CN103884310A - Test tool and test method for IGBT bottom board and radiator contact surface - Google Patents
Test tool and test method for IGBT bottom board and radiator contact surface Download PDFInfo
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- CN103884310A CN103884310A CN201210559715.1A CN201210559715A CN103884310A CN 103884310 A CN103884310 A CN 103884310A CN 201210559715 A CN201210559715 A CN 201210559715A CN 103884310 A CN103884310 A CN 103884310A
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Abstract
The invention discloses a test tool and test method for an IGBT bottom board and a radiator contact surface. The IGBT bottom board is arranged on a positioning device for positioning; an installation plate, the IGBT bottom board and the positioning device are arranged on the same center line to guarantee the accuracy of the detection; a driving device drives the IGBT bottom board to move upwards and contacts a height sensor so as to detect the planeness of the IGBT bottom board; and therefore, the qualified rate of the IGBT bottom board can be effectively detected; the IGBT bottom board can be guaranteed to be installed correctly later; the planeness of the IGBT bottom board which leaves the factory is allowed to meet requirements; the problem that an IGBT module fails and the like due to the poor planeness and incorrect installation is prevented; the production and usage cost is reduced; and meanwhile, good heat conductivity between the IGBT bottom board and a radiator is guaranteed; and operational reliability of the IGBT module is improved.
Description
Technical field
The invention belongs to IGBT modular design manufacturing technology field, be specifically related to test fixture and the method for testing of a kind of IGBT base plate and heating radiator surface of contact.
Background technology
IGBT(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) there is high-frequency, high voltage, large electric current, the especially easy performance characteristics that turns on and off, it is the most representative product of the Power Electronic Technique revolution for the third time of generally acknowledging in the world, so far developed into for the 6th generation, commercialization developed into for the 5th generation.At present, IGBT has been widely used in the every profession and trade of national economy.
At present, the industry of domestic IGBT module is in development, and the IGBT module testing technology of middle low power grade is comparatively ripe, but the IGBT module production test of high-power grade is in the starting stage of development.
Apply situation about feeding back according to engineering and show, in engineering application, the fault spoilage of high-power IGBT is more a lot of than the height of small voltage, and according to incompletely statistics, medium-high voltage frequency converter caused fault to account for more than 90% because IGBT loses efficacy, and year failure rate is higher.The integrity problem of high-power IGBT has caused the concern of domestic relevant industries, and the reliability that improves high-power IGBT is most important.Because the base plate of IGBT is convex surface, therefore incorrect mounting means may just cause the inefficacy of IGBT module.In IGBT uses, base plate plays an important role to the heat radiation of whole module, base plate and heating radiator contact plane directly have influence on the homogeneity of IGBT heat radiation, in order to guarantee there is good heat conduction between module base plate and heating radiator, IGBT base plate and heating radiator contact plane are had to strict requirement.
Therefore, for the validity that guarantees that IGBT module is installed, be necessary to propose a kind of frock that the parallel planes degree detection of advancing can be installed at IGBT base plate, to guarantee the qualification rate of IGBT base plate, the IGBT base plate later stage can correctly be installed, avoid the inefficacy of IGBT module, reduce production and application cost, guarantee has good heat conductivity simultaneously between IGBT base plate and heating radiator.
Summary of the invention
In view of this, the invention provides a kind of test fixture of the face degree that can effectively detect IGBT base plate, the IGBT module flat degree that assurance is dispatched from the factory meets the demands, to reach the correct installation in IGBT base plate later stage, avoid the inefficacy of IGBT module, reduce production and application cost, guarantee has good heat conductivity between IGBT base plate and heating radiator simultaneously, improves the object of IGBT module operational reliability.
A kind of IGBT base plate proposing according to object of the present invention and the test fixture of heating radiator surface of contact, comprise height sensor, for the installing plate of fixing described height sensor is installed, described height sensor is uniformly distributed on described installing plate with latticed form, in order to detect the height of each position of described IGBT base plate;
Described test fixture also comprises the locating device for placing described IGBT base plate, and drives described IGBT base plate to move with described height sensor to contact the drive unit detecting;
Described installing plate, IGBT base plate and locating device set gradually up and down, and are positioned on same center line.
Preferably, be evenly distributed with multiple mounting holes on described installing plate, described height sensor is fixed in described mounting hole and stretches out the lower plane of described installing plate.
Preferably, described locating device is fixed base plate.
Preferably, on described fixed base plate, be also provided with the support column for supporting described IGBT base plate.
Preferably, on the surface of contact of described support column and described IGBT base plate, be provided with protective pad.
Preferably, described drive unit is cylinder.
A method of testing for IGBT base plate and heating radiator surface of contact, adopts described test fixture, and concrete steps are as follows:
One, IGBT base plate is positioned on described locating device and is located, guarantee the center of IGBT base plate and the center conllinear of locating device;
Two, by drive unit band dynamic positioning system and on IGBT base plate move up, contact with described height sensor;
Three, drive unit moves on continuing and makes IGBT base plate extruding height sensor, makes height sensor can effectively read the height parameter of each position on IGBT base plate, realizes the detection to IGBT base plate plane degree.
Compared with prior art, a kind of IGBT base plate disclosed by the invention and the test fixture of heating radiator surface of contact and the advantage of method of testing are: by IGBT base plate is arranged on locating device and is located, and make installing plate, IGBT base plate and locating device are positioned on same center line, guarantee the accuracy detecting, and drive IGBT base plate to move up and the flatness of height sensor contact detection IGBT base plate by drive unit, can effectively detect the qualification rate of IGBT base plate, the IGBT module flat degree that assurance is dispatched from the factory meets the demands, be convenient to the correct installation in IGBT base plate later stage, avoid cannot correctly installing because flatness is poor and cause the problems such as the inefficacy of IGBT module, reduce production and application cost, guarantee has good heat conductivity simultaneously between IGBT base plate and heating radiator, improve IGBT module reliability of operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of installing plate in the test fixture of a kind of IGBT base plate disclosed by the invention and heating radiator surface of contact.
Fig. 2 is the structural representation of the test fixture of a kind of IGBT base plate disclosed by the invention and heating radiator surface of contact.
The title of the numeral in figure or the corresponding component of alphabetical representative:
1, installing plate 2, mounting hole 3, height sensor 4, fixed base plate 5, support column 6, protective pad 7, cylinder 8, IGBT base plate
Embodiment
In prior art because the base plate of IGBT is convex surface, the poor mounting means that probably causes of base plate plane degree of IGBT is inaccurate, cause the inefficacy of IGBT module, increase use cost, and base plate plays an important role to the heat radiation of whole module in IGBT uses, base plate and heating radiator contact plane directly have influence on the homogeneity of IGBT heat radiation, in order to guarantee there is good heat conduction between module base plate and heating radiator, IGBT base plate and heating radiator contact plane are had to strict requirement.
The present invention is directed to the problems of the prior art, test fixture and the method for testing of a kind of IGBT base plate and heating radiator surface of contact have been proposed, guarantee the accuracy detecting, can effectively detect the flatness of IGBT base plate, guarantee the correct installation in IGBT base plate later stage, the IGBT module flat degree that assurance is dispatched from the factory meets the demands, avoid the problems such as the inefficacy of the incorrect IGBT of the causing module of mounting means, reduce production and application cost, guarantee has good heat conductivity simultaneously between IGBT base plate and heating radiator, and improves IGBT module operational reliability.
To be clearly and completely described technical scheme of the present invention by embodiment below.Obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, 2, Fig. 1 is the structural representation of installing plate in the test fixture of a kind of IGBT base plate disclosed by the invention and heating radiator surface of contact.Fig. 2 is the structural representation of the test fixture of a kind of IGBT base plate disclosed by the invention and heating radiator surface of contact.As shown in the figure, the test fixture of a kind of IGBT base plate and heating radiator surface of contact, comprises height sensor, and for the installing plate 1 of level altitude sensor is installed, height sensor is uniformly distributed on installing plate 1 with latticed form; On installing plate 1, be evenly distributed with multiple mounting holes 2, height sensor is fixed in mounting hole 2 and stretches out the lower plane of installing plate 1, is convenient to make the contact detection of IGBT base plate and height sensor.Wherein height sensor also can directly adhere on installing plate, and concrete fixed form does not limit.
By be uniformly distributed multiple height sensors on installing plate, can detect the height of multiple positions on IGBT base plate, can effectively determine the flatness of IGBT base plate, guarantee the correct installation in IGBT base plate later stage, the IGBT module flat degree dispatching from the factory is met the demands, avoid occurring the problem such as inefficacy of IGBT module, reduce production and application cost, guarantee has good heat conductivity between IGBT base plate and heating radiator simultaneously, has improved IGBT module operational reliability.
Test fixture also comprises the locating device for placing IGBT base plate 8, and drives IGBT base plate 8 to move to contact the drive unit detecting with height sensor; Installing plate 1, IGBT base plate 8 and locating device set gradually up and down, and are positioned on same center line.Guarantee that IGBT base plate 8 can be corresponding with installing plate 1 after moving with drive unit, makes IGBT base plate 8 can effectively contact and detect with height sensor everywhere.
Locating device is fixed base plate 4.On fixed base plate 4, be also provided with the support column 5 for supporting IGBT base plate 8.On the surface of contact of support column 5 and IGBT base plate 8, be provided with protective pad 6.Can reduce the damage that contacts between support column 5 and IGBT base plate 8 by protective pad 6 is set, avoid affecting the performance of IGBT base plate, improve serviceable life, reduce use cost.
Drive unit is cylinder 7.Adopt cylinder 7 to brake fast and drive IGBT base plate 8 to move, detection efficiency is higher, and in addition, drive unit also can be oil cylinder or by modes such as linear electric motors drivings, specifically depends on the circumstances, and does not limit at this.
The method of testing that the invention also discloses a kind of IGBT base plate and heating radiator surface of contact, adopts above-mentioned test fixture, and concrete steps are as follows:
One, IGBT base plate 8 is positioned on described locating device and is located, guarantee the center of IGBT base plate and the center conllinear of locating device;
Two, by drive unit band dynamic positioning system and on IGBT base plate 8 move up, contact with height sensor;
Three, drive unit moves and makes IGBT base plate 8 push height sensor on continuing, and makes height sensor can effectively read the height parameter of each position on IGBT base plate 8, realizes the detection to IGBT base plate plane degree.
This invention has solved the problem of how high-power IGBT module base plate plane degree being tested, guarantee that the IGBT module flat degree dispatching from the factory meets the demands, having guaranteed has good heat conductivity between module base plate and heating radiator, has improved IGBT module reliability of operation.
Accurately test the flatness between IGBT module and heating radiator.The reliability of module is improved.Existing market product backplane specifications is included in the setting of multiple height sensors, widely applicable.In test process, exchange program according to different product and need not change test fixture.
The invention discloses test fixture and the method for testing of a kind of IGBT base plate and heating radiator surface of contact, by IGBT base plate is arranged on locating device and is located, and make installing plate, IGBT base plate and locating device are positioned on same center line, guarantee the accuracy detecting, and drive IGBT base plate to move up and the flatness of height sensor contact detection IGBT base plate by drive unit, can effectively detect the qualification rate of IGBT base plate, guarantee the correct installation in IGBT base plate later stage, the IGBT module flat degree dispatching from the factory is met the demands, avoid cannot correctly installing because flatness is poor and cause the problems such as the inefficacy of IGBT module, reduce production and application cost, guarantee has good heat conductivity simultaneously between IGBT base plate and heating radiator, and improve IGBT module operational reliability.
In addition, be micron-sized height sensor by being uniformly distributed multiple measuring accuracies, no matter how the size of IGBT base plate changes all can effectively detect it, expand the test specification of this test fixture, improve measuring accuracy.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. the test fixture of an IGBT base plate and heating radiator surface of contact, it is characterized in that, comprise height sensor, for the installing plate of fixing described height sensor is installed, described height sensor is uniformly distributed on described installing plate with latticed form, in order to detect the height of each position of described IGBT base plate;
Described test fixture also comprises the locating device for placing described IGBT base plate, and drives described IGBT base plate to move with described height sensor to contact the drive unit detecting;
Described installing plate, IGBT base plate and locating device set gradually up and down, and are positioned on same center line.
2. the test fixture of IGBT base plate as claimed in claim 1 and heating radiator surface of contact, is characterized in that, is evenly distributed with multiple mounting holes on described installing plate, and described height sensor is fixed in described mounting hole and stretches out the lower plane of described installing plate.
3. the test fixture of IGBT base plate as claimed in claim 1 and heating radiator surface of contact, is characterized in that, described locating device is fixed base plate.
4. the test fixture of IGBT base plate as claimed in claim 3 and heating radiator surface of contact, is characterized in that, is also provided with the support column for supporting described IGBT base plate on described fixed base plate.
5. the test fixture of IGBT base plate as claimed in claim 4 and heating radiator surface of contact, is characterized in that, on the surface of contact of described support column and described IGBT base plate, is provided with protective pad.
6. the test fixture of IGBT base plate as claimed in claim 1 and heating radiator surface of contact, is characterized in that, described drive unit is cylinder.
7. a method of testing for IGBT base plate and heating radiator surface of contact, is characterized in that, adopts test fixture claimed in claim 1, and concrete steps are as follows:
One, IGBT base plate is positioned on described locating device and is located, guarantee the center of IGBT base plate and the center conllinear of locating device;
Two, by drive unit band dynamic positioning system and on IGBT base plate move up, contact with described height sensor;
Three, drive unit moves on continuing and makes IGBT base plate extruding height sensor, makes height sensor can effectively read the height parameter of each position on IGBT base plate, realizes the detection to IGBT base plate plane degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559715.1A CN103884310A (en) | 2012-12-20 | 2012-12-20 | Test tool and test method for IGBT bottom board and radiator contact surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559715.1A CN103884310A (en) | 2012-12-20 | 2012-12-20 | Test tool and test method for IGBT bottom board and radiator contact surface |
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| CN103884310A true CN103884310A (en) | 2014-06-25 |
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| CN201210559715.1A Pending CN103884310A (en) | 2012-12-20 | 2012-12-20 | Test tool and test method for IGBT bottom board and radiator contact surface |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225759A (en) * | 2016-08-25 | 2016-12-14 | 纳百川控股有限公司 | The measurement apparatus of new energy car battery cool-heat-exchanger flatness and system |
| CN108844511A (en) * | 2018-07-04 | 2018-11-20 | 江南大学 | A kind of portable railway plate flatness inspection devices |
| CN111043996A (en) * | 2019-12-25 | 2020-04-21 | 河南立川机械科技有限公司 | Valve bracket comprehensive measuring machine |
| CN113008192A (en) * | 2021-03-01 | 2021-06-22 | 中信戴卡股份有限公司 | Wheel flange surface detection device and detection method thereof |
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| CN1031892A (en) * | 1988-08-18 | 1989-03-22 | 清华大学 | Six-contact type high-precision planeness-measuring method and device |
| CN2694226Y (en) * | 2004-04-23 | 2005-04-20 | 广东鸿图科技股份有限公司 | High-precision flatness measuring instrument |
| CN102538660A (en) * | 2010-12-20 | 2012-07-04 | 苏州春兴精工股份有限公司 | Flatness measuring device for workpieces |
| CN202393349U (en) * | 2011-12-30 | 2012-08-22 | 深圳市龙霖科技发展有限公司 | Device for quickly detecting planeness of sectional materials |
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2012
- 2012-12-20 CN CN201210559715.1A patent/CN103884310A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031892A (en) * | 1988-08-18 | 1989-03-22 | 清华大学 | Six-contact type high-precision planeness-measuring method and device |
| CN2694226Y (en) * | 2004-04-23 | 2005-04-20 | 广东鸿图科技股份有限公司 | High-precision flatness measuring instrument |
| CN102538660A (en) * | 2010-12-20 | 2012-07-04 | 苏州春兴精工股份有限公司 | Flatness measuring device for workpieces |
| CN202393349U (en) * | 2011-12-30 | 2012-08-22 | 深圳市龙霖科技发展有限公司 | Device for quickly detecting planeness of sectional materials |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225759A (en) * | 2016-08-25 | 2016-12-14 | 纳百川控股有限公司 | The measurement apparatus of new energy car battery cool-heat-exchanger flatness and system |
| CN106225759B (en) * | 2016-08-25 | 2019-02-12 | 纳百川控股有限公司 | The measuring device and system of new energy car battery cool-heat-exchanger flatness |
| CN108844511A (en) * | 2018-07-04 | 2018-11-20 | 江南大学 | A kind of portable railway plate flatness inspection devices |
| CN111043996A (en) * | 2019-12-25 | 2020-04-21 | 河南立川机械科技有限公司 | Valve bracket comprehensive measuring machine |
| CN113008192A (en) * | 2021-03-01 | 2021-06-22 | 中信戴卡股份有限公司 | Wheel flange surface detection device and detection method thereof |
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Application publication date: 20140625 |