CN2288450Y - High-voltage liquid crystal display device - Google Patents
High-voltage liquid crystal display device Download PDFInfo
- Publication number
- CN2288450Y CN2288450Y CN 97205712 CN97205712U CN2288450Y CN 2288450 Y CN2288450 Y CN 2288450Y CN 97205712 CN97205712 CN 97205712 CN 97205712 U CN97205712 U CN 97205712U CN 2288450 Y CN2288450 Y CN 2288450Y
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- Prior art keywords
- display
- utility
- model
- liquid crystal
- high pressure
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- 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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Abstract
The utility model relates to a high pressure liquid crystal display, comprising a high pressure line which is provided with an electricity collecting plate and a display. The electricity collecting plate and the display is electrically connected by a conducting wire. The utility model has the advantages of reasonable structure, timely and visual displaying, no power supply, automatic display of electrified situation of a display line, etc. The utility model solves the problem that electrification detecting of high pressure lines is completed by people for a long time, and the utility model prevents the electric shock and the accidents of electric devices caused by workmen entering electrified areas by mistake. The utility model especially adopts a liquid crystal display with low energy consumption for automatically displaying electrified situation without a power supply, and the utility model can timely remind people for preventing people from entering electrified areas by mistake. The utility model is a matching device for electric power systems for safe operation.
Description
The utility model relates to the high-tension electricity indicating device, more particularly is that whether charged people be used to indicate high-tension circuit high pressure liquid crystal display.
The indication whether traditional electric system high-tension circuit is charged, whether majority is on-the-spot label be set after detecting or detecting and come the reminds people high-tension line charged by manually entering, the former can in time understand the charged situation of circuit, but to the dangerous property of tester's securing band, the latter is often because human error can be brought life danger to the operator, cause people's mistakenly entering into charged zone easily and electric shock accidents takes place, do not satisfy the requirement of present electrical power system safety operation.
The purpose of this utility model is to provide a kind of can eliminate above-mentioned shortcoming, have reasonable in design, safe and reliable, liquid crystal display, directly perceived in time, save power supply etc., automatically whether the liquid crystal display circuit has electricity, prevents the high pressure liquid crystal display that high pressure gets an electric shock effectively.
High pressure liquid crystal display of the present utility model is that collector plate and display are housed on high-tension line or equipment, with lead collector plate is electrically connected with display, wherein display is to be made of housing, base, circuit board, display screen, circuit elements device etc., it is on the base in housing circuit board, display screen to be housed, rectifier, frequency divider, display screen are housed, successively the components and parts of Lian Jieing on the circuit board.Its course of work is that the signal that collector plate is responded to is shown by display screen that through rectifier and frequency divider its operating circuit does not need external power supply, and required display is preferably selected low consumed LCD for use, for economical and antirust collector plate are preferably selected aluminium sheet for use.
Further specify the structure and the course of work of high pressure liquid crystal display of the present utility model in conjunction with the accompanying drawings.As shown in Figure 2, collector plate and display 1 are housed on high-tension line or high-tension apparatus, collector plate 3 and display 1 usefulness lead are electrically connected, its collector plate 3 outer display 1 bases 4 that are equipped with, circuit board 6 is housed on base 4, the housing 5 of display 1 studs with display screen 2, and be buckled on the base 4, rectification is arranged on the circuit board 6 successively, frequency division, display circuit is electrically connected with display screen 2, when in the high-tension line electricity being arranged, collector plate 3 is idiostatic with hi-line 7, produces induced voltage, produces an induced voltage over the ground, with this voltage signal through rectifier 9 rectifications, input frequency divider 10, with two electrodes of input LCD behind this signal frequency split, display 2 is convenient to obtain exchanging intermittently driving display 2 work of square wave in the arteries and veins, thereby realize that flicker shows, telltale.As shown in Figure 3, the drive principle of this device, as two collector plates that are placed between high-tension apparatus and the earth, near the electrostatic capacitance between on high-tension side collector plate and the high-tension apparatus is C1, electrostatic capacitance is C2 between the collector plate of close the earth side and the earth, can think the induced voltage V that C1 and C2 series inductance generate, through rectifier 9 rectifying and voltage-stabilizings, institute's stored charge is as the power supply of frequency divider 10 on the capacitor.Frequency divider is imported LCD after with this signal frequency split, drives demonstration, and resulting alternating-current pulse square wave intermittently drives, and can reduce power consumption, improves display sensitivity.As shown in Figure 4, the operating circuit of this device carries out frequency division with the voltage signal input rectifier of collector plate in signal input IC1, the IC2 of rectification, signal input LCD behind the frequency division, and driving display work, and whether circuit has.Description of drawings: Fig. 1: high pressure liquid crystal display master looks synoptic diagram Fig. 2: high pressure liquid crystal display side is cutd open synoptic diagram
Fig. 3: high pressure liquid crystal display fundamental diagram Fig. 4: high pressure liquid crystal display circuit diagram 1-display 2-display screen 3-collector plate 4-base 5-housing 6-circuit board 7-high-tension line or equipment 8-clip 9-rectifier 10-frequency divider
High pressure liquid crystal display of the present utility model, whether solved for a long time high-tension circuit or equipment charged by problem such as manually finishing, electric shock of having avoided operator mistakenly entering into charged zone and having taken place and the power equipment accident that meets accident, especially selected the low LCD of energy consumption for use, made the equipotential effect of this device by collector plate; Having solved the driving power of circuit, realized showing automatically intuitively in time whether high-tension apparatus is in electriferous state, reminded the staff to take care, prevented to cause electric shock accidents because of the carelessness of chance, is the desirable corollary apparatus of electrical power system safety operation.
Claims (3)
1, a kind of high pressure liquid crystal display is characterized in that collector plate and display are housed on high-tension line or equipment, with lead collector plate is electrically connected with display.
2, high pressure liquid crystal display as claimed in claim 1 is characterized in that described display is on the base in housing circuit board, display screen to be housed, and the components and parts that rectifier, frequency divider, display screen are electrically connected successively are housed on the circuit board.
3, high pressure liquid crystal display as claimed in claim 1 is characterized in that described display is a LCD, and collector plate is that aluminium sheet is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205712 CN2288450Y (en) | 1997-01-07 | 1997-01-07 | High-voltage liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205712 CN2288450Y (en) | 1997-01-07 | 1997-01-07 | High-voltage liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2288450Y true CN2288450Y (en) | 1998-08-19 |
Family
ID=33925883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205712 Expired - Fee Related CN2288450Y (en) | 1997-01-07 | 1997-01-07 | High-voltage liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2288450Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348830C (en) * | 2004-04-11 | 2007-11-14 | 宁波天安集团互感器有限公司 | Passive electromagnetic lock |
-
1997
- 1997-01-07 CN CN 97205712 patent/CN2288450Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348830C (en) * | 2004-04-11 | 2007-11-14 | 宁波天安集团互感器有限公司 | Passive electromagnetic lock |
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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 |