CN2312549Y - Symmetric driven integrated loudspeaker - Google Patents
Symmetric driven integrated loudspeaker Download PDFInfo
- Publication number
- CN2312549Y CN2312549Y CN 97214738 CN97214738U CN2312549Y CN 2312549 Y CN2312549 Y CN 2312549Y CN 97214738 CN97214738 CN 97214738 CN 97214738 U CN97214738 U CN 97214738U CN 2312549 Y CN2312549 Y CN 2312549Y
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- symmetry
- vibrating diaphragm
- integral speakers
- drives integral
- voice coil
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Abstract
The utility model relates to a broad diapason and low distortion loudspeaker. A magnetic circuit in which a vibrating film is arranged is formed by that a large-sized high magnetic flux density permanent magnet is arranged on the periphery or the central position, an inner and an outer magnet conducting frames are arranged on the N and S magnetic poles of the permanent magnet, thin copper foil, or aluminium foil, a vibrating film which is formed by being folded in a W or an M order and a suspending edge and a support body for supporting and suspending the vibrating film are arranged on the surface between an inner and an outer iron frames, and a plurality of sound permeating fence holes are arranged on the inner and the outer iron frames. The vibrating film forms sound pressure by that each ruffle is designed into different electric current flow direction, which generates transversal and symmetrical motion and pushes air.
Description
The utility model relates to a kind of symmetry and drives integral speakers, relates in particular to a kind of loudspeaker structure of custom design, constitutes a kind of vibrating diaphragm that forms in magnetic field, has the loud speaker of advantage such as wideband sound/low distortion.
Having the textural of loud speaker now, because advantages such as that " coil-moving speaker " has is simple in structure, be easy to make, cheap and sound equipment is done well, be the loud speaker that the most generally adopts now, but this type of coil-moving speaker is because the restriction of its structural design, promptly there are some shortcomings, below will illustrate one by one:
(1) problem of dtmf distortion DTMF: because the vibrating diaphragm (sound basin or cone) of this loud speaker is connected on the voice coil loudspeaker voice coil that is positioned at the permanent-magnetic field magnetic circuit for indirect mode, that is this vibrating diaphragm is not to be positioned on the position of permanent magnet field generation, so, when driving vibrating diaphragm more indirectly and move back and forth by voice coil loudspeaker voice coil, promptly produce the problem of multiple distortion, this type of problem of dtmf distortion DTMF, though can be improved by the material of suitable adjustment vibrating diaphragm own, resonant coefficient, but only belong to the practice of taking stopgap measures, and distortion level to improve effect also quite limited, have only the essential structure of radical change loud speaker to solve.
(2) frequency range is narrower: when this type of coil-moving speaker is desired to reach high frequency response, must use compact vibrating diaphragm, the effect of high-frequency vibration just can be provided, otherwise, when reaching LF-response, then must adopt large-sized vibrating diaphragm could produce enough sound press and reproduce overcast tonequality, therefore, reach the sound reproduction effect of gamut, need to use more than one loud speaker respectively as bass, the reproduction of middle pitch or high pitch, be so-called multitone road (Liang Yinlu, three sound roads or more) loud speaker, yet, for making each range all can reach the uniform frequency response, need to add the frequency divider of forming with passive components such as resistance/inductance, so that each range distinguishes, this measure, make between each loud speaker the problem that produces phase mutual interference and phase distortion and the cost of whole system, the also corresponding increase of complexity, the real non-design that belongs to the best.
Die and can't satisfy the requirement of wide range frequency response effect and low distortion in view of the loud speaker of aforementioned conventional monomer pattern, the utility model provides a kind of new-type loud speaker that addresses the above problem.
Main purpose of the present utility model is to provide a kind of symmetry to drive integral speakers, it mainly conducts on the front/rear chase of loud speaker by permanent magnet two magnetic pole and magnetic fields, and form N respectively, the S magnetic pole, the vibrating diaphragm of surface-coated thin layer Copper Foil or aluminium foil then is set with sus-pension between the front/rear chase, the cross section of this vibrating diaphragm is to be folded into the shape that continuous M and W interconnect, and by the Copper Foil of each gauffer or aluminium foil loop stream to particular design, it is just a plurality of that whole vibrating diaphragm is divided into, the design that reverse direction flow is staggered, so can signal circulation reach therebetween be subjected to before, under the effect of the magnetic line of force of back chase, make vibrating diaphragm present lateral symmetry motion, extruding of each gauffer of mat or expansion and reach and push air and produce sound press.
And with above-mentioned structural design, because vibrating diaphragm is to move in magnetic field, can reach the effect of direct driving, and its motion mode only is the angle that symmetrical expression ground changes each gauffer, but not the mode of vibrating diaphragm distortion can reach low distortion and the general wideer frequency response of coil-moving speaker.In addition, the actual Microspeaker that is indivedual independences of each section of vibrating diaphragm, that is, can form quantitative air extrusion amount dozens of being set on the whole vibrating diaphragm to the situation of hundreds of gauffers, also meet the requirement of high sound press, form the loud speaker of a kind of wide range, low distortion according to this.
Another purpose of the present utility model is to provide a kind of symmetry to drive integral speakers, that its structure can optionally be designed to is tapered, cylinder type, plate, ultrathin, semi-circular or other shapes and form different size dimensions, all can reach identical effect, have more the good characteristic of flexibility and variability when it is implemented.
Another purpose of the present utility model is to provide a kind of symmetry to drive integral speakers, it is attached to thin layer Copper Foil or aluminium foil circuit on the vibrating diaphragm, though play voice coil loudspeaker voice coil, and in fact, voice coil loudspeaker voice coil of the present utility model is formed at respectively on corrugated each gauffer limit, but not the form of genus conventional coil, so under whole frequency range scope, impedance is an even resistive approximately.Therefore, there is no coil presents impedance at high frequency and low frequency and does not produce mechanical resonant so that cause the bad phenomenon of peak impedance at low frequency in the lump.Thus, the utility model is except the stability that can improve the power expander and exempt the problem of expander overload, if when needs carry out the occasion of frequency division, can make that more the design of frequency divider is particularly simple and easy.
Another purpose of the present utility model is to provide a kind of symmetry to drive integral speakers, its voice coil loudspeaker voice coil is distributed on the roomy vibrating diaphragm, the effect of good heat radiating is provided, no conventional coil type voice coil loudspeaker voice coil accumulation of heat and fragile problem, so the loud speaker of the utility model can big electric current flow or the situation of instantaneous large-current under, all unlikely burning, and the characteristic of its wide range frequency response and constant impedance more can be lowered the problem of phase mutual interference and phase distortion between each frequency of loudspeaker of traditional multitone road.
A kind of symmetry according to the present invention drives integral speakers, and it comprises:
Permanent magnet is to provide enough magnetic field;
Forward and backward chase is separately positioned on two position of magnetic poles of permanent magnet, and the surface forms entrant sound grid hole, forms between each grid hole to constitute the equally distributed magnetic line of force of large tracts of land between two chases;
Vibrating diaphragm is suspended between two chases, and the surface is folded into " W " through forming some broken lines and reaches the staggered cross section of " M " shape kenel, vibrating diaphragm surface attachment thin layer voice coil loudspeaker voice coil;
Each gauffer of described vibrating diaphragm can be the motion of lateral symmetry convergent-divergent and produce air extrusion.
Above-mentioned symmetry drives in the integral speakers, and this permanent magnet can be arranged at the peripheral position or the middle position of loud speaker.
Above-mentioned symmetry drives in the integral speakers, and that this chase can form is plate, half-conical, taper shape, semi-circular, ultra-thin or cylindrical shape.
Above-mentioned symmetry drives in the integral speakers, and each gauffer zone of this vibrating diaphragm forms independently miniature pronunciation unit respectively.
Above-mentioned symmetry drives in the integral speakers, and each gauffer zone of this vibrating diaphragm can per three be an array, and each gauffer zone in each array is the same current flow direction, and adjacent array is the inverse current flow direction.
Above-mentioned symmetry drives in the integral speakers, and the rugae area of the middle position of this each array is more roomy, and the outside is narrower.
Above-mentioned symmetry drives in the integral speakers, and the middle position rugae area of this each array is to be folded into a vertical section perpendicular to magnetic field.
Above-mentioned symmetry drives in the integral speakers, and the voice coil loudspeaker voice coil of this vibrating diaphragm is made of Copper Foil.
Above-mentioned symmetry drives in the integral speakers, and the voice coil loudspeaker voice coil of this vibrating diaphragm is made of aluminium foil.
Above-mentioned symmetry drives in the integral speakers, and this voice coil loudspeaker voice coil is attached on the vibrating diaphragm by printing or adhesion system.
Above-mentioned symmetry drives in the integral speakers, and this vibrating diaphragm is made of cloth, paper or other lightweight high resistant materials.
Above-mentioned symmetry drives in the integral speakers, and the thickness of each gauffer of this vibrating diaphragm is arranged in 1.5 centimeters.
Above-mentioned symmetry drives in the integral speakers, and the gauffer quantity of this vibrating diaphragm can be selected between dozens of is to hundreds of according to actual size.
