CN102095913A - Multi-functional portable auxiliary maintenance/detection pen for electrical appliances - Google Patents
Multi-functional portable auxiliary maintenance/detection pen for electrical appliances Download PDFInfo
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- CN102095913A CN102095913A CN2010105502453A CN201010550245A CN102095913A CN 102095913 A CN102095913 A CN 102095913A CN 2010105502453 A CN2010105502453 A CN 2010105502453A CN 201010550245 A CN201010550245 A CN 201010550245A CN 102095913 A CN102095913 A CN 102095913A
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- test pencil
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Abstract
The invention relates to an auxiliary maintenance tool for electrical appliances, in particular to a multi-functional portable auxiliary maintenance/detection pen for electrical appliances, which belongs to portable multi-functional maintenance/detection lines for electrical appliances. The detection pen is characterized by comprising light emitting diode (LED) elements and button switches. Function buttons K1-K4, LEDs D1-D4 and a buzzer sound production hole are arranged on a function box shell. Through a detection meter pen A and a detection meter pen B, detected voltage signals are processed by a buck circuit formed by resistors R1 and R2 to generate low-voltage signals; and after passing through the input terminal of an operational amplifier IC1, the low-voltage signals are compared and treated by the operational amplifier IC1, and are output to drive the LEDs D1-D4 or drive the buzzers to sound. By using the invention, potential safety hazards in maintenance work can be effectively eliminated through the self-supported LED illumination function of the detection line meter pen, and the direct communication function formed between the meter pens can increase work efficiency for the maintenance work for the electrical appliances.
Description
Technical field
The present invention relates to the auxiliary service kit of a kind of electrical equipment, specifically is the auxiliary maintenance/detecting pen of a kind of portable multifunctional electrical equipment, belongs to appliance maintenance and detects apparatus.
Background technology
In the present electric service work, main testing tool is a multimeter.In actual service work, multimeter is mainly used in the inspection device, the voltage of electric loop, electric current, and resistance, process multimeter trial inspection is being thought the quick judgement of fault loop, in the process of the test, multimeter just seems that some is unable to do what one wishes, pair of wire connection terminals malcompression particularly, the loose contact that the different hybrid junctions of diameter of wire etc. cause, auxiliary reclay, ac contactor coil, aspects such as the online quick judgement of pilot lamp, multimeter belongs to the precision instrument, in maintenance process, often need skip the part control loop and carry out the monomer action of electric device, state is tested and is powered, then need to test connection by lead with certain current-carrying capacity, confirm the quality of its electrical equipment,, very easily cause the damage of table tool if use multimeter directly to test connection, measuring accuracy descends.
Summary of the invention
Purpose of the present invention is overcoming the shortcoming of prior art, invents a kind of by detecting test pencil A (1) and detecting the auxiliary maintenance/detecting pen of (2) two portable multifunctional electrical equipment of forming of test pencil B.The termination of this maintenance/detecting pen carries the LED illumination, the break-make of finishing maintenance/detecting pen detects sounding prompting, four sections voltage LED simulation demonstrations and overhauls and detect straight-through function between the test pencil, satisfies in the electrical maintenance process and rapidly and efficiently finds/find the fail operation needs.
The structure of the auxiliary maintenance/detecting pen of portable multifunctional electrical equipment of the present invention is: the auxiliary maintenance/detecting pen of electrical equipment is connected by lead (18) with detection test pencil B (2) by detection test pencil A (1) and forms, check that test pencil A (1) and overcurrent fuse (3) are connected in series, sidepiece is equipped with light emitting diode D5 in detection test pencil A (1) termination, detects on test pencil A (1) shell K switch 1～K4 (4,5,6 and 7), hummer (15) and four light emitting diode D1, D2, D3 and D4 (12) are housed; Detect test pencil B (2) termination sidepiece light emitting diode D6 also is housed, detect on test pencil B (2) shell K switch 6 (9) is housed;
Detect among the test pencil A (1) maintenance/testing circuit plate is housed, comprise in the maintenance/testing circuit plate that four sections voltage LED simulation display circuits, break-makes detect the sounding cue circuit, detect the straight-through functional circuit of test pencil and detect test pencil illumination functions circuit.
