CN212628258U

CN212628258U - Loudspeaker box

Info

Publication number: CN212628258U
Application number: CN202021108917.0U
Authority: CN
Inventors: 丁健华; 吴树文
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-02-26
Anticipated expiration: 2030-06-15
Also published as: WO2021253536A1

Abstract

The utility model provides a loudspeaker box, which comprises a lower cover, an upper cover, a sounding monomer and a ventilating separator; the sound generating unit comprises a magnetic circuit system, the upper cover comprises an upper cover body covered on the lower cover, a supporting wall and a fixing wall, the supporting wall and the fixing wall are convexly extended towards the lower cover from the upper cover body, and the sound generating unit is supported and fixed on the supporting wall; the breathable isolating piece is positioned between the sound-producing single body and the lower cover, the breathable isolating piece comprises a main body part and an extension wall, the main body part is covered on the sound-producing single body and is arranged at an interval with the lower cover, the extension wall is bent and extended from the periphery of the main body part to the support wall, the extension wall is inserted between the fixed wall and the sound-producing single body and is arranged around the periphery of the sound-producing single body, and glue is applied between the extension wall and the fixed wall for fixing, so that the breathable isolating piece divides the accommodating space into a; the back intracavity is filled with and inhales the sound granule, and ventilative isolator will inhale the sound granule and encapsulate in the back intracavity. Compared with the prior art, the utility model discloses a speaker box low frequency acoustic performance is excellent, and assembly efficiency is high.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic conversion equipment technical 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.

The loudspeaker box in the related art comprises an upper cover, a lower cover, a sounding single body, an annular bracket and a ventilating isolation assembly, wherein the lower cover and the upper cover are assembled to form an accommodating space; ventilative isolation component is including fixing the upper cover encircles the support that the sound production monomer set up with be located sound production monomer with ventilative separator between the lower cover, the periphery of ventilative separator is fixed in the support, the sound production monomer reaches ventilative isolation component will jointly accommodating space separates for antechamber and back chamber to but realize the full canned structure of back intracavity.

However, in the speaker box of the related art, the bracket and the upper cover are assembled and glued, and then the breathable isolating piece is assembled and glued to the bracket, so as to realize the above-mentioned full-filling sound-generating single-body isolating scheme. The structure has more assembling and gluing steps, and the assembling and production efficiency is seriously influenced.

Therefore, it is necessary 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 speaker box that low frequency acoustic performance is excellent and assembly efficiency is high.

In order to achieve the above object, the present invention provides a speaker box, which comprises a lower cover, an upper cover covering the lower cover and enclosing an accommodating space, a sounding unit and a ventilating partition accommodated in the accommodating space; the upper cover comprises an upper cover body covered on the lower cover and a supporting wall which is convexly extended towards the lower cover from the upper cover body, the sound production single body is supported and fixed on the supporting wall, the upper cover also comprises a fixed wall which is arranged on the peripheral side of the sound production single body and extends towards the lower cover in a protruding way, the breathable isolating piece is positioned between the sounding single body and the lower cover and comprises a main body part which is covered on the sounding single body and is arranged at an interval with the lower cover and an extending wall which is bent and extended from the periphery of the main body part to the supporting wall, the extension wall is inserted between the fixed wall and the sounding single body and is arranged around the periphery of the sounding single body, gluing the extending wall and the fixing wall to form fixation so that the air-permeable isolating piece divides the accommodating space into a front cavity and a rear cavity; the rear cavity is filled with sound-absorbing particles, and the sound-absorbing particles are packaged in the rear cavity by the breathable partition piece.

Preferably, the extension wall abuts against the support wall.

Preferably, the speaker box still includes the circuit board, circuit board one end with the fixed electricity of sound production monomer is connected, and its other end warp the back chamber extends to outside the accommodating space, the fixed wall is equipped with by its one end that is close to the lower cover to support the sunken groove of stepping down that forms of wall direction, the circuit board warp the groove of stepping down extends, extend the wall butt in the circuit board.

Preferably, the circuit board including be located fixed wall with first section between the sound production monomer, by the relative both ends of first section to the sound production monomer extend and with the sound production monomer forms electric connection's second section and by first section is to keeping away from the third section that the sound production monomer extends, the third section warp the groove of stepping down runs through the upper cover extends to outside the accommodating space, extend the wall butt in first section.

Preferably, the upper cover is further provided with a support wall protruding and extending from the outer side of the upper cover, and the third section is attached to the support wall.

Preferably, one side of the supporting wall close to the third section is provided with a positioning column, the third section is provided with a positioning hole penetrating through the third section, and the positioning column is inserted into the positioning hole.

Preferably, the speaker box further includes a support member fixed to the sound generating unit near the main body portion, and the main body portion abuts against the support member.

Preferably, the sounding unit includes a magnetic circuit system, and the supporting member is attached to a side of the magnetic circuit system close to the main body.

Preferably, the support member includes two first support portions disposed opposite to each other at an interval and a second support portion connecting the two first support portions.

Preferably, the speaker box further comprises a powder filling hole penetrating through the upper cover and/or the lower cover, and a sealing cover covering the powder filling hole.

Compared with the prior art, the utility model discloses a loudspeaker box will sound production monomer support be fixed in support wall and ventilative separator is located between sound production monomer and the lower cover, ventilative separator including the lid locate sound production monomer and with the main part that the lower cover interval set up and by the periphery of main part to the extension wall that the support wall is buckled and is extended, the upper cover includes by the support wall to the protruding fixed wall that extends of lower cover direction, the extension wall insert locate between fixed wall and the sound production monomer and encircle the week side setting of sound production monomer, thereby it is fixed to beat to glue between extension wall and the fixed wall form thereby ventilative separator will accommodating space separates into front chamber and back chamber; above-mentioned structure then makes ventilative separator keep away from the rear chamber of sound production monomer one side can all be filled and inhale the sound granule as virtual sound chamber, and the filling efficiency of the sound granule of inhaling of very big degree improvement rear chamber has effectively improved the low frequency acoustic performance of speaker box, simultaneously, beats to glue through the fixed wall and forms fixedly because of ventilative separator, the fixed wall still as location portion in order to realize quick location and veneer, has effectively improved production efficiency.

[ 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 a schematic perspective view of a speaker box according to the present invention;

fig. 2 is an exploded schematic view of a part of the three-dimensional structure of the speaker box of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 1;

fig. 4 is an exploded schematic view of another part of the speaker box according to the present invention.

[ 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. 1-4, the present invention provides a speaker box 100, which includes a lower cover 1, an upper cover 2, a sound generating unit 3 and a ventilation spacer 4. The lower cover 1 is arranged on the upper cover 2 in a covering mode and jointly forms an accommodating space 10, and the sounding single bodies 3 and the breathable isolating pieces 4 are accommodated in the accommodating space 10.

Specifically, the upper cover 2 includes an upper cover body 21 covering the lower cover 1, an annular support wall 22 protruding from the upper cover body 21 in the direction of the lower cover 1, a sound guide channel 23 formed in the upper cover body 21, and a fixing wall 24 protruding from the outer periphery of the support wall 22 in the direction of the lower cover 1.

The sounding single body 3 is accommodated in the accommodating space 10 and supported on the upper cover 2. The sounding unit 3 includes a vibration system 31 and a magnetic circuit system 32 providing a driving force to drive the vibration system 31 to vibrate and generate sound.

The sounding single body 3 is supported and fixed on the supporting wall 22, and the fixing wall 24 is arranged on the peripheral side of the sounding single body 3. In this embodiment, the periphery of the sound generating unit 3 is fixed to the support wall 22 by gluing.

The ventilating partition 4 is accommodated in the accommodating space 10 and is located between the sounding single body 3 and the lower cover 1.

Ventilative barrier member 4 is located including the lid sound production monomer 3 and with the main part 41 that 1 interval of lower cover set up and by the periphery of main part 41 to the extension wall 42 that the support wall 22 is buckled and is extended, extension wall 42 is inserted and is located fixed wall 24 with between the sound production monomer 3 and encircle sound production monomer 3's week side sets up, just extension wall 42 with beat to glue between the fixed wall 24 and form fixedly, thereby ventilative barrier member 4 will accommodating space 10 separates into front chamber 101 and back chamber 102. Namely ventilative separator 4 forms spatial structure, and will sound production monomer 3 with back chamber 102 is separated, prevents to inhale sound granule 5 and gets into sound production monomer 3 from back chamber 102 inside and influence the sound production performance, the effectual sound production reliability that has improved loudspeaker box 100.

The front cavity 101 is used for sound production, and the sound guide channel 23 forms the front cavity 101 into a side sound production structure. The rear cavity 102 is filled with sound-absorbing particles 5, and the air-permeable partition 4 encapsulates the sound-absorbing particles 5 in the rear cavity 102 to form a DBASS virtual sound cavity for further improving low-frequency acoustic performance.

Specifically, the vibration system 31 and the upper cover body 21 form a front sound cavity 6 at an interval, and the sound guide channel 23 communicates the front sound cavity 6 with the outside and forms the front cavity 101 together, so as to form a side sound production structure. The rear cavity 102 is enclosed by the breathable partition 4, the upper cover 2 and the lower cover 1 together, and is used for improving low-frequency acoustic performance.

The structure enables the breathable partition piece 4 to be far away from the rear cavity 102 on one side of the sounding monomer 3, and the sound absorption particles 5 can be completely filled in the rear cavity 102 to serve as a D-BASS virtual sound cavity, so that the filling efficiency of the sound absorption particles 5 in the rear cavity 102 is greatly improved, and the low-frequency acoustic performance of the loudspeaker box 100 is effectively improved. Meanwhile, the breathable partition 4 is glued through the fixing wall 24 to form fixation, and the fixing wall 24 is also used as a positioning part to realize rapid positioning and gluing, so that the production efficiency is effectively improved.

In the present embodiment, the extension wall 42 abuts against the support wall 22. Namely, the extension wall 42 is fixed in the step formed by the support wall 22 and the fixing wall 24 by gluing, so that the positioning and fixing effects are better, and the reliability of the sounding device 100 is better.

The speaker box 100 further includes a circuit board 7, one end of the circuit board 7 is fixedly and electrically connected to the sound generating unit 3, and the other end of the circuit board 7 extends to the outside of the accommodating space 10 through the rear cavity 102, so that the sound generating unit 3 introduces an external electrical signal.

In order to cooperate with the assembly of the circuit board 7, the fixing wall 24 is provided with an abdicating groove 242 formed by the recess of one end of the fixing wall close to the lower cover 1 toward the supporting wall 22, the circuit board 7 extends through the abdicating groove 242 and further extends to the outside of the accommodating space 10, and the extending wall 42 abuts against the circuit board 7.

Specifically, the circuit board 7 includes a first section 71 located between the fixing wall 24 and the sound generating unit 3, a second section 72 extending from two opposite ends of the first section 71 to the sound generating unit 3 and electrically connected to the sound generating unit 3, and a third section 73 extending from the first section 71 to a position far away from the sound generating unit 3, wherein the third section 73 is used for connecting an external electrical signal.

The third section 73 passes through the receding groove 242 and extends out of the accommodating space 10 through the upper cover 2, and the extending wall 42 abuts against the first section 71.

In this embodiment, the upper cover 2 is further provided with a support wall 25 protruding from the outer side thereof, and the third section 73 is attached to the support wall 25, so as to support the third section 73 and facilitate connection with an external electrical signal source.

Preferably, a positioning column 251 is arranged on one side of the supporting wall 25 close to the third section 73, the third section 73 is provided with a positioning hole 731 penetrating through the third section, and the positioning column 251 is inserted into the positioning hole 731 to position the third section 73, so that on one hand, the assembly efficiency is improved, on the other hand, the third section 73 is prevented from moving, and the stability of signal connection with an external power supply is improved.

Further, the speaker box 100 further includes a support member 8 fixed to the sounding unit 3 near the main body portion 41, and the main body portion 41 abuts against the support member 8. The support member 8 forms a support for the main body portion 41, so that the air-permeable partition 4 is structurally stable, the filling effect of filling the sound-absorbing particles 5 in the rear cavity 102 is improved, and the acoustic performance is further improved.

In the present embodiment, the support member 8 is attached to the magnetic circuit system 32 on the side closer to the main body 41.

Specifically, the supporting member 8 includes two first supporting portions 81 disposed opposite to each other at an interval and a second supporting portion 82 connecting the two first supporting portions 81, so as to form an i-shaped structure, and the supporting effect is better. For example, the first supporting portions 81 are disposed opposite to each other at intervals in parallel with the long axis of the sounding unit 3, and the second supporting portions 82 are disposed in parallel with the short axis of the sounding unit 3.

The loudspeaker box 100 is further provided with a powder filling hole 9 and a sealing cover 91 covering the powder filling hole 9, wherein the powder filling hole 9 is communicated with the rear cavity 102 and is used for filling the sound absorption particles 5 into the rear cavity 102.

As shown in fig. 2, the powder filling holes 9 include at least two holes, and are respectively disposed on the upper cover 2 and the lower cover 1.

Of course, the powder filling hole 9 is not limited to the above manner, and may be separately disposed, that is, only on the upper cover 2 or only on the lower cover 1.

Compared with the prior art, the loudspeaker box of the utility model fixes the sound production monomer support on the supporting wall and makes the breathable partition part located between the sound production monomer and the lower cover, the two jointly divide the containing space into a front cavity and a rear cavity, the breathable partition part comprises a main body part arranged on the sound production monomer and arranged at an interval with the lower cover and an extending wall extending from the periphery of the main body part to the supporting wall in a bending way, the extending wall surrounds the periphery of the sound production monomer, the upper cover comprises a fixed wall extending from the periphery of the supporting wall to the direction of the lower cover in a protruding way, the extending wall is glued and fixed with the fixed wall, the structure enables the rear cavity of the breathable partition part far away from one side of the sound production monomer to be completely filled with sound absorption particles as a virtual sound cavity, thereby greatly improving the filling efficiency of the sound absorption particles of the rear cavity, the low frequency acoustic performance of speaker box has effectively been improved, simultaneously, because of ventilative separator forms fixedly through the fixed wall veneer, the fixed wall still fixes a position in order to realize quick location and veneer as location portion, has effectively improved production efficiency.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A loudspeaker box comprises a lower cover, an upper cover, a sound production single body and a ventilation isolating piece, wherein the upper cover is covered on the lower cover and jointly forms an accommodating space; the upper cover comprises an upper cover body covered on the lower cover and a supporting wall which is convexly extended towards the lower cover from the upper cover body, the sound production single body is supported and fixed on the supporting wall, the upper cover also comprises a fixed wall which is arranged on the peripheral side of the sound production single body and extends towards the lower cover in a protruding way, it is characterized in that the breathable isolating piece is positioned between the sounding single body and the lower cover, the breathable isolating piece comprises a main body part which is covered on the sounding single body and is arranged at an interval with the lower cover and an extending wall which is bent and extended from the periphery of the main body part to the supporting wall, the extension wall is inserted between the fixed wall and the sounding single body and is arranged around the periphery of the sounding single body, gluing the extending wall and the fixing wall to form fixation so that the air-permeable isolating piece divides the accommodating space into a front cavity and a rear cavity; the rear cavity is filled with sound-absorbing particles, and the sound-absorbing particles are packaged in the rear cavity by the breathable partition piece.

2. A loudspeaker enclosure according to claim 1, wherein the extension wall abuts the support wall.

3. The speaker box of claim 1, further comprising a circuit board, wherein one end of the circuit board is electrically connected to the sound generating unit, and the other end of the circuit board extends out of the accommodating space through the rear cavity, the fixing wall is provided with a recess formed by recessing the end of the fixing wall close to the lower cover toward the supporting wall, the circuit board extends through the recess, and the extending wall abuts against the circuit board.

4. The speaker box of claim 3, wherein the circuit board includes a first section located between the fixing wall and the sound generating unit, a second section extending from opposite ends of the first section to the sound generating unit and forming an electrical connection with the sound generating unit, and a third section extending from the first section to a position far away from the sound generating unit, wherein the third section passes through the avoiding groove and penetrates through the upper cover to extend to the outside of the accommodating space, and the extending wall abuts against the first section.

5. The speaker box as claimed in claim 4, wherein the top cover further has a support wall protruding from the outer side of the top cover, and the third section is attached to the support wall.

6. The speaker box as claimed in claim 5, wherein a positioning post is disposed on a side of the supporting wall near the third section, the third section has a positioning hole passing therethrough, and the positioning post is inserted into the positioning hole.

7. The speaker box of claim 1, further comprising a supporting member stacked and fixed on one side of the sound generating unit close to the main body portion, wherein the main body portion abuts against the supporting member.

8. A loudspeaker enclosure according to claim 7, wherein the sound generating unit includes a magnetic circuit system, and the support member is attached to a side of the magnetic circuit system adjacent to the main body portion.

9. A loudspeaker enclosure according to claim 7, wherein the support member comprises two first support portions arranged in spaced opposed relation and a second support portion connecting the two first support portions.

10. The speaker box of claim 1, further comprising a powder filling hole formed through the upper cover and/or the lower cover, and a sealing cover covering the powder filling hole.