201320635101.7U Expired - Fee Related CN203535135U (en) | 2013-10-15 | 2013-10-15 | Precision-type direct-driven arc generation experimental device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510815A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Fault arc test apparatus |
| CN106482928A (en) * | 2016-10-13 | 2017-03-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Electric spark excites cavity to occur and test device |
| CN111366757A (en) * | 2018-12-25 | 2020-07-03 | 沈阳新松机器人自动化股份有限公司 | Fault arc generator for vibration environment |
| CN119916165A (en) * | 2025-04-07 | 2025-05-02 | 中清能绿洲(北京)能源科技有限公司 | An arc generator for DC arc detection of photovoltaic inverter |
-
2013
- 2013-10-15 CN CN201320635101.7U patent/CN203535135U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510815A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Fault arc test apparatus |
| CN106482928A (en) * | 2016-10-13 | 2017-03-08 | 水利部交通运输部国家能源局南京水利科学研究院 | Electric spark excites cavity to occur and test device |
| CN111366757A (en) * | 2018-12-25 | 2020-07-03 | 沈阳新松机器人自动化股份有限公司 | Fault arc generator for vibration environment |
| CN119916165A (en) * | 2025-04-07 | 2025-05-02 | 中清能绿洲(北京)能源科技有限公司 | An arc generator for DC arc detection of photovoltaic inverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20141015 |
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| EXPY | Termination of patent right or utility model |