CN109407218A - Receptacle ferrule and optical fiber light connects system - Google Patents
Receptacle ferrule and optical fiber light connects system Download PDFInfo
- Publication number
- CN109407218A CN109407218A CN201710694150.0A CN201710694150A CN109407218A CN 109407218 A CN109407218 A CN 109407218A CN 201710694150 A CN201710694150 A CN 201710694150A CN 109407218 A CN109407218 A CN 109407218A
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- China
- Prior art keywords
- alignment pin
- alignment
- cuff
- pin
- protrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 64
- 238000010276 construction Methods 0.000 claims abstract description 40
- 239000000835 fiber Substances 0.000 claims description 78
- 238000003780 insertion Methods 0.000 claims description 39
- 230000037431 insertion Effects 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 230000000704 physical effect Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 53
- 230000012447 hatching Effects 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 108090000565 Capsid Proteins Proteins 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005549 size reduction Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3882—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using rods, pins or balls to align a pair of ferrule ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention relates to receptacle ferrules and optical fiber light connects system.A kind of receptacle ferrule, comprising: the cuff main body with end face；By the multifiber of cuff body supports, the multifiber has the optical fiber end adjacent with the end face of cuff main body；With the first alignment pin and the second alignment pin by cuff body supports, first alignment pin and the second alignment pin have the protrusion for the end face for projecting outwardly beyond cuff main body, at least the protrusion of the first alignment pin have can radial deformation construction, when protrusion be inserted into another cuff alignment opening in when, this can radial deformation construction permission protrusion be deformed radially inwardly relative to the central longitudinal axis of alignment pin.
Description
Technical field
The present disclosure generally relates to the fiber optic connectors for carrying out optics connection between the fibers.More specifically, this public affairs
Open the multi fiber optical connector being related to for carrying out optics connection between multifiber.Particularly, this disclosure relates to cuff group
Part and optical fiber light connects system.
Background technique
Fiber optic connector for carrying out optics connection between the fibers.Compared with using splicing, optical fiber light connects are used
The advantages of device progress optics connection is to can according to need easily to be connected and disconnected from optics connection.Fiber optic connector can wrap
Include single fiber optical connector and multi fiber optical connector.When two single fiber optical connectors are linked together, correspond to each
The simple optical fiber of optical connector is by coaxial alignment and optics connection each other.When two multi fiber optical connectors are linked together
When, the multifiber corresponding to a multi fiber optical connector is placed with and corresponds to the more of another multi fiber optical connector
Root optical fiber align.In general, the optical fiber of optical connector is supported in the referred to as structure of the relative stiffness of cuff.In order to reduce optics
Loss, it is desirable to which the cuff of connected optical connector is opposite to be precisely aligned, so that being supported on the corresponding optical fiber in cuff
Also opposite to precisely align.This precisely align helps to reduce the loss of signal.
Fig. 1 shows the optical fiber light connects system 20 of the illustrative prior art.Optical fiber light connects system includes in passing through
Between optical fiber optical adapter 24 be mechanically coupled to two multi fiber optical connectors 22 together.The multi fiber light of type shown in Fig. 1
Connector 22 is properly termed as multi fiber Push-up (MPO) connector.Each of multi-fiber optical connector 22 includes more of support
The cuff 26 of optical fiber 28.Optical fiber 28 corresponds to the Connectorized fiber optic cabling 30 terminated by multi fiber optical connector 22.When multi fiber light connects
When device 22 links together via optical fiber optical adapter 24, precisely aligning through pin and inserting between the cuff 26 of optical connector 22
Seat arrangement is to realize.For example, as shown in Figure 1, one in optical connector 22 is positive fiber optic connector, and including right by its
The alignment pin 32 for answering cuff 26 to carry.Another optical connector 22 is negative fiber optic connector, and including alignment opening 34 (that is,
Socket), the alignment opening is limited by corresponding cuff 26.When optical connector 22 is linked together, alignment pin 32 is assemblied in
The alignment between cuff 26 in alignment opening 34, to provide the optical connector 22 being connected to each other.Alignment pin 32 is solid pair
Pilot pin and be not designed into when insertion alignment opening 34 in when radial deformation.It is slightly less than alignment on the contrary, alignment pin 32 has and opens
The outer diameter of the diameter of mouth 34.Effective alignment between cuff 26 in order to realize the optical connector 22 of pairing, it may be desirable to be aligned
Tolerance between opening 34 and alignment pin 32 is accurate.This precision is likely difficult to safeguard, and typically results in relatively high
Manufacturing cost.In addition, even if accurately manufacture alignment pin 32 and alignment opening 34, the outer diameter of alignment pin 32 and alignment opening 34
Diameter between size difference also allow pin 32 opening 34 in carry out limited movement, this may negatively affect optical
Energy.
Summary of the invention
An aspect of this disclosure is related to a kind of alignment pin for fiber optic connector.In one example, alignment pin
Can radially deform so that when being inserted into corresponding alignment opening, alignment pin can radial deformation to it is smaller outside
Sectional dimension.Preferably, alignment pin is used together with the cuff of multi fiber optical connector.Preferably, having can radial deformation spy
Property two alignment pins be used for each multi fiber optical connector, but in other examples, an alignment pin can have can diameter
To the construction of deformation, and another alignment pin can have more rigid construction.
