CN108535266A - Electric connector fretting wear detecting system based on Infrared Thermography Technology and method - Google Patents
Electric connector fretting wear detecting system based on Infrared Thermography Technology and method Download PDFInfo
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- CN108535266A CN108535266A CN201810324472.0A CN201810324472A CN108535266A CN 108535266 A CN108535266 A CN 108535266A CN 201810324472 A CN201810324472 A CN 201810324472A CN 108535266 A CN108535266 A CN 108535266A
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- 238000001931 thermography Methods 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 30
- 238000002474 experimental method Methods 0.000 claims abstract description 26
- 230000006641 stabilisation Effects 0.000 claims abstract description 22
- 238000011105 stabilization Methods 0.000 claims abstract description 22
- 238000001757 thermogravimetry curve Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000009826 distribution Methods 0.000 claims abstract description 17
- 239000012212 insulator Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
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- 238000002360 preparation method Methods 0.000 claims description 5
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- 239000000853 adhesive Substances 0.000 claims description 3
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- 238000005452 bending Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims 1
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
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- 238000004611 spectroscopical analysis Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
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- 230000001066 destructive effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
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Abstract
The present invention relates to electric connector fretting wear detecting system and method based on Infrared Thermography Technology, which includes for making electric connector to be detected pass through the detection device that plug experiment generates the plug-in and pull-off device of abrasive dust and plugs the Infrared Thermogram in experiment for obtaining electric connector to be detected；The plug-in and pull-off device includes clamping unit；Clamping unit includes the jack fixture of the pin clamp and jack for clamping electrical connector for the contact pin for removing shell for clamping electrical connector, and jack fixture is with pin clamp to dress of feeling at ease；Jack fixture is mounted on the front end of mobile platform；Detection device includes DC voltage stabilization and current stabilization source, thermal infrared imager and computer for shooting the Infrared Thermogram in electric connector plug experiment to be detected, and thermal infrared imager is connect with computer, thermal infrared imager face electric connector to be detected.The detecting system can carry out the lossless real-time detection of contact, can intuitively, quickly and correctly position the abrasive dust distribution situation between electric connector contact.
Description
Technical field
The present invention relates to electric connector state inspection field, specifically a kind of electrical connection based on Infrared Thermography Technology
Device fretting wear detecting system and method.
Background technology
Electric connector is one of the important electromechanical compo for realizing electrical and signal break-make.Since electric connector has height
The characteristics of quality and high reliability, therefore it is widely used in the fields such as aerospace, national defence, telecommunications.Electric connector in addition to
Meet outside general performance requirement, especially important requirement, which is electric connector, must reach contact well, and reliable operation is safeguarded
Convenient, reliability directly affects the normal work of Electrical and Electronic equipment.Electric connector storage, transport and work when,
It can be accompanied by repeatedly plug or vibration, relative displacement can occur between contact contact pin and jack, to generate fine motion phenomenon, draw
The mechanical wear of contact site is played, wear debris is generated and is deposited in the periphery of eroded area；Abrasive dust and due to abrasion exposure
Base metal and the reacted in air, form oxide so that the contact resistance of connector increases, and eventually leads to and connects
Failure is touched, to influence the contact performance of electric connector, or even electrical equipment can be made to be stopped, it is possible to cause huge damage
It loses.
Currently, the detection of electric connector fretting wear is most of all to use special contact sample, this special contact
Sample is not true electric connector, can not reflect the abrasive dust distribution situation of actual electric connector, and is not directed to abrasive dust
Formation and evolution process.Such as (Ren Wanbin, Jiao Yubin, Zhai Guofu electric connector fretting wears research are comprehensive by the scholars such as wantonly ten thousand shore
State [J] electromechanical compos, 2010,30 (1):Contact sample 28-38.) is first made, then detection will be by being sliced, sampling every time
Mode, and by scanning electron microscope (SEM), X-ray dispersion energy depressive spectroscopy (EDS), transmission electron microscope
(TEM), the methods of electron scattering measurement observation sample surface morphology.If observing abrasive dust distribution situation using the detection method, need
It could be carried out after completing wear test every time, and due to slicing mode sample preparation, sample can be all destroyed after experiment every time, no
It can continue again to test the same sample, i.e., each sample can only carry out an abrasion detection, and cannot be examined in real time
It surveys.
Invention content
In view of the deficiencies of the prior art, the technical issues of present invention intends to solve is to provide a kind of based on Infrared Thermography Technology
Electric connector fretting wear detecting system and method, which can carry out the lossless real-time detection of contact, can
Intuitively, the abrasive dust distribution situation between electric connector contact is quickly and correctly positioned.This method is shot using thermal infrared imager
The Infrared Thermogram of electric connector in plug experiment, and processing analysis is carried out to Infrared Thermogram, it can intuitively, fast provide
The distribution situation of abrasive dust.
The present invention solve the technical problem the technical solution adopted is that, a kind of being electrically connected based on Infrared Thermography Technology is provided
Connect device fretting wear detecting system, which is characterized in that the system includes for making electric connector to be detected pass through plug experiment production
The plug-in and pull-off device of raw abrasive dust and the detection device that the Infrared Thermogram in experiment is plugged for obtaining electric connector to be detected.
The plug-in and pull-off device includes installation pedestal, mobile platform, the speed of service for controlling plug-in and pull-off device and direction
Control unit, the driving unit for driving mobile platform to be moved forward and backward and clamping unit；The clamping unit includes for pressing from both sides
Hold electric connector remove shell contact pin pin clamp and jack for clamping electrical connector jack fixture, jack fixture
With pin clamp to dress of feeling at ease；Jack fixture is mounted on the front end of mobile platform；
The pin clamp is " L " type bending plate, including riser and bottom plate, wherein set on riser there are one with electricity to be detected
The identical seam allowance of connector pin insulator shape, and on riser multiple screw threads are evenly arranged in seam allowance peripheral circumferential
Through-hole covers left baffle ring and right baffle ring on the riser equipped with tapped through hole, and left baffle ring and right baffle ring surround circular ring shape, annulus
Internal diameter is consistent with the diameter of jack insulator, and annular groove, the lucky energy in space of annular groove are equipped on left baffle ring and right baffle ring
Accommodate multiple tapped through holes on riser；The braking for preventing electric connector from rotating is provided on the left baffle ring or right baffle ring
Key, the brake key weld together with corresponding baffle ring, brake key and the groove on electric connector contact pin insulator to be detected
Match；Electric connector to be detected is bolted on by left baffle ring and right baffle ring on riser；The bottom plate by bolt with
Installation pedestal is fixed together；
The detection device includes DC voltage stabilization and current stabilization source, infrared in electric connector to be detected plug experiment for shooting
The thermal infrared imager and computer of thermography, thermal infrared imager are connect with computer, and the electric connector to be detected and direct current are steady
Press constant-current source electrical connection, thermal infrared imager face electric connector to be detected.
A kind of electric connector fretting wear detection method based on Infrared Thermography Technology, this method use above-mentioned based on red
The electric connector fretting wear detecting system of outer thermography technique, when being heated using DC voltage stabilization and current stabilization source in electric connector contact
The phenomenon for having wearing part different with surface temperature caused by the difference of no wearing part contact resistance identifies the distribution of abrasive dust
Situation is as follows：
1) preparation of detected member：The metal shell for removing electric connector, will be black outside the one of jack of electric connector
Color insulator, which amputates part, makes it expose a complete contact spring, then in the contact spring surface coating one for needing to shoot
Layer black ink simultaneously dries or pastes black tape, or thermal infrared imager and electric connector are placed in the same camera bellows；It will be above-mentioned
Conducting wire on treated electric connector welding after determining that electric connector has reached thermal equilibrium state, then electric connector is mounted on
Plug experiment is carried out on plug-in and pull-off device；
2) before the electric connector in plug being lain in a horizontal plane in thermal infrared imager, circuit is connected, adjusts DC voltage-stabilizing
Constant-current source output current size, makes electric connector reach normal operating conditions；
3) when detecting, infrared heat is arranged according to the attribute of coating or adhesive material on the contact spring of electric connector to be detected
As the parameter of instrument, parameter setting includes emissivity；
4) Infrared Thermogram of contact in thermal infrared imager shooting plug experiment is utilized；
5) by the infrared thermal image technique software installed on computer, setting segmented linear gray stretches and temperature range,
To obtain the Infrared Thermogram of abrasive dust distribution.
Compared with prior art, the beneficial effects of the invention are as follows：
1. detecting system of the present invention passes through the pin clamp of the clamping unit of redesign plug-in and pull-off device, enabling clamping
Electric connector removes the contact pin of metal shell, is provided a convenient for experiment herein.
2. infrared imaging detection can intuitively, quickly and correctly position the distribution shape of the abrasive dust between electric connector contact
Condition, easy to operate, actual application value is big.
3. the detection method of the present invention and scanning electron microscope (SEM), X-ray dispersion energy depressive spectroscopy (EDS), transmission
The methods of electron microscope (TEM), electron scattering measurement are compared, and are not needed destructive sampling slice, can directly be contacted
The sample consumption in experimental study is saved in part non-destructive testing；And it can realize continuous experiment and test, point of abrasive dust can be obtained
The evolution process of cloth situation and changes in distribution.
4. detection time is short, speed is fast；Test equipment maintenance cost is low.
Description of the drawings
Fig. 1 is the flow chart of the method for the present invention；
Fig. 2 is that the present invention is based on the solids of the plug-in and pull-off device of the electric connector fretting wear detecting system of Infrared Thermography Technology
Structural schematic diagram；
Fig. 3 (a) is the isometric side structure schematic diagram of pin clamp of the present invention；
Fig. 3 (b) is the main structure diagram of pin clamp；
Fig. 3 (c) is the schematic cross-sectional view in the faces A-A in Fig. 3 (b)；
Fig. 4 is the overlooking structure diagram of pin clamp of the present invention；
Fig. 5 is the left view structural representation of pin clamp of the present invention；
Fig. 6 is the principle schematic of detecting system method of the present invention；
Fig. 7 is the Infrared Thermogram that embodiment 1 plugs 200 times；
Fig. 8 is the Infrared Thermogram that embodiment 1 plugs 800 times；
In figure, 1- installation pedestals, 2- driving units, 3- mobile platforms, 4- pin clamps, 5- jack fixtures, 41-seam allowances,
42-annular grooves, 43-right baffle rings, 44-left baffle rings, 45-brake keies, 46-bolts, 6-DC voltage stabilization and current stabilization sources, 7-electricity
Connector, 8-thermal infrared imagers, 9-computers.
Specific implementation mode
The present invention is explained further with reference to embodiment and attached drawing, but not in this, as to the application protection domain
It limits.
A kind of electric connector fretting wear detecting system (abbreviation system, referring to figure based on Infrared Thermography Technology of the present invention
2) include generating the plug-in and pull-off device of abrasive dust and for obtaining to be detected be electrically connected for making electric connector to be detected pass through plug experiment
Connect the detection device of the Infrared Thermogram in device plug experiment.
The plug-in and pull-off device includes installation pedestal 1, control unit (not marked in figure), driving unit 2,3 and of mobile platform
(connection of specific each section is formed referring to patent clamping unit：ZL201510257895.1), control unit is driven by stepper motor
Dynamic device and controller and 24V DC power supplies composition provide instruction to stepper motor by stepper motor driver, can control
The speed of service, direction of plug-in and pull-off device etc.；The driving unit includes stepper motor and feed screw nut, and stepper motor drives leading screw
Nut moves, and to drive electric connector jack to complete plug, driving unit drives mobile platform to be moved forward and backward；The clamping is single
Member includes the jack of the pin clamp 4 and jack for clamping electrical connector for the contact pin for removing shell for clamping electrical connector
Fixture 5, jack fixture 5 is with pin clamp 4 to dress of feeling at ease；Jack fixture 5 is mounted on the front end of mobile platform；
The pin clamp 4 is " L " type bending stainless steel, and in practical applications, pin clamp 4 can also be other materials
Material, including riser and bottom plate wherein set that there are one seam allowances identical with electric connector contact pin insulator shape to be detected on riser
41, and multiple tapped through holes are evenly arranged in 41 peripheral circumferential of seam allowance on riser, in the riser equipped with tapped through hole
The left baffle ring 44 of upper covering and right baffle ring 43, left baffle ring 44 and right baffle ring 43 surround circular ring shape, the internal diameter and jack insulator of annulus
Diameter it is consistent, annular groove 42 is equipped on left baffle ring 44 and right baffle ring 43, the space of annular groove 42 can accommodate riser just
On multiple tapped through holes；The brake key for preventing electric connector from rotating is provided on the left baffle ring 44 or right baffle ring 43
45, the brake key 45 welds together with corresponding baffle ring, on brake key 45 and electric connector contact pin insulator to be detected
Groove match；Electric connector to be detected is fixed on by bolt 46 on riser by left baffle ring 44 and right baffle ring 43；The bottom plate
It is fixed together by bolt and installation pedestal 1；
The detection device includes DC voltage stabilization and current stabilization source 6, red in electric connector to be detected plug experiment for shooting
The thermal infrared imager 8 and computer 9 of outer thermography, thermal infrared imager 8 are connect with computer 9, the electric connector to be detected 7 with
DC voltage stabilization and current stabilization source 6 is electrically connected, 8 face of thermal infrared imager electric connector 7 to be detected；In practical applications, DC voltage-stabilizing is steady
The size of current in stream source 6 can change according to actual conditions.
In the present invention, it is equipped on the mobile platform 3 based on the digital display type contact engaging and separating force by showing plug force data.
In the present invention, 8 tapped through holes are equipped with around seam allowance on the riser and be equally distributed, left baffle ring or right gear
Annular groove on ring covers four tapped through holes.
In the present invention, it is provided with 4 tapped through holes on the bottom plate and is equally distributed, bottom plate is fixed with installation pedestal
Together.
In the present invention, the size of seam allowance size is slightly larger than the size of contact pin insulator on the riser.
In the present invention, the circular ring shape internal diameter that the left baffle ring and right baffle ring are formed is the diameter of jack insulator, thickness
For the distance between electric connector contact pin insulator and jack insulator.
In the present invention, the groove width of annular groove is slightly larger than the diameter of tapped through hole on the left baffle ring and right baffle ring.
In the present invention, the electric connector needs to remove metal shell, by the black outside the one of jack of electric connector
Insulator amputates its about one third, exposes a complete contact spring, is then applied on the contact spring surface for needing to shoot
It covers one layer of black ink and dries；Electric connector is mounted on plug instrument and carries out plug experiment.
The electric connector contact can coat black ink, paste black tape or be placed on thermal infrared imager and electric connector
In the same camera bellows, to reduce reflectivity and reflected energy.In practical applications, the material for being tested electric connector contact also may be used
Be other metals (such as：Tin bronze, beryllium-bronze etc.), the core number and pin diameter of electric connector to be measured can change, for
The electric connector to be measured of different size can select the pin clamp of dimension.
When said detecting system works, electric connector electrified regulation is given using DC voltage stabilization and current stabilization source, makes electric connector temperature
Degree increases.In temperature-rise period, when electric current flows through contact fray, since the contact resistance of fray is bigger,
Fever can be more serious than no fray, i.e. fray temperature ratio is high without fray temperature.
The electric connector fretting wear detection method based on Infrared Thermography Technology that the present invention provides a kind of, it is steady using direct current
There is surface caused by wearing part and difference without wearing part contact resistance in electric connector contact when pressure constant-current source heating
The different phenomenon of temperature identifies the distribution situation of abrasive dust.Specific implementation step is as follows：
It is as follows：
1) preparation of detected member：The metal shell for removing electric connector, will be black outside the one of jack of electric connector
Color insulator, which amputates part, makes it expose a complete contact spring, then in the contact spring surface coating one for needing to shoot
Layer black ink simultaneously dries or pastes black tape, or thermal infrared imager and electric connector are placed in the same camera bellows；It will be above-mentioned
Conducting wire on treated electric connector welding after determining that electric connector has reached thermal equilibrium state, then electric connector is mounted on
Plug experiment is carried out on plug-in and pull-off device；
2) before the electric connector in plug being lain in a horizontal plane in thermal infrared imager, circuit is connected, adjusts DC voltage-stabilizing
Constant-current source output current size, makes electric connector reach normal operating conditions；
3) when detecting, infrared heat is arranged according to the attribute of coating or adhesive material on the contact spring of electric connector to be detected
As the parameter of instrument, parameter setting includes emissivity；
4) Infrared Thermogram of contact in thermal infrared imager shooting plug experiment is utilized；
5) by the infrared thermal image technique software installed on computer, setting segmented linear gray stretches and temperature range,
To obtain the Infrared Thermogram of abrasive dust distribution.
Embodiment 1
In the present embodiment, the huge brother MAG13 in model Shanghai of the thermal infrared imager is installed on the computer infrared
Thermal imagery processing software is ThermoX.
A kind of electric connector fretting wear detecting system and method based on Infrared Thermography Technology are present embodiments provided, is had
Body implementation steps are as follows：
1) preparation of detected member：Electric connector needs to remove metal shell, will be outside the one of jack of electric connector
Black insulator amputates its about one third, exposes a complete contact spring, the contact spring table then shot in needs
Face coats one layer of black ink and dries；By conducting wire on treated electric connector welding, determine that electric connector has reached heat
After equilibrium state, then electric connector is mounted on plug-in and pull-off device and carries out plug experiment, the present embodiment is to plug 200 times and 800
For secondary.
2) circuit is connected, and before the electric connector in plug is lain in a horizontal plane in thermal infrared imager, it is steady adjusts direct current
It presses constant-current source output current size 10A to heat electric connector, electric connector is made to reach normal operating conditions；
3) when detecting, what it is due to this experiment contact spring coating is black ink, and emissivity is set as ideal black
Body 1.0；
4) Infrared Thermogram of contact in thermal infrared imager shooting plug experiment is utilized；
5) by the infrared thermal image technique software installed on computer, setting segmented linear gray is stretched as 0-255 and temperature
Degree range is set as 29 DEG C -30 DEG C, to obtain the Infrared Thermogram of abrasive dust distribution；
6) Infrared Thermogram of the abrasive dust distribution of taken different plug numbers is compared and analyzed, is contacted
The situation of change that abrasive dust is distributed after part relative motion.
The material of electric connector contact is brass in the present embodiment.The core number and pin diameter difference of tested electric connector
Size of current for 2 cores and 3.5mm, DC voltage stabilization and current stabilization source is 10A, and pin clamp is stainless steel plate.
It is respectively the Infrared Thermogram for plugging 200 times and 800 times as shown in Figure 7,8, it is as can be seen from Figure, bright in Fig. 8
Area is obviously bigger than Fig. 7.This is because with the increase of plug number, the abrasive dust between contact can also become increasingly
More, contact resistance can also increase therewith.Abrasive dust is concentrated mainly on the first half and contact pin of jack contact reed inner surface in Fig. 7
Middle section, in swapping process constantly push away stone roller, a part of abrasive dust concentrates on eroded area edge, also one in Fig. 8
The abrasive dust of part abrasive dust presentation bulk graininess, entire contact spring inner surface and male portion also gradually increases.According to abrasion
The difference of degree, the abrasive dust distribution between contact are showed by different colors.It can preferably be detected using thermal infrared imager
The variation that abrasive dust is distributed after to the distribution situation of abrasive dust between contact and contact relative motion.
The present invention does not address place and is suitable for the prior art.
Claims (5)
1. a kind of electric connector fretting wear detecting system based on Infrared Thermography Technology, which is characterized in that the system includes using
The plug-in and pull-off device of abrasive dust is generated in making electric connector to be detected pass through plug experiment and for obtaining electric connector plug to be detected
The detection device of Infrared Thermogram in experiment；
The plug-in and pull-off device includes installation pedestal, mobile platform, the speed of service for controlling plug-in and pull-off device and the control in direction
Unit, the driving unit for driving mobile platform to be moved forward and backward and clamping unit；The clamping unit includes for electricity to be clamped
Connector removes the jack fixture of the pin clamp of the contact pin of shell and the jack for clamping electrical connector, jack fixture with insert
Needle fixture is to dress of feeling at ease；Jack fixture is mounted on the front end of mobile platform；
The pin clamp is " L " type bending plate, including riser and bottom plate, wherein sets that there are one be electrically connected with to be detected on riser
The identical seam allowance of device contact pin insulator shape, and be evenly arranged with multiple screw threads in seam allowance peripheral circumferential on riser and lead to
Hole, covers left baffle ring and right baffle ring on the riser equipped with tapped through hole, and left baffle ring and right baffle ring surround circular ring shape, annulus it is interior
Diameter is consistent with the diameter of jack insulator, and annular groove is equipped on left baffle ring and right baffle ring, and the space of annular groove can hold just
The multiple tapped through holes received on riser；The braking for preventing electric connector from rotating is provided on the left baffle ring or right baffle ring
Key, the brake key weld together with corresponding baffle ring, brake key and the groove on electric connector contact pin insulator to be detected
Match；Electric connector to be detected is bolted on by left baffle ring and right baffle ring on riser；The bottom plate by bolt with
Installation pedestal is fixed together；
The detection device includes DC voltage stabilization and current stabilization source, for shooting the infrared thermal imagery in electric connector plug experiment to be detected
The thermal infrared imager and computer of figure, thermal infrared imager are connect with computer, and the electric connector to be detected and DC voltage-stabilizing are steady
Stream source is electrically connected, thermal infrared imager face electric connector to be detected.
2. the electric connector fretting wear detecting system according to claim 1 based on Infrared Thermography Technology, feature exist
In, be equipped on the mobile platform by show plug force data digital display type contact engaging and separating force based on.
3. the electric connector fretting wear detecting system according to claim 1 based on Infrared Thermography Technology, feature exist
In being equipped with and 8 tapped through holes and be equally distributed around seam allowance on the riser, the annular groove on left baffle ring or right baffle ring covers
Four tapped through holes of lid.
4. the electric connector fretting wear detecting system according to claim 1 based on Infrared Thermography Technology, feature exist
In the thickness for the circular ring shape that the left baffle ring and right baffle ring are formed is between electric connector contact pin insulator and jack insulator
Distance.
5. a kind of electric connector fretting wear detection method based on Infrared Thermography Technology, this method is appointed using claim 1-4
The electric connector fretting wear detecting system based on Infrared Thermography Technology described in one, it is electric when being heated using DC voltage stabilization and current stabilization source
The phenomenon for having wearing part different with surface temperature caused by the difference of no wearing part contact resistance in connector contact is known
The distribution situation for not going out abrasive dust, is as follows：
1) preparation of detected member：The metal shell for removing electric connector, the black outside the one of jack of electric connector is exhausted
Edge body, which amputates part, makes it expose a complete contact spring, then black in one layer of contact spring surface coating for needing to shoot
Ink simultaneously dries or pastes black tape, or thermal infrared imager and electric connector are placed in the same camera bellows；By above-mentioned processing
Conducting wire on electric connector welding afterwards after determining that electric connector has reached thermal equilibrium state, then electric connector is mounted on and is plugged
Plug experiment is carried out on device；
2) before the electric connector in plug being lain in a horizontal plane in thermal infrared imager, circuit is connected, adjusts DC voltage stabilization and current stabilization
Source output current size, makes electric connector reach normal operating conditions；
3) when detecting, thermal infrared imager is arranged according to the attribute of coating or adhesive material on the contact spring of electric connector to be detected
Parameter, parameter setting includes emissivity；
4) Infrared Thermogram of contact in thermal infrared imager shooting plug experiment is utilized；
5) by the infrared thermal image technique software installed on computer, setting segmented linear gray stretches and temperature range, to
Obtain the Infrared Thermogram of abrasive dust distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810324472.0A CN108535266B (en) | 2018-04-12 | 2018-04-12 | Electrical connector fretting wear detection system and method based on infrared thermal imaging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810324472.0A CN108535266B (en) | 2018-04-12 | 2018-04-12 | Electrical connector fretting wear detection system and method based on infrared thermal imaging technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108535266A true CN108535266A (en) | 2018-09-14 |
| CN108535266B CN108535266B (en) | 2024-01-19 |
Family
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| CN201810324472.0A Active CN108535266B (en) | 2018-04-12 | 2018-04-12 | Electrical connector fretting wear detection system and method based on infrared thermal imaging technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907150A (en) * | 2019-10-15 | 2020-03-24 | 杭州电子科技大学 | Robot connector reliability accelerated test method and device |
| CN111337368A (en) * | 2020-02-11 | 2020-06-26 | 杭州电子科技大学 | Method and device for testing abrasion derivative condition of single pin of robot electric connector |
| CN111521554A (en) * | 2020-05-09 | 2020-08-11 | 中国人民解放军海军航空大学岸防兵学院 | Portable electric connector appearance quality detection system |
| CN115951147A (en) * | 2022-12-29 | 2023-04-11 | 中国人民解放军海军航空大学 | Axial micro-motion detection device of pinhole electric connector |
| CN117761443A (en) * | 2024-02-20 | 2024-03-26 | 青岛铭青机电有限公司 | Test device and method for testing wear degradation of contact parts in electric connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2802470Y (en) * | 2005-06-17 | 2006-08-02 | 陈津 | Structure of high-voltage temp on-line monitoring photoelectric change contact box |
| CN104819839A (en) * | 2015-05-20 | 2015-08-05 | 河北工业大学 | Electric connector contact element plug-pull feature tester |
| US20160252464A1 (en) * | 2013-10-18 | 2016-09-01 | Saga University | Cracking detection system and cracking detection method |
| CN106153201A (en) * | 2015-04-20 | 2016-11-23 | 济南大学 | A kind of method of real-time in metal frictional abrasion self-repair procedure |
| CN206627567U (en) * | 2017-03-28 | 2017-11-10 | 浙江理工大学 | A kind of test device of electric connector contact contact resistance in swapping process |
-
2018
- 2018-04-12 CN CN201810324472.0A patent/CN108535266B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2802470Y (en) * | 2005-06-17 | 2006-08-02 | 陈津 | Structure of high-voltage temp on-line monitoring photoelectric change contact box |
| US20160252464A1 (en) * | 2013-10-18 | 2016-09-01 | Saga University | Cracking detection system and cracking detection method |
| CN106153201A (en) * | 2015-04-20 | 2016-11-23 | 济南大学 | A kind of method of real-time in metal frictional abrasion self-repair procedure |
| CN104819839A (en) * | 2015-05-20 | 2015-08-05 | 河北工业大学 | Electric connector contact element plug-pull feature tester |
| CN206627567U (en) * | 2017-03-28 | 2017-11-10 | 浙江理工大学 | A kind of test device of electric connector contact contact resistance in swapping process |
Non-Patent Citations (2)
| Title |
|---|
| MORAN, J等: "Low friction and wear on non-lubricated connector contact surfaces", ELECTRICAL CONTACTS-2004: PROCEEDINGS OF THE 50TH IEEE HOLM CONFERENCE ON ELECTRICAL CONTACTS/THE 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL CONTACTS, pages 263 - 266 * |
| 牛玉新: "基于红外热成像技术的电力设备检修与维护探讨", 科技创业家, vol. 6, pages 97 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907150A (en) * | 2019-10-15 | 2020-03-24 | 杭州电子科技大学 | Robot connector reliability accelerated test method and device |
| CN111337368A (en) * | 2020-02-11 | 2020-06-26 | 杭州电子科技大学 | Method and device for testing abrasion derivative condition of single pin of robot electric connector |
| CN111337368B (en) * | 2020-02-11 | 2023-02-28 | 杭州电子科技大学 | Method and device for testing abrasion derivative condition of single pin of robot electric connector |
| CN111521554A (en) * | 2020-05-09 | 2020-08-11 | 中国人民解放军海军航空大学岸防兵学院 | Portable electric connector appearance quality detection system |
| CN115951147A (en) * | 2022-12-29 | 2023-04-11 | 中国人民解放军海军航空大学 | Axial micro-motion detection device of pinhole electric connector |
| CN117761443A (en) * | 2024-02-20 | 2024-03-26 | 青岛铭青机电有限公司 | Test device and method for testing wear degradation of contact parts in electric connector |
| CN117761443B (en) * | 2024-02-20 | 2024-05-03 | 青岛铭青机电有限公司 | Test device and method for testing wear degradation of contact parts in electric connector |
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