CN109683248A - Optical fiber connector and its assemble method - Google Patents
Optical fiber connector and its assemble method Download PDFInfo
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- CN109683248A CN109683248A CN201910068323.7A CN201910068323A CN109683248A CN 109683248 A CN109683248 A CN 109683248A CN 201910068323 A CN201910068323 A CN 201910068323A CN 109683248 A CN109683248 A CN 109683248A
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- optical fiber
- rear body
- ferrule
- rear end
- fiber connector
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Abstract
本发明公开一种光纤连接器，包括：内壳体，具有一个前体；插芯组件，容纳在所述内壳体中，包括插芯和预先保持在所述插芯中的一段预设光纤；弹簧，位于所述插芯的后方，用于向所述插芯施加预定的轴向力和将所述插芯预先推压在所述内壳体中，所述插芯组件和所述弹簧被预先保持在所述前体中，所述预设光纤用于与光缆的引入光纤熔接在一起。本发明减少了光纤连接器的零部件的数量，简化了光纤连接器的结构，便于在现场快速组装光纤连接器。
The invention discloses an optical fiber connector, comprising: an inner shell having a precursor; a ferrule assembly, accommodated in the inner shell, comprising a ferrule and a pre-set optical fiber held in the ferrule in advance ; a spring, located behind the ferrule, for applying a predetermined axial force to the ferrule and pre-pressing the ferrule in the inner housing, the ferrule assembly and the spring Pre-maintained in the precursor, the pre-fabricated fibers are intended to be spliced together with the drop fibers of the cable. The invention reduces the number of components of the optical fiber connector, simplifies the structure of the optical fiber connector, and facilitates the rapid assembly of the optical fiber connector on site.
Description
The application is the Chinese patent application (number of patent application: 201410502692.X) that September in 2014 is submitted on the 26th
Divisional application.
Technical field
The present invention relates to a kind of optical fiber connector and the on-site assembly methods of the optical fiber connector.
Background technique
In the prior art, the welded-connecting type optical fiber connector one being connected to by way of fused fiber splice on one end of optical cable
As include inner housing, outer housing, ferrule assembly, spring, Spring holder, optical cable fixation kit, fusion point protection sleeve pipe, stress
Buffer boots and dust cap.Aforementioned ferrule assembly includes lock pin and one section of default optical fiber being maintained in lock pin, this section presets optical fiber
It is connected together for the introducing optical fiber hot melt with optical cable.
In the prior art, at the scene assembling optical fiber connector when, need dust cap, ferrule assembly, spring and bullet first
Spring holder is one by one installed in inner housing；Then the introducing optical fiber of default optical fiber and optical cable hot melt is connected together；Later
By the buffer ferrule of the rear end of fusion point protection sleeve pipe engagement to inner housing and introducing optical fiber, (it is a composition portion of optical cable
Point) on, so that default optical fiber is protected in fusion point protection sleeve pipe with the fusion point for being introduced into optical fiber；Later by the fixed group of optical cable
Part is installed on inner casing, and the Kafra fiber of optical cable is fixed on optical cable fixation kit；Finally stress buffer boots are set with
It is installed in outer housing onto optical cable fixation kit, and by inner housing.
In the prior art, optical cable fixation kit generally comprises the biggish extension of a length and heat-shrink tube/mono-
A pressure welding case.The front end of extension is connected on the rear end of inner housing, and fusion point protection sleeve pipe is contained in the inside of extension.Light
The Kafra fiber of cable is fixed on the rear end of extension by heat-shrink tube/pressure welding case.
It states in optical fiber connector in prior-art frontal, the quantity for the independent components that optical fiber connector includes is larger,
Structure is also extremely complex, is not easy to Fast Installation optical fiber connector at the scene, and on-site assembly optical fiber connector is very time-consuming.
Moreover, conventionally, as needing using the biggish extension of length, this will lead to the total of optical fiber connector
Length is too long, and the length of stress buffer boots is too short, this will lead to the optical cable for being connected to the optical fiber connector by lateral force
Shi Rongyi is impaired, that is, reduces the ability of the anti-side loading of optical cable.
In addition, in the prior art, it is also necessary to be crimped on pressure welding case or stress buffer boots using dedicated crimping tool
On the rear end of extension, the difficulty of on-site assembly optical fiber connector is increased.
Summary of the invention
The purpose of the present invention aims to solve the problem that at least one aspect of the above-mentioned problems in the prior art and defect.
It is an object of the present invention to provide a kind of optical fiber connectors convenient for quickly assembling at the scene.
