EP3477963A1 - Lautsprechersystem - Google Patents

Lautsprechersystem Download PDF

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Publication number
EP3477963A1
EP3477963A1 EP18000468.1A EP18000468A EP3477963A1 EP 3477963 A1 EP3477963 A1 EP 3477963A1 EP 18000468 A EP18000468 A EP 18000468A EP 3477963 A1 EP3477963 A1 EP 3477963A1
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EP
European Patent Office
Prior art keywords
membrane
housing
loudspeaker system
hard
loudspeaker
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Granted
Application number
EP18000468.1A
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English (en)
French (fr)
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EP3477963B1 (de
Inventor
Rafael Kubisz
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Individual
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/023—Transducers incorporated in garment, rucksacks or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/025—Diaphragms comprising polymeric materials

Definitions

  • the invention relates to a speaker system.
  • Loudspeaker systems or, according to another common name, sound transducers are used to convert electrical energy into sound waves. These membranes are usually put into mechanical vibrations.
  • Loudspeakers are used in speakers, radios, televisions, radio receivers, hand-held radios, test receivers, mobile phones and MP3 players.
  • the invention has for its object to expand the application of speaker systems, especially in mobile devices.
  • Fig. 1 an exemplary loudspeaker system can be seen to have an oval basic shape.
  • the upper side is essentially formed by the membrane 1, which consists of an approximately 3 mm thick flat plate of hard-foamed PVC (FOREX).
  • FOREX hard-foamed PVC
  • materials with similar properties for example on the basis of thermoplastic polyurethane or extruded polypropylene allows an extremely hard and lightweight construction of the membrane, which no longer needs to be protected by a grill or other cover ,
  • Floating mounted drivers behind the membrane 1 allow the user to come in contact with the membrane and thus feel the sound pressure, making music noticeable and not only audible.
  • the membrane 1 is connected to the housing 3.
  • This is advantageously made of extruded polypropylene, whereby it has high strength with low weight.
  • the elasticity of the material allows controls in the form of push buttons 4,5 in the To integrate housing 3, as provided in the embodiment on the underside of the speaker system.
  • the membrane 1 is by embedded on the inside of the device pushbuttons and magnetic switch to the control surface.
  • a particularly advantageous embodiment of the loudspeaker system according to the invention is obtained when a coupling process with other loudspeaker systems can be triggered by magnetic switches integrated in the membrane.
  • This coupling can be done for example by means of Bluetooth or Wifi and several speaker systems can then synchronously play the same music.
  • the housing 3 made of extruded polypropylene is given a high flexibility in the design of the housing. Due to the low weight of the material, the housing 3 can also serve as a floating body. Its elasticity causes the internal sound pressure generated by the membrane 1 to be reproduced via the housing 3 and when used on a water surface, the housing transmits sound waves to the water.
  • housing 3 is coupled to other hollow bodies such as empty boxes or plastic containers by touch, sound is transmitted to them, thereby causing a better reproduction of low frequencies.
  • the played music can be made noticeable, which can support, for example, relaxation techniques and therapies.
  • Fig. 2 shows a cross section through an exemplary speaker system with membrane 1, rubber bead 2, 3 housing and a frame for the control electronics for the speaker in particular an accumulator including charge interface, and signal processor unit, acoustic transducers and communication units based on Bluetooth and WiFi with a signal source but also with includes other speaker systems.
  • the combination of the membrane 1 according to the invention from a flat plate made of a hard-foamed plastic with a housing made of extruded polypropylene allows particularly robust, versatile loudspeaker systems with extraordinary sound properties.
  • display elements such as LEDs can also be integrated into the membrane 1 or the housing 3.
  • the charging interface 7 can be carried out wirelessly.
  • the possibility of inductive charging makes it easy to handle the charging process.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Die Erfindung betrifft ein Lautsprechersystem mit einer Membran, wobei die Membran(1) aus einer ebenen Platte aus einem hartgeschäumtem Kunststoff, vorzugsweise aus einer etwa 3 mm starken ebenen Platte aus hartgeschäumtem PVC besteht und das Gehäuse aus extrudiertem Polypropylen aufgebaut ist.

