CN103152679A - Electromagnetism transient magnetic loudspeaker - Google Patents
Electromagnetism transient magnetic loudspeaker Download PDFInfo
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- CN103152679A CN103152679A CN2013100807270A CN201310080727A CN103152679A CN 103152679 A CN103152679 A CN 103152679A CN 2013100807270 A CN2013100807270 A CN 2013100807270A CN 201310080727 A CN201310080727 A CN 201310080727A CN 103152679 A CN103152679 A CN 103152679A
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- vibrating diaphragm
- magnetic conductor
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- loud speaker
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Abstract
The invention provides an electromagnetism transient magnetic loudspeaker, which comprises a vibrating diaphragm, wherein a magnetizer is arranged on the vibrating diaphragm; an electromagnetic device is arranged on an opposite position of the magnetizer, and comprises a coil opposite to the magnetizer, and a magnetic bar; and the magnetic bar penetrates through an inner opening of the coil so as to be opposite to the magnetizer. The weight of the vibrating diaphragm is reduced; due to the removal of a voice coil, the axial movement of the voice coil in a magnetic gap is avoided; an electromagnetic type power structure is adopted, so that compared with an existing permanent magnet, the magnetic density is higher, a sound signal can be performed at high speed; a plane vibrating diaphragm design is adopted, so that voice frequency can be parallely transmitted, the defect of emission of voice frequency of a bowl type vibrating diaphragm is overcome, and the sound signal can be highly positioned; and a nickel ring has the characteristics of magnetization, inoxidizability, acid and alkali corrosion and the like, so that the service life of the loudspeaker is greatly prolonged, the problems that the magnetic force of a permanent magnet is reduced, and the tone quality is affected are solved, and graceful sound with high sound quality, clearness, enriched detail and wonderful layering performance is realized.
Description
Technical field
The present invention relates to the loud speaker field, relate in particular to a kind of electromagnetism transient magnetism formula loud speaker that utilizes energising to generate an electromagnetic field.
Background technology
Loud speaker is a kind of equipment that electric energy is converted to sound, therefore, comprise as shown in Figure 1 electromagnetic loudspeaker and dynamic speaker as shown in Figure 2.
for electromagnetic loudspeaker, critical piece comprises permanent magnet 1, pin type soft iron 2, coil 3, paper disc 4(or claim vibrating diaphragm) and the composition such as basin frame 5, its principle of sound is: the sound-source signal power supply is by after coil 3, can be pin type soft iron 2 magnetization that are connected on paper disc 4, and change the polarity of pin type soft iron 2 according to the positive and negative variation of sound-source signal power supply, thereby make the pin type soft iron 2 that has magnetized attract each other with permanent magnet 1 or mutually repel, but the impedance of this class electromagnetic loudspeaker is high, frequency characteristic is poor, the amplitude up and down of paper disc 4 is little, be applied to countryside broadcast during the 1950's, but replaced by now dynamic speaker.
Dynamic speaker, mainly comprise the coil 2 ' (voice coil loudspeaker voice coil) that pastes on vibrating membrane 1 ', be provided with permanent magnet 3 ' with this vibrating membrane 1 ' corresponding surface, the middle part of permanent magnet 3 ' is provided with the iron staff 4 ' corresponding with coil 2 ', can produce magnetic field and attract or repel iron staff 4 ' when coil 2 ' energising, driven the vibrations of vibrating membrane 1 ' by coil 2 ', make the sound source signal electric current drive vibrating membrane 1 ' by coil 2 ' and promote air, produce sound wave consistent with tone currents.Yet, its problem is: 1, the vibrational system of dynamic speaker is that coil 2 ' adds vibrating diaphragm, the signal of telecommunication is first to be added on voice coil loudspeaker voice coil, make it to form axial motion and promote vibrating diaphragm, thereby do not have voice coil loudspeaker voice coil just can not work, and excitation is during air, and task of making the signal of telecommunication be converted to acoustical signal is to be completed by vibrating diaphragm; 2, voice coil loudspeaker voice coil is on the load vibrating diaphragm, thereby the weight of vibrating diaphragm has been subject to the very big restriction of voice coil loudspeaker voice coil; 3, the axial motion of voice coil loudspeaker voice coil in magnetic gap also can be followed the vibrating diaphragm vibrations, and it can produce buzzer, and voice coil loudspeaker voice coil is larger, and stroke is longer, and the buzzing distortion is larger; 4, the switch of vibrating diaphragm must be that taper or ball push up shape, simultaneously in order to increase flexibility, on vibrating diaphragm, ring must be arranged, and produce diaphagras but its problem is meeting, and the inconsistency of its standing wave and time constant causes larger distortion.
Summary of the invention
The invention provides a kind of electromagnetism transient magnetism formula loud speaker, its purpose is to solve the weight of vibrating diaphragm loading coil, directly alleviates the overall weight of vibrating diaphragm, avoids simultaneously the magnetic gap in voice coil loudspeaker voice coil friction magnetite and produces noise, distortion or damage the problem of voice coil loudspeaker voice coil.
To this, the present invention includes vibrating diaphragm, described vibrating diaphragm is provided with a magnetic conductor, is provided with a calutron with the subtend position of described magnetic conductor, described calutron comprise relative with described magnetic conductor to coil.
Described magnetic conductor is nickel metallic object or ferrous metal body preferably as can be known as above-mentioned, and this magnetic conductor is provided with interior round mouth.
As above-mentioned preferably as can be known, described magnetic conductor is the nickel thin slice of chip shape.
Described vibrating diaphragm is 5:3 with the diameter ratio of magnetic conductor.
Described calutron arranges a bar magnet preferably as can be known as above-mentioned, described bar magnet pass described coil internal orifice and relative with described magnetic conductor to.
As above-mentioned preferably as can be known, described bar magnet is the electromagnetic type bar magnet of energising with magnetic.
Described vibrating diaphragm is circular configuration preferably as can be known as above-mentioned, have to put face and interior junction outward, wherein, and the central position of the described interior junction described magnetic conductor of fitting, described magnetic conductor subtend is in described bar magnet.
As above-mentioned preferably as can be known, described vibrating diaphragm is square structure.
As above-mentioned preferably as can be known, described vibrating diaphragm outer put the face place and is provided with the scrimp that increases this vibrating diaphragm vibration amplitude.
Beneficial effect of the present invention is: adopt the tone currents signal to convert the magnetic force signal to, thereby then attract the nickel ring to promote the vibrating diaphragm sounding, its advantage is as follows:
1, reduced vibrating diaphragm weight, vibrating diaphragm can be realized lighter and thinner thickness, thereby produces the vibrating diaphragm near electrostatic loudspeaker, and the audio system playback that makes it to produce is clear, and details is abundant, and stereovision is fabulous, the sound of tonequality grace.
2, the technical program does not have voice coil loudspeaker voice coil, has removed the axial motion of voice coil loudspeaker voice coil in magnetic gap, excitation air and produce buzzer.
3, this programme does not have voice coil loudspeaker voice coil, can produce the more loud speaker of small size.
4, adopt the more existing permanent magnet of dynamic structure of electromagnetic type to compare magnetic density higher, the performance that audio signal can be more at a high speed realizes tonequality reduction and the details expressive force of height.
5, can take the plane diaphragm design to make the audio frequency horizontal infection, overcome bowl deficiency that formula vibrating diaphragm audio frequency is dispersed, energy altitude location audio signal is suitable for making the better household audio and video system in audio frequency location.
6, the nickel metallic object has the characteristics such as magnetizability, non-oxidizability, acid-alkali-corrosive-resisting, can greatly extend the useful life of loud speaker.
7 owing to not establishing the permanent magnetism part, changes by electromagnetism to replace, and do not exist permanent magnet magnetic force to go down, and affects the problem of tonequality performance.
Description of drawings
Fig. 1 is the schematic diagram of traditional electrical magnetic loudspeaker.
Fig. 2 is the schematic diagram of traditional electrical dynamic formula loud speaker.
Fig. 3 is schematic diagram of the present invention.
Fig. 4 is the exploded sketch of Fig. 3.
Embodiment
the invention will be further described below in conjunction with accompanying drawing, as shown in Figure 3, it comprises vibrating diaphragm 1, described vibrating diaphragm 1 is provided with a magnetic conductor 2, described magnetic conductor 2 can stickup or injection moulding and being embedded in vibrating diaphragm 1, this preferred embodiment is by shown in Figure 4, magnetic conductor 2 is pasted on this vibrating diaphragm 1, be provided with a calutron 3 with the subtend position of described magnetic conductor 2, described calutron 3 comprise relative with described magnetic conductor 2 to coil 31, this vibrating diaphragm 1 can adopt: biofilm, plastic film, the materials such as wooden film, this magnetic conductor 2 is that the permeability magnetic materials such as nickel metallic object or ferrous metal body are made, be provided with interior round mouth 21, certainly, can make the laminate magnetic conduction sheet of shape of this magnetic conductor 2 according to need of production, identical good magnetic conduction effect is also arranged.
Further carefully state, described calutron 3 arranges a bar magnet 32, described bar magnet 32 pass described coil 31 internal orifices and relative with described magnetic conductor 2 to, described vibrating diaphragm 1 is circular configuration, more can be set to the square or rectangular structure, it has outer put face 11 and interior junction 12, wherein, the described magnetic conductor 2 of central position applying of described interior junction 12, described magnetic conductor 2 subtends are in described bar magnet 32, and this bar magnet 32 that is to say for the electromagnetic type bar magnet of energising with magnetic, bar magnet 32 in cold situation for not being with magnetic.Described vibrating diaphragm 1 is 5:3 with the diameter ratio of magnetic conductor 2.
In order to increase the vibration amplitude of vibrating diaphragm 1, described vibrating diaphragm 1 outer put face 11 places and is provided with scrimp 13, and when the week of vibrating diaphragm 1 was fixed along the limit, the magnetic conductor that is positioned at the junction middle part can drive according to the electromagnetic attraction of calutron 2 vibrations of vibrating diaphragm 1.In addition, the magnetic field of still leaving after bar magnet 32 is magnetized, coordinate the magnetic field in coil 31, the combination in two magnetic fields is stronger than the magnetic field of native magnet, and the phenomenon that reduces of the magnetic field that can avoid native magnet, therefore, the present invention can set as required the number of turns of coil 31 and determine the magnetic field intensity of bar magnet 32, and exports desirable sound.
As take soft iron as example:
(1) soft iron rod (being bar magnet 32) is inserted helical coil 31 inside, when coil 31 is connected with tone currents, the magnetic field of coil 31 inside makes soft iron rod 32 be magnetized into temporary magnet, but during failure of current, the magnetic of coil 31 and soft iron rod 32 is along with disappearance.
(2) magnetic field that generates after soft iron rod 32 magnetization adds the magnetic field in original coil 31, makes total magnetic intensity greatly strengthen, therefore the large what native magnet of the magnetic force of electromagnet.
(3) electric current of helical coil 31 is larger, wire circle the more, the magnetic field of electromagnet is stronger.
(4), tone currents produces magnetic by the copper wire that is wrapped in soft iron rod 32,32 moments of soft iron rod the total magnetic field grow that is magnetized, the magnetic attraction of generation is pasted the magnetic conductor 2 in vibrating diaphragm, produces vibration.Drive vibrating diaphragm 1 and promote air, produce sound wave consistent with tone currents.
Above-mentioned specific embodiment only is effect of the present invention embodiment preferably, and all or electromagnetism transient magnetism formula loud speakers of being equal to identical with this structure are all in the application's protection range.
Claims (9)
1. electromagnetism transient magnetism formula loud speaker, it comprises vibrating diaphragm (1), it is characterized in that: described vibrating diaphragm (1) is provided with a magnetic conductor (2), be provided with a calutron (3) with the subtend position of described magnetic conductor (2), described calutron (3) comprise relative with described magnetic conductor (2) to coil (31).
2. electromagnetism transient magnetism formula loud speaker according to claim 1, it is characterized in that: described magnetic conductor (2) is nickel metallic object or ferrous metal body, and this magnetic conductor is provided with interior round mouth (21).
3. electromagnetism transient magnetism formula loud speaker according to claim 1 is characterized in that: the diameter of described vibrating diaphragm (1) and magnetic conductor (2) is than being 5:3.
4. electromagnetism transient magnetism formula loud speaker according to claim 1, it is characterized in that: described magnetic conductor (2) is the magnetic conduction sheet of chip shape.
5. electromagnetism transient magnetism formula loud speaker according to claim 1, it is characterized in that: described calutron (3) arranges a bar magnet (32), described bar magnet (32) pass described coil (31) internal orifice and relative with described magnetic conductor (2) to.
6. electromagnetism transient magnetism formula loud speaker according to claim 5, it is characterized in that: described bar magnet (32) is the electromagnetic type bar magnet of energising with magnetic.
7. electromagnetism transient magnetism formula loud speaker according to claim 1, it is characterized in that: described vibrating diaphragm (1) is circular configuration, have outer put face (11) and interior junction (12), wherein, the central position applying described magnetic conductor (2) of described interior junction (12), described magnetic conductor (2) subtend is in described bar magnet (32).
8. electromagnetism transient magnetism formula loud speaker according to claim 1, it is characterized in that: described vibrating diaphragm (1) is square structure.
9. electromagnetism transient magnetism formula loud speaker according to claim 7, it is characterized in that: the outer face (11) of putting of described vibrating diaphragm (1) locates to be provided with the scrimp (13) that increases this vibrating diaphragm (1) vibration amplitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100807270A CN103152679A (en) | 2013-03-14 | 2013-03-14 | Electromagnetism transient magnetic loudspeaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100807270A CN103152679A (en) | 2013-03-14 | 2013-03-14 | Electromagnetism transient magnetic loudspeaker |
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| CN103152679A true CN103152679A (en) | 2013-06-12 |
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| CN2013100807270A Pending CN103152679A (en) | 2013-03-14 | 2013-03-14 | Electromagnetism transient magnetic loudspeaker |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853304A (en) * | 2015-04-23 | 2015-08-19 | 歌尔声学股份有限公司 | Silicone vibrating diaphragm, receiver module and method for processing silicone vibrating diaphragm |
| CN105376681A (en) * | 2015-11-24 | 2016-03-02 | 中国矿业大学 | Planar coil driven film loudspeaker |
| CN109246514A (en) * | 2018-09-30 | 2019-01-18 | 歌尔科技有限公司 | A kind of wireless speakers and earphone |
| WO2022166375A1 (en) * | 2021-02-02 | 2022-08-11 | 歌尔股份有限公司 | Sound production unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330774A (en) * | 2007-06-21 | 2008-12-24 | 瑞声声学科技(深圳)有限公司 | Method for assembling electromagnetic audible device |
| CN201204690Y (en) * | 2008-02-29 | 2009-03-04 | 瑞声声学科技(深圳)有限公司 | Electromagnetic buzzer |
| CN101662717A (en) * | 2008-08-29 | 2010-03-03 | 蒋明兴 | In-ear minitype rare earth moving iron type loudspeaker |
| CN203225877U (en) * | 2013-03-14 | 2013-10-02 | 胡宗科 | Electromagnetic transient magnetism type speaker |
-
2013
- 2013-03-14 CN CN2013100807270A patent/CN103152679A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330774A (en) * | 2007-06-21 | 2008-12-24 | 瑞声声学科技(深圳)有限公司 | Method for assembling electromagnetic audible device |
| CN201204690Y (en) * | 2008-02-29 | 2009-03-04 | 瑞声声学科技(深圳)有限公司 | Electromagnetic buzzer |
| CN101662717A (en) * | 2008-08-29 | 2010-03-03 | 蒋明兴 | In-ear minitype rare earth moving iron type loudspeaker |
| CN203225877U (en) * | 2013-03-14 | 2013-10-02 | 胡宗科 | Electromagnetic transient magnetism type speaker |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853304A (en) * | 2015-04-23 | 2015-08-19 | 歌尔声学股份有限公司 | Silicone vibrating diaphragm, receiver module and method for processing silicone vibrating diaphragm |
| WO2016169283A1 (en) * | 2015-04-23 | 2016-10-27 | 歌尔声学股份有限公司 | Silica gel diaphragm, receiver module, and method for processing silica gel diaphragm |
| US10375462B2 (en) | 2015-04-23 | 2019-08-06 | Goertek Inc. | Silica gel diaphragm, receiver module, and method for processing silica gel diaphragm |
| CN105376681A (en) * | 2015-11-24 | 2016-03-02 | 中国矿业大学 | Planar coil driven film loudspeaker |
| CN105376681B (en) * | 2015-11-24 | 2018-06-12 | 中国矿业大学 | A kind of planar coil drive-type film-type loud speaker |
| CN109246514A (en) * | 2018-09-30 | 2019-01-18 | 歌尔科技有限公司 | A kind of wireless speakers and earphone |
| WO2022166375A1 (en) * | 2021-02-02 | 2022-08-11 | 歌尔股份有限公司 | Sound production unit |
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Application publication date: 20130612 |