CN203659468U - Anti-compression torsion-resistant combined shielding flexible electric cable - Google Patents
Anti-compression torsion-resistant combined shielding flexible electric cable Download PDFInfo
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- CN203659468U CN203659468U CN201320672014.9U CN201320672014U CN203659468U CN 203659468 U CN203659468 U CN 203659468U CN 201320672014 U CN201320672014 U CN 201320672014U CN 203659468 U CN203659468 U CN 203659468U
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Abstract
The utility model discloses an anti-compression torsion-resistant combined shielding flexible electric cable comprising an outer protection layer and three wire cores wrapped inside the outer protection layer, gaps between the outer protection layer and the wire cores are provided with synthetic fiber fillers, the outer protection layer consists of a rat-proof and ant-proof high density polyethylene protection sleeve and a fluorescent indicating bar which is sprayed on the surface of the protection sleeve along the extension direction of the electric cable, a heat insulating and cooling layer formed by superposing an organic glass tape winding and wrapping layer and an inorganic expansion cooling layer is arranged between the protection sleeve and the wire cores, the outside of the heat insulating and cooling layer is covered with a shielding layer having a three-layer structure, the inner layer of the shielding layer is made of aluminium and magnesium alloy wires, the middle layer of the shielding layer is an electromagnetic shielding coating layer, and the outer layer of the combined shielding layer is an iron and nickel alloy tape. Compared with an electric cable of the prior art, the anti-compression torsion-resistant combined shielding flexible electric cable is characterized by good strength, corrosion resisting property, anti-compression property, and twist-proof property; the anti-compression torsion-resistant combined shielding flexible electric cable is characterized in that electromagnetic interference cannot be generated easily.
Description
Technical field
The utility model belongs to cable technology field, is specifically related to the resistance to composite shielding flexible cable of turning round of a kind of resistance to compression.
Background technology
Wind energy cable is mainly used in the connecting line of blower fan, environment for use very severe, not only to there is excellent electric property and anti-torsion performance, also will have the characteristics such as excellent wear-resisting, cold-resistant, oil resistant, water-fast, ageing-resistant, high water proofing property, poisture-penetrability, windproof, weather-resistant, antibacterial, mildew-resistant, environmental protection.The flexible cable using at wind-driven generator mostly at present is common flexible cable, cannot fully meet the harsh requirement of cable environment for use, is prone to the quality problems such as disconnected core, cracking, and cable is short useful life, affects the efficiency of blower fan system.Therefore, research and develop the flexible cable of resistance to torsion used for wind-energy power generation and promote its specialization and seriation, guaranteeing the operation steady in a long-term of wind energy cable, thering is positive social progress meaning and economic development prospect.For this reason, Chinese patent CN201220289504.6 discloses a kind of flexible cable of resistance to torsion used for wind-energy power generation, comprises external protection and is wrapped in three cores in external protection; Described external protection is made up of polyether-type thermoplastic polyurethane compound sheath and band from outside to inside; Every core is made up of the elastic body insulated layer parcel of ethylene-propylene rubber type conductor.The advantage of this technical scheme is by the improvement of the type selecting of the structural design to cable, material, has improved resistance to twisting property, weatherability, lower temperature resistance and the Corrosion Protection of cable, has strengthened the use safety of cable, the useful life of having improved cable.But, also exist one obviously not enough, that is: insufficient strength, easily broken core, is applied to produce sometimes in electronic equipment electromagnetic interference.
Utility model content
The purpose of this utility model is to provide a kind of resistance to composite shielding flexible cable of turning round of resistance to compression of new construction, and not only intensity is better for it, and corrosion-resistant resistance to compression is resistance to be turned round, and is difficult for producing electromagnetic interference.
For realizing this purpose, the technical solution of the utility model is: the resistance to composite shielding flexible cable of turning round of a kind of resistance to compression, comprise external protection and be wrapped in three cores in external protection, described core is made up of conductor and parcel elastic body insulated layer thereon, in space between described external protection and core, there is synthetic fibers filler, described external protection is by high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) sheath and be sprayed at jacket surface and form along the fluorescent index bar of cable bearing of trend setting, between described sheath and core, be also provided with the heat insulation and heat control layer being formed by stacking by polymethyl methacrylate silk ribbon lapping layer and inorganic expansion cooling layer, described heat insulation and heat control layer outside is also covered with screen, described screen is three-decker, internal layer is aluminum-magnesium alloy wire, intermediate layer is electromagnetic shielding overlay, skin is iron-nickel alloy band.
As preferably, described high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) sheath inner side is also provided with the resistance to layer of turning round of a braiding.
As preferably, described high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) jacket outer surface is provided with many staggered hot pressing lines that form by hot pressing, and described many staggered hot pressing lines make jacket surface divide several particulate kicks that form.
With respect to prior art; the utility model filled core adopts the aramid fiber yarn that percentage elongation is little, tensile strength is large, flexible, not combustion-supporting, corrosion-resistant and line density is little; percentage elongation is little, tensile strength is greatly in the situation that cable is stressed; cable is played to protective effect, guaranteed the transmission quality of cable, be filled in the gap of cable after aramid fiber yarn is stranded; improve the pull-off force of cable; the firm structure of cable is transmitted cable in special environment, and quality is more stable.Adopt aluminum-magnesium alloy wire, three layers of composite shielding structure of electromagnetic shielding overlay and iron-nickel alloy band, almag is placed on to innermost layer, a little less than utilizing its magnetic, the feature that density is little, can not produce interference and effectively alleviate cable weight, and iron-nickel alloy band is a kind of strong magnetic material, can effectively overcome the interference of high-intensity magnetic field, using electromagnetic shielding overlay as in ask layer that on the one hand it has good magnetic conduction, absorbing property, also can isolate on the other hand aluminum-magnesium alloy wire and iron-nickel alloy band, prevent that both from producing coupling effect, influence each other and offset magnetic screen, greatly promote electromagnetic pulse-resisting performance of the present utility model.In addition, adopt polymethyl methacrylate silk ribbon lapping layer and the inorganic expansion stacked synthetic insulating cooling layer of lowering the temperature to be located at the innermost layer of being close to cable core, contribute to the heat insulation and heat control of cable, prolongation cable useful life.Be coated with fluorescence bar at jacket surface one along cable bearing of trend, make cable be easier to keep in repair identification.
Accompanying drawing explanation
Fig. 1 is the utility model cross-sectional view.
Wherein: 1 is conductor; 2 is elastic body insulated layer; 3 is synthetic fibers filler; 4 is heat insulation and heat control layer; 5 is external protection; 6 is screen.
embodiment
The utility model is further illustrated with reference to the accompanying drawings in conjunction with the embodiments.
As shown in Figure 1, the resistance to composite shielding flexible cable of turning round of a kind of resistance to compression, comprise external protection and be wrapped in three cores in external protection, described core is made up of conductor and parcel elastic body insulated layer thereon, in space between described external protection and core, there is synthetic fibers filler, described external protection is by high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) sheath and be sprayed at jacket surface and form along the fluorescent index bar of cable bearing of trend setting, between described sheath and core, be also provided with the heat insulation and heat control layer being formed by stacking by polymethyl methacrylate silk ribbon lapping layer and inorganic expansion cooling layer, described heat insulation and heat control layer outside is also covered with screen, described screen is three-decker, internal layer is aluminum-magnesium alloy wire, intermediate layer is electromagnetic shielding overlay, skin is iron-nickel alloy band.Wherein, described high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) sheath inner side is also provided with the resistance to layer of turning round of a braiding.Described high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) jacket outer surface is provided with many staggered hot pressing lines that form by hot pressing, and described many staggered hot pressing lines make jacket surface divide several particulate kicks that form.
The improvement that the utility model is done mainly for composite shielding flexible cable structure, the foregoing is only the utility model preferred embodiment, non-ly therefore limit to the scope of the claims of the present utility model, therefore simple and easy variation and the equivalent transformation of such as doing by the utility model specification and graphic content, all should be contained in the scope of the claims of the present utility model.
Claims (3)
1. the resistance to composite shielding flexible cable of turning round of resistance to compression, comprise external protection and be wrapped in three cores in external protection, described core is made up of conductor and parcel elastic body insulated layer thereon, it is characterized in that, in space between described external protection and core, there is synthetic fibers filler, described external protection is by high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) sheath and be sprayed at jacket surface and form along the fluorescent index bar of cable bearing of trend setting, between described sheath and core, be also provided with the heat insulation and heat control layer being formed by stacking by polymethyl methacrylate silk ribbon lapping layer and inorganic expansion cooling layer, described heat insulation and heat control layer outside is also covered with screen, described screen is three-decker, internal layer is aluminum-magnesium alloy wire, intermediate layer is electromagnetic shielding overlay, skin is iron-nickel alloy band.
2. the resistance to composite shielding flexible cable of turning round of resistance to compression according to claim 1, is characterized in that, described high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) sheath inner side is also provided with the resistance to layer of turning round of a braiding.
3. the resistance to composite shielding flexible cable of turning round of resistance to compression according to claim 1, it is characterized in that, described high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) jacket outer surface is provided with many staggered hot pressing lines that form by hot pressing, and described many staggered hot pressing lines make jacket surface divide several particulate kicks that form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320672014.9U CN203659468U (en) | 2013-10-30 | 2013-10-30 | Anti-compression torsion-resistant combined shielding flexible electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320672014.9U CN203659468U (en) | 2013-10-30 | 2013-10-30 | Anti-compression torsion-resistant combined shielding flexible electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659468U true CN203659468U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320672014.9U Expired - Fee Related CN203659468U (en) | 2013-10-30 | 2013-10-30 | Anti-compression torsion-resistant combined shielding flexible electric cable |
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| Country | Link |
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| CN (1) | CN203659468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719764A (en) * | 2016-02-03 | 2016-06-29 | 安徽中天电缆有限公司 | Rat-proof and pressure-proof cooling cable |
-
2013
- 2013-10-30 CN CN201320672014.9U patent/CN203659468U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719764A (en) * | 2016-02-03 | 2016-06-29 | 安徽中天电缆有限公司 | Rat-proof and pressure-proof cooling cable |
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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 |
Granted publication date: 20140618 Termination date: 20141030 |
|
| EXPY | Termination of patent right or utility model |