Airtight optical module PIND test tool

Abstract

This invention proposes a test fixture for an airtight optical module (PIND), comprising a base, a first clamping member, a bracket, a second clamping member, and a driving component. The base includes an optical module body positioning part and a pigtail positioning part. The first clamping member is used to fix the pigtail of the airtight optical module. The second clamping member is vertically slidably mounted on the bracket and is used to cooperate with the optical module body positioning part to fix the optical module body of the airtight optical module. The driving component is used to drive the second clamping member to slide and move vertically up and down. This airtight optical module (PIND) test fixture, in which the first clamping member cooperates with the pigtail positioning part of the base to fix the pigtail of the airtight optical module, and the second clamping member cooperates with the optical module body positioning part of the base to fix the optical module body of the airtight optical module, ensures that the entire airtight optical module with pigtail is reliably fixed, avoiding the impact on test results caused by unreliable fixing of the optical module body and pigtail during the test.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, and in particular to a fixture for fixing an airtight optical module during PIND testing. Background Technology

[0002] The PIND (Particle Impact Noise Detection Test) is a reliability testing method used to detect the presence of free particles inside electronic components (such as integrated circuits, relays, and sealed devices). These particles may originate from residues left over from the manufacturing process (such as solder slag, metal debris, and encapsulation material debris), and may cause short circuits, poor contacts, or mechanical damage during device operation, thereby affecting device performance and long-term reliability.

[0003] For the PIND test of hermetic optical modules, the relevant technology usually involves attaching the hermetic optical module to the vibration table of the PIND testing equipment using special double-sided adhesive. However, for hermetic optical modules with pigtails, since the pigtails have optical fibers (optical connectors), they cannot be directly fixed to the vibration table surface. In addition, considering the large size and weight of the products, there is a risk of the modules falling off when attached to the vibration table surface for testing.

[0004] Therefore, there is an urgent need to design a PIND test fixture that can reliably fix the airtight optical module with pigtail during PIND testing without the need for adhesive. Summary of the Invention

[0005] This utility model proposes a PIND test fixture for airtight optical modules, which can solve the problems in related technologies where the pigtail cannot be fixed during PIND testing of airtight optical modules with pigtails, and the adhesive fixation is prone to falling off and has poor reliability.

[0006] To achieve the above technical objectives, the technical solution of this utility model is a hermetically sealed optical module PIND testing fixture, comprising:

[0007] The base includes an optical module body positioning part and a pigtail positioning part;

[0008] The first clamping member is detachably connected to the pigtail positioning part and is used to fix the pigtail of the airtight optical module.

[0009] A bracket, which is fixedly connected to the base and extends upward toward the base;

[0010] The second clamping member is slidably disposed on the bracket along the vertical direction and is located above the optical module body positioning part, and is used to cooperate with the optical module body positioning part to fix the optical module body of the airtight optical module.

[0011] A driving component, which is mounted on the bracket, is used to drive the second clamping member to slide and move vertically.

[0012] In some embodiments, the hermetic optical module PIND test fixture further includes:

[0013] An optical connector protective component is disposed between the first clamping member and the pigtail positioning part, for isolating the first clamping member from direct contact with the optical connector of the pigtail, and isolating the pigtail positioning part from direct contact with the optical connector of the pigtail.

[0014] In some embodiments, a pigtail receiving groove for accommodating the pigtail is formed on the top surface of the pigtail positioning part and / or the bottom surface of the first clamping member, and the optical connector protective member is placed in the pigtail receiving groove.

[0015] In some embodiments, the first clamping member and the tail fiber positioning part are provided with mutually cooperating positioning structures for positioning the first clamping member.

[0016] In some embodiments, the hermetic optical module PIND test fixture further includes:

[0017] The optical module body protective component is located below the second clamping component and is used to isolate the second clamping component from direct contact with the optical module body.

[0018] In some embodiments, the bottom surface of the optical module body protective component includes a horizontal pressing surface and a positioning protrusion that is arranged around the periphery of the horizontal pressing surface and protrudes downward.

[0019] In some embodiments, a dotted adhesive groove is formed at the center of the bottom surface of the second clamping member, and the optical module body protective member is bonded to the second clamping member.

[0020] In some embodiments, the bracket includes a horizontal mounting portion, the horizontal mounting portion having a vertical groove formed thereon;

[0021] The second clamping member includes a vertical sliding engagement part and a horizontal fixed clamping part. The sliding engagement part is slidably engaged with the vertical slide groove, and the sliding engagement part and the vertical slide groove are provided with mutually cooperating sliding guide structures.

[0022] In some embodiments, a drive component mounting piece is fixedly disposed on the horizontal mounting part above the vertical slide groove. The drive component mounting piece has a threaded hole, and the drive component is a knob that is threadedly installed in the threaded hole. The bottom end of the knob is connected to the sliding mating part, and rotating the knob realizes the vertical sliding and lifting of the second clamping member.

[0023] In some embodiments, a neck is formed at the bottom of the knob, and an inverted T-shaped horizontal through groove is formed at the top of the sliding mating part, and the neck is slidably fitted into the inverted T-shaped horizontal through groove.

[0024] Compared with the prior art, the present invention has the following advantages and positive effects:

[0025] 1. The present invention provides a test fixture for airtight optical modules. The first clamping part cooperates with the pigtail positioning part of the base to fix the pigtail of the airtight optical module, and the second clamping part cooperates with the optical module body positioning part of the base to fix the optical module body of the airtight optical module. This ensures that the entire airtight optical module with pigtail can be reliably fixed, and avoids the optical module body and pigtail from shaking due to unreliable fixing during the test, which would affect the test results.

[0026] 2. No need to use double-sided tape to fix the airtight optical module, which makes it easy to put the airtight optical module away before and after the PIND test, and also avoids the appearance defects of the optical module caused by double-sided tape. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the airtight optical module PIND test fixture in the embodiment of this utility model;

[0028] Figure 2 for Figure 1 A-direction front view;

[0029] Figure 3 This is a three-dimensional structural diagram of the airtight optical module fixed on the airtight optical module PIND test fixture in an embodiment of the present invention.

[0030] Figure 4 This is an exploded structural diagram of the airtight optical module in the fixed state on the airtight optical module PIND test fixture in an embodiment of this utility model.

[0031] Figure 5 This is a three-dimensional structural diagram of the optical connector protective component of the airtight optical module PIND test fixture in an embodiment of this utility model.

[0032] Figure 6 This is a three-dimensional structural diagram of the protective component of the optical module body of the airtight optical module PIND test fixture in an embodiment of this utility model;

[0033] Figure 7 This is a schematic diagram of the arrangement structure of the second clamping member and the driving component on the bracket in an embodiment of this utility model.

[0034] Figure label:

[0035] 1. Test fixture for airtight optical module PIND;

[0036] 10. Base; 11. Optical module body positioning part; 12. Pigtail positioning part; 13. Positioning post;

[0037] 20. First clamping element; 21. Positioning hole;

[0038] 30. Bracket; 31. Vertical connection part; 32. Horizontal mounting part; 33. Vertical slide groove; 34. Vertical slide rail;

[0039] 40. Second clamping component; 41. Glue dispensing groove; 42. Sliding fit part; 43. Fixed clamping part; 44. Inverted T-shaped horizontal through groove; 45. Vertical slide rail;

[0040] 50. Knob; 51. Neck; 52. Threaded rod;

[0041] 60. Screws;

[0042] 70. Protective components for optical connectors;

[0043] 80. Fiber optic pigtail receiving slot;

[0044] 90. Protective components for the optical module body; 91. Horizontal clamping surface; 92. Positioning protrusion;

[0045] 100. Drive component mounting part; 110. Threaded hole;

[0046] 2. Hermetic optical module; 2.1. Optical module body; 2.2. Pigtail; 2.21. Fiber body; 2.22. Optical connector. Detailed Implementation

[0047] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] Reference Figures 1 to 4 In some embodiments of this application, a PIND test fixture 1 for an airtight optical module is provided to reliably fix the airtight optical module 2 during PIND testing, thereby ensuring the accuracy of the test results.

[0049] The hermetic optical module 2 can be a butterfly-shaped hermetic optical module or other types of hermetic optical modules, including an optical module body 2.1 and a pigtail 2.2. One end of the optical module body 2.1 is a first end face for connecting an electrical interface, and the other end is a second end face for connecting an optical interface. The optical module body 2.1 includes a hermetic metal shell. The pigtail 2.2 includes a fiber body 2.21 and an optical connector 2.22. One end of the fiber body 2.21 is connected to the second end face of the optical module body 2.1 for transmitting optical signals, and the other end of the fiber body 2.21 is connected to the optical connector 2.22.

[0050] like Figures 1 to 4As shown, the airtight optical module PIND test fixture 1 includes a base 10, a first clamping component 20, a bracket 30, a second clamping component 40, and a drive component.

[0051] The base 10 serves as the fixing foundation for the entire hermetic optical module PIND test fixture 1. It can be fixed to the vibration table surface of the PIND test equipment by adhesive, thereby securing the entire test fixture to the vibration table surface. Specifically, the base 10 includes an integrated optical module body positioning part 11 and a fiber optic pigtail positioning part 12, which are arranged along the length of the hermetic optical module 2. The bottom surface of the base 10 is horizontal to ensure stable contact with the vibration table surface.

[0052] The first clamping member 20 is detachably connected to the pigtail positioning part 12 and is used to fix the pigtail 2.2 of the airtight optical module 2, specifically fixing the optical connector 2.22 of the pigtail 2.2. When the first clamping member 20 and the pigtail positioning part 12 are connected together, they together clamp and fix the optical connector 2.22. When the first clamping member 20 is removed from the pigtail positioning part 12, the optical connector 2.22 is released.

[0053] The bracket 30 is fixedly connected to the base 10 and extends upwards from the base 10. Specifically, the bracket 30 and the base 10 can be fixedly connected by a plurality of screws 60 at the bottom of the base 10.

[0054] The second clamping member 40 is slidably disposed on the bracket 30 along the vertical direction and is located above the optical module body positioning part 11. It is used to cooperate with the optical module body positioning part 11 to fix the optical module body 2.1 of the airtight optical module 2.

[0055] The drive component is mounted on the bracket 30 and is used to drive the second clamping member 40 to slide and move vertically.

[0056] Specifically, when the driving component drives the second clamping member 40 to slide down, it gradually approaches the optical module body positioning part 11 to press down the airtight metal shell of the optical module 2.1, and then cooperates with the optical module body positioning part 11 to clamp the optical module body 2.1. When the driving component drives the second clamping member 40 to slide up, it gradually moves away from the optical module body positioning part 11, and then releases the optical module body 2.1.

[0057] In some embodiments of this application, the airtight optical module PIND test fixture 1 has a first clamping member 20 that cooperates with the pigtail positioning part 12 of the base 10 to fix the pigtail 2.2 of the airtight optical module 2 (specifically, the optical connector 2.22 that fixes the pigtail 2.2). The second clamping member 40 cooperates with the optical module body positioning part 11 of the base 10 to fix the optical module body 2.1 of the airtight optical module 2. This ensures that the entire airtight optical module 2 with the pigtail 2.2 is reliably fixed, preventing the optical module body 2.1 and the pigtail 2.2 from shaking due to unreliable fixing during the test, which would affect the test results. At the same time, by using the airtight optical module PIND test fixture 1 in some embodiments of this application, there is no need to use double-sided adhesive to fix the airtight optical module 2, which facilitates the removal and placement of the airtight optical module 2 before and after the PIND test, and also avoids the appearance defects of the optical module caused by double-sided adhesive.

[0058] To ensure the structural strength of the tooling and provide reliable fixing, the base 10 and the first clamping member 20 are typically made of metal. To prevent direct contact between the metal members and the optical connector 2.22, which could damage the connector, in some embodiments, such as... Figure 2 , Figure 4 As shown, and in conjunction with reference Figure 5 The airtight optical module PIND test fixture 1 also includes an optical connector protective component 70. The optical connector protective component 70 is disposed between the first clamping component 20 and the pigtail positioning part 12, and is used to isolate the first clamping component 20 and the optical connector 2.22 of the pigtail 2.2 to prevent them from directly contacting each other, and to isolate the pigtail positioning part 12 and the optical connector 2.22 of the pigtail 2.2 to prevent them from directly contacting each other.

[0059] The optical connector protective component 70 is made of an elastic material, such as rubber or silicone. In some embodiments of this application, the optical connector protective component 70 may be sheet-shaped, with one component each between the optical connector 2.22 and the first clamping member 20 and between the optical connector 2.22 and the pigtail positioning part 12. When the first clamping member 20 and the pigtail positioning part 12 are clamped together, the optical connector 2.22 can be protected to prevent the optical connector 2.22 from being damaged by pressure.

[0060] In some embodiments of this application, such as Figure 5 As shown, the optical connector protective component 70 is a sleeve-shaped part with one open end, forming a protective sleeve. The optical connector 2.22 is directly inserted into the optical connector protective component 70, which provides all-round protection for the optical connector 2.22 and is easy to use, making it convenient to protect the small optical connector 2.22.

[0061] In some embodiments, such as Figure 2 and Figure 4As shown, both the top surface of the fiber optic positioning part 12 and the bottom surface of the first clamping member 20 have fiber optic receiving grooves 80 for accommodating the fiber optic 2.2. The optical connector protective member 70 is placed in the fiber optic receiving groove 80, and is pressed together by the first clamping member 20 and the fiber optic positioning part 12. Of course, the fiber optic receiving groove 80 can also be set separately on the top surface of the fiber optic positioning part 12 or on the bottom surface of the first clamping member 20; no specific limitation is made here. By setting the fiber optic receiving groove 80, the gap between the connecting surfaces of the first clamping member 20 and the fiber optic positioning part 12 can be reduced, making the connection between the first clamping member 20 and the fiber optic positioning part 12 more stable and reliable, and also helping to reduce the size of the tooling.

[0062] In some embodiments, the first clamping member 20 and the pigtail positioning part 12 are provided with mutually cooperating positioning structures for positioning the first clamping member 20 when the two are connected.

[0063] Specifically, such as Figure 1 , Figure 4 As shown, the positioning structure includes a plurality of positioning posts 13 formed on the pigtail positioning part 12 and a plurality of positioning holes 21 correspondingly formed on the first clamping member 20. The positioning posts 13 cooperate with the positioning holes 21 to achieve positioning. After positioning, the first clamping member 20 and the pigtail positioning part 12 can be fastened together by a plurality of screws 60 on the top of the first clamping member 20.

[0064] In some embodiments, multiple positioning posts 13 are arranged on opposite sides of the fiber optic accommodating groove 80 on the fiber optic positioning part 12, and multiple positioning holes 21 are arranged on opposite sides of the fiber optic accommodating groove 80 of the first clamping member 20.

[0065] The second clamping member 40 is usually also a metal part. In order to avoid the second clamping member 40 damaging the optical module body 2.1 as much as possible, in some embodiments, the airtight optical module PIND test fixture 1 also includes an optical module body protective member 90, which is located below the second clamping member 40 to isolate the second clamping member 40 from the optical module body 2.1 and prevent the second clamping member 40 from directly contacting the optical module body 2.1.

