CN201718025U - Micro speaker array module - Google Patents
Micro speaker array module Download PDFInfo
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- CN201718025U CN201718025U CN2010202801228U CN201020280122U CN201718025U CN 201718025 U CN201718025 U CN 201718025U CN 2010202801228 U CN2010202801228 U CN 2010202801228U CN 201020280122 U CN201020280122 U CN 201020280122U CN 201718025 U CN201718025 U CN 201718025U
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- microspeaker
- array module
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- speakers
- micro speaker
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Abstract
The utility model discloses a micro speaker array module comprising a plurality of micro speakers, which belongs to the technical field of speakers or public address systems, and is used for solving the problem that the speaker in the prior art can not meet the ultrathin requirements on electric appliances. The micro speaker array module comprises at least two audio cavities fabricated on a same body, wherein a micro speaker is hermetically arranged inside each audio cavity, and the micro speakers are connected through a wire. The micro speaker array module realizes array and ultrathin speakers and can be used in ultrathin electric appliances of different types.
Description
Technical field
The utility model belongs to loud speaker or public address system technical field, relates in particular to a kind of or Microspeaker array module of being in series in parallel by a plurality of Microspeakers.
Background technology
Usually use traditional heavy caliber, supersound projector on common in the market panel TV, notebook computer and other digital products, the sound system, its thickness is all above 20mm.And the consumer is more and more thinner to the thickness requirement of electronic products such as panel TV, notebook computer now, and the screen thickness of panel TV has accomplished below the 20mm that traditional loud speaker can't be built into the inside of above product and system especially now.Even do thin because the restriction of the self structure of conventional loudspeakers, the characteristic of loud speaker most critical--sensitivity meeting drop to 70DB (1W, 1m) below, can't satisfy 84DB (1w, national standard requirement 1m).Because the vibrational system of conventional loudspeakers adopts cone, sheet usually, its vibrational system is heavier, so that magnet must be done is bigger, thicker, just can have enough actuating forces to guarantee the sensitivity of loud speaker.Yet, if conventional loudspeakers is done thin, certainly will compress the size of parts, magnet is little, and actuating force is thereupon little, thereby causes the reduction of sensitivity.The Microspeaker vibrational system adopts mylar (wheat is drawn) film, light weight, and very little actuating force just can reach higher sensitivity.But single Microspeaker sound is too low, can't satisfy the requirement of user to volume.
Summary of the invention
The objective of the invention is to, provide a kind of Microspeaker array module in order to solving the requirement of ultra-thinization of pointing out in the above-mentioned background technology of conventional loudspeakers incompatibility electric equipment products, and single Microspeaker can not provide the problem of enough volume again.
A kind of Microspeaker array module is characterized in that described Microspeaker array module comprises at least 2 sound chambeies that are produced on the same body, and 1 Microspeaker is installed in sealing in each sound chamber; Microspeaker connects by lead.
Described Microspeaker connects the concrete connected mode that adopts parallel connection, series connection or connection in series-parallel to mix by lead.
The thickness of described body is 5mm-20mm.
The thickness of described Microspeaker is 2mm-6mm, and length, width or diameter are less than 40mm.
Beneficial effect of the present invention is that Microspeaker array module has been realized the array and the slimming of loud speaker, can be applied in the dissimilar ultra-thin electric equipment products; Simultaneously, Microspeaker vibrational system light weight, the electro-acoustic conversion efficiency height of a plurality of Microspeakers, Microspeaker array module is higher than the acoustic pressure of ventional loudspeakers.
Description of drawings
Fig. 1 is a Microspeaker array module schematic diagram;
Fig. 2 is the Microspeaker schematic diagram;
Fig. 3 is that Microspeaker connects equivalent circuit diagram;
Fig. 4 is Microspeaker array module and conventional loudspeakers acoustic pressure comparison diagram.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation only is exemplary, rather than in order to limit scope of the present utility model and application thereof.
Present embodiment is that example describes with 4 sound chambeies that are produced on the same body.Fig. 1 is a Microspeaker array module schematic diagram, wherein, (a) is Microspeaker array module cutaway view, (b) is Microspeaker array module vertical view.Among Fig. 1, Microspeaker array module comprises at least two sound chambeies 2 that are produced on the same body 1, and 1 Microspeaker is installed in sealing in each sound chamber.Before Microspeaker is installed, utilize LEAP audio amplifier design system to carry out design of Simulation earlier, by the volume of analog computation sound chamber cavity and the equivalent volume of Microspeaker, carry out the cavity optimal design, make reproducibility, the reproducibility of sound audio reach best.The material of body generally adopts the material of conventional loudspeakers sound chamber body, comprises steel, iron, aluminium or other alloy and various plastic material, and the length of body is 100mm-500mm, and thickness is 5mm-20mm, width 10mm-50mm.
Fig. 2 is the Microspeaker schematic diagram.Among Fig. 2, (a) being square Microspeaker, (b) is circular Microspeaker, (c) is oval Microspeaker.In the utility model, as required, Microspeaker can adopt the design of multiple shape, comprises the square Microspeaker among Fig. 2, circular Microspeaker or oval Microspeaker and other shapes.And the classification of each Microspeaker can be identical, also can be different.The thickness of Microspeaker is 2mm-6mm; If square Microspeaker, its length and width are less than 40mm; If circular Microspeaker, its diameter is less than 40mm.
Fig. 3 is that Microspeaker connects equivalent circuit diagram.In specific implementation process, can be connected in series by lead between each Microspeaker in the Microspeaker array module, also can be connected in parallel by lead, can also mix connection by the lead connection in series-parallel.No matter adopt which kind of type of attachment, the impedance of the Microspeaker after all will as far as possible guaranteeing to connect equates with the output impedance of the electrical equipment that uses this Microspeaker array module or is approximate, because so just can make Microspeaker array module obtain maximum power, thereby has best sensitivity.Among Fig. 3,4 Microspeakers adopt two kinds of dissimilar Microspeakers, and wherein, it is R that two Microspeakers adopt impedance
xMicrospeaker, in addition two to adopt impedances be R
yMicrospeaker.4 connected modes that Microspeaker adopts connection in series-parallel to mix, two impedances are R
xThe Microspeaker parallel connection, two other impedance is R
yThe Microspeaker parallel connection, the Microspeaker of two groups of parallel connections series connection afterwards.Among Fig. 3, R is the output impedance of the electrical equipment of this Microspeaker array module of use, and U is a supply voltage.As can be seen from Figure 3, the electric current of whole equivalent electric circuit is
If the impedance of Microspeaker array module is R ', then have
Then
The power of Microspeaker array module is so:
As can be seen from the above equation,, R ' is equated with R, even the impedance of Microspeaker array module equates with the output impedance of the electrical equipment that uses this Microspeaker array module for making the power maximum of Microspeaker array module.
Fig. 4 is Microspeaker array module and conventional loudspeakers acoustic pressure comparison diagram.Among Fig. 4, since Microspeaker vibrational system light weight, the electro-acoustic conversion efficiency height, the output of same complete machine electrical power, Microspeaker array module acoustic pressure is higher, reaches the purpose of energy savings.Through experimental test, the acoustic pressure that the array module of 4 Microspeaker compositions produces under the electrical power of 2w drives can reach traditional loud speaker 4w signal of telecommunication and drive the acoustic pressure that produces.
In the utility model, when audio electrical signal entered Microspeaker array module, the Microspeaker in the chamber was sounded, and was radiated in the space by array module sound hole.The loud speaker of present panel TV can only be placed on the below of complete machine because of the structural limitations of factors such as thickness, and vocal hole is downward, and audience (spectators) is in television set the place ahead, and test by experiment draws down and speaks than just going out low 10 DB of audio sensitivity.Because the structure of the Microspeaker array module that utility model provides has realized slimming, therefore the application of Microspeaker on ultra-thin panel TV and other sound systems becomes a reality, can be implemented on the complete machine optional position puts, can not be subjected to the restriction of structure, as adopt positive direction to settle, can make big 10 DB of the present conventional loudspeakers of remolding sensitivity, the sound intensity effect is better.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (4)
1. a Microspeaker array module is characterized in that described Microspeaker array module comprises at least 2 sound chambeies that are produced on the same body, and 1 Microspeaker is installed in sealing in each sound chamber; Microspeaker connects by lead.
2. a kind of Microspeaker array module according to claim 1 is characterized in that described Microspeaker connects the concrete connected mode that adopts parallel connection, series connection or connection in series-parallel to mix by lead.
3. a kind of Microspeaker array module according to claim 1, the thickness that it is characterized in that described body is 5mm-20mm.
4. a kind of Microspeaker array module according to claim 1, the thickness that it is characterized in that described Microspeaker is 2mm-6mm, length, width or diameter are less than 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202801228U CN201718025U (en) | 2010-08-03 | 2010-08-03 | Micro speaker array module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202801228U CN201718025U (en) | 2010-08-03 | 2010-08-03 | Micro speaker array module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201718025U true CN201718025U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202801228U Expired - Lifetime CN201718025U (en) | 2010-08-03 | 2010-08-03 | Micro speaker array module |
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| CN (1) | CN201718025U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444202A (en) * | 2011-03-23 | 2013-12-11 | 松下电器产业株式会社 | Loudspeaker, electronic apparatus using same, and mobile apparatus |
| CN106804020A (en) * | 2017-01-20 | 2017-06-06 | 瑞声科技（南京）有限公司 | Vibrative sound producing device |
| CN107005755A (en) * | 2014-10-09 | 2017-08-01 | 弗劳恩霍夫应用研究促进协会 | Loudspeaker array |
| CN108616794A (en) * | 2018-04-25 | 2018-10-02 | 京东方科技集团股份有限公司 | A kind of pronunciation device and preparation method thereof |
-
2010
- 2010-08-03 CN CN2010202801228U patent/CN201718025U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444202A (en) * | 2011-03-23 | 2013-12-11 | 松下电器产业株式会社 | Loudspeaker, electronic apparatus using same, and mobile apparatus |
| CN103444202B (en) * | 2011-03-23 | 2016-03-09 | 松下知识产权经营株式会社 | Loud speaker, the electronic equipment employing this loud speaker and mobile body device |
| CN107005755A (en) * | 2014-10-09 | 2017-08-01 | 弗劳恩霍夫应用研究促进协会 | Loudspeaker array |
| EP3205117A1 (en) * | 2014-10-09 | 2017-08-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Loudspeaker array |
| CN107005755B (en) * | 2014-10-09 | 2020-05-15 | 弗劳恩霍夫应用研究促进协会 | Loudspeaker array |
| CN106804020A (en) * | 2017-01-20 | 2017-06-06 | 瑞声科技（南京）有限公司 | Vibrative sound producing device |
| CN108616794A (en) * | 2018-04-25 | 2018-10-02 | 京东方科技集团股份有限公司 | A kind of pronunciation device and preparation method thereof |
| CN108616794B (en) * | 2018-04-25 | 2020-07-24 | 京东方科技集团股份有限公司 | Sound production device and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110119 |