Ear clip type earphone

Abstract

The ear clip type earphone comprises a first earphone part, a second earphone part, a connecting bridge and a tuning module, the first earphone part comprises a first earphone shell, a main control board and an antenna body, the main control board and the antenna body are arranged in the first earphone shell, the antenna body is electrically connected with the main control board, and the main control board is electrically connected with the antenna body; the connecting bridge comprises a shell and an electric connecting piece arranged in the shell, the shell comprises a first shell and a second shell which are rotationally connected, the first shell is connected with the first earphone shell, and the second shell is connected with the second earphone part; the electric connecting piece comprises a first connecting section and a second connecting section which are connected with each other, and the first connecting section is electrically connected with the main control board; the electric connecting piece forms an antenna extension ground, and the antenna main body and the antenna extension ground form an antenna structure; the tuning module is electrically connected with the antenna structure and electrically connected with the main control board, and the tuning module is used for ensuring that the return loss of the antenna structure is smaller than a preset value when the included angle between the second shell and the first shell changes.

Description

Technical Field

[0001] The present application relates to the technical field of earphones, and in particular to an ear-clip earphone. Background Art

[0002] With the widespread application of TWS (True Wireless Stereo) technology in the field of Bluetooth headsets, the TWS Bluetooth headset market is in a continuously hot trend, and users' experience requirements for TWS Bluetooth headsets are becoming higher and higher.

[0003] In the related technical field, when users wear ear clip headphones, different users may have different wearing tightness requirements, which can be achieved by adjusting the connecting bridge. However, adjusting the connecting bridge will cause the return loss of the antenna structure to be larger, making the radiation performance of the antenna structure worse, resulting in worse antenna efficiency. Utility Model Content

[0004] An embodiment of the present application provides an ear-clip earphone, which is designed to enable a tuning module to adjust the return loss of the antenna structure when the angle between the second shell and the first shell changes, so as to ensure that the return loss of the antenna structure is less than a preset value, thereby improving the radiation performance of the antenna structure and enhancing the user experience.

[0005] An embodiment of the present application provides an ear-clip earphone, comprising a first earphone part, a second earphone part, a connecting bridge and a tuning module, wherein the first earphone part comprises a first earphone shell, a main control board and an antenna body arranged in the first earphone shell, and the antenna body is electrically connected to the main control board; the second earphone part is opposite to the first earphone part and has a sound outlet; the connecting bridge comprises an outer shell and an electrical connector arranged in the outer shell, the outer shell comprises a first shell and a second shell that are rotatably connected, the first shell is connected to the first earphone shell, and the second shell is connected to the second earphone part; the electrical connector comprises a first connecting section and a second connecting section that are connected to each other, the first connecting section is passed through the first shell and is electrically connected to the main control board, and the second connecting section is passed through the second shell; the electrical connector constitutes an antenna extension, and the antenna body and the antenna extension constitute an antenna structure; the tuning module is electrically connected to the antenna structure and to the main control board, and the tuning module is used to adjust the return loss of the antenna structure when the angle between the second shell and the first shell changes, so as to ensure that the return loss of the antenna structure is less than a preset value.

[0006] Based on the ear-clip earphones of the present application, when the angle between the second shell and the first shell changes, the main control board controls the on and off of the tuning circuit to ensure that the return loss of the antenna structure is less than a preset value, thereby improving the radiation performance of the antenna, and then adapting to the usage needs of different users to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0008] Figure 1 This is a schematic structural diagram of an ear clip-on headset according to an embodiment of the present application;

[0009] Figure 2 This is a schematic diagram of the internal structure of an ear clip-on headset in one embodiment of the present application;

[0010] Figure 3 This is a structural diagram of the connection between the main control board and the antenna structure in one embodiment of the present application;

[0011] Figure 4 A schematic diagram of a curve showing return loss and frequency of an antenna in an embodiment of the present application;

[0012] Figure 5 This is a structural diagram of the connection between the main control board and the antenna structure in another embodiment of the present application;

[0013] Figure 6 This is a structural diagram of the connection between the main control board and the antenna structure in another embodiment of the present application;

[0014] Figure 7 This is a structural diagram of the connection between the main control board and the antenna structure in another embodiment of the present application.

