CN201765269U - Passive presence indicating device - Google Patents
Passive presence indicating device Download PDFInfo
- Publication number
- CN201765269U CN201765269U CN2010205267162U CN201020526716U CN201765269U CN 201765269 U CN201765269 U CN 201765269U CN 2010205267162 U CN2010205267162 U CN 2010205267162U CN 201020526716 U CN201020526716 U CN 201020526716U CN 201765269 U CN201765269 U CN 201765269U
- Authority
- CN
- China
- Prior art keywords
- lcd
- liquid crystal
- passive
- lcd liquid
- conductor
- 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
Links
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to an indicating device for detecting whether power transformation and distribution electrical equipment in a medium voltage system (3.6KV to 40.5KV) has a voltage state owing to the operation of a charged conductor, especially to a passive presence indicating device, which is differentiated from other indicating device due to the followings: the passive presence indicating device comprises a passive element for sensing the voltage around a detected conductor, an LCD liquid crystal display panel a lining board configured with the LCD liquid crystal display, an insulated base installation plate for the installation and linkage with the detected conductor and an insulated outer cover provided with an LCD liquid crystal observation window, wherein one face of the lining board is in positioned connection with the insulated base installation plate and the other face of the lining board is equipped with the LCD liquid crystal display panel, the passive element, the LCD liquid crystal display panel and the lining board are all arranged inside a sealing space formed by the insulated base installation plate and the insulated outer cover, and an induction voltage generated by the passive element is applied to a power source interface of the LCD liquid crystal display panel in order to drive the LCD liquid crystal display panel to display whether the detected conductor is charged; the indicating device can fast detect the information indicative of the voltage state of the detected conductor.
Description
Technical field
The utility model relate to detect in the medium voltage network (3.6KV-40.5KV) become, display device that whether distribution electric equipment operation energized conductor exists voltage status, especially passive charged display device.
Background technology
At present, known charged display device is to provide monitored main circuit voltage status information to the operations staff.One comprises sensing unit and display unit two parts, it is plug that sensor unit adopts ceramic condenser, shell forms with poured with epoxy resin, utilize the decompression principle of high-voltage capacitance to carry out signals collecting, exporting a power current signal connects by secondary line and display unit, electrification display in service often needs more switching display neon bulb, increases maintenance workload.And display unit directly connects with high-tension circuit by high-voltage capacitance, also has potential safety hazard, and the breakdown generation is particularly arranged during high-voltage capacitance.And the inside and outside device in family uses versatility not strong.Especially outdoor displaying device is at wind, rain, snow weather, and is barely satisfactory especially under the direct contact conditions of temperature and humidity fluctuation and sunlight, need add the equipped case of putting in addition and install.
Summary of the invention
Technical problem to be solved in the utility model is the technical deficiency at above-mentioned existence, and a kind of passive charged display device that need not current return and other power-assisted is provided.
The utility model is that the technical scheme that its technical matters of solution is adopted is: passive charged display device, its difference is: it comprises the passive device that is used to respond to voltage around the detected conductor, the LCD LCD panel, liner plate with LCD LCD panel phase configuration, be used for the insulator foot installing plate that connects being installed with detected conductor, be provided with the insulation cover of LCD liquid crystal watch window, the one side of described liner plate is located by connecting with the insulator foot installing plate, the another side of liner plate is installed the LCD LCD panel, described passive device, LCD LCD panel and liner plate thereof all are arranged in the seal cavity of insulator foot installing plate and insulation cover formation, show whether detected conductor is charged thereby the induced voltage that passive device produces adds to the power interface driving LCD LCD panel of LCD LCD panel.
By above scheme, the hermetically sealed encapsulating in space that described insulator foot installing plate and insulation cover constitute.
By above scheme, use from the locking nylon cable tie between described insulator foot installing plate and the detected conductor to link to each other.
Principle of the present utility model is based on LCD LCD principle.Liquid crystal places between two electro-conductive glass, driving by electric field around the conductor, cause the field effect of liquid crystal molecule twisted-nematic, with control light source transmission or shielding function, when glass substrate does not add electric field, light is followed liquid crystal to do 110 degree through Polarizer and is reversed, by the below Polarizer, and the liquid crystal panel display white.When glass substrate added electric field, liquid crystal molecule produces assortment to be changed, and light is kept former direction by the liquid crystal molecule space, is covered by the below Polarizer, and light is absorbed and can't appears, and liquid crystal panel demonstrates the black lightning pattern sign that sets in advance.Liquid crystal display be utilize passive device draw conductor around electric field energy is provided, make panel reach display effect, confirm whether charged existence.
