CN202351462U - Rubber-insulated wire optical cable connector - Google Patents
Rubber-insulated wire optical cable connector Download PDFInfo
- Publication number
- CN202351462U CN202351462U CN2011204443373U CN201120444337U CN202351462U CN 202351462 U CN202351462 U CN 202351462U CN 2011204443373 U CN2011204443373 U CN 2011204443373U CN 201120444337 U CN201120444337 U CN 201120444337U CN 202351462 U CN202351462 U CN 202351462U
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- China
- Prior art keywords
- covered wire
- cable
- optical cable
- wire cable
- rubber
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- Expired - Lifetime
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Abstract
The utility model relates to a rubber-insulated wire optical cable connector. The rubber-insulated wire optical cable connector comprises a tail sleeve for carrying and connecting with the connecting end of an optical cable and a connecting unit, wherein a compression joint ring for fixing the rubber-insulated wire optical cable, a metal base and an insert core structure which is configured by a spring structure and used for being in socket joint with an optical fiber of a cable core of the optical cable are arranged in the connecting unit with a housing and an inner sleeve along the axial direction, and a thermal shrinkage sleeve for mutually fastening the compression joint ring and a sheath of the optical cable is arranged between the tail sleeve and the compression joint ring. According to the rubber-insulated wire optical cable connector and a rubber-insulated wire optical cable connecting structure, disclosed by the utility model, a composition element of the rubber-insulated wire optical cable connector can be stably and tightly fixed with the rubber-insulated wire optical cable without being affected by temperature changes basically, the stability in performance of the optical cable is ensured, the production process flow of the rubber-insulated wire optical cable connector is simultaneously simplified, and the production cost and manufacturing cost of a connecting element are further lowered.
Description
Technical field
The utility model relates to covered wire cable connector and covered wire cable syndeton, applicable but cold junction, tail end optical connector and light wire jumper etc. that indoor circular covered wire cable that be not limited to that Fiber to the home (FTTH) connects.
Background technology
Crucial cable technique is to use terminal optic cable and connection device, distributing cabinet and optical information unit at the terminal in the engineering that Fiber to the home (FTTH).Wherein modal terminal optic cable is a kind of covered wire cable of flat structure; This flat structure optical cable has the strong and inexpensive advantage of anti-side pressure; But the connector that is attached thereto is owing to exist the not adaptive phenomenon of size usually; Mostly the reinforcing element of connector is metal reinforcement in addition; Can't link to each other with SC (plug-in), ST (bayonet type), FC (screw thread rotation formula) Connection Element of routine,, still be difficult to guarantee the tensile strength of connector even be employed in the method for repeatedly riveting behind the metal lock pin of connector.Chinese patent ZL 201020545435.1 discloses a kind of circular configuration Fiber to the home inside cable, and its structure is for being covered fire proofing outside cable core, and size is identical with conventional tight tube fiber; Can the better protection transmission medium; The optical cable contour structures is sub-circular, is more suitable for the sealing of tail cover, and the reinforcement in this optical cable is a non-metal yarn simultaneously; Like materials such as aramid fibers, this structure is more suitable for the use element as connector.Nonetheless, this optical cable is when being connected with traditional covered wire cable connector, because the sheath material of optical cable can't keep with the hardware of connector combining closely, phenomenon such as when appearance temperature changes, still can occur becoming flexible, be prone to come off.
The maximum variation of optical-fiber network was a structure of in the networking, terminal, having introduced PON (passive optical-fiber network) during Fiber to the home (FTTH).In this EPON, light wire jumper (two ends have the optical cable of connector) is one of significant components with tail optical fiber (end has the optical cable syndeton of connector).In terminal network; The use amount of light wire jumper and tail optical fiber is very big; Like movable cold junction or the tail optical fiber that often adopts factory to mill at place, optical information unit; At outdoor optical cable with go into the light wire jumper in the distributing cabinet between the building rubber-insulated wire, other light device two ends also adopt the light wire jumper to connect, and all need adopt the light wire jumper between optical information unit and terminal photoelectric conversion device (ONU) etc.So just greatly increased light wire jumper or the connector cost weight in the FTTH optical-fiber network, therefore, a kind of optical fiber cable termination Connection Element and light wire jumper product inexpensive and dependable performance are very important to the popularization of FTTH.
