WO2016167521A1 - Earphones for preventing hearing loss - Google Patents

Earphones for preventing hearing loss Download PDF

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Publication number
WO2016167521A1
WO2016167521A1 PCT/KR2016/003765 KR2016003765W WO2016167521A1 WO 2016167521 A1 WO2016167521 A1 WO 2016167521A1 KR 2016003765 W KR2016003765 W KR 2016003765W WO 2016167521 A1 WO2016167521 A1 WO 2016167521A1
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Prior art keywords
frame
earphones
hearing loss
magnet
main diaphragm
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PCT/KR2016/003765
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French (fr)
Korean (ko)
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김민수
김경수
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김민수
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Publication of WO2016167521A1 publication Critical patent/WO2016167521A1/en

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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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • 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
    • H04R9/04—Construction, mounting, or centering of coil

Definitions

  • the present invention relates to a hearing loss prevention earphone, and more specifically, by using both the air conduction method as well as the bone conduction method, so that the user can clearly hear the sound with a small output, so that no abnormality in hearing even after long use And it is related to the hearing loss prevention earphones that can reduce noise pollution by preventing sound leakage to the outside even if the output is increased.
  • the air conduction method is a method in which sound is transmitted to the inner ear through the eardrum.
  • the vibration of the sound transmitted to the air is transmitted to the eardrum and the vibration is transmitted through three bones located in the eardrum. It is passed on to "wow".
  • rinba liquid is filled in the cochlea (snail tube), and the vibration of the liquid is transmitted to the auditory nerve as the electrical signal is changed, so that the human brain recognizes sound.
  • the bone conduction method is that the sound through the skull (cranial bone) is transmitted to the cochlea, through the auditory nerve to the brain, the vibration recognition in the sound recognition mechanism skips the process of passing through the three bones located in the eardrum and the tympanic membrane. It is.
  • acoustic vibrations applied to the surface of the skin around the ear are transmitted directly to the cochlea through the skull, so that even if the eardrum or the ear bones are abnormal, if the cochlear and auditory nerves are normal, bone conduction through the skin can be ensured. You will hear the sound.
  • FIGS. 1 and 2 An example of such a bone conduction earphone is the technology described in Korean Patent No. 10-0980085 as shown in FIGS. 1 and 2, the technical feature of which is a speaker having a bone conduction function by shock absorption and frequency range adjustment.
  • the outer case 111 and the upper and lower cases 101 and 106 coupled to the upper and lower portions of the outer case 111 are provided inside the shaft housing 108 while flowing along the outer circumferential surface of the shaft 103.
  • a shock absorbing part is provided to protect the diaphragm 104 from impact, and the shock absorbing part is coupled to the shaft 103 by the upper case 101 and the lower case 106 coupled to the upper and lower ends of the shaft 103.
  • the diaphragm 104 and the weight plate 102, the yoke 105, the magnet 112 and the inner plate 109 are integrally connected, the diaphragm 104 and the yoke 105 Frequency between Characterized in that it is provided; a frequency range adjusting unit to have power.
  • Korean Patent No. 10-0980085 transmits the sound through the bone conduction method, so it does not impact the eardrum of the user, and thus does not cause problems such as deafness even after long time use.
  • the vibration is increased according to the bone conduction method, and the vibration is transmitted to the user.
  • the vibration is weak, it stops as a tickle, but when the vibration is severe, there is a problem that leads to a headache.
  • an object of the present invention is to reproduce the sound by using both the air conduction method and bone conduction method when receiving a signal to reproduce the sound to increase the output to increase the volume It is possible to provide clear sound even if you do not provide a hearing loss earphone that prevents the user from hearing problems even if used for a long time.
  • another object of the present invention is to have a mastoid for generating bone conduction vibration on the upper part of the main diaphragm vibrating by the voice coil to reproduce sound, so that both air conduction and bone conduction can be used, but the main diaphragm, A voice coil and a second frame accommodating a first frame provided with a magnet are provided, and an auxiliary diaphragm is provided at the lower end of the first frame, and has a phase opposite to that of the sound propagated to the rear of the sound reproduced by the main diaphragm.
  • the second frame located at the rear part of the earphone is made of dense metal and the bottom surface is made thick to increase the acoustic impedance to leak to the rear part of the earphone. It is to provide a hearing loss prevention earphone that attenuates the sound to prevent the sound from leaking to the outside.
  • the present invention for solving this problem
  • the hearing loss prevention earphone comprising a case and a module unit for reproducing sound in the inside of the case, wherein the module unit is connected to the lower part of the main diaphragm and the first frame and the main diaphragm is provided on the top of the main diaphragm A voice coil to be moved, a magnet part provided to correspond to the voice coil inside the first frame, and a mastoid connected to an upper portion of the main diaphragm to move up and down like a main diaphragm.
  • the magnet portion is characterized by consisting of a ring magnet formed in a ring shape, and a plate magnet provided inside the ring magnet.
  • the inner lower portion of the first frame is formed with a receiving groove in which the plate-shaped magnet is installed, the side of the receiving groove is characterized in that the installation groove in which the ring-shaped magnet is installed is formed.
  • an installation hole penetrating the first frame up and down is formed in the lower surface of the receiving groove, and a first fixing member having a fixing hole is installed in the installation hole, and a plate magnet is attached to the first fixing member on the upper portion of the plate magnet.
  • a second fixing member for fixing is provided.
  • a fixing pin for vertically penetrating the plate-shaped magnet is formed on the lower surface of the second fixing member, a fixing hole for inserting the lower end of the fixing pin is formed in the center of the first fixing member.
  • the first fixing member is formed to protrude to the lower portion of the first frame, characterized in that the lower surface of the first fixing member is provided with an auxiliary diaphragm for generating a wavelength of a phase opposite to the main diaphragm.
  • the second frame is further provided on the outside of the first frame.
  • the attenuation protrusions are further formed on the inner bottom surface of the second frame.
  • the auxiliary diaphragm is coupled to the lower surface of the fixing pin and the central portion of the attenuation protrusion.
  • the upper end of the first frame is formed with a stepped portion is the main diaphragm is seated, characterized in that the side projections for fixing the main diaphragm is formed.
  • a second shaft is attached to a lower surface of the central diaphragm, a fixing plate is formed at a lower end of the second shaft, and the voice coil is coupled to the fixing plate.
  • the first shaft is attached to the upper surface of the central portion of the main diaphragm, characterized in that the mastoid is coupled to the upper end of the first shaft.
  • the lower surface of the mastoid is characterized in that the bone conduction plate is formed on the lower surface of the edge is formed.
  • the present invention is provided with a mastoid for generating bone conduction vibrations on the upper part of the main diaphragm vibrating by the voice coil to reproduce sound, so that both air conduction and bone conduction can be used, but the main diaphragm, voice coil,
  • a second frame accommodating a first frame provided with a magnet; an auxiliary diaphragm is provided at a lower end of the first frame, and a vibration of a phase opposite to that propagated to the rear of the sound reproduced by the main diaphragm is applied.
  • the second frame located at the rear part of the earphone is made of dense metal and the bottom surface is made thick to increase the acoustic impedance to attenuate the sound leaking to the rear part of the earphone. This prevents the sound from leaking to the outside.
  • FIG. 1 is a perspective view of a conventional earphone.
  • FIG. 2 is a perspective view of a conventional earphone.
  • FIG 3 is a perspective view of the deafness earphone according to the present invention.
  • Figure 4 is an exploded cross-sectional view of the module unit provided inside the hearing loss prevention earphone according to the invention.
  • FIG. 5 is a cross-sectional view of the module unit of the hearing loss prevention earphone according to the present invention.
  • Figure 3 is a perspective view of the hearing loss prevention earphone according to the present invention
  • Figure 4 is an exploded cross-sectional view of the module portion provided in the interior of the hearing loss prevention earphone according to the present invention
  • Figure 5 is a cross-sectional view of the module portion of the hearing loss prevention earphone according to the present invention.
  • the present invention relates to a hearing loss prevention earphone as shown in Figures 3 to 5, the configuration of the case 200 and the module 300 is provided inside the case 200 to form an appearance to reproduce the sound
  • the module unit 300 is provided in the lower portion of the main diaphragm 510 and the main diaphragm 510 provided on the upper end of the first frame 500 and the first frame 500 is formed in a cylindrical shape.
  • a space is formed inside the first frame 500 such that the voice coil 530 and the magnet 540 are provided inside, and a stepped portion 502 is formed on the upper side of the diaphragm 510.
  • the edge of the seating portion, the side of the stepped portion 502, the engaging projection 504 is formed at a predetermined interval along the inner circumferential surface to fix the edge of the main diaphragm 510 to the main diaphragm 510 stepped portion 502 ) To prevent random separation.
  • a second shaft 514 is attached to a lower surface of the central diaphragm 510, and a fixing plate 516 is formed at a lower end of the second shaft 514, and the voice is fixed to the fixing plate 516.
  • Coil 530 is coupled.
  • the voice coil 530 vibrates up and down by an electric field generated by the voice coil 530 and a magnetic field formed by the magnet part 540.
  • a first shaft 512 is attached to an upper surface of the central portion of the main diaphragm 510, and a mastoid 520 is coupled to an upper end of the first shaft 512.
  • the mastoid 520 when the main diaphragm 510 vibrates by the voice coil 530, the mastoid 520 also vibrates together, and the entire earphone is made because the mastoid 520 has a predetermined weight or more. It vibrates and delivers sound in a bone conduction manner that delivers sound through skin contact rather than air.
  • the sound generated by the main diaphragm 510 is transmitted by the air conduction method, and the sound generated by the mastoid 520 is transmitted through the bone conduction method, so that even if the output is not increased, a clear sound can be heard. It becomes possible.
  • the hearing nerve can be prevented from being damaged even if it is used for a long time without affecting the hearing.
  • a bone conduction plate 522 is attached to a lower surface of the mastoid 520, and a ring-shaped groove 524 is formed at an edge of the lower surface of the bone conduction plate 522 so that the mastoid 520 is formed.
  • the weight of the bone conduction plate 522 and the ring-shaped groove 524 allows the mastoid 520 to vibrate up and down accurately without inclining from side to side, thereby producing a sound close to the original sound. To play it back.
  • the magnet portion 540 is composed of a ring-shaped magnet 542 formed in a ring shape and a plate-shaped magnet 544 provided inside the ring-shaped magnet 542, the ring-shaped magnet 542 and the plate-shaped magnet (
  • the voice coil 530 is positioned in a space formed between the 544 to vibrate up and down.
  • the receiving groove 506 is formed on the inner lower portion of the first frame 500, the plate-shaped magnet 544 is located, the installation groove 508 is formed on the side of the receiving groove 506 is the ring-shaped magnet 542 is inserted.
  • an installation hole 509 penetrating the first frame 500 up and down is formed in the lower surface of the accommodation groove 506, and the installation hole 509 has a first fixing member having the same shape as the installation hole 509. 550 is inserted and fixed.
  • the plate magnet 544 is positioned above the first fixing member 550, and the second fixing member 560 is provided on the plate magnet 544. In the center of the lower surface of the fixing pin 562 is formed to protrude, and fixed to penetrate the plate magnet 544 up and down.
  • a through hole 546 is formed at the center of the plate magnet 544, and a fixing hole 552 is formed at the center of the first fixing member 550 to correspond to the through hole 546.
  • the pin 562 is inserted into the through hole 546 and the fixing hole 552 to prevent the plate magnet 544 from being changed in position by the magnetic force of the ring magnet 542.
  • the voice coil 530 is stably oscillated by an electrical signal transmitted from the outside. .
  • the first fixing member 550 is formed to protrude to the lower portion of the first frame 500 through the installation hole 509, the auxiliary diaphragm 420 is formed on the lower surface of the first fixing member 550. It is located in contact.
  • the lower end of the fixing pin 562 of the second fixing member 560 is formed at the same position as the lower end of the first fixing member 550, the lower surface of the fixing pin 562 is the auxiliary diaphragm 420 ) Will be attached to the center.
  • the second frame 400 is provided on the outside of the first frame 500, the second frame 400 is formed in a cylindrical shape and the attenuation protrusion 410 is formed on the inner bottom surface is accommodated therein
  • the auxiliary diaphragm 420 provided at the lower end of the first frame 500 is in contact with the upper surface of the attenuation protrusion 410.
  • the upper center portion of the attenuation protrusion 410 and the auxiliary diaphragm 420 are adhesively coupled, so that the auxiliary diaphragm 420 may vibrate freely.
  • the main diaphragm 510 provided on the upper portion of the first frame 500 vibrates by the voice coil 530 and the magnet part 540 to reproduce sound, and the main diaphragm 510 reproduces the sound.
  • the sound may propagate in the direction of the mastoid 520, but may also propagate in the direction in which the auxiliary diaphragm 420 is formed.
  • the first and second cases 500 and 400 vibrate together by the mastoid 520, thereby reproducing sound while the auxiliary diaphragm 420 vibrates and is reproduced by the auxiliary diaphragm 420. Since the phase of the sound is formed in a phase opposite to the phase of the sound reproduced by the main diaphragm 510, the sounds reproduced by the main diaphragm 510 and propagated toward the auxiliary diaphragm 420 cancel each other to weaken the sound. do.
  • the main diaphragm 510 is vibrated up and down by the voice coil 530 to reproduce sound, and the first frame 500 is vibrated by the first frame 500 by the vibration of the main diaphragm 510. Since the auxiliary diaphragm 420 installed at the bottom of the vibration vibrate, a phase difference is generated from the sound reproduced by the main diaphragm 510.
  • the sound reproduced by the main diaphragm 510 and the subsidiary diaphragm 420 may be completely opposite phases, or may be phases with a certain degree of difference, and thus, the main diaphragm 510 and the subsidiary diaphragm 420 may have different phases.
  • the first frame 500 is made of a light weight and low density plastic material
  • the second frame 400 is made of a high density metal material
  • the inner bottom surface of the second frame 400 Attenuation protrusions 410 are formed in the thickness of the bottom surface becomes thick.
  • the second frame 400 is made of a high density metal, The surface is thick by the attenuation protrusion 410 so that the sound leaking to the outside through the bottom surface is almost canceled so that the sound does not leak to the outside.
  • the part where the mastoid 520 is located in the module part 300 is positioned in the direction of the insertion part 210 formed in the entirety of the case 200 of the earphone, and the part where the auxiliary diaphragm 420 is located. Is located in the other direction of the insertion unit 210, when the user uses the earphone of the present invention, the sound transmitted through the insertion unit 210 is clearly heard without attenuation phenomenon, but almost in the other direction of the insertion unit 210 All sounds are attenuated to prevent noise from leaking outside.
  • the noise does not leak to the outside, thereby preventing damage to the surrounding people due to the noise.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

The present invention relates to earphones for preventing hearing loss and, more specifically, to earphones for preventing hearing loss that use a bone-conduction method, as well as an air-conduction method, to enable a user to clearly hear sounds despite a low sound output, thereby preventing an abnormality in the sense of hearing even though the user uses the earphones for a long time and preventing sounds from being heard outside even though the sound output is raised, which makes it possible to reduce noise pollution. To this end, the present invention provides earphones for preventing hearing loss that comprise: a case; and a module provided inside the case to reproduce sounds, wherein the module comprises: a first frame having the main vibration plate provided on the upper end thereof; a voice coil connected to the lower portion of the main vibration plate to vertically move the main vibration plate; a magnet provided inside the first frame to correspond to the voice coil; and a mastoid connected to the upper portion of the main vibration plate to move upward and downward similar to the main vibration plate.

Description

난청 방지 이어폰Deafness earphones
본 발명은 난청 방지 이어폰에 관한 것으로서, 더욱 상세하게는 공기전도 방식 뿐만 아니라 골전도 방식 모두 사용함으로써, 적은 출력으로도 사용자가 또렷하게 소리를 들을 수 있도록 함으로써, 장시간 사용하더라도 청각에 이상이 발생하지 않도록 하며, 출력을 높이더라도 외부로 소리가 누출되지 않도록 하여 소음공해를 줄여줄 수 있는 난청 방지 이어폰에 관한 것이다.The present invention relates to a hearing loss prevention earphone, and more specifically, by using both the air conduction method as well as the bone conduction method, so that the user can clearly hear the sound with a small output, so that no abnormality in hearing even after long use And it is related to the hearing loss prevention earphones that can reduce noise pollution by preventing sound leakage to the outside even if the output is increased.
일반적으로 사람이 소리를 들을 수 있는 방법은 두 가지로 공기전도(air conduction)방식과 골 전도(boneconduction)방식이 그것이다.In general, there are two ways that a person can hear sound: air conduction and boneconduction.
이 중에서, 공기전도방식은 소리가 고막을 통해 내이(inner ear)로 전달되는 방식으로서, 통상 공기로 전해지는 소리의 진동은 귀속에 고막으로 전달되어 고막 속에 자리잡고 있는 3개의 뼈를 통하여 진동이 "와우"라는 것에 전달된다.Among them, the air conduction method is a method in which sound is transmitted to the inner ear through the eardrum. In general, the vibration of the sound transmitted to the air is transmitted to the eardrum and the vibration is transmitted through three bones located in the eardrum. It is passed on to "wow".
따라서, 와우(달팽이관)에는 린바액이라는 액체가 차 있고, 이 액체의 진동이 전기신호로 바뀌면서 청각 신경에 전달됨으로써, 사람의 뇌는 소리를 인식하게 된다.Therefore, a liquid called rinba liquid is filled in the cochlea (snail tube), and the vibration of the liquid is transmitted to the auditory nerve as the electrical signal is changed, so that the human brain recognizes sound.
한편, 골전도방식은 두개골(cranial bone)을 통한 소리가 달팽이관에 전달, 청각신경을 거쳐 뇌로 전달되는 것으로서, 소리 인식 메커니즘에서 진동이 고막과 고막 속에 자리 잡고 있는 3개의 뼈를 경유하는 과정을 생략한 것이다.On the other hand, the bone conduction method is that the sound through the skull (cranial bone) is transmitted to the cochlea, through the auditory nerve to the brain, the vibration recognition in the sound recognition mechanism skips the process of passing through the three bones located in the eardrum and the tympanic membrane. It is.
즉, 귀 주변의 피부 표면에 가해지는 음향 진동이 두개골을 통하여 직접 와우에 전달됨으로써, 고막이나 이소골(耳小骨)에 이상이 있는 난청자라도, 와우와 청각 신경이 정상이라면 피부를 통한 골 전도로 확실하게 소리를 들을 수 있게 되는 것이다.That is, acoustic vibrations applied to the surface of the skin around the ear are transmitted directly to the cochlea through the skull, so that even if the eardrum or the ear bones are abnormal, if the cochlear and auditory nerves are normal, bone conduction through the skin can be ensured. You will hear the sound.
이러한 골전도 이어폰의 일 예로 도 1 및 도 2에 도시된 바와 같은 한국등록특허 제10-0980085호에 기재된 기술이 있는데, 그 기술적 특징은 충격흡수와 주파수범위조절에 의해 골전도 기능을 갖는 스피커에 있어서, 외부케이스(111) 및 이 외부케이스(111)의 상,하부에 결합된 상,하부 케이스(101,106)의 내부에 구비되며, 샤프트하우징(108)이 샤프트(103)의 외주면을 따라 유동하면서 진동판(104)을 충격으로부터 보호하는 충격흡수부가 구비되되, 상기 충격흡수부는 샤프트(103)의 상,하단에 상부케이스(101)와 하부케이스(106)가 결합되고, 샤프트(103)에 끼워진 샤프트하우징(108)의 외주면에는 진동판(104)과 가중플레이트(102), 요크(105)와 자석(112) 그리고 내측플레이트(109)가 일체로 연결 구비되고, 상기 진동판(104)과 요크(105)의 사이에는 무게 변동에 따라 주파수가 진동력을 가질 수 있도록 한 주파수범위조절부;가 구비됨을 특징으로 한다.An example of such a bone conduction earphone is the technology described in Korean Patent No. 10-0980085 as shown in FIGS. 1 and 2, the technical feature of which is a speaker having a bone conduction function by shock absorption and frequency range adjustment. In this case, the outer case 111 and the upper and lower cases 101 and 106 coupled to the upper and lower portions of the outer case 111 are provided inside the shaft housing 108 while flowing along the outer circumferential surface of the shaft 103. A shock absorbing part is provided to protect the diaphragm 104 from impact, and the shock absorbing part is coupled to the shaft 103 by the upper case 101 and the lower case 106 coupled to the upper and lower ends of the shaft 103. On the outer circumferential surface of the housing 108, the diaphragm 104 and the weight plate 102, the yoke 105, the magnet 112 and the inner plate 109 are integrally connected, the diaphragm 104 and the yoke 105 Frequency between Characterized in that it is provided; a frequency range adjusting unit to have power.
그런데, 한국등록특허 제10-0980085호에 기재된 기술은 골전도 방식을 통하여 소리를 전달하게 되므로 사용자의 고막에 충격을 주지 않기 때문에 장시간 사용에도 난청과 같은 문제점이 발생하지 않으나, 또렷한 소리를 듣기 위해 볼륨을 크게 할 경우 골전도 방식에 의한 진동이 커지게 되어 사용자에게 진동이 전해지게 되어 진동이 약할 경우 간지러움으로 그치지만 진동이 심할 경우 두통까지 이어지게 되는 문제점이 있다.By the way, the technology described in Korean Patent No. 10-0980085 transmits the sound through the bone conduction method, so it does not impact the eardrum of the user, and thus does not cause problems such as deafness even after long time use. When the volume is increased, the vibration is increased according to the bone conduction method, and the vibration is transmitted to the user. When the vibration is weak, it stops as a tickle, but when the vibration is severe, there is a problem that leads to a headache.
또한, 일반적인 공기전도 이어폰일 경우, 골전도와 같은 간지러움이나 두통은 없지만 소리를 잘 듣기 위하여 볼륨을 높이게 되면 고막에 충격이 가해져 난청 과 같은 이상이 발생하는 문제점이 있다.In addition, in the case of a general air conduction earphone, there is no tickling or headache, such as bone conduction, but when the volume is increased in order to hear the sound well, there is a problem in that an abnormality such as hearing loss occurs due to an impact on the eardrum.
본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 신호를 수신하여 소리를 재생할 때, 공기전도 방식과 골전도 방식 모두를 사용하여 소리를 재생하도록 하여 출력을 높여 볼륨을 크게 하지 않더라도 또렷한 소리를 전달할 수 있어 사용자가 장시간 사용하더라도 청각에 이상이 발생하지 않도록 하는 난청 방지 이어폰을 제공하는 것이다.The present invention has been made to solve the above problems, an object of the present invention is to reproduce the sound by using both the air conduction method and bone conduction method when receiving a signal to reproduce the sound to increase the output to increase the volume It is possible to provide clear sound even if you do not provide a hearing loss earphone that prevents the user from hearing problems even if used for a long time.
그리고, 본 발명의 다른 목적은 보이스 코일에 의해 진동하여 소리를 재생하는 메인 진동판의 상부에 골전도 진동을 발생시키는 마스토이드를 구비함으로써, 공기전도 및 골전도 모두 사용할 수 있게 하되, 메인 진동판, 보이스코일, 자석이 구비되는 제1프레임이 수용되는 제2프레임을 구비하고, 상기 제1프레임의 하단에 보조 진동판을 구비하여, 상기 메인 진동판에서 재생한 소리 중 후부로 전파되는 소리와 반대 위상의 진동을 가함으로써, 후부로 전파되는 소리를 감쇄시켜 주며, 이어폰 내측의 후부에 위치하는 제2프레임을 밀도가 높은 금속으로 형성하고 바닥면을 두껍게 형성하여 음향 임피던스를 높여주어 이어폰의 후부로 누출되는 소리를 감쇄시켜 소리가 외부로 누출되는 것을 방지하는 난청 방지 이어폰을 제공하는 것이다.In addition, another object of the present invention is to have a mastoid for generating bone conduction vibration on the upper part of the main diaphragm vibrating by the voice coil to reproduce sound, so that both air conduction and bone conduction can be used, but the main diaphragm, A voice coil and a second frame accommodating a first frame provided with a magnet are provided, and an auxiliary diaphragm is provided at the lower end of the first frame, and has a phase opposite to that of the sound propagated to the rear of the sound reproduced by the main diaphragm. By applying vibration, the sound propagated to the rear part is attenuated, and the second frame located at the rear part of the earphone is made of dense metal and the bottom surface is made thick to increase the acoustic impedance to leak to the rear part of the earphone. It is to provide a hearing loss prevention earphone that attenuates the sound to prevent the sound from leaking to the outside.
이러한 문제점을 해결하기 위한 본 발명은;The present invention for solving this problem;
케이스와 케이스의 내측에 구비되어 소리를 재생하는 모듈부를 포함하여 이루어지는 난청 방지 이어폰에 있어서, 상기 모듈부는 상단에 메인 진동판이 구비되는 제1프레임과, 상기 메인 진동판의 하부에 연결되어 메인 진동판을 상하 이동시키는 보이스코일과, 상기 제1프레임의 내측에 상기 보이스코일에 대응되도록 구비되는 자석부와, 상기 메인 진동판의 상부에 연결되어 메인 진동판과 같이 상하 이동하는 마스토이드로 이루어지는 것을 특징으로 한다.In the hearing loss prevention earphone comprising a case and a module unit for reproducing sound in the inside of the case, wherein the module unit is connected to the lower part of the main diaphragm and the first frame and the main diaphragm is provided on the top of the main diaphragm A voice coil to be moved, a magnet part provided to correspond to the voice coil inside the first frame, and a mastoid connected to an upper portion of the main diaphragm to move up and down like a main diaphragm.
여기서, 상기 자석부는 링형상으로 형성되는 링형 자석과, 상기 링형 자석의 내측에 구비되는 판형 자석으로 이루어지는 것을 특징으로 한다.Here, the magnet portion is characterized by consisting of a ring magnet formed in a ring shape, and a plate magnet provided inside the ring magnet.
그리고, 상기 제1프레임의 내측 하부에는 판형 자석이 설치되는 수용홈이 형성되고, 상기 수용홈의 측부에는 상기 링형 자석이 설치되는 설치홈이 형성되는 것을 특징으로 한다.And, the inner lower portion of the first frame is formed with a receiving groove in which the plate-shaped magnet is installed, the side of the receiving groove is characterized in that the installation groove in which the ring-shaped magnet is installed is formed.
이때, 상기 수용홈의 하면에는 제1프레임을 상하 관통하는 설치공이 형성되고, 상기 설치공에는 고정공이 형성되는 제1고정부재가 설치되며, 상기 판형 자석의 상부에는 판형 자석을 제1고정부재에 고정하는 제2고정부재가 구비되는 것을 특징으로 한다.In this case, an installation hole penetrating the first frame up and down is formed in the lower surface of the receiving groove, and a first fixing member having a fixing hole is installed in the installation hole, and a plate magnet is attached to the first fixing member on the upper portion of the plate magnet. A second fixing member for fixing is provided.
여기서, 상기 제2고정부재의 하면에는 판형 자석을 상하관통하는 고정핀이 형성되고, 상기 제1고정부재의 중심부에는 상기 고정핀의 하단이 삽입되는 고정공이 형성되는 것을 특징으로 한다.Here, a fixing pin for vertically penetrating the plate-shaped magnet is formed on the lower surface of the second fixing member, a fixing hole for inserting the lower end of the fixing pin is formed in the center of the first fixing member.
한편, 상기 제1고정부재는 제1프레임의 하부로 돌출되도록 형성되고, 상기 제1고정부재의 하면에는 메인 진동판과 반대 위상의 파장을 생성하는 보조 진동판이 구비되는 것을 특징으로 한다.On the other hand, the first fixing member is formed to protrude to the lower portion of the first frame, characterized in that the lower surface of the first fixing member is provided with an auxiliary diaphragm for generating a wavelength of a phase opposite to the main diaphragm.
여기서, 상기 제1프레임의 외측에는 제2프레임이 더 구비되는 것을 특징으로 한다.Here, the second frame is further provided on the outside of the first frame.
이때, 상기 제2프레임의 내측 바닥면에는 감쇄돌부가 더 형성되는 것을 특징으로 한다.At this time, the attenuation protrusions are further formed on the inner bottom surface of the second frame.
그리고, 상기 보조 진동판은 상기 고정핀의 하면과 감쇄돌부의 중심부와 결합되는 것을 특징으로 한다.The auxiliary diaphragm is coupled to the lower surface of the fixing pin and the central portion of the attenuation protrusion.
한편, 상기 제1프레임의 상단에는 메인 진동판이 안착되는 단턱부가 형성되고, 상기 단턱부의 측부에는 메인 진동판을 고정하는 걸림돌기가 형성되는 것을 특징으로 한다.On the other hand, the upper end of the first frame is formed with a stepped portion is the main diaphragm is seated, characterized in that the side projections for fixing the main diaphragm is formed.
여기서, 상기 메인 진동판의 중심부 하면에는 제2샤프트가 부착되고, 상기 제2샤프트의 하단에는 고정플레이트가 형성되며, 상기 고정플레이트에는 상기 보이스코일이 결합되는 것을 특징으로 한다.Here, a second shaft is attached to a lower surface of the central diaphragm, a fixing plate is formed at a lower end of the second shaft, and the voice coil is coupled to the fixing plate.
또한, 상기 메인 진동판의 중심부 상면에는 제1샤프트가 부착되고, 상기 제1샤프트의 상단에는 마스토이드가 결합되는 것을 특징으로 한다.In addition, the first shaft is attached to the upper surface of the central portion of the main diaphragm, characterized in that the mastoid is coupled to the upper end of the first shaft.
이때, 상기 마스토이드의 하면에는 가장자리 하면에 링형홈이 형성되는 골전도 플레이트가 설치되는 것을 특징으로 한다.At this time, the lower surface of the mastoid is characterized in that the bone conduction plate is formed on the lower surface of the edge is formed.
상기한 구성의 본 발명에 따르면, 신호를 수신하여 소리를 재생할 때, 공기전도 방식과 골전도 방식 모두를 사용하여 소리를 재생하도록 하여 출력을 높여 볼륨을 크게 하지 않더라도 또렷한 소리를 전달할 수 있어 사용자가 장시간 사용하더라도 청각에 이상이 발생하지 않도록 하는 효과가 있다.According to the present invention of the above configuration, when receiving a signal to reproduce the sound, by using both the air conduction method and bone conduction method to reproduce the sound to output a clear sound even without increasing the volume to increase the output Even if it is used for a long time, there is an effect to prevent abnormalities in hearing.
그리고, 본 발명은 보이스 코일에 의해 진동하여 소리를 재생하는 메인 진동판의 상부에 골전도 진동을 발생시키는 마스토이드를 구비함으로써, 공기전도 및 골전도 모두 사용할 수 있게 하되, 메인 진동판, 보이스코일, 자석이 구비되는 제1프레임이 수용되는 제2프레임을 구비하고, 상기 제1프레임의 하단에 보조 진동판을 구비하여, 상기 메인 진동판에서 재생한 소리 중 후부로 전파되는 소리와 반대 위상의 진동을 가함으로써, 후부로 전파되는 소리를 감쇄시켜 주며, 이어폰 내측의 후부에 위치하는 제2프레임을 밀도가 높은 금속으로 형성하고 바닥면을 두껍게 형성하여 음향 임피던스를 높여주어 이어폰의 후부로 누출되는 소리를 감쇄시켜 소리가 외부로 누출되는 것을 방지하는 효과가 있다.In addition, the present invention is provided with a mastoid for generating bone conduction vibrations on the upper part of the main diaphragm vibrating by the voice coil to reproduce sound, so that both air conduction and bone conduction can be used, but the main diaphragm, voice coil, A second frame accommodating a first frame provided with a magnet; an auxiliary diaphragm is provided at a lower end of the first frame, and a vibration of a phase opposite to that propagated to the rear of the sound reproduced by the main diaphragm is applied. By attenuating the sound propagated to the rear part, the second frame located at the rear part of the earphone is made of dense metal and the bottom surface is made thick to increase the acoustic impedance to attenuate the sound leaking to the rear part of the earphone. This prevents the sound from leaking to the outside.
도 1은 종래의 이어폰의 사시도이다.1 is a perspective view of a conventional earphone.
도 2는 종래의 이어폰의 사시도이다.2 is a perspective view of a conventional earphone.
도 3은 본 발명에 따른 난청 방지 이어폰의 사시도이다.3 is a perspective view of the deafness earphone according to the present invention.
도 4는 본 발명에 따른 난청 방지 이어폰의 내부에 구비되는 모듈부의 분리 단면도이다.Figure 4 is an exploded cross-sectional view of the module unit provided inside the hearing loss prevention earphone according to the invention.
도 5는 본 발명에 따른 난청 방지 이어폰의 모듈부의 단면도이다.5 is a cross-sectional view of the module unit of the hearing loss prevention earphone according to the present invention.
이하, 첨부한 도면을 참조하여 본 발명의 바람직한 실시 예를 보다 상세하게 설명한다. 도면상의 동일한 구성요소에 대해서는 동일한 참조부호를 사용하고 동일한 구성요소에 대해서 중복된 설명은 생략한다. 그리고, 본 발명은 다수의 상이한 형태로 구현될 수 있고, 기술된 실시 예에 한정되지 않음을 이해하여야 한다. Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. The same reference numerals are used for the same elements in the drawings, and duplicate descriptions of the same elements are omitted. And, it is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth.
도 3은 본 발명에 따른 난청 방지 이어폰의 사시도이고, 도 4는 본 발명에 따른 난청 방지 이어폰의 내부에 구비되는 모듈부의 분리 단면도이고, 도 5는 본 발명에 따른 난청 방지 이어폰의 모듈부의 단면도이다.Figure 3 is a perspective view of the hearing loss prevention earphone according to the present invention, Figure 4 is an exploded cross-sectional view of the module portion provided in the interior of the hearing loss prevention earphone according to the present invention, Figure 5 is a cross-sectional view of the module portion of the hearing loss prevention earphone according to the present invention. .
본 발명은 난청 방지 이어폰에 관한 것으로 도 3 내지 도 5에 도시된 바와 같이 그 구성은 외형을 형성하는 케이스(200)와 상기 케이스(200)의 내측에 구비되어 소리를 재생하는 모듈(300)로 이루어지는데, 상기 모듈부(300)는 원통형상으로 형성되는 제1프레임(500)과 상기 제1프레임(500)의 상단에 구비되는 메인 진동판(510)과 상기 메인 진동판(510)의 하부에 구비되어 메인 진동판(510)을 진동시키는 보이스코일(530)과 상기 제1프레임(500)의 내측에 상기 보이스코일(530)과 대응되도록 구비되는 자석부(540)와 상기 메인 진동판(510)의 상부에 연결되는 마스토이드(520)로 이루어진다.The present invention relates to a hearing loss prevention earphone as shown in Figures 3 to 5, the configuration of the case 200 and the module 300 is provided inside the case 200 to form an appearance to reproduce the sound The module unit 300 is provided in the lower portion of the main diaphragm 510 and the main diaphragm 510 provided on the upper end of the first frame 500 and the first frame 500 is formed in a cylindrical shape. And an upper portion of the main portion of the main diaphragm 510 and the magnet portion 540 provided to correspond to the voice coil 530 inside the first frame 500 and the voice coil 530 to vibrate the main diaphragm 510. Made of mastoid 520 connected to.
여기서, 상기 제1프레임(500)의 내측에는 공간이 형성되어 전술한 보이스코일(530) 및 자석부(540)가 내측에 구비되며, 상단에는 단턱부(502)가 형성되어 상기 진동판(510)의 가장자리가 안착되는데, 상기 단턱부(502)의 측부에는 내주면을 따라 일정 간격으로 걸림돌기(504)가 형성되어 상기 메인 진동판(510)의 가장자리를 고정하여 메인 진동판(510)이 단턱부(502)에서 임의로 분리되는 것을 방지하게 된다.Here, a space is formed inside the first frame 500 such that the voice coil 530 and the magnet 540 are provided inside, and a stepped portion 502 is formed on the upper side of the diaphragm 510. The edge of the seating portion, the side of the stepped portion 502, the engaging projection 504 is formed at a predetermined interval along the inner circumferential surface to fix the edge of the main diaphragm 510 to the main diaphragm 510 stepped portion 502 ) To prevent random separation.
이때, 상기 메인 진동판(510)의 중심부 하면에는 제2샤프트(514)가 부착되고, 상기 제2샤프트(514)의 하단에는 고정플레이트(516)가 형성되는데, 상기 고정플레이트(516)에 상기 보이스코일(530)이 결합되게 된다.In this case, a second shaft 514 is attached to a lower surface of the central diaphragm 510, and a fixing plate 516 is formed at a lower end of the second shaft 514, and the voice is fixed to the fixing plate 516. Coil 530 is coupled.
따라서, 외부에서 상기 보이스코일(530)로 전기적 신호가 전송되면 보이스코일(530)에서 생성되는 전기장과 상기 자석부(540)에 의해 형성된 자기장에 의해 보이스코일(530)이 상하 진동하게 되며, 보이스코일(530)과 고정플레이트(516) 및 제2샤프트(514)로 연결된 메인 진동판(510)이 보이스코일(530)과 같이 진동하여 신호에 대응되는 소리를 재생하게 된다.Therefore, when an electrical signal is transmitted from the outside to the voice coil 530, the voice coil 530 vibrates up and down by an electric field generated by the voice coil 530 and a magnetic field formed by the magnet part 540. The main diaphragm 510 connected to the coil 530, the fixed plate 516, and the second shaft 514 vibrates like the voice coil 530 to reproduce a sound corresponding to the signal.
그리고, 상기 메인 진동판(510)의 중심부 상면에는 제1샤프트(512)가 부착되고, 상기 제1샤프트(512)의 상단에는 마스토이드(520)이 결합된다.A first shaft 512 is attached to an upper surface of the central portion of the main diaphragm 510, and a mastoid 520 is coupled to an upper end of the first shaft 512.
그래서, 상기 보이스코일(530)에 의해 메인 진동판(510)이 진동할 때, 상기 마스토이드(520)도 같이 진동하게 되며, 상기 마스토이드(520)은 일정 이상의 무게를 가지기 때문에 이어폰 전체가 진동하게 되어 공기가 아닌 피부 접촉을 통하여 소리를 전달하는 골전도 방식으로 소리를 전달하게 된다.Thus, when the main diaphragm 510 vibrates by the voice coil 530, the mastoid 520 also vibrates together, and the entire earphone is made because the mastoid 520 has a predetermined weight or more. It vibrates and delivers sound in a bone conduction manner that delivers sound through skin contact rather than air.
따라서, 상기 메인 진동판(510)에서 생성되는 소리는 공기전도 방식으로 전달되며, 상기 마스토이드(520)에서 생성되는 소리는 골전도 방식을 통하여 전달되기 때문에, 출력을 높이지 않더라도 또렷한 소리를 들을 수 있게 된다.Therefore, the sound generated by the main diaphragm 510 is transmitted by the air conduction method, and the sound generated by the mastoid 520 is transmitted through the bone conduction method, so that even if the output is not increased, a clear sound can be heard. It becomes possible.
이렇게 출력을 낮추어서 사용하게 되므로, 장시간 사용하더라도 청각에 무리를 주지않아 청각 신경이 손상되는 것을 방지할 수 있게 된다.Since the output is lowered in this way, the hearing nerve can be prevented from being damaged even if it is used for a long time without affecting the hearing.
그리고, 상기 마스토이드(520)의 하면에는 골전도 플레이트(522)가 부착되는데, 상기 골전도 플레이트(522)의 하면 가장자리에는 링형홈(524)이 형성되어, 상기 마스토이드(520)이 상하 진동할 때, 상기 골전도 플레이트(522)의 무게 및 링형홈(524)에 의해 마스토이드(520)이 좌우로 기울어지지 않고 정확하게 상하 진동을 할 수 있게 하여 원음에 가까운 소리를 골전도 방식으로 재생할 수 있게 한다.In addition, a bone conduction plate 522 is attached to a lower surface of the mastoid 520, and a ring-shaped groove 524 is formed at an edge of the lower surface of the bone conduction plate 522 so that the mastoid 520 is formed. When vibrating up and down, the weight of the bone conduction plate 522 and the ring-shaped groove 524 allows the mastoid 520 to vibrate up and down accurately without inclining from side to side, thereby producing a sound close to the original sound. To play it back.
한편, 상기 자석부(540)는 링형상으로 형성되는 링형 자석(542)과 상기 링형 자석(542)의 내측에 구비되는 판형 자석(544)로 이루어지고, 상기 링형 자석(542)과 판형 자석(544) 사이에 형성되는 공간으로 상기 보이스코일(530)이 위치하여 상하 진동하게 된다.On the other hand, the magnet portion 540 is composed of a ring-shaped magnet 542 formed in a ring shape and a plate-shaped magnet 544 provided inside the ring-shaped magnet 542, the ring-shaped magnet 542 and the plate-shaped magnet ( The voice coil 530 is positioned in a space formed between the 544 to vibrate up and down.
여기서, 상기 제1프레임(500)의 내측 하부에는 수용홈(506)이 형성되어 상기 판형 자석(544)이 위치하고, 상기 수용홈(506)의 측부에는 설치홈(508)이 형성되어 상기 링형 자석(542)이 삽입 설치된다.Here, the receiving groove 506 is formed on the inner lower portion of the first frame 500, the plate-shaped magnet 544 is located, the installation groove 508 is formed on the side of the receiving groove 506 is the ring-shaped magnet 542 is inserted.
이때, 상기 수용홈(506)의 하면에는 제1프레임(500)을 상하 관통하는 설치공(509)이 형성되는데, 상기 설치공(509)에는 설치공(509)과 동일한 형상의 제1고정부재(550)가 삽입 고정된다.In this case, an installation hole 509 penetrating the first frame 500 up and down is formed in the lower surface of the accommodation groove 506, and the installation hole 509 has a first fixing member having the same shape as the installation hole 509. 550 is inserted and fixed.
그리고, 상기 판형 자석(544)은 상기 제1고정부재(550)의 상부에 위치하며, 상기 판형 자석(544)의 상부에는 제2고정부재(560)가 구비되는데, 상기 제2고정부재(560)의 하면 중심부에는 고정핀(562)이 돌출형성되어, 상기 판형 자석(544)을 상하 관통하여 고정하게 된다.The plate magnet 544 is positioned above the first fixing member 550, and the second fixing member 560 is provided on the plate magnet 544. In the center of the lower surface of the fixing pin 562 is formed to protrude, and fixed to penetrate the plate magnet 544 up and down.
여기서, 상기 판형 자석(544)의 중심부에는 관통공(546)이 형성되고, 상기 제1고정부재(550)의 중심부에는 상기 관통공(546)에 대응되도록 고정공(552)이 형성되어 상기 고정핀(562)이 관통공(546)과 고정공(552)에 삽입되어 판형 자석(544)이 링형 자석(542)의 자력에 의해 위치가 변하는 것을 방지하게 된다.Here, a through hole 546 is formed at the center of the plate magnet 544, and a fixing hole 552 is formed at the center of the first fixing member 550 to correspond to the through hole 546. The pin 562 is inserted into the through hole 546 and the fixing hole 552 to prevent the plate magnet 544 from being changed in position by the magnetic force of the ring magnet 542.
따라서, 상기 자석부(540)를 형성하는 링형 자석(542)과 판형 자석(544)의 위치가 임의로 이동되지 않기 때문에 외부에서 전송되는 전기적 신호에 의해 보이스코일(530)이 안정적으로 상하 진동하도록 한다.Therefore, since the positions of the ring magnet 542 and the plate magnet 544 forming the magnet part 540 are not arbitrarily moved, the voice coil 530 is stably oscillated by an electrical signal transmitted from the outside. .
그리고, 상기 제1고정부재(550)는 상기 설치공(509)를 통하여 제1프레임(500)의 하부로 돌출되도록 형성되고, 상기 제1고정부재(550)의 하면에는 보조 진동판(420)이 접하게 위치한다.In addition, the first fixing member 550 is formed to protrude to the lower portion of the first frame 500 through the installation hole 509, the auxiliary diaphragm 420 is formed on the lower surface of the first fixing member 550. It is located in contact.
이때, 상기 제2고정부재(560)의 고정핀(562)의 하단은 상기 제1고정부재(550)의 하단과 동일한 위치로 형성되며, 상기 고정핀(562)의 하면이 상기 보조 진동판(420)의 중심부에 부착되게 된다.At this time, the lower end of the fixing pin 562 of the second fixing member 560 is formed at the same position as the lower end of the first fixing member 550, the lower surface of the fixing pin 562 is the auxiliary diaphragm 420 ) Will be attached to the center.
또한, 상기 제1프레임(500)의 외측에는 제2프레임(400)이 구비되는데, 상기 제2프레임(400)은 원통형상으로 형성되고 내측 바닥면에는 감쇄돌부(410)가 형성되어 내부에 수용되는 제1프레임(500)의 하단에 구비되는 보조 진동판(420)이 상기 감쇄돌부(410)의 상면에 접하게 된다.In addition, the second frame 400 is provided on the outside of the first frame 500, the second frame 400 is formed in a cylindrical shape and the attenuation protrusion 410 is formed on the inner bottom surface is accommodated therein The auxiliary diaphragm 420 provided at the lower end of the first frame 500 is in contact with the upper surface of the attenuation protrusion 410.
여기서, 상기 감쇄돌부(410)의 상면 중심부와 상기 보조 진동판(420)이 접착 결합되게 되어, 상기 보조 진동판(420)은 자유롭게 진동할 수 있게 된다.Here, the upper center portion of the attenuation protrusion 410 and the auxiliary diaphragm 420 are adhesively coupled, so that the auxiliary diaphragm 420 may vibrate freely.
즉, 상기 제1프레임(500)의 상부에 구비되는 메인 진동판(510)이 보이스코일(530) 및 자석부(540)에 의해 진동하면서 소리를 재생하게 되는데, 상기 메인 진동판(510)에 의해 재생되는 소리는 마스토이드(520) 방향으로 전파될 수도 있지만, 보조 진동판(420)이 형성된 방향으로 전파되기도 한다.That is, the main diaphragm 510 provided on the upper portion of the first frame 500 vibrates by the voice coil 530 and the magnet part 540 to reproduce sound, and the main diaphragm 510 reproduces the sound. The sound may propagate in the direction of the mastoid 520, but may also propagate in the direction in which the auxiliary diaphragm 420 is formed.
이때, 상기 마스토이드(520)에 의하여 제1,2케이스(500,400)가 같이 진동하게 되고, 그에 따라 상기 보조 진동판(420)이 진동하면서 소리를 재생하게 되는데, 상기 보조 진동판(420)에서 재생되는 소리의 위상이 상기 메인 진동판(510)에서 재생된 소리의 위상과 반대위상으로 형성되기 때문에 메인 진동판(510)에서 재생되어 보조 진동판(420) 방향으로 전파된 소리는 서로 상쇄되어 소리가 약해지게 된다.At this time, the first and second cases 500 and 400 vibrate together by the mastoid 520, thereby reproducing sound while the auxiliary diaphragm 420 vibrates and is reproduced by the auxiliary diaphragm 420. Since the phase of the sound is formed in a phase opposite to the phase of the sound reproduced by the main diaphragm 510, the sounds reproduced by the main diaphragm 510 and propagated toward the auxiliary diaphragm 420 cancel each other to weaken the sound. do.
즉, 상기 메인 진동판(510)은 보이스코일(530)에 의해 상하 진동되어 소리를 재생시키게 되고, 상기 메인 진동판(510)의 진동에 의해 제1프레임(500)의 진동에 의해 제1프레임(500)의 하단에 설치된보조 진동판(420)이 진동하게 되므로, 메인 진동판(510)에서 재생된 소리와는 위상차이가 발생하게 된다.That is, the main diaphragm 510 is vibrated up and down by the voice coil 530 to reproduce sound, and the first frame 500 is vibrated by the first frame 500 by the vibration of the main diaphragm 510. Since the auxiliary diaphragm 420 installed at the bottom of the vibration vibrate, a phase difference is generated from the sound reproduced by the main diaphragm 510.
이때, 메인 진동판(510)과 보조 진동판(420)에 의해 재생되는 소리는 완전히 반대 위상이거나, 어느 정도 차이가 있는 위상일 수 있어, 위상 차이에 의하여 메인 진동판(510)과 보조 진동판(420)에 의해 재생되는 소리는 서로 감쇄 작용을 하여 이어폰의 후부로 향하는 소리를 줄여주게 된다.In this case, the sound reproduced by the main diaphragm 510 and the subsidiary diaphragm 420 may be completely opposite phases, or may be phases with a certain degree of difference, and thus, the main diaphragm 510 and the subsidiary diaphragm 420 may have different phases. The sound reproduced by the attenuate action to reduce the sound toward the rear of the earphone.
그리고, 상기 제1프레임(500)은 무게가 가볍고 밀도가 낮은 플라스틱 재질로 이루어지고, 상기 제2프레임(400)은 밀도가 높은 금속재질로 이루어지고, 상기 제2프레임(400)의 내측 바닥면에는 감쇄돌부(410)가 형성되어 바닥면의 두께가 두꺼워 지게 된다.In addition, the first frame 500 is made of a light weight and low density plastic material, the second frame 400 is made of a high density metal material, the inner bottom surface of the second frame 400 Attenuation protrusions 410 are formed in the thickness of the bottom surface becomes thick.
따라서, 두께가 두껍거나 밀도가 높을 경우 음향임피던스 값은 커지게 되어 소리가 전달될 때, 소리의 감쇄가 크게 발생하게 되므로 본 발명에서는 제2프레임(400)은 밀도가 높은 금속으로 이루어지고, 바닥면은 감쇄돌부(410)에 의해 두께가 두꺼워서 바닥면을 통하여 외부로 누출되는 소리는 거의 상쇄되어 외부로 소리가 누출되지 않게 된다.Therefore, when the thickness is high or the density is high, the acoustic impedance value becomes large, and when the sound is transmitted, the attenuation of the sound is greatly generated. In the present invention, the second frame 400 is made of a high density metal, The surface is thick by the attenuation protrusion 410 so that the sound leaking to the outside through the bottom surface is almost canceled so that the sound does not leak to the outside.
즉, 상기 모듈부(300)에서 마스토이드(520)가 위치하는 부분은 이어폰의 케이스(200)의 전부에 형성된 삽입부(210) 방향으로 위치하게 되고, 보조 진동판(420)이 위치하는 부분은 삽입부(210)의 타측 방향에 위치하게 되어, 사용자가 본 발명의 이어폰을 사용할 경우 삽입부(210)를 통하여 전달되는 소리는 감쇄 현상 없이 또렷하게 들리지만, 삽입부(210)의 타측 방향에서는 거의 모든 소리가 감쇄되어 외부로 소음이 누출되지 않게 된다.That is, the part where the mastoid 520 is located in the module part 300 is positioned in the direction of the insertion part 210 formed in the entirety of the case 200 of the earphone, and the part where the auxiliary diaphragm 420 is located. Is located in the other direction of the insertion unit 210, when the user uses the earphone of the present invention, the sound transmitted through the insertion unit 210 is clearly heard without attenuation phenomenon, but almost in the other direction of the insertion unit 210 All sounds are attenuated to prevent noise from leaking outside.
따라서, 사용자는 사람이 많은 공공장소에서 이어폰을 사용하더라도 외부로 소음이 누출되지 않아 주변 사람들에게 소음으로 인한 피해를 주는 것을 방지할 수 있게 된다.Therefore, even if the user uses the earphones in many public places, the noise does not leak to the outside, thereby preventing damage to the surrounding people due to the noise.
이상에서 본 발명의 바람직한 실시 예를 설명하였으나, 본 발명의 권리범위는 이에 한정되지 않으며, 본 발명의 실시 예와 실질적으로 균등한 범위에 있는 것까지 본 발명의 권리 범위가 미치는 것으로 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형 실시가 가능한 것이다.Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to the scope of the present invention to those which are substantially equivalent to the embodiments of the present invention. Various modifications can be made by those skilled in the art without departing from the scope of the present invention.

Claims (13)

  1. 케이스와 케이스의 내측에 구비되어 소리를 재생하는 모듈부를 포함하여 이루어지는 난청 방지 이어폰에 있어서,In the hearing loss prevention earphones comprising a case and a module unit provided inside the case to reproduce sound,
    상기 모듈부는 상단에 메인 진동판이 구비되는 제1프레임과,The module unit and the first frame is provided with a main diaphragm on the top;
    상기 메인 진동판의 하부에 연결되어 메인 진동판을 상하 이동시키는 보이스코일과,A voice coil connected to a lower portion of the main diaphragm to move the main diaphragm up and down,
    상기 제1프레임의 내측에 상기 보이스코일에 대응되도록 구비되는 자석부와,A magnet part provided to correspond to the voice coil inside the first frame;
    상기 메인 진동판의 상부에 연결되어 메인 진동판과 같이 상하 이동하는 마스토이드로 이루어지는 것을 특징으로 하는 난청 방지 이어폰.Hearing-resistant earphone, characterized in that made of a mastoid which is connected to the upper portion of the main diaphragm to move up and down like the main diaphragm.
  2. 제1항에 있어서,The method of claim 1,
    상기 자석부는 링형상으로 형성되는 링형 자석과,The magnet portion is a ring magnet formed in a ring shape,
    상기 링형 자석의 내측에 구비되는 판형 자석으로 이루어지는 것을 특징으로 하는 난청 방지 이어폰.Hearing-proof earphone, characterized in that consisting of a plate-shaped magnet provided inside the ring-shaped magnet.
  3. 제2항에 있어서,The method of claim 2,
    상기 제1프레임의 내측 하부에는 판형 자석이 설치되는 수용홈이 형성되고,An inner lower portion of the first frame is formed with a receiving groove in which the plate magnet is installed,
    상기 수용홈의 측부에는 상기 링형 자석이 설치되는 설치홈이 형성되는 것을 특징으로 하는 난청 방지 이어폰.Hearing-proof earphone, characterized in that the installation groove is formed in the side of the receiving groove is the ring-shaped magnet is installed.
  4. 제3항에 있어서,The method of claim 3,
    상기 수용홈의 하면에는 제1프레임을 상하 관통하는 설치공이 형성되고,The lower surface of the receiving groove is provided with an installation hole penetrating the first frame up and down,
    상기 설치공에는 고정공이 형성되는 제1고정부재가 설치되며,The installation hole is provided with a first fixing member in which a fixing hole is formed,
    상기 판형 자석의 상부에는 판형 자석을 제1고정부재에 고정하는 제2고정부재가 구비되는 것을 특징으로 하는 난청 방지 이어폰.The hearing loss prevention earphone, characterized in that the upper portion of the plate magnet is provided with a second fixing member for fixing the plate-shaped magnet to the first fixing member.
  5. 제4항에 있어서,The method of claim 4, wherein
    상기 제2고정부재의 하면에는 판형 자석을 상하관통하는 고정핀이 형성되고,A fixing pin is formed on the lower surface of the second fixing member to vertically penetrate the plate magnet.
    상기 제1고정부재의 중심부에는 상기 고정핀의 하단이 삽입되는 고정공이 형성되는 것을 특징으로 하는 난청 방지 이어폰.Hearing-proof earphones, characterized in that the fixing hole is inserted into the lower end of the fixing pin in the center of the first fixing member.
  6. 제5항에 있어서,The method of claim 5,
    상기 제1고정부재는 제1프레임의 하부로 돌출되도록 형성되고,The first fixing member is formed to protrude to the bottom of the first frame,
    상기 제1고정부재의 하면에는 메인 진동판과 반대 위상의 파장을 생성하는 보조 진동판이 구비되는 것을 특징으로 하는 난청 방지 이어폰.The lower surface of the first fixing member is an anti-deaf earphone, characterized in that the auxiliary diaphragm for generating a wavelength of a phase opposite to the main diaphragm.
  7. 제6항에 있어서,The method of claim 6,
    상기 제1프레임의 외측에는 제2프레임이 더 구비되는 것을 특징으로 하는 난청 방지 이어폰.The hearing loss prevention earphones, characterized in that the second frame is further provided on the outside of the first frame.
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 제2프레임의 내측 바닥면에는 감쇄돌부가 더 형성되는 것을 특징으로 하는 난청 방지 이어폰.The hearing loss prevention earphones, characterized in that the attenuation protrusions are further formed on the inner bottom surface of the second frame.
  9. 제8항에 있어서,The method of claim 8,
    상기 보조 진동판은 상기 고정핀의 하면과 감쇄돌부의 중심부와 결합되는 것을 특징으로 하는 난청 방지 이어폰.The auxiliary diaphragm is a hearing loss prevention earphone, characterized in that coupled to the lower surface of the fixing pin and the central portion of the attenuation protrusion.
  10. 제1항에 있어서,The method of claim 1,
    상기 제1프레임의 상단에는 메인 진동판이 안착되는 단턱부가 형성되고,The upper end of the first frame is formed with a stepped portion for mounting the main diaphragm,
    상기 단턱부의 측부에는 메인 진동판을 고정하는 걸림돌기가 형성되는 것을 특징으로 하는 난청 방지 이어폰.The hearing loss prevention earphones, characterized in that the side projections are formed with a locking projection for fixing the main diaphragm.
  11. 제1항에 있어서,The method of claim 1,
    상기 메인 진동판의 중심부 하면에는 제2샤프트가 부착되고,The second shaft is attached to the lower surface of the central portion of the main diaphragm,
    상기 제2샤프트의 하단에는 고정플레이트가 형성되며,A fixing plate is formed at the lower end of the second shaft,
    상기 고정플레이트에는 상기 보이스코일이 결합되는 것을 특징으로 하는 난청 방지 이어폰.Hearing loss prevention earphones, characterized in that the voice coil is coupled to the fixed plate.
  12. 제1항에 있어서,The method of claim 1,
    상기 메인 진동판의 중심부 상면에는 제1샤프트가 부착되고,The first shaft is attached to the upper surface of the central portion of the main diaphragm,
    상기 제1샤프트의 상단에는 마스토이드가 결합되는 것을 특징으로 하는 난청 방지 이어폰.Hearing loss prevention earphones, characterized in that the mastoid is coupled to the upper end of the first shaft.
  13. 제12항에 있어서,The method of claim 12,
    상기 마스토이드의 하면에는 가장자리 하면에 링형홈이 형성되는 골전도 플레이트가 설치되는 것을 특징으로 하는 난청 방지 이어폰.Hearing loss prevention earphones, characterized in that the lower surface of the mastoid is provided with a bone conduction plate is formed with a ring-shaped groove on the lower surface of the edge.
PCT/KR2016/003765 2015-04-14 2016-04-11 Earphones for preventing hearing loss WO2016167521A1 (en)

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KR1020150052700A KR101634755B1 (en) 2015-04-14 2015-04-14 a earphone for prevention of hearing loss

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