A headset antenna structure

Abstract

The utility model relates to audio equipment technical field especially relates to a earphone antenna structure, including antenna main part, is composed of a plurality of laser carving antenna, the laser carving antenna includes connecting portion and contact point, connecting portion and contact point link to each other, support part is semicircular arc structure, is divided into first support part and second support part, the outer surface of support part is equipped with surface layer groove for fitting in the antenna main part, a plurality of laser carving antenna embeds the outer surface of support part, a plurality of contact points are used for realizing circuit connection and antenna communication function, the first support part end is connected with extension assembly, and the second support part end is connected with contact assembly, the utility model discloses through increasing the bending -resistant ability of earphone antenna to improve the stability of signal transmission.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, and in particular to a headphone antenna structure. Background Technology

[0002] With the explosive growth of TWS earbuds and the continuous improvement of the intelligence of audio devices, modern earbuds are far more than just simple audio playback devices. They integrate many functions such as Bluetooth communication, voice assistants, active noise cancellation (ANC), spatial audio, and health monitoring (such as heart rate detection). These advanced functions place extremely high demands on wireless connectivity performance. Driven by these demands, antenna performance and design have become one of the key factors determining the overall earbud experience. Traditional clip-on earbuds typically use printed circuit board (PCB) antennas or metal wire antennas. As a separate component, the antenna needs to be "installed" into the device, which leads to problems such as low space utilization efficiency, difficulty in ensuring performance consistency, and complex assembly. Moreover, these antennas have certain limitations in terms of signal reception performance, structural compactness, and aesthetics.

[0003] Chinese Patent Publication No. CN107425281A discloses a headphone antenna and a Bluetooth headset. The headphone antenna is disposed on the headset, which includes: two earbuds and a support component connecting the two earbuds; the support component is made of metal; each of the two earbuds is provided with a radio frequency transceiver; an antenna feed point and a first gap are provided on the support component, the length between the antenna feed point and the first gap being a preset length; the headphone antenna includes: the antenna feed point and a first part of the support component, the first part being the portion of the support component from the antenna feed point to the first gap; by designing a portion of the metal support component connecting the two earbuds on the headset as the headphone antenna, the headphone antenna and the headset are conformal, eliminating the need for an additional antenna component, saving costs, and avoiding the impact of the small space of the headset and metal components on antenna performance, thus improving antenna radiation performance. Therefore, the headphone antenna and Bluetooth headset described herein have the following problems:

[0004] The antenna is part of the main load-bearing structure of the product. Bending, stretching or impacting the headphone support components can change the tiny geometric features of the gap, thereby directly affecting the antenna performance and causing signal instability. Utility Model Content

[0005] Therefore, this utility model provides a headphone antenna structure to overcome the problems of poor flexibility and low space utilization when combining antennas with headphones in the prior art.

[0006] To achieve the above objectives, this utility model provides an earphone antenna structure, comprising:

[0007] The antenna body is composed of several laser-engraved antennas, each laser-engraved antenna including a connecting part and a contact point, the connecting part and the contact point being connected together;

[0008] The support component is a semi-circular arc structure, divided into a first support component and a second support component. The outer surface of the support component is provided with a surface groove for fitting the antenna body.

[0009] Several laser-engraved antennas are embedded in the outer surface of the support component, and several contact points are used to realize circuit connection and antenna communication functions;

[0010] The first support component has an extension assembly connected to its end, and the second support component has a contact assembly connected to its end.

[0011] Furthermore, the connecting part is square-shaped and fits the outer surface of the supporting component, the extension component and the contact component, and the contact point is circular.

[0012] Furthermore, the support component has an arc-shaped groove arranged parallel to it in the middle, and the arc-shaped groove passes through the support component.

[0013] Furthermore, the extension component is a hollow ring structure that is fixedly connected to the first support component, and the other end corresponding to the connection with the first support component is provided with an arc-shaped notch.

[0014] Furthermore, the extension component is provided with a protrusion and several snap-fit ​​slots, the protrusion and several snap-fit ​​slots are used to snap-fit ​​the circuit board, the protrusion is composed of several contact posts, and the several contact posts are respectively attached to several contact points of the antenna body.

[0015] Furthermore, several contact points of the antenna body are attached to the top of the contact post and connected to the circuit board through the protrusion.

[0016] Furthermore, the contact component is fixedly connected to the second support component, and connecting posts are provided on both sides.

