CN215529290U

CN215529290U - Sound production device and electronic equipment

Info

Publication number: CN215529290U
Application number: CN202121092123.4U
Authority: CN
Inventors: 刘广福; 申兆垒; 陈阿亮; 陈国强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-01-14
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses a sounding device and electronic equipment, wherein the sounding device comprises a shell, a sound guide piece, a metal insert and a sounding monomer, the shell is provided with a containing cavity and a sound outlet, the sound guide piece is arranged in the containing cavity and surrounds the sound outlet so as to form a sound outlet channel in a surrounding manner, the periphery of the metal insert is connected with the inner wall of the containing cavity and the sound guide piece, the metal insert is matched with the inner wall of the containing cavity and the sound guide piece to form an annular supporting platform, the sounding monomer is supported on the supporting platform and is in gluing sealing fit with the supporting platform, and the sounding monomer, the metal insert and the inner wall of the containing cavity are surrounded to form a front sound cavity communicated with the sound outlet channel. According to the sound production device, the metal insert is arranged, so that the sound production space can be enlarged, and the acoustic performance is improved. Moreover, the metal insert can solve the problem that plastic material injection moulding is deformed, and can improve the sealing effect between the sounding monomer and the supporting table.

Description

Sound production device and electronic equipment

Technical Field

The utility model relates to the technical field of electroacoustic conversion, in particular to a sounding device and electronic equipment applying the sounding device.

Background

As is well known, sound generating devices such as speakers are widely used in portable mobile electronic products, such as mobile phones and IPADs, to convert audio signals into sound for playing, and the sound generating devices have high loudness and good low-frequency sound effect.

In the related art, the sound generating device includes a housing and a speaker unit accommodated in the housing, a sound guide member is disposed on the housing, the sound guide member and the housing of the sound generating device generally form a plastic member, a step structure is formed on an inner peripheral wall of the housing of the sound generating device by injection molding, and the speaker unit is supported and fixed on the step structure by means of glue sealing. However, since the housing is a plastic part, when the housing is injection-molded to form a step structure, due to the shrinkage problem, the step structure may be locally deformed, so that the coating uniformity of the glue may be affected, and the thickness of the sealant layer between the speaker unit and the step structure is also unevenly distributed, thereby reducing the sealability of the sealant layer and the waterproof performance of the sound generating device; simultaneously, consider the demand of structural firmness, the step structure that the leading sound spare of plastic part was moulded plastics and is formed need set up great thickness to occupy the cavity in the casing in the space of direction of height, lead to out the sound space and diminish, influence the unobstructed nature of air current circulation, and then influence the sound producing effect of sound producing device.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a sound production device and electronic equipment, and aims to provide a sound production device which is good in waterproof performance and increases a sound production channel, and the sound production device has good acoustic performance and a waterproof effect.

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

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;

the periphery of the metal insert is connected with the inner wall of the containing cavity and the sound guide piece, so that the metal insert, the inner wall of the containing cavity and the sound guide piece are matched to form an annular supporting table; and

the sounding unit is supported on the supporting table and is in gluing sealing fit with the supporting table, and the sounding unit, the metal insert and the inner wall of the accommodating cavity are enclosed to form a front sounding cavity communicated with the sounding channel.

In an embodiment, the inner wall of the containing cavity is convexly provided with a limiting rib, the limiting rib is connected with the outer peripheral wall of the sound guide piece to form a limiting groove communicated with the sound outlet channel in a surrounding manner, the periphery of the metal insert is respectively connected with the limiting rib and the sound guide piece to form the supporting table, and the sound generating unit is arranged in the limiting groove and is in gluing and sealing connection with the metal insert.

In one embodiment, a step is arranged on one side, facing the limiting groove, of the limiting rib, and the metal insert is connected with the step.

In one embodiment, one end of the limiting rib, which is far away from the bottom wall of the limiting groove, is provided with a guide surface, and the guide surface is obliquely arranged along the direction towards the inside of the limiting groove along the vertical direction;

and/or, the sound guide piece is close to one end of the sound production monomer faces away from one side of the sound outlet channel and is convexly provided with a boss, and the metal insert is provided with a connecting part which is clamped on the boss and is arranged between the sound production monomers.

In one embodiment, the distance between the sounding single body and the bottom wall of the limiting groove is gradually increased along the transmission direction of sound;

or a groove is concavely arranged on the bottom wall of the limiting groove, and the groove is arranged adjacent to the sound guide piece;

or at least one part of the shell corresponding to the limiting groove is a metal steel sheet, and the metal steel sheet and the shell are integrally formed in an injection molding mode.

In one embodiment, the housing includes:

the first shell comprises a bottom plate and a surrounding plate arranged on the periphery of the bottom plate, the surrounding plate and the bottom plate are enclosed to form an accommodating groove, the sound outlet is formed in the surrounding plate, the sound guide piece is connected with the surrounding plate and the bottom plate and is enclosed with the surrounding plate and the bottom plate to form the sound outlet channel, the limiting rib is convexly arranged on the bottom plate and is connected with the outer wall of the sound guide piece and the surrounding plate to form the limiting groove in an enclosing manner, and the periphery of the metal insert is connected with the surrounding plate, the limiting rib and the sound guide piece; and

and the second shell covers the notch of the accommodating groove and is connected with the enclosing plate, so that the second shell, the enclosing plate and the bottom plate are enclosed to form the accommodating cavity.

In an embodiment, the second housing is provided with a position-avoiding hole penetrating along the thickness direction of the sound-generating unit corresponding to the sound-generating unit, and one side of the sound-generating unit, which faces away from the metal insert, is located in the position-avoiding hole.

In one embodiment, the bottom plate, the coaming, the limiting rib and the sound guide piece are of an integrally formed structure;

and/or the metal insert, the coaming, the limiting rib and the sound guide piece are integrally molded by injection;

and/or the bottom plate is also provided with a through hole communicated with the accommodating groove, and the sounding device further comprises a damping part covered on the through hole.

In one embodiment, the metal insert is an integrally formed ring-shaped structure; or the metal insert comprises a plurality of connecting sections which are connected end to form a ring shape, and the connecting sections are in a long strip shape and/or a U shape;

and/or the metal insert is a metal steel sheet;

and/or the thickness of the metal insert is 0.1-0.2 mm

The utility model also provides electronic equipment which comprises an equipment main body and the sounding device, wherein the sounding device is arranged on the equipment main body.

According to the technical scheme, the periphery of the metal insert is connected with the inner wall of the cavity of the shell and the sound guide piece by arranging the metal insert, so that the metal insert is matched with the inner wall of the cavity and the sound guide piece to form the annular support table, the annular support table is used for supporting and fixing the sound generating unit, the support table is convenient to glue, the sound generating unit is supported on the support table and is in sealing connection through the glue, the sound generating unit, the metal insert and the inner wall of the cavity are encircled to form the front sound cavity communicated with the sound outlet channel, and therefore the waterproof effect of the front sound cavity of the sound generating device can be improved; meanwhile, the metal insert is used for replacing a step structure formed by injection molding of the sound guide piece in the traditional sound production device, so that the problem that a pit is generated in the injection molding process to influence the glue coating is avoided, the heights of the front sound cavity and the sound outlet channel are effectively increased, the smoothness of airflow of the front sound cavity is facilitated, and the acoustic performance of the sound production device is improved.

Drawings

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

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

FIG. 3 is a schematic structural view of another perspective of a sound device according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged schematic view at B in FIG. 4;

FIG. 6 is a cross-sectional view of a sound device according to another embodiment of the present invention;

FIG. 7 is a cross-sectional view of a sound device according to yet another embodiment of the present invention;

FIG. 8 is a schematic partial cross-sectional view of a sound device according to yet another embodiment of the present invention;

fig. 9 is a schematic structural view illustrating a connection between the first housing and the metal insert according to an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Sound production device	12	Second shell
1	Shell body	121	Avoiding hole
				1a	Containing chamber	2	Sound conducting piece
11	First shell	21	Sound channel
				11a	Containing groove		22	Boss
111	Base plate	3	Metal insert
				1111	Through hole	31	Supporting table
112	Boarding board	32	Connecting part
				1121	Sound outlet	4	Sound monomer
113	Spacing rib	51	Front acoustic cavity
				1131	Limiting groove	52	Rear acoustic cavity
1132	Step	6	Damping member
				1133	Groove	7	Conductive member
1134	Guide surface

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 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, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes 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 such 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.

