CN212061934U

CN212061934U - Novel cable

Info

Publication number: CN212061934U
Application number: CN202020940446.3U
Authority: CN
Inventors: 何达峰
Original assignee: Hongsheng Wire & Cable Co ltd
Current assignee: Hongsheng Wire & Cable Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-12-01
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a novel cable, including the wire main part has set gradually shielding layer, insulating layer, weaving layer and protective sheath outward, and the thickness ratio of shielding layer, insulating layer and weaving layer is 2:3:1, is provided with the steel wire tensile layer between insulating layer and weaving layer. Through the cooperation of the shielding layer, the insulating layer, the weaving layer and the steel wire tensile layer which are arranged in proportion to the thickness, the toughness of the cable is improved, the insulativity of the main body of the wire is improved, and the condition of electric leakage is reduced.

Description

Novel cable

Technical Field

The utility model relates to a wire and cable technical field refers in particular to a novel cable.

Background

Although the wire and cable industry is a complete industry, the wire and cable industry occupies 1/4 the value of the Chinese electrical industry, the wire and cable has a plurality of product types and a wide application range, relates to the industries of electric power, building, communication, manufacturing and the like, is closely related to each department of national economy, is also called artery and nerve of national economy, is a basic device which is indispensable for transmitting electric energy, transmitting information and manufacturing various motors, instruments and meters and realizing electromagnetic energy conversion, is a necessary basic product in future electrification and information society, the current wire used for household appliances generally only has a conductor and an insulating layer, after the wire is repeatedly used, the insulating layer is easy to harden and separate, so that the conductor loses the protection of the insulating layer, thereby causing unsafe factors such as electric leakage and the like, and the replacement and maintenance of the wire increase corresponding expenses, great inconvenience is caused to life and production, and the tensile strength is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel cable has the advantage that improves cable strength.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a novel cable comprises a conductor main body, wherein a shielding layer, an insulating layer, a braided layer and a protective sleeve are sequentially arranged outside the conductor main body, the thickness ratio of the shielding layer to the insulating layer to the braided layer is 2:3:1, and a steel wire tensile layer is arranged between the insulating layer and the braided layer. Through the cooperation of the shielding layer, the insulating layer, the weaving layer and the steel wire tensile layer which are arranged in proportion to the thickness, the toughness of the cable is improved, the insulativity of the main body of the wire is improved, and the condition of electric leakage is reduced.

Preferably, the protective sleeve is provided as polyvinyl chloride. The protective sleeve made of polyvinyl chloride can improve the flame retardant property of the cable at the same external environment temperature, and meanwhile, the periodic load carrying capacity of the cable main body, the short-time overload carrying capacity of the cable main body and the short-circuit current allowed by the cable main body are increased.

Preferably, the insulating layer is made of synthetic mica tape. The synthetic mica tape has large safety margin and good insulating property at high temperature, so that when the synthetic mica tape layer is wrapped outside the inner core, the synthetic mica tape layer can have good insulating property, and the inner core is further isolated from the ground and other conductive wire cores, so that the stability of electric energy transmission is ensured.

Preferably, the conductor main body comprises a plurality of single wires which are formed by twisting, and a filling layer is arranged among the single wires. The filling layer is set to be polyurethane filling, the filling effect is ideal, and the stress of each group of wire cores in the cable twisting process can be guaranteed to be more uniform.

Preferably, grooves are uniformly formed in the circumferential side wall of the insulating layer, and the steel wire tensile layer is arranged in the grooves. The steel wire tensile layer can be stably and conveniently arranged between the insulating layer and the weaving layer.

To sum up, the utility model discloses following beneficial effect has:

1. through the cooperation of the shielding layer, the insulating layer, the weaving layer and the steel wire tensile layer which are arranged in proportion to the thickness, the toughness of the cable is improved, the insulativity of the main body of the wire is improved, and the condition of electric leakage is reduced.

2. The filling layer is set to be polyurethane filling, the filling effect is ideal, and the stress of each group of wire cores in the cable twisting process can be guaranteed to be more uniform.

3. Set up the steel wire tensile layer in the recess, let the steel wire tensile layer can be installed between insulating layer and weaving layer stably, conveniently.

Drawings

Fig. 1 is a first sectional view of the embodiment.

Fig. 2 is a sectional view of the second embodiment.

In the figure, 1, a lead body; 2. a shielding layer; 3. an insulating layer; 4. weaving layer; 5. a protective sleeve; 6. a steel wire tensile layer; 7. a filling layer; 8. and (4) a groove.

Detailed Description

The invention is further described below in terms of specific examples.

As shown in fig. 1 and 2, the novel cable comprises a conductor main body 1, a shielding layer 2, an insulating layer 3, a braided layer 4 and a protective sleeve 5 are sequentially arranged outside the conductor main body 1, the thickness ratio of the shielding layer 2, the insulating layer 3 and the braided layer 4 is 2:3:1, and a steel wire tensile layer 6 is arranged between the insulating layer 3 and the braided layer. Evenly be provided with recess 8 on the circumference lateral wall of insulating layer 3, steel wire tensile layer 6 sets up in the recess 8. The steel wire tensile layer 6 can be stably and conveniently arranged between the insulating layer 3 and the weaving layer.

Through the cooperation of the shielding layer 2, the insulating layer 3, the weaving layer 4 and the steel wire tensile layer 6 which are arranged in proportion to the thickness, the toughness of the cable is improved, the insulativity of the wire main body 1 is improved, and the electric leakage condition is reduced.

The protective sheath 5 is provided with polyvinyl chloride. The protective sleeve 5 made of polyvinyl chloride can improve the flame retardant property of the cable at the same external environment temperature, and meanwhile, the periodic load carrying capacity of the cable main body 1, the short-time overload carrying capacity of the cable main body 1 and the short-circuit current allowed by the cable main body 1 are increased.

The insulating layer 3 adopts synthetic mica tape, and synthetic mica tape safety margin is big to its insulating properties under high temperature is good, consequently when will synthesize the mica tape layer package outside the inner core, synthetic mica tape layer can play fine insulating nature, and then with the inner core with the ground and between other conductive wire core mutual isolation, guarantee electric energy transmission's stability.

In order to increase the surface area of the conductor without increasing the cross section area of the lead main body 1, the conductor is divided into a plurality of parts, and each part of the conductor is externally provided with an insulating part; and the conductor main body 1 is formed by twisting a plurality of single wires, and an insulating part is arranged on the surface of each single wire. A filling layer 7 is arranged in the gap between the adjacent lead main bodies 1. Between the single wires, a filling layer 7 is provided. The filling layer 7 is set to be polyurethane filling, the filling effect is ideal, and the stress of each group of wire cores in the cable twisting process can be ensured to be more uniform.

The skin effect of the cable is that electric energy is only transmitted on the surface of the lead body 1, and the skin effect can be reduced by increasing the surface area of the lead body 1. Under the condition that the cross section area of the lead body 1 is not increased, in order to increase the surface area of the lead body 1, the lead body 1 is decomposed into a plurality of parts, each part is independent, and the outside of each part of conductor is insulated, so that the surface area of the conductor is actually increased, the skin effect is reduced, and the current-carrying capacity of the cable is improved.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A novel cable comprises a conductor main body (1), and is characterized in that: the cable is characterized in that a shielding layer (2), an insulating layer (3), a braided layer (4) and a protective sleeve (5) are sequentially arranged outside the cable main body (1), the thickness ratio of the shielding layer (2), the insulating layer (3) and the braided layer (4) is 2:3:1, and a steel wire tensile layer (6) is arranged between the insulating layer (3) and the braided layer.

2. The novel cable of claim 1, wherein: the protective sleeve (5) is made of polyvinyl chloride.

3. The novel cable of claim 2, wherein: the insulating layer (3) is made of synthetic mica tape.

4. The novel cable of claim 1, wherein: the conductor main body (1) comprises a plurality of single wires which are formed by twisting, and filling layers (7) are arranged among the single wires.

5. The novel cable of claim 4, wherein: the filling layer (7) is made of polyurethane.

6. The novel cable of claim 1, wherein: the insulation layer is characterized in that grooves (8) are uniformly formed in the circumferential side wall of the insulation layer (3), and the steel wire tensile layer (6) is arranged in each groove (8).