CN201965258U

CN201965258U - Optical fiber connector

Info

Publication number: CN201965258U
Application number: CN2010206521423U
Authority: CN
Inventors: 林宪助; 温祥吉; 颜素桢
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2010-12-10
Filing date: 2010-12-10
Publication date: 2011-09-07
Anticipated expiration: 2020-12-10

Abstract

The utility model relates to an optical fiber connector (1000) comprising lenses (1), optical fibers (3) and optical glue (4); each of the optical fibers comprises an inner core (31) and an outer coating which is coated on the outer surface of the inner core; each of the lenses (1) is provided with an installation hole (12) which extends back and forth and is in a regular polygon structure; the inner core on the front end of each optical fiber is inserted into the installation hole of the corresponding lens and is contacted with the inner wall of the installation hole; a channel which extends back and forth is formed between the two adjacent inner walls of the installation hole and the inner core; and the optical glue is applied in the installation hole of each lens, so that the optical fibers and the lenses are fixed together.

Description

The joints of optical fibre

[technical field]

The utility model is the joints of optical fibre that transmit the photoelectricity signal about a kind of.

[background technology]

(Universal Serial Bus, USB) interface has been widely used in numerous design of electronic devices as a kind of input/output interface of standard USB (universal serial bus).1994, famous computing machine in the 7 tame worlds such as Intel, Compaq, numeral, IBM, Microsoft, NEC, Northern Telecom and communication company united and have set up USB association (USB-IF), tentatively set up the USB interface standard.Up to the present, the successively issue of USB association versions such as 1.0,1.1,2.0 and 3.0, and the transfer rate of USB also little by little is being improved.Development and development of technology along with electronics industry, people are still in the transfer rate that constantly improves USB hardy, but the someone develops the USB connector of a kind of transmission optics signal with further raising transfer rate at present, related art can be consulted a kind of connector that transmits the light signal that January 14, disclosed Chinese invention patent application was disclosed for CN101345358A number in 2009, and this connector comprises insulating body, be fixed in the conducting terminal on the insulating body and be located on the insulating body and in order to carry out the fiber device of light signal transmission.Fiber device comprises embedded lens and the optical fiber that is coupled with lens light, and the fiber device of this connector maintains static on insulating body, and when this connector docked with the butt connector that has fiber device equally, this fiber device can provide the transmission of light signal.Optical fiber need be assembled into earlier in the mounting hole on the lens, makes light signal optically-coupled between optical fiber and lens.Yet, owing to have certain interval between optical fiber and the lens, can not combine reliably between optical fiber and the lens, increase interface loss, and then influenced the transmission of light signal.In addition, owing to there is the gap, may make between optical fiber and the lens comparatively accurate in locating, also can influence the transmission of light signal.

Therefore, necessary the joints of optical fibre are improved to address the above problem.

[utility model content]

Fundamental purpose of the present utility model is to provide a kind of joints of optical fibre that guarantee the light signal reliable transmission.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: a kind of joints of optical fibre, it comprises lens, optical fiber and optical cement, the outer quilt that optical fiber comprises inner core and is coated on the inner core outside, extension and mounting hole that become the regular polygon structure before and after described lens are provided with, the inner core of optical fiber front end is inserted in the mounting hole of lens and with the inwall of mounting hole and contacts, and form the passage that fore-and-aft direction extends between the inwall of two adjacent mounting holes and the inner core, optical cement is applied in the mounting hole of lens this optical fiber and lens is fixed together.

The utility model also can adopt following technical scheme: a kind of joints of optical fibre, it comprises the body along horizontal expansion, some lens, some optical fiber and optical cement, described some lens embed body and along transversely spaced from one another, the outer quilt that each optical fiber comprises inner core and is coated on the inner core outside, extension and mounting hole that become the regular polygon structure before and after each lens is provided with, the inner core of optical fiber front end is inserted in the mounting hole of lens, and optical cement is applied to this optical fiber and lens are fixed together.

Compared with prior art, the utlity model has following beneficial effect: the mounting hole of lens is the regular polygon structure, can guarantee that the geometric center of lens accurately aims at the geometric center of optical fiber inner core.In addition, also form passage/gap between the mounting hole of lens and the optical fiber inner core, flow through in it for optical cement, thereby guarantee lens and optical fiber inner core reliable connection.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of first embodiment of the utility model joints of optical fibre.

Fig. 2 is the view of another angle of Fig. 1.

Fig. 3 is the exploded view of Fig. 2.

Fig. 4 is the sectional view of Fig. 1 along the A-A direction.

Fig. 5 is the sectional view of Fig. 1 along the B-B direction.

Fig. 6 is the part enlarged drawing of Fig. 5.

Fig. 7 is the three-dimensional combination figure of second embodiment of the utility model joints of optical fibre.

Fig. 8 is the sectional view of Fig. 7 along the C-C direction.

Fig. 9 is the part enlarged drawing of Fig. 8.

[embodiment]

Please refer to Fig. 1 to shown in Figure 6, the utility model joints of optical fibre 100 first embodiments comprise the lens 1 that some one-tenth one are arranged and put, the optical fiber 3 that is coated on the body 2 of lens 1 outside and is connected to lens 1.

Lens 1 comprise the main part 11 that extends along fore-and-aft direction.The mounting hole 12 that extends before and after the center of main part 11 is provided with.Mounting hole 12 is regular hexagon structures, and this mounting hole 12 has the inwall 121 of six symmetric arrangement.In addition, the rear end of mounting hole 12 is anterior big than it.