Above-mentioned symmetry drives in the integral speakers, and the configurable rubber of nearly outer end position of this vibrating diaphragm or other soft materials are as hanging skirt materials.
Above-mentioned symmetry drives in the integral speakers, and described " W " reach gauffer vibrating diaphragm that " M " be staggered when doing symmetrical convergent-divergent motion, only need change each gauffer movement angle, and need not produce the vibrating diaphragm modification with extruding or expansion generation sound press.
Above-mentioned symmetry drives in the integral speakers, and each end position setting of this vibrating diaphragm can prevent the supporter that leaks gas.
Above-mentioned symmetry drives in the integral speakers, and this supporter is a plastic material.
Above-mentioned symmetry drives in the integral speakers, and this supporter is a nonmagnetic substance.
Below with reference to drawings and Examples, structure, characteristics and other purposes that symmetry of the present utility model is driven integral speakers are described in further detail.
Fig. 1 and 2 is the structure and the generalized section of dynamic planar loudspeakers of the present utility model.
Fig. 3 and 4 is structure and generalized sections of half-conical loud speaker of the present utility model.
Fig. 5 and 6 is structure and generalized sections of 180 ° of semicircle loud speakers of the utility model.
Fig. 7 is the sectional perspective schematic diagram of the utility model chase and vibrating diaphragm.
Fig. 8 is a vibrating diaphragm plane outspread drawing of the present utility model.
Fig. 9 A to 9C is the action schematic diagram of the utility model vibrating diaphragm.
Figure number partly is expressed as follows:
10 permanent magnets, 20,30 chases
21, projection in the 31 grid holes 22,32
50,60 hang edge 70,80 supporters
90 plastics side covers
In fact loud speaker of the present utility model can be made into various different size and makes different types, below promptly with plane and semicircle is tapered and semi-circular illustrating.As shown in Figure 1, 2 shown in the planar configuration schematic diagram and profile of dynamic planar loudspeakers monomer, on four limits of monomer block permanent magnet 10 is set respectively, and the N of each permanent magnet 10, S magnetic pole are for forward, the rear to, and in the equidirectional same polarity that is, and cooperate shown in Figure 2, each permanent magnet 10 just, back position chase 20 and back chase 30 before then correspondence is combined with.The surface forms shown in Fig. 1 right half part outside each chase 20,30, forms a plurality of spaced horizontal entrant sound grid hole 21, then is formed with the interior projection 22,32 (as shown in Figure 7) of inwards extending in each 21 in adjacent entrant sound grid hole.As previously mentioned, this forward and backward chase 20,30 through be positioned at around permanent magnet 10 mutually near after combining, two magnetic poles of permanent magnet 10 are conducted on forward and backward chase 20 positions, and make each projection 22,32 of respectively organizing the inner face extension of this forward and backward chase 20,30 shown in Figure 7 all form N and S magnetic pole, aforementioned four group permanent-magnets 10 that are provided with are mainly magnetic force that forward and backward chase 20, the last 30 are provided and form preferable high magnetic flux density between the projection 22,32 in each of two chases, with the required the action of a magnetic field power of supply loud speaker.
And the zone between this forward and backward chase 20,30 and four group permanent-magnets 10, setting is made the vibration film 40 of plane by cloth, paper or other suitable light materials, through being folded into the staggered section pattern that constitutes of a plurality of as shown in Figure 2 W shapes and a plurality of M shape continuously.And the near upper and lower ora terminalis place of whole vibrating diaphragm 40 hangs edge 50,60 and makes it to be suspension status by making as glue or other flexible materials.Vibrating diaphragm 40 both sides and top and bottom ends are then fixed by the supporter made from plastic cement or other unmagnetized materials 70, and prevent to take place when vibrating diaphragm from moving gas leak phenomenon.Distance generally was set in 1.5 centimeters with interior (being no more than the wavelength of 20KHz frequency), to avoid the high frequency distortion problem between in addition aforementioned vibrating diaphragm 40 folded.And gauffer quantity that should be folding can be according to the size of loud speaker by dozens of extend to hundreds of all can, and need according to design on the practice and decide.
And these vibrating diaphragm 40 surfaces can form thin copper foil or aluminium foil by printing or adhesion system, so-called to constitute " voice coil loudspeaker voice coil ", and the pattern of this voice coil loudspeaker voice coil can be in conjunction with referring to shown in the vibrating diaphragm 40 local expanded views of Fig. 8.The zone and the loop of Copper Foil or aluminium foil represented at dark position in the drawing, and form a vibrating diaphragm array (ARRAY) with per three gauffers zone, and between among each vibrating diaphragm array the main gauffer of the big width of position for being folded into the vertical configuration shown in the profile, and both sides are the auxiliary gauffer of less width, and the thin copper foil of respectively organizing gauffer or the aluminium foil of each vibrating diaphragm array are made as the same current direction through the loop design, and with the adjacent vibrating diaphragm array configuration relation that is opposite current flow direction, and formed three current paths of Fig. 8 can be at front ends or are directly connected and drive with same signal source.
Through being folded to form shown in Fig. 9 A after the mode along each position of broken line with Fig. 8, aforementioned each vibrating diaphragm array is for being defined in the middle position that " M " reaches " W ", and the vertical position of each vibrating diaphragm array is under the situation of aforementioned main gauffer, when adding on the vibrating diaphragm 40 that forward is sinusoidal wave shown in Fig. 9 B right side, even the vertical position circulating current corresponding to the two adjacent vibrating diaphragm arrays in " W " shape zone is opposite, and be subjected to two chases 20 as Fig. 7,30 the action of a magnetic fields, because of stepless action power presents approaching effect mutually, so, can produce the effect of extruding up to air, and shown in Fig. 9 C, when sending into the negative sense sine wave, on the contrary, two vertical positions corresponding to " W " are drawn back for being mutually, and form the effect that sucks air down, so, promptly by the lateral symmetry displacement of vibrating diaphragm 40 each " W " shape area zoom, reaching the conversion electric wave is the transducing effect of sound wave.
Explanation as can be known as described above, each organizes the coil generation displacement effect that the vibrating diaphragm array is mainly the main gauffer position of its vertical section of utilization, only belong to secondary purpose and be positioned at these vertical section both sides, and on the practice, also the loop of the auxiliary gauffer in both sides can be removed, also can reach the effect of lateral displacement, and after being somebody's turn to do the loop adding of assisting on the gauffer, have the effect that improves conversion efficiency and improve dynamic driving power.
When making the loud speaker of half-conical pattern, shown in Fig. 3,4, the relative configurations of its combination is all roughly the same, and difference is that permanent magnet 10 is that a great circle bulk is arranged on middle position, be same as the effect of aforementioned most fritter shape permanent magnets with formation, the entrant sound grid hole 21 and the vibrating diaphragm 40 of forward and backward chase 20,30 are then changed into fan-shaped and annular array, and watch with the profile of Fig. 4, then provide than better directional property of dynamic planar loudspeakers and preferable sound equipment dispersion effect
Fig. 5, Figure 6 shows that an angle of scattering can widely reach 180 ° semi-circular loudspeaker design example, its essential structure as hereinbefore, other has increased the acoustic short circuit phenomenon of plastic side covering plate structure 90 with sound press before and after preventing; If two semi-circular unit with combination dorsad, more can be constituted a wideband that reaches 360 ° of non-directional angle of scatterings, the low distortion unit.So aforementioned plane, half-conical, in fact the semi-circular loud speaker that waits can design various enforcement moulding and size dimension according to need only for for example.
By aforementioned know find out, because in fact each group pattern of vibrating diaphragm of the present utility model forms a kind of integral speakers of forming with quite a lot of Microspeaker, and the light weight of each array, more form a kind of push-pull type symmetry between the adjacent array and drive kenel, outstanding tool high power, good transient response and can be up to the wide range frequency response characteristic of 20KHz high frequency and the following low frequency of 100Hz, and more a kind of uniform magnetic field inside that is configured in of vibrating diaphragm of the present utility model, more can reach the characteristic of linear operation and low distortion, and the voice coil loudspeaker voice coil of its non-coil pattern structure more has the good heat radiating ability and present the impedance operator of nonreactive, has more using value and be easy to the advantage of design on practice.
Claims (18)
1. a symmetry drives integral speakers, it is characterized in that comprising:
Permanent magnet is to provide enough magnetic field;
Forward and backward chase is separately positioned on two position of magnetic poles of permanent magnet, and the surface forms entrant sound grid hole, forms between each grid hole to constitute the equally distributed magnetic line of force of large tracts of land between two chases;
Vibrating diaphragm is suspended between two chases, and the surface is folded into " W " through forming some broken lines and reaches the staggered cross section of " M " shape kenel, vibrating diaphragm surface attachment thin layer voice coil loudspeaker voice coil;
Each gauffer of described vibrating diaphragm can be the motion of lateral symmetry convergent-divergent and produce air extrusion.
2. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that this permanent magnet can be arranged at the peripheral position or the middle position of loud speaker.
3. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that this chase can form plate, half-conical, taper shape, semi-circular, ultra-thin or cylindrical shape.
4. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that each gauffer zone of this vibrating diaphragm forms independently miniature pronunciation unit respectively.
5. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that each gauffer zone of this vibrating diaphragm can per three be an array, and each gauffer zone in each array flows to for same current, and adjacent array is the inverse current flow direction.
6. symmetry as claimed in claim 5 drives integral speakers, it is characterized in that the rugae area of middle position of this each array is more roomy, and the outside is narrower.
7. symmetry as claimed in claim 5 drives integral speakers, and the middle position rugae area that it is characterized in that this each array is to be folded into a vertical section perpendicular to magnetic field.
8. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that the voice coil loudspeaker voice coil of this vibrating diaphragm is made of Copper Foil.
9. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that the voice coil loudspeaker voice coil of this vibrating diaphragm is made of aluminium foil.
10. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that this voice coil loudspeaker voice coil is attached on the vibrating diaphragm by printing or adhesion system.
11. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that this vibrating diaphragm is made of cloth, paper or other lightweight high resistant materials.
12. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that the thickness of each gauffer of this vibrating diaphragm is arranged in 1.5 centimeters.
13. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that the gauffer quantity of this vibrating diaphragm can be selected between dozens of is to hundreds of according to actual size.
14. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that the configurable rubber of near outer end position of this vibrating diaphragm or other soft materials are as the suspension skirt materials.
15. symmetry as claimed in claim 1 drives integral speakers, it is characterized in that described " W " reaches gauffer vibrating diaphragm that " M " be staggered when doing symmetrical convergent-divergent motion, only need change each gauffer movement angle, not produce sound press with extruding or expansion and need not produce the vibrating diaphragm modification.
16. symmetry as claimed in claim 1 drives integral speakers, each the end position setting that it is characterized in that this vibrating diaphragm can prevent the supporter that leaks gas.
17. symmetry as claimed in claim 16 drives integral speakers, it is characterized in that this supporter is a plastic material.
18. symmetry as claimed in claim 16 drives integral speakers, it is characterized in that this supporter can be nonmagnetic substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97214738 CN2312549Y (en) | 1997-05-28 | 1997-05-28 | Symmetric driven integrated loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97214738 CN2312549Y (en) | 1997-05-28 | 1997-05-28 | Symmetric driven integrated loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2312549Y true CN2312549Y (en) | 1999-03-31 |
Family
ID=33932089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97214738 Expired - Fee Related CN2312549Y (en) | 1997-05-28 | 1997-05-28 | Symmetric driven integrated loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2312549Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860781A (en) * | 2009-04-07 | 2010-10-13 | 国立中兴大学 | Acoustic-electro conversion chip of silk-ribbon microphone |
| CN101682817B (en) * | 2007-05-31 | 2014-09-10 | 伯斯有限公司 | Diaphragm surround |
| CN106612483A (en) * | 2015-10-27 | 2017-05-03 | 张侠辅 | Fluttering-type loudspeaker |
| CN107040854A (en) * | 2017-04-28 | 2017-08-11 | 北京欧意智能科技有限公司 | Annular omnidirectional loudspeaker and audio amplifier |
-
1997
- 1997-05-28 CN CN 97214738 patent/CN2312549Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101682817B (en) * | 2007-05-31 | 2014-09-10 | 伯斯有限公司 | Diaphragm surround |
| CN101860781A (en) * | 2009-04-07 | 2010-10-13 | 国立中兴大学 | Acoustic-electro conversion chip of silk-ribbon microphone |
| CN101860781B (en) * | 2009-04-07 | 2013-06-12 | 国立中兴大学 | Acoustic-electro conversion chip of silk-ribbon microphone |
| CN106612483A (en) * | 2015-10-27 | 2017-05-03 | 张侠辅 | Fluttering-type loudspeaker |
| CN107040854A (en) * | 2017-04-28 | 2017-08-11 | 北京欧意智能科技有限公司 | Annular omnidirectional loudspeaker and audio amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI JIEDI FURNITURE DECORATION CO., LTD. Free format text: FORMER NAME OR ADDRESS: JIEDI TRADE CO., LTD., SHANGHAI |
|
| CP03 | Change of name, title or address |
Address after: 201824 Shanghai city Jiading District really new streets Caoan Road No. 7 bridge southwest Patentee after: Shanghai Jie Di furniture decoration Co., Ltd. Address before: Star South Road Shanghai city Zhu Jinshan County 201500 No. 1 Patentee before: Jiedi Trade Co., Ltd., Shanghai |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |