CN104869515A - High-fidelity sound box in coordination of moving coil loudspeaker and piezoelectric loudspeaker - Google Patents
High-fidelity sound box in coordination of moving coil loudspeaker and piezoelectric loudspeaker Download PDFInfo
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- CN104869515A CN104869515A CN201510309999.2A CN201510309999A CN104869515A CN 104869515 A CN104869515 A CN 104869515A CN 201510309999 A CN201510309999 A CN 201510309999A CN 104869515 A CN104869515 A CN 104869515A
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- loudspeaker
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Abstract
The invention provides a high-fidelity sound box in coordination of moving coil loudspeaker and piezoelectric loudspeaker. The moving coil loudspeaker is arranged at a sound outlet position, and a piezoelectric loudspeaker is arranged in parallel, a front sounding surface of the loudspeaker and the inner surface of an upper shell form a closed front cavity, a back sounding surface of the loudspeaker and upper and lower residual shell form a back cavity, two loudspeaker are connected in parallel, the moving coil loudspeaker is used as a main sounding unit and responsible for low and medium frequency, the piezoelectric loudspeaker is responsible for high frequency; the moving coil loudspeaker and the piezoelectric loudspeaker are put into a closed sound box to form coupling effect; the paraelectricity of sounding apparatus is improved, the sound resistance is reduced, the full frequency band is compensated, and the aim of improving the sound quality is achieved.
Description
Technical field
The present invention relates to Portable mobile electronic device, be specifically related to Hi-Fi sound-box.
Background technology
Along with mobile phone, the popularity rate of portable mobile apparatus is more and more higher, market is also more and more higher for its requirement, had higher pursuit for audio, current mobile phone market generally adopts traditional moving-coil speaker loading miniature loudspeaker box to coordinate sound chip and D class power amplifier to improve sound quality problem in audio.Due to design feature and the performance of traditional moving-coil speaker itself, it is caused highly to be difficult to be reduced to 2.0 times, high frequency, hyperfrequency are difficult to reach higher resonance frequency, in the case, the speaker product that market active demand is ultra-thin, high frequency, hyperfrequency expressive ability are good, and for fear of the theoretical obstacle existing for current piezoelectric ceramic loudspeaker and technology barriers, although piezoelectric speaker has ultra-thin, high frequency, characteristic that hyperfrequency expressive force is strong, wherein the problem of low frequency behavior ability also highlights.And both are combined load in miniature containment housing and supply portable type electronic product and use, be technical characterstic of the present invention and advantage.
Summary of the invention
The object of this invention is to provide a kind of moving-coil speaker and coordinate piezoelectric speaker Hi-Fi sound-box, by coil-moving speaker and piezoelectric speaker parallel connection, moving-coil type provides medium and low frequency, piezoelectric speaker provides high frequency, hyperfrequency, and both are loaded airtight audio amplifier, forms coupling effect, improve the compliance of microphone device, reduce acoustic resistance, compensate full frequency band, reach the object improving tonequality.
Technical scheme of the present invention is: a kind of moving-coil speaker coordinates piezoelectric speaker Hi-Fi sound-box, it is characterized in that: in sound mouth position, moving-coil speaker is set, front sounding face and the upper casing inner surface of loud speaker form closed ante-chamber, the rear sounding face of loud speaker and remain housing up and down and form back cavity, closed cavity is put into by after moving-coil speaker and piezoelectric speaker parallel connection, load in airtight audio amplifier and form coupling effect, with moving-coil speaker for main phonation unit, be responsible for medium and low frequency, high frequency is responsible for by piezoelectric speaker, certain compensation is carried out to medium and low frequency, thus reach the effect improving tonequality.
The present invention is mainly for mobile phone, and portable mobile apparatus provides Audio solution, so keep consistent with interior of mobile phone mechanical structure in size with structure, and adopt modular designs, connector can match multiple connected mode.
According to the equipment such as mobile phone external go out phoneme put, moving-coil speaker is set in sound mouth position, places piezoelectric speaker side by side, front sounding face and the upper casing inner surface of loud speaker form closed ante-chamber, the rear sounding face of loud speaker and remain housing up and down and form back cavity, by two loud speakers, carries out parallel connection, with moving-coil speaker for main phonation unit, be responsible for medium and low frequency, high frequency is responsible for by piezoelectric speaker, passes through closed cavity, certain compensation is carried out to medium and low frequency, thus reaches the effect improving tonequality.
Accompanying drawing explanation
Figure 1 ?1 be front schematic view of the present invention.
Figure 1 ?2 are schematic rear views of the present invention.
Figure 2 ?1 be cavity schematic diagram of the present invention.
Figure 2 ?2 are sound transmission figure of the present invention.
Fig. 3 is installation diagram of the present invention.
Fig. 4 is equivalent circuit diagram of the present invention.
Figure 5 ?1 is mobile phone moving-coil speaker of the present invention and piezoelectric speaker and header body SPL test curve figure.
Figure 5 ?2 is mobile phone moving-coil speaker of the present invention and piezoelectric speaker and header body THD test curve figure.
Drawing reference numeral: 1 ?moving-coil speaker 2 ?piezoelectric speaker 3 ?ante-chamber 4 ?back cavity 5 ?fore shell 6 ?back cover
Embodiment
According to Client handset internal structure, design suitable inside audio amplifier profile, need to dodge each electronic devices and components, electromagnetic compatibility, other components and parts install to arrange etc. supporting.Empty box inner structure, calculate internal volume, dischargeable capacity, acoustic compliance, internal damping and quality factor, according to above parameter, choose the moving-coil speaker and piezoelectric speaker that adapt, according to the mechanical equivalent of light feature of two loud speakers, at audio amplifier indoor design mounting structure harmony field structure.As shown in Figure 4, wherein Re is acoustic damping equivalent resistance.
As figure 1 ?1, figure 1 ?2, figure 2 ?1, figure 2 ?shown in 2, according to the equipment such as mobile phone external go out phoneme put, in sound mouth position, moving-coil speaker 1 is set, placement piezoelectric speaker 2 arranged side by side, the front sounding face of loud speaker and upper casing inner surface form closed ante-chamber 3, the rear sounding face of loud speaker and remain housing up and down and form back cavity 4, two loud speakers are carried out parallel connection, with moving-coil speaker for main phonation unit, be responsible for medium and low frequency, high frequency is responsible for by piezoelectric speaker, passes through closed cavity, certain compensation is carried out to medium and low frequency, thus reaches the effect improving tonequality.
As shown in Figure 3, moving-coil speaker 1 and piezoelectric speaker 2 are loaded audio amplifier fore shell 5 simultaneously, with Environment-friendlyglue glue sealing ante-chamber, then two loud speakers (connected mode is optional) are connected, fixing internal connecting line, cover back cover 6, seal front and rear housings with glue or ultrasonic waves mode, line outlet position is with glue sealing.
Use 2V voltage, 10CM distance, SOUNDCHECK7.0 test platform is tested, draw as figure 5 ?1 and and figure 5 ?the resolution chart shown in 2, test effect illustrates that distortion is less than 5%, and high frequency compensation is effective.
Claims (1)
1. a moving-coil speaker coordinates piezoelectric speaker Hi-Fi sound-box, it is characterized in that: moving-coil speaker (1) is set in sound mouth position, the front sounding face of loud speaker and upper casing inner surface form closed ante-chamber (3), the rear sounding face of loud speaker and remain housing up and down and form back cavity (4), closed cavity is put into by after moving-coil speaker (1) and piezoelectric speaker (2) parallel connection, load in airtight audio amplifier and form coupling effect, be main phonation unit with moving-coil speaker (1), be responsible for medium and low frequency, high frequency is responsible for by piezoelectric speaker (2), certain compensation is carried out to medium and low frequency, thus reach the effect improving tonequality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309999.2A CN104869515A (en) | 2015-06-08 | 2015-06-08 | High-fidelity sound box in coordination of moving coil loudspeaker and piezoelectric loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309999.2A CN104869515A (en) | 2015-06-08 | 2015-06-08 | High-fidelity sound box in coordination of moving coil loudspeaker and piezoelectric loudspeaker |
Publications (1)
| Publication Number | Publication Date |
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| CN104869515A true CN104869515A (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510309999.2A Pending CN104869515A (en) | 2015-06-08 | 2015-06-08 | High-fidelity sound box in coordination of moving coil loudspeaker and piezoelectric loudspeaker |
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Cited By (9)
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| WO2020220720A1 (en) * | 2019-04-30 | 2020-11-05 | 深圳市韶音科技有限公司 | Acoustic output apparatus |
| WO2021139632A1 (en) * | 2020-01-08 | 2021-07-15 | 华为技术有限公司 | Loudspeaker, loudspeaker module, and electronic device |
| US11218582B2 (en) | 2017-02-08 | 2022-01-04 | Samsung Electronics Co., Ltd. | Electronic device |
| US11570556B2 (en) | 2014-01-06 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11582564B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11582563B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11589171B2 (en) | 2014-01-06 | 2023-02-21 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11617045B2 (en) | 2014-01-06 | 2023-03-28 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11706574B2 (en) | 2014-01-06 | 2023-07-18 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11570556B2 (en) | 2014-01-06 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11706574B2 (en) | 2014-01-06 | 2023-07-18 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11617045B2 (en) | 2014-01-06 | 2023-03-28 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11589171B2 (en) | 2014-01-06 | 2023-02-21 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11582563B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11582564B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
| US11218582B2 (en) | 2017-02-08 | 2022-01-04 | Samsung Electronics Co., Ltd. | Electronic device |
| US11445281B2 (en) | 2019-04-30 | 2022-09-13 | Shenzhen Shokz Co., Ltd. | Acoustic output apparatus |
| US11540037B2 (en) | 2019-04-30 | 2022-12-27 | Shenzhen Shokz Co., Ltd. | Open earphone |
| JP2022531256A (en) * | 2019-04-30 | 2022-07-06 | シェンツェン・ショックス・カンパニー・リミテッド | Acoustic output device and its method |
| JP2022531254A (en) * | 2019-04-30 | 2022-07-06 | シェンツェン・ショックス・カンパニー・リミテッド | Acoustic output device |
| US11425481B2 (en) | 2019-04-30 | 2022-08-23 | Shenzhen Shokz Co., Ltd. | Open earphone |
| WO2020220720A1 (en) * | 2019-04-30 | 2020-11-05 | 深圳市韶音科技有限公司 | Acoustic output apparatus |
| US11496824B2 (en) | 2019-04-30 | 2022-11-08 | Shenzhen Shokz Co., Ltd. | Acoustic output apparatus with drivers in multiple frequency ranges and bluetooth low energy receiver |
| US11516572B2 (en) | 2019-04-30 | 2022-11-29 | Shenzhen Shokz Co., Ltd. | Acoustic output device |
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| JP2022530813A (en) * | 2019-04-30 | 2022-07-01 | シェンツェン・ショックス・カンパニー・リミテッド | Acoustic output device |
| US11356763B2 (en) | 2019-04-30 | 2022-06-07 | Shenzhen Shokz Co., Ltd. | Open earphone |
| US11570536B2 (en) | 2019-04-30 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Acoustic output apparatus and methods thereof |
| US11178477B2 (en) | 2019-04-30 | 2021-11-16 | Shenzhen Voxtech Co., Ltd. | Acoustic output apparatus with a plurality of acoustic drivers and methods thereof |
| US11159870B2 (en) | 2019-04-30 | 2021-10-26 | Shenzhen Voxtech Co., Ltd. | Acoustic output apparatus |
| US11122359B2 (en) | 2019-04-30 | 2021-09-14 | Shenzhen Voxtech Co., Ltd. | Acoustic output apparatus and method thereof |
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| JP7333829B2 (en) | 2019-04-30 | 2023-08-25 | シェンツェン・ショックス・カンパニー・リミテッド | sound output device |
| WO2021139632A1 (en) * | 2020-01-08 | 2021-07-15 | 华为技术有限公司 | Loudspeaker, loudspeaker module, and electronic device |
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Application publication date: 20150826 |