CN102395089B - 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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- CN102395089B CN102395089B CN201110253235.8A CN201110253235A CN102395089B CN 102395089 B CN102395089 B CN 102395089B CN 201110253235 A CN201110253235 A CN 201110253235A CN 102395089 B CN102395089 B CN 102395089B
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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 manufacture method of magnetic drive-type loud speaker and a kind ofly implement the magnetic drive-type loud speaker that the method makes.
Background technology
In 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, by electromagnetism, piezoelectricity or electrostatic effect, makes its vibrating body vibration, thereby produces resonance (sympathetic response) with ambient air and sound.
Loud speaker is divided into electrodynamic type, electrostatic, crystal or ceramic-type, compressed spring type, the gentle loudspeaker of electric ion type 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, as seen from Figure 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 with centre bore, this iron core 11 is placed in this centre bore, the top of this magnet 13 is provided with an iron plate 14, on described iron core 11, be arranged with movably a coil 15, the end of this coil 15 is connected with a vibrating body 17 by a skeleton 16, the centre position of this vibrating body 17 is connected on this skeleton 16, the periphery of this vibrating body 17 is fixed by spring or other modes, when coil 15 accessing to audio electric current, on coil 15, produce alternating magnetic field, the magnetic pole at coil 15 two ends does not stop conversion, under the magneticaction of magnet 13, coil 15 is along with the input of tone currents does not stop to move reciprocatingly, thereby making vibrating body 17 produce vibration wave and produce resonance with air sounds.But because the centre position of this vibrating body 17 is just provided with a vibration source, thereby can cause the distortion level of sound larger, be difficult to by original acoustic fidelity reduce.
Summary of the invention
The object of the invention is to, a kind of manufacture method of magnetic drive-type loud speaker is provided, by the enforcement of the 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 by original acoustic fidelity reduce, distortion is little.
The present invention also provides a kind of prepared magnetic drive-type of manufacture method loud speaker of implementing described magnetic drive-type loud speaker.
The technical scheme that the present invention adopted is for achieving the above object:
A manufacture method for magnetic drive-type loud speaker, it comprises the following steps:
(1) manufacture one and be with magnetic vibrating body, the periphery of this vibrating body is vertically connected on the wall of a die cavity by damping device;
(2) manufacture some for ordering about the vibrative magnetic drive unit of this magnetic vibrating body, 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) within described some magnetic drive units are evenly arranged to a side of this vibrating body and make the scope of the alternating magnetic field of this vibrating body in this magnetic drive unit by spacing distance, its alternative frequency of the alternating magnetic field of these several magnetic drive units is identical;
(4) described some magnetic drive unit work, these some magnetic drive units change near the not stall of magnetic pole of vibrating body one end, when this magnetic drive unit is identical with magnetic magnetic pole on vibrating body near the magnetic pole of vibrating body one end, due to two like magnetic poles repel each other, the periphery of this vibrating body is connected on the wall of die cavity by damping device, thereby this vibrating body is by magnetic force moving sidesway outward; When this magnetic drive unit is contrary with magnetic magnetic pole on vibrating body near the magnetic pole of vibrating body one end, because there is a natural attraction between the sexes, thereby this vibrating body is pulled toward interior sidesway by magnetic force;
(5) because described some these drive units are evenly arranged at a side of this vibrating body by spacing distance, under the effect of the alternating magnetic field of these some magnetic drive units, order about this magnetic vibrating body and carry out plane vibration, thereby produce and do not have dephased plane wave in audiorange, between this plane wave and air, resonate sent sound can by original acoustic fidelity reappear, distortion is little.
As a further improvement on the present invention, described magnetic drive unit comprises an iron core and a coil, and described coil winding is on this iron core, and this coil is communicated with tone currents, and this magnetic drive unit is fixedly installed on a side of this vibrating body, vertical this vibrating body of this iron core.
As a further improvement on the present invention, described vibrating body is circular, in this vibrating body, towards the side of described magnetic drive unit, is provided with magnetic.
A kind of prepared magnetic drive-type of manufacture method loud speaker that drives loud speaker according to aforementioned magnetic, it comprises is with magnetic vibrating body and for ordering 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 by damping device, described some magnetic drive units are evenly 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, within the scope of the alternating magnetic field of this vibrating body in this magnetic drive unit.
As a further improvement on the present invention, described magnetic drive unit comprises an iron core and a coil, and described coil winding is on this iron core, and this coil is communicated with tone currents, and this magnetic drive unit is fixedly installed on a side of this vibrating body, vertical this vibrating body of this iron core.
As a further improvement on the present invention, described vibrating body is circular, in this vibrating body, towards the side of described magnetic drive unit, is provided with magnetic.
As a further improvement on the present invention, its alternative frequency of the alternating magnetic field of described several magnetic drive units is identical.
Magnetic drive-type loud speaker of the present invention is full frequency speaker.
Beneficial effect of the present invention is: the inventive method is easily implemented, this magnetic drive-type loadspeaker structure is simple, design ingenious, by by this vibrating body by damping device connect with surface of mould cavity on, a side at this vibrating body evenly arranges several magnetic drive units by spacing distance, thereby can make this vibrating body carry out plane vibration, in audiorange, produce and do not have dephased plane wave, between this plane wave and air, resonate sent sound can by original acoustic fidelity reappear, distortion is little.
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing dynamic speaker;
Fig. 2 is structural representation of the present invention.
Embodiment
Embodiment: see Fig. 2, the manufacture method of a kind of magnetic drive-type of the present invention loud speaker, it comprises the following steps:
(1) manufacture one and be with magnetic vibrating body 17, the periphery of this vibrating body 17 is vertically connected on the wall of a die cavity 19 by damping device 18;
(2) manufacture some for ordering about the vibrative magnetic drive unit 2 of this magnetic vibrating body 17, 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) within described some magnetic drive units 2 are evenly arranged to a side of this vibrating body 17 and make the scope of the alternating magnetic field of this vibrating body 17 in this magnetic drive unit 2 by spacing distance, its alternative frequency of the alternating magnetic field of these several magnetic drive units 2 is identical;
(4) described some magnetic drive units 2 work, these some magnetic drive units 2 change near the not stall of magnetic pole of vibrating body 17 one end, when this magnetic drive unit 2 is identical with magnetic magnetic pole on vibrating body 17 near the magnetic pole of vibrating body 17 one end, due to two like magnetic poles repel 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 by magnetic force moving sidesway outward; When this magnetic drive unit 2 is contrary with magnetic magnetic pole on vibrating body 17 near the magnetic pole of vibrating body 17 one end, because there is a natural attraction between the sexes, thereby this vibrating body 17 is pulled toward interior sidesway by magnetic force;
(5) because described some these drive units are evenly arranged at a side of this vibrating body 17 by spacing distance, under the effect of the alternating magnetic field of these some magnetic drive units 2, order about this magnetic vibrating body 17 and carry out plane vibration, thereby produce and do not have dephased plane wave in audiorange, between this plane wave and air, resonate sent sound can by original acoustic fidelity reappear, distortion is little.
Described magnetic drive unit 2 comprises an iron core 11 and a coil 15, and described 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 installed on a side of this vibrating body 17, vertical this vibrating body 17 of this iron core 11.
Described vibrating body 17 is circular, in this vibrating body 17, towards the side of described magnetic drive unit 2, is provided with magnetic.
A kind of prepared magnetic drive-type of manufacture method loud speaker that drives loud speaker according to aforementioned magnetic, it comprises is with magnetic vibrating body 17 and for ordering about the vibrative magnetic drive unit 2 of this magnetic vibrating body 17, the periphery of this vibrating body 17 is vertically connected on the wall of a die cavity 19 by damping device 18, described some magnetic drive units 2 are evenly arranged at a side of this vibrating body 17 by spacing distance, 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, within the scope of the alternating magnetic field of this vibrating body 17 in this magnetic drive unit 2.
Described magnetic drive unit 2 comprises an iron core 11 and a coil 15, and described 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 installed on a side of this vibrating body 17, vertical this vibrating body 17 of this iron core 11.
Described vibrating body 17 is circular, in this vibrating body 17, towards the side of described magnetic drive unit 2, is provided with magnetic.
Its alternative frequency of the alternating magnetic field of described several magnetic drive units 2 is identical.
The inventive method is easily implemented, this magnetic drive-type loadspeaker structure is simple, design ingenious, by this vibrating body 17 is passed through on damping device 18 connections and die cavity 19 walls, a side at this vibrating body 17 evenly arranges several magnetic drive units 2 by spacing distance, thereby can make this vibrating body 17 carry out plane vibration, in audiorange, produces and does not have dephased plane wave, between this plane wave and air, resonate sent sound can by original acoustic fidelity reappear, distortion is little.
As described in the present embodiment of the invention, with manufacture method 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 (5)
1. a manufacture method for magnetic drive-type loud speaker, is characterized in that: it comprises the following steps:
(1) manufacture one and be with magnetic vibrating body, the periphery of this vibrating body is vertically connected on the wall of a die cavity by damping device;
(2) manufacture somely for ordering about the vibrative magnetic drive unit of this magnetic vibrating body, 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; Described magnetic drive unit comprises an iron core and a coil, and described coil winding is on this iron core, and this coil is communicated with tone currents, and this magnetic drive unit is fixedly installed on a side of this vibrating body, vertical this vibrating body of this iron core;
(3) within described some magnetic drive units are evenly arranged to a side of this vibrating body and make the scope of the alternating magnetic field of this vibrating body in this magnetic drive unit by spacing distance, its alternative frequency of the alternating magnetic field of these several magnetic drive units is identical;
(4) described some magnetic drive unit work, these some magnetic drive units change near the not stall of magnetic pole of vibrating body one end, when this magnetic drive unit is identical with magnetic magnetic pole on vibrating body near the magnetic pole of vibrating body one end, due to two like magnetic poles repel each other, the periphery of this vibrating body is connected on the wall of die cavity by damping device, thereby this vibrating body is by magnetic force moving sidesway outward; When this magnetic drive unit is contrary with magnetic magnetic pole on vibrating body near the magnetic pole of vibrating body one end, because there is a natural attraction between the sexes, thereby this vibrating body is pulled toward interior sidesway by magnetic force;
(5) because described some magnetic drive units are evenly arranged at a side of this vibrating body by spacing distance, under the effect of the alternating magnetic field of these some magnetic drive units, order about this magnetic vibrating body and carry out plane vibration, thereby produce and do not have dephased plane wave in audiorange, between this plane wave and air, resonate sent sound can by original acoustic fidelity reappear, distortion is little.
2. the manufacture method of magnetic drive-type loud speaker according to claim 1, is characterized in that, described vibrating body is circular vibrating body, in this vibrating body, towards the side of described magnetic drive unit, is provided with magnetic.
One kind according to claim 1 magnetic drive the prepared magnetic drive-type of the manufacture method loud speaker of loud speaker, it is characterized in that: it comprises is with magnetic vibrating body and for ordering 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 by damping device, described some magnetic drive units are evenly arranged at a side of this vibrating body by spacing distance, described magnetic drive unit comprises an iron core and a coil, described coil winding is on this iron core, this coil is communicated with tone currents, this magnetic drive unit is fixedly installed on a side of this vibrating body, vertical this vibrating body of this iron core, 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, within the scope of the alternating magnetic field of this vibrating body in this magnetic drive unit.
4. magnetic drive-type loud speaker according to claim 3, is characterized in that, described vibrating body is circular vibrating body, in this vibrating body, towards the side of described magnetic drive unit, is provided with magnetic.
5. magnetic drive-type loud speaker according to claim 4, is characterized in that, its alternative frequency of the alternating magnetic field of described 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 CN102395089A (en) | 2012-03-28 |
| CN102395089B true CN102395089B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102229137B1 (en) * | 2014-05-20 | 2021-03-18 | 삼성디스플레이 주식회사 | 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 |
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| CN102395089A (en) | 2012-03-28 |
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Owner name: DONGGUAN 3G AUDIO TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DONGGUAN ELDER AUDIO MANUFACTURING CO., LTD. Effective date: 20140306 |
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Effective date of registration: 20140306 Address after: 523000 28 elephant Road, horizontal village, Dalang Town, Guangdong, Dongguan Applicant after: 3G AUDIO TECHNOLOGY Co.,Ltd. Address before: 523800 Guangdong province Dongguan Dalang town horizontal village Xiangshan industry city elephant and road 28 Applicant before: ELDER AUDIO MANUFACTURE Co.,Ltd. |
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