CN202650593U - Cable - Google Patents
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- CN202650593U CN202650593U CN 201220332292 CN201220332292U CN202650593U CN 202650593 U CN202650593 U CN 202650593U CN 201220332292 CN201220332292 CN 201220332292 CN 201220332292 U CN201220332292 U CN 201220332292U CN 202650593 U CN202650593 U CN 202650593U
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- Prior art keywords
- conductor
- conductor silk
- silk layer
- cable
- cable core
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- Expired - Lifetime
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Abstract
The utility model provides a cable, comprising at least a cable core assembly and an oversheath which coated on at least a cable core assembly. Each cable core assembly comprises a cable core and an insulating layer coated outside the cable core assembly. Each cable core is provided with a round cross section and is stranded by at least two conductor wires. At least a conductor wire layer is arranged from inside out on a radial direction of the round cross section. Each conductor wire layer comprises at least a conductor wire, and peripheral surfaces of two adjacent conductor wires which are facing each other fit with each other. A material of the oversheath is a PVC material with mineral oil corrosion resistance property.
Description
Technical field
The utility model relates to a kind of cable.
Background technology
Because the electric conductivity of copper is better, so the cable that present China uses is conductor mainly with copper greatly.But the density of copper is larger, and bending property usually can not satisfy under some industrial installation environments the flexible requirement of cable, has caused the installation difficulty of copper cable.Simultaneously, the price of copper is higher, so that the price of copper cable is higher.If adopt fine aluminium as conductor, although the price of aluminium is cheap and pliability is good, be difficult to satisfy the requirement of industrial application in the performance aspect tensile strength and the percentage elongation.Therefore, except copper conductor and aluminium conductor, gradually begin to be used with the cable of aluminium alloy as conductor, the characteristic of bringing to aluminium alloy cable can the balance industrial cable demand in every respect.
In addition, in the prior art, it is circular that the cross section of the metallic conductor silk of the method manufacturings such as stretched, roll extrusion is generally, and when forming cable core by stranded many metallic conductor silks, the shape of cross section of every metallic conductor silk remains unchanged.That is to say, in the cross section of cable core, it is circular that the shape of every conductor silk still keeps, and has such structure, can have larger gap between the contiguous conductor silk.Therefore the cross section of cable is larger, and then so that the bending radius of cable is larger, is unfavorable for installing.
In addition, in the prior art, the oversheath of cable can't reach the requirement of among China standard GB/T/T2951.21-2008 the anti-mineral oil of oversheath being corroded, thereby under specific service condition, causes the cable shortening in useful life
The utility model content
In order to address the above problem, the utility model provides a kind of aluminium alloy cable, and this aluminium alloy cable can solve the problems of the technologies described above by simple structure.
According to an aspect of the present utility model, provide a kind of cable.This cable comprises: at least one cable core assembly and the oversheath that is coated on described at least one cable core assembly periphery; Wherein each cable core assembly comprises cable core, is coated on the outer insulating barrier of cable core assembly; Every cable core has circular cross section, cable core is closed by at least two conductor skein silks and forms, footpath at circular cross section upwards is arranged with at least one conductor silk layer from inside to outside, and each conductor silk layer comprises at least one conductor silk, and the outer peripheral face respect to one another of two adjacent conductor silks is fitted each other.
Preferably, at least one conductor silk layer be two with upper conductor silk layer, and the outer peripheral face respect to one another of two adjacent conductor silk layers is fitted each other.
Preferably, two with in the upper conductor silk layer, is positioned at conductor silk layer centered by the conductor silk layer of center of cable core, and the conductor silk layer that surrounds center conductor silk layer is outer conductor silk layer; Wherein, center conductor silk layer has circular cross section; Outer conductor silk layer has annular cross section.
Preferably, two take upper conductor silk layer as 2 conductor silk layers, and center conductor silk layer comprises 3 conductor silks; Outer conductor silk layer comprises 7 conductor silks.
Preferably, two take upper conductor silk layer as 3 conductor silk layers, and center conductor silk layer comprises 3 conductor silks; Outer conductor silk layer comprises the first conductor silk layer and the second conductor silk layer, and wherein, described the first conductor silk layer is than the more close described center conductor silk layer of described the second conductor silk layer.The first conductor silk layer comprises 8 conductor silks, and the second conductor silk layer comprises 12 conductor silks.
Adopt such arrangement mode, farthest reduced between the conductor silk layer, the slit between conductor silk and the conductor silk, the coefficient that presses of cable core is reached more than 90%.
Preferably, oversheath is made by the PVC material of anti-mineral oil corrosion.
This oversheath satisfies the anti-mineral oil corrosivity of national standard, can prolong the useful life of cable.
Preferably, oversheath is made by the PVC material with fire resistance.
The oversheath that flame-retardant materials is made can so that the fire resistance of cable is better, provide larger fail safe.
Preferably, the material of conductor silk is aluminium alloy.
Preferably, at least one cable core assembly is a cable core assembly.
When the material of conductor silk was aluminium alloy, its advantage was that not only it has the bending property that is better than copper cable and lower manufacturing cost, and it also has tensile strength, percentage elongation and the creep resistance that is better than aluminium cable.
Following according to the disclosed purpose of the utility model, effect, and structural configuration, enumerate preferred embodiment, and cooperate accompanying drawing to describe in detail.
Description of drawings
Fig. 1 is the general structure schematic diagram according to the cable among all embodiment of the present utility model;
Fig. 2 is the viewgraph of cross-section according to the cable core of the first embodiment of the present utility model;
Fig. 3 is the viewgraph of cross-section according to the cable core of the second embodiment of the present utility model.
Embodiment
For convenience of description structural configuration of the present utility model, and use state, following embodiment describes preferred embodiment of the present utility model with reference to the accompanying drawings.
As shown in Figure 1, the cable 1 that provides according to the utility model comprises: a plurality of cable core assemblies 5 and oversheath 4; Wherein each cable core assembly 5 comprises cable core 3, is coated on the insulating barrier 3 outside the cable core assembly 5; Oversheath 4 is coated on the periphery of a plurality of cable core assemblies 5; Wherein every cable core 2 has circular cross section, cable core 2 is closed by at least two conductor skein silks and forms, footpath at circular cross section upwards is arranged with at least one conductor silk layer from inside to outside, each conductor silk layer comprises at least one conductor silk, and the outer peripheral face respect to one another of two adjacent conductor silks is fitted each other.
More specifically, in preferred embodiment of the present utility model, as shown in Figures 2 and 3, at least one conductor silk layer be two with upper conductor silk layer, and the outer peripheral face respect to one another of two adjacent conductor silk layers is fitted each other.Two with upper conductor silk layer in, be positioned at conductor silk layer 21 centered by the conductor silk layer of center of cable core 2, the conductor silk layer that surrounds center conductor silk layer 21 is outer conductor silk layer 22; Wherein, center conductor silk layer 21 has circular cross section; Outer conductor silk layer 22 has annular cross section.
In cable 1 provided by the utility model, all conductor silks are stranded front through the preforming processing.Cross section through the conductor silk after the preforming processing is not conventional circle, but according to the actual needs of each conductor silk layer (for example, the conductor silk layer of the conductor silk layer of circular cross section or annular cross section), conductor silk in the different conductor silk layer is formed respectively different shapes, be arranged in order a plurality of conductor silk layers by the radial direction along cable core 2, formed and have the long-pending cable core 2 of varying cross-section.Like this, farthest reduced between the different conductor silk layer, the slit between conductor silk and the conductor silk reaches more than 90% the coefficient that presses of cable core 2.The bending radius of cable core 2 only is 7 times of conductor assembly outer diameter.The multiple preferred structure of the conductor silk layer of cable core 2 specifies in connection with two preferred embodiments.
In the first embodiment of the present utility model, referring to Fig. 2, two take upper conductor silk layer as 2 conductor silk layers, and wherein, center conductor silk layer 21 comprises 3 conductor silk 21a; Outer conductor silk layer 22 comprises 7 conductor silk 22a.
Before the conductor skein silk was closed, the cross section of every conductor silk 21a in center conductor silk layer 21 was pre-shaped to the triangle into roughly, and the shape of cross section of every conductor silk 21a equates with area.In outer conductor silk layer 22, the cross section of every conductor silk 22a is pre-formed as roughly trapezoidal, and shape of cross section and the area of every conductor silk 22a all are equal to each other.
Compare with the cable core that is consisted of by the round conductor silk of routine, adopt be arranged compacter between the conductor silk of above-mentioned arrangement mode and the conductor silk between more fit tightly, thereby improved significantly the compression coefficient of conductor silk, and reduced the bending radius of cable 1.
In the second following embodiment, with the another kind of configuration of explanation according to cable core 2 of the present utility model.
Referring to Fig. 3, in the cable core 2 that this second embodiment provides, two take upper conductor silk layer as 3 conductor silk layers, and wherein, center conductor silk layer 21 comprises 3 conductor silk 21a; Outer conductor silk layer 22 comprises the first conductor silk layer 22A and the second conductor silk layer 22B.Further, the first conductor silk layer 22A comprises 8 conductor silk 22a than the more close center conductor silk of the second conductor silk layer 22B layer 21, the first conductor silk layer 22A, and the second conductor silk layer 22B comprises 12 conductor silk 22b.Similar with above-mentioned the first embodiment, in this second embodiment, every conductor silk has also all passed through the preforming processing, so that it has suitable sectional area and shape.Before the conductor skein silk was closed, the cross section of every conductor silk 21a in center conductor silk layer 21 was pre-shaped to the triangle into roughly, and the shape of cross section of every conductor silk 21a equates with area.In the first conductor silk layer 22A, the cross section of every conductor silk 22a is pre-formed as roughly trapezoidal, and shape of cross section and the area of every conductor silk 22a all are equal to each other.In the second conductor silk layer 22B, the cross section of every conductor silk 22b is pre-formed as roughly trapezoidal, and shape of cross section and the area of every conductor silk 22b all are equal to each other.
As shown in Figure 3, in this second embodiment, the sectional area of conductor silk 22b is greater than the sectional area of conductor silk 22a.But the utility model is not limited in this, those skilled in the art can use and design needs according to actual, as long as the radical of the conductor silk in selected each conductor silk layer and the cross-sectional area of every conductor silk are can be so that conductor silk layer meets restriction of the present utility model.Except above-mentioned two embodiment, also there is the arrangement mode of other multiple conductor silks, do not enumerate one by one at this.
Further, in the cable 1 that above-mentioned two preferred embodiments provide, oversheath 4 is made by the PVC material of anti-mineral oil corrosion.According to test, the oversheath 4 that will be made by this PVC material soaks 24 hours in oil temperature is 100 ± 2 ° oil after, the maximum rate of change of oversheath 4 tensile strength and elongation at break is-40%.This test result satisfies among the national standard GT/T2951.21-2008 the corrosive requirement of anti-mineral oil.The oversheath 4 of being made by this PVC material is more excellent by the anti-mineral oil corrosivity of the oversheath that other materials is made, thereby can prolong the useful life of cable 1.
Further, in the cable 1 that the utility model provides, oversheath 4 can also be made by the PVC material with fire resistance.According to test, the cable 1 that uses the oversheath 4 of being made by this PVC material is passed through vertically arranged bunchy electric wire flame vertical spread test C class fire retardancy test, the longest distance of charing part does not all surpass the above 2.5m in blowtorch base on the sample, and this result meets the requirement of national GB/T18380.35-2008.Therefore, use cable 1 fire resistance of the oversheath 4 that this PVC material makes better.
In addition, the cable 1 that has an oversheath 8 that the PVC material makes has anti-ultraviolet aging and low temperature resistant performance in addition.Aspect anti-ultraviolet aging, in 0-1008 hour artificial weathering test, after 1008 hours light aging, the rate of change of the tensile strength of oversheath 4 and fault growth rate is not more than 30%.After the light aging of 504-1008h, the rate of change of the tensile strength of oversheath 4 and fault growth rate is not more than 15%.This result meets the requirement of standard GB/T/T12527-2008.Aspect low temperature resistant, in test temperature was-40 ° experiment, the cryogenic tensile extension at break of oversheath 4 was commanded troops less than 20%, and sample does not have crackle after the low-temperature impact test.
Further, the material of conductor silk is aluminium alloy.The tensile strength of the conductor silk of being made by aluminium alloy is 100-140Mpa, and percentage elongation is greater than 20%, and creep-resistant property improves greatly than fine aluminium.
More than be preferred embodiment of the present utility model and accompanying drawing, only have preferred embodiment and accompanying drawing to be illustrated, it is not the interest field for restriction the utility model technology, all interest fields that is contained take identical technological means or as following claim content are implemented, and all do not break away from category of the present utility model but applicant's interest field.
Claims (9)
1. a cable is characterized in that, comprising: at least one cable core assembly and the oversheath that is coated on described at least one cable core assembly periphery; Wherein
Each described cable core assembly comprises cable core, is coated on the outer insulating barrier of described cable core assembly; And
Every described cable core has circular cross section, described cable core is closed by at least two conductor skein silks and forms, footpath at described circular cross section upwards is arranged with at least one conductor silk layer from inside to outside, each described conductor silk layer comprises at least one described conductor silk, and the outer peripheral face respect to one another of two adjacent described conductor silks is fitted each other.
2. cable as claimed in claim 1 is characterized in that,
Described at least one conductor silk layer be two with upper conductor silk layer, and the outer peripheral face respect to one another of two adjacent described conductor silk layers is fitted each other.
3. cable as claimed in claim 2 is characterized in that,
Described two are positioned at conductor silk layer centered by the described conductor silk layer of center of described cable core with in the upper conductor silk layer, and the described conductor silk layer that surrounds described center conductor silk layer is outer conductor silk layer; Wherein,
Described center conductor silk layer has circular cross section, and described outer conductor silk layer has annular cross section.
4. cable as claimed in claim 3 is characterized in that,
Described two take upper conductor silk layer as 2 conductor silk layers; Wherein
Described center conductor silk layer comprises 3 conductor silks, and described outer conductor silk layer comprises 7 conductor silks.
5. cable as claimed in claim 3 is characterized in that,
Described two take upper conductor silk layer as 3 conductor silk layers; Wherein
Described center conductor silk layer comprises 3 conductor silks;
Described outer conductor silk layer comprises the first conductor silk layer and the second conductor silk layer, wherein, described the first conductor silk layer is than the more close described center conductor silk layer of described the second conductor silk layer, and described the first conductor silk layer comprises 8 conductor silks, and described the second conductor silk layer comprises 12 conductor silks.
6. such as each described cable among the claim 1-5, it is characterized in that, described oversheath is made by the PVC material of anti-mineral oil corrosion.
7. such as each described cable among the claim 1-5, it is characterized in that, described oversheath is made by the PVC material with fire resistance.
8. cable as claimed in claim 1 is characterized in that, the material of described conductor silk is aluminium alloy.
9. cable as claimed in claim 1 is characterized in that, described at least one cable core assembly is a cable core assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332292 CN202650593U (en) | 2012-07-10 | 2012-07-10 | Cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332292 CN202650593U (en) | 2012-07-10 | 2012-07-10 | Cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650593U true CN202650593U (en) | 2013-01-02 |
Family
ID=47419661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220332292 Expired - Lifetime CN202650593U (en) | 2012-07-10 | 2012-07-10 | Cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500615A (en) * | 2013-09-04 | 2014-01-08 | 安徽电气集团股份有限公司 | Process for manufacturing spliced conductor type cable |
| CN109686505A (en) * | 2018-11-27 | 2019-04-26 | 广州岭南电缆股份有限公司 | Press the preparation method of milliken conductor |
-
2012
- 2012-07-10 CN CN 201220332292 patent/CN202650593U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500615A (en) * | 2013-09-04 | 2014-01-08 | 安徽电气集团股份有限公司 | Process for manufacturing spliced conductor type cable |
| CN109686505A (en) * | 2018-11-27 | 2019-04-26 | 广州岭南电缆股份有限公司 | Press the preparation method of milliken conductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TONGYONG (TIANJIN) ALUMINIUM ALLOY PRODUCT CO., LT Free format text: FORMER NAME: ALCAN (TIANJIN) ALLOY PRODUCTS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300308, No. 251, fourteen West Road, Dongli Airport Logistics Development Zone, Tianjin Patentee after: TONGYONG (TIANJIN) ALUMINIUM ALLOY PRODUCTS CO.,LTD. Address before: 300308, No. 251, fourteen West Road, Dongli Airport Logistics Development Zone, Tianjin Patentee before: ALCAN (TIANJIN) ALLOY PRODUCTS Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |