CPCI board card testing device

Abstract

The utility model discloses a CPCI (Compact Peripheral Component Interconnect) board card testing device, which comprises a testing box and a testing assembly arranged in the testing box, the test box comprises a mounting seat, a box cover and a test interface board, wherein the box cover and the test interface board are respectively arranged on two adjacent sides of the mounting seat. The test assembly comprises a CPU mainboard, a probe board and a backboard. A first mounting structure, a second mounting structure and a mounting groove structure are arranged in the mounting seat; the back plate is arranged in the mounting seat through the second mounting structure, and the end face is opposite to the power module; the probe plate is arranged in the mounting seat through a second mounting structure, and the end surface is opposite to the box cover; the CPU mainboard is installed in the installation seat in a sliding mode through the installation groove structure and is electrically connected with the probe board and the back board. According to the utility model, the electrical performance of the CPCI board card can be tested after the SMT is completed, so that the testing process is advanced, the quality problem of the CPCI board card can be found in time, the production efficiency is improved, and the loss cost is reduced at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of board card testing, in particular to a CPCI board card testing device. Background Art

[0002] The production process of CPCI board cards includes surface mount technology (SMT), manual insertion of electrical connectors, selective wave soldering, structural component assembly, and board card testing. After the production of CPCI board cards is completed, testers usually transfer the entire CPCI board card to the test and inspection station and insert it into the CPCI industrial control chassis for electrical signal testing. However, this test is for the completed CPCI board card, so the process of detecting abnormalities is too lagging. As a result, once there are quality problems with the CPCI board card, the losses will be too high, which is not conducive to mass production of products and control of quality consistency. Summary of the Utility Model

[0003] The utility model provides a CPCI board card testing device to overcome the technical problem that testing and inspection are carried out after the CPCI board card is completely produced, resulting in too high production costs and being not conducive to mass production of products and control of quality consistency.

[0004] To achieve the above object, the technical solution of the utility model is as follows:

[0005] A CPCI board card testing device includes a test box, a test component, and a power module arranged inside the test box; the test box includes a mounting seat, a box cover and a test interface board respectively arranged on two adjacent sides of the mounting seat, and the box cover is movably connected with the mounting seat; the power module is arranged on one side of the mounting seat close to the test interface board and is electrically connected with the test interface board; the test component includes a CPU main board, a probe board, and a backplane; inside the mounting seat, a first mounting structure for mounting a CPCI board card, a second mounting structure for mounting the probe board and the backplane, and a mounting groove structure for mounting the CPU main board are successively arranged along the direction away from the box cover; the backplane is arranged inside the mounting seat through the second mounting structure and its end face is opposite to the power module; the probe board is arranged inside the mounting seat through the second mounting structure and its end face is opposite to the box cover; the CPU main board is slidably mounted inside the mounting seat through the mounting groove structure and is electrically connected with the probe board and the backplane respectively.

[0006] Further, the mounting seat includes a bottom plate, a first side plate and a second side plate oppositely arranged at two ends of the bottom plate; the mounting groove structure includes a first sliding groove and a second sliding groove oppositely arranged on the end faces of the first side plate and the second side plate.

[0007] Further, the second mounting structure includes a first mounting plate assembly and a second mounting plate assembly oppositely arranged on the end faces of the first side plate and the second side plate; the first mounting plate assembly includes a first mounting plate and a plurality of first baffles, and the second mounting plate assembly includes a second mounting plate and a plurality of second baffles; a space for arranging the back plate is formed between the first mounting plate and the plurality of first baffles and between the second mounting plate and the plurality of second baffles; the probe board is arranged on the first mounting plate and the second mounting plate, and the back plate is arranged in the space for arranging the back plate.

[0008] Further, the first mounting structure includes a support assembly oppositely arranged on the end faces of the first side plate and the second side plate and positioning columns for restricting the position of the CPCI board; the support assembly includes a plurality of support blocks, the CPCI board is arranged on the support blocks and abuts against the positioning columns.

[0009] Further, a plurality of polyimide cushion blocks are arranged on the end face of the box cover close to the probe board.

[0010] Beneficial effects: The utility model provides a CPCI board testing device, which includes a testing box and a testing component for testing the CPCI board. The testing component is installed in the testing box through the second mounting structure and the mounting groove structure. The CPCI board can be arranged in the testing box through the first mounting structure. Through this testing device, the electrical performance of the CPCI board can be tested after the CPCI board completes SMT, so as to advance the testing process, ensure timely discovery of the quality problems of the CPCI board, solve the lag problem existing in the testing after the production of the CPCI board is completed, improve the production efficiency, and reduce the loss cost at the same time. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 It is a schematic structural diagram of a CPCI board testing device in the present utility model;

[0013] Figure 2 It is a schematic structural diagram of the CPCI board testing device in the present utility model after removing the box cover;

[0014] Figure 3 It is a schematic structural diagram of the CPCI board testing device in the present utility model after removing the box cover and the probe board;

[0015] Figure 4 This is a schematic structural view of the CPCI board test device of the present utility model with the case cover, probe board and CPU main board removed;

[0016] Figure 5 This is a rear view of the CPCI board test device of the present utility model;

[0017] Figure 6 This is a schematic structural view of the case cover of the present utility model.

[0018] In the figure: 1, test case; 11, mounting seat; 111, bottom plate; 12, case cover; 121, polyimide cushion block; 13, test interface board; 131, power interface connector; 132, test interface connector; 14, first mounting structure; 141, positioning post; 142, support block; 15, second mounting structure; 151, first mounting plate; 152, first baffle; 16, mounting groove structure; 2, power module; 3, CPU main board; 4, probe board; 5, backplane. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] This embodiment provides a CPCI board test device, as shown in Figure 1 and Figure 2As shown in the figure, it includes a test box 1, a test component and a power module 2 arranged inside the test box; the test box 1 includes a mounting base 11, a box cover 12 and a test interface board 13 respectively arranged on two adjacent sides of the mounting base, and the box cover 12 is movably connected to the mounting base 11. The power module 2 is arranged on one side of the mounting base 11 close to the test interface board and is electrically connected to the test interface board 13; the test component includes a CPU main board 3, a probe board 4 and a backplane 5; inside the mounting base 11, there are successively arranged a first mounting structure 14 for mounting a CPCI board, a second mounting structure 15 for mounting the probe board and the backplane, and a mounting groove structure 16 for mounting the CPU main board along the direction away from the box cover 12; specifically, the backplane 5 is arranged in the mounting base through the second mounting structure 15 and its end face is opposite to the power module 2; the probe board 4 is arranged in the mounting base through the second mounting structure 15 and its end face is opposite to the box cover 12; the CPU main board 3 is slidably mounted in the mounting base 11 through the mounting groove structure 16 and is electrically connected to the probe board 4 and the backplane 5 respectively.

[0021] Specifically, in this embodiment, the CPCI board test device is electrically connected to the signal test and analysis system through the test interface board 13. When it is necessary to test the CPCI board, the CPCI board is placed on the first mounting structure 14 and positioned, and then the box cover 12 is covered, so that the test solder pads of the CPCI board are in close contact with the probes on the probe board 4. The electrical signals of the CPCI board are sequentially transmitted to the CPU main board 3 and the backplane 5 through the probe board 4, and finally transmitted to the signal test and analysis system through the test interface board 13 electrically connected to the backplane 5, so as to realize the test of the CPCI board. The test device in this embodiment has a simple structure. When powering on and testing the CPCI board, only the board to be tested needs to be placed on the test device, and the electrical signal test of the board is realized through the contact between the probes on the test device and the test position, which reduces the assembly accuracy. And this test device has a long life of more than 300,000 times, and has the characteristics of convenient operation, economic practicality, safety and reliability. It can solve the electrical performance test and inspection in the production process of 10,000 general standard CPCI boards per year, move forward the product quality control link, improve the yield and production efficiency of the board products, greatly shorten the board supply cycle, and reduce the quality cost of the boards.

[0022] Specifically, in this embodiment, as Figure 5 shown, the power module 2 is electrically connected to the backplane to supply power to the CPU main board; the test interface board 13 is installed on the mounting base 11 by screws, and the test interface board 13 is provided with a power interface connector 131 and a test interface connector 132. The test interface connector is connected to the backplane 5 by means of soft wire soldering and is signal-connected to the CPU main board through the backplane.

[0023] Specifically, in this embodiment, the positions of the probes on the probe board 4 can be set according to the positions of the product test points. Meanwhile, by selecting different types of probe boards, this test device can be applicable to the test of various functional types of boards such as analog output, bus, A / D acquisition, pulse command, and programmable load, with strong versatility.

[0024] Specifically, the CPCI board test device in this embodiment is applicable to, but not limited to, 6U standard CPCI boards.

[0025] In a specific embodiment, as Figure 2 and Figure 3 shown, the mounting base 11 includes a bottom plate 111 and a first side plate and a second side plate oppositely arranged at both ends of the bottom plate; the mounting groove structure 16 includes a first sliding groove and a second sliding groove oppositely arranged on the end faces of the first side plate and the second side plate.

[0026] Specifically, when assembling the CPCI test device, the CPU main board is inserted into the mounting base 11 through the first sliding groove and the second sliding groove and is electrically connected to the backplane 5 through an electrical connector, thus realizing the assembly of the CPU main board, which is convenient for operation.

[0027] In a specific embodiment, as Figure 4 shown, the second mounting structure 15 includes a first mounting plate assembly and a second mounting plate assembly oppositely arranged on the end faces of the first side plate and the second side plate; the first mounting plate assembly includes a first mounting plate 151 and a plurality of first baffles 152, and the second mounting plate assembly includes a second mounting plate and a plurality of second baffles; a space for arranging the backplane is formed between the first mounting plate 151 and the plurality of first baffles 152 and between the second mounting plate and the plurality of second baffles; the probe board 4 is arranged on the first mounting plate 151 and the second mounting plate, and the backplane 5 is arranged in the space for arranging the backplane.

