CN211236344U - Multi-core multi-channel plug-in connector - Google Patents

Abstract

The utility model relates to a multi-core multi-channel plug-in connector, which comprises a male connector, an adapter and a female connector. One end of the male connector is provided with a plurality of ceramic PINs, and both ends of the ceramic PINs are There is an oval structure, the oval structure is composed of a first arc and a second arc, the first arc is arranged at the end of the ceramic PIN, the male connector and the female connector pass through the the adapter described above. The multi-core and multi-channel plug-in connector of the utility model has the advantages of improving the accuracy of the outer diameter of the ceramic PIN, preventing damage to the socket when the ceramic PIN is repeatedly inserted and withdrawing, and improving the repeatability of the plugging and unplugging.

Description

A multi-core multi-channel plug-in connector

technical field

The utility model relates to the technical field of optical fiber connectors, in particular to a multi-core multi-channel plug-in connector.

Background technique

MPO connector is a type of optical fiber connector, MPO (Multi Push On) is a type of multi-core optical fiber connector, adopted by the IEEE standard as a type of connector for 40G/100G transmission. MPO high-density optical fiber pre-connection system is currently mainly used in three major fields: the application of high-density environment in data centers, the application of optical fiber to the building, and the connection application in optical splitter, 40G, 100G, QSFP+ and other optical transceiver equipment. MPO connector is a multi-core connector standard, usually 12 fibers are arranged in one column, which can support one or more columns of optical fibers in the same MPO connector. The standard is regulated by IEC61754-7. Different numbers of cores are divided into one column (12 cores) and multiple columns (24 cores or more). MPO connector types are distinguished by several factors according to IEC61754-7: core number (fiber array number, Array Number), male and female (Male-Female), polarity (Key), polishing type (PC or APC).

Existing MPO fiber optic connectors have the following disadvantages:

1. In the MPO fiber optic connector, the guide pin (PIN) used is made of stainless steel. The guide pin can improve the accuracy of the docking of the two connectors. It is limited to the processing accuracy of the metal PIN. The product using the metal PIN pin has a repeatability of insertion and removal. Poor data and poor repeatability indicators;

2. Although the two end faces of the metal PIN are elliptical, when the PIN needle is inserted into the centering hole of the MPO ferrule, it will still have a cutting effect on the material in the PIN hole. The holes will become irregular, which will cause the MPO ferrule to perform poorly in repetitive tests;

3. The outer diameter of the metal PIN needle is only less than 0.6mm, and the length is large, which is easy to cause the PIN needle to bend during use, resulting in a high product scrap rate.

For this reason, we have developed a multi-core multi-channel plug-in connector to solve the above shortcomings.

Utility model content

The purpose of the utility model is to provide a multi-core and multi-channel plug-in connector in order to overcome the shortcomings of the prior art, which has the advantages of improving the accuracy of the outer diameter of the ceramic PIN. Repeatability, etc.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a multi-core multi-channel plug-in connector, comprising a male connector, an adapter and a female connector, and one end of the male connector is provided with a plurality of ceramic PIN, an elliptical structure is provided at both ends of the ceramic PIN, and the elliptical structure is composed of a first circular arc and a second circular arc, and the first circular arc is arranged at the end of the ceramic PIN, so The male connector and the female connector are inserted through the adapter.

Preferably, the diameter of the ceramic PIN is 0.547mm˜0.549mm.

Preferably, the radius of the first circular arc is greater than the radius of the second circular arc.

Preferably, one end of the female connector is provided with a plurality of circular sockets, the female connector is of a flat structure, and one side of the socket is provided with an upward convex key, and the socket is away from one of the upward convex keys. A first plane is arranged on the side.

Preferably, the male connector has a flat structure, a downward convex key is provided on one side of the ceramic PIN, and a second plane is provided on the side of the ceramic PIN away from the downward convex key.

Preferably, the adapter is a hollow structure, one end of the adapter is provided with a strip-shaped groove, and the other end of the adapter is provided with a flat groove.

Preferably, the downward protruding key is inserted into the bar-shaped groove, the first plane is inserted into the flat groove, and the ceramic PIN is inserted into the socket.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

1. The ceramic PIN is processed by the developed special processing equipment to improve the outer diameter accuracy of the ceramic PIN;

2. Improve the transition between the oval shape and the cylindrical surface at both ends of the ceramic PIN, and formulate a special internal processing technology to ensure that the ceramic PIN will not be damaged when the ceramic PIN is repeatedly inserted and pulled in the MPO ferrule;

3. The accuracy is increased, and the arc transition at both ends is processed through a special process, which reduces the insertion loss of the MPO ferrule using this ceramic PIN, and the insertion and removal repeatability is improved.

Description of drawings

1 is an exploded schematic view of the multi-core multi-channel plug-in connector according to the present invention;

Accompanying drawing 2 is the structural representation of the ceramic PIN of the utility model;

Accompanying drawing 3 is the enlarged view of place A in accompanying drawing 2 of the utility model.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In FIGS. 1 to 3 , a multi-core multi-channel pluggable connector includes a male connector 30 , an adapter 20 and a female connector 10 , and the male connector 30 and the female connector 10 are plugged together through the adapter 20 .

One end of the male joint 30 is provided with two ceramic PIN35 made of zirconia material to improve the hardness of the ceramic PIN35, the surface roughness of the removed material is 0.2μm, and the diameter of the ceramic PIN35 is 0.548±0.001mm. Two ends of the ceramic PIN 35 are provided with an elliptical structure. The elliptical structure consists of a first arc 350 and a second arc 351 . The radius of the first arc 350 is larger than that of the second arc 351 . The first arc 350 is provided at the end of the ceramic PIN 35 .

The adapter 20 is a hollow structure. One end of the adapter 20 is provided with a strip groove 21 , and the other end of the adapter 20 is provided with a flat groove 22 .

The male connector 30 has a flat structure. A downward protruding key 31 is provided on one side of the ceramic PIN 35 , a second plane 32 is provided on the side of the ceramic PIN 35 away from the downward protruding key 31 , and the downward protruding key 31 is inserted into the bar groove 21 .

One end of the female connector 10 is provided with two circular sockets 15, and the ceramic PIN35 is inserted into the sockets 15. The female connector 10 has a flat structure. One side of the socket 15 is provided with an upward convex key 11 , and a side of the socket 15 away from the upward convex key 11 is provided with a first plane 12 , and the first plane 12 is inserted into the plane groove 22 .

The above are only specific application examples of the present invention, and do not constitute any limitation to the protection scope of the present invention. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims (7)

1. A multi-core multi-channel plug-in connector is characterized in that: including a male joint (30), an adapter (20) and a female joint (10), the one end department of male joint (30) is equipped with a plurality of pottery PIN (35), the both ends department of pottery PIN (35) is equipped with an oval structure, oval structure comprises first circular arc (350) and second circular arc (351), first circular arc (350) set up the tip of pottery PIN (35), male joint (30) with female joint (10) are through adapter (20) are pegged graft.

2. The multi-core multi-channel plug-in connector as claimed in claim 1, wherein the ceramic PIN (35) has a diameter of 0.547mm to 0.549 mm.

3. The multi-core multi-channel plug-in connector of claim 2, wherein a radius of the first circular arc (350) is larger than a radius of the second circular arc (351).

4. The multi-core multi-channel plug-in connector as claimed in claim 3, wherein a plurality of circular insertion holes (15) are formed at one end of the female connector (10), the female connector (10) is of a flat structure, an upward protruding key (11) is formed on one side of each insertion hole (15), and a first plane (12) is formed on one side, away from the upward protruding key (11), of each insertion hole (15).

5. The multi-core multi-channel plug-in connector as claimed in claim 4, wherein the male connector (30) is of a flat structure, a downward-protruding key (31) is provided on one side of the ceramic PIN (35), and a second plane (32) is provided on one side of the ceramic PIN (35) away from the downward-protruding key (31).

6. The multi-core multi-channel plug-in connector as claimed in claim 5, wherein the adapter (20) is a hollow structure, a strip-shaped groove (21) is formed at one end of the adapter (20), and a planar groove (22) is formed at the other end of the adapter (20).

7. The multi-core multi-channel plug-in connector as claimed in claim 6, wherein the downward protruding key (31) is plugged into the strip-shaped groove (21), the first plane (12) is plugged into the plane groove (22), and the ceramic PIN (35) is plugged into the socket (15).

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