Based on the above-mentioned 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 9, in an embodiment of the present invention, the sound generating device 100 includes a housing 1, a sound guiding element 2, a metal insert 3, and a sound generating unit 4, wherein the housing 1 is provided with a cavity 1a and a sound outlet 1121, the sound guiding element 2 is disposed in the cavity 1a and surrounds the sound outlet 1121 to form a sound outlet channel 21 by enclosure, a periphery of the metal insert 3 is connected to an inner wall of the cavity 1a and the sound guiding element 2, so that the metal insert 3, the inner wall of the cavity 1a and the sound guiding element 2 cooperate to form an annular supporting platform 31, the sound generating unit 4 is supported on the supporting platform 31 and is in rubber-coated sealing fit with the supporting platform 31, and the sound generating unit 4, the metal insert 3, and the inner wall of the cavity 1a enclose to form a front sound cavity 51 communicating with the sound outlet channel 21.

It can be understood that the housing 1 of the sound generating device 100 is used to provide a mounting base for the sound guide 2, the metal insert 3, the sound generating unit 4 and other components, and for convenience of mounting and protecting the sound generating unit 4, the housing 1 has a cavity 1 a. 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 4 to be smoothly transmitted from the cavity 1a, the housing 1 is provided with a sound outlet 1121 communicating with the cavity 1 a.

In this embodiment, the sound guiding member 2 is disposed in the cavity 1a and surrounds the sound outlet 1121 to form a sound outlet channel 21, so that the sound generated by the sound generating unit 4 can be transmitted from the cavity 1a and the sound outlet 1121 through the sound outlet channel 21 formed by the sound guiding member 2.

It is understood that the sound-guiding member 2 and the housing 1 may be integrally formed, for example, by welding or integral injection molding, so as to improve the connection stability and sealing performance of the sound-guiding member 2 and the housing 1. Of course, in other embodiments, the sound guide 2 and the housing 1 may also be connected into a whole by detachable connection methods such as snap connection, insertion fit, screw connection, or pin connection, so that the sound guide 2 and the housing 1 can be conveniently assembled and disassembled, which is not limited herein.

In this embodiment, as shown in fig. 2 and fig. 4 to 9, the sound guide 2 is provided with a sound guide cavity, and the sound guide 2 is disposed in the cavity 1a of the housing 1 by gluing, welding or integral injection molding, so that the sound guide 2 and the inner wall of the cavity 1a of the housing 1 cooperate to form the sound outlet channel 21, which is not limited herein. Of course, in other embodiments, the housing 1 is provided with the sound outlet 1121, and the sound guide 2 is disposed around the sound outlet 1121, so that the sound guide cavity is communicated with the sound outlet 1121 and encloses to form the sound outlet channel 21.

It is understood that the housing 1 may be a separate structure or an integrated structure, and is not limited herein. The sound production monomer 4 is including the vibrating diaphragm that is used for the vibration sound production, and sound production monomer 4 is equipped with the spacing butt of the annular brace table 31 of one side and the formation of metal insert 3 of vibrating diaphragm to with hold the inner wall of chamber 1a and lead sound spare 2 sealed fixed, thereby make sound production monomer 4, metal insert 3 and hold the inner wall of chamber 1a and enclose and close the preceding sound chamber 51 that forms intercommunication sound channel 21, sound production monomer 4 and casing 1's inner wall enclose into inclosed back sound chamber 52 jointly. Optionally, the housing 1 is made of a metal material or a plastic material, which is not limited herein.

In this embodiment, the metal insert 3 and the sound guide 2 cooperate to separate the receiving cavity 1a of the housing 1 into two spaces, wherein one space is communicated with the sound outlet channel 21, the other space is spaced from the sound outlet channel 21, the sound generating unit 4 is supported and limited on the supporting platform 31 formed by the metal insert 3, and the two spaces are completely isolated to form a front sound cavity 51 communicated with the sound outlet channel 21 and a rear sound cavity 52 spaced from the sound outlet channel 21.

Alternatively, the metal insert 3 is made of a metal material. The fixed sounding monomer 4 is supported and fixed by the metal insert 3 made of metal materials, the structural firmness of the metal materials is high, and therefore the metal insert 3 can be made of thin steel sheets, the volume of the front sound cavity 51 and the volume of the rear sound cavity 52 occupied by the metal insert 3 are effectively reduced, the volumes of the front sound cavity 51 and the rear sound cavity 52 are guaranteed, and the low-frequency acoustic performance of the sounding device 100 is improved. Simultaneously, metal insert 3 can not take place to shrink or the deformation problem at the in-process of moulding plastics, and the annular brace table 31 that also metal insert 3 formed is the plane setting to conveniently carry out the rubber coating at brace table 31, make on sound production monomer 4 is fixed in metal insert 3's brace table 31 through the rubber coating, can promote the sealing performance between sound production monomer 4 and the annular brace table 31 from this, and then can effectively improve sound production device 100's water-proof effects.

