An ear-holding type Bluetooth earphone antenna connecting structure

Abstract

The utility model relates to earphone technical field especially relates to a kind of clip ear formula bluetooth earphone antenna connection structure, comprising:C-shaped bridge, to be clamped in auricle upper part;Laser-engraved antenna, it is set on the upper surface of the C-shaped bridge, to connect the electrical element in the earphone of being arranged in the both ends of C-shaped bridge and be received for the earphone transmission signal;Conductive spring piece, it is set on earphone internal circuit element and with the contact connection of two terminal contact of the laser-engraved antenna, to pass through the laser-engraved antenna and earphone internal circuit element;Three-layer structure's elastic connecting plate is further provided in earphone, and wire is arranged to connect the conductive spring piece, loudspeaker and microphone;The utility model passes through the reasonable design to antenna connection structure, solved the problem that laser-engraved antenna produces electromagnetic interference to loudspeaker and leads to audio signal distortion, simultaneously, antenna circuit adopts conductive spring piece contact type connection, avoids the electromagnetic interference and contact bad caused by welding mode.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to an antenna connection structure for clip-on Bluetooth headphones. Background Technology

[0002] Bluetooth headsets are primarily used to connect to mobile devices such as smartphones and computers via Bluetooth radio frequency, then transmit audio information to the headset, where it is decoded and output. In this process, the Bluetooth antenna acts as a "tower" to communicate between the two parties, performing the tasks of sending and receiving.

[0003] Traditional clip-on headphones typically use printed circuit board (PCB) antennas or metal wire antennas, which have limitations in signal reception performance, structural compactness, and aesthetics. With the continuous development of wireless communication technology, the requirements for antenna performance are increasing. Laser-etched antennas (LDS) are gradually becoming a new trend in antenna manufacturing due to their high precision, high performance, and good design flexibility. Their principle is similar to PCB antennas, but laser-etched antennas project a laser onto a plastic shell according to the antenna's shape, depositing a metallic antenna within seconds. Their advantages include "arbitrary placement," meeting today's "small and lightweight" requirements, and the ability to be directly mounted on the back of the shell, increasing the antenna's clearance area and improving its efficiency.

[0004] Chinese Patent Publication No. CN209880797U discloses an LDS antenna and a Bluetooth headset with the antenna. The LDS antenna includes a housing with a semi-circular first conductor line formed on one side and a second conductor line formed on the other side. A first through-hole is provided on the second conductor line, penetrating the housing and located near the first conductor line. The first conductor line and the second conductor line are electrically connected through the first through-hole and the nearby conductor line. The Bluetooth headset includes the aforementioned LDS antenna, as well as a headset cover, a headset housing, a circuit board, and earplugs. This novel Bluetooth headset avoids the use of a built-in antenna, saving space, reducing costs, and enhancing Bluetooth signal reception.

[0005] Therefore, it can be seen that the LDS antenna and the Bluetooth headset with the antenna mentioned above are located near the sound-generating component, which can easily cause electromagnetic interference to the speaker and lead to audio signal distortion. At the same time, the antenna circuit is connected by soldering, which poses a risk of electromagnetic interference and poor contact. Utility Model Content

[0006] Therefore, this utility model provides an ear-clamp Bluetooth headset antenna connection structure to overcome the problems in the prior art.

[0007] To achieve the above objectives, this utility model provides an ear-clamp Bluetooth headset antenna connection structure, comprising:

[0008] The C-shaped bridge is used to hold the upper part of the auricle;

[0009] A laser-engraved antenna is disposed on the upper surface of the C-shaped bridge to connect electrical components disposed at both ends of the C-shaped bridge and to receive transmitted signals for the earphones.

[0010] A conductive spring is disposed on the internal circuit components of the earphone and is connected to the two end contacts of the laser-engraved antenna to conduct electricity between the laser-engraved antenna and the internal circuit components of the earphone.

