CN114567842B

CN114567842B - Sound production device and terminal equipment

Info

Publication number: CN114567842B
Application number: CN202210190536.9A
Authority: CN
Inventors: 谭飞; 李�杰; 赵国栋; 陈国强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2024-07-02
Anticipated expiration: 2042-02-28
Also published as: CN114567842A

Abstract

The invention discloses a sound generating device and terminal equipment, wherein the sound generating device comprises a shell, a sound generating monomer, a separator and a vibration assembly, the shell is provided with a containing cavity, a sound outlet and a mounting opening, the sound outlet and the mounting opening are communicated with the containing cavity, the sound generating monomer is arranged in the containing cavity and surrounds the shell to form a rear sound cavity communicated with the mounting opening, a vibrating diaphragm of the sound generating monomer is arranged opposite to the sound outlet, the sound generating monomer is provided with a mounting groove opposite to the mounting opening, the separator is arranged in the rear sound cavity to separate part of the rear sound cavity into a filling cavity, the filling cavity is used for filling sound absorbing particles, the separator is provided with a through hole corresponding to the mounting opening, and the vibration assembly sequentially penetrates through the mounting opening and the through hole and is fixed in the mounting groove. The invention aims to provide a sound generating device which integrates an SPK monomer and a motor into a whole, and has good acoustic performance.

Description

Sound production device and terminal equipment

Technical Field

The invention relates to the technical field of electroacoustic conversion, in particular to a sound generating device and terminal equipment using the sound generating device.

Background

The intelligent terminal equipment, especially mobile phone products, generally need to have the functions of audio experience and vibration touch experience, the audio experience comes from a loudspeaker device, the touch vibration experience comes from a motor device, the loudspeaker device and the motor device are generally and separately arranged in the process of improving user audio and vibration touch experience in the related technology, so that the intelligent terminal equipment occupies large space, the layout effect is not ideal and the like, and the user experience of the intelligent terminal is influenced

Disclosure of Invention

The invention mainly aims to provide a sound generating device and terminal equipment, and aims to provide a sound generating device which integrates an SPK monomer and a motor, and improves the acoustic performance of the sound generating device.

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

the shell is provided with a containing cavity, and a sound outlet and a mounting port which are communicated with the containing cavity;

The sound production unit is arranged in the containing cavity and is enclosed with the shell to form a rear sound cavity communicated with the mounting opening, the vibrating diaphragm of the sound production unit is arranged opposite to the sound outlet, and the sound production unit is provided with a mounting groove opposite to the mounting opening;

The isolating piece is arranged in the rear acoustic cavity to divide part of the rear acoustic cavity into filling cavities, the filling cavities are used for filling sound-absorbing particles, and through holes are formed in the isolating piece corresponding to the mounting openings; and

And the vibration assembly sequentially penetrates through the mounting opening and the through hole and is fixed in the mounting groove.

In one embodiment, the housing comprises:

The sound generating device comprises a first shell, a second shell and a sound generating unit, wherein an opening is formed in one end of the first shell, the sound generating hole is formed in the other end of the first shell, and the sound generating unit is arranged in the first shell; and

The second shell covers the opening and encloses with the first shell to form the containing cavity, and the second shell is spaced with the sounding monomer, so that the sounding monomer, the first shell, the second shell and the vibration assembly enclose to form the rear sound cavity, and the second shell is provided with the mounting opening.

In an embodiment, a limiting groove is further formed in one side, facing away from the sounding monomer, of the second shell, the limiting groove is arranged around the mounting opening, the vibration assembly is provided with a limiting table, and the limiting table is supported and limited in the limiting groove;

And/or, the vibration assembly comprises a motor and a circuit board connected with the motor, one end of the motor penetrates through the mounting opening and is limited in the mounting groove, one side, facing away from the sounding unit, of the second shell is also provided with a positioning groove, and the circuit board is accommodated in and limited in the positioning groove.

In an embodiment, one end of the first housing far away from the opening is bent and extended to form a supporting baffle edge, the supporting baffle edge is enclosed to form the sound outlet hole, and the periphery of the vibrating diaphragm is supported on the supporting baffle edge and is opposite to the sound outlet hole;

and/or, the second shell is further provided with a filling hole communicated with the filling cavity, and the sound generating device further comprises a damping piece, and the damping piece seals the filling hole.

In an embodiment, the sounding unit comprises a basin frame, a magnetic circuit system and a vibration system, wherein the vibration system is connected to the basin frame and corresponds to the sounding hole, the magnetic circuit system is arranged on the basin frame and is opposite to the vibration system, the magnetic circuit system is provided with the mounting groove, the isolating piece is connected with one side of the magnetic circuit system, which is opposite to the vibration system, and the through hole is correspondingly communicated with the mounting groove.

In an embodiment, the spacer comprises a metal ring and a mesh fabric arranged on the metal ring, the metal ring is abutted to one side of the sounding unit, which is opposite to the sounding hole, the mesh fabric is arranged on one side of the metal ring, which is opposite to the sounding unit, and the through hole penetrates through the metal ring.

In an embodiment, the metal ring is further provided with a vent hole, and the mesh cloth covers the vent hole.

In an embodiment, the ventilation holes comprise a plurality of ventilation holes, the ventilation holes are arranged at intervals along the circumferential direction of the metal ring, and the mesh covers the ventilation holes.

In an embodiment, the sound generating device further includes a flexible circuit board, and one end of the flexible circuit board extends into the accommodating cavity and is electrically connected with the sound generating unit;

and/or, the sound generating device further comprises a welding elastic sheet, and the welding elastic sheet is arranged on the outer wall of the shell;

And/or the thickness of the shell is 0.2 mm-0.3 mm.

In an embodiment, the sound generating device further comprises a front shell, the front shell is connected with one side of the outer shell, which is opposite to the mounting opening, and is opposite to the sound outlet hole, the front shell and one end of the outer shell, which is provided with the sound outlet hole, enclose to form a sound outlet channel which is communicated with the sound outlet hole, the front shell is further provided with a side sound outlet which is communicated with the sound outlet channel, and the side sound outlet is positioned on the periphery of the outer shell.

In an embodiment, the front shell comprises a chassis and a sound outlet piece connected to the chassis, the sound outlet piece is provided with a side sound outlet, a supporting table is arranged on one side of the chassis facing the shell, the supporting table extends along the periphery of the chassis and forms a concave groove communicated with the side sound outlet by surrounding the sound outlet piece, and the shell is supported on the supporting table and connected with the sound outlet piece.

In an embodiment, the chassis includes with support ring and the inserts that sound piece is connected, the inner wall of support ring is equipped with the caulking groove, the periphery of inserts is inlayed and is located in the caulking groove, just the support ring protrusion the inserts face one side of shell, so as to form the brace table, the brace table the inserts with sound piece encloses and forms the recess groove, the inserts is the sheetmetal.

In one embodiment, the front shell is a metal piece;

Or the supporting ring and the sound emitting piece are plastic pieces, and the supporting ring, the sound emitting piece and the insert are integrally injection molded.

The invention also proposes a terminal device comprising:

the device comprises a device shell, wherein a first sound outlet is formed in the top of the device shell, and a second sound outlet is formed in the bottom of the device shell;

The first sound generating device is the sound generating device, the first sound generating device is arranged in the equipment shell, and the sound outlet is opposite to the first sound outlet; and

The second sound generating device is the sound generating device, the second sound generating device is arranged in the equipment shell, and the side sound outlet is opposite to the second sound outlet.

According to the sound generating device, the mounting port communicated with the rear sound cavity is formed in the shell, the through holes and the mounting grooves are formed in the isolating piece and the sound generating single body corresponding to the mounting ports respectively, so that the vibration assembly can conveniently pass through the mounting port and the through holes in sequence and is limited in the mounting grooves, the SPK single body and the motor are integrated into a whole, the sound generating device has the functions of audio experience and vibration touch experience at the same time, the integration level of products is improved, and the occupied space of the sound generating device is saved; and the rear sound cavity is separated into a filling cavity through the isolating piece, and the filling cavity is used for filling sound-absorbing particles, so that the virtual sound cavity is effectively enlarged, and the acoustic performance of the sound-producing device 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 of a sound generating apparatus according to another embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a sound generating apparatus according to another embodiment of the present invention;

FIG. 6 is a schematic structural view of a first 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 view of a separator according to an embodiment of the present invention;

FIG. 9 is a schematic view of a front shell according to an embodiment of the present invention;

FIG. 10 is a schematic view of a front shell from another perspective according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present 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.

The intelligent terminal equipment, especially mobile phone products, generally need to have the audio frequency experience and the vibration touch experience function, the audio frequency experience comes from the loudspeaker device, the touch vibration experience comes from the motor device, the loudspeaker device and the motor device are respectively and independently arranged in the process of improving user audio frequency and vibration touch experience in the related technology, so that the problems of large occupied space, unsatisfactory layout effect and the like in the intelligent terminal equipment are caused, and the user experience of the intelligent terminal is influenced. Meanwhile, the interconversion of the front sound emitting structure and the side sound emitting structure of the speaker device cannot be realized, resulting in limited use of the speaker device.

Based on the above-mentioned problems, the present invention proposes a sound generating apparatus 100. It is understood that the sound generating apparatus 100 may be applied to an electronic device, such as a portable mobile electronic product or a terminal device, including a mobile phone, an IPAD, etc., and is not limited herein.

Referring to fig. 1 to 3 and fig. 6 to 8, in the embodiment of the invention, the sound generating device 100 includes a housing 1, a sound generating unit 2, a spacer 3 and a vibration assembly 4, wherein the housing 1 is provided with a cavity 11, a sound outlet 121 and a mounting hole 131 which are communicated with the cavity 11, the sound generating unit 2 is disposed in the cavity 11 and encloses with the housing 1 to form a rear sound cavity which is communicated with the mounting hole 131, a vibrating diaphragm 231 of the sound generating unit 2 is disposed opposite to the sound outlet 121, the sound generating unit 2 is provided with a mounting groove 221 opposite to the mounting hole 131, the spacer 3 is disposed in the rear sound cavity to divide a part of the rear sound cavity into a filling cavity 35, the filling cavity 35 is used for filling sound absorbing particles, the spacer 3 is provided with a through hole 31 corresponding to the mounting hole 131, and the vibration assembly 4 sequentially passes through the mounting hole 131 and the through hole 31 and is fixed in the mounting groove 221.

In this embodiment, the housing 1 of the sound generating device 100 is used for mounting, fixing and supporting the sound generating unit 2, the spacer 3, the vibration assembly 4, and other components, that is, the housing 1 provides a mounting base for the sound generating unit 2, the spacer 3, the vibration assembly 4, and other components. In order to facilitate the installation and protect the sounding unit 2, the isolating piece 3, the vibration assembly 4 and other components, the housing 1 is provided with a cavity 11. Alternatively, the structure of the housing 1 may be a mounting case, a box, or a case having the accommodating chamber 11.

It can be appreciated that, in order to facilitate the sound generated by the sounding unit 2 to be smoothly transmitted from the accommodating chamber 11, the housing 1 is provided with a sound outlet 121 communicating with the accommodating chamber 11. In the present embodiment, the diaphragm 231 of the sounding unit 2 of the sounding device 100 is disposed opposite to the sound outlet 121, so that the sounding device 100 forms a positive sounding structure. Of course, in other embodiments, the sound emitting hole 121 of the sound emitting device 100 is located at the peripheral side of the sound emitting unit 2, and when the sound emitting hole is not disposed opposite to the diaphragm 231, the sound emitting device 100 forms a side sound emitting structure, which is not limited herein.

Alternatively, the diaphragm 231 of the sounding unit 2 is disposed opposite to the sound outlet 121, so that the sounding device 100 forms a positive sounding structure.

It will be appreciated that the housing 1 may be of unitary construction or may be of split construction. As shown in fig. 1 to 7, the housing 1 includes a first shell 12 and a second shell 13, that is, the housing 1 is provided in a split manner, and the two parts of the first shell 12 and the second shell 13 are connected to form an integral structure. Of course, in other embodiments, the housing 1 may be formed by integral molding, which is not limited herein.

Optionally, the first casing 12 and the second casing 13 of the housing 1 are metal parts, and the first casing 12 and the second casing 13 are hermetically matched to define the accommodating cavity 11, that is, the first casing 12 and the second casing 13 are made of metal materials, so that the overall structure of the housing 1 is made of metal materials.

It can be appreciated that the first shell 12 and the second shell 13 of the casing 1 may be made of thinner steel sheets, so that the casing 1 may be designed to be thinner, thereby greatly increasing the volume of the cavity in the casing 1, effectively increasing the volumes of the front acoustic cavity and the rear acoustic cavity enclosed by the sounding unit 2 and the casing 1, and further improving the acoustic performance, particularly the low-frequency acoustic performance, of the sounding device 100. Meanwhile, the sounding monomer 2 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 sounding device 100 is improved.

In this embodiment, through setting up the installing port 131 on shell 1 to correspond the installing port 131 on sound production monomer 2 and set up mounting groove 221, thereby utilize installing port 131 and mounting groove 221 installation spacing vibration subassembly 4, so can be with vibration subassembly 4 integration on sound production device 100, make sound production device 100 take into account the audio frequency effect in, can realize the function of experiencing in shake touch sense.

Optionally, the sound outlet 121 and the mounting opening 131 are disposed on two opposite sides of the housing 1, so that the mounting of the vibration assembly 4 can be ensured, and the sound producing effect of the sound producing device 100 can be prevented from being affected by the vibration assembly 4.

In this embodiment, the sounding monomer 2 is disposed in the accommodating cavity 11 and enclosed with the housing 1 to form a rear sound cavity communicating with the mounting port 131, and the spacer 3 is disposed in the rear sound cavity, so that the spacer 3 separates the rear sound cavity from the filling cavity 35, and the filling cavity 35 is used for filling sound-absorbing particles, thereby effectively increasing the virtual sound cavity and improving the acoustic performance of the sounding device 100.

It will be appreciated that the separator 3 may be an air-permeable mesh or a metal woven mesh, without limitation. By filling the sound absorbing particles in the filling cavity 35 to form a virtual sound cavity, the effect of increasing the acoustic cavity is achieved, and after the sound generated by the sound generating unit 2 enters the filling cavity 35 through the isolating piece 3, the sound absorbing particles increase the transmission path of the sound absorbing particles, so that the sound absorbing particles are used for reducing the resonance frequency of the sound generating device 100 and improving the audio performance of the sound generating device 100, and particularly, the sound absorbing particles have an improvement effect on the low-frequency acoustic performance of the sound generating device 100.

In this embodiment, the spacer 3 is provided with a through hole 31 through which the vibration assembly 4 passes, that is, the inner wall of the through hole 31 is in sealing contact with or connected with the periphery of the vibration assembly 4, so that sound absorbing particles filled in the cavity 35 can be effectively prevented from entering the sounding unit 2 through the through hole 31, and the sounding effect of the sounding unit 2 is affected.

According to the sound generating device 100, the containing cavity 11 is formed in the shell 1, so that the containing cavity 11 is used for installing, fixing and protecting the sound generating single body 2, the sound generating single body 2 is arranged in the containing cavity 11 and is enclosed with the shell 1 to form the rear sound cavity, the isolating piece 3 is arranged in the rear sound cavity to isolate the rear sound cavity from the filling cavity 35, the filling cavity 35 is used for filling sound absorbing particles, the virtual sound cavity is effectively increased, the acoustic performance of the sound generating device 100 is improved, and the sound outlet 121 communicated with the containing cavity 11 is formed in the shell 1, so that sound generated by the sound generating single body 2 can be conveniently and smoothly transmitted out from the sound outlet 121; meanwhile, through setting up the installing port 131 of sound cavity behind the intercommunication on shell 1 to correspond installing port 131 on isolator 3 and sound production monomer 2 and set up through-hole 31 and mounting groove 221 respectively, thereby make things convenient for vibration subassembly 4 to pass installing port 131 and through-hole 31 in proper order, and spacing in mounting groove 221, thereby realize integrating SPK monomer and motor in an organic whole, so that sound production device 100 has audio frequency experience and vibration sense of touch experience function concurrently, promote the integrated level of product, save the occupation space of sound production device 100.

In an embodiment, the housing 1 includes a first shell 12 and a second shell 13, where one end of the first shell 12 is provided with an opening 122, the other end of the first shell 12 is provided with a sound outlet 121, the sounding unit 2 is disposed in the first shell 12, the second shell 13 covers the opening 122 and encloses the first shell 12 to form a cavity 11, and the second shell 13 is spaced from the sounding unit 2, so that the sounding unit 2, the first shell 12, the second shell 13 and the vibration component 4 enclose to form a rear sound cavity, and the second shell 13 is provided with a mounting opening 131.

It can be understood that, as shown in fig. 2, 3, 5 and 6, the sound outlet 121 may be disposed at the bottom of the housing 1, that is, the sound outlet 121 is disposed through the first housing 12 and is communicated with the cavity 11, and the diaphragm 231 of the sound generating unit 2 is disposed opposite to the sound outlet 121, so that the sound generating device 100 is formed into a positive sound generating structure. Of course, in other embodiments, the sound outlet 121 may be disposed on a side of the housing 1, that is, the sound outlet 121 penetrates through a side wall of the first casing 12, so that the sound generating device 100 is formed into a side sound generating structure.

