CN101374371B - Improved vibrating system for flat-plate loudspeaker - Google Patents
Improved vibrating system for flat-plate loudspeaker Download PDFInfo
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- CN101374371B CN101374371B CN2007100298260A CN200710029826A CN101374371B CN 101374371 B CN101374371 B CN 101374371B CN 2007100298260 A CN2007100298260 A CN 2007100298260A CN 200710029826 A CN200710029826 A CN 200710029826A CN 101374371 B CN101374371 B CN 101374371B
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- voice coil
- plate
- sound film
- loudspeaker voice
- speech
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Abstract
The invention provides an improved flat type loudspeaker vibrating system, which includes a flat vibrating plate and a speech coil which is installed under the vibrating plate, and a round via hole is formed on the installation position of the speech coil of the vibration plate, and the speech coil is installed and fixed on the side wall of the via hole. The speech coil with and integrated structure of the sound file on the top of the speech coil and the speech framework, such as an aluminum cylinder with top is used as the framework of the speech coil, and the sound film is directly form on the top surface. The loudspeaker vibrating system not only can be easily assembled, but also has identical firm combination of the sound film and the speech coil, thereby improving the high-end frequency response further and ensuring the consistency of the loudspeaker performance.
Description
Technical field
The present invention relates to a kind of improvement of vibrational system of flat plate type electrodynamic loudspeaker.
Background technology
Owing to the rise of panel TV, supporting with it demand dull and stereotyped or slim audio amplifier is obviously surging at present.Adopting the slim audio amplifier of traditional horn designs, at first is that thickness is big, generally more than 6cm, be difficult to cooperate with panel TV, and the 2nd, weight is big, hangs wall the comparison difficulty is set.For this reason; We propose the new design (number of patent application: 200610122444.8) that a kind of name is called " a kind of vibrational system of flat plate type electrodynamic loudspeaker "; Can design thus and a kind ofly can cover whole audio-frequency band thin flat loud speakers basically, and produce full range band thin flat audio amplifier with this.This invention is on traditional plate vibration plate, and a recess or through hole are dug in the position therebetween, and this recess just in time is used for installing voice coil loudspeaker voice coil.If dig through the hole,, cover thin film sound film then at the top in hole or the top of whole oscillating plate.
On thicker plate vibration plate, formed the directly part of the very thin film sound film of driving of a voice coil loudspeaker voice coil like this.Its technique effect has two:
The one, the sound membrane portions that approaches refers to the thin oscillating plate part at recess top or digs through the part at the top in the hole that forms behind the cover film under the situation in hole.Can the high frequency frequency response of whole loud speaker effectively be compensated, realize working in whole frequency range.And traditional panel speaker is difficult to realize full range.This be since the thickness of this part sound film much smaller than the thickness of whole oscillating plate, the quality of this part sound film just reduces greatly, is beneficial to high frequency and resets.
The 2nd, the space in recess or through hole can provide vibrational system enough amplitudes, and then reduces the thickness of whole loud speaker.As shown in Figure 1; Under the prerequisite that guarantees same amplitude and other condition constant (adopting same voice coil loudspeaker voice coil and drive system); Compare with traditional plate vibration plate, being employed in and forming the degree of depth on the oscillating plate is the design of the recess of D, can make the thickness of whole loud speaker reduce D.This is at current market in urgent need slimming loud speaker, and under the situation with the demand that satisfies dull and stereotyped colour TV etc., seeming is even more important.
The problem that adopts above-mentioned through hole conceptual design to exist is to form vibrational system by three elements: the plate vibration plate of band through hole, film sound film (two kinds of methods are arranged: via top local covering sound film or whole oscillating plate cover the sound film), voice coil loudspeaker voice coil.The combination back is as shown in Figure 3.Wherein voice coil loudspeaker voice coil and oscillating plate to combine can be that speech coil framework is combined in the sidewall of through hole or is combined in the bottom of through hole like Fig. 4, or both have both at the same time.
Need three elements be assembled together like this, especially the bonding state of voice coil loudspeaker voice coil and sound film can have a strong impact on high-end frequency response and consistency, and operability is difficult on the technology.
Summary of the invention
The objective of the invention is to propose a kind of vibrational system new construction of improved flat plate type electrodynamic loudspeaker, a kind ofly can cover whole audio-frequency bands basically so that design thus, and can improve high-end frequency response, guarantee the conforming thin flat loud speaker of speaker performance.
The vibrational system of improved flat plate type electrodynamic loudspeaker proposed by the invention; Comprise plate vibration plate and the voice coil loudspeaker voice coil that is installed in below this oscillating plate; Voice coil loudspeaker voice coil installation site on the described oscillating plate forms the through hole of a circle; Described voice coil loudspeaker voice coil is fixed on the sidewall of described through hole, it is characterized in that: it is incorporate sound film with speech coil framework that the top of voice coil loudspeaker voice coil has one.Formed sound film shape can be the various forms of the ball top sound film used always, comprises the sound film of flat-top, protruding sound film or the sound film of indent, the sound film at voice coil loudspeaker voice coil top is connect with the top kissing of oscillating plate or concordant be good.
The sound film at described voice coil loudspeaker voice coil top and speech coil framework are incorporate voice coil loudspeaker voice coils, and its speech coil framework can be one the tip circle tube to be arranged, and for example aluminium matter has the tip circle tube, and its end face directly forms the sound film, coil in the bottom, thus the sound film and the voice coil loudspeaker voice coil of being integrally formed.
The present invention also is applicable to the situation that multitone ring drives, and promptly described plate vibration plate can have one or several through holes, and the sound film and the speech coil framework that on a through hole, are mounted with the voice coil loudspeaker voice coil top at least are incorporate voice coil loudspeaker voice coils.
The present invention adopts incorporate sound film and voice coil loudspeaker voice coil; Oscillating plate with the band through hole combines again; And make the top of aluminum barrel connect or concordant with the top kissing of oscillating plate, so not only assembling is simple, and the sound film is firmly consistent with the combination of voice coil loudspeaker voice coil; Can further improve high-end frequency response, also guarantee the consistency of speaker performance.As adopt aluminium matter the tip circle tube to be arranged as voice coil loudspeaker voice coil, and the aluminium matter sound film at its top can improve the radiating effect of voice coil loudspeaker voice coil greatly, and the power that improves loud speaker bears.
The design is being applied to the situation that multitone ring drives, and assembly difficulty is reduced, and fraction defective and consistency all improve.
Description of drawings
Fig. 1 is the structural representation of general traditional speaker vibration system;
Fig. 2 is the structural representation that voice coil loudspeaker voice coil is contained in the speaker vibration system on the middle recess of plate vibration plate;
Fig. 3, Fig. 4 are the STRUCTURE DECOMPOSITION sketch mapes that two kinds of voice coil loudspeaker voice coils are contained in the speaker vibration system on the plate vibration plate intermediate throughholes;
Fig. 5 is the STRUCTURE DECOMPOSITION sketch map of improved vibrating system for flat-plate loudspeaker embodiment of the present invention.
Wherein, what Fig. 1,2,3,4 showed all is structures of existing speaker vibration system technical scheme, among the figure, and the 1st, plate vibration plate, the 2nd, voice coil loudspeaker voice coil, the 21st, speech coil framework, the 22nd, the coil on the speech coil framework, the 3rd, sound film, the 5th, the magnetic structure parts of loud speaker.
Specific embodiments
Be further described below in conjunction with the CONSTRUCTED SPECIFICATION of accompanying drawing the embodiment of the invention:
Present embodiment is improved single panel speaker vibrational system that drives; Its structure is as shown in Figure 5, and its oscillating plate 1 adopts the light-weight foam plate of φ 5cm * thick 0.5cm, and the improved voice coil loudspeaker voice coil 4 of a φ 2.8cm is housed above that; This voice coil loudspeaker voice coil 4 has the tip circle tube for aluminium matter; Its end face directly forms sound film (being aluminium matter sound film), coils in the bottom, thus the sound film and the voice coil loudspeaker voice coil of being integrally formed.Described voice coil loudspeaker voice coil 4 is fixed on the sidewall of the round tube hole in the middle of the oscillating plate 1, and the top kissing of the top of aluminum barrel and oscillating plate connects.
Claims (5)
1. the vibrational system of a panel speaker; Comprise plate vibration plate and the voice coil loudspeaker voice coil that is installed in below this oscillating plate; Voice coil loudspeaker voice coil installation site on the described oscillating plate forms the through hole of a circle; Described voice coil loudspeaker voice coil is fixed on the sidewall of described through hole, it is characterized in that: it is the sound film of integral structure with speech coil framework that the top of voice coil loudspeaker voice coil has one.
2. the vibrational system of panel speaker according to claim 1, the sound film that it is characterized in that described voice coil loudspeaker voice coil top connects with the top kissing of oscillating plate or is concordant.
3. the vibrational system of panel speaker according to claim 1 is characterized in that described speech coil framework is one the tip circle tube to be arranged, and its end face directly forms described sound film.
4. the vibrational system of panel speaker according to claim 3 is characterized in that described speech coil framework is that an aluminium matter has the tip circle tube.
5. according to the vibrational system of claim 1,2,3 or 4 described flat-plate loudspeakers; It is characterized in that described plate vibration plate has one or several through holes, the sound film and the speech coil framework that on a through hole, are mounted with the voice coil loudspeaker voice coil top at least are incorporate voice coil loudspeaker voice coils.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100298260A CN101374371B (en) | 2007-08-21 | 2007-08-21 | Improved vibrating system for flat-plate loudspeaker |
| PCT/CN2007/002827 WO2008043260A1 (en) | 2006-09-27 | 2007-09-27 | Vibrating system of panel form electrodynamic loudspeaker |
| US12/438,991 US8144916B2 (en) | 2006-09-27 | 2007-09-27 | Vibrating system of panel form electrodynamic loudspeaker |
| EP07816441.5A EP2071868B1 (en) | 2006-09-27 | 2007-09-27 | Vibrating system of panel form electrodynamic loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100298260A CN101374371B (en) | 2007-08-21 | 2007-08-21 | Improved vibrating system for flat-plate loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101374371A CN101374371A (en) | 2009-02-25 |
| CN101374371B true CN101374371B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100298260A Expired - Fee Related CN101374371B (en) | 2006-09-27 | 2007-08-21 | Improved vibrating system for flat-plate loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101374371B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931849A (en) * | 2010-09-30 | 2010-12-29 | 无锡杰夫电声有限公司 | Thin speaker with taper location support chip |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087177A1 (en) * | 1982-02-22 | 1983-08-31 | Koninklijke Philips Electronics N.V. | Electro-acoustic transducer having a diaphragm comprising a layer of polymethacrylimide foam |
| US4635750A (en) * | 1985-06-03 | 1987-01-13 | Sharp Kabushiki Kaisha | Loudspeaker diaphragm |
| CN1261511A (en) * | 1997-07-03 | 2000-07-26 | 新型转换器有限公司 | Panel-form loudspeakers |
| CN1264266A (en) * | 1999-02-13 | 2000-08-23 | 敬能企业有限公司 | Full-range loudspeaker |
| CN2490781Y (en) * | 2001-05-22 | 2002-05-08 | 林和鼎 | Miniature ultrathin broadband loudspeaker |
| CN1894998A (en) * | 2003-03-07 | 2007-01-10 | 皇家飞利浦电子股份有限公司 | Bending wave loudspeaker |
-
2007
- 2007-08-21 CN CN2007100298260A patent/CN101374371B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0087177A1 (en) * | 1982-02-22 | 1983-08-31 | Koninklijke Philips Electronics N.V. | Electro-acoustic transducer having a diaphragm comprising a layer of polymethacrylimide foam |
| US4635750A (en) * | 1985-06-03 | 1987-01-13 | Sharp Kabushiki Kaisha | Loudspeaker diaphragm |
| CN1261511A (en) * | 1997-07-03 | 2000-07-26 | 新型转换器有限公司 | Panel-form loudspeakers |
| CN1264266A (en) * | 1999-02-13 | 2000-08-23 | 敬能企业有限公司 | Full-range loudspeaker |
| CN2490781Y (en) * | 2001-05-22 | 2002-05-08 | 林和鼎 | Miniature ultrathin broadband loudspeaker |
| CN1894998A (en) * | 2003-03-07 | 2007-01-10 | 皇家飞利浦电子股份有限公司 | Bending wave loudspeaker |
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| Publication number | Publication date |
|---|---|
| CN101374371A (en) | 2009-02-25 |
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Granted publication date: 20120704 Termination date: 20190821 |