CN114466293B

CN114466293B - Sound producing device and electronic equipment

Info

Publication number: CN114466293B
Application number: CN202210289539.8A
Authority: CN
Inventors: 蔡晓东; 郎贤忠; 张琳琳
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2024-03-08
Anticipated expiration: 2042-03-23
Also published as: CN114466293A

Abstract

The invention discloses a sound generating device and electronic equipment, wherein the sound generating device comprises a shell, a vibration module and a loudspeaker module, the shell comprises a first shell and a second shell, the first shell is provided with a first installation cavity, the second shell is provided with a second installation cavity, the first shell is connected with the second shell so that the first installation cavity and the second installation cavity are in butt joint communication, the vibration module comprises a coil and a vibrator assembly which are arranged in the first installation cavity, the vibrator assembly is hung in the first installation cavity and is opposite to the coil, the loudspeaker module comprises a vibration system and a magnetic circuit system which are arranged in the second installation cavity, and the magnetic circuit system is connected with one side of the vibrator assembly, which is opposite to the coil, and is opposite to the vibration system. The sound generating device integrates the loudspeaker and the motor, so that the integration level of the sound generating device can be improved, and the occupied space of the sound generating device in electronic equipment is saved.

Description

Sound producing device and electronic equipment

Technical Field

The present invention relates to electroacoustic conversion technology, and in particular, to a sound generating device and an electronic device using the sound generating device.

Background

Electronic product equipment, especially mobile phone products, generally need to have both audio experience and vibrotactile experience functions, the audio experience comes from a loudspeaker device, the tactile vibration experience comes from a motor device, the loudspeaker device and the motor device are respectively and independently arranged in the process of improving user audio and vibrotactile experience in the related art, so that the problems of large occupied space, unsatisfactory layout effect and the like in intelligent terminal equipment are caused, and therefore the user experience of the intelligent terminal is influenced.

Disclosure of Invention

The invention mainly aims to provide a sound generating device and electronic equipment, and aims to provide a sound generating device integrating a loudspeaker and a motor, so that the integration level of the sound generating device can be improved, and the occupied space of the sound generating device in the electronic equipment is saved.

To achieve the above object, the present invention provides a sound emitting device including:

the shell comprises a first shell and a second shell, wherein the first shell is provided with a first installation cavity, the second shell is provided with a second installation cavity, and the first shell is connected with the second shell so that the first installation cavity and the second installation cavity are in butt joint communication;

The vibration module comprises a coil and a vibrator assembly which are arranged in the first mounting cavity, and the vibrator assembly is suspended in the first mounting cavity and is arranged opposite to the coil; and

The loudspeaker module comprises a vibration system and a magnetic circuit system which are arranged in the second mounting cavity, and the magnetic circuit system is connected with one side of the vibrator assembly, which is opposite to the coil, and is opposite to the vibration system;

the coil drives the vibrator assembly to drive the magnetic circuit system to vibrate synchronously.

In an embodiment, the first housing includes a bottom plate and a side plate disposed at a periphery of the bottom plate, and the side plate and the bottom plate enclose to form the first mounting cavity;

the coil is arranged on the bottom plate, and the vibrator assembly is suspended on the side plate and is spaced from the bottom plate.

In one embodiment, the vibrator assembly includes:

the balance weight seat is provided with a hollow cavity corresponding to the coil, and the magnetic circuit system is connected to one side of the balance weight seat, which is opposite to the coil;

one end of the elastic piece is connected with the counterweight seat, and the other end of the elastic piece is connected with the side plate so that the counterweight seat is suspended in the first mounting cavity; and

The magnet assembly is arranged in the hollow cavity and matched with the counterweight seat to form a containing groove, and at least part of the coil is contained in the containing groove.

In an embodiment, a fixed slot is arranged on one side of the counterweight seat, which is opposite to the coil, the hollow cavity penetrates through the bottom wall of the fixed slot, the vibrator assembly further comprises a magnetic conduction plate arranged in the fixed slot, and the magnet assembly and the magnetic circuit system are respectively fixed on the surfaces of two opposite sides of the magnetic conduction plate.

In an embodiment, a side of the magnetic conduction plate facing the magnetic circuit system is flush with a side of the counterweight seat facing the magnetic circuit system.

In an embodiment, the elastic member includes two elastic pieces, and the two elastic pieces are symmetrically disposed on opposite sides of the counterweight base.

In one embodiment, the shape of the elastic sheet is a V-shape, a U-shape, a W-shape or a Y-shape;

and/or, one end of the elastic sheet, which is far away from the counterweight seat, is connected with the side plate through a connecting sheet.

In an embodiment, an end of the second housing facing the first housing is provided with an assembling groove, and an end of the side plate away from the bottom plate is inserted into the assembling groove.

In an embodiment, the first shell and the second shell are in plug-in fit to define a glue storage groove, and sealant is filled in the glue storage groove;

or, the second shell and the second shell are welded and connected.

In one embodiment, the vibration system comprises a diaphragm assembly and a voice coil connected to the diaphragm assembly, wherein the diaphragm assembly is connected with one end of the second shell far away from the first shell;

the magnetic circuit system comprises a central magnetic circuit part and two side magnetic circuit parts, wherein the central magnetic circuit part and the two side magnetic circuit parts are arranged on the outer side of the central magnetic circuit part, the side magnetic circuit parts are spaced from the central magnetic circuit part to form a magnetic gap, and one end, far away from the vibrating diaphragm assembly, of the voice coil is suspended in the magnetic gap.

In one embodiment, the side magnetic circuit part comprises two side magnetic circuit parts, the two side magnetic circuit parts are arranged on two sides of the long axis side of the central magnetic circuit part, and the extension direction of the magnetic gap formed by the two side magnetic circuit parts and the central magnetic circuit part is consistent with the vibration movement direction of the vibrator assembly;

and/or, the center magnetic circuit part comprises a center magnet and a center washer which are arranged on the vibrator assembly, the center washer is arranged on one side of the center magnet, which is opposite to the vibrator assembly, the side magnetic circuit part comprises a side magnet and Bian Huasi which are arranged on the vibrator assembly, the Bian Huasi is arranged on one side of the side magnet, which is opposite to the vibrator assembly, and the magnetizing direction of the center magnetic circuit part is opposite to the magnetizing direction of the side magnetic circuit part.

In one embodiment, the second housing comprises:

the main body part is provided with the second mounting cavity, and two notches are formed in the main body part corresponding to the two side magnetic circuit parts; and

two metal plates, each of which is arranged at the notch and corresponds to and is spaced from the side magnetic circuit part;

wherein the main body part and the two metal plates are in butt joint with the first shell.

In an embodiment, the vibration system further includes a centering support, one end of the centering support is connected to one end of the voice coil away from the diaphragm assembly, and the other end of the centering support is connected to the main body.

