CN203658639U - Light unit and light cable employing light unit - Google Patents
Light unit and light cable employing light unit Download PDFInfo
- Publication number
- CN203658639U CN203658639U CN201420001467.3U CN201420001467U CN203658639U CN 203658639 U CN203658639 U CN 203658639U CN 201420001467 U CN201420001467 U CN 201420001467U CN 203658639 U CN203658639 U CN 203658639U
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- Prior art keywords
- unit
- light
- outside
- fibre ribbon
- flexible reinforcement
- Prior art date
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims description 17
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- 239000003063 flame retardant Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 10
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Abstract
The utility model belongs to the cable technology field and particularly relates to a light unit. The light unit is characterized by comprising a fiber band (1), a flexible reinforcement member and a unit sheath (3), wherein the fiber band comprises multiple light guide fibers (11) which are arranged in parallel and a bonding layer (12) for wrapping the light guide fibers, the adjacent light guide fibers do not contact, the flexible reinforcement member is at an outer side of the fiber band, and the unit sheath wraps the fiber band and the flexible reinforcement member. The utility model further discloses a light cable employing the light unit. According to the light unit, a change value of transmission performance of the light guide fibers does not surpass 0.03dB/km when the unit sheath is under the pressure of 4500N/100mm. The light unit is mainly advantaged in that the light unit has excellent anti-side-pressure performance and good product flexibility. The light cable is mainly advantaged in that the light unit can be used repeatedly and is suitable for the high temperature environment.
Description
Technical field
The utility model belongs to technical field of cables, especially relates to a kind of smooth unit and uses the optical cable of this light unit.
Background technology
Along with the propelling that hastens soon of FTTX, the demand of optical cable increases day by day, for this reason, has strengthened research and development and application for optical cable both at home and abroad.Publication No. is that the patent of CN101958162A discloses optoelectronic composite cable, comprise cable core, embossing metal tube and oversheath, embossing metal tube is positioned at outside cable core, oversheath is positioned at outside embossing metal tube, described cable core comprises at least one pair of wire and at least one optical fiber being contained in ferrule that are coated with separately insulation course, also accommodates the fortifying fibre for following described optical fiber in described ferrule; Having solved fortifying fibre increases the effect of tensile strength individually to optical fiber, and the overall tensile strength of cable body is significantly improved.Publication No. is that the patent of CN202917234U discloses optoelectronic composite cable, comprise oversheath, in oversheath, be provided with photoelectricity transmission unit, photoelectricity transmission unit comprises that photoelectricity transmission unit comprises center conductor and is molded over the optical fiber of the outside and coated center conductor of center conductor; Photoelectricity transmission unit is molded over its optical fiber the outside of center conductor, rather than as traditional optoelectronic composite cable by the optical fiber of moulding in advance together with wire stranding, can thoroughly eliminate the problem that the optical fiber that causes due to stranded technique is scrapped.Publication No. is that the patent of CN2916864 discloses optoelectronic composite cable, comprise cable core, water barrier, sheath, be provided with some beam tubes and several signal wires to unit in cable core, signal wire five is to being a stranded unit, form SZ stranded, the polyester belt that signal wire unit outside surface is wrapped moulding; Sheath is the composite rope sheath that extrudes again high density polyethylene with the vertical bag of wrinkle composite steel-plastic belt, and in the time of high temperature or low temperature, optoelectronic composite cable is stable, and waterstop plays good block-water effect.Publication No. is that the patent of CN202258544U discloses optoelectronic composite cable, it comprises optical fiber, loose sleeve pipe, reinforcement, copper conductor and sheath, optical fiber is in loose sleeve pipe, pine sleeve pipe overcoat plastic-coated metal compound belt, plastic-coated metal compound belt outside is fire retardant jacket, in plastic-coated metal compound belt overcoat fire retardant jacket, reinforcement is housed, copper conductor overlaps and has fireprotection layer and insulating sheath successively outward, they are contained in outside reinforcement in fire retardant jacket, in loose sleeve pipe, there is sleeve pipe filling material, therefore it is fire-resistant, high temperature resistant that optoelectronic composite cable has, tool fire protecting performance.Publication No. number is that the patent of CN202615928U discloses optoelectronic composite cable, comprise the oversheath (2) of cable core (1) and parcel cable core (1), cable core (1) comprises wrapping layer (3), in wrapping layer (3), be provided with fiber unit (4), signal wire copper conductor (5), power supply copper conductor (6) and central reinforce member (7), the periphery of sheath (2) is provided with burr (11), the xsect of described burr (11) is square, surface at optical cable arranges burr, reduced the friction between mounting pipe, installation rate is significantly improved.Publication No. is that the patent of CN102290140A discloses optoelectronic composite cable and optoelectronic composite cable assembly; this optoelectronic composite cable 11 has optical fibre core 12 and electric wire 15 in the inner side of sheath 20; optical fibre core 12 is accommodated in the first protection tube 13 that is configured in cross section central authorities; electric wire 15 is configured between the first protection tube 13 and sheath 20, and can be along the circumferential movement of the first protection tube 13.
Above-mentioned composite rope all includes optical fiber and power transmission line or the electric wire for signal transmission, and optical fiber in loose sleeve pipe or be filled with the material of greasy for preventing water one class in loose sleeve pipe, has brought inconvenience to construction separately; In addition, fiber unit is due to stranded together with other loose sleeve pipe or transmission of electricity unit, and power transmission line very easily flattens loose sleeve pipe, causes the deteriorated of optical property; And stranded due to the loose sleeve pipe with fibre ribbon, in the time manufacturing defectiveness, even electrical transmission unit is reusable after stripping cable core, but the loose sleeve pipe of stranded mistake cannot utilize again, can cause very large loss.
Utility model content
In order to address the above problem, object of the present invention discloses a kind of light unit, discloses further the optical cable that this kind of light unit forms.The present invention is achieved through the following technical solutions.
Light unit, is characterized in that it is to be made up of fibre ribbon 1, flexible reinforcement, unit sheath 3; Fibre ribbon, by the many light transmitting fibers 11 placed and envelope fibre-optic tack coat 12 and form of being parallel to each other, is non-touching between adjacent light transmitting fiber; Flexible reinforcement is positioned at the outside of fibre ribbon; Unit sheath envelopes fibre ribbon, flexible reinforcement.
Light unit described in first and second embodiment of the present invention, is characterized in that described flexible reinforcement is positioned at the outside of fibre ribbon, fibre ribbon above and below.
Light unit described in the 3rd embodiment of the present invention, is characterized in that described flexible reinforcement is positioned at the outside of fibre ribbon, i.e. the surrounding in fibre ribbon outside, fibre ribbon above, below, there is flexible reinforcement on the left side, the right side.
Light unit described above, is characterized in that described light transmitting fiber is 2 or 4 or 6 or 8 or 10 or 12 or 18 or 24.
Light unit described above, is characterized in that described light transmitting fiber is single-mode fiber or multimode optical fiber.
Light unit described above, is characterized in that described tack coat is heat reactive resin or ultraviolet-curing resin.
Light unit described above, the material that it is characterized in that described flexible reinforcement is aramid yarn or glass fiber yarn or polyamide staple fibre spun yarn or Polyester Yarns.
Light unit described above, the material that it is characterized in that described unit sheath is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon.
In the 4th embodiment of the present invention, the optical cable that adopts the light unit described in above-mentioned arbitrary embodiment is disclosed, it is characterized in that it by being positioned at central unit sleeve pipe 50, around many stranded power transmission lines of unit sleeve pipe, be coated on insulation course 53 outside power transmission line, be coated on the restrictive coating 55 that protective seam 54 outside insulation course 53 and extrusion molding be coated on outside protective seam and form; Within described smooth unit is positioned at unit sleeve pipe; Described power transmission line is made up of the insulating outer layer 52 that is positioned at the conductor 51 of internal layer and be coated on outside conductor 51.
Optical cable described above, the material that it is characterized in that described insulation course is polyester belt or waterstop or nonwoven fabrics or mica tape.
Optical cable described above, the material that it is characterized in that described unit sleeve pipe is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon or medium density polyethylene or high density polyethylene.
Optical cable described above, the material that it is characterized in that described restrictive coating is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon or medium density polyethylene or high density polyethylene.
Optical cable described above, the sectional area that it is characterized in that described conductor is 0.5 square millimeter to 20 square millimeters.
In light unit in the utility model; because the outside, the light transmitting fiber that flexible reinforcement are arranged in to fibre ribbon are positioned at fibre ribbon; therefore; stronger for fibre-optic resistance to compression protective capability; unit sheath is under the pressure condition that stands 4500N/100mm, and the changing value of fibre-optic transmission performance does not exceed 0.03dB/km.
In optical cable of the present utility model, due to unit sleeve pipe is placed on to central authorities, unit sleeve pipe has neither part nor lot in stranded, and therefore, having produced when abnormal stripping after cable core, the light unit in unit sleeve pipe and unit sleeve pipe still can normally use, and has greatly saved cost; In unit sleeve pipe, only having placed at least one light unit, is dry construction, therefore, and constructability, and be adapted at working under higher temperature.
Therefore, smooth unit of the present utility model has following main beneficial effect: lateral pressure resistant power function admirable, and product flexibility is good; Optical cable of the present utility model has following main beneficial effect: light unit can reuse, and is suitable for hot environment.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embodiment 1 of light of the present invention unit.
Fig. 2 is the cross-sectional structure schematic diagram of Fig. 1.
Fig. 3 is the perspective view of the embodiment 2 of light of the present invention unit.
Fig. 4 is the cross-sectional structure schematic diagram of Fig. 3.
Fig. 5 is the perspective view of the embodiment 3 of light of the present invention unit.
Fig. 6 is the cross-sectional structure schematic diagram of Fig. 5.
Fig. 7 is the cross-sectional structure schematic diagram of a kind of embodiment of the optical cable of the light unit formation of this use embodiment 5.
Embodiment
Ask for an interview Fig. 1 to Fig. 2; Light unit, is characterized in that it is to be made up of fibre ribbon 1, flexible reinforcement 2, unit sheath 3; Fibre ribbon, by 12 light transmitting fibers 11 of placing and envelope fibre-optic tack coat 12 and form of being parallel to each other, is non-touching between adjacent light transmitting fiber; Flexible reinforcement is positioned at the outside of fibre ribbon, fibre ribbon above and below; Unit sheath envelopes fibre ribbon, flexible reinforcement; The upper surface of unit sheath and lower surface are plane.
Ask for an interview Fig. 3 and Fig. 4, and with reference to figure 1 and Fig. 2, light unit, is characterized in that it is to be made up of fibre ribbon 1, flexible reinforcement 2, unit sheath 3; Fibre ribbon, by 12 light transmitting fibers 11 of placing and envelope fibre-optic tack coat 12 and form of being parallel to each other, is non-touching between adjacent light transmitting fiber; Flexible reinforcement is positioned at the outside of fibre ribbon, fibre ribbon above and below; Unit sheath envelopes fibre ribbon, flexible reinforcement; The upper surface of unit sheath and lower surface have formed the groove 4 of direction towards fibre ribbon; Groove 4 can improve the lateral pressure resistant power of unit sheath widely.
Ask for an interview Fig. 5 and Fig. 6, and with reference to figure 3 and Fig. 4, light unit, substantially with embodiment 2, difference is that described flexible reinforcement is positioned at the outside of fibre ribbon, i.e. the surrounding in fibre ribbon outside, fibre ribbon above, below, there is flexible reinforcement on the left side, the right side; Flexible reinforcement by be positioned at fibre ribbon above, flexible reinforcement 2 below and be positioned at the left side of fibre ribbon, the flexible reinforcement 21 on the right side forms.
Certainly, the light unit described in above-mentioned arbitrary embodiment, is characterized in that described flexible reinforcement is positioned at the outside of fibre ribbon; But above being not limited to, below, the left side, the right side.
Certainly, the light unit described in above-mentioned arbitrary embodiment, is characterized in that described light transmitting fiber is 2 or 4 or 6 or 8 or 10 or 12 or 18 or 24.
Certainly, the light unit described in above-mentioned arbitrary embodiment, is characterized in that described light transmitting fiber is single-mode fiber or multimode optical fiber.
Certainly, the light unit described in above-mentioned arbitrary embodiment, is characterized in that described tack coat is heat reactive resin or ultraviolet-curing resin.
Certainly, the light unit described in above-mentioned arbitrary embodiment, the material that it is characterized in that described flexible reinforcement is aramid yarn or glass fiber yarn or polyamide staple fibre spun yarn or Polyester Yarns.
Certainly, the light unit described in above-mentioned arbitrary embodiment, the material that it is characterized in that described unit sheath is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon.
In light unit in the utility model, because the outside, the light transmitting fiber that flexible reinforcement are arranged in to fibre ribbon are positioned at fibre ribbon, therefore, stronger for fibre-optic resistance to compression protective capability, unit sheath is under the pressure condition that stands 4500N/100mm, and the changing value of fibre-optic transmission performance does not exceed 0.03dB/km; Smooth unit of the present utility model has lateral pressure resistant power function admirable, the product flexibility main beneficial effect such as well.
Ask for an interview Fig. 9 and Figure 10, a kind of optical cable, it is characterized in that it by being positioned at central unit sleeve pipe 50, around many stranded power transmission lines of unit sleeve pipe, be coated on insulation course 53 outside power transmission line, be coated on the restrictive coating 55 that protective seam 54 outside insulation course 53 and extrusion molding be coated on outside protective seam and form; Within described unit sleeve pipe, there is the light unit described in above-mentioned arbitrary embodiment; Described power transmission line is made up of the insulating outer layer 52 that is positioned at the conductor 51 of internal layer and be coated on outside conductor 51.
