CN205539155U - Case modified line cable magnetic field manifold type electrified indicating ware - Google Patents
Case modified line cable magnetic field manifold type electrified indicating ware Download PDFInfo
- Publication number
- CN205539155U CN205539155U CN201620248642.8U CN201620248642U CN205539155U CN 205539155 U CN205539155 U CN 205539155U CN 201620248642 U CN201620248642 U CN 201620248642U CN 205539155 U CN205539155 U CN 205539155U
- Authority
- CN
- China
- Prior art keywords
- circuit
- modified line
- indicator
- line cable
- magnetic field
- 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.)
- Active
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to a case modified line cable magnetic field manifold type electrified indicating ware, including getting electric metal response piece and indicator body, get electric metal response piece cladding formation electromagnetic induction on the case becomes the cable insulation surface and connect, to get electric metal response piece and be connected with the signal input part electricity of indicator body, the indicator body includes protection circuit, charging circuit, switch circuit and luminous component. The utility model discloses utilize the electrostatic field of high tension cable production itself, cladding foil on the outer wall of half conductive rubber cover, response principle according to electric capacity, can produce induced charge on foil, it is leading -in to the circuit in the electric charge, charge to electric capacity, when the charge integration produces certain voltage to the certain degree, automatic the opening of switch portion spare at electric capacity both ends is discharged, light the luminous component in the return circuit of discharging, judge in view of the above whether electrified the cable is, thereby improved case modified line cable and tested the fail safe nature that the electrician did, therefore, the clothes hanger is strong in practicability, and has high economic value.
Description
Technical field
This utility model relates to a kind of cable tie electrical indicator, particularly to a kind of cable tie electrical indicator applied on all insulation equipment such as cable branch box, case change and ring main unit, belongs to field of electrical equipment.
Background technology
High voltage display device is the high-voltage switch gear kind equipment of national Specification, is the necessary devices preventing electric misoperation, is that one is directly installed on electrical equipment, intuitively demonstrates that electrical equipment is whether with the indicative safety device of working voltage.When equipment is with working voltage, the luminous component of this device flashes, and warning people's high pressure equipment is charged, then without instruction during nothing electricity.The potential indicator commercially sold at present is divided into: contact and contactless two kinds.The signal of contact band electrical indicator is taken from higfh-tension ceramics electric capacity, the capacity of capacitance sensor is usually 10～150P, electric pressure is 6～35KV, now capacitance sensor output signal is small current signal, flashed by rectification circuit, accumulator, on-off circuit and drive circuit driven for emitting lights pipe, reflect the charged situation of high-voltage charged body.Contactless potential indicator is not directly connected to high-voltage charged body, but high voltage produces highfield signal, utilizes the energy driven for emitting lights pipe flicker that the electric field signal of directly sensing obtains, reflects the charged situation of high-voltage charged body.But, in all insulation equipment such as cable branch box, case change and ring main unit, owing to each charging member is all insulation, circuit is the most properly functioning, and operations staff cannot determine, does not also have good solution both at home and abroad at present.Additionally also have a kind of use current methods judge the scheme that circuit is the most charged, i.e. electric current be less than below 1A think that circuit is not charged, think that circuit is charged during more than 1A, but this kind of method easily cause erroneous judgement during because actual track does not mounts load, electric current is again smaller than 1A.
Summary of the invention
The utility model discloses a kind of Novel box modified line cable manifold type potential indicator, it may be installed on end (elbow head, T-shaped cable connector and T II type cable connector), utilize the electrostatic field that high tension cable produces, the outer wall of semi-conductive rubber set obtains the electric charge induced, when charge accumulated to certain voltage, utilize luminous component whether to flash and judge that cable is the most charged, solve the problem that existing potential indicator cannot determine that all insulation equipment is the most charged.
This utility model case modified line cable magnetic field coupling-type potential indicator includes power taking metal sensing chip and indicator body, power taking metal sensing chip is coated on case and becomes formation electromagnetic induction connection on cable insulation layer outer surface, power taking metal sensing chip electrically connects with the signal input part of indicator body, indicator body includes protection circuit, charging circuit, on-off circuit and luminous component, power taking metal sensing chip produces charge inducing under the effect of high-voltaghe compartment power transformation cable electrostatic field, charge inducing imports charging circuit through protection circuit, the charge inducing stored in charging circuit produces trigger voltage and opens on-off circuit to luminous component electric discharge, light-emitting flash prompt box modified line cable tie electricity after luminous component energising.
This utility model case modified line cable magnetic field coupling-type potential indicator utilizes the electrostatic field that high tension cable itself produces, the outer wall of semi-conductive rubber set is coated with foil, principle of induction according to electric capacity, charge inducing can be produced on foil, electric charge is imported in circuit, electric capacity is charged, when charge accumulated produces certain voltage to a certain extent, the switch block at electric capacity two ends automatically opens up and discharges, light the luminous component in discharge loop, judge that cable is the most charged accordingly, thus improve the security reliability of case modified line cable electrical verification work, practical, there is higher economic worth.
Accompanying drawing explanation
Fig. 1 is case modified line cable magnetic field coupling-type potential indicator schematic diagram of the present invention.
Fig. 2 is the schematic diagram of a kind of specific implementation of the present invention.
In Fig. 1 and 2,111 is power taking metal sensing chip.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As it is shown in figure 1, this utility model case modified line cable magnetic field coupling-type potential indicator schematic diagram.Case modified line cable magnetic field coupling-type potential indicator includes power taking metal sensing chip and indicator body.Power taking metal sensing chip is coated on case and becomes formation electromagnetic induction connection on cable insulation layer outer surface, power taking metal sensing chip electrically connects with the signal input part of indicator body, indicator body includes protection circuit, charging circuit, on-off circuit and luminous component, power taking metal sensing chip produces charge inducing under the effect of high-voltaghe compartment power transformation cable electrostatic field, charge inducing imports charging circuit through protection circuit, the charge inducing stored in charging circuit produces trigger voltage and opens on-off circuit to luminous component electric discharge, light-emitting flash prompt box modified line cable tie electricity after luminous component energising.The luminous component of this programme can select neon bulb to realize, i.e. luminous component includes current-limiting resistance R and the neon bulb forming series connection.In order to improve the stability of circuit, filter capacitor can be set up at circuit two ends, i.e. filter capacitor C is set between indicator body signal input part and earth terminal.Above scheme utilizes field coupling principle to obtain the electric energy for driven for emitting lights parts continuous firing on high voltage cable insulating barrier outer surface, by the charged situation lighting flash for prompting cable of luminous component, solve the problem that existing potential indicator cannot record all insulation cable live line work state, bring great convenience to on-the-spot Operation and Maintenance, be effectively increased the safety of operator.
As in figure 2 it is shown, a kind of specific implementation of this programme case modified line cable magnetic field coupling-type potential indicator.Power taking metal sensing chip uses conductor wire to be connected with indicator body; indicator body is encapsulated in electro-insulating rubber housing; specifically indicator body also includes electro-insulating rubber housing; protection circuit, charging circuit, on-off circuit and luminous component are encapsulated in electro-insulating rubber housing, and the luminous end of luminous component is located in electro-insulating rubber housing outer surface.Electro-insulating rubber housing is that the normal work of indicator body provides good insulation and shielding environment, and service life and the stability of indicator body are greatly improved.nullIn order to on-the-spot easy for installation，Ensure that indicator can be fixed on the effectively detection position of cable reliably，This programme have also been devised a kind of parts that can indicator be fixed on cable，Specifically electro-insulating rubber housing includes enclosure body and band parts，Protection circuit it is packaged with in enclosure body、Charging circuit、On-off circuit and luminous component，The luminous end of luminous component is located on enclosure body outer surface，Band parts include band bar first and band bar second，One end of band bar first is fixed on the side of enclosure body，One end of band bar second is fixed on the opposite side of enclosure body，It is protruding that the other end side of band bar first is provided with regularly arranged elastic buckles，The other end of band bar second is provided with elastic collar head，Elastic buckles projection becomes snapping with elastic collar capitiform，The band bar first other end forms the fixedly sleeved of adjustable-tightness with the band bar second other end by above-mentioned snapping.Indicator body can be effectively set with and be fixed on high tension cable by this structure, it is possible to regulate the tightness of socket according to the fineness of cable, convenient for installation and maintenance, the suitability is good.Part bifurcated scratching in order to prevent band bar first from passing elastic collar head affects the mounting stability of indicator body, and the band bar second other end of this programme is also arranged with bunching ring, and the band bar first other end through elastic collar head is entangled and tightens by bunching ring.In order to improve the reliability of indicator further, it is ensured that it uses in rugged environment for a long time, this programme also in enclosure body encapsulated epoxy resin realize above-mentioned technique effect.
Circuit, module and the electronic devices and components related in such scheme, in addition to special instruction, can select design generally in the art and scheme according to its concrete function realized, it is also possible to selects other design and schemes according to actual needs.
Metal sensing chip is coated on case modified line cable surface of insulating layer (forming capacitor between metal sensing chip and wire rope) by the case modified line cable magnetic field coupling-type potential indicator of this programme, field coupling principle is utilized to obtain the electric energy of luminous component continuous firing, accumulator is utilized faint electric power signal to be stored, on-off circuit and luminous component realization display lamp when case modified line cable tie electricity is utilized to flash continuously and remind track walker's banded cable electricity condition, use the reliability and stability of insulating rubber material intensifier circuit work, have the following characteristics that the mode of (1) this indicator employing electro-insulating rubber band, inside is equipped with high-quality epoxy resin encapsulated, can use the most for a long time, inside has taken into full account various abnormal factors, indicator is made to have height reliability；(2) solve " electricity is invisible " problem, this device is to use electrostatic induction principle, under the effect of high pressure equipment surrounding electric field, electric field energy is utilized to reach with the purpose of flash of light display electrification in high voltage, indicative the strongest, when high pressure equipment is with working voltage, this device luminous tube flashing in shade, directly perceived, clear, eye-catching；(3) reliability is high, and the life-span is long, and this device all uses long-lived components and parts, and the luminous tube life-span is permanent, and three-phase equipment split-phase shows, reliability more improves；(4) have every advantage and not a single disadvantage safely to running, do not increase loaded down with trivial details operation operation, without supplementary energy, without secondary line, non-maintaining；(5) strong interference immunity, split-phase shows, contact by adjacent phase (road) interference, is not disturbed by the induced voltage of dead line, does not haves instruction by mistake；(6) more than cable running voltage 3000VAC can start the flicker of potential indicator lamp.Improving and feature based on above, the case modified line cable magnetic field coupling-type potential indicator of this programme is compared existing cable tie electrical indicator and is had substantive distinguishing features and progress.
The case modified line cable magnetic field coupling-type potential indicator of this programme is not limited to detailed description of the invention disclosure, the technical scheme occurred in embodiment can be with individualism, can also mutually comprise, those skilled in the art combine, according to this programme, the simple alternative that common knowledge makes and fall within the scope of this programme.
Claims (7)
1. case modified line cable magnetic field coupling-type potential indicator, it is characterized in that including power taking metal sensing chip and indicator body, described power taking metal sensing chip is coated on case and becomes formation electromagnetic induction connection on cable insulation layer outer surface, described power taking metal sensing chip electrically connects with the signal input part of described indicator body, described indicator body includes protection circuit, charging circuit, on-off circuit and luminous component, described power taking metal sensing chip produces charge inducing under the effect of high-voltaghe compartment power transformation cable electrostatic field, described charge inducing imports described charging circuit through described protection circuit, the described charge inducing stored in described charging circuit produces the trigger voltage described on-off circuit of unlatching and discharges to described luminous component, after the energising of described luminous component, light-emitting flash points out described case modified line cable tie electricity.
Case modified line cable magnetic field coupling-type potential indicator the most according to claim 1, it is characterised in that described luminous component includes current-limiting resistance R and the neon bulb forming series connection.
Case modified line cable magnetic field coupling-type potential indicator the most according to claim 1 and 2, it is characterised in that be provided with filter capacitor C between described indicator body signal input part and earth terminal.
Case modified line cable magnetic field coupling-type potential indicator the most according to claim 1 and 2; it is characterized in that; described indicator body also includes electro-insulating rubber housing; described protection circuit, charging circuit, on-off circuit and luminous component are encapsulated in described electro-insulating rubber housing, and the luminous end of described luminous component is located in described electro-insulating rubber housing outer surface.
nullCase modified line cable magnetic field coupling-type potential indicator the most according to claim 4，It is characterized in that，Described electro-insulating rubber housing includes enclosure body and band parts，Described protection circuit it is packaged with in described enclosure body、Charging circuit、On-off circuit and luminous component，The luminous end of described luminous component is located on described enclosure body outer surface，Described band parts include band bar first and band bar second，One end of described band bar first is fixed on the side of described enclosure body，One end of described band bar second is fixed on the opposite side of described enclosure body，It is protruding that the other end side of described band bar first is provided with regularly arranged elastic buckles，The other end of described band bar second is provided with elastic collar head，Described elastic buckles is protruding and described elastic collar capitiform becomes snapping，The described band bar first other end forms the fixedly sleeved of adjustable-tightness with the described band bar second other end by described snapping.
Case modified line cable magnetic field coupling-type potential indicator the most according to claim 5, it is characterised in that be also arranged with bunching ring on the described band bar second other end, the described band bar first other end through described elastic collar head is entangled and tightens by described bunching ring.
