CN1191621A - 带有指数轮廓的木制圆锥形扩散器的喇叭形声换能器 - Google Patents

带有指数轮廓的木制圆锥形扩散器的喇叭形声换能器 Download PDF

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Publication number
CN1191621A
CN1191621A CN96195785A CN96195785A CN1191621A CN 1191621 A CN1191621 A CN 1191621A CN 96195785 A CN96195785 A CN 96195785A CN 96195785 A CN96195785 A CN 96195785A CN 1191621 A CN1191621 A CN 1191621A
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transducer
wood
diffuser
acoustic horn
type diffuser
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CN1145924C (zh
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格鲁斯皮·津加利
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津加利S.N.C.
Zingali SNC
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Zingali SNC
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Catching Or Destruction (AREA)
  • Stringed Musical Instruments (AREA)
  • Steroid Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

描述了一种具有圆锥型扩散器的喇叭形声换能器,其主要的技术特征是扩散器具有指数型轮廓;还有一个特征归于用木头实现喇叭的事实。

Description

带有指数轮廓的木制圆锥形 扩散器的喇叭形声换能器
技术领域
本发明涉及喇叭形声换能器。
背景技术
众所周知，在用于高保真和专业用途的绝大部分声再现系统中，便于以使用不同类型的声学换能器的各种方法(应用最适合的方法)来划分20Hz至20000Hz之间所包含的音频范围，从而以可能的最准确的方法来再现该频率范围；例如，“低音”扬声器用于较低的频率，“中音”扬声器用于中频而“高音”扬声器用于高频。
与球顶(dome)型换能器相比，传统的喇叭形换能器虽然可提供以较快的通过空气速度发射声音的基本特征，但此声音具有点状镜像(image)并通常具有鼻音音色，所以使整个系统听上去并不十分令人满意；相反，球顶形换能器具有良好的声音发射，但该声音具有“低效”的较低的宏亮音震撼力，于是颇为接近乐器的宏亮度和音色的动态特征。
发明内容
本发明的目的在于指出如何能够实现表现为对公知装置表现出的改进的一种喇叭形声换能器。
为了达到这个目的，本发明具有依据权利要求1及后续权利要求所述的一种声换能器作为其主题。
附图概述
从以下所提供的描述和附图(纯粹作为解释性而非限制性的例子)，将使依据本发明的声换能器的其它特征和优点变得清晰起来，其中：
图1以三维图表示依据本发明的扩散器(diffuser)(喇叭)；
图2表示整个换能器的剖面图，由标号1表示木制喇叭，由标号2表示“驱动器”；
图3表示从上方看到的换能器的平面图。
在详细的分析和研究后，为了实现两路宏亮声音再现系统，本申请人已完成了一种仅再现中高频的新型换能器系统，该换能器系统给声再现系统提供了明显减少“中音”扬声器与“高音”扬声器(众所周知，它们在再现系统中再现中高频部分)之间的交叉失真的基本特征。
此外，只用一个只再现中高频的换能器来替代两个普通的换能器。
针对上述换能器的缺点，本申请人完成了一种具有木制喇叭的新型换能器，它具有以下的特征：
a)用于扩散器或喇叭的结构材料是无木节的木头，因为只有这种材料才能给换能器提供最准确的音色(没有人看到过用塑料或金属材料制作的小提琴)；
b)具有360°指数型圆锥形轮廓木制扩散器1(特别注意图2中所描绘的指数型曲线)给扬声器提供了以均匀和恒定的方式辐射声音的特征；
c)由于扩散器的结构轮廓和所使用的材料，可消除从1000Hz到2000Hz的频率范围内的典型谐振，该谐振给传统的喇叭系统提供了典型的鼻音和点状镜像。
作为对来自现场麦克风录音的各种音乐和声音进行详尽实际测试的结果，依据本发明的换能器的结构特性(以无木节的木头实现的具有360°指数型圆锥形轮廓的扩散器)都给换能器提供具有非常高音质和非常接近于现场所听到的由乐器提供的动态特征的再现。
从单个木块开始，在车床上对其进行适当的加工，直到其轮廓成为图2所示的形状，这样来形成木制喇叭。
很清楚，在任何情况下，技术人员可对描述成一个例子的喇叭形声换能器进行各种变化，而不背离本发明所固有的新型性原理。提及不用木头而用塑料或把诸通过把诸如铝或其它材料熔入钢铁材料来实现扩散器的可能性，其加工技术不同于先前所示的技术。
很清楚，可对本发明的主题换能器进行各种变化，而不背离创新观点中所固有的新型性原理，此外，在实际实现本发明中，所示细节的某些材料和形式可以是不同的，可用在技术上的等价物来替换它们。

Claims (5)

1.一种具有圆锥形扩散器的喇叭形声换能器，其特征在于所述换能器(1)具有指数型轮廓。
2.如权利要求1所述的换能器，其特征在于用木头为材料来实现所述扩散器。
3.如权利要求1所述的换能器，其特征在于定出的再现范围是中频范围和高频范围。
4.如以上权利要求中任一项所述的换能器，其特征在于还包括位于扩散器后的“驱动器”(图2)。
5.如以上权利要求中任一项所述的换能器，其特征在于扩散器的轮廓曲线相应于图2所示的形状。
CNB961957859A 1995-05-30 1996-05-29 带有指数轮廓的木制圆锥形扩散器的喇叭形声换能器 Expired - Fee Related CN1145924C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95TO000446A IT1279576B1 (it) 1995-05-30 1995-05-30 Trasduttore acustico a tromba con diffusore di tipo conico a profilo esponenziale in legno.
ITTO95A000446 1995-05-30

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CN1191621A true CN1191621A (zh) 1998-08-26
CN1145924C CN1145924C (zh) 2004-04-14

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US (1) US6079514A (zh)
EP (1) EP0829078B1 (zh)
JP (1) JPH11505994A (zh)
KR (1) KR19990022006A (zh)
CN (1) CN1145924C (zh)
AT (1) ATE216117T1 (zh)
AU (1) AU706289B2 (zh)
CA (1) CA2222578A1 (zh)
DE (1) DE69620601T2 (zh)
DK (1) DK0829078T3 (zh)
ES (1) ES2175094T3 (zh)
IT (1) IT1279576B1 (zh)
MX (1) MX9709236A (zh)
NO (1) NO975505L (zh)
PL (1) PL187584B1 (zh)
PT (1) PT829078E (zh)
WO (1) WO1996038834A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108701450A (zh) * 2016-04-25 2018-10-23 Gwf测量系统有限公司 紧凑的广角声换能器

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GB2455563B (en) * 2007-12-14 2012-03-21 Tannoy Ltd Acoustical horn
US20140234790A1 (en) * 2013-02-21 2014-08-21 Patrice Emma Morris Birthday candle blow horn apparatus and method thereof
USD818992S1 (en) * 2015-03-31 2018-05-29 B & W Group Ltd Loudspeaker
GB2538809B (en) 2015-05-29 2021-08-25 B & W Group Ltd Loudspeaker diaphragm
US10547949B2 (en) 2015-05-29 2020-01-28 EVA Automation, Inc. Loudspeaker diaphragm
USD831618S1 (en) * 2016-03-01 2018-10-23 Bentley Motors Ltd. Automobile speaker
USD856977S1 (en) * 2017-02-01 2019-08-20 SpaceControl GmbH & Co. KG Speaker cover
USD832239S1 (en) * 2017-02-17 2018-10-30 Bose Corporation Speaker
US10516927B2 (en) * 2018-04-17 2019-12-24 Wave Sciences, LLC Acoustic parabolic mirror ring apparatus

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US2873812A (en) * 1957-09-05 1959-02-17 Electro Voice High frequency loudspeaker structure
US4031337A (en) * 1974-12-16 1977-06-21 Matsushita Electric Industrial Co., Ltd. Loudspeaker
US4206831A (en) * 1976-03-29 1980-06-10 Robert B. Welch Loudspeaker coupler
US4171734A (en) * 1977-11-10 1979-10-23 Beta Sound, Incorporated Exponential horn speaker
US4176731A (en) * 1977-11-21 1979-12-04 Altec Corporation Two-section exponential acoustical horn
US4496021A (en) * 1983-02-18 1985-01-29 Emmanuel Berlant 360 Degree radial reflex orthospectral horn for high-frequency loudspeakers
US4673057A (en) * 1984-11-13 1987-06-16 Glassco John M Geometrical transducer arrangements
US5889876A (en) * 1997-05-01 1999-03-30 Billings; Bart P. Hemispherical speaker system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108701450A (zh) * 2016-04-25 2018-10-23 Gwf测量系统有限公司 紧凑的广角声换能器
CN108701450B (zh) * 2016-04-25 2023-12-01 Gwf测量系统有限公司 紧凑的广角声换能器

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Publication number Publication date
PT829078E (pt) 2002-09-30
CA2222578A1 (en) 1996-12-05
PL187584B1 (pl) 2004-08-31
JPH11505994A (ja) 1999-05-25
ITTO950446A0 (it) 1995-05-30
IT1279576B1 (it) 1997-12-16
AU706289B2 (en) 1999-06-10
PL323557A1 (en) 1998-04-14
ATE216117T1 (de) 2002-04-15
DK0829078T3 (da) 2002-08-05
US6079514A (en) 2000-06-27
DE69620601T2 (de) 2002-08-08
EP0829078A1 (en) 1998-03-18
ITTO950446A1 (it) 1996-11-30
ES2175094T3 (es) 2002-11-16
DE69620601D1 (de) 2002-05-16
NO975505D0 (no) 1997-11-28
NO975505L (no) 1998-01-28
EP0829078B1 (en) 2002-04-10
AU6002896A (en) 1996-12-18
CN1145924C (zh) 2004-04-14
WO1996038834A1 (en) 1996-12-05
KR19990022006A (ko) 1999-03-25
MX9709236A (es) 1998-10-31

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