CN106060730A - Method for lowering ultra-thin loudspeaker distortion - Google Patents
Method for lowering ultra-thin loudspeaker distortion Download PDFInfo
- Publication number
- CN106060730A CN106060730A CN201610496693.7A CN201610496693A CN106060730A CN 106060730 A CN106060730 A CN 106060730A CN 201610496693 A CN201610496693 A CN 201610496693A CN 106060730 A CN106060730 A CN 106060730A
- Authority
- CN
- China
- Prior art keywords
- ring
- distortion
- described ring
- height
- loudspeaker
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The present invention discloses a method for lowering ultra-thin loudspeaker distortion, relating to the technical field of electro-acoustic products. A folding ring of the loudspeaker is a reverse folding ring. Klippel test is performed on the loudspeaker so as to obtain a Kms(x) curve and a Kms symmetry range curve to obtain a non-linear condition of a vibration system; and a relative height of an outer side surface and an inner side surface of the folding ring is adjusted according to a test result, so as to adjust a balance position of Kms (x) under a condition of symmetry of coil in and coil out and motion. Through adoption of the method for lowering ultra-thin loudspeaker distortion, the technical problem in the prior art that the loudspeaker cannot meet design requirements of both height and acoustic performance is solved, and non-linear distortion of the reverse folding ring loudspeaker is effectively lowered, so that the loudspeaker meets the design requirements of both height and acoustic performance.
Description
Technical field
The present invention relates to electro-acoustic product technical field, be used for reducing super-thin speaker non-linear distortion particularly to one
Method.
Background technology
Speaker is commonly called as loudspeaker, the conversion being used between the signal of telecommunication and acoustical signal, is a kind of energy conversion device.
Speaker generally includes shell, contains vibrational system and magnetic circuit system in shell, and magnetic circuit system includes U/T ferrum, Magnet and China
Department, vibrational system includes basin with compound, voice coil loudspeaker voice coil and the top dome combined, and the end of voice coil loudspeaker voice coil is positioned at magnetic gap, basin with compound bag
Include and be positioned at the oscillating plate that middle part combines with voice coil loudspeaker voice coil and top dome and the ring being combined in oscillating plate periphery.Ring is under normal circumstances
The protrusion direction of forward ring, i.e. ring upwards, but along with speaker constantly develops to slimming, is provided with raising of forward ring
Sound device cannot meet design requirement the most.Therefore designer is considered as reverse ring to reduce the height of speaker
The protrusion direction of degree, i.e. ring is downward, but reversely ring is limited by its structure, easily causes the poorest of vibrational system,
Distortion is big, although makes speaker in height meet design requirement, but but cannot meet design in acoustical behavior and want
Ask.
Summary of the invention
For disadvantages described above, the technical problem to be solved is to provide and a kind of reduces super-thin speaker distortion
Method, this method reducing super-thin speaker distortion the most effectively improves while meeting speaker height design requirement
The non-linear distortion of speaker, improves the acoustical behavior of speaker so that speaker can meet height and acoustics simultaneously
The design requirement of energy.
For solving above-mentioned technical problem, the technical scheme is that
A kind of method reducing super-thin speaker distortion, the ring of described speaker is reverse ring, raises one's voice to described
Device carries out Klippel test, draws Kms (x) curve and Kms symmetry range curve, draws the non-linear of vibrational system
Situation；Lateral surface and the relative altitude of medial surface of described ring is regulated, to regulate Kms (x) at coil according to test result
And the equilbrium position when symmetry of coil out and motion.
Wherein, according to described test result, the medial surface of described ring is adjusted to the lateral surface less than described ring.
Wherein, according to described test result, the medial surface of described ring is adjusted to the lateral surface higher than described ring.
Wherein, the difference in height between medial surface and the lateral surface of described ring of described ring is less than described ring material
Thickness.
Wherein, the difference in height between medial surface and the lateral surface of described ring of described ring is more than or equal to described ring material
The thickness of material, and less than the 1/2 of described ring height.
After have employed technique scheme, the invention has the beneficial effects as follows:
Reversely folding is have adjusted according to the result that Klippel tests owing to the present invention reduces the method for super-thin speaker distortion
Relative altitude between medial surface and the lateral surface of ring, thus change voice coil loudspeaker voice coil position in magnetic circuit system, it is possible to regulation Kms
X () (the mechanics stiffness of vibrational system is pliable inverse) is in the symmetry of coil in (in voice coil loudspeaker voice coil) and coil out (voice coil loudspeaker voice coil is outer)
Property and equilbrium position during motion, and then improve the non-linear of vibrational system, effectively reduce non-linear distortion, improve
The acoustical behavior of anti-corrugated rim loudspeaker so that speaker can meet height and the design requirement of acoustical behavior simultaneously.
In sum, the present invention reduce the method for super-thin speaker distortion solve in prior art speaker cannot be with
Time meet height and acoustical behavior design require technical problem, the method that the present invention reduces super-thin speaker distortion is effective
The non-linear distortion reducing anti-corrugated rim loudspeaker so that speaker can meet simultaneously height and acoustics design want
Ask.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of super-thin speaker；
Fig. 2 is a kind of structural representation that the present invention reduces the basin with compound of the method employing of super-thin speaker distortion；
Fig. 3 is the another kind of structural representation that the present invention reduces the basin with compound of the method employing of super-thin speaker distortion；
Fig. 4 is the yet another construction schematic diagram that the present invention reduces the basin with compound of the method employing of super-thin speaker distortion；
In figure: 10, basin with compound, 10a, basin with compound, 10b, basin with compound, 10c, basin with compound, 12, ring, 12a, ring, 12b,
Ring, 12c, ring, 14, oscillating plate, 20, frame, 30, voice coil loudspeaker voice coil, 40, top dome, 50, magnetic circuit system, 52, magnetic gap, A, A ',
A ", the lateral surface of ring, B, B ', B ", the medial surface of ring.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the present invention is expanded on further.
The inner side related in this specification refers to the side near Microspeaker center, and outside refers to miniature raising
The side at Sheng Qi center；Refer to be provided with the direction of vibrational system in the orientation related in this specification, refer under orientation be provided with magnetic circuit
The direction of system.
As it is shown in figure 1, a kind of super-thin speaker, including frame 20, the upper end of frame 20 is fixed with vibrational system, frame
The lower end of 20 is fixed with magnetic circuit system 50.Vibrational system includes that edge part is fixed on the basin with compound 10 of frame 20 upper surface, compound
The middle part of basin 10 is combined with top dome 40 and voice coil loudspeaker voice coil 30, and the end of voice coil loudspeaker voice coil 30 is positioned at magnetic gap 52.During basin with compound 10 includes being positioned at
The oscillating plate 14 that portion is combined with top dome 40 and voice coil loudspeaker voice coil 30, and it is fastened around the ring 12 of oscillating plate 14 periphery, the limit of ring 12
Edge is fixed in frame 20.In order to reduce the height of speaker, the ring 12 of this speaker is reverse ring, i.e. protrusion direction
Downwards, this kind of structure result also in the poor linearity of vibrational system, non-linear mistake while effectively reducing speaker height
Very serious, the invention provides a kind of method that can effectively drop opisthotonos ring Nonlinear Distortion of Loudspeakers for this kind of situation:
A kind of method reducing super-thin speaker distortion, the method comprises the steps:
First anti-corrugated rim loudspeaker is carried out Klippel (sound analysis system) test, obtains Kms (x) curve and Kms
Symmetry range (Kms symmetrical range) curve, draws the nonlinear situation of vibrational system according to these two curves；
Then according to lateral surface and the relative altitude of medial surface of this test result regulation ring, Kms (x) can be regulated and exist
Equilbrium position when coil in and the symmetry of coil out and motion, thus improve the non-linear of vibrational system, reduce and adopt
By the non-linear distortion of the super-thin speaker of opisthotonos ring, improve the acoustical behavior of this kind of speaker.
Citing below provides two kinds of lateral surface according to test result regulation ring and the embodiment party of medial surface relative altitude
Formula:
The first, according to test result, the medial surface of ring is adjusted to the lateral surface less than ring,
As in figure 2 it is shown, basin with compound 10a, it is little that the medial surface B of its ring 12a is slightly below lateral surface A, the i.e. difference in height of the two
Thickness in ring material；
As shown in Figure 4, the medial surface B " less than lateral surface A " of basin with compound 10c, its ring 12c, the difference in height of the two relatively Fig. 2
Shown embodiment is wanted big, be preferably greater than the thickness equal to ring material, but less than the 1/2 of ring height.
The second, according to test result, the medial surface of ring is adjusted to the lateral surface higher than ring,
As it is shown on figure 3, basin with compound 10b, the medial surface B ' of its ring 12b is higher than lateral surface A ', and the difference in height of the two is preferred
For the thickness more than or equal to ring material, but less than the 1/2 of ring height；In present embodiment, the difference in height of the two can also be little
In the thickness of ring material, i.e. medial surface B ' is slightly above lateral surface A '.
The present invention reduces the method for super-thin speaker distortion by regulating the medial surface of opisthotonos ring and the relative of lateral surface
Highly effective improve the non-linear of vibrational system, reduce non-linear distortion, improve the acoustical behavior of speaker.
Above-described embodiment is only effective by the medial surface of regulation opisthotonos ring and the relative altitude of lateral surface to the present invention
Improve the illustration of the nonlinear technical scheme of vibrational system, be not exhaustive, as long as inside by regulation ring
The relative altitude of face and lateral surface each falls within protection scope of the present invention with the method reducing Nonlinear Distortion of Loudspeakers.Simultaneously
The structure of speaker is not limited in said structure, and technical scheme is applicable to any anti-corrugated rim loudspeaker
In, those skilled in the art need not pay any creative work according to the description of above-described embodiment just can be by the skill of the present invention
Art scheme is applied in the speaker of other structure, therefore no matter other structure of speaker is the most same as the previously described embodiments, only
If it is by regulation opisthotonos ring medial surface and the relative altitude of lateral surface, equal in order to reduce the method for the non-linear distortion of speaker
Fall within the scope of protection of the present invention.
The present invention is not limited to above-mentioned specific embodiment, those of ordinary skill in the art from above-mentioned design,
Without performing creative labour, all conversion made, within all falling within protection scope of the present invention.
Claims (5)
1. the method reducing super-thin speaker distortion, the ring of described speaker is reverse ring, it is characterised in that to described
Speaker carries out Klippel test, draws Kms (x) curve and Kms symmetry range curve, draws the non-of vibrational system
Linear case；Regulate the lateral surface of described ring and the relative altitude of medial surface according to test result, exist regulating Kms (x)
Equilbrium position when coil in and the symmetry of coil out and motion.
The method of reduction super-thin speaker distortion the most according to claim 1, it is characterised in that according to described test knot
The medial surface of described ring is adjusted to the lateral surface less than described ring by fruit.
The method of reduction super-thin speaker distortion the most according to claim 1, it is characterised in that according to described test knot
The medial surface of described ring is adjusted to the lateral surface higher than described ring by fruit.
4. according to the method reducing super-thin speaker distortion described in Claims 2 or 3, it is characterised in that described ring
Difference in height between the lateral surface of medial surface and described ring is less than the thickness of described ring material.
5. according to the method reducing super-thin speaker distortion described in Claims 2 or 3, it is characterised in that described ring
Difference in height between the lateral surface of medial surface and described ring is more than or equal to the thickness of described ring material, and is less than described ring
The 1/2 of height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610496693.7A CN106060730B (en) | 2016-06-29 | 2016-06-29 | The method for reducing super-thin speaker distortion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610496693.7A CN106060730B (en) | 2016-06-29 | 2016-06-29 | The method for reducing super-thin speaker distortion |
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| Publication Number | Publication Date |
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| CN106060730A true CN106060730A (en) | 2016-10-26 |
| CN106060730B CN106060730B (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610496693.7A Active CN106060730B (en) | 2016-06-29 | 2016-06-29 | The method for reducing super-thin speaker distortion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108024182A (en) * | 2017-11-23 | 2018-05-11 | 瑞声科技(新加坡)有限公司 | Minitype acoustic generator and its assembly method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080137902A1 (en) * | 2006-12-07 | 2008-06-12 | Bohlender Jack T | Highly elongated loudspeaker and motor |
| CN102970647A (en) * | 2012-11-16 | 2013-03-13 | 嘉善恩益迪电声技术服务有限公司 | Simulating calculation method for nonlinear characteristics in loudspeaker vibration |
| CN204014053U (en) * | 2014-09-02 | 2014-12-10 | 音品电子（深圳）有限公司 | A kind of slim supersound projector |
| CN204392550U (en) * | 2014-12-26 | 2015-06-10 | 汉得利（常州）电子股份有限公司 | New-type loudspeaker vibrating diaphragm and New-type loudspeaker |
-
2016
- 2016-06-29 CN CN201610496693.7A patent/CN106060730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080137902A1 (en) * | 2006-12-07 | 2008-06-12 | Bohlender Jack T | Highly elongated loudspeaker and motor |
| CN102970647A (en) * | 2012-11-16 | 2013-03-13 | 嘉善恩益迪电声技术服务有限公司 | Simulating calculation method for nonlinear characteristics in loudspeaker vibration |
| CN204014053U (en) * | 2014-09-02 | 2014-12-10 | 音品电子（深圳）有限公司 | A kind of slim supersound projector |
| CN204392550U (en) * | 2014-12-26 | 2015-06-10 | 汉得利（常州）电子股份有限公司 | New-type loudspeaker vibrating diaphragm and New-type loudspeaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108024182A (en) * | 2017-11-23 | 2018-05-11 | 瑞声科技(新加坡)有限公司 | Minitype acoustic generator and its assembly method |
| CN108024182B (en) * | 2017-11-23 | 2020-07-14 | 瑞声科技(新加坡)有限公司 | Miniature acoustic generator and assembly method thereof |
Also Published As
| Publication number | Publication date |
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| CN106060730B (en) | 2019-05-03 |
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