CN109714676B - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
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- CN109714676B CN109714676B CN201811650374.2A CN201811650374A CN109714676B CN 109714676 B CN109714676 B CN 109714676B CN 201811650374 A CN201811650374 A CN 201811650374A CN 109714676 B CN109714676 B CN 109714676B
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- leakage
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- auxiliary
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Abstract
The invention discloses a loudspeaker box, which comprises a lower cover, an upper cover, a sound generating monomer, an auxiliary leakage part with a ventilating space and sound absorbing particles, wherein the sound generating monomer, the lower cover and the upper cover jointly enclose a rear cavity, the sound generating monomer comprises a side surface and a leakage hole, and the leakage hole leaks from the side surface; the auxiliary leakage part completely covers the leakage hole, the auxiliary leakage part comprises a support and a breathable isolating piece, the support comprises a bottom wall, a side wall and a breathable hole communicated with the breathable space, the support is abutted against the sounding single body and enables the breathable hole to be communicated with the leakage hole, the breathable isolating piece is covered and fixed on the side wall and encloses the breathable space together with the bottom wall and the side wall, and the breathable space is communicated with the rear cavity through air; the sound-absorbing particles are located outside the auxiliary leakage portion. Compared with the related art, the loudspeaker box has good reliability and excellent acoustic performance.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to an electroacoustic device, and more particularly, to a speaker box for a portable electronic device.
[ 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 a lower cover, an upper cover and a sounding single body, wherein the upper cover and the lower cover are assembled to form an accommodating space, the sounding single body and the upper cover enclose a front cavity, and the sounding single body, the lower cover and the upper cover together enclose a rear cavity; in order to increase the low-frequency acoustic performance of the loudspeaker box, an auxiliary sound cavity for filling sound absorption particles to serve as a DBASS virtual sound cavity is formed in the rear cavity in a separated mode, such as a mode that a single body is fully filled through mesh cloth or a mode that a plug board is used for separating.
However, in the speaker box of the related art, the mesh cloth covers the monomer and is fully filled, so that the leakage holes of the monomer are not smooth to vent, the audio performance is lost, and the reliability is poor; and the plugboard partition mode makes the rear cavity not be fully and effectively utilized because the plugboard occupies the rear cavity space, so that the improvement of acoustic performance cannot be maximized.
Therefore, it is necessary to provide a new speaker box to solve the above technical problems.
[ summary of the invention ]
The invention aims to provide a loudspeaker box with excellent acoustic performance and good reliability.
In order to achieve the above object, the present invention provides a speaker box, which includes a lower cover, an upper cover enclosing with the lower cover to form an accommodation space, a sounding unit accommodated in the accommodation space and used for vibration sounding, an auxiliary leakage portion arranged in the rear cavity and having a ventilation space, and sound-absorbing particles filled in the rear cavity, wherein the sounding unit and the upper cover enclose a front cavity, the sounding unit, the lower cover and the upper cover together enclose a rear cavity, the sounding unit is provided with a leakage hole communicating an inner cavity thereof with the rear cavity, the sounding unit includes a side surface, the leakage hole is leaked from the side surface, the auxiliary leakage portion completely covers the leakage hole and communicates the ventilation space with the leakage hole, the auxiliary leakage portion includes a support and a ventilation spacer, the support includes a bottom wall, a side wall bent and extended from a periphery of the bottom wall along the vibration direction to form an annular shape, and a side wall penetrating through the side wall and communicating with the side wall The support is abutted against the sounding monomer, completely covers the leakage hole and is communicated with the leakage hole, the breathable isolating piece is covered and fixed on one side of the side wall, which is far away from the bottom wall, and encloses the breathable space together with the bottom wall and the side wall, and the breathable space is communicated with the rear cavity air; the sound-absorbing particles are located outside the auxiliary leakage portion.
Preferably, the support is rectangular, and the air holes are formed in the side wall parallel to the short axis of the support.
Preferably, the side wall is formed by bending and extending the periphery of the bottom wall towards the lower cover.
Preferably, the air holes are formed in the bottom wall.
Preferably, the leakage hole includes two and is located respectively the free relative both sides of sound production, supplementary leakage part includes two and is located respectively the free relative both sides of sound production, two supplementary leakage part respectively with two leak the hole intercommunication.
Preferably, the sounding unit is rectangular, the two leakage holes are respectively located on two opposite sides of the short shaft of the sounding unit, and the auxiliary leakage parts are respectively located on two opposite sides of the short shaft of the sounding unit.
Preferably, the breathable isolating piece is a mesh cloth, and the breathable isolating piece and the support are fixed in a gluing mode.
Preferably, the breathable isolating piece and the bracket are integrally formed by injection molding.
Preferably, the bottom wall and the upper cover are parallel and spaced.
Preferably, the sounding unit comprises a basin frame which is supported on the upper cover and is surrounded by a basin frame side wall, and a magnetic yoke which is at least partially fixed on the basin frame side wall, wherein at least part of the magnetic yoke and the basin frame side wall are spaced along the vibration direction to form the leakage hole.
Preferably, the speaker box still including run through irritate the powder hole that the upper cover set up with be fixed in upper cover and lid are established irritate the sealed lid in powder hole, irritate the powder hole with the back chamber intercommunication, inhale the sound granule by irritate the powder hole and irritate into the back chamber.
Compared with the prior art, the loudspeaker box is provided with the auxiliary leakage part with the ventilation space in the rear cavity, the auxiliary leakage part is positioned on the side surface of the sounding monomer and completely covers the leakage hole of the sounding monomer, the leakage hole is communicated with the ventilation space, the ventilation isolating piece for auxiliary leakage is covered and fixed on the side wall of the bracket, the sound-absorbing particles are filled in the rear cavity, the sound-absorbing particles are blocked outside the auxiliary leakage part through the ventilation isolating piece, the leakage area of the leakage hole is increased through the auxiliary leakage part, the problem that the leakage hole of the sounding monomer is blocked by the sound-absorbing particles to cause unsmooth air pressure leakage is avoided, and the sounding reliability is improved; simultaneously, the back intracavity is passed through the full filling structure of isolation realization of supplementary leakage portion, the filling volume of inhaling the sound granule is bigger for back intracavity utilizes maximization, effectively improves the acoustic performance of speaker 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 partial perspective structure of FIG. 1;
FIG. 3 is an assembled view of a partial perspective structure of the speaker box of the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 1;
fig. 5 is an enlarged view of a portion B shown in fig. 4.
[ 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. 1-5, the present invention provides a speaker box 100, which includes a lower cover 1, an upper cover 2, a sound generating unit 3, an auxiliary leakage portion 4, and sound absorbing particles (not shown).
The lower cover 1 and the upper cover 2 are matched together to form an accommodating space 10.
The sounding single body 3 is accommodated in the accommodating space 10. The sound generating single body 3 and the upper cover 2 are spaced to form a front cavity 101. The sounding unit 3 is used for vibrating and sounding. The sounding monomer 3, the lower cover 1 and the upper cover 2 jointly enclose a rear cavity 102 for improving low-frequency acoustic performance.
The sounding monomer 3 is provided with a leakage hole 31 for communicating the inner cavity thereof with the rear cavity 102, and is used for transmitting sound pressure to the rear cavity 102 to increase low-frequency acoustic performance. In the present embodiment, the sounding unit 31 includes a side surface from which the leakage hole 31 leaks.
Specifically, the sounding unit 3 includes support in the basin frame 32 that is enclosed by basin frame lateral wall 321 of upper cover 2 and at least part are fixed in the yoke 33 of basin frame lateral wall 321, yoke 33 at least part with basin frame lateral wall 321 follows the vibration direction interval is in order to form leak hole 31, Z axle direction interval in fig. 3 promptly, thereby make leak hole 31 by the side leakage of sounding unit 31, its leakage direction is along as X axle direction in fig. 3 promptly.
In this embodiment, the two leakage holes 31 are respectively located on two opposite sides of the sounding unit 3, so as to improve the sound pressure balance reliability of the sounding unit 3.
Preferably, the sounding unit 3 is rectangular, and the two leakage holes 31 are respectively located on two opposite sides of the short shaft of the sounding unit 3. The auxiliary leakage part 4 can extend along the long axis direction, and the reliability is better.
The auxiliary leakage part 4 is disposed in the rear cavity 102, and has an air-permeable space 20 therein, and the auxiliary leakage part 4 completely covers the leakage hole 31 and communicates the air-permeable space 20 with the leakage hole 31.
Specifically, the auxiliary leakage portion 4 includes a holder 41 and a gas-permeable partition 42. The bracket 41 includes a bottom wall 411, a side wall 412 extending from the periphery of the bottom wall 411 in a ring shape along the vibration direction, and a vent 413 penetrating the side wall 412 and communicating with the vent space 20. In the present embodiment, the bottom wall 411 is parallel to and spaced apart from the upper cover 2. The vibration direction refers to the vibration direction of the sounding unit 3. The side wall 412 is formed by bending and extending the periphery of the bottom wall 411 towards the direction of the lower cover 1; of course, the side wall 412 may be formed by bending and extending the periphery of the bottom wall 411 toward the upper cover 2.
The air-permeable partition 42 is fixed on one side of the side wall 412 far away from the bottom wall 411 in a covering manner, and encloses the air-permeable space 20 together with the bottom wall 411 and the side wall 412. The support 41 abuts against the sounding unit 3 and completely covers the leakage hole 31, and the air hole 413 is communicated with the leakage hole 31.
That is, in the speaker box 100 of the present invention, the auxiliary leakage portion 4 is laterally arranged only in the X-axis or Y-axis direction, and the projection of the auxiliary leakage portion 4 in the X-axis or Y-axis direction perpendicular to the Z-axis vibration direction and the sounding unit 3 falls within the range of the sounding unit 3. In this embodiment, the side wall 412 is formed by bending and extending the periphery of the bottom wall 411 in the direction of the lower cover 1, that is, the bracket 41 is disposed at a distance from the lower cover 1, and one surface of the bracket 41 close to the lower cover 1 is ventilated through the ventilation spacer 42; of course, when the peripheral edge of the bottom wall 411 is formed by bending and extending toward the upper cover 2, the side wall 412 may be disposed at an interval between the bracket 1 and the upper cover 2, and one surface of the bracket 41 close to the upper cover 2 is ventilated through the ventilation spacer 42. The structure of above two kinds of embodiments all can make supplementary leakage portion 4 will inhale the sound granule isolation and realize full filling structure, inhale the filling volume of sound granule bigger, and low frequency acoustic performance is more excellent. The air flow of the speaker box 100 flows into the air-permeable space 20 through the leakage hole 31 of the sound generating unit 3, and then flows toward the rear cavity 102 through the air-permeable partition 42, and the air flow direction is shown by arrows in fig. 4 and 5.
In this embodiment, the bracket 41 has a rectangular shape, and the ventilation holes 413 are formed in the side wall 411 parallel to the short axis of the bracket 41. This structure increases the leakage space of the leakage hole 31 in the auxiliary leakage portion 4 in the long axis direction (X axis direction in fig. 3), and the design space is larger.
The quantity of supplementary leak portion 4 with leak the hole 31 and match, promptly supplementary leak portion 4 includes two and is located respectively the relative both sides of sound production monomer 3, two supplementary leak portion 4 respectively with two leak the hole 31 intercommunication. Namely, the two auxiliary leakage parts 4 are respectively positioned at two sides of the short shaft of the sounding unit 3, and the two auxiliary leakage parts 4 are respectively positioned at two opposite sides of the short shaft of the sounding unit 3.
In this embodiment, the air-permeable partition 42 is a mesh. The air-permeable isolating piece 42 and the bracket 41 are fixed by gluing. Of course, the air-permeable partition 42 and the bracket 41 may be formed integrally by injection molding.
The sound-absorbing particles are filled in the rear cavity 102 for enhancing the low-frequency acoustic performance. In this embodiment, inhale the sound particle and be located the supplementary 4 outsides of leakage portion, promptly supplementary leakage portion 4 will inhale the sound particle package in the back chamber 102 and make inhale the sound particle with leak the hole 31 isolation, avoided the leakage hole 31 quilt of sound production monomer 3 inhale the sound particle jam and cause atmospheric pressure to leak unsmoothly, increased simultaneously leak the leakage space of hole 31, improved the sound production reliability. The air-permeable space 20 is in air communication with the rear cavity 102, and the air communication means that the air-permeable space 20 and the rear cavity 102 can flow in an exchange manner, and the sound-absorbing particles in the rear cavity 102 cannot enter the air-permeable space 20 through the air-permeable partition 42. The auxiliary leakage part 4 encapsulates the sound absorption particles in the rear cavity 102 to form a D-BASS virtual sound cavity for improving the low-frequency acoustic performance of the loudspeaker box 100, and the structure can enable the rear cavity 102 to realize a full-filling structure, so that the rear cavity 102 is maximally utilized, and the low-frequency acoustic performance is effectively improved. In the present embodiment, the sound absorbing particles are zeolite particles.
Specifically, in this embodiment, the upper cover 2 is provided with a powder filling hole 21 communicated with the rear cavity 102, the sound-absorbing particles are filled into the rear cavity 102 through the powder filling hole 21, and then the powder filling hole 21 is covered and sealed through a sealing cover 22. Of course, it is also possible that the powder filling hole 21 is opened in the lower cover 1.
Compared with the prior art, the loudspeaker box is provided with the auxiliary leakage part with the ventilation space in the rear cavity, the auxiliary leakage part is positioned on the side surface of the sounding monomer and completely covers the leakage hole of the sounding monomer, the leakage hole is communicated with the ventilation space, the ventilation isolating piece for auxiliary leakage is covered and fixed on the side wall of the bracket, the sound-absorbing particles are filled in the rear cavity, the sound-absorbing particles are blocked outside the auxiliary leakage part through the ventilation isolating piece, the leakage area of the leakage hole is increased through the auxiliary leakage part, the problem that the leakage hole of the sounding monomer is blocked by the sound-absorbing particles to cause unsmooth air pressure leakage is avoided, and the sounding reliability is improved; simultaneously, the back chamber passes through the isolation of supplementary leakage portion can realize full filling structure, the filling volume of inhaling the sound granule is bigger for the back chamber utilizes maximization, effectively improves the acoustic performance of speaker box.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A loudspeaker box comprises a lower cover, an upper cover and a sound production unit, wherein the upper cover and the lower cover form an accommodating space, the sound production unit is accommodated in the accommodating space and used for vibration sound production, the sound production unit and the upper cover form a front cavity in a surrounding mode, the sound production unit, the lower cover and the upper cover form a rear cavity in a surrounding mode, the sound production unit is provided with a leakage hole which communicates the inner cavity of the sound production unit with the rear cavity, the sound production unit comprises a side face, and the leakage hole is leaked from the side face; the auxiliary leakage part completely covers the leakage hole and enables the ventilation space to be communicated with the leakage hole, the auxiliary leakage part comprises a support and a ventilation isolating piece, the support comprises a bottom wall, a side wall which is bent and extends from the periphery of the bottom wall along the vibration direction to form an annular shape and ventilation holes which penetrate through the side wall and are communicated with the ventilation space, the bottom wall is respectively parallel to the upper cover and the lower cover and is arranged at intervals, the support is abutted against the sounding single body and completely covers the leakage hole, the ventilation holes are communicated with the leakage hole, the ventilation isolating piece is covered and fixed on one side of the side wall, which is far away from the bottom wall, and encloses the ventilation space together with the bottom wall and the side wall, and the ventilation space is communicated with the rear cavity air; the sound-absorbing particles are located outside the auxiliary leakage portion.
2. A loudspeaker enclosure according to claim 1, wherein the frame is rectangular and the vents are formed in the side walls parallel to the minor axis of the frame.
3. The speaker cabinet as claimed in claim 1, wherein the side wall is formed by bending and extending the periphery of the bottom wall toward the lower cover.
4. The speaker box according to claim 1, wherein the leakage holes include two and are respectively located at two opposite sides of the sounding unit, the auxiliary leakage portions include two and are respectively located at two opposite sides of the sounding unit, and the two auxiliary leakage portions are respectively communicated with the two leakage holes.
5. The speaker box according to claim 4, wherein the sounding unit has a rectangular shape, two of the leakage holes are respectively located at two opposite sides of the short axis of the sounding unit, and two of the auxiliary leakage portions are respectively located at two opposite sides of the short axis of the sounding unit.
6. A loudspeaker enclosure according to claim 1, wherein the air-permeable partition is a mesh, and the air-permeable partition is fixed to the support by gluing.
7. A loudspeaker enclosure according to claim 6, wherein the breathable partition is injection moulded in one piece with the support.
8. The speaker cabinet of claim 1, wherein the sound generating unit includes a frame supported by the upper cover and surrounded by frame side walls, and a yoke at least partially fixed to the frame side walls, the yoke being at least partially spaced from the frame side walls in the vibration direction to form the leakage hole.
9. The speaker box of claim 1, further comprising a powder filling hole formed through the upper cover and a sealing cover fixed to the upper cover and covering the powder filling hole, wherein the powder filling hole is communicated with the rear cavity, and the sound-absorbing particles are filled into the rear cavity through the powder filling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650374.2A CN109714676B (en) | 2018-12-31 | 2018-12-31 | Loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650374.2A CN109714676B (en) | 2018-12-31 | 2018-12-31 | Loudspeaker box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109714676A CN109714676A (en) | 2019-05-03 |
| CN109714676B true CN109714676B (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811650374.2A Expired - Fee Related CN109714676B (en) | 2018-12-31 | 2018-12-31 | Loudspeaker box |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211321501U (en) * | 2020-01-09 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN211531241U (en) * | 2020-01-09 | 2020-09-18 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN112153500B (en) * | 2020-08-27 | 2022-03-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN112153501B (en) * | 2020-08-27 | 2024-04-02 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box |
| CN113473351B (en) * | 2021-06-28 | 2023-04-25 | 歌尔股份有限公司 | Speaker module, processing technology of isolation mesh assembly and electronic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068230A (en) * | 2018-08-10 | 2018-12-21 | 瑞声科技（南京）有限公司 | Loudspeaker enclosure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206433106U (en) * | 2017-01-12 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| KR102282417B1 (en) * | 2017-01-16 | 2021-07-27 | 주식회사 이어브릿지 | High quality electro-magnetic speaker with improved air gap accuracy |
| CN207251897U (en) * | 2017-08-21 | 2018-04-17 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN108462906A (en) * | 2018-01-05 | 2018-08-28 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN207869352U (en) * | 2018-01-29 | 2018-09-14 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN108235198B (en) * | 2018-02-24 | 2020-02-18 | 歌尔股份有限公司 | Loudspeaker module and electronic equipment |
| CN108989944B (en) * | 2018-08-03 | 2021-02-19 | 瑞声光电科技(常州)有限公司 | Loudspeaker box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068230A (en) * | 2018-08-10 | 2018-12-21 | 瑞声科技（南京）有限公司 | Loudspeaker enclosure |
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