EP1236375B1 - Flachlautsprecheranordnung für tieftonwiedergabe - Google Patents
Flachlautsprecheranordnung für tieftonwiedergabe Download PDFInfo
- Publication number
- EP1236375B1 EP1236375B1 EP00979559A EP00979559A EP1236375B1 EP 1236375 B1 EP1236375 B1 EP 1236375B1 EP 00979559 A EP00979559 A EP 00979559A EP 00979559 A EP00979559 A EP 00979559A EP 1236375 B1 EP1236375 B1 EP 1236375B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- loudspeaker arrangement
- flat
- diaphragm
- plate
- 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
Links
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Images
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
- H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
-
- 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
- H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
-
- 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
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm 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
- H04R1/2861—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn
- H04R1/2865—Enclosures comprising vibrating or resonating arrangements using a back-loaded horn 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
- H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
- H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound
Definitions
- the invention relates to a flat speaker arrangement for bass reproduction with a front opening having flat, non-radiating, one housing volume enclosing housing, one inside the front opening of the Housing arranged plate membrane and a between housing and plate membrane arranged clamping membrane for holding and sealing the plate membrane with respect to the housing, wherein the plate membrane is cantilevered and muted and at least one sound transducer for low notes on the plate membrane attached is such that the Schallwandlermembran forms a part of a wall of the housing.
- Such flat speaker arrangements are, for example from WO 99/35883 A or WO 97/09842 A known. About that In addition, there are further developments and alternatives to these Flat speaker arrangements in US 2 713 396 A, the WO 99/52324 A, EP 0 334 217 A, US Pat. No. 4,514,599 A and US Pat WO 99/02012 A described.
- the most up-to-date panel loudspeaker principle the multi-resonant panel loudspeaker (English: Distributed Mode Loudspeaker, DML), provides high quality playback very small depth ("Tönendes picture on the wall”) and relative low production cost. It is about light, self-supporting, framed, slightly damped homogeneous Foam boards or lightweight sandwich panels whose Cover layers have large expansion shaft speeds.
- DML Distributed Mode Loudspeaker
- the object of the invention is therefore, a flat speaker arrangement to be provided without being placed separately electro-acoustic units provide improved low-frequency reproduction offers in spatial compactness.
- the flat speaker assembly is the flat housings also used in the generation of sound as well as used to shield the plate membrane. So serves For example, the case is not just a back cover the plate membrane (prevention of the "dipole effect"), but when using a woofer assembly for example, as a pressure chamber for the woofer assembly. In contrast, when using an inertial vibrator additionally serve as a resonator.
- the plate membrane has a breakthrough, in the hermetically sealed and vibration isolated a woofer speaker assembly is introduced such that its Membrane (s) on one side, each with the housing volume and on the other side with the outside air in connection is / are.
- the Plate membrane closes backwards and on the plate membrane is tuned so that the so-called "wall effect” is virtually eliminated.
- the inventive Arrangement can also be used such that additional inventive transducer for support and improvement of an existing panel loudspeaker serves.
- a wall of the housing is completely formed by the plate membrane.
- the plate membrane a plate-shaped lightweight shear-resistant core, the to both flat pages, each with a very hard, thin cover sheet is fully connected.
- the sandwich core consists, for example, of fiber-reinforced, resin-impregnated Paper (such as Nomex paper) with honeycomb structure or a rigid foam structure (such as polymide) and is on the front and back each with a hard as possible, thin sandwich cover sheet (preferably one with carbon or Glass fiber reinforced epoxy resin film, one of light metal Alloy-made foil, thin glass or special paper) glued or welded.
- the plate membrane can just or be slightly curved.
- the plate membrane can only be provided for low-frequency reproduction or for playback medium and high notes are used. Can do this for example, medium and / or high-tone bending waves Drivers in the frequency domain mainly above the fundamental frequency the plate diaphragm mechanically coupled with this be.
- the plate membrane for example, by a suitable Storage (eg a circumferential, tight tension membrane, all or part of the plate membrane on one side or can move on both sides) on the housing with or without assistance a rigid frame.
