CN201667237U

CN201667237U - Novel mobile heat-resisting environment-protection frequency conversion cable

Info

Publication number: CN201667237U
Application number: CN 200920180067
Authority: CN
Inventors: 黄诚; 崔海洋; 王永海; 吕发忠; 王显松; 周俊民; 周晓平
Original assignee: Anhui Pacific Cable Group Co Ltd
Current assignee: ANHUI PACIFIC CABLE CO., LTD.
Priority date: 2009-10-23
Filing date: 2009-10-23
Publication date: 2010-12-08
Anticipated expiration: 2019-10-23

Abstract

The utility model discloses a novel mobile heat-resisting environment-protection frequency conversion cable, comprising a main line core and a neutral line core, ceramic heat-resisting silicon rubber insulting layers are respectively coated outside the main line core and the neutral line core, and the synthetic mica tape covering layer is covered outside the insulating layer, a plurality of main line cores and the neutral line cores are embedded, and binding layers are coated outside, high-temperature fiber glass yarns are filled among the binding layers, a plurality of the main line cores and a plurality of the neutral line cores, a shielding layer is coated outside the binding layer, a metal layer covered by a copper band is coated outside the shielding layer, a covering layer is coated outside the metal layer, an inflaming retarding ceramic heat-resisting silicon rubber protective layer is coated outside the covering layer, and an inflaming retarding oil-resisting silio-butyl protective bush layer is coated outside the protective bush layer; in the utility model, the continuity, tensile property, heat-resisting property and insulating performance of the cable are ensured at high-temperature environment, and the weight is light, anti-electromagnetic interference capacity is strong and the cable has no pollution to environment, thereby being popularized.

Description

Novel removable class fire resistant environment-friendly frequency-changing cable

Technical field:

The utility model relates generally to a kind of cable, relates in particular to a kind of novel removable class fire resistant environment-friendly frequency-changing cable.

Background technology:

Ac variable speed technology is the important development direction of Modern Electrical Drive technology, over past ten years, there is very big development in the China that is applied in of converter technique, and obtained good effect, be widely used in industrial aspect such as oil, metallurgy, generating, railway, mine, thereby the demand of supporting thereupon frequency converter private cable increases thereupon also; Because the change of cable environment for use, low-voltage variable frequency cable and common frequency-changing cable are in operation and are subject to such environmental effects, its resistance to elevated temperatures is poor, and external interference influences the feedback and the promptness of cable frequency conversion, particularly bigger to cable corrosion in corrosive situations such as oil, chemical solvents, cable fire after stain environment, not only had a strong impact on the normal operation of cable, and limited the change of converter technique, can not satisfy instructions for use in high temperature occasions such as Ferrous Metallurgys, thereby the development of private cable is restricted seriously.

The utility model content:

The purpose of this utility model is in order to remedy the deficiency of prior art, a kind of novel removable class fire resistant environment-friendly frequency-changing cable is provided, continuity, tensile property, heat resistance, the insulation property of cable in hot environment have been guaranteed, simultaneously in light weight, anti-electromagnetic interference capability is strong, environmentally safe, not only can be used in the general operational environment, the effect that embodies in abominable relatively hot environment and corrosive situations is also more remarkable, and can also be applicable to the high-end fields such as military products that requirement is more strict.

The utility model is achieved through the following technical solutions:

A kind of novel removable class fire resistant environment-friendly frequency-changing cable; include master core and neutral core; it is characterized in that: described master core and neutral core are respectively by conductor; conductor is wrapped with the heat-resisting silicone rubber insulation layer of potteryization; insulating barrier is surrounded with the synthetic mica tape lapping layer outward and forms; phase embedding between described several master core and the several neutral core; and be wrapped with double-deck low smoke and zero halogen band and the wrapped band layer of double-deck high-temperature polyester band; the gap is filled with the high-temperature glass fibre silk between described band layer and described several master core and the several neutral core; described wrapping layer is wrapped with screen; described screen is wrapped with the wrapped metal level of copper strips; described metal level is wrapped with lapping layer; described lapping layer is wrapped with the heat-resisting silicone rubber jacket layer of fire-retardant potteryization, and described restrictive coating is wrapped with Flame-Retardant and Oil-Resistant fourth silicon sheath protective layer.

