CN107690106A - Loudspeaker enclosure - Google Patents
Loudspeaker enclosure Download PDFInfo
- Publication number
- CN107690106A CN107690106A CN201710536963.7A CN201710536963A CN107690106A CN 107690106 A CN107690106 A CN 107690106A CN 201710536963 A CN201710536963 A CN 201710536963A CN 107690106 A CN107690106 A CN 107690106A
- Authority
- CN
- China
- Prior art keywords
- loudspeaker enclosure
- housing
- loudspeaker
- cover plate
- elastic cover
- 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
- 239000000178 monomer Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 3
- SLNPSLWTEUJUGY-UHFFFAOYSA-N 1-(cyclopenten-1-yl)ethanone Chemical compound CC(=O)C1=CCCC1 SLNPSLWTEUJUGY-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- ATQUFXWBVZUTKO-UHFFFAOYSA-N 1-methylcyclopentene Chemical compound CC1=CCCC1 ATQUFXWBVZUTKO-UHFFFAOYSA-N 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007789 sealing Methods 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
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
-
- 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
- H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
-
- 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
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
- H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
Abstract
The present invention discloses a kind of loudspeaker enclosure, including housing and the loudspeaker monomer being contained in the housing, the loudspeaker monomer includes the vibrating diaphragm for vibration sounding, the vibrating diaphragm is arranged at intervals to form the preceding operatic tunes with the housing, the loudspeaker enclosure also includes the connection preceding operatic tunes and leads sound passage with extraneous, the preceding operatic tunes and the ante-chamber led sound passage and collectively form the loudspeaker enclosure, the position that the ante-chamber is corresponded on the housing is provided with the through hole for running through housing, the loudspeaker enclosure also includes the elastic cover plate for being used to absorb the energy of the vibration under particular resonant frequency that the through hole is connected and covered with the housing, the elastic cover plate includes the elastomeric layer of sheet metal and stacking located at the sheet metal.Loudspeaker enclosure provided by the invention, ante-chamber resonance can be weakened, resonance peak is reduced, improve distortion.
Description
【Technical field】
The present invention relates to electroacoustic switch technology field, and in particular to a kind of loudspeaker enclosure.
【Background technology】
With the arrival in mobile Internet epoch, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.At present, the function of mobile phone is extremely various, and one of them is just
It is the music function of high-quality, therefore, the loudspeaker enclosure for playing sound is widely applied Intelligent mobile equipment till now
Among.
Loudspeaker enclosure includes housing, the loudspeaker monomer being contained in the housing, and the loudspeaker monomer includes being used for
The vibrating diaphragm of vibration sounding, the vibrating diaphragm are arranged at intervals to form the preceding operatic tunes with the housing, and the preceding operatic tunes connects with leading sound passage
Form ante-chamber.In correlation technique, housing is made of hard plastic material and metal material, and region corresponding to the preceding operatic tunes is firm
Property wall.The damping of rigid walls is small, and Oscillation Amplitude is small, and emittance is limited, and cavity energy effectively can not blaze abroad, because
And the energy of some assigned frequencies can not be absorbed.Ante-chamber resonance is produced during the loudspeaker enclosure sounding, due to resonance effect, in
High frequency forms resonance peak, while 2 times, 3 inferior distortion spikes can be produced in distortion, influences sense of hearing.
Therefore, it is necessary to providing a kind of new loudspeaker enclosure solves above-mentioned technical problem.
【The content of the invention】
The purpose of the present invention is to overcome above-mentioned technical problem, there is provided one kind weakens ante-chamber resonance, reduces resonance peak, improves and lose
Genuine loudspeaker enclosure.
Technical scheme is as follows：A kind of loudspeaker enclosure, including housing and the loudspeaker that is contained in the housing
Monomer, the loudspeaker monomer include the vibrating diaphragm for vibration sounding, and the vibrating diaphragm is arranged at intervals to form preceding sound with the housing
Chamber, the loudspeaker enclosure also include the connection preceding operatic tunes and lead sound passage with extraneous, and the preceding operatic tunes leads sound passage with described
The ante-chamber of the loudspeaker enclosure is collectively formed, the position that the ante-chamber is corresponded on the housing is provided with the through hole for running through housing, institute
State loudspeaker enclosure also include be connected and cover with the housing through hole for absorbing vibration under particular resonant frequency
The elastic cover plate of energy, the elastic cover plate include the elastomeric layer of sheet metal and stacking located at the sheet metal.
Preferably, the through hole is set with the loudspeaker monomer face.
Preferably, the elastomeric layer is formed at the sheet metal by spraying coating process.
Preferably, the elastomeric layer is bonded and fixed to the sheet metal.
Preferably, the elastomeric layer is one in TPUE, methyl cyclopentenyl ketone or silica gel
Kind.
Preferably, the elastic cover plate absorbs the energy for the vibration that resonant frequency is 3000~7000Hz.
Compared with correlation technique, loudspeaker enclosure beneficial effect provided by the invention is：The housing is included described in correspondence
The through hole that preceding cavity region is formed, the loudspeaker enclosure also include being connected with the housing and covering the elastic cover plate of the through hole,
For absorbing the energy of the vibration under particular resonant frequency, so as to weaken the resonance effect of the loudspeaker enclosure and reduce its mistake
Very, and then the acoustical behavior of the loudspeaker enclosure is improved.
【Brief description of the drawings】
Fig. 1 is the stereogram of loudspeaker enclosure provided by the invention；
Fig. 2 is the exploded view of loudspeaker enclosure shown in Fig. 1；
Fig. 3 is sectional view of the loudspeaker enclosure along line A-A shown in Fig. 1；
Fig. 4 is the amplitude measurement result of elastic cover plate in loudspeaker enclosure provided by the invention；
Fig. 5 is the resonance peak of loudspeaker enclosure provided by the invention loudspeaker enclosure corresponding with using rigid walls in correlation technique
Contrast curve；
Fig. 6 is loudspeaker enclosure provided by the invention loudspeaker enclosure distortion spike corresponding with using rigid walls in correlation technique
Contrast curve.
【Embodiment】
Below in conjunction with drawings and embodiments, the invention will be further described.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, wherein Fig. 1 is the stereogram of loudspeaker enclosure provided by the invention；Fig. 2 is Fig. 1
The exploded view of shown loudspeaker enclosure；Fig. 3 is sectional view of the loudspeaker enclosure along line A-A shown in Fig. 1.The loudspeaker enclosure 100 includes
Housing 11, the loudspeaker monomer 12 being contained in the housing 11.The loudspeaker monomer 12 includes shaking for vibration sounding
Film 121.
The housing 11 includes upper lid 111 and lower cover 112, and the upper lid 111 and the lower cover 112 enclose to form a collecting
Space, the loudspeaker monomer 12 are contained in the receiving space.
The inwall of the vibrating diaphragm 121 and the upper lid 111 is arranged at intervals to form the preceding operatic tunes 113, and the upper lid 111 also includes
Connect the preceding operatic tunes 113 and lead sound passage 114 with extraneous, the preceding operatic tunes 113 collectively forms institute with the sound passage 114 of leading
The ante-chamber 110 of loudspeaker enclosure 100 is stated, the ante-chamber 110 is by outside sound conduction caused by the vibrating diaphragm 121 to the housing 11.
The position that the ante-chamber 110 is corresponded on the upper lid 111 is provided with the through hole 1111 for running through upper lid 111, the upper lid
111 are additionally provided with groove 1112 at the through hole 1111, and the loudspeaker enclosure 100 also includes being connected and covering with the upper lid 111
The elastic cover plate 13 of the through hole 1111 is covered, the elastic cover plate 13 is fixedly connected the through hole 1111 with the upper lid 111
Sealing, the elastic cover plate 13 include sheet metal 131 and stacking located at the elastomeric layer 132 of the sheet metal 131, the bullet
Property cover plate 13 be housed in the groove 1112 and set with the flush with outer surface of the upper lid 111.Preferably, the through hole
1111 are set with the face of loudspeaker monomer 12, and certainly, the through hole 1111, which can also be arranged at, described leads sound passage 114
Position.
