A power module electrical performance test tool

Abstract

The utility model discloses a power module electrical performance test tool, including a test circuit board, and a banana socket terminal unit, a toggle switch unit and a power module test needle sleeve unit installed on the test circuit board; wherein the banana socket terminal unit is used to connect the power module under test and an external test device; the toggle switch unit is used to realize the voltage switch switching control and enable terminal control of the power module under test; the power module test needle sleeve unit realizes the plug-in connection between the power module under test and the test tool. The utility model is easy to operate, can carry large currents, and is soft to plug and unplug, durable, low in loss and easy to control, can realize the electrical performance test of the power module, has a wide range of applications, and greatly improves the efficiency of power module testing.

Description

Technical Field

[0001] The utility model relates to the technical field of power module testing, in particular to a power module electrical performance testing tool. Background Art

[0002] During the power module test process, a double-headed test hook is usually used to connect the power module under test with an external test device. This method is simple and easy to implement, but there are also some problems. For example, it is easy for the test hook to contact the power module under test and spark, the test efficiency is low and it is not suitable for mass production operations. Operators are prone to misoperation, causing the double-headed test hook to hook the wrong pin of the power module under test, etc., causing damage to the power module under test. Summary of the invention

[0003] The utility model aims to provide a power module electrical performance test tool to solve at least one problem existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model includes:

[0005] A power module electrical performance test tool, comprising a test circuit board, and a banana socket terminal unit, a toggle switch unit and a power module test needle sleeve unit installed on the test circuit board; wherein the banana socket terminal unit is used to connect the power module under test and an external test device; the toggle switch unit is used to realize voltage switch switching control and enable terminal control of the power module under test; and the power module test needle sleeve unit realizes the plug-in connection between the power module under test and the test tool.

[0006] Furthermore, a supporting screw is respectively provided on the four corners of the test circuit board.

[0007] Furthermore, the external test equipment includes a DC test power supply that provides an operating voltage for the power module under test, and a DC electronic load that provides a load power for the power module under test.

[0008] Furthermore, the test circuit board is an epoxy printed circuit board.

[0009] Furthermore, the banana socket terminal unit is composed of banana socket terminals J1, J2, J3, and J4 connected together.

[0010] Furthermore, the toggle switch unit is composed of a power switch K1 and an enable switch K2 connected to a PCB fiberboard via a silicone rubber cord.

[0011] Furthermore, the power module test needle sleeve unit is composed of power module test needle sleeves P1, P2, P3, P4, P5 and epoxy printed circuit board plug-in welding.

[0012] Further, J1 is connected to pin 1 of the power switch K1, J2 is connected to pin 1 of the enable switch K2, and the connection point is simultaneously connected to P3 and J3, and J4 is connected to P5 through an epoxy printed circuit board; P1 is connected to pin 2 of the power switch K1 through a connecting wire, P2 is suspended, P3 is connected to J2 and J3 through the epoxy printed circuit board, and is connected to pin 1 of the enable switch K2 through a connecting wire, and P4 is connected to pin 2 of the enable switch K2 through a connecting wire.

[0013] Compared with the prior art, the advantages of the present invention are as follows:

[0014] The utility model power module electrical performance test tool is formed by connecting banana socket terminals, toggle switches, and power module test pin sleeves through epoxy printed circuit board wiring. The banana socket realizes connection with external devices, the toggle switch realizes voltage switch switching control and enable terminal control of the power module under test, and the power module test pin sleeve realizes convenient plugging and unplugging of the power module under test and the test tool. The test pin sleeve can carry large current and is soft and durable, with low loss and easy to control. It can realize power module electrical performance testing, simplify the test steps of the power module, improve the production test efficiency of the power module, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] The symbols in the figure represent:

[0017] 1-Banana socket terminal unit; 2-Toggle switch unit; 3-Power module test pin socket unit. DETAILED DESCRIPTION

[0018] like Figure 1 As shown, the power module electrical performance test tool provided by the utility model includes a test circuit board, and a banana socket terminal unit, a toggle switch unit and a power module test pin sleeve unit installed on the test circuit board. Among them, the banana socket terminal unit is used to connect the power module under test and the external test equipment; the toggle switch unit is used to realize the voltage switch switching control and enable terminal control of the power module under test; the power module test pin sleeve unit realizes the plug-in connection between the power module under test and the test tool.

[0019] Preferably, a supporting screw is respectively provided on the four corners of the test circuit board for supporting the entire test circuit board.

[0020] The external test equipment includes a DC test power supply (providing operating voltage for the power module under test) and a DC electronic load (providing load power for the power module under test).

[0021] Embodiment 1:

[0022] In this embodiment: the test circuit board adopts an epoxy printed circuit board with a size of 150 mm×150 mm×2.5 mm.

[0023] Banana socket terminal unit 1 is composed of 4mm banana socket terminals J1, J2, J3, and J4, model JS-910B, two red and two black.

[0024] The toggle switch unit 2 is composed of a power switch K1 and an enable switch K2 connected to a PCB fiberboard through a silicone rubber cord. The power switch K1 and the enable switch K2 are of model MTS-203 / 6-pin 2-gear / red.

[0025] The power module test needle sleeve unit 3 is composed of power module test needle sleeves P1, P2, P3, P4, P5 and epoxy printed circuit board plug-in welding, and there is no electrical connection between these five needle sleeves.

