Plugging-resistant 8-core multimode stainless steel test insertion core

Abstract

The utility model discloses a plugging-resistant eight-core multi-mode stainless steel test insertion core, relates to the technical field of optical communication test connectors, and particularly relates to an improvement of the plugging-resistant eight-core stainless steel test insertion core suitable for multi-mode optical fiber connection. In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the insertion core comprises an insertion core body, the insertion core body is of a flat rectangular structure, and the insertion core body is a stainless steel insertion core; a plurality of optical fiber through holes which are arranged in parallel are arranged in the insertion core body, and the aperture of the optical fiber through holes is matched with a multimode optical fiber. And the coupling alignment precision during optical signal transmission is ensured. The overall structure is compact, and the connector has the characteristics of high strength and wear resistance, and adapts to frequent plugging scenes. And two circular positioning holes are formed in the insertion surface of the insertion core body. And the circular positioning hole is used for being matched with a positioning column in the test interface module, so that the insertion core is ensured to have good repeated positioning performance when being inserted. The problems that an existing plastic insertion core is short in service life, low in strength and not suitable for a high-frequency testing environment are solved, the overall structure is stable, and the compressive strength and the torsional strength are superior to those of a traditional plastic insertion core.

Description

Technical Field

[0001] This utility model relates to the field of optical communication test connector technology, specifically an improved 8-core stainless steel test ferrule suitable for multimode fiber optic connections. Background Technology

[0002] In the testing and development of optical communication devices, test ferrules, as crucial components connecting optical fibers or modules, are widely used in experimental platforms, test fixtures, and reliability verification equipment. Traditional test ferrules are mostly made of plastic, offering advantages such as low processing costs and ease of molding. However, in real-world testing environments involving frequent insertions and removals and repeated connections, plastic ferrules generally suffer from poor wear resistance, insufficient mechanical strength, and a limited number of insertion / removal cycles. This can easily lead to structural deformation or interface wear, consequently affecting test accuracy and connection stability.

[0003] Especially in high-frequency testing scenarios, ferrules need to withstand thousands or even tens of thousands of insertion and removal operations. Plastic structures struggle to withstand prolonged mechanical wear, leading to increasingly prominent issues of short lifespan and poor reliability. Therefore, there is an urgent need for a ferrule design with higher structural strength and durability to meet the demands of high-reliability testing. Furthermore, if the test ferrule itself is defective, it can cause instability during the testing process, resulting in serious consequences that are difficult to detect. Utility Model Content

[0004] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a durable 8-pin multimode stainless steel test insert. It solves the problems of short lifespan, low strength, and unsuitability for high-frequency testing environments of existing plastic inserts. Its overall structure is stable, and its compressive and torsional strength is superior to that of traditional plastic inserts.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: it includes a ferrule body 1, which has a flat rectangular structure and is made of stainless steel; the ferrule body 1 has multiple parallel-arranged fiber optic through-holes 11 inside, the aperture of which is adapted to multimode fiber. This ensures the coupling alignment accuracy during optical signal transmission. The overall structure is compact, possesses high strength and wear resistance, and is suitable for frequent insertion and removal scenarios.

[0006] The insertion surface 2 of the ferrule body 1 is provided with two circular positioning holes 21. The circular positioning holes 21 are used to cooperate with the positioning posts in the test interface module to ensure that the ferrule has good repeatability when inserted.

[0007] The ferrule body 1 has a stepped slot 13 on its side, and the transition of the stepped slot 13 is provided with an arc transition. The stepped slot 13 is used to engage with the clamping component in the external test connector to improve the vibration resistance and fixation effect during insertion and removal.

[0008] The ferrule body 1 has a ferrule interface 22 on its insertion surface 2. The insertion surface 2 is a high-precision plane, which is a rear end face that has been ground or polished. The high-precision plane can ensure the optical performance of the insertion and is suitable for testing high-precision optical signals.

[0009] The working principle of this utility model is as follows: the ferrule body 1 is made of stainless steel by one-time stamping or precision CNC machining; the fiber optic through hole is made by laser drilling or micro-mechanical drilling process, and the through hole size is precisely matched with the 8-core multimode fiber; the circular positioning hole 21 can be made by precision die stamping or laser processing; the stainless steel ferrule of this invention is assembled in the socket of the standard test platform and can be repeatedly inserted and removed more than 10,000 times while maintaining high connection accuracy and stability.

