CN213906843U

CN213906843U - Loudspeaker box

Info

Publication number: CN213906843U
Application number: CN202023086163.6U
Authority: CN
Inventors: 任璋; 钟志威; 王常亮
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-06
Anticipated expiration: 2030-12-18
Also published as: WO2022126784A1

Abstract

The utility model provides a loudspeaker box, including the casing that has accommodating space and accept in accommodating space's sound production monomer, the sound production monomer includes the vibrating diaphragm, the vibrating diaphragm will accommodating space separates for antechamber and back chamber, the sound production monomer still is equipped with and is used for the pad of being connected with external circuit electricity, loudspeaker box still locates including the lid the free ventilative separator of sound production, ventilative separator is located the back chamber, ventilative separator is including ventilative separator body and cladding insulating layer on the ventilative separator body.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustoelectric field especially relates to an apply to speaker box of portable electronic product.

[ background of the invention ]

With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of a mobile phone are very diverse, one of which is a high-quality music function, and thus, a speaker box for playing sound is widely applied to the current smart mobile devices.

The loudspeaker box comprises a shell and a sounding single body contained in the shell, wherein the sounding single body is provided with a bonding pad electrically connected with an external circuit, and the loudspeaker box further comprises a metal breathable isolating piece covered on the sounding single body. In the related art, the metal gas-permeable spacer is close to the pad area, and the risk of short circuit may be caused by assembly tolerance fluctuation or slight deformation of the metal mesh with mechanical reliability.

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

[ Utility model ] content

An object of the utility model is to provide a problem of above-mentioned short circuit risk is solved to speaker box.

In order to achieve the above object, the utility model provides a loudspeaker box, including the casing that has accommodating space and accept in accommodating space's sound production monomer, the sound production monomer includes the vibrating diaphragm, the vibrating diaphragm will accommodating space separates for antechamber and back chamber, the sound production monomer still is equipped with and is used for the pad of being connected with external circuit electricity, loudspeaker box still locates including the lid the free ventilative separator of sound production, ventilative separator is located the back chamber, ventilative separator is including ventilative separator body and cladding insulating layer on the ventilative separator body.

Preferably, the gas-permeable barrier body is a metal mesh, and the insulating layer is formed of an insulating material soaked, sprayed or deposited on the metal mesh.

Preferably, the breathable separator body is a net structure made of a metal material, and an insulating layer is coated on the outer surface of the metal material and is formed by an insulating material soaked, sprayed or deposited on the metal material.

Preferably, the breathable isolating piece comprises a bottom wall attached to the sound generating single body, an extending part formed by bending and extending the periphery of the bottom wall towards the direction of the vibrating diaphragm, and a fixing part bent and extending from the extending part towards the direction far away from the sound generating single body; the fixing part is fixedly connected with the shell.

Preferably, the housing comprises a front cover and a rear cover assembled with the front cover to form an accommodating space, and the front cover comprises a plastic part and a reinforcing part fixed to the plastic part by injection molding; the plastic piece comprises a retaining wall, a bottom wall connected with one end of the retaining wall, a sound outlet part protruding out of one side of the retaining wall, and a mounting groove formed by the enclosing of the retaining wall and the bottom wall; the sound production monomer is fixed in the mounting groove, the fixed part with barricade fixed connection.

Preferably, the reinforcing member includes a body and a plurality of walls extending from the body into the plastic member, the walls enclosing a through hole filled with the plastic of the plastic member.

Compared with the prior art, the utility model discloses a speaker box is through cladding insulating layer on ventilative separator to avoid the short circuit risk between ventilative separator and the pad.

[ description of the drawings ]

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

fig. 1 is an exploded view of a preferred embodiment of the speaker box of the present invention;

FIG. 2 is a perspective view of a preferred embodiment of the structure of a part of the speaker box of the present invention;

fig. 3 is a schematic perspective view of the air-permeable partition in the loudspeaker enclosure of fig. 1;

FIG. 4 is a cross-sectional view of the breathable barrier of FIG. 3 taken along line A-A;

fig. 5 is a perspective view of the speaker box shown in fig. 2 from another perspective.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the speaker box includes a housing having an accommodating space, and a sound generating unit 3 having a diaphragm 31, wherein the sound generating unit 3 is accommodated in the housing 1, and the diaphragm 31 divides the accommodating space into a front cavity and a rear cavity.

The housing includes a front cover 11 and a rear cover (not shown). The front cover 11 includes a plastic member 111 and a reinforcing member 113 injection-fixed to the plastic member 111. Working of plastics 111 include barricade 1111, with diapire 1112 that the one end of barricade 1111 is connected, certainly the protruding sound portion 1113 that stretches out of barricade 1111 one side, by barricade 1111 with the mounting groove 1114 that the diapire 1112 encloses and closes and form and locate on the barricade 1111 and with the depressed part 1115 that the mounting groove 1114 communicates. The sound emitting portion 1113 communicates with the front chamber, thereby emitting sound.

The reinforcement member 113 includes a body 114 and a plurality of walls 115 extending from the body 114 into the plastic member 111, the walls 115 surround to form through holes 116, and the through holes 116 are filled with the plastic of the plastic member 111.

In the present embodiment, the reinforcing member 113 is made of a metal material. The reinforcing member 113 made of a metal material is advantageous not only in reinforcing the strength of the front cover 11 but also in dissipating heat from the speaker box. Typically, the reinforcing member 113 is made of a steel material.

In this embodiment, the enclosure wall 115 is stamped and formed from the body 114.

It will be appreciated that in other embodiments the composition of the front cover 11 is not limited thereto, for example, the front cover 11 may also be provided to be made of plastic only.

The sounding single body 3 is provided with a pad 33 for being electrically connected with an external circuit, and the pad 33 extends from the recessed part 1115 to the side of the boss 5 away from the bottom wall 1112 along the direction parallel to the bottom wall 1112 of the sounding single body 3.

Wherein, the pad 33 is the pad of flexible circuit board in the sound production monomer 3, this flexible circuit board be used for the electricity connect external circuit with the voice coil loudspeaker voice coil of sound production monomer 3 to make the voice coil loudspeaker voice coil can drive after the circular telegram the vibration sound production of vibrating diaphragm 31, diapire 1112 sets up with vibrating diaphragm 31 relatively and with vibrating diaphragm 31 encloses and closes and form the ante-chamber, the sound that vibrating diaphragm 31 vibration was sent passes through in proper order the ante-chamber with sound outlet 1113 propagates to the external world.

The loudspeaker box still includes soldering lug 7, soldering lug 7 is fixed in including moulding plastics main part 71 of diapire 1112, certainly main part 71 extends to outside the accommodating space and mould plastics and be fixed in the first electric connection portion 73 of diapire 1112, certainly main part 71 is buckled to extend and is formed and mould plastics in second electric connection portion 75 in the boss 5, wherein, first electric connection portion 71 is connected with external circuit electricity, second electric connection portion 75 is in the boss 5 is kept away from diapire 1112 one side exposes, pad 33 is located on the second electric connection portion 75 and with second electric connection portion 75 electricity is connected.

The loudspeaker box further comprises a breathable partition 8 which covers the sound-generating unit 3. The air-permeable partition 8 is located in the rear cavity and includes an air-permeable partition body 81 and an insulating layer 82 coated on the air-permeable partition body 81. The gas-permeable barrier body 81 is a metal mesh, and the insulating layer 82 is a deposition layer formed by dipping, depositing, or spraying an insulating material on the metal mesh. In other embodiments, the raw material of the metal mesh may be formed into the metal mesh after the insulating layer 82 is formed by soaking, depositing or spraying the insulating material.

The breathable insulator body 81 comprises a bottom wall 811 attached to the sound generating unit 3, an extending portion 812 formed by bending and extending the periphery of the bottom wall 811 towards the direction of the diaphragm 31, and a fixing portion 813 formed by bending and extending the extending portion 812 towards the direction far away from the sound generating unit 3; the fixing portion 813 and the retaining wall 1111 are sealed and fixed by sealing glue.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. The utility model provides a loudspeaker box, including the casing that has accommodating space and accept in accommodating space's sound production monomer, the sound production monomer includes the vibrating diaphragm, the vibrating diaphragm will accommodating space separates for antechamber and back chamber, the sound production monomer still is equipped with and is used for the pad of being connected with external circuit electricity, a serial communication port, loudspeaker box still locates including the lid the free ventilative separator of sound production, ventilative separator is located the back chamber, ventilative separator is including ventilative separator body and cladding insulating layer on the ventilative separator body.

2. A loudspeaker enclosure according to claim 1, wherein the air-permeable barrier body is a metal mesh and the insulating layer is formed from an insulating material soaked, sprayed or deposited on the metal mesh.

3. A loudspeaker enclosure according to claim 1, wherein the air-permeable barrier body is of a mesh structure of metallic material, the outer surface of the metallic material being coated with an insulating layer formed of an insulating material impregnated, sprayed or deposited on the metallic material.

4. The loudspeaker box according to claim 2 or 3, wherein the air-permeable isolating piece comprises a bottom wall attached to the sound-generating single body, an extending part formed by bending and extending the periphery of the bottom wall towards the direction of the diaphragm, and a fixing part formed by bending and extending the extending part towards the direction far away from the sound-generating single body; the fixing part is fixedly connected with the shell.

5. The loudspeaker box of claim 4, wherein the housing comprises a front cover and a rear cover assembled with the front cover to form a containing space, the front cover comprises a plastic member and a reinforcing member fixed to the plastic member by injection molding;

the plastic piece comprises a retaining wall, a bottom wall connected with one end of the retaining wall, a sound outlet part protruding out of one side of the retaining wall, and a mounting groove formed by the enclosing of the retaining wall and the bottom wall;

the sound production monomer is fixed in the mounting groove, the fixed part with barricade fixed connection.

6. A loudspeaker enclosure according to claim 5, wherein the reinforcement comprises a body and a plurality of walls extending from the body into the plastics material, the walls enclosing a through-hole filled with the plastics material of the plastics material.