CN115166299B - IGBT performance test fixture - Google Patents
IGBT performance test fixture Download PDFInfo
- Publication number
- CN115166299B CN115166299B CN202210924908.6A CN202210924908A CN115166299B CN 115166299 B CN115166299 B CN 115166299B CN 202210924908 A CN202210924908 A CN 202210924908A CN 115166299 B CN115166299 B CN 115166299B
- Authority
- CN
- China
- Prior art keywords
- seat
- rod
- bearing seat
- busbar
- igbt
- 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.)
- Active
Links
- 238000011056 performance test Methods 0.000 title claims description 19
- 238000012360 testing method Methods 0.000 claims abstract description 61
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 230000000670 limiting effect Effects 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000006185 dispersion Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention belongs to the technical field of IGBT (insulated gate bipolar transistor) testing, in particular to an IGBT performance testing tool, which comprises a testing seat; the middle part of the surface of the test seat is provided with a bearing seat; an assembly groove is formed in the bearing seat; the number of the assembly grooves is multiple, and the assembly grooves are arranged in the bearing seat in a circumferential array; the inside of each assembly groove is slidably connected with a busbar seat; the outer surface of the bearing seat is rotationally connected with a rotating shaft; one side of the rotating shaft far away from the bearing seat is connected with the output end of an external driving motor; the outer surface of the test seat is connected with a debugging frame in a sliding manner; the plurality of assembly grooves are formed, so that the bearing seat can drive the assembly grooves at different positions and different busbar seats to rotate to one side close to the test frame, automatic adjustment can be carried out according to the test modules of the required busbar seats, and then IGBT samples of different specifications can be tested, the application range is wide, and the test efficiency of the IGBT samples is improved.
Description
Technical Field
The invention belongs to the technical field of IGBT (insulated gate bipolar transistor) testing, and particularly relates to an IGBT performance testing tool.
Background
The IGBT and the insulated gate bipolar transistor are composite full-control voltage-driven power semiconductor devices consisting of BJT (bipolar transistor) and MOS (insulated gate field effect transistor), and have the advantages of high input impedance of the MOSFET and low conduction voltage drop of the GTR. The GTR saturation voltage is reduced, the current carrying density is high, but the driving current is high; the MOSFET has small driving power, high switching speed, large conduction voltage drop and small current carrying density.
One chinese patent with publication number CN213750180U discloses a test fixture for performance test of multi-specification IGBT, including bracing piece, workstation, testing arrangement and delivery platform, the workstation is fixed on the up end of bracing piece, testing arrangement with delivery platform all fixes the up end of workstation, be equipped with on the testing arrangement and connect the electrography, electrography place pole, connecting plate and controlling means, the electrography place pole with the connecting plate all is located on testing arrangement's the right-hand member face, two connect the electrography through spiral electric wire twine respectively on two the electrography place pole, two connect the electrography all through wire connection testing arrangement, controlling means fixes on the lower terminal surface at the right-hand member position of connecting plate, controlling means passes through wire connection testing arrangement the delivery motor of delivery platform. The device facilitates large-scale IGBT sample performance test and saves manpower.
In the prior art, the IGBT samples are generally conveyed by simply using the conveying plate, but the IGBT samples packaged by different specifications are detected by using different busbar modules, so that the normal detection of the IGBT samples is influenced due to the trouble in adjusting the different busbar modules.
Therefore, the invention provides an IGBT performance test tool.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to an IGBT performance test fixture, which comprises a test seat; the middle part of the surface of the test seat is provided with a bearing seat; an assembly groove is formed in the bearing seat; the number of the assembly grooves is multiple, and the assembly grooves are arranged in the bearing seat in a circumferential array; the inside of each assembly groove is slidably connected with a busbar seat; the outer surface of the bearing seat is rotationally connected with a rotating shaft; one side of the rotating shaft far away from the bearing seat is connected with the output end of an external driving motor; the outer surface of the test seat is connected with a debugging frame in a sliding manner; the surface of the test seat is provided with a column-shaped groove matched with the test frame; in the prior art, the IGBT samples are generally conveyed by simply using a conveying plate, but the IGBT samples packaged in different specifications are detected by using different busbar modules, so that the adjustment of the different busbar modules is troublesome, and the normal detection of the IGBT samples is influenced; when the IGBT sample is detected, the IGBT sample is placed in a busbar seat in an assembly groove, then a worker moves the debugging frame to the position right above the busbar seat by adjusting the debugging frame, and then the normal performance test can be carried out on the IGBT sample in the busbar seat by an electronic test board in the debugging frame, wherein the normal performance test is the prior art, and redundant description is omitted in the embodiment; simultaneously drive axis of rotation and bear the seat through external driving motor and rotate, make and bear the seat and be the rotation of certain angle, owing to set up a plurality of assembly grooves, so bear the seat and can drive the assembly groove of different positions department and the female seat of arranging of difference and rotate to the one side that is close to the test jig to can carry out automatically regulated according to the test module of the female seat of arranging that needs, and then can test the IGBT sample of different specifications, application range is extensive, has improved the test efficiency of IGBT sample.
