CN212380144U

CN212380144U - Composite multilayer aluminum alloy armored power cable

Info

Publication number: CN212380144U
Application number: CN202020893911.2U
Authority: CN
Inventors: 卢飞
Original assignee: Anhui Off Special Cable Technology Co ltd
Current assignee: Anhui Off Special Cable Technology Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-19
Anticipated expiration: 2030-05-25

Abstract

An object of the utility model is to provide a compound multilayer aluminum alloy armor power cable, including outer jacket, armor, interior sheath and sinle silk, outer jacket, armor, interior sheath are established from outside to inside coaxial bushing, the outside cladding insulating layer of sinle silk, be provided with first rubber layer between outer jacket and the armor, first rubber layer inlays in situ and is equipped with a plurality of first shielding slats, the second rubber layer has between armor and the interior sheath, the second rubber layer inlays in situ and is equipped with second shielding slat, first shielding slat is the same with second shielding slat quantity and its cross section is the arc, and a plurality of first shielding slats are crisscross annular distribution with a plurality of second shielding slats, and the central angle of first shielding slat arc cross section is the same with the central angle of second shielding slat arc cross section.

Description

Composite multilayer aluminum alloy armored power cable

Technical Field

The utility model relates to a cable specifically is a compound multilayer aluminum alloy armor power cable.

Background

The existing halogen-free low-smoke flame-retardant optical fiber composite armored cable consists of an optical unit, an insulating wire core, a filler, an inner sheath, an armor layer, an outer sheath and the like, wherein the halogen-free low-smoke flame-retardant polyolefin outer sheath is directly extruded outside a double-layer steel tape armor; because the halogen-free low-smoke flame-retardant polyolefin outer sheath is poor in tearing resistance, low in tensile strength and low in elongation at break, stress concentration is formed at the steel strip gap when the cable is bent and used, the outer sheath at the steel strip gap is prone to cracking due to the stress concentration, the cable is damaged, the service life is shortened, and the reliability is reduced.

In order to improve the tensile resistance of the outer sheath of the cable, the cable with the buffer layer appears on the market, the buffer layer is made of rubber materials and is arranged between the outer sheath and the armor layer, and the buffer layer is soft, so that the outer sheath is impacted by external force to be sunken inwards to a large extent, and the outer sheath is not broken under the action of the buffer layer, but is easy to deform.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound multilayer aluminum alloy armor power cable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a compound multilayer aluminum alloy armor power cable, includes outer jacket, armor, interior sheath and sinle silk, outer jacket, armor, interior sheath are from outside to inside coaxial cover and are established, the outside cladding insulating layer of sinle silk, be provided with first rubber layer between outer jacket and the armor, first rubber layer inlays in situ and is equipped with a plurality of first shielding slats.

As a further aspect of the present invention: and a second rubber layer is arranged between the armor layer and the inner protective layer, and a second shielding strip plate is embedded in the second rubber layer.

As a further aspect of the present invention: the first shielding slat is the same with second shielding slat quantity and its cross section is the arc, and a plurality of first shielding slats are crisscross annular distribution with a plurality of second shielding slats, and the central angle of first shielding slat arc cross-section is the same with the central angle of second shielding slat arc cross-section.

As a further aspect of the present invention: and a filling layer is arranged inside the inner protection layer.

As a further aspect of the present invention: the filling layer is flame-retardant filler.

As a further aspect of the present invention: the single wire cross section of the armor layer presents a Z shape.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has simple structure and convenient use, and the first shielding strip plate is embedded in the first rubber layer, so that the first shielding strip plate forms the framework of the first rubber layer, thereby improving the strength of the first rubber layer, and reducing the inward concave amplitude of the outer protective layer when the outer protective layer is impacted, thereby effectively avoiding the outer protective layer from being deformed under pressure on the premise of not influencing the buffering effect;

2. the second rubber layer is arranged between the armor layer and the inner protection layer, so that a buffering effect can be achieved between the armor layer and the inner protection layer, the bending resistance and the tensile resistance of the whole cable are further improved, the second shielding strip plate is embedded in the second rubber layer, and similarly, the second shielding strip plate forms a framework of the second rubber layer;

3. the cross sections of the first shielding strip plate and the second shielding strip plate are arc-shaped and distributed in a staggered annular mode, and the central angle of the arc-shaped cross section of the first shielding strip plate is the same as that of the arc-shaped cross section of the second shielding strip plate, so that the first shielding strip plate and the second shielding strip plate are staggered to form a complete circumferential shielding layer, and the shielding effect of the cable is improved.

Drawings

FIG. 1 is a schematic structural diagram of a composite multi-layer aluminum alloy armored power cable;

in the figure: the cable comprises an outer protective layer 1, an armor layer 2, an inner protective layer 3, a first rubber layer 4, a second rubber layer 5, a first shielding strip plate 6, a second shielding strip plate 7, a cable core 8, an insulating layer 9 and a filling layer 10.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1, in this embodiment, a composite multilayer aluminum alloy armored power cable includes an outer sheath 1, an armor layer 2, an inner sheath 3 and a wire core 8, where the outer sheath 1 and the inner sheath 3 are made of PVC material, the outer sheath 1, the armor layer 2 and the inner sheath 3 are coaxially sleeved from outside to inside, the armor layer 2 is formed by hinging a plurality of steel bars, and the single-wire cross section of the armor layer 2 is Z-shaped, so that each single-wire steel bar on the armor layer 2 can be mutually engaged to increase strength, the outer cladding insulating layer 9 of the wire core 8 and the wire core 8 are pure copper bare wires, a filling layer 10 is arranged inside the inner sheath 3, the filling layer 10 is made of flame-retardant filler, a first rubber layer 4 is arranged between the outer sheath 1 and the armor layer 2, and a plurality of first shielding strips 6 are embedded in the first rubber layer 4.

Establish first shielding slat 6 through inlaying in first rubber layer 4 to make first shielding slat 6 form the skeleton of first rubber layer 4, and then improve the intensity of first rubber layer 4, reduce its inside sunken range when outer jacket 1 receives the impact, thereby avoid its pressurized deformation effectively under the prerequisite that does not influence buffering effect.

In this embodiment, it is further, second rubber layer 5 has between armor 2 and the inner sheath 3, through the setting of second rubber layer 5 for can play the cushioning effect between armor 2 and the inner sheath 3, and then improve holistic bending resistance, tensile strength of cable, the embedded second shielding slat 7 that is equipped with in second rubber layer 5, and in the same way, second shielding slat 7 forms the skeleton on second rubber layer 5.

Preferably, first shielding slat 6 is the same with second shielding slat 7 quantity and its cross section is the arc, and a plurality of first shielding slats 6 are crisscross annular distribution with a plurality of second shielding slats 7, and the central angle of first shielding slat 6 arc cross-section is the same with the central angle of second shielding slat 7 arc cross-section to make and crisscross enclose into a complete circumference shielding layer between first shielding slat 6 and the second shielding slat 7, and then improve the shielding effect of cable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all the modifications of the equivalent structure or equivalent flow path using the contents of the specification and the drawings of the present invention, or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. The utility model provides a compound multilayer aluminum alloy armor power cable, includes outer jacket, armor, interior sheath and sinle silk, its characterized in that: the cable core is characterized in that the outer protection layer, the armor layer and the inner protection layer are coaxially sleeved from outside to inside, the outer portion of the cable core is coated with the insulating layer, a first rubber layer is arranged between the outer protection layer and the armor layer, and a plurality of first shielding strips are embedded in the first rubber layer.

2. The composite multi-layer aluminum alloy armored power cable of claim 1, wherein: and a second rubber layer is arranged between the armor layer and the inner protective layer, and a second shielding strip plate is embedded in the second rubber layer.

3. The composite multi-layer aluminum alloy armored power cable of claim 1, wherein: the first shielding slat is the same with second shielding slat quantity and its cross section is the arc, and a plurality of first shielding slats are crisscross annular distribution with a plurality of second shielding slats, and the central angle of first shielding slat arc cross-section is the same with the central angle of second shielding slat arc cross-section.

4. The composite multi-layer aluminum alloy armored power cable of claim 1, wherein: and a filling layer is arranged inside the inner protection layer.

5. The composite multi-layer aluminum alloy armored power cable of claim 4, wherein: the filling layer is flame-retardant filler.

6. The composite multi-layer aluminum alloy armored power cable of claim 1, wherein: the single wire cross section of the armor layer presents a Z shape.