CN201435823Y - electroacoustic transducer - Google Patents
electroacoustic transducer Download PDFInfo
- Publication number
- CN201435823Y CN201435823Y CN2009201457983U CN200920145798U CN201435823Y CN 201435823 Y CN201435823 Y CN 201435823Y CN 2009201457983 U CN2009201457983 U CN 2009201457983U CN 200920145798 U CN200920145798 U CN 200920145798U CN 201435823 Y CN201435823 Y CN 201435823Y
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- voice coil
- electroacoustic transducer
- magnetic
- conductive part
- actuator
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Abstract
The utility model relates to an electroacoustic transducer which comprises a first actuator, a second actuator and a vibration component, wherein the vibration component is arranged between the firstactuator and the second actuator, the first actuator is provided with a first magnetic loop composed of a first magnetic conduction component and a first voice coil, the second actuator is also provided with a second magnetic loop composed of a second magnetic conduction component and a second speech coil, the vibration component is provided with magnetic conductibility, and when the first voice coil and the second voice coil receive an electrical signal to enable the first magnetic loop and the second magnetic loop to generate an alternating magnetic field, the vibration component is vibratedalong the alternating magnetic field.
Description
Technical field
The utility model relates to a kind of electroacoustic transducer, particularly relates to a kind ofly having two magnetic circuits and doing simultaneously in order to drive the electroacoustic transducer that vibrating diaphragm is sounded.
Background technology
In recent years because music archive is developed the File Format that significantly reduces the audio data amount, add the playback tonequality of these class archives and do not compress message at first and do not compare obviously and descend, can't influence most of user's auditory perceptions, edge is because of in this, music player is by a large amount of production at present, and the central responsible loud speaker that music archive is played back, the key element of voice output especially, each tame music player produces manufacturer, for the quality and the design of loud speaker, usually also all be to be concerned about the most and to pay attention to.
Seeing also shown in Figure 1ly, is the generalized section of existing known loud speaker.Existing known loud speaker 10, by a housing 11, once yoke plate 13, a magnet 14, a voice coil loudspeaker voice coil 15 and a vibrating diaphragm 16 are formed on the yoke plate 12,, wherein descend yoke plate 12 to be embedded in the housing 11, and magnet 14 is placed in down on the yoke plate 12, be placed in again on the magnet 14 and go up yoke plate 13, and voice coil loudspeaker voice coil 15 in the form of a ring and be incorporated into vibrating diaphragm 16, and voice coil loudspeaker voice coil 15 is plugged in down between yoke plate 12 and the last yoke plate 13 formed gaps, and makes voice coil loudspeaker voice coil 15 be positioned at by in the middle of the magnetic circuit that descends yoke plate 12, last yoke plate 13 and magnet 14 to be constituted.
Above-mentioned existing known loud speaker 10 is that present modal structure is formed, and by providing voice coil loudspeaker voice coil 15 1 signals of telecommunication producing magnetic, and is able to produce the characteristic of inhaling mutually or repelling each other with magnetic circuit, and and then drives vibrating diaphragm 16 and produce vibration and sound.
Because each electronic product is all stressed the design of microminiaturization or slimming now, how present each tame loudspeaker design dealer all thinks hard in is being reduced or is dwindling under the situation of member, still can not influence its acoustics performance, or even produce better acoustics performance, therefore how to design and reduce member or change with size than primary structural component to replace the loud speaker of former member, real is important problem.
Summary of the invention
Because above-mentioned problem, the purpose of this utility model is to provide a kind of to be had two magnetic circuits and does simultaneously in order to drive the electroacoustic transducer that vibrating diaphragm is sounded.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of electroacoustic transducer that the utility model proposes, it includes: one first actuator, have one first magnetic conductive part and one first voice coil loudspeaker voice coil, and this first voice coil loudspeaker voice coil and this first magnetic conductive part form one first magnetic circuit; One second actuator is provided with respect to this first actuator, and has one second magnetic conductive part and one second voice coil loudspeaker voice coil, and this second voice coil loudspeaker voice coil and this second magnetic conductive part form one second magnetic circuit; An and vibrating member, be arranged between this first actuator and this second actuator, this vibrating member has magnetic conductivity, when this first voice coil loudspeaker voice coil and this second voice coil loudspeaker voice coil feed the signal of telecommunication so that this first magnetic circuit during with this second magnetic circuit generation alternating magnetic field, this vibrating member vibrates with alternating magnetic field.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid electroacoustic transducer, wherein said first magnetic conductive part has a projection, and this first voice coil loudspeaker voice coil is arranged at the outer rim of this projection.
Aforesaid electroacoustic transducer, wherein said second magnetic conductive part has a projection, and this second voice coil loudspeaker voice coil is arranged at the outer rim of this projection.
