Earphone

Abstract

The present application relates to the technical field of electronic devices, and discloses an earphone. The earphone comprises an antenna assembly and a capacitive detection assembly. The capacitive detection assembly is disposed within a radiation range of the antenna assembly, and is configured to generate a corresponding electrical signal on the basis of whether a user is wearing the earphone or whether the user is executing a touch action. The capacitive detection assembly is provided with an electrode region and a ground line, the electrode region is used for generating the electrical signal, and the ground line is annularly disposed around the electrode region and spaced apart from the electrode region. The present application improves the capacitive detection assembly, reduces the influence of the capacitive detection assembly on the antenna assembly, and improves antenna efficiency. Specifically, the ground line is annularly disposed around the electrode region, so that a signal coupled from the antenna assembly to the capacitive detection assembly is suppressed, and the transmission of electromagnetic energy between the antenna assembly and the capacitive detection assembly is reduced, thereby achieving the effects of shielding and isolation, and improving antenna efficiency.

Description

A type of headphone [Technical Field]

[0001] This application relates to the technical field of electronic devices, specifically to a type of headset. [Background Technology]

[0002] The headphones have a relatively compact structure and can be controlled in various ways, giving them a variety of functions. During the research and development process, the inventors of this application discovered that the antenna efficiency of the headphones was somewhat defective. [Summary of the Invention]

[0003] This application provides an earphone, which includes an antenna assembly and a capacitive detection assembly. The capacitive detection assembly is disposed within the radiation range of the antenna assembly and is configured to generate a corresponding electrical signal based on whether the user is wearing the earphone or whether the user performs a touch action.

[0004] The capacitive detection component includes an electrode area and a grounding wire. The electrode area is used to generate the electrical signal, and the grounding wire is arranged around the electrode area and spaced apart from it.

[0005] The beneficial effects of this application are: This application improves the capacitive detection component, reduces the impact of the capacitive detection component on the antenna component, and improves the antenna efficiency; specifically, it uses a grounding wire loop around the electrode area to suppress the signal coupled from the antenna component to the capacitive detection component, reduces the transmission of electromagnetic energy between the antenna component and the capacitive detection component, thereby achieving the effect of shielding and isolation, and improving the antenna efficiency. [Attached Image Description]

[0006] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0007] Figure 1 is a partial structural schematic diagram of the earphone in some embodiments of this application;

[0008] Figure 2 is a schematic diagram of the frame of the headphones in some other embodiments of the embodiment shown in Figure 1;

[0009] Figure 3 is a schematic diagram of the framework of the capacitive detection component in some embodiments of the embodiment shown in Figure 1;

[0010] Figure 4 is a schematic diagram of the framework of the capacitive detection component in some embodiments of the embodiment shown in Figure 1;

[0011] Figure 5 is a partial structural schematic diagram of the capacitive detection component in some embodiments of the embodiment shown in Figure 3.

[0012] Figure 6 is a partial structural schematic diagram of the capacitive detection component in some embodiments of the embodiment shown in Figure 3;

[0013] Figure 7 is a partial structural schematic diagram of the capacitive detection component in some embodiments of the embodiment shown in Figure 3;

[0014] Figure 8 is a partial structural schematic diagram of the capacitive detection component in some embodiments of the embodiment shown in Figure 3;

[0015] Figure 9 is a partial structural schematic diagram of the capacitive detection component in some embodiments of the embodiment shown in Figure 3;

[0016] Figure 10 is a partial structural schematic diagram of the capacitive detection component in some embodiments of the embodiment shown in Figure 3;

[0017] Figure 11 is a partial structural schematic diagram of the capacitive detection component in some embodiments of the embodiment shown in Figure 3;

[0018] Figure 12 is a schematic diagram of the structure of a user wearing headphones in some embodiments of this application;

[0019] Figure 13 is a schematic diagram of the headphone structure in the embodiment shown in Figure 12 from one viewpoint;

[0020] Figure 14 is a structural schematic diagram of the headphones in the embodiment shown in Figure 12 from another perspective;

[0021] Figure 15 is a partial structural diagram of the abutment portion in some embodiments of the embodiment shown in Figure 14;

[0022] Figure 16 is a schematic diagram of the structure of the first circuit board, the second circuit board, and the capacitive detection component in some embodiments of the embodiment shown in Figure 15.

Detailed Implementation Methods

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0024] The reference to "embodiment" in this application means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0025] This application describes an earphone. In some scenarios, the earphone can be a clip-on earphone or an ear-hook earphone. In some scenarios, the earphone can be an in-ear earphone or a non-in-ear earphone. In some scenarios, the earphone can be a bone conduction earphone or an air conduction earphone. Bone conduction earphones transmit sound through bone, unlike air conduction earphones which transmit sound waves to the eardrum through air. Bone conduction earphones can transmit sound vibrations directly to the inner ear through the skull, bypassing the outer and middle ear, and directly stimulating the auditory nerve of the inner ear. It is understood that the earphone can also be an earphone obtained by combining any two types of earphones described in the above embodiments according to reasonable logic.

[0026] Please refer to Figure 1, which is a partial structural schematic diagram of the earphone in some embodiments of this application. The earphone 100 may include an antenna assembly 10 and a capacitive detection assembly 20. Of course, the earphone 100 may also include other structures well known in the art, which will not be described in detail.

[0027] The antenna assembly 10 can communicate with a terminal device (also referred to as an "electronic device" or "control terminal"), such as a mobile phone or computer, to enable data transmission between the headset and the terminal device. For example, the headset 100 can receive audio data transmitted from the terminal device through the antenna assembly 10 and can play the audio data. For example, the headset 100 can receive program data transmitted from the terminal device through the antenna assembly 10 and can use the program data to perform program upgrades. For example, the headset 100 can transmit its own operating status, such as battery information, user wearing information, and / or fault information, to the terminal device.

[0028] In some embodiments, the antenna assembly 10 can communicate with the terminal device via wireless communication connection methods such as Bluetooth or Wi-Fi (Wireless Fidelity).

[0029] The capacitive detection component 20 allows users to interact with the headset 100. In some embodiments, the capacitive detection component 20 can be configured to generate corresponding electrical signals based on the user's touch actions on the headset 100. That is, when the capacitive detection component 20 is triggered, the headset 100 can generate corresponding control commands to allow the headset 100 to perform preset functions. In some scenarios, touch actions can include any single action or combination of multiple actions such as single click, double click, long press, and swipe; in some scenarios, control commands can be used to implement any single function or combination of multiple functions such as volume up / down, play / pause, next track, and power on / off. In some scenarios, when the user operates the headset 100, for example, when the user presses the area on the headset 100 where the capacitive detection component 20 is located, the user can contact the capacitive detection component 20 to generate an electrical signal, thereby generating corresponding control commands.

[0030] In some embodiments, the capacitive detection component 20 can be configured to detect whether the user is wearing the headphones 100 and generate a corresponding electrical signal, thereby allowing the headphones 100 to perform preset functions, such as wear detection. In some scenarios, when the user wears the headphones 100, the capacitive detection component 20 is triggered by the user's ear or head to generate an electrical signal, which in turn generates a corresponding control command.

[0031] It should be noted that the wearing detection of the earphone 100 can bring the following benefits: 1) Extend the battery life of the earphone 100, for example, the earphone 100 is in a powered-off or standby state when the detection result is that it is not being worn; 2) Improve the privacy of the earphone 100, for example, the earphone 100 pauses the audio data that is being played when the detection result is that it is not being worn; 3) Prevent the earphone 100 from establishing a communication connection with the terminal device when it is not necessary, for example, the earphone 100 does not establish a communication connection with the terminal device when it is placed in the charging case and the charging case is in the open state.

[0032] Please refer to Figure 2, which is a schematic diagram of the framework of the earphone 100 in the embodiment shown in Figure 1 in some other embodiments. The earphone 100 may also include a processing circuit 101, which is electrically connected to the capacitive detection component 20, receives the electrical signal generated by the capacitive detection component 20, processes the electrical signal, and realizes the preset function of the earphone 100 in the above embodiments.

[0033] Please refer to Figure 1, where the capacitive detection component 20 is within the radiation range of the antenna component 10. The inventors discovered through research that:

[0034] The electromagnetic waves emitted by antenna assembly 10 will couple to the capacitive detection assembly 20 to some extent. The capacitive detection assembly 20 may come into contact with and / or be positioned close to the human body, causing the electromagnetic energy coupled to it to be absorbed by the human body, further reducing the antenna efficiency of antenna assembly 10. For example, when the capacitive detection assembly 20 for wear detection is close to the human body, electromagnetic energy is absorbed by the user's head, ultimately leading to a decrease in antenna efficiency. Similarly, when the capacitive detection assembly 20 for touch operation is close to the human body, electromagnetic energy is absorbed by the human body, ultimately leading to a decrease in antenna efficiency. Furthermore, when the capacitive detection assembly 20 for touch operation is touched by the user, electromagnetic energy is absorbed by the human body, ultimately leading to a decrease in antenna efficiency. Of course, the impact of the capacitive detection assembly 20 on the antenna efficiency of antenna assembly 10 is not limited to the methods listed here.

[0035] Through research, the inventors discovered that the impact of the capacitive detection component 20 on the antenna assembly 10 can be reduced by setting a serpentine wire and / or a grounding wire. Compared to the impact of the capacitive detection component 20 without a serpentine wire and grounding wire, the impact of the capacitive detection component 20 with a serpentine wire and / or grounding wire on the antenna assembly 10 is lower, thus improving the antenna efficiency of the antenna assembly 10. In some scenarios, the inventors fully utilize the distributed inductance and distributed capacitance of the serpentine wire to act as an equivalent low-pass, high-impedance (allowing low-frequency signals to pass while blocking high-frequency signals) filter. The serpentine wire itself forms a filter network to suppress high-frequency signals coupled from the antenna assembly 10 to the capacitive detection component 20, reducing the transmission of electromagnetic energy between the antenna assembly 10 and the capacitive detection component 20, thereby achieving shielding and isolation effects and improving the antenna efficiency of the antenna assembly 10. In some scenarios, the inventors improved the capacitive detection component 20 by using a grounding wire, so that the electromagnetic energy coupled to the capacitive detection component 20 is coupled to the grounding wire, suppressing the signal coupled from the antenna component 10 to the capacitive detection component 20, reducing the transmission of electromagnetic energy between the antenna component 10 and the capacitive detection component 20, thereby achieving the effect of shielding and isolation and improving antenna efficiency.

[0036] The capacitive detection component 20 with serpentine wires and / or grounding wires will be described next.

[0037] Please refer to Figure 3, which is a schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 1. The capacitive detection component 20 may be provided with an electrode area 21 and a ground wire 22. The electrode area 21 can be used to generate the electrical signal in the above embodiments. The ground wire 22 can be connected to the ground in the earphone 100. The ground wire 22 is arranged around the electrode area 21 and spaced apart from the electrode area 21. By using the ground wire to surround the electrode area 21, the signal coupled from the antenna assembly 10 to the capacitive detection component 20 is suppressed, and the transmission of electromagnetic energy between the antenna assembly 10 and the capacitive detection component 20 is reduced, thereby achieving the effect of shielding and isolation, and improving the antenna efficiency of the antenna assembly 10.

[0038] In some embodiments, electrode region 21 may include a detection electrode layer 211 and a reference electrode layer 212 stacked together. Both the detection electrode layer 211 and the reference electrode layer 212 may be electrically connected to the processing circuit 101. The detection electrode layer 211 can be used to generate the electrical signal described in the above embodiments. The reference electrode layer 212 can be used to generate a denoised signal. The denoised signal and the electrical signal can be transmitted to the processing circuit 101, allowing the processing circuit 101 to use the denoised signal to remove noise from the electrical signal, reducing the background noise of the electrical signal and improving the signal-to-noise ratio. In some scenarios, the reference electrode layer 212 can be used to suppress temperature drift. In some scenarios, in the earphone 100, during touch operation or wear detection, the detection electrode layer 211 is closer to the human body than the reference electrode layer 212.

[0039] In some embodiments, the reference electrode layer 212 may be omitted, and an electrical signal may be generated by the detection electrode layer 211.

[0040] Please refer to Figure 4, which is a schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 1. The capacitive detection component 20 may include a detection electrode layer 211 and a reference electrode layer 212 stacked together. The detection electrode layer 211 and / or the reference electrode layer 212 may include a serpentine line 213. At least a portion of the serpentine line 213 is disposed in the overlapping area of ​​the detection electrode layer 211 and the reference electrode layer 212 in the stacking direction. Utilizing the distributed inductance and distributed capacitance of the serpentine line 213, it is equivalent to a low-pass, high-impedance network, suppressing high-frequency signals coupled from the antenna assembly 10 to the capacitive detection component 20, reducing the transmission of electromagnetic energy between the antenna assembly 10 and the capacitive detection component 20, thereby achieving shielding and isolation effects and improving the antenna efficiency of the antenna assembly 10. In some scenarios, the serpentine line 213 may be entirely disposed in the overlapping area of ​​the detection electrode layer 211 and the reference electrode layer 212 in the stacking direction.

[0041] In this application, the overlapping region can be disposed in the detection electrode layer 211 and the reference electrode layer 212. On a reference plane perpendicular to the stacking direction, the orthographic projection of the overlapping region of the detection electrode layer 211 on the reference plane coincides with the orthographic projection of the overlapping region of the reference electrode layer 212 on the reference plane.

[0042] The grounding wire 22 described in Figure 3 and the above embodiments is not shown in Figure 4. Only the structure of the electrode area 21 is shown. That is, the capacitive detection component 20 may not need to be grounded if the serpentine wire 213 is provided. Of course, the capacitive detection component 20 in Figure 4 may also be grounded according to the description in Figure 3 and the above embodiments, which will not be elaborated further.

