WO2015193614A1 - Autonomous amplification device for a musical instrument - Google Patents

Autonomous amplification device for a musical instrument Download PDF

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Publication number
WO2015193614A1
WO2015193614A1 PCT/FR2015/051601 FR2015051601W WO2015193614A1 WO 2015193614 A1 WO2015193614 A1 WO 2015193614A1 FR 2015051601 W FR2015051601 W FR 2015051601W WO 2015193614 A1 WO2015193614 A1 WO 2015193614A1
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WO
WIPO (PCT)
Prior art keywords
enclosure
amplification device
amplifier
electrical devices
accumulator
Prior art date
Application number
PCT/FR2015/051601
Other languages
French (fr)
Inventor
Sébastien André René DESCAMPS
Pierre DA CAMPO
Original Assignee
Descamps Sébastien André René
Da Campo Pierre
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 Descamps Sébastien André René, Da Campo Pierre filed Critical Descamps Sébastien André René
Publication of WO2015193614A1 publication Critical patent/WO2015193614A1/en

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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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
    • G10H3/186—Means for processing the signal picked up from the strings
    • 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
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/028—Structural combinations of loudspeakers with built-in power amplifiers, e.g. in the same acoustic enclosure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • the invention relates to a device for amplifying a sound signal, in particular a signal produced by a musical instrument, a device comprising electrical devices in an acoustic chamber, electrical devices comprising in particular an amplifier arranged to amplify a sound signal received on a loudspeaker. speaker input terminal and a speaker arranged to output the amplified sound signal.
  • Amplification devices for high - performance sound - emitting musical instruments are traditionally connected to an electric power distribution network which provides them with the electrical power necessary to produce a high level of sound emission. To be used, these devices must be installed in the immediate vicinity of a socket of a power distribution network, which limits their use.
  • the invention proposes a new amplification device, moreover in accordance with an amplification device as described above and characterized in that it also comprises a photovoltaic panel arranged to supply electrical energy to the electrical devices.
  • the amplification device according to the invention is thus completely autonomous from an energy point of view and this without any time limit.
  • the amplification device can thus be used anywhere, including in places far away from any power distribution network.
  • the photovoltaic panel forms at least part of an upper face of the loudspeaker.
  • the size of the amplification device is limited to the volume of the acoustic enclosure, and the assembly can be moved in a single movement.
  • an active filter upstream of the amplifier limits the actual physical volume of the speaker, regardless of the resonance frequency of the speaker chosen, while maintaining a speaker tuned to the speaker. This allows a perfect reproduction of the entire audio frequency band in a small enclosure, and therefore low volume.
  • an amplification device comprising an enclosure with a physical volume of about fifty liters for an output sound power of 102 dB to one meter has been realized. Without an active filter, the physical volume of the speaker should have been about 120 liters for a speaker tuned to the same speaker.
  • the amplification device may further comprise an energy accumulator, for example a DC accumulator, an accumulator arranged to receive an electrical energy from the photovoltaic panel and to supply the electrical devices.
  • the battery allows the amplifier to be used at any time, even when the panel does not produce electrical energy, for example at night.
  • the accumulator is preferably fixed on a lower wall of the enclosure, inside the enclosure. Thus, the center of gravity of the enclosure is lowered for a better balance.
  • a hatch may be provided to provide access to the battery and thus facilitate its maintenance.
  • the amplification device may further comprise a charge management device, arranged to manage a charge of the accumulator according to an electrical energy supplied by the panel and an electric energy consumed by the electrical devices inside. the enclosure; this makes it possible to make the best use of the power generation capabilities of the panel while limiting in real time the consumption of the electrical devices, for the longest possible use of the amplification device.
  • the load management device may for example at any time stop the power supply of an electrical device when it is not used at time T or, on the contrary, supply an electric device once again. it is again necessary for the proper functioning of the amplification device.
  • the charge management device can also activate the charging of the battery at any time, including in parallel with the use of the amplification device. If solar radiation is not sufficient, an artificial light source can be used to illuminate the panel.
  • the load management device may include a battery charge indicator, accessible on one side of the enclosure; the user can thus know in real time the level of available energy and use the amplification device accordingly.
  • the amplifier is preferably a D-amplifier, with high electrical efficiency for high fidelity digital audio reproduction of the input sound signal by allowing a high level of sound emission.
  • amplification device producing an output signal of 102dB of power at one meter from the amplification device has been realized.
  • the amplification device may further comprise a pre - amplifier arranged to receive the sound signal to be amplified and to supply to the amplifier (or possibly the active filter situated upstream of the amplifier) a signal adjusted in user parameter function, including bass, midrange, treble and the overall volume of the beep sound.
  • the amplification device comprises a plurality of potentiometers arranged for setting the parameters by the user; the potentiometers are accessible on one face of the enclosure, for example the front face, to facilitate their use.
  • the amplification device may further comprise a plurality of input terminals arranged to receive a signal to be amplified, in particular a monophonic terminal for a musical instrument, a microphone monophonic terminal, a line input stereophonic terminal, each terminal comprising a socket for connecting, as appropriate, a musical instrument or microphone or line input, and a control potentiometer of an associated input level.
  • a connection allows the user to connect a musical instrument and / or a microphone and / or an external source of sound emission such as a walkman, a mobile phone, a tablet, etc.
  • the enclosure may comprise at least one gripping handle, for example integrated in a lateral flank of the enclosure.
  • the enclosure may include at least one decompression vent to limit the sound pressure inside the enclosure and further enhance the sound quality.
  • the decompression vent is integrated in the handle so as not to be visible.
  • FIGS. 1 and 2 are external views of the amplification device
  • FIG. 4 shows the electronic part of the amplification device.
  • the invention relates to a solar autonomous amplification device for musical instruments.
  • this device comprises a photovoltaic solar panel 1, a closed acoustic chamber 2 without decompression vent, a loudspeaker 3, a tweeter 4, a DC accumulator 6 storing the energy provided by the photovoltaic panel and the following electrical and electronic devices:
  • preamplifier 5 with potentiometers for user parameter settings (bass 5.7, midrange 5.8 and treble 5.9)
  • load management device 7 with charge indicator 5.15
  • the electronic diagram of the assembly is shown in fig. 4.
  • the 5.1, 5.3 and 5.5 input jacks are connected to the three inputs of the three-way mixer which mixes the received signals on its three input channels and supplies the resulting signal to the active filter 8.
  • the amplifier 9 amplifies the signal that it receives the active filter 8 and outputs the amplified signal on the speaker 3 and the tweeter 4 (loudspeaker for reproducing the high frequencies).
  • the preamplifier 5 makes it possible to adjust the bass, midrange and treble levels of the signal received on the instrument input jack 5.1 before its amplification.
  • the dimensions of the prototype enclosure produced are of the order of 400 mm in height, 400 mm in width and 300 mm in depth for a physical volume of the enclosure of the order of 50 liters.
  • the output power of the speaker is 102dB at one meter.
  • the panel approximately 400 mm wide and 300 mm deep, is integrated on the top of the enclosure to close the enclosure. It is oriented towards the rear of the speaker so that when the device is oriented towards the sun, the speaker is oriented on the opposite side to the sun, as well as the person using the device. Thus, the person is not bothered by the sun.
  • the panel is tilted back by approximately 5 to 15 °. This allows a better orientation with respect to the sun. Also, such inclination prevents that is placed on the panel an object likely to damage it.
  • the charge management device 7 comprises a device for regulating the charge and a device for managing the consumption of the electrical devices. Connected between the panel and the battery (Fig. 3), the charge control device manages the charge of the battery according to the energy it receives from the panel and the charge level of the battery, and therefore the consumption of electrical devices.
  • USB 5.13 socket accessible outside the enclosure and connected to the battery 6, via a voltage / voltage converter 11 in the example of fig.4.
  • the USB socket allows the charging of a small electrical device such as a phone, tablet, etc. from the accumulator 6.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

The invention concerns a device for amplifying a sound signal, in particular a signal produced by a musical instrument, said device comprising electrical devices in a loudspeaker enclosure (2), said electrical devices comprising, in particular, an amplifier (9) arranged to amplify a sound signal received at an input terminal of the enclosure and a loudspeaker (3, 4) arranged to reproduce the amplified sound signal, said amplification device being characterised in that it also comprises a photovoltaic panel (1) arranged to supply electrical energy to the electrical devices, and an active filter (8) arranged upstream from the amplifier to adjust a sound volume of the enclosure to the resonance frequency of the loudspeaker. Application to the production of a portable amplification device.

Description

Dispositif d'amplification autonome pour instrument de musique  Stand-alone amplification device for musical instrument
Domaine technique et état de l 'art  Technical field and state of the art
L' invention concerne un dispositif d' amplification d' un signal sonore, notamment un signal produit par un instrument de musique, dispositif comprenant des dispositifs électriques dans une enceinte acoustique, dispositifs électriques comprenant notamment un amplificateur agencé pour amplifier un signal sonore reçu sur une borne d' entrée de enceinte et un haut-parleur agencé pour restituer le signal sonore amplifié.  The invention relates to a device for amplifying a sound signal, in particular a signal produced by a musical instrument, a device comprising electrical devices in an acoustic chamber, electrical devices comprising in particular an amplifier arranged to amplify a sound signal received on a loudspeaker. speaker input terminal and a speaker arranged to output the amplified sound signal.
Les dispositifs d'amplification pour instruments de musique à haut rendement d' émission sonore sont traditionnellement branchés sur un réseau de distribution d' énergie électrique qui leur fournit la puissance électrique nécessaire à la production d' un haut niveau d' émission sonore. Pour pouvoir être utilisés, ces dispositifs doivent ainsi être installés à proximité immédiate d' une prise d' un réseau de distribution d' énergie, ce qui limite leur utilisation.  Amplification devices for high - performance sound - emitting musical instruments are traditionally connected to an electric power distribution network which provides them with the electrical power necessary to produce a high level of sound emission. To be used, these devices must be installed in the immediate vicinity of a socket of a power distribution network, which limits their use.
Les fabricants de dispositifs d'amplification proposent également des dispositifs d' amplification « semi- autonomes » à piles rechargeables sur secteur. Mais ceux-ci offrent dans la pratique un faible niveau d' émission sonore et une durée d'autonomie limitée, de l'ordre de 2 à 5H. The manufacturers of amplification devices also offer "semi-autonomous" amplifiers with mains rechargeable batteries. But these offer in practice a low level of noise emission and a limited duration of autonomy, of the order of 2 to 5H.
Description de l 'invention Description of the invention
L' invention propose un nouveau dispositif d' amplification, par ailleurs conforme à un dispositif d' amplification tel que décrit ci-dessus et caractérisé en ce qu' il comprend également un panneau photovoltaïque agencé pour fournir une énergie électrique aux dispositifs électriques. Le dispositif d' amplification selon l' invention est ainsi totalement autonome d' un point de vue énergétique et ceci sans limite dans le temps. Le dispositif d'amplification peut ainsi être utilisé en tout lieu, y compris dans des lieux éloignés de tout réseau de distribution d' énergie.  The invention proposes a new amplification device, moreover in accordance with an amplification device as described above and characterized in that it also comprises a photovoltaic panel arranged to supply electrical energy to the electrical devices. The amplification device according to the invention is thus completely autonomous from an energy point of view and this without any time limit. The amplification device can thus be used anywhere, including in places far away from any power distribution network.
Le panneau photovoltaïque forme une partie au moins d' une face supérieure de l' enceinte acoustique. Ainsi, l' encombrement du dispositif d' amplification est limité au volume de l' enceinte acoustique, et l' ensemble peut être déplacé en un seul mouvement.  The photovoltaic panel forms at least part of an upper face of the loudspeaker. Thus, the size of the amplification device is limited to the volume of the acoustic enclosure, and the assembly can be moved in a single movement.
L' utilisation d' un filtre actif en amont de l' amplificateur permet de limiter le volume réel physique de l' enceinte, quelle que soit la fréquence de résonance du haut-parleur choisi, tout en conservant une enceinte accordée au haut parleur. Ceci permet une restitution parfaite de toute la bande de fréquence audio dans une enceinte de petites dimensions, et donc de faible volume. A titre d' exemple a été réalisé un dispositif d'amplification comprenant une enceinte avec un volume physique d' environ cinquante litres pour une puissance sonore de sortie de 102dB à un mètre. Sans filtre actif, le volume physique de l' enceinte aurait dû être d' environ 120 litres pour une enceinte accordée sur le même haut-parleur. Le dispositif d' amplification peut encore comprendre un accumulateur d' énergie, par exemple un accumulateur à courant continu, accumulateur agencé pour recevoir une énergie électrique du panneau photovoltaïque et alimenter les dispositifs électriques. L' accumulateur permet d' utiliser l 'amplificateur à tout moment, y compris lorsque le panneau ne produit pas d' énergie électrique, la nuit par exemple. L' accumulateur est de préférence fixé sur une paroi inférieure de l' enceinte, à l' intérieur de l' enceinte. Ainsi, le centre de gravité de l' enceinte est abaissé pour un meilleur équilibre. The use of an active filter upstream of the amplifier limits the actual physical volume of the speaker, regardless of the resonance frequency of the speaker chosen, while maintaining a speaker tuned to the speaker. This allows a perfect reproduction of the entire audio frequency band in a small enclosure, and therefore low volume. By way of example, an amplification device comprising an enclosure with a physical volume of about fifty liters for an output sound power of 102 dB to one meter has been realized. Without an active filter, the physical volume of the speaker should have been about 120 liters for a speaker tuned to the same speaker. The amplification device may further comprise an energy accumulator, for example a DC accumulator, an accumulator arranged to receive an electrical energy from the photovoltaic panel and to supply the electrical devices. The battery allows the amplifier to be used at any time, even when the panel does not produce electrical energy, for example at night. The accumulator is preferably fixed on a lower wall of the enclosure, inside the enclosure. Thus, the center of gravity of the enclosure is lowered for a better balance.
Dans une paroi de l' enceinte, une trappe peut être prévue pour donner accès à l' accumulateur et ainsi faciliter sa maintenance. In a wall of the enclosure, a hatch may be provided to provide access to the battery and thus facilitate its maintenance.
Le dispositif d' amplification peut encore comprendre un dispositif de gestion de charge, agencé pour gérer une charge de l 'accumulateur en fonction d' une énergie électrique fournie par le panneau et d' une énergie électrique consommée par les dispositifs électriques à l ' intérieur de l' enceinte ; ceci permet d' utiliser au mieux les capacités de production d' énergie du panneau tout en limitant en temps réel la consommation des dispositifs électriques, pour une utilisation la plus longue possible du dispositif d'amplification. A cet effet, le dispositif de gestion de charge peut par exemple à tout instant T arrêter l'alimentation électrique d' un dispositif électrique lorsqu' il n' est pas utilisé à l ' instant T ou au contraire alimenter à nouveau un dispositif électrique lorsqu' il est à nouveau nécessaire au bon fonctionnement du dispositif d' amplification. Le dispositif de gestion de charge peut également activer la charge de l 'accumulateur à tout moment, y compris en parallèle de ' utilisation du dispositif d'amplification. Si le rayonnement solaire n' est pas suffisant, une source lumineuse artificielle peut être utilisée pour éclairer le panneau. Le dispositif de gestion de charge peut comprendre un indicateur de charge d'accumulateur, accessible sur une face de l' enceinte ; l' utilisateur peut ainsi connaître en temps réel le niveau d' énergie disponible et utiliser le dispositif d'amplification en conséquence.  The amplification device may further comprise a charge management device, arranged to manage a charge of the accumulator according to an electrical energy supplied by the panel and an electric energy consumed by the electrical devices inside. the enclosure; this makes it possible to make the best use of the power generation capabilities of the panel while limiting in real time the consumption of the electrical devices, for the longest possible use of the amplification device. For this purpose, the load management device may for example at any time stop the power supply of an electrical device when it is not used at time T or, on the contrary, supply an electric device once again. it is again necessary for the proper functioning of the amplification device. The charge management device can also activate the charging of the battery at any time, including in parallel with the use of the amplification device. If solar radiation is not sufficient, an artificial light source can be used to illuminate the panel. The load management device may include a battery charge indicator, accessible on one side of the enclosure; the user can thus know in real time the level of available energy and use the amplification device accordingly.
L'amplificateur est de préférence un amplificateur de c\asse D, à haut rendement électrique pour une restitution audio numérique haute fidélité du signal sonore d' entrée en permettant un haut niveau d' émission sonore. A titre d' exemple, un dispositif d' amplification produisant un signal de sortie de 102dB de puissance à un mètre du dispositif d' amplification a été réalisé.  The amplifier is preferably a D-amplifier, with high electrical efficiency for high fidelity digital audio reproduction of the input sound signal by allowing a high level of sound emission. By way of example, an amplification device producing an output signal of 102dB of power at one meter from the amplification device has been realized.
Le dispositif d' amplification selon l ' invention peut encore comprendre un pré-amplificateur agencé pour recevoir le signal sonore à amplifier et fournir à l' amplificateur (ou le cas échéant au filtre actif situé en amont de l'amplificateur) un signal ajusté en fonction de paramètres utilisateur, notamment les graves, les médiums, les aigus et le volume généra] du signal sonore restitué. En complément, le dispositif d'amplification comprend une pluralité de potentiomètres agencés pour le réglage des paramètres par l' utilisateur ; les potentiomètres sont accessibles sur une face de l ' enceinte, par exemple la face avant, pour faciliter leur usage. Le dispositif d'amplification peut encore comprendre une pluralité de bornes d' entrée agencées pour recevoir un signal à amplifier, notamment une borne monophonique pour instrument de musique, une borne monophonique pour microphone, une borne stéréophonique d'entrée ligne, chaque borne comprenant une prise pour connecter, selon le cas, un instrument de musique ou un microphone ou une entrée ligne, et un potentiomètre de rég\age d' un niveau d' entrée associé. Une telle connectique permet à l' utilisateur de brancher un instrument de musique et / ou un microphone et / ou une source extérieure d' émission sonore telle qu' un baladeur, un téléphone portable, une tablette, etc. The amplification device according to the invention may further comprise a pre - amplifier arranged to receive the sound signal to be amplified and to supply to the amplifier (or possibly the active filter situated upstream of the amplifier) a signal adjusted in user parameter function, including bass, midrange, treble and the overall volume of the beep sound. In addition, the amplification device comprises a plurality of potentiometers arranged for setting the parameters by the user; the potentiometers are accessible on one face of the enclosure, for example the front face, to facilitate their use. The amplification device may further comprise a plurality of input terminals arranged to receive a signal to be amplified, in particular a monophonic terminal for a musical instrument, a microphone monophonic terminal, a line input stereophonic terminal, each terminal comprising a socket for connecting, as appropriate, a musical instrument or microphone or line input, and a control potentiometer of an associated input level. Such a connection allows the user to connect a musical instrument and / or a microphone and / or an external source of sound emission such as a walkman, a mobile phone, a tablet, etc.
Pour faciliter la manipulation du dispositif selon l' invention, l' enceinte peut comprendre au moins une poignée de préhension, par exemple intégrée dans un flanc latéral de l ' enceinte.  To facilitate handling of the device according to the invention, the enclosure may comprise at least one gripping handle, for example integrated in a lateral flank of the enclosure.
Enfin, l' enceinte peut comprendre au moins un évent de décompression pour limiter la pression acoustique à l' intérieur de l' enceinte et améliorer encore la qualité sonore. L' évent de décompression est par exemple intégré dans la poignée de préhension pour ne pas être visible. Finally, the enclosure may include at least one decompression vent to limit the sound pressure inside the enclosure and further enhance the sound quality. For example, the decompression vent is integrated in the handle so as not to be visible.
Brève description des figures Brief description of the figures
L' invention sera mieux comprise, et d' autres caractéristiques et avantages de l' invention apparaîtront à la lumière de la description qui suit d' un exemple de dispositif d' amplification selon l' invention. Ces exemples sont donnés à titre non limitatif. La description est à lire en relation avec les dessins annexés dans lesquels The invention will be better understood, and other features and advantages of the invention will emerge in the light of the following description of an exemplary amplification device according to the invention. These examples are given in a non-limiting manner. The description is to be read in conjunction with the accompanying drawings in which
• les figures 1 et 2 sont des vues extérieures du dispositif d' amplification,  FIGS. 1 and 2 are external views of the amplification device,
• la figure 3 montre la partie électrique du dispositif d' amplification  • Figure 3 shows the electrical part of the amplification device
· la figure 4 montre la partie électronique du dispositif d' amplification.  FIG. 4 shows the electronic part of the amplification device.
Description d'un mode de réalisation de l ' invention Description of an embodiment of the invention
Comme dit précédemment, l' invention concerne un dispositif d' amplification autonome solaire pour instruments de musique. Selon le mode de réalisation représenté sur les figures, ce dispositif comprend un panneau 1 solaire de type photovoltaïque, une enceinte 2 acoustique close sans évent de décompression, un haut-parleur 3, un tweeter 4, un accumulateur 6 à courant continu stockant l' énergie fournie par le panneau photovoltaïque et les dispositifs électriques et électroniques suivants :  As mentioned above, the invention relates to a solar autonomous amplification device for musical instruments. According to the embodiment shown in the figures, this device comprises a photovoltaic solar panel 1, a closed acoustic chamber 2 without decompression vent, a loudspeaker 3, a tweeter 4, a DC accumulator 6 storing the energy provided by the photovoltaic panel and the following electrical and electronic devices:
• prise d' entrée instrument 5.1 et potentiomètre de réglage du niveau d' entrée 5.2 associé, prise d' entrée micro 5.3 et potentiomètre de réglage du niveau d' entrée 5.4 associé, prise d' entrée ligne 5.5 et potentiomètre de réglage du niveau d' entrée 5.6 associé, potentiomètre de réglage du volume général 5.10 • 5.1 instrument input jack and associated 5.2 input level adjustment potentiometer, 5.3 microphone input jack and associated 5.4 input level adjustment potentiometer, 5.5 line input jack and d - level adjustment potentiometer. 5.6 associated input, potentiometer for adjusting the overall volume 5.10
• prise d' entrée I sortie boucle d ' effet 5.11 • input socket I output effect loop 5.11
• préamplificateur 5 avec potentiomètres de réglages des paramètres utilisateur (graves 5.7, médiums 5.8 et aigus 5.9) • dispositif de gestion de charge 7 avec témoin de charge 5.15 • preamplifier 5 with potentiometers for user parameter settings (bass 5.7, midrange 5.8 and treble 5.9) • load management device 7 with charge indicator 5.15
• filtre électronique actif 8  • active electronic filter 8
• amplificateur 9 électronique de classe D.  • Class D electronic 9 amplifier.
Le schéma électronique de l ' ensemble est représenté fig. 4. Les prises d' entrée 5.1, 5.3 et 5.5 sont reliées aux trois entrée du mélangeur 10 trois voies qui mélange les signaux reçus sur ses trois voies d' entrée et fournit le signal résultant au filtre actif 8. L'amplificateur 9 amplifie le signal qu' il reçoit du filtre actif 8 et restitue le signal amplifié sur le haut-parleur 3 et le tweeter 4 (haut-parleur destiné à reproduire les fréquences élevées).  The electronic diagram of the assembly is shown in fig. 4. The 5.1, 5.3 and 5.5 input jacks are connected to the three inputs of the three-way mixer which mixes the received signals on its three input channels and supplies the resulting signal to the active filter 8. The amplifier 9 amplifies the signal that it receives the active filter 8 and outputs the amplified signal on the speaker 3 and the tweeter 4 (loudspeaker for reproducing the high frequencies).
Entre la prise d' entrée instrument 5.1 et l' entrée du mélangeur 10, le préamplificateur 5 permet d'ajuster les niveaux des graves, médiums, aigus du signal reçu sur la prise 5.1 d' entrée instrument avant son amplification. Between the instrument input jack 5.1 and the mixer input 10, the preamplifier 5 makes it possible to adjust the bass, midrange and treble levels of the signal received on the instrument input jack 5.1 before its amplification.
Ces éléments sont intégrés et assemblés dans l' enceinte 2 acoustique accordée à la fréquence de résonance du haut-parleur 3 au moyen du filtre actif numérique 8. These elements are integrated and assembled in the acoustic chamber 2 tuned to the resonant frequency of the loudspeaker 3 by means of the digital active filter 8.
A titre d' exemple, les dimensions de Y enceinte prototype réalisée sont de l' ordre de 400mm de hauteur, 400 mm de largeur et 300 mm de profondeur pour un volume physique de l' enceinte de l'ordre de 50 litres. La puissance de sortie de l ' enceinte est de 102dB à un mètre. By way of example, the dimensions of the prototype enclosure produced are of the order of 400 mm in height, 400 mm in width and 300 mm in depth for a physical volume of the enclosure of the order of 50 liters. The output power of the speaker is 102dB at one meter.
Le panneau, de dimensions environ 400 mm de largeur et 300 mm de profondeur, est intégré sur le dessus de l' enceinte pour fermer l' enceinte. Il est orienté vers l' arrière de l' enceinte de sorte que, lorsque le dispositif est orienté en direction du soleil, le haut parleur est orienté du coté opposé au soleil, de même que la personne utilisant le dispositif. Ainsi, la personne n' est pas gênée par le soleil. De plus, le panneau est incliné vers l' arrière d' environ 5 à 15°. Ceci permet une meilleure orientation par rapport au soleil. Egalement, une telle inclinaison évite que soit posé sur le panneau un objet susceptible de l' endommager.  The panel, approximately 400 mm wide and 300 mm deep, is integrated on the top of the enclosure to close the enclosure. It is oriented towards the rear of the speaker so that when the device is oriented towards the sun, the speaker is oriented on the opposite side to the sun, as well as the person using the device. Thus, the person is not bothered by the sun. In addition, the panel is tilted back by approximately 5 to 15 °. This allows a better orientation with respect to the sun. Also, such inclination prevents that is placed on the panel an object likely to damage it.
Le dispositif de gestion de charge 7 comprend un dispositif de régulation de la charge et un dispositif de gestion de la consommation des dispositifs électriques. Connecté entre le panneau et l 'accumulateur (fig. 3), le dispositif de régulation de la charge gère la charge de l' accumulateur en fonction de l' énergie qu' il reçoit du panneau et du niveau de charge de l 'accumulateur, et donc de la consommation des dispositifs électriques. The charge management device 7 comprises a device for regulating the charge and a device for managing the consumption of the electrical devices. Connected between the panel and the battery (Fig. 3), the charge control device manages the charge of the battery according to the energy it receives from the panel and the charge level of the battery, and therefore the consumption of electrical devices.
Est également prévue une prise USB 5.13 accessible à l' extérieur de l' enceinte et reliée à l' accumulateur 6, par l' intermédiaire d' un convertisseur 11 tension / tension dans l' exemple de la fig.4. La prise USB permet la recharge d' un petit appareil électrique tel qu' un téléphone, une tablette, etc. à partir de l' accumulateur 6. Nomenclature Also provided is a USB 5.13 socket accessible outside the enclosure and connected to the battery 6, via a voltage / voltage converter 11 in the example of fig.4. The USB socket allows the charging of a small electrical device such as a phone, tablet, etc. from the accumulator 6. Nomenclature
panneau photovoltaïque solar panel
enceinte pregnant
face supérieure  upper side
paroi inférieure  lower wall
2.3, 2.4 deux flancs latéraux  2.3, 2.4 two side flanks
2.5 face avant  2.5 front face
2.6 bandeau de commande  2.6 control panel
2.7, 2.8 poignées de préhension  2.7, 2.8 grip grips
2.9 fond 2.9 background
2.10 trappe  2.10 hatch
2.11 connectique de sortie  2.11 output connectors
haut-parleur loud speaker
tweeter (haut-parleur reproduisant les fréquences sonores élevées) tweeter (speaker reproducing high frequencies)
préamplificateur preamplifier
5.1 prise d' entrée monophonique pour instrument  5.1 instrument monophonic input jack
5.2 potentiomètre de rég\age du niveau d' entrée instrument  5.2 instrument input level control potentiometer
5.3 prise d' entrée monophonique pour microphone  5.3 monophonic microphone input jack
5.4 potentiomètre de rég\age du niveau d' entrée microphone  5.4 Microphone Input Level Control Potentiometer
5.5 prise d' entrée ligne stéréophonique 5.5 stereophonic line input jack
5.6 potentiomètre de rég\age du niveau d' entrée ligne stéréo  5.6 Stereo Line Input Level Control Potentiometer
5.7, 5.8, 5.9, 5.10 potentiomètre de rég\age respectivement des graves, des médiums, des aigus, et du niveau sonore global  5.7, 5.8, 5.9, 5.10 bass, midrange, treble, and overall volume control knobs respectively
5.11 entrée I sortie bouche d' effet 5.11 input I output effect mouth
5.12 interrupteur de mise sous tension 5.12 power switch
5.13 prise USB  5.13 USB socket
5.14 sortie ligne XLR  5.14 XLR line out
5.15 témoin de charge  5.15 charge indicator
accumulateur accumulator
dispositif de gestion de charge load management device
filtre actif active filter
amplificateur amplifier
mélangeur trois voies three way mixer
convertisseur converter

Claims

REVENDICATIONS
1. Dispositif d'amplification d' un signal sonore, notamment un signal produit par un instrument de musique, dispositif comprenant des dispositifs électriques dans une enceinte (2) acoustique, dispositifs électriques comprenant notamment un amplificateur (9) agencé pour amplifier un signal sonore reçu sur une borne d ' entrée 1. Device for amplification of a sound signal, in particular a signal produced by a musical instrument, device comprising electrical devices in an acoustic enclosure (2), electrical devices comprising in particular an amplifier (9) arranged to amplify an audible signal received on an input terminal
5 de l' enceinte et un haut-parleur (3, 4) agencé pour restituer le signal sonore amplifié, dispositif d' amplification caractérisé en ce qu' il comprend également un panneau (1) photovoltaïque agencé pour fournir une énergie électrique aux dispositifs électriques, et un filtre actif (8) agencé en amont de l' amplificateur pour ajuster un volume acoustique de enceinte à la fréquence de résonance du haut-parleur.. 5 of the enclosure and a loudspeaker (3, 4) arranged to reproduce the amplified sound signal, amplification device characterized in that it also comprises a photovoltaic panel (1) arranged to supply electrical energy to the electrical devices. , and an active filter (8) arranged upstream of the amplifier for adjusting an acoustic loudspeaker volume at the resonant frequency of the loudspeaker.
2. Dispositif d'amplification selon la revendication 1 dans lequel le panneau photovoltaïque forme une partie au 10 moins d' une face supérieure (2.1) de l' enceinte acoustique.  2. Amplification device according to claim 1 wherein the photovoltaic panel forms a portion of at least one upper face (2.1) of the acoustic enclosure.
3. Dispositif d' amplification selon l' une des revendications précédentes comprenant un accumulateur (6) d' énergie, par exemple un accumulateur à courant continu, accumulateur agencé pour recevoir une énergie électrique du panneau photovoltaïque et alimenter les dispositifs électriques.  3. Amplification device according to one of the preceding claims comprising an energy accumulator (6), for example a DC accumulator, accumulator arranged to receive electrical energy from the photovoltaic panel and power the electrical devices.
4. Dispositif d' amplification selon la revendication précédente dans lequel l' accumulateur est fixé sur une 15 paroi inférieure (2.2) de l' enceinte, à l' intérieur de l ' enceinte.  4. Amplification device according to the preceding claim wherein the accumulator is fixed on a lower wall (2.2) of the enclosure, inside the enclosure.
5. Dispositif d' amplification selon la revendication précédente dans lequel l' enceinte comprend une trappe (2.10) donnant accès à l' accumulateur. 5. Amplification device according to the preceding claim wherein the enclosure comprises a hatch (2.10) giving access to the accumulator.
6. Dispositif d' amplification selon l' une des revendications précédentes comprenant également un dispositif de gestion de charge (7), agencé pour gérer une charge de l' accumulateur en fonction d' une énergie électrique 6. Amplification device according to one of the preceding claims also comprising a charge management device (7), arranged to manage a charge of the battery according to an electrical energy
20 fournie par le panneau et d' une énergie électrique consommée par les dispositifs électriques à l' intérieur de l' enceinte. 20 provided by the panel and an electrical energy consumed by the electrical devices inside the enclosure.
7. Dispositif d' amplification selon l ' une des revendications précédentes dans lequel l 'amplificateur est de classe D.  7. Amplification device according to one of the preceding claims wherein the amplifier is class D.
8. Dispositif d' amplification selon l' une des revendications précédentes comprenant également un pré- 25 amplificateur (5) agencé pour recevoir le signal sonore à amplifier et fournir à l' amplificateur un signal ajusté en fonction de paramètres utilisateur, notamment les graves (5.7), les médiums (5.8), les aigus (5.9) et le volume général (5.10) du signal sonore restitué.  8. amplification device according to one of the preceding claims also comprising a preamplifier (5) arranged to receive the sound signal to be amplified and provide the amplifier a signal adjusted according to user parameters, including the bass ( 5.7), the midrange (5.8), the treble (5.9) and the overall volume (5.10) of the audible signal.
9. Dispositif d' amplification selon la revendication précédente comprenant également une pluralité de potentiomètres (5.7, 5.8, 5.9, 5.10) agencés pour le réglage des paramètres par l' utilisateur.  9. Amplification device according to the preceding claim also comprising a plurality of potentiometers (5.7, 5.8, 5.9, 5.10) arranged for setting parameters by the user.
30 10. Dispositif d'amplification selon l' une des revendications précédentes comprenant une pluralité de bornes d' entrée agencées pour recevoir un signal à amplifier, notamment une borne pour instrument de musique (5.1, 5.2), une borne pour microphone (5.3, 5.4), une borne pour entrée ligne (5.5, 5.6), chaque borne comprenant une prise (5.1, 5.3 e† 5.5) pour connecter, selon le cas, un instrument de musique ou un microphone ou une entrée ligne, et un potentiomètre (5.2, 5.4 et 5.6) de rég\age d' un niveau d' entrée associé. 10. Amplification device according to one of the preceding claims, comprising a plurality of input terminals arranged to receive a signal to be amplified, in particular a terminal for a musical instrument (5.1, 5.2), a microphone terminal (5.3, 5.4), a line input terminal (5.5, 5.6), each terminal comprising a socket (5.1, 5.3 e † 5.5) for connecting, as appropriate, a musical instrument or a microphone or line input, and a potentiometer (5.2, 5.4 and 5.6) for regulating an associated input level .
11. Dispositif selon l' une des revendications précédentes dans lequel enceinte comprend au moins une poignée de préhension (2.7, 2.8), par exemple intégrée dans un flanc latéral de l' enceinte.  11. Device according to one of the preceding claims wherein the enclosure comprises at least one gripping handle (2.7, 2.8), for example integrated in a sidewall of the enclosure.
12. Dispositif selon l' une des revendications précédentes dans lequel enceinte comprend au moins un évent de décompression. 12. Device according to one of the preceding claims wherein the enclosure comprises at least one decompression vent.
PCT/FR2015/051601 2014-06-18 2015-06-17 Autonomous amplification device for a musical instrument WO2015193614A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR14/01439 2014-06-18
FR1401439A FR3022726A1 (en) 2014-06-18 2014-06-18 AUTONOMOUS AMPLIFICATION DEVICE FOR MUSICAL INSTRUMENT

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US10671170B2 (en) * 2016-07-22 2020-06-02 Harman International Industries, Inc. Haptic driving guidance system

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