Sound emitting device, sound emitting module and electronic device

Abstract

The present invention discloses a sound output device, a sound output module, and an electronic device, the sound output device including a magnetic path system having a rectangular shape and including a permeable yoke and a central magnetic portion and a side magnetic portion provided on the permeable yoke, the side magnetic portions being located outside the central magnetic portion and surrounding and forming a magnetic gap with the central magnetic portion, the magnetic path system being provided with a mounting hole penetrating the permeable yoke and the central magnetic portion, a conductive support provided in the mounting hole, a diaphragm assembly facing the magnetic path system, a voice coil having one end connected to the diaphragm assembly and the other end suspended in the magnetic gap, and a vibration system including a damper having one end electrically connected to a pad of the conductive support and the other end connected to the diaphragm assembly and electrically connected to a lead wire of the voice coil. The present invention aims to provide a sound output device that can effectively increase the magnetic path, thereby effectively improving the magnetic field strength and increasing the BL value, thereby improving acoustic performance.

Description

[Technical Field]

[0001] The present invention relates to the technical field of electroacoustic conversion, and more particularly to a sound emitting device, a sound emitting module to which the sound emitting device is applied, and an electronic device. [Background technology]

[0002] In recent years, with the rapid development of consumer electronic products, electronic devices such as smartphones and VR devices have been widely accepted and applied by consumers. In order to meet the performance requirements of electronic products and satisfy the consumer needs for product performance, those skilled in the art have also made corresponding improvements to related accessory products such as earphones.

[0003] Sound emitting devices are important electro-acoustic conversion components in consumer electronic products, and are widely used in speakers, receivers, earphones, etc. As the performance of electronic products improves, the acoustic performance of sound emitting devices also inevitably improves. To achieve better acoustic performance, sound emitting devices often need to be larger in size and have a magnetic path system with stronger magnetic field strength.

[0004] In related technologies, sound emitting devices generally adopt a damper structure, and dampers are installed at the four corners or on the short axis of the sound emitting device, which occupy part of the space of the magnetic path system and limit the size of the side magnets of the magnetic path system, thereby reducing the magnetic field strength of the magnetic path system and reducing the BL value, which affects the acoustic performance of the sound emitting device. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention aims to provide a sound emitting device, a sound emitting module, and an electronic device that can effectively increase the magnetic path, thereby improving acoustic performance by effectively improving magnetic field strength and increasing the BL value. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention proposes a sound emitting device, a magnetic path system having a rectangular shape, the magnetic path system including a permeable yoke, and a central magnetic portion and a side magnetic portion provided on the permeable yoke, the side magnetic portions being located outside the central magnetic portion and surrounding and forming a magnetic gap with the central magnetic portion, the magnetic path system being provided with an attachment hole penetrating the permeable yoke and the central magnetic portion; a conductive support provided in the mounting hole; and a vibration system including a diaphragm assembly facing the magnetic path system, a voice coil having one end connected to the diaphragm assembly and the other end suspended in the magnetic gap, and a damper having one end electrically connected to a pad of the conductive support and the other end connected to the diaphragm assembly and electrically connected to a lead wire of the voice coil.

[0007] In one embodiment, the side magnetic portion includes a side magnet and a side washer provided on the side magnet, The side magnets and the side washers all form a closed annular structure, or there are multiple side magnets and side washers and they are arranged in a one-to-one correspondence, and the ends of adjacent side magnets are joined to form a closed annular structure.

[0008] In one embodiment, the magnetically conductive yoke is provided with a positioning table adjacent to the mounting hole and connected to the conductive support.

[0009] In one embodiment, the positioning table is formed by being bent on a side of the conductive yoke adjacent to the mounting hole, and / or the positioning table is an annular boss provided around the mounting hole, or the positioning table includes a plurality of the positioning tables provided at intervals along the periphery of the mounting hole; and / or the positioning table is located between the central magnetic portion and the conductive support; and / or the positioning table includes a first positioning portion and a second positioning portion that are arranged to form an angle, one end of the first positioning portion that is away from the second positioning portion is connected to the conductive yoke, the second positioning portion extends in a direction that is away from the central magnetic portion, and the conductive support is provided with a position regulating table that is connected to the second positioning portion and that regulates its position; And / or, the conductive support body is further provided with a recess groove corresponding to the positioning table and adapted to accommodate the positioning table.

[0010] In one embodiment, the magnetic yoke further includes a pressure groove on the opposite side from the diaphragm assembly, one end of which communicates with the mounting hole and the other end of which extends to the periphery of the magnetic yoke, for retracting wiring.

[0011] In one embodiment, the pressure groove includes a plurality of pressure grooves that are spaced apart, are symmetrical with respect to the mounting hole, and are radially arranged around the mounting hole, And / or, a retraction notch is further provided on the periphery of the magnetic conductive yoke, and one end of the pressure groove remote from the mounting hole communicates with the retraction notch.

[0012] In one embodiment, the sound emitting device further includes a connection support provided in the mounting hole, the connection support having a fixing cavity, and the conductive support being provided in the fixing cavity; a support groove is formed around the mounting hole on the opposite side of the magnetic yoke from the diaphragm assembly, the connection support includes a main body and a bracket that surrounds the main body, the main body is provided with the fixing cavity, the main body is drilled into the mounting hole, and the bracket is accommodated in the support groove to restrict its position; and / or the connection support is further provided with an escape notch that communicates with the fixing cavity, the escape notch being used to retract wiring; and / or a positioning protrusion and / or a positioning groove is provided on the inner wall of the fixing cavity, a position restricting protrusion is provided on the periphery of the conductive support, the conductive support is provided in the fixing cavity, and the position restricting protrusion is positioned and fitted into the positioning protrusion and / or the positioning groove; and / or the connection support is a metal pressed product.

[0013] In one embodiment, the central magnetic portion includes a central magnet and a central washer that are stacked together, the central magnet is interposed between the central washer and the magnetically conductive yoke, and the mounting hole passes through the magnetically conductive yoke, the central magnet, and the central washer in this order; The central magnetic portion further includes an auxiliary magnet disposed within the mounting hole and positioned between the central magnet and the conductive support, at least a portion of which corresponds to the damper.

[0014] In one embodiment, the auxiliary magnets and the central magnet are integrally formed, or the auxiliary magnets are adhesively connected to the central magnet; and / or the distance between the auxiliary magnet and the diaphragm assembly is greater than the distance between the central magnet and the diaphragm assembly; and / or the auxiliary magnet is arranged in an annular shape, or the auxiliary magnet includes a plurality of auxiliary magnets arranged at intervals and surrounding the conductive support; And / or, a mounting groove is provided on the central magnet and / or the conductive support on the side facing the auxiliary magnet, and at least a portion of the auxiliary magnet is positioned within the mounting groove.

[0015] In one embodiment, a portion of the central washer is recessed in a direction away from the diaphragm assembly, one end of the central washer communicates with the mounting hole, and the other end of the central washer extends to a periphery thereof, forming a recessed area corresponding to the lead wire of the voice coil and / or the damper; and / or the central magnet is provided in an annular shape, or the central magnet includes a plurality of central magnets that surround and form the mounting hole in an annular shape; and / or the central washer is annularly provided, or the central washer includes a plurality of central washers that annularly surround and form the mounting hole; And / or, a positioning boss is provided on the conductive support opposite to the damper, the positioning boss being positioned and abutted against the central magnet opposite to the central washer.

[0016] In one embodiment, the conductive support has a first welding surface facing the damper and connected to the damper, and a second welding surface for connecting to an external power source, Here, the first welding surface is not higher than the surface of the central magnetic portion facing the diaphragm assembly.

[0017] In one embodiment, a recessed groove having a bottom wall that forms the second welding surface is provided on the opposite side of the conductive support from the first welding surface, And / or, the conductive support includes a main body member and a land piece including a first pad portion and a second pad portion that are fitted into and connected to the main body member, and at least a portion of the first pad portion is exposed to the first welding surface, and at least a portion of the second pad portion is exposed to the second welding surface.

[0018] In one embodiment, the damper includes a plurality of dampers, each having one end connected to the conductive support and the other end connected to the diaphragm assembly, and each electrically connected to a lead wire of the voice coil; Here, each of the dampers includes, connected in sequence, a first connection portion connected to the diaphragm assembly and electrically connected to a lead wire of the voice coil, an elastic arm, and a second connection portion connected to the conductive support.

[0019] In one embodiment, the dampers are symmetrically distributed along the major axis and / or the minor axis of the magnetic path system; and / or the first connecting portion and the second connecting portion are located in different planes; and / or the first connecting portion, the elastic arm, and the second connecting portion are integrally molded, and / or the elastic arm has at least one bent portion; And / or, a vibration space for retracting the damper is formed between the conductive support and the inner wall of the mounting hole.

[0020] In one embodiment, the diaphragm assembly comprises: a diaphragm provided opposite the magnetic path system and having an inner annular hole at its center; a skeleton, the skeleton being provided in the inner annular hole and connected to the diaphragm, the damper being connected to the skeleton, and the skeleton having an assembly hole corresponding to the conductive support; a dome that covers the assembly hole, Here, the voice coil is connected to the diaphragm or the skeleton.

[0021] In one embodiment, the diaphragm includes a corrugated portion, a fixing portion connected to an outer side of the corrugated portion, and an inner ring portion connected to an inner side of the corrugated portion, the inner ring portion forming the inner ring hole, a periphery of the skeleton being connected to the inner ring portion and being located between the voice coil and the inner ring portion, and / or the framework is provided with a storage groove surrounding the assembly hole, and the dome is positioned within the storage groove; And / or, a step surface is formed on the periphery of the skeleton, positioned between the voice coil and the diaphragm, and the side of the diaphragm adjacent to the inner annular hole is supported and connected to the step surface.