In this embodiment, the first housing 12 may be a cylindrical structure with both ends open, one end of which forms the sound outlet 121, and the other end of which forms an opening for mounting the sounding monomer 2; or the first casing 12 is a U-shaped structure with one end open and one end closed, at this time, the opening of the first casing 12 is used for sounding the single body 2 and is covered by the second casing 13, the closed end of the first casing 12 is provided with the sounding hole 121, and the arrangement is such that when the sounding single body 2 is arranged in the containing cavity 11, the vibrating diaphragm of the sounding single body 2 and the sounding hole 121 are arranged right opposite to form a positive sounding structure.

Alternatively, the second housing 13 may be a plate-like structure or a U-shaped structure having one end opened and one end closed, which is not limited herein.

In this embodiment, the mounting opening 131 is formed in the housing 1, and the mounting groove 221 is formed in the sounding unit 2, so that the vibration assembly 4 can be positioned and mounted by conveniently using the cooperation of the mounting opening 131 and the mounting groove 221. It can be understood that the second shell 13 of the housing 1 is provided with a mounting opening 131, and the mounting opening 131 corresponds to and is communicated with the notch of the mounting groove 221 of the sounding unit 2.

It can be understood that, as shown in fig. 3 and 5, the second housing 13 is spaced from the sounding unit 2, so that the sounding unit 2, the first housing 12, the second housing 13 and the vibration assembly 4 enclose a rear sound cavity, and the rear sound cavity is used to fill with sound-absorbing particles, so as to increase the virtual sound cavity and improve the acoustic performance of the sounding device 100.

Alternatively, the thickness of the housing 1 is 0.2mm to 0.3mm. It can be appreciated that by controlling the thickness of the housing 1 to be 0.2mm to 0.3mm, the external dimension of the housing 1 can be maximally utilized to ensure the volume of the sound cavity required by the sound generating unit 2. Optionally, the housing 1 may be made of metal or carbon fiber.

In an embodiment, a limiting groove 136 is further formed on a side of the second housing 13 facing away from the sounding unit 2, the limiting groove 136 is disposed around the mounting opening 131, the vibration assembly 4 is provided with a limiting table 411, and the limiting table 411 is supported and limited in the limiting groove 136.

In this embodiment, as shown in fig. 1 to 5 and 7, the limiting groove 136 is provided, so that the vibration assembly 4 is prevented from influencing the vibration of the diaphragm when the vibration assembly 4 passes through the bottom wall through hole of the mounting groove 221 while the limiting groove 136 is used for mounting the limiting vibration assembly 4, that is, the vibration assembly 4 is supported in the limiting groove 136 through the limiting table 411. It can be appreciated that the limiting table 411 is in sealing connection with the limiting slot 136.

In an embodiment, the vibration assembly 4 includes a motor 41 and a circuit board 42 connected to the motor 41, one end of the motor 41 passes through the mounting opening 131 and is limited in the mounting groove 221, a positioning groove 137 is further disposed on a side of the second housing 13 facing away from the sounding unit 2, and the circuit board 42 is accommodated and limited in the positioning groove 137.

In the present embodiment, as shown in fig. 1 to 5 and 7, the motor 41 of the vibration assembly 4 can achieve a vibration touch effect, and the motor 41 is connected to an external power source through a circuit board 42 to achieve power supply to the motor 41. It will be appreciated that the positioning groove 137 is provided on the second housing 13, so that the positioning groove 137 is used to provide a mounting and positioning space for the circuit board 42.

In an embodiment, one end of the first housing 12 far away from the opening 122 is bent and extended to form a supporting edge 123, the supporting edge 123 encloses to form the sound outlet 121, and the periphery of the diaphragm 231 is supported on the supporting edge 123 and is disposed opposite to the sound outlet 121.

In the present embodiment, as shown in fig. 2, 3, 5 and 6, the sounding body 2 is supported and fixed by the support rib 123 by providing the support rib 123 at the end of the first casing 12 remote from the opening 122. It will be appreciated that the support flange 123 is integrally formed with the first housing 12. The periphery of the diaphragm 231 is supported on the supporting baffle edge 123 and is arranged opposite to the sound outlet 121.

Alternatively, the periphery of the diaphragm 231 may be fixedly set up on the supporting edge 123 by sealant or glue, so that the folded ring portion and the dome of the diaphragm 231 correspond to the sound outlet 121.

In an embodiment, a first connecting portion 124 is disposed at an end of the first housing 12 adjacent to the opening 122, a second connecting portion 132 is disposed on the second housing 13, the second connecting portion 132 is aligned with the first connecting portion 124, one of the first connecting portion 124 and the second connecting portion 132 is a positioning protrusion, and the other of the first connecting portion 124 and the second connecting portion 132 is a positioning groove;

In the present embodiment, as shown in fig. 1 to 7, the first and second housings 12 and 13 are mounted and fixed by providing the first and second connection portions 124 and 132 on the first and second housings 12 and 13, respectively, so that the second connection portion 132 is connected to the first connection portion 124 in a para-position.

It can be appreciated that one of the first connecting portion 124 and the second connecting portion 132 is a positioning protrusion, and the other of the first connecting portion 124 and the second connecting portion 132 is a positioning groove, and the positioning protrusion is welded to a groove wall of the corresponding positioning groove. That is, a positioning projection may be provided on the first housing 12, a positioning groove may be provided on the second housing 13, a positioning groove may be provided on the first housing 12, a positioning projection may be provided on the second housing 13, and a positioning projection and a positioning groove may be provided on both the first housing 12 and the second housing 13, each positioning projection extending into the corresponding positioning groove.

In this embodiment, the second connecting portion 132 is a positioning protrusion, the positioning protrusion includes a plurality of positioning grooves, the first connecting portion 124 is a plurality of positioning grooves, and the positioning grooves are welded and fixed with the groove walls of the corresponding positioning grooves at each positioning protrusion, so as to realize the installation and fixation of the first casing 12 and the second casing 13. Of course, in other embodiments, the first connecting portion 124 is a positioning protrusion, and the second connecting portion 132 is a positioning groove, which is not limited herein.

It will be appreciated that the first and second connection portions 124 and 132 are configured as positioning protrusions and positioning grooves, so that positioning engagement and clamping are achieved by using the positioning protrusions and the positioning grooves, thereby achieving positioning assembly of the first and second housings 12 and 13.

Alternatively, the first housing 12 and the second housing 13 may be welded together by means of welding fixing of the positioning projections and the groove walls of the corresponding positioning grooves. Therefore, through the arrangement, the welding process difficulty can be reduced, and the assembly efficiency is improved. It is to be understood that the welding method between the first housing 12 and the second housing 13 is not limited thereto, and the welding may be performed at other positions where the first housing 12 and the second housing 13 are in contact, which is not particularly limited in the present application.

In an embodiment, the second housing 13 includes a central portion 133 and an edge portion 134 disposed on an outer periphery of the central portion 133, the edge portion 134 is bent and extended toward a direction approaching the sounding unit 2 relative to the central portion 133, the edge portion 134 abuts against a side wall of the first housing 12 to define a glue groove 135 with the first housing 12, and the central portion 133 is provided with a mounting opening 131.

In the present embodiment, as shown in fig. 1 to 5 and 7, by providing the second housing 13 with the center portion 133 and the edge portion 134 such that the edge portion 134 is connected to the outer periphery of the center portion 133 and such that the edge portion 134 is bent and extended toward the direction approaching the sounding unit 2 with respect to the center portion 133, when the second housing 13 is connected to the first housing 12 through the edge portion 134, the edge portion 134 of the second housing 13 defines the glue groove 135 with the first housing 12. Optionally, the rim portion 134 is optionally L-shaped in configuration.

It can be appreciated that the center portion 133, the edge portion 134 and the second connecting portion 132 of the second housing 13 may be formed integrally, which not only simplifies the processing of the second housing 13, but also is beneficial to improving the structural strength of the second housing 13. In the present embodiment, the second connection portions 132 are disposed at the periphery of the edge portion 134, and the plurality of second connection portions 132 are disposed at intervals along the periphery of the edge portion 134.

In one embodiment, the glue groove 135 is filled with sealing glue, and the sealing glue is solidified to form a sealing member, and the sealing member is enclosed at the periphery of the combination position of the edge portion 134 and the side wall of the first housing 12, so as to connect the first housing 12 and the second housing 13 in a sealing manner.

It will be appreciated that by filling the glue groove 135 with the sealing glue, the sealing glue is solidified to form a seal, so that the connection stability and sealing performance between the first housing 12 and the second housing 13 can be effectively improved. The sealing element is arranged around the periphery of the combination position of the edge 134 of the second shell 13 and the side wall of the first shell 12, so that the sealing element is used for sealing and connecting the first shell 12 with the second shell 13, the sealing performance and the waterproof performance of the shell 1 are further improved, the sound generating device 100 has good sealing effect, the waterproof grade is effectively improved, and the IP68 waterproof requirement is realized.

Alternatively, the sealing member may be a sealing strip, a sealing ring or other structure capable of achieving a sealing effect, which is not limited herein.

In an embodiment, the second housing 13 is further provided with a filling hole 138 communicating with the filling cavity 35, and the sound generating device 100 further includes a damping member 51, where the damping member 51 seals the filling hole 138.

It will be appreciated that the filling of the sound absorbing particles into the filling chamber 35 is facilitated by the provision of the filling holes 138, as shown in fig. 1, 2, 4 and 7. By providing the damping member 51, the filling hole 138 is blocked by the damping member 51, and leakage of sound absorbing particles is avoided. Alternatively, the damping member 51 may be made of PET.

In an embodiment, the sounding unit 2 includes a frame 21, a magnetic circuit 22 and a vibration system 23, the vibration system 23 is connected to the frame 21 and is disposed corresponding to the sounding hole 121, the magnetic circuit 22 is disposed on the frame 21 and is opposite to the vibration system 23, the magnetic circuit 22 is provided with a mounting groove 221, the spacer 3 is connected to a side of the magnetic circuit 22 facing away from the vibration system 23, and the through hole 31 is correspondingly communicated with the mounting groove 221.

It can be appreciated that the frame 21 of the sounding unit 2 is used for installing and fixing the magnetic circuit system 22 and the vibration system 23, the magnetic circuit system 22 is provided with a magnetic gap, the vibration system 23 comprises a vibrating diaphragm 231 connected with the frame 21 and a voice coil, one end of the voice coil, far away from the vibrating diaphragm 231, is suspended in the magnetic gap, and thus current can be introduced into a magnetic field generated by the magnetic circuit system 22 in the magnetic gap through the voice coil, and the current can be converted into mechanical energy, so that the voice coil drives the vibrating diaphragm 231 to vibrate, and the mechanical energy can be converted into an acoustic signal.

In this embodiment, the vibrating diaphragm 231 of the vibrating system 23, the basin frame 21 and the magnetic circuit 22 enclose to form a vibrating space, and the magnetic circuit 22 is provided with the mounting groove 221, so that the sounding unit 2 and the vibrating assembly 4 are integrated on the housing 1. It will be appreciated that the mounting groove 221 may be a groove structure or a through groove structure. When the mounting groove 221 is in a groove structure, the mounting groove 221 is located at a side of the magnetic circuit system 22 facing away from the vibration system 23. When the mounting groove 221 is of a through groove structure, the bottom wall of the mounting groove 221 is of a through hole structure, namely, the through hole structure penetrates through the central magnetic circuit part of the magnetic circuit system 22, at the moment, the vibration assembly 4 is arranged in the mounting groove 221, and enough vibration space is reserved between the vibration assembly 4 and the vibrating diaphragm, so that the vibration of the vibrating diaphragm is prevented from being influenced.

In an embodiment, the spacer 3 includes a metal ring 32 and a mesh 33 disposed on the metal ring 32, where the metal ring 32 abuts against a side of the sounding unit 2 facing away from the sounding hole 121, the mesh 33 is disposed on a side of the metal ring 32 facing away from the sounding unit 2, and the through hole 31 penetrates the metal ring 32.

In this embodiment, as shown in fig. 3 and 5, the spacer 3 is attached to the side of the sound generating unit 2 facing the rear acoustic chamber. The volume of the filling cavity 35 can be effectively increased by arranging the sound absorbing particles in the filling cavity 35 to form a virtual sound cavity, the effect of increasing the sound cavity is achieved, and the sound generated by the sound generating unit 2 enters the filling cavity 35 through the isolating piece 3, so that the sound absorbing particles increase the transmission path of the sound absorbing particles, the resonance frequency of the sound generating device 100 is reduced, the audio performance of the sound generating device 100 is improved, and the sound generating device 100 has an improvement effect on the low-frequency acoustic performance of the sound generating device 100.

Meanwhile, the isolation piece 3 is attached to the sounding single body 2, so that the sounding single body 2 provides a certain supporting force for the isolation piece 3, deformation of a metal woven net formed by weaving metal wires in the assembly process is avoided, the problem of powder leakage is caused, and the size of the sounding device 100 in the vertical direction or the Z-axis direction is not increased.

It can be appreciated that, as shown in fig. 2,3, 5 and 8, the spacer 3 is configured as the metal ring 32 and the mesh cloth 33, so that the mesh cloth 33 is supported and installed by using the metal ring 32, thereby facilitating processing and installation on one hand and effectively avoiding powder leakage of the spacer 3 on the other hand. In this embodiment, the metal ring 32 of the spacer 3 is supported and connected to the side of the sounding unit 2 facing away from the sounding hole 121, and the mesh 33 is disposed on the side of the metal ring 32 facing away from the sounding unit 2.

In this embodiment, the metal ring 32 and the mesh cloth 33 are provided with through holes 31 corresponding to the mounting openings 131, and the walls of the through holes 31 are in sealing contact with the peripheral wall of the motor 41 of the vibration assembly 4, so that the problem of powder leakage from the through holes 31 is avoided.

In one embodiment, as shown in fig. 8, the metal ring 32 is further provided with ventilation holes 34, and the mesh cloth 33 covers the ventilation holes 34. It can be appreciated that the ventilation holes 34 are arranged, so that the ventilation holes 34 are communicated with the vibration space of the sounding monomer 2, and the air pressure in the vibration space is effectively balanced.

Optionally, the ventilation holes 34 include a plurality of ventilation holes 34 spaced along the circumference of the metal ring 32, and the mesh 33 covers the plurality of ventilation holes 34.

In an embodiment, the sound generating device 100 further includes a flexible circuit board 52, and one end of the flexible circuit board 52 extends into the cavity 11 and is electrically connected to the sound generating unit 2.

In the present embodiment, as shown in fig. 1, 2 and 4, the flexible circuit board 52 is provided, so that the sound emitting unit 2 is turned on with an external power source by using the flexible circuit board 52, so as to realize normal sound emission of the sound emitting unit 2. It will be appreciated that by providing the inner pads on the flexible circuit board 52 such that the inner pads are located within the cavity 11, the connection to the sound emitting cells 2 is conducted using the inner pads.

It will be appreciated that when the housing 1 is a metal housing, the inner peripheral wall of the first housing 12 is provided with an insulating spacer at a position corresponding to the inner pad, so that the inner pad is effectively prevented from being connected to the housing 1 through the insulating spacer to cause leakage. Alternatively, the insulating spacer may be an insulating tape, a mylar film, or the like, without limitation.

In an embodiment, as shown in fig. 1, 2 and 4, the sound generating device 100 further includes a welding spring 53, where the welding spring 53 is disposed on the outer wall of the housing 1.

It will be appreciated that by providing the welding spring 53, the sound generating apparatus 100 may be mounted and fixed on the electronic device or the terminal device by using the welding spring 53 on the one hand, and the flexible circuit board 52 and the circuit board 42 may be supported or mounted by using the welding spring 53 on the other hand. Optionally, the welding spring 53 is provided with a mounting hole for mounting fixation.

In order to improve the general effect of the sound generating device 100 and realize the mutual conversion between the positive sound generating structure and the lateral sound generating structure of the sound generating device 100, in an embodiment, the sound generating device 100 further includes a front shell 6, the front shell 6 is connected with one side of the housing 1 facing away from the mounting port 131 and is opposite to the sound generating hole 121, the front shell 6 and one end of the housing 1 where the sound generating hole 121 is arranged enclose to form a sound generating channel 61 communicating with the sound generating hole 121, the front shell 6 is further provided with a lateral sound generating port 631 communicating with the sound generating channel 61, and the lateral sound generating port 631 is located on the peripheral side of the housing 1.

In this embodiment, as shown in fig. 4, 5, 9 and 10, by providing the front shell 6, the front shell 6 is connected with a side of the housing 1 of the sound generating device 100 facing away from the mounting opening 131, that is, the front shell 6 is disposed opposite to the sound outlet 121, so that the front shell 6 and the housing 1 of the sound generating device 100 enclose to form the sound outlet channel 61 communicating with the sound outlet 121, the front shell 6 is further provided with the side sound outlet 631 communicating with the sound outlet channel 61, and the side sound outlet 631 is located at the peripheral side of the sound generating device 100, so that by adding the front shell 6 structure, the positive sound outlet structure of the sound generating device 100 is converted into the side sound outlet structure.

It will be appreciated that the front case 6 is disposed opposite to the sound outlet 121 of the housing 1, and the side sound outlet 631 of the front case 6 does not correspond to the sound outlet 121 and is located on the circumferential side of the sound generating unit 2 and the housing 1. In this embodiment, the housing 1 and the front housing 6 may be connected into an integral structure by adopting a fixing manner such as bonding or welding, so as to improve the connection stability of the front housing 6 and the housing 1 and avoid the problems of sound leakage and the like. Of course, the casing 1 and the front casing 6 may also adopt a detachable connection structure, for example, a manner of snap connection, plug connection, screw connection or pin connection, so as to facilitate the conversion between the front sound emitting structure and the side sound emitting structure of the sound emitting device 100 according to the actual application scenario, thereby improving the convenience of use, reducing the input of the production line, and improving the benefit.

According to the sound generating device 100, the mounting opening 131 is formed in the shell 1, the mounting groove 221 is formed in the sound generating single body 2, and the vibration component 4 is arranged in the mounting groove 221, so that the SPK single body and the motor are integrated into a whole, and the sound generating device 100 has the functions of audio experience and vibration touch experience; meanwhile, through setting up the sound hole 121 in the shell 1 one side of being away from the mounting hole 131 for sound production monomer 2 can pass through sound hole 121 smoothly and play sound, and set up preceding shell 6, make preceding shell 6 be connected with shell 1 one side of being away from mounting hole 131, and enclose the play sound passageway 61 that closes and form intercommunication sound hole 121 with shell 1, through setting up the side sound hole 631 that communicates play sound passageway 61 on preceding shell 6, make side sound hole 631 be located the week side of sound production device 100, thereby utilize preceding shell 6 and sound production device 100 cooperation to form side sound production structure, so can realize sound production device 100 and exchange each other between sound production device 100's convenience of use, and reduce the line input of producing, the benefit is improved.

In an embodiment, the front shell 6 includes a chassis 62 and a sound outlet 63 connected to the chassis 62, the sound outlet 63 is provided with a side sound outlet 631, a supporting table 621 is provided on a side of the chassis 62 facing the housing 1, the supporting table 621 extends along a periphery of the chassis 62 and forms a concave groove 624 communicating with the side sound outlet 631 by surrounding with the sound outlet 63, and the housing 1 is supported on the supporting table 621 and connected to the sound outlet 63.

In this embodiment, as shown in fig. 4, 5, 9 and 10, by providing the front shell 6 as the chassis 62 and the sound emitting member 63, the sound emitting member 63 is protruded on the chassis 62, so that when the front shell 6 is connected with the housing 1 of the sound emitting device 100, the housing 1 of the sound emitting device 100 is supported on the chassis 62, and the side wall of the housing 1 is in limited abutment with the sound emitting member 63.

It will be appreciated that the chassis 62 of the front case 6 is connected to an end of the first shell 12 of the housing 1 remote from the second shell 13 to enclose the sound outlet channel 61, and a side sound outlet 631 is provided in the sound outlet 63, so that sound emitted from the sound emitting unit 2 passes through the sound outlet 121, passes through the sound outlet channel 61 to the side sound outlet 631, and finally passes through the side sound outlet 631 to the outside.

In this embodiment, as shown in fig. 5, 9 and 10, a supporting table 621 is disposed on one side of the chassis 62 facing the casing 1, the supporting table 621 extends along the periphery of the chassis 62 and forms a concave groove 624 surrounding the sound output member 63 to form a communication side sound output port 631, so that the first shell 12 of the casing 1 can be supported on the supporting table 621 conveniently, that is, the side of the supporting baffle edge 123 facing away from the diaphragm 231 is connected with the supporting table 621, so that the space of the concave groove 624 is utilized to communicate with the sound output channel 61, so as to increase the front sound cavity volume of the sound generating device 100, and thus improve the acoustic performance of the sound generating device 100.

Alternatively, the front case 6 may be made of a metal material support or a plastic material, which is not limited herein. In order to improve the structural stability of the front case 6, the chassis 62 and the sounding member 63 are integrally formed. In this embodiment, the support rib 123 is glued or welded to the support table 621.

In an embodiment, the chassis 62 includes a supporting ring 622 and an insert 623 connected to the sound emitting member 63, an inner wall of the supporting ring 622 is provided with an embedded groove, a periphery of the insert 623 is embedded in the embedded groove, the supporting ring 622 protrudes out of one side of the insert 623 facing the housing 1 to form a supporting table 621, the insert 623 and the sound emitting member 63 enclose to form a concave groove 624, and the insert 623 is a metal sheet.

In this embodiment, as shown in fig. 5 and 9, by providing the chassis 62 as the support ring 622 and the insert 623, and providing the insert groove on the inner wall of the support ring 622, the periphery of the insert 623 is embedded in the insert groove, thereby effectively improving the structural strength and sealing effect of the chassis 62. It will be appreciated that the support ring 622 projects beyond the side of the insert 623 facing the casing 1 to form a support table 621, so as to facilitate the connection with the first shell 12 of the casing 1 by means of the support ring 622, while ensuring the bulk of the sound outlet channel 61.

Optionally, the insert 623 is a metal sheet, which may reduce the central thickness of the chassis 62, thereby effectively increasing the volume of the sound emitting channel 61 to improve the acoustic performance of the sound emitting device 100. The side of the insert 623 facing away from the diaphragm 231 is flush with the side of the support ring 622 facing away from the support rim 123.

In an embodiment, the front shell 6 is a metal piece, so that the front shell 6 is entirely made of a metal piece, so that the thickness of the front shell 6 is effectively reduced to effectively increase the volume of the sound emitting channel 61, so as to improve the acoustic performance of the sound emitting device 100.

In another embodiment, the support ring 622 and the sound outlet 63 are plastic pieces, and the support ring 622 and the sound outlet 63 are integrally injection molded with the insert 623. It will be appreciated that this arrangement provides both improved stability of the connection of the support ring 622 to the insert 623 and also ensures a connection seal, while at the same time providing for reduced costs.

Optionally, a notch is disposed on a side of the first housing 12 corresponding to the sound emitting member 63, and the notch penetrates the supporting edge 123 and is communicated with the sound emitting hole 121. It can be appreciated that by the arrangement, the gap can be utilized to effectively improve the smoothness of the air flow.

As shown in fig. 11, the present invention further provides a terminal device 900, where the terminal device 900 includes a device housing 700, a first sound generating device 810 and a second sound generating device 820, where a first sound outlet is provided at the top of the device housing 700, a second sound outlet is provided at the bottom of the device housing 700, the first sound generating device 810 is the above sound generating device 100, the first sound generating device 810 is provided in the device housing 700, the sound outlet 121 of the first sound generating device 810 is opposite to the first sound outlet, the second sound generating device 820 is the above sound generating device 100, the second sound generating device 820 is provided in the device housing 700 and is arranged at an interval with the first sound generating device 810, and the side sound outlet 631 of the second sound generating device 820 is opposite to the second sound outlet.

The specific structures of the first sound generating device 810 and the second sound generating device 820 refer to the structures of the sound generating device 100 in the foregoing embodiments, and since the present terminal device 900 adopts all the technical solutions in all the foregoing embodiments, at least has all the beneficial effects brought by the technical solutions in the foregoing embodiments, and will not be described in detail herein.

In the present embodiment, the structure of the first sound emitting device 810 refers to the positive sound emitting structure of the sound emitting device 100 in the foregoing embodiment, that is, the structure in which the sound emitting device 100 is not provided with the front case 6, and the structure of the second sound emitting device 820 refers to the side sound emitting structure of the sound emitting device 100 in the foregoing embodiment, that is, the structure in which the sound emitting device 100 is provided with the front case 6. It can be appreciated that the first sound outlet of the device housing 700 may be an earpiece sound outlet in a communication mode, and the second sound outlet may be an external sound outlet in an external sound outlet mode, which is not limited herein.

It is understood that the terminal device 900 may be a mobile electronic product such as a mobile phone, a sound device, or an IPAD. In this embodiment, the terminal device 900 is provided with two sound emitting devices 100, that is, a first sound emitting device 810 and a second sound emitting device 820, and the first sound emitting device 810 and the second sound emitting device 820 are disposed at intervals in the device housing.

Alternatively, the first sound generating device 810 may be a Top-type speaker, that is, the sound generating device 100 is in a positive sound structure, that is, the sound generating device 100 is not provided with the front shell 6, and the second sound generating device 820 may be a Bottom-type speaker, that is, the sound generating device 100 is in a side sound structure, that is, the sound generating device 100 is provided with the front shell 6, so that a dual-speaker and dual-motor configuration can be realized, and thus when a screen of a game or other equipment is operated by two hands transversely, audio and vibration effects are respectively output to left and right ears and left and right hands of a user from two sides, so as to realize an experience effect of 'stereo+stereoscopic vibration' of the terminal equipment.

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 assembly sequentially passes through the mounting opening and the through hole and is fixed in the mounting groove;

The isolating piece comprises a metal ring and a mesh cloth arranged on the metal ring, the metal ring is in butt joint with one side of the sounding monomer, which is opposite to the sounding hole, the mesh cloth is opposite to one side of the sounding monomer, the through hole penetrates through the metal ring, the metal ring is further provided with an air hole, and the mesh cloth covers the air hole.

2. The sound emitting apparatus of claim 1, wherein the housing comprises:

3. The sound generating device according to claim 2, wherein a limiting groove is further formed in one side, facing away from the sound generating unit, of the second shell, the limiting groove is arranged around the mounting opening, the vibration assembly is provided with a limiting table, and the limiting table is supported and limited in the limiting groove;

4. The sound generating apparatus according to claim 2, wherein an end of the first housing, which is far away from the opening, is bent and extended to form a supporting edge, the supporting edge is enclosed to form the sound outlet hole, and the periphery of the diaphragm is supported on the supporting edge;

5. The sound generating device according to claim 1, wherein the sound generating unit comprises a basin frame, a magnetic circuit system and a vibration system, the vibration system is connected to the basin frame and corresponds to the sound outlet hole, the magnetic circuit system is arranged on the basin frame and is opposite to the vibration system, the magnetic circuit system is provided with the mounting groove, the isolating piece is connected with one side, facing away from the vibration system, of the magnetic circuit system, and the through hole is correspondingly communicated with the mounting groove.

6. The sound generating apparatus of claim 1 wherein the vent comprises a plurality of vents spaced circumferentially about the metal ring, the mesh covering the plurality of vents.

7. The sound generating apparatus according to claim 1, further comprising a flexible circuit board, wherein one end of the flexible circuit board extends into the cavity and is electrically connected with the sound generating unit;

And/or the thickness of the shell is 0.2 mm-0.3 mm.

8. The sound generating apparatus according to any one of claims 1 to 7, further comprising a front case connected to a side of the housing facing away from the mounting opening and facing the sound outlet hole, wherein the front case and one end of the housing where the sound outlet hole is provided enclose a sound outlet channel communicating with the sound outlet hole, and the front case is further provided with a side sound outlet communicating with the sound outlet channel, the side sound outlet being located on a peripheral side of the housing.

9. The sound generating apparatus of claim 8, wherein the front housing comprises a chassis and a sound generating member connected to the chassis, the sound generating member is provided with the side sound generating opening, a support table is arranged on one side of the chassis facing the housing, the support table extends along the periphery of the chassis and forms a recess groove communicated with the side sound generating opening together with the sound generating member, and the housing is supported on the support table and is connected with the sound generating member.

10. The sound generating apparatus of claim 9, wherein the chassis comprises a supporting ring and an insert connected with the sound generating member, an embedded groove is formed in an inner wall of the supporting ring, a periphery of the insert is embedded in the embedded groove, the supporting ring protrudes out of one side of the insert facing the housing to form the supporting table, the insert and the sound generating member enclose to form the concave groove, and the insert is a metal sheet.

11. The sound emitting apparatus of claim 10 wherein the front housing is a metal piece;

12. A terminal device, characterized in that the terminal device comprises:

a first sound generating device according to any one of claims 1 to 7, the first sound generating device being provided in the apparatus housing, and the sound outlet being directly opposite to the first sound outlet; and

A second sound generating device, which is a sound generating device according to any one of claims 8 to 11, the second sound generating device is arranged in the equipment casing, and the side sound outlet is opposite to the second sound outlet.