CN110174576A - A kind of Optocoupler detection device - Google Patents
A kind of Optocoupler detection device Download PDFInfo
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- CN110174576A CN110174576A CN201910566605.XA CN201910566605A CN110174576A CN 110174576 A CN110174576 A CN 110174576A CN 201910566605 A CN201910566605 A CN 201910566605A CN 110174576 A CN110174576 A CN 110174576A
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- optocoupler
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 239000003990 capacitor Substances 0.000 claims description 48
- 238000001914 filtration Methods 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 abstract description 12
- 238000010168 coupling process Methods 0.000 abstract description 12
- 238000005859 coupling reaction Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
Abstract
The present invention provides a kind of Optocoupler detection device, including input voltage regulation circuit, output loop and optocoupler, the input terminal of the input voltage regulation circuit connection optocoupler, output loop connects the output end of optocoupler；Input voltage regulation circuit includes the first power supply, adjustable potentiometer and current-limiting resistance, the anode of first power supply connects the anode of optocoupler input by adjustable potentiometer, the cathode of first power supply connects the cathode of optocoupler input by current-limiting resistance, the size of current in input voltage regulation circuit is adjusted by adjustable potentiometer, realize the luminous intensity for changing light emitting diode in optocoupler, and then realize the voltage for adjusting optocoupler output, judge whether optocoupler is qualified according to the voltage of optocoupler output.It solves the problems, such as exist in the prior art using multimeter detection, reaches 100% using the Detection accuracy of Optocoupler detection device of the invention to optic coupling element, while greatly improving the efficiency of detection, saved the time cost of manpower and detection.
Description
Technical field
The present invention relates to technical field of rail traffic, and in particular to a kind of Optocoupler detection device more particularly to a kind of subway
Vehicle braking resistance controls box optocoupler inspection device for components.
Background technique
Photo-coupler is also known as photoisolator or photoelectrical coupler, abbreviation optocoupler.It is to transmit telecommunications using light as medium
Number device, usually photophore (infrared light-emitting diode LED) and light-receiving device (photosensitive semiconductor pipe, photo resistance) are encapsulated
In same shell.When input terminal power up signal, photophore emits beam, and light-receiving device receives just to generate photoelectric current after light,
It is flowed out from output end, to realize " electricity-light-electricity " conversion.
Currently, multimeter is generallyd use to detect the quality of optocoupler, but there are complicated for operation, detection efficiencies for this method
The case where low, easy false retrieval.
In actual production process, railcar braking resistor control is installed on the optic coupling element that commonsense method detects
Because optic coupling element reason leads to braking resistor control box, there are the disqualification rates of 30%-50% when box processed, so that braking resistor control
Making sheet need to be reprocessed largely when debugging.
In conclusion being badly in need of a kind of Optocoupler detection device to solve problems of the prior art.
Summary of the invention
It is an object of that present invention to provide a kind of Optocoupler detection device, specific technical solution is as follows:
A kind of Optocoupler detection device, including input voltage regulation circuit, output loop and optocoupler, the input voltage tune
Save the input terminal of circuit connection optocoupler, the output end of the output loop connection optocoupler；
The input voltage regulation circuit includes the first power supply, adjustable potentiometer and current-limiting resistance, first power supply
Anode the anode of optocoupler input is connected by adjustable potentiometer, the cathode of first power supply connects light by current-limiting resistance
The cathode of coupling input terminal adjusts the size of current in input voltage regulation circuit by adjustable potentiometer, realizes and change in optocoupler
The luminous intensity of light emitting diode, and then realize the voltage for adjusting optocoupler output, light is judged according to the voltage of optocoupler output
Whether coupling is qualified.
Preferred in above technical scheme, the output loop includes the second source connecting with optocoupler output, described
The anode of second source connects the collector of the optocoupler, and the cathode of the second source connects the emitter of the optocoupler.
Preferred in above technical scheme, the output loop further includes the second capacitor and biasing resistor, the biased electrical
Resistance is set between the anode of second source and the collector of optocoupler, the collector of the anode connection optocoupler of second capacitor,
The cathode of the cathode connection second source of second capacitor, can be obtained by the voltage between the second capacitor positive and negative electrode of measurement
The voltage of optocoupler output.
Preferred in above technical scheme, the output loop further includes DC/DC power module and third power supply, and described the
Three power supplys connect the input terminal of the DC/DC power module, and the third power supply of input is converted by DC/DC power module
Two power supplys simultaneously export, and the third power supply is direct current 110V.
It is preferred in above technical scheme, isolation electricity is equipped between the cathode of the second source and the cathode of third power supply
Hold.
It is preferred in above technical scheme, it also connects and is equipped between the anode and DC/DC power module of the third power supply
Fuse and anti-reverse diode, the anti-reverse diode are arranged close to DC/DC power module, and the fuse is close to third
Power supply setting.
Preferred in above technical scheme, the output loop further includes the 4th capacitor and third capacitor for filtering,
The anode of the anode connection second source of 4th capacitor, the cathode of the cathode connection second source of the 4th capacitor, institute
The anode of the anode connection DC/DC power module input terminal of third capacitor is stated, the cathode of the third capacitor connects third power supply
Cathode.
Preferred in above technical scheme, first power supply is direct current 30V, and the second source is direct current 12V.
Preferred in above technical scheme, the input power regulating loop further includes the first capacitor for filtering, institute
The anode of anode the first power supply of connection of first capacitor is stated, the cathode of the first capacitor connects the cathode of the first power supply.
It is preferred in above technical scheme, it further include the fixed device of optocoupler, the optocoupler is set on the fixed device of optocoupler
And input voltage regulation circuit and output loop are connected by the fixed device of optocoupler.
It applies the technical scheme of the present invention, has the advantages that
(1) Optocoupler detection device of the invention includes input voltage regulation circuit, output loop and optocoupler, passes through input
The size of current in adjustable potentiometer regulating loop in voltage regulation loop, realize change optocoupler in light emitting diode shine
Intensity, and then realize that phototriode is connected in the case where light emitting diode is transmitted through the light action come in optocoupler, as long as therefore detection light
The voltage of coupling output end can determine whether optocoupler is qualified, solve the problems, such as exist in the prior art using multimeter detection,
Reach 100% using the Detection accuracy of Optocoupler detection device of the invention to optic coupling element, avoids prior art detection method
Lead to braking resistor control box the case where there are the disqualification rates of 30%-50%, while greatly improving the efficiency of detection, saves
The about time cost of manpower and detection.
(2) Optocoupler detection device of the invention setting fuse prevents circuit from overloading, and carries out effective protection to circuit,
Anti-reverse diode is arranged can use the one-way conduction of diode prevents the positive and negative anodes of direct current 110V power supply reversed, to circuit
It plays a protective role.
(3) the fixed device of Optocoupler detection device of the invention setting optocoupler realizes that optocoupler is inserted on the fixed device of optocoupler
It is connected to realizing with input voltage regulation circuit, output loop, optic coupling element easy to disassemble and install, improves detection efficiency.
(4) optocoupler output can be obtained in the voltage that Optocoupler detection device of the invention measures between the second capacitance cathode and cathode
The voltage at end judges that the method for completeness of optical coupler is more convenient by optocoupler pin compared with the existing technology, measurement it is more efficient.
(5) isolation capacitance is arranged between direct current 110V and direct current 12V in Optocoupler detection device of the invention, can be effective
Prevent EMC from interfering (electromagnetic interference).
(6) Optocoupler detection device of the invention setting first capacitor, the second capacitor, third capacitor and the 4th capacitor carry out
Filtering guarantees the stability of circuit work.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the circuit diagram of Optocoupler detection device of the present invention；
Wherein, 1, input voltage regulation circuit, 2, output loop, C1, first capacitor, R1, current-limiting resistance, VR1, adjustable electric
Position device, U1, optocoupler, C2, the second capacitor, R2, biasing resistor, S1, DC/DC power module, D1, anti-reverse diode, F1, insurance
Silk, C3, third capacitor, C4, the 4th capacitor, C5, isolation capacitance.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
Embodiment 1:
Referring to Fig. 1, a kind of Optocoupler detection device is specifically a kind of for railcar braking resistor control box optocoupler member
Part detection device, including input voltage regulation circuit 1, output loop 2 and optocoupler U1, the input voltage regulation circuit 1 connect
The input terminal of optocoupler U1 is connect, the output loop 2 connects the output end of optocoupler U1；
The input voltage regulation circuit 1 includes the first power supply, adjustable potentiometer VR1 and current-limiting resistance R1, and described the
The anode of one power supply passes through the anode of adjustable potentiometer VR1 connection optocoupler U1 input terminal, and the cathode of first power supply passes through limit
The cathode of leakage resistance R1 connection optocoupler U1 input terminal adjusts the electric current in input voltage regulation circuit 1 by adjustable potentiometer VR1
Size realizes the luminous intensity for changing light emitting diode in optocoupler U1, and then realization adjusts the voltage of optocoupler U1 output end, according to
The voltage of optocoupler U1 output end judges whether optocoupler U1 is qualified.
The output loop includes the second source connecting with optocoupler U1 output end, the anode connection institute of the second source
The collector of optocoupler U1 is stated, the cathode of the second source connects the emitter of the optocoupler U1.
First power supply is direct current 30V, and the second source is direct current 12V.
The Optocoupler detection device further includes the fixed device of optocoupler, and the optocoupler U1 is set on the fixed device of optocoupler and leads to
Cross the fixed device connection input voltage regulation circuit 1 of optocoupler and output loop 2.
Preferably, the fixed device of the optocoupler can cut intermediate 10 feet production using 14 general foot IC sockets and
At, it realizes that optocoupler U1 is inserted into can be thus achieved on the fixed device of optocoupler and is connected to input voltage regulation circuit, output loop, it is convenient
Optic coupling element is disassembled and installed, detection efficiency is improved.
The output loop further includes that the second capacitor C2 and biasing resistor R2, the biasing resistor R2 are set to second source
Anode and optocoupler U1 collector between, the second capacitor C2 anode connection optocoupler U1 collector, it is described second electricity
The cathode for holding the cathode connection second source of C2, can be obtained optocoupler U1 by the voltage between the second capacitor C2 positive and negative electrode of measurement
The voltage of output end.
Optocoupler detection device of the present invention judges whether optocoupler U1 is qualified according to the voltage of optocoupler U1 output end, specifically: make
With the voltage between multimeter measurement the second capacitor C2 anode and cathode, optocoupler member is determined when the voltage measured is less than or equal to 10V
Part is qualified, determines that optic coupling element is unqualified when measuring voltage greater than 10V.
Applicant will determine that voltage is set as 10V based on practical experience, although the judgement voltage meeting between different model optocoupler
There are certain differences, but the judgement voltage of 10V can substantially meet the qualification determination demand of existing optocoupler product, certainly
Those skilled in the art can also carry out adjustment of floating accordingly according to the actual situation.
The output loop 2 further includes DC/DC power module S1 and third power supply, and the third power supply connects the DC/
The third power supply of input is converted into second source by DC/DC power module S1 and exported by the input terminal of DC power module S1,
The third power supply is direct current 110V.
It will be understood by those skilled in the art that the as second source that the output end of the DC/DC power module S1 exports,
DC/DC power module S1 is that direct current 110V is converted to direct current 12V.
Isolation capacitance C5 is equipped between the cathode of the second source and the cathode of third power supply.
It also connects between the anode of the third power supply and DC/DC power module S1 and is equipped with fuse F1 and anti-reverse two pole
Pipe D1, the anti-reverse diode D1 are arranged close to DC/DC power module S1, and the fuse F1 is arranged close to third power supply.
Setting fuse F1 prevents circuit from overloading, and carries out effective protection to circuit, anti-reverse diode D1 is arranged can
It prevents the positive and negative anodes of direct current 110V power supply reversed with the one-way conduction using diode, plays a protective role to circuit.
The output loop 2 further includes the 4th capacitor C4 and third capacitor C3 for filtering, the 4th capacitor C4's
The anode of anode connection second source, the cathode of the cathode connection second source of the 4th capacitor C4, the third capacitor
The anode of anode connection DC/DC power module S1 input terminal, the cathode of the cathode connection third power supply of the third capacitor.
The input power regulating loop further includes that the anode of the first capacitor C1, the first capacitor C1 for filtering connect
The anode of the first power supply is connect, the cathode of the first capacitor C1 connects the cathode of the first power supply.
Using the technical solution of the present embodiment, specifically:
By in the fixed device of optic coupling element to be measured insertion optocoupler, Optocoupler detection device of the invention is powered, by adjustable
The electric current that potentiometer VR1 is adjusted in input voltage circuit makes optocoupler work, and the voltage at the second capacitor both ends is measured using multimeter,
It measures voltage and then determines optocoupler qualification less than or equal to 10V, measure voltage greater than 10V and then determine that optocoupler is unqualified.
It applies the technical scheme of the present invention, effect is:
Solve the problems, such as exist in the prior art using multimeter detection, using Optocoupler detection device of the invention to light
The Detection accuracy of coupling element reaches 100%, and avoiding prior art detection method from leading to braking resistor control box, there are 30%-
The case where 50% disqualification rate, while the efficiency of detection is greatly improved, save the time cost of manpower and detection.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of Optocoupler detection device, which is characterized in that including input voltage regulation circuit (1), output loop (2) and optocoupler
(U1), the input terminal of input voltage regulation circuit (1) connection optocoupler (U1), the output loop (2) connect optocoupler (U1)
Output end；
The input voltage regulation circuit (1) includes the first power supply, adjustable potentiometer (VR1) and current-limiting resistance (R1), described
The anode of first power supply connects the anode of optocoupler (U1) input terminal, the cathode of first power supply by adjustable potentiometer (VR1)
The cathode that optocoupler (U1) input terminal is connected by current-limiting resistance (R1) adjusts input voltage regulation by adjustable potentiometer (VR1)
Size of current in circuit (1) realizes the luminous intensity for changing light emitting diode in optocoupler (U1), and then realizes and adjust optocoupler
(U1) voltage of output end judges whether optocoupler (U1) is qualified according to the voltage of optocoupler (U1) output end.
2. Optocoupler detection device according to claim 1, which is characterized in that the output loop includes defeated with optocoupler (U1)
The second source of outlet connection, the anode of the second source connect the collector of the optocoupler (U1), the second source
Cathode connects the emitter of the optocoupler (U1).
3. Optocoupler detection device according to claim 2, which is characterized in that the output loop further includes the second capacitor
(C2) and biasing resistor (R2), the biasing resistor (R2) be set to the anode of second source and optocoupler (U1) collector it
Between, the collector of anode connection optocoupler (U1) of second capacitor (C2), the cathode connection second of second capacitor (C2)
The voltage of optocoupler (U1) output end can be obtained by the voltage between measurement the second capacitor (C2) positive and negative electrode for the cathode of power supply.
4. Optocoupler detection device according to claim 3, which is characterized in that the output loop (2) further includes DC/DC electricity
Source module (S1) and third power supply, the third power supply connect the input terminal of the DC/DC power module (S1), pass through DC/DC
The third power supply of input is converted into second source and exported by power module (S1), and the third power supply is direct current 110V.
5. Optocoupler detection device according to claim 4, which is characterized in that the cathode and third power supply of the second source
Cathode between be equipped with isolation capacitance (C5).
6. Optocoupler detection device according to claim 5, which is characterized in that the anode of the third power supply and DC/DC electricity
Also series connection is equipped with fuse (F1) and anti-reverse diode (D1) between source module (S1), and the anti-reverse diode (D1) is close
DC/DC power module (S1) setting, the fuse (F1) are arranged close to third power supply.
7. Optocoupler detection device according to claim 6, which is characterized in that the output loop (2) further includes for filtering
The 4th capacitor (C4) and third capacitor (C3) of wave, the anode of the anode connection second source of the 4th capacitor (C4) are described
The cathode of the cathode connection second source of 4th capacitor (C4), anode connection DC/DC power module (S1) of the third capacitor
The anode of input terminal, the cathode of the cathode connection third power supply of the third capacitor.
8. the Optocoupler detection device according to any one of claim 2-7, which is characterized in that first power supply is straight
30V is flowed, the second source is direct current 12V.
9. Optocoupler detection device according to any one of claims 1-7, which is characterized in that the input power is adjusted
Circuit further includes the first capacitor (C1) for filtering, the anode of anode the first power supply of connection of the first capacitor (C1), institute
The cathode for stating first capacitor (C1) connects the cathode of the first power supply.
10. Optocoupler detection device according to any one of claims 1-7, which is characterized in that further include that optocoupler is fixed
Device, the optocoupler (U1) are set on the fixed device of optocoupler and connect input voltage regulation circuit by the fixed device of optocoupler
(1) and output loop (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566605.XA CN110174576A (en) | 2019-06-27 | 2019-06-27 | A kind of Optocoupler detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910566605.XA CN110174576A (en) | 2019-06-27 | 2019-06-27 | A kind of Optocoupler detection device |
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| CN110174576A true CN110174576A (en) | 2019-08-27 |
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| CN201910566605.XA Pending CN110174576A (en) | 2019-06-27 | 2019-06-27 | A kind of Optocoupler detection device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411104A (en) * | 2011-08-25 | 2012-04-11 | 上海华碧检测技术有限公司 | Method for detecting completeness of optical coupler |
| CN203658480U (en) * | 2013-09-29 | 2014-06-18 | 范学超 | Voltage-stabilization photoelectric coupler detection circuit |
| CN205067654U (en) * | 2015-10-29 | 2016-03-02 | 芜湖美智空调设备有限公司 | A online test appearance for detecting opto -coupler |
| CN205610197U (en) * | 2016-03-24 | 2016-09-28 | 湖南工业大学 | A photoelectric coupling module that is used for circuit breaker and has interchange overvoltage detection module |
| CN210376543U (en) * | 2019-06-27 | 2020-04-21 | 湖南联诚轨道装备有限公司 | Optical coupler detection device |
-
2019
- 2019-06-27 CN CN201910566605.XA patent/CN110174576A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411104A (en) * | 2011-08-25 | 2012-04-11 | 上海华碧检测技术有限公司 | Method for detecting completeness of optical coupler |
| CN203658480U (en) * | 2013-09-29 | 2014-06-18 | 范学超 | Voltage-stabilization photoelectric coupler detection circuit |
| CN205067654U (en) * | 2015-10-29 | 2016-03-02 | 芜湖美智空调设备有限公司 | A online test appearance for detecting opto -coupler |
| CN205610197U (en) * | 2016-03-24 | 2016-09-28 | 湖南工业大学 | A photoelectric coupling module that is used for circuit breaker and has interchange overvoltage detection module |
| CN210376543U (en) * | 2019-06-27 | 2020-04-21 | 湖南联诚轨道装备有限公司 | Optical coupler detection device |
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