Wireless earphone

Abstract

The embodiment of the invention provides a wireless earphone, which comprises a first part, a connecting beam and a second part, and is characterized in that the connecting beam is connected between the first part and the second part; the second part comprises a radio frequency module, a switch, a first antenna, a second antenna and a ground structure; the switch is electrically connected with the radio frequency module and is used for being in a first state, so that the first antenna is electrically connected with the radio frequency module through the switch, and the second antenna is disconnected from the radio frequency module; the switch is also used for being in a second state, so that the second antenna is electrically connected with the radio frequency module through the switch, and the first antenna is disconnected from the radio frequency module; the ground structure is electrically connected with the radio frequency module, the first antenna and the second antenna; one part of the ground structure and the first antenna are located on one side of the connecting beam, and the other part of the ground structure and the second antenna are located on the other side of the connecting beam. According to the scheme, the natural performance difference generated when a single earphone is switched and worn between the left ear and the right ear can be avoided, and the antenna performance and the connection experience of the earphone are improved.

Description

Technical Field

[0001] The present application relates to the technical field of wearable devices, and in particular to a wireless headset. Background Art

[0002] There is a type of wireless headset on the market, whose left earphone has the same structure as the right earphone, and a single earphone can be worn without distinguishing between left and right ears. This allows manufacturers to produce according to the structural plan of a single earphone to reduce costs. Figure 1 As shown in the figure, if a single earphone is removed from the left ear and worn on the right ear, it is equivalent to rotating the earphone 180° right in the picture.

[0003] However, a single earphone has only one antenna. When the earphone is worn between the left and right ears, the position of the antenna and the feed point relative to the ear will change, resulting in different antenna performance when the earphone is in the left and right ears, for example Figure 2 The difference in antenna directional patterns is shown. This affects the antenna performance and connection experience of the headset. Summary of the invention

[0004] The embodiment of the present application provides a wireless headset that can avoid the natural performance differences caused when a single headset is switched between the left and right ears, thereby improving the antenna performance and connection experience of the headset.

[0005] In the first aspect, an embodiment of the present application provides a wireless headset, comprising a first part, a connecting beam and a second part, wherein the connecting beam is connected between the first part and the second part; the second part comprises a radio frequency module, a switch, a first antenna, a second antenna and a ground structure; the switch is electrically connected to the radio frequency module, and the switch is used to be in a first state, so that the first antenna is electrically connected to the radio frequency module through the switch, and the second antenna is disconnected from the radio frequency module; the switch is also used to be in a second state, so that the second antenna is electrically connected to the radio frequency module through the switch, and the first antenna is disconnected from the radio frequency module; the ground structure is electrically connected to the radio frequency module, the first antenna and the second antenna; a part of the ground structure and the first antenna are located on one side of the connecting beam, and another part of the ground structure and the second antenna are located on the other side of the connecting beam.

[0006] In this solution, by arranging the first antenna and the second antenna on opposite sides of the connecting beam, the ground structure is distributed on opposite sides of the connecting beam. When the wireless headset is switched between the left and right ears, the wireless headset can switch the first antenna or the second antenna to the working antenna through a switch. Because the position of the working antenna relative to the ear changes little before and after the wireless headset is switched, the position of the ground and the ground current relative to the ear changes little, so the problem of inconsistent performance can be improved, and the antenna performance and connection experience of the headset can be improved.

[0007] In an implementation of the first aspect, the ground structure includes a printed circuit board, the RF module and the switch are arranged on the printed circuit board, a portion of the printed circuit board and the first antenna are located on one side of the connecting beam, and another portion of the printed circuit board and the second antenna are located on the other side of the connecting beam.

[0008] In this solution, the printed circuit board is used as the ground of the antenna system of the wireless headset, which can ensure the normal operation of the antenna system. By distributing the printed circuit board on the opposite sides of the connecting beam, the ground current can be distributed on the opposite sides of the connecting beam. When the wireless headset is switched to be worn, the position of the ground and the ground current relative to the ear changes little, thereby improving the problem of inconsistent performance of the nature and improving the antenna performance and connection experience of the headset.

