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WO2013172575A1 - Sound conversion device - Google Patents

Sound conversion device 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
acoustic
electromagnet
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2013/003726
Other languages
French (fr)
Korean (ko)
Inventor
김지훈
권중학
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EM Tech Co Ltd
Original Assignee
EM Tech Co Ltd
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 EM Tech Co Ltd filed Critical EM Tech Co Ltd
Publication of WO2013172575A1 publication Critical patent/WO2013172575A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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)

Description

음향변환장치Sound converter

본 발명은 음향변환장치에 관한 것이다. 더욱 상세하게는, 전기 에너지를 자기에너지로 변환하여 생성된 자기장(자계)을 이용한 음향변환장치에 관한 것이다.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.

종래의 다이나믹 방식을 이용한 음향변화장치는 프레임, 요크, 영구자석, 진동판, 보이스 코일, 프로텍터 등 구비되는 부품의 수가 많고 그에 따라 조립 공정이 많고 조립에 의한 편차가 커져 음향 특성에 영향을 주는 요소가 많다. In the conventional sound changing apparatus using dynamic methods, 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.

또한, 솔레노이드 방식을 이용한 솔레노이드형 음향변환장치는 솔레노이드의 코어가 영구자석 또는 전자석에 코깅 토크를 유발한다는 단점이 있었다.In addition, 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.

본 발명은 전기 에너지를 자기 에너지로 변환하여 생성된 자기장(자계)을 이용한 음향변환장치를 제공한다.The present invention provides an acoustic transducer using a magnetic field (magnetic field) generated by converting electrical energy into magnetic energy.

또한, 본 발명은 직류 전압을 인가받아 에너지 변환부를 이용하여 생성된 자기력과, 음성 신호를 인가받아 생성된 자기력 간의 상호작용으로 진동을 야기하는 음향변환장치를 제공한다. In addition, 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.

또한, 본 발명은 음향신호(음성신호)에 대응하는 자기장을 형성하는 에너지 변환소자가 위치되는 공간 내의 자기장(자계)의 세기를 가변시킴으로써, 진동판의 진동 정도를 조절할 수 있는 음향변환장치를 제공한다. In addition, 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. .

또한, 본 발명은 음향신호(음성신호)에 대응하는 자기장을 형성하는 에너지 변환소자에 인가되는 음향 신호를, 직류 전압을 인가받아 자기장을 형성하는 에너지 변환부에도 인가하여 진동판의 진동량을 증대시킬 수 있는 음향변환장치를 제공한다. In addition, 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.

또한, 본 발명은 특성 음향 신호를 직류 전압을 인가받아 자기장을 형성하는 에너지 변환부에 인가하여, 진동판의 이상 진동 특성을 보완하는 음향변환장치를 제공한다.In addition, 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.

본 발명인 음향변환장치는 직류 전압을 인가받아 일정 공간 내에 자기력을 상방 또는 하방으로 형성하는 제1에너지 변환부와, 일정 공간 내에 위치하며, 음성 신호를 인가받아 자기력을 형성하는 제2에너지 변환부, 및 제2에너지 변환부에 부착되어 제2에너지 변환부의 움직임에 따라 진동하는 진동판을 포함한다.The acoustic conversion device according to the present invention 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.

또한, 제1에너지 변환부의 자기력과, 제2에너지 변환부의 자기력의 상호 작용에 의해 진동판이 상하 방향으로 진동하는 것이 바람직하다.In addition, it is preferable that 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.

또한, 음향변환장치는 자계 회로에 서로 다른 크기를 지닌 직류 전압을 공급하는 전원 공급부를 구비하는 것이 바람직하다.In addition, the acoustic transducer is preferably provided with a power supply for supplying a DC voltage having a different size to the magnetic field circuit.

또한, 제1에너지 변환부는 제2에너지 변환부에 인가되는 음성 신호를 추가적으로 인가받는 것이 바람직하다.In addition, it is preferable that the first energy converter additionally receives a voice signal applied to the second energy converter.

또한, 제1에너지 변환부는 특성 음성 신호를 추가적으로 인가받는 것이 바람직하다.In addition, the first energy conversion unit preferably receives an additional characteristic voice signal.

또한, 음향변환장치는 특성 음성 신호를 생성하여 제1에너지 변환부에 인가하는 신호 생성부를 구비하는 것이 바람직하다.In addition, the acoustic conversion device preferably includes a signal generator for generating a characteristic voice signal and applying it to the first energy converter.

또한, 제1에너지 변환부의 일부는 음향변환장치의 프레임에 고정된 것이 바람직하다.In addition, a portion of the first energy conversion unit is preferably fixed to the frame of the acoustic conversion device.

또한, 제1에너지 변환부는 일정 공간을 형성하고, 일정 공간 내에 진동판을 위치시키는 상부 요크 및 하부 요크와, 상부 요크의 저면 또는 하부 요크의 상면 중의 적어도 한 면 이상에 장착되는 전자석을 포함하는 것이 바람직하다.In addition, 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. Do.

또한, 제2에너지 변환부는 고분자 필름 상에 음성 신호가 흐를 수 있는 통전 패턴을 구비하는 것이 바람직하다. In addition, it is preferable that the second energy conversion part includes an energization pattern through which a voice signal can flow on the polymer film.

또한, 제1에너지 변환부는 일정 공간의 일측에는 전자석을 구비하고, 일정 공간의 마주하는 타측에는 강자성체 금속 코어 또는 영구자석을 구비하는 것이 바람직하다.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.

또한, 진동판의 이상 진동을 방지하는 서스펜션;을 더 포함하는 것이 바람직하다.In addition, it is preferable to further include; a suspension for preventing abnormal vibration of the diaphragm.

또한, 진동판의 이상 진동을 방지하며, 제2에너지 변환부로 음성 신호를 전달하는 통전 패턴이 형성된 서스펜션;을 더 포함하는 것이 바람직하다.In addition, it is preferable to further include; 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.

또한, 제2에너지 변환부와 서스펜션은 일체로 형성되는 것이 바람직하다.In addition, the second energy conversion unit and the suspension are preferably formed integrally.

본 발명이 제공하는 음향변환장치는, 솔레노이드 방식을 응용함으로써 부품 수를 줄일 수 있어 조립 공정을 간소화할 수 있고, 조립 시에 발생하는 제품 간의 편차를 줄일 수 있다.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.

또한 본 발명이 제공하는 음향변환장치는 솔레노이드 방식을 응용하였으나, 코어 상에 전선을 감는 대신 고분자 필름 상에 통전 패턴을 형성함으로써 제1에너지 변환부와 제2에너지 변환부 간의 코깅 토크를 제거할 수 있다. In addition, 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.

또한 본 발명이 제공하는 음향변환장치는 폐루프형 자계를 구성함으로써, 제1에너지 변환부와 제2에너지 변환부 간의 인력을 극대화할 수 있다. In addition, 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.

또한, 본 발명은 음향신호(음성신호)에 대응하는 자기장을 형성하는 에너지 변환소자가 위치되는 공간 내의 자기장(자계)의 세기를 가변시킴으로써, 진동판의 진동 정도를 조절할 수 있는 효과가 있다.In addition, 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.

또한, 본 발명은 음향신호(음성신호)에 대응하는 자기장을 형성하는 에너지 변환소자에 인가되는 음향 신호를, 직류 전압을 인가받아 자기장을 형성하는 에너지 변환부에도 인가하여 진동판의 진동량을 증대시킬 수 있는 효과가 있다.In addition, 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.

또한, 본 발명은 특성 음향 신호를 직류 전압을 인가받아 자기장을 형성하는 에너지 변환부에 인가하여, 진동판의 이상 진동 특성을 보완하는 효과가 있다.In addition, 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.

도 1은 본 발명의 제1 실시예에 따른 음향변환장치의 단면의 사시도, 1 is a perspective view of a cross section of an acoustic transducer according to a first embodiment of the present invention;

도 2는 본 발명의 제1 실시예에 따른 음향변환장치의 분해사시도2 is an exploded perspective view of an acoustic transducer according to a first embodiment of the present invention;

도 3은 본 발명의 제2 실시예에 따른 자계 회로를 도식화한 것,3 is a schematic diagram of a magnetic field circuit according to a second embodiment of the present invention;

도 4는 본 발명의 제3 실시예에 따른 자계 회로를 도식화한 것,4 is a schematic diagram of a magnetic field circuit according to a third embodiment of the present invention;

도 5는 본 발명의 제4 실시예에 따른 자계 회로를 도식화한 것,5 is a schematic diagram of a magnetic field circuit according to a fourth embodiment of the present invention;

도 6은 본 발명의 제5 실시예에 따른 자계 회로를 도식화한 것,6 is a schematic diagram of a magnetic field circuit according to a fifth embodiment of the present invention;

도 7은 본 발명의 제1 실시예에 따른 음향변환장치가 구비하는 제2에너지 변환부를 도시한 도면,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;

도 8은 본 발명의 제1 실시예에 따른 음향변환장치의 사시도,8 is a perspective view of an acoustic transducer according to a first embodiment of the present invention;

도 9 및 도 10은 제1에너지 변환부에 직류 전압을 인가하는 회로 구성도들,9 and 10 are circuit configuration diagrams for applying a DC voltage to a first energy conversion unit;

도 11 및 도 12는 음성 신호/특성 음성 신호를 제1에너지 변환부에 인가하는 회로 구성도들.11 and 12 are circuit configuration diagrams for applying a speech signal / characteristic speech signal to a first energy conversion section.

이하 도면을 참조하여 본 발명을 더욱 상세하게 설명한다. Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 1은 본 발명의 제1 실시예에 따른 음향변환장치의 단면의 사시도, 도 2는 본 발명의 제1 실시예에 따른 음향변환장치의 분해사시도이다. 1 is a perspective view of a cross section of an acoustic transducer according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of the acoustic transducer according to the first embodiment of the present invention.

본 발명의 제1 실시예에 따른 음향변환장치는 프레임(100)을 구비하며, 프레임(100)에 하부 요크(210)가 결합되어 있다. 하부 요크(210)의 상면(상측)에는 제1전자석(310)이 장착된다. 또한 상부에는 상부 요크(220)와, 상부 요크(220)의 저면(하측)에 제2전자석(320)이 형성된다. 즉, 자계의 구조(본 실시예에서는 ‘제1에너지 변환부’로 지칭됨)는 하부로부터 하부 요크(210), 제1전자석(310), 제2전자석(320), 상부 요크(220) 순으로 배치된다. 이때, 제1전자석(310)과 제2전자석(320) 사이의 공간에서 형성되는 자기력 방향이 상방 또는 하방이 되도록 구성된다.The acoustic transducer according to the first embodiment of the present invention 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. In addition, 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.

제1전자석(310)은 강자성체인 금속 코어(312)와, 금속 코어(312)의 주변에 권선된 코일부(314)로 구성되며, 제2전자석(320)은 강자성체인 금속 코어(322)와, 금속 코어(322)의 주변에 권선된 코일부(324)로 구성된다. 코일부(314)와 (324)는 자기력 방향이 상방 또는 하방으로 형성되도록 하는 방향으로 권선된다. 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.

제1전자석(310)과, 제2전자석(320)은 각각 하부 요크(210)와 상부 요크(220)에 부착되므로, 그 사이에 일정 공간이 형성되도록 배치되며, 자기력이 상방 또는 하방으로 형성된다. 예를 들면, 자기력이 하방으로 형성될 경우, 상부 요크(220)에 부착된 제2전자석(320)으로부터의 자기력선은 제1전자석(310)의 상측으로 유도되며, 제1전자석(310)과 하부 요크(210)와 상부 요크(220)를 통하여 다시 제2전자석(320)으로 유도되는 방식으로 자계가 형성된다. 이러한 제1에너지 변환부는 폐루프형 자계를 구성하게 된다. 제1에너지 변환부는 하기의 제2 내지 제5실시예에서와 같이, 다양한 자계 구조로 구현될 수 있다.Since the first electromagnet 310 and the second electromagnet 320 are attached to the lower yoke 210 and the upper yoke 220, respectively, the first electromagnet 310 and the second electromagnet 320 are arranged to form a predetermined space therebetween, and the magnetic force is formed upward or downward. . For example, when the magnetic force is formed downward, the magnetic force line from the second electromagnet 320 attached to the upper yoke 220 is guided to the upper side of the first electromagnet 310, the first electromagnet 310 and the lower A magnetic field is formed through the yoke 210 and the upper yoke 220 to be guided back to the second electromagnet 320. 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.

제1전자석(310)과, 제2전자석(320)은 일정 공간이 형성되도록 이격되고, 그 일정 공간에 음성 신호(음향신호)에 의해 자기력을 형성하는 제2에너지 변환부(400)와 진동판(500)이 위치한다. 진동판(500)의 중앙에 제2에너지 변환부(400)가 부착되며, 진동판(500)은 예를 들면, 전체적으로 링 형상이며, 또한 상방으로 돌출된 돔 형상으로 형성된다. 한편 제2에너지 변환부(400)는 고분자 필름(410) 상에 솔레노이드와 같이 나선형으로 음성 신호 또는 전기에 의해 자기장을 형성할 수 있는 통전 패턴(420)이 형성되어 있다. 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. On the other hand, 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.

또한, 진동판(400)의 진동을 안내하며, 분할진동이나 편진동과 같은 이상 진동을 제한할 수 있도록 서스펜션(600)이 부착될 수 있다. 서스펜션(600)은 프레임(100)에 안착되는 외주부와 제2에너지 변환부(400) 및 진동판(500)이 부착되는 내주부, 외주부와 내주부를 연결하며 제2에너지 변환부(400)의 상, 하 진동시에 불평형 진동을 억제하는 연결부를 구비한다. In addition, 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.

또한, 프레임(100)에는 외부로부터 전기적인 신호(음성 신호)를 받아들이는 부분인 터미널(700)이 형성된다. In addition, the frame 100 is formed with a terminal 700 which is a part that receives an electrical signal (voice signal) from the outside.

도 3은 본 발명의 제2 실시예에 따른 자계 회로를 도식화한 것이다. 하부 요크(210) 상에 제1전자석(310) 대신에 하부 자석(310-1)(예를 들면, 영구 자석)이 설치되고, 상부 요크(220) 상에 제2전자석(320) 설치되며, 하부 자석(310-1)과 제2전자석(320) 사이에 제2에너지 변환부(400)와 진동판(500)이 설치된다. 하부 요크(210)와 상부 요크(220)의 가장자리는 절곡되어 서로 맞물리도록 되어 있어, 진동판(500)의 가장자리가 하부 요크(210)와 상부 요크(220) 사이에서 고정된다. 하부 자석(310-1)은 자기력이 하방으로 되도록 착자되어 있다. 물론 착자 방향은 예시이며, 자기력이 모두 상방을 향하도록 하부 자석(310-1)이 착자되어도 무방하다. 또한, 진동판의 하부에 진동판(500)의 하부에 서스펜션(미도시)이 부착될 수 있다.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) is installed on the lower yoke 210 instead of the first electromagnet 310, and 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. Of course, the magnetization direction is an example, and the lower magnet 310-1 may be magnetized so that all magnetic forces are directed upward. In addition, a suspension (not shown) may be attached to the lower portion of the diaphragm 500 to the lower portion of the diaphragm.

도 4는 본 발명의 제3 실시예에 따른 자계 회로를 도식화한 것이다. 본 발명의 제3 실시예에 따른 자계 회로는, 하부 요크(210) 상에 제1전자석(310)이, 상부 요크(220) 상에 제2전자석(320)이 설치된다. 또한, 제1실시예와 다르게, 진동판의 하부에 진동판(500)의 하부에 서스펜션이 설치되어 있지 않다.4 is a diagram illustrating a magnetic field circuit according to a third embodiment of the present invention. In the magnetic circuit according to the 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. In addition, unlike the first embodiment, the suspension is not provided in the lower portion of the diaphragm 500 in the lower portion of the diaphragm.

도 5은 본 발명의 제4 실시예에 따른 자계 회로를 도식화한 것이다. 본 발명의 제4 실시예에 따른 자계 회로는, 하부 요크(210) 상에 제1전자석(310)이 설치되며, 상부에는 전자석이 설치되지 않고 상부 요크(220)만 설치된다. 제1전자석(310)의 자기력 방향은, 상방 또는 하방을 향하도록 설치된다. 본 발명의 제4 실시예에서는 하부에만 전자석이 설치되었으나, 반대로 상부에만 전자석이 설치될 수도 있다. 5 is a diagram illustrating a magnetic field circuit according to a fourth embodiment of the present invention. In the magnetic field circuit according to the 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. In the fourth embodiment of the present invention, the electromagnet is installed only at the bottom, but the electromagnet may be installed only at the top.

도 6은 본 발명의 제5 실시예에 따른 자계 회로를 도식화한 것이다. 본 발명의 제5 실시예에 따른 자계 회로는, 하부 요크(210) 상에 제1전자석(310)이 설치된다. 상부 요크(220)에는 자석이나 전자석 대신 자성(강자성체)의 금속으로 이루어진 코어(230)로 대체되었다. 역시 제1전자석(310)의 자기력 방향은 상방 또는 하방을 향하도록 설치된다. 본 발명의 제5 실시예에서는 하부에 전자석이 상부에 코어가 설치되었으나, 반대로 하부에 코어가 설치되고 상부에 전자석이 설치될 수도 있다. 6 is a schematic diagram of a magnetic field circuit according to a fifth embodiment of the present invention. In the magnetic field circuit according to the 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. In addition, the magnetic force direction of the first electromagnet 310 is installed to face upward or downward. In the fifth embodiment of the present invention, 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.

도 7은 본 발명의 제1 실시예에 따른 음향변환장치가 구비하는 제2에너지 변환부를 도시한 도면이다. 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.

본 발명의 제1 실시예에 따른 음향변환장치가 구비하는 제2에너지 변환부(400)는 고분자 필름(410)으로 제조되며, 고분자 필름(410) 상에 통전 패턴(420)이 부착되어 형성된다. 통전 패턴(420)은, 음향변환장치의 제1 및 제2전자석(310, 320) 또는 자석(310-1)에 의한 자기력이 상방 또는 하방으로 향하는 자기장(자계) 내에 위치된다. 통전 패턴(420)은, 솔레노이드와 같이 자속을 형성할 수 있도록 전체적으로 나선형의 패턴으로 형성된다. 통전 패턴(420)으로 흐르는 전류의 방향에 따라 자속의 방향이 바뀌게 되며 그에 따라 요크(210, 220) 상에 설치된 제1 및 제2전자석(310, 320) 또는 자석(310-1) 사이에 인력 또는 척력이 작용함으로써 제2에너지 변환부(400)가 진동하게 된다. 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. Alternatively, the repulsive force acts to cause the second energy conversion unit 400 to vibrate.

통전 패턴(420)은 고분자 필름(410)의 상면 또는 하면에만 형성될 수도 있으나, 바람직하게는 상면 및 하면에 모두 형성되는 것이 음향 특성을 향상시키는 데 바람직하다. 상면 및 하면에 형성되는 통전 패턴(420)은 전류가 흐를 때 같은 방향의 자기력이 형성할 수 있도록 형성된다. 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.

또한, 제2에너지 변환부(400)는 앞서 설명한 바와 같이 진동판(500)과 부착되는데, 진동판(500)의 분할 진동이나 편진동과 같은 이상 진동을 방지하기 위해 서스펜션(600)이 구비되는 것이 바람직하다. 도 7에 도시된 제2에너지 변환부(400)는 서스펜션(600)이 일체로 형성되어 있다. 서스펜션(600)은 일반적인 음향변환장치에 구비되는 서스펜션(600)과 같이 프레임에 안착되는 안착부(610), 진동판(500)이 부착되는 내주부(620), 안착부(610)와 내주부(620)를 연결하며 진동을 잡아주는 연결부(630)를 구비한다. In addition, 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. In the second energy conversion unit 400 illustrated in FIG. 7, 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.

한편, 서스펜션(600)에는 외부의 전기적 신호를 통전 패턴(420)으로 전달할 수 있는 통전 패턴(660)이 형성되어 있다. 서스펜션(600)의 안착부(610)의 모서리에 터미널(700)과 같은 외부 전원과 연결할 수 있는 납땜부(640)가 형성되며, 납땜부(640)로부터 통전 패턴(420)까지 연결하는 통전 패턴(660)이 형성된다. 또한 납땜부(640)는 하면에 형성된 통전 패턴(420)으로 전기적 신호(음성 신호)를 인가할 수 있도록 관통홀(650)이 형성된다. 예를 들면, 전류는 상면에 형성된 납땜부(640)로부터 통전 패턴(660)을 거쳐 상면에 형성된 통전 패턴(420)을 거쳐 하면에 형성된 통전 패턴(420), 하면에 형성된 통전 패턴(660)을 거쳐 하면에 형성된 납땜부(640)로 흐르게 된다. 제2에너지 변환부(400)와 서스펜션(600)이 일체로 형성되므로, 통전 패턴(420)과 통전 패턴(660) 또한 일체로 형성될 수 있다. On the other hand, 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. In addition, 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. For example, 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.

도 7을 참조하면, 서스펜션(600) 상에서 납땜부(640)로부터 통전 패턴(420)을 잇는 부분 외에도 통전 패턴(660)이 형성된다. 이는 외주부에 형성된 통전 패턴(660)은 고분자 필름(410)의 강성을 높여줘 서스펜션(600)의 고정을 용이하게 하고, 내주부(420) 둘레에 형성된 통전 패턴(660)은 진동판(500)의 부착을 용이하게 한다. 또한, 연결부(630) 상에 형성된 통전 패턴(660)은, 실제로 통전을 위해 이용되는 것은 하나이나, 대칭되는 위치에 위치한 연결부(630) 간의 강성을 맞추고, 또한 연결부(630) 자체의 강성을 높이기 위해서 형성된 것이다. Referring to FIG. 7, a conductive pattern 660 is formed on the suspension 600 in addition to connecting the conductive pattern 420 from the soldering part 640. This is because 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. To facilitate. In addition, although 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.

도 7에서는 제2에너지 변환부(400)가 서스펜션(600)과 일체로 형성된 예를 도시하고 있으나, 제2에너지 변환부(400)와 서스펜션(600)이 별도로 제조된 다음 부착될 수도 있다. 이때에는 통전 패턴(420)과 통전 패턴(660)이 일체로 형성되어 전기적으로 연결된 상태가 아니기 때문에, 서스펜션(600)의 내주부(420)에 통전 패턴(420)과 전기적으로 연결하기 위한 납땜부(미도시)가 마련되는 것이 바람직하다. In FIG. 7, 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. At this time, since the conduction pattern 420 and the conduction pattern 660 are integrally formed and not electrically connected, the soldering part for electrically connecting the conduction pattern 420 to the inner circumferential portion 420 of the suspension 600. (Not shown) is preferably provided.

도 8은 본 발명의 제1 실시예에 따른 음향변환장치의 사시도이다. 도 1, 도 2 및 도 8을 참조하면, 하부 요크(210)는 제1전자석(310)이 부착되는 바닥면(211)과, 바닥면(211)으로부터 절곡되어 형성된 측벽(212)을 구비한다. 또한 측벽(212)중 두 개의 모서리에는 측벽(212)의 일부가 삭제된 삭제부(214)가 존재하며, 삭제부(214)의 상부를 프레임(100)이 고정부(110)가 덮어 하부 요크(210)를 프레임(100)에 고정할 수 있게 한다. 한편 프레임(100)의 고정부(110)에 터미널(700)을 부착하는 것이 공간활용 면에서 유리하다. 하부 요크(210)와 터미널(700)은 프레임(100)을 사출 성형할 때 인서트 사출하는 것이 별도의 부착 과정을 거칠 필요가 없어 조립 공정 수를 줄일 수 있어 바람직하다. 터미널(700)은 서스펜션(600)의 납땜부(640)와 납땜되는 상면(720)과 음성 신호를 인가받는 하면(730)을 구비한다. 상면(720)은 프레임(100)의 상부로 노출되고, 하면(730)은 프레임의 하부로 노출된다. 8 is a perspective view of an acoustic transducer according to a first embodiment of the present invention . 1, 2, and 8, 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. . In addition, at two corners of the sidewalls 212, there is a deletion part 214 in which a part of the sidewalls 212 is deleted. 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.

상부 요크(220) 또한 제2전자석(320)이 부착되는 상면(221)과, 상면(221)으로부터 절곡되어 형성되는 측벽(222)을 구비한다. 또한 음향변환장치가 별도의 프로텍터를 구비하지 않아도, 상부 요크(220)가 프로텍터의 역할을 대신할 수 있다. 이때, 상부 요크(220)의 상면(221)에는 음향을 방출하기 위한 음향방출공(223)이 형성된다. 음향방출공(223)은 제2전자석(320)이 노출되지 않도록 상면(221)에서 제2전자석(320)이 부착된 중앙부의 바깥쪽, 즉, 모서리 부분에 형성된다. 이때, 음향방출공(223)은 측벽(222)으로부터 소정 간격을 두고 형성되어야 한다. 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. In addition, even if the acoustic transducer does not have a separate protector, the upper yoke 220 may take the role of the protector. At this time, 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.

한편 진동판(500)이 원활하게 진동할 수 있게 하기 위해서, 하부에 외부 공기가 유입될 수 있는 통풍홀이 형성되어야 한다. 이를 위해 하부 요크(210)의 바닥면(211)에는 통풍홀(213)이 형성되어 있다. 통풍홀(213) 또한 바닥면(211)에서 제1전자석(310)이 부착된 중앙부가 아닌 바깥 측에 형성되어야 한다. 하부 요크(210)의 바닥면(211)이 프레임(100)에 의해 덮여 외부로 노출되지 않을 경우, 프레임(100)에도 통풍홀이 형성되어야 한다. On the other hand, in order to allow the diaphragm 500 to vibrate smoothly, a ventilation hole through which external air can be introduced must be formed in the lower portion. To this end, 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.

도 9 및 도 10은 제1에너지 변환부에 직류 전압을 인가하는 회로 구성도들이다. 도 9에 도시된 실시예에서는, 음향 변환 장치는 전기 기기의 전원공급부(800)로부터 예를 들면 5V와 같은 직류전압(전원)을 인가받아 제1 및 제2전자석(310, 320)에 공급한다. 전원공급부(800)와 제1 및 제2 전자석(310, 320) 사이에는 전원공급을 위한 전원공급선(PL)이 배치되며, 이 전원공급선(PL)은 하부요크(220)와 상부 요크(220)의 사이로, 또는 하부 요크(220)과 상부 요크(220)를 관통하여 제1 및 제2전자석(310), 320)에 전기적으로 연결된다. 도 9에서의 직류 전압의 공급은 전기 기기의 제어에 의해 조절되거나, 전원 공급 및 차단을 위한 별도의 스위치(미도시)가 구비될 수도 있다. 제1전자석(310)과 제2전자석(320)은 도시된 바와 같이, 병렬로 연결될 수도 있고 직렬로 연결될 수도 있다. 아울러, 제1전자석(310)과 제2전자석(320)의 코일 권선 방향과, 병렬/직렬 연결 방향은 자기력 방향을 상방으로 또는 하방으로 유지하기 위해 변형될 수 있다. 이러한 전압 공급 회로의 경우, 자기력이 일정하게 유지되도록 한다. 9 and 10 are circuit configuration diagrams for applying a DC voltage to the first energy conversion unit. In the embodiment shown in FIG. 9, 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. 9 may be controlled by the control of an electric device, or may be provided with a separate switch (not shown) for supplying and shutting off power. As shown in the drawing, the first electromagnet 310 and the second electromagnet 320 may be connected in parallel or in series. In addition, 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.

도 10에 도시된 실시예에서는, 음향 변환 장치는 전기 기기의 전원공급부(800)로부터 예를 들면 5V와 같은 직류전압(전원)을 인가받는 전원 공급부(820)를 구비하고, 전원공급부(820)는 설정된 전압 크기로 또는 별도의 입력 수단(미도시)에 의해 설정된 전압 크기로 공급된 직류 전압을 감압/승압시켜 제1 및 제2전자석(310, 320)에 공급한다. 제1 및 제2전자석(310, 320)으로의 직류 전압의 공급은 전기 기기의 제어에 의해 조절되거나, 전원 공급 및 차단을 위한 별도의 스위치(미도시)가 구비될 수도 있다. 제1전자석(310)과 제2전자석(320)은 도시된 바와 같이, 병렬로 연결될 수도 있고 직렬로 연결될 수도 있다. 아울러, 제1전자석(310)과 제2전자석(320)의 코일 권선 방향과, 병렬/직렬 연결 방향은 자기력 방향을 상방으로 또는 하방으로 유지하기 위해 변형될 수 있다. 전원공급부(820)와 제1 및 제2 전자석(310, 320) 사이에는 전원공급을 위한 전원공급선(PL)이 배치되며, 이 전원공급선(PL)은 하부요크(220)와 상부 요크(220)의 사이로, 또는 하부 요크(220)과 상부 요크(220)를 관통하여 제1 및 제2전자석(310, 320)에 전기적으로 연결된다. 이러한 전원 공급/조절 회로의 경우, 제2에너지 변환부(400)에 영향을 미치는 자기력의 세기를 변화시킬 수 있는 장점이 있다.In the embodiment shown in FIG. 10, 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. As shown in the drawing, the first electromagnet 310 and the second electromagnet 320 may be connected in parallel or in series. In addition, 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. 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.

도 11 및 12는 음성 신호/특성 음성 신호를 제1에너지 변환부에 인가하는 회로 구성도들이다. 11 and 12 are circuit configuration diagrams for applying an audio signal / characteristic audio signal to the first energy conversion unit.

도 11에 도시된 실시예에서는, 음향 변환 장치가 전기 기기의 음성 신호 처리부(900)로부터 음성 신호를 음성신호선(SL)을 통하여 인가받아 제2에너지 변환부(400)에 인가하고, 추가적으로 음성 신호를 제1 또는 제2전자석(310, 320)에도 함께 인가하는 구성이다. 이러한 구성에 의해서, 제1에너지 변환부에 의해 생성되는 자기장도 음성 신호의 변화에 대응하여 자기장도 가변하게 되어, 자기력도 변화된다. 이러한 변화된 자기력에 의해, 제2에너지 변환부(400)에 의한 자기력 간의 상호 작용에 의해, 그 진동판(500)에 전달되는 진동량이 증폭될 수 있다.In the embodiment shown in FIG. 11, 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. With such a configuration, 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. By the changed magnetic force, 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.

도 12에 도시된 실시예에서는, 음향 변환 장치가 전기 기기의 음성 신호 처리부(900)로부터 음성 신호를 인가받아 제2에너지 변환부(400)에 인가하고, 특성 음성 신호를 생성하는 신호 생성부(920)를 추가적으로 구비하고, 이 신호 생성부(920)에 의해 생성된 특성 음성 신호를 제1 또는 제2전자석(310, 320)에 인가하는 구성이다. 신호 생성부(920)가 생성하는 특성 음성 신호는 진동판(500)의 물성적 특성에 의한 이상 진동 특성을 상쇄시키기 위한 신호에 해당되는 것이다. 이러한 특성 음성 신호의 인가는 진동판(500)의 이상 진동 특성을 보완하는 효과가 있다.In the embodiment shown in FIG. 12, 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.

이상에서, 본 발명은 본 발명의 실시예 및 첨부도면에 기초하여 상세하게 설명되었다. 그러나, 이상의 실시예들 및 도면에 의해 본 발명의 범위가 제한되지는 않으며, 본 발명의 범위는 후술한 특허청구범위에 기재된 내용에 의해서만 제한될 것이다.In the above, the present invention has been described in detail based on the embodiments of the present invention and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

Claims (13)

