CN105050007A - High-power thin type speaker - Google Patents
High-power thin type speaker Download PDFInfo
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- CN105050007A CN105050007A CN201510535604.0A CN201510535604A CN105050007A CN 105050007 A CN105050007 A CN 105050007A CN 201510535604 A CN201510535604 A CN 201510535604A CN 105050007 A CN105050007 A CN 105050007A
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- voice coil
- ring
- loudspeaker voice
- coil loudspeaker
- power thin
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Abstract
The invention discloses a high-power thin type speaker, comprising a vibration system. The vibration system comprises a voice coil. At least one first corrugated ring for fixing the voice coil is arranged outside the voice coil. At least one second corrugated ring for fixing the voice coil is arranged inside the voice coil. The first corrugated ring and the second corrugated ring are concentrically arranged with the voice coil. By arranging the second corrugated ring inside the voice coil, the high-power thin type speaker of the invention rationally uses the inner space of the voice coil and reduces the size of the vibration system to enable the speaker to meet the thin type requirement. By simultaneously arranging the first corrugated ring outside the voice coil and arranging the second corrugated ring inside the voice coil to fix the voice coil, the voice coil could obtain better centering effect. The bearable power of the whole speaker is improved at the same time so that the high-power thin type speaker has higher loudness and better tone quality.
Description
Technical field
The present invention relates to loudspeaker techniques field, be specifically related to a kind of high-power thin speaker.
Background technology
Along with the development of society, people more and more prefer to the sound system that volume is little, slim, tonequality is graceful, are obedient to public demand, and the structure of loud speaker also tends to the mode developing into single suspension, cause loud speaker to bear power thus more and more lower, thus reduce original loudness and tonequality.
Therefore, keeping its original loudness while there is graceful tonequality in order to make loud speaker, needing the born power improving loud speaker.The method of the born power of traditional raising loud speaker is the loud speaker increasing N times of quantity, but result causes sound equipment cost increase, although reach the slim requirement of loud speaker but the volume of loud speaker increases, this enters again an inevitable vicious circle.What the main cause producing this vicious circle was that loud speaker adopts when pursuing slim is all the single suspension type reducing a sheet (ring), namely adopt the form of single sheet (ring), cause voice coil loudspeaker voice coil unstable, the born power of loud speaker is had a greatly reduced quality, have to make the voice coil loudspeaker voice coil of loud speaker and determine core effect preferably, harder material can be adopted to make a sheet (ring), and a sheet (ring) for harder material can make the compliance of loud speaker, amplitude be restricted, affect the tonequality of loud speaker further.
Summary of the invention
The object of the present invention is to provide a kind of high-power thin speaker, this loud speaker can bear larger power while meeting thin type structure, and the tonequality of loud speaker is also higher.
For reaching this object, the present invention by the following technical solutions:
A kind of high-power thin speaker is provided, involving vibrations system, described vibrational system comprises voice coil loudspeaker voice coil, first ring for fixing described voice coil loudspeaker voice coil is at least set in the outside of described voice coil loudspeaker voice coil, at least arrange second ring for fixing described voice coil loudspeaker voice coil in the inside of described voice coil loudspeaker voice coil, described first ring, described second ring are all arranged with described voice coil loudspeaker voice coil is concentric.
Beneficial effect of the present invention: the present invention is by being arranged on voice coil loudspeaker voice coil inside by the second ring, the Appropriate application inner space of voice coil loudspeaker voice coil, reduce the volume of vibrational system, loud speaker is made to meet slim requirement, simultaneously by voice coil loudspeaker voice coil outer setting first ring, the second ring be set in voice coil loudspeaker voice coil inside carry out determining core to voice coil loudspeaker voice coil, voice coil loudspeaker voice coil is obtained and better determines core effect, promote the power born of whole loud speaker simultaneously, thus make high-power thin speaker have higher loudness and the performance of better tonequality.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention below.Apparently, below described accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cross-sectional schematic of the high-power thin speaker described in the embodiment of the present invention.
Fig. 2 is the decomposing schematic representation of the high-power thin speaker described in the embodiment of the present invention.
Fig. 3 is the cross-sectional schematic of the high-power thin speaker described in another embodiment of the present invention.
Fig. 4 is the decomposing schematic representation of the high-power thin speaker described in another embodiment of the present invention.
In figure:
1, voice coil loudspeaker voice coil; 11, speech coil framework; 12, voice coil loudspeaker voice coil body; 2, the first ring; 21, the first rebate; 3, the second ring; 31, the second rebate; 4, frame group; 5, pad; 51, the first centre bore; 6, short-circuited conducting sleeve; 61, the second centre bore; 7, magnetic conduction sheet; 8, magnet steel; 9, magnetic conductor bowl; 91, boss; 10, dust cap.
Embodiment
Technical scheme of the present invention is further illustrated by specific embodiment below in conjunction with Fig. 1 ~ 4.
Fig. 1 is the cross-sectional schematic of the high-power thin speaker described in the present embodiment, and Fig. 2 is the decomposing schematic representation of the high-power thin speaker described in the present embodiment.As shown in Figure 1, 2, the high-power thin speaker involving vibrations system of the present embodiment, vibrational system comprises voice coil loudspeaker voice coil 1, first ring 2 for fixing voice coil loudspeaker voice coil 1 is at least set in the outside of voice coil loudspeaker voice coil 1, at least arrange second ring 3, first ring 2, second ring 3 for fixing voice coil loudspeaker voice coil 1 all to arrange with voice coil loudspeaker voice coil 1 is concentric in the inside of voice coil loudspeaker voice coil 1.The quantity of first ring 2, second ring 3 of the present embodiment is unrestricted, it can be each one of the first ring 2, second ring 3, also can be the first ring 2 one, the second ring 3 two, or the first ring 2 two, the second ring 3 two, there is multiple different compound mode.By the second ring 3 being arranged on voice coil loudspeaker voice coil 1 inner, the Appropriate application inner space of voice coil loudspeaker voice coil 1, reduces the volume of vibrational system, makes loud speaker meet slim requirement; By all arranging ring the inside and outside of voice coil loudspeaker voice coil 1, and each ring is arranged with voice coil loudspeaker voice coil 1 is concentric, voice coil loudspeaker voice coil 1 can be made in use can to obtain and better to determine core effect, the power born of whole loud speaker can also be promoted simultaneously, thus make high-power thin speaker have higher loudness and better tonequality.
The second ring 2 in the present embodiment also can be called to be determined core and props up sheet; The position setting up and down of the first ring 2 and the second ring 3 is unfixed, and the first ring 2 can be in same level with the second ring 3, also can mutual dislocation up and down; First ring 2, second ring 3 can directly be connected with voice coil loudspeaker voice coil 1, to participate in the motion of voice coil loudspeaker voice coil directly, also can be connected with voice coil loudspeaker voice coil 1 by other intermediate members, such as, arrange sound basin on voice coil loudspeaker voice coil top or periphery, the inward flange of the first ring 2 is connected with sound basin end.And the outward flange of the second ring 3 can directly be connected with voice coil loudspeaker voice coil 1, also can be connected with voice coil loudspeaker voice coil 1 by other intermediate members, or the first ring 2, second ring 3 is fixed with voice coil loudspeaker voice coil body 12, or on voice coil loudspeaker voice coil 1, through hole is set, first ring 2 is directly fixedly connected with the second ring 3 through this through hole, indirectly to participate in moving up and down of voice coil loudspeaker voice coil 1, or the first ring 2 and the second ring 3 are made of one, voice coil loudspeaker voice coil 1 top is fixed between the first ring 2 and the second ring 3, to drive moving up and down of voice coil loudspeaker voice coil 1.The thickness of the high-power thin speaker of the present embodiment is below 20mm.
As concrete execution mode, the first ring 2 and the second ring 3 are respectively arranged with the first rebate 21, second rebate 31 for strengthening ring elastic force.By arranging rebate on ring, the elastic force of ring can be strengthened, and there is the ring compared with high-tension, can ensure that voice coil loudspeaker voice coil 1 is by the basic role power supported on the one hand, the compliance that loud speaker needs and amplitude can be ensured on the other hand, and then make loud speaker have better tonequality.
As concrete execution mode, the first ring 2 arranges at least two the first rebate 21 along its cross section, and the opening of adjacent two the first rebate 21 is positioned at the heteropleural of the first ring 2; Or the second ring 3 arranges at least two the second rebate along its cross section, and the opening of adjacent two the second rebate is positioned at the heteropleural of the second ring 3, and namely the cross section of the first ring 2 or the second ring 3 is waveform (not shown); By arranging the rebate that two openings are positioned at heteropleural in the cross section of ring, the stability of the strain of ring can be strengthened, ensure that voice coil loudspeaker voice coil 1 prevents radial skew while moving vertically.
As concrete execution mode, the first rebate 21 is for being arranged at the arcuate structure on the first ring 2 surface; Or the second rebate 31 is for being arranged at the arcuate structure on the second ring 3 surface.Wherein, the first rebate 21 is projection or recessed in the arcuate structure on the first ring 2 surface, and the second rebate 31 is projection or recessed in the arcuate structure on the second ring 3 surface; The rebate of arcuate structure has enough displacements when can ensure that voice coil loudspeaker voice coil 1 moves vertically.
As concrete execution mode, the high-power thin speaker in above-described embodiment also comprises the support system for supporting vibrational system, and support system comprises the frame group 4 being surrounded on voice coil loudspeaker voice coil 1 outside; The outward flange of the first ring 2 is connected with frame group 4, and the inward flange of the first ring 2 is connected with voice coil loudspeaker voice coil 1; The outward flange of the second ring 3 is connected with voice coil loudspeaker voice coil 1, and the inward flange of the second ring 3 is connected with magnetic circuit system by pad 5.As shown in Figure 3,4, voice coil loudspeaker voice coil 1 is connected with frame group 4 by the first ring 2, and voice coil loudspeaker voice coil 1 is connected with magnetic circuit system, thus carries out determining core to voice coil loudspeaker voice coil 1 by the second ring 3, pad 5, to improve the born power of voice coil loudspeaker voice coil 1.The object be arranged on by pad 5 between second ring 3 and magnetic circuit system is that the heat in order to be produced by magnetic circuit system cuts off, and avoids parts overheated, and can ensure that the second ring 3 has enough spaces.
As concrete execution mode, magnetic circuit system comprises the short-circuited conducting sleeve 6 of opening pad 5 dorsad, and short-circuited conducting sleeve 6 is arranged at the inside of voice coil loudspeaker voice coil 1.Arranging of short-circuited conducting sleeve 6 can make voice coil loudspeaker voice coil input current increase, thus the high frequency output of high-power thin speaker is increased, frequency response broadening, reduces distortion.The axis of the pad 5 in the present embodiment is provided with the first centre bore 51, one end that short-circuited conducting sleeve 6 contacts with pad 5 is provided with second centre bore 61 coaxial with the first centre bore 51, the aperture of the first centre bore 51 in the present embodiment is less than the aperture of the second centre bore 61, the upper end of pad 5 is fixedly connected with the second ring 3, the lower end of pad 5 is provided with the step of lower floor from outside to inside, and the shape of step and short-circuited conducting sleeve 6 contact site is to coordinating.
Particularly, magnetic circuit system comprises the magnetic conductor bowl 9 of opening towards voice coil loudspeaker voice coil 1, and magnetic conductor bowl 9 is connected with the inner side of frame group 4, and the bottom of magnetic conductor bowl 9 is convexly equipped with boss 91 towards voice coil loudspeaker voice coil 1.By arranging boss 91, the thickness of other magnet assemblies be arranged in boss 91 can be reduced, reducing the production cost of the high-power thin speaker of the present embodiment on the one hand, reduce the actual volume of high-power thin speaker on the other hand.
Particularly, between magnetic conductor bowl 9 and voice coil loudspeaker voice coil 1, there is gap, produce friction between magnetic conductor bowl 9 during to avoid voice coil loudspeaker voice coil 1 up-down vibration and affect the vibrating effect of voice coil loudspeaker voice coil 1.
Magnetic circuit system in the present embodiment also comprises the magnet steel 8 being positioned at short-circuited conducting sleeve 6 inside, and the bottom of magnet steel 8 is connected with boss 91, and the top of magnet steel 8 is connected with the upper end of short-circuited conducting sleeve 6 by magnetic conduction sheet 7.This magnetic circuit system can reduce magnetic field loss of energy, makes the magnetic field energy being supplied to voice coil loudspeaker voice coil 1 larger, contributes to loud speaker when thin, obtain better performance, make tonequality more beautiful.
In above-described embodiment, high-power thin speaker also comprises dust cap 10, and dust cap 10 be located in voice coil loudspeaker voice coil 1 one end away from boss 91.Dust cap 10 can prevent grieshoch from entering in high-power thin speaker, avoids vibrational system to be affected, and adds the area of radiation and improve Frequency Response.
Voice coil loudspeaker voice coil 1 in above-described embodiment comprises speech coil framework 11 and is arranged at the voice coil loudspeaker voice coil body 12 of speech coil framework 11 outside, and voice coil loudspeaker voice coil body 12 is circular or racetrack (not shown).Voice coil loudspeaker voice coil body 12 is arranged on speech coil framework 11 by the present embodiment, and the first ring 2, second ring 3 can be made to have larger displacement space.Certainly, doing thinner to make loud speaker, also can cancel speech coil framework 11, the first ring 2, second ring 3 is directly fixed with voice coil loudspeaker voice coil body 12.
The first ring 2 in above-described embodiment is circular or racetrack ring; Second ring 3 is circular or racetrack ring (not shown).Second ring 3 of the present embodiment is provided with the first louvre, by arranging this louvre on the second ring 3, the heat of voice coil loudspeaker voice coil 1 inside is distributed smoothly.Form and the quantity of the louvre in the present embodiment are unrestricted, and the second ring 3 also can not arrange louvre.
As shown in Figure 2,4, speech coil framework 11 being also provided with the second louvre, in like manner, by arranging louvre, the heat of voice coil loudspeaker voice coil 1 inside can being allowed by the second louvre Quick diffusing in the colder air in outside.The form of the second louvre in the present embodiment, size and quantity are unrestricted, and speech coil framework 11 also can not arrange louvre.
More specifically, above-mentioned first louvre is arranged in the first rebate 21 of the first ring 2, distributes smoothly to make the heat of voice coil loudspeaker voice coil 1 inside.The first ring 2, second ring 3 in the present embodiment is elastomeric material, and concrete material type is unrestricted, can be foamed material or thermoplastic, also can be the compound of bi-material, and the material of the first ring 2, second ring 3 is not necessarily identical.
Above content is only preferred embodiment of the present invention, high-power thin speaker of the present invention is not limited to said structure design, for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (10)
1. a high-power thin speaker, involving vibrations system, described vibrational system comprises voice coil loudspeaker voice coil (1), it is characterized in that, first ring (2) for fixing described voice coil loudspeaker voice coil (1) is at least set in the outside of described voice coil loudspeaker voice coil (1), at least arrange second ring (3) for fixing described voice coil loudspeaker voice coil (1) in the inside of described voice coil loudspeaker voice coil (1), described first ring (2), described second ring (3) are all arranged with described voice coil loudspeaker voice coil (1) is concentric.
2. high-power thin speaker according to claim 1, it is characterized in that, described first ring (2) and the second ring (3) being respectively arranged with the first rebate (21), the second rebate (31) for strengthening ring elastic force.
3. high-power thin speaker according to claim 2, it is characterized in that, described first ring (2) arranges at least two described first rebate (21) along its cross section, and the opening of adjacent two described first rebate (21) is positioned at the heteropleural of described first ring (2); Or,
Described second ring (3) arranges at least two described second rebate (31) along its cross section, and the opening of adjacent two described second rebate (31) is positioned at the heteropleural of described second ring (3).
4. high-power thin speaker according to claim 2, is characterized in that, described first rebate (21) is for being arranged at the arcuate structure on described first ring (2) surface; Or,
Described second rebate (31) is for being arranged at the arcuate structure on described second ring (3) surface.
5. the high-power thin speaker according to any one of Claims 1-4, it is characterized in that, described high-power thin speaker also comprises the support system for supporting described vibrational system, and described support system comprises the frame group (4) being surrounded on described voice coil loudspeaker voice coil (1) outside;
The outward flange of described first ring (2) is connected with described frame group (4), and the inward flange of described first ring (2) is connected with described voice coil loudspeaker voice coil (1);
The outward flange of described second ring (3) is connected with described voice coil loudspeaker voice coil (1), and the inward flange of described second ring (3) is connected with magnetic circuit system by pad (5).
6. high-power thin speaker according to claim 5, it is characterized in that, described magnetic circuit system comprises the short-circuited conducting sleeve (6) of opening described pad (5) dorsad, and described short-circuited conducting sleeve (6) is arranged at the inside of described voice coil loudspeaker voice coil (1).
7. high-power thin speaker according to claim 5, it is characterized in that, described magnetic circuit system comprises the magnetic conductor bowl (9) of opening towards described voice coil loudspeaker voice coil (1), described magnetic conductor bowl (9) is connected with the inner side of described frame group (4), and the bottom of described magnetic conductor bowl (9) is convexly equipped with boss (91) towards described voice coil loudspeaker voice coil (1).
8. high-power thin speaker according to claim 7, is characterized in that, has gap between described magnetic conductor bowl (9) and described voice coil loudspeaker voice coil (1).
9. high-power thin speaker according to claim 7, it is characterized in that, described magnetic circuit system also comprises the magnet steel (8) being positioned at described short-circuited conducting sleeve (6) inside, the bottom of described magnet steel (8) is connected with described boss (91), and the top of described magnet steel (8) is connected with described short-circuited conducting sleeve (6) by magnetic conduction sheet (7).
10. the high-power thin speaker according to any one of claim 7 to 9, it is characterized in that, also comprise dust cap (10), described dust cap (10) be located in described voice coil loudspeaker voice coil (1) one end away from described boss (91).
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CN201510535604.0A CN105050007A (en) | 2015-08-27 | 2015-08-27 | High-power thin type speaker |
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CN201510535604.0A CN105050007A (en) | 2015-08-27 | 2015-08-27 | High-power thin type speaker |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2566827A (en) * | 2017-09-21 | 2019-03-27 | Premium Loudspeakers Hui Zhou Co Ltd | Loudspeaker magnetic circuit system having u-shaped short-circuit ring |
CN111405428A (en) * | 2019-12-27 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Sound production device |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2824489Y (en) * | 2005-10-05 | 2006-10-04 | 孙逊 | Moving oil electric loudspeaker |
JP2008092030A (en) * | 2006-09-29 | 2008-04-17 | Matsushita Electric Ind Co Ltd | Speaker |
KR20090019176A (en) * | 2007-08-20 | 2009-02-25 | 엘지전자 주식회사 | An exciter and display device comprsing the same |
CN102378083A (en) * | 2010-08-12 | 2012-03-14 | 郭建文 | Dynamic damping middle/low-sound loudspeaker |
CN202353803U (en) * | 2011-11-09 | 2012-07-25 | 北京爱德发科技有限公司 | Coaxial loudspeaker unit |
CN102917300A (en) * | 2012-10-23 | 2013-02-06 | 宁波音王电声股份有限公司 | Moving coil loudspeaker |
CN204217122U (en) * | 2014-12-04 | 2015-03-18 | 姚岳阳 | The fixed loud speaker in outstanding limit |
CN204231663U (en) * | 2014-12-04 | 2015-03-25 | 姚岳阳 | Loud speaker |
CN204948342U (en) * | 2015-08-27 | 2016-01-06 | 国光电器股份有限公司 | High-power thin speaker |
-
2015
- 2015-08-27 CN CN201510535604.0A patent/CN105050007A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2824489Y (en) * | 2005-10-05 | 2006-10-04 | 孙逊 | Moving oil electric loudspeaker |
JP2008092030A (en) * | 2006-09-29 | 2008-04-17 | Matsushita Electric Ind Co Ltd | Speaker |
KR20090019176A (en) * | 2007-08-20 | 2009-02-25 | 엘지전자 주식회사 | An exciter and display device comprsing the same |
CN102378083A (en) * | 2010-08-12 | 2012-03-14 | 郭建文 | Dynamic damping middle/low-sound loudspeaker |
CN202353803U (en) * | 2011-11-09 | 2012-07-25 | 北京爱德发科技有限公司 | Coaxial loudspeaker unit |
CN102917300A (en) * | 2012-10-23 | 2013-02-06 | 宁波音王电声股份有限公司 | Moving coil loudspeaker |
CN204217122U (en) * | 2014-12-04 | 2015-03-18 | 姚岳阳 | The fixed loud speaker in outstanding limit |
CN204231663U (en) * | 2014-12-04 | 2015-03-25 | 姚岳阳 | Loud speaker |
CN204948342U (en) * | 2015-08-27 | 2016-01-06 | 国光电器股份有限公司 | High-power thin speaker |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2566827A (en) * | 2017-09-21 | 2019-03-27 | Premium Loudspeakers Hui Zhou Co Ltd | Loudspeaker magnetic circuit system having u-shaped short-circuit ring |
GB2566827B (en) * | 2017-09-21 | 2019-12-18 | Tymphany Acoustic Tech Huizhou Co Ltd | Loudspeaker magnetic circuit system having u-shaped short-circuit ring |
CN111405428A (en) * | 2019-12-27 | 2020-07-10 | 瑞声科技(新加坡)有限公司 | Sound production device |
CN111405428B (en) * | 2019-12-27 | 2021-07-09 | 瑞声科技(新加坡)有限公司 | Sound production device |
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Application publication date: 20151111 |