Earphone and audio device

Abstract

The utility model provides an earphone and an audio device. The earphone comprises a first earphone body, a connecting arm and a second earphone body, wherein the connecting arm is connected with the first earphone body and the second earphone body. The second earphone body comprises a shell, the shell is provided with a first pickup hole and a second pickup hole, the first pickup hole and the second pickup hole are communicated with the interior of the shell, and the first pickup hole and the second pickup hole are used for picking up external sound of the second earphone body. The center of the outer surface of the first earphone body, the center of the outer surface of the second earphone body and the center of the outer surface of the connecting arm are connected to form a symmetry plane, the first pickup hole and the second pickup hole are arranged at intervals in the first direction, and the first direction is perpendicular to the symmetry plane. The first pickup hole and the second pickup hole are symmetric about the symmetric plane. Whether a user wears the earphone on the right ear or the left ear, one of the first pickup hole and the second pickup hole always faces the ground, and the other one faces the side away from the ground.

Description

[0001] This application is a divisional application. The application number of the original application is 202490000071.9, and the original application date is August 30, 2024. The entire content of the original application is incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of headphones, and in particular to headphones and audio devices. Background Art

[0003] Clip-on wireless earphones clip onto the ear, reducing ear canal allergies and damage. They allow users to sense changes in their surroundings at all times, reducing the risk of accidents. They are suitable for extended wear during exercise, commuting, and daily work and life. Clip-on wireless earphones include a left earphone and a right earphone. The sound pickup holes of both earphones must face away from the bottom to ensure optimal sound pickup. Users should distinguish between the left and right earphones when wearing them. Utility Model Content

[0004] The present application provides a headset and an audio device.

[0005] In a first aspect, the present application provides an earphone. The earphone includes a first earphone body, a connecting arm, and a second earphone body, wherein the connecting arm connects the first earphone body and the second earphone body. The second earphone body includes a shell, and the shell is provided with a first sound pickup hole and a second sound pickup hole. The first sound pickup hole and the second sound pickup hole are connected to the interior of the shell, and the first sound pickup hole and the second sound pickup hole are used to pick up external sound of the second earphone body. The center of the outer surface of the first earphone body, the center of the outer surface of the second earphone body, and the center of the outer surface of the connecting arm are connected to form a symmetry plane. The first sound pickup hole and the second sound pickup hole are spaced apart along a first direction, and the first direction is perpendicular to the symmetry plane. The first sound pickup hole and the second sound pickup hole are symmetrical about the symmetry plane.

[0006] It is understood that when the user wears the earphones, the first earphone body can be retained within the user's cavum concha, while the second earphone body is located outside the user's ear, facing away from the first earphone body. The connecting arm is clipped to the outer edge of the user's ear, extending from the cavum concha to the back of the ear. The connecting arm, together with the first and second earphone bodies, can clamp the user's auricle, thereby securing the earphones to the ear. The center of the outer surface of the first earphone body, the center of the outer surface of the second earphone body, and the center of the outer surface of the connecting arm form a symmetry plane, which can be approximately perpendicular to the user's ear.

[0007] Compared with the solution of setting only one sound pickup hole, the present application sets a first sound pickup hole and a second sound pickup hole at the same time. When one of the first sound pickup hole and the second sound pickup hole is blocked by sweat or dust, the other one can work normally.

[0008] Compared to technical solutions that only provide one of the first and second sound pickup holes, the present application arranges the first and second sound pickup holes in a spaced relationship along a first direction perpendicular to the plane of symmetry. The first and second sound pickup holes are symmetrically arranged about the plane of symmetry. The first and second sound pickup holes can be located on either side of the plane of symmetry. When the microphone in the second earphone picks up external sound through the first and second sound pickup holes for active noise reduction or phone calls, regardless of whether the user wears the earphones on the right or left ear, one of the first and second sound pickup holes always faces the ground, while the other faces away from the ground. The interference effect received during sound pickup is consistent and does not change with changes in spatial position. The sound pickup effect of the second earphone body is essentially the same, and the sound output of the earphones is also essentially the same. Furthermore, when the user uses the earphones, the visual appearance of the first and second sound pickup holes remains the same, regardless of whether the user wears the earphones on the right or left ear. The user no longer needs to distinguish between the left and right ears when using the earphones.

[0009] In one possible implementation, the second earphone body includes a long axis, which is a line connecting two farthest end points of the housing of the second earphone body in the first direction. The first sound pickup hole and the second sound pickup hole are located on a side of the long axis close to the connecting arm.

[0010] It can be understood that when the user wears the earphones, the long axis direction can be roughly perpendicular to the bottom surface direction. When the user wears the earphones, when sweat drips onto the second earphone shell, compared with the solution in which the first sound pickup hole and the second sound pickup hole are arranged on the long axis, the first sound pickup hole and the second sound pickup hole are arranged on the side of the long axis L1 close to the connecting arm. The sweat can slide along the curve of the shell, which can reduce the risk of sweat dripping directly into the first sound pickup hole or the second sound pickup hole, and avoid the first sound pickup hole or the second sound pickup hole being blocked by sweat, affecting the sound pickup effect of the first sound pickup hole or the second sound pickup hole.

[0011] When the user wears the earphones, the second earphone body is located outside the user's ear, facing away from the first earphone body. The connecting arm is buckled onto the outer edge of the user's ear, extending from the cavum concha to the back of the ear. Positioning the first and second sound pickup holes on the side of the long axis closer to the connecting arm is farther from the user's skin than positioning the first and second sound pickup holes on the side of the long axis farther from the connecting arm. This location offers less obstruction, and when the microphone in the second earphone body picks up sound through the first and second sound pickup holes, it encounters less external obstruction.

[0012] In one possible implementation, the shell of the second earphone body is provided with a first connecting hole, the first connecting hole and the first sound pickup hole are spaced apart, and the first connecting hole is used to allow the end of the connecting arm to extend into the interior of the second earphone body.

[0013] Along the first direction, the projection of the center of the first pickup hole on the symmetry plane is the first projection, the projection of the center of the first connecting hole on the symmetry plane is the second projection, the distance between the first projection and the second projection is A1, and the distance between the second projection and the center of the outer surface of the second earphone body is A2.

[0014] The relationship between A1 and A2 satisfies:

[0015] It will be appreciated that when the user wears the earphones, the second earphone body is located outside the user's ear, facing away from the first earphone body. The connecting arm 300 is buckled onto the outer edge of the user's ear, extending from the cavum concha to the back of the ear. The first sound pickup hole is located closer to the connecting arm than the first sound pickup hole is to the user's skin. This location of the first sound pickup hole results in less obstruction around the hole, and when the microphone in the second earphone body picks up sound through the first sound pickup hole, it encounters less external obstruction.

[0016] In one possible implementation, the second earphone body includes a first feedforward microphone and a second feedforward microphone. The first feedforward microphone and the second feedforward microphone are disposed inside the housing. The first feedforward microphone picks up external sound from the second earphone body through a first sound pickup hole, and the second feedforward microphone picks up external sound from the second earphone body through a second sound pickup hole. The first feedforward microphone and the second feedforward microphone are symmetrical about a symmetric plane.

[0017] It is understandable that the first feedforward microphone and the second feedforward microphone can be used for active noise cancellation of the headphones. Active noise cancellation is a method of identifying unwanted sound sources as noise, and eliminating the original noise by generating an "anti-noise" signal, thereby eliminating the noise in real time. When the user uses the headphones, the noise emitted by the headphones is less, and the user experience is better. The first feedforward microphone and the second feedforward microphone are symmetrically arranged about the symmetry plane. Regardless of whether the user wears the headphones on the right ear or the left ear, the noise information received by the first feedforward microphone and the second feedforward microphone when picking up the noise is not much different, and the active noise cancellation effect of the headphones is basically the same. In this way, when the user uses the headphones, regardless of whether the user wears the headphones on the right ear or the left ear, the sound output effect of the headphones is basically the same.

[0018] In one possible implementation, the second earphone body is provided with a first pipe, the first pipe is located inside the housing, the first pipe is connected to the first sound pickup hole, and the sound pickup surface of the first feedforward microphone is arranged opposite to the first pipe. The first pipe is curved.

[0019] It is understandable that when the airflow near the first sound pickup hole passes through the first pipe, the curved pipe can buffer the airflow, and the wind noise when the first feedforward microphone picks up sound through the first pipe is small.

[0020] In one possible implementation, the second earphone body includes a first bracket, the first bracket is fixed to the inside of the shell of the second earphone body, the first feedforward microphone is fixed on the first bracket, and the first pipe is located on the first bracket.

[0021] It is understood that, compared to a solution where the first conduit is directly mounted on the housing of the second earphone body, mounting the first conduit on the first bracket reduces the difficulty of molding the second earphone body's housing and facilitates replacement and maintenance of components within the second earphone body. The first bracket can be used to support the first feedforward microphone, which can be assembled to the first bracket first and then assembled into the housing of the second earphone body, facilitating assembly of the second earphone body.

[0022] In one possible implementation, a first earphone body includes a housing and a first capacitive sensor, the first capacitive sensor being disposed within the housing of the first earphone body. A second earphone body includes a second capacitive sensor and a controller, both of which are disposed within the housing of the second earphone body. The first capacitive sensor and the second capacitive sensor are electrically connected to the controller. The first capacitive sensor is configured to obtain a first capacitance value in a first environment, and the second capacitive sensor is configured to obtain a second capacitance value in a second environment. The controller is configured to determine whether a user is wearing the earphones based on the first and second capacitance values.

[0023] It can be understood that compared with the solution of setting only the first capacitive sensor or the second capacitive sensor, the present application sets the first capacitive sensor on the first earphone body and the second capacitive sensor on the second earphone body. The controller can judge the state of the earphone based on the absolute value and relative value of the capacitance generated by the first capacitive sensor and the second capacitive sensor, which can reduce the risk of accidental touch and improve the accuracy of earphone wearing detection.

[0024] In one possible implementation, the outer surface of the first earphone is symmetrical about the symmetry plane;

[0025] The outer surface of the second earphone is symmetrical about the symmetry plane;

[0026] The outer surface of the connecting arm is symmetrical about the symmetry plane.

[0027] It is understood that the outer surfaces of the first earphone body, the flexible connecting arm, and the second earphone body are completely symmetrical about the symmetry plane. Therefore, the earphone originally set for the left ear can be worn on the right ear after being flipped. Therefore, when wearing the earphones provided by this application, the user does not need to distinguish between the left and right ears based on the appearance.

[0028] In one possible implementation, the second earphone body further includes an antenna module, which includes a main unit and a parasitic unit. The main unit and the parasitic unit are disposed within the housing of the second earphone body. The outer surface of the housing of the second earphone is symmetrical about a plane of symmetry, and the main unit and the parasitic unit are symmetrical about the plane of symmetry.

[0029] It is understandable that when the user wears the earphones on the left ear, during the operation of the antenna module, when the main unit of the antenna structure is close to the user's skin, it is more obstructed and the signal is easily interfered with. The parasitic unit is located at a position farther away from the user, with less obstruction and the signal is not easily interfered with. When the user wears the earphones on the right ear, the parasitic unit is close to the user's skin, and the main unit is located at a position farther away from the user. In this way, whether the user wears the earphones on the left or right ear, the interference to the signal of the antenna module is similar, the sensitivity of the earphones to play sound or receive signals is also relatively similar, and the user experience is better.

[0030] In one possible implementation, the second earphone body includes a battery, a first electrode, and a second electrode. The first electrode and the second electrode are both embedded in the housing of the second earphone body, the first electrode and the second electrode are both electrically connected to the battery, and the first electrode, the second electrode, the first sound pickup hole, and the second sound pickup hole are spaced apart from each other. The outer surface of the second earphone housing is symmetrical about a symmetric plane, one end of the first electrode and one end of the second electrode are exposed relative to the outer surface of the second earphone housing, and the first electrode and the second electrode are symmetrical about the symmetric plane.

[0031] It can be understood that one end of the first electrode and one end of the second electrode are exposed relative to the outer surface of the shell of the second earphone body, and the first electrode and the second electrode are symmetrical about the symmetry plane. Regardless of whether the user wears the earphones on the left ear or the right ear, the appearance of the first electrode and the second electrode on the shell of the second earphone body is the same, and the user has a better experience when wearing the earphones.

[0032] In one possible implementation, the first earphone body includes a housing and a speaker. The speaker is fixedly connected to the inner surface of the housing of the first earphone body. The speaker and the inner surface of the housing of the first earphone body enclose a first subcavity. The speaker and the inner surface of the housing of the first earphone body enclose a second subcavity. The sound output surface of the speaker faces the first subcavity. The outer surface of the first earphone body is symmetrical about a plane of symmetry. The housing of the first earphone body is provided with two pressure relief holes, which connect the second subcavity and the exterior of the first earphone body. The two pressure relief holes are spaced apart and symmetrical about the plane of symmetry.

[0033] It is understandable that compared to the method of providing only one pressure relief hole, whether the user wears the earphones on the left or right ear, the two pressure relief holes are symmetrical about the symmetry plane, and one of the two pressure relief holes is always kept facing the ground and the other facing away from the ground to ensure the pressure relief effect. The user does not need to distinguish between the left and right ears when wearing the earphones. In addition, when sweat blocks one of the pressure relief holes, the other pressure relief hole can work to balance the air pressure in the second sub-chamber.

[0034] In a possible implementation, the first earphone body includes a housing and a bone sensor, and the bone sensor is disposed inside the housing of the first earphone body.

[0035] It is understandable that the bone vibration sensor can be used to pick up vibrations when the user speaks, thereby facilitating call noise reduction.

[0036] In one possible implementation, the connecting arm has a first end and a second end spaced apart along its length, the first end connected to the first earphone body, and the second end connected to the second earphone body. A central axis of the first end and a central axis of the second end are arranged at an angle ranging from 11.4° to 26°.

[0037] It can be understood that, compared with the solution in which the central axis direction of the first end of the connecting arm 300 and the central axis direction of the second end of the connecting arm are set in parallel, the first end and the second end of the connecting arm are set at an angle ranging from 11.4° to 26°. When the user wears the earphone 0, the relative positions of the first earphone body and the second earphone body can better fit the inclination angle and contour curve of the user's ear, effectively reducing the pressure of the first earphone body and the second earphone body of the earphone 0 on the earphone, and the user's experience of use is better.

[0038] In one possible implementation, the connecting arm includes a tube and a wiring harness. The tube defines a first channel extending along its length. The first channel opens at a first end face and a second end face of the tube. The wiring harness is located within the first channel. One end of the wiring harness is exposed at the first end face of the tube for electrical connection to the first earphone body, and the other end of the wiring harness is exposed at the second end face of the tube for electrical connection to the second earphone body. A gap is defined between the wiring harness and the wall of the first channel.

[0039] It is understood that when the connecting arm bends, the deformation of the wiring harness can be smaller than that of the tube body. In other words, when the connecting arm bends, the amount of stretching of the wiring harness is smaller than that of the tube body. This makes the wiring harness less likely to break and has a longer lifespan.

[0040] In one possible implementation, a wiring harness includes a first signal line, a second signal line, a first package, and a second package. The first signal line serves as a current transmission channel for the power supply. The second signal line serves as a signal transmission channel for the speaker. The second package has a second mounting channel along its length, within which the second signal line is assembled. The second package and the second signal line constitute a sub-wiring harness. The first package has a first mounting channel along its length, within which the sub-wiring harness and the first signal line are assembled.

[0041] As you can understand, the speaker signal is easily affected by other signals, requiring high crosstalk requirements. The second signal line is individually assembled and encapsulated using the second encapsulation member 343 to form a sub-wiring harness. This is then assembled and encapsulated together with the first signal line using the first encapsulation member. This reduces the speaker signal's potential for interference from other signal lines, resulting in better sound quality for the headphones.

[0042] In one possible implementation, the outer shell of the second earphone body is shorter in a second direction than in a first direction, where the second direction is the direction from the end of the connecting arm connected to the second earphone body (i.e., the second end) toward the center of the outer surface of the second earphone body. The outer shell of the second earphone body is shorter in a third direction than in the first direction, where the third direction is perpendicular to the first direction and the third direction is perpendicular to the second direction.

[0043] It is understood that the outer shell of the second earphone body is generally ellipsoidal in shape. When the user wears the earphones, the first direction is roughly aligned with the length of the ear. Compared to technical solutions in which the first direction is perpendicular to the length of the ear, this solution allows the second earphone body to more closely conform to the curved surface of the user's auricle when the user wears the earphones, thereby improving wearing comfort.

[0044] In one possible implementation, a third gap S1 is defined between the connecting arm and the first earphone body, and a fourth gap S2 is defined between the connecting arm and the second earphone body. The third gap S1 may be larger than the fourth gap S2.

[0045] It is understandable that during the assembly process of the connecting arm, the first earphone body and the second earphone body, due to assembly tolerance, when the angle between the central axis direction of the first end of the tube body and the central axis direction of the second end of the tube body cannot reach the preset ideal angle, at this time, fine-tuning can be performed through the third gap S1 between the first connecting member and the first earphone body to adjust the relative position between the first earphone body and the second earphone body.

[0046] In a second aspect, the present application provides an audio device, which includes an earphone box and earphones, wherein the earphones are arranged in the earphone box. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0048] Figure 1 This is a schematic structural diagram of an embodiment of the earphone provided by this application;

[0049] Figure 2 yes Figure 1 An exploded schematic diagram of an embodiment of the earphone shown in ;

[0050] Figure 3 This is a state diagram of an embodiment of a user using the headset provided by this application;

[0051] Figure 4 yes Figure 2 A schematic structural diagram of the second earphone body at another angle shown in FIG;

[0052] Figure 5 yes Figure 4 An exploded schematic diagram of an embodiment of a second earphone body shown in FIG;

[0053] Figure 6 yes Figure 4 A partial cross-sectional view of an embodiment of the second earphone body shown in FIG.

[0054] Figure 7 yes Figure 5 A schematic structural diagram of an embodiment of the third housing shown in FIG;

[0055] Figure 8 yes Figure 5 Schematic diagram of an assembly of an antenna module and a third housing according to an embodiment of the present invention;

[0056] Figure 9 yes Figure 8 An exploded schematic diagram of an embodiment of the antenna module shown in FIG.

[0057] Figure 10 yes Figure 5 A schematic diagram of the partial structural assembly of the second earphone body shown in FIG;

[0058] Figure 11 yes Figure 10 A cross-sectional view of an embodiment of the structure shown in FIG. 1 at section line BB;

[0059] Figure 12 yes Figure 5 An assembly diagram of an embodiment of the first feedforward microphone, the second feedforward microphone, the first bracket, the second bracket and the second circuit board shown in FIG;

[0060] Figure 13 yes Figure 12 A partial cross-sectional view of an embodiment of the structure shown in FIG. 1 at section line CC;

[0061] Figure 14 yes Figure 10 A partial cross-sectional view of an embodiment of the structure shown in FIG. 1 at section line DD;

[0062] Figure 15 yes Figure 5 A structural diagram of an embodiment of a mainboard bracket shown in FIG;

[0063] Figure 16 yes Figure 5 Schematic diagram of an assembly of a circuit board and a mainboard bracket shown in one embodiment;

[0064] Figure 17 yes Figure 16 A schematic diagram of the structure shown in another angle;

[0065] Figure 18 yes Figure 5 A schematic diagram of the partial structural assembly of the second earphone body shown in FIG;

[0066] Figure 19 yes Figure 18 A cross-sectional view of an embodiment of the second earphone body shown in FIG.

[0067] Figure 20 yes Figure 18 A cross-sectional view of an embodiment of the second earphone body shown in FIG.

[0068] Figure 21 yes Figure 5 A schematic diagram of the partial structural assembly of the second earphone body shown in FIG;

[0069] Figure 22 yes Figure 21 A cross-sectional view of an embodiment of the structure shown in FIG. 1 at section line GG;

[0070] Figure 23 yes Figure 1 A schematic diagram of the structure of the earphone shown in another angle;

[0071] Figure 24 yes Figure 1 A structural diagram of an embodiment of the first earphone body shown in FIG;

[0072] Figure 25 yes Figure 24 A schematic diagram of a partial structural decomposition of the first earphone body shown in FIG;

[0073] Figure 26 yes Figure 24 A partial cross-sectional view of an embodiment of the first earphone body shown in FIG. 1 at section line HH;

[0074] Figure 27 yes Figure 24 A partial cross-sectional view of an embodiment of the first earphone body shown in FIG.

[0075] Figure 28 yes Figure 25 A structural schematic diagram of an embodiment of the wiring harness bracket shown in ;

[0076] Figure 29 yes Figure 28 A schematic structural diagram of the wiring harness bracket at another angle shown in FIG;

[0077] Figure 30 yes Figure 24 A partial cross-sectional view of an embodiment of the first earphone body shown in FIG. 1 at section line HH;

[0078] Figure 31 yes Figure 25 Schematic diagram of an assembly of a bone sensor and a harness support according to an embodiment of the present invention;

[0079] Figure 32 yes Figure 24 A partial cross-sectional view of an embodiment of the first earphone body shown in FIG.

[0080] Figure 33 yes Figure 25 A structural diagram of an embodiment of the first circuit board shown in FIG;

[0081] Figure 34 yes Figure 24 A partial structural diagram of an embodiment of the first earphone body shown in FIG;

[0082] Figure 35 yes Figure 34 A schematic diagram of the structure shown in another angle;

[0083] Figure 36 yes Figure 27 An enlarged schematic diagram of an embodiment of the structure shown in J;

[0084] Figure 37 yes Figure 1 A cross-sectional view of an embodiment of the earphone shown in FIG.

[0085] Figure 38 yes Figure 1 A cross-sectional view of an embodiment of the connecting arm shown in FIG. 1 at section line KK;

[0086] Figure 39 yes Figure 38 A cross-sectional view of an embodiment of the connecting arm shown in FIG. 1 at section line LL;

[0087] Figure 40 yes Figure 38 A cross-sectional view of an embodiment of the connecting arm shown in FIG.

[0088] Figure 41 yes Figure 37 An enlarged view of an embodiment of the structure shown in FIG.

[0089] Figure 42 yes Figure 38 A cross-sectional view of an embodiment of the wiring harness shown in FIG. 1 at section line PP;

[0090] Figure 43 is an assembly diagram of an embodiment of a wiring harness, a first circuit board, and a second circuit board;

[0091] Figure 44 is an assembly diagram of an embodiment of a wiring harness, a first circuit board, and a wiring harness bracket;

[0092] Figure 45 It is a structural diagram of an embodiment of the audio device provided by this application. DETAILED DESCRIPTION

[0093] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0094] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that they are connected to each other and the relative position relationship after connection remains unchanged. It should be understood that when component A is fixedly connected to component C through component B, changes in the relative position relationship due to the deformation of component A, component B and component C itself are allowed. Among them, the two components are integrated into an integrated structure through an one-piece molding process, which means that in the process of forming one of the two components, the component is connected to the other component, and there is no need to connect the two components together through reprocessing (such as bonding, welding, snap connection, screw connection).

[0095] The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "side", etc., are only references to the directions of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0096] The term "plurality" means at least two. The term "above" includes the number itself. The term "and / or" is a description of an association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. Terms such as "first" and "second" are used for descriptive purposes only and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0097] The present application provides an earphone 1000 and a pair of earphones, wherein the earphone 1000 is a clip-on wireless earphone (True Wireless Stereo, TWS) that can be clamped on the ear. Clip-on earphones can reduce ear discomfort of the wearer and improve wearing comfort. A pair of earphones includes two earphones 1000, which can be divided into a first earphone and a second earphone. The first earphone and the second earphone are respectively used to be worn on the left ear and the right ear of the user. The first earphone and the second earphone do not distinguish between left and right ears, that is, the first earphone can be worn on the left ear or the right ear, and the second earphone can be worn on the left ear or the right ear; thus, the portability of the earphone 1000 is improved.

[0098] In some embodiments, the earphones 1000 may be open-ear earphones. This eliminates the need for the earphones to penetrate deeply into the ear canal of the user, which can reduce ear canal allergies and damage, allowing the user to sense changes in the surrounding environment at any time, reducing the risk of accidents.

[0099] Figure 1 1 is a schematic structural diagram of an embodiment of the earphone 1000 provided in this application. Figure 2 yes Figure 1 An exploded schematic diagram of an embodiment of the earphone 1000 is shown in FIG.

[0100] like Figure 1 and Figure 2As shown, the earphone 1000 is roughly U-shaped and includes a first earphone body 100, a second earphone body 200, and a connecting arm 300. The connecting arm 300 is roughly U-shaped and is connected between the first earphone body 100 and the second earphone body 200. The first earphone body 100 is electrically connected to the second earphone body 200. For example, along the length direction of the connecting arm 300, the connecting arm 300 has a first end and a second end disposed opposite to each other, the first end connected to the first earphone body 100, and the second end connected to the second earphone body 200. In this way, the first earphone body 100 and the second earphone body 200 can be physically connected through the connecting arm 300. In addition, the first earphone body 100 and the second earphone body 200 can also be electrically connected through the connecting arm 300. For example, the connecting arm 300 can include a wiring harness, one end of which is electrically connected to the first earphone body 100, and the other end of which is electrically connected to the second earphone body 200.

[0101] For the convenience of description, the geometric center of the outer surface of the first earphone body 100, the geometric center of the outer surface of the second earphone body 200 and the geometric center of the outer surface of the connecting arm 300 define a unique plane, which is the OO plane ( Figure 1 For ease of description, the direction perpendicular to the OO plane is defined as the Z-axis, the direction from the end of the connecting arm 300 connected to the second earphone body 200 pointing toward the center of the second earphone body 200 is defined as the X-axis, and the direction perpendicular to the X-axis and the Z-axis is defined as the Y-axis.

[0102] In some embodiments, the outer surface of the first earphone body 100 can be symmetrical about the symmetry plane, the outer surface of the second earphone body 200 can be symmetrical about the symmetry plane, and the outer surface of the connecting arm 300 can be symmetrical about the symmetry plane. In this way, the entire earphone 1000 is symmetrical about the symmetry plane.

[0103] Figure 3 This is a state diagram of an embodiment of a user using the headset 1000 provided by this application.

[0104] like Figure 3 As shown, the first earphone body 100 can be used for sound production. When the user uses the earphones, the first earphone body 100 can be retained within the user's concha cavity, without penetrating into the user's ear canal. This means that the earphones 1000 of this application are open-ear earphones. The tolerance of the human concha cavity is much higher than that of the ear canal, so the earphones 1000 provided in this application can greatly improve wearing comfort compared to in-ear audio devices.

[0105] The second earphone body 200 is located outside the user's ear, facing away from the first earphone body 100. The connecting arm 300 is attached to the outer edge of the user's ear, extending from the concha cavity to the back of the ear. It is understood that the connecting arm 300, together with the first and second earphone bodies 100 and 200, clamps the user's auricle, thereby securing the earphone 1000 to the ear.

[0106] In some embodiments, the connecting arm 300 may have a deformable ability and may be used to adjust the distance between the first earphone body 100 and the second earphone body 200, so that the distance between the first earphone body 100 and the second earphone body 200 is adjusted from the initial distance to the adjusted distance. The initial distance refers to the distance between the first earphone body 100 and the second earphone body 200 when the earphone 1000 is not worn on the user's ear. The adjusted distance refers to the distance after the initial distance is increased or decreased. It should be noted that the initial distance and the adjusted distance both refer to the distance between the first earphone body 100 and the second earphone body 200; the distance between the surfaces of the first earphone body 100 and the second earphone body 200 facing each other, that is, the distance between the two earphone 1000 surfaces that first contact the ear.

[0107] It is understood that the earphones 1000 equipped with the deformable connecting arm 300 can adapt to users with different ear thicknesses, providing each user with an appropriate clamping force, avoiding clamping that is too tight or too loose and affecting the wearing experience. At the same time, when putting on and taking off the earphones 1000 provided by this application, the user can use the connecting arm 300 to increase the distance between the first earphone body 100 and the second earphone body 200 to ensure smooth wearing and taking off of the earphones 1000, avoid pressure deformation of the ears, and enhance the user's experience when putting on and taking off the earphones 1000.

[0108] When a user uses the headphones, the first earphone body 100 can be used to produce sound. For example, the first earphone body 100 can include a speaker, and sound can be produced through the speaker. The first earphone body 100 can be retained in the user's cavum concha, and the second earphone body 200 is located outside the user's ear, facing away from the first earphone body 100. The second earphone body 200 can be used to pick up external noise from the second earphone body 200, which is used in the active noise cancellation (ANC) design system of the headphones 1000. Active noise cancellation is a method of identifying unwanted sound sources as noise and generating an "anti-noise" signal to eliminate the original noise, thereby eliminating the noise in real time. When the user uses the headphones 1000, the sound emitted by the headphones 1000 is less noisy, providing a better user experience. The following is a detailed description of an embodiment of the second earphone body 200 using the accompanying drawings.

[0109] In some embodiments, the outer surface of the first earphone body 100 is symmetrical about the first symmetry plane. The outer surface of the second earphone body 200 is symmetrical about the second symmetry plane. The outer surface of the connecting arm 300 is symmetrical about the third symmetry plane. The first symmetry plane, the second symmetry plane, and the third symmetry plane are coplanar. For example, any one of the first symmetry plane, the second symmetry plane, and the third symmetry plane can be coplanar with the symmetry plane (i.e., the 0-0 plane). In this way, the overall appearance of the earphone 1000 is a symmetrical structure, and the user does not need to distinguish between the left and right ears when using the earphone 1000.

[0110] In other embodiments, due to assembly tolerances, an angle may be formed between any two of the first, second, and third symmetric planes, and the angle may be less than or equal to 1°. For example, the angle between any two of the first, second, and third symmetric planes may be 0.2°, 0.5°, 0.9°, or 1°. For example, the angle between the first and second symmetric planes may be less than 1°, or the angle between the first and third symmetric planes may be less than 1°, or the angle between the second and third symmetric planes may be less than 1°.

[0111] Figure 4 yes Figure 2 FIG. 1 is a schematic structural diagram of the second earphone body 200 at another angle.

[0112] like Figure 2 and Figure 4 As shown, the length D1 of the housing 209 of the second earphone body in the first direction is greater than the length D2 in the second direction. The second direction is the direction in which the end portion (i.e., the second end portion) of the connecting arm 300 connected to the second earphone body 200 points to the center of the outer surface of the second earphone body 200. The second direction is different from the first direction. Figure 4 The first direction is shown as the Z-axis direction. The second direction is the X-axis direction. In other embodiments, the first direction may be any direction in the XZ plane, for example, a direction forming a certain angle with the Z-axis. The second direction may also be any direction in the XZ plane, for example, a direction forming a certain angle with the X-axis.

[0113] Illustratively, the second earphone body 200 includes a long axis L1. The long axis L1 is a line connecting the two farthest endpoints of the housing 209 of the second earphone body 200 in the first direction. The housing 209 of the second earphone body 200 may have multiple connecting lines in the first direction, with the long axis L1 being the longest of these lines. The length of the long axis L1 is D1.

[0114] In some embodiments, the second symmetry plane is perpendicular to the first direction (ie, the Z-axis direction). In this case, the second symmetry plane is the XY plane.

[0115] In some embodiments, the second earphone body 200 may include a short axis L2. The short axis L2 is the length between the two farthest endpoints of the second earphone body 200 in the second direction. The housing 209 of the second earphone body 200 may have multiple connecting lines in the second direction, and the short axis L2 is the longest one among them.

[0116] Exemplarily, the length D2 of the minor axis L2 is in the range of 11.44 mm to 13.44 mm. For example, the length D2 of the minor axis L2 may be 11.44 mm, 12.44 mm, or 13.44 mm.

[0117] In some embodiments, the length of the housing 209 of the second earphone body 200 in the second direction is less than the length in the first direction. The length of the housing 209 of the second earphone body 200 in the third direction is less than the length in the first direction, and the third direction and the second direction are different from the first direction. Figure 2 The third direction is shown as the Y-axis. In other embodiments, the third direction can also be any direction in the XY plane, for example, a direction that forms a certain angle with the Y-axis. In this way, the second earphone body 200 can be roughly ellipsoidal in shape. When the user wears the earphones 1000, the longer direction of the ellipsoid is roughly the same as the length of the ear.

[0118] In some embodiments, the housing 209 of the second earphone body 200 can be shaped like a broad bean. It is understood that the bean-shaped design of the second earphone body 200 conforms to the curved surface of the user's auricle when worn, thereby improving wearing comfort. When the user wears the earphones 1000, the first direction is approximately the same as the length of the ear.

[0119] Figure 5 yes Figure 4 FIG. 1 is a schematic exploded view of an embodiment of a second earphone body 200 shown in FIG. Figure 6 yes Figure 4 FIG. 1 is a partial cross-sectional view of an embodiment of the second earphone body 200 at the section line AA shown in FIG.

[0120] like Figure 5 and Figure 6As shown, the second earphone body 200 may include a housing 209, an antenna module 230, a battery 240, a mainboard bracket 250, a mainboard 260, a first bracket 271, a second bracket 272, a first feedforward microphone 273, a second feedforward microphone 274, a second circuit board 280, a second capacitive sensor 290, and a charging terminal 291. The antenna module 230, the battery 240, the mainboard bracket 250, the mainboard 260, the first bracket 271, the second bracket 272, the first feedforward microphone 273, the second feedforward microphone 274, the second circuit board 280, and the second capacitive sensor 290 may all be disposed inside the housing 209 of the second earphone body 200.

[0121] For example, the housing 209 of the second earphone body 200 may include a third housing 210 and a fourth housing 220. The third housing 210 is connected to the fourth housing 220, enclosing a second space 201. The antenna module 230, battery 240, motherboard bracket 250, motherboard 260, first bracket 271, second bracket 272, first feedforward microphone 273, second feedforward microphone 274, second circuit board 280, and second capacitive sensor 290 may all be disposed within the second space 201.

[0122] like Figure 6 As shown, the third housing 210 may have an outer surface 211, an inner surface 212, and a third end surface 213. The outer surface 211 and the inner surface 212 are disposed opposite each other, with the inner surface 212 facing the second space 201. The third end surface 213 is connected between the outer surface 211 and the inner surface 212. The fourth housing 220 may have an outer surface 221, an inner surface 222, and a fourth end surface 223. The outer surface 221 and the inner surface 222 are disposed opposite each other, with the inner surface 222 facing the second space 201. The fourth end surface 223 is connected between the outer surface 221 and the inner surface 222.

[0123] When the third housing 210 is connected to the fourth housing 220, the third end surface 213 of the third housing 210 connects to the fourth end surface 223 of the fourth housing 220. The outer surface 211 of the third housing 210 and the outer surface 221 of the fourth housing 220 form the outer surface of the second earphone body 200. The inner surface 212 of the third housing 210 and the inner surface 222 of the fourth housing 220 form the inner surface of the second earphone body 200. The inner surface 212 of the third housing 210 and the inner surface 222 of the fourth housing 220 enclose a second space 201.

[0124] In some embodiments, the third housing 210 may be symmetrical about the second symmetry plane. The fourth housing 220 may also be symmetrical about the second symmetry plane. Thus, the outer surface 211 of the third housing 210 and the outer surface 221 of the fourth housing 220, which constitute the outer surface of the second earphone body 200, may also be symmetrical about the second symmetry plane.

[0125] Figure 7 yes Figure 5 A structural diagram of an embodiment of the third housing 210 is shown in FIG.

[0126] like Figure 7 As shown, the third housing 210 is provided with a first sound pickup hole 214 and a second sound pickup hole 215 spaced apart. The first sound pickup hole 214 connects the outer surface 211 and the inner surface 212 of the third housing 210. The second sound pickup hole 215 can connect the outer surface 211 and the inner surface 212 of the third housing 210.

[0127] In some embodiments, the first sound pickup hole 214 and the second sound pickup hole 215 may be spaced apart along the first direction. In some embodiments, the first sound pickup hole 214 and the second sound pickup hole 215 may be symmetrical about the second symmetry plane.

[0128] The third housing 210 is provided with a first charging port 216 and a second charging port 217 spaced apart from each other. The first charging port 216, the second charging port 217, the first sound pickup port 214, and the second sound pickup port 215 are spaced apart from each other. The first charging port 216 connects the outer surface 211 and the inner surface 212 of the third housing 210. The second charging port 217 connects the outer surface 211 and the inner surface 212 of the third housing 210.

[0129] In some embodiments, the first charging holes 216 and the second charging holes 217 may be arranged at intervals along the first direction.

[0130] In some embodiments, the first charging hole 216 and the second charging hole 217 may be symmetrical about a symmetry plane (ie, a 0-0 plane).

[0131] The third housing 210 may further include a first connection hole 218. The first connection hole 218 is spaced apart from the first sound pickup hole 214, the second sound pickup hole 215, the first charging hole 216, and the second charging hole 217. The first connection hole 218 connects the outer surface 211 and the inner surface 212 of the third housing 210.

[0132] In some embodiments, the first sound pickup hole 214 and the second sound pickup hole 215 may be spaced apart along the first direction and located on both sides of the first connection hole 218 . Figure 8 yes Figure 5 Schematic diagram of an assembly of an antenna module 230 and a third housing 210 according to an embodiment of the present invention is shown in FIG.

[0133] like Figure 8As shown, the antenna module 230 can be fixedly connected to the inner surface 212 of the third housing 210. For example, the antenna module 230 can be fixedly connected to the inner surface 212 of the third housing 210 by gluing, welding, or the like.

[0134] In some embodiments, the inner surface 212 of the third housing 210 may be provided with a first positioning post 2121. The first positioning post 2121 may be formed as a protrusion from the inner surface 212. Furthermore, the antenna module 230 may be provided with a corresponding positioning hole 233. When the antenna module 230 is mounted to the third housing 210, the first positioning post 2121 is at least partially located within the positioning hole 233. It will be appreciated that the provision of the first positioning post 2121 and the positioning hole 233 facilitates rapid positioning during assembly of the antenna module 230 and prevents displacement of the antenna module 230 during subsequent assembly steps.

[0135] In some embodiments, the antenna module 230 may be plane-symmetrical about the symmetry plane OO.

[0136] Figure 9 yes Figure 8 FIG. 1 is a schematic exploded view of an embodiment of an antenna module 230 shown in FIG.

[0137] like Figure 9 As shown, the antenna module 230 may include a packaging structure 231 and an antenna structure 232. The antenna structure 232 is embedded in the packaging structure 231. The packaging structure 231 is used to protect and insulate the antenna structure 232. The antenna structure 232 can be used to transmit and receive antenna signals.

[0138] In some embodiments, the antenna structure 232 can be symmetrical about the symmetry plane OO. In this way, whether the user wears the headset 1000 on the left or right ear, the interference to the signal of the antenna module 230 is relatively small, and the sensitivity of the headset 1000 in playing sound or receiving signals is relatively similar, resulting in a better user experience.

[0139] In some embodiments, the antenna module 230 can adopt a monopole antenna with a parasitic unit. Exemplarily, the antenna structure 232 includes a main unit 2311, a parasitic unit 2312, a ground trace 2313 and a feed trace 2314. The main unit 2311 and the parasitic unit 2312 are spaced and insulated. One end of the feed trace 2314 is connected to the main unit 2311, and the other end is connected to the main board 250 (not shown). The feed trace 2314 is used to supply power to the main unit 2311. One end of the ground trace 2313 is connected to the parasitic unit 2312, and the other end is connected to the main board 250 (not shown). The ground trace 2313 is used to ground the parasitic unit 2312. Among them, the main unit 2311 is a monopole antenna. The parasitic unit 2312 serves as a parasitic unit. During operation of antenna module 230, mainboard 250 (not shown) supplies power to main unit 2311 via feed trace 2314, stimulating operation of main unit 2311. When powered, main unit 2311 couples and excites parasitic unit 2312, forming a capacitively coupled parasitic mode between main unit 2311 and parasitic unit 2312. Thus, parasitic unit 2312 also functions as antenna module 230.

[0140] In some embodiments, the main unit 2311 and the parasitic unit 2312 can be symmetrical about the symmetry plane 0-0. It is understandable that during the operation of the antenna module 230, when the main unit 2311 of the antenna structure 232 is close to the user's skin, it is more obstructed and the signal is easily interfered with, while the parasitic unit 2312 is located at a position farther away from the user, with less obstruction and the signal is not easily interfered with. Vice versa, when the parasitic unit 2312 is close to the user's skin, the main unit 2311 is located at a position farther away from the user. In this way, no matter whether the user wears the headset 1000 on the left ear or the right ear, the interference to the signal of the antenna module 230 is similar, the sensitivity of the headset 1000 in playing sound or receiving signals is also relatively similar, and the user experience is better.

[0141] In some embodiments, along the Z-axis direction, the distance between the main unit 2311 and the parasitic unit 2312 may be 0.5 mm.

[0142] In some embodiments, the length L of the antenna module 230 along the Z-axis may be 13.8 mm, and the width W of the antenna module 230 along the X-axis may be 5.9 mm.

[0143] In some embodiments, the antenna module 230 may be a flexible printed circuit (FPC) antenna. It is understood that, compared to other antenna modules 230, the FPC antenna is smaller and more flexible, allowing for greater flexibility in placement.

[0144] Figure 10 yes Figure 5 FIG. 1 is a schematic diagram of a partial structural assembly of the second earphone body 200 shown in FIG. Figure 11 yes Figure 10 sectional view of an embodiment of the structure shown in FIG at section line BB.

[0145] like Figure 10 and Figure 11 As shown, the battery 240 can be disposed on a side of the antenna module 230 away from the third housing 210. The battery 240 can be fixedly connected to the inner surface 212 of the third housing 210. For example, the battery 240 can be fixedly connected to the inner surface 212 of the third housing 210 by gluing.

[0146] In some embodiments, the battery 240 and the antenna module 230 are disposed opposite and spaced apart along the Y-axis. For example, along the Y-axis, the distance between the battery 240 and the antenna module 230 may be greater than or equal to 0.2 mm, for example, greater than or equal to 0.23 mm.

[0147] Along the first direction (i.e., the Z-axis direction), the first bracket 271 and the second bracket 272 are spaced apart on both sides of the battery 240. The first bracket 271 and the second bracket 272 are spaced apart from the antenna module 230. Exemplarily, the first bracket 271 and the second bracket 272 can be fixedly connected to the third housing 210. For example, the first bracket 271 and the second bracket 272 can be fixedly connected to the third housing 210 by gluing. The first feedforward microphone 273 is fixedly connected to the first bracket 271. The first feedforward microphone 273 is spaced apart from the battery 240 and the antenna module 230. The second feedforward microphone 274 is fixedly connected to the second bracket 272. The first feedforward microphone 273 is spaced apart from the battery 240 and the antenna module 230. The first bracket 271 can be used to support the first feedforward microphone 273. The second bracket 272 can be used to support the second feedforward microphone 274. The first feedforward microphone 273 and the second feedforward microphone 274 are used for active noise reduction, picking up the ambient sound (i.e., external ear noise) near the second earphone body 200, and outputting an anti-phase sound to cancel the ambient sound. For example, the first feedforward microphone 273 can be fixedly connected to the side of the first bracket 271 away from the battery 240. The second feedforward microphone 274 can be fixedly connected to the side of the second bracket 272 away from the battery 240. At this time, the first feedforward microphone 273 and the second feedforward microphone 274 are arranged at intervals along the Z-axis direction.

[0148] In some embodiments, the first bracket 271 and the second bracket 272 may be symmetrical about the 0-0 plane.

[0149] In some embodiments, the first feed-forward microphone 273 and the second feed-forward microphone 274 may be symmetrical about the 0-0 plane.

[0150] Figure 12 yes Figure 5 , which is a schematic diagram of an assembly of a first feedforward microphone 273 , a second feedforward microphone 274 , a first bracket 271 , a second bracket 272 and a second circuit board 280 in one embodiment. Figure 13 yes Figure 12 A partial cross-sectional view of an embodiment of the structure shown in FIG. 1 at section line CC.

[0151] like Figure 12 and Figure 13 As shown, the first feedforward microphone 273 and the second feedforward microphone 274 are connected to the second circuit board 280 and are electrically connected to the second circuit board 280. The first bracket 271 and the second bracket 272 are connected to the second circuit board 280. For example, the second circuit board 280 is disposed between the first feedforward microphone 273 and the first bracket 271. The first bracket 271 can also be used to support the portion of the second circuit board 280 connected between the first feedforward microphone 273 and the first bracket 271. The second circuit board 280 is disposed between the second feedforward microphone 274 and the second bracket 272. The second bracket 272 can also be used to support the portion of the second circuit board 280 connected between the second feedforward microphone 274 and the second bracket 272.

[0152] Figure 14 yes Figure 10 A partial cross-sectional view of an embodiment of the structure shown in FIG. 1 at section line DD.

[0153] like Figure 14 As shown, the second earphone body 200 may be provided with a first duct 2711, which is located inside the housing of the second earphone body 200 and communicates with the first sound pickup hole 214. The sound pickup surface of the first feedforward microphone 273 is disposed opposite the first duct 2711. The second earphone body 200 may also be provided with a second duct 2721, which is located inside the housing 209 of the second earphone body 200 and communicates with the second sound pickup hole 215. The sound pickup surface of the second feedforward microphone 274 is disposed opposite the second duct 2721.

[0154] For example, the first bracket 271 may be provided with a first duct 2711. One end of the first duct 2711 is disposed opposite and communicates with the first sound pickup hole 214. The other end of the first duct 2711 is disposed opposite the sound pickup surface of the first feedforward microphone 273. In this way, external noise from the second earphone body 200 near the first sound pickup hole 214 can pass through the first sound pickup hole 214 and the first duct 2711, reaching the vicinity of the sound pickup surface of the first feedforward microphone 273 and being picked up by the first feedforward microphone 273. The second bracket 272 may also be provided with a second duct 2721. One end of the second duct 2721 may be disposed opposite and communicates with the second sound pickup hole 215. The other end of the second duct 2721 may be disposed opposite the sound pickup surface of the second feedforward microphone 274. In this way, external noise from the second earphone body 200 near the second sound pickup hole 215 can pass through the second sound pickup hole 215 and the second duct 2721, reaching the vicinity of the sound pickup surface of the second feedforward microphone 274 and being picked up by the second feedforward microphone 274.

[0155] In other embodiments, the second earphone body 200 may not be provided with the first bracket 271 and the second bracket 272. In this case, the first duct 2711 and the second duct 2721 may be formed by the third housing 210.

[0156] In other embodiments, the second earphone body 200 may not be provided with the first bracket 271 and the second bracket 272. In this case, the sound pickup surface of the first feedforward microphone 273 is positioned opposite the first sound pickup hole 214, while the sound pickup surface of the second feedforward microphone 274 is positioned opposite the second sound pickup hole 215. The first feedforward microphone 273 picks up external noise from the second earphone body 200 through the first sound pickup hole 214, while the second feedforward microphone 274 picks up external noise from the second earphone body 200 through the second sound pickup hole 215.

[0157] In some embodiments, the first sound pickup hole 214 and the second sound pickup hole 215 may be arranged at intervals along the first direction. The first sound pickup hole 214 and the second sound pickup hole 215 may be located on both sides of the second symmetry plane.

[0158] In some embodiments, the first sound pickup hole 214 and the second sound pickup hole 215 may also be symmetrical about the 0-0 plane of the earphone 1000 .

[0159] It can be understood that, compared to a solution in which only one of the first sound pickup hole 214 or the second sound pickup hole 215 is provided, the first sound pickup hole 214 and the second sound pickup hole 215 are symmetrical about the 0-0 plane. This ensures that, regardless of whether the user wears the earphone 1000 on the left or right ear, one of the first sound pickup hole 214 and the second sound pickup hole 215 is always located on the side away from the skin. This ensures that, without distinguishing between left and right ears, when the earphone 1000 is operating, the first feedforward microphone 273 or the second feedforward microphone 274 located on the side away from the user's skin can better pick up ambient noise, achieving a better active noise reduction effect. Furthermore, regardless of whether the user wears the earphone 1000 on the left or right ear, the first sound pickup hole 214 and the second sound pickup hole 215 can always maintain one facing the ground and one facing away from the ground. If the sound pickup hole facing away from the ground is clogged by sweat dripping into it, the other sound pickup hole can still function normally, achieving active noise reduction.

[0160] It should be noted that when the first sound pickup hole 214 and the second sound pickup hole 215 are symmetrical about the 0-0 plane of the earphone 1000, the center of the first sound pickup hole 214 and the center of the second sound pickup hole can be symmetrical about the 0-0 plane. The projection of the first sound pickup hole 214 on the 0-0 plane and the projection of the second sound pickup hole 215 on the 0-0 plane can partially overlap.

[0161] In some embodiments, a line connecting the center of the first sound pickup hole 214 and the center of the second sound pickup hole 215 may form an angle with the 0-0 plane, and the angle may be in a range of 88° to 90°.

[0162] In some embodiments, the projection of the center of the first sound pickup hole on the symmetry plane is a first projection, the projection of the center of the second sound pickup hole on the symmetry plane is a third projection, and the first projection and the third projection coincide with each other.

[0163] In some embodiments, the projection of the first sound pickup hole 214 on the 0-0 plane may not completely overlap with the projection of the second sound pickup hole 215 on the 0-0 plane. The distance between the first projection and the third projection may be less than 0.5 mm.

[0164] The following describes two working modes of the first feedforward microphone 273 and the second feedforward microphone 274 for active noise reduction:

[0165] (1) During the active noise reduction operation of the earphone 1000, the first feedforward microphone 273 and the second feedforward microphone 274 can work simultaneously to pick up the sounds near the first sound pickup hole 214 and the second sound pickup hole 215. The two channels of data are fused through an algorithm to perform active noise reduction.

[0166] (2) When the low-frequency signal of one of the first feedforward microphone 273 and the second feedforward microphone 274 is greater than the low-frequency signal of the other, the circuit switch can automatically select the signal with the larger low-frequency signal as the input signal of the algorithm to perform active noise reduction. The signal with a larger low-frequency signal has less wind noise, which is conducive to improving the effect of active noise reduction.

[0167] In some embodiments, the first sound pickup hole 214 may be located on the side of the long axis L1 close to the first connection hole 218. Similarly, the second sound pickup hole 215 may be located on the side of the long axis L1 close to the first connection hole 218. For example, the first sound pickup hole 214 and the second sound pickup hole 215 may both be located on the side of the long axis L1 close to the first connection hole 218, and the first sound pickup hole 214 and the second sound pickup hole 215 may be symmetrical about the symmetry plane 0-0 of the earphone 1000. Figure 2 As shown, the first connecting hole 218 is used to allow one end of the connecting arm 300 to extend into the interior of the second earphone body 200 .

[0168] It can be understood that, compared with the solution in which the long axis L1 passes through the first sound pickup hole 214 and the second sound pickup hole 215, the first sound pickup hole 214 and the second sound pickup hole 215 are arranged on one side of the long axis L1. When the user wears the earphones 1000, the risk of sweat dripping into the first sound pickup hole 214 or the second sound pickup hole 215 can be reduced, thereby avoiding the first sound pickup hole 214 or the second sound pickup hole 215 being blocked by sweat and affecting the sound pickup effect.

[0169] In some embodiments, along the first direction, the projection of the center of the first pickup hole 214 on the symmetry plane is a first projection, the projection of the center of the first connecting hole 218 on the symmetry plane is a second projection, the distance between the first projection and the second projection is A1, and the distance between the second projection and the center of the outer surface of the second earphone body 200 is A2.

[0170] The relationship between A1 and A2 satisfies:

[0171] It will be appreciated that when the user wears the earphones 1000, the second earphone body 200 is located outside the user's ear, facing away from the first earphone body 100. The connecting arm 300 is buckled onto the outer edge of the user's ear, extending from the cavum concha to the back of the ear. The first sound pickup hole 214 can be positioned closer to the connecting arm 300 than to the user's skin. This allows the first sound pickup hole to be less obstructed around the user's skin. When the microphone in the second earphone body 200 picks up sound through the first sound pickup hole 214, it encounters less external obstruction.

[0172] like Figure 13As shown, when the second circuit board 280 is disposed between the first feedforward microphone 273 and the first bracket 271, the second circuit board 280 may be provided with a first ventilation hole 281, which is connected to the first duct 2711. In this way, sound near the first sound pickup hole 214 can pass through the first duct 2711 and the first ventilation hole 281 to reach the sound pickup surface of the first feedforward microphone 273 and be picked up by the first feedforward microphone 273.

[0173] In some embodiments, when the second circuit board 280 is disposed between the second feedforward microphone 274 and the second bracket 272 , the second circuit board 280 may be provided with a second ventilation hole (not shown). The second ventilation hole is connected to the second pipe 2721 .

[0174] In some embodiments, the second earphone body 200 may further include a third waterproof breathable membrane 275. The third waterproof breathable membrane 275 may be disposed between the first bracket 271 and the first feedforward microphone 273. The third waterproof breathable membrane 275 may cover the first pipe 2711. Exemplarily, the third waterproof breathable membrane 275 may be disposed between the first bracket 271 and the second circuit board 280. It is understood that by providing the third waterproof breathable membrane 275, while not affecting the sound pickup by the first feedforward microphone 273, it is also possible to prevent external dust and moisture from entering the second earphone body 200 through the first pipe 2711, thereby avoiding affecting the operation of the internal components of the second earphone body 200.

[0175] In some embodiments, the second earphone body 200 may further include a fourth waterproof breathable membrane (not shown). The fourth waterproof breathable membrane may be fixedly connected to the second bracket 272 and cover the second pipe 2721 .

[0176] like Figure 13 As shown, the first pipe 2711 may be curved, that is, the first pipe 2711 may include a curved pipe. For example, the first pipe 2711 may include a first section 2712 and a second section 2713, the first section 2712 being connected to the second section 2713 at an end away from the first feedforward microphone 273. The central axis L3 ( Figure 13 The middle axis L4 of the second segment 2713 ( Figure 13 The first pipe 2711 may be in an L-shape or a V-shape as a whole.

[0177] It is understood that, compared to the first duct 2711 being a straight duct as a whole, the curved first duct 2711 can have a wind noise-blocking effect. When the airflow near the first sound pickup hole 214 passes through the first duct 2711, the curved duct can buffer the airflow, and the wind noise in the sound picked up by the first feedforward microphone 273 is relatively small. In other embodiments, the first duct 2711 as a whole can also be in an "N" shape, "S" shape, "Z" shape, or "C" shape, etc. It is understood that the shape of the first duct 2711 can be adjusted according to actual conditions, and the first duct 2711 can include multiple curved ducts or a single curved duct.

[0178] In some embodiments, the diameter of the first conduit 2711 can be greater than 0.6 mm. For example, the diameter of the first conduit 2711 can be 0.6 mm, 0.7 mm, 0.9 mm, or 1.2 mm.

[0179] In some embodiments, the second pipe 2721 may also be curved. The configuration of the second pipe 2721 may refer to the configuration of the first pipe 2711 and will not be repeated here.

[0180] In other embodiments, the first sound pickup hole 214 and the second sound pickup hole 215 may also be located on a side of the long axis L1 away from the first connecting hole 218 .

[0181] In other embodiments, the third housing 210 may further be provided with a third sound pickup hole (not shown) and a fourth sound pickup hole (not shown). The third sound pickup hole and the fourth sound pickup hole are located on the long axis L1 of the second earphone body 200 and are symmetrical about the symmetry plane 0-0 of the earphone 1000. At this time, the first bracket 271 may also further include a third pipe (not shown), one end of the third pipe is arranged opposite to the third sound pickup hole, and the other end is connected to the first pipe 2711. The second bracket 272 may also further include a fourth pipe (not shown), one end of the fourth pipe is arranged opposite to the fourth sound pickup hole, and the other end is connected to the second pipe 2721. In this way, the first feedforward microphone 273 can simultaneously pick up the ambient sound near the first sound pickup hole 214 and the third sound pickup hole, and the second feedforward microphone 274 can simultaneously pick up the sound near the second sound pickup hole 215 and the fourth sound pickup hole.

[0182] In other embodiments, the number of feedforward microphones can be one. The number of sound pickup holes can also be one. The feedforward microphone can be provided on the connecting arm 300, and the sound pickup hole can also be provided on the connecting arm 300. This eliminates the need to distinguish between left and right ears when wearing the headset 1000. Furthermore, the number of feedforward microphones can be reduced, thereby reducing the size and weight of the headset 1000, thereby facilitating miniaturization and lightweighting of the headset 1000.

[0183] In other embodiments, the second earphone body 200 may also be provided with a first microphone (not shown) and a second microphone (not shown) for phone calls. The first microphone and the second microphone may be used to pick up the user's voice. The first microphone may pick up the user's voice through the first pickup hole 214. The second microphone may pick up the user's voice through the second pickup hole 215. For example, the configuration of the first microphone may refer to the configuration of the first feedforward microphone. The configuration of the second microphone may refer to the configuration of the second feedforward microphone.

[0184] like Figure 14 As shown, the charging terminal 291 may include a first electrode 2911 and a second electrode 2912. The first electrode 2911 and the second electrode 2912 are both electrically connected to the battery 240. The first electrode 2911 and the second electrode 2912 are both embedded in the housing 209 of the second earphone body 200, with one end exposed relative to the outer surface of the housing 209 of the second earphone body 200. The first electrode 2911, the second electrode 2912, the first sound pickup hole 214, and the second sound pickup hole 215 are spaced apart.

[0185] For example, the first electrode 2911 can be fixedly connected to the third housing 210. One end of the first electrode 2911 can be exposed relative to the outer surface of the housing 209 of the second earphone body 200 at the first charging port 216. The second electrode 2912 can be fixedly connected to the third housing 210. One end of the second electrode 2912 can be exposed relative to the outer surface of the housing 209 of the second earphone body 200 at the second charging port 217.

[0186] In other embodiments, the first charging hole 216 and the second charging hole 217 may also be provided on the fourth housing 220 , and the first electrode 2911 and the second electrode 2912 may also be fixedly connected to the fourth housing 220 , which is not limited in this application.

[0187] When the user charges the earphones 1000, the first electrode 2911 and the second electrode 2912 serve as the positive and negative electrodes, respectively, for electrically connecting to the positive and negative electrodes of the battery 240. This application does not specify the correspondence between the first electrode 2911 and the second electrode 2912 and the positive and negative electrodes. It is understood that the first electrode 2911 can serve as the positive electrode and the second electrode 2912 as the negative electrode, or the first electrode 2911 can serve as the negative electrode and the second electrode 2912 can serve as the positive electrode.

[0188] The first electrode 2911 and the second electrode 2912 can be electrically connected to the second circuit board 280. The battery 240 can be electrically connected to the second circuit board 280. The second circuit board 280 can also be used for transmitting electrical signals between the first electrode 2911, the second electrode 2912 and the battery 240.

[0189] In some embodiments, the first electrode 2911 and the second electrode 2912 may be symmetrical about the OO plane, so as to facilitate symmetrical distribution of the weight of the second earphone body 200 about the OO plane.

[0190] like Figure 14 As shown, the second earphone body 200 may further include a second magnet 299. The second magnet 299 may be disposed within the second space 201 of the second earphone body 200 and fixedly connected to the third housing 210. The second magnet 299 may be used to assist in quickly positioning the earphone 1000 when the earphone 1000 is charging in the paired earphone compartment 1000. For example, the second magnet 299 may be located on a side of the battery 240 away from the first connection hole 218.

[0191] In some embodiments, the number of the second magnets 299 may be two, and the two second magnets 299 may be symmetrical about the symmetry plane 0-0 of the earphone 1000.

[0192] In other embodiments, the second magnet 299 may also be fixedly connected to the fourth housing 220 .

[0193] In other embodiments, the number of the second magnet 299 may be one, or three or more.

[0194] Figure 15 yes Figure 5 A structural diagram of an embodiment of a mainboard bracket 250 is shown in FIG.

[0195] like Figure 15 As shown, the motherboard bracket 250 may include a main body 251, an extension 252, a first limiting portion 253, and a second limiting portion 254. The main body 251 may be annular. The main body 251 has a first end face 2511, a second end face 2512, an inner side face 2513, and an outer side face 2514. The first end face 2511 and the second end face 2512 are disposed opposite each other, while the inner side face 2513 and the outer side face 2514 are disposed opposite each other. The inner side face 2513 is connected between the first end face 2511 and the second end face 2512. The inner side face 2513 encloses a receiving space 255. The outer side face 2514 is connected between the first end face 2511 and the second end face 2512. The extension 252 is connected to the outer side face 2514 and is located at the end of the outer side face 2514 that is closest to the first end face 2511. The first limiting portion 253 and the second limiting portion 254 are both connected to the inner side surface 2513 of the main body 251 and are spaced apart from each other. The first limiting portion 253 and the second limiting portion 254 divide the accommodation space 255 into a first accommodation space 2516, a second accommodation space 2517 and a third accommodation space 2518.

[0196] In some embodiments, the motherboard bracket 250 may further include a second positioning post 256. The second positioning post 256 may be fixedly connected to the second end surface 2512 of the main body 251. The number of second positioning posts 256 may be one or more. When there are multiple second positioning posts 256, the multiple second positioning posts 256 are spaced apart.

[0197] Figure 16 yes Figure 5 FIG. 1 is a schematic diagram of an assembly of a circuit board 261 and a mainboard bracket 250 according to an embodiment of the present invention. Figure 17 yes Figure 16 A schematic diagram of the structure shown in FIG. 1 at another angle.

[0198] like Figure 16 and Figure 17 As shown, the mainboard 260 may include a circuit board 261 and electronic components 262 disposed on the circuit board 261. The circuit board 261 may serve as a carrier for electronic components. For example, the electronic components may be active components such as chips, or passive components such as capacitors, inductors, and resistors. It is understood that the electronic components 262 may be selected and combined in different types and quantities to enable the mainboard 260 to have specific functions. Those skilled in the art will be able to select the type and quantity of electronic components according to actual needs, and this application does not limit this.

[0199] The circuit board 261 can be fixedly connected to the second end surface 2512 of the motherboard bracket 250. For example, the circuit board 261 can include a first surface 2611 and a second surface 2612 disposed opposite each other. The first surface 2611 is fixedly connected to the second end surface 2512 of the motherboard bracket 250. The electronic components 262 can be located on either the first surface 2611 or the second surface 2612. In other words, both sides of the circuit board 261 can be used to house the electronic components 262, and those skilled in the art can customize their configuration as needed.

[0200] In some embodiments, the electronic device 262 may include an accelerometer 2621 (ACC). The accelerometer 2621 may be fixedly connected to the second surface 2612 of the circuit board 261. The accelerometer 2621 may be used to measure the acceleration of the second earphone body 200, thereby determining the spatial position of the second earphone body 200. In other words, the accelerometer 2621 may be used to determine the spatial motion state of the second earphone body 200.

[0201] In some embodiments, the electronic device 262 may further include an electrical connector 2622. The electrical connector 2622 may be used to achieve electrical connection between the circuit board 261 and other signal transmission structures. For example, the mainboard 260 may include a board-to-board connector (BTB) fixedly connected to the second side 2612 of the circuit board 261.

[0202] In some embodiments, the electronic device 262 may further include a main chip 2623. The main chip 2623 may be used to control functions of the headset 1000. For example, the main chip 2623 may be fixedly connected to the second surface 2612 of the circuit board 261.

[0203] In some embodiments, the circuit board 261 may be provided with a relief hole 2613 (e.g. Figure 16 ), when the circuit board 261 can be fixedly connected to the mainboard bracket 250, the second positioning post 256 can be located in the avoidance hole 2613. It can be understood that by providing the avoidance hole 2613 and the second positioning post 256, the avoidance hole 2613 and the second positioning post 256 cooperate with each other to facilitate rapid positioning during the assembly process of the circuit board 261, and also prevent the circuit board 261 from displacement in subsequent assembly processes.

[0204] Figure 18 yes Figure 5 FIG. 1 is a schematic diagram of a partial structural assembly of the second earphone body 200 shown in FIG. Figure 19 yes Figure 18 FIG. 1 is a cross-sectional view of an embodiment of the second earphone body 200 at the section line EE.

[0205] like Figure 18 and Figure 19 As shown, the motherboard bracket 250 can be fixedly connected to the inner surface 212 of the third housing 210. The circuit board 261 of the motherboard 260 is fixedly connected to the motherboard bracket 250. In this way, the motherboard bracket 250 can be used to achieve the purpose of fixing the motherboard 260.

[0206] For example, the third housing 210 may have a boss 219. The boss 219 may be formed by a protrusion from the inner surface 212 of the third housing 210. The extension 252 of the motherboard bracket 250 may be fixedly connected to the boss 219. Along the direction from the third housing 210 to the fourth housing 220, the projection of the extension 252 on the boss 219 at least partially overlaps with the boss 219. The motherboard bracket 250 can be used to support the motherboard 260, and can also be used to prevent the motherboard 260 from shaking under the action of external forces, which may cause interference with the operation of the motherboard 260 and interference with other devices inside the second earphone body 200.

[0207] In some embodiments, the mainboard 260 and the battery 240 are stacked along the Y-axis. For example, the mainboard 260 may be located on a side of the battery 240 away from the third housing 210 .

[0208] In some embodiments, the battery 240 may be partially located within the second accommodation space 2517. A portion of the main body 251, the first limiting portion 253, and the second limiting portion 254 of the mainboard bracket 250 are disposed around the battery 240. This further limits the position of the battery 240 and reduces the risk of displacement of the battery 240 in the XZ directions.

[0209] In some embodiments, the antenna module 230 , the battery 240 , and the mainboard 260 may be stacked along the Y-axis.

[0210] The second circuit board 280 is connected to the main board 260 and is electrically connected to the main board 260. For example, the second circuit board 280 is connected to the electrical connector 2622 ( Figure 16 (The electrical connector 2622 is schematically shown in the figure), thereby achieving electrical connection with the mainboard 260. It is understood that the battery 240 can be electrically connected to the mainboard 260 via a flexible circuit board or conductive traces. When the user charges the headset 1000, the current can pass through the first electrode 2911 and the second electrode 2912, the second circuit board 280, the mainboard 250, and finally enter the battery 240 to achieve energy storage. The second circuit board 280 can also be used to achieve electrical connection between the first feedforward microphone 273 and the second feedforward microphone 274 and the mainboard 250.

[0211] Figure 20 yes Figure 18 FIG. 1 is a cross-sectional view of an embodiment of the second earphone body 200 at the section line FF.

[0212] like Figure 20 As shown, along the Y-axis direction, there is a gap between the projection of the mainboard 260 onto the plane where the mainboard bracket 250 is located and the mainboard bracket 250. That is, a first gap 266 can be enclosed between the mainboard bracket 250 and the mainboard 260. The first gap 266 can be used to arrange wiring. For example, the feed line 2314 of the antenna module 230 can be connected to the mainboard 260 through the gap between the third housing 210 and the battery 240 and the first gap 266, thereby powering the antenna module 230. It can be understood that by setting the first gap 266, it can help fix the position of the feed line 2314 of the antenna module 230, thereby improving the reliability of the electrical connection between the antenna module 230 and the mainboard 260.

[0213] In other embodiments, a second gap (not shown) may be defined between the mainboard bracket 250 and the mainboard 260 , and the second circuit board 280 may pass through the second gap to be electrically connected to the mainboard 260 .

[0214] Figure 21 yes Figure 5 FIG. 1 is a schematic diagram of a partial structural assembly of the second earphone body 200 shown in FIG. Figure 22 yes Figure 21 sectional view of one embodiment of the structure shown in FIG. 1 at section line GG.

[0215] like Figure 21 and Figure 22 As shown, the second capacitive sensor 290 can be provided on a side of the mainboard 260 away from the battery 240. The second capacitive sensor 290 can be spaced apart from the first feedforward microphone 273 and the second feedforward microphone 274. The second capacitive sensor 290 can be connected to the mainboard 260 and electrically connected to the mainboard 260. For example, the second capacitive sensor 290 can be electrically connected to the mainboard 260 via a flexible printed circuit board. In some embodiments, the second capacitive sensor 290 can also be referred to as a proximity sensor and can be used to detect whether the user is wearing the headset 1000. When the second capacitive sensor 290 is close to the user's skin, the capacitance of the second capacitive sensor 290 changes, generating an electrical signal. The distance between the second capacitive sensor 290 and the user can be determined based on the change in the electrical signal.

[0216] In some embodiments, along the Y-axis direction, the antenna module 230 , the battery 240 , the mainboard 260 , and the second capacitive sensor 290 may be stacked.

[0217] Figure 23 yes Figure 1 FIG2 is a schematic structural diagram of the earphone 1000 at another angle.

[0218] like Figure 23 As shown, the first sound pickup holes 214 and the second sound pickup holes 215 can be spaced apart along the first direction and located on either side of the first connecting hole 218. The first connecting hole 218 can be used to allow the end of the connecting arm 300 to extend into the interior of the second earphone body 200. In other words, the first sound pickup holes 214 and the second sound pickup holes 215 can be located on either side of the connecting arm 300. The first sound pickup holes 214 and the second sound pickup holes 215 are located on the side of the long axis L1 that is closer to the connecting arm 300.

[0219] In this application, an earphone 1000 is specifically described in conjunction with relevant drawings. The earphone 1000 includes a first earphone body 100, a connecting arm 300, and a second earphone body 200. The connecting arm 300 is connected between the first earphone body 100 and the second earphone body 200. The first earphone body 100 is used for sound production. The second earphone body 200 is used for picking up noise. The second earphone body 200 includes a shell and a first feedforward microphone 273. The first feedforward microphone 273 is arranged inside the shell of the second earphone body 200. The shell 209 of the second earphone body 200 is provided with a first pickup hole 214. The first feedforward microphone 273 picks up external noise of the second earphone body 200 through the first pickup hole 214. The length of the shell 209 of the second earphone body 200 in the first direction is greater than the length in the second direction. The second earphone body 200 includes a long axis, which is the line connecting the two farthest end points of the shell 209 of the second earphone body 200 in the first direction. The first pickup hole 214 is located on the side of the long axis close to the connecting arm 300. The second direction is different from the first direction. The second direction is the direction in which the end of the connecting arm 300 connected to the second earphone body 200 points to the center of the second earphone body 200.

[0220] It can be understood that, compared with the solution in which the long axis L1 passes through the first sound pickup hole 214, the first sound pickup hole 214 is arranged on the side of the long axis L1 close to the connecting arm 300. When the user wears the earphones 1000, the risk of sweat dripping into the first sound pickup hole 214 or the second sound pickup hole 215 can be reduced, thereby avoiding the first sound pickup hole 214 or the second sound pickup hole 215 being blocked by sweat and affecting the active noise reduction effect.

[0221] Several implementations of the first earphone body 100 will be described in detail below with reference to the accompanying drawings. Figure 24 yes Figure 1 A structural schematic diagram of an embodiment of the first earphone body 100 is shown in FIG. Figure 25 yes Figure 24 FIG. 1 is a schematic diagram of a partial structural decomposition of the first earphone body 100 shown in FIG.

[0222] like Figure 24 and Figure 25As shown, the first earphone body 100 may include a housing 109, a speaker 30 (Speaker), a feedback microphone 40 (Feedback microphone, FB mic), a bone sensor 50 (Vi brate pickup sensor, VPU), a first capacitive sensor 60 (Capt ive sensor, CAP), a first circuit board 70 and a harness support 80. The speaker 30 (Speaker), the feedback microphone 40 (Feedback microphone, FB mic), the bone sensor 50 (Vi brate pickup sensor, VPU), the first capacitive sensor 60 (Capt ive sensor, CAP), the first circuit board 70 and the harness support 80 may all be disposed inside the housing 109 of the first earphone body 100.

[0223] For example, the housing 109 of the first earphone body 100 may include a first housing 10 and a second housing 20. The first housing 10 is connected to the second housing 20, enclosing a first space 101. The speaker 30, the feedback microphone 40, the bone sensor 50, the first capacitive sensor 60, the first circuit board 70, and the wiring harness support 80 may all be disposed within the first space 101.

[0224] In some implementations, the housing 109 of the first earphone body 100 may be spherical.

[0225] In some embodiments, the diameter of the housing 109 of the first earphone body 100 is in the range of 12 mm to 15 mm. For example, the diameter of the spherical outer surface can be 12.3 mm, 13 mm, or 14.3 mm.

[0226] Figure 26 yes Figure 24 FIG. 1 is a partial cross-sectional view of an embodiment of the first earphone body 100 at the section line HH.

[0227] like Figure 26 As shown, the first housing 10 may have an outer surface 11, an inner surface 12, and a first end surface 13. The outer surface 11 and the inner surface 12 are disposed opposite each other, with the inner surface 12 facing the first space 101. The first end surface 13 is connected between the outer surface 11 and the inner surface 12. The second housing 20 may have an outer surface 21, an inner surface 22, and a second end surface 23. The outer surface 21 and the inner surface 22 are disposed opposite each other, with the inner surface 22 facing the first space 101. The second end surface 23 is connected between the outer surface 21 and the inner surface 22.

[0228] When the first housing 10 is connected to the second housing 20, the first end surface 13 of the first housing 10 is connected to the second end surface 23 of the second housing 20. The outer surface 11 of the first housing 10 and the outer surface 21 of the second housing 20 can constitute the outer surface of the housing 109 of the first earphone body 100. The inner surface 12 of the first housing 10 and the inner surface 22 of the second housing 20 constitute the inner surface of the housing 109 of the first earphone body 100. The inner surface 12 of the first housing 10 and the inner surface 22 of the second housing 20 enclose a first space 101.

[0229] In some embodiments, the outer surface 11 of the first housing 10 is hemispherical, and the outer surface 21 of the second housing 20 is hemispherical. The outer surface 11 of the first housing 10 and the outer surface 21 of the second housing 20 have the same radius.

[0230] In some embodiments, the first housing 10 and the second housing 20 may be fixedly connected by gluing or snapping.

[0231] like Figure 26 As shown, the speaker 30 can be fixedly connected to the inner surface 12 of the first shell 10. The speaker 30 divides the first space 101 enclosed by the first shell 10 and the second shell 20 into a first sub-cavity 102 and a second sub-cavity 103. The sound-emitting surface 31 of the speaker 30 faces the first sub-cavity 102. The first shell 10 can be provided with a first through hole 14, which connects the external space of the first earphone body 100 (that is, the environment in which the first earphone body 100 is located) and the first sub-cavity 102. The first through hole 14 is used to transmit the sound emitted by the speaker 30 out of the first earphone body 100. When the user wears the earphone 1000, the first through hole 14 is located in the user's cavum concha, and the sound emitted by the speaker 30 can enter the user's ear through the first through hole 14 and be received by the user. Exemplarily, the first through hole 14 can be arranged opposite to the speaker 30.

[0232] In some embodiments, the first housing 10 may have a first boss 15. The first boss 15 may be located in the first sub-cavity 102. The first boss 15 may be formed by the inner surface 12 of the first housing 10 protruding toward the first sub-cavity 102, and the surface of the first boss 15 is a part of the inner surface 12 of the first housing 10. The speaker 30 may be fixedly connected to the first boss 15. Exemplarily, the first boss 15 may be annular, and the first boss 15 is connected to the speaker 30 in a surrounding manner. In this way, the speaker 30 can independently separate the first sub-cavity 102 and the second sub-cavity 103, that is, the first sub-cavity 102 and the second sub-cavity 103 can be arranged at intervals. The first sub-cavity 102 can be used as a front sound cavity of the speaker 30, and the speaker 30 is used to transmit and interact sound with the outside of the first earphone body 100 through the first through hole 14. The second sub-cavity 103 can be used as a rear sound cavity of the speaker 30.

[0233] The second housing 20 may be provided with a pressure relief hole 24. The pressure relief hole 24 is used to connect the second sub-cavity 103 with the external space of the first earphone body 100 (i.e., the environment of the first earphone body 100), thereby balancing the air pressure in the second sub-cavity 103. For example, there may be two pressure relief holes 24.

[0234] In some embodiments, the two pressure relief holes 24 are positioned symmetrically about the OO plane. It is understood that by symmetrically arranging the two pressure relief holes 24, the user does not need to distinguish between the left and right ears when using the earphones 1000. Furthermore, the symmetrical distribution of the two pressure relief holes 24 ensures that if sweat blocks one of the pressure relief holes 24 while the earphones 1000 are worn, the other pressure relief hole 24 remains operational, balancing the air pressure within the second sub-cavity 103.

[0235] In some embodiments, the second housing 20 may be provided with a second connection hole 26. The second connection hole 26 connects the outer surface 21 of the second housing 20 and the inner surface 22 of the second housing 20. Figure 2 As shown, the second connecting hole 26 can be used to allow one end of the connecting arm 300 to extend into the interior of the first earphone body 100 .

[0236] In some embodiments, the two pressure relief holes 24 are spaced apart along the first direction and are located on both sides of the second connection hole 26 .

[0237] In some embodiments, the line connecting the first through hole 14 and the pressure relief hole 24 is a first line, and the line connecting the second connection hole 26 and the first through hole 14 is a second line. The first line and the second line form an angle. When the speaker 30 emits a sound, the sound leakage on the first line is greater than the sound leakage on the second line. The first through hole 14 can form a dipole sound field with the pressure relief hole 24. For example, when the user wears the earphones 1000, the second connection hole 26 faces the front side of the user, and the two pressure relief holes 24 are arranged on both sides of the second connection hole 26, which can reduce the sound leakage on the front side of the user.

[0238] like Figure 26 As shown, the speaker 30 can be fixed at the section with the largest diameter of the first housing 10. In other embodiments, the speaker 30 can also be fixedly connected to the inner surface 22 of the second housing 20 and fixedly connected to the section with the largest diameter of the second housing 20.

[0239] In some embodiments, the speaker 30 is a dual-diaphragm speaker. Compared to traditional dynamic-coil and balanced-iron speakers, the dual-diaphragm speaker 30 can effectively improve the low-frequency effect in an open sound field, compensating for the disadvantage that the sound outlet (i.e., the first through hole 14) of the earphone 1000 is a certain distance from the ear canal.

[0240] In some embodiments, the first earphone body 100 may further include a dust screen 90. The dust screen 90 is connected to the first housing 10 and disposed within the first through hole 14. The dust screen 90 covers the first through hole 14. It will be appreciated that the provision of the dust screen 90 prevents impurities from outside the earphone 1000 from entering the first subcavity 102 of the first earphone body 100 through the first through hole 14 and interfering with the operation of the speaker 30. In some embodiments, the dust screen 90 may be made of metal, which provides improved strength.

[0241] Exemplarily, the dust screen 90 may include a main body 91 and two connecting portions 92. The connecting portions 92 are connected to the main body 91. The two connecting portions 92 are spaced apart. The first housing 10 is provided with a second through hole 16 and a third through hole 17 spaced apart. The second through hole 16 and the third through hole 17 surround the first through hole 14. The two connecting portions 92 are respectively connected to the second through hole 16 and the third through hole 17. The main body 91 is a mesh structure that covers the first through hole 14.

[0242] In some embodiments, the first earphone body 100 may further include a first waterproof breathable membrane 93. The first waterproof breathable membrane 93 may be connected to the first housing 10 and cover the first through hole 14. Exemplarily, the first waterproof breathable membrane 93 may be disposed between the main body 91 of the dustproof net 90 and the first housing 10. It is understood that by providing the first waterproof breathable membrane 93, the communication between the first sub-cavity 102 and the external space of the first earphone body 100 is achieved, the air pressure in the first sub-cavity 102 is balanced, and at the same time, external dust and water vapor are prevented from entering the first sub-cavity 102 through the first through hole 14, thereby avoiding affecting the operation of the speaker 30.

[0243] In some embodiments, the area of ​​the first through hole 14 is 5 mm 2 Up to 8mm 2 For example, the area of ​​the first through hole can be 5mm 2 , 6.5mm 2 or 8mm 2 .

[0244] In some embodiments, the first earphone body 100 may further include a second waterproof, breathable membrane 94. The second waterproof, breathable membrane 94 is connected to the inner surface 22 of the second housing 20 and covers the pressure relief hole 24. It will be appreciated that the provision of the second waterproof, breathable membrane 94 not only establishes communication between the second sub-cavity 103 and the external space of the first earphone body 100, balancing the air pressure within the second sub-cavity 103, but also prevents external dust and moisture from entering the second sub-cavity 103 through the first through-hole 14, thereby preventing the internal components of the first earphone body 100 from functioning.

[0245] In some embodiments, there are two pressure relief holes 24 and two second waterproof breathable membranes 94. The two pressure relief holes 24 and the two second waterproof breathable membranes 94 are provided in a one-to-one correspondence.

[0246] In some embodiments, the area of ​​the pressure relief hole 24 is smaller than the area of ​​the first through hole 14. When there are multiple pressure relief holes 24, the area of ​​the pressure relief hole 24 is the sum of the areas of the multiple pressure relief holes 24.

[0247] In some embodiments, the area of ​​the pressure relief hole 24 is 1 mm 2 Up to 3mm 2 For example, the area of ​​the pressure relief hole 24 can be 1mm 2 , 2mm 2 or 3mm 2 .

[0248] Figure 27 yes Figure 24 FIG. 1 is a partial cross-sectional view of an embodiment of the first earphone body 100 at section line II.

[0249] like Figure 27 As shown, the feedback microphone 40 can be arranged near the sound-emitting position of the speaker 30. For example, the feedback microphone 40 can be arranged in the first sub-cavity 102. The feedback microphone 40 can be arranged around the first through-hole 14. When the user wears the earphones 1000, the feedback microphone 40 can be located in the concha cavity of the user, near the ear canal. The sound near the user's ear canal can be picked up by the feedback microphone 40 through the first through-hole 14. It can be understood that by providing the feedback microphone 40 and arranging the feedback microphone 40 near the speaker 30, the feedback microphone 40 can be used to pick up the noise entering the vicinity of the user's ear canal, and the sound on the speaker 30 side is fed back to the chip to output an anti-phase sound wave to offset the noise in the ear, and the user experience is better.

[0250] In some embodiments, the first earphone body 100 may further include a first magnet 95. For example, the first magnet 95 may be located within the first subcavity 102 and fixedly connected to the inner wall of the first housing 10. When the earphones 1000 are stored in an earphone case, the first magnet 95 may cooperate with magnets within the case to generate an attractive force, thereby securing the first earphone body 100 in place.

[0251] In some embodiments, the first magnet 95 is in the shape of a curved strip. This allows the first magnet to fit more closely to the hemispherical first housing 10, and the components within the first sub-cavity 102 can be arranged more compactly. In other embodiments, the first magnet 95 can be in other shapes, such as a circle.

[0252] Figure 28 yes Figure 25 A structural schematic diagram of an embodiment of a wiring harness bracket 80 is shown in FIG. Figure 29 yes Figure 28 FIG. 8 is a schematic structural diagram of the wiring harness bracket 80 at another angle.

[0253] like Figure 28 and Figure 29 As shown, the wiring harness support 80 may include a support body 81 and a plurality of baffles 82. The support body 81 includes a top surface 811, a bottom surface 812, and a peripheral side surface 813. The top surface 811 and the bottom surface 812 are arranged opposite each other, and the peripheral side surface 813 is connected between the top surface 811 and the bottom surface 812. The wiring harness support 80 is provided with a wire threading channel 83, a first air duct 84, and a second air duct 85. The wire threading channel 83, the first air duct 84, and the second air duct 85 are arranged in an interval and are not connected to each other. The wire threading channel 83 connects the top surface 811 and the bottom surface 812. The first air duct 84 connects the bottom surface 812 and the peripheral side surface 813. The second air duct 85 connects the bottom surface 812 and the peripheral side surface 813. The top surface 811 of the support body 81 serves as the top surface of the wiring harness support 80. The peripheral side surface 813 of the support body 81 serves as the peripheral side surface of the wiring harness support 80.

[0254] A plurality of baffles 82 are fixedly connected to the bottom surface 812 of the bracket body 81. The plurality of baffles 82 surround the threading channel 83 and are spaced apart from each other. It is understood that the number of baffles 82 can be adjusted according to actual conditions.

[0255] In some embodiments, the wire harness support 80 may be provided with a receiving slot 86. The receiving slot 86 can be used to accommodate the bone sensor 50. For example, the receiving slot 86 may be formed as an opening on the bottom surface 812 and the peripheral side surface 813 of the support body 81. The receiving slot 86 may be spaced apart from the wire threading channel 83, the first air duct 84, and the second air duct 85.

[0256] Figure 30 yes Figure 24 FIG. 1 is a partial cross-sectional view of an embodiment of the first earphone body 100 at the section line HH.

[0257] like Figure 30As shown, the wiring harness bracket 80 is fixedly connected to the inner surface 22 of the second shell 20. Exemplarily, the circumferential side surface 813 of the wiring harness bracket 80 is connected to the inner surface 22 of the second shell 20. It is understandable that the circumferential side surface 813 of the wiring harness bracket 80 can be designed according to the shape of the inner surface 22 of the second shell 20, so that the shape of the circumferential side surface 813 roughly matches the shape of the inner surface 22 of the second shell 20. For example, the wiring harness bracket 80 can be roughly truncated cone-shaped. In this way, the connection area between the wiring harness bracket 80 and the second shell 20 can be increased and the connection strength can be enhanced. In some embodiments, the wiring harness bracket 80 can be fixedly connected to the second shell 20 by gluing.

[0258] The bottom surface 812 of the bracket body 81 faces the speaker 30. The first and second air ducts 84, 85 can be disposed opposite and connected to the two pressure relief holes 24, respectively. This allows the second sub-chamber 103 to communicate with the outside world via the first and second air ducts 84, 85, and the two pressure relief holes 24, achieving pressure balance within the second sub-chamber 103.

[0259] In some embodiments, the second connection hole 26 and the wire threading channel 83 of the harness bracket 80 are disposed opposite to each other.

[0260] Figure 31 yes Figure 25 FIG. 1 is a schematic diagram of an assembly of a bone sensor 50 and a harness support 80 according to an embodiment of the present invention. Figure 32 yes Figure 24 FIG. 1 is a partial cross-sectional view of an embodiment of the first earphone body 100 at section line II.

[0261] like Figure 31 and Figure 32 As shown, the bone sensor 50 can be fixedly connected to the receiving groove 86 of the harness bracket 80. For example, the receiving groove 86 can be formed as an opening on the bottom surface 812 and the peripheral side surface 813 of the bracket body 81. The bone sensor 50 can be fixedly connected to the receiving groove 86 of the harness bracket 80 and the space enclosed by the second housing 20.

[0262] The second earphone body 200 may also include a buffer 99. The buffer 99 can fill the gap between the second housing 20, the bone sensor 50, and the wiring harness support 80. This helps secure the bone sensor 50 in place and cushions impacts. For example, the buffer 99 can be glue. This not only provides a buffering effect but also strengthens the connection between the wiring harness support 80 and the second housing 20, improving reliability.

[0263] The first capacitive sensor 60 is disposed within the first space 101. For example, the first capacitive sensor 60 can be connected to the inner surface 22 of the second housing 20. It will be appreciated that, in some embodiments, the first capacitive sensor 60 can also be referred to as a proximity sensor, and can be used to detect whether the user is wearing the headset 1000. When the first capacitive sensor 60 is close to the user's skin, the capacitance of the first capacitive sensor 60 changes, generating an electrical signal. The change in the electrical signal can be used to determine the distance between the first capacitive sensor 60 and the user.

[0264] Figure 33 yes Figure 25 A structural schematic diagram of an embodiment of a first circuit board 70 is shown in FIG.

[0265] like Figure 33 As shown, the first circuit board 70 may include a first portion 71, a second portion 72, a third portion 73, a fourth portion 74, a fifth portion 75, and a sixth portion 76. The second portion 72 is connected between the first portion 71 and the third portion 73. The third portion 73 is connected between the second portion 72 and the fourth portion 74. The fourth portion 74 is connected between the third portion 73 and the fifth portion 75. The sixth portion 76 is connected to the fourth portion 74.

[0266] In some embodiments, the first portion 71, the second portion 72, the third portion 73, the fourth portion 74, the fifth portion 75, and the sixth portion 76 can be an integral structural member. For example, the first circuit board 70 can be a flexible circuit board. In this way, the first circuit board 70 can be cut into any shape according to the components and positions to be connected, and then, after the corresponding parts and corresponding components are connected, it can be bent into a preset shape. Compared to solutions that achieve electrical connection through structures such as cables, flexible circuit boards are less difficult to assemble and have better electrical connection reliability. In other embodiments, the first portion 71, the second portion 72, the third portion 73, the fourth portion 74, the fifth portion 75, and the sixth portion 76 can also be connected by wires.

[0267] Figure 34 yes Figure 24 A partial structural diagram of an embodiment of the first earphone body 100 is shown in FIG. Figure 35 yes Figure 34 A schematic diagram of the structure shown in FIG. 1 at another angle.

[0268] like Figure 34 and Figure 35As shown, the feedback microphone 40 is connected to the first portion 71 of the first circuit board 70 and is electrically connected to the first portion 71. The speaker 30 is connected to the third portion 73 of the first circuit board 70 and is electrically connected to the third portion 73. The fourth portion 74 can be fixed to the bottom surface of the harness bracket 80. The first capacitive sensor 60 is connected to the fifth portion 75 of the first circuit board 70 and is electrically connected to the fifth portion 75. The bone sensor 50 is connected to the sixth portion 76 of the first circuit board 70 and is electrically connected to the sixth portion 76.

[0269] The fourth portion 74 can be used to connect signal lines to transmit signals from the speaker 30 , the harness bracket 80 , the bone sensor 50 , the first capacitive sensor 60 , and the feedback microphone 40 to the second earphone body 200 .

[0270] Figure 36 yes Figure 27 An enlarged schematic diagram of an embodiment of the structure shown in FIG. 1 at position J.

[0271] like Figure 36 As shown, the first housing 10 of the first circuit board 70 can be connected to the inner surface 12 of the first housing 10. The feedback microphone 40 is connected to a side surface of the first portion 71 away from the first housing 10. Along the X-axis, the first portion 71 can be arranged opposite the first through-hole 14. For example, the first portion 71 can be provided with a through-hole 711. Along the X-axis, the through-hole 711 can be arranged opposite and connected to the first through-hole 14.

[0272] In some embodiments, the first housing 10 may be provided with positioning posts 19. Positioning posts 19 may be disposed within the first subcavity 102. Positioning posts 19 can assist in quickly positioning the first portion 71 during installation within the first housing 10. The first portion 71 may be provided with corresponding positioning holes 712, with the positioning posts 19 at least partially located within the positioning holes 712. The positioning holes 712 and the through-hole 711 may be connected or spaced apart.

[0273] In some embodiments, the first circuit board 70 may further include a first reinforcement plate 77, which is connected to a side surface of the first portion 71 away from the feedback microphone 40. For example, the feedback microphone 40 is connected to a side surface of the first portion 71 away from the first housing 10. The first reinforcement plate 77 is connected between the first portion 71 and the first housing 10. The first reinforcement plate 77 is used to reinforce the first portion 71. In other embodiments, reinforcement plates (not shown) may also be provided at other locations on the first circuit board 70 to increase the local strength of the first circuit board 70.

[0274] Figure 37 yes Figure 1 FIG. 1 is a cross-sectional view of an embodiment of the earphone 1000 at the OO plane.

[0275] like Figure 37 As shown, the bone sensor 50 of the first earphone body 100 is connected to the side of the wiring harness support 80 near the second earphone body 200. When the user wears the earphones 1000, the first earphone body 100 is retained in the user's cavum concha, while the second earphone body 200 is located outside the user's ear, facing away from the first earphone body 100. In other words, the user's ear is located between the first and second earphone bodies 100, 200. The bone sensor 50 of the first earphone body 100 is connected to the side of the wiring harness support 80 near the second earphone body 200, placing it closer to the user's ear and better picking up the vibrations of the user's speech, thereby facilitating call noise reduction.

[0276] The third housing 210 of the second earphone body 200 is connected to the side of the fourth housing 220 away from the first earphone body 100. The antenna module 230 is fixedly connected to the third housing 210. The antenna module 230 can be located on the side of the second earphone body 200 away from the ear tissue. This minimizes interference when transmitting and receiving signals.

[0277] The first capacitive sensor 60 may be located inside the housing 109 of the first earphone body 100. The second capacitive sensor 290 may be located inside the housing 209 of the second earphone body 200. The second earphone body 200 may further include a controller, which may be electrically connected to the first capacitive sensor 60 and the second capacitive sensor 290. For example, the controller may be located in the main chip 2623 ( Figure 16 (Indicated in the middle)

[0278] Illustratively, the first capacitive sensor 60 is connected to the inner surface 22 of the second housing 20 and is located on a side of the inner surface 22 that is closer to the second earphone body 200. The second capacitive sensor 290 is connected to the inner surface 222 of the fourth housing 220. In other words, the second capacitive sensor 290 is located on a side of the second earphone body 200 that is closer to the first earphone body 100. This allows the first and second capacitive sensors 60 and 290 to be closer to the user's ears when the user wears the earphones 1000, resulting in more accurate detection results.

[0279] The headset 1000 is provided with a first capacitance sensor 60 on the first earphone body 100 and a second capacitance sensor 290 on the second earphone body 200. The first capacitance sensor 60 is used to obtain a first capacitance value in a first environment, and the second capacitance sensor 290 is used to obtain a second capacitance value in a second environment. The controller is used to determine whether the user is wearing the headset 1000 based on the first capacitance value and the second capacitance value, that is, to perform wear detection of the headset 1000. Exemplarily, wear detection may include the following three scenarios:

[0280] (1) When the user wears the earphone 1000 correctly, the first capacitance sensor 60 and the second capacitance sensor 290 can be in close contact with the user's auricle and form a specific capacitance value according to the pressure applied thereto. At the same time, the first capacitance sensor 60 and the second capacitance sensor 290 are both close to the user's ear, and the difference between the first capacitance value generated by the first capacitance sensor 60 and the second capacitance value generated by the second capacitance sensor 290 is small.

[0281] For example, when a user wears the earphones 1000 correctly, the first earphone body 100 can be retained within the user's cavum concha. The first environment is the user's cavum concha. The second earphone body 200 is located outside the user's ear, facing away from the first earphone body 100. The second environment is outside the user's ear, facing away from the first earphone body 100.

[0282] (2) When the user is not wearing the headset 1000 and there is no obstruction between the first capacitance sensor 60 and the second capacitance sensor 290, the pressure applied to the first capacitance sensor 60 and the second capacitance sensor 290 is relatively small, and the first capacitance sensor 60 generates a specific first capacitance value. The second capacitance sensor 290 generates a specific second capacitance value. The difference between the first capacitance value generated by the first capacitance sensor 60 and the second capacitance value generated by the second capacitance sensor 290 is relatively small.

[0283] (3) When the user picks up the headset 1000 or other obstacles cover either the first capacitance sensor 60 or the second capacitance sensor 290, one of the first capacitance sensor 60 and the second capacitance sensor 290 is closer to the obstacle and the other is farther away. At this time, the difference between the capacitance value generated by the first capacitance sensor 60 and the capacitance value generated by the second capacitance sensor 290 is large.

[0284] It can be understood that the controller can determine whether the earphone 1000 is in scene (1) or scene (2) based on the absolute value of the capacitance generated by the first capacitance sensor 60 and the second capacitance sensor 290, and determine whether the earphone 1000 is in scene (3) based on the difference in capacitance generated by the first capacitance sensor 60 and the second capacitance sensor 290 (that is, the relative value of capacitance).

[0285] It can be understood that compared with the solution of only setting the first capacitance sensor 60 or the second capacitance sensor 290, the present application sets the first capacitance sensor 60 on the first earphone body 100 and the second capacitance sensor 290 on the second earphone body 200, which can reduce the risk of accidental touch and improve the wearing detection accuracy of the earphone 1000.

[0286] like Figure 37As shown, along the length of the connecting arm 300, the connecting arm 300 has a first end and a second end spaced apart. The first end is connected to the first earphone body 100, and the second end is connected to the second earphone body 200. In some embodiments, the central axis of the first end and the central axis of the second end are arranged at an angle ranging from 11.4° to 26°. For example, the angle can be 11.4°, 15°, 20°, or 26°. It will be appreciated that, compared to a solution in which the central axis of the first end of the connecting arm 300 and the central axis of the second end of the connecting arm 300 are arranged parallel, arranging the first and second ends of the connecting arm 300 at a certain angle allows the relative position of the first and second earphone bodies 100 and 200 to better align with the inclination and contour of the user's ears when wearing the earphones 1000, effectively reducing the sense of pressure from the first and second earphone bodies 1000, and providing a better user experience.

[0287] Several implementations of the connecting arm 300 will be described in detail below with reference to the accompanying drawings. Figure 38 yes Figure 1 FIG. 3 is a cross-sectional view of an embodiment of a connecting arm 300 at section line KK. Figure 39 yes Figure 38 FIG. 3 is a cross-sectional view of one embodiment of the connecting arm 300 at the section line LL. Figure 40 yes Figure 38 FIG. 3 is a cross-sectional view of an embodiment of the connecting arm 300 at the section line MM.

[0288] like Figure 38 、 Figure 39 and Figure 40 As shown, the connecting arm 300 may include a first connector 310, a second connector 320, a support member 330, a wiring harness 340, and a tubular body 350. The tubular body 350 is sleeved over the support member 330 and the wiring harness 340 to protect them and to insulate the wiring harness 340. The support member 330 is used to shape the connecting arm 300. The wiring harness 340 is used to transmit electrical signals.

[0289] Exemplarily, the tube body 350 is provided with a first channel 351 and a second channel 352 spaced apart from each other. The first channel 351 and the second channel 352 are both arranged along the length of the tube body 350. The tube body 350 has a first end and a second end oppositely disposed. The first connector 310 is connected to the first end, and the second connector 320 is connected to the second end. The end surface of the first end of the tube body 350 is a first end surface 353. The end surface of the second end of the tube body 350 is a second end surface 354.

[0290] In some embodiments, the tube 350 may be made of insulating material, such as thermoplastic polyurethane (TPU).

[0291] like Figure 39 As shown, the wiring harness 340 may be centrally located within the first channel 351, with its ends exposed at the first end surface 353 and the second end surface 354, respectively. In some embodiments, the first connector 310 may be provided with a first through-hole 314. The first through-hole 314 extends through the first connector 310 along its length. The second connector 320 may be provided with a second through-hole 321. The second through-hole 321 extends through the second connector 320 along its length. One end of the support member 330 may be exposed through the first through-hole 314, and the other end may be exposed through the second through-hole 321.

[0292] like Figure 40 As shown, the first connector 310 may have a first cavity 315. The first cavity 315 and the first through-hole 314 may be spaced apart. The second connector 320 may have a second cavity 322. The second cavity 322 and the second through-hole 321 may be spaced apart. The support member 330 may be centrally located within the second channel 352. One end of the support member 330 may be located within the first cavity 315, and the other end may be located within the second cavity 322.

[0293] In some embodiments, the support member 330 can be a deformable metal material, specifically a metal strip. It can also be a metal or other material with elasticity. Exemplarily, the support member 330 can be a metal wire made of a memory alloy. It is understood that, compared to solutions using ordinary metal materials to make the support member 330, using a memory alloy to make the support member 330 can keep the first end and the second end of the connecting arm 300 within a certain distance range, preventing the support member 330 from losing its original shape after being stretched repeatedly.

[0294] In some embodiments, the central axis of the first connector 310 is substantially the same as the central axis of the first end of the connecting arm 300, and the central axis of the second connector 320 is substantially the same as the central axis of the second end of the connecting arm 300. The central axis of the first connector 310 and the central axis of the second connector 320 may also be arranged at an angle. The angle ranges from 11.4° to 26°, for example, 11.4°, 15°, 20°, or 26°.

[0295] It is understood that the central axis directions of the first connector 310 and the second connector 320 can be achieved by the shape of the support member 330 made of a memory alloy. The support member 330, made of a memory alloy, is first configured into a preset shape. The support member 330 is then passed through the first passage 351 of the tube 350, with one end fixedly connected to the first connector 310 and the other end fixedly connected to the second connector 320. Under specific conditions, the support member 330 is then restored to its preset shape. At this point, the shape of the tube 350 can change with the change in the shape of the support member 330, ultimately allowing the central axis directions of the first connector 310 and the second connector 320 to be arranged at a preset angle.

[0296] In some embodiments, the central axis direction of the first end of the tube body 350 and the central axis direction of the second end of the tube body 350 may also be arranged at an angle.

[0297] like Figure 38 As shown, a gap exists between the wiring harness 340 and the wall of the first channel 351. It will be appreciated that by providing a gap between the first channel 351 and the wiring harness 340, when the connecting arm 300 bends, the deformation of the wiring harness 340 can be less than that of the tube 350. In other words, when the connecting arm 300 bends, the amount of stretching of the wiring harness 340 is less than that of the tube 350. This makes the wiring harness 340 less likely to break and prolongs its life.

[0298] It can be understood that the connecting arm 300 can be used to connect the first earphone body 100 and the second earphone body 200, and realize signal transmission between the first earphone body 100 and the second earphone body 200. The following will specifically introduce an implementation method of the connecting arm 300 connecting the first earphone body 100 and the second earphone body 200 through the accompanying drawings, as well as a specific implementation method of the connecting arm 300 for realizing signal transmission between the first earphone body 100 and the second earphone body 200.

[0299] like Figure 37 As shown, when the connecting arm 300 is connected between the first earphone body 100 and the second earphone body 200 , the first connecting member 310 is connected to the first earphone body 100 and the second connecting member 320 is connected to the second earphone body 200 .

[0300] Figure 41 yes Figure 37 An enlarged view of an embodiment of the structure shown in FIG.

[0301] like Figure 37 and Figure 41 As shown, the first connecting member 310 may include a body portion 311, a first protrusion 312 and a second protrusion 313 ( Figure 41The main body 311, first protrusion 312, and second protrusion 313 are schematically distinguished by dotted lines. The first protrusion 312 and second protrusion 313 are fixedly connected to the side surface 3111 of the main body 311. The first protrusion 312 and second protrusion 313 are spaced apart along the length of the first connector 310. One end of the first connector 310 is connected to the tube 350, and the other end is connected to the first earphone body 100.

[0302] For example, the wall surface 3511 of the first channel 351 can be recessed to form a first groove 355. The first groove 355 is spaced apart from the first end surface 353. The first protrusion 312 and a portion of the body 311 of the first connector 310 can be located within the first groove 355. Simultaneously, along the length of the first connector 310, the first end surface 353 is partially located between the first protrusion 312 and the second protrusion 313. It is understood that the first protrusion 312 can serve as a retaining structure to prevent the tube body 350 from falling off the first connector 310.

[0303] The first groove 355 can be connected to the first channel 351. When the first connector 310 is fixedly connected to the tube 350, the first through hole 314 is connected to the first channel 351. In this way, one end of the wire harness 340 can pass through the first through hole 314 and enter the second sub-cavity 103 of the first earphone body 100.

[0304] In some embodiments, the first protrusion 312 may be annular and sleeved onto the side surface 3111 of the main body 311. In other embodiments, the first protrusion 312 may include a plurality of sub-protrusions that are spaced and connected to the side surface 3111 of the main body 311.

[0305] In some embodiments, when the tube body 350 is made of TPU, the TPU material is elastic, and the size of the first groove 355 can be designed to be slightly smaller than the first protrusion 312 of the first connecting member 310, so that the wall of the first groove 355 can support the first protrusion 312 and the main body 311, and the connection strength between the tube body 350 and the first connecting member 310 is better.

[0306] In some embodiments, when the first connector 310 is connected to the first earphone body 100, the first connector 310 is connected to the second shell 20. Exemplarily, the first connector 310 is partially located in the threading channel 83 of the harness bracket 80 and the second connection hole 26 of the second shell 20. The inner wall surface of the threading channel 83 of the harness bracket 80 can be raised to form a protrusion 831. Along the length direction of the first connector 310. The protrusion 831 is located between the first protrusion 312 and the second protrusion 313 of the first connector 310 and is adjacent to the first end face 353 of the tube body 350. It can be understood that the protrusion 831 of the harness bracket 80 can serve as a limiting structure to prevent the first connector 310 from falling off from the first earphone body 100 along the X-axis direction.

[0307] It is understood that the manner in which the second connector 320 connects the tube body 350 and the second earphone body 200 can be similar to the manner in which the first connector 310 connects the tube body 350 and the first earphone body 100, and will not be further described here. When the second connector 320 is connected to the second earphone body 200, the second connector 320 can be fixedly connected to the third housing 210 of the second earphone body 200.

[0308] In some embodiments, the first end of the tube body 350 may also be partially located in the third through hole 17 . In this case, the tube body 350 is located between the second housing 20 and the first connector 310 .

[0309] In some embodiments, a third gap S1 may be provided between the connecting arm 300 and the first earphone body 100. For example, the third gap S1 may be enclosed by the first connector 310, the first end face 353 of the tube body 350, and the inner wall surface of the threading channel 83 of the wiring harness bracket 80. When the first connector 310 is fixedly connected to the first earphone body 100 by gluing, glue may be injected into the third gap S1 to achieve a fixed connection between the first connector 310 and the first earphone body 100. Similarly, a fourth gap S2 (not shown) may also be provided between the second connector 320 and the second earphone body 200. When the second connector 320 is also fixedly connected to the second earphone body 200 by gluing, glue may be injected into the fourth gap S2 to achieve a fixed connection between the second connector 320 and the second earphone body 200.

[0310] In some embodiments, the third gap S1 can be larger than the fourth gap S2. It is understood that during the assembly process of the connecting arm 300, the first earphone body 100, and the second earphone body 200, due to assembly tolerances, when the angle between the central axis of the first end of the tube 350 and the central axis of the second end of the tube 350 does not reach the preset ideal angle, fine-tuning can be performed using the third gap S1 between the first connecting member 310 and the first earphone body 100. It should be noted that when the first connecting member 310 and the first earphone body 100 are fixedly connected using glue, the fine-tuning process must be completed before the glue solidifies.

[0311] In other embodiments, the third gap S1 may be smaller than the fourth gap S2. In this case, fine adjustment can be performed through the fourth gap S2 between the second connector 320 and the second earphone body 200.

[0312] Figure 42 yes Figure 38 FIG. 3 is a cross-sectional view of one embodiment of the wiring harness 340 at section line PP.

[0313] like Figure 42 As shown, the wiring harness 340 may be a collection of multiple signal wires 341. For example, the wiring harness 340 may include multiple signal wires 341 and a first enclosure 342. The first enclosure 342 has a first mounting channel 4321 defined along its length. The middle portion of the signal wires 341 may be located within the first mounting channel 4321, with both ends exposed. The first enclosure 342 allows the nine signal wires 341 to be integrated into a single unit, facilitating installation.

[0314] In some embodiments, the wiring harness 340 may include nine signal lines. The nine signal lines 341 are respectively one signal line 341 for transmitting power, one signal line 341 for grounding, two signal lines 341 for connecting to the capacitive sensor, two signal lines 341 for connecting to the feedback microphone, two signal lines 341 for connecting to the bone sensor, and two signal lines 341 for connecting to the speaker. It is understood that the number and type of signal lines 341 included in the wiring harness 340 can be adjusted based on the components installed in the first earphone body 100, and this application does not impose any restrictions.

[0315] In some embodiments, the signal line 341 for transmitting power is a first signal line, and the signal line 341 for connecting to the speaker is a second signal line. The wiring harness 340 may further include a second encapsulation member 343. The second encapsulation member 343 may be used to separately encapsulate the two signal lines 341 for connecting to the speaker 30 so as to form a whole. The second encapsulation member 343 is provided with a second mounting channel 3431 along its length. The two first signal lines are assembled in the second mounting channel 3431, with both ends exposed in the second mounting channel 3431. At this point, the two first signal lines and the second encapsulation member 343 constitute a sub-wiring harness. The sub-wiring harness and the first signal lines are assembled together in the first mounting channel 4321.

[0316] It is understandable that the signal of the speaker 30 is easily affected by other signals and has high requirements for crosstalk. The signal line 341 of the speaker 30 is wrapped separately by the second package 343, that is, the two signal lines 341 for connecting the speaker 30 are independently set. Then it is wrapped by the first package 342 together with other signal lines 341. The signal of the speaker 30 is not easily interfered with by the lines of other signals, and the sound effect of the headset 1000 is better. In other embodiments, the signal line of the bone sensor also has high requirements for crosstalk, so the two signal lines 341 for connecting the bone sensor can also be set independently. At this time, the wiring harness 340 can also include a third package (not shown), and the third package can be used to wrap the two signal lines 341 for connecting the bone sensor.

[0317] In some embodiments, signal lines 341 with lower crosstalk requirements can be twisted pairs. For example, two signal lines 341 used to connect to capacitive sensors can be twisted pairs. It is understood that, compared to a solution where two signal lines 341 are provided separately for connecting to capacitive sensors, using twisted pairs can significantly reduce the gap between the two signal lines 341, thereby reducing the cross-sectional area of ​​the wiring harness 340 and allowing the connecting arm 300 to be thinner.

[0318] In some implementations, the two signal lines 341 for connecting the feedback microphone 40 may also be in the form of twisted pairs.

[0319] Figure 43 It is a schematic diagram of an assembly of a wiring harness 340 , a first circuit board 70 , and a second circuit board 280 in one embodiment.

[0320] like Figure 43 As shown, one end of the harness 340 is connected to the first circuit board 70 and is electrically connected to the first circuit board 70. The other end of the harness 340 is connected to the second circuit board 280 and is electrically connected to the second circuit board 280. Figure 13 and Figure 14 It can be seen that the feedback microphone 40, the speaker 30, the first capacitance sensor 60 and the bone sensor 50 in the first earphone body 100 are all electrically connected to the first circuit board 70. Figure 30 and Figure 31 As can be seen, the second circuit board 280 is electrically connected to the main board 260. Thus, signals from the feedback microphone 40, speaker 30, first capacitive sensor 60, and bone sensor 50 in the first earphone body 100 can be transmitted to the main board 260 of the second earphone body 200 via the wiring harness 340. The wiring harness 340 can be used to transmit electrical signals between the first earphone body 100 and the second earphone body 200.

[0321] Figure 44 It is a schematic diagram of the assembly of the wiring harness 340, the first circuit board 70, and the wiring harness bracket 80 in one embodiment.

[0322] like Figure 44 As shown, the wiring harness bracket 80 may include a bracket body 81 and a plurality of baffles 82. The fourth portion 74 of the first circuit board 70 is fixed to the bottom surface 812 of the bracket body 81. When the wiring harness 340 includes multiple signal lines 341, the multiple signal lines 341 can pass through the threading channel 83 of the wiring harness bracket 80, enter the side of the bottom surface 812 of the bracket body 81, and then be electrically connected to the fourth portion 74 of the first circuit board 70. The multiple signal lines 341 and the multiple baffles 82 are arranged alternately in sequence, that is, a baffle 82 is provided between two adjacent signal lines 341. The baffle 82 can be used to sort out the multiple signal lines 341, separate the multiple signal lines 341 from each other, and reduce interference between the signal lines 341.

[0323] Figure 45 3 is a schematic structural diagram of an embodiment of the audio device 3000 provided in this application.

[0324] like Figure 45 As shown, the present application also provides an audio device 3000, which includes earphones 1000 and an earphone box 2000. The earphones are placed in the earphone box 2000. The earphone box 2000 can be used to store the earphones 1000. In some embodiments, the earphone box 2000 can also be used to charge the earphones 1000.

[0325] In some implementations, the audio device 3000 may include two headphones 1000 .

[0326] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the scope of protection of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0327] It should be noted that all the above drawings are for illustrative purposes only and do not represent the actual size of the product. Furthermore, the dimensional ratios between the components in the drawings are not intended to limit the actual product of the present application.

[0328] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A headset, characterized in that: The headset comprises a first earphone body, a connecting arm and a second earphone body, wherein the connecting arm connects the first earphone body and the second earphone body; When a user wears the earphone, the first earphone body is held in the user's concha cavity, and the second earphone body is located outside the user's ear and away from the side of the first earphone body; The first earphone body includes a housing and a speaker; The housing is provided with a second connecting hole, and the connecting arm is connected to the first earphone body through the second connecting hole; The housing encloses a first space, the speaker is fixedly connected to the inner surface of the housing of the first earphone body, and the speaker divides the first space into a first sub-cavity and a second sub-cavity; The sound output surface of the speaker faces the first sub-cavity, and the housing is provided with a first through hole, the first through hole connecting the external space of the first earphone body and the first sub-cavity, and the first through hole transmits the sound generated by the speaker out of the first earphone body; The housing is provided with two pressure relief holes, the two pressure relief holes being connected to the second sub-cavity and the external space of the first earphone body respectively; The two pressure relief holes are located on both sides of the second connecting hole.

2. The earphone according to claim 1, wherein The centers of the outer surface of the first earphone body, the outer surface of the second earphone body and the outer surface of the connecting arm are connected to form a symmetrical plane, and the two pressure relief holes are located on both sides of the symmetrical plane.

3. The earphone according to claim 2, wherein The two pressure relief holes are symmetrically arranged on both sides of the symmetry plane.

4. The earphone according to claim 1, wherein A line connecting the first through hole and one of the two pressure relief holes is a first line, a line connecting the first through hole and the second connection hole is a second line, and the first line and the second line form an angle.

5. The earphone according to any one of claims 1 to 4, characterized in that , the sum of the areas of the two pressure relief holes is smaller than the area of ​​the first through hole.

6. The earphone according to any one of claims 1 to 4, characterized in that The sum of the areas of the two pressure relief holes is 1mm 2 Up to 3mm 2 within the range.

7. The earphone according to any one of claims 1 to 4, characterized in that , the area of ​​the first through hole is 5mm 2 Up to 8mm 2 within the range.

8. The earphone according to claim 4, characterized in that The magnet of the speaker is provided with a hole, one side of the hole faces the sound-emitting surface of the speaker, and the other side of the hole is arranged opposite to the second connecting hole.

9. The earphone according to claim 8, characterized in that , the second connecting line passes through the hole opened by the magnet.

10. The earphone according to any one of claims 1 to 4, characterized in that The housing includes a first housing and a second housing. The first housing and the second housing enclose the first space. The first housing is provided with the first through hole. The second housing is provided with the two pressure relief holes. The speaker is arranged on the inner surface of the first housing.

11. An audio device, characterized in that The invention comprises an earphone box and the earphone according to any one of claims 1 to 10, wherein the earphone is arranged in the earphone box.

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