CN201298398Y

CN201298398Y - Earphone wire

Info

Publication number: CN201298398Y
Application number: CNU2008201677512U
Authority: CN
Inventors: 何文求; 易雄飞
Original assignee: ZHEJIANG FUSINE TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG FUSINE TECHNOLOGY Co Ltd
Priority date: 2008-11-12
Filing date: 2008-11-12
Publication date: 2009-08-26
Anticipated expiration: 2018-11-12

Abstract

The utility model discloses an earphone wire, which comprises a wire core strand, the wire core strand comprises a plurality of wire cores which are mutually intertwisted, and a coating layer of thermoplastic polyester elastomer is arranged outside the wire core strand. the earphone wire has the advantages that the coating layer of thermoplastic polyester elastomer is arranged outside the wire core strand, so that under the principles of not affecting smaller wire diameter of the earphone wire and light earphone wire, the utility model not only avoids the phenomenon that the surface varnish film damage is caused in the process of processing the wire cores to be the wire core strand after the wire cores are coated with insulation paint in the prior art, and the insulation property of the wire core strand is enhanced, but also can be directly coated with tin and processed when the earphone wire and other elements are welded and processed, therefore, the processing cost is saved, and the processing quality is ensured at the same time. The thinnest thickness of the coating layer of the thermoplastic polyester elastomer can be 0.03 mm, so that the utility model not only ensures outer diameter of the earphone wire to be small enough, but also can ensure good insulation property of the wire core strand and enough mechanical strength of the earphone wire.

Description

A kind of earphone cord

Technical field

The utility model relates to a kind of audio frequency jockey, especially relates to a kind of earphone cord.

Background technology

Because light and handy, the easy-to-use requirement of earphone cord has determined it to be designed to have less line footpath, therefore, at present, earphone cord is widely-used a kind of itself to possess the enamelled wire of insulation property as the conductor transferring material.But core is processed into after coating insulating varnish and easily produces phenomenons such as surface lacquer membrane damage, pinhole number increase in the process of synnema, thereby greatly reduces the insulation property of synnema.

On the other hand, if adopt coating to solve the insulation property problem, then this earphone cord with other components and parts welding processing before need take peeling to go up the technology of tin again, can increase processing cost, while is as easy as rolling off a log stripping broken string core when carrying out peeling, thereby causes the core conducting resistance to increase, and influences electric function.

Summary of the invention

It is good that technical problem to be solved in the utility model provides a kind of insulation property, and can directly go up the earphone cord of tin.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of earphone cord, comprise the core synnema, described core synnema is made up of many cores that twist together mutually, described core synnema is outside equipped with thermoplastic polyester elastomer (TPEE, Thermoplastic Polyeher Ester Elastomer) coating layer.

The thickness of described thermoplastic polyester elastomer coating layer is 0.03mm.

Described core synnema be filled with thermoplastic polyester elastomer in the gap between the core in twos.

Compared with prior art, advantage of the present utility model is that the core synnema is outside equipped with the thermoplastic polyester elastomer coating layer, do not influencing under the principle that earphone cord line footpath is less, earphone cord is light and handy, not only avoided core in the prior art to coat the phenomenon that produces the surface lacquer membrane damage in the process that is processed into synnema behind the insulating varnish, the insulation property of core synnema have been strengthened, and earphone cord of the present utility model is with other components and parts welding processing the time, tin processing can be directly gone up, crudy can be guaranteed again when saving processing cost; The thinnest 0.03mm that reaches of the thickness of thermoplastic polyester elastomer coating layer of the present utility model has guaranteed that not only the external diameter of earphone cord is enough little, and can guarantee core synnema good insulation performance performance and the enough mechanical strengths of earphone cord.

Description of drawings

Fig. 1 is the novel cross section structure schematic diagram of this reality.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, a kind of earphone cord, comprise the core synnema, the core synnema is made up of the many cores 1 that twist together mutually, the core synnema is outside equipped with thermoplastic polyester elastomer coating layer 2, it is less that being arranged on of thermoplastic polyester elastomer coating layer 2 do not influence earphone cord line footpath, under the light and handy principle of earphone cord, not only avoided core in the prior art to coat the phenomenon that produces the surface lacquer membrane damage in the process that is processed into synnema behind the insulating varnish, the insulation property of core synnema have been strengthened, and earphone cord of the present utility model is with other components and parts welding processing the time, tin processing can be directly gone up, crudy can be guaranteed again when saving processing cost.

The thinnest 0.03mm that reaches of the thickness of this thermoplastic polyester elastomer coating layer 2 has guaranteed that not only the external diameter of earphone cord is enough little, and can guarantee core synnema good insulation performance performance and the enough mechanical strengths of earphone cord.

In the gap between the core in twos of core synnema, also can fill thermoplastic polyester elastomer.

Claims

1, a kind of earphone cord comprises the core synnema, and described core synnema is made up of many cores that twist together mutually, it is characterized in that described core synnema is outside equipped with the thermoplastic polyester elastomer coating layer.

2, a kind of earphone cord according to claim 1, the thickness that it is characterized in that described thermoplastic polyester elastomer coating layer is 0.03mm.

3, a kind of earphone cord according to claim 1, what it is characterized in that described core synnema is filled with thermoplastic polyester elastomer in the gap between the core in twos.