Insertion core device and manufacture method thereof

Abstract

The invention discloses a manufacture method of an insertion core device of a fiber connector. The manufacture method comprises that an insertion core assembly is provided; a fiber is inserted into a fiber jack of the insertion core assembly till the fiber is protruded out of the front end of the insertion core assembly for a preset distance; and an adhesive is filled into the insertion core assembly so that the adhesive can flow into the fiber jack, and after the adhesive is solidified, the fiber can be kept in a proper position in the fiber jack. According to the invention, the fiber can be smoothly inserted into the insertion assembly without damage, and the adhesive is not adhered to the part, protruded out of the front end of the insertion core assembly, of the fiber.

Description

technical field [0001] The invention relates to a ferrule device of an optical fiber connector and a manufacturing method of the ferrule device. Background technique [0002] Figure 1a shows a schematic diagram of a conventional single core ferrule assembly 10 for manufacturing fiber optic connectors; and Figure 1b shown Figure 1a A cross-sectional view of the single core ferrule assembly 10 is shown. [0003] Such as Figure 1a and Figure 1b As shown, at present, in the manufacturing process of single-core optical fiber connectors, the commonly used ferrule assembly 10 includes a ferrule 12 and a tail handle 11 connected to the rear end of the ferrule 12 . The ferrule tail handle 11 can be a plastic part formed on the rear end of the ferrule 12 by injection molding, or can be a metal part fixed on the rear end of the ferrule 12 by crimping. [0004] Such as Figure 1a and Figure 1b As shown, a housing cavity 14 for accommodating adhesive is formed in the ferrule ta...

AI Technical Summary

Problems solved by technology

[0005] In the existing technical scheme, since the adhesive is first injected into the accommodation cavity 14 of the ferrule assembly 10, and then the optical fiber is passed through the accommodation cavity 14 of the ferrule assembly 10 filled with the adhesive, bonding As the optical fiber is inserted, the gap between the optical fiber and the wall of the fiber insertion hole 15 of the ferrule assembly 10 is filled. This technical solution is simple and effective, and is widely used. Tendency to vary in size, which results in inconsistent removal of the adhesive pack prior to grinding the front face of the ferrule assembly 10, complicating processing

At the same time, since the adhesive is injected first and then the optical fiber is threaded, the adhesive injected first will produce certain resistance to the penetration of the optical fiber, especially when the optical fiber insertion hole 15 is small, when the optical fiber is inserted into the ferrule assembly 10 During the process of optical fiber, it is easy to cause dark damage to the optical fiber, or even break the optical fiber, resulting in an increase in the scrap rate or affecting the long-term reliability of the optical fiber connector.

In particular, when the surface of the optical fiber protruding from the front face of the ferrule assembly 10 must be presented in an adhesive-free state, although in theory it is possible to perform a certain degree of cleaning on the protruding bare fiber end to remove the adhesive material However, when cleaning the bare fiber, the bare fiber protruding from the front end of the ferrule is prone to mechanical damage or breakage caused by the cleaning action. Therefore, in order to protect the bare fiber from mechanical damage or breakage, it cannot be sufficiently cleaned. The cleanliness of the bare fiber protruding from the front end of the ferrule (adhesive-free level) does not meet the requirements, which affects the optical performance of the fiber

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