CN207924008U - A kind of electroscope with contact detection - Google Patents
A kind of electroscope with contact detection Download PDFInfo
- Publication number
- CN207924008U CN207924008U CN201820083824.3U CN201820083824U CN207924008U CN 207924008 U CN207924008 U CN 207924008U CN 201820083824 U CN201820083824 U CN 201820083824U CN 207924008 U CN207924008 U CN 207924008U
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- contact
- electroscope
- electrode
- high voltage
- electrode contact
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Abstract
The utility model is related to a kind of electroscopes with contact detection, it whether there is operating voltage on electrical equipment to detect, the voltage electroscope includes high voltage testing device and detection device, the detection device includes the detection circuit for being mounted on the ontology of high voltage testing device front end and being arranged in body interior, 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 utility model has many advantages, such as contact detection, is convenient for measuring.
Description
Technical field
The utility model is related to operating voltage electroscopic devices on a kind of electrical equipment, and safety can be identified more particularly, to a kind of
With the electroscope of dangerous voltage.
Background technology
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.It is widely used on the market to have light emitting-type, sound-light type and windmill type
Three kinds.When the contact electrode of electroscope is touched testee by operating personnel, when measured object has higher electricity relative to the earth
When pressure, different types of electroscope can prompt whether operating personnel's measured object charges with different modes.
Current high voltage electroscope most on the market all carries 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 operating personnel's false judgment in this way so that mistake occurs in testing result.If maintenance personal is directly right at this time
Measured object repairs, then may cause casualties accident.
Utility model content
The purpose of this utility model is exactly to be provided a kind of with contact to overcome the problems of the above-mentioned prior art
The electroscope of detection.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of electroscope with contact detection whether there is operating voltage to detect on electrical equipment, which tests
Electric appliance includes high voltage testing device and detection device, and the detection device includes the ontology mounted on high voltage testing device front end
And the detection circuit in 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 be in turn connected to form circuit, the first electrode contact and second electrode contact with it is to be measured electrical
Equipment surface contacts, and 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 stretches 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 couplings of the isolation optocoupler.
The handle is hollow telescoping handle.
Two tops of the U-shaped structure are respectively equipped with the hook with first electrode contact and second electrode contact portion
Or geometrical clamp.
Compared with prior art, the utility model has the following advantages：
One, contact detection：The utility model by being additionally arranged contact detecting apparatus at the top of original high voltage electroscope,
Can not only overcome the shortcomings of existing high voltage electroscope can not detect whether electroscope contact electrode correctly touches testee, really
It has protected contact electrode correctly to contact with measured object, has been effectively guaranteed the safety of measurement, and high voltage testing can also be carried out, tied
Structure is simple, and quality is low, at low cost, easy to operate, effectively reduces the generation of human accident.
Two, it is convenient for measuring：In two tops of U-shaped structure setting hook or geometrical clamp, can have conveniently has the utility model
Effect is fixed with testee physics, and cooperation contact detection can more accurately judge whether to contact, and increase reliability.
Description of the drawings
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 the assembling of the utility model uses structure chart.
Description of symbols in figure：
1- indicators, 2- limit marks, 3- insulating parts, 4- handguards, 5- handles, 6- extensions 7- contact electrode, 8- paillons.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
As shown in Figs 1-4, the utility model increases a detection device before the electrode contacts of general high voltage electroscope,
To judge whether testee effectively contacts.The detection circuit of detection device includes current-limiting resistance, isolation optocoupler, light emitting diode
With a power module.When user touches electric wire using electroscope, the detection circuit of electroscope can first judge electroscope
Whether electric wire has really been touched, the LED light of electroscope detection circuit can light when electric wire is accessed, and illustrate at this time
Electroscope and line contacts are good, and then the rear end of electroscope can detect whether electric wire charges.
The operation principle of the utility model is as follows：
When two tops of the U-shaped ontology of electroscope and line contacts, the first electrode contact in detection circuit and the first electricity
It pole contact can be first by 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, final to make
Light emitting diode can be lit, and prove that electroscope and line contacts are intact at this time.
When detection device confirms that 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 is turned into certain angle.The size of angle is turned into according to two paillons can estimate the size of object carried charge.Then according to not
With the type of high voltage electroscope, there is different reminding methods, light emitting-type electroscope may be used, electroscope can shine when there is electricity
Come remind user's measured object charge, in addition commonly also have sound-light type and windmill-shaped high voltage electroscope.
Claims (9)
1. a kind of electroscope with contact detection whether there is operating voltage to detect on electrical equipment, 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 detection circuit in 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-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 current-limiting resistance and the photophore of 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 stretches 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 couplings.
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 hook or geometrical clamp with first electrode contact and second electrode contact portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083824.3U CN207924008U (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 |
|---|---|---|---|
| CN201820083824.3U CN207924008U (en) | 2018-01-18 | 2018-01-18 | A kind of electroscope with contact detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207924008U true CN207924008U (en) | 2018-09-28 |
Family
ID=63604698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820083824.3U Active CN207924008U (en) | 2018-01-18 | 2018-01-18 | A kind of electroscope with contact detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207924008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058072A (en) * | 2018-01-18 | 2019-07-26 | 元壤实业（上海）有限公司 | A kind of electroscope with contact detection |
-
2018
- 2018-01-18 CN CN201820083824.3U patent/CN207924008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058072A (en) * | 2018-01-18 | 2019-07-26 | 元壤实业（上海）有限公司 | A kind of electroscope with contact detection |
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