CN2711740Y - Multi-function electronic electricity test pen - Google Patents

Multi-function electronic electricity test pen Download PDF

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Publication number
CN2711740Y
CN2711740Y CN 200420064898 CN200420064898U CN2711740Y CN 2711740 Y CN2711740 Y CN 2711740Y CN 200420064898 CN200420064898 CN 200420064898 CN 200420064898 U CN200420064898 U CN 200420064898U CN 2711740 Y CN2711740 Y CN 2711740Y
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resistance
contact
integrated circuit
triode
test
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Expired - Fee Related
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CN 200420064898
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Chinese (zh)
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贺国顺
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Individual
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Individual
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Abstract

The utility model relates to a test pen. A multi-function electronic electricity test pen is characterized in that in an insulating casing 11, a test contact element 1 is electrically connected with the endpoint B of the circuit board 3; a test steel element 6 is electrically connected with the endpoint An of the circuit board 3, on which 3 an induction circuit for testing is provided; the induction circuit for testing is composed of a test function circuit and an induction function circuit, between which a switch 4 is provided. The switch 4 exchanges the test function circuit and the induction function circuit. When the induction function circuit acting on, it can induct whether the power socket, power line or other electric appliance is switched on the power supply or not, such as inducts whether electric wire imbed in wall or in PVC plastic pipe is switched on, and judges live conductor or inner conductor without stripping off the insulation layer.

Description

The multifunction electronic test pencil
Technical field
The utility model relates to a kind of test pencil.
Background technology
At present, known test pencil structure is to be in series by test contact, current-limiting resistance, neon tube, metal spring and hand touched electrode.Test contact (test steel part) is contacted with testee, the staff contact electrode, when measured object has higher voltage relative to the earth, the neon tube starter, the expression measured object is charged.But existing many charged thing current-carrying parts can not directly contact with test contact, as imbed the electric wire in the wall, and when you need avoid or find the electric wire position of imbedding wall, existing test pencil can not be accomplished.
Summary of the invention
The purpose of this utility model is to provide a kind of multifunction electronic test pencil with induction, test function.
To achieve these goals, the technical solution of the utility model is: the multifunction electronic test pencil, in the insulation crust 11, test is touched part 1 and is electrically connected with the terminal B of circuit board 3, test steel part 6 is electrically connected with the terminal A of circuit board 3, circuit board 3 is provided with test and sensor circuit, and test and sensor circuit are made of test function circuit and inducing function circuit, are provided with change-over switch 4 between test function circuit and the inducing function circuit; The test function circuit is mainly by resistance R 1, resistance R 2, triode T 1, triode T 2, green LED forms, input endpoint A connects test steel part 6, resistance R 1An end ground connection, another termination input endpoint A, resistance R 2A termination input endpoint A, the contact s of another end points and change-over switch 4 2Link to each other, make contact s by change-over switch 4 2With contact b 2Be connected triode T 1Base stage and the contact b of change-over switch 4 2Be connected triode T 1Collector be connected triode T with the anode of green LED 1Emitter and triode T 2Base stage be connected triode T 2Collector be connected with the negative electrode of green LED, the anode of green LED is through contact b 1Make contact b by change-over switch 4 1With contact s 1Be connected contact s 1And terminal B is connected with positive source; Circuit theory is; When the terminal A inspected object is positively charged, triode T 1The base stage induced potential constantly raise, thereby make triode T 2Conducting, green LED is luminous.
The inducing function circuit is made up of induced signal amplification and rectification circuit, inducing function flicker driving circuit and inducing function chimes of doom driving circuit.The induced signal amplification and rectification circuit is by resistance R 1, resistance R 2, resistance R 3, resistance R 4, integrated circuit block IC 1, integrated circuit block IC 2, capacitor C 1, diode D 1Form the contact s of change-over switch 4 2With contact a 2Be connected integrated circuit block IC 1, integrated circuit block IC 2, resistance R 3, diode D 1, capacitor C 1Be in series resistance R 4With resistance R 3With diode D 1Be in parallel capacitor C 1The other end link to each other with ground, by integrated circuit block IC 1, integrated circuit block IC 2Form signal amplification circuit, diode D 1, capacitor C 1Form signal transformation circuit; Inducing function flicker driving circuit is by diode D 2, resistance R 5, resistance R 6, capacitor C 2, integrated circuit block IC 3, integrated circuit block IC 4Form oscillator and triode T 3Go to drive and make red light emitting diodes glimmer diode D 2Negative electrode and diode D 1Negative electrode be connected diode D 2Anode, integrated circuit block IC 3, integrated circuit block IC 4, resistance R 7, triode T 3Base stage, triode T 3Collector, resistance R 8, the negative electrode of red light emitting diodes, contact a 1Be in series resistance R 5An end and diode D 2Anode be connected resistance R 5The other end and resistance R 6Capacitor C 2Be connected resistance R 6With integrated circuit block IC 3And resistance R 5Parallel connection, capacitor C 2With integrated circuit block IC 4And resistance R 6Parallel connection, triode T 3Grounded emitter, contact a 1Make contact a by change-over switch 4 1With contact s 1Be connected contact a 1Contact s by change-over switch 4 1Be connected with positive source;
Inducing function chimes of doom driving circuit is by diode D 3, resistance R 9, resistance R 10, resistance R 11, capacitor C 3, integrated circuit block IC 5, integrated circuit block IC 6Form another oscillator and triode T 4Remove to drive hummer 10 sounding; Diode D 3Negative electrode and integrated circuit block IC 4And resistance R 7Capacitor C 2Be connected diode D 3Anode, integrated circuit block IC 5, integrated circuit block IC 6, resistance R 11, triode T 4Base stage, triode T 4Collector, hummer 10, contact a 1Be in series contact a 1Make contact a by change-over switch 4 1With contact s 1Be connected contact a 1Contact s by change-over switch 4 1Be connected with positive source; Resistance R 9An end and diode D 3Anode be connected resistance R 9The other end and resistance R 10, capacitor C 3Be connected resistance R 10With integrated circuit block IC 6, resistance R 9Parallel connection, capacitor C 3With integrated circuit block IC 6, resistance R 10Parallel connection, triode T 4Grounded emitter, resistance R 12An end and contact a 1Link to each other other end ground connection.
The utility model adopts in the insulation crust 11, part 1, circuit board 3,6 electrical connections of test steel part are touched in test, circuit board 3 is provided with the test sensor circuit, the test sensor circuit is made of test function circuit and inducing function circuit, is realized the switching of test function circuit and inducing function circuit by change-over switch 4.When switching to test function, can directly test the phase line and the zero line of AC power, and can judge the break-make of devices such as lead, filament, switch, telefault, interface unit, plug connector, miniature transformer, also can measure the unilateral conduction of crystal diode and triode and measure the following capacitor of 1 microfarad.When switching to the inducing function circuit, can under the noncontact situation, induce supply socket, whether power lead and other electrical equipment are connected with power supply etc., whether switch on as the electric wire that induction is embedded within the walls or is through in the PVC plastic tube, and can under the situation of not stripping of insulatin layer, judge that lead is live wire or zero line.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model board circuit schematic diagram
Fig. 3 is an integrated circuit block structural representation of the present utility model
Among the figure: part, 2-cap, 3-circuit board, 4-change-over switch, 5-luminescent device, 6-test steel part, the 7-pen cap, 8-7# battery, 9-button, 10-hummer, 11-insulation crust are touched in the 1-test.
Embodiment
As shown in Figure 1 and Figure 2, the multifunction electronic test pencil, in the insulation crust 11, test is touched part 1 and is electrically connected with the terminal B of circuit board 3, test steel part 6 is electrically connected with the terminal A of circuit board 3, circuit board 3 is provided with test and sensor circuit, and test and sensor circuit are made of test function circuit and inducing function circuit, are provided with change-over switch 4 between test function circuit and the inducing function circuit; The test function circuit is mainly by resistance R 1, resistance R 2, triode T 1, triode T 2, green LED forms, input endpoint A connects test steel part 6, resistance R 1An end ground connection, another termination input endpoint A, resistance R 2A termination input endpoint A, the contact s of another end points and change-over switch 4 2Link to each other, make contact s by change-over switch 4 2With contact b 2Be connected triode T 1Base stage and the contact b of change-over switch 4 2Be connected triode T 1Collector be connected triode T with the anode of green LED 1Emitter and triode T 2Base stage be connected triode T 2Collector be connected with the negative electrode of green LED, the anode of green LED is through contact b 1Make contact b by change-over switch 4 1With contact s 1Be connected contact s 1And terminal B is connected with positive source; Circuit theory is: when the terminal A inspected object is positively charged, and triode T 1The base stage induced potential constantly raise, thereby make triode T 2Conducting, green LED is luminous.
The inducing function circuit is made up of induced signal amplification and rectification circuit, inducing function flicker driving circuit and inducing function chimes of doom driving circuit.The induced signal amplification and rectification circuit is by resistance R 1, resistance R 2, resistance R 3, resistance R 4, integrated circuit block IC 1, integrated circuit block IC 2, capacitor C 1, diode D 1Form the contact s of change-over switch 4 2With contact a 2Be connected integrated circuit block IC 1, integrated circuit block IC 2, resistance R 3, diode D 1, capacitor C 1Be in series resistance R 4With resistance R 3With diode D 1Be in parallel capacitor C 1The other end link to each other with ground, by integrated circuit block IC 1, integrated circuit block IC 2Form signal