CN216562532U

CN216562532U - Halogen-free environment-friendly cable with electromagnetic shielding function

Info

Publication number: CN216562532U
Application number: CN202122565180.6U
Authority: CN
Inventors: 刘原; 刘依琳
Original assignee: Zhejiang Xinfangde New Material Co ltd
Current assignee: Zhejiang Xinfangde New Material Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-05-17
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a halogen-free environment-friendly cable with an electromagnetic shielding function, which comprises a cable main body, wherein the cable main body consists of a first filling layer, a second filling layer, a cable, an insulating layer, an inner protection layer, an electromagnetic shielding layer, a fire-resistant layer, an armor layer and an outer protection layer, the cable and the second filling layer which are distributed in an annular array mode relative to the first filling layer are arranged on the outer side of the first filling layer, the cable and the second filling layer are distributed in a staggered mode, the inner protection layer is arranged on the outer sides of the second filling layer and the cable, the electromagnetic shielding layer is arranged on the outer side of the inner protection layer, the fire-resistant layer is arranged on the outer side of the electromagnetic shielding layer, the armor layer is arranged on the outer side of the fire-resistant layer, and the outer protection layer is arranged on the outer side of the armor layer. The electromagnetic pulse generated by current fluctuation can be prevented from influencing the signal transmission of the communication cable, the cable can be protected in multiple ways, and the safety is higher.

Description

Halogen-free environment-friendly cable with electromagnetic shielding function

Technical Field

The utility model relates to the technical field of cables, in particular to a halogen-free environment-friendly cable with an electromagnetic shielding function.

Background

Polyethylene, ethylene-vinyl acetate copolymer, and ethylene-butyl acrylate copolymer are widely used for the preparation of halogen-free flame-retardant cable materials due to their excellent properties. However, most of the polymer bodies have excellent insulating property, and cannot achieve the electromagnetic shielding effect when used alone. The shielded cable has a function of maintaining high-quality transmission performance and avoiding signal distortion and leakage under the condition of strong electromagnetic radiation interference.

In practical application, when the power cable and the communication cable are in the same closed space and the power cable is started and stopped at equipment, electromagnetic pulses can be generated due to the change of current, so that the conditions of distortion and leakage of transmission signals of the communication cable are caused.

Therefore, a halogen-free environment-friendly cable with an electromagnetic shielding function is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a halogen-free environment-friendly cable with an electromagnetic shielding function, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a there is not steamed environmental protection cable with electromagnetic shield function, includes the cable main part, the cable main part comprises first filling layer, second filling layer, cable, insulating layer, interior sheath, electromagnetic shield, flame retardant coating, armor and outer jacket, the outside of first filling layer is provided with cable and the second filling layer that is the annular array and distributes about first filling layer, cable and second filling layer are crisscross distribution, the outside of second filling layer and cable is provided with interior sheath, the outside of interior sheath is provided with the electromagnetic shield, the outside of electromagnetic shield is provided with the flame retardant coating, the outside of flame retardant coating is provided with the armor, the outside of armor is provided with the outer jacket.

Furthermore, the electromagnetic shielding layer is woven by the transverse copper wires and the longitudinal copper wires in a staggered mode to form, the electromagnetic shielding layer formed by weaving the transverse copper wires and the longitudinal copper wires is relatively soft, the bending deformation of the cable main body can be used, the cable main body is not prone to being broken, and the electromagnetic shielding effect can be guaranteed.

Furthermore, the periphery of the cable is provided with an insulating layer, and the insulating layer is of a multilayer structure, so that the mutual insulation between the cables is ensured.

Further, interior sheath structure is hollow structure, reduces the weight of cable main part when protecting the cable, reduces the degree of difficulty of laying of cable main part.

Furthermore, a waterproof layer is arranged between the outer periphery of the armor layer and the inner periphery of the outer protective layer, so that the cable main body has a waterproof effect.

Compared with the prior art, the utility model has the following beneficial effects: the cables can be separated from each other through the arranged first filling layer and the second filling layer, and meanwhile, when the cable main body is extruded, the first filling layer and the second filling layer can be elastically deformed, so that the short circuit of a circuit caused by the fact that the cables are cut and rubbed with each other to break the skin is avoided; by the arranged electromagnetic shielding layer, when the cable main body is used, the electromagnetic pulse generated by the cable main body due to current fluctuation is prevented from influencing the signal transmission of the communication cable; through interior protection, outer jacket and the armor that sets up, can play multiple protection for the cable in the cable main part, the security during use is higher, and under the effect of flame retardant coating, the cable main part is difficult for burning.

Drawings

Fig. 1 is a schematic view of an overall structure of a halogen-free environment-friendly cable with an electromagnetic shielding function according to the present invention.

Fig. 2 is a cross-sectional view of a halogen-free environmental-friendly cable with electromagnetic shielding function according to the present invention.

Fig. 3 is a front view of an electromagnetic shielding layer of a halogen-free environmental protection cable with electromagnetic shielding function according to the present invention.

In the figure: 1. a cable body; 2. a first filling layer; 3. a second filling layer; 4. a cable; 5. an insulating layer; 6. an inner protective layer; 7. an electromagnetic shielding layer; 71. a transverse copper wire; 72. longitudinal copper wires; 8. a refractory layer; 9. an armor layer; 10. an outer jacket.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, a halogen-free environment-friendly cable with an electromagnetic shielding function includes a cable body 1, where the cable body 1 is composed of a first filler layer 2, a second filler layer 3, cables 4, an insulating layer 5, an inner sheath layer 6, an electromagnetic shielding layer 7, a fire-resistant layer 8, an armor layer 9, and an outer sheath layer 10, the cables 4 and the second filler layers 3 distributed in an annular array with respect to the first filler layer 2 are disposed on the outer side of the first filler layer 2, the cables 4 and the second filler layers 3 are distributed in a staggered manner, the inner sheath layer 6 is disposed on the outer sides of the second filler layers 3 and the cables 4, the electromagnetic shielding layer 7 is disposed on the outer side of the inner sheath layer 6, the fire-resistant layer 8 is disposed on the outer side of the electromagnetic shielding layer 7, the armor layer 9 is disposed on the outer side of the fire-resistant layer 8, and the outer sheath layer 10 is disposed on the outer side of the armor layer 9.

The electromagnetic shielding layer 7 is formed by weaving transverse copper wires 71 and longitudinal copper wires 72 in a staggered mode, the electromagnetic shielding layer 7 formed by weaving the transverse copper wires 71 and the longitudinal copper wires 72 is relatively soft, can use bending deformation of the cable main body 1, is not prone to breaking, and can guarantee an electromagnetic shielding effect.

Wherein, the periphery of cable 4 is provided with insulating layer 5, and insulating layer 5 sets up to multilayer structure, guarantees to insulate each other between cable 4.

The inner protection layer 6 is of a hollow structure, so that the weight of the cable body 1 is reduced while the cable 4 is protected, and the laying difficulty of the cable body 1 is reduced.

Wherein, a waterproof layer is arranged between the outer periphery of the armor layer 9 and the inner periphery of the outer protective layer 10, so that the cable body 1 has a waterproof effect.

It should be noted that, when the cable body 1 is extruded, the extrusion force first acts on the outer sheath 10, and then is transmitted to the first filling layer 2 and the second filling layer 3 through the armor layer 9, the fire-resistant layer 8, the electromagnetic shielding layer 7 and the inner sheath 6, the first filling layer 2 and the second filling layer 3 deform to provide a sufficient buffer space for the cable 4, so as to avoid the short circuit of the circuit caused by the broken skin of the cable 4, and when the current fluctuates when the electric equipment is opened and closed, the generated electromagnetic pulse cannot cause interference to the adjacent communication cables under the action of the electromagnetic shielding layer 7 woven by the transverse copper wires 71 and the longitudinal copper wires 72.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A halogen-free environment-friendly cable with an electromagnetic shielding function comprises a cable body (1) and is characterized in that the cable body (1) is composed of a first filling layer (2), a second filling layer (3), a cable (4), an insulating layer (5), an inner protection layer (6), an electromagnetic shielding layer (7), a fire-resistant layer (8), an armor layer (9) and an outer protection layer (10), the cable (4) and the second filling layer (3) which are distributed in an annular array mode relative to the first filling layer (2) are arranged on the outer side of the first filling layer (2), the cable (4) and the second filling layer (3) are distributed in a staggered mode, the inner protection layer (6) is arranged on the outer sides of the second filling layer (3) and the cable (4), the electromagnetic shielding layer (7) is arranged on the outer side of the inner protection layer (6), the fire-resistant layer (8) is arranged on the outer side of the electromagnetic shielding layer (7), the outer side of the fire-resistant layer (8) is provided with an armor layer (9), and the outer side of the armor layer (9) is provided with an outer protective layer (10).

2. The halogen-free environment-friendly cable with electromagnetic shielding function according to claim 1, wherein: the electromagnetic shielding layer (7) is formed by interweaving transverse copper wires (71) and longitudinal copper wires (72).

3. The halogen-free environment-friendly cable with electromagnetic shielding function according to claim 1, wherein: the periphery of the cable (4) is provided with an insulating layer (5).

4. The halogen-free environment-friendly cable with electromagnetic shielding function according to claim 1, wherein: the inner sheath (6) is designed as a hollow structure.

5. The halogen-free environment-friendly cable with electromagnetic shielding function according to claim 1, wherein: a waterproof layer is arranged between the outer periphery of the armor layer (9) and the inner periphery of the outer protective layer (10).