Preferably, a connecting shaft is rotatably connected in the bearing seat; the outer surface of the connecting shaft is fixedly connected with an abutting rod; the plurality of the interference rods are arranged on the outer surface of the connecting shaft in a circumferential array; the shape of one end of the abutting rod far away from the bearing seat is arc-shaped; a pressure rod is fixedly arranged on one side of each busbar seat, which is close to the contact rod; the outer surface of the pressure rod is fixedly provided with a compression spring; the shape of one side of the pressure rod, which is close to the abutting rod, is arc-shaped; the connecting shaft is connected with the output end of the external driving motor, and the connecting mode is the prior art, after the bearing seat moves to a proper position, the connecting shaft is driven to rotate by driving the external driving motor, the connecting shaft drives the contact rod to rotate simultaneously, then the contact rod can be contacted with the bottom end of the pressure rod and extruded by the contact rod, the pressure rod drives the busbar seat to move towards one side far away from the assembly groove, and when the busbar seats in different positions are replaced, the connecting shaft is reversed, the pressure rod is not pressed any more, so that when the compression spring is changed from an accumulation state to an initial state, the pressure rod can drive the busbar seat to recover to the inside of the assembly groove, the busbar seat can be pushed out and retracted at the moment, the unused busbar seat is protected, and the phenomenon that the busbar seats in different positions are damaged by the outside when not used is avoided.
Preferably, the left side and the right side of the pressure rod are fixedly connected with limit rods; limiting grooves which are symmetrically arranged are formed in the assembling grooves; one end of the limiting rod is connected in the limiting groove in a sliding manner; during operation, at the in-process that the pressure pole removed, the pressure pole can drive the gag lever post of its left and right sides simultaneously and remove, and afterwards the gag lever post can slide in the inside of spacing groove, and under the effect of gag lever post and spacing groove this moment, can make this female seat of arranging along vertical line upward movement, avoids female seat of arranging to take place the skew, and the debugging frame surface test module is connected and tests with the IGBT sample on female arranging after convenient.
Preferably, an air storage bag is fixedly arranged in each limit groove; an air outlet pipe is fixedly arranged on the outer surface of the air storage bag, and the air outlet end of the air outlet pipe faces one side of the busbar seat; during operation, at the pressure bar along the spacing groove removal in-process, the pressure bar can contact each other with the gas storage bag later to the inside gas of gas storage bag can be extruded and go out, and blows the surface of IGBT sample on the busbar through its external outlet duct, blows out some impurity on IGBT sample surface, avoids partial impurity to cover at the IGBT sample and influences its normal test.
Preferably, shielding plates which are symmetrically arranged are rotationally connected to one side, close to the assembly groove, of the outer surface of the bearing seat; the outer surface of the bearing seat is provided with a rotating shaft matched with the shielding plate; the outer surface of each pressure rod is fixedly connected with a column-shaped rod; one end of the columnar rod, which is far away from the pressure rod, is connected with the side surface of the shielding plate; the outer surface of the shielding plate is connected with the outer surface of the bearing seat; during operation, the pressure rod can drive the column rod on the surface of the pressure rod to move simultaneously in the moving process of the pressure rod, then the column rod can prop against one side of the shielding plate, the shielding plate is enabled to pull the extension spring to rotate at a certain angle, then the shielding plates on two sides can be opened at a certain angle, then the busbar seat can be pushed out from the opened shielding plates, when the pressure rod returns, the shielding plates on two sides are not pressed any more, when the extension spring returns to an initial state, the shielding plates on two sides return and shield the busbar seat, so that the busbar seat can be protected when not used, the phenomenon that the busbar seat is damaged due to impact is avoided, and normal use of the busbar seat is ensured.
Preferably, a sliding groove is formed in the shielding plate; the inside of the sliding groove is rotationally connected with a rolling ball; a dispersing rod is rotatably connected to the inside of the shielding plate; a rotating shaft seat matched with the dispersing rod is arranged in the shielding plate; the bottom of the dispersion rod is fixedly provided with a rubber storage seat; activated carbon powder is filled in the rubber storage seat; during operation, when the shielding plate is opened, the rolling ball in the shielding plate can slide in the sliding groove and fall at the lowest position, then when the shielding plate is restored, the rolling ball rolls towards one side close to the dispersing rod under the self gravity of the rolling ball and impacts the surface of the rubber storage seat on the surface of the dispersing rod, so that the dispersing rod swings at a certain angle, then the activated carbon powder in the rubber storage seat is extruded and can be discharged through the outlet of the rubber storage seat and falls on the surface of the busbar seat, and the phenomenon that part of electric appliances cannot be normally used due to too much moist gas on the surface of the busbar seat is avoided.
Preferably, the lower surface of the shielding plate is provided with a through hole; the through holes are arranged in a plurality and are equidistantly formed on the outer surface of the shielding plate; the plurality of through holes are arranged, so that more active carbon powder can be scattered on the surface of the busbar seat under the swinging state of the dispersing rod.
Preferably, the outer surface of the dispersing rod is provided with a feeding hole; the inner wall of the feeding hole is clamped with a clamping column; the outer surface of the clamping column is sleeved with a rubber sleeve; set up feed port and card post, can extract the card post, later pass through the inside of feed port to dispersion pole and rubber repository and lets in active carbon powder, make things convenient for the later to its reuse.
Preferably, the outer surface of the rubber storage seat is provided with a slotted hole; the number of the slotted holes is two, the slotted holes are symmetrically arranged, and a grid is arranged in each slotted hole; when the rubber storage seat is stressed, the shape of the rubber storage seat is not changed, so that the activated carbon powder in the rubber storage seat cannot be extruded, when the rubber storage seat is stressed, the shape of the slotted hole of the rubber storage seat is changed at the same time, and then the activated carbon powder in the rubber storage seat can be extruded, so that the rubber storage seat is convenient to use.
Preferably, an inclined rod is fixedly arranged on one side of the sliding groove, which is close to the dispersing rod; one side of the inclined rod facing the inside of the sliding groove; the inclined rod is arranged, so that the ball can be limited to a certain extent, and the ball is prevented from being separated from the sliding groove.
The beneficial effects of the invention are as follows:
1. according to the IGBT performance test fixture, the external driving motor drives the rotating shaft and the bearing seat to rotate, so that the bearing seat rotates at a certain angle, and the plurality of assembly grooves are formed, so that the bearing seat can drive the assembly grooves at different positions and different busbar seats to rotate to one side close to the test frame, automatic adjustment can be performed according to the test modules of the required busbar seats, further, IGBT samples of different specifications can be tested, the application range is wide, and the test efficiency of the IGBT samples is improved.
2. According to the IGBT performance testing tool disclosed by the invention, the busbar seat can be pushed out from the opened shielding plates, when the pressure rod returns, the shielding plates are not pressed any more, and when the tension spring returns to an initial state, the shielding plates at the two sides return and shield the busbar seat, so that the busbar seat can be protected when not in use, the phenomenon that the busbar seat is damaged due to impact is avoided, and the normal use of the busbar seat is ensured.
3. According to the IGBT performance testing tool disclosed by the invention, when the shielding plate is recovered, the rolling ball rolls towards one side close to the dispersing rod under the self gravity and impacts the surface of the rubber storage seat on the surface of the dispersing rod, so that the dispersing rod swings at a certain angle, then the active carbon powder in the rubber storage seat is extruded and discharged through the outlet of the active carbon powder and falls on the surface of the busbar seat, and the phenomenon that some moist gas on the surface of the busbar seat is absorbed, so that the phenomenon that part of electric appliances cannot be normally used due to too much moist gas on the surface of the busbar seat is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the carrier of the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 2B in accordance with the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 4 at C in accordance with the present invention;
fig. 6 is a schematic view of a diagonal member according to a second embodiment of the present invention.
In the figure: 1. a test seat; 2. a bearing seat; 3. an assembly groove; 4. a busbar seat; 5. a rotating shaft; 6. a test frame; 7. a connecting shaft; 8. a touch-up rod; 9. a pressure rod; 10. a compression spring; 11. a limit rod; 12. a limit groove; 13. an air storage bag; 14. a shielding plate; 15. a column-shaped rod; 16. a tension spring; 17. a sliding groove; 18. a dispersion rod; 181. a rolling ball; 19. a rubber storage seat; 20. a through hole; 21. a feed hole; 22. a clamping column; 23. a slot hole; 24. and (5) a diagonal rod.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1 to 2, the IGBT performance test tool according to the embodiment of the invention includes a test socket 1; the middle part of the surface of the test seat 1 is provided with a bearing seat 2; an assembly groove 3 is formed in the bearing seat 2; the number of the assembly grooves 3 is multiple, and the assembly grooves are arranged in the bearing seat 2 in a circumferential array; the inside of each assembly groove 3 is slidably connected with a busbar seat 4; the outer surface of the bearing seat 2 is rotatably connected with a rotating shaft 5; one side of the rotating shaft 5 far away from the bearing seat 2 is connected with the output end of an external driving motor; the outer surface of the test seat 1 is connected with a debugging frame 6 in a sliding manner; the surface of the test seat 1 is provided with a column-shaped groove matched with the debugging frame 6; in the prior art, the IGBT samples are generally conveyed by simply using a conveying plate, but the IGBT samples packaged in different specifications are detected by using different busbar modules, so that the adjustment of the different busbar modules is troublesome, and the normal detection of the IGBT samples is influenced; during operation, when detecting an IGBT sample, placing the IGBT sample in the busbar seat 4 in the assembly groove 3, then, a worker moves the debugging frame 6 to the position right above the busbar seat 4 by adjusting the debugging frame 6, and then, the normal performance test can be carried out on the IGBT sample in the busbar seat 4 through an electronic test board in the debugging frame 6, wherein the prior art is adopted, and redundant description is omitted in the embodiment; simultaneously drive axis of rotation 5 and bear seat 2 through external driving motor and rotate, make and bear seat 2 and be the rotation of certain angle, owing to set up a plurality of assembly grooves 3, so bear seat 2 can drive assembly groove 3 and the different female seat of arranging 4 of locating in different positions and rotate to the one side that is close to the test jig 6 to can carry out automatically regulated according to the test module of the female seat of arranging 4 that needs, and then can test the IGBT sample of different specifications, application range is extensive, has improved the test efficiency of IGBT sample.
