Air-conducting loudspeakers and wearable electronic devices

Abstract

This application discloses an air-conducting loudspeaker and a wearable electronic device. The air-conducting loudspeaker includes a magnet assembly, a frame, a diaphragm, and a voice coil. The magnet assembly has a magnetic gap extending along a preset vibration direction; the frame is fixedly arranged around the outer periphery of the magnet assembly; the outer periphery of the diaphragm is fixed to the frame and is disposed opposite to the magnet assembly; one end of the voice coil 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 for connecting 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 its longest dimension in the direction perpendicular to the preset vibration direction. Through the above method, the vibration effect of the diaphragm can be effectively improved, thereby effectively improving the sound quality of the wearable electronic device.

Description

Technical Field

[0001] This application relates to the technical field of sound-generating devices, and in particular to an air-conducting 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 demands for these devices are also rising. Wearable electronic devices such as headphones and smart glasses are widely used in daily life, and they can be used in conjunction with mobile phones, computers, and other terminal devices to provide users with an auditory feast. Therefore, improving the sound quality of headphones and other wearable electronic devices is a pressing issue that needs to be addressed. Utility Model Content

[0003] This application provides an air-conducting loudspeaker, comprising: a magnet assembly, a frame, a diaphragm, and a voice coil. The magnet assembly has a magnetic gap extending along a predetermined vibration direction; the frame is fixedly arranged around the outer periphery of the magnet assembly; the outer periphery of the diaphragm is fixed to the frame and is disposed opposite to the magnet assembly; one end of the voice coil 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 for connecting to one end of the voice coil; the magnet assembly has a top surface facing the diaphragm in the predetermined vibration direction; the diaphragm has a longest dimension in the direction perpendicular to the predetermined vibration direction; in a natural static state, the connection position and the top surface have a first gap dimension in the predetermined vibration direction; the ratio of the first gap dimension to the longest dimension is 0.2 to 0.1.

[0004] In some embodiments, the diaphragm is arranged in a racetrack shape, having a major axis and a minor axis that are perpendicular to each other; the diaphragm has its longest dimension along the major axis.

[0005] In some embodiments, the magnetic gap is arranged in a ring shape, and the magnet assembly includes a central portion surrounded by the magnetic gap, with the top surface being the upper surface of the central portion facing the diaphragm.

[0006] In some embodiments, the magnet assembly includes a magnetic shield, a magnet, and a magnetic plate. The magnetic shield is fixedly connected to the frame and 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 form an intermediate part, and the top surface is the upper surface of the magnetic plate facing the diaphragm.

[0007] In some embodiments, in a natural static state, the other end of the voice coil extending to the magnetic gap has a second gap dimension between it and the top surface in a predetermined vibration direction, and the ratio of the second gap dimension to the first gap dimension is 0.85 to 1.66.

[0008] 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 interval dimension in a preset vibration direction, and the ratio of the third interval dimension to the longest dimension is 0.15 to 0.4.

[0009] In some embodiments, the diaphragm includes a surround and a central body. The surround includes an inner ring fold and an outer ring fold, with the outer ring fold surrounding the inner ring fold. The outer ring fold is fixed relative to the frame. The central body includes a main body portion and an annular connecting edge connected to the outer periphery of the main body portion. The inner ring fold and the annular connecting edge are stacked and connected. The connection position is located on the lower surface of the inner ring fold and the annular connecting edge, which 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°.

[0010] In some embodiments, the annular connecting edge includes a first sub-connecting edge and a second sub-connecting edge, the first sub-connecting edge being connected around the main body and the second sub-connecting edge being connected around the first sub-connecting edge; an inner annular folded edge 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 them is ≥145° and ≤180°; and / or, in a natural resting state, the outer edge of the first sub-connecting edge connecting the second sub-connecting edge is closer to the magnet assembly in the vibration direction than the inner edge of the connecting main body.

[0011] In some embodiments, the annular connecting edge is bent and connected to the main body, and the main body arches away from the magnet assembly; the orthographic projection of the bend of the annular connecting edge and the main body on a reference plane perpendicular to the preset vibration direction falls into the orthographic projection of the magnetic gap on the reference plane.

[0012] In some embodiments, the frame is provided with an annular platform; the air-conducting loudspeaker includes an annular fixing member, which is fixedly connected to the outer edge of the diaphragm on the side facing the frame, and the side of the annular fixing member away from the diaphragm is supported on the annular platform; wherein, the frame has a recess in the annular platform to form a first annular adhesive groove, the first annular adhesive groove is used to accommodate fixing adhesive, and the annular fixing member covers the first annular adhesive groove.

[0013] In some embodiments, the basin stand has a second annular groove recessed in the annular platform, the second annular groove surrounding the first annular groove, and the second annular groove further communicating with the outer peripheral wall of the basin stand connected to the annular platform; the annular fastener covers the second annular groove, and the second annular groove is visible from the outer peripheral wall of the basin stand.

[0014] In some embodiments, the basin stand is further provided with an annular flange connected to the inner side of the annular platform, and a first annular groove is located at the junction of the annular flange and the annular platform.

[0015] This application provides a wearable electronic device, which includes a housing and an air-conducting speaker as described in any of the above embodiments, the speaker being housed inside the housing.

[0016] In some embodiments, the wearable electronic device includes a bone conduction speaker disposed inside the housing and spaced apart from an air conduction speaker.

[0017] The beneficial effects of this application are as follows: This application provides an air-conducting loudspeaker, comprising: a magnet assembly, a frame, a diaphragm, and a voice coil. The magnet assembly is provided with a magnetic gap extending along a preset vibration direction; the frame is fixedly arranged around the outer periphery of the magnet assembly; the outer periphery of the diaphragm is fixed to the frame and is disposed opposite to the magnet assembly; one end of the voice coil 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 a natural static state, the connection position and the top surface have a first interval dimension in the preset vibration direction; the ratio of the first interval dimension to the longest dimension is 0.2~0.1. In its natural state, the ratio of the longest dimension of the diaphragm to the first gap dimension between the connection positions is set in the range of 0.06 to 0.2. Based on this, the relationship between the diaphragm size and the vibration space of the voice coil along the preset vibration direction can be effectively coordinated to obtain a diaphragm of better size and vibration space, thereby effectively improving the vibration effect of the diaphragm and thus effectively improving the sound quality of the air-conducting loudspeaker.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the overall assembly of an embodiment of the wearable electronic device of this application;

[0021] Figure 2 yes Figure 1 The diagram shown is an exploded view of the movement assembly.

[0022] Figure 3 yes Figure 2 The diagram shown is an exploded view of the structure of the air-conducting loudspeaker.

[0023] Figure 4 yes Figure 2 The diagram shows a cross-sectional view of the air-conducting loudspeaker.

[0024] Figure 5 yes Figure 3 The diagram shown is a frontal view of the diaphragm structure.

[0025] Figure 6 yes Figure 5 A magnified schematic diagram of a portion of the diaphragm shown in Figure D;

[0026] Figure 7 yes Figure 6 A schematic diagram of the local area D of the diaphragm in the E direction;

[0027] Figure 8 yes Figure 4 A partial enlarged schematic diagram (A) of the air-conducting loudspeaker shown;

[0028] Figure 9 yes Figure 4 A partial enlarged schematic diagram of the air-conducting loudspeaker shown at point B;

[0029] Figure 10 yes Figure 4 The diagram shows a partial enlarged C-shaped schematic of the air-conducting loudspeaker. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions of this application, the charging box provided by this application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0032] This application provides a wearable electronic device 100, which may include wearable electronic devices such as headphones and smart glasses. Hereinafter, this application uses headphones as an example to describe the exemplary structure of the wearable electronic device 100.

[0033] like Figure 1 As shown, the wearable electronic device 100 may include a core assembly 1, an ear hook assembly 2, and a back hook assembly 3. There may be two core assemblies 1. The two core assemblies 1 are used to transmit vibrations and / or sound to the user's left and right ears, respectively. The two core assemblies 1 may be identical or different. For example, one core assembly 1 may have a microphone, while the other core assembly 1 may not. Another example is that one core assembly 1 may have a button and a corresponding circuit board, while the other core assembly 1 may not have such a button and circuit board. The two core assemblies 1 may be identical on a core module (e.g., a speaker module). The core assembly 1 described below will be considered to be one of the two core assemblies 1 as an example for detailed description. There may be two ear hook assemblies 2, which can be hung on the user's left and right ears respectively, allowing the core assembly 1 to conform to the user's face. For example, one ear hook assembly 2 may have a battery, while the other ear hook assembly 2 may have control circuitry, etc. One end of the ear hook assembly 2 is connected to the mechanism assembly 1, and the other end is connected to the back hook assembly 3. The back hook assembly 3 connects the two ear hook assemblies 2 and is used to wrap around the back of the user's neck or the back of the head, providing clamping force so that the two mechanism assemblies 1 are clamped to both sides of the user's face and the ear hook assemblies 2 are more securely hung on the user's ears. Of course, the wearable electronic device 100 may also not include the back hook assembly 3, and the mechanism assembly 1 is worn on the user's ears via the ear hook assembly 2.

[0034] Optionally, such as Figure 2 As shown, in this embodiment, the core assembly 1 includes a housing 10, an air-conducting speaker 12, and a bone-conducting speaker 11. The air-conducting speaker 12 and the bone-conducting speaker 11 are disposed inside the housing 10 and are spaced apart. Therefore, the core assembly 1, consisting of both the air-conducting speaker 12 and the bone-conducting speaker 11 disposed within the housing 10, can effectively improve the sound quality of the wearable electronic device. Furthermore, the spaced-apart arrangement of the bone-conducting speaker 11 and the air-conducting speaker 12 effectively prevents mutual interference between them, thereby effectively improving the sound quality of the wearable electronic device 100.

[0035] Optionally, in some embodiments, the core assembly 1 may not have a bone conduction speaker 11, and the housing 10 may only have an air conduction speaker 12, which will not be described in detail here.

[0036] This application also proposes an air-conducting loudspeaker 12, such as Figures 2-4As shown, the air conduction speaker 12 is used in any of the above-described wearable electronic devices. The air conduction speaker 12 can also be applied to other wearable electronic devices that do not have a bone conduction speaker 11. Here, this article mainly describes the air conduction speaker 12 of this application in the application of the above-described wearable electronic devices.

[0037] like Figures 2-4 As shown, the air-conducting loudspeaker 12 includes a magnet assembly 120, a frame 121, a diaphragm 122, and a voice coil 123. The magnet assembly 120 has a magnetic gap 201 extending along a preset vibration direction X1. The frame 121 is fixedly arranged around the outer periphery of the magnet assembly 120. The outer periphery of the diaphragm 122 is fixed to the frame 121 and is positioned opposite to 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 position 202 for connecting to one end of the voice coil 123. The magnet assembly 120 has a top surface 203 facing the diaphragm 122 in the preset vibration direction X1. The diaphragm 122 has its longest dimension L1 in the direction perpendicular to the preset vibration direction X1. In a natural static state, the connection position 202 and the top surface 203 have a first interval dimension L2 in the preset vibration direction X1; the ratio of the first interval dimension L2 to the longest dimension L1 is 0.1~0.2.

[0038] Specifically, one end of the voice coil 123 is connected to the connection position 202 of the diaphragm 122, and the other end 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, thereby causing the diaphragm 122 to vibrate along a preset vibration direction X1. The magnet assembly 120 has a top surface 203 facing the diaphragm 122 in the preset vibration direction X1. In its natural state, the ratio of the longest dimension L1 of the diaphragm 122 to the first gap dimension L2 is set between 0.06 and 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 preset vibration direction X1 can be effectively coordinated to obtain the optimal size of the diaphragm 122 and the vibration space, thereby effectively improving the vibration effect of the diaphragm 122 and thus effectively improving the sound quality of the air-conducting loudspeaker 12. For example, in some embodiments, the longest dimension L1 is set to 18mm and the first interval dimension L2 is set to 1.16mm. Based on this setting, the diaphragm 122 can have a larger size to improve the sound quality of the air-conducting loudspeaker 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.

