CN114567842A

CN114567842A - Sound production device and terminal equipment

Info

Publication number: CN114567842A
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: 2022-05-31

Abstract

The invention discloses a sound generating device and terminal equipment, wherein the sound generating device comprises a shell, a sound generating monomer, a spacer and a vibration component, the shell is provided with a containing cavity, a sound outlet hole and an installation hole, the sound generating monomer is communicated with the containing cavity, the sound generating monomer is arranged in the containing cavity and is enclosed with the shell to form a rear sound cavity communicated with the installation hole, a vibrating diaphragm of the sound generating monomer is arranged opposite to the sound outlet hole, the sound generating monomer is provided with an installation groove opposite to the installation hole, the spacer is arranged in the rear sound cavity to divide part of the rear sound cavity into a filling cavity, the filling cavity is used for filling sound absorbing particles, the spacer is provided with a through hole corresponding to the installation hole, and the vibration component sequentially penetrates through the installation hole and the through hole and is fixed in the installation groove. The invention aims to provide a sound production device which integrates an SPK single body 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 same.

Background

The intelligent terminal device, especially a mobile phone product, generally needs to have the functions of audio experience and vibration touch experience, the audio experience is from the speaker device, the touch vibration experience is from the motor device, in the process of improving the user audio and vibration touch experience, the speaker device and the motor device are generally and independently arranged in the related art, so that the problems of large occupied space, unsatisfactory layout effect and the like in the intelligent terminal device are caused, 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, aims to provide the sound generating device which integrates an SPK single body and a motor and improves the acoustic performance of the sound generating device.

In order to achieve the above object, the present invention provides a sound generating device, including:

the shell is provided with a cavity, a sound outlet hole and a mounting hole, wherein the sound outlet hole and the mounting hole are communicated with the cavity;

the sound generating monomer is arranged in the containing cavity and is enclosed with 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, and the sound generating monomer is provided with a mounting groove opposite to the mounting opening;

the partition piece is arranged in the rear sound cavity to divide part of the rear sound cavity into filling cavities, the filling cavities are used for filling sound absorption particles, and through holes are formed in the partition 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-emitting device comprises a first shell, a sound-emitting unit and a sound-emitting unit, wherein one end of the first shell is provided with an opening, the other end of the first shell is provided with a sound-emitting hole, and the sound-emitting unit is arranged in the first shell; and

the second casing, the second casing lid closes the opening, and with the first casing encloses to close and forms the appearance chamber, just the second casing with the sound production monomer interval makes the sound production monomer the first casing the second casing reaches the vibration subassembly encloses to close and forms the back sound chamber, the second casing is equipped with the installing port.

In one embodiment, a limiting groove is further formed in one side, back to the sounding unit, of the second shell, the limiting groove is arranged around the mounting opening, the vibrating assembly is provided with a limiting table, and the limiting table is supported and limited in the limiting groove;

and/or, the vibration subassembly include the motor and with the circuit board that the motor is connected, the one end of motor is passed the installing port, and spacing in the installing groove, the second casing dorsad the free one side of sound production still is equipped with the constant head tank, the circuit board hold and spacing in the constant head tank.

In one embodiment, one end of the first housing, which is far away from the opening, is bent and extended to form a support blocking edge, the support blocking edge surrounds and forms the sound outlet, and the periphery of the diaphragm is supported on the support blocking edge and is arranged opposite to the sound outlet;

and/or, the second casing still is equipped with the intercommunication fill the filling hole in chamber, sound generating mechanism still includes the damping piece, the shutoff of damping piece the filling hole.

In an embodiment, the sounding monomer includes basin frame, magnetic circuit and vibration system, vibration system connect in the basin frame to correspond go out the sound hole setting, magnetic circuit locates the basin frame, and with vibration system sets up relatively, magnetic circuit is equipped with the mounting groove, the separator with magnetic circuit dorsad vibration system's one side is connected, just the perforating hole with the mounting groove corresponds the intercommunication.

In an embodiment, the spacer includes a metal ring and a mesh cloth disposed on the metal ring, the metal ring abuts against a side of the sound-emitting unit facing away from the sound-emitting hole, the mesh cloth is disposed on a side of the metal ring facing away from the sound-emitting unit, and the through hole penetrates through the metal ring.

In one embodiment, the metal ring is further provided with air holes, and the mesh cloth covers the air holes.

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

In one embodiment, the sound generating device further comprises 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 includes a front shell, the front shell is connected to a side of the housing, which faces away from the mounting opening, and is opposite to the sound outlet hole, the front shell and one end of the housing, which is provided with the sound outlet hole, are enclosed to form a sound outlet channel communicated with the sound outlet hole, the front shell is further provided with a side sound outlet communicated with the sound outlet channel, and the side sound outlet is located on the peripheral side of the housing.

In an embodiment, the front shell includes a chassis and a sound-emitting member connected to the chassis, the sound-emitting member is provided with the side sound-emitting port, one side of the chassis facing the casing is provided with a supporting table, the supporting table extends along a periphery of the chassis and forms a concave groove communicated with the side sound-emitting port in a surrounding manner with the sound-emitting member, and the casing is supported on the supporting table and connected to the sound-emitting member.

In an embodiment, the chassis comprises a support ring and an insert, the support ring is connected with the sound-emitting piece, an embedding groove is formed in the inner wall of the support ring, the periphery of the insert is embedded in the embedding groove, the support ring protrudes out of one side of the shell, which faces the shell, so as to form the support table, the insert and the sound-emitting piece are enclosed to form the concave groove, and the insert is a metal sheet.

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

or, the support ring with sound-emitting piece is the plastic part, the support ring with sound-emitting piece with the integrative injection moulding of inserts.

The invention also proposes a terminal device, comprising:

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

the first sound-emitting device is arranged in the equipment shell, and the sound outlet hole is opposite to the first sound outlet hole; and

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

According to the sound production device, the mounting hole communicated with the rear sound cavity is formed in the shell, the through hole and the mounting groove are formed in the partition piece and the sound production monomer respectively corresponding to the mounting hole, so that the vibration component can conveniently penetrate through the mounting hole and the through hole in sequence and is limited in the mounting groove, the SPK monomer and the motor are integrated into a whole, the sound production device has the audio experience and vibration touch experience functions, the integration level of a product is improved, and the occupied space of the sound production device is saved; and, separate the back sound chamber through the separator and pack the chamber, pack the chamber and be used for filling and inhale the sound granule to effectively increase virtual sound chamber, improve sound generating mechanism's acoustic performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a sound generating device according to an embodiment of the present invention;

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

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

FIG. 4 is a schematic structural diagram of a sound generating device according to another embodiment of the present invention;

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

FIG. 6 is a schematic structural diagram of a first housing according to an embodiment of the invention;

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

FIG. 8 is a schematic view of a spacer according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a front housing according to an embodiment of the present invention;

FIG. 10 is a schematic view of a front housing from another perspective in accordance with 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.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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

Also, the expression "and/or" and/or "as used throughout is meant to encompass three alternatives, exemplified by" A and/or B "including alternative A, alternative B, or both alternative A and alternative B.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The intelligent terminal equipment, especially mobile phone products, generally need to have audio experience and vibrations sense of touch experience function concurrently, the audio experience comes from the speaker device, the sense of touch vibrations experience comes from the motor device, in improving user's audio and vibrations sense of touch experience process, generally set up speaker device and motor device separately respectively among the correlation technique, lead to occupation space in intelligent terminal equipment big, the not ideal scheduling problem of overall arrangement effect to intelligent terminal's user experience has been influenced. Meanwhile, the interconversion between 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.

In view of the above problems, the present invention provides a sound generating device 100. It is understood that the sound generating apparatus 100 may be applied to electronic devices, such as mobile phones, portable mobile electronic products such as IPADs, or terminal devices, and is not limited herein.

Referring to fig. 1 to 3 and fig. 6 to 8, in an embodiment of the present invention, the sound generating apparatus 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 opening 131, the sound generating unit 2 is disposed in the cavity 11 and surrounds the housing 1 to form a rear sound cavity communicated with the mounting opening 131, a 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 disposed opposite to the mounting opening 131, the spacer 3 is disposed in the rear sound cavity to separate 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 opening 131, and the vibration assembly 4 sequentially passes through the mounting opening 131 and the through hole 31 and is fixed in the mounting groove 221.

In this embodiment, the housing 1 of the sound generating apparatus 100 is used to mount, fix and support the sound generating units 2, the spacers 3 and the vibration component 4, i.e. the housing 1 provides a mounting base for the sound generating units 2, the spacers 3 and the vibration component 4. In order to facilitate installation and protection of the sounding unit 2, the spacer 3, the vibration component 4 and other components, the housing 1 has a cavity 11. Alternatively, the structure of the housing 1 may be a mounting case, a box body or a box body with the receiving cavity 11.

It can be understood that, in order to make the sound generated by the sound generating unit 2 smoothly come out from the cavity 11, the housing 1 is provided with a sound outlet hole 121 communicating with the cavity 11. In the present embodiment, the diaphragm 231 of the sound generating unit 2 of the sound generating device 100 is disposed opposite to the sound outlet hole 121, so that the sound generating device 100 forms a positive sound generating structure. Of course, in other embodiments, the sound emitting hole 121 of the sound emitting device 100 is located on 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 sound generating unit 2 is disposed opposite to the sound outlet hole 121, so that the sound generating device 100 forms a positive sound generating structure.

It can be understood that the housing 1 may be an integral structure or a separate structure. As shown in fig. 1 to 7, the housing 1 includes a first housing 12 and a second housing 13, that is, the housing 1 is separated, and the first housing 12 and the second housing 13 are connected to form an integral structure. Of course, in other embodiments, the housing 1 may also be formed by an integral molding method, which is not limited herein.

Optionally, the first shell 12 and the second shell 13 of the outer shell 1 are both made of metal pieces, and the first shell 12 and the second shell 13 are hermetically matched to define the accommodating cavity 11, that is, the first shell 12 and the second shell 13 are made of metal, so that the integral structure of the outer shell 1 is made of metal.

It can be understood that the first shell 12 and the second shell 13 of the casing 1 can be made of thin steel sheets, so that the casing 1 can be designed to be thinner, the cavity volume in the casing 1 is greatly increased, the volumes of the front sound cavity and the rear sound cavity enclosed by the sounding monomer 2 and the casing 1 are effectively increased, and the acoustic performance, especially the low-frequency acoustic performance, of the sounding device 100 is further improved. Meanwhile, the sounding unit 2 is fixed in the housing 1, so that heat dissipation can be achieved through the housing 1 made of a metal material, and the heat dissipation performance of the sounding device 100 is improved.

In this embodiment, through set up installing port 131 on shell 1 to correspond installing port 131 and set up mounting groove 221 on sound production monomer 2, thereby utilize installing port 131 and mounting groove 221 to install spacing vibration subassembly 4, so can be integrated vibration subassembly 4 on sound generating mechanism 100, make sound generating mechanism 100 when taking into account audio effects, can realize vibrations sense of touch experience function.

Optionally, sound outlet hole 121 and mounting hole 131 are disposed on two sides of housing 1 deviating from each other, so as to ensure the mounting of vibration component 4, and prevent vibration component 4 from affecting the sound generating effect of sound generating apparatus 100.

In this embodiment, the sound production monomer 2 is located and is held the intracavity 11 to enclose with shell 1 and close the back sound chamber that forms intercommunication installing port 131, and set up isolator 3 in the back sound chamber, make isolator 3 separate back sound chamber and pack chamber 35, pack chamber 35 and be used for filling and inhale the sound granule, so can effectively increase virtual sound chamber, improve sound generating mechanism 100's acoustic performance.

It is understood that the spacer 3 may be an insulating air-permeable mesh or a metal woven mesh, which is not limited herein. Thereby form virtual sound cavity through filling sound absorption particle in filling chamber 35, reach the effect of increase acoustics cavity for the sound that sound production monomer 2 produced gets into after filling chamber 35 through isolator 3, thereby makes sound absorption particle increase its transmission path, is used for reducing sound generating mechanism 100's resonant frequency, improves sound generating mechanism 100's audio performance, especially has the improvement effect to sound generating mechanism 100's low frequency acoustics performance.

In this embodiment, the spacer 3 is provided with the through hole 31 for the vibration component 4 to pass through, that is, the inner wall of the through hole 31 is in sealing contact with or connected to the periphery of the vibration component 4, so that the sound-absorbing particles filled in the cavity 35 can be effectively prevented from entering the sound-generating unit 2 through the through hole 31 to affect the sound-generating effect of the sound-generating unit 2.

According to the sound generating device 100, the cavity 11 is formed in the shell 1, so that the sound generating monomer 2 is installed, fixed and protected by the cavity 11, the sound generating monomer 2 is arranged in the cavity 11 and forms a rear sound cavity by enclosing with the shell 1, the partition 3 is arranged in the rear sound cavity to divide the rear sound cavity into the filling cavity 35, the filling cavity 35 is used for filling sound absorbing particles, so that the virtual sound cavity is effectively enlarged, the acoustic performance of the sound generating device 100 is improved, and the sound outlet hole 121 communicated with the cavity 11 is formed in the shell 1, so that the sound generated by the sound generating monomer 2 can be smoothly transmitted out from the sound outlet hole 121; simultaneously, through the installing port 131 that sets up the back sound chamber of intercommunication on shell 1, and it sets up perforating hole 31 and mounting groove 221 respectively to correspond installing port 131 on barrier piece 3 and sound production monomer 2, thereby make things convenient for vibration subassembly 4 to pass installing port 131 and perforating hole 31 in proper order, and spacing in mounting groove 221, thereby realize with SPK monomer and motor integration in an organic whole, so that sound generating mechanism 100 has audio frequency simultaneously concurrently and experiences the function with vibrations sense of touch, promote the integrated level of product, save sound generating mechanism 100's occupation space.

In an embodiment, the housing 1 includes a first casing 12 and a second casing 13, wherein one end of the first casing 12 is provided with an opening 122, the other end of the first casing 12 is provided with a sound outlet hole 121, the sound generating unit 2 is disposed in the first casing 12, the second casing 13 covers the opening 122 and encloses with the first casing 12 to form a receiving cavity 11, and the second casing 13 is spaced from the sound generating unit 2 to form a rear sound cavity by enclosing the sound generating unit 2, the first casing 12, the second casing 13 and the vibration component 4, and the second casing 13 is provided with a mounting hole 131.

It can be understood that, as shown in fig. 2, fig. 3, fig. 5 and fig. 6, the sound outlet hole 121 may be disposed at the bottom of the housing 1, that is, the sound outlet hole 121 is disposed through the first casing 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 hole 121, so that the sound generating device 100 is formed into a positive sound generating structure. Of course, in other embodiments, the sound emitting hole 121 may be disposed at a side portion of the housing 1, that is, the sound emitting hole 121 penetrates through a sidewall of the first casing 12, thereby forming the sound emitting device 100 as a side sound emitting structure.

