CN219997889U - Shielded sheath cable - Google Patents

Abstract

The utility model relates to the technical field of cables, and discloses a shielding type sheath cable, which comprises a cable core, an outer sheath and a shielding mechanism, wherein: the shielding mechanism comprises a first shielding layer and a second shielding layer, wherein the second shielding layer, the first shielding layer and an outer sheath are sequentially coated outside the cable core from inside to outside. According to the shielding type sheath cable, the first shielding layer and the second shielding layer are arranged, through the combined design of the double shielding structure, not only can a single cable core be shielded, but also the whole cable core can be shielded, so that the shielding effect on a current magnetic field is improved, the adverse effect on peripheral electrical elements is reduced, and the shielding type sheath cable has a wide market prospect.

Description

Shielded sheath cable

Technical Field

The utility model relates to the technical field of cables, in particular to a shielding sheath cable.

Background

A jacketed cable refers to a single or multi-core wire with a jacket layer. Is mainly applied to connecting wires of electric appliances and meters and transmission lines of automatic control systems under certain alternating current rated voltage, the waterproof wear-resistant rubber has excellent performances of oil resistance, water resistance, wear resistance, acid and alkali resistance, various corrosive gases, aging resistance, incombustibility and the like, and is suitable for industries of metallurgy, electric power, petrochemical industry and the like.

Along with the continuous acceleration of modern construction, new application scenes and special requirements put forward higher requirements on the performance of the sheath cable, and the traditional sheath cable adopts a single shielding structure, so that the shielding effect on a current magnetic field is not ideal enough, and adverse effects on peripheral electrical elements can be possibly caused to a certain extent.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model provides a shielding type sheath cable.

The utility model provides a shielded sheath cable, which comprises a cable core, an outer sheath and a shielding mechanism, wherein:

the shielding mechanism comprises a first shielding layer and a second shielding layer, wherein the second shielding layer, the first shielding layer and an outer sheath are sequentially coated outside the cable core from inside to outside.

As a further optimized scheme of the utility model, the cable cores are distributed in the outer sheath uniformly, the outer parts of the cable cores are wound through the first wrapping belt to form a cylinder, and the first shielding layer is wrapped outside the first wrapping belt.

As a further optimized scheme of the utility model, gaps exist between the first wrapping belt and the plurality of cable cores, and a flame-retardant filling layer is arranged in the gaps.

As a further optimized scheme of the utility model, the outer wall of the cable core is coated with the insulating layer, the second shielding layer is coated outside the insulating layer, the second wrapping belt is wound on the outer wall of the second shielding layer, and the second wrapping belts of the outer walls of the adjacent cable cores are mutually clung.

As a further optimized scheme of the utility model, the first shielding layer and the second shielding layer are braid shielding layers.

As a further optimized scheme of the utility model, the braid shielding layer is a copper wire braid or a tinned copper wire braid.

According to the shielding type sheath cable, the first shielding layer and the second shielding layer are arranged, through the combined design of the double shielding structure, not only can a single cable core be shielded, but also the whole cable core can be shielded, so that the shielding effect on a current magnetic field is improved, the adverse effect on peripheral electrical elements is reduced, and the shielding type sheath cable has a wide market prospect.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

fig. 2 is a schematic view of the external structure of the cable core in fig. 1 according to the present utility model.

Description of the drawings: 1. a cable core; 2. an outer sheath; 3. a first shielding layer; 4. a second shielding layer; 5. a first strap; 6. reinforcing ribs; 7. a flame retardant filler layer; 8. an insulating layer; 9. a second strap; 10. and a third strap.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1, a shielded cable with sheath includes a cable core 1, an outer sheath 2 and a shielding mechanism, wherein the outer sheath 2 is a low smoke halogen-free flame retardant polyolefin sheath, and the cable comprises: the shielding mechanism comprises a first shielding layer 3 and a second shielding layer 4, wherein the second shielding layer 4, the first shielding layer 3 and the outer sheath 2 are sequentially coated outside the cable core 1 from inside to outside.