[0017] Furthermore, the extension length of the second support member is greater than the extension length of the first support member.

[0018] Furthermore, the protrusion is located on the connection side between the annular structure of the extension component and the first support component, and is vertically disposed on the outside of the extension component.

[0019] Furthermore, several of the snap-fit ​​grooves are located on the arc-shaped notch side of the annular structure of the extension component, and are disposed on the inner side of the extension component.

[0020] Compared with existing technologies, the advantages of this invention lie in its extreme utilization of three-dimensional space. The antenna can be directly fabricated on the inner wall of the earphone shell, internal support structure, or battery cover, realizing the concept of "antenna as structure" and greatly saving internal space. Integration and reliability are also enhanced. The antenna and plastic carrier are integrally molded, resulting in strong bonding and avoiding fault points such as loose connectors and poor contact of spring contacts, leading to higher mechanical reliability and electrical stability. Furthermore, the design flexibility is high; complex three-dimensional routing can be easily achieved for the antenna pattern to optimize antenna performance (such as adjusting the resonant frequency and bandwidth).

[0021] Furthermore, this device enhances the signal reception performance of the headphones. The laser-engraved antenna boasts high precision and performance, significantly improving the headphones' wireless signal reception capabilities. It also improves the bending resistance and stability of the laser-engraved antenna through optimized structural design, tightly integrating the antenna with the headphone shell to maintain a compact structure and reduce space occupation. Finally, it enhances aesthetics; the laser-engraved antenna can be customized in shape and pattern according to design requirements, increasing the headphones' visual appeal.

[0022] Furthermore, the application of laser-engraved antennas to clip-on Bluetooth headphones involves repeated bending, and their bending resistance and whether bending resistance will affect signal transmission and stability are issues that need to be overcome. In this invention, the support component of the headphone antenna is divided into a first support component and a second support component with different curvatures. The curvature of the first support component is greater than that of the second support component, which increases the adaptability of users to repeatedly removing and wearing the headphones when the headphone structures on both sides of the clip-on headphones are of different sizes, and avoids the bending force on one side of the antenna being greater than that on the other side.

[0023] Furthermore, when a user bends a Bluetooth headset, the support component of the headset antenna is the main structure that bears the bending force. The antenna body on the support component experiences the greatest bending deformation, and the greater the curvature of the support component, the greater the degree of bending deformation of the antenna body. The greater the degree of deformation, the stronger the bending resistance required. Therefore, based on the above characteristics of the support component structure, this utility model increases the bending resistance of the headset antenna by setting an arc-shaped groove parallel to it in the middle of the support component, avoiding repeated bending of the headset antenna and thus affecting the stability of signal transmission. This further increases the precision and practicality of laser engraving the headset antenna. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the headphone antenna in an embodiment of this utility model;

[0025] Figure 2 This is a front view schematic diagram of the headphone antenna in an embodiment of this utility model;

[0026] Figure 3 This is a side view of the headphone antenna in an embodiment of the present invention.

[0027] Figure 4 This is a top view of the headphone antenna in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the antenna body in an embodiment of the present invention;

[0029] Figure 6 This is a partially enlarged schematic diagram of the extension component in an embodiment of this utility model;

[0030] Figure 7 This is a partially enlarged schematic diagram of the contact component in an embodiment of this utility model;

[0031] In the figure: 1-antenna body, 11-connection part, 12-contact point, 21-first support component, 22-second support component, 3-extension assembly, 4-contact foot, 5-arc groove, 6-arc notch, 31-contact post, 32-slot, 41-connecting post. Detailed Implementation

[0032] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0033] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0034] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Please see Figures 1-7 As shown, Figure 1 This is a schematic diagram of the main structure of the headphone antenna in an embodiment of this utility model; Figure 2 This is a front view schematic diagram of the headphone antenna in an embodiment of this utility model; Figure 3 This is a side view of the headphone antenna in an embodiment of the present invention. Figure 4 This is a top view of the headphone antenna in an embodiment of the present invention; Figure 5 This is a schematic diagram of the antenna body in an embodiment of the present invention; Figure 6 This is a partially enlarged schematic diagram of the extension component in an embodiment of this utility model; Figure 7 This is a partially enlarged schematic diagram of the contact component in an embodiment of this utility model.