Common optical connector is made up of multiple elements, and comprises shell, interior cover, lock pin, spring, metab, big crimp rings, little crimp rings and tail cover etc.Wherein the effect of the big crimp rings reinforcing element that is to use specialized equipment will tightly overlap flexible optical cable is fixed on the metal tailstock, with mechanical strength and the environmental resistance that keeps whole covered wire cable interface unit.The effect of little crimp rings is that cable jacket is crimped on the big crimp rings, makes the optical cable reinforcement stressed evenly.But this version and production technology are not suitable for conventional covered wire cable.To adopt naked fibre be transmission medium because conventional covered wire cable is general, and the metal reinforcement in the covered wire cable is difficult to be crimped on the metal tailstock, even if adopt the covered wire cable like non-metal reinforcement members such as FRP or GRP also to have same problem.Though producer is arranged through increasing the mode of big crimp rings length; The crimping area that strengthens between rear end and optical cable protective layer guarantees crimp strength; But crimping acts directly on covered wire cable flame-retardant polyolefin sheathed crimp rings like this; Rather than the suffered acting force of connector is applied directly on the optical cable reinforcement, connector is difficult to still guarantee that the stretching resistance of industry 50N requires (the power value of industry standard requires).A large amount of pilot productions has also proved this point, if compress big crimp rings and cable jacket, can make the crimp force between them excessive, and optical fiber all can occur little curved in crimp rings inside and the optical cable place of compressing; And if the crimp force that should locate is not enough, then mechanical property will be difficult to guarantee, thereby reduce the serviceable life and the reliability of the joints of optical fibre, also be difficult to ensure simultaneously the transmission performance under the hot-cool environment.When variation of ambient temperature, snap-in force changes or optical cable deformation discharges, and also can cause tensile force to descend or optical fiber micro-bending, produces certain additional attenuation.Therefore there is the technological hidden danger of many places in traditional connector.
The utility model content
To above-mentioned situation; The utility model provides applicable but has been not limited to the connector of covered wire cable; Can make the element and the optical cable of covered wire cable connector stably closely fixing, and can not be acted upon by temperature changes, guarantee the stability of properties of optical fiber cable; Also simplify the production procedure of connector simultaneously, and reduce the production cost and the manufacturing cost of Connection Element.
A kind of typical structure of the utility model covered wire cable connector; Be to have tail cover and the linkage unit that is used to accept the optical cable link; In the linkage unit that has shell and interior cover; Be provided with the crimp rings, metab of fixing covered wire cable vertically and, between tail cover and crimp rings, be provided with the mutual fastening heat-shrinkable T bush of crimp rings and cable jacket through the lock pin structure that is used for socket joint optical cable core optical fiber of spring structure configuration.That is: the covered wire cable connector of the utility model; Its basic structure still adopts the element of conventional optical connector; Difference has been to cancel and has been used for the little crimp rings of crimping flexible optical cable sheath on big crimp rings, and increases and the fastening bonding heat-shrinkable T bush of covered wire cable sheath at big crimp rings afterbody.Because heat-shrinkable T bush is to be made behind cross-linking radiation by polyolefine material to form; Itself can have good cohesive strength with the covered wire cable sheath that is all the polyolefin material; Very good bonding strength is also arranged when bonding with basic crimp rings for metal material simultaneously; Therefore the bonding physical strength of its generation is far above crimp strength that crimping produced; And in quite wide temperature range, this bonding force is more stable all the time, therefore can guarantee the bonding strength and the pulling strengrth of crimp rings and rubber-insulated wire sheath better.
For the covered wire cable connector is contacted with covered wire cable more closely, described covered wire cable is preferably circular covered wire cable, like the optical cable of above-mentioned ZL 201020545435.1.The covered wire cable of this structure is for to be coated with fire proofing outside cable core, size is identical with conventional tight tube fiber, can the better protection transmission medium, and the optical cable contour structures is sub-circular, is more suitable for the sealing of tail cover.
Because in covered wire cable, be provided with the aramid fiber reinforcement structure of extending along its length direction, the covered wire cable of this structure is more suitable for carrying out pressing with the covered wire cable connector of the utility model and is connected.The covered wire cable connector of the utility model can have good transmission performance after the technology of milling, insert loss less than 0.3dB.Therefore can replace traditional in the optical information unit of FTTH termination, linking to each other and expensive cold junction (or title mechanical connection head) that is connected with covered wire cable.Adopt the covered wire cable connector cost of this structure to be merely about 30% of the cold splicing ear link cost of tradition employing, economy highly significant.
