CN2403030Y - High voltage charge display device - Google Patents
High voltage charge display device Download PDFInfo
- Publication number
- CN2403030Y CN2403030Y CN 99216831 CN99216831U CN2403030Y CN 2403030 Y CN2403030 Y CN 2403030Y CN 99216831 CN99216831 CN 99216831 CN 99216831 U CN99216831 U CN 99216831U CN 2403030 Y CN2403030 Y CN 2403030Y
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- CN
- China
- Prior art keywords
- negative pole
- rectifier bridge
- positive pole
- liquid crystal
- voltage charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to a high voltage charge display device, comprising a casing 1 on which a liquid crystal display window 2 and a luminous tube 6 are arranged. The back surface of the casing is provided with a back board 5 on which a terminal block 4 is arranged. The casing 1 and the back board are fixed on a disk surface of a switch cabinet with fixing screws 3. When the display is used for the display, the liquid crystal display window displays words in 'with electricity' and/or electric spark symbols in 'a star shape', and simultaneously, the luminous tube emits flash light. The utility model has the advantages of strong prompt performance, permanent type high voltage charge display function, long service life, and high safety. Two kinds of displays are cooperated, which forms a dual display. The utility model can ensure a clear indication both in the dark and in the environment with bright light.
Description
The utility model relates to a kind of being applicable to and exchanges 50 hertz, and whether the electric system of rated voltage 3-35 kilovolt has the safety feature of working voltage in order to show power equipment.
A large amount of charged display device of using have following two kinds in the electric system at present:
1, standing formula is installed on the switch cubicle card and the matching used neon lamp formula of sensor display device such as CG series.Because the neon lamp life-span is short, anti-superpotential ability, line service is untimely, causes the blind rate of this device neon lamp very high, and confidence level is very poor, is difficult to as the electrical verification foundation.
2, the induction high voltage display device of standing formula, because it is to be directly installed on the electrified body, with liquid crystal display printed words and " " electric spark symbol " are arranged ", whether have working voltage with the prompting electrical equipment, but this display device only is applicable to the switch cubicle of band net door, and is then just inapplicable for fully closed switch cubicle.
The purpose of this utility model is exactly can be visual and clear on the closed switch cabinet card in order to guarantee to be installed in, and whether has the electrification display of the standing formula of working voltage on the instant playback high voltage electric equipment that the life-span is long, reliability is high.
For achieving the above object, the utility model is taked following design proposal: this high-voltage charge display device comprises housing, liquid crystal window and luminotron are housed on the housing, back side of shell is provided with backboard, have connecting terminal block on the backboard, between housing and the backboard set bolt is housed, the charged display circuit that has the flash of light of liquid crystal display and luminotron to show in the housing.
When described display shows its liquid crystal window present " having " printed words and/or
The electric spark symbol, luminotron flashes simultaneously, and expression switch cubicle inner high voltage electrical equipment has working voltage.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 a is a front view of the present utility model
Fig. 1 b is the vertical view of Fig. 1 a
Fig. 2 is circuit theory diagrams
As shown in Fig. 1 a, Fig. 1 b, the utility model 1 is a housing, 3 liquid crystal windows 2 are housed on the housing, 3 luminotrons 6, back side of shell is provided with backboard 5, has connecting terminal block 4 on the backboard, between housing and the backboard 5 set bolt 3 is housed, display can be fixed on the high-tension switch cabinet card by set bolt, when cabinet inner high voltage equipment is charged liquid crystal window can show " having " printed words and/or
The electric spark symbol, luminotron flashes, and has working voltage with the prompting high voltage electric equipment, when high-tension apparatus does not have electricity, does not then have demonstration.
Among Fig. 2; three-phase sensor extension line in the switch cubicle is received respectively on A, B on the connection terminal 4 on the backboard 5, the C binding post; connection terminal O links to each other with the grounding body of switch cubicle; every all have display circuit mutually, and the structure of every circuitry phase is identical, promptly is connected to A or the B or the C end of connection terminal 4 by the signal of sensor output in the switch cubicle; between terminal A or B or C end and earth terminal O, meet a voltage dependent resistor (VDR) VR (playing the overvoltage protection effect); afterwards, this signal is divided into two-way, the one tunnel: one terminates at R
2, C
1, LCD three's parallel connection an end; The other end (earth terminal) is connected on by D
1-D
4The D of the rectifier bridge bridge of forming
1Positive pole again by resistance in series R
1Receive R
2, C
1, LCD three's parallel connection the other end.Stabilivolt DW
1Negative pole meet D in this rectifier bridge
1Negative pole, stabilivolt DW
1Positive pole be connected on rectifier bridge (D
1-D
4) middle D
2Positive pole on.Another road: an end (earth terminal) is received by D
5-D
8D in the rectifier bridge of forming
6Negative pole; The other end is by series capacitance C
2Be connected on the D of this rectifier bridge
5Negative pole.At another diagonal line of this rectifier bridge (that is: D
7Negative pole and D
5Positive pole) go up serial connection controllable silicon SCR, luminotron LED and current-limiting resistance R
3, energy storage capacitor C
3Positive pole meets D
7Negative pole, C
3Negative plate meet D
5Positive pole.Stabilivolt DW
2Negative pole meets the anode of controllable silicon SCR, DW
2Positive pole connect controllable silicon SCR control very the convenience of safeguarding in the future, be provided with plug-in unit CA in the circuit, so that can change at any time during fault.Simultaneously, the effect of the voltage dependent resistor (VDR) VR of setting is when dialling wiring board, and the voltage of signals that sensor is come is controlled at below the 100V.
The principle of work of this display is: the AC signal from the CG series sensor is divided into two-way: lead up to decompression capacitor C
2O is added to by D with earth terminal
5-D
8The ac input end of the rectifier bridge of forming is given energy storage capacitor C after rectification
3Charging, C
3Both end voltage reaches DW
2Voltage breakdown the time, DW
2Puncture controllable silicon SCR conducting, C
3The electric energy of storing is rapidly by luminotron LED and current-limiting resistance R
3Discharge flashes luminotron, C
3Both end voltage sharply drops to the O volt, and controllable silicon SCR is crossed zero to cut-off, and luminotron also stops luminous, and the feeble signal of sensor output this moment continues to C by rectifier bridge
3The charging accumulation of energy.
Thereby form the circulation trigger process, it is luminous to point out high voltage electric equipment to have the effect that working voltage plays charged demonstration that luminotron LED is continuously glimmered.
Another road, the AC signal process is by rectifier bridge D
1-D
4And stabilivolt DW
1Usefulness the DC terminal stabilivolt of forming constitutes the ac circuit of control liquid crystal LCD two ends trigger voltages (voltage opens the door), make LCDs demonstrates " having " when reaching trigger voltage printed words with
The electric spark symbol.
Its R
1And C
1Be the bleeder circuit of LCDs, make Control of Voltage on the LCDs at the running status of the best image of 3-5 volt, R
2Be the discharge resistance of LCD, when high voltage electric equipment did not have electricity, LCD in time stopped to show that the response time that makes liquid crystal display was less than 1 second.
The characteristics of this display:
1, this display prompts is strong, because it is to be directly installed on the card of switch cubicle, so at high voltage electric equipment during with working voltage, the liquid crystal display three-phase demonstrates respectively " electricity is arranged " printed words and the redness of black
The electric spark symbol, three luminous tubes flash simultaneously, and it is very directly perceived, eye-catching, can The prompting staff prevents the personal injury that mistakenly entering charged chamber or switch cubicle cause.
2, this display is not affected by ambient light, and high light and dark light condition all can be high-visible.
3, this display life is long, and is safe and reliable, and the LCDs life-span can reach 7000 hours, inner unit Part adopts the long-life element, and electric capacity adopts courage electric capacity, and main is the electricity that bears when making each element work Pressure is strict controlled in the optimum state of permission, and is when power system " ground connection " overvoltage, too unexceptional.
4, this display need not often be safeguarded, no additional supply, continuous uninterrupted operation for a long time.
5, this display is reliable, and except component life was long, there be possibility of simultaneous faults hardly in literal and symbol and glisten dual be shown as six groups, the independent combiner of six covers, " mistake is indicated " therefore can not occur.
6, this display combinations is flexible, can be combined into simple literal demonstration or symbol respectively and show or the demonstration of glistening, and is suitable for the needs of various occasions.
7, this display particularly can be monitored the electric equipment operation situation in real time owing to have standing formula electrification in high voltage Presentation Function, therefore can also reflect in time that circuit or user have or not the situation of returning power supply, thereby prevent maloperation, guarantees personal safety.
Claims (3)
1, a kind of high-voltage charge display device, it is characterized in that: it comprises housing (1), liquid crystal window (2) and luminotron (6) are housed on the housing, back side of shell is provided with backboard (5), have connecting terminal block (4) on the backboard, between housing (1) and the backboard (5) set bolt (3) is housed, the charged display circuit that has the flash of light of liquid crystal display and luminotron to show in the housing.
2, high-voltage charge display device according to claim 1 is characterized in that: described liquid crystal window is 3, present respectively " having " printed words and/or
Electric spark symbol, luminotron are 3.
3, high-voltage charge display device according to claim 1; it is characterized in that: described charged display circuit is formed the charged display circuit of three-phase by three identical cover circuit of circuit theory; the circuit of every phase is: the A or B or the C end that are connected to connecting terminal block by the signal of sensor output in the switch cubicle; between terminal A or B or C end and earth terminal O, meet voltage dependent resistor (VDR) VR; play the overvoltage protection effect; afterwards, it is divided into two-way: the one tunnel: one terminates at R
2, C
1, LCD three's parallel connection an end, other end earth terminal is connected on D
1-D
4The D of the rectifier bridge of forming
1Positive pole, again by resistance in series R
1Receive R
2, C
1, LCD three's parallel connection is the other end, stabilivolt DW
1Negative pole meet rectifier bridge D
1-D
4Middle D
1Negative pole, stabilivolt DW
1Positive pole is connected on rectifier bridge D
1-D
4Middle D
2Positive pole on; Another road: an end is that earth terminal is received by D
5-D
8The D of the rectifier bridge of forming
6Negative pole, the other end is received the negative pole of the D5 of the rectifier bridge of being made up of D5-D8 by series capacitance, at another diagonal line D of this rectifier bridge
7Negative pole and D
5Positive pole on be connected in series controllable silicon SCR, luminotron LED and resistance R
3, capacitor C
3Positive pole meets D
7Negative pole, C
3Negative pole meet D
5Positive pole; Stabilivolt DW
2Negative pole meets the anode of controllable silicon SCR, DW
2Positive pole connect the control utmost point of controllable silicon SCR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99216831 CN2403030Y (en) | 1999-07-13 | 1999-07-13 | High voltage charge display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99216831 CN2403030Y (en) | 1999-07-13 | 1999-07-13 | High voltage charge display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403030Y true CN2403030Y (en) | 2000-10-25 |
Family
ID=34008395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99216831 Expired - Fee Related CN2403030Y (en) | 1999-07-13 | 1999-07-13 | High voltage charge display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403030Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437524A (en) * | 2011-12-09 | 2012-05-02 | 苏州市世纪晶源电力科技有限公司 | Distribution box |
| CN104635022A (en) * | 2015-02-06 | 2015-05-20 | 四川蓝讯宝迩电子科技有限公司 | High-voltage live indicating device with trigger protection function |
| CN107293087A (en) * | 2016-03-30 | 2017-10-24 | 国网辽宁省电力有限公司本溪供电公司 | A kind of powered earthing alarm unit by mistake of 10kV high-tension switch cabinets |
-
1999
- 1999-07-13 CN CN 99216831 patent/CN2403030Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437524A (en) * | 2011-12-09 | 2012-05-02 | 苏州市世纪晶源电力科技有限公司 | Distribution box |
| CN104635022A (en) * | 2015-02-06 | 2015-05-20 | 四川蓝讯宝迩电子科技有限公司 | High-voltage live indicating device with trigger protection function |
| CN107293087A (en) * | 2016-03-30 | 2017-10-24 | 国网辽宁省电力有限公司本溪供电公司 | A kind of powered earthing alarm unit by mistake of 10kV high-tension switch cabinets |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |