CN1117339A - 扬声器系统 - Google Patents

扬声器系统 Download PDF

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Publication number
CN1117339A
CN1117339A CN94191067A CN94191067A CN1117339A CN 1117339 A CN1117339 A CN 1117339A CN 94191067 A CN94191067 A CN 94191067A CN 94191067 A CN94191067 A CN 94191067A CN 1117339 A CN1117339 A CN 1117339A
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sound
audio amplifier
volume
enclosure
sound panel
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CN94191067A
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CN1046837C (zh
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D·J·菲尔德
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Technicolor USA Inc
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Thomson Consumer Electronics Inc
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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
    • H04R5/00—Stereophonic arrangements
    • 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
    • H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type 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 
    • H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  using transducers reproducing the same frequency band

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

本发明涉及一种多扬声器系统，其中内隔音板(30)延伸在整个容积而将内容积(24)分成两不等部分。隔音板有一折叠部分(34，36)，它不平行于箱壁。扬声器安装在第一容积(26，28)的折叠部分。扬声器辐射声音到第二容积(28)。两容积之一以带通结构出口到箱外。隔音板的折叠部分提供不平行部分从而减少了由容箱发出的声音中的不希望的峰和声音抵消。此外，通过隔音板沿其宽度与底面顶面的固定，增强音箱的刚性。

Description

扬声器系统
本发明涉及一种音响系统，更具体地说，涉及一种用于电视接收机的音响系统。
在扬声器系统中，特别在用来播放低音的扬声器系统，其中的一个至为重要的问题是箱体结构会响应于各种频率的信号而产生不需要的共振与振动的问题。对于在箱壁的棱缘之间无中间支撑的大箱壁音箱来说，此问题就更为严重。为防止此类振动，就要求箱部件足够坚固和/或重实以阻止振动或使箱体结构的自然共振频率低于信号频率。如果无须采用较坚固或重实的部件而又能减少振动，则便可降低部件和运输成本。
通常要求把音箱的平行面减到最少，这是因为平行面可在箱内建立共振/反共振频率(声驻波)和在理想的平坦的频率响应中造成不应有的峰和/或抵消。此外，这种共振频率建立如上所述的振动模式，而这会引起诸如蜂鸣这类异常的声音。
最近，已推出称之为低频带通箱体设计的音乐系统。这些箱体从声学上滤除许多由低音扬声器产生的高声平的失真的谐波分量。这种结构设计中有一个子室，子室有一个开口管耦合到音箱外。在Veranth的5,033,577，Bose的4,544,631及Schreiber等等的5,092,424美国专利描述了这种结构。
简言之，本发明涉及一种多扬声器的扬声器系统，其中一个内隔音板伸延在内部空间(容积)的整个长度上，将内部容积分隔成两不等部分。隔音板有一个折叠部分，它不平行于音箱壁。扬声器装在第一容积的折叠部分上。扬声器把声音辐射到第二空间。第一和第二容积之一从带通构型出口到箱外。于是，隔音板的非平行部分减少了不希望的由箱壁引起的音峰和或音的相消。此外，该隔音板沿其宽度与箱的顶壁和低壁相固定，从而给箱体提供了附加的刚度。
图1是根据本发明构思的扬声器系统的被暴露的立体示意图。
图2是大致沿图1的2-2方向的剖面图。
图3示出了本发明的扬声器系统安装到电视接收机上的情形。
现参阅上述各图。图中音箱以数字10表示，它包括前后壁12，14，侧壁16，18，及顶底壁20，22，这些壁板围定一个容积24。隔音板30将容积分成一个第一容积26和第二容积28。隔音板30沿其纵向端刚性地与侧板16，18相固定，并当音箱10整个装配好后，隔音板的厚度部分插入到顶和底的背脊32的槽内。顶22则用螺丝连接柱24被固定到底20。
隔音板30形成有一个折叠部分34，36，此折叠部分部分互相成非180度的角度。背脊32提供了沿隔音板30纵向长度的紧配合，这样，隔音板30给部件20，22提供了附加刚度。一对扬声器38，40装在容积内的对应的折叠部分34，36，扬声器的声音辐射到容积中和安装在前壁12上的纸盆中，在示例实施例中，扬声器38，40有一个约40赫兹的大气共振，及一个在该实例中，约80赫兹的箱宝负荷共振。在本实施例中，在容积28内由扬声器38，40所产生的声音由一对释放孔42被耦合到音箱外部。容积24，26的相对尺寸，释音孔42的位置和大小给所生成的声音提供了一个低频带通滤波器。音箱10设计得将其安装在电视接收46的壳体44的顶部，电视机有一显示器(未示出)和面向上的释音孔42。
扬声器38，40由来自不同声道的信号通过导线48驱动。此外，因为用于不同声道的两个扬声器共享同一未分开的容积26，所以由释音孔42发出的各声道的低音同时到达听者，而不会出现在多扬声器系统中常有的两个道声音的相消或干涉。
隔音板30除了给音箱10增加了刚度以外，还起到了因其折叠部分34，36而提供了一个音学结构，即提供与音箱侧壁不平行的结构。用这种方法，使容积26和28的不希望的峰和/或抵消减小。由这种内部结构提供的非平行性使得可以外壳保持矩形形状，这比起三角形或棱形的外形更为美观。

Claims (4)

1.一种扬声器系统，其特征在于：
一个扬声器音箱，音箱有多个外壁(12，14，16，18，20，22)，
一个隔音板(30)，其长度方向的两端与两相对置外壁(16，18)相固定，隔音板把音箱分为第一和第二容积(26，28)，音箱在第一和第二容积(26，28)中的一个容积与音箱外部之间至少有一个释音孔，
一对安装在第一容积(26，28)内的隔音板上的扬声器(38，40)，通过至少一个释音孔(42)将声音送向音箱外，
一个隔音板(34)，它有一个互相以非180度的角度互相折叠的第一和第二部分(34，36)，每对扬声器(38，40)安装在对应的第一和第二部分。
2.如权利要求1所述的系统，其中的隔音板(30)还沿其厚度固定在一第二对完全相对的外壁(20，22)之间，用以给音箱提供附加的强和刚度。
3.如权利要求1所述的系统，其中所述的系统是与电视机做成一体的，电视机包括一个显示部分，且该系统给所显示的图象提供声响节目资料。
4.如权利要求1所述的系统，包括用于以不同信号驱动各所述扬声器(38，40)的装置。
CN94191067A 1993-02-05 1994-01-27 扬声器设备 Expired - Fee Related CN1046837C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/014,182 US5278361A (en) 1993-02-05 1993-02-05 Loudspeaker system
US08/014,182 1993-02-05

Publications (2)

Publication Number Publication Date
CN1117339A true CN1117339A (zh) 1996-02-21
CN1046837C CN1046837C (zh) 1999-11-24

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CN94191067A Expired - Fee Related CN1046837C (zh) 1993-02-05 1994-01-27 扬声器设备

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US (1) US5278361A (zh)
EP (1) EP0682853B1 (zh)
JP (1) JP3611854B2 (zh)
KR (1) KR100292927B1 (zh)
CN (1) CN1046837C (zh)
CA (1) CA2154340C (zh)
DE (1) DE69427637T2 (zh)
MX (1) MX9400920A (zh)
MY (1) MY110399A (zh)
SG (1) SG54147A1 (zh)
WO (1) WO1994018814A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102870437A (zh) * 2010-05-03 2013-01-09 安赫尔·胡利奥·莫尔顿·塞斯特罗斯 扬声器的隔音罩
CN101635870B (zh) * 2008-07-23 2013-03-27 华硕电脑股份有限公司 可携式电子装置的扬声器模块

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WO1996004764A1 (en) * 1994-08-02 1996-02-15 Philips Electronics N.V. Apparatus including a loudspeaker unit, loudspeaker unit, and housing for a loudspeaker unit
US5874695A (en) * 1997-05-14 1999-02-23 Tracy; Dennis A. Speaker assembly
US5898138A (en) * 1997-07-22 1999-04-27 Delgado, Jr.; Roy Loudspeaker having horn loaded driver and vent
US5975236A (en) * 1998-01-08 1999-11-02 Yamamoto; Shuji Speaker assembly
US6415036B1 (en) 2000-08-24 2002-07-02 Thomson Licensing, S.A. Apparatus for reducing vibrations generated by a loudspeaker in a television cabinet
US7093688B2 (en) * 2001-09-05 2006-08-22 Samsung Electronics Co., Ltd. Structure for preventing the generation of standing waves and a method for implementing the same
US7272236B2 (en) * 2003-01-06 2007-09-18 Thomson Licensing Speaker assembly for a television cabinet
US20070158134A1 (en) * 2006-01-11 2007-07-12 Fryette Steven M Speaker cabinet acoustics control mechanism
US8276706B2 (en) * 2008-06-27 2012-10-02 Rgb Systems, Inc. Method and apparatus for a loudspeaker assembly
JP5563861B2 (ja) * 2009-09-30 2014-07-30 Ｎｅｃパーソナルコンピュータ株式会社 スタンド及び表示装置
US11470417B1 (en) 2021-07-30 2022-10-11 Klipsch Group, Inc. Horn-loaded loudspeaker

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HU163253B (zh) * 1971-08-16 1973-07-28
DE8304832U1 (de) * 1983-02-22 1983-06-09 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Fernsehgeraet mit internem tieftonlautsprecher
DE3520970A1 (de) * 1984-10-10 1986-12-18 Alfred 2800 Bremen Rinkowski Lautsprechergehaeuse mit besonderen akustischen eigenschaften
US4903300A (en) * 1989-01-05 1990-02-20 Polk Investment Corporation Compact and efficient sub-woofer system and method for installation in structural partitions
US5005201A (en) * 1989-02-14 1991-04-02 Rca Licensing Corporation Apparatus and method thereof for improvement of stereophonic sound
JP2783839B2 (ja) * 1989-03-29 1998-08-06 三洋電機株式会社 スピーカ装置
US5181247A (en) * 1990-07-23 1993-01-19 Bose Corporation Sound image enhancing
US5092424A (en) * 1990-12-03 1992-03-03 Bose Corporation Electroacoustical transducing with at least three cascaded subchambers
US5147986A (en) * 1990-12-03 1992-09-15 Tandy Corporation Subwoofer speaker system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101635870B (zh) * 2008-07-23 2013-03-27 华硕电脑股份有限公司 可携式电子装置的扬声器模块
CN102870437A (zh) * 2010-05-03 2013-01-09 安赫尔·胡利奥·莫尔顿·塞斯特罗斯 扬声器的隔音罩
CN102870437B (zh) * 2010-05-03 2015-09-16 安赫尔·胡利奥·莫尔顿·塞斯特罗斯 扬声器的隔音罩

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KR100292927B1 (ko) 2001-06-15
JPH08506706A (ja) 1996-07-16
CA2154340C (en) 1999-04-06
MY110399A (en) 1998-04-30
DE69427637T2 (de) 2001-10-18
EP0682853A1 (en) 1995-11-22
EP0682853A4 (en) 1996-01-10
EP0682853B1 (en) 2001-07-04
WO1994018814A1 (en) 1994-08-18
SG54147A1 (en) 1998-11-16
KR960700618A (ko) 1996-01-20
US5278361A (en) 1994-01-11
MX9400920A (es) 1994-08-31
DE69427637D1 (de) 2001-08-09
JP3611854B2 (ja) 2005-01-19
CA2154340A1 (en) 1994-08-18
CN1046837C (zh) 1999-11-24

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