CN111724936A

CN111724936A - Superfine direct-welding polyurethane insulated cable

Info

Publication number: CN111724936A
Application number: CN201910219533.1A
Authority: CN
Inventors: 安阳; 黄卓斌; 邓任作; 赵燕
Original assignee: Guangdong Jiqing Cable Co ltd
Current assignee: Guangdong Jiqing Cable Co ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-09-29

Abstract

The invention discloses an ultra-fine direct-welding polyurethane insulated cable, and belongs to the technical field of cables. The cable comprises a cable body and is characterized in that a nylon wire filling layer is arranged in the middle of the cable body, a first cable core is arranged outside the nylon wire filling layer, an insulating fastening layer is arranged outside the first cable core, a second cable core is arranged outside the insulating fastening layer, and a sheath layer is arranged outside the second cable core; the ultra-thin direct-welding polyurethane insulated cable is thin in insulation, small in outer diameter, light in weight, resistant to scraping and abrasion and high temperature, has a direct-welding function in polyurethane insulation, improves the welding efficiency of a connector or a circuit board, and meets various performance requirements of the ultra-thin cable.

Description

Superfine direct-welding polyurethane insulated cable

Technical Field

The invention relates to an ultra-fine direct-welding polyurethane insulated cable, and belongs to the technical field of cables.

Background

With the rapid development of science and technology, electrical automation is a new subject in the field of electrical information, is closely related to daily life and industrial production of people, has become an important component of high and new technology industries, is widely applied to the fields of industry, agriculture, national defense and the like, and plays a very important role in the whole machine line system as a cable for weak current transmission of an electrical automation machine line, for example, the cable is required to have the functions of thin insulation, small outer diameter, scratch resistance, easy welding, long service life and the like.

Disclosure of Invention

Aiming at the problems, the technical problem to be solved by the invention is to provide an ultra-fine direct-welding polyurethane insulated cable.

The invention relates to an ultrafine straight-welding polyurethane insulated cable, which comprises a cable body, a nylon wire filling layer, a first cable core, an insulating fastening layer, a second cable core and a sheath layer, wherein the nylon wire filling layer is arranged in the middle of the cable body, the first cable core is arranged outside the nylon wire filling layer, the insulating fastening layer is arranged outside the first cable core, the second cable core is arranged outside the insulating fastening layer, and the sheath layer is arranged outside the second cable core;

the first cable core and the second cable core are composed of a plurality of core wires, a bare copper conductor is arranged in the middle of each core wire, a direct-welding polyurethane insulating layer is arranged outside each bare copper conductor, and a lubricating oil layer is arranged outside each direct-welding polyurethane insulating layer.

Preferably, the insulating fastening layer and the sheath layer are both made of TPEE thermoplastic polyester elastomer.

Preferably, the bare copper conductor is a single bare copper wire.

Compared with the prior art, the invention has the beneficial effects that: the ultra-thin direct-welding polyurethane insulated cable is thin in insulation, small in outer diameter, light in weight, resistant to scraping and abrasion and high temperature, has a direct-welding function in polyurethane insulation, improves the welding efficiency of a connector or a circuit board, and meets various performance requirements of the ultra-thin cable.

Drawings

FIG. 1 is a cross-sectional view of the overall construction of the present invention;

FIG. 2 is a cross-sectional view of a core wire construction of the present invention.

Reference numerals: the cable comprises a cable body 1, a nylon wire filling layer 2, a first cable core 3, a core wire 301, a bare copper conductor 302, a direct-welding polyurethane insulating layer 303, a lubricating oil layer 304, an insulating fastening layer 4, a second cable core 5 and a sheath layer 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the following technical solutions are adopted in the present embodiment: it contains cable body 1, nylon yarn filling layer 2, first cable core 3, insulating fastening layer 4, second cable core 5 and restrictive coating 6, 1 middle part of cable body is provided with nylon yarn filling layer 2, and the 2 outsides of nylon yarn filling layer are provided with first cable core 3, 3 outsides of first cable core are provided with insulating fastening layer 4, and the 4 outsides of insulating fastening layer are provided with second cable core 5, the 5 outsides of second cable core are provided with restrictive coating 6, insulating fastening layer 4 and restrictive coating 6 are TPEE thermoplasticity polyester elastomer material.

The first cable core 3 and the second cable core 5 are composed of a plurality of core wires 301, a bare copper conductor 302 is arranged in the middle of each core wire 301, a direct-welding polyurethane insulating layer 303 is arranged outside each bare copper conductor 302, each bare copper conductor 302 is a single bare copper wire, and a lubricating oil layer 304 is arranged outside each direct-welding polyurethane insulating layer 303.

The preparation method of the embodiment comprises the following steps: the bare copper conductor 302 is made of a single bare copper wire, a direct-welding polyurethane insulating layer 303 is coated outside the bare copper conductor 302, a lubricating oil layer 304 is further coated outside the direct-welding polyurethane insulating layer 303 to form a single-core wire 301, the core wire 301 is thin in insulation, small in friction coefficient and resistant to scraping and abrasion, the core wire 301 is easy to weld when used as a circuit board or a connector, then cabling is carried out on the core wire 301 according to the circuit requirement, a nylon wire filling layer 2 is arranged in the middle of a first cable core 3 to improve the tensile strength of the whole cable, a thin-walled insulating fastening layer 4 is extruded on adjacent cabling layers of the first cable core 3 and a second cable core 5, so that the friction between the inner core wire layer and the outer core wire layer is reduced, the cable can also be used as an insulating layer of an AC wire (the inner layer and the outer layer are respectively used as a positive.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A superfine directly-welded polyurethane insulated cable is characterized in that: the cable comprises a cable body (1), a nylon yarn filling layer (2), a first cable core (3), an insulating fastening layer (4), a second cable core (5) and a sheath layer (6), wherein the nylon yarn filling layer (2) is arranged in the middle of the cable body (1), a first cable core (3) is arranged outside the nylon wire filling layer (2), an insulating fastening layer (4) is arranged outside the first cable core (3), a second cable core (5) is arranged outside the insulating fastening layer (4), a sheath layer (6) is arranged outside the second cable core (5), the first cable core (3) and the second cable core (5) are both composed of a plurality of core wires (301), the middle parts of the core wires (301) are provided with bare copper conductors (302), and a direct-welding polyurethane insulating layer (303) is arranged outside the bare copper conductor (302), and a lubricating oil layer (304) is arranged outside the direct welding polyurethane insulating layer (303).

2. The very fine direct welding polyurethane insulated cable according to claim 1, characterized in that: the insulating fastening layer (4) and the sheath layer (6) are both made of TPEE thermoplastic polyester elastomer.

3. The very fine direct welding polyurethane insulated cable according to claim 2, characterized in that: the bare copper conductor (302) is a single bare copper wire.

4. A superfine directly-welded polyurethane insulated cable is characterized in that: the preparation method comprises the following steps: the cable is characterized in that a bare copper conductor (302) is made of a single bare copper wire, a direct-welding polyurethane insulating layer (303) is coated outside the direct-welding polyurethane insulating layer (303), a lubricating oil layer (304) is coated outside the direct-welding polyurethane insulating layer to form a single-core wire (301), the core wire (301) is thin in insulation, small in friction coefficient and resistant to scraping and abrasion, welding is easy when used as a circuit board or a connector, then the core wire (301) is cabled according to circuit requirements, a nylon wire filling layer (2) is arranged in the middle of a first cable core (3), tensile strength of the whole cable is improved, a thin-wall insulating fastening layer (4) is extruded and coated on the adjacent layer of the first cable core (3) and a thin-wall insulating fastening layer (6) is extruded and coated on the adjacent layer of an AC cable core (5) according to an extrusion process after cabling is carried out, and the superfine direct.