According to an aspect of the present invention, a kind of optical fiber connector is provided, comprising: outer housing；Inner housing is mounted on described
In outer housing；Ferrule assembly is contained in the inner housing, including lock pin and one section of default light being maintained in the lock pin
It is fine；And spring, it is contained in the inner housing and is located at the rear of the lock pin, for applying scheduled axial direction to the lock pin
Power.The inner housing includes precursor and rear body, and the rear body is assembled on the precursor；The spring is compressed in the rear body
Between the lock pin.
The embodiment of an exemplary according to the present invention, the optical fiber connector further include one and temporarily hold part, institute
It states and temporarily holds part and can be assembled on the precursor, for before rear body is assembled on precursor, by the ferrule assembly
It is maintained in the precursor in advance with the spring；And it is described during body is assembled on the precursor after will be described
Part is temporarily held automatically to fall off from the precursor.
The embodiment of another exemplary according to the present invention, described temporarily hold are formed with a frangible portion on part；And
And the rear body is configured to interfere during rear body is assembled on precursor with part is temporarily held, so that described
Frangible portion rupture, so that the part that temporarily holds automatically falls off from the precursor.
The embodiment of another exemplary according to the present invention, the part that temporarily holds is suitable for after being sleeved on the precursor
On end, the front end of the rear body is suitable for inserting into the rear end of the precursor.
The embodiment of another exemplary according to the present invention is formed with protrusion on the inner wall for temporarily holding part
Portion is temporarily held after part is assembled on the precursor described, and the lug boss is extruded on the rear end of the spring, thus
The ferrule assembly and the spring are provisionally maintained in the precursor；And on the outer wall of the front end of the rear body
It is formed with the positioning recess portion with the lug boss interference engagement, for making the frangible portion rupture for temporarily holding part and for ensuring
Body is inserted into the precursor after described with correct orientation.
The embodiment of another exemplary according to the present invention is formed with ditch on the lug boss for temporarily holding part
Slot；And the protrusion with groove cooperation is formed in the positioning recess portion of the rear body, for guiding the rear body
It is inserted into described temporarily hold in part.
The embodiment of another exemplary according to the present invention, described temporarily hold is formed with elastic fastening hook on part, described
Elastic fastening hook is adapted to be snap-fit in the notch formed on the precursor, so that the part that temporarily holds is assembled into the precursor
On.
The embodiment of another exemplary according to the present invention is formed with protrusion on the front end of the rear body, institute
It states protrusion to be adapted to be snap-fit in the opening formed on the precursor, so that the rear body to be assembled on the precursor.
The embodiment of another exemplary according to the present invention, it is described after the rear body is assembled on the precursor
The tubular front end of body covers on the spring afterwards；And the rear end of the spring is compressed on the inner wall of the rear body and is formed
Blocking step surface on.
The embodiment of another exemplary according to the present invention, the default optical fiber are used for and are connected to the optical fiber and connect
The introducing fused fiber splice of the optical cable of device is together.
The embodiment of another exemplary according to the present invention, the default optical fiber and the fusion point quilt for introducing optical fiber
It is contained in a protection sleeve pipe；And the front end of the protection sleeve pipe is joined to the separator tube being coated on the default optical fiber
On, rear end is joined on the separator tube being coated on the introducing optical fiber.
The embodiment of another exemplary according to the present invention, the optical fiber connector further includes a dust cap, described
Dust cap is sleeved on the front end of the lock pin, to protect the default optical fiber in the lock pin.
The embodiment of another exemplary according to the present invention, will it is described after before body is assembled on the precursor, institute
Dust cap, the ferrule assembly and the spring is stated to temporarily hold part by described and be maintained in advance in the precursor.
The embodiment of another exemplary according to the present invention, the optical cable are the optical cable with Kafra fiber, and
The Kafra fiber of the optical cable is fixed on the rear end of rear body of the inner housing by heat-shrink tube；And the pyrocondensation
The front end pyrocondensation of pipe is on the rear end of the rear body, and rear end pyrocondensation is on the oversheath of the optical cable.
The embodiment of another exemplary according to the present invention, the optical cable are the optical cable without Kafra fiber, and
And the optical fiber connector further includes the heat-shrink tube for fixing the optical cable, the front end pyrocondensation of heat-shrink tube body after described
Rear end on, rear end pyrocondensation is on the oversheath of the optical cable.
The embodiment of another exemplary according to the present invention, the optical fiber connector further include a stress buffer boots,
The front end sleeve of the stress buffer boots is on the heat-shrink tube, and rear end cap is on the oversheath of the optical cable.
The embodiment of another exemplary according to the present invention is formed with threaded connection on the rear end of the rear body
Portion, and the thread bush that the Kafra fiber of the optical cable is threadedly attached on the rear end of the rear body is fixed on institute
It states on the rear end of rear body of inner housing；And one section of oversheath of the front end of the optical cable is cut into two halves, and is compressed in
Between the thread bush and the rear end of the rear body.
The embodiment of another exemplary according to the present invention is formed with a tapered squeezing on the inner wall of the thread bush
Face, edge of the tapered squeezing face in face of the end face of the rear end of the rear body；And the oversheath of the optical cable is extruded
Between the edge of the end face of the rear end in the tapered squeezing face and rear body of the thread bush.
The embodiment of another exemplary according to the present invention, the optical fiber connector further include a stress buffer boots,
The front end sleeve of the stress buffer boots is on the thread bush, and rear end cap is on the oversheath of the optical cable.
According to another aspect of the present invention, a kind of method assembling aforementioned optical fiber connector is provided, comprising the following steps:
S100: ferrule assembly and spring are maintained in advance in the precursor；With
S200: body after described is assembled into the precursor so that the spring be compressed in it is described after body and described insert
Between core.
The embodiment of an exemplary according to the present invention, the ferrule assembly and spring are by being assembled on the precursor
One temporarily hold part and be maintained in the precursor in advance.
The embodiment of another exemplary according to the present invention, body is assembled into the process on the precursor after will be described
In, the part that temporarily holds automatically falls off from the precursor.
The embodiment of another exemplary according to the present invention, described temporarily hold are formed with a frangible portion on part；And
And the rear body is configured to interfere during rear body is assembled on precursor with part is temporarily held, so that described
Frangible portion rupture, so that the part that temporarily holds automatically falls off from the precursor.
The embodiment of another exemplary according to the present invention, the part that temporarily holds is suitable for after being sleeved on the precursor
On end, the front end of the rear body is suitable for inserting into the rear end of the precursor.
The embodiment of another exemplary according to the present invention is formed with protrusion on the inner wall for temporarily holding part
Portion is temporarily held after part is assembled on the precursor described, and the lug boss is extruded on the rear end of the spring, thus
The ferrule assembly and the spring are provisionally maintained in the precursor；And on the outer wall of the front end of the rear body
It is formed with the positioning recess portion with the lug boss interference engagement, for making the frangible portion rupture for temporarily holding part and for ensuring
Body is inserted into the precursor after described with correct orientation.
The embodiment of another exemplary according to the present invention is formed with ditch on the lug boss for temporarily holding part
Slot；And the protrusion with groove cooperation is formed in the positioning recess portion of the rear body, for guiding the rear body
It is inserted into described temporarily hold in part.
The embodiment of another exemplary according to the present invention, described temporarily hold is formed with elastic fastening hook on part, described
Elastic fastening hook is adapted to be snap-fit in the notch formed on the precursor, so that the part that temporarily holds is assembled into the precursor
On.
The embodiment of another exemplary according to the present invention is formed with protrusion on the front end of the rear body, institute
It states protrusion to be adapted to be snap-fit in the opening formed on the precursor, so that the rear body to be assembled on the precursor.
The embodiment of another exemplary according to the present invention, it is described after the rear body is assembled on the precursor
The tubular front end of body covers on the spring afterwards；And the rear end of the spring is compressed on the inner wall of the rear body and is formed
Blocking step surface on.
The embodiment of another exemplary according to the present invention, the optical fiber connector further includes a dust cap, described
Dust cap is sleeved on the front end of the lock pin, to protect the default optical fiber in the lock pin.
The embodiment of another exemplary according to the present invention, will it is described after before body is assembled on the precursor, institute
Dust cap, the ferrule assembly and the spring is stated to temporarily hold part by described and be maintained in advance in the precursor.
The embodiment of another exemplary according to the present invention, preceding method are further comprised the steps of: by ferrule assembly and bullet
After spring is maintained in advance in the precursor and will it is described after before body is assembled into the precursor, by the introducing of the optical cable
Optical fiber is together with the default fused fiber splice.
The embodiment of another exemplary according to the present invention, preceding method further comprise the steps of: the body after will be described and assemble
Before into the precursor, the both ends of protection sleeve pipe are engaged respectively within the cushion collar for introducing optical fiber and the default optical fiber
Guan Shang, so that the fusion point for being introduced into optical fiber and the default optical fiber is accommodated in the protection sleeve pipe.
The embodiment of another exemplary according to the present invention, the optical cable are the optical cable with Kafra fiber, and
The Kafra fiber of the optical cable is fixed on the rear end of rear body of the inner housing by heat-shrink tube；And the pyrocondensation
The front end pyrocondensation of pipe is on the rear end of the rear body, and rear end pyrocondensation is on the oversheath of the optical cable.
The embodiment of another exemplary according to the present invention, the optical cable are the optical cable without Kafra fiber, and
And the optical fiber connector further includes the heat-shrink tube for fixing the optical cable, the front end pyrocondensation of heat-shrink tube body after described
Rear end on, rear end pyrocondensation is on the oversheath of the optical cable.
The embodiment of another exemplary according to the present invention, preceding method, which further comprises the steps of:, is set with stress buffer boots
It is installed in the outer housing on the oversheath of the heat-shrink tube and the optical cable, and by the inner housing.
The embodiment of another exemplary according to the present invention is formed with threaded connection on the rear end of the rear body
Portion, and the thread bush that the Kafra fiber of the optical cable is threadedly attached on the rear end of the rear body is fixed on institute
It states on the rear end of rear body of inner housing；And one section of oversheath of the front end of the optical cable is cut into two halves, and is compressed in
Between the thread bush and the rear end of the rear body.
The embodiment of another exemplary according to the present invention is formed with a tapered squeezing on the inner wall of the thread bush
Face, edge of the tapered squeezing face in face of the end face of the rear end of the rear body；And the oversheath of the optical cable is extruded
Between the edge of the end face of the rear end in the tapered squeezing face and rear body of the thread bush.
The embodiment of another exemplary according to the present invention, preceding method, which further comprises the steps of:, is set with stress buffer boots
It is installed in the outer housing on the oversheath of the thread bush and the optical cable, and by the inner housing.
In the optical fiber connector of each embodiment of the invention, inner housing is divided into two parts of precursor and rear body, after
Body can be used as the retainer of compressed spring and the extension of the Kafra fiber for fixing optical cable, therefore, the present invention and existing
There is technology to compare, reduce the quantity of the components of optical fiber connector, simplify the structure of optical fiber connector, convenient for fast at the scene
Fast assembling optical fiber connector.
In addition, in the optical fiber connector of each embodiment of the invention, due to eliminating extension in the prior art,
Therefore, the total length of optical fiber connector of the invention is smaller, and the length of stress buffer boots is larger, improves and is connected to optical fiber
The ability of the anti-side loading of the optical cable of connector.
In addition, at the scene when assembling optical fiber connector, not needed in the optical fiber connector of each embodiment of the invention
Using any specific purpose tool, the difficulty of on-site assembly optical fiber connector is reduced.
By the description made for the present invention of below with reference to attached drawing, other objects and advantages of the present invention will be aobvious and easy
See, and can help that complete understanding of the invention will be obtained.
Detailed description of the invention
Fig. 1 shows the decomposition diagram of the optical fiber connector of the embodiment of the first exemplary according to the present invention, China and foreign countries
Shell is not shown；
Fig. 2 shows that temporarily holding part using one is pre-assembled to inner casing for dust cap, ferrule assembly and the spring in Fig. 1
The schematic diagram of a prepackage body formed in the precursor of body；
Fig. 3 shows the cross-sectional view of the prepackage body of Fig. 2；
Fig. 4 shows the enlarged diagram for temporarily holding part in Fig. 1；
Fig. 5 shows the enlarged diagram of the rear body of the inner housing in Fig. 1；
Fig. 6 is shown in be formed after prepackage body shown in Fig. 2, by the introducing optical fiber thermal welding of default optical fiber and optical cable one
The schematic diagram risen；
Fig. 7 is shown in default optical fiber and introducing optical fiber heats after being connected together, and the both ends of protection sleeve pipe are engaged respectively
To default optical fiber and introduce the schematic diagram on the buffer ferrule on optical fiber；
Fig. 8 shows the rear end that rear body is placed in the rear body insertion precursor by inner housing and by the Kafra fiber of optical cable
On schematic diagram；
Fig. 9 shows the schematic diagram by heat-shrink tube pyrocondensation on the rear end and optical cable of the rear body of inner housing；
Figure 10, which is shown in, to be attached to stress buffer boots set on heat-shrink tube and optical cable and inner housing is installed to it in outer housing
It is formed by the schematic diagram of complete optical fiber connector afterwards；
Figure 11 shows the cross-sectional view of optical fiber connector shown in Fig. 10；
Figure 12 shows the cross-sectional view of the optical fiber connector of the embodiment of the second exemplary according to the present invention, wherein outer housing
It does not show；With
Figure 13 shows the cross-sectional view of optical fiber connector shown in Figure 12, and wherein outer housing and optical cable are not all shown.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.Illustrating
In book, the same or similar drawing reference numeral indicates the same or similar component.Following reference attached drawings are to embodiment of the present invention
Illustrate to be intended to explain present general inventive concept of the invention, and is not construed as to a kind of limitation of the invention.
In addition, in the following detailed description, to elaborate many concrete details to provide to present disclosure convenient for explaining
The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments without these specific details can also be with
It is carried out.In other cases, well known construction and device is diagrammatically embodied to simplify attached drawing.
General technical design according to the present invention, provides a kind of optical fiber connector, comprising: outer housing；Inner housing, peace
In the outer housing；Ferrule assembly is contained in the inner housing, including lock pin and be maintained in the lock pin one section
Default optical fiber；And spring, it is contained in the inner housing and is located at the rear of the lock pin, it is predetermined for applying to the lock pin
Axial force.The inner housing includes precursor and rear body, and the rear body is assembled on the precursor；The spring is compressed in institute
It states between rear body and the lock pin.
First embodiment
Fig. 1 shows the decomposition diagram of the optical fiber connector of the embodiment of the first exemplary according to the present invention, China and foreign countries
Shell 200 is not shown.
As shown in Figure 1, in the embodiment of an example of the present invention, optical fiber connector mainly includes inner housing
100, outer housing 200, ferrule assembly, spring 500, heat-shrink tube 700 and stress buffer boots 800.
Figure 10, which is shown in, to be attached to 800 sets of stress buffer boots on heat-shrink tube 700 and optical cable 10 and is installed to inner housing 100
The schematic diagram of complete optical fiber connector is formed by after in outer housing 200；Figure 11 shows optical fiber connector shown in Fig. 10
Cross-sectional view.
As shown in Fig. 1, Figure 10 and Figure 11, in the illustrated embodiment, ferrule assembly is accommodated in the inner in shell 100, and
Ferrule assembly includes lock pin 300 and one section of default optical fiber 21 being maintained in lock pin 300.In the illustrated embodiment, light is preset
The rear end of fibre 21 is stretched out from the rear end of lock pin 300 320, to be connected together with the introducing optical fiber 11 of optical cable 10 hot melt.
As shown in Fig. 1, Figure 10 and Figure 11, in the embodiment of an example of the present invention, spring 500 is contained in inner casing
Rear in body 100 and positioned at lock pin 300, for applying scheduled axial force to lock pin 300.
Continuing with referring to Fig. 1, Figure 10 and Figure 11, in the embodiment of an example of the present invention, inner housing 100 includes
Precursor 110 and rear body 120, rear body 120 can be assembled on precursor 110.After rear body 120 is assembled on precursor 110, spring
500 compressed after between body 120 and lock pin 300.
As shown in Fig. 1, Figure 10 and Figure 11, in the illustrated embodiment, the optical cable 10 connecting with optical fiber connector has triumphant
Husband tows dimension (reinforcing element) 13, which is fixed on the rear end 122 of rear body 120.
Fig. 2, which is shown, temporarily holds part for 500 pre-assembly of dust cap 900, ferrule assembly and spring in Fig. 1 using one
The schematic diagram of a prepackage body 1000 formed in precursor 110 to inner housing 100；Fig. 3 shows cuing open for the prepackage body 1000 of Fig. 2
View.
As shown in Figure 1, Figure 2 and Figure 3, in the embodiment of an example of the present invention, optical fiber connector can also be wrapped
It includes one and temporarily holds part 400, this temporarily holds part 400 and can be assembled on precursor 110, for being assembled by rear body 120
Before on precursor 110, ferrule assembly and spring 500 are maintained in advance in precursor 110.
In the embodiment of an example of the present invention, this temporarily holds part 400 and is configured to by rear body 120
It automatically falls off from precursor 110 during being assembled on precursor 110.
Fig. 4 shows the enlarged diagram for temporarily holding part 400 in Fig. 1；Fig. 5 shows the rear body of the inner housing 100 in Fig. 1
120 enlarged diagram.
As shown in Figure 4 and Figure 5, in the illustrated embodiment, it temporarily holds and is formed with a frangible portion 440, example on part 400
Such as, the part for being easy to rupture of thinner wall section, cutting part or other forms.Body 120 is configured to before being assembled into rear body 120 afterwards
It during on body 110, is interfered with part 400 is temporarily held, so that frangible portion 440 ruptures, so that temporarily holding part
400 automatically fall off from precursor 110.
As shown in Figures 2 and 3, in the illustrated embodiment, the rear end that part 400 is suitable for being sleeved on precursor 110 is temporarily held
In portion, the front end 121 of rear body 120 is suitable for inserting into the rear end of precursor 110.
