CN110166908B - Sounding device - Google Patents
Sounding device Download PDFInfo
- Publication number
- CN110166908B CN110166908B CN201910428743.1A CN201910428743A CN110166908B CN 110166908 B CN110166908 B CN 110166908B CN 201910428743 A CN201910428743 A CN 201910428743A CN 110166908 B CN110166908 B CN 110166908B
- Authority
- CN
- China
- Prior art keywords
- sound
- top wall
- upper cover
- wall
- vibrating diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000000178 monomer Substances 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The invention provides a sound production device, which comprises an upper cover, a lower cover and a sound production monomer, wherein the lower cover and the upper cover are enclosed to form an accommodating space, the sound production monomer is accommodated in the accommodating space, the sound production monomer is provided with a vibrating diaphragm, the upper cover comprises a top wall facing the vibrating diaphragm and a side wall, extending from the top wall to the direction close to the vibrating diaphragm, of the fixed sound production monomer, the upper cover is provided with a sound outlet, the top wall, the side wall and the vibrating diaphragm are enclosed to form a front cavity, the upper cover further comprises a sunken part sunken from the top wall to the direction far away from the vibrating diaphragm, the sunken part comprises a first surface facing the vibrating diaphragm and a second surface connecting the first surface and the top wall, the first surface extends to the sound outlet from the second surface to the sound outlet, and the second surface stretches from one. In the invention, the air pressures at two sides of the front cavity area between the sound generating single ball top and the upper cover are effectively dredged, so that the pressure intensity at each position in the front cavity is balanced, and the problem of vibration of the vibrating diaphragm can be improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of electroacoustic, and particularly relates to a sounding device.
[ background of the invention ]
With the rapid development of science and technology, in the rapid development process of audio equipment, people have stronger and stronger requirements on the functionality of products, and more people have higher requirements on the audio performance and the like of sound production devices. In the related art, the heights of the ball top of the sound generating device and the upper cover are consistent, so that the air pressure of the front cavity between the ball top and the upper cover is unbalanced, and the vibration membrane of the sound generating device is severely swung.
[ summary of the invention ]
The invention aims to provide a sound production device, and aims to solve the problem that a vibrating diaphragm swings due to unbalanced air pressure in a front cavity of the sound production device in the prior art.
The technical scheme of the invention is as follows: a sounding device comprises an upper cover, a lower cover which forms a containing space with the upper cover in a surrounding way, and a sounding monomer contained in the containing space, the sound generating unit is provided with a vibrating diaphragm, the upper cover comprises a top wall facing the vibrating diaphragm and a side wall extending from the top wall to the direction close to the sound generating unit and used for fixing the sound generating unit, the upper cover is provided with sound outlet holes, the top wall, the side wall and the vibrating diaphragm are encircled to form a front cavity, the upper cover further comprises a concave part which is concave from the top wall to a direction far away from the diaphragm, the concave part comprises a first surface facing the diaphragm and a second surface connecting the first surface and the top wall, the first surface extends to the sound outlet hole from the second surface in the direction of the sound outlet hole, and the second surface crosses from one of the side walls to the other opposite side wall.
Further, the upper cover further includes a protrusion protruding from the top wall toward a direction close to the diaphragm, the protrusion includes a third surface facing the diaphragm and a fourth surface connecting the top wall and the third surface, the third surface extends from the fourth surface to one of the sidewalls opposite to the sound outlet in a direction away from the sound outlet, and the fourth surface crosses from one of the sidewalls to the other of the sidewalls opposite to the sound outlet.
Further, the top wall surface is a plane, the first surface and the third surface are parallel to the top wall, and the second surface and the fourth surface are perpendicular to the top wall.
Furthermore, the sound production monomer, the upper cover and the lower cover enclose a rear cavity opposite to the front cavity, one side of the top wall far away from the sound outlet hole is provided with an annular partition wall extending towards the direction of the rear cavity, the bottom end face of the partition wall is fixed with a first ventilation partition, and the first ventilation partition, the partition wall and the top wall enclose a containing cavity for filling sound absorption materials.
Further, the roof still is provided with the intercommunication hold the chamber and external environment's opening, opening department lid is equipped with the gasket, the gasket is sealed the opening.
Further, the upper cover is further provided with a leakage hole, the leakage hole is communicated with the rear cavity and the external environment, and a second breathable isolating piece is arranged on the upper cover of the leakage hole.
Further, the sounding device further comprises a gasket, and the gasket is clamped between the bottom of the sounding monomer and the lower cover.
Furthermore, the sounding device further comprises a dustproof spacer attached to the outer side of the sounding hole.
Furthermore, the sounding device is further connected with a flexible circuit board with a connecting end and an inserting end, the sounding unit is electrically connected with the connecting end of the flexible circuit board, and the inserting end of the flexible circuit board is fixedly connected with the bottom wall of the lower cover.
The invention has the beneficial effects that: according to the invention, the upper cover is provided with the sunken part sunken from the top wall to the direction far away from the vibrating diaphragm, and the distance from the first surface of the sunken part to the sound-producing single ball top is greater than the distance from the top wall to the sound-producing single ball top, so that the air pressure on two sides of the front cavity area between the sound-producing single ball top and the upper cover can be effectively guided, the pressure intensity in each front cavity is balanced, and the problem of the vibrating diaphragm swinging can be improved.
[ description of the drawings ]
Fig. 1 is an exploded schematic view of a sound device according to a first embodiment of the present invention;
fig. 2 is a schematic view of an overall structure of a sound generating device according to a first embodiment of the present invention;
3 FIG. 3 3 3 is 3 a 3 schematic 3 view 3 of 3 a 3 cut 3- 3 away 3 of 3 the 3 plane 3 A 3- 3 A 3 in 3 FIG. 3 2 3; 3
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
fig. 5 is a schematic view of an overall structure of a sounding device according to a second embodiment of the present invention;
FIG. 6 is a sectional view taken along the plane B-B in FIG. 5;
FIG. 7 is an enlarged schematic view of portion C of FIG. 6;
fig. 8 is a schematic view of the upper cover structure in fig. 5.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
As shown in fig. 1 to 4, a sound-generating device according to a first embodiment of the present invention includes an upper cover 1, a lower cover 2 enclosing with the upper cover 1 to form an accommodating space 50, and a sound-generating unit 3 accommodated in the accommodating space 50, where the sound-generating unit 3 has a diaphragm 31, the upper cover 1 includes a top wall 12 facing the diaphragm 31 and a side wall 13 extending from the top wall 12 to a direction close to the diaphragm 31 and fixing the sound-generating unit 3, the upper cover 1 is provided with a sound-generating hole 11, and the top wall 12, the side wall 13 and the diaphragm 31 enclose to form a front cavity 4.
In the above embodiment, as shown in fig. 3 and 4, the upper cover 1 further includes a concave portion 14 that is concave from the top wall 12 toward a direction away from the diaphragm 31, the concave portion 14 includes a first surface 141 facing the diaphragm 31 and a second surface 142 connecting the first surface 141 and the top wall 12, the first surface 141 extends from the second surface 142 to the sound outlet 11 in a direction toward the sound outlet 11, and the second surface 142 crosses from one of the side walls 13 to the other opposite side wall 13. Because the height of the first surface 141 in the vertical direction is higher than the top wall 12, and the distance between the first surface 141 and the sound generating unit 3 is greater than the distance between the top wall 12 and the sound generating unit 3, the air pressure at two sides of the area of the front cavity 4 between the sound generating unit 3 and the upper cover 1 can be effectively guided, so that the pressure inside the front cavity 4 is balanced, and the problem of the swinging of the diaphragm 31 can be improved. Preferably, the surface of the top wall 12 is a plane, the first surface 141 is parallel to the top wall 12, and the second surface 141 is perpendicular to the top wall 12.
In addition, the sound generating unit 3, the upper cover 1 and the lower cover 2 enclose a rear cavity 5 opposite to the front cavity 4, that is, in the present embodiment, the sound generating unit 3 divides the accommodating space 50 into the front cavity 4 and the rear cavity 5, and the rear cavity 5 can be used for improving the acoustic performance of the sound generating apparatus. The side of the top wall 12 far away from the sound outlet hole 11 is provided with a partition wall 18 extending towards the direction of the rear cavity 5, the partition wall 18 is arranged in a surrounding manner, the bottom end face of the partition wall 18 is fixed with a first breathable partition member 20, and the first breathable partition member 20, the partition wall 18 and the top wall 12 surround to form an accommodating cavity 6 for filling sound absorption materials. The top wall 12 is further provided with an opening 16 for communicating the accommodating cavity 6 with the external environment, the opening 16 is covered with a sealing sheet 30, and the sealing sheet 30 seals the opening 16. The accommodating cavity 6 is used for accommodating sound absorption materials, forms a virtual sound cavity, and improves the acoustic performance of the sound production device through the virtual sound cavity. In order to facilitate the filling of the sound-absorbing material into the housing chamber 6, the sound-absorbing material may be filled into the housing chamber 6 through the opening portion 16, and then the opening portion 16 is sealed with the sealing member 30, which does not cause the powdered sound-absorbing material to overflow to the outside. In addition, the upper cover 1 is also provided with a leakage hole 17, the leakage hole 17 is communicated with the rear cavity 5 and the external environment, and the upper cover of the leakage hole 17 is provided with a second breathable isolating piece 40. The rear chamber 5 may be internally balanced in air pressure by the leakage hole 17 and the second air-permeable partition 40.
The sounding device further comprises a gasket 8, the gasket 8 is clamped between the bottom of the sounding monomer 3 and the lower cover 2, and the gasket 8 can inhibit shell resonance caused by the sounding monomer 3 during working, so that the performance of the product can be improved. The sounding device further comprises a dustproof spacer 7 attached to the outer side of the sounding hole 11. In addition, the sounding device is further connected with a flexible circuit board 9 with a connecting end 91 and an inserting end 92, the sounding unit 3 is electrically connected with the connecting end 91 of the flexible circuit board 9, the inserting end 92 of the flexible circuit board 9 is fixedly connected with the bottom wall of the lower cover 2, and the flexible circuit board 9 is used for connecting the sounding unit 3 with an external circuit.
As shown in fig. 5 to 8, a sounding device according to a second embodiment of the present invention is provided. The upper cover 1 further includes a protrusion 15 protruding from the top wall 12 toward a direction close to the diaphragm 31, the protrusion 15 includes a third surface 151 facing the diaphragm 31 and a fourth surface 152 connecting the top wall 12 and the third surface 151, the third surface 151 extends from the fourth surface 152 to one of the sidewalls 13 opposite to the sound outlet 11 in a direction away from the sound outlet 11, and the fourth surface 152 crosses from one of the sidewalls 13 to the other opposing sidewall 13. The protrusion 15 further changes the space inside the front chamber 5, the air pressure inside the front chamber 5 is further evacuated, and the internal pressure is more balanced. Preferably, the surface of the top wall 12 is planar, the third surface 151 is parallel to the top wall 12, and the fourth surface 152 is perpendicular to the top wall 12. Except for the above structure, the other structures of the second embodiment are the same as those of the first embodiment, and are not described herein again.
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 (8)
1. A sounding device comprises an upper cover, a lower cover which forms a containing space with the upper cover in a surrounding way, and a sounding monomer contained in the containing space, the sound generating unit is provided with a vibrating diaphragm, the upper cover comprises a top wall facing the vibrating diaphragm and a side wall extending from the top wall to the direction close to the sound generating unit and used for fixing the sound generating unit, the upper cover is provided with sound outlet holes, the top wall, the side wall and the vibrating diaphragm are encircled to form a front cavity, characterized in that the upper cover also comprises a concave part which is concave from the top wall to the direction far away from the diaphragm, the recess comprises a first surface facing the diaphragm and a second surface connecting the first surface and the top wall, the first surface extends to the sound outlet hole from the second surface in the direction of the sound outlet hole, and the second surface crosses from one of the side walls to the other opposite side wall;
the upper cover further comprises a protrusion protruding from the top wall toward a direction close to the diaphragm, the protrusion comprises a third surface facing the diaphragm and a fourth surface connecting the top wall and the third surface, the third surface extends from the fourth surface to one of the side walls opposite to the sound outlet in a direction away from the sound outlet, and the fourth surface crosses from one of the side walls to the other of the side walls opposite to the sound outlet.
2. The sound device of claim 1, wherein the top wall surface is planar, the first and third surfaces are parallel to the top wall, and the second and fourth surfaces are perpendicular to the top wall.
3. The sound production device as claimed in any one of claims 1 to 2, wherein the sound production unit, the upper cover and the lower cover enclose a rear cavity opposite to the front cavity, an annular partition wall extending towards the rear cavity is disposed on a side of the top wall away from the sound outlet, a bottom end face of the partition wall is fixed with a first air-permeable partition, and the first air-permeable partition, the partition wall and the top wall enclose a containing cavity for filling sound absorption material.
4. The sound production device of claim 3, wherein the top wall further comprises an opening communicating the receiving cavity with the environment, the opening being covered by a sealing sheet, the sealing sheet sealing the opening.
5. The sounder device according to claim 3, wherein said cover further defines a vent hole, said vent hole communicating said rear cavity with the environment, said vent hole having a second vent spacer disposed thereon.
6. The sound-producing device according to any one of claims 1-2, wherein the sound-producing device further comprises a spacer sandwiched between the bottom of the sound-producing monomer and the lower cover.
7. The sound-producing device of any one of claims 1-2, further comprising a dust-proof spacer attached to the outside of the sound-emitting hole.
8. The sound-generating device according to any one of claims 1 to 2, wherein a flexible circuit board having a connecting end and a plugging end is further connected to the sound-generating device, the sound-generating unit is electrically connected to the connecting end of the flexible circuit board, and the plugging end of the flexible circuit board is fixedly connected to the bottom wall of the lower cover.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428743.1A CN110166908B (en) | 2019-05-22 | 2019-05-22 | Sounding device |
| PCT/CN2019/088315 WO2020232728A1 (en) | 2019-05-22 | 2019-05-24 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428743.1A CN110166908B (en) | 2019-05-22 | 2019-05-22 | Sounding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110166908A CN110166908A (en) | 2019-08-23 |
| CN110166908B true CN110166908B (en) | 2021-06-15 |
Family
ID=67631887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910428743.1A Expired - Fee Related CN110166908B (en) | 2019-05-22 | 2019-05-22 | Sounding device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110166908B (en) |
| WO (1) | WO2020232728A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212812010U (en) * | 2020-06-30 | 2021-03-26 | 瑞声科技(新加坡)有限公司 | Sound production device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204350291U (en) * | 2015-02-03 | 2015-05-20 | 歌尔声学股份有限公司 | Loud speaker module |
| CN204392555U (en) * | 2015-03-02 | 2015-06-10 | 歌尔声学股份有限公司 | Loud speaker module |
| CN206524962U (en) * | 2017-01-22 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN206524921U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108810769A (en) * | 2018-08-03 | 2018-11-13 | 瑞声光电科技(常州)有限公司 | Loud speaker module |
| CN208479940U (en) * | 2018-01-26 | 2019-02-05 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
| CN109743647A (en) * | 2018-12-27 | 2019-05-10 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4569821B2 (en) * | 2005-07-20 | 2010-10-27 | ソニー株式会社 | Electroacoustic transducer and method for forming diaphragm thereof |
| CN103686550B (en) * | 2013-11-18 | 2017-09-29 | 歌尔股份有限公司 | Loudspeaker module |
| CN205726375U (en) * | 2016-06-27 | 2016-11-23 | 奥音科技（北京）有限公司 | Mini-sound device |
| CN106101955B (en) * | 2016-07-20 | 2019-10-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN106101954A (en) * | 2016-07-20 | 2016-11-09 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure and there is the electronic equipment of this loudspeaker enclosure |
-
2019
- 2019-05-22 CN CN201910428743.1A patent/CN110166908B/en not_active Expired - Fee Related
- 2019-05-24 WO PCT/CN2019/088315 patent/WO2020232728A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204350291U (en) * | 2015-02-03 | 2015-05-20 | 歌尔声学股份有限公司 | Loud speaker module |
| CN204392555U (en) * | 2015-03-02 | 2015-06-10 | 歌尔声学股份有限公司 | Loud speaker module |
| CN206524921U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN206524962U (en) * | 2017-01-22 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN208479940U (en) * | 2018-01-26 | 2019-02-05 | 瑞声光电科技(常州)有限公司 | Loudspeaker enclosure |
| CN108810769A (en) * | 2018-08-03 | 2018-11-13 | 瑞声光电科技(常州)有限公司 | Loud speaker module |
| CN109743647A (en) * | 2018-12-27 | 2019-05-10 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110166908A (en) | 2019-08-23 |
| WO2020232728A1 (en) | 2020-11-26 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 |
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