WO2022126767A1

WO2022126767A1 - Speaker enclosure

Info

Publication number: WO2022126767A1
Application number: PCT/CN2020/141532
Authority: WO
Inventors: 任璋; 钟志威
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声光电科技(常州)有限公司
Priority date: 2020-12-18
Filing date: 2020-12-30
Publication date: 2022-06-23
Also published as: CN213906844U

Abstract

Provided by the present invention is a speaker enclosure, comprising a first housing, a second housing assembled with said first housing to form an accommodating cavity, and a sound-emitting unit disposed in said accommodating cavity; said sound-emitting unit divides said accommodating cavity into a front cavity and a rear cavity; said first housing comprises a bottom wall arranged opposite to said second housing and a side wall bending and extending from the outer circumference of said bottom wall in the direction of the second housing; said side wall is stretched in the direction away from said accommodating cavity to form a step part; said step part comprises a step surface facing said second housing; the second housing is welded and fixed to said step surface and enclosed with the side wall to form a glue accommodating groove. The housing of the speaker enclosure provided by the present invention can retain complete edges, such that the problem of glue spillage does not occur during gluing and sealing of the housing.

Description

speaker box

technical field

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

Background technique

In order to adapt to the miniaturization and multi-functional development of various audio equipment and information communication equipment, it is required that the speaker box used in such equipment tends to be more miniaturized, so that the cooperation between the speaker box and other surrounding components is more compact. Especially with the development of thin and light mobile phones, the quality requirements of the speaker boxes used in them are also getting higher and higher.

The speaker box includes a first shell, a second shell assembled with the first shell to form an accommodating cavity, and a sounding unit arranged in the accommodating cavity and dividing the accommodating cavity into a front cavity and a rear cavity. A shell is provided with a gap, and the second shell is extended with a support part that is accommodated in the gap and is laser welded with the first shell. However, if the gap at the welding position needs to be controlled to overflow when glue is applied, it is necessary to use an inclined base to attach the speaker. The boxes are placed at an angle, which increases the conversion process.

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

technical problem

The purpose of the present invention is to provide a speaker box, the shell of the speaker box can retain a complete edge, so that the problem of glue overflow does not occur when the shell is glued and sealed.

technical solutions

The speaker box provided by the present invention includes a first shell, a second shell assembled with the first shell to form a accommodating cavity, and a sound-generating unit disposed in the accommodating cavity, and the sound-generating unit will The accommodating cavity is divided into a front cavity and a rear cavity, and the first shell has a bottom wall opposite to the second shell and is bent from the outer periphery of the bottom wall toward the second shell The extended side wall, the side wall is stretched in a direction away from the accommodating cavity to form a step portion, the step portion includes a step surface facing the second shell, and the second shell is welded and fixed to the The step surface is enclosed with the side wall to form a glue container.

Preferably, a plurality of the stepped portions are provided, and the plurality of the stepped portions are arranged at intervals.

Preferably, a plurality of the step portions are respectively located at the chamfers of the side walls.

Preferably, the second shell is fixed on the stepped surface by laser welding.

Preferably, the second housing includes a plastic part and a reinforcing rigid body fixed on the plastic part, the sound-generating unit is fixed on the plastic part and is enclosed with the reinforcing rigid body to form the front cavity, The plastic part is provided with a sound-guiding channel communicating with the front cavity, and the reinforcing rigid body is welded and fixed on the stepped surface and enclosed with the side wall to form the glue-receiving groove.

Preferably, the reinforcing rigid body comprises a main body part opposite to the bottom wall and arranged at intervals and an edge part bent and extended from the periphery of the main body part, the edge part is closer to the bottom than the main body part wall, and the edge part, the main body part and the side wall are enclosed to form the glue container.

Preferably, the side wall has a top surface on a side away from the bottom wall, and a surface of the main body portion on a side away from the bottom wall and the top surface are located in the same plane.

beneficial effect

Compared with the related art, in the speaker box provided by the present invention, a stepped portion is formed by stretching the side wall in a direction away from the accommodating cavity, and the second shell is welded and fixed on the stepped surface of the stepped portion, and the second shell is connected to the side. The walls are enclosed to form a glue container. When gluing and sealing the shell in the glue container, since the shell retains a complete edge, the problem of glue overflow can be avoided.

Description of drawings

FIG. 1 is an exploded view of the speaker box provided by the present invention.

FIG. 2 is a schematic structural diagram of the speaker box shown in FIG. 1 from another angle.

FIG. 3 is a perspective view of the speaker box shown in FIG. 1 after being assembled.

FIG. 4 is a cross-sectional view of the speaker cabinet shown in FIG. 3 taken along the line A-A.

FIG. 5 is a cross-sectional view of the speaker box shown in FIG. 3 taken along the line B-B.

Embodiments of the present invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 to FIG. 5 , the speaker box includes a first casing 1 , a second casing 2 assembled with the first casing 1 to form an accommodating cavity 10 , and a second casing 2 disposed in the accommodating cavity 10 . The sound generating unit 3 divides the accommodating cavity 10 into a front cavity 10A and a rear cavity 10B.

The first casing 1 has a bottom wall 11 disposed opposite to the second casing 2 and a side wall 13 bent and extended from the outer periphery of the bottom wall 11 toward the second casing 2 .

The side wall 13 is stretched in a direction away from the accommodating cavity 10 to form a stepped portion 15 .

The stepped portion 15 includes a stepped surface 151 facing the second casing 2 , and the second casing 2 is welded and fixed to the stepped surface 151 and is enclosed with the side wall 13 to form a glue container 5 . The sealing between the first casing 1 and the second casing 2 can be achieved by applying glue in the glue container 5 .

In this embodiment, the second casing 2 is fixed to the stepped surface 151 by laser welding.

A plurality of the stepped portions 15 are provided, and the plurality of the stepped portions 15 are arranged at intervals. As shown in FIG. 1 and FIG. 2 , there are two stepped portions 15 , which are respectively located at the chamfers of the side walls 13 .

It can be understood that, in the embodiment mode, the number and position of the step parts 15 are not limited to this, and it is only necessary to ensure that the second housing 2 can be welded and fixed to the stepped surface 151 and fixed by welding. Afterwards, there is sufficient connection strength between the two. For example, the step portion 15 may also be located on the straight edge of the side wall 13 .

It can be understood that, in order to ensure that the second shell 2 can be welded and fixed to the stepped surface 151, at least the parts of the first shell 1 and the second shell 2 at the welding place should be made of metal materials. to make.

In this embodiment, the second casing 2 includes a plastic part 21 and a reinforcing rigid body 23 fixed on the plastic part 21 , and the sounding unit 3 is fixed on the plastic part 21 and is connected with the reinforcing body 23 . The rigid body 23 encloses the front cavity 10A, the plastic part 21 is provided with a sound guide channel 10C communicating with the front cavity 10A, and the sound emitted by the sounding unit 3 passes through the front cavity 10A and the The sound-guiding channel 10C propagates to the outside, and the reinforcing rigid body 23 is welded and fixed to the stepped surface 151 and enclosed with the side wall 13 to form the glue container 5 . Wherein, the reinforcing rigid body 23 and the first casing 1 are both made of metal materials.

The reinforcing rigid body 23 includes a main body portion 231 opposite to the bottom wall 11 and arranged at intervals, and an edge portion 233 formed by bending and extending from the periphery of the main body portion 231 . Adjacent to the bottom wall 11 , the edge portion 233 , the main body portion 231 and the side wall 13 are enclosed to form the glue container 5 .

The side wall 13 has a top surface 131 on a side away from the bottom wall 11 , and a surface of the main body 231 on a side away from the bottom wall 11 and the top surface 131 are in the same plane.

It can be understood that, in other embodiments, the material composition of the first shell 1 and the second shell 2 is not limited to this. For example, the first shell can be configured to include plastic parts and A reinforced rigid body fixed to the plastic part, the reinforced rigid body and the second shell are both made of metal materials, and the reinforced rigid body includes a bottom wall opposite to the second shell and a bottom wall from the bottom The outer peripheral edge of the wall is a side wall that is bent and extended toward the second casing.

The above are only the embodiments of the present invention. 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 invention, but these belong to the present invention. scope of protection.

Claims

A loudspeaker box comprises a first shell, a second shell assembled with the first shell to form an accommodating cavity, and a sounding unit arranged in the accommodating cavity, the sounding The accommodating cavity is divided into a front cavity and a rear cavity, the first shell has a bottom wall opposite to the second shell, and a bottom wall is bent and extended from the outer periphery of the bottom wall to the direction of the second shell The side wall is characterized in that: the side wall is stretched in a direction away from the accommodating cavity to form a step portion, the step portion includes a step surface facing the second shell, and the second shell is welded and fixed A glue container is formed on the step surface and enclosed with the side wall.
The speaker box according to claim 1, wherein a plurality of the stepped portions are provided, and the plurality of the stepped portions are arranged at intervals.
The speaker box according to claim 2, wherein a plurality of the stepped portions are respectively located at the chamfers of the side walls.
The speaker box according to claim 1, wherein the second shell is fixed on the stepped surface by laser welding.
The speaker box according to any one of claims 1-4, wherein the second shell comprises a plastic part and a reinforcing rigid body fixed on the plastic part, and the sound-emitting unit is fixed on the The front cavity is formed on the plastic part and enclosed with the reinforcing rigid body, the plastic part is provided with a sound guide channel communicating with the front cavity, and the reinforcing rigid body is welded and fixed on the stepped surface and is connected with the The side walls are enclosed to form the glue container.
The speaker box according to claim 5, wherein the reinforcing rigid body comprises a main body part opposite to the bottom wall and arranged at intervals and an edge part formed by bending and extending from the periphery of the main body part, the edge part Relative to the main body part, it is closer to the bottom wall, and the edge part, the main body part and the side wall are enclosed to form the glue container.
The speaker box according to claim 6, wherein the side wall has a top surface on a side away from the bottom wall, and a surface of the main body on a side away from the bottom wall is located on the same side as the top surface in plane.