As shown in Figures 2 to 5, in the embodiment of an example of the present invention, on the inner wall for temporarily holding part 400
It is formed with lug boss 420, after temporarily holding part 400 and being assembled on precursor 110, after lug boss 420 is extruded in spring 500
On end, so that ferrule assembly and spring 500 are provisionally maintained in precursor 110；And in the front end 121 of rear body 120
The positioning recess portion 125 with 420 interference engagement of lug boss is formed on outer wall, the frangible portion 440 for making to temporarily hold part 400
It ruptures and for ensuring that rear body 120 is inserted into precursor 110 with correct orientation.
In the embodiment of an example of the present invention, as shown in Figures 2 to 5, in the lug boss for temporarily holding part 400
Groove 430 is formed on 420；And the protrusion cooperated with groove 430 is formed in the positioning recess portion 125 of rear body 120
126, it is inserted into and is temporarily held in part 400 for body 120 after guiding.
In the illustrated embodiment, when insertion is temporarily held in part 400 when the front end 121 of rear body 120, part is temporarily held
125 interference engagement of positioning recess portion on lug boss 420 and rear body 120 on 400, gradually expands outwardly and temporarily holds part
400, make to temporarily hold the frangible portion 440 on part 400 and ruptures.
In addition, in the illustrated embodiment, for the ease of the insertion of the front end 121 of rear body 120 is temporarily held part 400
In, inclined guide surface 125a, 126a is respectively formed in the positioning recess portion 125 of rear body 120 and the front end of protrusion 126.
As shown in Figures 1 to 5, it in the embodiment of an example of the present invention, temporarily holds and is formed with bullet on part 400
Property grab 410, which is adapted to be snap-fit in the notch 115 formed on precursor 110, to temporarily hold part 400
It is assembled on precursor 110.
As shown in Figures 1 to 5, in the embodiment of an example of the present invention, on the front end 121 of rear body 120
It is formed with protrusion 124, protrusion 124 is adapted to be snap-fit in the opening 114 formed on precursor 110, to assemble rear body 120
Onto precursor 110.
As shown in Figure 10 and Figure 11, in the illustrated embodiment, after rear body 120 is assembled on precursor 110, rear body
120 121 sets of tubular front end is on spring 500；And the rear end of spring 500 is compressed on the inner wall of rear body 120 and is formed
Blocking step surface 127 on.
In the illustrated embodiment, rear body 120 is exceedingly inserted into precursor 110 in order to prevent, and shape is gone back on rear body 120
Cheng Youyi flange part 123, the flange part 123 are located between the front end 121 and rear end 122 of rear body 120.By rear body
When in 120 insertion precursors 110, which can be resisted against on the aft bulkhead of precursor 110, to prevent rear body 120 excessively
Ground is inserted into precursor 110.
Fig. 6 is shown in be formed after prepackage body 1000 shown in Fig. 2, by the introducing optical fiber 11 of default optical fiber 21 and optical cable 10
Heat the schematic diagram being connected together；Fig. 7 is shown in default optical fiber 21 and introducing optical fiber 11 heats after being connected together, by protective case
The both ends of pipe 600 are joined respectively to default optical fiber 21 and introduce the schematic diagram on the buffer ferrule 22,12 on optical fiber 11.
As shown in Fig. 6, Fig. 7, Figure 10 and Figure 11, default optical fiber 21 and the fusion point for introducing optical fiber 11 are accommodated in a guarantor
In protecting pipe 600；And the front end of protection sleeve pipe 600 is joined on the separator tube 22 being coated on default optical fiber 21, rear to terminate
It closes to be coated on and introduce on the separator tube 12 on optical fiber 11.In one embodiment of the invention, protection sleeve pipe 600 can be heat
The draw or cold shrink tube.
As shown in Figure 1 to Figure 3, in the illustrated embodiment, optical fiber connector further includes a dust cap 900, this is dust-proof
Cap 900 is sleeved on the front end 310 of lock pin 300, to protect the default optical fiber 21 in lock pin 300.
In the embodiment of an example of the present invention, as shown in Figures 2 and 3, rear body 120 is being assembled into precursor
Before on 110, dust cap 900, ferrule assembly and spring 500 are maintained in precursor 110 in advance by temporarily holding part 400.
Fig. 8, which is shown, to be inserted into the rear body 120 of inner housing 100 in precursor 110 and places the Kafra fiber of optical cable 10 13
Schematic diagram on the rear end 122 of rear body 120；Fig. 9 is shown 700 pyrocondensation of heat-shrink tube after the rear body 120 of inner housing 100
Schematic diagram on end 122 and optical cable 10.
