IGBT (Insulated Gate Bipolar Translator) module batch test equipment

Abstract

The utility model discloses IGBT module batch test equipment, which comprises a workbench, a conveyor, a test box, a loading assembly and a test assembly, the conveyor is arranged at the top of the workbench, the test box is arranged at the middle position of the top of the workbench, the test box is erected right above the conveyor, the loading assembly is arranged on the surface of the conveyor, and the loading assembly is arranged on the surface of the conveyor. The number of the loading assemblies is multiple, the loading assemblies are evenly distributed on the surface of the conveyor, the testing assembly is arranged in the testing box, the testing assembly is matched with the loading assemblies, and a first electric push rod is installed at the top of the testing box. Through the integrated design, the whole process of conveying, positioning, testing and resetting of the IGBT modules is automatic, a user only needs to place the IGBT modules to be tested one by one at the input end of the conveyor, the equipment can automatically complete the subsequent testing work, and the testing efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test equipment technical field, concretely relates to a kind of IGBT module batch testing equipment. BACKGROUND

[0002] With the rapid development of power electronics technology, insulated gate bipolar transistors (IGBT) module has gradually become the key component in power electronic equipment. IGBT module is a modular semiconductor product packaged by IGBT (insulated gate bipolar transistor chip) and FWD (free-wheeling diode chip) through a specific circuit bridge, with energy-saving, easy installation and maintenance, stable heat dissipation and other characteristics. IGBT module has a wide range of applications, covering household appliances, transportation, power engineering, renewable energy and smart grid and other fields. However, with the wide application of IGBT module in various systems, its quality and performance stability becomes particularly important. In order to ensure that IGBT module can meet various application requirements, it needs to be accurately tested in the production process.

[0003] The IGBT module testing device disclosed in the patent with publication number CN220933122U, when the test is completed, the two lead screws are rotated simultaneously by adjusting the motor, and the lead screw sleeve kit can be moved simultaneously in the same direction, the lead screw sleeve kit slides in the limiting groove, and the movable base is moved by the lead screw sleeve kit, so that the module to be tested and the module tested can be moved simultaneously, which can effectively reduce the downtime of the testing machine and improve the work efficiency of the test.

[0004] Although the above-mentioned IGBT module testing device realizes certain automation in module transfer, there are still some deficiencies in the feeding and discharging links. Although the device can simultaneously transfer the module to be tested and the module tested, since the feeding and discharging operations need to be frequently alternated at the left and right ends of the testing machine box, the operation complexity is increased, and the overall test process efficiency may be reduced.

[0005] Therefore, it is necessary to invent an IGBT module batch testing equipment to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide an IGBT module batch testing equipment to solve the problems in the above-mentioned technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a kind of IGBT module batch testing equipment, including workbench, conveyor, test box, loading assembly and test component, the conveyor is installed in workbench top, the test box is installed at the middle position of workbench top, the test box is erected in the directly above conveyor, the loading assembly is installed on the surface of conveyor, the number of the loading assembly is set to multiple, multiple the loading assembly is evenly distributed on the surface of conveyor, the test component is arranged in test box, the test component is matched with loading assembly, the test box top is installed with one electric push rod, the working end of the one electric push rod extends to test box interior and is fixedly connected with test component, the workbench front is equipped with control panel, the conveyor and one electric push rod are electrically connected with control panel.

[0008] By integrating workbench, conveyor, test box, loading assembly and test component and other key components, the automatic testing process of IGBT module is realized, and the testing efficiency is improved.

[0009] Preferably, the loading assembly includes a loading seat, the loading seat is fixedly connected to the surface of the conveyor, and two fixing plates are installed at the top of the loading seat.

[0010] The second electric push rod is provided to push the limiting clamping plate, which provides a reliable basis for clamping and fixing the IGBT module, and ensures the stability and accuracy during the test process.

[0011] Preferably, the top of the loading seat is fixedly connected with a first rubber pad, the working end of the second electric push rod penetrates through the fixing plate and is fixedly connected with a limiting clamping plate, and the clamping surface of the limiting clamping plate is fixedly connected with a second rubber pad.

[0012] The first rubber pad and the second rubber pad are provided to increase the protection of the IGBT module during loading, and to avoid the IGBT module from being worn.

[0013] Preferably, the test component includes a fixing seat, infrared receivers are installed at the bottom of the four corners of the fixing seat, infrared emitters are installed at the top of the four corners of the loading seat, the infrared emitters are matched with the infrared receivers, and the infrared receivers are electrically connected with the control panel.

[0014] The matching design of the infrared receivers and the infrared emitters is introduced to realize the accurate positioning between the loading assembly and the test component, and to ensure that the testing machine can accurately contact the IGBT module for testing.

[0015] Preferably, the fixing base is fixedly connected to the working end bottom of the first electric push rod, and a testing machine is arranged directly below the fixing base, and the testing machine is electrically connected with the control panel.

[0016] The first electric push rod provides stable support for the lifting and testing operation of the testing machine, and ensures smooth testing process.

[0017] Preferably, telescopic rods are installed at four corners of the top of the testing machine, and the top ends of the four telescopic rods are fixedly connected with the bottom of the fixing base.

[0018] The telescopic rods are used to realize the connection between the testing machine and the fixing base.

[0019] Preferably, buffer springs are movably sleeved on the surfaces of the four telescopic rods, one end of the buffer spring abuts against the fixing base, and the other end of the buffer spring abuts against the testing machine.

[0020] The buffer springs are introduced to enhance the buffering and protection effect during the testing process, avoid excessive collision between the testing machine and the IGBT module, and improve the accuracy and safety of the testing.

[0021] Preferably, the testing box is designed in an open type at both ends, doors are installed at the openings of the testing box at both ends, and a transparent observation window is installed on the front of the testing box.

[0022] The open type design of the testing box and the setting of the doors facilitate the loading assembly to enter and exit, and the introduction of the transparent observation window enables the user to intuitively observe the testing process.

[0023] In the above technical solution, the technical effects and advantages of the present application are as follows:

[0024] 1. Through the integrated design, the whole process automation of the IGBT module from conveying, positioning, testing to resetting is realized, the user only needs to place the IGBT modules to be tested one by one at the input end of the conveyor, and the device can automatically complete the subsequent testing work, thereby greatly improving the testing efficiency.

[0025] 2. The loading assembly and the testing assembly are precisely aligned through the infrared emitter and the infrared receiver, when the loading assembly moves to the position directly below the testing assembly, the infrared receiver can quickly receive the signal and notify the control panel to control the conveyor to pause operation, so that the testing machine can accurately contact and test the IGBT module, and the testing error caused by inaccurate alignment is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the present application;

[0027] Figure 2A structural section view of the utility model;

[0028] Figure 3 A structural schematic view of the utility model loading assembly when not loading IGBT module;

[0029] Figure 4 A structural schematic view of the utility model loading assembly when loading IGBT module;

[0030] Figure 5 A structural schematic view of the utility model test assembly.

[0031] Mark explanation:

[0032] 1, workbench;2, conveyor;3, test box;4, loading assembly;5, test assembly;6, No. 1 electric push rod;7, control panel;8, loading seat;9, fixed plate;10, No. 2 electric push rod;11, No. 1 rubber pad;12, limit clamp plate;13, No. 2 rubber pad;14, fixed seat;15, infrared receiver;16, infrared emitter;17, testing machine;18, telescopic rod;19, buffer spring;20, door curtain;21, transparent observation window. Specific implementation

[0033] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0034] The utility model provides a kind of IGBT module batch testing equipment as shown in Figures 1-5 It includes workbench 1, conveyor 2, test box 3, loading assembly 4 and test assembly 5, conveyor 2 is installed in workbench 1 top, test box 3 is installed in workbench 1 top middle position, test box 3 is erected in the just above conveyor 2, loading assembly 4 is installed on the surface of conveyor 2, the number of loading assembly 4 is set to multiple, multiple loading assembly 4 is evenly distributed on the surface of conveyor 2, test assembly 5 is arranged in test box 3, test assembly 5 is matched with loading assembly 4, test box 3 top is installed with No. 1 electric push rod 6, the working end of No. 1 electric push rod 6 extends to test box 3 inside and is fixedly connected with test assembly 5, workbench 1 front is installed with control panel 7, and conveyor 2 and No. 1 electric push rod 6 are electrically connected with control panel 7.

[0035] In one aspect of the embodiment, the loading assembly 4 comprises a loading seat 8 fixedly connected to the surface of the conveyor 2, each end of the top of the loading seat 8 is provided with a fixed plate 9, the surface of each fixed plate 9 is provided with a second electric push rod 10, the top of the loading seat 8 is fixedly connected with a first rubber pad 11, the working end of the second electric push rod 10 penetrates through the fixed plate 9 and is fixedly connected with a limiting clamp plate 12, the clamping surface of the limiting clamp plate 12 is fixedly connected with a second rubber pad 13, the testing assembly 5 comprises a fixed seat 14, the bottom of the fixed seat 14 is provided with an infrared receiver 15 at each corner, the top of the loading seat 8 is provided with an infrared emitter 16 at each corner, the infrared emitter 16 is matched with the infrared receiver 15, the infrared receiver 15 is electrically connected with the control panel 7, the fixed seat 14 is fixedly connected to the bottom of the working end of the first electric push rod 6, a testing machine 17 is arranged below the fixed seat 14, the testing machine 17 is electrically connected with the control panel 7, the top of the testing machine 17 is provided with a telescopic rod 18 at each corner, the top of each telescopic rod 18 is fixedly connected with the bottom of the fixed seat 14, each telescopic rod 18 is movably sleeved with a buffer spring 19, one end of the buffer spring 19 abuts against the fixed seat 14, the other end of the buffer spring 19 abuts against the testing machine 17, the testing box 3 is designed as an open type at both ends, the testing box 3 is provided with a door curtain 20 at the opening of each end, and the testing box 3 is provided with a transparent observation window 21 on the front face.

[0036] The working principle of the utility model:

[0037] Referring to the description accompanying drawings Figures 1-5 When using the utility model, first, the IGBT modules to be tested are placed on the loading seat 8 of the loading assembly 4 from the input end of the conveyor 2, then the second electric push rod 10 is started, the limiting clamp plate 12 is pushed to move close to the IGBT module through the telescopic action of the second electric push rod 10, and the limiting clamp plate 12 is clamped and fixed to the IGBT module until the IGBT module is clamped and fixed, and the first rubber pad 11 and the second rubber pad 13 are helpful to protect the IGBT module from being damaged in the loading process.

[0038] Then, the conveyor 2 is started, the conveyor 2 drives the loading assembly 4 and the IGBT module thereon to move to the inside of the testing box 3, when the loading assembly 4 moves to the position directly below the testing assembly 5, the infrared emitter 16 on the top of the loading seat 8 emits infrared rays, the infrared rays are received by the infrared receiver 15 on the testing assembly 5, the infrared receiver 15 immediately sends a signal to the control panel 7, and the control panel 7 immediately controls the conveyor 2 to pause operation, so that the loading assembly 4 and the testing assembly 5 can be accurately aligned.

[0039] Then, the first electric push rod 6 is started by the control panel 7, the working end of the first electric push rod 6 moves downward, and drives the test assembly 5 to gradually approach the loading assembly 4. In the process of the test assembly 5 descending, the buffer effect of the telescopic rod 18 and the buffer spring 19 is achieved, and excessive collision between the tester 17 and the IGBT module is avoided. When the tester 17 contacts the IGBT module, the tester 17 is started to perform performance test. In the test process, the inside of the test box 3 can be observed through the transparent observation window 21.

[0040] After the test is completed, the control panel 7 receives the test completion signal sent by the tester 17, the test assembly 5 is lifted back to the initial position by the control panel 7, and the conveyor 2 is started at the same time. The conveyor 2 drives the subsequent loading assembly 4 and the IGBT module thereon to continue to move to the inside of the test box 3, and the above steps are repeated to realize batch and continuous test operation of the IGBT module.

Claims

1. An IGBT module batch test apparatus comprising a worktable (1), a conveyor (2), a test box (3), a loading assembly (4) and a test assembly (5), characterized in that: The conveyor (2) is installed on the top of the workbench (1), the test box (3) is installed at the middle position of the top of the workbench (1), the test box (3) is erected above the conveyor (2), the loading assembly (4) is installed on the surface of the conveyor (2), the number of the loading assembly (4) is provided as a plurality, the plurality of loading assemblies (4) are uniformly distributed on the surface of the conveyor (2), the test assembly (5) is arranged in the test box (3), the test assembly (5) is matched with the loading assembly (4), a first electric push rod (6) is installed on the top of the test box (3), the working end of the first electric push rod (6) extends into the test box (3) and is fixedly connected with the test assembly (5), the control panel (7) is installed on the front of the workbench (1), and the conveyor (2) and the first electric push rod (6) are electrically connected with the control panel (7).

2. The IGBT module batch test device according to claim 1, characterized in that: The loading assembly (4) comprises a loading seat (8), the loading seat (8) is fixedly connected to the surface of the conveyor (2), and two fixed plates (9) are installed at the two ends of the top of the loading seat (8).

3. The IGBT module batch test device according to claim 2, characterized in that: A first rubber pad (11) is fixedly connected to the top of the loading seat (8), the working end of the second electric push rod (10) penetrates through the fixed plate (9) and is fixedly connected with a limiting clamping plate (12), and the clamping surface of the limiting clamping plate (12) is fixedly connected with a second rubber pad (13).

4. The IGBT module batch test device according to claim 2, characterized in that: The test assembly (5) comprises a fixed seat (14), an infrared receiver (15) is installed at the bottom of each corner of the fixed seat (14), an infrared emitter (16) is installed at the top of each corner of the loading seat (8), the infrared emitter (16) is matched with the infrared receiver (15), and the infrared receiver (15) is electrically connected with the control panel (7).

5. The IGBT module batch test device according to claim 4, characterized in that: The fixed seat (14) is fixedly connected to the bottom of the working end of the first electric push rod (6), a testing machine (17) is arranged below the fixed seat (14), and the testing machine (17) is electrically connected with the control panel (7).

6. The IGBT module batch test device according to claim 5, characterized in that: Telescopic rods (18) are installed at the top of each corner of the testing machine (17), and the top ends of the four telescopic rods (18) are fixedly connected with the bottom of the fixed seat (14).

7. The IGBT module batch test device according to claim 6, characterized in that: Buffer springs (19) are movably sleeved on the surfaces of the four telescopic rods (18), one end of the buffer spring (19) abuts against the fixed seat (14), and the other end of the buffer spring (19) abuts against the testing machine (17).

8. The IGBT module batch test device of claim 1, wherein: The test box (3) is designed as an open type at both ends, doors (20) are installed at the openings of the two ends of the test box (3), and a transparent observation window (21) is installed on the front of the test box (3).

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