CN105137296A - Insulation test tool used for IGBT module - Google Patents
Insulation test tool used for IGBT module Download PDFInfo
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- CN105137296A CN105137296A CN201510423050.5A CN201510423050A CN105137296A CN 105137296 A CN105137296 A CN 105137296A CN 201510423050 A CN201510423050 A CN 201510423050A CN 105137296 A CN105137296 A CN 105137296A
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- igbt module
- bearing bracket
- lower bearing
- insulation test
- movable axis
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Abstract
The invention provides an insulation test tool used for an IGBT module. The insulation test tool comprises a machine frame, a flexible shaft and a pressure inductor. The machine frame is divided into an upper part and a lower part which are connected via the flexible shaft. The pressure inductor is installed on the machine frame. The IGBT module is arranged between the upper and lower machine frames. The upper machine frame applies pressure to the lower machine frame via the flexible shaft. When the pressure inductor measures that pressure between the upper and lower machine frames reaches the preset value, the flexible shaft stops moving and maintains the pressure state of the upper and lower machine frames.
Description
Technical field
The invention belongs to IGBT module technical field of measurement and test, be specifically related to a kind of Insulation test frock for IGBT module.
Background technology
Along with the development of modern science and technology, semiconductor devices and assembly obtain application widely in every field.IGBT, as the mainstream product of power electronics third time revolution, is mainly used in the fields such as track traffic, wind-power electricity generation, electric automobile, converter plant, leads the advance of semicon industry.IGBT module comprises encapsulation, test two parts, test is test IGBT module being carried out to every electric property, wherein one is test the insulation of IGBT module and shelf depreciation, guaranteeing that module in use can not cause Module Fail because of having shelf depreciation, ensureing the reliability of IGBT module.
Mainly adopt manual operations at present, use torque spanner to be fastened on by copper coin in module central electrode, then put into equipment cavity, test again after wiring.Fig. 1 a is depicted as prior art test fixture structural representation, shows central electrode position, and Fig. 1 b is depicted as prior art test fixture copper coin and is fastened on design sketch in module central electrode.As shown in Fig. 1 a and Fig. 1 b, when carrying out insulation and local discharge test to IGBT module, torque spanner must be used to be fastened in module central electrode by copper coin, then put into test board carry out line test by installing the IGBT module of copper coin.Need after having tested again to dismantle copper coin.The whole manual operation of whole process, loaded down with trivial details, time-consuming, do not meet the requirement of commercial production to production efficiency.
In addition, in prior art, application number be 201310646011.2 patent of invention disclose a kind of device of the shelf depreciation for test I GBT module, comprising the insulation positioning support of the IGBT module for laying needs test, being arranged on the probe mechanism insulated on positioning support, and loading unit, loading unit can drive probe mechanism to move vertically, thus contacts with needing the IGBT module port tested.In addition, the insulation shell holding probe mechanism is also comprised.
In such scheme, only corresponding probe mechanism is provided with to IGBT module corresponding port, during test, loading unit drives probe mechanism and IGBT port contact, owing to not doing corresponding control to the driver of loading unit, in practical operation, it is excessive that easy generation IGBT module receives pressure, thus cause damage to IGBT module.
In view of the foregoing, the invention provides a kind of Insulation test frock for IGBT module, to solve the problem.
Summary of the invention
The invention provides a kind of Insulation test frock for IGBT module, comprise frame, movable axis and pressure inductor, described frame is divided into upper and lower two parts, and connected by movable axis, described pressure inductor is installed in frame, and IGBT module is placed between lower bearing bracket, and described upper spider is pressurizeed to lower bearing bracket by movable axis, when the pressure inductor pressure recorded between upper lower bearing bracket arrives preset value, movable axis stop motion also keeps upper lower bearing bracket pressure state.
Preferably, described upper lower bearing bracket is also respectively equipped with conductive layer and insulation course, and IGBT module is placed between two conductive layers of lower bearing bracket, and two conductive layers are connected to signals collecting line.
Preferably, described conductive layer is copper sheet, and the copper sheet of upper spider is connected to power lead.
Preferably, the copper sheet of described upper spider contacts with the central electrode of IGBT module, the copper sheet of lower bearing bracket and the contacts baseplate of IGBT module.
Preferably, lower bearing bracket is provided with the groove for placing IGBT module.
Preferably, described Insulation test frock is also provided with warning light, and when movable axis stop motion also keeps upper lower bearing bracket pressure state, described warning light is bright.
According to the Insulation test frock for IGBT module provided by the invention, include frame, movable axis and pressure inductor, described frame is divided into upper and lower two parts, and connected by movable axis, described pressure inductor is installed in frame, and IGBT module is placed between lower bearing bracket, and described upper spider is pressurizeed to lower bearing bracket by movable axis, when the pressure inductor pressure recorded between upper lower bearing bracket arrives preset value, movable axis stop motion also keeps upper lower bearing bracket pressure state.So, eliminate the installation and removal to central electrode copper bar, improve testing efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 a is prior art test fixture structural representation;
Fig. 1 b is the design sketch that prior art test fixture copper coin is fastened in module central electrode;
Fig. 2 is the Insulation test tool structure schematic diagram for IGBT module that present pre-ferred embodiments provides;
Fig. 3 is the Insulation test frock working state schematic representation for IGBT module that present pre-ferred embodiments provides.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
The Insulation test frock for IGBT module that present pre-ferred embodiments provides comprises frame, movable axis and pressure inductor.Fig. 2 is the Insulation test tool structure schematic diagram for IGBT module that present pre-ferred embodiments provides, and Fig. 3 is the Insulation test frock working state schematic representation for IGBT module that present pre-ferred embodiments provides.As shown in Figures 2 and 3, described frame is divided into upper and lower two parts 1 and 3, and is connected by movable axis 2.Wherein, described pressure inductor is installed in frame, and IGBT module is placed between lower bearing bracket, and described upper spider is pressurizeed to lower bearing bracket by movable axis, when the pressure inductor pressure recorded between upper lower bearing bracket arrives preset value, movable axis stop motion also keeps upper lower bearing bracket pressure state.
In the present embodiment, described movable axis, for controlling the motion of upper lower bearing bracket, adopts steel axle herein, and according to stretch mode activity, be reserved with the space holding movable axis in lower bearing bracket, when movable axis is descending, its redundance is contained in lower bearing bracket.In other embodiment, described movable axis can also arrange the space holding movable axis in upper spider, and when movable axis presses down, its redundance is contained in the corresponding space of upper spider.Such as, or described movable axis also can adopt other elastomeric element, spring etc., but this present invention is not construed as limiting.
With reference to Fig. 2, described upper lower bearing bracket is also respectively equipped with conductive layer 4, lower conductiving layer 7 and upper insulation course 8, lower insulation course 9, and IGBT module is placed between two conductive layers 4 and 7 of lower bearing bracket, and two conductive layers are connected to signals collecting line 5 and 6.Described conductive layer 4 and 7 is copper sheet, and the copper sheet 4 of upper spider is connected to power lead.In this, owing to relating to high pressure in insulation and local discharge test, so when designing, on test fixture, lower bearing bracket is designed with the insulation course of adequate thickness outward respectively, and prevent when Hi-pot test, the electric discharge of layers of copper and equipment room, causes damage to equipment.
In the present embodiment, the copper sheet of described upper spider contacts with the central electrode of IGBT module, the copper sheet of lower bearing bracket and the contacts baseplate of IGBT module.Lower bearing bracket 3 is provided with the groove for placing IGBT module.Described Insulation test frock is also provided with warning light, and when movable axis stop motion also keeps upper lower bearing bracket pressure state, described warning light is bright.
During practical operation, IGBT module central electrode is put into groove upward, then control movable axis to move downward, until the conductive layer of upper spider contacts completely with IGBT module central electrode, lower bearing bracket conductive layer contacts completely with IGBT base plate simultaneously, utilizes electric press control principle, is applied between IGBT module central electrode and lower bearing bracket according to default dynamics, ensure that upper spider because of the excessive damage module of pressure, thus can not complete the electrical connection of insulation and local discharge test when applying pressure.In the present embodiment, described default dynamics is 6KN, in other embodiment, can set the size of power as required, but is not construed as limiting this present invention.Only IGBT module need be put into pressing machine groove when testing, pressing respective keys and just can test, eliminating the installation and removal to central electrode copper bar.
In addition, Insulation test frock provided by the invention, can carry out the change of profile and size as required, or reequip bottom frock to product, be convenient to place multiple IGBT module and test simultaneously.
In sum, according to the Insulation test frock for IGBT module that present pre-ferred embodiments provides, include frame, movable axis and pressure inductor, described frame is divided into upper and lower two parts, and connected by movable axis, described pressure inductor is installed in frame, IGBT module is placed between lower bearing bracket, described upper spider is pressurizeed to lower bearing bracket by movable axis, when the pressure inductor pressure recorded between upper lower bearing bracket arrives preset value, movable axis stop motion also keeps upper lower bearing bracket pressure state.So, save manpower and materials, improve testing efficiency.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. the Insulation test frock for IGBT module, it is characterized in that, comprise frame, movable axis and pressure inductor, described frame is divided into upper and lower two parts, and is connected by movable axis, and described pressure inductor is installed in frame, IGBT module is placed between lower bearing bracket, described upper spider is pressurizeed to lower bearing bracket by movable axis, and when the pressure inductor pressure recorded between upper lower bearing bracket arrives preset value, movable axis stop motion also keeps upper lower bearing bracket pressure state.
2. Insulation test frock according to claim 1, is characterized in that, described upper lower bearing bracket is also respectively equipped with conductive layer and insulation course, and IGBT module is placed between two conductive layers of lower bearing bracket, and two conductive layers are connected to signals collecting line.
3. Insulation test frock according to claim 2, is characterized in that, described conductive layer is copper sheet, and the copper sheet of upper spider is connected to power lead.
4. Insulation test frock according to claim 3, is characterized in that, the copper sheet of described upper spider contacts with the central electrode of IGBT module, the copper sheet of lower bearing bracket and the contacts baseplate of IGBT module.
5. Insulation test frock according to claim 1, is characterized in that, lower bearing bracket is provided with the groove for placing IGBT module.
6. Insulation test frock according to claim 1, is characterized in that, described Insulation test frock is also provided with warning light, and when movable axis stop motion also keeps upper lower bearing bracket pressure state, described warning light is bright.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510423050.5A CN105137296A (en) | 2015-07-17 | 2015-07-17 | Insulation test tool used for IGBT module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510423050.5A CN105137296A (en) | 2015-07-17 | 2015-07-17 | Insulation test tool used for IGBT module |
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| CN105137296A true CN105137296A (en) | 2015-12-09 |
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| CN201510423050.5A Pending CN105137296A (en) | 2015-07-17 | 2015-07-17 | Insulation test tool used for IGBT module |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011111834A1 (en) * | 2010-03-12 | 2011-09-15 | 東京エレクトロン株式会社 | Probe apparatus |
| CN102798739A (en) * | 2012-09-06 | 2012-11-28 | 杭州士兰集成电路有限公司 | IC (Integrated Circuit) plastic-package body voltage withstand test clamp and test methods |
| JP2013015403A (en) * | 2011-07-04 | 2013-01-24 | Toyota Motor Corp | Semiconductor inspection device |
| CN102998606A (en) * | 2011-09-08 | 2013-03-27 | 富士电机株式会社 | Device and method for testing characteristics of semiconductor element |
| CN203275535U (en) * | 2013-01-17 | 2013-11-06 | 江苏物联网研究发展中心 | Device for testing dynamic characteristics of IGBT two-unit power device module |
| CN103675622A (en) * | 2013-12-04 | 2014-03-26 | 株洲南车时代电气股份有限公司 | Device and method for testing partial discharge of IGBT module |
| CN204359829U (en) * | 2015-01-29 | 2015-05-27 | 中国电子科技集团公司第十三研究所 | A kind of test fixture |
-
2015
- 2015-07-17 CN CN201510423050.5A patent/CN105137296A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011111834A1 (en) * | 2010-03-12 | 2011-09-15 | 東京エレクトロン株式会社 | Probe apparatus |
| JP2013015403A (en) * | 2011-07-04 | 2013-01-24 | Toyota Motor Corp | Semiconductor inspection device |
| CN102998606A (en) * | 2011-09-08 | 2013-03-27 | 富士电机株式会社 | Device and method for testing characteristics of semiconductor element |
| CN102798739A (en) * | 2012-09-06 | 2012-11-28 | 杭州士兰集成电路有限公司 | IC (Integrated Circuit) plastic-package body voltage withstand test clamp and test methods |
| CN203275535U (en) * | 2013-01-17 | 2013-11-06 | 江苏物联网研究发展中心 | Device for testing dynamic characteristics of IGBT two-unit power device module |
| CN103675622A (en) * | 2013-12-04 | 2014-03-26 | 株洲南车时代电气股份有限公司 | Device and method for testing partial discharge of IGBT module |
| CN204359829U (en) * | 2015-01-29 | 2015-05-27 | 中国电子科技集团公司第十三研究所 | A kind of test fixture |
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Application publication date: 20151209 |