[0009] In an implementation of the first aspect, the ground structure includes a flexible circuit board, which is electrically connected to the printed circuit board, a portion of the flexible circuit board and the first antenna are located on one side of the connecting beam, and another portion of the flexible circuit board and the second antenna are located on the other side of the connecting beam.

[0010] In this solution, the flexible circuit board is used as the ground of the antenna system of the wireless headset, which can ensure the normal operation of the antenna system. By distributing the flexible circuit board on the opposite sides of the connecting beam, the ground current can be distributed on the opposite sides of the connecting beam. When the wireless headset is switched to wear, the position of the ground and the ground current relative to the ear changes little, thus improving the problem of inconsistent performance of the nature and improving the antenna performance and connection experience of the headset.

[0011] In an implementation of the first aspect, the first part includes a speaker, a first transmission line is provided in a connecting beam, and one end of the first transmission line is electrically connected to the speaker; the ground structure includes a second transmission line and a third transmission line, the second transmission line and the third transmission line are both connected to an end of the first transmission line facing away from the speaker, the second transmission line and the third transmission line extend to both sides of the connecting beam respectively, the second transmission line and the second antenna are located on the same side of the connecting beam, and the third transmission line and the first antenna are located on the same side of the connecting beam.

[0012] In this solution, the second transmission line and the third transmission line are used as the ground of the antenna system of the wireless headset, which can ensure the normal operation of the antenna system. By distributing the second transmission line and the third transmission line on opposite sides of the connecting beam, the ground current can be distributed on opposite sides of the connecting beam. When the wireless headset is switched to be worn, the position of the ground and the ground current relative to the ear changes little, thereby improving the problem of inconsistent performance of the nature and improving the antenna performance and connection experience of the headset.

[0013] In an implementation manner of the first aspect, the first antenna and the second antenna are axially symmetrically distributed, and / or the ground structure is an axially symmetrical structure.

[0014] In this solution, through the above-mentioned axially symmetrical design, when the wireless headset is switched to be worn, the position of the working antenna relative to the ear can be kept basically unchanged, and the position of the ground and the ground current relative to the ear can be kept basically unchanged. Therefore, the problem of inconsistent natural performance can be greatly improved, and the antenna performance and connection experience of the headset can be improved.

[0015] In an implementation of the first aspect, the switch includes a first end, a second end, and a third end, the first end is electrically connected to the radio frequency module, the second end is electrically connected to the first antenna, and the third end is electrically connected to the second antenna; when the switch is in a first state, the first end is connected to the second end; when the switch is in a second state, the first end is connected to the third end. By making the switch a double-throw switch, the design requirement of switching the working antenna can be well met.

[0016] In an implementation of the first aspect, the second part includes a battery, the battery is electrically connected to the printed circuit board, and the battery is located in a space surrounded by the printed circuit board, the first antenna, the second antenna, the flexible circuit board, the second transmission line, and the third transmission line. Through the above stacking design, the product structure can be made more compact and the structural space can be fully utilized.

[0017] In an implementation of the first aspect, the second part includes a touch electrode, and the touch electrode is located between the first antenna and the second antenna. By arranging the touch electrode between the two antennas, the product structure can be made more compact and the structural space can be fully utilized.

[0018] In an implementation of the first aspect, the second part includes a charging electrode, which is arranged on a flexible circuit board and electrically connected to a printed circuit board. The charging electrode can be electrically connected to a power management module / circuit on the printed circuit board through the flexible circuit board, thereby charging the wireless headset.

[0019] In an implementation of the first aspect, the second part includes a system-level chip, and the radio frequency module is integrated into the system-level chip. Integrating the radio frequency module into the system-level chip can improve system integration, reduce system power consumption, improve system operation efficiency, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an existing wireless headset switching between left and right ears;

[0021] Figure 2 is the directional diagram of the antenna of the existing wireless headset when it is in the left and right ears respectively;

[0022] Figure 3 is a schematic diagram of the assembly structure of the wireless headset according to an embodiment of the present application;

[0023] Figure 4 yes Figure 3A schematic diagram of a wireless headset shown being worn in an ear;

[0024] Figure 5 yes Figure 3 A partial structural schematic diagram of a wireless headset shown;

[0025] Figure 6 yes Figure 5 A schematic diagram of the structure of the wireless headset shown in FIG.

[0026] Figure 7 yes Figure 5 The schematic diagram of the exploded structure of the wireless headset shown;

[0027] Figure 8 yes Figure 7 A schematic diagram of the structure of the first antenna and the second antenna in FIG.

[0028] Fig. 9 yes Figure 7 A schematic diagram of the structure of the flexible circuit board;

[0029] Fig.10 It is a schematic diagram of switching between left and right ears for wearing the wireless headset according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] For ease of understanding, the relevant technical terms involved in the embodiments of the present application are explained and described below.

[0031] In the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0032] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Features qualified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0033] "Connect" should be understood in a broad sense, for example, "connect" can be detachably connected or non-detachably connected; it can be directly connected or indirectly connected through an intermediate medium. "Fix" should also be understood in a broad sense, for example, "fix" can be directly fixed or indirectly fixed through an intermediate medium.

[0034] The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", "top", "bottom", etc., are only reference directions of the drawings. The directional terms are for better and clearer explanation and understanding of the embodiments of the present application, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, etc., and therefore cannot be understood as limiting the embodiments of the present application.

[0035] In the description of the embodiments of the present application, unless otherwise specified, "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone.

[0036] like Figure 3 As shown, an embodiment of the present application provides a wireless headset 1, which may include a first part 2, a connecting beam 3 and a second part 4, wherein the connecting beam 3 is located between the first part 2 and the second part 4 and connects the first part 2 and the second part 4.

[0037] Indicatively, Figure 4 As shown, the wireless headset 1 can be an ear clip headset, the first part 2 is used to be inserted into the ear canal, and the second part 4 is used to contact the back of the ear, wherein Figure 4 2 shows the internal structure of the first part 2 and the second part 4 after removing the outer shell. The connecting beam 3 can be bent and have a certain elasticity. Relying on the elasticity of the connecting beam 3, the second part 4 can be clamped on the back of the ear, so that the wireless headset 1 can be worn.

[0038] In this embodiment, the shape of the first part 2 can be designed as needed, for example, it can be roughly spherical. The first part 2 can include a shell, and functional components installed in the shell, such as a speaker, a noise reduction microphone, etc.

[0039] In this embodiment, the connecting beam 3 can be in the shape of a bent line to adapt to the shape of the ear. The connecting beam 3 may include an outer shell (or skin), a structural member installed in the outer shell, and a first transmission line. Among them, the structural member has a certain strength and rigidity, which can play a role in maintaining the shape of the connecting beam 3, connecting and supporting the first part 2 and the second part 4. One end of the first transmission line can be electrically connected to the speaker and the noise reduction microphone, and the other end of the first transmission line can be connected to the second transmission line and the third transmission line described below. The first transmission line can play a role in transmitting electrical energy and / or transmitting signals. The first transmission line includes but is not limited to a cable line.

[0040] In this embodiment, the shape of the second part 4 can be designed as required, for example, it can be roughly in the shape of an ellipsoid capsule. The second part 4 may include a shell and a component installed in the shell. Figure 5 and Figure 6 1 shows the schematic structure of the wireless headset 1 after removing the outer shell of the second part 4. Figure 4-Figure 6 As shown, the components in the housing of the second part 4 may include a printed circuit board 41, a flexible circuit board 42, a first antenna 43, a touch electrode 44, a second antenna 45, a battery 46, a second transmission line 47 and a third transmission line 48, etc.

[0041] like Figure 7 As shown, schematically, the printed circuit board 41 may have an axisymmetric shape, for example, its shape may be roughly in the shape of a racetrack. In this embodiment, "symmetry" includes symmetry in a strict geometric sense, and may also include a situation with a certain deviation from symmetry in a strict geometric sense.

[0042] Various components, circuits and lines may be arranged on the printed circuit board 41, including but not limited to an application processor (AP), a modem, a radio frequency module, a switch, a power management module / circuit, a ground line, etc. In one embodiment, at least two of the application processor, the modem, the radio frequency module, etc. may be integrated into a system on chip (SOC). In other embodiments, the SOC integrated design may not be adopted, but each chip / component may be arranged separately on the printed circuit board 41.

[0043] The RF module can modulate the baseband signal into a RF signal and transmit it through the antenna. The RF module can also receive the RF signal through the antenna and demodulate it into a baseband signal. This embodiment does not limit the specific structure and composition of the RF module.

[0044] The switch is used to electrically connect the first antenna 43, the second antenna 45 and the radio frequency module. The switch has a first state and a second state. In the first state, the switch electrically connects the first antenna 43 to the radio frequency module and disconnects the second antenna 45 from the radio frequency module. In the second state, the switch electrically connects the second antenna 45 to the radio frequency module and disconnects the first antenna 43 from the radio frequency module. Schematically, the switch may have a first end, a second end and a third end. The first end is electrically connected to the radio frequency module, the second end is electrically connected to the first antenna 43, and the third end is electrically connected to the second antenna 45. In the first state, the first end is conductive with the second end, so that the radio frequency module is electrically connected to the first antenna 43. In the second state, the first end is conductive with the third end, so that the radio frequency module is electrically connected to the second antenna 45. The switch includes but is not limited to a double-pole double-throw (DPDT), a switch, a single-pole double-throw (SPDT) switch, and the like.

[0045] like Figure 5-Figure 7 As shown, the battery 46 can be arranged close to the printed circuit board 41 and electrically connected to the printed circuit board 41. The battery 46 serves as a power source for the wireless headset 1 and can be electrically connected to a power management module / circuit on the printed circuit board 41.

[0046] like Figure 7 and Figure 8As shown, the first antenna 43 and the second antenna 45 can be arranged roughly in an axisymmetric manner. The structure of the first antenna 43 can be designed as needed, for example, it can include a main body that is roughly in the shape of a square sheet, and a feed point 43a connected to a corner of the main body. An arc-shaped notch can be formed on the main body of the first antenna 43. The structure of the second antenna 45 can be designed as needed, for example, it can include a main body that is roughly in the shape of a square sheet, and a feed point 45a connected to a corner of the main body. An arc-shaped notch can be formed on the main body of the second antenna 45. Schematically, the first antenna 43 and the second antenna 45 can both be FPC (flexible printed circuit) antennas.

[0047] Combination Figure 6 and Figure 7 As shown, the feed point 43a of the first antenna 43 can be welded to the printed circuit board 41, thereby realizing the electrical connection between the first antenna 43 and the switch and the radio frequency unit on the printed circuit board 41, and the radio frequency unit can feed power to the first antenna 43 through the feed point 43a. The feed point 45a of the second antenna 45 can be welded to the printed circuit board 41, thereby realizing the electrical connection between the second antenna 45 and the switch and the radio frequency unit on the printed circuit board 41, and the radio frequency unit can feed power to the second antenna 45 through the feed point 45a. Figure 5 and Figure 6 As shown, the first antenna 43 and the second antenna 45 can respectively cover different areas of the top surface of the battery 46 , and both the first antenna 43 and the second antenna 45 can maintain a certain gap with the battery 46 .

[0048] like Figure 5 and Figure 6 As shown, the touch electrode 44 may be located between the first antenna 43 and the second antenna 45, and may be electrically connected to the printed circuit board 41. The touch electrode 44 is used to implement the touch function of the wireless headset 1.

[0049] like Fig. 9 As shown, the flexible circuit board 42 may be substantially axially symmetrical, and may have a bending portion 42a, a connecting portion 42b, and a bending portion 42c. Fig. 9 and Figure 7 As shown, the connecting portion 42b can be connected to the printed circuit board 41 (for example, through a connector) to achieve electrical connection between the flexible circuit board 42 and the printed circuit board 41. Figure 5 and Figure 6 As shown, the flexible circuit board 42 may be generally located on one side of the battery 46 and may maintain a certain gap with the battery 46 .

[0050] like Figure 6 and Figure 7As shown, schematically, a charging electrode (or charging pin) 421 and a charging electrode 422 may be arranged on the flexible circuit board 42, and one of the charging electrode 421 and the charging electrode 422 may be a positive electrode, and the other may be a negative electrode. In this embodiment, the flexible circuit board 42 may be used to transmit signals between components such as the charging electrode, the touch electrode 44 and other functional devices (including but not limited to the main microphone, sensor, etc.) and the printed circuit board 41.

[0051] like Figure 6 and Figure 7 As shown, the second transmission line 47 and the third transmission line 48 can be distributed on the other side of the battery 46. One end of the second transmission line 47 and the third transmission line 48 can be gathered at one point and connected to the first transmission line 31. From the gathering point, the second transmission line 47 and the third transmission line 48 can extend in opposite directions respectively. The second transmission line 47 and the third transmission line 48 can be distributed approximately axially symmetrically.

[0052] In one embodiment, the second transmission line 47 and the third transmission line 48 may be the same bundle of transmission lines, which are assembled with the first transmission line 31. Alternatively, the second transmission line 47 and the third transmission line 48 are each a bundle of transmission lines, which are each assembled with the first transmission line 31. Alternatively, the first transmission line 31, the second transmission line 47 and the third transmission line 48 are the same bundle of transmission lines, which are one line before the aggregation and are divided into two lines at the aggregation.

[0053] In this embodiment, the second transmission line 47 and the third transmission line 48 can be electrically connected to the flexible circuit board 42. Figure 7 As shown, the second transmission line 47 can be electrically connected to the bending portion 42c of the flexible circuit board 42, and the third transmission line 48 can be electrically connected to the bending portion 42a of the flexible circuit board 42. The second transmission line 47 and the third transmission line 48 can be electrically connected to the printed circuit board 41 through the flexible circuit board 42. Through the first transmission line 31, the second transmission line 47 and the third transmission line 48, the devices in the first part 2, such as speakers, microphones, etc., can be electrically connected to the printed circuit board 41 and the battery 46 in the second part 4, so as to realize power supply and signal transmission.

[0054] like Figure 5 and Figure 6 As shown, it can be considered that the battery 46 is located in the space surrounded by the printed circuit board 41, the first antenna 43, the second antenna 45, the flexible circuit board 42, the second transmission line 47 and the third transmission line 48. The first antenna 43, the second antenna 45, the flexible circuit board 42, the second transmission line 47 and the third transmission line 48 can respectively "envelope" the battery 46 from the top surface, one side and the other side of the battery 46. This stacking design is relatively compact and can make full use of the structural space.

[0055] In this embodiment, the printed circuit board 41, the flexible circuit board 42, the second transmission line 47 and the third transmission line 48 can all be used as the ground structure (or ground) of the antenna system of the wireless headset 1, or the ground structure of the antenna system can include the printed circuit board 41, the flexible circuit board 42, the second transmission line 47 and the third transmission line 48. The ground structure is electrically connected to the first antenna 43, the second antenna 45 and the radio frequency module, and the ground structure serves as a flow path for the ground current of the antenna system, which can ensure the normal operation of the antenna system.

[0056] like Figure 6 As shown, a part of the printed circuit board 41 can be located on the upper side of the connecting beam 3, and another part can be located on the lower side of the connecting beam 3; a part of the flexible circuit board 42 can be located on the upper side of the connecting beam 3, and another part can be located on the lower side of the connecting beam 3; it can be considered that the second transmission line 47 is located on the lower side of the connecting beam 3, and it can be considered that the third transmission line 48 is located on the upper side of the connecting beam 3. Therefore, it can be considered that a part of the ground structure is located on the upper side of the connecting beam 3, and another part is located on the lower side of the connecting beam 3. In addition, the first antenna 43 is located on the upper side of the connecting beam 3, so the first antenna 43 and a part of the ground structure are both located on the upper side of the connecting beam 3; the second antenna 45 is located on the lower side of the connecting beam 3, so the second antenna 45 and another part of the ground structure are both located on the lower side of the connecting beam 3.

[0057] Indicatively, Figure 6 As shown, the connecting beam 3 has a symmetry plane S, the first antenna 43 and the second antenna 45 are symmetrically distributed on opposite sides of the symmetry plane S, and the ground structure is also symmetrical about the symmetry plane S. As mentioned above, "symmetry" includes symmetry in a strict geometric sense, and may also include situations with certain deviations from symmetry in a strict geometric sense.

[0058] Fig.10 Indicates the wearing status of the wireless headset 1 in the left and right ears respectively when observed from behind the ears. Fig.10 , explaining the working principle and technical effect of the wireless headset 1.

[0059] like Fig.10 As shown, when the wireless headset 1 is worn on the left ear, the connecting beam 3 faces left. Schematically, the wireless headset 1 can control the switch to be in the second state according to the wearing detection result to electrically connect the second antenna 45 to the RF module, so that the wireless headset 1 communicates through the second antenna 45, wherein the first antenna 43 does not work.

[0060] like Fig.10As shown, when the user takes the wireless headset 1 off the left ear and wears it on the right ear, it is equivalent to turning the wireless headset 1 180 degrees in the figure, and the connecting beam 3 faces right. At this time, the wireless headset 1 can control the switch from the second state to the first state according to the wearing detection result, so as to electrically connect the first antenna 43 with the radio frequency module, so that the wireless headset 1 communicates through the first antenna 43, wherein the second antenna 45 does not work.

[0061] The user's left and right ears are approximately axisymmetric. Fig.10 As shown, since the second antenna 45 and the first antenna 43 are symmetrically distributed, when the wireless headset 1 switches from the left ear to the right ear, the position of the second antenna 45 and the feed point 45a relative to the left ear is basically equivalent to the position of the first antenna 43 and the feed point 43a relative to the right ear. Since the position of the antenna and the feed point relative to the ear of the wireless headset 1 remains basically unchanged when the left and right ears are switched, and the position of the ground structure and the ground current relative to the ear remains basically unchanged, the antenna performance of the wireless headset 1 in the left and right ears remains basically unchanged, the antenna directional diagrams are basically the same, and S11 will basically not produce frequency deviation. Therefore, the antenna performance and connection experience of the wireless headset 1 in this embodiment are better.

[0062] The above-mentioned correspondence between the position of the wireless headset 1 and the working antenna is only an example. It can be understood that when the wireless headset 1 is worn on the left ear, the first antenna 43 can be controlled by the switch to work while the second antenna 45 is not working; when the wireless headset 1 is worn on the right ear, the second antenna 45 can be controlled by the switch to work while the first antenna 43 is not working.

[0063] In this embodiment, the second antenna 45 and the first antenna 43 are axially symmetrically distributed, and the ground structure is an axially symmetrical structure. These two designs do not need to exist at the same time. For example, only the second antenna 45 and the first antenna 43 are axially symmetrically distributed, or only the ground structure is an axially symmetrical structure. This can also improve the problem of inconsistent antenna performance. As an example, the two designs can exist at the same time, which can greatly guarantee the antenna performance and connection experience of the wireless headset 1.

[0064] In this embodiment, the second antenna 45 and the first antenna 43 do not need to be strictly axially symmetrically distributed, and the ground structure does not need to be a strictly axially symmetrical structure. As long as the second antenna 45 and the first antenna 43 are respectively located on opposite sides of the connecting beam 3, and the ground structure is distributed on opposite sides of the connecting beam 3, when the wireless headset 1 is switched between the left and right ears, the position of the working antenna relative to the ear changes little, and the ground structure and the ground current change little relative to the ear. Therefore, the problem of inconsistent antenna performance can be improved.

[0065] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless headset, characterized in that: It comprises a first part, a connecting beam and a second part, wherein the connecting beam is connected between the first part and the second part; The second part includes a radio frequency module, a switch, a first antenna, a second antenna and a ground structure; The switch is electrically connected to the RF module, and the switch is used to be in a first state, so that the first antenna is electrically connected to the RF module through the switch, and the second antenna is disconnected from the RF module; the switch is also used to be in a second state, so that the second antenna is electrically connected to the RF module through the switch, and the first antenna is disconnected from the RF module; the ground structure is electrically connected to the RF module, the first antenna, and the second antenna; A portion of the ground structure and the first antenna are located on one side of the connecting beam, and another portion of the ground structure and the second antenna are located on the other side of the connecting beam.

2. The wireless headset according to claim 1, characterized in that: The ground structure includes a printed circuit board, the radio frequency module and the switch are both arranged on the printed circuit board, a portion of the printed circuit board and the first antenna are located on one side of the connecting beam, and another portion of the printed circuit board and the second antenna are located on the other side of the connecting beam.

3. The wireless headset according to claim 2, characterized in that: The ground structure includes a flexible circuit board, which is electrically connected to the printed circuit board. A portion of the flexible circuit board and the first antenna are located on one side of the connecting beam, and another portion of the flexible circuit board and the second antenna are located on the other side of the connecting beam.

4. The wireless headset according to claim 3, characterized in that: The first part includes a speaker, a first transmission line is provided in the connecting beam, and one end of the first transmission line is electrically connected to the speaker; The ground structure includes a second transmission line and a third transmission line, the second transmission line and the third transmission line are both connected to an end of the first transmission line facing away from the speaker, the second transmission line and the third transmission line extend to both sides of the connecting beam respectively, the second transmission line and the second antenna are located on the same side of the connecting beam, and the third transmission line and the first antenna are located on the same side of the connecting beam.

5. The wireless headset according to any one of claims 1 to 4, characterized in that: The first antenna and the second antenna are axially symmetrically distributed, and / or the ground structure is an axially symmetrical structure.

6. The wireless headset according to any one of claims 1 to 5, characterized in that: The switch includes a first end, a second end and a third end, the first end is electrically connected to the RF module, the second end is electrically connected to the first antenna, and the third end is electrically connected to the second antenna; when the switch is in the first state, the first end is conductive with the second end; when the switch is in the second state, the first end is conductive with the third end.

7. The wireless headset according to claim 4, characterized in that: The second part includes a battery, the battery is electrically connected to the printed circuit board, and the battery is located in a space surrounded by the printed circuit board, the first antenna, the second antenna, the flexible circuit board, the second transmission line, and the third transmission line.

8. The wireless headset according to any one of claims 1 to 7, characterized in that: The second part includes a touch electrode, and the touch electrode is located between the first antenna and the second antenna.

9. The wireless headset according to claim 3, 4 or 7, characterized in that: The second portion includes a charging electrode, which is arranged on the flexible circuit board and electrically connected to the printed circuit board.

10. The wireless headset according to any one of claims 1 to 9, characterized in that: The second part includes a system-level chip, and the radio frequency module is integrated into the system-level chip.

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