CN210956273U - A multi-strand spiral signal line - Google Patents

Abstract

The utility model discloses a stranded spiral signal line relates to signal line technical field, the utility model discloses a cellosilk and conductor, the conductor includes eight at least wires, the wire is parallel to each other and is the heliciform and twine in the surface of cellosilk, every the surface coating of wire has the polyurethane resin layer, the utility model provides a less, the effectual technical problem of insulation between the wire of conductor impedance.

Description

A multi-strand spiral signal line

technical field

The utility model relates to the technical field of signal lines, in particular to a multi-strand spiral signal line.

Background technique

Signal lines are commonly used for the lead-out lines of various speakers and voice coils. Traditional signal lines are generally made of two to three wires in parallel and wound around a bundle of central wires. When the required signal wire is long, two to three wires are required. The length of the winding will be longer, and the number of wires will be small, the resulting impedance will be large; in addition, the surface of the traditional wire is easily oxidized and blackened, resulting in poor insulation between the wire and the wire, affecting the use effect.

Utility model content

The purpose of the present invention is to provide a multi-strand helical signal line with low impedance and good insulation effect between wires, so as to solve the problems raised in the background art.

In order to achieve the above object, the technical scheme adopted by the present utility model is as follows:

A multi-strand helical signal line, comprising filaments and conductors, the conductors include at least eight wires, the wires are parallel to each other and are wound on the surface of the filaments in a spiral shape, and the surface of each wire is coated with polyurethane resin layer.

Further, the wire is made of alloy material.

Further, a nylon resin layer is also included, and the nylon resin layer is coated on the surface of the polyurethane resin layer.

Further, the diameter of each wire is in the range of 0.02-0.15 mm.

Further, the adjacent conductors of each circle are closely arranged.

Further, the adjacent conductors of each circle are arranged at equal distances.

The beneficial effects of the present invention are as follows: the number of conductors of the present invention is at least eight, and all the wires are parallel to each other and spirally wound on the surface of the filament. When the distance between the wires is the same, the pitch of the winding of a single wire of the present invention becomes larger, and the number of winding turns becomes less, so that the required length of each wire is shortened, and the number of wires is increased. Therefore, the present utility model reduces the impedance to a certain extent; on the other hand, the surface of each wire of the present utility model is coated with a polyurethane resin layer, making full use of the high strength, tear resistance, wear resistance and resistance of the polyurethane resin. The characteristics of oxidation make the surface of the wire not easy to be oxidized, so that the insulation effect between the wire and the wire of the utility model is better and more stable.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model in the first embodiment;

Fig. 2 is the enlarged view of A place in Fig. 1;

Fig. 3 is the overall structure schematic diagram of the present utility model in the second embodiment;

FIG. 4 is an enlarged view of B in FIG. 3 .

The reference numbers are:

filament 1,

Lead wire 21 , urethane resin layer 22 , nylon resin layer 23 .

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings.

Example 1

A multi-strand helical signal line as shown in FIG. 1 and FIG. 2 includes fiber filaments 1 and conductors, the conductors include 8 wires 21, the signal wires are of the same length and the distance between the wires 21 and the wires 21 is the same Under the circumstance of the present invention, the winding pitch of the single wire 21 of the present invention becomes larger, and the number of winding turns is reduced, so that the required length of each wire 21 is shortened, and the number of wires 21 is increased, so that the utility model can Compared with the traditional technology, the new type reduces the impedance to a certain extent.

The diameter of each wire 21 is in the range of 0.02-0.15 mm, and the smaller diameter makes the overall diameter of the utility model smaller. Compared with the existing braided wire, the utility model has better plasticity.

The wires 21 are parallel to each other and spirally wound on the surface of the fiber filament 1, and adjacent conductors of each circle are closely arranged, that is, as shown in FIG. The utility model has better conductivity.

The wire 21 is made of alloy material, and the surface of each wire 21 is coated with a polyurethane resin layer 22, so that the surface of the wire 21 is not oxidized and blackened under a long-term normal temperature working state, and the wire 21 is resistant to 150%. The high temperature resistance of high temperature above 100 degrees, and make the wire 21 have better direct welding performance; the surface of the polyurethane resin layer 22 is also coated with a nylon resin layer 23, which further increases the insulation effect of the conductor surface and reduces the number of conductors. The friction coefficient of the surface, on the other hand, the arrangement of the polyurethane resin layer 22 and the nylon resin layer 23 on the surface of the wire 21 makes the insulation performance between the wire 21 and the wire 21 very stable, thereby avoiding the contact between the wires 21 from time to time. phenomenon, so that the resistance of the wire 21 is very stable.

Fiber filament 1 adopts bulletproof filament, which makes full use of the characteristics of high strength and excellent flame resistance of bulletproof filament, so that the product has good flame retardancy.

Embodiment 2

A multi-strand helical signal line as shown in Fig. 3 and Fig. 4 includes fiber filaments 1 and conductors, the conductors include 8 wires 21, the signal wires are of the same length and the distance between the wires 21 and the wires 21 is the same Under the circumstance of the present invention, the winding pitch of the single wire 21 of the present invention becomes larger, and the number of winding turns is reduced, so that the required length of each wire 21 is shortened, and the number of wires 21 is increased, so that the utility model can Compared with the traditional technology, the new type reduces the impedance to a certain extent.

The diameter of each wire 21 is in the range of 0.02-0.15 mm, and the smaller diameter makes the overall diameter of the utility model smaller. Compared with the existing braided wire, the utility model has better plasticity.

The wires 21 are parallel to each other and wound on the surface of the fiber filament 1 in a spiral shape, and the adjacent conductors of each circle are arranged at equal distances, that is, as shown in FIG. A certain distance is left as required, so that the utility model has better plasticity.

The wire 21 is made of alloy material, and the surface of each wire 21 is coated with a polyurethane resin layer 22, so that the surface of the wire 21 is not oxidized and blackened under a long-term normal temperature working state, and the wire 21 is resistant to 150%. The high temperature resistance of high temperature above 100 degrees, and make the wire 21 have better direct welding performance; the surface of the polyurethane resin layer 22 is also coated with a nylon resin layer 23, which further increases the insulation effect of the conductor surface and reduces the number of conductors. The friction coefficient of the surface, on the other hand, the arrangement of the polyurethane resin layer 22 and the nylon resin layer 23 on the surface of the wire 21 makes the insulation performance between the wire 21 and the wire 21 very stable, thereby avoiding the contact between the wires 21 from time to time. phenomenon, so that the resistance of the wire 21 is very stable.

Fiber filament 1 adopts bulletproof filament, which makes full use of the characteristics of high strength and excellent flame resistance of bulletproof filament, so that the product has good flame retardancy.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (6)

1. A multi-strand helical signal line, characterized in that it comprises a filament and a conductor, the conductor comprises at least eight wires, the wires are parallel to each other and are wound on the surface of the filament in a spiral shape, each of the wires The surface is coated with a polyurethane resin layer. 2 . The multi-strand helical signal wire according to claim 1 , wherein the wire is made of an alloy material. 3 . 3 . The multi-strand helical signal line according to claim 1 , further comprising a nylon resin layer, and the nylon resin layer is coated on the surface of the polyurethane resin layer. 4 . 4. The multi-strand helical signal wire according to claim 1, wherein the diameter of each wire is in the range of 0.02-0.15 mm. 5. The multi-strand helical signal line according to any one of claims 1-4, wherein the adjacent conductors in each circle are closely arranged. 6. The multi-strand helical signal line according to any one of claims 1-4, wherein the adjacent conductors in each circle are arranged at equal distances.

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