CN107948803A - 一种带导声管的耳套 - Google Patents

一种带导声管的耳套 Download PDF

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Publication number
CN107948803A
CN107948803A CN201711441806.4A CN201711441806A CN107948803A CN 107948803 A CN107948803 A CN 107948803A CN 201711441806 A CN201711441806 A CN 201711441806A CN 107948803 A CN107948803 A CN 107948803A
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Prior art keywords
phonocatheter
ear muff
ear
resonator
operatic tunes
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CN201711441806.4A
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黄孟
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Sound Source Technology (shenzhen) Co Ltd
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Sound Source Technology (shenzhen) Co Ltd
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Priority to CN201711441806.4A priority Critical patent/CN107948803A/zh
Priority to US15/919,236 priority patent/US10321220B1/en
Publication of CN107948803A publication Critical patent/CN107948803A/zh
Pending legal-status Critical Current

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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
    • H04R1/1058—Manufacture or assembly
    • H04R1/1075—Mountings of transducers in earphones or headphones
    • 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
    • H04R1/1058—Manufacture or assembly
    • 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
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means 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
    • 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2846—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/105—Manufacture of mono- or stereophonic headphone components
    • 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
    • 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
    • H04R2460/15—Determination of the acoustic seal of ear moulds or ear tips of hearing devices

Abstract

本发明公开了一种带导声管的耳套，包括耳套本体，所述耳套本体设置有喇叭前声腔，所述喇叭前声腔内设置有导声管，所述导声管一端设在喇叭前声腔内，另一端连接一个谐振腔，所述谐振腔容积大于所述导声管的容积，所述谐振腔与外界大气相通，可以增加喇叭振动系统的线性幅度，提高系统功率，可以改善前声腔的耳压平衡，改善喇叭膜片的非线性失真；可以改善耳机的低频响应效果，改进音质；可以改善主动降噪耳机的啸叫。

Description

一种带导声管的耳套
技术领域
本发明涉及一种耳套，尤其涉及一种带导声管的耳套。
背景技术
头戴耳机一般有环耳式(Circumaural)及压耳式(Supra-aural)两种，环耳式是指耳套环形包住耳朵，压耳式是指耳套贴压在耳朵上。无论环耳式耳机还是压耳式耳机的前声腔设计，都需要考虑耳套与耳朵佩戴上的声泄漏问题。如果是密封设计，由于耳套跟耳朵周围的皮肤是紧密耦合，前声腔的声阻尼过大而制约喇叭膜片的线性震动，造成声学失真过大从而影响声音品质。但如果耳套是泄漏式设计，过大的声泄漏会导致耳机的低频效果差，也会影响声音品质。
发明内容
为解决上述问题，本发明提供一种带导声管的耳套，可以改善前声腔的耳压平衡，改善喇叭膜片的非线性失真；可以改善耳机的低频响应效果，改进音质；可以改善主动降噪耳机的啸叫。
为实现上述目的，本发明采用以下技术手段：
本发明提供一种带导声管的耳套，包括耳套本体，所述耳套本体设置有喇叭前声腔，所述喇叭前声腔内设置有导声管，所述导声管一端设在喇叭前声腔内，另一端连接一个谐振腔，所述谐振腔容积大于所述导声管的容积，所述谐振腔与外界大气相通。
进一步的，所述耳套本体可以与耳机主体分离，所述导声管镶嵌在耳套本体内部，所述导声管与耳机主体不相连。
进一步的，所述导声管内孔直径为0.8mm-3.0mm，长度为3mm-30mm。
进一步的，所述导声管通过打胶方式与耳套本体密封。
进一步的，所述耳套本体上的塑胶件设有与所述导声管相对接的模具孔，所述模具孔连接有谐振腔，所述谐振腔与外界连通。
进一步的，所述导声管为金属材质。
本发明的有益效果：
本发明结构简单，使用方便，可以改善前声腔的耳压平衡，改善喇叭膜片的非线性失真，可以通过改变声管的长度来改变管内声阻，调节耳机的低频响应，改进音质；可以改善主动降噪耳机环路反馈环境，不容易产生啸叫。
附图说明
图1为本发明的一个实施例的整体结构示意图；
图2为本实新型的一个实施例的耳套和导声管的截面图结构示意图；
图3为低泄漏式头戴耳机、高泄漏式头戴耳机以及加导声管设计耳套耳机的低频特性比较示意图。
具体实施方式
下面结合附图及具体实施例对本发明做进一步说明。
实施例1：如图1-2所示，本实施例提供一种带导声管的耳套，包括耳套本体1，所述耳套本体设置有喇叭前声腔2，所述喇叭前声腔2内设置有导声管3，所述导声管3一端设在喇叭前声腔2内，另一端连接一个谐振腔1-2，所述谐振腔1-2容积远大于所述导声管3的容积，所述谐振腔1-2与外界大气相通，所述耳套本体1可以与耳机主体分离，所述导声管3镶嵌在耳套本体1内部，所述导声管3与耳机主体1 不相连，导声管内孔直径为0.8mm-3.0mm，长度为3mm-30mm，导声管通过打胶方式与耳套本体密封，耳套本体上的塑胶件设有与所述导声管相对接的模具孔1-1，所述模具孔1-1连接有谐振腔1-2，所述谐振腔 1-2与外界连通，导声管为金属材质。
如果前声腔为低泄漏式设计，喇叭膜片震动时受到较大的阻尼作用，若在大功率状态下工作，喇叭膜片容易发生非线性失真。
由于耳套内导声管的存在，使得前声腔与外界大气相通，可以增加喇叭振动系统的线性幅度，提高系统功率。内外气压一致喇叭膜片震动时不宜失真。而且由于内外气压保持一致，不会给耳道内产生过大的耳压，改善了佩戴的舒适性。
低泄漏式头戴耳机佩戴时耳套与耳朵的耦合要良好，减少声泄漏，而耳套加导声管的设计，可以通过改变声管的长度来改变管内声阻，调节耳机的低频响应。如图3所示，V(17)是耳套内加了20mm*1.8mm(长 *内径)的导声管设计，由于管内声阻的存在，仿真频响曲线与低泄漏式耳套V(8)结果差不多，而高泄漏式耳套V(34)频响则下跌。
反馈式主动降噪耳机，因为前声腔设计较为封闭，环路由喇叭到麦克风反馈容易导致耳机啸叫。而在耳套内增加了导声管的设计，正好改善环路反馈环境，不容易产生啸叫。

Claims (6)

1.一种带导声管的耳套，其特征在于，包括耳套本体，所述耳套本体设置有喇叭前声腔，所述喇叭前声腔内设置有导声管，所述导声管一端设在喇叭前声腔内，另一端连接一个谐振腔，所述谐振腔容积大于所述导声管的容积，所述谐振腔与外界大气相通。
2.根据权利要求1所述的一种带导声管的耳套，其特征在于，所述耳套本体可以与耳机主体分离，所述导声管镶嵌在耳套本体内部，所述导声管与耳机主体不相连。
3.根据权利要求1所述的一种带导声管的耳套，其特征在于，所述导声管内孔直径为0.8mm-3.0mm，长度为3mm-30mm。
4.根据权利要求1所述的一种带导声管的耳套，其特征在于，所述导声管通过打胶方式与耳套本体密封。
5.根据权利要求3所述的一种带导声管的耳套，其特征在于，所述耳套本体上的塑胶件设有与所述导声管相对接的模具孔，所述模具孔连接有谐振腔，所述谐振腔与外界连通。
6.根据权利要求1-5任意一项所述的一种带导声管的耳套，其特征在于，所述导声管为金属材质。
CN201711441806.4A 2017-12-27 2017-12-27 一种带导声管的耳套 Pending CN107948803A (zh)

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US15/919,236 US10321220B1 (en) 2017-12-27 2018-03-13 Earcushion with acoustic tube

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CN112584265A (zh) * 2019-09-27 2021-03-30 华为技术有限公司 一种耳机

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CN110191386A (zh) * 2019-05-31 2019-08-30 歌尔科技有限公司 一种外放式耳机
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CN112584265B (zh) * 2019-09-27 2023-03-17 华为技术有限公司 一种耳机

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