CN106324468A - IGBT module structure reliability testing device having video monitoring function - Google Patents
IGBT module structure reliability testing device having video monitoring function Download PDFInfo
- Publication number
- CN106324468A CN106324468A CN201610815514.1A CN201610815514A CN106324468A CN 106324468 A CN106324468 A CN 106324468A CN 201610815514 A CN201610815514 A CN 201610815514A CN 106324468 A CN106324468 A CN 106324468A
- Authority
- CN
- China
- Prior art keywords
- module
- support frame
- upper support
- igbt
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2601—Apparatus or methods therefor
-
- 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
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2642—Testing semiconductor operation lifetime or reliability, e.g. by accelerated life tests
-
- 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
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2648—Characterising semiconductor materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gear Transmission (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention relates to an IGBT module structure reliability testing device having a video monitoring function. The IGBT module structure reliability testing device comprises a power supply module, a telescopic module, an intelligent control module, a sliding module, a rotating module, and an acquisition module. The power supply module is connected with other modules to provide electric energy. The intelligent control module is connected with the telescopic module, the sliding module, the rotating module, and the acquisition module to realize a test control function. The IGBT module structure reliability testing device is advantageous in that the design is reasonable; the constant changing of the internal chip, the solder layer, and the copper layer of the IGBT module during a testing process is acquired by adopting a visual sensor; the corresponding changing of the corresponding parts is determined, and the gradual changing of the internal structure of the IGBT is discovered, and after the IGBT loses efficacy, the part causing the failure of the IGBT is determined.
Description
Technical field
The invention belongs to power electronic devices detection technique field, a kind of IGBT mould with video surveillance function
Block structure reliability test.
Background technology
Insulated gate bipolar transistor (IGBT) is by BJT (double pole triode) and MOS (insulating gate type field effect tube)
The compound full-control type voltage driven type power semiconductor of composition, IGBT device combines two kinds of devices of MOSFET and GTR
Advantage, not only drive simple, power grade high, power consumption is little, and saturation pressure reduces, Heat stability is good.
IGBT module is by specific by IGBT (insulated gate bipolar transistor chip) and FWD (fly-wheel diode chip)
Circuit bridge encapsulation modularized semiconductor product.IGBT module has energy-conservation, easy for installation and scattered heat-staple spy
Point, and IGBT module can directly apply in various test platform.
High-power IGBT module the most all uses encapsulating structure, and igbt chip is welded on copper base, and by solder layer and
The multiple structures such as DBC ceramic layer are welded on base plate, and pour into a mould encapsulating material in multiple structure.Such as model is
The IGBT module of the integral type of MMG75SR120B, it is divided into external structure and internal structure, and external structure includes the resin of plastic packaging
Shell, resin enclosing cover, main terminal, auxiliary terminal and insulated substrate；Internal structure include Metal Substrate, igbt chip, FWD chip and
Cast encapsulation material (silicon).
At present, IGBT is widely used in the fields such as various field, such as high ferro, light rail, Switching Power Supply, lighting circuit,
In above-mentioned application, running voltage and the electric current of IGBT are the most relatively large, cause the power consumption also can be relative with the average junction temperature of chip
The highest, simultaneously in order to control the junction temperature of IGBT, understand cooling repeatedly and heating, make IGBT be chronically at temperature fluctuation work frequently
Under the conditions of work.Owing to generally using the mode of bonding wire between the chip in IGBT module and chip, between layers of copper and chip
It is attached, and key silk, chip surface metal level, layers of copper all take different materials, therefore, the thermal expansion system of various materials
The thermal stress that number is different, can bear is different.And multiple structure is welded to together, so during temperature fluctuation,
The meeting that thermal coefficient of expansion is little is stretched, and is i.e. stretched stress, and the big meeting of thermal coefficient of expansion is compressed, and then is pressed
Stress under compression.Along with rising and falling of temperature, IGBT module can be chronically in the change repeatedly of thermal stress, easily causes each layer material
The mutation of material, causes the distortion of the heat stability of IGBT, electrical characteristic, and the reduction of IGBT module reliability, even occurs tired
Labor lost efficacy.Generally, the position that IGBT module is easiest to lose efficacy is at solder layer, key silk and chip upper surface metal
Layer, topmost failure mode has solder layer to lose efficacy, key silk lost efficacy and metal level lost efficacy.
Further, since the temperature of IGBT module is in constantly change, constantly the temperature of fluctuation can make thermal stress to solder layer
Repeated stock, the place that the shear stress that solder interlayer produces can cause solder layer weak produces trickle crackle, in thermal stress
Constant impingement under, these trickle crackles can gradually extend, and causes solder layer that layering and cavitation occur, thus causes core
There is hot-spot phenomenon in sheet, and then cause IGBT module to lose efficacy.Chip within IGBT module and chip, chip and layers of copper
Between general use bonding wire to connect, all take due to key silk, chip surface metal level, layers of copper is different materials, so
The thermal coefficient of expansion of various materials is different, and constantly the temperature of fluctuation can make at thermal stress repeated stock bonding, thus is easily caused
Key silk is peeled off or warpage departs from pad, when part key silk is peeling-off or warpage departs from pad phenomenon, and whole electric currents can be concentrated
On remaining conducting key silk, even there is key silk fusing phenomenon, and then IGBT module lost efficacy.
At present, in carrying out IGBT module reliability test, it is common that in using naked eyes mode artificial observation IGBT module
The key silk in portion, solder layer, layers of copper situation of change, it is impossible to accurately observe and record whole process of the test, it is difficult to determining IGBT module
Failure site.
Summary of the invention
It is an object of the invention to overcome the deficiency of existing design, it is provided that a kind of IGBT module with video surveillance function
Structural reliability assay device, it records IGBT module in process of the test by vision sensor, the weldering of its internal structure
Being continually changing of the bed of material and key silk, utilize vision sensor by collect about IGBT module internal structure in process of the test not
The video pictures of disconnected change passes to computer, utilize computer system analysis during IGBT lost efficacy, IGBT module
The concrete difference of real-time status and initial acquisition state of internal structure, can clearly determine the progressively change of IGBT internal structure
Change, and can clearly determine, after IGBT lost efficacy, the position causing it to lose efficacy.
The present invention solves it and technical problem is that and take techniques below scheme to realize:
A kind of IGBT module structural reliability assay device with video surveillance function, including power module, flexible mould
Block, intelligent control module, sliding block, rotating module and acquisition module；Described power module is connected with other modules offer
Electric energy, described intelligent control module is connected with flexible module, sliding block, rotating module and acquisition module and realizes controlling test
Function；
Described flexible module includes that the first module and second of stretching is stretched module, and the described first module of stretching includes being arranged on
The separate support frame of both sides, sliding block rear end, this separate support frame includes the upper support of bracing frame shell and inside thereof
Frame, lower bracing frame, regulation connecting rod；Upper support frame and lower bracing frame are linked together by regulation connecting rod and are packed in device pedestal
On, described second stretch module include electric drive hydraulic thruster, connect pedestal, described electric drive hydraulic thruster is symmetrically mounted on linker
On seat, this connection pedestal is arranged on the bottom of sliding block front end；
Described sliding block includes the first motor, the second motor, the machinery arm of force, sliding substrate, pulley, square fixing connection
Axle, it is rotationally connected axle, sliding platform；It is installed together with upper support frame respectively in machinery both sides, arm of force rear end；Described pulley has
Two pairs and linked together by the axle that is slidably connected respectively, connected by rotating shaft, equipped with rotating shaft outside rotating shaft between two pairs of pulleys
Shell, is provided with square fixed connection shaft on rotating shaft housing center point, and the first motor is arranged on inside square fixed connection shaft；
Outside equipped with being rotationally connected axle on the axle that is slidably connected between side roller, described in be rotationally connected on axle two control bars, institute be installed
State control bar side and connect the second motor；Described square fixed connection shaft, it is rotationally connected axle and is arranged on sliding platform, this slip
On stage+module sliding substrate between two pairs of pulleys；Described sliding substrate both sides respectively equipped with two dragging tracks, described two
Pulley is inlaid in dragging track respectively；
Described rotating module includes the first rotating module and the second rotating module；Outside described first rotating module includes rotating
Shell and the 3rd motor being arranged in rotation case, machine carousel, profile of tooth rotating shaft, the 3rd described motor connects profile of tooth rotating shaft,
This profile of tooth rotating shaft is arranged in machine carousel, and described first rotating module upper end is connected bottom one end of the machinery arm of force, should
First rotating module lower end is connected with being connected pedestal；Described second rotating module include the 4th motor, band gear spline axle, two
To spline, solid mechanical axle, worm and gear, square fixed station, spring and transmission band, described band gear spline axle and the 4th motor
Be connected, a pair spline centered by band gear spline axle gear symmetrically form be contained on band gear spline axle, described
Equipped with another to spline on solid mechanical axle, its position is corresponding with the spline position on band gear spline axle and passes through transmission band
Being connected, described worm and gear top is meshed with the gear on band gear spline axle, and described square fixed station side is contained in worm gear
The bottom of worm screw, described square fixed station opposite side is equipped with two springs；
Described intelligent control module includes that one-chip computer module and computer, described acquisition module include vision sensor, should
Vision sensor is arranged on connection pedestal lower end, and the input of this vision sensor connects the one-chip computer module of intelligent control module
Outfan, the outfan of this vision sensor connects the computer input end of intelligent control module.
Described power module includes accumulator, relay, start-stop button, and it is controlled that the outfan of this accumulator connects relay
One end of circuit, the other end of this relay controlled circuit and the feeder ear of intelligent control module, the feeder ear of sliding block, turns
The feeder ear of dynamic model block, the second feeder ear stretching the feeder ear of module and acquisition module connect, and described start-stop button connects
Control relay circuit side.
Described upper support frame includes upper support frame left part and upper support frame right part；Upper support frame left part is provided with support
Encapsulated holes, fixing draw-in groove in midair and the first hole, location, upper support frame right part is provided with support encapsulation tooth, fixing full empty calorie groove and
Second hole, location；Described fixing draw-in groove in midair is arranged on the top half of upper support frame left part, and the first described hole, location is arranged
In the latter half of upper support frame left part, described fixing full empty calorie groove is arranged on the top half of upper support frame right part, described
The second hole, location be arranged on the latter half of upper support frame right part, described upper support frame left part passes through with upper support frame right part
The support encapsulated holes of surrounding links together with support encapsulation tooth.
The installation relation of described upper support frame and lower bracing frame is: be provided with two row fixed jacks, two row on regulation connecting rod
The relative distance of fixed jack is identical with the relative distance of duplex bolt, and upper support frame is with lower bracing frame by the regulation of both sides even
Bar and a pair duplex bolt and opposing nut thereof are fixed up.
The described machinery arm of force is provided with arm of force hollow hole, and above-mentioned arm of force hollow hole is arranged in the machinery arm of force two at a certain distance
The middle part of side.
The described machinery arm of force with the installation relation of upper support frame is: be mounted in mechanical both sides, arm of force rear end a pair built-in
Fixed gear plate right part, built-in fixed gear plate left part, equal on built-in fixed gear plate right part surface and built-in fixed gear plate left part surface
It is disposed with fixing connecting hole；Described built-in fixed gear plate right part is embedded in upper support frame right part, and described built-in fixed gear plate is left
Portion is embedded in upper support frame left part.
Described acquisition module also includes LED bulb, photoconductive resistance and corresponding drive circuit；Described photoconductive resistance is arranged on
Vision sensor side, the one-chip computer module that this photoconductive resistance is connected to intelligent control module by corresponding drive circuit inputs
End；Described LED bulb is installed in the centre position connecting pedestal in an annular manner, and this LED bulb is connected to Based Intelligent Control mould
The one-chip computer module outfan of block.
Described intelligent control module include microcomputer, one-chip computer module and the light emitting diode of three different colours and
Its related circuit, the input of one-chip computer module connects the outfan of computer, and the outfan of one-chip computer module connects three two
Pole pipe and related circuit thereof.
Advantages of the present invention and good effect be:
1, the present invention uses normally opened relay that whole power supply is separated with device, and utilizes start-stop button to control relay
The break-make of device, and then control the power on/off of whole device, it is achieved that the function of starter at any time during test, and in the mistake of test
In journey can according to the start and stop of test requirements document and individual's scheme determination device whether, it is to avoid the longtime running of whole device, subtract
Lack unnecessary loss, extend the service life of whole device.
2, the mode that the present invention utilizes separate support frame to combine with regulation connecting rod realizes the height control to whole device
Make, and regulation connecting rod is fixed on the both sides of bracing frame by the form using duplex bolt and nut to combine, and has not only acted as good
Good fixation, and use duplex bolt to improve the weight capacity of whole device, and utilize bracing frame shell to protect
Whole bracing frame decreases the probability by mistake being touched malfunction, has simultaneously worked as certain beauty function.
3, the present invention uses the arm of force of semi-hollow to decrease the heavy burden of whole device, decreases relative pressure for whole device
Power, utilizes the fastness of arm of force base to set up sliding substrate bottom it simultaneously, and in sliding substrate both sides respectively equipped with two cunnings
Row track, provides sound assurance for the reliability slided, and the foundation of the most a plurality of sliding rail is of value to the smoothness of slip
Property, it is to avoid in sliding process because track resistance is big overall defect out of service.
4, the present invention uses the axle that is slidably connected to connect a pair pulley, and is being slidably connected on axle equipped with being rotationally connected axle, with
Time in the middle of the two pairs of pulleys, install square fixed connection shafts, make square fixed connection shaft be rotationally connected with both sides and together bear bottom
Device bring the pulling force of whole sliding block, make whole sliding block can disperse stress, decrease and concentrate stress to bring
Destructiveness and potential threat.
5, the present invention utilizes the vantage point being rotationally connected axle, is respectively arranged with control being rotationally connected at the top front and back position of axle
Bar processed, after whole sliding block is out of service, drive and control of electric machine bar stretches out from being rotationally connected inside axle, and gear is before pulley
Rear both sides, prevent accidental slight the sliding of wave zone movable pulley, and the stop position for pulley serves reinforcement effect, and is
The reliability of whole device is made that certain guarantee.
6, the present invention uses electric drive hydraulic thruster to realize the automatic telescopic of harvester, after pulley is effectively stopped, electronic
Hydraulic push rod stretches to the active length specified according to the instruction of device, and after work completes, electric drive hydraulic thruster can be certainly
Move and shrink, decrease artificial flexible workload, save artificial stretching the required time simultaneously, laid jail for Real-time Collection
Solid basis.
7, the present invention uses motor, machine carousel and profile of tooth rotating shaft to form rotational structure, in data acquisition, motor
Rotation can drive the rotation of whole rotating mechanism, it is achieved that 360 degree of all-direction rotations of data acquisition, make data acquisition
Result is more comprehensive, more accurately, improves the reliability of whole device.
8, the present invention uses vision sensor initially to run shape to gather IGBT module inside chip, solder layer and layers of copper
State, utilizes vision sensor to capture clear, fine and smooth image, and record IGBT module inside chip, solder layer and layers of copper are in examination
Being continually changing during testing, and initial running status and real-time running status are made contrast, determine which position occurs
Corresponding change, utilizes effective combination of vision sensor and computer, forms the real-time Transmission of image, decrease image and deposit
The pressure of storage, utilizes the key silk within the corresponding IGBT module of diode of three different colours, solder layer, layers of copper simultaneously, when
When different concrete positions change, the diode that color is different starts luminescence, sends warning signal, makes the reliable of IGBT module
Property shows more intuitively.
9, the present invention utilizes the light intensity of photoconductive resistance sensing IGBT module local environment, when light intensity deficiency,
Photoconductive resistance passes the signal to one-chip computer module by drive circuit, and one-chip computer module assigns instruction, makes LED bulb connect and sends out
Light, improves the whole device light intensity when gathering IGBT module internal structure, it can be ensured that vision sensor is excellent
Light intensity under gather video image, improve the quality of adopted video image, improve the reliability of whole device simultaneously.
10, the present invention utilize one-chip computer module to set the collection period of vision sensor, can be according to the operation of IBGT
Degree, or the measure of precision that the IGBT internal structure gathered as required specifically changes, change the video of vision sensor at any time
Image acquisition period, this not only reduces the video image acquisition that whole device is unnecessary, ensure that the video of necessity simultaneously
Image acquisition, it is ensured that the effective monitoring to IGBT module reliability.
11, the present invention uses transmission band that the spline on the spline on splined shaft and solid mechanical axle corresponding thereto is connected
Connect, and make worm and gear be meshed with the gear on splined shaft, it is achieved that whole harvester is in gatherer process, by top
Gather the rotation gathered to both sides, and on harvester, be mounted with spring, reduce harvester in rotation process and born
Actual stress, simultaneously can stretch certain length at harvester while both sides rotate, it is ensured that harvester is passing
Can remain perpendicular to the direction of horizontal plane when that dynamic band tightening up, the collection for data provides sound assurance.
Accompanying drawing explanation
Fig. 1 is the connection diagram of the present invention；
Fig. 2 is the overall structure axonometric chart of the present invention；
Fig. 3 is the overall structure front view of the present invention；
Fig. 4 is that the first of the present invention stretches the structural representation of module；
Fig. 5 is the internal and hollow arm structure schematic diagram of bracing frame of the present invention；
Fig. 6 is the sliding block structural representation of the present invention；
Fig. 7 is the structural representation of second rotating module of the present invention；
Wherein, 1: power module, 2: intelligent control module, 3: flexible module, 4: sliding block, 5: rotating module, 6: adopt
Collection module, 7: device pedestal, 8: bolt of lower base, 301: the first stretch module, and stretch module at 302: the second, and 401: the machinery arm of force,
402: sliding substrate, 403: pulley, 404: rotating shaft shell, 405: square fixed connection shaft, 406: be rotationally connected axle, 407: slide
Platform, 408: control bar, 409: dragging track, 501: the first rotating modules, 502: the second rotating modules, 601: visual sensing
Device, 3011: bracing frame shell, 3012: upper support frame, 3013: lower bracing frame, 3014: regulation connecting rod, 3015: fixed jack,
3016: duplex bolt, 3017: nut, 3021: electric drive hydraulic thruster, 3022: connection pedestal, 3023, fixing clip, 4011: power
Arm hollow hole, 4012: built-in fixed gear plate right part, 4013: built-in fixed gear plate left part, 4014: fixing connecting hole, 30121: on
Bracing frame left part, 30122: upper support frame right part, 30123: support encapsulated holes, 30124: support encapsulation tooth, 30125: fixing half
Empty calorie groove, 30126: fixing full empty calorie groove, 30127: the first holes, location, 30128: the second holes, location, 5011: rotation case,
5021: telescopic arm shell, 5022: transmission band, 5023: band gear spline axle, 5024: solid mechanical axle, 5025: gear, 5026:
Spline, 5027: worm and gear, 5028: square fixed station, 5029: spring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described:
A kind of IGBT module structural reliability assay device with video surveillance function, as it is shown in figure 1, include power supply mould
Block 1, intelligent control module 2, sliding block 4, rotating module 5, acquisition module 6 and flexible module 3.Described power module 1 is
Other modules of whole device provide electric energy.Described intelligent control module 2 includes one-chip computer module and computer, Based Intelligent Control
In module 2, the outfan of one-chip computer module connects the input of sliding block 4, and sliding block 4 passes through pulley on dragging track
The mode slided exports；The input of described rotating module 5 connects the outfan of one-chip computer module in intelligent control module 2,
The form output that the output of this rotating module 5 rotates in particular directions with the first rotating module and the second rotating module；Described
The input of acquisition module 6 connect the outfan of one-chip computer module in intelligent control module 2, the outfan of acquisition module 6 is even
Connect the input of intelligent control module 2 Computer.Described flexible module 3 includes that the first module 301 and second of stretching is stretched mould
Block 302, the stretch input of module 302 of described second connects the outfan of one-chip computer module in intelligent control module 2, and second
Flexible module 302 is with the form output elongating or shortening back original state of electric drive hydraulic thruster.
Described power module 1 includes accumulator, relay, start-stop button, and the outfan connection of described accumulator continues
One end of electric controlled circuit, the described feeder ear of intelligent control module 2, the feeder ear of sliding block 4, rotating module 5
Feeder ear, the second feeder ear stretching the feeder ear of module 302 and acquisition module 6 connect the other end of relay controlled circuit,
Described start-stop button connects control relay circuit side.
As shown in Fig. 2,3,4,5, the first module 301 of stretching includes being arranged on the separate support of sliding block 401 both sides
Frame, this separate support frame include bracing frame shell 3011 and be arranged on the upper support frame 3012 within bracing frame shell 3011,
Lower bracing frame 3013, regulation connecting rod 3014, fixed jack 3015, duplex bolt 3016 and nut 3017.Described upper support frame
3012 expand into upper support frame left part 30121 and upper support frame right part 30122；Upper support frame left part 30121 is provided with support
Encapsulated holes 30123, fixing draw-in groove in midair 30125 and the first hole 30127, location, be provided with support on upper support frame right part 30122
Encapsulation tooth 30124, fixing full empty calorie groove 30126 and the second hole 30128, location.Described fixing draw-in groove 30125 in midair is arranged on
The top half of upper support frame left part 30121, the first described hole 30127, location is arranged on upper support frame left part 30121 times
Half part, described fixing full empty calorie groove 30126 is arranged on the top half of upper support frame right part 30122, and described second is fixed
Hole 30128, position is arranged on the latter half of upper support frame right part 30122, described upper support frame left part 30121 and upper support frame
Right part 30122 is linked together with support encapsulation tooth 30124 by the support encapsulated holes 30123 of surrounding, is together to form and props up
Support 3012, and the fixing draw-in groove in midair 30125 of upper support frame left part 30121 is complete with fixing of upper support frame right part 30122
Empty calorie groove 30126 is contained in upper support frame left part and right part in a symmetrical, is positioned at the first hole, location of upper support frame left part 30121
30127 is corresponding with the second hole 30128, location being positioned at upper support frame right part 30122.Regulation connecting rod 3014 is provided with two row
Fixed jack 3015, the relative distance of two row fixed jacks 3015 is identical with the relative distance of duplex bolt 3016, and described is upper
Bracing frame 3012 and lower bracing frame 3013 are by the regulation connecting rod 3014 of both sides and a pair duplex bolt and opposing nut 3017 thereof
It is fixed up, and is contained on device pedestal 7 by bolt of lower base 8.Described second module 302 of stretching includes electric drive hydraulic thruster
3021, connecting pedestal 3022 and fixing clip 3023, described electric drive hydraulic thruster 3021 in a symmetrical manner and passes through fixing
Clip 3023 is fixed on connection pedestal 3022, and this connection pedestal 3022 is arranged on below sliding block one end.
As shown in Fig. 2,5,6, sliding block 4 include the first motor, the second motor, machinery the arm of force 401, sliding substrate 402,
Pulley 403, rotating shaft shell 404, square fixed connection shaft 405, it is rotationally connected axle 406, sliding platform 407, controls bar 408 and sliding
Row track 409.Being provided with arm of force hollow hole 4011 on the machinery arm of force 401, this arm of force hollow hole 4011 is arranged at a certain distance
The middle part of the machinery arm of force 401 both sides, is mounted on a pair built-in fixed gear plate right part in the both sides, one end of the machinery arm of force 401
4012, built-in fixed gear plate left part 4013, uniform on built-in fixed gear plate right part 4012, built-in fixed gear plate left part 4013 surface
It is equipped with fixing connecting hole 4014.Described built-in fixed gear plate right part 4012 is embedded in the fixing complete empty of upper support frame right part 30122
In draw-in groove 30126, described built-in fixed gear plate left part 4013 is embedded in upper support frame left part 30125, by upper support frame left part
30121 achieve fixing and being connected of the machinery arm of force 401 and upper support frame 3012 with the encapsulation of upper support frame right part 30122.Institute
Stating pulley 403 and have two right, one pair of which pulley 403 is connected by first axle that is slidably connected, and pulley is slidably connected by another by second
Axle connects, and is connected by rotating shaft between two pairs of pulleys, and rotating shaft shell 404 is fixed in rotating shaft, the first of described outside pulley room
Be slidably connected on axle equipped with being rotationally connected axle 406, described in be rotationally connected the top of axle 406 equipped with two control bars 408, described
Controlling bar 408 side and connect the second motor, described square fixed connection shaft 405 is arranged on rotating shaft shell 404 central point, institute
It is internal that the first motor stated is arranged on square fixed connection shaft 405.Described square fixed connection shaft 405, it is rotationally connected axle 406 and pacifies
Being contained on sliding platform 407, this sliding platform 407 is arranged on the sliding substrate 402 between two pairs of pulleys；Described slip base
Plate 402 both sides are respectively equipped with two dragging tracks 409, and it is internal that described two pairs of pulleys 403 are inlaid in dragging track 409 respectively.
As shown in Fig. 3 and Fig. 7, rotating module 5 includes the first rotating module 501 and the second rotating module 502.Described
One rotating module 501 includes rotation case 5011 and the 3rd motor being arranged in rotation case, machine carousel, profile of tooth rotating shaft,
The 3rd described motor connects profile of tooth rotating shaft, and described profile of tooth rotating shaft is arranged in machine carousel, described first rotating module 501
Upper end is connected bottom one end of the mechanical arm of force 401 of sliding block 4, this first rotating module 501 lower end be connected pedestal
3022 are connected.The second described rotating module 502 includes the 4th motor, 5023, two pairs of splines 5026 of band gear spline axle, consolidates
Determine mechanical axis 5024, worm and gear 5027, square fixed station 5028, spring 5029 and transmission band 5022, described band gear flower
Key axle 5023 is connected with the 4th motor, a pair spline symmetrically form centered by band gear spline axle 5023 gear 5026
It is contained on band gear spline axle 5023, equipped with another to spline on described solid mechanical axle 5024, its position and band gear flower
Spline position on key axle 5023 is corresponding, and is connected by transmission band 5022, described worm and gear 5027 top and band tooth
Gear on wheel splined shaft 5025 is meshed, and described square fixed station 5028 side is contained in the bottom of worm and gear 5027, institute
Square fixed station 5028 opposite side stated is equipped with two springs 5029.
As it is shown on figure 3, acquisition module 6 includes vision sensor 601, LED bulb, photoconductive resistance and drives electricity accordingly
Road.Described acquisition module 6 is arranged on connection pedestal 3022 lower end, and the input of this vision sensor 601 connects Based Intelligent Control mould
The one-chip computer module outfan of block 2, the outfan of this vision sensor 601 connects the computer input end of intelligent control module 2.
Described photoconductive resistance is arranged near vision sensor 601, and this photoconductive resistance is connected to intelligence by corresponding drive circuit
The one-chip computer module input of control module 2.Described LED bulb is installed in the interposition connecting pedestal 3022 in an annular manner
Putting, this LED bulb is connected to the one-chip computer module outfan of intelligent control module 2.
Described intelligent control module include microcomputer, one-chip computer module, three light emitting diodes (three diodes
Color is respectively red, yellow and green) and related circuit, the input of one-chip computer module connects the outfan of computer,
The outfan of one-chip computer module connects three diodes and related circuit thereof.The diode utilizing three different colours is corresponding
Key silk within IGBT module, solder layer, layers of copper, when the concrete position of difference changes, the diode that color is different starts
Luminescence, sends warning signal, makes the reliability of IGBT module show more intuitively
In the present embodiment, one-chip computer module selects model to be the one-chip computer module of MCS-51, and brand is selected in photoconductive resistance
Producing model for Risym is the photoconductive resistance of 5506, and cmucam5 the 5th generation vision sensor selected by vision sensor.
The installation and application of the present invention is:
(1) secure mounting arrangements pedestal, the height of regulation separate support frame so that it is keep optimum height, the most optimal
The position being adjusted to the vision sensor IGBT inside chip away from required monitoring is 30cm, can change adjust according to actual environment
The height of joint；
The present embodiment illustrates as a example by the IGBT module of the integral type of MMG75SR120B.Owing to selling on open market
The IGBT module sold is all packaged, in order to test needs, needs to open IGBT module package casing in process of the test,
Remove the silica gel of its internal cast, good to its inside chip, solder layer and layers of copper is presented.
(2) on-test, pressing start button, package unit is charged, and device brings into operation；
(3) under the drive of the first motor, rotating shaft starts to rotate, and the assembly pulley of rotating shaft both sides starts to slide, the most square
Fixed connection shaft, it is rotationally connected axle and is driven and moves ahead, be fixed on the sliding platform below them and move ahead the most together, when vision passes
Sensor collects the internal structure of the IGBT module being below, and guarantees that the whole picture of IGBT internal structure all can be adopted
Collection then, to the first motor power-off, slides and stops, and the second drive and control of electric machine bar launches from being rotationally connected axle interior parallel, control
Bar processed is at pulley the front that rests on pulley and rear position；
(4) when above vision sensor is in IGBT module and gather data complete time, electric drive hydraulic thruster start elongation,
When electric drive hydraulic thruster elongation is complete, the 4th driven by motor band gear spline axle rotates, and drives worm and gear to transport downwards simultaneously
Dynamic, whole acquisition module starts to move downward, and is simultaneously connected with the biography of band gear spline axle upper spline and solid mechanical axle upper spline
Dynamic band starts to shrink at, and the position of vision sensor is gradually transferred to vertical level direction by level downwards, and spring is opened simultaneously
Beginning to bend, until transmission band full retraction is complete, the 4th motor stops, and the 3rd driven by motor rotatable platform starts to rotate, vision
Sensor starts to gather data, the video image that vision sensor is collected along the surrounding of IGBT module under the drive of turntable
Delivered to by USB interface in the computer of intelligent control module；
(5) after vision sensor completes the collection of 360 degree, the internal structure side to IBGT module, the 4th driven by motor band
Gear spline axle rotates backward, and drives worm and gear to move upward simultaneously, and whole acquisition module starts to move upward, and is simultaneously connected with
Transmission band with gear spline axle upper spline Yu solid mechanical axle upper spline starts elongation, and the position of vision sensor is by vertical water
In-plane starts gradually to transfer level in downward direction；
(6) vision sensor complete one video image acquisition week after date, can according to set video image acquisition week
Phase, determine the time next time gathered.
When the insufficient light of experimental enviroment, one-chip computer module is transmitted by the signal of photoconductive resistance, starts and is positioned at vision
LED bulb above sensor, it is ensured that vision sensor gathers the when of video image bright and clear, the video image collected
The most clear.
It is emphasized that embodiment of the present invention is illustrative rather than determinate, bag the most of the present invention
Include the embodiment being not limited to described in detailed description of the invention, every by those skilled in the art according to technical scheme
Other embodiments drawn, also belong to the scope of protection of the invention.
Claims (8)
1. the IGBT module structural reliability assay device with video surveillance function, it is characterised in that: include power supply mould
Block, flexible module, intelligent control module, sliding block, rotating module and acquisition module；Described power module and other module phases
Connecting and provide electric energy, described intelligent control module is connected with flexible module, sliding block, rotating module and acquisition module realization
Controlling test function；
Described flexible module includes that the first module and second of stretching is stretched module, and the described first module of stretching includes being arranged on slip
The separate support frame of both sides, module rear end, this separate support frame include bracing frame shell and the upper support frame of inside thereof, under
Bracing frame, regulation connecting rod；Upper support frame and lower bracing frame are linked together by regulation connecting rod and are packed on device pedestal, institute
State second stretch module include electric drive hydraulic thruster, connect pedestal, described electric drive hydraulic thruster be symmetrically mounted on connection pedestal on,
This connection pedestal is arranged on the bottom of sliding block front end；
Described sliding block include the first motor, the second motor, machinery the arm of force, sliding substrate, pulley, square fixed connection shaft,
It is rotationally connected axle, sliding platform；It is installed together with upper support frame respectively in machinery both sides, arm of force rear end；It is two right that described pulley has
And linked together by the axle that is slidably connected respectively, connected by rotating shaft between two pairs of pulleys, equipped with rotating shaft shell outside rotating shaft,
Being provided with square fixed connection shaft on rotating shaft housing center point, the first motor is arranged on inside square fixed connection shaft；Outside
Equipped with being rotationally connected axle on the axle that is slidably connected between side roller, described in be rotationally connected on axle two control bars, described control be installed
Bar side processed connects the second motor；Described square fixed connection shaft, it is rotationally connected axle and is arranged on sliding platform, this sliding platform
It is arranged on the sliding substrate between two pairs of pulleys；Described sliding substrate both sides are respectively equipped with two dragging tracks, and described two to cunning
Wheel is inlaid in dragging track respectively；
Described rotating module includes the first rotating module and the second rotating module；Described first rotating module include rotation case and
The 3rd motor that is arranged in rotation case, machine carousel, profile of tooth rotating shaft, the 3rd described motor connects profile of tooth rotating shaft, this tooth
Shape rotating shaft is arranged in machine carousel, and described first rotating module upper end is connected bottom one end of the machinery arm of force, and this is first years old
Rotating module lower end is connected with being connected pedestal；Described second rotating module include the 4th motor, band gear spline axle, two to flower
Key, solid mechanical axle, worm and gear, square fixed station, spring and transmission band, described band gear spline axle and the 4th motor are connected
Connect, a pair spline centered by band gear spline axle gear symmetrically form be contained on band gear spline axle, described is fixing
Equipped with another to spline on mechanical axis, its position is corresponding with the spline position on band gear spline axle and passes through transmission band phase
Even, described worm and gear top is meshed with the gear on band gear spline axle, and described square fixed station side is contained in worm gear snail
The bottom of bar, described square fixed station opposite side is equipped with two springs；
Described intelligent control module includes that one-chip computer module and computer, described acquisition module include vision sensor, this vision
Sensor is arranged on connection pedestal lower end, and the input of this vision sensor connects the one-chip computer module output of intelligent control module
End, the outfan of this vision sensor connects the computer input end of intelligent control module.
A kind of IGBT module structural reliability assay device with video surveillance function the most according to claim 1, its
Being characterised by: described power module includes accumulator, relay, start-stop button, the outfan of this accumulator connects relay quilt
One end of control circuit, the other end of this relay controlled circuit and the feeder ear of intelligent control module, the feeder ear of sliding block,
The feeder ear of rotating module, the second feeder ear stretching the feeder ear of module and acquisition module connect, and described start-stop button is even
Contact relay control circuit side.
A kind of IGBT module structural reliability assay device with video surveillance function the most according to claim 1, its
It is characterised by: described upper support frame includes upper support frame left part and upper support frame right part；Upper support frame left part is provided with and props up
Frame encapsulated holes, fixing draw-in groove in midair and the first hole, location, be provided with support encapsulation tooth, fixing full empty calorie groove on upper support frame right part
And second location hole；Described fixing draw-in groove in midair is arranged on the top half of upper support frame left part, and the first described hole, location sets
Putting the latter half at upper support frame left part, described fixing full empty calorie groove is arranged on the top half of upper support frame right part, institute
The second hole, location stated is arranged on the latter half of upper support frame right part, and described upper support frame left part leads to upper support frame right part
The support encapsulated holes crossing surrounding links together with support encapsulation tooth.
A kind of IGBT module structural reliability assay device with video surveillance function the most according to claim 1, its
It is characterised by: the installation relation of described upper support frame and lower bracing frame is: on regulation connecting rod, be provided with two row fixed jacks, two row
The relative distance of fixed jack is identical with the relative distance of duplex bolt, and upper support frame is with lower bracing frame by the regulation of both sides even
Bar and a pair duplex bolt and opposing nut thereof are fixed up.
A kind of IGBT module structural reliability assay device with video surveillance function the most according to claim 1, its
It is characterised by: the described machinery arm of force is provided with arm of force hollow hole, and above-mentioned arm of force hollow hole is arranged in the machinery arm of force at a certain distance
The middle part of both sides.
A kind of IGBT module structural reliability assay device with video surveillance function the most according to claim 1, its
It is characterised by: the described machinery arm of force with the installation relation of upper support frame is: be mounted on one to interior in machinery both sides, arm of force rear end
Put fixed gear plate right part, built-in fixed gear plate left part, on built-in fixed gear plate right part surface and built-in fixed gear plate left part surface
All it is disposed with fixing connecting hole；Described built-in fixed gear plate right part is embedded in upper support frame right part, described built-in fixed gear plate
Left part is embedded in upper support frame left part.
A kind of IGBT module structural reliability assay device with video surveillance function the most according to claim 1, its
It is characterised by: described acquisition module also includes LED bulb, photoconductive resistance and corresponding drive circuit；Described photoconductive resistance is installed
On vision sensor side, the one-chip computer module that this photoconductive resistance is connected to intelligent control module by corresponding drive circuit is defeated
Enter end；Described LED bulb is installed in the centre position connecting pedestal in an annular manner, and this LED bulb is connected to Based Intelligent Control
The one-chip computer module outfan of module.
A kind of IGBT module structural reliability assay device with video surveillance function the most according to claim 1, its
It is characterised by: described intelligent control module includes microcomputer, one-chip computer module and the light emitting diode of three different colours
And related circuit, the input of one-chip computer module connects the outfan of computer, and the outfan of one-chip computer module connects three
Diode and related circuit thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815514.1A CN106324468B (en) | 2016-09-12 | 2016-09-12 | IGBT module structure reliability test device with video monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815514.1A CN106324468B (en) | 2016-09-12 | 2016-09-12 | IGBT module structure reliability test device with video monitoring function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106324468A true CN106324468A (en) | 2017-01-11 |
| CN106324468B CN106324468B (en) | 2023-04-11 |
Family
ID=57787179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610815514.1A Active CN106324468B (en) | 2016-09-12 | 2016-09-12 | IGBT module structure reliability test device with video monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106324468B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298309A (en) * | 2018-10-26 | 2019-02-01 | 合肥工业大学 | IGBT solder layer status real time monitor device and method based on temperature gradient |
| CN112946451A (en) * | 2021-02-23 | 2021-06-11 | 全球能源互联网研究院有限公司 | IGBT device reliability test device, system and method for MMC |
| CN117807536A (en) * | 2024-02-27 | 2024-04-02 | 中铁上海工程局集团第七工程有限公司 | Optimization method for stress data acquisition in steel arch vertical rotation construction process |
| CN117807536B (en) * | 2024-02-27 | 2024-05-31 | 中铁上海工程局集团第七工程有限公司 | Optimization method for stress data acquisition in steel arch vertical rotation construction process |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060157457A1 (en) * | 2004-12-08 | 2006-07-20 | Matsushita Electric Industrial Co., Ltd. | Hybrid laser processing method and hybrid laser torch used in the method |
| CN203492148U (en) * | 2013-09-27 | 2014-03-19 | 广州珠峰能源科技有限公司 | GSM wireless communication high-definition video system based on motor control power-saving system |
| CN104251965A (en) * | 2014-09-24 | 2014-12-31 | 河北工业大学 | IGBT (insulated gate bipolar transistor) dynamic performance test device and operation method of IGBT dynamic performance test device |
| CN104932237A (en) * | 2014-03-19 | 2015-09-23 | 柯尼卡美能达株式会社 | Fixing apparatus and image-forming apparatus using the same |
| CN105206543A (en) * | 2014-05-26 | 2015-12-30 | 上海微电子装备有限公司 | Monitoring device and method of laser energy density |
| CN105242189A (en) * | 2015-10-13 | 2016-01-13 | 中国人民解放军海军工程大学 | IGBT health state monitoring method based on saturation voltage drop of emitter collector and voidage of solder layer |
| CN205333782U (en) * | 2016-02-03 | 2016-06-22 | 河北工业大学 | Three -sphase four -wire system electric wire netting broken string inspection device |
| CN105810470A (en) * | 2016-04-08 | 2016-07-27 | 河北工业大学 | Running state monitoring system for grounding knife switch in switch cabinet in power generation plant and substation chamber |
| CN205452080U (en) * | 2016-04-08 | 2016-08-10 | 河北工业大学 | Earthing knife -switch's actual position detection device in cubicle switch cabinet |
| CN206038843U (en) * | 2016-09-12 | 2017-03-22 | 河北工业大学 | Structure failure mode video monitoring system among IGBT reliability test |
-
2016
- 2016-09-12 CN CN201610815514.1A patent/CN106324468B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060157457A1 (en) * | 2004-12-08 | 2006-07-20 | Matsushita Electric Industrial Co., Ltd. | Hybrid laser processing method and hybrid laser torch used in the method |
| CN203492148U (en) * | 2013-09-27 | 2014-03-19 | 广州珠峰能源科技有限公司 | GSM wireless communication high-definition video system based on motor control power-saving system |
| CN104932237A (en) * | 2014-03-19 | 2015-09-23 | 柯尼卡美能达株式会社 | Fixing apparatus and image-forming apparatus using the same |
| CN105206543A (en) * | 2014-05-26 | 2015-12-30 | 上海微电子装备有限公司 | Monitoring device and method of laser energy density |
| CN104251965A (en) * | 2014-09-24 | 2014-12-31 | 河北工业大学 | IGBT (insulated gate bipolar transistor) dynamic performance test device and operation method of IGBT dynamic performance test device |
| CN105242189A (en) * | 2015-10-13 | 2016-01-13 | 中国人民解放军海军工程大学 | IGBT health state monitoring method based on saturation voltage drop of emitter collector and voidage of solder layer |
| CN205333782U (en) * | 2016-02-03 | 2016-06-22 | 河北工业大学 | Three -sphase four -wire system electric wire netting broken string inspection device |
| CN105810470A (en) * | 2016-04-08 | 2016-07-27 | 河北工业大学 | Running state monitoring system for grounding knife switch in switch cabinet in power generation plant and substation chamber |
| CN205452080U (en) * | 2016-04-08 | 2016-08-10 | 河北工业大学 | Earthing knife -switch's actual position detection device in cubicle switch cabinet |
| CN206038843U (en) * | 2016-09-12 | 2017-03-22 | 河北工业大学 | Structure failure mode video monitoring system among IGBT reliability test |
Non-Patent Citations (1)
| Title |
|---|
| 李玲玲 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298309A (en) * | 2018-10-26 | 2019-02-01 | 合肥工业大学 | IGBT solder layer status real time monitor device and method based on temperature gradient |
| CN109298309B (en) * | 2018-10-26 | 2021-02-09 | 合肥工业大学 | Method for monitoring IGBT solder layer in real time |
| CN112946451A (en) * | 2021-02-23 | 2021-06-11 | 全球能源互联网研究院有限公司 | IGBT device reliability test device, system and method for MMC |
| CN112946451B (en) * | 2021-02-23 | 2021-11-02 | 全球能源互联网研究院有限公司 | IGBT device reliability test device, system and method for MMC |
| CN117807536A (en) * | 2024-02-27 | 2024-04-02 | 中铁上海工程局集团第七工程有限公司 | Optimization method for stress data acquisition in steel arch vertical rotation construction process |
| CN117807536B (en) * | 2024-02-27 | 2024-05-31 | 中铁上海工程局集团第七工程有限公司 | Optimization method for stress data acquisition in steel arch vertical rotation construction process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106324468B (en) | 2023-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106324468A (en) | IGBT module structure reliability testing device having video monitoring function | |
| CN206759385U (en) | A kind of photovoltaic module automatic snow-melting defroster | |
| CN214667275U (en) | Infrared temperature monitoring device of power distribution cabinet | |
| CN101470449B (en) | Cooling control system and cooling control method | |
| CN103472327B (en) | A kind of anti-strong magnetic round-the-clock dry reactor on-Line Monitor Device and method | |
| CN206038843U (en) | Structure failure mode video monitoring system among IGBT reliability test | |
| CN101950169A (en) | Pumping unit controller, control method and system | |
| CN105322493A (en) | Ground wire ice melting automatic wiring device | |
| CN207304364U (en) | A kind of protective device of frequency converter | |
| CN206038844U (en) | IGBT malfunction index automatic check out system of walking | |
| CN208806253U (en) | Highly integrated electric-controlled plate and electric appliance | |
| CN203895925U (en) | Automatic wiring apparatus for ground wire deicing | |
| CN105429048B (en) | The light-weighted method of crusing robot and lightweight crusing robot of transmission line of electricity | |
| CN201960086U (en) | Liquid metal sheet manufacturing equipment | |
| CN101561125A (en) | Light-emitting diode module | |
| CN202939803U (en) | Multifunctional road traffic signal control machine | |
| CN106838278B (en) | A kind of heat-radiating integrated device of wind-driven generator wheel-box heating | |
| CN207233647U (en) | A kind of breaker heating unit and breaker with automatic open-close | |
| CN220084892U (en) | Display screen module high temperature aging testing device | |
| CN205923605U (en) | Fabrics with temperature adjusting function | |
| CN208316845U (en) | A kind of emergency cloth ball-handling of rotor cabin bi-motor belt transmission structure | |
| CN211125280U (en) | Air-cooled dry-type transformer | |
| CN207249044U (en) | A kind of insulation detection device for communicating under plum tube low temperature environment | |
| CN220603934U (en) | Intelligent terminal device that fuses of platform district | |
| CN209692896U (en) | The monitor camera of external light compensating lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |