Loudspeaker cabinet

Abstract

Loudspeaker housing (10) for a loudspeaker, preferably planar loudspeaker, comprising a plate-shaped front side (12), a plate-shaped rear side (14) oriented parallel to the front side (12), a separating element (16) arranged between the front side (12) and the rear side (14), which is designed to define at least two separate volumes (18), and at least one rectangular or oval recess (20) for a loudspeaker basket (26), which is provided on a preferably lateral and / or narrow end face of the loudspeaker housing (10).

Description

The invention relates to a loudspeaker enclosure for a loudspeaker, preferably planar loudspeakers.DE 10 2018 124 261 A1 discloses a planar loudspeaker which comprises a planar sound panel and a drive unit for driving the sound panel. The drive unit has a plate-shaped coil carrier with a coil formed thereon and a magnetic device. The coil carrier is arranged in a gap between two magnet units of the magnet device. A loudspeaker basket is not required in this case. Thus, the sound panel is vibrated at the front side.If, however, the planar loudspeaker is constructed in such a way that membranes are arranged on the lateral, narrow end faces, the use of a loudspeaker basket can be expedient in order to maximize the width of the beads and membranes and thus to increase the performance per structural size. In addition, the beads with a complex contour require the widest possible interior space in order to provide the necessary free space for the beads. The manufacture of loudspeaker housings required for this has not been possible up to now or has associated high costs.It is therefore an object of the invention to provide a loudspeaker enclosure for a loudspeaker, a system comprising a loudspeaker enclosure and a wall holder, a system comprising a loudspeaker enclosure and a loudspeaker basket, a loudspeaker and a manufacturing method in which the costs are low.This object is achieved by the subject matter and the method of the independent claims.According to the invention, the loudspeaker housing is suitable for a loudspeaker or can be used for this purpose.The loudspeaker can preferably be a planar loudspeaker, that is to say a flat loudspeaker.The loudspeaker housing has a plate-shaped front side and a plate-shaped rear side oriented parallel to the front side.For example, the front side can have at least one, preferably round, opening for a loudspeaker unit, e.g. a mid-loudspeaker unit, a tweeter unit and / or a broadband loudspeaker unit.For the mid-loudspeaker unit and / or wide-band loudspeaker unit, for example, a separate small air volume may be provided in the interior of the loudspeaker housing, which is separated from the woofer unit. The tweeter unit usually does not require its own volume of air in the loudspeaker housing.Between the front side and the rear side of the loudspeaker housing, a separating element is arranged which is configured to define at least two volumes separated from one another.The separating element can be formed completely or at least partially integrally with the front side and / or rear side. Alternatively, the separating element can be designed completely or at least partially as a separate component.The front side, the rear side and / or the separating element can preferably comprise or consist of a wood and / or plastic material.The loudspeaker housing has at least one rectangular or oval cutout for a loudspeaker basket.The term rectangular is to be understood broadly here. Thus, shapes are also included which are substantially rectangular, but have rounded corners, for example.Preferably, the recess extends the entire depth of the loudspeaker enclosure, including the front and rear sides.The loudspeaker basket can preferably have a loudspeaker unit, preferably for the low-frequency range.For example, the loudspeaker basket can have an angled base body.The base body can preferably be produced in a simple and cost-effective manner.The loudspeaker basket preferably has a fastening section for the direct fastening of a bead.The bead preferably has a fastening region extending in a fastening surface, preferably fastening plane, and an elongate, preferably rectangular or oval, oscillation region arranged within the fastening region.The fastening surface is preferably planar. Alternatively, it can also be curved and / or curved.The contour of the vibration region is preferably designed in such a way that the vibration region extends in sections on different sides of the fastening surface.For example, the contour of the bead can be axis-symmetrical and / or can have a V-shaped and / or W-shaped cross section at least in sections.The bead can be fastened, for example glued, for example, on the fastening region directly on the fastening section of the loudspeaker basket.Preferably, the bead is non-detachably connected to the loudspeaker basket. This allows a secure connection and prevents an undesired detachment.The cutout is provided on a, preferably lateral and / or narrow, end face of the loudspeaker housing. The cutout is preferably provided on a long end face of the loudspeaker housing.The recesses preferably extend over at least half of the front side of the loudspeaker housing.A loudspeaker basket, for example the main body of the loudspeaker basket, is inserted into the cutout and fastened, for example screwed, to the latter. The loudspeaker basket then forms the lateral termination.Preferably, a terminating element can be provided on each of the, e.g. short and / or narrow, end faces which do not have a cutout. The closure element can provide an airtight closure of the volumes.The terminating element can be manufactured, for example, as a multiplex component.For example, a holder for a stand can be provided on the lower closure element.Due to the layer-like construction of the front side, the separating element and the rear side as well as the recess, the loudspeaker housing can be produced in a cost-effective manner.Further developments of the invention can also be taken from the dependent claims, the description and the accompanying drawings.According to one embodiment, at least one rectangular or oval cutout for a loudspeaker basket is provided on opposite end sides of the loudspeaker housing.Preferably, the loudspeaker units arranged there, e.g. the beads and / or coils, move in opposite directions. On the one hand, the volume is thereby increased. On the other hand, the loudspeaker stabilizes and does not shake, for example.If a plurality of loudspeaker units are provided on the same end face, these can preferably move in the same direction. As a result, the volume increases.For example, in the case of a soundbar, a plurality of, for example two or more, loudspeaker units and thus recesses can be provided on the same end face. On the opposite end side, preferably no loudspeaker unit and therefore also no cutout is provided.According to a further embodiment, the separating element defines a volume for at least one central loudspeaker unit, tweeter unit, broadband loudspeaker unit and / or woofer unit.The separating element preferably performs a dual function, since it defines, for example, both the volume for the mid-loudspeaker unit and the at least one woofer unit.The volume for the middle loudspeaker unit, tweeter unit and / or wide-band loudspeaker unit can be formed, for example, by the separating element and the front side and the rear side. The separating element can preferably surround and / or surround the volume laterally in this case.Preferably, the separating element can extend over the entire length of the loudspeaker housing.The volume for the woofer or the volumes for the woofers can / can be formed, for example, by the separating element, the front side, the rear side and the loudspeaker body.In the case of a soundbar, the separating element can preferably define only the volumes for the woofer units.According to a further embodiment, the depth of the loudspeaker housing is smaller than the width and / or length of the loudspeaker housing.The loudspeaker enclosure is thus (significantly) smaller in the direction of the normal vector of the front side and / or the rear side than in at least one direction orthogonal thereto.According to a further embodiment, at least one cover layer, preferably made of a metal material, is provided, which is arranged on the front side and / or rear side.The cover layer can be glued flat to the front side and / or the rear side, for example.The metal material may preferably be aluminum.The cover layer improves the visual appearance of the loudspeaker and serves for producing a closed front surface which covers the loudspeaker basket.The loudspeaker basket can preferably close flush with the cover layer.For example, a diaphragm of the loudspeaker can close flush with the cover layer.The loudspeaker basket can be inserted into the recess and bear against a contact surface within the loudspeaker housing.The diaphragm of the loudspeaker can be spaced apart from the contact surface of the loudspeaker basket, for example, preferably by at least 1 cm.The membrane is preferably spaced apart from the, preferably lateral and / or narrow, end faces of the front and / or rear side.According to a further embodiment, the recess (or adjacent recesses together) or the loudspeaker basket (or adjacent loudspeaker baskets) extends over at least 50%, preferably at least 60%, preferably at least 70%, of the length of the, preferably lateral and / or narrow, end face of the loudspeaker housing on which the recess / s is / are provided.Alternatively or additionally, the recess (or adjacent recesses together) or the loudspeaker basket (or adjacent loudspeaker baskets) occupies at least 50%, preferably at least 60%, preferably at least 70%, of the surface of the, preferably lateral and / or narrow, end face of the loudspeaker housing on which the recess is provided.The recess or loudspeaker basket therefore preferably extends over a large part of the end face.According to a further embodiment, a wall holder for a wall holding device is provided.The wall holder can have, for example, a trapezoidal or triangular component, for example a metal part, e.g. sheet metal, and / or a plastic part. Angled side components can be arranged on the legs of the trapezoidal or triangular component. The side components can be formed as separate components or integrally with the trapezoidal or triangular component.Preferably, the side components are riveted, welded, screwed and / or glued to the trapezoidal or triangular component.The wall support preferably does not protrude beyond the surface of the loudspeaker enclosure. For example, it is formed inward. This has the advantage that the depth of the loudspeaker does not increase. This is advantageous from an aesthetic standpoint. On the other hand, this has a positive influence on the emission characteristic of the loudspeaker.The wall holding device can preferably have a trapezoidal or triangular base body with at least one fastening opening. At the legs of the trapezoidal or triangular base body, for example, angled side parts can be arranged.When the loudspeaker enclosure is suspended from the wall holder, the wall holder presses the loudspeaker enclosure against the wall.Mounting recesses on the loudspeaker housing can be closed, for example, by damping elements, e.g. silicone plugs. The loudspeaker housing then preferably bears against the wall on these damping elements.The mounting recesses preferably allow access to fastening elements, e.g. screws. The screws can serve, for example, for fastening the loudspeaker basket. By providing the mounting recesses on the rear side, the optics of the loudspeaker housing are not impaired.The invention further relates to a system comprising a loudspeaker enclosure according to the invention and a wall-holding device.The loudspeaker enclosure can thus be fastened to a wall.Alternatively, the loudspeaker housing can also be set up in a self-supporting manner, for example via a stand.In addition, the invention relates to a system having a loudspeaker housing according to the invention and at least one loudspeaker basket.A loudspeaker drive is preferably arranged in the loudspeaker basket.The loudspeaker drive preferably comprises at least one magnet and at least one coil.The magnet can have a different magnetization or polarity in sections, for example. Alternatively, at least two differently magnetized or poled magnets can also be provided.The coil is preferably flat. For example, the coil may have a width between 1 mm and 10 mm, e.g. 4 mm.The coil can preferably have at least one winding, wherein the winding can extend around a coil core.An outer side of the winding opposite the coil core can have, for example, a fastening region for fastening to the loudspeaker. Preferably, the coil is fastened to the loudspeaker exclusively via this fastening region.The winding can thus be fastened, for example glued, directly to the loudspeaker, for example the diaphragm and / or a centring device or a holder of the centring device.A coil carrier is preferably not provided here.The winding can be configured, for example, in the form of a strip and / or have a rectangular cross-sectional area.For example, the winding comprises or consists of an aluminum material and / or a copper material.Preferably, the winding further comprises an insulation layer, preferably an efloxacin layer and / or an adhesive lacquer layer.Preferably, the winding is made of an anodized aluminum strip. The efloxacin layer can have a thickness of between 1 μm and 10 μm, for example 4 μm, for example. The eloxat layer electrically isolates turns lying one above the other from one another.The coil core can comprise or consist of air and / or a, preferably glass fiber-reinforced, plastic material, for example.In the case of a coil core made of air, therefore, no fixed coil core at all is provided to some extent. In this case, a strong connecting means can be helpful, for example, which ensures that the coil remains in the desired shape.Preferably, the bead completely surrounds the drive of the loudspeaker.The coil is preferably oriented parallel to the front side.The invention also relates to a loudspeaker having at least one loudspeaker housing according to the invention and / or a system according to the invention.For example, the loudspeaker can have at least one central loudspeaker unit, tweeter unit, broadband loudspeaker unit and / or woofer unit.The loudspeaker preferably has a foot.The stand can be fastened or fastened, for example, on a holder on a lower closure element.Finally, the invention relates to a method for producing a loudspeaker housing according to the invention and / or a system according to the invention, in which the front side and / or rear side is milled from a workpiece.The components can, for example, first be produced in a clamping on a 3-axle milling machine and then glued. This enables simple and cost-effective production.Alternatively, the components can be milled from a pre-glued workpiece.The components can be aligned, for example, via wooden dowels for which the individual components can have holes. The bores are arranged in such a way that mounting at the wrong position and / or incorrect alignment is prevented.The terminating elements and / or the separating element can be screwed and / or glued to the front side and / or rear side, for example.It is also conceivable to pre-glue a workpiece and, for example, to cut out the terminating elements or the separating element together with the front side and / or rear side.Preferably, the loudspeaker basket can subsequently be inserted into the recess and fastened there, e.g. screwed.Finally, for example, the cover layer can be fastened flat on the outer side of the front side and / or rear side, e.g. glued flat.The wall holder can be fastened from the inside, for example, already when the components are glued together.For easier paintability, preferably all open milling edges can be sealed with an edge gluer.The layered construction of the loudspeaker housing enables simple assembly without the components having to be rotated or any holding devices being required. This allows very short assembly times and predestines the loudspeaker housing for automated assembly.Furthermore, the construction enables a free configuration of the outer contour for flat loudspeaker housings, since the contour is formed directly by the milling edges.In addition, the housing construction allows simple integration of the loudspeaker baskets, since the milling edge runs directly parallel to the loudspeaker basket (instead of at a 90° angle thereto). In a conventional design, the internal radius of 0 mm in the loudspeaker housing required for loudspeaker baskets would not be achievable.All embodiments and components of the devices described here are preferably designed to be produced by the method described here. Furthermore, all embodiments of the devices described here and all embodiments of the method described here can each be combined with one another, preferably also separately from the specific configuration in the context of which they are mentioned.The invention is described below by way of example with reference to the drawings. The following are shown: FIG. 1 is a perspective view of an embodiment of a loudspeaker enclosure according to the invention, FIG. 2 is a partially cut perspective view of the loudspeaker housing according to FIG. 1 , FIG. 3 is a perspective view of the loudspeaker housing according to FIG. 1 with inserted loudspeaker baskets, FIG. 4 shows a perspective view of the loudspeaker housing according to FIG. 1 with the cover layer mounted, FIG. 5 is a perspective view of an embodiment of a wall holding device according to the invention, FIG. 6 is another perspective view of the wall holder device according to FIG. 5 , FIG. 7 is a perspective view of an embodiment of a wall holder according to the invention, FIG. 8 shows a detail of a perspective view of an embodiment of a loudspeaker housing according to the invention with mounted wall holder, FIG. 9 is a perspective view of an embodiment of a system according to the invention comprising a wall holder and a wall holder, FIG. 10 shows a perspective view of an embodiment of a loudspeaker housing according to the invention with a system of wall holder and wall holder, FIG. 11 is a perspective view of another embodiment of a loudspeaker enclosure according to the invention; and FIG. 12 is a cross-sectional perspective view of the loudspeaker enclosure according to FIG. 11.First, it should be noted that the illustrated embodiments are merely exemplary in nature. Thus, individual features can be realized not only in the combination shown, but also alone or in other technically meaningful combinations. For example, the features of one embodiment can be combined with features of another embodiment as desired. Preferably, the number and / or position of the recesses for the loudspeaker baskets, the openings for the loudspeaker units, the mounting recesses and / or the fastening openings can vary.If a figure contains a reference sign which is not explained in the directly associated text of the description, reference is made to the corresponding preceding or following explanations in the description of the figures. Thus, the same reference numerals are used for identical or comparable components in the figures and these are not explained again.FIGS. 1 and 2 each show a loudspeaker housing 10 for a loudspeaker. The loudspeaker is designed as a planar loudspeaker.The loudspeaker enclosure 10 has a plate-shaped front side 12 and a plate-shaped rear side 14 oriented parallel to the front side 12.A separating element 16 is arranged between the front side 12 and the rear side 14.This creates several volumes 18 separated from each other.The loudspeaker housing 10 has one or more rectangular recesses 20 for at least one loudspeaker basket 26.Two recesses 20 are provided in each case on the two lateral end sides of the loudspeaker housing 10 (the recesses 20 on the opposite side are concealed in the perspective views and cannot be seen).On the short end sides, a respective closure element 22 can be provided, which together with the inserted loudspeaker baskets 26 ensure an airtight closure of the volumes 18.The passages between the volumes 18 serve for the passage of the cabling. These are also sealed, e.g. sealed, in an airtight manner.The front side 12 has two, preferably round, openings 24 for loudspeaker units, for example mid-tone loudspeaker units.In FIG. 3, the loudspeaker baskets 26 are inserted into the recesses 20. A separate loudspeaker basket 26 can be provided for each recess 20. Alternatively, a loudspeaker basket 26 can also extend over two or more recesses 20.As a termination, as can be seen in FIG. 4, a cover layer 28 can be fastened, e.g. glued, to the front side 12.FIGS. 5 and 6 each show a wall holding device 30, preferably for a wall holder 40 of a loudspeaker housing 10.The wall holding device 30 has a trapezoidal base body 34 with three fastening openings 36.Angled side parts 38 are arranged on the legs of the trapezoidal base body 34.In FIG. 7, a wall holder 40 is shown. This has a trapezoidal component 42. In the region of the legs of the trapezoidal component 42, angled side components 44 are provided.As shown in FIG. 8, the wall bracket 40 may be fixed in a speaker housing 10.Mounting recesses on the loudspeaker housing 10 can be closed, for example, by damping elements 46, e.g. silicone plugs.The wall holder 40 can be engaged with the wall holder 30 as shown in FIG. 9.The wall holder 30 is preferably smaller than the wall holder 40.In this case, the wall holder 40 can be slid over the wall holder 30 mounted on the wall, for example by means of screws, preferably with the narrow side upwards.In FIG. 10, this is illustrated for a loudspeaker housing 10, wherein the wall is not shown for better visibility.The loudspeaker housing 10 abuts the wall on the rear side 14 and tilts as a result of the interaction of the wall holding device 30, the wall holder 40 and the damping elements 46.FIGS. 11 and 12 each show a soundbar.In this case, recesses 20 for the loudspeaker basket 26 and openings 24 for loudspeaker units are provided only on one end face.For example, a center speaker unit, a tweeter unit, and a center speaker unit may be arranged side by side in the openings. However, the sequence of reach is fundamentally arbitrary and can vary.Alternatively, at least one center loudspeaker unit is conceivable in the middle of the soundbar, on the narrow side at the edge of the soundbar and / or an upwardly directed center loudspeaker unit.Instead of separate mid-loudspeaker units and tweeter units, a broadband loudspeaker unit can also be used.List of reference characters10 Loudspeaker housing 12 front side 14 rear side 16 separating element 18 volume 20 recess 22 terminating element 24 opening 26 loudspeaker basket 28 cover layer 30 wall holding device 34 main body 36 fastening opening 38 side part 40 wall holder 42 trapezoidal component 44 side component 46 damping elementReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 10 2018 124 261 A1

[0002]

Claims

Loudspeaker housing (10) for a loudspeaker, preferably planar loudspeaker, having a plate-shaped front side (12), a plate-shaped rear side (14) oriented parallel to the front side (12), a separating element (16) arranged between the front side (12) and the rear side (14), which separating element is designed to define at least two volumes (18) separated from one another, and at least one rectangular or oval cutout (20) for a loudspeaker basket (26), which cutout is provided on a, preferably lateral and / or narrow, front side of the loudspeaker housing (10).Loudspeaker enclosure (10) according to Claim 1, characterized in that at least one rectangular or oval cutout (20) for a loudspeaker basket (26) is provided in each case on opposite end faces of the loudspeaker enclosure (10).Loudspeaker enclosure (10) according to claim 1 or 2, characterized in that the separating element (16) defines a volume (18) for at least one mid-loudspeaker unit, tweeter unit, broadband loudspeaker unit and / or woofer unit.Loudspeaker enclosure (10) according to one of the preceding claims, characterized in that the depth of the loudspeaker enclosure (10) is less than the width and / or length of the loudspeaker enclosure (10).Loudspeaker enclosure (10) according to one of the preceding claims, characterized in that at least one cover layer (28), preferably made of a metal material, is provided, which is arranged on the front side (12) and / or rear side (14).Loudspeaker enclosure (10) according to one of the preceding claims, characterized in that the cutout (20) or adjacent cutouts together extends / en over at least 50%, preferably at least 60%, preferably at least 70%, of the length of the end face of the loudspeaker enclosure (10), and / or in that the cutout (20) or adjacent cutouts together occupies / assume at least 50%, preferably at least 60%, preferably at least 70%, of the area of the end face of the loudspeaker enclosure (10).Loudspeaker enclosure (10) according to one of the preceding claims, characterized in that a wall holder (40) is provided for a wall holding device (30).A system comprising a loudspeaker enclosure (10) according to any preceding claim and a wall holder (30).A system comprising a loudspeaker enclosure (10) according to any one of claims 1 to 7 and at least one loudspeaker basket (26).System according to claim 9, characterised in that the loudspeaker basket has a loudspeaker with a membrane which is spaced apart from a contact surface of the loudspeaker basket on which the loudspeaker basket bears against the loudspeaker housing, preferably by at least 1 cm.Loudspeaker having at least one loudspeaker enclosure (10) according to one of Claims 1 to 7 and / or a system according to one of Claims 8 to 10.

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