[0026] In the above device, J1 is connected to pin 1 of the power switch K1 through a connecting wire, J2 is connected to pin 1 of the enable switch K2 through a connecting wire, and the connection point is simultaneously connected to P3 and J3, and J4 is connected to P5 through an epoxy printed circuit board; P1 is connected to pin 2 of the power switch K1 through a connecting wire, P2 is suspended, P3 is connected to J2 and J3 through an epoxy printed circuit board, and is connected to pin 1 of the enable switch K2 through a connecting wire, and P4 is connected to pin 2 of the enable switch K2 through a connecting wire.

[0027] The power module test needle sleeve adopts the product of Shenzhen Mingshuoda Technology Co., Ltd., model 1.0*9-2.7.

[0028] The support screw adopts M3*30+8 male and female studs.

[0029] The connecting wire adopts UL3135 super soft, 18#, (210*0.07mm) red silicone rubber soft wire.

[0030] The components in this embodiment function as follows:

[0031] Banana socket terminals J1 and J2 are used to connect the external DC power supply device to the power module under test (J1 is connected to the power supply device "+", and J2 is connected to the power supply device "-"), so as to provide working voltage for the power module under test (DC power supply device specifications require: output voltage range 0V~100V adjustable, current 0A~20A adjustable);

[0032] Banana socket terminals J3 and J4 are used to connect the external DC electronic load device to the power module under test (J3 is connected to the DC electronic load device "-", and J4 is connected to "+"), so as to provide load power to the power module under test (DC electronic load device specifications: output voltage range 0V~60V adjustable, current 0A~30A, power 2000W);

[0033] The toggle switch K1 is used to control the switch control of the input voltage of the power module under test, and the enable switch K2 is used to control the switch control of the enable end of the power module under test;

[0034] The power module test pin sockets P1, P2, P3, P4, and P5 are used to insert the power module under test for testing.

[0035] When the size and structure spacing of the five pins of the power module under test are consistent with the size and structure spacing of the power module test pin sleeve of the utility model, the test tool of the utility model can be used to quickly insert the power module under test. The utility model is easy to operate, and the reed structure used inside the test pin sleeve can carry large currents, and the plugging and unplugging is soft, durable, low loss and easy to control, which can realize the electrical performance test of the power module, has a wide range of applications, and greatly improves the efficiency of power module testing.

[0036] The specific operation of testing the power module using the test fixture of the utility model is as follows:

[0037] (1) External test equipment (including DC power supply equipment and DC electronic load equipment) are connected to the test fixture through banana sockets;

[0038] (2) Switches K1 and K2 are placed in the off position;

[0039] (3) For the power module under test, insert the test needle sleeve according to the pin marking position;

[0040] (4) The power switch K1 is closed to provide power to the power module under test. At this time, the DC electronic load device displays the output voltage of the power module under test. Press the OFF button of the DC electronic load device to provide load power to the power module under test.

[0041] (6) The enabling switch K2 is closed, and the power module under test has no output voltage;

[0042] (7) After the test is completed, turn the power switch K1 and the enable switch K2 to the off position, unplug the power module under test, and insert the next power module under test.

Claims

1. A power module electrical performance test tool, comprising a test circuit board, characterized in that: It also includes a banana socket terminal unit, a toggle switch unit and a power module test needle sleeve unit installed on the test circuit board; wherein the banana socket terminal unit is used to connect the power module under test and the external test equipment; the toggle switch unit is used to realize the voltage switch switching control and enable terminal control of the power module under test; the power module test needle sleeve unit realizes the plug-in connection between the power module under test and the test tooling.

2. The power module electrical performance test tool as claimed in claim 1, characterized in that: A supporting screw is respectively arranged on the four corners of the test circuit board.

3. The power module electrical performance test tool as claimed in claim 1, characterized in that: The external test equipment includes a DC test power supply for providing a working voltage for the power module under test and a DC electronic load for providing a load power for the power module under test.

4. The power module electrical performance test tool as claimed in any one of claims 1 to 3, characterized in that: The test circuit board is an epoxy printed circuit board.

5. The power module electrical performance test tool as claimed in any one of claims 1 to 3, characterized in that: The banana socket terminal unit (1) is composed of banana socket terminals J1, J2, J3 and J4 connected together.

6. The power module electrical performance test tool as claimed in claim 5, characterized in that: The toggle switch unit (2) is composed of a power switch K1 and an enabling switch K2 connected to a PCB fiberboard via a silicone rubber cord.

7. The power module electrical performance test tool as claimed in claim 6, characterized in that: The power module test needle sleeve unit (3) is composed of power module test needle sleeves P1, P2, P3, P4, P5 and an epoxy printed circuit board which are inserted and welded.

8. The power module electrical performance test tool as claimed in claim 7, characterized in that: The banana socket terminal J1 is connected to the 1st pin of the power switch K1, and the banana socket terminal J2 is connected to the 1st pin of the enable switch K2, and the connection point is also connected to the power module test pin sleeve P3 and the banana socket terminal J3, and the banana socket terminal J4 is connected to the power module test pin sleeve P5 through the epoxy printed circuit board; The power module test needle sleeve P1 is connected to pin 2 of the power switch K1 through a connecting wire, the power module test needle sleeve P2 is suspended, the power module test needle sleeve P3 is connected to the banana socket terminal J2 and the banana socket terminal J3 through an epoxy printed circuit board, and is connected to pin 1 of the enable switch K2 through a connecting wire, and the power module test needle sleeve P4 is connected to pin 2 of the enable switch K2 through a connecting wire.

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