[0022] In one embodiment, the framework is further provided with a connection table adjacent to the assembly hole and extending into the mounting hole, and one end of the damper remote from the conductive support is connected to the connection table.

[0023] In one embodiment, the connecting table is formed by bending or stretching the side of the skeleton adjacent to the assembly hole; and / or the connection table is an annular boss provided around the assembly hole, or the connection table includes a plurality of connection tables provided at intervals along the periphery of the assembly hole, or the connection table includes two connection tables provided corresponding to the major axis direction or the minor axis direction of the magnetic path system, respectively; and / or the connection table includes a first connection arm and a second connection arm arranged at an angle, one end of the first connection arm away from the second connection arm is connected to the inner wall of the assembly hole, the second connection arm extends in a direction away from the skeleton, and one end of the damper away from the conductive support is connected to the second connection arm, the first connection arm, and the skeleton.

[0024] The present invention further proposes a sound emitting module, the sound emitting module comprising: A module housing; the sound emitting device described above provided in the module housing; and a flexible circuit board having one end electrically connected to the conductive support of the sound emitting device and the other end for connection to an external power source.

[0025] In one embodiment, a positioning lug is provided at one end of the flexible circuit board adjacent to the conductive support, and the conductive support is formed with a positioning side wall that fits into the positioning lug; And / or, the conductive support further includes a concave cutout corresponding to the flexible circuit board.

[0026] The present invention further proposes an electronic device, the electronic device including the sound emitting device described above, Alternatively, the electronic device includes the sound emitting module described above. [Effects of the Invention]

[0027] The sound emitting device of the technical solution of the present invention has a magnetic path system in a square structure, and the magnetic path system is provided with a permeable yoke and a central magnetic part and a side magnetic part provided on the permeable yoke, so that the side magnetic part is located outside the central magnetic part and surrounds and forms a magnetic gap with the central magnetic part, and the vibration system is provided with a diaphragm assembly facing the magnetic path system, a voice coil, and a damper, so that one end of the voice coil is connected to the diaphragm assembly and the other end of the voice coil is suspended in the magnetic gap, so that by passing a current through the voice coil, the voice coil converts electrical energy into mechanical energy in the magnetic gap formed by the magnetic path system, which drives the voice coil to vibrate the diaphragm assembly, thereby realizing sound emission; at the same time, a mounting hole is provided in the magnetic path system that passes through the permeable yoke and the central magnetic part, and a conductive support is provided in the mounting hole, so that one end of the damper One end of the damper is electrically connected to the pad of the conductive support, and the other end of the damper is connected to the diaphragm assembly and is also electrically connected to the lead wire of the voice coil, so that the damper can be mounted and fixed by the conductive support, and the voice coil can be connected and conductive to an external circuit by the damper and the conductive support. The damper can also effectively prevent the voice coil from shaking or polarizing, improving the acoustic performance of the sound emitting device. By providing a mounting hole in the center of the magnetic path system where the magnetic field utilization rate of the central magnetic part is not high, weight can be reduced and the conductive support can be mounted and fixed. Because the damper is installed in the middle mounting hole of the central magnetic part, the damper does not occupy the installation space of the side magnetic part, and the side magnetic part can increase the installation volume, improve the magnetic field strength of the magnetic path system, and further improve the BL value, thereby improving the acoustic performance of the sound emitting device. [Brief explanation of the drawings]

[0028] In order to more clearly describe the embodiments of the present invention or the technical solutions in the existing technology, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the existing technology. It is obvious that the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other accompanying drawings based on the structures shown in these accompanying drawings without any creative efforts. [Figure 1] 1 is a structural schematic diagram of a sound emitting device according to an embodiment of the present invention; [Figure 2] FIG. 2 is a structural schematic diagram of a sound emitting device according to an embodiment of the present invention, showing a different viewing angle; [Figure 3] 1 is an exploded schematic view of a sound emitting device according to an embodiment of the present invention. [Figure 4] 1 is a schematic cross-sectional view of a sound emitting device according to an embodiment of the present invention, taken along the longitudinal axis direction. [Figure 5] FIG. 4 is a structural schematic diagram of a sound emitting device according to another embodiment of the present invention. [Figure 6] FIG. 10 is an exploded schematic view of a sound emitting device according to another embodiment of the present invention. [Figure 7] FIG. 10 is a schematic cross-sectional view taken along the longitudinal axis direction of a sound emitting device according to another embodiment of the present invention. [Figure 8] FIG. 10 is a schematic cross-sectional view taken along the minor axis direction of a sound emitting device according to another embodiment of the present invention. [Figure 9] 1 is a structural diagram illustrating a skeleton, a voice coil, a damper, and a conductive support connected to each other in an embodiment of the present invention; [Figure 10] FIG. 2 is a structural diagram illustrating the connection of a skeleton, a damper, and a conductive support in an embodiment of the present invention. [Figure 11] FIG. 10 is a structural schematic diagram of a skeleton, a damper, and a conductive support connected to each other in another embodiment of the present invention. [Figure 12] FIG. 1 is a schematic diagram of a skeleton structure in one embodiment of the present invention. [Figure 13] FIG. 2 is a structural schematic diagram of a skeleton in another embodiment of the present invention. [Figure 14] 1 is a structural schematic diagram of a damper according to an embodiment of the present invention; [Figure 15] FIG. 2 is a structural schematic diagram of a central washer in an embodiment of the present invention. [Figure 16] 2 is a structural schematic diagram of a magnetic conductive yoke according to an embodiment of the present invention; FIG. [Figure 17] FIG. 4 is a structural schematic diagram of a magnetic conductive yoke according to another embodiment of the present invention. [Figure 18] FIG. 10 is a structural schematic diagram of a magnetic conductive yoke according to yet another embodiment of the present invention. [Figure 19] 1 is a structural schematic diagram of a conductive support according to an embodiment of the present invention; [Figure 20] FIG. 2 is a structural schematic diagram of a conductive support in an embodiment of the present invention, viewed from another angle; [Figure 21] FIG. 2 is a cross-sectional view of a conductive support according to an embodiment of the present invention. [Figure 22] 1 is a structural schematic diagram of a conductive support and a connection support connected to each other in an embodiment of the present invention; [Figure 23] FIG. 10 is a structural schematic diagram of the conductive support and the connecting support connected to each other at different viewing angles in an embodiment of the present invention; [Figure 24] 1 is a structural schematic diagram of a connection support according to an embodiment of the present invention; [Figure 25] 1 is a structural schematic diagram of a sound emitting module according to an embodiment of the present invention; [Figure 26] 1 is a schematic cross-sectional view of a sound emitting module according to an embodiment of the present invention. [Figure 27] FIG. 10 is a structural schematic diagram of a sound emitting module according to another embodiment of the present invention.

[0029] The realization of the objects, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE INVENTION

[0030] The following clearly and completely describes the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative effort are all within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (e.g., up, down, left, right, front, back, etc.) in the embodiments of the present invention are used only to explain the relative positional relationships, movement, etc. between each part in a specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0032] At the same time, the meaning of "and / or" or "and / or" appearing in the whole sentence includes three schemes, for example, "A and / or B" includes scheme A, scheme B, or a scheme in which A and B are simultaneously satisfied.

[0033] Furthermore, in this invention, descriptions such as "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or suggesting the relative importance or the number of the indicated technical features. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one of the features. Furthermore, the technical solutions in each embodiment may be combined with each other, but this must be based on what a person skilled in the art can achieve. If the combination of technical solutions contradicts or is not feasible, it should be considered that such combination of technical solutions does not exist and is not included in the scope of protection claimed by this invention.

[0034] The present invention proposes a sound emitting device 100. As can be understood, the sound emitting device 100 is applied to electronic devices, which may be smart watches, mobile phones, audio equipment, computers, earphones, televisions, etc., but is not limited thereto.

[0035] As shown in Figures 1 to 24, in an embodiment of the present invention, the sound output device 100 is provided in a rectangular shape, and includes a magnetic path system 2 including a conductive yoke 21, a central magnetic portion 22 and a side magnetic portion 23 provided on the conductive yoke 21, the side magnetic portion 23 being located outside the central magnetic portion 22 and surrounding and forming a magnetic gap 24 together with the central magnetic portion 22, the magnetic path system 2 having a mounting hole 25 passing through the conductive yoke 21 and the central magnetic portion 22, a conductive support 3 provided in the mounting hole 25, a diaphragm assembly 41 facing the magnetic path system 2, a voice coil 42 having one end connected to the diaphragm assembly 41 and the other end suspended in the magnetic gap 24, and a vibration system 4 including a damper 43 having one end electrically connected to a pad of the conductive support 3 and the other end connected to the diaphragm assembly 41 and electrically connected to the lead wire of the voice coil 42.

[0036] In this embodiment, the sound emitting device 100 may be a sound emitting unit of a speaker, which may be a micro-speaker.

[0037] The magnetic path system 2 and the vibration system 4 of the sound emission device 100 are disposed opposite to each other. Optionally, the magnetic path system 2 is disposed in a rectangular shape. For example, the magnetic path system 2 may include a central magnetic portion 22 and a side magnetic portion 23, both of which have a rectangular structure. The vibration system 4 is also disposed in a rectangular shape. As can be understood, the periphery of the diaphragm assembly 41 of the vibration system 4 may be connected to the magnetic path system 2, or the magnetic path system 2 and the vibration system 4 may be assembled into a module housing, and this is not limited here.

[0038] In order to better assemble the magnetic path system 2 and the vibration system 4 of the sound emission device 100, in one embodiment, as shown in Figures 1 to 8, the sound emission device 100 further includes a housing 1, the magnetic path system 2 is connected to one end of the housing 1, and the vibration system 4 is connected to the other end of the housing 1 and is arranged opposite the magnetic path system 2, that is, the periphery of the diaphragm assembly 41 of the vibration system 4 is connected to the other end of the housing 1 and is arranged opposite the magnetic path system 2.

[0039] In this embodiment, the housing 1 is used to mount, fix, and support components such as the magnetic path system 2 and the vibration system 4, i.e., the housing 1 provides a mounting base for components such as the magnetic path system 2 and the vibration system 4. As can be understood, the housing 1 may be a one-piece structure or may be formed by fitting multiple divided structures together, and this is not limited thereto. The housing 1 in this embodiment is optionally a rectangular housing or frame structure, i.e., the housing 1 has a cavity with open ends, and the magnetic path system 2 and the vibration system 4 are respectively connected to and disposed opposite both sides of the housing 1, whereby the magnetic path system 2, the housing 1, and the diaphragm assembly 41 of the vibration system 4 surround and form the vibration cavity.

[0040] As can be understood, the sound emitting device 100 is applied to an electronic device, i.e., the sound emitting device 100 is attached to the electronic device by a housing 1. The housing 1 of the sound emitting device 100 may be a housing or housing structure independent of the electronic device, in which case the magnetic path system 2, vibration system 4, and other components of the sound emitting device 100 are integrated into an integral structure by the housing 1, thereby facilitating attachment and detachment. Of course, the housing 1 of the sound emitting device 100 may also be provided as an integrally molded structure with the housing or housing structure of the electronic device, thereby effectively improving structural strength and sealing performance.

[0041] In this embodiment, the housing 1 is used to accommodate and fix the vibration system 4, the magnetic path system 2, and other structures, thereby allowing the sound emitting device 100 to be applied to an electronic device or a sound emitting module as a single independent component, and is not limited thereto. Of course, in other embodiments, the sound emitting device 100 may have a modular structure, in which case the vibration system 4, the magnetic path system 2, and other structures of the sound emitting unit are attached to the modular housing 1 as multiple independent components, and is not limited thereto.

[0042] As can be understood, by providing the magnetic path system 2 in the permeable yoke 21 and the central magnetic portion 22 and side magnetic portions 23 provided in the permeable yoke 21, the magnetic path system 2 can be connected to the housing 1 by the periphery of the permeable yoke 21, or the magnetic path system 2 can be connected to the housing 1 by the side magnetic portions 23, and this is not limited thereto. In this embodiment, the side magnetic portions 23 are located outside the central magnetic portion 22, and together with the central magnetic portion 22, they surround and form a magnetic gap 24, whereby the diaphragm assembly 41 of the vibration system 4 is connected to one end of the housing 1 away from the permeable yoke 21 and is spaced apart opposite to the magnetic path system 2, whereby one end of the voice coil 42 is connected to the diaphragm assembly 41, and the other end of the voice coil 42 is suspended in the magnetic gap 24.

[0043] In order to realize the electrical connection between the voice coil 42 and the external circuit, the sound emitting device 100 in the related art generally adopts a damper structure, with both ends of the damper 43 electrically connected to the lead wire of the voice coil 42 and the external circuit, respectively. The damper 43 is installed at the four corners of the sound emitting device 100 or on the short axis of the sound emitting device 100. That is, a retreat space is provided at the four corners or on the short axis of the magnetic path system 2 to provide an installation space or installation position for the damper 43. The damper 43 occupies part of the space of the magnetic path system 2, and the size of the side magnets of the magnetic path system 2 is limited and cannot be made large. Therefore, the magnetic field strength of the magnetic path system 2 is not high, which reduces the BL value and affects the acoustic performance of the sound emitting device 100.

[0044] In this embodiment, by providing a mounting hole 25 in the magnetic path system 2 that penetrates the conductive yoke 21 and the central magnetic portion 22, and by providing a conductive support 3 within the mounting hole 25, one end of the damper 43 is electrically connected to the pad of the conductive support 3, and the other end of the damper 43 is connected to the diaphragm assembly 41 and electrically connected to the lead wire of the voice coil 42, thereby allowing the conductive support 3 and the damper 43 to introduce external current into the voice coil 42, and the damper 43 to perform a centering effect on the vibration of the voice coil 42, thereby avoiding problems such as shaking or polarization during vibration of the voice coil 42 and improving the sound emission effect and acoustic performance of the sound emission device 100.

[0045] As can be seen, the utilization rate of the magnetic field at the central position of the central magnetic portion 22 of the magnetic path system 2 is low, and by providing the mounting hole 25 at the central position of the magnetic path system 2, that is, by providing the mounting hole 25 at the central position where the utilization rate of the magnetic field of the central magnetic portion 22 in the magnetic path system 2 is not high, it is possible to achieve weight reduction and to achieve the mounting and fixing of the conductive support body 3, on the premise that the impact on the magnetic field strength of the magnetic path system is relatively small. Furthermore, since the damper 43 is provided in the mounting hole 25 in the middle of the central magnetic portion 22, the damper 43 does not occupy the installation space of the side magnetic portion 23, and as a result, the installation volume of the side magnetic portion 23 can be increased, the magnetic field strength of the magnetic path system 2 can be improved, and the BL value can be further improved, thereby improving the acoustic performance of the sound emission device 100.

[0046] In this embodiment, the mounting hole 25 may be a polygonal hole such as a circular hole, an elliptical hole, a square hole, a triangular hole, or an irregular-shaped hole, and specifically may be selected and set according to actual needs, and is not limited here. In this embodiment, a through-hole structure is formed in the center of the central magnetic part 22, and a third through-hole is formed in the center of the magnetic permeable yoke 21 corresponding to the through-hole structure of the central magnetic part 22. In this case, the through-hole structure of the central magnetic part 22 corresponds to and communicates with the third through-hole of the magnetic permeable yoke 21 to form the mounting hole 25.

[0047] In the sound output device 100 of the present invention, the magnetic path system 2 is provided in a rectangular structure, and the magnetic path system 2 is provided in the permeable yoke 21 and the central magnetic portion 22 and side magnetic portion 23 provided in the permeable yoke 21, so that the side magnetic portion 23 is located outside the central magnetic portion 22 and surrounds and forms a magnetic gap 24 with the central magnetic portion 22, and the vibration system 4 is provided in the diaphragm assembly 41, voice coil 42 and damper 43 facing the magnetic path system 2, so that one end of the voice coil 42 is connected to the diaphragm assembly 41. The other end of the voice coil 42 is suspended in the magnetic gap 24, and when a current flows through the voice coil 42, the voice coil 42 converts electrical energy into mechanical energy in the magnetic gap 24 formed by the magnetic path system 2, driving the voice coil 42 to vibrate the diaphragm assembly 41, thereby realizing sound emission. At the same time, the magnetic path system 2 is provided with a mounting hole 25 that penetrates the conductive magnetic yoke 21 and the central magnetic part 22, and a conductive support 3 is provided in the mounting hole 25, thereby forming a damper. One end of the damper 43 is electrically connected to the pad of the conductive support 3, and the other end of the damper 43 is connected to the diaphragm assembly 41 and is also electrically connected to the lead wire of the voice coil 42, so that the damper 43 can be attached and fixed by the conductive support 3, and the voice coil 42 can be electrically connected to an external circuit by the damper 43 and the conductive support 3. The damper 43 also effectively prevents the voice coil 42 from swinging or polarizing, improving the acoustic performance of the sound output device 100. By locating the mounting hole 25 in the center of the magnetic path system 2, where the magnetic field utilization rate of the central magnetic part 22 is not high, weight can be reduced and the conductive support 3 can be attached and fixed. Furthermore, because the damper 43 is located in the mounting hole 25 in the middle of the central magnetic part 22, the damper 43 does not occupy the installation space of the side magnetic part 23, which increases the installation volume and improves the magnetic field strength of the magnetic path system 2, further improving the BL value and improving the acoustic performance of the sound output device 100.

[0048] In one embodiment, the side magnetic portion 23 is optionally annular, in which case the annular side magnetic portion 23 is located outside the central magnetic portion 22 and spaced apart from the central magnetic portion 22 to surround and form the magnetic gap 24. Optionally, the side magnet 231 and the side washer 232 together form a closed annular structure.

[0049] Of course, in other embodiments, the side magnetic portion 23 includes a plurality of side magnetic portions 23 that are arranged around the outside of the central magnetic portion 22 and spaced apart from the central magnetic portion 22 to surround and form the magnetic gap 24. Optionally, the side magnets 231 and the side washers 232 are each provided in a one-to-one correspondence, and adjacent side magnets 231 are joined at their ends to form a closed annular structure.

[0050] In addition, in the present invention, the damper 43 is provided in the mounting hole 25 in the middle of the central magnetic portion 22, and in contrast to the conventional proposal in which the damper 43 is provided at the four corner positions of the magnetic path system 2, the damper 43 in the present invention does not occupy the installation space of the side magnetic portion 23, and there is no need to provide an accommodation space for the damper 43 between two adjacent side magnets 231, so that the side magnets 231 can be provided in a closed ring structure, thereby increasing the installation volume of the side magnets 231, improving the magnetic field strength of the magnetic path system 2, and further improving the BL value.

[0051] In one embodiment, the magnetic conductive yoke 21 is provided with a positioning table 211 adjacent to the mounting hole 25 , and the positioning table 211 is connected to the conductive support 3 .

