Sound production device and electronic equipment

Abstract

The utility model belongs to the technical field of electro-acoustic conversion, and particularly relates to a sound production device and electronic equipment, the sound production device comprises a magnetic circuit system and a vibration system, the magnetic circuit system comprises two magnetic assemblies, and the two magnetic assemblies are arranged along a first direction and are arranged at intervals to form a magnetic gap; the vibration system comprises a diaphragm assembly, a voice coil and two frameworks connected to the diaphragm assembly and the voice coil, the voice coil is flat and is arranged in the magnetic gap, the axial direction of the voice coil is parallel to the first direction, the two frameworks are arranged at the two ends of the voice coil in the second direction, and the second direction is perpendicular to the vibration direction of the diaphragm assembly and the first direction; the vibrating diaphragm assembly comprises a vibrating diaphragm and a vibrating plate connected to the vibrating diaphragm, the vibrating plate is provided with a first reinforcing rib extending towards one side close to the voice coil in a sunken mode, and the first reinforcing rib is connected with the top of the voice coil. According to the utility model, the connection strength of the voice coil and the diaphragm assembly can be improved, thereby preventing the diaphragm assembly from generating segmentation vibration, and improving the sound quality effect of the sound production device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric -acoustic conversion technical field, and specifically relates to a sound production device and electronic equipment. BACKGROUND

[0002] In the related art, the loudspeaker comprises a diaphragm assembly, a flat voice coil and a voice coil support, wherein the axial direction of the voice coil is parallel to the plane where the diaphragm assembly is located, and the voice coil support is connected to the diaphragm assembly by connecting both ends of the voice coil. However, since the voice coil is not directly connected to the diaphragm assembly, the diaphragm assembly is prone to split vibration when the above structure vibrates at high frequency, resulting in poor high-frequency response curve.

[0003] Therefore, in view of the above problems, the utility model is provided. UTILITY MODEL CONTENT

[0004] The utility model discloses a sound production device and electronic equipment to at least partially solve the above technical problems.

[0005] The utility model provides a sound production device, it includes:

[0006] Magnetic circuit system, the magnetic circuit system includes two magnetic components, two the magnetic component is along the first direction arrangement and interval setting to form the magnetic gap;

[0007] Vibration system, including diaphragm assembly, voice coil and the skeleton that is connected to the diaphragm assembly and the voice coil, the voice coil is flat and is located in the magnetic gap, the axial direction of the voice coil is parallel to the first direction, the skeleton is two and is located in the both ends of the voice coil along the second direction, the second direction is perpendicular to the vibration direction of the diaphragm assembly and the first direction, the diaphragm assembly includes diaphragm and the vibration plate that is connected to diaphragm, the vibration plate is equipped with the first reinforcing rib that recesses and extends towards the side close to the voice coil, and the first reinforcing rib is connected with the top of the voice coil.

[0008] The sound production device provided by the utility model can also have the following additional technical features:

[0009] In one specific embodiment of the utility model, the first reinforcing rib is one or more, and the one or more first reinforcing ribs are arranged along the second direction.

[0010] In one specific embodiment of the utility model, the vibration plate is provided with a second reinforcing rib corresponding to the area of the skeleton, the second reinforcing rib is annular and forms a connecting area, and the skeleton is connected and fixed with the connecting area.

[0011] In one specific embodiment of the utility model, the two ends of the first reinforcing rib are connected with the second reinforcing rib, or the first reinforcing rib is arranged at intervals with the two second reinforcing ribs.

[0012] And / or, at least part of the second reinforcing rib protrudes and extends in the direction away from the voice coil to form a mounting groove, and the top of the skeleton is fixed in the mounting groove.

[0013] In one embodiment of the utility model, the vibration system further comprises conductive branches, the conductive branches are two and correspond to the skeleton and are distributed at two ends of the voice coil, the skeleton comprises a first connecting part and a second connecting part and a third connecting part which are separately arranged at two ends of the first connecting part and are respectively bent to two sides of the first connecting part, the two first connecting parts are respectively connected with two side surfaces of the voice coil which are opposite to the voice coil along the first direction, the two second connecting parts are respectively connected with the connecting area, and the two third connecting parts are respectively connected with the two conductive branches.

[0014] In one embodiment of the utility model, the shell further comprises an annular support, the diaphragm is combined with an inner circumferential wall of the annular support, and the diaphragm and the annular support are integrally formed by hot pressing or injection molding.

[0015] In one embodiment of the utility model, the waterproof sealing ring is combined with an outer circumferential wall of the annular support, and the annular support and the waterproof sealing ring are integrally formed.

[0016] In one embodiment of the utility model, each magnetic assembly comprises a first magnetic conducting plate, a first magnet, a second magnetic conducting plate and a second magnet which are sequentially arranged on a side of the first magnetic conducting plate away from the diaphragm, wherein the first magnet and the second magnet of each magnetic assembly are magnetized along the vibration direction of the diaphragm assembly and the magnetization directions are opposite, the magnetization directions of two first magnets and two second magnets opposite to each other along the magnetic gap are opposite.

[0017] Or, each magnetic assembly comprises a first magnetic conducting plate, a first magnet and a second magnet which are sequentially arranged on a side of the first magnetic conducting plate away from the diaphragm, the first magnet is magnetized along the vibration direction of the diaphragm assembly, the second magnet is magnetized along the first direction, the magnetic pole of one end of the second magnet close to the magnetic gap is opposite to the magnetic pole of one end of the first magnet close to the first magnetic conducting plate, the magnetization directions of two first magnets opposite to each other along the magnetic gap are opposite, and the magnetization directions of two second magnets opposite to each other along the magnetic gap are same.

[0018] In one embodiment of the utility model, the opposite ends of the two first magnetic conducting plates are formed with avoiding spaces for avoiding the first reinforcing ribs.

[0019] The utility model discloses a second aspect further provides an electronic equipment, including the sound production device of any one of the preceding description.

[0020] The sound production device provided by the utility model sets up the magnetic circuit system and the vibration system oppositely, and the voice coil of the vibration system is located in the magnetic gap of the magnetic circuit system, so that the voice coil can vibrate in the magnetic gap under the drive of the magnetic circuit system when electrified, and further drives the diaphragm assembly to vibrate and produce sound, so that the sound production device has the sound production function. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed in the specific embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0022] Figure 1 It is a cross-sectional structure schematic view of the sound production device in the embodiment of the utility model;

[0023] Figures 2-4 It is a connection schematic view of the vibration plate and the voice coil in some embodiments of the utility model;

[0024] Figures 5-6 It is a three-dimensional structure schematic view of the vibration plate in an embodiment of the utility model;

[0025] Figure 7 It is Figures 5-6 The bottom view of the vibration plate in the embodiment;

[0026] Figure 8 It is Figures 5-6 The left view of the vibration plate in the embodiment.

[0027] MARKED WITH REFERENCE NUMBERS:

[0028] 100-sound production device;

[0029] 10-housing, 11-ring support, 12-bottom shell, 13-waterproof sealing ring;

[0030] 20 - vibration system, 21 - diaphragm assembly, 211 - diaphragm, 212 - vibrating plate, 213 - first reinforcing rib, 214 - second reinforcing rib, 215 - mounting groove, 22 - voice coil, 23 - skeleton;

[0031] 30 - magnetic circuit system, 31 - magnetic assembly, 311 - first magnetic conducting plate, 312 - first magnet, 313 - second magnetic conducting plate, 314 - second magnet, 32 - magnetic conducting yoke. DETAILED DESCRIPTION

[0032] Example embodiments of the present application will be described herein below with reference to the accompanying drawings. While example embodiments of the present application are illustrated, it is to be understood that the present application is not limited to the example embodiments described herein, but is applicable to any structures, systems, devices, and / or methods consistent with the present application. Like reference numerals can be used to refer to like elements throughout.

[0033] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and the like are to be construed to be inclusive (i.e., to include both instances of open- and closed- ended conditions) unless otherwise indicated as otherwise limited by context. The methods described herein can be implemented by one or more computer programs or software modules that operate to perform the methods.

[0034] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0035] For the sake of description, spatial relative terms can be used herein for describing one element's or feature's relationship to another element or feature as illustrated in the figures, such as "inner", "outer", "inside", "outside", "lower", "below", "upper", "above", and the like. Such spatial relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0036] The utility model embodiment provides a kind of sounding device 100, it can be used in electronic equipment, and make electronic equipment have sounding function.

[0037] In combination Figures 1-8 The sounding device 100 provided by the utility model includes a magnetic circuit system 30 and a vibration system 20, wherein the magnetic circuit system 30 includes two magnetic assemblies 31, which are arranged along a first direction and spaced apart to form a magnetic gap; the vibration system 20 includes a diaphragm assembly 21, a voice coil 22, and a skeleton 23 connected to the diaphragm assembly 21 and the voice coil 22, the voice coil 22 is flat and located in the magnetic gap, the axial direction of the voice coil 22 is parallel to the first direction, the skeleton 23 is two and located at both ends of the voice coil 22 along a second direction, the second direction is perpendicular to the vibration direction of the diaphragm assembly 21 and the first direction; the diaphragm assembly 21 includes a diaphragm 211 and a vibration plate 212 connected to the diaphragm 211, the vibration plate 212 is provided with a first reinforcing rib 213 extending towards the side close to the voice coil 22, and the first reinforcing rib 213 is connected to the top of the voice coil 22.

[0038] Specifically, the sounding device 100 has a width along the first direction and a length along the second direction, for example, the length is greater than the width. In the magnetic circuit system 30, the two magnetic assemblies 31 are arranged side by side along the width direction and form a magnetic gap extending along the length direction. The voice coil 22 in the vibration system 20 is flat and specifically located in the magnetic gap, so that the voice coil 22 can vibrate under the drive of the magnetic circuit system 30 when energized, thereby driving the diaphragm assembly 21 connected thereto to vibrate and sound. By setting the voice coil 22 to be flat, the structure of the sounding device 100 of the utility model is more compact and occupies less assembly space compared to the sounding device with a ring-shaped voice coil and a ring-shaped magnetic gap.

[0039] In the vibration system 20, the voice coil 22 is connected with the diaphragm assembly 21 through the skeletons 23, so that the vertical position depth of the voice coil 22 in the magnetic gap can be adjusted by the skeletons 23, so that the voice coil 22 is in a position where the magnetic induction lines are more concentrated, thereby improving the utilization rate of the magnetic circuit. The skeletons 23 are two and are arranged at the two ends of the voice coil 22 along the second direction. The diaphragm assembly 21 comprises a diaphragm 211 and a vibration plate 212, the diaphragm 211 is arranged in a ring shape, and the vibration plate 212 is arranged in the central region of the diaphragm 211. The skeleton 23 is connected to the corresponding position of the vibration plate 212, so as to realize the first connection of the voice coil 22 and the diaphragm assembly 21. Meanwhile, the vibration plate 212 is provided with a first reinforcing rib 213 extending in a recessed manner towards the side close to the voice coil 22, and the first reinforcing rib 213 is connected with the top of the voice coil 22, so as to realize the second connection of the voice coil 22 and the diaphragm assembly 21. And based on the above two connections, the two ends and the middle part of the voice coil 22 are connected with the diaphragm assembly 21, so that when the voice coil 22 is energized, the voice coil 22 can vibrate together with the vibration assembly, thereby avoiding the diaphragm assembly 21 from generating divided vibration, so as to improve the high frequency effect of the sound generating device 100, thereby improving the sound quality effect of the sound generating device 100.

[0040] The sound generating device 100 provided by the utility model has the sound generating function by arranging the opposite magnetic circuit system 30 and the vibration system 20, and arranging the voice coil 22 of the vibration system 20 in the magnetic gap of the magnetic circuit system 30, so that the voice coil 22 can vibrate in the magnetic gap under the drive of the magnetic circuit system 30 when energized, thereby driving the diaphragm assembly 21 to vibrate and generate sound. Meanwhile, the voice coil 22 is arranged in a flat shape, so that compared with the sound generating device with a ring-shaped voice coil and a ring-shaped magnetic gap, the structure of the sound generating device 100 is more compact, and the occupied assembly space is less. In addition, in the vibration system 20, the two ends of the voice coil 22 are connected with the vibration plate 212 of the diaphragm assembly 21 through the skeletons 23, and the top surface of the voice coil 22 is connected and fixed with the first reinforcing rib 213 arranged on the vibration plate 212, so that the connection strength of the voice coil 22 and the diaphragm assembly 21 can be improved, the consistency of the two when vibrating can be improved, thereby avoiding the diaphragm assembly 21 from generating divided vibration, so as to improve the high frequency effect of the sound generating device 100, thereby improving the sound quality effect of the sound generating device 100.

[0041] In one embodiment, the first reinforcing rib 213 is one or more, and the one or more first reinforcing ribs 213 are arranged in an extending manner along the second direction.

[0042] Specifically, the first reinforcing rib 213 can be one, and the one first reinforcing rib 213 is arranged along the second direction of the vibration plate 212. The first reinforcing rib 213 can also be multiple, for example, the first reinforcing rib 213 is 2, 3, 4, etc., and the multiple first reinforcing ribs 213 are arranged at intervals along the second direction of the vibration plate 212. It can be set as needed. Preferably, one or more first reinforcing ribs 213 are arranged symmetrically about the center line of the vibration plate 212 along the first direction, which can further improve the balance of the voice coil 22 and the vibration plate 212.

[0043] In one embodiment, the vibration plate 212 is provided with a second reinforcing rib 214 corresponding to the area of the skeleton 23, the second reinforcing rib 214 is annular and encloses a connecting area, and the skeleton 23 is connected and fixed with the connecting area. By arranging the annular second reinforcing rib 214 enclosing the connecting area in the area of the vibration plate 212 corresponding to the skeleton 23, the positioning of the skeleton 23 can be realized by the second reinforcing rib 214, thereby improving the positioning accuracy of the skeleton 23 and the vibration plate 212.

[0044] In one embodiment, the two ends of the first reinforcing rib 213 are connected with the second reinforcing rib 214, or the first reinforcing rib 213 is arranged at intervals with two second reinforcing ribs 214. Specifically, when the first reinforcing rib 213 is one, its two ends can be respectively connected with two second reinforcing ribs 214, or arranged at intervals with two second reinforcing ribs 214; when the first reinforcing rib 213 is multiple, the end part of the second reinforcing rib 214 close to the second reinforcing rib 214 at both ends is respectively connected with two second reinforcing ribs 214, or the second reinforcing rib 214 at both ends is arranged at intervals with two second reinforcing ribs 214. It can be selected as needed.

[0045] In one embodiment, at least part of the second reinforcing rib 214 protrudes and extends in a direction away from the voice coil 22 to form a mounting groove 215, and the top of the skeleton 23 is fixed in the mounting groove 215. The mounting groove 215 can store more glue, and enhance the connection stability of the diaphragm 211 and the skeleton 23.

[0046] In one embodiment, the vibration system 20 further comprises a conductive branch, the conductive branch is two and is distributed on both ends of the voice coil 22 corresponding to the skeleton 23; the skeleton 23 comprises a first connecting part and a second connecting part and a third connecting part respectively arranged at both ends of the first connecting part and respectively bent to both sides of the first connecting part, two first connecting parts are located on both sides of the voice coil 22 along the first direction and are respectively connected with two side surfaces of the voice coil 22 away from each other, two second connecting parts are respectively connected with the connecting area, and two third connecting parts are respectively connected with two conductive branches.

[0047] Specifically, at least two electrically connected spot welding pads are arranged on each conductive branch, one of the spot welding pads of each conductive branch is connected with an external power supply wire, and the other spot welding pad of each conductive branch is connected with a lead of the voice coil 22, so that the current flows into the voice coil 22 through one conductive branch and flows out through the other conductive branch, thereby realizing the conduction of the voice coil 22 and the external power supply.

[0048] The skeleton 23 is an integrally formed structure and specifically includes first connecting portions, second connecting portions and third connecting portions, all of which are in plate shapes. The two first connecting portions are located on the two sides of the voice coil 22 along a first direction and are respectively bonded to the two side surfaces of the voice coil 22 which are away from each other. The two second connecting portions are respectively connected with the connecting regions. The two third connecting portions are respectively connected with the two conductive branches.

[0049] The embodiment solves the connection problem of the voice coil 22 and the external power supply by the above arrangement, and improves the balance of the voice coil 22, thereby reducing the polarization phenomenon of the vibration system 20.

[0050] In one embodiment, the vibration plate 212 is hot-pressed or injection molded by using one of magnesium-aluminum alloy, aluminum, polyethylene naphthalate, polyethylene terephthalate, liquid crystal polymer or polyetherimide. Alternatively, the diaphragm 211 can be hot-pressed or injection molded by using one of silicone rubber, AEM rubber or ACM rubber. Specifically, the prepared vibration plate 212 is placed as an insert in a mold, and then the diaphragm 211 is formed, so that the vibration plate 212 and the diaphragm 211 are formed as an integrated structure.

[0051] In one embodiment, the shell 10 is further included, and the shell 10 includes the annular support 11. The diaphragm 211 is combined with the inner circumferential wall of the annular support 11, and the diaphragm 211 is integrally hot-pressed or injection molded with the annular support 11.

[0052] The vibration system 20 and the magnetic circuit system 30 are both fixed to the shell 10. The shell 10 includes the annular support 11 which is made of plastic and can be integrally formed with the diaphragm 211 of the vibration system 20 by an injection molding process. Specifically, the annular support 11 is placed as an insert in a mold, and then the diaphragm 211 is injection molded by injecting raw materials into the mold to form the diaphragm 211. During the injection of the raw materials, the raw materials are combined with the annular support 11, thereby realizing the connection between the two, i.e. combining the diaphragm 211 with the inner circumferential wall of the annular support 11. Alternatively, the diaphragm 211 is integrally formed with the annular support 11 by a hot-pressing process.

[0053] In the embodiment, the diaphragm 211 and the annular support 11 are integrally formed, which can improve the connection stability between the two, and the diaphragm 211 and the annular support 11 do not need to be glued, thereby meeting the high-level waterproofing requirements of electronic devices.

[0054] In one embodiment, a waterproof sealing ring 13 is further included, which is combined with the outer peripheral wall of the annular support 11, and the annular support 11 and the waterproof sealing ring 13 are integrally formed.

[0055] The waterproof sealing ring 13 can be integrally formed with the annular support 11 by injection molding using liquid silicone rubber, or integrally formed with the annular support 11 by hot pressing using one of solid silicone rubber, AEM rubber or ACM rubber. Further, after the waterproof sealing ring 13 is integrally formed with the annular support 11, the diaphragm 211 is combined with the annular support 11 by hot pressing, that is, the diaphragm 211, the annular support 11 and the waterproof sealing ring 13 are integrally formed, and the combined annular support 11 has a higher waterproof level.

[0056] In one embodiment, the shell 10 further includes a bottom shell 12, which is in an annular frame structure and is combined to the side of the annular support 11 facing the magnetic circuit system 30 by bonding or inlaying. The magnetic circuit system 30 and the conductive support sheet are connected in the bottom shell 12.

[0057] In one embodiment, each magnetic assembly 31 includes a first magnetic conducting plate 311, a first magnet 312, a second magnetic conducting plate 313 and a second magnet 314 which are sequentially arranged on the side of the first magnetic conducting plate 311 away from the diaphragm 211; wherein the first magnet 312 and the second magnet 314 of each magnetic assembly 31 are magnetized along the vibration direction of the diaphragm assembly 21 and the magnetization directions are opposite, and the magnetization directions of the two first magnets 312 and the two second magnets 314 opposite to each other along the magnetic gap are opposite.

[0058] Alternatively, each magnetic assembly 31 includes a first magnetic conducting plate 311, a first magnet 312 and a second magnet 314 which are sequentially arranged on the side of the first magnetic conducting plate 311 away from the diaphragm 211; wherein the first magnet 312 is magnetized along the vibration direction of the diaphragm assembly 21, the second magnet 314 is magnetized along the first direction, the magnetic pole of the end of the second magnet 314 close to the magnetic gap is opposite to the magnetic pole of the end of the first magnet 312 close to the first magnetic conducting plate 311, the magnetization directions of the two first magnets 312 opposite to each other along the magnetic gap are opposite, and the magnetization directions of the two second magnets 314 opposite to each other along the magnetic gap are same.

[0059] In this way, the first magnetic gap is formed between the two first magnetic conducting plates 311, and the long side of the voice coil 22 close to the diaphragm 211 is located in the first magnetic gap; the second magnetic gap is formed between the two second magnets 314, and the long side of the voice coil 22 away from the diaphragm 211 is located in the second magnetic gap, and the utilization rate of the magnetic circuit system 30 is higher, and the voice coil 22 can obtain greater driving force.

[0060] Optionally, the first magnetic conductive plate 311 is integrally injection molded with the bottom shell 12, and the first magnet 312, the second magnetic conductive plate 313, or the first magnet 312, the second magnetic conductive plate 313, and the second magnet 314 are sequentially connected to the first magnetic conductive plate 311 by bonding.

[0061] In addition, the two first magnetic conductive plates 311 can also provide support for the diaphragm 211 under high water pressure, thereby protecting the diaphragm 211 from water pressure damage, thereby achieving a high waterproof goal.

[0062] In one embodiment, the magnetic circuit system 30 further comprises a magnetic conductive yoke 32, which is bonded to the sides of the two second magnets 314 away from the first magnet. Optionally, the bottom shell 12 extends along the two ends in the second direction and is connected to the magnetic conductive yoke 32.

[0063] Through the above arrangement, the magnetic circuit system 30 can realize magnetic field closure through the magnetic conductive yoke 32 and the first magnetic conductive plate 311.

[0064] In one embodiment, the opposite ends of the two first magnetic conductive plates 311 each form a clearance space that avoids the first reinforcing rib 213. That is, the distance between the two first magnetic conductive plates 311 is greater than the distance between the two first magnets 312, so that the clearance space is formed, thereby reducing the interference with the first reinforcing rib 213, thereby increasing the vibration range of the vibration plate 212 and improving the sound quality effect of the sound production device 100.

[0065] The second aspect of the utility model further provides an electronic device, which comprises a device shell 10 and the above-mentioned sound production device 100, and the sound production device 100 is arranged in the device shell 10. The specific structure of the sound production device 100 is referred to the structure of the sound production device 100 of the foregoing embodiments. Since the electronic device adopts all the technical solutions of the foregoing embodiments, it at least has all the beneficial effects brought by the technical effects of the foregoing embodiments, which will not be repeated here. Optionally, the electronic device of the utility model can be a mobile phone, a tablet computer, or other portable mobile electronic products, or a watch, a VR, an AR, or other wearable devices, which will not be specifically limited here.

[0066] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A sound producing device, characterized by, The application relates to a loudspeaker, which comprises: a magnetic circuit system, which comprises two magnetic assemblies arranged along a first direction and spaced apart to form a magnetic gap; a vibration system, which comprises a diaphragm assembly, a voice coil and a skeleton connected to the diaphragm assembly and the voice coil, wherein the voice coil is flat and arranged in the magnetic gap, the axial direction of the voice coil is parallel to the first direction, the skeleton is two and arranged at the two ends of the voice coil along a second direction, the second direction is perpendicular to the vibration direction of the diaphragm assembly and the first direction; the diaphragm assembly comprises a diaphragm and a vibration plate connected to the diaphragm, the vibration plate is provided with a first reinforcing rib extending towards the side close to the voice coil, and the first reinforcing rib is connected to the top of the voice coil.

2. The sound production device of claim 1, wherein, The first reinforcing rib is one or more, and the one or more first reinforcing ribs are arranged along the second direction.

3. The sound production device of claim 1, wherein, The vibration plate is provided with a second reinforcing rib corresponding to the area of the skeleton, the second reinforcing rib is annular and encloses a connecting area, and the skeleton is connected and fixed with the connecting area.

4. The sound production device of claim 3, wherein, The two ends of the first reinforcing rib are connected with the second reinforcing rib, or the first reinforcing rib is arranged apart from the two second reinforcing ribs. And / or, at least part of the second reinforcing rib extends towards the direction away from the voice coil to form a mounting groove, and the top of the skeleton is fixed in the mounting groove.

5. The sound production device of claim 3, wherein, The vibration system further comprises two conductive branches corresponding to the skeleton and arranged at the two ends of the voice coil; the skeleton comprises a first connecting part and a second connecting part and a third connecting part arranged apart from the two ends of the first connecting part and respectively bent to the two sides of the first connecting part, the two first connecting parts are located on the two sides of the voice coil along the first direction and respectively connected with the two side surfaces away from the voice coil, the two second connecting parts are respectively connected with the connecting areas, and the two third connecting parts are respectively connected with the two conductive branches.

6. The sound production device of claim 1, wherein, The application further comprises a shell, the shell comprises an annular support, the diaphragm is combined with the inner circumferential wall of the annular support, and the diaphragm and the annular support are integrally formed by hot pressing or injection molding.

7. The sound production device of claim 6, wherein, The application further comprises a waterproof sealing ring combined with the outer circumferential wall of the annular support, and the annular support and the waterproof sealing ring are integrally formed.

8. The sound production device of claim 1, wherein, Each magnetic assembly comprises a first magnetic conducting plate, a first magnet arranged on the side of the first magnetic conducting plate away from the diaphragm, a second magnetic conducting plate and a second magnet, wherein the first magnet and the second magnet of each magnetic assembly are magnetized along the vibration direction of the diaphragm assembly and the magnetization directions are opposite, and the magnetization directions of the two first magnets and the two second magnets opposite to each other along the magnetic gap are opposite. Or, each of the magnetic assemblies comprises a first magnetic conducting plate, a first magnet and a second magnet sequentially arranged on a side of the first magnetic conducting plate away from the diaphragm, wherein the first magnet is magnetized along the vibration direction of the diaphragm assembly, the second magnet is magnetized along the first direction, the magnetic pole of the second magnet close to one end of the magnetic gap is opposite to the magnetic pole of the first magnet close to one end of the first magnetic conducting plate, the magnetization directions of the two first magnets opposite along the magnetic gap are opposite, and the magnetization directions of the two second magnets opposite along the magnetic gap are same.

9. The sound production device of claim 8, wherein, The opposite ends of the two first magnetic conducting plates are formed with avoiding spaces for avoiding the first reinforcing ribs.

10. An electronic device, comprising: The sound production device comprises the diaphragm assembly according to any one of claims 1-9.

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