EP2366254B1 - Loudspeaker unit - Google Patents

Description

The invention relates to a speaker unit, in particular a speaker unit for an outdoor area.

Numerous speaker units are known from the prior art. From the WO 2008/077535 A1 For example, a speaker unit with a serving as a sound body housing is known, being attached to the sound body vibration generator. The sound body is designed as a circumferentially closed, formed by panel sections, tubular element. The sound body is inserted into a base, wherein between the sound body and the base a rubber lip is provided to prevent unwanted light leakage.

From the DE 10 2006 056 394 A1 a lighting device is known, comprising an active and / or passive light source, a translucent component, which is arranged in the radiation region of the light source, and means for vibrational excitation of the translucent component. The means are, for example, a voice coil, the translucent component functioning as an associated loudspeaker diaphragm for a flat-panel loudspeaker. The voice coil is connected to the translucent component by gluing. To avoid possible shadowing by the voice coil is, according to the DE 10 2006 056 394 A1 a spacer proposed.

From the EP 1 122 974 B1 an illumination arrangement with a loudspeaker is known, wherein the loudspeaker is a flat loudspeaker with a sound-emitting element fixed in a holder, to which a transmitter is assigned, which converts audio signals supplied to it as electrical input signals into mechanical oscillations with which the sound-emitting element is transformed into transverse bending oscillations so that the sound is excited, the sound-emitting Element is also a component of the lighting arrangement, so that the flat speaker thus formed is integrated into the lighting arrangement.

From the DE 7018648 U is an outdoor speaker unit known, with a shield against weather influences on a speaker system by lamellar or louver-like elements arranged among themselves, by which precipitation is deflected outwards and downwards. However, such an exterior speaker unit is not splash-proof, especially when a splash does not impinge on the speaker unit from above.

Out DE 199 43 874 A1 A sound system based on a bending wave vibrator for a motor vehicle is known, wherein a functional element is arranged between an outer vehicle casing and an element forming the interface with the passenger compartment, and wherein the functional element or a part thereof functions as an acoustic oscillating surface.

Out DE 20 2004 018 797 U1 a bathtub is known, wherein the bath body is oscillatable and forms a speaker diaphragm for a magnet-mounted speaker.

Out DE 878 457 C is a protective cover for speakers known.

DE 39 33 044 A1 describes a garden lamp, which can be combined with facilities for musical entertainment.

DE 201 10 588 U1 describes a universal recording for built-in speakers.

Based on this prior art, a loudspeaker unit is to be created, which can also be used outdoors.

This object is achieved by a loudspeaker unit comprising at least one housing base body having an interior and at least one exciter system arranged in the interior Producing a mechanical pulse on a membrane, wherein the excitation system comprises at least one signal generator, wherein the wall of the housing base body acts as a membrane, the interior is sealed splash-proof, wherein the housing base is formed integrally with a continuous circumferential wall, and wherein a claw for attachment the signal generator is provided on the wall.

In the interior, at least one luminous body is arranged. The luminous element is, for example, a light bulb or an LED. The wall of the housing body is made of a translucent material, wherein the entire wall or parts of the wall can be colored in order to achieve certain effects. In advantageous embodiments, all components or a part of the components, which are arranged in the interior of the housing body, bright, especially colored white. As a result, a shadow is prevented or at least reduced. In one embodiment, a plurality of luminous bodies are provided, wherein the luminous bodies can be controlled individually or jointly, for example, to achieve a disco effect.

The at least one housing base is made of plastic and in particular in an injection molding process. As a result, a one-piece production is possible cost. In an advantageous embodiment, a translucent UV-resistant, non-impact resistant and / or weather-resistant plastic is used for the housing base body. Advantageous plastics are, for example, polypropylene (PP), acrylonitrile-butylene-styrene copolymer (ABS), acrylic ester-styrene-acrylonitrile (ASA) or styrene-acrylonitrile (SAN). In this case, PP has proved to be particularly advantageous due to a low harmonic distortion. In further embodiments, the plastic dyes or other additives are admixed. A housing material is also preferably chosen such that a low water absorption is ensured. As low water absorption in connection with the invention, a water absorption is called 5% weight gain.

"Splashproof" in the sense of the invention means that an entry of spray water is prevented in the interior. In the context of the invention, a water protection with a code number greater than or equal to 1 according to the IP protection classification is thus referred to as "splash-proof". In one embodiment, it is provided that the interior is hermetically sealed, in particular also provides protection against strong jet water and / or submersion. In other embodiments, the interior is not sealed watertight, so that leakage of condensation water from the interior is possible, but entry of spray water is prevented.

A geometry of the basic body is preferably chosen such that shoulders or projections, on which water can collect, are avoided, in particular in the area of connecting points.

An operation of the speaker unit is preferably possible by means of radio transmission. Alternatively or additionally, at least one operating element, such as a switch and / or a rotary control, is provided on an outer surface. In further embodiments, an automatic shutdown is provided, which causes a change to a standby mode after exceeding a predetermined time.

The excitation system and the membrane together form a bending wave transducer or area loudspeaker. The excitation system generates a mechanical impulse on the membrane, with waves propagating as a function of the impulse as a function of frequency from the point of excitation. The housing wall acts as a sonic resonance body. The sound output through the housing is possible without a perforation of the housing, as it is to be provided for example in a membrane speaker. The at least one exciter system has, in advantageous embodiments, at least one transmission range of approximately 20,000 Hz - approximately 200 Hz.

The closed housing base ensures splash protection. Next to it is a large uninterrupted area created, so that the housing base can be particularly advantageous as a vibration body for a bending wave loudspeaker (also referred to as surface speaker) can act.

In further advantageous embodiments, a plurality of excitation systems are provided, wherein preferably the excitation systems can be activated separately and / or deactivated. In one embodiment, for a high sound pressure in the bass range at least one excitation system as a woofer or subwoofer with a transmission range of about 200 Hz - 40 Hz is formed. In other advantageous embodiments, the subwoofer or woofer is not designed as a flat panel speaker. The woofer is preferably arranged so that it radiates downwards. In particular, in one embodiment, at least one subwoofer is arranged in a bottom region of the housing base body. The subwoofer can be switched separately or with the at least one exciter system in the transmission range of approx. 20,000 Hz - approx. 200 Hz.

An energy supply takes place in one embodiment of a network connection, preferably cable openings and / or connections are equipped with sleeves. In other embodiments, an accumulator is alternatively or additionally provided, which is preferably accommodated in an interior of the housing base body. In one embodiment, connecting elements for recharging the accumulator are provided on an outer surface. The accumulator is preferably coupled with suitable electronics for controlling a charging process and / or for deep discharge protection.

In a further embodiment, a surface of the housing base body is at least partially executed water repellent. This ensures that drops of water impinging on the surface. The surface preferably has self-cleaning properties utilizing the lotus effect. For this purpose, for example, a corresponding coating is provided.

The housing base body preferably has at least one access opening, which can be closed in a splash-water-tight manner by means of at least one cover element. Through the access opening, the exciter system and / or another component can be easily mounted in the interior. An interior of the housing base is in one embodiment as a storage or storage compartment for mobile media such as USB sticks or mp3 players available. For this purpose, a subdivision of the interior is preferably provided in order to avoid unwanted access to the exciter system. In an advantageous embodiment, the access opening is provided in a bottom region of the housing base body, so that the access opening is protected by the housing base itself from liquid impinging on top. Preferably, only one access opening is provided, so that a simple splash water seal is possible. In one embodiment of the invention, the cover for inserting the housing base body in the housing base body can be used, so that connection points between the cover and the housing base are protected by a housing wall of the housing body. In another embodiment, alternatively or additionally, the connection points between the housing base body and the cover element are covered by a cover element.

The housing base body and the cover are preferably braced together. As a result, a splash-tight connection is created by means of adhesion. Preferably, the tension is non-destructive solvable, so that access to the interior is possible. In other embodiments, the elements are glued together.

In one development of the invention, at least one storage compartment closed in a splash-proof manner by means of a cover element is provided on an outer surface of the housing base body. The storage compartment has in advantageous embodiments recordings for mechanical coupling and / or signal transmission for audio equipment and / or audio storage elements. As audio devices are doing any devices with Audio data, such as mp3 players, mobile phones, or the like called. In the context of the invention, an audio storage element is any storage element, for example a USB stick, a chip card, a DVD, a CD-ROM or the like. The receptacles are provided in an embodiment below a tool-free removable cover element, so that a simple access by a user is possible.

In a further embodiment, a plurality of housing base bodies are coupled together, in particular in the longitudinal direction. In one embodiment, it is provided that each housing base body is sealed splash-proof independently of the adjoining housing base body. In this case, a modular system is created from several basic bodies, which can be individually assembled to form a speaker unit. In other embodiments, a housing base body acts as a cover element for a subsequent housing base body. The housing base bodies are preferably coupled to one another by means of one or more connecting rods (s). Through the connecting rod, the elements to prevent splashing water can be clamped together. Sealing elements may be provided between the housing base bodies in order to decouple the housing base bodies from one another for sound transmission.

In a further embodiment, the signal transmitter is arranged on a carrier plate. The carrier plate allows easy mounting to the housing body. In one embodiment, a plurality of signal transmitters are arranged on a carrier plate. On the support plate also correction elements may be provided, by which a vibration behavior of the membrane can be influenced. Suitable signal generator and method for adjusting the vibration behavior of a corresponding vibration system are, for example, in DE 10 2007 003 165 A1 , the contents of which are hereby fully incorporated by reference. In an advantageous embodiment, the carrier plate comprises a sound-absorbing material, in particular a thermoplastic Elastomer (TPE) or another high density plastic. In one embodiment, the carrier plate is made of this material. In other embodiments, the carrier plate on a rear side, ie one of the direction of action of the signal transmitter side facing away from, an insulating layer.

In a further embodiment, the carrier plate with a housing wall of the housing body is non-positively, cohesively and / or positively connected. The carrier plate is glued, screwed, riveted, latched, jammed, fused and / or the like, for example, with the housing wall. Preferably, a holder for non-positive and / or positive reception of the carrier plate is provided on a housing wall. Such a recording allows a good, permanent connection. In particular, a failure of the connection due to temperature fluctuations and / or due to mechanical stress is prevented by a vibration behavior of the speaker unit.

In an advantageous embodiment, the receptacle is designed tapered, with a complementary, wedge-shaped support plate can be inserted into the receptacle. As a result, a secure, self-locking connection can be realized.

In a further embodiment, it is provided that the signal transmitter and / or the carrier plate is arranged flush with the wall. The peripheral wall can be used advantageously for the generation of sound, with a sound radiation over the entire circumference of 360 ° is achieved.

Preferably, the carrier plate is designed as a perforated plate. The design as a perforated plate, a damping behavior can be influenced. In addition, a weight of the support plate can be minimized.

The speaker unit comprises in one embodiment an accumulator (battery). The lighting and / or the exciter system preferably work in a low voltage area. The battery creates an autonomous unit. The battery is preferably provided replaceable on the speaker unit. Additionally or alternatively, in other embodiments, a power cable connection is provided.

In a further embodiment, the interior is divided by at least one partition in at least two chambers. The partitions are designed opaque in one embodiment, so that an optical separation of the chambers is achieved. In other embodiments, the partitions are translucent, but the chambers are acoustically separated. The partitions are colored white in advantageous embodiments.

Further advantages of the invention will become apparent from the subclaims and from the following description of embodiments of the invention, which are shown schematically in the drawings. For identical or similar components, the same reference numbers are used in the drawings. Features described or illustrated as part of one embodiment may also be used in another embodiment to obtain a further embodiment of the invention.

Fig. 1:

eine perspektivische Darstellung eines ersten Ausführungs-beispiels einer Lautsprechereinheit;

Fig. 2:

eine geschnittene Darstellung der Lautsprechereinheit gemäß Fig. 1;

Fig. 3a:

eine geschnittene Darstellung einer Gehäusewand einer Lautsprechereinheit gemäß Fig. 1 mit einem daran angebrachten Signalgeber;

Fig. 3b:

eine Variante der Signalgebereinheit gemäß Fig. 3a;

Fig. 3c:

die Signalgebereinheit gemäß Fig. 3b;

Fig. 4:

eine Trägerplatte für einen Signalgeber gemäß Fig. 3a;

Fig. 5:

eine perspektivischen Darstellung eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Lautsprechereinheit;

Fig. 6:

erfindungsgemäße Lautsprechereinheiten gemäß einem dritten Ausführungsbeispiel;

Fig. 7:

eine perspektivische Darstellung einer erfindungsgemäße Lautsprechereinheit gemäß einem vierten Ausführungsbeispiel;

Fig. 8:

eine perspektivische Darstellung einer erfindungsgemäßen Lautsprechereinheit gemäß einem fünften Ausführungsbeispiel;

Fig. 9:

eine perspektivische Darstellung einer erfindungsgemäßen Lautsprechereinheit gemäß einem sechsten Ausführungs-beispiel;

Fig.10:

eine perspektivische Darstellung einer erfindungsgemäßen Lautsprechereinheit gemäß einem siebten Ausführungsbeispiel;

Fig. 11:

eine perspektivische Darstellung einer erfindungsgemäßen Lautsprechereinheit gemäß einem achten Ausführungsbeispiel;

Fig. 12:

eine geschnittene Darstellung einer Gehäusewand gemäß Fig. 11 mit einem daran angeordneten Lautsprechersystem und

Fig. 13:

eine geschnittene Darstellung einer erfindungsgemäßen Lautsprechereinheit gemäß einem neunten Ausführungsbeispiel;

Fig. 14:

eine perspektivische Darstellung einer erfindungsgemäßen Lautsprechereinheit gemäß einem zehnten Ausführungsbeispiel;

Fig. 15:

eine perspektivische Darstellung der Lautsprechereinheit gemäß Fig. 14 ohne Gehäusegrundkörper;

Fig. 16:

eine perspektivische Darstellung einer Lautsprechereinheit ähnlich Fig. 15,

Fig. 17:

einen Erdspieß für eine Lautsprechereinheit gemäß Fig. 16 und

Fig. 18:

eine Detailansicht einer Anbindung eines Signalgebers an eine Wandung.

The drawings show schematically:

Fig. 1:

a perspective view of a first embodiment of a speaker unit;

Fig. 2:

a sectional view of the speaker unit according to Fig. 1 ;

Fig. 3a:

a sectional view of a housing wall of a speaker unit according to Fig. 1 with a signal generator attached thereto;

3b:

a variant of the signal generator unit according to Fig. 3a ;

3c:

the signal transmitter unit according to Fig. 3b ;

4:

a carrier plate for a signal generator according to Fig. 3a ;

Fig. 5:

a perspective view of a second embodiment of a speaker unit according to the invention;

Fig. 6:

loudspeaker units according to the invention according to a third embodiment;

Fig. 7:

a perspective view of a speaker unit according to the invention according to a fourth embodiment;

Fig. 8:

a perspective view of a speaker unit according to the invention according to a fifth embodiment;

Fig. 9:

a perspective view of a speaker unit according to the invention according to a sixth embodiment example;

Figure 10:

a perspective view of a speaker unit according to the invention according to a seventh embodiment;

Fig. 11:

a perspective view of a speaker unit according to the invention according to an eighth embodiment;

Fig. 12:

a sectional view of a housing wall according to Fig. 11 with a loudspeaker system arranged thereon and

Fig. 13:

a sectional view of a speaker unit according to the invention according to a ninth embodiment;

Fig. 14:

a perspective view of a speaker unit according to a tenth embodiment of the invention;

Fig. 15:

a perspective view of the speaker unit according to Fig. 14 without housing body;

Fig. 16:

a perspective view of a speaker unit similar Fig. 15 .

Fig. 17:

a ground spike for a speaker unit according to Fig. 16 and

Fig. 18:

a detailed view of a connection of a signal generator to a wall.

Fig. 1 schematically shows a first embodiment of a speaker unit according to the invention 1. The speaker unit 1 comprises two housing base 2, the interior of which is each sealed splash-proof. The housing base 2 are in the illustrated embodiment the same shape hollow body. In the Fig. 1 Housing body 2 shown are formed as truncated pyramids with a rectangular, in particular square base. However, any other base surfaces are conceivable, for example triangular, pentagonal, hexagonal, heptagonal or octagonal base surfaces.

The housing base bodies 2 are plastic bodies made of a translucent plastic, in particular a semicrystalline plastic, for example polycarbonate (PC), polymethyl methacrylate (PMMA), polyphenylene sulfide (PPS), polystyrene (PS), acrylonitrile-butylene-styrene copolymer (ABS), acrylic ester styrene Acrylonitrite (ASA) or styrene-acrylonitrile (SAN). The plastic is added in some embodiments, an addition by which a UV resistance is increased. The housing base 2 are made for example by injection molding. In this case, a housing body 2 is provided with an uninterrupted wall, i. a continuous, endless surface. According to the invention, this housing base body 2 is used as a sound resonance body or sound membrane for a flat-panel loudspeaker (also referred to as a bending wave transducer). Since the wall is uninterrupted, i. no connection surfaces or the like. has, a large radiating surface is generated, so that a good sound output is possible, which allows, for example, a 360 ° sound.

In the illustrated embodiment, the wall comprises four side surfaces 20. In each case at least one (sound) excitation system 3 is provided on each of the side surfaces 20. In Fig. 2 For example, areas of the side surface 20 on which an excitation system 3 is provided are colored. In reality, in certain embodiments, the exciter systems 3, or their position, are not recognizable from the outside on the loudspeaker unit 1. The illustrated arrangement of the exciter systems 3 is merely exemplary.

In the illustrated embodiment, the housing base 2 are connected to each other with their top surfaces 21. At the opposite base surfaces 22 are in Fig. 1 invisible cover provided. The cover of the upper housing base 2 is covered by a cover 4.

Fig. 2 schematically shows the speaker unit 1 according to Fig. 1 in a cut view. As in Fig. 2 can be seen, the housing base 2 are each formed as a truncated pyramids, which are connected to the top surfaces 21 together. As in the sectional view according to Fig. 2 can be seen, the housing base 2 are identical. The housing main body 2 are each made in one piece, comprising the wall with the side walls 20 and the top surface 21. The base surfaces 22 are open. At the open base surfaces 22, a cover 5 is provided in each case, wherein the two illustrated cover 5 are also identical in the illustrated embodiment. The cover elements 5 are inserted into the housing base body 2. Rubber elements 6 are provided between the housing base bodies 2, by means of which the two housing base bodies are acoustically decoupled from one another. A connection of the housing base 2 with each other and with the cover 5 in the illustrated embodiment by means of a connecting rod 7, which is arranged substantially centrally in the housing base 2 along its longitudinal axis. The housing base body 2 and the cover elements 5 each have sprues 23, 53, through which the rod 7 is guided. By the connecting rod 7, a simple connection of the housing base 2 with the cover 5 is possible. The housing base 2 and the cover 5 have mutually complementary connection areas I, II, which are designed such that penetration of spray water is prevented. In the illustrated embodiment, the housing base body 2 for this purpose on an inner, substantially circumferential support portion 24, on which the cover 5 are placed. In the connection areas I, II can in Fig. 1 not shown sealing elements may be provided, which improve a sealing effect. At a top of the speaker unit 1, a lid 4 is detachably mounted. In one area 40 below the lid 4 are preferably not shown connecting elements and / or connecting elements for connecting audio equipment and / or audio data storage units are provided. Such devices or storage units are for example an MP3 player, a mobile phone or even a USB stick on which audio data is stored. These devices or data carriers can be connected to the excitation systems 3, for example by means not shown connectors.

A sound is generated according to the invention by so-called flexural wave transducer, wherein the wall of the housing base body 2 is used as a sound resonant body. At inner sides of the side walls 20 signal transmitters 30 are provided for this purpose, which give off pulses directly or indirectly on the side walls 20 and thus stimulate the side walls 20 to vibrate. The vibrations generate audible sound waves. A control module 31 for the signal generator 30 is arranged on the lower cover 5 in the illustrated embodiment. The control module 31 is connected to the signal transmitters 30 via lines not shown. The control module 31 is further connected to a non-illustrated battery and / or a power cord, also not shown. Preferably, both autonomous operation of the loudspeaker unit 1 and operation via a mains connection are possible. The speaker units 1 can be further connected to a sound cable with any device generating audio signals. In addition, in one embodiment, a receiver for receiving radio signals and / or otherwise transmitted via radio audio signals is provided. The electronic control module 31 comprises, for example, a receiver, an equalizer, a filter and / or other elements for controlling the signal generators 30.

The exciter systems 3 can all be of identical construction. In other embodiments, a subdivision of the signal generator is provided, wherein a high-frequency, mid-range or low-frequency range is generated in each case by different signal generator. In other embodiments, all signal generators produce the same tone range.

The illustrated speaker unit 1 further serves as a lighting device, wherein for this purpose schematically illustrated lighting body 8 are provided in an interior of the housing base body 2. The lighting fixtures 8 can also be controlled by the control module 31. It is conceivable to control the lighting fixtures 8 in accordance with the generated sound so as to achieve an optical underpainting of an acoustic signal. The luminaire bodies 8 are, for example, LEDs or other luminous bodies. The filament 8 are wired in one embodiment such that a separate control is possible. An operation of the lighting 8 is preferably carried out in the low voltage range, so that a battery operation is possible over a longer period.

Elements for controlling the speaker unit 1, such as a volume control and / or an activation or deactivation of the luminous elements 8, are preferably also provided in the space 40 below the lid 4. The control can be done remotely.

In order to use the speaker unit 1 as a lighting device, the housing base 2 are made of a translucent material. In addition, to prevent a shadow through the signal generator units 3, these are preferably mounted by means of suitable support plates 32 on the side walls 20. To prevent a sound emission in the interior, are at the back the support plates 32, that is provided on the sides facing the interior, absorber elements 33.

Fig. 3a schematically shows a sectional side view of a side wall 20 with a signal generator 30 disposed thereon. The signal generator 30 is mounted on a support plate 32, wherein the support plate 32 is designed as a perforated plate so as to keep a shadow for the lighting device low as far as possible.

Fig. 4 schematically shows a plan view of a corresponding support plate 32 with through holes 320 and with a signal generator 30 disposed thereon, and associated connection lines 34th

To the side walls 20 according to Fig. 3a be used as vibration diaphragms for the bending wave conversion, the signal generator 30 must be firmly connected to the side walls 20. It is known to stick the signal generator 30 on membranes. By an adhesive layer, however, a certain attenuation of the sound signal is achieved. In the illustrated example, which does not fall within the scope of the claims, therefore, a clamping connection is provided. On the side walls 20 brackets 25 are provided for this purpose, through which the support plate 32 is receivable. In the illustrated embodiment, the brackets 25 are formed as U-rail brackets, which extend substantially parallel to a longitudinal direction of the housing base body 2. As a result, a conically tapering receptacle is created in which a wedge-shaped support plate 32 can be inserted. By such a holder is achieved that the signal generator 30 is always in direct abutment with a side wall 20. Due to the wedge shape, a system of the signal generator 30 on the side walls 20 is possible even with temperature differences. For a locking and / or a readjustment, an adjusting screw, not shown, is provided on an end face of the holder 25. About a, after mounting the wedge-shaped perforated plate 32, unscrewed, not shown flat material with a set screw, the seated in the flat screw is brought to voltage to the wedge-shaped support plate 32. Alternatively or additionally, the carrier plate 32 may be glued to the base body, wherein an adhesive layer is not possible provided in the region of a signal input. The carrier plate 32 is preferably made of a pulse-absorbing material, for example polypropylene (PP) alternatively or additionally, a damping material is provided on a rear side of the carrier plate 32, so that a signal output into the interior of the housing base 2 is largely prevented. Fig. 3b schematically shows a sectional side view of a side wall 20 with a signal generator 30 arranged thereon according to a modified example, which also does not fall within the scope of the claims. The signal generator 30 is also mounted on a designed as a perforated plate support plate 32. However, the signal generator 30 does not act directly on the housing wall 20, but on a vibrating diaphragm 35 arranged therebetween. The oscillating diaphragm 35 is in contact with the side wall for a transmission of motion and thus a sound transmission. The oscillating membrane 35 is made of translucent material and / or as shown, designed as a perforated plate. The support plate 32 and the membrane 35 are screwed in the illustrated embodiment with the wall 20 by means of a screw 77.

Fig. 3c shows the signal generator unit comprising the support plate 32, the signal generator 30, the membrane 35 and connecting lines 34 according to Fig. 3b ,

Fig. 5 shows a speaker unit 1 according to a second embodiment of the invention. The speaker unit 1 according to Fig. 5 is similar to the speaker unit 1 according to Fig. 1 , wherein a further housing base body 2 is provided. Preferably, the three housing base 2 are identical and, for example, have a polygonal base, in particular a square base. The housing body 2 are braced by a connecting rod 7, not shown, splash-tight with each other.

Fig. 6 schematically shows further embodiments of a loudspeaker unit according to the invention comprising three housing body 2, each having a triangular base. The housing base 2 are connected to each other splash-tight, in particular screwed. The speaker unit 1 is mounted in two of the illustrated embodiments on a leveling foot 9. The adjustable foot 9 has a circular base plate 90 and a column 91, wherein the column 91 may have any length. In addition, it is provided in one embodiment that the speaker unit 1 is arranged displaceably on the column 91.

Fig. 7 shows a further embodiment of a speaker unit 1, wherein the speaker unit 1 has a substantially cube-shaped housing base body 2. The housing base 2 is mounted on a base 9. In the cubic housing base body 2, a plurality of excitation systems can be integrated, wherein, for example, two or more exciter systems 3 can be provided per side wall 20.

Fig. 8 shows a further embodiment of a speaker unit 1, which comprises a shaped as a rounded cube housing base 2. As a result, six substantially planar side surfaces 20 are created, on which each exciter systems 3 can be arranged. In the illustrated embodiment, the speaker unit 1 is arranged on a stand 9.

Fig. 9 shows a further embodiment of a speaker unit 1 comprising three hexagonal housing base body 2, which are connected splash-tight with each other, in particular clamped by clamping elements. On the side walls 20 each excitation systems 3 are provided.

Fig. 10 shows a further embodiment of a speaker unit 1, wherein two housing base body 2 are connected to each other with a hexagonal base. In the illustrated embodiment, side surfaces 20 are alternately provided with excitation systems 3 and side surfaces 20 without excitation systems. In other embodiments, an excitation system is provided on each side surface 20.

Fig. 11 shows a further embodiment of a speaker unit 1 according to the invention, with two substantially hemispherical housing base bodies 2, which are connected to each other splash-tight, in particular braced. The speaker unit 1 is mounted on a stand 9. Distributed over the circumference of the housing base body 2 excitation systems 3 are arranged, wherein in Fig. 11 two excitation systems 3 are shown schematically. The number of excitation systems 3 is arbitrary. Preferably, eight excitation systems are provided. In order to use the housing wall 20 of the housing base 2 as a vibration membrane or sound box for the excitation systems 3, an adapter is preferably provided.

Fig. 12 schematically shows a section through a housing wall 20 of a housing base 2 according to Fig. 11 , In this case, an adapter 36 is provided, through which the exciter system 3 is connected to the housing wall 20. The adapter 36 is preferably made of a translucent material to avoid a shadow due to the exciter system 3.

Fig. 13 shows a further embodiment of a speaker unit 1 in a sectional view. The loudspeaker unit 1 comprises three housing base bodies 2a, 2b, 2c, which are each designed as truncated pyramids, wherein the truncated pyramids 2a, 2b, 2c can be connected flush to one another. The housing base bodies 2a, 2b, 2c are designed such that the cover surface of the housing base body 2a corresponds to the base surface of the housing base body 2b and the cover surface of the housing base body 2b to the base surface of the housing base body 2c.

In an interior of the housing base body 2a, 2b, 2c partition walls 26 are provided, through which the exciter systems are acoustically separated from each other. The partition walls 26 may be coated for this purpose with a suitable absorber material. The partition walls 26 have connecting regions, via which the housing base bodies 2a, 2b, 2c can be connected to one another. The housing base bodies 2a, 2b, 2c each have offset side walls 20 which form a positive connection of the housing base bodies 2a, 2b, 2c with each other by hiding or the like. enable.

In the housing base bodies 2a, 2b, 2c 26 chambers are formed by the partitions, wherein in all chambers or in individual chambers filament 8 are provided. The speaker unit 1 according to Fig. 13 also has a cover 4, wherein in a region below the cover 4 connections for devices or the like. are provided. An electronic control module 31 is preferably provided in a bottom area due to the weight so as to achieve good stability. Between the individual housing base bodies 2a, 2b, 2c sealing elements, not shown, may be provided. The partitions 26 are designed in the illustrated embodiment in one piece with the housing base bodies 2a, 2b, 2c.

Fig. 14 schematically shows a further embodiment of a speaker unit 1 according to the invention with a substantially tetrahedral housing base body 2 with three side walls 20. The housing base body 2 has on its underside an invisible access opening, which is closed by a cover 5. The cover 5 is at least partially inserted into the housing base body 2, so that connection points, in which water can collect, can be avoided. The cover 5 also serves as a mounting platform for arranged in the housing base 2 excitation systems. At a tip of the housing base body 2, a storage compartment is provided, which is closed by a cover element 4 splash-proof.

Fig. 15 shows the speaker unit 1 according to Fig. 14 without the housing base body 2 Fig. 15 the exciter systems 3, 3a visible. The housing base 2 is fixed by means of a connecting rod 7 on the cover 5, wherein the cover 5 at least partially in the in Fig. 14 shown housing base body 2 is inserted. In the illustrated embodiment, three excitation systems 3 are provided with a transmission range of about 20,000 Hz to about 200 Hz and two exciter systems 3a with a transmission range of about 200 Hz to about 40 Hz. The exciter systems 3a are thus designed as so-called woofers. In the in Fig. 14 A storage area 100 covered by the lid element 4 accommodates an mp3 player 100, for which mechanical and electrical connections are provided in the storage area. In the storage area a main switch 37 is further provided, through which a power supply of all the speaker unit 1 arranged exciter systems 3, 3a is stoppable. A power supply takes place in the illustrated embodiment via a battery, which is arranged under a battery housing 38. Alternatively or additionally, a mains supply can be provided.

Fig. 16 shows an embodiment of a speaker unit 1 similar FIGS. 14 and 15 however, only the woofers 3a arranged in the region of the cover element 5 are shown. In the in Fig. 16 illustrated embodiment, the connecting rod 7 is extended in a protruding from the housing base 2 area by a spike 9. The ground spike 9 is in detail in Fig. 17 shown. The ground spike 9 allows attachment of the speaker unit 1 in a floor area, for example in a garden. A corresponding ground spike is of course also with the in Fig. 1 to 13 connected speaker units connectable.

Fig. 18 schematically shows a detailed view of a connection of a signal generator (30) to a housing wall (20). The signal generator (30) is connected by means of a carrier plate (32) with the wall (20), wherein in the illustrated embodiment, a connection is effected by means of fusion. In other embodiments, the support plate (32) is additionally glued to the wall (20) and / or screwed. The signal generator (30) is additionally connected to the wall (20) by means of a claw (32a). The signal generator (30) is designed as a voice coil. The voice coil (30) is coupled to the wall (20) via the carrier plate (32), wherein the carrier plate for connection and signal transmission from the voice coil (30) on the wall (20) is used.

Claims (12)

1. Loudspeaker unit, comprising at least one housing base body (2, 2a, 2b, 2c) made of translucent synthetic material having an interior space, wherein within the interior space at least one luminous element (8) is disposed, and at least one exciter system (3) disposed within the interior space for generating a mechanical impulse on a membrane (20, 35), wherein the exciter system (3) comprises at least one signaling device (30), and wherein a wall (20) of the housing base body (2, 2a, 2b, 2c) acts as a membrane,
   characterized

   - in that the interior space is closed in a splash-proof manner,

   - in that the housing base body (2, 2a, 2b, 2c) is designed in one piece with an uninterrupted circumferential wall, and

   - in that a claw (32a) is provided for fixing the signaling device (30) to the wall (20).
2. Loudspeaker unit according to claim 1, characterized in that a plurality of exciter systems are provided, wherein the exciter systems are activatable and/or deactivatable separately, and/or in that a woofer is provided.
3. Loudspeaker unit according to claim 1 or 2, characterized in that a surface of the housing base body (2) is water-repellent at least in sections.
4. Loudspeaker unit according to any of claims 1 to 3, characterized in that the housing base body (2) includes at least one access opening which is closable in a splash-proof manner by means of at least one covering element (5), wherein the housing base body (2) and the covering element (5) are clamped together by means of at least one connecting rod (7).
5. Loudspeaker unit according to any of claims 1 to 4, characterized in that on an exterior surface of the housing base body at least one shelf tray closed by means of a cover element (4) in a splash-proof manner is provided, wherein the shelf tray has recesses for mechanical coupling and/or signal transmission for audio equipment and/or audio memory elements.
6. Loudspeaker unit according to any of claims 1 to 5, characterized in that a plurality of housing base bodies (2, 2a, 2b, 2c) are coupled to each other in the longitudinal direction, wherein the housing base bodies (2) are coupled by means of a connecting rod (7).
7. Loudspeaker unit according to any of claims 1 to 6, characterized in that the signaling device (30) is disposed on a supporting plate (32).
8. Loudspeaker unit according to claim 7, characterized in that a holder (25) for force-fitting and/or form-fitting accommodation of the supporting plate (32) is provided on a housing wall (20), wherein the recess has a conical tapering design and a wedge-shaped supporting plate (32) complementary thereto is insertable into the recess.
9. Loudspeaker unit according to claim 7, characterized in that the supporting plate (32) is melt-bonded or adhesively bonded to the wall.
10. Loudspeaker unit according to any of claims 1 to 9, characterized in that the signaling device (30) and/or the supporting plate (32) are/is mounted flush with the wall (20).
11. Loudspeaker unit according to any of claims 7 to 10, characterized in that the supporting plate (32) is a perforated plate.
12. Loudspeaker unit according to any of claims 1 to 12, characterized in that the interior space is partitioned into at least two chambers by at least one partition wall (26).

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