CN102272646A

CN102272646A - Field modular optical connector

Info

Publication number: CN102272646A
Application number: CN2010800015914A
Authority: CN
Inventors: 申顺爱; 表镇玖
Original assignee: KOREA OPTRON CORP
Current assignee: KOREA OPTRON CORP
Priority date: 2009-09-11
Filing date: 2010-09-13
Publication date: 2011-12-07
Anticipated expiration: 2030-09-13
Also published as: CN102272646B; WO2011031107A3; WO2011031107A2

Abstract

The present invention relates to a field assembling type optical connector, wherein optical fibers may be readily and mutually connected without the loss of light in the field. The field modular optical connector according to the present invention is easy to work with and has a high coupling force due to the connection between the optical fibers, so that stable connection states may be kept even in harsh environments. In addition, it is possible to realize simple operation of the connection provided by the optical fibers on the scene.

Description

The assembled on site optical conenctor

Technical field

Present invention relates in general to a kind of optical conenctor, more specifically, relate to a kind of assembled on site optical conenctor that is used for optical fiber is easily interconnected and does not have optical loss.

Background technology

Usually, for optical cable is interconnected fiber cable network to be installed at the scene, the wire jumper that adopts the finished product form to produce.For producing wire jumper, sleeve pipe (wherein inserting the opposed end of core that has the optical fiber of predetermined length according to parameter) is along optical axis alignment, and carry out epoxy adhesion process and end polishing, thereby make the optical loss minimum, and optical conenctor is attached to each sleeve pipe, thereby the wire jumper that needs is provided.For example, adopt LC, ST, FC and SC optical conenctor.

Yet, because wire jumper is the type (wherein wire jumper has the predetermined length that limits by parameter) of producing with the form of finished product in factory by the fabricator, and because their length is limited, when wire jumper is used for when fiber distribution cabinet, optics terminal box or commissure cabinet are finished connection between optical fiber cable, wherein need to interconnect or disconnect optical delivery equipment and optical fiber cable, perhaps between optical distribution cabinet and optical delivery equipment, finish connection, perhaps finish connection between optical delivery equipment, this wire jumper may have problem.

When making great efforts to overcome these problems, the optical conenctor that is arranged in the opposite end of each wire jumper is modified into the assembled on site type, make described connector easily and simply to assemble at the scene, thus the wire jumper that can easily obtain to have the length that needs at the scene.

Korea S's publication discloses the assembled on site optical conenctor with the element that continues for 2009-0065485 number.

Above-mentioned optical conenctor comprises: make up and to be used for the shell that accurately combines with socket; Sleeve body, it is installed in this shell and has fiber head in first end that is placed on this sleeve body, this fiber head has first optical fiber, first optical fiber is installed in the sleeve pipe and has at first and second ends that are close to cannula tip surface location place, this sleeve body also comprises the mechanical connection device that is installed in the connection device seat that is limited in the sleeve body, and second end that this mechanical connection device is built into fiber head is routed to second optical fiber; Pillar is used for this sleeve body is remained on shell, and this pillar has fiber sheath clamping part, and it is used for the clamping sheath, and when connecting optical fiber, this sheath covers the part of second optical fiber; And sleeve, it can be attached on the part of pillar, and activates the fiber sheath clamping part of pillar when this sleeve is attached on the pillar.

Optical conenctor with said structure can be assembled at the scene.Yet, although the mechanical connection device of this optical conenctor has the structure that is designed for fastening force clamping light core, but the holding force of connection device that is used for clamping light core is so big unlike hope ground, thereby the function that is used for the connection device of clamping light core may not be efficiently.

The example that has been improved to traditional optical conenctor of assembled on site type is disclosed in Korean Patent 10-0507543 number.

Above-mentioned optical conenctor comprises: shell; Firmly be inserted into the plug in the shell; Be inserted in the core arrangement unit in the plug movingly; Lock cell, it is inserted in securely and covers a part of core arrangement unit in the plug simultaneously; Spring, it is inserted in the lock cell and flexibly supports this core arrangement unit; Over cap, the free end of its covering and sealing lock cell; The optical fiber linkage unit; It is inserted in the lock cell and with the core arrangement unit and engages, and the optical fiber that guiding is stretched out from over cap is to the core arrangement unit; And fastening unit, it is assembled into the optical fiber linkage unit or unloads the optical fiber that also clamping is stretched out from over cap from the optical fiber linkage unit, thereby optical fiber is fastened to the optical fiber linkage unit.