In an embodiment, the casing further includes a middle frame disposed at the periphery of the diaphragm assembly, the middle frame is connected to a side of the main body portion away from the first housing, and the diaphragm assembly includes:

the vibrating diaphragm comprises a central part, a folded ring part arranged around the central part and a fixed part connected to the outer side of the folded ring part, and the periphery of the fixed part is connected with the inner wall of the middle frame; and

A reinforcing member provided in the central portion;

wherein the voice coil is connected with the central part or the reinforcing member.

In an embodiment, the inner wall of the main body part is convexly provided with a limiting baffle, the limiting baffle is opposite to the edge position of the reinforcing piece and is positioned between the ring folding part and the centering support piece, the limiting baffle surrounds to form a through opening, and the voice coil penetrates through the through opening to be suspended in the magnetic gap.

In an embodiment, a conductive metal sheet is further disposed in the main body, an inner bonding pad is disposed at one end of the conductive metal sheet, the inner bonding pad is exposed at one side of the limiting baffle plate, which is opposite to the ring folding portion, and is connected with the centering support sheet in a welding manner, an outer bonding pad is disposed at the other end of the conductive metal sheet, and the outer bonding pad is exposed at the outer wall of the main body and is used for being connected with an external circuit.

In one embodiment, the diaphragm and the reinforcing member are integrally injection molded;

and/or, the vibrating diaphragm and the middle frame are integrally injection molded;

and/or, the reinforcing piece and the central part are integrally formed by hot press molding;

and/or, one of the fixing part and the inner wall of the middle frame is provided with a limiting boss, and the other one of the fixing part and the inner wall of the middle frame is provided with a limiting groove, and the limiting boss is limited in the limiting groove;

and/or the middle frame is in sealing connection or welding connection with the main body part;

And/or, one of the middle frame and the main body part is provided with a limiting groove, the other one of the middle frame and the main body part is provided with a limiting column, and the limiting column is limited in the limiting groove;

and/or the shell further comprises a front cover, wherein the front cover is arranged on one side of the vibrating diaphragm, which is opposite to the voice coil, and is connected with the middle frame;

and/or the main body part and the two metal plates are injection molded.

The invention also provides electronic equipment, which comprises an equipment shell and the sounding device, wherein the sounding device is arranged on the equipment shell.

According to the sound production device, the shell is arranged to be the first shell and the second shell, the first installation cavity is formed in the first shell, the second installation cavity is formed in the second shell, and therefore when the first shell is connected with the second shell, the first installation cavity is in butt joint communication with the second installation cavity, the first shell is used for installing and fixing and protecting the vibration module conveniently, the second shell is used for installing and fixing and protecting the speaker module, meanwhile, the first installation cavity is used for being in butt joint communication with the second installation cavity, the magnetic circuit system of the speaker module is connected with one side, facing away from the coil, of the vibrator module, and therefore the vibration module and the speaker module are integrated into an integrated structure, the integration level of the sound production device is effectively improved, the occupied space of the sound production device in electronic equipment is saved, the shell is arranged to be in a split structure, the vibration module and the speaker module are convenient to install, and the assembly efficiency is improved; meanwhile, the coil of the vibration module is arranged in the first mounting cavity, the vibrator assembly is suspended in the first mounting cavity and is arranged opposite to the coil, so that the coil can be used for driving the vibrator assembly to vibrate in the first mounting cavity and driving the magnetic circuit system to synchronously vibrate in the second mounting cavity, the motor vibration function is realized, and the sounding device has the vibration touch experience function; the magnetic circuit of the loudspeaker module is further arranged on one side of the vibrator assembly, which is opposite to the vibration system, on one hand, the sound production function of the loudspeaker module is realized by utilizing the cooperation of the vibration system and the magnetic circuit, and on the other hand, the magnetic circuit is driven to vibrate synchronously by utilizing the coil driving vibrator assembly, so that the vibration module and the loudspeaker module of the sound production device can work respectively and do not interfere with each other, the sound production device has the functions of audio experience and vibration touch experience, and the experience of a user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a sound generating apparatus according to an embodiment of the present invention;

FIG. 2 is an exploded view of a sound generating apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a sound generating apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a structure of a sound generating apparatus according to another embodiment of the present invention;

FIG. 5 is an exploded view of a portion of a sound generating apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic view of a part of a structure of a housing according to an embodiment of the invention;

FIG. 7 is a schematic diagram of a second housing according to an embodiment of the invention;

fig. 8 is a schematic partial cross-sectional view of a diaphragm assembly according to an embodiment of the invention.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Meanwhile, the meaning of "and/or" and/or "appearing throughout the text is to include three schemes, taking" a and/or B "as an example, including a scheme, or B scheme, or a scheme that a and B satisfy simultaneously.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

It can be appreciated that in some intelligent wearable devices, if the organic combination of the speaker and the vibration function of the vibration motor can be realized under the condition that the space size of the whole machine is limited, a large amount of space is saved for the space of the whole machine. Based on the above concepts and problems, the present invention proposes a sound generating apparatus 100. The sound generating apparatus 100 may be applied to an electronic device, which may be a mobile phone, a wearable device, or the like, and is not limited herein.

The sound generating apparatus 100 in the present application functionally integrates both the speaker and the vibration motor, not just the topology of the two functional products, but rather the magnetic circuit assembly coupled together, so that the spatial dimension of the integrated product is much smaller than the simple volume of the addition of the two. It can be appreciated that the sound generating device 100 of the present application couples the functions of the speaker sound generating device and the vibration motor together, so that the function of the speaker can be realized, the vibration function of the vibration motor can be realized, and the magnetic circuit assembly in the product structure is also the vibrator for realizing the vibration function of the vibration motor when the function of the speaker is realized.

Referring to fig. 1 to 8 in combination, in the embodiment of the invention, the sound generating apparatus 100 includes a housing 1, a vibration module 2 and a speaker module 3, wherein the housing 1 includes a first housing 11 and a second housing 12, the first housing 11 is provided with a first mounting cavity 111, the second housing 12 is provided with a second mounting cavity 122, the first housing 11 is connected with the second housing 12 so that the first mounting cavity 111 and the second mounting cavity 122 are in butt-joint communication, the vibration module 2 includes a coil 21 and a vibrator assembly 22 disposed in the first mounting cavity 111, the vibrator assembly 22 is suspended in the first mounting cavity 111 and is disposed opposite to the coil 21, the speaker module 3 includes a vibration system 31 and a magnetic circuit system 32 disposed in the second mounting cavity 122, and the magnetic circuit system 32 is connected with a side of the vibrator assembly 22 opposite to the coil 21 and is opposite to the vibration system 31; the coil 21 drives the vibrator assembly 22 to drive the magnetic circuit system 32 to vibrate synchronously.

In the present embodiment, the housing 1 of the sound generating apparatus 100 is used for mounting, fixing and supporting the components such as the vibration module 2 and the speaker module 3, that is, the housing 1 provides a mounting base for the components such as the vibration module 2 and the speaker module 3. In order to facilitate the installation and protection of the vibration module 2, the speaker module 3, etc., the housing 1 has an installation cavity. Alternatively, the structure of the housing 1 may be a mounting case, a box, or a case having a mounting cavity, or the like.

As shown in fig. 1 to 4, 6 and 7, the housing 1 includes a first housing 11 and a second housing 12, that is, the housing 1 is provided in a split manner, and the two parts of the first housing 11 and the second housing 12 are connected to form an integral structure.

Optionally, the first casing 11 and the second casing 12 of the casing 1 are metal pieces, and the first casing 11 and the second casing 12 are hermetically matched to define a mounting cavity, that is, the first casing 11 and the second casing 12 are made of metal materials, so that the whole structure of the casing 1 is made of metal materials.

It will be appreciated that the first shell 11 and the second shell 12 of the housing 1 may be made of thinner steel sheets, so that the housing 1 may be designed thinner, thereby greatly increasing the volume of the cavity in the housing 1, effectively increasing the volumes of the vibration module 2 and the speaker module 3 in the mounting cavity 11, and further improving the acoustic performance of the sound generating device 100. Meanwhile, the speaker module 3 is fixed in the housing 1, so that heat dissipation can be realized through the housing 1 made of metal materials, and the heat dissipation performance of the sound generating device 100 is improved.

In this embodiment, the first shell 11 and the second shell 12 of the housing 1 may be integrally connected by a detachable connection structure, for example, a snap connection, a plug connection, a screw connection, a pin connection, or the like, which is not limited herein. It will be appreciated that the first housing 11 is provided with a first mounting cavity 111 and the second housing 12 is provided with a second mounting cavity 122, the first and second mounting cavities 111, 122 being in abutting communication to form a mounting cavity when the first housing 11 is connected to the second housing 12.

It can be understood that the vibration module 2 is mounted and fixed in the first mounting cavity 111 of the first housing 11, that is, the coil 21 of the vibration module 2 is disposed in the first mounting cavity 111, and the vibrator assembly 22 is suspended in the first mounting cavity 111 and disposed opposite to the coil 21. The speaker module 3 is installed and fixed in the second installation cavity 122 of the second housing 12, that is, the vibration system 31 of the speaker module 3 is disposed in the second installation cavity 122, and the magnetic circuit system 32 is connected with one side of the vibrator assembly 22 opposite to the coil 21 and opposite to the vibration system 31, so that the convenience in assembling the vibration module 2 and the speaker module 3 can be improved.

In this embodiment, the vibration module 2 includes the coil 21 and the vibrator assembly 22, so that the vibrator assembly 22 is suspended in the first mounting cavity 111 and is disposed opposite to the coil 21, so that after the current is introduced into the coil 21, the coil 21 can drive the vibrator assembly 22 to vibrate in the first mounting cavity 111 and drive the magnetic circuit system 32 to vibrate synchronously in the second mounting cavity 122, thereby realizing the motor vibration function, and further enabling the sound generating device 100 to have the haptic vibration experience function. It can be appreciated that the speaker module 3 may be a sounding unit, and the speaker module 3 includes a vibration system 31 and a magnetic circuit system 32, so as to utilize a matching structure of the vibration system 31 and the magnetic circuit system 32 to realize a sounding function, so that the sounding device 100 has an audio experience function.

It can be understood that the magnetic circuit system 32 is arranged on one side of the vibrator assembly 22, which is opposite to the coil 21, and the magnetic circuit system 32 is driven to vibrate synchronously while the coil 21 drives the vibrator assembly 22 to vibrate, so that the sound generating device 100 integrates the vibration module 2 and the speaker module 3 into a whole, the two topological structures of the two functional products of the haptic vibration experience function and the audio experience function are realized, the magnetic circuit system 32 of the speaker module 3 is arranged and coupled on the vibrator assembly 22 of the vibration module 2, and the volume of the integrated sound generating device 100 is effectively reduced, namely, the space size of the integrated sound generating device 100 is far smaller than the added volume of the simple vibration module 2 and the speaker module 3. Meanwhile, when the function of the speaker module 3 is realized, the magnetic circuit system 32 in the speaker module 3 is also a part of the vibration of the vibrator assembly 22 in the vibration module 2, so that the simultaneous action of the functions of the vibration module 2 and the speaker module 3 can be realized.

According to the sound generating device 100, the shell 1 is arranged to be the first shell 11 and the second shell 12, the first installation cavity 111 is arranged on the first shell 11, the second installation cavity 122 is arranged on the second shell 12, so that when the first shell 11 is connected with the second shell 12, the first installation cavity 111 and the second installation cavity 122 are in butt joint communication, the first shell 11 is used for installing and fixing the vibration module 2 and protecting the loudspeaker module 3 conveniently, the second shell 12 is used for installing and fixing the loudspeaker module 3, meanwhile, the first installation cavity 111 and the second installation cavity 122 are used for in butt joint communication, the magnetic circuit system 32 of the loudspeaker module 3 is connected with one side, facing away from the coil 21, of the vibrator assembly 22, and therefore the vibration module 2 and the loudspeaker module 3 are integrated into a whole structure, the integration degree of the sound generating device 100 is effectively improved, the occupied space of the sound generating device 100 in electronic equipment is saved, and the shell 1 is arranged to be in a split structure, so that the vibration module 2 and the loudspeaker module 3 are convenient to install; meanwhile, the coil 21 of the vibration module 2 is arranged in the first mounting cavity 111, and the vibrator assembly 22 is suspended in the first mounting cavity 111 and is opposite to the coil 21, so that the coil 21 can be used for driving the vibrator assembly 22 to vibrate in the first mounting cavity 111 and driving the magnetic circuit system 32 to synchronously vibrate in the second mounting cavity 122, so that a motor vibration function is realized, and the sound generating device 100 has a vibration touch experience function; the magnetic circuit 32 of the loudspeaker module 3 is further arranged on one side of the vibrator assembly 22, which is opposite to the coil 21, and is opposite to the vibration system 31, on one hand, the sound production function of the loudspeaker module 3 is realized by utilizing the cooperation of the vibration system 31 and the magnetic circuit 32, and on the other hand, the vibrator assembly 22 is driven by the coil 21 to drive the magnetic circuit 32 to vibrate synchronously, so that the vibration module 2 and the loudspeaker module 3 of the sound production device 100 can work respectively and do not interfere with each other, the sound production device 100 has the functions of audio experience and vibration touch experience, and the experience of a user is improved.

In one embodiment, as shown in fig. 1 to 4 and 6, the first housing 11 includes a bottom plate 112 and a side plate 113 disposed at the periphery of the bottom plate 112, where the side plate 113 and the bottom plate 112 enclose a first mounting cavity 111; the coil 21 is provided on the bottom plate 112, and the vibrator assembly 22 is suspended from the side plates 113 and spaced apart from the bottom plate 112.

