Modularized IGBT (Insulated Gate Bipolar Translator) test sub-machine
By designing a modular IGBT test sub-machine, the problem of cost waste caused by the inability to split existing equipment is solved, flexible splicing and upgrade are achieved, upgrading costs are reduced, and testing efficiency is improved.
Patent Information
- Application Number
- CN202421205903.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-05-30
AI Technical Summary
During the actual production process of IGBT modules, the client will change the testing requirements. The existing equipment is integrated and cannot be split, resulting in the re-purchase of equipment, resulting in waste of costs.
A modular IGBT test sub-machine is designed, including an operating table, a dual-station transplanting module, a pressure test module and a heating box module. Through the combination and splitting of these modules, flexible splicing and upgrading of the test station is achieved.
It realizes adding and deleting the operating table and its top structure according to test needs, changing the requirements in accordance with the previous and later stages, and upgrading it later stages, reducing the upgrade cost and facilitating better testing of modules.
Smart Images
Figure CN222866810U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of semiconductor testing and sorting, in particular to a modular IGBT testing sub-machine. Background Art
[0002] With the rapid development of the new energy vehicle industry, IGBT modules have been widely used and the demand is increasing. IGBT modules are modular semiconductor products that are packaged by IGBT chips and FWD (freewheeling diode chips) through specific circuit bridges. IGBT modules are core devices for energy conversion and transmission, especially in converter systems with DC voltages of 600V and above. In new energy vehicles, they are mainly responsible for converting the DC power of the battery into the AC power required by the motor, while realizing the frequency and voltage control of the motor. IGBT modules have the characteristics of high efficiency and energy saving, high voltage, high current, and easy switching, so they can be used better.
[0003] At present, in the production process of IGBT modules, in order to be as close as possible to the actual application scenario, various normal and high temperature electrical performance tests are usually carried out on them, such as avalanche test, insulation test, static test, etc. under normal temperature environment, and dynamic test and static test under high temperature environment.
[0004] However, in the actual production process of IGBT modules, the client may change the test requirements (adding new test stations or reducing test stations), but the current equipment is integrated and cannot be disassembled. In this case, the only way is to purchase new equipment, which causes a waste of cost. Therefore, a modular IGBT test sub-machine is designed. The sub-machine is independent and can be spliced according to specific requirements. In theory, it can be continuously extended. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide a modular IGBT test sub-machine to solve the problem that in the actual production process of the IGBT module, the client will change the test requirements (adding new test stations or reducing test stations). However, the current equipment is integrated and cannot be disassembled. In this case, the equipment can only be re-purchased, resulting in a technical problem of cost waste.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a modular IGBT test sub-machine, including an operating table, a duplex displacement planting module is arranged on the top of the operating table, a test station is fixedly connected to one side of the duplex displacement planting module, and a pressure measurement module is arranged on the other side of the duplex displacement planting module, a heating box module is arranged on the top of the operating table, a tail transfer part is arranged at one end of the heating box module, and a transfer assembly is arranged at the bottom of the heating box module, the transfer assembly includes a fixed plate fixedly connected to the top of the operating table, two groups of limit blocks are fixedly connected to the top of the fixed plate, and a partition is fixedly connected to the top of the limit block, and linear bearings are penetrated at the four corners of the partition, and the A ceramic heat-insulating rod is provided at the bottom of the linear bearing, and an auxiliary spring is provided on the outer surface of the linear bearing. A contact plate is movably connected in the heating box module, and the linear bearing slides at the bottom of the contact plate. A second pen-shaped cylinder is provided on the top of the partition plate, and a movable block is fixedly connected to one end of the second pen-shaped cylinder. The movable block slides in the cam follower, and the cam follower is fixedly connected to the bottom of the contact plate. A first pen-shaped cylinder is provided on the top of the fixed plate, and one end of the first pen-shaped cylinder is connected to the bottom of the contact plate. The tail transfer part includes a fixed block, a first cylinder is provided on one side of the fixed block, and a linear cylinder is provided on the outer surface of the first cylinder, and a clamping block is fixedly connected to the top of the linear cylinder.
[0007] By adopting the above technical scheme, when testing the module, the module can be placed on the top of the test station through the duplex displacement planting module on the top of the operating table, and then the module can be tested by moving the pressure testing module. After the test is completed, the module on the top of the test station is moved to the inside of the heating box module through the duplex displacement planting module. At this time, the module can be driven to move in the heating box module through the tail transfer part and the transfer assembly, so that the module can enter the interior of the heating box module from one end, and then come out of the heating box module after moving inside for a circle, and its entry position and exit position are located at the same end of the heating box module. If multiple operating tables are set at this time, the module can be taken away and tested again through the duplex displacement planting module on the top of another operating table. Therefore, the operating table and its top structure can be added or deleted according to the test requirements, which meets the changes in the needs before and after, as well as the later upgrades, reduces the upgrade cost, and facilitates better testing of the module.
[0008] The utility model is further configured as follows: the duplex displacement module includes a connecting frame, and the connecting frame is fixedly connected to the top of the operating table, a linear motor is arranged on the outer surface of the connecting frame, a movable plate is slidably connected to one side of the linear motor, and a first ball screw module and a second ball screw module are arranged on one side of the movable plate, manipulators are arranged on the outer surfaces of the first ball screw module and the second ball screw module, and drag chains are arranged on the outer surfaces of the first ball screw module and the second ball screw module, and the drag chains slide on the top of the connecting frame.
[0009] By adopting the above-mentioned technical scheme, the linear motor can drive the first ball screw module and the second ball screw module on one side of the movable plate to move left and right, and then respectively drive the manipulator at the bottom thereof to move through the first ball screw module and the second ball screw module, which is conducive to driving the corresponding module to move through the first ball screw module and the second ball screw module. At the same time, the first ball screw module and the second ball screw module can also be used to synchronously pick up and discharge materials for the module, so as to improve the work efficiency of module testing. At the same time, the distance between the first ball screw module and the second ball screw module is fixed, so that their movements are synchronized, which is convenient for better picking up and placing of the module.
[0010] The utility model is further configured as follows: the pressure measuring module includes a connecting piece, and the connecting piece is fixedly connected to one side of the connecting frame, a group of slide rails are arranged on the top of the connecting piece, and the outer surface of the slide rails is slidably connected to a slider, a third ball screw module is arranged on the top of the connecting piece, and one end of the third ball screw module is fixedly connected to the outer surface of the slider, one end of the slider is rotatably connected to a pressure measuring assembly, cam follower bearings are arranged on both sides of the pressure measuring assembly, and slide grooves are arranged on both sides of the connecting piece, and the cam follower bearings slide in the slide grooves.
[0011] By adopting the above-mentioned technical solution, the third ball screw module can be used to drive the slider to slide on the outer surface of the connecting piece, so that the position of the pressure measuring assembly can be adjusted. When the position of the pressure measuring assembly is adjusted, the pressure measuring assembly can be made to slide on the connecting piece through the slide groove and the cam follower bearing, so as to adjust the height of the pressure measuring assembly to avoid affecting the operation of other structures.
[0012] The utility model is further configured that the heating box module comprises a heating box body, the heating box body is arranged on the top of the operating table, and a heating plate is arranged in the heating box body.
[0013] By adopting the above technical solution, heat can be diffused through thermal radiation, thereby increasing the temperature inside the heating box body, so that the temperature inside the heating box body can be more in line with the actual required temperature, which is convenient for better testing of the module.
[0014] The utility model is further configured that a temperature sensor penetrates the bottom of the heating box body.
[0015] By adopting the above technical solution, the temperature in the heating box body can be monitored in real time through the temperature sensor, so that the module can be better tested.
[0016] The utility model is further configured that a groove is provided at the bottom of the heating box body.
[0017] By adopting the above technical solution, the tail transfer part and the transfer assembly can drive the module to move in the heating box body.
[0018] In summary, the utility model mainly has the following beneficial effects:
[0019] The utility model can drive the module to move in the heating box module through the cooperation between the tail transfer part and the transfer assembly, so that the module can repeatedly enter the interior of the heating box module from one end, and then come out of the heating box module after moving one circle inside, and its entry position and exit position are located at the same end of the heating box module. If multiple operating tables are set at this time, the module can be taken away and tested again through the duplex displacement transfer module on the top of another operating table. Therefore, the operating table and its top structure can be added or deleted according to the test requirements, which meets the changes in the needs before and after, as well as the later upgrades, reduces the upgrade cost, and facilitates better testing of the module. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0021] Figure 2 This is a detailed diagram of the duplex displacement planting module of the utility model;
[0022] Figure 3 This is a detailed diagram of the pressure measurement module of the utility model;
[0023] Figure 4 This is a detailed diagram of the heating box module of the utility model;
[0024] Figure 5 This is a detailed diagram of the tail transfer part of the utility model;
[0025] Figure 6 It is a detailed diagram of the transfer part of the utility model.
[0026] In the figure: 1. operating table; 2. duplex displacement module; 201. linear motor; 202. first ball screw module; 203. second ball screw module; 204. drag chain; 205. connecting frame; 206. movable plate; 207. manipulator; 3. test station; 4. pressure test module; 401. slider; 402. third ball screw module; 403. cam follower bearing; 404. pressure test assembly; 405. slide rail; 406. connector; 407. slideway; 5. heating box module; 50 1. Heating box body; 6. Tail transfer part; 601. First cylinder; 602. Linear cylinder; 603. Fixed block; 7. Transfer assembly; 701. Limit block; 702. First pen-shaped cylinder; 703. Ceramic insulation rod; 704. Mobile mold; 705. Linear bearing; 706. Auxiliary spring; 707. Second pen-shaped cylinder; 708. Cam follower; 709. Fixed plate; 710. Partition; 711. Contact plate; 8. Heating plate; 9. Temperature sensor; 10. Groove. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0028] The following describes an embodiment of the utility model based on its overall structure.
[0029] A modular IGBT test sub-machine, such as Figure 1-6 As shown, it includes an operating table 1, on the top of the operating table 1 is arranged a duplex displacement planting module 2, one side of the duplex displacement planting module 2 is fixedly connected to a test station 3, and the other side of the duplex displacement planting module 2 is arranged a pressure measurement module 4, and the top of the operating table 1 is arranged a heating box module 5, one end of the heating box module 5 is arranged a tail transfer part 6, and the bottom of the heating box module 5 is arranged a transfer component 7, the module can be placed on the top of the test station 3 through the duplex displacement planting module 2, and then the module is tested through the pressure measurement module 4, and the module after the test is completed is placed in the heating box module 5 through the duplex displacement planting module 2 for movement, the temperature of the module can be changed to make it come out from the end it enters, at this time it can be taken away by the duplex displacement planting module 2 on the top of another operating table 1 for testing, so as to simulate the performance of the module under various high temperatures.
[0030] The transfer assembly 7 includes a fixed plate 709 fixedly connected to the top of the operating table 1, two sets of limit blocks 701 fixedly connected to the top of the fixed plate 709, and a partition 710 fixedly connected to the top of the limit block 701, linear bearings 705 are penetrated at the four corners of the partition 710, a ceramic heat insulation rod 703 is arranged at the bottom of the linear bearing 705, and an auxiliary spring 706 is arranged on the outer surface of the linear bearing 705, a contact plate 711 is movably connected in the heating box module 5, and the linear bearing 705 slides at the bottom of the contact plate 711, a second pen-shaped cylinder 707 is arranged on the top of the partition 710, and one end of the second pen-shaped cylinder 707 is fixedly connected to the bottom of the contact plate 711. A movable block is connected, and the movable block slides in the cam follower 708, and the cam follower 708 is fixedly connected to the bottom of the contact plate 711, and a movable mold 704 is arranged on the top of the contact plate 711, and a first pen-shaped cylinder 702 is arranged on the top of the fixed plate 709, and one end of the first pen-shaped cylinder 702 is connected to the bottom of the contact plate 711, and the module can be controlled to move in the horizontal direction by the first pen-shaped cylinder 702, and the second pen-shaped cylinder 707 controls the ceramic insulation rod 703 to move up and down in the linear bearing 705 through the cam follower 708, so that it can form a circular motion, which is convenient for driving the module to move in the heating box module 5.
[0031] The tail transfer part 6 includes a fixed block 603, a first cylinder 601 is arranged on one side of the fixed block 603, and a linear cylinder 602 is arranged on the outer surface of the first cylinder 601, and a clamping block is fixedly connected to the top of the linear cylinder 602. The clamping block can be driven to reciprocate by the first cylinder 601 and the linear cylinder 602, so that the material picking and discharging form a circular motion process, which is convenient for better driving the module to move.
[0032] When the module is in use, the module is placed on the top of the test station 3 through the duplex displacement planting module 2, and then the module is tested by moving the pressure testing module 4. After the test is completed, the module on the top of the test station 3 can be moved to the inside of the heating box module 5 through the duplex displacement planting module 2. At this time, the module can be driven to move in the heating box module 5 by the tail transfer part 6 and the transfer assembly 7, so that the material taking and discharging form a circular movement process, so that the module can enter the interior of the heating box module 5 from one end, and then come out of the heating box module 5 after moving one circle inside, and its entry position and exit position are located at the same end of the heating box module 5. If multiple operating tables 1 are set at this time, the module can be taken away and tested again through the duplex displacement planting module 2 on the top of another operating table 1. Therefore, the operating table 1 and its top structure can be added or deleted according to the test requirements, which meets the changes in the needs before and after, as well as the later upgrades, reduces the upgrade cost, and facilitates better testing of the module.
[0033] At the same time, the duplex displacement module 2 includes a connecting frame 205, and the connecting frame 205 is fixedly connected to the top of the operating table 1, and a linear motor 201 is arranged on the outer surface of the connecting frame 205, and a movable plate 206 is slidably connected to one side of the linear motor 201, and a first ball screw module 202 and a second ball screw module 203 are arranged on one side of the movable plate 206, and a manipulator 207 is arranged on the outer surfaces of the first ball screw module 202 and the second ball screw module 203, and a drag chain 204 is arranged on the outer surfaces of the first ball screw module 202 and the second ball screw module 203, and the drag chain 204 By sliding on the top of the connecting frame 205, the linear motor 201 can drive the first ball screw module 202 and the second ball screw module 203 on one side of the movable plate 206 to move left and right, and then can synchronously drive the corresponding manipulator 207 to move, which is beneficial for driving the corresponding module to move through the first ball screw module 202 and the second ball screw module 203, and can realize the material picking and placing of the module. At the same time, the distance between the first ball screw module 202 and the second ball screw module 203 is fixed, so that their movements are synchronized, which is convenient for better picking and placing of the module.
[0034] The pressure measuring module 4 includes a connecting piece 406, and the connecting piece 406 is fixedly connected to one side of the connecting frame 205. A group of slide rails 405 are arranged on the top of the connecting piece 406, and the outer surface of the slide rail 405 is slidably connected to the slider 401. A third ball screw module 402 is arranged on the top of the connecting piece 406, and one end of the third ball screw module 402 is fixedly connected to the outer surface of the slider 401, and one end of the slider 401 is rotatably connected to the pressure measuring assembly 404, cam follower bearings 403 are arranged on both sides of the pressure measuring assembly 404, and slide grooves 407 are arranged on both sides of the connecting piece 406, and the cam follower bearing 403 slides in the slide grooves 407. The positions of the slider 401 and the pressure measuring assembly 404 are adjusted by the third ball screw module 402, which is convenient for testing the module and can also avoid affecting the taking and placing of the module.
[0035] The heating box module 5 in the embodiment includes a heating box body 501, which is arranged on the top of the operating table 1, and a heating plate 8 is arranged in the heating box body 501. The heating plate 8 can diffuse heat by thermal radiation, so as to increase the temperature in the heating box body 501, and a temperature sensor 9 runs through the bottom of the heating box body 501. The temperature in the heating box body 501 is monitored in real time by the temperature sensor 9, so that the module can be better tested, and a groove 10 is arranged at the bottom of the heating box body 501, so that the tail transfer part 6 and the transfer assembly 7 can drive the module to move in the heating box body 501, so that the module can be better tested.
[0036] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A modular IGBT test sub-machine, comprising an operating table (1), characterized in that: The top of the operating table (1) is provided with a duplex displacement module (2), one side of the duplex displacement module (2) is fixedly connected to a test station (3), and the other side of the duplex displacement module (2) is provided with a pressure measurement module (4), the top of the operating table (1) is provided with a heating box module (5), one end of the heating box module (5) is provided with a tail transfer part (6), and the bottom of the heating box module (5) is provided with a transfer component (7), and the transfer component (7) includes a The top of the workbench (1) is fixedly connected to a fixed plate (709), the top of the fixed plate (709) is fixedly connected to two groups of limit blocks (701), and the top of the limit blocks (701) is fixedly connected to a partition (710), and the four corners of the partition (710) are penetrated by linear bearings (705), the bottom of the linear bearing (705) is provided with a ceramic heat insulation rod (703), and the outer surface of the linear bearing (705) is provided with an auxiliary spring (706), and the heating box A contact plate (711) is movably connected in the mold assembly (5), and a linear bearing (705) slides at the bottom of the contact plate (711). A movable reverse mold (704) is arranged on the top of the contact plate (711). A second pen-shaped cylinder (707) is arranged on the top of the partition plate (710), and a movable block is fixedly connected to one end of the second pen-shaped cylinder (707). The movable block slides in a cam follower (708), and the cam follower (708) is fixedly connected to the contact plate ( The bottom of the contact plate (711) is provided with a first pen-shaped cylinder (702) on the top of the fixing plate (709), and one end of the first pen-shaped cylinder (702) is connected to the bottom of the contact plate (711), the tail transfer part (6) comprises a fixing block (603), a first cylinder (601) is provided on one side of the fixing block (603), and a linear cylinder (602) is provided on the outer surface of the first cylinder (601), and a clamping block is fixedly connected to the top of the linear cylinder (602).
2. The modular IGBT test sub-machine according to claim 1, characterized in that: The duplex displacement module (2) comprises a connecting frame (205), and the connecting frame (205) is fixedly connected to the top of the operating table (1); a linear motor (201) is arranged on the outer surface of the connecting frame (205); a movable plate (206) is slidably connected to one side of the linear motor (201); a first ball screw module (202) and a second ball screw module (203) are arranged on one side of the movable plate (206); a manipulator (207) is arranged on the outer surface of the first ball screw module (202) and the second ball screw module (203); a drag chain (204) is arranged on the outer surface of the first ball screw module (202) and the second ball screw module (203); and the drag chain (204) slides on the top of the connecting frame (205).
3. The modular IGBT test sub-machine according to claim 1, characterized in that: The pressure measuring module (4) includes a connecting member (406), and the connecting member (406) is fixedly connected to one side of the connecting frame (205), a group of slide rails (405) are arranged on the top of the connecting member (406), and the outer surface of the slide rail (405) is slidably connected to a slider (401), a third ball screw module (402) is arranged on the top of the connecting member (406), and one end of the third ball screw module (402) is fixedly connected to the outer surface of the slider (401), one end of the slider (401) is rotatably connected to a pressure measuring assembly (404), cam follower bearings (403) are arranged on both sides of the pressure measuring assembly (404), and slide grooves (407) are arranged on both sides of the connecting member (406), and the cam follower bearing (403) slides in the slide grooves (407).
4. The modular IGBT test sub-machine according to claim 1, characterized in that: The heating box module (5) comprises a heating box body (501), the heating box body (501) is arranged on the top of the operating table (1), and a heating plate (8) is arranged inside the heating box body (501).
5. The modular IGBT test sub-machine according to claim 4, characterized in that: A temperature sensor (9) penetrates the bottom of the heating box body (501).
6. The modular IGBT test sub-machine according to claim 5, characterized in that: The bottom of the heating box body (501) is provided with a groove (10).