CN110035354B

CN110035354B - Loudspeaker box

Info

Publication number: CN110035354B
Application number: CN201811636843.5A
Authority: CN
Inventors: 刘晓东
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2021-01-15
Anticipated expiration: 2038-12-29
Also published as: CN110035354A

Abstract

The invention provides a loudspeaker box. The speaker box include the epitheca, with the epitheca cooperation forms accommodating space's inferior valve and accept in speaker monomer in the accommodating space, speaker monomer is including the vibrating diaphragm that is used for the vibration sound production, the vibrating diaphragm with the epitheca interval sets up the formation antechamber, the vibrating diaphragm with the epitheca reaches the inferior valve encloses into the postcavity jointly, the speaker box is still including being located the postcavity and with epitheca fixed connection's ventilative separator, ventilative separator encloses and establishes into one end open-ended and holds the chamber, hold the chamber with the postcavity intercommunication, hold the intracavity with the epitheca forms sealed chamber, sealed intracavity is filled and is inhaled the sound granule. The air-permeable isolating piece in the loudspeaker box directly encloses the accommodating cavity for accommodating the sound-absorbing particles, so that the contact area of the air-permeable isolating piece and the sound-absorbing particles is increased, and the space of the rear cavity is not occupied.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of electroacoustic conversion, in particular to a loudspeaker box.

[ background of the invention ]

With the rapid development of mobile communication technology in recent years, consumers increasingly use mobile communication devices with voice functions, such as: portable telephones, handheld game devices, portable computers, and the like. The loudspeaker box is used as a voice playing device, and the design of the loudspeaker box directly influences the voice performance of a mobile communication equipment product. In order to meet the market demand for a thinner and higher sound quality, a higher demand is placed on the design of the speaker box.

In the related art, the upper shell of the speaker box comprises four side retaining walls, the ventilation isolation piece is packaged in a manner that mesh cloth is firstly combined with the upper shell in a hot melting or injection molding mode, the mesh cloth is matched with the four side retaining walls and the upper shell to form a packaging area, and sound absorption particles are filled into the through holes of the upper shell and then are sealed by a PET cover plate. Inhale the sound granule from this and only this face in screen cloth plane of contact surface that holds the chamber, simultaneously because the four sides barricade has taken the rear chamber space, not only reduced the rear chamber volume, still reduced the encapsulation volume of inhaling the sound granule simultaneously, reduced the encapsulation and inhaled sound granule quantity.

Therefore, there is a need to provide a new speaker box to solve the above-mentioned drawbacks.

[ summary of the invention ]

The invention aims to overcome the technical problems and provide a loudspeaker box which can effectively increase the contact area of a breathable isolating piece and sound-absorbing particles and enlarge the volume of a rear cavity.

In order to achieve the above object, the present invention provides a speaker box, including an upper shell, a lower shell matching with the upper shell to form an accommodating space, and a speaker unit accommodated in the accommodating space, where the speaker unit includes a vibrating diaphragm for vibrating and sounding, the vibrating diaphragm and the upper shell are arranged at an interval to form a front cavity, the vibrating diaphragm, the upper shell and the lower shell together enclose a rear cavity, the speaker box further includes a breathable partition member located in the rear cavity and fixedly connected to the upper shell, the breathable partition member encloses an accommodating cavity with an opening at one end, the accommodating cavity is communicated with the rear cavity, the accommodating cavity and the upper shell form a sealed cavity, and the sealed cavity is filled with sound-absorbing particles.

Preferably, the upper case includes a top wall disposed opposite to the diaphragm at an interval, a side wall bent and extended from an edge of the top wall toward a direction close to the diaphragm, a support wall extended from the top wall toward the direction close to the diaphragm and used for supporting the speaker unit, and a positioning portion extended from the top wall toward the direction close to the breathable partition, and the breathable partition is fixedly connected to the top wall and is limited to the positioning portion.

Preferably, the edge of the open end of the breathable partition member is bent and extended in the direction away from the accommodating cavity to form a flange, and the flange is fixedly connected with the top wall and limited in the positioning part.

Preferably, the breathable partition piece comprises a bottom surface and a side surface, wherein the bottom surface is arranged in parallel with the top wall at intervals, the side surface is bent and extends from the edge of the bottom surface to the direction close to the top wall, the bottom surface is matched with the side wall to enclose the accommodating cavity, and the flanging is formed by bending one end, far away from the bottom surface, of the side surface to the direction far away from the accommodating cavity.

Preferably, the top wall includes a sound outlet disposed at a position corresponding to the position of the diaphragm, and the sound outlet is communicated with the front cavity and is used for transmitting sound to the outside.

Preferably, the roof still include with the through-hole that ventilative isolator position corresponds the setting, the through-hole with hold the chamber intercommunication, be used for with inhale the sound granule filling in hold the intracavity.

Preferably, the speaker box further includes a sealing sheet mounted to the top wall and completely covering the through hole, the sealing sheet being ultrasonically sealed to the top wall.

Compared with the prior art, in the loudspeaker box provided by the invention, the air-permeable isolating piece directly encloses an accommodating cavity for accommodating sound-absorbing particles, so that the contact area between the air-permeable isolating piece and the sound-absorbing particles is increased; meanwhile, the breathable partition is made of mesh cloth, has small thickness and good flexibility, does not occupy the space of the rear cavity, can adapt to the contact surfaces of other devices in the loudspeaker box and the breathable partition, and improves the utilization rate of the accommodating space of the loudspeaker box.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

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

FIG. 2 is an exploded view of the speaker cabinet of FIG. 1;

FIG. 3 is another angular schematic view of the upper housing of FIG. 2;

fig. 4 is a cross-sectional view of the loudspeaker enclosure shown in fig. 1, taken along the line a-a.

[ 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a speaker box 100, where the speaker box 100 includes an upper shell 1, a lower shell 2, a speaker unit 3 with a diaphragm 31, a breathable spacer 4, a sealing sheet 5, a front cavity 10, a rear cavity 20, and an accommodating cavity 30, and the breathable spacer 4 encloses the accommodating cavity 30 with an open end.

The upper shell 1 is used for bearing and protecting the loudspeaker single bodies 3, the lower shell 2 is arranged on the upper shell 1 in a covering mode and matched with the upper shell 1 to form an accommodating space, and the loudspeaker single bodies 3 are accommodated in the accommodating space. The vibrating diaphragm 31 is used for vibrating and sounding, the upper shell 1 and the vibrating diaphragm 31 are arranged at intervals to form the front cavity 10, and the vibrating diaphragm 31 is matched with the upper shell 1 and the lower shell 2 to form the rear cavity 20.

The upper shell 1 includes a top wall 11 disposed opposite to the diaphragm 31 at an interval, a side wall 12 extending from an edge of the top wall 11 to a direction close to the diaphragm 31, a support wall 13 extending from the top wall 11 to a direction close to the diaphragm 31 and used for supporting the speaker unit 3, and a positioning portion 14 extending from the top wall 11 to a direction close to the air-permeable partition 4.

The top wall 11 includes a sound outlet 111 corresponding to the position of the diaphragm 31 and a through hole 112 corresponding to the position of the air-permeable spacer 4. The sound outlet 111 is communicated with the front cavity 10 and is used for conducting sound to the outside; the through holes 112 are communicated with the accommodating cavity 30, and are used for filling the sound-absorbing particles in the accommodating cavity 30.

The whole supporting wall 13 is of a rectangular annular structure, and the loudspeaker single body 3 is fixedly connected with the supporting wall 13 through gluing.

The positioning portion 14 is used for positioning the breathable separator 4 during installation, so as to improve the accuracy of the installation position of the breathable separator 4 and improve the production efficiency. In this embodiment, three sides of the positioning portion 14 are respectively connected to the side wall 12, and the other side is connected to the supporting wall 13, so as to ensure the maximum volume of the accommodating cavity 30, increase the number of the sound-absorbing particles, and improve the acoustic performance of the speaker box 100, in other embodiments, the positioning portion 14 may be further disposed at an interval from the side wall 12 or the supporting wall 13.

The ventilation isolation part 4 is fixedly connected with the top wall 11 and limited in the positioning part 14. The breathable partition 4 is made of mesh cloth, and includes a bottom surface 41 parallel to the top wall 11 and spaced apart from the top wall, a side surface 42 extending from the edge of the bottom surface 41 to a direction close to the top wall 11, and a flange 43 extending from one end of the side surface 42 far away from the bottom surface 41 to a direction far away from the accommodating cavity 30. The bottom surface 41 reaches the side 42 cooperation encloses to become hold the chamber 30, it is one end open-ended structure to hold the chamber 30, turn-ups 43 with roof 11 fixed connection forms sealed chamber, the sound granule is inhaled in the packing of sealed intracavity, and is specific, turn-ups 43 with roof 11 is fixed through gluing. Further, the shape of the turned-over edge 43 matches with that of the positioning portion 14, and the turned-over edge 43 is limited by the positioning portion 43.

It can be understood that the bottom surface 41 and the side surface 42 of the air-permeable partition 4 are both in contact with the sound-absorbing particles, so that the contact area is increased, meanwhile, the air-permeable partition 4 is made of mesh cloth, so that the air-permeable partition has better flexibility, and can adapt to the contact surface between other devices in the speaker box 100 and the air-permeable partition 4, so as to improve the utilization rate of the accommodating space, meanwhile, the mesh cloth has smaller thickness, does not occupy the space of the rear cavity 20, increases the volume of the rear cavity 20, and effectively improves the acoustic performance of the speaker box 100.

The sealing sheet 5 is attached to the top wall 11 and completely covers the through hole 112, forming a seal with the through hole 112. Preferably, the sealing piece 5 is made of a PTE material, and the sealing piece 5 is ultrasonically sealed with the top wall 11.

Compared with the prior art, in the loudspeaker box 100 provided by the invention, the air-permeable partition 4 directly encloses the accommodating cavity 30 for accommodating the sound-absorbing particles, so that the contact area between the air-permeable partition 4 and the sound-absorbing particles is increased; meanwhile, the breathable partition piece 4 is made of mesh cloth, has small thickness and good flexibility, does not occupy the space of the rear cavity 20, can adapt to the contact surfaces of other devices in the loudspeaker box 100 and the breathable partition piece 4, and improves the utilization rate of the accommodating space of the loudspeaker box 100.

While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.

Claims

1. A loudspeaker box comprises an upper shell, a lower shell and a loudspeaker single body, wherein the lower shell is matched with the upper shell to form an accommodating space, the loudspeaker single body is accommodated in the accommodating space, the loudspeaker single body comprises a vibrating diaphragm for vibrating and sounding, the vibrating diaphragm and the upper shell are arranged at intervals to form a front cavity, and the vibrating diaphragm, the upper shell and the lower shell jointly enclose a rear cavity; the upper shell comprises a top wall and a positioning part, wherein the top wall is arranged opposite to the vibrating diaphragm at an interval, the positioning part extends from the top wall to the direction close to the breathable isolating piece, the edge of the opening end of the breathable isolating piece is bent and extends to the direction far away from the accommodating cavity to form a flanging, and the flanging is fixedly connected with the top wall and is limited in the positioning part.

2. A loudspeaker enclosure according to claim 1, wherein the upper shell further comprises a side wall extending from an edge of the top wall in a direction close to the diaphragm, and a support wall extending from the top wall in a direction close to the diaphragm and for supporting the speaker unit.

3. The loudspeaker box of claim 2, wherein the air-permeable partition comprises a bottom surface arranged parallel to the top wall at a spacing and a side surface extending from the edge of the bottom surface to the direction close to the top wall in a bending manner, the bottom surface and the side surface are matched to enclose the accommodating cavity, and the flange is formed by bending the end of the side surface far away from the bottom surface to the direction far away from the accommodating cavity.

4. A loudspeaker enclosure as claimed in claim 2, wherein the top wall comprises a sound outlet arranged corresponding to the position of the diaphragm, the sound outlet communicating with the front chamber for conducting sound to the outside.

5. The loudspeaker box of claim 2, wherein the top wall further comprises a through hole corresponding to the position of the breathable partition, and the through hole is communicated with the accommodating cavity and used for filling the sound-absorbing particles in the accommodating cavity.

6. A loudspeaker enclosure according to claim 5, wherein the enclosure further comprises a sealing sheet mounted to the top wall and completely covering the through-opening, the sealing sheet being ultrasonically sealed to the top wall.