The utility model utilize energized conductor around electric field provide the induced voltage to the passive device energy, passive device has played the effect of a similar switch and power supply.Electric field driven LCD around conductor is charged, the physical characteristics of performance liquid crystal: arrange during energising and become orderly, light is passed through easily, show the electricity sign; Fall into disarray during no power stops light to pass through, and display does not have demonstration.
The beneficial effects of the utility model are that this display device can be measured detected conductor voltage status indication information fast, and is to be free on independent extra source outside the existing system.Assist the trace fault occurrence positions, the generation of reduction accident, raising personnel's safe operation.
Description of drawings
Fig. 1 is the work electrical schematic diagram of LCD LCD of the present utility model when not powering up;
Fig. 2 is the work electrical schematic diagram of LCD LCD of the present utility model when powering up;
Fig. 3 is a cut-open view of the present utility model;
Fig. 4 is the A portion structure enlarged drawing of Fig. 3;
Fig. 5 is a vertical view of the present utility model;
Fig. 6 is that the utility model is installed on the charged display effect figure that presents on the exposed round conductor;
Fig. 7 is that the utility model is installed on the display effect figure under the electroless state that presents on the bus-bars conductor;
Fig. 8 is that the utility model is installed on the display effect figure under the electriferous state that presents on the bus-bars conductor;
Wherein, 1-insulation cover, 2-LCD LCD panel, 3-passive device, 4-liner plate, 5-insulator foot installing plate, 6-sealing encapsulating encapsulation mouth, the detected conductor of 7-.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, passive charged display device, it comprises the passive device 3 that is used to respond to voltage around the detected conductor, LCD LCD panel 2, liner plate 4 with LCD LCD panel 2 phase configuration, be used for the insulator foot installing plate 5 that connects being installed with detected conductor, be provided with the insulation cover 1 of LCD liquid crystal watch window, the one side of described liner plate 4 is located by connecting with insulator foot installing plate 5, the another side of liner plate 4 is installed LCD LCD panel 2, described passive device 3, LCD LCD panel 2 and liner plate 4 thereof all are arranged in the seal cavity that insulator foot installing plate 5 and insulation cover 1 constitute, and drive LCD LCD panel 2 and show whether detected conductor 7 is charged thereby the induced voltage that passive device 3 produces adds to the power interface of LCD LCD panel 2.
Preferably, the hermetically sealed encapsulating in space of described insulator foot installing plate 5 and insulation cover 1 formation.
Preferably, use from the locking nylon cable tie between described insulator foot installing plate 5 and the detected conductor 7 and link to each other.
Preferably, the utility model device is by silicone insulation outer cover 1, LCD LCD panel 2, passive device 3, assemble with the liner plate 4 of LCD LCD panel 2 phase configuration, insulator foot installing plate 5 are hermetically sealed, add polarized plug and the complete covering device of fixing detected conductor locking nylon cable tie formation, link to each other with detected conductor 7.When if detected conductor 7 has the specified voltage parameter of device, the watch window that the voltage of electric field of detected conductor 7 causes LCD LCD panel 2 to constitute shows black lightning arrow mark; If detected conductor 7 do not have voltage, because of its no voltage of electric field, then LCD liquid crystal display window maintains the original state, and is able to point out detected conductor 7 whether charged purpose.
A kind of assemble method of the present utility model: in Fig. 3, liner plate 4 is linked to each other with insulator foot installing plate 5 location, then passive device 3 is linked to each other with LCD LCD panel 2, then enclosure silicone insulation outer cover again; At last as shown in Figure 5, with sealing encapsulating encapsulation mouthful 6 injections of encapsulation glue from the silicone insulation outer cover, assembling is finished.
A kind of installation method of the present utility model: passive charged display device, the light source place is being arranged, confirm in the medium voltage network (3.6KV-40.5KV) that energized conductor does not have under the state of electricity, directly pass tie-hole locking behind the conductor on the insulator foot installing plate 5 with the locking nylon cable tie, (special occasions can be regulated the visual observation direction with polarized plug) cuts off redundance with electricians' plier and gets final product.
As shown in Figure 6, be installed on the charged display effect figure that presents on the exposed round conductor; As Fig. 7, shown in Figure 8, be installed on the charged display effect figure that presents on the bus-bars conductor and the design sketch under the electroless state.
Above embodiment is preferred embodiment of the present utility model; be not that utility model is done any type of restriction; every foundation technological essence of the present utility model all still belongs in the protection domain of the present utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. passive charged display device, it is characterized in that: it comprises the passive device that is used to respond to voltage around the detected conductor, the LCD LCD panel, liner plate with LCD LCD panel phase configuration, be used for the insulator foot installing plate that connects being installed with detected conductor, be provided with the insulation cover of LCD liquid crystal watch window, the one side of described liner plate is located by connecting with the insulator foot installing plate, the another side of liner plate is installed the LCD LCD panel, described passive device, LCD LCD panel and liner plate thereof all are arranged in the seal cavity of insulator foot installing plate and insulation cover formation, show whether detected conductor is charged thereby the induced voltage that passive device produces adds to the power interface driving LCD LCD panel of LCD LCD panel.
2. passive charged display device as claimed in claim 1 is characterized in that: the hermetically sealed encapsulating in space that described insulator foot installing plate and insulation cover constitute.
3. passive charged display device as claimed in claim 1 or 2 is characterized in that: use from the locking nylon cable tie between described insulator foot installing plate and the detected conductor to link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205267162U CN201765269U (en) | 2010-09-13 | 2010-09-13 | Passive presence indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205267162U CN201765269U (en) | 2010-09-13 | 2010-09-13 | Passive presence indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201765269U true CN201765269U (en) | 2011-03-16 |
Family
ID=43717877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205267162U Expired - Fee Related CN201765269U (en) | 2010-09-13 | 2010-09-13 | Passive presence indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201765269U (en) |
Cited By (3)
| 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 |
| CN109239410A (en) * | 2018-10-13 | 2019-01-18 | 袁玉婷 | Passive presence indicating device |
| CN114705955A (en) * | 2022-03-02 | 2022-07-05 | 中国电子科技集团公司第二十九研究所 | Device and method for testing insulation and voltage resistance of polytetrafluoroethylene high-voltage wire |
-
2010
- 2010-09-13 CN CN2010205267162U patent/CN201765269U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN109239410A (en) * | 2018-10-13 | 2019-01-18 | 袁玉婷 | Passive presence indicating device |
| CN114705955A (en) * | 2022-03-02 | 2022-07-05 | 中国电子科技集团公司第二十九研究所 | Device and method for testing insulation and voltage resistance of polytetrafluoroethylene high-voltage wire |
| CN114705955B (en) * | 2022-03-02 | 2023-04-25 | 中国电子科技集团公司第二十九研究所 | Insulation and voltage resistance testing device and method for polytetrafluoroethylene high-voltage wire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104917062A (en) | Intelligent switch cabinet control system | |
| CN104335019B (en) | Fibre optic temperature sensor | |
| CN201765269U (en) | Passive presence indicating device | |
| KR20200006776A (en) | Distributing board | |
| CN203787830U (en) | Composite monitoring intelligent armored withdrawable high-voltage switch cabinet | |
| CN202004362U (en) | Distribution simulation drawing board of power system | |
| CN104569533B (en) | A kind of external integrated form all-fiber current transformator of isolation circuit breakers | |
| CN202870646U (en) | Transformer oil temperature monitoring system based on GPRS | |
| CN208383971U (en) | Non-contact passive electrification display | |
| CN201562005U (en) | Novel passive high voltage charge indicator | |
| CN207081798U (en) | High-tension cable oversheath fault locator | |
| US9678117B2 (en) | Integral safety display for a test switch | |
| CN203150965U (en) | Cable ring main unit emergency overhaul apparatus | |
| CN206742732U (en) | A kind of high pressure contact cabinet with secondary phase checking device | |
| CN204101621U (en) | A kind of charged display and pick-up unit being applied to 110kV electric system | |
| CN206041229U (en) | High tension switchgear with heat dissipation function | |
| CN205846459U (en) | Solar switch cabinet | |
| CN205231603U (en) | Solid looped netowrk cabinet with keep apart fracture video monitoring equipment | |
| JP3574635B2 (en) | High voltage cable power display | |
| CN204190194U (en) | The temperature measuring equipment of contact in high-tension switch cabinet | |
| CN103311017B (en) | Load switch wire-outlet black box | |
| CN210404430U (en) | Novel electrical insulation cabinet | |
| CN212965262U (en) | On-line insulation monitoring device for switch cabinet | |
| CN216249498U (en) | High-voltage danger warning alarm device for power line | |
| CN213879064U (en) | Ring main unit with cable joint temperature monitoring function |
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: 20110316 Termination date: 20130913 |