Another aspect of the present disclosure is related to a kind of alignment for the cuff of fiber optic connector to be aligned with cooperation cuff
Pin.In one example, alignment pin limits at least one longitudinal slit/slot, extends longitudinally past at least part of alignment pin
(for example, along protrusion of alignment pin), to allow alignment pin to deform, so that when the alignment of alignment pin insertion cooperation cuff
When in opening, the outer cross section size of alignment pin reduces.In some examples, alignment pin may include more than one longitudinal slot.
In some examples, alignment pin may include two alignment slots in the opposite sides of alignment pin.In some examples, two
A slot can deflect about 180 degree about the central longitudinal axis of alignment pin relative to each other.In some examples, alignment pin can
With with only one longitudinal slot, and alignment pin can also include hollow core.In some examples, alignment pin can be cylinder
Shape, and can include circular outer cross section profile before deformation.In some examples, alignment pin can have circle certainly
By holding.In some examples, alignment pin can have with jagged base end, for relative to pin holder axial restraint pair
Pilot pin.In some examples, two alignment pins can be fixed to multi fiber cuff.In some examples, multi fiber cuff can be with
Including the opening for receiving the multifiber between alignment pin.In some examples, one or more alignment pins can be with
With on the cuff for supporting four to 24 optical fiber.In some examples, optical fiber can be arranged with embarking on journey.In certain examples
In, the alignment between cuff of the pin for providing two MPO connectors.
Another aspect of the present disclosure is related to a kind of optical fiber light connects system comprising supports the positive cuff and branch of multifiber
Support the negative cuff of multifiber.Negative cuff defines that at least two alignments are open.Positive cuff includes being adapted to fit to alignment opening
At least two interior alignment pins.Outer cross section profile before the insertion of at least one of the alignment pin is open than corresponding alignment
Cross section profile it is bigger, alignment pin is inserted into the alignment opening alignment provided between positive cuff and negative cuff.Alignment pin tool
There is deformable construction, when alignment pin is inserted into its corresponding alignment opening, which allows the outer of alignment pin
The size of cross section profile reduces.In some examples, alignment pin has elastic construction, and from the larger cross-section profile before insertion
Smaller outer cross section profile after flexible deformation to insertion.It should be appreciated that at least one outer cross section of the outer cross section profile after insertion
Size is less than the correspondence outer cross section size of the outer cross section profile before insertion.Because selling from the outer cross section profile flexible deformation before insertion
Outer cross section profile after to insertion, so the pin of deformation applies spring load in alignment is open, because the construction of pin is intrinsic
The constraint of elastic resistance alignment opening, which will be sold to, pushes back the outer cross section profile before insertion.In some examples, alignment pin is by having
There is the material of the ingredient including metal (for example, stainless steel) to be made.
Another aspect of the present disclosure is related to a kind of optical fiber light connects system comprising the first cuff and the second cuff, each
Cuff supports at least one optical fiber.First cuff and the second cuff are adapted for engagement with together to be optically connected with its corresponding light
It is fine.First cuff includes at least one alignment pin, and the second cuff includes opening for receiving at least one alignment of alignment pin
Mouthful.The size of alignment pin is bigger than alignment opening.When alignment pin is inserted into alignment opening, the size that alignment pin is subjected to being forced subtracts
It is small.In one example, the size being forced reduction can be adapted to by the deformation (for example, flexible deformation) of alignment pin.
Another aspect of the present disclosure is related to a kind of alignment pin for cuff, and the size of the alignment pin is than corresponding alignment
It is open bigger, the alignment opening is for receiving the alignment pin.
According to the disclosure, a kind of receptacle ferrule is provided, comprising: the cuff main body with end face；By cuff body supports
Multifiber, the multifiber have the optical fiber end adjacent with the end face of cuff main body；With by cuff body supports
First alignment pin and the second alignment pin, the first alignment pin and the second alignment pin have the end face for projecting outwardly beyond cuff main body
Protrusion, at least protrusion of the first alignment pin have can radial deformation construction, when protrusion is inserted into another set
When in the alignment opening of hoop, this can the construction of radial deformation allow protrusion radial relative to the central longitudinal axis of alignment pin
It is deformed inward.
According to the disclosure, a kind of optical fiber light connects system is provided, comprising: negative fiber optic connector, comprising: there is end face
Cuff main body, the cuff main body limits to have and open positioned at the first alignment opening of the open end of endface and the second alignment
Mouthful, the first alignment opening and the second alignment opening have transversal cross-section shape；It is described with the multifiber by cuff body supports
Multifiber has the optical fiber end adjacent with the end face of cuff main body；And positive fiber optic connector, comprising: with end face
Cuff main body；By the multifiber of cuff body supports, the multifiber has the optical fiber adjacent with the end face of cuff main body
End；With the first alignment pin and the second alignment pin by cuff body supports, the first alignment pin and the second alignment pin have outward
Protrude past the protrusion of the end face of cuff main body, the protrusion of the first alignment pin and the second alignment pin is configured to fill
It fits in the first alignment opening and the second alignment opening of negative fiber optic connector, to provide the cuff master of negative fiber optic connector
At least protrusion tool of alignment between body and the cuff main body of positive fiber optic connector, the first alignment pin and the second alignment pin
Have can radial deformation construction, when in the first alignment opening and the second alignment opening that protrusion is inserted into negative fiber optic connector
When, this can the construction of radial deformation allow correspondence center longitudinal axis of the protrusion relative to the first alignment pin and the second alignment pin
Line is deformed radially inwardly, and protrusion has the outer transversal cross-section shape before insertion, the outer transversal cross-section shape limit before the insertion
Fixed sectional dimension is greater than the correspondence sectional dimension of the transversal cross-section shape of the first alignment opening and the second alignment opening, and dashes forward
Part has the outer transversal cross-section shape after insertion out, and the sectional dimension that the outer transversal cross-section shape after the insertion limits is little
In the correspondence sectional dimension of the first alignment opening and the transversal cross-section shape of the second alignment opening.
