CN215010697U

CN215010697U - Sound production device and electronic device

Info

Publication number: CN215010697U
Application number: CN202121004549.XU
Authority: CN
Inventors: 谭飞; 陈国强; 王景伟
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-12-03
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a sounding device and an electronic device, wherein the sounding device comprises a metal shell and a sounding monomer, an accommodating space is formed in the metal shell, the sounding monomer is accommodated in the accommodating space, and the sounding monomer is communicated with an external device through a circuit board; the metal shell comprises an upper shell and a lower shell covering the bottom of the upper shell, a fixing part is arranged in the upper shell, the fixing part and the upper shell are integrally formed, the sounding monomer is fixed on one side of the fixing part facing the lower shell, and the lower shell, the fixing part and the sounding monomer jointly enclose a rear sound cavity; the fixed part is from the epitheca towards the epitheca protrusion to sound chamber before one side that deviates from the inferior valve at the fixed part forms, and the side sound outlet of sound chamber and external before the intercommunication is seted up to one side of epitheca. The utility model discloses vocal free fixed is realized through integrated into one piece in the fixed part of epitheca to vocal device, and the fixed part need not to make alone, has reduced material cost, and need not to assemble between fixed part and the epitheca, has left out the assembly step, has reduced the cost of manufacture and the degree of difficulty.

Description

Sound production device and electronic device

Technical Field

The utility model relates to an electroacoustic technology field, in particular to sounder and electronic device.

Background

The existing sound production device, for example in the all-metal structural design of the loudspeaker box, needs to make a mounting alone in the loudspeaker box to fix the inner core structure in the loudspeaker box, and the material cost is increased by making the mounting alone, and the mounting made alone needs to be sealed and assembled with the loudspeaker box through gluing or welding process, so that the manufacturing cost is high, and the assembling process is difficult to ensure the reliability, and adverse phenomena such as air leakage and drop cracking may exist. The above problems cause a great obstacle to the popularization and application of metal speaker boxes, especially to the case of using speaker boxes with side sounding on mobile phones.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sounder and electron device aims at solving current speaker box and need make the mounting alone and fix its kernel structure and lead to the problem that material cost and cost of manufacture are high.

In order to achieve the above object, the present invention provides a sound-generating device, which includes a metal casing and a sound-generating unit, wherein an accommodating space is formed in the metal casing, the sound-generating unit is accommodated in the accommodating space, and the sound-generating unit is conducted with an external device through a circuit board; the metal shell comprises an upper shell and a lower shell covering the bottom of the upper shell, a fixing part is arranged in the upper shell, the fixing part and the upper shell are integrally formed, the sounding monomer is fixed on one side of the fixing part facing the lower shell, and the lower shell, the fixing part and the sounding monomer form a rear sound cavity together in a surrounding mode; the fixed part is from the epitheca towards the inferior valve protrusion, in order the fixed part deviates from sound chamber before one side of inferior valve forms, just the intercommunication is seted up to one side of epitheca sound chamber and external side sound outlet before.

Preferably, the sounding unit has a yoke and a vibration unit mounted on the yoke; the fixing part is annular, the outer edge of the fixing part is connected with the upper shell, and the inner edge of the fixing part forms a sound passing hole corresponding to the vibration unit.

Preferably, the fixing part includes a fixing frame and an inclined plate, the fixing frame is formed with the sound passing hole, one side of the inclined plate is connected with the fixing frame, the other side of the inclined plate is connected with the edge of the side sound outlet on the upper case, and the inclined plate inclines toward the lower case along a direction close to the side sound outlet.

Preferably, the upper casing includes a top frame and a plurality of the side casing walls, the plurality of the side casing walls are sequentially connected end to end and surround the periphery of the top frame, one of the side casing walls is provided with the side sound outlet, and the fixing portion protrudes from the top frame toward the lower casing.

Preferably, the sound production device further comprises a metal front cover, the metal front cover is arranged on one side, away from the lower casing, of the top frame, and the metal front cover and the fixing part jointly enclose the front sound cavity.

Preferably, the top frame deviates from one side of inferior valve forms the installation step, the installation step is followed the periphery setting of fixed part and with the fixed part is connected, the installation step certainly the top frame orientation the inferior valve is protruding, just the protrusion height of installation step is less than the protrusion height of fixed part, the metal protecgulum is installed on the installation step.

Preferably, the sound production device further comprises a first sealing ring arranged outside the upper shell, the first sealing ring is arranged around the periphery of the side sound outlet along the edge of the side sound outlet, and the first sealing ring is connected with the side shell wall and the metal front cover.

Preferably, one end of the metal front cover, which is close to the side sound outlet, is bent in a direction away from the lower shell to form a bent plate, and the first sealing ring is connected with the bent plate.

Preferably, an installation step is formed on one side of the top frame, which is far away from the lower shell, the installation step is arranged along the periphery of the fixing part and is connected with the fixing part, the installation step protrudes from the top frame towards the lower shell, and the protruding height of the installation step is smaller than that of the fixing part;

the front sound cavity is an open front sound cavity, the sound production device further comprises a second sealing ring arranged outside the upper shell, the second sealing ring is arranged on the mounting step and surrounds the periphery of the side sound outlet, and the second sealing ring is connected with the side shell wall.

The utility model discloses still provide an electron device, electron device include the shell and accept in as above arbitrary in the shell sound production device.

The technical scheme of the utility model, the free fixed of sound production is realized through integrated into one piece in the fixed part of epitheca to the sound production device, the fixed part need not to make alone, the material cost has been reduced, and, fixed part integrated into one piece need not to assemble in the epitheca, between fixed part and the epitheca, assembly step has been left out, the cost of manufacture and the degree of difficulty have been reduced, structural reliability has been improved, and, fixed part integrated into one piece has still left out the fit-up gap between fixed part and the epitheca in the epitheca, there is not gas leakage or fall unfavorable phenomena such as fracture, the product yield and quality have been improved. In addition, the fixing part is arranged in the upper shell, so that the overall height of the sounding device cannot be increased, and the miniaturization design is facilitated.

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 an assembly schematic view of a sound 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 a schematic cross-sectional view of a sound generating device according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the upper case at a viewing angle in the sound generating device according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the upper case at another viewing angle in the sound production device according to an embodiment of the present invention;

fig. 6 is an assembly view of a sound device according to another embodiment of the present invention;

fig. 7 is an exploded view of a sound generating device according to another 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, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications 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 indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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, 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 present invention is described in the directions of "up", "down", "front", "back", "left", "right", etc. with reference to the directions shown in fig. 1 and 3, and is only used to explain the relative positional relationship between the respective components in the postures shown in fig. 1 and 3, and if the specific posture is changed, the directional indication is correspondingly changed accordingly.

The utility model provides a sounding device.

As shown in fig. 1 to 7, the sound generating device 100 of the present embodiment includes a metal casing 10 and a sound generating unit 20, an accommodating space 13 is formed in the metal casing 10, the sound generating unit 20 is accommodated in the accommodating space 13, and the sound generating unit 20 is conducted with an external device through a circuit board 30 to realize signal conduction between the sound generating unit 20 and the external device; the metal shell 10 includes an upper shell 11 and a lower shell 12 covering the bottom of the upper shell 11, and in order to ensure the tightness of the metal shell 10, the upper shell 11 and the lower shell 12 can be hermetically connected by applying a sealant or by welding. The upper shell 11 is internally provided with a fixing part 14, the fixing part 14 and the upper shell 11 are integrally formed, the sounding monomer 20 is fixed on one side of the fixing part 14 facing the lower shell 12, and the lower shell 12, the fixing part 14 and the sounding monomer 20 jointly enclose a rear sound cavity 15; the fixing portion 14 protrudes from the upper case 11 toward the lower case 12 to form a front sound cavity 16 on a side of the fixing portion 14 away from the lower case 12, and a side sound outlet 111 communicating the front sound cavity 16 with the outside is opened on one side of the upper case 11.

In this embodiment, the sound generating device 100 adopts the metal casing 10, which has the advantages of good heat dissipation performance and enlarged volume of the sound cavity. The sound generating device 100 of the present embodiment is described by taking a speaker Box (SPK Box) as an example, where the sound generating unit 20 of the speaker Box is a speaker unit, and the speaker unit is a core structure of the speaker Box. The fixing portion 14 of the sound device 100 of the present embodiment is integrally formed with the upper housing 11, and can be fixed to the sound generating unit 20 by applying a sealant or welding, so that the sound generating unit 20 as the core structure of the sound device 100 can be fixed to the metal housing 10 by the fixing portion 14. The fixing portion 14 protrudes from the upper case 11, that is, the fixing portion 14 protrudes from the upper case 11 into the accommodating space 13, so that a front sound cavity 16 is formed on the upper side of the fixing portion 14, the lower case 12, the fixing portion 14 and the sound generating unit 20 together enclose a rear sound cavity 15, the side sound outlet 111 is opened on one side of the upper case 11, and the front sound cavity 16 is communicated with the outside through the side sound outlet 111, so that the sound generating device 100 can generate sound at a side position, and the sound generating device can be applied to a device such as a mobile phone, which needs to use sound at a side position.

The sound production device 100 of the present embodiment realizes the fixation of the sound production monomer 20 through the integrally formed fixing portion 14 of the upper case 11, the fixing portion 14 does not need to be manufactured separately, the material cost is reduced, and the integrally formed fixing portion 14 is formed in the upper case 11, the fixing portion 14 and the upper case 11 do not need to be assembled, the assembling step is omitted, the manufacturing cost and the difficulty are reduced, the structural reliability is improved, and the integrally formed fixing portion 14 also omits the assembling gap between the fixing portion 14 and the upper case 11 in the upper case 11, no gas leakage or bad phenomena such as falling cracking exist, and the product yield and the quality are improved. In addition, the fixing portion 14 is disposed in the upper case 11, so that the overall height of the sound generating device 100 is not increased, which is advantageous for realizing a compact design.

In the present embodiment, the sounding unit 20 has a yoke 21 and a vibration unit 22 mounted on the yoke 21; the fixing portion 14 is annular, the outer edge of the fixing portion 14 is connected to the upper case 11, and the inner edge of the fixing portion 14 forms a sound passing hole 141 corresponding to the vibration unit 22. As shown in fig. 1 to 3, the vibration unit 22 is installed above the yoke 21, and the vibration unit 22 may vibrate up and down with respect to the yoke 21 to generate sound waves. The fixing portion 14 has a sound passing hole 141, and the sound passing hole 141 is disposed opposite to the vibration unit 22 so as to transmit the sound wave generated by the up-and-down vibration of the vibration unit 22 through the sound passing hole 141. It should be noted that the vibration unit 22 includes a diaphragm and a connecting portion located at the periphery of the diaphragm, wherein the connecting portion can be fixed on the fixing portion 14, and the diaphragm can vibrate up and down at the sound passing hole 141 to generate sound waves.

As shown in fig. 2 to 7, the fixing portion 14 of the present embodiment includes a fixing frame 142 and an inclined plate 143, the fixing frame 142 is formed with the sound transmission hole 141, one side of the inclined plate 143 is connected to the fixing frame 142, the other side of the inclined plate 143 is connected to the edge of the upper sound outlet 111 of the upper case 11, and the inclined plate 143 is inclined toward the lower case 12 in a direction close to the side sound outlet 111. Specifically, the sound-emitting unit 20 is fixed to the fixing frame 142, and the sound through holes 141 of the fixing frame 142 allow sound waves generated by the vertical vibration of the vibration unit 22 to be transmitted through the sound through holes 141. The side sound outlet 111 is arranged on the right side shell wall 113 of the upper shell 11, the left side of the inclined plate 143 is connected with the fixed frame 142, the right side of the inclined plate 143 is connected with the edge of the side sound outlet 111, and the inclined plate 143 is obliquely arranged downwards from left to right, so that the space of the front sound cavity 16 corresponding to the inclined plate 143 is gradually enlarged towards the direction close to the side sound outlet 111, and sound emission is facilitated.

In this embodiment, the upper case 11 includes a top frame 112 and a plurality of side walls 113, the plurality of side walls 113 are sequentially connected end to end and are disposed around the periphery of the top frame 112, one of the side walls 113 is provided with a side sound outlet 111, and the fixing portion 14 protrudes from the top frame 112 toward the lower case 12. The top frame 112 is located at the top, a plurality of side walls 113 are disposed below the top frame 112 along the outer circumference of the top frame 112 to form a receiving space 13 with the top frame 112, the fixing portion 14 protrudes downward from the top frame 112, so that the upper side of the top frame 112 is a groove structure and forms a front sound cavity 16, and the sound generating unit 20 is fixed at the lower side of the top frame 112. The sound generating device 100 of the present embodiment is a rectangular parallelepiped structure, the upper housing 11 includes four side housing walls 113, the four side housing walls 113 are respectively connected to the front, rear, left, and right directions of the top frame 112, wherein a side sound outlet 111 is formed at a position of one of the side housing walls 113, for example, a position above the right side housing wall 113, so as to realize sound generation at the side position of the sound generating device 100.

In one embodiment, the sound generating device 100 further includes a metal front cover 40, the metal front cover 40 covers a side of the top frame 112 facing away from the lower casing 12, and the metal front cover 40 and the fixing portion 14 together form the front sound cavity 16. As shown in fig. 1 to 3, the metal front cover 40 is disposed on the upper side of the top frame 112, the metal front cover 40 and the fixing portion 14 jointly enclose the front sound cavity 16, and it can be understood that the front sound cavity 16 enclosed by the metal front cover 40 and the fixing portion 14 is a non-open front sound cavity 16, that is, the front sound cavity 16 is a closed front sound cavity 16 except for communicating with the outside through the side sound outlet 111.

Further, a mounting step 1121 is formed at a side of the top frame 112 away from the lower case 12, the mounting step 1121 is disposed along an outer circumference of the fixing portion 14 and connected to the fixing portion 14, the mounting step 1121 protrudes from the top frame 112 toward the lower case 12, a protruding height of the mounting step 1121 is smaller than that of the fixing portion 14, and the metal front cover 40 is mounted on the mounting step 1121.

Specifically, the upper side of the top frame 112 forms a mounting step 1121, the mounting step 1121 is provided in a U-shape around the periphery of the fixing portion 14 excluding the inclined plate 143, and the mounting step 1121 is connected to the fixing portion 14. The mounting step 1121 protrudes downward from the top frame 112, and the protruding height of the mounting step 1121 is less than that of the fixing portion 14, so that a height difference is provided between the mounting step 1121 and the top frame 112 of the fixing portion 14 to form the front sound cavity 16, and the mounting step 1121 protrudes downward from the top frame 112, so that a mounting space for mounting the metal front cover 40 can be formed at the upper side thereof, and after the metal front cover 40 is mounted on the mounting step 1121, the upper surface of the metal front cover 40 can be flush with the upper surface of the top frame 112, so that the external dimension of the sound device 100 is not affected, and the miniaturization design of the sound device 100 is facilitated. In order to ensure the tightness, the metal front cover 40 may be fixed to the mounting step 1121 by applying a sealant or welding.

Further, the sound device 100 further includes a first sealing ring 50 disposed outside the upper housing 11, the first sealing ring 50 is disposed around the periphery of the side sound outlet 111 along the edge of the side sound outlet 111, and the first sealing ring 50 is connected to the side housing wall 113 and the metal front cover 40. The first sealing ring 50 can be made of sealing foam or elastic soft rubber or soft silica gel, and the first sealing ring 50 can be adhered to the side casing wall 113 and the metal front cover 40. It can be understood that the sound-generating device 100 can be applied to electronic devices such as computers, mobile phones, sound boxes, and vehicle-mounted sound boxes applied to automobiles, and the electronic devices include a housing and the sound-generating device 100, the sound-generating device 100 is accommodated in the housing of the electronic device, the first sealing ring 50 is disposed outside the upper housing 11, the first sealing ring 50 surrounds the periphery of the side sound outlet 111, and after the sound-generating device 100 is assembled in the housing, the housing and the sound-generating device 100 are sealed by the first sealing ring 50, so that the waterproof performance of the electronic device is improved, and sound leakage is prevented.

In order to facilitate the installation of the metal front cover 40, one end of the metal front cover 40 near the side sound outlet 111 is bent in a direction away from the lower case 12 to form a bent plate 41, and the first sealing ring 50 is connected to the bent plate 41. As shown in fig. 2 and 3, the right end of the metal front cover 40 near the side sound outlet 111 is bent upward to form a bent plate 41, the bent plate 41 provides a mounting position for the first sealing ring 50, and the upper portion of the first sealing ring 50 can be adhered to the bent plate 41.

As shown in fig. 6 and 7, in another embodiment, a side of the top frame 112 facing away from the lower shell 12 is formed with a mounting step 1121, the mounting step 1121 is disposed along the periphery of the fixing portion 14 and is connected with the fixing portion 14, the mounting step 1121 protrudes from the top frame 112 toward the lower shell 12, and the protruding height of the mounting step 1121 is smaller than that of the fixing portion 14; the front sound cavity 16 is an open front sound cavity 16, the sound generating device 100 further includes a second sealing ring 60 disposed outside the upper housing 11, the second sealing ring 60 is mounted on the mounting step 1121 and surrounds the periphery of the side sound outlet 111, and the second sealing ring 60 is connected to the side housing wall 113.

Specifically, the upper side of the top frame 112 forms a mounting step 1121, the mounting step 1121 is provided in a U-shape around the periphery of the fixing portion 14 excluding the inclined plate 143, and the mounting step 1121 is connected to the fixing portion 14. The mounting step 1121 is projected downward from the top frame 112, and the projection height of the mounting step 1121 is smaller than that of the fixing portion 14 so that there is a height difference between the mounting step 1121 and the top frame 112 of the fixing portion 14 to form the front sound chamber 16, and the mounting step 1121 is projected downward from the top frame 112, and a mounting space for mounting the second sealing ring 60 can be formed at the upper side thereof, and the second sealing ring 60 can be mounted on the mounting step 1121. The second sealing ring 60 may be made of sealing foam or elastic soft rubber or soft silica gel, and the second sealing ring 60 may be bonded to the mounting step 1121 and the side casing wall 113.

In this embodiment, the design of the metal front cover 40 is eliminated and the front acoustic chamber 16 is an open front acoustic chamber 16. It can be understood that the sound-generating device 100 can be applied to electronic devices such as computers, mobile phones, sound boxes, and vehicle-mounted sound boxes applied to automobiles, where the electronic device includes a housing and the sound-generating device 100, the sound-generating device 100 is housed in the housing of the electronic device, the second sealing ring 60 is disposed outside the upper housing 11, the second sealing ring 60 is mounted on the mounting step 1121 and surrounds the periphery of the side sound outlet 111, and after the sound-generating device 100 is assembled in the housing, the housing and the sound-generating device 100 are sealed by the second sealing ring 60, so as to improve the waterproof performance of the electronic device and prevent sound leakage.

The utility model discloses sound production device 100 can need selectivity design metal protecgulum 40 or cancel metal protecgulum 40 according to the complete machine assembly, and the design is nimble, has expanded the utility model discloses sound production device 100's range of application improves sound production device 100's suitability and economic nature.

The present invention also provides an electronic device, which comprises a housing and the sound generating device 100 contained in the housing. The specific structure of the sound generating device 100 in the electronic device refers to the above embodiments, and since the electronic device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here. The electronic device can be applied to a terminal device, for example, a computer, a mobile phone, a sound box, a vehicle-mounted sound box applied to an automobile, and the like.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. A sounding device is characterized by comprising a metal shell and a sounding monomer, wherein an accommodating space is formed in the metal shell, the sounding monomer is accommodated in the accommodating space, and the sounding monomer is communicated with an external device through a circuit board; the metal shell comprises an upper shell and a lower shell covering the bottom of the upper shell, a fixing part is arranged in the upper shell, the fixing part and the upper shell are integrally formed, the sounding monomer is fixed on one side of the fixing part facing the lower shell, and the lower shell, the fixing part and the sounding monomer form a rear sound cavity together in a surrounding mode; the fixed part is from the epitheca towards the inferior valve protrusion, in order the fixed part deviates from sound chamber before one side of inferior valve forms, just the intercommunication is seted up to one side of epitheca sound chamber and external side sound outlet before.

2. The sound-producing device according to claim 1, wherein the sound-producing unit has a yoke and a vibration unit mounted on the yoke; the fixing part is annular, the outer edge of the fixing part is connected with the upper shell, and the inner edge of the fixing part forms a sound passing hole corresponding to the vibration unit.

3. The sound production device as claimed in claim 2, wherein the fixing portion includes a fixing frame formed with the sound transmission hole and an inclined plate, one side of which is connected to the fixing frame, the other side of which is connected to an edge of the side sound outlet on the upper case, and the inclined plate is inclined toward the lower case in a direction close to the side sound outlet.

4. The sound production device as claimed in claim 1, wherein the top housing comprises a top frame and a plurality of side housing walls sequentially connected end to end around the periphery of the top frame, wherein one of the side housing walls defines the side sound outlet, and the fixing portion projects from the top frame toward the lower housing.

5. The sound device of claim 4, further comprising a metal front cover disposed on a side of the top frame facing away from the bottom shell, wherein the metal front cover and the fixing portion together define the front sound cavity.

6. The sound production device of claim 5, wherein the top frame forms a mounting step on a side thereof facing away from the lower case, the mounting step being disposed along a periphery of the fixing portion and connected to the fixing portion, the mounting step protruding from the top frame toward the lower case, the mounting step having a protruding height smaller than that of the fixing portion, the metal front cover being mounted on the mounting step.

7. The sounder device according to claim 5, further comprising a first seal ring disposed outside the top housing, wherein the first seal ring is disposed around the periphery of the side sound outlet along the edge of the side sound outlet, and wherein the first seal ring is coupled to the side housing wall and the metal front cover.

8. The sound production device of claim 7, wherein an end of the metal front cover adjacent to the side sound outlet is bent away from the lower case to form a bent plate, and the first sealing ring is connected to the bent plate.

9. The sound production device of claim 4,

an installation step is formed on one side, away from the lower shell, of the top frame, the installation step is arranged along the periphery of the fixing part and connected with the fixing part, the installation step protrudes from the top frame towards the lower shell, and the protruding height of the installation step is smaller than that of the fixing part;

10. An electronic device comprising a housing and a sound-producing device according to any one of claims 1 to 9 housed within the housing.