DE20314657U1 - Ventilated housing for low-frequency loudspeaker has labyrinth with baffles, with open area being reduced in stages from one hundred percent to twenty-five percent - Google Patents

Ventilated housing for low-frequency loudspeaker has labyrinth with baffles, with open area being reduced in stages from one hundred percent to twenty-five percent

Info

Publication number
DE20314657U1
DE20314657U1 DE20314657U DE20314657U DE20314657U1 DE 20314657 U1 DE20314657 U1 DE 20314657U1 DE 20314657 U DE20314657 U DE 20314657U DE 20314657 U DE20314657 U DE 20314657U DE 20314657 U1 DE20314657 U1 DE 20314657U1
Authority
DE
Germany
Prior art keywords
reflex
housing according
channel
housing
percent
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
DE20314657U
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE20314657U priority Critical patent/DE20314657U1/en
Publication of DE20314657U1 publication Critical patent/DE20314657U1/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
    • H04R1/2838—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
    • H04R1/2849—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers

Landscapes

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

Abstract

The housing may consist of a rectangular box with a low-frequency loudspeaker in one side and a system of baffles defining a sinusoidal channel leading to the outside at one end. Further baffles progressively block the channel from 100% clear (100) to 75% clear (75) to 50% clear (50) to 25% clear (25).

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 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 (6)

1. Als Bassreflex-Box oder Bandpass aufgebautes ventiliertes Gehäuse, insbe­ sondere für Tieftonlautsprecher, mit einer Ventilationsöffnung, an die sich nach innen ein als gestreckter Hohlraum ausgebildeter Reflexkanal an­ schließt, mit dem ein von der Lautsprecher-Rückseite in das Gehäuseinnere abgestrahltes akustisches Signal in veränderter Form nach außen geleitet werden kann, dadurch gekennzeichnet, dass als Reflexkanal ein durch paral­ lel zu einer Außenwand angeordnete, gegenüber dieser Außenwand verkürz­ te Innenwände abgeteilter, im Wesentlichen S-förmiger Kanal von rechtecki­ gem Querschnitt vorgesehen ist.1. Built as a bass reflex box or bandpass ventilated housing, in particular for woofers, with a ventilation opening, which is followed by a reflex channel designed as an elongated cavity, with which an acoustic signal radiated from the rear of the loudspeaker into the interior of the housing connects modified form can be directed to the outside, characterized in that a substantially S-shaped channel of rectangular cross-section is provided as a reflex channel, which is arranged parallel to an outer wall and is shortened with respect to this outer wall. 2. Gehäuse nach Anspruch 1, dadurch gekennzeichnet, dass der Reflexkanal durch entlang seiner Längsachse angeordnete Trennwände in mehrere paral­ lele und bevorzugt unterschiedlich weite Teilkanäle unterteilt ist, deren Venti­ lationsöffnungen von außen einzeln verschlossen werden können.2. Housing according to claim 1, characterized in that the reflex channel by dividing walls arranged along its longitudinal axis into several paral lele and preferably different width sub-channels is divided, the Venti lation openings can be closed individually from the outside. 3. Gehäuse nach Anspruch 2, dadurch gekennzeichnet, dass als Zubehör zum wahlweisen Verschluss der Ventilationsöffnungen ein Satz von Blenden mit unterschiedlichen Fenstern beigegeben ist, die jeweils eine oder mehrere Ventilationsöffnungen offen lassen.3. Housing according to claim 2, characterized in that as an accessory for optional closure of the ventilation openings with a set of panels different windows are added, each one or more Leave ventilation openings open. 4. Abänderung des Gehäuses nach Anspruch 2, dadurch gekennzeichnet, dass anstelle eines unterteilten Reflexkanals mit rechteckigem Querschnitt mehre­ re parallele, rohrförmige Reflexkanäle vorgesehen sind, deren Ventilations­ öffnungen von außen einzeln verschlossen werden können.4. Modification of the housing according to claim 2, characterized in that instead of a divided reflex channel with a rectangular cross-section re parallel, tubular reflex channels are provided, their ventilation openings can be closed individually from the outside. 5. Gehäuse nach Anspruch 4, dadurch gekennzeichnet, dass als Zubehör zum wahlweisen Verschluss der Ventilationsöffnungen ein Satz von auf die Venti­ lationsöffnungen passenden Deckeln beigegeben ist.5. Housing according to claim 4, characterized in that as an accessory for optional closure of the ventilation openings a set of on the venti suitable openings is added. 6. Gehäuse nach Anspruch 2 oder 4, dadurch gekennzeichnet, dass der Reflex­ kanal in drei Teilkanäle unterteilt ist, deren Querschnitte sich wie 1 : 1 : 2 ver­ halten.6. Housing according to claim 2 or 4, characterized in that the reflex channel is divided into three sub-channels, the cross sections of which are ver 1: 1: 2 hold.
DE20314657U 2003-09-23 2003-09-23 Ventilated housing for low-frequency loudspeaker has labyrinth with baffles, with open area being reduced in stages from one hundred percent to twenty-five percent Expired - Lifetime DE20314657U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20314657U DE20314657U1 (en) 2003-09-23 2003-09-23 Ventilated housing for low-frequency loudspeaker has labyrinth with baffles, with open area being reduced in stages from one hundred percent to twenty-five percent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20314657U DE20314657U1 (en) 2003-09-23 2003-09-23 Ventilated housing for low-frequency loudspeaker has labyrinth with baffles, with open area being reduced in stages from one hundred percent to twenty-five percent

Publications (1)

Publication Number Publication Date
DE20314657U1 true DE20314657U1 (en) 2003-11-20

Family

ID=29594915

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20314657U Expired - Lifetime DE20314657U1 (en) 2003-09-23 2003-09-23 Ventilated housing for low-frequency loudspeaker has labyrinth with baffles, with open area being reduced in stages from one hundred percent to twenty-five percent

Country Status (1)

Country Link
DE (1) DE20314657U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005104607A1 (en) * 2004-04-20 2005-11-03 Loewe Opta Gmbh Bass reflex tube for loudspeakers
US20220159370A1 (en) * 2020-11-18 2022-05-19 Shure Acquisition Holdings, Inc. Audio Devices Having Low-Frequency Extension Filter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005104607A1 (en) * 2004-04-20 2005-11-03 Loewe Opta Gmbh Bass reflex tube for loudspeakers
US20220159370A1 (en) * 2020-11-18 2022-05-19 Shure Acquisition Holdings, Inc. Audio Devices Having Low-Frequency Extension Filter
US11818536B2 (en) * 2020-11-18 2023-11-14 Shure Acquisition Holdings, Inc. Audio devices having low-frequency extension filter

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20031224

R150 Term of protection extended to 6 years

Effective date: 20061013

R151 Term of protection extended to 8 years

Effective date: 20091014

R158 Lapse of ip right after 8 years

Effective date: 20120403