CN210641054U - Loudspeaker module - Google Patents
Loudspeaker module Download PDFInfo
- Publication number
- CN210641054U CN210641054U CN201921033542.3U CN201921033542U CN210641054U CN 210641054 U CN210641054 U CN 210641054U CN 201921033542 U CN201921033542 U CN 201921033542U CN 210641054 U CN210641054 U CN 210641054U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- upper cover
- sound
- baffle
- bottom wall
- 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
- 239000011358 absorbing material Substances 0.000 claims abstract description 35
- 229920000742 Cotton Polymers 0.000 claims abstract description 31
- 210000005056 cell body Anatomy 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 18
- 238000009423 ventilation Methods 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 125000004122 cyclic group Chemical group 0.000 abstract description 10
- 239000000178 monomer Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000002955 isolation Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010457 zeolite 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- 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
-
- 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
Abstract
The utility model provides a loudspeaker module, including having the upper cover plate of acceping the chamber, lower apron and holding that set up relatively with the upper cover plate are accommodated the intracavity and are fixed in the speaker monomer of upper cover plate, a serial communication port, the upper cover plate is provided with the upper cover plate diapire and is inhaled the sound cotton by the cyclic annular of upper cover plate diapire orientation down apron extension at its free region of loudspeaker not placed, loudspeaker module is still including being fixed in the cyclic annular ventilative separator who inhales the sound cotton, the upper cover plate diapire, cyclic annular is inhaled the sound cotton and is breathed the separator and enclose jointly and establish and form the air current cell body, the position that the lower cover plate corresponds the air current cell body is equipped with down the apron diapire and is extended and the baffle of the ventilative separator of butt by apron diapire orientation down, the baffle, thereby lower cover plate diapire and ventilative separator constitute the filling chamber that holds sound absorbing material jointly, thereby the baffle lies in the air current cell body within range and makes the The filling cavities are in air flow communication through the air-permeable partition.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electroacoustic conversion field especially relates to a speaker module.
[ background of the invention ]
In a speaker device comprising a speaker, a housing and a resonance space, a gas absorbing material, also called sound absorbing material, e.g. activated carbon or zeolite, may be placed therein to improve the sound production of the speaker device. The gas absorption material in the resonance space of the loudspeaker leads to an apparent virtual enlargement (virtual environment) of the resonance space through the gas absorption and release effects, so that the resonance frequency of the loudspeaker device is reduced to a value that can be achieved with a larger resonance space, generally for improving the low frequency effect of the loudspeaker.
In general speaker, set up special region and be used for placing sound absorbing material, the research that is used for placing sound absorbing material's region to the speaker is continuously going on, and the general research direction is that the air current compliance in receiving more sound absorbing material and compromise the speaker working process simultaneously in limited space, consequently, how set up sound absorbing material place the space and how make the air current get into sound absorbing material region again through longer route, become the utility model discloses the problem that needs the solution.
[ Utility model ] content
An object of the utility model is to provide a can encapsulate more loudspeaker modules of sound absorbing material in order full play sound absorbing material's performance.
The technical scheme of the utility model as follows:
the speaker module provided by this embodiment comprises an upper cover plate with a receiving cavity, a lower cover plate arranged opposite to the upper cover plate, and a speaker unit accommodated in the receiving cavity and fixed on the upper cover plate, wherein the upper cover plate is provided with an upper cover plate bottom wall and an annular sound-absorbing cotton fixed on the upper cover plate bottom wall in an area where the speaker unit is not placed, the speaker module further comprises a ventilation partition fixed on the annular sound-absorbing cotton, the upper cover plate bottom wall, the annular sound-absorbing cotton and the ventilation partition together enclose an air flow groove body, the lower cover plate is provided with a lower cover plate bottom wall and a baffle extending from the lower cover plate bottom wall to the upper cover plate and abutting against the ventilation partition, and the baffle, the lower cover plate bottom wall and the ventilation partition together form a filling cavity for accommodating a sound-absorbing material, the baffle is followed the projection of upper cover plate and lower apron equipment direction is located thereby the air current cell body within range makes the air current cell body with accept between the chamber and the air current cell body with fill all through ventilative separator air current intercommunication between the chamber.
Preferably, the annular sound-absorbing cotton encloses to form the side wall of the air flow groove, and the breathable partition completely covers the surface of the annular sound-absorbing cotton facing the bottom wall of the lower cover plate to form the top wall of the air flow groove.
Preferably, the upper cover plate further comprises two groups of long shaft side walls which are oppositely arranged and two groups of short shaft side walls which are oppositely arranged and connected with the two groups of long shaft side walls, the baffle and the lower cover plate are of an integrally formed structure, the arrangement direction of the baffle is consistent with that of the short shaft side walls, and two ends of the baffle respectively abut against the inner surfaces of the two groups of long shaft side walls of the upper cover plate.
Preferably, the cotton both sides of sound are inhaled to cyclic annular still be equipped with the baffle cooperation is separated accept the chamber and fill the shelves post in chamber, shelves post one end is fixed cotton surface is inhaled to cyclic annular sound, the shelves post other end extends to the upper cover plate the major axis lateral wall internal surface.
Preferably, the speaker module further includes a Flexible Printed Circuit (FPC) board having one end electrically connected to the speaker unit and the other end protruding from the short-axis side wall of the upper cover plate.
Preferably, be equipped with the powder hole of irritating that the sound absorbing material of being convenient for was filled on the lower cover plate diapire, irritate the powder hole with it communicates with each other to fill the chamber, the speaker module is still including being fixed in irritate sealed cover plate that seals up on the powder hole.
Preferably, the bottom wall of the lower cover plate is further provided with a leakage hole communicated with the filling cavity, and the aperture of the leakage hole is smaller than that of the powder filling hole.
The beneficial effects of the utility model reside in that:
the utility model discloses a speaker module will inhale sound material and place apron down, rather than with the free space sharing of placing the speaker, can obtain bigger packing chamber and hold more sound material. Accept the air current in chamber and need just can get into sound absorbing material region after ventilative separator, air current cell body, increased air current flow path, promote the air current compliance, further promote the sound producing effect. The size of filling the chamber does not receive the size influence of ventilative separator, and by the relative position of baffle and the accommodating space decision of upper cover plate, the filling area who compares ventilative separator's size decision sound absorbing material among the prior art, the utility model discloses a fill the chamber volume just bigger, can strengthen sound absorbing material's filling area as far as possible. The arrangement of the airflow groove body increases the contact area between the sound-absorbing material and sound waves emitted by the loudspeaker single body, and the function of the sound-absorbing material can be better exerted. The utility model discloses an it is cotton as bearing structure that cyclic annular sound absorption is under the prerequisite that satisfies the hardness requirement, and the consumptive material is with low costs, easily processing, and the permeability is good, mutually supports with ventilative separator, and airflow channel is more unobstructed, does benefit to the transmission of air current.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a speaker module according to an embodiment of the present invention;
fig. 2 is a schematic perspective exploded view of a speaker module according to an embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a speaker module according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an upper cover plate in an embodiment of the present invention;
fig. 5 is a schematic structural view of a lower cover plate in an embodiment of the present invention;
fig. 6 is a cross-sectional view of the speaker module of the embodiment of the present invention along the direction a-a in fig. 1;
fig. 7 is a partial enlarged view of the assembly of the speaker module according to the embodiment of the present invention, taken along the circle B in fig. 6.
[ detailed description ] embodiments
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1-3, the present invention discloses a speaker module, which comprises an upper cover plate 1 having a receiving cavity 12, a lower cover plate 2 disposed opposite to the upper cover plate 1, and a speaker unit 3 received in the receiving cavity 12 and fixed to the upper cover plate 1, wherein the upper cover plate 1 is provided with an upper cover plate bottom wall 17 and an annular sound-absorbing cotton 11 fixed to the upper cover plate bottom wall 17 at a region where the speaker unit 3 is not located, the speaker module 3 further comprises a ventilation spacer 5 fixed to the annular sound-absorbing cotton 11, the upper cover plate bottom wall 17, the annular sound-absorbing cotton 11 and the ventilation spacer 5 together enclose to form an air flow groove 111, the lower cover plate 2 is provided with a lower cover plate bottom wall 22 and a baffle 21 extending from the lower cover plate bottom wall 22 to the upper cover plate 1 and abutting against the ventilation spacer 5, the baffle 21, the lower cover plate bottom wall 22 and the ventilation spacer 5 together form a filling cavity 13 for receiving sound-absorbing material, the projection of the baffle 21 along the assembly direction of the upper cover plate 1 and the lower cover plate 2 is positioned in the range of the airflow groove body 111, so that the airflow between the airflow groove body 111 and the accommodating cavity 12 and the airflow between the airflow groove body 111 and the filling cavity 13 are communicated through the airflow of the ventilation partition 5.
The breathable isolation piece 5 is an element which can be breathable and has an isolation effect, specifically can be dustproof mesh cloth, the dustproof mesh cloth is an auxiliary material which is applied to mobile phones, sound boxes and other electronic elements and has a dustproof and acoustic effect, polyester and terylene are used as raw materials and woven by a high-precision loom, and the breathable isolation piece has the characteristics of variable density, light weight, certain rigidity, smoothness, acoustic resistance and the like. The specific woven material can be one or more of polyethylene terephthalate (PET) and polyether ether ketone (PEEK).
Compared with the prior art, the sound-absorbing material 4 is placed on the lower cover plate 2 instead of being shared with the space where the speaker unit 3 is placed, a larger filling cavity 13 can be obtained to accommodate more sound-absorbing material 4. Accept the air current of chamber 12 and need can get into sound absorbing material 4 region behind ventilative separator 5, the air current cell body 111, increased the air current flow path, promote the air current compliance, further promote the sound producing effect. The size of filling chamber 13 does not receive ventilative separator 5's size to influence, and by the relative position of baffle 21 and the accommodating space decision of upper cover plate 1, compare in prior art ventilative separator 5's size decision sound absorbing material 4's filling region, the utility model discloses a filling chamber 13 volume is just bigger, can increase sound absorbing material 4's filling region as far as possible. The provision of the air flow grooves 111 increases the contact area between the sound absorbing material 4 and the sound waves generated from the speaker unit 3, thereby making it possible to exert the function of the sound absorbing material 4 more effectively. So the utility model discloses can fill more sound absorbing material 4, and sound absorbing material 4's performance also can obtain better performance. The annular sound-absorbing cotton 11 is fixed on the upper cover plate 1 through double-sided adhesive tape, and is easy to process and form.
Referring to fig. 6-7, the ring-shaped sound-absorbing cotton 11 encloses the side walls 112 of the air channel 111, and the air-permeable partition 5 completely covers the top wall 113 of the air channel 111 on the surface of the ring-shaped sound-absorbing cotton 11 facing the bottom wall 22 of the lower cover plate. Ventilative separator 5 is in the one end of filling the chamber and need form the physical isolation state completely with cyclic annular sound absorption cotton 11, in order to avoid sound absorbing material to leak powder to air current cell body 111, ventilative separator 5 is also covered on cyclic annular sound absorption cotton 11 by the divided other end of baffle 21, in order to reach the supporting role, of course, the other end of ventilative separator 5 and cyclic annular sound absorption also can be equipped with the opening between the cotton 11, be favorable to the circulation of air process in the air current cell body 111 like this, be favorable to the better quilt sound absorbing material of sound to absorb, sound absorbing material's sound absorbing effect is improved.
Referring to fig. 4, the upper cover plate 1 includes two sets of long axis sidewalls 14 opposite to each other and two sets of short axis sidewalls 15 opposite to and connected to the two sets of long axis sidewalls 14, the baffle plate 21 and the lower cover plate 2 are integrally formed, an opening direction of the baffle plate 21 is the same as an opening direction of the short axis sidewalls 15, and two ends of the baffle plate 21 respectively abut against inner surfaces of the two sets of long axis sidewalls 14 of the upper cover plate 1. Baffle 21 and lower apron 2 are integrated into one piece structure, easily processing, and baffle 21 both ends are supported respectively and are held on the major axis lateral wall 14 of upper cover plate 1, can reach better sealed effect, avoid leaking the powder.
In this embodiment, the sound-absorbing ring 11 is further provided with a blocking post 16 at both sides thereof for separating the containing cavity 12 and the filling cavity 13 in cooperation with the baffle 21, one end of the blocking post 16 is fixed on the outer surface of the sound-absorbing ring 11, and the other end of the blocking post 16 extends to the inner surface of the long-axis sidewall 14 of the upper cover plate 1. The height of the retaining column 16 is consistent with that of the annular sound-absorbing cotton 11, the annular sound-absorbing cotton 11 is not in contact with the long-axis side wall 14 of the upper cover plate 1, gaps formed between the annular sound-absorbing cotton 11 and the long-axis side wall 14 can be filled up by the retaining column, meanwhile, the pressure of the retaining plate 21 can be borne at the two ends, the stress of the breathable isolating piece 5 is reduced, and the effect of assisting the breathable isolating piece 5 to support the retaining plate 21 is achieved.
In this embodiment, the speaker module further includes a flexible wiring board FPC board 6 having one end electrically connected to the speaker unit 3 and the other end protruding from the short-axis side wall 15 of the upper cover 1. The FPC board 6 is mainly electrically connected with the speaker single body 3, and the sound production process of the speaker single body 3 is realized through electric signals.
Referring to fig. 5, the bottom wall 22 of the lower cover plate is provided with a powder filling hole 221 for filling the sound-absorbing material 4, the powder filling hole 221 is communicated with the filling cavity 13, the speaker module further includes a sealing cover 7 fixed on the powder filling hole 221 for sealing, and the sealing cover 7 is fixed in the powder filling hole 221 through a double-sided adhesive tape. The bottom wall 22 of the lower cover plate is further provided with a leakage hole 222 communicated with the filling cavity 13, and the aperture of the leakage hole 222 is smaller than that of the powder filling hole 221. The leakage holes 222 are covered by a cover sheet to prevent powder leakage and ensure air flow circulation. The powder filling hole 221 is provided mainly for filling the sound absorbing material 4.
Further refer to fig. 6, the utility model discloses an equipment direction of speaker module is directional as arrow point X in fig. 6, and upper cover plate 1 is fixed, earlier to the fixed speaker monomer 3 of X direction, then to the fixed screen cloth of X direction on cyclic annular sound absorption cotton 11, closes apron 2 down to X direction lid again, pours into sound absorbing material 4 to the X direction through irritating powder hole 221 at last.
In this embodiment, the upper cover plate 1 is provided with a sound-emitting through hole 31 for facilitating the sound emission of the speaker unit 3, and the sound-emitting through hole 31 is communicated with the accommodating cavity 12. The sounding through hole 31 and the upper cover plate 1 are of an integrated structure, and mainly play a role in a sound transmission process.
The above are only embodiments of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (7)
1. A loudspeaker module comprises an upper cover plate with a containing cavity, a lower cover plate arranged opposite to the upper cover plate, and a loudspeaker single body which is contained in the containing cavity and fixed on the upper cover plate, and is characterized in that the upper cover plate is provided with an upper cover plate bottom wall and an annular sound-absorbing cotton fixed on the upper cover plate bottom wall in an area where the loudspeaker single body is not placed, the loudspeaker module further comprises a ventilation isolating piece fixed on the annular sound-absorbing cotton, the upper cover plate bottom wall, the annular sound-absorbing cotton and the ventilation isolating piece are jointly enclosed to form an airflow groove body, the lower cover plate is provided with a lower cover plate bottom wall and a baffle extending from the lower cover plate bottom wall to the upper cover plate and abutting against the ventilation isolating piece, and the baffle, the lower cover plate bottom wall and the ventilation isolating piece jointly form a filling cavity for containing sound-absorbing materials, the baffle is followed the projection of upper cover plate and lower apron equipment direction is located thereby the air current cell body within range makes the air current cell body with accept between the chamber and the air current cell body with fill all through ventilative separator air current intercommunication between the chamber.
2. The speaker module as claimed in claim 1, wherein the ring-shaped sound-absorbing cotton encloses the side walls of the slot to form the airflow slot, and the air-permeable partition completely covers the top wall of the slot on the surface of the ring-shaped sound-absorbing cotton facing the bottom wall of the lower cover plate to form the airflow slot.
3. The speaker module as claimed in claim 1, wherein the upper cover further comprises two sets of long axis sidewalls and two sets of short axis sidewalls, the two sets of long axis sidewalls are opposite to each other and connected to each other, the baffle and the lower cover are integrally formed, the opening direction of the baffle is the same as the opening direction of the short axis sidewalls, and two ends of the baffle respectively abut against the inner surfaces of the two sets of long axis sidewalls of the upper cover.
4. The speaker module as claimed in claim 3, wherein a blocking pillar is disposed on each side of the ring-shaped sound-absorbing cotton to cooperate with the baffle to separate the receiving cavity and the filling cavity, one end of the blocking pillar is fixed on the outer surface of the ring-shaped sound-absorbing cotton, and the other end of the blocking pillar extends to the inner surface of the long-axis sidewall of the upper cover plate.
5. The speaker module as claimed in claim 3, further comprising a Flexible Printed Circuit (FPC) board having one end electrically connected to the speaker unit and the other end protruding from the short axis side wall of the upper cover plate.
6. The speaker module as claimed in claim 1, wherein the bottom wall of the lower cover plate is provided with a powder filling hole for filling sound absorbing material, the powder filling hole is communicated with the filling cavity, and the speaker module further comprises a sealing cover plate fixed on the powder filling hole for sealing.
7. The speaker module as claimed in claim 6, wherein the bottom wall of the lower cover plate is further provided with a leakage hole communicating with the filling cavity, and the aperture of the leakage hole is smaller than that of the powder filling hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2019/094066 | 2019-06-30 | ||
| PCT/CN2019/094066 WO2021000166A1 (en) | 2019-06-30 | 2019-06-30 | Speaker module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210641054U true CN210641054U (en) | 2020-05-29 |
Family
ID=70792463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921033542.3U Expired - Fee Related CN210641054U (en) | 2019-06-30 | 2019-07-03 | Loudspeaker module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210641054U (en) |
| WO (1) | WO2021000166A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022006951A1 (en) * | 2020-07-09 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure |
| WO2022126768A1 (en) * | 2020-12-16 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Speaker housing |
| CN114679673A (en) * | 2021-12-23 | 2022-06-28 | 浙江旗声电子科技股份有限公司 | Combined ultra-wideband loudspeaker and production equipment thereof |
| WO2023123830A1 (en) * | 2020-12-31 | 2023-07-06 | 歌尔股份有限公司 | Loudspeaker module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204498347U (en) * | 2015-04-13 | 2015-07-22 | 歌尔声学股份有限公司 | Loud speaker module |
| CN107241669B (en) * | 2017-06-28 | 2024-03-12 | 歌尔股份有限公司 | Loudspeaker module |
| CN108124225B (en) * | 2018-02-26 | 2020-06-09 | 歌尔股份有限公司 | Loudspeaker module and electronic equipment |
| CN208908495U (en) * | 2018-08-03 | 2019-05-28 | 瑞声科技(新加坡)有限公司 | Loudspeaker mould group |
| CN109688522A (en) * | 2019-01-31 | 2019-04-26 | 歌尔股份有限公司 | A kind of loudspeaker mould group and electronic equipment |
-
2019
- 2019-06-30 WO PCT/CN2019/094066 patent/WO2021000166A1/en active Application Filing
- 2019-07-03 CN CN201921033542.3U patent/CN210641054U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022006951A1 (en) * | 2020-07-09 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker enclosure |
| WO2022126768A1 (en) * | 2020-12-16 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Speaker housing |
| WO2023123830A1 (en) * | 2020-12-31 | 2023-07-06 | 歌尔股份有限公司 | Loudspeaker module |
| CN114679673A (en) * | 2021-12-23 | 2022-06-28 | 浙江旗声电子科技股份有限公司 | Combined ultra-wideband loudspeaker and production equipment thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021000166A1 (en) | 2021-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |