CN201562005U - Novel passive high voltage charge indicator - Google Patents
Novel passive high voltage charge indicator Download PDFInfo
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- CN201562005U CN201562005U CN2009200747601U CN200920074760U CN201562005U CN 201562005 U CN201562005 U CN 201562005U CN 2009200747601 U CN2009200747601 U CN 2009200747601U CN 200920074760 U CN200920074760 U CN 200920074760U CN 201562005 U CN201562005 U CN 201562005U
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- liquid crystal
- passive high
- transparent glass
- semilune
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Abstract
The utility model provides a novel passive high voltage charge indicator which is characterized in that: the passive high voltage charge indicator comprises a liquid crystal box, a transition electrode (2) and a signal amplifying/attenuating integrated circuit (18); the liquid crystal box is composed of the following components: an upper orientation layer (6), an upper electrode (5), upper transmitting glass (4) and an upper polarizer (3) which are sequentially arranged above a liquid crystal layer (1); and a lower orientation layer (8), a lower electrode (12), a lower transmitting glass (9), a lower polarizer (10) and a reflector (11) which are arranged below the liquid crystal layer (1); the transition electrode (2) connects with the lower electrode (12) and the upper electrode (5); and the signal amplifying/attenuating integrated circuit (18) is conducted with the upper electrode and the lower electrode through a conducting strip (13) specialized for liquid crystal.
Description
Technical field
The utility model relates to a kind of passive high voltage display device, and especially a kind of novel passive high-voltage potential indicator based on principle of electric field and lcd technology belongs to electrician's indicating device class.
Background technology
Traditional induction-type high-voltage potential indicator utilizes air between sensor unit and the electrified body as insulating medium, display unit compares with the working value of setting the induced signal amplification, the compensation back that collect, and whether charged at last the result is shown this conductor of indication.Fig. 7 is the structural drawing of traditional induction-type high-voltage potential indicator.Traditional induction-type high-voltage potential indicator exists following problem and shortcoming:
1, owing to there is bigger phase mutual interference between the three-phase electric field of high-tension apparatus,, causes the mistake of judgement easily if directly use the signal power of responding to as Rule of judgment.
2, owing to will the induced signal that collect be amplified and compensate, definite value judgment means itself needs the design peripheral circuit simultaneously, and provide working power by the outside, and make the use occasion of this potential indicator limited, peripheral circuit also is vulnerable to the interference of conductor peripheral electromagnetic field.
3, sensor unit is installed in the open air and is vulnerable to sleet and effect of dust and lost efficacy and cause the entire belt electrical indicator to lose efficacy.
4, the general luminous indication of adopting of neon lamp of display unit if long-play can cause the luminosity of neon lamp to descend, is installed in outdoorly, and under the stronger situation of light, indicating effect is not obvious.
5, the whole indicator volume is bigger, and it is bigger that required space is installed, installation local limited.
According to the investigation of inventor to correlation technique, in the position of electric power 10kV line-to-ground disconnecting link, also do not have at present aly can be used for outdoor potential indicator and can install, this be because:
1, outdoor ground connection disconnecting link is because outdoor, and present potential indicator is owing to have circuit and need working power, and the physical condition at this place does not have the condition that is hinged with working power.
2, general potential indicator all is to utilize power taking pressure signal on capacitance partial pressure principle direct-on-line road or the bus, needs the huge capacitor of installation volume at this position mounting strap electrical indicator, and this place does not often have the installation site.
Investigation shows: in power industry, owing to multiple reason takes place through the accident of the charged mistake of regular meeting's appearance splice grafting ground disconnecting link in the position shown in Fig. 7 product frame line, therefore, it is very necessary proposing a kind of safe and reliable electrification in high voltage indicating device.
The utility model content
The purpose of the present utility model: aim to provide a kind of novel passive high-voltage potential indicator that can overcome existing induction-type high-voltage potential indicator deficiency.
The foregoing invention purpose can produce this phenomenon of twisted effect by using liquid crystal under effect of electric field, utilize this characteristic of liquid crystal to indicate the existence of electric field, thereby reach the charged state of indirect indication conductor.
This novel passive high-voltage potential indicator is characterized in that: it comprises liquid crystal cell, a transition electrode, a signal amplification integrated circuit; Described liquid crystal cell is by the last oriented layer, top electrode, top transparent glass, the last polaroid that are arranged in regular turn above the liquid crystal layer, and the following oriented layer, bottom electrode, bottom transparent glass, following polaroid and the reflector plate that are arranged on equally in regular turn below the liquid crystal layer constitute; Described transition electrode connects bottom electrode and top electrode; Described signal amplification integrated circuit is by special-purpose bus of liquid crystal and upper and lower electrode conduction.
Described top electrode is made of the indium oxide layer tin of whole coating of top transparent glass bottom exterior layer face; Described bottom electrode is made of the indium oxide layer tin that is coated in whole distribution of aspect on the transparent glass of bottom; Simultaneously, described top electrode, bottom electrode all are designed to " lightning " shape caution symbol, and the corresponding main body section of upper and lower electrode is, and the orthogonal projection shape is corresponding to be provided with.
The afterbody of described top electrode is the semilune forked, and semilune inside is an electrode connecting terminal, and this tie point is by transition electrode and bottom electrode conducting; The semilune outside is the connecting terminal of another top electrode, is provided with the bus that cross-over connection is stuck in the semilune branch between inside and outside two tie points.
Described signal amplification circuit is that resistor and the electric capacity of 1.5G Ω～3G is the epi-planar integrated circuit that the parallel connection of 4pF capacitor constitutes by the resistance of Surface Mount encapsulation, and package dimension is 2512.
Novel passive high-voltage potential indicator according to above technical scheme proposition, compare with the triphase induction type high voltage display device that generally uses now, need not add any external device working power, simple in structure, volume is little, displaying symbol is clear eye-catching, indicating effect is obvious.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 shows " lightning " figure and electrode structure form synoptic diagram in the top electrode;
Fig. 3 shows " lightning " graphic structure form synoptic diagram in the bottom electrode;
Electronic structure principle schematic when Fig. 4 uses for the utility model;
The liquid crystal arrangement synoptic diagram of Fig. 5 during for no electric field action;
Fig. 6 is the liquid crystal arrangement synoptic diagram when electric field action is arranged;
Fig. 7 is the structural representation of existing triphase induction type high voltage display device;
Scheme of installation when Fig. 8 uses for the utility model.
Among the figure: polaroid 11-reflector plate 12-bottom electrode 13-bus 14-high-voltage charged body 15-air insulation 16-sensor unit 17-display unit 18-signal amplification circuit under the transparent glass 10-of oriented layer 9-bottom under the last oriented layer 7-sealing-in frame 8-of the last polaroid 4-top transparent glass 5-top electrode 6-of 1-liquid crystal layer 2-transition electrode 3-
Embodiment
This novel passive high-voltage potential indicator as Figure 1-3, it is a kind of improvement creation to the triphase induction type high voltage display device that generally uses now.
This novel passive high-voltage potential indicator is characterized in that: its bag expands liquid crystal cell, a transition electrode 2 and a signal amplification integrated circuit 18; Described liquid crystal cell is by being arranged on last oriented layer 6, top electrode 5, top transparent glass 4 above the liquid crystal layer 1 in regular turn, going up polaroid 3, and is arranged on following oriented layer 8 below the liquid crystal layer 1, bottom electrode 12, bottom transparent glass 9, polaroid 10 and reflector plate 11 formations down equally in regular turn.
Described transition electrode 2 connects bottom electrode 12 and top electrode 5; Described signal amplification integrated circuit 18 is by special-purpose bus 13 of liquid crystal and upper and lower electrode conduction, and forming one thus is a pattern electrodes circuit of feature with the pictorial symbolization.The main effect of described transition electrode is the top transparent glass 4 that applies indium oxide layer tin that bottom electrode 12 is transferred to top electrode 5 places, so that the installation of signal amplification integrated circuit 18.
Described top electrode 5 is made of the indium oxide layer tin of whole coating of top transparent glass 4 bottom exterior layer faces; Described bottom electrode 12 is made of the indium oxide layer tin that is coated in aspect on the bottom transparent glass 9, is local distribution; Simultaneously, all be designed to " lightning " shape caution graphical symbol on the described top electrode 5 upper and lower electrodes 12, and the corresponding main body section of upper and lower electrode is, and the orthogonal projection shape is corresponding to be provided with.
The afterbody of described top electrode 5 is the semilune forked, and semilune inside is an electrode, and this electrode is by transition electrode 2 and bottom electrode 12 conductings; The semilune outside is another electrode, is provided with the bus 13 that cross-over connection is stuck in the semilune branch between the inside and outside electrode.
" lightning " symbol on above-mentioned top electrode electricity and the bottom electrode forms the shape of Fig. 2, the shape of " lightning " symbol by photoresist and mask technology etching formation Fig. 3 on the bottom electrode by photoresist and mask etching technics,
Described signal amplification circuit 18 is the epi-planar integrated circuit that the parallel connection of 4pF capacitor constitutes by resistor and the electric capacity of resistance 1.5G～3G, and package dimension is 2512.
Because the present invention is used on the high-pressure conductor, requirement can not change the safe distance between conductor after this product has been installed, so the extraction electrode of liquid crystal layer can not be with traditional metal extension line mode, must be with the method fabrication and installation electrode (electrode shape that the top of Fig. 2 promptly makes) by etching on the top electrode of formation liquid crystal layer.And the bottom electrode of being located on the bottom transparent glass 9 (shape as shown in Figure 3) adopts the mode of transition electrode to carry out the transition to upper glass plate, and concrete transition method is seen shown in Figure 1.
After this novel potential indicator of making is installed on the electrified body, owing to produce electric field around the electrified body, liquid crystal in the liquid crystal layer produces distortion under effect of electric field, light enters liquid crystal through polaroid, on " the lightning symbol " of direct projection to the bottom electrode of bottom, we just can see the shape of " lightning " symbol, know that conductor is charged.When conductor was not charged, liquid crystal distributed in a jumble, and light can not enter liquid crystal, thereby can not see " lightning " symbol of bottom, indicated conductor not charged indirectly.
In technique scheme, the inventor is actually and uses liquid crystal can produce the liquid crystal of twisted effect under effect of electric field " electric field type effect ".Liquid crystal as a kind of special electric field sensing material and indicated number interface, when conductor is charged, to around conductor, produce electric field, with the close energized conductor of liquid crystal cell, aligned twisted will take place in the liquid crystal molecule in the liquid crystal cell under electric field action, thereby we utilize this characteristic of liquid crystal to indicate the existence of electric field to indicate the charged state of conductor indirectly just.
Technique effect of the present utility model:
If 1, conductor is charged, be installed in electrification in high voltage indicating device on this conductor and under the situation of any light condition good (no matter being sunlight or light), all can clearly indicate the charged situation of electrified body, because designated symbol is designed to large-scale lightning symbol, thereby this indication is clear, eye-catching.
2, owing to adopted the drive source of electric field as liquid crystal display, product of the present invention need not any other external power supply and design of drive circuit, thereby is a real green product, energy savings.Because dispense with outer connecting power, life of product is longer, stable performance.
3, because the LCD of product possesses the dual role of electric-field sensor and charged indication, the compact conformation of product, volume is small and exquisite, is fit to the more occasion of installing.
4, owing to need not the huge electric capacity of installation volume as dividing potential drop equipment usefulness, product of the present invention almost can be installed to the user wishes to install Anywhere, even if the abominable place of some running environment, such as outdoor and places some high pollutions.
5, mounting means is very simple, only needs when electrified body has a power failure, and with band product of the present invention is lashed on the electric conductor to get final product.
6, real non-maintaining product after the normal operation of product, does not need any artificial maintenance.
7, whole device adopts complete Seal Design, dustproof and waterproof; All parts all are that the highly resistant material of fire-retardant organic synthesis constitutes, and can not change the original safe distance of electrical equipment, are particularly suitable for the outdoor mounted and the use of high-tension apparatus.
If we have installed product of the present invention in position shown in Figure 8, operating personnel find that the potential indicator indication circuit in line side of ground cutter is charged, just splice grafting ground disconnecting link that can be not rashly but notify the related personnel to search to know reason to avoid the generation of accident.
Claims (4)
1. novel passive high-voltage potential indicator, it is characterized in that: it comprises liquid crystal cell, a transition electrode (2) and a signal amplification integrated circuit (18); Described liquid crystal cell is by being arranged on last oriented layer (6), top electrode (5), top transparent glass (4) above the liquid crystal layer (1) in regular turn, going up polaroid (3), and is arranged on following oriented layer (8) below the liquid crystal layer (1), bottom electrode (12), bottom transparent glass (9), polaroid (10) and reflector plate (11) formation down equally in regular turn; Described transition electrode (2) connects bottom electrode (12) and top electrode (5); Described signal amplification integrated circuit (18) is by special-purpose bus of liquid crystal (13) and upper and lower electrode conduction.
2. a kind of novel passive high-voltage potential indicator as claimed in claim 1 is characterized in that: described top electrode (5) is made of the indium oxide layer tin of whole coating of top transparent glass (4) bottom exterior layer face; Described bottom electrode (12) is by being coated in the indium oxide layer tin formation that bottom transparent glass (9) is gone up aspect, is local distribution; Simultaneously, described top electrode (5), bottom electrode (12) all are designed to " lightning " shape caution symbol, and the corresponding main body section of upper and lower electrode is, and the orthogonal projection shape is corresponding to be provided with.
3. a kind of novel passive high-voltage potential indicator as claimed in claim 1 or 2 is characterized in that: the afterbody of described top electrode (5) is the semilune forked, and semilune inside is an electrode, and this electrode is by transition electrode (2) and bottom electrode (12) conducting; The semilune outside is another electrode, is provided with the bus (13) that cross-over connection is stuck in the semilune branch between the inside and outside electrode.
4. a kind of novel passive high-voltage potential indicator as claimed in claim 1, it is characterized in that: described signal amplification circuit (18), resistor and electric capacity by resistance 1.5G ~ 3G are the 4pF capacitor epi-planar integrated circuit that constitutes in parallel, and package dimension is 2512.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200747601U CN201562005U (en) | 2009-12-08 | 2009-12-08 | Novel passive high voltage charge indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200747601U CN201562005U (en) | 2009-12-08 | 2009-12-08 | Novel passive high voltage charge indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562005U true CN201562005U (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200747601U Expired - Fee Related CN201562005U (en) | 2009-12-08 | 2009-12-08 | Novel passive high voltage charge indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344893A (en) * | 2018-03-08 | 2018-07-31 | 苏州康力丰纳米科技有限公司 | A kind of electric-field sensor being used for high voltage safety instruction based on liquid crystal polarization |
| CN110300898A (en) * | 2017-03-23 | 2019-10-01 | Dic株式会社 | Potential indicator |
-
2009
- 2009-12-08 CN CN2009200747601U patent/CN201562005U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110300898A (en) * | 2017-03-23 | 2019-10-01 | Dic株式会社 | Potential indicator |
| CN108344893A (en) * | 2018-03-08 | 2018-07-31 | 苏州康力丰纳米科技有限公司 | A kind of electric-field sensor being used for high voltage safety instruction based on liquid crystal polarization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20101208 |