- the plate membrane is in this case by means of the tensioning membrane on a bending resistant Fixed frame, which in turn attached to the housing is.
- the housing is through a hermetically sealed partition located in its interior in two each a partial volume enclosing chambers divided and the partition wall has a breakthrough on, in the hermetically sealed a woofer speaker assembly with one or more woofer cone speakers is introduced such that its membrane (s) to both Pages with one of the sub-volume in connection is / are.
- the housing a breakthrough, in the hermetically sealed one Low-pitched loudspeaker arrangement is introduced such that its membrane (s) on one side, each with the housing volume and on the other side with the outside air in connection is / are.
- one of the housing volume to the outside air leading duct for example Transmission Line
- a diaphragm of the woofer speaker assembly one Funnels for the bass cone speaker (s), a horn loudspeaker is coupled, wherein length and cross-sectional shape of the duct adapted to the respective conditions are.
- one or more low-frequency inertial oscillators are provided be attached to the plate membrane and with this is acoustically coupled / are.
- Both with cone speakers as well as with Inertialschwingern can assist in ventilating the housing one from the housing volume leading to the outside air Bassreflextubus and / or a duct leading from the housing volume to the outside air (eg Transmission Line) is provided.
- the bass reflex tube is used in particular, by (Helmholtz) resonance the efficiency the flat speaker arrangement to improve in low tones.
- For enclosures with two chambers can accordingly one or both chambers are ventilated.
- the housing has a the plate membrane opposite breakthrough, which is preferred has the size of a wall.
- the case becomes for example, by hermetically sealed, deep Surround the frame, then a rear open flat housing forms.
- the membrane (s) of the woofer speaker assembly Preferably has / have the membrane (s) of the woofer speaker assembly non-radiating over a surface Contact to the housing volume and the plate membrane has at least a window through which outwards (preferably to the listener side out) is ventilated.
- the membrane (s) have / have the woofer speaker assembly having a surface non-radiative contact with the housing volume and the plate membrane has at least one window, through which sound in another housing (or other chamber of a housing with two chambers) is ventilated.
- This can be the woofer speaker system back at least partially the / the windows protrude and it can be a collar for fürbruchrandversteifung and non-radiative sealing at the Be attached plate diaphragm.
- the Spring element tensile, bending moment transmitting, low friction and under tension standing connected with plate diaphragm and housing.
- the Spring element can be made of spring steel, brass, aluminum or plastic.
- plate membrane and housing by means of a circumferential foam bead be connected with low friction.
- the soft foam bead then acts as a low-friction articulated bearing, the Can absorb tensile stress.
- the woofer speaker assembly or the Inertialschwingers can in case of sufficiently large housing volume used a conventional speaker power amplifier and in the case of a small housing volume a negative one Impedance or a negative impedance converter, the electrical impedance of the speaker assembly or the inertial transducer fully or partially compensated.
- a plate membrane 1 a longer and has a shorter diameter in the disk plane ("Long direction", “transverse direction") that they are in a frame 2 is held by a hermetically sealed clamping membrane 3 and that the frame 2, the side wall of a (flat) box (housing) forms.
- the (flat) box can, depending on the embodiment divided by an internal partition 4 into two chambers be, with only one chamber (main chamber) on one side of the Plate membrane 1 is limited.
- a separate low-frequency drive provided in the low frequency range the plate membrane activated by "pumping motion”. This can electropneumatically act as a "pump speaker” or directly as a "pump driver”.
- the embodiments thus relate to a broadband Multi-resonant plate speaker, which has a multi-resonant sound plate with optional resonance chambers and at least one deep-toned electromechanical transducer (for example "Pumplaut Maschinener", “Shaker” etc.) and a resonance chamber, whose wall is formed by the sound plate, having.
- This chamber should be independent of the total number hereinafter referred to as "main chamber”.
- the diaphragm of the sound transducer for low tones thus provides a Part of the wall of the main chamber.
- the one of the main chamber outwardly facing, the other side of the Schallwandlermembran may be part of another chamber ("Nebenbib").
- the shaker one or more is positioned differently than the mid-high driver: Either near the center to emphasize the Bar mode or in bar node areas for non-resonant Promotion of piston movement.
