CN100386824C - Multimedia combination cable for elevator - Google Patents
Multimedia combination cable for elevator Download PDFInfo
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- CN100386824C CN100386824C CNB2005100294519A CN200510029451A CN100386824C CN 100386824 C CN100386824 C CN 100386824C CN B2005100294519 A CNB2005100294519 A CN B2005100294519A CN 200510029451 A CN200510029451 A CN 200510029451A CN 100386824 C CN100386824 C CN 100386824C
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- combination cable
- grid line
- conductor
- elevator according
- high density
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Abstract
The present invention discloses a multimedia combination cable for elevators, which comprises symmetrical cables for data communication, a braid ply with high density, power cords, reinforcing pieces, sheaths, and an assembly outer layer of voltage cords and the reinforcing pieces, wherein the braid ply with high density is covered on the outer layer of the data cables, the reinforcing pieces are arranged between the network cords and the power cords, and the sheaths are arranged on the network cords. In the present invention, the braid ply with high density is arranged outside the network cords by the symmetrical cables for data communication, so that external electromagnetic interference is effectively prevented, and the accuracy of data communication is ensured; the reinforcing pieces are formed by Kevlar fibers with inner layers, so that the intensity is improved; twisted wires are adopted as conductors, so that the softness of wires is enhanced. The present invention applies traditional high-speed data communication cables to elevators, shielding layers made of high-density metal can be arranged, conventional reinforcing pieces made of steel wires are removed, soft and light Kevlar fibers with high intensity are adopted, and other wires and cords are combined together, so that the flexibility of wiring is enhanced.
Description
Technical field
The application relates to a kind of cable, relates in particular to the escalator band screen data communication symmetrical cable of high-performance data transmission usefulness and the combination cable of power line.
Background technology
Multimedia messages in the existing elevator transmits, and mainly uses hard disk and dvd playback, also have the more emerging forms of broadcasting of using now, but it is effective all not adopt LAN Information to transmit, more timely and easy care.But, because the elevator every day of repeatedly reciprocating motion up and down makes conventional grid line can't bear its abominable environment for use and mode.
Summary of the invention
At the problems referred to above, the present invention proposes a kind of data communication symmetrical cable and combination cable of constituting of power line and sheath by band shielding, adds the high density braid in the outside of grid line, effectively prevents outside electromagnetic interference, guarantees the correctness of transfer of data; Stiffener adopts the Kafra fiber of quilt in the band to constitute, and has improved intensity; Each conductor all adopts twisted wire, has improved the soft degree of wire rod.
The present invention is broken through on structure, traditional high-speed data communications cables is applied in escalator, and can have the high desnity metal screen, abandoned the steel wire reinforcement of conventional use, it is still very high to use intensity instead, but softer lighter Kafra fiber, and other line combined the flexibility when having increased wiring.Mechanical performance and the requirement of electric property and GB 5023.6 uses cable about escalator the related request of EIA/telecommunications industry association EIA/TIA-568B.2 had both been satisfied, also satisfy the desired fire protecting performance in American insurance merchant laboratory (UL), have advantage easy to use, that be convenient to lay.
Description of drawings
Below, with reference to accompanying drawing, for those skilled in the art that, from detailed description of the present invention, above and other objects of the present invention, feature and advantage will be apparent.
Fig. 1 is a cutaway view of the present invention.
Embodiment
As shown in Figure 1, elevator of the present invention comprises the special-purpose cable that mixes of escalator combination of grid line 10 and power line 20 with the multi-media network cable.
Wherein, grid line 10 is to add a high density braid 103 in the periphery of the high-speed data cable that is added heart yearn 101 that insulating barrier forms and 102 combinations of cable inner sheath by stranded conductor, thereby constitute and one surpass five class grid lines, this grid line reaches the electric property requirement of strand CAT5E UTP cable among the EIA/TIA-568B, can satisfy the stranded requirement that surpasses five class grid lines.The centre of above-mentioned grid line 10 and power line 20 is provided with one and adds the reinforcement 30 that sheath is formed by Kafra fiber, and the three is combined into one, and coats one deck squash type oversheath 40 at last again, has so just formed escalator special combination cable of the present invention.
Wherein, the conductor of the heart yearn in the high-speed data communications cables is to be made by stranded conductor; The insulating barrier of heart yearn is made by high density polyethylene (HDPE) (HDPE) material; Two heart yearns of twisted pair wire are the twisting shape, and four pairs of lines all adopt 20～60% back twist technology; The internal layer sheath is made by polyvinyl chloride (PVC) material; The inner sheath outside coats one deck high desnity metal screen, and density reaches more than 95%, effectively intercepts outside electromagnetic interference, guarantees the correctness of transfer of data.
Sheath 40 adopts to aim at and is fit to the PVC sizing material that the escalator cable uses.At aspect of performances such as wear-resisting, bendings excellent performance is arranged all, guaranteed the normal use under the escalator rugged environment.
High-speed data communications cables of the present invention has five important unit for electrical property parameters: impedance, decay, electromagnetic interference, return loss and cross-talk etc. have taken into full account five equilibrium when design.Wherein, impedance is a parameter the most basic in the electric property, and it is by conductor lines footpath, two conductor centre-to-centre spacing, these three the parameter decisions of insulative dielectric constant, and not matching of any impedance all can cause the error of final acknowledge(ment) signal.We the time have taken into full account the influence of these three factors in design, and the conductor lines footpath is big, and low cut can be got well, but cost raises, and finish line footpath is bigger than normal; The conductor lines little decay meeting in footpath is influenced.Considering when producing the different and tension force of pitch, inconsistent can to produce each line different and influence impedance to two conductor centre-to-centre spacing, go out different insulated wire footpaths according to different multiple twin pitch design, the right resistance value of every line is controlled at about 100 ± 15Ohm behind the assurance finished product.
Decay is divided into conductor decay and diectric attenuation two parts, and the conductor decay is relevant with resistance, so we adopt oxygen-free copper or hypoxemia copper product, makes resistance reach minimum; Insulating material is selected high density polyethylene (HDPE) (HDPE) material for use, all is the smaller material of dielectric constant and dielectric loss angle.
One of wire rod superior function of the present invention is embodied on the anti-electromagnetic interference.Coated one deck high-density metal braid 101 by the outside in it, can effectively hinder outside electromagnetic interference, adopted type of weave, anti-bending ability is good.
Return loss is subjected to the influence of input impedance, because and load impedance do not match or make in the inhomogeneous point in cycle, and the reflection that produces signal, input impedance is fluctuateed up and down at characteristic impedance value, the energy of reflection aggravates along with the increase of frequency, even can produce the sudden change significantly of return loss.Adopted the pre-back twist technology of pair twist in the design, eliminated the influence of periodic inconsistent generation, improved the stability of input impedance, thereby optimized return loss input impedance.
The front provides the description to preferred embodiment, so that any technical staff in this area can use or utilize the present invention.Various modifications to these embodiment are conspicuous to those skilled in the art, can be applied to other embodiment to total principle described here and not use creativeness.Thereby, the embodiment shown in the present invention will be not limited to here, and the wide region of principle that should disclose and new feature according to meeting here.
Claims (9)
1. multimedia combination cable for elevator comprises:
Grid line and high density braid, described high density braid is coated on described grid line skin;
Power line;
Reinforcement is arranged between described grid line and the power line, and described reinforcement adopts Kafra fiber;
Inner sheath is arranged between described grid line and the described braid;
Oversheath is arranged on the assembly skin of described grid line, power line and reinforcement.
2. multimedia combination cable for elevator according to claim 1 is characterized in that,
Described high density braid is a high density aluminum-magnesium alloy wire braid.
3. multimedia combination cable for elevator according to claim 1 and 2 is characterized in that,
Every heart yearn system of described grid line is made up of conductor and the insulating barrier that is coated on the conductor outer surface, and described conductor adopts stranded conductor.
4. multimedia combination cable for elevator according to claim 3 is characterized in that,
Through wire drawing and stranded the making of annealing, the conductor specification is a stranded conductor to the conductor of described grid line by hypoxemia copper or oxygenless copper material.
5. multimedia combination cable for elevator according to claim 3 is characterized in that,
The insulating barrier of described grid line is made by high-density polyethylene material.
6. multimedia combination cable for elevator according to claim 3 is characterized in that,
Two heart yearns of the twisted pair wire of described grid line are the twisting shape, and 4 pairs of lines all adopt 20～60% back twist technology.
7. multimedia combination cable for elevator according to claim 1 is characterized in that,
Described inside and outside sheath is made by pvc material.
8. multimedia combination cable for elevator according to claim 2 is characterized in that,
The coating density of described high density aluminum-magnesium alloy wire braid is more than 95%.
9. multimedia combination cable for elevator according to claim 1 is characterized in that,
The skin of described reinforcement adopts the PVC material, and 4 Kafra fibers are set in the middle of it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100294519A CN100386824C (en) | 2005-09-07 | 2005-09-07 | Multimedia combination cable for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100294519A CN100386824C (en) | 2005-09-07 | 2005-09-07 | Multimedia combination cable for elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1737951A CN1737951A (en) | 2006-02-22 |
| CN100386824C true CN100386824C (en) | 2008-05-07 |
Family
ID=36080716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100294519A Expired - Fee Related CN100386824C (en) | 2005-09-07 | 2005-09-07 | Multimedia combination cable for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100386824C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419921C (en) * | 2006-05-30 | 2008-09-17 | 珠海宇讯同轴电缆有限公司 | Electric power coaxial cable |
| CN103236297B (en) * | 2012-04-12 | 2016-08-10 | 江苏亨通线缆科技有限公司 | Super-flexible indoor high-speed data cable |
| CN104751959B (en) * | 2013-12-25 | 2018-01-09 | 深圳市联嘉祥科技股份有限公司 | A kind of high definition elevator monitoring cable and its manufacture method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042997U (en) * | 1988-04-21 | 1989-08-16 | 湖南省衡阳电缆厂 | 15 kv. high-frequency communication cable |
| US5384430A (en) * | 1993-05-18 | 1995-01-24 | Baker Hughes Incorporated | Double armor cable with auxiliary line |
| US5448669A (en) * | 1992-03-24 | 1995-09-05 | At&T Corp. | Hybrid communications cable for enhancement of transmission capability |
| CN2404196Y (en) * | 1999-12-29 | 2000-11-01 | 江苏宝胜集团有限公司 | Data and image transmission comprehensive cable |
| CN1405594A (en) * | 2001-08-02 | 2003-03-26 | 富士康(昆山)电脑接插件有限公司 | Stripe-shape optical cable with laminate structure |
| CN2543186Y (en) * | 2002-01-23 | 2003-04-02 | 李林 | Composite cable for network twisted line and telephone special line |
| CN2580566Y (en) * | 2002-09-23 | 2003-10-15 | 浙江天屹网络科技股份有限公司 | Digital communication combined cable |
| CN2615828Y (en) * | 2003-05-09 | 2004-05-12 | 扬州亚光电缆有限公司 | Flat cable |
| CN1560297A (en) * | 2004-03-02 | 2005-01-05 | 周贤言 | Aluminium magnesium alloy wire for cable braided shield and production method thereof |
-
2005
- 2005-09-07 CN CNB2005100294519A patent/CN100386824C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042997U (en) * | 1988-04-21 | 1989-08-16 | 湖南省衡阳电缆厂 | 15 kv. high-frequency communication cable |
| US5448669A (en) * | 1992-03-24 | 1995-09-05 | At&T Corp. | Hybrid communications cable for enhancement of transmission capability |
| US5384430A (en) * | 1993-05-18 | 1995-01-24 | Baker Hughes Incorporated | Double armor cable with auxiliary line |
| CN2404196Y (en) * | 1999-12-29 | 2000-11-01 | 江苏宝胜集团有限公司 | Data and image transmission comprehensive cable |
| CN1405594A (en) * | 2001-08-02 | 2003-03-26 | 富士康(昆山)电脑接插件有限公司 | Stripe-shape optical cable with laminate structure |
| CN2543186Y (en) * | 2002-01-23 | 2003-04-02 | 李林 | Composite cable for network twisted line and telephone special line |
| CN2580566Y (en) * | 2002-09-23 | 2003-10-15 | 浙江天屹网络科技股份有限公司 | Digital communication combined cable |
| CN2615828Y (en) * | 2003-05-09 | 2004-05-12 | 扬州亚光电缆有限公司 | Flat cable |
| CN1560297A (en) * | 2004-03-02 | 2005-01-05 | 周贤言 | Aluminium magnesium alloy wire for cable braided shield and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1737951A (en) | 2006-02-22 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 2010 805 No. 5 Luopu Road, Anting Town, Jiading District, Shanghai Patentee after: Lingxun Wire Industry (Shanghai) Co.,Ltd. Address before: 2010 805 No. 5 Luopu Road, Anting Town, Jiading District, Shanghai Patentee before: SHANGHAI LTK CABLE IND Co.,Ltd. |
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| 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: 20080507 |