CN203910309U

CN203910309U - Earphone line

Info

Publication number: CN203910309U
Application number: CN201420326587.0U
Authority: CN
Inventors: 朴承夏
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-18
Filing date: 2014-06-18
Publication date: 2014-10-29
Anticipated expiration: 2024-06-18

Abstract

The utility model discloses an earphone line, which comprises a kelver and a plurality of copper wire conductors, and is characterized in that the copper wire conductors are wound on the kelver in a spiral manner to form a single-core conductor, and the surface of each copper wire conductor is coated with a layer of silver coating; the surface of the single-core conductor is coated with a first insulating layer made of Teflon materials, a plurality of the single-core conductors and the first insulating layers form a single-core electric wire, a plurality of the single-core electric wires are twisted with one another, the surface of the plurality of single-core electric wires is coated with a second insulating layer made of halogen-free polyolefin materials, and the surface of the second insulating layer is coated with a third insulating layer made of nylon materials. According to the earphone line, the surfaces of the copper wire conductors are silver plated, thereby enhancing the sensitivity of sound effect; the insulating layers are made of transparent materials, thereby the appearance effect of the silver plated conductors can be showed; and the nylon material insulating layer on the outermost layer is oil resistant, sweat resistant, dirt resistant and wear resistant, and does not discolor easily, so that the earphone is durable.

Description

A kind of earphone cord

Technical field

The utility model belongs to earphone material technology field, is specifically related to the earphone cord of a kind of transparent material as insulating barrier.

Background technology

Existing earphone cord structure is generally only to cover dielectric layers on single core conductor surface, conductive surface is coated with mylar as the first insulating barrier, and then the outside of earphone cord scribbles the second insulating barrier, the material of the second insulating barrier is generally selected thermoplastic elastomer (TPE) (TPE), the shortcoming of the earphone cord that this material is made be do not bear dirty, not wear-resisting, insulating barrier easily breaks.

Utility model content

The purpose of this utility model is to provide one can oil resistant, sweat proof, wear-resisting, and appearance transparent fashion and insulating material be a kind of earphone cord of environmental protection comparatively.

For realizing above-mentioned utility model object, the utility model has adopted following technical scheme:

A kind of earphone cord, comprises anti-elater and some copper conductors, it is characterized in that, described copper conductors is wrapped on described anti-elater and forms single core conductor with helical form, and the surface coverage of described every copper conductors has one deck silver coating; The first insulating barrier that has Teflon material to make in described single core conductor surface coverage, described some single core conductors and the first insulating barrier form a single core cable, described some single core cables twist together mutually, the second insulating barrier that has halogen-free polyolefin to make in described some single core cable surface coverage, is also coated with at described the second surface of insulating layer the 3rd insulating barrier that nylon material is made.

As one of preferred version, the diameter of described copper conductors is 0.04～0.08mm, and the number of described copper conductors is 10～30.

As one of preferred version, the described radical of stranded single core cable is mutually 2 or 3 or 4.

As one of preferred version, described Teflon material is the one in PTFE (polytetrafluoroethylene), FEP (fluorinated ethylene propylene copolymer), PFA (crossing fluoroalkyl compound) or ETFE (ethylene-tetrafluoroethylene copolymer).

As one of preferred version, described halogen-free polyolefin is polypropylene or polyethylene.

As one of preferred version, the thickness of described the first insulating barrier is 0.04～0.08mm; The thickness of described the second insulating barrier is 0.10～0.3mm; The thickness of described the 3rd insulating barrier is 0.07～0.1mm.

Utility model advantage:

Earphone cord structure described in the utility model is compared with traditional earphone cord structure, and tool has the following advantages:

1. copper conductors electroplate, can promote the sensitivity of audio, and parsing power strengthens, and can promote high frequency;

2. insulating barrier is transparent material and makes, and can represent the appearance effect of silver-plated conductor;

3. insulating barrier all adopts environment-friendly materials to make, and is conducive to environmental protection.

Outermost nylon material insulating barrier oil resistant, sweat proof, bear dirty, wear-resisting, and be not easy variable color, make earphone durable in use.

Brief description of the drawings

Fig. 1 is the single core cable cross-sectional view of earphone cord described in the utility model;

Fig. 2 is four stranded cross-sectional view of single core cable of earphone cord described in embodiment

Fig. 3 is the stranded axial arrangement schematic diagrames of four single core cables of earphone cord described in embodiment;

Fig. 4 is the schematic flow sheet of earphone cord manufacturing process described in the utility model.

Wherein, 1, anti-elater, 2, copper conductors, 3, the first insulating barrier, 4, the second insulating barrier, 5, the 3rd insulating barrier.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, the technical solution of the utility model is further described.

As shown in FIG. 1 to 3:

A kind of earphone cord, comprises anti-elater 1 and some copper conductors 2, and described copper conductors 2 is wrapped on described anti-elater 1 and forms single core conductor with helical form, and the surface coverage of described every copper conductors 2 has one deck silver coating; The first insulating barrier 3 that has Teflon material to make in described single core conductor surface coverage, described some single core conductors and the first insulating barrier 3 form a single core cable, described some single core cables twist together mutually, the second insulating barrier 4 that has halogen-free polyolefin to make in described some single core cable surface coverage, is also coated with on described the second insulating barrier 4 surfaces the 3rd insulating barrier 5 that nylon material is made.

The diameter of described copper conductors 2 is 0.05mm, and the number of described copper conductors 2 is 28.

The described radical of stranded single core cable is mutually 2 or 3 or 4.The present embodiment adopts 4 structures that single core cable is stranded.

In the present embodiment, described Teflon material is ETFE (ethylene-tetrafluoroethylene copolymer).

In the present embodiment, described halogen-free polyolefin is polypropylene.

The thickness of described the first insulating barrier is 0.04～0.08mm;

The thickness of described the second insulating barrier is 0.10～0.3mm;

The thickness of described the 3rd insulating barrier is 0.07～0.1mm.

As described in Figure 4: the manufacturing process of the present embodiment earphone cord as above, comprises the steps:

Step 1: some copper cash choosing electroplate are led: 2 are wrapped on anti-elater 1 and make single core conductor with helical form;

Step 2: use extruder to extrude Teflon material on single core conductor surface and make the first insulating barrier 3 and form single core cable; The extrusion die management and control temperature of extruder is 300 ± 10 DEG C, and the thickness of the first insulating barrier of extruding is 0.04～0.08mm;

Step 3: choose 4 single core cables mutually stranded, when stranded, tension force wants balanced;

Step 4: after stranded completing, use extruder is extruded halogen-free polyolefin and made the second insulating barrier 4 on its surface; The extrusion die management and control temperature of extruder is 220 ± 10 DEG C, and the thickness of the second insulating barrier of extruding is 0.10～0.3mm;

Step 5: use extruder in the second insulation: 4 surfaces are extruded nylon material and made the 3rd insulating barrier 5; The extrusion die management and control temperature of extruder is 225 ± 10 DEG C, and the thickness of the 3rd insulating barrier 5 of extruding is 0.07～0.1mm.

In another preferred embodiment of the present utility model, described the second insulating barrier 4 also can adopt PVC (polyvinyl chloride) material to make, and described PVC material includes plumbous PVC and lead-free PVC.

It is to be noted; as described above is only in order to explain the preferred embodiment of the utility model; not attempt is done any formal restriction to the utility model according to this; be with; all any modification or changes that has the relevant the utility model of doing under identical utility model spirit, all must be included in the category of the utility model intention protection.

Claims

1. an earphone cord, comprises anti-elater and some copper conductors, it is characterized in that, described copper conductors is wrapped on described anti-elater and forms single core conductor with helical form, and the surface coverage of described every copper conductors has one deck silver coating; The first insulating barrier that has Teflon material to make in described single core conductor surface coverage, described some single core conductors and the first insulating barrier form a single core cable, described some single core cables twist together mutually, the second insulating barrier that has halogen-free polyolefin to make in described some single core cable surface coverage, is also coated with at described the second surface of insulating layer the 3rd insulating barrier that nylon material is made.

2. earphone cord according to claim 1, is characterized in that, the diameter of described copper conductors 2 is 0.04～0.08mm, and the number of described copper conductors 2 is 10～30.

3. earphone cord according to claim 1, is characterized in that, the described radical of stranded single core cable is mutually 2 or 3 or 4.

4. earphone cord according to claim 1, is characterized in that, the thickness of described the first insulating barrier is 0.04～0.08mm; The thickness of described the second insulating barrier is 0.10～0.3mm; The thickness of described the 3rd insulating barrier is 0.07～0.1mm.