KR200459713Y1 - Electro-acoustic transducer - Google Patents

Electro-acoustic transducer Download PDF

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Publication number
KR200459713Y1
KR200459713Y1 KR2020100007649U KR20100007649U KR200459713Y1 KR 200459713 Y1 KR200459713 Y1 KR 200459713Y1 KR 2020100007649 U KR2020100007649 U KR 2020100007649U KR 20100007649 U KR20100007649 U KR 20100007649U KR 200459713 Y1 KR200459713 Y1 KR 200459713Y1
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KR
South Korea
Prior art keywords
main
sub
sound
conversion unit
signal
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Application number
KR2020100007649U
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Korean (ko)
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KR20120000753U (en
Inventor
최길수
Original Assignee
아이폰 일렉트로닉스 엘티디
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to KR2020100007649U priority Critical patent/KR200459713Y1/en
Priority to PCT/KR2011/005284 priority patent/WO2012011711A2/en
Priority to JP2013512550A priority patent/JP2013531936A/en
Publication of KR20120000753U publication Critical patent/KR20120000753U/en
Application granted granted Critical
Publication of KR200459713Y1 publication Critical patent/KR200459713Y1/en

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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

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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)
  • Circuit For Audible Band Transducer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

The present invention converts an audio signal into a sound and is radiated, the main sound conversion unit having a main air control hole, and is disposed on the other side so as to face the main sound conversion unit spaced apart by a predetermined interval, electrically connected to the same audio A sound is emitted by the signal, the main sound conversion unit having a sub air control hole on one surface thereof, and the main sound conversion unit so that the sound signal of the sub sound conversion unit is radiated with the same signal as the sound signal of the main sound conversion unit; A sound control unit formed between the sub sound conversion units, 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, and the sound control unit Compensating for the sound signal so that the sound signal is radiated to the radiation space; The sound signal emitted from the main sound conversion unit, and the sound signal emitted from the sub sound conversion unit through the main and sub air control hole to adjust the sound signal along the ventilation, one side in the housing formed integrally The acoustic signal of the main acoustic conversion unit and the sub-sound conversion unit disposed in the control is in the same space is radiated to the outside through the radiation space electro-acoustic transducer

Description

Electro-acoustic transducer {ELECTRO-ACOUSTIC TRANSDUCER}

The present invention further includes an auxiliary acoustic conversion unit, and accommodates the main acoustic conversion unit and the auxiliary acoustic conversion unit in one housing, and relates to an electro-acoustic transducer for realizing a clearer, higher resolution sound quality by compensating for an acoustic signal.

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. In the case of low sound, the wavelength is long, so the unit can generate + sound pressure and-sound pressure at the same position. Do. 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.

In addition, 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 response characteristics by configuring the outer housing in a sealed type, unlike the structure that the port is installed in a certain portion of the conventional housing to send ultra low sound to the place.

In addition, the present invention has an object of further comprising an auxiliary acoustic conversion unit to compensate for the degradation of the acoustic signal by the loss of crush, piece vibration, etc. during the vibration of the diaphragm of the conventional electro-acoustic transducer.

In addition, the present invention has an object to form a sound control unit between the main sound converting unit and the sub sound converting unit so that the sound signal when the vibration of the diaphragm to adjust the sound signal along the air passage in the air control hole.

In addition, the present invention is because the main acoustic conversion unit and the sub-acoustic conversion unit is integrally housed in the housing and vibrates with the same sound signal to emit a clear sound signal, there is an object to implement a high quality sound.

Electro-acoustic transducer according to the present invention is to convert the audio signal into a sound is radiated, the main sound conversion unit having 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. The sound signal emitted from the main sound converting unit and the sound signal emitted from the sub sound converting unit through the main and sub air control holes to adjust the sound signal along the air passage, and integrally formed 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.

In the present invention, the main sound 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 magnetic circuit formed and controlled by the main yoke and the main magnet; 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; And a main substrate disposed on the main nonwoven fabric to connect the audio signal to the main voice coil.

In the present invention, 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.

In the present invention, 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.

According to the present invention, unlike a structure in which a port is installed at a predetermined portion of a conventional housing and the ultra low sound is emitted there, the external housing has an effect of improving the instantaneous response characteristics by configuring the sealed housing.

In addition, the present invention has an effect for compensating for the degradation of the sound signal by providing a sub-acoustic conversion unit, the loss of crushing, piece vibration, etc. occurs when vibrating the diaphragm of the conventional electro-acoustic transducer,

In addition, the present invention has the 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 to adjust the sound signal along the air ventilation hole in the air control hole.

In addition, 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.

1 is a perspective view of an electroacoustic transducer according to an embodiment of the present invention.
2 is an exploded perspective view of an electroacoustic transducer according to an embodiment of the present invention.
3 is a cross-sectional view of an electroacoustic transducer according to an embodiment of the present invention.
4 is a graph of an acoustic signal frequency according to an embodiment of the present invention.

The present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as 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.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, an embodiment of an electroacoustic transducer according to the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals and duplicated thereto. The description will be omitted.

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.

First of all, 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.

Subsequently, the present invention will be described in detail as an electro-acoustic transducer for converting an audio signal into a sound, and in one housing 100, a main sound conversion unit 10 is provided on one side and a sub sound conversion unit 20 on the other side. In addition, 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.

In other words, 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.

First, 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).

Subsequently, 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 to generate magnetic force, and the sub magnet 21 is connected to 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. ), A sub support ring 24 disposed to support the sub yoke 22, a sub nonwoven fabric 26 disposed above the sub yoke 22 to adjust the amount of air in the sub air adjusting hole 27 according to the ventilation, and a sub nonwoven fabric ( 26) a sub-voice coil 23 disposed above the audio signal. ) Is connected to the sub substrate 25.

As shown in FIG. 3, 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. .

On one surface of the main sound converting unit 10, 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.

In addition, 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.

In addition, when the housing 100 is described in detail, 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.

When the main and sub diaphragms 18 and 28 vibrate forward, the area behind the main and sub diaphragms 18 and 28 increases and outside air enters the unit through the main and sub air adjusting holes 17 and 27. On the contrary, when the main and sub diaphragms 18 and 28 vibrate backwards, the area inside the main and sub diaphragms 18 and 28 becomes smaller while the air inside the main and sub air diaphragm holes 17, It is pushed out through 27).

Thus, 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.

As described above, since the main sound converting unit 10 and the sub sound converting unit 20 vibrate with the same sound signal, they have been described as a whole.

 4 is a graph of an acoustic signal frequency according to an embodiment of the present invention.

To further describe the sound control unit 30, 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.

In addition, by designing the size of the sound control unit 30 to be larger or smaller, the frequency graph characteristics can be increased or decreased, thereby making the desired frequency graph.

Although described above with reference to a preferred embodiment of the present invention, those of ordinary skill in the art that the present invention various within the scope without departing from the spirit and scope of the present invention described in the claims It will be understood that modifications and changes can be made.

Many embodiments other than the above-described embodiments are within the claims of the present invention.

10: main sound conversion unit 20: sub sound conversion unit
30: sound control unit 40: radiation space
11: main magnet 12: main yoke
13: Main voice coil 14: Main support ring
15: main board 16: main nonwoven fabric
17: main air control hole 18: main diaphragm
21: sub magnet 22: sub yoke
23: Sub voice coil 24: Sub support ring
25: sub substrate 26: sub nonwoven fabric
27: sub air adjusting hole 28: sub diaphragm

Claims (4)

A main sound 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; And
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 and having a radiation space on one surface to radiate the sound to the outside.
The sound control unit compensates the sound signal so that the sound signal is radiated to the radiation space,
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,
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. The method of claim 1,
The main sound conversion unit
A main magnet generating magnetic force;
A main yoke connected to the main magnet and circulating a magnetic force generated from the main magnet to form a magnetic field;
A main magnetic circuit formed and controlled by the main yoke and the main magnet;
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 above the main yoke to adjust an amount of air in the main air adjusting hole according to ventilation;
An electroacoustic transducer disposed on the main nonwoven fabric and configured to connect the audio signal to the main voice coil The method of claim 1,
The sub sound conversion unit
A sub magnet for generating 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 yoke to adjust an air amount in the sub air control hole according to the ventilation;
And a sub substrate disposed on the sub nonwoven fabric to connect the audio signal to the sub voice coil. The method of claim 1,
The sound control unit has an electric acoustic transducer having a sealed structure for sealing from the outside
KR2020100007649U 2010-07-21 2010-07-21 Electro-acoustic transducer KR200459713Y1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR2020100007649U KR200459713Y1 (en) 2010-07-21 2010-07-21 Electro-acoustic transducer
PCT/KR2011/005284 WO2012011711A2 (en) 2010-07-21 2011-07-19 Electro-acoustic transducer
JP2013512550A JP2013531936A (en) 2010-07-21 2011-07-19 Electroacoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020100007649U KR200459713Y1 (en) 2010-07-21 2010-07-21 Electro-acoustic transducer

Publications (2)

Publication Number Publication Date
KR20120000753U KR20120000753U (en) 2012-02-02
KR200459713Y1 true KR200459713Y1 (en) 2012-04-12

Family

ID=45497280

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020100007649U KR200459713Y1 (en) 2010-07-21 2010-07-21 Electro-acoustic transducer

Country Status (3)

Country Link
JP (1) JP2013531936A (en)
KR (1) KR200459713Y1 (en)
WO (1) WO2012011711A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09307996A (en) * 1996-05-15 1997-11-28 Megasera:Kk Piezoelectric speaker
KR20040052450A (en) * 2000-12-26 2004-06-23 안데르스 사그렌 Concentric co-planar multiband electro-acoustic converter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09307996A (en) * 1996-05-15 1997-11-28 Megasera:Kk Piezoelectric speaker
KR20040052450A (en) * 2000-12-26 2004-06-23 안데르스 사그렌 Concentric co-planar multiband electro-acoustic converter

Also Published As

Publication number Publication date
WO2012011711A3 (en) 2012-03-15
KR20120000753U (en) 2012-02-02
WO2012011711A2 (en) 2012-01-26
JP2013531936A (en) 2013-08-08

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