Body 2 is along horizontal expansion, and lens 1 embed on the body 2 and along transversely spaced from one another.The rear portion of body 2 is provided with cavity 20, is provided with two locating slots 21 in the cavity 20.The mounting hole 12 of locating slot 21 and lens 1 aligns along fore-and-aft direction.In addition, body 2 front part sides 22 are provided with a pair of guide hole 24.Body 2 anteriomedial 23 are provided with front wide and rear narrow fluting 25.In the present embodiment, be furnished with a pair of lens 1 between fluting 25 and each guide hole 24.Body 2 front part sides 22 are outstanding forward than body 2 anteriomedial 23, thereby form a depressed part 26 that is positioned at body 2 anteriomedial 23 the place aheads.Lens 1 embed body 2, and the front end 10 of lens 1 extends in the depressed part 26 of front of body 2.

Optical fiber 3 comprises inner core 31 and is coated on the outer by 32 of inner core 31 outsides.Inner core 31 is a circular configuration.

Divested by 32 outside one section of optical fiber 3 front ends, one section inner core 31 is come out.Optical fiber 3 is assembled in the mounting hole 12 of lens 1, and wherein, inner core 31 is inserted into mounting hole 12, and inner core 31 only contacts with the middle part of each inwall 121 of mounting hole 12, and each inwall 121 two ends and inner core 31 are separated.So, form the passage/gap (not label) of fore-and-aft direction extension between the outside surface of adjacent two inwalls 121 and inner core 31.In addition, the outer of the part optical fiber 3 of contiguous lens 1 placed in the locating slot 21 of body 2 by 32, thereby reaches optical fiber 3 pre-determined bit.

Optical cement 4 is applied in the mounting hole 12, along passage/Clearance Flow between mounting hole 12 and the inner core 31, and is packed between mounting hole 12 and the inner core 31, thereby guarantees good binding between lens 1 and the optical fiber 3.

See also Fig. 7 with Fig. 9 and combine Fig. 1 to Fig. 6, second embodiment and first embodiment of the utility model joints of optical fibre 100 ' are roughly the same, its difference is that the mounting hole 12 ' of lens 1 ' in the joints of optical fibre 100 ' is square, and it has the inwall 121 ' of four symmetric arrangement.When the inner core 31 of optical fiber 3 is inserted in the mounting hole 12 ', inner core 31 contacts with inwall 121 ' and is positioned, and forms four passage/gaps (not label) of extending along fore-and-aft direction between inner core 31 and the inwall 121 '.Optical cement 4 is applied in the mounting hole 12 ', along passage/Clearance Flow between mounting hole 12 ' and the inner core 31, and is packed between mounting hole 12 ' and the inner core 31, thereby guarantees good binding between lens 1 and the optical fiber 3.

In other embodiments, the mounting hole of lens can be positive triangle, other various forms of regular polygon structures such as pentagon.The mounting hole of lens is the regular polygon structure, can guarantee that the geometric center of lens accurately aims at the geometric center of optical fiber inner core.In addition, also form some passage/gaps between the mounting hole of lens and the optical fiber inner core, flow through in it for optical cement, thereby guarantee lens and optical fiber inner core reliable connection.

In other embodiments, these joints of optical fibre can be used as a light signal coupling assembling and are assembled on the connector of the prior art, form a combined optical and electrical connector.

Claims

1. joints of optical fibre, it comprises lens, optical fiber and optical cement, the outer quilt that optical fiber comprises inner core and is coated on the inner core outside, it is characterized in that: the mounting hole that extends before and after described lens are provided with and become the regular polygon structure, the inner core of optical fiber front end is inserted in the mounting hole of lens and with the inwall of mounting hole and contacts, and form the passage that fore-and-aft direction extends between the inwall of two adjacent mounting holes and the inner core, optical cement is applied in the mounting hole of lens this optical fiber and lens is fixed together.

2. the joints of optical fibre as claimed in claim 1 is characterized in that: described inner core is a circular configuration, and inner core only contact with each inwall middle part of mounting hole, and the two ends of this inwall be separated.

3. the joints of optical fibre as claimed in claim 1 is characterized in that: the mounting hole of described lens is a regular hexagon.

4. the joints of optical fibre as claimed in claim 1 is characterized in that: the mounting hole of described lens is a square.

5. the joints of optical fibre as claimed in claim 1 is characterized in that: the rear end of described mounting hole is anterior big than it.

6. joints of optical fibre, it comprises the body along horizontal expansion, some lens, some optical fiber and optical cement, described some lens embed body and along transversely spaced from one another, the outer quilt that each optical fiber comprises inner core and is coated on the inner core outside, it is characterized in that: the mounting hole that extends before and after each lens is provided with and become the regular polygon structure, the inner core of optical fiber front end is inserted in the mounting hole of lens, and optical cement is applied to this optical fiber and lens are fixed together.

7. the joints of optical fibre as claimed in claim 6 is characterized in that: described optical fiber inner core is for circular, and the mounting hole of described lens comprises some inwalls, and inner core all contacts with each inwall.

8. the joints of optical fibre as claimed in claim 6 is characterized in that: the mounting hole of described lens is square or regular hexagon.

9. the joints of optical fibre as claimed in claim 6 is characterized in that: the rear portion of described body is provided with locating slot, and the part of the contiguous lens of optical fiber is placed in the locating slot outward.

10. the joints of optical fibre as claimed in claim 6 is characterized in that: be provided with depressed part in the middle of the described body portion, the front end of lens extends in the depressed part.