Optical cable described above, the material that it is characterized in that described insulation course is polyester belt or waterstop or nonwoven fabrics or mica tape.
Optical cable described above, the material that it is characterized in that described unit sleeve pipe is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon or medium density polyethylene or high density polyethylene.
Optical cable described above, the material that it is characterized in that described restrictive coating is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon or medium density polyethylene or high density polyethylene.
Optical cable described above, the sectional area that it is characterized in that described conductor is 0.5 square millimeter to 20 square millimeters.
In optical cable of the present utility model, due to unit sleeve pipe is placed on to central authorities, unit sleeve pipe has neither part nor lot in stranded, and therefore, having produced when abnormal stripping after cable core, the light unit in unit sleeve pipe and unit sleeve pipe still can normally use, and has greatly saved cost; In unit sleeve pipe, only having placed at least one light unit, is dry construction, therefore, and constructability, and be adapted at working under higher temperature; Optical cable of the present utility model has following main beneficial effect: light unit can reuse, and is suitable for hot environment.
The utility model is not limited to above-mentioned preferred forms, should be appreciated that design of the present utility model can be by other various forms enforcement utilizations, and they drop in protection domain of the present utility model equally.
Claims (10)
1. smooth unit, is characterized in that it is to be made up of fibre ribbon (1), flexible reinforcement, unit sheath (3); Fibre ribbon by many be parallel to each other place light transmitting fiber (11) and envelope fibre-optic tack coat (12) form, between adjacent light transmitting fiber, be non-touching; Flexible reinforcement is positioned at the outside of fibre ribbon; Unit sheath envelopes fibre ribbon, flexible reinforcement.
2. smooth unit according to claim 1, is characterized in that described flexible reinforcement is positioned at the outside of fibre ribbon, fibre ribbon above and below.
3. smooth unit according to claim 1, is characterized in that described flexible reinforcement is positioned at the outside of fibre ribbon, i.e. the surrounding in fibre ribbon outside, fibre ribbon above, below, there is flexible reinforcement on the left side, the right side.
According to claim 1 to any one light unit claimed in claim 4, it is characterized in that described light transmitting fiber is 2 or 4 or 6 or 8 or 10 or 12 or 18 or 24.
According to claim 1 to any one light unit claimed in claim 4, it is characterized in that described light transmitting fiber is single-mode fiber or multimode optical fiber.
According to claim 1 to any one light unit claimed in claim 4, it is characterized in that described tack coat is heat reactive resin or ultraviolet-curing resin.
According to claim 1 to any one light unit claimed in claim 4, the material that it is characterized in that described flexible reinforcement is aramid yarn or glass fiber yarn or polyamide staple fibre spun yarn or Polyester Yarns.
According to claim 1 to any one light unit claimed in claim 4, the material that it is characterized in that described unit sheath is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon.
9. optical cable, it is characterized in that it by being positioned at central unit sleeve pipe (50), around many stranded power transmission lines of unit sleeve pipe, be coated on insulation course (53) outside power transmission line, be coated on the restrictive coating (55) that protective seam (54) outside insulation course (53) and extrusion molding be coated on outside protective seam and form; Within described unit sleeve pipe, there is claim 1 or claim 2 or smooth unit claimed in claim 3; Described power transmission line is made up of the insulating outer layer (52) that is positioned at the conductor (51) of internal layer and be coated on outside conductor (51).
10. optical cable according to claim 9, the material that it is characterized in that described insulation course is polyester belt or waterstop or nonwoven fabrics or mica tape; The material of described unit sleeve pipe is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon or medium density polyethylene or high density polyethylene; The material of described restrictive coating is Polyvinylchloride or low-smoke non-halogen flame-retardant tygon or medium density polyethylene or high density polyethylene; The sectional area of described conductor is 0.5 square millimeter to 20 square millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001467.3U CN203658639U (en) | 2014-01-02 | 2014-01-02 | Light unit and light cable employing light unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001467.3U CN203658639U (en) | 2014-01-02 | 2014-01-02 | Light unit and light cable employing light unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658639U true CN203658639U (en) | 2014-06-18 |
Family
ID=50925014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420001467.3U Expired - Fee Related CN203658639U (en) | 2014-01-02 | 2014-01-02 | Light unit and light cable employing light unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203658639U (en) |
-
2014
- 2014-01-02 CN CN201420001467.3U patent/CN203658639U/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: 20140618 Termination date: 20190102 |