QSFP DD optical module test tool
By using the test structure of non-metallic limit blocks and metal tooling blocks that are softer than zinc alloy, the problems of scratching and temperature influence of optical modules are solved, and low damage rate and high-efficiency testing are achieved.
Patent Information
- Application Number
- CN202422548623.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In the existing optical module testing tooling, zinc alloy optical modules are easily scratched when scratched by stainless steel metal cages, resulting in high defect rate and affecting the test performance of stainless steel cages when temperature changes.
The test structure consisting of a non-metal limit block and a metal tooling block with a softer zinc alloy is avoided to scratch the light module, and ensure stability through screw connection and positioning structure. The tooling block is not fixed on the test board to avoid temperature conduction.
Reduces the probability of optical module scratching, maintains the test temperature stable, saves costs, and improves testing efficiency and flexibility.
Smart Images
Figure CN223297598U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical module testing, in particular to a QSFP DD optical module testing tool. Background Art
[0002] Common test fixtures include: a stainless steel cage, an adapter, and a test board. Multiple coaxial cables connected to the bit error tester are plugged into the test board. The adapter is electrically connected to the test board and is used to mate with the optical module to be tested. The stainless steel cage is fixed to the test board and covers the adapter. When inserting or removing the optical module into or from the stainless steel cage, the optical module will inevitably scrape against the stainless steel cage. Since the structural components of the optical module are generally made of zinc alloy, and stainless steel is harder than zinc alloy, the structural components of the optical module are scratched by the stainless steel cage, resulting in optical module failure. Utility Model Content
[0003] The technical problem to be solved by the present invention is to provide a QSFP DD optical module testing tool to overcome the deficiencies in the above-mentioned prior art.
[0004] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: A QSFP DD optical module test tool comprises: a test board, a limit block fixed at the edge of the test board, a tooling block fixedly connected to the limit block arranged on the side of the test board, the limit block is made of non-metal, and the tooling block is made of metal that is softer than zinc alloy, an assembly cavity is provided on the end face of the limit block close to the test board, the assembly cavity passes through the side of the limit block close to the tooling block, an adapter electrically connected to the test board and used for plugging and mating with the QSFP DD optical module to be tested is arranged in the assembly cavity, and a test cavity is provided on the side of the tooling block and is connected to the assembly cavity for inserting the QSFP DD optical module.
[0005] The beneficial effects of the utility model are:
[0006] When the tooling is used for QSFP DD optical module testing, the gold finger end of the QSFP DD optical module is inserted through the port of the test cavity, and the gold finger end of the QSFP DD optical module is plugged into the adapter to carry out the test work. In this solution, the structure formed by the limit block and the tooling block can replace the traditional stainless steel cage and meet the same test requirements. The limit block is made of non-metal, and the tooling block is made of metal. The tooling block is not fixed on the test board, so the temperature of the tooling block will not be directly transmitted to the test board, nor will it be transmitted to the test board through the limit block. Therefore, the temperature can be prevented from being transmitted to the test board at high or low temperatures to prevent the test temperature from being too high or too low and affecting the test performance. In addition, the limit block made of non-metallic material is not easy to scratch the QSFP The surface of the structural parts in the DD optical module can reduce the probability of optical module defects. Similarly, the material of the tooling block is a metal that is softer than zinc alloy, which is not easy to scratch the surface of the structural parts in the optical module, and can also reduce the probability of optical module defects. Compared with stainless steel cages, the limit block and tooling block are easier to process and are not easy to be damaged. Since the tooling block is not fixed on the test board, a small-sized test board can be used, which saves costs and can also meet different testing requirements.
[0007] On the basis of the above technical solution, the present invention can also be improved as follows.
[0008] Furthermore, the TEC sheet is fixed on the upper and / or lower end surface of the tooling block.
[0009] The above method has the further beneficial effect of facilitating high and low temperature tests. In addition, since the tooling block is not fixed on the test board, it is theoretically possible to fix the TEC sheet on the upper and lower end faces of the tooling block respectively, so as to effectively maintain the set temperature by heating / cooling, thereby improving test efficiency.
[0010] Furthermore, the material of the limit block is bakelite, Teflon or PEK, and the material of the tooling block is aluminum alloy or copper.
[0011] Furthermore, the limiting block and the tooling block are fixedly connected by a plurality of first screws.
[0012] A further beneficial effect of the above is that the screw connection makes assembly very convenient and has good stability.
[0013] Furthermore, a plurality of assembly holes are provided on the limit block, and a first threaded hole is coaxially provided on the tooling block corresponding to each assembly hole. The first screw passes through the assembly hole and is threadedly connected with the first threaded hole to fix the limit block and the tooling block.
[0014] Furthermore, a first positioning structure is provided between the limiting block and the tooling block.
[0015] A further beneficial effect of the above is that the first positioning structure can prevent the limit block and the tooling block from being misaligned, so that the limit block and the tooling block can be assembled quickly and accurately.
[0016] Furthermore, the first positioning structure includes: a plurality of first positioning columns fixed on the side of the limiting block and a plurality of first positioning holes opened on the side of the tooling block, and the plurality of first positioning columns are respectively plugged into the plurality of first positioning holes in a one-to-one correspondence.
[0017] Furthermore, the limiting block is fixedly connected to the test plate by a plurality of second screws.
[0018] A further beneficial effect of the above is that the screw connection makes assembly very convenient and has good stability.
[0019] Furthermore, a second positioning structure is provided between the limiting block and the test plate.
[0020] A further beneficial effect of the above is that the second positioning structure can prevent the limit block and the test board from being misaligned, so that the limit block and the test board can be assembled quickly and accurately.
[0021] Furthermore, the second positioning structure includes: a plurality of second positioning posts fixed on the end surface of the limiting block and a plurality of second positioning holes opened on the test board, and the plurality of second positioning posts are respectively plugged into the plurality of second positioning holes in a one-to-one correspondence. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a first-perspective structural diagram of the QSFP DD optical module test fixture in this utility model;
[0023] Figure 2 This is a second perspective structural diagram of the QSFP DD optical module test fixture in the present invention;
[0024] Figure 3 This is a first-person exploded view of the QSFP DD optical module test fixture in this utility model;
[0025] Figure 4 This is an exploded view from a second perspective of the QSFP DD optical module test fixture in the present invention;
[0026] Figure 5 This is the remaining structure diagram of the QSFP DD optical module test fixture in the present invention after removing the test board;
[0027] Figure 6 This is a structural diagram of the QSFP DD optical module plugged into the QSFP DD optical module test fixture.
[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0029] 1. Test plate, 110, second positioning hole, 2. Limit block, 210, assembly cavity, 220, assembly hole, 230, first positioning column, 240, second positioning column, 3. Tooling block, 310, test cavity, 320, first threaded hole, 330, first positioning hole, 4. Adapter, 5. First screw, 6. Second screw. DETAILED DESCRIPTION
[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0031] Example 1
[0032] like Figures 1 to 5 As shown, a QSFP DD optical module test fixture includes: a test board 1, a limit block 2 fixed at the edge of the test board 1, a fixture block 3 arranged on the side of the test board 1, the fixture block 3 is fixedly connected to the limit block 2, that is, the fixture block 3 does not contact the test board 1; the limit block 2 is made of non-metallic material, and the fixture block 3 is made of metal that is softer than zinc alloy. The limit block 2 has an assembly cavity 210 on the end face close to the test board 1, according to Figure 1 From the perspective shown, it is understood that: an assembly cavity 210 is provided on the lower end surface of the limit block 2, and the assembly cavity 210 passes through the side of the limit block 2 close to the tooling block 3. An adapter 4 is arranged in the assembly cavity 210, wherein the adapter 4 is electrically connected to the test board 1, and the adapter 4 is used to plug and mate with the QSFP DD optical module to be tested. A test cavity 310 is provided on the side of the tooling block 3 and is connected to the assembly cavity 210. The test cavity 310 is used for inserting the QSFP DD optical module. When the gold finger end of the QSFP DD optical module is inserted from the port of the test cavity 310, it can extend into the assembly cavity 210 and plug and mate with the adapter 4 in the assembly cavity 210.
[0033] like Figure 6As shown, when the tooling is used for QSFP DD optical module testing, the gold finger end of the QSFP DD optical module is inserted through the port of the test cavity 310, and the gold finger end of the QSFP DD optical module is plugged into the adapter 4 to carry out the testing work. In this solution, the structure formed by the limit block 2 and the tooling block 3 can replace the traditional stainless steel cage and meet the same testing requirements. The limit block 2 is made of non-metal, and the tooling block 3 is made of metal. The tooling block 3 is not fixed on the test board 1, so the temperature of the tooling block 3 will not be directly transmitted to the test board 1, nor will it be transmitted to the test board 1 through the limit block 2. Therefore, the temperature can be prevented from being transmitted to the test board 1 at high or low temperatures, so as to prevent the test temperature from being too high or too low and affecting the test performance. In addition, the limit block 2 made of non-metal material is not easy to scratch the QSFP The surface of the structural parts in the DD optical module can reduce the probability of causing optical module defects. Similarly, the material of the tooling block 3 is a metal that is softer than zinc alloy, and it is not easy to scratch the surface of the structural parts in the optical module, which can also reduce the probability of causing optical module defects. Compared with the stainless steel cage, the limit block 2 and the tooling block 3 are easier to process and are not easy to be damaged. Since the tooling block 3 is not fixed on the test board 1, a small-sized test board 1 can be used, which saves costs and can also meet different testing requirements.
[0034] Example 2
[0035] like Figures 1 to 5 As shown, this embodiment is a further improvement on the basis of embodiment 1, specifically as follows:
[0036] The TEC sheet is fixed on the upper and / or lower end surface of the tooling block 3, which can be specifically understood as: the TEC sheet is fixed on the upper end surface of the tooling block 3, or the TEC sheet is fixed on the lower end surface of the tooling block 3, or the TEC sheet is fixed on the upper and lower end surfaces of the tooling block 3 respectively. Preferably, the TEC sheet is fixed on the upper and lower end surfaces of the tooling block 3 respectively to facilitate high and low temperature tests.
[0037] Example 3
[0038] like Figures 1 to 5 As shown, this embodiment is a further improvement on the basis of embodiment 1 or 2, specifically as follows:
[0039] The material of the limiting block 2 is bakelite, Teflon or PEK (polyether ketone), and the material of the tooling block 3 is aluminum alloy or copper, so as not to scratch the structural parts of the optical module.
[0040] Example 4
[0041] like Figure 3 、 Figure 4 、 Figure 5As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 3, and the details are as follows:
[0042] The limit block 2 and the tooling block 3 are fixedly connected by multiple first screws 5. The screw connection makes assembly very convenient and has good stability. The number of first screws 5 can be one, two, three, four, etc., which is determined according to actual conditions. The number of first screws 5 disclosed in the accompanying drawings shown in this scheme is four.
[0043] Furthermore: a plurality of assembly holes 220 are provided on the limit block 2, and a first threaded hole 320 is coaxially provided on the tooling block 3 corresponding to each assembly hole 220, and the first screw 5 is threadedly connected with the first threaded hole 320 after passing through the assembly hole 220 to fix the limit block 2 and the tooling block 3.
[0044] Example 5
[0045] like Figure 3 、 Figure 4 As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 4, specifically as follows:
[0046] A first positioning structure is provided between the limit block 2 and the tooling block 3 , which can prevent the limit block 2 and the tooling block 3 from being misaligned, so that the limit block 2 and the tooling block 3 can be assembled quickly and accurately.
[0047] Furthermore, the first positioning structure includes: a plurality of first positioning columns 230 fixed on the side of the limit block 2 and a plurality of first positioning holes 330 opened on the side of the tooling block 3. The plurality of first positioning columns 230 are respectively plugged into the plurality of first positioning holes 330 in a one-to-one correspondence. The number of first positioning columns 230 can be one, two, three, four, etc. Similarly, the number of first positioning holes 330 can be one, two, three, four, etc., and the number of first positioning columns 230 disclosed in the drawings shown in this scheme is three, and the number of first positioning holes 330 is three.
[0048] Example 6
[0049] like Figure 2 、 Figure 5 As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 5, specifically as follows:
[0050] The limit block 2 is fixedly connected to the test plate 1 by multiple second screws 6. The screw connection makes assembly very convenient and has good stability. The number of second screws 6 can be one, two, three, four, etc., which is determined according to actual conditions. The number of second screws 6 disclosed in the accompanying drawings shown in this scheme is two.
[0051] Example 7
[0052] like Figure 2 、 Figure 5 As shown, this embodiment is a further improvement on the basis of any one of the embodiments 1 to 6, specifically as follows:
[0053] A second positioning structure is provided between the limit block 2 and the test board 1 , which can prevent the limit block 2 and the test board 1 from being misaligned, so that the limit block 2 and the test board 1 can be assembled quickly and accurately.
[0054] Furthermore, the second positioning structure includes: a plurality of second positioning columns 240 fixed on the end face of the limit block 2 and a plurality of second positioning holes 110 opened on the test board 1. The plurality of second positioning columns 240 are respectively plugged into the plurality of second positioning holes 110 in a one-to-one correspondence. The number of second positioning columns 240 can be one, two, three, four, etc. Similarly, the number of second positioning holes 110 can be one, two, three, four, etc., and the number of second positioning columns 240 disclosed in the drawings shown in this scheme is four, and the number of second positioning holes 110 is four.
[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A QSFP DD optical module test tool, characterized in that: include: A test board (1) is provided, wherein a limit block (2) is fixed at an edge of the test board (1), a tooling block (3) fixedly connected to the limit block (2) is arranged on a side surface of the test board (1), the limit block (2) is made of non-metal, and the tooling block (3) is made of metal that is softer than zinc alloy, an assembly cavity (210) is provided on an end surface of the limit block (2) close to the test board (1), the assembly cavity (210) passes through the side surface of the limit block (2) close to the tooling block (3), an adapter (4) electrically connected to the test board (1) and used for plugging and matching with a QSFP DD optical module to be tested is arranged in the assembly cavity (210), and a test cavity (310) is provided on the side surface of the tooling block (3) and is communicated with the assembly cavity (210) and used for inserting the QSFP DD optical module.
2. A QSFP DD optical module test fixture according to claim 1, characterized in that: The TEC sheet is fixed on the upper and / or lower end surface of the tooling block (3).
3. A QSFP DD optical module test tool according to claim 1, characterized in that: The material of the limit block (2) is bakelite, Teflon or PEK, and the material of the tooling block (3) is aluminum alloy or copper.
4. A QSFP DD optical module test tool according to claim 1, characterized in that: The limiting block (2) and the tooling block (3) are fixedly connected via a plurality of first screws (5).
5. A QSFP DD optical module test tool according to claim 4, characterized in that: The limit block (2) is provided with a plurality of assembly holes (220), and the tooling block (3) is provided with a first threaded hole (320) coaxially corresponding to each assembly hole (220). The first screw (5) passes through the assembly hole (220) and is threadedly connected to the first threaded hole (320) to fix the limit block (2) and the tooling block (3).
6. A QSFP DD optical module test tool according to claim 1, characterized in that: A first positioning structure is provided between the limit block (2) and the tooling block (3).
7. A QSFP DD optical module test fixture according to claim 6, characterized in that: The first positioning structure comprises: a plurality of first positioning columns (230) fixed on the side of the limiting block (2) and a plurality of first positioning holes (330) opened on the side of the tooling block (3); the plurality of first positioning columns (230) are respectively plugged into the plurality of first positioning holes (330) in a one-to-one correspondence.
8. The QSFP DD optical module test tool according to claim 1, characterized in that: The limiting block (2) and the test plate (1) are fixedly connected via a plurality of second screws (6).
9. A QSFP DD optical module test tool according to claim 1, characterized in that: A second positioning structure is provided between the limiting block (2) and the test plate (1).
10. The QSFP DD optical module test tool according to claim 9, characterized in that: The second positioning structure comprises: a plurality of second positioning columns (240) fixed on the end surface of the limiting block (2) and a plurality of second positioning holes (110) opened on the test board (1); the plurality of second positioning columns (240) are respectively plugged into the plurality of second positioning holes (110) in a one-to-one correspondence.