CN102395089A - Manufacturing method of magnetic drive type loudspeaker and magnetic drive type loudspeaker - Google Patents
Manufacturing method of magnetic drive type loudspeaker and magnetic drive type loudspeaker Download PDFInfo
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- CN102395089A CN102395089A CN2011102532358A CN201110253235A CN102395089A CN 102395089 A CN102395089 A CN 102395089A CN 2011102532358 A CN2011102532358 A CN 2011102532358A CN 201110253235 A CN201110253235 A CN 201110253235A CN 102395089 A CN102395089 A CN 102395089A
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- vibrating body
- magnetic drive
- drive unit
- loud speaker
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Abstract
The invention discloses a manufacturing method of a magnetic drive type loudspeaker, which comprises the following steps: (1) manufacturing a magnetic vibrating body of which the periphery is vertically connected to a wall surface of a cavity through a damping device; (2) manufacturing a plurality of magnetic drive devices which are connected with voice frequency current to generate an alternating magnetic field; (3) uniformly arranging the magnetic drive devices at intervals at one side of the vibrating body and making the vibrating body within the range of the alternating magnetic field of the magnetic drive devices; and (4) operating the magnetic drive devices, continuously switching magnetic poles of the magnetic drive devices close to one end of the vibrating body, and driving the magnetic vibrating body to vibrate horizontally under the effect of the alternating magnetic field of the magnetic drive devices so as to generate plane waves without phase difference within the voice frequency range. Sound sent by the resonance between the plane waves and the air can reproduce the original source livingly with small distortion. The invention also discloses a magnetic drive type loudspeaker.
Description
Technical field
The present invention relates to loud speaker, particularly a kind of manufacturing approach of magnetic drive-type loud speaker and a kind of is implemented the magnetic drive-type loud speaker that this method makes.
Background technology
In the modern society, stereo set is widely used.And loud speaker is a device the weakest in stereo set, and for acoustics, it is again most important parts.Loud speaker of a great variety, and price differs greatly.Tone currents makes its vibrating body vibration through electromagnetism, piezoelectricity or electrostatic effect, thereby resonates (sympathetic response) and sound with the ambient air generation.
Loud speaker is divided into electrodynamic type, electrostatic, crystal or ceramic-type, compressed spring type, the gentle dynamic formula loud speaker of ionization minor etc. by its design feature, and dynamic speaker has that electroacoustic performance is good, sound construction, low cost and other advantages, is widely used.Fig. 1 is a kind of structural representation of dynamic speaker, and visible by Fig. 1, dynamic speaker comprises that one is provided with the base 12 of iron core 11; On this base 12, be fixed with the magnet 13 of a band centre bore, this iron core 11 places this centre bore, and the top of this magnet 13 is provided with an iron plate 14; Be arranged with a coil 15 on the said iron core 11 movably; The end of this coil 15 is connected with a vibrating body 17 through a skeleton 16, and the centre position of this vibrating body 17 is connected on this skeleton 16, and the periphery of this vibrating body 17 is fixed through spring or other modes; When coil 15 accessing to audio electric currents; Produce alternating magnetic field on the coil 15, the magnetic pole at coil 15 two ends does not stop conversion, under the magneticaction of magnet 13; Coil 15 is sounded thereby make vibrating body 17 produce vibration wave and produce resonance with air along with the input of tone currents does not stop to move reciprocatingly.But because just the centre position of this vibrating body 17 is provided with a vibration source, thereby can cause the distortion level of sound bigger, be difficult to original acoustic fidelity ground reduction.
Summary of the invention
The objective of the invention is to, a kind of manufacturing approach of magnetic drive-type loud speaker is provided, through the enforcement of this method; Can produce a kind of magnetic drive-type loud speaker; This magnetic drive-type loud speaker is provided with several this drive units, can make this vibrating body plane vibration, produces plane wave; Thereby can be with original acoustic fidelity ground reduction, distortion is little.
The present invention also provides a kind of prepared magnetic drive-type of manufacturing approach loud speaker of implementing said magnetic drive-type loud speaker.
The present invention for realizing the technical scheme that above-mentioned purpose adopted is:
A kind of manufacturing approach of magnetic drive-type loud speaker, it may further comprise the steps:
(1) manufacturing one has the vibrating body of magnetic, and the periphery of this vibrating body is vertically connected on the wall of a die cavity through damping device;
(2) make some vibrative magnetic drive units of this magnetic vibrating body that are used to order about, this magnetic drive unit accessing to audio electric current produces alternating magnetic field, thereby the port of this magnetic drive unit is changed with variation not stall between the S utmost point and the N utmost point of alternating magnetic field;
(3) said plurality of magnetic drive unit evenly is arranged at a side of this vibrating body by spacing distance and this vibrating body is within the scope of alternating magnetic field of this magnetic drive unit, its alternative frequency of the alternating magnetic field of these several magnetic drive units is identical;
(4) said plurality of magnetic drive unit work; This plurality of magnetic drive unit changes near the not stall of magnetic pole of vibrating body one end; When this magnetic drive unit is identical with magnetic magnetic pole on the vibrating body near the magnetic pole of vibrating body one end; Because the same sex is repelled each other, the periphery of this vibrating body is connected on the wall of die cavity by damping device, thereby this vibrating body is promoted sidesway outward by magnetic force; When this magnetic drive unit was opposite with the magnetic magnetic pole on the vibrating body near the magnetic pole of vibrating body one end, because there is a natural attraction between the sexes, thereby this vibrating body was by the past interior sidesway of magnetic force pulling;
(5) because said some these drive units evenly are arranged at a side of this vibrating body by spacing distance; Under the effect of the alternating magnetic field of this plurality of magnetic drive unit; Order about this magnetic vibrating body and carry out plane vibration; Thereby in audiorange, produce the plane wave that does not have phase difference, the sound that is sent that resonates between this plane wave and the air can reappear original acoustic fidelity ground, and distortion is little.
As further improvement of the present invention, said magnetic drive unit comprises an iron core and a coil, and said coil is wound on this iron core, and this coil is communicated with tone currents, and this magnetic drive unit is fixedly set in a side of this vibrating body, vertical this vibrating body of this iron core.
As further improvement of the present invention, said vibrating body is circular, is provided with magnetic in this vibrating body towards the side of said magnetic drive unit.
A kind of prepared magnetic drive-type of manufacturing approach loud speaker that drives loud speaker according to aforementioned magnetic; It comprises that one has the vibrating body of magnetic and is used to order about the vibrative magnetic drive unit of this magnetic vibrating body; The periphery of this vibrating body is vertically connected on the wall of a die cavity through damping device; Said plurality of magnetic drive unit evenly is arranged at a side of this vibrating body by spacing distance; This magnetic drive unit accessing to audio electric current produces alternating magnetic field, thereby the port of this magnetic drive unit is changed with variation not stall between the S utmost point and the N utmost point of alternating magnetic field, and this vibrating body is within the scope of alternating magnetic field of this magnetic drive unit.
As further improvement of the present invention, said magnetic drive unit comprises an iron core and a coil, and said coil is wound on this iron core, and this coil is communicated with tone currents, and this magnetic drive unit is fixedly set in a side of this vibrating body, vertical this vibrating body of this iron core.
As further improvement of the present invention, said vibrating body is circular, is provided with magnetic in this vibrating body towards the side of said magnetic drive unit.
As further improvement of the present invention, its alternative frequency of the alternating magnetic field of said several magnetic drive units is identical.
Magnetic drive-type loud speaker of the present invention is a full frequency speaker.
Beneficial effect of the present invention is: the inventive method is implemented easily; This magnetic drive-type loadspeaker structure is simple; Design ingenious, through with this vibrating body through damping device connect with the die cavity wall on, by spacing distance several magnetic drive units are set evenly in a side of this vibrating body; Thereby can make this vibrating body carry out plane vibration; In audiorange, produce the plane wave that does not have phase difference, the sound that is sent that resonates between this plane wave and the air can reappear original acoustic fidelity ground, and distortion is little.
Below in conjunction with accompanying drawing and embodiment, the present invention is further specified.
Description of drawings
Fig. 1 is the structural representation of prior electric formula loud speaker;
Fig. 2 is a structural representation of the present invention.
Embodiment
Embodiment: see Fig. 2, the manufacturing approach of a kind of magnetic drive-type of the present invention loud speaker, it may further comprise the steps:
(1) manufacturing one has the vibrating body 17 of magnetic, and the periphery of this vibrating body 17 is vertically connected on the wall of a die cavity 19 through damping device 18;
(2) make some this magnetic vibrating body 17 vibrative magnetic drive units 2 that are used to order about; These magnetic drive unit 2 accessing to audio electric currents produce alternating magnetic field, thereby the port of this magnetic drive unit 2 is changed with variation not stall between the S utmost point and the N utmost point of alternating magnetic field;
(3) said plurality of magnetic drive unit 2 evenly is arranged at a side of this vibrating body 17 by spacing distance and this vibrating body 17 is within the scope of alternating magnetic field of this magnetic drive unit 2, its alternative frequency of the alternating magnetic field of these several magnetic drive units 2 is identical;
(4) said plurality of magnetic drive unit 2 work; This plurality of magnetic drive unit 2 changes near the not stall of magnetic pole of vibrating body 17 1 ends; When this magnetic drive unit 2 is identical with magnetic magnetic pole on the vibrating body 17 near the magnetic pole of vibrating body 17 1 ends; Because the same sex is repelled each other, the periphery of this vibrating body 17 is connected on the wall of die cavity 19 by damping device 18, thereby this vibrating body 17 is promoted sidesway outward by magnetic force; When this magnetic drive unit 2 is opposite with the magnetic magnetic pole on the vibrating body 17 near the magnetic pole of vibrating body 17 1 ends because there is a natural attraction between the sexes, thereby this vibrating body 17 by the magnetic force pulling toward interior sidesway;
(5) because said some these drive units evenly are arranged at a side of this vibrating body 17 by spacing distance; Under the effect of the alternating magnetic field of this plurality of magnetic drive unit 2; Order about this magnetic vibrating body 17 and carry out plane vibration; Thereby in audiorange, produce the plane wave that does not have phase difference, the sound that is sent that resonates between this plane wave and the air can reappear original acoustic fidelity ground, and distortion is little.
Said magnetic drive unit 2 comprises an iron core 11 and a coil 15, and said coil 15 is wound on this iron core 11, and this coil 15 is communicated with tone currents, and this magnetic drive unit 2 is fixedly set in a side of this vibrating body 17, these iron core 11 vertical these vibrating bodies 17.
Said vibrating body 17 is circular, is provided with magnetic in this vibrating body 17 towards the side of said magnetic drive unit 2.
A kind of prepared magnetic drive-type of manufacturing approach loud speaker that drives loud speaker according to aforementioned magnetic; It comprises that one has the vibrating body 17 of magnetic and is used to order about this magnetic vibrating body 17 vibrative magnetic drive units 2; The periphery of this vibrating body 17 is vertically connected on the wall of a die cavity 19 through damping device 18; Said plurality of magnetic drive unit 2 evenly is arranged at a side of this vibrating body 17 by spacing distance; This magnetic drive unit 2 accessing to audio electric currents produce alternating magnetic field, thereby the port of this magnetic drive unit 2 is changed with variation not stall between the S utmost point and the N utmost point of alternating magnetic field, and this vibrating body 17 is within the scope of alternating magnetic field of this magnetic drive unit 2.
Said magnetic drive unit 2 comprises an iron core 11 and a coil 15, and said coil 15 is wound on this iron core 11, and this coil 15 is communicated with tone currents, and this magnetic drive unit 2 is fixedly set in a side of this vibrating body 17, these iron core 11 vertical these vibrating bodies 17.
Said vibrating body 17 is circular, is provided with magnetic in this vibrating body 17 towards the side of said magnetic drive unit 2.
Its alternative frequency of the alternating magnetic field of said several magnetic drive units 2 is identical.
The inventive method is implemented easily, and this magnetic drive-type loadspeaker structure is simple, designs ingenious; Through this vibrating body 17 is passed through on damping device 18 connections and die cavity 19 walls; Side at this vibrating body 17 evenly is provided with several magnetic drive units 2 by spacing distance, thereby can make this vibrating body 17 carry out plane vibration, in audiorange, produces the plane wave that does not have phase difference; The sound that is sent that resonates between this plane wave and the air can reappear original acoustic fidelity ground, and distortion is little.
Of the embodiment of the invention, with the manufacturing approach and the magnetic drive-type loud speaker of other magnetic drive-type loud speakers of the same or similar structure of the present invention, all in protection range of the present invention.
Claims (7)
1. the manufacturing approach of a magnetic drive-type loud speaker, it is characterized in that: it may further comprise the steps:
(1) manufacturing one has the vibrating body of magnetic, and the periphery of this vibrating body is vertically connected on the wall of a die cavity through damping device;
(2) make some vibrative magnetic drive units of this magnetic vibrating body that are used to order about, this magnetic drive unit accessing to audio electric current produces alternating magnetic field, thereby the port of this magnetic drive unit is changed with variation not stall between the S utmost point and the N utmost point of alternating magnetic field;
(3) said plurality of magnetic drive unit evenly is arranged at a side of this vibrating body by spacing distance and this vibrating body is within the scope of alternating magnetic field of this magnetic drive unit, its alternative frequency of the alternating magnetic field of these several magnetic drive units is identical;
(4) said plurality of magnetic drive unit work; This plurality of magnetic drive unit changes near the not stall of magnetic pole of vibrating body one end; When this magnetic drive unit is identical with magnetic magnetic pole on the vibrating body near the magnetic pole of vibrating body one end; Because the same sex is repelled each other, the periphery of this vibrating body is connected on the wall of die cavity by damping device, thereby this vibrating body is promoted sidesway outward by magnetic force; When this magnetic drive unit was opposite with the magnetic magnetic pole on the vibrating body near the magnetic pole of vibrating body one end, because there is a natural attraction between the sexes, thereby this vibrating body was by the past interior sidesway of magnetic force pulling;
(5) because said some these drive units evenly are arranged at a side of this vibrating body by spacing distance; Under the effect of the alternating magnetic field of this plurality of magnetic drive unit; Order about this magnetic vibrating body and carry out plane vibration; Thereby in audiorange, produce the plane wave that does not have phase difference, the sound that is sent that resonates between this plane wave and the air can reappear original acoustic fidelity ground, and distortion is little.
2. the manufacturing approach of magnetic drive-type loud speaker according to claim 1; It is characterized in that; Said magnetic drive unit comprises an iron core and a coil, and said coil is wound on this iron core, and this coil is communicated with tone currents; This magnetic drive unit is fixedly set in a side of this vibrating body, vertical this vibrating body of this iron core.
3. the manufacturing approach of magnetic drive-type loud speaker according to claim 2 is characterized in that, said vibrating body is circular, is provided with magnetic in this vibrating body towards the side of said magnetic drive unit.
4. the prepared magnetic drive-type of manufacturing approach loud speaker that drives loud speaker according to the said magnetic of claim 1; It is characterized in that: it comprises that one has the vibrating body of magnetic and is used to order about the vibrative magnetic drive unit of this magnetic vibrating body; The periphery of this vibrating body is vertically connected on the wall of a die cavity through damping device; Said plurality of magnetic drive unit evenly is arranged at a side of this vibrating body by spacing distance; This magnetic drive unit accessing to audio electric current produces alternating magnetic field; Thereby the port of this magnetic drive unit is changed with variation not stall between the S utmost point and the N utmost point of alternating magnetic field, and this vibrating body is within the scope of alternating magnetic field of this magnetic drive unit.
5. magnetic drive-type loud speaker according to claim 4 is characterized in that said magnetic drive unit comprises an iron core and a coil; Said coil is wound on this iron core; This coil is communicated with tone currents, and this magnetic drive unit is fixedly set in a side of this vibrating body, vertical this vibrating body of this iron core.
6. magnetic drive-type loud speaker according to claim 5 is characterized in that, said vibrating body is circular, is provided with magnetic in this vibrating body towards the side of said magnetic drive unit.
7. magnetic drive-type loud speaker according to claim 6 is characterized in that its alternative frequency of the alternating magnetic field of said several magnetic drive units is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110253235.8A CN102395089B (en) | 2011-08-30 | 2011-08-30 | Manufacturing method of magnetic drive type loudspeaker and magnetic drive type loudspeaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110253235.8A CN102395089B (en) | 2011-08-30 | 2011-08-30 | Manufacturing method of magnetic drive type loudspeaker and magnetic drive type loudspeaker |
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| Publication Number | Publication Date |
|---|---|
| CN102395089A true CN102395089A (en) | 2012-03-28 |
| CN102395089B CN102395089B (en) | 2014-04-09 |
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| CN201110253235.8A Expired - Fee Related CN102395089B (en) | 2011-08-30 | 2011-08-30 | Manufacturing method of magnetic drive type loudspeaker and magnetic drive type loudspeaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190116406A1 (en) * | 2014-05-20 | 2019-04-18 | Samsung Display Co., Ltd. | Display apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2522184B2 (en) * | 1993-10-28 | 1996-08-07 | 日本電気株式会社 | Digital speaker |
| CN1493168A (en) * | 2000-12-26 | 2004-04-28 | Concentric co-planar multiband electro-acoustic converter | |
| CN1943270A (en) * | 2004-04-05 | 2007-04-04 | 松下电器产业株式会社 | Speaker device |
-
2011
- 2011-08-30 CN CN201110253235.8A patent/CN102395089B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2522184B2 (en) * | 1993-10-28 | 1996-08-07 | 日本電気株式会社 | Digital speaker |
| CN1493168A (en) * | 2000-12-26 | 2004-04-28 | Concentric co-planar multiband electro-acoustic converter | |
| CN1943270A (en) * | 2004-04-05 | 2007-04-04 | 松下电器产业株式会社 | Speaker device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190116406A1 (en) * | 2014-05-20 | 2019-04-18 | Samsung Display Co., Ltd. | Display apparatus |
| CN111128059A (en) * | 2014-05-20 | 2020-05-08 | 三星显示有限公司 | Display device |
| CN111128059B (en) * | 2014-05-20 | 2021-11-23 | 三星显示有限公司 | Display device |
| US11310576B2 (en) | 2014-05-20 | 2022-04-19 | Samsung Display Co., Ltd. | Display apparatus |
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| CN102395089B (en) | 2014-04-09 |
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