Described four sections voltage LED simulation display circuit is by detecting test pencil A (1), detect test pencil B (2), function button 7 (K4), operational amplifier IC1 (11), three ends are adjustable shunting reference source IC2 (17), bridge rectifier (10), resistance R 2, R3, R4, R5, R6, R7, R8, R9, R10, the resistance R 18 of R11, LED light emitting diode D1, D2, D3 forms, voltage to be measured is by checking test pencil A (1), detect test pencil B (2), overcurrent fuse (3) is delivered to bridge rectifier (10), obtains DC voltage after the rectification, passes through bridge rectifier (10) and resistance R 2 then, 200: 1 the bleeder circuit dividing potential drop that R3 forms, obtaining can be for the voltage that detects, deliver to the in-phase input end of 4 operational amplifiers of operational amplifier IC1 (11) then, 4 operational amplifiers of operational amplifier IC1 (11) are connected into voltage comparator, and three ends are adjustable shunting reference source IC2 (17) and resistance R 18 are formed the reference voltage circuit of 2.5V, provide the burning voltage of 2.5V, through resistance R 4, R5; R6, R7; R8, R9; R10, after the R11 dividing potential drop, obtain four groups of reference voltage 0.1V, 0.5V, 1V, 1.8V each self-corresponding measured value is 20V, 100V, 200V, 360V delivers to 4 voltage comparator (IC1a with four groups of reference voltages respectively, IC1b, IC1c and IC1d) inverting input, when the voltage to be measured after the dividing potential drop during greater than the voltage of inverting input, voltage comparator (IC1a, IC1b, IC1c and IC1d) the output high level, by R12, R13, R14, light corresponding four LED light emitting diode D1 after the R15 current limliting, D2, D3 and D4 (12) finish four sections voltage LED simulation Presentation Functions.
Described break-make detects the sounding cue circuit and is made up of K switch 2 (5), K switch 3 (6), hummer (15), power supply (16), detection test pencil A (1) and detection test pencil B (2), hummer (15), power supply, detection test pencil A (1), detect test pencil B (2) series connection connection connection between switch (5) and the switch (6) with it, series circuit of common composition, press function button K switch 2 (5) and K switch 3 (6) simultaneously, when circuit under test during＜1000 ohm of resistances, hummer (15) sends the sound that pipes and points out, and represents that this loop is a connected state; Otherwise, be off-state, finish break-make and detect the sounding prompting.
The straight-through functional circuit of described detection test pencil is made up of K switch 1 (4), detection test pencil A (1) and detection test pencil B (2), K switch 1 (4) one termination detects test pencil A (1), another termination detects test pencil B (2), press function button K switch 1 (4), detect test pencil A (1) and detect between the test pencil B (2) and be in the short circuit state, form and detect test pencil A (1) and detect direct UNICOM between the test pencil B (2), finish straight-through or lead turn-on power loss.
Described detection test pencil illumination functions electric routing switch K5 (8), K switch 6 (9), light emitting diode D5 (13) and resistance R 16, R17 form, press the K switch 5 (8) that detects among the test pencil A (1), after resistance R 16 current limlitings, the light emitting diode D5 (13) that detects the installation of test pencil A (1) front end is luminous, and illumination is provided; Press the K switch 6 (9) that detects among the test pencil B (2), after resistance R 17 current limlitings, the light emitting diode D6 (14) that detects the installation of test pencil B (2) front end is luminous, and illumination functions is provided.
Principle of work is: four sections voltage LED simulation Presentation Functions, detection test pencil A (1), detection test pencil B (2) are connected respectively to (direct current is regardless of both positive and negative polarity) on the examine power supply, press function button 7 (K4) button, operational amplifier IC1 (11) and operational amplifier energising work.Voltage to be measured is by checking test pencil A (1), detect test pencil B (2), overcurrent fuse (3) is delivered to bridge rectifier (10), obtain DC voltage after the rectification, pass through (10) resistance R 2 then, 200: 1 the bleeder circuit dividing potential drop that R3 forms, obtaining can be for the voltage that detects, deliver to the in-phase input end of 4 operational amplifiers of operational amplifier IC1 (11) then, 4 operational amplifiers of IC1 (11) are connected into voltage comparator, three ends are adjustable, and shunting reference source IC2 (17) and resistance R 18 are formed the reference voltage circuit of 2.5V, provide the burning voltage of 2.5V, through resistance R 4, R5; R6, R7; R8, R9; Obtain four groups of reference voltage (0.1V after R10, the R11 dividing potential drop, 0.5V, 1V, 1.8V, corresponding measured value is 20V, 100V, 200V, 360V), deliver to the inverting input of 4 voltage comparators (IC1a, IC1b, IC1c and IC1d) respectively, when the voltage to be measured after the dividing potential drop during greater than the voltage of inverting input, voltage comparator (IC1a, IC1b, IC1c and IC1d) output high level passes through R12, R13, R14 lights corresponding four LED light emitting diode D1, D2, D3 and D4 (12) after the R15 current limliting, finish the detection deixis of aanalogvoltage.
Break-make detects the sounding prompting: press K switch 2 (5) and switch k3 (6) button simultaneously, hummer (15), power supply, detection test pencil A (1), detect test pencil B (2) series circuit of common formation between switch (5) and the switch (6) with it, when circuit under test during＜1000 ohm of resistances, hummer (15) sends the sound that pipes and points out, represent that this loop is a connected state, otherwise, be off-state.
Detect when test pencil uses and lead directly to function: press function button K switch 1 (4), detect test pencil A (1) and detect test pencil B (2) and be in the short circuit state, make it to form to detect test pencil A (1) and detect between the test pencil B (2) and lead directly to, realize straight-through function, can be used as lead and use.
Illumination functions when detecting test pencil and using: press K switch 5 (8), during K switch 6 (9), light emitting diode (13) D5, light emitting diode D6 (14) is by resistance R 16, and the R17 current limliting is luminous, is to detect test pencil A (1), detects test pencil B (2) illumination is provided.
The LED illumination that the auxiliary maintenance/detecting pen of portable multifunctional electrical equipment of the present invention can effectively carry by the detection test pencil is the potential safety hazard in the elimination service work, detect the straight-through function that forms between the test pencil, for the user has improved work efficiency in appliance maintenance/maintenance, it has easy to use, safety, can find/find the advantage of trouble spot fast and efficiently, be the aid of the various electric equipments of maintenance/maintenance.
Description of drawings
Below in conjunction with the accompanying drawing illustrated embodiment structure is described further, but protection domain of the present invention is not limited thereto embodiment.
The circuit theory diagrams of the auxiliary maintenance/detecting pen of Fig. 1 portable multifunctional electrical equipment of the present invention.
The circuit diagram of the auxiliary maintenance/detecting pen of Fig. 2 portable multifunctional electrical equipment of the present invention.
The structural representation of the auxiliary maintenance/detecting pen of Fig. 3 portable multifunctional electrical equipment of the present invention.
Detect the contour structures synoptic diagram of test pencil A among Fig. 4 the present invention.
Fig. 5 is the right view of detection test pencil A shown in Figure 4.
Detect the contour structures synoptic diagram of test pencil B among Fig. 6 the present invention.
Fig. 7 is the right view of detection test pencil B shown in Figure 6.
Among the figure: 1-detects test pencil A; 2-detects test pencil B; The 3-overcurrent fuse; 4-K switch 1; 5-K switch 2; 6-K switch 3; 7-K switch 4; 8-K switch 5; 9-K switch 6; The 0-bridge rectifier; 11-operational amplifier IC1; 12-four light emitting diode D1, D2, D3 and D4; 13-light emitting diode D5; 14-light emitting diode D6; The 15-hummer; 16-3.6V direct power supply; 17-three ends are adjustable shunting reference source IC2; The 18-lead.
Embodiment
Inspect test pencil A1 and have the LED illumination functions with the front end of inspecting test pencil B2, detect test pencil B2 front end White LED light emitting diode 14 is installed, the front end of inspecting test pencil A1 is equipped with White LED light emitting diode 13, when detecting the maintenance dark, press the button of checking functions K switch 14, two LED light emitting diode 13,14 luminous lighting are for the tester provides illumination.
Break-make detects the sounding prompt facility: press K switch 2 buttons, hummer 15 sends the sound of ringing, and illustrates that the detected conductor of inspecting test pencil A1 and inspecting between the test pencil B2 is a connected state; Hummer 15 is sounding not, illustrates that the detected conductor of inspecting test pencil A1 and inspecting between the test pencil B2 is an off-state.The break-make that realizes detected conductor detects.
Between the test pencil by the button connectivity capabilities: have in this detection line by two detecting pens by pressing the K4 button, cause to form the straight circuit function between two test pencils, realize that the outer lead band carries function.
Four sections voltage LED Presentation Functions: detection test pencil A1, detection test pencil B2 are connected respectively to (direct current is regardless of both positive and negative polarity) on the examine power supply, press function button K switch 4 buttons, operational amplifier IC1 and operational amplifier energising work.Three ends are adjustable, and shunting reference source IC2 and resistance R 18 are formed the reference voltage circuit of 2.5V, provide the burning voltage of 2.5V, through resistance R 4, R5; R6, R7; R8, R9; R10, obtain four groups of reference voltage 0.1V after the R11 dividing potential drop, 0.5V, 1V, 1.8V, corresponding measured value is 20V, 100V, 200V, 360, deliver to 4 voltage comparator ic 1a respectively, IC1b, the inverting input of IC1c and IC1d, when the voltage to be measured after the dividing potential drop during greater than the voltage of inverting input, voltage comparator ic 1a, IC1b, IC1c and IC1d output high level, respectively by R12, R13, R14, after the R15 current limliting, respectively by Fig. 2 circuit with shown in Figure 3ly light corresponding four LED light emitting diode D1 separately, D2, D3 and D4, corresponding output voltage are 6V-12V, 15V-36V, 60V-250V, 250V-450V voltage, promptly demonstrate a LED light emitting diode 12 on detection test pencil A1 shell and light, the voltage that the expression side gets is 12V; Two LED light emitting diodes 12 are lighted simultaneously, and the voltage that the expression side gets is 36V; Three LED light emitting diode 12 is lighted simultaneously, and the voltage that the expression side gets is 220V, and four LED light emitting diodes 12 are all lighted, and the voltage that the expression side gets is 380V.
During use, when quilt maintenance/detection means, when loop process Preliminary detection is judged as and opens circuit, can be by pressing K switch 2 knobs of the present invention by lower label 5, the trip point that connects logical tested device, loop, substitute former return wire, carry out online charged connection, make failure to trip point form the closed-loop path, thereby check the action situation in device, loop, and then the particular location of failure judgement point, device, loop state.
During use, when maintenance/detection means under electriferous state, but function is unrealized under the state of (control program off-duty), as pilot lamp, detect the quality of test pilot lamp, except that using multimeter to detect resistance or the forward reverse resistance (LED light), the simplest method just is to use function portable electronics of the present invention to assist maintenance/detecting pen, show by the operating voltage of maintenance/detection means, light, extinguish state according to it and judge its quality, carry out quick wire jumper searching work, can reach the effect that it gets twice the result with half the effort.
The present invention can show electricity, make-and-break voltage situation in the 12V-450V scope, and indicates in real time by the LED light emitting diode, can carry out fast detecting and judgement to the trouble hunting point.
Operational amplifier IC1 of the present invention selects the LM324 model for use; Three ends are adjustable, and shunting reference source IC2 selects the TL431 model for use.
Claims (5)
1. a portable multifunctional electrical equipment is assisted maintenance/detecting pen, it is characterized in that the auxiliary maintenance/detecting pen of electrical equipment connects by lead (18) with detection test pencil B (2) and forms by detecting test pencil A (1), check that test pencil A (1) and overcurrent fuse (3) are connected in series, sidepiece is equipped with light emitting diode D5 in detection test pencil A (1) termination, detects on test pencil A (1) shell K switch 1～K4 (4,5,6 and 7), hummer (15) and four light emitting diode D1, D2, D3 and D4 (12) are housed; Detect test pencil B (2) termination sidepiece light emitting diode D6 also is housed, detect on test pencil B (2) shell K switch 6 (9) is housed;
Detect among the test pencil A (1) maintenance/testing circuit plate is housed, comprise in the maintenance/testing circuit plate that four sections voltage LED simulation display circuits, break-makes detect the sounding cue circuit, detect the straight-through functional circuit of test pencil and detect test pencil illumination functions circuit.
2. portable multifunctional electrical equipment according to claim 1 is assisted maintenance/detecting pen, it is characterized in that described four sections voltage LED simulation display circuit is by detecting test pencil A (1), detect test pencil B (2), function button switch 7 (K4), operational amplifier IC1 (11), three ends are adjustable shunting reference source IC2 (17), bridge rectifier (10), resistance R 2, R3, R4, R5, R6, R7, R8, R9, R10, the resistance R 18 of R11, LED light emitting diode D1, D2, D3 forms, voltage to be measured is by checking test pencil A (1), detect test pencil B (2), overcurrent fuse (3) is delivered to bridge rectifier (10), obtain DC voltage after the rectification, pass through bridge rectifier (10) and resistance R 2 then, 200: 1 the bleeder circuit dividing potential drop that R3 forms, obtaining can be for the voltage that detects, deliver to the in-phase input end of 4 operational amplifiers of operational amplifier IC1 (11) then, 4 operational amplifiers of operational amplifier IC1 (11) are connected into voltage comparator, three ends are adjustable, and shunting reference source IC2 (17) and resistance R 18 are formed the reference voltage circuit of 2.5V, provide the burning voltage of 2.5V, through resistance R 4, R5; R6, R7; R8, R9; R10, after the R11 dividing potential drop, obtain four groups of reference voltage 0.1V, 0.5V, 1V, 1.8V each self-corresponding measured value is 20V, 100V, 200V, 360V delivers to 4 voltage comparator (IC1a with four groups of reference voltages respectively, IC1b, IC1c and IC1d) inverting input, when the voltage to be measured after the dividing potential drop during greater than the voltage of inverting input, voltage comparator (IC1a, IC1b, IC1c and IC1d) the output high level, by R12, R13, R14, light corresponding four LED light emitting diode D1 after the R15 current limliting, D2, D3 and D4 (12) finish four sections voltage LED simulations and show.
3. portable multifunctional electrical equipment according to claim 1 is assisted maintenance/detecting pen, it is characterized in that described break-make detects the sounding cue circuit by K switch 2 (5), K switch 3 (6), hummer (15), power supply (16), detect test pencil A (1) and detect test pencil B (2) composition, hummer (15), power supply, detect test pencil A (1), detect test pencil B (2) series connection connection connection between switch (5) and the switch (6) with it, series circuit of common composition, press function button K switch 2 (5) and K switch 3 (6) simultaneously, when circuit under test during＜1000 ohm of resistances, hummer (15) sends the sound that pipes and points out, and represents that this loop is a connected state; Otherwise, be off-state, finish break-make and detect the sounding prompting.
4. portable multifunctional electrical equipment according to claim 1 is assisted maintenance/detecting pen, it is characterized in that described detection test pencil leads directly to functional circuit and is made up of K switch 1 (4), detection test pencil A (1) and detection test pencil B (2), K switch 1 (4) one termination detects test pencil A (1), another termination detects test pencil B (2), press function button K switch 1 (4), detect test pencil A (1) and detect between the test pencil B (2) and be in the short circuit state, formation detects test pencil A (1) and detects direct UNICOM between the test pencil B (2), finishes straight-through or the lead connection.
