CN105392092A - Vibration sound generating device - Google Patents
Vibration sound generating device Download PDFInfo
- Publication number
- CN105392092A CN105392092A CN201510665428.2A CN201510665428A CN105392092A CN 105392092 A CN105392092 A CN 105392092A CN 201510665428 A CN201510665428 A CN 201510665428A CN 105392092 A CN105392092 A CN 105392092A
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- CN
- China
- Prior art keywords
- voice coil
- vibration
- generating device
- sound generating
- coil loudspeaker
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- 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.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Telephone Set Structure (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a vibration sound generating device. A sound outlet hole of the vibration sound generating device is arranged on a sidewall which is perpendicular to the thickness direction. A vibration diaphragm is parallel with a plane on which the sound outlet hole is arranged. A flat voice coil is arranged perpendicularly with the vibration diaphragm. A magnet is arranged in parallel with the voice coil. The vibration direction of the voice coil is different from the thickness direction. The vibration direction of an integrated structure which is composed of the magnet and a mass block is also different from the thickness direction, thereby facilitating small-thickness design of the product. Furthermore, a vibration space can be enlarged and product performance can be improved. The vibration sound generating device has advantages of high thinning degree and high performance.
Description
Technical field
The present invention relates to electroacoustic field, particularly relate to a kind of vibration-sound generating device.
Background technology
Vibrating speaker is a kind of multifunctional acoustics device, and it also has the function of vibrating motor except the vibration sounding function realizing ventional loudspeakers.Vibrating speaker can save the inner space of portable electronic terminal, simplifies the packaging technology of portable electronic terminal, reduces the cost of portable electronic terminal, applies more and more widely so vibrating speaker obtains in portable electronic terminal field.
The vibration-sound generating device of existing structure, involving vibrations system and magnetic circuit system; Vibrational system comprises vibrating diaphragm, the tubular voice coil loudspeaker voice coil joined integrally with vibrating diaphragm; Magnetic circuit system comprises magnet and magnetic gap, and tubular voice coil loudspeaker voice coil is arranged in magnetic gap, and during vibrating speaker work, tubular voice coil loudspeaker voice coil is subject to Lorentz force and drives vibrating diaphragm at vertical direction vibration sounding, and magnetic circuit system is subject to reaction force, produces resonance at vertical direction.The vibrating speaker of this structure, because the volume of tubular voice coil loudspeaker voice coil and oscillation space limit, and needs in the vertical direction to arrange Quality Mgmt Dept to be combined with magnetic circuit system, to have thickeied the thickness of vertical direction, cannot meet the slimming demand of product.Along with the lifting of portable electronic terminal slimming, miniaturized design, existing vibration-sound generating device cannot meet slimming, microminiaturized development trend.
Therefore, be necessary to propose a kind of improvement, to overcome the defect of prior art vibration-sound generating device.
Summary of the invention
It is high that technical problem to be solved by this invention is to provide a kind of slimming design, the vibration-sound generating device that performance is good.
To achieve these goals, vibration-sound generating device of the present invention is by the following technical solutions:
A kind of vibration-sound generating device, its feature comprises shell, is contained in the vibrational system in shell and magnetic circuit system, and: described shell side is provided with the phonate hole for sound outgoing; Described vibrational system comprises vibrating diaphragm, voice coil loudspeaker voice coil and drive mechanism, the corresponding described phonate hole of described vibrating diaphragm is arranged, described voice coil loudspeaker voice coil is flat structure, described voice coil loudspeaker voice coil place plane and described vibrating diaphragm place plane orthogonal, described voice coil loudspeaker voice coil and described drive mechanism are fixed, and described vibrating diaphragm is connected by described drive mechanism with described voice coil loudspeaker voice coil; Described magnetic circuit system comprises magnet, and the corresponding described voice coil loudspeaker voice coil of described magnet is arranged, described magnet place plane and described voice coil loudspeaker voice coil place plane parallel; Described vibration-sound generating device also comprises mass and connecting portion, described magnet and described mass are fixed as one and combine, described magnet, mass integrative-structure are suspended in described shell by described connecting portion, and described magnet, mass integrative-structure can make double vibrations in described magnet place plane.
As the preferred technical scheme of one, described connecting portion is connecting rod, and described connecting rod two ends and described shell are fixed, and the corresponding described connecting rod of described mass arranges fixed structure, and described connecting rod runs through described fixed structure; Described mass can along described connecting rod bearing of trend vibration.
As further preferred technical scheme, described connecting rod is separated into two parts by described mass fixed structure, and described two parts connecting rod is all arranged with spring.
As further preferred version, described connecting rod is two, and described two connecting rods are symmetricly set in the two ends of described mass.
As the preferred technical scheme of one, described drive mechanism is transmission arm, an end of described transmission arm and described vibrating diaphragm secure bond; Body position and the described voice coil loudspeaker voice coil of described transmission arm are fixed.
As further preferred technical scheme, described transmission arm is L shape, an a limit of described L shape linking arm and vibrating diaphragm place plane parallel, and another b limit is vertical with described a limit, and fixed structure is extended on described a limit and described vibrating diaphragm is fixed; Described b limit and described voice coil loudspeaker voice coil secure bond.
As further preferred technical scheme, described b is fixed by shell fragment and shell outlying one end from described a limit.
As further preferred technical scheme again, described transmission arm is two parts, and described two parts transmission arm is symmetricly set in the two ends of described voice coil loudspeaker voice coil.
As the preferred technical scheme of one, the sidewall that described shell comprises upper and lower two ends and arranges around upper and lower two ends, described phonate hole is arranged on described sidewall; Described vibrating diaphragm and described phonate hole place plane parallel, described vibrating diaphragm is vertically arranged in described shell; Described voice coil loudspeaker voice coil and described vibrating diaphragm place plane orthogonal, described voice coil loudspeaker voice coil is horizontally placed in described shell, and described magnetic circuit is arranged at the side of described voice coil loudspeaker voice coil.
As the preferred technical scheme of one, described voice coil loudspeaker voice coil is track type, and described magnet comprises two pieces, and two straight flanges of the corresponding described track type voice coil loudspeaker voice coil of described two blocks of magnet difference are arranged, and the polarised direction of described two blocks of magnet is contrary.
Vibration-sound generating device of the present invention, phonate hole is arranged at the side of the shell of sound-producing device, avoid the thickness requirement of front phonate hole to outside portable electronic terminal vertical direction, blocking to phonate hole when avoiding electric terminal vertical direction thickness not enough, ensure that vibration-sound generating device goes out sound effective value; The corresponding phonate hole of vibrating diaphragm of vibrational system is arranged, also namely vibrating diaphragm plane is parallel with the side at phonate hole place, voice coil loudspeaker voice coil is flat structure, voice coil loudspeaker voice coil plane and vibrating diaphragm plane orthogonal, effective reduction voice coil loudspeaker voice coil taking vibration-sound generating device thickness, and change the direction of vibration of voice coil loudspeaker voice coil when vibration-sound generating device works, voice coil loudspeaker voice coil is vibrated in the horizontal direction, drive diaphragm oscillations sounding by drive mechanism; Magnet place plane and voice coil loudspeaker voice coil plane parallel, magnet and mass are fixed as one, and be suspended in housing, when voice coil loudspeaker voice coil is energized, magnet is subject to the reaction force that voice coil loudspeaker voice coil gives, in certain frequency, and the mesomerism of magnet and mass one, at magnet place, plane makes double vibrations, and vibration-sound generating device plays vibrating function.Vibration-sound generating device of the present invention, because voice coil loudspeaker voice coil is flat structure, at the direction of vibration of voice coil loudspeaker voice coil, the size restrictions of external portable electric terminal to vibration-sound generating device is little, voice coil loudspeaker voice coil can be made to obtain larger oscillation space, increase amplitude, thus improve the performance of vibration-sound generating device.Therefore, it is high that vibration-sound generating device of the present invention has slimming design, the advantage that performance is good.
Accompanying drawing explanation
Fig. 1 is vibration-sound generating device embodiment stereogram of the present invention;
Fig. 2 is the exploded view of vibration-sound generating device shown in Fig. 1;
Fig. 3 is the A-A of vibration-sound generating device shown in Fig. 1 direction cutaway view;
Fig. 4 is the B-B of vibration-sound generating device shown in Fig. 1 direction cutaway view;
Fig. 5 is the magnetic circuit system of vibration-sound generating device shown in Fig. 1 assembling schematic diagram;
Fig. 6 is the vibrational system of vibration-sound generating device shown in Fig. 1 assembling schematic diagram;
Fig. 7 is transmission arm structural representation in vibration-sound generating device embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe content of the present invention in detail:
As shown in Figure 2, vibration-sound generating device of the present invention, comprises shell, vibrational system and magnetic circuit system; Shell comprises the first housing 11, second housing 12 and the side cover 13 fixing with the first housing 11, second housing 12 sidewall; Vibrational system and magnetic circuit system is provided with in the cavity that first housing 11, second housing 12 and side cover 13 surround; Side cover 13 is provided with the phonate hole for sound outgoing.As shown in Figures 2 and 3, vibrational system comprises vibrating diaphragm 3, voice coil loudspeaker voice coil 2 and drive mechanism 4; Vibrating diaphragm 3 is corresponding with the side cover 13 at phonate hole place to be arranged, and also namely vibrating diaphragm 3 is arranged near side cover 13, vibrating diaphragm 3 place plane and side cover 13 place plane parallel; Voice coil loudspeaker voice coil 2 is flat structure, and the plane at voice coil loudspeaker voice coil 2 place and the plane orthogonal at vibrating diaphragm 3 place are arranged; The vibration-sound generating device of the present embodiment, the drive mechanism that voice coil loudspeaker voice coil 2 is connected with vibrating diaphragm 3 is transmission arm 4, transmission arm 4 by voice coil loudspeaker voice coil 2 vibration passing to vibrating diaphragm 3.As shown in Figure 2, Figure 3 and Figure 4, magnetic circuit system comprises magnet 6, and the corresponding voice coil loudspeaker voice coil 2 of magnet 6 is arranged, the plane at magnet 6 place and the plane parallel at voice coil loudspeaker voice coil 2 place; Vibration-sound generating device of the present invention also comprises mass 7, and magnet 6 is fixed with mass 7, and mass 7 is suspended in shell by connecting portion 9, and mass 7 can make double vibrations along magnet Impact direction in the enclosure with the integrative-structure of magnet 6.Vibration-sound generating device of the present invention, when extraneous drive current enters into voice coil loudspeaker voice coil 2, voice coil loudspeaker voice coil 2 is arranged in the magnetic field of magnet 6, be arranged at curent change in the voice coil loudspeaker voice coil 2 in magnetic field, voice coil loudspeaker voice coil 2 is made to be subject to Lorentz force and along voice coil loudspeaker voice coil place plane vibration, voice coil loudspeaker voice coil 2 vibrates and drives transmission arm 4 to vibrate, thus by vibration passing to vibrating diaphragm 3, vibrating diaphragm 3 vibration sounding; When voice coil loudspeaker voice coil 2 is subject to magnetic field force, magnet 6 is also subject to reciprocal active force, magnet 6 vibrates, when the frequency of the power that magnet 6 is subject to is identical with the resonance frequency of magnet 6, mass 7 integrative-structure, magnet 6 is obvious with the structural vibration of mass 7 one, and vibration-sound generating device is in vibrational state.Vibration-sound generating device of the present invention, because voice coil loudspeaker voice coil is flat structure, at the direction of vibration of voice coil loudspeaker voice coil, the size restrictions of external portable electric terminal to vibration-sound generating device is little, voice coil loudspeaker voice coil can be made to obtain larger oscillation space, increase amplitude, thus improve the performance of vibration-sound generating device.Meanwhile, when vibration-sound generating device of the present invention plays vibrating function, the direction of vibration of magnet and mass integrative-structure also in the horizontal direction, avoid taking of thickness, reduce further product thickness, on direction of vibration, size restrictions is little simultaneously, can promote the performance of vibrating function further.Therefore, it is high that vibration-sound generating device of the present invention has slimming design, the advantage that performance is good.
As shown in Figure 4 and Figure 5, the vibration-sound generating device of the present embodiment, mass 7 is fixed by connecting rod 9 and the second housing 12, mass 7 is provided with fixed structure 7a, connecting rod 9 is through fixed structure 7a, when mass 7 vibrates with the integrative-structure of magnet 6, this integrative-structure slides along connecting rod 9 bearing of trend.In order to resilience when ensure the quality of products block 7 and magnet 6 integrative-structure vibrate, connecting rod is arranged with spring 9a, and as shown in Figure 5, connecting rod 9 is separated into two parts by fixed structure 7a, two parts of connecting rod 9 are provided with spring 9a, resilience when both direction is vibrated can be ensured.The vibration-sound generating device of the present embodiment, as shown in Figure 2 and Figure 5, connecting rod 9 is two, and two connecting rods 9 are arranged at the two ends of mass 7 respectively, and the fixed structure 7a on mass 7 also corresponds to two, and spring 9a corresponds to four.Mass 7 is suspended in shell by two connecting rods 9, and is arranged at the both sides of mass 7a, effectively carries out spacing to mass, prevents polarization when vibrating, and improves the vibration performance of vibration-sound generating device.
As shown in Figure 2, Figure 3, Figure 4, the vibration-sound generating device of the present embodiment, the corresponding magnet 6 of mass 7 is provided with location notch, magnet 6 is arranged in the location notch of mass 7, mass 7 is provided with magnetic conductive board 8 away from voice coil loudspeaker voice coil side, magnetic conductive board 8 fixed magnet, and be conducive to the magnetic line of force distribution adjusting vibration-sound generating device inside, be conducive to enhancing product performance.As shown in Figures 2 and 3, the vibration-sound generating device of the present embodiment, magnet 6 is two pieces, two blocks of magnet 6 are positioned over two straight flange positions of flat track type voice coil loudspeaker voice coil 2 respectively, the magnetizing direction of two blocks of magnet 6 is contrary, identical to ensure two straight flange Impact direction of voice coil loudspeaker voice coil 2, two blocks of magnet 6 increase magnetic field intensity, are conducive to enhancing product performance.
As shown in Figure 3 and Figure 6, the vibration-sound generating device of the present embodiment, voice coil loudspeaker voice coil 2 is connected by linking arm 4 with vibrating diaphragm 3, as shown in Figure 7, transmission arm 4 is L shape, a limit of transmission arm 4 is provided with one and connects plane 41, the b limit of transmission arm 4 and voice coil loudspeaker voice coil are fixed, as shown in Figure 7, be provided with locating recesses with on the b limit of the transmission arm 4 of voice coil loudspeaker voice coil fixed position, this locating recesses ensures voice coil loudspeaker voice coil and transmission arm close fit.As shown in Figure 6, transmission arm 4 one end and vibrating diaphragm 3 are fixed, and the other end is fixed by shell fragment 5 and the second housing 12, and as shown in Figure 4, voice coil loudspeaker voice coil 2 is suspended in the top of magnet 6 by transmission arm 4.As shown in Figure 3, vibrating diaphragm 3 comprises central plane portion, the connection plane 41 of transmission arm 4 and the central plane portion secure bond of vibrating diaphragm 3, to improve the bond strength of transmission arm 4 and vibrating diaphragm 3, avoid transmission arm 4 to vibrate and damage is caused to vibrating diaphragm 3, be conducive to the transmission vibrated, enhance product performance.Meanwhile, in order to improve the rigidity of vibrating diaphragm 3 and transmission arm binding site, the acoustical behavior of adjustment product, as shown in Figures 2 and 3, vibrating diaphragm 3 is also provided with reinforcement part 3a, reinforcement part 3a is also arranged in the central plane portion of vibrating diaphragm 3.
In actual applications, in order to increase vibration-sound generating device inner space, ensure the intensity of shell simultaneously, as shown in Figure 2 and Figure 3, the position of the corresponding voice coil loudspeaker voice coil of the first housing 11 and magnetic circuit system can be provided with steel disc 11a, steel disc 11a can while this position intensity of guarantee, reduce thickness, increase the inner space of this position, be conducive to the thickness increasing magnetic circuit system and voice coil loudspeaker voice coil, enhance product performance; Meanwhile, preferably, under the prerequisite ensureing properties of product, the vibration-sound generating device magnetic circuit system of the present embodiment is only arranged at the side of voice coil loudspeaker voice coil 2, further, can be arranged at the side away from steel disc 11a, to reduce product thickness to greatest extent, meet application needs.
Vibration-sound generating device of the present invention, phonate hole is arranged on the sidewall vertical with thickness direction, vibrating diaphragm and phonate hole place plane parallel, flat voice coil loudspeaker voice coil is vertical with vibrating diaphragm arranges, magnet and voice coil loudspeaker voice coil be arranged in parallel, and the direction of vibration of voice coil loudspeaker voice coil avoids thickness direction, and the direction of vibration of magnet and mass integrative-structure also avoids the direction of thickness, be conducive to the slimming design of product, meanwhile, can oscillation space be increased, enhance product performance.Therefore, it is high that vibration-sound generating device of the present invention has slimming design, the advantage that performance is good.
These are only the invention process case, be not limited to the present invention, as long as those of ordinary skill in the art modify or change according to the equivalence that disclosed content is done, all should include in the protection range recorded in claims.
Claims (10)
1. a vibration-sound generating device, its feature comprises shell, is contained in the vibrational system in shell and magnetic circuit system, it is characterized in that:
Described shell side is provided with the phonate hole for sound outgoing;
Described vibrational system comprises vibrating diaphragm, voice coil loudspeaker voice coil and drive mechanism, the corresponding described phonate hole of described vibrating diaphragm is arranged, described voice coil loudspeaker voice coil is flat structure, described voice coil loudspeaker voice coil place plane and described vibrating diaphragm place plane orthogonal, described voice coil loudspeaker voice coil and described drive mechanism are fixed, and described vibrating diaphragm is connected by described drive mechanism with described voice coil loudspeaker voice coil;
Described magnetic circuit system comprises magnet, and the corresponding described voice coil loudspeaker voice coil of described magnet is arranged, described magnet place plane and described voice coil loudspeaker voice coil place plane parallel;
Described vibration-sound generating device also comprises mass and connecting portion, described magnet and described mass are fixed as one and combine, described magnet, mass integrative-structure are suspended in described shell by described connecting portion, and described magnet, mass integrative-structure can make double vibrations in described magnet place plane.
2. vibration-sound generating device according to claim 1, is characterized in that: described connecting portion is connecting rod, and described connecting rod two ends and described shell are fixed, and the corresponding described connecting rod of described mass arranges fixed structure, and described connecting rod runs through described fixed structure; Described mass can along described connecting rod bearing of trend vibration.
3. vibration-sound generating device according to claim 2, is characterized in that: described connecting rod is separated into two parts by described mass fixed structure, and described two parts connecting rod is all arranged with spring.
4. the vibration-sound generating device according to Claims 2 or 3, is characterized in that: described connecting rod is two, and described two connecting rods are symmetricly set in the two ends of described mass.
5. vibration-sound generating device according to claim 1, is characterized in that: described drive mechanism is transmission arm, an end of described transmission arm and described vibrating diaphragm secure bond; Body position and the described voice coil loudspeaker voice coil of described transmission arm are fixed.
6. vibration-sound generating device according to claim 5, it is characterized in that: described transmission arm is L shape, (a) limit for described L shape linking arm and vibrating diaphragm place plane parallel, another (b) limit is vertical with described (a) limit, and fixed structure is extended on described (a) limit and described vibrating diaphragm is fixed; Described (b) limit and described voice coil loudspeaker voice coil secure bond.
7. vibration-sound generating device according to claim 6, is characterized in that: described (b) outlying one end from described (a) limit is fixed by shell fragment and shell.
8. the vibration-sound generating device according to the arbitrary claim of claim 5 to 7, is characterized in that: described transmission arm is two parts, and described two parts transmission arm is symmetricly set in the two ends of described voice coil loudspeaker voice coil.
9. vibration-sound generating device according to claim 1, is characterized in that: the sidewall that described shell comprises upper and lower two ends and arranges around upper and lower two ends, and described phonate hole is arranged on described sidewall; Described vibrating diaphragm and described phonate hole place plane parallel, described vibrating diaphragm is vertically arranged in described shell; Described voice coil loudspeaker voice coil and described vibrating diaphragm place plane orthogonal, described voice coil loudspeaker voice coil is horizontally placed in described shell; Described magnetic circuit is arranged at the side of described voice coil loudspeaker voice coil.
10. vibration-sound generating device according to claim 1, is characterized in that: described voice coil loudspeaker voice coil is track type, and described magnet comprises two pieces, and two straight flanges of the corresponding described track type voice coil loudspeaker voice coil of described two blocks of magnet difference are arranged, and the polarised direction of described two blocks of magnet is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665428.2A CN105392092A (en) | 2015-06-05 | 2015-10-15 | Vibration sound generating device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015103062343 | 2015-06-05 | ||
| CN201510306234 | 2015-06-05 | ||
| CN201510665428.2A CN105392092A (en) | 2015-06-05 | 2015-10-15 | Vibration sound generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105392092A true CN105392092A (en) | 2016-03-09 |
Family
ID=55423846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510665428.2A Pending CN105392092A (en) | 2015-06-05 | 2015-10-15 | Vibration sound generating device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105392092A (en) |
| WO (1) | WO2016192315A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108307013A (en) * | 2018-02-28 | 2018-07-20 | 广东欧珀移动通信有限公司 | Electronic equipment |
| CN110383858A (en) * | 2017-03-07 | 2019-10-25 | 哈曼国际工业有限公司 | Loudspeaker |
| CN111819866A (en) * | 2018-03-07 | 2020-10-23 | 哈曼国际工业有限公司 | Loudspeaker |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107820184B (en) * | 2017-11-28 | 2023-11-28 | 歌尔股份有限公司 | Piezoelectric sounding device |
| CN113747313B (en) * | 2020-05-29 | 2024-04-09 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
| CN113747310B (en) * | 2020-05-29 | 2024-04-09 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
| CN213661840U (en) * | 2020-11-18 | 2021-07-09 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN113873405A (en) * | 2021-09-02 | 2021-12-31 | 头领科技（昆山）有限公司 | Flat earphone |
| CN114697825B (en) * | 2022-02-15 | 2023-07-07 | 华为技术有限公司 | Speaker and electronic equipment |
| CN114760572A (en) * | 2022-04-18 | 2022-07-15 | 深圳市乔宁科技有限公司 | Suspension type audio transducer and applied audio equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860370A (en) * | 1988-02-12 | 1989-08-22 | Gregory Grosbard | Magnetically suspended acoustical speaker |
| CN200950658Y (en) * | 2006-10-12 | 2007-09-19 | 林凯生 | Novel flat panel loudspeaker |
| CN102256195A (en) * | 2010-09-01 | 2011-11-23 | 歌尔声学股份有限公司 | Moving-coil type electro-acoustic transducer |
| CN104469633A (en) * | 2014-12-02 | 2015-03-25 | 歌尔声学股份有限公司 | Miniature loudspeaker |
-
2015
- 2015-10-15 CN CN201510665428.2A patent/CN105392092A/en active Pending
- 2015-11-16 WO PCT/CN2015/094678 patent/WO2016192315A1/en active Application Filing
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110383858A (en) * | 2017-03-07 | 2019-10-25 | 哈曼国际工业有限公司 | Loudspeaker |
| US11218811B2 (en) | 2017-03-07 | 2022-01-04 | Harman International Industries, Incorporated | Loudspeaker |
| CN110383858B (en) * | 2017-03-07 | 2022-07-05 | 哈曼国际工业有限公司 | Loudspeaker |
| CN108307013A (en) * | 2018-02-28 | 2018-07-20 | 广东欧珀移动通信有限公司 | Electronic equipment |
| CN108307013B (en) * | 2018-02-28 | 2021-04-16 | Oppo广东移动通信有限公司 | Electronic device |
| CN111819866A (en) * | 2018-03-07 | 2020-10-23 | 哈曼国际工业有限公司 | Loudspeaker |
| US11450302B2 (en) | 2018-03-07 | 2022-09-20 | Harman International Industries, Incorporated | Loudspeaker with magnets in ferrofluid |
| CN111819866B (en) * | 2018-03-07 | 2023-02-03 | 哈曼国际工业有限公司 | Loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016192315A1 (en) | 2016-12-08 |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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Application publication date: 20160309 |