CN216749337U - Moisture-proof shielded cable - Google Patents

Abstract

The utility model provides a moisture-proof shielding cable which comprises a cable core, a water-blocking filling layer, a first shielding layer, a second shielding layer and a sheath layer, wherein the cable core is provided with a water-blocking filling layer; the cable core comprises a conductor and an insulating layer; the insulating layer is extruded on the outer side of the conductor; the first shielding layer is arranged on the outer side of the insulating layer, and the water blocking filling layer is arranged in a space between the first shielding layer and the insulating layer; the second shielding layer is extruded on the outer side of the first shielding layer; the sheath layer is extruded on the outer side of the second shielding layer. The moisture-proof shielding cable has good moisture-proof shielding performance, can be effectively applied to a humid severe environment, can reduce the maintenance cost of the cable, and is safer and more reliable to use.

Description

Moisture-proof shielding cable

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to a moisture-proof shielding cable.

Background

The cable has been widely used in industrial production, transportation, construction engineering and facilities, even in high-end fields including space and ocean, and the cable varieties are continuously updated and improved along with the development of social economy, and the production capacity is continuously increased, and the requirements of people are also improved along with the application of the cable in different fields. For example: flame retardant cables, fire resistant cables, low halogen, low smoke cables, halogen free low smoke cables and the like. The moisture-proof requirement for power cables is developed in recent years in rainy regions throughout the year (such as the south of the Yangtze river in China). More and more users are demanding moisture protection from cables. Particularly, the service environment of coastal areas in China is relatively severe, and after the cable is used for a period of time, the cable is easily corroded by moisture and oxidized in advance.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the moisture-proof shielding cable which has good moisture-proof shielding performance, can be effectively applied to a humid severe environment, can reduce the maintenance cost of the cable, and is safer and more reliable to use.

The utility model provides a moisture-proof shielding cable which comprises a cable core, a water-blocking filling layer, a first shielding layer, a second shielding layer and a sheath layer, wherein the cable core is provided with a water-blocking filling layer;

the cable core comprises a conductor and an insulating layer;

the insulating layer is extruded on the outer side of the conductor;

the first shielding layer is arranged on the outer side of the insulating layer, and the water blocking filling layer is arranged in a space between the first shielding layer and the insulating layer;

the second shielding layer is extruded on the outer side of the first shielding layer;

the sheath layer is extruded on the outer side of the second shielding layer.

In the above technical solution, the present invention may be further modified as follows.

The preferable technical scheme is characterized in that: the cable core is a plurality of and be circular arrangement, first shielding layer sets up a plurality of the outside of cable core.

The preferable technical scheme is characterized in that: the waterproof layer is wrapped outside the second shielding layer in an extruded mode, and the sheath layer is arranged outside the waterproof layer.

The preferable technical scheme is characterized in that: and a tearing rope is arranged in the space between the waterproof layer and the sheath layer along the length direction of the cable core.

The preferable technical scheme is characterized in that: the conductor is made of a single copper conductor or stranded by a plurality of copper conductors.

The preferable technical scheme is characterized in that: the insulating layer is made of polyvinyl chloride.

The preferable technical scheme is characterized in that: the water-blocking filling layer is made of water-blocking yarns.

The preferable technical scheme is characterized in that: the waterproof layer is made of waterproof wrapping tapes.

The preferable technical scheme is characterized in that: the first shielding layer is made of an aluminum-plastic composite tape, and the second shielding layer is made of a copper wire braided layer.

The preferable technical scheme is characterized in that: the sheath layer is made of a nitrile-butadiene polyethylene mixture.

According to the utility model, the cable core, the water-blocking filling layer, the first shielding layer, the second shielding layer and the sheath layer are arranged, the insulating layer is used for insulating and protecting the conductor, the water-blocking filling layer plays a role in water blocking and moisture proofing, the first shielding layer and the second shielding layer play a role in double shielding, the anti-electromagnetic interference capability of the cable can be enhanced, and the sheath layer is used for protecting the cable and enhancing the mechanical property of the cable. The utility model has the advantages of moisture-proof shielding performance, longer service life and safer power supply, and can adapt to a moist power supply environment.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a moisture-proof shielded cable according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a moisture-proof shielded cable according to embodiment 2 of the present invention.

In the figure, the meaning of each symbol is as follows:

1. a cable core; 11. a conductor; 12. an insulating layer; 2. a water-blocking filling layer; 3. a first shielding layer; 4. a second shielding layer; 5. a sheath layer; 6. a waterproof layer; 7. and (6) tearing the rope.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following examples are illustrated and described in detail as follows:

example 1

Referring to fig. 1, the present embodiment provides a moisture-proof shielded cable, which includes a cable core 1, a water-blocking filling layer 2, a first shielding layer 3, a second shielding layer 4, and a sheath layer 5;

the cable core 1 comprises a conductor 11 and an insulating layer 12;

the insulating layer 12 is extruded on the outer side of the conductor 11;

the first shielding layer 3 is arranged on the outer side of the insulating layer 12, and the water-blocking filling layer 2 is arranged in a space between the first shielding layer 3 and the insulating layer 12;

the second shielding layer 4 is extruded on the outer side of the first shielding layer 3;

the sheath layer 5 is extruded on the outer side of the second shielding layer 4.

This embodiment is through setting up cable core 1, filling layer 2, first shielding layer 3, second shielding layer 4 and restrictive coating 5 that blocks water, and copper conductor can be chooseed for use to conductor 11 in the cable core 1, and insulating layer 12 is used for crowded package in the outside of conductor 11, carries out insulation protection to conductor 11. The water-blocking filling layer 2 is arranged to be filled in a space between the first shielding layer 3 and the insulating layer 12, so that the cable core 1 is stably installed in the space, and meanwhile, the cable has water-blocking performance. The first shielding layer 3 and the second shielding layer 4 play a role of double shielding, and the anti-electromagnetic interference capability of the cable can be enhanced. The sheath layer 5 is used for enhancing the mechanical property of the cable and protecting the internal structure of the cable.

Referring to fig. 1, the cable cores 1 are five and are arranged in a circular shape, and the first shielding layers 3 are disposed outside the five cable cores 1.

Five cable cores 1 that set up are used for improving the electric quantity transmission ability of cable.

Referring to fig. 1, the conductor 11 is made of a single copper conductor or is stranded by a plurality of copper conductors.

In this embodiment, the conductor 11 may be made of copper or aluminum alloy.

Referring to fig. 1, the insulating layer 12 is made of pvc.

The insulating layer 12 made of polyvinyl chloride has good flexibility and crack resistance, can protect the conductor 11, and has good insulativity to prevent electric leakage of the cable.

Referring to fig. 1, the water-blocking filling layer 2 is made of water-blocking yarn.

The arranged water-blocking yarn has excellent water-blocking expansion effect, and the water-blocking yarn contains water-blocking powder which rapidly expands when meeting water, so that water is blocked and enters the cable core 1.

Referring to fig. 1, the first shielding layer 3 is made of an aluminum-plastic composite tape, and the second shielding layer 4 is made of a copper wire braided layer.

The aluminum-plastic composite belt and the copper wire braided layer have good electromagnetic shielding performance, have waterproof and moistureproof performance simultaneously, can enhance the anti-electromagnetic interference capability of the cable, and simultaneously enable the cable to have waterproof and moistureproof performance.

Referring to fig. 1, the sheath layer 5 is made of butyronitrile polyethylene.

The butyronitrile polyethylene has good oil-proof and corrosion-proof performance, and can protect the internal structure of the cable.

Example 2

The present embodiment is different from embodiment 1 in that: referring to fig. 2, the cable further includes a waterproof layer 6, the waterproof layer 6 is extruded on the outer side of the second shielding layer 4, and the sheath layer 5 is disposed on the outer side of the waterproof layer 6.

The waterproof layer 6 is used for playing a waterproof role and enhancing the waterproofness of the cable.

Referring to fig. 2, a tearing rope 7 is disposed in a space between the waterproof layer 6 and the sheath layer 5 along a length direction of the cable core 1.

The tearing rope 7 is used for enhancing the tensile drag resistance of the cable and can absorb heat emitted by the cable core 1 in the using process.

Referring to fig. 2, the waterproof layer 6 is made of waterproof tape.

The waterproof wrapping tape has good waterproof performance, and the waterproof performance of the cable can be further enhanced.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (9)

1. A moisture-resistant shielded cable characterized by: the cable comprises a cable core, a water-blocking filling layer, a first shielding layer, a second shielding layer and a sheath layer;

the cable core comprises a conductor and an insulating layer;

the insulating layer is extruded on the outer side of the conductor;

the first shielding layer is arranged on the outer side of the insulating layer, and the water blocking filling layer is arranged in a space between the first shielding layer and the insulating layer;

the second shielding layer is extruded on the outer side of the first shielding layer;

the sheath layer is extruded on the outer side of the second shielding layer.

2. A moisture-resistant shielded electrical cable as claimed in claim 1, wherein: the cable core is a plurality of and be circular arrangement, first shielding layer sets up a plurality of the outside of cable core.

3. A moisture-resistant shielded electrical cable according to claim 1, wherein: the waterproof layer is wrapped outside the second shielding layer in an extruded mode, and the sheath layer is arranged outside the waterproof layer.

4. A moisture-resistant shielded electrical cable according to claim 3, wherein: and a tearing rope is arranged in the space between the waterproof layer and the sheath layer along the length direction of the cable core.

5. A moisture-resistant shielded electrical cable as claimed in claim 1, wherein: the conductor is made of a single copper conductor or stranded by a plurality of copper conductors.

6. A moisture-resistant shielded electrical cable according to claim 1, wherein: the insulating layer is made of polyvinyl chloride.

7. A moisture-resistant shielded electrical cable according to claim 1, wherein: the water-blocking filling layer is made of water-blocking yarns.

8. The moisture-resistant shielded electrical cable of claim 4, wherein: the waterproof layer is made of waterproof wrapping tapes.

9. A moisture-resistant shielded electrical cable as claimed in claim 1, wherein: the first shielding layer is made of an aluminum-plastic composite tape, and the second shielding layer is made of a copper wire braided layer.

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