CN1237871A - String-vibrating type loudspeaker - Google Patents
String-vibrating type loudspeaker Download PDFInfo
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- CN1237871A CN1237871A CN 99114783 CN99114783A CN1237871A CN 1237871 A CN1237871 A CN 1237871A CN 99114783 CN99114783 CN 99114783 CN 99114783 A CN99114783 A CN 99114783A CN 1237871 A CN1237871 A CN 1237871A
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- vibrating diaphragm
- magnet steel
- loud speaker
- magnetic gap
- magnetic
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Abstract
The string-vibrating type loudspeaker is formed from flexible strip vibrating diaphragm and magnetic steel. It is characterized by that the flexible strip vibrating diaphragm is placed in the magnetic gap between magnetic steels, then the vibrating diaphragm is vibrated according to the mode of string vibration so as to drive air to produce sound, and can make amplitude of the vibrating diaphragm large, and can fully and effectively utilize two-side sound wave of the vibrating diaphragm, specially utilize the feedback of inside sound wave of vibrating diaphragm in the loudspeaker box to raise bass to make it become whole-diapason loudspeaker, so that it basically solves the distortion resulted from deformation of vibrating diaphragm, and can make sound wave be transmitted in the mode of plane wave so as to effectively raise tone quality and volume, and raise the comprehensive performance of loudspeaker.
Description
The invention provides the banded vibrating membrane loudspeaker of a kind of flexibility, particularly a kind of loud speaker that makes this band shape vibrating diaphragm vibrate (similar string mode of vibration) by mechanical elasticity deformation mode.
Existing dynamic speaker, its voice coil loudspeaker voice coil and vibrating diaphragm separate separately, the vibrating diaphragm shape has taper, ball top shape, planar shaped or the like, vibrating diaphragm is positioned at voice coil loudspeaker voice coil top, vibrating diaphragm is promoted to do the piston type vibration by voice coil loudspeaker voice coil during work, thereby promote the air vibration sounding, this mode of vibration very easily makes the vibrating diaphragm distortion, thereby makes the audio distortions that sends.Chinese patent ZL94249167.X discloses a kind of flexible vibrating membrane loudspeaker, and this loud speaker adopts flexible vibrating diaphragm, and it is located in the groove of cylindricality magnet steel, and vibrating diaphragm vibrates with the variation of tone currents during work, thereby promotes the air sounding.Though this loud speaker has fundamentally solved the problem of vibrating diaphragm distortion, but because employing is magnet steel combination cylinder, make magnetic circuit be in the open circuit form on the whole, promptly go up and be the N level, be down the S level, the magnetic line of force need could form the loop by the space, can not improve magnetic field intensity, can cause magnetic influence to electrical equipment on every side again, the drawback of also bringing the loud speaker volume to increase; In addition owing to be provided with the copper ring barriers of diameter between the magnet steel less than magnet steel, make flexible vibrating diaphragm can only place this barriers periphery, the air seal that for a moment causes the vibrating diaphragm inboard is between copper ring and vibrating diaphragm, acoustic capacitance (being air elasticity) is obstructed, the positive-negative half-cycle amplitude is asymmetric, the vibrating diaphragm amplitude can not increase, and two can make the inboard sound wave that produces of vibrating diaphragm utilize, thereby influence the raising of tonequality and the expansion of range.In sum, all there are many deficiencies in existing all kinds of loud speaker.
The objective of the invention is to overcome the deficiency of prior art, provide a kind of amplitude big, tonequality is good, and range is wide, distortionless loud speaker.
The present invention adopts flexible banded vibrating diaphragm, and this vibrating diaphragm both had been electrical current carriers (being voice coil loudspeaker voice coil), is the vibrating diaphragm that promotes the air vibration sounding again, thereby voice coil loudspeaker voice coil and vibrating diaphragm organically are integrated.
The concrete scheme of the present invention is: it is made of banded vibrating diaphragm of flexibility and magnet steel, it is characterized in that flexible banded vibrating diaphragm places in the magnetic gap between the magnet steel.Described magnet steel is a closed magnetic circuit body, and this closed magnetic circuit body is made of the polylith magnet steel, and it is shaped as annular, and is perhaps square, perhaps other shape; The magnetic gap that forms between the magnet steel is a space, the shape in this space and magnet steel shape adapt, so that the flexible banded vibrating diaphragm that is provided with in this space is vibrated with the string mode of vibration, thereby obtain the vibration of peak swing, the sound wave of vibrating diaphragm both sides is fully effectively utilized, eliminated drawbacks such as acoustic capacitance is obstructed, the positive-negative half-cycle amplitude is asymmetric; Two ends at magnetic gap are provided with strutting piece, are used to intercept the adhesive of two magnet steel; Magnet steel be shaped as strip, perhaps ring-type, perhaps other shape, the magnetic gap that forms between the magnet steel is shaped as strip, perhaps ring-type, the width of perhaps other shape, and magnetic gap is advisable with the width less than magnet steel.Flexible banded vibrating diaphragm is fixed on strip magnetic gap upper and lower side with bar form, makes the mid portion of vibrating diaphragm unsettled, and fill with magnetic liquid in the gap between vibrating diaphragm two edges and the magnet steel surface; Flexible banded vibrating diaphragm also can annular form be placed in the annular magnetic gap, and fills with magnetic liquid, and when passing to tone currents, vibrating diaphragm vibrates with the string mode of vibration under the action of a magnetic field, and promotes the air sounding.The vibrating diaphragm of overhanging portion or annulus is a waveform, is used to increase the length and the area of vibrating diaphragm, helps improving motive force's harmony amount of radiation of tone currents, reduces distortion.
The present invention compared with prior art has following advantage and good effect: because the present invention adopts magnet steel closed magnetic circuit body, and the flexible banded vibrating diaphragm with the vibration of string mode of vibration is set in the magnetic gap of this closed magnetic circuit body, thereby make the vibrating diaphragm Oscillation Amplitude big, the sound wave of vibrating diaphragm both sides can both fully effectively utilize, especially utilize the feedback of the inboard sound wave of vibrating diaphragm in audio amplifier, promote bass, make it to become full-range speaker.Because the special mode of vibration of vibrating diaphragm has fundamentally solved the distortion that the vibrating diaphragm distortion brings, sound wave energy is launched in the mode of plane wave in addition, effectively improved the tonequality volume.The closed magnetic circuit body has been got rid of magnetic field to the influence of other electrical equipment on every side, and has strengthened the magnetic field intensity of magnetic gap, improves the combination property of loud speaker.
Fig. 1 is the present invention's closed magnetic circuit body structure figure;
Fig. 2 is the present invention's magnet steel structure chart;
Fig. 3 is the present invention's vibrating diaphragm bar shaped scheme of installation;
Fig. 4 is another closed magnetic circuit body structure figure of the present invention;
Fig. 5 is the present invention's supporting piece structure figure;
Fig. 6, Fig. 7 are the present invention's vibrating diaphragm annular scheme of installation.
Embodiment 1
As Fig. 1, Fig. 2, Fig. 3,1 is the magnet steel bar, 2 is magnetic gap, be the space bar shaped, 3 is strutting piece, is located at the upper and lower side of magnetic gap 2 respectively, 4 is copper billet, be separately fixed at the two ends of magnet steel bar, make it to form magnet steel integral body, can constitute loud speaker separately after establishing flexible vibrating diaphragm in this magnet steel integral body, this magnet steel is whole to constitute annular closed magnetic circuit body 6 with arc iron block 5,7 is flexible banded vibrating diaphragm, and waveform vibrating diaphragm 8 places magnetic gap, and fill with magnetic liquid in the gap between its two edges and the magnet steel, the smooth part 9 of belt sticks on the magnet steel surface, make that whole piece is coherent to be through in the magnetic gap and the magnet steel surface, and form a complete current circuit, this part belt on magnet steel surface does not participate in vibration, only play conduction current, waveform belt in the magnetic gap is vibrating diaphragm, and this vibrating diaphragm vibrates in the string mode during work, and promotes the air sounding.
As Fig. 4, Fig. 5, Fig. 6, Fig. 7,10 is annular magnetic steel, 11 is the ring-type magnetic gap between annular magnetic steel, 12 is the cross bracing frame, places the ring-type magnetic gap, thereby constitutes the magnet steel body, this magnet steel body and iron bend pipe 13 constitute annular closed magnetic circuit body 14, annulus waveform vibrating diaphragm 15 is placed in the ring-type magnetic gap 11, and fills with magnetic liquid, and all the other belts are fixed on the magnet steel surface.Annular wave vibrating diaphragm vibrates with the string mode of vibration during work, thereby promotes the air sounding.
Have a kind of more careful method to make the vibrating diaphragm of this loud speaker, promptly the single layer coil with a softness makes, and is used to replace flexible band.These coils are with the very little enamelled wire coiled in line footpath, and they are soft, thin, and have only one deck.Their width should be the width that is slightly smaller than magnetic gap, be coated with one deck glue on the surface of coil, coil looks like the closed loop that a strap makes like this, for annular gap, whole winding all is used as vibrating diaphragm, and the diameter of coil is corresponding with the magnetic gap diameter, and the every part of coil is all made waviness, and entirely put into magnetic gap, fill with magnetic liquid in the gap between coil edge and the magnet steel surface.With all coils and connect or be chained together, be connected with two lead-in wires of loud speaker again.For band shape crack, the coil girth should be three times of magnetic gap length.The part of coil is made the belt of being with waveform fold, and this part is used as vibrating diaphragm, and puts into magnetic gap.Part in addition is placed on outside the magnetic gap, and is bonded on the magnetic inner surface, and this part is only used as conduction current.At last, also must insert magnetic liquid, and with all coils and connect or be chained together.
Claims (10)
1, a kind of string-vibrating type loudspeaker is made of banded vibrating diaphragm of flexibility and magnet steel, it is characterized in that flexible banded vibrating diaphragm places in the magnetic gap between the magnet steel.
2, loud speaker according to claim 1 is characterized in that described magnet steel is a closed magnetic circuit body, and this closed magnetic circuit body is made of the polylith magnet steel, and it is shaped as annular, and is perhaps square, perhaps other shape.
3, loud speaker according to claim 1 and 2 is characterized in that the magnetic gap that forms between the magnet steel is a space, and the shape in this space and magnet steel shape adapt.
4, loud speaker according to claim 1 and 2 is characterized in that being provided with strutting piece at the two ends of magnetic gap.
5, loud speaker according to claim 2 is characterized in that the strip that is shaped as of magnet steel, perhaps ring-type, perhaps other shape.
6, loud speaker according to claim 3 is characterized in that the magnetic gap that forms between the magnet steel is shaped as strip, perhaps ring-type, and the width of perhaps other shape, and magnetic gap is advisable with the width less than magnet steel.
7, loud speaker according to claim 1 is characterized in that flexible banded vibrating diaphragm is fixed on strip magnetic gap upper and lower side with bar form, and the mid portion of its vibrating diaphragm is a hanging shape, and fill with magnetic liquid in the space between vibrating diaphragm two edges and the magnet steel surface.
8, loud speaker according to claim 1 is characterized in that flexible banded vibrating diaphragm is placed in the annular magnetic gap with annular form, and fills with magnetic liquid.
9, according to claim 7 or 8 described loud speakers, the vibrating diaphragm that it is characterized in that overhanging portion or annulus is a wave-like.
10, loud speaker according to claim 1 is characterized in that vibrating diaphragm can be replaced flexible band by the single layer coil of a softness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99114783 CN1237871A (en) | 1998-04-24 | 1999-04-08 | String-vibrating type loudspeaker |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98108102.9 | 1998-04-24 | ||
| CN98108102 | 1998-04-24 | ||
| CN 99114783 CN1237871A (en) | 1998-04-24 | 1999-04-08 | String-vibrating type loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1237871A true CN1237871A (en) | 1999-12-08 |
Family
ID=25744649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99114783 Pending CN1237871A (en) | 1998-04-24 | 1999-04-08 | String-vibrating type loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1237871A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740199A (en) * | 2011-04-06 | 2012-10-17 | 张丽娜 | Flat plate string vibration loudspeaker |
| 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 |
| CN107529118A (en) * | 2016-10-15 | 2017-12-29 | 张侠辅 | The improvement of string-vibrating type loudspeaker |
| CN109451407A (en) * | 2018-12-17 | 2019-03-08 | 星际控股集团有限公司 | A kind of foot prop type loudspeaker |
-
1999
- 1999-04-08 CN CN 99114783 patent/CN1237871A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102740199A (en) * | 2011-04-06 | 2012-10-17 | 张丽娜 | Flat plate string vibration loudspeaker |
| CN106612483A (en) * | 2015-10-27 | 2017-05-03 | 张侠辅 | Fluttering-type loudspeaker |
| CN107529118A (en) * | 2016-10-15 | 2017-12-29 | 张侠辅 | The improvement of string-vibrating 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 |
| CN109451407A (en) * | 2018-12-17 | 2019-03-08 | 星际控股集团有限公司 | A kind of foot prop type loudspeaker |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |