CN102333270B - Sounder - Google Patents

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Publication number
CN102333270B
CN102333270B CN201110198398.0A CN201110198398A CN102333270B CN 102333270 B CN102333270 B CN 102333270B CN 201110198398 A CN201110198398 A CN 201110198398A CN 102333270 B CN102333270 B CN 102333270B
Authority
CN
China
Prior art keywords
voice coil
vibrating diaphragm
permanent magnet
magnetic circuit
magnet assembly
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
Application number
CN201110198398.0A
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Chinese (zh)
Other versions
CN102333270A (en
Inventor
严绪东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Optoelectronic Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Optoelectronic Changzhou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Optoelectronic Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Priority to CN201110198398.0A priority Critical patent/CN102333270B/en
Publication of CN102333270A publication Critical patent/CN102333270A/en
Application granted granted Critical
Publication of CN102333270B publication Critical patent/CN102333270B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a sounder which comprises a vibration system, a magnetic circuit system and a housing accommodating the vibration system and the magnetic circuit system, wherein, the magnetic circuit system comprises a magnetic frame having accommodation space and fixed on the housing and a permanent magnet assembly accommodated in the accommodation space, a magnetic gap is provided between the magnetic frame and the permanent magnet assembly, the vibration system comprises a first diaphragm and a second diaphragm which are attached to the housing and separate from each other to form a certain distance, a voice coil framework with one end connected with the first diaphragm and the other end connected with the second diaphragm, and a first voice coil and a second voice coil wound on the voice coil framework, the voice coil framework is located in the magnetic gap, and the magnetic circuit system is located between the first diaphragm and the second diaphragm. The sounder provided in the invention enables voice effects of a product to be enhanced.

Description

Acoustical generator
Technical field
The present invention relates to a kind of acoustical generator, particularly relate to a kind of ultrathin acoustical generator.
Background technology
For the miniaturization, the multifunction that adapt to various stereo set and information communication device develop, the acoustical generator used in this kind equipment is in requisition for being more tending towards miniaturized, and it is compacter with coordinating of described other elements of acoustical generator periphery, particularly along with the lightening growth requirement of mobile phone, wherein used acoustical generator, not only require miniaturization, more require high tone quality and stereo etc.
Acoustical generator related to the present invention comprises the vibrational system being provided with vibrating diaphragm, the magnetic circuit system being provided with magnet steel and accommodates the shell of described vibrational system and magnetic circuit system.In order to make product vibrating effect better, thus improve voice effect, described acoustical generator adopts the vibrating diaphragm and magnet steel that quality comparation is large, or the acoustical generator that employing two is same, but the vibrating diaphragm that quality is large can cause the problem of acoustical generator vibratility and reliability; Adopt two same generators to need larger space, but extra-thin system does not often have enough large space, cost is higher too.
Therefore, be necessary to provide a kind of new acoustical generator to solve the problems referred to above.
Summary of the invention
The technical problem that the present invention need solve is to provide a kind of acoustical generator that can improve voice effect.
According to the above-mentioned technical problem that need solve, devise a kind of acoustical generator, its involving vibrations system, magnetic circuit system and accommodate the shell of described vibrational system and magnetic circuit system, described magnetic circuit system comprises and has spatial accommodation and fixing magnet frame on the housing and the permanent magnet assembly that is housed in spatial accommodation, magnetic gap is provided with between described magnet frame and permanent magnet assembly, described vibrational system comprises and is attached to the first vibrating diaphragm on shell and separated by a distance and the second vibrating diaphragm, one end is connected with the first vibrating diaphragm and the speech coil framework that is connected with the second vibrating diaphragm of the other end, be wrapped in the first voice coil loudspeaker voice coil on speech coil framework and the second voice coil loudspeaker voice coil, described speech coil framework is arranged in described magnetic gap, described magnetic circuit system is between the first vibrating diaphragm and the second vibrating diaphragm.
Preferably, described first voice coil loudspeaker voice coil is connected with the second voice coil loudspeaker voice coil.
Preferably, described acoustical generator is also provided with the strutting piece supporting described permanent magnet assembly, described permanent magnet assembly is provided with through hole, described strutting piece comprise supports permanent magnets assembly body and from body two opposite face towards away from body direction extend the first protuberance and the second protuberance, described first protuberance be embedded in described through hole, described second protuberance is fixing on the housing.
Preferably, described shell is provided with lower cover, and be covered with the boss abutted with described body extended to described magnetic circuit system direction under described, described boss is provided with groove, and described second protuberance is housed in described groove.
Preferably, described second vibrating diaphragm comprises the second ring portion and the second ball top around described second periphery, ring portion, and the part in described second ring portion is folded between described body and boss, and described second ball top is connected with described speech coil framework.
Preferably, described magnet frame is provided with the outer wall of fixing annular on the housing, and described outer wall forms the spatial accommodation of the described permanent magnet assembly of collecting, and described permanent magnet assembly comprises two pole pieces and is folded in the permanent magnet in the middle of pole piece.
Beneficial effect of the present invention is: because described vibrational system comprises the first vibrating diaphragm separated by a distance and the second vibrating diaphragm, is connected the speech coil framework of the first vibrating diaphragm and the second vibrating diaphragm, is wrapped in the first voice coil loudspeaker voice coil on speech coil framework and the second voice coil loudspeaker voice coil, described magnetic circuit system is between the first vibrating diaphragm and the second vibrating diaphragm, owing to adopting speech coil framework, the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil are connected in series, structure is more stable at the volley to make voice coil loudspeaker voice coil, the vibrating effect of vibrating diaphragm is better, improves voice effect.
Accompanying drawing explanation
Fig. 1 is the stereogram of acoustical generator of the present invention;
Fig. 2 is the cutaway view of Fig. 1 along A-A line;
Fig. 3 is the three-dimensional exploded view of acoustical generator of the present invention.
Embodiment
Below in conjunction with drawings and embodiments, the invention will be further described.
With reference to shown in Fig. 1, be acoustical generator 100 provided by the invention, its involving vibrations system, magnetic circuit system and accommodate the shell 41 of described vibrational system and magnetic circuit system.
In the lump with reference to shown in Fig. 2 and Fig. 3, described vibrational system comprise be attached to the first vibrating diaphragm 11 on shell 41 and separated by a distance and the second vibrating diaphragm 12, one end be connected with the first vibrating diaphragm 11 and the other end be connected with the second vibrating diaphragm 12 speech coil framework 14, to be wrapped in the first voice coil loudspeaker voice coil 131 on speech coil framework 14 and the second voice coil loudspeaker voice coil 132, first voice coil loudspeaker voice coil 131 and the second voice coil loudspeaker voice coil 132 be connected in series and form interval.First vibrating diaphragm 11 is provided with the first ball top 112 and the first ring portion 111 around described first periphery, ball top 112, and the part in described first ring portion 111 is connected on shell 41.Second vibrating diaphragm 12 comprises the second ring portion 122 and the second ball top 121 around described second ring portion 122, and one end of speech coil framework 14 is fixed on the junction in the first ball top 112 and the first ring portion 111, and the other end is fixed on the second ball top 121.Second vibrating diaphragm 12 can play the effect of support to speech coil framework 14, and vibration balancing and reliability can be made to obtain larger improvement.
Described magnetic circuit system is between the first vibrating diaphragm 11 and the second vibrating diaphragm 12, and comprise the magnet frame 22 with spatial accommodation and the permanent magnet assembly 21 be housed in described spatial accommodation, described permanent magnet assembly 21 is provided with through hole 210, and described permanent magnet assembly 21 comprises two pole pieces 211 and is folded in the permanent magnet 212 in the middle of pole piece 211.
Described acoustical generator 100 is also provided with the strutting piece 31 supporting described permanent magnet assembly 21, described strutting piece 31 is provided with the body 313 abutted with described permanent magnet assembly 21 and the first protuberance 311 and the second protuberance 312 extended away from body 313 direction from body 313 liang of opposite faces courts, described first protuberance 311 be embedded in described through hole 210, described second protuberance 312 is fixed on described shell 41.Described shell is provided with lower cover 410 and covers with lower cover 410 frame 411 connect, described lower cover 410 be provided with extend to described magnetic circuit system direction and the boss 412 abutted with described body 313, described boss 412 is provided with groove 413, and described second protuberance 312 is housed in groove 413.Be housed in groove 413 by the second protuberance 312, boss 412 abuts body 313, can play fixed support effect to strutting piece 31; First protuberance 311 is embedded in through hole 211, and body 313 abuts with permanent magnet assembly 21, can play the effect of fixed support to permanent magnet assembly 21; The part in the second ring portion 122 is folded between boss 412 and body 313, can play the effect of fixed support to the second ring portion 122.
Because the first voice coil loudspeaker voice coil 131 and the second voice coil loudspeaker voice coil 132 utilize speech coil framework 14 to be connected in series, after then the first voice coil loudspeaker voice coil 131 and the second voice coil loudspeaker voice coil 132 being energized, first voice coil loudspeaker voice coil 131 and the second voice coil loudspeaker voice coil 132 drive the first vibrating diaphragm 11 and the second vibrating diaphragm 12 to do radial motion simultaneously, when vibrational system amplitude is comparatively large or at low frequency, according to active force and reaction force principle, one side's motion, the opposing party is certain to produce a reaction force to it, reduction is avoided making it reach inelastic region to its active force, can reduce the nonlinear distortion of pronouncing thus.On the other hand, after first voice coil loudspeaker voice coil 131 and the second voice coil loudspeaker voice coil 132 utilize speech coil framework 14 to be connected in series, can be complementary by the magnetic flux of the first voice coil loudspeaker voice coil 131 and the second voice coil loudspeaker voice coil 132 and inductance value, the magnetic flux of the first voice coil loudspeaker voice coil 131 and the second voice coil loudspeaker voice coil 132 is tended towards stability, thus make the vibration of the first vibrating diaphragm 11 and the second vibrating diaphragm 12 also more stable, and then make voice effect relatively good.In addition, vibrational system is between the first vibrating diaphragm 11 and the second vibrating diaphragm 12, first vibrating diaphragm 11 and the first voice coil loudspeaker voice coil 131 constitute the first vibrational system, second vibrating diaphragm 12 and the second voice coil loudspeaker voice coil 132 constitute the second vibrational system, first vibrational system and the second vibrational system share a magnetic circuit system, improve the utilance in magnetic field.
Protection scope of the present invention is not limited with above-mentioned execution mode, 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 (4)

1. an acoustical generator, its involving vibrations system, magnetic circuit system and accommodate the shell of described vibrational system and magnetic circuit system, described magnetic circuit system comprises and has spatial accommodation and fixing magnet frame on the housing and the permanent magnet assembly that is housed in spatial accommodation, magnetic gap is provided with between described magnet frame and permanent magnet assembly, it is characterized in that: described vibrational system comprises the first vibrational system, second vibrational system and speech coil framework, described first vibrational system comprises the first voice coil loudspeaker voice coil of the first vibrating diaphragm be attached on shell and described first diaphragm oscillations of the driving be wrapped on described speech coil framework, described second vibrational system comprises and being attached on shell and second vibrating diaphragm separated by a distance with described first vibrating diaphragm and be wrapped in the second voice coil loudspeaker voice coil of described second diaphragm oscillations of driving on described speech coil framework, described speech coil framework is arranged in described magnetic gap and one end is connected with the first vibrating diaphragm, the other end is connected with the second vibrating diaphragm, described first voice coil loudspeaker voice coil and described second voice coil loudspeaker voice coil are connected and form interval, described magnetic circuit system is between the first vibrating diaphragm and the second vibrating diaphragm, described acoustical generator is also provided with the strutting piece supporting described permanent magnet assembly, described permanent magnet assembly is provided with through hole, described strutting piece comprise supports permanent magnets assembly body and from body two opposite face towards away from body direction extend the first protuberance and the second protuberance, described first protuberance be embedded in described through hole, described second protuberance is fixing to abut on the housing.
2. acoustical generator according to claim 1, it is characterized in that: described shell is provided with lower cover, be covered with the boss abutted with described body extended to described magnetic circuit system direction under described, described boss is provided with groove, and described second protuberance is housed in described groove.
3. acoustical generator according to claim 2, it is characterized in that: described second vibrating diaphragm comprises the second ring portion and the second ball top around described second periphery, ring portion, the part in described second ring portion is folded between described body and boss, and described second ball top is connected with described speech coil framework.
4. acoustical generator according to claim 1, it is characterized in that: described magnet frame is provided with the outer wall of fixing annular on the housing, described outer wall forms the spatial accommodation of the described permanent magnet assembly of collecting, and described permanent magnet assembly comprises two pole pieces and is folded in the permanent magnet in the middle of pole piece.
CN201110198398.0A 2011-07-15 2011-07-15 Sounder Expired - Fee Related CN102333270B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110198398.0A CN102333270B (en) 2011-07-15 2011-07-15 Sounder

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Application Number Priority Date Filing Date Title
CN201110198398.0A CN102333270B (en) 2011-07-15 2011-07-15 Sounder

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Publication Number Publication Date
CN102333270A CN102333270A (en) 2012-01-25
CN102333270B true CN102333270B (en) 2015-06-24

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US9883290B2 (en) * 2014-12-31 2018-01-30 Skullcandy, Inc. Audio driver assembly, headphone including such an audio driver assembly, and related methods
CN106758680B (en) * 2016-12-18 2019-04-16 安徽绿谷新材料有限公司 A kind of plastic cement race track of lifting motion interest
CN106792394A (en) * 2017-01-24 2017-05-31 范邱燕 A kind of two-way loudspeaker and stereo set
CN108566606B (en) 2018-06-25 2020-03-17 歌尔股份有限公司 Sound production device and portable terminal
CN108924709B (en) * 2018-06-25 2020-12-08 歌尔股份有限公司 Sound production device and portable terminal
CN108632729B (en) * 2018-06-25 2020-08-21 歌尔股份有限公司 Sound production device and portable terminal
CN108632728B (en) * 2018-06-25 2020-08-11 歌尔股份有限公司 Sound production device and portable terminal
CN109275074B (en) * 2018-09-30 2020-12-22 瑞声科技(新加坡)有限公司 Sound production device
CN109495819B (en) * 2018-11-02 2020-11-20 歌尔股份有限公司 Sound production device and earphone
CN111698620A (en) * 2019-03-14 2020-09-22 歌尔股份有限公司 Electronic equipment
CN111698618A (en) * 2019-03-14 2020-09-22 歌尔股份有限公司 Sound production device and electronic equipment
CN111698621A (en) * 2019-03-14 2020-09-22 歌尔股份有限公司 Sound production device and electronic product
CN109905827B (en) * 2019-03-21 2021-01-29 维沃移动通信有限公司 Vibration sound production device and mobile terminal
CN110856087B (en) * 2019-11-25 2021-07-13 歌尔股份有限公司 Speaker and electronic apparatus
CN111405421B (en) * 2019-12-27 2021-08-10 瑞声科技(新加坡)有限公司 Sound production device
WO2021134188A1 (en) * 2019-12-30 2021-07-08 瑞声声学科技(深圳)有限公司 Sound generation device
CN111343542B (en) * 2020-03-05 2021-08-10 瑞声科技(新加坡)有限公司 Loudspeaker box
CN111629288B (en) * 2020-05-07 2021-11-05 瑞声科技(新加坡)有限公司 Loudspeaker box
CN111641906B (en) * 2020-06-24 2021-07-09 瑞声科技(新加坡)有限公司 Sound production device
CN213462306U (en) * 2020-07-06 2021-06-15 瑞声科技(新加坡)有限公司 Loudspeaker
CN112533112B (en) * 2020-12-25 2022-03-04 瑞声新能源发展(常州)有限公司科教城分公司 Double-magnetic circuit structure and sound production device

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CN2485745Y (en) * 2001-06-12 2002-04-10 黄顺君 Flat loudspeaker with bidirectional double cone diaphragms

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CN1388730A (en) * 2002-07-12 2003-01-01 晏明 Double-coil for double-sound cone loudspeaker

Patent Citations (1)

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CN2485745Y (en) * 2001-06-12 2002-04-10 黄顺君 Flat loudspeaker with bidirectional double cone diaphragms

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