Diaphragm, air conduction speaker, and wearable electronic device

Abstract

The present application mainly relates to a diaphragm, an air conduction speaker, and a wearable electronic device. The diaphragm comprises: a center main body and a corrugated ring; the corrugated ring is connected to the outer periphery of the center main body; the corrugated ring comprises two arc-shaped sections and two connection sections; the two arc-shaped sections are spaced apart from and opposite to each other; the two connection sections are spaced apart from each other side by side, and are connected between two pairs of opposite ends of the two arc-shaped sections in a one-to-one correspondence, wherein a plurality of corrugated grooves arranged at intervals in the direction of extension of the arc-shaped sections are formed in each arc-shaped section; two ends of each first corrugated groove respectively extend toward an inner ring and an outer ring of the corrugated ring; and the plurality of corrugated grooves are arranged radially in a same spiral orientation. In this way, the working stability and the service life of the diaphragm can be effectively improved, thereby prolonging the service life of the wearable electronic device.

Description

Diaphragms, air conduction speakers, and wearable electronic devices

Technical field

[0001] The present application relates to the technical field of sound-producing instruments, and in particular to a diaphragm, an air conduction loudspeaker, and a wearable electronic device. [Background Technology]

[0002] With the increasing popularity of wearable 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. Wearable electronic devices such as headphones and smart glasses have also been widely used in people's daily lives. They can be used in conjunction with terminal devices such as mobile phones and computers to provide users with an auditory feast. Therefore, how to improve the operating life of wearable electronic devices such as headphones is currently a pressing issue that needs to be addressed.

[0003] [Summary of the invention]

[0004] The present application provides a diaphragm, which includes: a central body and a folding ring; the folding ring is connected to the outer periphery of the central body; the folding ring includes two arc-shaped segments and two connecting segments, and the two arc-shaped segments are spaced apart and arranged opposite to each other; the two connecting segments are spaced apart side by side and connected one-to-one between two pairs of opposite ends of the two arc-shaped segments; wherein each arc-shaped segment is provided with a plurality of first pattern grooves spaced apart from each other along the extension direction of the arc-shaped segment, and the two ends of each first pattern groove extend toward the inner ring and the outer ring of the folding ring respectively, and the plurality of first pattern grooves are radially arranged along the same rotation direction.

[0005] In some embodiments, the depth of the first tread groove gradually decreases toward its two ends, and the width of the first tread groove gradually decreases toward its two ends.

[0006] In some embodiments, the maximum depth of the first tread groove is 0.06 mm to 0.1 mm, and the maximum groove width of the first tread groove is 0.14 mm to 0.18 mm.

[0007] In some embodiments, a ratio of the depth of the first groove at any position to the groove width is 0.5-4.

[0008] In some embodiments, the groove wall of the first pattern groove includes an arcuate bottom wall and two side walls arranged opposite to each other. The arcuate bottom wall is connected between the two side walls and is arranged in an arc-shaped recessed direction away from the groove opening of the first pattern groove. The arcuate bottom wall and the two side walls are smoothly connected.

[0009] In some embodiments, the angle between the two side walls is 50° to 120°, or 60° to 100°.

[0010] In some embodiments, the folding ring includes an inner ring folding edge, an outer ring folding edge, and an annular arc portion connected between the inner ring folding edge and the outer ring folding edge, the annular arc portion is connected between the inner ring folding edge and the outer ring folding edge, and the inner ring folding edge is connected to the central body; a plurality of first pattern grooves are opened in the annular arc portion, and are located at positions of the annular arc portion corresponding to the arc segments; wherein the first pattern groove has a first end close to the inner ring folding edge and a second end close to the outer ring folding edge, and the distance between the first end and the inner ring folding edge is smaller than the distance between the second end and the outer ring folding edge.

[0011] In some embodiments, the folding ring has a major axis direction and a minor axis direction that are perpendicular to each other, and the two connecting segments extend along the major axis direction and are arranged at intervals along the minor axis direction; on a reference plane defined by the major axis direction and the minor axis direction, the first tread groove has a first projection, and the inner edge of the folding ring has a second projection; the extension line of the first projection and the second projection have an intersection on the reference plane; at the intersection, the angle between the extension line of the first projection and the tangent of the second projection is ≥30° and less than 90°.

[0012] In some embodiments, the angle corresponding to the first tread groove gradually decreases from the middle to the two ends of the arc segment; wherein, the angle corresponding to the first tread groove closer to the middle of the arc segment is larger, and the angle corresponding to the first tread groove closer to the two ends of the arc segment is smaller.

[0013] In some embodiments, the plurality of first grooves of the two arc-shaped segments have the same rotation direction.

[0014] In some embodiments, at least one of the two connecting segments is provided with a plurality of second tread grooves spaced apart from each other, and two ends of each second tread groove extend toward the inner ring and the outer ring of the folded ring, respectively.

[0015] In some embodiments, the folding ring has a major axis direction and a minor axis direction that are perpendicular to each other, the two connecting segments extend along the major axis direction, and are arranged at intervals along the minor axis direction; the angle between the extension direction of the projection of the second pattern groove on the reference plane defined by the major axis direction and the minor axis direction and the minor axis direction is less than 5°.

[0016] In some embodiments, multiple second tread grooves are divided into at least two groups; in each group of second tread grooves, there is a first spacing distance between two adjacent second tread grooves; there is a second spacing distance between two adjacent groups of second tread grooves, and the first spacing distance is smaller than the second spacing distance; there is a third spacing distance between the second tread grooves closest to each other and the first tread groove, and the first spacing distance is smaller than the third spacing distance.

[0017] The present application provides an air conduction loudspeaker comprising: a magnet assembly, a basket, a diaphragm, and a voice coil. The magnet assembly is provided with a magnetic gap extending along a preset vibration direction; the basket is fixedly disposed around the periphery of the magnet assembly; the outer periphery of the diaphragm is fixed to the basket and disposed opposite the magnet assembly; one end of the voice coil is fixedly connected to the diaphragm, and the other end extends into the magnetic gap; the diaphragm has a connection position connected to one end of the voice coil on its lower surface facing the magnet assembly; the magnet assembly has a top surface facing the diaphragm in the preset vibration direction; the diaphragm has a longest dimension in a direction perpendicular to the preset vibration direction; in a natural static state, a first spacing dimension is defined between the connection position and the top surface in the preset vibration direction; and the ratio of the first spacing dimension to the longest dimension is 0.2 to 0.1.

[0018] In some embodiments, the diaphragm is arranged in a racetrack shape, having a long axis direction and a short axis direction perpendicular to each other; the diaphragm has its longest dimension along the long axis direction.

[0019] In some embodiments, the magnetic gap is arranged in a ring shape, the magnet assembly includes a middle portion surrounded by the magnetic gap, and the top surface is an upper surface of the middle portion facing the diaphragm.

[0020] In some embodiments, the magnet assembly includes a magnetic cover, a magnet, and a magnetic plate. The magnetic cover is fixedly connected to the basin frame, the magnetic cover surrounds the magnet and the magnetic plate, the magnetic plate and the magnet are stacked, and the magnetic plate is closer to the diaphragm than the magnet. The magnet and the magnetic plate serve as the middle part, and the top surface is the upper surface of the magnetic plate facing the diaphragm.

[0021] In some embodiments, in a natural static state, a second spacing dimension is formed between the other end of the voice coil extending to the magnetic gap and the top surface in a preset vibration direction, and a ratio of the second spacing distance to the first spacing distance is 0.85 to 1.66.

[0022] In some embodiments, the magnetic gap has a gap bottom surface away from the connection position; in a natural static state, the connection position and the gap bottom surface have a third spacing dimension in a preset vibration direction, and the ratio of the third spacing dimension to the longest dimension is 0.15 to 0.4.

[0023] In some embodiments, the diaphragm includes a folded ring and a central body, the folded ring includes an inner ring folded edge and an outer ring folded edge, the outer ring folded edge surrounds the inner ring folded edge; the outer ring folded edge is relatively fixed to the basin frame; the central body includes a main body and an annular connecting edge connected to the outer periphery of the main body; wherein the inner ring folded edge and the annular connecting edge are stacked and connected; the connection position is located on the lower surface of the inner ring folded edge and the annular connecting edge that is closer to the voice coil and faces the voice coil; the angle between the lower surface where the connection position is located and the preset vibration direction is ≥80° and ≤90°.

[0024] In some embodiments, the annular connecting edge includes a first sub-connecting edge and a second sub-connecting edge, the first sub-connecting edge is connected to the main body in a circumferential manner, and the second sub-connecting edge is connected to the first sub-connecting edge in a circumferential manner; the inner ring fold is stacked on the second sub-connecting edge, and the connection position is located on the lower surface of the second sub-connecting edge facing the voice coil; the first sub-connecting edge and the second sub-connecting edge are connected at an angle, and the angle between the two is ≥145° and ≤180°; and / or, in a natural static state, the outer edge of the first sub-connecting edge connected to the second sub-connecting edge is closer to the magnet assembly in the vibration direction than the inner edge of the connected main body.

[0025] In some embodiments, the annular connecting edge is bent and connected to the main body, and the main body is arched in a direction away from the magnet assembly; the orthographic projection of the bent connection between the annular connecting edge and the main body on a reference plane perpendicular to the preset vibration direction falls within the orthographic projection of the magnetic gap on the reference plane.

[0026] In some embodiments, the basin is provided with an annular table; the air conduction speaker includes an annular fixing member, which is fixedly connected to the outer edge of the diaphragm facing the side of the basin, and the side of the annular fixing member facing away from the diaphragm is supported on the annular table; wherein, the basin is recessed on the annular table to form a first annular glue groove, the first annular glue groove is used to accommodate fixing glue, and the annular fixing member covers the first annular glue groove.

[0027] In some embodiments, the basin frame has a second annular glue groove formed in a depression on the annular table top, the second annular glue groove surrounds the first annular glue groove, and the second annular glue groove is further connected to the outer peripheral wall of the basin frame connected to the annular table top; the annular fixing member covers the second annular glue groove, and the second annular glue groove is visible from the outer peripheral wall of the basin frame.

[0028] In some embodiments, the basin frame is further provided with an annular flange connected to the inner side of the annular table top, and the first annular groove is located at the connection between the annular flange and the annular table top.

[0029] The present application provides an air conduction loudspeaker comprising: a magnet assembly, a diaphragm, and a voice coil. The magnet assembly comprises a magnetic shield, a magnet, and a magnetic plate; the magnet and the magnetic plate are stacked along a predetermined vibration direction; the magnetic shield surrounds the magnet and the magnetic plate, and a magnetic gap extending along the predetermined vibration direction is formed between the magnetic shield and the magnet and the magnetic plate; the ratio of the thickness of the magnetic plate to the magnet in the predetermined vibration direction is 0.1 to 1; the diaphragm is disposed opposite the magnet assembly along the predetermined vibration direction; one end of the voice coil is fixedly connected to the diaphragm, and the other end extends into the magnetic gap.

[0030] In some embodiments, the ratio of the thickness of the magnetic conductive plate to the thickness of the magnet in the preset vibration direction is 0.2 to 0.9, or 0.3 to 0.8.

[0031] In some embodiments, the magnetic cover includes a cylindrical side plate and a bottom plate, the cylindrical side plate is connected to the outer periphery of the bottom plate, and the cylindrical side plate surrounds the magnet and the magnetic plate; the magnetic plate and the bottom plate are located on opposite sides of the magnet along a preset vibration direction, and the magnetic plate is closer to the diaphragm than the magnet; the ratio of the thickness of the bottom plate to the magnet in the preset vibration direction is 0.1 to 0.9.

[0032] In some embodiments, the ratio of the thickness of the bottom plate to the thickness of the magnet in the preset vibration direction is 0.2 to 0.8, or 0.3 to 0.7.

[0033] In some embodiments, the magnetic conductive plate is provided with a first through hole along a preset vibration direction; and / or the bottom plate is provided with a second through hole along the preset vibration direction.

[0034] In some embodiments, the center of the first through hole and the center of the second through hole are collinearly arranged in a preset vibration direction; and / or, a projection of the first through hole on the bottom plate along the preset vibration direction falls into the second through hole.

[0035] In some embodiments, the cylindrical side plate and the bottom plate are integrally formed, and the thickness of the cylindrical side plate is consistent with the thickness of the bottom plate.

[0036] In some embodiments, the thickness of the magnet is 0.5 to 3 mm, or 0.9 to 2.5 mm; and / or the thickness of the magnetic conductive plate is 0.3 mm to 1.7 mm.

[0037] In some embodiments, the speaker includes a basin frame, which is connected to the periphery of the magnetic cover, and one end of the basin frame extends beyond the magnetic cover along a preset vibration direction, and the outer periphery of the diaphragm is fixed to one end of the basin frame; the basin frame is provided with an annular table top; the speaker includes an annular fixing member, which is located between the annular table top and the diaphragm, and fixedly connects the basin frame and the diaphragm; wherein, the basin frame is recessed on the annular table top to form a first annular glue groove and a second annular glue groove, the first annular glue groove is used to accommodate fixing glue, the annular fixing member is supported on the annular table top, and covers the first annular glue groove; the second annular glue groove surrounds the first annular glue groove, and the second annular glue groove is further connected to the outer peripheral wall of the basin frame connected to the annular table top; the annular fixing member covers the second annular glue groove, and makes the second annular glue groove visible from the outer peripheral wall of the basin frame.

[0038] The present application provides a wearable electronic device, which includes a housing and an air conduction speaker as described in any of the above embodiments, wherein the air conduction speaker is arranged inside the housing.

[0039] In some embodiments, the wearable electronic device includes a bone conduction speaker, which is disposed inside the housing and spaced apart from the air conduction speaker.

[0040] The beneficial effects of the present application are: the present application provides a diaphragm, which includes: a central body and a folding ring; the folding ring is connected to the outer periphery of the central body; the folding ring includes two arc segments and two connecting segments, and the two arc segments are spaced apart and arranged opposite to each other; the two connecting segments are spaced side by side and connected one to one between two pairs of opposite ends of the two arc segments; wherein, each arc segment is provided with a plurality of first pattern grooves spaced apart from each other along the extension direction of the arc segment, and the two ends of each first pattern groove extend toward the inner ring and the outer ring of the folding ring respectively, and the plurality of first pattern grooves are radially arranged along the same rotation direction. Each arc segment is provided with a plurality of first pattern grooves spaced apart from each other along the extension direction of the arc segment, and the two ends of each first pattern groove extend toward the inner ring and the outer ring of the fold respectively. Based on this, the first pattern grooves can provide a circumferential buffering effect around the diaphragm for the arc segment when the arc segment and the connecting segment are deformed, thereby reducing the stress generated when the arc segment is deformed, thereby effectively reducing the probability of elastic failure of the fold, effectively improving the working stability and service life of the diaphragm, and thus effectively improving the service life of the wearable electronic device. Furthermore, the plurality of first pattern grooves are radially arranged along the same rotation direction, which can be understood as the plurality of first pattern grooves being tilted along the same rotation direction, and the distance between two adjacent first pattern grooves gradually increases along the radial direction from the inner ring to the outer ring of the fold. Since the stress generated when the arc segment is deformed when the diaphragm vibrates along the preset vibration direction will have circumferential stress, in the embodiment of the present application, multiple first pattern grooves are radially arranged along the same rotation direction to better alleviate the circumferential stress during deformation, thereby further reducing the probability of elastic failure of the folding ring and improving the working stability and service life of the diaphragm.

[0041] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

Brief Description of the Drawings

[0042] 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.

[0043] FIG1 is a schematic diagram of the assembled three-dimensional structure of an embodiment of a wearable electronic device of the present application;

[0044] FIG2 is an exploded schematic diagram of the structure of the movement assembly shown in FIG1 ;

[0045] FIG3 is an exploded schematic diagram of the structure of the air conduction speaker shown in FIG2 ;

[0046] FIG4 is a schematic cross-sectional view of the structure of the air conduction loudspeaker shown in FIG2 ;

[0047] FIG5 is a schematic front view of the structure of the diaphragm shown in FIG3 ;

[0048] FIG6 is a schematic diagram of a partial enlargement of D of the diaphragm shown in FIG5 ;

[0049] FIG7 is a schematic diagram of a portion D of the diaphragm shown in FIG6 , viewed in the direction E;

[0050] FIG8 is an enlarged schematic diagram of a portion A of the air conduction loudspeaker shown in FIG4 ;

[0051] FIG9 is an enlarged schematic diagram of a portion B of the air conduction loudspeaker shown in FIG4 ;

[0052] FIG10 is an enlarged schematic diagram of a portion C of the air conduction loudspeaker shown in FIG4 . [Specific implementation method]

[0053] In order to enable those skilled in the art to better understand the technical solution of the present application, the charging box provided by the present application is further described in detail below with reference to the accompanying drawings and specific embodiments. It is understandable that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0054] The terms "first," "second," and the like in this application are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0055] The present application provides a wearable electronic device 100, wherein the wearable electronic device may include wearable electronic devices such as headphones and smart glasses. Below, the present application takes the wearable electronic device as headphones as an example to describe the exemplary structure of the wearable electronic device 100.

[0056] As shown in Figure 1, the wearable electronic device 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 backhook assembly 3. The backhook assembly 3 connects the two earhook assemblies 2. The backhook assembly 3 is used to wrap around the back of the user's neck or head and can provide a clamping force, so that the two core assemblies 1 are clamped to the sides of the user's face and the earhook assemblies 2 are more firmly hung on the user's ears. Of course, the wearable electronic device 100 can also not include the backhook assembly 3, and the core assembly 1 can be worn on the user's ears through the earhook assemblies 2.