amplification circuit, diode D 1, capacitor C 1Form signal transformation circuit; Inducing function flicker driving circuit is by diode D 2, resistance R 5, resistance R 6, capacitor C 2, integrated circuit block IC 3, integrated circuit block IC 4Form oscillator and triode T 3Go to drive and make red light emitting diodes glimmer diode D 2Negative electrode and diode D 1Negative electrode be connected diode D 2Anode, integrated circuit block IC 3, integrated circuit block IC 4, resistance R 7, triode T 3Base stage, triode T 3Collector, resistance R 8, the negative electrode of red light emitting diodes, contact a 1Be in series resistance R 5An end and diode D 2Anode be connected resistance R 5The other end and resistance R 6Capacitor C 2Be connected resistance R 6With integrated circuit block IC 3And resistance R 5Parallel connection, capacitor C 2With integrated circuit block IC 4And resistance R 6Parallel connection, triode T 3Grounded emitter, contact a 1Make contact a by change-over switch 4 1With contact s 1Be connected contact a 1Contact s by change-over switch 4 1Be connected with positive source;
Inducing function chimes of doom driving circuit is by diode D 3, resistance R 9, resistance R 10, resistance R 11, capacitor C 3, integrated circuit block IC 5, integrated circuit block IC 6Form another oscillator and triode T 4Remove to drive hummer 10 sounding; Diode D 3Negative electrode and integrated circuit block IC 4And resistance R 7Capacitor C 2Be connected diode D 3Anode, integrated circuit block IC 5, integrated circuit block IC 6, resistance R 11, triode T 4Base stage, triode T 4Collector, hummer 10, contact a 1Be in series contact a 1Make contact a by change-over switch 4 1With contact s 1Be connected contact a 1Contact s by change-over switch 4 1Be connected with positive source; Resistance R 9An end and diode D 3Anode be connected resistance R 9The other end and resistance R 10, capacitor C 3Be connected resistance R 10With integrated circuit block IC 5, resistance R 9Parallel connection, capacitor C 3With integrated circuit block IC 6, resistance R 10Parallel connection, triode T 4Grounded emitter, resistance R 12An end and contact a 1Link to each other other end ground connection.
Be provided with battery cavities in the insulation crust 11,2 joint 7# batteries 8 lay respectively in the battery cavities, for test and sensor circuit provide power supply.
Be provided with change-over switch 4 in the insulation crust 11, be with button 9 on the change-over switch 4.Be provided with luminescent device 5 in the insulation crust 11, luminescent device 5 is the red and green color light emitting diode.Be provided with hummer 10 in the insulation crust 11.The test of insulation crust 11 is touched part 1 place and is with cap 2, and test steel part 6 places of insulation crust 11 are with the pen cap 7.
The utlity model has following function:
One, electronic induction function: button does not press down, and at this moment, change-over switch 4 makes contact S 1With contact a 1Link to each other contact S 2With contact a 2Link to each other, constitute the electronic induction functional circuit.
(be that common status button does not press down, an available hand engaged test steel part, the another hand, finger touches test and touches part, no green glow is bright, is sense state).
When sense state is tested, do not need hand touch the test touch part, need not dial the pen cap yet, when nib near electrified body, the pen in will send the chimes of doom and the ruddiness that glimmers.
Adopting said method can induce supply socket under the noncontact situation, whether power lead and other electrical equipment are connected with power supply etc.Whether switch on as the electric wire that induction is embedded within the walls or is through in the PVC plastic tube, and can under the situation of not stripping of insulatin layer, judge that lead is live wire or zero line.If in the circuit gap (referring to live wire) is arranged, suitable line moves on the one section circuit that does not have electricity does not then have alert chimes of doom and red flare, can find out the trouble spot of concealed wire, within the walls investigation depth 1-7cm.Also can look into usefulness such as stealing in addition, also can find and be embedded in the break-make of telephone wire within the walls.When you during near the equipment of high pressure line or belt high-tension electricity or device, this test pencil can send chimes of doom automatically and flicker ruddiness is reminded your high-tension electricity danger, thereby prevent effectively owing to the electric shock injures and deaths that cause of error, weather distance of reaction in humidity can be farther, and high-tension electricity induction distance can reach 0.5 meter-10 meters.
