CN211744722U

CN211744722U - Loudspeaker box

Info

Publication number: CN211744722U
Application number: CN202020256629.3U
Authority: CN
Inventors: 童迪江
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-10-23
Anticipated expiration: 2030-03-04
Also published as: WO2021174563A1

Abstract

The utility model provides a loudspeaker box, which comprises a shell with a containing space, a sounding monomer, sound absorption particles and a ventilating separator which are contained in the shell, the sound-producing unit divides the accommodating space into a front cavity and a rear cavity opposite to the front cavity, the shell comprises a top wall opposite to the sound-producing unit and a first through hole arranged on the top wall and communicated with the rear cavity, the sound absorption particles are filled in the rear cavity, the breathable isolating piece seals the first through hole, the top wall is also provided with a blocking part extending towards the rear cavity, the blocking part and the top wall form a ventilation space and a ventilation channel communicated with the ventilation space, the ventilation space is communicated with the first through hole, and has an opening communicating with the rear chamber, the minimum size and the opening size of the air-permeable passage being smaller than the outer diameter of the sound-absorbing particles. The utility model discloses a speaker box guarantees unobstructed that the back chamber leaks, simple structure, and the practicality is strong.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic product field especially relates to a loudspeaker box.

[ 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.

In the related art, the speaker box comprises a lower cover, an upper cover assembled with the lower cover to form an accommodating space and a sounding monomer accommodated in the accommodating space, wherein the sounding monomer and the upper cover enclose a front cavity, the sounding monomer and the lower cover and the upper cover jointly enclose a rear cavity, and the upper cover or the lower cover is provided with a communicating leakage hole between the rear cavity and the outside. The speaker box further includes sound absorbing particles filled in the rear cavity for improving a low frequency of the speaker box. When the sound absorption particles are filled in the rear cavity, the sound absorption particles are directly contacted with the leakage holes, so that the leakage holes are easily blocked and blocked, and the rear cavity is not smooth in leakage due to the fact that the rear cavity is communicated with the outside, so that the performance of the loudspeaker box is influenced.

Therefore, a new speaker box must be provided to solve the above technical problems.

[ Utility model ] content

An object of the utility model is to provide a can guarantee that the rear chamber leaks smooth speaker box in proper order.

In order to achieve the above object, the present invention provides a speaker box, which comprises a housing having an accommodating space, a sound generating unit, sound absorbing particles and a breathable partition member, wherein the sound generating unit, the sound absorbing particles and the breathable partition member are accommodated in the accommodating space of the housing, the sound generating unit separates the accommodating space into a front cavity and a rear cavity opposite to the front cavity, the housing comprises a top wall opposite to the sound generating unit and a first through hole arranged on the top wall and communicated with the rear cavity, the sound absorbing particles are filled in the rear cavity, the rear cavity is communicated with the outside through the first through hole, the breathable partition member seals the first through hole, wherein the top wall is further provided with a blocking portion extending towards the rear cavity, the blocking portion and the top wall form a breathable space and a breathable channel communicated with the breathable space, the breathable space is communicated with the first through hole and has an opening communicated with the rear cavity, the minimum size of the air-permeable passage is smaller than the outer diameter of the sound-absorbing particles, and the opening size is smaller than the outer diameter of the sound-absorbing particles.

Preferably, the blocking portion includes at least two ribs, the at least two ribs protrude from the top wall at intervals, the ventilation space is formed by surrounding the first through hole by a side of the at least two ribs adjacent to the first through hole, the ventilation channel is formed by spacing the adjacent ribs, and the opening is formed by forming an end of the at least two ribs away from the top wall above the ventilation space.

Preferably, the blocking portion includes four ribs, and the four ribs are disposed at equal intervals on the top wall.

Preferably, the housing includes an upper cover and a lower cover, the upper cover and the lower cover are assembled to form the accommodating space, the top wall is disposed on the upper cover, the top wall is provided with a second through hole communicated with the rear cavity, and the sound absorption particles are filled in the rear cavity through the second through hole.

Preferably, the top wall is provided with a first groove and a second groove, the first through hole penetrates through the first groove, the second through hole penetrates through the second groove, the breathable partition is mounted in the first groove, and the loudspeaker box is further provided with a sealing piece mounted in the second groove.

Preferably, the ventilation isolation piece is provided with a third groove, the third groove faces the first groove and is communicated with the first groove, and the third groove corresponds to the first through hole in position.

Preferably, the breathable separator is any one of a non-woven fabric or dust-free mesh fabric, a nylon woven mesh or a metal mesh.

Compared with the prior art, the speaker box provided by the utility model has the advantages that the blocking part surrounding the first through hole is arranged in the top wall of the shell, the blocking part and the top wall form the ventilation space and the ventilation channel communicated with the ventilation space, the ventilation space is communicated with the first through hole and is provided with the opening communicated with the rear cavity, the opening size of the ventilation space is smaller than the outer diameter of the sound-absorbing particles, the minimum size of the ventilation channel is smaller than the outer diameter of the sound-absorbing particles, the sound-absorbing particles can not enter the ventilation space through the opening and/or the ventilation channel to block the sound-absorbing particles, the ventilation space can be communicated with the rear cavity and the first through hole all the time, the sound-absorbing particles can be effectively prevented from contacting or even blocking the first through hole to cause the unsmooth leakage of the rear cavity, the smoothness of the leakage of the rear cavity of the speaker box is ensured, the, the practicability is strong.

[ 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 speaker box of the present invention, which includes an upper cover and a lower cover;

fig. 2 is a schematic perspective view of the upper cover of the speaker box shown in fig. 1;

FIG. 3 is an enlarged schematic view of the upper cover shown in FIG. 2 at location A;

FIG. 4 is an assembled schematic view of the speaker cabinet of FIG. 1;

FIG. 5 is a cross-sectional view of the speaker box of FIG. 4 taken along line B-B of FIG. 4;

fig. 6 is an enlarged schematic view taken along the line C in fig. 5.

[ 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. 1-6, the speaker box 100 according to the present invention includes a housing 11 having an accommodating space, a sound generating unit 12 accommodated in the accommodating space of the housing 11, a ventilation spacer 13, a sealing member 14, and sound absorbing particles 15. The housing 11 includes an upper cover 111 and a lower cover 112, the upper cover 111 and the lower cover 112 are assembled to form the accommodating space, and the sound generating unit 12 is fixed to the upper cover 111 and divides the accommodating space into a front cavity and a rear cavity 113 opposite to the front cavity.

The upper cover 111 comprises a top wall 1111, a side wall 1112 extending from the top wall 1111 along the edge in a bending manner, and a mounting groove 1113 arranged on the top wall 1111, wherein the sounding single body 12 is mounted in the mounting groove 1113 and is opposite to the top wall 1111 and arranged at intervals. The side wall 1112 is abutted against and fixed to the lower cover 112, thereby forming the receiving space. The top wall 1111 is provided with a first recess 1114, a first through hole 1115 penetrating the first recess 1114, a second recess 1116, a second through hole 1117 penetrating the second recess 1116, and a blocking portion 1118, the first recess 1114 and the second recess 1116 are provided on a side of the top wall 1111 away from the rear cavity 113, the blocking portion 1118 is provided on a side of the top wall 1111 close to the rear cavity 113, and the first through hole 1115 and the second through hole 1117 are both communicated with the rear cavity 113. The sound-absorbing particles 15 are filled in the rear cavity 113 through the second through hole 1117 and contained therein, the sound-generating unit 12 leaks out of the speaker box 100 through the first through hole 1115, and the air-permeable partition 13 and the sealing member 14 are respectively installed in the first groove 1114 and the second groove 1116 to respectively close the first through hole 1115 and the second through hole 1117. The air-permeable partition 13 is made of an air-permeable material, so that the rear cavity 113 can leak out of the speaker box 100 through the first through hole 1115, and optionally, the air-permeable partition 13 is any one of damping cloth, non-woven cloth, dust-free mesh cloth, nylon woven mesh, or metal mesh.

Wherein the blocking portion 1118 is used to block the sound-absorbing particles 15 from blocking the first through holes 1115. Specifically, the blocking portion 1118 includes at least two ribs 11181 protruding from the top wall 1111 and extending toward the rear cavity 113, the at least two ribs 11181 and the top wall 1111 enclose an air permeable space 11182 and an air permeable passage 11183 communicating with an air permeable space 11182, an end of the rib 11181 away from the top wall 1111 forms an opening 11184 above the air permeable space 11181, the air permeable passage 11183 further communicates with the rear cavity 113, the air permeable space 11182 communicates with the first through hole 1115 and has an opening 11184 communicating with the rear cavity 1113, and the rib 11181 itself serves to block the sound-absorbing particles 15. The air-permeable space 11182 and the air-permeable passage 11183 formed by the barrier 1118 and the top wall 1111 not only increase the leakage space of the rear chamber 113 but also prevent the leakage of the rear chamber 113 from being obstructed due to the sound-absorbing particles 15 blocking the first through-holes 1115.

In this embodiment, specifically, the blocking portion 1118 is provided with 4 ribs 11181 protruding from the top wall 1111 and spaced apart from each other, the spacing between the 4 ribs 11181 is equal, the side of the 4 ribs 11181 adjacent to the first through hole 1115 is disposed around the first through hole 1115 to form the ventilation space 11182, the adjacent ribs 11181 are spaced apart to form the ventilation channel 11183, the end of the 4 ribs 11181 far away from the top wall 1111 forms an opening 11184, and the side of the rib 11181 near the first through hole 1115 is arc-shaped and tangent to the first through hole 1115.

In order to ensure that the air-permeable space 11182 and the air-permeable passage 11183 are not blocked by the sound-absorbing particles 15, the size of the opening 11184 of the air-permeable space 11182, the smallest dimension of the air-permeable passage 1118, is smaller than the outer diameter of the sound-absorbing particles 15. Specifically, the opening 11184 has a circular shape, and the inner diameter d1 of the opening 11184 is smaller than the outer diameter d3 of the sound-absorbing particles 15; the gas-permeable channel 11183 is trumpet-shaped, and the minimum distance d2 of the gas-permeable channel 11183 is smaller than the outer diameter d3 of the sound-absorbing particles 15.

As shown in fig. 5 and 6, the gas-permeable partition 13 is provided with a third groove 131, and the third groove 131 faces the first groove 1114 and communicates with the first groove 1114, so that the third groove 131 and the first groove 1114 form an auxiliary leakage space 132 communicating with the first through hole 1115, increasing the leakage space of the rear chamber 113. In addition, the third groove 131 corresponds to the first through hole 1115, so that the breathable separator 13 is thinned at the position corresponding to the first through hole 1115, and the breathability of the breathable separator 13 is further increased.

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, its including the shell that has accommodating space, accept in the shell sound production monomer, sound absorption granule and ventilative separator in the accommodating space, sound production monomer will accommodating space separates into the antechamber and with the relative back chamber in antechamber, the shell include with on the relative roof of sound production monomer and locate the roof and with the first through-hole of back chamber intercommunication, sound absorption granule fill in the back chamber, the back chamber passes through first through-hole and external intercommunication, ventilative separator seals first through-hole, its characterized in that: the roof still is equipped with the court the stopper that the back chamber extends, the stopper with the roof forms ventilative space and with the ventilative passageway of ventilative space intercommunication, ventilative space with first through-hole intercommunication, and have with the opening of back chamber intercommunication, ventilative passageway's minimum dimension is less than the external diameter of sound absorption granule, the opening size is less than the external diameter of sound absorption granule.

2. The speaker cabinet as claimed in claim 1, wherein the blocking portion includes at least two ribs protruding from the top wall in a spaced relationship, the ventilation space is formed around the first through hole by a side of the at least two ribs adjacent to the first through hole, the ventilation passage is formed by the adjacent ribs in a spaced relationship, and the opening is formed above the ventilation space by an end of the at least two ribs remote from the top wall.

3. A loudspeaker enclosure according to claim 2, wherein the barrier comprises four ribs, the four ribs being equally spaced from the top wall.

4. The loudspeaker box of claim 1, wherein the enclosure comprises an upper cover and a lower cover, the upper cover and the lower cover are assembled to form the accommodating space, the top wall is arranged on the upper cover, the top wall is provided with a second through hole communicated with the rear cavity, and the sound absorption particles are filled in the rear cavity through the second through hole.

5. A loudspeaker enclosure according to claim 4, wherein the top wall is provided with a first recess and a second recess, the first through hole passing through the first recess and the second through hole passing through the second recess, the breathable partition being mounted in the first recess, the loudspeaker enclosure further being provided with a seal mounted in the second recess.

6. A loudspeaker enclosure according to claim 5, wherein the air-permeable partition is provided with a third recess facing and communicating with the first recess, the third recess corresponding to the position of the first through-hole.

7. A loudspeaker enclosure according to claim 1, 5 or 6, wherein the air permeable barrier is any one of a non-woven or dust-free mesh, a woven nylon mesh or a metal mesh.