[0037] This utility model provides a headphone antenna structure, including:

[0038] The antenna body is composed of several laser-engraved antennas, which are U-shaped structures including connecting parts and contact points;

[0039] The connecting part is square-shaped and fits the outer surface of the supporting component, the extension component, and the contact component. The contact point is circular.

[0040] The antenna body is embedded in the outer surface of the support component, and the contact points are used to realize circuit connection and antenna communication functions.

[0041] In this embodiment, the antenna body of the headphone antenna has a wire width of 0.35mm and a wire thickness of 0.06-0.08mm. The antenna body has 5 wires, which are used to connect the circuit and realize the antenna function.

[0042] The biggest advantage over traditional technologies lies in the ultimate utilization of three-dimensional space. The antenna can be directly fabricated on the inner wall of the earphone shell, internal support structure, or battery cover, realizing the concept of "antenna as structure" and greatly saving internal space.

[0043] The design is highly flexible, the antenna pattern is determined by the laser path controlled by software, the design iteration speed is fast, and complex three-dimensional traces can be easily realized to optimize antenna performance (such as adjusting the resonant frequency and bandwidth).

[0044] High precision and consistency: Laser processing achieves extremely high precision (line width / line spacing up to 0.1mm) and is computer-controlled, avoiding human assembly errors and ensuring high consistency and reliability of product performance.

[0045] Integration and reliability: The antenna and plastic carrier are molded as a single unit, resulting in a strong bond and avoiding fault points such as loose connectors and poor contact of spring contacts, thus improving mechanical reliability and electrical stability.

[0046] In this embodiment, the antenna body of the headphone antenna uses a copper base + nickel plating material, and the substrate material is polycarbonate (PC).

[0047] The support component has a surface groove on its outer surface for accommodating the antenna body. The support component is divided into a first support component and a second support component.

[0048] The support component has an arc-shaped structure, approximately semi-circular, and a contact component and an extension component are respectively connected to both ends of the support component;

[0049] The support component has an arc-shaped groove arranged parallel to it in the middle, and the arc-shaped groove passes through the support component;

[0050] The antenna body is disposed on the support component, extension component and contact foot, and is connected to the support component, extension component and contact foot through a groove engraved by laser.

[0051] The extension component is a hollow ring structure fixedly connected to one end of the support component and connected to the first support component, and the other end corresponding to the connection with the support component is provided with an arc-shaped notch.

[0052] The extension component has a protrusion and a snap-fit ​​groove for snapping a circuit board. The protrusion is composed of a plurality of contact posts, and the plurality of contact posts respectively abut against a plurality of contact points of the antenna body.

[0053] The protrusion is located on the connection side between the annular structure of the extension component and the first support component, and is vertically disposed on the outside of the extension component.

[0054] Several of the aforementioned snap-fit ​​slots are located on the arc-shaped notch side of the annular structure of the extension component, and are disposed on the inner side of the extension component.

[0055] Specifically, several contact points of the antenna body are attached to the top of the contact post, and the antenna function is realized by connecting and conducting with the circuit board through the protrusion.

[0056] The contact component is fixedly connected to the other end of the support component and connected to the second support component. The contact component has connecting posts on both sides for connecting the small ball shell of the ear clip earphone.

[0057] The extension length of the second support component is greater than that of the first support component, and the connection between the first support component and the extension assembly is also used to connect the large spherical shell of the clip-on earphone.

[0058] In this embodiment, the antenna structure is an antenna structure for clip-on headphones. The antenna body and the support component are assembled by laser engraving and surface activation followed by chemical plating on the support component.

[0059] The headphone antenna includes an antenna body, a support component, an extension component, and a contact foot. The antenna body is disposed on the support component, the extension component, and the contact foot, and is connected to the support component, the extension component, and the contact foot through a groove engraved by laser.

[0060] Specifically, this device improves the signal reception performance of headphones. The laser-engraved antenna boasts high precision and performance, significantly enhancing the headphones' wireless signal reception capabilities. It also improves the bending resistance and stability of the laser-engraved antenna through optimized structural design, tightly integrating the antenna with the headphone shell to maintain a compact structure and reduce space occupation. Furthermore, it enhances aesthetics; the laser-engraved antenna can be customized in shape and pattern to meet design requirements, increasing the headphones' visual appeal.