[0010] The beneficial effects of this utility model after adopting the above technical solution are as follows: High insertion and removal resistance: The use of stainless steel material significantly improves the service life of the ferrule in high-frequency testing; High structural strength: The overall structure is stable, and its compressive and torsional strength is superior to that of traditional plastic ferrules; High optical coupling accuracy: The 8-pin through-holes are evenly arranged with high precision, ensuring low optical signal loss; Strong compatibility: Non-standard size design can be customized according to the platform to meet diverse testing needs; Precise repeatability: It is equipped with dedicated positioning holes and slots to maintain reliable positioning during insertion and removal. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Another perspective view.

[0014] Explanation of reference numerals in the attached drawings: ferrule body 1, fiber optic through hole 11, insertion surface 2, circular positioning hole 21, stepped slot 13, insertion interface 22. Detailed Implementation

[0015] See Figure 1-2As shown, the technical solution adopted in this specific embodiment is as follows: It includes a ferrule body 1, which has a flat rectangular structure and is made of stainless steel. The ferrule body 1 has eight parallel fiber optic through-holes 11 inside, the aperture of which is adapted to the multimode fiber. This ensures the coupling alignment accuracy during optical signal transmission. The overall structure is compact, possessing high strength and wear resistance, making it suitable for frequent insertion and removal scenarios.

[0016] The insertion surface 2 of the ferrule body 1 is provided with two circular positioning holes 21. The circular positioning holes 21 are used to cooperate with the positioning posts in the test interface module to ensure that the ferrule has good repeatability when inserted.

[0017] The ferrule body 1 has a stepped slot 13 on its side. The stepped slot 13 is used to engage with the clamping component in the external test connector to improve vibration resistance and fixation during insertion and removal.

[0018] The ferrule body 1 has a ferrule interface 22 on its insertion surface 2. The insertion surface 2 is a high-precision plane, which is a rear end face that has been ground or polished. The high-precision plane can ensure the optical performance of the insertion and is suitable for testing high-precision optical signals.

[0019] Additionally, the ferrule body 1 needs to undergo anti-corrosion treatments such as passivation, nickel plating, and electrophoretic coating to adapt to long-term use in humid, corrosive, or dusty environments, while also improving the wear resistance of the ferrule itself.

[0020] The working principle of this utility model is as follows: the ferrule body 1 is made of stainless steel by one-time stamping or precision CNC machining; the fiber optic through hole is made by laser drilling or micro-mechanical drilling process, and the through hole size is precisely matched with the 8-core multimode fiber; the circular positioning hole 21 can be made by precision die stamping or laser processing; the stainless steel ferrule of this invention is assembled in the socket of the standard test platform and can be repeatedly inserted and removed more than 10,000 times while maintaining high connection accuracy and stability.

[0021] This specific implementation method has the following advantages:

[0022] High insertion and extraction resistance: Made of stainless steel, significantly improving the service life of the ferrule in high-frequency testing;

[0023] High structural strength: The overall structure is stable, and its compressive and torsional strength is superior to that of traditional plastic ferrules;

[0024] High optical coupling precision: The 8-core through-holes are evenly arranged with high precision, ensuring low optical signal loss;

[0025] High compatibility: Non-standard size design can be customized according to the platform to meet diverse testing needs;

[0026] Precise and repeatable positioning: It is equipped with a dedicated positioning hole and slot to maintain reliable positioning during insertion and removal.

[0027] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A plug-resistant 8-fiber multimode stainless steel test ferrule, characterized by: It includes a ferrule body (1), which has a flat rectangular structure and is made of stainless steel; the ferrule body (1) has multiple parallel optical fiber through holes (11) inside, and the aperture of the optical fiber through holes (11) is adapted to the multimode optical fiber.

2. The plug-resistant 8-fiber multi-mode stainless steel test ferrule of claim 1, wherein: The insertion surface (2) of the ferrule body (1) is provided with two circular positioning holes (21).

3. The plug-resistant 8-fiber multi-mode stainless steel test ferrule of claim 1, wherein: The side of the insert body (1) is provided with a stepped slot (13), and the transition of the stepped slot (13) is provided with an arc transition.

4. The plug-resistant 8-fiber multi-mode stainless steel test ferrule of claim 1, wherein: The insertion surface (2) of the ferrule body (1) is provided with an insertion interface (22). The insertion surface (2) is a high-precision plane and is a rear end surface that has been ground or polished.

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