[0011] Furthermore, the laser-engraved antenna includes several laser-engraved lines fixedly connected to the upper part of the outer surface of the C-shaped bridge. The laser-engraved lines are 0.35 mm wide and 0.06–0.08 mm thick, and the upper surface of each laser-engraved line is flush with the surface of the C-shaped bridge.

[0012] Furthermore, one end of the laser-engraved antenna is connected to a sound-generating component disposed at one end of the C-shaped bridge;

[0013] The sound-generating component includes a small spherical shell, a connecting plate disposed within the small spherical shell, and a speaker and microphone connected to the connecting plate.

[0014] Furthermore, the connecting plate is an elastic plate with a three-layer bow-shaped structure formed by bending twice, including a first connecting plate layer for connecting with the microphone, a second connecting plate layer for connecting with the speaker, and a third connecting plate layer with the conductive spring piece disposed at the corresponding position on the upper surface of the laser-engraved antenna end contact; the connecting plate is provided with wires connecting the conductive spring piece, the speaker and the microphone, so as to make the speaker and the microphone conductive with the end contact of the laser-engraved antenna.

[0015] Furthermore, the other end of the laser-engraved antenna is connected to a clip assembly disposed at one end of the C-shaped bridge;

[0016] The clip assembly includes a large spherical shell and a main board and a battery disposed within the large spherical shell, the main board and the battery being electrically connected.

[0017] Furthermore, the motherboard is provided with conductive spring contacts to enable the motherboard and the laser-engraved antenna to conduct electricity;

[0018] The conductive spring has a single-contact tongue-shaped structure.

[0019] Furthermore, the C-shaped bridge includes a small ball fastening portion located on one side of the sound-generating component for fastening and connecting with the small ball housing, an umbrella-shaped portion for arranging the end contacts of the laser-engraved antenna, a large ball fastening portion located on one side of the clip assembly for fastening and connecting with the large ball housing, a mounting partition for mounting the motherboard and the battery, and a boss portion disposed on the mounting partition on the side away from the sound-generating component for arranging the end contacts of the laser-engraved antenna; wherein, the umbrella-shaped portion is fixedly connected to the third layer of the connecting plate to maintain the relative distance between the end contacts of the laser-engraved antenna and the conductive spring sheet on the first layer of the connecting plate.

[0020] Furthermore, the end contacts of the laser-engraved antenna include rectangular sound-emitting side contacts evenly distributed on the lower bottom surface of the umbrella-shaped portion and circular motherboard side contacts evenly distributed on the boss portion.

[0021] Furthermore, the laser-engraved surface of the C-shaped bridge has a gap of 0.5mm to 0.8mm between it and the small spherical shell and the large spherical shell, in order to protect the laser-engraved line from being damaged by the small spherical shell and the large spherical shell.

[0022] Furthermore, a rounded corner with a radius of 0.2 mm to 0.6 mm is provided between the umbrella-shaped arc surface and the bottom surface of the umbrella-shaped portion.

[0023] Compared with the prior art, the beneficial effect of this utility model is that by setting the signal transceiver part of the laser-engraved antenna on the outer surface of the C-shaped bridge, a good clearance area is obtained while isolating the laser-engraved antenna from the speaker and microphone, thus eliminating electromagnetic interference.

[0024] Furthermore, by setting up the connecting plate, the end of the laser-engraved antenna is not directly connected to the speaker and microphone, thus eliminating electromagnetic interference.

[0025] Furthermore, the C-shaped bridge provides a platform for arranging the end feed points of the laser-engraved antenna by setting protrusions and umbrella-shaped sections on both sides, which can be adapted to the circuit design of various laser-engraved antennas.

[0026] Furthermore, the conductive spring contacts connect the laser-engraved antenna and the motherboard, reducing electromagnetic wave leakage caused by soldering connections, while adapting to vibration environments and ensuring stable circuit conduction.

[0027] Furthermore, a gap is reserved between the C-shaped bridge and the earphone shell to prevent the laser-engraved antenna from being damaged by deformation of the earphone shell during use.

