WO2021134278A1

WO2021134278A1 - Loudspeaker box

Info

Publication number: WO2021134278A1
Application number: PCT/CN2019/130066
Authority: WO
Inventors: 王程良
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: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-07-08

Abstract

Provided in the present application is a loudspeaker box, comprising: an upper cover; a lower cover that is matchingly installed with the upper cover to jointly enclose to form an accommodating space; an annular supporting step portion that is formed extending from the upper cover towards the lower cover; and a sound-emitting single body that is accommodated in the accommodating space. The sound-emitting single body is supported on the supporting step portion; the supporting step portion comprises a first support wall that abuts against the sound-emitting single body, and a second support wall that extends from the inner periphery of the first support wall towards the upper cover; a first glue layer is provided between the first support wall and the sound-emitting single body; and a second glue layer is provided between the second support wall and the sound-emitting single body. Compared to the related technology, the loudspeaker according to the present application has superior water resistance and has better acoustic performance.

Description

Speaker box

Technical field

This application relates to the field of loudspeakers, and in particular to a loudspeaker box.

Background technique

With the development of science and technology, people's requirements for the functionality of products are getting stronger and stronger. For speaker boxes, not only are they required to have good acoustic performance, but they also have requirements for waterproof performance.

The speaker box of the related art includes an upper cover, a lower cover assembled with the upper cover to form an accommodation space, and a sounding monomer accommodated in the accommodation space. The sounding monomer is fixed to the speaker box by glue to form a waterproof sealing structure .

However, in the related art, glue is applied on the four sides of the front surface of the sound-producing monomer to form a circle of glue. Although the waterproof effect is good, the width of the step surface of the supporting wall is required to be large, which is affected by the molding of the mold, resulting in the sound channel The height is greatly affected, and the sound is not smooth, which affects the acoustic performance; at the same time, glue on the side of the sound unit, although the sound height of the sound guide channel can be increased, the sound is smooth, but the glue gap is at least 0.70mm Above, the requirements for the length and width of the speaker box are relatively high.

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

technical problem

The purpose of the present application is to provide a speaker box that can seal and waterproof the sound-producing monomer while not affecting the acoustic performance of the speaker box.

Technical solutions

The technical solution of the present application is as follows: a speaker box including an upper cover, a lower cover that is matched and installed with the upper cover to form a containing space, and an annular support step formed by the upper cover extending in the direction of the lower cover Part and a sounding monomer housed in the accommodating space, the sounding monomer is supported on the supporting step part, and the supporting step part includes a first supporting wall abutting against the sounding monomer and a seat A second support wall extending from the inner periphery of the first support wall in the direction of the upper cover, a first adhesive layer is provided between the first support wall and the sound-producing monomer, and the second support wall is connected to the A second glue layer is arranged between the sounding monomers.

Preferably, the upper cover includes an upper cover main body, an upper cover hollow portion provided on the upper cover main body, and an upper cover removal plate covering the upper cover hollow portion, and the upper cover is hollowed out The part includes a ring-shaped groove part formed by the upper cover recessed in the direction of the lower cover, and the upper cover disassembling plate cover is arranged in the groove part.

Preferably, a third glue layer is provided between the upper cover split plate and the groove portion.

Preferably, the upper cover hollow portion and the upper cover disassembly plate are arranged relative to the sound emitting unit, and the projected area of the upper cover hollow portion toward the lower cover is greater than or equal to the direction of the sound emitting unit The projected area in the direction of the lower cover.

Preferably, the sound-emitting monomer includes a diaphragm for vibrating and sounding, and the diaphragm includes a middle spherical top, a folding ring portion extending from the spherical top to a peripheral side, and an extension portion extending from the folding ring portion , The first adhesive layer and the second adhesive layer are arranged on the extension part.

Preferably, the second adhesive layer is connected to the first adhesive layer at the connection between the second support wall and the surface of the diaphragm.

Preferably, the sound-producing monomer is supported on the supporting step portion and the upper cover is spaced apart to form a front sound cavity.

Preferably, the outer side of the sound-producing monomer, the outer side of the supporting step portion, the lower cover and the upper cover jointly form a rear acoustic cavity.

Preferably, the first adhesive layer is a waterproof sealant.

Preferably, the second glue layer fixes the sealant.

Beneficial effect

The beneficial effects of this application are:

Compared with the related art, the speaker box provided by the present application is provided with a first adhesive layer between the first support wall and the sounding monomer to fix the speaker box and the sounding monomer. The connection ensures the stability of the sound emitting unit in the speaker box, and makes the speaker box waterproof. A second glue layer is provided between the second support wall and the sounding monomer, and the second glue layer forms a fixed connection between the speaker box and the sounding monomer, which further strengthens the sounding unit The stability of the body in the speaker box, and the second glue layer seals and isolates the periphery of the sound-producing monomer from the outside, which increases the waterproofness of the speaker box.

Further, the upper cover hollow part on the upper cover main body and the upper cover dismantling plate provided on the upper cover hollow part, the upper cover dismantling plate can be disassembled, and the sounding monomer is installed in the After installation in the speaker box, the second adhesive layer can be glued directly on the sound-producing monomer through the hollowed-out part of the upper cover, without removing other parts in the speaker box, and the operation is simple It is convenient and improves the installation efficiency. After the glue is applied, the speaker box can be installed by closing the upper cover and removing the board, and the operation is simple.

Further, the upper cover hollow portion and the upper cover disassembling plate are arranged relative to the sound emitting unit, and the projected area of the upper cover hollow portion toward the lower cover is greater than or equal to the direction of the sound emitting unit. The projected area in the direction of the lower cover ensures that the glue will not splash on other parts during the glue making process, which increases the accuracy of glue making.

Further, the second glue layer is connected to the first glue layer, which increases the sealing performance of the glue layer and also makes the connection between the sound-producing monomer and the speaker box more stable.

Further, in the first adhesive layer and the second adhesive layer, the sound-producing monomer is sealed and fixedly connected to the speaker box, so that the width of the first supporting wall does not need to be too wide, and the sound output is increased. The height of the channel makes the acoustic performance of the speaker better.

Further, after a second adhesive layer is provided between the second support wall and the sounding monomer, the side of the sounding monomer does not need to be glued, and the side of the sounding monomer does not need a 0.7mm glue space. Effectively reduce the space requirement of the speaker box.

Furthermore, a third adhesive layer is fixedly connected between the upper cover dismantling cover and the groove part, no other parts are added, the installation is simple and easy to operate, and the structure of the speaker box is not affected.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:

FIG. 1 is a schematic diagram of a three-dimensional structure of a speaker box provided by an embodiment of the present application;

Fig. 2 is a perspective exploded schematic view of the speaker box shown in Fig. 1;

Fig. 3 is a schematic diagram of the three-dimensional structure of the upper cover of the speaker box shown in Fig. 1;

Figure 4 is a cross-sectional view of the upper cover of the speaker box along the line A-A in Figure 1

Figure 5 is a cross-sectional view of the speaker box along the line A-A in Figure 1;

Fig. 6 is a partial enlarged schematic view of a cross-sectional view of the speaker box shown in Fig. 5.

Description of symbols for main components: speaker box 1; upper cover 10; upper cover body 11; upper cover hollow portion 12; groove portion 121; upper cover removal plate 13; lower cover 20; sounding monomer 30; supporting step portion 70; The first supporting wall 71; the second supporting wall 72; the first glue layer 40; the second glue layer 50; the third glue layer.

Embodiments of the present invention

The application will be further described below in conjunction with the drawings and implementations.

It should be noted that the terms "first", "second", and "third" in the specification and claims of the application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific sequence. In addition, the term "including" and any variations of them are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.

All the directional indications (such as up, down, left, right, front, back, inside, outside, top, bottom...) in the embodiments of this application are only used to explain in a certain posture (as shown in the figure) The relative positional relationship between the components, etc., if the specific posture changes, the directional indication will also change accordingly. When an element is referred to as being "fixed on" or "disposed on" another element, the element may be directly on the other element or a centering element may also be present at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time.

Please refer to Figures 1 to 6, Figure 1 is a schematic diagram of the three-dimensional structure of the speaker box 1 provided by an embodiment of the present application; Figure 2 is a perspective exploded schematic view of the speaker box 1 shown in Figure 1; Figure 3 is the speaker shown in Figure 1 The three-dimensional structure diagram of the upper cover 10 of the box 1; FIG. 4 is a cross-sectional view of the upper cover 10 of the speaker box 1 along the line AA in FIG. 1; FIG. 5 is a cross-sectional view of the speaker box 1 along the line AA in FIG. 1; Fig. 6 is a partial enlarged schematic view of a cross-sectional view of the speaker box shown in Fig. 5.

The present application provides a speaker box 1, including an upper cover 10, a lower cover 20 that is matched and installed with the upper cover 10 to form a containing space, an annular support step 70 formed by the upper cover 10 extending in the direction of the lower cover 20, and The sounding monomer 30 accommodated in the containing space, the sounding monomer 30 is supported by the supporting step portion 70 and the upper cover 10 is spaced to form a front sound cavity for sound generation, the outer side of the sounding monomer 30, the outer side of the supporting step portion 70 and the bottom The cover 20 and the upper cover 10 jointly form a rear acoustic cavity, which is used to improve the low-frequency acoustic performance and make the acoustic performance of the speaker box 1 better.

Specifically, the supporting step portion 70 includes a first supporting wall 71 that abuts against the sounding monomer 30 and a second supporting wall connected to the inner periphery of the first supporting wall 71 and extending from the inner periphery of the first supporting wall 71 in the direction of the upper cover 10. 72. In this embodiment, a first adhesive layer 40 is provided between the first supporting wall 71 and the sounding monomer 30. The first adhesive layer 40 fixes the sounding monomer 30 on the supporting step 70 in the speaker box 1, and at the same time A sealing layer is formed between the sounding monomer 30 and the supporting step portion 70 to play a waterproof role. In addition, a second adhesive layer 50 is also provided between the second supporting wall 72 and the sounding monomer 30, and the second adhesive layer 50 is further The fixed connection between the sounding monomer 30 and the speaker box is strengthened, and a sealing layer is formed between the sounding monomer 30 and the second supporting wall 72 to completely seal the connection between the sounding monomer 30 and the supporting step 70, Strengthen the waterproof effect.

Further, the sound unit 30 includes a vibration system 31 and a magnetic circuit system 32. The vibration system 31 includes a diaphragm 311 for vibrating and sounding. The magnetic circuit system 32 vibrates and emits sound in the front acoustic cavity by controlling the diaphragm 311 of the vibration system 31 to vibrate. The diaphragm 311 includes a middle dome portion 311a, a folding ring portion 311b extending from the dome portion 311a to the circumferential side, and an extension portion 311c extending from the folding ring portion 311b and abutting on the first supporting wall 71. In this embodiment, a first adhesive layer 40 is provided between the first support wall 71 and the extension portion 311c of the sounding monomer 30, and a fixed connection between the first support wall 71 and the extension portion 311c is formed by the first adhesive layer 40, so that The first supporting wall 71 abuts against the diaphragm 311 to realize the fixing and sealing of the speaker box 1 and the sound emitting unit 30. In order to achieve better waterproof effect and stability of the speaker box 1, in this embodiment, the speaker box 1 further includes a second adhesive layer 50 disposed between the second supporting wall 72 and the extension 311c of the sound emitting unit 30 and passes through The second adhesive layer 50 forms the connection between the second supporting wall 72 and the extension portion 311c. The second adhesive layer 50 can realize the sealing and isolation of the sound emitting monomer 30 from the outside, and further strengthen the fixing of the sound emitting monomer 30 and increase The stability of the speaker box 1, and the second adhesive layer 50 is integrated with the first adhesive layer 40 at the junction of the second support wall 72 and the extension 311c, so that the adhesive layer is firmer and the first support wall 71 can be injected When the mold is processed, the width is required to be reduced, which can save the space of the speaker box 1 and reduce the impact on the sound channel. Moreover, there is no gap between the first adhesive layer 40 and the second adhesive layer 50, and the waterproof and sealing performance is better. In this embodiment, the first glue layer 40 is a waterproof sealant, and the second glue layer 50 fixes the sealant.

It should be noted that the upper cover 10 of the speaker box 1 includes an upper cover main body 11 that encloses a storage space with the lower cover 20, an upper cover hollow portion 12 provided on the upper cover main body 11, and a cover provided on the upper cover hollow portion The upper cover removal plate 13 on the 12, the upper cover removal plate 13 can be removed. After the upper cover removal plate 13 is removed, the sounding unit 30 in the speaker box 1 can be installed, such as the second support wall 72 and the sound The glueing operation of the second glue layer 50 and the like are performed between the monomers 30.

Specifically, the upper cover hollow portion 12 includes an annular groove portion 121 formed by the upper cover 10 recessed in the direction of the lower cover 20, and the upper cover removal plate 13 is covered in the groove portion 121. In this embodiment, the upper cover A third adhesive layer is provided between the demounting plate 13 and the groove portion 121, and the upper cover demounting plate 13 is fixedly installed on the upper cover body 11 through the third glue layer, and the installation process is simple and easy to operate. , No redundant parts are produced, no influence or change on the overall structure of the speaker box 1 is caused, and the acoustic performance of the speaker box 1 is not affected.

In addition, the upper cover hollow portion 12 and the upper cover removal plate 13 are arranged relative to the sound emitting unit, and the projection area of the upper cover hollow portion 12 in the direction of the lower cover 20 is greater than or equal to the projection area of the sound unit 30 in the direction of the lower cover 20 , So that there is a larger operating space during the installation process, which is convenient for gluing operation, and it is not easy to mistakenly stick the glue to other parts, which will affect the acoustic performance of the sound-producing monomer 30.

The beneficial effects of this application are:

Compared with the related art, the speaker box 1 provided by the present application is provided with a first adhesive layer 40 between the first supporting wall 71 and the sounding monomer 30 to fix the connection between the speaker box 1 and the sounding monomer 30 to ensure The stability of the sound emitting unit 30 in the speaker box 1 is improved, and the speaker box 1 is made waterproof. A second adhesive layer 40 is provided between the second supporting wall 72 and the sounding monomer 30. The second adhesive layer 40 forms a fixed connection between the speaker box 1 and the sounding monomer 30, which further strengthens the sounding monomer 30 in the speaker box 1. The internal stability, and the second adhesive layer 40 seals and isolates the surroundings of the sounding monomer 30 from the outside, which increases the waterproofness of the speaker box 1.

Further, the upper cover 20 of the speaker box 1 includes an upper cover main body 11, an upper cover hollow portion 12 on the upper cover main body 11, and an upper cover removal plate 13 covering the upper cover hollow portion 12, and the upper cover removal plate 13 It can be disassembled. After the installation of the sounding monomer 30 in the speaker box 1 is completed, the second glue layer 40 can be glued directly on the sounding monomer 30 through the hollowed-out part 12 of the upper cover, without the need for the inside of the speaker box 1. The other parts of the speaker box 1 are removed, and the operation is simple and convenient, and the installation efficiency is improved. After the glue is applied, the upper cover and the removal plate 13 can be installed to complete the installation of the speaker box 1, and the operation is simple.

Further, the upper cover hollow portion 12 and the upper cover removal plate 13 are disposed relative to the sound emitting unit 30, and the projection area of the upper cover hollow portion 12 toward the lower cover 20 is greater than or equal to the projection area of the sound emitting unit 30 toward the lower cover 20 , Which guarantees that the glue will not splash on other parts during the glue making process, which increases the accuracy of glue making.

Furthermore, the second glue layer 50 is connected to the first glue layer 40, which increases the sealing performance of the glue layer and also makes the connection between the sound emitting monomer 30 and the speaker box 1 more stable.

Furthermore, the first adhesive layer 40 and the second adhesive layer 50 seal and fix the sound emitting monomer 30 to the speaker box 1, so that the width of the first support wall 71 does not need to be too wide, and the height of the sound channel is increased, so that the speaker Better acoustic performance.

Further, after the second adhesive layer 50 is provided between the second support wall 72 and the sounding monomer 30, there is no need to make up the side of the sounding monomer 30, and the side of the sounding monomer 30 does not need 0.7mm glue space, which can effectively reduce the speaker. The space requirement of the box.

Further, a third adhesive layer is fixedly connected between the upper cover disassembling plate 13 and the groove portion 121, no other parts are added, the installation is simple and easy to operate, and the structure and acoustic performance of the speaker box 1 are not affected.

The above are only the implementation manners of this application. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of this application, but these all belong to this application. The scope of protection.

Claims

1. A speaker box, comprising an upper cover, a lower cover that is matched and installed with the upper cover to form a containing space, an annular supporting step portion formed by the upper cover extending in the direction of the lower cover, and a housing The sounding monomer in the containing space, the sounding monomer is supported on the supporting step portion, wherein the supporting step portion includes a first supporting wall that abuts the sounding monomer and a connection and a The inner periphery of the first support wall and a second support wall extending from the inner periphery of the first support wall in the direction of the upper cover, a first glue layer is provided between the first support wall and the sound-producing monomer A second glue layer is provided between the second supporting wall and the sound-producing monomer.

2. The speaker box according to claim 1, wherein the upper cover comprises an upper cover main body, an upper cover hollow portion provided on the upper cover main body, and a cover provided on the upper cover hollow portion The upper cover removal plate, the upper cover hollow portion includes an annular groove portion formed by the upper cover recessed in the direction of the lower cover, and the upper cover removal plate cover is provided in the groove portion.

3. The speaker box according to claim 2, wherein a third glue layer is provided between the upper cover removal plate and the groove portion.

4. The speaker box according to claim 2, wherein the upper cover hollow portion and the upper cover removal plate are arranged relative to the sound emitting unit, and the upper cover hollow portion faces the lower cover The projected area of the direction is greater than or equal to the projected area of the sound emitting unit in the direction of the lower cover.

5. The speaker box according to claim 1, wherein the sound-producing monomer comprises a diaphragm for vibrating and sounding, and the diaphragm includes a middle spherical top and a folding ring extending from the spherical top to the circumferential side Part and an extension part extending from the folding ring part, the first adhesive layer and the second adhesive layer are provided on the extension part.

6. The speaker box according to claim 5, wherein the second adhesive layer is connected to the first adhesive layer at the junction of the second support wall and the surface of the diaphragm.

7. The speaker box according to claim 1, wherein the sound emitting unit is supported by the supporting step portion and the upper cover is spaced to form a front sound cavity.

8. The speaker box according to claim 1, wherein the outer side of the sound emitting unit, the outer side of the supporting step portion, the lower cover and the upper cover together form a rear acoustic cavity.

9. The speaker box according to claim 1, wherein the first adhesive layer is a waterproof sealant.

10. The speaker box according to claim 1, wherein the second glue layer fixes a sealant.