Compact multi-core cable convenient to twist

Abstract

The utility model discloses a compact multi-core cable convenient to twist, which comprises leads, insulating layers, a filling layer and a protective layer, and is characterized in that a tin foil tape internal filling layer, a polyester tape internal filling layer and an insulating protective layer are arranged, so that the strong insulating layer is formed, the leads are better protected through the arrangement, and the service life of the leads is prolonged. Meanwhile, the tin foil tape and the polyester tape have high flexibility and certain elasticity, can adapt to bending and deformation of the cable in the twisting process, have certain mechanical strength and can ensure that the insulating layers cannot be damaged in the twisting process, and the foam layer, the elastic rubber layer and the fiber filling layer are arranged, so that the insulation performance of the cable is improved. According to the utility model, the stranded insulating layers can be tightly attached, certain viscosity and flexibility are achieved, good electrical performance can be ensured, and the working effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a compact multi-core cable which is convenient for twisting. Background Art

[0002] Cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. Multi-core cables refer to cables with more than one insulated core.

[0003] For example, the "Multi-core Cable" with publication number CN203456117U includes a central core, a filling layer is arranged outside the central core, a first shielding layer is arranged outside the filling layer, a first insulating layer is arranged outside the first shielding layer, a first sheath layer is arranged outside the first insulating layer, and a plurality of external cores wrapped with a second shielding layer are evenly distributed on the outer periphery of the first sheath layer, a second insulating layer is arranged on the outer periphery of the external core, and a second sheath layer is arranged on the outer periphery of the second insulating layer. This can avoid interference between adjacent cable signals during information transmission, ensure stable transmission of information, enhance the tensile strength of the cable, and also improve the transmission speed of information.

[0004] Although the above multi-core cable structure has certain advantages for information transmission, it still has certain disadvantages:

[0005] In the process of using multi-core cables, in order to reduce electromagnetic interference, multi-core cables need to be twisted according to needs, but the material used is not convenient for twisting, and the softness and ductility are poor, so it is impossible to twist them. At the same time, they cannot be tightened when twisted, which is dangerous. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides a compact multi-core cable that is easy to twist, thereby solving the above-mentioned problems.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: a compact multi-core cable that is easy to twist, including a conductor, an insulating layer, a filling layer and a protective layer, the insulating layer is wrapped around the outside of the conductor, the insulating layer provides insulation and protection for the conductor, and ensures that the conductor can work normally when twisted, the filling layer is wrapped around the outside of the insulating layer, the filling layer enhances the compactness of the insulating layer when twisted, the protective layer is wrapped around the outside of the filling layer, and the protective layer protects the cable.

[0010] Preferably, the insulating layer includes a tin foil inner filling layer, a polyester inner filling layer and an insulating protective layer, the tin foil inner filling layer is wrapped around the outside of the wire, the polyester inner filling layer is wrapped around the outside of the tin foil inner filling layer, and the insulating protective layer is wrapped around the outside of the polyester inner filling layer.

[0011] Preferably, the filling layer comprises a foam layer, an elastic rubber layer and a fiber filling layer, the foam layer is arranged on the outside of the insulating protective layer, the elastic rubber layer is wrapped on the outside of the foam layer, and the fiber filling layer is wrapped on the outside of the elastic rubber layer.

[0012] Preferably, the inner filling layer of the tin foil tape is made of metal tin foil as a base material and is closely fitted with the inner filling layer of the polyester tape, so it has good insulation and aging resistance, thereby increasing the service life.

[0013] Preferably, the insulating protective layer is made of polyolefin to enhance the protective effect of the insulating layer.

[0014] Preferably, the foam layer is composed of polyurethane foam and is bonded to the elastic rubber layer. The polyurethane foam has excellent elasticity, which enhances the support for the insulating layer and the insulating effect, while maintaining the tight twisting of the insulating layer during twisting.

[0015] Preferably, the fiber filling layer is composed of polyester fibers and is bonded to the elastic rubber layer, has strong softness and weavability, and maintains the tightness of the insulation layer.

[0016] (III) Beneficial effects

[0017] The utility model provides a compact multi-core cable that is easy to twist. It has the following beneficial effects: by setting the inner filling layer of the tin foil tape, the inner filling layer of the polyester tape and the insulating protective layer, a strong insulating layer is formed, and the wire is better protected by this setting. At the same time, the tin foil tape and the polyester tape have strong softness and certain elasticity, and can adapt to the bending and deformation of the cable during the twisting process, and have a certain mechanical strength, which can ensure that the insulating layer will not be damaged during the twisting process. By setting the foam layer, the elastic rubber layer and the fiber filling layer, the twisted insulating layers can be closely fitted, have a certain viscosity and softness, and can ensure good electrical performance and improve the working effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural perspective view of the utility model;

[0020] Figure 3 It is a structural plane analysis diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the insulating layer structure in the utility model;

[0022] Figure 5 It is a schematic diagram of the filling layer structure in the utility model.

[0023] In the figure: conductor 1, insulating layer 2, filling layer 3, protective layer 4, inner filling layer of tin foil tape 21, inner filling layer of polyester tape 22, insulating protective layer 23, foam layer 31, elastic rubber layer 32, fiber filling layer 33. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-3 The utility model provides a technical solution for a compact multi-core cable that is easy to twist: a compact multi-core cable that is easy to twist, comprising a conductor 1, an insulating layer 2, a filling layer 3 and a protective layer 4, the insulating layer 2 is wrapped around the outside of the conductor 1, the insulating layer 2 plays an insulating and protective role for the conductor 1, and at the same time ensures that the conductor 1 can work normally when twisted, the filling layer 3 is wrapped around the outside of the insulating layer 2, the filling layer 3 enhances the compact effect of the insulating layer 2 when twisted, the protective layer 4 is wrapped around the outside of the filling layer 3, and the protective layer 4 protects the cable.

[0026] See also Figure 4 and Figure 5The utility model provides a technical solution for a compact multi-core cable that is easy to twist: a compact multi-core cable that is easy to twist, comprising an insulating layer 2 comprising a tin foil tape internal filling layer 21, a polyester tape internal filling layer 22 and an insulating protective layer 23, the tin foil tape internal filling layer 21 is wrapped around the outside of the conductor 1, the polyester tape internal filling layer 22 is wrapped around the outside of the tin foil tape internal filling layer 21, the insulating protective layer 23 is wrapped around the outside of the polyester tape internal filling layer 22, the filling layer 3 comprises a foam layer 31, an elastic rubber layer 32 and a fiber filling layer 33, the foam layer 31 is arranged on the outside of the insulating protective layer 23, the elastic rubber layer 32 is wrapped around the outside of the foam layer 31, and the fiber filling layer 33 3 is wrapped on the outside of the elastic rubber layer 32, the inner filling layer 21 of the tin foil tape is made of metal tin foil as the base material, and is closely fitted with the inner filling layer 22 of the polyester tape, and has good insulation and aging resistance, and improves the service life, the insulating protection layer 23 is made of polyolefin, and enhances the protection effect of the insulating layer, the foam layer 31 is composed of polyurethane foam, and is fitted with the elastic rubber layer 32, the polyurethane foam has excellent elasticity, and enhances the support for the insulating layer and the insulation effect, and at the same time maintains the tight twisting of the insulating layer when twisting, the fiber filling layer 33 is composed of polyester fiber, and is fitted with the elastic rubber layer 32, and has strong softness and weavability, and maintains the tight effect of the insulating layer.

[0027] Here’s how it works:

[0028] First, the wire 1 needs to be wrapped with an insulating layer 2 for insulation protection, and the wire 1 is wrapped with a tin foil inner filling layer 21, and then the polyester tape inner filling layer 22 is attached to the outer side of the tin foil inner filling layer 21, and finally the insulating protective layer 23 is used to fix it, and finally the insulating layer 2 is formed, which can be insulated and protected and can facilitate twisting;

[0029] Second, the foam layer 31 is filled on the outside of the insulating layer 2, and then the elastic rubber layer 32 is used to wrap it, and finally the fiber filling layer 33 is filled between the elastic rubber layer 32 and the protective layer 4. This setting enhances the protection effect of the cable and ensures that the twisted insulating layer 2 can fit tightly, thereby enhancing the supporting and stabilizing effect thereof.

[0030] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0031] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compact multi-core cable that is easy to twist, comprising a conductor (1); Features: The cable also comprises an insulating layer (2), a filling layer (3) and a protective layer (4); the insulating layer (2) is wrapped around the outside of the conductor (1); the insulating layer (2) provides insulation protection for the conductor (1) and ensures that the conductor (1) can operate normally when twisted; the filling layer (3) is wrapped around the outside of the insulating layer (2); the filling layer (3) enhances the compactness of the insulating layer (2) when twisted; the protective layer (4) is wrapped around the outside of the filling layer (3); the protective layer (4) protects the cable.

2. A compact multi-core cable that is easy to twist according to claim 1, characterized in that: The insulating layer (2) comprises a tin foil inner filling layer (21), a polyester inner filling layer (22) and an insulating protective layer (23); the tin foil inner filling layer (21) is wrapped around the outside of the conductor (1); the polyester inner filling layer (22) is wrapped around the outside of the tin foil inner filling layer (21); and the insulating protective layer (23) is wrapped around the outside of the polyester inner filling layer (22).

3. A compact multi-core cable that is easy to twist according to claim 1, characterized in that: The filling layer (3) comprises a foam layer (31), an elastic rubber layer (32) and a fiber filling layer (33); the foam layer (31) is arranged on the outside of the insulating protective layer (23); the elastic rubber layer (32) is wrapped on the outside of the foam layer (31); and the fiber filling layer (33) is wrapped on the outside of the elastic rubber layer (32).

4. A compact multi-core cable that is easy to twist according to claim 2, characterized in that: The inner filling layer (21) of the tin foil tape is formed by using metal tin foil as a base material and is closely attached to the inner filling layer (22) of the polyester tape.

5. A compact multi-core cable that is easy to twist according to claim 2, characterized in that: The insulating protective layer (23) is made of polyolefin.

6. A compact multi-core cable that is easy to twist according to claim 3, characterized in that: The foam layer (31) is composed of polyurethane foam and is bonded to the elastic rubber layer (32).

7. A compact multi-core cable that is easy to twist according to claim 3, characterized in that: The fiber filling layer (33) is composed of polyester fibers and is bonded to the elastic rubber layer (32).

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