Sound emission devices, sound emission modules, and electronic equipment

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 particularly relates to a sound emitting device, a sound emitting module applying the sound emitting device, and an electronic device.

Background Art

[0002] In recent years, with the rapid development of consumer electronic products, electronic devices such as smartphones and VR devices have been recognized by consumers and widely applied. In order to meet the performance requirements of electronic products and satisfy consumers' needs for product performance, related accessory products such as earphones have also been improved accordingly.

[0003] The sound emitting device is an important electroacoustic conversion component in consumer electronic products and is widely applied as a speaker, a receiver, an earphone, etc. With the improvement of the performance of electronic products, the improvement of the acoustic performance of the sound emitting device has also become an inevitable trend. In order to meet better acoustic performance, the sound emitting device often needs to have a larger size and a magnetic circuit system with a stronger magnetic field intensity.

[0004] In related technologies, the sound emitting device generally adopts a damper structure. By providing the damper at the four corners or the short axis of the sound emitting device, a part of the space of the magnetic circuit system is occupied, and the size of the side magnet of the magnetic circuit system is restricted and cannot be enlarged. Therefore, the magnetic field intensity of the magnetic circuit system is reduced, the BL value is reduced, and the acoustic performance of the sound emitting device is affected.

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a sound emitting device, a sound emitting module, and an electronic device that can effectively enlarge the magnetic circuit, effectively improve the magnetic field intensity, increase the BL value, and thus improve the acoustic performance.

Means for Solving the Problems

[0006] To achieve the above objective, the present invention proposes a sound emission device, and the sound emission device is A magnetic circuit system provided in a rectangular shape, including a magnetic yoke and a central magnetic portion and side magnetic portions provided on the magnetic yoke, wherein the side magnetic portions are located outside the central magnetic portion and form a magnetic gap surrounding the central magnetic portion, and the magnetic circuit system is provided with mounting holes that penetrate the magnetic yoke and the central magnetic portion. A conductive support provided within the mounting hole, The vibration system includes a diaphragm assembly facing the magnetic circuit system, a voice coil with one end connected to the diaphragm assembly and the other end suspended within the magnetic gap, and a damper with one end electrically connected to a pad of the conductive support and the other end connected to the diaphragm assembly and electrically connected to the lead wires of the voice coil.

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

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

[0009] In one embodiment, the positioning table is formed by bending the magnetic yoke on the side adjacent to the mounting hole, And / or, the positioning table is an annular boss provided so as to encircle the mounting hole, or the positioning table includes a plurality of 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 arranged at an angle, one end of the first positioning portion away from the second positioning portion is connected to the magnetic yoke, the second positioning portion extends away from the central magnetic portion, and the conductive support is provided with a positioning table connected to the second positioning portion in a positioning manner, And / or, the conductive support is further provided with a relief groove corresponding to the positioning table, in which the positioning table is housed.

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

[0011] In one embodiment, the pressure grooves are provided at intervals, are provided symmetrically with respect to the mounting holes, and include a plurality of pressure grooves provided radially around the mounting holes. And / or, a retractable notch is further provided on the periphery of the magnetic yoke, and one end of the pressure groove away from the mounting hole communicates with the retractable notch.

[0012] In one embodiment, the sound emission device further includes a connecting support provided in the mounting hole, the connecting support being provided with a fixed cavity, and the conductive support being provided within the fixed cavity. On the side of the magnetic yoke opposite to the diaphragm assembly, a support groove is formed around the mounting hole, and the connecting 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, the bracket is housed and positioned within the support groove, and / or the connecting support is further provided with a relief notch communicating with the fixing cavity, the relief notch is used to recede the routing, and / or the inner wall of the fixing cavity is provided with a positioning projection and / or a positioning groove, the periphery of the conductive support is provided with a positioning projection, the conductive support is provided in the fixing cavity, and the positioning projection is positionally fitted into the positioning projection and / or the positioning groove, and / or the connecting support is a metal press part.

[0013] In one embodiment, the central magnetic portion includes a central magnet and a central washer arranged in a stack, the central magnet is interposed between the central washer and the magnetic yoke, and the mounting hole sequentially penetrates the magnetic yoke, the central magnet and the central washer. The central magnetic portion further includes an auxiliary magnet provided within the mounting hole and located between the central magnet and the conductive support, with at least a portion of it provided in correspondence with the damper.

[0014] In one embodiment, 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 magnets include a plurality of auxiliary magnets arranged in an annular shape, or arranged at intervals and surrounding 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.

[0015] In one embodiment, a portion of the central washer is recessed away from the diaphragm assembly, with one end communicating with the mounting hole and the other end extending to the periphery of the central washer, forming a retraction area corresponding to the voice coil lead wires and / or the damper. And / or, the central magnet is arranged in an annular shape, or the central magnet includes a plurality of central magnets that surround the mounting hole in an annular shape. And / or, the center washer is provided in an annular shape, or the center washer includes a plurality of center washers that surround the mounting hole in an annular shape. And / or, a positioning boss is provided on the side of the conductive support opposite to the damper, which is positioned and abuts against the side of the central magnet opposite to the central washer.

[0016] In one embodiment, the conductive support is provided with a first welded surface, which is provided opposite to and facing the damper and connected to the damper, and a second welded 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, the conductive support is provided with a groove on the side opposite to the first welded surface, the bottom wall of which forms the second welded surface. And / or, the conductive support comprises a main body member and a land piece having a first pad portion and a second pad portion fitted into and connected within 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.

[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 being electrically connected to the lead wires of the voice coil. Here, each of the dampers includes a first connection portion that is connected to the diaphragm assembly and electrically connected to the lead wire of the voice coil, which are sequentially connected, an elastic arm, and a second connection portion that is connected to the conductive support.

[0019] In one embodiment, the plurality of dampers are symmetrically distributed along the long axis direction or / and the short axis direction of the magnetic circuit system. And / or, the first connection portion and the second connection portion are located in different planes. And / or, the first connection portion, the elastic arm, and the second connection portion have an integrally formed structure. 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 includes a diaphragm provided opposite to the magnetic circuit system and having an inner ring hole in the center, a skeleton, the skeleton is provided in the inner ring hole and connected to the diaphragm, the damper is connected to the skeleton, and the skeleton has an assembly hole provided corresponding to the conductive support, and a dome covering 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 the outside of the corrugated portion, and an inner ring portion connected to the inside of the corrugated portion. The inner ring portion forms the inner ring hole, the periphery of the skeleton is connected to the inner ring portion, and the voice coil is located between the inner ring portion. And / or, the skeleton is provided with a storage groove so as to surround the assembly hole, and the dome is positionally restricted within the storage groove. And / or, a stepped surface is formed on the periphery of the frame, located between the voice coil and the diaphragm, and the side of the diaphragm adjacent to the inner ring hole is supported and connected to the stepped surface.

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

[0023] In one embodiment, the connecting table is formed by bending or stretching the frame on the side adjacent to the assembly hole, And / or, the connection table is an annular boss provided so as to encircle 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, each corresponding to the long axis or short axis of the magnetic path system. And / or, the connecting table includes a first connecting arm and a second connecting arm arranged at an angle, the end of the first connecting arm away from the second connecting arm connected to the inner wall of the assembly hole, the second connecting arm extending away from the frame, and the end of the damper away from the conductive support connected to the second connecting arm, the first connecting arm and the frame.

[0024] The present invention further proposes a sound emission module, the sound emission module being, Module housing and The sound emission device described above is provided within the module housing, The system includes a flexible circuit board, one end of which is electrically connected to a conductive support of the sound-emitting device, and the other end of which is connected to an external power supply.

