Power cable with modularized supporting assembly

Abstract

The utility model discloses a power cable with a modularized supporting assembly, and the power cable comprises an outer sheath, an armor layer, an outer belting layer, an outer shielding layer, a flame-retardant layer, a fireproof layer and an inner belting layer which are sequentially arranged from the outside to the inside, and the inner belting layer is internally provided with a supporting inner core and a plurality of cable cores. The cable core comprises a conductor, an insulating layer, an inner shielding layer and an inner sheath which are sequentially arranged from inside to outside, the supporting inner core is of a circular structure and is formed by splicing four supporting assemblies, the supporting assemblies are made of rubber materials, and each supporting assembly is provided with a through hole capable of containing the cable core. The power cable provided by the utility model has relatively good flame-retardant, fire-resistant and shielding performance, and the four supporting assemblies can be spliced into a circular supporting inner core, so that the supporting effect is good, and the four supporting assemblies can realize stable connection. The supporting assemblies are installed in a modularized mode, so that batch production can be achieved, different cable cores can be placed in the different supporting assemblies for pre-production, and therefore the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and more specifically to a power cable with a modular supporting component. Background Art

[0002] Wires and cables play a very important connecting role in my country's infrastructure. With the continuous development of science and technology in my country, the product performance of wires and cables has been greatly improved. Power cables are cables used to transmit and distribute electrical energy. They are used to transmit and distribute high-power electrical energy in the main lines of power systems.

[0003] The existing authorization publication number CN204991223U discloses a power cable with a fan-shaped electric core, four fan-shaped inner cores form a ring structure, the fan-shaped inner core is coated with a tape layer, and the four fan-shaped inner cores are respectively mounted on a cross-shaped rubber skeleton. The power cable uses the skeleton to support the inner core in the cable to enhance the strength of the inner core being squeezed, but when the power cable is produced, it is necessary to mount the inner core on the skeleton before making the shielding layer, armor layer, and outer sheath layer. It is difficult to achieve the pre-production of the inner core installed on the skeleton part, and the production efficiency is low. In addition, the shielding performance of the power cable is weak, and the external and internal magnetic fields are likely to interfere with the signal transmission. In addition, the flame retardant and fire resistance of the power cable are weak. When sparks are generated, the power cable is easy to burn and continue to spread, causing the fire to become larger. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provides a power cable with a modular supporting component.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power cable, comprising an outer sheath, an armor layer, an outer tape layer, an outer shielding layer, a flame retardant layer, a fire resistant layer and an inner tape layer, which are arranged in sequence from the outside to the inside; a supporting inner core and a plurality of cable cores are arranged in the inner tape layer; the cable core has four, and the cable core comprises a conductor, an insulating layer, an inner shielding layer and an inner sheath, which are arranged in sequence from the inside to the outside; the structure of the supporting inner core is circular, and is formed by splicing four supporting components; the supporting component has a first plane, a second plane and an arcuate surface connecting the first plane and the second plane; the first plane and the second plane are perpendicular to each other; a trapezoidal convex rib is arranged at the first plane, and a trapezoidal groove matching the trapezoidal convex rib is arranged at the second plane; the trapezoidal convex rib at one of the two adjacent supporting components is inserted into the trapezoidal groove at the other supporting component; the supporting component is made of rubber, and a through hole capable of accommodating the cable core is provided at the supporting component; a notch connecting the through hole is provided at the arcuate surface.

[0006] Preferably, the supporting inner core extends along the length direction of the cable, and the notch extends along the length direction of the supporting component.

[0007] Thereby supporting the inner core to play a better supporting role, and opening the gap facilitates the installation of the cable core.

[0008] Preferably, the trapezoidal rib extends along the length direction of the support assembly.

[0009] Preferably, the trapezoidal rib is located at the center of the first plane.

[0010] Thereby, the four supporting components can be better fixed.

[0011] Preferably, the connection between the arcuate surface and the first plane and the second plane has an arcuate transition portion.

[0012] Thereby improving the strength and durability of the support assembly.

[0013] Preferably, the inner shielding layer is a tinned copper wire braided shielding layer, and the outer shielding layer is a copper wire braided shielding layer.

[0014] Thus, the cable has a double shielding layer and has a good shielding effect.

[0015] Preferably, the armor layer is a steel belt armor layer.

[0016] Thereby improving the mechanical properties of the cable.

[0017] Preferably, the fire-resistant layer is a ceramic silicone rubber fire-resistant layer.

[0018] Thereby enhancing the fire resistance of the cable.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The power cable of the present application has good flame retardant, fire resistant and shielding properties. The four supporting components can be spliced ​​into a circular supporting inner core, so that the supporting effect is good, and the four supporting components can achieve stable connection.

[0021] 2. The power cable of the present application realizes modular installation of the supporting components, thereby enabling mass production. Different cable cores can be placed in different supporting components for pre-production. When producing new orders, the supporting components with different cable cores can be combined as needed, thereby shortening the production cycle and completing the production plan more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the utility model from the first perspective;

[0023] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0024] Figure 3 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0025] Figure 4 This is a schematic diagram of the disassembly of some components.

[0026] Explanation of the reference numerals: 1 outer sheath; 2 armor layer; 3 outer tape layer; 4 outer shielding layer; 5 flame retardant layer; 6 fire-resistant layer; 7 inner tape layer; 8 supporting assembly; 8.1 first plane; 8.1.1 trapezoidal convex rib; 8.2 second plane; 8.2.1 trapezoidal groove; 8.3 arc surface; 8.4 through hole; 8.5 notch; 9 cable core; 9.1 conductor; 9.2 insulation layer; 9.3 inner shielding layer; 9.4 inner sheath. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides Figure 1-4 The power cable with modular support components shown in the figure comprises an outer sheath 1, an armor layer 2, an outer tape layer 3, an outer shielding layer 4, a flame retardant layer 5, a fire-resistant layer 6 and an inner tape layer 7 which are arranged in sequence from the outside to the inside. A support inner core and a plurality of cable cores 9 are arranged in the inner tape layer 7. The cable cores 9 have four. The cable cores 9 comprise a conductor 9.1, an insulating layer 9.2, an inner shielding layer 9.3 and an inner sheath 9.4 which are arranged in sequence from the inside to the outside. The structure of the support inner core is circular and is formed by splicing four support components 8. The support component 8 has a first plane 8.1, a second plane 8.2 and a connecting plane 8. The first plane 8.1 and the second plane 8.2 are arcuate surfaces 8.3, the first plane 8.1 and the second plane 8.2 are perpendicular to each other, a trapezoidal convex rib 8.1.1 is arranged at the first plane 8.1, a trapezoidal groove 8.2.1 matching the trapezoidal convex rib 8.1.1 is arranged at the second plane 8.2, the trapezoidal convex rib at one of the two adjacent support components is inserted into the trapezoidal groove at the other support component, the support component 8 is made of rubber, and the support component 8 has a through hole 8.4 capable of accommodating the cable core 9, and a notch 8.5 connecting the through hole 8.4 is arranged at the arcuate surface 8.3.

[0029] The supporting inner core extends along the length direction of the cable, and the notch 8.5 extends along the length direction of the supporting component 8; the trapezoidal rib 8.1.1 extends along the length direction of the supporting component 8; the connection between the arc surface 8.3 and the first plane 8.1 and the second plane 8.2 has an arc transition portion; the inner shielding layer 9.3 is a tinned copper wire braided shielding layer, and the outer shielding layer 4 is a copper wire braided shielding layer; the armor layer 2 is a steel belt armor layer; the fire-resistant layer 6 is a ceramic silicone rubber fire-resistant layer.

[0030] Working principle: The power cable of the present application has good flame retardant, fire resistant and shielding properties. The four support components can be spliced ​​into a circular support inner core, so that the support effect is good and can withstand external pressure and impact. And through the cooperation of trapezoidal convex ribs and trapezoidal grooves, the four support components can achieve stable connection. The support components realize modular installation, so that mass production can be achieved. Different cable cores can be placed in different support components for pre-production. When producing new orders, support components with different cable cores can be combined according to demand, so as to shorten the production cycle and complete the production plan faster. The support component is made of rubber material and has a certain deformation ability. It can be opened from the notch and the cable core can be placed in the through hole, thereby fixing the cable core at the support component.

[0031] Although the present invention has been illustrated and described with respect to preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A power cable with a modular support assembly, It is characterized in that The invention comprises an outer sheath (1), an armor layer (2), an outer tape layer (3), an outer shielding layer (4), a flame retardant layer (5), a fire resistant layer (6) and an inner tape layer (7) which are arranged in sequence from the outside to the inside. A supporting inner core and a plurality of cable cores (9) are arranged in the inner tape layer (7). The cable cores (9) have four. The cable cores (9) comprise a conductor (9.1), an insulating layer (9.2), an inner shielding layer (9.3) and an inner sheath (9.4) which are arranged in sequence from the inside to the outside. The supporting inner core has a circular structure and is formed by splicing four supporting components (8). The supporting component (8) comprises a first plane (8.1), a second plane (8.2) and a connecting plane (8.1) and a second plane (8.2). The first plane (8.1) and the second plane (8.2) are perpendicular to each other, a trapezoidal convex rib (8.1.1) is provided at the first plane (8.1), a trapezoidal groove (8.2.1) matching the trapezoidal convex rib (8.1.1) is provided at the second plane (8.2), the trapezoidal convex rib at one of two adjacent support assemblies is inserted into the trapezoidal groove at the other support assembly, the support assembly (8) is made of rubber, the support assembly (8) has a through hole (8.4) capable of accommodating the cable core (9), and a notch (8.5) communicating with the through hole (8.4) is provided at the arcuate surface (8.3).

2. The power cable with modular support assembly according to claim 1, It is characterized in that The supporting inner core extends along the length direction of the cable, and the notch (8.5) extends along the length direction of the supporting component (8).

3. The power cable with modular support assembly according to claim 1, It is characterized in that The trapezoidal convex rib (8.1.1) extends along the length direction of the support assembly (8).

4. The power cable with modular support assembly according to claim 1, It is characterized in that The connection points between the arcuate surface (8.3) and the first plane (8.1) and the second plane (8.2) all have arcuate transition portions.

5. The power cable with modular support assembly according to claim 1, It is characterized in that The inner shielding layer (9.3) is a tinned copper wire braided shielding layer, and the outer shielding layer (4) is a copper wire braided shielding layer.

6. The power cable with modular support assembly according to claim 1, It is characterized in that The armor layer (2) is a steel belt armor layer.

7. The power cable with modular support assembly according to claim 1, It is characterized in that The fire-resistant layer (6) is a ceramic silicone rubber fire-resistant layer.

Images