[0039] Optionally, such as Figure 5As shown, the diaphragm 122 is arranged in a racetrack shape, having a major axis direction X2 and a minor axis direction X3 that are perpendicular to each other; the diaphragm 122 has a longest dimension L1 along the major axis direction X2. Specifically, in some embodiments, the planar structure of the diaphragm 122 is set in a racetrack shape. In some embodiments, the diaphragm 122 with this type of planar structure is also called a racetrack-shaped diaphragm, wherein the major axis direction X2 is the direction parallel to the connecting segment 1224, and the minor axis direction X3 is the direction perpendicular to the connecting segment 1224. For details, please refer to the description below, which will not be elaborated here. In other embodiments, the diaphragm 122 may also be set in other shapes, such as square, circular, etc.

[0040] Optionally, such as Figure 4-5 As shown, the diaphragm 122 includes a central body 1222 and a folded ring 1221. The folded ring 1221 is connected to the outer periphery of the central body 1222; the folded ring 1221 includes two arc-shaped segments 1223 and two connecting segments 1224, the two arc-shaped segments 1223 are spaced apart and arranged opposite to each other; the two connecting segments 1224 are arranged side by side at intervals, and are connected one-to-one between the two pairs of opposite ends of the two arc-shaped segments 1223; wherein, each arc-shaped segment 1223 is provided with a plurality of first patterned grooves 1225 spaced apart from each other along the extension direction of the arc-shaped segment 1223, the two ends of each first patterned groove 1225 extend toward the inner ring and outer ring of the folded ring 1221 respectively, and the plurality of first patterned grooves 1225 are arranged radially along the same direction of rotation.

[0041] Specifically, the diaphragm 122 serves as the diaphragm 122 of the air-conducting loudspeaker 12, and it can vibrate along a preset vibration direction X1 to produce sound. The folded ring 1221 includes two arc-shaped segments 1223 and two connecting segments 1224. The arc-shaped segments 1223 and the connecting segments 1224 deform as the diaphragm 122 vibrates along a preset vibration direction X1 (e.g., deformation caused by compression). Each arc-shaped segment is provided with a plurality of first patterned grooves 1225 spaced apart from each other along the extension direction of the arc-shaped segment 1223. The two ends of each first patterned groove 1225 extend toward the inner and outer rings of the folded ring 1221, respectively. Based on this, the first patterned grooves 1225 can provide circumferential buffering for the arc-shaped segments 1223 around the diaphragm 122 when the arc-shaped segments 1223 and the connecting segments 1224 deform, thereby reducing the stress generated when the arc-shaped segments 1223 deform, thus effectively reducing the probability of elastic failure of the folded ring 1221, effectively improving the working stability and working life of the diaphragm 122, and thus effectively improving the working life of the wearable electronic device. Furthermore, the multiple first patterned grooves 1225 are arranged radially along the same direction of rotation. This can be understood as the multiple first patterned grooves 1225 being inclined along the same direction of rotation, and the distance between two adjacent first patterned grooves 1225 gradually increasing along the radial direction from the inner ring to the outer ring of the folded ring 1221. Since the stress generated when the diaphragm 122 vibrates along the preset vibration direction X1 and the arc segment 1223 deforms will have circumferential stress, in this embodiment of the application, the radial arrangement of the multiple first patterned grooves 1225 along the same direction of rotation can better alleviate the circumferential stress during deformation, thereby further reducing the probability of elastic failure of the folded ring 1221 and improving the working stability and service life of the diaphragm 122.

[0042] Optionally, such as Figure 4-6As shown, in some embodiments, the fold ring 1221 has a major axis direction X2 and a minor axis direction X3 that are perpendicular to each other. Two connecting segments 1224 extend along the major axis direction X2 and are spaced apart 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 pattern groove 1225 has a first projection, and the inner edge of the fold ring 1221 has a second projection. The extension line of the first projection and the second projection intersect at a point on the reference plane. At the intersection point, 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 fold ring 1221 refers to the edge of the inner ring of the fold ring 1221. There is an intersecting positional relationship between 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 fold ring 1221 on the reference plane. Furthermore, the angle J1 between the extension line of the first projection and the tangent of the second projection is ≥30° and less than 90°. Based on this, the first pattern groove 1225 can be arranged radially along the same direction of rotation on the arc segment 1223 of the fold ring 1221, thereby effectively reducing the probability of elastic failure of the fold ring 1221, improving the working stability and working life of the diaphragm 122, and thus effectively improving the working life of the wearable electronic device.

[0043] Optionally, such as Figure 4-6 As shown, in some embodiments, along the arc-shaped segment 1223 from the middle to both ends, the included angle J1 corresponding to the first pattern groove 1225 gradually decreases; specifically, the included angle J1 corresponding to the first pattern groove 1225 is larger closer to the middle of the arc-shaped segment 1223, and smaller closer to both ends of the arc-shaped segment 1223. Based on this, the first pattern groove 1225 can effectively adapt to the deformation direction when deformation occurs at different positions of the arc-shaped segment 1223, thereby enabling the first pattern groove 1225 to more efficiently mitigate stress during deformation.

[0044] Optionally, such as Figure 4-6 As shown, in some embodiments, the folded ring 1221 includes an inner ring folded edge 1230, an outer ring folded edge 1229, and an annular arc-shaped portion 1233 connecting the inner ring folded edge 1230 and the outer ring folded edge 1229. The annular arc-shaped portion 1233 is connected between the inner ring folded edge 1230 and the outer ring folded edge 1229, and the inner ring folded edge 1230 is connected to the central body 1222. A plurality of first patterned grooves 1225 are formed in the annular arc-shaped portion 1233 and are located at positions corresponding to the arc-shaped segment 1223 of the annular arc-shaped portion 1233. The first patterned groove 1225 has a first end 1225a near the inner ring folded edge 1230 and a second end 1225b near the outer ring folded edge 1229. The distance L5 between the first end 1225a and the inner ring folded edge 1230 is less than the distance L4 between the second end 1225b and the outer ring folded edge 1229.

[0045] Specifically, the inner ring fold 1230 is a structure formed by bending the inner ring of the ring 1221 relative to the annular arc portion 1233 and extending it inward, and it is used to connect with the central body 1222. The outer ring fold 1229 is a structure formed by bending the outer ring of the ring 1221 relative to the annular arc portion 1233 and extending it outward, and it is used to connect with other components in the air-conducting loudspeaker 12 (i.e., the frame 121 described herein). The outer ring fold 1229 of the diaphragm 122 is the outer periphery of the diaphragm 122 as described above. The annular arc portion 1233 is the main part of the ring 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 obvious. Among them, a plurality of first pattern grooves 1225 are formed in the annular arc portion 1233 and are located at the position corresponding to the arc segment 1223 in the annular arc portion 1233. Based on this, the first pattern grooves 1225 are provided in the annular arc portion 1233 to more effectively eliminate and reduce stress during deformation, thereby further reducing the probability of elastic failure of the fold 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 less than the distance L4 between the second end 1225b and the outer ring fold 1229. This can be understood as the first pattern groove 1225 being positioned closer to the inner ring fold 1230 on the annular arc portion 1233. Alternatively, when the first pattern groove 1225 is formed on the annular arc portion 1233, it is extended to a position closer to the inner ring fold 1230. Based on this, the first pattern groove 1225 is positioned in the part of the annular arc portion 1233 where the deformation is greater (i.e., the part of the annular arc portion 1233 that is closer to the inner ring fold 1230). This allows the first pattern groove 1225 to more effectively reduce the stress when the ring 1221 is folded, thereby further reducing the probability of elastic failure of the ring 1221 and improving the working stability and service life of the diaphragm 122.

[0046] Optionally, the depth of the first groove 1225 gradually decreases towards both ends, and the width of the groove opening gradually decreases towards both ends. Specifically, since the deformation of the annular arc portion 1233 along its radial direction is relatively large when the folded ring 1221 deforms (e.g., deformation caused by compression), the depth of the first groove 1225 gradually decreases towards both ends, and the width of the first groove 1225 gradually decreases towards both 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 portion, play an effective buffering role, effectively protect the elasticity of the folded ring 1221, thereby effectively reducing the probability of elastic failure of the folded ring 1221 and improving the working stability and service life of the diaphragm 122.

[0047] Optionally, such as Figure 7 As shown, in some embodiments, the maximum depth S1 of the first pattern groove 1225 is 0.06mm~0.1mm, and the maximum groove width K1 of the first pattern groove 1225 is 0.14mm~0.18mm. Optionally, in some embodiments, the maximum depth S1 of the first pattern groove 1225 is located at the center of the annular arc-shaped portion 1233 along its radial direction, and the maximum groove width K1 of the first pattern groove 1225 is located at the center of the annular arc-shaped portion 1233 along its radial direction, and is located at the surface of the annular arc-shaped portion 1233.

[0048] Optionally, in some embodiments, the ratio of the depth of the first patterned groove 1225 to the width of the groove at any position is 0.5 to 4.

[0049] Optionally, in some embodiments, the groove wall of the first patterned groove 1225 includes an arc-shaped bottom wall 1228 and two side walls 1227 disposed opposite to each other. The arc-shaped bottom wall 1228 is connected between the two side walls 1227 and is arc-shapedly recessed in the direction away from the groove opening of the first patterned groove 1225. The arc-shaped bottom wall 1228 and the two side walls 1227 are smoothly connected. Based on this, the arc-shaped bottom wall 1228 and the two side walls 1227 disposed opposite to each other form the first patterned groove 1225 through the above-mentioned positional relationship.

[0050] Optionally, such as Figure 7 As shown, in some embodiments, the included angle J2 between the two sidewalls 1227 is 50°~120°, or 60°~100°. This ensures a large buffer space between the two sidewalls 1227, allowing the first groove 1225 to effectively adapt to deformation when the fold ring 1221 deforms, thereby effectively protecting the elasticity of the fold ring 1221 and reducing the probability of elastic failure of the fold ring 1221, thus improving the working stability and service life of the diaphragm 122.

[0051] Optionally, such as Figure 5 As shown, in some embodiments, the rotation directions of the plurality of first grooves 1225 on the two arc-shaped segments 1223 are the same. This allows the first grooves 1225 on both arc-shaped segments 1223 to adapt to the deformation of the folded ring 1221, thereby more effectively protecting the elasticity of the folded ring 1221, effectively reducing the probability of elastic failure of the folded ring 1221, and improving the working stability and service life of the diaphragm 122.

[0052] Optionally, such as Figure 5As shown, in some embodiments, at least one of the two connecting segments 1224 is provided with a plurality of second patterned grooves 1226 spaced apart from each other, with both ends of each second patterned groove 1226 extending toward the inner and outer rings of the folded ring 1221, respectively. Specifically, the second patterned grooves 1226 can effectively reduce the deformation of the folded ring 1221 at the connecting segment 1224, thereby further reducing the probability of elastic failure of the folded ring 1221 and improving the working stability and service life of the diaphragm 122. In some embodiments, both connecting segments 1224 are provided with the aforementioned second patterned grooves 1226; in other embodiments, the aforementioned second patterned grooves 1226 may be provided only in one of the two connecting segments 1224. Optionally, in some embodiments, the specific structure of the second patterned groove 1226 may be consistent with that of the first patterned groove 1225, as described above, and will not be repeated in detail here. In other embodiments, the second patterned groove 1226 may also adopt other structural forms, which will not be repeated in detail here.

[0053] Optionally, such as Figure 5 As shown above, the fold ring 1221 has a major axis direction X2 and a minor axis direction X3 that are perpendicular to each other. The two connecting segments 1224 extend along the major axis direction X2 and are spaced apart along the minor axis direction X3. The angle between the extension direction of the projection of the second pattern groove 1226 onto the reference plane defined by the major axis direction X2 and the minor axis direction X3 and the minor 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 onto 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 parallel to 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 reducing the deformation stress of the connecting section 1224, and thus more effectively protecting the elasticity of the fold ring 1221, effectively reducing the probability of elastic failure of the fold ring 1221, and improving the working stability and working life of the diaphragm 122.

[0054] Optionally, such as Figure 5As shown, the plurality of second pattern grooves 1226 are divided into at least two groups; in each group of second pattern grooves 1226, there is a first interval distance L7 between two adjacent second pattern grooves 1226; there is a second interval distance L8 between two adjacent groups of second pattern grooves 1226, and the first interval distance L7 is smaller than the second interval distance L8; there is a third interval distance L6 between the closest second pattern groove 1226 and the first pattern groove 1225, and the first interval distance L7 is smaller than the third interval distance L6. The plurality of second pattern grooves 1226 provided on the connecting section 1224 are divided into groups, and the second pattern grooves 1226 in each group are evenly distributed in the severely deformed parts of the connecting section 1224 with the first interval distance L7, while in the less deformed parts of the connecting section 1224, the two groups of second pattern grooves 1226 are separated by the second interval distance L8. Based on this, the second pattern grooves 1226 can effectively adapt to the deformation of the connecting section 1224. For example, since the deformation of the connecting segment 1224 mainly occurs at its two ends, in this embodiment, the plurality of second pattern grooves 1226 are divided into two groups. The two groups of second pattern grooves 1226 are symmetrically spaced at both ends of the connecting segment 1224 along the long axis direction X2 with a second interval distance L8. This allows the second pattern grooves 1226 to effectively adapt to the deformation of the connecting segment 1224. Furthermore, since the second interval distance L8 is the interval between two adjacent groups of second pattern grooves 1226, and the third interval distance L6 is the interval between the first pattern groove 1225 and the adjacent second pattern groove 1226, setting the first interval distance L7 to be less than the second interval distance L8 and the third interval distance L6 effectively improves the deformation buffering capacity of the connecting segment 1224 while ensuring that the connecting segment 1224 has sufficient strength and reducing the deformation of the connecting segment 1224.

[0055] Optionally, such as Figure 4 and Figure 8 As shown, 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, with the outer ring folded edge 1229 surrounding the inner ring folded edge 1230. The outer ring folded edge 1229 is fixed relative to the frame 121. The central body 1222 includes a main body portion 1232 and an annular connecting edge 1231 connected to the outer periphery of the main body portion 1232. 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 inner ring folded edge 1230 and the annular connecting edge 1231 that is closer to the voice coil 123 and faces the voice coil 123. The angle J4 between the lower surface where the connection position 202 is located and the preset vibration direction X1 is ≥80° and ≤90°.

[0056] Specifically, 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 surrounding the inner ring folded edge 1230. The central body 1222 includes a main body portion 1232 and an annular connecting edge 1231 connected to the outer periphery of the main body portion 1232. The inner ring folded edge 1230 and the annular connecting edge 1231 are stacked and connected to form a complete diaphragm 122. The connection position 202 is located on the lower surface of the inner ring folded edge 1230 and the annular connecting edge 1231, which is closer to the voice coil 123 and faces the lower surface of the voice coil 123. The angle J4 between the lower surface of the connection position 202 and the preset vibration direction X1 is limited to the range of 80° to 90°. This ensures that the lower surface of the connection position 202 has a small inclination relative to the preset vibration direction X1, thereby ensuring sufficient distance between the lower surface of the diaphragm 122 and the top surface 203 of the magnet assembly 120, i.e., ensuring that the first gap dimension L2 is large enough, 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-described components, namely the folded ring 1221 and the central body 1222, its planar shape can be set to other shapes, such as square, circular, etc., not limited to a racetrack shape.

[0057] Optionally, such as Figure 4 and Figure 8 As shown, 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, and the second sub-connecting edge 1231b is connected to the first sub-connecting edge 1231a. The inner ring folded edge 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 them is ≥145° and ≤180°. And / or, in a natural static state, 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 main body 1232.

[0058] 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 surrounds the first sub-connecting edge 1231a and is connected to the first sub-connecting edge 1231a. 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 presents... The structure inclines from both sides (the first sub-connecting edge 1231a and the second sub-connecting edge 1231b on both sides of the annular connecting edge 1231 respectively) toward the middle (the middle refers to the connection point between the first sub-connecting edge 1231a and the second sub-connecting edge 1231b) to effectively prevent the adhesive (e.g., glue application) at the connection position 202 and the adhesive (e.g., glue application) between the second sub-connecting edge 1231b and the inner annular folded edge 1230 from overflowing into the main body 1232 and affecting the vibration effect of the main body 1232, thereby effectively improving the sound quality of the air-conducting speaker 12. Optionally, in some embodiments, based on the aforementioned included 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 closer to the second sub-connecting edge 1231b. Based on this, it can effectively prevent the adhesive on the connection position 202 from overflowing into the main body 1232 and affecting the vibration effect of the main body 1232, thereby further improving the sound quality of the air-conducting speaker 12.

[0059] Alternatively, in another embodiment, the overflow of adhesive or the like into the main body 1232 can be prevented by limiting the positional relationship of the included angle J3 between the first sub-connecting edge 1231a and the second sub-connecting edge 1231b. For example, the included angle J3 described above is limited to the range of 145° to 180°. Alternatively, the overflow of adhesive or the like into the main body 1232 can be prevented by limiting the outer edge and the 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 of the main body 1232.

[0060] Optionally, such as Figure 4 and Figure 8As shown, the annular connecting edge 1231 is bent and connected to the main body 1232, and the main body 1232 arches away from the magnet assembly 120; the orthographic projection of the bend connection between the annular connecting edge 1231 and the main body 1232 on the reference plane perpendicular to the preset vibration direction X1 falls into the orthographic projection of the magnetic gap 201 on the reference plane. Specifically, the projection of the annular connecting edge 1231 and the bent connection of the main body 1232 (in some embodiments, the central body 1222 can be an integral structure, wherein the annular connecting edge 1231 is a bent extension of the main body 1232; 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 adhesive dispensing, which will not be described in detail here) along the preset vibration direction X1 falls into the magnetic gap 201. Based on this, it can effectively prevent the bent connection of the annular connecting edge 1231 and the main body 1232 from colliding with the magnetic components during the vibration of the diaphragm 122 along the preset vibration direction X1, which would generate noise and affect the vibration effect of the diaphragm 122, thereby effectively improving the sound quality of the air-conducting loudspeaker 12.

[0061] In any of the above embodiments, the diaphragm 122 described can be applied to the air-conducting speaker 12 of the above-described mechanism assembly 1. In other embodiments, the diaphragm 122 described in any of the above embodiments can also be applied to the air-conducting speaker 12 of the mechanism assembly 1 of other embodiments or to other components that need to be applied to the diaphragm 122 to produce sound. These details will not be elaborated here.

[0062] Optionally, the magnet assembly 120 and the voice coil 123 constitute the driving assembly of the air-conducting loudspeaker 12 in the manner described above. The driving assembly is at least partially surrounded by the frame 121 (i.e., the magnet assembly 120, voice coil 123, etc., are surrounded by the frame 121), and the driving assembly is connected to the central body 1222, that is, the central body 1222 is connected to the voice coil 123 as described above. Based on this, the driving assembly can drive the diaphragm 122 to vibrate along a preset vibration direction X1. In other embodiments, the driving assembly may also be composed of other components, which will not be described in detail here.

[0063] Optionally, such as Figure 4As shown, the magnetic gap 201 is arranged in a ring shape, and the magnet assembly 120 includes a middle part surrounded by the magnetic gap 201. The top surface 203 is the upper surface of the middle part 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, there is a risk that the middle part will collide with the diaphragm 122. The top surface 203 mentioned above is defined as the upper surface of the middle part. That is, by defining the relationship between the first interval dimension L2 and the longest dimension L1 from the upper surface of the middle part to the connection position 202, it is possible to effectively prevent the diaphragm 122 from colliding with the middle part and generating noise. At the same time, it can also increase 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-conducting loudspeaker 12.

[0064] Optionally, such as Figure 4 As shown, in some embodiments, the magnet assembly 120 includes a magnetic shield 1203, a magnet 1202, and a magnetic plate 1201. The magnetic shield 1203 is fixedly connected to the frame 121 and 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 form an intermediate 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 a magnetic shield 1203, a magnet 1202, and a magnetic plate 1201, wherein the magnetic shield 1203 serves to fix the magnet 1202 and the magnetic plate 1201. The frame 121 is connected to the periphery of the magnetic cover 1203, and one end of the frame 121 extends beyond the magnetic cover 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 where the annular platform 1241 is provided, as described below). The magnetic cover 1203 is provided with a mounting groove, and the magnet 1202 and the magnetic plate 1201 are stacked in the mounting groove. The magnetic cover 1203 is fixedly connected to the frame 121. The magnet 1202 is the element that provides the magnetic field, and the magnetic plate 1201 is the component that adjusts the magnetic field lines. The magnetic plate 1201 is disposed 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-conducting loudspeaker 12.

[0065] Optionally, such as Figure 4 and Figure 9As shown, the frame 121 is provided with an annular platform 1241; the air-conducting loudspeaker 12 includes an annular fixing member 124, which is fixedly connected to the outer edge of the diaphragm 122 facing the frame 121. The side of the annular fixing member 124 away from the diaphragm 122 is supported on the annular platform 1241, thereby enabling the diaphragm 122 to be more stably fixed to the frame 121 through the annular fixing member 124. A first annular adhesive groove 1242 is recessed in the annular platform 1241 of the frame 121. The first annular adhesive groove 1242 is used to accommodate fixing adhesive, and the annular fixing member 124 covers the first annular adhesive groove 1242. Specifically, the side of the outer edge of the diaphragm 122 facing the basin frame 121 is the side of the outer ring flange 1229 facing the basin frame 121 as described above. The outer ring edge is fixedly connected to the annular platform 1241 of the basin frame 121 via an annular fastener 124. Based on this, the annular fastener 124 can effectively reduce the vibration transmitted from the diaphragm 122 to the basin frame 121, thereby effectively improving the vibration effect of the diaphragm 122. Specifically, in some embodiments, the annular platform 1241 and the side of the annular fastener 124 facing the annular platform 1241 are fixed with adhesive. Furthermore, a first annular adhesive groove 1242 is also provided on the annular platform 1241 for accommodating the adhesive. By accommodating the fixing adhesive in the first annular groove 1242 and further fixing the annular fastener 124 and the basin frame 121 with the fixing adhesive in the first annular groove 1242, the contact area between the fixing adhesive and the annular fastener 124 and the basin frame 121, as well as the amount of fixing adhesive, can be increased. This can improve the stability of the fixation between the annular fastener 124 and the basin frame 121, thereby improving the stability of the fixation between the diaphragm 122 and the basin frame 121 and effectively preventing the diaphragm 122 from generating abnormal vibrations due to unstable connection.

[0066] Optionally, such as Figure 4 and Figure 9 As shown, the basin frame 121 is also provided with an annular flange 1244 connected to the inner side of the annular platform 1241, and the first annular adhesive groove 1242 is located at the connection between the annular flange 1244 and the annular platform 1241. Specifically, the basin frame 121 is provided with an annular flange 1244, which is located on the inner side of the annular platform 1241, that is, on the side closer to the magnet assembly 120. Based on this, the annular flange can effectively limit the radial contraction of the annular fixing member 124, and the annular flange can also block the fixing adhesive in the first annular adhesive groove 1242, preventing the fixing adhesive from overflowing onto the magnet assembly 120.

[0067] Optionally, such as Figure 4 and Figure 9As shown, the basin stand 121 has a second annular groove 1243 recessed in the annular platform 1241, which surrounds the first annular groove 1242. The second annular groove 1243 further connects to the outer peripheral wall of the basin stand 121 that is connected to the annular platform 1241. The annular fastener 124 covers the second annular groove 1243, and the second annular groove 1243 is visible from the outer peripheral wall of the basin stand 121. Specifically, the annular platform 1241 also has a second annular groove 1243 recessed in it, which surrounds the first annular groove 1242. After the fixing adhesive in the first annular adhesive groove 1242 overflows the annular platform 1241, the excess fixing adhesive can overflow into the second annular adhesive groove 1243, thereby effectively preventing the excess fixing adhesive from overflowing onto the outer peripheral wall of the basin frame 121 and solidifying, affecting the overall structural dimensions and weight of the basin frame 121, and thus effectively improving the assembly accuracy and stability of the air-conducting speaker 12. Furthermore, the second annular adhesive groove 1243 is positioned at the edge of the annular platform 1241 near the outer peripheral wall of the basin frame 121, meaning the second annular adhesive groove 1243 is connected to the outer peripheral wall of the basin frame 121. Based on this, the size (e.g., area) of the annular platform 1241 between the first annular adhesive groove 1242 and the second annular adhesive groove 1243 can be relatively large. The fixing adhesive added to the first annular adhesive groove 1242 will pre-fill the entire annular platform 1241 before overflowing into the second annular adhesive groove 1243, thereby effectively increasing the contact area between the annular platform 1241 and the fixing adhesive, and thus effectively improving its connection stability with the diaphragm 122.

[0068] Optionally, such as Figure 4 As shown, in a naturally static state, the voice coil 123 extends to the other end of the magnetic gap 201 and has a second gap dimension L9 between it and the top surface 203 in a preset vibration direction X1. The ratio of the second gap dimension L9 to the first gap dimension L2 is 0.85 to 1.66. Therefore, limiting the ratio of the second gap dimension L9 to the first gap dimension L2 to the range of 0.85 to 1.66 effectively prevents the voice coil 123 from detaching from the magnetic gap 201 during operation, thereby effectively improving the working stability of the voice coil 123. For example, in some embodiments, the second gap dimension L9 is set to 1.06 mm, and the ratio of the second gap dimension L9 to the first gap dimension L2 is 0.91, which effectively prevents the voice coil 123 from detaching from the magnetic gap 201 during operation.

[0069] Optionally, such as Figure 4The magnetic gap 201 has a gap bottom surface 204 that is far away from the connection position 202. In a natural static state, the connection position 202 and the gap bottom surface 204 have a third interval dimension L10 in the preset vibration direction X1. The ratio of the third interval dimension L10 to the longest dimension L1 is 0.15~0.4. The voice coil 123 is positioned 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 interval 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. In this embodiment, the ratio of the third interval 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, while ensuring that the voice coil 123 has a larger vibration space, thereby effectively improving the vibration effect of the diaphragm 122 and thus effectively improving the sound quality of the air-conducting loudspeaker 12.

[0070] Optionally, such as Figure 4 and Figure 10 As shown, 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 thickness ratio of the magnetic plate 1201 to the magnet 1202 in the preset vibration direction X1 is 0.1 to 1. Specifically, as described above, the magnetic shield 1203 is provided with a mounting groove, and the magnet 1202 and the magnetic plate 1201 are stacked in the mounting groove. The magnetic shield 1203 is fixedly connected to the basin frame 121. The ratio of the thickness H1 of the magnetic guide plate 1201 to the thickness H2 of the magnet 1202 is in the range of 0.1 to 1. Based on this, the magnetic guide plate 1201 can effectively improve the magnetic conduction effect of the magnet 1202, thereby increasing the magnetic flux and magnetic field strength passing through the voice coil 123. This effectively improves the vibration intensity of the voice coil 123 without changing the power output, and thus effectively improves the sound quality of the air-conducting loudspeaker 12.

[0071] Optionally, such as Figure 4 and Figure 10 As shown, in some embodiments, the thickness ratio of the magnetic plate 1201 to the magnet 1202 in the preset vibration direction X1 is 0.2~0.9 or 0.3~0.8. In other words, the thickness H1 of the magnetic plate 1201 to the thickness H2 of the magnet 1202 is 0.2~0.9 or 0.3~0.8.

[0072] Optionally, such as Figure 4 and Figure 10As shown, in some embodiments, the thickness H2 of the magnet 1202 is 0.5~3mm, or 0.9~2.5mm; and / or, the thickness H1 of the magnetic plate 1201 is 0.3mm~1.7mm.

[0073] Optionally, such as Figure 4 and Figure 10 As shown, the magnetic shield 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 surrounds the magnet 1202 and the magnetic shield 1201. The magnetic shield 1201 and the bottom plate 1203a are located on opposite sides of the magnet 1202 along a preset vibration direction X1, and the magnetic shield 1201 is closer to the diaphragm 122 than the magnet 1202. The thickness ratio 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 shield 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 a preset vibration direction X1, and the magnetic plate 1201 is closer to the diaphragm 122 than the magnet 1202. The ratio of the thickness H3 of the base 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 conduction effect of the base plate on the magnet 1202 can be effectively improved, thereby increasing the magnetic flux and magnetic field strength passing through the voice coil 123. This further enhances the vibration intensity of the voice coil 123 without changing the power output, and further improves the sound quality of the air-conducting loudspeaker 12.

[0074] Optionally, such as Figure 4 and Figure 10 As shown, in some embodiments, the thickness ratio of the base plate 1203a to the magnet 1202 in the preset vibration direction X1 is 0.2~0.8 or 0.3~0.7. In other words, the thickness H3 of the base plate 1203a to the thickness H2 of the magnet 1202 is 0.2~0.8 or 0.3~0.7.

[0075] Optionally, such as Figure 4 and Figure 10 As shown, the cylindrical side plate 1203b and the base plate 1203a are integrally formed, and the thickness H4 of the cylindrical side plate 1203b and the thickness H3 of the base plate 1203a are the same. Based on this, setting the thickness of the cylindrical side plate 1203b and the base plate 1203a to be the same can effectively ensure that the magnetic conductive cover 1203 has a good magnetic conductive effect on the magnetic field of the magnet 1202 at all positions, effectively guaranteeing the magnetic conductive effect of the magnetic conductive cover 1203.

[0076] Optionally, such as Figure 4 As shown, the magnetic plate 1201 is provided with a first through hole 1201a along the preset vibration direction X1; and / or, the base plate 1203a is provided with a second through hole 1203c along the preset vibration direction X1. Specifically, in some embodiments, the magnetic plate 1201 is provided with a first through hole 1201a along the preset vibration direction X1, and the base plate 1203a is provided with a 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, only the first through hole 1201a or only the second through hole 1203c can be provided on the magnetic plate 1201.

[0077] Optionally, such as Figure 4 As shown, the center of the first through hole 1201a and the center of the second through hole 1203c are collinearly arranged in a preset vibration direction X1; and / or, the projection of the first through hole 1201a onto the base plate 1203a along the preset vibration direction X1 falls into the second through hole 1203c. Specifically, in this embodiment, the magnetic plate 1201 is provided with a first through hole 1201a, and the base 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 a preset vibration direction X1. Based on this, the uniformity of the magnetic field of the magnet 1202 can be effectively guaranteed, and the collinearity 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 onto the base plate 1203a along the preset vibration direction X1 falls into the second through hole 1203c, which can further improve the uniformity of the magnetic field and the structural stability of the magnet assembly 120.

[0078] Optionally, in some embodiments, the first through hole 1201a and the second through hole 1203c may only have 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 base plate 1203a along the preset vibration direction X1 falls into the second through hole 1203c"). This will not be described in detail here.

[0079] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An air-conducting loudspeaker, characterized in that, include: The magnet assembly is provided with a magnetic gap extending along a preset vibration direction; A basin stand is fixedly arranged around the outer periphery of the magnet assembly; The diaphragm is fixed to the frame at its outer periphery and is disposed opposite to the magnet assembly; The voice coil has one end fixedly connected to the diaphragm and the other end extending into the magnetic gap; Wherein, the diaphragm has a connection position on its lower surface facing the magnet assembly that is 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 a natural resting state, there is a first interval dimension between the connection position and the top surface in the preset vibration direction; the ratio of the first interval dimension to the longest dimension is 0.1~0.

2.

2. The air-conducting loudspeaker according to claim 1, characterized in that, The diaphragm is arranged in a racetrack shape, having a major axis and a minor axis that are perpendicular to each other; the diaphragm has the longest dimension along the major axis.

3. The air-conducting loudspeaker according to claim 1 or 2, characterized in that, The magnetic gap is arranged in a ring shape, and the magnet assembly includes a middle portion surrounded by the magnetic gap, with the top surface being the upper surface of the middle portion facing the diaphragm.

4. The air-conducting loudspeaker according to claim 3, characterized in that, The magnet assembly includes a magnetic shield, a magnet, and a magnetic plate. The magnetic shield is fixedly connected to the frame and 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 form the middle part, and the top surface is the upper surface of the magnetic plate facing the diaphragm.

5. The air-conducting loudspeaker according to claim 3, characterized in that, In the natural static state, the voice coil extends to the other end of the magnetic gap and has a second gap dimension between it and the top surface in the preset vibration direction, the ratio of the second gap dimension to the first gap dimension being 0.85~1.

66.

6. The air-conducting loudspeaker according to claim 1, characterized in that, The magnetic gap has a gap bottom surface away from the connection position; in the natural static state, the connection position and the gap bottom surface have a third interval dimension in the preset vibration direction, and the ratio of the third interval dimension to the longest dimension is 0.15~0.

4.

7. The air-conducting loudspeaker according to claim 1, characterized in that, The diaphragm includes a folded ring and a central body. The folded ring includes an inner ring fold and an outer ring fold, with the outer ring fold surrounding the inner ring fold. The outer ring fold is fixed relative to the frame. The central body includes a main body portion and an annular connecting edge connected to the outer periphery of the main body portion. Wherein, the inner ring fold and the annular connecting edge are stacked and connected; the connection position is located on the lower surface of the inner ring fold and the annular connecting edge that is closer to the voice coil; the angle between the lower surface where the connection position is located and the preset vibration direction is ≥80° and ≤90°.

8. The air-conducting loudspeaker according to claim 7, characterized in that, 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, and the second sub-connecting edge is connected to the first sub-connecting edge. The inner ring folded edge 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 them is ≥145° and ≤180°; and / or, in the natural static state, the outer edge of the first sub-connecting edge connecting the second sub-connecting edge is closer to the magnet assembly in the vibration direction than the inner edge connecting the main body.

9. The air-conducting loudspeaker according to claim 7, characterized in that, The annular connecting edge is bent and connected to the main body, and the main body arches away from the magnet assembly; the orthographic projection of the bend connection between the annular connecting edge and the main body on a reference plane perpendicular to the preset vibration direction falls into the orthographic projection of the magnetic gap on the reference plane.

10. The air-conducting loudspeaker according to claim 1, characterized in that, The frame is provided with an annular platform; the air-conducting loudspeaker includes an annular fixing member, which is fixedly connected to the outer edge of the diaphragm on the side facing the frame, and the side of the annular fixing member away from the diaphragm is supported on the annular platform; The basin stand has a recessed first annular adhesive groove on the annular platform, which is used to accommodate and fix the adhesive. The annular fastener covers the first annular adhesive groove.

11. The air-conducting loudspeaker according to claim 10, characterized in that, The basin stand has a second annular groove recessed in the annular platform, the second annular groove surrounding the first annular groove, and the second annular groove further communicating with the outer peripheral wall of the basin stand connected to the annular platform; the annular fastener covers the second annular groove, and the second annular groove is visible from the outer peripheral wall of the basin stand.

12. The air-conducting loudspeaker according to claim 10, characterized in that, The basin stand is also provided with an annular flange connected to the inner side of the annular platform, and the first annular groove is located at the connection between the annular flange and the annular platform.

13. A wearable electronic device, characterized in that, It includes a housing and an air-conducting loudspeaker as described in any one of claims 1-12, the loudspeaker being housed inside the housing.

14. The wearable electronic device according to claim 13, characterized in that, The wearable electronic device includes a bone conduction speaker, which is disposed inside the housing and spaced apart from the air conduction speaker.

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