CN218996404U

CN218996404U - Halogen-free flame-retardant motor lead wire

Info

Publication number: CN218996404U
Application number: CN202223098997.8U
Authority: CN
Inventors: 王志隆; 郑茂青
Original assignee: Jiaxing New Cable Co ltd
Current assignee: Jiaxing New Cable Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-09
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a halogen-free flame-retardant motor lead wire, which comprises a halogen-free flame-retardant polyolefin inner sheath, wherein an insulating structure is fixedly arranged in the halogen-free flame-retardant polyolefin inner sheath, a halogen-free flame-retardant polyolefin outer sheath is fixedly arranged on the outer edge surface of the halogen-free flame-retardant polyolefin inner sheath, a plurality of expansion grooves for reducing breakage are formed in an annular array on the outer edge surface of the halogen-free flame-retardant polyolefin outer sheath, a plurality of copper core wires for carrying out current transmission are arranged in the insulating structure in an annular array, an alloy rope is arranged in the middle of the insulating structure, a glass fiber filling layer for extruding a plurality of copper core wires and the alloy rope is filled in the insulating structure, and the insulating structure comprises a woven shielding layer. The halogen-free flame-retardant motor lead wire is provided with a supporting structure, so that the occurrence of fracture or forcing of the surface of the lead wire can be avoided, the tightness of the wire is ensured, the subsequent use is convenient, and the subsequent trouble is avoided.

Description

Halogen-free flame-retardant motor lead wire

Technical Field

The utility model belongs to the technical field of lead wires, and particularly relates to a halogen-free flame-retardant motor lead wire.

Background

The motor lead is a lead connected with an external power supply when the motor rotates, and is mainly formed by combining a conductor, an insulating layer and a protective layer.

However, since the existing motor lead wire is limited in structure and material properties, the protective layer is easily broken or damaged under traction and stretching conditions, so that the tightness of the wire is damaged, the subsequent use is affected, and unnecessary troubles are caused.

Disclosure of Invention

The utility model aims to provide a halogen-free flame-retardant motor lead wire, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a halogen-free flame-retardant motor lead wire comprises a halogen-free flame-retardant polyolefin inner sheath;

an insulation structure is fixedly arranged in the halogen-free flame-retardant polyolefin inner layer sheath, a halogen-free flame-retardant polyolefin outer layer sheath is fixedly arranged on the outer edge surface of the halogen-free flame-retardant polyolefin inner layer sheath, and a plurality of expansion grooves for reducing breakage are formed in an annular array on the outer edge surface of the halogen-free flame-retardant polyolefin outer layer sheath;

the insulation structure is internally provided with a plurality of copper core wires for carrying out current transmission in an annular array, the insulation structure is internally provided with an alloy rope in the middle, and the insulation structure is internally filled with a glass fiber filling layer for extruding a plurality of copper core wires and the alloy rope.

Further, the insulation structure comprises a braided shielding layer which is fixedly arranged in the halogen-free flame retardant polyolefin inner sheath.

Further, the insulating layer is fixedly arranged in the braided shielding layer, and a plurality of supporting ropes for improving bending resistance are arranged in the annular array in the insulating layer.

Compared with the prior art, the utility model has the following beneficial effects:

thanks to the arrangement of the halogen-free flame-retardant polyolefin inner sheath and the halogen-free flame-retardant polyolefin outer sheath, the insulation structure and the copper core wires are protected by the halogen-free flame-retardant polyolefin inner sheath and the halogen-free flame-retardant polyolefin outer sheath, so that supporting force is provided for the halogen-free flame-retardant polyolefin inner sheath when the halogen-free flame-retardant polyolefin outer sheath is matched with an alloy rope to be pulled and stretched, the situation that the surface of the halogen-free flame-retardant polyolefin inner sheath is broken or forced is avoided, the tightness of the wire is ensured, the subsequent use is convenient, and the subsequent trouble is avoided;

owing to the arrangement of the glass fiber filling layers and the supporting ropes in the insulating layers, the bending resistance of the wire is improved through the supporting ropes, and the bending amplitude is limited by the glass fiber filling layers, so that the copper core wires are protected, the situation that the copper core wires are damaged due to bending is avoided, the service life of the wire is further prolonged, and the practicability is higher.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

fig. 3 is an enlarged schematic view of the structure a of fig. 1 according to the present utility model.

In the figure: 1. a halogen-free flame retardant polyolefin inner sheath; 2. a halogen-free flame retardant polyolefin outer sheath; 201. a telescopic slot; 3. a glass fiber filling layer; 4. a copper core wire; 5. an alloy rope; 6. braiding a shielding layer; 7. an insulating layer; 8. and (5) supporting the rope.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1, fig. 2 and fig. 3, a lead wire of a halogen-free flame retardant motor comprises a halogen-free flame retardant polyolefin inner layer sheath 1, an insulation structure is fixedly arranged in the halogen-free flame retardant polyolefin inner layer sheath 1, a halogen-free flame retardant polyolefin outer layer sheath 2 is fixedly arranged on the outer edge surface of the halogen-free flame retardant polyolefin inner layer sheath 1, a plurality of telescopic grooves 201 for reducing breakage are formed in an annular array on the outer edge surface of the halogen-free flame retardant polyolefin outer layer sheath 2, a plurality of copper core wires 4 for carrying out current transmission are arranged in the insulation structure in an annular array, an alloy rope 5 is arranged in the insulation structure in the middle, a plurality of glass fiber filling layers 3 for extruding the copper core wires 4 and the alloy rope 5 are filled in the insulation structure, and the insulation structure and the plurality of copper core wires 4 are protected through the halogen-free flame retardant polyolefin inner layer sheath 1 and the halogen-free flame retardant polyolefin outer layer sheath 2, so that the halogen-free flame retardant polyolefin inner layer sheath 1 is provided with supporting force through the halogen-free flame retardant polyolefin outer layer sheath 2 in cooperation with the alloy rope 5 when being pulled and stretched, the situation that the surface of the halogen-free flame retardant polyolefin inner layer sheath 1 is broken or forced is avoided, the trouble is avoided, and the subsequent use is convenient.

As shown in fig. 1 and 3, the insulation structure comprises a braided shielding layer 6, the braided shielding layer 6 is fixedly installed in a halogen-free flame retardant polyolefin inner layer sheath 1, an insulation layer 7 is fixedly arranged in the braided shielding layer 6, a plurality of supporting ropes 8 used for improving bending resistance are arranged in the insulation layer 7 in an annular array, bending resistance of the wire is improved through the supporting ropes 8, and bending amplitude is limited by matching with the glass fiber filling layers 3, so that the copper core wires 4 are protected, damage to the copper core wires 4 caused by bending is avoided, service life of the wire is further prolonged, and the practicability is high.

Working principle: this no steamed fire-retardant motor lead wire, during the use, through the many copper core wires 4 that do not have steamed fire-retardant polyolefin inlayer sheath 1 and no steamed fire-retardant polyolefin outer sheath 2 to setting up in the insulation system protect, when this lead wire receives to pull, provide holding power for no steamed fire-retardant polyolefin inlayer sheath 1 when pulling tensile through the no steamed fire-retardant polyolefin outer sheath 2 cooperation alloy rope 5 that sets up a plurality of expansion grooves 201, thereby avoid its surface to appear breaking or forcing the condition emergence, ensure the leakproofness of this wire rod, and improve the bending resistance performance of this wire rod through a plurality of supporting ropes 8, and limit the range of buckling to the range of a plurality of glass fiber filling layers 3, thereby protect many copper core wires 4, avoid leading to the impaired condition emergence of copper core wire 4 because of buckling, further improved the life of this wire rod, the practicality is stronger.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The halogen-free flame-retardant motor lead wire comprises a halogen-free flame-retardant polyolefin inner sheath (1);

the method is characterized in that: an insulating structure is fixedly arranged in the halogen-free flame-retardant polyolefin inner layer sheath (1), a halogen-free flame-retardant polyolefin outer layer sheath (2) is fixedly arranged on the outer edge surface of the halogen-free flame-retardant polyolefin inner layer sheath (1), and a plurality of expansion grooves (201) for reducing breakage are formed in an annular array on the outer edge surface of the halogen-free flame-retardant polyolefin outer layer sheath (2);

the novel copper wire structure is characterized in that a plurality of copper core wires (4) for carrying out current transmission are arranged in an annular array in the insulation structure, an alloy rope (5) is arranged in the middle in the insulation structure, and glass fiber filling layers (3) for extruding the copper core wires (4) and the alloy rope (5) are filled in the insulation structure.

2. The halogen-free flame retardant motor lead wire according to claim 1, wherein: the insulation structure comprises a braided shielding layer (6), and the braided shielding layer (6) is fixedly arranged in the halogen-free flame-retardant polyolefin inner sheath (1).

3. The halogen-free flame retardant motor lead wire according to claim 2, wherein: the inner part of the braided shielding layer (6) is fixedly provided with an insulating layer (7), and a plurality of supporting ropes (8) for improving bending resistance are arranged in the insulating layer (7) in an annular array.