CN103543369A - Circuit detector - Google Patents
Circuit detector Download PDFInfo
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- CN103543369A CN103543369A CN201210246824.8A CN201210246824A CN103543369A CN 103543369 A CN103543369 A CN 103543369A CN 201210246824 A CN201210246824 A CN 201210246824A CN 103543369 A CN103543369 A CN 103543369A
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- circuit
- light emitting
- emitting diodes
- detector
- circuit detector
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Abstract
The invention relates to a circuit detector for detecting wiring states of control circuit and mainly solves the problems that the control circuit of an internal combustion locomotive is detected by a universal meter which is large, inconvenient to carry and operate, low in efficiency, requires lighting equipment when light is poor, and is easily burnt once misoperation occurs. The circuit detector comprises one set of light emitting diodes, buzzers, another set of light emitting diodes which are serially connected to form a circuit. The other ends of the two sets of the light emitting diodes are connected with probes through fuses. The circuit detector has the advantages that no external power supply is needed, the power supply of the to-be-detected circuit is borrowed directly, a sound-light alarming device is used, and the circuit detector is simple and reasonable in circuit, convenient to use, lightweight, convenient to carry, safe and reliable.
Description
Technical field
The invention belongs to diesel locomotive control circuit and check technical field, relate to specifically the circuit detector that checks operation circuit wiring state.
Background technology
Diesel locomotive control circuit is a kind of special circuit on diesel locomotive, its purposes is the critical circuits of controlling combustion engine car operation, therefore check whether the whether correct combustion motor car running of control circuit is normally very important, if control circuit goes wrong, likely cause the accidents such as diesel locomotive machine is broken, when serious, can cause and burn diesel locomotive machine, at present, control circuit inspection adopts multimeter, but multimeter has following shortcoming; One, volume is large, carries inconvenience; Two, be to observe dial plate with eyes, just can know whether power supply is connected, if under the bad environment of locomotive glazed thread, cannot observe dial plate, just need to increase light fixture.While three, working, people's eyes should be observed dial plate, also will observe test pencil, and migration is between the two, and efficiency is low, use inconvenience, have certain danger.Four, multimeter cost is high, once misoperation multimeter easily burns out, loses larger.
Summary of the invention
The object of the invention is for above-mentioned deficiency, and a kind of volume proposing is little lightweight, easy to carry, easy and simple to handle, reduces labour intensity and improves safety coefficient, the circuit detector that cost is low.
Technical solution of the present invention is: circuit detector is comprised of one group of light emitting diode, hummer and another group light emitting diode series circuit, and another end of two groups of light emitting diodes connects probe by insurance respectively.
Two groups of light emitting diodes described in technical solution of the present invention connect and form by two light emitting diode reverse parallel connections.
Advantage of the present invention is as follows: (1) the present invention does not need external power supply, directly uses the power supply in circuit-under-test.(2) adopt acoustic-optic alarm, circuit theory is simple and practical, by rational design, realizes the function that whether intact testing circuit is.(3) structure interchangeability is good, and two probe structures are identical, at any time Alternate.(4) easy to use.(5) lightweight easy to carry, safe and reliable.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present invention.
Embodiment
As shown in Figure 1, circuit detector of the present invention comprises 7,10 and two hummers 8,9 of two groups of light emitting diodes, one group of light emitting diode 7 and two hummers 8,9 and another group light emitting diode 10 be coupled in series successively, the other end of two groups of light emitting diodes 7,10 connects probe 4,3 by insuring 5,6 respectively, two groups of light emitting diodes 7,10 form by two light emitting diode reverse parallel connections, and the positive pole of two light emitting diodes is connected with negative pole.Principle of work: negative terminals 1 overlap joint or the earth terminal by probe 3 with circuit under test, with another, visit the connection terminal 2 of the required inspection of prodding, if light emitting diode 7,10 is luminous, and hummer 8,9 sounds a buzzer, and this terminal switches on power.During use, operator does not need deliberately to observe luminous situation, can hear buzzer simultaneously.
Claims (2)
1. a circuit detector, it is characterized in that: detector is comprised of one group of light emitting diode (7), hummer (8,9) and another group light emitting diode (10) series circuit, and another end of two groups of light emitting diodes (7,10) connects probe (4,3) by insurance (5,6) respectively.
2. according to claim a kind of circuit detector, is characterized in that: described two groups of light emitting diodes (7,10) connect and form by two light emitting diode reverse parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210246824.8A CN103543369A (en) | 2012-07-17 | 2012-07-17 | Circuit detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210246824.8A CN103543369A (en) | 2012-07-17 | 2012-07-17 | Circuit detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103543369A true CN103543369A (en) | 2014-01-29 |
Family
ID=49967004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210246824.8A Pending CN103543369A (en) | 2012-07-17 | 2012-07-17 | Circuit detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103543369A (en) |
-
2012
- 2012-07-17 CN CN201210246824.8A patent/CN103543369A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140129 |