WO2018076605A1 - Head-mountable noise-reducing earphones - Google Patents

Head-mountable noise-reducing earphones Download PDF

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Publication number
WO2018076605A1
WO2018076605A1 PCT/CN2017/078135 CN2017078135W WO2018076605A1 WO 2018076605 A1 WO2018076605 A1 WO 2018076605A1 CN 2017078135 W CN2017078135 W CN 2017078135W WO 2018076605 A1 WO2018076605 A1 WO 2018076605A1
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WO
WIPO (PCT)
Prior art keywords
head
noise reduction
microphone
shell
mounted noise
Prior art date
Application number
PCT/CN2017/078135
Other languages
French (fr)
Chinese (zh)
Inventor
谢刚
贡维勇
吴海全
师瑞文
Original Assignee
深圳市冠旭电子股份有限公司
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Application filed by 深圳市冠旭电子股份有限公司 filed Critical 深圳市冠旭电子股份有限公司
Publication of WO2018076605A1 publication Critical patent/WO2018076605A1/en

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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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • 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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/01—Hearing devices using active noise cancellation

Definitions

  • the present invention relates to the field of earphone technology, and in particular, to a head-mounted noise canceling earphone.
  • Noise-cancelling headphones not only reduce ambient noise, protect users' hearing, but also allow people to listen to high-quality music and enhance the enjoyment experience. Therefore, noise canceling headphones are now more and more popular among consumers, and people are increasingly demanding noise reduction effects on noise canceling headphones.
  • the speaker unit and the microphone unit for the noise canceling earphone on the market adopt a separate design, and the inner cavity of the earphone is also provided with a printed circuit board, a battery, a USB interface, a socket, etc., and it is difficult to ensure the left and right ears. It can have the same sound cavity and the same airtightness, so it is difficult to ensure that the left and right ears have a consistent frequency response curve, which affects the noise reduction effect of the earphone.
  • An object of the present invention is to provide a head-mounted noise canceling earphone, which aims to solve the technical problem that the noise canceling effect of the noise canceling earphone is affected by the difference of the left and right ear sound chambers of the existing noise canceling earphone.
  • the present invention provides a head-mounted noise canceling earphone.
  • the head-mounted noise canceling earphone comprises an active noise-reducing capsule disposed in the earphone of the head-mounted noise-cancelling earphone, the active noise-reducing capsule comprises a casing, and the casing comprises a fastening body to form a sealed cavity a front and rear casing, the active noise reduction capsule further comprising a horn assembled on the back of the front casing and located inside the sealing cavity, mounted on the front surface of the front casing and located outside the sealing cavity a microphone, and a damping piece that can be mounted on the rear case for adjusting the audio curve and the sound quality.
  • the horn includes a vibrating membrane and a voice coil connected to the vibrating membrane, and the distance between the microphone and the vibrating membrane center of the horn is 10 to 30 mm.
  • the distance between the microphone and the vibrating diaphragm center of the horn is 15 mm, 20 mm or 25 mm.
  • the front case is provided with a card slot for the microphone to be placed, and the card slot is offset from a central axis of the front case.
  • the front shell is further provided with an arc-shaped sound hole, and the sound hole is evenly distributed on the same side of the card slot with the center of the front shell as a center.
  • the front case is further provided with a coil for the connection line of the microphone, and the coil and the sound hole are respectively located at two sides of the card slot.
  • the central axes of the front case, the rear case and the horn are coincident.
  • the microphone is an omnidirectional microphone, the microphone is circular, and a plane where the microphone is located is perpendicular to a diaphragm of the horn.
  • the microphone is a condenser microphone, a digital microphone or a silicon microphone.
  • the front shell and the rear shell are connected by a snap fastener, and the joint between the front shell and the rear shell is sealed by glue, and the front shell and the rear shell are used.
  • the material is an acrylonitrile-butadiene-styrene copolymer.
  • the rear case is provided with a hole for the damping piece to be placed, and the hole has an area ranging from 15 to 30 mm 2 .
  • the damping sheet is a nylon mesh cloth, a glass fiber cloth, a copper metal mesh, an aluminum metal mesh or a stainless steel metal mesh.
  • the outer diameter of the casing ranges from 30 to 60 mm, and the thickness ranges from 10 to 25 mm.
  • the horn has a diameter ranging from 20 to 50 mm.
  • the joint of the front shell and the rear shell is treated with a glue seal.
  • the head-mounted noise canceling earphone of the present application the microphone is used to pick up a noise signal in the environment, and the mechanism of the speaker performs acoustic analysis on the collected noise signal, and then sends out
  • the music opposite to the frequency curve of the noise signal which interacts with the noise signal of the noise signal and the noise signal in the environment, can filter out the noise in the environment and obtain high quality music, thus achieving the drop.
  • the purpose of the noise is as follows: the active noise reduction capsule seals the horn in the sealed cavity, so that the left and right ears of the earphone have the same acoustic cavity, so that the microphone picks up the noise.