In this optical conenctor, the core that reaches the optical fiber of optical fiber linkage unit is inserted into the core arrangement unit and not by extra core guide means guide, thereby is difficult to be inserted in the core patchhole of core arrangement unit with the precision of the needs core with optical fiber.Describe in detail, very difficulty is, is not using under the extra core guiding device, and the core that accurately will have about 125um diameter is inserted in the core patchhole with diameter corresponding with core diameter.Therefore, traditional optical conenctor problem is the core that its core that is very difficult to accurately to be connected the core arrangement unit inserts in the hole.

Summary of the invention

Technical matters

Correspondingly, the problems referred to above that the present invention is devoted to produce in the prior art, and aim to provide the assembled on site optical conenctor, it can easily interconnect two optical fiber with high precision at the scene.

Technical scheme

On the one hand, the invention provides a kind of assembled on site optical conenctor, comprising:

Connector body with chamber; Be inserted in the chamber of described connector body and the contiguous unit that optical fiber is continued mutually, this contiguous unit comprises: the body that continues, and this body that continues comprises: combine with first end of the described body that continues and keep the sleeve pipe of first core of first optical fiber; Be formed on the core patchhole in second end of the described body that continues, insert in the hole at this core and admit second core of second optical fiber; And core print seat, described core print seat is formed in the described body that continues, and makes described core print seat be communicated with described core patchhole, is formed with v-depression in described core print seat, and described v-depression continues first core of described first optical fiber and second core of described second optical fiber mutually; And core securing member, this core securing member sits in the described core print seat and by locking device and locks onto described core print seat, thereby the opposed end that will sit in described first core in the described v-depression and second core remains on and is in the opposed end mutually closely in the state of contact that makes described first core and second core; Grip unit, this grip unit have clamping part and are installed to connector body, make described contiguous unit can be resiliently maintained in described connector body; Shell, this shell combines with described connector body and supports described contiguous unit, makes the described sleeve pipe of described contiguous unit to stretch out forward; And sleeve, this sleeve combines with described grip unit, and is provided for the holding force of the sheath of described second optical fiber of clamping.

Here, described core securing member has the smooth surface corresponding to described v-depression, makes described core securing member can be by described v-depression supported and keep described first core and second core.

And described locking device can comprise a plurality of lock hooks in the opposite side that is formed on described core securing member; With a plurality of lock holes that are formed in the body that continues with described v-depression, make described lock hole to engage with corresponding lock hook.

And, in the inlet end of the described core patchhole of the described body that continues, can be provided with the core guiding piece, this core guiding piece is directed to described core patchhole with described second core.

And, be provided with assembling fixture described continuing between body and the described core securing member, can be inserted into wherein space to limit described second core.

Further, the length of collar side lock hook that is formed on the described lock hook in the described core securing member is longer than the length of the second distolateral lock hook, makes to be used for the space that described second core is received in wherein can be defined as to be in the state that makes described sleeve pipe side lock hook at first be locked into the lock hole that is associated and support described first core.

Technique effect

As mentioned above, be that according to the advantage of assembled on site optical conenctor of the present invention this connector can realize the easy connection of optical fiber, and can provide high holding force for the joint that has connected between the optical fiber, thereby optical conenctor can be realized stablizing between the optical fiber and being connected reliably, even under the environmental baseline of sternness.Another advantage of the present invention is from such fact, and promptly optical conenctor can realize connecting the simple operations of optical fiber at the scene.

Description of drawings

Fig. 1 is the decomposition diagram according to assembled on site optical conenctor of the present invention;

Fig. 2 is the decomposition diagram of example according to the contiguous unit of assembled on site optical conenctor of the present invention;

Fig. 3 is the sectional view of the contiguous unit after the assembling shown in Figure 2;

Figure 4 and 5 are example assembled on site optical conenctor of the present invention sectional views under the state after the assembling.