According to the sounding device 100, the metal insert 3 is arranged, so that the periphery of the metal insert 3 is connected with the inner wall of the containing cavity 1a of the shell 1 and the sound guide 2, the metal insert 3 is matched with the inner wall of the containing cavity 1a and the sound guide 2 to form the annular support table 31, the annular support table 31 is used for supporting and fixing the sounding monomer 4, the support table 31 is convenient to glue, the sounding monomer 4 is supported on the support table and is in sealing connection through the glue, and the sounding monomer 4, the metal insert 3 and the inner wall of the containing cavity 1a are surrounded to form the front sound cavity 51 communicated with the sound outlet channel 21, so that the waterproof effect of the sounding device 100 can be improved; meanwhile, by arranging the metal insert 3, the step structure is prevented from deforming due to shrinkage in the injection molding process to influence the gluing uniformity, the heights of the front sound cavity 51 and the sound outlet channel 21 are increased, the smoothness of the airflow of the front sound cavity 51 is facilitated, and the acoustic performance of the sound production device 100 is improved.

It can be understood that the casing 1 may be made of a metal material, and the casing 1 may be made of a thinner steel sheet, so that the casing 1 may be designed to be thinner, thereby greatly increasing the volume of the cavity in the casing 1, effectively increasing the volumes of the front sound cavity 51 and the rear sound cavity 52 enclosed by the sound generating unit 4 and the casing 1, and further improving the acoustic performance, especially the low-frequency acoustic performance, of the sound generating device 100. In the present embodiment, the sounding unit 4 is fixed to the metal insert 3, so that heat dissipation can be achieved through the metal insert 3 and the housing 1 made of metal material, and the heat dissipation performance of the sounding device 100 is improved.

In an embodiment, the inner wall of the accommodating cavity 1a is convexly provided with a limiting rib 113, the limiting rib 113 is connected with the outer peripheral wall of the sound guide member 2 to form a limiting groove 1131 communicated with the sound outlet channel 21 in a surrounding manner, the periphery of the metal insert 3 is respectively connected with the limiting rib 113 and the sound guide member 2 to form a supporting table 31, and the sound generating unit 4 is arranged in the limiting groove 1131 and is in gluing sealing connection with the metal insert 3 to form a front sound cavity 51 communicated with the sound outlet channel 21 in a surrounding manner of the sound generating unit 4 and the inner wall of the limiting groove 1131.

In this embodiment, through setting up spacing muscle 113, utilize spacing muscle 113 and lead the cooperation of sound piece 2 and form spacing groove 1131 to utilize spacing groove 1131 to realize spacing installation to sound production monomer 4. It can be understood that spacing muscle 113 is connected with leading 2 periphery walls of sound spare, also is that spacing muscle 113 corresponds and leads sound spare 2 and be equipped with and let a mouthful, leads sound spare 2 and is located spacing muscle 113 the mouth of stepping down for let the relative lateral wall that a mouthful links to each other with the periphery wall of leading sound spare 2 respectively. At this moment, metal insert 3's periphery and spacing muscle 113 and sound guide 2 are connected, make metal insert 3 and spacing muscle 113 and sound guide 2 cooperate and form annular brace table 31, so spacing in spacing groove 1131 at sound production monomer 4, and be connected with the annular brace table 31 that metal insert 3 formed, make sound production monomer 4 and spacing groove 1131's inner wall enclose to close and form the preceding sound chamber 51 that feeds through out sound passageway 21, sound production monomer 4, spacing muscle 113, sound guide 2 and the inner wall that holds chamber 1a enclose and close and form back sound chamber 52, so can make sound production monomer 4 periphery pass through rubber coating and spacing muscle 113 seal fixation, thereby further improve sealed water-proof effects.

Optionally, the limiting rib 113 is connected with the inner wall of the cavity 1a by gluing or laser welding. Of course, in other embodiments, the limiting rib 113 may also be integrally formed in the cavity 1a of the housing 1 by injection molding, which is not limited herein.

As shown in fig. 2 and fig. 9, the casing 1 is convexly located to spacing muscle 113, and the both ends of spacing muscle 113 are connected with the periphery wall of leading sound piece 2 respectively, form the spacing groove 1131 that communicates out the sound passageway 21 in order to enclose, so can conveniently utilize spacing groove 1131 to realize spacing installation to sound production monomer 4, sound production monomer 4's periphery and spacing muscle 113 and partial sound piece 2 of leading are connected, make sound production monomer 4, spacing muscle 113, lead sound piece 2 and casing 1 enclose to close and form preceding sound chamber 51.

Alternatively, the periphery of the sound-emitting unit 4, the limiting rib 113 and the sound guide 2 may be fixed by gluing or welding. Of course, in other embodiments, the periphery of the casing of the sound generating unit 4, the limiting rib 113 and the sound guiding element 2 may also adopt a detachable connection manner such as a snap fastening, a plug fitting, a screw connection or a pin connection, or adopt a foam compression seal or other effective connection manner, which is not limited herein.

In an embodiment, a step 1132 is provided on a side of the limiting rib 113 facing the limiting groove 1131, and the metal insert 3 is connected to the step 1132.

It can be understood, as shown in fig. 4 to 7, through being formed with step 1132 on spacing muscle 113 for step 1132 and spacing groove 1131 diapire interval, thereby utilize step 1132 to support metal insert 3 fixed, improve metal insert 3's installation stability, thereby further improve the installation stability of sound production monomer 4.

In this embodiment, the step 1132 may be an integral structure disposed around the inner wall of the limiting rib 113 and connected to a side of the limiting rib 113 facing the limiting groove 1131. Of course, in other embodiments, the step 1132 may also include a plurality of spaced-apart bosses or rib structures, etc., which are not limited herein. In this embodiment, step 1132 and the cooperation of spacing muscle 113 form the stair structure, so can make things convenient for step 1132 to realize supporting and fixing except the part of being connected with sound guide 2 metal insert 3 to further improve the installation stability of sound production monomer 4.

In one embodiment, the end of the limiting rib 113 away from the bottom wall of the limiting groove 1131 is provided with a guiding surface 1134, and the guiding surface 1134 is inclined in the vertical direction toward the inside of the limiting groove 1131. For example, the sounding unit 4 is installed into the limiting groove 1131 in the top-down direction, and the guide surface 1134 extends obliquely downward in the top-down direction toward the direction close to the limiting groove 1131.

It can be understood, as shown in fig. 2, 5, 9, through set up spigot surface 1134 on spacing muscle 113 for spigot surface 1134 sets up towards the inside direction slope of spacing groove 1131, and spigot surface 1134 plays the guide effect to the installation of sound production monomer 4, thereby conveniently installs sound production monomer 4 in spacing groove 1131, avoids the edge fish tail sound production monomer 4 of spacing muscle 113 tip simultaneously.

In an embodiment, a boss 22 is convexly provided at one end of the sound guide 2 adjacent to the sound generating unit 4 and facing away from the sound outlet channel 21, and the metal insert 3 is provided with a connecting portion 32 sandwiched between the boss 22 and the sound generating unit 4.

As shown in fig. 4 to 7, the boss 22 is convexly provided towards one side deviating from the sound channel 21 at one end of the sound guide 2 adjacent to the sound generating unit 4, so as to be arranged, thereby utilizing the boss 22 to realize the limit butt joint on the sound generating unit 4, and simultaneously facilitating the boss 22 to be fixed with the periphery of the sound generating unit 4 through gluing, and improving the sealing and waterproof performance.

In this embodiment, as shown in fig. 5, boss 22 is equipped with spigot surface 1134, and spigot surface 1134 sets up along the inside direction slope of orientation spacing groove 1131, and usable spigot surface 1134 plays the guide effect to the installation of sound production monomer 4 like this to conveniently install sound production monomer 4 in spacing groove 1131, avoid the edge fish tail sound production monomer 4 of boss 22 tip simultaneously. It is understood that the boss 22 may be formed by extending the position-limiting rib 113, and optionally, the boss 22 and the position-limiting rib 113 are an integral injection molding structure.

It can be understood that, in order to avoid the boss 22 of the sound guide 2 from generating a pit due to the problem of shrinkage when being formed by injection molding, the gluing effect is affected, as shown in fig. 8, the metal insert 3 is provided with the connecting portion 32, and the connecting portion 32 is clamped between the boss 22 and the sound generating unit 4, so that the connecting portion 32 of the metal insert 3 can be used for providing the gluing effect, and the sealing and waterproof performance of the connection of the sound generating unit 4 is improved. In the present embodiment, the metal insert 3 is provided with a connecting portion 32 protruding from a side corresponding to the sound guide 2, and the connecting portion 32 is perpendicular to the metal insert 3.

In one embodiment, the metal insert 3 is an integrally formed ring-shaped structure. It will be appreciated that the annular configuration of the metal insert 3 conforms to the contour of the sound-generating unit 4. In order to facilitate the connection of the metal insert 3 with the inner wall of the cavity 1a and the sound guide 2 to form the support platform 31, a certain width is provided between the inner side and the outer side of the ring shape of the metal insert 3. Optionally, the metal insert 3 is in the form of a rectangular ring.

In another embodiment, the metal insert 3 comprises a plurality of connecting segments that are joined end to form a ring. It will be appreciated that each connecting section may be in the form of an elongate sheet or plate-like structure. Optionally, the metal insert 3 is a rectangular ring, and at this time, the metal insert 3 includes four connecting sections, and the four connecting sections are connected end to form a rectangular ring structure, which is not limited herein. Of course, the metal insert 3 may also include two connecting sections, and both the two connecting sections are U-shaped, so that the two connecting sections are connected end to form a rectangular ring structure.

Optionally, the metal insert 3 is a metal steel sheet, that is, the metal steel sheet is an annular steel sheet or an annular structure formed by connecting multiple sections of steel sheets, and is not limited herein. In the embodiment, the thickness of the metal insert 3 is 0.1-0.2 mm. Alternatively, the thickness of the metal insert 3 is 0.1mm, 0.15mm, 0.2mm, etc., which is not limited herein.

In one embodiment, the distance between the sounding unit 4 and the bottom wall of the limiting groove 1131 gradually increases along the transmission direction of sound. It can be understood that, as shown in fig. 7, the distance between the sounding unit 4 and the bottom wall of the limiting groove 1131 is gradually increased along the transmission direction of sound, that is, the front sound cavity 51 is set to be a flaring structure facing the sound outlet channel 21, so that the front sound cavity 51 is effectively increased, the circulation resistance of the air flow is reduced, and the circulation performance of the air flow in the front sound cavity 51 is improved.

It is to be understood that, as shown in fig. 7, the sound-emitting unit 4 may be provided in an inclined configuration such that the distance between the sound-emitting unit 4 and the bottom wall of the stopper groove 1131 gradually decreases from the end close to the sound-emitting channel 21 toward the end away from the sound-emitting channel 21. In this embodiment, the accessible sets up step 1132 to the inclined structure, also defines the distance of step 1132 to spacing groove 1131 bottom wall as the thickness of step 1132 for the thickness of step 1132 from being close to leading sound 2 to keeping away from leading sound 2 and diminishing gradually, so when the spacing butt of sound generating unit 4 and step 1132, sound generating unit 4 is the slope setting.

Of course, in other embodiments, the bottom wall of the limiting groove 1131 may be provided with an inclined structure, so that the distance between the sound-emitting unit 4 and the bottom wall of the limiting groove 1131 gradually decreases from the end close to the sound-emitting channel 21 to the end far from the sound-emitting channel 21, which is not limited herein.

Optionally, when the sounding unit 4 is obliquely arranged, the inclination angle of the sounding unit 4 to the horizontal plane is 2 ° to 5 °, which is not limited herein.

In one embodiment, the bottom wall of the limiting groove 1131 is recessed with a groove 1133, and the groove 1133 is disposed adjacent to the sound guiding member 2. It can be understood that, as shown in fig. 6, by providing the groove 1133 on the bottom wall of the limiting groove 1131, so that the groove 1133 is disposed adjacent to the sound guide 2, the size of the front sound cavity 51 adjacent to the sound outlet channel 21 is effectively increased, so that the resistance when the air flow enters the sound outlet channel 21 can be reduced, and the air flow circulation can be effectively increased.

In an embodiment, at least a portion of the housing 1 corresponding to the limiting groove 1131 is a metal steel sheet, and the metal steel sheet and the housing 1 are integrally formed by injection molding.

It can be understood that, by replacing the portion of the casing 1 corresponding to the limiting groove 1131 with a metal steel sheet, the thickness of the portion of the casing 1 corresponding to the limiting groove 1131 can be effectively reduced, and thus the volume of the front sound cavity 51 can be effectively enlarged, thereby improving the acoustic performance of the sound production device 100.

In this embodiment, the housing 1 is provided with a notch corresponding to the limiting groove 1131, and the housing 1 further includes a metal steel sheet, and the metal steel sheet is disposed at the notch of the housing 1 to cover the notch, so that the metal steel sheet forms the bottom wall of the limiting groove 1131. Alternatively, the metal steel sheet and the housing 1 are in an integral injection molding structure. It is understood that the housing 1 may be made of plastic or formed by injection molding of plastic and metal, and the like, and is not limited herein.

In an embodiment, the housing 1 includes a first housing 11 and a second housing 12, the first housing 11 includes a bottom plate 111 and a surrounding plate 112 disposed on a periphery of the bottom plate 111, the surrounding plate 112 and the bottom plate 111 surround to form an accommodating groove 11a, the sound outlet 1121 is disposed on the surrounding plate 112, the sound guide 2 is connected to the surrounding plate 112 and the bottom plate 111 and surrounds to form a sound outlet channel 21 with the surrounding plate 112 and the bottom plate 111, the bottom plate 111 is convexly provided with a limiting rib 113, the limiting rib 113 is connected to an outer wall of the sound guide 2 and the surrounding plate 112 to form a limiting groove 1131, a periphery of the metal insert 3 is connected to the surrounding plate 112, the limiting rib 113 and the sound guide 2, the second housing 12 covers a notch of the accommodating groove 11a and is connected to the surrounding plate 112, so that the second housing 12, the surrounding plate 112 and the bottom plate 111 surround to form an accommodating cavity 1 a.

In this embodiment, as shown in fig. 2 and fig. 4 to fig. 9, the housing 1 is configured as a two-part structure of the first housing 11 and the second housing 12, so that the first housing 11 and the second housing 12 can be connected into an integral structure by adopting a detachable connection manner such as a snap connection, a plug-in fit, a screw connection or a pin connection, thereby facilitating the disassembly and assembly or replacement of the sound generating unit 4.

It is understood that the bottom plate 111 and the enclosing plate 112 of the first housing 11 may be an integral structure, such that the enclosing plate 112 and the bottom plate 111 enclose the receiving groove 11 a. In order to facilitate the side sound emission of the sound emitting device 100, the sound outlet 1121 is opened in the enclosure 112, and the sound guide 2 is connected to the enclosure 112 and the bottom plate 111, and encloses with the enclosure 112 and the bottom plate 111 to form the sound emitting channel 21.

In this embodiment, the bottom plate 111 is protruded with a limiting rib 113, and the limiting rib 113 is connected with the outer wall of the sound guiding element 2 and the surrounding plate 112 to form a limiting groove 1131. As shown in fig. 2 and 9, two opposite spacing ribs 113 are convexly disposed on the bottom plate 111, and two ends of the two spacing ribs 113 are respectively connected to the outer wall of the sound guide 2 and the surrounding plate 112, so that the two spacing ribs 113 and the outer wall of the sound guide 2 and the surrounding plate 112 surround to form a spacing groove 1131. At this time, the step 1132 may be disposed on one side of the two limiting ribs 113 facing the limiting groove 1131, and the step 1132 may also be disposed on one side of the two limiting ribs 113 and the one side of the surrounding plate facing the limiting groove 1131 and connected to form a whole, and at this time, the sound guide member 2 is only connected to the metal insert 3 and is not provided with the step 1132.

It can be understood that the second housing 12 covers the notch of the receiving groove 11a and is connected to the enclosure plate 112, so that the second housing 12, the enclosure plate 112 and the bottom plate 111 enclose the receiving cavity 1 a. Optionally, the bottom plate 111, the surrounding plate 112, the limiting rib 113 and the sound guide 2 are integrally formed, so that the structural strength of the first housing 11 can be improved, and the processing steps of the first housing 11 can be simplified.

In this embodiment, the metal insert 3, the surrounding plate 112, the limiting rib 113 and the sound guide 2 may be formed by injection molding, so that the connection stability is improved and the processing steps are simplified.

In an embodiment, the second housing 12 is provided with a position-avoiding hole 121 penetrating along the thickness direction of the sound-generating unit 4, and a side of the sound-generating unit 4 opposite to the metal insert 3 is located in the position-avoiding hole 121. As shown in fig. 2 and 3 to 8, the avoidance hole 121 is formed in the second casing 12, that is, the avoidance hole 121 penetrates through the second casing 12, so that a part of the sound generating unit 4 is exposed outside the casing 1, and thus the heat dissipation effect of the sound generating unit 4 can be effectively improved.

In an embodiment, the bottom plate 111 further has a through hole 1111 communicating with the receiving groove 11a, and the sounding device 100 further includes a damping member 6 covering the through hole 1111. As shown in fig. 1, 2, and 9, the through-holes 1111 are provided in the bottom plate 111 of the first casing 11, and the sound absorbing material is filled in the through-holes 1111. Meanwhile, by providing the damper 6, the through hole 1111 can be used as a filling hole of the sound absorbing material and a damper hole of the sound generating device 100 at the same time.

In this embodiment, the sound generating unit 4 further includes a conductive member 7 for connecting the sound generating unit 4 with an external electrical signal. As shown in fig. 1, 2 and 3, the conductive component 7 includes a conductive component body located in the cavity 1a, a connecting arm extending towards the direction of the sounding monomer 4 and fixedly electrically connected with the sounding monomer 4 and an extending arm extending from the conductive component body towards the direction far away from the sounding monomer 4 and penetrating through the housing of the sounding monomer 4. As can be understood, the extension arm penetrates through the shell 1, the structure is convenient to assemble, and the position penetrating through the shell 1 can be used as assembling positioning in advance, so that the assembling efficiency is improved.

According to the sound production device 100, the metal insert 3 is embedded into the step 1132 of the limiting rib 113 and one end of the sound guide 2, which is far away from the sound outlet 1121, in the first shell 11 through an injection molding process to form the annular supporting table 31, the supporting table 31 is coated with the sealant, the sound production unit 4 is assembled in the limiting groove 1131, and the periphery of the sound production unit 4 is coated with the fixing glue, so that the periphery of the sound production unit 4 is hermetically connected with the limiting rib 113 and the boss 22 of the sound guide 2, and one side of the sound production unit 4, which is provided with the vibrating diaphragm, is connected and sealed with the sealant on the supporting table 31, thereby realizing double sealing and fixing, and improving the sealing and waterproof effects. Then, the conductive member 7 is welded to the sounding unit 4, the second housing 12 is ultrasonically welded, the connection portion between the conductive member 7 and the first and

second housings

11 and 12 is coated with an outlet adhesive, and finally the damping member 6 is adhered to the through hole 1111 of the first housing 11, so as to complete the assembly of the sounding device 100.

The utility model also provides an electronic device, which comprises a device body and the sounding device 100, wherein the sounding device 100 is arranged on the device body. 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 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 device, comprising:

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

2. The sound-generating device according to claim 1, wherein a limiting rib is protruded from an inner wall of the cavity, the limiting rib is connected to an outer peripheral wall of the sound-guiding member so as to form a limiting groove communicated with the sound-generating channel, a periphery of the metal insert is connected to the limiting rib and the sound-guiding member respectively to form the supporting platform, and the sound-generating unit is disposed in the limiting groove and is connected to the metal insert in a gluing and sealing manner.

3. The sound production device as claimed in claim 2, wherein the side of the limiting rib facing the limiting groove is provided with a step, and the metal insert is connected with the step.

4. The sound production device as claimed in claim 2, wherein the end of the limiting rib away from the bottom wall of the limiting groove is provided with a guide surface, and the guide surface is inclined in a direction towards the inside of the limiting groove along the vertical direction;

5. The sound-producing device according to claim 2, wherein the spacing between the sound-producing unit and the bottom wall of the limiting groove gradually increases in the direction of sound transmission;

6. The sounder device according to claim 2, wherein said housing comprises:

7. The sound-producing device according to claim 6, wherein the second housing is provided with a clearance hole penetrating along the thickness direction of the sound-producing unit, and one side of the sound-producing unit, which is back to the metal insert, is located in the clearance hole.

8. The sound production device of claim 6, wherein the base plate, the shroud, the spacing rib and the sound guide are of an integrally formed structure;

9. The sound production device of any one of claims 1-8, wherein the metal insert is an integrally formed ring-shaped structure; or the metal insert comprises a plurality of connecting sections which are connected end to form a ring shape, and the connecting sections are in a long strip shape and/or a U shape;

and/or the metal insert is a metal steel sheet;

and/or the thickness of the metal insert is 0.1-0.2 mm.

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.