  • the sound signal will be more accurate, so that the noise reduction effect is more ideal; the damper sheet performs acoustic damping adjustment, thereby adjusting the audio curve and the sound quality.
  • FIG. 1 is a schematic exploded view of a head-mounted noise canceling earphone according to an embodiment of the present invention
  • FIG. 2 is a schematic top plan view of a head-mounted noise canceling earphone according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional A-A cross-sectional structural view of the head-mounted noise canceling earphone of FIG. 2.
  • connection should be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral, unless otherwise explicitly stated and defined; It can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements.
  • the head-mounted noise canceling earphone includes an active noise reduction capsule disposed in the earphone of the head-mounted noise canceling earphone, and the active noise-reducing capsule includes a casing.
  • the housing includes a front case 20 and a rear case 40 that are fastened to each other to form a sealed cavity, and the active noise reduction capsule further includes a speaker 30 assembled on the back of the front case 20 and located inside the sealed cavity, A microphone 10 mounted on the front surface of the front case 20 and outside the sealed cavity, and a damper sheet 50 mountable on the rear case 40 for adjusting an audio curve and sound quality.
  • the microphone 10 is used to pick up a noise signal in the environment, and the speaker 30 performs acoustic analysis on the collected noise signal, and then emits music having a frequency curve opposite to the noise signal.
  • This interaction with the noise signal of the noise signal and the noise signal in the environment can filter out the noise in the environment and obtain high-quality music to achieve the purpose of noise reduction.
  • the active noise reduction The capsule seals the horn 30 in the sealed cavity, so that the left and right ears of the earphone have the same acoustic cavity, so that the noise signal picked up by the microphone 10 is more accurate, and the noise reduction effect is more ideal;
  • the damper sheet 50 performs acoustic damping adjustment to adjust the audio curve and the sound quality.
  • the horn 30 includes a vibrating membrane and a voice coil connected to the vibrating membrane.
  • the distance between the microphone 10 and the vibrating membrane center of the horn 30 ranges from 10 to 30 mm.
  • the horn 30 The distance between the microphone 10 and the center of the diaphragm of the horn 30 is 15 mm, 20 mm or 25 mm; the microphone 10 is used for picking up external noise, and the microphone 10 is a condenser microphone, a digital microphone or a silicon microphone.
  • the microphone 10 has a circular shape, and the diameter of the microphone 10 ranges from 3 to 10 mm.
  • the diameter of the microphone 10 is 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm;
  • the front case 20 is provided with The card slot 21 into which the microphone 10 is placed, the card slot 21 is offset from the central axis of the front case 20, in practice, when the microphone 10 is placed in the card slot 21, the plane of the microphone 10
  • the vibrating diaphragm of the horn 30 is perpendicular to each other, such that the microphone 10 can capture the noise signal in the environment to the greatest extent, and if the plane where the microphone 10 is located and the vibrating diaphragm of the horn 30 are placed parallel to each other,
  • the effect of the microphone picking noise may be affected by the human ear;
  • the front housing 20 is further provided with an arc-shaped sound hole, and the sound hole is uniformly distributed in the center of the shell 20 at the center of the card slot 20 The same side of 2 1 , through which the microphone 10 can not fully capture the speaker 30
  • the front case 20 and the rear case 40 are connected by a female snap, and the joint between the front case 20 and the rear case 40 is sealed with glue to ensure that the active noise reduction capsule is better.
  • the front shell 20 and the rear shell 40 are made of an acrylonitrile-butadiene-styrene copolymer.
  • the rear case 40 is provided with a hole 41 for the damping piece 50 to be placed, and the hole 41 has an area ranging from 15 to 30 mm 2
  • the rear case 40 is provided with a hole 41 into which the damper sheet 50 is placed, and the hole 41 has an area of 20 mm 2 or 25 mm 2 .
  • the damper sheet 50 is a nylon mesh cloth, a glass fiber cloth, a copper metal mesh, an aluminum metal mesh or a stainless steel metal mesh.
  • the damper sheet 50 performs acoustic damping adjustment to adjust the audio curve and the sound quality.
  • the outer diameter of the housing ranges from 30 to 60 mm.
  • the outer diameter of the housing is 30 mm, 40 mm ⁇ 50 mm or 60 mm, and the thickness ranges from 10 to 25 mm.
  • the housing is The thickness is 10mm, 15mm, 20mm or 25mm.
  • the horn 30 has a diameter ranging from 20 to 50 mm.
  • the horn 30 has a diameter of 20 mm, 30 mm, 40 mm or 50 mm.
  • the speaker 30 can be placed into the housing first, and the speaker 30 can be as small as possible, which is beneficial to reduce the height and outer diameter of the entire earphone, and can not only increase the convenience of the earphone, but also facilitate the earphone.
