CN215818486U

CN215818486U - Loudspeaker box

Info

Publication number: CN215818486U
Application number: CN202122132334.2U
Authority: CN
Inventors: 刘莎莎; 刘晓东
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Microtech Changzhou Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd; AAC Microtech Changzhou Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-11
Anticipated expiration: 2031-09-03

Abstract

The utility model provides a loudspeaker box which comprises a metal shell and a loudspeaker single body which is accommodated in the metal shell and fixed with the metal shell, wherein the loudspeaker single body comprises a lower clamping plate, the lower clamping plate comprises a bottom plate arranged at the bottom of the loudspeaker single body and a side plate which is bent and extended from the bottom plate and arranged at the side edge of the loudspeaker single body, and the side plate and the metal shell are fixedly welded in a laser mode. The loudspeaker box has high reliability.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of electroacoustic conversion, in particular to a loudspeaker box applied to portable electronic products.

[ background of the utility model ]

The speaker box of the related art includes a metal case and a speaker unit accommodated in the metal case and fixed to the metal case. Under the general condition, it is fixed through glue bonding between speaker monomer and the metal casing, owing to receive metal casing overall structure molding and dimensional requirement's restriction, can cause the free glue bonding region of fixed speaker and mend to glue the space narrow and small to lead to speaker monomer glue to bond insecurely, there is the risk of falling the inefficacy when falling, and the reliability is not high. In addition, the glue amount and the glue flow are controlled by the glue beating and glue supplementing procedures when the loudspeaker single bodies are adhered and fixed by glue.

Therefore, there is a need to provide a new speaker box to solve the above technical problems.

[ Utility model ] content

The utility model aims to overcome the technical problems and provide a loudspeaker box with high reliability.

In order to achieve the above object, the present invention provides a speaker box, which includes a metal housing and a speaker unit accommodated in the metal housing and fixed to the metal housing, wherein the speaker unit includes a lower clamp plate, the lower clamp plate includes a bottom plate disposed at the bottom of the speaker unit and a side plate disposed at a side of the speaker unit and bent and extended from the bottom plate, and the side plate is fixed to the metal housing by laser welding.

As a modification, the side plate is arranged at a distance from the side edge of the speaker unit.

As an improvement, the metal shell includes a top wall, a bottom wall disposed opposite to the top wall, and a side wall connecting the top wall and the bottom wall, and the side plate is fixed to the side wall.

As an improvement, the speaker unit further includes a front cover and a vibrating diaphragm disposed inside the front cover, the front cover is disposed on the top of the speaker unit, the top wall is provided with a through hole, the front cover extends out of the metal shell through the through hole, the front cover includes a main body portion disposed opposite to the vibrating diaphragm, an extending portion extending from the periphery of the main body portion in a direction approaching the lower clamp plate, and a flange portion extending from the end of the extending portion in an outward bending manner, and the top wall is pressed on the flange portion.

As an improvement, the front cover and the vibrating diaphragm are enclosed to form a front cavity of the loudspeaker unit, a main body part of the front cover is provided with a sound hole array communicated with the front cavity, the loudspeaker unit further comprises a damping mesh attached to the main body part, the damping mesh covers the sound hole array, the damping mesh comprises subunits corresponding to the sound holes in the sound hole array one by one, and the periphery of each subunit is fixedly connected with the main body part.

As an improvement, the damping mesh cloth is attached to the outer side of the main body part, the loudspeaker box further comprises an annular gasket attached to the outer side of the main body part, the damping mesh cloth is contained in an annular hole of the annular gasket, and the thickness of the annular gasket is larger than that of the damping mesh cloth.

Compared with the prior art, the lower clamping plate comprises a bottom plate arranged at the bottom of the loudspeaker single body and a side plate which is bent and extended from the bottom plate and arranged at the side edge of the loudspeaker single body, and the side plate and the metal shell are fixed in a laser welding mode. The loudspeaker monomer is fixed in metal casing through curb plate and the fixed mode of metal casing laser welding, on the one hand the laser welding fixed strength height has solved the problem that the loudspeaker monomer glue that leads to through glue is not firm in the glue bonding region of fixed loudspeaker monomer when fixed and the narrow and small loudspeaker monomer glue that leads to in supplementary gluey space bonds, has improved the reliability when falling, and on the other hand has left out and has glued the process of mending when fixed through glue and to the loaded down with trivial details control that glues volume and colloid flow, has optimized the process.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 of the present invention, other drawings can be obtained without inventive efforts, wherein:

FIG. 1 is a schematic perspective view of a speaker box according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic perspective exploded view of a part of the speaker unit in the speaker box according to the present invention.

[ detailed description ] embodiments

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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 3, in order to provide the speaker box 100 of the present invention, the speaker box 100 includes a metal housing 1 and a speaker unit 2 accommodated in the metal housing 1 and fixed to the metal housing 1, the speaker unit 2 includes a lower clamp plate 21, the lower clamp plate 21 includes a bottom plate 211 disposed at the bottom of the speaker unit 2 and a side plate 212 bent and extended from the bottom plate 211 and disposed at a side of the speaker unit 2, and the side plate 212 is fixed to the metal housing 1 by laser welding. Preferably, the side plate 212 is spaced apart from the side edge of the speaker unit 2, so as to prevent damage to the speaker unit 2 caused by laser spot welding.

In the present embodiment, the metal case 1 includes a top wall 11, a bottom wall 12 disposed opposite to the top wall 11, and a side wall 13 connecting the top wall 11 and the bottom wall 12, and the side plate 212 is fixed to the side wall 13. Alternatively, the metal housing 1 may be configured as a vertically split structure as shown in this embodiment, and include an upper metal housing 1a and a lower metal housing 1b, but of course, in other embodiments, the metal housing 1 may also be configured as a horizontally split structure.

The speaker unit 2 further includes a front cover 22 and a diaphragm 23 disposed inside the front cover 22, the front cover 22 is disposed on the top of the speaker unit 2, the top wall 11 is provided with a through hole 111, the front cover 22 extends out of the metal shell 1 from the through hole 111, the front cover 22 includes a main body portion 221 disposed opposite to the diaphragm 23, an extending portion 222 extending from the periphery of the main body portion 221 to a direction close to the lower clamp plate 21, and a flange portion 223 extending from the end of the extending portion 222 to be bent outward, and the top wall 11 is press-fitted on the flange portion 223. The pressing of the top wall 11 to the flanging part 223 can ensure that the loudspeaker single body 2 is fixed more stably and reliably.

The front cover 22 and the vibrating diaphragm 23 enclose to form the front cavity 20 of the speaker unit 2, the main body part 221 of the front cover 22 is provided with a sound hole array communicated with the front cavity 20, the speaker unit 2 further comprises a damping mesh 24 attached to the main body part 221, the damping mesh 24 covers the sound hole array, the damping mesh 24 comprises subunits 241 in one-to-one correspondence with the sound holes 2211 in the sound hole array, and the periphery of each subunit 241 is fixedly connected with the main body part 221. The mode can adjust the sound-producing airflow and the sound-producing mode, and can prevent the damping mesh cloth on the single overlarge sound hole from shaking.

In this embodiment, the damping mesh 24 is attached to the outer side of the main body portion 221, the speaker box 100 further includes an annular gasket 3 attached to the outer side of the main body portion 221, the damping mesh 24 is accommodated in the annular hole 31 of the annular gasket 3, and the thickness of the annular gasket 3 is greater than that of the damping mesh 24. The ring gasket 3 may be a double-sided tape, and the speaker box 100 is assembled to a terminal device through the ring gasket 3. The thickness of the annular spacer 3 being greater than the thickness of the damping mesh 24 prevents damage to the damping mesh 24 when assembly pressure is applied.

While the utility model has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a loudspeaker box, its include the metal casing with accept in the metal casing in and with the fixed speaker monomer of metal casing, the speaker monomer includes the lower plate, its characterized in that, the lower plate including set up in the bottom plate of the free bottom of speaker with certainly the bottom plate buckle extend set up in the curb plate of the free side of speaker, the curb plate with metal casing laser welding is fixed.

2. A loudspeaker enclosure according to claim 1, wherein the side panels are spaced from the sides of the speaker units.

3. A loudspeaker enclosure according to claim 1, wherein the metal housing comprises a top wall, a bottom wall disposed opposite the top wall, and side walls connecting the top and bottom walls, the side panels being secured to the side walls.

4. The speaker box according to claim 3, wherein the speaker unit further includes a front cover and a diaphragm disposed inside the front cover, the front cover is disposed on the top of the speaker unit, the top wall is provided with a through hole, the front cover extends out of the metal shell from the through hole, the front cover includes a main body portion disposed opposite to the diaphragm, an extension portion extending from the periphery of the main body portion in a direction approaching the lower clamp plate, and a flange portion extending from the end of the extension portion in an outward bending manner, and the top wall is pressed on the flange portion.

5. The loudspeaker box of claim 4, wherein the front cover and the diaphragm are enclosed to form a front cavity of the loudspeaker unit, a main body portion of the front cover is provided with a sound hole array communicated with the front cavity, the loudspeaker unit further comprises a damping mesh attached to the main body portion, the damping mesh covers the sound hole array, the damping mesh comprises sub-units corresponding to the sound holes in the sound hole array one by one, and the periphery of each sub-unit is fixedly connected with the main body portion.

6. The speaker box according to claim 5, wherein the damping mesh cloth is attached to the outer side of the main body portion, the speaker box further comprises an annular gasket attached to the outer side of the main body portion, the damping mesh cloth is contained in an annular hole of the annular gasket, and the thickness of the annular gasket is greater than that of the damping mesh cloth.