WO2020206775A1 - Structure de sortie sonore directionnelle proche de l'oreille, et lunettes audio - Google Patents

Structure de sortie sonore directionnelle proche de l'oreille, et lunettes audio Download PDF

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Publication number
WO2020206775A1
WO2020206775A1 PCT/CN2019/085750 CN2019085750W WO2020206775A1 WO 2020206775 A1 WO2020206775 A1 WO 2020206775A1 CN 2019085750 W CN2019085750 W CN 2019085750W WO 2020206775 A1 WO2020206775 A1 WO 2020206775A1
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WO
WIPO (PCT)
Prior art keywords
sound
cavity
ear
hole
sound output
Prior art date
Application number
PCT/CN2019/085750
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English (en)
Chinese (zh)
Inventor
黄海萍
Original Assignee
深圳市广扬科技有限公司
深圳市声临其境科技有限公司
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Filing date
Publication date
Application filed by 深圳市广扬科技有限公司, 深圳市声临其境科技有限公司 filed Critical 深圳市广扬科技有限公司
Publication of WO2020206775A1 publication Critical patent/WO2020206775A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G02C11/06—Hearing aids
    • 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

Definitions

  • This application relates to audio equipment, and more specifically to a near-ear directional sound output structure and its audio glasses
  • the Chinese patent "A New Type of Glasses” discloses a new type of glasses, including a spectacle frame, temples hingedly arranged on both sides of the spectacle frame, a circuit board, a Bluetooth chip, a microphone radio chip, an audio driver chip, and a speaker And a battery, wherein the temple includes a first shell and a second shell that are snap-connected, the first shell has a mounting cavity, the circuit board, the Bluetooth chip, the microphone radio chip, The audio driver chip, the speaker, and the battery are respectively fixedly arranged in the mounting cavity, and a plurality of sound outlets are opened on the lower side of the first housing near the speaker; and the circuit board is provided with Switch button, the switch button penetrates the lower side of the first housing; the Bluetooth chip, the microphone radio chip and the audio driver chip are fixedly arranged on the circuit board, the speaker and the speaker The batteries are respectively electrically connected with the circuit board; the circuit board is provided with a charging contact, and the charging contact penetrates through the lower side of the first housing.
  • the purpose of the present application is to overcome the defects of the prior art and provide a directional sound output structure near the ear and audio glasses.
  • a directional sound output structure close to the ear comprising a mounting cavity and a sound generator arranged in the mounting cavity; the mounting cavity is provided with a plurality of sound holes; the sound holes pass through the sound cavity provided Connect with the speaker;
  • the sound hole includes a first sound hole arranged close to the ear, and a second sound hole arranged far from the ear
  • the first sound hole is arranged close to the sounder, and the second sound hole is arranged farther than the sounder; the second sound hole communicates with the sounder through a second sound cavity provided.
  • a further technical solution is: further comprising a third sound outlet; the third sound outlet communicates with the sounder through a third sound cavity provided.
  • the first sound outlet is communicated with the sounder through a first sound-out cavity; the first sound-out cavity is provided with a sound guide wall, so that the sound of the sounder can pass from the sound guide wall After reflection, it comes out from the first sound hole.
  • a further technical solution is as follows: the sound generator is connected to the mounting cavity through a mounting seat provided; the mounting seat is arranged close to the first sound outlet cavity.
  • the further technical solution is: a plurality of installation protrusions are provided in the installation cavity; the installation seat is provided with an installation groove matching the installation protrusions; and the installation cavity is provided with a plurality of installation protrusions;
  • the installation seat is provided with an installation groove matching the installation protrusion; the installation seat is detachably fixed in the installation cavity through the installation groove and the installation protrusion.
  • a further technical solution is as follows: the third sound outlet is communicated with the back cavity of the sound generator through the third sound cavity; the back cavity is arranged in the opposite direction of the sound output direction of the sound generator.
  • the second sound outlet is communicated with the back cavity of the sound generator through the second sound cavity; the first sound cavity is connected to the third sound cavity and the second sound outlet through the sound device Sound cavity partition.
  • a further technical solution is that the inner wall of the third sound outlet cavity relative to the third sound outlet hole is an arc structure.
  • the installation cavity is constituted by a housing inner cavity; the outer side of the housing close to the first sound-out cavity is an arc-shaped recess; the first sound-out hole is arranged in The arc-shaped recessed portion is such that the first sound hole has an arc-shaped structure and faces the ear hole.
  • An audio glasses for directional sound output comprising a glasses body, the above-mentioned directional sound output structure, a control circuit and a battery; the directional sound output structure is arranged on the ears of the glasses body, and the control circuit , The battery is located in the temple of the glasses body;
  • the first sound hole is provided at the side of the temple near the ear; the second sound hole is provided at the end of the temple
  • a further technical solution is: the mounting cavity and the sound outlet cavity are formed in the inner cavity of the temple; the first sound hole and the third sound hole are provided on the lower side of the temple.
  • the further technical solution is: a fixed cavity for installing a control circuit or a battery is provided in the eyeglass legs; the control circuit and the battery are located on the same eyeglass leg or are respectively located on the two eyeglass legs near one end of the eyeglass frame .
  • control circuit is provided with a Bluetooth module; or/and a microphone.
  • control circuit is provided with a charging port, and the charging port is provided on the lower side of the temple.
  • the directional sound output structure of the present application is provided with a number of sound holes on the mounting cavity, and the sound holes communicate with the sounder through the sound cavity, making it close to
  • the sound hole of the ear hole can propagate normal phase sound waves, and the sound hole farther than the ear hole propagates anti-phase sound waves at the time, causing interference near the ear and superimposing each other, so that a superimposed sound field is formed in the near ear area, and the sound wave in the area far away from the ear The interference cancels out, and the sound decays rapidly.
  • the sound guide wall inside the first sound cavity can direct the sound waves emitted by the sound generator to the ear holes of the human body.
  • Setting the directional sound output structure on the glasses can form audio glasses with directional sound output.
  • This application has a simple structure, the sound emitted by the sounder can form a sound field at the ear hole through the action of the directional sounding structure, and the outside of the ear can not hear the sound from the sounder in the surrounding environment due to the effect of interference cancellation, thus realizing the function of directional sounding .
  • the audio glasses make the sound reaching the human ears increase while the power of the sound generator is unchanged, and the sound transmitted to other places is weakened.
  • FIG. 1 is a three-dimensional structure diagram of a near-ear directional sound output structure of the present application
  • FIG. 2 is a front view of a directional sound output structure near the ear of the present application
  • FIG. 3 is a side view of a directional sound output structure near the ear of the present application;
  • FIG. 4 is an internal structure diagram of a near-ear directional sound output structure of the present application;
  • FIG. 5 is an internal structure diagram of a near-ear directional sound output structure of the present application.
  • FIG. 6 is an exploded view of a directional sound output structure near the ear of the present application.
  • FIG. 7 is a structural diagram of a mounting seat of a near-ear directional sound output structure of the present application.
  • FIG. 8 is a schematic view of the sound field of a near-ear directional sound output structure of the present application.
  • FIG. 9 is a three-dimensional structure diagram of an audio glasses for directional sound output in this application.
  • FIG. 1 to 9 are drawings of embodiments of the application.
  • a near-ear directional sound output structure Q as shown in FIGS. 1 to 6, includes a mounting cavity 10, and a sounder 11 provided in the mounting cavity 10.
  • the installation cavity 10 is provided with a plurality of sound holes.
  • the sound hole communicates with the sounder 11 through the sound cavity provided.
  • the sounder 11 may be a horn.
  • the sound emitted by the sounder 11 is transmitted from the sound hole after the sound cavity is adjusted.
  • the sound cavity is specially processed to make the sound propagate from the sound hole meet the requirements.
  • the sound hole includes a first sound hole 12 arranged close to the ear, and a third sound hole 13 and a second sound hole 14 arranged far from the ear.
  • the first sound hole 12 is arranged close to the sound generator 11, and the third sound hole 13 and the second sound hole 14 are arranged farther than the sound generator 11.
  • the first sound hole 12, the third sound hole 13, and the second sound hole 14 are arranged in different positions and have different functions.
  • the sound generator 11 can generate positive and anti-phase sound waves, the positive phase sound waves are transmitted through the first sound cavity 15 to the first sound hole 12, and then transmitted to the human ear through the first sound hole 12;
  • the inverted sound wave is transmitted to the third sound hole 13 and the second sound hole 14 through the third sound outlet 16 and the second sound cavity 18, and then to the environment around the ear.
  • the first sound outlet 12 communicates with the sounder 11 through the first sound outlet cavity 15.
  • the inner wall of the first sound outlet cavity 15 has an arc-shaped structure, so that after the sound emitted by the sound generator 11 propagates to the inner wall, it is emitted back to form a concentrated state, and then is transmitted from the first sound outlet 12.
  • an inclined sound guide wall is provided in the first sound outlet cavity 15, so that the sound of the sound generator 11 is reflected from the sound guide wall and then transmitted from the first sound outlet hole 12.
  • the inner wall of the first sound outlet cavity 15 serves as a sound guide wall, so that the sound generator 11 Sound can be reflected through.
  • the sound of the sound generator 11 is reflected to the ear hole after passing through the sound guide wall, thereby achieving the purpose of directional sound output.
  • the sounder 11 is connected to the mounting cavity 10 through a mounting seat 17 provided.
  • the mounting seat 17 is arranged close to the first sound outlet 15.
  • the mounting seat 17 is provided with a sound guide opening 172, so that the sound emitted by the sounder 11 can be transmitted from the first sound outlet 12 through the sound guide opening 172.
  • the mounting base 17 is provided with a fixing hole 171 for fixing the sounder 11, so that the sounder 11 is fixed to the mounting cavity 10 behind the mounting base.
  • the sound guide port 172 is set according to requirements, so that the sound of the sound generator 11 can be transmitted to the ear hole.
  • the sounder 11 may be directly installed in the installation cavity 10.
  • the mounting base 17 is provided with a mounting groove 173 matching the mounting protrusion 101.
  • the mounting base 17 is detachably fixed in the mounting cavity 10 through the mounting groove 173 and the mounting protrusion 101.
  • the inner wall of the third sound outlet cavity 16 relative to the third sound hole 13 has an arc structure, so that the sound output direction of the third sound hole 13 is determined and the sound wave energy is relatively concentrated.
  • the third sound outlet hole 13 communicates with the back cavity of the sound generator 11 through the third sound outlet cavity 16.
  • the end of the third sound output cavity 16 is in communication with the back cavity, and the back cavity is set in the opposite direction of the sound output direction of the sound generator 11.
  • the third sound outlet 13 is provided at the other end of the third sound cavity 16.
  • the third sound-out cavity 16 is a long and narrow sound-guiding cavity, and the sound emitted by the sounder 11 is reflected and interfered by the second sound-guiding cavity 16, so that the sound propagated from the third sound-out hole 13 is an inverted sound wave, and The high frequency sound waves are filtered, and the low frequency sound waves are transmitted from the third sound outlet 13.
  • the end of the second sound guide cavity 16 communicating with the back cavity is a big end, so that the sound waves of the sound generator 11 can fill the second sound guide cavity 16.
  • the second sound outlet hole 14 communicates with the back cavity of the sound generator 11 through the second sound outlet cavity 18.
  • One end of the second sound outlet cavity 18 communicates with the back cavity, and the second sound outlet hole 14 is provided at the other end of the second sound outlet cavity 18.
  • the end of the second sound outlet cavity 18 that communicates with the sounder 11 is the big end, and the cross-sectional area of the inner cavity of the second sound outlet cavity 18 gradually decreases in the direction in which it extends, and when it reaches the middle position, the second sound outlet The direction of the hole 14 gradually increases, forming a structure where the cross-sectional area of the inner cavity of the second sound cavity 18 is small in the middle and large at the two ends.
  • the reverse cross-acoustic wave of the sounder 11 is transmitted from the back cavity through the second sound outlet cavity 18 and then from the second sound outlet hole 14. Since the second sound outlet cavity 18 has a filtering effect on high-frequency sound waves, the second sound outlet A low-to-mid frequency sound wave coming out of the hole 14.
  • the third sound-out cavity 16, the second sound-out cavity 18 are respectively arranged on both sides of the back cavity, and the first sound-out cavity 15, the third sound-out cavity 16, and the second sound-out cavity 18 are located The planes are parallel to each other.
  • the installation cavity 10 is constituted by the inner cavity of the housing 21 provided.
  • the shell 21 is hollowed out inside, and the inner cavity is divided into the required first sound cavity 15, the third sound cavity 16, and the second sound cavity 18 as required.
  • the outer side of the housing 21 close to the first sound outlet cavity 15 is an arc-shaped recess 211.
  • the first sound hole 12 is provided in the arc-shaped recess 211, so that the first sound hole 12 has an arc structure.
  • the bottom of the arc-shaped recess 211 matches the upper end of the root of the human ear.
  • the first sound hole 12 is located at one end of the arc-shaped recess, so that the first sound hole 12 is directly opposite to the ear hole, so that the first sound hole 12 spreads Sound can be conducted to the eardrum through the ear hole.
  • the sound output directions of the first sound outlet hole 12 and the third sound outlet hole 13 are located on the same side of the housing 21, and the sound output direction of the second sound outlet hole 14 is the same as that of the first sound outlet hole 12 and the third sound outlet.
  • the sound outlet direction of the sound hole 13 is vertical or forms a set angle. Specifically, the first sound hole 12 and the third sound hole 13 are provided on the lower side of the housing 21 so that the direction of sound is downward, and the second sound hole 14 is provided on the outside of the housing 21, so that the The tone direction is outward.
  • the positive phase sound wave is transmitted from the first sound hole 12 near the ear hole, the reverse sound wave is transmitted through the third sound hole 13 and the second sound hole 14, and the reverse sound wave is relatively positive.
  • the cross sound wave is far away from the ear hole.
  • the normal phase sound wave and the reverse phase sound wave meet, they can produce a cancellation effect at a local position, and attenuate with distance, the sound wave has a superposition effect at the local position, and a strengthened sound field is obtained. Therefore, the sound wave can only produce a sound field in a local area ( SPL) (that is, the sound field is at the distance from the ear hole), and the sound field far away from this local area is zero.
  • SPL local area
  • the number of sound holes is not limited to three, and there may be multiple sound holes according to structural requirements and sound emission requirements.
  • An audio glasses for directional sound output includes a glasses body 20, the above-mentioned directional sound output structure Q, a control circuit 22, and a battery 23.
  • the directional sound output structure Q is arranged on the temple of the glasses body 20 close to one end of the ear.
  • the control circuit 22 and the battery 23 are provided on the temples of the glasses body 20 close to one end of the glasses frame.
  • the first sound hole 12 is provided on the side of the temple near the ear.
  • the second sound hole 14 is provided at the end of the temple, and the direction of the second sound hole 14 can be any direction.
  • the distance between the first sound hole 12 and the third sound hole 13 is Al, and the first sound hole 12 and the second sound hole
  • the distance of 14 is A2, Al: A2 is approximately equal to 1:1.
  • the installation cavity 10 is formed in the inner cavity of the temple, and the sound outlet is also provided in the temple.
  • the outer shell of the temple is formed by extending the shell 21 of the sound-emitting structure Q.
  • the housing of the temple includes a first housing 211 and a second housing 212, and the cavity formed between the first housing 211 and the second housing 212 is the installation cavity 10.
  • the installation cavity 10 is not only used to install the sound generator 11 and the sound guide cavity, but also can be used to install the control circuit 22 and the battery 23.
  • a fixed cavity 19 for installing the control circuit 22 or the battery 23 is provided in the temple.
  • the fixed cavity 19 is separated by a baffle 24 provided in the installation cavity 10, so that the fixed cavity 19 does not interfere with the sound output cavity.
  • the control circuit 22 and the battery 23 are provided on one of the temples or on the two temples respectively.
  • the battery 23 is arranged on one of the eyeglass legs
  • the control circuit 22 is arranged on the other eyeglass leg
  • the battery 23 and the control circuit 22 are connected by wires passing through the glasses frame.
  • the battery 23 and the control circuit 22 can also be arranged in the same temple.
  • the control circuit 22 has a pickup for picking up environmental sounds.
  • the sound field of the environment can be read by the pickup, and after electronic amplification, it is output to the sound generating device.
  • the amplified sound field will only be heard by the user with the device, and will not be transmitted to the surrounding users. In this way, far-field pickup can be realized.
  • the distance is played to users, such as those who need hearing assistance.
  • the control circuit 22 is provided with a Bluetooth module
  • FIG. 8 is a schematic diagram of simulated sound output.
  • the control circuit 22 is provided with a charging interface, and the charging interface is provided on the underside of the temples, which is convenient for charging and beautiful.
  • the directional sound output structure of the present application is provided with a plurality of sound holes on the mounting cavity, and the sound holes communicate with the sound generator through the sound cavity, so that the sound holes close to the ear holes can be transmitted positively.
  • Cross-acoustic waves, the sound holes farther than the earholes propagate antiphase sound waves at the time, causing interference near the ears, and superimposing each other, so that the near ear area forms a superimposed sound field, and the sound wave interference in the area away from the ears cancels out, and the sound attenuates rapidly.
  • the sound guide wall inside the first sound cavity can direct the sound waves emitted by the sound generator to the ear holes of the human body.
  • Setting the directional sound output structure on the glasses can form audio glasses with directional sound output.
  • This application has a simple structure, the sound emitted by the sounder can form a sound field at the ear hole through the action of the directional sounding structure, and the ear Due to the effect of interference cancellation on the outside of the flower, the surrounding environment cannot hear the sound from the speaker, so that the function of directional pronunciation is realized.
  • the audio glasses make the sound reaching the human ears increase while the power of the sound generator is unchanged, and the sound transmitted to other places is weakened.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Eyeglasses (AREA)
  • Headphones And Earphones (AREA)

Abstract

La présente invention concerne une structure de sortie sonore directionnelle proche de l'oreille, et une paire de lunettes audio. Une structure de sortie sonore directionnelle proche de l'oreille, comprenant une cavité de montage et un dispositif d'émission sonore disposé dans la cavité de montage, la cavité de montage étant pourvue de trous de sortie sonore ; les trous de sortie sonore sont en communication avec le dispositif d'émission sonore au moyen de cavités de sortie sonore fournies ; les trous de sortie sonore comprennent un premier trou de sortie sonore disposé proche d'une oreille, et un second trou de sortie sonore disposé loin de l'oreille ; le premier trou de sortie sonore est agencé proche du dispositif d'émission sonore ; et le second trou de sortie sonore est disposé loin du dispositif d'émission sonore, et le second trou de sortie sonore est en communication avec le dispositif d'émission sonore au moyen d'une seconde cavité de sortie sonore fournie. Un son émis par un dispositif d'émission sonore peut former un champ sonore au niveau d'un trou d'oreille sous l'action d'une structure d'émission sonore directionnelle, et le son émis par le dispositif d'émission sonore ne peut pas être entendu dans un environnement ambiant à l'extérieur d'une oreille en raison d'un effet d'annulation d'interférence, ce qui permet d'obtenir la fonction d'émission sonore directionnelle. Selon la paire de lunettes audio, au moyen de l'effet directionnel d'une structure de sortie sonore directionnelle, dans la mesure où la puissance d'un dispositif d'émission sonore est inchangée, un son atteignant une oreille d'un corps humain est amélioré tandis que les sons propagés à d'autres endroits sont atténués.
PCT/CN2019/085750 2019-04-12 2019-05-07 Structure de sortie sonore directionnelle proche de l'oreille, et lunettes audio WO2020206775A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910296023.4A CN109862496A (zh) 2019-04-12 2019-04-12 一种近耳的定向出音结构及其音频眼镜
CN201910296023.4 2019-04-12

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WO2020206775A1 true WO2020206775A1 (fr) 2020-10-15

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WO (1) WO2020206775A1 (fr)

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US11835798B2 (en) 2018-12-12 2023-12-05 Solos Technology Limited Eyewear systems, apparatuses, and methods for providing assistance to a user
US11871174B1 (en) * 2018-12-12 2024-01-09 Solos Technology Limited Personalized directional audio for head-worn audio projection systems, apparatuses, and methods

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CN110554520B (zh) * 2019-08-14 2020-11-20 歌尔股份有限公司 一种智能头戴设备
CN110830867B (zh) 2019-11-01 2021-09-17 歌尔股份有限公司 一种智能头戴设备
CN110856067B (zh) * 2019-11-01 2022-03-18 歌尔股份有限公司 一种智能头戴设备
CN110933548A (zh) * 2019-11-22 2020-03-27 歌尔股份有限公司 一种智能头戴设备
CN110944262A (zh) * 2019-11-22 2020-03-31 歌尔股份有限公司 智能头戴设备
CN111458904A (zh) * 2020-04-14 2020-07-28 深圳市深科创投科技有限公司 一种平衡式音频镜腿和音频眼镜
CN111770420B (zh) * 2020-08-28 2020-12-04 歌尔光学科技有限公司 可穿戴发声机构、颈带耳机以及头戴显示设备
CN113225643B (zh) * 2021-04-29 2022-11-22 歌尔光学科技有限公司 一种音频装置及智能头戴设备
CN113556655B (zh) * 2021-07-07 2023-01-24 歌尔股份有限公司 智能头戴设备

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EP2717550A1 (fr) * 2012-10-04 2014-04-09 Acer Incorporated Appareil portable avec un écouteur et deux trous acoustiques
CN105227719A (zh) * 2015-10-14 2016-01-06 广东欧珀移动通信有限公司 一种移动终端
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US11871174B1 (en) * 2018-12-12 2024-01-09 Solos Technology Limited Personalized directional audio for head-worn audio projection systems, apparatuses, and methods

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