5. portable multifunctional electrical equipment according to claim 1 is assisted maintenance/detecting pen, it is characterized in that described detection test pencil illumination functions electric routing switch K5 (8), K switch 6 (9), light emitting diode D5 (13) and resistance R 16, R17 form, press the K switch 5 (8) that detects among the test pencil A (1), after resistance R 16 current limlitings, the light emitting diode D5 (13) that detects the installation of test pencil A (1) front end is luminous, and illumination is provided; Press the K switch 6 (9) that detects among the test pencil B (2), after resistance R 17 current limlitings, the light emitting diode D6 (14) that detects the installation of test pencil B (2) front end is luminous, and illumination is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105502453A CN102095913A (en) | 2010-11-19 | 2010-11-19 | Multi-functional portable auxiliary maintenance/detection pen for electrical appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105502453A CN102095913A (en) | 2010-11-19 | 2010-11-19 | Multi-functional portable auxiliary maintenance/detection pen for electrical appliances |
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| Publication Number | Publication Date |
|---|---|
| CN102095913A true CN102095913A (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105502453A Pending CN102095913A (en) | 2010-11-19 | 2010-11-19 | Multi-functional portable auxiliary maintenance/detection pen for electrical appliances |
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| Country | Link |
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| CN (1) | CN102095913A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182145A (en) * | 2015-06-15 | 2015-12-23 | 黄染之 | Tool used for maintaining electric appliances |
| CN105259517A (en) * | 2015-11-25 | 2016-01-20 | 长沙凯上电子科技有限公司 | Load state display circuit |
| CN106546865A (en) * | 2016-10-19 | 2017-03-29 | 中航飞机股份有限公司西安飞机分公司 | A kind of portable cable conduction detector and detection method |
| CN107785007A (en) * | 2016-08-30 | 2018-03-09 | Idec株式会社 | Light element and the band illumination functions buzzer for possessing the light element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2112158U (en) * | 1992-03-12 | 1992-08-05 | 孙凯 | Test pencil using acoustooptic determing voltage value |
| CN2282193Y (en) * | 1996-08-26 | 1998-05-20 | 林耀辉 | Acousto-optic display multifuncional test pencil |
| CN201237625Y (en) * | 2008-06-30 | 2009-05-13 | 河南索凌电气有限公司 | Test pen |
| CN201974492U (en) * | 2010-11-19 | 2011-09-14 | 红塔烟草(集团)有限责任公司 | Multifunctional and portable electric appliance auxiliary repair/detection pen |
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2010
- 2010-11-19 CN CN2010105502453A patent/CN102095913A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112158U (en) * | 1992-03-12 | 1992-08-05 | 孙凯 | Test pencil using acoustooptic determing voltage value |
| CN2282193Y (en) * | 1996-08-26 | 1998-05-20 | 林耀辉 | Acousto-optic display multifuncional test pencil |
| CN201237625Y (en) * | 2008-06-30 | 2009-05-13 | 河南索凌电气有限公司 | Test pen |
| CN201974492U (en) * | 2010-11-19 | 2011-09-14 | 红塔烟草(集团)有限责任公司 | Multifunctional and portable electric appliance auxiliary repair/detection pen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182145A (en) * | 2015-06-15 | 2015-12-23 | 黄染之 | Tool used for maintaining electric appliances |
| CN105259517A (en) * | 2015-11-25 | 2016-01-20 | 长沙凯上电子科技有限公司 | Load state display circuit |
| CN107785007A (en) * | 2016-08-30 | 2018-03-09 | Idec株式会社 | Light element and the band illumination functions buzzer for possessing the light element |
| CN107785007B (en) * | 2016-08-30 | 2021-07-13 | Idec株式会社 | Light guide unit and buzzer with illumination function having the same |
| CN106546865A (en) * | 2016-10-19 | 2017-03-29 | 中航飞机股份有限公司西安飞机分公司 | A kind of portable cable conduction detector and detection method |
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Application publication date: 20110615 |