Embodiment

Can be used to install FTTH (Fiber to the home) network and/or FTTX (optical fiber is to X) network efficiently according to assembled on site optical conenctor of the present invention.Fig. 1-3 expression is according to the embodiment of assembled on site optical conenctor of the present invention.

As shown in the figure, assembled on site optical conenctor 10 of the present invention comprises: the connector body 20 with stepped cavity 21; With mechanical splice unit 40, it is inserted in the chamber 21 of connector body 20 and first optical fiber 100 and second optical fiber 200 is continued mutually, and has body of continuing 30 and core securing member 41.This body 30 that continues is provided with: sleeve pipe 31, its first end with the body 30 that continues combine and keep first core 101 of first optical fiber 100; Core patchhole 32, it is formed in second end of the body 30 that continues and admits second core 201 of second optical fiber 200 therein; With core print seat 34, it is formed in the body 20 that continues, and makes core print seat 34 be communicated with core patchhole 32.This core print seat 34 has v-depression 33, is used to make first core 101 of first optical fiber 100 and second core 201 of second optical fiber 200 to continue mutually.Core securing member 41 sits in the core print seat 34 and by locking device 50 and locks onto core print seat, thereby the opposed end jail that will sit in first core 101 in the v-depression 33 and second core 201 firmly remains on and is in the opposed end mutually closely in the state of contact that makes first core 101 and second core 201.

This optical conenctor also comprises grip unit 60, and it has clamping part 61 and is installed to connector body 20 by locking device 80, makes contiguous unit 40 to be resiliently maintained in connector body.And this optical conenctor comprises shell 71, and it combines with connector body 20 and supports this contiguous unit 40, makes the sleeve pipe 31 of contiguous unit 40 to stretch out forward; And sleeve (butt) 72 combines with clamping part 61 and provide holding force for the sheath that clamps second optical fiber.

To describe said elements hereinafter in detail according to assembled on site optical conenctor of the present invention.

Connector body 20 combines with grip unit 60 by locking device 80, thereby contiguous unit is remained on wherein.Stepped cavity 21 is formed in the connector body 20 in the axial direction, thereby the sleeve pipe 31 of contiguous unit 40 can stretch out forward from this chamber 21.Opening 22 is formed in the outside surface of connector body 20, makes opening 22 be communicated with chamber 21.

First core 101 that contiguous unit 40 has first optical fiber that will keep by sleeve pipe 31 is routed to the function of second core 201 of second optical fiber 200.As illustrated in fig. 1 and 2, core print seat 34 is formed on the outer peripheral face of the body 30 that continues vertically.This core print seat 34 has smooth basal surface, and v-depression 33 is formed in the basal surface of core print seat simultaneously, is used for first core 101 of first optical fiber 100 is routed to second core of second optical fiber 200.

Here, when blocking this groove on the direction axial perpendicular to it, this v-depression 33 has the V-arrangement xsect.Preferably, the width on the top of v-depression is less than the diameter of first core and second core, thereby first core 101 and second core 201 can be arranged on the v-depression 33.

And this body 30 that continues has extension 35 in the position relative with sleeve pipe 31.In this extension 35, form the core patchhole 32 that extends from v-depression 33.Preferably, the diameter of core patchhole 32 is substantially equal to the diameter of first core, thus very close to each other being retained between first core and the core patchhole 32.And the diameter with amplification is forming the inlet end that funnel shaped core guiding piece 32a preferably is limited at the core patchhole 32 that is formed in the extension 35, thereby second core 201 can be easily inserted in this core patchhole.And the diameter of the inlet of the v-depression that is communicated with core patchhole 32 preferably increases on the direction of core patchhole 32, thereby this core can easily be directed to v-depression.

Core securing member 41 adopts locking device 50 to be locked into core print seat 34, thereby makes core securing member 41 keep first core 101 and second core 201 that has connected.The lower surface of core securing member 41 is the smooth surfaces that are parallel to the basal surface of core print seat 34, thereby the core securing member can be exerted pressure to first core 101 and second core 201 that are kept by v-depression 33.Yet, it will be appreciated that the shape of the lower surface of core securing member is not limited to flat surfaces.

Locking device 50 locks onto the body 30 that continues with core securing member 41.This locking device 50 comprises a plurality of lock holes 51 in the opposite side of the v-depression 33 that is formed on the body 30 that continues and is formed on a plurality of lock hooks 52 on the opposite side of core securing member 41 in the position corresponding to lock hole 51.Described lock hook 52 long enoughs, thus they can lock onto the lower limb that is formed on the lock hole 51 in the body 30 that continues reliably.

Here, the length that is formed on the sleeve pipe side lock hook of the lock hook 52 in the core securing member 41 will be grown like the length of the second distolateral lock hook 52, thereby is used for admitting therein the space of second core 201 to be limited at the state that makes sleeve pipe side lock hook 52 at first be locked into the lock hole that is associated and support first core 101 that is in.

And, anchor clamps protrusion insertion hole 36 (referring to Fig. 4) is limited in the connector body 20 in a plurality of positions corresponding to core patchhole 32, make when contiguous unit 40 combines with connector body 20, contiguous unit 40 can rise, and can limit a space by the contiguous unit that rises in connector body 20.Therefore, when lock hook engaged described lock hole, second core can move along v-depression 33 owing to this space, and the optical fiber that is maintained at simultaneously in the sleeve pipe 31 can be retained in the maintained state.

This anchor clamps protrusion insertion hole 36 is admitted the anchor clamps projection 38a of assembling fixture 38 therein.When second core 201 was the core that is inserted, this anchor clamps projection 38a stoped the lock hole 51 of contiguous core patchhole 32 to combine with the lock hook 52 that is associated.

Grip unit 60 combines with connector body 20 by locking device 80, and is elastically biased toward the contiguous unit 40 with sleeve pipe 31 on the direction that sleeve pipe 31 stretches out.This grip unit 60 comprises: spring retainer 62, and it is assemblied on the extension 35 and with spring and keeps being assemblied on the extension 35; With clamping part 61, it extends back and is spaced from each other by predetermined interval from spring retainer 62.Be used to keep the maintenance projection 63 of optical fiber to be formed on corresponding clamping part 61 in relative position, thereby keep projection to face mutually.The shape of the end of clamping part 61 is configured as and is used to form the semicircular end that can keep optical fiber jacket.

Locking device 80 locks onto connector body 20 with grip unit 60, and comprises: locking seam 81, and it is formed on the rear end of connector body 20; With lock rib 82, its be formed on grip unit 60 spring maintaining part 62 outer surface around, and engage with corresponding locking seam 81.

Operation according to above-mentioned assembled on site optical conenctor of the present invention hereinafter will be described.

Being used for optical fiber of the present invention is the cable cover(ing) that comprises oversheath coating portion (for example cushioning coating portion), core (for example nude enamelled core that covers) and reinforcement.Preferably, reinforcement comprises aramid, Kevlar or polyester yarn or the line between the outside surface that is arranged on fiber sheath and coating portion.

Thereby optical fiber can adopt assembled on site connector according to the present invention to connect at the scene, second optical fiber is inserted in the sleeve, and after this, the part of the cable cover(ing) of second optical fiber is cut, peel off the coating portion of optical fiber like this, stay second core (naked fine part) 201 simultaneously.Subsequently, the end of second core 201 is cut, thus the end of second core 201 corresponding to the end of first core 101 of first optical fiber, this first optical fiber is installed in advance.For example, when removing the sheath of about 50mm, stay second core 201 of the strip off of about 25mm.

For example, the fiber cutter (not shown) of commercial purchase, for example Ilshintech MAX CI-01 or the Ilshintech MAX CI-08 that is produced by Korea S Ilshin Tech Co.Ltd. can be used to prepare smooth or angled cutting tip.Because second core 201 of cutting can be connected to the end of another core, the end that there is no need to polish fiber by contiguous unit optics.Preferably, sleeve 72 makes up and is used for sliding on second optical fiber 200, thereby sleeve 72 can be reused in ensuing processing.