[0025] In one embodiment, 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 that positions and fits into the positioning lug. And / or, the conductive support is further provided with a concession notch corresponding to the flexible circuit board.

[0026] The present invention further proposes an electronic device, which includes the sound emission device described above, Alternatively, the electronic device may include the sound emission module described above. [Effects of the Invention]

[0027] The sound emission device of the present invention is provided with a magnetic path system in a rectangular structure, and the magnetic path system is provided with a magnetic yoke and a central magnetic part and side magnetic parts provided on the magnetic yoke, so that the side magnetic parts are located outside the central magnetic part and surround the central magnetic part with a magnetic gap, and the vibration system is provided on a diaphragm assembly, voice coil and damper facing the magnetic path system, 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, thereby passing an electric current through the voice coil, the voice coil converts electrical energy into mechanical energy within the magnetic gap formed by the magnetic path system, drives the voice coil to vibrate the diaphragm assembly and realizes sound emission, and at the same time the magnetic path system is provided with mounting holes that penetrate the magnetic yoke and the central magnetic part, and a conductive support is provided in the mounting holes, thereby 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 the lead wires of the voice coil. This allows the damper to be mounted and fixed by the conductive support, and the voice coil can be connected to the external circuit by the damper and the conductive support. Furthermore, the damper can effectively avoid oscillation or polarization of the voice coil, thereby improving the acoustic performance of the sound emitting device. Additionally, by providing a mounting hole in the central position where the utilization rate of the magnetic field of the central magnetic part in the magnetic circuit system is not high, weight reduction can be achieved, and the conductive support can be mounted and fixed. Moreover, since the damper is provided in the mounting hole in the middle of the central magnetic part, the damper does not occupy the installation space of the side magnetic part, the side magnetic part can increase its installation volume, improve the magnetic field strength of the magnetic circuit system, further improve the BL value, and improve the acoustic performance of the sound emitting device. [Brief explanation of the drawing]

[0028] To more clearly illustrate embodiments of the present invention or technical solutions in the existing art, the following is a brief introduction to the accompanying drawings that may be used in the description of embodiments or the existing art. It is obvious that the accompanying drawings in the following description represent only a few embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on the structures shown in these drawings without expending any creative effort. [Figure 1] This is a schematic diagram of the structure of a sound emission device in one embodiment of the present invention. [Figure 2] This is a schematic diagram of the structure of a sound emission device from a different perspective in one embodiment of the present invention. [Figure 3] This is an exploded schematic diagram of a sound emission device in one embodiment of the present invention. [Figure 4] This is a schematic cross-sectional view along the longitudinal axis of a sound emission device in one embodiment of the present invention. [Figure 5] This is a schematic diagram of the structure of a sound emission device in another embodiment of the present invention. [Figure 6] An exploded schematic diagram of a sound emission device in another embodiment of the present invention. [Figure 7] This is a schematic cross-sectional view along the longitudinal axis of a sound emission device in another embodiment of the present invention. [Figure 8] This is a schematic cross-sectional view along the short axis direction of a sound emission device in another embodiment of the present invention. [Figure 9] This is a schematic diagram of the structure in which the frame, voice coil, damper, and conductive support are connected in one embodiment of the present invention. [Figure 10] This is a schematic diagram of the structure in which the skeleton, damper, and conductive support are connected in one embodiment of the present invention. [Figure 11] This is a schematic diagram illustrating the structure in which the skeleton, damper, and conductive support are connected in another embodiment of the present invention. [Figure 12] This is a schematic diagram of the skeletal structure in one embodiment of the present invention. [Figure 13] This is a schematic diagram of the skeletal structure in another embodiment of the present invention. [Figure 14] This is a schematic diagram of the structure of a damper in one embodiment of the present invention. [Figure 15] This is a schematic diagram of the structure of a central washer in one embodiment of the present invention. [Figure 16] This is a schematic diagram of the structure of a magnetic yoke in one embodiment of the present invention. [Figure 17] A schematic diagram of the structure of a magnetic yoke in another embodiment of the present invention. [Figure 18] A schematic diagram of the structure of a magnetic yoke in yet another embodiment of the present invention. [Figure 19] This is a schematic diagram of the structure of a conductive support in one embodiment of the present invention. [Figure 20] This is a schematic diagram of the conductive support structure from a different perspective in one embodiment of the present invention. [Figure 21] This is a schematic cross-sectional view of a conductive support in one embodiment of the present invention. [Figure 22] This is a schematic diagram of a structure in which a conductive support and a connecting support are connected in one embodiment of the present invention. [Figure 23] This is a schematic diagram of a structure from a different perspective in which a conductive support and a connecting support are connected in one embodiment of the present invention. [Figure 24] This is a schematic diagram of the structure of a connecting support in one embodiment of the present invention. [Figure 25] This is a schematic diagram of the structure of a sound emission module in one embodiment of the present invention. [Figure 26] This is a schematic cross-sectional view of a sound emission module in one embodiment of the present invention. [Figure 27] This is a schematic diagram of the structure of a sound emission module in another embodiment of the present invention.

[0029] The realization of the objectives, functional features, and advantages of the present invention will be further described in conjunction with examples and with reference to the accompanying drawings. [Modes for carrying out the invention]

[0030] The following clearly and completely describes the technical proposal in the embodiments of the present invention, linking it with the accompanying drawings. Clearly, the embodiments described are only a selection of embodiments of the present invention, not all embodiments. All other embodiments obtained based on the embodiments of the present invention without the creative effort of a person skilled in the art are all within the scope of the protection of the present invention.

[0031] In the embodiments of the present invention, all directional indicators (for example, up, down, left, right, front, back, etc.) are used solely to describe the relative positional relationships and movements between each component in a specific orientation (as shown in the drawings). If this specific orientation changes, the directional indicators will also change accordingly.

[0032] At the same time, the meaning of "and / or" or "and / or" appearing throughout the text includes three schemes, and taking "A and / or B" as an example, it includes scheme A, scheme B, or a scheme in which both A and B are satisfied simultaneously.

[0033] Furthermore, in this invention, descriptions relating to "first," "second," etc., are used solely for descriptive purposes and should not be understood as indicating or suggesting their relative importance or implicitly indicating the number of specified technical features. Thus, features limited to "first" or "second" may explicitly or implicitly include at least one such feature. Also, while the technical solutions between each embodiment can be combined, this must be based on what a person skilled in the art can achieve. If a combination of technical solutions results in a contradiction or is not feasible, such a combination of technical solutions should be considered nonexistent and is not included in the scope of protection required by this invention.

[0034] The present invention proposes a sound emission device 100. As can be understood, the sound emission device 100 is applied to, but is not limited to, electronic devices such as smartwatches, mobile phones, audio equipment, computers, earphones, televisions, etc.

[0035] As shown in Figures 1 to 24, in an embodiment of the present invention, the sound emission device 100 includes a magnetic path system 2 provided in a rectangular shape and including a magnetic yoke 21 and a central magnetic part 22 and side magnetic parts 23 provided on the magnetic yoke 21, wherein the side magnetic parts 23 are located outside the central magnetic part 22 and surround a magnetic gap 24 with respect to the central magnetic part 22, and the magnetic path system 2 is provided with a mounting hole 25 that penetrates the magnetic yoke 21 and the central magnetic part 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 with one end connected to the diaphragm assembly 41 and the other end suspended in the magnetic gap 24, and a damper 43 with 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 emission device 100 may be a microspeaker or a speaker sound emission unit.

[0037] The magnetic circuit system 2 and vibration system 4 of the sound emission device 100 are arranged opposite each other. Selectively, the magnetic circuit system 2 is provided in a rectangular shape. For example, the magnetic circuit system 2 may include a central magnetic section 22 and side magnetic sections 23, both of which have a rectangular structure. The vibration system 4 is also provided in a rectangular shape. To make it clear, the periphery of the diaphragm assembly 41 of the vibration system 4 may be connected to the magnetic circuit system 2, or the magnetic circuit system 2 and the vibration system 4 may be assembled in a module housing, but are not limited thereto.

[0038] To better assemble the magnetic circuit system 2 and 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 circuit 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 provided opposite to the magnetic circuit 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 provided opposite to the magnetic circuit system 2.

[0039] In this embodiment, the housing 1 is used to mount, fix, and support components such as the magnetic circuit system 2 and the vibration system 4; that is, the housing 1 provides a mounting base for components such as the magnetic circuit system 2 and the vibration system 4. To understand that, the housing 1 may be a single, integrated structure or may be formed by fitting together multiple segmented structures, but is not limited thereto. In this embodiment, the housing 1 is selectively a rectangular housing or frame structure; that is, the housing 1 has a cavity with openings at both ends, and the magnetic circuit system 2 and the vibration system 4 are connected to and positioned opposite each other on both sides of the housing 1, so that the magnetic circuit system 2, the housing 1, and the diaphragm assembly 41 of the vibration system 4 surround and form the vibration cavity.

[0040] To make it easier to understand, the sound emission device 100 is applied to electronic equipment, that is, the sound emission device 100 is mounted on the electronic equipment by a housing 1. The housing 1 of the sound emission device 100 may be a housing or housing structure independent of the electronic equipment. In this case, the housing 1 integrates the components of the sound emission device 100, such as the magnetic circuit system 2 and the vibration system 4, into a single structure, making attachment and detachment easier. Of course, the housing 1 of the sound emission device 100 may also be provided as an integrally molded structure with the housing or housing structure of the electronic equipment, thereby effectively improving structural strength and sealing performance.

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

[0042] To make it understandable, by providing the magnetic path system 2 on the magnetic yoke 21 and the central magnetic portion 22 and side magnetic portion 23 provided on the magnetic yoke 21, the magnetic path system 2 can be connected to the housing 1 by the periphery of the magnetic yoke 21, or the magnetic path system 2 can be connected to the housing 1 by the side magnetic portion 23, but is not limited thereto. In this embodiment, the side magnetic portion 23 is positioned outside the central magnetic portion 22 and surrounds the central magnetic portion 22 with a magnetic gap 24, thereby connecting the diaphragm assembly 41 of the vibration system 4 to one end of the housing 1 away from the magnetic yoke 21 and spaced apart from the magnetic path system 2, thereby connecting one end of the voice coil 42 to the diaphragm assembly 41 and suspending the other end of the voice coil 42 within the magnetic gap 24.

[0043] In order to achieve electrical connection between the voice coil 42 and the external circuit, the sound emitting device 100 in related technologies generally employs a damper structure, with both ends of the damper 43 electrically connected to the lead wires of the voice coil 42 and the external circuit, respectively. The damper 43 is provided at the four corners of the sound emitting device 100 or on the short axis of the sound emitting device 100, that is, by providing a retraction space at the four corner positions or short axis positions of the magnetic path system 2 to provide mounting space or mounting positions for the damper 43, the damper 43 occupies a 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 increased. As a result, the magnetic field strength of the magnetic path system 2 is not high, and the BL value is reduced, which affects the acoustic performance of the sound emitting device 100.

[0044] In this embodiment, by providing a mounting hole 25 that penetrates the magnetic yoke 21 and the central magnetic part 22 in the magnetic path system 2, 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. As a result, the conductive support 3 and the damper 43 introduce an external current to the voice coil 42, and the damper 43 performs a centering action on the vibration of the voice coil 42, thereby avoiding problems such as oscillation or polarization during the vibration of the voice coil 42 and improving the sound emission effect and acoustic performance of the sound emission device 100.

[0045] To make it easier to understand, the utilization rate of the magnetic field at the central position of the central magnetic part 22 of the magnetic circuit system 2 is low, and a mounting hole 25 is provided at the central position of the magnetic circuit system 2. That is, by providing a mounting hole 25 at the central position where the utilization rate of the magnetic field of the central magnetic part 22 in the magnetic circuit system 2 is not high, weight reduction can be achieved on the premise that the impact on the magnetic field strength of the magnetic circuit system is relatively small, and the conductive support 3 can be mounted and fixed. Furthermore, since the damper 43 is provided 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. As a result, the installation volume of the side magnetic part 23 can be increased, improving the magnetic field strength of the magnetic circuit system 2, further improving the BL value, and improving the acoustic performance of the sound emitting device 100.

[0046] In this embodiment, the mounting hole 25 may be a polygonal hole such as a circular hole, elliptical hole, square hole, or triangular hole, or an irregularly shaped hole, and will be specifically selected and set according to the actual requirements, and is not limited thereto. 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 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 communicates with the third through-hole of the magnetic yoke 21 to form the mounting hole 25.

[0047] The sound emission device 100 of the present invention provides a magnetic path system 2 in a rectangular structure, and provides the magnetic path system 2 to a magnetic yoke 21 and a central magnetic part 22 and side magnetic parts 23 provided on the magnetic yoke 21, so that the side magnetic parts 23 are located outside the central magnetic part 22 and surround the central magnetic part 22 with a magnetic gap 24, and provides a vibration system 4 to a 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 in contact with the diaphragm assembly 41. The other end of the voice coil 42 is suspended within the magnetic gap 24, thereby allowing current to flow through the voice coil 42. The voice coil 42 converts electrical energy into mechanical energy within the magnetic gap 24 formed by the magnetic circuit system 2, driving the voice coil 42 to vibrate the diaphragm assembly 41, thereby achieving sound emission. At the same time, the magnetic circuit system 2 is provided with mounting holes 25 that penetrate the magnetic yoke 21 and the central magnetic part 22, and a conductive support 3 is provided within the mounting holes 25, thereby creating 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 electrically connected to the lead wire of the voice coil 42. This allows the damper 43 to be mounted and fixed by the conductive support 3, and the voice coil 42 can be connected to the external circuit by the damper 43 and the conductive support 3. Furthermore, the damper 43 can effectively avoid oscillation or polarization of the voice coil 42, thereby improving the acoustic performance of the sound emitting device 100. Additionally, by providing the mounting hole 25 at a central position in the magnetic circuit system 2 where the utilization rate of the magnetic field of the central magnetic section 22 is not high, weight reduction can be achieved, and the conductive support 3 can be mounted and fixed. Moreover, since the damper 43 is provided in the mounting hole 25 in the middle of the central magnetic section 22, the damper 43 does not occupy the installation space of the side magnetic section 23, the side magnetic section 23 can increase its installation volume, improve the magnetic field strength of the magnetic circuit system 2, further improve the BL value, and improve the acoustic performance of the sound emitting device 100.

[0048] In one embodiment, the side magnetic portion 23 is selectively provided in an annular shape, in which case the annular side magnetic portion 23 is located outside the central magnetic portion 22 and surrounds the magnetic gap 24 at a distance from the central magnetic portion 22. Selectively, both the side magnet 231 and the side washer 232 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 surround the magnetic gap 24 at a distance from the central magnetic portion 22. Selectively, there are multiple side magnets 231 and side washers 232, and they are provided in one-to-one correspondence, with adjacent side magnets 231 having their ends joined together to form a closed annular structure.