Aforesaid electroacoustic transducer, wherein said first actuator comprises that also one first support ring is located at the outer peripheral edges of this first magnetic conductive part, and this second actuator also comprises that one second support ring is located at the outer peripheral edges of this second magnetic conductive part, the relative outer rim that is located in this vibrating member with this first support of this second support.
Aforesaid electroacoustic transducer, wherein said vibrating member comprise an interlock plate and a vibrating diaphragm, and the central part of this interlock plate is provided with a land for this vibrating diaphragm combination.
Aforesaid electroacoustic transducer, wherein said vibrating diaphragm is made by metal material.
Aforesaid electroacoustic transducer, wherein said vibrating diaphragm has a magnetosphere.
Aforesaid electroacoustic transducer, wherein said interlock plate are a silicon steel sheet, and this interlock plate is formed with at least one ripple glaze along the outer rim of this land.
Voice output when aforesaid electroacoustic transducer, wherein said first magnetic conductive part or this second magnetic conductive part have a perforation for this vibrating member vibration.
Aforesaid electroacoustic transducer, it also comprises a circuit board, this first voice coil loudspeaker voice coil and this second voice coil loudspeaker voice coil respectively have two leads to be electrically connected to this circuit board.
The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the electroacoustic transducer that the utlity model has double magnetic loop has following advantage and beneficial effect at least: the electroacoustic transducer that the utility model disclosed, it is because be to form two groups of the action of a magnetic fields to drive vibration plate vibrates by two groups of actuators, promptly produced voice signal in view of the above, so can omit the magnet that takes up space most in the middle of the present electroacoustic transducer, make that electroacoustic transducer in design can be towards more lightening.In addition, by plating magnetic material so that itself promptly has magnetic on the material, or increase the voice coil loudspeaker voice coil number of turn, all can make magnetic field intensity promote, and then improve acoustics performance such as loudness in vibration.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the cross-sectional schematic that has known loud speaker now.
Fig. 2 is the exploded perspective view of the utility model electroacoustic transducer first preferred embodiment.
Fig. 3 is the cross-sectional schematic of the utility model electroacoustic transducer first preferred embodiment.
Fig. 4 is the exploded perspective view of the utility model electroacoustic transducer second preferred embodiment.
Fig. 5 is the cross-sectional schematic of the utility model electroacoustic transducer second preferred embodiment.
10: loud speaker 11: housing
12: following yoke plate 13: go up yoke plate
14: magnet 15: voice coil loudspeaker voice coil
16: vibrating diaphragm 20: electroacoustic transducer
211: the first magnetic conductive parts of 21: the first actuators
213: the first supports of 212: the first voice coil loudspeaker voice coils
214: projection 215: lead
216: 22: the second actuators of boring a hole
222: the second voice coil loudspeaker voice coils of 221: the second magnetic conductive parts
Support 224 in 223: the second: projection
225: lead 226: perforation
23: vibrating member 231: vibrating diaphragm
232: interlock plate 233: land
234: ripple glaze 235: ripple glaze
24: circuit board
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to being elaborated according to its embodiment of the electroacoustic transducer with double magnetic loop, structure, feature and the effect thereof that the utility model proposes.
See also Fig. 2 and shown in Figure 3, be the exploded perspective view and the cross-sectional schematic of the utility model electroacoustic transducer first preferred embodiment.The electroacoustic transducer 20 of the utility model first preferred embodiment comprises one first actuator 21, one second actuator 22, a vibrating member 23 and a circuit board 24.
Described first actuator 21 has one first magnetic conductive part 211 and one first voice coil loudspeaker voice coil 212, and first voice coil loudspeaker voice coil 212 and first magnetic conductive part, 211 formation, one first magnetic circuit;
Described second actuator 22 is provided with respect to first actuator 21, and has one second magnetic conductive part 221 and one second voice coil loudspeaker voice coil 222 relatively, and second voice coil loudspeaker voice coil 222 and second magnetic conductive part, 221 formation, one second magnetic circuit;
Described vibrating member 23 is arranged between first actuator 21 and second actuator 22, vibrating member 23 has magnetic conductivity, when circuit board 24 transmit the signal of telecommunication to the first voice coil loudspeaker voice coils 212 with second voice coil loudspeaker voice coil 222 so that when first magnetic circuit and second magnetic circuit generation alternating magnetic field, vibrating member 23 vibrates with alternating magnetic field.
Above-mentioned first magnetic conductive part 211 and second magnetic conductive part 221 all are plate-like, and centre is provided with a projection 214,224, first voice coil loudspeaker voice coil 212 and second voice coil loudspeaker voice coil 222 promptly are arranged at the outer rim of projection 214,224, usually can be the outer rim that voice coil loudspeaker voice coil 212,222 is wound in projection 214,224, or the voice coil loudspeaker voice coil that has wound 212,222 be sheathed on the outer rim of projection 214,224; In addition, the centre of first magnetic conductive part 211 and second magnetic conductive part 221 more is provided with perforation 216,226, when vibrating member 23 is sounded because of vibration, by perforation 216,226 outputs.