As shown in Figure 8, Figure 9, Figure 10 and Figure 11, in the embodiment of an example of the present invention, the Kev of optical cable 10
On the rear end 122 for the rear body 120 that dimension 13 of towing is fixed on inner housing 100 by heat-shrink tube 700.The front end of heat-shrink tube 700
Pyrocondensation is on the rear end 122 of rear body 120, for the Kafra fiber 13 of optical cable 10 to be fixed on to the rear body 120 of inner housing 100
Rear end 122 on.The rear end pyrocondensation of heat-shrink tube 700 is on the oversheath of optical cable 10.
As shown in Figure 10 and Figure 11, in the illustrated embodiment, the front end sleeve of stress buffer boots 800 is mounted in heat-shrink tube 700
On, the rear end cap of stress buffer boots 800 is on the oversheath of optical cable 10.
The optical fiber connection of the embodiment of an exemplary according to the present invention will be described in detail according to Fig. 1 to Figure 11 below
The assembling process of device.
Firstly, as shown in Figures 2 and 3, it is using part 400 is temporarily held that dust cap 900, ferrule assembly and spring 500 is pre-
It is first maintained in the precursor 110 of inner housing 100, to form a prepackage body 1000.It note that the prepackage body 1000 can be in work
Factory completes, and without assembling at the scene, can reduce the workload of on-site assembly optical fiber connector in this way.
Then, as shown in fig. 6, the hot melt of introducing optical fiber 11 of default optical fiber 21 and optical cable 10 is connected together.
Then, optical fiber 11 and default optical fiber 21 are introduced as shown in fig. 7, the both ends of protection sleeve pipe 600 are engaged respectively within
On buffer ferrule 12,22, so that the fusion point for introducing optical fiber 11 and default optical fiber 21 is received and is protected in protection sleeve pipe 600
In.
Then, as shown in figure 8, the rear body 120 of inner housing 100 is assembled into precursor 110, so that spring 500 is compressed
Afterwards between body 120 and lock pin 300, and it is broken and automatically fall off from precursor 110 to make to temporarily hold part 400.
Then, as shown in figure 9, by 700 pyrocondensation of heat-shrink tube on the rear end 122 of rear body 120 and the oversheath of optical cable 10,
On the rear end 122 of rear body 120 to which the Kafra fiber 13 of optical cable 10 to be fixed on to inner housing 100.
Finally, as shown in Figure 10 and Figure 11, stress buffer boots 800 to be sleeved on to the oversheath of heat-shrink tube 700 and optical cable 10
On, and inner housing 100 is installed in outer housing 200, to complete the assembling of entire optical fiber connector.
In the previous embodiment shown in Fig. 1 to Figure 11, the optical cable 10 for being connected to optical fiber connector is to tow with Kev
The optical cable of dimension 13.But the present invention is not limited to the embodiment of diagram, the optical cable for being connected to optical fiber connector may be not have
There is the optical cable of Kafra fiber, for example, 8-shaped optical cable, for this optical cable, optical fiber and the buffer ferrule being coated on optical fiber are not
Can be mobile relative to the oversheath of optical cable, therefore, it is necessary to expose one section of longer buffer ferrule on optical cable.In this way, working as optical fiber
When in use (front end of lock pin will receive pushing), the one section of longer buffer ferrule exposed on optical cable can be easy to connector
Ground bends, and lock pin is slightly moved, so that optical fiber connector will not generate additional insertion loss because of bending
Or optical fiber can be prevented to be broken off in extreme circumstances.
Second embodiment
Figure 12 shows the cross-sectional view of the optical fiber connector of the embodiment of the second exemplary according to the present invention, wherein outer housing
It does not show；The cross-sectional view of optical fiber connector shown in Figure 12 is shown with Figure 13, wherein outer housing and optical cable are not all shown.
The light of first embodiment shown in the optical fiber connector and Fig. 1 to Figure 11 of second embodiment shown in Figure 12 and Figure 13
The main distinction of fiber connector is the fixed structure of the Kafra fiber for fixing optical cable.In addition to this, Figure 12 and Figure 13
Shown in second embodiment optical fiber connector and Fig. 1 to Figure 11 shown in first embodiment optical fiber connector it is essentially identical,
For simplicity, only the difference of first embodiment and second embodiment is illustrated below.
As shown in Figure 12 and Figure 13, in the embodiment of an example of the present invention, in the rear body 120 ' of inner housing
Threaded joints 122a is formed on rear end 122 '.The Kafra fiber 13 of optical cable 10 is threadedly attached to rear body 120 '
Thread bush 700 ' on rear end 122 ' is fixed on the rear end 122 ' of rear body 120 ' of inner housing.The front end of optical cable 10
One section of oversheath 14 is cut into two halves, and is compressed between thread bush 700 ' and the rear end 122 ' of rear body 120 '.
As shown in Figure 12 and Figure 13, in the illustrated embodiment, a taper is formed on the inner wall of thread bush 700 ' to squeeze
The edge 122b of pressure surface 700b, tapered squeezing face 700b in face of the end face of the rear end 122 ' of rear body 120 '；And optical cable 10
Oversheath 14 is compressed in the edge of the end face of the tapered squeezing face 700b of thread bush 700 ' and the rear end 122 ' of rear body 120 '
Between 122b.
In the second embodiment shown in Figure 12 and Figure 13, the rear body 120 ' of inner housing is threadedly coupled in thread bush 700 '
Rear end 122 ' on after, stress buffer boots 800 ' are sleeved on the oversheath of thread bush 700 ' and optical cable 10.
Although in conjunction with attached drawing, the present invention is described, and embodiment disclosed in attached drawing is intended to preferred to the present invention
Embodiment illustrates, and should not be understood as to a kind of limitation of the invention.
Although some embodiments of this present general inventive concept have been shown and have illustrated, those of ordinary skill in the art will be managed
Solution can make a change these embodiments in the case where the principle and spirit without departing substantially from this present general inventive concept, of the invention
Range is limited with claim and their equivalent.
It should be noted that word " comprising " is not excluded for other element or steps, word "a" or "an" is not excluded for multiple.Separately
Outside, the range that any element label of claim should not be construed as limiting the invention.
Claims (20)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068323.7A CN109683248A (en) | 2014-09-26 | 2014-09-26 | Optical fiber connector and its assemble method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068323.7A CN109683248A (en) | 2014-09-26 | 2014-09-26 | Optical fiber connector and its assemble method |
| CN201410502692.XA CN105511020B (en) | 2014-09-26 | 2014-09-26 | Optical fiber connector and method of assembling the same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410502692.XA Division CN105511020B (en) | 2014-09-26 | 2014-09-26 | Optical fiber connector and method of assembling the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109683248A true CN109683248A (en) | 2019-04-26 |
Family
ID=55719125
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410502692.XA Expired - Fee Related CN105511020B (en) | 2014-09-26 | 2014-09-26 | Optical fiber connector and method of assembling the same |
| CN201910068323.7A Pending CN109683248A (en) | 2014-09-26 | 2014-09-26 | Optical fiber connector and its assemble method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410502692.XA Expired - Fee Related CN105511020B (en) | 2014-09-26 | 2014-09-26 | Optical fiber connector and method of assembling the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105511020B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11719893B2 (en) * | 2018-04-06 | 2023-08-08 | Us Conec Ltd. | Flexible push-pull boot and crimp body for fiber optic connector |
| CN110174727A (en) * | 2018-05-30 | 2019-08-27 | 中航光电科技股份有限公司 | A kind of tail portion sheath and the connector using the tail portion sheath |
| CN110174729A (en) * | 2018-05-30 | 2019-08-27 | 中航光电科技股份有限公司 | Tail portion sheath and the connector for using the tail portion sheath |
| CN108761644A (en) * | 2018-07-26 | 2018-11-06 | 南京华脉科技股份有限公司 | A kind of scene welding quick connector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5438754B2 (en) * | 2008-04-25 | 2014-03-12 | スリーエム イノベイティブ プロパティズ カンパニー | LC type optical connector with splice element and capable of field termination |
| KR101038195B1 (en) * | 2010-07-08 | 2011-06-01 | 박찬설 | Fiber Optic Connector and How to Assemble It |
| CN202221486U (en) * | 2011-08-16 | 2012-05-16 | 上海亨通光电科技有限公司 | Quick connecting assembly for two-core optical cable |
| TWI486657B (en) * | 2013-07-10 | 2015-06-01 | Advanced Connetek Inc | Optic fiber connector |
| CN204256210U (en) * | 2014-09-26 | 2015-04-08 | 泰科电子(上海)有限公司 | The joints of optical fibre |
-
2014
- 2014-09-26 CN CN201410502692.XA patent/CN105511020B/en not_active Expired - Fee Related
- 2014-09-26 CN CN201910068323.7A patent/CN109683248A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN105511020A (en) | 2016-04-20 |
| CN105511020B (en) | 2019-03-01 |
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Application publication date: 20190426 |