CN101374371A - Improved vibrating system for flat-plate loudspeaker - Google Patents
Improved vibrating system for flat-plate loudspeaker Download PDFInfo
- Publication number
- CN101374371A CN101374371A CNA2007100298260A CN200710029826A CN101374371A CN 101374371 A CN101374371 A CN 101374371A CN A2007100298260 A CNA2007100298260 A CN A2007100298260A CN 200710029826 A CN200710029826 A CN 200710029826A CN 101374371 A CN101374371 A CN 101374371A
- Authority
- CN
- China
- Prior art keywords
- voice coil
- plate
- sound film
- loudspeaker voice
- speech
- 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.)
- Granted
Links
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
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 substantially, 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, adopting and form the degree of depth on 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.After the combination as shown in Figure 3.Wherein voice coil loudspeaker voice coil and combining of oscillating plate can be that speech coil framework is combined in the sidewall of through hole or is combined in the bottom of through hole as Fig. 4, or both have both at the same time.
Three elements need 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 substantially 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 the plate vibration plate and be installed in voice coil loudspeaker voice coil 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, the sound film of projection 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, coils in the bottom, thereby forms incorporate sound film and voice coil loudspeaker voice coil.
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 are mounted with the voice coil loudspeaker voice coil top at least on a through hole 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 schematic diagrames 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 schematic diagram 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 as shown in Figure 5, its oscillating plate 1 adopts the light-weight foam plate of φ 5cm * thick 0.5cm, the improved voice coil loudspeaker voice coil 4 of one φ 2.8cm is housed thereon, 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, thereby forms incorporate sound film and voice coil loudspeaker voice coil.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 the plate vibration plate and be installed in voice coil loudspeaker voice coil 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 the 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 type electrodynamic 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 are mounted with the voice coil loudspeaker voice coil top at least on a through hole 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 |
| EP07816441.5A EP2071868B1 (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 |
| PCT/CN2007/002827 WO2008043260A1 (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 true CN101374371A (en) | 2009-02-25 |
| CN101374371B CN101374371B (en) | 2012-07-04 |
Family
ID=40448221
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) |
Cited By (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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8200690A (en) * | 1982-02-22 | 1983-09-16 | Philips Nv | SPEAKER MEMBRANE CONTAINING A LAYER OF POLYMETHACRYLIMIDE FOAM. |
| US4635750A (en) * | 1985-06-03 | 1987-01-13 | Sharp Kabushiki Kaisha | Loudspeaker diaphragm |
| GB9714050D0 (en) * | 1997-07-03 | 1997-09-10 | New Transducers Ltd | 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 |
| EP1604542A1 (en) * | 2003-03-07 | 2005-12-14 | Koninklijke Philips Electronics N.V. | Bending wave loudspeaker |
-
2007
- 2007-08-21 CN CN2007100298260A patent/CN101374371B/en not_active Expired - Fee Related
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101374371B (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100888965B1 (en) | Speaker | |
| CN203301726U (en) | Bass loudspeaker and electronic apparatus employing same | |
| CN201854416U (en) | Loudspeaker | |
| KR100902895B1 (en) | Speaker | |
| CN103260117A (en) | Woofer and electronic device applying same | |
| US20210006880A1 (en) | Screen sound generation device | |
| KR20080001090A (en) | Speaker | |
| US8804995B2 (en) | Low profile loudspeaker | |
| CN214177551U (en) | Sound production device | |
| CN101374371B (en) | Improved vibrating system for flat-plate loudspeaker | |
| CN112752208A (en) | Loudspeaker and sound system | |
| CN202602881U (en) | Low-distortion loudspeaker | |
| CN201467426U (en) | Composite vibrating membrane for miniature receiver or loudspeaker | |
| CN101931849A (en) | Thin speaker with taper location support chip | |
| CN101175338B (en) | Vibration system of flat plate type electrodynamic loudspeaker | |
| US20230148010A1 (en) | Speaker and electronic device | |
| CN211128161U (en) | Novel high-power coaxial woofer speaker | |
| CN210351592U (en) | Voice coil diaphragm for reducing noise | |
| CN210225736U (en) | Multi-driving-point sound exciter | |
| CN101931847B (en) | Thin type speaker based on multi-step magnetic yoke | |
| CN201839431U (en) | Thin type speaker with tapered positioning support chip | |
| EP2071868A1 (en) | Vibrating system of panel form electrodynamic loudspeaker | |
| US20240056738A1 (en) | Speaker | |
| CN201657307U (en) | Piezoelectric speaker | |
| RU135871U1 (en) | ELECTRODYNAMIC SPEAKER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20190821 |