EP0954200A2 - Loudspeaker - Google Patents

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Publication number
EP0954200A2
EP0954200A2 EP99106762A EP99106762A EP0954200A2 EP 0954200 A2 EP0954200 A2 EP 0954200A2 EP 99106762 A EP99106762 A EP 99106762A EP 99106762 A EP99106762 A EP 99106762A EP 0954200 A2 EP0954200 A2 EP 0954200A2
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EP
European Patent Office
Prior art keywords
recess
loudspeaker
membrane
opening
basket
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.)
Granted
Application number
EP99106762A
Other languages
German (de)
French (fr)
Other versions
EP0954200A3 (en
EP0954200B1 (en
Inventor
Andreas Grotefendt
Ludwig Klapproth
Hans-Georg Knop
Christian Vehorn
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Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Publication date
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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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • 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
    • H04R2201/34—Directing or guiding sound by means of a phase plug
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of 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
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention is based on a loudspeaker or Loudspeaker basket or door module with integrated loudspeaker according to the genre of independent claims. It is known, Loudspeaker membranes on recessed baskets to fix. Rear sound can be unimpeded through the recesses onto the membrane and thus the room to be sonicated. Still is known to membranes from glass fiber reinforced plastics use. These have a large mass and dampen rear sound, but lead with the same control too low sound pressure and are expensive to manufacture.
  • FIG. 1 shows a cross-sectional side view a known speaker structure
  • Figure 2 is a first Embodiment
  • Figure 3 shows a second Embodiment.
  • FIG. 1 shows the basic structure of a speaker a membrane 1 which is attached to a basket 4.
  • the Membrane is made of cardboard or glass fiber reinforced Plastic, the basket made of metal or plastic.
  • the membrane 1 is rotationally symmetrical to the axis of symmetry 10 with a Magnet system 2 connected.
  • the basket 4 has cutouts 20 on.
  • the magnet system 2 excites the membrane 1 to mechanical Vibrations that lead to sound radiation.
  • the Recesses 20 serve to enable one Pressure equalization between the space between the membrane and the basket on the one hand and the space outside the basket on the other. This pressure compensation is particularly important in the case of deep tones required in order to avoid the large vibration amplitudes Diaphragm caused pressure fluctuations in the space between Compensate membrane and basket.
  • FIG. 2 shows a speaker, the membrane 1 and Magnet system 2, centered by a centering unit 3, are arranged in the interior of the basket 4.
  • the Centering unit consists for example of corrugated Resin fabric.
  • the basket is partially double-walled and has flow channels 6 through the double wall and struts 5 arranged therebetween are formed.
  • the entirety of the flow channels is rotationally symmetrical the axis of symmetry 10 is arranged; the channels have lower ones Channel openings 7 and upper channel openings 8.
  • the Upper channel openings 8 connect the space between the membrane 1 and basket 4 with the flow channels, the lower ones Channel openings 7 connect the flow channels with the rear exterior of the speaker.
  • the Flow channels typically have a diameter of approx. 5 by 5 millimeters, with the channels in the shown Taper example to the lower channel openings 7.
  • the lower channel openings 7 are on the lower part 9 of the Magnet system 2 aligned.
  • the basket 4 is for example can be produced from plastic in an injection molding process.
  • the flow channels 6 ensure pressure equalization between the back of the speaker and the Space between the speaker diaphragm and the basket. This is a prerequisite for low tones in particular Functionality of the loudspeaker. Obstruct the channels in no way an air flow that is for you Pressure equalization is required, however, they provide one Flow resistance or sound resistance for sound waves higher frequency. In particular sound waves with a Frequency higher than 400 Hz, for example from the rear exterior of the speaker through the bottom Channel openings 7 get into the flow channels 6 effectively dampened on the way towards membrane 1. It is important that the length of the flow channels is greater than their diameter and that there is optional kink (in Figure 2 a kink at the level of the attachment of the Centering unit 3 arranged) installed in the channels are.
  • FIG. 3 shows a further cross-sectional side view of a Embodiment of the invention, due to the For the sake of simplicity, rotational symmetry is only one Half of the view is shown.
  • the basket 4 consists in essentially of a sleeve 22 with an outer Diameter, which is the diameter of the speaker diaphragm corresponds, with the cuff of parallel Flow channels 6 is penetrated.
  • the flow channels are arranged in two rows, whereby the upper channel openings of the more to Rotation symmetry axis 10 arranged flow channels something according to the course of the speaker diaphragm 1 are shorter than the outer flow channels.
  • the basket 4 also has a connecting element 21, which Magnet system 2, the centering unit 3 and the basket 4th fixed relative to each other.
  • the lower channel openings 7 are approximately at the same level as the lower limit the lower part 9 of the magnet system 2.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The loudspeaker has a loudspeaker membrane (1) supported by a loudspeaker frame (4) with at least one flow channel opening (6), simultaneously providing pressure equalization and damping of high frequency sound waves. Also included are Independent claims for a loudspeaker frame to support a loudspeaker membrane, and for a door module with a loudspeaker for incorporation into an automobile door

