WO2017088160A1 - 一种可调音入耳式耳机 - Google Patents

一种可调音入耳式耳机 Download PDF

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Publication number
WO2017088160A1
WO2017088160A1 PCT/CN2015/095726 CN2015095726W WO2017088160A1 WO 2017088160 A1 WO2017088160 A1 WO 2017088160A1 CN 2015095726 W CN2015095726 W CN 2015095726W WO 2017088160 A1 WO2017088160 A1 WO 2017088160A1
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tuning
sound
housing
hole
sound guiding
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PCT/CN2015/095726
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English (en)
French (fr)
Inventor
袁信明
郑雷
陈汝宝
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易力声科技(深圳)有限公司
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Priority to PCT/CN2015/095726 priority Critical patent/WO2017088160A1/zh
Publication of WO2017088160A1 publication Critical patent/WO2017088160A1/zh

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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

Definitions

  • the utility model relates to an earphone, in particular to an in-ear earphone.
  • the earphones in the earphone family in-ear headphones are popular among people for their excellent portability, high-quality sound performance and excellent sound insulation.
  • the structure of the earphone can be basically divided into a fully enclosed structure, a semi-closed structure and an open structure.
  • the various structural forms are mainly designed to meet the needs of different listening environments, and the earphone cavity is fixed. Flux of flux. Since everyone's preferences for music tend to be different, the technology used in existing earphones is relatively fixed. The adjustment of the sound quality effect is realized by the adjustment control of the playback device. The earphone itself cannot adjust the sound quality effect, and the user cannot adjust the same pair of earphones according to the listening environment and the music type characteristics and their own listening habits. Good listening experience, which requires users to choose multiple pairs of headphones to meet the needs of different listening conditions.
  • the technical problem to be solved by the utility model is to provide a earphone that can conveniently adjust the sound effect to meet the needs of the user to achieve different listening effects on a pair of earphones.
  • a tunable in-ear earphone comprising a housing and a speaker unit mounted in the housing, the housing being spliced by a front shell and a rear a shell, the front end of the front shell is open and extends forward in a circumferential direction of the opening to form a connecting tube, and further comprises a sound guiding tube embedded in the connecting tube, the sound guiding tube can be opposite
  • the connecting pipe is rotated, and a vent hole is defined in a sidewall of the connecting pipe, and a sound guiding hole opposite to the vent hole is defined in a sidewall of the sound guiding pipe.
  • the tuning holes are plural, and the plurality of tuning holes are spaced apart in the circumferential direction of the sound guiding tube, and the diameters of the plurality of tuning holes are different.
  • the shape of the tuning hole is square, circular or irregular.
  • the surface of the tuning hole is covered with a gas permeable damping material.
  • the tuning hole has a diameter of 0.15 mm to 0.8 mm.
  • the tuning hole has a hole diameter of 0.8 mm, and the total damping capacity of the damping material is 70 L/m2.s-2500 L/ M2.s.
  • the damping material is a tuning paper.
  • the adjustable in-ear earphone of the utility model has one or more tuning holes on the sound guiding tube, and the sound guiding tube is rotatably mounted on the front shell, and the tuning hole and the front shell are rotated by rotating the sound guiding tube
  • the venting hole on the upper side can achieve the function of deflation tuning. It is also possible to apply different damping materials on the tuning hole to change the amount of deflation, corresponding to the vent hole on the front casing of the earphone, thereby changing the hearing effect.
  • the gas in the ear canal and the earphone cavity is shunted out from the tuning hole to protect the diaphragm from deformation due to excessive air pressure, thus ensuring the reproduction of high-fidelity sound effects.
  • FIG. 1 is a schematic structural view of an adjustable in-ear earphone of the present invention
  • Figure 2 is a cross-sectional view showing the structure of the adjustable in-ear earphone of Figure 1;
  • Figure 3 is a schematic structural view of the front case
  • FIG. 4 is a schematic structural view of a sound guiding tube
  • Figure 5 is a schematic diagram showing changes in the frequency response curve when the tuning holes are of different apertures
  • Fig. 6 is a schematic diagram showing the change of the frequency response curve when the sound-adjusting sound-adjusting paper or mesh is applied to the tuning hole.
  • the adjustable in-ear type of the present invention comprises an earphone housing and a speaker 99 mounted in the housing, the earphone housing is composed of a rear shell 1 and a front shell 2 paired stitching assembled.
  • the casing is a hollow structure, and an annular speaker fixing ring is arranged along the inner wall of the front casing 2 at the joint of the rear casing 1 and the front casing 2.
  • the edge of the speaker 99 is attached to the speaker retaining ring, and the speaker 99 is mounted in the earphone housing in the form of a diaphragm forward.
  • the front case 2 is recessed to form a sound chamber at the speaker 99, and the front end of the front case 2 is open and extends forward in the circumferential direction of the opening to form a connecting tube 3, and the connecting tube 3 communicates with the sound chamber.
  • the sound guiding tube 4 is also embedded in the connecting tube 3, and the sound guiding tube 4 can be freely rotated in the connecting tube 3.
  • the front end surface of the sound guiding tube 4 is provided with a circumferential groove for connecting the earphone rubber sleeve 5, and the sound guiding tube The back end of 4 is connected to the sound cavity.
  • a vent hole 6 is formed in the side wall of the connecting pipe 3, and in the present embodiment, the vent hole 6 has a diameter of 0.5 mm.
  • a tuning hole 7 opposite to the vent hole 6 is formed in the side wall of the sound guiding tube 4, and the position of the tuning hole 7 relative to the vent hole 6 can be adjusted by rotating the sound guiding tube 4.
  • the shape of the tuning hole 7 is circular, and of course, it may be any shape such as a square.
  • the tuning hole 7 on the sound guiding tube 4 has a plurality of tuning holes. 7 is spaced apart in the circumferential direction of the sound guiding tube 4, and the diameters of the plurality of tuning holes 7 are different. The inventor measured the frequency response curves of multiple earphones corresponding to different apertures only when the size of the tuning hole 7 was changed:
  • the curve I is the headphone frequency response curve measured by the conventional in-ear earphone without the tuning hole 7; the curve II is measured by the tuning hole 7 with the aperture of 0.15 mm on the sound guiding tube 4. Headphone frequency response curve.
  • the headphone frequency response corresponds to the curve III, and the loudness of the earphone at the low frequency point of 20Hz is 101.5db, which is further solved by the loudness of the earphone at the same frequency is about 18db lower than the conventional in-ear earphone.
  • In-ear headphones are prone to problems of bass mixing, chaos or boring.
  • the headphone frequency response corresponds to the curve IV, and the loudness of the earphone is 89db at the low frequency point of 20Hz, which is further solved by the loudness of the earphone at the same frequency is about 30db lower than the conventional in-ear earphone.
  • In-ear headphones are prone to problems of bass mixing, chaos or boring.
  • the headphone frequency response corresponds to the curve V, and it can be seen that the loudness of the earphone is lower than 80 db at the low frequency point of 20 Hz, and the loudness of the earphone in the low frequency band is low at this time.
  • the corresponding earphone frequency response curve is as shown by the curve a in FIG.
  • the total air permeability of the tuning paper attached to the tuning hole 7 is 900L/m2.s, and the corresponding earphone frequency response curve is as shown by the curve c.
  • the total air permeability of the tuning paper attached to the tuning hole 7 is 70L/m2.s, and the corresponding earphone frequency response curve is as shown by the curve d in Fig. 6, at which time the air permeability of the tuning hole 750 is already very small, the earphone The sound characteristics are similar to traditional headphones.
  • the present invention is not limited to the above embodiments, and the technical solutions of the above various embodiments of the present invention can be cross-combined with each other to form a new technical solution, and the technical solutions formed by the equivalent replacement are all required by the present invention.
  • the technical solutions formed by the equivalent replacement are all required by the present invention.

