CN203414625U - SC type plastic fiber connector - Google Patents
SC type plastic fiber connector Download PDFInfo
- Publication number
- CN203414625U CN203414625U CN201320396066.8U CN201320396066U CN203414625U CN 203414625 U CN203414625 U CN 203414625U CN 201320396066 U CN201320396066 U CN 201320396066U CN 203414625 U CN203414625 U CN 203414625U
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- plastic
- optical fiber
- optical fibre
- lock pin
- plastic optical
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Abstract
The utility model provides an SC type plastic fiber connector for solving the problem that a GI type plastic fiber is incapable of cooperating with a conventional fiber connector for use due to a diameter greater than the diameter of a quartz fiber and smaller than the diameter of a common plastic fiber. The SC-type plastic fiber connector comprises an extension cap, a spring, an insertion core, an insertion core outer cover and a sleeve. The extension cap, the insertion core, the spring and the insertion core outer cover are successively assembled. The plastic fiber connector further comprises an SC casing and a tail tube, wherein the SC casing is provided with an insertion type switch; the tail tube encloses a transition area from a fiber to the insertion core outer cover; the insertion core is of a hollow structure; and the insertion core hollow structure has a bore diameter of 1.0 mm.
Description
Technical field
The utility model relates to plastic optical fiber installing area, is specifically related to a kind of joints of optical fibre.
Background technology
Silica fibre is as the pioneer of fiber optic communication field, and its installation cost is but high.Silica fibre has overcome the serious problem of traditional communication mode electromagnetic interference (EMI), but install, continues very inconveniently, and cost is very high.Silica fibre quality is crisp, bad mechanical strength, install, continue needs certain instrument, equipment and technology; Core diameter is little, and docking is difficult for, along separate routes, be coupled dumb; The bending radius of optical cable is large, easily damages.These problems that silica fibre exists have not only increased the enforcement difficulty of optical fiber telecommunications system, have also increased system installation and maintenance cost simultaneously.In the case, plastic optical fiber is introduced into fiber optic communication field.
Plastic optical fiber does not have the problem of installation and maintenance difficulty, but the transmission range of SI plastic optical fiber is shorter, can only be for hundred rice grain pattern letters.SI plastic fiber core refractive index is greater than coating refractive index, realizes incident light total reflection occurs at core-Pi interface with this, and the transmission of light in fibre core relies on this total reflection to advance with serrate.Because the incident angle of incident light is different, cause each mould light to arrive the asynchronism(-nization) of receiver, and occur pulse strenching phenomenon.Under the limited condition of broadening, the incident angle of the incident light of SI plastic Optical Fiber Transmission is limited, causes its Bandwidth-Constrained, again because of the existence of dispersion, causes SI plastic optical fiber communication distance to be confined to hundred meters.
GI plastic optical fiber has than the much bigger bandwidth of SI plastic optical fiber, and transmission range is also much larger than SI plastic optical fiber simultaneously.GI plastic optical fiber not only has common plastics optical fiber light weight, softness, insensitive to vibrating, bending radius is large, and pulling strengrth is excellent, durable, it is little to take up room, bandwidth is high, it is insensitive that peer end of the connection face is hidden the dust and the chip that stay, do not produce radiation, is not subject to the impact of electromagnetic interference (EMI) and radio frequency interference and noise completely, safe coefficient is high, data transmission possibility is not ravesdropping, cutting, wiring, bonding, polishing and other handling eases, the feature that installation and maintenance cost is low; And light when transmit in GI plastic optical fiber, refractive index Cong Zhou center to edge reduces gradually, radially being para-curve changes, make each mould light transmission speed therein different, and that their arrive time of receiver is almost identical, output pulse strenching is little, so much bigger than SI plastic optical fiber of GI plastic bandwidth of an optical fiber, long transmission distance, can easily transfer to the above distance of 500m simultaneously.
