CN112562897A

CN112562897A - Low-voltage power signal composite cable

Info

Publication number: CN112562897A
Application number: CN202011297229.8A
Authority: CN
Inventors: 杨治海
Original assignee: Anhui Shenhua Special Cable Co ltd
Current assignee: Anhui Shenhua Special Cable Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-03-26

Abstract

The invention discloses a low-voltage power signal composite cable, and particularly relates to the technical field of cables. According to the invention, when the whole low-voltage power signal composite cable is twisted and extruded by an external force, the outer compression-resistant layer and the inner compression-resistant layer deform under the passive action of the external force, and a transmission and buffering force is formed between the magnetic core conductor and the outer sheath, so that the whole composite cable is effectively protected, the tensile and torsion resistance of the whole composite cable is enhanced, the physical protection performance is better, and the phenomenon that the whole cable cannot normally work due to the composite cable under the action of the passive external force is prevented.

Description

Low-voltage power signal composite cable

Technical Field

The invention relates to the technical field of cables, in particular to a low-voltage power signal composite cable.

Background

The power cable is a cable with a large wire diameter, 3 cores or four cores generally, thicker interphase insulation and metal armor protection on the outer side, is mainly used for a power supply system as a main line of a three-phase industrial power supply or a single-phase civil power supply, and is widely applied to the manufacture and production of low-voltage power signal cables, namely the low-voltage power signal composite cable, because the composite material has the advantages of high strength, good designability, no creep deformation, corrosion resistance and convenience in use.

The existing composite cable has poor extrusion resistance, and the connecting position of the outer sheath and the core conductor is twisted and dislocated in practical application, so that the overall working effect of the cable is directly influenced.

Disclosure of Invention

In order to solve the technical problem, the invention provides a low-voltage power signal composite cable which comprises an outer sheath and a plurality of magnetic core conductors, wherein the outer sheath and the plurality of magnetic core conductors form the low-voltage power signal composite cable, a connecting layer positioned in an inner cavity of the outer sheath is sleeved outside the magnetic core conductors, an outer compression resistant layer is arranged between the magnetic core conductors and the opposite surface of the connecting layer, every two magnetic core conductors are connected through an inner compression resistant layer, one side of each magnetic core conductor, which is far away from the inner compression resistant layer, is provided with an inner compression resistant layer, and the inner compression resistant layer, the outer compression resistant layer and the inner compression resistant layer are all made.

In a preferred embodiment, the inner isolation layer and the outer compression-resistant layer are respectively attached to two opposite side walls of the magnetic core conductor, one side of the outer compression-resistant layer, which is away from the magnetic core conductor, is connected with a clamping groove of an inner cavity wall of the connecting layer, and a projection of the clamping groove on the outer compression-resistant layer covers the whole outer compression-resistant layer.

In a preferred embodiment, every two inner insulating layers are connected seamlessly, and the outer part of the magnetic core conductor is in an annular surrounding shape covering the whole magnetic core conductor.

In a preferred embodiment, the outer part of the connecting layer is provided with an outer insulating layer positioned on the inner cavity wall of the outer sheath, the outer insulating layer is made of flame retardant materials, and the inner side and the outer side of the inner insulating layer are made of the same material as the outer insulating layer.

The invention has the technical effects and advantages that:

when whole low pressure power signal composite cable receives external force to twist reverse, the extrusion, outer resistance to compression layer and interior resistance to compression layer deformation under the passive action of external force form transmission, buffer capacity between magnetic core conductor and oversheath to whole playing effectual protection to composite cable, reinforcing holistic stretch-proofing, torsional force, the physics barrier propterty is better, prevents to lead to the whole unable normal work of cable because of composite cable under the passive external force effect.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inner insulating layer according to the present invention;

FIG. 3 is a partial cross-sectional structural schematic view of the present invention as a whole;

fig. 4 is a partially enlarged view of the structure shown at a in fig. 2 according to the present invention.

Description of reference numerals: the outer sheath 1, the magnetic core conductor 2, the connecting layer 3, the outer insulating layer 41, the inner insulating layer 42, the outer pressure-resistant layer 43 and the inner pressure-resistant layer 44.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

As shown in fig. 1-4, a low voltage power signal composite cable comprises an outer sheath 1 and a plurality of magnetic core conductors 2, the outer portion of each magnetic core conductor 2 is sleeved with a connecting layer 3 positioned in the inner cavity of the outer sheath 1, an outer pressure resistant layer 43 is arranged between the magnetic core conductor 2 and the opposite surface of the connecting layer 3, each two magnetic core conductors 2 are connected through an inner pressure resistant layer 44, an inner insulating layer 42 is arranged on the side of the magnetic core conductor 2 away from the inner insulating layer 42, the outer pressure resistant layer 43 and the inner pressure resistant layer 44 are all made of elastic materials capable of restoring deformation, when the whole low voltage power signal composite cable is twisted and extruded by an external force, the inner insulating layer 42, the outer pressure resistant layer 43 and the inner pressure resistant layer 44 deform under the passive action of the external force, and transmission and buffering forces are formed between the magnetic core conductor 2 and the outer sheath 1, thereby effectively protecting the whole composite cable, the tensile and torsional force of the whole cable is enhanced, the physical protection performance is better, and the phenomenon that the whole cable cannot normally work due to the composite cable under the action of passive external force is prevented.

Interior insulating layer 42 laminates respectively on the double-phase opposite lateral wall of magnetic core conductor 2 with outer anti-compression layer 43, and one side that outer anti-compression layer 43 deviates from magnetic core conductor 2 links to each other with the draw-in groove of the cavity wall in articulamentum 3, the whole outer anti-compression layer 43 of projection cladding on anti-compression layer 43 outside, when anti-compression layer 43 bears passive external force and produces extrusion and deformation outside, produce certain extrusion force and deformation power between anti-compression layer 43 and articulamentum 3 outside, make the draw-in groove extrusion on the relative articulamentum 3 of outer anti-compression layer 43, deformation, interval space in the draw-in groove takes place the deformation to the passive force that whole composite cable received and provides the support, whole physical protective effect is better.

Every two interior insulating layer 42 between seamless linking to each other, and the annular that wraps whole magnetic core conductor 2 outside package form of encircleing of magnetic core conductor 2, the physical structure performance of magnetic core conductor 2 and other parts in the effectual adaptation cable of annular encircleing form adapts to the deformation of cable construction under the whole passive external force effect, and the validity of physical protection is stronger.

The externally mounted of articulamentum 3 has outer insulating layer 41 that is located the outer sheath 1 inner chamber wall, outer insulating layer 41 comprises flame retardant material, the component material of the inside and outside both sides of interior insulating layer 42 is the same with the component material of outer insulating layer 41, inside and outside both sides and outer insulating layer 41 are whole in the interior insulating layer 42 that constitutes through flame retardant material, when the cable structure catches fire, play the effective isolation of inside and outside two parts, prevent that the intensity of a fire from spreading from inside to outside or by inside outside, the stability of whole composite cable work has further been guaranteed.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. The utility model provides a low pressure power signal composite cable, includes the oversheath and a plurality of magnetic core conductor that constitute low pressure power signal composite cable, its characterized in that: the outer cover of magnetic core conductor is equipped with the articulamentum that is located the oversheath inner chamber, installs outer resistance to compression layer between the opposite face of magnetic core conductor and articulamentum, and all link to each other through interior resistance to compression layer between per two magnetic core conductors, and isolated layer in isolated layer is installed to one side that the magnetic core conductor deviates from interior isolated layer, outer resistance to compression layer and interior resistance to compression layer constitute by the elastic material of restorable deformation.

2. A low voltage power signal composite cable according to claim 1, wherein: the inner isolation layer and the outer compression-resistant layer are respectively attached to two opposite side walls of the magnetic core conductor, one side, away from the magnetic core conductor, of the outer compression-resistant layer is connected with a clamping groove in the inner wall of the connecting layer, and the projection of the clamping groove on the outer compression-resistant layer coats the whole outer compression-resistant layer.

3. A low voltage power signal composite cable according to claim 2, wherein: every two inner isolation layers are connected seamlessly, and the outer part of the magnetic core conductor is in an annular surrounding shape which covers the whole magnetic core conductor.

4. A low voltage power signal composite cable according to claim 3, wherein: the outer isolation layer is arranged on the inner cavity wall of the outer sheath, the outer isolation layer is made of flame-retardant materials, and the inner side and the outer side of the inner isolation layer are made of the same materials as the outer isolation layer.