When the transmission cable that is connected itself is said circular covered wire cable,, can also adopt another kind to have more the optical connector connection of broad applicability except that making it in the above described manner directly with this linkage unit is connected.This optical connector has tail cover and the linkage unit that is used to accept the optical cable link equally; In the linkage unit that has shell and interior cover; Be provided with the crimp rings, metab of fixing covered wire cable vertically and through the lock pin structure that is used for socket joint covered wire cable cable core optical fiber of spring structure configuration; Between tail cover and crimp rings, be provided with crimp rings and the mutual fastening heat-shrinkable T bush of cable jacket; The link of covered wire cable extends outside the tail cover, and is socketed with and is used for losing the heat-shrinkable T bush that cable is connected with unofficial biography connecting the end.Said here unofficial biography are lost cable and are promptly needed the transmission cable through this connector connection, both can be above-mentioned circular covered wire cables, also can be the transmission cables of other form and/or cross sectional shape.By tail optical fiber or the wire jumper that this structure forms, optical fiber wherein and unofficial biography are lost between the optical fiber of cable can adopt welding structure, to guarantee better strength of joint.The hot melt connecting portion of losing cable optical fiber with unofficial biography at the optical fiber of said covered wire cable is provided with heat-shrinkable T bush, can make the optical fiber of covered wire cable have better transmission property and strength of joint, littler decay.
Further, in above-mentioned covered wire cable extends the heat-shrinkable T bush of end, preferably can also be provided with and strengthen structure like spun glass etc. along the optical cable bearing of trend.
Test is learnt; The covered wire cable connector of the utility model can make the element of covered wire cable connector and covered wire cable stably closely fix; And can not be acted upon by temperature changes basically; Guarantee the stability of properties of optical fiber cable, also simplified the production procedure of covered wire cable connector simultaneously, and reduced the production cost and the manufacturing cost of Connection Element.
Below through by the embodiment of accompanying drawing illustrated embodiment, the foregoing of the utility model is remake further detailed description.But should this be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following instance.Do not breaking away under the above-mentioned technological thought situation of the utility model, various replacements or change according to ordinary skill knowledge and customary means are made all should be included in the scope of the utility model.
Description of drawings
Fig. 1 is the cut-open view of a kind of covered wire cable connector of the utility model.
Fig. 2 is the decomposition texture synoptic diagram of Fig. 1.
Fig. 3 is the cut-open view of the another kind of covered wire cable syndeton of the utility model.
Embodiment
As depicted in figs. 1 and 2; In the covered wire cable connector construction of the utility model; Have the tail cover 12 and the linkage unit that are used to accept the optical cable link, in the linkage unit that has shell 5 and interior cover 6, be provided with fixedly crimp rings 10, the metab 9 of covered wire cable 13 and the lock pin structure 7 that is used for socket joint covered wire cable cable core optical fiber 16 that disposes through spring structure 8 vertically; Between tail cover 12 and crimp rings 10, be provided with the mutual fastening heat-shrinkable T bush 11 of crimp rings 10 and cable jacket; Wherein said covered wire cable 13 is circular covered wire cable, and its size is identical with conventional tight tube fiber, can the better protection transmission medium; The contour structures of optical cable is sub-circular, is more suitable for the sealing of tail cover.
Contrast test shows, under 23 ℃ test condition, the crimp force value of crimp rings is merely about 50% of pyrocondensation bonding force in the utility model connector in traditional connector, and raises with temperature, and this numerical value also will reduce; Under 60 ℃ of conditions, the crimp force of traditional connector is very little, and crimp rings and covered wire cable sheath can separate easily.And in the utility model connector and between bonding crimp rings 10 of heat-shrinkable T bush 11 and covered wire cable 13 sheaths enough physical strengths and dimensional stability are arranged still.