[0043] Please refer to Figure 5, which is a partial structural schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 3. The grounding wire 22 may include a first grounding wire 221, which may be disposed in the same layer as the detection electrode layer 211 and surround the detection electrode layer 211. The first grounding wire 221 can shield and isolate the detection electrode layer 211 and the reference electrode layer 212, thereby improving the antenna efficiency of the antenna component 10.

[0044] In some embodiments, in order to improve the shielding and isolation effect of the grounding wire 22, such as the first grounding wire 221, on the detection electrode layer 211 and the reference electrode layer 212, the distance between the detection electrode layer 211 and the first grounding wire 221 may be greater than or equal to 0.2 mm.

[0045] In some embodiments, the line width of the grounding wire 22, such as the first grounding wire 221, should not be too narrow, otherwise it will be difficult to achieve the shielding and isolation effect. However, it should not be too wide either, otherwise the current will be more distributed on the grounding wire 22, such as the first grounding wire 221. When the grounding wire 22, such as the first grounding wire 221, is close to the human body, it is more easily absorbed by the human body, which will also reduce the antenna efficiency of the antenna assembly 10. Therefore, in order to ensure the shielding and isolation effect of the grounding wire 22, such as the first grounding wire 221, the line width of the first grounding wire 221 can be between 0.1mm and 0.3mm.

[0046] In some embodiments, the detection electrode layer 211 serves as the main structure of the capacitive detection component 20, and therefore requires high shielding and isolation effects. In order to improve the shielding and isolation effect of the grounding wire 22, such as the first grounding wire 221, on the detection electrode layer 211 and the reference electrode layer 212, the first grounding wire 221 can be arranged in a closed loop around the detection electrode layer 211.

[0047] Please refer to Figure 5. The first electrode 2111 in the detection electrode layer 211 can be a sheet. By laying the entire sheet, the area of ​​the first electrode 2111 can be increased, thereby improving the detection sensitivity of the capacitive detection component 20, such as the detection electrode layer 211.

[0048] Please refer to Figure 6, which is a partial structural schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 3. The serpentine line 213 may include a first serpentine line 2131. The first serpentine line 2131 is disposed in the detection electrode layer 211. That is, the first electrode 2111 may be the first serpentine line 2131.

[0049] Please refer to Figure 7, which is a partial structural schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 3. The detection electrode layer 211 may include grid lines. That is, the first electrode 2111 may be a grid line.

[0050] It is understood that a portion of the structure of the first electrode 2111 in the detection electrode layer 211 may also be a combination of the structures described in the above embodiments. For example, a portion of the structure of the first electrode 2111 may be a sheet. For example, a portion of the structure of the first electrode 2111 may be a grid line. For example, a portion of the structure of the first electrode 2111 may be a first serpentine line 2131. For example, at least one of the three structures—sheet, grid line, and first serpentine line 2131—may be at least a portion of the first electrode 2111.

[0051] Of course, the specific structure of the first electrode 2111 is not limited to the embodiments listed herein, but may also be a structure well known in the art, which will not be elaborated here.

[0052] Referring to Figure 6, the first serpentine line 2131 may include multiple main extensions (e.g., first main extensions 2133) and multiple connecting portions (e.g., first connecting portions 2134). The multiple first main extensions 2133 may be arranged side-by-side at intervals along a first direction Y1 and extend in a direction intersecting the first direction Y1. The multiple first connecting portions 2134 may connect the multiple first main extensions 2133 sequentially.

[0053] In some embodiments, the direction intersecting the first direction Y1 may be the same as or different from the second direction X2 (see Figure 10). In some embodiments, the direction intersecting the first direction Y1 may be denoted as the third direction X1, and the third direction X1 may be the same as or different from the second direction X2. In some embodiments, the first direction Y1 may be perpendicular to the second direction X2 and / or the third direction X1.

[0054] In some embodiments, the line width of the serpentine line 213, such as the first serpentine line 2131, should not be too wide; otherwise, it will be difficult to achieve a high impedance when the antenna assembly 10 communicates with the terminal device via Bluetooth. Furthermore, to ensure the inductive effect of the serpentine line 213, such as the first serpentine line 2131, the line width of the first main extension 2133 may be less than or equal to 0.3 mm. In some embodiments, the line width of the first connection portion 2134 may be less than or equal to 0.3 mm.

[0055] In some embodiments, in the serpentine line 213, such as the first serpentine line 2131, in order to construct a higher inter-line parasitic capacitance, the spacing between two adjacent first main extensions 2133 also needs to be as narrow as possible, and thus the spacing between two adjacent first main extensions 2133 can be less than or equal to 0.5 mm.

[0056] In some embodiments, the detection electrode layer 211 has a terminal 2112. The terminal 2112 can be electrically connected to the first electrode 2111 and the processing circuit 101 respectively, thereby realizing the electrical connection between the first electrode 2111 and the processing circuit 101.

[0057] Please refer to Figure 8, which is a partial structural schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 3. The detection electrode layer 211 may include a dense region 2113 and a sparse region 2114. A plurality of first main extensions 2133 may be disposed in the dense region 2113 and the sparse region 2114. In order to balance the two factors of higher impedance and smaller parasitic capacitance in the serpentine line 213, such as the first serpentine line 2131, it is necessary to design a portion of the serpentine line 213, such as the first serpentine line 2131, to be more dense, so that the spacing between two adjacent first main extensions 2133 in the dense region 2113 is smaller than the spacing between two adjacent first main extensions 2133 in the sparse region 2114, thereby making the first serpentine lines 2131 densely arranged in the dense region 2113 and sparsely arranged in the sparse region 2114.

[0058] In some embodiments, terminal 2112 is connected to first main extension 2133 in sparse region 2114 via first main extension 2133 in dense region 2113.

[0059] In some embodiments, excessively high parasitic capacitance in the serpentine line 213 (e.g., the first serpentine line 2131) and / or the parasitic capacitance between the reference electrode layer 212 and the detection electrode layer 211 can increase the difficulty for the processing circuit 101 to calibrate this portion of parasitic capacitance, and may even cause the headphone 100's wear detection function to fail. Conversely, a smaller area in the dense region 2113 compared to the sparse region 2114 can reduce the parasitic capacitance in the serpentine line 213 (e.g., the first serpentine line 2131) and / or the parasitic capacitance between the reference electrode layer 212 and the detection electrode layer 211, minimizing the difficulty for the processing circuit 101 to calibrate this portion of parasitic capacitance and ensuring the headphone 100's wear detection function.

[0060] Of course, in some embodiments, the area of ​​the dense region 2113 may also be greater than or equal to the area of ​​the sparse region 2114.

[0061] Please refer to Figure 9, which is a partial structural schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 3. The grounding wire 22 may include a second grounding wire 222, which may be disposed in the same layer as the reference electrode layer 212 and surround the reference electrode layer 212. The second grounding wire 222 can shield and isolate the detection electrode layer 211 and the reference electrode layer 212, improving the antenna efficiency of the antenna component 10. In some embodiments, both the first grounding wire 221 and the second grounding wire 222 may be omitted. In some embodiments, one of the first grounding wire 221 and the second grounding wire 222 may be omitted, and the other may be disposed as described in the above embodiments. Alternatively, it may be disposed between the detection electrode layer 211 and the reference electrode layer 212, on the side of the detection electrode layer 211 facing away from the reference electrode layer 212, or on the side of the reference electrode layer 212 facing away from the detection electrode layer 211. In some embodiments, the first grounding wire 221 and the second grounding wire 222 may also be an integral structure, for example, using the same wire to simultaneously encircle the detection electrode layer 211 and the reference electrode layer 212.

[0062] In some embodiments, in order to improve the shielding and isolation effect of the grounding wire 22, such as the second grounding wire 222, on the detection electrode layer 211 and the reference electrode layer 212, the distance between the reference electrode layer 212 and the second grounding wire 222 may be greater than or equal to 0.2 mm.

[0063] In some embodiments, the line width of the grounding wire 22, such as the second grounding wire 222, should not be too narrow, otherwise it will be difficult to achieve the shielding and isolation effect. However, it should not be too wide either, otherwise more current will be distributed on the grounding wire 22, such as the second grounding wire 222. When the grounding wire 22, such as the second grounding wire 222, is close to the human body, it is more easily absorbed by the human body, which will also reduce the antenna efficiency of the antenna assembly 10. Therefore, in order to ensure the shielding and isolation effect of the grounding wire 22, such as the second grounding wire 222, the line width of the second grounding wire 222 can be between 0.1mm and 0.3mm.

[0064] In some embodiments, the second grounding wire 222 can be electrically connected to the first grounding wire 221 to simplify the circuitry in the earphone 100. In some embodiments, to improve the electrical connection strength between the second grounding wire 222 and the first grounding wire 221, achieve uniform current distribution, and ensure grounding effectiveness, the second grounding wire 222 and the first grounding wire 221 can be electrically connected between layers through multiple connection points arranged circumferentially, such as the first connection point 2211 (see FIG. 5) and the second connection point 2221 (see FIG. 9). In some embodiments, referring to FIG. 5, the first connection point 2211 can be arranged circumferentially around the first grounding wire 221; referring to FIG. 9, the second connection point 2221 can be arranged circumferentially around the second grounding wire 222. Correspondingly, the first grounding wire 221 and the second grounding wire 222 are electrically connected between layers.

[0065] In some embodiments, in the capacitive detection assembly 20, the reference electrode layer 212 is located slightly further from the human body than the detection electrode layer 211, thus its ability to couple the energy of the high-frequency signal of the antenna assembly 10 is weaker. Compared to the detection electrode layer 211, the reference electrode layer 212 has lower requirements for shielding and isolation. Therefore, referring to FIG9, the second grounding wire 222 may not be arranged in a closed loop around the reference electrode layer 212, thus forming a gap 223. Of course, the second grounding wire 222 may also be arranged in a closed loop around the reference electrode layer 212.

[0066] In some embodiments, the effective area of ​​the detection electrode layer 211 is larger than the effective area of ​​the reference electrode layer 212. Consequently, the reference electrode layer 212 has a weaker ability to couple the energy of the high-frequency signal of the antenna assembly 10, making the shielding and isolation requirements of the reference electrode layer 212 lower than those of the detection electrode layer 211. Furthermore, referring to FIG9, the second grounding line 222 may form a notch 223.

[0067] In some embodiments, the capacitive sensing component 20 may further include a first terminal 2122 and a second terminal 2123 disposed on the same layer as the reference electrode layer 212. Since the reference electrode layer 212 has lower requirements for shielding and isolation compared to the sensing electrode layer 211, both the first terminal 2122 and the second terminal 2123 can be disposed on the reference electrode layer 212 to ensure the integrity of the first grounding wire 221's closed-loop arrangement, and to better guarantee the shielding and isolation effect of the first grounding wire 221 on the sensing electrode layer 211. Furthermore, the reference electrode layer 212 can be electrically connected to the first terminal 2122 on the same layer, the sensing electrode layer 211 can be electrically connected to the second terminal 2123 between layers, the first grounding wire 221 and the second grounding wire 222 are electrically connected between layers and grounded through the second grounding wire 222, and the notch 223 allows the first terminal 2122 and the second terminal 2123 to be led out. In some embodiments, the terminal 2112 of the sensing electrode layer 211 can be electrically connected to the second terminal 2123 between layers. In some embodiments, the first grounding wire 221 and the second grounding wire 222 can be electrically connected between the layers through the first connection point 2211 and the second connection point 2221. In some embodiments, the first terminal 2122 and the second terminal 2123 can be electrically connected to the processing circuit 101 after being led out through the notch 223.

[0068] Please refer to Figure 9. The second electrode 2121 in the reference electrode layer 212 can be a grid line to reduce the effective area of ​​the reference electrode layer 212.

[0069] Please refer to Figure 10, which is a partial structural schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 3. The serpentine line 213 may include a second serpentine line 2132. The second serpentine line 2132 is disposed in the reference electrode layer 212. That is, the second electrode 2121 may be the second serpentine line 2132.

[0070] In some embodiments, the second electrode 2121 may also be a sheet.

[0071] It is understood that a portion of the structure of the second electrode 2121 in the reference electrode layer 212 may also be a combination of the structures described in the above embodiments. For example, a portion of the structure of the second electrode 2121 may be a sheet-like body. For example, a portion of the structure of the second electrode 2121 may be a grid line. For example, a portion of the structure of the second electrode 2121 may be a second serpentine line 2132. For example, at least one of the three structures—a sheet-like body, a grid line, and a second serpentine line 2132—may be at least a portion of the second electrode 2121.

[0072] Of course, the structure of the second electrode 2121 is not limited to the embodiments listed herein, but may also be a structure well known in the art, which will not be elaborated here.

[0073] Referring to Figure 10, the second serpentine line 2132 may include multiple main extensions (e.g., second main extensions 2135) and multiple connecting portions (e.g., second connecting portions 2136). The multiple second main extensions 2135 may be arranged side-by-side at intervals along the second direction X2 and extend in a direction intersecting the second direction X2. The multiple second connecting portions 2136 may connect the multiple second main extensions 2135 sequentially.

[0074] In some embodiments, the direction intersecting the second direction X2 may be the same as or different from the first direction Y1. In some embodiments, the direction intersecting the second direction X2 may be denoted as the fourth direction Y2, and the fourth direction Y2 may be the same as or different from the first direction Y1. In some embodiments, the second direction X2 may be perpendicular to the fourth direction Y2 and / or the first direction Y1.

[0075] In some embodiments, when the second serpentine line 2132 cooperates with the first serpentine line 2131, and the second direction X2 intersects the first direction Y1, and the fourth direction Y2 intersects the third direction X1, the second main extension 2135 and the first main extension 2133 can be staggered, reducing the overlap area of ​​the second main extension 2135 and the first main extension 2133 in the stacking direction, thereby reducing the parasitic capacitance between the reference electrode layer 212 and the detection electrode layer 211. In some embodiments, the second direction X2 is perpendicular to the first direction Y1, and the fourth direction Y2 is perpendicular to the third direction X1, which can further reduce the overlap area of ​​the second main extension 2135 and the first main extension 2133 in the stacking direction. Furthermore, the first direction Y1 and the fourth direction Y2 are the same, and the third direction X1 and the second direction X2 are the same.

[0076] In some embodiments, the line width of the serpentine line 213, such as the second serpentine line 2132, should not be too wide; otherwise, it will be difficult to achieve a high impedance when the antenna assembly 10 communicates with the terminal device via Bluetooth. Furthermore, to ensure the inductive effect of the serpentine line 213, such as the second serpentine line 2132, the line width of the second main extension 2135 may be less than or equal to 0.3 mm. In some embodiments, the line width of the second connection portion 2136 may be less than or equal to 0.3 mm.

[0077] In some embodiments, in the serpentine line 213, such as the second serpentine line 2132, in order to construct a higher inter-line parasitic capacitance, the spacing between two adjacent second main extensions 2135 also needs to be as narrow as possible, and thus the spacing between two adjacent second main extensions 2135 can be less than or equal to 0.5 mm.

[0078] In some embodiments, the reference electrode layer 212 has a terminal, such as a first terminal 2122. The terminal, such as the first terminal 2122, can be electrically connected to the second electrode 2121 and the processing circuit 101 respectively, thereby realizing the electrical connection between the second electrode 2121 and the processing circuit 101.

[0079] Please refer to Figures 10 and 11. Figure 11 is a partial structural schematic diagram of the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 3. The reference electrode layer 212 may include a first region 2124 and a second region 2125. A plurality of second main extensions 2135 may be disposed in the first region 2124 and the second region 2125. In order to balance the two factors of higher impedance and smaller parasitic capacitance in the serpentine line 213, such as the second serpentine line 2132, it is necessary to design the portion of the serpentine line 213, such as the second serpentine line 2132, to be more dense, so that the spacing between two adjacent second main extensions 2135 in the first region 2124 is smaller than the spacing between two adjacent second main extensions 2135 in the second region 2125, thereby making the second serpentine lines 2132 densely arranged in the first region 2124 and sparsely arranged in the second region 2125. Therefore, the first region 2124 may be referred to as the "dense region" and the second region 2125 may be referred to as the "sparse region".

[0080] In some embodiments, a terminal, such as a first terminal 2122, is connected to a second main extension 2135 in a second region 2125 via a second main extension 2135 in a first region 2124.

[0081] In some embodiments, excessively high parasitic capacitance in the serpentine line 213 (e.g., the second serpentine line 2132) and / or the parasitic capacitance between the reference electrode layer 212 and the detection electrode layer 211 can increase the difficulty for the processing circuit 101 to calibrate this portion of parasitic capacitance, and may even cause the headphone 100's wear detection function to fail. Since the area of ​​the first region 2124 is smaller than the area of ​​the second region 2125, it can reduce the parasitic capacitance in the serpentine line 213 (e.g., the second serpentine line 2132) and / or the parasitic capacitance between the reference electrode layer 212 and the detection electrode layer 211, minimizing the difficulty for the processing circuit 101 to calibrate this portion of parasitic capacitance and ensuring the headphone 100's wear detection function.

[0082] Of course, in some embodiments, the area of ​​the first region 2124 may also be greater than or equal to the area of ​​the second region 2125.

[0083] The following describes an earphone 100, which can be configured using the methods described in the above embodiments. The following description uses an ear clip-on earphone as an example.

[0084] Please refer to Figure 12, which is a schematic diagram of the structure of the earphone 100 worn by the user in some embodiments of this application. The user's ear 200 may include physiological parts such as the external auditory canal 201, the concha 202, the cymba concha 203, the triangular fossa 204, the antihelix 205, the scaphoid fossa 206, the helix 207, and the antitragus 208. The external auditory canal 201 has a certain depth and extends to the tympanic membrane of the ear. For ease of description, unless otherwise specified, the external auditory canal 201 specifically refers to its entrance (i.e., the ear hole) away from the tympanic membrane. The physiological parts such as the concha 202, the cymba concha 203, and the triangular fossa 204 have a certain volume and depth, and the concha 202 is directly connected to the external auditory canal 201. That is, it can be simply regarded as the aforementioned ear hole being located at the bottom of the concha 202.

[0085] The ear 200 also includes a tragus 209 around the external auditory canal. Compared to the concha 202, cymba conchae 203, and triangular fossa 204, these parts have a certain depth and volume in three-dimensional space. That is, these parts are concave towards the back of the ear along the direction closer to the user's head, while the tragus 209 protrudes towards the front of the ear along the direction away from the user's head. Here, "front of the ear" is a concept relative to "back of the ear." The former refers to the side of the ear away from the head, as shown in Figure 1, while the latter refers to the side of the ear facing the head. Both refer to the user's ear.

[0086] Individual differences may exist among users, resulting in variations in ear shape, size, and other dimensions. For ease of description and to minimize (or even eliminate) these individual differences, unless otherwise specified, this specification will primarily use an ear model with a "standard" shape and size as a reference to further describe the wearing method of the headphones 100 in different embodiments on this ear model. For example, a simulator containing a head and its (left and right) ears, such as the GRAS 45BC KEMAR, can be manufactured based on ANSI: S3.36, S3.25, and IEC: 60318-7 standards as a reference for wearing the headphones 100, thus representing the scenario where most users normally wear the headphones 100.

[0087] As an example only, the ear of the simulator for reference may have the following related characteristics: the size of the projection of the auricle in the sagittal plane in the vertical axis direction may be in the range of 49.5mm-74.3mm, and the size of the projection of the auricle in the sagittal plane in the sagittal axis direction may be in the range of 36.6mm-55mm.

[0088] In this application, descriptions of a user wearing the headphones 100, such as "wearing," "in a wearing state," and "under wearing condition," can be used to refer to the headphones 100 being worn on the ears of the aforementioned simulator. Of course, considering individual differences among users, the structure, shape, size, thickness, etc., of one or more parts of the ear 200 can vary. To meet the needs of different users, the headphones 100 can be designed differently. These differences can manifest as the characteristic parameters of one or more structures in the headphones 100 (e.g., the sound-emitting part 30, the contact part 40, the ear hook part 50, etc., hereinafter referred to as such) having different ranges of values ​​to adapt to different ears.

[0089] It should be noted that in medicine, anatomy, and other fields, the human body can be defined by three basic planes: the sagittal plane, the coronal plane, and the horizontal plane; and three basic axes: the sagittal axis, the coronal axis, and the vertical axis. The sagittal plane is a section perpendicular to the ground along the anteroposterior direction of the body, dividing the body into left and right parts. The coronal plane is a section perpendicular to the ground along the left-right direction of the body, dividing the body into anterior and posterior parts. The horizontal plane is a section parallel to the ground along the vertical direction of the body, dividing the body into superior and inferior parts. Correspondingly, the sagittal axis is the axis along the anteroposterior direction of the body and perpendicular to the coronal plane; the coronal axis is the axis along the left-right direction of the body and perpendicular to the sagittal plane; and the vertical axis is the axis along the vertical direction of the body and perpendicular to the horizontal plane.

[0090] Observing the ear of the simulator along the direction of the human coronal axis, we can obtain the schematic diagram of the anterior contour of the ear shown in Figure 12. Based on this, and referring to Figure 12, the three directions X, Y, and Z can be simply regarded as the human coronal axis, the human sagittal axis, and the human vertical axis, respectively, and the three planes XY, XZ, and YZ can be simply regarded as the human horizontal plane, the human coronal plane, and the human sagittal plane, respectively.

[0091] Please refer to Figures 12, 13, and 14. Figure 13 is a structural schematic diagram of the earphone 100 in the embodiment shown in Figure 12 from one perspective, and Figure 14 is a structural schematic diagram of the earphone 100 in the embodiment shown in Figure 12 from another perspective. The earphone 100 may include a sound-emitting part 30 inserted into the concha 202 of the wearer, an abutment part 40 for abutting against the back of the wearer's ear, and an ear hook part 50 connecting the sound-emitting part 30 and the abutment part 40. The sound-emitting part 30 is a sound playback device that can convert electrical signals into sound signals and play them to the wearer. When worn, it is located in the concha 202. The sound signal may be a bone conduction sound signal that transmits sound waves through bone, or an air conduction sound signal that transmits sound waves through air. The abutment part 40 and the sound-emitting part 30 form a clamping state. The abutment part 40 abuts against the outer wall of the concha 202, and the sound-emitting part 30 abuts against the inner wall of the concha 202, so as to clamp the earphone 100 onto the user's ear 200. The ear hook 50 is a component that provides clamping force for the sound-emitting part 30 and the abutment part 40. Both ends of the ear hook 50 are connected to the sound-emitting part 30 and the abutment part 40, respectively. In the wearing state, the ear hook 50 passes around the auricle 207 so that the sound-emitting part 30 and the abutment part 40 are positioned on both sides of the human ear along the coronal axis, and the sound-emitting part 30 extends into the concha 202 to transmit sound to the ear canal. In some embodiments, the ear hook 50 may have a symmetrical plane PL arranged along the length direction of the ear hook 50.

[0092] The abutment portion 40 can be used to mount functional components such as a battery, antenna assembly 10, and / or capacitive detection assembly 20. Of course, functional components such as a battery, antenna assembly 10, and / or capacitive detection assembly 20 can also be mounted on other structures of the earphone 100, such as the sound-emitting portion 30 and / or the abutment portion 40. Furthermore, in some embodiments, the antenna assembly 10 can be mounted on the sound-emitting portion 30 and / or the abutment portion 40. In some embodiments, the capacitive detection assembly 20 can be mounted on the sound-emitting portion 30 and / or the abutment portion 40.

[0093] Referring to Figure 14, the abutment portion 40 may include a first housing assembly 41 and an assembly 42 (see Figure 15, which is a partial structural schematic diagram of the abutment portion 40 in some embodiments of the embodiment shown in Figure 14). The first housing assembly 41 may be connected to the ear hook portion 50. The assembly 42 may be installed inside the first housing assembly 41. The assembly 42 may be a collection of corresponding functional elements on the earphone 100 that need to be installed inside the first housing assembly 41. Furthermore, by integrating and assembling the functional elements that need to be located inside the first housing assembly 41 into the assembly 42, the assembly efficiency and ease of assembly of the earphone 100 can be effectively improved.

[0094] Referring to Figure 14, the first housing assembly 41 may include a first housing 411 and a second housing 412 connected together. The first housing 411 and the second housing 412 may be connected by connection methods well known in the art, such as welding, bonding, snap-fitting, or screwing, to form a receiving cavity for accommodating the assembly 42. In some embodiments, the first housing 411 forms a receiving cavity with an opening 4101. The second housing 412 is connected to the first housing 411 to cover the opening 4101, thereby sealing the receiving cavity and providing an effective sealing environment for the assembly 42 disposed within the receiving cavity. In some embodiments, the assembly 42 may be placed into the receiving cavity through the opening 4101. In some embodiments, the assembly 42 may be embedded in the receiving cavity through the opening 4101. In some embodiments, the first housing 411 may be connected to the ear hook portion 50.

[0095] Referring to Figure 15, the assembly 42 may include an antenna assembly 10, a capacitive detection assembly 20, a bracket 421, a battery 422, and a circuit board assembly 423. The antenna assembly 10, capacitive detection assembly 20, battery 422, and circuit board assembly 423 are mounted on and fixed relative to the bracket 421 to form the assembly 42. The bracket 421 provides support for the antenna assembly 10, capacitive detection assembly 20, circuit board assembly 423, and battery 422. During assembly, the antenna assembly 10, capacitive detection assembly 20, battery 422, and circuit board assembly 423 can be spatially arranged on the bracket 421, and then further housed within the receiving cavity by the bracket 421. This effectively reduces the probability of damage to the antenna assembly 10, capacitive detection assembly 20, battery 422, and circuit board assembly 423 during assembly, thereby effectively improving the production yield of the earphone 100.

[0096] The bracket 421 can be formed by connecting multiple plate-like components. This ensures the structural strength of the bracket 421 while effectively reducing its overall weight, thereby effectively reducing the overall weight of the earphone 100. A battery housing area 4201, a first circuit board housing area 4202, and a second circuit board housing area 4203 can be formed on the bracket 421. The battery housing area 4201 is used to assemble the battery 422. The first circuit board housing area 4202 and the second circuit board housing area 4203 cooperate to assemble the circuit board assembly 423.

[0097] In some embodiments, the battery accommodating area 4201, the first circuit board accommodating area 4202, and the second circuit board accommodating area 4203 may be arranged in pairs at intervals. In some embodiments, the first circuit board accommodating area 4202 and the second circuit board accommodating area 4203 are located on opposite sides of the battery accommodating area 4201. In some embodiments, the battery accommodating area 4201, the first circuit board accommodating area 4202, and the second circuit board accommodating area 4203 may be arranged in the BB direction. In some embodiments, the BB direction is perpendicular to the symmetry plane PL. Of course, the BB direction may not be perpendicular to the symmetry plane PL, but may only intersect it.

[0098] In some embodiments, the bracket 421 is a one-piece molded part, that is, the bracket 421 can be manufactured by a one-piece molding process.

[0099] Referring to Figure 15, the battery 422 can be installed within the battery receiving area 4201. The battery 422 is cylindrical, for example, a square or rectangular column with a square or circular base. The axial direction of the battery 422 is defined as the direction of extension perpendicular to the base of the column. In some embodiments, the battery 422 is cylindrical. In some embodiments, the angle between the axial direction of the battery 422 and the BB direction can be set to greater than or equal to 0° and less than or equal to 30°, thereby effectively improving the space utilization of the bracket 421. In some embodiments, the axial direction of the battery 422 intersects the plane of symmetry PL. This arrangement effectively ensures that, in the wearing state, the axial direction of the battery 422 intersects the horizontal plane of the human body, thereby effectively improving the clearance of the antenna assembly 10 and thus effectively improving the antenna performance of the antenna assembly 10.

[0100] Referring to Figure 15, the circuit board assembly 423 may include a first circuit board 425, a second circuit board 426, and a flexible circuit board 427. The flexible circuit board 427 connects the first circuit board 425 and the second circuit board 426. The circuit boards, such as the first circuit board 425 and the second circuit board 426, may be a plate-like structure for integrated circuit elements in the circuit board assembly 423. The circuit elements may include a main control circuit and sensors, etc. The circuit board assembly 423 may have at least one circuit board to effectively improve the integration of the circuit elements in the earphone 100, thereby effectively improving the space utilization of the earphone 100 while ensuring its functional diversity. The circuit elements on the first circuit board 425 can be electrically connected to the circuit elements on the second circuit board 426 through the flexible circuit board 427 to achieve information interaction between corresponding circuit elements. In some embodiments, the circuit board assembly 423, for example, may have the processing circuit 101 described in the above embodiments. In some scenarios, the first circuit board 425 and / or the second circuit board 426 may have the processing circuit 101 described in the above embodiments.

[0101] In some embodiments, the first circuit board 425 may be disposed within the first circuit board receiving area 4202, and the second circuit board 426 may be disposed within the second circuit board receiving area 4203. This arrangement allows the bracket 421 to provide better physical protection for the first circuit board 425 and the second circuit board 426, effectively protecting the circuit components on the circuit boards and thus effectively reducing the probability of damage to the circuit board assembly 423 during assembly, thereby effectively improving the production yield of the earphone 100. The first circuit board 425 and the second circuit board 426 are respectively isolated to effectively improve the heat dissipation efficiency of the battery 422 and the circuit boards, thereby effectively improving the operational stability of the battery 422 and the circuit components on the circuit boards. In some embodiments, the first circuit board 425, the second circuit board 426, and the battery 422 may be arranged in the BB direction and may be located on opposite sides of the battery 422.

[0102] In some embodiments, the first circuit board 425 and / or the second circuit board 426 are further provided with grounding points to be electrically connected to grounding wires 22, such as the first grounding wire 221 and the second grounding wire 222.

[0103] In some embodiments, the first circuit board 425 and / or the second circuit board 426 are further provided with radio frequency units for transmitting radio frequency signals to connect to the antenna assembly 10.

[0104] In some embodiments, the first circuit board 425 is provided with a radio frequency unit for transmitting radio frequency signals to connect to the antenna assembly 10. The second circuit board 426 is also provided with a grounding point to be electrically connected to a grounding wire 22, such as the first grounding wire 221 or the second grounding wire 222.

[0105] Please refer to Figure 15. The flexible circuit board 427 is also called a flexible connecting plate. The flexible circuit board 427 is attached to the bracket 421. This arrangement allows the bracket 421 to support the flexible circuit board 427, effectively reducing the probability of damage to the flexible circuit board 427, and thus effectively improving the working stability of the circuit board assembly 423.

[0106] In some embodiments, the first circuit board 425 and / or the second circuit board 426 may be flexible circuit boards.

[0107] In some embodiments, the first circuit board 425 and / or the second circuit board 426 may be rigid circuit boards.

[0108] Referring to Figure 15, the antenna assembly 10 is disposed within the accommodating cavity and is connected to the radio frequency unit for transmitting radio frequency signals to enable transmitting or receiving antenna signals. The antenna assembly 10 can be fixed to the bracket 421 as part of the assembly 42, thereby effectively improving the assembly efficiency of the earphone 100.

[0109] The antenna assembly 10 is spaced apart from the battery 422 along the axial direction of the battery 422 by a preset distance. This arrangement can effectively improve the space utilization between the battery 422 and the antenna assembly 10, while also effectively reducing the interference of the battery 422 on the antenna assembly 10, thereby effectively improving the performance of the antenna assembly 10.

[0110] The antenna assembly 10 may include a first antenna 11 and a second antenna 12. The first antenna 11 and the second antenna 12 may be electrically connected to the radio frequency unit respectively to transmit / receive antenna signals separately or simultaneously. This configuration can effectively improve the operating stability and antenna performance of the antenna assembly 10.

[0111] In some embodiments, the first antenna 11 is connected to the radio frequency port of the radio frequency unit, and the second antenna 12 is grounded (or connected to a ground point). The radio frequency unit transmits or receives signals (antenna signals) simultaneously through the first antenna 11 and the second antenna 12. This configuration effectively simplifies the circuit structure between the first antenna 11, the second antenna 12, and the radio frequency unit. Furthermore, after the second antenna 12 is grounded, it can also serve as an antenna stub of the first antenna 11, transmitting or receiving signals simultaneously with the first antenna 11, thereby further improving the antenna performance of the antenna assembly 10. Moreover, after the second antenna 12 is grounded, the current concentrated on the first antenna 11 can be effectively dispersed, thereby preventing the current generated based on the radio frequency signal from being completely concentrated on the first antenna 11, and thus effectively reducing the SAR (Specific Absorption Ratio) value of the antenna assembly 10.

[0112] In some embodiments, the antenna structure of the first antenna 11 is the same as that of the second antenna 12. When the relative positional relationship between the first antenna 11 and the second antenna 12 changes, the first antenna 11 or the second antenna 12, which has a better clearance, can still efficiently perform the antenna function, thereby effectively improving the stability of the antenna assembly 10 and ensuring the consistency of the antenna performance of the antenna assembly 10 when the earphone 100 is switched from one ear to the other.

[0113] In some embodiments, the first antenna 11 and the second antenna 12 are disposed on opposite sides of the battery 422 along the axial direction of the battery 422. This arrangement allows the first antenna 11 and the second antenna 12 to maintain a larger distance from the battery 422, thereby effectively reducing the interference of the battery 422 on the antenna assembly 10 and improving the clearance of the antenna assembly 10.

[0114] In some embodiments, the first antenna 11 is disposed on the side of the first circuit board 425 away from the battery 422 along the axial direction of the battery 422, and the second antenna 12 is disposed on the side of the second circuit board 426 away from the battery 422 along the axial direction of the battery 422. This arrangement of the first circuit board 425 and the second circuit board 426 can effectively separate the first antenna 11 and the second antenna 12 from the battery 422, thereby effectively reducing the interference of the battery 422 on the first antenna 11 and the second antenna 12, and thus effectively improving the working stability and antenna performance of the antenna assembly 10.

[0115] In some embodiments, the first antenna 11 may be disposed on the first circuit board 425, and the second antenna 12 may be disposed on the second circuit board 426.

[0116] Referring to Figure 15, the capacitive detection component 20 can be disposed on the bracket 421 and can be part of the assembly 42 to effectively improve the assembly efficiency of the earphone 100. In some embodiments, the capacitive detection component 20 can be located between the first circuit board 425 and the second circuit board 426. In some embodiments, the capacitive detection component 20 can be located between the first antenna 11 and the second antenna 12. In some embodiments, the capacitive detection component 20 can be disposed around at least a portion of the peripheral sidewall of the battery 422. When the earphone 100 is worn, the capacitive detection component 20 is at least partially located on the side of the peripheral sidewall of the battery 422 closest to the user's skin.

[0117] It is understandable that, when the capacitive detection component 20 can realize the wearing detection function of the earphone 100, the positional relationship and cooperation relationship with other structures within the earphone 100 may not be limited to the embodiments listed herein, but may also be others.

[0118] For example, in assembly 42, the positional relationship and cooperation between capacitive detection component 20 and antenna assembly 10, bracket 421, battery 422 or circuit board assembly 423 may not be limited to the embodiments listed herein, but may be others.

[0119] For example, the positional relationship and mating relationship between the capacitive detection component 20 and the first housing component 41 or assembly 42 in the contact portion 40 may not be limited to the embodiments listed herein, but may be others.

[0120] For example, in the earphone 100, the positional relationship and cooperation relationship between the capacitive detection component 20 and the sound-emitting part 30, the contact part 40 or the ear hook part 50 may not be limited to the embodiments listed herein, but may be others.

[0121] In some embodiments, the capacitive detection component 20 may also be disposed at other locations on the earphone 100, such as the abutment portion 40 or the ear hook portion 50. In some embodiments, the capacitive detection component 20 may also be disposed at other locations on the abutment portion 40, such as the first housing assembly 41.

[0122] In Figure 15, the capacitive detection component 20 is electrically connected to the flexible circuit board 427 to achieve electrical connection with the first circuit board 425 and / or the second circuit board 426.

[0123] Please refer to Figure 16, which is a schematic diagram of the structure of the first circuit board 425, the second circuit board 426, and the capacitive detection component 20 in some embodiments of the embodiment shown in Figure 15. In this embodiment, the capacitive detection component 20 may not be connected to the first circuit board 425 via the flexible circuit board 427. The capacitive detection component 20 has a connection structure on the side facing the first circuit board 425 for electrical connection with the first circuit board 425.

[0124] Referring to Figure 14, the sound-emitting part 30 includes a second housing assembly 31 and a sound-emitting component (not shown) installed within the second housing assembly 31. The second housing assembly 31 can be connected to the ear hook part 50. The sound-emitting component, as the main structure of the sound-emitting part 30, enables the playback of sound signals to the wearer, and can be a sound-emitting structure well known in the art, which will not be described in detail.

[0125] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. An earphone, wherein, The earphone includes an antenna assembly and a capacitive detection assembly. The capacitive detection assembly is located within the radiation range of the antenna assembly and is configured to generate corresponding electrical signals based on whether the user is wearing the earphone or whether the user performs a touch action. The capacitive detection component includes an electrode area and a grounding wire. The electrode area is used to generate the electrical signal, and the grounding wire is arranged around the electrode area and spaced apart from it.

2. The headphones according to claim 1, wherein, The electrode region includes a detection electrode layer and a reference electrode layer stacked together. The grounding wire includes a first grounding wire and a second grounding wire. The first grounding wire is disposed in the same layer as the detection electrode layer and is arranged around the detection electrode layer. The second grounding wire is disposed in the same layer as the reference electrode layer and is arranged around the reference electrode layer.

3. The headphones according to claim 2, wherein, The distance between the detection electrode layer and the first grounding wire and / or the distance between the reference electrode layer and the second grounding wire is greater than or equal to 0.2 mm.

4. The headphones according to claim 2 or 3, wherein, The wire width of the first grounding wire and / or the wire width of the second grounding wire are between 0.1mm and 0.3mm.

5. The headphones according to claim 2 or 3, wherein, The reference electrode layer includes grid lines or serpentine lines, and / or the detection electrode layer includes grid lines or serpentine lines.

6. The headphones according to claim 2 or 3, wherein, The reference electrode layer includes a serpentine line, which includes multiple main extensions and multiple connecting parts. The multiple main extensions are arranged side by side at intervals, and the multiple connecting parts connect the multiple main extensions in series. The line width of the main extension is less than or equal to 0.3 mm, and the spacing between two adjacent main extensions is less than or equal to 0.5 mm.

7. The headphones according to claim 2 or 3, wherein, The reference electrode layer includes a serpentine line, and the reference electrode layer includes a first region and a second region. The serpentine line includes multiple main extensions and multiple connecting parts. The multiple main extensions are arranged side by side at intervals. The multiple connecting parts connect the multiple main extensions in series. The multiple main extensions are arranged in the first region and the second region. The spacing between two adjacent main extensions in the first region is smaller than the spacing between two adjacent main extensions in the second region.

8. The headphones according to claim 7, wherein, The earphone also includes a processing circuit. The reference electrode layer has a terminal, which is electrically connected to the processing circuit. The terminal is connected to the main extension in the second region via the main extension in the first region.

9. The headphones according to claim 2 or 3, wherein, The effective area of ​​the detection electrode layer is larger than the effective area of ​​the reference electrode layer. The capacitive detection assembly also includes a first terminal and a second terminal disposed on the same layer as the reference electrode layer. The reference electrode layer is electrically connected to the first terminal on the same layer. The detection electrode layer and the second terminal are electrically connected between layers. The first grounding wire and the second grounding wire are electrically connected between layers and grounded through the second grounding wire. The first grounding wire is arranged in a closed loop around the detection electrode layer. The second grounding wire is provided with a notch for the first terminal and the second terminal to be led out.

10. The headphones according to claim 9, wherein, The first grounding wire and the second grounding wire are electrically connected between layers through a plurality of connection points spaced apart along the circumference.

11. The headphones according to any one of claims 1-3, wherein, The earphone includes a battery arranged in a cylindrical shape. The antenna assembly includes a first antenna and a second antenna spaced apart at both ends of the battery along the axial direction of the battery. The capacitive detection component is located in the spaced area between the first antenna and the second antenna. When the user is wearing the earphone, the capacitive detection component is at least partially located on the side of the peripheral wall of the battery close to the user's skin. The reference electrode layer is located between the detection electrode layer and the battery.

12. The headphones according to claim 11, wherein, When the user is wearing the headphones, the axis of the battery is positioned intersecting the horizontal plane of the human body.

13. The headphones according to claim 11, wherein, The earphone includes a first housing assembly, a second housing assembly, an ear hook, and a sound-generating assembly. The antenna assembly, the capacitive detection assembly, and the battery are disposed within the first housing assembly, and the sound-generating assembly is disposed within the second housing assembly. The ear hook connects the first housing assembly and the second housing assembly. When the user wears the earphone, the first housing assembly and the second housing assembly are clamped on both sides of the auricle, and the second housing assembly is located within the concha cavity. The ear hook has a symmetrical plane arranged along the length direction of the ear hook, and the axial direction of the battery intersects the symmetrical plane.

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