According to the disclosure, a kind of optical fiber light connects system is provided, comprising: the first cuff and the second cuff, each cuff
At least one optical fiber is supported, the first cuff supports alignment pin, and the second cuff limits the alignment for receiving alignment pin and is open,
The size of alignment pin is bigger than alignment opening, and when alignment pin is inserted into alignment opening, alignment pin is forced to smaller ruler
It is very little.
Various other aspects will be set forth in the description that follows.These aspects can be related to the group of independent feature and feature
It closes.It should be appreciated that foregoing general description and the following detailed description are only exemplary and explanatory, and this is not limited
The wide in range inventive concept that example disclosed in text is based on.
Detailed description of the invention
Be incorporated to and the attached drawing for constituting part of specification show some aspects of the disclosure, and with specification one
Play principle for explaining the principles of this disclosure.The brief description of accompanying drawing is as follows:
Fig. 1 shows the optical fiber light connects system of the prior art；
Fig. 2 shows the multi fiber cuffs with alignment pin according to the principle of the disclosure；
Fig. 3 shows the alignment pin of the multi fiber cuff of Fig. 2, wherein the base end of pin is supported by pin holder；
Fig. 4 is the perspective view of one of alignment pin of multi fiber cuff of the Fig. 2 made from the free end of alignment pin；
Fig. 5 is the perspective view of the alignment pin of the Fig. 4 made from the base end of alignment pin；
Fig. 6 is the side view of the alignment pin for Fig. 4 that the view turning 90 degrees partially from the longitudinal slot with alignment pin is made；
Fig. 7 is the side view of the alignment pin of the Fig. 4 made from the view with the longitudinal slot of alignment pin deflection 180 degree；
Fig. 8 is the side view of the alignment pin for Fig. 4 that the view being aligned from the longitudinal slot with alignment pin is made；
Fig. 9 is the end-view of the free end of the alignment pin of Fig. 4；
Figure 10 is the end-view of the base end of the alignment pin of Fig. 4；
Figure 11 is the cross-sectional view made along the hatching 11-11 of Fig. 9；
Figure 12 is the cross-sectional view made along the hatching 12-12 of Fig. 9；
Figure 13 is the cross-sectional view made along the hatching 13-13 of Fig. 8；
Figure 14 is the cross-sectional view made along the plane for halving the alignment pin of the component of Fig. 3；
Figure 15 is the cross-sectional view for showing the multi fiber cuff for the Fig. 2 being incorporated in positive multi fiber optical connector；
Figure 16 is the cross-sectional view for showing the optical fiber light connects system of the positive multi fiber optical connector including Figure 15, it illustrates
Positive multi fiber optical connector is aligned with corresponding negative multi fiber optical connector, and is also shown and be located at positive multi fiber optical connector
Optical fiber optical adapter between negative multi fiber optical connector；
Figure 17 is to show the positive multi fiber light connects that Figure 16 together is mechanically coupled to by intermediate fibres optical adapter
The cross-sectional view of device and negative multi fiber optical connector；
Figure 18 is the cross-sectional view made along hatching 18-18, it illustrates with as shown in fig. 13 that be inserted into before outer cross section
Shape/profile is compared, and the alignment pin of positive multi fiber optical connector is deformed to outer cross section shape/profile after the insertion of size reduction
(for example, radial contraction, be deformed radially inwardly, be inwardly compressed)；
Figure 18 A is the enlarged drawing of the alignment pin with the outer cross section shape after insertion；
Figure 19 is the perspective view according to the base end of another alignment pin of the principle of the disclosure；
Figure 20 is the side view of the alignment pin of Figure 19；
Figure 21 is the base portion end-view of the alignment pin of Figure 19；
Figure 22 is the cross-sectional view made along the hatching 22-22 of Figure 21；
Figure 23 is the cross-sectional view made along the hatching 23-23 of Figure 20；With
Figure 24 is another alignment pin according to the principle of the disclosure.
Specific embodiment
Fig. 2 shows the receptacle ferrules 40 according to the principle of the disclosure.Receptacle ferrule 40 includes cuff main body 42, pin holding
Device 44 and two alignment pins 46.Cuff main body 42 includes the end face 48 with 51 relative positioning of base portion.Pin holder 44 is mounted on base
At portion 51.Cuff main body 42 defines multiple fiber openings 52 for reception optical fiber.Optical fiber may include single mode optical fiber or more
Mode fiber.Fiber openings 52 are located between alignment pin 46.It should be appreciated that cuff main body can be generally used for propping up according to application
Four to 24 optical fiber are supportted, but the optical fiber more than 24 can also be supported.In the present case, cuff main body 42
Suitable for accommodating 12 optical fiber.If supporting the optical fiber more than 12, cuff main body will generally include multirow optical fiber and open
Mouthful.