Described novel removable class fire resistant environment-friendly frequency-changing cable is characterized in that: many tinned copper wire flexible conductors of described conductor employing mode bundle in the same way close and answer strand together.

Described novel removable class fire resistant environment-friendly frequency-changing cable is characterized in that: described lapping layer adopts composite structure, adopts two-layer low smoke and zero halogen band overlapping wrapped earlier, adopts two-layer high-temperature polyester band overlapping wrapped again.

Described novel removable class fire resistant environment-friendly frequency-changing cable, it is characterized in that: described screen adopts the combining structure of internal shield and outer shielding layer, described internal shield is that high tenacity polyester fiber silk or aramid fiber silk add zinc-plated soft copper silk mixed weaving, and described outer shielding layer adopts the wrapped shielding of high conductivity soft copper band.

Characteristics of the present utility model:

(1), conductor adopts tinned copper wire flexible conductor structure, monofilament should meet the GB4910-1985 regulation, its electric conductivity is superior, and resistivity is very little, and is big with cross section cable current capacity, and temperature resistant grade is very high, can be useful in some high temperature occasion such as temperature more than 400 ℃, and conductor adopts in the same way that the mode bundle closes and answer strand, guaranteed the height flexibility of conductor, as in some superhigh temperature occasion as more than 750 ℃, conductor also can adopt silver-plated or nickel plating copper wire flexible conductor structure.

(2); insulating barrier adopts the duplex structure; for extruding potteryization heat resistant type silicon rubber insulation and double-layer overlapping 50% wrapped high-performance synthetic mica tape; help keeping the superior isolation performance of this cable; the potteryization silicone rubber insulation layer can continue to use in the high-temperature work environment more than 500 ℃; even also can be in the regular hour in some hyperthermal environments ablatedly change into hard ceramic-like material; form the good isolated protective layer of one deck; the continuation that stops high temperature is ablated; and the ablation time is long more; temperature is high more; hard effect is obvious more, strong assurance cable continue normal operation.

Insulating barrier is peripheral simultaneously weaves reinforcing sleeve with high tenacity polyester fiber silk or aramid fiber silk+glass fiber, and high tenacity polyester fiber silk or aramid fiber silk help to improve the cable pull resistance, and glass fiber has been strengthened its heat-resisting quantity again;

Described neutral line cored structure is with the master core structure, and the symmetrical distribution of employing phase embedding, makes every phase line all adopt the independent grounding mode, guarantee the reliability of ground connection, since the interchangeability of lead,, better electromagnetic compatibility is arranged, eliminate the noise that leakage current causes, play a role to suppressing electromagnetic interference, can offset the humorous odd frequency in that of high order, improve the anti-interference of variable-frequency motor private cable, reduce the electromagnetic radiation in the whole system, can realize the electrostatic screen of cable simultaneously.

(3), lapping layer adopts composite structure, adopts two-layer low smoke and zero halogen band overlapping wrapped earlier, adopts two-layer high-temperature polyester band overlapping wrapped again, promptly guaranteed the whole heat-resisting ability of cable, even environmentally safe during the cable burning to a certain extent again.

(4), described screen adopts the combining structure of internal shield and outer shielding layer, described internal shield is high tenacity polyester fiber silk or aramid fiber silk and the braiding of zinc-plated soft copper silk, described outer shielding layer adopts the wrapped shielding of high conductivity soft copper band, its inner shield mainly is the vertical mechanical protection layer as cable, also play the additivity shielding action, guarantee electrical continuity simultaneously, not only can satisfy frequency-changing cable shielding purpose, more can improve whole cable pull resistance; Particularly high tenacity polyester fiber silk or aramid fiber silk and tinned copper wire, copper strips shielding, be to have adopted two kinds of different shielding materials and shielding pattern, on electromagnetic wave shielding, play certain complementation, shield effectiveness will be better, in the anti-interference that improves the variable-frequency motor private cable, also reduced the electromagnetic radiation in the whole system.

(5), Flame-Retardant and Oil-Resistant fourth silicon sheath is by heat-resisting silicon rubber of fire-retardant potteryization and fire-retardant fourth silicon two-layer compound sheath, the two performance is replenished mutually, guarantee that this cable can use in the hot environment occasion, can certain " far water " property effect be arranged to oil, chemical solvent etc. again simultaneously.

The utility model has the advantages that:

1, high-temperature stability, can be under 500 ℃ of environment operate as normal;

2, removable use, and flexibility is good, and bending radius is little, and vertically resistance to tension is strong, in light weight;

3, have good shield effectiveness, both can prevent the interference of external electromagnetic cable, also can prevent cable in use since electromagnetic field that self produced to the interference of other electronic equipment of periphery, signal feedback is timely and effective;

4, environment resistant superior, oil resistant, cold-resistant, anti-solvent and resistance to migration are stronger;

5, excellent fire retardant characteristic belongs to the environmental protection novel product.

Description of drawings:

Fig. 1 is the utility model structural representation.

Embodiment:

A kind of novel removable class fire resistant environment-friendly frequency-changing cable; include master core 13 and neutral core 8; described master core 13 and neutral core 8 respectively by many tinned copper wire flexible conductors in the same way the mode bundle close and answer together conductor 1 of strand; conductor 1 is wrapped with the heat-resisting silicone rubber insulation layer 2 of potteryization; the insulating barrier 2 outer synthetic mica tape lapping layers 3 that are surrounded with are formed; phase embedding between described three master cores 13 and the three neutral cores 8; and be wrapped with double-deck low smoke and zero halogen band and the wrapped band layer 5 of double-deck high-temperature polyester band; the gap is filled with high-temperature glass fibre silk 12 between described band layer 5 and described three master cores 13 and the three neutral cores 8; described wrapping layer 5 is wrapped with screen 6; described screen 6 is wrapped with the wrapped metal level of copper strips 7; described metal level 7 is wrapped with lapping layer 9; described lapping layer 9 is wrapped with the heat-resisting silicone rubber jacket layer 10 of fire-retardant potteryization, and described restrictive coating 10 is wrapped with Flame-Retardant and Oil-Resistant fourth silicon sheath protective layer 11.

Claims

1. novel removable class fire resistant environment-friendly frequency-changing cable; include master core and neutral core; it is characterized in that: described master core and neutral core are respectively by conductor; conductor is wrapped with the heat-resisting silicone rubber insulation layer of potteryization; insulating barrier is surrounded with the synthetic mica tape lapping layer outward and forms; embedding mutually respectively between described several master core and the neutral core; and be wrapped with double-deck low smoke and zero halogen band and the wrapped band layer of double-deck high-temperature polyester band; described band layer and described several master core; the gap is filled with the high-temperature glass fibre silk between the neutral core; described wrapping layer is wrapped with screen; described screen is wrapped with the wrapped metal level of copper strips; described metal level is wrapped with lapping layer; described lapping layer is wrapped with the heat-resisting silicone rubber jacket layer of fire-retardant potteryization, and described restrictive coating is wrapped with Flame-Retardant and Oil-Resistant fourth silicon sheath protective layer.

2. novel removable class fire resistant environment-friendly frequency-changing cable according to claim 1 is characterized in that: many tinned copper wire flexible conductors of described conductor employing mode bundle in the same way close and answer strand together.

3. novel removable class fire resistant environment-friendly frequency-changing cable according to claim 1 is characterized in that: described lapping layer adopts composite structure, adopts two-layer low smoke and zero halogen band overlapping wrapped earlier, adopts two-layer high-temperature polyester band overlapping wrapped again.

4. novel removable class fire resistant environment-friendly frequency-changing cable according to claim 1, it is characterized in that: described screen adopts the combining structure of internal shield and outer shielding layer, described internal shield is that high tenacity polyester fiber silk or aramid fiber silk add zinc-plated soft copper silk mixed weaving, and described outer shielding layer adopts the wrapped shielding of high conductivity soft copper band.