CN203479886U - High-voltage electrified warning device - Google Patents
High-voltage electrified warning device Download PDFInfo
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- CN203479886U CN203479886U CN201320594154.9U CN201320594154U CN203479886U CN 203479886 U CN203479886 U CN 203479886U CN 201320594154 U CN201320594154 U CN 201320594154U CN 203479886 U CN203479886 U CN 203479886U
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Abstract
The utility model discloses a high-voltage electrified warning device, which comprises a first electrode plate, a second electrode plate, a rectifier circuit, a current relay capacitor and a flash circuit, wherein the first electrode plate and the second electrode plate are parallelly and separately arranged to form an energy-obtaining capacitor; the first electrode plate and the second electrode plate are vertical with an electric field line formed by a monitored high-voltage lead in the case of electrification; two electrodes of the energy-obtaining capacitor are respectively connected with two input ends of the rectifier circuit; two output ends of the rectifier circuit are respectively connected with two ends of the current relay capacitor; and two ends of the current relay capacitor are also connected with the flash circuit. The energy-obtaining capacitor formed by the first electrode plate and the second electrode plate is placed in a capacitor formed by the high-voltage lead and a ground electrode; when the high-voltage lead is electrified, the generated electric field enables the two electrode plates to be provided with different voltages, current outputted by the electrode plates is stored in the current relay capacitor after rectification of the rectifier circuit; and when the electric energy stored by the current relay capacitor is large enough, the subsequent flash circuit flashes, and alarm is achieved. The scheme is applicable to common high-voltage circuit.
Description
Technical field
The utility model relates to a kind of electric power pick-up unit, especially relates to a kind of electrification in high voltage attention device for judging that whether high-tension line is charged.
Background technology
Electric power scene patrol and examine with maintenance process in, slip-stick artist often need to check circuit charged state one time, many ways are exactly to carry the bar-shaped electroscope that is similar to electroscope, and electroscope is touched to circuit one time, according to neon lamp, have and do not have luminously to judge that whether circuit is charged.For high-tension line, close contact has larger potential safety hazard.
It is the patent documentation of CN202057716U that State Intellectual Property Office of the People's Republic of China discloses Granted publication number on November 30th, 2011, title is a kind of high-voltage warning indicator, it comprises high-pressure detection unit, driver module, light-emitting diode display unit and battery BT1, battery BT1 is connected with high-pressure detection unit, driver module, light-emitting diode display unit simultaneously, high-pressure detection unit access driver module, driver module access light-emitting diode display unit.This scheme is powered by battery, need to regularly replace battery, and the problem that exists running down of battery correctly to warn.
Summary of the invention
The utility model be mainly solve the existing security of prior art not high enough, need to regularly replace battery, safeguard comparatively loaded down with trivial details technical matters, providing a kind of does not need by battery or All other routes power supply, safety coefficient is high, maintenance is simple, cost is low electrification in high voltage attention device.
The utility model is mainly solved by following technical proposals for above-mentioned technical matters: a kind of electrification in high voltage attention device, comprise the first pole plate, the second pole plate, rectification circuit, stream electric capacity and flasher circuit continue, described the first pole plate forms with parallel separated setting of the second pole plate that get can electric capacity, and the electric field line that the first pole plate and the second pole plate form when charged with monitored high-voltage conducting wires is vertical, described the two poles of the earth of getting energy electric capacity are connected with two input ends of rectification circuit respectively, two output terminals of described rectification circuit connect respectively the two ends of the stream electric capacity that continues, described two ends of continuing stream electric capacity are also connected with flasher circuit.
Getting that the first pole plate and the second pole plate form can be placed in the electric capacity of high-voltage conducting wires and earth polar formation by electric capacity, when high-voltage conducting wires is charged, the electric field generating makes two pole plates have different voltage, the electric current of pole plate output is stored in later and is continued in stream electric capacity by rectification circuit rectification, when the electric energy of the stream capacitance stores that continues is enough greatly time, follow-up flasher circuit is luminous, warns.This scheme does not need special-purpose supplying cell, without external power cable, as long as high-voltage conducting wires is charged, gets final product work yet, safeguards simple, with low cost.Staff, seeing from wire that more at a distance whether flasher circuit is luminous, does not need to approach wire and measures, safe.
As preferably, described flasher circuit comprises light emitting diode, hysteresis comparator, reference source and switching tube; Described reference source one end connects the stream electric capacity negative pole that continues, and the other end connects the inverting input of hysteresis comparator; The in-phase input end of hysteresis comparator connects the positive pole of the stream electric capacity that continues, the control end of the output terminal connecting valve pipe of hysteresis comparator; The negative pole of the input end connecting luminous diode of switching tube, output terminal connects the negative pole of the stream electric capacity that continues; The positive pole of light emitting diode connects the positive pole of the stream electric capacity that continues.
In more existing schemes, employing be that the mode of warning lamp Chang Liang is warned.And people easily make vigilant decline in hazardous environment for a long time, may produce inertia and cause ignoring the warning lamp of Chang Liang.Adopt the mode of glistening to warn and can effectively reduce inertia, enhancing your vigilance property.And the warning lamp of Chang Liang is due to needs continued power, and the inevitable warning lamp lower than flash-mode of brightness, is not easy to arouse vigilance.In this programme, after the voltage of the stream electric capacity that continues rises to a certain degree along with charging, higher than the reference voltage of hysteresis comparator, now comparer output high level, switching tube conducting, lumination of light emitting diode.Electric discharge due to light emitting diode, continue stream electric capacity two ends voltage constantly decline, until lower than reference voltage, the output of hysteresis comparator transfers low level to, and switching tube is closed, and light emitting diode extinguishes, the stream electric capacity that continues enters the charging stage again, charging, electric discharge so repeatedly, light emitting diode constantly glimmers, and warns.
As preferably, described switching tube is NMOS pipe, and the grid of described NMOS pipe connects the output terminal of hysteresis comparator, and source electrode connects the negative pole of the stream electric capacity that continues, the negative pole of drain electrode connecting luminous diode.The quiescent current of NMOS pipe is low, and while closing, power consumption is little.
As preferably, described light emitting diode has three, and all light emitting diode series connection are connected in circuit later.A plurality of light emitting diodes can be arranged on different positions, thereby carry out better warning function.
As preferably, described rectification circuit is bridge rectifier circuit.
Bridge rectifier circuit can be converted to direct current by the alternating current of power taking electric capacity output.
The beneficial effect that the utility model brings is, do not need extra powered battery, easy to maintenance, can warn at a distance, safe, has higher luminosity, and alarming effect is obvious, installs simple.
Accompanying drawing explanation
Fig. 1 is a kind of circuit theory diagrams of the present utility model;
In figure: 1, the first pole plate, the 2, second pole plate, 3, high-voltage conducting wires.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of electrification in high voltage attention device of the present embodiment, as shown in Figure 1, comprises the first pole plate 1, the second pole plate 2, rectification circuit U, continues and flow capacitor C and flasher circuit.The first pole plate 1 and the second pole plate 2 be arranged in parallel and form that get can electric capacity, and the electric field line that the first pole plate and the second pole plate form when charged with monitored high-voltage conducting wires 3 is vertical, is placed in the middle of the electric capacity of high-voltage conducting wires 3 and earth polar GND formation.The two poles of the earth (the first pole plate 1 and the second pole plate 2) of getting energy electric capacity are connected with two input ends of rectification circuit U respectively, and two output terminals of rectification circuit U connect respectively the two ends of the stream capacitor C that continues.Rectification circuit U is bridge rectifier circuit.
Flasher circuit comprises hysteresis comparator A, reference source, switching tube and three LED, and reference source adopts voltage stabilizing diode D, and switching tube is NMOS pipe T, and three LED series connection form LED string.The anodal stream electric capacity negative pole that continues that connects of reference source, reference source negative pole connects the inverting input of hysteresis comparator A; The in-phase input end of hysteresis comparator A connects the positive pole of the stream capacitor C that continues, and the output terminal of hysteresis comparator A connects the grid of NMOS pipe T; The source electrode of NMOS pipe T connects the negative pole of the stream capacitor C that continues, and drain electrode connects the negative pole of LED string.The positive pole of LED string connects the positive pole of the stream capacitor C that continues.
