CN205610929U - Improve miniature loudspeaker module group of reinforcing low frequency and rocking vibration - Google Patents
Improve miniature loudspeaker module group of reinforcing low frequency and rocking vibration Download PDFInfo
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- CN205610929U CN205610929U CN201620337769.7U CN201620337769U CN205610929U CN 205610929 U CN205610929 U CN 205610929U CN 201620337769 U CN201620337769 U CN 201620337769U CN 205610929 U CN205610929 U CN 205610929U
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Abstract
The utility model discloses an improve miniature loudspeaker module group of reinforcing low frequency and rocking vibration, epitheca, vocal subassembly and inferior valve including stack connection installation in proper order, the sound production subassembly includes annular plastics support, complex film, annular voice coil loudspeaker voice coil group, magnetic circuit assembly and magnetism cup, the upper portion of plastics support is arranged in to the complex film, places magnetic circuit assembly in the inside of plastics support, places voice coil loudspeaker voice coil group in magnetic circuit assembly, place the magnetism cup in the bottom of plastics support. The utility model discloses a miniature loudspeaker module group structural design " day font " magnetic structure to design supporting complex film and radiated the structure passively, improved full frequency channel sensitivity and low -frequency response effectively, controlled the material cost, do not shown the increase technology degree of difficulty. The utility model discloses can the limited space of make full use of, the sensitivity that has improved the product to can guarantee the qualification rate and the life -span of product.
Description
Technical field
This utility model belongs to the electro-acoustic element technical field in communication device, be specifically related to a kind of by improvement magnetic structure strengthen low frequency and avoid the Microspeaker module of vibrating diaphragm rocking vibration.
Background technology
Under the background that electronic technology is fast-developing, tracking exchage portable electric appts is towards light, thin direction change.As a example by large-screen mobile phone, flat board and notebook, its product is the thinnest, has certain screen size to meet the visual demand of people, and the thickness of therefore required Microspeaker module is more and more thinner, but can ensure that certain area.At present, the Microspeaker that mainly one chi footpath of application is bigger, but such scheme cannot make full use of the big and thin space characteristics of module, causes sensitivity the lowest.Simultaneously as vibrating diaphragm is relatively big, when the frequency range sounding of the big amplitude of low frequency, easily produce the most serious rocking vibration, the most currently mainly take to implant two micro loudspeaker units in module, make full use of the biggest area and produce higher sensitivity.But, this structure needs multiple micro loudspeaker units, and technology difficulty and cost are all greatly improved.It addition, the effect of Microspeaker shell is the sound wave separating the opposite in phase that the sound wave that vibrating diaphragm upwards sends sends with vibrating diaphragm bottom, it is to avoid acoustic short circuit phenomenon.But this box structure that closes has not made full use of the acoustic energy that the propelling movement air at the vibrating diaphragm back side sends, if the half acoustic energy that lost uses, will effectively promote the sensitivity of Microspeaker module, especially can promote the response of its low-frequency range.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of simple in construction, practical, be easy to the Miniature loudspeaker module structure of making technology.This utility model is by designing special magnetic structure and supporting integrated module, make Microspeaker module can promote overall sensitivity in the case of not strengthening complex process degree, and strengthen response and the reliability of low-frequency range, this utility model does not increase the Material Cost of Microspeaker module simultaneously, it is ensured that the acceptable degree in the market of product.
This utility model solves above-mentioned technical problem by the following technical programs,
A kind of improvement strengthens low frequency and the Microspeaker module of rocking vibration, connects, including being sequentially overlapped, upper casing 1, sounding component and the lower casing 11 installed, it is characterised in that
Described sounding component includes annular plastics support 9, composite membrane 2, circular voice coil group 4, magnetic circuit assembly and magnetic cup 10, and described composite membrane 2 is placed in the top of plastic stent 9, places magnetic circuit assembly in the inside of plastic stent 9, places voice coil loudspeaker voice coil group 4 in magnetic circuit assembly；Magnetic cup 10 is placed in the bottom of plastic stent 9.
As optimization, described magnetic circuit assembly and described magnetic cup 10 are a day font, described magnetic circuit assembly includes 2 annular center pole plates 5, the limit Magnet 7 of flat 3,7 cylindricalitys of " day font " limit pole plate and 2 annular middle Magnet 6, and described 7 blocks of limit Magnet 7 surround " day font " structure；In described circular voice coil group 4, center pole plate 5 and middle Magnet 6 are placed in superposition up and down successively, then are inserted in two openings of " day font " structure, form two magnetic circuits；On the top of " day font " structure, limit pole plate 3 is set；Two through holes of described magnetic cup 10 mate two openings of correspondence " day font " structure respectively；
As 1.5 times that limit Magnet 7 width is other limit Magnet 7 in the middle of optimization, described " day font " structure；
As optimization, also 2 passive radiation films 8, in " day font " bottom of structure, two opening parts dispose a described passive radiation film 8 respectively；
As optimization, the sidewall of described upper casing 1 is provided with side and speaks sounding mouth；
As optimization, described lower casing 11 is provided with two through holes with described magnetic cup 10 and mates corresponding low frequency sounding mouth respectively.
Miniature loudspeaker module structure designed by this utility model devises " day font " magnetic structure, and devise supporting composite membrane and passive irradiation structure, effectively improve full frequency band sensitivity and LF-response, control Material Cost, do not dramatically increase technology difficulty.This utility model can make full use of limited space, improves the sensitivity of product, and can guarantee that qualification rate and the life-span of product.
Accompanying drawing explanation
Fig. 1 is the Miniature loudspeaker module structure broken away view designed by this utility model；
Fig. 2 is the Miniature loudspeaker module structure outside drawing designed by this utility model；
Fig. 3 is the day font magnetic structure figure designed by this utility model；
Fig. 4 is the sectional view of Miniature loudspeaker module structure described in the utility model；
In figure: 1. upper casing, 2. composite membrane, 3. limit pole plate, 4. voice coil loudspeaker voice coil group, 5. Magnet, 7. limit Magnet in center pole plate 6., the most passively radiate film, 9. plastic stent, 10. magnetic cup, 11. lower casings.
Detailed description of the invention
Below in conjunction with embodiment and compare accompanying drawing the utility model is described in further detail.
A kind of improvement strengthens low frequency and the Microspeaker module of rocking vibration, connects, including being sequentially overlapped, upper casing 1, sounding component and the lower casing 11 installed,
Described sounding component includes annular plastics support 9, composite membrane 2, circular voice coil group 4, magnetic circuit assembly and magnetic cup 10, and described composite membrane 2 is placed in the top of plastic stent 9, places magnetic circuit assembly in the inside of plastic stent 9, places voice coil loudspeaker voice coil group 4 in magnetic circuit assembly；
Day font magnetic cup 10 is placed in the bottom of plastic stent 9；
Described magnetic circuit assembly is day font, described magnetic circuit assembly includes 2 annular center pole plates 5, the limit Magnet 7 of flat 3,7 cylindricalitys of " day font " limit pole plate and 2 annular middle Magnet 6, described 7 blocks of limit Magnet 7 surround " day font " structure, as it is shown on figure 3,1.5 times that limit Magnet 7 width is other limit Magnet 7 that described " day font " structure is middle；In described circular voice coil group 4, center pole plate 5 and middle Magnet 6 are placed in superposition up and down successively, then are inserted in two openings 102,103 of " day font " structure, form two magnetic circuits；On the top of " day font " structure, limit pole plate 3 is set；Two through holes of described magnetic cup 10 mate two openings of correspondence " day font " structure respectively；
Also have 2 passive radiation films 8, in " day font " bottom of structure, two opening parts be stained with a described passive radiation film 8 respectively, be used for promote LF-response；Described lower casing 11 is provided with two through holes with described magnetic cup 10 and mates corresponding low frequency sounding mouth 104,105 respectively；
In view of the limitations of current smart mobile phone/flat panel products, the sidewall of described upper casing 1 is provided with side and speaks sounding mouth 101, to reduce the height of product, is suitable as the microphone device of the communication tools such as smart mobile phone, flat board or notebook.
Magnetic circuit assembly of the present utility model forms two magnetic circuits, two magnetic circuit loops have shared a middle limit Magnet 7, this example utility model determines shared 1.5 times that limit Magnet 7 width is other limit Magnet 7 by design optimization, the most both saved Magnet usage amount, in turn ensure that magnetic flux occurred without saturated phenomenon herein.Two magnetic circuits can accommodate a voice coil loudspeaker voice coil 4 respectively, in the case of keeping resistance certain, two voice coil loudspeaker voice coils 4 can be made to connect, and each voice coil loudspeaker voice coil 4 respectively only has half resistance and the half weight of common single-tone circle.Thus, gross mass and the resistance of voice coil loudspeaker voice coil 4 does not increase, it is ensured that the parameter constants such as Mms and Rdc of product, and owing to voice coil loudspeaker voice coil is more in the middle of magnetic gap, the BL value of product can have a distinct increment.Meanwhile, two voice coil loudspeaker voice coils 4 all stick at composite membrane 2 bottom, and composite membrane 2 surrounding glue is fixed on plastic stent 9.Compared to the composite membrane 2 of single magnetic structure, the area of the composite membrane 2 of " day font " magnetic structure adds nearly twice, such that it is able to make the sensitivity entirety of speaker module increase about 6dB, is greatly improved the loudness of Microspeaker module.In addition, it is contemplated that the limitations of current smart mobile phone/flat panel products, the upper casing 1 of this example utility model is designed with side and goes out sound structure, thus reduces the height of product.
This utility model devises " day font " magnetic structure, this magnetic structure can accommodate two voice coil loudspeaker voice coils, so can make the vibrating diaphragm on voice coil loudspeaker voice coil that the phenomenon of rocking vibration does not occur in low-frequency range, effectively improve full frequency band sensitivity, control Material Cost, improve again the module reliability in low-frequency range.So, utility model can.
This utility model improves the ultra-thin micro speaker module of low frequency performance and vibrating diaphragm rocking vibration by magnetic Circuit Design scheme cleverly.Two voice coil loudspeaker voice coils are accommodated by day font magnetic Circuit Design, two voice coil loudspeaker voice coils can promote the vibrating diaphragm of this longer Microspeaker to be balanced stable piston vibration, add driving force, avoid the rocking vibration situation caused because of long excessive, the vibration area increase of vibrating diaphragm, so that the sensitivity of Microspeaker module is greatly promoted；Meanwhile, big vibrating diaphragm can reduce the amplitude of voice coil loudspeaker voice coil under certain loudness, thus reduces the low-frequency distortion of Microspeaker.It addition, pass through at magnetic circuit central aperture and design by dynamic diaphragm, reasonably make use of the sound that the speaker diaphragm back side produces, thus effectively enhance the low frequency of Microspeaker, decrease the probability that noise occurs.Additionally, due to the magnetic line of force has skin, Magnet perforate can allow Microspeaker reduce under Magnet consumption, and performance is not greatly lowered.
This utility model have employed the design of integration.Bottom crown is the most bonding with back cover, and each Magnet, each top crown, voice coil loudspeaker voice coil, vibrating diaphragm, Dome can be completed to assemble by a master operation, simplify technological process, and reduce module thickness.This utility model all has through hole in the middle of middle Magnet, middle pole plate, magnetic cup, and the rubber fabric structure in lower casing corresponding Position Design, and designs passive radiation film and make it stick at corresponding rubber fabric.The sound wave that so the vibrating diaphragm back side sends can promote passive radiation film to send sound through the mesopore of magnetic circuit, thus play the effect strengthening all-bottom sound.
This utility model is by special magnetic structure and the passive design radiating film, and other assembly of module is carried out corresponding improvement design, can make full use of the space of complete machine to be obviously improved sensitivity and the LF-response of module, the support of two voice coil loudspeaker voice coils simultaneously is avoided that the noise phenomenon that low-frequency range occurs because of rocking vibration.This utility model is under the complexity premise not strengthening making technology, in the case of ensureing that the most again product cost does not increases substantially, effectively improve the performance of product, make full use of limited space, improve the sensitivity of product, and can guarantee that qualification rate and the life-span of product.
Claims (6)
1. improve enhancing low frequency and a Microspeaker module for rocking vibration, connect, including being sequentially overlapped, upper casing, sounding component and the lower casing installed, it is characterised in that
Described sounding component includes annular plastics support, composite membrane, circular voice coil group, magnetic circuit assembly and magnetic cup, and described composite membrane is placed in the top of plastic stent, places magnetic circuit assembly in the inside of plastic stent, places voice coil loudspeaker voice coil group in magnetic circuit assembly；Magnetic cup is placed in the bottom of plastic stent.
2. Microspeaker module as claimed in claim 1, it is characterized in that, described magnetic circuit assembly and described magnetic cup are a day font, described magnetic circuit assembly includes 2 annular center pole plates, flat " day font " limit pole plate, the limit Magnet of 7 cylindricalitys and 2 annular middle Magnet, and described 7 blocks of limit Magnet surround " day font " structure；In described circular voice coil group, center pole plate and middle Magnet are placed in superposition up and down successively, then are inserted in two openings of " day font " structure, form two magnetic circuits；On the top of " day font " structure, limit pole plate is set；Two through holes of described magnetic cup mate two openings of correspondence " day font " structure respectively.
3. Microspeaker module as claimed in claim 2, it is characterised in that limit magnet width is other limit Magnet 1.5 times in the middle of described " day font " structure.
4. Microspeaker module as claimed in claim 2, it is characterised in that also have 2 passive radiation films, in " day font " bottom of structure, two opening parts dispose a described passive radiation film respectively.
5. Microspeaker module as claimed in claim 2, it is characterised in that described lower casing is provided with two through holes with described magnetic cup and mates corresponding low frequency sounding mouth respectively.
6. Microspeaker module as claimed in claim 1, it is characterised in that the sidewall of described upper casing is provided with side and speaks sounding mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620337769.7U CN205610929U (en) | 2016-04-21 | 2016-04-21 | Improve miniature loudspeaker module group of reinforcing low frequency and rocking vibration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620337769.7U CN205610929U (en) | 2016-04-21 | 2016-04-21 | Improve miniature loudspeaker module group of reinforcing low frequency and rocking vibration |
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| CN205610929U true CN205610929U (en) | 2016-09-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753290A (en) * | 2019-09-30 | 2020-02-04 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110753292A (en) * | 2019-09-30 | 2020-02-04 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110784809A (en) * | 2019-09-30 | 2020-02-11 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110933567A (en) * | 2019-12-02 | 2020-03-27 | 歌尔股份有限公司 | Vibration sound production device |
| CN111417057A (en) * | 2020-03-30 | 2020-07-14 | 歌尔股份有限公司 | Micro speaker module, micro speaker module array and audio-visual equipment |
| CN112887458A (en) * | 2021-01-21 | 2021-06-01 | 维沃移动通信有限公司 | Loudspeaker module and electronic equipment |
-
2016
- 2016-04-21 CN CN201620337769.7U patent/CN205610929U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753290A (en) * | 2019-09-30 | 2020-02-04 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110753292A (en) * | 2019-09-30 | 2020-02-04 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110784809A (en) * | 2019-09-30 | 2020-02-11 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110753292B (en) * | 2019-09-30 | 2021-07-13 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110784809B (en) * | 2019-09-30 | 2021-11-26 | 歌尔科技有限公司 | Sound generating device, acoustic module provided with same and electronic equipment |
| CN110933567A (en) * | 2019-12-02 | 2020-03-27 | 歌尔股份有限公司 | Vibration sound production device |
| CN110933567B (en) * | 2019-12-02 | 2021-07-09 | 歌尔股份有限公司 | Vibration sound production device |
| CN111417057A (en) * | 2020-03-30 | 2020-07-14 | 歌尔股份有限公司 | Micro speaker module, micro speaker module array and audio-visual equipment |
| CN111417057B (en) * | 2020-03-30 | 2022-03-15 | 歌尔股份有限公司 | Micro speaker module, micro speaker module array and audio-visual equipment |
| CN112887458A (en) * | 2021-01-21 | 2021-06-01 | 维沃移动通信有限公司 | Loudspeaker module and electronic equipment |
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| C14 | Grant of patent or utility model | ||
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Address after: 330096 Nanchang high tech Zone, Jiangxi, Jingdong Avenue, No. 1699 Patentee after: Jiangxi LIAN electronic Limited by Share Ltd Address before: 330096 Nanchang high tech Zone, Jiangxi, Jingdong Avenue, No. 1699 Patentee before: Jiangxi Lianchuang Hongsheng Electronics Co.,Ltd. |