In the example shown, end face 48 is shown as vertical relative to alignment pin 46.In other examples, end face 48 can
To be tilted relative to alignment pin 46.As an example, end face 48 can be relative to alignment pin 46 from about 8 degree of vertical tilt.
It should be appreciated that cuff main body 42 was generally rectangular.As shown, cuff main body 42 may include length L, width
W and depth D.Cuff main body 42 can limit main shaft 43 along length L, and limit secondary axis 45 along width W.43 He of main shaft
Secondary axis 45 can intersect at the center of cuff main body 42 and can be vertical relative to each other.Optical fiber and alignment pin 46 can be with
Extend along depth D.Alignment pin 46 can be separated from each other along length L, and can be aligned along main shaft 43.Fiber openings 52 can be with
It is positioned along such row, the row extends at the position being substantially located between alignment pin 46 along length L.In an example
In, cuff main body 42 can have the material composition including plastics (such as, thermoplastic).In one example, plastics can
To include the plastics of glass-filled.In one example, thermoplastic may include polyphenylene sulfide.
Cuff main body 42 can also include pin construction opening 54, and the pin construction opening is preferably parallel to fiber openings 52
And extend along depth D.Alignment pin 46 is preferably fixed in opening 54.The base end 56 (Fig. 5) of alignment pin 46 can fix
To pin holder 54.In some examples, alignment pin 46 may include interlocking with pin holder 54 or engaging in other ways
Recess 58 (referring to Figure 12 and 14), to limit alignment pin 46 along the axial movement of depth dimensions D.Alignment pin 46 further includes to evagination
It is out more than the protrusion 50 of end face 48.
It should be appreciated that alignment pin 46 have can radial deformation construction, when alignment pin 46 is inserted into the alignment of negative cuff
Opening in when, this can radial deformation construction allow alignment pin 46 outer transversal cross-section shape be deformed radially inwardly.Can radially it become
The construction of shape can be provided by mechanical features or structure, such as, outer recess portion (for example, have one of the outside of opening or
Multiple longitudinal slots), and/or hollow space (for example, hollow core, hollow channel) and/or be related to be optionally removed/eliminate material
Expect to promote/enhance the other types of structure of the radially variable shape of pin.For manufacture efficiency, it is preferable that mechanical features edge
The whole length of alignment pin consistently extends, but in some examples, mechanical features can be along the length of given alignment pin
A part or multiple portions setting (for example, along protrusion 50).In other examples, it can be provided by material selection pair
Pilot pin 46 can radial deformation construction.For example, alignment pin can be by having the material of the ingredient of intrinsic deformable physical property
It is made, the radial dimension of reduction is deformed to when the physical property permission alignment pin is in insertion alignment opening.Ingredient can wrap
Composite parts or homogeneous composition are included, the composite parts includes more than one material, and the homogeneous composition includes overall consistent
Only a kind of material.Ingredient may include the combination of metal material and plastics and metal material.In some examples, using material
Material selects to provide suitable degree of radially variable shape with the combination of mechanical features for alignment pin.
In some examples, 46 material as the metal such as with elastic characteristic of alignment pin is constituted.Therefore, it is aligned
The deformation of the outer transverse cross-sectional profile of pin 46 is preferably substantially mainly elasticity, so that working as alignment pin 46 from corresponding yin set
When the alignment opening of hoop removes, rebound is returned to the outer cross section shape before biggish insertion by the outer transversal cross-section shape of alignment pin 46
Shape.In one example, alignment pin 46 has the ingredient including metal material (such as, stainless steel).
With reference to Fig. 3, alignment pin 46 have features designed to allow alignment pin 46 when being inserted into corresponding alignment opening radially to
The mechanical features of interior deformation.Deformation may include the central longitudinal axis 62 (Fig. 4) relative to each of alignment pin 46
Radially-inwardly shrink.In one example, the machinery for allowing alignment pin 46 to be deformed radially inwardly when insertion is aligned in opening is special
Sign may include longitudinal slot 64.Longitudinal slot 64 can be the outer groove with the open side 66 (referring to Figure 13) faced out.Longitudinal slot
64 can have the length for being parallel to the extension of central longitudinal axis 62 and along direction generally circumferentially relative to center longitudinal axis
The groove width GW that line 62 extends (referring to Figure 13).Slot 64 preferably at least extends along the protrusion 50 of alignment pin 46.As schemed
Show, longitudinal slot 64 longitudinally extends in the whole length of each of alignment pin 46.In the arrangement of Fig. 2 and 14, alignment pin
46 are located on main shaft 43, and the open side 66 of slot 64 faces out in mutually opposite directions.In the example shown, right
Each of pilot pin 46 includes only one longitudinal slot 64.As shown, the open side of the slot 64 of that alignment pin 46 in left side
66 can be towards left direction, and the side 66 of the slot 64 of that alignment pin 46 on right side can be towards right direction.