[0052] In this embodiment, as shown in FIGS. 3 to 7, 16 and 17, a positioning table 211 is provided on the magnetic conductive yoke 21, and the positioning table 211 further realizes the functions of mounting, fixing and positioning the conductive support 3.

[0053] As can be seen, the positioning table 211 is provided adjacent to the mounting hole 25. Alternatively, the positioning table 211 may extend and protrude toward the side of the diaphragm assembly 41, or the positioning table 211 may extend and protrude away from the diaphragm assembly 41, but this is not limited thereto.

[0054] In this embodiment, the positioning table 211 is selectively positioned between the central magnetic portion 22 and the conductive support 3. As can be seen, the positioning table 211 extends and protrudes toward the diaphragm assembly 41, thereby ensuring that the side of the conductive yoke 21 opposite to the diaphragm assembly 41 is flat, making it easier to assemble the sound emitting device 100 into an electronic device. At the same time, the positioning table 211 can achieve positioning and position control functions for the central magnetic portion 22 and the conductive support 3.

[0055] 3 to 7, 16 and 17, in one embodiment, the positioning table 211 is formed by bending the side adjacent to the mounting hole 25 of the permeable yoke 21, i.e., the positioning table 211 is formed by bending the side adjacent to the third through-hole of the permeable yoke 21. As can be seen, the positioning table 211 and the permeable yoke 21 have an integrally molded structure, which can simplify the processing steps of the permeable yoke 21 and improve the structural strength of the positioning table 211. Of course, in other embodiments, the positioning table 211 and the permeable yoke 21 may be provided separately, and the positioning table 211 may be connected to the permeable yoke 21 by welding or pasting, which is not limited here.

[0056] Alternatively, the positioning table 211 may be an annular boss that surrounds the mounting hole 25. This arrangement effectively increases the contact area between the positioning table 211 and the conductive support 3, improving mounting stability. Of course, other embodiments may include multiple positioning tables 211 spaced apart along the periphery of the mounting hole 25. As can be seen, spacing two adjacent positioning tables 211 apart can reduce costs while still achieving the functions of fastening and positioning the conductive support 3.

[0057] In one embodiment, the positioning table 211 includes a first positioning portion 2111 and a second positioning portion 2112 arranged at an angle, one end of the first positioning portion 2111 away from the second positioning portion 2112 is connected to the conductive yoke 21, the second positioning portion 2112 extends in a direction away from the central magnetic portion 22, and a position control table 311 is provided on the conductive support 3, and the position control table 311 is connected to the second positioning portion 2112 in a position-controlled manner.

[0058] In this embodiment, as shown in Figures 3, 4 and 17, the positioning table 211 is provided on an inverted L-shaped mechanism so that the first positioning portion 2111 and the second positioning portion 2112 of the positioning table 211 fit together to form a position restriction step structure, and a position restriction base 311 is provided on the conductive support body 3, and the position restriction step structure formed by the fit-together of the first positioning portion 2111 and the second positioning portion 2112 realizes position restriction attachment of the conductive support body 3 to the position restriction table 311, thereby realizing attachment and fixation of the conductive support body 3, ensuring the attachment position and attachment height of the conductive support body 3, and preventing displacement of the conductive support body 3.

[0059] Optionally, the mounting hole 25 is formed as a square hole. As can be understood, the positioning table 211 includes two or four. In this embodiment, the positioning table 211 includes two positioning tables 211 arranged opposite to each other and corresponding to two opposite edges of the mounting hole 25, respectively, and is not limited here.

[0060] In one embodiment, the conductive support 3 is further provided with an undercut 312 corresponding to the positioning table 211 and for accommodating the positioning table 211 .

[0061] In this embodiment, as shown in Figures 5 to 7, 9, and 19 to 21, an escape groove 312 is provided in the conductive support 3, and the escape groove 312 is fitted into the positioning table 211 to achieve positioning and assembly, and the contact area between the conductive support 3 and the positioning table 211 is increased, improving the stability of installation.

[0062] In one embodiment, a pressure groove 212 is further provided on the opposite side of the magnetic yoke 21 from the diaphragm assembly 41, one end of which communicates with the mounting hole 25 and the other end of which extends to the periphery of the magnetic yoke 21, for retracting wiring.

[0063] In this embodiment, as shown in Figures 2, 5, 16 to 18, 25 and 27, a pressure groove 212 is provided in the magnetic permeable yoke 21, so that one end of the pressure groove 212 communicates with the mounting hole 25 and the other end of the pressure groove 212 extends to the periphery of the magnetic permeable yoke 21, thereby making it easy to use the pressure groove 212 to retract the wiring.

[0064] As can be understood, the conductive support 3 of the sound emitting device 100 is connected to an external circuit by a structure such as a conductive wiring or a flexible circuit board, and in this case, the pressure groove 212 on the side of the conductive yoke 21 opposite the diaphragm assembly 41 is used to provide a routing space for the structure such as the conductive wiring or the flexible circuit board, and to realize positioning and position-regulating attachment for the routing structure, thereby making the overall structure more compact and saving space. In this embodiment, the pressure groove 212 is recessed on the side of the conductive yoke 21 opposite the diaphragm assembly 41.

[0065] Optionally, the pressure groove 212 includes a plurality of pressure grooves spaced apart from each other. In this embodiment, one end of each of the pressure grooves 212 communicates with the mounting hole 25, and the other end of each of the pressure grooves 212 extends along the periphery of the conductive yoke 21 and is spaced apart from each other.

[0066] In order to improve the balance performance of the sound emitting device 100, the multiple pressure grooves 212 are arranged symmetrically with respect to the mounting hole 25. Of course, in other embodiments, the multiple pressure grooves 212 are selectively arranged radially around the mounting hole 25, and this is not limited thereto.

[0067] In one embodiment, a retraction notch 213 is further provided on the periphery of the magnetic conductive yoke 21 , and one end of the pressure groove 212 remote from the mounting hole 25 communicates with the retraction notch 213 .

[0068] In this embodiment, as shown in Figures 18, 25, and 27, by providing a retraction notch 213 on the periphery of the magnetic yoke 21, one end of the pressure groove 212 that is away from the mounting hole 25 is connected to the retraction notch 213, thereby enabling the retraction notch 213 to realize further positional control assembly for structures such as conductive wiring or flexible circuit boards, and realizing directional routing installation.

[0069] In one embodiment, the sound emitting device 100 further includes a connection support 5 installed in the mounting hole 25 , the connection support 5 having a fixing cavity 511 , and the conductive support 3 installed in the fixing cavity 511 .

[0070] In this embodiment, as shown in Figures 22 to 24 and 27, by providing the connection support 5, the conductive support 3 is attached and fixed in the attachment hole 25 by the connection support 5, thereby further improving the attachment stability and structural strength of the conductive support 3. Optionally, the connection support 5 is a pressed metal part. As can be seen, the shape and contour of the connection support 5 approximately corresponds to the shape and contour of the conductive support 3.

[0071] In one embodiment, a support groove 214 is formed around the mounting hole 25 on the opposite side of the magnetic yoke 21 from the diaphragm assembly 41, and the connection support 5 includes a main body 51 and a bracket 52 that surrounds the main body 51, a fixing cavity 511 is provided in the main body 51, the main body 51 is drilled into the mounting hole 25, and the bracket 52 is accommodated in the support groove 214 to regulate its position.

[0072] In this embodiment, as shown in Figures 5, 16, 18, 25 and 27, a support groove 214 is recessed on the side of the magnetic yoke 21 opposite the diaphragm assembly 41, and in this case, the mounting hole 25 penetrates the bottom wall of the support groove 214, thereby providing support and position-regulated mounting to the connection support 5 via the support groove 214.

[0073] As can be seen, the main body 51 and the bracket 52 of the connection support 5 may optionally be formed as an integral structure, thereby simplifying the processing steps for the connection support 5 and improving the structural strength of the connection support 5. Optionally, the bracket 52 may be provided around the periphery of the main body 51, so that when the main body 51 of the connection support 5 is drilled into the mounting hole 25, the bracket 52 is supported and positioned within the support groove 214. In this embodiment, the fixing cavity 511 of the connection support 5 may optionally have a cavity structure with openings at both ends, which facilitates the mounting of the conductive support 3 and the connection and conduction between the conductive support 3 and an external circuit.

[0074] In this embodiment, the pressure groove 212 on the opposite side of the diaphragm assembly 41 of the conductive yoke 21 is connected to the support groove 214, and therefore provides a positional control space when attached to a conductive wiring or flexible circuit board for connecting the conductive support 3 to an external circuit.

[0075] 22 to 24 and 27, the connection support 5 is further provided with a relief notch 53 communicating with the fixing cavity 511, and the relief notch 53 is used to retract the wiring. As can be seen, by providing the relief notch 53 in this manner, it is possible to provide an attachment and positioning control space for the conductive wiring or flexible circuit board for connecting the conductive support 3 to an external circuit, and to prevent the conductive wiring or flexible circuit board from protruding from the side opposite the diaphragm assembly 41 of the conductive yoke 21, making the overall structure more compact.

[0076] In one embodiment, a positioning protrusion and / or a positioning groove 54 is provided on the inner wall of the fixed cavity 511, a position restricting protrusion 313 is provided on the periphery of the conductive support 3, the conductive support 3 is provided in the fixed cavity 511, and the position restricting protrusion 313 is positioned and fitted into the positioning protrusion and / or the positioning groove 54.

[0077] In this embodiment, as shown in Figures 23 and 24, positioning protrusions and / or positioning grooves 54 are provided on the connection support 5, and position control protrusions 313 are provided on the periphery of the conductive support 3, and the position control protrusions 313 are positioned and fitted into the positioning protrusions and / or positioning grooves 54, thereby achieving the attachment and fixation and position control functions of the conductive support 3 and the connection support 5.

[0078] In one embodiment, the central magnetic portion 22 includes a central magnet 221 and a central washer 222 arranged in a stacked manner, the central magnet 221 being interposed between the central washer 222 and the magnetically conductive yoke 21, and the mounting hole 25 passing through the magnetically conductive yoke 21, the central magnet 221, and the central washer 222 in sequence.

[0079] In this embodiment, as shown in Figures 3, 4, 6 to 8, and 26, the central magnetic portion 22 is provided on a central magnet 221 and a central washer 222 that are stacked, so that the central magnet 221 is interposed between the central washer 222 and the magnetically conductive yoke 21, and mounting holes 25 are sequentially passed through the magnetically conductive yoke 21, the central magnet 221, and the central washer 222, thereby effectively reducing the weight of the central magnetic portion 22 by the mounting holes 25.Since the contribution of the magnet at the middle position of the central magnetic portion to the magnetic field strength is relatively small, the mounting and fixing of the conductive support 3 can be realized on the premise that the impact on the magnetic field strength is relatively small.

[0080] As can be seen, the central washer 222 forms a first through hole, the central magnet 221 forms a second through hole, the magnetically conductive yoke 21 forms a third through hole, and the first through hole, the second through hole and the third through hole correspond to each other and communicate with each other to form the mounting hole 25.

[0081] Alternatively, the central magnetic portion 22 may be provided in an annular structure such that a through-hole structure is formed in the center of the central magnetic portion 22. Of course, in other embodiments, the central magnetic portion 22 includes a plurality of bar-shaped structures that surround and form an annular structure, whereby the plurality of bar-shaped structures surround and form a through-hole structure, and the embodiments are not limited thereto.

[0082] As can be understood, the central magnet 221 is optionally arranged in an annular shape so that a second through hole is formed in the center of the central magnet 221. Of course, in other embodiments, the central magnet 221 includes a plurality of central magnets 221 that surround and form the second through hole in an annular shape. The central washer 222 is optionally arranged in an annular shape so that a first through hole is formed in the center of the central washer 222. Of course, in other embodiments, the central washer 222 includes a plurality of central washers 222 that surround and form the first through hole in annular shape, and this is not limited here.

[0083] In one embodiment, a positioning boss 315 is provided on the conductive support 3 opposite the damper 43 to be positioned and abutted on the opposite side of the central washer 222 of the central magnet 221 .

[0084] In this embodiment, as shown in Figures 8, 9, 19, and 20, by providing positioning protrusions 315 on the periphery of the conductive support body 3, when the conductive support body 3 is attached to the attachment hole 25, the positioning boss 315 is positioned and abutted on the side opposite to the central washer 222 of the central magnet 221, thereby realizing position-regulated attachment of the conductive support body 3 and improving the robustness of the assembly of the conductive support body 3.

[0085] 25 and 26, a third through hole is provided in the magnetically conductive yoke 21, and the conductive support 3 enters the sound emitting device 100 through the third through hole. Here, the conductive support 3 has a first side wall and a second side wall that are provided opposite each other, and a positioning boss 315 is provided on one of the first side wall and the second side wall, and the positioning boss 315 is positioned and abuts on the side opposite to the central washer 222 of the central magnet 221, and the other of the first side wall and the second side wall abuts or is loosely fitted against the inner wall of the third through hole.

[0086] In one embodiment, the central magnetic portion 22 further includes an auxiliary magnet 224 that is disposed within the mounting hole 25 and is located between the central magnet 221 and the conductive support 3, and at least a portion of which corresponds to the damper 43.

[0087] In this embodiment, as shown in Figures 6, 7 and 26, by providing an auxiliary magnet 224, the auxiliary magnet 224 is provided on the magnetically conductive yoke 21 and is located between the central magnet 221 and the conductive support 3, thereby effectively increasing the magnet volume of the central magnetic part 22 and improving the magnetic field strength of the magnetic field to a certain extent, so that the auxiliary magnet 224 can fully utilize the space within the mounting hole 25 of the central magnetic part 22 and improve the acoustic performance.

[0088] As can be seen, the installation of the auxiliary magnet 224 increases the magnet volume of the central magnetic part 22 and can improve acoustic performance, and at least a portion of the auxiliary magnet 224 is provided corresponding to the damper 43, and the height difference between the auxiliary magnet 224 and the central washer 222 of the central magnetic part 22 provides a retreat space or vibration space for the damper 43. Optionally, the distance between the auxiliary magnet 224 and the diaphragm assembly 41 is greater than the distance between the central magnet 221 and the diaphragm assembly 41. This can effectively ensure the vibration space for the damper 43.

[0089] Optionally, the auxiliary magnet 224 and the central magnet 221 are a one-piece structure. Of course, in other embodiments, the auxiliary magnet 224 is adhesively connected to the central magnet 221, which is not limited here.

[0090] In this embodiment, the auxiliary magnet 224 is arranged in an annular shape, i.e., the annular auxiliary magnet 224 is arranged to surround the conductive support 3. In this case, the central magnet 221 of the central magnetic portion 22 is connected to the auxiliary magnet 224, so that the auxiliary magnet 224 forms a circumferential shape with the mounting hole 25. Of course, in other embodiments, the auxiliary magnet 224 includes a plurality of auxiliary magnets 224 arranged at intervals and arranged to surround the conductive support 3. Optionally, the auxiliary magnet 224 may include two or four, etc., and the number is not limited here.

[0091] In one embodiment, mounting grooves 314 are provided on the side of the central magnet 221 and / or the conductive support 3 facing the auxiliary magnets 224 , and at least a part of the auxiliary magnets 224 is positioned within the mounting grooves 314 .

[0092] In this embodiment, as shown in Figures 6, 7, and 19 to 21, by providing mounting grooves 314 in the central magnet 221 and / or the conductive support 3, the auxiliary magnets 224 are attached and fixed by the mounting grooves 314, thereby realizing the attachment, fixing and position control functions of the auxiliary magnets 224 and improving the stability of the attachment.

[0093] As can be appreciated, the mounting groove 314 may be provided on the side of the central magnet 221 facing the auxiliary magnet 224, or the mounting groove 314 may be provided on the side of the conductive support 3 facing the auxiliary magnet 224, or the mounting groove 314 may be provided on both the side of the central magnet 221 facing the auxiliary magnet 224 and the side of the conductive support 3 facing the auxiliary magnet 224.

[0094] In one embodiment, some of the central washers 222 are recessed away from the diaphragm assembly 41, with one end communicating with the mounting hole 25 and the other end extending to the periphery of the central washer 222, forming a recessed area 223 that corresponds to the lead wires of the voice coil 42 and / or the damper 43.

[0095] In this embodiment, as shown in Figures 3, 4, 6, 7 and 15, a retreat area 223 is provided in the central washer 222, so that one end of the retreat area 223 is connected to the mounting hole 25 and the other end of the retreat area 223 extends to the periphery of the central washer 222, and the retreat area 223 is provided corresponding to the lead wire of the voice coil 42 and / or the damper 43, so that the retreat area 223 provides a retreat space for the vibration of the lead wire of the voice coil 42 and / or the damper 43.

[0096] As can be understood, the recessed area 223 may be a through-hole or a notch structure that penetrates the central washer 222. Of course, the recessed area 223 may also be a recessed groove structure formed by recessing the central washer 222 in a direction away from the diaphragm assembly 41, and is not limited thereto.

[0097] In one embodiment, the conductive support 3 has a first welding surface 316 facing the damper 43 and connected to the damper 43, and a second welding surface 317 for connecting to an external power source, where the first welding surface 316 is not higher than the surface of the central magnetic portion 22 facing the diaphragm assembly 41.

[0098] In this embodiment, as shown in Figures 2 to 11 and Figures 19 to 23, a first welding surface 316 is formed on the side of the conductive support body 3 facing the damper 43, and a second welding surface 317 is further provided on the side of the conductive support body 3 opposite the first welding surface 316, so that the first welding surface 316 can be connected and conducted to the damper 43, and the second welding surface 317 is used to connect to an external power source, so that the conductive support body 3 connects and conducts between the external circuit and the damper 43 and supplies power to the voice coil 42.

[0099] Optionally, the first welding surface 316 is not higher than the surface of the central magnetic part 22 facing the diaphragm assembly 41. As can be understood, this arrangement makes it easier to install the damper 43 without affecting the diaphragm assembly 41, and ensures sufficient vibration space during the vibration process of the damper 43.

[0100] In one embodiment, the conductive support 3 is provided on the side opposite the first welding surface 316 with a recessed groove 318 whose bottom wall forms a second welding surface 317 .

[0101] In this embodiment, as shown in Figures 2, 4, 5, 7 to 9, 20 to 22, and 25 to 27, a groove 318 is provided on the side opposite to the first welding surface 316 of the conductive support 3, and the bottom wall of the groove 318 forms the second welding surface 317, thereby providing an attachment space for the conductive wiring or flexible circuit board for connecting the conductive support 3 and protecting the conductive wiring or flexible circuit board.

[0102] In one embodiment, the conductive support 3 includes a body member 31 and a land piece 32 including a first pad portion 321 and a second pad portion 322 that are fitted into and connected to the body member 31, with at least a portion of the first pad portion 321 exposed to the first welding surface 316 and at least a portion of the second pad portion 322 exposed to the second welding surface 317.

[0103] 4, 6 to 9, and 9 to 23, the main body member 31 of the conductive support 3 may be a plastic member, the land piece 32 may optionally be a metal conductive member, and the land piece 32 of the conductive support 3 and the main body member 31 may be integrally formed by injection molding. As can be seen, the land piece 32 is provided on the first pad portion 321 and the second pad portion 322 to be connected such that at least a portion of the first pad portion 321 is exposed to the first welding surface 316 and at least a portion of the second pad portion 322 is exposed to the second welding surface 317, thereby facilitating the connection and conduction between the damper 43 and the first pad portion 321 on the first welding surface 316, and the conductive wiring or flexible circuit board connected to an external circuit is connected and conducted to the second pad portion 322 on the second welding surface 317, thereby smoothly conducting the external current to the voice coil 42 via the conductive support 3 and the damper 43.

[0104] As can be seen, two first pads 323 are provided on the first welding surface 316. In this embodiment, the first pad portion 321 of the land piece 32 forms two first pads 323 that are exposed to the first welding surface 316 and spaced apart. Alternatively, the two first pads 323 may be arranged at an interval along the long axis direction of the magnetic path system 2, or the two first pads 323 may be arranged at an interval along the short axis direction of the magnetic path system 2.

[0105] 11, the two first pads 323 are arranged at an interval along the long axis direction of the magnetic path system 2, and in this case, the two dampers 43 are arranged along the long axis direction of the magnetic path system 2 and are each electrically connected to the two first pads 323. As shown in Fig. 10, the two first pads 323 are arranged at an interval along the short axis direction of the magnetic path system 2, and in this case, the two dampers 43 are arranged along the long axis direction of the magnetic path system 2 and are each electrically connected to the two first pads 323.

[0106] As can be seen, two second pads 324 are provided on the second welding surface 317, and in this embodiment, the second pad portion 322 of the land piece 32 forms two second pads 324 that are exposed to and spaced apart from each other on the second welding surface 317. Alternatively, the two second pads 324 are arranged at an interval along the long axis direction of the magnetic path system 2, or the two second pads 324 are arranged at an interval along the short axis direction of the magnetic path system 2.

[0107] In one embodiment, the damper 43 includes a plurality of dampers 43, each having one end connected to the conductive support 3 and the other end connected to the diaphragm assembly 41, and each electrically connected to the lead wire of the voice coil 42.

[0108] 3, 4, 6, 7, 9 to 11, and 14, a plurality of dampers 43 are provided, whereby one end of each of the dampers 43 is connected to the conductive support 3, and the other end of each of the dampers 43 is connected to the diaphragm assembly 41 and is electrically connected to the lead wire of the voice coil 42. Optionally, the plurality of dampers 43 are distributed symmetrically along the major axis direction and / or the minor axis direction of the magnetic path system 2.

[0109] Alternatively, the dampers 43 may include two or four, and by arranging them in this manner, the dampers 43 can connect and conduct the conductive support 3 and the voice coil 42, while also ensuring the vibration balance of the sound emission device 100.

[0110] As can be understood, when there are two dampers 43, the two dampers 43 are arranged at an interval along the long axis direction of the magnetic path system 2, or the two dampers 43 are arranged at an interval along the short axis direction of the magnetic path system 2, and this is not a limitation. Of course, when there are four dampers 43, the two dampers 43 are arranged at an interval along the long axis direction of the magnetic path system 2, and the two dampers 43 are arranged at an interval along the short axis direction of the magnetic path system 2, and this is not a limitation.

[0111] In one embodiment, each damper 43 includes, connected in sequence, a first connection portion 431 connected to the diaphragm assembly 41 and electrically connected to the lead wire of the voice coil 42, an elastic arm 432, and a second connection portion 433 connected to the conductive support 3.

[0112] In this embodiment, as shown in Figures 3, 4, 6, 7, 9 to 11, and 14, the first connecting portion 431, the elastic arm 432, and the second connecting portion 433 of the damper 43 are selectively formed as an integral structure. In this way, the structural strength of the damper 43 can be effectively ensured, and the processing steps for the damper 43 can be simplified.

[0113] As can be seen, the elastic arm 432 has at least one bent portion to ensure the deformation ability of the damper 43. In this embodiment, a vibration space 33 for retracting the damper 43 is formed between the conductive support 3 and the inner wall of the mounting hole 25. In this way, it is possible to ensure that there is sufficient vibration space when the damper 43 vibrates together with the voice coil 42, and to avoid interference or influence on other components.

[0114] 14 , the first connecting portion 431 and the second connecting portion 433 are located on different planes. As can be seen, the plane on which the first connecting portion 431 is located and the plane on which the second connecting portion 433 is located have a difference in height in the vibration direction of the voice coil 42. By arranging the first connecting portion 431 and the second connecting portion 433 of the damper 43 on different planes, the connection between the first connecting portion 431 of the damper 43 and the frame 412 of the diaphragm assembly 41 is facilitated, the welding connection with the lead wire of the voice coil 42 is smoothed, and interference with the central washer 222 of the central magnetic portion 22 during the vibration process of the damper 43 is avoided, thereby reducing the size of the retraction area 223 provided in the central magnetic portion 22. At the same time, the damper 43 realizes the connection between the conductive support 3 and the diaphragm assembly 41, and the damper 43 effectively prevents problems such as oscillation or polarization during vibration of the voice coil 42.

[0115] In one embodiment, the diaphragm assembly 41 includes a diaphragm 411 that is arranged opposite the magnetic path system 2 and has an inner annular hole 4114 in the center, a skeleton 412 that is arranged in the inner annular hole 4114 and connected to the diaphragm 411, has a damper 43 connected thereto, and has an assembly hole 4121 that corresponds to the conductive support 3, and a dome 413 that covers the assembly hole 4121, and here the voice coil 42 is connected to the diaphragm 411 or the skeleton 412.

[0116] 1, 3, 4, and 6 to 13, diaphragm assembly 41 is provided in a three-part structure consisting of diaphragm 411, skeleton 412, and dome 413. This allows the periphery of diaphragm 411 to be connected to housing 1, and an inner annular hole 4114 to be formed in the center of the diaphragm. Skeleton 412 is provided in inner annular hole 4114, allowing voice coil 42 and damper 43 to be connected and fixed by skeleton 412, improving installation stability. At the same time, assembly hole 4121 is provided in skeleton 412 corresponding to conductive support 3, allowing damper 43 to be easily attached and fixed by assembly hole 4121, connecting and fixing damper 43 to conductive support 3 and skeleton 412, improving installation convenience.

[0117] As can be understood, by providing a dome 413 in the assembly hole 4121 to seal the assembly hole 4121, the dome 413 is placed over the assembly hole 4121, and the dome 413 can seal the assembly hole 4121 while ensuring the vibration performance of the diaphragm assembly 41.

[0118] In one embodiment, as shown in Figures 1, 3, 4, and 6 to 8, the diaphragm 411 includes a corrugated portion 4111, a fixed portion 4112 connected to the outside of the corrugated portion 4111, and an inner ring portion 4113 connected to the inside of the corrugated portion 4111, the inner ring portion 4113 forming an inner ring hole 4114, and the periphery of the skeleton 412 is connected to the inner ring portion 4113 and is located between the voice coil 42 and the inner ring portion 4113.

[0119] As can be seen, the fixed portion 4112, the corrugated portion 4111, and the inner ring portion 4113 of the diaphragm 411 are connected in this order as an integrally molded structure, thereby ensuring the vibration performance and structural strength of the diaphragm 411.

[0120] 3 to 4, 6 to 8, and 10 to 12, skeleton 412 is provided with a storage groove 4122 that surrounds assembly hole 4121, and dome 413 is positioned within storage groove 4122. As can be seen, by providing storage groove 4122 on the side of skeleton 412 opposite voice coil 42 and by providing storage groove 4122 that surrounds assembly hole 4121, storage groove 4122 can facilitate attachment and storage of dome 413 and ensure that the upper surface of dome 413 is flush with the upper surface of skeleton 412. As a result, the height of vibration system 4 of sound emitting device 100 along the vibration direction can be reduced and the vibration performance of the entire diaphragm assembly 41 can be ensured.

[0121] Optionally, a step surface 4123 is formed on the periphery of the skeleton 412, positioned between the voice coil 42 and the diaphragm 411, and the side of the diaphragm 411 adjacent to the inner annular hole 4114 is supported and connected to the step surface 4123.

[0122] In this embodiment, as shown in Figures 3 to 4, 6 to 8, and 10 to 12, a step surface 4123 is provided on the periphery of skeleton 412 so that the side of step surface 4123 facing voice coil 42 is concave.By doing so, when inner ring portion 4113 of diaphragm 411 is lap-supported by step surface 4123 of skeleton 412, the upper surface of inner ring portion 4113 of diaphragm 411 and the upper surface of skeleton 412 are arranged to be flush with each other, thereby making the assembled structure more compact and ensuring the vibration performance of the entire diaphragm assembly 41.

[0123] In one embodiment, the skeleton 412 further includes a connection table 4124 adjacent to the assembly hole 4121 and extending into the mounting hole 25, and one end of the damper 43 away from the conductive support 3 is connected to the connection table 4124.

[0124] 3 to 4, 6 to 8, and 10 to 13, by providing a connecting table 4124 on the frame 412, the connecting table 4124 extends into the mounting hole 25, thereby further fixing the damper 43 and improving the connection stability of the damper 43. As can be seen, there is a gap between the diaphragm assembly 41 and the central magnetic portion 22 to define the vibration space 33, and therefore the top surface of the damper 43 does not exceed the top surface of the central magnetic portion 22. Therefore, there is a height difference between the damper 43 and the diaphragm assembly 41 along the vibration direction of the vibration system 4. Therefore, by providing the connecting table 4124 extending into the mounting hole 25, the connecting table 4124 can extend in the plane where the damper 43 is located and be connected to the damper 43, thereby facilitating assembly.

