CN210156129U - Earphone connecting wire - Google Patents

Abstract

The utility model discloses an earphone connecting wire. The earphone connecting wire comprises a plurality of wires, an elastic silk thread and an outer insulating sheath. The plurality of wires are insulated from each other and wound on the surface of the elastic silk thread side by side to form a plurality of continuous spiral structures; the distance between every two adjacent spiral structures is 2-4 times of the width of each spiral structure; the outer insulating sheath is wrapped outside the lead and the elastic silk thread. The earphone connecting wire has the advantages that the structural form of winding side by side is used, the parameters such as the distance between the adjacent spiral structures are controlled, so that the adjacent spiral structures are provided with enough bending spaces, when the earphone connecting wire is bent, the actual width of the spiral structures is increased based on the bending spaces, the bending resistance of the wire is effectively improved, and the wire can have a smaller wire diameter.

Description

Earphone connecting wire

Technical Field

The utility model relates to a wire rod field, in particular to earphone connecting wire.

Background

The earphone connecting wire or the audio connecting wire is a wire frequently used in daily life and is mainly used for transmitting audio data between a player and transducer equipment such as a loudspeaker or an earphone. In its daily use, the headset is a portable device. Therefore, the earphone connecting wire is generally bent and stretched, and even is often twisted.

On the one hand, the earphone connection line must have a strong resistance to bending and stretching due to the requirements of the daily use environment to ensure that the earphone can be reliably used. On the other hand, the earphone connecting line also needs to ensure that too many signals are not lost in the signal transmission process, otherwise, the playing tone quality of the earphone is seriously affected.

Therefore, how to provide an earphone connecting line with good bending resistance and simultaneously capable of ensuring stable audio signal transmission is a hot issue of research.

The utility model provides a novel superstrong anti-bending and anti-bending conductor wire in the chinese utility patent with application number 201220609213.0, it specifically is with the copper wire wraparound in the outside of preventing disconnected silk conductor, and the mode of wraparound is the screw thread rotation type wraparound mode.

The thread winding structure of the conductive wire can improve the bending resistance of the wire and can achieve repeated folding and bending for more than millions of times. However, in an actual product, the use environment is complex and variable, and the bending mode and the bending frequency are different, so that the bending resistance of the actual product in a real environment has a larger difference from the bending resistance in a test environment.

Therefore, how to apply the structure of the conductive wire to the earphone connecting wire, improve the bending resistance and ensure the reliable transmission of audio data at the same time is a technical problem which needs to be solved urgently by the technical personnel in the field.

Disclosure of Invention

The utility model aims at providing an earphone connecting wire can solve the problem of not nai buckling that the earphone connecting wire exists among the prior art.

In a first aspect, an embodiment of the present invention provides an earphone connection line. The earphone connecting wire comprises a plurality of wires, an elastic silk thread and an outer insulating sheath; the plurality of wires are insulated from each other and wound on the surface of the elastic silk thread side by side to form a plurality of continuous spiral structures; the distance between every two adjacent spiral structures is 2-4 times of the width of each spiral structure; the outer insulating sheath is wrapped outside the lead and the elastic silk thread.

Furthermore, the included angle between the spiral structure and the elastic silk thread ranges from 30 degrees to 60 degrees.

Further, the pitch of the helical structure is 0.1-2 times the diameter of the wire.

Further, the distance between the adjacent spiral structures is 3 times of the width of the spiral structures, and the thread pitch of the spiral structures is 1 time of the diameter of the elastic thread.

Further, the plurality of wires are wound in 2 to 3 layers on the surface of the elastic thread.

Furthermore, the conducting wires are enamelled wires and comprise at least four conducting wires.

Further, the conducting wire is wound on the surface of the elastic silk thread by two layers; the first layer and the second layer are respectively wound with 2 wires.

Further, an isolation layer is arranged between the first layer and the second layer; the isolation layer wraps the elastic silk thread and two conducting wires wound on the surface of the elastic silk thread.

Further, the stretch yarn comprises aramid fiber yarn.

Further, the earphone connecting wire further comprises a shielding layer, and the shielding layer is arranged on the inner side wall of the outer insulating sheath.

The embodiment of the utility model provides an earphone connecting wire, it uses side by side winding structural style, through the interval isoparametric between the adjacent helical structure of control for will have sufficient space of buckling between each adjacent helical structure, when buckling earphone connecting wire, will be based on buckle the space and increase helical structure's actual width.

In other words, when the earphone connecting wire is subjected to bending operation, the wires have enough bending margin to offset the width increasing requirement of the spiral structure by the bending operation, so that the bending resistance of the wires is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of an earphone connecting wire provided by an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an earphone connection line according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an earphone connecting wire according to an embodiment of the present invention, as shown in the figure, the earphone connecting wire includes: a plurality of wires 101, a resilient wire 102, and an outer insulating sheath 103.

The plurality of wires 101 are insulated wires, and are used to establish corresponding electrical connection paths. The elastic threads 102 are a base material for providing suitable elastic deformability, and can play a corresponding supporting role. The outer insulating sheath 103 is a sheath wrapped around the wires 101 and the elastic threads 102, and serves to protect the wires and the elastic threads from the inside and prevent moisture, dust, and the like from entering the inside.

The wire, the elastic silk thread and the outer insulating sheath can select and use wires with corresponding wire diameters, types and the like according to the requirements of actual conditions. For example, the enameled wire meeting the specification requirement can be selected and used as the conducting wire, the elastic silk yarn can be yellow lead yarn made of aramid fiber yarn, the outer insulating sheath can be made of polyurethane plastic, and the requirement of actual use can be met.

A plurality of wires 101 are wound side by side on the surface of the elastic thread to form a plurality of continuous helical structures 104. The helical structure refers to a repeatable minimum unit wound on the surface of the elastic thread, and a plurality of side-by-side wires are wound at the same angle, thereby forming a regular helical winding body similar to a spring.

The number of the wires 101 used in particular may be determined according to actual situations, for example, in a typical two-channel earphone connection line, 4 wires 101 may be used for the electrical connection of the left channel, the right channel, the microphone and the common negative electrode.

The plurality of helical structures 104 have a spacing (denoted by f in fig. 1) therebetween. Each helix is determined by the number of wires, the wire diameter of the wires, etc. (denoted by e in fig. 1). And the distance between every two adjacent spiral structures is 2-4 times of the width of each spiral structure.

Compared with the prior art, the utility model discloses a core improves the part and lies in: the distance between the adjacent spiral structures is 2-4 times of the width of the spiral structures, so that enough bending space is formed between the adjacent spiral structures.

When bending the bending-resistant wire, the actual width of the helical structure will be increased based on the bending space due to the large bending space between the adjacent helical structures. In other words, when the earphone connecting wire is bent, the wire has enough bending margin to offset the width increase requirement of the spiral structure for the bending operation.

Because in the earphone connecting wire, helical structure is repeated and continuous to the interval between the adjacent helical structure is 2 ~ 4 times of helical structure width, so whole earphone connecting wire has better anti buckling performance.

Generally speaking, since the spiral structure is formed by winding a plurality of wires, and the actual size of the wires is very small, the actual size of the spiral structure is also very small, so that although the distance between adjacent spiral structures is 2-4 times of the width of the spiral structure, the distance between adjacent spiral structures is also very small, and the earphone connecting wire is very long relative to the spiral structure as a whole, so that the finally obtained earphone connecting wire has the bending space virtually everywhere.

This is of great significance for the earphone connection line, which means that the earphone connection line as a whole is virtually resistant to bending everywhere, and no matter which part of the earphone connection line is bent, there is a corresponding bending space to buffer the requirement for the increase in the width of the spiral structure.

It should be noted that the spacing between adjacent helical structures is not too small nor too large. If the spacing between adjacent helices is too small, it provides less bending space and may not meet the bend resistance requirements. If the distance between adjacent helical structures is too large, the elastic silk threads connected between the adjacent helical structures are arranged in the transverse direction and the distance between the wires arranged in the transverse direction is too long, so that when the bending operation is carried out, the elastic silk threads connected between the adjacent helical structures have a large risk of wire breakage, and if the wires are broken, the integral damage of the earphone connecting wire can be caused.

The utility model discloses through the experiment of the applicant numerous times prove, when interval between adjacent helical structure is 2 ~ 4 times of helical structure width, can guarantee to provide great space of buckling, reach anti buckling performance requirement, to the wire between the adjacent helical structure simultaneously, it is unlikely to past too much angle of transverse inclination, and length is unlikely to the overlength, can avoid this part pencil to take place the problem of broken string when buckling many times.

In a specific application scene, the interval between adjacent helical structure is 3 times of the helical structure width, and under this condition, the holistic anti buckling performance of earphone connecting wire is best, can guarantee to have sufficient space of buckling, and the wire also is difficult for taking place the broken string risk between the adjacent helical structure simultaneously.

Through the embodiment of the utility model provides an earphone connecting wire is owing to set up a reasonable interval between adjacent helical structure for earphone connecting wire is whole everywhere to have anti bending performance, even buckle many times to a certain position of earphone connecting wire, also can not take place the broken string problem, thereby has improved the anti bending performance of whole of earphone connecting wire.

In some embodiments, there is actually one winding angle of the helical structure. This winding angle also has an effect on the bending resistance of the earphone connection wire.

If the elastic yarn to be wound is placed horizontally, an included angle (acute angle) between the plurality of wires in the spiral structure and the elastic yarn when the plurality of wires are wound around the elastic yarn is the winding angle.

In the present application, the winding angle of the spiral structure should not be too large, nor too small. If the winding angle of the spiral structures is too large, the wires between the adjacent spiral structures are close to the direction of the elastic threads, the wires connecting the adjacent spiral structures incline to the horizontal direction, and the bending resistance of the wires is affected.

If helical structure's winding angle undersize, helical structure self wire can incline to the horizontal direction so, influences the anti performance of buckling of helical structure self wire, so when setting up winding angle, should both pay attention to the anti performance of buckling of helical structure self wire, pay attention to the anti performance of buckling of wire between the helical structure again, the embodiment of the utility model provides an in, through the experiment that the applicant is numerous, set up winding angle to the contained angle of 30 ~ 60 degrees, can guarantee that the wire rod keeps better anti performance of buckling on the whole, and can not lead to the anti performance of buckling of some to reduce.

In the above embodiment, the spacing between adjacent helical structures 104 is defined so that the wire has bending resistance at those locations. However, when the wire is bent, the specific bending position is variable, if the pitch between adjacent wires in the helical structure is small, the helical structure 104 will start to loosen from the wires at both ends (due to the bending space between adjacent helical structures 104), while the wire in the middle of the helical structure 104 will not loosen in time due to too small pitch, and will still be in the original structure, and the acting force caused by bending cannot be buffered, which may cause the wire in the middle to break,

accordingly, the structure of the spiral structure 104 can be further optimized, so that when the earphone connecting wire is bent, the requirement of increasing the width of the wire in the spiral structure 104 can be met, the spiral structure 104 has certain bending resistance,

specifically, in another embodiment of the present invention, the pitch between adjacent wires is controlled to be 0.1-2 times the diameter of the wire, so that the helical structure 104 itself has a bending space. That is, when the wire is bent, a certain gap is formed between adjacent wires in the helical structure 104, so that a bending space is provided for the wire, and the helical structure 104 itself has a certain bending resistance.

Of course, the pitch is not arbitrarily set. The undersize of the thread pitch can lead to the situation that timely and effective buffering cannot be achieved, and the risk of breakage of the middle lead is increased. Too large a pitch may result in too small a winding angle of the wire, causing the wire to tilt in the direction of the elastic thread, which may also lead to an increased risk of breakage.

In the embodiment of the present invention, through numerous experiments by the applicant, the inventive discovery will set the pitch to 0.1-2 times of the diameter of the wire, so that the spiral structure 104 has better bending resistance. In a specific application scenario, however, the pitch is set to 1 times the wire diameter, which exhibits the best bending resistance.

Obviously, the cross section of the wire is usually circular, so the above-mentioned pitch size is also taken as a diameter as a reference, but it is easy to be understood by those skilled in the art that the cross section of the wire may also adopt other deformed structures, such as a polygonal structure, or be configured into other structures according to the needs of the practical application scenario. In the case of these deformation structures of the wire cross section, the pitch between the wires can be set to 0.1 to 2 times the wire width.

In other embodiments, the conductor may further be wound with 2-3 layers on the surface of the elastic thread, and an isolation layer is disposed between adjacent layers to separate conductors belonging to different layers.

Specifically, when only one layer is wound, the wire can be ensured to have strong bending resistance as a whole, but the number of signal paths which can be transmitted is limited. If twine the multilayer, then can guarantee to transmit multichannel signal simultaneously, nevertheless inevitably can reduce the holistic anti bending performance of wire rod to the number of piles of winding is more, and anti bending performance descends then more, so in the embodiment of the utility model discloses the wire of twining too many numbers of piles is not recommended, twines 3 layers at most generally, twines 2 layers preferably to guarantee to have sufficient anti bending performance.

When winding a plurality of layers of wires, an isolation layer (such as insulating glue, etc.) can be arranged between adjacent layers, so that signal transmission between different layers can not interfere with each other. Specifically, after winding a layer of the multi-bundle conductor, an insulating layer, such as an insulating glue, may be coated on the surface of the layer of the multi-bundle conductor. And then, continuously winding a new plurality of wires on the insulating layer, wherein the winding mode of the second layer is the same as that of the first layer, and the finally obtained winding structure can be completely the same or slightly different according to the requirement, for example, the winding angle can be different, and the winding intercept can be different.

However, in any winding structure, the winding manner is the same, that is, "a plurality of repeated and continuous spiral structures 104 are formed, the wires in the spiral structures 104 are wound side by side at the same angle, and the distance between the adjacent spiral structures 104 is 2-4 times of the width of the spiral structures 104"

Please refer to fig. 2, fig. 2 is a schematic structural diagram of an earphone connection line according to another embodiment of the present invention. The number of the wires 101 is 4, and two wires 101 are wound on each layer. An isolation layer 105 is provided between the first and second layers.

Two of the wires 101 are wound on the surface of the elastic thread 102, and after the isolation layer 105 is encapsulated, the other two wires 101 are wound on the surface of the isolation layer in the same manner, and further externally sheathed with an outer insulating sheath 103.

In some embodiments, the earphone connecting wire may further include a shielding layer made of lead foil and the like, and the shielding layer is disposed on an inner side wall of the outer insulating sheath to play a role of electromagnetic shielding and enhance signal transmission quality of the earphone connecting wire.

The embodiment of the utility model provides an earphone connecting wire, further use multilayer winding mode on helical structure's basis, can have the effect similar with coaxial cable, signal transmission's quality is better, is difficult to attenuate in transmission process and receives the interference. Moreover, compared with the traditional shielding twisted-pair cable, coaxial cable and the like, the used spiral structure has remarkable advantages in bending resistance, and can be well suitable for the use occasions of earphone connecting wires.

It should be noted that fig. 1 and fig. 2 are only schematic structural diagrams drawn for convenience of description, and in an actual product, each core wire or wire has a very small diameter, so that in an actual product, the width of the spiral structure, and the distance between adjacent spiral structures are very small, so that the wire between adjacent spiral structures does not incline too much toward the core material, and can still be maintained at a preferable winding angle.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. A connecting wire of an earphone is characterized by comprising a plurality of wires, an elastic silk thread and an outer insulating sheath; the plurality of wires are insulated from each other and wound on the surface of the elastic silk thread side by side to form a plurality of continuous spiral structures; the distance between every two adjacent spiral structures is 2-4 times of the width of each spiral structure; the outer insulating sheath is wrapped outside the lead and the elastic silk thread.

2. The earphone connection cord of claim 1, wherein the helical structure forms an angle with the elastic thread in the range of 30-60 degrees.

3. The earphone connection cord of claim 1, wherein the pitch of the helical structure is 0.1-2 times the diameter of the wire.

4. The earphone connection cord of claim 3, wherein the pitch between adjacent spirals is 3 times the width of the spiral and the pitch of the spiral is 1 time the diameter of the wire.

5. The earphone connection cord of claim 1, wherein the plurality of wires are wrapped in 2 to 3 layers around the surface of the elastic wire.

6. The earphone connecting wire according to claim 5, wherein the wires are enameled wires, and comprise at least four wires.

7. The earphone connection cord as claimed in claim 6, wherein the wire is wound in two layers on the surface of the elastic thread; the first layer and the second layer are respectively wound with 2 wires.

8. The earphone connection cord of claim 7, wherein an isolation layer is disposed between the first layer and the second layer;

the isolation layer wraps the elastic silk thread and two conducting wires wound on the surface of the elastic silk thread.

9. The earphone connection cord of any one of claims 1 to 8, wherein the elastic filament yarn comprises an aramid fiber yarn.

10. The earphone connection cord of any one of claims 1-8, further comprising a shield layer disposed on an inner sidewall of the outer insulating sheath.

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