[0057] Optionally, as shown in FIG2 , in this embodiment, the core assembly 1 includes a housing 10, an air conduction speaker 12, and a bone conduction speaker 11, wherein the air conduction speaker 12 and the bone conduction speaker 11 are disposed within the housing 10, and the air conduction speaker 12 and the bone conduction speaker 11 are spaced apart. Based on this, the core assembly 1 composed of the air conduction speaker 12 and the bone conduction speaker 11 disposed simultaneously within the housing 10 can effectively improve the sound quality of the wearable electronic device. Furthermore, the bone conduction speaker 11 and the air conduction speaker 12 are spaced apart from each other, thereby effectively preventing mutual interference between the bone conduction speaker 11 and the air conduction speaker 12, thereby effectively improving the sound quality of the wearable electronic device 100.

[0058] Optionally, in some embodiments, the core assembly 1 may not have the bone conduction speaker 11, and only the air conduction speaker 12 may be provided in the housing 10, which will not be described in detail herein.

[0059] The present application also proposes an air conduction speaker 12, as shown in Figures 2 to 4. The air conduction speaker 12 is used for a wearable electronic device in any of the above embodiments, wherein the air conduction speaker 12 can also be applied to other wearable electronic devices that are not equipped with a bone conduction speaker 11. Here, this article mainly describes the air conduction speaker 12 of the present application based on its application in the above-mentioned wearable electronic devices.

[0060] As shown in Figures 2-4, the air conduction speaker 12 includes a magnet assembly 120, a basket 121, a diaphragm 122, and a voice coil 123. The magnet assembly 120 is provided with a magnetic gap 201 extending along a predetermined vibration direction X1. The basket 121 is fixedly disposed around the periphery of the magnet assembly 120. The periphery of the diaphragm 122 is fixed to the basket 121 and disposed opposite the magnet assembly 120. One end of the voice coil 123 is fixedly connected to the diaphragm 122, and the other end extends into the magnetic gap 201. The lower surface of the diaphragm 122 facing the magnet assembly 120 has a connection point 202 connected to one end of the voice coil 123. The magnet assembly 120 has a top surface 203 facing the diaphragm 122 in the predetermined vibration direction X1. The diaphragm 122 has a longest dimension L1 perpendicular to the predetermined vibration direction X1. In a natural static state, a first spacing dimension L2 is provided between the connection position 202 and the top surface 203 in the preset vibration direction X1; and a ratio of the first spacing dimension L2 to the longest dimension L1 is 0.1-0.2.

[0061] Specifically, one end of the voice coil 123 is connected to the connection position 202 of the diaphragm 122, and the other end thereof extends to the magnetic gap 201. The outer periphery of the diaphragm 122 is fixedly connected to the frame 121. The voice coil 123 and the magnet assembly 120 interact with each other inductively, thereby driving the diaphragm 122 to vibrate along a predetermined vibration direction X1. The magnet assembly 120 has a top surface 203 facing the diaphragm 122 in the predetermined vibration direction X1. In a natural state, the ratio of the longest dimension L1 of the diaphragm 122 to the first spacing dimension L2 is set within a range of 0.06 to 0.2. Based on this, the relationship between the size of the diaphragm 122 and the vibration space of the voice coil 123 along the predetermined vibration direction X1 can be effectively coordinated to obtain an optimally sized diaphragm 122 and vibration space, thereby effectively improving the vibration effect of the diaphragm 122 and, in turn, the sound quality of the air conduction speaker 12. For example, in some embodiments, the longest dimension L1 is set to 18 mm, and the first spacing dimension L2 is set to 1.16 mm. Based on this setting, the diaphragm 122 can have a larger size to improve the sound quality of the air conduction speaker 12, while also reserving a sufficiently large vibration space for the voice coil 123 along the preset vibration direction X1, effectively preventing the diaphragm 122 from colliding with the magnet assembly 120 and causing sound quality loss.

[0062] Optionally, as shown in FIG5 , the diaphragm 122 is arranged in a racetrack shape, having a long axis direction X2 and a short axis direction X3 perpendicular to each other; the diaphragm 122 has a longest dimension L1 along the long axis direction X2. Specifically, in some embodiments, the planar structure of the diaphragm 122 is arranged in a racetrack shape. In some embodiments, the diaphragm 122 having such a planar structure is also referred to as a racetrack-shaped diaphragm, wherein the long axis direction X2 is a direction parallel to the connecting section 1224, and the short axis direction X3 is a direction perpendicular to the connecting section 1224. For details, please refer to the following content, which will not be described in detail here. In other embodiments, the diaphragm 122 may also be arranged in other shapes, such as square, circular, etc.

[0063] Optionally, as shown in Figures 4-5, the diaphragm 122 includes: a central body 1222 and a fold 1221. The fold 1221 is connected to the outer periphery of the central body 1222; the fold 1221 includes two arcuate segments 1223 and two connecting segments 1224, the two arcuate segments 1223 being spaced apart and arranged opposite to each other; the two connecting segments 1224 are spaced apart side by side and connected one-to-one between two pairs of opposite ends of the two arcuate segments 1223; each arcuate segment 1223 is provided with a plurality of first pattern grooves 1225 spaced apart from each other along the extension direction of the arcuate segment 1223, the two ends of each first pattern groove 1225 extending toward the inner ring and the outer ring of the fold 1221 respectively, and the plurality of first pattern grooves 1225 are radially arranged along the same rotation direction.

[0064] Specifically, the diaphragm 122 serves as the diaphragm 122 of the air conduction speaker 12 , and can vibrate along a preset vibration direction X1 to achieve sound generation. The folding ring 1221 includes two arc segments 1223 and two connecting segments 1224. The arc segments 1223 and the connecting segments 1224 are deformed (for example, deformation caused by extrusion) as the diaphragm 122 vibrates along the preset vibration direction X1. Each arc segment is provided with a plurality of first pattern grooves 1225 spaced from each other along the extension direction of the arc segment 1223, and the two ends of each first pattern groove 1225 extend toward the inner ring and the outer ring of the folding ring 1221 respectively. Based on this, the first pattern grooves 1225 can provide a circumferential buffering effect around the diaphragm 122 for the arc segment 1223 when the arc segment 1223 and the connecting segment 1224 are deformed, thereby reducing the stress generated when the arc segment 1223 is deformed, thereby effectively reducing the probability of elastic failure of the folding ring 1221, effectively improving the working stability and working life of the diaphragm 122, and thereby effectively improving the working life of the wearable electronic device. Furthermore, the plurality of first grooves 1225 are radially arranged along the same rotational direction. This can be understood as the plurality of first grooves 1225 being arranged obliquely along the same rotational direction, with the distance between two adjacent first grooves 1225 gradually increasing along the radial direction from the inner ring to the outer ring of the edge 1221. Because the stress generated by the deformation of the arc-shaped segment 1223 when the diaphragm 122 vibrates along the preset vibration direction X1 includes circumferential stress, in the embodiment of the present application, the radial arrangement of the plurality of first grooves 1225 along the same rotational direction can better mitigate the circumferential stress during deformation, thereby further reducing the probability of elastic failure of the edge 1221 and improving the operational stability and service life of the diaphragm 122.

[0065] Optionally, as shown in Figures 4-6, in some embodiments, the folding ring 1221 has a major axis direction X2 and a minor axis direction X3 that are perpendicular to each other, and the two connecting segments 1224 extend along the major axis direction X2 and are arranged at intervals along the minor axis direction X3; on the reference plane defined by the major axis direction X2 and the minor axis direction X3, the first tread groove 1225 has a first projection, and the inner edge of the folding ring 1221 has a second projection; the extension line of the first projection and the second projection have an intersection on the reference plane; at the intersection, the angle J1 between the extension line of the first projection and the tangent of the second projection is ≥30° and less than 90°. Specifically, the inner edge of the folding ring 1221 refers to the edge of the inner ring of the folding ring 1221, wherein the first projection of the first pattern groove 1225 on the reference plane defined by the major axis direction X2 and the minor axis direction X3 and the second projection of the inner edge of the folding ring 1221 on the reference plane have an intersecting positional relationship, and the angle J1 between the extension line of the first projection and the tangent line of the second projection is ≥30° and less than 90°. Based on this, the first pattern grooves 1225 can be radially arranged on the arc segment 1223 of the folding ring 1221 along the same rotation direction, thereby effectively reducing the probability of elastic failure of the folding ring 1221, improving the working stability and working life of the diaphragm 122, and thereby effectively improving the working life of the wearable electronic device.

[0066] Optionally, as shown in Figures 4-6, in some embodiments, the angle J1 corresponding to the first grooves 1225 gradually decreases from the middle to the ends of the arc segment 1223. The angle J1 corresponding to the first grooves 1225 closer to the middle of the arc segment 1223 increases, while the angle J1 corresponding to the first grooves 1225 closer to the ends of the arc segment 1223 decreases. This allows the first grooves 1225 to effectively adapt to the deformation direction of different positions of the arc segment 1223 when deformation occurs, thereby enabling the first grooves 1225 to more effectively alleviate stress during deformation.

[0067] 4-6 , in some embodiments, the folding ring 1221 includes an inner ring folding edge 1230, an outer ring folding edge 1229, and an annular arc portion 1233 connected between the inner ring folding edge 1230 and the outer ring folding edge 1229, the annular arc portion 1233 is connected between the inner ring folding edge 1230 and the outer ring folding edge 1229, and the inner ring folding edge 1230 is connected to the central body 1222; a plurality of first tread grooves 1225 are opened in the annular arc portion 1233, and are located at the position of the annular arc portion 1233 corresponding to the arc segment 1223; wherein, the first tread groove 1225 has a first end 1225a close to the inner ring folding edge 1230 and a second end 1225b close to the outer ring folding edge 1229, and the distance L5 between the first end 1225a and the inner ring folding edge 1230 is less than the distance L4 between the second end 1225b and the outer ring folding edge 1229.

[0068] Specifically, the inner fold 1230 is formed by the inner ring of the fold 1221 being bent relative to the annular arc portion 1233 and extending inward, and is used for connecting to the central body 1222. The outer fold 1229 is formed by the outer ring of the fold 1221 being bent relative to the annular arc portion 1233 and extending outward, and is used for connecting to other components of the air conduction speaker 12 (i.e., the basin frame 121 described herein). The outer fold 1229 of the diaphragm 122 is the outer periphery of the diaphragm 122 described above. The annular arc portion 1233 is the primary portion of the fold 1221 that provides elasticity to the diaphragm 122. When the diaphragm 122 vibrates along the preset vibration direction X1, the deformation of the annular arc portion 1233 is particularly noticeable. Among them, multiple first pattern grooves 1225 are opened on the annular arc portion 1233 and are located at the position of the annular arc portion 1233 corresponding to the arc segment 1223. Based on this, the first pattern grooves 1225 are set in the annular arc portion 1233 to more effectively eliminate the stress during the deformation, thereby further reducing the probability of elastic failure of the folding ring 1221, and improving the working stability and working life of the diaphragm 122. The distance L5 between the first end 1225a and the inner ring fold 1230 is smaller than the distance L4 between the second end 1225b and the outer ring fold 1229. It can be understood that the position of the first pattern groove 1225 on the annular arc portion 1233 is closer to the inner ring fold 1230, or when the first pattern groove 1225 is opened on the annular arc portion 1233, the first pattern groove 1225 is extended to a position closer to the inner ring fold 1230. Based on this, the first pattern groove 1225 is set at the position where the deformation of the annular arc portion 1233 is larger (that is, the position of the annular arc portion 1233 close to the inner ring fold 1230), so that the first pattern groove 1225 can more effectively relieve the stress of the folding ring 1221, thereby further reducing the probability of elastic failure of the folding ring 1221, and improving the working stability and service life of the diaphragm 122.

[0069] Optionally, the depth of the first groove 1225 gradually decreases toward its ends, and the width of the first groove 1225 gradually decreases toward its ends. Specifically, because when the edge ring 1221 deforms, the deformation of the annular arc portion 1233 along the radial direction (e.g., deformation caused by extrusion) is greater, the depth of the first groove 1225 gradually decreases toward its ends, and the width of the first groove 1225 gradually decreases toward its ends. Based on this, the structure of the first groove 1225 can effectively adapt to the deformation trend of the annular arc portion 1233, effectively alleviate the deformation of the annular arc, provide an effective buffering effect, effectively protect the elasticity of the edge ring 1221, thereby effectively reducing the probability of elastic failure of the edge ring 1221, and improving the working stability and service life of the diaphragm 122.

[0070] Alternatively, as shown in FIG7 , in some embodiments, the maximum depth S1 of the first tread groove 1225 is 0.06 mm to 0.1 mm, and the maximum notch width K1 of the first tread groove 1225 is 0.14 mm to 0.18 mm. Alternatively, in some embodiments, the maximum depth S1 of the first tread groove 1225 is located in the middle of the annular arc portion 1233 along the radial direction, and the maximum notch width K1 of the first tread groove 1225 is located in the middle of the annular arc portion 1233 along the radial direction, and is located on the surface of the annular arc portion 1233.

[0071] Optionally, in some embodiments, the ratio of the depth of the first tread groove 1225 at any position to the groove width is 0.5-4.

[0072] Optionally, in some embodiments, the groove wall of the first tread groove 1225 includes a curved bottom wall 1228 and two side walls 1227 disposed opposite each other. The curved bottom wall 1228 is connected between the two side walls 1227 and is disposed in an arc-shaped recessed manner away from the groove opening of the first tread groove 1225. The curved bottom wall 1228 and the two side walls 1227 are smoothly connected. Based on this, the curved bottom wall 1228 and the two side walls 1227 disposed opposite each other form the first tread groove 1225 through the above-mentioned positional relationship.

[0073] Optionally, as shown in FIG7 , in some embodiments, the angle J2 between the two sidewalls 1227 is 50° to 120°, or 60° to 100°. This ensures a large buffer space between the two sidewalls 1227. When the edge 1221 deforms, the first grooves 1225 can effectively adapt to the deformation, thereby effectively protecting the elasticity of the edge 1221, effectively reducing the probability of elastic failure of the edge 1221, and improving the working stability and service life of the diaphragm 122.

[0074] Optionally, as shown in FIG5 , in some embodiments, the first grooves 1225 of the two arcuate segments 1223 have the same rotational direction. This allows the first grooves 1225 on both arcuate segments 1223 to adapt to the deformation of the edge 1221, thereby more effectively protecting the elasticity of the edge 1221 and effectively reducing the probability of elastic failure of the edge 1221, thereby improving the working stability and service life of the diaphragm 122.

[0075] Optionally, as shown in FIG5 , in some embodiments, at least one of the two connecting segments 1224 is provided with a plurality of spaced-apart second grooves 1226 , with the ends of each second groove 1226 extending toward the inner and outer rings of the edge 1221, respectively. Specifically, the second grooves 1226 can effectively mitigate deformation of the edge 1221 at the connecting segment 1224, thereby further reducing the probability of elastic failure of the edge 1221 and improving the operational stability and service life of the diaphragm 122. In some embodiments, both connecting segments 1224 are provided with these second grooves 1226. In other embodiments, these second grooves 1226 may be provided in only one of the two connecting segments 1224. Optionally, in some embodiments, the specific structure of the second grooves 1226 may be the same as that of the first grooves 1225 . For details, please refer to the above description and will not be further described here. In other embodiments, the second grooves 1226 may also adopt other structural forms, which will not be further described here.

[0076] Optionally, as shown in Figure 5, as described above, the folding ring 1221 has a long axis direction X2 and a short axis direction X3 that are perpendicular to each other, wherein the two connecting segments 1224 extend along the long axis direction X2 and are arranged at intervals along the short axis direction X3; the angle between the extension direction of the projection of the second pattern groove 1226 on the reference plane defined by the long axis direction X2 and the short axis direction X3 and the short axis direction X3 is less than 5°. Specifically, in some embodiments, the angle between the extension direction of the projection of the second pattern groove 1226 on the reference plane defined by the major axis direction X2 and the minor axis direction X3 and the minor axis direction X3 generally does not exceed 5°, that is, the second pattern groove 1226 is basically arranged in parallel with the minor axis direction X3. Based on this, the second pattern groove 1226 can effectively adapt to the deformation of the connecting section 1224, thereby effectively alleviating the deformation stress of the connecting section 1224, and further more effectively protecting the elasticity of the folding ring 1221, effectively reducing the probability of elastic failure of the folding ring 1221, and improving the working stability and service life of the diaphragm 122.

[0077] Optionally, as shown in FIG5 , the plurality of second grooves 1226 are divided into at least two groups; in each group of second grooves 1226, a first spacing distance L7 is provided between adjacent second grooves 1226; a second spacing distance L8 is provided between adjacent groups of second grooves 1226, wherein the first spacing distance L7 is less than the second spacing distance L8; and a third spacing distance L6 is provided between the closest second groove 1226 and the first groove 1225, wherein the first spacing distance L7 is less than the third spacing distance L6. The plurality of second grooves 1226 provided on the connecting section 1224 are divided into groups, and the second grooves 1226 in each group are evenly distributed at the first spacing distance L7 in the portion of the connecting section 1224 where deformation is severe, while the second grooves 1226 in the two groups are separated by the second spacing distance L8 in the portion of the connecting section 1224 where deformation is less severe. In this manner, the second grooves 1226 can effectively adapt to deformation of the connecting section 1224. For example, since deformation of the connecting segment 1224 primarily occurs at its ends, in this embodiment, the plurality of second grooves 1226 are divided into two groups. The two groups of second grooves 1226 are symmetrically spaced at the ends of the connecting segment 1224 along the longitudinal direction X2 at a second spacing distance L8. This allows the second grooves 1226 to effectively adapt to deformation of the connecting segment 1224. Furthermore, since the second spacing distance L8 is the spacing distance between two adjacent groups of second grooves 1226, and the third spacing distance L6 is the spacing distance between a first groove 1225 and an adjacent second groove 1226, setting the first spacing distance L7 smaller than the second spacing distance L8 and smaller than the third spacing distance L6 effectively improves the deformation-absorbing capability of the connecting segment 1224 while ensuring sufficient strength for the connecting segment 1224 and reducing deformation of the connecting segment 1224.

[0078] 4 and 8 , in some embodiments, as described above, the diaphragm 122 includes a folded ring 1221 and a central body 1222, the folded ring 1221 includes an inner ring folded edge 1230 and an outer ring folded edge 1229, the outer ring folded edge 1229 surrounds the inner ring folded edge 1230; the outer ring folded edge 1229 is relatively fixed to the basin frame 121; the central body 1222 includes a main body 1232 and an annular connecting edge 1231 connected to the outer periphery of the main body 1232; wherein the inner ring folded edge 1230 and the annular connecting edge 1231 are stacked and connected; the connection position 202 is located on the lower surface of the voice coil 123, which is closer to the inner ring folded edge 1230 and the annular connecting edge 1231; the angle J4 between the lower surface where the connection position 202 is located and the preset vibration direction X1 is ≥80° and ≤90°.

[0079] Specifically, the diaphragm 122 includes a rim 1221 and a central body 1222. The rim 1221 includes an inner rim 1230 and an outer rim 1229 surrounding the inner rim 1230. The central body 1222 includes a main body 1232 and an annular connecting edge 1231 connected to the outer periphery of the main body 1232. The inner rim 1230 and the annular connecting edge 1231 are stacked and connected to form the complete diaphragm 122. The connection position 202 is located on the lower surface of the voice coil 123, whichever of the inner ring fold 1230 and the annular connection edge 1231 is closer to the inner ring fold 1230 and the annular connection edge 1231. The angle J4 between the lower surface of the connection position 202 and the preset vibration direction X1 is limited to 80° to 90°. Based on this, the lower surface of the connection position 202 is less inclined relative to the preset vibration direction X1, thereby ensuring that there is a sufficient distance between the lower surface of the diaphragm 122 and the top surface 203 of the magnet assembly 120. In other words, the first spacing dimension L2 is sufficiently large, thereby effectively preventing the diaphragm 122 from colliding with the magnet assembly 120 and causing sound quality loss. Optionally, in some embodiments, while the diaphragm 122 includes the above-mentioned components, namely the fold 1221 and the central body 1222, its planar shape structure can be set to other shapes, such as square, circular, etc., and is not limited to a runway shape.

[0080] Optionally, as shown in Figures 4 and 8, the annular connecting edge 1231 includes a first sub-connecting edge 1231a and a second sub-connecting edge 1231b, the first sub-connecting edge 1231a is connected to the main body 1232 in a surrounding manner, and the second sub-connecting edge 1231b is connected to the first sub-connecting edge 1231a in a surrounding manner; the inner ring fold 1230 is stacked on the second sub-connecting edge 1231b, and the connection position 202 is located on the lower surface of the second sub-connecting edge 1231b facing the voice coil 123; the first sub-connecting edge 1231a and the second sub-connecting edge 1231b are connected at an angle J3, and the angle J3 between the two is ≥145° and ≤180°; and / or, in a natural static state, the outer edge of the first sub-connecting edge 1231a connected to the second sub-connecting edge 1231b is closer to the magnet assembly 120 in the vibration direction than the inner edge of the connecting main body 1232.

[0081] Specifically, the annular connecting edge 1231 includes a first sub-connecting edge 1231a and a second sub-connecting edge 1231b, the first sub-connecting edge 1231a surrounds the main body 1232 and is connected to the main body 1232, the second sub-connecting edge 1231b is arranged around the first sub-connecting edge 1231a and is connected to the first sub-connecting edge 1231a, wherein the first sub-connecting edge 1231a and the second sub-connecting edge 1231b are connected at an angle, and the angle J3 is between 145° and 180°. Based on this, the annular connecting edge 1231 is The structure in which the two sides (the first sub-connecting edge 1231a and the second sub-connecting edge 1231b on both sides of the annular connecting edge 1231 respectively) are inclined toward the middle (the middle here refers to the connection between the first sub-connecting edge 1231a and the second sub-connecting edge 1231b) effectively prevents the connecting glue (such as glue spotting, etc.) of the connecting position 202 and the connecting glue (such as glue spotting, etc.) between the second sub-connecting edge 1231b and the inner ring folding edge 1230 from overflowing into the main body 1232, affecting the vibration effect of the main body 1232, thereby effectively improving the sound quality of the air conduction speaker 12. Optionally, in some embodiments, based on the above-mentioned angle J3, the outer edge of the first sub-connecting edge 1231a connecting to the second sub-connecting edge 1231b is closer to the magnet assembly 120 in the vibration direction than the inner edge of the connecting main body 1232, that is, the connection position 202 is located on the side of the first sub-connecting edge 1231a close to the second sub-connecting edge 1231b. Based on this, it can effectively prevent the glue on the connection position 202 from overflowing into the main body 1232, affecting the vibration effect of the main body 1232, thereby further improving the sound quality of the air conduction speaker 12.

[0082] Optionally, in another embodiment, the glue or the like can be prevented from overflowing into the main body 1232 by simply limiting the positional relationship of the above-mentioned angle J3 between the first sub-connecting edge 1231a and the second sub-connecting edge 1231b. For example, the angle J3 described above is limited to the range of 145° to 180°. Alternatively, the glue or the like can be prevented from overflowing into the main body 1232 by simply limiting the outer edge and inner edge of the first sub-connecting edge 1231a. For example, the outer edge of the first sub-connecting edge 1231a connecting to the second sub-connecting edge 1231b is limited to be closer to the magnet assembly 120 in the preset vibration direction X1 than the inner edge connected to the main body 1232.

[0083] Optionally, as shown in Figures 4 and 8, the annular connecting edge 1231 is bent and connected to the main body 1232, and the main body 1232 is arched in the direction away from the magnet assembly 120; the orthographic projection of the bent connection between the annular connecting edge 1231 and the main body 1232 on the reference plane perpendicular to the preset vibration direction X1 falls within the orthographic projection of the magnetic gap 201 on the reference plane. Specifically, the projection of the annular connecting edge 1231 and the main body 1232 at the bent connection (wherein, in some embodiments, the central body 1222 can be an integral structure, wherein the annular connecting edge 1231 is a part of the bent extension of the main body 1232, and in other embodiments, the central body 1222 can also be an assembled structure, that is, the central body 1222 is composed of the annular connecting edge 1231 and the main body 1232 connected by glue, which is not described in detail in this article) along the preset vibration direction X1 falls into the magnetic gap 201. Based on this, it can effectively prevent the bent connection between the annular connecting edge 1231 and the main body 1232 from colliding with the magnetic component during the vibration of the diaphragm 122 along the preset vibration direction X1, generating noise and affecting the vibration effect of the diaphragm 122, thereby effectively improving the sound quality of the air-conducted speaker 12.

[0084] Among them, the diaphragm 122 described in any of the above embodiments can be applied to the air conduction speaker 12 of the above-mentioned movement assembly 1, and in other embodiments, the diaphragm 122 described in any of the above embodiments can also be applied to the air conduction speaker 12 of the movement assembly 1 of other embodiments or the elements that need to be applied to the diaphragm 122 to produce sound, which will not be described in detail in this article.

[0085] Optionally, the magnet assembly 120 and the voice coil 123 form a drive assembly of the air conduction speaker 12 in the manner described above, wherein the drive assembly is at least partially surrounded by the basket 121 (i.e., the magnet assembly 120, the voice coil 123, etc. are surrounded by the basket 121), and the drive assembly is connected to the central body 1222, i.e., the central body 1222 and the voice coil 123 described above are connected. Based on this, the drive assembly can drive the diaphragm 122 to vibrate along a preset vibration direction X1. In other embodiments, the drive assembly can also be composed of other components, which will not be described in detail here.

[0086] Optionally, as shown in FIG4 , the magnetic gap 201 is annular, and the magnet assembly 120 includes a middle portion surrounded by the magnetic gap 201. The top surface 203 is the upper surface of the middle portion facing the diaphragm 122. Specifically, the other end of the voice coil 123 extends into the magnetic gap 201. When the voice coil 123 drives the diaphragm 122 to vibrate along the preset vibration direction X1, the middle portion is at risk of colliding with the diaphragm 122. The top surface 203 is defined as the upper surface of the middle portion. That is, by defining the relationship between the first spacing dimension L2 and the longest dimension L1 from the upper surface of the middle portion to the connection position 202, the diaphragm 122 can effectively prevent collisions with the middle portion and generate noise, while also increasing the size of the diaphragm 122 to a certain extent, thereby effectively improving the vibration effect of the diaphragm 122 and effectively preventing noise interference, thereby effectively improving the sound quality of the air conduction speaker 12.

[0087] Optionally, as shown in FIG4 , in some embodiments, the magnet assembly 120 includes a magnetic cover 1203, a magnet 1202, and a magnetic plate 1201. The magnetic cover 1203 is fixedly connected to the frame 121. The magnetic cover 1203 surrounds the magnet 1202 and the magnetic plate 1201. The magnetic plate 1201 and the magnet 1202 are stacked, and the magnetic plate 1201 is closer to the diaphragm 122 than the magnet 1202. The magnet 1202 and the magnetic plate 1201 serve as the middle part, and the top surface 203 is the upper surface of the magnetic plate 1201 facing the diaphragm 122. Specifically, the magnet assembly 120 includes the magnetic cover 1203, the magnet 1202, and the magnetic plate 1201, wherein the magnetic cover 1203 plays a role in fixing the magnet 1202 and the magnetic plate 1201. The frame 121 is connected to the periphery of the magnetic shield 1203, and one end of the frame 121 extends beyond the magnetic shield 1203 along the preset vibration direction X1. The outer periphery of the diaphragm 122 is fixed to one end of the frame 121 (that is, the outer periphery of the diaphragm 122 is fixed to the end of the frame 121 provided with the annular table 1241, which can be seen in detail below). A mounting groove is provided in the magnetic shield 1203, and the magnet 1202 and the magnetic plate 1201 are stacked in the mounting groove. The magnetic shield 1203 is fixedly connected to the frame 121. The magnet 1202 is an element that provides a magnetic field, and the magnetic plate 1201 is a component that adjusts the magnetic flux of the magnetic field. The magnetic plate 1201 is provided on the magnet 1202 along the preset vibration direction X1. Based on this, the magnetic flux passing through the voice coil 123 can be effectively increased, thereby effectively improving the sound quality of the air conduction speaker 12.

[0088] Optionally, as shown in Figures 4 and 9, the frame 121 is provided with an annular table 1241; the air conduction speaker 12 includes an annular fixing member 124, which is fixedly connected to the outer edge of the diaphragm 122 on the side facing the frame 121. The side of the annular fixing member 124 facing away from the diaphragm 122 is supported on the annular table 1241, thereby enabling the diaphragm 122 to be more stably fixed to the frame 121 through the annular fixing member 124. Specifically, the frame 121 is recessed in the annular table 1241 to form a first annular glue groove 1242, which is used to accommodate fixing glue, and the annular fixing member 124 covers the first annular glue groove 1242. Specifically, the side of the outer edge of the diaphragm 122 facing the frame 121 is the side of the outer ring fold 1229 facing the frame 121 as described above, wherein the outer ring edge is fixedly connected to the annular table 1241 of the frame 121 via the annular fixing member 124. Based on this, the annular fixing member 124 can effectively reduce the vibration transmitted from the diaphragm 122 to the frame 121, thereby effectively improving the vibration effect of the diaphragm 122. Specifically, in some embodiments, the annular table 1241 and the side of the annular fixing member 124 facing the annular table 1241 are fixed by fixing glue. Furthermore, a first annular glue groove 1242 is also provided on the annular table 1241, which is used to accommodate the fixing glue. By accommodating fixing glue in the first annular glue groove 1242 and further fixing the annular fixing member 124 and the basin frame 121 through the fixing glue in the first annular glue groove 1242, the contact area between the fixing glue and the annular fixing member 124 and the basin frame 121 and the amount of fixing glue can be increased, thereby improving the stability of the fixation between the annular fixing member 124 and the basin frame 121, and further improving the stability of the fixation between the diaphragm 122 and the basin frame 121, effectively preventing the diaphragm 122 from generating abnormal vibration due to unstable connection.

[0089] Optionally, as shown in Figures 4 and 9, the frame 121 is further provided with an annular flange 1244 connected to the inner side of the annular table 1241, and the first annular groove is located at the connection between the annular flange 1244 and the annular table 1241. Specifically, the frame 121 is provided with the annular flange 1244, which is located on the inner side of the annular table 1241, that is, on the side close to the magnet assembly 120. Based on this annular boss, the annular boss can effectively limit the radial contraction of the annular fixing member 124, and the annular boss can also block the fixing glue in the first annular groove, preventing the fixing glue from overflowing onto the magnet assembly 120.

[0090] Optionally, as shown in Figures 4 and 9, the basin frame 121 has a second annular adhesive groove 1243 formed indented on the annular table 1241. The second annular adhesive groove 1243 surrounds the first annular adhesive groove 1242 and further communicates with the outer peripheral wall of the basin frame 121 connected to the annular table 1241. The annular fixing member 124 covers the second annular adhesive groove 1243, and the second annular adhesive groove 1243 is visible from the outer peripheral wall of the basin frame 121. Specifically, the annular table 1241 further has a second annular adhesive groove 1243 formed indented therein, which surrounds the first annular adhesive groove 1242. After the fixing glue in the first annular glue groove 1242 overflows the annular table 1241, the excess fixing glue can overflow into the second annular glue groove 1243, thereby effectively preventing the excess fixing glue from overflowing onto the outer wall of the basin frame 121 and solidifying, affecting the overall structural size and weight of the basin frame 121, thereby effectively improving the assembly accuracy and stability of the air conduction speaker 12. Furthermore, the second annular glue groove 1243 is set at the edge position of the annular table 1241 close to the outer peripheral wall of the basin frame 121, that is, the second annular glue groove 1243 is connected to the outer peripheral wall of the basin frame 121. Based on this, the size (such as area) of the annular table 1241 located between the first annular glue groove 1242 and the second annular glue groove 1243 can be larger, and the fixing glue added to the first annular glue groove 1242 will pre-fill the entire annular table 1241 before overflowing into the second annular glue groove 1243, thereby effectively increasing the contact area between the annular table 1241 and the fixing glue, and thereby effectively improving its connection stability with the diaphragm 122.

[0091] Optionally, as shown in FIG4 , in a natural static state, a second spacing dimension L9 is defined between the other end of the voice coil 123 extending into the magnetic gap 201 and the top surface 203 in the predetermined vibration direction X1. The ratio of the second spacing dimension L9 to the first spacing dimension L2 is 0.85 to 1.66. Therefore, limiting the ratio of the second spacing dimension L9 to the first spacing dimension L2 to within the range of 0.85 to 1.66 effectively prevents the voice coil 123 from separating from the magnetic gap 201 during operation, thereby effectively improving the operational stability of the voice coil 123. For example, in some embodiments, the second spacing dimension L9 is set to 1.06 mm, and the ratio of the second spacing dimension L9 to the first spacing dimension L2 is 0.91. This effectively prevents the voice coil 123 from separating from the magnetic gap 201 during operation.

[0092] Optionally, as shown in Figure 4, the magnetic gap 201 has a gap bottom surface 204 away from the connection position 202; in a natural static state, the connection position 202 and the gap bottom surface 204 have a third spacing dimension L10 in the preset vibration direction X1, and the ratio of the third spacing dimension L10 to the longest dimension L1 is 0.15 to 0.4. Among them, the position where the voice coil 123 is set is between the connection position 202 and the bottom surface of the gap 204. The longest dimension L1 of the diaphragm 122 affects the elasticity of the diaphragm 122. Therefore, the third spacing dimension L10 and the longest dimension L1 of the diaphragm 122 affect the vibration space of the voice coil 123 along the preset vibration direction X1 and the vibration effect of the diaphragm 122 to a certain extent. Among them, in this embodiment, the ratio of the third spacing dimension L10 to the longest dimension L1 is limited to the range of 0.15 to 0.4. Based on this, a diaphragm 122 with a more reasonable size can be obtained, and it can also ensure that the voice coil 123 has a larger vibration space, thereby effectively improving the vibration effect of the diaphragm 122, and then effectively improving the sound quality of the air conduction speaker 12.

[0093] Optionally, as shown in Figures 4 and 10, the magnetic shield 1203 surrounds the magnet 1202 and the magnetic plate 1201, and a magnetic gap 201 extending along a preset vibration direction X1 is formed between the magnetic shield 1203 and the magnet 1202 and the magnetic plate 1201. The ratio of the thickness of the magnetic plate 1201 to the thickness of the magnet 1202 in the preset vibration direction X1 is 0.1 to 1. Specifically, as described above, a mounting groove is provided in the magnetic shield 1203, and the magnet 1202 and the magnetic plate 1201 are stacked and arranged in the mounting groove. The magnetic shield 1203 is fixedly connected to the basin frame 121. Among them, the ratio of the thickness H1 of the magnetic conductive plate 1201 to the thickness H2 of the magnet 1202 is in the range of 0.1 to 1. Based on this, the magnetic conductive effect of the magnetic conductive plate 1201 on the magnet 1202 can be effectively improved, so as to increase the magnetic flux and magnetic field strength passing through the voice coil 123, thereby effectively improving the vibration intensity of the voice coil 123 while keeping the power output unchanged, and further effectively improving the sound quality of the air conduction speaker 12.

[0094] Optionally, as shown in Figures 4 and 10, in some embodiments, the ratio of the thickness of the magnetic plate 1201 and the magnet 1202 in the preset vibration direction X1 is 0.2 to 0.9, or 0.3 to 0.8. In other words, the ratio of the thickness H1 of the magnetic plate 1201 to the thickness H2 of the magnet 1202 is 0.2 to 0.9, or 0.3 to 0.8.

[0095] Optionally, as shown in FIG. 4 and FIG. 10 , in some embodiments, the thickness H2 of the magnet 1202 is 0.5 to 3 mm, or 0.9 to 2.5 mm; and / or the thickness H1 of the magnetic conductive plate 1201 is 0.3 mm to 1.7 mm.

[0096] Optionally, as shown in Figures 4 and 10, the magnetic cover 1203 includes a cylindrical side plate 1203b and a bottom plate 1203a, the cylindrical side plate 1203b is connected to the outer periphery of the bottom plate 1203a, and the cylindrical side plate 1203b surrounds the magnet 1202 and the magnetic plate 1201; the magnetic plate 1201 and the bottom plate 1203a are located on opposite sides of the magnet 1202 along the preset vibration direction X1, and the magnetic plate 1201 is closer to the diaphragm 122 than the magnet 1202; the ratio of the thickness of the bottom plate 1203a to the magnet 1202 in the preset vibration direction X1 is 0.1 to 0.9. Specifically, in some embodiments, as described above, the magnetic cover 1203 includes a cylindrical side plate 1203b and a bottom plate 1203a, the cylindrical side plate 1203b is connected to the outer periphery of the bottom plate 1203a, the cylindrical side plate 1203b surrounds the magnet 1202 and the magnetic plate 1201, the magnetic plate 1201 and the bottom plate 1203a are located on opposite sides of the magnet 1202 along the preset vibration direction X1 and the magnetic plate 1201 is closer to the diaphragm 122 than the magnet 1202. Among them, the ratio of the thickness H3 of the bottom plate 1203a to the thickness H2 of the magnet 1202 is set in the range of 0.1 to 0.9. Based on this, the magnetic conductivity of the floor to the magnet 1202 can be effectively improved, so as to increase the magnetic flux and magnetic field strength passing through the voice coil 123, thereby further improving the vibration intensity of the voice coil 123 while keeping the power output unchanged, thereby further improving the sound quality of the air conduction speaker 12.

[0097] Optionally, as shown in Figures 4 and 10, in some embodiments, the ratio of the thickness of the base plate 1203a to the thickness of the magnet 1202 in the preset vibration direction X1 is 0.2 to 0.8, or 0.3 to 0.7. In other words, the ratio of the thickness H3 of the base plate 1203a to the thickness H2 of the magnet 1202 is 0.2 to 0.8, or 0.3 to 0.7.

[0098] Optionally, as shown in Figures 4 and 10, the cylindrical side plate 1203b and the bottom plate 1203a are integrally formed, and the thickness H4 of the cylindrical side plate 1203b is consistent with the thickness H3 of the bottom plate 1203a. Therefore, setting the thickness of the cylindrical side plate 1203b and the bottom plate 1203a to be consistent can effectively ensure that all positions of the magnetic shield 1203 have a good magnetic conductivity effect on the magnetic field of the magnet 1202, effectively ensuring the magnetic conductivity of the magnetic shield 1203.

[0099] Optionally, as shown in FIG4 , the magnetic conductive plate 1201 is provided with a first through hole 1201a along the preset vibration direction X1; and / or the bottom plate 1203a is provided with a second through hole 1203c along the preset vibration direction X1. Specifically, in some embodiments, the magnetic conductive plate 1201 is provided with the first through hole 1201a along the preset vibration direction X1, and the bottom plate 1203a is provided with the second through hole 1203c along the preset vibration direction X1. The first through hole 1201a and the second through hole 1203c can effectively reduce the weight of the magnet assembly 120, thereby effectively reducing the weight of the movement assembly 1. Optionally, in some embodiments, the first through hole 1201a may be provided only on the magnetic conductive plate 1201, or the second through hole 1203c may be provided only on the bottom plate 1203a.

[0100] Optionally, as shown in FIG4 , the center of the first through hole 1201a and the center of the second through hole 1203c are collinearly arranged in the preset vibration direction X1; and / or, the projection of the first through hole 1201a on the bottom plate 1203a along the preset vibration direction X1 falls within the second through hole 1203c. Specifically, in this embodiment, the magnetic conductive plate 1201 is provided with a first through hole 1201a, and the bottom plate 1203a is provided with a second through hole 1203c, wherein the centers of the first through hole 1201a and the second through hole 1203c are collinearly arranged in the preset vibration direction X1. Based on this, the uniformity of the magnetic field of the magnet 1202 can be effectively ensured. In addition, the collinear arrangement of the centers of the first through hole 1201a and the second through hole 1203c in the preset vibration direction X1 can also effectively improve the structural stability of the magnet assembly 120. Furthermore, in this embodiment, the projection of the first through hole 1201a on the bottom plate 1203a along the preset vibration direction X1 falls into the second through hole 1203c, thereby further improving the uniformity of the magnetic field and the structural stability of the magnet assembly 120.

[0101] Optionally, in some embodiments, the first through hole 1201a and the second through hole 1203c may only have any one of the above-mentioned positional relationships (i.e., "the center of the first through hole 1201a and the center of the second through hole 1203c are collinearly arranged in the preset vibration direction X1" and "the projection of the first through hole 1201a on the bottom plate 1203a along the preset vibration direction X1 falls into the second through hole 1203c"), which is not described in detail herein.

[0102] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A diaphragm, characterized in that, Comprising: A central body; A surround, connected to the outer peripheral edge of the central body; the surround includes two arcuate segments and two connecting segments, the two arcuate segments being spaced apart and oppositely arranged; the two connecting segments are arranged side by side at intervals and are respectively connected between two opposite ends of the two arcuate segments; Wherein, on each of the arcuate segments, a plurality of first pattern grooves are provided at intervals along the extending direction of the arcuate segment, and both ends of each of the first pattern grooves extend towards the inner ring and the outer ring of the surround respectively, and the plurality of first pattern grooves are arranged radially along the same spiral direction.

2. The diaphragm according to claim 1, wherein The depth of the first pattern groove gradually decreases towards both ends thereof, and the groove opening width of the first pattern groove gradually decreases towards both ends thereof.

3. The diaphragm according to claim 2, wherein The maximum depth of the first pattern groove is 0.06 mm to 0.1 mm, and the maximum groove opening width of the first pattern groove is 0.14 mm to 0.18 mm.

4. The diaphragm according to any one of claims 1 - 3, wherein The ratio of the depth to the groove opening width of the first pattern groove at any position is 0.5 to 4.

5. The diaphragm according to claim 1, wherein The groove wall of the first pattern groove includes an arcuate bottom wall and two side walls oppositely arranged, the arcuate bottom wall is connected between the two side walls and is recessed in an arcuate shape towards a direction away from the groove opening of the first pattern groove, and the arcuate bottom wall and the two side walls are smoothly connected.

6. The diaphragm according to claim 5, wherein The included angle between the two side walls is 50° to 120°, or 60° to 100°.

7. The diaphragm according to claim 1, wherein The surround includes an inner ring flange, an outer ring flange, and an annular arcuate portion connected between the inner ring flange and the outer ring flange, the annular arcuate portion is connected between the inner ring flange and the outer ring flange, and the inner ring flange is connected to the central body; the plurality of first pattern grooves are provided in the annular arcuate portion and are located at positions of the annular arcuate portion corresponding to the arcuate segments; Wherein, the first pattern groove has a first end close to the inner ring flange and a second end close to the outer ring flange, and the distance between the first end and the inner ring flange is less than the distance between the second end and the outer ring flange.

8. The diaphragm according to claim 1, wherein The surround has a major axis direction and a minor axis direction perpendicular to each other, the two connecting segments extend along the major axis direction and are arranged at intervals along the minor axis direction; In a reference plane defined by the major axis direction and the minor axis direction, the first pattern groove has a first projection, and the inner edge of the surround has a second projection; an extension line of the first projection and the second projection have an intersection point in the reference plane; at the intersection point, the included angle between the extension line of the first projection and the tangent of the second projection is ≥30° and less than 90°.

9. The diaphragm according to claim 8, wherein Along the direction from the middle to both ends of the arc-shaped section, the included angle corresponding to the first pattern groove gradually decreases; among them, the included angle corresponding to the first pattern groove closer to the middle of the arc-shaped section is larger, and the included angle corresponding to the first pattern groove closer to both ends of the arc-shaped section is smaller.

10. The diaphragm according to claim 1, characterized in that The spiral directions of the multiple first pattern grooves of the two arc-shaped sections are the same.

11. The diaphragm according to claim 1, characterized in that At least one of the two connecting sections is provided with multiple second pattern grooves spaced from each other, and both ends of each second pattern groove extend towards the inner ring and the outer ring of the surround respectively.

12. The diaphragm according to claim 11, characterized in that The surround has a major axis direction and a minor axis direction perpendicular to each other, the two connecting sections extend along the major axis direction and are arranged at intervals along the minor axis direction; the extension direction of the projection of the second pattern groove on the reference plane defined by the major axis direction and the minor axis direction forms an angle less than 5° with the minor axis direction.

13. The diaphragm according to claim 12, characterized in that The multiple second pattern grooves are divided into at least two groups; in each group of the second pattern grooves, there is a first spacing distance between two adjacent second pattern grooves; there is a second spacing distance between two adjacent groups of the second pattern grooves, and the first spacing distance is less than the second spacing distance; there is a third spacing distance between the second pattern grooves closest to each other and the first pattern groove, and the first spacing distance is less than the third spacing distance.

14. An air-conduction loudspeaker, characterized in that, Comprising: A magnet assembly provided with a magnetic gap extending along a preset vibration direction; A chassis fixedly surrounding the outer periphery of the magnet assembly; A diaphragm, the outer periphery of which is fixed to the chassis and is disposed opposite to the magnet assembly; A voice coil, one end of which is fixedly connected to the diaphragm and the other end extends into the magnetic gap; Wherein, the lower surface of the diaphragm facing the magnet assembly has a connection position connected to one end of the voice coil; the magnet assembly has a top surface facing the diaphragm in the preset vibration direction; the diaphragm has a longest dimension in the direction perpendicular to the preset vibration direction; in the natural static state, there is a first spacing dimension between the connection position and the top surface in the preset vibration direction; the ratio of the first spacing dimension to the longest dimension is 0.1 - 0.

2.

15. The air conduction loudspeaker according to claim 14, characterized in that The diaphragm is arranged in a racetrack shape and has a major axis direction and a minor axis direction perpendicular to each other; the diaphragm has the longest dimension along the major axis direction.

16. The air conduction loudspeaker according to claim 14 or 15, characterized in that The magnetic gap is arranged in a ring shape, the magnet assembly includes an intermediate part surrounded by the magnetic gap, and the top surface is the upper surface of the intermediate part facing the diaphragm.

17. The air conduction loudspeaker according to claim 16, characterized in that The magnet assembly includes a magnetic shield, a magnet, and a magnetic conductive plate. The magnetic shield is fixedly connected to the chassis. The magnetic shield surrounds the magnet and the magnetic conductive plate. The magnetic conductive plate and the magnet are stacked, and the magnetic conductive plate is closer to the diaphragm than the magnet. The magnet and the magnetic conductive plate serve as the middle part, and the top surface is the upper surface of the magnetic conductive plate facing the diaphragm.

18. The air conduction loudspeaker according to claim 16, wherein in the natural static state, the voice coil extends to the other end of the magnetic gap, and there is a second interval dimension in the preset vibration direction between the voice coil and the top surface, and the ratio of the second interval distance to the first interval distance is 0.85 to 1.

66.

19. The air conduction loudspeaker according to claim 14, wherein the magnetic gap has a gap bottom surface away from the connection position; in the natural static state, there is a third interval dimension in the preset vibration direction between the connection position and the gap bottom surface, and the ratio of the third interval dimension to the longest dimension is 0.15 to 0.

4.

20. The air conduction loudspeaker according to claim 14, wherein the diaphragm includes a surround and a central body. The surround includes an inner ring flange and an outer ring flange. The outer ring flange surrounds the inner ring flange; the outer ring flange is relatively fixed to the chassis; the central body includes a main body portion and a ring-shaped connecting edge connected to the outer peripheral edge of the main body portion; wherein, the inner ring flange and the ring-shaped connecting edge are stacked and connected; the connection position is located on the lower surface of the inner ring flange and the ring-shaped connecting edge that is closer to the voice coil and faces the voice coil; the angle between the lower surface where the connection position is located and the preset vibration direction is ≥80° and ≤90°.

21. The air conduction loudspeaker according to claim 20, wherein the ring-shaped connecting edge includes a first sub-connecting edge and a second sub-connecting edge. The first sub-connecting edge is connected around the main body portion, and the second sub-connecting edge is connected around the first sub-connecting edge; the inner ring flange is stacked on the second sub-connecting edge, and the connection position is located on the lower surface of the second sub-connecting edge facing the voice coil; the first sub-connecting edge and the second sub-connecting edge are connected at an angle, and the angle between the two is ≥145° and ≤180°; and / or, in the natural static state, the outer edge of the second sub-connecting edge connected to the first sub-connecting edge is closer to the magnet assembly in the vibration direction than the inner edge connected to the main body portion.

22. The air conduction loudspeaker according to claim 20, wherein the ring-shaped connecting edge is bent and connected to the main body portion, and the main body portion arches away from the magnet assembly; the orthographic projection of the bent connection portion of the ring-shaped connecting edge and the main body portion on a reference plane perpendicular to the preset vibration direction falls within the orthographic projection of the magnetic gap on the reference plane.

23. The air conduction loudspeaker according to claim 14, wherein The basin frame is provided with an annular tabletop; the air-conducting loudspeaker includes an annular fixing member, and the annular fixing member is fixedly connected to one side of the outer edge of the diaphragm facing the basin frame, and the side of the annular fixing member facing away from the diaphragm is supported on the annular tabletop; Wherein, the basin frame forms a first annular glue groove recessed on the annular tabletop, the first annular glue groove is used for accommodating fixing glue, and the annular fixing member covers the first annular glue groove.

24. The air-conducting loudspeaker according to claim 23, wherein The basin frame forms a second annular glue groove recessed on the annular tabletop, the second annular glue groove surrounds the first annular glue groove, and the second annular glue groove further communicates with the outer peripheral wall of the basin frame connected to the annular tabletop; the annular fixing member covers the second annular glue groove, and the second annular glue groove is visible from the outer peripheral wall of the basin frame.

25. The air-conducting loudspeaker according to claim 23, wherein The basin frame is further provided with an annular flange connected to the inner side of the annular tabletop, and the first annular groove is located at the connection between the annular flange and the annular tabletop.

26. An air-conduction loudspeaker, characterized in that, Comprising: A magnet assembly, including a magnetic shield, a magnet and a magnetic conduction plate; The magnet and the magnetic conduction plate are stacked along a preset vibration direction; the magnetic shield surrounds the magnet and the magnetic conduction plate, and a magnetic gap extending along the preset vibration direction is formed between the magnetic shield and the magnet and the magnetic conduction plate; the thickness ratio of the magnetic conduction plate to the magnet in the preset vibration direction is 0.1 to 1; A diaphragm, arranged opposite to the magnet assembly along the preset vibration direction; A voice coil, one end of which is fixedly connected to the diaphragm and the other end extends into the magnetic gap.

27. The air-conducting loudspeaker according to claim 26, wherein The thickness ratio of the magnetic conduction plate to the magnet in the preset vibration direction is 0.2 to 0.9, or 0.3 to 0.

8.

28. The air-conducting loudspeaker according to claim 26, wherein The magnetic shield includes a cylindrical side plate and a bottom plate, the cylindrical side plate is connected to the outer peripheral edge of the bottom plate, and the cylindrical side plate surrounds the magnet and the magnetic conduction plate; the magnetic conduction plate and the bottom plate are located on opposite sides of the magnet along the preset vibration direction, and the magnetic conduction plate is closer to the diaphragm than the magnet; the thickness ratio of the bottom plate to the magnet in the preset vibration direction is 0.1 to 0.

9.

29. The air-conducting loudspeaker according to claim 28, wherein The thickness ratio of the bottom plate to the magnet in the preset vibration direction is 0.2 to 0.8, or 0.3 to 0.

7.

30. The air-conducting loudspeaker according to claim 28, wherein The magnetic conduction plate is provided with a first through hole along the preset vibration direction; and / or, The bottom plate is provided with a second through hole along the preset vibration direction.

31. The air-conducting loudspeaker according to claim 30, wherein The centers of the first through hole and the second through hole are collinearly arranged in the preset vibration direction; and / or, the projection of the first through hole on the bottom plate in the preset vibration direction falls into the second through hole.

32. The air conduction loudspeaker according to claim 28, wherein The cylindrical side plate and the bottom plate are integrally formed, and the thickness of the cylindrical side plate is the same as that of the bottom plate.

33. The air conduction loudspeaker according to any one of claims 26-32, wherein The thickness of the magnet is 0.5 to 3 mm, or 0.9 to 2.5 mm; and / or, the thickness of the magnetic conductive plate is 0.3 mm to 1.7 mm.

34. The air conduction loudspeaker according to claim 26, wherein The loudspeaker includes a speaker frame, the speaker frame is connected to the periphery of the magnetic conductive cover, and one end of the speaker frame extends beyond the magnetic conductive cover in the preset vibration direction, and the outer peripheral edge of the diaphragm is fixed to one end of the speaker frame; The speaker frame is provided with an annular table surface; the loudspeaker includes an annular fixing member, the annular fixing member is located between the annular table surface and the diaphragm, and fixedly connects the speaker frame and the diaphragm; wherein, the speaker frame is recessed on the annular table surface to form a first annular glue groove and a second annular glue groove, the first annular glue groove is used for accommodating fixing glue, the annular fixing member is supported on the annular table surface and covers the first annular glue groove; the second annular glue groove surrounds the first annular glue groove, and the second annular glue groove further communicates with the outer peripheral wall of the speaker frame connected to the annular table surface; the annular fixing member covers the second annular glue groove and makes the second annular glue groove visible from the outer peripheral wall of the speaker frame.

35. A wearable electronic device, characterized in that, It includes a housing and the air conduction loudspeaker according to any one of claims 14 or 26, and the air conduction loudspeaker is arranged inside the housing.

36. The wearable electronic device according to claim 35, wherein The wearable electronic device includes a bone conduction loudspeaker, the bone conduction loudspeaker is arranged inside the housing and is spaced apart from the air conduction loudspeaker.

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