[0015] Explanation of the accompanying drawings: 1. Ear-clip earphones; 11. First earphone part; 11A. First earphone shell; 111. Main control board; 111A. Feeding point; 111B. Grounding point; 112. Battery; 113. Charging port; 12. Second earphone part; 12A. Second earphone shell; 121. Speaker; 13. Connecting bridge; 13A. Shell; 13A1. First shell; 13A2. Second shell; 131. Electrical connector; 1311. First connecting section; 1312. Second connecting section; 132. Rotating shaft structure; 1321. First rotating member; 1322. Second rotating member; 14. Antenna structure; 141. Antenna body; 15. Tuning module; 151. Tuning submodule; 1511. Tuning circuit; 16. Detection device; 161. Rotation detection structure; Q1. Switching element; T1. Tuning element. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0017] Please refer to Figure 1 and Figure 2 An embodiment of the present application provides an ear-clip earphone 1, comprising a first earphone portion 11, a second earphone portion 12, and a connecting bridge 13.

[0018] The first earphone unit 11 includes a first earphone housing 11A, a battery 112 disposed within the first earphone housing 11A, and a main control board 111. The battery 112 is electrically connected to the main control board 111 to provide power to the main control board 111. The first earphone unit 11 also has a charging port 113, which is electrically connected to the main control board 111 and the battery 112. The charging port 113 is connected to the first earphone housing 11A and is exposed to the outside, allowing a charger to be connected to the charging port 113 to charge the earphone 1. The first earphone unit 11 may also include a wireless communication module, which is electrically connected to the main control board 111 to establish a wireless communication connection with an external device via the wireless communication module, thereby enabling the earphone 1 to receive audio signals and control signals from the external device.

[0019] Exemplarily, the charging port 113 includes at least one of a Micro USB port, a USB Type-C port, or a Lightning port. In other embodiments, the charging port 113 may also be a metal contact. External devices include, but are not limited to, mobile phones, headphones, tablet computers, and smart watches.

[0020] The second earphone unit 12 is electrically connected to the main control board 111. The second earphone unit 12 includes a second earphone shell 12A and a speaker 121 disposed in the second earphone shell 12A. The second earphone shell 12A is provided with a sound outlet so that the sound emitted by the speaker 121 can be transmitted outward through the sound outlet.

[0021] Exemplarily, the first earphone housing 11A and the second earphone housing 12A can be made of metal or plastic. Specifically, the first earphone housing 11A and the second earphone housing 12A can be made of plastic to insulate them, thereby reducing the risk of electric shock to the user. Furthermore, since plastic is lightweight, the first earphone housing 11A and the second earphone housing 12A are lightweight, thereby reducing the overall weight of the ear clip earphone 1. This reduces the force exerted on the user's ears when the ear clip earphone 1 is worn, thereby improving wearing comfort. Specifically, the first earphone housing 11A and the second earphone housing 12A can be integrally injection molded, thereby providing them with high structural strength, making them less susceptible to damage and protecting other components within the first earphone housing 11A and the second earphone housing 12A, thereby reducing the probability of damage to other components and thereby extending the service life of the ear clip earphone 1. It is understandable that the first earphone shell 11A and the second earphone shell 12A can also be made of other skin-friendly materials to improve the wearing comfort of the user.

[0022] The connecting bridge 13 includes a housing 13A, which includes a first housing 13A1 and a second housing 13A2 that are rotatably connected. The first housing 13A1 is connected to the first earphone housing 11A, and the second housing 13A2 is connected to the second earphone housing 12A. This allows the second earphone portion 12 to move relative to the first earphone portion 11. This allows the second earphone portion 12 to clamp together with the first earphone portion 11 to the user's ear, reducing the probability of the ear clip-on earphone 1 being detached from the user's ear and, in turn, the probability of the ear clip-on earphone 1 falling. Furthermore, because the second earphone portion 12 can move relative to the first earphone portion 11, the ear clip-on earphone 1 can adapt to the ear shape, thickness, and wearing tightness requirements of different users. It is understood that the material of the housing 13A can be flexible to facilitate deformation of the housing 13A and improve wearing comfort. In other embodiments, the housing 13A can also be made of hard plastic.

[0023] It can be understood that the first earphone shell 11A and the first shell 13A1, the second earphone shell 12A and the second shell 13A2 can be molded into one piece through a two-color injection molding process to improve the overall connection tightness of the first earphone shell 11A, the second earphone shell 12A and the outer shell 13A.

[0024] Please refer to Figure 1 and Figure 2In one embodiment, the ear clip-on headset 1 further includes an antenna structure 14, which includes an antenna body 141. The antenna body 141 is electrically connected to the main control board 111 to implement the signal transmission and reception function between the ear clip-on headset 1 and an external device.

[0025] Please refer to Figure 1 and Figure 2 Furthermore, in order to improve the performance of the antenna structure 14, the connecting bridge 13 also includes an electrical connector 131, which is arranged in the shell 13A. The electrical connector 131 includes a first connecting section 1311 and a second connecting section 1312. The first connecting section 1311 is passed through the first shell 13A1, and the second connecting section 1312 is passed through the second shell 13A2. The second connecting section 1312 is electrically connected to the first connecting section 1311, and one of the first connecting section 1311 and the second connecting section 1312 is electrically connected to the grounding point of the main control board 111, so that the electrical connector 131 constitutes an antenna extension ground; the antenna body 141 and the antenna extension ground constitute the antenna structure 14, thereby improving the radiation performance of the antenna structure 14.

[0026] In order to facilitate the rotational connection between the first shell 13A1 and the second shell 13A2, the connecting bridge 13 also includes a rotating shaft structure 132. The first shell 13A1 and the second shell 13A2 are rotationally connected through the rotating shaft structure 132, and the rotating shaft structure 132 is electrically connected to the first connecting section 1311 and the second connecting section 1312. The rotating shaft structure 132 and the electrical connector 131 together constitute an antenna extension to improve the radiation performance of the antenna structure 14.

[0027] Furthermore, due to the different ear shapes, thicknesses and wearing tightness requirements of users, the angles between the first shell 13A1 and the second shell 13A2 will be different, causing the effective length of the ground extension line to change, thereby causing the return loss of the antenna structure 14 to be greater than the preset value, resulting in lower radiation efficiency of the antenna structure 14.

[0028] Please refer to Figure 1-Figure 3 Based on this, the ear-clip earphone 1 also includes a tuning module 15, which is electrically connected to the antenna structure 14 and to the main control board 111. The main control board 111 controls the on and off of the tuning module 15, so that when the angle between the second shell 13A2 and the first shell 13A1 changes, the return loss of the antenna structure 14 is less than a preset value, thereby improving the radiation performance of the antenna structure 14, and then adapting to the usage needs of different users to improve the user experience.

[0029] For example, the angle at which the second housing 13A2 moves relative to the first housing 13A1 can be between 0° and 40°. To reduce structural complexity and program processing difficulty, a specific angle value can be selected for key value detection. For example, the initial angle between the second housing 13A2 and the first housing 13A1 is set to 0°, and the second earphone portion 12 is moved counterclockwise away from the first earphone portion 11 so that the second earphone portion 12 drives the second housing 13A2 to move. This can cause the second housing 13A2 to rotate 10°, 20°, and 30° relative to the first housing 13A1.

[0030] In the above process, if the tuning module 15 is not provided and the second housing 13A2 is rotated 0° relative to the first housing 13A1, the return loss and frequency curve of the antenna structure 14 is: Figure 4 The second housing 13A2 is rotated 10° compared to the first housing 13A1, and the return loss and frequency curve of the antenna structure 14 is Figure 4 The second housing 13A2 is rotated 20° compared to the first housing 13A1, and the return loss and frequency curve of the antenna structure 14 is Figure 4 The second housing 13A2 is rotated 30° compared to the first housing 13A1, and the return loss and frequency curve of the antenna structure 14 is Figure 4 The thin double-dotted curve in .

[0031] If the main control board 111 controls the operation of the tuning module 15, that is, the main control board 111 can control the conduction state of the tuning module 15 according to the rotation angle of the second shell 13A2 relative to the first shell 13A1; when the second shell 13A2 is rotated 20 degrees relative to the first shell 13A1, the return loss and frequency curve of the antenna structure 14 is Figure 4 When the second housing 13A2 is rotated 30° compared to the first housing 13A1, the return loss and frequency curve of the antenna structure 14 is Figure 4 The thick double-dotted curve in .

[0032] By comparing the two, it can be seen that in the frequency range of 2.4005GHz to 2.4802GHz, the return losses of rotations of 0°, 10°, 20° and 30° are all below -10.103dB, so that the return loss of the antenna structure 14 is less than the preset value, thereby improving the radiation efficiency of the antenna structure 14, so as to improve the radiation performance of the antenna structure 14, and then can adapt to the usage needs of different users to improve the user experience.

[0033] Of course, in other embodiments, the angle at which the second housing 13A2 moves relative to the first housing 13A1 can also be within other ranges, and the specific angle value can also be selected based on design requirements. In the embodiment of the present application, there is no specific limitation on the range of angles at which the second housing 13A2 moves relative to the first housing 13A1, nor on the specific angle value.

[0034] It will be appreciated that in the embodiment of the present application, -10.103 dB is used as the preset value for determining the magnitude of return loss. When the return loss of the antenna structure 14 is less than the preset value of -10.103 dB, the radiation efficiency of the antenna structure 14 is high; when the return loss of the antenna structure 14 is greater than or equal to the preset value of -10.103 dB, the radiation efficiency of the antenna structure 14 is low. In other embodiments, other preset values for determining the magnitude of return loss may also be selected. In the embodiment of the present application, the selection of the preset value for determining the magnitude of return loss is not limited.

[0035] Please refer to Figure 1-Figure 3 In one embodiment, the tuning module 15 includes multiple tuning sub-modules 151, the controlled end of the tuning sub-module 151 is electrically connected to the main control board 111, the first end of the tuning sub-module 151 is electrically connected to the antenna structure 14, and the second end of at least one tuning sub-module 151 is electrically connected to the main control board 111, so that the tuning sub-module 151 can be controlled to be turned on or off by the main control board 111 to improve the radiation performance of the antenna structure 14.

[0036] Please refer to Figure 2-Figure 5 In one embodiment, the tuning module 15 may include a first tuning submodule, the first end of which is electrically connected to the antenna body 141, and the second end of at least one of the first tuning submodules is electrically connected to the feed point 111A of the main control board 111. The main control board 111 can control the on and off of the first tuning submodule to tune the antenna body 141 so that the return loss of the antenna body 141 is less than a preset value, thereby improving the radiation performance of the antenna structure 14 and adapting to the usage needs of different users to enhance the user experience. At this time, the end of the first connecting section 1311 away from the hinge structure 132 is electrically connected to the ground point 111B of the main control board 111.

[0037] Please refer to Figure 2 and Figure 3In another embodiment, the tuning module 15 may include a second tuning submodule. The first end of the second tuning submodule is electrically connected to the end of the first connecting section 1311 away from the rotating shaft structure 132, and the second end of the second tuning submodule is electrically connected to the ground point 111B of the main control board 111. The main control board 111 can control the on and off of the second tuning submodule to tune the ground extension line so that the return loss of the antenna structure 14 is less than a preset value, thereby improving the radiation performance of the antenna structure 14 and adapting to the usage needs of different users to enhance the user experience. In this case, the antenna body 141 is electrically connected to the ground point 111A of the main control board 111.

[0038] Please refer to Figure 2 、 Figure 3 and Figure 5 It can be understood that the tuning module 15 may include a first tuning submodule and a second tuning submodule, the first end of the first tuning submodule is electrically connected to the antenna body 141, and the second end of at least one first tuning submodule is electrically connected to the feeding point 111A of the main control board 111; the first end of the second tuning submodule is electrically connected to the end of the first connecting section 1311 away from the rotating shaft structure 132, and the second end of the second tuning submodule is electrically connected to the grounding point 111B of the main control board 111. The main control board 111 can control the on and off of the first tuning submodule and the second tuning submodule to tune the antenna structure 14 so that the return loss of the antenna structure 14 is less than a preset value, thereby improving the radiation performance of the antenna structure 14.

[0039] It is understandable that there is no specific limitation on the number of tuning submodules 151 connected between the antenna body 141 and the main control board 111 and the number of tuning submodules 151 connected between the first connecting section 1311 and the main control board 111 .

[0040] Please refer to Figure 2 and Figure 6 In order to further improve the tuning capability of the ground extension line, the tuning module 15 may further include a third tuning submodule, a first end of the third tuning submodule being electrically connected to the first connecting section 1311, a second end of the third tuning submodule being grounded, and a controlled end of the second tuning submodule and a controlled end of the second tuning submodule being electrically connected to the main control board 111. Thus, when the effective length of the ground extension line changes, the main control board 111 can control the on / off states of the second tuning submodule and the third tuning submodule, thereby improving the tuning capability of the antenna structure 14 to adapt to the usage needs of different users.

[0041] Please refer to Figure 2 and Figure 7In one embodiment, each tuning sub-module 151 includes multiple parallel tuning circuits 1511, and the controlled end of each tuning circuit 1511 is electrically connected to the controlled end of the tuning sub-module 152, so that the main control board 111 can control the corresponding tuning circuit 1511 to be turned on, so that the corresponding tuning circuit 1511 is connected to the antenna structure 14, so that the antenna structure 14 can be tuned so that the return loss of the antenna structure 14 is less than a preset value, thereby improving the radiation performance of the antenna structure 14.

[0042] Please refer to Figure 2 and Figure 7 In one embodiment, each tuning circuit 1511 includes a switching element Q1 and a tuning element T1. The switching element Q1 and the tuning element T1 are connected in series between the first end and the second end of the tuning submodule 151. The controlled end of the switching element Q1 is electrically connected to the controlled end of the tuning submodule 151. When the angle between the first housing 13A1 and the second housing 13A2 changes, the main control board 111 can control the switching element Q1 in the tuning circuit 1511 to conduct, thereby connecting the corresponding tuning element T1 to the antenna structure 14, thereby tuning the antenna structure 14 so that the return loss of the antenna structure 14 is less than a preset value, thereby improving the radiation performance of the antenna structure 14.

[0043] It is understandable that the switching element Q1 includes at least one of a bipolar junction transistor (BJT), a metal-oxide-semiconductor (MOS) and an electromagnetic relay. In the embodiment of the present application, the specific form of the switching element Q1 is not limited.

[0044] It is understood that the tuning element T1 includes at least one of a wire, a capacitor, a resistor, and an inductor. In other embodiments, the tuning element T1 may also be in other forms. In the embodiments of the present application, the specific form of the tuning element T1 is not limited.

[0045] It will be appreciated that, in another embodiment, the tuning submodule 151 further includes a switch (not shown), a controlled end of the switch being electrically connected to the controlled end of the tuning submodule 151, an input end of the switch being electrically connected to the first end of the tuning submodule 151, and multiple output ends of the switch being electrically connected to multiple tuning circuits 1511, and electrically connected to the second end of the tuning submodule 151 via the multiple tuning circuits 1511. Each tuning circuit 1511 includes a tuning element T1. When the angle between the first housing 13A1 and the second housing 13A2 changes, the main control board 111 can control the switch to conduct the corresponding tuning circuit 1511, thereby connecting the corresponding tuning circuit 1511 to the antenna structure 14, thereby tuning the antenna structure 14 so that the return loss of the antenna structure 14 is less than a preset value, thereby improving the radiation performance of the antenna structure 14.

[0046] It is understandable that the switch can be a multi-pole multi-position switch. In other embodiments, the switch can also be other forms.

[0047] Please refer to Figure 2 In one embodiment, the ear-clip headphone 1 further includes a detection device 16, which is electrically connected to the main control board 111 so that the main control board 111 obtains detection information, and the main control board 111 controls the on and off of the tuning circuit 1511 according to the detection information; wherein the detection information includes at least one of information on the angle between the first shell 13A1 and the second shell 13A2 and information on the return loss of the antenna body 141.

[0048] In the embodiment of the present application, the rotating shaft structure 132 further includes a first rotating member 1321 and a second rotating member 1322. The first rotating member 1321 is connected to the first shell 13A1 and is electrically connected to the first connecting section 1311. The second rotating member 1322 is connected to the second shell 13A2 and is electrically connected to the second connecting section 1312. The second rotating member 1322 is rotationally connected to the first rotating member 1321 and is electrically connected to the first rotating member 1321. The detection device 16 includes a rotation detection structure 161. The rotation detection structure 161 is electrically connected to the main control board 111 and is connected to the first rotating member 1321 and the second rotating member 1322. 2, the main control board 111 can obtain the rotation parameters between the first rotating member 1321 and the second rotating member 1322 via the rotation detection structure 161 to obtain the angle information between the first shell 13A1 and the second shell 13A2, so that the main control board 111 can control the on and off of the corresponding tuning circuit 1511 according to the angle information, so that when the angle between the second shell 13A2 and the first shell 13A1 changes, the return loss of the antenna structure 14 is less than the preset value, thereby improving the radiation performance of the antenna structure 14, and then adapting to the usage needs of different users to improve the user experience.

[0049] Please refer to Figure 2 Exemplarily, the rotation detection structure 161 includes at least one of an electrically conductive mechanical structure, a magnetic detection structure, and an optical detection structure. In other embodiments, the rotation detection structure 161 may also be in other forms.

[0050] Exemplarily, the electrically conductive mechanical structure may include multiple mechanical switches and triggers. The multiple mechanical switches are disposed on one of the first rotating member 1321 and the second rotating member 1322 and are electrically connected to the main control board 111. The trigger is disposed on the other of the first rotating member 1321 and the second rotating member 1322. When the trigger is electrically connected to the corresponding mechanical switch, the mechanical switch is turned on. When the second housing 13A2 rotates relative to the first housing 13A1, the second rotating member 1322 moves relative to the first rotating member 1321, causing the mechanical switches to turn on in sequence. This allows the main control board 111 to obtain the rotation parameters of the first housing 13A1 and the second housing 13A2, and thus obtain information about the angle between the first housing 13A1 and the second housing 13A2.

[0051] The magnetic detection structure may include a magnetic member and a magnetic sensing chip. The magnetic member is disposed on one of the first rotating member 1321 and the second rotating member 1322, and the magnetic sensing chip is disposed on the other of the first rotating member 1321 and the second rotating member 1322 and is electrically connected to the main control board 111. When the first rotating member 1321 and the second rotating member 1322 rotate relative to each other, the position of the magnetic sensing chip within the magnetic member's magnetic field changes, allowing the magnetic sensing chip to send a changing electrical signal to the main control board 111. The main control board 111 can obtain the rotation parameters of the first shell 13A1 and the second shell 13A2 based on the changing electrical signal, and further obtain information about the angle between the first shell 13A1 and the second shell 13A2.

[0052] The light detection structure may include a reflector and a light sensing chip. The reflector is arranged on one of the first rotating member 1321 and the second rotating member 1322. Different positions of the reflector have different reflective rates. The light sensing chip is arranged on the other of the first rotating member 1321 and the second rotating member 1322 and is electrically connected to the main control board 111. The light sensing chip has a light-emitting element and a photosensitive element. The photosensitive element is used to receive the light signal emitted by the light-emitting element and reflected by the reflector, and send an electrical signal to the main control board 111. The relative rotation of the first rotating member 1321 and the second rotating member 1322 will cause the light signal emitted by the light-emitting element and reflected by the reflector received by the photosensitive element to change, so that the electrical signal sent by the photosensitive element to the main control board 111 changes, so that the main control board 111 can obtain the rotation parameters of the first shell 13A1 and the second shell 13A2 according to the changed electrical signal, and then obtain the angle information between the first shell 13A1 and the second shell 13A2. It is understood that the reflective element has at least one of a light and dark marking area, an area with varying polishing levels, pits, and a raised area.

[0053] It can be understood that the surfaces of the first rotating member 1321 and the second rotating member 1322 can also be processed to form areas with different reflectivity, so that the light signals received by the photosensitive element are different, so that the photosensitive element outputs different electrical signals, thereby allowing the main control board 111 to obtain the angle information between the first shell 13A1 and the second shell 13A2.

[0054] In one embodiment, the communication connection method between the detection device 16 and the main control board 111 includes at least one of wired communication, WLAN (Wireless Local Area Network), RFID (Radio Frequency Identification), NFC (Near Field Communication), ZigBee, Bluetooth and infrared, so that the main control board 111 can obtain the detection information. In other embodiments, the communication connection method between the detection device 16 and the main control board 111 can also be other forms. In the embodiment of the present application, the communication connection method between the detection device 16 and the main control board 111 is not limited.

[0055] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0056] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An ear clip-on headset, characterized in that: include: The first earphone portion includes a first earphone shell, a main control board and an antenna body disposed in the first earphone shell, wherein the antenna body is electrically connected to the main control board; a second earphone portion, opposite to the first earphone portion and having a sound outlet; The connecting bridge includes a housing and an electrical connector disposed within the housing, wherein the housing includes a first housing and a second housing that are rotatably connected, the first housing being connected to the first earphone housing, and the second housing being connected to the second earphone portion; the electrical connector includes a first connecting section and a second connecting section that are connected to each other, the first connecting section being disposed through the first housing and electrically connected to the main control board, and the second connecting section being disposed through the second housing; the electrical connector constitutes an antenna extension, and the antenna body and the antenna extension constitute an antenna structure; A tuning module is electrically connected to the antenna structure and to the main control board. The tuning module is used to adjust the return loss of the antenna structure when the angle between the second shell and the first shell changes to ensure that the return loss of the antenna structure is less than a preset value.

2. The ear clip-on headphone according to claim 1, wherein: The connecting bridge further comprises: A rotating shaft structure, wherein the first shell and the second shell are rotatably connected via the rotating shaft structure, the rotating shaft structure is electrically connected to the electrical connector, and the rotating shaft structure and the electrical connector together constitute an antenna extension.

3. The ear clip-on headphone according to claim 1, wherein: The tuning module includes multiple tuning sub-modules, the controlled end of the tuning sub-module is electrically connected to the main control board, the first end of the tuning sub-module is electrically connected to the antenna structure, and the second end of at least one tuning sub-module is electrically connected to the main control board.

4. The ear clip-on headphone according to claim 3, wherein: The tuning module includes a first tuning submodule, a first end of the first tuning submodule is electrically connected to the antenna body, and a second end of at least one of the first tuning submodules is electrically connected to a feeding point of the main control board; and / or, The tuning module includes a second tuning submodule, a first end of the second tuning submodule is electrically connected to the first connecting section, and a second end of the second tuning submodule is electrically connected to a ground point of the main control board.

5. The ear clip-on headphone according to claim 3, wherein: The first end of the tuning submodule is electrically connected to the first connection section, the second end of at least one of the tuning submodules is electrically connected to the grounding point of the main control board, and the second ends of the remaining tuning submodules are grounded; The antenna body is electrically connected to the feeding point of the main control board.

6. The ear clip-on headphone according to claim 3, wherein: Each of the tuning sub-modules includes a plurality of tuning circuits connected in parallel, and a controlled end of each of the tuning circuits is electrically connected to a controlled end of the tuning sub-module.

7. The ear clip-on headphone according to claim 6, wherein: Each of the tuning circuits includes a switch element and a tuning element, which are connected in series between the first end of the tuning submodule and the second end of the tuning submodule, and the controlled end of the switch element is electrically connected to the controlled end of the tuning circuit.

8. The ear clip-on headphone according to claim 7, wherein: The tuning element includes at least one of a wire, a capacitor, a resistor, and an inductor.

9. The ear clip-on headphone according to any one of claims 1 to 8, wherein: Also includes: a detection device electrically connected to the main control board so that the main control board obtains detection information, and the main control board is used to control the on and off of the tuning module according to the detection information; The detection information includes at least one of information about an angle between the first shell and the second shell and information about a return loss of the antenna structure.

10. The ear clip-on headphone according to claim 9, wherein: The connecting bridge further includes a rotating shaft structure, and the first shell and the second shell are rotatably connected via the rotating shaft structure; The rotating shaft structure comprises: a first rotating member connected to the first housing and electrically connected to the first connecting section; a second rotating member connected to the second housing, electrically connected to the second connecting section, electrically connected to the first rotating member, and rotationally connected to the first rotating member; and the rotating shaft structure and the electrical connector together constitute an antenna extension; The detection device comprises: A rotation detection structure is electrically connected to the main control board and connected to at least one of the first rotating member and the second rotating member, and is used to detect a rotation parameter of the second rotating member relative to the first rotating member and to send the rotation parameter to the main control board.

11. The ear clip-on headphone according to claim 10, wherein: The rotation detection structure includes at least one of an electrically conductive mechanical structure, a magnetic detection structure, and an optical detection structure.

Images