Description

  • Die Erfindung betrifft ein Lautsprechersystem.
  • Lautsprechersysteme oder nach einer weiteren üblichen Bezeichnung Schallwandler werden zur Umwandlung elektrischer Energie in Schallwellen eingesetzt. Dazu werden meist Membranen in mechanische Schwingungen versetzt.
  • Verwendet werden Lautsprecher unter anderem in Lautsprecherboxen, Radios, Fernsehgeräten, Funkempfängern, Handsprechfunkgeräten, Messempfängern, Mobiltelefonen und MP3-Player.
  • Vor allem bei mobilen Geräten, die auch im Freien eingesetzt werden, ist eine robuste Ausführungsform erforderlich, die gegenüber Umwelteinflüssen wie insbesondere Feuchtigkeit widerstandsfähig ist.
  • Der Erfindung liegt die Aufgabe zugrunde, die Einsatzmöglichkeiten von Lautsprechersystemen vor allem bei mobilen Geräten zu erweitern.
  • Diese Aufgabe wird erfindungsgemäß gelöst mit einem Lautsprechersystem gemäß Anspruch 1.
  • Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.
  • Die Erfindung wird anhand von in den Figuren dargestellten Ausführungsbeispielen näher erläutert. Es zeigen beispielhaft:
    • Fig. 1 ein erfindungsgemäßes Lautsprechersystem in drei unterschiedlichen Ansichten, von oben, seitlich und von unten.
    • Fig. 2 einen Querschnitt durch ein erfindungsgemäßes Lautsprechersystem.
  • Wie aus Fig. 1 ersichtlich weist ein beispielhaftes Lautsprechersystem eine ovale Grundform auf. Die Oberseite wird im Wesentlichen von der Membran 1 gebildet, die aus einer etwa 3 mm starken ebenen Platte aus hartgeschäumtem PVC (FOREX) besteht.
  • Durch die ebene Ausführung der Membran kann sich bei Einsatz des Lautsprechersystems in Wasser keine stehende Wassersäule auf dieser bilden und der Klang wird durch Wasser nicht negativ beinträchtig.
  • Der Einsatz von hartgeschäumtem PVC (FOREX), oder Materialien mit ähnlichen Eigenschaften, beispielsweise auf Basis von thermoplastischem Polyurethan oder extrudiertem Polypropylen ermöglicht eine extrem harte und leichte Bauweise der Membran, womit muss diese nicht mehr zusätzlich durch einen Grill oder eine andere Abdeckung geschützt werden muss.
  • Dies ermöglicht es, dass die Membran auch durch Design, Druck, Bilder Logos und Motive veredelt wird und somit zur wesentlichen Gestaltung des äußerlichen Designs herangezogen werden kann.
  • Durch frei schwebend montierte Treiber hinter der Membran 1 wird es ermöglicht, dass der Benutzer mit der Membran in Berührung kommt und somit den Schalldruck auch spüren kann und Musik somit spürbar und nicht nur hörbar wird.
  • Mittels Gummisicke 2 ist die Membran 1 mit dem Gehäuse 3 verbunden. Dieses ist in vorteilhafter Weise aus extrudiertem Polypropylen hergestellt, wodurch es hohe Festigkeit bei geringem Gewicht aufweist. Die Elastizität des Materials ermöglicht es, Bedienelemente in Form von Drucktastern 4,5 in das Gehäuse 3 zu integrieren, wie sie bei dem Ausführungsbeispiel auf der Unterseite des Lautsprechersystemes vorgesehen sind.
  • Auch die Membran 1 wird durch an der Geräteinnenseite eingelassene Drucktasten und Magnetschalter zur Bedienfläche.
  • Sie kann weiterhin als Projektionsfläche für Videos verwendet werden.
  • Eine besonders vorteilhafte Ausgestaltung des erfindungsgemäßen Lautsprechersystems erhält man dann, wenn durch in der Membran integrierte Magnetschalter ein Kopplungsvorgang mit weiteren Lautsprechersystemen ausgelöst werden kann.
    Diese Kopplung kann beispielsweise mittels Bluetooth oder Wifi erfolgen und mehrere Lautsprechersysteme können dann synchron dieselbe Musik abspielen.
  • Diese "Pick my Tune" Funktionaliät kann beispielsweise dadurch ausgelöst werden, dass zwei Lautsprechersysteme an ihrer Membranseite aneinander gefügt werden.
  • Es ist dabei kein Drücken von zusätzlichen Tasten erforderlich, eine kurze Berührung zwischen den Membranen (Übereinander Legen) ist ausreichend um die Magnetschalter auszulösen. Es reicht auch ein kurzfristiges übereinander Positionieren, d.h. es bleibt ein Luftspalt zwischen den Membranen und eine physische Berührung ist nicht notwendig um die Magnetschalter zu aktivieren.
  • Durch die Herstellung des Gehäuses 3 aus extrudiertem Polypropylen ist eine hohe Flexibilität bei der Formgestaltung des Gehäuses gegeben. Durch das geringe Gewicht des Materials kann das Gehäuse 3 auch als Schwimmkörper dienen. Seine Elastizität bewirkt, dass der durch die Membran 1 erzeugte innere Schalldruck über das Gehäuse 3 wiedergegeben wird und beim Einsatz auf einer Wasseroberfläche das Gehäuse Schallwellen auf das Wasser überträgt.
  • Wenn das Gehäuse 3 an andere Hohlkörper wie leere Schachteln oder Plastikbehältnisse durch Berührung angekoppelt wird, wird Schall auf diese übertragen und dadurch eine bessere Wiedergabe von tiefen Frequenzen bewirkt.
  • Wenn das Lautsprechersystem am Körper, im Nacken oder auf den Bauch des menschlichen Körpers platziert wird, kann die abgespielte Musik spürbar gemacht werden, womit beispielsweise Entspannungstechniken und Therapien unterstützt werden können.
  • Fig. 2 zeigt einen Querschnitt durch ein beispielhaftes Lautsprechersystem mit Membran 1, Gummisicke 2, Gehäuse 3 und einem Rahmen für die Ansteuerelektronik für den Lautsprecher die insbesondere einen Akkumulator samt Ladeschnittstelle, sowie Signalprozessoreinheit, Akustikwandler und Kommunikationseinheiten auf Basis von Bluetooth und WiFi mit einer Signalquelle aber auch mit anderen Lautsprechersystemen umfasst.
  • Die Kombination der erfindungsgemäßen Membran 1 aus einer ebenen Platte aus einem hartgeschäumtem Kunststoff mit einem Gehäuse aus extrudiertem Polypropylen ermöglicht besonders robuste, vielseitig einsetzbare Lautsprechersysteme mit au-ßergewöhnlichen Klangeigenschaften.
  • Durch die erfindungsgemäße Ausgestaltung mit Bedienelementen wird weiterhin auf einfache Weise die Kopplung mehrerer Lautsprechersysteme ermöglicht.
  • Zusätzlich zu den Bedienelementen können auch Anzeigeelemente wie LEDs in die Membran 1 oder das Gehäuse 3 integriert werden.
  • Die Ladeschnittstelle 7 kann drahtlos ausgeführt werden. Durch die Möglichkeit des induktiven Ladens wird eine einfache Handhabe des Ladevorgangs möglich.
    • Bezugszeichenliste
    1. 1 Membran
    2. 2 Gummisicke
    3. 3 Gehäuse
    4. 4 Drucktaste Plus
    5. 5 Drucktaste Minus
    6. 6 Klebeband
    7. 7 Ladeschnittstelle

Claims (6)

  1. Lautsprechersystem mit einer Membran, dadurch gekennzeichnet, dass die Membran(1) aus einer ebenen Platte aus einem hartgeschäumtem Kunststoff besteht.
  2. Lautsprechersystem nach Anspruch 1, dadurch gekennzeichnet, dass die Membran(1) aus einer etwa 3 mm starken ebenen Platte aus hartgeschäumtem PVC besteht.
  3. Lautsprechersystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in die Membran(1) Bedienelemente integriert sind.
  4. Lautsprechersystem nach Anspruch 3, dadurch gekennzeichnet, dass durch in der Membran (1) integrierte Magnetschalter ein Kopplungsvorgang mit weiteren Lautsprechersystemen ausgelöst werden kann.
  5. Lautsprechersystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Gehäuse(3) aus extrudiertem Polypropylen aufgebaut ist.
  6. Lautsprechersystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass in das Gehäuse (3) Drucktasten (4,5)integriert sind.
EP18000468.1A 2017-05-19 2018-05-18 Lautsprechersystem Active EP3477963B1 (de)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023237817A1 (en) * 2022-06-10 2023-12-14 Kiulu Company Waterproof loudspeaker arrangement, method for fabricating a waterproof loudspeaker arrangement, and a product comprising a waterproof loudspeaker arrangement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847667B1 (de) * 1995-09-02 1999-03-03 New Transducers Limited Anschlagtafeln mit lautsprechern
EP2736269A1 (de) * 2011-07-21 2014-05-28 C-Eng Co., Ltd. Klangabstrahlender lautsprecher mit selbstresonanz und verfahren zur installation des klangabstrahlenden lautsprechers mit selbstresonanz
US20150027805A1 (en) * 2013-07-29 2015-01-29 Usher Audio Technology Speaker enclosure and method for fabricating the same
US20150222985A1 (en) * 2014-01-31 2015-08-06 Add|On Technology Waterproof Speaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847667B1 (de) * 1995-09-02 1999-03-03 New Transducers Limited Anschlagtafeln mit lautsprechern
EP2736269A1 (de) * 2011-07-21 2014-05-28 C-Eng Co., Ltd. Klangabstrahlender lautsprecher mit selbstresonanz und verfahren zur installation des klangabstrahlenden lautsprechers mit selbstresonanz
US20150027805A1 (en) * 2013-07-29 2015-01-29 Usher Audio Technology Speaker enclosure and method for fabricating the same
US20150222985A1 (en) * 2014-01-31 2015-08-06 Add|On Technology Waterproof Speaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023237817A1 (en) * 2022-06-10 2023-12-14 Kiulu Company Waterproof loudspeaker arrangement, method for fabricating a waterproof loudspeaker arrangement, and a product comprising a waterproof loudspeaker arrangement

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