[0066] The protective component 90 of the optical module body can be made of non-metallic materials such as plastic plates or rubber plates, and no specific restrictions are imposed here.

[0067] Furthermore, referring to Figure 6 At the same time, combined Figure 1 and Figure 4The bottom surface of the optical module body protective component 90 includes a horizontal pressing surface 91 and a positioning protrusion 92 that surrounds the horizontal pressing surface 91 and protrudes downward. The positioning protrusion 92 and the horizontal pressing surface 91 form a positioning space that fits the top of the optical module body 2.1. The top of the optical module body 2.1, placed on the optical module body positioning part 11, is embedded in this positioning space, and the top surface of the optical module body 2.1 is in contact with the horizontal pressing surface 91. The second pressing member 40 moves downward and is fixed to the optical module body 2.1 by the optical module body protective component 90. The positioning space provides a certain circumferential limiting effect on the optical module body 2.1, which helps to prevent the optical module body 2.1 from sliding horizontally when the second pressing member 40 presses down.

[0068] In some embodiments, the optical module body protective component 90 can be fixed on the bottom surface of the second clamping component 40, and the contact surface between the two is a horizontal plane. The sliding and lifting of the second clamping component 40 directly drives the optical module body protective component 90 to rise and fall.

[0069] The optical module body protective component 90 can be fixed to the bottom surface of the second clamping component 40 by adhesive bonding or screw fixing 60. (Refer to...) Figure 7 In some embodiments, a dotting groove 41 is formed at the center of the bottom surface of the second clamping member 40. By dotting glue into the dotting groove 41, the optical module body protective member 90 is bonded and fixed to the second clamping member 40.

[0070] By setting up a dispensing groove 41, dispensing adhesive into the dispensing groove 41 can increase the amount of adhesive dispensed and make it easier to level the adhesive in the groove, thereby improving the bonding reliability between the optical module body protective component 90 and the second clamping component 40.

[0071] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, and in conjunction with reference Figure 7 The bracket 30 is L-shaped and includes a vertical connecting part 31 and a horizontal mounting part 32. The bottom end of the vertical connecting part 31 is fixedly connected to the base 10, the top end of the vertical connecting part 31 is connected to one end of the horizontal mounting part 32, and the other end of the horizontal mounting part 32 is suspended. A vertical groove 33 is formed on the horizontal mounting part 32.

[0072] The second clamping member 40 is inverted T-shaped, including a vertical sliding engagement part 42 and a horizontal fixed clamping part 43. The sliding engagement part 42 is slidably engaged with the vertical slide groove 33. The sliding engagement part 42 and the vertical slide groove 33 are provided with mutually cooperating sliding guide structures, so that the vertical sliding and lifting of the second clamping member 40 is stable and reliable, and avoids shaking that affects the clamping and fixing effect.

[0073] Specifically, the sliding guide structure includes vertical slide rails 45 formed on a set of opposing vertical sides of the sliding mating part 42 and vertical slide tracks 34 formed on a set of opposing inner walls of the vertical slide groove 33. Of course, the sliding guide structure can also be other structures, which will not be elaborated here.

[0074] The driving component can be an electric drive component that can drive the second clamping member 40 to slide vertically up and down, or a hydraulic or pneumatic drive, etc., without specific restrictions.

[0075] In some embodiments, such as Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, a drive component mounting part 100 is fixedly installed on the horizontal mounting part 32 above the vertical slide groove 33. The drive component mounting part 100 has a threaded hole 110. The drive component is a knob 50, which has a threaded rod part 52. The threaded rod part 52 is threadedly engaged with the threaded hole 110. The bottom end of the knob 50 is connected to the sliding engagement part 42 of the second clamping member 40. Rotating the knob 50 realizes the vertical sliding and lifting of the second clamping member 40 under the guidance of the sliding guide structure.

[0076] In some embodiments, a neck 51 is formed at the bottom of the knob 50, and an inverted T-shaped horizontal through groove 44 is formed at the top of the sliding engagement part 42. The cross-section of the inverted T-shaped horizontal through groove 44 is inverted T-shaped and extends horizontally through the sliding engagement part 42. The neck 51 is slidably fitted into the inverted T-shaped horizontal through groove 44.

[0077] When assembling the knob 50 with the sliding engagement part 42 of the second clamping member 40, simply insert the bottom end of the knob 50 into the inverted T-shaped horizontal through groove 44 from one through end of the inverted T-shaped horizontal through groove 44. The neck 51 of the knob 50 is locked at the top of the inverted T-shaped horizontal through groove 44 to connect the knob 50 and the second clamping member 40 into one unit, making it easy to assemble and disassemble the second clamping member 40 and the knob 50, which is beneficial to improving the production efficiency of the entire tooling.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A hermetic optical module PIND test tool, characterized by, include: The base includes an optical module body positioning part and a pigtail positioning part; The first clamping member is detachably connected to the pigtail positioning part and is used to fix the pigtail of the airtight optical module. A bracket, which is fixedly connected to the base and extends upward toward the base; The second clamping member is slidably disposed on the bracket along the vertical direction and is located above the optical module body positioning part, and is used to cooperate with the optical module body positioning part to fix the optical module body of the airtight optical module. A driving component, which is mounted on the bracket, is used to drive the second clamping member to slide and move vertically.

2. The hermetic optical module PIND test fixture of claim 1, wherein, Also includes: An optical connector protective component is disposed between the first clamping member and the pigtail positioning part, for isolating the first clamping member from direct contact with the optical connector of the pigtail, and isolating the pigtail positioning part from direct contact with the optical connector of the pigtail.

3. The hermetic optical module PIND test fixture according to claim 2, characterized in that, The top surface of the pigtail positioning part and / or the bottom surface of the first clamping member are formed with a pigtail receiving groove for accommodating the pigtail, and the optical connector protective member is placed in the pigtail receiving groove.

4. The hermetic optical module PIND test fixture according to claim 1, characterized in that, The first clamping member and the tail fiber positioning part are provided with mutually cooperating positioning structures for positioning the first clamping member.

5. The hermetic optical module PIND test fixture of claim 1, wherein, Also includes: The optical module body protective component is located below the second clamping component and is used to isolate the second clamping component from direct contact with the optical module body.

6. The hermetic optical module PIND test fixture according to claim 5, characterized in that, The bottom surface of the optical module body protective component includes a horizontal pressing surface and a positioning protrusion that is arranged around the periphery of the horizontal pressing surface and protrudes downward.

7. The hermetic optical module PIND test fixture according to claim 5, characterized in that, A dotted adhesive groove is formed at the center of the bottom surface of the second clamping member, and the optical module body protective member is bonded to the second clamping member.

8. The hermetic optical module PIND test fixture according to claim 1, characterized in that, The bracket includes a horizontal mounting portion, and the horizontal mounting portion is formed with a vertical sliding groove; The second clamping member includes a vertical sliding engagement part and a horizontal fixed clamping part. The sliding engagement part is slidably engaged with the vertical slide groove, and the sliding engagement part and the vertical slide groove are provided with mutually cooperating sliding guide structures.

9. The hermetic optical module PIND test fixture according to claim 8, characterized in that, A drive component mounting piece is fixedly installed on the horizontal mounting part above the vertical sliding groove. The drive component mounting piece has a threaded hole. The drive component is a knob that is threadedly installed in the threaded hole. The bottom end of the knob is connected to the sliding mating part. Rotating the knob realizes the vertical sliding and lifting of the second clamping member.

10. The hermetic optical module PIND test fixture according to claim 9, characterized in that, A necked portion is formed at the bottom end of the knob, and a top end of the sliding fitting portion is formed with a reverse T-shaped horizontal through slot, and the necked portion is slidably fitted in the reverse T-shaped horizontal through slot.

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