Continuing of any optical fiber all will complete by the joints of optical fibre.Existing silica fibre interface is various in style, but is not all suitable for plastic optical fiber.No matter being external diameter or core diameter, silica fibre is all less than plastic optical fiber, so silica fibre connector is not suitable for plastic optical fiber.Simultaneously, the core diameter of GI plastic optical fiber and external diameter are less than again SI plastic optical fiber, it is not tight that the GI plastic optical fiber insertion SI plastic joints of optical fibre easily occur that the joints of optical fibre coordinate with optical fiber, the problem of the difficult alignment of luminous point, so the SI plastic joints of optical fibre are not suitable for GI plastic optical fiber yet.
Utility model content
The utility model provides a kind of SC plastic joints of optical fibre, and solved GI plastic optical fiber diameter and be greater than silica fibre and be less than again common plastics optical fiber, and the problem that can not be used in conjunction with existing fiber connector.
Technical solutions of the utility model are:
A kind of SC plastic joints of optical fibre, comprise that one extends lid, a spring, a lock pin, a lock pin outer cover and a sleeve, described prolongation lid, lock pin, spring and lock pin outer cover fit together successively, described plastic optical fibre connector also comprises a SC shell and a tail pipe, described SC shell is with plug-in switch, described tail pipe is surrounded on optical fiber to described lock pin outer cover transitional region, and described lock pin is hollow-core construction, and the diameter of bore of described lock pin hollow-core construction is 1.0mm.
The beneficial effects of the utility model are:
The SC plastic joints of optical fibre that the utility model provides, can realize GI plastic optical fiber and with the stable connection of fibre-optic interface device, advance the universal of GI plastic optical fiber.
GI plastic optical fiber has been realized higher transfer rate and bandwidth, uses a fine optical fiber can transmit at a high speed the vast capacity of 10Gbps, and also has the possibility that further improves transmission speed;
Power consumption is low, saves the energy;
Do not produce electromagnetic noise, be not subject to electromagnetic interference influence, zero radiation; To pull line light by 1/3 than common for cable;
Cable diameter is thinner, has promoted the degree of freedom of appearance property and design;
The feature that possesses plastics distinctive " folding constantly ", and knotting or bending do not affect communication efficiency yet, can arbitrarily process, and freely carries out wires design;
Core diameter and optical fiber external diameter can be changed arbitrarily, plastic optical fibre connector cost can be reduced;
Transmission range is long, has overcome the restriction of common plastics optical fiber hundred rice grain pattern letters.
Accompanying drawing explanation
Fig. 1 SC plastic joints of optical fibre figure in bulk
Fig. 2 SC plastic joints of optical fibre outside drawing.
Embodiment
Optical fiber communication have bandwidth, at a high speed, exempt from electromagnetic interference (EMI), radiationless, anti-eavesdrop, the multiple advantage such as safe and reliable.At present optical fiber communication medium has two kinds of silica fibre and plastic optical fibers, and wherein, plastic optical fiber can be divided into again SI plastic optical fiber and GI plastic optical fiber.
Silica fibre luminous point docking precision prescribed is high, needs professional instrument, technology to operate, and meanwhile, silica fibre is very responsive to vibration, high to application environmental requirement.SI plastic Optical Fiber Transmission distance is 100m only, at present can only be for " last hundred meters " engineering of fiber entering household.GI plastic optical fiber has overcome the shortcoming that silica fibre installation and maintenance cost is high and SI plastic Optical Fiber Transmission distance is short simultaneously, is conducive to advance the universal of light net.
The utility model is greater than silica fibre for GI plastic fibre diameter and is less than again common plastics optical fiber, and the problem that can not be used in conjunction with existing fiber connector, a kind of SC plastic joints of optical fibre of the GI of being applicable to plastic optical fiber are provided, have been conducive to advance the universal of GI plastic optical fiber.
Plastic optical fibre connector provided by the utility model is the SC plastic joints of optical fibre, as depicted in figs. 1 and 2, chief component have extend cover 11, lock pin 12, spring 13, lock pin outer cover 14 and sleeve 15, also comprise that SC covers 16 and tail pipe 17 simultaneously.On SC lid 16, with a plug-in switch, this switch can and connect the spacing of relevant position between element as location and plastic optical fibre connector.Lock pin 13 is hollow-core construction, external diameter value is 2.5mm, diameter of bore is 1.0mm, convenience when the perfluor plastic optical fiber that has guaranteed external diameter 0.5mm inserts plastic optical fibre connector, simultaneously, also be unlikely to because external diameter and the lock pin internal orifice dimension of perfluor plastic optical fiber have big difference, and make plastic optical fibre connector unstable with being connected of perfluor plastic optical fiber.
As shown in Figure 1, this plastic optical fibre connector assembling mode is as follows:
With scissors intercepting, need the plastic optical fiber of length, use optical fiber cutter cutting optical fibre, obtain smooth end face;
Apart from end points 2cm place, (distance of peelling off optical fiber oversheath can appropriately adjust according to actual conditions with wire-stripping pliers, to peel off optical fiber oversheath, but guarantee that plastic optical fibre connector penetrates after optical fiber, fiber end face flushes with the lock pin mouth of plastic optical fibre connector), tail pipe 17 is penetrated to optical fiber;
Prolongation lid 11, lock pin 12, spring 13, lock pin outer cover 14 are fitted together successively, form an assembly;
The plastic optical fibre connector assembling is assembled into SC shell 16;
So far, the SC plastic joints of optical fibre have formally assembled, as shown in Figure 2.
It should be noted that, SC shell 16 utilizes glue or other stickums and connector to be fixed together, so the SC plastic joints of optical fibre that assemble can not be split, but, plastic optical fiber can freely penetrate or extract out lock pin 12, when certainly plastic optical fiber is extracted lock pin 12 out, need to apply certain external force, and the plastic optical fiber that has again departed from the SC plastic joints of optical fibre can be combined with other plastic optical fibre connectors again.
In lock pin 13 is rolled in exposed flexible optical fibre packages, realized convenient and swift that optical fiber patches, protect optical fiber to avoid external force direct effect simultaneously, safeguarded the stable of optical fiber property, lock pin outer cover 14 is lock pin 13 and extend the assembling of cover 11 fixedly, and the existence of spring 12 has been avoided because of the excessive end face that damages of grafting pressure, and the while has also avoided lock pin 13 to be subject to the situation of external force vibration, metallic sheath 15 is firmly fixed on plastic optical fibre connector on optical fiber, has guaranteed the stability of whole assembly; SC shell 16 and tail pipe 17 form a plastic optical fibre connector containment vessel; plastic optical fibre connector is shielded; make plastic optical fibre connector avoid outside direct injury; extend the serviceable life of plastic optical fibre connector; on while SC lid 16, with the plug-in switch of a resilient pin structure, this switch can be used as location and plastic optical fibre connector and connect the spacing and locking of relevant position between element.Spring 12 is made of metal, and lock pin 13 is made by metal or plastics.During concrete enforcement, plastic optical fibre connector also can be equipped with a tin hat 18, both can protect optical fiber connector, can prevent that again distal optical fiber output terminal from can launch harmfulness radiation.
When these SC plastic joints of optical fibre are applicable to perfluor plastic optical fiber system, because perfluor plastic optical fiber diameter is greater than the silica fibre of widespread use now, be less than again common PMMA plastic optical fiber, so these SC plastic joints of optical fibre are decided to be 1.0mm except lock pin 13 internal orifice dimensions, the internal orifice dimension of spring 12, lock pin outer cover 14, sleeve 15 and tail pipe 17 also needs to do relevant change according to the external diameter of perfluor plastic optical fiber and optical cable.Meanwhile, these SC plastic joints of optical fibre can use with standard SC interface kit.
The SC plastic joints of optical fibre provided by the utility model are according to the difference of tail optical fiber used and insertion core end face; can be divided into several large classes; tail optical fiber is used the SC plastic joints of optical fibre of single-mode fiber to be called SC type single mode plastic optical fibre connector, and tail optical fiber is used the SC plastic joints of optical fibre of multimode optical fiber to be called SC type multimode plastic optical fibre connector; Insertion core end face is that the SC plastic joints of optical fibre of sphere are called the SC/PC plastic joints of optical fibre, insertion core end face is that the SC plastic joints of optical fibre of oblique angle sphere are called the SC/APC plastic joints of optical fibre, and what be wherein applicable to uni-core bidirectional plastic optical fiber system is SC type multimode plastic optical fibre connector.