This programme feature is as follows:
1, distributed capacitance power taking: the charged flasher internal structure of equipotential two pole plates of capacity plate antenna, using ground level as the 3rd utmost point, these three pole plates are equivalent to two capacitances in series, from one of them electric capacity, obtain the energy source that energy has just been realized the charged flasher of equipotential.
2, charged flash of light: adopting flash model prompting charged is a kind of safer method.The charged indication of tradition adopts normal bright mode, when charged signal is faint brightness very dark, be not easy to cause people's vigilance.
3, comparator control circuit: adopt a slice hysteresis comparator in circuit, comparer negative terminal connects reference voltage, positive termination supply voltage, output termination metal-oxide-semiconductor gate pole.
4, flasher circuit: alternating voltage is through after diode rectification, and electric weight is stored on electric capacity, after the voltage of electric capacity rises to a certain degree, higher than the reference voltage of hysteresis comparator, now comparer output high level, metal-oxide-semiconductor conducting, LED is luminous; Due to LED electric discharge, electric capacity both end voltage constantly declines, and voltage is lower than reference voltage, comparer output low level now, and LED extinguishes, and then recharge, electric discharge, and LED is constantly glimmered.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as stream electric capacity, reference source that continue herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (5)
1. an electrification in high voltage attention device, it is characterized in that, comprise the first pole plate, the second pole plate, rectification circuit, continue and flow electric capacity and flasher circuit, described the first pole plate forms with parallel separated setting of the second pole plate that get can electric capacity, and the electric field line that the first pole plate and the second pole plate form when charged with monitored high-voltage conducting wires is vertical, described the two poles of the earth of getting energy electric capacity are connected with two input ends of rectification circuit respectively, two output terminals of described rectification circuit connect respectively continue stream electric capacity two ends, described in continue stream electric capacity two ends be also connected with flasher circuit.
2. electrification in high voltage attention device according to claim 1, is characterized in that, described flasher circuit comprises light emitting diode, hysteresis comparator, reference source and switching tube; Described reference source one end connects the stream electric capacity negative pole that continues, and the other end connects the inverting input of hysteresis comparator; The in-phase input end of hysteresis comparator connects the positive pole of the stream electric capacity that continues, the control end of the output terminal connecting valve pipe of hysteresis comparator; The negative pole of the input end connecting luminous diode of switching tube, output terminal connects the negative pole of the stream electric capacity that continues; The positive pole of light emitting diode connects the positive pole of the stream electric capacity that continues.
3. electrification in high voltage attention device according to claim 2, is characterized in that, described switching tube is NMOS pipe, and the grid of described NMOS pipe connects the output terminal of hysteresis comparator, and source electrode connects the negative pole of the stream electric capacity that continues, the negative pole of drain electrode connecting luminous diode.
4. according to the electrification in high voltage attention device described in claim 2 or 3, it is characterized in that, described light emitting diode has three, and all light emitting diode series connection are connected in circuit later.
5. electrification in high voltage attention device according to claim 1 and 2, is characterized in that, described rectification circuit is bridge rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594154.9U CN203479886U (en) | 2013-09-26 | 2013-09-26 | High-voltage electrified warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594154.9U CN203479886U (en) | 2013-09-26 | 2013-09-26 | High-voltage electrified warning device |
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| Publication Number | Publication Date |
|---|---|
| CN203479886U true CN203479886U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320594154.9U Expired - Lifetime CN203479886U (en) | 2013-09-26 | 2013-09-26 | High-voltage electrified warning device |
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| Country | Link |
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| CN (1) | CN203479886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249031A (en) * | 2016-08-30 | 2016-12-21 | 重庆理工大学 | Power frequency high voltage measuring device with electricity |
-
2013
- 2013-09-26 CN CN201320594154.9U patent/CN203479886U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249031A (en) * | 2016-08-30 | 2016-12-21 | 重庆理工大学 | Power frequency high voltage measuring device with electricity |
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| GR01 | Patent grant | ||
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Granted publication date: 20140312 |