[0125] Of course, as can be understood, one end of the damper 43 away from the conductive support 3 extends in a direction adjacent to the diaphragm assembly 41, thereby serving the effect of facilitating assembly of the damper 43 and the diaphragm assembly 41.

[0126] Alternatively, the connecting table 4124 may be formed by bending or stretching the side adjacent to the assembly hole 4121 of the skeleton 412. For example, the connecting table 4124 may be formed as a vertically extending structure in which the side wall adjacent to the assembly hole 4121 of the skeleton 412 extends along the vibration direction (vertical direction) of the vibration system 4. By providing the connecting table 4124 in this manner, the structural strength and processing convenience of the connecting table 4124 can be effectively improved. Of course, in other embodiments, the connecting table 4124 and the skeleton 412 may be provided separately and connected as an integral structure by welding or adhesive, and this is not limited thereto.

[0127] Optionally, the connection table 4124 is an annular boss provided around the assembly hole 4121. As can be understood, the annular connection table 4124 can facilitate the connection and fixation of multiple dampers 43, improving installation convenience. Of course, in other embodiments, the connection table 4124 includes multiple connection tables 4124 provided at intervals along the periphery of the assembly hole 4121. Optionally, the connection table 4124 includes two connection tables 4124 provided corresponding to the major axis direction or the minor axis direction of the magnetic path system 2, respectively.

[0128] In one embodiment, the connection table 4124 includes a first connection arm 4125 and a second connection arm 4126 that are arranged to form an angle, one end of the first connection arm 4125 that is away from the second connection arm 4126 is connected to the inner wall of the assembly hole 4121, the second connection arm 4126 extends in a direction away from the skeleton 412, and one end of the damper 43 that is away from the conductive support 3 is connected to the second connection arm 4126, the first connection arm 4125, and the skeleton 412. In this embodiment, as shown in FIGS. 3, 4, 6 to 9, 12, and 13, the connection table 4124 is provided on the first connection arm 4125 and the second connection arm 4126 that are arranged to form an angle, that is, the first connection arm 4125 and the second connection arm 4126 are arranged in an L-shape, thereby further increasing the contact area with the damper 43 and improving the stability of the installation.

[0129] Optionally, since the shape and structure of the first connection portion 431 of the damper 43 is similar to the shape and structure of the connection table 4124, it can be positioned on the damper 43 by the second connection arm 4126, and can be connected and fixed to the L-shaped first connection portion 431 by the first connection arm 4125 and the second connection arm 4126, thereby guiding the first connection portion 431 to the opposite side of the dome 413 of the skeleton 412 and facilitating the connection and fixation of the lead wire of the voice coil 42 to the first connection portion 431, which is not limited here.

[0130] In one embodiment, as shown in Figures 9 and 13, the connection table 4124 further includes two arcuate side walls respectively provided on both sides of the first connection arm 4125 and connected to the second connection arm 4126 and the inner wall of the assembly hole 4121, whereby the first connection arm 4125, the second connection arm 4126 and the two arcuate side walls surround and form an arcuate groove.

[0131] As can be seen, when the connecting table 4124 is formed in a tensioning manner, it can be formed into a semi-concave structure, so that the first connecting arm 4125 and the second connecting arm 4126 of the connecting table 4124 both have arc-shaped side walls on both sides. Optionally, the first connecting arm 4125 and the inner wall of the assembly hole 4121 are connected with a smooth transition. Optionally, the first connecting arm 4125 and the second connecting arm 4126 are connected with a smooth transition.

[0132] The specific structural design of the connection table 4124 is not limited to the case described above, but rather may be such that it can realize the attachment and fixation of the damper 43, and the present invention is not specifically limited thereto.

[0133] 2 to 7, 16 to 18, 25, and 27, positioning posts 11 are provided on the peripheral edge of the housing 1 opposite the diaphragm assembly 41, and the magnetic yoke 21 is provided with positioning notches 215 corresponding to the positioning posts 11, and the positioning posts 11 are positioned and fitted into the positioning notches 215. As can be seen, by providing the positioning posts 11 on the housing 1 and forming the positioning notches 215 on the magnetic yoke 21 that are positioned and fitted into the positioning posts 11, the positioning, installation, and fitting of the magnetic path system 2 is achieved, and the convenience and accuracy of installation are improved.

[0134] In this embodiment, as shown in Figures 3, 4, 6 to 8, and 26, the side magnetic portion 23 includes a side magnet 231 and a side washer 232 that are stacked together, the side magnet 231 being interposed between the side washer 232 and the magnetically conductive yoke 21, and the side washer 232 being connected to the housing 1. Optionally, the side washer 232 and the housing 1 have an integrally molded structure, which can simplify the structure and improve the stability of the attachment.

[0135] As shown in Figures 25 to 27, the present invention further proposes a sound emitting module 700, which includes the above-mentioned sound emitting device 100. The specific structure of the sound emitting device 100 refers to the above-mentioned embodiments. The sound emitting module 700 adopts all the technical solutions of all the above-mentioned embodiments, and therefore has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be further described here.

[0136] In one embodiment, the sound emitting module 700 further includes a flexible circuit board 600, one end of which is electrically connected to the conductive support 3 of the sound emitting device 100 and the other end of which is for connecting to an external power source.

[0137] As can be seen, the flexible circuit board 600 is used to electrically connect an external circuit to the sound emitting device 100. The flexible circuit board 600 is provided with an inner pad electrically connected to the second welding surface 317 of the conductive support 3 of the sound emitting device 100, and an outer pad for connecting to an external terminal.

[0138] In this embodiment, the sound emitting module 700 further includes a module housing having a cavity, the sound emitting device 100 is disposed in the cavity of the module housing, and at least one end of the flexible circuit board 600 connected to the sound emitting device 100 is located in the cavity of the module housing. Of course, in other embodiments, the flexible circuit board 600 may be entirely disposed in the cavity of the module housing, and this is not limited thereto.

[0139] In one embodiment, a positioning lug 610 is provided at one end of the flexible circuit board 600 adjacent to the conductive support 3, and the conductive support 3 is formed with a positioning sidewall that fits into the positioning lug 610.

[0140] In this embodiment, as shown in FIG. 25 , by providing a positioning lug 610 on the flexible circuit board 600 and abutting the positioning lug 610 against the positioning side wall of the conductive support body 3 to restrict positioning, it is possible to achieve connection and conduction between the flexible circuit board 600 and the second welding surface 317 of the conductive support body 3, and to avoid problems such as an insufficient connection between the flexible circuit board 600 and the second welding surface 317 of the conductive support body 3 when the flexible circuit board 600 is displaced.

[0141] Furthermore, in order to achieve position-controlled mounting of the flexible circuit board 600, in one embodiment, as shown in Figures 9, 20, 22 and 27, the conductive support 3 is further provided with a concession notch 319 corresponding to the flexible circuit board 600. As can be seen, the flexible circuit board 600 sequentially passes through the concession notch 319 (relief notch 53) and the pressure groove 212 (retraction notch 213). That is, the concession notch 319 (relief notch 53) and the pressure groove 212 (retraction notch 213) can achieve position-controlled mounting of the flexible circuit board 600, make the fitting structure between the flexible circuit board 600 and the sound emitting device 100 simpler and more compact, and can guide the flexible circuit board 600.

[0142] The present invention further proposes an electronic device including the above-mentioned sound emitting device 100. The specific structure of the sound emitting device 100 refers to the above-mentioned embodiments, and since the electronic device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, so no further description will be given here.

[0143] In this embodiment, the electronic device further includes a device housing, and the sound emitting device 100 and the flexible circuit board 600 are both disposed within the device housing. As can be understood, the electronic device may be an earphone, a mobile phone, a computer, a tablet terminal, a smart wearable device, etc., and is not limited thereto.

[0144] The present invention further proposes an electronic device including the above-mentioned sound emitting module 700. The specific structure of the sound emitting module 700 refers to the above-mentioned embodiments, and since this electronic device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, so no further description will be given here.

[0145] As can be understood, the electronic device may be, but is not limited to, an earphone, a mobile phone, a computer, a tablet, a smart wearable device, etc. In this embodiment, the electronic device further includes a device housing, and the module 700 is disposed in the device housing.

