CN214507324U

CN214507324U - Sound production device and electronic equipment

Info

Publication number: CN214507324U
Application number: CN202120867641.2U
Authority: CN
Inventors: 李兆鹏; 陈国强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-10-26
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a sounding device and electronic equipment, this sounding device includes the casing, sound guide, metal support and sound production monomer, the casing is equipped with and holds chamber and sound outlet, sound guide locates and holds the chamber, and surround sound outlet setting, form the sound channel with enclosing to close, sound guide and casing injection moulding structure as an organic whole, metal support locates and holds the intracavity, metal support is equipped with the storage tank that communicates with the sound channel, one side that metal support is close to sound guide is equipped with lets the position mouth, sound guide is located the position mouth, the relative lateral wall of the position mouth of stepping down links to each other with sound guide's periphery wall respectively, it is spacing to metal support with through sound guide, sound production monomer establishes in the storage tank, sound production monomer, the storage tank and the inner wall that holds the chamber enclose the preceding sound chamber that closes formation intercommunication sound channel. The utility model aims at providing a sound production device that sound chamber is bulky, heat dispersion is good, and this sound production device not only heat dispersion is good, and has effectively improved acoustic performance.

Description

Sound production device and electronic equipment

Technical Field

The utility model relates to an electroacoustic conversion technical field, in particular to electronic equipment of sounder and applied this sounder.

Background

The sound generating device is widely applied to portable mobile electronic products, such as mobile phones, so that the audio signals are converted into sound to be played, the sound generating device is high in loudness, and the low-frequency sound effect is good.

In the correlation technique, the structure of the fixed monomer and the integral injection molding of the shell are influenced by the shell molding process, the space below the monomer cannot be utilized, and the volume of the rear cavity is lost, so that the acoustic performance of the sound production device is reduced, and the shell is large in thickness, so that the heat dissipation of the monomer is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sounder and electronic equipment, aim at providing a sounder that heat dispersion is good, and this sounder not only heat dispersion is good, and has effectively improved acoustic performance.

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

the shell is provided with a containing cavity and a sound outlet;

the sound guide piece is arranged in the cavity and surrounds the sound outlet so as to form a sound outlet channel in a surrounding manner, and the sound guide piece and the shell are of an integral injection molding structure;

the metal support is arranged in the cavity and provided with an accommodating groove communicated with the sound outlet channel, one side of the metal support, which is close to the sound guide piece, is provided with a yielding port, the sound guide piece is positioned in the yielding port, and opposite side walls of the yielding port are respectively connected with the outer peripheral wall of the sound guide piece so as to limit the metal support through the sound guide piece; and

the sound production unit is arranged in the accommodating groove, and the sound production unit, the accommodating groove and the inner wall of the accommodating cavity are enclosed to form a front sound cavity communicated with the sound outlet channel.

In an embodiment, a positioning table is formed on the inner wall of the relief opening, and at least part of the sound guide member is in limit abutment with the positioning table.

In an embodiment, metal support is including the installation department, first supporting part and the second supporting part that connect gradually, the installation department with the second supporting part is located the relative both ends of first supporting part, and extend towards the direction that deviates from mutually, the installation department with the interior wall connection who holds the chamber is in order to enclose and close the formation the storage tank, the sound production monomer with the spacing butt of second supporting part, and with the installation department interval closes with the lid the notch of storage tank, let the position mouth run through simultaneously the installation department first supporting part reaches the second supporting part, the second supporting part is equipped with the location platform.

In an embodiment, the metal support further includes a limiting portion bent and extended along the outer periphery of the sounding single body by the outer periphery of the second supporting portion, and the limiting portion is disposed around the outer periphery of the sounding single body.

In one embodiment, the mounting portion and the second supporting portion are arranged in parallel;

and/or the first supporting part and the limiting part are arranged in parallel;

and/or, the first supporting part with the contained angle of installation department is the obtuse angle setting.

In an embodiment, the periphery wall of sound guide is equipped with spacing platform, spacing platform is including being first surface and the second surface that the contained angle set up, first supporting part with the spacing connection of first surface, the second supporting part with the spacing connection of second surface, so that at least part of sound guide with the spacing butt of location platform.

In one embodiment, the metal bracket is formed into an integral stamping structure by adopting a stamping forming mode;

and/or the metal bracket is connected with the inner wall of the cavity through gluing or laser welding.

In an embodiment, the casing is made of a metal material, the casing includes a surrounding plate, a first cover plate and a second cover plate, the surrounding plate is arranged in an annular shape and is provided with the sound outlet, the first cover plate and the second cover plate are respectively covered on two opposite sides of the surrounding plate and surround with the surrounding plate to form the cavity, the sound guide member and the surrounding plate are of an integral injection molding structure, and the metal bracket is connected with the first cover plate;

the extending direction of the sound outlet channel and the first cover plate form an included angle.

In an embodiment, the casing is further provided with a sound absorption cavity spaced from the accommodating cavity and a through hole communicated with the sound absorption cavity, and the sound absorption cavity is used for accommodating a sound absorption material;

the sounding device further comprises a damping part which is covered on the through hole.

The utility model discloses still provide an electronic equipment, including equipment main part and above-mentioned sound production device, sound production device locates equipment main part.

The sound production device of the technical scheme of the utility model is characterized in that the sound guide part is integrally molded on the shell, and the metal support is provided with the abdication port, so that the sound guide part is positioned in the abdication port of the metal support, and the opposite side walls of the abdication port are respectively connected with the outer peripheral wall of the sound guide part, thereby realizing the limit installation of the metal support through the sound guide part; simultaneously, through with metal support and casing components of a whole that can function independently setting, make metal support's structure not influenced by casing technology, thereby effectively reduced metal support occupy the volume in back sound chamber, guarantee the volume in back sound chamber, and establish sound production monomer in the storage tank, make sound production monomer, the storage tank and hold the inner wall of chamber enclose and close the preceding sound chamber that forms the intercommunication sound channel, thereby improve low frequency acoustic performance, and make things convenient for sound production monomer to realize the heat dissipation through metal support and casing, improve sound production device's heat dispersion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 view of a sound generating device according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a sound generating device according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is a schematic cross-sectional view of a sound generating device according to an embodiment of the present invention;

fig. 5 is a schematic view of a part of the structure of the housing according to an embodiment of the present invention;

fig. 6 is a schematic view of a portion of the structure of the shell connected to the metal bracket according to an embodiment of the present invention;

fig. 7 is a schematic view of a part of the structure of the metal bracket and the sounding unit mounted on the housing according to an embodiment of the present invention.

The reference numbers illustrate:

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

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, 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 motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied.

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

The sound generating device is widely applied to portable mobile electronic products, such as mobile phones, so that the audio signals are converted into sound to be played, the sound generating device is high in loudness, and the low-frequency sound effect is good. In the correlation technique, the structure of the fixed monomer and the integral injection molding of the shell are influenced by the shell molding process, the space below the monomer cannot be utilized, and the volume of the rear cavity is lost, so that the acoustic performance of the sound production device is reduced, and the shell is large in thickness, so that the heat dissipation of the monomer is influenced.

Based on the above concepts and problems, the present invention provides a sound producing device 100. It is understood that the sound generating device 100 can be applied to electronic devices, such as mobile phones, portable mobile electronic products such as IPAD, etc., and is not limited herein.

Referring to fig. 1 to 7, in the embodiment of the present invention, the sound generating device 100 includes a housing 1, a sound guiding member 12, a metal frame 2 and a sound generating unit 3, wherein, the shell 1 is provided with a cavity 1a and a sound outlet 111, the sound guide piece 12 is arranged in the cavity 1a and surrounds the sound outlet 111, so as to form a sound outlet channel 1d by enclosing, the sound guide piece 12 and the shell 1 are an integral injection molding structure, the metal bracket 2 is arranged in the containing cavity 1a, the metal bracket 2 is provided with a containing groove 2a communicated with the sound outlet channel 1d, one side of the metal bracket 2 close to the sound guide piece 12 is provided with a position yielding port 26, the sound guide piece 12 is arranged in the position yielding port 26, opposite side walls of the position yielding port 26 are respectively connected with the outer peripheral wall of the sound guide piece 12, the metal support 2 is limited through the sound guide piece 12, the sound generating single body 3 is arranged in the accommodating groove 2a, and the sound generating single body 3, the accommodating groove 2a and the inner wall of the accommodating cavity 1a are enclosed to form a front sound cavity 1b communicated with the sound outlet channel 1 d.

It can be understood that the casing 1 of the sound generating device 100 is used to provide a mounting base for the metal support 2 and the sound generating unit 3, and the casing 1 has a cavity 1a for conveniently mounting and protecting the sound generating unit 3. Alternatively, the structure of the housing 1 may be a mounting case, a box body or a box body with the receiving cavity 1 a. In order to facilitate the sound generated by the sound generating unit 3 to be smoothly transmitted from the cavity 1a, the housing 1 is provided with a sound outlet 111 communicating with the cavity 1 a.

In this embodiment, the sound guide 12 is disposed in the cavity 1a and surrounds the sound outlet 111 to form a sound outlet channel 1d, so that the sound generated by the sound generating unit 3 can be transmitted from the cavity 1a and the sound outlet 111 through the sound outlet channel 1d formed by the sound guide 12. It can be understood that the sound guide 12 and the housing 1 are integrally injection molded, that is, the sound guide 12 is integrally injection molded in the cavity 1a of the housing 1.

Alternatively, the housing 1 is made of a metal material. The housing 1 may be a separate structure or an integrated structure, which is not limited herein. The sound production monomer 3 is including the vibrating diaphragm 31 that is used for the vibration sound production, and sound production monomer 3 is equipped with the spacing butt of one side and metal support 2 of vibrating diaphragm 31 to form sealed fixed with metal support 2, thereby make sound production monomer 3, metal support 2 and hold the inner wall of chamber 1a and enclose and close the preceding vocal chamber 1b that forms intercommunication vocal passageway 1d, sound production monomer 3, metal support 2 and casing 1's inner wall enclose into inclosed back vocal chamber 1c jointly.

Alternatively, the metal bracket 2 is made of a metal material. The sounding monomer 3 is supported by the metal support 2 made of metal materials, and the structural firmness and the interaction of the metal materials are strong, so that the metal support 2 can be made of a thin steel sheet, the volume of the rear sound cavity 1c occupied by the metal support 2 is effectively reduced, the volume of the rear sound cavity 1c is ensured, and the low-frequency acoustic performance of the sounding device 100 is improved.

It can be understood that the casing 1 is made of a metal material, and the casing 1 can be made of a thin steel sheet, so that the casing 1 can be designed to be thinner, the volume of the cavity in the casing 1 is greatly increased, the volume of the rear sound cavity 1c enclosed by the sound generating monomer 3 and the casing 1 is effectively increased, and then the acoustic performance, especially the low-frequency acoustic performance, of the sound generating device 100 is improved. In the present embodiment, the sounding unit 3 is fixed to the metal bracket 2, so that heat dissipation can be achieved through the metal bracket 2 and the housing 1 made of a metal material, and the heat dissipation performance of the sounding device 100 is improved.

In this embodiment, metal support 2 is equipped with lets a mouthful 26 corresponding to sound guide 12, and sound guide 12 is located lets a mouthful 26 for let a mouthful 26 relative lateral wall link to each other with sound guide 12's periphery wall respectively, like the sound guide 12 of figure accessible integrated into one piece in casing 1 realize spacingly to metal support 2, realize the quick location installation of metal support 2, and improve and connect the leakproofness. Alternatively, the metal holder 2 is connected to the inner wall of the housing 1a by gluing or laser welding.

The sound production device 100 of the present invention is formed by integrally injection-molding the sound guide 12 on the housing 1, and the metal bracket 2 is provided with the abdication port 26, so that the sound guide 12 is located in the abdication port 26 of the metal bracket 2, and the opposite side walls of the abdication port 26 are respectively connected to the outer peripheral wall of the sound guide 12, thereby realizing the limit installation of the metal bracket 2 through the sound guide 12; meanwhile, through setting up metal support 2 and 1 components of a whole that can function independently of casing, make the structure of metal support 2 not influenced by 1 technology of casing, thereby effectively reduced the volume that metal support 2 took back sound chamber 1c, guarantee the volume of back sound chamber 1c, and establish sound production monomer 3 in storage tank 2a, make sound production monomer 3, storage tank 2a and the inner wall that holds chamber 1a enclose and close the preceding sound chamber 1b that forms intercommunication sound channel 1d, thereby improve the low frequency acoustic performance of vocal ware 100, and make things convenient for sound production monomer 3 to realize the heat dissipation through metal support 2 and casing 1, improve the heat dispersion of vocal ware 100.

In an embodiment, the casing 1 includes a surrounding plate 11, a first cover plate 13 and a second cover plate 14, the surrounding plate 11 is disposed in a ring shape and is provided with a sound outlet 111, the first cover plate 13 and the second cover plate 14 are respectively disposed on two opposite sides of the surrounding plate 11 and surround with the surrounding plate 11 to form a cavity 1a, the sound guide 12 and the surrounding plate 11 are an integral injection molding structure, and the metal bracket 2 is connected to the first cover plate 13.

As shown in fig. 1 to 7, the housing 1 is provided with three parts, namely, a shroud 11, a first cover 13 and a second cover 14, that is, the housing 1 is a split structure. It can be understood that the coaming 11, the first cover plate 13 and the second cover plate 14 of the casing 1 are made of metal materials, the three can be made of thin steel sheets, at the moment, the first cover plate 13 and the second cover plate 14 can be fixed with the coaming 11 in a metal welding mode, the structure can ensure the structural strength of the casing 1, compared with the all-plastic casing structure of the related art, the casing 1 can be designed to be thinner, thereby greatly improving the cavity volume in the casing 1, effectively increasing the volume of a rear sound cavity 1c enclosed by the sound generating monomer 3 and the casing 1, and further improving the acoustic performance of the sound generating device 100, particularly the low-frequency acoustic performance.

Meanwhile, the metal support 2 made of metal materials supports the sounding monomer 3, the metal support 2 can be made of thin steel sheets, and compared with plastic metal supports in the related art, the metal support 2 effectively reduces the volume of the rear sound cavity 1c occupied by the metal support 2, ensures the volume of the rear sound cavity 1c, and accordingly improves low-frequency acoustic performance. Meanwhile, the thinner metal support 2 is also beneficial to heat dissipation of the sounding monomer 3, and the heat dissipation effect is improved.

In the present embodiment, as shown in fig. 4 to 7, the sound guide 12 is provided with a sound guide cavity 121, and the sound guide 12 is disposed around the sound outlet 111 so that the sound guide cavity 121 and the sound outlet 111 communicate with each other and enclose to form the sound outlet channel 1 d. Through leading sound spare 12 an organic whole and setting up on bounding wall 11 of casing 1, not only improved the stability of being connected and the sealing performance of leading sound spare 12 with bounding wall 11 of casing 1, also conveniently utilize simultaneously to lead sound spare 12 and realize the positioning action to metal support 2. It will be appreciated that the sound guide 12 is located between the sound outlet 111 and the relief port 26, and the sound outlet 111 penetrates the shroud 11 of the housing 1 to communicate with the outside. Alternatively, the shroud 11 and the sound guide 12 of the housing 1 are of an integrally formed structure.

In an embodiment, as shown in fig. 4 to 7, the sound guide 12 includes a first section 122, a second section 123 extending from two opposite ends of the first section 122 to the first cover plate 13, and a third section 124 disposed opposite to the first section 122, where the first section 122, the two second sections 123, and the third section 124 surround to form a sound guide cavity 121, the third section 124 is connected to the first cover plate 13 and forms a limiting groove 112 with the surrounding plate 11 of the housing 1, a portion of the first cover plate 13 is accommodated and limited in the limiting groove 112, and the second section 123 is connected to an inner wall of the abdicating opening 26.

In this embodiment, the sound guide 12 is configured as a first section 122, two second sections 123 and a third section 124, so that the first section 122, the two second sections 123 and the third section 124 enclose to form a sound guide cavity 121, thereby ensuring that the metal bracket 2 is in sealed connection with the two second sections 123 of the sound guide 12, ensuring that the sound guide 12 is limited at the abdicating opening 26 of the metal bracket 2, and positioning the metal bracket 2.

In one embodiment, as shown in fig. 3, the positioning table 27 is formed on the inner wall of the relief opening 26, the sound guide 12 is located in the relief opening 26, and at least a portion of the sound guide 12 is in limit-abutting contact with the positioning table 27.

In this embodiment, set up location platform 27 through the mouth 26 inner wall of stepping down at metal support 2, so when sound guide 12 is located stepping down mouth 26, utilize the location platform 27 of metal support 2 and the spacing butt of sound guide 12 to further realize the location installation to metal support 2, improve the installation effectiveness. It can be understood that, when the sound guide 12 is located in the relief opening 26, the positioning platform 27 of the metal bracket 2 is in limit abutment with the second section 123 of the sound guide 12, that is, the end of the second section 123 far away from the sound outlet 111 is in abutment with the positioning platform 27.

In an embodiment, the metal bracket 2 includes an installation portion 21, a first supporting portion 22 and a second supporting portion 23 that are connected in sequence, the installation portion 21 and the second supporting portion 23 are located at two opposite ends of the first supporting portion 22, and extend towards a direction that deviates from each other, the installation portion 21 is connected with an inner wall that holds the cavity 1a to enclose and form the accommodating groove 2a, the sounding unit 3 is abutted to the second supporting portion 23 in a limiting manner, and is spaced from the installation portion 21 to cover a notch of the accommodating groove 2a, the let-off opening 26 simultaneously penetrates through the installation portion 21, the first supporting portion 22 and the second supporting portion 23, and the second supporting portion 23 is provided with a positioning table 27.

As shown in fig. 2, 3, 4 and 6, by providing the metal bracket 2 as the mounting portion 21, the first support portion 22 and the second support portion 23 which are integrally connected, such that the mounting portion 21 and the second support portion 23 are located at opposite ends of the first support portion 22, and extend towards the direction opposite to each other, so that the mounting part 21 of the metal bracket 2 can be connected with the inner wall of the containing cavity 1a, namely the mounting part 21 is connected with the first cover plate 13, one side of the sounding monomer 3 provided with the vibrating diaphragm 31 is in limit abutting joint with the second supporting part 23 of the metal bracket 2 and forms sealing fixation with the metal bracket 2, therefore, the bottom walls of the sound generating unit 3, the first supporting part 22, the mounting part 21 and the accommodating groove 2a enclose a front sound cavity 1b communicated with the sound outlet channel 1d, and the inner walls of the sound generating unit 3, the first supporting part 22 and the shell 1 enclose a closed rear sound cavity 1 c.

It can be understood that, the installation department 21 and the first apron 13 fixed connection of metal support 2, the installation department 21 that also is metal support 2 is range upon range of setting with first apron 13, so can effectively increase the area of contact of the installation department 21 of metal support 2 and first apron 13 to improve the stability of being connected of metal support 2 and casing 1, and then improve the installation stability of sound production monomer 3.

Optionally, the mounting portion 21 of the metal bracket 2 and the first cover plate 13 are fixed and hermetically connected by gluing or laser welding, and the third section 124 of the sound guide 12 and the surrounding plate 11 of the housing 1 form a limiting groove 112, so that a part of the first cover plate 13 is accommodated and limited in the limiting groove 112 and connected with the third section 124, thereby improving the connection stability and improving the sealing performance.

In this embodiment, the yielding opening 26 of the metal bracket 2 simultaneously penetrates through the mounting portion 21, the first supporting portion 22 and the second supporting portion 23, so that one end of the sound guide 12, which is far away from the shroud plate 11 of the casing 1, is connected with the inner wall of the yielding opening 26, that is, both the first supporting portion 22 and the second supporting portion 23 of the metal bracket 2 are fixedly connected with the periphery or the outer wall of the sound guide 12, so as to improve the connection sealing performance. In the present embodiment, the front sound chamber 1b communicates with the sound outlet 111 through the sound guide chamber 121 of the sound guide 12 to form a side sound emission structure of the sound emitting device 100.

The utility model discloses a sound production device 100 is through setting up metal support 2 in the appearance chamber 1a of casing 1 for metal support 2 is including the installation department 21, first supporting part 22 and the second supporting part 23 that connect gradually, and installation department 21 and second supporting part 23 are located the relative both ends of first supporting part 22, and extend towards the direction that deviates from mutually, thereby make things convenient for metal support 2 to be connected with the inner wall that holds chamber 1a through installation department 21, in order to enclose and form the storage tank 2a that communicates sound channel 1d, utilize installation department 21 increase and hold the area of contact of chamber 1a inner wall like this, improve the installation stability; meanwhile, the sounding unit 3 is supported by the first supporting part 22 by limiting and abutting the sounding unit 3 with the second supporting part 23 of the metal bracket 2, so as to be spaced from the mounting part 21, so as to cover the notch of the accommodating groove 2a, and the sounding unit 3, the first supporting part 22, the mounting part 21 and the inner wall of the accommodating cavity 1a are enclosed to form a front sound cavity 1b communicated with the sound outlet channel 1d, and the sounding unit 3, the first supporting part 22 and the inner wall of the accommodating cavity 1a are enclosed to form a closed rear sound cavity 1c, so that the space below the sounding unit 3 is utilized while the sounding unit 3 is supported and limited by the first supporting part 22 and the second supporting part 23 of the metal bracket 2, so that the volume of the rear sound cavity 1c enclosed by the sounding unit 3 and the shell 1 is increased, and the acoustic performance, especially the low-frequency acoustic performance of the sounding device 100 is improved; in addition, the metal support 2 and the shell 1 are arranged in a split mode, so that the structure of the metal support 2 is not affected by the process of the shell 1, the size of the rear sound cavity 1c occupied by the metal support 2 is effectively reduced, the size of the rear sound cavity 1c is guaranteed, low-frequency acoustic performance is improved, heat dissipation of the sounding unit 3 is facilitated through the metal support 2 and the shell 1, and heat dissipation performance of the sounding device is improved.

Optionally, the joint between the mounting portion 21 and the first supporting portion 22 is rounded. The junction of the first support part 22 and the second support part 23 is in a smooth transition arrangement or in a round angle arrangement.

In an embodiment, the metal bracket 2 further includes a limiting portion 24 extending from the outer periphery of the second supporting portion 23 along the outer periphery of the sound generating unit 3, and the limiting portion 24 is disposed around the outer periphery of the sound generating unit 3.

As shown in fig. 2, 3, 4 and 6, in the present embodiment, the limiting portion 24 is formed by bending and extending the outer periphery of the second supporting portion 23, so that the limiting portion 24 is disposed around the outer periphery of the sound-generating unit 3, thereby effectively improving the reliability of the sealing between the metal bracket 2 and the sound-generating unit 3. Optionally, the connection between the limiting portion 24 and the second supporting portion 23 is smoothly transited or rounded.

It can be understood, spacing portion 24 extends towards one side of second supporting portion 23 first supporting portion 22 dorsad, make spacing portion 24 be contained angle or perpendicular setting with second supporting portion 23, so can make spacing portion 24 and second supporting portion 23 enclose the spacing space that closes formation intercommunication storage tank 2a, thereby conveniently utilize the cooperation of spacing portion 24 and second supporting portion 23 to realize spacing installation to sound production monomer 3, and utilize spacing portion 24 to encircle the outer peripheral edge setting of sound production monomer 3, make and form sealed fixed between spacing portion 24 and the sound production monomer 3, so effectively guarantee back sound cavity 1c and form airtight space, thereby be used for improving low frequency acoustic performance.

In an embodiment, the metal bracket 2 further includes a flanging portion 25 formed by bending one end of the limiting portion 24 away from the second supporting portion 23 toward a direction away from the sounding single body 3, and the flanging portion 25 is disposed around an outer periphery of the sounding single body 3.

As shown in fig. 2, 3, 4 and 6, in this embodiment, the flanging portion 25 is disposed at one end of the limiting portion 24 away from the second supporting portion 23, so that the flanging portion 25 is bent and extended toward the direction away from the sounding single body 3, thereby avoiding the influence of the end of the second supporting portion 23 on the installation process of the sounding single body 3, and avoiding scratching the sounding single body 3 and its components.

It can be understood that the provision of the flanging portion 25 is also beneficial to increase the supporting area of the conductive member 32 of the sound generating unit 3, so as to further improve the installation stability of the sound generating unit 3. Optionally, the connection between the flanging part 25 and the limiting part 24 is in a smooth transition or in a round corner.

In one embodiment, the mounting portion 21, the first supporting portion 22, the second supporting portion 23, the limiting portion 24 and the flanging portion 25 are integrally formed. It can be understood that, by arranging the metal bracket 2 as an integrally formed structure, it is possible to facilitate simplification of the processing steps of the metal bracket 2 and to improve the structural strength of the metal bracket 2.

Alternatively, the metal bracket 2 is formed into an integral stamping structure by a stamping forming method, that is, the metal bracket 2 is formed into the mounting portion 21, the first supporting portion 22, the second supporting portion 23, the limiting portion 24 and the flanging portion 25 which are connected in sequence by the stamping forming method.

In an embodiment, as shown in fig. 3 and 4, the mounting portion 21 and the second supporting portion 23 are optionally arranged in parallel, and such arrangement is beneficial to increase the contact area between the second supporting portion 23 and the sound generating unit 3, so as to improve the connection stability. Optionally, the first supporting portion 22 and the limiting portion 24 are disposed in parallel.

In one embodiment, as shown in fig. 3 and 4, the included angle between the first supporting portion 22 and the mounting portion 21 is an obtuse angle. It will be appreciated that the arrangement is such that the first support portion 22 of the metal bracket 2 is inclined, thereby effectively increasing the volume of the rear acoustic chamber 1c to improve low frequency acoustic performance.

In one embodiment, the peripheral wall of the sound guiding member 12 is provided with a limiting platform 125, the limiting platform 125 includes a first surface 126 and a second surface 127 which are arranged at an included angle, the first supporting portion 22 is in limiting connection with the first surface 126, and the second supporting portion 23 is in limiting connection with the second surface 127, so that at least part of the sound guiding member 12 is in limiting abutment with the positioning platform 27.

As shown in fig. 5 and 6, the limiting table 125 is integrally connected to the second section 123 of the sound guide 12, and the limiting table 125 is disposed to have a first surface 126 and a second surface 127 disposed at an included angle, so that the first supporting portion 22 of the metal bracket 2 is in limiting abutment with the first surface 126, and the second supporting portion 23 is in limiting abutment with the second surface 127.

It can be understood that, as shown in fig. 3, the positioning table 27 is disposed on the second supporting portion 23, that is, the end of the second supporting portion 23 adjacent to the relief opening 26, and the positioning table 27 is formed on the side facing the limiting portion 24, so that when the second supporting portion 23 is in limiting abutment with the second surface 127, the positioning table 27 is in limiting abutment with the second section 123 of the sound guide 12.

In the present embodiment, by providing the position restricting table 125, the connection stability and the sealing property with the first and

second support parts

22 and 23 of the metal bracket 2 can be further improved by the first and

second surfaces

126 and 127 of the position restricting table 125. It can be understood that the first supporting portion 22 of the metal bracket 2 is in limit abutment with the first surface 126, the second supporting portion 23 of the metal bracket 2 is in limit abutment with the second surface 127, and the limit portion 24 and the flanging portion 25 of the metal bracket 2 are in limit abutment with the outer wall of the second section 123.

Optionally, the first supporting portion 22 of the metal bracket 2 is fixed and hermetically connected to the first surface 126 by gluing or laser welding, the second supporting portion 23 of the metal bracket 2 is fixed and hermetically connected to the second surface 127 by gluing or laser welding, and the limiting portion 24 and the flanging portion 25 of the metal bracket 2 are fixed and hermetically connected to the outer wall of the second section 123 by gluing or laser welding.

In an embodiment, as shown in fig. 4, the periphery of the sound-generating unit 3 is in limit abutment with a side of the first section 122 facing away from the enclosure 11 of the housing 1, that is, a side of the sound-generating unit 3 corresponding to the abdicating opening 26 of the metal bracket 2 is in limit abutment with a side of the first section 122 facing away from the enclosure 11 of the housing 1, so as to ensure the sealing property of the rear sound cavity 1 c.

In one embodiment, the mounting portion 21 is connected to the inner wall of the housing 1a by gluing or laser welding. As shown in fig. 5, the inner wall of the housing 1a is coated with glue, so that the metal bracket 2 is fixed and hermetically connected with the inner wall of the housing 1a through the mounting portion 21. Of course, the mounting portion 21 may be fixed and hermetically connected to the inner wall of the housing 1a by laser welding. It can be understood that the installation part 21 and the inner wall of the cavity 1a can be fixed by gluing, and the sealing performance is ensured while the connection is further strengthened by laser welding.

In one embodiment, as shown in fig. 4, the sound outlet channel 1d extends at an angle to the first cover plate 13, i.e. the first section 122 and the third section 124 of the sound guide 12 are inclined from the end of the enclosure 11 of the housing 1 towards the first cover plate 13. Optionally, the first section 122 is disposed in parallel with the third section 124.

Alternatively, the first, second and

third sections

122, 123, 124 of the sound guide 12 are formed as an integral structure, so that the sealing property and the structural stability of the sound guide 12 can be ensured. In the present embodiment, the shroud 11 of the casing 1 and the first, second and

third sections

122, 123, 124 of the sound guide 12 are integrally formed.

In an embodiment, the casing 1 further has a sound absorbing cavity spaced from the cavity 1a and a through hole 141 communicating with the sound absorbing cavity, and the sound absorbing cavity is used for accommodating a sound absorbing material; the sound-producing device 100 further includes a damper 4 covering the through hole 141.

In this embodiment, the chamber 1a of casing 1 and sound-absorbing chamber accessible are inserted screen cloth isotructure form vertically and are carried out the interval, and casing 1's chamber 1a is used for installing sound production monomer 3, and casing 1's sound-absorbing chamber is used for holding sound-absorbing material etc.. It is understood that the sound absorbing material is filled in the through holes 141 by providing the through holes 141 in the second cover plate 14. Through setting up damping part 4 to avoid impurity or dust etc. to get into in holding chamber 1a through perforating hole 141, influence sound production monomer 3 and normally work.

In this embodiment, the sound generating unit 3 further includes a conductive member 32 for connecting the sound generating unit 3 with an external electrical signal. As shown in fig. 2 and 7, the conductive device 32 includes a conductive device body located in the cavity 1a, a connecting arm extending from two ends of the conductive device body to the sounding monomer 3 and electrically connected to the sounding monomer 3, and an extending arm extending from the conductive device body to a direction far away from the sounding monomer 3 and penetrating through the housing 1. As can be understood, the extension arm penetrates through the coaming 11 of the shell 1, the structure is convenient to assemble, and the position of the coaming 11 penetrating through the shell 1 can be used as assembling positioning in advance, so that the assembling efficiency is improved.

The utility model discloses still provide an electronic equipment, this electronic equipment includes equipment subject and sound production device 100, and equipment subject is located to sound production device 100. The specific structure of the sound generating device 100 refers to the foregoing embodiments, and since the electronic device 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.

The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent structure transformation of the content of the specification and the attached drawings, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A sound device, comprising:

the shell is provided with a containing cavity and a sound outlet;

2. The sound production device of claim 1, wherein the inner wall of the relief opening is formed with a positioning table, and at least part of the sound guide is in limit abutment with the positioning table.

3. The sound production device according to claim 2, wherein the metal bracket comprises an installation portion, a first supporting portion and a second supporting portion which are connected in sequence, the installation portion and the second supporting portion are located at two opposite ends of the first supporting portion and extend towards a direction away from each other, the installation portion is connected with the inner wall of the accommodating cavity to form the accommodating cavity in a surrounding manner, the sound production unit is in limit abutting connection with the second supporting portion and is spaced from the installation portion to cover the notch of the accommodating cavity, the notch of the accommodating cavity penetrates through the installation portion, the first supporting portion and the second supporting portion simultaneously, and the second supporting portion is provided with the positioning table.

4. The sound-generating device according to claim 3, wherein the metal bracket further includes a limiting portion extending from the outer periphery of the second supporting portion along the outer periphery of the sound-generating unit, and the limiting portion is disposed around the outer periphery of the sound-generating unit.

5. The sounder device according to claim 4, wherein said mounting portion is disposed parallel to said second support portion;

6. The sound production device as claimed in claim 3, wherein the peripheral wall of the sound guide is provided with a limiting platform, the limiting platform comprises a first surface and a second surface which are arranged at an included angle, the first supporting part is in limiting connection with the first surface, and the second supporting part is in limiting connection with the second surface, so that at least part of the sound guide is in limiting abutment with the positioning platform.

7. The sound production device of any one of claims 1-6, wherein the metal bracket is formed as a one-piece stamped structure by stamping;

8. The sound production device according to any one of claims 1 to 6, wherein the housing is made of a metal material, the housing includes a surrounding plate, a first cover plate and a second cover plate, the surrounding plate is disposed in a ring shape and has the sound outlet, the first cover plate and the second cover plate are respectively disposed on two opposite sides of the surrounding plate and surround the surrounding plate to form the cavity, the sound guide member and the surrounding plate are of an integral injection molding structure, and the metal bracket is connected to the first cover plate;

9. The sound production device according to any one of claims 1 to 6, wherein the housing is further provided with a sound absorption cavity spaced from the cavity and a through hole communicating with the sound absorption cavity, and the sound absorption cavity is used for accommodating a sound absorption material;

10. An electronic device comprising a device body and a sound-producing device according to any one of claims 1 to 9, the sound-producing device being provided to the device body.