CN219696108U

CN219696108U - Insulating anti-interference control cable

Info

Publication number: CN219696108U
Application number: CN202320933752.8U
Authority: CN
Inventors: 曹哲远
Original assignee: Wuxi Qichuang Technology Co ltd
Current assignee: Wuxi Qichuang Technology Co ltd
Priority date: 2023-04-23
Filing date: 2023-04-23
Publication date: 2023-09-15
Anticipated expiration: 2033-04-23

Abstract

The utility model discloses an insulating anti-interference control cable, which relates to the technical field of control cables and comprises a plurality of conductors distributed in an annular array, wherein the outer surfaces of all the conductors are sleeved with insulating layers, the outer surfaces of all the insulating layers are sleeved with inner liners together, the outer surfaces of the inner liners are sleeved with shielding layers, and the outer surfaces of the shielding layers are sleeved with outer jackets; the shielding layer comprises a plurality of shielding rings which are distributed in a linear array, the outer surface of the lining layer is fixedly sleeved with the shielding rings, the outer surface of each shielding ring is fixedly sleeved with the isolating rings, a shielding area is formed by surrounding the adjacent two isolating rings, insulating mud is arranged in the shielding area, and a plurality of metal strips are uniformly filled in the insulating mud. According to the utility model, the shielding effect of the control cable is improved by arranging the shielding layer, meanwhile, the control cable is ensured to have better flexibility, and the insulation effect of the control cable is effectively improved by arranging the insulation layer and the insulation mud to form double-layer insulation protection.

Description

Insulating anti-interference control cable

Technical Field

The utility model relates to the technical field of control cables, in particular to an insulating anti-interference control cable.

Background

The control cable belongs to the cable for the electrical equipment, and mainly aims at directly transmitting electric energy from a distribution point of a power system to a power supply connection line of various electrical equipment, wherein the rated voltage is 450/750V.

In order to improve the anti-interference capability of the control cable, a measure of adding a braided shielding wire is mostly adopted, the braided shielding wire is a shielding layer made of the same material as a conductor, and the shielding layer is arranged outside an insulator, so that the influence of electromagnetic force is absorbed by the shielding layer, and the anti-interference strength depends on the coating rate of the shielding layer. The larger the number of copper wires used, the stronger the anti-jamming capability. However, increasing the coverage rate in order to improve the anti-interference effect makes the control cable stiff. In view of this, we propose an insulated anti-interference control cable.

Disclosure of Invention

The utility model mainly aims to provide an insulating anti-interference control cable which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the insulating anti-interference control cable comprises a plurality of conductors distributed in an annular array, wherein insulating layers are sleeved on the outer surfaces of all the conductors, an inner liner layer is sleeved on the outer surfaces of all the insulating layers, a shielding layer is sleeved on the outer surface of the inner liner layer, and an outer sheath is sleeved on the outer surface of the shielding layer; the shielding layer comprises a plurality of shielding rings which are distributed in a linear array, the outer surface of the lining layer is fixedly sleeved with the shielding rings, the outer surface of each shielding ring is fixedly sleeved with the isolating rings, a shielding area is formed by surrounding the adjacent two isolating rings, insulating mud is arranged in the shielding area, and a plurality of metal strips are uniformly filled in the insulating mud.

Preferably, the width of the shielding ring is larger than that of the isolating ring, and the outer surface of the isolating ring is in close contact with the inner wall of the outer sheath.

Preferably, the inner liner is composed of an outer wrapping portion and an inner supporting portion, the outer wrapping portion is located on the outer side of all the insulating layers, the outer wrapping portion is used for wrapping all the insulating layers, the inner supporting portion is located between all the insulating layers, and the inner supporting portion is used for isolating two adjacent insulating layers.

Preferably, the outer surface of the insulating layer is wound with a wrapping layer, and the wrapping layer is located between the insulating layer and the outer wrapping portion.

Preferably, the control cable has a cross-sectional area of no more than 10 square millimeters.

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

1. the shielding effect of the control cable is improved through the arrangement of the shielding layer, and meanwhile, the better flexibility of the control cable is ensured, wherein a main shielding area of the shielding layer is formed through the mixture of the insulating mud and the metal thin strips, the influence of electromagnetic force on the control cable is absorbed through the metal thin strips consistent with the conductor material, flexible connection is realized among the metal thin strips through the insulating mud, and the stiffness of the control cable is reduced by utilizing the fluid property of the insulating mud;

2. through arranging a plurality of shielding areas on the isolating ring, if the outer sheath at one position of the control cable is damaged, and then the insulating mud at the position leaks out, the isolating ring effectively blocks the insulating mud at other positions from leaking out, so that the cost of later maintenance is reduced, and the practicability is improved;

3. through setting up insulating layer and insulating mud and forming double-deck insulation protection, effectively improved control cable's insulating effect.

Drawings

Fig. 1 is a schematic structural view of the entire control cable proposed in the present embodiment;

fig. 2 is a schematic structural view of an inner liner in the present embodiment;

fig. 3 is a schematic view of a part of the structure of the shielding layer in the present embodiment;

fig. 4 is a schematic cross-sectional view of a shielding layer in this embodiment.

In the figure: 1. a conductor; 2. an insulating layer; 3. an inner liner layer; 4. a shielding layer; 5. an outer sheath; 31. an outer wrap; 32. an inner support part; 41. a spacer ring; 42. a shielding ring; 43. a shielding region; 44. insulating mud; 45. metal strips.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-4, an insulated anti-interference control cable comprises a plurality of conductors 1 distributed in an annular array, in this embodiment, three conductors 1 are distributed in a delta shape, the conductors 1 are made of high-purity anaerobic stranded copper, the outer surfaces of all the conductors 1 are sleeved with insulating layers 2, the insulating layers 2 are made of high-quality PVC/A, the outer surfaces of all the insulating layers 2 are sleeved with inner liners 3, the outer surfaces of the inner liners 3 are sleeved with shielding layers 4, the outer surfaces of the shielding layers 4 are sleeved with outer jackets 5, and the outer jackets are made of high-quality PVC/ST5; the shielding layer 4 comprises a plurality of shielding rings 42 distributed in a linear array, the shielding rings 42 are made of oxygen-free copper, the shielding rings 42 are fixedly sleeved on the outer surface of the lining layer 3, the isolating rings 41 are fixedly sleeved on the outer surface of the shielding rings 42, a shielding region 43 is formed by surrounding the adjacent two isolating rings 41, insulating mud 44 is arranged in the shielding region 43, a plurality of metal thin strips 45 are uniformly filled in the insulating mud 44, and in the embodiment, the metal thin strips 45 are made of oxygen-free copper wires.

The main shielding area of the shielding layer 4 is formed by the mixture of the insulating mud 44 and the metal thin strips 45, the metal thin strips 45 which are consistent with the material of the conductor 1 absorb the influence of electromagnetic force on the control cable, flexible connection is realized among the metal thin strips 45 by the insulating mud 44, and the stiffness of the control cable is reduced by utilizing the fluid property of the insulating mud 44.

In order to improve the shielding effect of the connection area between the shielding ring 42 and the insulating paste 44, in this embodiment, the width of the shielding ring 42 is larger than that of the isolating ring 41, and the outer surface of the isolating ring 41 is in close contact with the inner wall of the outer sheath 5.

In order to reduce interference between adjacent conductors 1, in this embodiment, the inner liner 3 is composed of an outer wrapping portion 31 and an inner supporting portion 32, the outer wrapping portion 31 is located outside all the insulation layers 2, the outer wrapping portion 31 is used for wrapping all the insulation layers 2, the inner supporting portion 32 is located between all the insulation layers 2, and the inner supporting portion 32 is used for isolating two adjacent insulation layers 2. The three conductors 1 are isolated from each other by the outer wrapping portion 31 and the inner supporting portion 32, so that mutual interference between the conductors 1 is reduced.

Specifically, the outer surface of the insulating layer 2 is wound with a wrapping layer, and the wrapping layer is located between the insulating layer 2 and the outer wrapping portion 31.

Specifically, the cross-sectional area of the control cable is not more than 10 square millimeters, and the cross-sectional area of the control cable is 1-6 square millimeters.

Specifically, the production standard of the control cable is GB/T9330.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an insulating anti-interference control cable, includes several conductor (1) that are annular array and distribute, its characterized in that: the outer surfaces of all the conductors (1) are sleeved with insulating layers (2), the outer surfaces of all the insulating layers (2) are sleeved with inner liners (3) together, the outer surfaces of the inner liners (3) are sleeved with shielding layers (4), and the outer surfaces of the shielding layers (4) are sleeved with outer jackets (5); the shielding layer (4) comprises a plurality of shielding rings (42) which are distributed in a linear array, the shielding rings (42) are fixedly sleeved on the outer surface of the lining layer (3), the outer surfaces of the shielding rings (42) are fixedly sleeved with isolating rings (41), a shielding region (43) is formed between every two adjacent isolating rings (41) in a surrounding mode, insulating mud (44) is arranged in the shielding region (43), and a plurality of metal thin strips (45) are uniformly filled in the insulating mud (44).

2. An insulated anti-interference control cable according to claim 1, characterized in that: the width of the shielding ring (42) is larger than that of the isolating ring (41), and the outer surface of the isolating ring (41) is tightly contacted with the inner wall of the outer sheath (5).

3. An insulated anti-interference control cable according to claim 1, characterized in that: the inner liner (3) is composed of an outer wrapping part (31) and an inner supporting part (32), the outer wrapping part (31) is located on the outer side of all the insulating layers (2), the outer wrapping part (31) is used for wrapping all the insulating layers (2), the inner supporting part (32) is located between all the insulating layers (2), and the inner supporting part (32) is used for isolating two adjacent insulating layers (2).

4. An insulated anti-interference control cable according to claim 3, characterized in that: the outer surface of the insulating layer (2) is wound with a wrapping layer, and the wrapping layer is positioned between the insulating layer (2) and the outer wrapping part (31).

5. An insulated anti-interference control cable according to claim 1, characterized in that: the control cable has a cross-sectional area of no more than 10 square millimeters.