In the embodiment, the number of the cable cores 1 is a plurality of and the cable cores 1 are uniformly distributed in the inner cavity of the outer sheath 2, the outer parts of the plurality of cable cores 1 are wound by the first wrapping tape 5 to form a cylinder, and the first shielding layer 3 is wrapped outside the first wrapping tape 5;

specifically, referring to fig. 1, the number of the cable cores 1 is four, and the four cable cores 1 are symmetrically distributed in a ring shape, and the first wrapping tape 5 is wound on the outer walls of the four cable cores 1 so as to wind the four cable cores 1 into a cylinder shape, thereby preventing the cable cores from loosening;

furthermore, the first wrapping belt 5 is aluminum foil Mylar, so that shielding interference can be carried out on a current magnetic field, and the shielding effect is improved;

in the embodiment, gaps exist between the first wrapping tape 5 and the plurality of cable cores 1, and a flame-retardant filling layer 7 is arranged in the gaps;

specifically, the flame-retardant filling layer 7 is cotton thread or hemp rope doped with basalt fiber wires, so that not only can the bending performance and tensile strength of the cable be improved, but also the flexibility of the cable can be improved, and the actual use is convenient;

in this embodiment, referring to fig. 2, an insulating layer 8 is wrapped on the outer wall of the cable core 1, a second shielding layer 4 is wrapped outside the insulating layer 8, a second wrapping belt 9 is wrapped on the outer wall of the second shielding layer 4, and the second wrapping belts 9 adjacent to the outer wall of the cable core 1 are mutually clung; each cable core 1 can be independently insulated and shielded, so that the shielding effect on a current magnetic field is improved;

specifically, the second wrapping band 9 is aluminum foil Mylar, so that shielding interference can be carried out on a current magnetic field, and the shielding effect is improved;

further, referring to fig. 1, a reinforcing rib 6 is further disposed in the gap between the first wrapping band 5 and the four cable cores 1, the reinforcing rib 6 is disposed between two adjacent cable cores, and the outer wall of the reinforcing rib 6 is respectively clung to the outer wall of the adjacent cable core and the inner wall of the first wrapping band 5, so that the strength of the cable can be improved;

in this embodiment, the first shielding layer 3 and the second shielding layer 4 are braid shielding layers, and are copper wire braid strips or tinned copper wire braid strips, and the longitudinal tension resistance is high, so that the cable is soft, the cable core is wrapped and coated by the braid strips, a plurality of cable cores are tightly combined, the loose prevention effect is achieved, and the shielding effect of a current magnetic field can be improved.

According to the shielding type sheath cable, the first shielding layer 3 and the second shielding layer 4 are arranged, and through the combined design of the double shielding structures, not only can a single cable core be shielded, but also the whole cable core can be shielded, so that the shielding effect on a current magnetic field is improved, adverse effects on peripheral electrical components are reduced, and the shielding type sheath cable has a wide market prospect.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (4)

1. The utility model provides a shielding sheath cable which characterized in that includes cable core (1), oversheath (2) and shielding mechanism, wherein:

the shielding mechanism comprises a first shielding layer (3) and a second shielding layer (4), wherein the second shielding layer (4), the first shielding layer (3) and the outer sheath (2) are sequentially coated outside the cable core (1) from inside to outside;

the number of the cable cores (1) is multiple and the cable cores are uniformly distributed in the outer sheath (2), the outer parts of the cable cores (1) are wound through the first wrapping belt (5) to form a cylinder, and the first shielding layer (3) is wrapped outside the first wrapping belt (5);

the outer wall cladding of cable core (1) has insulating layer (8), and second shielding layer (4) cladding is in the outside of insulating layer (8), and the outer wall winding of second shielding layer (4) has second cladding area (9), and second cladding area (9) of adjacent cable core (1) outer wall hugs closely each other.

2. A shielded jacketed cable according to claim 1, characterized in that a gap is present between the first tape (5) and the plurality of cable cores (1), and a flame retardant filling layer (7) is arranged in the gap.

3. A shielded jacketed cable according to claim 1, characterized in that the first shielding layer (3) and the second shielding layer (4) are both braid shielding layers.

4. A shielded jacketed cable according to claim 3, wherein the braid shielding layer is a copper wire braid or a tin-plated copper wire braid.