Power supply module test tool

Abstract

The utility model discloses a power supply module test jig, which relates to the technical field of power supply module test, and comprises a test board assembly used for placing a power supply module to be tested; the power module locking mechanism comprises a pin shaft, a swing plate, a pressing wheel, an annular anti-skid convex strip, a pin rod, a reset spring, a locking hole and a magnet; the pin shaft is fixedly arranged at the rear end of the inner side of the containing groove, the swing plate is rotationally arranged at the bottom of the outer side of the pin shaft in a sleeving mode through a bearing, the outer side of the pin shaft is sleeved with a torsional spring, and the torsional spring is fixedly connected between the pin shaft and the swing plate. The power module to be tested can be compressed, fixed and unfixed from the front surface of the test board body, the test board can be suitable for power modules to be tested with different widths, the operation difficulty and the physical strength expenditure of operators are reduced, and the test board is more convenient in actual use.

Description

Technical Field

[0001] This utility model relates to the field of power module testing technology, and in particular to a power module testing fixture. Background Technology

[0002] The power module manufacturing process requires specialized testing and experimentation on the power module's functions, power calibration, lifespan, and performance. In order to improve testing efficiency and results, auxiliary fixtures are used to assist in the testing process.

[0003] A search revealed that utility model patent CN219456435U discloses a power module testing fixture, including a test base. A left limiting stage is fixed to the left side of the top surface of the test base, and a right limiting stage is fixed to the right side of the top surface of the test base. An installation notch is provided on the top surface of the left limiting stage, and a quick testing fixture is fixed in the installation notch. The quick testing fixture includes an operating rod and a mounting base. A first rotating joint and a second rotating joint are respectively provided on the left and right sides of the top of the mounting base. The first rotating joint is connected to a first connecting block, and a third rotating joint is provided on the first connecting block.

[0004] However, the aforementioned power module testing fixture still has some drawbacks in actual use. The most obvious one is that when using the quick test fixture to clamp and fix the power module and then release it, the first link used to operate the quick test fixture is located on the side of the fixture, while the tester often stands in front of the fixture to perform the test operation. Therefore, it is often inconvenient to operate the first link, which not only increases the difficulty of operation, but also increases the physical exertion of the operator.

[0005] Therefore, it is necessary to invent a power module testing fixture to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a power module testing fixture that allows for the clamping and unclamping of the power module under test from the front of the test bench body. It is applicable to power modules of different widths, reducing operational difficulty and the physical exertion of operators, and is more convenient in actual use. This addresses the problem mentioned in the background art where, in the actual process of clamping and unclamping a power module using a quick testing fixture, the first connecting rod used to operate the quick testing fixture is located on the side of the fixture, while the tester often stands in front of the fixture to perform the testing operation. Therefore, operating the first connecting rod is often inconvenient, increasing both operational difficulty and the physical exertion of the operator.

[0007] According to one aspect of this disclosure, the following technical solution is provided: a power module testing fixture, comprising:

[0008] A test bench assembly for placing the power module under test;

[0009] A power module locking mechanism, comprising a pin, a swing plate, a pressure wheel, an annular anti-slip ridge, a pin rod, a return spring, a locking hole, and a magnet;

[0010] The pin is fixedly installed at the rear end of the inner side of the receiving groove. The swing plate is rotatably sleeved on the bottom outer side of the pin via a bearing. A torsion spring is sleeved on the outer side of the pin and fixedly connected between the pin and the swing plate. The pressure wheel is fixedly installed at the front end of the top of the swing plate. Multiple annular anti-slip ridges are provided, and the multiple annular anti-slip ridges are evenly fixedly installed on the outer side of the pressure wheel. The pin rod slides vertically through the front end of the top of the swing plate. The return spring is sleeved on the outer side of the pin rod and fixedly connected between the swing plate and the pin rod. Multiple locking holes and magnets are provided. The multiple locking holes are evenly opened on the inner side of the placement groove with the pin rod as the center. The multiple magnets are respectively fixedly installed on the inner side of the multiple locking holes and the bottom end of the pin rod; and

[0011] An adjustable test mechanism is used to test the power supply module under test.

