CN114824907A

CN114824907A - Photoelectric composite optical fiber connector

Info

Publication number: CN114824907A
Application number: CN202210624826.XA
Authority: CN
Inventors: 张登平; 王子瑜; 赵毅; 张康健; 郑忠; 卓永
Original assignee: Jiangsu Unikit Optical Technology Co Ltd
Current assignee: Jiangsu Unikit Optical Technology Co Ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-07-29

Abstract

The invention mainly relates to the field of optical fiber connectors, in particular to a photoelectric composite optical fiber connector, which comprises: a conductive sheet having a contact portion, a connection portion, and an insertion portion; a rear inner housing and a front inner housing. The rear inner shell is provided with an insertion cavity matched with the insertion part, and a groove part communicated with the insertion cavity is arranged at the tail part close to the rear inner shell; an avoiding part for accommodating the connecting part is arranged at a joint where the front inner shell and the rear inner shell are combined, the avoiding part is used for communicating the insertion cavity with the outside and guiding the insertion cavity to the bearing part; when the insertion part of the conducting strip is inserted into the insertion cavity, at least one part of the insertion part enters the groove part from the insertion cavity, the insertion part positioned in the groove part is electrically connected with a cable, and the contact part of the conducting strip is guided to the bearing part through the avoiding part after the front inner shell and the rear inner shell are combined.

Description

Photoelectric composite optical fiber connector

Technical Field

The invention mainly relates to the field of optical fiber connectors, in particular to a photoelectric composite optical fiber connector.

Background

With the development of the 5G technology, more and more 5G base stations need to be arranged, and the corresponding base stations all need to supply power, so that the photoelectric composite cable is produced. In order to facilitate the combination of the optical-electrical composite cable and the optical fiber connector, the current measure is to configure a conductive bar on the basis of the existing optical fiber connector to realize the optical-electrical combination, but the structure has a larger volume.

The prior art, as disclosed in the patent with application number 201911344083.5, entitled connector assembly and photoelectric composite connector, discloses a photoelectric composite connector, which is characterized by comprising a front shell, a rear shell, an optical fiber, a cable and a lead terminal, wherein the front shell is provided with a through groove penetrating through the front shell along the axial direction, the inner wall of the through groove is provided with a first groove communicated with the through groove, the rear shell comprises a main body part and a clamping part connected to one end of the main body part, the clamping part is provided with a first channel penetrating through the clamping part along the axial direction, the outer surface of the clamping part is provided with a second groove along the axial direction, the clamping part is positioned in the through groove, the first groove and the second groove are butted to form an accommodating space, one end of the through groove far away from the main body part is an optical port, the front shell is provided with an opening communicating the accommodating space with the outside, and the lead terminal is accommodated in the opening, the leading-connecting terminal forms an electric port, the optical fiber penetrates through the main body part and extends to the optical port along the first channel, the cable penetrates through the main body part and is fixedly contained in the containing space, and the cable is electrically connected with the leading-connecting terminal. The scheme of this patent is that the inside setting that is used for holding the lead terminal in the connector, the passageway of conducting strip promptly, such structure is complicated, and the installation is inconvenient, and manufacturing cost is higher.

Disclosure of Invention

In order to solve the technical problems, the invention provides a photoelectric composite optical fiber connector, which is realized by the following technical scheme:

an opto-electronic composite fiber connector comprising:

a conductive sheet having a contact portion for making electrical contact with an external device, a connection portion provided between the contact portion and the insertion portion, and an insertion portion;

a ferrule assembly having an optical interface, the ferrule assembly configured to secure an optical fiber;

the inner shell comprises a front inner shell and a rear inner shell, wherein the front inner shell and the rear inner shell are both provided with a through inner cavity; the ceramic ferrule assembly is configured in the inner cavity of the front inner shell, the optical interface extends out of the front end of the front inner shell, the front end of the rear inner shell is provided with an extension part, and the front inner shell is fixed on the extension part through a clamping part;

the surface of the front inner shell is provided with a bearing part for carrying the contact part; the rear inner shell is provided with an insertion cavity matched with the insertion part, and a groove part communicated with the insertion cavity is arranged at the tail part close to the rear inner shell; an avoiding part for accommodating the connecting part is arranged at a joint where the front inner shell and the rear inner shell are combined, the avoiding part is used for communicating the insertion cavity with the outside and guiding the insertion cavity to the bearing part;

when the insertion part of the conducting strip is inserted into the insertion cavity, at least one part of the insertion part enters the groove part from the insertion cavity, the insertion part positioned in the groove part is electrically connected with a cable, and the insertion part is guided to a contact part through a connecting part in the avoiding part after the front inner shell and the rear inner shell are combined.

Preferably, the extension is inserted into the inner cavity of the front inner housing and extends into a portion of the inner cavity of the front inner housing.

Preferably, the surfaces on which the contact portion and the insertion portion are located are parallel to each other.

Preferably, the conductive sheets are provided in two numbers and main bodies of the conductive sheets are disposed on the same side of an inner housing formed by joining the front inner housing and the rear inner housing;

the contact portion is disposed on the same surface as the conductive sheet main body or the contact portions are respectively disposed on side surfaces adjacent to the conductive sheet main body.

Preferably, the conductive plates are provided in two and disposed at both sides of the inner case, respectively.

Preferably, the insertion cavity and the groove portion are respectively provided at both sides of the inner case.

Preferably, the mobile phone further comprises an outer shell, the outer shell is sleeved on the inner shell and can move back and forth, and the outer shell is provided with an opening allowing the contact part to be communicated with the outside.

Preferably, the rear inner case has an extension portion provided at a rear portion thereof, the extension portion being provided with a connection groove communicating with the groove portion from the rear portion of the rear inner case, the connection groove being configured to receive a cable electrically connected to the insertion portion in the groove portion.

The invention has the beneficial effects that:

according to the photoelectric composite optical fiber connector provided by the invention, the rear inner shell is provided with the insertion cavity and the groove part, the insertion part of the conducting strip can extend into the groove part after being inserted into the insertion cavity, the cable can be electrically connected with the conducting strip in the groove part, the bulge or the combination part formed by the electrical connection is accommodated in the groove part, the contact part of the conducting strip is led out from the crack between the front inner shell and the rear inner shell, and the whole structure and the assembly are simple and convenient.

Drawings

FIG. 1 is an exploded view of the optical-electrical composite optical fiber connector according to the present invention;

FIG. 2 is a schematic structural diagram of a conductive sheet of the optoelectrical composite optical fiber connector according to the present invention;

FIG. 3 is a schematic view illustrating a rear view structure of a front inner housing of the optical-electrical composite optical fiber connector according to the present invention;

FIG. 4 is a schematic structural diagram of the front inner housing of the optoelectrical composite optical fiber connector of the present invention;

FIG. 5 is a schematic structural diagram of the optoelectronic composite optical fiber connector according to the present invention, wherein the front inner housing is configured with a conductive sheet;

FIG. 6 is a front side view structure diagram of the rear inner housing of the optical-electrical composite optical fiber connector according to the present invention;

FIG. 7 is a schematic structural diagram of the rear inner housing of the optoelectrical composite optical fiber connector of the present invention;

FIG. 8 is a front view structure diagram of the rear inner housing of the optical-electrical composite optical fiber connector of the present invention;

FIG. 9 is a schematic top sectional view of the rear inner housing of the optical-electrical composite optical fiber connector of the present invention, taken along direction AA in FIG. 8;

FIG. 10 is a schematic diagram illustrating a top view of the rear inner housing of the optoelectrical composite fiber connector according to the present invention;

FIG. 11 is a schematic side sectional view of the rear inner housing of the optoelectrical composite optical fiber connector of the present invention, taken along the direction BB in FIG. 10;

FIG. 12 is a structural diagram illustrating an assembled state of the optical-electrical composite optical fiber connector according to the present invention;

FIG. 13 is a schematic diagram of the structure of the contact portion of the conductive sheet of the optoelectrical composite optical fiber connector of the present invention at the side;

description of reference numerals: the chip comprises a conducting strip 1, a contact part 2, a connecting part 3, an insertion part 4, a ferrule assembly 5, a front inner shell 6, a rear inner shell 7, a limiting block 8, an inner cavity 9, an extension part 10, a protrusion 11, a bayonet 12, a notch 13, a bearing part 14, an insertion cavity 15, a groove part 16, a relief part 17, an extension part 18 and a connecting groove 19.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

The photoelectric composite cable is a composite cable containing a cable and optical fibers, wherein two cables are generally arranged and respectively correspond to a positive pole and a negative pole of a power supply, and the optical fibers are contained in the optical cables and are used for optical communication. A power supply is usually arranged at one use end, the anode and the cathode of the power supply are respectively and electrically connected with the two optical cables, so that electric energy is transmitted to the photoelectric composite optical fiber connector, meanwhile, optical signal transmission is carried out between one use end optical fiber and optical equipment, and signals are transmitted to the photoelectric composite optical fiber connector.

An optoelectrical composite fiber connector, as shown in fig. 1, 2, 3, 4, 5, 6 and 7, comprising:

a conductive sheet 1 has a contact portion 2, a connection portion 3, and an insertion portion 4, the contact portion 2 being for making electrical contact with an external device, and the connection portion 3 being provided between the contact portion 2 and the insertion portion 3. The conductive sheet 1 may be made of a sheet of copper sheet and ensures that the contact portion 2 has a sufficient contact area while the insertion portion 4 has a sufficient area to be soldered or crimped with the cable. The contact part 2 and the insertion part 4 are parallel to each other, i.e. they are at different heights, so that a connection part 3 connecting the two parts is naturally formed when bending the conductive sheet 1. The external device can be an adapter, a connector or a power supply.

And a ferrule assembly 5 having an optical interface for securing an optical fiber. The ferrule assembly 5 mainly includes a ferrule fixed to the ferrule, a ferrule fixing the optical fiber through glue, and an optical fiber end fixed to a port of the ferrule, where the optical interface is a port of the ferrule, and the optical interface is used for communicating with optical equipment. The base body is provided with a plurality of bayonets which are used for being matched with a limiting block 8 at the front end of the front inner shell 6 to prevent the ceramic ferrule assembly from rotating. The spring is matched with the base body to enable the ceramic ferrule to move back and forth so as to keep certain pressure when the ceramic ferrule is contacted with the adapter or the communication device, thereby ensuring the stability of optical fiber communication.

The front inner housing 6 and the rear inner housing 7, and the front inner housing 6 and the rear inner housing 7 are both provided with a through inner cavity 9. The ferrule assembly 5 is disposed in the inner cavity 9 of the front inner housing 6 and the optical interface extends from the front end of the front inner housing 6, an extension 10 is provided at the front end of the rear inner housing 7, and the front inner housing 6 is fixed to the extension 10 by a snap-fit portion. Specifically, the main body of the extension portion 10 is cylindrical, the outer surface of the main body is provided with a protrusion 11, the portion of the front inner shell 6 close to the tail portion is provided with a bayonet 12, so that the extension portion 10 can extend into the inner cavity 9 of the front inner shell 6 and is fixed with the protrusion 11 through the bayonet 12 in a matching mode, meanwhile, the front inner shell 6 is provided with a notch 13 allowing the tail portion of the front inner shell to generate certain elastic deformation, and the front inner shell 6 is inserted into the rear inner shell 7 more easily. The extension 10 extends into a portion of the internal cavity 9 of the front inner housing 6, the remaining portion of the internal cavity 9 of the front inner housing 6 thus remaining near the front end housing the ceramic plug assembly 5, the internal cavity in the extension 10 forming an abutment for the spring, causing the spring to abut in the internal cavity 9 of the extension 10. After the front inner shell 6 and the rear inner shell 7 are fixed together, the inner cavity 9 is communicated, so that the optical fiber in the photoelectric composite cable can be inserted from the tail end of the rear inner shell 7 and fixed to the ceramic ferrule and finally extends out from the front end of the front inner shell 6.

As shown in fig. 8, 9, 10, and 11, the front inner housing 6 is provided on its surface with a carrier 14 for mounting the contact portion 2 of the conductive sheet 1. The contact portion 14 may be a raised platform or a flat surface with the front inner housing 6. The rear inner housing 7 is provided with an insertion cavity 15 which is engaged with the insertion portion 4 of the conductive plate 1, the insertion cavity 15 is parallel to the inner cavity 9, and a groove portion 16 which is communicated with the insertion cavity 15 is provided near the tail portion of the rear inner housing 7. A relief portion 17 for accommodating the connection portion 3 is provided at a joint where the front inner housing 6 and the rear inner housing 7 are joined, and the relief portion 17 communicates the insertion cavity 15 with the outside and guides the insertion cavity 15 to the bearing portion 14. One insertion cavity 15 and one groove portion 16 correspond to one conductive sheet 1.

When inserting portion 4 of conductive sheet 1 into inserting cavity 15, inserting portion 4 at least partially enters into groove portion 16 from inserting cavity 15, inserting portion 4 located in groove portion 16 is electrically connected with the cable, and since inserting portion 4 is electrically connected with the cable, a protrusion or a combination portion is inevitably formed, and thus the combination portion is received in groove portion 16. When the front inner case 6 and the rear inner case 7 are coupled, the insertion portion 4 of the conductive sheet 1 is guided to the contact portion 2 on the carrier portion 14 by the escape portion 17. When the tail end of the front inner housing 6 and the front end (non-extension portion 10) of the rear inner housing 7 are tightly fitted, the escape portion 17 may be a groove provided on the tail end surface of the front inner housing 6 or the front end surface of the rear inner housing 7, or both the tail end surface of the front inner housing 6 and the front end surface of the rear inner housing 7 may be provided with grooves so as to accommodate the connection portion 3. The avoiding portion 17 may be formed by leaving a gap at the joint of the tail end of the front inner housing 6 and the rear inner housing 7 after the two are combined, that is, the two are not completely attached to each other, and the gap is the avoiding portion.

An extension portion 18 is provided at the rear portion of the rear inner case 7, the extension portion 18 is provided with a connection groove 19, the connection groove 19 communicates with the groove portion 16 from the rear portion of the rear inner case 7, and the connection groove 19 is used to receive a cable electrically connected to the insertion portion 4 in the groove portion 16. After the cable is electrically connected to the insertion portion 4 within the groove portion 16, the cable can be fixed to the extension portion 18 by being sleeved into a metal fixing sleeve 20, as shown in fig. 12. The boot 20 may be hexagonal or polygonal to allow for easier nesting and mating of cables on the extension 18. Finally, extension 18 is wrapped by tail sleeve 21.

For a connector similar to the SC interface, the connector further includes an outer housing 22, the outer housing 22 is fitted over an inner housing formed by combining a front inner housing and a rear inner housing and can move back and forth, and the outer housing 22 is provided with an opening 23 that allows the contact portion 2 to communicate with the outside. The outer shell 22 may close the groove portion 16 above.

The conductive sheet 1 is provided in two and the main body of the conductive sheet 1 is disposed on the same side of the inner housing formed by joining the front inner housing 6 and the rear inner housing 7, and the contact part 2 may be disposed on the same surface as the main body of the conductive sheet 1, or as shown in fig. 13, the contact part 2 may extend from the front end of the main body to both sides, so that the contact parts 2 are disposed on the side surfaces adjacent to the main body of the conductive sheet 1, i.e., on both sides of the inner housing, respectively. Meanwhile, it may be configured such that the conductive sheets 1 are respectively disposed on both sides of the inner case 1, and the insertion cavity 15 and the groove portion 16 are correspondingly disposed on both sides of the inner case.

Claims

1. An optical-electrical composite optical fiber connector is characterized in that:

the method comprises the following steps:

the surface of the front inner shell is provided with a bearing part for carrying the contact part; the rear inner shell is provided with an insertion cavity matched with the insertion part, and a groove part communicated with the insertion cavity is arranged at the tail part close to the rear inner shell; an avoiding part for accommodating the connecting part is arranged at a joint of the front inner shell and the rear inner shell, and the avoiding part is used for communicating the insertion cavity with the outside and guiding the insertion cavity to the bearing part;

2. The optoelectrical composite fiber connector of claim 1, wherein:

the extension is inserted into the inner cavity of the front inner housing and extends into a portion of the inner cavity of the front inner housing.

3. The optoelectrical composite fiber connector of claim 1, wherein:

the contact portion and the insertion portion are located on planes parallel to each other.

4. The optoelectrical composite fiber connector of claim 1, wherein:

the conducting strips are provided with two conducting strips, and the main bodies of the conducting strips are arranged on the same side of the inner shell formed by combining the front inner shell and the rear inner shell;

5. The optoelectrical composite fiber connector of claim 1, wherein:

the conducting strips are provided with two conducting strips and are respectively arranged on two sides of the inner shell.

6. The optoelectrical composite fiber connector of claim 5, wherein:

the insertion cavity and the groove portion are respectively disposed at both sides of the inner case.

7. The optoelectrical composite fiber connector of claim 1, wherein:

still include the shell body, the shell body cover is established but on the interior casing and the back-and-forth movement, the shell body is provided with the permission the opening of contact site and outside intercommunication.

8. The optical-electrical composite optical fiber connector according to any one of claims 1 to 7, wherein:

the rear inner housing has an extension portion at a rear portion thereof, the extension portion being provided with a connection groove communicating with the groove portion from the rear portion of the rear inner housing, the connection groove being used to receive a cable electrically connected to the insertion portion in the groove portion.