CN108391214A - Vibrational system and loud speaker - Google Patents
Vibrational system and loud speaker Download PDFInfo
- Publication number
- CN108391214A CN108391214A CN201810501240.8A CN201810501240A CN108391214A CN 108391214 A CN108391214 A CN 108391214A CN 201810501240 A CN201810501240 A CN 201810501240A CN 108391214 A CN108391214 A CN 108391214A
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- voice coil
- vibrational system
- outlet side
- trapezoidal
- 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.)
- Pending
Links
- 230000002787 reinforcement Effects 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 238000005452 bending Methods 0.000 claims description 5
- 210000001624 hip Anatomy 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 6
- 230000010287 polarization Effects 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention discloses a kind of vibrational system, including vibrating diaphragm and secure bond in the voice coil of the diaphragm surface, the voice coil includes the voice coil ontology of annular and the lead from the extraction of the same side of the voice coil ontology, the voice coil ontology includes the outlet side positioned at the lead extraction location, and the free side opposite with the outlet side, the vibrating diaphragm includes vibrating diaphragm body part and is incorporated into the vibrating diaphragm reinforcement part on vibrating diaphragm body part surface, the quality that the vibrating diaphragm reinforcement part corresponds to the part of the outlet side is less than the quality that the vibrating diaphragm reinforcement part corresponds to the part of the free side.The vibrating diaphragm of the present invention corresponds to voice coil and draws the quality that the quality of side section is less than vibrating diaphragm corresponding to the free side section of voice coil, to balance the quality of voice coil leads, the polarization phenomena caused by the Mass Distribution of vibrational system is unbalanced is reduced, so as to improve the acoustic mass of loud speaker.
Description
Technical field
The present invention relates to acoustical devices.More particularly, to a kind of vibrational system, and raising applied to this vibrational system
Sound device.
Background technology
Currently, Microspeaker in the prior art includes vibrational system, magnetic circuit system and auxiliary system.Wherein, it shakes
Dynamic system includes vibrating diaphragm and voice coil.Voice coil is sticked in the side of vibrating diaphragm.Voice coil has lead for being connect with external circuit.Magnetic circuit
System includes centring magnet, side magnet, center washer and side washer.Wherein, center washer is sticked on centring magnet, Bian Hua
Department is sticked on the magnet of side, center washer and centring magnet and while washer and while magnet between form magnetic gap.Voice coil is inserted into magnetic
In magnetic gap in the system of road.After voice coil is passed through alternating current, voice coil, by upper and lower ampere force effect, makes in magnetic gap
Voice coil drives vibrating diaphragm up-down vibration.There is centre of oscillation position spatially in vibrational system, ideally vibrational system
Barycenter overlapped with the centre of oscillation, the barycenter of vibrational system levels off to zero relative to the resultant moment in the centre of oscillation at this time.Due to
Voice coil is provided with hanging lead, and the quality of the outlet side and free side that lead to voice coil is not completely equivalent, and is existed and is unevenly distributed
The case where, this will make the barycenter of vibrational system deviate the centre of oscillation, and vibrational system is caused to polarize, and be increased to be distorted,
When polarizing serious, voice coil and magnetic structure wiping are touched, and music effect is seriously affected.
Accordingly, it is desirable to provide a kind of novel vibrational system, to overcome defect existing in the prior art.
Invention content
The purpose of the present invention is to provide one kind capable of adjusting centroid position, to improve the vibrational system of polarization phenomena.
According to an aspect of the invention, there is provided a kind of vibrational system, including vibrating diaphragm and secure bond are shaken in described
The voice coil of film surface, the voice coil include the voice coil ontology of annular and the lead drawn from the same side of the voice coil ontology,
The voice coil ontology includes the outlet side and the free side opposite with the outlet side positioned at the lead extraction location, institute
It states vibrating diaphragm to include vibrating diaphragm body part and be incorporated into the vibrating diaphragm reinforcement part on vibrating diaphragm body part surface, the vibrating diaphragm reinforcement part corresponds to institute
The quality for stating the part of outlet side is less than the quality that the vibrating diaphragm reinforcement part corresponds to the part of the free side.
Preferably, the vibrating diaphragm reinforcement part is set as by the gradual increased shape of the area for drawing lateral free side.
Preferably, the vibrating diaphragm reinforcement part is set as trapezoidal shape, and the trapezoidal short side corresponds to the outlet side, ladder
The long side of shape corresponds to the free side.
Preferably, the two trapezoidal waists are set as being recessed inwardly arc-shaped.
Preferably, the vibrating diaphragm body part includes sequentially connected central part, ring portion and fixed part from inside to outside, described
Voice coil secure bond is in the lower surface of the central part, and vibrating diaphragm reinforcement part secure bond is in the upper surface of the central part.
Preferably, the part in the outside of the vibrating diaphragm reinforcement part is provided with reinforcing rib in the centre；It is described to add
Strengthening tendons correspond to the outlet side setting.
Preferably, the reinforcing rib is directed away from the voice coil side by central part bending and convexes to form or by described
Central part bending is recessed to be formed towards close to the voice coil side.
Preferably, the reinforcing rib is arranged in the trapezoidal both sides, and multiple reinforcing ribs are arranged per side, both sides it is described
Multiple reinforcing ribs dissipate arrangement towards the trapezoidal center.
Preferably, the cross sectional shape of the reinforcing rib is rectangle, semicircle or triangle.
According to another aspect of the present invention, a kind of loud speaker is provided, which includes above-mentioned vibrational system.
Beneficial effects of the present invention are as follows：
The present invention makes vibrating diaphragm be less than corresponding to the quality of voice coil extraction side section and shakes by adjusting the shape of vibrating diaphragm reinforcement part
Film corresponds to the quality of the free side section of voice coil, to balance the quality of voice coil leads, reduces the quality point due to vibrational system
Polarization phenomena caused by cloth is unbalanced, so as to improve the acoustic mass of loud speaker.
Description of the drawings
Specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the decomposition texture schematic diagram of the vibrational system of the present invention.
Fig. 2 shows the decomposition texture schematic diagrams of the loud speaker of the present invention.
Specific implementation mode
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
As shown in Figure 1, the vibrational system 300 of one embodiment of the present of invention, which includes vibrating diaphragm 10 and combination, is fixed on vibrating diaphragm
The voice coil 20 on 10 surfaces, vibrating diaphragm 10 include the vibrating diaphragm reinforcement part that 11 surface of vibrating diaphragm body part is fixed in vibrating diaphragm body part 11 and combination
12, voice coil 20 includes the voice coil ontology 21 of annular and the lead 22 from the extraction of the same side of voice coil ontology 21, and lead 22 is outstanding
A pair of sky setting.Voice coil ontology 21 include positioned at 22 extraction location of lead outlet side 23 and it is opposite with outlet side 23 from
By side 24, since outlet side 23 and the quality of free side 24 are not completely equivalent, the amplitude of the larger outlet side 23 of quality is smaller, matter
The amplitude for measuring smaller free side 24 is larger, and the imbalance of amplitude can make vibrational system polarization problem occur.Therefore the present invention
The area that vibrating diaphragm reinforcement part 12 corresponds to the part of outlet side is less than the area for corresponding to free side, i.e. vibrating diaphragm reinforcement part 12 corresponds to
It is less than the quality corresponding to free side in the quality of outlet side 23, the barycenter of vibrational system is adjusted by vibrating diaphragm reinforcement part 12, is made
The barycenter of vibrational system is deviated to the centre of oscillation, can be reduced and be polarized caused by the Mass Distribution of vibrational system is unbalanced
Phenomenon, so as to improve the acoustic mass of loud speaker.
In the present embodiment, vibrating diaphragm reinforcement part 12 is set as from outlet side 23 to the gradual increased shape of the area of free side 24
Shape.Specifically, vibrating diaphragm reinforcement part 12 is set as trapezoidal shape, trapezoidal short side corresponds to outlet side 23, and trapezoidal long side corresponds to
In free side 24, two trapezoidal waists are set as being recessed inwardly arc-shaped.Using the vibrating diaphragm reinforcement part 12 of above-mentioned shape so that shaking
Film 10 corresponds to quality of the quality less than free side 24 of outlet side 23, balances the quality of lead 22, finally so that vibration system
The barycenter of system is deviated to the centre of oscillation, reduces the polarization phenomena caused by Mass Distribution unevenness.The shape of vibrating diaphragm reinforcement part 12
Can be trapezoidal can also be triangle, and those skilled in the art can according to actual needs become trapezoidal or triangle
Shape makes the barycenter of vibrational system be overlapped as possible with the centre of oscillation, and reduction polarizes caused by mass unbalance.
Further, vibrating diaphragm body part 11 includes sequentially connected central part 13, ring portion 14 and fixed part from inside to outside
15,20 secure bond of voice coil is in the lower surface of central part 13, and 12 secure bond of vibrating diaphragm reinforcement part is in the upper surface of central part 13.
Central part 13, which is located on the outer surface of vibrating diaphragm reinforcement part 12, is provided with reinforcing rib 16.In capable of being improved due to vibrating diaphragm reinforcement part 12
The rigidity of center portion 13, not by the region (position for mainly corresponding to outlet side) that vibrating diaphragm reinforcement part 12 is covered, by setting
Reinforcing rib 16 is set to improve rigidity.Specifically, reinforcing rib 16 is arranged on the outside of two waists of the vibrating diaphragm reinforcement part 12 of trapezoidal shape, often
3 reinforcing ribs are arranged in side, and the reinforcing rib per side dissipates towards trapezoidal center and is arranged.Reinforcing rib 16 from 13 surface of central part to
Upper bending protrusion or recess formation downwards in actual production can be when suppressing vibrating diaphragm, while suppressing and adding on central part 13
Strengthening tendons 16.The reinforcing rib 16 of present embodiment is upwardly away from voice coil direction and convexes to form, and the cross sectional shape of reinforcing rib 16 can be
Rectangle, triangle or semicircle.
Based on above-mentioned design, the present invention also provides a kind of loud speaker, one embodiment as shown in Figure 2, the loud speaker packet
Include vibrational system 300 and magnetic circuit system 400.Magnetic circuit system includes conductive magnetic yoke 43, secure bond in the magnetic of 43 upper surface of conductive magnetic yoke
Iron 42 and the washer 41 for being incorporated into magnet upper surface, form magnetic field, specifically between conductive magnetic yoke 43, magnet 42 and washer 41
, form magnetic gap between the side wall and magnet 42 of conductive magnetic yoke 43.Voice coil 20 is suspended in the magnetic gap, and voice coil 20, which is equipped with, to be drawn
Line 22, lead 22 are a pair being vacantly arranged.Wherein, on lead 22 can with connection terminal, by terminal voice coil 20 can with it is outer
Portion's circuit connection.When the audio signal of external circuit is by voice coil 20, the voice coil 20 of energization is in magnetic field internal vibration, the sound of vibration
Circle 20 drives vibrating diaphragm 10 to vibrate, and vibrating diaphragm instigates air sounding.The loud speaker of the present invention further includes front housing 51 and rear shell 52, front housing 51
Secure bond forms the appearance that can accommodate vibrational system 300 and magnetic circuit system 400 in rear shell 52 between front housing 51 and rear shell 52
Receive space.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical solution is extended out still in protection scope of the present invention.
Claims (10)
1. a kind of vibrational system, including vibrating diaphragm and secure bond, in the voice coil of the diaphragm surface, the voice coil includes annular
Voice coil ontology and the lead drawn from the same side of the voice coil ontology, the voice coil ontology includes drawing positioned at the lead
The outlet side of out position and the free side opposite with the outlet side, the vibrating diaphragm include that vibrating diaphragm body part and being incorporated into shakes
The vibrating diaphragm reinforcement part on membrane body portion surface, which is characterized in that the vibrating diaphragm reinforcement part corresponds to the matter of the part of the outlet side
Amount is less than the quality that the vibrating diaphragm reinforcement part corresponds to the part of the free side.
2. vibrational system according to claim 1, which is characterized in that the vibrating diaphragm reinforcement part is set as by the outlet side
To the gradual increased shape of area of free side.
3. vibrational system according to claim 2, which is characterized in that the vibrating diaphragm reinforcement part is set as trapezoidal shape, institute
It states trapezoidal short side and corresponds to the free side corresponding to the outlet side, trapezoidal long side.
4. vibrational system according to claim 3, which is characterized in that the two trapezoidal waists are set as the circle being recessed inwardly
Arc.
5. vibrational system according to claim 4, which is characterized in that the vibrating diaphragm body part includes connecting successively from inside to outside
Central part, ring portion and the fixed part connect, the voice coil secure bond is in the lower surface of the central part, the vibrating diaphragm reinforcement part
Secure bond is in the upper surface of the central part.
6. according to any vibrational systems of claim 1-5, which is characterized in that mended in the vibrating diaphragm in the centre
The part in the outside in strong portion is provided with reinforcing rib；The reinforcing rib corresponds to the outlet side setting.
7. vibrational system according to claim 6, which is characterized in that the reinforcing rib is by central part bending towards far
It convexes to form from the voice coil side or is formed by central part bending towards being recessed close to the voice coil side.
8. vibrational system according to claim 6, which is characterized in that the reinforcing rib is arranged in the trapezoidal both sides,
And multiple reinforcing ribs are set per side, the multiple reinforcing rib of both sides dissipates arrangement towards the trapezoidal center.
9. vibrational system according to claim 6, which is characterized in that the cross sectional shape of the reinforcing rib is rectangle, semicircle
Shape or triangle.
10. a kind of loud speaker, which is characterized in that the loud speaker includes any vibrational systems of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810501240.8A CN108391214A (en) | 2018-05-23 | 2018-05-23 | Vibrational system and loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810501240.8A CN108391214A (en) | 2018-05-23 | 2018-05-23 | Vibrational system and loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108391214A true CN108391214A (en) | 2018-08-10 |
Family
ID=63071406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810501240.8A Pending CN108391214A (en) | 2018-05-23 | 2018-05-23 | Vibrational system and loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108391214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547901A (en) * | 2019-01-25 | 2019-03-29 | 深圳市信维声学科技有限公司 | Microspeaker |
| CN112261541A (en) * | 2020-09-23 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
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| CN201742543U (en) * | 2010-07-09 | 2011-02-09 | 瑞声光电科技(常州)有限公司 | Diaphragm structure and electromagnetic loudspeaker thereby |
| CN202949561U (en) * | 2012-11-29 | 2013-05-22 | 歌尔声学股份有限公司 | Miniature loudspeaker |
| CN204119485U (en) * | 2014-08-29 | 2015-01-21 | 歌尔声学股份有限公司 | A kind of diaphragm of loudspeaker |
| CN104703100A (en) * | 2015-03-11 | 2015-06-10 | 歌尔声学股份有限公司 | Vibrating film and loudspeaker device |
| CN204697286U (en) * | 2015-06-05 | 2015-10-07 | 歌尔声学股份有限公司 | Vibration-sound generating device |
| CN205408145U (en) * | 2016-02-26 | 2016-07-27 | 歌尔声学股份有限公司 | Miniature sounder |
| CN206498529U (en) * | 2017-02-08 | 2017-09-15 | 歌尔股份有限公司 | Loudspeaker |
| CN207070339U (en) * | 2017-07-10 | 2018-03-02 | 歌尔股份有限公司 | A kind of sound-producing device |
| CN207070343U (en) * | 2017-07-18 | 2018-03-02 | 歌尔科技有限公司 | Loudspeaker |
| CN207124757U (en) * | 2017-08-10 | 2018-03-20 | 歌尔科技有限公司 | Vibrational system and loudspeaker monomer |
| CN207124750U (en) * | 2017-07-28 | 2018-03-20 | 歌尔科技有限公司 | Loudspeaker monomer, loudspeaker module and electronic equipment |
| CN208581349U (en) * | 2018-05-23 | 2019-03-05 | 歌尔股份有限公司 | Vibrational system and loudspeaker |
-
2018
- 2018-05-23 CN CN201810501240.8A patent/CN108391214A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201742543U (en) * | 2010-07-09 | 2011-02-09 | 瑞声光电科技(常州)有限公司 | Diaphragm structure and electromagnetic loudspeaker thereby |
| CN202949561U (en) * | 2012-11-29 | 2013-05-22 | 歌尔声学股份有限公司 | Miniature loudspeaker |
| CN204119485U (en) * | 2014-08-29 | 2015-01-21 | 歌尔声学股份有限公司 | A kind of diaphragm of loudspeaker |
| CN104703100A (en) * | 2015-03-11 | 2015-06-10 | 歌尔声学股份有限公司 | Vibrating film and loudspeaker device |
| CN204697286U (en) * | 2015-06-05 | 2015-10-07 | 歌尔声学股份有限公司 | Vibration-sound generating device |
| CN205408145U (en) * | 2016-02-26 | 2016-07-27 | 歌尔声学股份有限公司 | Miniature sounder |
| CN206498529U (en) * | 2017-02-08 | 2017-09-15 | 歌尔股份有限公司 | Loudspeaker |
| CN207070339U (en) * | 2017-07-10 | 2018-03-02 | 歌尔股份有限公司 | A kind of sound-producing device |
| CN207070343U (en) * | 2017-07-18 | 2018-03-02 | 歌尔科技有限公司 | Loudspeaker |
| CN207124750U (en) * | 2017-07-28 | 2018-03-20 | 歌尔科技有限公司 | Loudspeaker monomer, loudspeaker module and electronic equipment |
| CN207124757U (en) * | 2017-08-10 | 2018-03-20 | 歌尔科技有限公司 | Vibrational system and loudspeaker monomer |
| CN208581349U (en) * | 2018-05-23 | 2019-03-05 | 歌尔股份有限公司 | Vibrational system and loudspeaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109547901A (en) * | 2019-01-25 | 2019-03-29 | 深圳市信维声学科技有限公司 | Microspeaker |
| CN112261541A (en) * | 2020-09-23 | 2021-01-22 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
| CN112261541B (en) * | 2020-09-23 | 2022-03-29 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound production device |
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