As shown in fig. 2 to 4, a connecting shaft 7 is rotatably connected to the interior of the carrying seat 2; the outer surface of the connecting shaft 7 is fixedly connected with an abutting rod 8; the plurality of the interference rods 8 are arranged on the outer surface of the connecting shaft 7 in a circumferential array; the shape of one end of the contact rod 8 far away from the bearing seat 2 is arc-shaped; a pressure rod 9 is fixedly arranged on one side of each busbar seat 4 close to the contact rod 8; the outer surface of the pressure rod 9 is fixedly provided with a compression spring 10; the shape of one side of the pressure rod 9, which is close to the contact rod 8, is arc-shaped; the connecting shaft 7 is connected with the output end of the external driving motor, and the connecting mode is the prior art, after the bearing seat 2 moves to a proper position in the working process, the connecting shaft 7 is driven by the driving external driving motor to rotate, the connecting shaft 7 simultaneously drives the contact rod 8 to rotate, then the contact rod 8 can be mutually contacted with the bottom end of the pressure rod 9 and extrude the contact rod, the pressure rod 9 drives the busbar seat 4 to move to one side far away from the assembly groove 3, and when the different busbar seats 4 are replaced, the connecting shaft 7 is reversed, the pressure rod 9 is not pressed any more, so that when the compression spring 10 is changed from the pressure accumulation state to the initial state, the pressure rod 9 can drive the busbar seat 4 to recover, the busbar seat 4 can return to the interior of the assembly groove 3, at the moment, the busbar seat 4 can be pushed out and retracted, the busbar seats 4 which are not used can be protected, and the phenomenon that the busbar seats 4 at different positions are damaged by the outside is avoided when not used. .
Wherein the left side and the right side of the pressure rod 9 are fixedly connected with limiting rods 11; limiting grooves 12 which are symmetrically arranged are formed in the assembling groove 3; one end of the limiting rod 11 is connected inside the limiting groove 12 in a sliding manner; during operation, in the process that the pressure rod 9 moved, the pressure rod 9 can drive the gag lever post 11 on its left and right sides simultaneously and remove, and afterwards gag lever post 11 can slide in the inside of spacing groove 12, and under the effect of gag lever post 11 and spacing groove 12 this moment, can make this female seat 4 move along vertical line, avoids female seat 4 to take place the skew, and the test bench 6 surface test module is connected and tests with the IGBT sample on female the arranging after convenient.
Wherein, the air storage bags 13 are fixedly arranged in the limit grooves 12; an air outlet pipe is fixedly arranged on the outer surface of the air storage bag 13, and the air outlet end of the air outlet pipe faces one side of the busbar seat 4; during operation, in the process that the pressure rod 9 moves along the limiting groove 12, the pressure rod 9 is in contact with the air storage bag 13, so that gas in the air storage bag 13 can be extruded and blown to the surface of the IGBT sample on the busbar through the external air outlet pipe, some impurities on the surface of the IGBT sample are blown away, and the phenomenon that the normal test of the IGBT sample is influenced due to the fact that part of impurities are covered on the IGBT sample is avoided.
Wherein, the shielding plates 14 which are symmetrically arranged are rotationally connected on one side of the outer surface of the bearing seat 2, which is close to the assembly groove 3; the outer surface of the bearing seat 2 is provided with a rotating shaft matched with the shielding plate 14; the outer surface of each pressure rod 9 is fixedly connected with a column-shaped rod 15; one end of the column-shaped rod 15, which is far away from the pressure rod 9, is connected with the side surface of the shielding plate 14; the outer surface of the shielding plate 14 is connected with the outer surface of the bearing seat 2 by a tension spring 16; during operation, in the process of moving the pressure rod 9, the pressure rod 9 drives the column-shaped rods 15 on the surface of the pressure rod 9 to move at the same time, then the column-shaped rods 15 prop against one side of the shielding plate 14, so that the shielding plate 14 pulls the tension spring 16 to rotate at a certain angle, then the shielding plates 14 on two sides can be opened at a certain angle, then the busbar seat 4 can be pushed out from the opened shielding plates 14, when the pressure rod 9 returns, the shielding plates 14 on two sides are not pressed any more, when the tension spring 16 returns to an initial state, the shielding plates 14 on two sides return and shield the busbar seat 4, thereby protecting the busbar seat 4 when the busbar seat 4 is not used, avoiding the phenomenon that the busbar seat 4 is damaged due to impact, and ensuring the normal use of the busbar seat 4.
As shown in fig. 2 to 5, a sliding groove 17 is formed in the shielding plate 14; a rolling ball 181 is rotatably connected to the inside of the sliding groove 17; a dispersing rod 18 is rotatably connected to the inside of the shielding plate 14; a rotating shaft seat matched with the dispersing rod 18 is arranged in the shielding plate 14; the bottom of the dispersion rod 18 is fixedly provided with a rubber storage seat 19; the rubber storage seat 19 is internally filled with activated carbon powder; when the shielding plate 14 is unfolded, the rolling ball 181 in the shielding plate can slide in the sliding groove 17 and fall at the lowest position, then when the shielding plate 14 is restored, the rolling ball 181 rolls towards one side close to the dispersing rod 18 under the self gravity and impacts the surface of the rubber storage seat 19 on the surface of the dispersing rod 18, so that the dispersing rod 18 swings at a certain angle, then the activated carbon powder in the rubber storage seat 19 is extruded and discharged through the outlet of the activated carbon powder and falls on the surface of the busbar seat 4, and the phenomenon that some moist gas on the surface of the busbar seat 4 is absorbed, so that the phenomenon that partial electric appliances cannot be normally used due to too much moist gas on the surface of the busbar seat 4 is avoided.
Wherein the lower surface of the shielding plate 14 is provided with a through hole 20; the through holes 20 are arranged in a plurality and are equidistantly formed on the outer surface of the shielding plate 14; the plurality of through holes 20 are provided to allow the dispersion bar 18 to spread more activated carbon powder on the surface of the busbar holder 4 in a swinging state.
The outer surface of the dispersion rod 18 is provided with a feeding hole 21; the inner wall of the feeding hole 21 is clamped with a clamping column 22; the outer surface of the clamping column 22 is sleeved with a rubber sleeve; the feeding hole 21 and the clamping column 22 are arranged, the clamping column 22 can be pulled out, and then activated carbon powder is introduced into the dispersing rod 18 and the rubber storage seat 19 through the feeding hole 21, so that the device is convenient to reuse.
The outer surface of the rubber storage seat 19 is provided with a slotted hole 23; the number of the slotted holes 23 is two, the slotted holes 23 are symmetrically arranged, and a grid is arranged in the slotted holes 23; when the rubber storage seat 19 is stressed, the shape of the rubber storage seat 19 is not changed, so that the activated carbon powder in the rubber storage seat 19 is not extruded, the shape of the slotted hole 23 of the rubber storage seat 19 is simultaneously changed when the rubber storage seat is stressed, and the activated carbon powder in the rubber storage seat is extruded, so that the rubber storage seat is convenient to use.
Example two
As shown in fig. 6, in comparative example one, another embodiment of the present invention is: a diagonal rod 24 is fixedly arranged on one side of the sliding groove 17, which is close to the dispersing rod 18; one side of the inclined rod 24 facing the inside of the sliding groove 17; the inclined rod 24 is arranged, so that the ball 181 has a certain limiting effect, and the ball 181 is prevented from being separated from the sliding groove 17.
During operation, when detecting an IGBT sample, placing the IGBT sample in the busbar seat 4 in the assembly groove 3, then, a worker moves the debugging frame 6 to the position right above the busbar seat 4 by adjusting the debugging frame 6, and then, the normal performance test can be carried out on the IGBT sample in the busbar seat 4 through an electronic test board in the debugging frame 6, wherein the prior art is adopted, and redundant description is omitted in the embodiment; meanwhile, the external driving motor drives the rotating shaft 5 and the bearing seat 2 to rotate, so that the bearing seat 2 rotates at a certain angle, and the plurality of assembly grooves 3 are arranged, so that the bearing seat 2 can drive the assembly grooves 3 at different positions and the different busbar seats 4 to rotate to one side close to the test frame 6, and therefore automatic adjustment can be performed according to a required test module of the busbar seat 4, further IGBT samples with different specifications can be tested, the application range is wide, and the test efficiency of the IGBT samples is improved; after the bearing seat 2 moves to a proper position, the connecting shaft 7 is driven to rotate by driving an external driving motor, the connecting shaft 7 simultaneously drives the contact rod 8 to rotate, then the contact rod 8 is mutually contacted with the bottom end of the pressure rod 9 and extrudes the contact rod, so that the pressure rod 9 drives the busbar seat 4 to move to one side far away from the assembly groove 3, and when different busbar seats 4 are replaced, the connecting shaft 7 is reversed, so that the pressure rod 9 is not pressed any more, when the compression spring 10 is changed from an accumulation state to an initial state, the pressure rod 9 drives the busbar seat 4 to recover, so that the busbar seat 4 returns to the interior of the assembly groove 3, and the busbar seat 4 can be pushed out and retracted at the moment, so that the unused busbar seat 4 is protected, and the phenomenon that the busbar seats 4 at different positions are damaged by the outside when not used is avoided; in the process of moving the pressure rod 9, the pressure rod 9 drives the limit rods 11 on the left side and the right side of the pressure rod 9 to move simultaneously, then the limit rods 11 slide in the limit grooves 12, at the moment, the busbar seat 4 can move along the vertical line under the action of the limit rods 11 and the limit grooves 12, the busbar seat 4 is prevented from deflecting, and the surface test module of the test frame 6 is conveniently connected with IGBT samples on the busbar and tested.
In the process that the pressure rod 9 moves along the limit groove 12, the pressure rod 9 is contacted with the air storage bag 13, so that air in the air storage bag 13 is extruded and blown to the surface of an IGBT sample on the busbar through an external air outlet pipe, and impurities on the surface of the IGBT sample are blown away, so that the influence of the coverage of the impurities on the IGBT sample on the normal test of the IGBT sample is avoided; in the process of moving the pressure rod 9, the pressure rod 9 drives the column-shaped rods 15 on the surface of the pressure rod 9 to move at the same time, then the column-shaped rods 15 prop against one side of the shielding plates 14, so that the shielding plates 14 pull the extension springs 16 to rotate at a certain angle, then the shielding plates 14 on two sides can be opened at a certain angle, the busbar seats 4 can be pushed out from the opened shielding plates 14, when the pressure rod 9 returns, the shielding plates 14 are not pressed any more, when the extension springs 16 return to an initial state, the shielding plates 14 on two sides return to shield the busbar seats 4, and therefore the busbar seats 4 can be protected when the busbar seats 4 are not used, the phenomenon that the busbar seats 4 are damaged due to impact is avoided, and normal use of the busbar seats 4 is ensured; when the shielding plate 14 is opened, the rolling ball 181 in the shielding plate 14 slides in the sliding groove 17 and falls to the lowest position, then when the shielding plate 14 is restored, the rolling ball 181 rolls to one side close to the dispersing rod 18 under the self gravity and impacts the surface of the rubber storage seat 19 on the surface of the dispersing rod 18, so that the dispersing rod 18 swings at a certain angle, then the activated carbon powder in the rubber storage seat 19 is extruded and discharged through an outlet of the activated carbon powder and falls on the surface of the busbar seat 4, and some moist gas on the surface of the busbar seat 4 is absorbed, so that the phenomenon that partial electric appliances cannot be normally used due to excessive moist gas on the surface of the busbar seat 4 is avoided; a plurality of through holes 20 are arranged, so that more active carbon powder can be scattered on the surface of the busbar holder 4 when the dispersion rod 18 swings; the feeding hole 21 and the clamping column 22 are arranged, the clamping column 22 can be pulled out, and then activated carbon powder is introduced into the dispersing rod 18 and the rubber storage seat 19, so that the dispersing rod can be conveniently reused; when the rubber storage seat 19 is not stressed, the shape of the rubber storage seat 19 is not changed, so that the activated carbon powder in the rubber storage seat is not extruded, and when the rubber storage seat 19 is stressed, the shape of the slotted hole 23 is simultaneously changed, so that the activated carbon powder in the rubber storage seat is extruded, and the use is more convenient.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An IGBT performance test fixture comprises a test seat (1); the method is characterized in that: the middle part of the surface of the test seat (1) is provided with a bearing seat (2); an assembly groove (3) is formed in the bearing seat (2); the number of the assembly grooves (3) is multiple, and the assembly grooves are arranged in the bearing seat (2) in a circumferential array; the inside of each assembly groove (3) is slidably connected with a busbar seat (4); the outer surface of the bearing seat (2) is rotationally connected with a rotating shaft (5); one side of the rotating shaft (5) far away from the bearing seat (2) is connected with the output end of an external driving motor; the outer surface of the test seat (1) is connected with a debugging frame (6) in a sliding way; the surface of the test seat (1) is provided with a column-shaped groove matched with the debugging frame (6);
a connecting shaft (7) is rotatably connected inside the bearing seat (2); an abutting rod (8) is fixedly connected to the outer surface of the connecting shaft (7); the plurality of the interference rods (8) are arranged on the outer surface of the connecting shaft (7) in a circumferential array; the shape of one end of the abutting rod (8) far away from the bearing seat (2) is arc-shaped; a pressure rod (9) is fixedly arranged at one side of each busbar seat (4) close to the abutting rod (8); the outer surface of the pressure rod (9) is fixedly provided with a compression spring (10); the shape of one side of the pressure rod (9) close to the contact rod (8) is arc-shaped; the connecting shaft (7) is connected with the output end of the external driving motor;
limiting rods (11) are fixedly connected to the left side and the right side of the pressure rod (9); limiting grooves (12) which are symmetrically arranged are formed in the assembling groove (3); one end of the limiting rod (11) is connected in the limiting groove (12) in a sliding manner; an air storage bag (13) is fixedly arranged in each limit groove (12); an air outlet pipe is fixedly arranged on the outer surface of the air storage bag (13), and the air outlet end of the air outlet pipe faces one side of the busbar seat (4).
2. The IGBT performance test tool of claim 1 wherein: the shielding plates (14) which are symmetrically arranged are rotationally connected to one side, close to the assembly groove (3), of the outer surface of the bearing seat (2); the outer surface of the bearing seat (2) is provided with a rotating shaft matched with the shielding plate (14); the outer surface of each pressure rod (9) is fixedly connected with a column-shaped rod (15); one end of the column-shaped rod (15) far away from the pressure rod (9) is connected with the side surface of the shielding plate (14); the outer surface of the shielding plate (14) is connected with an extension spring (16) on the outer surface of the bearing seat (2).
3. The IGBT performance test tool of claim 2 wherein: a sliding groove (17) is formed in the shielding plate (14); a rolling ball (181) is rotatably connected in the sliding groove (17); a dispersing rod (18) is rotatably connected to the inside of the shielding plate (14); a rotating shaft seat matched with the dispersing rod (18) is arranged in the shielding plate (14); the bottom of the dispersion rod (18) is fixedly provided with a rubber storage seat (19); the rubber storage seat (19) is internally filled with activated carbon powder.
4. The IGBT performance test tool of claim 3 wherein: the lower surface of the shielding plate (14) is provided with a through hole (20); the through holes (20) are arranged in a plurality, and are equidistantly formed in the outer surface of the shielding plate (14).
5. The IGBT performance test tool of claim 3 wherein: the outer surface of the dispersion rod (18) is provided with a feeding hole (21); the inner wall of the feeding hole (21) is clamped with a clamping column (22); the outer surface of the clamping column (22) is sleeved with a rubber sleeve.
6. The IGBT performance test tool of claim 5 wherein: the outer surface of the rubber storage seat (19) is provided with a slotted hole (23); the number of the slotted holes (23) is two, the slotted holes are symmetrically arranged, and a grid is arranged in each slotted hole (23).
7. The IGBT performance test tool of claim 5 wherein: an inclined rod (24) is fixedly arranged on one side, close to the dispersing rod (18), of the sliding groove (17); the inclined rod (24) faces to one side of the inner part of the sliding groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210924908.6A CN115166299B (en) | 2022-08-03 | 2022-08-03 | IGBT performance test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210924908.6A CN115166299B (en) | 2022-08-03 | 2022-08-03 | IGBT performance test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115166299A CN115166299A (en) | 2022-10-11 |
| CN115166299B true CN115166299B (en) | 2024-02-23 |
Family
ID=83478213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210924908.6A Active CN115166299B (en) | 2022-08-03 | 2022-08-03 | IGBT performance test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115166299B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6204464B1 (en) * | 1998-06-19 | 2001-03-20 | Douglas J. Garcia | Electronic component handler |
| CN101793926A (en) * | 2009-12-28 | 2010-08-04 | 苏州工业园区泰格电子科技有限公司 | Aging test bench |
| CN105467334A (en) * | 2014-08-04 | 2016-04-06 | 上海竟田电器检测技术有限公司 | Automatic lamp testing worktable |
| CN205240605U (en) * | 2015-12-16 | 2016-05-18 | 昆山昆光自动化科技有限公司 | Full automatic switching control equipment of multistation vibration dish |
| CN205539233U (en) * | 2016-01-20 | 2016-08-31 | 杭州华锦电子有限公司 | Electrical property detector |
| CN207992263U (en) * | 2017-11-01 | 2018-10-19 | 江苏凯尔生物识别科技有限公司 | Biochip Semi-automatic detector |
| CN208026831U (en) * | 2017-11-01 | 2018-10-30 | 江苏凯尔生物识别科技有限公司 | Bulk quantity of chips automatic checkout equipment |
| CN208672680U (en) * | 2018-07-25 | 2019-03-29 | 东莞市沃锐电子有限公司 | A kind of Optimum Design device |
| CN209231470U (en) * | 2018-11-14 | 2019-08-09 | 遵义市产品质量检验检测院 | A kind of pcb board multiple-station rotation detection device |
| CN213181893U (en) * | 2020-08-20 | 2021-05-11 | 小牧精工(天津)工业技术有限公司 | Production equipment for PCB detection |
| CN213337891U (en) * | 2020-10-15 | 2021-06-01 | 合肥博元电子科技有限公司 | Universal test equipment for power devices |
