WO2022000773A1

WO2022000773A1 - Loudspeaker box

Info

Publication number: WO2022000773A1
Application number: PCT/CN2020/113926
Authority: WO
Inventors: 李金明
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2020-06-30
Filing date: 2020-09-08
Publication date: 2022-01-06
Also published as: CN212811927U

Abstract

The present utility model provides a loudspeaker box, comprising a housing having an accommodating space and a sound production unit accommodated in the accommodating space, wherein the sound production unit comprises a vibrating diaphragm used for vibrating to produce sound; a through hole penetrating through the housing is formed in the housing. The loudspeaker box further comprises a steel sheet embedded in the housing and completely covering the though hole; and the housing is provided with a glue containing groove. The loudspeaker box further comprises a steel sheet connection material connected to the steel sheet; a joint of the steel sheet and the steel sheet connection material is provided with a pre-breaking opening used for breaking off the steel sheet connection material to remove the steel sheet connection material from the steel sheet, wherein the pre-breaking opening is located in the glue containing groove, and the glue containing groove is filled with glue to achieve sealing of the pre-breaking opening. Compared with the related art, the loudspeaker box of the present utility model is good in air tightness and high in space utilization rate.

Description

speaker box

technical field

The utility model relates to the field of electro-acoustic conversion, in particular to a speaker box.

Background technique

With the rapid development of science and technology, the popularity of audio equipment is getting higher and higher, and high-quality music enjoyment has gradually become popular among many entertainment methods. Therefore, a large number of speaker boxes have been widely used in the current smart in mobile devices.

A speaker box of the related art includes a housing with a housing space and a sound-generating unit accommodated in the housing space, the sound-generating unit includes a diaphragm for vibrating and producing sound, and the housing is provided with a The through hole is arranged opposite to the diaphragm, and the speaker box further includes a steel sheet fixed to the casing and completely covering the through hole.

technical problem

However, the speaker box of the related art needs to have positioning holes on the casing to fix the steel sheet, which takes up a lot of space. In addition, when the shell requires laser direct forming technology, the steel sheet cannot be grounded.

Therefore, it is necessary to provide a new speaker box to solve the above technical problems.

technical solutions

The purpose of the utility model is to provide a speaker box with good air tightness and high space utilization.

In order to achieve the above purpose, the present invention provides a loudspeaker box, which includes a housing with a receiving space and a sound-producing unit accommodated in the receiving space, and the sound-producing unit includes a diaphragm for vibrating and sounding, The casing is provided with a through hole passing through it, the speaker box further includes a steel sheet embedded in the casing and completely covering the through hole, the casing is provided with an adhesive groove, and the loudspeaker The box also includes a steel sheet connecting material connected with the steel sheet, and the connection between the steel sheet and the steel sheet connecting material is provided with a connection for breaking the steel sheet connecting material to remove the steel sheet connecting material from the steel sheet connecting material. A pre-fracture for removing the steel sheet, the pre-fracture is located in the glue holding tank, and the glue holding tank is filled with glue to realize the sealing at the pre-fracture.

Preferably, the casing includes an upper casing and a lower casing assembled with the upper casing to form the receiving space, the through hole is arranged through the upper casing, and the upper casing includes a setting The first shell wall of the through hole and the second shell wall connected with the first shell wall, the glue accommodating groove is formed by the first shell wall recessed along the penetration direction of the through hole and penetrates through the first shell wall. The outer surface of the second shell wall.

Preferably, the steel sheet includes a main body part embedded in the upper casing and completely covering the through hole and an extension part extending from the peripheral side of the main body part to the glue container; the steel sheet The connecting material includes a main body part located on the outer side of the casing and opposite to the steel sheet, and a connecting part extending from the main body part into the glue container and connecting the extending part; the pre-breaking opening It is arranged at the connection between the extension part and the connection part.

Preferably, the body portion is further provided with a positioning hole passing through it.

Preferably, the steel sheet is connected to the ground.

Preferably, the steel sheet and the upper casing are integrally injection-molded.

beneficial effect

Compared with the related art, in the speaker box of the present invention, the shell is provided with a glue-receiving groove, and the speaker box further includes a steel sheet connecting material connected with the steel sheet, and the steel sheet is connected to the steel sheet. A pre-breaking opening for breaking the steel sheet connecting material to remove the steel sheet connecting material from the steel sheet is provided at the connection of the piece of material, the pre-break is located in the glue container, the glue container The groove is filled with glue to realize the sealing at the pre-break. The arrangement of this structure makes the area of the steel sheet embedded in the casing small, does not occupy too much space of the casing, and facilitates the miniaturized design of the speaker box; on the other hand, when the steel sheet is used After the continuous material is removed, glue can be injected into the glue container to seal the pre-break, thereby ensuring the airtightness of the speaker box. When the shell needs to use the laser direct forming technology, the steel sheet can be connected to the ground to play an anode protection effect on the steel sheet.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

Fig. 1 is the stereoscopic structure schematic diagram of the speaker box of the present invention;

Fig. 2 is the partial three-dimensional structure exploded view of the speaker box of the present invention;

Fig. 3 is a sectional view along line A-A in Fig. 1;

FIG. 4 is an enlarged view along the portion indicated by B in FIG. 1 .

Embodiments of the present invention

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, but not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-4 at the same time, the present invention provides a speaker box 100 , which includes a housing 1 having a receiving space 10 and a sounding unit 2 received in the receiving space 10 .

The sound-generating unit 2 includes a vibrating membrane 21 for vibrating and sounding; the housing 1 is provided with a through hole 11 passing through it. , the through hole 11 may not be directly opposite to the diaphragm 21 .

In order to improve the mid-frequency and high-frequency performance of the speaker box 100, the speaker box 100 further includes a steel sheet 3 embedded in the housing 1 and completely covering the through hole 11. The steel sheet 3, the vibration The membrane 21 and the casing 1 together form a front cavity 20 .

In this embodiment, the housing 1 is provided with a glue container 12 , and the speaker box 100 further includes a steel sheet connecting material 4 connected with the steel sheet 3 , and the steel sheet connecting material 4 is partially accommodated in the The glue container 12 is in contact with the steel sheet 3, and the connection between the steel sheet 3 and the steel sheet connecting material 4 is provided for breaking the steel sheet connecting material 4 to connect the steel sheet. The pre-fracture 5 where the material 4 is removed from the steel sheet 3 is located in the glue container 12 , and the glue container 12 is filled with glue to seal the pre-break 5 . The arrangement of this structure makes the area of the steel sheet embedded in the shell 1 small, and does not occupy too much space of the shell 1, which is convenient for the miniaturized design of the speaker box 100; on the other hand, when all the After the steel sheet material 4 is removed, glue can be injected into the glue container 12 to seal the pre-fracture 5 , thereby ensuring the airtightness of the speaker box 100 . When the shell 1 needs to use the laser direct forming technology, the steel sheet connecting material 4 can be grounded to play an anode protection role for the steel sheet 3 .

Specifically, the casing 1 includes an upper casing 13 and a lower casing 14 assembled with the upper casing 13 to form the receiving space 10 , the through hole 11 is provided through the upper casing 13 , and the The upper casing 13 includes a first casing wall 131 provided with the through hole 11 and a second casing wall 132 connected with the first casing wall 131 . The penetration direction of the through hole 11 is concavely formed and penetrates the outer surface of the second shell wall 132 .

Further, the steel sheet 3 includes a main body portion 31 embedded in the upper casing 13 and completely covering the through hole 11 , and a main body portion 31 extending from the peripheral side of the main body portion 31 to the glue container 12 . The extension part 32; the steel sheet connecting material 4 includes a main body part 41 located on the outer side of the casing 1 and arranged opposite to the steel sheet 3 and extending from the main body part 41 into the glue container 12 And the connecting portion 42 of the extending portion 32 is connected; the pre-break 5 is arranged at the connecting portion of the extending portion 32 and the connecting portion 42 .

More preferably, the body portion 41 is further provided with a positioning hole 43 therethrough, and the steel sheet 3 is positioned through the positioning hole 43 of the steel sheet connecting material 4 during injection molding. Of course, the size and quantity of the positioning holes 43 can be designed according to actual conditions.

It is worth mentioning that, in this embodiment, the steel sheet 3 and the upper casing 13 are integrally formed by injection molding. The arrangement of this structure simplifies the assembly process, avoids the assembly error between the steel sheet 3 and the upper casing 13, and does not need to provide positioning holes on the casing 1 to fix the steel sheet 3, The space utilization rate of the speaker box 100 is further improved.

Compared with the related art, in the speaker box of the present invention, the shell is provided with a glue container, and the speaker box further includes a steel sheet connecting material connected with the steel sheet, and the steel sheet is connected to the steel sheet. The connection of the connecting material is provided with a pre-break for breaking the steel sheet connecting material to remove the steel sheet connecting material from the steel sheet. Glue is filled inside to achieve sealing at the pre-break. The arrangement of this structure makes the area of the steel sheet embedded in the casing small, does not occupy too much space of the casing, and facilitates the miniaturized design of the speaker box; on the other hand, when the steel sheet is used After the continuous material is removed, glue can be injected into the glue container to seal the pre-break, thereby ensuring the airtightness of the speaker box. When the shell needs to use the laser direct forming technology, the steel sheet can be connected to the ground to play an anode protection effect on the steel sheet.

The above are only the embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these belong to The scope of protection of the utility model.

Claims

A loudspeaker box includes a housing with a housing space and a sound-generating unit accommodated in the housing space, the sound-generating unit includes a vibrating membrane for vibrating and producing sound, and the housing is provided with a Through holes, the speaker box further includes a steel sheet embedded in the casing and completely covering the through holes, characterized in that the casing is provided with an adhesive groove, and the speaker box further includes The steel sheet connecting material connected by the steel sheet, the connection between the steel sheet and the steel sheet connecting material is provided with a pre-movement for breaking the steel sheet connecting material to remove the steel sheet connecting material from the steel sheet. The pre-fracture is located in the glue container, and the glue container is filled with glue to seal the pre-break.
The speaker box according to claim 1, wherein the casing comprises an upper casing and a lower casing assembled with the upper casing to form the accommodating space, and the through hole penetrates the upper casing The upper shell includes a first shell wall with the through hole and a second shell wall connected with the first shell wall, and the glue container is formed by the first shell wall along the through hole. The penetration direction of the hole is concavely formed and penetrates the outer surface of the second housing wall.
The speaker box according to claim 2, wherein the steel sheet comprises a main body part embedded in the upper casing and completely covering the through hole; an extension part extending from the glue tank; the steel sheet connecting material includes a body part located on the outer side of the casing and arranged opposite to the steel sheet and a body part extending from the body part into the glue container and connecting the connection part of the extension part; the pre-break is arranged at the connection part of the extension part and the connection part.
The loudspeaker box according to claim 3, wherein the body portion is further provided with a positioning hole passing through it.
The speaker box according to claim 1, wherein the steel sheet is connected to the ground.
The speaker box according to claim 2, wherein the steel sheet and the upper shell are integrally formed by injection molding.