Moreover, first voice coil loudspeaker voice coil 212 and second voice coil loudspeaker voice coil 222 all have two leads 215,225 to be electrically connected at circuit board 24, use the signal of telecommunication that reception is sent by circuit board 24, and when two voice coil loudspeaker voice coils 212,222 once receive after the signal of telecommunication, promptly form the structure of electromagnet, and therefore generation is magnetic to attract or repulsion vibrating member 23.
Vibrating member 23 is made up of a vibrating diaphragm 231 and an interlock plate 232 in the middle of present embodiment, interlock plate 232 central parts are that a land 233 is for vibrating diaphragm 231 combinations, combination for example is a gummed, in addition, 233 outer rim is formed with a plurality of ripple glazes 234 to interlock plate 232 along the land, when vibrating diaphragm 231 is driven by the magnetic force of first actuator 21 and second actuator 22, these interlock plate 232 vibrations of interlock, and because the structure of ripple glaze is arranged, thereby reduced the rigidity of vibrating member 23, and must make electroacoustic transducer 20 have preferable acoustics performance at low frequency.
Above-mentioned interlock plate 232 may be embodied as a silicon steel sheet, and vibrating diaphragm 231 can be to be made by the metal material, perhaps is formed with a magnetosphere on nonmetallic materials in addition, and its generation type for example can be to deposit a magnetosphere thereon by Film forming method.
Because electroacoustic transducer 20 of the present utility model has disposed two groups of actuators 21,22, give two groups of actuators 21 when simultaneously, during the electric current of 22 equidirectionals, two groups of actuators 21,22 produce the magnetic field of equidirectional, the distribution of its magnetic line of force is for example shown in central first voice coil loudspeaker voice coil 212 of Fig. 3, moreover, because the signal of telecommunication is embodied as positive and negative continuous alternation, so two groups of actuators 21,22 the sense of current and magnetic direction also are continuous alternations, thus, according to signal of telecommunication alternative frequency, two groups of actuators 21,22 magnetic fields that produced can make oscillating plate 23 wherein constantly swing up and down, and therefore output sound signal.
In the middle of Fig. 3, the magnetic line of force only passes through voice coil loudspeaker voice coil 212 and magnetic conductive part 211, if increase the number of turn of voice coil loudspeaker voice coil 213, to make magnetic line of force effect to support 213, and since magnetic conductive part 211 and support 213 all can same material makes and have the magnetic conduction effect equally, therefore can make that magnetic field intensity more increases, thus, can make acoustics such as the loudness performance of electroacoustic transducer 20 more promote.
See also Fig. 4 and shown in Figure 5, be the exploded perspective view and the cross-sectional schematic of the utility model electroacoustic transducer second preferred embodiment.The electroacoustic transducer of present embodiment second preferred embodiment and the difference place of previous embodiment are that mainly the ripple glaze of interlock plate 232 of vibrating member 23 is non-for a plurality of, change at this and only to have a circle and be lower than the ripple glaze 235 of land 233 relatively, they are different in the frequency that vibration the time is produced with the continuous wave Slippage 234 in the middle of first preferred embodiment, thereby applicable electroacoustic transducer in different acoustics performances.
It is last that what must replenish is at this alleged electroacoustic transducer, for example can be loud speaker (or title loudspeaker) etc. by the alternation of the signal of telecommunication transducer with the generation voice signal.
Comprehensively above-mentioned, electroacoustic transducer of the present utility model produces two groups of the action of a magnetic fields to drive vibration plate vibrates by two groups of actuators, and produce voice signal in view of the above, thus, can omit the magnet that takes up space most in the middle of the present electroacoustic transducer, thereby make electroacoustic transducer to design towards more lightening direction.In addition, because the vibration material is to drive by two groups of magnetic fields, therefore can select permeability magnetic material for use, or even will vibrate material and plate band magnetic material to increase magnetic field intensity, or can be by the number of turn that increases voice coil loudspeaker voice coil so that the magnetic line of force increases, the magnetic field intensity of electroacoustic transducer is promoted, and improve acoustics performance such as loudness.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (10)
1, a kind of electroacoustic transducer is characterized in that it includes:
One first actuator has one first magnetic conductive part and one first voice coil loudspeaker voice coil, and this first voice coil loudspeaker voice coil and this first magnetic conductive part form one first magnetic circuit;
One second actuator is provided with respect to this first actuator, and has one second magnetic conductive part and one second voice coil loudspeaker voice coil, and this second voice coil loudspeaker voice coil and this second magnetic conductive part form one second magnetic circuit; And
One vibrating member, be arranged between this first actuator and this second actuator, this vibrating member has magnetic conductivity, and this first magnetic circuit and this second magnetic circuit produce alternating magnetic field when this first voice coil loudspeaker voice coil and this second voice coil loudspeaker voice coil feeding signal of telecommunication, and this vibrating member vibrates with alternating magnetic field.
2, electroacoustic transducer according to claim 1 it is characterized in that wherein said first magnetic conductive part has a projection, and this first voice coil loudspeaker voice coil is arranged at the outer rim of this projection.
3, electroacoustic transducer according to claim 1 it is characterized in that wherein said second magnetic conductive part has a projection, and this second voice coil loudspeaker voice coil is arranged at the outer rim of this projection.
4, electroacoustic transducer according to claim 1, it is characterized in that wherein said first actuator comprises that also one first support ring is located at the outer peripheral edges of this first magnetic conductive part, and this second actuator also comprises that one second support ring is located at the outer peripheral edges of this second magnetic conductive part, the relative outer rim that is located in this vibrating member with this first support of this second support.
5, electroacoustic transducer according to claim 1 it is characterized in that wherein said vibrating member comprises an interlock plate and a vibrating diaphragm, and the central part of this interlock plate is provided with a land for this vibrating diaphragm combination.
6, electroacoustic transducer according to claim 5 is characterized in that wherein said vibrating diaphragm is made by metal material.
7, electroacoustic transducer according to claim 5 is characterized in that wherein said vibrating diaphragm has a magnetosphere.
8, electroacoustic transducer according to claim 5 is characterized in that wherein said interlock plate is a silicon steel sheet, and this interlock plate is formed with at least one ripple glaze along the outer rim of this land.
9, electroacoustic transducer according to claim 1 is characterized in that the voice output when wherein said first magnetic conductive part or this second magnetic conductive part have a perforation for this vibrating member vibration.
10, electroacoustic transducer according to claim 1 is characterized in that it also comprises a circuit board, and this first voice coil loudspeaker voice coil and this second voice coil loudspeaker voice coil respectively have two leads to be electrically connected to this circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201457983U CN201435823Y (en) | 2009-04-21 | 2009-04-21 | electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201457983U CN201435823Y (en) | 2009-04-21 | 2009-04-21 | electroacoustic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435823Y true CN201435823Y (en) | 2010-03-31 |
Family
ID=42054637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201457983U Expired - Fee Related CN201435823Y (en) | 2009-04-21 | 2009-04-21 | electroacoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201435823Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103096224A (en) * | 2013-01-15 | 2013-05-08 | 广东欧珀移动通信有限公司 | Moving-magnetic type speaker |
| CN104618838A (en) * | 2015-02-09 | 2015-05-13 | 张玮 | Moving-magnetic and planar-vortex multi-layer connected type ultrathin receiver (speaker) |
| CN105338454A (en) * | 2015-11-20 | 2016-02-17 | 瑞声光电科技(常州)有限公司 | Long-stroke loudspeaker |
| CN105553217A (en) * | 2016-02-27 | 2016-05-04 | 歌尔声学股份有限公司 | Vibrating motor |
| CN106804020A (en) * | 2017-01-20 | 2017-06-06 | 瑞声科技（南京）有限公司 | Vibrative sound producing device |
| CN111083616A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
| WO2022166373A1 (en) * | 2021-02-07 | 2022-08-11 | 歌尔股份有限公司 | Loudspeaker and electronic device |
-
2009
- 2009-04-21 CN CN2009201457983U patent/CN201435823Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103096224A (en) * | 2013-01-15 | 2013-05-08 | 广东欧珀移动通信有限公司 | Moving-magnetic type speaker |
| CN104618838A (en) * | 2015-02-09 | 2015-05-13 | 张玮 | Moving-magnetic and planar-vortex multi-layer connected type ultrathin receiver (speaker) |
| CN105338454A (en) * | 2015-11-20 | 2016-02-17 | 瑞声光电科技(常州)有限公司 | Long-stroke loudspeaker |
| CN105338454B (en) * | 2015-11-20 | 2018-11-09 | 瑞声光电科技(常州)有限公司 | Long stroke loud speaker |
| CN105553217A (en) * | 2016-02-27 | 2016-05-04 | 歌尔声学股份有限公司 | Vibrating motor |
| CN106804020A (en) * | 2017-01-20 | 2017-06-06 | 瑞声科技（南京）有限公司 | Vibrative sound producing device |
| CN106804020B (en) * | 2017-01-20 | 2020-06-19 | 瑞声科技（南京）有限公司 | Vibration sounding device |
| CN111083616A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
| WO2022166373A1 (en) * | 2021-02-07 | 2022-08-11 | 歌尔股份有限公司 | Loudspeaker and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20110421 |