WO2013172575A1 - Dispositif de conversion de son - Google Patents

Dispositif de conversion de son Download PDF

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Publication number
WO2013172575A1
WO2013172575A1 PCT/KR2013/003726 KR2013003726W WO2013172575A1 WO 2013172575 A1 WO2013172575 A1 WO 2013172575A1 KR 2013003726 W KR2013003726 W KR 2013003726W WO 2013172575 A1 WO2013172575 A1 WO 2013172575A1
Authority
WO
WIPO (PCT)
Prior art keywords
conversion unit
energy
energy conversion
conversion device
acoustic
Prior art date
Application number
PCT/KR2013/003726
Other languages
English (en)
Korean (ko)
Inventor
김지훈
권중학
Original Assignee
주식회사 이엠텍
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.)
Filing date
Publication date
Application filed by 주식회사 이엠텍 filed Critical 주식회사 이엠텍
Publication of WO2013172575A1 publication Critical patent/WO2013172575A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Definitions

  • the present invention relates to an acoustic transducer. More particularly, the present invention relates to an acoustic transducer using a magnetic field (magnetic field) generated by converting electrical energy into magnetic energy.
  • a magnetic field magnetic field
  • the number of parts provided such as a frame, a yoke, a permanent magnet, a diaphragm, a voice coil, and a protector is large, and thus there are many assembling processes and a factor that affects acoustic characteristics due to a large deviation caused by assembly. many.
  • the solenoid type acoustic transducer using the solenoid method has a disadvantage that the core of the solenoid causes cogging torque to the permanent magnet or the electromagnet.
  • the present invention provides an acoustic transducer using a magnetic field (magnetic field) generated by converting electrical energy into magnetic energy.
  • the present invention provides an acoustic transducer that causes vibration by an interaction between a magnetic force generated by applying a DC voltage using an energy converter and a magnetic force generated by applying a voice signal.
  • the present invention provides a sound conversion apparatus that can adjust the degree of vibration of the diaphragm by varying the intensity of the magnetic field (magnetic field) in the space where the energy conversion element for forming a magnetic field corresponding to the sound signal (voice signal) is located. .
  • the present invention is to increase the amount of vibration of the diaphragm by applying the acoustic signal applied to the energy conversion element forming a magnetic field corresponding to the acoustic signal (voice signal) to the energy conversion unit forming a magnetic field by applying a direct current voltage. It provides a sound transducer that can be.
  • the present invention is applied to the energy conversion unit to form a magnetic field by applying a direct current voltage to the characteristic sound signal, to provide an acoustic conversion device to compensate for the abnormal vibration characteristics of the diaphragm.
  • the acoustic conversion device is a first energy conversion unit for applying a DC voltage to form a magnetic force up or down in a predetermined space, and a second energy conversion unit located in a predetermined space and receiving a voice signal to form a magnetic force, And a diaphragm attached to the second energy converter and vibrating according to the movement of the second energy converter.
  • the diaphragm vibrates in the vertical direction by the interaction between the magnetic force of the first energy conversion unit and the magnetic force of the second energy conversion unit.
  • the acoustic transducer is preferably provided with a power supply for supplying a DC voltage having a different size to the magnetic field circuit.
  • the first energy converter additionally receives a voice signal applied to the second energy converter.
  • the first energy conversion unit preferably receives an additional characteristic voice signal.
  • the acoustic conversion device preferably includes a signal generator for generating a characteristic voice signal and applying it to the first energy converter.
  • a portion of the first energy conversion unit is preferably fixed to the frame of the acoustic conversion device.
  • the first energy conversion unit may include an electromagnet mounted on at least one of upper and lower yokes and upper and lower yokes for forming a predetermined space and positioning the diaphragm in the predetermined space.
  • the second energy conversion part includes an energization pattern through which a voice signal can flow on the polymer film.
  • the first energy conversion unit may include an electromagnet on one side of the predetermined space, and a ferromagnetic metal core or permanent magnet on the other side of the predetermined space.
  • a suspension for preventing abnormal vibration of the diaphragm it is preferable to further include; a suspension for preventing abnormal vibration of the diaphragm.
  • a suspension is formed to prevent abnormal vibration of the diaphragm, the conduction pattern for transmitting the voice signal to the second energy conversion unit.
  • the second energy conversion unit and the suspension are preferably formed integrally.
  • the acoustic transducer provided by the present invention can reduce the number of parts by applying a solenoid method, thereby simplifying the assembly process, and reducing the deviation between products generated during assembly.
  • the acoustic transducer provided by the present invention is applied to the solenoid method, but instead of winding the wire on the core to form a conduction pattern on the polymer film can remove the cogging torque between the first energy conversion unit and the second energy conversion unit. have.
  • the acoustic conversion device provided by the present invention can maximize the attraction between the first energy conversion unit and the second energy conversion unit by configuring a closed loop type magnetic field.
  • the present invention has the effect of controlling the vibration degree of the diaphragm by varying the intensity of the magnetic field (magnetic field) in the space where the energy conversion element for forming a magnetic field corresponding to the acoustic signal (voice signal) is located.
  • the present invention is to increase the amount of vibration of the diaphragm by applying the acoustic signal applied to the energy conversion element forming a magnetic field corresponding to the acoustic signal (voice signal) to the energy conversion unit forming a magnetic field by applying a direct current voltage. It can be effective.
  • the present invention is applied to the energy conversion unit to form a magnetic field by applying a direct current voltage to the characteristic acoustic signal, there is an effect of supplementing the abnormal vibration characteristics of the diaphragm.
  • FIG. 1 is a perspective view of a cross section of an acoustic transducer according to a first embodiment of the present invention
  • FIG. 2 is an exploded perspective view of an acoustic transducer according to a first embodiment of the present invention
  • FIG. 3 is a schematic diagram of a magnetic field circuit according to a second embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a magnetic field circuit according to a third embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a magnetic field circuit according to a fourth embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a magnetic field circuit according to a fifth embodiment of the present invention.
  • FIG. 7 is a view illustrating a second energy conversion unit included in the acoustic conversion device according to the first embodiment of the present invention.
  • FIG. 8 is a perspective view of an acoustic transducer according to a first embodiment of the present invention.
  • 9 and 10 are circuit configuration diagrams for applying a DC voltage to a first energy conversion unit
  • 11 and 12 are circuit configuration diagrams for applying a speech signal / characteristic speech signal to a first energy conversion section.
  • FIG. 1 is a perspective view of a cross section of an acoustic transducer according to a first embodiment of the present invention
  • FIG. 2 is an exploded perspective view of the acoustic transducer according to the first embodiment of the present invention.
  • the acoustic transducer includes a frame 100, and a lower yoke 210 is coupled to the frame 100.
  • the first electromagnet 310 is mounted on the upper surface (upper side) of the lower yoke 210.
  • an upper yoke 220 and a second electromagnet 320 are formed on the bottom (lower side) of the upper yoke 220. That is, the structure of the magnetic field (referred to as 'first energy conversion unit' in the present embodiment) is from the lower yoke 210, the first electromagnet 310, the second electromagnet 320, and the upper yoke 220 in order. Is placed. At this time, the magnetic force formed in the space between the first electromagnet 310 and the second electromagnet 320 is configured to be upward or downward.
  • the first electromagnet 310 is composed of a metal core 312, which is a ferromagnetic material, and a coil part 314 wound around the metal core 312, and the second electromagnet 320 is formed of a metal core 322, which is a ferromagnetic material. , A coil part 324 wound around the metal core 322.
  • the coil parts 314 and 324 are wound in a direction such that the magnetic force direction is formed upward or downward.
  • the first energy conversion unit constitutes a closed loop type magnetic field.
  • the first energy conversion unit may be implemented in various magnetic field structures, as in the second to fifth embodiments below.
  • the first electromagnet 310 and the second electromagnet 320 are spaced apart to form a predetermined space, and the second energy conversion unit 400 and the diaphragm forming a magnetic force by a voice signal (sound signal) in the predetermined space. 500) is located.
  • the second energy conversion unit 400 is attached to the center of the diaphragm 500, and the diaphragm 500 is formed, for example, in a ring shape as a whole and in a dome shape protruding upward.
  • the second energy conversion unit 400 has a conductive pattern 420 is formed on the polymer film 410 that can form a magnetic field by a voice signal or electricity in a spiral like a solenoid.
  • the suspension 600 may be attached to guide the vibration of the diaphragm 400 and limit abnormal vibrations such as divided vibration or partial vibration.
  • the suspension 600 connects the outer circumferential portion seated on the frame 100 and the inner circumference portion to which the second energy conversion portion 400 and the diaphragm 500 are attached, the outer circumference portion and the inner circumference portion, and the image of the second energy conversion portion 400. And a connection portion that suppresses unbalanced vibration during lower vibration.
  • the frame 100 is formed with a terminal 700 which is a part that receives an electrical signal (voice signal) from the outside.
  • FIG. 3 is a diagram illustrating a magnetic field circuit according to a second embodiment of the present invention.
  • a lower magnet 310-1 eg, a permanent magnet
  • a second electromagnet 320 is installed on the upper yoke 220.
  • the second energy conversion unit 400 and the diaphragm 500 are installed between the lower magnet 310-1 and the second electromagnet 320.
  • the edges of the lower yoke 210 and the upper yoke 220 are bent and engaged with each other, such that the edge of the diaphragm 500 is fixed between the lower yoke 210 and the upper yoke 220.
  • the lower magnet 310-1 is magnetized so that the magnetic force becomes downward.
  • the magnetization direction is an example, and the lower magnet 310-1 may be magnetized so that all magnetic forces are directed upward.
  • a suspension (not shown) may be attached to the lower portion of the diaphragm 500 to the lower portion of the diaphragm.
  • FIG. 4 is a diagram illustrating a magnetic field circuit according to a third embodiment of the present invention.
  • the first electromagnet 310 is installed on the lower yoke 210 and the second electromagnet 320 is installed on the upper yoke 220.
  • the suspension is not provided in the lower portion of the diaphragm 500 in the lower portion of the diaphragm.
  • FIG. 5 is a diagram illustrating a magnetic field circuit according to a fourth embodiment of the present invention.
  • the first electromagnet 310 is installed on the lower yoke 210, and the upper yoke 220 is installed without the electromagnet at the top.
  • the magnetic force direction of the first electromagnet 310 is provided to face upward or downward.
  • the electromagnet is installed only at the bottom, but the electromagnet may be installed only at the top.
  • FIG. 6 is a schematic diagram of a magnetic field circuit according to a fifth embodiment of the present invention.
  • the first electromagnet 310 is installed on the lower yoke 210.
  • the upper yoke 220 has been replaced with a core 230 made of a magnetic (ferromagnetic) metal instead of a magnet or an electromagnet.
  • the magnetic force direction of the first electromagnet 310 is installed to face upward or downward.
  • the core is installed at the top of the electromagnet at the bottom, on the contrary, the core is installed at the bottom and the electromagnet may be installed at the top.
  • FIG. 7 is a diagram illustrating a second energy conversion unit included in the acoustic conversion device according to the first embodiment of the present invention.
  • the second energy conversion unit 400 included in the acoustic conversion device according to the first embodiment of the present invention is made of a polymer film 410 and is formed by attaching a conduction pattern 420 on the polymer film 410. .
  • the energization pattern 420 is located in a magnetic field (magnetic field) in which magnetic force by the first and second electromagnets 310 and 320 or the magnet 310-1 of the acoustic transducer is directed upward or downward.
  • the energization pattern 420 is formed in a spiral pattern as a whole so as to form a magnetic flux like a solenoid.
  • the direction of the magnetic flux is changed according to the direction of the current flowing through the energization pattern 420 and accordingly the attraction force between the first and second electromagnets 310 and 320 or the magnet 310-1 installed on the yokes 210 and 220.
  • the repulsive force acts to cause the second energy conversion unit 400 to vibrate.
  • the conduction pattern 420 may be formed only on the upper or lower surface of the polymer film 410, but preferably, both of the upper and lower surfaces of the polymer film 410 are preferable to improve acoustic characteristics.
  • the conduction pattern 420 formed on the upper and lower surfaces is formed so that magnetic force in the same direction can be formed when current flows.
  • the second energy conversion unit 400 is attached to the diaphragm 500 as described above, it is preferable that the suspension 600 is provided to prevent abnormal vibration, such as divided vibration or partial vibration of the diaphragm 500. Do.
  • the suspension 600 is integrally formed.
  • Suspension 600 is a mounting portion 610 that is seated on the frame, such as the suspension 600 provided in the general acoustic transducer, the inner peripheral portion 620 to which the diaphragm 500 is attached, the mounting portion 610 and the inner peripheral portion ( 620 is provided with a connecting portion 630 for holding the vibration.
  • the suspension 600 is formed with a conduction pattern 660 that can transmit an external electrical signal to the conduction pattern 420.
  • a soldering part 640 is formed at a corner of the seating part 610 of the suspension 600 to connect with an external power source such as a terminal 700, and an electricity supply pattern connecting from the soldering part 640 to the electricity conducting pattern 420. 660 is formed.
  • the soldering portion 640 is formed with a through hole 650 to apply an electrical signal (voice signal) to the conduction pattern 420 formed on the lower surface.
  • the current flows from the soldering portion 640 formed on the upper surface to the conductive pattern 660 formed on the upper surface through the conductive pattern 660 formed on the upper surface, and the conductive pattern 420 formed on the lower surface and the conductive pattern 660 formed on the lower surface. After passing through the soldering portion 640 formed on the lower surface. Since the second energy conversion unit 400 and the suspension 600 are integrally formed, the energization pattern 420 and the energization pattern 660 may also be integrally formed.
  • a conductive pattern 660 is formed on the suspension 600 in addition to connecting the conductive pattern 420 from the soldering part 640.
  • the conduction pattern 660 formed on the outer circumference increases the rigidity of the polymer film 410 to facilitate the fixing of the suspension 600, and the conduction pattern 660 formed around the inner circumference 420 is attached to the diaphragm 500.
  • the conductive pattern 660 formed on the connecting portion 630 is actually used for energizing, matching the rigidity between the connecting portion 630 located in the symmetrical position, and also increases the rigidity of the connecting portion 630 itself It is formed for.
  • the second energy converter 400 is integrally formed with the suspension 600, but the second energy converter 400 and the suspension 600 may be separately manufactured and then attached.
  • the soldering part for electrically connecting the conduction pattern 420 to the inner circumferential portion 420 of the suspension 600 is preferably provided.
  • the lower yoke 210 includes a bottom surface 211 to which the first electromagnet 310 is attached, and a side wall 212 formed by bending from the bottom surface 211. .
  • the upper part of the deletion part 214 covers the upper part of the deletion part 214 and the fixing part 110 covers the lower yoke. It is possible to fix the 210 to the frame (100). Meanwhile, it is advantageous in terms of space utilization to attach the terminal 700 to the fixing part 110 of the frame 100.
  • the lower yoke 210 and the terminal 700 are preferably insert-molded when the frame 100 is injection molded, so that the number of assembling processes may be reduced since the insert injection does not have to be carried out.
  • the terminal 700 includes a soldering unit 640 of the suspension 600, an upper surface 720 to be soldered, and a lower surface 730 to which a voice signal is applied.
  • the upper surface 720 is exposed to the upper portion of the frame 100, and the lower surface 730 is exposed to the lower portion of the frame.
  • the upper yoke 220 also includes an upper surface 221 to which the second electromagnet 320 is attached, and a side wall 222 formed by bending from the upper surface 221.
  • the upper yoke 220 may take the role of the protector.
  • the upper surface 221 of the upper yoke 220 is formed with a sound emitting hole 223 for emitting sound.
  • the acoustic emission hole 223 is formed on the outer side, that is, the corner portion of the center portion to which the second electromagnet 320 is attached on the upper surface 221 so that the second electromagnet 320 is not exposed. In this case, the acoustic emission holes 223 should be formed at a predetermined interval from the side wall 222.
  • a ventilation hole through which external air can be introduced must be formed in the lower portion.
  • a ventilation hole 213 is formed in the bottom surface 211 of the lower yoke 210.
  • the ventilation hole 213 should also be formed at the outer side of the bottom surface 211 instead of the central portion to which the first electromagnet 310 is attached. If the bottom surface 211 of the lower yoke 210 is covered by the frame 100 and is not exposed to the outside, a ventilation hole should also be formed in the frame 100.
  • FIG. 9 and 10 are circuit configuration diagrams for applying a DC voltage to the first energy conversion unit.
  • the acoustic conversion device receives a DC voltage (power), for example, 5V, from the power supply unit 800 of the electric device and supplies the same to the first and second electromagnets 310 and 320.
  • a power supply line PL for power supply is disposed between the power supply 800 and the first and second electromagnets 310 and 320, and the power supply line PL is a lower yoke 220 and an upper yoke 220. In between or through the lower yoke 220 and the upper yoke 220 is electrically connected to the first and second electromagnets (310, 320). Supply of the DC voltage in FIG.
  • first electromagnet 310 and the second electromagnet 320 may be connected in parallel or in series.
  • the coil winding direction of the first electromagnet 310 and the second electromagnet 320 and the parallel / serial connection direction may be modified to maintain the magnetic force direction upward or downward. In the case of such a voltage supply circuit, the magnetic force is kept constant.
  • the acoustic conversion device includes a power supply unit 820 that receives a DC voltage (power), for example, 5V, from the power supply unit 800 of the electric device, and the power supply unit 820.
  • the DC voltage is supplied to the first and second electromagnets 310 and 320 by reducing or boosting the DC voltage supplied to the set voltage level or the voltage level set by a separate input means (not shown).
  • Supply of the DC voltage to the first and second electromagnets 310 and 320 may be controlled by the control of an electrical device, or may be provided with a separate switch (not shown) for supplying and shutting off power.
  • the first electromagnet 310 and the second electromagnet 320 may be connected in parallel or in series.
  • a power supply line PL for power supply is disposed between the power supply unit 820 and the first and second electromagnets 310 and 320, and the power supply line PL is a lower yoke 220 and an upper yoke 220. In between or through the lower yoke 220 and the upper yoke 220 is electrically connected to the first and second electromagnets (310, 320). In the case of such a power supply / control circuit, there is an advantage of changing the strength of the magnetic force affecting the second energy conversion unit 400.
  • 11 and 12 are circuit configuration diagrams for applying an audio signal / characteristic audio signal to the first energy conversion unit.
  • the sound conversion apparatus receives a voice signal from the voice signal processing unit 900 of the electric device through the voice signal line SL and applies it to the second energy conversion unit 400. Is applied to the first or second electromagnets 310 and 320 together.
  • the magnetic field generated by the first energy converter also varies in response to the change in the audio signal, and the magnetic force also changes.
  • the amount of vibration transmitted to the diaphragm 500 may be amplified by the interaction between the magnetic forces by the second energy conversion unit 400.
  • the sound conversion device receives a voice signal from the voice signal processing unit 900 of the electric device, applies the voice signal to the second energy conversion unit 400, and generates a characteristic voice signal ( 920 is additionally provided, and the characteristic voice signal generated by the signal generator 920 is applied to the first or second electromagnets 310 and 320.
  • the characteristic voice signal generated by the signal generator 920 corresponds to a signal for canceling the abnormal vibration characteristic by the physical property of the diaphragm 500.
  • the application of the characteristic voice signal has an effect of compensating for the abnormal vibration characteristic of the diaphragm 500.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

La présente invention concerne un dispositif de conversion de son, et plus spécifiquement, un dispositif de conversion de son utilisant un champ magnétique généré par conversion d'énergie électrique en énergie magnétique. Le dispositif de conversion de son selon la présente invention comprend : une première unité de conversion d'énergie qui reçoit une tension de courant continu et forme une force magnétique dans une direction vers le haut ou vers le bas à l'intérieur d'un espace prédéterminé ; une seconde unité de conversion d'énergie qui est disposée dans l'espace prédéterminé, reçoit un signal vocal, et forme une force magnétique ; et une plaque vibrante qui est fixée à la seconde unité de conversion d'énergie et vibre selon un mouvement de la seconde unité de conversion d'énergie.
PCT/KR2013/003726 2012-05-18 2013-04-30 Dispositif de conversion de son WO2013172575A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120052952A KR101351892B1 (ko) 2012-05-18 2012-05-18 음향변환장치
KR10-2012-0052952 2012-05-18

Publications (1)

Publication Number Publication Date
WO2013172575A1 true WO2013172575A1 (fr) 2013-11-21

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PCT/KR2013/003726 WO2013172575A1 (fr) 2012-05-18 2013-04-30 Dispositif de conversion de son

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KR (1) KR101351892B1 (fr)
WO (1) WO2013172575A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107534811A (zh) * 2015-07-22 2018-01-02 谷歌有限责任公司 用于基于单层的高性能电磁扬声器的装置和方法
CN107613442A (zh) * 2017-07-28 2018-01-19 苏州逸巛声学科技有限公司 一种受话器及其装配方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10999682B2 (en) 2017-10-25 2021-05-04 Ps Audio Design Oy Transducer arrangement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100547357B1 (ko) * 2004-03-30 2006-01-26 삼성전기주식회사 휴대단말기용 스피커 및 그 제조방법
KR100687208B1 (ko) * 2006-01-17 2007-02-26 주식회사 벨류텔 음향 및 진동발생용 마이크로스피커
KR100930537B1 (ko) * 2009-09-03 2009-12-09 주식회사 블루콤 고출력 진동판 결합 구조를 갖춘 마이크로 스피커
KR20110051642A (ko) * 2009-11-10 2011-05-18 주식회사 비에스이 리본형 스피커
KR20110081460A (ko) * 2010-01-08 2011-07-14 주식회사 비에스이 사각 다기능 마이크로 스피커

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3349647B2 (ja) * 1997-03-31 2002-11-25 日本碍子株式会社 スピーカ
KR100963559B1 (ko) * 2009-07-20 2010-06-15 범진아이엔디(주) 슬림형 스피커

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100547357B1 (ko) * 2004-03-30 2006-01-26 삼성전기주식회사 휴대단말기용 스피커 및 그 제조방법
KR100687208B1 (ko) * 2006-01-17 2007-02-26 주식회사 벨류텔 음향 및 진동발생용 마이크로스피커
KR100930537B1 (ko) * 2009-09-03 2009-12-09 주식회사 블루콤 고출력 진동판 결합 구조를 갖춘 마이크로 스피커
KR20110051642A (ko) * 2009-11-10 2011-05-18 주식회사 비에스이 리본형 스피커
KR20110081460A (ko) * 2010-01-08 2011-07-14 주식회사 비에스이 사각 다기능 마이크로 스피커

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107534811A (zh) * 2015-07-22 2018-01-02 谷歌有限责任公司 用于基于单层的高性能电磁扬声器的装置和方法
EP3326386A4 (fr) * 2015-07-22 2019-03-27 Google LLC Dispositifs et procédés pour un haut-parleur électromagnétique à hautes performances faisant appel à des monocouches
CN107534811B (zh) * 2015-07-22 2020-08-11 谷歌有限责任公司 用于基于单层的高性能电磁扬声器的装置
CN107613442A (zh) * 2017-07-28 2018-01-19 苏州逸巛声学科技有限公司 一种受话器及其装配方法
CN107613442B (zh) * 2017-07-28 2024-05-28 苏州逸巛科技有限公司 一种受话器及其装配方法

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KR101351892B1 (ko) 2014-01-22
KR20130128849A (ko) 2013-11-27

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