WO2017035955A1

WO2017035955A1 - Integrated core assembly and processing method thereof

Info

Publication number: WO2017035955A1
Application number: PCT/CN2015/094980
Authority: WO
Inventors: 陈文清; 陈文渊
Original assignee: 深圳市普瑞昇科技有限公司
Priority date: 2015-08-28
Filing date: 2015-11-19
Publication date: 2017-03-09
Also published as: CN105044859A; CN105044859B

Abstract

An integrated core assembly and processing method thereof. The core assembly comprises a main core assembly (10), a molded and integrated end handle (20), an interconnection hole (30) passing through the main core assembly (10) and the end handle (20). The interconnection hole (30) comprises an end adjacent to the main core assembly (10) and provided with a wire insertion hole (310) thereat. The interconnection hole (30) also comprises conical holes (320, 330, 340, 350) communicated with at least one of the wire insertion hole (310). Each of the conical holes (320, 330, 340, 350) has one end away from one of the wire insertion holes (310) and having a diameter exceeding that of another end of each of the conical holes (320, 330, 340, 350). The main core assembly (10) and the end handle (20) comprise a plastic material and are manufactured by molding to form an integrated form, ensuring a mold size consistency of the main core assembly (10) and the end handle (20). An external shape of the core assembly is configured according to a real requirement, enhancing product adaptability. The interconnection hole (30) disposed between the main core assembly (10) and the end handle (20) ensures interconnection precision between two optical fibers or an optical fiber and another transmission line. In addition, the interconnection hole (30) is provided with at least one conical holes (320, 330, 340, 350) communicated with the wire insertion holes (310), facilitating feeding of an adhesive into the interconnection hole (30).

Description

Integral ferrule and processing method thereof

Technical field

The present invention relates to the field of data transmission technologies, and in particular, to a monolithic ferrule.

Background technique

At present, ferrules have been widely used in the field of data transmission, especially in the field of optical fiber communication technology. As an important part of the fiber optic connector, the ferrule precisely pairs the two end faces of the fiber and precisely aligns the axes of the two fibers so that the optical energy output from the transmitting fiber can be coupled to the receiving fiber to the utmost extent. Go in and minimize the impact on the system. However, the existing ferrule is generally made by the ferrule body and the tail shank, which often causes the ferrule body to have the same size of the shank exposed, the stability is poor, the yield is low, and the ferrule body and the shank cannot be used for fiber docking. The alignment accuracy of the holes after crimping affects the docking and use of the fibers. At present, some ferrules and tail shanks are fired from ceramics, and after the firing is completed, the holes for fiber butting are added, so that there are many processing steps, complicated processes, low production efficiency, and difficult processing of ceramic materials. Plastic deformation and precision stability are poor, and processing costs are high.

Summary of the invention

The object of the present invention is to provide a monolithic ferrule and a processing method thereof, which can ensure the centering precision of the ferrule body and the tail shank, high yield, high production efficiency, and high plasticity and denaturation.

In order to achieve the object of the present invention, the technical solution adopted is:

The utility model relates to a monolithic ferrule comprising a ferrule body, a tail shank integrally molded with the ferrule body, a mating hole penetrating through the ferrule body and the shank, and a mating hole is provided at one end of the mating hole near the ferrule body, and the mating hole The utility model further comprises at least one tapered hole communicating with the wire insertion hole. The diameter of the tapered hole away from one end of the wire insertion hole is larger than the diameter of one end near the wire insertion hole, and the ferrule body and the tail shank are made of plastic material.

The ferrule body and the tail shank are made of plastic material and integrally molded by injection molding to ensure the consistency of the ferrule body and the tail shank molding size, high yield, high production efficiency, suitable for mass production, and injection molding. The integral ferrule is formed, and the shape of the ferrule is set according to actual needs, so that the plastic deformation of the product is high and the adaptability is wider. There is a through hole between the ferrule body and the tail shank to ensure two The precision of the connection between the root fiber or other transmission lines makes the data transmission more accurate; and the butt hole is provided with at least one tapered hole communicating with the wire insertion hole, so that the adhesive glue can be better poured into the butt hole, so that two Fiber or other transmission lines are more tightly coupled.

The technical solution is further explained below:

Further, the docking hole includes a first tapered hole, a second tapered hole, a third tapered hole and a fourth tapered hole which are sequentially connected, and the fourth tapered hole is connected with the wire insertion hole, the first tapered hole Connected to the end face of the shank. The diameter of the docking hole is gradually reduced from one end away from the plug hole toward the end close to the plug hole, and the adhesive is poured from the first tapered hole and passes through the second tapered hole, the third tapered hole and the fourth After the tapered hole, enter the wire insertion hole, so that the adhesive glue is better poured into the butt hole, so that the two fibers or other transmission lines are more tightly combined.

Further, the outer circumference of the shank is recessed with a plurality of mounting grooves arranged in the circumferential direction. The installation slot is convenient for the connection between the ferrule and the external structure to prevent the ferrule from rotating freely, so that the mating ground is firmer.

Further, the outer circumference of the shank is recessed with four mounting grooves uniformly distributed in the circumferential direction. The four mounting slots are evenly arranged circumferentially around the outer circumference of the shank, so that the positioning of the ferrule and the external structure is more accurate, and the transmission precision of the signal after docking is ensured.

Further, the outer side of one side of the ferrule body away from the tail shank is provided with an abutting surface, and the cross section of the abutting surface is any one of a trapezoidal shape, a semicircular shape or a "several" shape. Through the docking surface, the docking position of the ferrule and the optical fiber or other transmission line is more accurate, and the transmission precision of the signal after docking is ensured.

Further, the ferrule body and the tail shank are made of polyphenylene sulfide, and the polyphenylene sulfide contains silica having a mass percentage of not more than 70. The ferrule body and the shank are made of polyphenylene sulfide having a mass percentage of silica of not more than 70, which makes the plastic have high hardness, high return loss and polishing property, and high environmental applicability.

The invention also provides a method for processing a monolithic ferrule comprising the following steps:

Making a mold according to the finished product size;

Injection molding in the mold with liquid plastic;

After the demolding, a monolithic ferrule is formed.

The ferrule body and the tail shank are made of plastic material and integrally molded by injection molding to ensure the consistency of the ferrule body and the tail shank. The yield is high and the production efficiency is high. It is suitable for mass production and high stability. High dimensional accuracy, the outer diameter of the ferrule and the positional accuracy of the fiber hole are not more than 1μm; The plastic method forms a monolithic ferrule, and the shape of the ferrule is set according to actual needs, so that the product has high plasticity and high adaptability.

Compared with the prior art, the present invention has the following beneficial effects:

The ferrule body and the tail shank of the invention are made of plastic material and integrally formed by injection molding, thereby ensuring the consistency of the ferrule body and the tail shank molding size, high yield rate, high production efficiency, suitable for mass production; The injection molding method forms an integral ferrule, and the shape of the ferrule is set according to actual needs, so that the plastic deformation of the product is high and the adaptability is wider. A through hole is formed between the ferrule body and the shank to ensure the accuracy of the connection between the two fibers or other transmission lines, so that the data transmission is more accurate; and the docking hole is provided with at least one tapered hole communicating with the splicing hole. It is better to pour the adhesive into the docking hole to make the two fibers or other transmission lines bond more tightly.

DRAWINGS

1 is a schematic structural view of an integral ferrule according to a first embodiment of the present invention;

Fig. 2 is a view taken along the line A in Fig. 1;

Description of the reference signs:

10. ferrule body, 110. butt joint, 20. tail handle, 210. mounting groove, 30. butt hole, 310. wire hole, 320. first tapered hole, 330. second tapered hole, 340. a third tapered hole, 350. a fourth tapered hole.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

As shown in FIG. 1 , an integral ferrule includes a ferrule body 10 , a tail shank 20 integrally molded with the ferrule body 10 , a mating hole 30 extending through the ferrule body 10 and the shank 20 , and the docking hole 30 is adjacent to One end of the ferrule body 10 is provided with a wire insertion hole 310. The matching hole 30 further includes at least one tapered hole communicating with the wire insertion hole 310. The diameter of the tapered hole away from the end of the wire insertion hole 310 is closer to the end of the wire insertion hole 310. The diameter is large, and the ferrule body 10 and the tail shank 20 are made of plastic material.

The ferrule body 10 and the tail shank 20 are made of plastic material and integrally molded by injection molding, thereby ensuring the uniformity of the forming dimensions of the ferrule body 10 and the tail shank 20, high yield, high production efficiency, and suitable for mass production; The integral ferrule is formed by injection molding, and the shape of the ferrule is made according to actual needs. The setting makes the product more flexible and adaptable. A through hole 30 is provided between the ferrule body 10 and the tail shank 20 to ensure the accuracy of the connection between the two optical fibers or other transmission lines, so that the data transmission is more accurate; and the docking hole 30 is provided with at least one and the wire insertion hole 310. The connected tapered holes allow the adhesive to be better poured into the butt holes 30, allowing the two fibers or other transmission lines to be more tightly bonded.

In this embodiment, the docking hole 30 includes a first tapered hole 320, a second tapered hole 330, a third tapered hole 340, and a fourth tapered hole 350, which are sequentially connected, and the fourth tapered hole 350 and the insertion line The holes 310 are connected, and the first tapered holes 320 communicate with the end faces of the stalks 20. The diameter of the docking hole 30 is gradually reduced from one end away from the plug hole 310 toward the end close to the plug hole 310, so that the adhesive glue is better poured into the mating hole 30 and enters the plug hole 310, so that the two fibers are Or other transmission lines are more closely combined. The docking hole 30 can also be provided with one or more tapered holes according to actual needs.

As shown in FIGS. 1 and 2, the outer circumference of the stalk 20 is recessed with a plurality of mounting grooves 210 arranged in the circumferential direction. The mounting groove 210 facilitates the connection between the ferrule and the external structure to prevent the ferrule from rotating freely, so that the mating ground is stronger.

In the present embodiment, the outer circumference of the stalk 20 is recessed with four mounting grooves 210 uniformly distributed in the circumferential direction. The four mounting slots 210 are evenly arranged circumferentially around the outer circumference of the tail shank 20, so that the positioning of the ferrule and the external structure is more accurate, and the transmission accuracy of the signal after docking is ensured. The shank 20 can also be provided with more than two mounting slots 210 according to actual needs.

As shown in FIG. 1 , the outer periphery of one side of the ferrule body 10 away from the tail shank 20 is provided with an abutting surface 110 , and the abutting surface 110 has a trapezoidal cross section. The positioning of the ferrule and the optical fiber or other transmission line is more accurate through the docking surface 110, and the transmission precision of the signal after docking is ensured. The cross section of the abutting surface 110 can also be set to a semicircular or "several" shape according to actual needs.

In the present embodiment, the ferrule body 10 and the stalk 20 are made of polyphenylene sulfide, and the polyphenylene sulfide contains silica having a mass percentage of not more than 70. The ferrule body 10 and the stalk 20 are made of polyphenylene sulfide having a mass percentage of silica of not more than 70, so that the plastic has high hardness, high return loss and polishing property, and high environmental applicability. The ferrule body 10 and the tail shank 20 can also be made of other plastic materials according to actual needs.

Making a mold according to the finished product size;

Injection molding in the mold with liquid plastic;

After the demolding, a monolithic ferrule is formed.

The ferrule body 10 and the stalk 20 are made of plastic material and integrally molded by injection molding, thereby ensuring uniformity of molding dimensions of the ferrule body 10 and the stalk 20, high stability and yield, and high production efficiency, suitable for large quantities. Ultra-high dimensional accuracy of production and high stability, the outer diameter of the ferrule and the positional accuracy of the fiber hole are not more than 1μm; and the integral ferrule is formed by injection molding, and the shape of the ferrule is set according to actual needs, so that the product is High plasticity and adaptability.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A unitary ferrule, comprising: a ferrule body; a tail shank integrally molded with the ferrule body; a mating hole penetrating the ferrule body and the shank, the mating hole being close to the One end of the ferrule body is provided with a wire insertion hole, and the butt hole further includes at least one tapered hole communicating with the wire insertion hole, and a diameter of the tapered hole away from one end of the wire insertion hole is closer to the The diameter of one end of the wire insertion hole is large, and the ferrule body and the tail shank are made of plastic material.
The one-piece ferrule according to claim 1, wherein the mating hole comprises a first tapered hole, a second tapered hole, a third tapered hole and a fourth tapered hole which are sequentially connected, A fourth tapered hole is connected to the wire insertion hole, and the first tapered hole communicates with an end surface of the shank.
The one-piece ferrule according to claim 1, wherein the outer circumference of the shank is recessed with a plurality of mounting grooves arranged in the circumferential direction.
The one-piece ferrule according to claim 3, wherein the outer circumference of the shank is recessed with four of the mounting grooves uniformly distributed in the circumferential direction.
The one-piece ferrule according to claim 1, wherein the outer side of one side of the ferrule body away from the shank is provided with an abutting surface, and the cross-section of the abutting surface is trapezoidal, semi-circular or " Any of a few shapes.
The integrated ferrule according to any one of claims 1 to 5, wherein the ferrule body and the shank are made of polyphenylene sulfide, and the polyphenylene sulfide contains a mass percentage of not more than 70 silica.
A method of processing a monolithic ferrule according to any one of claims 1 to 6, comprising the steps of:

Making a mold according to the finished product size of the integral ferrule;

Injection molding in the mold with liquid plastic;

After the demolding, a monolithic ferrule is formed.