CN215773465U

CN215773465U - Loudspeaker box

Info

Publication number: CN215773465U
Application number: CN202122126688.6U
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: 2022-02-08
Anticipated expiration: 2031-09-03

Abstract

The utility model provides a loudspeaker box which comprises a metal shell and a loudspeaker single body fixed in the metal shell, wherein the loudspeaker single body comprises a lower clamping plate, the lower clamping plate is arranged at the bottom of the loudspeaker single body, the loudspeaker box also comprises a metal plate which is arranged in the metal shell and is attached and fixed to the lower clamping plate, and the metal plate and the metal shell are fixed through laser welding. 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 fixed in the metal housing, wherein the speaker unit includes a lower clamp plate disposed at the bottom of the speaker unit, the speaker box further includes a metal plate disposed in the metal housing and fixed to the lower clamp plate in an attached manner, and the metal plate and the metal housing are fixed by laser welding.

As an improvement, the metal plate and the lower clamping plate are fixed by laser welding.

As a modification, the metal plate is a carbon steel plate or a stainless steel plate.

As an improvement, the metal case 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 metal 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 is exposed from the through hole to the metal shell, the front cover includes a main body portion disposed opposite to the vibrating diaphragm, an extending portion bent and extending from the periphery of the main body portion to a direction close to the lower clamp plate, and a flange portion bent and extending from the end of the extending portion, and the speaker box further includes a rubber ring sandwiched between the top wall and the flange portion.

As an improvement, the rubber ring includes a first portion sandwiched between the top wall and the flange portion, and a second portion extending from the first portion in a direction away from the top wall, and the second portion is sandwiched between a side surface of the speaker unit and the side wall.

As an improvement, the speaker box is still including set up in cushion in the metal casing, the metal sheet is equipped with the hole of dodging that runs through, the cushion set up in dodge the hole and press from both sides and locate the free lower plate of speaker with between the diapire.

As an improvement, the cushion block is made of foam or sound absorption cotton.

As an improvement, the protecgulum with the vibrating diaphragm encloses to close and forms the free ante-chamber of speaker, the main part of protecgulum be equipped with the phonate hole array of ante-chamber intercommunication, the speaker monomer still including attached in the damping screen cloth of main part, the damping screen cloth covers the phonate hole array, the damping screen cloth include with the sub-unit of the phonate hole one-to-one in the phonate hole array, every the periphery of sub-unit all with main part fixed connection, the surface of main part with the surface parallel and level setting of roof.

As an improvement, the speaker box further comprises two positioning pieces fixed on the side walls, the two positioning pieces are respectively arranged on the two opposite side walls of the metal shell and are arranged in a staggered manner, each positioning piece comprises a first sub piece fixed on the side walls in an attached manner and a second sub piece bent and extended from the first sub piece in a direction away from the side walls, and the second sub piece is provided with a through positioning hole.

Compared with the prior art, the loudspeaker box fixes the loudspeaker monomer in the metal shell in a mode of laser welding and fixing the metal plate which is attached to the lower clamping plate and the metal shell, on one hand, the laser welding fixing strength is high, the problems that glue bonding areas for fixing the loudspeaker monomer in glue fixing and glue bonding of the loudspeaker monomer are not firm due to narrow glue supplementing space are solved, the reliability in falling is improved, on the other hand, the glue gluing and glue supplementing process in glue fixing and the complex control on glue amount and glue flowing are omitted, and the process is optimized.

[ 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 view of the assembly of a speaker unit and a rubber ring in the speaker box according to the present invention;

FIG. 4 is a schematic perspective view of the speaker unit, the metal plate and the cushion block assembly in the speaker box according to the present invention;

fig. 5 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 5, 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 fixed in the metal housing 1, the speaker unit 2 includes a lower clamp plate 21, the lower clamp plate 21 is disposed at the bottom of the speaker unit 2, the speaker box 100 further includes a metal plate 3 disposed in the metal housing 1 and fixed to the lower clamp plate 21 in an attached manner, and the metal plate 3 is fixed to the metal housing 1 by laser welding.

Preferably, the metal plate 3 is fixed to the lower plate 21 by laser welding. The metal plate 3 may be a carbon steel plate or a stainless steel plate.

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 metal plate 3 is fixed to the side wall 13. Alternatively, the metal shell 1 is formed by splicing an upper metal shell 1a and a lower metal shell 1b which are covered and connected with each other.

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 is exposed from the through hole 111 to the metal housing 1, 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 in a bending manner in a direction approaching the lower clamp plate 21, and a flange portion 223 extending from the end of the extending portion 222 in an outward bending manner, and the speaker box 100 further includes a rubber ring 4 interposed between the top wall 11 and the flange portion 223. Preferably, the rubber ring 4 includes a first portion 41 interposed between the top wall 11 and the flange 223, and a second portion 42 extending from the first portion 41 in a direction away from the top wall 11, and the second portion 42 is interposed between a side surface of the speaker unit 2 and the side wall 13. The rubber ring 4 can ensure that the loudspeaker single body 2 is more stable and reliable in fixation, and meanwhile, the sealing performance of the loudspeaker box 100 can be ensured, and the shell vibration is reduced.

The speaker box 100 further includes a cushion block 5 disposed in the metal housing 1, the metal plate 3 is provided with a through-hole 31, and the cushion block 5 is disposed in the through-hole 31 and clamped between the lower clamp plate 21 of the speaker unit 2 and the bottom wall 12. Preferably, the cushion block 5 is foam or sound absorption cotton. The setting of cushion 5 can further guarantee the fixed reliable and more stable of speaker monomer 2 reduces the emergence that the shell shakes simultaneously.

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 the present embodiment, the outer surface of the body portion 221 is flush with the outer surface of the top wall 11.

The speaker box 100 further includes a positioning piece 6 fixed to the side wall 13, and the speaker box 100 is assembled to the terminal device through the positioning piece 6. Preferably, two positioning pieces 6 are provided, the two positioning pieces 6 are respectively provided on the two opposite side walls 13 of the metal shell 1, the two positioning pieces 6 are arranged in a staggered manner, each positioning piece 6 comprises a first sub-piece 61 fixedly attached to the side wall 13 and a second sub-piece 62 extending from the first sub-piece 61 in a bending manner in a direction away from the side wall 13, and the second sub-piece 62 is provided with a through positioning hole 621. This ensures a stable and reliable assembly of the loudspeaker enclosure 100 to the terminal device.

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 includes the metal casing and is fixed in speaker monomer in the metal casing, speaker monomer includes the lower plate, the lower plate set up in speaker monomer's bottom, a serial communication port, loudspeaker box still including set up in the metal casing and attached being fixed in the metal sheet of lower plate, the metal sheet with metal casing laser welding is fixed.

2. A loudspeaker enclosure according to claim 1, wherein the metal plate is laser welded to the lower clamping plate.

3. A loudspeaker enclosure according to claim 1, wherein the metal plate is a carbon steel plate or a stainless steel plate.

4. 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 wall and the bottom wall, the metal plate being fixed to the side walls.

5. The speaker box according to claim 4, wherein the speaker unit further includes a front cover and a diaphragm disposed inside the front cover, the front cover is disposed on a top of the speaker unit, the top wall is provided with a through hole, the front cover is exposed from the through hole to the metal housing, the front cover includes a main body portion disposed opposite to the diaphragm, an extension portion bent and extended from a periphery of the main body portion toward a direction close to the lower clamp plate, and a flange portion bent and extended from a distal end of the extension portion, and the speaker box further includes a rubber ring interposed between the top wall and the flange portion.

6. The speaker box according to claim 5, wherein the rubber ring includes a first portion sandwiched between the top wall and the flange portion, and a second portion extending from the first portion in a direction away from the top wall, the second portion being sandwiched between a side surface of the speaker unit and the side wall.

7. The speaker box according to claim 5, further comprising a pad block disposed in the metal shell, wherein the metal plate has a through-hole, and the pad block is disposed in the through-hole and sandwiched between the bottom plate and the bottom wall of the speaker unit.

8. A loudspeaker enclosure according to claim 7, wherein the spacer is foam or sound absorbing foam.

9. The loudspeaker box of claim 5, 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 subunits corresponding to sound holes in the sound hole array one by one, the periphery of each subunit is fixedly connected with the main body portion, and the outer surface of the main body portion is flush with the outer surface of the top wall.

10. The speaker box as claimed in claim 4, further comprising two positioning pieces fixed to the side walls, wherein the two positioning pieces are respectively disposed on two opposite side walls of the metal shell, and are disposed in a staggered manner, each positioning piece includes a first sub-piece fixed to the side wall and a second sub-piece bent and extended from the first sub-piece in a direction away from the side wall, and the second sub-piece is provided with a through positioning hole.