With reference to Fig. 4-13, the free end 68 of each alignment pin 46 can be it is arc or circular, with have terminate at top
The dome-like formation of point.This similar round or taper configuration are convenient for that alignment pin 46 is inserted into correspondence by providing guidance/introducing function
Alignment opening in.In the example shown, alignment pin 46 has most of length along alignment pin 46 substantially cylindrical
Shape.As shown in figure 13, alignment pin 46 have insertion before outer transversal cross-section shape 70, it is generally circular and have section
The CD of size1(for example, outer diameter).Transversal cross-section shape and sectional dimension CD before insertion1Preferably more than alignment pin 46 will be inserted into
The correspondence transversal cross-section shape of alignment opening therein.As shown in figure 13, alignment pin 46 can also include being connected to longitudinal slot 64
Hollow core 72.Hollow core 72 can be bigger than slot 64, and can optionally extend the entire of each alignment pin 46
Length.In some examples, hollow core 72 and the cross sectional shape lateral out 70 before insertion can be same relative to central axis 62
The heart.In some examples, hollow core 72 can be cylinder, and can have circular transversal cross-section shape.At certain
In a little examples, the sectional dimension CD of hollow core 722(for example, diameter) can be greater than the groove width GW of longitudinal slot 64.Certain
In example, slot 64 has the length that the whole length along alignment pin 46 completely extends from base end 56 to free end 68.At certain
In a little examples, hollow core 72 can have the matched transversal cross-section shape of outer transversal cross-section shape with alignment pin 46, so that
Alignment pin 46 is limited by the wall 78 of 62 circumferential skewing of central longitudinal axis around alignment pin 46 of constant thickness T.The slot of slot 64
Depth GD extends to hollow core 72 from the outside of alignment pin 46 by wall 78.Groove depth DG corresponds to the thickness T of wall 78.
Figure 14 be show alignment pin 46 how with the interlocking cross-sectional view of pin holder 44.In this example, pin holder 44
Shoulder 80 be assemblied in the recess 58 of alignment pin 46.It should be appreciated that recess 58 is located at the open side with slot 64 of alignment pin 46
66 that opposite side.In other words, recess 58 is relative to the open side 66 of slot 64 about the deflection of central longitudinal axis 62 about 180
Degree.
Figure 15 shows the multi fiber optical connector 90 of the receptacle ferrule 40 in conjunction with Fig. 2.Multi fiber optical connector 90 includes
Connector body 91 with front end 94 and rear end 96.After connector body 91 includes procapsid 92 and is attached to procapsid 92
The back casing 98 at end.Multifiber 100 is routed in multi fiber optical connector 90 by back casing 98.Before optical fiber 100 includes
End part 102, the front end portion are coupled or are otherwise affixed in the fiber openings 54 of cuff main body 42.Protective cover
104 may be mounted on the rear end of back casing 98, and can be used for providing strain relative to the cable for including optical fiber 100 and disappear
It removes.Back casing 98, which may be used as being detained, limits the spring stopper of the spring 99 between back casing 98 and the rear portion of receptacle ferrule 40.
In this way, shell bias receptacle ferrule 40 of the spring 99 along forward direction relative to multi fiber optical connector 90.Connection
Device main body 91 includes the recess portion 106 of the locking part 108 for reception optical fiber optical adapter 110, and the optical fiber optical adapter is used for
Multi fiber optical connector 90 is mechanically connected to corresponding negative multi fiber optical connector 112 (referring to Figure 16).Multi fiber light connects
Connecing device 90 further includes releasing sleeve 114, and the releasing sleeve can be relative to the connector body 91 of multi fiber optical connector 90
It pulls back, to provide gap, allows to remove multi fiber light connects from adapter 110 to allow locking part 108 to be bent outwardly
Device 90.
Negative multi fiber optical connector 112 has essential structure identical with positive multi fiber optical connector 90, in addition to its cuff
120 have alignment opening 122 rather than alignment pin.The support of cuff 120 is located at the optical fiber 100 between alignment opening 122.Such as Figure 17
It is shown, when positive multi fiber optical connector 90 and negative multi fiber optical connector 112 are combined together by optical fiber optical adapter 110
When, the optical fiber of positive multi fiber optical connector 90 is optically coupled to the optical fiber of negative multi fiber optical connector 112.Pass through positive multi fiber
Matching between the alignment pin 46 of optical connector 90 and the alignment opening 122 of negative multi fiber optical connector 112 provides coupled
Effective alignment between optical fiber.It should be appreciated that the transversal cross-section shape ratio of the alignment opening 122 of negative multi fiber optical connector 112
Outer transversal cross-section shape 70 before the insertion of alignment pin 46 is small (referring to Figure 13).Therefore, in order to by the protrusion of alignment pin 46
50 are assemblied in alignment opening 122, and the protrusion 50 of alignment pin 46 must be deformed radially inwardly to certain size, the ruler
It is very little compatible with transversal cross-section shape that is being directed at opening 122, and optionally at least partially comply with the transverse direction of the alignment opening
Cross sectional shape.When fiber optic connector 90,112 is combined together, alignment pin 46 is axially forced to and enters alignment opening 122
In.Be forced to and entered in alignment opening 122 as the protrusion 50 of alignment pin 46 is axial, protrusion 50 be forced it is radial to
Interior deformation, so that one or more outer cross section sizes of protrusion 50 are equal to the correspondence sectional dimension of alignment opening 122, and
Correspondence sectional dimension of all outer cross section sizes of protrusion 50 no more than alignment opening 122.Preferably, alignment pin 46
It is substantially elastic for being deformed inward, so that becoming when the protrusion 50 of alignment pin 46 radial deformation in alignment opening 122
The protrusion 50 of shape applies outwardly radial spring load, which is applied to set in alignment opening 122
In the part for defining opening 122 of hoop main body.Spring load provides appropriate between alignment pin 46 and alignment opening 122
And firm cooperation.
