CN212847737U - Hot melt self-adhesion litz wire - Google Patents

Abstract

The utility model discloses a hot melt self-adhesion litz wire wraps a plurality of copper conductor, polyurethane and nylon wire, and the polyurethane cladding forms the enameled wire in the outside of every copper conductor, and the enameled wire spiral stranding becomes the stranded wire, and the spiral commentaries on classics of nylon wire is around the outside of stranded wire and cladding stranded wire under the hot melt state, and the bilateral thickness of nylon wire is 0.004-0.012mm, and the outside of nylon wire scribbles surface lubricant. The hot-melt self-adhesive litz wire is simple to manufacture, reduces the flow process on production operation, reduces the whole thickness size and increases the strand number of the enameled wire under the condition of equal outer diameter, thereby reducing the whole resistance value, increasing the inductance value and the inductance, improving the electrical property and having good plasticity on the whole.

Description

Hot melt self-adhesion litz wire

Technical Field

The utility model relates to a technical field of cable especially relates to a hot melt self-adhesion litz wire.

Background

With the continuous progress and development of the industrial society, the application range of the litz wire is wider and wider, and the automatic and high-speed production of various litz wires is completely realized.

However, the traditional litz wire needs to be coated with a layer of polyester yarn after the copper conductor is twisted, and then is coated with a layer of nylon yarn, and during production, because two layers of yarn are required for coating, the material cost is high, the production procedures are more, the corresponding equipment is also more, because the ratio of the two layers of yarn to the outer diameter of the litz wire is high, the litz wire with the outer diameter is also finished, the strand number of the twisted enameled wire is limited, the strand number of the enameled wire is less, and the corresponding inductance, resistance and other electrical properties are lower.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: the utility model provides a hot melt self-adhesion litz wire for solve the problem that prior art exists.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a hot melt self-adhesion litz wire, includes a plurality of copper conductor, polyurethane and nylon wire, the polyurethane cladding is every the outside of copper conductor forms the enameled wire, the enameled wire spiral twists into for the stranded wire, the spiral commentaries on classics of nylon wire is in the outside of stranded wire and cladding under the hot melt state the stranded wire, the bilateral thickness of nylon wire is 0.004-0.012mm, the outside of nylon wire scribbles surface lubricant.

As a preferred technical solution, the number of the strands of the enameled wire is seven, and six strands of the enameled wire surround and surround a strand of the enameled wire.

As a preferable technical scheme, the temperature of the nylon yarn in a hot melting state is 110 +/-30 ℃.

As a preferable technical solution, the nylon yarn is transparent in a hot-melt state.

The utility model has the advantages that: the hot melt self-adhesive litz wire is simple to manufacture, reduces the flow process on production operation, reduces the whole thickness size and increases the strand number of enameled wires under the condition of equal outer diameter, thereby reducing the whole resistance value, increasing the inductance value and the inductance, improving the electrical property and having good plasticity on the whole.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic view of an overall structure of a hot-melt self-adhesive litz wire according to an embodiment.

In fig. 1:

1. a copper conductor; 2. a polyurethane; 3. nylon wire; 4. a surface lubricant.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1, in this embodiment, a hot-melt self-adhesive litz wire includes a plurality of copper conductors 1, polyurethane 2 and nylon wires 3, the polyurethane 2 covers the outer side of each copper conductor 1 to form an enameled wire, the enameled wire is twisted into a twisted wire in a spiral manner, the nylon wires 3 are spirally wound on the outer side of the twisted wire and cover the twisted wire in a hot-melt state, the thickness of the nylon wires 3 is 0.004mm, in other embodiments, the thickness of the nylon wires 3 may also be 0.012mm, 0.010mm, and the outer side of the nylon wires 3 is coated with a surface lubricant 4.

The number of the strands of the enameled wires is seven, six strands of the enameled wires surround one strand of the enameled wires, the temperature of the nylon wire 3 in a hot melting state is 110 ℃, in other embodiments, the temperature of the nylon wire 3 in the hot melting state can be 80 ℃ or 140 ℃, and the nylon wire 3 is transparent in the hot melting state.

In the production process, firstly, the outer side of the copper conductor 1 is coated with the polyurethane 2 with single-layer insulation to form the enameled wire, seven strands of the enameled wire which are gathered together are stranded by using a stranding machine, after the stranding, the whole section of a wire harness can become a theoretical round shape, which is beneficial to the roundness degree after coating a self-adhesive wire layer, then the surface of the stranded wire is coated with the nylon wire 3 with an adhesive effect, the original polyester wire coating is cancelled, then the wire is subjected to heat setting at the temperature of 110 ℃ by using a heat setting machine according to the DV value of 12 (in other embodiments, the DV value can also be 7, 9, 15 and 17), the litz wire formed after the setting is fully cooled, the cooling cycle is carried out for 5-8 times, finally, the surface lubricant 4 is coated on the surface to complete a finished product, and the color of the outer surface of the hot-melt self-adhesive litz wire is the original color of the enameled wire after, can adapt to the needs of partial customers and can be widely applied to the wireless charging transmitting terminal module.

It should be noted that the above embodiments are only preferred embodiments of the present invention and the technical principles applied, and any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention.

Claims (4)

1. The utility model provides a hot melt self-adhesion litz wire, its characterized in that includes a plurality of copper conductors, polyurethane and nylon wire, the polyurethane cladding is every the outside of copper conductor forms the enameled wire, the enameled wire spiral stranding becomes the stranded wire, the nylon wire is spiral to be wound around the outside of stranded wire and cladding under the hot melt state the stranded wire, the bilateral thickness of nylon wire is 0.004-0.012mm, the outside of nylon wire scribbles surface lubricant.

2. The hot melt self-adhesive litz wire according to claim 1, wherein the number of strands of the enamel wire is seven, and six strands of the enamel wire are surrounded on the outer side of one strand of the enamel wire.

3. A hot melt self adhesive litz wire according to claim 1, characterized in that the temperature of the nylon filaments in the hot melt state is 110 ± 30 ℃.

4. The hot melt self adhesive litz wire of claim 1 wherein the nylon filaments are transparent in the hot melt state.

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