Case modified line cable magnetic field coupling-type potential indicator the most according to claim 5, it is characterised in that encapsulated epoxy resin in described enclosure body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620248642.8U CN205539155U (en) | 2016-03-29 | 2016-03-29 | Case modified line cable magnetic field manifold type electrified indicating ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620248642.8U CN205539155U (en) | 2016-03-29 | 2016-03-29 | Case modified line cable magnetic field manifold type electrified indicating ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539155U true CN205539155U (en) | 2016-08-31 |
Family
ID=56786327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620248642.8U Active CN205539155U (en) | 2016-03-29 | 2016-03-29 | Case modified line cable magnetic field manifold type electrified indicating ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205539155U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699746A (en) * | 2016-03-29 | 2016-06-22 | 国网上海市电力公司 | Pad-mounted transformer cable magnetic field coupling type charge indicator |
| CN106353571A (en) * | 2016-08-10 | 2017-01-25 | 国网浙江省电力公司金华供电公司 | Live part verification bar with automatic outage loop |
| CN108717150A (en) * | 2018-05-11 | 2018-10-30 | 咸亨国际（杭州）电气制造有限公司 | A kind of Portable electricity detection device for electric cable and its method |
| WO2021174938A1 (en) * | 2020-03-02 | 2021-09-10 | 青岛经济技术开发区海尔热水器有限公司 | Electrical leakage induction element, electrical leakage detection circuit and water heater |
-
2016
- 2016-03-29 CN CN201620248642.8U patent/CN205539155U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699746A (en) * | 2016-03-29 | 2016-06-22 | 国网上海市电力公司 | Pad-mounted transformer cable magnetic field coupling type charge indicator |
| CN106353571A (en) * | 2016-08-10 | 2017-01-25 | 国网浙江省电力公司金华供电公司 | Live part verification bar with automatic outage loop |
| CN106353571B (en) * | 2016-08-10 | 2019-05-07 | 国网浙江省电力公司金华供电公司 | With the electricity testing operation rod for automatically powering off circuit |
| CN108717150A (en) * | 2018-05-11 | 2018-10-30 | 咸亨国际（杭州）电气制造有限公司 | A kind of Portable electricity detection device for electric cable and its method |
| CN108717150B (en) * | 2018-05-11 | 2020-06-26 | 咸亨国际（杭州）电气制造有限公司 | Portable cable electricity testing device and method thereof |
| WO2021174938A1 (en) * | 2020-03-02 | 2021-09-10 | 青岛经济技术开发区海尔热水器有限公司 | Electrical leakage induction element, electrical leakage detection circuit and water heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205539155U (en) | Case modified line cable magnetic field manifold type electrified indicating ware | |
| CN102544930B (en) | Leakage protection plug | |
| CN207882337U (en) | High voltage display device with self-checking function | |
| CN109600046A (en) | Failure automatically switches DC-DC converter | |
| CN111029962A (en) | Test electric formula insulating bar | |
| CN102354869B (en) | Electricity leakage protection plug with alarm device | |
| CN101793917A (en) | Induction type electric display and short circuit grounding fault comprehensive indicator | |
| CN102338838A (en) | Creepage detection circuit | |
| CN202183530U (en) | Electric leakage protection plug with alarming device | |
| CN101344542A (en) | Electric field induction type high pressure charge indicator | |
| CN202453417U (en) | High-voltage live displaying and locking device for intelligent induction type switch cabinet | |
| CN105699746A (en) | Pad-mounted transformer cable magnetic field coupling type charge indicator | |
| CN201750009U (en) | Household appliance leakage protection socket | |
| CN204652727U (en) | Remote monitor system for road lamp | |
| CN203232085U (en) | High-voltage live display device | |
| CN201083790Y (en) | Electric field induction -type high-voltage charge indicator | |
| CN207263820U (en) | Low-voltage overhead line road charged display device | |
| CN202564707U (en) | Electric leakage protection plug | |
| CN105842525A (en) | Method of determining electrification of box transformer cable by adopting magnetic field coupling principle | |
| CN202257840U (en) | Sound and light alarm device for grounding wires | |
| CN201654158U (en) | Induction power-on display and short circuit earth fault integrated indicator | |
| CN105587420A (en) | Diesel engine starting and protecting controller | |
| CN201181313Y (en) | High voltage live display device | |
| CN216145776U (en) | Earthing device for electric power construction | |
| CN204595070U (en) | High voltage display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |