Multi-core compressed conductor cable

Abstract

The utility model relates to the technical field of cables, in particular to a multi-core compressed conductor cable, which comprises a protective sleeve, a glass fiber wrapping tape is attached and connected in the protective sleeve, a filling layer is arranged on the inner side of the glass fiber wrapping tape, four conductive mechanisms distributed annularly are arranged in the filling layer, each conductive mechanism comprises a central conductor, and the central conductor is arranged in the protective sleeve. The outer side of the central conductor is provided with a plurality of third sector-ring conductors which are distributed in an annular manner, the outer sides of the plurality of third sector-ring conductors which are distributed in an annular manner are provided with a plurality of second sector-ring conductors which are distributed in an annular manner, and the outer sides of the plurality of second sector-ring conductors which are distributed in an annular manner are provided with a plurality of first sector-ring conductors which are distributed in an annular manner. The outer sides of the plurality of annularly distributed first sector ring conductors are wrapped with cross-linked insulating layers; through installation of multiple groups of conductors, the conductive area of the cable is increased, the loading capacity of the cable is improved, and the cable has good insulation and high temperature resistance, so that the work of the cable is safer.

Description

Technical Field

[0001] This utility model relates to an insulated cable, specifically a multi-core compacted conductor cable, belonging to the field of cable technology. Background Technology

[0002] A cable is a device for transmitting electrical energy or signals, usually consisting of several or groups of conductors. With the development of the manufacturing industry, there are various types of cables, and different cables are used in different fields. Cables play an important role in the process of power transmission.

[0003] However, traditional cables have only a single conductor inside, resulting in low load capacity and a lack of good internal insulation protection. This can lead to leakage when the cable sheath is damaged. In addition, they have poor high-temperature resistance and are very unsafe. Utility Model Content

[0004] The purpose of this invention is to provide a multi-core compacted conductor cable to solve the above problems. By installing multiple sets of conductors, the conductive area of ​​the cable can be increased, thereby improving the cable's load capacity. Furthermore, it can have good insulation and high-temperature resistance, making the cable safer to operate.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a multi-core compacted conductor cable includes a protective sheath, inside which a fiberglass wrapping tape is attached, and a filling layer is provided on the inner side of the fiberglass wrapping tape. Inside the filling layer, four conductive mechanisms are arranged in a ring. Each conductive mechanism includes a central conductor, and outside the central conductor, multiple third ring conductors are arranged in a ring. Outside the multiple third ring conductors, multiple second ring conductors are arranged in a ring. Outside the multiple second ring conductors, multiple first ring conductors are arranged in a ring. The multiple first ring conductors are wrapped with a cross-linked insulation layer.

[0006] Preferably, the four cross-linked insulating layers have marking strips on their inner sides, and the marking strips have a trapezoidal cross-section.

[0007] Preferably, both the fiberglass tape and the protective sleeve are cylindrical structures, and the outer side of the fiberglass tape is tightly fitted to the inner side of the protective sleeve.

[0008] Preferably, the central conductor has a cylindrical structure, and the cross-sections of the first sector ring conductor, the second sector ring conductor, and the third sector ring conductor are all sector-shaped.

[0009] Preferably, the outer periphery of the third sector conductor is in close contact with the inner side of the second sector conductor, and the outer periphery of the second sector conductor is in close contact with the inner side of the first sector conductor.

[0010] Preferably, the central angle of the third sector conductor is in the range of 60°-120°, and the length ratio of the short arc to the long arc is in the range of 1:2.4-1:3.

[0011] Preferably, the central angle of the second sector conductor is in the range of 30°-36°, and the length ratio of the short arc to the long arc is in the range of 1:1.4-1.2.

[0012] Preferably, the central angle of the first sector conductor is in the range of 20°-24°, and the length ratio of the short arc to the long arc is in the range of 1:1.2-1:1.6.

[0013] The beneficial effects of this utility model are as follows: by using four conductors with the central conductor as the center and the first, second, and third ring conductors wrapped around the outside in sequence, the cable becomes more compact and has a better load capacity. The installation of the cross-linked insulation layer helps to provide insulation protection and prevent leakage. The filling layer helps to prevent the conductor from loosening. Furthermore, the installation of fiberglass tape and protective sleeve helps to protect the outside of the cross-linked insulation layer and prevent damage to the cable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the fiberglass tape and the protective sleeve of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the first sector conductor and the cross-linked insulating layer of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the third sector ring conductor of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the second sector ring conductor of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the first sector conductor of this utility model.

[0020] In the diagram: 1. Protective sleeve; 2. Fiberglass wrapping tape; 3. Filling layer; 4. Conductive mechanism; 41. Center conductor; 42. Cross-linked insulation layer; 43. First sector ring conductor; 44. Second sector ring conductor; 45. Third sector ring conductor; 46. Marking strip. Detailed Implementation

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please see Figure 1-6 As shown, a multi-core compacted conductor cable includes a protective sleeve 1. A fiberglass wrapping tape 2 is attached to the inside of the protective sleeve 1. A filling layer 3 is provided inside the fiberglass wrapping tape 2. Four conductive mechanisms 4 are arranged in a ring inside the filling layer 3. Each conductive mechanism 4 includes a central conductor 41. Multiple third-sector conductors 45 are arranged in a ring outside the central conductor 41. Multiple second-sector conductors 44 are arranged in a ring outside the multiple third-sector conductors 45. Multiple first-sector conductors 43 are arranged in a ring outside the multiple second-sector conductors 44. A cross-linked insulation layer 42 is wrapped around the multiple first-sector conductors 43.

[0023] As a technical optimization of this utility model, the inner sides of the four cross-linked insulating layers 42 are provided with marking strips 46. The cross-section of the marking strips 46 is a trapezoidal structure. By installing the marking strips 46 of different colors, it is convenient to identify the phase of the conductor, which facilitates installation and maintenance.

[0024] As a technical optimization of this utility model, both the fiberglass wrapping tape 2 and the protective sleeve 1 are cylindrical structures. The outer side of the fiberglass wrapping tape 2 is tightly fitted to the inner side of the protective sleeve 1. The installation of the fiberglass wrapping tape 2 facilitates the protection of the inside of the cable and provides wear resistance, high temperature resistance, and insulation.

[0025] As a technical optimization of this utility model, the central conductor 41 has a cylindrical structure, and the cross-sections of the first fan-ring conductor 43, the second fan-ring conductor 44, and the third fan-ring conductor 45 are all fan-shaped structures. The fan-ring structure can make the contact surface between the conductors more compact, the conductor compression coefficient is higher, and the conductor distribution is more uniform.

[0026] As a technical optimization of this utility model, the outer periphery of the third sector conductor 45 is closely fitted with the inner side of the second sector conductor 44, and the outer periphery of the second sector conductor 44 is closely fitted with the inner side of the first sector conductor 43. This facilitates fewer gaps inside the cable, regular distribution of conductors inside the cable, a more compact cable structure, saves laying space, and thereby increases the current carrying capacity of the cable.

[0027] As a technical optimization of this utility model, the central angle of the third sector conductor 45 is in the range of 60°-120°, and the length ratio of the short arc to the long arc is in the range of 1:2.4-1:3, which is beneficial to reducing the number of multiple third sector conductors 45, thereby making the multiple third sector conductors 45 tightly wrap around the center conductor 41.

[0028] As a technical optimization of this utility model, the central angle of the second sector ring conductor 44 is in the range of 30°-36°, and the length ratio of the short arc to the long arc is in the range of 1:1.4-1.2. The smaller range of the central angle and the length ratio of the short arc to the long arc of the second sector ring conductor 44, the more conductors are, which enables multiple second sector ring conductors 44 to be tightly fitted together in sequence.

[0029] As a technical optimization of this utility model, the central angle of the first sector ring conductor 43 is in the range of 20°-24°, and the length ratio of the short arc to the long arc is in the range of 1:1.2-1:1.6. The smaller range of the central angle and the length ratio of the short arc to the long arc of the first sector ring conductor 43, the more conductors are, which enables multiple first sector ring conductors 43 to be tightly fitted together in sequence.

[0030] In use, this invention first shapes conductors of different types through wire holes of different shapes, making the center conductor 41 a cylindrical structure. The first sector conductor 43, the second sector conductor 44, and the third sector conductor 45 are pulled out into sector structures at different angles. Then, the third sector conductor 45, the second sector conductor 44, and the first sector conductor 43 are twisted together on the outer surface of the center conductor 41 by the equipment and wrapped around each other. Next, the cross-linked insulation layer 42 is tightly wrapped around the outside of the multiple first sector conductors 43 to achieve insulation protection. Finally, a filling layer 3 is provided between the glass fiber wrapping tape 2 and the four cross-linked insulation layers 42 to fill the gap. The cable is safely protected by the glass fiber wrapping tape 2 and the protective sleeve 1.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-core compacted conductor cable, comprising a protective sheath (1), characterized in that: The protective sleeve (1) is fitted with a glass fiber tape (2) inside. The glass fiber tape (2) has a filling layer (3) inside. The filling layer (3) has four conductive mechanisms (4) arranged in a ring. The conductive mechanism (4) includes a central conductor (41). The central conductor (41) has multiple third ring conductors (45) arranged in a ring outside. The third ring conductors (45) have multiple second ring conductors (44) arranged in a ring outside. The second ring conductors (44) have multiple first ring conductors (43) arranged in a ring outside. The first ring conductors (43) are wrapped with a cross-linked insulating layer (42).

2. The multi-core compacted conductor cable according to claim 1, characterized in that: The four cross-linked insulating layers (42) are provided with marking strips (46) on their inner sides, and the marking strips (46) have a trapezoidal cross-section.

3. A multi-core compacted conductor cable according to claim 1, characterized in that: Both the fiberglass wrapping tape (2) and the protective sleeve (1) are cylindrical structures, and the outer side of the fiberglass wrapping tape (2) is tightly fitted to the inner side of the protective sleeve (1).

4. A multi-core compacted conductor cable according to claim 1, characterized in that: The central conductor (41) has a cylindrical structure, and the cross-sections of the first sector ring conductor (43), the second sector ring conductor (44), and the third sector ring conductor (45) are all sector-shaped.

5. A multi-core compacted conductor cable according to claim 1, characterized in that: The outer periphery of the third sector conductor (45) is in close contact with the inner side of the second sector conductor (44), and the outer periphery of the second sector conductor (44) is in close contact with the inner side of the first sector conductor (43).

6. A multi-core compacted conductor cable according to claim 1, characterized in that: The central angle of the third sector conductor (45) ranges from 60° to 120°, and the length ratio of the short arc to the long arc ranges from 1:2.4 to 1:

3.

7. A multi-core compacted conductor cable according to claim 1, characterized in that: The central angle of the second sector conductor (44) ranges from 30° to 36°, and the length ratio of the short arc to the long arc ranges from 1:1.4 to 1.

2.

8. A multi-core compacted conductor cable according to claim 1, characterized in that: The central angle of the first sector conductor (43) ranges from 20° to 24°, and the length ratio of the short arc to the long arc ranges from 1:1.2 to 1:1.6.

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