[0012] According to at least one embodiment of the power module test fixture of the present disclosure, the test bench assembly includes a test bench body, a base and a placement slot, the base being fixedly disposed at the bottom of the test bench body and the placement slot being formed at the top of the test bench body.

[0013] According to at least one embodiment of the power module test fixture of the present disclosure, the test bench assembly further includes a receiving groove and a clearance channel, the receiving groove being opened inside one side of the placement groove, the receiving groove being opened at the bottom of the test bench body and communicating with the placement groove.

[0014] According to at least one embodiment of the power module test fixture of this disclosure, the adjustable test mechanism includes a first adjusting screw, a mounting plate, a guide rail, and a sliding frame. Two mounting plates are provided, and the two mounting plates are rotatably sleeved on both ends of the outer side of the first adjusting screw through bearings and are both fixedly connected to the test bench body. The guide rail is fixedly disposed between the two mounting plates. The sliding frame is slidably sleeved on the top of the guide rail and sleeved on the outer side of the first adjusting screw and threadedly connected to the first adjusting screw.

[0015] According to at least one embodiment of the power module test fixture of this disclosure, the adjustable test mechanism further includes a second adjusting screw, a lifting seat, and a test module. The second adjusting screw passes through the sliding frame in a vertical direction and is threadedly connected to the sliding frame. The lifting seat is rotatably mounted on the bottom end of the second adjusting screw via a bearing. The test module is detachably mounted on the bottom of the lifting seat.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] This invention features a power module locking mechanism. After the power module under test is placed, the pin is moved to the right. The pin causes a swing plate to rotate around the pin shaft. This rotation of the swing plate causes the pressure wheel to rotate synchronously, continuously moving the pressure wheel closer to the power module under test. When the pressure wheel, along with multiple annular anti-slip protrusions, adheres to the side of the power module under test and, in conjunction with the inner wall of the placement slot, presses it down. The pin compresses the return spring, simultaneously causing the magnet at its bottom to enter the adjacent locking hole. Now locked, the magnet at the bottom of the pin attracts the magnet inside the locking hole. After the subsequent test is completed, pull the pin upward, and the pin will cause the two magnets to disengage. At this time, under the action of the torsion spring, the swing plate drives the clamping wheel into the receiving groove and is stored. Compared with existing similar equipment, this utility model can perform the clamping and unlocking operations of the power module under test from the front of the test platform body, and it can be applied to power modules under test of different widths, reducing the difficulty of operation and the physical exertion of operators, making it more convenient in actual use. Attached Figure Description

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 This is a schematic diagram of the overall structure of a power module test fixture according to one embodiment of the present disclosure.

[0020] Figure 2 This is a schematic diagram of the test bench assembly structure of a power module test fixture according to one embodiment of the present disclosure.

[0021] Figure 3 This is a schematic diagram of the power module locking mechanism and the adjustable testing mechanism of a power module testing fixture according to one embodiment of the present disclosure.

[0022] The specific labels in the attached figures are as follows:

[0023] 1. Test bench assembly; 11. Test bench body; 12. Base; 13. Placement slot; 14. Receiving slot; 15. Clearance passage;

[0024] 2. Power module locking mechanism; 21. Pin; 22. Swing plate; 23. Pressure wheel; 24. Annular anti-slip ridge; 25. Pin; 26. Return spring; 27. Locking hole; 28. Magnet;

[0025] 3. Adjustable testing mechanism; 31. First adjusting screw; 32. Mounting plate; 33. Guide rail; 34. Sliding frame; 35. Second adjusting screw; 36. Lifting seat; 37. Testing module. Detailed Implementation

[0026] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0027] Figure 1 This is a schematic diagram of the overall structure of a power module test fixture according to one embodiment of the present disclosure.

[0028] Figure 2 This is a schematic diagram of the test bench assembly 1 of a power module test fixture according to one embodiment of the present disclosure.

[0029] Figure 3 This is a schematic diagram of the power module locking mechanism 2 of a power module test fixture according to one embodiment of the present disclosure.

[0030] like Figures 1-3 As shown, the power module test fixture disclosed herein may include components such as: test bench assembly 1, power module locking mechanism 2, and adjustable test mechanism 3.

[0031] like Figure 2As shown in this disclosure, the test bench assembly 1 includes a test bench body 11, a base 12, a placement slot 13, a receiving slot 14, and a clearance channel 15. The base 12 is fixedly disposed at the bottom of the test bench body 11, the placement slot 13 is opened at the top of the test bench body 11, the receiving slot 14 is opened inside one side of the placement slot 13, and the receiving slot 14 is opened at the bottom of the test bench body 11 and communicates with the placement slot 13.

[0032] Therefore, the power module under test can be placed in the placement slot 13 and the power module locking mechanism 2 can be stored in the receiving slot 14. At the same time, the placement slot 13 can also work with the power module locking mechanism 2 to press and fix the power module under test.

[0033] like Figure 3 As shown, in a preferred embodiment, the power module locking mechanism 2 includes a pin 21, a swing plate 22, a pressure wheel 23, an annular anti-slip ridge 24, a pin 25, a return spring 26, a locking hole 27, and a magnet 28. The pin 21 is fixedly disposed at the rear end of the inner side of the receiving groove 14. The swing plate 22 is rotatably sleeved on the bottom outer side of the pin 21 via a bearing. A torsion spring is sleeved on the outer side of the pin 21, and the torsion spring is fixedly connected between the pin 21 and the swing plate 22. The pressure wheel 23 is fixedly disposed at the front end of the top of the swing plate 22. Multiple annular anti-slip protrusions 24 are provided, and the multiple annular anti-slip protrusions 24 are evenly fixedly provided on the outside of the pressure wheel 23. The pin 25 is slidably provided through the top front end of the swing plate 22 in the vertical direction. The reset spring 26 is sleeved on the outside of the pin 25 and fixedly connected between the swing plate 22 and the pin 25. Multiple locking holes 27 and magnets 28 are provided. The multiple locking holes 27 are evenly opened on the inside of the placement groove 13 with the pin shaft 21 as the center. The multiple magnets 28 are respectively fixedly provided on the inside of the multiple locking holes 27 and the bottom end of the pin 25.

[0034] Therefore, after the power supply module under test is placed, the pin 25 can be moved to the right. At this time, the pin 25 drives the swing plate 22 to rotate around the pin 21. When the swing plate 22 rotates, it drives the clamping wheel 23 to rotate synchronously, so that the clamping wheel 23 continues to move closer to the power supply module under test. When the clamping wheel 23 drives multiple annular anti-slip protrusions 24 to fit against the side of the power supply module under test and presses it against the inner wall of the placement groove 13, the pin 25 is pressed down. The pin 25 compresses the return spring 26 and at the same time drives the magnet 28 at its bottom to enter the adjacent locking hole 27 to lock. At this point, the magnet 28 at the bottom of the pin 25 attracts the magnet 28 inside the locking hole 27. After the subsequent test is completed, the pin 25 is pulled upward, and the two magnets 28 are disengaged from each other. At this time, under the action of the torsion spring, the swing plate 22 drives the clamping wheel 23 into the inner side of the receiving groove 14 and is stored. Compared with existing similar equipment, the clamping and fixing and unfixing operations of the power module under test can be performed from the front of the test platform body 11. It can also be applied to power modules under test of different widths, reducing the difficulty of operation and the physical exertion of operators, and is more convenient in actual use.

[0035] like Figure 3 As shown in this disclosure, the adjustable testing mechanism 3 includes a first adjusting screw 31, a mounting plate 32, a guide rail 33, a sliding frame 34, a second adjusting screw 35, a lifting seat 36, and a testing module 37. Two mounting plates 32 are provided, rotatably connected to the outer ends of the first adjusting screw 31 via bearings and both are fixedly connected to the test platform body 11. The guide rail 33 is fixedly disposed between the two mounting plates 32. The sliding frame 34 is slidably mounted on the top of the guide rail 33 and is threadedly connected to the outer side of the first adjusting screw 31. The second adjusting screw 35 passes vertically through the sliding frame 34 and is threadedly connected to it. The lifting seat 36 is rotatably mounted on the bottom end of the second adjusting screw 35 via bearings. The testing module 37 is detachably disposed at the bottom of the lifting seat 36.

[0036] Therefore, the first adjusting screw 31 is rotated, and after the first adjusting screw 31 rotates, it drives the sliding frame 34 to slide along the guide rail 33, thereby adjusting the position of the test module 37. Then, the second adjusting screw 35 is rotated. When the second adjusting screw 35 rotates, it drives the lifting seat 36, which is limited by the two guide rods, to move down continuously. During the downward movement of the lifting seat 36, the test module 37 moves down synchronously until the test module 37 completes the connection with the power supply module under test.

[0037] It should also be noted that the test module 37 is a technology that has been disclosed in the prior art and is not a necessary technical feature of this application. Therefore, this application will not elaborate on the specific structure of the test module 37 here.

[0038] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0039] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A power module testing fixture, characterized in that, include: A test bench assembly for placing the power module under test; A power module locking mechanism, comprising a pin, a swing plate, a pressure wheel, an annular anti-slip ridge, a pin rod, a return spring, a locking hole, and a magnet; The pin is fixedly installed at the rear end of the inner side of the receiving groove. The swing plate is rotatably sleeved on the bottom outer side of the pin via a bearing. A torsion spring is sleeved on the outer side of the pin and fixedly connected between the pin and the swing plate. The pressure wheel is fixedly installed at the front end of the top of the swing plate. Multiple annular anti-slip ridges are provided, and the multiple annular anti-slip ridges are evenly fixedly installed on the outer side of the pressure wheel. The pin rod slides vertically through the front end of the top of the swing plate. The return spring is sleeved on the outer side of the pin rod and fixedly connected between the swing plate and the pin rod. Multiple locking holes and magnets are provided. The multiple locking holes are evenly opened on the inner side of the placement groove with the pin rod as the center. The multiple magnets are respectively fixedly installed on the inner side of the multiple locking holes and the bottom end of the pin rod; and An adjustable test mechanism is used to test the power supply module under test.

2. The power module testing fixture according to claim 1, characterized in that: The test bench assembly includes a test bench body, a base, and a placement slot. The base is fixedly disposed at the bottom of the test bench body, and the placement slot is opened at the top of the test bench body.

3. The power module testing fixture according to claim 2, characterized in that: The test bench assembly also includes a receiving slot and a clearance channel. The receiving slot is located inside one side of the placement slot and is located at the bottom of the test bench body and communicates with the placement slot.

4. The power module testing fixture according to claim 3, characterized in that: The adjustable testing mechanism includes a first adjusting screw, a mounting plate, a guide rail, and a sliding frame. There are two mounting plates, which are rotatably sleeved on both ends of the first adjusting screw via bearings and are fixedly connected to the test bench body. The guide rail is fixedly disposed between the two mounting plates. The sliding frame is slidably sleeved on the top of the guide rail and is sleeved on the outside of the first adjusting screw and threadedly connected to the first adjusting screw.

5. The power module testing fixture according to claim 4, characterized in that: The adjustable testing mechanism further includes a second adjusting screw, a lifting seat, and a testing module. The second adjusting screw passes through the sliding frame in a vertical direction and is threadedly connected to the sliding frame. The lifting seat is rotatably mounted on the bottom end of the second adjusting screw via a bearing. The testing module is detachably mounted on the bottom of the lifting seat.

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