A static test transfer device for a needle terminal half-bridge power module

Abstract

The present invention discloses a static test adapter device for a needle-shaped terminal half-bridge power module, comprising: a PCB board including two copper layers, module connection holes on the PCB board, a DC positive electrode power interface, a DC positive electrode measurement interface, an output electrode power interface, an output electrode measurement interface, a DC negative electrode power interface, a DC negative electrode measurement interface, an upper transistor drive interface, and a lower transistor drive interface connected to the PCB board; the module connection holes are used to connect the module under test; the DC positive electrode power interface, the DC positive electrode measurement interface, the DC negative electrode power interface, the DC negative electrode measurement interface, the output electrode power interface, and the output electrode measurement interface are connected to the module connection holes through the copper layers of the PCB board; the upper transistor drive interface and the lower transistor drive interface are connected to the corresponding module connection holes of the module drive terminals through the copper layers of the PCB board. This adapter board can achieve flexible connection between the needle-shaped terminal half-bridge power module and the static tester.

Description

Technical Field

[0001] The present invention belongs to the technical field of power module testing, and more specifically, relates to a static test adapter for a pin-terminal half-bridge power module. Background Art

[0002] Due to the flexibility of terminal position and good compatibility with PCB boards, power modules using pin terminals have been greatly developed, such as Infineon's EasyB series and Vincotech's flow series.

[0003] Static testing is an important part of power module testing. Static testers generally use high-current leads to connect to the module. For power modules with pin-shaped terminals, the terminals are pin-shaped, and the connecting leads can only be connected in the form of clips. In addition, a single electrode is generally composed of multiple terminals, and the terminals are arranged closely. First, a large number of clips are required, and second, the clips are easy to touch and short-circuit. This makes it inconvenient to connect the module to the static tester, and a static test adapter board is required for transfer. Summary of the invention

[0004] In view of the defects of the prior art, the present invention provides a static test adapter for a pin-terminal half-bridge power module, aiming to solve the problem that it is difficult to directly connect the pin-terminal power module and the static tester with leads.

[0005] The invention provides a static test adapter for a pin-terminal half-bridge power module, comprising: a PCB board with two copper layers, a module connection hole, a DC positive electrode power interface, an output electrode power interface, a DC negative electrode power interface, a DC positive electrode measurement interface, an output electrode measurement interface, a DC negative electrode measurement interface, an upper tube drive interface and a lower tube drive interface arranged on the PCB board; the DC positive electrode power interface, the output electrode power interface and the DC negative electrode power interface are used to be connected with a power lead of a static tester, and provide voltage and current for the module under test during static testing; the DC positive electrode measurement interface, the output electrode measurement interface and the DC negative electrode measurement interface are used to be connected with a measurement lead of the static tester, and are used to measure the voltage on a switch tube under test in the module under test during static testing; the upper tube drive interface and the lower tube drive interface are used to be connected with a drive lead of the static tester, and provide a drive signal for the switch tube under test in the module under test.

[0006] Furthermore, the DC positive electrode power interface, the DC positive electrode measurement interface, the DC negative electrode power interface, the DC negative electrode measurement interface, the output electrode power interface and the output electrode measurement interface are connected to the module connection holes corresponding to the main power terminals of the module through the copper layer of the PCB board.

[0007] Further, the upper transistor drive interface and the lower transistor drive interface are connected to the module connection holes corresponding to the module drive terminals through the copper layer of the PCB board.

[0008] Further, the module connection holes are via pads, and the pin terminals of the module under test are soldered in the module connection holes by soldering and connected to each interface on the PCB board.

[0009] Further, each interface uses a banana jack socket for matching with the banana lead of the static tester.

[0010] The present invention also provides a pin terminal half-bridge power module, including a main power positive terminal, a main power negative terminal, a main power output terminal, an upper transistor drive terminal, a lower transistor drive terminal, a thermistor terminal, and a static test transfer device; the static test transfer device is used to provide a transfer interface for the connection between the module under test and the power module during static measurement; the static test transfer device includes: a PCB board with two layers of copper layers, module connection holes, a DC positive electrode power interface, an output electrode power interface, a DC negative electrode power interface, a DC positive electrode measurement interface, an output electrode measurement interface, a DC negative electrode measurement interface, an upper transistor drive interface, and a lower transistor drive interface arranged on the PCB board; the DC positive electrode power interface, the output electrode power interface, and the DC negative electrode power interface are used to connect to the power leads of the static tester and provide voltage and current for the module under test during static test; the DC positive electrode measurement interface, the output electrode measurement interface, and the DC negative electrode measurement interface are used to connect to the measurement leads of the static tester and measure the voltage on the switch tube under test in the module under test during static test; the upper transistor drive interface and the lower transistor drive interface are used to connect to the drive leads of the static tester and provide drive signals for the switch tube under test in the module under test.

[0011] Further, the module connection holes are via pads, and the pin terminals of the module under test are soldered in the module connection holes by soldering and connected to each interface on the PCB board.

[0012] Further, each interface uses a banana jack socket for matching with the banana lead of the static tester.

[0013] By using a transfer board to connect to the module under test and leading out the interfaces of each terminal, the present invention enables the pin terminal half-bridge power module and the static tester to be directly connected by banana connecting wires, realizing a reliable and flexible connection between the two; in addition, by separately leaving a module connection hole area in the center of the PCB board for module connection, and its position corresponding to the terminals of the module, the flexibility of the connection between the test board and the module is increased. Description of the Drawings

[0014] Figure 1It is the external view of the module under test corresponding to the static test adapter device for the needle-shaped terminal half-bridge power module provided by the embodiment of the present invention;

[0015] Figure 2 It is the three-dimensional layout view of the static test adapter device installed with the module under test provided by the embodiment of the present invention;

[0016] Figure 3 It is the top layout view of the static test adapter device provided by the embodiment of the present invention;

[0017] Figure 4 It is the upper copper layer distribution diagram of the PCB board of the static test adapter device provided by the embodiment of the present invention;

[0018] Figure 5 It is the lower copper layer distribution diagram of the PCB board of the static test adapter device provided by the embodiment of the present invention;

[0019] In all the drawings, the same reference numerals are used to represent the same elements or structures, where: 1 is the main power positive terminal, 2 is the main power negative terminal, 3 is the main power output terminal, 4 is the upper transistor drive terminal, 5 is the lower transistor drive terminal, 6 is the thermistor terminal, 7 is the DC positive electrode power interface, 8 is the DC positive electrode measurement interface, 9 is the DC negative electrode power interface, 10 is the DC negative electrode measurement interface, 11 is the output electrode power interface, 12 is the output electrode measurement interface, 13 is the upper transistor drive interface, 14 is the lower transistor drive interface, 15 is the PCB board, 16 is the module under test, 17 is the module connection hole, 18 is the DC positive electrode copper layer, 19 is the output electrode copper layer, 20 is the DC negative electrode copper layer, 21 is the upper transistor drive connection copper wire, and 22 is the lower transistor drive connection copper wire. Detailed implementation manners

[0020] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The present invention provides a static test adapter device for a needle-shaped terminal half-bridge power module, which can realize the connection between the needle-shaped terminal half-bridge power module and the static tester; the static test adapter device for the needle-shaped terminal half-bridge power module includes: a PCB board including two layers of copper layers, a module connection hole provided on the PCB board, a DC positive electrode power interface, a DC positive electrode measurement interface, an output electrode power interface, an output electrode measurement interface, a DC negative electrode power interface, a DC negative electrode measurement interface, an upper transistor drive interface, and a lower transistor drive interface connected to the PCB board.

[0022] Among them, the module connection holes are used to connect the pin terminals of the module under test. The DC positive electrode power interface, DC positive electrode measurement interface, DC negative electrode power interface, DC negative electrode measurement interface, output electrode power interface, and output electrode measurement interface are connected to the corresponding module connection holes of the module main power terminals through the copper layer of the PCB board. The upper transistor drive interface and the lower transistor drive interface are connected to the corresponding module connection holes of the module drive terminals through the copper layer of the PCB board.

[0023] The DC positive electrode power interface, output electrode power interface, and DC negative electrode power interface are used to connect to the power leads of the static tester to provide voltage and current for the switch tubes under test in the module under test during static testing. The DC positive electrode measurement interface, output electrode measurement interface, and DC negative electrode measurement interface are used to connect to the measurement leads of the static tester to measure the voltage across the switch tubes under test in the module under test. The upper transistor drive interface and the lower transistor drive interface are used to connect to the drive leads of the static tester to provide drive signals for the switch tubes under test in the module under test.

[0024] In the embodiment of the present invention, the pin terminals of the module under test can be welded into the module connection holes by welding to be connected to each interface on the PCB board.

[0025] As an embodiment of the present invention, each interface uses a banana plug socket to match the banana plug leads of the static tester.

[0026] Since the present invention uses an adapter board to lead out each terminal of the module, it enables the pin terminal half-bridge power module and the static tester to be directly connected by banana plug leads, achieving reliable and flexible connection between the two.

[0027] To further illustrate the static test adapter device for the pin terminal half-bridge power module provided by the embodiment of the present invention, the technical solution of the present invention will be further described below in conjunction with the drawings and through specific embodiments.

[0028] The present invention provides a static test adapter device for a pin terminal half-bridge power module, aiming to realize the connection between the pin terminal half-bridge power module and the static tester. As Figure 1 shown, it is the external view of the module under test corresponding to the static test adapter device for the pin terminal half-bridge power module provided by this embodiment; its pin terminals are divided into: main power positive terminal 1, main power negative terminal 2, main power output terminal 3, upper transistor drive terminal 4, lower transistor drive terminal 5, and thermistor terminal 6.

[0029] Figure 2 Shown is the three-dimensional layout diagram of the static test adapter device installed with the module under test. Figure 3The figure shows the top layout diagram of the static test adapter device provided by the embodiment of the present invention; the static test adapter device includes: a DC positive electrode power interface 7, a DC positive electrode measurement interface 8, a DC negative electrode power interface 9, a DC negative electrode measurement interface 10, an output electrode power interface 11, an output electrode measurement interface 12, an upper transistor drive interface 13, a lower transistor drive interface 14, a PCB board 15, and module connection holes 17 on the PCB board.

[0030] The DC positive electrode power interface 7, the output electrode power interface 11, and the DC negative electrode power interface 9 are used to connect to the power leads of the static tester to provide voltage and current to the DUT switch tube in the DUT module 16 during static testing; the DC positive electrode measurement interface 8, the output electrode measurement interface 12, and the DC negative electrode measurement interface 10 are used to connect to the measurement leads of the static tester to measure the voltage on the DUT switch tube in the DUT module 16; the upper transistor drive interface 13 and the lower transistor drive interface 14 are used to connect to the drive leads of the static tester to provide drive signals to the DUT switch tube in the DUT module 16; each interface uses a banana plug socket and matches the banana plug leads of the static tester. The respective pin terminals 1 - 6 of the DUT module 16 are connected to the module connection holes 17 on the PCB board 15 by welding and are connected to the corresponding interfaces 7 - 14 through the copper layer of the PCB board 15.

[0031] Figure 4 The figure shows the upper - layer copper layer distribution diagram of the PCB board of the static test adapter device provided by the embodiment of the present invention, Figure 5 The figure shows the lower - layer copper layer distribution diagram of the PCB board of the static test adapter device provided by the embodiment of the present invention; among them, the DC positive electrode power interface 7 and the DC positive electrode measurement interface 8 are connected to the corresponding module connection holes 17 through the DC positive electrode copper layer 18 and then connected to the main power positive terminal 1 of the module; the DC negative electrode power interface 9 and the DC negative electrode measurement interface 10 are connected to the corresponding module connection holes 17 through the DC negative electrode copper layer 20 and then connected to the main power negative terminal 2 of the module; the output electrode power interface 11 and the output electrode measurement interface 12 are connected to the corresponding module connection holes 17 through the output electrode copper layer 19 and then connected to the main power output terminal 3 of the module; the upper transistor drive interface and the lower transistor drive interface are respectively connected to the corresponding module connection holes through the upper transistor drive connection copper wire 21 and the lower transistor drive connection copper wire 22 and then respectively connected to the upper transistor drive terminal 4 and the lower transistor drive terminal 5.

[0032] Through the above - mentioned technical solution, compared with the prior art, since a transfer board is used to lead out each terminal of the module, the problem of difficult connection between the static tester and the pin - terminal half - bridge power module is solved, enabling the pin - terminal half - bridge power module and the static tester to be directly connected by banana plug leads, achieving reliable and flexible connection between the two.

[0033] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A static test transfer device for a needle-shaped terminal half-bridge power module, characterized in that Comprising: A PCB board with two copper layers, module connection holes, a DC positive electrode power interface, an output electrode power interface, a DC negative electrode power interface, a DC positive electrode measurement interface, an output electrode measurement interface, a DC negative electrode measurement interface, an upper transistor drive interface, and a lower transistor drive interface provided on the PCB board; The two upper transistor drive interfaces are connected to the corresponding module connection holes through upper transistor drive connection copper wires and then connected to the upper transistor drive terminals of the module under test; the two lower transistor drive interfaces are connected to the corresponding module connection holes through lower transistor drive connection copper wires and then connected to the lower transistor drive terminals of the module under test; The DC positive electrode power interface, the output electrode power interface, and the DC negative electrode power interface are used to connect to the power leads of the static tester and provide voltage and current to the module under test during static testing; The DC positive electrode measurement interface, the output electrode measurement interface, and the DC negative electrode measurement interface are used to connect to the measurement leads of the static tester and measure the voltage on the transistor under test in the module under test during static testing; The upper transistor drive interface and the lower transistor drive interface are used to connect to the drive leads of the static tester and provide drive signals to the transistor under test in the module under test.

2. The static test adapter device according to claim 1, wherein The DC positive electrode power interface, the DC positive electrode measurement interface, the DC negative electrode power interface, the DC negative electrode measurement interface, the output electrode power interface, and the output electrode measurement interface are connected to the corresponding module connection holes of the module main power terminals through the copper layer of the PCB board.

3. The static test adapter device according to claim 1, wherein The module connection holes are via pads, and the pin terminals of the module under test are welded in the module connection holes by welding and connected to each interface on the PCB board.

4. The static test transfer device according to any one of claims 1-3, characterized in that Each interface uses a banana plug socket for matching with the banana plug leads of the static tester.

5. A needle-shaped terminal half-bridge power module, characterized in that, Comprising a main power positive terminal (1), a main power negative terminal (2), a main power output terminal (3), an upper transistor drive terminal (4), a lower transistor drive terminal (5), a thermistor terminal (6), and a static test adapter; The static test adapter is used to provide an adapter interface for the connection between the module under test and the power module during static measurement; The static test adapter comprises: a PCB board with two copper layers, module connection holes, a DC positive electrode power interface, an output electrode power interface, a DC negative electrode power interface, a DC positive electrode measurement interface, an output electrode measurement interface, a DC negative electrode measurement interface, an upper transistor drive interface, and a lower transistor drive interface provided on the PCB board; the two upper transistor drive interfaces are connected to the corresponding module connection holes through upper transistor drive connection copper wires and then connected to the upper transistor drive terminals of the module under test; the two lower transistor drive interfaces are connected to the corresponding module connection holes through lower transistor drive connection copper wires and then connected to the lower transistor drive terminals of the module under test; The DC positive electrode power interface, output electrode power interface, and DC negative electrode power interface are used to connect to the power leads of the static tester and provide voltage and current to the module under test during static testing; the DC positive electrode measurement interface, output electrode measurement interface, and DC negative electrode measurement interface are used to connect to the measurement leads of the static tester and measure the voltage on the switch tube under test in the module under test during static testing; the upper tube drive interface and lower tube drive interface are used to connect to the drive leads of the static tester to provide drive signals to the switch tube under test in the module under test.

6. The needle-shaped terminal half-bridge type power module according to claim 5, characterized in that, The module connection holes are via pads, and the pin terminals of the module under test are soldered into the module connection holes by soldering and connected to each interface on the PCB board.

7. The needle-shaped terminal half-bridge type power module according to claim 5 or 6, characterized in that, Each interface uses a banana plug socket to match the banana plug leads of the static tester.

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