[0028] Specifically, in this embodiment, as Figure 3 and Figure 4As shown in the figure, two mounting grooves are provided on the end faces of the first side plate and the second side plate. The first mounting plate and the second mounting plate both include a fixing plate for inserting into the mounting groove and a long strip plate for placing the probe board 4. The first mounting plate and the second mounting plate are inserted into the mounting groove through the fixing plate and are fixedly connected to the mounting seat 11 by screws. The probe board 4 is arranged in the mounting seat through the first mounting plate and the second mounting plate and is fixed by screws. Moreover, the probe board and the CPU main board are connected by an electrical connector. In this embodiment, two first baffles and two second baffles are provided. The two first baffles are respectively arranged on both sides of the first mounting plate, and the two second baffles are respectively arranged on both sides of the second mounting plate. Rectangular notches are provided at one ends of the first mounting plate and the second mounting plate close to the first baffle and the second baffle, and spaces for arranging the backplane 5 are respectively formed between the rectangular notches and the first baffle and the second baffle. At the same time, the size of this space matches the size of the backplane, so that the backplane 5 can be arranged in this space and the position of the backplane can be restricted, thereby ensuring the stability of the installation.

[0029] In a specific embodiment, as Figure 4 shown, the first mounting structure 14 includes a support assembly oppositely arranged on the end faces of the first side plate and the second side plate and a positioning post 141 for restricting the position of the CPCI board; the support assembly includes a plurality of support blocks 142, the CPCI board is arranged on the support blocks 142 and abuts against the positioning post 141.

[0030] Specifically, as Figure 4 shown, a total of four support blocks are arranged in this embodiment. The first side plate and the second side plate are respectively provided with two support blocks. Each support block is an L-shaped structure formed by connecting a first long strip block and a second long strip block. Each support block is installed in the mounting groove through the first long strip block and is fixed by screws. The second long strip block is used to place the board to be tested, and at the same time, the position of the board to be tested is restricted by the positioning post 141 to achieve the positioning function.

[0031] In a specific embodiment, as Figure 6 shown, a plurality of polyimide pads 121 are provided on the end face of the box cover 12 close to the probe board 4.

[0032] Specifically, polyimide pads 121 are installed at the four end corners of the box cover 12 to prevent the board to be tested from being placed on the first mounting structure and being damaged by the box cover 12 when the box cover 12 presses the board to be tested and is in close contact with the probe.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A CPCI board test device, characterized in that, It includes a test chamber (1), as well as a test component and a power module (2) disposed inside the test chamber; The test chamber (1) includes a mounting base (11), a lid (12) and a test interface board (13) respectively disposed on two adjacent sides of the mounting base. The lid (12) is movably connected to the mounting base (11). The power module (2) is disposed on one side of the mounting base (11) close to the test interface board and is electrically connected to the test interface board (13); The test component includes a CPU main board (3), a probe board (4) and a backplane (5); Inside the mounting base (11), a first mounting structure (14) for mounting a CPCI board, a second mounting structure (15) for mounting the probe board and the backplane, and a mounting groove structure (16) for mounting the CPU main board are sequentially provided along the direction away from the lid (12); The backplane (5) is disposed inside the mounting base through the second mounting structure (15) and its end face is opposite to the power module (2); the probe board (4) is disposed inside the mounting base through the second mounting structure (15) and its end face is opposite to the lid (12); the CPU main board (3) is slidably mounted inside the mounting base (11) through the mounting groove structure (16) and is electrically connected to the probe board (4) and the backplane (5) respectively.

2. The CPCI board test device according to claim 1, wherein The mounting base (11) includes a bottom plate (111), a first side plate and a second side plate oppositely disposed at both ends of the bottom plate; The mounting groove structure (16) includes a first sliding groove and a second sliding groove oppositely disposed on the end faces of the first side plate and the second side plate; 3. The CPCI board test device according to claim 2, wherein The second mounting structure (15) includes a first mounting plate assembly and a second mounting plate assembly oppositely disposed on the end faces of the first side plate and the second side plate; The first mounting plate assembly includes a first mounting plate (151) and a plurality of first baffles (152). The second mounting plate assembly includes a second mounting plate and a plurality of second baffles. A space for disposing the backplane is formed between the first mounting plate (151) and the plurality of first baffles (152), and between the second mounting plate and the plurality of second baffles; The probe board (4) is disposed on the first mounting plate (151) and the second mounting plate, and the backplane (5) is disposed in the space for disposing the backplane; 4. The CPCI board test device according to claim 2, wherein The first mounting structure (14) includes a support assembly oppositely disposed on the end faces of the first side plate and the second side plate, and positioning posts (141) for restricting the position of the CPCI board; The support assembly includes a plurality of support blocks (142). The CPCI board is disposed on the support blocks (142) and abuts against the positioning posts (141); 5. The CPCI board test device according to claim 2, characterized in that, The end face of the lid (12) close to the probe board (4) is provided with a plurality of polyimide pads (121).

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