직류 전압을 인가받아 일정 공간 내에 자기력을 상방 또는 하방으로 형성하는 제1에너지 변환부; A first energy converter configured to receive a DC voltage to form a magnetic force upward or downward in a predetermined space; 일정 공간 내에 위치하며, 음성 신호를 인가받아 자기력을 형성하는 제2에너지 변환부; 및A second energy converter positioned in a predetermined space and configured to receive a voice signal to form a magnetic force; And 제2에너지 변환부에 부착되어 제2에너지 변환부의 움직임에 따라 진동하는 진동판;을 포함하는 것을 특징으로 하는 음향변환장치. And a vibration plate attached to the second energy converter and vibrating according to the movement of the second energy converter. 제1항에 있어서, 제1에너지 변환부의 자기력과, 제2에너지 변환부의 자기력의 상호 작용에 의해 진동판이 상하 방향으로 진동하는 것을 특징으로 하는 음향변환장치.The acoustic transducer as set forth in claim 1, wherein the diaphragm vibrates in the vertical direction by the interaction of the magnetic force of the first energy converter and the magnetic force of the second energy converter. 제1항에 있어서, 음향변환장치는 자계 회로에 서로 다른 크기를 지닌 직류 전압을 공급하는 전원 공급부를 구비하는 것을 특징으로 하는 음향변환장치.The sound conversion device according to claim 1, wherein the sound conversion device includes a power supply unit for supplying DC voltages having different magnitudes to the magnetic field circuit. 제1항에 있어서, 제1에너지 변환부는 제2에너지 변환부에 인가되는 음성 신호를 추가적으로 인가받는 것을 특징으로 하는 음향변환장치.The acoustic conversion device of claim 1, wherein the first energy conversion unit additionally receives a voice signal applied to the second energy conversion unit. 제1항에 있어서, 제1에너지 변환부는 특성 음성 신호를 추가적으로 인가받는 것을 특징으로 하는 음향변환장치.The acoustic conversion device of claim 1, wherein the first energy conversion unit additionally receives a characteristic voice signal. 제5항에 있어서, 음향변환장치는 특성 음성 신호를 생성하여 제1에너지 변환부에 인가하는 신호 생성부를 구비하는 것을 특징으로 하는 음향변환장치.The acoustic transducer of claim 5, wherein the acoustic transducer includes a signal generator configured to generate a characteristic speech signal and apply the characteristic speech signal to the first energy converter. 제1항 내지 제5항 중의 어느 한 항에 있어서, 제1에너지 변환부의 일부는 음향변환장치의 프레임에 고정된 것을 특징으로 하는 음향변환장치.The sound conversion device according to any one of claims 1 to 5, wherein a part of the first energy conversion unit is fixed to a frame of the sound conversion device. 제1항 내지 제5항 중의 어느 한 항에 있어서, 제1에너지 변환부는 일정 공간을 형성하고, 일정 공간 내에 진동판을 위치시키는 상부 요크 및 하부 요크와, 상부 요크의 저면 또는 하부 요크의 상면 중의 적어도 한 면 이상에 장착되는 전자석을 포함하는 것을 특징으로 하는 음향변환장치.The first energy conversion unit according to any one of claims 1 to 5, wherein the first energy conversion unit forms a predetermined space, and at least one of an upper yoke and a lower yoke for positioning the diaphragm in the predetermined space, and an upper surface of the bottom or lower yoke of the upper yoke. Acoustic transducer comprising an electromagnet mounted on at least one side. 제1항에 있어서,The method of claim 1, 제2에너지 변환부는 고분자 필름 상에 음성 신호가 흐를 수 있는 통전 패턴을 구비하는 것을 특징으로 하는 음향변환장치. The second energy conversion unit is an acoustic conversion device, characterized in that it comprises a conductive pattern through which a voice signal can flow on the polymer film. 제8항에 있어서, 제1에너지 변환부는 일정 공간의 일측에는 전자석을 구비하고, 일정 공간의 마주하는 타측에는 강자성체 금속 코어 또는 영구자석을 구비하는 것을 특징으로 하는 음향변환장치.The sound converting apparatus of claim 8, wherein the first energy converting unit includes an electromagnet on one side of the predetermined space, and a ferromagnetic metal core or a permanent magnet on the other side of the predetermined space. 제1항에 있어서,The method of claim 1, 진동판의 이상 진동을 방지하는 서스펜션;을 더 포함하는 것을 특징으로 하는 음향변환장치. And a suspension for preventing abnormal vibration of the diaphragm. 제1항에 있어서,The method of claim 1, 진동판의 이상 진동을 방지하며, 제2에너지 변환부로 음성 신호를 전달하는 통전 패턴이 형성된 서스펜션;을 더 포함하는 것을 특징으로 하는 음향변환장치. And a suspension formed with a conduction pattern for preventing abnormal vibration of the diaphragm and transmitting a voice signal to the second energy conversion unit. 제11항 또는 제12항에 있어서,The method of claim 11 or 12, 제2에너지 변환부와 서스펜션은 일체로 형성되는 것을 특징으로 하는 음향변환장치. Acoustic converter, characterized in that the second energy conversion unit and the suspension is formed integrally.
PCT/KR2013/003726 2012-05-18 2013-04-30 Sound conversion device Ceased WO2013172575A1 (en)

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CN107534811A (en) * 2015-07-22 2018-01-02 谷歌有限责任公司 Apparatus and method for the high-performance electric magnetic speaker based on individual layer
EP3326386A4 (en) * 2015-07-22 2019-03-27 Google LLC DEVICES AND METHODS FOR HIGH-PERFORMANCE ELECTROMAGNETIC LOUDSPEAKERS USING MONOLAYERS
CN107534811B (en) * 2015-07-22 2020-08-11 谷歌有限责任公司 Apparatus for high performance electromagnetic speaker based on single layer
CN107613442A (en) * 2017-07-28 2018-01-19 苏州逸巛声学科技有限公司 A kind of receiver and its assembly method
CN107613442B (en) * 2017-07-28 2024-05-28 苏州逸巛科技有限公司 Telephone receiver and assembling method thereof

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KR20130128849A (en) 2013-11-27

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