As described above, the deformation of alignment pin 46 is preferably substantially elastic.Therefore, when fiber optic connector 90,112
When being disconnected from each other, alignment pin 46 is preferably from the outer transversal cross-section elasticity of shape after the insertion of size reduction back to biggish
Outer transversal cross-section shape before insertion.Figure 18 and 18A shows the protruding portion of the alignment pin 46 in the state that is deformed radially inwardly
Divide 50.In this state, alignment pin 46 has radially-inwardly been compressed into from the outer transversal cross-section shape before the insertion of Figure 13 slotting
Outer transversal cross-section shape after entering (referring to Figure 18 A).It should be appreciated that slot 64 and hollow core 72 allow the wall 78 of alignment pin 46 to exist
It is bent at region 79, is reduced to pair so that the groove width GW of longitudinal slot 64 is slightly reduced and also results in the peripheral dimension of alignment pin
Pilot pin 46 can be assemblied in the state in alignment opening 122.
Figure 19-23 shows another alignment pin 246 of the principle according to the disclosure.Alignment pin 246 includes the structure of substitution,
The structure of the substitution allows the shape radial contraction of alignment pin 246, radial deformation or becomes circumferential smaller in other ways, so as to
In the alignment of size is open before allowing alignment pin 246 to be assemblied in the insertion less than alignment pin.In the example shown, alignment pin
246 do not have hollow core.On the contrary, alignment pin 246 includes the deformation slot 247 on the circumferentially opposed two sides of alignment pin 246.
In one example, slot 247 is positioned to deflect about 180 degree circumferentially from one another.In other examples, it can provide between the slots
Other deflection angles.In addition, in other examples, three, four or more slots can be provided.Slot 247 is at least along alignment pin
246 protrusion extends, and preferably extends along the whole length of alignment pin.Slot 247 is configured to allow for alignment pin 246
Shape (for example, outer transversal cross-section shape) is deformed radially inwardly, to allow alignment pin to be inserted into smaller alignment opening.It should manage
Solution, alignment pin 246 can by with described in alignment pin 46 in a manner of identical mode connect for receptacle ferrule and optical fiber light
It connects in device.
Figure 24 shows another alignment pin 346 of the principle according to the disclosure.Alignment pin 346 has solid not trough of belt
Construction.Different from using slot or hollow core, come the radially variable shape for enhancing pin 346, pin 346 is by having certain elasticity
The material (for example, plastics) of modulus is constituted, and the elasticity modulus is suitable for making pin when being inserted into smaller alignment opening in pin
Radial deformation is to smaller size.
Pin as described herein is deformed, it should be understood that deformation does not need to be uniform in the circumferential direction around pin.Phase
Instead, some regions or part can deform more than other regions or part.In addition, the outer transversal cross-section shape of alignment pin need not
The complementation of transversal cross-section shape or matching for being entirely formed as and being directed at opening.On the contrary, some parts of the peripheral shape of alignment pin
Cuff main body can directly be contacted defines the part of alignment opening, and other parts do not contact cuff main body.Other
In example, the outer transversal cross-section shape of alignment pin can generally comply with cuff define alignment opening part and with
It is contacted.
In the case where not departing from the scope of the present disclosure and spirit, the various modifications of the disclosure and deformation are for this field skill
Art personnel will be apparent, and it is to be understood that the scope of the present disclosure should not be unduly limited to institute described in this paper
Example.
Claims (32)
1. a kind of receptacle ferrule, comprising:
Cuff main body with end face；
By the multifiber of cuff body supports, the multifiber has the optical fiber end adjacent with the end face of cuff main body；
With
By the first alignment pin and the second alignment pin of cuff body supports, the first alignment pin and the second alignment pin, which have, to be protruded outward
More than the protrusion of the end face of cuff main body, at least the protrusion of the first alignment pin have can radial deformation construction, when
Protrusion be inserted into another cuff alignment opening in when, this can radial deformation construction allow protrusion relative to alignment
The central longitudinal axis of pin is deformed radially inwardly.
2. receptacle ferrule according to claim 1, wherein the first alignment pin and the second alignment pin all have can radial deformation
Construction.
3. receptacle ferrule according to claim 1, wherein can radial deformation construction allow protrusion relative to center
Longitudinal axis radially-inwardly flexible deformation.
4. receptacle ferrule according to claim 1, wherein can the construction of radial deformation allow protrusion before insertion
It is deformed between outer transversal cross-section shape after outer transversal cross-section shape and insertion, and the outer transversal cross-section shape before insertion is extremely
A few sectional dimension is bigger than the correspondence sectional dimension of the outer transversal cross-section shape after insertion.
5. receptacle ferrule according to claim 1, wherein the first alignment pin includes along its whole length or substantially all
Length can radial deformation construction.
6. receptacle ferrule according to claim 1, wherein the first alignment pin be it is solid and do not have longitudinal slot, and
Can the construction of radial deformation pass through by the radial ruler of reduction can be elastically compressed when protrusion is inserted into alignment opening
Very little one or more materials construct at least protrusion of the first alignment pin to provide.
7. receptacle ferrule according to claim 6, wherein protrusion has compound construction.
8. receptacle ferrule according to claim 6, wherein protrusion has the construction of homogeneous.
9. receptacle ferrule according to claim 1, wherein can radial deformation construction by along at least prominent of the first alignment pin
At least one longitudinal slot that the length of part limits out provides.
10. receptacle ferrule according to claim 9, wherein the first alignment pin has length, and longitudinal slot is along first pair
The length of pilot pin completely or generally all extends.
11. receptacle ferrule according to claim 1, wherein can radial deformation construction by the first alignment pin edge at least
The hollow core that the length of protrusion limits provides.
12. receptacle ferrule according to claim 11, wherein the first alignment pin has length, and hollow core is along the
The length of one alignment pin completely or generally all extends.
13. receptacle ferrule according to claim 1, wherein can the construction of radial deformation include being limited by the first alignment pin
At least one longitudinal slot, and can the construction of radial deformation further include the hollow core limited by the first alignment pin, it is described extremely
A few longitudinal slot is connected to hollow core.
14. receptacle ferrule according to claim 13, wherein outer section of the cross sectional shape of hollow core and the first alignment pin
Face shape is concentric, wherein the outer cross section shape of the cross sectional shape of hollow core and the first alignment pin is circular, wherein hollow
The diameter of the cross sectional shape of core is greater than the width of longitudinal slot.
15. receptacle ferrule according to claim 1, wherein the first alignment pin and the second alignment pin all have at least partly
Ground by longitudinal slot provide can radial deformation construction.
16. receptacle ferrule according to claim 15, wherein longitudinal slot has open side, and the first alignment pin is vertical
To the open side and the second alignment pin of slot longitudinal slot open side in the opposite direction.
17. receptacle ferrule according to claim 16, wherein each of the first alignment pin and the second alignment pin include
Only one longitudinal slot.
18. receptacle ferrule according to claim 15, wherein cuff main body is substantially rectangular, and has along main shaft
The length of extension and the width extended along the secondary axis perpendicular to main shaft, wherein the first alignment pin and the second alignment pin are along main
Axis alignment.
19. receptacle ferrule according to claim 1, wherein can radial deformation construction by along the first alignment pin at least
Multiple longitudinal slots that the length of protrusion limits provide.
20. receptacle ferrule according to claim 19, wherein the multiple longitudinal slot is parallel to each other, and about first
The central longitudinal axis of alignment pin is spaced circumferentially from one another.
21. receptacle ferrule according to claim 20, wherein the multiple longitudinal slot includes two longitudinal slots, and institute
Two longitudinal slots are stated about central longitudinal axis 180 degree spaced circumferentially from one another.
22. a kind of optical fiber light connects system, comprising:
Negative fiber optic connector, comprising:
Cuff main body with end face, the cuff main body limit have positioned at the open end of endface the first alignment opening and
Second alignment opening, the first alignment opening and the second alignment opening have transversal cross-section shape；With
By the multifiber of cuff body supports, the multifiber has the optical fiber end adjacent with the end face of cuff main body；
And
Positive fiber optic connector, comprising:
Cuff main body with end face；
By the multifiber of cuff body supports, the multifiber has the optical fiber end adjacent with the end face of cuff main body；
With
By the first alignment pin and the second alignment pin of cuff body supports, the first alignment pin and the second alignment pin, which have, to be protruded outward
More than the protrusion of the end face of cuff main body, the protrusion of the first alignment pin and the second alignment pin is configured to be assemblied in
In the first alignment opening and the second alignment opening of negative fiber optic connector, with provide negative fiber optic connector cuff main body and
At least protrusion of alignment between the cuff main body of positive fiber optic connector, the first alignment pin and the second alignment pin has can
The construction of radial deformation, when protrusion is inserted into the first alignment opening and the second alignment opening of negative fiber optic connector,
This can the construction of radial deformation allow correspondence central longitudinal axis of the protrusion relative to the first alignment pin and the second alignment pin
It is deformed radially inwardly, protrusion has the outer transversal cross-section shape before insertion, and the outer transversal cross-section shape before the insertion limits
Sectional dimension be greater than the first alignment opening and the second alignment opening transversal cross-section shape correspondence sectional dimension, and it is prominent
Part has an outer transversal cross-section shape after insertion, the sectional dimension that outer transversal cross-section shape after the insertion limits no more than
The correspondence sectional dimension of the transversal cross-section shape of first alignment opening and the second alignment opening.
23. optical fiber light connects system according to claim 22, wherein the first alignment pin and the second alignment pin can be radial
The construction of deformation includes at least one longitudinal slot limited by each of the first alignment pin and the second alignment pin.
24. optical fiber light connects system according to claim 22, wherein the first alignment pin and the second alignment pin can be radial
The construction of deformation includes circumferentially-spaced and in parallel multiple limited by each of the first alignment pin and the second alignment pin
Slot.
25. optical fiber light connects system according to claim 22, wherein the first alignment pin and the second alignment pin can be radial
The construction of deformation includes the hollow core limited by each of the first alignment pin and the second alignment pin.
26. optical fiber light connects system according to claim 22, wherein the first alignment pin and the second alignment pin can be radial
The construction of deformation includes the hollow core limited by each of the first alignment pin and the second alignment pin and with open side
Slot.
27. optical fiber light connects system according to claim 22, wherein the first alignment pin and the second alignment pin can be radial
The construction of deformation is provided by constructing the first alignment pin and the second alignment pin by the deformable material with physical property, when the
When in the protrusion of one alignment pin and the second alignment pin insertion the first alignment opening and the second alignment opening, the physical property
Material is allowed to be deformed to smaller size.
28. a kind of optical fiber light connects system, comprising:
First cuff and the second cuff, each cuff support at least one optical fiber, and the first cuff supports alignment pin, and second set
Hoop limits the alignment for receiving alignment pin and is open, and the size of alignment pin is bigger than alignment opening, and when alignment pin insertion pair
When in quasi- opening, alignment pin is forced to smaller size.
29. optical fiber light connects system according to claim 28, wherein alignment pin limits one or more slots, for working as
Allow alignment pin radial deformation to smaller size when in alignment pin insertion alignment opening.
30. optical fiber light connects system according to claim 28, wherein alignment pin has hollow core, for when alignment
Allow alignment pin radial deformation to smaller size when in pin insertion alignment opening.
31. optical fiber light connects system according to claim 28, wherein alignment pin is by the plastic material with elasticity modulus
It constitutes, the elasticity modulus is suitable for allowing alignment pin radial deformation to smaller size when alignment pin is inserted into alignment opening.
32. optical fiber light connects system according to claim 28, wherein alignment pin has hollow core and has open side
One or more slots, for allowing alignment pin radial deformation to smaller size when alignment pin is inserted into alignment opening.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694150.0A CN109407218A (en) | 2017-08-15 | 2017-08-15 | Receptacle ferrule and optical fiber light connects system |
| PCT/US2018/046262 WO2019036297A1 (en) | 2017-08-15 | 2018-08-10 | Ferrule assembly and fiber optic connection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694150.0A CN109407218A (en) | 2017-08-15 | 2017-08-15 | Receptacle ferrule and optical fiber light connects system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109407218A true CN109407218A (en) | 2019-03-01 |
Family
ID=65362032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710694150.0A Pending CN109407218A (en) | 2017-08-15 | 2017-08-15 | Receptacle ferrule and optical fiber light connects system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109407218A (en) |
| WO (1) | WO2019036297A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110119008A (en) * | 2019-05-28 | 2019-08-13 | 四川六九一二科技有限公司 | Fiber optic connector |
| CN113970813A (en) * | 2020-07-24 | 2022-01-25 | 扇港元器件有限公司 | Ferrule subassembly for fiber optic connector |
| CN114730049A (en) * | 2019-09-17 | 2022-07-08 | 美国康涅克有限公司 | Card sleeve pusher |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114787678B (en) * | 2020-03-24 | 2025-05-16 | 株式会社藤仓 | Pin clamp for ferrule, pin clamp with guide pin, and optical connector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3221799B2 (en) * | 1994-08-05 | 2001-10-22 | 住友電気工業株式会社 | Optical connector ferrule and method of manufacturing the same |
| JPH0894883A (en) * | 1994-09-28 | 1996-04-12 | Fujikura Ltd | Multi-fiber optical connector |
| JP2001133661A (en) * | 1999-11-04 | 2001-05-18 | Fujikura Ltd | Guide pins and optical connectors with resin |
| US8768125B2 (en) * | 2010-04-26 | 2014-07-01 | Corning Cable Systems Llc | Guide pin for aligning ferrules with enhanced alignment feature |
| WO2016087449A1 (en) * | 2014-12-01 | 2016-06-09 | Commscope Asia Holdings B.V. | Multi-fiber optic connector with pivotally-aligned ferrule |
-
2017
- 2017-08-15 CN CN201710694150.0A patent/CN109407218A/en active Pending
-
2018
- 2018-08-10 WO PCT/US2018/046262 patent/WO2019036297A1/en not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110119008A (en) * | 2019-05-28 | 2019-08-13 | 四川六九一二科技有限公司 | Fiber optic connector |
| CN110119008B (en) * | 2019-05-28 | 2024-02-02 | 四川六九一二科技有限公司 | Optical fiber coupler |
| CN114730049A (en) * | 2019-09-17 | 2022-07-08 | 美国康涅克有限公司 | Card sleeve pusher |
| CN114730049B (en) * | 2019-09-17 | 2023-05-12 | 美国康涅克有限公司 | Card sleeve push |
| US12061364B2 (en) | 2019-09-17 | 2024-08-13 | Us Conec Ltd. | Ferrule push |
| CN113970813A (en) * | 2020-07-24 | 2022-01-25 | 扇港元器件有限公司 | Ferrule subassembly for fiber optic connector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019036297A1 (en) | 2019-02-21 |
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