[0061] Specifically, LAP technology does not require modification of ordinary plastics suitable for various types and colors; it only requires activation via laser engraving and then passing through Cenmark Actil. TM After activation treatment with the reagent, a high-precision interconnection structure and three-dimensional circuit can be formed by electroplating. This utility model uses LAP laser engraving technology to process the headphone antenna, achieving high-precision surface metallization of the structure and forming a high-precision interconnection structure. The laser-engraved antenna has high precision and high performance, which can significantly improve the wireless signal reception capability of the headphone.

[0062] In this embodiment, the curvature of the first support component is greater than that of the second support component, and the curvature of the two sides of the support component is less than that of the central arc-shaped groove.

[0063] Specifically, the application of laser-engraved antennas in clip-on Bluetooth earphones involves repeated bending, and their bending resistance and whether bending resistance will affect signal transmission and stability are problems that need to be overcome. In this invention, the support component of the earphone antenna is divided into a first support component and a second support component with different curvatures. The curvature of the first support component is greater than that of the second support component, which increases the adaptability of users to repeatedly removing and wearing the earphones when the earphone structures on both sides of the clip-on earphone are different in size, and avoids the bending force on one side of the antenna being greater than that on the other side.

[0064] Specifically, when a user bends a Bluetooth headset, the antenna support component is the main structure that bears the bending force. The antenna body on the support component experiences the greatest bending deformation, and the greater the curvature of the support component, the greater the degree of bending deformation of the antenna body. The greater the degree of deformation, the stronger the bending resistance required. Therefore, based on the above characteristics of the support component structure, this utility model increases the bending resistance of the headset antenna by setting an arc-shaped groove parallel to it in the middle of the support component. This avoids the headset antenna being repeatedly bent, thus affecting the stability of signal transmission, and further increases the precision and practicality of laser engraving the headset antenna.

[0065] Working principle:

[0066] The supporting component is laser-engraved and surface-activated before being chemically plated, thereby assembling the antenna body with the supporting component. The laser-engraved antenna is connected to the supporting component, extension assembly, and contact feet through a groove laser-engraved in the groove. The extension assembly is connected to the circuit board through a protrusion and a snap-fit ​​groove. Several contact points of the antenna body are attached to the top of the contact post. The antenna body is connected to the circuit board through several contact points to achieve circuit connection and antenna communication functions.

[0067] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

[0068] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A headphone antenna structure, characterized in that, include: The antenna body is composed of several laser-engraved antennas, each laser-engraved antenna including a connecting part and a contact point, the connecting part and the contact point being connected together; The support component is a semi-circular arc structure, divided into a first support component and a second support component. The outer surface of the support component is provided with a surface groove for fitting the antenna body. Several laser-engraved antennas are embedded in the outer surface of the support component, and several contact points are used to realize circuit connection and antenna communication functions; The first support component has an extension assembly connected to its end, and the second support component has a contact assembly connected to its end.

2. The headphone antenna structure according to claim 1, characterized in that, The connecting part is square and fits the outer surface of the supporting component, the extension component and the contact component, and the contact point is circular.

3. The headphone antenna structure according to claim 2, characterized in that, The support component has an arc-shaped groove arranged parallel to it in the middle, and the arc-shaped groove passes through the support component.

4. The headphone antenna structure according to claim 1, characterized in that, The extension component is a hollow ring structure that is fixedly connected to the first support component, and the other end corresponding to the connection with the first support component is provided with an arc-shaped notch.

5. The headphone antenna structure according to claim 4, characterized in that, The extension component has a protrusion and several snap-fit ​​slots, which are used to snap-fit ​​a circuit board. The protrusion is composed of several contact posts, which are respectively attached to several contact points of the antenna body.

6. The headphone antenna structure according to claim 5, characterized in that, Several contact points of the antenna body are attached to the top of the contact post and are connected to the circuit board through the protrusion.

7. The headphone antenna structure according to claim 1, characterized in that, The contact component is fixedly connected to the second support component, and connecting posts are provided on both sides.

8. The headphone antenna structure according to claim 1, characterized in that, The extension length of the second support member is greater than the extension length of the first support member.

9. The headphone antenna structure according to claim 5, characterized in that, The protrusion is located on the connection side between the annular structure of the extension component and the first support component, and is vertically disposed on the outside of the extension component. Several of the aforementioned snap-fit ​​slots are located on the arc-shaped notch side of the annular structure of the extension component, and are disposed on the inner side of the extension component.

10. The headphone antenna structure according to claim 1, characterized in that, The curvature of the first support component is greater than that of the second support component, and the curvature of the two sides of the support component is less than that of the central arc-shaped groove.

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