CN110572743A - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
- Publication number
- CN110572743A CN110572743A CN201910581632.4A CN201910581632A CN110572743A CN 110572743 A CN110572743 A CN 110572743A CN 201910581632 A CN201910581632 A CN 201910581632A CN 110572743 A CN110572743 A CN 110572743A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- flexible circuit
- sealing
- side wall
- lid
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 229920000742 Cotton Polymers 0.000 claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000012790 adhesive layer Substances 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 18
- 239000006260 foam Substances 0.000 claims description 11
- 210000003205 muscle Anatomy 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
Abstract
The invention provides a loudspeaker box which comprises a shell, a sound production device, a flexible circuit board, a cover body and an elastic cotton block, wherein the cover body and the shell are covered to form a first notch part corresponding to the flexible circuit board, the elastic cotton block comprises a first sealing part and a second sealing part, the first sealing part is clamped and fixed between the cover body and the flexible circuit board, and the second sealing part is clamped and fixed between the shell and the cover body. The elastic cotton block has certain deformation characteristics, so that the elastic cotton block clamped by the cover body and the shell can realize good sealing effect. By adopting the sealing mode of the invention, glue dispensing does not need to be carried out by glue, thus improving the manual efficiency, saving the glue dispensing space and improving the appearance of the outlet position of the flexible circuit board.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of electroacoustic conversion, in particular to a loudspeaker box.
[ background of the invention ]
The functions of the current smart devices, especially mobile terminals such as mobile phones, are very diverse, one of them is a high-quality music function, and therefore, speaker boxes for playing sound are widely applied to the current smart mobile devices.
The speaker box of the related art includes a housing, a sound generating device housed in the housing, a PFC and cover sound generating device housed in the housing, and a cover body of an FPC.
At present generally adopt the sealed lid and casing of sealed with ultrasonic welding, simultaneously, for the convenience of FPC stretches out, casing and lid all break off at FPC exit position and form the notch. When the cover body and the shell are sealed, glue is needed to be used for dispensing and sealing a gap between the FPC and the notch of the cover body. However, this method has slow operation efficiency, poor appearance effect and large occupied space.
therefore, there is a need for a loudspeaker enclosure that does not require external glue for sealing.
[ summary of the invention ]
The invention aims to provide a loudspeaker box which does not need glue dispensing and sealing at the outlet position of an FPC (flexible printed circuit), has high sealing operation efficiency, good appearance effect and small occupied space.
the technical scheme of the invention is as follows: the utility model provides a loudspeaker box, including the casing, with the casing encloses into accommodating space's lid, accept in sound production device and part in accommodating space accept in flexible circuit board in the accommodating space, the lid with the casing lid closes to form and corresponds flexible circuit board's first breach portion, loudspeaker box is still including filling first breach portion is pressed from both sides and is located the lid with elastic cotton piece between the flexible circuit board, elastic cotton piece is located including pasting flexible circuit board's first sealing and certainly the second sealing that extends at first sealing both ends, first sealing presss from both sides and establishes and is fixed in the lid with between the flexible circuit board, second sealing presss from both sides and establishes and is fixed in the casing with between the lid.
further, the lid include with the relative diapire that sets up of casing and certainly diapire marginal orientation the lateral wall that the casing was buckled and is extended, the lateral wall include with casing fixed connection's first lateral wall and with second sealing fixed connection's second lateral wall, it has first welding muscle to extend on the first lateral wall, it has second welding muscle to extend on the second lateral wall, the casing with the lid passes through first welding muscle fixed connection, the second sealing with the second lateral wall passes through second welding muscle is sealed fixed.
further, the side wall includes a third side wall, the third side wall and the second side wall together form a first gap portion, and the first sealing portion is clamped and fixed between the flexible circuit board and the third side wall.
further, the second side wall is bent and extended from the edge of the first side wall along the second sealing part.
Further, after the cover body is welded through ultrasonic waves, the second sealing portion and the first welding rib are fixed in a welding mode.
Furthermore, the elastic cotton block comprises a first adhesive layer fixedly connected with the flexible circuit board and foam fixed on the surface of the flexible circuit board, and the first adhesive layer is far away from the foam.
furthermore, the elastic cotton block also comprises a second adhesive layer which is overlapped on the surface of the foam layer far away from the first adhesive layer.
furthermore, the elastic cotton block is foam cotton rubber which is easy to compress.
Further, the first sealing portion comprises a clamping portion clamped between the third side wall and the flexible circuit board and a transition portion connected between the clamping portion and the second sealing portion, and the transition portion is clamped between the flexible circuit board and the second side wall.
The invention has the beneficial effects that:
According to the loudspeaker box, the elastic cotton block is embedded in a gap between the flexible circuit board and the first notch, the first sealing part is clamped and fixed between the cover body and the flexible circuit board, and the second sealing part is clamped and fixed between the shell and the cover body. Because the elastic cotton block has certain deformation characteristics, the elastic cotton block clamped by the cover body and the shell can realize good sealing effect. By adopting the sealing mode of the invention, glue dispensing does not need to be carried out by glue, thus improving the manual efficiency, saving the glue dispensing space and improving the appearance of the outlet position of the flexible circuit board.
[ description of the drawings ]
Fig. 1 is a schematic perspective view of a speaker box according to an embodiment of the present invention;
FIG. 2 is an exploded view of the loudspeaker enclosure of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the loudspeaker enclosure of FIG. 1 taken along section line a-a;
FIG. 4 is an enlarged view of the area A of the loudspeaker enclosure of FIG. 3;
FIG. 5 is a schematic perspective view of the elastic cotton block of the speaker box shown in FIG. 1;
Fig. 6 is a schematic perspective view of a cover of the speaker box shown in fig. 1;
FIG. 7 is an enlarged view of the area of cover B shown in FIG. 6;
Fig. 8 is a schematic perspective view of a speaker box according to a second embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of the loudspeaker enclosure of FIG. 8 taken along section line b-b;
FIG. 10 is an enlarged view of the area C of the loudspeaker enclosure of FIG. 9;
Fig. 11 is a schematic perspective view of the elastic cotton block of the speaker box shown in fig. 8.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
The first embodiment is as follows:
Referring to fig. 1 to 4, a speaker box according to the present embodiment is shown, which includes a housing 1, a cover 2 enclosing with the housing 1 to form an accommodating space, a sound device 3 accommodated in the accommodating space, a flexible circuit board 4 partially accommodated in the accommodating space, and an elastic cotton block 5.
The cover body 2 and the shell body 1 are covered to form a first gap portion corresponding to the flexible circuit board 4, and the elastic cotton block 5 is filled in the first gap portion and clamped between the cover body 2 and the flexible circuit board 4.
Referring to fig. 5, the elastic cotton block 5 includes a first sealing portion 51 attached to the flexible circuit board 4 and a second sealing portion 52 extending from two ends of the first sealing portion 51. The first sealing portion 51 is interposed and fixed between the cover 2 and the flexible circuit board 4, and the second sealing portion 52 is interposed and fixed between the case 1 and the cover 2.
Referring to fig. 6 and 7, the cover 2 includes a bottom wall opposite to the housing 1 and a side wall extending from an edge of the bottom wall toward the housing 1. The sidewalls include a first sidewall 21 fixedly connected to the case 1, a second sidewall 22 fixedly connected to the second sealing portion 52, and a third sidewall 23.
The first side wall 21 of the cover 2 has a first welding rib 211 extending thereon, and the second side wall 22 has a second welding rib 221 extending thereon. The case 1 and the cover 2 are fixedly connected by the first welding rib 211, and the second sealing portion 52 and the second side wall 22 are fixed by the second welding rib 221 in a sealing manner. The third side wall 23 and the second side wall 22 together form a first notch portion, and the first sealing portion 51 is sandwiched and fixed between the flexible circuit board 4 and the third side wall 23.
The first sealing portion 51 includes a clamping portion 511 interposed between the third side wall 23 and the flexible circuit board 4, and a transition portion 512 connecting the clamping portion 511 and the second sealing portion 52, where the transition portion 512 is interposed between the flexible circuit board 4 and the second side wall 22.
The second side wall 22 extends from the edge of the first side wall 21 along the second sealing portion 52. After the cover 2 is ultrasonically welded, the second sealing portion 52 is welded and fixed to the first welding rib 211.
In this embodiment, the elastic cotton block 5 is foam cotton which is easy to compress. Based on the layer structure of the elastic cotton block 5, the elastic cotton block 5 comprises a first adhesive layer 53 fixedly connected with the flexible circuit board 4 and foam 54 fixed on the surface of the first adhesive layer 53 away from the flexible circuit board 4.
In summary, in the speaker box of the present embodiment, the elastic cotton block 5 is embedded in the gap between the flexible circuit board 4 and the first notch, the first sealing portion 51 is sandwiched and fixed between the cover and the flexible circuit board 4, and the second sealing portion 52 is sandwiched and fixed between the housing 1 and the cover 2. Because the elastic cotton block 5 has certain deformation characteristics, the elastic cotton block 5 clamped by the cover body 2 and the shell body 1 can realize good sealing effect. By adopting the sealing mode of the embodiment, glue dispensing does not need to be performed by glue, so that the labor efficiency is improved, the glue dispensing space can be saved, and the appearance of the outlet position of the flexible circuit board 4 is improved.
Example two:
Referring to fig. 8 to 11, a second embodiment of the present invention is shown, which is different from the first embodiment in that:
the elastic cotton block 5 further comprises a second adhesive layer 55 laminated on the surface of the foam remote from the first adhesive layer 53. That is, the elastic cotton block 5 of the present embodiment is a piece of double-sided tape.
in this embodiment, the first adhesive layer 53 is located on the bottom of the elastic pledget 5 and the second adhesive layer 55 is located on the top of the elastic pledget 5. Two ends of a second adhesive layer 55 of the elastic cotton block 5 are adhered to the shell 1, and the middle position of the second adhesive layer 55 is adhered to the top of the flexible circuit board 4. The middle portion of the second adhesive layer 55 is bonded to the top wall of the first cutout portion, and both ends of the second adhesive layer 55 are welded to the second side wall 22 of the lid body 2.
Compared with the first embodiment, the elastic cotton block 5 with the bottom and the top respectively provided with the adhesive layers is adopted for sealing in the first embodiment, the sealing effect is better, and the sealing effect and the yield are optimized.
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 (9)
1. The utility model provides a loudspeaker box, including the casing, with the casing encloses into accommodating space's lid, accept in sound production device and part in accommodating space accept in flexible circuit board in the accommodating space, its characterized in that, the lid with the casing lid closes to form and corresponds flexible circuit board's first breach portion, loudspeaker box is still including filling first breach portion is pressed from both sides and is located the lid with elastic cotton piece between the flexible circuit board, elastic cotton piece is located including pasting flexible circuit board's first sealing and certainly the second sealing that first sealing both ends extend, first sealing presss from both sides and establishes and is fixed in the lid with between the flexible circuit board, second sealing presss from both sides and establishes and is fixed in the casing with between the lid.
2. a loudspeaker enclosure as claimed in claim 1, wherein: the lid include with the relative diapire that sets up of casing and certainly diapire marginal orientation the lateral wall that the casing was buckled and is extended, the lateral wall include with casing fixed connection's first lateral wall and with second sealing fixed connection's second lateral wall, it has first welding muscle to extend on the first lateral wall, it has second welding muscle to extend on the second lateral wall, the casing with the lid passes through first welding muscle fixed connection, the second sealing with the second lateral wall passes through second welding muscle is sealed fixed.
3. a loudspeaker enclosure as claimed in claim 2, wherein: the side walls comprise a third side wall, the third side wall and the second side wall jointly form a first gap portion, and the first sealing portion is clamped and fixed between the flexible circuit board and the third side wall.
4. A loudspeaker enclosure according to claim 3, wherein the second side wall extends from the edge of the first side wall along the second seal.
5. A loudspeaker enclosure as claimed in claim 2, wherein: and after the cover body is subjected to ultrasonic welding, the second sealing part is fixedly welded with the first welding rib.
6. A loudspeaker enclosure as claimed in claim 3, wherein: the elastic cotton block comprises a first adhesive layer fixedly connected with the flexible circuit board and foam fixed on the surface of the flexible circuit board, and the first adhesive layer is far away from the foam.
7. A loudspeaker enclosure as claimed in claim 6, wherein: the elastic cotton block further comprises a second adhesive layer which is stacked on the surface of the foam layer far away from the first adhesive layer.
8. A loudspeaker enclosure as claimed in claim 6, wherein: the elastic cotton block is foam cotton rubber which is easy to compress.
9. A loudspeaker enclosure as claimed in claim 3, wherein: the first sealing portion comprises a clamping portion and a transition portion, the clamping portion is arranged between the third side wall and the flexible circuit board in a clamped mode, the transition portion is connected between the clamping portion and the second sealing portion, and the transition portion is arranged between the flexible circuit board and the second side wall in the clamped mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2019/093546 | 2019-06-28 | ||
| PCT/CN2019/093546 WO2020258212A1 (en) | 2019-06-28 | 2019-06-28 | Speaker case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110572743A true CN110572743A (en) | 2019-12-13 |
| CN110572743B CN110572743B (en) | 2020-10-27 |
Family
ID=68773753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910581632.4A Active CN110572743B (en) | 2019-06-28 | 2019-06-30 | Loudspeaker box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110572743B (en) |
| WO (1) | WO2020258212A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110427A1 (en) * | 2020-11-30 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070177749A1 (en) * | 2006-01-30 | 2007-08-02 | Sjursen Walter P | Hearing aid circuit with integrated switch and battery |
| CN104284260A (en) * | 2013-07-01 | 2015-01-14 | 联想(北京)有限公司 | Sealed sound cavity, manufacturing method and electronic equipment thereof |
| CN104486710A (en) * | 2014-12-25 | 2015-04-01 | 上海创功通讯技术有限公司 | Loudspeaker and mobile terminal comprising same |
| CN106911976A (en) * | 2017-03-01 | 2017-06-30 | 歌尔股份有限公司 | Sound-producing device module |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105959887B (en) * | 2016-06-29 | 2022-02-01 | 歌尔股份有限公司 | Loudspeaker module |
| CN207354610U (en) * | 2017-10-09 | 2018-05-11 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN108882124B (en) * | 2018-06-29 | 2021-02-19 | 维沃移动通信有限公司 | Electronic equipment |
| CN208638530U (en) * | 2018-08-13 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
-
2019
- 2019-06-28 WO PCT/CN2019/093546 patent/WO2020258212A1/en active Application Filing
- 2019-06-30 CN CN201910581632.4A patent/CN110572743B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070177749A1 (en) * | 2006-01-30 | 2007-08-02 | Sjursen Walter P | Hearing aid circuit with integrated switch and battery |
| CN104284260A (en) * | 2013-07-01 | 2015-01-14 | 联想(北京)有限公司 | Sealed sound cavity, manufacturing method and electronic equipment thereof |
| CN104486710A (en) * | 2014-12-25 | 2015-04-01 | 上海创功通讯技术有限公司 | Loudspeaker and mobile terminal comprising same |
| CN106911976A (en) * | 2017-03-01 | 2017-06-30 | 歌尔股份有限公司 | Sound-producing device module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110427A1 (en) * | 2020-11-30 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110572743B (en) | 2020-10-27 |
| WO2020258212A1 (en) | 2020-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231024 Address after: 213000 No.3, Changcao Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Patentee after: Jiangsu Jicui Zhongyi Technology Industry Development Co.,Ltd. Address before: 213167 No.3, Changcao Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. |
|
| TR01 | Transfer of patent right |