WO2012011711A2 - Electro-acoustic transducer - Google Patents
Electro-acoustic transducer Download PDFInfo
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- WO2012011711A2 WO2012011711A2 PCT/KR2011/005284 KR2011005284W WO2012011711A2 WO 2012011711 A2 WO2012011711 A2 WO 2012011711A2 KR 2011005284 W KR2011005284 W KR 2011005284W WO 2012011711 A2 WO2012011711 A2 WO 2012011711A2
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- sound
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/04—Sound-producing devices
Definitions
- the present invention relates to an electro-acoustic transducer further comprising an auxiliary acoustic converting unit to accommodate the main acoustic converting unit and the auxiliary acoustic converting unit in one housing to compensate for the sound signal to implement a clearer, higher-resolution sound quality.
- the electro-acoustic transducer is a single acoustic conversion unit in which the sound generated from the front of the diaphragm and the sound generated from the rear face interfere with each other.
- the wavelength is long, so the unit can generate + sound pressure and-sound pressure at the same position, and the sound from the front (+ sound pressure) and the sound from the back (-sound pressure) cancel each other, making it impossible to generate low sound.
- the treble is related to the size of the diaphragm. Depending on the listening position, the + sound pressure and the-sound pressure arrive with a time difference, and they reinforce and cancel each other, resulting in a comb filter phenomenon in the frequency domain. Not good.
- the conventional electro-acoustic transducer has a problem in that the loss of the distortion signal, such as crushed vibration occurs during the vibration of the diaphragm has a deterioration of the acoustic signal.
- the present invention has a purpose to improve the instantaneous reaction characteristics by configuring the outer housing in a sealed type, unlike the structure to install a port in a predetermined portion of the conventional housing to send ultra-low sound to the place.
- the present invention has an object of further comprising an auxiliary sound conversion unit to compensate for the degradation of the sound signal by the loss of crushing, piece vibration, etc. during vibration of the diaphragm of the conventional electro-acoustic transducer.
- an object of the present invention is to form a sound control unit between the main sound converting unit and the sub sound converting unit so that the sound signal during the vibration of the diaphragm can adjust the sound signal along the air passage in the air control hole.
- the present invention is because the main acoustic conversion unit and the sub-acoustic conversion unit is integrally housed inside the housing and vibrates with the same sound signal, so that it is possible to emit a clear sound signal and to implement high-resolution sound quality.
- An electroacoustic transducer comprises: a main acoustic conversion unit which is radiated by converting an audio signal into sound and has a main air control hole; A sub-acoustic conversion unit disposed on the other side of the main acoustic conversion unit so as to face the main sound conversion unit at a predetermined interval, and electrically connected to emit sound by the same audio signal; A sound adjusting unit formed between the main sound converting unit and the sub sound converting unit so that the sound signal of the sub sound converting unit is radiated with the same signal as the sound signal of the main sound converting unit; And a housing accommodating the main sound converting unit and the sub sound converting unit, the housing having a radiation space to radiate the sound to the outside, and the sound control unit compensating the sound signal to the radiation space.
- a sound signal of the main sound conversion unit and the sub sound conversion unit disposed on one side inside the housing may be adjusted in the same space and radiated to the outside through the radiation space.
- the main acoustic conversion unit and the main magnet for generating a magnetic force;
- a main yoke connected to the main magnet and circulating a magnetic force generated in the main magnet to form a magnetic field;
- a main voice coil positioned between the main magnet and the main yoke;
- a main diaphragm connected with the main voice coil;
- a main support ring disposed between the main diaphragm and the main magnet to support the main diaphragm;
- a main nonwoven fabric disposed on the main yacht and adjusting the amount of air in the main air adjusting hole according to the ventilation;
- a main substrate disposed on the main nonwoven fabric to connect the audio signal to the main voice coil.
- the sub acoustic conversion unit and the sub magnet for generating a magnetic force; A sub yoke connected to the sub magnet and circulating a magnetic force generated in the sub magnet to form a magnetic field; A sub magnetic circuit formed and controlled by the sub yoke and the sub magnet; A sub voice coil positioned between the sub magnet and the sub yoke; A sub diaphragm connected to the sub voice coil; A sub support ring disposed between the sub diaphragm and the sub magnet to support the sub diaphragm; A sub-non-woven fabric disposed above the sub yacht to adjust an amount of air in the sub air control hole according to ventilation; And a sub substrate disposed on the sub nonwoven fabric to connect the audio signal to the sub voice coil.
- the sound control unit may be sealed from the outside may have a sealed structure in which the sound signal is generated by adjusting the ventilation of the main and sub air control holes.
- the external housing has an effect of improving the instantaneous response characteristics by configuring the sealed housing.
- the present invention has an effect for compensating the degradation of the sound signal by providing a secondary acoustic conversion unit, the loss of crushing, piece vibration, etc. occurs when vibrating the diaphragm of the conventional electro-acoustic transducer.
- the present invention has an effect that the sound control unit is formed between the main sound conversion unit and the sub sound conversion unit and the sound signal during the vibration of the diaphragm can adjust the sound signal along the air ventilation hole in the air control hole.
- the present invention has an effect that the main acoustic conversion unit and the sub-acoustic conversion unit is integrally housed in the housing to vibrate with the same sound signal to emit a clear sound signal, and to implement high resolution sound quality.
- FIG. 1 is a perspective view of an electroacoustic transducer according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of an electroacoustic transducer according to an embodiment of the present invention.
- FIG. 3 is a cross-sectional view of an electroacoustic transducer according to an embodiment of the present invention.
- FIG. 4 is a graph of acoustic signal frequency in accordance with an embodiment of the present invention.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are only used to distinguish one component from another.
- FIG. 1 is a perspective view of an electroacoustic transducer according to an embodiment of the present invention
- Figure 2 is an exploded perspective view of the electroacoustic transducer according to an embodiment of the present invention
- Figure 3 is an electroacoustic according to an embodiment of the present invention Section of the converter.
- the electro-acoustic transducer is briefly described as a voice coil having a thin copper wire wound around the diaphragm in a cylindrical shape.
- the basic principle is that the diaphragm moves back and forth by the interaction with the magnet on the back of the voice coil.
- an electro-acoustic transducer for converting an audio signal into a sound which has a main sound conversion unit 10 on one side and a sub sound conversion unit 20 on the other side in a single housing 100.
- the main acoustic conversion unit 10 and the sub-sound conversion unit 20 is made of a structure having a sealed space, that is, the sound control unit 30.
- the main sound converting unit 10 and the sub sound converting unit 20 are operated by the same audio signal, and the overall sound characteristics are made by the main sound converting unit 10 and the sound of the sound is transmitted by the sub sound converting unit 20. To allow adjustment.
- the sound signal is compensated by the sound control unit 30 so that the sound signal of the sub-sound conversion unit 20 is radiated with the same signal as the sound signal of the main sound conversion unit 10, and the sound signal is transmitted to the radiation space 40. It serves to radiate in the same direction.
- the internal structure of the main acoustic conversion unit 10 disposed on one side of the housing 100 is connected to the main magnet 11 and the main magnet 11 generating magnetic force, and the main magnet 11 is connected to the main magnet 11.
- the main yoke 12 for circulating the generated magnetic force to form a magnetic field, the main magnetic circuit (not shown) formed and controlled by the main yoke 12 and the main magnet 11, the main magnet 11 and the main Main voice coil 13 positioned between yoke 12, main diaphragm 18 connected to main voice coil 13, and main diaphragm 18 between main diaphragm 18 and main magnet 11.
- a main support ring 14 arranged to support the main yoke 12, a main nonwoven fabric 16 disposed above the main yoke 12 to adjust the air amount in the main air control hole 17 according to the air permeability, and the main nonwoven fabric ( 16) is placed on top of the audio signal to the main voice It includes a main board 15 for connection (13).
- the internal structure of the sub-acoustic conversion unit 20 disposed on the other side of the housing 100 is also connected to the sub-magnet 21 and the sub-magnet 21 for generating a magnetic force, and the sub-magnet 21 A sub yoke 22 for circulating the magnetic force generated in the magnetic field to form a magnetic field, a sub magnetic circuit (not shown) formed and controlled by the sub yoke 22 and the sub magnet 11, the sub magnet 21, and A sub-diaphragm 28 positioned between the sub-yoke 22, a sub-diaphragm 28 connected to the sub-voice coil 23, and a sub-diaphragm 28 between the sub-diaphragm 28 and the sub-magnet 21.
- the main acoustic conversion unit 10 includes a main magnet 11 and a main yoke 12 to form a main magnetic force circuit (not shown), and a main voice coil 13 between them. Position and vibrate up and down according to the audio signal, and the main diaphragm 18 connected to the main voice coil 13 vibrates according to the operation of the main voice coil 13 to convert the audio signal into an acoustic signal. .
- the main and sub air control holes 17 and 28, which allow air control for smooth operation of the main diaphragm 18 and linked operation with the sub sound converting unit 20, are provided. Through the negative signal is adjusted.
- the sub-acoustic conversion unit 20 disposed on the other side of the housing 100 also has a sub-magnetic circuit (not shown) by the sub magnet 21 and the sub yoke 22 similarly to the main acoustic conversion unit 10.
- the sub-vibration plate 28, which is formed therebetween, is positioned between the sub-voice coils 23 and vibrates up and down according to the audio signal, and is connected to the sub-voice coils 23 according to the operation of the sub-voice coils 23.
- the vibration converts the audio signal into a sound signal and serves as an auxiliary role of the main sound converting unit 10 to close the sound control unit between the main sound converting unit 10 and the sub sound converting unit 20.
- the sub diaphragm 28 of the sub acoustic conversion unit 20 always vibrates with the same signal as the main diaphragm 18 by compensating for the loss of crushing and one-piece vibrations during the vibration of the main diaphragm 18 through 30. Clear sound signal and high resolution sound That will be implemented.
- the housing 100 formed integrally accommodates the main sound conversion unit 10 and the sub sound conversion unit 20, so that the sound control unit ( 30 or the sound is radiated to the outside through the radiation space 40 which is controlled by the main and sub air control holes 17 and 28 and formed on one surface of the housing 100. Subsequently, the inside of the housing 100 is hermetically separated from the front and rear of the main and sub diaphragm 28. In other words, the front and rear of the main and sub diaphragm 28 is shielded with a bond to have a sealed structure.
- the front and rear of the main and sub diaphragm (18,28) is sealed and the main and sub nonwoven fabric 16, which is located between the main and sub substrates (15,25) and the main and sub yoke (12,22) 26) Since the ventilation widths of the main and sub diaphragms 18 and 28 are adjusted by adjusting the air permeability, the rear space of the main sound converting unit 10 and the front space of the sub sound converting unit 20 are sealed from the outside. It is preferable.
- FIG. 4 is a graph of an acoustic signal frequency according to an embodiment of the present invention.
- the sub sound conversion unit 20 is further provided to prevent distortion of the low and high frequency domes of the sub diaphragm 28, and thus, about 5 dB at 500 Hz to 3000 Hz. It shows the effect of increasing the sound pressure and achieves the uniform sound pressure in all frequency bands, which makes it possible to realize ideal sound.
- the size of the sound control unit 30 can be larger or smaller, the frequency graph characteristics can be increased or decreased, thereby making the desired frequency graph.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
Claims (4)
- 오디오 신호를 음향으로 변환시켜 방사되고, 메인 공기 조절홀을 가지는 메인 음향 변환유닛; A main sound conversion unit which is radiated by converting an audio signal into sound and has a main air control hole;상기 메인 음향 변환 유닛과 기 설정된 간격만큼 이격되어 대향되도록 타측에 배치되고, 전기적으로 연결되어 동일한 오디오 신호에 의해 음향이 방사되며, 일면에 서브 공기 조절홀을 가지는 서브 음향 변환유닛; 및A sub-acoustic conversion unit disposed on the other side of the main acoustic conversion unit so as to face the main sound conversion unit at a predetermined interval, and electrically connected to emit sound by the same audio signal; And상기 서브 음향 변환유닛의 음향신호가 상기 메인 음향 변환유닛의 음향신호와 동일한 신호로 방사 되도록 상기 메인 음향 변환유닛 및 서브 음향 변환유닛 사이에 형성되는 음향 조절부;A sound adjusting unit formed between the main sound converting unit and the sub sound converting unit so that the sound signal of the sub sound converting unit is radiated with the same signal as the sound signal of the main sound converting unit;상기 메인 음향 변환유닛 및 서브 음향 변환유닛을 수용하며, 일면에 상기 음향을 외부로 방사하기 위해 방사공간을 가지는 하우징;을 포함하고,And a housing accommodating the main sound conversion unit and the sub sound conversion unit, the housing having a radiation space to radiate the sound to the outside on one surface thereof.상기 음향조절부는 상기 음향신호를 보상하여 상기 방사공간으로 음향신호가 방사되도록 하며,The sound control unit compensates the sound signal so that the sound signal is radiated to the radiation space,상기 메인 음향 변환유닛에서 방사되는 음향 신호와, 상기 서브 음향 변환유닛에서 방사되는 음향신호를 상기 메인 및 서브 공기 조절홀을 통해 통기도를 따라 상기 음향신호를 조절하고, The sound signal emitted from the main sound converting unit and the sound signal emitted from the sub sound converting unit are adjusted through the main and sub air control holes along the air passages,일체로 형성된 상기 하우징 내부에 일측에 배치된 메인 음향 변환유닛과 상기 서브 음향 변환유닛의 음향 신호가 동일한 공간에서 조절되어 상기 방사공간을 통해 외부로 방사되는 전기 음향 변환기. And an acoustic signal of the main acoustic conversion unit and the sub acoustic conversion unit disposed on one side of the housing, which are integrally formed, and are radiated to the outside through the radiation space.
- 제 1 항에 있어서,The method of claim 1,상기 메인 음향 변환유닛은The main sound conversion unit자력을 발생시키는 메인 마그네트;A main magnet generating magnetic force;상기 메인 마그네트에 연결 결합되고, 상기 메인 마그네트에서 발생되는 자력을 순환시켜 자기장을 이루게 하는 메인 요크;A main yoke connected to the main magnet and circulating a magnetic force generated from the main magnet to form a magnetic field;상기 메인 요크 및 메인 마그네트에 의해 형성되어 제어하는 메인 자력회로;A main magnetic circuit formed and controlled by the main yoke and the main magnet;상기 메인 마그네트 및 메인 요크 사이에 위치하는 메인 보이스 코일;A main voice coil positioned between the main magnet and the main yoke;상기 메인 보이스 코일과 연결되는 메인 진동판;A main diaphragm connected with the main voice coil;상기 메인 진동판과 상기 메인 마그네트 사이에 상기 메인 진동판을 지지하기 위해 배치되는 메인 지지링;A main support ring disposed between the main diaphragm and the main magnet to support the main diaphragm;상기 메인 요크 상부에 배치되어 통기도에 따라 상기 메인 공기 조절 홀에 공기양을 조절하는 메인 부직포;A main nonwoven fabric disposed above the main yoke to adjust an amount of air in the main air adjusting hole according to ventilation;상기 메인 부직포 상부에 배치되어 상기 오디오 신호를 상기 메인 보이스 코일에 연결시키는 메인 기판;을 포함하는 전기 음향 변환기An electroacoustic transducer disposed on the main nonwoven fabric and configured to connect the audio signal to the main voice coil
- 제 1 항에 있어서,The method of claim 1,상기 서브 음향 변환유닛은The sub sound conversion unit자력을 발생시키는 서브 마그네트;A sub magnet for generating magnetic force;상기 서브 마그네트에 연결 결합되고, 상기 서브 마그네트에서 발생되는 자력을 순환시켜 자기장을 이루게 하는 서브 요크;A sub yoke connected to the sub magnet and circulating a magnetic force generated in the sub magnet to form a magnetic field;상기 서브 요크 및 서브 마그네트에 의해 형성되어 제어하는 서브 자력회로;A sub magnetic circuit formed and controlled by the sub yoke and the sub magnet;상기 서브 마그네트 및 서브 요크 사이에 위치하는 서브 보이스 코일;A sub voice coil positioned between the sub magnet and the sub yoke;상기 서브 보이스 코일과 연결되는 서브 진동판;A sub diaphragm connected to the sub voice coil;상기 서브 진동판과 상기 서브 마그네트 사이에 상기 서브 진동판을 지지하기 위해 배치되는 서브 지지링;A sub support ring disposed between the sub diaphragm and the sub magnet to support the sub diaphragm;상기 서브 요크 상부에 배치되어 통기도에 따라 상기 서브 공기 조절홀에 공기양을 조절하는 서브 부직포;A sub-non-woven fabric disposed above the sub yoke to adjust an air amount in the sub air control hole according to the ventilation;상기 서브 부직포 상부에 배치되어 상기 오디오 신호를 상기 서브 보이스 코일에 연결시키는 서브 기판;을 포함하는 전기 음향 변환기.And a sub substrate disposed on the sub nonwoven fabric to connect the audio signal to the sub voice coil.
- 제 1 항에 있어서,The method of claim 1,상기 음향조절부는 외부로부터 밀폐되기 위한 밀폐형 구조를 갖는 전기 음향변환기The sound control unit has an electric acoustic transducer having a sealed structure for sealing from the outside
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JP2013512550A JP2013531936A (en) | 2010-07-21 | 2011-07-19 | Electroacoustic transducer |
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KR2020100007649U KR200459713Y1 (en) | 2010-07-21 | 2010-07-21 | Electro-acoustic transducer |
KR20-2010-0007649 | 2010-07-21 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002238093A (en) * | 2001-02-09 | 2002-08-23 | Pioneer Electronic Corp | Electro-mechanical acoustic converter |
KR200338060Y1 (en) * | 2003-10-14 | 2004-01-13 | 이호재 | structure of a multi function for piezo ceramic diaphragm which is combined voice coil |
KR20040052450A (en) * | 2000-12-26 | 2004-06-23 | 안데르스 사그렌 | Concentric co-planar multiband electro-acoustic converter |
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JPH09307996A (en) * | 1996-05-15 | 1997-11-28 | Megasera:Kk | Piezoelectric speaker |
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- 2011-07-19 WO PCT/KR2011/005284 patent/WO2012011711A2/en active Application Filing
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KR20040052450A (en) * | 2000-12-26 | 2004-06-23 | 안데르스 사그렌 | Concentric co-planar multiband electro-acoustic converter |
JP2002238093A (en) * | 2001-02-09 | 2002-08-23 | Pioneer Electronic Corp | Electro-mechanical acoustic converter |
KR200338060Y1 (en) * | 2003-10-14 | 2004-01-13 | 이호재 | structure of a multi function for piezo ceramic diaphragm which is combined voice coil |
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WO2012011711A3 (en) | 2012-03-15 |
KR20120000753U (en) | 2012-02-02 |
KR200459713Y1 (en) | 2012-04-12 |
JP2013531936A (en) | 2013-08-08 |
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