The utility model provides the spectrophotometric data of the SC plastic joints of optical fibre as follows:
The spectrophotometric data of SC type single mode plastic optical fibre connector:
A) the insertion Sun Hao≤0.35dB of arbitrary plastic optical fibre connector and standard interface (containing repeatability); Hui ripple Sun Hao≤40dB (SC/PC) ，≤60dB (SC/APC).
B) two insertion Sun Hao≤0.5dB that plastic optical fibre connector connects arbitrarily; Return loss >35dB (SC/PC); >58dB (SC/APC).
The spectrophotometric data of SC type multimode plastic optical fibre connector:
A) the insertion Sun Hao≤0.35dB of arbitrary plastic optical fibre connector and standard interface (containing repeatability).
B) two insertion Sun Hao≤0.5dB that plastic optical fibre connector connects arbitrarily.
SC type interface or socket are with respect to loss <0.2dB (single mode), the <0.1dB (multimode) of two SC plastic joints of optical fibre.
The working temperature of the SC plastic joints of optical fibre is :-25 ℃～+ 70 ℃.
The utility model provides the SC plastic material that the joints of optical fibre use and optical fiber cable to guarantee without catabiosis, fire-retardant, and meets environmental requirement.Can stand the required test condition of plastic optical fibre connector.The adhesive glue that making plastic optical fibre connector is used should have no adverse effects to plastic optical fibre connector structure, and its physics, chemistry and optical characteristics should be mated with optical fiber, must not have the situation of infringement plastic optical fibre connector optical property to occur.
The beneficial effects of the utility model are:
The SC plastic joints of optical fibre that the utility model provides, can realize GI plastic optical fiber and with the stable connection of fibre-optic interface device, advance the universal of GI plastic optical fiber.
GI plastic optical fiber has been realized higher transfer rate and bandwidth, uses a fine optical fiber can transmit at a high speed the vast capacity of 10Gbps, and also has the possibility that further improves transmission speed;
Power consumption is low, saves the energy;
Do not produce electromagnetic noise, be not subject to electromagnetic interference influence, zero radiation; To pull line light by 1/3 than common for cable;
Cable diameter is thinner, has promoted the degree of freedom of appearance property and design;
The feature that possesses plastics distinctive " folding constantly ", and knotting or bending do not affect communication efficiency yet, can arbitrarily process, and freely carries out wires design;
Core diameter and optical fiber external diameter can be changed arbitrarily, plastic optical fibre connector cost can be reduced;
Transmission range is long, has overcome the restriction of common plastics optical fiber hundred rice grain pattern letters.
Above content is in conjunction with concrete optimal technical scheme further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. the SC plastic joints of optical fibre, it is characterized in that, comprise that one extends lid, a spring, a lock pin, a lock pin outer cover and a sleeve, described prolongation lid, lock pin, spring and lock pin outer cover are connected in turn, described plastic optical fibre connector also comprises a SC shell and a tail pipe, described SC shell is with plug-in switch, and described tail pipe is surrounded on optical fiber to described lock pin outer cover transitional region.
2. a kind of SC plastic joints of optical fibre as claimed in claim 1, is characterized in that, the lock pin that described plastic optical fibre connector comprises is hollow-core construction, and the diameter of bore of described lock pin hollow-core construction is 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396066.8U CN203414625U (en) | 2013-07-05 | 2013-07-05 | SC type plastic fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396066.8U CN203414625U (en) | 2013-07-05 | 2013-07-05 | SC type plastic fiber connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203414625U true CN203414625U (en) | 2014-01-29 |
Family
ID=49977507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320396066.8U Expired - Fee Related CN203414625U (en) | 2013-07-05 | 2013-07-05 | SC type plastic fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203414625U (en) |
-
2013
- 2013-07-05 CN CN201320396066.8U patent/CN203414625U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20160705 |