In this embodiment, the first casing 12 may be a cylindrical structure with two open ends, one end of which forms the sound hole 121, and the other end of which forms an opening for installing the sound generating unit 2; or, first casing 12 is one end opening one end confined U type structure, and the opening of first casing 12 this moment is used for sound production monomer 2 to by second casing 13 closing cap, sound hole 121 has been seted up to the blind end of first casing 12, so sets up, makes sound production monomer 2 install when holding the chamber 11, and sound production monomer 2's vibrating diaphragm is just to setting up with sound hole 121, forms and just goes out the sound structure.

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

In this embodiment, the installation opening 131 is arranged on the housing 1, and the installation groove 221 is arranged on the sound-emitting single body 2, so that the installation opening 131 and the installation groove 221 are conveniently matched, and the vibration component 4 is positioned and installed. It can be understood that the second casing 13 of the housing 1 is provided with a mounting opening 131, and the mounting opening 131 corresponds to and is communicated with the mounting groove 221 notch of the sound generating unit 2.

It can be understood that, as shown in fig. 3 and fig. 5, the second casing 13 is spaced from the sound generating unit 2, so that the sound generating unit 2, the first casing 12, the second casing 13 and the vibrating component 4 enclose to form a rear sound cavity, and thus the rear sound cavity is filled with sound absorbing particles to increase the virtual sound cavity and improve the acoustic performance of the sound generating apparatus 100.

Optionally, the thickness of the housing 1 is 0.2mm to 0.3 mm. It can be understood that, by controlling the thickness of the casing 1 to be 0.2 mm-0.3 mm, the external dimensions of the casing 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 disposed on a side of the second casing 13 facing away from the sound generating unit 2, the limiting groove 136 is disposed around the mounting opening 131, the vibration component 4 is disposed 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, by providing the limiting groove 136, while the limiting vibration component 4 is mounted by using the limiting groove 136, the vibration component 4 is prevented from penetrating through the bottom wall through hole of the mounting groove 221 to affect the vibration of the diaphragm, that is, the vibration component 4 is supported in the limiting groove 136 by the limiting table 411. As can be appreciated, the spacing platform 411 is in sealing connection with the spacing groove 136.

In an embodiment, the vibration component 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 casing 13 facing away from the sound-generating 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 component 4 can realize the vibration haptic effect, and the motor 41 is connected to an external power source through the circuit board 42 to realize power supply to the motor 41. It can be understood that, by providing the positioning groove 137 on the second housing 13, the positioning groove 137 is utilized to provide a mounting positioning space for the circuit board 42.

In an embodiment, one end of the first housing 12 away from the opening 122 is bent and extended to form a supporting edge 123, the supporting edge 123 surrounds the sound outlet 121, and the periphery of the diaphragm 231 is supported by 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, a support stop edge 123 is provided at an end of the first casing 12 away from the opening 122, so that the sound generating unit 2 is supported and fixed by the support stop edge 123. It will be appreciated that the support ledge 123 is integrally formed on the first housing 12. The periphery of the diaphragm 231 is supported by the supporting edge 123 and is disposed opposite to the sound outlet 121.

Alternatively, the periphery of the diaphragm 231 may be fixedly attached to the supporting edge 123 by a sealant or glue, so that the bending portion and the dome of the diaphragm 231 correspond to the sound outlet hole 121.

In an embodiment, one end of the first housing 12 adjacent to the opening 122 is provided with a first connecting portion 124, the second housing 13 is provided with a second connecting portion 132, the second connecting portion 132 is connected to the first connecting portion 124 in an aligned manner, 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 connection portion 124 and the second connection portion 132 are respectively disposed on the first housing 12 and the second housing 13, so that the second connection portion 132 is connected to the first connection portion 124 in an aligned manner, thereby achieving the mounting and fixing of the first housing 12 and the second housing 13.

It can be understood that one of the first connecting portion 124 and the second connecting portion 132 is a positioning protrusion, the other of the first connecting portion 124 and the second connecting portion 132 is a positioning groove, and the positioning protrusion is welded and fixed with a groove wall of the corresponding positioning groove. That is to say, a positioning protrusion may be provided on the first housing 12, a positioning groove may be provided on the second housing 13, a positioning groove may also be provided on the first housing 12, a positioning protrusion may also be provided on the second housing 13, a positioning protrusion and a positioning groove may also be provided on both the first housing 12 and the second housing 13, and each positioning protrusion extends into the positioning groove corresponding thereto.

In this embodiment, the second connecting portion 132 is a plurality of positioning protrusions, the first connecting portion 124 is a plurality of positioning grooves, and each positioning protrusion is welded and fixed to a groove wall of the corresponding positioning groove, so as to fix the first housing 12 and the second housing 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 can be understood that, by arranging the first connecting portion 124 and the second connecting portion 132 as the positioning protrusion and the positioning groove structure, the positioning protrusion and the positioning groove are used to realize the positioning fit clamping, so as to realize the positioning assembly of the first casing 12 and the second casing 13.

Alternatively, the first housing 12 and the second housing 13 may be welded together by welding the positioning protrusions and the groove walls of the corresponding positioning grooves. Therefore, through the arrangement, the difficulty of the welding process can be reduced, and the assembly efficiency is improved. Of course, it is understood that the welding manner 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, and the present application is not limited thereto.

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

In the present embodiment, as shown in fig. 1 to 5 and 7, by providing the second housing 13 with the central portion 133 and the edge portion 134, the edge portion 134 is connected to the outer periphery of the central portion 133, and the edge portion 134 is bent and extended relative to the central portion 133 toward the direction close to the sound-emitting unit 2, so that 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 applying groove 135 with the first housing 12. Optionally, the rim portion 134 may be optionally of an L-shaped configuration.

It is understood that the central portion 133, the edge portion 134 and the second connecting portion 132 of the second housing 13 may be formed as an integral structure, which can simplify the manufacturing process of the second housing 13 and also improve the structural strength of the second housing 13. In the present embodiment, the second connecting portion 132 is disposed on the periphery of the edge portion 134, and the plurality of second connecting portions 132 are disposed at intervals in the circumferential direction of the edge portion 134.

In one embodiment, the glue groove 135 is filled with a sealing glue, and the sealing glue is solidified to form a sealing member, which is disposed around the periphery of the joint position of the edge portion 134 and the sidewall of the first casing 12, so as to connect the first casing 12 and the second casing 13 in a sealing manner.

It can be understood that, by filling the glue groove 135 with a sealing glue, the sealing glue is solidified to form a sealing element, so that the connection stability and the sealing performance between the first casing 12 and the second casing 13 can be effectively improved. The sealing member is enclosed at the edge part 134 of the second casing 13 and the periphery of the side wall combination position of the first casing 12, so that the first casing 12 and the second casing 13 are connected in a sealing manner by the sealing member, the sealing performance and the waterproof performance of the casing 1 are further improved, the sound generating device 100 has a good sealing effect, the waterproof grade is effectively improved, and the waterproof requirement of IP68 is met.

Alternatively, the sealing element may be a sealing strip, a sealing ring or other structures capable of achieving a sealing function, and is not limited herein.

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

As can be appreciated, as shown in fig. 1, 2, 4 and 7, the filling of the sound-absorbing particles in the filling cavity 35 is achieved by providing the filling holes 138, so that the filling holes 138 are conveniently used. By arranging the damping piece 51, the filling hole 138 is blocked by the damping piece 51, and leakage of sound absorption 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 disposed corresponding to the sounding hole 121, the magnetic circuit 22 is disposed on the frame 21 and disposed opposite to the vibration system 23, the magnetic circuit 22 is disposed with a mounting groove 221, the spacer 3 is connected to a side of the magnetic circuit 22 opposite to the vibration system 23, and the through hole 31 is correspondingly communicated with the mounting groove 221.

It can be understood that, the basin frame 21 of sound production monomer 2 is used for installing fixed magnetic circuit 22 and vibration system 23, magnetic circuit 22 is provided with the magnetic gap, vibration system 23 includes vibrating diaphragm 231 and the voice coil loudspeaker voice coil of being connected with basin frame 21, the voice coil loudspeaker voice coil is kept away from the one end of vibrating diaphragm 231 and is hung in the magnetic gap, so accessible voice coil loudspeaker voice coil introduces the electric current in the magnetic field that magnetic circuit 22 produced in the magnetic gap, thereby realize converting the electric current into mechanical energy, make the voice coil loudspeaker voice coil drive vibrating diaphragm 231 vibration take place, in order to realize converting mechanical energy into acoustic signal.

In this embodiment, the diaphragm 231 of the vibration system 23, the frame 21 and the magnetic circuit system 22 enclose a vibration space, and the mounting groove 221 is formed in the magnetic circuit system 22, so that the sound generating unit 2 and the vibration component 4 are integrally integrated on the housing 1. It is understood that the mounting groove 221 may be a groove structure or a through groove structure. When the mounting groove 221 is a groove structure, the mounting groove 221 is located on a side of the magnetic circuit system 22 opposite to the vibration system 23. When the mounting groove 221 is a through groove structure, the bottom wall of the mounting groove 221 is a through hole structure, that is, the through hole structure penetrates through the central magnetic circuit portion of the magnetic circuit system 22, at this time, the vibration component 4 is arranged in the mounting groove 221, and a sufficient vibration space is left between the vibration component 4 and the vibrating diaphragm, so that the vibration of the vibrating diaphragm is prevented from being influenced.

In one embodiment, the spacer 3 includes a metal ring 32 and a mesh 33 disposed on the metal ring 32, the metal ring 32 is abutted against a side of the sound generating unit 2 facing away from the sound generating hole 121, the mesh 33 is disposed on a side of the metal ring 32 facing away from the sound generating unit 2, and the through hole 31 penetrates through the metal ring 32.

In the present embodiment, as shown in fig. 3 and 5, the spacer 3 is attached to a side of the sound-generating unit 2 facing the rear sound cavity. So set up the volume that can effectively increase packing chamber 35, thereby make and pack at packing the interior packing of chamber 35 and inhale the sound granule and form virtual sound chamber, reach the effect of increase acoustics cavity, make the sound that sound production monomer 2 produced fill the chamber 35 after through 3 entering of isolator, thereby make and inhale sound granule and increase its transmission path, be used for reducing sound generating apparatus 100's resonant frequency, improve sound generating apparatus 100's audio performance, especially have the improvement effect to sound generating apparatus 100's low frequency acoustics performance.

Simultaneously, set up the laminating of isolator 3 and sound production monomer 2, can be so that sound production monomer 2 provides certain holding power to isolator 3, avoid weaving by the wire and form metal mesh grid and take place to warp in the assembling process to lead to leaking the problem of powder and appear, do not increase sound generating mechanism 100 in the size of vertical direction or Z axle direction.

It can be understood that, as shown in fig. 2, fig. 3, fig. 5 and fig. 8, by arranging the spacer 3 as the metal ring 32 and the mesh 33, the mesh 33 is supported and installed by the metal ring 32, which facilitates the processing and installation on the one hand, and effectively prevents the spacer 3 from powder leakage on the other hand. In the present embodiment, the metal ring 32 of the spacer 3 is supported and connected to the sounding unit 2 to abut against the side 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 the present embodiment, the metal ring 32 and the mesh 33 are each provided with a through hole 31 corresponding to the mounting opening 131, and the hole wall of the through hole 31 is in sealing contact with the peripheral wall of the motor 41 of the vibration unit 4, thereby avoiding the problem of powder leakage from the through hole 31.

In one embodiment, as shown in fig. 8, the metal ring 32 is further provided with vent holes 34, and the mesh 33 covers the vent holes 34. As can be understood, by providing the ventilation holes 34, the ventilation holes 34 are communicated with the vibration space of the sounding unit 2, so as to effectively balance the air pressure in the vibration space.

Optionally, the vent holes 34 include a plurality of vent holes 34, the plurality of vent holes 34 are arranged at intervals along the circumferential direction of the metal ring 32, and the mesh 33 covers the plurality of vent 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 generating unit 2 is conducted with an external power source by using the flexible circuit board 52, so as to realize normal sound generation of the sound generating unit 2. It can be understood that, by providing the inner bonding pad on the flexible circuit board 52, the inner bonding pad is located in the cavity 11, so that the inner bonding pad is connected and conducted with the sound generating unit 2.

It can be understood 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 with the housing 1 by the insulating spacer to cause an electric leakage. Alternatively, the insulating spacer may be an insulating tape, a mylar film, or the like, which is not limited herein.

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

It can be understood that, by providing the soldering elastic sheet 53, on one hand, the sound generating device 100 can be mounted and fixed on the electronic device or the terminal device by using the soldering elastic sheet 53, and on the other hand, the flexible circuit board 52 and the circuit board 42 can be supported or mounted by using the soldering elastic sheet 53. Optionally, the welding spring plate 53 is provided with a mounting hole for mounting and fixing.

In order to improve the general effect of the sound generating apparatus 100 and realize the interconversion between the positive sound generating structure and the side sound generating structure of the sound generating apparatus 100, in an embodiment, the sound generating apparatus 100 further includes a front shell 6, the front shell 6 is connected with one side of the housing 1 back to the mounting port 131 and is right opposite to the sound generating port 121, and the front shell 6 and one end of the housing 1 provided with the sound generating port 121 enclose the sound generating channel 61 forming the communicating sound generating port 121, the front shell 6 is further provided with a side sound generating port 631 communicating the sound generating channel 61, and the side 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 to one side of the housing 1 of the sound generating apparatus 100, which is opposite to the mounting port 131, that is, the front shell 6 is disposed opposite to the sound outlet port 121, so that the front shell 6 and the housing 1 of the sound generating apparatus 100 enclose and form the sound outlet channel 61 communicating with the sound outlet port 121, the front shell 6 is further provided with a side sound outlet port 631 communicating with the sound outlet channel 61, and the side sound outlet port 631 is located on the peripheral side of the sound generating apparatus 100, so that by adding the structure of the front shell 6, the positive sound outlet structure of the sound generating apparatus 100 is converted into the side sound outlet structure.

It can be understood 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 periphery of the sound generating unit 2 and the housing 1. In the embodiment, the housing 1 and the front housing 6 may be connected to form an integral structure by a fixing method 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, shell 1 and preceding shell 6 also can adopt detachable connection structure, for example adopt modes such as buckle connection, grafting cooperation, screw connection or pin joint to make things convenient for sound generating mechanism 100 to change between positive sound structure and the sound structure of inclining according to practical application scene, in order to improve convenience of use, reduce simultaneously and produce the line and put into, the benefit is improved.

According to the sound generating device 100, the mounting hole 131 is formed in the shell 1, the mounting groove 221 is formed in the sound generating unit 2, and the vibration component 4 is arranged in the mounting groove 221, so that the SPK unit and the motor are integrated into a whole, and the sound generating device 100 has the audio experience function and the vibration touch experience function at the same time; meanwhile, through setting up the sound outlet hole 121 in one side of the casing 1 mounting port 131 dorsad, make the sound production monomer 2 can pass through the sound outlet hole 121 smoothly and make a sound, and set up preceding shell 6, make preceding shell 6 be connected with one side of the casing 1 mounting port 131 dorsad, and enclose with casing 1 and close the sound channel 61 that forms the intercommunication sound outlet hole 121, through set up the side sound outlet 631 that communicates sound channel 61 in the front on shell 6, make side sound outlet 631 be located the week side of sound generating mechanism 100, thereby utilize preceding shell 6 and the cooperation of sound generating mechanism 100 to form the side sound structure, so can realize that sound generating mechanism 100 is just going out sound structure and side sound structure interconversion, effectively improve the convenience in use of sound generating mechanism 100, and reduce the production line input, benefit is improved.

In one embodiment, the front housing 6 includes a chassis 62 and a sound emitting member 63 connected to the chassis 62, the sound emitting member 63 has a side sound outlet 631, a support base 621 is disposed on a side of the chassis 62 facing the housing 1, the support base 621 extends along a periphery of the chassis 62 and forms a concave groove 624 communicating with the side sound outlet 631, and the housing 1 is supported on the support base 621 and connected to the sound emitting member 63.

In the present embodiment, as shown in fig. 4, 5, 9, and 10, the front case 6 is provided with the chassis 62 and the sound emitting member 63, so that the sound emitting member 63 is protruded from the chassis 62, and thus when the front case 6 is connected to 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 limit abutment with the sound emitting member 63.

It can be understood that the chassis 62 of the front case 6 is connected with one end of the first casing 12 of the housing 1 far from the second casing 13 to form the sound outlet channel 61 in a surrounding manner, and the side sound outlet 631 is disposed on the sound outlet 63, so that the sound emitted from the sound generating unit 2 passes through the sound outlet hole 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 platform 621 is disposed on a side of the chassis 62 facing the casing 1, the supporting platform 621 extends along a periphery of the chassis 62, and forms a concave groove 624 communicating with the sound outlet 631 with the sound emitting element 63, so that the first casing 12 of the casing 1 can be conveniently supported on the supporting platform 621, that is, the side of the supporting edge 123 facing away from the diaphragm 231 is connected to the supporting platform 621, so as to communicate with the sound outlet channel 61 by using a space of the concave groove 624, so as to increase a front sound cavity volume of the sound emitting device 100, thereby improving an acoustic performance of the sound emitting 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 housing 6, the chassis 62 and the sound emitting member 63 are of an integrally formed structure. In this embodiment, the support ledge 123 is glued or welded to the support platform 621.

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

In the present embodiment, as shown in fig. 5 and 9, the chassis 62 is provided with the support ring 622 and the insert 623, and the inner wall of the support ring 622 is provided with the caulking groove, so that the periphery of the insert 623 is embedded in the caulking groove, thereby effectively improving the structural strength and the sealing effect of the chassis 62. It will be understood that the support ring 622 projects from the side of the insert 623 facing the housing 1 to form a support 621 to facilitate the connection with the first shell 12 of the housing 1 by means of the support ring 622, while ensuring the volume of the sound-emitting channel 61.

Optionally, the insert 623 is a metal sheet, so that the central thickness of the bottom plate 62 is reduced, and the volume of the sound emitting channel 61 is effectively increased, so as 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 ledge 123.

In an embodiment, the front housing 6 is a metal member, and the arrangement is such that the front housing 6 is integrally made of a metal member, so as to effectively reduce the thickness of the front housing 6 and effectively increase the volume of the sound emitting channel 61, thereby improving the acoustic performance of the sound emitting device 100.

In another embodiment, the support ring 622 and the sound emitting member 63 are plastic members, and the support ring 622 and the sound emitting member 63 are integrally injection molded with the insert 623. It will be appreciated that this arrangement not only improves the stability of the connection of the support ring 622 to the insert 623, but also ensures the sealing performance of the connection, and at the same time facilitates cost reduction.

Optionally, a notch is formed on one side of the first casing 12 corresponding to the sound emitting element 63, and the notch penetrates through the supporting edge 123 and is communicated with the sound emitting hole 121. As can be appreciated, so set up, the patency of air current can effectively be improved to usable breach.

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 emitting apparatus 810 and a second sound emitting apparatus 820, where a top of the device housing 700 is provided with a first sound emitting hole, a bottom of the device housing 700 is provided with a second sound emitting hole, the first sound emitting apparatus 810 is the sound emitting apparatus 100, the first sound emitting apparatus 810 is disposed in the device housing 700, a sound emitting hole 121 of the first sound emitting apparatus 810 is directly opposite to the first sound emitting hole, the second sound emitting apparatus 820 is the sound emitting apparatus 100, the second sound emitting apparatus 820 is disposed in the device housing 700 and is spaced apart from the first sound emitting apparatus 810, and a side sound emitting port 631 of the second sound emitting apparatus 820 is directly opposite to the second sound emitting hole.

The specific structures of the first sound generating device 810 and the second sound generating device 820 refer to the structure of the sound generating device 100 in the foregoing embodiments, and since the terminal device 900 adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and no further description is given here.

In the present embodiment, the structure of the first sound generating device 810 refers to the positive sound generating structure of the sound generating device 100 in the previous embodiment, that is, the structure of the sound generating device 100 without the front case 6, and the structure of the second sound generating device 820 refers to the side sound generating structure of the sound generating device 100 in the previous embodiment, that is, the structure of the sound generating device 100 with the front case 6. It is understood that the first sound outlet hole of the device housing 700 may be an earpiece sound outlet hole in a talk mode, and the second sound outlet hole may be a loud sound outlet hole in a loud mode, which is not limited herein.

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

Optionally, the first sound generating device 810 may be a Top type speaker, that is, the sound generating device 100 is in a positive sound generating 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 generating structure, that is, the sound generating device 100 is provided with the front shell 6, so that a dual-speaker and dual-motor configuration may be implemented, so that when a screen of a device such as a game is operated by two hands in a horizontal direction, audio and a vibration effect are output to the left and right ears and the left and right hands of a user from two sides, respectively, and an experience effect of "stereo sound + stereo vibration" of the terminal device is implemented.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

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

the isolating piece is arranged in the rear sound cavity to divide part of the rear sound cavity into filling cavities, the filling cavities are used for filling sound absorption particles, and the isolating piece is provided with through holes corresponding to the mounting openings; and

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

3. The sounding device according to claim 2, wherein a limiting groove is further formed in a side of the second casing, which faces away from the sounding unit, the limiting groove is disposed 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 device according to claim 2, wherein an end of the first casing away from the opening is bent and extended to form a supporting edge, the supporting edge encloses the sound outlet, and a periphery of the diaphragm is supported by the supporting edge;

5. The sound generating device according to claim 1, wherein the sound generating unit includes a frame, a magnetic circuit system and a vibration system, the vibration system is connected to the frame and disposed corresponding to the sound outlet, the magnetic circuit system is disposed on the frame and disposed opposite to the vibration system, the magnetic circuit system is provided with the mounting groove, the spacer is connected to a side of the magnetic circuit system facing away from the vibration system, and the through hole is correspondingly communicated with the mounting groove.

6. The sounding device according to claim 1, wherein the spacer includes a metal ring and a mesh fabric disposed on the metal ring, the metal ring abuts against a side of the sounding unit facing away from the sounding hole, the mesh fabric is disposed on a side of the metal ring facing away from the sounding unit, and the through hole penetrates through the metal ring.

7. The sounding device according to claim 6, wherein the metal ring is further provided with air holes, and the mesh cloth covers the air holes.

8. The sounding device according to claim 7, wherein the ventilation holes comprise a plurality of ventilation holes, the plurality of ventilation holes are arranged at intervals along the circumferential direction of the metal ring, and the mesh cloth covers the plurality of ventilation holes.

9. The sound generating device 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 to the sound generating unit;

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

10. The sound generating device according to any one of claims 1 to 9, further comprising a front shell, wherein the front shell is connected to a side of the casing facing away from the mounting opening and is opposite to the sound outlet hole, an end of the front shell and an end of the casing where the sound outlet hole is located are enclosed to form a sound outlet channel communicated with the sound outlet hole, the front shell is further provided with a side sound outlet communicated with the sound outlet channel, and the side sound outlet is located on a peripheral side of the casing.

11. The sound generating apparatus as claimed in claim 10, wherein the front casing includes a chassis and a sound emitting member connected to the chassis, the sound emitting member is provided with the side sound outlet, a support platform is provided on a side of the chassis facing the casing, the support platform extends along a periphery of the chassis and forms a recessed groove communicating with the side sound outlet, and the casing is supported on the support platform and connected to the sound emitting member.

12. The sound generating apparatus as claimed in claim 11, wherein the chassis includes a support ring and an insert connected to the sound-emitting member, the inner wall of the support ring is provided with a recessed groove, the periphery of the insert is embedded in the recessed groove, the support ring protrudes from a side of the insert facing the housing to form the support platform, the insert and the sound-emitting member surround to form the recessed groove, and the insert is a metal sheet.

13. The sound emitting device of claim 12, wherein the front housing is a metal piece;

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

a first sound-generating device according to any one of claims 1 to 9, wherein the first sound-generating device is disposed in the device housing, and the sound outlet is opposite to the first sound outlet; and

a second sound-generating device according to any one of claims 10 to 13, wherein the second sound-generating device is disposed in the device housing, and the side sound outlet is opposite to the second sound outlet.