  • the structural components are assembled and more electronic components and other structural components can be stored in the ear shell.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Headphones And Earphones (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Provided are head-mountable noise-reducing earphones, comprising an active noise-reducing capsule arranged on said head-mountable noise-reducing earphones; said active noise-reducing capsule comprises a housing; said housing comprises a front housing (20) and a rear housing (40), which snap together to form a sealed cavity; the active noise-reducing capsule also comprises a speaker (30) assembled on the back side of the front housing (20) and located on the interior of said sealed cavity, a microphone (10) mounted on the front side of the front housing (20) and located on the exterior of the sealed cavity, and a damping tab (50) which may be mounted on the rear housing (40) and used for adjusting an audio-frequency curve and audio quality. The head-mountable noise-reducing earphones are intended to solve the existing technical problem of the left and right ear acoustic cavities being different and thus causing an impact on the noise reduction performance of the noise-reducing earphones; the active noise-reducing capsule ensures that the left and right ear acoustic cavities are identical, such that the acoustic signal picked up by the microphone is more accurate, making noise reduction performance more ideal.

Description

发明名称：头戴式降噪耳机  Invention Name: Head-mounted noise canceling headphones
技术领域  Technical field
[0001] 本发明涉及耳机技术领域， 尤其涉及一种头戴式降噪耳机。  [0001] The present invention relates to the field of earphone technology, and in particular, to a head-mounted noise canceling earphone.
背景技术  Background technique
[0002] 降噪耳机不仅能够降低环境噪音， 保护用户的听力， 而且可以让人们聆听到高 品质音乐， 提升享乐体验。 所以， 现在降噪耳机越来越受到广大消费者的青睐 ， 同吋人们对降噪耳机的降噪效果要求越来越高。  [0002] Noise-cancelling headphones not only reduce ambient noise, protect users' hearing, but also allow people to listen to high-quality music and enhance the enjoyment experience. Therefore, noise canceling headphones are now more and more popular among consumers, and people are increasingly demanding noise reduction effects on noise canceling headphones.
[0003] 目前市场上的降噪耳机用的喇叭单元和麦克风单元采用分离式的设计， 而且耳 机内腔还设置有印刷电路板、 电池、 USB接口、 插座等机构， 能难保证左、 右耳 能够具备相同的声腔和相同的密闭性， 这样就很难保证左、 右耳具备一致的频 率响应曲线， 从而影响耳机的降噪效果。  [0003] At present, the speaker unit and the microphone unit for the noise canceling earphone on the market adopt a separate design, and the inner cavity of the earphone is also provided with a printed circuit board, a battery, a USB interface, a socket, etc., and it is difficult to ensure the left and right ears. It can have the same sound cavity and the same airtightness, so it is difficult to ensure that the left and right ears have a consistent frequency response curve, which affects the noise reduction effect of the earphone.
技术问题  technical problem
[0004] 本发明的目的在于提供一种头戴式降噪耳机， 旨在解决现有降噪耳机由于左、 右耳声腔不同而影响降噪耳机的降噪效果的技术问题。 问题的解决方案  [0004] An object of the present invention is to provide a head-mounted noise canceling earphone, which aims to solve the technical problem that the noise canceling effect of the noise canceling earphone is affected by the difference of the left and right ear sound chambers of the existing noise canceling earphone. Problem solution
技术解决方案  Technical solution
[0005] 针对上述技术问题， 本发明提供了一种头戴式降噪耳机。 所述头戴式降噪耳机 包括设置于所述头戴式降噪耳机耳壳内的主动降噪胶囊， 所述主动降噪胶囊包 括壳体， 所述壳体包括相互扣合形成密封腔体的前壳和后壳， 所述主动降噪胶 囊还包括组装在所述前壳背面且位于所述密封腔体的内部的喇叭、 安装在所述 前壳正面且位于所述密封腔体的外部的麦克风、 以及能够安装在所述后壳上用 以调整音频曲线及音质的阻尼片。  In view of the above technical problems, the present invention provides a head-mounted noise canceling earphone. The head-mounted noise canceling earphone comprises an active noise-reducing capsule disposed in the earphone of the head-mounted noise-cancelling earphone, the active noise-reducing capsule comprises a casing, and the casing comprises a fastening body to form a sealed cavity a front and rear casing, the active noise reduction capsule further comprising a horn assembled on the back of the front casing and located inside the sealing cavity, mounted on the front surface of the front casing and located outside the sealing cavity a microphone, and a damping piece that can be mounted on the rear case for adjusting the audio curve and the sound quality.
[0006] 优选地， 所述喇叭包括振动膜片及连接于所述振动膜片上的音圈， 所述麦克风 与所述喇叭的振动膜片中心的距离范围为 10~30mm。  [0006] Preferably, the horn includes a vibrating membrane and a voice coil connected to the vibrating membrane, and the distance between the microphone and the vibrating membrane center of the horn is 10 to 30 mm.
[0007] 优选地， 所述麦克风与所述喇叭的振动膜片中心的距离为 15mm、 20mm或者 25 mm。 [0008] 优选地， 所述前壳设置有供所述麦克风放入的卡槽， 所述卡槽偏离所述前壳的 中心轴线。 [0007] Preferably, the distance between the microphone and the vibrating diaphragm center of the horn is 15 mm, 20 mm or 25 mm. [0008] Preferably, the front case is provided with a card slot for the microphone to be placed, and the card slot is offset from a central axis of the front case.
[0009] 优选地， 所述前壳上还设有弧形的出音孔， 所述出音孔以所述前壳中心为圆心 均匀分布在所述卡槽的同一侧。  [0009] Preferably, the front shell is further provided with an arc-shaped sound hole, and the sound hole is evenly distributed on the same side of the card slot with the center of the front shell as a center.
[0010] 优选地， 所述前壳上还设置有供所述麦克风的连接线贯通的线圈， 所述线圈和 所述出音孔分别位于所述卡槽的两侧。 [0010] Preferably, the front case is further provided with a coil for the connection line of the microphone, and the coil and the sound hole are respectively located at two sides of the card slot.
[0011] 优选地， 所述前壳、 所述后壳和所述喇叭的中心轴线重合。  [0011] Preferably, the central axes of the front case, the rear case and the horn are coincident.
[0012] 优选地， 所述麦克风为全指向麦克风， 所述麦克风呈圆形， 所述麦克风所在的 平面与所述喇叭的振动膜片相互垂直。  [0012] Preferably, the microphone is an omnidirectional microphone, the microphone is circular, and a plane where the microphone is located is perpendicular to a diaphragm of the horn.
[0013] 优选地， 所述麦克风是电容式麦克风、 数字式麦克风或者硅麦克风。  [0013] Preferably, the microphone is a condenser microphone, a digital microphone or a silicon microphone.
[0014] 优选地， 所述前壳和所述后壳采用子母扣方式连接， 所述前壳和所述后壳的连 接处用胶水密封处理， 所述前壳和所述后壳采用的材料为丙烯腈-丁二烯-苯乙烯 共聚物。 [0014] Preferably, the front shell and the rear shell are connected by a snap fastener, and the joint between the front shell and the rear shell is sealed by glue, and the front shell and the rear shell are used. The material is an acrylonitrile-butadiene-styrene copolymer.
[0015] 优选地， 所述后壳设置有供所述阻尼片放入的孔洞， 所述孔洞的面积范围为 15 〜30mm 2。  [0015] Preferably, the rear case is provided with a hole for the damping piece to be placed, and the hole has an area ranging from 15 to 30 mm 2 .
[0016] 优选地， 所述阻尼片是尼龙网布、 玻璃纤维布、 铜金属网、 铝金属网或者不锈 钢金属网。  [0016] Preferably, the damping sheet is a nylon mesh cloth, a glass fiber cloth, a copper metal mesh, an aluminum metal mesh or a stainless steel metal mesh.
[0017] 优选地， 所述壳体的外径范围为 30~60mm， 厚度范围为 10~25mm。  [0017] Preferably, the outer diameter of the casing ranges from 30 to 60 mm, and the thickness ranges from 10 to 25 mm.
[0018] 优选地， 所述喇叭直径范围为 20~50mm。  [0018] Preferably, the horn has a diameter ranging from 20 to 50 mm.
[0019] 优选地， 所述前壳和所述后壳的连接处用胶水密封处理。  [0019] Preferably, the joint of the front shell and the rear shell is treated with a glue seal.
发明的有益效果  Advantageous effects of the invention
有益效果  Beneficial effect
[0020] 本发明的有益效果： 本申请的头戴式降噪耳机， 所述麦克风用以拾取环境中的 噪音信号， 所述喇叭的机构对采集到的噪音信号进行声学分析， 然后发出带有 与噪音信号的频率曲线相反的音乐， 这种带有与噪音信号的频率曲线相反的音 乐和环境中的噪音信号相互作用， 就可以过滤掉环境中的噪音， 得到高质量的 音乐， 从而达到降噪的目的； 所述的主动降噪胶囊把所述喇叭密封在所述密封 腔体中， 可以保证耳机左、 右耳具有相同的声腔， 这样所述麦克风拾取到的噪 音信号就会更加准确， 这样降噪效果就更加理想； 所述阻尼片进行声阻尼调节 ， 进而调整音频曲线及音质。 [0020] Advantageous Effects of the Invention: The head-mounted noise canceling earphone of the present application, the microphone is used to pick up a noise signal in the environment, and the mechanism of the speaker performs acoustic analysis on the collected noise signal, and then sends out The music opposite to the frequency curve of the noise signal, which interacts with the noise signal of the noise signal and the noise signal in the environment, can filter out the noise in the environment and obtain high quality music, thus achieving the drop. The purpose of the noise is as follows: the active noise reduction capsule seals the horn in the sealed cavity, so that the left and right ears of the earphone have the same acoustic cavity, so that the microphone picks up the noise. The sound signal will be more accurate, so that the noise reduction effect is more ideal; the damper sheet performs acoustic damping adjustment, thereby adjusting the audio curve and the sound quality.
对附图的简要说明  Brief description of the drawing
附图说明  DRAWINGS
[0021] 图 1是本发明实施例提供的头戴式降噪耳机的***结构示意图；  1 is a schematic exploded view of a head-mounted noise canceling earphone according to an embodiment of the present invention;
[0022] 图 2是本发明实施例提供的头戴式降噪耳机的俯视结构示意图； 2 is a schematic top plan view of a head-mounted noise canceling earphone according to an embodiment of the present invention;
[0023] 图 3是图 2中的头戴式降噪耳机的截面 A-A剖视结构示意图。 3 is a cross-sectional A-A cross-sectional structural view of the head-mounted noise canceling earphone of FIG. 2.
[0024] 上述附图所涉及的标号明细如下： [0024] The reference numerals referred to in the above drawings are as follows:
[] [表 1] [] [Table 1]
Figure imgf000005_0002
Figure imgf000005_0002
Figure imgf000005_0001
Figure imgf000005_0001
本发明的实施方式  Embodiments of the invention
[0025] 下面详细描述本发明的实施例， 所述实施例的示例在附图中示出， 其中自始至 终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。 下 面通过参考附图描述的实施例是示例性的， 旨在用于解释本发明， 而不能理解 为对本发明的限制。  The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.
[0026] 在本发明的描述中， 需要理解的是， 术语"厚度"、 "上"、 "下" "垂直"、 "平佇' 、 "底"、 "角"等指示的方位或位置关系为基于附图所示的方位或位置关系， 仅是 为了便于描述本发明和简化描述， 而不是指示或暗示所指的装置或元件必须具 有特定的方位、 以特定的方位构造和操作， 因此不能理解为对本发明的限制。  In the description of the present invention, it is to be understood that the orientation or positional relationship of the terms "thickness", "upper", "lower", "vertical", "flat", "bottom", "corner", etc. The orientation or the positional relationship based on the drawings is merely for the convenience of the description of the present invention and the description thereof, and is not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot It is understood to be a limitation of the invention.
[0027] 在本发明中， 除非另有明确的规定和限定， 术语"安装"、 "连接"等术语应做广 义理解， 例如， 可以是固定连接， 也可以是可拆卸连接， 或成一体； 可以是机 械连接， 也可以是电连接； 可以是直接相连， 也可以通过中间媒介间接相连， 可以是两个元件内部的连通或两个元件的相互作用关系。 [0028] 为了使本发明的目的、 技术方案及优点更加清楚明白， 以下结合附图及实施例 ， 对本发明进行进一步详细说明。 [0027] In the present invention, the terms "installation", "connection" and the like should be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral, unless otherwise explicitly stated and defined; It can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0029] 如图 1和图 3所示， 所述头戴式降噪耳机包括设置于所述头戴式降噪耳机耳壳内 的主动降噪胶囊， 所述主动降噪胶囊包括壳体， 所述壳体包括相互扣合形成密 封腔体的前壳 20和后壳 40， 所述主动降噪胶囊还包括组装在所述前壳 20背面且 位于所述密封腔体的内部的喇叭 30、 安装在所述前壳 20正面且位于所述密封腔 体的外部的麦克风 10、 以及能够安装在所述后壳 40上用以调整音频曲线及音质 的阻尼片 50。 本申请的戴式降噪耳机， 所述麦克风 10用以拾取环境中的噪音信 号， 所述喇叭 30对采集到的噪音信号进行声学分析， 然后发出带有与噪音信号 的频率曲线相反的音乐， 这种带有与噪音信号的频率曲线相反的音乐和环境中 的噪音信号相互作用， 就可以过滤掉环境中的噪音， 得到高质量的音乐， 从而 达到降噪的目的； 所述的主动降噪胶囊把所述喇叭 30密封在所述密封腔体中， 可以保证耳机左、 右耳具有相同的声腔， 这样所述麦克风 10拾取到的噪音信号 就会更加准确， 这样降噪效果就更加理想； 所述阻尼片 50进行声阻尼调节， 进 而调整音频曲线及音质。  [0029] As shown in FIG. 1 and FIG. 3, the head-mounted noise canceling earphone includes an active noise reduction capsule disposed in the earphone of the head-mounted noise canceling earphone, and the active noise-reducing capsule includes a casing. The housing includes a front case 20 and a rear case 40 that are fastened to each other to form a sealed cavity, and the active noise reduction capsule further includes a speaker 30 assembled on the back of the front case 20 and located inside the sealed cavity, A microphone 10 mounted on the front surface of the front case 20 and outside the sealed cavity, and a damper sheet 50 mountable on the rear case 40 for adjusting an audio curve and sound quality. In the wearable noise canceling earphone of the present application, the microphone 10 is used to pick up a noise signal in the environment, and the speaker 30 performs acoustic analysis on the collected noise signal, and then emits music having a frequency curve opposite to the noise signal. This interaction with the noise signal of the noise signal and the noise signal in the environment can filter out the noise in the environment and obtain high-quality music to achieve the purpose of noise reduction. The active noise reduction The capsule seals the horn 30 in the sealed cavity, so that the left and right ears of the earphone have the same acoustic cavity, so that the noise signal picked up by the microphone 10 is more accurate, and the noise reduction effect is more ideal; The damper sheet 50 performs acoustic damping adjustment to adjust the audio curve and the sound quality.
[0030] 所述喇叭 30包括振动膜片及连接于所述振动膜片上的音圈， 所述麦克风 10与所 述喇叭 30的振动膜片中心的距离范围为 10~30mm， 优选地， 所述麦克风 10与所 述喇叭 30的振动膜片中心的距离为 15mm、 20mm或者 25mm; 所述麦克风 10用来 拾取外界噪音， 所述麦克风 10是选用电容式麦克风、 数字式麦克风或者硅麦克 风， 所述麦克风 10呈圆形， 所述麦克风 10的直径范围是 3~10mm， 优选地， 麦克 风 10的直径为 3mm、 4mm、 5mm、 6mm、 7mm、 8mm、 9mm或者 10mm; 所述前 壳 20设置有供所述麦克风 10放入的卡槽 21， 所述卡槽 21偏离所述前壳 20的中心 轴线， 实际中当所述麦克风 10放入所述卡槽 21， 所述麦克风 10的所在的平面与 所述喇叭 30的振动膜片相互垂直， 这样所述麦克风 10可以最大程度地采集到环 境中的噪音信号， 而如果麦克风 10的所在的平面与所述喇叭 30的振动膜片相互 平行放置， 可能会因为人耳碰到而影响到麦克风拾取噪音的效果； 所述前壳 20 上还设有弧形的出音孔， 所述出音孔以前壳 20中心为圆心均匀分布在所述卡槽 2 1的同一侧， 通过所述出音孔不仅可以使所述麦克风 10充分的采集所述喇叭 30的 声音信号， 同吋可以使所述麦克风 10采集到两种清晰不同的声音信号， 这样可 以保证更好的降噪效果； 所述前壳 20上还设置有供所述麦克风 10连接线贯通的 线圈， 所述线圈位于所述卡槽 21另一侧。 [0030] The horn 30 includes a vibrating membrane and a voice coil connected to the vibrating membrane. The distance between the microphone 10 and the vibrating membrane center of the horn 30 ranges from 10 to 30 mm. Preferably, the horn 30 The distance between the microphone 10 and the center of the diaphragm of the horn 30 is 15 mm, 20 mm or 25 mm; the microphone 10 is used for picking up external noise, and the microphone 10 is a condenser microphone, a digital microphone or a silicon microphone. The microphone 10 has a circular shape, and the diameter of the microphone 10 ranges from 3 to 10 mm. Preferably, the diameter of the microphone 10 is 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm; the front case 20 is provided with The card slot 21 into which the microphone 10 is placed, the card slot 21 is offset from the central axis of the front case 20, in practice, when the microphone 10 is placed in the card slot 21, the plane of the microphone 10 The vibrating diaphragm of the horn 30 is perpendicular to each other, such that the microphone 10 can capture the noise signal in the environment to the greatest extent, and if the plane where the microphone 10 is located and the vibrating diaphragm of the horn 30 are placed parallel to each other, The effect of the microphone picking noise may be affected by the human ear; the front housing 20 is further provided with an arc-shaped sound hole, and the sound hole is uniformly distributed in the center of the shell 20 at the center of the card slot 20 The same side of 2 1 , through which the microphone 10 can not fully capture the speaker 30 The sound signal can also cause the microphone 10 to collect two distinct sound signals, which can ensure a better noise reduction effect; the front shell 20 is further provided with a coil for the microphone 10 connecting line to pass through. The coil is located on the other side of the card slot 21.
[0031] 所述前壳 20、 所述后壳 40和所述喇叭 30的中心轴线重合。 [0031] The front shell 20, the rear shell 40 and the central axis of the horn 30 coincide.
[0032] 所述前壳 20和所述后壳 40采用子母扣方式连接， 所述前壳 20和所述后壳 40的连 接处用胶水密封处理， 保证所述主动降噪胶囊具有更好的密闭性。 所述前壳 20 和所述后壳 40采用的材料为丙烯腈 -丁二烯-苯乙烯共聚物。  [0032] The front case 20 and the rear case 40 are connected by a female snap, and the joint between the front case 20 and the rear case 40 is sealed with glue to ensure that the active noise reduction capsule is better. The airtightness. The front shell 20 and the rear shell 40 are made of an acrylonitrile-butadiene-styrene copolymer.
[0033] 所述后壳 40设置有供所述阻尼片 50放入的孔洞 41， 所述孔洞 41的面积范围为 15 〜30mm 2 [0033] The rear case 40 is provided with a hole 41 for the damping piece 50 to be placed, and the hole 41 has an area ranging from 15 to 30 mm 2
， 优选地， 所述后壳 40设置有供所述阻尼片 50放入的孔洞 41， 所述孔洞 41的面 积为 20 mm 2或者 25mm 2。 Preferably, the rear case 40 is provided with a hole 41 into which the damper sheet 50 is placed, and the hole 41 has an area of 20 mm 2 or 25 mm 2 .
[0034] 所述阻尼片 50是尼龙网布、 玻璃纤维布、 铜金属网、 铝金属网或者不锈钢金属 网。 所述阻尼片 50进行声阻尼调节， 进而调整音频曲线及音质  [0034] The damper sheet 50 is a nylon mesh cloth, a glass fiber cloth, a copper metal mesh, an aluminum metal mesh or a stainless steel metal mesh. The damper sheet 50 performs acoustic damping adjustment to adjust the audio curve and the sound quality.
[0035] 所述壳体的外径范围为 30~60mm， 优选地， 所述壳体的外径为 30mm、 40mm ^ 50mm或者 60mm， 厚度范围为 10~25mm， 优选地， 所述壳体的厚度为 10mm、 15 mm、 20mm或者 25mm。 所述喇叭 30直径范围为 20~50mm， 优选地， 所述喇叭 30 直径为 20mm、 30mm. 40mm或者 50mm。 当然所述喇叭 30首先可以放置到所述 壳体内， 所述喇叭 30可以尽可能的小尺寸， 这样有利于减少整个耳机的高度和 外径， 不仅可以增加耳机的便捷性， 同吋便于和耳机的结构件装配且耳壳内可 以存放更多的电子元器件及其他的结构部件。  [0035] The outer diameter of the housing ranges from 30 to 60 mm. Preferably, the outer diameter of the housing is 30 mm, 40 mm ^ 50 mm or 60 mm, and the thickness ranges from 10 to 25 mm. Preferably, the housing is The thickness is 10mm, 15mm, 20mm or 25mm. The horn 30 has a diameter ranging from 20 to 50 mm. Preferably, the horn 30 has a diameter of 20 mm, 30 mm, 40 mm or 50 mm. Of course, the speaker 30 can be placed into the housing first, and the speaker 30 can be as small as possible, which is beneficial to reduce the height and outer diameter of the entire earphone, and can not only increase the convenience of the earphone, but also facilitate the earphone. The structural components are assembled and more electronic components and other structural components can be stored in the ear shell.
[0036] 以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发明的 精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明的保 护范围之内。  The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention. Within the scope of protection of the invention.

Claims

权利要求书 claims
一种头戴式降噪耳机， 其特征在于， 所述头戴式降噪耳机包括设置于 所述头戴式降噪耳机耳壳内的主动降噪胶囊， 所述主动降噪胶囊包括 壳体， 所述壳体包括相互扣合形成密封腔体的前壳和后壳， 所述主动 降噪胶囊还包括组装在所述前壳背面且位于所述密封腔体的内部的喇 叭、 安装在所述前壳正面且位于所述密封腔体的外部的麦克风、 以及 能够安装在所述后壳上用以调整音频曲线及音质的阻尼片。 A head-mounted noise reduction earphone, characterized in that, the head-mounted noise reduction earphone includes an active noise reduction capsule arranged in the ear shell of the head-mounted noise reduction earphone, and the active noise reduction capsule includes a shell , the housing includes a front shell and a rear shell that snap together to form a sealed cavity, and the active noise reduction capsule also includes a speaker assembled on the back of the front shell and located inside the sealed cavity, installed on the A microphone is located on the front of the front case and outside the sealed cavity, and a damping piece can be installed on the rear case to adjust the audio curve and sound quality.
根据权利要求 1所述的一种头戴式降噪耳机， 其特征在于： 所述喇叭 包括振动膜片及连接于所述振动膜片上的音圈， 所述麦克风与所述喇 叭的振动膜片中心的距离范围为 10~30mm。 A head-mounted noise reduction earphone according to claim 1, characterized in that: the speaker includes a vibrating diaphragm and a voice coil connected to the vibrating diaphragm, and the diaphragms of the microphone and the speaker The distance between the film centers ranges from 10 to 30mm.
根据权利要求 2所述的一种头戴式降噪耳机， 其特征在于： 所述麦克 风与所述喇叭的振动膜片中心的距离为 15mm、 20mm或者 25mm。 根据权利要求 1所述的一种头戴式降噪耳机， 其特征在于： 所述前壳 设置有供所述麦克风放入的卡槽， 所述卡槽偏离所述前壳的中心轴线 A head-mounted noise reduction earphone according to claim 2, characterized in that: the distance between the microphone and the center of the vibrating diaphragm of the speaker is 15mm, 20mm or 25mm. A head-mounted noise reduction earphone according to claim 1, characterized in that: the front shell is provided with a slot for the microphone to be placed, and the slot is offset from the central axis of the front shell
[权利要求 5] 根据权利要求 4所述的一种头戴式降噪耳机， 其特征在于： 所述前壳 上还设有弧形的出音孔， 所述出音孔以所述前壳中心为圆心均匀分布 在所述卡槽的同一侧。 [Claim 5] A head-mounted noise reduction earphone according to claim 4, characterized in that: the front shell is also provided with an arc-shaped sound outlet, and the sound outlet is formed in the front shell. The center of the circle is evenly distributed on the same side of the card slot.
[权利要求 6] 根据权利要求 5所述的一种头戴式降噪耳机， 其特征在于： 所述前壳 上还设置有供所述麦克风的连接线贯通的线圈， 所述线圈和所述出音 孔分别位于所述卡槽的两侧。 [Claim 6] A head-mounted noise reduction earphone according to claim 5, characterized in that: the front shell is further provided with a coil for the connecting wire of the microphone to pass through, and the coil and the The sound holes are located on both sides of the card slot.
[权利要求 7] 根据权利要求 1所述的一种头戴式降噪耳机， 其特征在于： 所述前壳[Claim 7] A head-mounted noise reduction headphone according to claim 1, characterized in that: the front shell
、 所述后壳和所述喇叭的中心轴线重合。 , the central axes of the rear shell and the speaker coincide with each other.
[权利要求 8] 根据权利要求 1所述的一种头戴式降噪耳机， 其特征在于： 所述麦克 风为全指向麦克风， 所述麦克风呈圆形， 所述麦克风所在的平面与所 述喇叭的振动膜片相互垂直。 [Claim 8] A head-mounted noise reduction headset according to claim 1, characterized in that: the microphone is an omnidirectional microphone, the microphone is circular, and the plane where the microphone is located is in contact with the speaker. The vibrating diaphragms are perpendicular to each other.
[权利要求 9] 根据权利要求 1所述的一种头戴式降噪耳机， 其特征在于： 所述麦克 风是电容式麦克风、 数字式麦克风或者硅麦克风。 [Claim 9] A head-mounted noise reduction headset according to claim 1, characterized in that: the microphone is a condenser microphone, a digital microphone or a silicon microphone.
[权利要求 10] 根据权利要求 1~9任一项所述的一种头戴式降噪耳机， 其特征在于： 所述前壳和所述后壳采用子母扣方式连接， 所述前壳和所述后壳的连 接处用胶水密封处理， 所述前壳和所述后壳采用的材料为丙烯腈-丁 二烯-苯乙烯共聚物。 [Claim 10] A head-mounted noise reduction earphone according to any one of claims 1 to 9, characterized in that: the front shell and the back shell are connected by a snap-on button, and the front shell The connection with the rear shell is sealed with glue. The material used for the front shell and the rear shell is acrylonitrile-butadiene-styrene copolymer.
[权利要求 11] 根据权利要求 1~9任一项所述的一种头戴式降噪耳机， 其特征在于： 所述后壳设置有供所述阻尼片放入的孔洞， 所述孔洞的面积范围为 15 〜30mm 2。 [Claim 11] A head-mounted noise reduction earphone according to any one of claims 1 to 9, characterized in that: the back shell is provided with a hole for the damping sheet to be placed, and the hole is Area range is 15~30mm2.
[权利要求 12] 根据权利要求 1~9任一项所述的一种头戴式降噪耳机， 其特征在于： 所述阻尼片是尼龙网布、 玻璃纤维布、 铜金属网、 铝金属网或者不锈 钢金属网。 [Claim 12] A head-mounted noise reduction earphone according to any one of claims 1 to 9, characterized in that: the damping sheet is nylon mesh, glass fiber cloth, copper metal mesh, aluminum metal mesh Or stainless steel metal mesh.
[权利要求 13] 根据权利要求 1~9任一项所述的一种头戴式降噪耳机， 其特征在于： 所述壳体的外径范围为 30~60mm， 厚度范围为 10~25mm。 [Claim 13] A head-mounted noise reduction earphone according to any one of claims 1 to 9, characterized in that: the outer diameter of the housing ranges from 30 to 60 mm, and the thickness ranges from 10 to 25 mm.
[权利要求 14] 根据权利要求 1~9任一项所述的一种头戴式降噪耳机， 其特征在于： 所述喇叭直径范围为 20~50mm。 [Claim 14] A head-mounted noise reduction earphone according to any one of claims 1 to 9, characterized in that: the diameter of the speaker ranges from 20 to 50 mm.
[权利要求 15] 根据权利要求 1~9任一项所述的一种头戴式降噪耳机， 其特征在于： 所述前壳和所述后壳的连接处用胶水密封处理。 [Claim 15] A head-mounted noise reduction earphone according to any one of claims 1 to 9, characterized in that: the connection between the front shell and the back shell is sealed with glue.
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CN206181324U (en) * 2016-10-31 2017-05-17 深圳市冠旭电子股份有限公司 Head -wearing noise reduction earphone

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