CN112203185A

CN112203185A - Sound output structure and electronic equipment

Info

Publication number: CN112203185A
Application number: CN202011025498.9A
Authority: CN
Inventors: 李成; 甘育文
Original assignee: Xian Wingtech Electronic Technology Co Ltd
Current assignee: Xian Wingtech Electronic Technology Co Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-01-08

Abstract

The invention discloses a sound outlet structure and electronic equipment, wherein the sound outlet structure comprises a loudspeaker, a bracket, a front shell and a rear shell; the bracket is provided with a cavity and a sound outlet hole, and the loudspeaker is arranged in the cavity and divides the cavity into a first sound cavity and a second sound cavity; the rear shell is fixed on the front shell, the support is fixed between the front shell and the rear shell, a blocking wall positioned between the support and the rear shell is arranged on the front shell, a first through hole opposite to the sound outlet hole is formed in the blocking wall, a second through hole which is positioned outside the first through hole and opposite to the first through hole is formed in the rear shell, and the sound outlet hole, the first through hole and the second through hole form a sound outlet channel; a first dustproof net is arranged at the joint of the first through hole and the sound outlet hole, and the edge of the first dustproof net is clamped between the blocking wall and the bracket; the joint of the second through hole and the first through hole is provided with a second dustproof net, and the edge of the second dustproof net is clamped between the rear shell and the retaining wall. The invention can play a better role in blocking dust, water and other impurities through the two dust screens.

Description

Sound output structure and electronic equipment

Technical Field

The invention relates to the technical field of electronics, in particular to a sound output structure and electronic equipment.

Background

Loudspeaker can be installed usually to electronic equipment's inside, be used for transmitting audio signal for sound to electronic equipment outside, need set up the sound passageway on electronic equipment's casing usually and be used for the outside of transmitting the sound that loudspeaker sent to the casing, in order to prevent the dust, inside water enters into electronic equipment casing, need set up the dust screen in the sound passageway, be used for separation dust and water, because electronic equipment's shell structure is comparatively complicated, it is difficult to the effectual leakproofness of ensureing the sound passageway to set up the individual layer dust screen, thereby it is relatively poor to lead to the leakproofness of current electronic equipment sound passageway.

Disclosure of Invention

The invention aims to provide a sound output structure which has better sealing performance and can effectively prevent dust and water from entering the interior of electronic equipment.

The second purpose of the invention is to provide an electronic device.

In order to achieve the first purpose, the invention adopts the following technical scheme:

the sound outlet structure comprises a loudspeaker, a bracket, a front shell and a rear shell;

the support is provided with a closed cavity and a sound outlet hole, the loudspeaker is arranged in the cavity and divides the cavity into a first sound cavity and a second sound cavity, the sound outlet surface of the loudspeaker is arranged in the first sound cavity, and the sound outlet hole extends from the inner surface of the first sound cavity to the outer surface of the support;

the rear shell is fixed on the front shell, the support is fixed between the front shell and the rear shell, a blocking wall positioned between the support and the rear shell is arranged on the front shell, a first through hole which is opposite to the sound outlet hole is arranged on the blocking wall, a second through hole which is positioned outside the first through hole and is opposite to the first through hole is arranged on the rear shell, and the sound outlet hole, the first through hole and the second through hole form a sound outlet channel together;

a first dustproof net is arranged at the joint of the first through hole and the sound outlet hole, and the edge of the first dustproof net is clamped between the blocking wall and the bracket;

and a second dustproof net is arranged at the joint of the second through hole and the first through hole, and the edge of the second dustproof net is clamped between the rear shell and the retaining wall.

Preferably, the bracket comprises a lower bracket and an upper bracket fixed together.

Preferably, a groove is formed in the lower support, and the outer periphery of the horn is connected to the side wall of the groove.

Preferably, a convex rib is convexly arranged on the inner surface of the lower support, the groove is defined by the front side wall of the lower support and the convex rib, the inner side end of the sound outlet extends to the inner surface of the front side wall, a step surface is arranged on the inner side of the convex rib, one part of the edge of the horn is lapped on the step surface and is in closed fit with the step surface, and the other part of the edge of the horn abuts against the inner surface of the front side wall and is in closed fit with the front side wall.

Preferably, the first dust screen is bonded on the outer surface of the support, and an annular first sealing ring is further arranged between the edge of the first dust screen and the blocking wall.

Preferably, the outer surface of the bracket is provided with a first accommodating groove surrounding the periphery of the sound outlet hole, and the edge of the first dust screen is bonded to the bottom surface of the first accommodating groove.

Preferably, the second dustproof net is bonded on the outer surface of the blocking wall, and an annular second sealing ring is further arranged between the edge of the second dustproof net and the rear shell.

Preferably, the outer surface of the blocking wall is provided with a second accommodating groove surrounding the periphery of the first through hole, and the second dustproof net is bonded to the bottom surface of the second accommodating groove.

In order to achieve the second purpose, the invention adopts the following technical scheme:

the electronic equipment comprises the sound emitting structure.

Compared with the prior art, the two dustproof nets are arranged in the sound outlet channel of the loudspeaker, so that the sound outlet channel is ensured to have better sealing performance, and the two dustproof nets can play a better role in blocking dust, water and other impurities, so that the dust, water and other impurities are effectively prevented from entering the electronic equipment through the sound outlet channel, devices in the electronic equipment are protected, and the service life of the electronic equipment is prolonged.

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 view of the present invention;

fig. 2 is an enlarged view at a in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Front shell	34	Front side wall
11	First through hole	40	Upper bracket
				12	Retaining wall	50	Horn type loudspeaker
13	The second accommodating groove	51	Sound output surface
				20	Rear shell	60	First dust screen
21	Second through hole	61	Foam cotton
				30	Lower support	62	First seal ring
31	Sound outlet hole	70	Second dust screen
				32	First holding tank	71	Foam cotton
33	Convex rib	72	Second seal ring
				331	Step 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.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one 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.

As shown in fig. 1 and 2, a sound emitting structure of the present invention is suitable for an electronic device, and specifically includes a speaker 50, a bracket, a front shell 10 and a rear shell 20, where the front shell 10 and the rear shell 20 are fixedly connected to form a housing of the electronic device, the bracket is internally of a hollow structure, a sealed cavity is formed inside the bracket, and meanwhile, a sound emitting hole 31 is formed in the bracket, the speaker 50 is disposed in the cavity of the bracket and divides the cavity of the bracket into a first sound cavity and a second sound cavity, a sound emitting surface 51 of the speaker 50 is disposed in the first sound cavity, and the sound emitting hole 31 extends from an inner surface of the first sound cavity to an outer surface of the bracket; in a preferred embodiment, the bracket comprises a lower bracket 30 and an upper bracket 40, wherein the upper bracket 40 is buckled on the lower bracket 30 and fixedly connected with the lower bracket 30, so that the upper bracket 40 and the lower bracket 30 enclose the cavity; the speaker 50 is mounted on the lower bracket 30 and is clearance-fitted to the bottom of the lower bracket 30 to form the above-mentioned first sound chamber, and the sound outlet hole 31 is provided on the lower bracket 30. Then, after the speaker 50, the lower bracket 30 and the upper bracket 40 are assembled into an integral assembly, the assembly is assembled between the child and the front shell 10 and the rear shell 20, namely the bracket is installed between the front shell 10 and the rear shell 20, the front side of the front shell 10 is provided with a baffle wall 12 arranged between the bracket and the rear shell 20, the baffle wall 12 is provided with a first through hole 11, the first through hole 11 is positioned at the outer side of the sound outlet 31 and is arranged opposite to the sound outlet 31, the rear shell 20 is provided with a second through hole 21 positioned at the outer side of the first through hole 11, and the second through hole 21 is arranged opposite to the first through hole 11, so that the sound outlet 31, the first through hole 11 and the second through hole 21 are communicated and form a sound outlet channel together; a first dust screen 60 is arranged at the joint of the first through hole 11 and the sound outlet hole 31, the edge of the first dust screen 60 is clamped between the blocking wall 12 and the outer surface of the bracket, and the edge of the first dust screen 60 is hermetically matched with the blocking wall 12 and the bracket; a second dust screen 70 is arranged at the joint of the second through hole 21 and the first through hole 11, and the edge of the second dust screen 70 is clamped between the blocking wall 12 and the rear shell 20, so that the edge of the second dust screen 70 is in close fit with the blocking wall 12 and the rear shell 20; through the structure, the sound outlet channel keeps better sealing performance at the joint of the first through hole 11 and the sound outlet hole 31 and the joint of the second through hole 21 and the first through hole 11, and the first dust screen 60 and the second dust screen 70 are respectively arranged at the same time.

It should be noted that the bracket of the present invention is not limited to the above-mentioned structure in which the upper bracket 40 and the lower bracket 30 are fixed to each other, and in other embodiments, the bracket may also be of other structures, for example, the bracket may be a one-piece structure provided that the horn 50 can be installed, or the bracket may be composed of a left bracket and a right bracket fixed to each other.

In a preferred embodiment, in order to position the speaker 50 during installation, the present invention provides a groove on the lower bracket 30, the shape and size of the groove are consistent with the shape and size of the speaker 50, during installation, the speaker 50 is inserted into the groove in an aligned manner, so as to position the speaker 50 precisely, and after installation, the outer periphery of the speaker 50 is connected to the side wall of the groove, and the outer periphery of the speaker 50 is tightly fitted with the groove, so as to divide the inner cavity of the bracket into a first sound cavity and a second sound cavity. Furthermore, the invention is provided with a convex rib 33 protruding from the inner surface of the lower bracket 30, the above-mentioned groove is enclosed by the convex rib 33 and the front side wall 34 of the lower bracket 30, the inner end of the sound outlet 31 extends to the inner surface of the front side wall 34, a step surface 331 is provided on the convex rib 33, when installing, the speaker 50 is embedded into the groove, and is supported at the edge of the sound outlet surface 51 of the speaker 50 by the step surface 331, wherein the front side surface of the speaker 50 abuts against the inner surface of the front side wall 34 and is in close fit with the inner surface of the front side wall 34, the sound outlet surface 51 of the speaker 50 is in close fit with the step surface, and the close fit can be realized by bonding.

In addition, the first dust screen 60 of the present invention is adhered and fixed on the outer surface of the bracket, specifically, fixed on the outer surface of the lower bracket 30, and a first sealing ring 62 is further disposed between the edge of the first dust screen 60 and the blocking wall 12, the first sealing ring 62 is in a ring shape to avoid the first through hole 11, and the blocking wall 12 and the lower bracket 30 squeeze the first sealing ring 62, so that the edge of the first dust screen 60 and the blocking wall 12 are in a sealing fit; further, a first receiving groove 32 may be formed on an outer surface of the holder, the first receiving groove 32 surrounds the periphery of the sound outlet 31, the first sealing ring 62 is received in the first receiving groove 32, and an edge of the first dust-proof net 60 is bonded to a bottom surface of the first receiving groove 32; because the first sealing ring 62 is arranged in the first accommodating groove 32, the fit clearance between the blocking wall 12 and the bracket can be reduced, the occupation of the internal space of the electronic equipment is reduced, and the reduction of the external dimension of the electronic equipment is facilitated; the first dust-proof net 60 may be bonded to the bottom surface of the first receiving groove 32 through the foam 61, or the first dust-proof net 60 may be bonded to the bottom surface of the first receiving groove 32 by using a back adhesive.

Similar to the above structure, the second dust screen 70 is adhered and fixed on the outer surface of the retaining wall 12, and an annular second sealing ring 72 is arranged between the edge of the second dust screen 70 and the rear shell 20, so that the annular inner part of the second sealing ring 72 is avoided from the second through hole 21, and the rear shell 20 and the retaining wall 12 are used for clamping the second sealing ring 72, so that the edge of the second dust screen 70 is in close fit with the rear shell 20; set up at the surface of retaining wall 12 and encircle in the peripheral second holding tank 13 of first through-hole 11, bond the edge of second dust screen 70 in the bottom surface of second holding tank 13 through bubble cotton 71 or gum, make second sealing washer 72 acceptd in second holding tank 13 to reduce the fit clearance between retaining wall 12 and backshell 20, then be favorable to electronic equipment overall dimension's miniaturization.

The electronic equipment can be a mobile phone, a tablet personal computer, a notebook computer, a game handle, intelligent wearable equipment and the like.

The above description is only a preferred embodiment of the present invention, and is 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. The sound outlet structure is characterized by comprising a loudspeaker, a bracket, a front shell and a rear shell;

2. The sound structure of claim 1, wherein the support comprises a lower support and an upper support secured together.

3. The sound outputting structure of claim 2, wherein the lower frame is provided with a groove, and the outer periphery of the horn is connected to the side wall of the groove.

4. The sound emitting structure of claim 3, wherein a rib is convexly disposed on the inner surface of the lower frame, the groove is defined by the front sidewall of the lower frame and the rib, the inner side end of the sound emitting hole extends to the inner surface of the front sidewall, a step surface is disposed on the inner side of the rib, a portion of the horn rim is overlapped on the step surface and is in close fit with the step surface, and another portion of the horn rim abuts against the inner surface of the front sidewall and is in close fit with the front sidewall.

5. The sound outputting structure according to claim 1, wherein said first dust screen is adhered to an outer surface of said support, and a first sealing ring having a ring shape is further provided between an edge of said first dust screen and said blocking wall.

6. The sound outputting structure of claim 5, wherein the outer surface of the holder is provided with a first receiving groove surrounding the periphery of the sound outputting hole, and the edge of the first dust-proof net is bonded to the bottom surface of the first receiving groove.

7. The sound outputting structure according to claim 1, wherein said second dust screen is bonded to an outer surface of said blocking wall, and a second annular seal ring is further provided between an edge of said second dust screen and said rear case.

8. The sound outputting structure of claim 7, wherein the outer surface of the blocking wall is provided with a second receiving groove surrounding the periphery of the first through hole, and the second dust-proof net is adhered to the bottom surface of the second receiving groove.

9. Electronic device, characterized in that it comprises a sound-emitting structure according to any of claims 1-8.