CN201877153U - Elevator cable comprising constant-capacitance symmetrical core wire - Google Patents
Elevator cable comprising constant-capacitance symmetrical core wire Download PDFInfo
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- CN201877153U CN201877153U CN2010206080558U CN201020608055U CN201877153U CN 201877153 U CN201877153 U CN 201877153U CN 2010206080558 U CN2010206080558 U CN 2010206080558U CN 201020608055 U CN201020608055 U CN 201020608055U CN 201877153 U CN201877153 U CN 201877153U
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- heart yearn
- conductors
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- core wire
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Abstract
The utility model discloses an elevator cable comprising a constant-capacitance symmetrical core wire. The cable comprises at least one symmetrical core wire, wherein the symmetrical core wire consists of two parallel conductors and an insulating layer coated outside the two conductors; the insulating layer fully isolates the two conductors; the insulating layer between the two conductors is jointed so as to form a figure-8-shaped cross section structure; and the insulating symmetrical core wire is twisted at a regular twist pitch. The elevator cable is very suitable for elevators with high requirements on signal quality, has stable capacitance, good primary and secondary transmission parameters, controllable electric performance, low electromagnetic interference and stable signal quality.
Description
Technical field
The utility model relates to a kind of elevator cable that contains constant capacitance symmetry heart yearn, belongs to the cables manufacturing technical field.
Background technology
Traditional elevator cable, essence are electric control cables, and its break-make control elevator by electric current starts and stops.Along with the development of technology, elevator industry is included into the new technology new product of other industry in gradually, and the 26S Proteasome Structure and Function of elevator cable is enriched gradually.Now, in the elevator cable structure,, increase successively and adopted new unit such as communication cable, audio frequency and video cable, network cable and optical fiber except that still keeping the electric control cable.Wherein, the transmission medium of communication cable, audio frequency and video cable, network cable is a metallic conductor, and the transmission medium of optical fiber is a glass fibre.In the cable of metallic conductor transmission medium, communication cable, network cable belong to symmetrical cable, and the audio frequency and video cable belongs to coaxial cable.
The core of symmetrical cable is symmetrical heart yearn.The signal code of symmetry heart yearn transmission is the pulsation alternating current, the total quality of the transmission quality decision symmetrical cable of symmetrical heart yearn.In symmetrical heart yearn, two thoroughly do away with edge lead A and B, actual is exactly the capacitor of one group of pole plate endless, when current phase is in 0～180 °, capacitor A pole plate positively charged, B pole plate are electronegative, when current phase was in 181～360 °, capacitor A pole plate was electronegative, B pole plate positively charged, and next cycle is so circulation also.When capacitor loops is constantly charged, in the discharge process, to cause that electric components such as other contiguous symmetrical heart yearn and screen produce the induction of electricity and magnetic, A, the electric property of B lead own and other electric property that causes by A, B lead, the transmission quality of comprehensively having formed the elevator symmetrical cable, these electric properties comprise primary transmission parameter, secondary transmission parameter, interference parameter, secondary interference parameter etc.Wherein, primary transmission parameter comprises: effective resistance, inductance, electric capacity, insulation conductance, secondary transmission parameter comprises: attenuation constant, phase-shift constant, wave impedance, electromagnetic wavelength and transmission speed, one time interference parameter comprises: electromagnetic coupled, coupling impedance, the secondary interference parameter comprises: loop cross-talk, to a cross-talk.
In above electric property, symmetrical circuit electric capacity and variation thereof will cause the variation of many electric parameters.Article one, the outstanding symmetrical circuit cable of performance not only requires electric capacity to meet the design code requirement, and is installing, in the use, remaining stable and no change, variation is less maybe can expect.Existing symmetrical circuit cable on the market has all been done many useful explorations at aspects such as performance expection, material selection, structure arrangement, manufacturing process, use rules, has obtained the progress of many brilliances, and the prosperity in elevator market today has just been arranged.But, a very important details is arranged, be that the traditional elevator cable is not noticed, that is: two of (1) symmetry thoroughly do away with the edge lead, in the stranding manufacturing, check, packing, transportation, install, in the use, can not obtain effectively fixing, as dilatory, crooked, reel, exert pressure, during rivet clasp, become tight sometimes between the two eradication edge leads, sometimes loose, sometimes adjacent, sometimes unclamp, its conductor centre-to-centre spacing is the capacitor plate distance or increases, or reduce, so, in the longitudinal direction, cable capacitance can not continue to remain on the stable numerical value, or reduces, or increase.(2) when the situation of (1) takes place, another kind of situation also is accompanied by generation, promptly two of symmetry thoroughly do away with the mutual slippage of edge lead, lay misplaces uniformly, cause on the cable length direction, the position lay that has is close, and the position lay that has is rare, and it is no longer all even regular that electric field and Distribution of Magnetic Field become.
When above situation took place, the elevator cable changes in capacitance caused once reducing with secondary transmission parameter, once worsens more with the secondary interference parameter, and they have adverse effect to the elevator cable signal transmission quality.
Therefore, the unsteadiness of the centre-to-centre spacing in the traditional elevator cable symmetry heart yearn between two insulated conductors, cause the unsteadiness of elevator cable electric capacity, cause the reduction of elevator cable electrical property, the two constitutes technical contradiction, how solving this contradiction, is the important topic that elevator is already pursued technological progress, lifting product function and use value.
Summary of the invention
The utility model provides a kind of elevator cable that contains constant capacitance symmetry heart yearn, and purpose is to be the variable effect symmetrical cable electric capacity that solves symmetrical cable pair twist return conductors centre-to-centre spacing and the problem of other electric parameter.
For achieving the above object, the technical solution adopted in the utility model is: a kind of elevator cable that contains constant capacitance symmetry heart yearn, described cable comprises a symmetrical heart yearn at least, this symmetry heart yearn is made up of the two parallel conductors insulating barrier outer with being coated on this two conductor, and described insulating barrier is separated two conductors fully, insulating barrier between two conductors constitutes disjunctor, forms 8 font cross section structures with this.
In the such scheme, described symmetrical heart yearn is regular virtual center axle around symmetrical heart yearn with left-hand and reverses, and extends along the cable length direction.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because the employing of 8 font disjunctor concentric circles insulation systems, it is constant that symmetrical circuit two conductor centre-to-centre spacing among the present invention continue to keep, in the stranding manufacturing, check, packing, transportation, install, in the use, even there have to be dilatory, crooked, reel, exert pressure, rivet clasp or the like applies any applied external force to cable, conductor centre-to-centre spacing is that the pole plate distance does not increase, do not reduce, so, in the longitudinal direction, cable capacitance continues to remain on the stable numerical value, from near-end to far-end cable total length, each strand also keeps constant to cable capacitance, thereby primary transmission parameter, secondary transmission parameter, an interference parameter, electrical properties such as secondary interference parameter keep constant simultaneously, and the cable signal transmission quality can obtain expection and ensure.
2, because the employing of 8 font disjunctor concentric circles insulation systems, symmetrical circuit two insulation heart yearns among the present invention, in stranding manufacturing, check, packing, transportation, installation, use, slippage does not take place in relative position, lay does not change, and on the cable length direction, it is close some position lay not occur, the phenomenon that other position laies are rare, electric field and Distribution of Magnetic Field are all even regular.
3, electric capacity of the present invention is stable, and once good with secondary transmission parameter, electric property is controlled, and electrical Interference is low, and signal quality is stable.
Description of drawings
Accompanying drawing 2 is for containing the round elevator cable schematic diagram of constant capacitance symmetry heart yearn;
Accompanying drawing 3 is a constant capacitance symmetry heart yearn communication cable cell schematics;
Accompanying drawing 4 is a constant capacitance left-and-right-hand core spider lines cable cell schematics;
Accompanying drawing 5 is a constant capacitance symmetry heart yearn tool phase-splitting shielding network cable cell schematics;
In the above accompanying drawing, 1, the power cables unit; 2, signal of communication cable unit; 3, audio frequency and video cable unit; 4, optical cable unit; 5, network signal cable unit; 6, control cable unit; 7, hold the lotus unit; 8, oversheath; 9, conductor; 10, insulation; 11, phase-splitting shielding; 12, first shielding always; 13, second shielding always; 14, first inner sheath; 15, second inner sheath.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: the elevator cable that contains constant capacitance symmetry heart yearn
Shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, the elevator cable that contains constant capacitance symmetry heart yearn, comprise an oversheath 8, be furnished with power cables unit 1, signal of communication cable unit 2, audio frequency and video cable unit 3, optical cable unit 4, network signal cable unit 5, control cable unit 6 in this oversheath 8 and hold lotus unit 7, be flat shape (as shown in Figure 1) or circular arrangement (as shown in Figure 2).Described signal of communication cable unit 2 comprises a symmetrical heart yearn, first total shielding 12, second total shielding 13, first inner sheath 14, second inner sheath 15.Described symmetrical heart yearn is the symmetry insulation heart yearn of 8 font disjunctor concentric structures.The symmetrical heart yearn of described insulation is made up of conductor 9, insulation 10.The symmetrical heart yearn of described insulation is with regular lay twisting, and the twisting lay is 12～30 times of 8 font disjunctor concentric circles width, and direction of lay is a left-hand.
Embodiment two: shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 4, comprise four symmetrical heart yearns among this embodiment.
Embodiment three: shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 5, comprise eight symmetrical heart yearns among this embodiment.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (2)
1. elevator cable that contains constant capacitance symmetry heart yearn, it is characterized in that: described cable comprises a symmetrical heart yearn at least, this symmetry heart yearn is made up of the two parallel conductors insulating barrier outer with being coated on this two conductor, and described insulating barrier is separated two conductors fully, insulating barrier between two conductors constitutes disjunctor, forms 8 font cross section structures with this.
2. the elevator cable that contains constant capacitance symmetry heart yearn according to claim 1 is characterized in that: described symmetrical heart yearn is regular virtual center axle around symmetrical heart yearn with left-hand and reverses, and extends along the cable length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206080558U CN201877153U (en) | 2010-11-16 | 2010-11-16 | Elevator cable comprising constant-capacitance symmetrical core wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206080558U CN201877153U (en) | 2010-11-16 | 2010-11-16 | Elevator cable comprising constant-capacitance symmetrical core wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201877153U true CN201877153U (en) | 2011-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206080558U Expired - Fee Related CN201877153U (en) | 2010-11-16 | 2010-11-16 | Elevator cable comprising constant-capacitance symmetrical core wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201877153U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111742098A (en) * | 2018-01-17 | 2020-10-02 | 莱尼电缆有限公司 | Wire, in particular litz wire |
-
2010
- 2010-11-16 CN CN2010206080558U patent/CN201877153U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111742098A (en) * | 2018-01-17 | 2020-10-02 | 莱尼电缆有限公司 | Wire, in particular litz wire |
| US11248340B2 (en) | 2018-01-17 | 2022-02-15 | Leoni Kabel Gmbh | Wire, in particular for a stranded wire |
| CN111742098B (en) * | 2018-01-17 | 2022-03-22 | 莱尼电缆有限公司 | Wire, in particular litz wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131116 |