CN102833654A - Loudspeaker device - Google Patents
Loudspeaker device Download PDFInfo
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- CN102833654A CN102833654A CN2012103128417A CN201210312841A CN102833654A CN 102833654 A CN102833654 A CN 102833654A CN 2012103128417 A CN2012103128417 A CN 2012103128417A CN 201210312841 A CN201210312841 A CN 201210312841A CN 102833654 A CN102833654 A CN 102833654A
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Abstract
A loudspeaker device comprises a cavity and a loudspeaker. Wall thickness of the cavity is 0.4-0.5 millimeter, volume of the cavity is 0.5-3 cubic centimeter, a plurality of air permeable polystyrene foams are arranged on the inner wall of the cavity, and a sound hole is arranged on the cavity. The loudspeaker is mounted in the sound hole and is contained in the cavity. The loudspeaker is contained in the smaller cavity by the loudspeaker device, so that the volume of the loudspeaker device is smaller. Since the air permeable polystyrene foams are arranged on the inner wall of the cavity, two different air permeable passages are produced inside the cavity. By the aid of the method that magnification acoustic resistance is produced to a low-frequency portion of the loudspeaker through the two different air permeable passages of the cavity, sounding efficiency of a bass portion of the loudspeaker device is increased, so that sound can be produced in an ultra-low-frequency range of the loudspeaker which originally can't produce sound, and sounding scope of bass of the loudspeaker is expanded. Therefore, the loudspeaker device is smaller in size and the bass can be produced.
Description
Technical field
The present invention relates to the electroacoustic techniques field, particularly relate to a kind of loudspeaker.
Background technology
Conventional acoustic is serve as that foundation is judged the bass frequencies that loudspeaker can send to promote volume of air (Loudspeaker diaphragm area * loudspeaker effective stroke).The volume of air that promotes is big more, and the bass frequencies that can send are low more.Small-bore loudspeaker in small hand held devices such as mobile phone, panel computer are less because of its vibrating diaphragm area, add that this body structure is also limited, can not send lower bass.Add the restriction in space, can not provide enough spaces and do the bass pronunciation scope of electroacoustic design with the expansion loudspeaker, thereby make that the sound playing effect of small hand held devices such as mobile phone, panel computer is all very dry and astringent, do not have bass, the sound playing effect is relatively poor.
Summary of the invention
Based on this, the loudspeaker that a kind of volume is less, can produce bass is provided.
A kind of loudspeaker comprises:
Cavity, the wall thickness of said cavity are that 0.4 ~ 0.5 millimeter, volume are 0.5 ~ 3 cubic centimetre, and the inwall of said cavity is provided with a plurality of gas permeability foamed glues, offers phonate hole on the said cavity; And
Loudspeaker are installed in the said phonate hole and are contained in the said cavity.
Among embodiment, said gas permeability foamed glue is gas permeability foamed silica gel or gas permeability bipeltate therein.
Therein among embodiment, said cavity comprises base plate and is covered on the box body on the said base plate, and said phonate hole is opened in the middle part of said box body, and said a plurality of gas permeability foamed glues are interspersed on the inwall of said base plate and box body.
Among embodiment, offer a plurality of frequency modulation hole on the sidewall of said box body therein.
Among embodiment, the quantity in said frequency modulation hole is 2 ~ 3 therein, and does not wait in the aperture in said 2 ~ 3 frequency modulation holes, and be distributed on the sidewall of said box body.
Therein among embodiment; Said frequency modulation hole is 2; Said 2 frequency modulation holes are opened in respectively on the said box body side walls; Gas permeability foamed glue on one of them frequency modulation hole and the said base plate is relative, and the gas permeability foamed glue on another frequency modulation hole and the said box body is relative, and the aperture in the frequency modulation hole relative with gas permeability foamed glue on the said base plate less than with said box body on the aperture in the relative frequency modulation hole of gas permeability foamed glue.
Therein among embodiment; At said loudspeaker and the quantity that offers the gas permeability foamed glue between the box side wall in less frequency modulation hole, aperture is 2, is 3 at said loudspeaker and the quantity that offers the gas permeability foamed glue between the box side wall in bigger frequency modulation hole, aperture.
Therein among embodiment,
Said box body comprises cover plate and is looped around said cover plate four sidewalls all around; Said a plurality of gas permeability foamed glue comprises the many groups elementary cell that is provided with at interval; Each base unit comprises four gas permeability foamed glues; Said four gas permeability foamed glues are arranged at respectively on the cover plate and two sidewalls of said base plate, said box body, and said four gas permeability foamed glues surround through hole, the dead in line of the through hole of many groups elementary cell that said interval is provided with.
Among embodiment, the frothing percentage of said gas permeability foamed glue is 20% ~ 55% therein.
Among embodiment, the air penetrability of said gas permeability foamed glue is 3 ~ 30% therein.
Above-mentioned loudspeaker is contained in loudspeaker in the cavity, and the wall thickness of cavity is merely 0.4 ~ 0.5 millimeter, volume and is merely 0.5 ~ 3 cubic centimetre, and therefore, the volume of loudspeaker is less, can be applied in small hand held devices such as mobile phone, panel computer; The inwall of cavity is provided with a plurality of gas permeability foamed glues; Make the inside of cavity produce two kinds of different air permeability passages; This loudspeaker utilizes the different air permeability passage of two kinds of cavity that the loudspeaker low frequency part is produced the pronunciation efficient that the method that increases acoustic resistance increases bass part; Make the lower low-frequency range that to sound originally at loudspeaker can produce sound, expanded the bass pronunciation scope of loudspeaker.
Description of drawings
Fig. 1 is the structural representation of the loudspeaker of an execution mode;
Fig. 2 is a cavity shown in Figure 1 cutaway view along the II-II line of Fig. 1;
Fig. 3 is the cutaway view along the II-II line of Fig. 1;
Fig. 4 is the cutaway view along the III-III line of Fig. 1;
Fig. 5 is similar with Fig. 3, is the cutaway view of the loudspeaker of another execution mode;
Fig. 6 is similar with Fig. 4, is another angle cutaway view of the loudspeaker of another execution mode.
Embodiment
Below through embodiment and accompanying drawing above-mentioned loudspeaker is further set forth.
See also Fig. 1, the loudspeaker 100 of an execution mode comprises cavity 10 and loudspeaker 20.
Please consult Fig. 2 simultaneously, cavity 10 comprises base plate 11 and box body 12.In this execution mode, base plate 11 is a rectangular slab, and box body 12 comprises rectangular cover plate 121 and is looped around cover plate 121 four sidewalls 122 all around.Box body 12 is covered on and forms square, airtight host cavity 13 on the base plate 11.
Be appreciated that in other embodiments the shape of cavity 10 is not limited to square, can be other shapes such as circle, ellipse.
The wall thickness of base plate 11 and box body 12 is 0.4 ~ 0.5 millimeter, and the volume of cavity 10 is 0.5 ~ 3 cubic centimetre.Therefore, the volume of cavity 10 is less, can be applied in the small hand held devices such as mobile phone, panel computer.
The middle part of the cover plate 121 of box body 12 offers the phonate hole 14 that is used to install loudspeaker 20.The cross section of phonate hole 14 is convex.
The inwall of base plate 11 and box body 12 is provided with a plurality of gas permeability foamed glues 15.Gas permeability foamed glue 15 can be gas permeability foamed silica gel (for example NANOCELL) or gas permeability bipeltate.
Please consult Fig. 3 and Fig. 4 simultaneously, in this execution mode, gas permeability foamed glue 15 is square gas permeability foamed silica gel sheet.In other embodiments, gas permeability foamed glue 15 can be circular, square or other irregular shapes.
The area of gas permeability foamed glue 15 is 0.5 ~ 2.8 square centimeter.In this execution mode, a plurality of gas permeability foamed glues 15 are interspersed on the inwall of base plate 11 and cover plate 121.In this execution mode, a surface of a plurality of gas permeability foamed glues 15 is pasted on the inwall of base plate 11 and cover plate 121.
The frothing percentage of gas permeability foamed glue 15 is preferably 20 ~ 55%, and air penetrability is preferably 3 ~ 30%.
The quantity of gas permeability foamed glue 15 is selected according to the size of cavity 10 and the characteristic of loudspeaker 20.Gas permeability foamed glue 15 is according to formula f=(1/2 Π) * (K/M)
1/2Select.Wherein, f is the resonance frequency of gas permeability foamed glue 15, and K is the stiffness factor of gas permeability foamed glue 15, and M is the quality of gas permeability foamed glue 15.Confirm the value of f according to the characteristic of loudspeaker 20, select the gas permeability foamed glue 15 of suitable quantity then according to the value of f.
The frothing percentage of gas permeability foamed glue 15 is selected according to the size of the volume of cavity 10, when the volume of cavity 10 hour, select the less gas permeability foamed glue 15 of frothing percentage for use; When the volume of cavity 10 is big, select the bigger gas permeability foamed glue 15 of frothing percentage for use.For example, when the volume of cavity 10 is 0.5 ~ 1.5 cubic centimetre, preferably adopt the gas permeability foamed glue 15 of frothing percentage 20 ~ 30%.
Preferably, cavity 10 is formed by non electrically conductive material, like plastic cement, timber etc.When loudspeaker 100 being applied in the small hand held devices such as mobile phone, panel computer, cavity 10 is because of the non-conductive touch screen electric capacity interference that can not produce.Therefore, the internal structure of small hand held devices such as the mobile phone of use loudspeaker 100, panel computer need not to dodge design and avoids the electric capacity interference.The adaptability of loudspeaker 100 is better.
Please consult Fig. 2 and Fig. 3 simultaneously, loudspeaker 20 are installed in the phonate hole 14 and are contained in the cavity 10.The shape of the shape of loudspeaker 20 and phonate hole 14 is complementary, so that the left and right sides of loudspeaker 20 and part top all can be fixed on the hole wall of phonate hole 14, thereby is firmly fixed on the box body 12.When loudspeaker 100 being used for handheld devices such as mobile phone, panel computer, loudspeaker 20 can not come off from box body 12 because of the destabilizing factors such as vibration of handheld devices such as mobile phone, panel computer.
Loudspeaker 20 are fixed on the hole wall of phonate hole 14 through viscose glue.The sound that loudspeaker 20 send distributes from phonate hole 14.
In this execution mode, loudspeaker 20 are positioned at the middle part of box body 12.In preferred execution mode, loudspeaker 20 are positioned at an end of box body 12.Loudspeaker 20 are positioned at an end of box body 12, and the secondary position can be set effectively, increase low frequency expansion effect.Be appreciated that in this preferred execution mode, phonate hole 14 also correspondingly is opened in an end of box body 12, so that the sound that loudspeaker 20 send is propagated through phonate hole 14.
Being appreciated that loudspeaker 20 are Microspeaker, is in 0.5 ~ 3 cubic centimetre the cavity 10 to be contained in volume.
Loudspeaker 20 are contained in cavity 10 inside, and are arranged on the box body 12, make that the displacement of voice coil loudspeaker voice coil and vibrating diaphragm of loudspeaker 20 is less, have effectively protected loudspeaker 20.
Above-mentioned loudspeaker 100 is contained in loudspeaker 20 in the cavity 10; The wall thickness of cavity 10 is merely 0.4 ~ 0.5 millimeter, volume and is merely 0.5 ~ 3 cubic centimetre; Therefore, the volume of loudspeaker 100 is less, can be applied in small hand held devices such as mobile phone, panel computer; The inwall of cavity 10 is provided with a plurality of gas permeability foamed glues 15; The air-vent inside of a plurality of gas permeability foamed glues 15 is without hindrance excessive; Make the inside of cavity 10 produce two kinds of different air permeability passages, i.e. the air permeability passage of the air permeability passage of host cavity 13 self and a plurality of gas permeability foamed glue 15 self.Two kinds of different air permeability passages can produce two kinds of different acoustic resistance characteristics;, air can produce different acoustic resistances when vibrating in such the inside, little space according to the frequency difference; Loudspeaker 100 utilizes the different air permeability passage of two kinds of cavity 10 that loudspeaker 20 low frequency part are produced the pronunciation efficient that the method that increases acoustic resistance increases bass part; Make the lower low-frequency range that to sound originally at loudspeaker 20 can produce sound, expanded the bass pronunciation scope of loudspeaker 20.
Preferably, in this execution mode, offer two frequency modulation holes 16 on the side walls of box body 12 respectively.Two frequency modulation holes 16 can be square, circular port or slotted eye etc.The pore size in two frequency modulation holes 16 differs.The frequency modulation hole 16 that the aperture is bigger is relative with the gas permeability foamed glue 15 on the box body 12, and the frequency modulation hole 16 that the aperture is less is relative with the gas permeability foamed glue 15 on the base plate 11.
In this execution mode; At loudspeaker 20 and the quantity that offers the gas permeability foamed glue 15 between box body 12 sidewalls in bigger frequency modulation hole 16, aperture is 3; A gas permeability foamed glue 15 is arranged on the cover plate 121 of box body 12, and two gas permeability foamed glues 15 are crisscross arranged on base plate 11.In loudspeaker 20 and the quantity that offers the gas permeability foamed glue 15 between box body 12 sidewalls in less frequency modulation hole 16, aperture is that 2,2 gas permeability foamed glues 15 are crisscross arranged respectively on base plate 11 and box body 12 and cover plate 121.
Need to prove; In other embodiments; Be not limited to 3 at loudspeaker 20 and the quantity that offers the gas permeability foamed glue 15 between box body 12 sidewalls in bigger frequency modulation hole 16, aperture, also be not limited to 2 at loudspeaker 20 and the quantity that offers the gas permeability foamed glue 15 between box body 12 sidewalls in less frequency modulation hole 16, aperture.For example, certain when the area of gas permeability foamed glue 15, and the volume of cavity 10 is when big, in conjunction with the characteristic of loudspeaker 20, and the corresponding increase of the quantity of gas permeability foamed glue 15; Certain when the volume of cavity 10, and 15 area of gas permeability foamed glue is hour, in conjunction with the characteristic of loudspeaker 20, and the also corresponding increase of the quantity of gas permeability foamed glue 15.But no matter how the quantity of gas permeability foamed glue 15 increases, and should guarantee in loudspeaker 20 and the quantity that offers gas permeability foamed glue 15 between box body 12 sidewalls in bigger frequency modulation hole 16, aperture greater than at loudspeaker 20 and offer the quantity of gas permeability foamed glue 15 between box body 12 sidewalls in less frequency modulation hole 16, aperture.The frequency modulation hole 16 corresponding low frequencies that the aperture is bigger are used the big and big gas permeability foamed glue 15 of quality of density; Less frequency modulation hole 16, aperture then is directed against upper frequency, and the frequency modulation hole 16 bigger with the aperture forms complementation, in order to avoid frequency response is uneven.
In other embodiments, the quantity in frequency modulation hole 16 can be one, is opened in box body 12 wherein on the sidewall of a side.In other execution mode, the quantity in frequency modulation hole 16 can be 3, and on the sidewall that wherein two are opened in box body 12 1 sides, another one is opened on the sidewall of box body 12 opposite sides.
The quantity in frequency modulation hole 15 is preferably smaller or equal to three.When the quantity in frequency modulation hole 15 greater than three the time, can reduce the intensity of cavity 10 on the one hand, on the other hand, frequency is regulated audio and is played an important role, but the quantity in frequency modulation hole 15 is difficult to adjust the combination property of sound when too much.
The aperture in frequency modulation hole 15 is preferably 0.5 ~ 2.2mm.
Loudspeaker 100 utilizes the different air permeability passage of two kinds of cavity 10 to produce the variable resistance passage of giving birth to; Be used to regulate the bass radiation acoustic resistance of loudspeaker 20; Expanded the LF-response of loudspeaker 20 effectively; Improved the low frequency phonation efficiency of loudspeaker 20 under minimum volume conditions, made its effective low frequency playback lower limit can reach one and half sound intervals following (as reaching below the 400HZ) of loudspeaker 20 minimum cutoff.The lower low-frequency range that loudspeaker 20 can't be sounded originally can produce sound.
Loudspeaker 20 are contained in set inside to be had in the cavity 10 of a plurality of gas permeability foamed glues 15, has reduced the amplitude of loudspeaker 20 in low frequency part effectively, improves the power tolerance and the reliability of loudspeaker 20, thus the useful life of having improved loudspeaker 20.
Gas permeability foamed glue 15 is gas permeability foamed silica gel or gas permeability bipeltate; Gas permeability foamed silica gel or gas permeability bipeltate have certain elasticity; Can absorb extraneous partial vibration, thereby eliminate the influence of vibration, improve the voice effect of loudspeaker 20 sound generating.
The frothing percentage of gas permeability foamed glue 15 is preferably 20 ~ 55%; Air penetrability is preferably 3 ~ 30%; So that the matching of the air permeability passage that the cavity that air permeability passage that gas permeability foamed glue 15 produces and volume are 0.5 ~ 3 cubic centimetre produces is better; Can regulate the bass radiation acoustic resistance of loudspeaker 20 preferably, greatly expand the LF-response of loudspeaker 20.
In this execution mode, offer two frequency modulation holes 16 on the side walls of box body 12 respectively, improved the voice effect of loudspeaker 100.
Loud speaker 100 has been expanded the bass lower limit of loudspeaker 20, makes loud speaker 100 have deep bass performance.Loudspeaker 100 is applied to small hand held devices such as mobile phone, panel computer, can improves the sound playing effect of small hand held devices such as mobile phone, panel computer significantly.
Be appreciated that except mobile phone, panel computer loudspeaker 100 can be applied in other volume small device, like micro-type receiver, MP3, MP4 etc.
See also Fig. 5, the loudspeaker 200 of another execution mode comprises cavity 20 and loudspeaker 40.
The inwall of base plate 21 and box body 22 is provided with a plurality of gas permeability bipeltates 25.In other execution mode, gas permeability bipeltate 25 also can replace with the gas permeability foamed silica gel.
Please consult Fig. 6 simultaneously, in this execution mode, host cavity 23 be shaped as cuboid, gas permeability bipeltate 25 is for having certain thickness square gas permeability foam rubber sheet.A plurality of gas permeability bipeltates 25 comprise 5 groups of elementary cells that are provided with at interval, and each base unit comprises four gas permeability bipeltates 25.Four gas permeability bipeltates 25 are arranged at respectively on the cover plate 221 and two parallel sidewalls 222 of base plate 21, box body 22, and four gas permeability bipeltates 25 surround through hole 252.The dead in line of the through hole 252 of 5 groups of elementary cells that are provided with at interval.Through hole 252 can be square opening or circular port etc.In this execution mode, through hole 252 is a square opening.
Be appreciated that in other embodiments the quantity of elementary cell is not limited to 5 groups, also can be 4 groups, 6 groups etc.
In other execution mode; When cavity 20 is spherical cavity; Gas permeability bipeltate 25 can offer the gas permeability foam rubber sheet of the circle of through hole for the middle part; So that the sidewall of gas permeability bipeltate 25 can fit with the inwall of base plate 11 and box body 12, a plurality of gas permeability bipeltates 25 are provided with at interval, make the dead in line of through hole.
The volume of above-mentioned loudspeaker 200 is less, can be applied to small hand held devices such as mobile phone, panel computer.And the low frequency phonation efficiency of loudspeaker 200 is higher, has effectively expanded loudspeaker 40 basses pronunciations scope, thus improve significantly the mobile phone that uses loudspeaker 200, the sound playing effect.
The above embodiment has only expressed several kinds of execution modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. a loudspeaker is characterized in that, comprising:
Cavity, the wall thickness of said cavity are that 0.4 ~ 0.5 millimeter, volume are 0.5 ~ 3 cubic centimetre, and the inwall of said cavity is provided with a plurality of gas permeability foamed glues, offers phonate hole on the said cavity; And
Loudspeaker are installed in the said phonate hole and are contained in the said cavity.
2. loudspeaker according to claim 1 is characterized in that, said gas permeability foamed glue is gas permeability foamed silica gel or gas permeability bipeltate.
3. loudspeaker according to claim 1; It is characterized in that; Said cavity comprise base plate be covered on the box body on the said base plate, said phonate hole is opened in the middle part of said box body, said a plurality of gas permeability foamed glues are interspersed on the inwall of said base plate and box body.
4. loudspeaker according to claim 3 is characterized in that, offers a plurality of frequency modulation hole on the sidewall of said box body.
5. loudspeaker according to claim 4 is characterized in that, the quantity in said frequency modulation hole is 2 ~ 3, and does not wait in the aperture in said 2 ~ 3 frequency modulation holes, and be distributed on the sidewall of said box body.
6. loudspeaker according to claim 4; It is characterized in that; Said frequency modulation hole is 2, and said 2 frequency modulation holes are opened in respectively on the said box body side walls, and the gas permeability foamed glue on one of them frequency modulation hole and the said base plate is relative; Gas permeability foamed glue on another frequency modulation hole and the said box body is relative, and the aperture in the frequency modulation hole relative with gas permeability foamed glue on the said base plate less than with said box body on the aperture in the relative frequency modulation hole of gas permeability foamed glue.
7. loudspeaker according to claim 6; It is characterized in that; At said loudspeaker and the quantity that offers the gas permeability foamed glue between the box side wall in less frequency modulation hole, aperture is 2, is 3 at said loudspeaker and the quantity that offers the gas permeability foamed glue between the box side wall in bigger frequency modulation hole, aperture.
8. loudspeaker according to claim 3; It is characterized in that; Said box body comprises cover plate and is looped around said cover plate four sidewalls all around; Said a plurality of gas permeability foamed glue comprises the many groups elementary cell that is provided with at interval, and each base unit comprises four gas permeability foamed glues, and said four gas permeability foamed glues are arranged at respectively on the cover plate and two sidewalls of said base plate, said box body; And said four gas permeability foamed glues surround through hole, the dead in line of the through hole of many groups elementary cell that said interval is provided with.
9. loudspeaker according to claim 1 is characterized in that, the frothing percentage of said gas permeability foamed glue is 20% ~ 55%.
10. loudspeaker according to claim 1 is characterized in that, the air penetrability of said gas permeability foamed glue is 3 ~ 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210312841.7A CN102833654B (en) | 2012-08-29 | 2012-08-29 | Loudspeaker device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210312841.7A CN102833654B (en) | 2012-08-29 | 2012-08-29 | Loudspeaker device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102833654A true CN102833654A (en) | 2012-12-19 |
| CN102833654B CN102833654B (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210312841.7A Active CN102833654B (en) | 2012-08-29 | 2012-08-29 | Loudspeaker device |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088110A1 (en) * | 2019-11-06 | 2021-05-14 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006050174A (en) * | 2004-08-04 | 2006-02-16 | Iwatsu Electric Co Ltd | Electroacoustic transducer with acoustic damper |
| CN201039444Y (en) * | 2007-04-03 | 2008-03-19 | 王智人 | Improved long sound box structure |
| US20100142741A1 (en) * | 2004-05-12 | 2010-06-10 | Jan Princeton Plummer | Loudspeaker |
| CN101902675A (en) * | 2009-05-25 | 2010-12-01 | 巍世科技有限公司 | Thin speaker capable of strengthening bass/mega bass sound effect |
| CN102469391A (en) * | 2010-11-12 | 2012-05-23 | 苹果公司 | Speaker having a horizontal former |
-
2012
- 2012-08-29 CN CN201210312841.7A patent/CN102833654B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100142741A1 (en) * | 2004-05-12 | 2010-06-10 | Jan Princeton Plummer | Loudspeaker |
| JP2006050174A (en) * | 2004-08-04 | 2006-02-16 | Iwatsu Electric Co Ltd | Electroacoustic transducer with acoustic damper |
| CN201039444Y (en) * | 2007-04-03 | 2008-03-19 | 王智人 | Improved long sound box structure |
| CN101902675A (en) * | 2009-05-25 | 2010-12-01 | 巍世科技有限公司 | Thin speaker capable of strengthening bass/mega bass sound effect |
| CN102469391A (en) * | 2010-11-12 | 2012-05-23 | 苹果公司 | Speaker having a horizontal former |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088110A1 (en) * | 2019-11-06 | 2021-05-14 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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| Publication number | Publication date |
|---|---|
| CN102833654B (en) | 2014-12-17 |
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Effective date of registration: 20171218 Address after: Start 330115 Jiangxi city of Nanchang province Songhai Economic and Technological Development Zone District Yingbin Avenue Patentee after: Nanchang Haozhun Electronics Co., Ltd. Address before: 518109 Baoan District, Shenzhen, Guangdong Province, Da Li street and the 17 rich industrial park Patentee before: Shenzhen Horn Audio Co., Ltd. |
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Effective date of registration: 20220321 Address after: No. 28, yongyang Road, Liuyang hi tech Development Zone, Changsha, Hunan 410300 Patentee after: Hunan yingzhun Technology Co.,Ltd. Address before: 330115 Yingbin Avenue, starting area, Sanghai economic and Technological Development Zone, Nanchang City, Jiangxi Province Patentee before: Nanchang Haozhun Electronics Co.,Ltd. |