CN110058072A - A kind of electroscope with contact detection - Google Patents

A kind of electroscope with contact detection Download PDF

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Publication number
CN110058072A
CN110058072A CN201810049590.5A CN201810049590A CN110058072A CN 110058072 A CN110058072 A CN 110058072A CN 201810049590 A CN201810049590 A CN 201810049590A CN 110058072 A CN110058072 A CN 110058072A
Authority
CN
China
Prior art keywords
contact
electroscope
electrode
high voltage
electrode contact
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.)
Pending
Application number
CN201810049590.5A
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Chinese (zh)
Inventor
张宏宇
王力
徐翔
巫世鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yuan Yuan Industrial (shanghai) Co Ltd
Original Assignee
Yuan Yuan Industrial (shanghai) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yuan Yuan Industrial (shanghai) Co Ltd filed Critical Yuan Yuan Industrial (shanghai) Co Ltd
Priority to CN201810049590.5A priority Critical patent/CN110058072A/en
Publication of CN110058072A publication Critical patent/CN110058072A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145Indicating the presence of current or voltage
    • G01R19/155Indicating the presence of voltage
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

The present invention relates to a kind of electroscopes with contact detection, to detect on electrical equipment with the presence or absence of operating voltage, the voltage electroscope includes high voltage testing device and detection device, the detection device includes the ontology for being mounted on high voltage testing device front end and the detection circuit that body interior is arranged in, the detection circuit includes first electrode contact, second electrode contact, third electrode contacts, current-limiting resistance, isolation optocoupler, light emitting diode, power supply and divider resistance, the first electrode contact, current-limiting resistance, the photophore of isolation optocoupler and second electrode contact are sequentially connected, the power supply, the light-receiving device of isolation optocoupler, light emitting diode and divider resistance are in turn connected to form circuit.Compared with prior art, the present invention has many advantages, such as contact detection, is convenient for measuring.

Description

A kind of electroscope with contact detection
Technical field
The present invention relates to operating voltage electroscopic devices on a kind of electrical equipment, can identify safety and danger more particularly, to a kind of The electroscope of dangerous voltage.
Background technique
Electroscope is whether a kind of detection object is charged and the instrument of rough estimate carried charge size.High voltage electroscope is High-tension apparatus of the main test equipment voltage-to-ground in 1000V or more.Currently, well known high voltage electroscope is by three part groups At being detection part, insulated part and handshake part respectively.What is be widely used on the market has light emitting-type, sound-light type and windmill type Three kinds.When the contact electrode of electroscope is touched testee by operator, when measured object electricity with higher relative to the earth When pressure, different types of electroscope can prompt whether operator's measured object charges with different modes.
Current high voltage electroscope most on the market all has self-checking, can be by selftest module come to electroscope Quality is judged.But there is no modules whether just to can ensure that electroscope contact electrode and measured object for most of high voltage electroscopes Really contact.It is easy to cause operator's false judgment in this way, so that mistake occurs in testing result.If maintenance personal is directly right at this time Measured object maintenance, then may cause personnel casualty accidents.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind with contact detection Electroscope.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of electroscope with contact detection, to detect with the presence or absence of operating voltage on electrical equipment, which is tested Electric appliance includes high voltage testing device and detection device, and the detection device includes the ontology for being mounted on high voltage testing device front end And the detection circuit of body interior is set, the detection circuit includes first electrode contact, second electrode contact, third Electrode contacts, current-limiting resistance, isolation optocoupler, light emitting diode, power supply and divider resistance, the first electrode contact, current limliting Resistance, the photophore of isolation optocoupler and second electrode contact are sequentially connected, the power supply, isolation optocoupler light-receiving device, shine Diode and divider resistance are in turn connected to form circuit, the first electrode contact and second electrode contact and to be measured electrical Equipment surface contact, described third electrode contacts one end is linked between current-limiting resistance and the photophore of isolation optocoupler, another End is connect with high voltage testing device.
The ontology is the U-shaped structure of lower openings, and the first electrode contact and second electrode contact are set respectively It sets at two tops of U-shaped structure, the high voltage testing device protrudes into the lower openings and third electrode contacts electricity of U-shaped structure Connection.
The high voltage testing device includes sequentially connected handle, insulating part and indicator, the contact of the indicator Electrode is connect by extension with the other end of third electrode contacts.
Handguard and the anti-skidding insulating layer of polytetrafluoroethylene (PTFE), the anti-skidding insulating layer of the polytetrafluoroethylene (PTFE) are arranged on the handle Outer surface is equipped with spiral anti-skid chequer.
The insulating part is equipped with limit mark.
The electrical equipment includes electric wire.
The model TLP521 linear optical coupling of the isolation optocoupler.
The handle is hollow telescoping handle.
Two tops of the U-shaped structure are respectively equipped with the hook connecting with first electrode contact and second electrode contact Or fixing clamp.
Compared with prior art, the invention has the following advantages that
One, contact detection: the present invention is by being additionally arranged contact detecting apparatus at the top of original high voltage electroscope, not only Can overcome the shortcomings of existing high voltage electroscope can not detect whether electroscope contact electrode correctly touches testee, it is ensured that Contact electrode is correctly contacted with measured object, the safety of measurement is effectively guaranteed, and also can be carried out high voltage testing, structure letter Single, quality is low, at low cost, easy to operate, effectively reduces the generation of human accident.
Two, be convenient for measuring: the present invention can have easily and effectively in two tops of U-shaped structure setting hook or fixing clamp It is fixed with testee physics, cooperation contact detection can more accurately judge whether to contact, and increase reliability.
Detailed description of the invention
Fig. 1 is the schematic diagram of detection circuit.
Fig. 2 is the connection figure of detection device and electric wire.
Fig. 3 is the structure chart of high voltage testing device.
Fig. 4 is that assembling of the invention uses structure chart.
Description of symbols in figure:
1- indicator, 2- limit mark, 3- insulating part, 4- handguard, 5- handle, 6- extension 7- contact electrode, 8- paillon.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in Figs 1-4, the present invention increases a detection device before the electrode contacts of general high voltage electroscope, to sentence Whether disconnected testee effectively contacts.The detection circuit of detection device includes current-limiting resistance, isolation optocoupler, light emitting diode and one A power module.When user touches electric wire using electroscope, whether the detection circuit of electroscope first can judge electroscope Electric wire really is touched, the LED light of electroscope detection circuit can light when electric wire is accessed, and illustrate electrical verification at this time Device and line contacts are good, and then the rear end of electroscope can detecte out whether electric wire charges.
Working principle of the present invention is as follows:
First electrode contact and the first electricity when two tops of the U-shaped ontology of electroscope and line contacts, in detection circuit Pole contact can pass through first current-limiting resistance subsequently into the photophore of optocoupler with conductive contact, electric current.This can be isolated in optocoupler Partial electricity, and an optical signal is generated, then light-receiving device will receive optical signal and be translated into electric signal, finally make Light emitting diode can be lit, and prove that electroscope and line contacts are intact at this time.
When detection device confirmation line contacts are good, electroscope work, when examined object contacts electrode contacts, from The charge of body institute band can pass on the paillon of the indicator in high voltage electroscope.Since like charges are mutually exclusive, paillon will be certainly It is dynamic to separate, it opens angled.The size of object carried charge can be estimated according to the angled size of two paillons.Then according to not With the type of high voltage electroscope, there is different reminding methods, light emitting-type electroscope can be used, electroscope can shine when there is electricity User's measured object is reminded to charge, in addition common there are also sound-light type and windmill-shaped high voltage electroscopes.

Claims (9)

1. a kind of electroscope with contact detection, to detect on electrical equipment with the presence or absence of operating voltage, which is characterized in that The voltage electroscope includes high voltage testing device and detection device, and the detection device includes before being mounted on high voltage testing device The ontology at end and the detection circuit that body interior is arranged in, the detection circuit include first electrode contact, second electrode Contact, third electrode contacts, current-limiting resistance, isolation optocoupler, light emitting diode, power supply and divider resistance, the first electrode Contact, current-limiting resistance, the photophore of isolation optocoupler and second electrode contact are sequentially connected, the power supply, isolation optocoupler by Light device, light emitting diode and divider resistance are in turn connected to form circuit, the first electrode contact and second electrode contact with Electrical equipment surface contact to be measured, described third electrode contacts one end is linked into the photophore of current-limiting resistance and isolation optocoupler Between, the other end is connect with high voltage testing device.
2. a kind of electroscope with contact detection according to claim 1, which is characterized in that the ontology is lower part The U-shaped structure of opening, the first electrode contact and second electrode contact are separately positioned on two tops of U-shaped structure, institute The lower openings that the high voltage testing device stated protrudes into U-shaped structure are electrically connected with third electrode contacts.
3. a kind of electroscope with contact detection according to claim 1, which is characterized in that the high voltage testing dress It sets including sequentially connected handle, insulating part and indicator, the contact electrode of the indicator passes through extension and third electrode The other end of contact connects.
4. a kind of electroscope with contact detection according to claim 3, which is characterized in that be arranged on the handle Handguard and the anti-skidding insulating layer of polytetrafluoroethylene (PTFE), the anti-skidding insulating layer outer surface of the polytetrafluoroethylene (PTFE) are equipped with spiral anti-skid chequer.
5. a kind of electroscope with contact detection according to claim 3, which is characterized in that set on the insulating part Limited mark.
6. a kind of electroscope with contact detection according to claim 1, which is characterized in that the electrical equipment packet Include electric wire.
7. a kind of electroscope with contact detection according to claim 1, which is characterized in that the isolation optocoupler Model TLP521 linear optical coupling.
8. a kind of electroscope with contact detection according to claim 3, which is characterized in that the handle is hollow Telescoping handle.
9. a kind of electroscope with contact detection according to claim 2, which is characterized in that the U-shaped structure Two tops are respectively equipped with the hook or fixing clamp connecting with first electrode contact and second electrode contact.
CN201810049590.5A 2018-01-18 2018-01-18 A kind of electroscope with contact detection Pending CN110058072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810049590.5A CN110058072A (en) 2018-01-18 2018-01-18 A kind of electroscope with contact detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810049590.5A CN110058072A (en) 2018-01-18 2018-01-18 A kind of electroscope with contact detection

Publications (1)

Publication Number Publication Date
CN110058072A true CN110058072A (en) 2019-07-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810049590.5A Pending CN110058072A (en) 2018-01-18 2018-01-18 A kind of electroscope with contact detection

Country Status (1)

Country Link
CN (1) CN110058072A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110376423A (en) * 2019-07-30 2019-10-25 国网河南省电力公司商丘供电公司 A kind of electric power apparatus examination high voltage electroscope
CN113917243A (en) * 2021-10-09 2022-01-11 重庆师范大学 High-precision optical electroscope device and system based on surface plasmon

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB565049A (en) * 1943-07-24 1944-10-24 Miron Peter Rubert Improvements in or relating to electric testing device
CN2065761U (en) * 1989-11-24 1990-11-14 李奕刚 Liquid crystal ad/dc induction electricity testing device
CN2556652Y (en) * 2002-06-16 2003-06-18 滕洪福 Universal test pencil
CN101703331A (en) * 2009-10-30 2010-05-12 刘博宇 Lightning-protection shoes
CN102175935A (en) * 2011-01-14 2011-09-07 陆晋荣 Intelligent multifunctional electric appliance testing table and control method
CN202256463U (en) * 2011-10-12 2012-05-30 赵成仁 Residual voltage interference resistant multifunctional electroscope
CN103954826A (en) * 2014-05-09 2014-07-30 国家电网公司 High-voltage alternating-current electroscope
CN203838231U (en) * 2014-05-09 2014-09-17 国家电网公司 High-voltage electricity test device
CN105717348A (en) * 2016-04-19 2016-06-29 国网江西省电力公司南昌供电分公司 Electroscope capable of achieving agile steering
CN205769338U (en) * 2016-05-24 2016-12-07 固安信通信号技术股份有限公司 Track pulse transmitter
CN207924008U (en) * 2018-01-18 2018-09-28 元壤实业(上海)有限公司 A kind of electroscope with contact detection

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB565049A (en) * 1943-07-24 1944-10-24 Miron Peter Rubert Improvements in or relating to electric testing device
CN2065761U (en) * 1989-11-24 1990-11-14 李奕刚 Liquid crystal ad/dc induction electricity testing device
CN2556652Y (en) * 2002-06-16 2003-06-18 滕洪福 Universal test pencil
CN101703331A (en) * 2009-10-30 2010-05-12 刘博宇 Lightning-protection shoes
CN102175935A (en) * 2011-01-14 2011-09-07 陆晋荣 Intelligent multifunctional electric appliance testing table and control method
CN202256463U (en) * 2011-10-12 2012-05-30 赵成仁 Residual voltage interference resistant multifunctional electroscope
CN103954826A (en) * 2014-05-09 2014-07-30 国家电网公司 High-voltage alternating-current electroscope
CN203838231U (en) * 2014-05-09 2014-09-17 国家电网公司 High-voltage electricity test device
CN105717348A (en) * 2016-04-19 2016-06-29 国网江西省电力公司南昌供电分公司 Electroscope capable of achieving agile steering
CN205769338U (en) * 2016-05-24 2016-12-07 固安信通信号技术股份有限公司 Track pulse transmitter
CN207924008U (en) * 2018-01-18 2018-09-28 元壤实业(上海)有限公司 A kind of electroscope with contact detection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110376423A (en) * 2019-07-30 2019-10-25 国网河南省电力公司商丘供电公司 A kind of electric power apparatus examination high voltage electroscope
CN113917243A (en) * 2021-10-09 2022-01-11 重庆师范大学 High-precision optical electroscope device and system based on surface plasmon
CN113917243B (en) * 2021-10-09 2023-07-25 重庆师范大学 High-precision optical electroscope device and system based on surface plasmons

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