Electronic device

Abstract

An electronic device comprises a housing assembly (10) and a microphone assembly (13), the housing assembly (10) is provided with an accommodating cavity (1001), and the housing assembly (10) is provided with two sound inlet holes (1082); the microphone assembly (13) is arranged in the accommodating cavity (1001), and the microphone assembly (13) is used for collecting external sound input through the sound inlet hole (1082); the sound inlet ends of the two sound inlet holes (1082) are spaced from each other, the sound outlet ends of the two sound inlet holes (1082) are communicated with each other, the microphone assembly (13) comprises a supporting seat (131) and a microphone (132), the supporting seat (131) is provided with a sound guide channel (1311), the sound inlet end of the sound guide channel (1311) is communicated with the sound outlet ends of the two sound inlet holes (1082), and the microphone (132) is arranged at the sound outlet end of the sound guide channel (1311). Through the mode, the pickup effect of the electronic equipment can be improved.

Description

electronic devices

[0001] This application claims priority to the Chinese patent application with application number 202310541798.X filed on May 12, 2023 and entitled “Headphones.”

Technical field

[0002] The present application relates to the technical field of electronic devices, and in particular to electronic devices. [Background Technology]

[0003] With the increasing popularity of electronic devices, they have become indispensable social and entertainment tools in people's daily lives, and people's expectations of electronic devices are becoming increasingly higher. For example, mobile phones, computers, tablets, headphones, etc. are indispensable devices in people's lives, greatly enriching people's lives and making life more convenient.

[0004] Currently, most electronic devices have communication functions or sound collection functions. However, when electronic devices collect sound, they are prone to generate wind noise, which in turn reduces the sound pickup effect.

[0005] [Summary of the invention]

[0006] This application mainly provides an electronic device to improve the sound pickup effect of the electronic device.

[0007] To solve the above problems, the present application provides an electronic device, which includes a shell assembly and a microphone assembly. The shell assembly is provided with a accommodating cavity, and the shell assembly is provided with two sound input holes; the microphone assembly is arranged in the accommodating cavity, and the microphone assembly is used to collect external sounds input through the sound input holes; the sound input ends of the two sound input holes are spaced from each other, and the sound output ends of the two sound input holes are connected to each other, the microphone assembly includes a support base and a microphone, the support base is provided with a sound guiding channel, the sound input end of the sound guiding channel is connected with the sound output ends of the two sound input holes, and the microphone is arranged at the sound output end of the sound guiding channel.

[0008] In this manner, sound can enter the microphone assembly within the housing through both sound inlets, improving the microphone assembly's sound pickup performance. Furthermore, during sound pickup, a significant amount of airflow may enter the sound inlets. This airflow can enter the housing assembly through one of the sound inlets and exit through the other, slowing the airflow and reducing the probability of airflow impacting the microphone through the sound guide channel, thereby reducing wind noise during sound pickup.

[0009] In some embodiments, the sound guiding channel is arranged in a curved shape.

[0010] In some embodiments, the length of the sound guiding channel is set to be greater than or equal to 3 mm and less than or equal to 20 mm.

[0011] In some embodiments, the shell assembly is provided with a supporting surface and a rest surface, the sound outlet end of the sound inlet is located on the rest surface, the support seat is provided with a bottom surface and a top surface arranged back to back with each other and at least two side surfaces connected between the bottom surface and the top surface, the bottom surface of the support seat is supported on the supporting surface, a predetermined side surface of at least two side surfaces rests on the rest surface, the sound input end of the sound guiding channel is located on the predetermined side surface, the sound outlet end of the sound guiding channel is located on the top surface, and the sound guiding channel is configured to extend obliquely from the predetermined side surface to the bottom surface, and then further extend obliquely to the top surface.

[0012] In some embodiments, two first glue containing grooves spaced apart from each other are provided on the abutting surface and / or the predetermined side surface, the two first glue containing grooves connect the top surface and the bottom surface of the support seat, the sound output end of the sound input hole and the sound input end of the sound guiding channel are located between the two first glue containing grooves, and the electronic device further includes a first sealant, a second sealant and a third sealant, the first sealant seals the two first glue containing grooves, the second sealant seals at least the gap between the top surface between the two first glue containing grooves and the abutting surface, and the third sealant seals the gap between other side surfaces other than the predetermined side surfaces and the support surface.

[0013] In some embodiments, the connection between the predetermined side surface and the top surface is configured in a cut-angle shape, thereby cooperating with the abutting surface to form a second glue-containing groove, the second glue-containing groove connects the two first glue-containing grooves, and the second sealant seals the second glue-containing groove.

[0014] In some embodiments, the shell assembly further includes a convex rib arranged on the periphery of other side surfaces and protruding from the support surface, the convex rib cooperates with the other side surfaces to form a third glue-containing groove, and the third sealant seals the third glue-containing groove.

[0015] In some embodiments, the shell assembly includes a first shell and a second shell, the support surface and the abutment surface are located on the first shell, and a support flange is also provided on the first shell, the support flange is used to support the second shell, and a notch is provided on the support flange. On the side close to the abutment surface, part of the support seat is embedded in the notch and supports the second shell together with the support flange.

[0016] In some embodiments, the first shell is further provided with a first adhesive-supporting surface connected to the abutting surface, and the first adhesive-supporting surface is cross-arranged with the abutting surface. The support seat is further provided with a second adhesive-supporting surface connected to the predetermined side surface, and the second adhesive-supporting surface is cross-arranged with the predetermined side surface. The first adhesive-supporting surface and the second adhesive-supporting surface are at least partially overlapped. The electronic device further includes a fourth sealant, and the fourth sealant seals the gap between the first adhesive-supporting surface and the second adhesive-supporting surface.

[0017] In some embodiments, the supporting surface includes a third adhesive-supporting surface, the bottom surface includes a fourth adhesive-supporting surface, the third adhesive-supporting surface and the fourth adhesive-supporting surface are at least partially overlapped, and the electronic device further includes a fifth sealant, which seals the gap between the third adhesive-supporting surface and the fourth adhesive-supporting surface.

[0018] In some embodiments, the electronic device further includes a sealing ring, which is elastically clamped between the abutting surface and the predetermined side surface, and is arranged around the sound outlet end of the sound inlet hole and the periphery of the sound input end of the sound guide channel.

[0019] In some embodiments, the abutment surface is provided with a recessed area surrounding the sound output end of the sound input hole, and the sealing ring is provided in the recessed area; or the predetermined side surface is provided with a recessed area surrounding the sound input end of the sound guide channel, and the sealing ring is provided in the recessed area.

[0020] In some embodiments, a positioning groove is provided on the top surface, the sound outlet end of the sound guiding channel is located in the positioning groove, and the microphone is positioned in the positioning groove.

[0021] In some embodiments, the electronic device is an earphone and includes a wearing component, which is connected to a shell component. In the worn state, the wearing component is hung on the user's ear to position the shell component to contact the user's face. The sound input end of the sound input hole is located on the side of the shell component toward the top of the user's head along the vertical axis of the user, and is blocked by the shell component or the wearing component along the sagittal axis of the user.

[0022] In some embodiments, the shell assembly includes a first shell, the first shell is provided with a first matching part, the wearing assembly is provided with a second matching part, the first matching part is matched and connected with the second matching part, the sound input hole is provided on the first shell, the first matching part and / or the second matching part protrudes from the sound input end of the sound input hole along the vertical axis, and the sound input end of the sound input hole is located along the sagittal axis on the first matching part and / or the second matching part toward the back of the human brain.

[0023] In some embodiments, a spacing distance between the sound inlet end of the sound inlet hole and the first matching portion and / or the second matching portion along the sagittal axis is less than or equal to half of the maximum dimension of the first shell along the sagittal axis.

[0024] In some embodiments, the distance between the sound inlet end of the sound inlet and the first matching portion and / or the second matching portion along the sagittal axis is less than or equal to 5 mm.

[0025] In some embodiments, the sound inlet ends of the two sound inlet holes are spaced apart along the sagittal axis.

[0026] In some embodiments, a ratio of a distance between the sound inlet ends of the two sound inlet holes to the apertures of the two sound inlet holes is between 0.5 and 3.

[0027] In some embodiments, the sound guiding channel further has an extension component toward the front of the user in the sagittal axis.

[0028] The beneficial effects of this application are as follows: sound can enter the microphone assembly within the accommodating cavity through two sound inlet holes, which increases the sound pickup area and improves the sound pickup effect of the microphone assembly. In addition, during the sound pickup process, a large airflow may enter the sound inlet holes. The airflow can enter the housing assembly through one of the sound inlet holes and exit through the other sound inlet hole, which can slow down the airflow speed and reduce the probability of the airflow impacting the microphone through the sound guide channel, thereby reducing wind noise during sound pickup.

[0029] In some embodiments, the support base and the housing assembly are fixed by laser welding.

[0030] In some embodiments, the electronic device includes a tuning mesh assembly, which is located in front of the microphone on the sound pickup path from the sound inlet to the microphone; the tuning mesh assembly includes at least two tuning elements, each tuning element is arranged between the shell assembly and the support seat, or is arranged in front of the sound input end of the sound inlet, or is arranged between the support seat and the microphone, or is arranged in the sound guide channel, or is arranged in the sound inlet.

Brief Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] FIG1 is a schematic diagram of the assembled three-dimensional structure of an embodiment of the earphone of the present application;

[0033] FIG2 is a schematic diagram of a three-dimensional structure of a portion of the movement assembly and the wearing assembly shown in FIG1 ;

[0034] FIG3 is an exploded schematic diagram of the structure of the movement assembly shown in FIG2 ;

[0035] FIG4 is a schematic cross-sectional view of the movement assembly shown in FIG2 along the AA section line;

[0036] FIG5 is a schematic cross-sectional view of the movement assembly shown in FIG2 along the BB section line;

[0037] FIG6 is a schematic diagram of the three-dimensional structure of the bone conduction speaker shown in FIG3 ;

[0038] FIG7 is an exploded schematic diagram of the structure of the bone conduction speaker shown in FIG3 ;

[0039] FIG8 is a schematic cross-sectional view of the bone conduction speaker shown in FIG6 along the CC section line;

[0040] FIG9 a is a schematic diagram of sound signals of the earphone shown in FIG1 in a first frequency band and a second frequency band;

[0041] FIG9 b is a schematic diagram of the frequency of electrical signals input to the bone conduction speaker and the air conduction speaker of the earphone shown in FIG1 in the first working mode;

[0042] FIG10 a is a schematic structural diagram of a detachable bone conduction speaker and an air conduction speaker of the earphone shown in FIG1 ;

[0043] FIG10b is a schematic diagram of an exemplary structure of the bone conduction speaker and the air conduction speaker shown in FIG10a;

[0044] FIG11 is a schematic diagram of the three-dimensional structure of the air conduction speaker shown in FIG3 ;

[0045] FIG12 is an exploded schematic diagram of the structure of the air conduction speaker shown in FIG11;

[0046] FIG13 is a schematic diagram of the front view of the vibration transmission piece shown in FIG7;

[0047] FIG14 is a schematic diagram of a partial cross-sectional structure of the bone conduction speaker shown in FIG8;

[0048] FIG15 is a schematic structural diagram of the annular fixing portion of the vibration transmission plate shown in FIG13;

[0049] FIG16 is a schematic structural diagram of the connection between the connecting rod assembly and the central fixing portion of the vibration transmission plate shown in FIG13;

[0050] FIG17 is another exploded structural schematic diagram of the movement assembly shown in FIG2 ;

[0051] FIG18 is a schematic structural diagram of the bone conduction speaker shown in FIG17;

[0052] FIG19 is a schematic diagram of a partial exploded structure of the movement assembly shown in FIG17;

[0053] FIG20 is another cross-sectional structural diagram of the movement assembly shown in FIG2 along the BB section line;

[0054] FIG21 is an enlarged structural diagram of the F region shown in FIG20 ;

[0055] FIG22 is another partial exploded structural schematic diagram of the movement assembly shown in FIG18;

[0056] FIG23 is a schematic cross-sectional view of the structure of the movement assembly shown in FIG2 ;

[0057] FIG24 is a schematic diagram of a partial cross-sectional structure of the movement assembly shown in FIG23;

[0058] FIG25 is a schematic diagram of a partial structure of the movement assembly shown in FIG17;

[0059] FIG26 is a schematic cross-sectional view of the movement assembly shown in FIG25 along the M1-M2 section line;

[0060] FIG27 is a schematic cross-sectional view of the movement assembly shown in FIG26 along the M3-M4 section line;

[0061] FIG28 is a non-limiting partial exploded structural diagram of the movement assembly shown in FIG17;

[0062] FIG29 is a schematic structural diagram of the support seat shown in FIG28 assembled to the housing assembly and glued;

[0063] FIG30 is a top view of the structure shown in FIG28;

[0064] FIG31 is another non-limiting schematic diagram of a partial structure of the movement assembly shown in FIG17;

[0065] FIG32 is an enlarged structural diagram of the M5 region in FIG31 ;

[0066] FIG33 is a schematic structural diagram of a support base of the microphone assembly shown in FIG17 that matches the housing assembly in FIG31;

[0067] FIG34 is a schematic structural diagram of the support base shown in FIG33 from another perspective;

[0068] FIG35 is a top view of the support base shown in FIG33 assembled to the support base in FIG31;

[0069] FIG36 is a schematic diagram of a simplified structure in which the support base shown in FIG33 and the housing assembly shown in FIG32 are sealed by a fourth sealant;

[0070] FIG37 is a schematic diagram of a simplified structure in which the support base shown in FIG33 and the housing assembly shown in FIG32 are sealed by a fifth sealant;

[0071] FIG38 is another structural schematic diagram of the support base of the microphone assembly shown in FIG17;

[0072] FIG39 is a schematic structural diagram of the support base shown in FIG38 assembled to the housing assembly;

[0073] Figure 40 is a partial cross-sectional structural diagram of the movement assembly showing the tuning assembly and the support seat. [Specific implementation method]

[0074] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application and do not limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application and not all embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0075] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of this application. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0076] The following earphone embodiment of the present application describes an exemplary structure of the earphone 100.

[0077] As shown in Figure 1, the earphone 100 may include a core component 1, an ear hook component 2 and a back hook component 3. The number of core components 1 can be two. The two core components 1 are used to transmit vibration and / or sound to the left ear and right ear of the user respectively. The two core components 1 can be the same or different. For example, one core component 1 can be provided with a microphone, while the other core component 1 can not be provided with a microphone. For another example, one core component 1 can be provided with a button and a corresponding circuit board, while the other core component 1 can not be provided with the button and the corresponding circuit board. The two core components 1 can be the same in the core module (such as a speaker module). The core component 1 described later in this article can be considered to be described in detail by taking one of the two core components 1 as an example. The number of ear hook components 2 can be two, and the two ear hook components 2 can be hung on the left ear and right ear of the user respectively, so that the core component 1 can fit the user's face. For example, one ear hook component 2 can be provided with a battery, and the other ear hook component 2 can be provided with a control circuit, etc. One end of the earhook assembly 2 is connected to the core assembly 1, and the other end of the earhook assembly 2 is connected to the back-hook assembly 3. The back-hook assembly 3 connects the two earhook assemblies 2. The back-hook assembly 3 is designed to wrap around the back of the user's neck or head and provide a clamping force, allowing the two core assemblies 1 to clamp to the sides of the user's face and the earhook assemblies 2 to be more securely attached to the user's ears. Of course, the earphones 100 can also include no back-hook assembly 3, and the core assembly 1 can be worn on the user's ears via the earhook assemblies 2.

[0078] The following content mainly describes the structure of the core component 1 and other parts of the earphone 100 by way of example.

[0079] As shown in FIG. 2 , FIG. 3 , FIG. 4 and FIG. 5 , the core assembly 1 may include a housing assembly 10 , a bone conduction speaker 11 and an air conduction speaker 12 .

[0080] Optionally, the housing assembly 10 may be provided with a mutually isolated accommodating chamber 1001 and an accommodating chamber 1002. The housing assembly 10 may also be referred to as the core housing assembly 10. The bone conduction speaker 11 is disposed within the accommodating chamber 1001, which may be referred to as the first accommodating chamber. The air conduction speaker 12 is disposed within the accommodating chamber 1002, which may be referred to as the second accommodating chamber.

[0081] The air conduction speaker 12 transmits sound to the user's ear canal through the principle of air vibration, while the bone conduction speaker 11 transmits sound to the user through bone conduction vibration. Optionally, the sealing performance of the accommodating chamber 1001 is greater than that of the accommodating chamber 1002. Sealing performance can be considered as airtightness. Optionally, the accommodating chamber 1001 can be set as a completely sealed accommodating chamber, while the accommodating chamber 1002 can be set as a accommodating chamber with a higher sealing performance while ensuring the sound production of the air conduction speaker 12. In the above manner, since the housing chamber 1002 in which the air conduction speaker 12 is placed needs to be connected to the outside world to facilitate airborne sound wave conduction, the bone conduction speaker 11 and the air conduction speaker 12 are separately provided. Instead of placing the bone conduction speaker 11 within the housing chamber 1002, the bone conduction speaker 11 is placed solely within the housing chamber 1001. Since the housing chambers 1001 are independent of each other, the sealing of the housing chamber 1001 can be enhanced, effectively improving the sealing effect of the bone conduction speaker 11, thereby preventing damage to the bone conduction speaker 11 from external environmental factors while maintaining the sound quality of the air conduction speaker 12. Furthermore, when the bone conduction speaker 11 and the air conduction speaker 12 are operating simultaneously in the earphone 100, the bone conduction speaker 11 and the air conduction speaker 12 are respectively placed within the housing chamber 1001 and the housing chamber 1002, effectively reducing mutual interference between the bone conduction speaker 11 and the air conduction speaker 12, thereby effectively improving the sound quality of the earphone 100.

[0082] 2 and 3 , the housing assembly 10 may include a housing 101, a housing 102, and a housing 103, wherein the housing 101 and the housing 102 cooperate with each other to form a receiving chamber 1001. The housing 101 and / or the housing 102 further form a portion of the receiving chamber 1002, and the housing 103 may form another portion of the receiving chamber 1002. Furthermore, the housing 103 cooperates with the housing 101 and / or the housing 102 to form the receiving chamber 1002.

[0083] The housing assembly 10 can be composed of a housing 101, a housing 102, and a housing 103 that cooperate with each other. The housing 101 and the housing 102 cooperate to form a receiving cavity 1001, and the housing 103 cooperates with the housing 101 to form a receiving cavity 1002. The housing assembly 10, composed of the housing 101, the housing 102, and the housing 103 of the above-described structure, can make the structure of the movement assembly 1 compact while also facilitating the assembly of the movement assembly 1, thereby improving the assembly efficiency of the movement assembly 1. In some embodiments, the housing 101 can be referred to as the first housing; the housing 102 can be referred to as the second housing; and the third housing 103 can be referred to as the third housing.

[0084] Of course, a part of the accommodating chamber 1002 can also be set in the shell 102, and the shell 103 and the shell 102 cooperate with each other to form the accommodating chamber 1002, or a part of the accommodating chamber 1002 can be formed by cooperating with the shell 101 and the shell 102, and the shell 103, the shell 101 and the shell 102 cooperate with each other to form the accommodating chamber 1002.

[0085] Through the above-mentioned structural setting, the bone conduction speaker 11 and the air conduction speaker 12 can be placed in the independent accommodating cavity 1001 and the accommodating cavity 1002 respectively, thereby reducing the mutual influence between the operations of the bone conduction speaker 11 and the air conduction speaker 12. While ensuring the acoustic output of the air conduction speaker 12 and the bone conduction speaker 11 as much as possible, the structure of the movement assembly 1 can be made compact, thereby miniaturizing the size of the movement assembly 1, and facilitating the assembly of the movement assembly 1, thereby improving the assembly efficiency of the movement assembly 1.

[0086] Optionally, the vibration direction of the bone conduction speaker 11 is arranged to intersect with the vibration direction of the air conduction speaker 12, and the housing 101 and the housing 102 cooperate with each other along the vibration direction of the bone conduction speaker 11. The housing 103 cooperates with the housing 101 and / or the housing 102 along the vibration direction of the air conduction speaker 12.

[0087] Specifically, the vibration direction of the bone conduction speaker 11 is arranged crosswise with the vibration direction of the air conduction speaker 12. The vibration direction of the bone conduction speaker 11 may also be referred to as the bone conduction vibration direction X1 in this article, and the vibration direction of the air conduction speaker 12 may also be referred to as the air conduction vibration direction X2 in this article, wherein the bone conduction vibration direction X1 and the air conduction vibration direction X2 are not parallel to each other but are arranged crosswise. For example, the bone conduction vibration direction X1 and the air conduction vibration direction X2 are arranged perpendicularly or approximately perpendicularly (for example, 90°±10°). When the bone conduction speaker 11 and the air conduction speaker 12 are working simultaneously, the bone conduction speaker 11 and the air conduction speaker 12 vibrate along the bone conduction vibration direction X1 and the air conduction vibration direction X2 respectively. Since the vibration directions of the two are arranged crosswise, the influence of the vibration of the bone conduction speaker 11 on the sound quality of the air conduction speaker 12 caused by the vibration of the two in the same direction can be effectively alleviated. Further, the housing 101 and the housing 102 can be assembled with each other along the bone conduction vibration direction X1, and the housing 103 and the housing 101 can be assembled with each other along the air conduction vibration direction X2. For example, the housing 101 and the housing 103 may cooperate to form the accommodating chamber 1002, and the housing 103 may only cooperate with the housing 101 along the air-conducted vibration direction X2. Of course, the housing 103 may not cooperate with the housing 101 to form the accommodating chamber 1002, but the housing 103 and other housings may cooperate to form the accommodating chamber 1002 along the air-conducted vibration direction X2, or the housing 1003 may cooperate with the housing 101 and other housings to form the accommodating chamber 1002. This method is beneficial to the assembly of the movement assembly 1, thereby improving the assembly efficiency of the movement assembly 1.

[0088] 6 and 7 , the bone conduction speaker 11 optionally includes a voice coil assembly 111 and a magnet assembly 112. The voice coil assembly 111 is disposed around the magnet assembly 112 and is fixedly connected to the housing 101 and / or the housing 102. The surface of the housing 101 and / or the housing 102, which is located opposite to the bone conduction speaker 11 along the vibration direction of the bone conduction speaker 11, is configured to contact the user's skin and transmit bone conduction vibrations.

[0089] Optionally, further referring to Figures 6, 7, and 8, the voice coil assembly 111 includes two voice coils 1110 spaced apart along the central axis Z of the bone conduction speaker 11, and a magnetic shield 1111 wound around the two voice coils 1110. The magnet assembly 112 includes a magnet 1121 and two magnetic conductive plates 1122. The two magnetic conductive plates 1122 are disposed on opposite end surfaces of the magnet 1121 along the central axis Z. The radial projections of the two magnetic conductive plates 1122 along the bone conduction speaker 11 overlap the two voice coils 1110, and the two voice coils 1110 are energized in opposite directions. The central axis Z of the bone conduction speaker 11 coincides with the vibration direction of the bone conduction speaker 11 (i.e., the bone conduction vibration direction X1), as described below.

[0090] Optionally, as shown in Figures 5, 7 and 8, the outer circumferential surface of the magnetic cover 1111 can be in contact with the shell assembly 10 and / or fixedly connected to the shell assembly 10 by adhesive, so that the bone conduction speaker 11 and the shell assembly 10 can achieve hard connection / hard contact, so that the bone conduction speaker 11 can be firmly accommodated in the accommodating cavity 1001. Furthermore, the outer circumferential surface of the magnetic cover 1111 can be in full contact with the shell assembly 10, or it can be in partial contact with the shell assembly 10. Further, the outer circumferential surface of the magnetic cover 1111 can be partially connected to the shell assembly 10, while another part can be fixedly connected to the shell assembly 10 by adhesive. As for partial contact with the shell assembly 10, the outer circumferential surface of the shell assembly 10 and / or the magnetic cover 1111 can be provided with supporting ribs, supporting protrusions and other structures to achieve partial contact between the two.

[0091] For example, the outer circumference of the magnetic shield 1111 contacts the housing assembly 10 and / or is fixedly connected to the housing assembly 10 by adhesive at least in two normal directions perpendicular to each other (normal directions of the outer circumference of the magnetic shield 111). Optionally, the outer circumference of the magnetic shield 1111 contacts the housing assembly 10 and / or is fixedly connected to the housing assembly 10 by adhesive in the first direction. The outer circumference of the magnetic shield 1111 contacts the housing assembly 10 and / or is fixedly connected to the housing assembly 10 by adhesive in the second direction. For example, the first direction includes a first positive direction and a first negative direction opposite to each other. For example, the outer circumference of the magnetic shield 1111 contacts the housing assembly 10 and / or is fixedly connected to the housing assembly 10 by adhesive in the first positive direction and / or the first negative direction. The second direction may include two second positive directions and a second negative direction opposite to each other. The outer circumference of the magnetic shield 1111 may contact the housing assembly 10 and / or be fixedly connected to the housing assembly 10 by adhesive in the second positive direction and / or the second negative direction. The first direction is perpendicular to the second direction. The verticality mentioned here allows a certain deviation, for example, 80° to 100° can be considered vertical.

[0092] As shown in Figure 7, the outer peripheral surface of the magnetic cover 1111 may include, for example, two first outer side surfaces arranged opposite to each other and two second outer side surfaces arranged opposite to each other. Each second outer side surface is located between the two first outer side surfaces, and the two second outer side surfaces and the two first outer side surfaces form an annular structure. For example, each first outer side surface may be in contact with the shell assembly 10 and / or fixedly connected to the shell assembly 10 by adhesive, and each second outer side surface may be in contact with the shell assembly 10 and / or fixedly connected to the shell assembly 10 by adhesive. For example, the two first outer side surfaces may be arranged opposite to each other in a first direction, and the two second outer side surfaces may be arranged opposite to each other in a second direction. The first direction may be, for example, the direction X2 shown in Figure 5, and the second direction may be the direction LD shown in Figure 5.

[0093] Optionally, each second outer side surface and the two first outer side surfaces can be directly connected at an angle (corner), for example, vertically. Each second outer side surface and the two first outer side surfaces can also be connected in an arcuate transition, for example, by an arcuate connecting surface, so that there is at least one arcuate connecting surface between the two second outer side surfaces and the two first outer side surfaces, for example, the number of arcuate connecting surfaces can be four. Furthermore, at least one arcuate connecting surface contacts the shell component 10 or is fixedly connected to the shell component 10 by adhesive, or four arcuate connecting surfaces contact the shell component 10 or are fixedly connected to the shell component 10 by adhesive.

[0094] With such an arrangement, hard contact / hard connection is achieved between the bone conduction speaker 11 and the shell assembly 10, which can effectively improve the overall strength of the shell assembly 10, make the vibration transmission efficiency between the two higher, and thus reduce noise and sound leakage.

[0095] Referring to FIG9a , the headset 100 is optionally provided with a first operating mode and a second operating mode. In the first operating mode, the bone conduction speaker 11 plays sound signals in the first frequency band P1, and the air conduction speaker 12 plays sound signals in the second frequency band P2. In the second operating mode, the bone conduction speaker 11 plays sound signals in the first frequency band P1 and the second frequency band P2, and the first frequency band P1 and the second frequency band P2 are at least partially offset in the frequency domain. For example, if the first frequency band P1 and the second frequency band P2 do not overlap in the frequency domain, the frequency range of the first frequency band P1 is higher than the frequency range of the second frequency band P2. For example, if the first frequency band P1 and the second frequency band P2 partially overlap in the frequency domain, the frequency range of the offset portion of the first frequency band P1 is higher than the frequency range of the offset portion of the second frequency band P2.

[0096] In some embodiments, the earphone 100 may include a crossover point n (as shown in FIG9a ), the first frequency band P1 may include a frequency band greater than the crossover point n, and the second frequency band P2 may include a frequency band less than the crossover point n. The crossover point n is located at the overlapping intersection of the first frequency band P1 and the second frequency band P2. When the earphone 100 is in the first working mode, the bone conduction speaker 11 and the air conduction speaker 12 work together, and the bone conduction speaker 11 mainly outputs the sound signal of the first frequency band P1, and the air conduction speaker 12 mainly outputs the sound signal of the second frequency band P2. That is, the operating frequency band of the bone conduction speaker 11 may include a frequency band greater than the crossover point n, and the operating frequency band of the air conduction speaker 12 may include a frequency band less than the crossover point n.

[0097] Referring to Figure 9b , Figure 9b illustrates the electrical signal frequency band P3 input to the bone conduction speaker 11 and the electrical signal frequency band P4 input to the air conduction speaker 12, respectively, when the earphone 100 is operating in the first operating mode. In some embodiments, the electrical signal frequency band P3 of the bone conduction speaker 11 and the electrical signal frequency band P2 of the air conduction speaker 12 have an overlapping intersection point m, and the crossover frequency point n is within a range of 0.5 to 3 octaves of the overlapping intersection point m. For example, if the overlapping intersection point m is 300 Hz, the crossover frequency point n can be within a range of 150 Hz to 900 Hz, such as 500 Hz.

[0098] In some embodiments, the first frequency band P1 may be a mid-high frequency or a high frequency, and the second frequency band P2 may include a mid-low frequency or a low frequency. For example, the low frequency range is 30-150 Hz, the mid-low frequency range is 150-500 Hz, and the mid-high frequency range is 500-5 kHz. The high frequency range is 5 kHz-16 kHz.

[0099] When the earphone 100 is in the first operating mode, the bone conduction speaker 11 and the air conduction speaker 12 work together, with the bone conduction speaker 11 primarily outputting sound signals in the first frequency band P1, while the air conduction speaker 12 primarily outputting sound signals in the second frequency band P2. The earphone 100 utilizes the bone conduction speaker 11 and the air conduction speaker 12 to work together, with the sound signals in the first frequency band P1 output by the bone conduction speaker 11 and the sound signals in the second frequency band P2 output by the air conduction speaker 12 fitting together to form a relatively complete sound signal that is transmitted to the user's ear. This approach effectively improves the mid- and low-frequency sound quality of the sound signal emitted by the earphone 100, thereby effectively improving the overall sound quality of the sound signal emitted by the earphone 100. Furthermore, the bone conduction speaker 11 can also work independently. That is, in the second operating mode, the air conduction speaker 12 is not operational, and the bone conduction speaker 11 can simultaneously output sound signals in the first frequency band P1 and the second frequency band P2. For example, when the earphone 100 is working when the user is exercising and sweating a lot or when the user is working in a humid and rainy environment, the earphone 100 actively cuts off the operation of the air conduction speaker 12 and can only use the bone conduction speaker 11 to produce sound. This ensures the overall sound quality of the sound signal emitted by the earphone 100 while preventing the air conduction speaker 12 from being eroded by adverse factors such as sweat or rain, thereby effectively improving the reliability and stability of the earphone 100.

[0100] Optionally, the headset 100 is further provided with a third operating mode. In the third operating mode, the air conduction speaker 12 plays sound signals in the first frequency band P1 and the second frequency band P2. Specifically, if the headset 100 detects that the bone conduction speaker 11 is damaged or the special environment in which the headset 100 is currently located is not conducive to the operation of the bone conduction speaker 11, the headset 100 switches to the third operating mode. In the third operating mode, the air conduction speaker 12 operates alone, simultaneously outputting sound signals in the first frequency band P1 and the second frequency band P2, to ensure that the headset 100 can still normally output high-quality sound signals in this operating mode.

[0101] The following describes another embodiment of the housing assembly 10 as shown in Figures 10a and 10b. Different from the above-mentioned embodiment of the housing assembly 10, the housing assembly 10 may include a first portion 1003 and a second portion 1004, wherein the first portion 1003 is connected to the wearable assembly 27 (as shown in Figures 1 and 2). The second portion 1004 is detachably connected to the first portion 1003 or the wearable assembly 27, the bone conduction speaker 11 is disposed on the first portion 1003, and the air conduction speaker 12 is disposed on the second portion 1004 and can be detachably removed from the wearable assembly 27 along with the second portion 1004. In other words, the housing assembly 10 includes a detachable first portion 1003 and a second portion 1004, wherein the bone conduction speaker 11 is disposed on the first portion 1003, the air conduction speaker 12 is disposed on the second portion 1004, and the second portion 1004 is detachably connected to the first portion 1003 or the wearable assembly 27. This arrangement allows the air conduction speaker 12 to be independently detached from the remaining components of the earphone 100. After the air conduction speaker 12 is detached, the bone conduction speaker 11 can continue to operate. This detachability effectively improves the environmental adaptability of the earphone 100. In extreme environments, such as when a user is sweating profusely during exercise or in a humid or rainy environment, the air conduction speaker 12 can be quickly removed from the earphone 100 to prevent damage. At the same time, the earphone 100 can continue to output high-quality audio signals thanks to the bone conduction speaker 11. When only the bone conduction speaker 11 is operating in the earphone 100, the earphone 100 can control the operation of the bone conduction speaker 11 using the second operating mode described above, ensuring the quality of the audio signals output by the earphone 100. Furthermore, the second portion 1004 is detachably connected to the first portion 1003 or the wearable assembly 27, making it easier to replace the second portion 1004. This allows for replacement of air conduction speakers 12 with different performance characteristics and facilitates maintenance.

[0102] As shown in FIG10b , the earphone 100 optionally includes a wire assembly for supplying power and / or audio signals to the bone conduction speaker 11 and the air conduction speaker 12 . The wire assembly can be connected to the first portion 1003 . The first portion 1003 can be provided with a first electrode portion 10031 , and the second portion 1004 can be provided with a second electrode portion 10041 . After the first portion 1003 and the second portion 1004 are detachably assembled, the first electrode portion 10031 and the second electrode portion 10041 are in contact and electrically connected. The first electrode portion 10031 and the second electrode portion 10041 can have various structural forms. For example, the first electrode portion 10031 can include at least two first electrode contacts. The second electrode portion 10041 can include at least two electrode contacts, and the at least two first electrode contacts and the at least two second electrode contacts can correspond one to one. For example, one of the first electrode portion 10031 and the second electrode portion 10041 may include a pogo pin, and the other may include a spring sheet or a contact, and the two are electrically connected through the contact between the spring pin and the spring sheet or the contact. For example, the first electrode portion 10031 and the second electrode portion 10041 each include a spring sheet, and the electrical connection is achieved through the elastic abutment of the spring sheets of the two. Of course, the first electrode portion 10031 and the second electrode portion 10041 can also have other forms. For example, the first electrode portion 10031 can include a plurality of ring electrodes nested in each other, and the second electrode portion 10041 can also include a plurality of ring electrodes nested in each other. The first electrode portion 10031 and the second electrode portion 10041 can be electrically connected through the one-to-one contact of the ring electrodes of the two. The first electrode portion 10031 and the second electrode portion 10041 are not limited to the examples listed above. The first electrode portion 10031 and the second electrode portion 10041 are configured to ensure that the first part 1003 and the second part 1004 are electrically connected during assembly and can be separated from each other after disassembly.

[0103] In some embodiments, the wire assembly can be coupled to the bone conduction speaker 11 and the first electrode portion 10031, and the second electrode portion 10041 can be coupled to the air conduction speaker 12. After the second portion 1004 and the first portion 1003 are assembled, the first electrode portion 10031 and the second electrode portion 10041 are in contact and electrically connected, so that the wire assembly can also provide power and / or audio signals to the air conduction speaker 12.

[0104] In other embodiments, the first electrode portion 10031 can be coupled to the bone conduction speaker 11, and the second electrode portion 10041 can be coupled to the air conduction speaker 12. A wire assembly is coupled to the at least two first electrode portions 10031. The wire assembly can supply power and / or provide audio signals to the bone conduction speaker 11 through the first electrode portion 10031, and can also supply power and / or provide audio signals to the air conduction speaker 12 through contact between the first electrode portion 10031 and the second electrode portion 10041.

[0105] Of course, the above-mentioned wire group can also be connected to the second part 1004, and the first part 1003 can be detachably connected to the second part 1004. The specific connection relationship can refer to the above description.

[0106] The first portion 1003 is provided with a first connecting portion 10032, and the second portion 1004 is provided with a second connecting portion 10042. The first connecting portion 10032 and the second connecting portion 10042 can be configured to be detachably connected by means of snap connection, bonding, magnetic attraction, threaded connection, etc. For example, the first connecting portion 10032 can be configured as one of a slot and a buckle, and the second connecting portion 10042 can be configured as the other of the slot and the buckle. The first portion 1003 and the second portion 1004 are detachably connected by the buckle snapping into the slot, thereby bringing the first electrode portion 10031 and the second electrode portion 10041 into contact with each other, achieving electrical connection.

[0107] 3 and 5 , optionally, the housing assembly 10 may further be provided with a pressure relief hole 1081 for connecting the accommodating chamber 1002 with the external environment. The pressure relief hole 1081 is configured to extend toward the side where the accommodating chamber 1001 is located. Specifically, the bone conduction speaker 11 and the air conduction speaker 12 may be respectively accommodated in the accommodating chamber 1001 and the accommodating chamber 1002. The housing assembly 10 is provided with a pressure relief hole 1081 for relieving pressure for the air conduction speaker 12. The pressure relief hole 1081 connects the accommodating chamber 1002 with the external environment, and the pressure relief hole 1081 extends from the connection with the accommodating chamber 1002 toward the side where the accommodating chamber 1001 is located. For example, part of the hole wall of the pressure relief hole 1081 extends from the connection with the accommodating chamber 1002 toward the side where the accommodating chamber 1001 is located. This arrangement effectively reduces the amount of housing space occupied by pressure relief hole 1081 outside accommodating chamber 1002, effectively utilizing the space between accommodating chambers 1001 and 1002. This improves the space utilization of housing assembly 10, allowing housing assembly 10 to be more compact and reasonable while still meeting the sound generation requirements of air conduction speaker 12. Furthermore, this oblique extension increases the size of pressure relief hole 1081, thereby providing better sound quality for air conduction speaker 12.

[0108] Optionally, the projection of the pressure relief hole 1081 in the direction X3 (as shown in FIG5 ) perpendicular to the arrangement direction of the accommodating cavity 1001 and the accommodating cavity 1002 at least partially overlaps with the accommodating cavity 1001. The direction X3 perpendicular to the arrangement direction of the accommodating cavity 1001 and the accommodating cavity 1002 can be understood as a direction perpendicular to the bone conduction vibration direction X1 and the air conduction vibration direction X2. The projection of the pressure relief hole 1081 in the vertical direction X3 at least partially overlaps with the accommodating cavity 1001, which can ensure that the size of the pressure relief hole 1081 meets the pressure relief conditions of the air conduction speaker 12, and can also effectively reduce the spatial position of the pressure relief hole 1081 in the accommodating cavity 1002 and the occupancy of its shell part, thereby effectively reducing the structural size of the shell assembly 10 located at the air conduction speaker 12.

[0109] Furthermore, the pressure relief hole 1081 is configured to extend obliquely toward the side of the accommodating chamber 1001. In a direction X3 perpendicular to the arrangement of the accommodating chambers 1001 and 1002, the size of the pressure relief hole 1081 gradually increases from the accommodating chamber 1002 toward the external environment. In other words, while the pressure relief hole 1081 extends obliquely toward the side of the accommodating chamber 1001, its size gradually increases from the accommodating chamber 1002 toward the external environment. This allows for smoother gas discharge and reduces the gas velocity, thereby improving the sound quality of the earphone 100.

[0110] 3 , 4 and 5 , the shell assembly 10 may include a partition wall 1012 for isolating the accommodating cavity 1001 and the accommodating cavity 1002 , at least a portion of the partition wall 1012 extends toward the side where the accommodating cavity 1001 is located, and forms a portion of the hole wall of the pressure relief hole 1081 .

[0111] Specifically, in a cross section perpendicular to the vibration direction of the bone conduction speaker 11 (i.e., the bone conduction vibration direction X1), the bone conduction speaker 11 has a long side edge 1101 and a short side edge 1102, with the long side edge 1101 being larger than the short side edge 1102. The partition wall 1012 includes a wall segment 1013 and a wall segment 1014. The wall segment 1013 is arranged side by side with the long side edge 1101. The wall segment 1014 is connected to the wall segment 1013 and extends obliquely from the periphery of the junction of the long side edge 1101 and the short side edge 1102 toward the side where the accommodating cavity 1001 is located. The wall segment 1014 is used to form a portion of the hole wall of the pressure relief hole 1081. In some embodiments, the wall segment 1013 can be referred to as the first wall segment, and the wall segment 1014 can also be referred to as the second wall segment.

[0112] The spatial layout and structural arrangement of the pressure relief holes 1081 can be implemented using the housing assembly 10 described above. Of course, the spatial layout and structural arrangement of the pressure relief holes 1081 can also be implemented using other solutions, which will not be discussed in detail here. In addition to the earphones 100 described above that are equipped with both the bone conduction speaker 11 and the air conduction speaker 12, the spatial layout and structural arrangement of the pressure relief holes 1081 can also be applied to earphones 100 equipped only with the air conduction speaker 12, which will not be discussed in detail here.

[0113] Optionally, as shown in Figure 3, the central axis Z of the bone conduction speaker 11 (the direction of the central axis of the bone conduction speaker 11 is also indicated by the symbol Z) and the central axis V of the air conduction speaker 12 may intersect with each other or may not intersect with each other. For example, the central axis Z and the central axis V are non-coplanar straight lines, and the two are not coplanar, and are thus staggered. In the direction perpendicular to the central axis Z and the central axis V, the central axis Z is arranged further away from the pressure relief hole 1081 than the central axis V. In layman's terms, in the LD direction shown in Figure 5, the bone conduction speaker 11 is arranged further away from the pressure relief hole 1080 than the air conduction speaker 12. By setting the central axis Z and the central axis V as non-coplanar straight lines and the central axis Z being further away from the pressure relief hole 1081 than the central axis V, more space can be made for the design of the pressure relief hole 1081, and the size of the pressure relief hole 1081 can be set larger, thereby improving the pressure relief effect.

[0114] Optionally, the distance between the central axis Z and the central axis V can be selected to be 0.3-1 mm, 0.5-0.8 mm, 0.6 mm, 0.7 mm, or 0.2-1.2 mm. By setting the above dimensions, on the one hand, the sound quality of the bone conduction speaker 11 and the air conduction speaker 12 can be ensured, and the volume of the core assembly 1 can be kept small. On the other hand, a larger size space can be provided for the pressure relief hole 1081, thereby allowing a larger pressure relief hole 1081 to be provided.

[0115] As mentioned above, the housing assembly 10 may include a housing 101, a housing 102, and a housing 103. The partition wall 1012 may be provided on the housing 101 and / or the housing 102, and the housing 101 and the housing 102 cooperate with each other to form the accommodating chamber 1001 and the pressure relief hole 1081. For example, the housing 101 and / or the housing 102 further form a part of the accommodating chamber 1002. For example, the housing 103 may form another part of the accommodating chamber 1002, and the housing 103 cooperates with the housing 101 and / or the housing 102 to form the accommodating chamber 1002. In particular, providing the partition wall 1012 on the housing 101 and / or the housing 102 may be understood as the partition wall 1012 being a part of the housing 101 and / or the housing 102. Of course, the arrangement of the partition wall 1012 is not limited to being arranged on the housing 101 and / or the housing 102. In other embodiments, the partition wall 1012 may also be a component independent of the housing 101 and / or the housing 102.

[0116] As shown in FIG3 , a partition wall 1012 is provided on the housing 101. The housing 101 is provided with a sub-accommodating chamber 1010 and a sub-accommodating chamber 1011 located on opposite sides of the partition wall 1012. The opening direction of the sub-accommodating chamber 1010 is arranged along the wall surface of the partition wall 1012. Specifically, the opening direction of the sub-accommodating chamber 1010 is parallel or approximately parallel to the wall surface of the partition wall 1012. The opening direction of the sub-accommodating chamber 1011 is arranged to intersect the wall surface of the partition wall 1012. The housing 102 is provided with a sub-accommodating chamber 1020. The housing 102 covers the open end of the sub-accommodating chamber 1010. The sub-accommodating chamber 1020 cooperates with the sub-accommodating chamber 1010 to form the accommodating chamber 1001. Housing 103 is provided with a sub-accommodating chamber 1030, which covers the open end of sub-accommodating chamber 1011. Sub-accommodating chamber 1030 and sub-accommodating chamber 1011 cooperate to form accommodating chamber 1002. In some embodiments, sub-accommodating chamber 1010 may also be referred to as the first sub-accommodating chamber; sub-accommodating chamber 1011 may also be referred to as the second sub-accommodating chamber; sub-accommodating chamber 1020 may also be referred to as the third sub-accommodating chamber; and sub-accommodating chamber 1030 may also be referred to as the fourth sub-accommodating chamber.

[0117] By setting a partition wall 10102, the shell 101 is divided into a sub-accommodation chamber 1010 set along the wall of the partition wall 1012 with its opening direction, and a sub-accommodation chamber 1012 set crosswise with the wall of the partition wall 1012. This allows both the sub-accommodation chamber 1010 and the sub-accommodation chamber 1012 to have a larger space, thereby improving the space utilization rate of the shell 101 and reducing the mutual interference between the vibrations of the bone conduction speaker 11 and the air conduction speaker 12 during operation, thereby improving the sound quality.

[0118] As shown in FIG4 , the air conduction speaker 12 includes a diaphragm 123, which divides the accommodating cavity 1002 into a cavity portion 1006 located on the side of the diaphragm 123 facing away from the partition wall 1012, and a cavity portion 1007 located between the diaphragm 123 and the partition wall 1012. A pressure relief hole 1081 is connected to the cavity portion 1007. As further shown in FIG3 and FIG5 , the housing assembly 10 is also provided with a sound outlet hole 1080 connected to the cavity portion 1006. The cavity portion 1007 is connected to the external environment through the pressure relief hole 1081. When the diaphragm 123 vibrates along the air conduction vibration direction X2, the cavity portion 1007 can be depressurized through the pressure relief hole 1081, thereby ensuring the normal and stable operation of the air conduction speaker 12. In some embodiments, the cavity portion 1006 may also be referred to as the first cavity portion; and the cavity portion 1007 may also be referred to as the second cavity portion.

[0119] Optionally, the distance between the diaphragm 123 and the cavity wall of the accommodating cavity 1002 in the vibration direction of the diaphragm 123 (the air-conducted vibration direction X2) can be selected to be greater than 0.8 mm, and can further be selected to be greater than 1 mm. Specifically, the distance between the diaphragm 123 and the partition wall 1012 (i.e., part of the cavity wall of the accommodating cavity 1002) (i.e., the distance in the air-conducted vibration direction X2) can be greater than 0.8 mm, and can further be selected to be greater than 1 mm. This ensures that the diaphragm 123 has a larger vibration space, and the gap distance can make the airflow in the cavity portion 1007 more evenly distributed, thereby making the air pressure more uniform and improving the consistency of the vibration of the diaphragm 123. In some embodiments, the distance between the diaphragm 123 and the partition wall 1012 can refer to the minimum distance between the two. In other embodiments, the distance between the diaphragm 123 and the partition wall 1012 can refer to the distance between the vibration area of ​​the diaphragm 123 (e.g., the central area or the area with the largest amplitude) and the partition wall 1012.

[0120] As shown in Figures 3 to 5 , optionally, when worn, the center of the pressure relief hole 1081 is no higher than the center of the sound outlet 1080, and the line connecting the centers of the pressure relief hole 1081 and the sound outlet 1080 points toward the user's ear when worn. Furthermore, optionally, the line connecting the centers of the pressure relief hole 1081 and the sound outlet 1080 points toward the ear canal when worn. In layman's terms, the line connecting the centers of the pressure relief hole 1081 and the sound outlet 1080 can be tilted upward toward the top of the head relative to the human body, pointing toward the user's ear. The center of the pressure relief hole 1081 can refer to the centroid of the pressure relief hole 1081. The center of the sound outlet 1080 can refer to the centroid of the sound outlet 1080. This arrangement minimizes the risk of the user's ear (particularly the ear canal) being at an acoustic null point when the headset is worn or when worn improperly (e.g., slightly tilted), thereby ensuring that the user can hear sound normally, reducing hearing loss, and improving sound quality.

[0121] If there are multiple sound holes 1081, it can be the line connecting the center of at least one of the sound holes 1080 and the center of the pressure relief hole 1081, or it can refer to the center of the shape formed by the center lines of the multiple sound holes 1080, as the center of the multiple sound holes 1080, that is, the line connecting the center of the multiple sound holes 1081 and the center of the pressure relief hole 1081 points to the user's ear.

[0122] Optionally, when the earphones are worn, the line connecting the center of the pressure relief hole 1081 and the center of the sound outlet 1080 has an angle of ≥0° and <90° with the user's coronal axis, and an angle of >0° and ≤90° with the user's vertical axis. This arrangement can further minimize the user's ear from being at an acoustic null point when the earphones are worn or worn improperly, effectively ensuring sound output and acoustic performance of the earphones 100.

[0123] As shown in FIG4 , the air conduction speaker 12 further includes a magnetic circuit assembly 120 and a voice coil 122. The magnetic circuit assembly 120 includes a housing 121 having an open end 1211 and an annular flange 1212 disposed at the open end 1211 of the housing 121 and protruding from the outer circumference of the housing 121. The edge of the diaphragm 123 is fixed to the side of the annular flange 1212 facing the open end 1211, and covers the open end 1211 of the housing 121. The voice coil 122 is connected to the diaphragm 123. As shown in FIG3 and FIG5 , the diaphragm 123 is disposed away from the sound outlet 1080 relative to the housing 121.

[0124] To achieve good sound quality, the air conduction loudspeaker 12 described above requires a larger diaphragm 123. This larger diaphragm also requires a larger supporting structure, such as the annular flange 1212. In other words, both the annular flange 1212 and the diaphragm 123 are radially larger than other components of the air conduction loudspeaker 12, significantly impacting the overall dimensions of the housing assembly 10. By setting the annular flange 1212 on the side away from the sound outlet 1080 and setting the diaphragm 123 on the side away from the sound outlet 1080, the diaphragm 123 and the annular flange 1212 can be closer to the interior of the shell assembly 10, so that the air conduction speaker 12 with a larger radial dimension is set away from the sound outlet 1080, and the smaller part of the air conduction speaker 12 can be close to the sound outlet 1080. Compared with the structure of the traditional speaker in which the diaphragm must face the sound outlet 1080, this reverse-set structure of the air conduction speaker 12 can effectively make the size of the part of the shell of the shell assembly 10 close to the sound outlet 1080 smaller, so that the size of the shell assembly 10 from the middle area to the part of the sound outlet 1080 can be reduced (that is, the radial dimension of the outer peripheral surface of the shell assembly 10 can be gradually reduced), thereby making the structure more compact, effectively improving the space utilization of the shell assembly 10, and reducing the overall volume of the entire shell assembly 10. Moreover, this reverse arrangement can optimize the sound path and thus improve the sound quality. In short, the air conduction speaker 12 is reversed along the air conduction vibration direction X2, thereby effectively reducing the structural size of the housing assembly 10.

[0125] Optionally, as shown in Figures 3 and 4, an annular table 1005 is provided on the cavity wall of the accommodating cavity 1002 (the annular table 1005 is also shown in Figure 5, but is not marked). As shown in Figures 4 and 5, the annular flange 1212 is pressed on the annular table 1005, and the diaphragm 123 divides the accommodating cavity 1002 into a cavity portion 1006 and a cavity portion 1007. The cavity portion 1006 is located on the side of the diaphragm 123 facing the sound outlet 1080, and the cavity portion 1007 is located on the side of the diaphragm 123 away from the sound outlet 1080. The magnetic circuit assembly 120 is located in the cavity portion 1006. As shown in Figure 5, a pressure relief hole 1081 for connecting the cavity portion 1007 with the external environment is provided on the shell assembly 10. Specifically, the annular table 1005 can be provided on the shell 101.

[0126] As shown in FIG4 , the diaphragm 123 can be located on the side of the annular flange 1212 facing the annular table 1005. The earphone 100 further includes a sealant 1041, which seals the gap between the side of the annular flange 1212 facing away from the annular table 1005 and the shell assembly 10. The annular flange 1212 cooperates with the shell assembly 10, and a glue groove 1042 for accommodating the sealant 1041 is formed on the side of the annular flange 1212 facing away from the annular table 1005. Based on the above-mentioned inverted arrangement of the air conduction speaker 12, since the diaphragm 123 is closer to the inner side of the shell assembly 10 than the glue groove 1042, the glue groove is closer to the outside. On the one hand, it is convenient to dispense glue, and on the other hand, when dispensing glue on the glue groove 1042, it is possible to avoid glue overflowing onto the diaphragm 123 as much as possible, thereby reducing the impact of glue on the diaphragm 123, thereby ensuring the sound quality effect.

[0127] As further shown in FIG. 11 , an annular flange 1212 may be provided with a sound guide hole 1213. The sound guide hole 1213 is configured to connect the space enclosed by the diaphragm 123 and the magnetic circuit assembly 120 with the cavity portion 1006 outside the magnetic circuit assembly 120. Part of the sound waves generated by the diaphragm 123 vibrating along the air-conducted vibration direction X2 are conducted along the sound guide hole 1213 to the cavity portion 1006 outside the magnetic circuit assembly 120.

[0128] Optionally, as shown in Figure 4, the shell 103 is used to accommodate one end of the cover 121 facing away from the diaphragm 123, and the sound outlet 1080 is provided on the shell 103. The cover 121 includes a circumferential side surface 121a and an end surface 121b, and the end surface 121b is connected to the circumferential side surface 121a. The end surface 121b faces the sound outlet 1080. A first gap 1031 is provided between the connection area between the end surface 121b of the cover 121 and the circumferential side surface 121a located on the first side and the shell 103 (see the dotted line position pointed to by the number 1031 in Figure 4). A second gap 1032 is provided between the connection area between the circumferential side surface 121a and the end surface 121b located on the second side of the cover 121 and the shell 103 (see the dotted line position pointed to by the number 1032 in Figure 4), and the first gap 1031 is smaller than the second gap 1032. The sizes of the first gap 1031 and the second gap 1032 may respectively refer to the distance between the corresponding connection area and the housing 103. For example, the distance refers to the length of the dashed line shown in FIG4 (the dashed line may be perpendicular to the inner surface of the corresponding position of the housing 103). The first side and the second side may refer to the first side and the second side of the peripheral side 121a that are disposed opposite to each other.

[0129] Referring to Figures 4, 5, 11, and 12, in a cross-section perpendicular to the vibration direction of the diaphragm 123, the housing 121 has a length direction LD and a width direction HD. The dimension of the housing 121 along the length direction LD is greater than the dimension of the housing 121 along the width direction HD, and the first side and the second side are disposed opposite each other along the width direction HD. As shown in Figure 4, the first side can be located on the side of the magnetic circuit assembly 120 that is closer to the user's face. The first gap 1031 is smaller than the second gap 1032, and the first gap 1031 is located on the first side. This allows the smaller first gap 1031 to be closer to the user's face, effectively reducing the size of the housing 103 while ensuring that the air conduction speaker 12 can output sound signals normally.

[0130] Furthermore, the first side is located on the side of the magnetic circuit assembly 120 close to the user's face, and the outer surface of at least part of the shell 103 is tilted toward the shell 101 and the shell 102 in the direction from the second side to the first side. For example, the outer surface of the part of the shell provided with the sound outlet 1080 is tilted toward the shell 101 and the shell 102 in the direction from the second side to the first side, that is, the sound outlet 1080 is located on the at least part of the shell 103 mentioned above. Through this arrangement, the sound outlet 1080 can be directed toward the user's ear, so that the sound signal output by the air conduction speaker 12 can be better transmitted to the user's ear. The part of the shell 103 opposite to the peripheral side surface 121a is connected to the part of the shell provided with the sound outlet. Optionally, after the above-mentioned air conduction speaker 12 is reversed, the outer surface of the portion of the shell 103 opposite to the peripheral side surface 121a can be inclined, specifically, it can gradually converge and tilt along the air conduction vibration direction X2 from the first shell 101 to the accommodating cavity 1002 in the direction away from the first shell 101, so that the shell assembly 10 can be compact and miniaturized, thereby reducing the volume of the shell assembly 10. Moreover, the shell assembly 10 can have a fitting surface 10a that contacts the user's face and an inclined surface 10b connected to the fitting surface 10a and inclined in a direction away from the fitting surface 10a (the inclined surface can be an arc-shaped inclined surface, gradually inclined away from the face). The inclined surface 10b is used to avoid the position of the user's tragus, thereby reducing pressure on the tragus, making it easier to wear, improving wearing comfort, and having better sound quality. The fitting surface 10a is mainly formed by the shell 102, and the inclined surface 10b can be formed by the shell 102 and the shell 103.

[0131] Furthermore, a portion of the end face 121b adjacent to the peripheral side surface 121a on the first side can be connected to the shell 103, or the connection area between the end face 121b and the peripheral side surface 121a on the first side can be in contact with the shell 103, which can further reduce the structural size of the shell assembly 10. The contact here can be direct contact, which can be further fixed by glue under direct contact, or it can be indirect contact fixed by glue. The above-mentioned contact position can further separate the portion of the cavity portion 1006 located outside the cover body 121 into a first space portion and a second space portion. The first space portion can specifically be formed between the portion of the peripheral side surface 121a on the first side and the shell 103, or between a portion of the end face 121b, the portion of the peripheral side surface 121 on the first side, and the shell 103, and the second space portion can be formed by at least a portion of the end face 121b, the portion of the peripheral side surface 121a on the second side, and the shell 103. The first gap 1031 is located in the first space portion, and the second gap is located in the second space portion, and the second space portion is connected to the sound outlet 1080. If the end surface 121b participates in the encirclement of the first space portion and the second space portion, then the area of ​​the portion of the end surface 121b that encloses the first space portion is smaller than the area of ​​the end surface 121b that encloses the second space portion, that is, the above-mentioned contact position is closer to the first side and closer to the portion of the shell of the shell assembly 10 opposite to the first side. The corresponding positions of the cover 121 and the shell 103 can contact to form the above-mentioned contact position. In other embodiments, the corresponding positions of the cover 121 and the shell 103 can be set to have a gap, and the gap can be greater than 0.1mm. The gap is set in this way so that when the cover 121 is affected by the vibration of the diaphragm 123 and vibrates, it does not collide with the shell 103, thereby reducing the possibility of noise generation. In short, corresponding to the aforementioned contact position, the position corresponding to the gap can be called the minimum gap position.

[0132] In the state where the contact position is set as described above, at least part of the sound waves can enter the second space portion along the peripheral side surface 121 a from the first space portion, and then be transmitted out from the sound outlet 1080 from the second space portion.

[0133] Optionally, referring to FIG4 , on the first side, the average distance between the annular flange 1212 and the housing 103 along the vibration direction X2 of the diaphragm 123 is greater than or equal to 0.5 mm. Optionally, on the second side, the second gap 1032 is greater than or equal to 0.5 mm. Specifically, on the first side, the average distance between the annular flange 1212 and the housing 103 along the vibration direction X2 of the diaphragm 123 is the average of the sum of the maximum distance L5 and the minimum distance L4 between the annular flange 1212 and the housing 103 along the vibration direction of the diaphragm 123 (i.e., the air-conducted vibration direction X2).

[0134] By setting the above dimensions, on the one hand, it is ensured that the sound cavity size is sufficient to achieve good sound quality before the sound waves are guided out of the sound outlet 1080, and on the other hand, the shell assembly 10 can be miniaturized and compacted. In addition, by setting the structure of the accommodating cavity 1002 and the air conduction speaker 12 in reverse as shown in Figure 4, the sound waves enter the second space portion along the peripheral side 121a from the first space portion (that is, they can enter the second space 1032 from the first gap 1031), and in the air conduction vibration direction X2, the second space portion actually gradually tilts toward the first space portion and better points to the sound outlet 1080, so that the transmission direction of the sound waves is more directed to the user's ears, further enhancing the transmission efficiency of the sound waves and improving the sound quality.

[0135] Optionally, as shown in FIG4 , the housing 121 includes a magnetically conductive cover 121 c . The magnetic circuit assembly 120 further includes a magnet 124 disposed within the magnetically conductive cover 121 c , and the voice coil 122 extends into a magnetic gap formed between the magnetically conductive cover 121 c and the magnet 124 .

[0136] Referring to Figures 6, 7, and 8, the bone conduction speaker 11 includes a voice coil assembly 111, a magnet assembly 112, and a transducer 113. The first of the voice coil assembly 111 and the magnet assembly 112 is disposed around the second of the voice coil assembly 111 and the magnet assembly 112. For example, the voice coil assembly 111 surrounds the magnet assembly 112. As shown in Figures 8 and 13, the transducer 113 includes a central fixing portion 1131, an annular fixing portion 1132 surrounding the periphery of the central fixing portion 1131, and a connecting rod assembly 1133 connecting the central fixing portion 1131 and the annular fixing portion 1132. The annular fixing portion 1132 is connected to the first of the voice coil assembly 111 and the magnet assembly 112, while the central fixing portion 1131 is connected to the second of the voice coil assembly 111 and the magnet assembly 112. For example, the annular fixing portion 1132 is connected to the voice coil assembly 111, and the central fixing portion 1131 is connected to the magnet assembly 112. The connecting rod assembly 1133 is used to elastically constrain the relative movement of the voice coil assembly 111 and the magnet assembly 112 along the central axis Z of the bone conduction speaker 11. Of course, the connecting rod assembly 1133 can maintain the stability of the position of the voice coil assembly 111 and the magnet assembly 112 in a radial direction perpendicular to the central axis Z, that is, it can constrain the voice coil assembly 111 and the magnet assembly 112 in the radial direction. Maintaining the relative stability of the voice coil assembly 111 and the magnet assembly 112 in the radial direction can further stabilize the relative movement of the two along the central axis Z, thereby improving the sound quality. For example, the annular fixing portion 1132 can serve as a stopper and rigidly constrain the relative movement range between the voice coil assembly 111 and the magnet assembly 112 along the central axis Z (shown in Figure 6). For example, the annular fixing portion 1132 is fixedly connected to the voice coil assembly 111. When used as a stopper, the magnet assembly 112 can be rigidly stopped when the vibration amplitude of the magnet assembly 112 relative to the voice coil assembly 111 is too large, thereby limiting the movement range of the magnet assembly 112 and thereby rigidly constraining the relative movement range between the voice coil assembly 111 and the magnet assembly 112. Of course, the stopper can also be implemented in other structural forms or methods.

[0137] The central axis direction Z of the bone conduction speaker 11 can coincide with the vibration direction of the bone conduction speaker 11 (i.e., the bone conduction vibration direction X1). The connecting rod assembly 1133 is an elastic member or is capable of elastic deformation, elastically constraining the voice coil assembly 111 and the magnet assembly 112. Elastic constraint can be understood as the relative motion of the voice coil assembly 111 and the magnet assembly 112 within the relative motion range allowed by the elastic deformation of the connecting rod assembly 1133. On the one hand, the connecting rod assembly 1133 can limit the relative motion range between the voice coil assembly 111 and the magnet assembly 112 along the bone conduction vibration direction X1. On the other hand, after the voice coil assembly 111 and the magnet assembly 112 achieve relative motion, they can be reset through elastic recovery. The stopper rigidly constrains the relative motion range between the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z. This can be understood as limiting the maximum relative motion range between the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z, preventing the relative motion between the voice coil assembly 111 and the magnet assembly 112 from exceeding the maximum relative motion range, which would cause the vibration transmission plate 113 to transition from elastic deformation to plastic deformation, resulting in a decrease in the elasticity of the vibration transmission plate 113 and damage to the voice coil assembly 111 and the magnet assembly 112. Rigidity and elasticity are relative terms, that is, the constraint strength of the stopper is greater than the constraint strength of the connecting rod assembly 1133.

[0138] In the example shown in FIG8 , the stopper is an annular fixing portion 1132. The projection of the annular fixing portion 1132 along the central axis direction Z partially overlaps with the outer end surface 1103 of the second of the voice coil assembly 111 and the magnet assembly 112. Specifically, the annular fixing portion 1132 is connected to the voice coil assembly 111, and the projection of the annular fixing portion 1132 along the central axis direction Z partially overlaps with the outer end surface 1103 of the magnet assembly 112. By setting the annular fixing portion 1132 to partially overlap with the outer end surface 1103 of the second one of the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z, when the amplitude of the relative movement of the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z is too large, the outer end surface 1103 of the voice coil assembly 111 and the magnet assembly 112 can abut against each other with the annular fixing portion 1132. Since the annular fixing portion 1132 is relatively fixed to the first one of the voice coil assembly 111 and the magnet assembly 112, the annular fixing portion 1132 rigidly abuts against the second one of the voice coil assembly 111 and the magnet assembly 112, thereby rigidly constraining the relative movement range of the voice coil assembly 111 and the magnet assembly 112. If the earphone 100 is dropped or impacted, the relative movement of the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z may be excessive, causing the vibration transmission plate 113 to transition from elastic deformation to plastic deformation, resulting in a decrease in the elasticity of the vibration transmission plate 113. The rigid constraint imposed by the annular fixing portion 1132 can reduce the performance degradation of the vibration transmission plate 113 due to excessive stretching, thereby reducing the impact on sound quality. Furthermore, by providing the annular fixing portion 1132 as a stop, there is no need for an additional stop structure, resulting in a simple and stable structure and reducing costs.

[0139] Optionally, as shown in Figures 6, 7 and 8, the outer end surface 1103 includes a central area 1104 and a peripheral area 1106 surrounding the central area 1104, the central area 1104 is provided with a raised portion 1105, the raised portion 1105 is protruded relative to the peripheral area 1106, the central fixing portion 1131 is fixedly connected to the raised portion 1105, and the projection of the annular fixing portion 1132 along the central axis direction Z partially overlaps with the peripheral area 1106.

[0140] Optionally, referring to FIG. 14 , a width L6 of an overlapping area between the annular fixing portion 1132 and the outer end surface 1103 along the radial direction of the bone conduction speaker 11 is greater than or equal to 0.03 mm (millimeter), thereby ensuring the restraining strength of the stopper.

[0141] Optionally, in a natural state, the spacing L7 between the upper surface of the raised portion 1105 and the lower surface of the annular fixing portion 1132 of the vibration transmission plate 113 in the central axis direction Z is less than or equal to 1 mm. Setting this spacing L7 allows the connecting rod assembly 1133 to undergo a reasonable pre-deformation when the central fixing portion 1131 and the raised portion 1105 are fixedly connected, thereby improving the vibration efficiency of the vibration transmission plate 113. If this spacing L7 is set too large, the pre-deformation of the connecting rod assembly 1133 will be large, which may easily exceed the yield limit and cause plastic deformation, resulting in a decrease in elastic deformation performance. Without pre-deformation, the gravity of the magnet assembly 112 or voice coil assembly 111, under the elastic suspension of the vibration transmission plate 113, will cause the relative position of the magnet assembly 112 and voice coil assembly 111 in the central axis direction Z to deviate, resulting in a non-neutral position, affecting the relative movement between the magnet assembly 112 and the voice coil assembly 111, and thus affecting the sound quality. In some embodiments, since the lower surface of the central fixing portion 1131 and the upper surface of the raised portion 1105 need to be welded together, the spacing distance L7 between the upper surface of the raised portion 1105 and the lower surface of the annular fixing portion 1132 in the central axis direction Z can also be considered to a certain extent as the spacing distance between the lower surface of the central fixing portion 1131 and the lower surface of the annular fixing portion 1132.

[0142] Of course, no matter whether it is fixed to the raised portion 1105 or to the central fixing portion 1131 through other structures or methods, the distance between the lower surface of the central fixing portion 1131 and the lower surface of the annular fixing portion 1132 in the central axis direction Z actually indicates the pre-deformation of the vibration transmission plate 113 in the central axis direction Z.

[0143] Optionally, in a natural state, the ratio of the distance between the lower surface of the central fixing portion 1131 and the lower surface of the annular fixing portion 1132 in the central axis direction Z to the extension component of the length of at least one of the connecting rods 1134 in the first direction W1 is 0 to 0.1, inclusive. Optionally, the ratio of the distance between the lower surface of the central fixing portion 1131 and the lower surface of the annular fixing portion 1132 in the central axis direction Z to the extension component of the length of at least one of the connecting rods 1134 in the second direction W2 is 0 to 0.18, inclusive. This configuration allows for appropriate pre-deformation of the vibration transmission plate 113. This ensures adequate support for the suspended component (voice coil assembly 111 or magnet assembly 112) without sagging, thus ensuring vibration performance, while also providing space for excellent elastic deformation. If this ratio is too large, the pre-deformation of the vibration transmission plate 113 may be excessive, exceeding the yield limit and resulting in a decrease in elastic performance. If the ratio is too small, the vibration transmission plate 113 will not provide sufficient support for the suspended components, resulting in reduced vibration performance and loss of sound quality.

[0144] Optionally, the area of ​​the upper surface of the protrusion 1105 on the outer end surface 1103 is less than or equal to 30%. On the one hand, the protrusion 1105 with a smaller area can achieve a relatively stable fixed connection with the connecting rod assembly 1133, and on the other hand, it does not occupy too much of the connecting rod assembly 133, so that the connecting rod assembly 1133 has enough area to produce elastic deformation, thereby providing sufficient deformation space, so that the vibration transmission plate 113 has better elasticity.

[0145] Optionally, as shown in Figures 7 and 8, the magnet assembly 112 includes a magnet 1121 and two magnetically conductive plates 1122. The two magnetically conductive plates 1122 are disposed on opposite side end surfaces of the magnet 1121 along the central axis direction Z. The raised portions 1105 are disposed on the magnetically conductive plates 1122, such that the outer surfaces of the magnetically conductive plates 1122 form a central region 1104 and a peripheral region 1106. The radial projections of the two magnetically conductive plates 1122 along the bone conduction speaker 11 overlap with the voice coil assembly 111. The peripheral region 1106 is disposed in contact with the magnet 1121. The raised portions 1105 are spaced apart from the magnet 1121. The peripheral region 1106 accounts for greater than or equal to 60% of the area of ​​the outer end surface 1103. In this way, by providing the protrusion 1105, the pre-deformation of the vibration transmitting plate 113 can be made more reasonable, the pre-deformation can be reduced, and the elastic deformation performance of the vibration transmitting plate 113 can be guaranteed. In addition, there is no need to provide additional connecting parts to connect the vibration transmitting plate 113 and the magnetic conductive plate 1122, which can reduce the overall mass of the entire bone conduction speaker 11, and thus improve the vibration effect of the bone conduction speaker 11. Optionally, the stopper is configured not to constrain the relative movement of the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z when the bone conduction speaker 11 is in normal working condition. However, when the bone conduction speaker 11 is in certain situations, such as falling or colliding, the relative movement between the voice coil assembly 111 and the magnet assembly 112 may exceed the elastic constraint range allowed by the elastic deformation of the vibration transmission plate 113. The stopper can rigidly constrain the relative movement of the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z, thereby reducing the probability that the relative movement between the voice coil assembly 111 and the magnet assembly 112 exceeds the allowable elastic constraint range, thereby reducing the probability that the vibration transmission plate 113 loses its elasticity due to excessive pulling.

[0146] Optionally, as shown in Figures 7 and 8 , there are two vibration transmission plates 113, one disposed on opposite sides of the bone conduction speaker 11 along the central axis Z. The connecting rod assembly 1133 of each vibration transmission plate 113 is composed of two connecting rods 1134. Of course, in other embodiments, the connecting rod assembly 1133 may also be composed of at least two connecting rods 1134.

[0147] Optionally, as shown in Figures 7 and 8, the voice coil assembly 111 is arranged around the magnet assembly 112, and includes two groups of voice coils 1110 arranged at intervals along the central axis direction Z and a magnetic conductive cover 1111 wound around the periphery of the two groups of voice coils 1110. The magnet assembly 112 includes a magnet 1121 and two magnetic conductive plates 1122. The two magnetic conductive plates 1122 are respectively arranged on the two side end surfaces of the magnet 1121 that are arranged opposite to each other along the central axis direction Z, wherein the radial projections of the two magnetic conductive plates 1122 along the bone conduction speaker 11 are respectively overlapped with the two groups of voice coils 1110, and the power supply directions of the two groups of voice coils 1110 are opposite to each other.

[0148] Optionally, the voice coil assembly 111 is disposed around the magnet assembly 112 , and the voice coil assembly 111 is fixed to the housing assembly 10 .

[0149] Optionally, the annular fixing portion 1132 can be fixedly connected to the magnetic cover 1111. Optionally, the annular fixing portion 1132 and the magnetic cover 1111 can be welded and fixed by offset welding. Specifically, the outer edge of the annular fixing portion 1132 and the outer edge of the corresponding end of the magnetic cover 1111 are offset from each other. For example, the outer edge of the annular fixing portion 1132 overlaps the end of the magnetic cover 1111 and is located between the outer peripheral surface and the inner peripheral surface of the magnetic cover 1111, thereby forming an offset. On the basis of this offset, the outer edge of the annular fixing portion 1132 and the end of the magnetic cover 1111 are welded and fixed. By setting the annular fixing portion 1132 and the magnetic cover 1111 to be welded and fixed by setting the offset welding method, the welding position is more clearly presented, which facilitates the welding process and the observation of the weld, and can effectively improve the welding efficiency and welding yield, thereby ensuring the welding strength. As for the form of the weld, it can be spot welding or continuous welding. Optionally, the weld between the annular fixing portion 1132 and the magnetic conductive cover 1111 can withstand a force between 400 and 1200N.

[0150] It is understood that in some other embodiments of the present application, the welding method may also be other methods such as stitch welding (butt welding). Stitch welding specifically involves stacking the annular fixing portion 1132 and the corresponding ends of the magnetic cover 1111, and welding the stacked positions of the annular fixing portion 1132 and the corresponding ends of the magnetic cover 1111 together by laser welding or other methods.

[0151] Optionally, as shown in Figures 13 and 15, the vibration transmission plate 113 is provided with observation holes 1130 running through both sides thereof. The observation holes 1130 running through both sides of the vibration transmission plate 113 may refer to the observation holes 1130 running through both sides of the vibration transmission plate 113 in the thickness direction of the vibration transmission plate 113. The thickness direction of the vibration transmission plate 113 may be, for example, the central axis direction Z. Specifically, the observation holes 1130 may be provided in the annular fixing portion 1132. Optionally, there may be multiple observation holes 1130, which are arranged at intervals along the circumference of the vibration transmission plate 113. By providing the observation holes 1130 on the vibration transmission plate 113, the magnetic circuit structure inside the bone conduction speaker 11, such as the magnet assembly 112 and other structures, can be observed through the observation holes 1130. It is possible to understand whether the position of the magnet assembly 112 is deviated through the observation holes 1130, and even the working condition of the magnet assembly 112 can be observed, which is convenient for troubleshooting or structural optimization.

[0152] Optionally, as shown in Figures 13, 15, and 16, the vibration transmission plate 113 may include a central fixing portion 1131 formed from a sheet material, an annular fixing portion 1132 surrounding the periphery of the central fixing portion 1131, and a connecting rod assembly 1133 connected between the central fixing portion 1131 and the annular fixing portion 1132. The inner ring edge 1132a of the annular fixing portion 1132 has a first direction W1 and a second direction W2 that are perpendicular to each other. In other words, the annular fixing portion 1132 has a first direction W1 and a second direction W2. The connecting rod assembly 1133 is composed of two connecting rods 1134, each connecting rod 1134 having an outer edge 1135 disposed toward the inner ring edge 1132a and an inner edge 1136 facing away from the inner ring edge 1132a. The extension component of the outer edge 1135 along the first direction W1 is greater than or equal to half the dimension of the inner ring edge 1132a along the first direction W1, and the width of the connecting rod 1134 is greater than or equal to one tenth the dimension of the inner ring edge 1132a along the second direction W2.

[0153] Specifically, the above description is based on the scenario where the central fixing portion 1131, the annular fixing portion 1132, and the connecting rod assembly 1133 are arranged coplanarly. If the inner ring edge 1132a has distortion points such as protrusions or grooves, these distortion points should be eliminated, and the inner ring edge 1132a should be formed by a reasonable transition of the lines outside the distortion points. For example, the second direction W2 refers to the direction of the shortest line segment that intersects the inner ring edge 1132a through the geometric center of the inner ring edge 1132a. The first direction W1 is a direction perpendicular to the second direction W2 within the plane of the central fixing portion 1131, the annular fixing portion 1132, and the connecting rod assembly 1133. Among them, the vibration transmission plate 113 is set as a two-rod structure, and the extension component of the outer edge 1135 along the first direction W1 is greater than or equal to half of the size of the inner ring edge 1132a along the first direction W1, which can effectively increase the extension length of the connecting rod 1134, thereby making the connecting rod 1134 have a larger deformation space. At the same time, since the width of the connecting rod 1134 is greater than or equal to one tenth of the size of the inner ring edge 1132a along the second direction W2, the tolerance and service life of the connecting rod 1134 can be improved.

[0154] Optionally, the extension component of the outer edge 1135 along the first direction W1 can be further greater than or equal to two-thirds of the dimension of the inner ring edge 1132a along the first direction W1. Thus, the extension component of the outer edge 1135 along the first direction W1 can be further greater than or equal to two-thirds of the dimension of the inner ring edge 1132a along the first direction W1, which can further increase the extension length of the connecting rod 1134 and thereby provide the connecting rod 1134 with a larger deformation space.

[0155] Optionally, the extension component of the outer edge 1135 along the second direction W2 is greater than or equal to one-half of the dimension of the inner ring edge 1132a along the second direction W2. Thus, the extension component of the outer edge 1135 along the second direction W2 is greater than or equal to one-half of the dimension of the inner ring edge 1132a along the second direction W2, which can increase the extension length of the connecting rod 1134 and thereby provide the connecting rod 1134 with a larger deformation space.

[0156] Optionally, the extension component of the outer edge 1135 along the second direction W2 is greater than or equal to two-thirds of the dimension of the inner ring edge 1132a along the second direction W2. Thus, the extension component of the outer edge 1135 along the second direction W2 is greater than or equal to two-thirds of the dimension of the inner ring edge 1132a along the second direction W2, which can further increase the extension length of the connecting rod 1134 and thereby provide the connecting rod 1134 with a larger deformation space.

[0157] Optionally, the width of the connecting rod 1134 is greater than or equal to one eighth of the dimension of the inner ring edge 1132a along the second direction W2. Thus, the width of the connecting rod 1134 is greater than or equal to one eighth of the dimension of the inner ring edge 1132a along the second direction W2, which can further improve the durability and service life of the connecting rod 1134.

[0158] Optionally, the two connecting rods 1134 are 180 degrees rotationally symmetrical about the central fixing portion 1131. This arrangement can effectively improve the vibration transmission stability and balance of the vibration transmission plate 113.

[0159] Optionally, the dimension of the inner ring edge 1132a along the first direction W1 is greater than the dimension of the inner ring edge 1132a along the second direction W2. In other words, the annular fixing portion 1132 may be arranged in a generally racetrack shape. The ratio of the dimension of the inner ring edge 1132a along the first direction W1 to the dimension of the inner ring edge 1132a along the second direction W2 is greater than or equal to 1.5.

[0160] Optionally, two connecting rods 1134 are connected to opposite sides of the central fixing portion 1131 in the first direction W1. This arrangement effectively increases the length of the connecting rods 1134. Specifically, as shown in Figure 15, the inner ring edge 1132a includes two edge segments 11321 spaced apart along the second direction W2. Each connecting rod 1134 is configured to extend from the central fixing portion 1131 through the gap between the central fixing portion 1131 and one of the two first sub-inner ring edges 1132a, and then connect to the other of the two edge segments 11321.

[0161] Optionally, one end of the connecting rod 1134 is smoothly connected to the central fixing portion 1131. The other end of the connecting rod 1134 is smoothly connected to the annular fixing portion 1132. Further, as shown in Figure 16, the connecting rod 1134 includes a first sub-rod portion 1137 connected to the central fixing portion 1131, a second sub-rod portion 1138 connected to the annular fixing portion 1132, and a third sub-rod portion 1139 connected between the first sub-rod portion 1137 and the second sub-rod portion 1138. The width of at least a portion of the first sub-rod portion 1137 gradually widens in a direction toward the central fixing portion 1131 and is smoothly connected to the central fixing portion 1131. At least a portion of the second sub-rod portion 1138 gradually widens in a direction toward the annular fixing portion 1132 and is smoothly connected to the annular fixing portion 1132. The width of the third sub-rod portion 1139 remains consistent.

[0162] Optionally, the inner edge 1136 of the first sub-rod portion 1137 and the inner edge 1136 of the second sub-rod portion 1138 are arranged in an arc shape, and the inner edge 1136 of the third sub-rod portion 1139 is arranged in a straight line and smoothly transitions with the inner edge 1136 of the first sub-rod portion 1137 and the inner edge 1136 of the second sub-rod portion 1138, and / or the outer edge 1135 of the first sub-rod portion 1137 and the outer edge 1135 of the second sub-rod portion 1138 are arranged in an arc shape, and the outer edge 1135 of the third sub-rod portion 1139 is arranged in a straight line and smoothly transitions with the outer edge 1135 of the first sub-rod portion 1137 and the outer edge 1135 of the second sub-rod portion 1138. Such an arrangement can effectively reduce the internal stress at the connection points between the connecting rod 1134 and the central fixing portion 1131 and the annular fixing portion 1132.

[0163] Optionally, the portion of the second sub-rod 1138 connected to the third sub-rod 1139 maintains the same width as the third sub-rod 1139 , and / or the portion of the first sub-rod 1137 connected to the third sub-rod 1139 maintains the same width as the third sub-rod 1139 .

[0164] Optionally, the extension component of the outer edge 1135 of the third sub-rod portion 1139 along the first direction W1 is greater than or equal to half of the dimension of the inner ring edge 1132a along the first direction W1, and the width of the third sub-rod portion 1139 is greater than 0.5 mm.

[0165] Optionally, the inner edge 1136 of the first sub-rod portion 1137 is configured as a concave arc, and the edge of the central fixing portion 1131 that connects to the inner edge 1136 of the first sub-rod portion 1137 is configured as a convex arc, smoothly transitioning to the inner edge 1136 of the first sub-rod portion 1137. This configuration, on the one hand, allows for a reasonable transition between the central fixing portion 1131 and the first sub-rod portion 1137, and on the other hand, the convex arc configuration ensures the size of the central fixing portion 1131, thereby ensuring the fixing effect between the central fixing portion 1131 and the magnet assembly 112.

[0166] Optionally, the bone conduction speaker 11 may include two vibration transmitting plates 113. The two vibration transmitting plates 113 are disposed on opposite sides of the bone conduction speaker 11 along the central axis direction Z. The connecting rod assembly 1133 of the first of the two vibration transmitting plates 113 extends in a direction opposite to the connecting rod assembly 1133 of the second of the two vibration transmitting plates 113, starting from the central fixed portion 1131 to which it is connected. This arrangement can offset the rotational inertia of the bone conduction speaker 111 about the bone conduction vibration direction X1 when it vibrates along the bone conduction vibration direction X1.

[0167] Optionally, the mass of the magnet assembly 112 in the bone conduction speaker 11 accounts for less than or equal to 80%, and the mass of the load pushed by the bone conduction speaker 11 is less than or equal to 9 times the mass of the bone conduction speaker 11. The load pushed by the bone conduction speaker 11 includes the total mass of the housing assembly 10 and all parts disposed within the housing assembly 10 except the magnet assembly 112.

[0168] Optionally, the mass of the bone conduction speaker 11 is less than or equal to 8 grams.

[0169] Optionally, the vibration transmitting piece 113 is configured to enable the earphone 100 to have a resonance peak, and the peak value of the resonance peak is less than or equal to 500 Hz.

[0170] 3 and 17 , the movement assembly 1 includes a housing assembly 10, a bone conduction speaker 11, and a fixing glue 1062. The housing assembly 10 can be used to place the bone conduction speaker 11. The fixing glue 1062 is used to fix the bone conduction speaker 11 to the housing assembly 10. Specifically, the housing assembly 10 can be provided with a receiving cavity 1001. The bone conduction speaker 11 can be disposed in the receiving cavity 1001, and the bone conduction speaker 11 is configured to vibrate along the central axis direction Z of the bone conduction speaker 11. The portion of the housing assembly 10 corresponding to the bone conduction speaker 11 fits the user's face, and the bone conduction speaker 11 can drive the housing assembly 10 to vibrate when vibrating, so as to convert the electrical signal into a vibration signal and transmit the vibration signal to the auditory nerve through human tissue by vibration. The central axis direction Z of the bone conduction speaker 11 is shown as the Z direction in FIG17 .

[0171] As shown in Figures 3 and 17, the earphone 100 may further include a wearing component 27. The shell 101 and the shell 102 may cooperate to form a accommodating cavity 1001, the shell 101 is connected to the wearing component 27, and the fixing glue 1062 connects the shell 101 and the bone conduction speaker 11. The shell 101 and the shell 102 are arranged to cooperate to form the accommodating cavity 1001, which can facilitate the installation and fixing of the wearing component 27 and the bone conduction speaker 11 during production of the earphone 100, reduce the difficulty of manufacturing the earphone 100, and facilitate the subsequent disassembly and maintenance of the earphone 100. The movement assembly 1 may include a shell assembly 10 and a microphone assembly 13. The microphone assembly 13 may be arranged in the accommodating cavity 1001. As shown in Figure 17, a sound inlet 1082 is provided on the shell assembly 10, and the microphone assembly 13 can be used to collect external sounds input through the sound inlet 1082.

[0172] The wearing assembly 27 may include, for example, ear hooks, headbands, clips, and other components, so as to facilitate wearing and securing the earphones 100 in a certain position via the wearing assembly 27. Optionally, the wearing assembly 27 may be disposed on the housing 101 in a radial direction of the bone conduction speaker 11 so that the wearing assembly 27 does not affect the vibration effect of the bone conduction speaker 11 in the central axis direction Z.

[0173] As shown in Figure 7, the voice coil assembly 111 can be arranged around the magnet assembly 112, and the vibration transmission plate 113 can elastically connect the voice coil assembly 111 and the magnet assembly 112 to elastically constrain the voice coil assembly 111 and the magnet assembly 112 to move relative to each other along the central axis direction Z, and the fixing glue 1062 connects the shell assembly 10 and the voice coil assembly 111.

[0174] Specifically, when current passes through the voice coil assembly 111, the voice coil assembly 111 can interact with the magnet assembly 112, thereby generating vibrations. Therefore, by controlling the current passing through the voice coil assembly 111, the voice coil assembly 111 can interact with the magnet assembly 112 to generate a corresponding vibration signal. The vibration signal can then be transmitted to the housing assembly 10 and then to human tissue.

[0175] The voice coil assembly 111 and the magnet assembly 112 are elastically connected through the vibration transmission plate 113, which can elastically constrain the voice coil assembly 111 and the magnet assembly 112 so that when the voice coil assembly 111 vibrates, the voice coil assembly 111 and the magnet assembly 112 are not easily moved relative to each other along the central axis direction Z, thereby ensuring the stability of the earphone 100.

[0176] Optionally, fixing glue 1062 connects the housing 101 and the voice coil assembly 111. Specifically, the inner circumference of the housing 101 and the outer circumference of the voice coil assembly 111 may face each other, and the fixing glue 1062 may fill the gap between the inner circumference of the housing 101 and the outer circumference of the voice coil assembly 111 to connect and fix the housing 101 and the voice coil assembly 111.

[0177] Optionally, the housing 101 and the housing 102 may cooperate with each other along the central axis direction Z, with the housing 102 further pressing and securing the voice coil assembly 111 to the housing 101. Using the housing 102 to further press and secure the voice coil assembly 111 to the housing 101 in this manner can further stabilize the position of the voice coil assembly 111 in the central axis direction Z. Further pressing and securing the voice coil assembly 111 by the cooperation of the housings 101 and 102 can reduce the need for additional securing means and facilitate vibration of the housing assembly 10 when the voice coil assembly 111 vibrates in the central axis direction Z, thereby improving the structural tightness of the earphone 100.

[0178] As previously mentioned, there can be two sets of voice coils 1110, with the magnetic shields 1111 wound around the two sets of voice coils 1110. The two sets of voice coils 1110 allow current to flow through them, interacting with the magnet assembly 112 to generate vibration. Spacing the two sets of voice coils 1110 along the central axis Z enhances the vibration of the voice coil assembly 1111.

[0179] The magnetic cover 1111 is used to constrain the magnetic field direction of the magnet assembly 112, and is also used to contact the shell assembly 10. When the two groups of voice coils 1110 vibrate, they can drive the magnetic cover 1111 to vibrate, thereby transmitting the vibration signal to the shell assembly 10 through the magnetic cover 1111.

[0180] As previously mentioned, there can be two magnetic conductive plates 1122, each of which can be disposed on opposite side end surfaces of the magnet 1121 along the central axis direction Z. The two magnetic conductive plates 1122 are used to constrain the direction of the magnetic field of the magnet 1121 on the opposite side end surfaces of the magnet 1121 along the central axis direction Z, thereby enhancing the interaction between the magnet 1121 and the voice coil 1110. Optionally, the projections of the two magnetic conductive plates 1122 along the radial direction E overlap with the two voice coils 1110, allowing the two magnetic conductive plates 1122 to act on both voice coils 1110. Furthermore, the two voice coils 1110 are energized in opposite directions to ensure that the forces acting on the two voice coils 1110 are in the same direction when interacting with the same magnet 1121.

[0181] As shown in Figures 17 to 19 , the housing assembly 10 and / or the bone conduction speaker 11 may be provided with a positioning portion 1061. The positioning portion 1061 is used to maintain a predetermined gap between the inner circumference of the housing assembly 10 and the outer circumference of the bone conduction speaker 11 along the radial direction of the bone conduction speaker 11. The radial direction E of the bone conduction speaker 11 can be represented by the direction E in Figures 17 to 19 . Any direction perpendicular to the central axis direction Z can be referred to as the radial direction E of the bone conduction speaker 11.

[0182] The positioning portion 1061 may be located on the housing assembly 10, the bone conduction speaker 11, or both. This embodiment does not specifically limit the location of the positioning portion 1061. For example, the positioning portion 1061 may be located on one of the housing assembly 10 and the bone conduction speaker 11, and abut against the other along the radial direction of the bone conduction speaker 11, thereby creating a certain gap between the inner circumference of the housing assembly 10 and the outer circumference of the bone conduction speaker 11.

[0183] The fixing glue 1062 can fill the gap and connect the housing assembly 10 and the bone conduction speaker 11. In this way, the fixing glue 1062 can fix the housing assembly 10 and the bone conduction speaker 11 in the circumferential direction of the bone conduction speaker 11, thereby preventing the bone conduction speaker 11 from deviating when vibrating along its central axis direction Z.

[0184] Maintaining a predetermined gap between the bone conduction speaker 11 and the housing assembly 10 in the circumferential direction of the bone conduction speaker 11 can facilitate the addition of the fixing glue 1062, simplifying the manufacturing process of the earphone 100, and allowing the fixing glue 1062 to flow in the circumferential direction of the bone conduction speaker 11 and more evenly fill the gap between the bone conduction speaker 11 and the housing assembly 10, thereby enhancing the fixing effect of the fixing glue 1062 and stabilizing the position of the bone conduction speaker 11 in the accommodating cavity 1001, making the structure of the earphone 100 more compact and stable.

[0185] Optionally, there may be multiple positioning portions 1061, spaced apart along the circumference of the bone conduction speaker 11. Multiple positioning portions 1061 are spaced apart along the circumference of the bone conduction speaker 11, and the multiple positioning portions 1061 are positioned to create a predetermined gap around the circumference of the bone conduction speaker 11, facilitating the application of the fixing glue 1062 around the circumference of the bone conduction speaker 11, thereby enhancing the fixing effect of the fixing glue 1062. Optionally, the multiple positioning portions 1061 may be symmetrically arranged on opposite sides of the circumference of the bone conduction speaker 11. As shown in FIG. 18 , the vibration transmission plate 113 may elastically constrain the relative movement of the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z. Optionally, the central fixing portion 1131 may be fixedly connected to the magnetic conductive plate 1122, the annular fixing portion 1132 may be fixedly connected to the magnetic conductive cover 1111, and the connecting rod assembly 1133 connects the annular fixing portion 1132 and the central fixing portion 1131.

[0186] Specifically, the positioning portion 1061 is provided on the outer edge of the annular fixing portion 1132 of the vibration transmitting plate 113 and extends radially toward the inner circumference of the housing assembly 10 to abut against the inner circumference of the housing assembly 10. In this way, a predetermined gap can be maintained between the inner circumference of the housing assembly 10 and the outer circumference of the bone conduction speaker 11 in the radial direction of the bone conduction speaker 11 to facilitate filling of the fixing glue 1062. By arranging the positioning portion 1061 on the vibration transmission plate 113, the positioning portion 1061 can be easily processed, and the processing technology is simple. In addition, the vibration of the vibration transmission plate 113 is mainly in the central axis direction Z, and mainly relies on the elastic deformation of the connecting rod assembly 1133. The positioning portion 1061 is arranged on the outer ring edge of the annular fixing portion 1132. On the one hand, it will not affect the elastic deformation of the connecting rod assembly 1133, thereby ensuring the vibration and sound quality effects of the bone conduction speaker 11. On the other hand, it can also enhance the strength of the annular fixing portion 1132. Moreover, the displacement of the annular fixing portion 1132 is small, and the position is relatively fixed, which can better support the inner circumference of the shell assembly 10 and can more stably maintain the predetermined gap.

[0187] As previously mentioned, there can be two vibration transmitting plates 113, one on each side of the bone conduction speaker 11 along the central axis Z. Both vibration transmitting plates 113 can be provided with a positioning portion 1061 on the outer edge of the annular fixing portion 1132, thereby ensuring more uniform force on the bone conduction speaker 11. Along the central axis Z of the bone conduction speaker 11, the gap between the inner circumference of the housing assembly 10 and the outer circumference of the bone conduction speaker 11 can maintain a consistent width, thereby ensuring more accurate positioning of the bone conduction speaker 11 and improving the filling effect of the fixing glue 1062.

[0188] In some embodiments, the positioning portion 1061 is placed on the outer ring edge of the annular fixing portion 1132 of the vibration transmission plate 113, which can also improve the installation positioning of the vibration transmission plate 113 when it is fixed to the magnet assembly 112 and the magnetic cover 1111, improve the positioning accuracy, and thus ensure that the magnetic gap between the magnetic cover 1111 fixed with the voice coil 1110 and the magnet assembly 112 is relatively uniform and balanced, thereby improving the sound quality. For example, the bone conduction speaker 11 can be assembled by using two upper and lower jigs. The lower jig is used to position the magnet assembly 112 and the magnetic cover 1111 fixed with the voice coil 1110, and the upper jig is used to position the vibration plate 113. In this way, the vibration plate 113 can be positioned by the positioning portion 1061. The upper jig can be provided with holes for welding the vibration plate 113 to the magnet assembly 112 and the magnetic cover 1111. The upper jig aligns the corresponding position on the vibration plate 113 (for example, the center fixing portion 1131) with the corresponding hole on the upper jig. Then, the upper jig and the lower jig are aligned so that the corresponding positions on the vibration transmission plate 113 (for example, the central fixing portion 1131) and the corresponding positions on the magnet assembly 112 (for example, the raised portion 1105) can be aligned with each other, and the corresponding positions on the vibration transmission plate 113 (for example, the annular fixing portion 1132) and the corresponding positions on the magnetic cover 1111 can also be aligned with each other, and then the corresponding subsequent operations are performed through the holes on the upper jig, such as pre-deforming the vibration transmission plate 113, fixing the vibration transmission plate 113, the magnetic cover 1111 and the magnet assembly 112.

[0189] As shown in FIG. 19 to FIG. 21 , the positioning portion 1061 may also be integrally formed on the inner circumferential surface of the housing assembly 10 .

[0190] In some embodiments, the inner circumference of the housing assembly 10 may be provided with a plurality of positioning portions 1061 at intervals. The plurality of positioning portions 1061 may be spaced apart on the housing assembly 10 and may extend toward the bone conduction speaker 11 and abut against the outer circumference of the bone conduction speaker 11, thereby creating a certain gap between the inner circumference of the housing assembly 10 and the outer circumference of the bone conduction speaker 11. Alternatively, the plurality of positioning portions 1061 may be integrally formed on the inner circumference of the housing 101. By providing the positioning portion 1061 on the inner circumferential surface of the housing assembly 10, the bone conduction speaker 11 can be positioned during assembly, facilitating assembly. Furthermore, since the positioning portion 1061 is provided on the inner circumferential surface of the housing assembly 10, its position is stable and unaffected by the vibration of the bone conduction speaker 11, thereby stably maintaining a predetermined gap. Furthermore, providing the positioning portion 1061 on the housing assembly 10 allows for a more compact bone conduction speaker 11, facilitating vibration control. Furthermore, the contact of the positioning portion 1061 on the housing assembly 10 with the bone conduction speaker 11 further ensures vibration transmission from the bone conduction speaker 11 to the housing assembly 10, thereby maintaining the sound quality of the bone conduction speaker 11. Furthermore, processing and positioning the positioning portion 1061 on the housing assembly 10 is relatively simple, simplifying the manufacturing process of the positioning portion 1061 and, in turn, simplifying the manufacturing of the earphone 100.

[0191] In other embodiments, as shown in FIG22 , the positioning portion 1061 may include a first positioning portion 1063 integrally formed on the outer edge of the annular fixing portion 1132 and a second positioning portion 1064 integrally formed on the inner circumference of the housing assembly 10. The first positioning portion 1063 is disposed on the annular fixing portion 1132 and extends along the radial direction E of the bone conduction speaker 11 to abut the inner circumference of the housing assembly 10. The second positioning portion 1064 is disposed on the inner circumference of the housing assembly 10 and extends along the radial direction E of the bone conduction speaker 11 to abut the outer circumference of the bone conduction speaker 11. Of course, the first positioning portion 1063 is not limited to being disposed on the annular fixing portion 1132; it may also be disposed on an outer circumference of the bone conduction speaker 11, such as the outer circumference of the voice coil assembly 111.

[0192] By providing positioning portions 1061 on both the bone conduction speaker 11 and the shell assembly 10, bidirectional abutment in the radial direction E is achieved. Even when the supporting effect of the positioning portion 1061 on one side is poor, the positioning portion 1061 on the other side can still ensure the supporting effect, thereby improving redundancy and further stabilizing the position of the bone conduction speaker 11, so that the positioning portion 1061 can more stably support the gap between the inner circumference of the shell assembly 10 and the outer circumference of the bone conduction speaker 11, so as to facilitate the addition of fixing glue 1062, and make the force on the bone conduction speaker 11 more uniform, so that the structure of the earphone 100 is more stable.

[0193] Optionally, the first positioning portion 1063 and the second positioning portion 1064 may be staggered along the circumference of the bone conduction speaker 11. This arrangement facilitates assembly of the bone conduction speaker 11 into the housing assembly 10, reduces contact and friction between the first positioning portion 1063 and the second positioning portion 1064, and further stabilizes the position of the bone conduction speaker 11, thereby enhancing the structural integrity of the earphone 100.

[0194] Referring to FIG. 23 , as previously described, the housing assembly 10 may be provided with a housing cavity 1001. The bone conduction speaker 11 may be disposed within the housing cavity 1001. A vibration transmission plate 113 may connect the voice coil assembly 111 and the magnet assembly 112, elastically constraining the relative movement of the voice coil assembly 111 and the magnet assembly 112 along the central axis Z of the bone conduction speaker 11. The first of the voice coil assembly 111 and the magnet assembly 112 is rigidly connected to the housing assembly 10, thereby transmitting vibrations generated by the relative movement of the voice coil assembly 111 and the magnet assembly 112 to the housing assembly 10 for bone conduction.

[0195] Specifically, the first of the voice coil assembly 111 and the magnet assembly 112 may be referred to as the voice coil assembly 111, and the second may be referred to as the magnet assembly 112. In this case, the voice coil assembly 111 may be rigidly connected to the housing assembly 10. In other embodiments, the first of the voice coil assembly 111 and the magnet assembly 112 may be referred to as the magnet assembly 112, and the second may be referred to as the magnet assembly 112.

[0196] As previously described, the central fixing portion 1131 can be connected to the magnet assembly 112, and the annular fixing portion 1132 can be connected to the voice coil assembly 111. The vibration transmission plate 113 itself can be elastic or capable of elastic deformation. When the voice coil assembly 111 and the magnet assembly 112 move relative to each other, the vibration transmission plate 113 can adaptively elastically deform. When the vibration transmission plate 113 adaptively elastically deforms, the central fixing portion 1131 connected to the magnet assembly 112 and the annular fixing portion 1132 connected to the voice coil assembly 111 can achieve relative movement along the central axis direction Z.

[0197] Under normal circumstances, when the earphone 100 is normally outputting sound, the relative motion range of the magnet assembly 112 and the voice coil assembly 111 is within the allowable range, that is, the relative motion between the magnet assembly 112 and the voice coil assembly 111 is generated by elastic deformation of the vibration transmission plate 113. However, in some special scenarios, the relative motion range of the magnet assembly 112 and the voice coil assembly 111 may exceed the allowable range. For example, when the earphone 100 falls to the ground or collides, the magnet assembly 112 continues to move due to inertia when the earphone 100 contacts the ground, which may cause the magnet assembly 112 to move too far relative to the voice coil assembly 111, that is, the force exerted on the vibration transmission plate 113 is large, resulting in excessive stretching of the vibration transmission plate 113, which may cause the vibration transmission plate 113 to exceed the elastic deformation range and undergo plastic deformation, resulting in a decrease in elasticity, thereby reducing the elastic constraint effect and affecting the performance of the earphone 100.

[0198] To alleviate the aforementioned issues, the housing assembly 10 may be provided with a stopper 107. The stopper 107 can rigidly constrain the relative motion range between the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z. Specifically, the stopper 107 can rigidly constrain the magnet assembly 112 when the magnet assembly 112 moves excessively compared to the voice coil assembly 111, thereby limiting the magnet assembly 112's motion. This, in turn, can reduce the reduction in the elasticity of the vibration transmission plate 113 caused by excessive motion.

[0199] By setting the stopper 107, the relative movement range between the voice coil assembly 111 and the magnet assembly 112 is limited, so as to avoid the relative movement range between the voice coil assembly 111 and the magnet assembly 112 being too large or reduce the possibility of the relative movement range between the voice coil assembly 111 and the magnet assembly 112 being too large, thereby avoiding the vibration transmission plate 113 from being over-stretched as much as possible.

[0200] The rigid constraint applied by the stopper 107 and the elastic constraint applied by the vibration transmission plate 113 are relative, that is, when the stopper 107 stops the magnet assembly 112, the constraint strength applied to the magnet assembly 112 is greater than the constraint strength applied by the vibration transmission plate 113 to the magnet assembly 112 and the voice coil assembly 111.

[0201] Optionally, a stopper 107 is provided protruding from the housing assembly 10. Specifically, the first of the voice coil assembly 111 and the magnet assembly 112 is fixedly connected to the housing assembly 10, and the stopper 107 is provided on a surface of the housing assembly 10 facing the second of the voice coil assembly 111 and the magnet assembly 112 along the central axis direction Z. After the second of the voice coil assembly 111 and the magnet assembly 112 moves a predetermined distance relative to the first of the voice coil assembly 111 and the magnet assembly 112, the stopper 107 can abut against the second of the voice coil assembly 111 and the magnet assembly 112 or the vibration transmitting plate 113, thereby effectively limiting the relative motion range of the voice coil assembly 111 and the magnet assembly 112.

[0202] For example, the voice coil assembly 111 is fixedly connected to the housing assembly 10, and the stopper 107 can abut against the magnet assembly 112 or the vibration-transmitting plate 113 after the magnet assembly 112 moves a predetermined distance relative to the voice coil assembly 111, thereby applying a rigid constraint to the magnet assembly 112 or the vibration-transmitting plate 113. This can limit the relative motion range of the voice coil assembly 111 and the magnet assembly 112.

[0203] In other embodiments, the stopper 107 may also be in a plate shape or any other shape.

[0204] Optionally, the stopper 107 is integrally formed with the housing assembly 10 , which can improve production efficiency and assembly efficiency.

[0205] The stopper 107 can directly or indirectly apply a rigid constraint to the magnet assembly 112 after the magnet assembly 112 moves a predetermined distance relative to the voice coil assembly 111. Optionally, the stopper 107 can indirectly apply a rigid constraint to the magnet assembly 112 by directly applying a rigid constraint to the vibration transmission plate 113.

[0206] 24 , the stopper 107 may abut against the central fixing portion 1131 and / or the connecting rod assembly 1133 of the vibration transmission plate 113 to apply a rigid constraint to the vibration transmission plate 113 .

[0207] Optionally, the stopper 107 includes a first stopper 1071 for abutting the central fixing portion 1131. The first stopper 1071 can effectively limit the vibration range of the vibration transmitting plate 113 and thus limit the relative motion range of the voice coil assembly 111 and the magnet assembly 112.

[0208] Optionally, the stopper 107 includes a second stopper 1072 for abutting the connecting rod assembly 1133. The second stopper 1072 can cooperate with the first stopper 1071 to enable the stopper 107 to abut against the vibration transmission plate 113 over a wider range, thereby providing more comprehensive contact with the vibration transmission plate 113 and further protecting the vibration transmission plate 113.

[0209] Optionally, the number of the first stopper 1071 may be at least one. Optionally, the number of the second stopper 1072 may be at least two.

[0210] During vibration of the vibration transmitting plate 113, the movable distance of the region near the center of the vibration transmitting plate 113 (e.g., the central fixing portion 1131) is generally greater than the movable distance of the region farther from the center of the vibration transmitting plate 113. If the first and second stoppers 1071, 1072 are located at the same distance from the bone conduction speaker 11, but the extent of movement of different regions of the vibration transmitting plate 113 differs, the first and second stoppers 1071, 1072 may not simultaneously abut the vibration transmitting plate 113, thereby reducing the rigid restraint effect.

[0211] Optionally, the vibration transmitting plate 113 may be pre-deformed. That is, in its natural state, the connecting rod assembly 1133 has an extension component, originating from the annular fixing portion 1132 and directed toward the interior of the bone conduction speaker 11 along the central axis Z. The vibration transmitting plate 113 may be pre-deformed toward the interior of the bone conduction speaker 11 or toward the exterior of the bone conduction speaker 11. The natural state may refer to the state of the bone conduction speaker 11 after assembly, or when the bone conduction speaker 11 is not in operation, when the voice coil assembly 111 and the magnet assembly 112 are relatively stationary.

[0212] In the direction of the central axis Z, the distance d2 between the first stopper 1071 and the central fixing portion 1131 is greater than the distance d1 between the second stopper 1072 and the connecting rod assembly 1133. This increases the likelihood that the first stopper 1071 and the second stopper 1072 will simultaneously abut the vibration transmitting plate 113, facilitating the first and second stopper 1071 and 1072 to jointly exert a rigid constraint on the vibration transmitting plate 113. Furthermore, compared to the case where the distance d2 between the first stopper 1071 and the central fixing portion 1131 is equal to the distance d1 between the second stopper 1072 and the connecting rod assembly 1133, the distance d2 between the first stopper 1071 and the central fixing portion 1131 is greater than the distance d1 between the second stopper 1072 and the connecting rod assembly 1133. This provides sufficient vibration space for the vibration transmitting plate 113 during normal operation, thereby improving the sound quality of the earphone 100.

[0213] Of course, in their natural state, the second stopper 1072 and the connecting rod assembly 1133 can be spaced apart or in contact with each other. The connecting rod assembly 1133 is relatively weak in rigidity and easily stretched. The natural contact between the second stopper 1072 and the connecting rod assembly 1133 can further limit the vibration of the vibration transmitting plate 113 and better protect the connecting rod assembly 1133.

[0214] Optionally, the distance d2 between the first stopper 1071 and the central fixing portion 1131 is greater than or equal to 0.1 mm. This allows the first stopper 1071 to more sensitively contact the vibration transmission plate 113, thereby providing timely protection. In other words, the bone conduction speaker 11 can achieve good bone conduction while being less susceptible to damage from drops or collisions.

[0215] Considering that the distance d1 between the second stopper 1072 and the connecting rod assembly 1133 is smaller than the distance d2 between the first stopper 1071 and the central fixing portion 1131, if the second stopper 1072 is too close to the first stopper 1071 (central fixing portion 1131), the movable distance of the magnet assembly 112 (i.e., the relative motion range of the voice coil assembly 111 and the magnet assembly 112) may be excessively restricted. Alternatively, in the extension direction of the connecting rod assembly 1133, the abutment position of the second stopper 1072 and the connecting rod assembly 1133 is closer to the annular fixing portion 1132 than to the central fixing portion 1131. In this case, the vibration level of the central fixing portion 1131 can be maintained to a certain extent, thereby ensuring that the voice coil assembly 111 and the magnet assembly 112 of the bone conduction speaker 11 have a relatively large relative motion range within a reasonable range.

[0216] As previously described, the outer end surface 1103 of the second of the voice coil assembly 111 and magnet assembly 112 may include a central region 1104 and a peripheral region 1106 surrounding the central region 1104 (see Figures 7 and 8 ). Central region 1104 is provided with a raised portion 1105. Raised portion 1105 protrudes relative to peripheral region 1106. Central fixing portion 1131 is connected to raised portion 1105. This facilitates assembly of the second of the voice coil assembly 111 and magnet assembly 112 with central fixing portion 1131.

[0217] Taking the case where the outer end surface 1103 is located at the magnet assembly 112 as an example, the outer end surface 1103 may include a central area 1104 and a peripheral area 1106. A protrusion 1105 is provided on the outer end surface 1103 of the magnet assembly 112, and the protrusion 1105 is fixedly connected to the central fixing portion 1131 of the vibration transmitting plate 113. On the one hand, this can make the fixed connection area between the vibration transmitting plate 113 and the magnet assembly 112 smaller, reduce the restriction on the elastic deformation of the vibration transmitting plate 113, and improve the vibration effect while ensuring the elastic constraint effect. On the other hand, by not providing the protrusion 115 on the vibration transmitting plate 113, the vibration transmitting plate 113 can be kept at a certain weight as much as possible to reduce the impact on vibration, and at the same time, the magnet assembly 112 and the vibration transmitting plate 113 can be connected more reliably and stably.

[0218] Specifically, when the central fixing portion 1131 of the vibration transmission plate 113 is circular, the raised portion 1105 can also be cylindrical. The shape of the central region 1104 can be configured to match the shape of the central fixing portion 1131, so that a stable connection is formed between the central region 1104 as a whole and the central fixing portion 1131 of the vibration transmission plate 113.

[0219] Optionally, as shown in FIG17 , the housing assembly 10 includes a housing 101 and a housing 102 that mate with each other along the central axis direction Z. A stopper 107 is provided on the inner surface of the housing 101 and / or the housing 102. The outer surface of the housing 101 and / or the housing 102 contacts the user's skin. This structure facilitates assembly of the bone conduction speaker 11.

[0220] Optionally, the first of the voice coil assembly 111 and the magnet assembly 112 is disposed around the second of the voice coil assembly 111 and the magnet assembly 112. For example, the voice coil assembly 111 is disposed around the magnet assembly 112. The voice coil assembly 111 is rigidly connected to the housing 101 and / or the housing 102. Arranging the voice coil assembly 111 around the magnet assembly 112 facilitates miniaturization of the magnet assembly 112, thereby reducing the volume of the bone conduction speaker 11 and, consequently, the headphone 100. In other embodiments, the magnet assembly 112 may also be disposed outside the voice coil assembly 111.

[0221] Optionally, the shell 102 further presses and fixes the voice coil assembly 111 on the shell 101, so that the voice coil assembly 111 can be stably clamped between the shell 101 and the shell 102, thereby improving the fixing effect, thereby improving the effect of transmitting vibration to the shell assembly 10, and conveniently assembling the bone conduction speaker 11 in the shell assembly 10.

[0222] As shown in Figure 17, the movement assembly 1 may include a shell assembly 10 and a microphone assembly 13. The shell assembly 10 may be provided with a accommodating cavity 1001 (for the description of the accommodating cavity 1001, please refer to Figures 3, 4, etc. and the description of other relevant contents of this article). The microphone assembly 13 may be arranged in the accommodating cavity 1001. As shown in Figure 17, a sound input hole 1082 is provided on the shell assembly 10, and the microphone assembly 13 can be used to collect external sounds input through the sound input hole 1082. It is worth noting that the following description takes the electronic device as an earphone 100 as an example, and the improvement schemes such as the microphone assembly 13 and the matching structure of the microphone assembly 13 and the shell assembly 10 are applicable to other electronic devices, such as other devices with communication functions or sound collection functions, such as walkie-talkies, notebooks, conference equipment, mobile phones, tablet computers, smart wearable devices, etc.

[0223] Referring to Figures 25, 26 and 27, optionally, at least two sound inlet holes 1082 may be provided on the shell assembly 10. The sound inlet ends of the two sound inlet holes 1082 may be spaced apart from each other, and the sound outlet ends of the two sound inlet holes 1082 may be connected to each other. The sound inlet end of the sound inlet hole 1082 may refer to the end where external sound enters the sound inlet hole 1082, that is, the end connected to the outside world. The sound outlet end of the sound inlet hole 1082 may refer to the end where external sound flows out after passing through the sound inlet hole 1082, that is, the end extending into the shell assembly 10.

[0224] As shown in Figure 28, the microphone assembly 13 may include a support base 131 and a microphone 132. As shown in Figures 26 to 31, a sound guide channel 1311 may be provided on the support base 131. As shown in Figure 26, the sound input end of the sound guide channel 1311 is connected to the sound output ends of the two sound inlet holes 1082. The microphone 132 may be provided at the sound output end of the sound guide channel 1311. The sound input end of the sound guide channel 1311 may refer to the end where the external sound enters the sound guide channel 1311 after passing through the sound inlet hole 1082. The sound output end of the sound guide channel 1311 may refer to the end where the external sound flows out through the sound inlet hole 1082 and the sound guide channel 1311.

[0225] In this case, sound can enter the microphone assembly 13 in the accommodating cavity 1001 through the two sound inlet holes 1082, thereby improving the sound pickup effect of the microphone assembly 13. In addition, during the sound pickup process, a large airflow may enter the sound inlet holes 1082. The airflow can enter the housing assembly 10 through one of the sound inlet holes 1082 and flow out through the other sound inlet hole 1082, which can slow down the airflow speed and reduce the probability of the airflow passing through the sound guide channel 1311 and impacting the microphone 132, thereby reducing wind noise during sound pickup.

[0226] 27 , optionally, the sound guiding channel 1311 is arranged in a bent shape. In this case, the length of the sound guiding channel 1311 can be increased, the speed of the airflow can be slowed down, and the influence of wind noise can be reduced.

[0227] Optionally, the length of the sound-guiding channel 1311 is set to be greater than or equal to 3 mm and less than or equal to 20 mm. The length of the sound-guiding channel 1311 may refer to the length of the sound-guiding channel 1311 along its extension direction. In this case, the speed of the airflow can be slowed down and the volume of the support base 131 can be reasonably controlled.

[0228] Optionally, the support seat 131 can be fixedly disposed in the shell assembly 10. For example, the support seat 131 can be fixed in the shell assembly 10 by laser welding, ultrasonic welding, or the like. For example, the support seat 131 is fixed in the shell assembly 10 by laser welding, and can seal the gap between the support seat 131 and the shell assembly 10. Specifically, the gap around the sound inlet 1082 between the support seat 131 and the shell assembly 10 can be sealed by laser welding, so that the airflow entering through the sound inlet 1082 cannot enter the accommodating cavity 1001 through the support seat 131 and the shell assembly 10. For example, the support seat 131 can be transparent, so that the contact or fixed position of the support seat 131 and the shell assembly 10 can be clearly observed during laser welding, thereby improving the welding efficiency. When sealing is required, the path of the laser welding can be clearly known, thereby effectively ensuring the sealing performance. Of course, the housing assembly 10 and the support base 131 can also be fixed by laser welding, and further sealed by a sealing rubber ring or sealant to the housing assembly 10 or the support base 131. The sealing of the housing assembly 10 and the support base 131 by the sealing rubber ring (which can be called a sealing ring) or sealant can be seen in the following description.

[0229] 28, 29, and 30, the housing assembly 10 may optionally be provided with a support surface 1083 and abutment surface 1084. The support base 131 may include a bottom surface 1312 and a top surface 1313 disposed opposite each other, and at least two side surfaces 1314 connected between the bottom surface 1312 and the top surface 1313. The bottom surface 1312 of the support base 131 may be supported on the support surface 1083. A predetermined side surface 1314a of the at least two side surfaces 1314 may be in contact with the abutment surface 1084.

[0230] Optionally, as shown in Figures 26 to 28, the sound outlet end of the sound inlet hole 1082 can be located on the abutment surface 1084. The sound inlet end of the sound guiding channel 1311 can be located on the predetermined side surface 1314a. The sound outlet end of the sound guiding channel 1311 can be located on the top surface 1313. The sound guiding channel 1311 can be configured to extend obliquely from the predetermined side surface 1314a to the bottom surface 1312, and then further extend obliquely to the top surface 1313. Generally, the wall thickness of the shell assembly 10 is generally thin, so it is difficult to open a longer sound guiding channel 1311 on the shell assembly 10. The sound guiding channel 1311 is opened on the support seat 131, which is conducive to increasing the length of the sound guiding channel 1311. Moreover, the sound inlet end and the sound outlet end of the sound guiding channel 1311 are oriented in different directions, which is conducive to slowing down the speed of the airflow, thereby reducing the impact of wind noise. In addition, in order to effectively slow down the speed of the airflow in the sound guiding channel 1311, the structure of the sound guiding channel 1311 may be more complicated, which will also increase the difficulty of processing the shell assembly 10. The sound inlet 1082 is opened in the shell assembly 10, and the sound guiding channel 1311 is opened in the support seat 131, which is conducive to reducing the processing difficulty of the shell assembly 10 and the support seat 131.

[0231] As shown in Figures 28 and 30, two first adhesive-containing grooves 1301 spaced apart from each other are optionally provided on the abutment surface 1084 and / or the predetermined side surface 1314a. The two first adhesive-containing grooves 1301 can connect the top surface 1313 and the bottom surface 1312 of the support base 131. The sound output end of the sound inlet hole 1082 and the sound input end of the sound guide channel 1311 can be located between the two first adhesive-containing grooves 1301.

[0232] Referring to Figure 29, the earphone 100 optionally further includes a first sealant 1303, a second sealant 1304, and a third sealant 1305. The first sealant 1303 can seal the two first sealant grooves 1301. The second sealant 1304 can seal at least the gap between the top surface 1313 located between the two first sealant grooves 1301 and the abutting surface 1084. The third sealant 1305 can seal the gap between the side surfaces 1314 other than the predetermined side surface 1314a and the supporting surface 1083.

[0233] Sealing the two first glue containing grooves 1301 with the first sealant 1303 can reduce the possibility of water vapor in the sound inlet 1082 and the sound guiding channel 1311 entering the interior of the shell assembly 10 from between the predetermined side 1314a and the abutment surface 1084 and from a direction perpendicular to the first glue containing groove 1301.

[0234] When the gap between the top surface 1313 and the abutment surface 1084 between the two first glue containing grooves 1301 is sealed by the second sealant 1304, the possibility of water vapor entering the interior of the shell assembly 10 from between the predetermined side surface 1314a and the abutment surface 1084 and along the direction of the first glue containing groove 1301 can be reduced.

[0235] When the gap between the side surfaces 1314 other than the predetermined side surface 1314a and the support surface 1083 is sealed by the third sealant 1305, the possibility of water vapor entering the interior of the shell assembly 10 from between the support surface 1083 and the bottom surface 1312 of the support seat 131 can be reduced.

[0236] That is to say, the first sealant 1303, the second sealant 1304, and the third sealant 1305 can isolate the interior of the shell assembly 20 and the sound inlet hole 1082 / sound guiding channel 1311, so as to reduce the possibility of water vapor in the sound inlet hole 1082 / sound guiding channel 1311 entering the interior of the shell assembly 20 and causing the electronic components inside the shell assembly 20 (such as the microphone 132) to get damp.

[0237] Optionally, the connection between the predetermined side surface 1314a and the top surface 1313 is set in a chamfered shape (see Figures 28 and 30), and then cooperates with the abutment surface 1084 to form a second glue containing groove 1302. The second glue containing groove 1302 connects the two first glue containing grooves 1301. The second sealant 1304 seals the second glue containing groove 1302. In this case, the second glue containing groove 1302 can conveniently and stably store the second sealant 1304, so that the second sealant 1304 can play a sealing role more stably. Specifically, the connection between the predetermined side surface 1314a and the top surface 1313 can be chamfered (for example, a chamfered angle, a fillet or an L-shaped cut angle, etc.) so that the connection between the predetermined side surface 1314a and the top surface 1313 is set in a chamfered shape.

[0238] In other examples, the connection between the predetermined side surface 1314a and the top surface 1313 may also be arranged in a stepped shape.

[0239] Optionally, referring to Figures 28 to 30, the housing assembly 10 further includes a rib 1051 disposed on the periphery of the other side surface 1314 and protruding from the support surface 1083. The rib 1051 and the other side surface 1314 can cooperate to form a third glue-receiving groove 1052. The third sealant 1305 can seal the third glue-receiving groove 1052. In this case, the third glue-receiving groove 1052 can conveniently and stably store the third sealant 1305, so that the third sealant 1305 can perform a relatively stable sealing function.

[0240] Optionally, the support surface 1083 and the abutment surface 1084 may be located on the housing 101. In addition, referring to FIG31 , a support flange 1015 may be further provided on the housing 101. The support flange 1015 may be used to support the housing 102.

[0241] Optionally, referring to Figures 31 to 35 , a notch 1016 is provided on the support flange 1015. On the side near the abutment surface 1084, a portion of the support seat 131 is embedded in the notch 1016 and, together with the support flange 1015, supports the housing 102. In this case, when the housing 102 is assembled to the housing 101, the notch 1016 of the housing 101 forms a space for securing the support seat 131, thereby securing the support seat 131.

[0242] Optionally, as shown in Figures 31 and 32 , the housing 101 is further provided with a first adhesive-bearing surface 1017 connected to the abutment surface 1084. Referring to Figures 33 and 34 , the first adhesive-bearing surface 1017 may be disposed intersectingly with the abutment surface 1084. The support seat 131 may also be provided with a second adhesive-bearing surface 1315 connected to the predetermined side surface 1314a. The second adhesive-bearing surface 1315 may be disposed intersectingly with the predetermined side surface 1314a. The first adhesive-bearing surface 1017 and the second adhesive-bearing surface 1315 may at least partially overlap.

[0243] Specifically, the first adhesive surface 1017 can be perpendicular to the abutting surface 1084, or the first adhesive surface 1017 can be inclined relative to the abutting surface 1084. The second adhesive surface 1315 can be perpendicular to the predetermined side surface 1314a, or the second adhesive surface 1315 can be inclined relative to the predetermined side surface 1314a.

[0244] Referring to Figure 32, the abutment surface 1084 may include a first abutment surface 1084a and a second abutment surface 1084b. The first abutment surface 1084a and the second abutment surface 1084b may not be coplanar. For example, the first abutment surface 1084a may be parallel to the second abutment surface 1084b. The first abutment surface 1084a may be closer to the outside of the housing assembly 10 than the second abutment surface 1084b, that is, it may be arranged in a direction further away from the support seat 131. The first adhesive surface 1017 may connect the first abutment surface 1084a and the second abutment surface 1084b, and the three may be arranged in a stepped shape. The upper side of the first adhesive surface 1017 may form the notch 1016 of the housing 101.

[0245] Correspondingly, the predetermined side surface 1314a may include a first predetermined side surface 1314b and a second predetermined side surface 1314c. The first predetermined side surface 1314b and the second predetermined side surface 1314c may not be coplanar. For example, the first predetermined side surface 1314b may be parallel to the second predetermined side surface 1314c. The first predetermined side surface 1314b may protrude from the second predetermined side surface 1314c. The second adhesive-bearing surface 1315 may connect the first predetermined side surface 1314b and the second predetermined side surface 1314c. The three may be arranged in a stepped manner, thereby conforming to the stepped structure formed by the aforementioned abutment surface 1084 and the first adhesive-bearing surface 1017.

[0246] When the support seat 131 is partially embedded in the notch 1016, the first predetermined side surface 1314b can at least partially overlap with the first abutting surface 1084a, the first adhesive surface 1017 can at least partially overlap with the second adhesive surface 1315, and the second predetermined side surface 1314c can at least partially overlap with the second abutting surface 1084b. The overlap described herein can refer to the two overlapping surfaces (for example, the first predetermined side surface 1314b and the first abutting surface 1084a) being able to fit together, or facing each other with a gap between them. Of course, even if the first predetermined side surface 1314b and the first abutting surface 1084a fit together, there may still be a gap between the first predetermined side surface 1314b and the first abutting surface 1084a that allows water vapor to pass through.

[0247] Referring to Figure 36 , the earphone 100 optionally further includes a fourth sealant 1306. The fourth sealant 1306 can seal the gap between the first adhesive surface 1017 and the second adhesive surface 1315. In this case, when the fourth sealant 1306 seals the gap between the first adhesive surface 1017 and the second adhesive surface 1315, it can reduce the possibility of moisture from the sound inlet 1082 and the sound guide channel 1311 entering between the predetermined side surface 1314a and the abutment surface 1084, and then entering the interior of the housing assembly 10.

[0248] Referring to Figure 37, optionally, the support surface 1083 includes a third adhesive surface 1018. The bottom surface 1312 includes a fourth adhesive surface 1316. The third adhesive surface 1018 and the fourth adhesive surface 1316 are arranged to at least partially overlap. The electronic device may further include a fifth sealant 1307. The fifth sealant 1307 can seal the gap between the third adhesive surface 1018 and the fourth adhesive surface 1316. In this case, when the fifth sealant 1307 seals the gap between the third adhesive surface 1018 and the fourth adhesive surface 1316, the possibility of water vapor entering the interior of the housing assembly 10 through the gap between the support surface 1083 of the housing 101 and the bottom surface 1312 of the support seat 131 can be reduced.

[0249] 38 and 39 , optionally, the earphone 100 further includes a sealing ring 133. The sealing ring 133 may be an annular seal. In some embodiments, the sealing ring 133 may be an annular elastic structural member. When the support seat 131 is fixed in the shell 10, the sealing ring 133 is elastically clamped between the abutment surface 1084 and the predetermined side surface 1314a. The sealing ring 133 surrounds the sound output end of the sound inlet 1082 and the sound input end of the sound guide channel 1311. In this case, the sealing ring 133 can reduce the possibility of water vapor from the sound inlet 1082 and the sound guide channel 1311 entering the interior of the shell assembly 10 from between the predetermined side surface 1314a and the abutment surface 1084. In some embodiments of the present application, the sealing ring 133 may be a rubber ring, a silicone ring, foam, etc. It is understandable that in some other embodiments of the present application, the sealing ring 133 can also be a ring structure formed by fixing with glue, that is, the glue is bonded between the abutment surface 1084 and the predetermined side surface 1314a, and surrounds the sound output end of the sound inlet 1082 and the periphery of the sound input end of the sound guide channel 1311, thereby achieving the fixation of the support seat 131 in the shell 10, and reducing the possibility of water vapor in the sound inlet 1082 and the sound guide channel 1311 entering the interior of the shell assembly 10 from between the predetermined side surface 1314a and the abutment surface 1084.

[0250] Optionally, as shown in FIG39 , the abutment surface 1084 is provided with a recessed area 1308 surrounding the sound outlet end of the sound inlet hole 1082. The sealing ring 133 is at least partially disposed within the recessed area 1308. Alternatively, the predetermined side surface 1314a is provided with a recessed area 1308 surrounding the sound inlet end of the sound guide channel 1311, and the sealing ring 133 is at least partially disposed within the recessed area 1308. This arrangement not only facilitates the positioning and securing of the sealing ring 133, but also further enhances the sealing effect of the sealing ring 133 in conjunction with the recessed area 1308.

[0251] Optionally, as shown in FIG28 , top surface 1313 is provided with a positioning groove 1317. The sound outlet end of sound guide channel 1311 is located within positioning groove 1317. Microphone 132 is positioned within positioning groove 1317. In this case, microphone 132 can be reliably and accurately supported on the support base, facilitating microphone 132 to collect sound entering through sound guide channel 1311.

[0252] Optionally, the foregoing content has mentioned that the electronic device is an earphone 100 as an example, and the wearing component 27 can be connected to the shell component 10. In the wearing state, the wearing component 27 is hung on the user's ear to position the shell component 10 to contact the user's face.

[0253] Optionally, the sound inlet end of the sound inlet 1082 is located on the side of the shell assembly 10 toward the top of the user's head along the vertical axis of the user, and is blocked by the shell assembly 10 or the wearing assembly 27 along the sagittal axis of the user. That is, the sound inlet end of the sound inlet 1082 can be located on the upper rear side of the shell assembly 10. In this case, the sound inlet end of the sound inlet 1082 can be opened in a relatively hidden area of ​​the shell assembly 10 and blocked by the shell assembly 10 or the wearing assembly 27, thereby increasing the difficulty of external airflow entering the sound inlet 1082, thereby reducing wind noise.

[0254] It should be noted that in fields such as medicine and anatomy, the human body can be defined as three basic planes: the sagittal plane, the coronal plane, and the horizontal plane, as well as three basic axes: the sagittal axis, the coronal axis, and the vertical axis. The sagittal plane refers to a plane perpendicular to the ground, along the anterior-posterior direction of the body, dividing the body into left and right halves. The coronal plane refers to a plane perpendicular to the ground, along the lateral direction of the body, dividing the body into anterior-posterior halves. The horizontal plane refers to a plane parallel to the ground, along the lateral direction of the body, dividing the body into upper and lower halves. Accordingly, the sagittal axis refers to the axis along the lateral direction of the body and perpendicular to the coronal plane; the coronal axis refers to the axis along the lateral direction of the body and perpendicular to the sagittal plane; and the vertical axis refers to the axis along the lateral direction of the body and perpendicular to the horizontal plane.

[0255] For users, they move forward in most scenarios, which means that when wearing the earphones 100, the airflow mainly comes from the front of the user (earphones 100). Therefore, by setting the sound input end at the rear of the shell assembly 10, most of the airflow from the front of the user can be blocked by the shell assembly 10, and it is not easy to enter the sound input hole 1082. In addition, the auricle of the ear may have a sound-gathering effect, which reduces the quality of the sound collected by the microphone 132. Therefore, setting the sound input end above the shell assembly 10, for example, on the side of the shell assembly 10 close to the wearing assembly 27 (the seam between the wearing assembly 27 and the shell assembly 10 is located above the shell assembly 10), can reduce the influence of the sound-gathering effect of the auricle.

[0256] Optionally, as shown in Figure 17, the shell 101 can be provided with a first matching part 1019. The wearing component 27 is provided with a second matching part 275. The first matching part 1019 is matched and connected with the second matching part 275. The sound inlet 1082 is provided on the shell 101. The first matching part 1019 and / or the second matching part 275 protrude from the sound inlet end of the sound inlet 1082 along the vertical axis. The sound inlet end of the sound inlet 1082 is located along the sagittal axis on the side of the first matching part 1019 and / or the second matching part 275 toward the back of the human brain. In this case, when the user wears the earphones 100, the shell assembly 10 can be used to block the airflow from the front of the user from entering the sound inlet 1082.

[0257] Optionally, the spacing distance between the sound inlet end of the sound inlet hole 1082 and the first matching portion 1019 and / or the second matching portion 275 along the sagittal axis is less than or equal to half of the maximum dimension of the housing 101 along the sagittal axis.

[0258] Optionally, the distance between the sound inlet end of the sound inlet hole 1082 and the first matching portion 1019 and / or the second matching portion 275 along the sagittal axis is less than or equal to 5 mm.

[0259] Optionally, the sound inlet ends of the two sound inlet holes 1082 are spaced apart along the sagittal axis.

[0260] Optionally, a ratio of a distance between the sound inlet ends of the two sound inlet holes 1082 and an aperture of the two sound inlet holes 1082 is between 0.5 and 3.

[0261] Optionally, along the sagittal axis, the sound-guiding channel 1311 further extends forward toward the user. In this case, the curvature of the sound-guiding channel 1311 can be further increased, thereby slowing the flow of air through the sound-guiding channel 1311. Furthermore, the extension of the sound-guiding channel 1311 in all directions can increase the length of the sound-guiding channel 1311 while maintaining a relatively small support base 131.

[0262] Optionally, as shown in FIG40 , the electronic device (e.g., earphone 100 ) may further include a tuning mesh assembly 134 . The tuning mesh assembly 134 may be located before the microphone 132 in the sound pickup path from the sound inlet 1082 to the microphone 132 . This allows for more uniform sound entering the microphone 132 . Furthermore, the tuning mesh assembly 134 can reduce airflow velocity and vortexes generated by the airflow, effectively reducing wind noise and improving the purity of the picked-up sound signal. The tuning mesh assembly 134 may include at least two tuning elements 1341 and 1342 . In order to achieve the above-mentioned good tuning effect, each tuning element 1341 (1342) can be set in at least the following locations: (1) between the shell assembly 10 and the support base 131, specifically between the sound input end of the sound guide channel 1311 and the sound output ends of the two sound inlet holes 1082; (2) in front of the sound input end of the sound inlet hole 1082, specifically in front of the sound input end of the sound inlet hole 1082 away from its sound output end; (3) between the support base 131 and the microphone 132, specifically between the sound output end of the sound guide channel 1311 and the microphone 132; (4) within the sound guide channel 1311. (5) within the sound inlet hole 1082, specifically at the sound input end or the sound output end of the sound inlet hole 1082. At least two tuning elements 1341 can be set in the same above-mentioned location, or they can be set in different above-mentioned locations.

[0263] Regarding the fact that the tuning elements 1341 (1342) of the tuning mesh assembly 134 are arranged at the same aforementioned position, in some embodiments, the tuning mesh assembly 134 can be arranged at the aforementioned position (4), that is, arranged within the sound guide channel 1311. In some embodiments, the tuning mesh assembly 134 can be arranged at the aforementioned position (1), that is, arranged between the shell assembly 10 and the support base 131. In some embodiments, the tuning mesh assembly 134 can be arranged at the aforementioned position (2), that is, arranged before the sound input end of the sound input hole 1082. In some embodiments, the tuning mesh assembly 134 can be arranged at the aforementioned position (3), that is, between the support base 131 and the microphone 132. In some embodiments, the tuning mesh assembly 134 can be arranged at the aforementioned position (5), that is, arranged at the sound input hole 1082.

[0264] With respect to the at least two tuning elements 1341 and 1342 of the tuning mesh assembly 134 being arranged at different aforementioned positions, in some embodiments, one tuning element 1341 (1342) can be arranged at the aforementioned position (4), i.e., arranged inside the sound guide channel 1311, while the other tuning element 1341 (1342) can be arranged outside the sound guide channel 1311. For example, at least two tuning elements 1341 and 1342 are both arranged outside the sound guide channel 1311, but at different aforementioned positions. For being arranged outside the sound guide channel 1311, such as the aforementioned position (1), i.e., being arranged between the shell assembly 10 and the support base 131, such as the aforementioned position (2), i.e., being arranged before the sound input end of the sound input hole 1082, such as the aforementioned position (3), i.e., being arranged between the support base 131 and the microphone 132.

[0265] For example, a steel mesh can be used as a tuning element 1341, and a gauze mesh can be used as another tuning element 1342. In the tuning mesh assembly 134, the number of steel meshes 1341 and gauze meshes 1342 can be at least one respectively, and the specific numbers can be the same or different. At least one steel mesh 1341 and at least one gauze mesh 1342 can be stacked and arranged at the same above-mentioned position. Optionally, in the direction from outside to inside of the shell assembly 10, the stacking order of at least one steel mesh 1341 and at least one gauze mesh 1342 can be not limited, and can also be separated from each other and arranged at different above-mentioned positions.

[0266] Regarding the above-mentioned positions, FIG40 only shows that the tuning mesh assembly 134 is set at the above-mentioned position (1), that is, it is set between the housing assembly 10 and the support base 131. Other embodiments are not shown in the figure. The setting position of the tuning mesh assembly 134 can be clearly understood by referring to FIG40, FIG29, etc. and the description of the above-mentioned embodiments. The drawings of other embodiments are not shown here.

[0267] The above descriptions are only some embodiments of the present application and do not limit the scope of protection of the present application. Any equivalent device or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. An electronic device, characterized in that: The electronic device comprises: A shell component, wherein the shell component is provided with a containing cavity, and the shell component is provided with two sound inlet holes; A microphone assembly is disposed in the accommodating cavity, and the microphone assembly is used to collect external sound input through the sound inlet hole; The sound input ends of the two sound input holes are spaced apart from each other, and the sound output ends of the two sound input holes are connected to each other. The microphone assembly includes a support base and a microphone. A sound guiding channel is provided on the support base. The sound input end of the sound guiding channel is connected to the sound output ends of the two sound input holes. The microphone is provided at the sound output end of the sound guiding channel.

2. The electronic device according to claim 1, characterized in that: The sound guiding channel is arranged in a bent shape.

3. The electronic device according to claim 2, characterized in that: The length of the sound guiding channel is set to be greater than or equal to 3 mm and less than or equal to 20 mm.

4. The electronic device according to claim 1, characterized in that: The shell assembly is provided with a supporting surface and a resting surface, the sound outlet end of the sound inlet hole is located on the resting surface, the support seat is provided with a bottom surface and a top surface arranged back to back to each other and at least two side surfaces connected between the bottom surface and the top surface, the bottom surface of the support seat is supported on the supporting surface, a predetermined side surface of the at least two side surfaces rests on the resting surface, the sound inlet end of the sound guiding channel is located on the predetermined side surface, the sound outlet end of the sound guiding channel is located on the top surface, and the sound guiding channel is arranged to extend obliquely from the predetermined side surface to the bottom surface, and then further extend obliquely to the top surface.

5. The electronic device according to claim 4, characterized in that: Two first glue containing grooves spaced apart from each other are arranged on the abutting surface and / or the predetermined side surface, the two first glue containing grooves connect the top surface and the bottom surface of the support seat, the sound outlet end of the sound input hole and the sound input end of the sound guiding channel are located between the two first glue containing grooves, the electronic device further includes a first sealant, a second sealant and a third sealant, the first sealant seals the two first glue containing grooves, the second sealant at least seals the gap between the top surface between the two first glue containing grooves and the abutting surface, and the third sealant seals the gap between other side surfaces other than the predetermined side surfaces and the support surface.

6. The electronic device according to claim 5, characterized in that: The connection between the predetermined side surface and the top surface is arranged in a cut-angle shape, and then cooperates with the abutting surface to form a second glue containing groove, the second glue containing groove connects the two first glue containing grooves, and the second sealant seals the second glue containing groove.

7. The electronic device according to claim 6, characterized in that: The shell assembly further includes a convex rib arranged on the periphery of the other side surface and protruding from the supporting surface, the convex rib cooperates with the other side surface to form a third glue containing groove, and the third sealant seals the third glue containing groove.

8. The electronic device according to claim 4, characterized in that: The shell assembly includes a first shell and a second shell, the supporting surface and the abutting surface are located on the first shell, and a supporting flange is also provided on the first shell, and the supporting flange is used to support the second shell. A notch is provided on the supporting flange, and a portion of the support seat is embedded in the notch on the side close to the abutting surface, and supports the second shell together with the supporting flange.

9. The electronic device according to claim 8, characterized in that: The first shell is also provided with a first adhesive-bearing surface connected to the abutting surface, and the first adhesive-bearing surface is cross-arranged with the abutting surface. The support seat is also provided with a second adhesive-bearing surface connected to the predetermined side surface, and the second adhesive-bearing surface is cross-arranged with the predetermined side surface. The first adhesive-bearing surface and the second adhesive-bearing surface are at least partially overlapped. The electronic device further includes a fourth sealant, and the fourth sealant seals the gap between the first adhesive-bearing surface and the second adhesive-bearing surface.

10. The electronic device according to claim 9, characterized in that: The supporting surface includes a third adhesive bearing surface, the bottom surface includes a fourth adhesive bearing surface, the third adhesive bearing surface and the fourth adhesive bearing surface are at least partially overlapped, and the electronic device further includes a fifth sealant, and the fifth sealant seals the gap between the third adhesive bearing surface and the fourth adhesive bearing surface.

11. The electronic device according to claim 4, characterized in that: The electronic device further comprises a sealing ring, which is elastically clamped between the abutting surface and the predetermined side surface, and the sealing ring is arranged around the sound outlet end of the sound inlet hole and the periphery of the sound inlet end of the sound guide channel.

12. The electronic device according to claim 11, characterized in that: The abutting surface is provided with a recessed area surrounding the sound outlet end of the sound inlet hole, and the sealing ring is arranged in the recessed area; or The predetermined side surface is provided with a recessed area surrounding the sound inlet end of the sound guiding channel, and the sealing ring is arranged in the recessed area.

13. The electronic device according to claim 4, characterized in that: The top surface is provided with a positioning groove, the sound outlet end of the sound guiding channel is located in the positioning groove, and the microphone is positioned in the positioning groove.

14. The electronic device according to any one of claims 1 to 13, characterized in that: The electronic device is a headset and includes a wearing component, which is connected to the shell component. In the wearing state, the wearing component is hung on the ear of the user to position the shell component to contact the face of the user. The sound input end of the sound input hole is located on the side of the shell component toward the top of the user's head along the vertical axis of the user, and is blocked by the shell component or the wearing component along the sagittal axis of the user.

15. The electronic device according to claim 14, characterized in that: The shell component includes a first shell, the first shell is provided with a first matching part, the wearing component is provided with a second matching part, the first matching part is matched and connected with the second matching part, the sound input hole is provided on the first shell, the first matching part and / or the second matching part protrudes from the sound input end of the sound input hole along the vertical axis, and the sound input end of the sound input hole is located on the first matching part and / or the second matching part toward the back of the human brain along the sagittal axis.

16. The electronic device according to claim 15, characterized in that: A spacing distance between a sound inlet end of the sound inlet hole and the first matching portion and / or the second matching portion along the sagittal axis is less than or equal to half of a maximum dimension of the first shell along the sagittal axis.

17. The electronic device according to claim 15, characterized in that: The distance between the sound inlet end of the sound inlet hole and the first matching part and / or the second matching part along the sagittal axis is less than or equal to 5 mm.

18. The electronic device according to claim 15, characterized in that: The sound inlet ends of the two sound inlet holes are arranged at intervals along the sagittal axis.

19. The electronic device according to claim 15, characterized in that: The ratio of the distance between the sound inlet ends of the two sound inlet holes and the apertures of the two sound inlet holes is between 0.5 and 3.

20. The electronic device according to claim 15, characterized in that: On the sagittal axis, the sound guiding channel further has an extension component toward the front of the user.

21. The electronic device according to claim 1, characterized in that: The support seat and the shell assembly are fixed by laser welding.

22. The electronic device according to claim 1, characterized in that: The electronic device includes a tuning mesh assembly, which is located in front of the microphone on the sound pickup path from the sound inlet to the microphone; the tuning mesh assembly includes at least two tuning elements, each of which is arranged between the shell assembly and the support seat, or arranged in front of the sound input end of the sound inlet, or arranged between the support seat and the microphone, or arranged in the sound guide channel, or arranged in the sound inlet.

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