The utility model can be made warning type auxiliary security apparatus, must the strict regulation of carrying out relevant electrical verification in " electrical safe working order " during use.
Two, test function: press the button 9, at this moment, the contact S of change-over switch 4 1With contact b 1Link to each other the contact S of change-over switch 4 2With contact b 2Link to each other, constitute the test function circuit.
(press the button switch, with a hand engaged test steel part 6, another hand touching test touches part 1, the test pen green light is test mode, and the method can also check whether power consumption is arranged the battery in the pen whether whether abundance or inside have fault, common test pencil does not then have self-checking function, when neon tube damages, cause erroneous judgement disconnected, thereby easily cause the generation of electric shock accidents.)
1, the test of power supply phase line (being commonly called as live wire)
Dial and to remove the pen cap 7, touch the phase line and the zero line of tested wire with the test steel part 6 of nib, send green glow as if test pen, this line is a phase line, and non-luminous lead then is a zero line.36V≤measuring voltage＜500V, if luminous explanation circuit zero line breaks all, if the not luminous circuit that then illustrates is not switched on.The metallic test that touches the cap inboard with hand when you touches part and tests AC power, and inducing function is also arranged this moment.
Attention: the metallic test that does not need to touch the cap inboard with hand during supply voltage 〉=36V touches part.(when touching part because of touch test with hand, two lines are all luminous, but strong, weak branch is arranged) to avoid erroneous judgement.
2, on off test (non-live testing places test mode with switching push button)
One hold test pen and the cap for brush lid of press...withing one's finger in metallic test touch part, end with test steel part contact testee, another holds the other end of measured body, if test pen green light, then represent testee conducting (or conduction) if no green glow then illustrates testee open circuit (or insulation).Use this function and can tentatively judge the break-make of bulb, tube filament, also can measure the break-make of devices such as all kinds of leads, switch, telefault, connector, plug connector, miniature transformer.
3, (measurement of diode, triode, non-live testing places test mode with switching push button in the measurement of PN junction.)
The method that holds a pen is the same, an end that holds diode, test steel part with test pen, the other end of contact diode, diode reverse is surveyed once again, if twice all luminous explanation diode short circuit, twice not luminous explanation diode opened a way, being diode damages, if once luminous, once not luminous then diode is normal, and that end of holding luminous that time is that end of anode (being the P utmost point) the test steel part contact of diode then is the negative electrode of diode (being the N utmost point), in like manner can differentiate transistor is NPN type or positive-negative-positive, and can its quality of simple and easy judgement.
4, the measurement of low value capacitor
Measurement for the capacitor of capacity below 1uF, can be according to the length estimation capacity levels of the time of discharging and recharging, can also judge its whether short circuit, the open circuit, the electric leakage (digital, pointer multimeter is all not too convenient for the capacitance measurement of this scope, maybe can only survey capacity, can not survey electric leakage, or measured and whether leak electricity, can not surveying amount of capacity again, then more can't measure for PF level capacitor pointer multimeter.)
Its method of testing is identical with the above-mentioned method that holds a pen, with an end extension line that holds capacitor, draw line end with another of test steel part contacting capacitor, green LED can go out to holography from bright, the illustrated capacitor leakproof is normal substantially, can estimate the size that condenser capacity from bright to the time length that breath goes out, but out of true, if can not cease the then illustrated capacitor electric leakage of going out after luminotron is bright fully, if the normal bright then illustrated capacitor internal short-circuit of luminotron, if open a way in not luminous then illustrated capacitor inside, thereby judge the quality of measured capacitance device.
Three, instrumental function
This test pencil test steel part adopts the high-quality steel to be made, and it will be again a long-lived little bottle opener.

