CN216353490U

CN216353490U - Earphone wire

Info

Publication number: CN216353490U
Application number: CN202123070197.0U
Authority: CN
Inventors: 刘少飞; 张梦颖; 韩恩林; 牛鸿庆; 武德珍
Original assignee: Jiangsu Xiannuo New Material Technology Co ltd
Current assignee: Jiangsu Xiannuo New Material Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-19
Anticipated expiration: 2031-12-08

Abstract

The utility model provides an earphone wire, which comprises a protective layer and a plurality of core wires; the protective layer wraps the core wire, and a first gap is formed between the core wire and the protective layer; the core wire comprises a conductor and a shielding layer, the shielding layer is wrapped outside the conductor, and a second gap is reserved between the conductor and the shielding layer; polyimide fibers are filled in the first gap and the second gap. According to the earphone wire, the polyimide fibers are filled, so that the problem of fiber bending fatigue is solved, the overall tensile property and bending resistance of the earphone are improved, and the service life of the earphone is prolonged.

Description

Earphone wire

Technical Field

The utility model relates to the technical field of conductive wires, in particular to an earphone wire.

Background

Earphones are widely used as an audio conversion unit in players such as mobile phones, audio elements, and radios. The line control earphone adopts an earphone line to connect the earphone broadcasting receiver and the external player. However, the earphone cable is worn and fatigue-bent during long-term use, thereby reducing the service life of the earphone cable. However, damage to the headset cord also renders the drive-by-wire headset useless. With the continuous development of the audio industry, the expectations of users for earphones are also increasing, and the service life of the earphones is expected to be prolonged. Therefore, there is a need for an earphone cord that is more resistant to fatigue and bending.

SUMMERY OF THE UTILITY MODEL

The utility model provides an earphone wire, which comprises a protective layer and a plurality of core wires; the protective layer wraps the core wire, and a first gap is formed between the core wire and the protective layer; the core wire comprises a conductor and a shielding layer, the shielding layer is wrapped outside the conductor, and a second gap is reserved between the conductor and the shielding layer; polyimide fibers are filled in the first gap and the second gap.

In one embodiment, the shielding layer is wrapped by an insulating layer, and the first gap is located between the protective layer and the insulating layer.

In one embodiment, the protective layer comprises an elastic layer and a wear-resistant layer, the wear-resistant layer is wrapped outside the elastic layer, and the first gap is located between the elastic layer and the insulating layer.

In one embodiment, the conductor is made of oxygen free copper and polyimide fiber wrap.

In one embodiment, the denier of the polyimide fiber wrapped with the oxygen-free copper is 500-1500D.

In one embodiment, the polyimide fibers filled in the first gap and the second gap have a denier of 500-1500D.

In one embodiment, the shielding layer is made of an aluminum foil material.

In one embodiment, the insulating layer is made of a polyimide material, and the thickness of the insulating layer is 0.1-0.3 mm.

In one embodiment, the wear layer is made of a polytetrafluoroethylene material.

In one embodiment, the resilient layer is made of a TPE material.

According to the earphone wire, the polyimide fibers are filled, so that the tensile property and the bending resistance of the whole earphone are improved, and the service life of the earphone is prolonged.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and following detailed description.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of an earphone cord in an embodiment of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to fig. 1, the earphone line of the present invention, in one embodiment, includes a protective layer 1 and a plurality of core wires 2. Wherein, the protection layer 1 wraps up outside the core 2, and is equipped with first gap 11 between core 2 and protection layer 1. The core wire 2 includes a conductor 21 and a shielding layer 22, wherein the shielding layer 22 is wrapped outside the conductor 21, and a second gap 23 is left between the conductor 21 and the shielding layer 22. Further, the first slit 11 and the second slit 23 are filled with polyimide fibers. Because the polyimide fiber has advantages such as intensity is high, toughness is good, anti buckling, consequently, pack in first gap 11 and second gap 23 and have polyimide fiber, can show the tensile ability and the anti buckling ability that strengthen the earphone cord, prolonged earphone life. Meanwhile, the polyimide fibers are not easy to absorb water, so that the earphone wire has good waterproof capability. In one embodiment, the denier of the polyimide fiber filled in the first and

second gaps

11 and 23 may be 500-1500D, and preferably may be 1500D, to further improve the tensile strength of the earphone line.

Referring to fig. 1, in one embodiment, the shield 22 is further surrounded by an insulation layer 24 such that the first gap 11 is located between the shield layer 1 and the insulation layer 24. In one embodiment, the shielding layer 22 may be made of an aluminum foil material to reduce interference of external signals. The insulating layer 24 is woven from a polyimide material and is highly insulating. The polyimide material is not easy to absorb water, and the waterproof capability of the earphone cable is further improved. Meanwhile, the thickness of the insulating layer can be set to be 0.1-0.3mm, so that the tensile strength and the bending resistance of the earphone wire are further improved.

Referring to fig. 1, in one embodiment, the protective layer 1 comprises an elastic layer 12 and a wear layer 13, wherein the wear layer 13 is wrapped around the elastic layer 12 such that the first gap 11 is located between the elastic layer 12 and the insulating layer 24. The elastic layer 12 may be made of a TPE material that is non-toxic, easy to process, and has good resistance to uv and ozone. Among them, the TPE (thermoplastic elastomer) material may be a thermoplastic elastomer, for example, a styrenic TPE, an olefinic TPE, and the like. The wear-resistant layer 13 can be made of polytetrafluoroethylene materials, and is acid-base resistant and strong in corrosion resistance.

In one embodiment, conductor 21 is made of oxygen free copper and polyimide fiber wrap. Wherein, the oxygen-free copper can effectively reduce the attenuation and loss of current signals in the conduction process. Further, the denier of the polyimide fiber wrapped with oxygen-free copper can be 500-1500D, and preferably the denier of the polyimide fiber wrapped with oxygen-free copper can be 1000D, so that the polyimide fiber has good supporting effect on the oxygen-free copper wire and prevents the wire from breaking due to excessive tension when the earphone is pulled.

According to the earphone wire, the polyimide fibers are filled in the first gap 11 and the second gap 23, so that the tensile property and the bending resistance of the whole earphone are improved, and the service life of the earphone is prolonged. And moreover, the insulating layer 24 woven by the polyimide material is adopted, so that the tensile strength and the bending resistance of the earphone cord are further improved. Meanwhile, the polyimide fibers and the polyimide material have the characteristic of being difficult to absorb water, and the waterproof capacity of the earphone cable is also improved. In addition, the conductor 21 is made by wrapping oxygen-free copper and polyimide fibers, so that the oxygen-free copper can effectively reduce the attenuation and loss of current signals in the conduction process, the polyimide fibers also provide good support for the oxygen-free copper, and the phenomenon that the lead is broken due to overlarge tension when the earphone is pulled is avoided.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An earphone wire is characterized by comprising a protective layer and a plurality of core wires; the protective layer wraps the core wire, and a first gap is formed between the core wire and the protective layer; the core wire comprises a conductor and a shielding layer, the shielding layer is wrapped outside the conductor, and a second gap is reserved between the conductor and the shielding layer; polyimide fibers are filled in the first gap and the second gap.

2. The headset cord of claim 1, wherein the shielding layer is wrapped with an insulating layer, and wherein the first gap is located between the protective layer and the insulating layer.

3. The headset cord of claim 2, wherein the protective layer comprises an elastic layer and a wear layer, the wear layer being wrapped around the elastic layer, the first gap being located between the elastic layer and the insulating layer.

4. The headset cord of claim 3, wherein the conductor is made of oxygen free copper and polyimide fiber wrap.

5. The earphone wire of claim 4, wherein the polyimide fiber wrapped with the oxygen-free copper has a denier of 500-1500D.

6. The headset cord of any one of claims 1-5, wherein the polyimide fibers filled in the first gap and the second gap have a denier of 500-1500D.

7. The headset cord of any of claims 1-5, wherein the shielding layer is made of an aluminum foil material.

8. The headset cord of any of claims 2-5, wherein the insulating layer is woven from a polyimide material, the insulating layer having a thickness of 0.1-0.3 mm.

9. The headset cord of any of claims 3-5, wherein the wear layer is made of a polytetrafluoroethylene material.

10. Earphone cord as claimed in any of claims 3-5, wherein said elastic layer is made of TPE material.