CN2274349Y

CN2274349Y - Multipurpose electrical penlike detector

Info

Publication number: CN2274349Y
Application number: CN 95237054
Authority: CN
Inventors: 肖维勋
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-22
Filing date: 1995-06-22
Publication date: 1998-02-11
Anticipated expiration: 2005-06-22

Abstract

The utility model provides a multipurpose electrical pen-like detector, which comprises a rising rod, a rising seat and a miniature button. The utility model has the advantages of small size, portability and simple operation. When testing whether one of multiple-core cable wires or long-distance transmission cable wires is broken, the utility model can replace a multi-meter and a rocking clock, and is very simple and convenient. The utility model can also detect whether an electrical appliance leaks electricity or not, whether insulating material is reliable or not, whether inner coil of a motor is broken or not, and the insulating condition of an outer shell. The multipurpose electrical pen-like detector is a multipurpose pen with multiple functions.

Description

The electrician's detecting pens of using more

The utility model relates to electrician's testing tool technical field, specifically a kind of test pencil with multiple function.

Because the inductive action of alternating current.The polycore cable that some is long, as long as there is single line to lead to the AC power of 220V, when we detect with common test pencil, can realize that those leads of not switching on can make the neon bulb of test pencil send certain brightness equally in same cable, and this brightness is directly proportional with the length of cable, also have electric hand drill, electric iron, small electric apparatus equipment such as electric fan, the neon bulb that may find pen sometimes has certain brightness, actually at this moment be to be difficult to the judgement broken string form due to the induced electricity, or the electric leakage that the winding insulation is lost or electrical equipment makes moist and causes.Above situation checks that it is that induced electricity also is non-induced electricity that the electrician is difficult to differentiate, also difficult differentiation cable broken string or other reason.When both having taken a lot of work when the electrician searches reason like this, delay production again, can bring very big loss to factory.

The purpose of this utility model is exactly every the straight-through principle of handing over according to capacitor, in common test pencil, add a diode, to be made into the half-wave Rectified alternating current by the sinusoidal ac of test pencil neon bulb, like this, it is that induced electricity also is non-induced electricity that test pencil can be distinguished soon.

The utility model is many to comprise screwdriver rod and Handleset with detecting pen.

Handleset comprises: shell, neon bulb, stage clip, resistance, diode, mini button.

The advantage of many electricity consumptions of the utility model formula detecting pen is: when detecting multi-core cable wire or detect the long transmission line of electricity of distance, it is not subjected to faradic the influence, whether can measure every cable very soon really opens circuit, in addition, it also can judge with electric tool whether leak electricity and the insulating property of tester's footwear and underfooting thing whether reliable, and the inner wire that detects motor just, volume is little, use is simple.

Below in conjunction with accompanying drawing embodiment is elaborated:

Accompanying drawing is many structural drawing with electrician's detecting pen.

With reference to the accompanying drawings: screwdriver rod 1 joins with shell 2, neon bulb 3 one ends link to each other with the end of screwdriver rod 1, and the end in addition of neon bulb 3 links to each other with stage clip 4 one ends, and stage clip 4 end in addition links to each other with 5 one of resistance, resistance 5 other ends link to each other with diode 6, and diode 6 links to each other with mini button 7.Mini button is produced by Wuhan City sky above Hubei and Hunan microswitch factory.

In the polycore cable more than two cores, single line is logical to power on as long as wherein have, on its adjacent heart yearn, although they are insulated from each other, but because the effect of alternating current impression electric field, there is induced voltage to exist in its adjacent heart yearn and make, the length of this faradic power and cable, thickness are directly proportional, and (Gu be equivalent to a capacitor for forming at the lead of two mutually insulateds around here, line is long more thick more thus, the two-plate that promptly is equivalent to capacitor is big more, it is big more just to be equivalent to condenser capacity, and on the contrary, capacity is big more, its capacitive reactance is more little, and is strong more in its electric conductivity of alternating circuit thus).Because of this phenomenon exists,, make triple-phase line in the cable interrupt one mutually or two thick because of various reasons so, usually run in the three phase supply at some used long towing cable electric equipments of our industrial enterprise.But at this moment since disconnected one have induced electricity to exist to disconnected two, so we adopt common test pencil, check that at its receiving end its two lines that break can make the neon bulb of test pencil luminous equally, because this phenomenon can make us think that three phase supply is normal by mistake.Give we judge and handling failure in make troubles and misread.According to the logical principle that exchanges of electric capacity stopping direct current, the test pencil of routine is added the transformation of the way, the one pen is used more.The situation of mentioning above detecting when the afterbody of detecting pen is press...withed one's finger down is not if work or moment bright once promptly go out (being directly proportional with the length of line to the transit time of going out from bright) being subjected to electrical measurement to get a certain.If record not disconnected a certain, the neon bulb of test pencil has an end luminous.Compress into if afterbody is not connect button, this test pencil can be worked as conventional test pencil and be used.

Claims

A kind of use electrician's detecting pen more, comprise screwdriver rod (1), shell (2), neon bulb (3), resistance (5), stage clip (4), mini button (7) is characterized in that (6) one of diodes link to each other with resistance (5), and the other end links to each other with mini button (7).