Shown in Figure 3 is the structure of the another kind of covered wire cable connector of the utility model, can be used for forming tail optical fiber or wire jumper.It has and Fig. 1 and the same basic structure of Fig. 2; The link that is covered wire cable 13 wherein extends outside the tail cover 12; Be socketed with and be used for losing the heat-shrinkable T bush (15) that cable 17 (covered wire cable) is connected connecting the end, and optical fiber 16 and the optical fiber 18 that unofficial biography are lost cable 17 that will stretch out the covered wire cable 13 of tail cover 12 carry out welding and is connected to form FTTH (Fiber to the home) terminal transmission structure with the unofficial biography of circular rubber-insulated wire or other form.In heat-shrinkable T bush 15, also be provided with the reinforcement structure (not shown) that constitutes along the spun glass of optical cable bearing of trend, have better transmission property and strength of joint, littler decay to guarantee optical fiber.Heat-shrinkable T bush 15 heating-up temperatures are roughly 120 ℃, and be not shorter than 40 seconds heat time heating time.Optical fiber 16 in the covered wire cable syndeton of the utility model and unofficial biography are lost connection tension force between the optical fiber 18 in the cable 17 greater than 10N like this, and fibre junction point place can not produce additional attenuation, satisfy in the optical-fiber network related request to final connection, connection.
Claims (5)
1. covered wire cable connector; Have the tail cover (12) and the linkage unit that are used to accept the optical cable link; In the linkage unit that has shell (5) and interior cover (6); Be provided with the crimp rings (10), metab (9) of fixing covered wire cable (13) vertically and through the lock pin structure (7) that is used for socket joint covered wire cable cable core optical fiber (16) of spring structure (8) configuration, it is characterized by and between tail cover (12) and crimp rings (10), be provided with crimp rings (10) and the mutual fastening heat-shrinkable T bush (11) of cable jacket.
2. covered wire cable connector as claimed in claim 1, it is characterized by described covered wire cable (13) is circular covered wire cable.
3. covered wire cable connector; Have the tail cover (12) and the linkage unit that are used to accept the optical cable link; In the linkage unit that has shell (5) and interior cover (6); Be provided with the crimp rings (10), metab (9) of fixing covered wire cable (13) vertically and through the lock pin structure (7) that is used for socket joint covered wire cable cable core optical fiber (16) of spring structure (8) configuration; It is characterized by and between tail cover (12) and crimp rings (10), be provided with crimp rings (10) and the mutual fastening heat-shrinkable T bush (11) of cable jacket; The link of covered wire cable (13) extends outside the tail cover (12), and is socketed with and is used for losing the heat-shrinkable T bush (15) that cable (17) is connected with unofficial biography connecting the end.
4. covered wire cable connector as claimed in claim 3 is characterized by in described heat-shrinkable T bush (15) and is provided with along the reinforcement structure of optical cable (13) bearing of trend.
5. covered wire cable connector as claimed in claim 4, it is characterized by described reinforcement structure is glass fibre structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204443373U CN202351462U (en) | 2011-11-11 | 2011-11-11 | Rubber-insulated wire optical cable connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204443373U CN202351462U (en) | 2011-11-11 | 2011-11-11 | Rubber-insulated wire optical cable connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351462U true CN202351462U (en) | 2012-07-25 |
Family
ID=46540456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204443373U Expired - Lifetime CN202351462U (en) | 2011-11-11 | 2011-11-11 | Rubber-insulated wire optical cable connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630980A (en) * | 2013-10-29 | 2014-03-12 | 蔡文龙 | Manufacturing method for movable connector of rubber-covered wire optical cable |
| CN104317013A (en) * | 2014-10-30 | 2015-01-28 | 成都康特电子高新科技有限责任公司 | Tensile-resistant optical jumper based on radio and television network system |
| CN108802910A (en) * | 2017-04-28 | 2018-11-13 | 中天海洋系统有限公司 | Optical connector |
-
2011
- 2011-11-11 CN CN2011204443373U patent/CN202351462U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630980A (en) * | 2013-10-29 | 2014-03-12 | 蔡文龙 | Manufacturing method for movable connector of rubber-covered wire optical cable |
| CN104317013A (en) * | 2014-10-30 | 2015-01-28 | 成都康特电子高新科技有限责任公司 | Tensile-resistant optical jumper based on radio and television network system |
| CN108802910A (en) * | 2017-04-28 | 2018-11-13 | 中天海洋系统有限公司 | Optical connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |