Composite power cable used in multiple scenes

Abstract

The utility model discloses a composite power cable used in multiple scenes, and aims to provide a power cable which has a multi-layer structure and can be suitable for most scenes, and the main points of the technical scheme are that the power cable comprises a cable body which has a composite cable core structure; the composite cable core structure comprises an electric power wire, a wire framework, an optical fiber communication wire and a self-adaptive protection layer wrapping the composite cable core structure, the electric power wire is located in the center of the cable body and is formed by twisting a plurality of silver-plated copper conductors, and an insulation isolation layer is arranged on the outer side of the electric power wire; the wire framework comprises a framework main body, a hollow part which is arranged on the framework main body and is used for allowing an electric power wire to pass through, and limiting grooves which are uniformly distributed on the framework main body along the length direction and are used for fixing an optical fiber communication wire. The wire framework is suitable for the technical field of wires and cables.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of composite multi-scene use power cable, more specifically, it relates to a kind of power cable with multi-layer composite structure, applicable to most scenes. BACKGROUND

[0002] Cable is a kind of electric energy or signal transmission device, usually by several or several groups of wire stranded rope-like device, each wire piece is insulated, usually with a wire as center ring around twist, outer layer is provided with highly insulated covering, according to performance can be divided into power cable, signal cable, control cable, compensation cable etc.

[0003] The existing cable protection layer is usually only provided with outer layer protection layer or other single-layer protection structure, which cannot meet the use requirements of some specific installation sites. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a kind of power cable with multi-layer composite structure, applicable to most scenes.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of composite multi-scene use power cable, including cable body, the cable body is composite cable core structure, the composite cable core structure includes: power conductor, wire skeleton, optical fiber communication conductor and the self-adapting protective layer covered in composite cable core structure outside, the power conductor is located at cable body center and is twisted by multiple silver-plated copper conductors, the outer side of the power conductor is provided with insulating isolation layer, the wire skeleton includes skeleton main body, hollow portion for power conductor is passed and is set on skeleton main body and is used for the limiting slot for fixing optical fiber communication conductor and is evenly distributed on skeleton main body along the length direction.

[0006] By adopting the above technical scheme, the composite cable core structure of the utility model cable includes power conductor, wire skeleton, optical fiber communication conductor and self-adapting protective layer, the insulating isolation layer provided on the outer side of power conductor can basically isolate the interference of outside and prevent short circuit, the structure that wire skeleton is hollow inside and evenly distributes limiting slot along the length direction helps it to cooperate with power conductor and optical fiber communication conductor, and plays the limiting fixed role to power conductor and optical fiber communication conductor.

[0007] The utility model is further provided as follows: the skeleton main body of the wire skeleton is formed by extruding and shaping on insulating isolation layer by covering forming device, the limiting slot is formed on skeleton main body by traction skeleton main body and then by groove turning tool.

[0008] Through adoption of the technical scheme, the wire framework is shaped by extrusion on the insulating isolation layer through the over-molding device, the shaping mode is similar to the existing cable outer layer shaping mode and is convenient to operate, the limiting groove is shaped by the traction framework main body and the groove milling tool, the shaping mode is relatively common and easy to realize.

[0009] The utility model further sets up: as Figure Two The longitudinal section of the limiting groove is in a structure of small at the top and large at the bottom, the limiting groove comprises a semicircular flared structure, a trapezoidal necked structure and a guide slot structure connected in sequence, the ratio between the area of the semicircular flared structure and the area of the trapezoidal necked structure is between 1.50 and 1.55, the ratio between the depth H1 of the semicircular flared structure and the depth H2 of the trapezoidal necked structure is between 0.8 and 0.9, and the ratio between the depth H2 of the trapezoidal necked structure and the depth H3 of the guide slot structure is between 3 and 4.

[0010] Through adoption of the technical scheme, the longitudinal section of the limiting groove is in a structure of small at the top and large at the bottom, the semicircular flared structure, the trapezoidal necked structure and the guide slot structure connected in sequence can play a role of wrapping and fixing the optical fiber communication wire, the structure is beneficial to the conventional processing instrument processing mode, the production efficiency is higher, the ratio between the area of the semicircular flared structure and the area of the trapezoidal necked structure can limit the activity area of the optical fiber communication wire, and the optical fiber communication wire will not be damaged, as Figure Two shown, by controlling the ratio between H1 and H2 to be between 0.8 and 0.9, the optical fiber communication wire will not be too loose to fall off after entering the limiting groove, and the inner wall will not be damaged due to the too narrow space of the limiting groove, by controlling the ratio between H2 and H3 to be between 3 and 4, the optical fiber communication wire is convenient to install and is not easy to fall out of the guide slot.

[0011] The utility model further sets up: the optical fiber communication wire comprises a plurality of bending micro-beam optical fiber groups parallel around the power wire outside, each bending micro-beam optical fiber group surface is further equipped with electromagnetic barrier isolation layer, the self-adapting protection layer comprises the anti-kink braided layer and the outer protection layer in contact with the wire framework.

[0012] By adopting the technical scheme, the structure scheme that the optical fiber communication conductor adopts multiple optical fiber groups arranged separately can improve the connection stability of the power conductor, when a certain optical fiber group fails, the other optical fiber groups can still operate normally, the connection stability is improved, the electromagnetic barrier isolation layer arranged on the surface of the bending micro-beam optical fiber group can isolate the electromagnetic interference inside and outside to improve the connection communication stability of the internal optical fiber group, the self-adaptive protection layer includes the anti-kinking braid layer and the outer protection layer, the anti-kinking braid layer as the inner layer can improve the anti-kinking strength of the whole cable to prevent the cable structure from being damaged due to the kinking of the cable itself, and the outer protection layer can avoid the working structure inside the cable from being exposed to the outside, and the basic operation environment of the internal structure of the cable is ensured.

[0013] The utility model further sets up: the conductor framework material selects one of thermoplastic polyurethane or polystyrene system.

[0014] By adopting the technical scheme, the material of the conductor framework adopts one of thermoplastic polyurethane or polystyrene system, the two kinds of materials all have good thermoplasticity and meet the processing technology of the second conductor framework, and the thermoplastic polyurethane is a linear polymer, which has high strength, high toughness, wear resistance, oil resistance and other excellent properties, and the material of polystyrene system has good heat insulation, insulation and transparency, and is also a common power equipment material.

[0015] The utility model further sets up: the anti-kinking braid layer adopts the mixed weaving structure of aramid fiber and conductive metal wire.

[0016] By adopting the technical scheme, the anti-kinking braid layer adopts the mixed weaving structure of aramid fiber and conductive metal wire, and the structure strength of the anti-kinking braid layer can be further strengthened by the cooperation of the tough aramid fiber material and the conductive metal wire. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure One It is the sectional view of the composite multi-scene power cable embodiment of the utility model;

[0018] Figure Two It is the perspective view of the composite multi-scene power cable embodiment of the utility model;

[0019] Wherein the reference signs are: 1, power conductor;2, conductor framework;3, optical fiber communication conductor;4, insulation isolation layer;5, hollow part;6, limiting groove;7, bending micro-beam optical fiber group;8, electromagnetic barrier isolation layer;9, anti-kinking braid layer;10, outer protection layer. DETAILED DESCRIPTION

[0020] REFERENCE Figures One to Two The composite multi-scene power cable embodiment of the utility model is further explained.

[0021] For ease of description, spatially relative terms, such as "up", "down", "left", "right", "front", "back", "rear", "side", "lower", "upper" and the like, can be used herein for the purpose of illustrating one element or feature's relationship to another element or feature, as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is inverted, elements described as being on the "lower" side of other elements or features would then be oriented on "upper" sides thereof. Thus, the exemplary term "lower" can encompass both an orientation of "lower" and "upper", depending on the particular orientation of the device. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0022] Also, terms such as "first" and "second", etc. are used herein only to distinguish one from another of a same name, and do not necessarily require or imply a sequence or order of elements, or a relationship of any such elements to each other.

[0023] The utility model provides a kind of composite multi-scene use power cable, including cable body, the cable body is composite cable core structure, the composite cable core structure includes: power conductor 1, conductor framework 2, optical fiber communication conductor 3 and adaptive protective layer covered in composite cable core structure outside, the power conductor 1 is located at cable body center and is twisted by multiple silver-plated copper conductors, the outside of power conductor 1 is equipped with insulating isolation layer 4, the conductor framework 2 includes framework main body, hollow part 5 for being arranged on framework main body and being used for power conductor 1 to pass and limit slot 6 for being uniformly distributed on framework main body and being used for fixed optical fiber communication conductor 3, the utility model cable composite cable core structure includes power conductor 1, conductor framework 2, optical fiber communication conductor 3 and adaptive protective layer, the insulating isolation layer 4 equipped with outside of power conductor 1 can substantially isolate external interference and prevent short circuit, the structure of the hollow part in the inside and the limit slot 6 of uniformly distributed along the length direction of conductor framework 2 helps it cooperate with power conductor 1 and optical fiber communication conductor 3, and the limit fixed effect of power conductor 1 and optical fiber communication conductor 3, specifically, the optical fiber communication conductor 3 includes a plurality of bending micro-beam optical fiber groups 7 around the outside of power conductor 1, each bending micro-beam optical fiber group 7 surface is also equipped with electromagnetic barrier isolation layer 8, the adaptive protective layer includes anti-kink braiding layer 9 and outer protective layer 10 in contact with conductor framework 2, the anti-kink braiding layer 9 adopts the mixed braiding structure of aramid fiber and conductive wire, by adopting the above structure, the structure scheme of the separately arranged multiple optical fiber groups of optical fiber communication conductor 3 can improve the connection stability of power conductor 1, when certain optical fiber group fails, other optical fiber groups can normally operate, increase fault tolerance, the electromagnetic barrier isolation layer 8 equipped with on the surface of bending micro-beam optical fiber group 7 can isolate internal and external electromagnetic interference and improve the connection communication stability of internal optical fiber group, the adaptive protective layer includes anti-kink braiding layer 9 and outer protective layer 10, the anti-kink braiding layer 9 as inner layer can improve the anti-kink strength of cable as a whole and prevent the damage of cable structure due to the kink of cable itself in use, and the outer protective layer 10 can avoid the working structure inside cable from being exposed to air to ensure the basic operating environment of cable internal structure, and the anti-kink braiding layer 9 adopts the mixed braiding structure of aramid fiber and conductive wire, and the structure strength of anti-kink braiding layer 9 can be further strengthened by the cooperation of tough aramid fiber material and conductive wire, improve its tensile resistance and torsional resistance.

[0024] Further, the framework main body of the conductor framework 2 is shaped by extrusion on the insulating isolation layer 4 by a covering forming device, the limit slot 6 is formed on the framework main body by pulling the framework main body and a slotting tool, the conductor framework 2 is shaped by extrusion on the insulating isolation layer 4 by a covering forming device, the forming mode is similar to the existing cable outer layer forming mode and is easy to operate, the limit slot 6 is formed by pulling the framework main body and a slotting tool, the forming mode is relatively common and easy to realize, and is convenient for subsequent batch production.

[0025] Secondly, such as Figure Two As shown, the longitudinal cross-section of the limiting groove 6 on the conductor frame 2 has a structure that is smaller at the top and larger at the bottom. The limiting groove 6 includes a semi-circular flared structure, a trapezoidal constricted structure, and a guide groove structure connected in sequence. The ratio between the area of ​​the semi-circular flared structure and the area of ​​the trapezoidal constricted structure is between 1.50 and 1.55; the ratio between the depth H1 of the semi-circular flared structure and the depth H2 of the trapezoidal constricted structure is between 0.8 and 0.9; and the ratio between the depth H2 of the trapezoidal constricted structure and the depth H3 of the guide groove structure is between 3 and 4. The longitudinal cross-section of the limiting groove 6, with its smaller top and larger bottom structure, including the semi-circular flared structure, trapezoidal constricted structure, and guide groove structure connected in sequence, can limit and fix the optical fiber communication conductor 3. This structure is also advantageous for conventional... The processing equipment method has higher production efficiency. The ratio of H1 to H2 is controlled between 0.8 and 0.9. When the ratio is less than 0.8, the optical fiber communication cable 3 is prone to loosening and falling off after entering the limiting groove 6 due to the large proportion of the hollow area. When the ratio is greater than 0.9, the space of the limiting groove 6 will be too narrow, which will damage the inner wall. By controlling the ratio of H2 to H3 between 3 and 4, it is convenient to install the optical fiber communication cable and it is not easy for it to fall out of the guide groove. When the ratio of the depth H2 of the trapezoidal constriction structure to the depth H3 of the guide groove structure is greater than 4, the hollow part of the limiting groove 6 will be too small, resulting in insufficient buffer space for the optical fiber communication cable 3 inside, which will easily damage the optical fiber. When the ratio is less than 3, the relative depth of the guide groove will be too large, which is not convenient for installation.

[0026] As a further optimization, the skeleton material is selected from either thermoplastic polyurethane or polystyrene. Both materials have good thermoplasticity and meet the processing technology of the second conductor skeleton 2. Thermoplastic polyurethane is a linear polymer with excellent properties such as high strength, high toughness, wear resistance, and oil resistance. Polystyrene has good heat insulation, electrical insulation, and transparency, and is also a common material for power equipment. When selecting materials, it is necessary to consider whether they have good thermoplasticity and insulation properties to meet basic production requirements. The strength of the material must also be considered. Materials with excessively high strength are prone to brittle fracture during use, while materials with insufficient strength will not be able to support the power conductor 1 and the optical fiber communication conductor 3 as a skeleton.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite power cable suitable for multiple applications, comprising a cable body, characterized in that, The cable body is a composite core structure, which includes: a power conductor (1), a conductor skeleton (2), an optical fiber communication conductor (3), and an adaptive protective layer covering the composite core structure. The power conductor (1) is located at the center of the cable body and is made of multiple silver-plated copper conductors twisted together. An insulating isolation layer (4) is provided on the outside of the power conductor (1). The conductor skeleton (2) includes a skeleton body, a hollow part (5) disposed on the skeleton body for the power conductor (1) to pass through, and a limiting groove (6) evenly distributed along the length direction on the skeleton body for fixing the optical fiber communication conductor (3).

2. The composite multi-scenario power cable according to claim 1, characterized in that, The main body of the conductor skeleton (2) is formed by extrusion molding on the insulating layer (4) by a covering molding device. The limiting groove (6) is formed on the main body of the skeleton by pulling the skeleton body and then by a grooving tool.

3. The composite multi-scenario power cable according to claim 1, characterized in that, The longitudinal section of the limiting groove (6) has a structure that is smaller at the top and larger at the bottom. The limiting groove (6) includes a semi-circular flared structure, a trapezoidal constricted structure and a guide groove structure connected in sequence. The ratio between the area of ​​the semi-circular flared structure and the area of ​​the trapezoidal constricted structure is between 1.50 and 1.

55. The ratio between the depth of the semi-circular flared structure and the depth of the trapezoidal constricted structure is between 0.8 and 0.9, and the ratio between the depth of the trapezoidal constricted structure and the depth of the guide groove structure is between 3 and 4.

4. A composite power cable for multiple applications according to claim 1, characterized in that, The optical fiber communication conductor (3) includes several bent micro-bundle optical fiber groups (7) that are parallel to the outside of the power conductor (1). Each bent micro-bundle optical fiber group (7) is also provided with an electromagnetic barrier isolation layer (8). The adaptive protection layer includes an anti-knot braided layer (9) that abuts against the conductor skeleton (2) and an outer protective layer (10).

5. A composite power cable for multiple applications according to claim 1, characterized in that, The conductor skeleton (2) is made of either thermoplastic polyurethane or polystyrene.

6. A composite multi-scenario power cable according to claim 4, characterized in that, The anti-knot braided layer (9) adopts a mixed braided structure of aramid fiber and conductive metal wire.

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