After the coating portion of optical fiber removed as mentioned above like that, second core 201 of strip off adopted alcohol and gauze cleaning.After this, this optical fiber is inserted in the core patchhole 32 that is formed in the extension 35, shown in Figure 4 and 5 by grip unit 60.In above-mentioned state, because assembling fixture, the lock hole 51 that has only the lock hook 52 of some positions that are positioned at contiguous sleeve pipe 31 and be associated locks mutually, thereby can be defined for second core 201 that permission stretches out from core patchhole 32 between body 30 and the core securing member 41 along space that v-depression 33 moves continuing.

Although second core is inserted into as mentioned above, need detection fiber whether crooked.Whether first core 101 of definite first optical fiber 100 of this requirement and second core 201 of second optical fiber 200 form mutually and closely contact.

When definite first core and second core have formed tight mutually the contact, assembling fixture 38 removes from the connector body 20 and the body 30 that continues, and after this, core securing member 41 further is pushed downwards, thereby fully lock hook 51 is locked onto in the lock hole 52, thereby finish the connection of optical fiber.

After optical fiber connects fully, pull back optical fiber to realize its linearity, after this, with sleeve 72 and grip unit 60 connector body 20 with tighten together before shell 71 combines.

As mentioned above, can in the short time, easily be assembled at the scene according to assembled on site connector of the present invention, thereby this connector can widely and be preferably used in the diverse network device.

Although embodiments of the present invention disclose for illustrative purposes, it will be appreciated by those skilled in the art that under the situation that does not break away from disclosed the spirit and scope of the present invention in the claims, various distortion, interpolation and minimizing are possible.

Claims

1. assembled on site optical conenctor comprises:

Connector body with chamber;

Be inserted in the chamber of described connector body and the contiguous unit that optical fiber is continued mutually, this contiguous unit comprises:

The body that continues, this body that continues comprises: combine with first end of the described body that continues and keep the sleeve pipe of first core of first optical fiber; Be formed on the core patchhole in second end of the described body that continues, insert in the hole at this core and admit second core of second optical fiber; And core print seat, described core print seat is formed in the described body that continues, and makes described core print seat be communicated with described core patchhole, is formed with v-depression in described core print seat, and described v-depression continues first core of described first optical fiber and second core of described second optical fiber mutually; With

The core securing member, this core securing member sits in the described core print seat and by locking device and locks onto described core print seat, thereby the opposed end that will sit in described first core in the described v-depression and second core remains on and is in the opposed end mutually closely in the state of contact that makes described first core and second core;

Grip unit, this grip unit have clamping part and are installed to connector body, make described contiguous unit can be resiliently maintained in described connector body;

Shell, this shell combines with described connector body and supports described contiguous unit, makes the described sleeve pipe of described contiguous unit to stretch out forward; And

Sleeve, this sleeve combines with described grip unit, and is provided for the holding force of the sheath of described second optical fiber of clamping.

2. assembled on site optical conenctor according to claim 1, wherein, described core securing member has the smooth surface corresponding to described v-depression, makes described core securing member can be by described v-depression supported and keep described first core and second core.

3. assembled on site optical conenctor according to claim 2, wherein, described locking device comprises: be formed on a plurality of lock hooks in the opposite side of described core securing member; With a plurality of lock holes that are formed in the body that continues with described v-depression, make described lock hole to engage with corresponding lock hook.

4. assembled on site optical conenctor according to claim 1 wherein, is provided with the core guiding piece in the inlet end of the described core patchhole of the described body that continues, this core guiding piece is directed to described core patchhole with described second core.

5. assembled on site optical conenctor according to claim 3 wherein, is provided with assembling fixture described continuing between body and the described core securing member, can be inserted into wherein space to limit described second core.

6. assembled on site optical conenctor according to claim 3, wherein, the length of collar side lock hook that is formed on the described lock hook in the described core securing member is longer than the length of the second distolateral lock hook, makes to be used for the space that described second core is received in wherein can be defined as to be in the state that makes described sleeve pipe side lock hook at first be locked into the lock hole that is associated and support described first core.