CN209708703U - A kind of low temperature resistant instrument and meter control cable - Google Patents

Abstract

The utility model discloses a kind of low temperature resistant instrument and meter control cables, insulated wire cores including multicore structure, the insulated wire cores are made of conductor and the insulating layer being extruded in outside conductor, filled layer is additionally provided with outside insulating layer, overlapping is surrounded with high temperature composite strip outside insulated wire cores, copper alloy silk shielded layer, copper alloy silk shielded layer one layer of compound copper-plastics band of outer longitudinal wrap are wound with outside high temperature composite strip, compound copper-plastics band is extruded with oversheath outside.The cable of the utility model is using monocrystalline copper free wire as transport vehicle, using super clean insulating material of polyethylene, so that cable is more stable in terms of signal transmission, high temperature composite strip and copper alloy silk shielded layer are set outside insulated wire cores, using such composite barrier structure, so that the anti-outer signals interference of cable is also more excellent, the thermoplasticity EP rubbers material that oversheath uses, so that cable is at low ambient temperatures, it is same that there is soft resistant to bending performance.

Description

A kind of low temperature resistant instrument and meter control cable

Technical field

The utility model relates to a kind of wire and cables, and in particular to a kind of on instrument and at low ambient temperatures The low temperature resistant instrument and meter control cable of energy normal use.

Background technique

Over the past decade, international instrument and meter development is extremely rapid, and modern instrument instrument product will be towards computerization, net Network, intelligence, multifunction direction develop.In instrument and meter as transmission control key element control cable, also with The development of instrument and meter, the performance requirements of product be also gradually increased.Traditional control cable be generally exactly PVC insulation, The structures simple products such as PVC sheath, with the high speed development of the field instrument and meter, the performance of traditional control cable is not It is able to satisfy existing requirement, also there are the high performance materials such as instrument and meter control cable fluoroplastic insulation, polyimide insulative, because Such prices of raw materials is expensive, and which results in product, cost has risen considerably, and energy consumption is high when producing, and being unfavorable for promoting makes With.

Utility model content

In order to solve the above technical problems, the utility model provides, one kind is at low cost, and use environment is extensive, can be in low temperature environment The low temperature resistant instrument and meter control cable of lower normal use, dielectric loss is low in high frequency, and stable signal transmission is efficient, soft easy Laying.

The utility model provides the following technical solutions:

A kind of low temperature resistant instrument and meter control cable, the insulated wire cores including multicore structure, the insulated wire cores are by conductor With the insulating layer composition being extruded in outside conductor, the insulating layer is additionally provided with filled layer outside, and overlapping is surrounded with height outside insulated wire cores Warm composite strip, the high temperature composite strip are wound with copper alloy silk shielded layer, the outer longitudinal wrap one of the copper alloy silk shielded layer outside Layer compound copper-plastics band, the compound copper-plastics band are extruded with oversheath outside.

Further, the conductor is monocrystalline anaerobic copper core, is made of compound bundle strand bare copper wire.

Further, the insulating layer is low density polyethylene (LDPE) insulating materials.

Further, the filled layer is aramid fiber.

Further, the high temperature composite strip include electric insulation paper and with electric insulation paper bonding polyester film, Using overlapping lapping structure, wrapped overlap rate is not less than 20%.

Further, the copper alloy silk of the copper alloy silk shielded layer is copper-coated magnesium alloy silk, using being closely wound structure, Copper alloy silk diameter is 0.08-0.3mm.

Further, the compound copper-plastics band uses the compound copper-plastics band of copper foil composition Nian Jie with polyester layer, and band is put up Rate is not less than 10%, when longitudinal wrap, and copper foil is inward-facing, the outside longitudinal wrap of polyester layer.

Further, the oversheath uses thermoplasticity EP rubbers sheath.

Compared with prior art, the utility model has the beneficial effects that the cable of the utility model is with monocrystalline copper free wire As transport vehicle, using super clean insulating material of polyethylene, so that cable is more stable in terms of signal transmission, in insulated wire cores Outer setting high temperature composite strip and copper alloy silk shielded layer, using such composite barrier structure, so that the anti-extraneous letter of cable Number interference is also more excellent, the thermoplasticity EP rubbers material that oversheath uses, so that cable at low ambient temperatures, equally has Soft resistant to bending performance.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model.

Fig. 2 is the structural schematic diagram of Fig. 1 high temperature composite strip.

Fig. 3 is the structural schematic diagram of compound copper-plastics band in Fig. 1.

In figure: 1, conductor, 2, insulating layer, 3, filled layer, 4, high temperature composite strip, 41, electric insulation paper, 42, polyester Film.5, copper alloy silk shielded layer, 6, compound copper-plastics band, 61, copper foil, 62, polyester layer, 7, oversheath.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1, a kind of low temperature resistant instrument and meter control cable of the utility model, including conductor 1 and being extruded in is led Insulating layer 2 outside body 1, conductor 1 and insulating layer 2 form insulated wire cores, and insulated wire cores are multicore structure, are additionally provided with outside insulating layer 2 Filled layer 3, overlapping is surrounded with high temperature composite strip 4 outside insulated wire cores, and the shielding of copper alloy silk is wound with outside high temperature composite strip 4 Layer 5, the outer longitudinal wrap of copper alloy silk shielded layer 5 have compound copper-plastics band 6, oversheath 7 are extruded with outside compound copper-plastics band 6.

Wherein, conductor 1 is monocrystalline anaerobic copper core, is made of compound bundle strand bare copper wire, meets conductor structure in UL158 and want It asks.

Insulating layer 2 is the super clean low density polyethylene (LDPE) insulating layer of low temperature resistant -70 degree.

Filled layer 3 is aramid fiber filling, entire stranding gap is filled up, to guarantee the roundness of cable.

Shown in Fig. 2, high temperature composite strip 4 is using being electric insulation paper 41 and polyester film 42 through made of adhesive bonding Two layers of composite material, using overlapping lapping structure, with a thickness of 0.15mm, wrapped overlap rate is not less than 20%.

The copper alloy silk of copper alloy silk shielded layer 5 is copper-clad magnesium, and using being closely wound structure, copper alloy silk diameter is 0.08-0.3mm。

Shown in Fig. 3, compound copper-plastics band 6 is with thickness using the compound copper-plastics band of the composition Nian Jie with polyester layer 62 of copper foil 61 0.1mm, using longitudinal wrap mode, band overlap rate is not less than 10%, and when longitudinal wrap, copper foil is inward-facing, the outside longitudinal wrap of polyester layer.

Oversheath 7 uses thermoplasticity EP rubbers sheath, and oversheath 7, which extrudes, requires rounding, smooth, and extrusion way is using squeezing Pressure type squeezes out.

Cable line gauge 32AWG~14AWG.

The cable of the utility model is mainly using the monocrystalline copper free wire for having transmission signal excellent as transport vehicle, absolutely Edge, which uses, has low temperature resistant, the low non-polar material super clean insulating material of polyethylene of dielectric loss, so that cable is passed in signal Defeated aspect is more stable, and stress levels are high, and material price is low.Because having used aramid fiber as filling in filling Material is overlapped outside insulated wire cores so that cable waves more excellent in performance in bending with anti-and is surrounded with high temperature composite strip 4,4 outer layer of high temperature composite strip is wound with copper alloy silk shielded layer 5, and high temperature composite strip 4 has insulation performance, using such Composite barrier structure, so that the anti-outer signals interference of cable is also more excellent, screening factor reaches 0.1, what oversheath used Thermoplasticity EP rubbers material, so that cable is at low ambient temperatures, it is same that there is soft resistant to bending performance, so that cable is multiple Normal use under miscellaneous low temperature environment.

The low temperature resistant instrument and meter control cable of the utility model, by being detected under low temperature environment, cable at -60 DEG C hereinafter, Oversheath does not crack, and signal transmission is normal, without short-circuit punch-through.It is excellent compared with other cable features with being used under same environment It is good, low-cost feature.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (8)

1. a kind of low temperature resistant instrument and meter control cable, it is characterised in that: the insulated wire cores including multicore structure, the insulated wire Core is by conductor (1) and is extruded in the insulating layer (2) of conductor (1) outside and forms, and filled layer (3), In are additionally provided with outside the insulating layer (2) It is overlapped and is surrounded with high temperature composite strip (4) outside insulated wire cores, copper alloy silk shielded layer is wound with outside the high temperature composite strip (4) (5), one layer of compound copper-plastics band (6) of the outer longitudinal wrap of the copper alloy silk shielded layer (5), the compound copper-plastics band (6) are extruded with outer outside Sheath (7).

2. a kind of low temperature resistant instrument and meter control cable according to claim 1, it is characterised in that: the conductor (1) is Monocrystalline anaerobic copper core is made of compound bundle strand bare copper wire.

3. a kind of low temperature resistant instrument and meter control cable according to claim 1, it is characterised in that: the insulating layer (2) For low density polyethylene (LDPE) insulating materials.

4. a kind of low temperature resistant instrument and meter control cable according to claim 1, it is characterised in that: the filled layer (3) For aramid fiber.

5. a kind of low temperature resistant instrument and meter control cable according to claim 1, it is characterised in that: the high temperature composite band Material (4) include electric insulation paper (41) and with electric insulation paper (41) bonding polyester film (42), using overlapping lapping structure, Wrapped overlap rate is not less than 20%.

6. a kind of low temperature resistant instrument and meter control cable according to claim 1, it is characterised in that: the copper alloy silk screen The copper alloy silk for covering layer (5) is copper-coated magnesium alloy silk, and using structure is closely wound, copper alloy silk diameter is 0.08-0.3mm.

7. a kind of low temperature resistant instrument and meter control cable according to claim 1, it is characterised in that: the compound copper-plastics band (6) compound copper-plastics band of copper foil (61) composition Nian Jie with polyester layer (62) is used, band overlap rate is not less than 10%, when longitudinal wrap, copper Foil is inward-facing, the outside longitudinal wrap of polyester layer.

8. a kind of low temperature resistant instrument and meter control cable according to claim 1, it is characterised in that: the oversheath (7) Using thermoplasticity EP rubbers sheath.