CN103424812A

CN103424812A - Optical fiber connector

Info

Publication number: CN103424812A
Application number: CN2012101515909A
Authority: CN
Inventors: 林奕村
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2012-05-16
Filing date: 2012-05-16
Publication date: 2013-12-04

Abstract

The invention relates to an optical fiber connector which comprises a photoelectric conversion portion, an optical transceiver module, an optical fiber fixing portion, two optical fibers and a dust-proof portion. The photoelectric conversion portion comprises a substrate, a first coupling lens, a second coupling lend and a reflection mirror. The substrate comprises a first butt-joint face and a first ejection face, wherein the first butt-joint face is provided with a notch penetrating through the first ejection face, and the first coupling lens and the second coupling lens are fixed to the inside of the notch. The reflection mirror is embedded in the substrate. The optical transceiver module comprises a light-emitting module and a light-receiving module. The optical fiber fixing portion comprises a second butt-joint face. The two optical fibers penetrate through the second butt-joint face. Light rays emitted by the light-emitting module enter the first coupling lens after being reflected by a reflection face and then enter the corresponding optical fibers. The light rays emitted from the optical fibers are reflected to the inside of the light-receiving module by the reflection mirror after entering the second coupling lens. The dust-proof portion is fixed to the first ejection face so as to form a sealed containing space with the second butt-joint face and the notch in an enclosing mode, so that the first coupling lens and the second coupling lens are both held in the containing space.

Description

The joints of optical fibre

Technical field

The present invention relates to USB (universal serial bus) (Universal Serial Bus, USB) field, relate in particular to a kind of joints of optical fibre.

Background technology

At present, utilize the optical signal transmission data to be applied to gradually the USB field of personal computer, and concrete form is presented as that two joints of optical fibre are used in conjunction with.The light signal that light emitting module in the joints of optical fibre is launched must pass through coupled lens successively, optical fiber could arrive another joints of optical fibre to carry out the transmission of signal.One section space must be arranged between coupled lens and optical fiber, to meet the optical imagery law of this coupled lens, make the light penetrated from optical fiber to be received by this coupled lens as much as possible.The convenience of the present joints of optical fibre in order to process; be all to offer a recess that runs through end face and interface on photoelectric conversion part, but so just cause coupled lens exposed in air, airborne dust; particulate or spot can be attached on coupled lens, affect the transmission quality of light signal.

Summary of the invention

In view of this, be necessary to provide a kind of joints of optical fibre that prevent optical pollution.

A kind of joints of optical fibre, it comprises a photoelectric conversion part, an optical transceiver module, an optical fiber fixed part, at least two optical fiber and a dustproof section.This photoelectric conversion part comprises a pedestal of being made by light transmissive material, first coupled lens, second coupled lens and a catoptron, and this pedestal comprises first interface and first end face be connected with this first interface.Offer a recess that runs through this first end face on this first interface.This recess comprises a stationary plane parallel with this first interface.This first coupled lens and this second coupled lens are fixed on this stationary plane.This catoptron is embedded in this pedestal.This optical transceiver module comprises a light emitting module and the receipts optical module be fixed on this pedestal.This optical fiber fixed part comprises second interface supported with this first interface.These at least two optical fiber are contained in this optical fiber fixed part, and run through this second interface.The light of this light emitting module emission enters this first coupled lens after being reflected by this reflecting surface, then injects corresponding optical fiber.From the light of this optical fiber outgoing corresponding with this receipts optical module enters this second coupled lens, by this mirror reflects, to this, received in optical module.Should dustproof section be fixed on this first end face, with this second interface, this recess, jointly to surround the accommodation space of a sealing, make this first coupled lens and this second coupled lens all be housed in this accommodation space.

Compared with prior art; the joints of optical fibre of the present invention; by the section of should preventing dust is set on this photoelectric conversion part; with this second interface, this recess, jointly to surround the accommodation space of a sealing; make this first coupled lens and this second coupled lens all be housed in this accommodation space, avoid being polluted by extraneous dust, particulate or spot.

The accompanying drawing explanation

Fig. 1 is the structural representation of the joints of optical fibre of better embodiment of the present invention.

Fig. 2 is the decomposing schematic representation of the joints of optical fibre of Fig. 1.

Fig. 3 is the schematic diagram of another angle of photoelectric conversion part of the joints of optical fibre of Fig. 1.

Fig. 4 is the cut-open views of the joints of optical fibre of Fig. 1 along the IV-IV direction.

Fig. 5 is the decomposing schematic representation of another angle of the joints of optical fibre of Fig. 1.

Fig. 6 is the cut-open views of the joints of optical fibre of Fig. 1 along the VI-VI direction.

The main element symbol description

The joints of optical fibre	100
		Photoelectric conversion part	10
Pedestal	101
		The first interface	11
Recess	110
		Stationary plane	111
The first end face	12
		Bottom surface	13
The first coupled lens	241
		The second coupled lens	242
Catoptron	243
		Reference column	244
Optical transceiver module	20
		Light emitting module	22
Receive optical module	23
		The optical fiber fixed part	30
The second interface	31
		Locating slot	311
The 3rd coupled lens	312
		The 4th coupled lens	313
Side	32
		The second end face	33
Optical fiber	40
		Dustproof section	50
Accommodation space	501
		Upper surface	51
Lower surface	52
		Joint face	53
Inclined-plane	54

Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.

Embodiment

Referring to Fig. 1-3, is a kind of joints of optical fibre 100 that embodiment of the present invention provides, and it comprises a photoelectric conversion part 10, optical transceiver module 20, optical fiber fixed part 30, two optical fiber 40 and dustproof sections 50.

Shown in Fig. 4, this photoelectric conversion part 10 comprises a pedestal of being made by light transmissive material 101, one the first coupled lens 241, one the second coupled lens 242, catoptron 243 and two reference columns 244.This pedestal 101 comprises first interface 11, the first end face 12 and a bottom surface 13.This bottom surface 13 and the opposing setting of this first end face 12.This first interface 11 connects this first end face 12 and this bottom surface 13.Offer a recess 110 that runs through this first end face 12 on this first interface 11.This recess 110 runs through this first end face 12.This recess 110 has a stationary plane parallel with this first interface 11 111.This first coupled lens 241 and this second coupled lens 242 are fixed on this stationary plane 111.This catoptron 243 is embedded in this pedestal 101.These two reference columns 244 are fixed on this first interface 11, and are positioned at the relative both sides of this recess 110.Certainly, in other embodiments, these two reference columns 244 also can be arranged on the same side of this recess 110.

This optical transceiver module 20 is arranged on this bottom surface 13, and comprises a light emitting module 22 and a receipts optical module 23.This light emitting module 22 is for emission of light.The light that this light emitting module 22 is launched is injected in this pedestal 101, by this catoptron 243, is reflexed to this first coupled lens 241.This receipts optical module 23 is for receiving light.After extraneous light is injected this second coupled lens 242, by this catoptron 243, reflexed to this receipts optical module 23.

Shown in Fig. 5 and Fig. 6, this optical fiber fixed part 30 is rectangular-shaped structure, and it comprises side 32 and second end face 33 that is connected this second interface 31 and this side 32 of second interface 31, one and these the second interface 31 opposing settings.This second interface 31 is oppositely arranged with this first interface 11.Offer two locating slots 311 on this second interface 31.These two locating slots 311 are corresponding with these two reference columns 244 respectively, can be respectively and corresponding optical fiber 40 contraposition accurately to guarantee this first coupled lens 241 or the second coupled lens 242, and to improve the efficiency of signal transmission.The 3rd coupled lens 312 and the 4th coupled lens 313 also are set on this second interface 31, the 3rd coupled lens 312 and the 4th coupled lens 313 are between these two locating slots 311, and corresponding with this first coupled lens 241 and this second coupled lens 242 respectively.These two optical fiber 40 are all in accommodating this optical fiber fixed part 30, and the setting of aliging with the 3rd coupled lens 312 and the 4th coupled lens 313 respectively.These two optical fiber 40 run through this side 32.The 3rd coupled lens 312 is assembled for the light that this first coupled lens 241 is penetrated, and the light that the 4th coupled lens 313 penetrates for the optical fiber 40 by corresponding is assembled.

Shown in Fig. 2 and Fig. 4, should dustproof section 50 be fixed on this first end face 12, with this second interface 31, this recess 110, jointly to surround the accommodation space 501 of a sealing, make the end face of this first coupled lens 241, this second coupled lens 242 and these two optical fiber 40 all be housed in this accommodation space 501.Should dustproof section 50 be a bar shaped platy structure, it comprises a upper surface 51, lower surface 52, joint face 53 and an inclined-plane 54.This lower surface 52 is oppositely arranged with this upper surface 51.This joint face 53 and this inclined-plane 54 are connected between this upper surface 51 and this lower surface 52.And this joint face 53 is connected with this upper surface 51, this inclined-plane 54 is connected with this lower surface 52.This lower surface 52 is fixed on this first end face 12.On the direction of transfer of the light from these two optical fiber 40 outgoing, the width of this upper surface 51 is greater than the width of this lower surface 52, and making this inclined-plane 54 and the angle of this lower surface 52 is obtuse angle.When these two reference columns 244 are plugged in respectively corresponding locating slot 311 when interior, this first end face 12 is positioned on same level with this second end face 33, and this inclined-plane 54 supports with this second end face 33, make in the process of these joints of optical fibre 100 designs, the deviser can be by changing 54De pitch angle, this inclined-plane, to control the distance between this first coupled lens 241 or the second coupled lens 242 and corresponding optical fiber 40.On the direction of transfer of the light perpendicular to these two optical fiber 40 outgoing, the length of this upper surface 51 is more than or equal to the length of this lower surface 52.

In other embodiments, this joint face 53 also can save, and this inclined-plane 54 directly is connected with this upper surface 51.

In other embodiments, this optical transceiver module 20 also can be arranged on this first end face 12.

In the present embodiment, this dustproof section 50 is connected on this first end face 12 by gluing, in other embodiments, this dustproof section 50 also can with this photoelectric conversion part 10 structure that is formed in one.

In other embodiments, the quantity of this reference column 244 and this locating slot 311 is not limited to present embodiment.

In other embodiments, the quantity of this optical fiber 40 is not limited to present embodiment, such as this first coupled lens 241 or the corresponding multifiber 40 of the second coupled lens 242 difference.

In other embodiments, the 3rd coupled lens 312 and the 4th coupled lens 313 also can save.

Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change and distortion all should belong to the protection domain of the claims in the present invention.

Claims

1. A fiber optic connector, which includes a photoelectric conversion unit, an optical transceiver module, an optical fiber fixing unit and at least two optical fibers; the photoelectric conversion unit includes a base, a first coupling lens, and a second coupling lens and a reflector, the base includes a first butt surface and a first top surface connected to the first butt surface; a notch through the first top surface is opened on the first butt surface; the notch It includes a fixed surface parallel to the first docking surface; the first coupling lens and the second coupling lens are fixed on the fixed surface; the reflector is embedded in the base; the optical transceiver module includes A light-emitting module and a light-receiving module on the base; the fiber fixing part includes a second butt joint surface against the first butt joint surface; the at least two optical fibers are accommodated in the fiber fixation part and pass through the second butt surface; the light emitted by the light-emitting module is reflected by the reflective surface and then enters the first coupling lens, and then enters the corresponding optical fiber; after the light emitted from the optical fiber corresponding to the light-receiving module enters the second coupling lens, It is reflected by the reflector into the light-receiving module; it is characterized in that the optical fiber connector also includes a dust-proof part, and the dust-proof part is fixed on the first top surface to be connected with the second butt surface, the concave The openings together form a closed accommodating space, so that the first coupling lens and the second coupling lens are both accommodated in the accommodating space.

2. The fiber optic connector according to claim 1, wherein the fiber fixing portion includes a second top surface connected to the second mating surface; the dustproof portion includes an upper surface, a lower surface and a Inclined surface; the lower surface is opposite to the upper surface; the inclined surface is connected to the upper surface and the lower surface; the lower surface is fixed on the first top surface; in the transmission direction of the light emitted by the at least two optical fibers, The width of the upper surface is greater than the width of the lower surface, so that the angle between the inclined surface and the lower surface is an obtuse angle, and the inclined surface is opposed to the second top surface; in the transmission direction perpendicular to the light emitted by the at least two optical fibers On, the length of the upper surface is greater than or equal to the length of the lower surface.

3. The optical fiber connector according to claim 2, wherein the dust-proof portion further comprises a connection surface connected to the upper surface and the inclined surface.

4. The optical fiber connector according to claim 2, wherein at least two positioning posts are provided on the first mating surface, at least two positioning grooves are provided on the second mating surface, and the at least two positioning grooves are respectively Corresponding to the at least two positioning columns.

5. The optical fiber connector according to claim 4, characterized in that, a third coupling lens and a fourth coupling lens are arranged on the second mating surface, and the third coupling lens and the fourth coupling lens are respectively connected with The first coupling lens corresponds to the second coupling lens, and the at least two optical fibers are respectively aligned with the third coupling lens and the fourth coupling lens, and the third coupling lens is used to output the first coupling lens The light is converged, and the fourth coupling lens is used to converge the light emitted from the corresponding optical fiber to the second coupling lens.

6. The optical fiber connector according to claim 5, wherein the third coupling lens and the fourth coupling lens are located between the at least two positioning grooves.

7 . The optical fiber connector according to claim 1 , wherein the dustproof part and the photoelectric conversion part are integrally formed.

8. The optical fiber connector according to claim 1, wherein the base further comprises a bottom surface, the bottom surface is opposite to the first top surface, and the light emitting module and the light receiving module are fixed on the bottom surface.

9 . The optical fiber connector according to claim 1 , wherein the optical fiber fixing portion further comprises a side surface opposite to the second mating surface, and the at least two optical fibers pass through the side surface.