DE20309771U1 - Bass reflex tube for loudspeaker box, has circular, oval or polygonal cross-section and straight or trumpet-shaped ends - Google Patents

Bass reflex tube for loudspeaker box, has circular, oval or polygonal cross-section and straight or trumpet-shaped ends

Info

Publication number
DE20309771U1
DE20309771U1 DE20309771U DE20309771U DE20309771U1 DE 20309771 U1 DE20309771 U1 DE 20309771U1 DE 20309771 U DE20309771 U DE 20309771U DE 20309771 U DE20309771 U DE 20309771U DE 20309771 U1 DE20309771 U1 DE 20309771U1
Authority
DE
Germany
Prior art keywords
tube
bass reflex
section
trumpet
oval
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE20309771U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GROSKLAUS PETER
Original Assignee
GROSKLAUS PETER
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GROSKLAUS PETER filed Critical GROSKLAUS PETER
Priority to DE20309771U priority Critical patent/DE20309771U1/en
Publication of DE20309771U1 publication Critical patent/DE20309771U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04R1/20—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
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material 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
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex 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 
    • H04R1/28—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

Abstract

The base reflex tube has a circular, oval or polygonal cross-section and straight (6.1) or trumpet-shaped (6.2) ends for use in a bass reflex-loudspeaker box. The relevant inner tube (6.3) for Helmholtz resonance tuning is perforated partially or on its entire length and periphery by round holes or those of other cross-sections and a second outer tube (6.4) encloses the inner tube with spacing. The hollow space (6.5) between the inner and outer tubes is completely or partly filled with sound-absorbing insulating material, such as needle felt, acoustic foam, glass wool or similar material. The inner tube is entirely or partly produced from sound-absorbing material which is shape-stable e.g. formed needle felt, acoustic foam or similar.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (3)

1. Bassreflexrohr (Fig. 6 u. 7) mit kreisförmigem, ovalen oder vieleckigen Querschnitt und geraden (6.1) oder trompetenartig (6.2) ausgeformten Enden zur Verwendung in Bassreflex-Lautsprecherboxen, dadurch gekennzeichnet, dass: das für die Helmholtz-Resonanz Abstimmung relevante innere Rohr (6.3) teilweise oder auf seiner gesamten Länge und Umfang, durch runde Bohrungen oder Ausbrüche anderen Querschnittes perforiert ist und ein zweites äußeres Rohr (6.4) das innere Rohr (6.3) in einigem Abstand umschließt.1. Bass reflex tube ( Fig. 6 and 7) with a circular, oval or polygonal cross-section and straight ( 6.1 ) or trumpet-like ( 6.2 ) shaped ends for use in bass reflex speakers, characterized in that: that relevant for the Helmholtz resonance tuning inner tube ( 6.3 ) partially or over its entire length and circumference, is perforated by round bores or cutouts of different cross-section and a second outer tube ( 6.4 ) encloses the inner tube ( 6.3 ) at a certain distance. 2. Bassreflexrohr nach Anspruch 1, dadurch gekennzeichnet, dass: der zwischen innerem (6.3) und äußerem Rohr (6.4) entstehende Hohlraum (6.5) ganz oder teilweise mit geräusch-absorbierendem Dämm-Material, wie z. B. Nadelfilz, Akustikschaum, Glaswolle oder ähnlichem Material gefüllt ist.2. Bass reflex tube according to claim 1, characterized in that: the cavity ( 6.5 ) arising between the inner ( 6.3 ) and outer tube ( 6.4 ) wholly or partly with noise-absorbing insulating material, such as. B. needle felt, acoustic foam, glass wool or similar material is filled. 3. Bassreflexrohr (Fig. 7) nach Anspruch 1 und 2, dadurch gekennzeichnet, dass: das innere Rohr (6.3) ganz oder teilweise aus einem geräusch- absorbierenden, formstabilem Material (z. B. geformter Nadelfilz, Akustikschaum o. ä.) hergestellt ist.3. bass reflex tube ( Fig. 7) according to claim 1 and 2, characterized in that: the inner tube ( 6.3 ) entirely or partially of a noise-absorbing, dimensionally stable material (z. B. molded needle felt, acoustic foam or the like) is made.
DE20309771U 2003-06-25 2003-06-25 Bass reflex tube for loudspeaker box, has circular, oval or polygonal cross-section and straight or trumpet-shaped ends Expired - Lifetime DE20309771U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20309771U DE20309771U1 (en) 2003-06-25 2003-06-25 Bass reflex tube for loudspeaker box, has circular, oval or polygonal cross-section and straight or trumpet-shaped ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20309771U DE20309771U1 (en) 2003-06-25 2003-06-25 Bass reflex tube for loudspeaker box, has circular, oval or polygonal cross-section and straight or trumpet-shaped ends

Publications (1)

Publication Number Publication Date
DE20309771U1 true DE20309771U1 (en) 2003-09-18

Family

ID=28459199

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20309771U Expired - Lifetime DE20309771U1 (en) 2003-06-25 2003-06-25 Bass reflex tube for loudspeaker box, has circular, oval or polygonal cross-section and straight or trumpet-shaped ends

Country Status (1)

Country Link
DE (1) DE20309771U1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011061284A1 (en) 2009-11-19 2011-05-26 Georg Neumann Gmbh Speaker unit
DE102013223950A1 (en) * 2013-11-22 2015-05-28 Henning Bosselmann Speaker enclosure
WO2017186311A1 (en) * 2016-04-29 2017-11-02 Burmester Audiosysteme Gmbh Bass reflex tube for a loudspeaker
EP3249947A1 (en) * 2016-05-25 2017-11-29 Yamaha Corporation Bass reflex port and acoustic device
CN109314809A (en) * 2016-07-07 2019-02-05 雅马哈株式会社 Bass-reflex port and stereo set
CN111050255A (en) * 2019-12-28 2020-04-21 陕西师范大学 Receiving transducer with adjustable working frequency
US20220210544A1 (en) * 2019-04-23 2022-06-30 Polk Audio, Llc Loudspeaker System, Method and Apparatus For Absorbing Loudspeaker Acoustic Resonances

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009046889A1 (en) 2009-11-19 2011-07-21 K+H Vertriebs- und Entwicklungsgesellschaft mbH, 30900 Loudspeaker unit
WO2011061284A1 (en) 2009-11-19 2011-05-26 Georg Neumann Gmbh Speaker unit
DE102013223950B4 (en) * 2013-11-22 2018-11-15 Henning Bosselmann Speaker enclosure
DE102013223950A1 (en) * 2013-11-22 2015-05-28 Henning Bosselmann Speaker enclosure
US10681456B2 (en) 2016-04-29 2020-06-09 Burmester Audiosysteme Gmbh Bass reflex tube for a loudspeaker
RU2719636C1 (en) * 2016-04-29 2020-04-21 Бурместер Аудиосистем ГмбХ Blow-out pipe for loudspeaker
CN109196880B (en) * 2016-04-29 2021-09-10 柏林之声音频系统有限公司 Bass reflex tube for loudspeaker
KR20180130577A (en) * 2016-04-29 2018-12-07 부르메스터 아우디오시스테메 게엠베하 Bass reflex tubes for loudspeakers
CN109196880A (en) * 2016-04-29 2019-01-11 柏林之声音频系统有限公司 Bass reflex pipe for loudspeaker
KR102159731B1 (en) * 2016-04-29 2020-09-24 부르메스터 아우디오시스테메 게엠베하 Bass reflex tube for loudspeaker
US20190149909A1 (en) * 2016-04-29 2019-05-16 Burmester Audiosysteme Gmbh Bass reflex tube for a loudspeaker
WO2017186311A1 (en) * 2016-04-29 2017-11-02 Burmester Audiosysteme Gmbh Bass reflex tube for a loudspeaker
CN107438212B (en) * 2016-05-25 2019-12-27 雅马哈株式会社 Bass reflex port and acoustic apparatus
CN107438212A (en) * 2016-05-25 2017-12-05 雅马哈株式会社 Bass reflex mouth and PA-system
EP3249947A1 (en) * 2016-05-25 2017-11-29 Yamaha Corporation Bass reflex port and acoustic device
EP3484170A4 (en) * 2016-07-07 2020-03-04 Yamaha Corporation Bass reflex port and acoustic device
CN109314809A (en) * 2016-07-07 2019-02-05 雅马哈株式会社 Bass-reflex port and stereo set
US11240592B2 (en) 2016-07-07 2022-02-01 Yamaha Corporation Bass reflex port and acoustic device
US20220210544A1 (en) * 2019-04-23 2022-06-30 Polk Audio, Llc Loudspeaker System, Method and Apparatus For Absorbing Loudspeaker Acoustic Resonances
CN111050255A (en) * 2019-12-28 2020-04-21 陕西师范大学 Receiving transducer with adjustable working frequency

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20031023

R156 Lapse of ip right after 3 years

Effective date: 20070103