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Lautsprecher bzw. Lautsprecherkorb bzw. Türmodul mit integriertem Lautsprecher nach der Gattung der unabhängigen Ansprüche. Es ist bekannt, Lautsprechermembranen an mit Aussparungen versehenen Körben zu befestigen. Rückseitiger Schall kann hierbei ungehindert durch die Aussparungen hindurch auf die Membran und damit den zu beschallenden Raum übertragen werden. Weiterhin ist bekannt, Membranen aus glasfaserverstärkten Kunststoffen zu verwenden. Diese besitzen eine große Masse und dämpfen rückseitigen Schall, führen bei gleicher Ansteuerung jedoch zu niedrigem Schalldruck und sind teuer in der Herstellung.The invention is based on a loudspeaker or Loudspeaker basket or door module with integrated loudspeaker according to the genre of independent claims. It is known, Loudspeaker membranes on recessed baskets to fix. Rear sound can be unimpeded through the recesses onto the membrane and thus the room to be sonicated. Still is known to membranes from glass fiber reinforced plastics use. These have a large mass and dampen rear sound, but lead with the same control too low sound pressure and are expensive to manufacture.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäßen Anordnungen mit den kennzeichnenden Merkmalen der unabhängigen Ansprüche haben demgegenüber den Vorteil, preiswert und unter Verwendung gängiger Lautsprecheransteuerungen eine effektive Dämpfung rückseitigen Schalls zu gewährleisten, wobei gleichzeitig hinter dem Korb sich befindliches Volumen, insbesondere das Türvolumen im Innern einer Kraftfahrzeugtür, als Resonanzvolumen für Baßtöne verwendbar ist.The arrangements according to the invention with the characteristic In contrast, features of the independent claims have the Advantage, inexpensive and using common Speaker controls an effective damping ensure back sound while being Volume behind the basket, especially that Door volume inside a motor vehicle door, as Resonance volume for bass tones can be used.

Durch die in den abhängigen Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der in den unabhängigen Ansprüchen angegebenen Anordnungen möglich. Besonders vorteilhaft ist die Ausgestaltung der Aussparungen als Strömungskanäle, die in ihrem Durchmesser, ihrem Verlauf und der Zahl von Knicken geeignet wählbar sind, je nach akustischen und/oder räumlichen Anforderungen bzw. Begrenzungen.By those listed in the dependent claims Measures are advantageous training and Improvements in the independent claims specified arrangements possible. It is particularly advantageous the design of the recesses as flow channels in their diameter, their course and the number of kinks are suitable, depending on the acoustic and / or spatial requirements or limitations.

Insbesondere für in Kraftfahrzeugtüren eingebaute Baßlautsprecher erweist sich das Vorsehen schalldämmender Aussparungen als vorteilhaft. Außenlärm aus dem Außenraum des Kraftfahrzeugs, der insbesondere im Lautsprechereinbaubereich der Tür, in dem die Türinnenverkleidung ausgedünnt ist, an sich in den Innenraum des Kraftfahrzeugs dringen könnte, wird durch die schalldämmende Ausführung der Aussparungen an einem Auftreffen auf die Lautsprechermembran und damit am Eindringen in die Fahrgastzelle gehindert. Gleichzeitig werden durch die Druckausgleichsmöglichkeit über die Aussparungen tiefe Frequenzen, insbesondere tiefe Baßfrequenzen, ungehindert in den Hohlraum der Kraftfahrzeugtür übertragen, wodurch der gesamte Türhohlraum

Figure 00020001
trotz" Abdämpfung des Lärmschalls von außen als Baßresonanzkörper an den Lautsprecher akustisch gekoppelt ist. The provision of sound-absorbing cutouts has proven to be particularly advantageous for bass speakers installed in motor vehicle doors. External noise from the outside of the motor vehicle, which could penetrate into the interior of the motor vehicle in particular in the loudspeaker installation area of the door, in which the door interior trim is thinned out, is due to the sound-absorbing design of the cutouts when it hits the loudspeaker membrane and thus penetrates into the Passenger cell hindered. At the same time, due to the possibility of pressure equalization, low frequencies, in particular low bass frequencies, are transmitted unhindered into the cavity of the motor vehicle door, as a result of which the entire door cavity
Figure 00020001
despite "damping the noise from the outside as a bass resonance body is acoustically coupled to the speaker.

Werden untere Öffnungen der Aussparungen auf das Magnetsystem des Lautsprechers gerichtet, so dient der Druckausgleich für Baßtöne neben der akustischen Ankopplung eines (Tür-)Hohlraums gleichzeitig als Kühlung für das Magnetsystem des Lautsprechers.Are the lower openings of the recesses on the Magnetic system of the speaker directed, so the Pressure equalization for bass tones in addition to the acoustic coupling of a (door) cavity at the same time as cooling for the Magnet system of the speaker.

Weitere Vorteile ergeben sich aus den in den weiteren abhängigen Ansprüchen genannten Merkmalen.Further advantages result from those in the others dependent claims mentioned features.

Zeichnungdrawing

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 eine Querschnittsseitenansicht eines bekannten Lautsprecheraufbaus, Figur 2 ein erstes Ausführungsbeispiel und Figur 3 ein zweites Ausführungsbeispiel.Embodiments of the invention are in the drawing shown and in the following description explained. FIG. 1 shows a cross-sectional side view a known speaker structure, Figure 2 is a first Embodiment and Figure 3 shows a second Embodiment.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Figur 1 zeigt den Prinzipaufbau eines Lautsprechers mit einer Membran 1, die an einem Korb 4 befestigt ist. Die Membran besteht aus Pappe oder glasfaserverstärktem Kunststoff, der Korb aus Metall oder Kunststoff. Die Membran 1 ist rotationssymmetrisch zur Symmetrieachse 10 mit einem Magnetsystem 2 verbunden. Der Korb 4 weist Aussparungen 20 auf.Figure 1 shows the basic structure of a speaker a membrane 1 which is attached to a basket 4. The Membrane is made of cardboard or glass fiber reinforced Plastic, the basket made of metal or plastic. The membrane 1 is rotationally symmetrical to the axis of symmetry 10 with a Magnet system 2 connected. The basket 4 has cutouts 20 on.

Das Magnetsystem 2 regt die Membran 1 zu mechanischen Schwingungen an, die zur Schallabstrahlung führen. Die Aussparungen 20 dienen zur Ermöglichung eines Druckausgleichs zwischen dem Raum zwischen Membran und Korb einerseits und dem Raum außerhalb des Korbs andererseits. Insbesondere bei tiefen Tönen ist dieser Druckausgleich erforderlich, um die durch große Schwingungsamplituden der Membran verursachten Druckschwankungen in dem Raum zwischen Membran und Korb auszugleichen.The magnet system 2 excites the membrane 1 to mechanical Vibrations that lead to sound radiation. The Recesses 20 serve to enable one Pressure equalization between the space between the membrane and the basket on the one hand and the space outside the basket on the other. This pressure compensation is particularly important in the case of deep tones required in order to avoid the large vibration amplitudes Diaphragm caused pressure fluctuations in the space between Compensate membrane and basket.

Figur 2 zeigt einen Lautsprecher, dessen Membran 1 und Magnetsystem 2, durch eine Zentrierungseinheit 3 zentriert, im Innenraum des Korbes 4 angeordnet sind. Die Zentrierungseinheit besteht beispielsweise aus gewelltem Harzgewebe. Der Korb ist teilweise doppelwandig ausgeführt und weist Strömungskanäle 6 auf, die durch die doppelte Wand und dazwischen angeordnete Streben 5 gebildet werden. Die Gesamtheit der Strömungskanäle ist rotationssymmetrisch um die Symmetrieachse 10 angeordnet; die Kanäle weisen untere Kanalöffnungen 7 sowie obere Kanalöffnungen 8 auf. Die oberen Kanalöffnungen 8 verbinden den Raum zwischen Membran 1 und Korb 4 mit den Strömungskanälen, die unteren Kanalöffnungen 7 verbinden die Strömungskanäle mit dem rückseitigen Außenraum des Lautsprechers. Die Strömungskanäle haben typischerweise einen Durchmesser von ca. 5 mal 5 Millimetern, wobei sich die Kanäle im gezeigten Beispiel zu den unteren Kanalöffnungen 7 etwas verjüngen. Die unteren Kanalöffnungen 7 sind auf den unteren Teil 9 des Magnetsystems 2 ausgerichtet. Der Korb 4 ist beispielsweise aus Kunststoff in einem Spritzgußverfahren herstellbar.Figure 2 shows a speaker, the membrane 1 and Magnet system 2, centered by a centering unit 3, are arranged in the interior of the basket 4. The Centering unit consists for example of corrugated Resin fabric. The basket is partially double-walled and has flow channels 6 through the double wall and struts 5 arranged therebetween are formed. The The entirety of the flow channels is rotationally symmetrical the axis of symmetry 10 is arranged; the channels have lower ones Channel openings 7 and upper channel openings 8. The Upper channel openings 8 connect the space between the membrane 1 and basket 4 with the flow channels, the lower ones Channel openings 7 connect the flow channels with the rear exterior of the speaker. The Flow channels typically have a diameter of approx. 5 by 5 millimeters, with the channels in the shown Taper example to the lower channel openings 7. The lower channel openings 7 are on the lower part 9 of the Magnet system 2 aligned. The basket 4 is for example can be produced from plastic in an injection molding process.

Die Strömungskanäle 6 gewährleisten einen Druckausgleich zwischen rückseitigem Außenraum des Lautsprechers und dem Raum zwischen Lautsprechermembran und Korb. Dies ist insbesondere für tiefe Töne eine Voraussetzung für die Funktionstüchtigkeit des Lautsprechers. Die Kanäle behindern also in keinster Weise einen Luftstrom, der für einen Druckausgleich erforderlich ist, sie stellen jedoch einen Strömungswiderstand bzw. Schallwiderstand für Schallwellen höherer Frequenz dar. Insbesondere Schallwellen mit einer Frequenz höher als 400 Hz, die beispielsweise aus dem rückseitigen Außenraum des Lautsprechers durch die unteren Kanalöffnungen 7 in die Strömungskanäle 6 gelangen, werden auf dem Weg Richtung Membran 1 wirksam gedämpft. Dabei ist von Bedeutung, daß die Länge der Strömungskanäle größer ist als ihr Durchmesser und daß wahlweise Knicke (in Figur 2 ist ein Knick auf der Höhe der Befestigung der Zentrierungseinheit 3 angeordnet) in den Kanälen eingebaut sind.The flow channels 6 ensure pressure equalization between the back of the speaker and the Space between the speaker diaphragm and the basket. This is a prerequisite for low tones in particular Functionality of the loudspeaker. Obstruct the channels in no way an air flow that is for you Pressure equalization is required, however, they provide one Flow resistance or sound resistance for sound waves higher frequency. In particular sound waves with a Frequency higher than 400 Hz, for example from the rear exterior of the speaker through the bottom Channel openings 7 get into the flow channels 6 effectively dampened on the way towards membrane 1. It is important that the length of the flow channels is greater than their diameter and that there is optional kink (in Figure 2 a kink at the level of the attachment of the Centering unit 3 arranged) installed in the channels are.

Figur 3 zeigt eine weitere Querschnittsseitenansicht eines Ausführungsbeispiels der Erfindung, wobei aufgrund der Rotationssymmetrie der Einfachheit halber lediglich eine Hälfte der Ansicht dargestellt ist. Der Korb 4 besteht im wesentlichen aus einer Manschette 22 mit einem äußeren Durchmesser, der dem Durchmesser der Lautsprechermembran entspricht, wobei die Manschette von parallelverlaufenden Strömungskanälen 6 durchsetzt ist. Im gezeigten Beispiel sind die Strömungskanäle in zwei Reihen angeordnet, wobei die oberen Kanalöffnungen der mehr zur Rotationssymmetrieachse 10 hin angeordneten Strömungskanäle entsprechend dem Verlauf der Lautsprechermembran 1 etwas kürzer sind als die äußeren Strömungskanäle. Der Korb 4 weist weiterhin ein Verbindungselement 21 auf, das das Magnetsystem 2, die Zentrierungseinheit 3 und den Korb 4 relativ zueinander fixiert. Die unteren Kanalöffnungen 7 sind ungefähr auf gleicher Höhe wie die untere Begrenzung des unteren Teils 9 des Magnetsystems 2. Figure 3 shows a further cross-sectional side view of a Embodiment of the invention, due to the For the sake of simplicity, rotational symmetry is only one Half of the view is shown. The basket 4 consists in essentially of a sleeve 22 with an outer Diameter, which is the diameter of the speaker diaphragm corresponds, with the cuff of parallel Flow channels 6 is penetrated. In the example shown the flow channels are arranged in two rows, whereby the upper channel openings of the more to Rotation symmetry axis 10 arranged flow channels something according to the course of the speaker diaphragm 1 are shorter than the outer flow channels. The basket 4 also has a connecting element 21, which Magnet system 2, the centering unit 3 and the basket 4th fixed relative to each other. The lower channel openings 7 are approximately at the same level as the lower limit the lower part 9 of the magnet system 2.

Die Funktionsweise des Korbes als Halterung mit schalldämmender Wirkung, die gleichzeitig einen Druckausgleich ermöglicht, ist die gleiche wie im Zusammenhang mit Figur 2 bereits beschrieben. Je kleiner die Zentrierungseinheit 3 ausgelegt werden kann, desto mehr Reihen von Strömungskanälen können angeordnet werden, d.h. desto dicker kann die Manschette ausgeführt werden. Die Ausführung des Korbes als Manschette erweist sich als preiswerte, weil fertigungstechnisch einfache Realisierung des erfindungsgemäßen Korbes.The functioning of the basket as a holder with sound-absorbing effect that at the same time Allows pressure equalization is the same as in Already described in connection with FIG. The smaller the Centering unit 3 can be designed, the more Rows of flow channels can be arranged, i.e. the thicker the cuff can be made. The Execution of the basket as a cuff proves to be Inexpensive because it is easy to manufacture of the basket according to the invention.

Claims (9)

Lautsprecher, insbesondere Baßlautsprecher, mit einer Membran (1), wobei die Membran über einen mit mindestens einer Aussparung (20; 6) versehenen Korb gelagert ist, dadurch gekennzeichnet, daß die mindestens eine Aussparung so ausgebildet ist, daß sie einen Druckausgleich zwischen Räumen vor und hinter der Aussparung gewährleistet und daß durch die Aussparung durchlaufender Schall höherer Frequenzen gedämpft wird.Speakers, especially bass speakers, with a Membrane (1), the membrane having at least one a recess (20; 6) provided basket is stored, characterized in that the at least one recess is designed so that it has a pressure equalization between Cleared spaces in front of and behind the recess and that through the recess continuous sound higher Frequencies is damped. Lautsprecher nach Anspruch 1, dadurch gekennzeichnet, daß die Aussparung als Strömungskanal (6) ausgebildet ist.Loudspeaker according to claim 1, characterized in that the recess is designed as a flow channel (6). Lautsprecher nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Aussparung eine obere, der Membran (1) zugewandte Öffnung (8) und eine untere Öffnung (7) aufweist, wobei Schall mit höheren Frequenzen, der an der unteren Kanalöffnung (7) in die Aussparung eintritt, gedämpft wird und Schall mit niedrigen Frequenzen, der an der oberen Öffnung (8) in die Aussparung eintritt, ungedämpft durch den Kanal geleitet wird. Loudspeaker according to claim 1 or 2, characterized characterized in that the recess is an upper, the membrane (1) facing opening (8) and a lower opening (7) has, wherein sound with higher frequencies that at the lower channel opening (7) enters the recess, is damped and low-frequency sound that is the upper opening (8) enters the recess, is passed through the channel undamped. Lautsprecher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er in einer Öffnung der Innenseite einer Kraftfahrzeugtür einbaubar ausgebildet ist.Loudspeaker according to one of the preceding claims, characterized in that it is in an opening of the Is designed to be installed inside a motor vehicle door. Lautsprecher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß durch die Aussparung durchlaufender Schall mit Frequenzen größer als 400 Hz stark gedämpft wird.Loudspeaker according to one of the preceding claims, characterized in that through the recess continuous sound with frequencies greater than 400 Hz strong is steamed. Lautsprecher nach Anspruch 3, dadurch gekennzeichnet, daß er ein Magnetsystem (2) aufweist, mit dem die Membran (1) angetrieben werden kann, und daß die untere Kanalöffnung (7) so angeordnet ist, daß aus ihr austretende Luft auf das Magnetsystem (2) gerichtet ist.Loudspeaker according to claim 3, characterized in that it has a magnet system (2) with which the membrane (1) can be driven, and that the lower channel opening (7) is arranged so that air emerging from it on the Magnet system (2) is directed. Korb zur Verwendung als rückseitige Halterung von Lautsprechermembranen, mit mindestens einer Aussparung (20; 6), dadurch gekennzeichnet, daß die mindestens eine Aussparung so ausgebildet ist, daß sie einen Druckausgleich zwischen Räumen vor und hinter der Aussparung gewährleistet und gleichzeitig durchlaufenden Schall höherer Frequenzen dämpft.Basket for use as a rear holder of Loudspeaker membranes, with at least one recess (20; 6), characterized in that the at least one Recess is designed so that it has pressure equalization guaranteed between rooms in front of and behind the recess and at the same time continuous sound of higher frequencies dampens. Korb nach Anspruch 7, dadurch gekennzeichnet, daß er in einer Öffnung der Innenseite einer Kraftfahrzeugtür einbaubar ausgebildet ist.Basket according to claim 7, characterized in that it is in an opening of the inside of a motor vehicle door is built-in. Türmodul einer Kraftfahrzeugtür, insbesondere Innenraumverkleidung einer Kraftfahrzeugtür, mit integriertem Lautsprecher, insbesondere Baßlautsprecher, wobei der Lautsprecher eine Membran aufweist und die Membran über einen mit mindestens einer Aussparung (20; 6) versehenen Korb gelagert ist, dadurch gekennzeichnet, daß die mindestens eine Aussparung so ausgebildet ist, daß sie einen Druckausgleich zwischen Räumen vor und hinter der Öffnung gewährleistet und gleichzeitig durchlaufenden Schall höherer Frequenzen dämpft.Door module of a motor vehicle door, in particular Interior trim of a motor vehicle door, with integrated loudspeaker, especially bass loudspeaker, the speaker having a membrane and the membrane via one with at least one recess (20; 6) provided basket is stored, characterized in that the at least one recess is designed so that it a pressure equalization between rooms in front of and behind the Opening guaranteed and at the same time continuous sound dampens higher frequencies.
EP19990106762 1998-04-09 1999-04-03 Loudspeaker Expired - Lifetime EP0954200B1 (en)

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DE19816060 1998-04-09

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EP0954200A3 EP0954200A3 (en) 2006-05-10
EP0954200B1 EP0954200B1 (en) 2008-01-02

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WO2017148008A1 (en) * 2016-02-29 2017-09-08 歌尔声学股份有限公司 Loudspeaker module
US11202134B2 (en) 2016-02-29 2021-12-14 Goertek Inc. Speaker module

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EP0954200A3 (en) 2006-05-10
EP0954200B1 (en) 2008-01-02
DE59914592D1 (en) 2008-02-14

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