RU153925U1 - MULTI-WIRE WIRE FOR MOTOR TRANSPORT, CONSTRUCTION AND AGRICULTURAL EQUIPMENT WITH A RANGE OF WORKING TEMPERATURES FROM (-40 ° С) TO (+ 160 ° С) - Google Patents

Abstract

1. Stranded wire for vehicles, construction and agricultural machinery with a range of operating temperatures in the range from (- 40 ° C) to (+ 160 ° C), containing at least 2 flexible multi-wire metal conductive conductors made of copper, tinned copper, copper alloy, aluminum or aluminum alloy made with or without a seal, while the core insulation is made of heat-resistant special PVC compound, fireproof halogen-free or slightly halogen compound with electron beam cross-linking, and on top of insulated L contains a polymer shell made of a heat resistant PVC compound, or a halogen-free flameproof slabogalogennogo compounds with electron beam sshivkoy.2. Stranded wire according to claim 1, characterized in that, in addition to the conductive conductors, it contains a drainage stranded or single-wire core of copper, tinned copper or a copper alloy, aluminum or aluminum alloy, with or without semiconducting insulation, and on top of insulated conductive and drainage conductors contains a screen of tinned copper or copper wires, aluminum or copper foil on a polymer base, applied both independently and together with a screen of wires, and an outer sheath is made on top of the screen made of PVC compound, fireproof halogen-free and low-halogen compounds with electron beam crosslinking.

Description

The claimed technical solution relates to the field of electrical engineering, namely, wires intended for flexible connection of electrical equipment of vehicles, as well as construction and agricultural machinery.

Known auto-PVA TU TU 16.K17-021-94 one and two core with insulation made of PVC compound, designed for connecting electrical equipment and devices in motor vehicles. The constant operating temperature of these wires is from (-40 ° C) to (+ 105 ° C).

A disadvantage of the known wire is insufficient heat resistance and insufficient number of cores, because used in PVA for PVC insulation - plastic does not ensure the performance of the autowire at temperatures above 105 ° C, and a small number of cores does not provide the necessary number of connections, that is, the wire does not meet modern requirements for electric networks of vehicles.

Known ″ Heat-resistant flexible electrical wire for connecting electrical equipment of vehicles ″, (patent for PM No. 41916), containing at least two conductive wires of tinned copper wires with two sequentially arranged insulation layers of polymer material, a separation layer of film located on top of twisted insulated conductive conductors, and a sheath of thermoplastic elastomer based on block hydro-gynogenized phenylethylene copolymers, moreover, as a polymer mat rial of the first layer of insulation is used a crosslinked polyolefin as a resin material for the second insulation layer used crosslinked PTFE.

A disadvantage of the known wire is:

1) two-layer insulation, the application of which leads to a complication of the insulation process, which, together with the presence in the second layer of expensive fluoroplastic, leads to a rise in the cost of the wire;

2) the use of only tinned copper wire to create a conductive core is not always justified, since modern technologies for connecting wires to each other and forging contacts in wire harnesses allow the use of tinned copper, copper and aluminum alloys and other materials;

3) the absence of a drainage core affects the protection of the wire from interference during operation of the car engine and installation conditions;

4) the cross-section of the conductive conductors is limited to the interval 0.35-1.0 mm2, while in the current regulatory technical documentation for multi-conductor autoconductors for the assembly of foreign cars, conductive conductors with a cross section of 0.22 to 2.5 mm2 are required;

5) the heat resistance of 125 ° C is insufficient if the wire is used in a sealed engine compartment.

The problem solved by the proposed utility model is to simplify the design and manufacturing technology of the automobile circuit, expand the ranges of materials used and operating temperatures, reduce the cost of its production while ensuring high performance.

The problem is solved by the proposed wires, in which in the first embodiment a stranded wire for vehicles, construction and agricultural machinery with a range of operating temperatures in the range from (-40 ° C) to (+ 160 ° C), containing at least 2 flexible multi-wire metal conductive conductors made of copper, tinned copper, copper alloy, aluminum, aluminum alloy, made with or without compaction, while the single-layer insulation of the conductors is made of self-extinguishing polymer materials crosslinked by electron beam method on based on PVC compound, low-halogen compound, halogen-free compound, thermoplastic stoplast; and on top of insulated cores it contains a polymer shell made of heat-resistant PVC compound, fireproof halogen-free or slightly halogen compounds with electron beam crosslinking.

In the second embodiment, the single-core conductor specified above in the first embodiment further comprises a multi-wire or single-wire drainage core made of copper, tinned copper, copper alloy, aluminum or aluminum alloy, the drainage core may have semi-conductive insulation or be without insulation, and over conductive and drainage the core wire contains a screen of materials from the following series:

- from copper or tinned copper wires;

- aluminum or copper foil on a polymer basis, applied both independently and together with a screen of wires.

On top of the screen there is an outer shell made of PVC compound, halogen-free and slightly halogen compound with electron beam crosslinking.

The claimed technical solution is illustrated by drawings, where:

In FIG. 1 shows the design of a two-wire wire, OPTION 1.

In FIG. 2 shows the design of the wire of a two-core shielded OPTION 2.

OPTION 1. The stranded wire shown in Fig 1 contains: 1 - conductive core; 2 - polymer insulation; 3 - polymer shell.

Stranded wire for vehicles, construction and agricultural machinery with a temperature range in the range (-40 ° C) to (+ 160 ° C) contains at least 2 flexible multi-wire metal conductors made of copper, tinned copper, copper alloy, aluminum or aluminum alloy, made with and without a seal, while the core insulation is made of low fire hazard polymers, such as heat-resistant special PVC compound, halogen-free and slightly halogen compounds with electron beam cross-linking, and on top of It contains an isolated living fireproof polymer shell made of a heat resistant PVC compound, halogen-free or slabogalogennogo compounds with electron beam crosslinking.

Electron beam crosslinking, compared with the chemical method, provides higher wire characteristics during operation.

The wire of this design is highly resistant to abrasion, bursting at maximum operating temperature, compatibility of the sheath with automotive fluids, resistance to thermal overload and cold winding at (-40 ° C).

Depending on the declared operating conditions, the single-layer insulation and the shell can be made of a self-extinguishing polymer crosslinked by the electron beam method with an upper working temperature limit of 105 ° C, 125 ° C and 160 ° C.

In addition, given that the regulatory documents of some European car manufacturers contain direct instructions on the use of low-voltage and low-halogen-free autowells in low-voltage networks of motor vehicles, and in the case of cross-linking, the electron-beam method is preferred, the proposed wires should be used to localize the production of foreign cars in Of Russia

OPTION 2. The stranded wire shown in FIG. 2 contains: 1 - conductive core; 2 - polymer insulation; 3 - drainage core; 4 - screen; 5 - polymer shell.

Stranded wire according to option 1, which in addition to conductive conductors contains a drainage stranded or single-wire core of copper, tinned copper or copper alloy, aluminum or aluminum alloy, moreover, the drainage core has semiconducting insulation or can be without insulation, and on top of insulated conductive and drainage veins contains a screen of:

- copper or tinned copper wires;

- aluminum or copper foil on a polymer basis, applied both independently and together with a screen of wires;

an outer polymer shell is applied over the screen, as in option 1.

The following polymeric materials can be used as insulation and sheathing of the wire: PVC compound, fireproof, low-halogen or halogen-free compounds crosslinked by the electron beam method.

The declared wire with a screen and a drainage core provides reliable protection of the transmitted signal from an electromagnetic field constantly changing in a vehicle under conditions of elevated temperature and vapors of automotive fluids in the engine compartment with simultaneous exposure to abrasive loads and bends that occur when driving vehicles.

The declared wire complies with the requirements of the international standard ISO 14572. The insulation and sheath made of the claimed wire made of halogen-free polymeric materials with electron beam cross-linking allow these wires to be used in vehicles with increased environmental friendliness requirements and in executive cars.

Claims (2)

1. Stranded wire for vehicles, construction and agricultural machinery with a range of operating temperatures in the range from (- 40 ° C) to (+ 160 ° C), containing at least 2 flexible multi-wire metal conductive conductors made of copper, tinned copper, copper alloy, aluminum or aluminum alloy made with or without a seal, while the core insulation is made of heat-resistant special PVC compound, fireproof halogen-free or slightly halogen compound with electron beam cross-linking, and on top of insulated L contains a polymer shell made of a heat resistant PVC compound, or a halogen-free flameproof slabogalogennogo compounds with electron beam crosslinking. 2. Stranded wire according to claim 1, characterized in that, in addition to the conductive conductors, it contains a drainage stranded or single-wire core of copper, tinned copper or a copper alloy, aluminum or aluminum alloy, with or without semiconducting insulation, and on top of insulated conductive and the drainage core contains a screen of tinned copper or copper tinned wires, aluminum or copper foil on a polymer base, applied both independently and together with a screen of wires, and an outer sheath is made on top of the screen ovary PVC-compound, and a halogen-free flameproof slabogalogennogo compounds with electron beam crosslinking.

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