- the cone pump generates low-pitched air pressure fluctuations in the main chamber. there finds a force transformation in the ratio of the areas of Plate diaphragm and pump diaphragm instead. As a side effect is while the possibility of sound radiation of the back (Main chamber outer shell) of the pump diaphragm ( "Pump radiation”).
- the embodiment illustrating the basic concept of the invention of Figure 1 includes, inter alia, a sound plate 6, which consists of a plate membrane 1 (sandwich panel) and mid-high drivers 5 exists and with a closed, flat box 1, 2, 4, 9 is combined so that they Front level wall of this box represents 1, 2, 4, 9.
- the on the sound plate 6 adjacent main chamber 7 of the box 1, 2, 4, 9 acts as a low-frequency power transformer by using the Small membrane area of a woofer speaker assembly 8 generated pressure fluctuations with the elastic plate membrane 1 react.
- the woofer speaker assembly 8 is made for example, from three woof cone speakers, of which one on the plate membrane 1, one on the frame 2 and a is attached to the intermediate wall 4 of the box 1, 2, 4, 9 such that the membranes of the woofer loudspeaker arrangement 8 Parts of the walls form.
- the plate membrane 1 is through a Clamping membrane 3 attached to the frame 2 and is through this kept elastic.
- To attach the box 1, 2, 4, 9 to a room wall can - As in the embodiment - a side wall 9 between Room wall and back of the box 1, 2, 4, 9 provided be, by side wall 9, partition 4 of the box 1, 2, 4, 9 and room wall comprising a certain volume of air Secondary chamber 10 of the box 1, 2, 4, 9 is defined.
- the low-frequency acoustic short circuit (“dipole effect") is by the shielding effect of the box 1, 2, 4, 9 largely lowered and the bass effect of the flat speaker is increased by the pumping action.
- the so realized Multiresonanzklangplatte as the main reflector offers an extensive broadband from the bass to the treble range.
- FIG 2 The embodiment of Figure 2 is compared to that in FIG 1 modified to the effect that instead of the Woofer speaker assembly 8 a woofer speaker assembly 11 is provided, which five woofer cone speakers includes.
- Two of the bass cone speakers are included in breakthroughs of the plate membrane 1, two in breakthroughs the intermediate wall 4 and one in a breakthrough of the frame 2 introduced and secured accordingly.
- woofer cone speakers is one inside and one outside directed.
- the in the frame 2 accommodated woofer cone speaker is directed to the outside.
- frame 2 and side wall 9 have ventilation device 12 on.
- FIGS. 3 to 6 show preferred embodiments of airtight, elastic supports of the plate membrane 1 as Front wall of the box 1, 2, 4, 9.
- the airtight resilient Sealing by a circumferential soft foam seal 13 inserted in a frame groove 14 is.
- a thin pinhole 15 acoustically transparent, perforated hard foil of metal or plastic
- the Airtight spring-tight seal due to a circumferential tensioning foil 16 obtained at a circumferential flange 17 of the box 1, 2, 4, 9 is attached (e.g., glued).
- the pinhole 15 are provided.
- a special feature is the frictionless vibration gap 18, by the one hand the edge of the plate membrane 1 only by a barely visible, narrow gap 19 is separated from the flange 17 and on the other hand, but a sufficient width 20 of the resilient Stretching film 16 granted, so that the edge vibration not hindered.
- Another special feature is that at this embodiment, the front surfaces of plate membrane. 1 and flange 17 can be adjusted in a plane, so that here the pinhole 15 with associated distance profile 21 also could be omitted.
- FIG. 5 shows a greatly simplified, cost-effective embodiment.
- the airtight resilient seal is replaced by a circumferential tensioning film 22 is achieved, which at a circumferential Flange 23 of the box 1, 2, 4, 9 attached (e.g., glued).
- the stretch film 22 is simplified lying flat on the profiled flange 23 glued.
- FIG. 6 shows a strongly embossed, circumferential one Clamping membrane 24 made of a material with elastic dimensional stability such as films of aluminum, polyimide or Fiber composite, on a flange 25 of the frame 2 on the one hand and the plate membrane 1 on the other hand, for example is attached by gluing or welding.
- a strongly embossed, circumferential one Clamping membrane 24 made of a material with elastic dimensional stability such as films of aluminum, polyimide or Fiber composite
- the plate membrane 1 in turn held by a circumferential, dense Tensioning membrane 3 as the outer wall of a flat, hermetic dense box 1, 2, 29.
- the passive speaker cabinet is an active woofer speaker layout with only one woofer cone speaker 26 used, whose membrane on one side with the outside air communicates and on the other side with the Chamber volume 27, wherein in various embodiments the cone speaker 26 either in the large-scale rear wall 29 ( Figure 7) or in the side wall forming frame 2 ( Figure 8) may be used.
- FIG. 9 The embodiment shown in FIG. 9 is opposite to FIG Embodiment of Figure 7 further developed such that in a hermetically sealed breakthrough of the passive box housing an active woofer speaker assembly with woofer cone speakers 26 is inserted, the membrane on the one side with the chamber volume 27 and on the other side communicating via a duct with the outside air, wherein Konuslaut Kirer 26 and Duct 28 together a horn speaker form.
- the duct is done by plane-parallel Walls (intermediate wall 4 and rear wall 29) and Duktrich kitn 30 realized.
- the connection of duct 28 and membrane of the Tie tone cone speaker 26 is thereby through openings 32nd manufactured in the speaker chassis.
- With small chamber volume can - as shown in the embodiment - the partition 4 in the mid-high frequency driver 5 a taper 33 have.
- the intermediate wall 34 is the active woofer speaker assembly used with woofer cone speaker 26 whose Membrane on both sides, each with one of the two chamber volumes communicates.
- the main chamber 35 is over a bass reflex tube 37 ventilated to the outside.
- FIGS 11 and 12 show a hermetically sealed, vibration-isolated breakthrough in the disk membrane 1, in which an active woofer speaker assembly with a woofer cone speaker 26 ( Figure 11) or more woofer cone speakers 39, 40 ( Figure 12), whose membrane or their membranes on one side with the outside air and on the other communicates with the chamber volume the chamber ventilates outward via a bass reflex tube 37 becomes.
- an active woofer speaker assembly with a woofer cone speaker 26 ( Figure 11) or more woofer cone speakers 39, 40 ( Figure 12) whose membrane or their membranes on one side with the outside air and on the other communicates with the chamber volume the chamber ventilates outward via a bass reflex tube 37 becomes.
- Figure 12 is about
- another Buggreflextubus 38 provided and the Mid-high drivers 5 of FIG. 11 are single Mid and high drivers 41, 42, 43 have been replaced, the also in hermetically sealed breakthroughs of the plate membrane 1 are housed.
- FIGS. 13 and 14 are opposite the modified in Figures 8 and 7 to the effect that in each case a bass reflex tube 37 of a certain length 46 a breakthrough of the frame 2 protrudes into the chamber volume.
- the Embodiment according to FIG. 15 is shown in FIG. 5, wherein in Figure 15, the duct 28 is a transmission line forms and the chamber 27 ventilated by a Büreflextubus 37 becomes.
- the bass reflex tube 37 instead of the Main chamber 35 alternatively ventilate the auxiliary chamber 36.
- a hermetic dense, vibration-isolated breakthrough of the plate membrane 1 is a low frequency cone speaker active bass speaker system 26 used, the membrane on the one Side with the outside air and on the other with the chamber volume is in communication with the box 1, 2, 4, 50 in turn via a duct 47 forming a transmission line the outside air is in communication.
- the coupling of the duct 47 to the chamber volume takes place via an opening 48, wherein the duct 47 via a further opening 49 to the outside air Contact has and through frame 2 and partition 4 of box 1, 2, 4, 50 and a rear wall 50 is formed.
- FIG. 18 shows an arrangement in which starting from the arrangement of Figure 8, a duct 47 is coupled.
- the coupling of the duct 47 to the chamber volume takes place again via an opening 48, wherein the duct 47 via a another opening 49 to the outside air has contact and through Frame 2 and partition 4 of the box 1, 2, 4, 50 and a another rear wall 50 is formed.
- the embodiment of Figure 19 is based on a closed passive box 1, 2, 4, 50 in a hermetic dense breakthrough of the intermediate wall 4 of the box 1, 2, 4, 50 a active woofer speaker assembly with woofer cone speaker 26 used, the membrane on one side with the chamber volume and on the other over a duct 51 communicates with the outside air, with woofer cone speakers 26 and Duct 51 together a horn speaker form and the box 1, 2, 4, 50 in addition over a a transmission line forming another duct 53 with the outside air communicates.
- the ducts 51 and 53 will be there through frame 2 and intermediate wall 4 of the box 1, 2, 4, 50, a further rear wall 50 and a duct wall 52 formed.
- Figs. 21 and 22 two basic forms are more closed Boxes 1, 2, 34, 29, wherein the one ( Figure 22) only one chamber 27 and the other ( Figure 21) two through an intermediate wall 34 hermetically sealed, from each other having separate chambers 35, 36.
- the woofer cone speaker 26 is in a Breakthrough of the intermediate wall 34 housed and stands over one side of its membrane with both chamber volumes in Contact.
- the woofer cone speaker 26 in a breakthrough of the plate membrane 1 used.
- FIG. 23 A basic form of a hermetically sealed, closed Box 1, 2, 29 with a low-frequency shaker 58 (low-frequency inertial vibrator) as a sound transducer for low tones is in Figure 23 shown.
- the bass shaker 58 is on the plate membrane 1 fixed from the inside and in such a way that he as may affect a deep-toned auxiliary drive of the plate membrane 1, i.e. in the central area to support the beam modal resonance or positioned in a node zone of the first bar mode is.
- FIG. 23 A further development of the arrangement according to FIG. 23 is shown in FIG 24 in that in the frame 2 a bass reflex tube 37th for ventilation of the box 1, 2, 29 is introduced.
- Figure 25 at the intermediate wall 4 of the box 1, 2, 29 a Transmission line forming duct 59 via an opening 60 at the chamber volume coupled, the duct 59 through the Frame 2 and a rear wall 61 in connection with the intermediate wall 4 is realized.
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
Description
- Figur 1
- eine erste Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit drei Tiefton-Konuslautsprechern in einer geschlossenen Box;
- Figur 2
- eine zweite Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit fünf Tiefton-Konuslautsprechern in einer geschlossenen Box;
- Figur 3
- eine erste Ausführungsform einer Lagerung für eine Plattenmembran;
- Figur 4
- eine zweite Ausführungsform einer Lagerung für eine Plattenmembran;
- Figur 5
- eine dritte Ausführungsform einer Lagerung für eine Plattenmembran;
- Figur 6
- eine vierte Ausführungsform einer Lagerung für eine Plattenmembran;
- Figur 7
- eine dritte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem rückwärtig angeordneten Tiefton-Konuslautsprecher in einer geschlossenen Box;
- Figur 8
- eine vierte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem seitlich angeordneten Tiefton-Konuslautsprecher in einer geschlossenen Box;
- Figur 9
- eine fünfte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem rückwärtig angeordneten Tiefton-Konuslautsprecher in einer geschlossenen Box mit zusätzlichem Horn;
- Figur 10
- eine sechste Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer zwei Kammern aufweisenden Box mit Baßreflextubus;
- Figur 11
- eine siebte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer Box mit Baßreflextubus;
- Figur 12
- eine achte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit mehreren Tiefton-Konuslautsprechern in einer Box mit doppeltem Baßreflextubus;
- Figur 13
- eine neunte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem seitlich angeordneten Tiefton-Konuslautsprecher in einer Box mit Baßreflextubus;
- Figur 14
- eine zehnte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem rückwärtig angeordneten Tiefton-Konuslautsprecher in einer Box mit Baßreflextubus;
- Figur 15
- eine elfte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem rückwärtig angeordneten Tiefton-Konuslautsprecher in einer Box mit Baßreflextubus und Dukt;
- Figur 16
- eine zwölfte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer zwei Kammern aufweisenden Box mit Baßreflextubus;
- Figur 17
- eine dreizehnte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer Box mit einem Dukt;
- Figur 18
- eine vierzehnte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer Box mit einem Dukt;
- Figur 19
- eine fünfzehnte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer Box mit Baßreflextubus und Dukt;
- Figur 20
- eine sechzehnte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer Box mit einem Dukt;
- Figur 21
- eine siebzehnte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer zwei Kammern aufweisenden Box;
- Figur 22
- eine achtzehnte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Konuslautsprecher in einer zwei Kammern aufweisenden Box mit Baßreflextubus;
- Figur 23
- eine neunzehnte Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Inertialschwinger in einer geschlossenen Box;
- Figur 24
- eine zwanzigste Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Inertialschwinger in einer geschlossenen Box mit Baßreflextubus;
- Figur 25
- eine einundzwanzigste Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Inertialschwinger in einer geschlossenen Box mit Dukt;
- Figur 26
- eine zweiundzwanzigste Ausführungsform einer erfindungsgemäßen Flachlautsprecheranordnung mit einem Tiefton-Inertialschwinger in einer rückseitig offenen Box;
Claims (18)
- Flachlautsprecheranordnung für Tieftonwiedergabe mit einem eine Frontöffnung aufweisenden, flachen, nichtabstrahlenden, ein Gehäusevolumen umschließenden Gehäuse (2, 4, 29, 50, 61), einer innerhalb der Frontöffnung des Gehäuses (2, 4, 29, 50, 61) angeordneten Plattenmembran (1) und einer zwischen Gehäuse (2, 4, 29, 50, 61) und Plattenmembran (1) angeordneten Lagerung (3) zum Halten und Abdichten der Plattenmembran (1) gegenüber dem Gehäuse (2, 4, 29, 50, 61), wobei die Plattenmembran (1) freitragend aufgebaut und gedämpft ist und mindestens ein Schallwandler (8, 26, 11, 39, 40) für tiefe Töne an der Plattenmembran (1) angebracht ist, dadurch gekennzeichnet, dass die Plattenmembran (1) einen Durchbruch aufweist, in den hermetisch dicht und schwingungsisoliert eine Tiefton-Lautsprecheranordnung (8, 11, 26, 39, 40) eingebracht ist derart, dass dessen Membran(en) auf einer Seite mit jeweils dem Gehäusevolumen und auf der anderen Seite mit der Außenluft in Verbindung steht/stehen.
- Flachlautsprecheranordnung nach Anspruch 1, dadurch gekennzeichnet, dass der mindestens eine Schallwandler (8, 26, 11, 39, 40) für tiefe Töne auch an dem Gehäuse (2, 4, 29, 50, 61) angebracht ist.
- Flachlautsprecheranordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Plattenmembran (1) einen plattenförmigen leichten schubsteifen Kern aufweist, der zu beiden flächigen Seiten mit jeweils einem sehr harten, dünnen Deckblatt vollflächig verbunden ist.
- Flachlautsprecheranordnung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Gehäuse (2, 4, 29, 50, 61) durch eine in seinem Inneren befindliche hermetisch dichte Zwischenwand (34, 54) in zwei jeweils ein Teilvolumen umschließende Kammern (35, 36, 55, 56) unterteilt ist und dass die Zwischenwand einen Durchbruch aufweist, in den hermetisch dicht eine Tiefton-Lautsprecheranordnung (26) eingebracht ist derart, dass dessen Membran(en) zu beiden Seiten mit jeweils einem der Teilvolumen in Verbindung steht/stehen.
- Flachlautsprecheranordnung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Gehäuse (2, 4, 29, 50, 61) einen Durchbruch aufweist, in den hermetisch dicht eine Tiefton-Lautsprecheranordnung (8, 11, 26) eingebracht ist derart, dass dessen Membran(en) auf einer Seite mit jeweils dem Gehäusevolumen und auf der anderen Seite mit der Außenluft in Verbindung steht/stehen.
- Flachlautsprecheranordnung nach Anspruch 5, dadurch gekennzeichnet, dass ein vom Gehäusevolumen zur Außenluft führender Dukt (28, 47, 51, 57) mit einer Membran der Tiefton-Lautsprecheranordnung (26) gekoppelt ist.
- Flachlautsprecheranordnung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass ein Tiefton-Inertialschwinger (58) an der Plattenmembran (1) befestigt.
- Flachlautsprecheranordnung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass ein vom Gehäusevolumen zur Außenluft führender Bassreflextubus (37, 38) vorgesehen ist.
- Flachlautsprecheranordnung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass ein vom Gehäusevolumen zur Außenluft führender Dukt (28, 47, 51, 53, 57, 59) vorgesehen ist.
- Flachlautsprecheranordnung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (2, 4, 29, 50, 61) einen der Plattenmembran (1) gegenüberliegenden Durchbruch aufweist.
- Flachlautsprecheranordnung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass Tiefton-Lautsprecheranordnung (8, 11, 26, 39, 40) und Plattenmembran (1) derart aufeinander abgestimmt sind, dass die Tieftonanregung der Plattenmembran (1) unterhalb der Grundfrequenz der Plattenmembran (1) erfolgt.
- Flachlautsprecheranordnung nach Anspruch 11, dadurch gekennzeichnet, dass die Membran (en) der Tiefton-Lautsprecheranordnung (8, 11, 26, 39, 40) mit einer Oberfläche nichtstrahlenden Kontakt zum Gehäusevolumen hat/haben und dass die Plattenmembran (1) mindestens ein Fenster aufweist, durch das nach außen ventiliert wird.
- Flachlautsprecheranordnung nach Anspruch 11, dadurch gekennzeichnet, dass die Membran(en) der Tiefton-Lautsprecheranordnung (8, 11, 26, 39, 40) mit einer Oberfläche nichtstrahlenden Kontakt zum Gehäusevolumen hat/haben und dass das Gehäuse (2, 4, 29, 50, 61) mindestens ein Fenster aufweist, durch das in ein weiteres Gehäuse ventiliert wird.
- Flachlautsprecheranordnung nach Anspruch 13, dadurch gekennzeichnet, dass die Tiefton-Lautsprecheranordnung rückseitig zumindest teilweise durch das/die Fenster ragt und dass eine Manschette zur Durchbruchrandversteifung und nichtstrahlenden Abdichtung an der Plattenmembran befestigt ist.
- Flachlautsprecheranordnung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass ein Federelement (24) zugfest und biegemomentübertragend mit Plattenmembran (1) und Gehäuse (2, 4, 29, 50, 61) reibungsarm und unter Zugspannung stehend verbunden ist.
- Flachlautsprecheranordnung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass Plattenmembran (1) und Gehäuse (2, 4, 29, 50, 61) mittels einer umlaufenden Schaumstoffwulst (13) reibungsarm verbunden sind.
- Flachlautsprecheranordnung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Plattenmembran (1) mittels der Spannmembran (3) an einem biegesteifen Rahmen (2) befestigt ist, der seinerseits an dem Gehäuse (4) befestigt ist.
- Flachlautsprecheranordnung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass eine negative Impedanz oder ein Negativimpedanzkonverter zur Ansteuerung der Tiefton-Lautsprecheranordnung vorgesehen sind, die/der die elektrische Impedanz der Lautsprecheranordnung oder des Inertialschwingers ganz oder teilweise kompensiert.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19955867A DE19955867A1 (de) | 1999-11-22 | 1999-11-22 | Flachlautsprecheranordnung für Tieftonwiedergabe |
| DE19955867 | 1999-11-22 | ||
| PCT/EP2000/011259 WO2001039541A2 (de) | 1999-11-22 | 2000-11-14 | Flachlautsprecheranordnung für tieftonwiedergabe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1236375A2 EP1236375A2 (de) | 2002-09-04 |
| EP1236375B1 true EP1236375B1 (de) | 2005-01-19 |
Family
ID=7929725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00979559A Expired - Lifetime EP1236375B1 (de) | 1999-11-22 | 2000-11-14 | Flachlautsprecheranordnung für tieftonwiedergabe |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1236375B1 (de) |
| DE (2) | DE19955867A1 (de) |
| WO (1) | WO2001039541A2 (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2368484B (en) * | 2000-10-25 | 2004-06-16 | B & W Loudspeakers | Distributed mode panel type loudspeakers |
| US7002070B2 (en) | 2001-06-22 | 2006-02-21 | Shelley Katz | Electronic piano |
| DE10238325A1 (de) * | 2002-08-16 | 2004-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Lautsprecher |
| GB2392044B (en) * | 2002-08-17 | 2005-12-28 | K H Technology Corp | Loudspeaker unit and assembly |
| DE60303748T2 (de) * | 2002-08-17 | 2006-11-09 | Kh Technology Corp., Georgetown | Kombinierte Lautsprechereinheit |
| AU2008200358B2 (en) * | 2003-01-22 | 2009-12-03 | Shelley Katz | Electrical and electronic musical instruments |
| GB2422265B (en) * | 2003-01-22 | 2007-08-08 | Shelley Katz | Electrical and electronic musical instruments |
| AU2003202084A1 (en) * | 2003-01-22 | 2004-08-13 | Shelley Katz | Apparatus and method for producing sound |
| DE102004021546A1 (de) * | 2004-05-03 | 2005-12-08 | Avantgarde Acoustic Lautsprechersysteme Gmbh | Hornlautsprecher |
| KR100698256B1 (ko) * | 2004-07-16 | 2007-03-22 | 엘지전자 주식회사 | 디스플레이 윈도우를 이용한 스피커 장치 |
| GB0605824D0 (en) * | 2006-03-23 | 2006-05-03 | Frobisher Paul | Lighting & Sound Reproduction |
| WO2011067060A1 (de) | 2009-12-02 | 2011-06-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Flachlautsprecher |
| DE102012025313B3 (de) * | 2012-12-22 | 2014-02-20 | Audi Ag | Schallwandler zur Wandlung elektrischer Signale in Luftschall |
| KR102420554B1 (ko) | 2017-08-10 | 2022-07-14 | 삼성디스플레이 주식회사 | 표시 패널, 브라켓 및 이를 포함하는 표시 장치 |
| CN107979787B (zh) * | 2017-11-28 | 2020-01-21 | 东台鹏美电子实业有限公司 | 低音音箱 |
| CN110972034B (zh) * | 2019-11-11 | 2021-05-18 | 歌尔股份有限公司 | 一种振膜及发声装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2713396A (en) * | 1950-05-24 | 1955-07-19 | Ernest A Tavares | Novel, small, extended low frequency response, loudspeaker enclosure |
| EP0054945B1 (de) * | 1980-12-19 | 1985-10-30 | Nissan Motor Co., Ltd. | Lautsprecher für Automobil-Audiosystem |
| JP2751190B2 (ja) * | 1988-03-25 | 1998-05-18 | ヤマハ株式会社 | 音響再生帯域拡大装置およびその方法 |
| RO119048B1 (ro) * | 1995-09-02 | 2004-02-27 | Verityágroupáplc | Difuzor |
| UA51671C2 (uk) * | 1995-09-02 | 2002-12-16 | Нью Транзд'Юсез Лімітед | Акустичний пристрій |
| GB9806994D0 (en) * | 1998-04-02 | 1998-06-03 | New Transducers Ltd | Acoustic device |
| GB9714050D0 (en) * | 1997-07-03 | 1997-09-10 | New Transducers Ltd | Panel-form loudspeakers |
| WO1999035883A1 (en) * | 1998-01-07 | 1999-07-15 | Nct Group, Inc. | Thin loudspeaker |
-
1999
- 1999-11-22 DE DE19955867A patent/DE19955867A1/de not_active Ceased
-
2000
- 2000-11-14 EP EP00979559A patent/EP1236375B1/de not_active Expired - Lifetime
- 2000-11-14 DE DE50009306T patent/DE50009306D1/de not_active Expired - Lifetime
- 2000-11-14 WO PCT/EP2000/011259 patent/WO2001039541A2/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001039541A3 (de) | 2002-02-14 |
| WO2001039541A2 (de) | 2001-05-31 |
| DE50009306D1 (de) | 2005-02-24 |
| EP1236375A2 (de) | 2002-09-04 |
| DE19955867A1 (de) | 2001-06-21 |
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