| CN113219331A (en) * | 2021-06-09 | 2021-08-06 | 谭杰 | Medium-high voltage ultra-fast switch and detection equipment thereof |
| CN214953947U (en) * | 2021-07-13 | 2021-11-30 | 深圳市芯海微电子有限公司 | Multi-station positioning device for integrated circuit test |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10247775B2 (en) * | 2017-04-12 | 2019-04-02 | Leap Electronic Co., Ltd. | Length adjustable arm and MEMS position detection equipment rotation test apparatus |
-
2022
- 2022-08-03 CN CN202210924908.6A patent/CN115166299B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6204464B1 (en) * | 1998-06-19 | 2001-03-20 | Douglas J. Garcia | Electronic component handler |
| CN101793926A (en) * | 2009-12-28 | 2010-08-04 | 苏州工业园区泰格电子科技有限公司 | Aging test bench |
| CN105467334A (en) * | 2014-08-04 | 2016-04-06 | 上海竟田电器检测技术有限公司 | Automatic lamp testing worktable |
| CN205240605U (en) * | 2015-12-16 | 2016-05-18 | 昆山昆光自动化科技有限公司 | Full automatic switching control equipment of multistation vibration dish |
| CN205539233U (en) * | 2016-01-20 | 2016-08-31 | 杭州华锦电子有限公司 | Electrical property detector |
| CN207992263U (en) * | 2017-11-01 | 2018-10-19 | 江苏凯尔生物识别科技有限公司 | Biochip Semi-automatic detector |
| CN208026831U (en) * | 2017-11-01 | 2018-10-30 | 江苏凯尔生物识别科技有限公司 | Bulk quantity of chips automatic checkout equipment |
| CN208672680U (en) * | 2018-07-25 | 2019-03-29 | 东莞市沃锐电子有限公司 | A kind of Optimum Design device |
| CN209231470U (en) * | 2018-11-14 | 2019-08-09 | 遵义市产品质量检验检测院 | A kind of pcb board multiple-station rotation detection device |
| CN213181893U (en) * | 2020-08-20 | 2021-05-11 | 小牧精工(天津)工业技术有限公司 | Production equipment for PCB detection |
| CN213337891U (en) * | 2020-10-15 | 2021-06-01 | 合肥博元电子科技有限公司 | Universal test equipment for power devices |
| CN113219331A (en) * | 2021-06-09 | 2021-08-06 | 谭杰 | Medium-high voltage ultra-fast switch and detection equipment thereof |
| CN214953947U (en) * | 2021-07-13 | 2021-11-30 | 深圳市芯海微电子有限公司 | Multi-station positioning device for integrated circuit test |
Non-Patent Citations (1)
| Title |
|---|
| 旋转编码开关自动检测与分选系统研究;郑志伟;《中国优秀硕士学位论文全文数据库 工程科技II辑》;C042-420 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115166299A (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108357895B (en) | Battery cell feeding mechanism | |
| CN103116117A (en) | Automatic high-voltage tester | |
| CN113640639B (en) | Testing device and testing method for semiconductor device | |
| CN108535114A (en) | Photovoltaic module gasbag-type load test device | |
| CN109244548B (en) | Lithium battery balance shell-entering machine | |
| CN115166299B (en) | IGBT performance test fixture | |
| CN109047017A (en) | A kind of automatic battery checker for axial workpiece | |
| CN108344915A (en) | A kind of end cap assembled power supply universal test device | |
| CN207965087U (en) | A kind of lithium battery test adjust automatically unit and the test device equipped with the unit | |
| CN113064057A (en) | Integrated circuit chip detection equipment and test method | |
| CN110165645B (en) | Power surge protector and detection device thereof | |
| US7938611B2 (en) | Feeding apparatus of test equipment | |
| CN208140814U (en) | A kind of end cap assembled power supply universal test device | |
| KR100524419B1 (en) | Index table test equipment of battery | |
| CN207397353U (en) | A kind of fingerprint module test platform | |
| CN113042401A (en) | Transformer test equipment | |
| CN209097594U (en) | Electrical testing and appearance detect all-in-one machine after a kind of diode forming | |
| CN204413989U (en) | A kind of puncture needle block machine | |
| CN212275925U (en) | Testing device based on core-shaped coil | |
| CN219233151U (en) | Battery voltage sorting machine | |
| CN112427781A (en) | Argon arc welding machine is used in processing of portable general equipment spare part | |
| CN111289830A (en) | TO-3P packaging element's waveform test mechanism | |
| CN116930672B (en) | Power battery copper-aluminum composite electrode performance testing device | |
| CN217846590U (en) | Multi-point puncture wire harness electrical property testing equipment | |
| CN116809468B (en) | Automatic test and sorting machine for solar panels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |