CN101494812A - Horn capable of eliminating vibration wave of vibration film - Google Patents
Horn capable of eliminating vibration wave of vibration film Download PDFInfo
- Publication number
- CN101494812A CN101494812A CNA2008100005743A CN200810000574A CN101494812A CN 101494812 A CN101494812 A CN 101494812A CN A2008100005743 A CNA2008100005743 A CN A2008100005743A CN 200810000574 A CN200810000574 A CN 200810000574A CN 101494812 A CN101494812 A CN 101494812A
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- web
- diaphragm member
- loudspeaker
- diaphragm
- vibration
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Abstract
The invention is about a speaker capable of reducing diaphragm vibration wave, which comprises: a frame; a diaphragm member disposed in the frame capable of vibrating on the frame; predetermined number of bars disposed on the diaphragm surface of the diaphragm member in at least one circle, each of which is slanted with its longitudinal direction not perpendicular to the radial direction of the diaphragm member, while each bar is arranged in length no more than 3/5 of the diaphragm surface radius. Therefore, when the diaphragm member vibrates, the bars can reduce the vibration wave on the diaphragm surface rapidly to reduce residue vibration wave, eliminate noise, and improve the sound quality of speaker.
Description
Technical field
The present invention knows clearly it about a kind of loudspeaker arrangement, means a kind of loudspeaker of subduing vibration wave of vibration film.
Background technology
Press, loudspeaker are a kind of devices that convert electrical energy into sound.The structure of loudspeaker has: a framework, a magnet assembly, a vibrating membrane and an outstanding limit etc.The periphery of this vibrating membrane is connected in this framework with this outstanding limit, and outstanding limit is a pliability material, and vibrating membrane must be vibrated on framework.The magnetic force that produces by magnet assembly promotes the vibrating membrane vibration and produces sound.
When vibrating membrane vibrates, the generation ripple that shakes is outwards advanced and is communicated to outstanding limit along vibrating membrane.Most loudspeaker are gone up the very difficult impedance that will hang limit and vibrating membrane in design and are done suitable collocation, and therefore, the ripple that shakes arrives passing through vibrating membrane when hanging the limit, and the energy of the ripple that shakes still can't be eliminated fast, causes the generation of remained shock ripple, and vibrating membrane is passed on outstanding certainly limit again back.The remained shock ripple will become the noise of the follow-up ripple that shakes and influence sound quality.
Summary of the invention
Purport of the present invention is taken off disappearance on solving, its main purpose is to provide a kind of loudspeaker, and the ripple that shakes of vibrating membrane is subdued fast, to eliminate noise.
For reaching above-mentioned purpose, loudspeaker provided by the present invention have a framework; One diaphragm member is installed in this framework, can vibrate with respect to this framework; The invention is characterized in: other includes: some webs, be located at the vibrating diaphragm surface of this diaphragm member with the arrangement mode of at least one circle, respectively the angles of vertically spending with radially having of this diaphragm member non-90 of this web; And each web be provided with length be not more than the vibrating diaphragm surface radius 3/5ths.By this, described web can change the direct of travel of the ripple that shakes, and then the ripple that shakes is subdued fast, and the remained shock that reduces the ripple that shakes produces, and improves the tonequality of loudspeaker.
The surface of this diaphragm member can be single plane or curved surface, or is two and is connected but discontinuous plane of slope or curved surface.
Preferably, web and diaphragm member are unlike material, especially make the rigidity of web be higher than the rigidity of diaphragm member, change direction when making the ripple that shakes through different medium or form the ripple that looses.
Each web is oblique setting, web vertically with diaphragm member radially be 20 degree to 70 angles of spending.
The web of being located at diaphragm member can be odd number; Also or be the quantity of even number but unequal interval, to avoid the producing ripple resonance of shaking in addition.
Be the effect that makes the auditor further understand purpose of the present invention, feature and to be reached, below lift the some preferred embodiments of the present invention now, and after cooperating graphic being described in more detail in.
Description of drawings
Fig. 1 is the stereogram of a preferred embodiment of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the top view of the diaphragm member of a preferred embodiment of the present invention.
Fig. 4 is the profile of the 4-4 hatching line of Fig. 3.
Fig. 5 and Fig. 6 are the top views of the diaphragm member of Fig. 1.
Fig. 7 is the partial enlarged drawing of Fig. 3.
Fig. 8 is the stereogram of another preferred embodiment of the present invention.
Fig. 9 is the top view of the diaphragm member of Fig. 8.
Figure 10 is the top view of the diaphragm member of the another preferred embodiment of the present invention.
Figure 11 is the present invention's top view of the diaphragm member of a preferred embodiment again.
Embodiment
See also Fig. 1, Fig. 2, the loudspeaker 10 that a preferred embodiment of the present invention provided have a framework 20, a magnet assembly (not shown), a diaphragm member 30 and an outstanding limit 40.This magnetic component is installed in the framework 20, comprises a magnet and a coil, uses the magnetic force that generation is inhaled mutually or repelled each other.This diaphragm member 30 is installed in the opening of this framework 20; Should hang limit 40 ringwise, its outer peripheral edges are connected in framework 20, and inner peripheral then connects diaphragm member 30.Outstanding limit 40 is a flexible materials, and diaphragm member can be vibrated on framework.When the magnetic force of magnetic component promoted the diaphragm member vibration, compressed air produced sound wave.
See also Fig. 3, Fig. 4, diaphragm member 30 is a thin type object, can metal, macromolecular material, paper or fiber materials such as (carbon fiber or glass fibres) make.The diaphragm member 30 that present embodiment is taken off has a vibrating membrane 32 and a dust cap 35 (dust cap), and dust cap 35 is installed on vibrating membrane 32 central authorities, and vibrating membrane and dust cap form the form of inside and outside circle.Vibrating membrane is successional curved surface (slope is a continuous) structure, and dust cap is another successional curved-surface structure, therefore, this diaphragm member 30 has two and is connected but the discontinuous vibrating diaphragm of slope surface, is respectively the curved surface (F) (hereinafter claim vibrating diaphragm surface, outer ring or be called for short the surface, outer ring) of vibrating membrane and the curved surface F ' (hereinafter claim inner ring vibrating diaphragm surface or be called for short inner peripheral surface) of dust cap.Again, the junction of the periphery of dust cap 35 and vibrating membrane 32 is circle actuating place 36, and this actuating place is usually corresponding to the coil of magnetic component.
The present invention more includes some webs 50, is located in the mode of suitable distribution on the surface of this diaphragm member 30.The surface of the diaphragm member of indication of the present invention can be the front or the back side of diaphragm member.Present embodiment is installed in the curved surface F of vibrating membrane and the curved surface F ' of dust cap simultaneously with web 50, only a curved surface also optionally only located therein.The web 50 of present embodiment is two cast formula settings, and the web 50 that arrange the outer ring is located at surface, outer ring F, and the web 50 ' that inner ring is arranged then is located at inner ring curved surface F '.Inside and outside circle web is boundary with this actuating place 36.
Being located at shake web and diaphragm member is good with unlike material, and makes the rigidity of web be better than the rigidity of diaphragm member.
See also Fig. 3, each web 50 is oblique setting, and it is vertically spent between the angles to 70 between 20 degree with the angle theta of the radially R of diaphragm member 30.
See also Fig. 5, on the effective radius L1 of outer ring surface F (by actuating place 36 to the vibrating membrane periphery), the length S1 that is provided with of each outer ring web 50 is no more than 3/5ths of this effective radius L1, and the described length that is provided with refers to: the length that the web projection directly makes progress in diaphragm member.And on the effective radius L2 of inner peripheral surface F ' (by dust cap center 37 to this actuating place 36), the length S2 that is provided with of each inner ring web 50 ' is no more than 3/5ths of this effective radius L2.Generally speaking, on the radius L of diaphragm member 30, the single web 50,50 ' the totalling that are positioned at inside and outside circle are provided with length and are no more than 3/5ths of this radius L.For example, the totalling of the inner ring web of the outer ring web of label a and label b is provided with length and is no more than 3/5ths of radius L.
In addition, see also Fig. 6, the inner of the web 50 of outer ring just is positioned on the same function curve C.This function curve C system decides on the shape of diaphragm member, and when being circle, conical configuration as if diaphragm member 30, C is rounded for this function curve.If diaphragm member be ellipse or microscler etc., then this function curve ovalize.Same, the outer end of inner ring web also can be positioned on the same function curve.In the enforcement,, the same at least end of same circle web is positioned on the same function curve, for example has only the inner of web to be positioned on the function curve for showing different characteristics; Or the outer end of having only web is positioned on the function curve; Or the inner of web is positioned on the function curve, and simultaneously, the outer end of web is positioned on another function curve.
See also Fig. 7, when the loudspeaker start, diaphragm member 30 produces vibration, and at this moment, diaphragm member is the generation ripple that shakes, and is divided into shake ripple W and W ' by this actuating place 36 and advances in outer ring surface F and inner peripheral surface F '.The ripple W that shakes advances ， Yu Touch when contacting outer ring web 50 outward on the F of outer ring surface, the simple originally and ripple that shakes that concentrate will reflect or be broken up and change direct of travel, form diffusing ripple (containing reflected wave) D.In addition, web and diaphragm member are unlike material, the effect that direction changed when the ripple that shakes also was provided through different medium.
When the ripple W that shakes is transformed into when loosing ripple D, its direction changes, thereby at the travel distance lengthening of surface, outer ring F, utilizes the damping characteristic on diaphragm member 30 and outstanding limit 40 to consume the energy of remained shock ripple again, reaches the purpose of subduing the wave energy that shakes fast.
More detailed it because the ripple (containing diffusing ripple) that shakes is at the travel distance on surface, outer ring lengthening, the impedance that is subjected to diaphragm member increases, the energy attenuation of the ripple that quickens to shake.Again, the ripple that shakes marches to when hanging the limit, subdues the energy of the ripple that shakes again by the damping on outstanding limit.If its energy do not finish forfeiture as yet, the remained shock ripple that diaphragm member is passed on outstanding certainly limit again back can be subjected to the absorption of web once more and breaks up when arriving web, reaches the purpose of subduing the wave energy that shakes fast.By this, remained shock ripple chance of occurrence significantly reduces, and reduces noise and produces.
In addition, described diffusing ripple D also can interfere mutually with the original phase of wave that shakes, and also makes the energy of the ripple that shakes be able to faster decay.
And the ripple W ' that shakes also will touch inner ring web 50 ' when inwardly advancing on inner peripheral surface F ', and the simple originally and ripple that shakes that concentrate will reflect or be broken up and change direct of travel, form diffusing ripple (containing reflected wave) D '.Be transformed into when loosing ripple D ' in the ripple W ' that shakes, its direction changes, thereby at the travel distance lengthening of inner peripheral surface F ', utilizes the damping characteristic on diaphragm member 30 and outstanding limit 40 to consume the energy of remained shock ripple again, reaches the purpose of subduing the wave energy that shakes fast.
The quantity of outer ring web 50 and inner ring web 50 ' is good with odd number, the ripple that can prevent to shake resonance.Only, it is provided with quantity and also can be even number, and makes between the outer ring web 50, and is different spacing between the inner ring web 50 ', the ripple that also can prevent to shake resonance.
Again, each outer ring web 50 2 end is not connected (inner rim on surface, outer ring is the most inboard of surface, outer ring) with the inside and outside periphery of surface, outer ring F, still possesses spacing; So, make vibrating membrane still have suitable flexibility, can be too not hard, can avoid the frequency range of vibrating membrane to reduce, and prevent that the high frequency of vibrating membrane from decaying fast.In like manner, each inner ring web 50 ' two end also is not connected (center of inner peripheral surface is the most inboard of inner peripheral surface) with center 37 and the periphery of inner peripheral surface F ', so can the frequency range and the high frequency response of dust cap 35 do not impacted.
Annex one and annex two are inventor's test result.Annex one shows the test data of the loudspeaker of not installing web; Annex two is the test data of the loudspeaker of installing web of the present invention.Use loudspeaker of the present invention, the remained shock of its ripple that shakes is subdued fast, so noise reduces, especially the auditory frequency range at people's ear is the most obvious, and sound quality is improved.
Seeing also Fig. 8, Fig. 9 again, is another preferred embodiment of loudspeaker 60 provided by the present invention, includes equally: a framework 62, a diaphragm member 64, one outstanding limit 66 and some webs 68.Wherein, the vibrating diaphragm of the diaphragm member 64 of present embodiment surface F " be single continuous face, this diaphragm member can be planar structure or curved-surface structure, if during curved-surface structure, then can be the form of central evagination or central indent.
The angle theta of the radially R of the vertical and diaphragm member 64 of each web 68 is spent to 70 degree angles between 20.And, each web be provided with length S3 be not more than diaphragm member 64 radius L ' 3/5ths.
Actuating place of this diaphragm member can be the periphery 641 of diaphragm member, also can be the central authorities of diaphragm member.When actuating place is positioned at the diaphragm member periphery, shake ripple in vibrating diaphragm surface F ' go up by outside advance toward in, and with Touch touch article material 68; When actuating place was positioned at its central authorities, the ripple that shakes was advanced outward by the central authorities on vibrating diaphragm surface, and with Touch touch article material.The effect of subduing the ripple that shakes of present embodiment can be understood by the explanation of a last embodiment, holds and does not give unnecessary details.
See also Figure 10, be the diaphragm member 70 of another preferred embodiment of the present invention and the top view of web 72, web 72 can be not wide configuration, do not exceed with wide, and its two end 74 can be circular arc, pointed or suitable shape.
Figure 11 shows the diaphragm member 80 of the another preferred embodiment of the present invention and the top view of web 82.Web 82 can be the arc web.
Loudspeaker provided by the present invention, to change the ripple direct of travel that shakes of diaphragm member, can subdue effectively fast shakes involves the remained shock ripple, uses the reduction noise by the setting of web, improves sound quality.
On to take off all embodiment only be in order to explanation the present invention and unrestricted.
Claims (9)
1. loudspeaker of subduing vibration wave of vibration film include:
One framework;
One diaphragm member is installed in the framework, can vibrate on this framework; This diaphragm member has the continuous vibrating diaphragm surface of at least one slope;
The web of predetermined number is located at this diaphragm member surface with the arrangement mode of at least one circle, and its rigidity is better than the rigidity of this diaphragm member; Respectively this web is oblique setting, its angles that radially have non-90 degree vertical and this diaphragm member; In diaphragm member in the radial direction, respectively this web be provided with length be not more than this vibrating diaphragm surface radius 3/5ths.
2. the loudspeaker of subduing vibration wave of vibration film as claimed in claim 1 is characterized in that: this diaphragm member has two and is connected but the discontinuous vibrating diaphragm of slope surface, and the mode that this two vibrating diaphragms surface is inside and outside circle is provided with; Described web is to be located at this vibrating diaphragm surface, outer ring; Respectively this web be provided with length be not more than this vibrating diaphragm surface, outer ring effective radius 3/5ths.
3. the loudspeaker of subduing vibration wave of vibration film as claimed in claim 2 is characterized in that: this inner ring vibrating diaphragm surface also is provided with the web of predetermined number, respectively this web be provided with length be not more than this inner ring vibrating diaphragm surface radius 3/5ths.
4. the loudspeaker of subduing vibration wave of vibration film as claimed in claim 1 is characterized in that: this diaphragm member has two and is connected but the discontinuous vibrating diaphragm of slope surface, and the mode that this two vibrating diaphragms surface is inside and outside circle is provided with; Described web is located at this inner ring vibrating diaphragm surface.
5. the loudspeaker of subduing vibration wave of vibration film as claimed in claim 1 is characterized in that: respectively these web two ends are not connected with the most inboard and neighboring on this vibrating diaphragm surface respectively.
6. the loudspeaker of subduing vibration wave of vibration film as claimed in claim 1 is characterized in that: the same at least end of the web that same circle is arranged is positioned on the function curve.
7. the loudspeaker of subduing vibration wave of vibration film as claimed in claim 1 is characterized in that: respectively angle circle radially of vertical and this diaphragm member of this web is between 20 degree are spent to 70.
8. the loudspeaker of subduing vibration wave of vibration film as claimed in claim 1 is characterized in that: respectively the quantity of the web that same circle is arranged on this vibrating diaphragm surface is odd number.
9. the loudspeaker of subduing vibration wave of vibration film as claimed in claim 1 is characterized in that: respectively the quantity of the web that same circle is arranged on this vibrating diaphragm surface is even number, and has unequal interval between described web.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100005743A CN101494812B (en) | 2008-01-23 | 2008-01-23 | Horn capable of eliminating vibration wave of vibration film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100005743A CN101494812B (en) | 2008-01-23 | 2008-01-23 | Horn capable of eliminating vibration wave of vibration film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101494812A true CN101494812A (en) | 2009-07-29 |
| CN101494812B CN101494812B (en) | 2012-07-18 |
Family
ID=40925160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100005743A Expired - Fee Related CN101494812B (en) | 2008-01-23 | 2008-01-23 | Horn capable of eliminating vibration wave of vibration film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101494812B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170603A (en) * | 2011-05-20 | 2011-08-31 | 深圳麦博电器有限公司 | Mechanical frequency division diaphragm and manufacturing method thereof |
| CN103297903A (en) * | 2013-05-08 | 2013-09-11 | 歌尔声学股份有限公司 | Flat-plate-type woofer speaker and electronic device with same |
| CN106303850A (en) * | 2015-05-29 | 2017-01-04 | 宋行智 | Reduce the speaker of vibration wave of vibration film |
| CN106507255A (en) * | 2016-12-05 | 2017-03-15 | 歌尔丹拿音响有限公司 | The speaker diaphragm and loudspeaker of cone basin formula |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364651Y (en) * | 1998-09-25 | 2000-02-16 | 黄新民 | Diaphragm for loudspeaker |
| JP4561960B2 (en) * | 2004-01-23 | 2010-10-13 | フォスター電機株式会社 | Speaker diaphragm |
| JP2005303775A (en) * | 2004-04-14 | 2005-10-27 | Pioneer Electronic Corp | Diaphragm for acoustic transducer |
| JP2006287418A (en) * | 2005-03-31 | 2006-10-19 | Pioneer Electronic Corp | Speaker apparatus |
| JP2007281986A (en) * | 2006-04-10 | 2007-10-25 | Minebea Co Ltd | Speaker and speaker diaphragm |
-
2008
- 2008-01-23 CN CN2008100005743A patent/CN101494812B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170603A (en) * | 2011-05-20 | 2011-08-31 | 深圳麦博电器有限公司 | Mechanical frequency division diaphragm and manufacturing method thereof |
| CN102170603B (en) * | 2011-05-20 | 2014-01-22 | 深圳麦博电器有限公司 | Mechanical frequency division diaphragm and manufacturing method thereof |
| CN103297903A (en) * | 2013-05-08 | 2013-09-11 | 歌尔声学股份有限公司 | Flat-plate-type woofer speaker and electronic device with same |
| CN106303850A (en) * | 2015-05-29 | 2017-01-04 | 宋行智 | Reduce the speaker of vibration wave of vibration film |
| CN106507255A (en) * | 2016-12-05 | 2017-03-15 | 歌尔丹拿音响有限公司 | The speaker diaphragm and loudspeaker of cone basin formula |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101494812B (en) | 2012-07-18 |
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Granted publication date: 20120718 Termination date: 20200123 |
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