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

Abstract

本实用新型涉及一种可调音入耳式耳机，包括壳体和安装在所述壳体内的扬声器单元，所述壳体是由相互拼接的前壳和后壳构成，所述前壳的前端开口并在所述开口的周向处向前延伸形成有连接管，还包括嵌连在所述连接管中的导音管，所述导音管可相对所述连接管转动，所述连接管的侧壁上开设有泄气孔，所述导音管的侧壁上开设有可与所述泄气孔相对的调音孔。本实用新型中的可调音入耳式耳机，在导音管上开一个或多个调音孔，导音管可旋转地安装在前壳上，通过旋转导音管使调音孔与前壳上的泄气孔相对达到泄气调音的作用，也可以在调音孔上贴上不同阻尼材料改变其泄气量的大小，对应耳机前壳体上泄气孔，从而改变听感效果。

Description

一种可调音入耳式耳机
技术领域
本实用新型涉及一种耳机，具体涉及一种入耳式耳机。
背景技术
随着经济发展和人们生活水平的日益提高，人们经常会随身携带各式各样的电子设备以满足影音娱乐方面的需求，如手机、平板电脑或MP3播放器等。当这些电子设备的使用者处于地铁或公交车等喧闹环境时则经常会通过在设备上插接耳机以继续聆听，使用耳机的好处还在于可以不影响到其他人。在耳机家族众多类型的耳机中，入耳式耳机因其出色的携带性、高素质的声音表现及优秀的隔音效果，深受人们的喜爱。目前耳机的结构形式基本上可分为全封闭式结构、半封闭式结构和敞开式结构，各种结构形式主要是为了适应不同的听音环境的需要而设计的，耳机腔体上设有固定通量的泄气孔。由于每个人对于音乐的喜好往往不同，而现有耳机使用的技术中，其结构相对固定。音质效果的调整是由播放设备的调整控制来实现的，耳机本身无法对音质效果进行调整，使用者不能够根据听音环境和音乐类型特点及自己的听音习惯对同一副耳机进行调节达到最佳聆听效果，从而需要使用者选用多对耳机来满足不同听音状况的需求。
实用新型内容
本实用新型要解决的技术问题是：提出一种可方便调节音效的耳机，以满足使用者在一副耳机上实现不同听音效果的需求。
本实用新型为解决上述技术问题提出的技术方案是：一种可调音入耳式耳机，包括壳体和安装在所述壳体内的扬声器单元，所述壳体是由相互拼接的前壳和后壳构成，所述前壳的前端开口并在所述开口的周向处向前延伸形成有连接管，还包括嵌连在所述连接管中的导音管，所述导音管可相对所述连接管转动，所述连接管的侧壁上开设有泄气孔，所述导音管的侧壁上开设有可与所述泄气孔相对的调音孔。
进一步的，所述调音孔为多个，所述多个调音孔在所述导音管的周向上间隔分布，所述多个调音孔之间的直径不同。
进一步的，所述调音孔的形状为是方形、圆形或异形。
进一步的，所述调音孔表面贴覆有透气阻尼材料。
进一步的，所述调音孔的直径为0.15mm-0.8mm。
进一步的，所述调音孔的孔径为0.8mm，所述阻尼材料总的透气量为70L/ m².s-2500L/ m².s。
进一步的，所述阻尼材料为调音纸。
本实用新型的有益效果是：
本实用新型中的可调音入耳式耳机，在导音管上开一个或多个调音孔，导音管可旋转地安装在前壳上，通过旋转导音管使调音孔与前壳上的泄气孔相对达到泄气调音的作用，也可以在调音孔上贴上不同阻尼材料改变其泄气量的大小，对应耳机前壳体上泄气孔，从而改变听感效果。同时，耳道及耳机腔体里的气体从调音孔分流一部分出去，保护了膜片使其不会因气压过大而导致变形，从而保障了高保真声音效果的重现。
附图说明
下面结合附图对本实用新型中的可调音入耳式耳机作进一步说明。
图1是本实用新型中可调音入耳式耳机的结构示意图；
图2是图1中可调音入耳式耳机的结构剖示图；
图3是前壳的结构示意图；
图4是导音管的结构示意图；
图5是调音孔采用不同孔径时的频响曲线变化示意图；
图6是在调音孔上贴覆不同透气量调音纸或网布时的频响曲线变化示意图。
具体实施方式
根据图1、图2、图3和图4所示，本实用新型中的可调音入耳式包括耳机壳体和安装在壳体中的扬声器99，耳机壳体是由后壳1和前壳2配对拼接组装而成。
其中，壳体为中空结构，在后壳1和前壳2的结合处沿前壳2的内壁周向设有环形的扬声器固定圈。扬声器99的边缘连接在扬声器固定圈上，扬声器99以振膜向前的形式安装在耳机壳体内。
前壳2正对扬声器99处凹陷形成有音腔，前壳2的前端开口并在开口的周向处向前延伸形成有连接管3，连接管3与音腔相通。
还包括嵌连在连接管3中的导音管4，导音管4可在连接管3中自由转动，导音管4前端表面制有用于连接耳机胶套5的环向槽，导音管4的后端连通到音腔。
连接管3的侧壁上开设有泄气孔6，在本实施例中，泄气孔6的直径为0.5mm。在导音管4的侧壁上开设有可与泄气孔6相对的调音孔7，通过转动导音管4可调节调音孔7相对泄气孔6的位置。在本实施例中，调音孔7的形状为圆形，当然也可以为方形等任意形状。
经过试验得知，当调音孔7的直径不同时，对耳机低频段的调节效果也会不同。因此基于上述原因，发明人还对调音孔7的孔径大小做了不同尝试和进行多次试验，可以作为优选的是：导音管4上的调音孔7为多个，多个调音孔7在导音管4的周向上间隔分布，多个调音孔7之间的直径不同。发明人在仅改变调音孔7大小的情况下分别测得对应不同孔径的多支耳机频响曲线：
如图5所示，曲线I是由传统的没有开设调音孔7入耳式耳机测得的耳机频响曲线；曲线II是导音管4上开设有孔径为0.15mm调音孔7测得的耳机频响曲线。
当调音孔7的直径为0.3mm时，耳机频响对应曲线III，在20Hz低频点处耳机的响度为101.5db，较传统的入耳式耳机在同样频率处的响度约低18db，进一步地解决了入耳式耳机容易产生低音混、乱或闷的问题。
当调音孔7的直径为0.5mm时，耳机频响对应曲线IV，在20Hz低频点处耳机的响度为89db，较传统的入耳式耳机在同样频率处的响度约低30db，也进一步地解决了入耳式耳机容易产生低音混、乱或闷的问题。
当调音孔7的直径为0.8mm时，耳机频响对应曲线V，可以看到在20Hz低频点处耳机的响度低于80db，此时耳机在低频段的响度较低。虽然完全没有低音混、乱或闷的问题，但是在聆听时，主观听感中关于“三频均衡”的指标已逼近大众可接受的最低点。
为增加调音手段和改善调音效果，可以作为优选的是：在调音孔7表面贴覆有透气阻尼材料。
如图6所示，在0.8mm孔径的调音孔7上贴覆不同透气量的调音纸或者网布时会有不同的耳机频响曲线：
在调音孔7上不贴覆有调音纸时，对应的耳机频响曲线如图6中曲线a所示。
贴覆在调音孔7上调音纸总的透气量为2500L/m².s时 ，对应的耳机频响曲线如曲线b所示。
贴覆在调音孔7上调音纸总的透气量为900L/m².s ，对应的耳机频响曲线如曲线c所示。
贴覆在调音孔7上调音纸总的透气量为70L/m².s，对应的耳机频响曲线如图6中曲线d所示，此时调音孔750的透气量已经极小，耳机在声音特点上与传统耳机很像似。
本实用新型的不局限于上述实施例，本实用新型的上述各个实施例的技术方案彼此可以交叉组合形成新的技术方案，另外凡采用等同替换形成的技术方案，均落在本实用新型要求的保护范围内。

Claims (9)

1、一种可调音入耳式耳机，包括壳体和安装在所述壳体内的扬声器单元，其特征在于：所述壳体是由相互拼接的前壳和后壳构成，所述前壳的前端开口并在所述开口的周向处向前延伸形成有连接管，还包括嵌连在所述连接管中的导音管，所述导音管可相对所述连接管转动，所述连接管的侧壁上开设有泄气孔，所述导音管的侧壁上开设有可与所述泄气孔相对的调音孔。
根据权利要求1所述可调音入耳式耳机，其特征在于：所述调音孔为多个，所述多个调音孔在所述导音管的周向上间隔分布，所述多个调音孔之间的直径不同。
根据权利要求1所述可调音入耳式耳机，其特征在于：所述调音孔的形状为是方形或圆形。
根据权利要求1所述可调音入耳式耳机，其特征在于：所述调音孔的形状为异形。
根据权利要求1或2所述可调音入耳式耳机，其特征在于：所述调音孔表面贴覆有透气阻尼材料。
根据权利要求2所述可调音入耳式耳机，其特征在于：所述调音孔的直径为0.15mm-0.8mm。
根据权利要求3所述可调音入耳式耳机，其特征在于：所述调音孔的直径为0.15mm-0.8mm。
根据权利要求3所述可调音入耳式耳机，其特征在于：所述调音孔的孔径为0.8mm，所述阻尼材料总的透气量为70L/ m².s-2500L/ m².s。
根据权利要求3所述可调音入耳式耳机，其特征在于：所述阻尼材料为调音纸。
PCT/CN2015/095726 2015-11-27 2015-11-27 一种可调音入耳式耳机 WO2017088160A1 (zh)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN112995823A (zh) * 2019-12-02 2021-06-18 东莞市酷卡卡电子商务有限公司 调音耳机
WO2022116765A1 (zh) * 2020-12-01 2022-06-09 华为技术有限公司 一种耳机及移动终端
WO2023051081A1 (zh) * 2021-09-29 2023-04-06 华为技术有限公司 一种耳机前壳及蓝牙耳机

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