[0028] Furthermore, the umbrella-shaped portion is provided with transition rounded corners, which allows the laser-engraved lines to smoothly change direction and make contact with the connecting plate for conduction. Attached Figure Description

[0029] Figure 1 This is a perspective view of the antenna connection structure of the clip-on Bluetooth headset according to an embodiment of the present invention;

[0030] Figure 2 This is a cross-sectional view of the antenna connection structure of the clip-on Bluetooth headset according to an embodiment of the present invention;

[0031] Figure 3 This is a perspective view of the large spherical side of the C-shaped bridge in the antenna connection structure of the clip-on Bluetooth headset according to an embodiment of the present invention.

[0032] Figure 4 This is a perspective view of the small ball side of the C-shaped bridge of the antenna connection structure of the clip-on Bluetooth headset according to an embodiment of the present invention;

[0033] Figure 5 This is a bottom view of the C-shaped bridge of the ear-clamp Bluetooth headset antenna connection structure according to an embodiment of the present invention;

[0034] Figure 6 This is a perspective view of the conductive spring sheet of the antenna connection structure of the clip-on Bluetooth headset according to an embodiment of the present invention;

[0035] In the diagram: 1-C-shaped bridge; 11-Small ball fastening part; 12-Large ball fastening part; 13-Umbrella-shaped part; 14-Separator plate; 15-Protrusion part; 2-Sound-generating component; 21-Small ball shell; 22-Speaker; 23-Microphone; 241-First layer of connecting plate; 242-Second layer of connecting plate; 243-Third layer of connecting plate; 3-Clamping ear assembly; 31-Large ball shell; 32-Main board; 33-Battery; 4-Laser-engraved antenna; 41-Main board side contact; 42-Sound-generating side contact; 5-Conductive spring. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] This utility model embodiment provides an antenna connection structure for a clip-on Bluetooth headset. Please refer to [link / reference]. Figure 1 The diagram shown is a perspective view of the antenna connection structure of a clip-on Bluetooth headset according to an embodiment of the present invention, including:

[0041] C-shaped bridge 1 is used to clamp the upper part of the ear and connect the sound-generating component 2 and the ear-clamping component 3; laser-engraved antenna 4 is disposed on the upper surface of the C-shaped bridge 1 and is used to connect the electrical components disposed at both ends of the C-shaped bridge 1 and the ear-clamping component 3, and to receive transmitted signals for the earphone.

[0042] For details, please continue to see Figure 2 As shown, it is a cross-sectional view of the antenna connection structure of the clip-on Bluetooth headset according to an embodiment of the present invention. The C-shaped bridge 1 is fixedly connected to the small ball shell 21 through the small ball fastening part 11, and the connecting plate, speaker 22 and microphone 23 are disposed in the small ball shell 21.

[0043] Specifically, in the connecting plate, the upper surface of the third layer 243 of the connecting plate is provided with a conductive spring piece 5, which is fixedly connected to the umbrella-shaped part 13 at the end of the C-shaped bridge 1. The laser-engraved antenna 4 passes through the arc surface of the umbrella-shaped part 13 and turns to the lower surface of the umbrella-shaped part 13, and contacts and conducts with the conductive spring piece 5. The lower surface of the second layer 242 of the connecting plate is fixedly connected to the speaker 22, and the first layer 241 of the connecting plate is fixedly connected to the microphone 23. The connecting plate is provided with wires to conduct the connection between the speaker 22, the microphone 23, the conductive spring piece 5 and the laser-engraved antenna 4.

[0044] Specifically, the umbrella-shaped portion 13 has a rounded corner with a radius of 0.2 mm to 0.6 mm between its umbrella-shaped arc surface and its bottom surface.

[0045] Preferably, the fillet radius is 0.4 mm.

[0046] Specifically, there is a gap of 0.5mm to 0.8mm between the umbrella-shaped portion 13 and the spherical outer shell 21 to protect the laser-engraved antenna 4 from being damaged by the spherical shell.

[0047] Preferably, the gap is 0.5 mm.

[0048] Specifically, the C-shaped bridge 1 is fixedly connected to the large ball shell 31 through the large ball fastening part 12, and the motherboard 32 and the battery 33 are electrically connected and disposed in the large ball shell 31.

[0049] Specifically, the partition plate 14 at the end of the C-shaped bridge 1 divides the portion inside the large spherical shell 31 into two cavities. The main board 32 is equipped with a conductive spring 5 and is located on the side of the partition plate 14 away from the sound-generating component 2. The battery 33 is located on the side of the partition plate 14 near the sound-generating component 2.

[0050] Specifically, the laser-engraved antenna 4 is connected to the conductive spring piece 5 on the motherboard 32 via the protrusion portion 15 on the partition plate 14, so as to connect the battery 33, the motherboard 32 and the laser-engraved antenna 4.

[0051] For details, please continue to see Figure 3 As shown, it is a perspective view of the C-shaped bridge ball side of the antenna connection structure of the clip-on Bluetooth headset according to an embodiment of the present invention. The lines of the laser-engraved antenna 4 extend to the boss portion 15, and the ends are circular motherboard side contacts 41, which are evenly distributed on the boss portion 15.

[0052] For details, please continue to see Figure 4 and Figure 5 As shown, these are, respectively, a perspective view of the small ball side of the C-shaped bridge of the ear-clamp Bluetooth headset antenna connection structure of this utility model embodiment and a bottom view of the C-shaped bridge of the ear-clamp Bluetooth headset antenna connection structure of this utility model embodiment; the lines of the laser-engraved antenna 4 extend to the arc surface of the umbrella-shaped part 13 and turn to the lower surface of the umbrella-shaped part 13 through rounded corners, and the ends are rectangular sound-emitting side contacts 42, which are evenly distributed on the lower surface of the umbrella-shaped part 13.

[0053] Specifically, the laser-engraved antenna 4 includes several laser-engraved lines 4 fixedly connected to the upper part of the outer surface of the C-shaped bridge 1. The laser-engraved lines 4 have a width of 0.35 mm and a thickness of 0.06 to 0.08 mm, and the upper surface of each laser-engraved line 4 is flush with the surface of the C-shaped bridge 1.

[0054] Preferably, the laser-engraved antenna 4 includes 6 laser-engraved lines with a thickness of 0.06 mm.

[0055] For details, please continue to see Figure 6 The figure shown is a perspective view of the conductive spring 5 of the antenna connection structure of the clip-on Bluetooth headset according to an embodiment of the present invention. The conductive spring 5 is a single-contact tongue-shaped structure, which can maintain circuit continuity under vibration.

[0056] Those skilled in the art will understand that the conductive spring 5 is a preferred embodiment of the present invention. Based on the premise that it satisfies the requirement of maintaining circuit continuity under vibration environment, those skilled in the art can make adaptive substitutions to the structure, size and material of the conductive spring 5 according to the actual situation.

[0057] In implementation, the signal transceiver section of the laser-etched antenna 4 of the earphone is located on the outer surface of the C-shaped bridge 1. This provides a good clearance area while isolating the laser-etched antenna 4 from the speaker 22 and microphone 23, eliminating electromagnetic interference. Furthermore, by setting the connecting plate, the end of the laser-etched antenna 4 is not directly connected to the speaker 22 and microphone 23, further eliminating electromagnetic interference. Simultaneously, the C-shaped bridge 1 provides a platform for arranging the feed points at the ends of the laser-etched antenna 4 through the protrusion portion 15 and the umbrella-shaped portion 13, adapting to various circuit designs of the laser-etched antenna 4. The conductive spring 5 contacts and connects the laser-etched antenna 4 to the main board 32, reducing electromagnetic wave leakage caused by soldering connections and adapting to vibration environments to ensure stable circuit conduction. Furthermore, the reasonable structural design of the C-shaped bridge 1 and its end umbrella-shaped portion 13 and protrusion portion 15 ensures the stability of the laser-etched antenna 4 during signal transmission.

[0058] 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.

Claims

1. An antenna connection structure for a clip-on Bluetooth headset, characterized in that, include: The C-shaped bridge is used to hold the upper part of the auricle; A laser-engraved antenna is disposed on the upper surface of the C-shaped bridge to connect electrical components disposed at both ends of the C-shaped bridge and to receive transmitted signals for the earphones. A conductive spring is disposed on the internal circuit components of the earphone and is connected to the two end contacts of the laser-engraved antenna to conduct electricity between the laser-engraved antenna and the internal circuit components of the earphone.

2. The ear-clamp Bluetooth headset antenna connection structure according to claim 1, characterized in that, The laser-engraved antenna includes several laser-engraved lines fixedly connected to the upper part of the outer surface of the C-shaped bridge. The laser-engraved lines are 0.35 mm wide and 0.06–0.08 mm thick, and the upper surface of each laser-engraved line is flush with the surface of the C-shaped bridge.

3. The ear-clamp Bluetooth headset antenna connection structure according to claim 2, characterized in that, One end of the laser-engraved antenna is connected to a sound-generating component located at one end of the C-shaped bridge; The sound-generating component includes a small spherical shell, a connecting plate disposed within the small spherical shell, and a speaker and microphone connected to the connecting plate.

4. The ear-clamp Bluetooth headset antenna connection structure according to claim 3, characterized in that, The connecting plate is an elastic plate with a three-layer, bow-shaped structure formed by bending twice. It includes a first connecting plate layer for connecting to the microphone, a second connecting plate layer for connecting to the speaker, and a third connecting plate layer with conductive spring pieces disposed on the upper surface at positions corresponding to the end contacts of the laser-engraved antenna. The connecting plate is provided with wires connecting the conductive spring pieces, the speaker, and the microphone to enable the speaker and microphone to conduct electricity with the end contacts of the laser-engraved antenna.

5. The ear-clamp Bluetooth headset antenna connection structure according to claim 4, characterized in that, The other end of the laser-engraved antenna is connected to a clip assembly located at one end of the C-shaped bridge. The clip assembly includes a large spherical shell and a main board and a battery disposed within the large spherical shell, the main board and the battery being electrically connected.

6. The ear-clamp Bluetooth headset antenna connection structure according to claim 5, characterized in that, The motherboard is equipped with conductive springs to enable the motherboard and the laser-engraved antenna to conduct electricity. The conductive spring has a single-contact tongue-shaped structure.

7. The ear-clamp Bluetooth headset antenna connection structure according to claim 6, characterized in that, The C-shaped bridge includes a small ball fastening portion located on one side of the sound-generating component for fastening and connecting with the small ball housing, an umbrella-shaped portion for arranging the end contacts of the laser-engraved antenna, a large ball fastening portion located on one side of the clip assembly for fastening and connecting with the large ball housing, a mounting partition for mounting the motherboard and the battery, and a boss portion disposed on the mounting partition on the side away from the sound-generating component for arranging the end contacts of the laser-engraved antenna; wherein, the umbrella-shaped portion is fixedly connected to the third layer of the connecting plate to maintain the relative distance between the end contacts of the laser-engraved antenna and the conductive spring sheet on the first layer of the connecting plate.

8. The ear-clamp Bluetooth headset antenna connection structure according to claim 7, characterized in that, The laser-engraved antenna has end contacts including rectangular sound-emitting side contacts evenly distributed on the bottom surface of the umbrella-shaped portion and circular motherboard side contacts evenly distributed on the boss portion.

9. The ear-clamp Bluetooth headset antenna connection structure according to claim 7, characterized in that, The C-shaped bridge has a laser-engraved surface with a gap of 0.5mm to 0.8mm between the laser-engraved line and the small and large spherical shells, which is used to protect the laser-engraved line from being damaged by the small and large spherical shells.

10. The ear-clamp Bluetooth headset antenna connection structure according to claim 8, characterized in that, The umbrella-shaped part has a rounded transition with a radius of 0.2mm to 0.6mm between the umbrella-shaped arc surface and the bottom surface.

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