Claims (4)

1. multifunction electronic test pencil, it is characterized in that: in the insulation crust (11), test is touched part (1) and is electrically connected with the end points (B) of circuit board (3), test steel part (6) is electrically connected with the end points (A) of circuit board (3), circuit board (3) is provided with test and sensor circuit, test and sensor circuit are made of test function circuit and inducing function circuit, are provided with change-over switch (4) between test function circuit and the inducing function circuit; The test function circuit is mainly by resistance (R 1), resistance (R 2), triode (T 1), triode (T 2), green LED forms, input endpoint (A) meets test steel part (6), resistance (R 1) an end ground connection, another termination input endpoint (A), resistance (R 2) a termination input endpoint (A), the contact (s of another end points and change-over switch (4) 2) link to each other, make contact (s by change-over switch (4) 2) and contact (b 2) be connected triode (T 1) base stage and the contact (b of change-over switch (4) 2) be connected triode (T 1) collector be connected triode (T with the anode of green LED 1) emitter and triode (T 2) base stage be connected triode (T 2) collector be connected with the negative electrode of green LED, the anode of green LED is through contact (b 1) make contact (b by change-over switch (4) 1) and contact (s 1) be connected contact (s 1) and end points (B) be connected with positive source;
The inducing function circuit is made up of induced signal amplification and rectification circuit, inducing function flicker driving circuit and inducing function chimes of doom driving circuit, and the induced signal amplification and rectification circuit is by resistance (R 1), resistance (R 2), resistance (R 3), resistance (R 4), integrated circuit block (IC 1), integrated circuit block (IC 2), electric capacity (C 1), diode (D 1) form the contact (s of change-over switch (4) 2) and contact (a 2) be connected integrated circuit block (IC 1), integrated circuit block (IC 2), resistance (R 3), diode (D 1), electric capacity (C 1) be in series resistance (R 4) and resistance (R 3) and diode (D 1) be in parallel electric capacity (C 1) the other end link to each other with ground, by integrated circuit block (IC 1), integrated circuit block (IC 2) the composition signal amplification circuit, diode (D 1), electric capacity (C 1) the composition signal transformation circuit; Inducing function flicker driving circuit is by diode (D 2), resistance (R 5), resistance (R 6), electric capacity (C 2), integrated circuit block (IC 3), integrated circuit block (IC 4) composition oscillator and triode (T 3) go driving to make red light emitting diodes flicker, diode (D 2) negative electrode and diode (D 1) negative electrode be connected diode (D 2) anode, integrated circuit block (IC 3), integrated circuit block (IC 4), resistance (R 7), triode (T 3) base stage, triode (T 3) collector, resistance (R 8), the negative electrode of red light emitting diodes, contact (a 1) be in series resistance (R 5) an end and diode (D 2) anode be connected resistance (R 5) the other end and resistance (R 6) electric capacity (C 2) be connected resistance (R 6) and integrated circuit block (IC 3) and resistance (R 5) parallel connection, electric capacity (C 2) and integrated circuit block (IC 4) and resistance (R 6) parallel connection, triode (T 3) grounded emitter, contact (a 1) make contact (a by change-over switch (4) 1) and contact (s 1) be connected contact (a 1) contact (s by change-over switch (4) 1) be connected with positive source.
2. multifunction electronic test pencil according to claim 1 is characterized in that: inducing function chimes of doom driving circuit is by diode (D 3), resistance (R 9), resistance (R 10), resistance (R 11), electric capacity (C 3), integrated circuit block (IC 5), integrated circuit block (IC 6) form another oscillator and triode (T 4) remove to drive hummer (10) sounding; Diode (D 3) negative electrode and integrated circuit block (IC 4) and resistance (R 7) electric capacity (C 2) be connected diode (D 3) anode, integrated circuit block (IC 5), integrated circuit block (IC 6), resistance (R 11), triode (T 4) base stage, triode (T 4) collector, hummer (10), contact (a 1) be in series contact (a 1) make contact (a by change-over switch (4) 1) and contact (s 1) be connected contact (a 1) contact (s by change-over switch (4) 1) be connected with positive source; Resistance (R 9) an end and diode (D 3) anode be connected resistance (R 9) the other end and resistance (R 10), electric capacity (C 3) be connected resistance (R 10) and integrated circuit block (IC 5), resistance (R 9) parallel connection, electric capacity (C 3) and integrated circuit block (IC 6), resistance (R 10) parallel connection, triode (T 4) grounded emitter.
3. multifunction electronic test pencil according to claim 1 is characterized in that: insulation crust is provided with battery cavities in (11), and 2 No. 7 batteries of joint (8) lay respectively in the battery cavities.
4. multifunction electronic test pencil according to claim 1 is characterized in that: be provided with change-over switch (4) in the insulation crust (11), be with button (9) on the change-over switch (4).
CN 200420064898 2004-06-10 2004-06-10 Multi-function electronic electricity test pen Expired - Fee Related CN2711740Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420064898 CN2711740Y (en) 2004-06-10 2004-06-10 Multi-function electronic electricity test pen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420064898 CN2711740Y (en) 2004-06-10 2004-06-10 Multi-function electronic electricity test pen

Publications (1)

Publication Number Publication Date
CN2711740Y true CN2711740Y (en) 2005-07-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420064898 Expired - Fee Related CN2711740Y (en) 2004-06-10 2004-06-10 Multi-function electronic electricity test pen

Country Status (1)

Country Link
CN (1) CN2711740Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102882561A (en) * 2012-07-24 2013-01-16 西安电子科技大学 Non-contact data transmission device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102882561A (en) * 2012-07-24 2013-01-16 西安电子科技大学 Non-contact data transmission device
CN102882561B (en) * 2012-07-24 2014-10-22 西安电子科技大学 Non-contact data transmission device

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050720