In the present embodiment, the coil 21 and the vibrator assembly 22 of the vibration module 2 are conveniently installed and fixed by providing the first housing 11 in a two-part structure of the bottom plate 112 and the side plate 113. It can be understood that the side plate 113 has a cylindrical structure with two open ends, the bottom plate 112 covers the opening at one end of the side plate 113, and the opening at the other end of the side plate 113 is in butt-joint communication with the second housing 12.

It will be appreciated that the bottom panel 112 and the side panels 113 may be welded or sealed, etc., without limitation. The side plate 113 is connected to the periphery of the bottom plate 112, and the side plate 113 and the bottom plate 112 enclose a first mounting cavity 111. Alternatively, the bottom panel 112 and the side panel 113 are integrally formed. In this embodiment, the coil 21 is disposed on the bottom plate 112, the vibrator assembly 22 is suspended on the side plate 113 and spaced from the bottom plate 112, and the vibrator assembly 22 is disposed opposite to the coil 21, so that the coil 21 can conveniently drive the vibrator assembly 22 to vibrate in the first mounting cavity 111. To further increase the volume of the first mounting cavity 111, the first housing 11 may alternatively be a metal piece, for example stamped and formed from sheet metal.

In this embodiment, the second housing 12 is connected to an end of the side plate 113 away from the bottom plate 112, so that the second mounting cavity 122 is communicated with the first mounting cavity 111 through an opening at one end of the side plate 113, thereby facilitating connection between the magnetic circuit system 32 of the speaker module 3 and a side of the vibrator assembly 22 facing away from the coil 21, so that the vibrator assembly 22 is driven to vibrate in the first mounting cavity 111 by the coil 21, and the magnetic circuit system 32 is driven to vibrate synchronously in the second mounting cavity 122, so as to realize a motor vibration function.

In an embodiment, the vibrator assembly 22 includes a weight seat 221, an elastic member 222 and a magnet assembly 223, wherein the weight seat 221 is provided with a hollow cavity 2211 corresponding to the coil 21, the magnetic circuit system 32 is connected to one side of the weight seat 221 opposite to the coil 21, one end of the elastic member 222 is connected to the weight seat 221, the other end of the elastic member 222 is connected to the side plate 113, so that the weight seat 221 is suspended in the first mounting cavity 111, the magnet assembly 223 is disposed in the hollow cavity 2211 and cooperates with the weight seat 221 to form a receiving groove 2231, and at least a portion of the coil 21 is received in the receiving groove 2231.

In this embodiment, as shown in fig. 2 to 4, the weight seat 221 is suspended in the first installation cavity 111 by using the elastic member 222, that is, one end of the elastic member 222 is connected with the weight seat 221, and the other end of the elastic member 222 is connected with the cavity wall (i.e., the side plate 113) of the first installation cavity 111, so when the coil 21 drives the weight seat 221 to drive the magnetic circuit system 32 to vibrate synchronously, the elastic member 222 provides a supporting installation foundation for the weight seat 221, and is also used for providing an elastic buffering force to prevent the vibration force of the weight seat 221 from being too large to damage other components of the sound generating device 100.

It will be appreciated that the weight seat 221 is not only used for installing the fixed magnet assembly 223, but also used for supporting the fixed magnetic circuit system 32, that is, the magnet assembly 223 and the magnetic circuit system 32 are integrated into a unitary structure by using the weight seat 221. The elastic members 222 are respectively connected to opposite sides of the weight holder 221, so that the weight holder 221 is mounted and suspended in the first mounting cavity 111 by the elastic members 222.

In this embodiment, the hollow cavity 2211 is formed on the counterweight base 221, so that the hollow cavity 2211 is used to conveniently install and fix the magnet assembly 223, and the coil 21 and the magnet assembly 223 are arranged opposite to each other, so that after current is introduced into the coil 21, the coil is positioned in a magnetic field formed by the magnet assembly 223, and the driving magnet assembly 223 drives the counterweight base 221 and the magnetic circuit system 32 to perform vibration movement. It will be appreciated that the resilient member 222 also serves to provide a directional force for the overall movement of the weight seat 221.

It is understood that the hollow cavity 2211 may be a groove structure, a through groove structure, a concave cavity structure, or the like provided in the weight seat 221, which is not limited herein. Through locating the magnet subassembly 223 in cavity 2211 to form accommodation groove 2231 with counter weight seat 221 cooperation, make at least partial coil 21 hold in accommodation groove 2231, thereby utilize accommodation groove 2231 dodge the coil 21, make counter weight seat 221 and coil 21's setting compacter, effectively improve space utilization. And the weight seat 221 also plays a weight and load bearing role.

In one embodiment, the magnet assembly 223 includes a plurality of magnet blocks 2232. It can be appreciated that the plurality of magnetic blocks 2232 are disposed in the hollow cavity 2211 of the weight holder 221. The plurality of magnetic blocks 2232 may be integrally connected by gluing, or may be integrally formed by providing a connecting member, which is not limited herein. Alternatively, the arrangement direction of the plurality of magnetic blocks 2232 is the same as the vibration moving direction of the vibrator assembly 22.

In an embodiment, the number of coils 21 may be one or more. Optionally, the number of coils 21 is N, and the number of magnetic blocks 2232 is n+1, where N is greater than or equal to 1. It will be appreciated that the arrangement is such that the magnet assembly 223 is capable of providing a sufficient magnetic field to the coil 21 to ensure that the coil 21 drives the weight seat 221 to move the magnetic circuit system 32 in a vibratory motion. In the present embodiment, the magnetizing directions of two adjacent magnetic blocks 2232 in the plurality of magnetic blocks 2232 are opposite.

Alternatively, when the number of the coils 21 is plural, the arrangement direction of the plurality of magnetic blocks 2232 is the same as the arrangement direction of the plurality of coils 21, so that the plurality of magnetic blocks 2232 are opposite to the plurality of coils 21.

It is understood that the elastic member 222 may be a member having an elastic expansion function, such as a spring sheet, a spring or other elastic members, which are not limited herein. In the present embodiment, the elastic member 222 is connected to the outer peripheral wall of the weight holder 221. The elastic member 222 may be a unitary structure or a plurality of separate structures, and is not limited herein.

In an embodiment, the elastic member 222 includes two elastic pieces 2221, the two elastic pieces 2221 are symmetrically disposed on opposite sides of the weight seat 221, one end of each elastic piece 2221 is connected to the weight seat 221, and the other end of each elastic piece 2221 is connected to the wall of the installation cavity 11.

In this embodiment, as shown in fig. 2 and 3, by providing the elastic member 222 as the elastic piece 2221, on the one hand, the elastic piece 2221 can improve the installation stability of the weight seat 221, so as to ensure that the weight seat 221 hangs in the first installation cavity 111; on the other hand, the elastic piece 2221 may also generate an elastic buffering force and an directional moving force for the vibration of the weight seat 221.

It can be appreciated that the two spring plates 2221 are symmetrically disposed on opposite sides of the weight seat 221. The connection direction of the two elastic pieces 2221 is the same as the arrangement direction of the plurality of magnetic blocks 2232, that is, the moving direction of the coil 21 driving the magnet assembly 223 to drive the counterweight base 221 and the magnetic circuit system 32 is the same as the connection direction of the two elastic pieces 2221. In the present embodiment, the coil 21 drives the magnet assembly 223 to drive the counterweight base 221 and the magnetic circuit system 32 to move in a horizontal direction in a vibrating manner.

Optionally, the external shape of the elastic piece 2221 is V-shaped, U-shaped, W-shaped or Y-shaped. It is to be understood that the elastic piece 2221 may be made of metal or plastic, which is not limited herein. Optionally, the elastic piece 2221 and the counterweight base 221 are integrally formed, so that structural strength and connection stability can be improved.

In one embodiment, an end of the spring piece 2221 away from the weight seat 221 is connected to the side plate 113 through a connecting piece 2222. It can be appreciated that, as shown in fig. 2 and 3, by providing the connection piece 2222, the elastic piece 2221 is made to increase the contact area with the side plate 113 of the first housing 11 by the connection piece 2222, so as to improve the connection stability.

In an embodiment, as shown in fig. 1, 2, 4 and 6, the vibration module 2 further includes a circuit board 23, one end of the side board 113 adjacent to the bottom board 112 is provided with a communication port 114 communicating with the first mounting cavity 111, and one end of the circuit board 23 passes through the communication port 114 to extend into the first mounting cavity 111 and is electrically connected to the coil 21.

It will be appreciated that by providing the circuit board 23 such that one end of the circuit board 23 extends into the first mounting cavity 111 through the communication port 114 and is electrically connected to the coil 21, an external circuit can be electrically connected to the coil 21 by the circuit board 23. Optionally, the circuit board 23 is a flexible circuit board, so that one end of the circuit board 23 can be adhered to the bottom plate 112 of the first housing 11, and the other end of the circuit board 23 is bent and extended to the outer side of the side plate 113 of the first housing 11, so as to realize conduction.

In an embodiment, a fixed slot 2212 is disposed on a side of the counterweight base 221 facing away from the coil 21, the hollow cavity 2211 penetrates through a bottom wall of the fixed slot 2212, the vibrator assembly 22 further includes a magnetic conductive plate 224 disposed in the fixed slot 2212, and the magnet assembly 223 and the magnetic circuit system 32 are respectively fixed on surfaces of two opposite sides of the magnetic conductive plate 224.

In this embodiment, as shown in fig. 2 to 5, by disposing the magnetic conductive plate 224 on the counterweight base 221, the magnet assembly 223 and the magnetic circuit system 32 are respectively fixed on two opposite surfaces of the magnetic conductive plate 224, so that the magnetic circuit system 32 is fixedly integrated on the counterweight base 221 through the magnetic conductive plate 224, and the magnetic conductive and magnetic focusing effects on the magnetic circuit system 32 are conveniently achieved by using the magnetic conductive plate 224; meanwhile, the magnet assembly 223 can be more firmly arranged on the counterweight base 221 through the magnetic conduction plate 224, and the magnetic conduction and magnetic concentration effects on the magnet assembly 223 are realized through the magnetic conduction plate 224.

It can be understood that taking the speaker module 3 as an example, when the magnetic conductive plate 224 is provided, the BL value of the speaker module 3 is 0.19Tm; when the magnetically permeable plate 224 is not provided, the BL value of the speaker module is 0.17Tm. Therefore, after the magnetic conductive plate 224 is disposed, the BL value of the speaker module can be improved by more than 10%, so as to effectively improve the acoustic performance of the sound generating apparatus 100. Taking vibration module 2 as an example, when the magnetic conductive plate 224 is provided, the BL value of the vibration module is 0.22Tm; when the magnetically permeable plate 224 is not provided, the BL value of the vibration module is 0.18Tm. Therefore, after the magnetic conductive plate 224 is disposed, the BL value of the vibration module can be improved by more than 20%, so as to effectively improve the acoustic performance of the sound generating apparatus 100. Meanwhile, the magnetic conductive plate 224 can effectively avoid the influence of mutual weakening of the magnetic field between the magnet assembly 223 and the magnetic circuit system 32, so that the acoustic performance of the sound generating device 100 can be further improved.

In this embodiment, as shown in fig. 2 and 3, the fixing groove 2212 is provided on the counterweight base 221, so that the fixing groove 2212 is used to fix and limit the magnetic conductive plate 224, thereby improving the installation stability. It can be appreciated that the hollow cavity 2211 penetrates through the bottom wall of the fixed slot 2212, so that one side of the magnetic conductive plate 224 facing the bottom wall of the fixed slot 2212 is connected with the magnet assembly 223, so that the installation stability of the magnet assembly 223 and the counterweight seat 221 can be further improved, and the magnetic conductive and magnetic focusing effects on the magnet assembly 223 can be realized by using the magnetic conductive plate 224. Optionally, the area of the magnetically permeable plate 224 is greater than the area of the magnet assembly 223.

In one embodiment, the thickness of the magnetic conductive plate 224 is defined as d, the height of the magnet assembly 223 is defined as H1, and the height of the magnetic circuit system 32 is defined as H2, wherein (h1+h2)/d <2.

In this embodiment, in order to reduce the mutual weakening effect of the magnet assembly 223 and the magnetic circuit system 32, by adjusting the thickness d of the magnetic conductive plate 224, when the ratio of the sum of the height H1 of the magnet assembly 223 and the height H2 of the magnetic circuit system 32 to the thickness d of the magnetic conductive plate 224 is smaller than 2, the BL value of the speaker module is reduced to 99.8%, and the magnet assembly 223 of the vibration module is reduced to 99.6%, so that the mutual weakening of the magnetism between the magnet assembly 223 and the magnetic circuit system 32 can be effectively avoided, thereby affecting the BL value of the sound generating apparatus 100.

In an embodiment, a side of the magnetic conductive plate 224 facing the magnetic circuit system 32 is disposed flush with a side of the weight seat 221 facing the magnetic circuit system 32. It can be appreciated that the arrangement can facilitate the connection of the magnetic circuit 32 with the magnetic conductive plate 224, and the portion of the magnetic circuit 32 beyond the magnetic conductive plate 224 is connected with the counterweight base 221, so as to improve the connection stability of the magnetic circuit 32. Optionally, the area of the magnetic circuit 32 is larger than the area of the magnetic plate 224.

In one embodiment, as shown in fig. 6 and 7, an end of the second housing 12 facing the first housing 11 is provided with a fitting groove 123, and an end of the side plate 113 remote from the bottom plate 112 is inserted into the fitting groove 123. It will be appreciated that such an arrangement allows both a positioning assembly of the second housing 12 and the first housing 11 and an improved connection stability and sealing effect. Alternatively, the second housing 12 and the side plate 113 of the first housing 11 are welded.

In one embodiment, as shown in fig. 6 and 7, the first housing 11 and the second housing 12 are in plug-in fit to define a glue storage groove 115, and the glue storage groove 115 is filled with sealant. It will be appreciated that, by such arrangement, the sealing property of the junction of the second housing 12 and the first housing 11 can be further improved by the sealant.

In one embodiment, the vibration system 31 includes a diaphragm assembly 311 and a voice coil 312 connected to the diaphragm assembly 311, wherein the diaphragm assembly 311 is connected to an end of the second housing 12 away from the first housing 11; the magnetic circuit system 32 includes a central magnetic circuit portion 321 provided to the vibrator assembly 22 and two side magnetic circuit portions 322, the side magnetic circuit portions 322 being provided outside the central magnetic circuit portion 321 and spaced apart from the central magnetic circuit portion 321 to form a magnetic gap 323, and an end of the voice coil 312 remote from the diaphragm assembly 311 being suspended in the magnetic gap 323.

In the present embodiment, as shown in fig. 2 to 5, the peripheral edge of the diaphragm assembly 311 of the vibration system 31 is connected to the second housing 12 to achieve a fixed mounting of the vibration system 31. One end of the voice coil 312 is connected with the diaphragm assembly 311, and the other end of the voice coil 312 is suspended in a magnetic gap 323 of the magnetic circuit system 32, so that after current is introduced into the voice coil 312, the voice coil 312 converts electric energy into mechanical vibration in a magnetic field formed by a central magnetic circuit portion 321 and a side magnetic circuit portion 322 of the magnetic circuit system 32, so that the voice coil 312 drives the diaphragm assembly 311 to vibrate and sound, and the mechanical energy is converted into a sound signal.

It can be understood that the voice coil 312 in the vibration system 31 drives the vibrating diaphragm assembly 311 to vibrate along the vertical direction, and the coil 21 of the vibration module 2 drives the counterweight base 221 to drive the magnet assembly 223 and the magnetic circuit system 32 to vibrate along the horizontal direction, so that the vibration module 2 and the speaker module 3 in the sound generating apparatus 100 can work respectively and do not interfere with each other.

Note that, the side magnetic circuit portion 322 may be an integral ring structure, and the center magnetic circuit portion 321 is an annular inner portion of the side magnetic circuit portion 322 and is spaced apart from the side magnetic circuit portion 322 to form a magnetic gap 323. Of course, in other embodiments, the side magnetic circuit portion 322 may be a plurality of split structural components spaced around the central magnetic circuit portion 321, which is not limited herein.

In the present embodiment, the side magnetic path portion 322 includes two, two side magnetic path portions 322 are provided on both sides of the long axis side of the center magnetic path portion 321, and the extending direction of the magnetic gap 323 formed by the two side magnetic path portions 322 and the center magnetic path portion 321 coincides with the vibration moving direction of the vibrator assembly 22. It will be appreciated that the second magnetic circuit 32 has a major axis and a minor axis, and the two side magnetic circuit portions 322 are disposed on two major axis sides of the second magnetic circuit 32 and on opposite sides of the central magnetic circuit portion 321, that is, the extending direction of the magnetic gap 323 is the same as the major axis direction of the second magnetic circuit 32, and at this time, the extending direction of the magnetic gap 323 is consistent with the vibration moving direction of the vibrator assembly 22.

In order to avoid collision between the magnetic circuit system 32 and the voice coil 312 when the coil 21 drives the weight seat 221 to drive the magnet assembly 223 and the magnetic circuit system 32 to vibrate in the horizontal direction, the side magnetic circuit portion 322 of the magnetic circuit system 32 is only disposed in the long axis direction, and the short axis direction is not disposed.

It will be appreciated that in order to avoid collision of the voice coil 312 with the central magnetic circuit portion 321, the annular shape of the voice coil 312 extends in the long axis direction, that is, provides a space for avoiding the central magnetic circuit portion 321 with the movement of the weight holder 221.

In one embodiment, the central magnetic circuit portion 321 includes a central magnet 3211 and a central washer 3212 disposed on the vibrator assembly 22, the central washer 3212 is disposed on a side of the central magnet 3211 facing away from the vibrator assembly 22, the side magnetic circuit portion 322 includes side magnets 3221 and Bian Huasi 3222 disposed on the vibrator assembly 22, and Bian Huasi 3222 is disposed on a side of the side magnet 3221 facing away from the vibrator assembly 22, and the magnetizing direction of the central magnetic circuit portion 321 is opposite to the magnetizing direction of the side magnetic circuit portion 322.

In this embodiment, as shown in fig. 2 to 5, the center magnet 3211 of the center magnetic circuit portion 321 and the side magnet 3221 of the side magnetic circuit portion 322 are both fixed on the weight seat 221 of the vibrator assembly 22, and form a magnetic gap 323 at intervals, and the center washer 3212 and the center washer Bian Huasi 3222 are respectively stacked on the center magnet 3211 and the side magnet 3221 and are disposed opposite to each other, so that the voice coil 312 generates a high driving force in the magnetic gap 323 to drive the diaphragm assembly 311 of the vibration system 31 to move.

In the present embodiment, the ratio of the sum of the height of the side magnetic circuit portion 322 of the magnetic circuit system 32 and the height H1 of the magnet assembly 223 to the thickness d of the magnetic conductive plate 224 is less than 2. Alternatively, the ratio of the sum of the height of the side magnet 3221 of the side magnetic circuit portion 322 and the height H1 of the magnet assembly 223 to the thickness d of the magnetically conductive plate 224 is less than 2.

It can be understood that the short axis area of the voice coil 312 is far from the magnetic field due to avoiding the vibration of the central magnetic circuit portion 321 coupled to the weight holder 221 in the long axis direction, and the short axis area of the voice coil 312 far from the magnetic field is less than 15%, so that the Bl loss is controlled within 15%. Note that, washer may be added to the bottom of the center magnet 3211 and the side magnets 3221 to raise BL. The long axis of the voice coil 312 is close to the center magnet 3211 as much as possible, and the utilization rate of the magnetic circuit is improved.

In an embodiment, the second housing 12 includes a main body 121 and two metal plates 128, where the main body 121 is formed with a second mounting cavity 122, two notches are formed in the main body 121 corresponding to two side magnetic circuit portions 322, and each metal plate 128 is disposed at a notch and corresponds to and is spaced from the side magnetic circuit portion 322; wherein the body portion 121 and the two metal plates 128 are butt-connected with the first housing 11.

In this embodiment, as shown in fig. 1, 2, 4, 6 and 7, by providing a notch at a position corresponding to the side magnetic circuit portion 322 of the main body 121, and thus providing a metal plate 128 at the notch, the thickness of the side wall of the main body 121 can be effectively reduced by using the metal plate 128, so as to increase the volume of the second mounting cavity 122, and provide a larger utilization space for the magnetic circuit system 32.

Optionally, the metal plate 128 is a metal sheet. The body portion 121 and the two metal plates 128 of the second housing 12 are integrally injection molded. In the present embodiment, the main body 121 of the second housing 12 is a plastic part, the metal plate 128 is a metal part, and the main body 121 and the side of the metal plate 128 connected to the side plate 113 of the first housing 11 are disposed in a flush manner, so that the main body 121 and the two metal plates 128 are in butt connection with the first housing 11.

In an embodiment, the vibration system 31 further includes a centering support 313, one end of the centering support 313 is connected to an end of the voice coil 312 away from the diaphragm assembly 311, and the other end of the centering support 313 is connected to the main body 121.

In this embodiment, as shown in fig. 2, 3 and 7, by providing the centering support 313, on one hand, polarization and swing of the voice coil 312 are effectively avoided by using the centering support 313, and on the other hand, conduction between the voice coil 312 and an external circuit is achieved by using the centering support 313.

It will be appreciated that the centering support 313 may be of one unitary construction or may be of two or four split constructions. In the present embodiment, the centering support 313 includes two centering support 313 disposed in the short axis direction and connected to the short axis of the voice coil 312, respectively.

In an embodiment, the housing 1 further includes a middle frame 14 disposed on the outer periphery of the diaphragm assembly 311, the middle frame 14 is connected to one side of the main body 121 away from the first housing 11, the diaphragm assembly 311 includes a diaphragm 3114 and a reinforcing member 3119, the diaphragm 3114 includes a central portion 3115, a ring portion 3116 disposed around the central portion 3115, and a fixing portion 3117 connected to an outer side of the ring portion 3116, the periphery of the fixing portion 3117 is connected to an inner wall of the middle frame 14, and the reinforcing member 3119 is disposed on the central portion 3115; wherein the voice coil 312 is connected to the central portion 3115 or the reinforcement 3119.

In the present embodiment, as shown in fig. 1 to 4 and 8, by providing the intermediate frame 14 on the outer periphery of the diaphragm assembly 311, the intermediate frame 14 is used to mount and fix the diaphragm assembly 311 on the one hand, and on the other hand, the intermediate frame 14 is easily connected to the main body 121 of the second casing 12 of the housing 1 in a sealing manner. Alternatively, the diaphragm 3114 is integrally injection molded with the middle frame 14, so that the connection strength and sealing performance between the diaphragm assembly 311 and the middle frame 14 can be improved.

It can be appreciated that the structural strength of the central portion 3115 of the diaphragm 3114 is reinforced by the reinforcement 3119 by providing the reinforcement 3119 at the central portion 3115 of the diaphragm 3114. Alternatively, the diaphragm 3114 is injection molded integrally with the stiffener 3119. In the present embodiment, the central portion 3115 of the diaphragm 3114 may have a hollow structure or a flat structure, which is not limited herein.

Alternatively, the stiffener 3119 is integrally thermoformed with the central portion 3115. This improves the reliability and durability of the diaphragm 3114.

In this embodiment, the ring portion 3116 of the diaphragm 3114 may be a U-shaped structure, and the ring portion 3116 of the diaphragm 3114 has elastic resilience. On the basis of providing larger compliance, the device occupies a very small vibration radiation surface, and effectively increases the vibration sounding area. It can be appreciated that the fixing portion 3117 of the diaphragm 3114 is vertically disposed upward along the outer side of the ring portion 3116, so that the contact area between the fixing portion 3117 and the inner wall of the middle frame 14 can be increased, the connection stability can be improved, and the effective sound-producing area can be increased.

Alternatively, the reinforcement 3119 may be provided on the upper surface or the lower surface of the central portion 3115. In this embodiment, a reinforcing member 3119 is attached to the lower surface of the central portion 3115, and a voice coil 312 is attached to the reinforcing member 3119.

In one embodiment, as shown in fig. 3 and 8, one of the fixing portion 3117 and the inner wall of the middle frame 14 is provided with a limiting boss 3118, and the other one is provided with a limiting groove 141, and the limiting boss 3118 is limited in the limiting groove 141.

In this embodiment, by providing the limiting boss 3118 and the limiting groove 141 on the fixing portion 3117 and the middle frame 14, respectively, the limiting boss 3118 is utilized to limit in the limiting groove 141, so as to improve the connection stability and sealing effect of the fixing portion 3117 and the middle frame 14. It can be appreciated that the fixing portion 3117 is provided with a limiting boss 3118, and the inner wall of the middle frame 14 is provided with a limiting groove 141; alternatively, the fixing portion 3117 is provided with a limit groove 141, and the inner wall of the middle frame 14 is provided with a limit boss 3118; alternatively, the fixing portion 3117 is provided with a limiting groove 141 and a limiting boss 3118, and the inner wall of the middle frame 14 is provided with the limiting boss 3118 and the limiting groove 141, which are not limited herein.

In order to achieve the installation and positioning of the diaphragm assembly 311, in one embodiment, one of the middle frame 14 and the main body 121 is provided with a limiting groove 127, and the other one is provided with a limiting post 142, and the limiting post 142 is limited in the limiting groove 127.

It can be understood that, as shown in fig. 1, 2 and 6, the main body 121 of the second casing 12 of the middle frame 14 and the outer casing 1 is provided with the limiting post 142 and the limiting groove 127, so that the middle frame 14 is mounted on the second casing 12 of the outer casing 1 by limiting the limiting post 142 in the limiting groove 127.

In an embodiment, as shown in fig. 1 to 4, the housing 1 further includes a front cover 13, where the front cover 13 covers a side of the diaphragm 3114 facing away from the voice coil 312, and is connected to the middle frame 14. It will be appreciated that the diaphragm 3114 of the diaphragm assembly 311 is protected by the front cover 13 by providing the front cover 13.

In an embodiment, the inner wall of the main body 121 is convexly provided with a limiting baffle 124, the limiting baffle 124 is opposite to the edge position of the reinforcing member 3119, that is, the projection of the limiting baffle 124 and the projection of the reinforcing member 3119 along the vertical direction are overlapped, the limiting baffle 124 is located between the hinge portion 3116 and the centering support 313, the limiting baffle 124 surrounds the through opening 125, and the voice coil 312 is suspended in the magnetic gap 323 through the through opening 125.

In this embodiment, as shown in fig. 2 to 4, fig. 6 and fig. 7, when the sound generating apparatus 100 is applied to a wearing device and a user is running or swimming, the limiting stop 124 can be set when the diaphragm 3114 of the diaphragm assembly 311 is affected by water pressure, and when the amplitude of the diaphragm 3114 is large, the limiting stop 124 can be used to limit the movement of the central portion 3115 of the diaphragm 3114, so as to effectively avoid the problem of tearing the ring-folded portion 3116 of the diaphragm 3114. Meanwhile, the limiting stopper 124 also has a good waterproof effect, so that the waterproof level of the sound generating apparatus 100 is more than 5 ATM.

Of course, the setting of the limiting stop 124 is also beneficial to the rotation of the limiting weight seat 221 in the horizontal plane vibration process, so as to avoid the collision between the magnetic circuit system 32 and the voice coil 312.

In an embodiment, a conductive metal sheet 126 is further disposed in the main body 121, one end of the conductive metal sheet 126 is provided with an inner bonding pad 1261, the inner bonding pad 1261 is exposed on one side of the limiting stop 124 facing away from the folded ring portion 3116 and is welded to the centering support 313, the other end of the conductive metal sheet 126 is provided with an outer bonding pad 1262, and the outer bonding pad 1262 is exposed on the outer wall of the main body 121 for connection with an external circuit.

In this embodiment, as shown in fig. 1, 2, 3, 6 and 7, the conductive metal sheet 126 is disposed inside the second shell 12 of the housing 1, one end of the conductive metal sheet 126 is provided with an inner bonding pad 1261, the other end of the conductive metal sheet 126 is provided with an outer bonding pad 1262, the inner bonding pad 1261 is disposed on one side of the limiting stop 124 facing away from the collar 3116, and can be conveniently welded to the centering support 313, and the outer bonding pad 1262 is disposed on the outer wall of the housing 1 and is used for being connected to an external circuit, so that the external circuit is conveniently guided to the voice coil 312 through the conductive metal sheet 126 and the centering support 313. Alternatively, the conductive metal sheet 126 and the main body portion 121 of the second housing 12 of the casing 1 are integrally injection-molded.

The invention also provides electronic equipment, which comprises an equipment shell and the sounding device 100, wherein the sounding device 100 is arranged on the equipment shell. The specific structure of the sound generating device 100 refers to the foregoing embodiments, and because the electronic device adopts all the technical solutions of all the foregoing embodiments, the sound generating device at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, which are not described in detail herein.

It is understood that the electronic device may be a mobile phone, a wearable device, etc., and is not limited herein. The device housing may be a housing of an electronic device, a housing of a wearable device, or the like, and is not limited herein.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. A sound emitting device, the sound emitting device comprising:

The vibration module comprises a coil and a vibrator assembly, wherein the coil and the vibrator assembly are arranged in the first mounting cavity, the vibrator assembly is suspended in the first mounting cavity and is opposite to the coil, the vibrator assembly comprises a balance weight seat, an elastic piece and a magnet assembly, the balance weight seat is provided with a hollow cavity corresponding to the coil, one end of the elastic piece is connected with the balance weight seat, the other end of the elastic piece is connected with the first shell, so that the balance weight seat is suspended in the first mounting cavity, the magnet assembly is arranged in the hollow cavity and is matched with the balance weight seat to form a containing groove, and at least part of the coil is contained in the containing groove; and

The loudspeaker module comprises a vibrating system and a magnetic circuit system which are arranged in the second mounting cavity, the magnetic circuit system is connected to one side, opposite to the coil, of the counterweight seat, the vibrating system comprises a vibrating diaphragm assembly and a voice coil connected to the vibrating diaphragm assembly, the vibrating diaphragm assembly is connected with one end, far away from the first shell, of the second shell, and the first shell and the second shell are arranged along the vibrating direction of the vibrating diaphragm assembly;

The coil drives the vibrator assembly to drive the magnetic circuit system to vibrate synchronously; the voice coil in the vibration system drives the vibrating diaphragm assembly to vibrate along the vertical direction, the coil of the vibration module drives the counterweight seat to drive the magnet assembly and the magnetic circuit system to vibrate and move along the horizontal direction, so that the vibration module and the loudspeaker module in the sound production device can work respectively and do not interfere with each other.

2. The sound generating apparatus according to claim 1, wherein the first housing includes a bottom plate and a side plate provided at a periphery of the bottom plate, the side plate and the bottom plate enclosing to form the first mounting chamber;

3. The sound generating apparatus according to claim 2, wherein a fixing groove is provided on a side of the weight seat facing away from the coil, the hollow cavity penetrates through a bottom wall of the fixing groove, the vibrator assembly further comprises a magnetic conduction plate provided in the fixing groove, and the magnet assembly and the magnetic circuit system are respectively fixed on surfaces of two opposite sides of the magnetic conduction plate.

4. The sound generating apparatus according to claim 3, wherein a side of the magnetic conductive plate facing the magnetic circuit is disposed flush with a side of the weight seat facing the magnetic circuit.

5. The sound generating apparatus according to claim 1, wherein the elastic member comprises two elastic sheets, and the two elastic sheets are symmetrically arranged at two opposite sides of the counterweight base.

6. The sound generating apparatus according to claim 5, wherein the spring plate has a V-shape, a U-shape, a W-shape or a Y-shape;

7. The sound generating apparatus according to claim 2, wherein an end of the second housing facing the first housing is provided with an assembly groove, and an end of the side plate remote from the bottom plate is inserted into the assembly groove.

8. The sound generating apparatus of claim 1, wherein the first housing and the second housing are in plug-in fit to define a glue reservoir, the glue reservoir being filled with a sealant;

or, the second shell and the second shell are welded and connected.

9. The sound emitting apparatus of any one of claims 1-8 wherein,

10. The sound generating apparatus according to claim 9, wherein said side magnetic circuit portion includes two, two of said side magnetic circuit portions are provided on both sides of a long axis side of said center magnetic circuit portion, and an extension direction of said magnetic gap formed by said two side magnetic circuit portions and said center magnetic circuit portion coincides with a vibration moving direction of said vibrator assembly;

11. The sound emitting apparatus of claim 9, wherein the second housing comprises:

12. The sound emitting apparatus of claim 11, wherein the vibration system further comprises a centering support, one end of the centering support is connected to an end of the voice coil remote from the diaphragm assembly, and the other end of the centering support is connected to the main body.

13. The sound generating apparatus of claim 12, wherein the housing further comprises a center frame disposed on an outer periphery of the diaphragm assembly, the center frame being connected to a side of the main body portion remote from the first housing, the diaphragm assembly comprising:

A reinforcing member provided in the central portion;

14. The sound generating apparatus according to claim 13, wherein a limiting stop is provided on an inner wall of the main body, the limiting stop is opposite to an edge of the reinforcing member and located between the ring folding portion and the centering support, the limiting stop surrounds a through opening, and the voice coil is suspended in the magnetic gap through the through opening.

15. The sound generating apparatus according to claim 14, wherein a conductive metal sheet is further disposed in the main body, an inner bonding pad is disposed at one end of the conductive metal sheet, the inner bonding pad is exposed at a side of the limiting stop facing away from the ring folding portion and is welded to the centering support, an outer bonding pad is disposed at the other end of the conductive metal sheet, and the outer bonding pad is exposed at an outer wall of the main body and is used for being connected to an external circuit.

16. The sound emitting apparatus of claim 13 wherein the diaphragm is integrally injection molded with the reinforcement;

and/or one of the fixing part and the inner wall of the middle frame is provided with a limiting boss, the other one of the fixing part and the inner wall of the middle frame is provided with a limiting groove, and the limiting boss is limited in the limiting groove.

17. An electronic device comprising a device housing and a sound emitting apparatus according to any one of claims 1 to 16, wherein the sound emitting apparatus is provided in the device housing.