CN212851073U

CN212851073U - Heating wire

Info

Publication number: CN212851073U
Application number: CN202021749547.9U
Authority: CN
Inventors: 吴原兵; 郭志诚
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd; Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd; Shenzhen Woer Special Cable Co Ltd
Current assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd; Shenzhen Woer Special Cable Co Ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-03-30
Anticipated expiration: 2030-08-20

Abstract

The utility model relates to a heat-generating body technical field, in particular to line generates heat. Comprises a linear conductor and an insulating layer for coating the conductor; the conductor comprises high-strength fiber wires and a plurality of metal wires; and the metal wires are spirally wound around the periphery of the high-strength fiber wires side by side. The winding pitch D of wire with the external diameter B's of conductor ratio is 0.85 ~ 1.2, through four wire of spiral winding side by side in the periphery at high strength fiber, thereby it is bigger to realize conductor resistance and compare traditional conductor, promotes the resistance value of conductor unit length, realizes promoting power by a wide margin on the wire rod of looks degree length, and uses high strength fiber as the center, makes the wire possess the characteristic of high strength, prevents that subsequent wire from taking place the broken string inadequately because of wire intensity at the riveting in-process. The problem of current generate heat wire's heating power low, easy broken string is solved.

Description

Heating wire

Technical Field

The utility model relates to a heat-generating body technical field, in particular to line generates heat.

Background

The heating cable is a cable structure, and the structure is that a heating wire is arranged outside the cable, electric power is used as energy, resistance wires of the heating wire are used for conducting power-on heating, and the heating or heat preservation effect is achieved.

The conventional heating wire is generally composed of stranded resistance wires or resistance wires wound by monofilaments and has good flexibility, but the heating wire composed of the monofilament resistance wires has the defects of low heating power, insufficient strength and easy wire breakage problem caused by insufficient strength during riveting.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a heating wire, which solves the problems of low heating power and easy wire breakage of the existing heating wire by adopting the technical scheme provided by the utility model.

In order to solve the above technical problem, the present invention provides a heating wire, comprising a conductor and an insulating layer (30) covering the conductor; the conductor comprises a high-strength fiber wire (10) and a plurality of metal wires (20); and the metal wires (20) are spirally wound on the periphery of the high-strength fiber wire (10) side by side.

Preferably, the ratio of the winding pitch D of the metal wire (20) to the outer diameter B of the conductor is 0.85-1.2.

Preferably, the ratio of the wire diameter A to the thread pitch D of the metal wire (20) is 0.15-0.25.

Preferably, the outer diameter B of the conductor is 0.7-1 mm.

Preferably, the high-strength fiber yarn (10) is a bulletproof yarn, and the specification of the bulletproof yarn is 1580D.

Preferably, the metal wire (20) is made of a nickel material.

Preferably, the insulating layer (30) is fluoroplastic or polyester rubber.

From the above, use the utility model provides a can obtain following beneficial effect: through using high strength fiber silk as the center, at a plurality of root metal silks of high strength fiber silk periphery spiral winding, generate heat through the metal silk circular telegram and realize the effect that the heater wire generates heat, the metal silk is equipped with four and spiral winding in high strength fiber silk's periphery side by side to it is bigger to realize conductor resistance to compare traditional conductor, promotes the resistance value of conductor unit length, realizes promoting power on the wire rod of looks degree length by a wide margin. The ratio of the winding pitch D of the metal wire to the outer diameter B of the conductor is 0.85-1.2, the pitch can be adjusted according to different resistance requirements to change the heating power of the conductor, the high-strength fiber wire is used as a center, the wire has the characteristic of high strength, and the wire breakage of subsequent wires due to insufficient strength of the wire in the riveting process is prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.

Fig. 1 is a schematic structural view of a heating wire according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to solve the above technical problems, the present embodiment provides a heating wire, as shown in fig. 1, including a linear conductor and an insulating layer 30 covering the conductor, wherein the conductor includes a high-strength fiber 10 and a plurality of metal wires 20, the metal wires 20 are spirally wound around the periphery of the high-strength fiber 10, the heating wire generates heat by energizing the metal wires 20, and the insulating layer 30 is made of fluoroplastic or polyester rubber, wherein the fluoroplastic is preferably FEP, and the FEP is a fluorinated ethylene propylene copolymer, has high temperature resistance, protects the conductor, is not melted by high temperature, and has good heat conductivity.

In order to improve the heating power of the heating conductor, four metal wires 20 are arranged, and the four metal wires 20 are spirally wound on the periphery of the high-strength fiber 10 side by side, so that the conductor resistance is larger than that of the traditional conductor, the resistance value of the conductor in unit length is improved, and the power is greatly improved on the wire with the same phase length. Under the same wire diameter, in order to optimize the ratio of the thread pitch D and the thread diameter A of the metal wire 20 to the outer diameter B of the conductor, the ratio of the winding thread pitch D of the metal wire 20 to the outer diameter B of the conductor is 0.85-1.2, and the ratio of the thread diameter A of the metal wire 20 to the thread pitch D is 0.15-0.25.

In order to achieve the advantage of small outer diameter and high heat generation power after being formed into a wire rod, the outer diameter B of the conductor provided in the present embodiment is 0.7mm, and the conductor of this specification will be described below as an example.

Specifically, the diameter of wire A of wire 20 is 0.15mm, and the winding pitch D of wire 20 is 0.8mm, and in practical application, can adjust the pitch according to the resistance requirement of difference, through adjusting the pitch of wire 20 spiral winding on high strength fiber 10, can realize changing the heating power of conductor, reach the effect of generating heat of different degrees. The wire 20 is made of a nickel material, preferably nickel copper or nickel-chromium alloy.

The conventional heating wire is generally composed of stranded resistance wires or resistance wires wound by monofilaments, has good flexibility, but has insufficient strength, and the wire is easy to break due to insufficient strength during riveting. Therefore, the metal wires 20 are spirally wound on the periphery of the high-strength fiber wire 10 side by side, the high-strength fiber wire 10 is a 1580D bulletproof wire, four metal wires 20 are spirally wound on the periphery of the high-strength fiber wire 10 by taking the high-strength fiber wire 10 as a center, so that the conductor has high strength, meanwhile, the high-strength fiber wire 10 is a 1580D bulletproof wire, the high-strength fiber wire has the characteristic of high strength, and the subsequent wire is prevented from being broken due to insufficient strength in the riveting process. Further, the heat generating conductor formed by spirally winding the four metal wires 20 around the high-strength fiber 10.

To sum up, the utility model discloses the scheme is through using high strength fiber silk as the center, at a plurality of root metal silks of high strength fiber silk periphery spiral winding, generates heat through the wire circular telegram and realizes the effect that the heater wire generates heat, through four root metal silks of spiral winding side by side in the periphery at high strength fiber silk to it is bigger to realize conductor resistance and compare traditional conductor, promotes the resistance value of conductor unit length, realizes promoting substantially power on the wire rod of looks degree length. The winding pitch D of wire is 0.8mm, can adjust the pitch according to the resistance requirement of difference and realize changing the heating power of conductor to high strength fiber silk is central, makes the wire possess the characteristic of high strength, prevents that subsequent wire rod from taking place the broken string because of wire intensity is not enough in the riveting process.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. A heating wire, characterized in that: comprises a linear conductor and an insulating layer (30) covering the conductor; the conductor comprises a high-strength fiber wire (10) and a plurality of metal wires (20); and the metal wires (20) are spirally wound on the periphery of the high-strength fiber wire (10) side by side.

2. The heat generation line according to claim 1, characterized in that: the ratio of the winding pitch D of the metal wire (20) to the outer diameter B of the conductor is 0.85-1.2.

3. The heat generation line according to claim 2, characterized in that: the ratio of the wire diameter A of the metal wire (20) to the thread pitch D is 0.15-0.25.

4. The heat generation line according to claim 3, characterized in that: the outer diameter B of the conductor is 0.7-1 mm.

5. The heat generation line according to claim 1, characterized in that: the high-strength fiber yarn (10) is a bulletproof yarn, and the specification of the high-strength fiber yarn is 1580D.

6. The heat generation line according to claim 3, characterized in that: the metal wire (20) is made of a nickel material.

7. The heat generation line according to claim 1, characterized in that: the insulating layer (30) is fluoroplastic or polyester rubber.