[0050] Furthermore, in the conventional design, the damper 43 in the present invention is provided in an intermediate mounting hole 25 of the central magnetic section 22, and the damper 43 is provided at the four corners of the magnetic path system 2. In contrast, the damper 43 in the present invention does not occupy the installation space of the side magnetic section 23, and there is no need to provide a space for housing the damper 43 between two adjacent side magnets 231. As a result, the side magnets 231 can be provided in a closed annular 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 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 Figures 3 to 7, 16 and 17, a positioning table 211 is provided on the magnetic yoke 21, thereby enabling further mounting, fixing, and positioning of the conductive support 3 by the positioning table 211.

[0053] To make it clear, the positioning table 211 is provided adjacent to the mounting hole 25. Optionally, the positioning table 211 may extend and protrude toward the diaphragm assembly 41, or it may extend and protrude toward the side away from the diaphragm assembly 41, but is not limited thereto.

[0054] In this embodiment, the positioning table 211 is selectively positioned between the central magnetic section 22 and the conductive support 3. As can be understood, the positioning table 211 extends and protrudes toward the diaphragm assembly 41, ensuring that the side of the magnetic yoke 21 opposite to the diaphragm assembly 41 is provided in a planar manner, thereby facilitating the assembly of the sound emission device 100 into electronic equipment. At the same time, the positioning table 211 can provide positioning and position-regulating effects on the central magnetic section 22 and the conductive support 3.

[0055] In one embodiment, as shown in Figures 3 to 7, 16 and 17, the positioning table 211 is formed by bending it on the side adjacent to the mounting hole 25 of the magnetic yoke 21, that is, the positioning table 211 is formed by bending it on the side adjacent to the third through hole of the magnetic yoke 21. As can be seen, the positioning table 211 and the magnetic yoke 21 are integrally molded structures, thereby simplifying the processing steps of the magnetic yoke 21 and improving the structural strength of the positioning table 211. Of course, in other embodiments, the positioning table 211 and the magnetic yoke 21 may be provided separately, and the positioning table 211 may be connected to the magnetic yoke 21 by welding or bonding, but is not limited thereto.

[0056] Selectively, the positioning table 211 is an annular boss provided to encircle the mounting hole 25. This configuration effectively increases the contact area between the positioning table 211 and the conductive support 3, thereby improving mounting stability. Of course, other embodiments 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 can reduce costs while still enabling the mounting, fixing, and positioning of 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, with one end of the first positioning portion 2111 away from the second positioning portion 2112 connected to a magnetic yoke 21, the second positioning portion 2112 extending away from the central magnetic portion 22, and a position regulating table 311 provided on the conductive support 3, the position regulating table 311 being regulated and connected to the second positioning portion 2112.

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

[0059] Selectively, the mounting holes 25 are provided as rectangular holes. To make it clear, the positioning tables 211 include two or four. In this embodiment, the positioning tables 211 include, but are not limited to, two positioning tables 211 that are positioned opposite each other and correspond to two opposing edges of the mounting holes 25, respectively.

[0060] In one embodiment, the conductive support 3 is further provided with a relief groove 312 that accommodates the positioning table 211, corresponding to the positioning table 211.

[0061] In this embodiment, as shown in Figures 5 to 7, 9, and 19 to 21, a relief groove 312 is provided in the conductive support 3, allowing the relief groove 312 to be fitted into the positioning table 211 to achieve positioning assembly, and increasing the contact area between the conductive support 3 and the positioning table 211, thereby improving mounting stability.

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

[0063] In this embodiment, as shown in Figures 2, 5, 16-18, 25, and 27, a pressure groove 212 is provided in the magnetic yoke 21. 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 yoke 21. This makes it easy to use the pressure groove 212 to recede the wiring.

[0064] To make it clear, the conductive support 3 of the sound emission device 100 is connected to an external circuit by a structure such as conductive wiring or a flexible circuit board. In this case, the pressure groove 212 on the side of the magnetic yoke 21 opposite the diaphragm assembly 41 provides routing space for the conductive wiring or flexible circuit board and is used to achieve positioning and position-restricted mounting relative to 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 magnetic yoke 21 opposite the diaphragm assembly 41.

[0065] Selectively, the pressure grooves 212 include a plurality of pressure grooves provided at intervals. In this embodiment, one end of the plurality of pressure grooves 212 communicates with the mounting hole 25, and the other end of the plurality of pressure grooves 212 extends to the periphery of the magnetic yoke 21 and is provided at intervals.

[0066] To improve the balance performance of the sound emission device 100, the multiple pressure grooves 212 are provided symmetrically with respect to the mounting holes 25. Of course, in other embodiments, the multiple pressure grooves 212 are selectively provided radially around the mounting holes 25, and are not limited thereto.

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

[0068] In this embodiment, as shown in Figures 18, 25, and 27, by providing a retractable notch 213 on the periphery of the magnetic yoke 21, one end of the pressure groove 212 away from the mounting hole 25 communicates with the retractable notch 213. This allows for further positional control assembly of conductive wiring or flexible circuit boards and other structures by the retractable notch 213, thereby enabling directional routing and mounting.

[0069] In one embodiment, the sound emission device 100 further includes a connecting support 5 provided in a mounting hole 25, a fixed cavity 511 provided in the connecting support 5, and a conductive support 3 provided inside the fixed cavity 511.

[0070] In this embodiment, as shown in Figures 22 to 24 and Figure 27, by providing the connecting support 5, the conductive support 3 is mounted and fixed within the mounting hole 25 by the connecting support 5, thereby further improving the mounting stability and structural strength of the conductive support 3. Selectively, the connecting support 5 is a metal pressed part. To understand this, the shape contour of the connecting support 5 is approximately equivalent to the shape contour of the conductive support 3.

[0071] In one embodiment, a support groove 214 is formed on the side of the magnetic yoke 21 opposite to the diaphragm assembly 41 so as to encircle a mounting hole 25, and the connecting support 5 includes a main body 51 and a bracket 52 encircling 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 housed in the support groove 214 and its position is restricted.

[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 to the diaphragm assembly 41. In this case, the mounting hole 25 penetrates the bottom wall of the support groove 214, thereby enabling support and positional mounting to the connecting support 5 by the support groove 214.

[0073] To make it clear, the main body 51 and bracket 52 of the connecting support 5 are selectively integrally molded structures, thereby simplifying the manufacturing steps of the connecting support 5 and improving the structural strength of the connecting support 5. Selectively, the bracket 52 is provided around the periphery of the main body 51, so that when the main body 51 of the connecting 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 connecting support 5 is selectively a cavity structure with openings at both ends, which facilitates the mounting of the conductive support 3 and facilitates the connection and conductivity between the conductive support 3 and the external circuit.

[0074] In this embodiment, the pressure groove 212 on the side of the magnetic yoke 21 opposite the diaphragm assembly 41 communicates with the support groove 214, so when attached to conductive wiring or a flexible circuit board for connecting the conductive support 3 to an external circuit, it provides a positional regulating space.

[0075] In one embodiment, as shown in Figures 22-24 and 27, the connecting support 5 is further provided with a relief notch 53 communicating with a fixed cavity 511, the relief notch 53 being used to recede wiring. As can be understood, by providing it in this way, the relief notch 53 can provide mounting and positioning space for conductive wiring or a flexible circuit board for connecting the conductive support 3 to an external circuit, so that the conductive wiring or flexible circuit board does not protrude from the side opposite the diaphragm assembly 41 of the magnetic yoke 21, making the overall structure more compact.

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

[0077] In this embodiment, as shown in Figures 23 and 24, the connecting support 5 is provided with a positioning projection and / or a positioning groove 54, and a positioning regulating projection 313 is provided on the periphery of the conductive support 3. By positioning and fitting the positioning regulating projection 313 into the positioning projection and / or positioning groove 54, the mounting and fixing of the conductive support 3 and the connecting support 5 and the positioning regulating function are achieved.

[0078] In one embodiment, the central magnetic section 22 includes a central magnet 221 and a central washer 222 that are stacked together, with the central magnet 221 interposed between the central washer 222 and the magnetic yoke 21, and the mounting hole 25 sequentially passes through the magnetic yoke 21, the central magnet 221 and the central washer 222.

[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 which are stacked together. By interposing the central magnet 221 between the central washer 222 and the magnetic yoke 21, and by sequentially passing the mounting holes 25 through the magnetic yoke 21, the central magnet 221, and the central washer 222, the weight of the central magnetic portion 22 can be effectively reduced by the mounting holes 25. Since the contribution of the magnet at the intermediate position of the central magnetic portion to the magnetic field strength is relatively small, the conductive support 3 can be mounted and fixed on the premise that the impact on the magnetic field strength is relatively small.

[0080] To make it easier to understand, the central washer 222 forms a first through hole, the central magnet 221 forms a second through hole, the magnetic yoke 21 forms a third through hole, and the first, second, and third through holes are sequentially connected to form a mounting hole 25.

[0081] Selectively, 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 may include a plurality of rod-shaped structures, the plurality of rod-shaped structures may surround and form an annular structure, thereby surrounding and forming a through-hole structure, but is not limited thereto.

[0082] To make it clear, the central magnet 221 is selectively arranged in an annular shape such 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 multiple central magnets 221 that form an annular arrangement around the second through-hole. The central washer 222 is arranged in an annular shape such 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, but is not limited to, multiple central washers 222 that form an annular arrangement around the first through-hole.

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

[0084] In this embodiment, as shown in Figures 8, 9, 19, and 20, by providing a positioning projection 315 on the periphery of the conductive support 3, when the conductive support 3 is installed in the mounting hole 25, the positioning boss 315 is positioned and brought into contact with the opposite side of the central washer 222 of the central magnet 221, thereby achieving positional mounting of the conductive support 3 and improving the robustness of the assembly of the conductive support 3.

[0085] In the specific embodiment shown in Figures 25 and 26, a third through-hole is provided in the magnetic yoke 21, and the conductive support 3 enters the sound emission 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 to each other, and a positioning boss 315 is provided on one of the first and second side walls, and the positioning boss 315 is positioned and abuts against the side opposite to the central washer 222 of the central magnet 221, and the other side of the first and second side wall abuts against or loosely fits against the inner wall of the third through-hole.

[0086] In one embodiment, the central magnetic portion 22 further includes an auxiliary magnet 224 provided within the mounting hole 25 and located between the central magnet 221 and the conductive support 3, with at least a portion of it corresponding 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 mounted on the magnetic yoke 21 and positioned between the central magnet 221 and the conductive support 3, thereby effectively increasing the magnetic volume of the central magnetic part 22 and improving the magnetic field strength to a certain extent. As a result, the auxiliary magnet 224 can make full use of the space within the mounting hole 25 of the central magnetic part 22 and improve acoustic performance.

[0088] To make it clear, the installation of the auxiliary magnet 224 increases the magnetic volume of the central magnetic section 22, thereby improving acoustic performance. At least a portion of the auxiliary magnet 224 is provided in correspondence with the damper 43, and the height difference between the auxiliary magnet 224 and the central washer 222 of the central magnetic section 22 provides a retraction space or vibration space for the damper 43. Selectively, 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 effectively ensures a vibration space for the damper 43.

[0089] Selectively, the auxiliary magnet 224 and the central magnet 221 are integrally molded. Of course, in other embodiments, the auxiliary magnet 224 is adhesively connected to the central magnet 221, and is not limited thereto.

[0090] In this embodiment, the auxiliary magnet 224 is provided in an annular shape, that is, the annular auxiliary magnet 224 is provided so as to encircle the conductive support 3, in which case the central magnet 221 of the central magnetic part 22 is connected to the auxiliary magnet 224, thereby the auxiliary magnet 224 is formed with mounting holes 25 encircling it. Of course, in other embodiments, the auxiliary magnet 224 may include a plurality of auxiliary magnets 224 provided at intervals and encircling the conductive support 3. Selectively, the auxiliary magnet 224 may include, but are not limited to, two or four.

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

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

[0093] To make it easier to understand, 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, a portion of the central washer 222 is recessed away from the diaphragm assembly 41, with one end communicating with a mounting hole 25 and the other end extending to the periphery of the central washer 222, forming a retraction 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, by providing a retraction area 223 on the central washer 222, one end of the retraction area 223 communicates with the mounting hole 25 and the other end of the retraction area 223 extends to the periphery of the central washer 222. As a result, the retraction area 223 is provided in correspondence with the lead wires of the voice coil 42 and / or the damper 43, thereby providing a retraction space for vibrations of the lead wires of the voice coil 42 and / or the damper 43.

[0096] To make it clear, the retraction area 223 may be a through-hole or notch structure that penetrates the central washer 222. Of course, the retraction area 223 may also be recessed in the direction away from the diaphragm assembly 41 to form a groove structure, but is not limited thereto.

[0097] In one embodiment, the conductive support 3 is provided with a first welded surface 316 facing and connected to the damper 43, and a second welded surface 317 for connecting to an external power source, wherein the first welded surface 316 is not higher than the surface of the central magnetic section 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 3 facing the damper 43, and a second welding surface 317 is further provided on the side of the conductive support 3 opposite to the first welding surface 316. This allows the first welding surface 316 to be connected to the damper 43, and the second welding surface 317 is used to connect to an external power source. Thus, the conductive support 3 connects the external circuit to the damper 43 and supplies power to the voice coil 42.

[0099] Selectively, the first weld surface 316 is not higher than the surface of the central magnetic section 22 facing the diaphragm assembly 41. As can be understood, this configuration facilitates the installation of 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, a groove 318 is provided on the side of the conductive support 3 opposite to the first welding surface 316, the bottom wall of which forms a second welding surface 317.

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

[0102] In one embodiment, the conductive support 3 includes a main body member 31 and a land piece 32 fitted into and connected within the main body member 31, the land piece 32 including a first pad portion 321 and a second pad portion 322, the land piece 32 including 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] In this embodiment, as shown in Figures 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 be selectively a metallic conductive member, and the land piece 32 and the main body member 31 of the conductive support 3 may be integrally molded by injection molding. To make it clear, the land piece 32 is provided on the first pad portion 321 and the second pad portion 322 to which it is connected, such that at least a part of the first pad portion 321 is exposed to the first welding surface 316 and at least a part of the second pad portion 322 is exposed to the second welding surface 317, thereby facilitating the connection and conductivity between the damper 43 and the first pad portion 321 of the first welding surface 316, and the conductive wiring or flexible circuit board connected to the external circuit is connected and conductive to the second pad portion 322 of the second welding surface 317, thereby smoothly conducting the external current to the voice coil 42 by the conductive support 3 and the damper 43.

[0104] To make it easier to understand, 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 and spaced apart on the first welding surface 316. Selectively, the two first pads 323 are spaced apart along the long axis of the magnetic path system 2, or the two first pads 323 are spaced apart along the short axis of the magnetic path system 2.

[0105] As shown in Figure 11, the two first pads 323 are arranged at intervals along the long axis of the magnetic circuit system 2, in which case the two dampers 43 are arranged along the long axis of the magnetic circuit system 2 and are each electrically connected to the two first pads 323. As shown in Figure 10, the two first pads 323 are arranged at intervals along the short axis of the magnetic circuit system 2, in which case the two dampers 43 are arranged along the long axis of the magnetic circuit system 2 and are each electrically connected to the two first pads 323.

[0106] To make it clear, 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 on the second welding surface 317. Selectively, the two second pads 324 are spaced apart along the long axis of the magnetic path system 2, or the two second pads 324 are spaced apart along the short axis 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 a conductive support 3 and the other end connected to a diaphragm assembly 41, and each being electrically connected to the lead wires of a voice coil 42.

[0108] In this embodiment, as shown in Figures 3, 4, 6, 7, 9 to 11, and 14, multiple dampers 43 are provided, with one end of each damper 43 connected to the conductive support 3, the other end of each damper 43 connected to the diaphragm assembly 41, and each electrically connected to the lead wires of the voice coil 42. Selectively, the multiple dampers 43 are distributed symmetrically along the long axis and / or short axis of the magnetic path system 2.

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

[0110] To make it clear, when there are two dampers 43, the two dampers 43 are spaced apart along the long axis of the magnetic circuit system 2, or the two dampers 43 are spaced apart along the short axis of the magnetic circuit system 2, and are not limited thereto. Of course, when there are four dampers 43, two dampers 43 are spaced apart along the long axis of the magnetic circuit system 2, and two dampers 43 are spaced apart along the short axis of the magnetic circuit system 2, and are not limited thereto.

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

[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 integrally molded structures. In this way, the structural strength of the damper 43 can be effectively ensured, and the manufacturing steps for the damper 43 can be simplified.

[0113] To ensure the deformation capacity of the damper 43, the elastic arm 432 has at least one bent portion. In this embodiment, a vibration space 33 is formed between the conductive support 3 and the inner wall of the mounting hole 25 to accommodate the damper 43. In this way, sufficient vibration space can be ensured when the damper 43 vibrates together with the voice coil 42, thus avoiding interference or influence on other components.

[0114] In one embodiment, as shown in Figure 14, the first connection portion 431 and the second connection portion 433 are located in different planes. To make it clear, the plane in which the first connection portion 431 is located and the plane in which the second connection portion 433 is located are in different planes such that there is a height difference in the direction of vibration of the voice coil 42. This facilitates the connection between the first connection portion 431 of the damper 43 and the frame 412 of the diaphragm assembly 41, smooths the welding connection with the lead wires of the voice coil 42, avoids interference between the central magnetic portion 22 and the central washer 222 during the vibration process of the damper 43, and reduces the range of the retraction region 223 provided in the central magnetic portion 22. At the same time, the damper 43 enables the connection between the conductive support 3 and the diaphragm assembly 41, and the damper 43 effectively avoids problems such as oscillation or polarization during the vibration of the voice coil 42.

[0115] In one embodiment, the diaphragm assembly 41 includes a diaphragm 411 provided opposite the magnetic path system 2 and having an inner ring hole 4114 in the center, a frame 412 provided in the inner ring hole 4114 and connected to the diaphragm 411, to which a damper 43 is connected and which has an assembly hole 4121 corresponding to the conductive support 3, and a dome 413 covering the assembly hole 4121, where the voice coil 42 is connected to either the diaphragm 411 or the frame 412.

[0116] In this embodiment, as shown in Figures 1, 3, 4, 6 to 13, the diaphragm assembly 41 is provided with a structure consisting of three parts: a diaphragm 411, a frame 412, and a dome 413. The periphery of the diaphragm 411 is connected to the housing 1, an inner ring hole 4114 is formed in the center of the diaphragm, and the frame 412 is provided in the inner ring hole 4114. The frame 412 connects and fixes the voice coil 42 and the damper 43, improving mounting stability. At the same time, by providing assembly holes 4121 in the frame 412 corresponding to the conductive support 3, the damper 43 can be easily attached and fixed by the assembly holes 4121, connecting and fixing the damper 43 to the conductive support 3 and the frame 412, improving the convenience of mounting.

[0117] To make it easier to understand, by providing a dome 413 over the assembly hole 4121 in order to seal the assembly hole 4121, the dome 413 covers the assembly hole 4121, thereby sealing the assembly hole 4121 and ensuring the vibration performance of the diaphragm assembly 41.

[0118] In one embodiment, as shown in Figures 1, 3, 4, 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 forms 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] To make it easier to understand, the fixing portion 4112, corrugated portion 4111, and inner ring portion 4113 of the diaphragm 411 are sequentially connected as an integrally molded structure, thereby ensuring the vibration performance and structural strength of the diaphragm 411.

[0120] In this embodiment, as shown in Figures 3-4, 6-8, and 10-12, the frame 412 is provided with a storage groove 4122 that encircles the assembly hole 4121, and the dome 413 is positioned within the storage groove 4122. To make it clear, by providing the storage groove 4122 on the side of the frame 412 opposite the voice coil 42, and by providing the storage groove 4122 that encircles the assembly hole 4121, the mounting and storage of the dome 413 can be facilitated by the storage groove 4122, the upper surface of the dome 413 and the upper surface of the frame 412 can be made flush, thereby reducing the height along the vibration direction of the vibration system 4 of the sound emission device 100 and ensuring the overall vibration performance of the diaphragm assembly 41.

[0121] Selectively, a stepped surface 4123 is formed on the periphery of the frame 412, located between the voice coil 42 and the diaphragm 411, and the side of the diaphragm 411 adjacent to the inner ring hole 4114 is supported and connected to the stepped surface 4123.

[0122] In this embodiment, as shown in Figures 3-4, 6-8, and 10-12, the stepped surface 4123 is provided on the periphery of the frame 412 such that the side of the stepped surface 4123 facing the voice coil 42 is recessed. This ensures that when the inner ring portion 4113 of the diaphragm 411 is supported by overlapping the stepped surface 4123 of the frame 412, the upper surface of the inner ring portion 4113 of the diaphragm 411 and the upper surface of the frame 412 are flush. This makes the assembly structure more compact and ensures the overall vibration performance of the diaphragm assembly 41.

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

[0124] In this embodiment, as shown in Figures 3-4, 6-8, and 10-13, 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 with the connecting table 4124 and improving the connection stability of the damper 43. As can be understood, there is a gap between the diaphragm assembly 41 and the central magnetic part 22 to limit the vibration space 33, and the top surface of the damper 43 does not exceed the top surface of the central magnetic part 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. By providing a connecting table 4124 that extends into the mounting hole 25, the connecting table 4124 can extend into the plane on which the damper 43 is located and connect 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 facilitating the assembly of the damper 43 and the diaphragm assembly 41.

[0126] Selectively, the connecting table 4124 is formed by bending or stretching the side of the frame 412 adjacent to the assembly hole 4121. For example, the connecting table 4124 is formed as a vertically extending structure in which the side wall of the frame 412 adjacent to the assembly hole 4121 extends along the vibration direction (vertical direction) of the vibration system 4. By providing it in this way, 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 frame 412 may be provided separately and connected as a single structure by welding or adhesive, but are not limited thereto.

[0127] Selectively, the connection table 4124 is annular boss provided around the assembly hole 4121. As can be seen, annularly provided connection tables 4124 can facilitate the connection and fixing of multiple dampers 43 and improve ease of installation. 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. Selectively, the connection table 4124 includes two connection tables 4124 provided corresponding to the long axis or short 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 at an angle, with one end of the first connection arm 4125 away from the second connection arm 4126 connected to the inner wall of the assembly hole 4121, the second connection arm 4126 extending away from the frame 412, and one end of the damper 43 away from the conductive support 3 connected to the second connection arm 4126, the first connection arm 4125 and the frame 412. In this embodiment, as shown in Figures 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 at an angle, that is, the first connection arm 4125 and the second connection arm 4126 are arranged in an L-shape, which further increases the contact area with the damper 43 and improves the stability of the installation.

[0129] Selectively, the shape structure of the first connection portion 431 of the damper 43 is similar to the shape structure of the connection table 4124, so that 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 side opposite the dome 413 of the frame 412, and facilitating the connection and fixing of the lead wires of the voice coil 42 to the first connection portion 431, but is not limited thereto.

[0130] In one embodiment, as shown in Figures 9 and 13, the connecting table 4124 is provided on both sides of the first connecting arm 4125 and is connected to the second connecting arm 4126 and the inner wall of the assembly hole 4121, thereby further including the first connecting arm 4125, the second connecting arm 4126 and the two arc-shaped side walls that surround the arc-shaped groove.

[0131] To make it understandable, when the connecting table 4124 is formed by a tensioning method, a connecting table 4124 with a semi-recessed groove structure can be formed, thereby providing arc-shaped side walls on both sides of the first connecting arm 4125 and the second connecting arm 4126 of the connecting table 4124. Selectively, the first connecting arm 4125 and the inner wall of the assembly hole 4121 are connected by a smooth transition. Selectively, the first connecting arm 4125 and the second connecting arm 4126 are connected by a smooth transition.

[0132] Furthermore, the specific structural design of the connection table 4124 is not limited to the case described above; it is sufficient to enable the mounting and fixing of the damper 43, and the present invention is not specifically limited to this.

[0133] In one embodiment, as shown in Figures 2-7, 16-18, 25, and 27, a positioning post 11 is provided on the periphery of the housing 1 opposite to the diaphragm assembly 41, and a positioning notch 215 is provided on the magnetic yoke 21 corresponding to the positioning post 11, and the positioning post 11 is position-fitted into the positioning notch 215. To make it clear, by providing the positioning post 11 on the housing 1 and forming the positioning notch 215 on the magnetic yoke 21 that positions-fits into the positioning post 11, position-mount fitting of the magnetic path system 2 is achieved, improving the convenience and accuracy of installation.

[0134] In this embodiment, as shown in Figures 3, 4, 6-8, and 26, the side magnetic section 23 includes stacked side magnets 231 and side washers 232. The side magnets 231 are interposed between the side washers 232 and the magnetic yoke 21, and the side washers 232 are connected to the housing 1. Selectively, the side washers 232 and the housing 1 are integrally molded, thereby simplifying the structure and improving mounting stability.

[0135] As shown in Figures 25 to 27, the present invention further proposes a sound emission module 700, which includes the sound emission device 100, the specific structure of which refers to the above embodiments, and since the sound emission module 700 employs all the technical solutions of all the above embodiments, it has at least all the beneficial effects of the technical solutions of the above embodiments, which will not be described further here.

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

[0137] To make it easier to understand, the flexible circuit board 600 is used to connect and conduct electricity between the external circuit and the sound emission device 100. The flexible circuit board 600 is provided with an internal pad that is connected and conducted to the second welded surface 317 of the conductive support 3 of the sound emission device 100, and an external pad for connecting to the external terminals.

[0138] In this embodiment, the sound-emitting module 700 further includes a module housing having a cavity, the sound-emitting device 100 is provided within 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 within the cavity of the module housing. Of course, in other embodiments, the flexible circuit board 600 may be entirely provided within the cavity of the module housing, and 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 a positioning side wall is formed on the conductive support 3 that is positioned to fit into the positioning lug 610.

[0140] In this embodiment, as shown in Figure 25, by providing positioning lugs 610 on the flexible circuit board 600, the positioning lugs 610 are brought into positional contact with the positioning side wall of the conductive support 3, thereby enabling electrical connection between the flexible circuit board 600 and the second welded surface 317 of the conductive support 3. Furthermore, problems such as the connection between the flexible circuit board 600 and the second welded surface 317 of the conductive support 3 not being smooth when the flexible circuit board 600 is displaced can be avoided.

[0141] Furthermore, in order to achieve position-restricted 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 understood, the flexible circuit board 600 passes through the concession notch 319 (relief notch 53) and the pressure groove 212 (retraction notch 213) in sequence, that is, the concession notch 319 (relief notch 53) and the pressure groove 212 (retraction notch 213) enable position-restricted mounting of the flexible circuit board 600, make the mating structure between the flexible circuit board 600 and the sound emission device 100 simpler and more compact, and guide the flexible circuit board 600.

[0142] The present invention further proposes an electronic device including the sound-emitting device 100 described above. The specific structure of the sound-emitting device 100 will be described with reference to the above embodiments, and since this electronic device employs all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and therefore will not be described further here.

[0143] In this embodiment, the electronic device further includes an equipment housing, and both the sound emission device 100 and the flexible circuit board 600 are provided within the equipment housing. To make it clear, the electronic device may be, but is not limited to, earphones, mobile phones, computers, tablet terminals, smart wearable devices, etc.

[0144] The present invention further proposes an electronic device including the above-described sound emission module 700. The specific structure of the sound emission module 700 will be described with reference to the above embodiments, and since this electronic device employs all the technical solutions of all the above embodiments, it has at least all the beneficial effects of the technical solutions of the above embodiments, and therefore will not be described further here.

[0145] To ensure clarity, the electronic device may be, but is not limited to, earphones, mobile phones, computers, tablet devices, smart wearable devices, etc. In this embodiment, the electronic device further includes an electronic housing, and the module 700 is provided within the electronic housing.

[0146] The foregoing describes only select embodiments of the present invention and does not limit the scope of the patent. Equivalent structural transformations performed using the contents of the specification and accompanying drawings of the present invention, or their direct or indirect application to other related technical fields, are all within the scope of patent protection of the present invention. [Explanation of symbols]

[0147] 100 Sound emitting device 1 Housing 11 Positioning Post 2 Magnetic circuit systems 21 Magnetic yoke 211 Positioning Table 2111 First positioning unit 2112 Second positioning unit 212 Pressure groove 213 Evacuation notch 214 Support groove 215 Positioning notch 22 Central magnetic section 221 Center magnet 222 Center Washer 223 Evacuation area 224 Auxiliary Magnets 23 Side magnetic section 231 Side Magnet 232 Side Washer 24 Magnetic gap 25 mounting holes 3. Conductive support 31 Main body components 311 Location Restriction Table 312 Escape ditch 313 Position regulating protrusion 314 Mounting groove 315 Positioning boss 316 First welding surface 317 Second welding surface 318 Recessed groove 319 Concession notches 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 section 4112 Fixed part 4113 Inner Ring Section 4114 Inner ring pore 412 Skeleton 4121 Assembly holes 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 section 5. Connecting Support 51 Main body 511 Fixed Cavity 52 brackets 53 Relief cutout 54 Positioning groove 600 Flexible Circuit Boards 610 Positioning lugs 700 sound emission modules

Claims

1. A magnetic circuit system provided in a rectangular shape, including a magnetic yoke and a central magnetic portion and side magnetic portions provided on the magnetic yoke, wherein the side magnetic portions are located outside the central magnetic portion and form a magnetic gap surrounding the central magnetic portion, and the magnetic circuit system is provided with mounting holes that penetrate the magnetic yoke and the central magnetic portion. A conductive support provided within the mounting hole, A sound emission device comprising a vibration system including a diaphragm assembly facing the magnetic circuit system, a voice coil with one end connected to the diaphragm assembly and the other end suspended within the magnetic gap, and a damper with one end electrically connected to a pad of the conductive support, the other end connected to the diaphragm assembly, and electrically connected to the lead wires of the voice coil.

2. The side magnetic section includes a side magnet and a side washer provided on the side magnet. The sound emission device according to claim 1, characterized in that the side magnet and the side washer both form a closed annular structure, or the side magnet and the side washer are both multiple and provided in a one-to-one correspondence, and adjacent side magnets are joined at their ends to form a closed annular structure.

3. The sound emission device according to claim 1, characterized in that the magnetic yoke is provided with a positioning table adjacent to the mounting hole, which is connected to the conductive support.

4. The positioning table is formed by bending the magnetic yoke on the side adjacent to the mounting hole, And / or, the positioning table is an annular boss provided so as to encircle the mounting hole, or the positioning table includes a plurality of 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 arranged at an angle, one end of the first positioning portion away from the second positioning portion is connected to the magnetic yoke, the second positioning portion extends away from the central magnetic portion, and the conductive support is provided with a positioning table connected to the second positioning portion in a positioning manner. The sound emission device according to claim 3, wherein the conductive support is further provided with a relief groove corresponding to the positioning table, in which the positioning table is housed.

5. The sound emission device according to claim 1, wherein the magnetic yoke opposite the diaphragm assembly is further provided with a pressure groove for retracting the cable, one end of which communicates with the mounting hole and the other end which extends to the periphery of the magnetic yoke.

6. The pressure grooves are provided at intervals, are provided symmetrically with respect to the mounting holes, and include a plurality of pressure grooves provided radially around the mounting holes. The sound emission device according to claim 5, further characterized in that a retractable notch is provided on the periphery of the magnetic yoke, and one end of the pressure groove away from the mounting hole communicates with the retractable notch.

7. The sound emission device further includes a connecting support provided in the mounting hole, the connecting support is provided with a fixed cavity, and the conductive support is provided within the fixed cavity. A support groove is formed on the side of the magnetic yoke opposite to the diaphragm assembly so as to encircle the mounting hole, the connecting support includes a main body and a bracket encircling the main body, the main body is provided with the fixing cavity, the main body is drilled into the mounting hole, the bracket is housed in the support groove and its position is restricted, and / or the connecting support is further provided with a relief notch communicating with the fixing cavity, the relief notch is used to recede the routing, and / or the inner wall of the fixing cavity is provided with a positioning projection and / or a positioning groove, the periphery of the conductive support is provided with a positioning projection, the conductive support is provided in the fixing cavity and the positioning projection is positionally fitted into the positioning projection and / or the positioning groove, and / or the connecting support is a metal press product, characterized in that

8. The central magnetic section includes a central magnet and a central washer arranged in a stack, the central magnet is interposed between the central washer and the magnetic yoke, and the mounting hole passes through the magnetic yoke, the central magnet and the central washer in sequence. The sound emission device according to claim 1, wherein the central magnetic portion further includes an auxiliary magnet provided in the mounting hole and located between the central magnet and the conductive support, and at least a portion of which is provided in correspondence with 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 magnets are arranged in an annular shape, or the auxiliary magnets are arranged at intervals and include a plurality of auxiliary magnets arranged to encircle the conductive support, The sound emission device according to claim 8, further / 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 away from the diaphragm assembly, with one end communicating with the mounting hole and the other end extending to the periphery of the central washer, forming a retraction area corresponding to the lead wires of the voice coil and / or the damper. And / or, the central magnet is arranged in an annular shape, or the central magnet includes a plurality of central magnets that surround the mounting hole in an annular shape. And / or, the center washer is provided in an annular shape, or the center washer includes a plurality of center washers that surround the mounting hole in an annular shape. The sound emission device according to claim 8, wherein a positioning boss is provided on the side of the conductive support opposite to the damper, which is positioned in contact with the side of the central magnet opposite to the central washer.

11. The conductive support is provided with a first welding surface, which is provided opposite to and facing the damper and connected to the damper, and a second welding surface for connecting to an external power source. The sound emission device according to claim 1, characterized in that the first welding surface is not higher than the surface of the central magnetic portion facing the diaphragm assembly.

12. On the side of the conductive support opposite to the first welded surface, a groove is provided in the bottom wall that forms the second welded surface. The sound-emitting device according to claim 11, wherein the conductive support comprises a main body member and a land piece including a first pad portion and a second pad portion fitted into and connected within the main body member, wherein at least a portion of the first pad portion is exposed to the first weld surface and at least a portion of the second pad portion is exposed to the second weld surface.

13. 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 being electrically connected to the lead wires of the voice coil. The sound emission device according to claim 1, wherein each damper includes, in sequence, a first connection portion connected to the diaphragm assembly and electrically connected to the lead wires of the voice coil, an elastic arm, and a second connection portion connected to the conductive support.

14. The multiple dampers are distributed symmetrically along the long axis and / or short axis of the magnetic path system. And / or, the first connection and the second connection are located in different planes, And / or, the first connecting portion, the elastic arm, and the second connecting portion are integrally molded structures. And / or, the elastic arm has at least one bent portion, The sound emission device according to claim 13, characterized in that a vibration space for retracting the damper is formed between the conductive support and the inner wall of the mounting hole.

15. The diaphragm assembly is A diaphragm is provided opposite the aforementioned magnetic circuit system and has an inner ring hole in the center, A skeleton, wherein the skeleton is provided in the inner ring hole and connected to the diaphragm, the damper is connected to the skeleton, and the skeleton has assembly holes corresponding to the conductive support, The assembly hole is covered with a dome, The sound emission device according to claim 1, characterized in that the voice coil is connected to the diaphragm or the frame.

16. The diaphragm includes a corrugated portion, a fixing portion connected to the outside of the corrugated portion, and an inner ring portion connected to the inside of the corrugated portion, the inner ring portion forming the inner ring hole, the periphery of the skeleton being connected to the inner ring portion and positioned between the voice coil and the inner ring portion, And / or, the frame is provided with a storage groove that encircles the assembly hole, and the dome is positioned within the storage groove. The sound emission device according to claim 15, further / or, a stepped surface is formed on the periphery of the frame, located between the voice coil and the diaphragm, and the side of the diaphragm adjacent to the inner ring hole is supported and connected to the stepped surface.

17. The sound emission device according to claim 15, characterized in that the frame is further provided with a connecting table adjacent to the assembly hole and extending into the mounting hole, and one end of the damper away from the conductive support is connected to the connecting table.

18. The connecting table is formed by bending or stretching the frame on the side adjacent to the assembly hole, And / or, the connection table is an annular boss provided so as to encircle 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, each corresponding to the long axis or short axis of the magnetic path system. The sound emission device according to 17, wherein the connecting table includes a first connecting arm and a second connecting arm arranged at an angle, one end of the first connecting arm away from the second connecting arm is connected to the inner wall of the assembly hole, the second connecting arm extends away from the frame, and one end of the damper away from the conductive support is connected to the second connecting arm, the first connecting arm and the frame.

19. It is a sound emission module, Module housing and A sound emission device according to any one of claims 1 to 18, provided within the module housing, A sound-emitting module characterized by including a flexible circuit board, one end of which is electrically connected to a conductive support of the sound-emitting device and the other end of which is connected to an external power supply.

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 that is positioned to fit into the positioning lug. The sound emission module according to claim 19, wherein the conductive support is further provided with a concession notch corresponding to the flexible circuit board.

21. An electronic device, which includes the sound emission device described in claim 1, Alternatively, the electronic device is characterized in that it includes the sound emission module described in claim 19.

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