Rigid walls in correlation technique are replaced by the elastic cover plate 13 in the present invention, and the elastic cover plate 13
Elastomeric layer 132, which can increase, damps and reduces overall Young's modulus, and the elastic cover plate 13 has a resonant frequency,
By designing, when the resonant frequency of the elastic cover plate 13 is adjusted into a certain frequency, near resonant frequency, the elastomeric cap
Plate 13 can produce stronger vibration, in 100 sounding of loudspeaker enclosure, when loudspeaker monomer 12 vibrates, make in ante-chamber 110
Air compression produces energy, and energy driving elastic cover plate 13 vibrates, so as to consume the energy in ante-chamber 110, elastic cover plate 13
Preferably vibrate at the resonant frequency fx, now oscillation intensity reaches maximum, so as to consume more energy；And then absorb
The purpose of energy near assigned frequency；Can be by medium in the ante-chamber 110 in addition, substituting rigid walls by the elastic cover plate 13
Density is passed to outside the ante-chamber 110, and then is reduced the covibration of the loudspeaker enclosure 100 and improved distortion.
Especially by the entirety to the elastic cover plate 13 or part material, area, shape and thickness be designed with
Realize above-mentioned purpose.The elastomeric layer 132 is preferably Thermoplastic polyurethane elastomer material (TPU), methyl cyclopentene alcohol
One kind in ketone (MCP) or silica gel, the elastomeric layer 132 are formed at the sheet metal 131, or bonding by spraying coating process
It is fixed on the sheet metal 131.The elastic cover plate 13 forms a fixed connection to form the part of ante-chamber 110 with the upper lid 111
Structure, the energy near the resonance peak of the ante-chamber 110 of the loudspeaker enclosure 100 is absorbed, reaching reduces resonance peak, improves and lose
Very, the purpose of the acoustical behavior of the loudspeaker enclosure 100 is improved.The resonant frequency range that elastic cover plate 13 can absorb as needed
It is designed adjustment.Specific resonant frequency is the resonant frequency range that the needs set absorb.
Loudspeaker enclosure 100 provided by the invention is subjected to elastic cover plate amplitude measurement.Referring to Fig. 4, provided for the present invention
Loudspeaker enclosure in elastic cover plate amplitude measurement result, wherein curve a represent elastic cover plate amplitude maximum, curve b represent
Elastic cover plate amplitude minimums.Elastic cover plate resonant frequency is 3000-7000Hz in the present embodiment it can be seen from accompanying drawing 4,
Stronger vibration can be produced near elastic cover plate resonant frequency.
Loudspeaker enclosure provided by the invention loudspeaker enclosure corresponding with using rigid walls in correlation technique is subjected to performance pair
Than test, the performance datas such as resonance peak and the distortion spike of the loudspeaker enclosure are detected.Fig. 5, Fig. 6 are referred to, wherein Fig. 5 is this
The resonance peak contrast curve of the loudspeaker enclosure provided loudspeaker enclosure corresponding with using rigid walls in correlation technique is provided；Fig. 6
For loudspeaker enclosure provided by the invention loudspeaker enclosure distortion spike contrast curve corresponding with using rigid walls in correlation technique.
Curve c represents to use the resonance peak curve of loudspeaker enclosure corresponding to rigid walls in correlation technique in accompanying drawing 5, and curve d represents this hair
The resonance peak curve of the loudspeaker enclosure of bright offer；Curve e represents to use loudspeaker corresponding to rigid walls in correlation technique in accompanying drawing 6
The distortion spiked profiles of case, curve f represent the distortion spiked profiles of loudspeaker enclosure provided by the invention.
By accompanying drawing 5, Fig. 6 data it can be seen from using the loudspeaker enclosure of elastic cover plate compared to being used in correlation technique
The loudspeaker enclosure of rigid walls, its resonance peak substantially reduce；And distortion spike equally substantially reduces.
Compared with correlation technique, loudspeaker enclosure beneficial effect provided by the invention is：The housing is included described in correspondence
The through hole that preceding cavity region is formed, the loudspeaker enclosure also include being connected with the housing and covering the elastic cover plate of the through hole,
For absorbing the energy of the vibration under particular resonant frequency, so as to weaken the resonance effect of the loudspeaker enclosure and reduce its mistake
Very, and then the acoustical behavior of the loudspeaker enclosure is improved.
Above-described is only embodiments of the present invention, it should be noted here that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to the protection model of the present invention
Enclose.
Claims (6)
1. a kind of loudspeaker enclosure, including housing and the loudspeaker monomer that is contained in the housing, the loudspeaker monomer include
For the vibrating diaphragm of vibration sounding, the vibrating diaphragm is arranged at intervals to form the preceding operatic tunes with the housing, and the loudspeaker enclosure also includes connecting
Lead to the preceding operatic tunes and lead sound passage with extraneous, the preceding operatic tunes is led before sound passage collectively forms the loudspeaker enclosure with described
Chamber, it is characterised in that the position that the ante-chamber is corresponded on the housing is provided with the through hole for running through housing, and the loudspeaker enclosure also wraps
The elastic cover plate for being used to absorb the energy of the vibration under particular resonant frequency that the through hole is connected and covered with the housing is included,
The elastic cover plate includes the elastomeric layer of sheet metal and stacking located at the sheet metal.
2. loudspeaker enclosure according to claim 1, it is characterised in that the through hole is set with the loudspeaker monomer face
Put.
3. loudspeaker enclosure according to claim 1, it is characterised in that the elastomeric layer is formed at by spraying coating process
The sheet metal.
4. loudspeaker enclosure according to claim 1, it is characterised in that the elastomeric layer is bonded and fixed to the metal
Piece.
5. loudspeaker enclosure according to claim 1, it is characterised in that the elastomeric layer is thermoplastic polyurethane elastic
One kind in body, methyl cyclopentenyl ketone or silica gel.
6. loudspeaker enclosure according to any one of claim 1 to 5, it is characterised in that the elastic cover plate absorbs resonance
Frequency is the energy of 3000~7000Hz vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710536963.7A CN107690106B (en) | 2017-07-04 | 2017-07-04 | Loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710536963.7A CN107690106B (en) | 2017-07-04 | 2017-07-04 | Loudspeaker box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107690106A true CN107690106A (en) | 2018-02-13 |
| CN107690106B CN107690106B (en) | 2020-02-04 |
Family
ID=61152744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710536963.7A Active CN107690106B (en) | 2017-07-04 | 2017-07-04 | Loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107690106B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712693A (en) * | 2018-03-26 | 2018-10-26 | 广东欧珀移动通信有限公司 | Housing unit and electronic equipment with it |
| CN109246539A (en) * | 2018-10-17 | 2019-01-18 | 无锡杰夫电声股份有限公司 | A kind of thin speaker case loading elastic sheet |
| WO2020258150A1 (en) * | 2019-06-27 | 2020-12-30 | 瑞声声学科技(深圳)有限公司 | Electronic device |
| CN112399313A (en) * | 2020-10-30 | 2021-02-23 | 歌尔股份有限公司 | Sound production device |
| WO2021189867A1 (en) * | 2020-03-26 | 2021-09-30 | 歌尔股份有限公司 | Loudspeaker module |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203590383U (en) * | 2013-09-12 | 2014-05-07 | 歌尔声学股份有限公司 | Loudspeaker module |
| US20150063595A1 (en) * | 2013-08-29 | 2015-03-05 | Nokia Corporation | Speaker apparatus |
| CN204231652U (en) * | 2014-12-15 | 2015-03-25 | 歌尔声学股份有限公司 | A kind of loud speaker module |
| CN204350291U (en) * | 2015-02-03 | 2015-05-20 | 歌尔声学股份有限公司 | Loud speaker module |
| CN204733358U (en) * | 2015-07-01 | 2015-10-28 | 歌尔声学股份有限公司 | Microspeaker |
| CN205195972U (en) * | 2015-10-21 | 2016-04-27 | 歌尔声学股份有限公司 | Loudspeaker module group |
| CN205847524U (en) * | 2016-07-20 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN206061094U (en) * | 2016-07-20 | 2017-03-29 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
-
2017
- 2017-07-04 CN CN201710536963.7A patent/CN107690106B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150063595A1 (en) * | 2013-08-29 | 2015-03-05 | Nokia Corporation | Speaker apparatus |
| CN203590383U (en) * | 2013-09-12 | 2014-05-07 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN204231652U (en) * | 2014-12-15 | 2015-03-25 | 歌尔声学股份有限公司 | A kind of loud speaker module |
| CN204350291U (en) * | 2015-02-03 | 2015-05-20 | 歌尔声学股份有限公司 | Loud speaker module |
| CN204733358U (en) * | 2015-07-01 | 2015-10-28 | 歌尔声学股份有限公司 | Microspeaker |
| CN205195972U (en) * | 2015-10-21 | 2016-04-27 | 歌尔声学股份有限公司 | Loudspeaker module group |
| CN205847524U (en) * | 2016-07-20 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN206061094U (en) * | 2016-07-20 | 2017-03-29 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712693A (en) * | 2018-03-26 | 2018-10-26 | 广东欧珀移动通信有限公司 | Housing unit and electronic equipment with it |
| CN109246539A (en) * | 2018-10-17 | 2019-01-18 | 无锡杰夫电声股份有限公司 | A kind of thin speaker case loading elastic sheet |
| WO2020258150A1 (en) * | 2019-06-27 | 2020-12-30 | 瑞声声学科技(深圳)有限公司 | Electronic device |
| WO2021189867A1 (en) * | 2020-03-26 | 2021-09-30 | 歌尔股份有限公司 | Loudspeaker module |
| CN112399313A (en) * | 2020-10-30 | 2021-02-23 | 歌尔股份有限公司 | Sound production device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107690106B (en) | 2020-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10225646B2 (en) | Speaker box | |
| CN107343247A (en) | Loudspeaker enclosure | |
| CN107690106A (en) | Loudspeaker enclosure | |
| US10469953B2 (en) | Speaker box | |
| CN208353585U (en) | Loudspeaker enclosure | |
| CN207612403U (en) | Loudspeaker enclosure | |
| US10750274B2 (en) | Speaker box | |
| CN107371106A (en) | Loudspeaker enclosure | |
| US10375469B2 (en) | Speaker box | |
| CN107396257A (en) | Loudspeaker enclosure | |
| US10764664B2 (en) | Speaker box | |
| CN208353580U (en) | Loudspeaker enclosure | |
| CN107396256A (en) | Loudspeaker enclosure | |
| CN207075087U (en) | Loudspeaker enclosure | |
| CN207531064U (en) | Loudspeaker enclosure | |
| CN209201314U (en) | Loudspeaker enclosure | |
| CN207531067U (en) | Loudspeaker enclosure | |
| CN107396259A (en) | Loudspeaker enclosure | |
| CN207075084U (en) | Loudspeaker enclosure | |
| CN207075085U (en) | Loudspeaker enclosure | |
| CN207612414U (en) | Loudspeaker enclosure | |
| CN207075086U (en) | Loudspeaker enclosure | |
| CN207869356U (en) | Loudspeaker enclosure | |
| CN207354589U (en) | Loudspeaker enclosure | |
| CN207625786U (en) | Loudspeaker enclosure |
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 |