[0146] The above description is merely a selective embodiment of the present invention and does not limit the patent scope of the present invention. Equivalent structural transformations made using the contents of the specification and accompanying drawings of the present invention under the concept of the present invention, or directly / indirectly applied to other related technical fields, are all included in the patent protection scope of the present invention. [Explanation of symbols]

[0147] 100 Sound emitting device 1. Housing 11 Positioning post 2 Magnetic path system 21 Conductive yoke 211 Positioning table 2111 First positioning unit 2112 Second positioning part 212 Pressure groove 213 Retreat notch 214 Support groove 215 Positioning notch 22 Central magnetic part 221 Center magnet 222 Center washer 223 Evacuation area 224 Auxiliary Magnet 23 Side magnetic part 231 Side Magnet 232 Side washer 24 Magnetic Gap 25 Mounting holes 3. Conductive support 31 Main body member 311 Location Restriction Table 312 Relief groove 313 Position regulating protrusion 314 Mounting groove 315 Positioning boss 316 First welding surface 317 Second welding surface 318 Groove 319 Concession Cutout 32 Land Pieces 321 First pad section 322 Second pad section 323 First Pad 324 Second Pad 33 Vibration Space 4. Vibration System 41 Diaphragm Assembly 411 Diaphragm 4111 Corrugated part 4112 Fixed part 4113 Inner Ring 4114 Inner annular foramen 412 Skeleton 4121 Assembly hole 4122 Storage groove 4123 Step surface 4124 Connection Table 4125 First connecting arm 4126 Second connecting arm 413 Dome 42 voice coil 43 Damper 431 First Connection 432 Elastic Arm 433 Second Connection 5 Connection support 51 Main body 511 Fixed Cavity 52 Bracket 53 Relief notch 54 Positioning groove 600 Flexible Circuit Board 610 Locating lug 700 Sound Emission Module

Claims

1. a magnetic path system having a rectangular shape, the magnetic path system including a permeable yoke, and a central magnetic portion and a side magnetic portion provided on the permeable yoke, the side magnetic portions being located outside the central magnetic portion and surrounding and forming a magnetic gap with the central magnetic portion, the magnetic path system being provided with an attachment hole penetrating the permeable yoke and the central magnetic portion; a conductive support provided in the mounting hole; a vibration system including a diaphragm assembly facing the magnetic path system, a voice coil having one end connected to the diaphragm assembly and the other end suspended in the magnetic gap, and a damper having one end electrically connected to a pad on the conductive support and the other end connected to the diaphragm assembly and electrically connected to a lead wire of the voice coil.

2. the side magnetic portion includes a side magnet and a side washer provided on the side magnet, The sound output device according to claim 1, characterized in that the side magnets and the side washers each form a closed annular structure, or that there are multiple side magnets and multiple side washers each and they are arranged in a one-to-one correspondence, and the ends of adjacent side magnets are joined to form the closed annular structure.

3. 2. The sound emitting device according to claim 1, wherein the conductive yoke is provided with a positioning table adjacent to the mounting hole and connected to the conductive support.

4. the positioning table is formed by being bent on a side of the magnetic conductive yoke adjacent to the mounting hole, and / or the positioning table is an annular boss provided around the mounting hole, or the positioning table includes a plurality of the positioning tables provided at intervals along the periphery of the mounting hole; and / or the positioning table is located between the central magnetic portion and the conductive support; and / or the positioning table includes a first positioning portion and a second positioning portion that are arranged to form an angle, one end of the first positioning portion that is away from the second positioning portion is connected to the conductive yoke, the second positioning portion extends in a direction away from the central magnetic portion, and the conductive support is provided with a position regulating table that is connected to the second positioning portion and that regulates its position; 4. The sound emitting device according to claim 3, wherein the conductive support body is further provided with a recess groove corresponding to the positioning table and adapted to accommodate the positioning table.

5. The sound output device of claim 1, further comprising a pressure groove on the opposite side of the conductive yoke from the diaphragm assembly, one end of which communicates with the mounting hole and the other end of which extends to the periphery of the conductive yoke, for retracting wiring.

6. the pressure grooves include a plurality of pressure grooves that are spaced apart, are symmetrical with respect to the mounting hole, and are radially arranged around the mounting hole; and / or a recessed notch is further provided on the periphery of the magnetic conductive yoke, and one end of the pressure groove remote from the mounting hole communicates with the recessed notch.

7. The sound emitting device further includes a connection support provided in the mounting hole, the connection support having a fixing cavity, and the conductive support provided in the fixing cavity; 2. The sound output device according to claim 1, wherein a support groove is formed around the mounting hole on the opposite side of the conductive yoke from the diaphragm assembly, the connection support includes a main body and a bracket that surrounds the main body, the main body is provided with the fixing cavity, the main body is drilled into the mounting hole, and the bracket is housed in the support groove to restrict its position, and / or the connection support is further provided with an escape notch that communicates with the fixing cavity, the escape notch being used to retract wiring, and / or a positioning protrusion and / or a positioning groove is provided on the inner wall of the fixing cavity, a position restricting protrusion is provided on the periphery of the conductive support, the conductive support is provided in the fixing cavity, and the position restricting protrusion is positioned and fitted into the positioning protrusion and / or the positioning groove, and / or the connection support is a metal pressed product.

8. the central magnetic portion includes a central magnet and a central washer that are stacked, the central magnet is interposed between the central washer and the magnetically conductive yoke, and the mounting hole passes through the magnetically conductive yoke, the central magnet, and the central washer in this order; The sound output device according to claim 1, wherein the central magnetic portion further includes an auxiliary magnet that is disposed within the mounting hole and is located between the central magnet and the conductive support, and at least a portion of which corresponds to the damper.

9. The auxiliary magnet and the central magnet are integrally molded, or the auxiliary magnet is adhesively connected to the central magnet; and / or the distance between the auxiliary magnet and the diaphragm assembly is greater than the distance between the central magnet and the diaphragm assembly; and / or the auxiliary magnet is provided in an annular shape, or the auxiliary magnet includes a plurality of auxiliary magnets provided at intervals and arranged so as to surround the conductive support; And / or, a mounting groove is provided on the side of the central magnet and / or the conductive support facing the auxiliary magnet, and at least a portion of the auxiliary magnet is positioned within the mounting groove.

10. a portion of the central washer is recessed in a direction away from the diaphragm assembly, one end of the central washer communicates with the mounting hole, and the other end of the central washer extends to a periphery thereof, forming a recessed area corresponding to the lead wire of the voice coil and / or the damper; and / or the central magnet is provided in an annular shape, or the central magnet includes a plurality of central magnets that surround and form the mounting hole in an annular shape; and / or the central washer is provided in an annular shape, or the central washer includes a plurality of central washers that surround and form the mounting hole in an annular shape; And / or, a positioning boss is provided on the conductive support opposite the damper, which is positioned and abuts on the central magnet opposite the central washer.

11. The conductive support has a first welding surface facing the damper and connected to the damper, and a second welding surface for connecting to an external power source, 2. The sound emitting device according to claim 1, wherein the first welding surface is not higher than the surface of the central magnetic portion facing the diaphragm assembly.

12. a recessed groove having a bottom wall that forms the second welding surface is provided on the opposite side of the conductive support from the first welding surface; And / or the conductive support includes a main body member and a land piece including a first pad portion and a second pad portion that are fitted into and connected to the main body member, wherein at least a portion of the first pad portion is exposed to the first welding surface, and at least a portion of the second pad portion is exposed to the second welding surface.

13. the dampers include a plurality of dampers, each having one end connected to the conductive support and the other end connected to the diaphragm assembly, and each electrically connected to a lead wire of the voice coil; 2. The sound output device according to claim 1, wherein each of the dampers includes, connected in sequence, a first connection portion connected to the diaphragm assembly and electrically connected to a lead wire of the voice coil, an elastic arm, and a second connection portion connected to the conductive support.

14. the plurality of dampers are distributed symmetrically along the major axis direction and / or the minor axis direction of the magnetic path system; and / or the first connection portion and the second connection portion are located in different planes; and / or the first connecting portion, the elastic arm, and the second connecting portion are integrally molded, and / or the elastic arm has at least one bent portion; 14. The sound emitting device according to claim 13, further comprising: a vibration space for retracting the damper formed between the conductive support body and an inner wall of the mounting hole.

15. The diaphragm assembly includes: a diaphragm provided opposite the magnetic path system and having an inner annular hole at its center; a skeleton, the skeleton being provided in the inner annular hole and connected to the diaphragm, the damper being connected to the skeleton, and the skeleton having an assembly hole corresponding to the conductive support; a dome that covers the assembly hole, The sound emitting device according to any one of claims 1 to 14, wherein the voice coil is connected to the diaphragm or the skeleton.

16. the diaphragm includes a corrugated portion, a fixing portion connected to an outer side of the corrugated portion, and an inner ring portion connected to an inner side of the corrugated portion, the inner ring portion forming the inner ring hole, a periphery of the skeleton being connected to the inner ring portion and being located between the voice coil and the inner ring portion, and / or the framework is provided with a storage groove surrounding the assembly hole, and the dome is positioned within the storage groove; And / or, a step surface is formed on the periphery of the skeleton, which is located between the voice coil and the diaphragm, and the side of the diaphragm adjacent to the inner annular hole is supported and connected to the step surface.

17. 16. The sound output device according to claim 15, wherein the skeleton is further provided with a connection table adjacent to the assembly hole and extending into the mounting hole, and one end of the damper remote from the conductive support is connected to the connection table.

18. The connecting table is formed by bending or stretching the side of the framework adjacent to the assembly hole; and / or the connection table is an annular boss provided around the assembly hole, or the connection table includes a plurality of connection tables provided at intervals along the periphery of the assembly hole, or the connection table includes two connection tables provided corresponding to the major axis direction or the minor axis direction of the magnetic path system, and / or the connection table includes a first connection arm and a second connection arm arranged at an angle, an end of the first connection arm away from the second connection arm is connected to an inner wall of the assembly hole, the second connection arm extends in a direction away from the skeleton, and an end of the damper away from the conductive support is connected to the second connection arm, the first connection arm, and the skeleton.

19. A sound emitting module, A module housing; a sound emitting device according to any one of claims 1 to 18 provided in the module housing; a flexible circuit board having one end electrically connected to the conductive support of the sound emitting device and the other end for connection to an external power source.

20. a positioning lug is provided at one end of the flexible circuit board adjacent to the conductive support, and a positioning side wall is formed on the conductive support to be fitted into the positioning lug; 20. The sound emitting module according to claim 19, wherein the conductive support further comprises a concave cutout corresponding to the flexible circuit board.

21. An electronic device comprising the sound emitting device according to any one of claims 1 to 18, Alternatively, the electronic device includes the sound emitting module according to claim 19 or 20.

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