Bluetooth earphone

Abstract

The Bluetooth earphone comprises an earphone head, an earphone rod and a functional assembly, the earphone head comprises a shell and a sound production assembly, and the sound production assembly is arranged in the shell; the earphone rod is connected with the shell and is provided with a mounting cavity; the functional assembly comprises a main board, a switching assembly and an antenna assembly, the main board is arranged in the mounting cavity, the switching assembly is arranged on the main board, the main board is electrically connected with the sound production assembly through the switching assembly, the antenna assembly is located on the side, away from the main board, of the switching assembly, the antenna assembly is electrically connected with the main board and the switching assembly, and the antenna assembly extends in a bent shape. According to the embodiment of the invention, through the reasonable design of the antenna assembly, the occupied space of the antenna assembly can be reduced, and the switching assembly can be used as a part of the antenna assembly to form a complete current signal flow path in the antenna assembly, so that the radiation efficiency of the antenna assembly is improved.

Description

Technical Field

[0001] This application relates to the field of Bluetooth headset technology, and more particularly to a Bluetooth headset. Background Technology

[0002] With the widespread application of mobile communication, TWS (True Wireless Stereo) earphones have quickly become mainstream products in the current earphone market due to their attractive appearance, portability, and excellent user experience, gaining increasing favor among consumers. However, as Bluetooth earphones increasingly trend towards ultra-lightweight and miniaturized designs, the available design space within them is gradually decreasing. In related technologies, the antennas in Bluetooth earphones occupy a large space and have stringent placement requirements, which limits the trend towards smaller and more portable product designs. Utility Model Content

[0003] This application provides a Bluetooth headset that, through reasonable design of the antenna assembly, can reduce the space occupied by the antenna assembly and improve the radiation efficiency of the antenna assembly.

[0004] This application provides a Bluetooth headset, including:

[0005] An earphone head includes a housing and a sound-generating component, the sound-generating component being disposed within the housing;

[0006] An earphone stem, connected to the housing, the earphone stem having a mounting cavity;

[0007] The functional components include a motherboard, an adapter assembly, and an antenna assembly. The motherboard is disposed in the mounting cavity, the adapter assembly is disposed on the motherboard, and the motherboard is electrically connected to the sound-emitting assembly through the adapter assembly. The antenna assembly is located on the side of the adapter assembly opposite to the motherboard, and the antenna assembly is electrically connected to both the motherboard and the adapter assembly. The antenna assembly extends in a bent shape.

[0008] In some embodiments of this application, the antenna assembly includes a feed terminal, a first branch line, and a ground terminal connected in sequence. The feed terminal is electrically connected to the main board, and the ground terminal is electrically connected to the adapter assembly. The first branch line extends in a bent shape.

[0009] In some embodiments of this application, the antenna assembly further includes:

[0010] A first connecting line, one end of which is connected to the side of the power supply terminal away from the first branch line, and the other end of which is connected to the first end of the first branch line.

[0011] The second connecting line has one end connected to the side of the grounding terminal away from the first branch line, and the other end connected to the second end of the first branch line.

[0012] In some embodiments of this application, the orthographic projection shape of the power supply terminal on the motherboard is square; and / or, the orthographic projection shape of the ground supply terminal on the motherboard is square.

[0013] In some embodiments of this application, the adapter component includes a connector and a reinforcing part. The motherboard is electrically connected to the sound-generating component through the connector. The reinforcing part is disposed on the side of the connector away from the motherboard and is connected to the ground terminal.

[0014] In some embodiments of this application, the orthographic projection of the antenna assembly onto the motherboard does not exceed the outer contour of the motherboard.

[0015] In some embodiments of this application, the headphone rod has a first end and a second end disposed opposite to each other, the first end being connected to the housing, and the adapter assembly and the antenna assembly being disposed on the side of the main board near the first end;

[0016] When the Bluetooth headset is worn on the ear, the adapter component is located on the side of the motherboard away from the ear.

[0017] In some embodiments of this application, the distance between the side of the motherboard away from the adapter assembly and the inner wall of the mounting cavity is L1, where L1 satisfies 0mm≤L1≤1mm.

[0018] In some embodiments of this application, the functional component further includes:

[0019] The touch component is located within the mounting cavity and is electrically connected to the motherboard.

[0020] In some embodiments of this application, the touch component and the antenna component are both located on the same side of the motherboard, and the touch component and the antenna component are spaced apart.

[0021] Based on the Bluetooth headset in this embodiment, the antenna assembly is electrically connected to both the motherboard and the adapter assembly. The antenna assembly is mounted on the adapter assembly, fully utilizing the space above it and reducing the space occupied by the antenna assembly. This allows other mounting cavities in the headset stem to be used for other components, resulting in a compact internal component design and a smaller overall size. Furthermore, using the adapter assembly as the ground feed point for the antenna assembly allows it to function as part of the antenna assembly, forming a complete current signal path. In other words, the adapter assembly in this embodiment not only electrically connects the motherboard and the sound-generating component but also forms a complete current signal path for the antenna assembly, thereby improving its radiation efficiency and performance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a Bluetooth headset in one embodiment of this application;

[0024] Figure 2 This is an exploded view of a Bluetooth headset in one embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of a functional component in one embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of a Bluetooth headset in another embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the headphone rod in another embodiment of this application;

[0028] Figure 6 This is a graph showing the antenna radiation efficiency of a Bluetooth headset on a head model in the embodiments of this application and related technologies;

[0029] Figure 7 This is an antenna gain curve of the Bluetooth headset on the head model when Phi = 0° in the embodiments of this application and related technologies;

[0030] Figure 8 This is a graph showing the antenna gain of the Bluetooth headset on the head model when Phi = 90° in the embodiments of this application and related technologies;

[0031] Figure 9 This is a graph showing the antenna gain curve of the Bluetooth headset on the head model when Theta = 0° in the embodiments of this application and related technologies.

[0032] Figure label:

[0033] 1. Bluetooth headset;

[0034] 10. Earphone head; 11. Shell; 12. Sound-generating component; 13. Connecting cable;

[0035] 20. Earphone stem; 21. Mounting cavity; 22. First end; 23. Second end;

[0036] 30. Functional component; 31. Mainboard; 32. Adapter component; 321. Connector; 322. Reinforcing part; 33. Antenna component; 331. Power supply end; 332. First branch line; 333. Grounding end; 334. First connecting line; 335. Second connecting line; 34. Touch component; 35. Bluetooth chip; 36. Charging copper pillar; 37. Feedback microphone; 38. Call microphone. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, a clear and complete description will be provided below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0038] In related technologies, the antennas in Bluetooth headsets occupy a large space and have stringent layout requirements, which limits the trend towards smaller and more portable product designs. Meanwhile, the upper middle section of the headset stem needs to house the motherboard, circuit components, and sound-generating components. Therefore, the antenna in Bluetooth headsets is generally located in the lower middle section of the stem. However, this lower middle section is close to the ear, making it easy for the antenna's radiated energy to be absorbed by the ear, resulting in poor antenna radiation efficiency and performance.

[0039] For the above situation, please refer to Figures 1-3 This application proposes a Bluetooth headset 1, including an earphone head 10, an earphone stem 20, and a functional component 30. The earphone head 10 includes a housing 11 and a sound-emitting component 12. The sound-emitting component 12 is disposed inside the housing 11, and the earphone stem 20 is connected to the housing 11. When the Bluetooth headset 1 is worn on the user's ear, the earphone head 10 is located in the concha cavity of the ear, the sound-emitting component 12 faces the user's ear canal, and the earphone stem 20 extends along the intertragic notch of the ear and protrudes from the ear, thereby allowing the Bluetooth headset 1 to be worn on the user's ear.

[0040] like Figure 2 As shown, the headphone stem 20 has a mounting cavity 21; the functional component 30 includes a main board 31, an adapter component 32, and an antenna component 33. The main board 31 is disposed in the mounting cavity 21, the adapter component 32 is disposed on the main board 31, and the main board 31 is electrically connected to the sound-generating component 12 through the adapter component 32. The antenna component 33 is located on the side of the adapter component 32 away from the main board 31. The antenna component 33 is electrically connected to both the main board 31 and the adapter component 32, and the antenna component 33 extends in a bent shape.

[0041] Specifically, the motherboard 31 is electrically connected to the sound-generating component 12 through the adapter component 32, thereby reducing the number of soldering points between the motherboard 31 and the sound-generating component 12 and reducing the assembly difficulty.

[0042] It should be noted that in this embodiment, the antenna assembly 33 is electrically connected to the motherboard 31 and the adapter assembly 32. By placing the antenna assembly 33 on the adapter assembly 32, the space above the adapter assembly 32 is fully utilized, reducing the space occupied by the antenna assembly 33. This allows the space in the other mounting cavities 21 of the earphone stem 20 to be used for installing other components, resulting in a compact component design inside the earphone stem 20 and a reduced size of the Bluetooth earphone 1. Simultaneously, using the adapter assembly 32 as the ground feed point of the antenna assembly 33 allows the adapter assembly 32 to function as part of the antenna assembly 33, forming a complete current signal path within the antenna assembly 33. In other words, in this embodiment, the adapter assembly 32 not only enables the electrical connection between the motherboard 31 and the sound-emitting component 12 but also forms a complete current signal path for the antenna assembly 33, thereby improving the radiation efficiency and performance of the antenna assembly 33.

[0043] It should also be noted that the functional component 30 also includes components such as a Bluetooth chip 35, a charging copper pillar 36, a call microphone 38, and a feedback microphone 37. The Bluetooth chip 35 and the charging copper pillar 36 are electrically connected to the motherboard 31. The Bluetooth chip 35 can control the sound output of the sound-emitting component 12. The signals transmitted or received by the antenna component 33 can be processed by the Bluetooth chip 35 on the motherboard 31. The charging copper pillar 36 is used to charge the Bluetooth headset 1. The call microphone 38 and the feedback microphone 37 are respectively located at opposite ends of the headset stem 20. When the Bluetooth headset 1 is worn on the user's ear, the call microphone 38 is located on the side of the headset stem 20 closer to the ear, and the feedback microphone 37 is located on the side of the headset stem 20 further away from the ear. The sound-emitting component 12 includes a feedforward microphone, so that multiple microphones can work together to achieve the noise reduction function of the Bluetooth headset 1. In addition, the earphone head 10 also includes a mounting bracket disposed in the housing. The sound-generating component 12 is mounted inside the housing 11 via the mounting bracket. The side of the mounting bracket is also provided with a magnet. When the Bluetooth earphone 1 is placed in the charging case, the magnet can be attracted and fixed to the charging case so that the charging copper post 36 can contact the corresponding position in the charging case for charging.

[0044] In some embodiments, the orthographic projection of the antenna assembly 33 on the motherboard 31 does not exceed the outer contour of the motherboard 31, limiting the placement position of the antenna assembly 33. By designing the bending shape of the antenna assembly 33, the length and extension direction of the antenna assembly 33 can be controlled, thereby reducing the space occupied by the antenna assembly 33 and thus reducing the size of the Bluetooth headset 1.

[0045] In some embodiments of this application, the distance between the side of the motherboard 31 away from the adapter assembly 32 and the inner wall of the mounting cavity 21 is L1, where L1 satisfies 0mm≤L1≤1mm. A smaller distance can make the structure of the headphone stem 20 more compact, thereby reducing the size of the Bluetooth headset 1.

[0046] Please see Figures 2-3 In some embodiments of this application, the functional component 30 further includes a touch component 34, which is located in the mounting cavity 21 and is electrically connected to the motherboard 31.

[0047] Specifically, the touch component 34 includes a touch part and a connecting spring. The touch part is electrically connected to the motherboard 31 through the connecting spring. The touch part can be set close to the side wall of the headphone stem 20. Users can control the music playback, pause, volume adjustment and other functions of the Bluetooth headset 1 by touching the touch part on the headphone stem 20.

[0048] Furthermore, such as Figure 3As shown, the touch component 34 and the antenna component 33 are both located on the same side of the motherboard 31, and the touch component 34 and the antenna component 33 are spaced apart to reduce electromagnetic interference between the touch component 34 and the antenna component 33. Preferably, the distance between the touch component 34 and the antenna component 33 can be 1.5mm.

[0049] Please see Figures 3-4 In some embodiments of this application, the antenna assembly 33 includes a feed terminal 331, a first branch line 332, and a ground terminal 333 connected in sequence. The feed terminal 331 is electrically connected to the motherboard 31, and the ground terminal 333 is electrically connected to the adapter assembly 32. It is easy to understand that the antenna assembly 33 transmits signals to the motherboard 31 through the feed terminal 331, and the antenna assembly 33 is grounded to the adapter assembly 32 through the ground terminal 333.

[0050] The first branch line 332 extends in a bent shape, specifically, it follows a serpentine path. This allows for better control of the antenna assembly 33's length within a limited space. After each bend, the first branch line 332 is spaced apart from the preceding section, and all bends are right angles. For example, the first branch line 332 may be bent into four segments with three intervals between them, preferably 0.7 mm. This means that the first branch line 332 does not touch or overlap during its extension, reducing electromagnetic interference from the antenna assembly 33 and improving its radiation efficiency and performance.

[0051] In some embodiments, the power supply terminal 331 can be electrically connected to the motherboard 31 through a conductive spring, and the ground supply terminal 333 can contact the adapter component 32 through conductive foam. In order to ensure stable contact between the ground supply terminal 333 and the adapter component 32, the conductive foam is preferably square, and the projection of the conductive foam on the motherboard 31 is rectangular with a size of 2mm × 1mm.

[0052] Further, please see Figures 4-5In some embodiments of this application, the antenna assembly 33 further includes a first connecting line 334 and a second connecting line 335. One end of the first connecting line 334 is connected to the side of the feed terminal 331 away from the first branch line 332, that is, the connection point on the feed terminal 331 is located on the side of the feed terminal 331 away from the first branch line 332, thereby increasing the distance between the connection point on the feed terminal 331 and the first branch line 332. The other end of the first connecting line 334 is connected to the first end of the first branch line 332. Similarly, one end of the second connecting line 335 is connected to the side of the ground terminal 333 away from the first branch line 332, that is, the connection point on the ground terminal 333 is located on the side of the ground terminal 333 away from the first branch line 332, thereby increasing the distance between the connection point on the ground terminal 333 and the first branch line 332. The other end of the second connecting line 335 is connected to the second end of the first branch line 332.

[0053] The first connecting line 334 is generally L-shaped to separate the feed terminal 331, the first connecting line 334 and the first branch line 332. The second connecting line 335 is generally L-shaped to separate the ground terminal 333, the second connecting line 335 and the first branch line 332. This prevents the antenna assembly 33 from having any parts where the wires are in contact or overlapping, thereby improving the radiation efficiency and radiation performance of the antenna assembly 33.

[0054] Specifically, the line width of the first branch line 332, the line width of the first connecting part, and the line width of the second connecting part can be the same or different. Preferably, the line width of the first branch line 332, the line width of the first connecting part, and the line width of the second connecting part are all 0.5mm.

[0055] Please see Figures 4-5 In some embodiments of this application, the orthographic projection of the feed terminal 331 on the motherboard 31 is square. Compared with the first connecting line 334 and the first branch line 332, the feed terminal 331 has a larger width and can be cuboid in shape. This not only facilitates the arrangement of the antenna assembly 33, but also increases the volume of the feed terminal 331 and the contact area between the feed terminal 331 and the motherboard 31, thereby making the connection between the feed terminal 331 and the motherboard 31 and the first connecting line 334 more stable, which is beneficial to improving the radiation performance of the antenna assembly 33.

[0056] Similarly, in some embodiments, the orthographic projection of the grounding terminal 333 on the motherboard 31 is square. Compared with the second connecting line 335 and the first branch line 332, the grounding terminal 333 has a larger width and can also be cuboid in shape. This not only facilitates the arrangement of the antenna assembly 33, but also increases the volume of the grounding terminal 333 and the contact area between the grounding terminal 333 and the adapter assembly 32, thereby making the connection between the grounding terminal 333 and the adapter assembly 32 and the second connecting line 335 more stable, which is beneficial to improving the radiation performance of the antenna assembly 33.

[0057] The orthographic projection shape of the power supply terminal 331 on the motherboard 31 and the orthographic projection shape of the ground terminal 333 on the motherboard 31 can be the same or different. For example, the orthographic projection shape of the power supply terminal 331 on the motherboard 31 is a rectangle with a size of 2.1mm × 1.8mm, and the orthographic projection shape of the ground terminal 333 on the motherboard 31 is a rectangle with a size of 3mm × 1.5mm.

[0058] Please see Figure 3 In some embodiments of this application, the adapter component 32 includes a connector 321 and a reinforcing part 322. The motherboard 31 is electrically connected to the sound-generating component 12 through the connector 321. Specifically, a connecting cable 13 is provided between the earphone head 10 and the earphone stem 20. The connecting cable 13 is used to connect the sound-generating component 12 to the motherboard 31. At least a portion of the connecting cable 13 is located in the mounting cavity 21. The motherboard 31 is electrically connected to the sound-generating component 12 through the connector 321 and the connecting cable 13. Since the connecting cable 13 has more interfaces, compared with soldering, using the connector 321 for electrical connection can reduce the assembly difficulty between the sound-generating component 12 and the motherboard 31, and the production cost is lower. The connector 321 can be a BTB connector (Board-to-board Connector). BTB connectors have the advantages of high precision and small size, can support high current or dense pins, and have strong transmission capabilities.

[0059] A reinforcing part 322 is disposed on the side of the connector 321 opposite to the main board 31. The reinforcing part 322, located on the connector 321, increases the strength of the connector 321, thereby protecting the signal traces on the connector 321. The reinforcing part 322 is connected to the ground feed point 333, serving as the ground feed point for the antenna assembly 33. This allows the adapter assembly 32 and the antenna assembly 33 to form a complete current signal path, thereby improving the radiation efficiency and performance of the antenna assembly 33. Specifically, the reinforcing part 322 can be an FR4 reinforcing plate (Flame Retardant 4, a glass fiber epoxy resin material) or a steel sheet.

[0060] Please see Figure 4 In some embodiments of this application, the earphone stem 20 has a first end 22 and a second end 23 disposed opposite to each other. The side of the first end 22 is connected to the housing 11. The adapter assembly 32 and the antenna assembly 33 are both disposed on the side of the motherboard 31 near the first end 22. When the Bluetooth earphone 1 is worn on the ear, the adapter assembly 32 is located on the side of the motherboard 31 away from the ear.

[0061] It is easy to understand, such as Figure 2 As shown, when the Bluetooth headset 1 is worn on the ear, the adapter component 32 and the antenna component 33 are both located in the upper middle area of ​​the headset stem 20. The antenna component 33 is closer to the concha and farther from the lower part of the ear, thereby reducing the absorption of the radiated energy of the antenna component 33 by the ear and improving the radiation efficiency and radiation performance of the antenna component 33.

[0062] In conclusion, Figure 6 This is a graph showing the antenna radiation efficiency of the Bluetooth headset 1 on the head model in the embodiments of this application and related technologies. Figure 6 The dashed line in the figure represents the antenna radiation efficiency curve of Bluetooth headset 1 on the head model in the relevant technology. Figure 6 The solid line in the figure represents the antenna radiation efficiency curve of the Bluetooth headset 1 on the head model in this embodiment of the application. Figure 6 It can be seen that the antenna radiation efficiency of Bluetooth headset 1 on the head model in the related technology is -11.14803dB, -11.85661dB, and -13.15165dB at 2.4GHz, 2.45GHz, and 2.5GHz, respectively. The average antenna radiation efficiency in the entire Bluetooth 2.4GHz band in the related technology is -12.0521dB, or 6.2343%. Figure 6 As can be seen, the antenna radiation efficiency of the Bluetooth headset 1 on the head model in this embodiment is -9.862324dB, -9.545034dB, and -9.978908dB at 2.4GHz, 2.45GHz, and 2.5GHz, respectively. In the entire Bluetooth 2.4GHz band, the average antenna radiation efficiency in this embodiment is -9.7954dB, or 10.4824%. Therefore, compared with the average antenna radiation efficiency in related technologies, the average antenna radiation efficiency in this embodiment is improved by 2.2567dB, or 4.2481%, which is a significant improvement.

[0063] Figure 7 This is an antenna gain curve of Bluetooth headset 1 on the head model when Phi = 0° in the embodiments of this application and related technologies. Figure 7 The solid curve in the left figure is the antenna gain diagram of Bluetooth headset 1 on the head model when Phi = 0° in the embodiment of this application; Figure 7The dashed curve in the right figure represents the antenna gain of Bluetooth headset 1 on the head model when Phi = 0°, according to relevant technologies. Figure 7 In the left figure, the antenna with the solid line curve has a better radiation direction and a primary gain of -5.39 dBi. The worst radiation direction is at or around 118°, with an antenna gain better than -20.9856 dBi. The worst radiation direction is at or around 151°, with an antenna gain better than -14.7491 dBi. Figure 7 In the right figure, the antenna radiation direction of the dashed curve is similar to that of the antenna radiation direction of the solid curve in the left figure, but the overall gain is lower, with a main gain of -7.85 dBi. The worst radiation direction is at or around 176°, with an antenna gain better than -25.7167 dBi; the worst radiation direction is at or around 83°, with an antenna gain better than -21.3159 dBi. Figure 7 As can be seen, in this embodiment, the antenna main resolution gain at Phi = 0° is -5.39 dBi, compared to -7.85 dBi in related technologies. The antenna main resolution gain at Phi = 0° in this embodiment is improved by 2.46 dB, which is a significant improvement. Furthermore, the worst antenna gain at Phi = 0° in this embodiment is -20.9856 dBi, compared to -25.7167 dBi in related technologies. The antenna gain of the head-mounted module at Phi = 0° in this embodiment is improved by 4.7311 dB, which is also a significant improvement.

[0064] Figure 8 This is a graph showing the antenna gain curve of Bluetooth headset 1 on the head model when Phi = 90° in the embodiments of this application and related technologies. Figure 8 The solid curve in the left figure is the antenna gain diagram of Bluetooth headset 1 on the head model when Phi = 90° in the embodiment of this application; Figure 8 The dashed curve in the right figure represents the antenna gain of Bluetooth headset 1 on the head model when Phi = 90°, according to relevant technologies. Figure 8 In the left figure, the antenna radiation performance of the solid line curve is as follows: the main gain is -7.81 dBi, the worst direction is at and around 71°, and its antenna gain is better than -22.6665 dBi; the poorest radiation direction is at and around 152.201°, and its antenna gain is better than -19.8045 dBi. Figure 8 In the right-hand figure, the antenna radiation performance represented by the dashed curve is as follows: the primary gain is -8.58 dBi, the worst radiation direction is at and around 136°, with an antenna gain better than -24.5748 dBi; the poorest radiation direction is at and around 180°, with an antenna gain better than -23.3506 dBi. Figure 8As can be seen, in this embodiment, the antenna main resolution gain when Phi = 90° is -7.81dBi, compared with the antenna main resolution gain of -8.58dBi in related technologies when Phi = 90°. In this embodiment, the antenna main resolution gain of the head-mounted module when Phi = 90° is improved by 0.77dB. Furthermore, in this embodiment, the worst antenna gain when Phi = 90° is -22.6665dBi, compared with the worst antenna gain of -24.5748dBi in related technologies when Phi = 90°. In this embodiment, the antenna gain of the head-mounted module when Phi = 90° is improved by 1.9083dB, which is a significant improvement.

[0065] Figure 9 This is a graph showing the antenna gain curve of Bluetooth headset 1 on the head model when Theta = 0° in the embodiments of this application and related technologies. Figure 9 The solid curve in the left figure is the antenna gain diagram of Bluetooth headset 1 on the head model when Theta = 0° in the embodiment of this application; Figure 9 The dashed curve in the right figure represents the antenna gain of Bluetooth headset 1 on the head model when Theta = 0°, according to relevant technologies. Figure 9 In the left figure, the antenna with the solid line curve has a better radiation direction, and its antenna gain is -7.30262 dBi. Figure 9 In the right-hand figure, the antenna radiation gain of the dashed curve is relatively low, with a gain of -9.61334 dBi. (From...) Figure 9 As can be seen, in this embodiment, the antenna gain when Theta = 0° is -7.30262dBi, compared with the antenna gain of -9.61334dBi when Theta = 0° in related technologies. The antenna gain in this embodiment when Theta = 0° is increased by 2.31072dB, which is a significant improvement.

[0066] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0067] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A Bluetooth earphone, characterized in that, The earphone comprises: a headphone head comprising a shell and a sound production component arranged in the shell; a headphone rod connected with the shell, the headphone rod having a mounting cavity; a functional component comprising a mainboard, an adapter component and an antenna component, the mainboard being arranged in the mounting cavity, the adapter component being arranged on the mainboard, and the mainboard being electrically connected with the sound production component through the adapter component, the antenna component being located on a side of the adapter component away from the mainboard, the antenna component being electrically connected with the mainboard and the adapter component, and the antenna component extending in a bent shape.

2. The Bluetooth headset of claim 1, wherein, The antenna component comprises a feeding end, a first branch line and a ground feeding end connected in sequence, the feeding end being electrically connected with the mainboard, the ground feeding end being electrically connected with the adapter component, and the first branch line extending in a bent shape.

3. The Bluetooth headset of claim 2, wherein, The antenna component further comprises: a first connecting line, one end of the first connecting line being connected with a side of the feeding end away from the first branch line, and the other end of the first connecting line being connected with a first end of the first branch line; a second connecting line, one end of the second connecting line being connected with a side of the ground feeding end away from the first branch line, and the other end of the second connecting line being connected with a second end of the first branch line.

4. The Bluetooth headset of claim 2, wherein, The feeding end has a square shape in orthographic projection on the mainboard; and / or, the ground feeding end has a square shape in orthographic projection on the mainboard.

5. The Bluetooth headset of claim 2, wherein, The adapter component comprises a connecting seat and a reinforcing part, the mainboard being electrically connected with the sound production component through the connecting seat, the reinforcing part being arranged on a side of the connecting seat away from the mainboard, and the reinforcing part being connected with the ground feeding end.

6. The Bluetooth headset of claim 1, wherein, The antenna component has an orthographic projection on the mainboard, and the orthographic projection does not exceed the outer contour of the mainboard.

7. The Bluetooth headset of claim 1, wherein, The headphone rod has oppositely arranged first and second end portions, the first end portion being connected with the shell, and the adapter component and the antenna component being arranged on a side of the mainboard close to the first end portion. When the Bluetooth earphone is worn on an ear, the adapter component is located on a side of the mainboard away from the ear.

8. The Bluetooth headset of claim 1, wherein, A distance between a side of the mainboard away from the adapter component and an inner wall of the mounting cavity is L1, and L1 satisfies 0mm≤L1≤1mm.

9. The Bluetooth headset of claim 1, wherein, The functional component further comprises: a touch component located in the mounting cavity and electrically connected with the mainboard.

10. The Bluetooth headset of claim 9, wherein, The touch component and the antenna component are located on the same side of the mainboard, and the touch component and the antenna component are arranged in a spaced manner.

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