WO2022129096A1 - Lautsprecher - Google Patents
Lautsprecher Download PDFInfo
- Publication number
- WO2022129096A1 WO2022129096A1 PCT/EP2021/085765 EP2021085765W WO2022129096A1 WO 2022129096 A1 WO2022129096 A1 WO 2022129096A1 EP 2021085765 W EP2021085765 W EP 2021085765W WO 2022129096 A1 WO2022129096 A1 WO 2022129096A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sound panel
- loudspeaker according
- loudspeaker
- drive unit
- centering
- Prior art date
Links
- 230000000087 stabilizing effect Effects 0.000 claims description 52
- 230000006641 stabilisation Effects 0.000 claims description 38
- 238000011105 stabilization Methods 0.000 claims description 38
- 241000239290 Araneae Species 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- 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
- H04R7/12—Non-planar diaphragms or cones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
- H04R9/063—Loudspeakers using a plurality of acoustic drivers
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of 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
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
-
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/041—Centering
- H04R9/043—Inner suspension or damper, e.g. spider
Definitions
- the invention relates to a loudspeaker, preferably a planar loudspeaker, comprising a sound panel and a drive unit for driving the sound panel.
- DE 10 2015 103 339 A1 discloses a planar loudspeaker. With regard to a possible configuration and/or mode of operation of a planar loudspeaker, in particular the drive unit, DE 10 2015 103 339 A1 is included or referred to, also with regard to the feasibility and/or complete disclosure.
- DE 10 2018 124 253 A1 discloses a loudspeaker which can have a stabilization device and/or a centering device. With regard to a possible configuration and/or mode of operation of this loudspeaker, in particular the stabilization device and/or centering device, DE 10 2018 124253 A1 is included or referred to, also with regard to the feasibility and/or complete disclosure.
- a sound panel of a conventional planar speaker is always flat.
- the disadvantage of this is that the planar loudspeaker is consequently not suitable for installations in uneven conditions, e.g. curved vehicle ceilings.
- the loudspeaker according to the invention has a sound panel and a holder.
- the sound panel can be designed as a flat membrane.
- the loudspeaker can be a flat membrane loudspeaker.
- the sound panel can also replace a membrane.
- the sound panel can be stiff.
- the sound panel preferably consists of a light material or a composite material.
- the sound panel can preferably be designed as a “carbon sandwich”.
- a RohacellO material can be connected to carbon, eg baked.
- the speaker has a mount.
- the sound panel can be connected to the mount, preferably indirectly.
- the sound panel can be attached to the headliner, for example, via the bracket.
- a support frame for the sound panel is not necessary, but conceivable.
- the holder can be designed in one piece or in several pieces.
- the loudspeaker is preferably designed as a planar loudspeaker.
- planar loudspeaker is to be understood broadly in this context and also includes a sound panel which is not completely flat but is curved and/or arched to a certain extent. However, this does not include speaker bodies that are completely bent into a funnel or cone.
- the loudspeaker preferably has no loudspeaker frame.
- the loudspeaker has at least one drive unit for driving the sound panel.
- the drive unit is attached to the bracket.
- the drive unit is preferably designed to cause the sound panel to oscillate for sound generation.
- the drive unit is preferably designed as an electrodynamic drive.
- a current-carrying conductor e.g. a wire
- a force is exerted on the sound panel connected to the drive unit.
- the drive unit has a preferably plate-shaped or ring-shaped coil body with a coil.
- the bobbin can consist exclusively of the coil, for example.
- the coil former can have a coil carrier, for example, on and/or in which the coil is formed.
- the coil support can be designed, for example, in the form of a plate or ring.
- the drive unit also has a magnetic device.
- the coil body can be arranged in a gap between two magnet units of the magnet device.
- the voice coil can move, for example, between two bar magnets, eg neodymium magnets.
- the bobbin is in a direction perpendicular to a connection tion straight between the two magnet units movable, for example depending on the electromagnetic interaction between the coil and the magnet device.
- the bobbin can move perpendicular to the sound panel.
- the bobbin preferably moves in the manner of a piston.
- the coil is wound in such a way that it extends at least essentially along a plane oriented parallel to a direction of movement.
- coil layers e.g. two, three, four, five, six or more, can be provided.
- the coil layers can be arranged parallel to one another, for example.
- the sound panel has a bend and/or curvature.
- the sound panel can be fully curved and/or arched. Alternatively, only at least a partial area of the sound panel can be bent and/or arched. For example, at least one edge area or two opposite or all edge areas of the sound panel can be straight and e.g. lie in one plane. For example, only the inner area of the sound panel can be curved and/or arched.
- the sound panel is suitable for installation in uneven conditions.
- the sound panel may be curved about at least one axis, such as the X and/or Y axis. Furthermore, the sound panel can be curved about two or three axes, for example the X, Y and/or Z axis. For example, the sound panel can be curved or curved in three dimensions.
- An end face of the coil body that is fixed to the sound panel is adapted to the shape of the bend and/or curvature.
- the curved and/or arched sound panel can be made to vibrate.
- the coil body can preferably be designed as a flat plate.
- the cross section of the plate can form a straight line, for example.
- the line of projection of the bobbin onto the sound panel is preferably straight.
- the ends of the bobbin are open.
- the ends of the coil body are not connected to one another and do not form a ring or cylinder.
- the contact area between the coil body and the sound panel forms a straight line.
- the ends of the coil body can also be closed, for example.
- the coil former forms a ring or cylinder. In the projection, the contact area between the coil body and the sound panel thus forms a circle.
- the loudspeaker according to the invention preferably does not have a central dust cap, as is provided, for example, in cone loudspeakers.
- the loudspeaker according to the invention is preferably not axisymmetric with respect to the central axis of the drive unit.
- the sound panel has a circular arc-shaped cross section with a center angle between 0° and 270°, preferably between 40° and 70°.
- the center angle in the X direction and the center angle in the Y direction can be the same or different.
- the curvature of the sound panel is approximately described by an extruded segment of a circle.
- the sound panel can have end points which do not touch and/or delimit the circle segment.
- the sound panel is convexly curved and/or arched.
- the sound panel can be adapted to the shape of the object on which the loudspeaker is mounted.
- the sound panel is curved and/or arched in a concave manner.
- the sound panel can be adapted to the shape of the object on which the loudspeaker is mounted.
- a combination of convex and concave bending and/or arching is also possible.
- the sound panel can be convex in the X direction and concave in the Y direction and vice versa.
- the coil body is fixed in a form-fitting manner on the sound panel, for example glued.
- the entire end face of the coil body is preferably fixed to the sound panel in a form-fitting manner.
- the end face of the coil body can be convex and/or concave.
- the vibrations are thus passed on directly to the sound panel.
- At least or exactly two, three, four, five, six or more drive units are provided.
- the sound panel is driven in parallel by two linear drives.
- the drives have a planar effect, i.e. not a point. In this way, for example, the formation of bending waves can be prevented.
- the drive units can preferably be fastened to the same holder, although different holders are also possible.
- a stabilization device can optionally be arranged between the drive units.
- At least one centering device is provided for centering the sound panel and/or at least part of the drive unit, preferably the plate-shaped coil body.
- a voice coil can be centered between bar magnets.
- the centering device can preferably be arranged in a different plane than a stabilizing device.
- the stabilizing device is arranged in a first plane and the centering device is arranged in a second plane, only desired piston movements are permitted, for example, and all other movements, such as tipping, horizontal displacement and/or axial rotation, are prevented.
- the centering device has at least one lifting section which is designed to be movable, flexible and/or elastic.
- the modulus of elasticity can be less than 20 GPa, 15 GPa, 10 GPa, 5 GPa, 1 GPa, or 0.1 GPa.
- the lifting section can perform a lifting movement of between 1 mm and 10 mm, preferably between 4 mm and 6 mm.
- the centering device can be attached to the sound panel and/or the mount, for example using an adhesive.
- the lifting section dynamically fixes the sound panel to the mount.
- the sound panel can thus, for example, only carry out the desired piston movement.
- the centering device can, for example, be constructed in the same way as the stabilization device. However, these are preferably designed differently.
- the stabilizing device can, for example, be designed as a pot spider.
- the stabilizing device preferably has a larger diameter than the centering device.
- the centering device and the stabilizing device can, for example, be arranged coaxially and/or concentrically with one another. Overall, a spider that is linearly effective in the stroke direction results, so to speak.
- the centering device and the stabilizing device can, for example, move in opposite directions relative to one another.
- the centering device and the stabilizing device can also be arranged at different locations and consequently not one above the other.
- a triangular arrangement of the centering device(s) and the stabilizing device(s) is conceivable.
- the stabilizing device can be movably connected to the sound panel, while the centering device can be movably attached to the bracket. As a result, the stabilizing device and the centering device are each firmly fixed on one side.
- the stabilization device can preferably have a stabilization bracket.
- the stabilization mount can be rigid, for example as a tube.
- the stabilizing bracket may be firmly attached, e.g., glued, to the bracket.
- the stabilizing bracket may be firmly attached, e.g., glued, to the bracket.
- the centering device can preferably have a centering mount.
- This can, for example, be centrally connected to the lifting section.
- the centering mount can be rigid, for example, as a tube.
- the centering bracket can be firmly attached to the sound panel, e.g. glued. Therefore, only the section of the centering device facing the holder is movable.
- the diameter of the centering bracket is preferably smaller than the diameter of the stabilizing bracket.
- the centering bracket can be arranged within the stabilization bracket.
- the planar loudspeaker is stabilized by this arrangement in different levels.
- the sound panel and/or the drive unit is thereby guided, stabilized and/or centered. Nevertheless, a piston-shaped lifting movement is made possible.
- the centering device does not surround the drive unit.
- the centering device is spaced apart from the drive unit.
- the centering device does not touch the drive unit.
- an end face of the centering device that is fixed to the sound panel is adapted to the shape of the bend and/or curvature. In this way, the curved and/or arched sound panel can be centered over a large area.
- the centering device is fixed to the sound panel in a form-fitting manner.
- the entire end face of the centering device is preferably fixed to the sound panel in a form-fitting manner.
- the end face of the centering device can be convex and/or concave.
- the centering device is arranged centrally on the sound panel.
- the centering device is arranged centrally on the sound panel.
- exactly one centering device can be provided.
- centering devices are distributed over the sound panel and arranged, for example, in four corner areas of the sound panel.
- a central centering device can also be provided.
- At least one stabilization device is provided for stabilizing a movement of the sound panel.
- a coil, e.g. magnetic field coil and/or voice coil, of the drive unit is, for example, automatically centered by the stabilization device. This prevents the coil from twisting axially, vertically and/or horizontally.
- the upper and lower edges of the coil former thus run parallel to the edges of the magnets and thus in the desired manner in the magnetic field during the entire movement sequence.
- the stabilization device is arranged between the sound panel and the holder and has at least one lifting section which is designed to be movable, flexible and/or elastic.
- the modulus of elasticity can be less than 20 GPa, 15 GPa, 10 GPa, 5 GPa, 1 GPa, or 0.1 GPa.
- the lifting section can perform a lifting movement of between 1 mm and 10 mm, preferably between 4 mm and 6 mm.
- the stabilizing device can be attached to the sound panel and/or the mount, for example using an adhesive.
- the lifting section dynamically fixes the sound panel to the bracket.
- the sound panel can thus, for example, only carry out the desired piston movement.
- the stabilization device does not surround the drive unit.
- the stabilizing device is spaced apart from the drive unit.
- the stabilizing device does not touch the drive unit.
- an end face of the stabilization device that is fixed to the sound panel is adapted to the shape of the bend and/or curvature.
- the curved and/or arched sound panel can be stabilized over a large area.
- the stabilization device is fixed in a form-fitting manner on the sound panel.
- the complete end face of the stabilization device is preferably fixed to the sound panel in a form-fitting manner.
- the end face of the stabilization device can be convex and/or concave.
- the stabilization device is arranged centrally on the sound panel.
- exactly one stabilization device can be provided.
- several stabilizing devices are distributed over the sound panel and arranged, for example, in four corner areas of the sound panel.
- the sound panel is evenly supported, increasing stability.
- a central stabilization device can also be provided.
- the lifting section of the stabilizing device and/or the centering device comprises or consists of a rubber, foam and/or fabric material.
- a lifting movement can be guided and/or limited by this elastic and/or flexible material.
- the lifting movement can be guided and/or limited, e.g. by means of a spring device.
- the lifting section has a recess, for example a central recess.
- the lifting section can be closed and, for example, have a base or cover.
- the lifting section can, for example, be attached, e.g. glued, to the edge of the recess on the sound panel or the holder.
- the lifting section is ring-shaped.
- a recess of the lifting section can be ring-shaped.
- annular is to be understood broadly. In addition to annular shapes, oval shapes are also included. Alternatively, an angular configuration of the lifting section is conceivable.
- the lifting section comprises or consists of a bead and/or spider.
- a spider which is also called a centering spider, can be designed, for example, as a radial and/or concentric spring element, for example a bidirectional disk spring.
- the centering device and/or the stabilizing device comprises at least one retaining ring.
- a preferably ring-shaped lifting section can be attached to the retaining ring.
- the lifting section is preferably arranged coaxially and/or concentrically on the retaining ring.
- the retaining ring can also be solid, for example in the form of a puck or a disk.
- the lifting section for example a bead, can be arranged, for example, between the retaining ring and the sound panel or between the retaining ring and the mount.
- the centering device and/or the stabilizing device comprises two retaining rings, which preferably have different diameters, with the lifting section being arranged between the retaining rings.
- the smaller diameter retaining ring may communicate with the sound panel and the larger diameter retaining ring with the mount. For example, there is less weight on the sound panel.
- the reverse orientation is also conceivable. In this way, the retaining ring with the smaller diameter can be connected to the bracket and the retaining ring with the larger diameter can be connected to the sound panel.
- the retaining rings can, for example, be moved telescopically into one another.
- the lifting section connects the retaining rings together.
- the lifting section can be glued to the retaining rings.
- At least one retaining element that does not completely surround the sound panel is provided on the sound panel.
- the holding element is designed to attach the sound panel to a support frame.
- centering and/or stabilization can be achieved, for example.
- a centering device and/or stabilizing device is not necessary, although it is nevertheless possible.
- the holding element can be U-shaped.
- One leg of the holding element can be connected, eg glued, to the sound panel, while the other leg can be connected, eg glued, to the support frame.
- the sound panel can preferably have several, e.g. two, three, four, five, six, seven, eight or more holding elements.
- the holding elements can be arranged on different, e.g. opposite, sides of the sound panel.
- two holding elements face each other. A lateral spring force is canceled out in this way.
- a holding element completely surrounding the sound panel is provided on the sound panel.
- the holding element is designed to attach the sound panel to a support frame.
- centering and/or stabilization can be achieved, for example.
- a centering device and/or stabilizing device is not necessary, although it is nevertheless possible.
- the sound panel is preferably connected or can be connected to a carrier frame over the entire circumference via the holding element.
- no air can escape between the sound panel and the support frame.
- no objects, such as dust particles can penetrate.
- the sound panel can be rounded at the corners.
- the holding element is also rounded off at the corners.
- the radii at the corners can be made significantly smaller in relation to the size of the holding element compared to conventional loudspeakers.
- the non-full circumference and/or the full circumference holding element is preferably elastic. This enables a relative movement between the sound panel and the support frame, for example.
- the modulus of elasticity can be less than 20 GPa, 15 GPa, 10 GPa, 5 GPa, 1 GPa, or 0.1 GPa.
- the holding element can, for example, comprise or consist of a plastic, rubber, foam, fabric, textile and/or paper material.
- the retaining element can be designed in the form of a channel and/or run along the edge of the sound panel.
- the holding element is preferably designed as a bead.
- the holding element is preferably attached to the support frame and to the sound panel, e.g. glued.
- a piston-shaped movement of the coil body can be ensured by the holding element.
- the invention also relates to the use of a loudspeaker according to one of the preceding claims for a headliner of a vehicle.
- the vehicle can preferably be a motor vehicle, for example a car, a mobile home, a bus or a truck.
- the invention relates to a loudspeaker, preferably a planar loudspeaker, comprising a preferably flat sound panel, a carrier frame in which the sound panel is arranged, and a holder.
- the loudspeaker has at least one drive unit, preferably attached to the mount, for driving the sound panel.
- the loudspeaker comprises at least one stabilization device, preferably not surrounding the drive unit and/or spaced apart from the drive unit, for stabilizing a movement of the sound panel.
- the stabilization device is arranged between the sound panel and the holder and has at least one lifting section which is designed to be movable, flexible and/or elastic.
- the sound panel is fully connected to the support frame via a moveable, flexible and/or elastic holding element.
- An optional centering device can also be provided.
- the sound panel can be flat or curved or arched.
- FIG. 1 is a perspective bottom view of an embodiment of a loudspeaker according to the invention
- FIG. 2 shows a perspective plan view of an embodiment of a loudspeaker according to the invention
- Fig. 3 is a side view of an embodiment of a
- Fig. 5 is a sectional perspective view of an embodiment of a
- FIG. 6 shows a plan view of a further embodiment of a loudspeaker according to the invention
- Figure 7 is a sectional perspective view of another
- FIG. 8 shows a sectional view of an embodiment of a loudspeaker according to the invention
- Figure 9 is a sectional perspective view of another
- FIG. 10 shows a sectional perspective view of a further embodiment of a loudspeaker according to the invention
- FIG. 11 shows a perspective plan view of a further embodiment of a loudspeaker according to the invention.
- FIG. 12 shows a perspective plan view of a further embodiment of a loudspeaker according to the invention.
- FIG. 13 shows a perspective plan view of a further embodiment of a loudspeaker according to the invention.
- FIG. 14 is a sectional view of another embodiment of a loudspeaker according to the invention.
- the illustrated embodiments are purely exemplary in nature. Individual features can be implemented not only in the combination shown, but also individually or in other technically sensible combinations. For example, the features of one embodiment can be arbitrarily combined with features of another embodiment. For example, the shape, number and/or position of the stabilizing device(s), centering device(s) or drive units can vary.
- the sound panel can be flat in each case.
- the sound panel can be curved and/or curved.
- the stabilization device(s) and/or centering device(s) shown can also be replaced by a full-circumferential holding element.
- the holder 12 can have several individual parts which are connected to one another, for example screwed. Alternatively, the bracket 12 can be formed in one piece.
- Two drive units 14 are fastened to the holder 12, for example screwed.
- the drive units 14 each comprise a magnet device 16 with two magnet units 18 and a plate-shaped coil body 20 arranged in a gap between them.
- a stabilizing device 22 is arranged between the drive units 14 .
- the stabilizing device 22 extends between the sound panel 10 and the bracket 12.
- the stabilizing device 22 includes a first retaining ring 24 and a second retaining ring 26.
- the first retaining ring 24 has a smaller diameter than the second retaining ring 26.
- a lifting section designed as a bead 28 is provided between the retaining rings 24 , 26 .
- the retaining rings 24, 26 are connected to each other movable relative to each other.
- the stabilization device 22 can thus simulate the movement of the sound panel 10, which is driven synchronously by the drive units 14, for example.
- the stabilizing device 22 is formed by a spider 30 . Retaining rings are not necessary.
- the spider 30 is designed as a kind of concentric spring.
- the spider 30 can have a central recess, for example, or it can be closed.
- Two spiders 30 can also be used together.
- the spiders 30 can be oriented in opposite directions and attached coaxially one above the other. The spring deflection is thereby extended.
- four stabilization devices 22 are provided instead of one central stabilization device. These are arranged in the corner areas of the sound panel 10 .
- FIG. 7 shows a sound panel 10 which is connected to a carrier frame 34 via holding elements 32 .
- the holding elements 32 are comparatively narrow and do not extend over the entire circumference of the sound panel 10, although this is also possible.
- the holding elements 32 are, for example, narrower than the distance between two holding elements 32.
- the holding elements 32 can be distributed uniformly on the sound panel 10, for example. At least one holding element 32 is preferably provided on each side of the sound panel 10 . In this way, the sound panel 10 can be stabilized and/or centered on each side.
- the holding elements 32 are preferably elastic. This enables a relative movement between the sound panel 10 and the support frame 34, for example.
- the holding element 32 can have a wavy section. This allows for some play.
- One leg of the holding element 32 can be connected to the sound panel 10 while the other leg can be connected to the support frame 34 .
- FIG. 9 shows that the holding element 32 can also be U-shaped.
- the legs of the U-shaped holding element 23 can be oriented parallel to the support frame 34, for example.
- the holding element 23 can quasi bend during a lifting movement of the sound panel 10 .
- the apex can increase or decrease, for example.
- the legs of the U-shaped holding element 23 can be oriented parallel to the sound panel 10, for example.
- Fig. 11 shows a loudspeaker with a central stabilizer 22 and a plurality of centering devices 36.
- the centering devices 36 are arranged above the stabilizer 22 and consequently in a different plane.
- a centering device 36 is arranged coaxially with the stabilizing device 22 .
- the arrangement in different planes provides sufficient stabilization or centering even if the centering devices 36 and the stabilization device 22 are not arranged directly one above the other.
- stabilization devices 22 can be provided.
- a stabilization device 22 can be arranged in each corner area.
- a centering device 36 can be located directly above it, for example.
- a centering device 36 is arranged coaxially above a stabilizing device 22 .
- the centering device 36 and the stabilizing device 22 can, for example, move in opposite directions relative to one another.
- the stabilizing device 22 is movably connected to the sound panel 10, while the centering device 36 can be movably attached to the mount 12 via a holding means 38.
- the stabilization device 22 can preferably have a stabilization mount designed as a stabilization tube 40 .
- Stabilizing bracket 40 is fixedly attached to bracket 12, e.g., glued.
- the centering device 36 has a centering mount designed as a centering tube 42 .
- the centering tube 42 can be hollow or solid.
- the centering bracket 42 is firmly attached to the sound panel 10, e.g. glued.
- the diameter of the centering bracket 42 is preferably smaller than the diameter of the stabilizing bracket 40.
- the centering bracket 42 is arranged inside the stabilizing bracket 40.
- FIG. 15 shows a loudspeaker with a sound panel 10 curved convexly in the X-direction. For better visibility, the sound panel 10 is shown transparent.
- a full-circumferential holding element 32 connects the sound panel 10 to the support frame 34.
- the bobbin 20 is adapted to the shape of the sound panel 10 .
- Fig. 16 shows a loudspeaker with a sound panel 10 curved convexly in the Y-direction.
- the bobbin 20 is adapted to the shape of the sound panel 10 .
- the sound panel 10 shown in FIG. 17 is convexly curved in the X and Y directions.
- the bobbin 20 is adapted to the shape of the sound panel 10 .
- FIG. 18 shows a state in which the speaker is installed in a headliner 44 of a vehicle.
- the bobbin 20 is adapted to the shape of the sound panel 10 .
- Fig. 20 shows a loudspeaker with a sound panel 10 curved concavely in the Y-direction.
- the bobbin 20 is adapted to the shape of the sound panel 10 .
- the sound panel 10 shown in FIG. 21 is concave in the X and Y directions.
- the bobbin 20 is adapted to the shape of the sound panel 10 .
- FIG. 22 shows a state in which the speaker is installed in a headliner 44 of a vehicle.
- the sound panel 10 may be convex in the X direction and concave in the Y direction.
- the reverse case is also conceivable.
- centering tube centering bracket
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/267,146 US20240015443A1 (en) | 2020-12-14 | 2021-12-14 | Loudspeaker |
DE112021006485.1T DE112021006485A5 (de) | 2020-12-14 | 2021-12-14 | Lautsprecher |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202020107241.2U DE202020107241U1 (de) | 2020-12-14 | 2020-12-14 | Lautsprecher |
DE202020107241.2 | 2020-12-14 |
Publications (1)
Publication Number | Publication Date |
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WO2022129096A1 true WO2022129096A1 (de) | 2022-06-23 |
Family
ID=74495222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/085765 WO2022129096A1 (de) | 2020-12-14 | 2021-12-14 | Lautsprecher |
Country Status (3)
Country | Link |
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US (1) | US20240015443A1 (de) |
DE (2) | DE202020107241U1 (de) |
WO (1) | WO2022129096A1 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3132323B2 (ja) * | 1995-01-30 | 2001-02-05 | 松下電器産業株式会社 | スピーカとその製造方法 |
US20090214075A1 (en) * | 2008-02-27 | 2009-08-27 | Takeru Inoue | Loudspeaker |
US20100215208A1 (en) * | 2009-02-24 | 2010-08-26 | Koichi Sadaie | Voice coil assembly and loudspeaker using the same |
DE102015103339A1 (de) | 2015-03-06 | 2016-09-08 | LEGIS GbR (vertretungsberechtigter Gesellschafter: Thomas C.O. Schmidt, 10707 Berlin) | Planarlautsprecher mit doppelseitiger Ferrofluidlagerung einer Schwingspule einer Antriebseinheit sowie Akustikeinheit mit einem derartigen Planarlautsprecher |
DE102018124253A1 (de) | 2018-10-01 | 2020-04-02 | Grawe & Schneider GdbR (vertretungsberechtigte Gesellschafter: Thomas Grawe, 83088 Kiefersfelden und Gerd-Peter Schneider, 84032 Landshut) | Planarlautsprecher |
US20200275213A1 (en) * | 2019-02-25 | 2020-08-27 | Resonado, Inc. | Thin speaker with curved or angled structure |
-
2020
- 2020-12-14 DE DE202020107241.2U patent/DE202020107241U1/de active Active
-
2021
- 2021-12-14 DE DE112021006485.1T patent/DE112021006485A5/de active Pending
- 2021-12-14 US US18/267,146 patent/US20240015443A1/en active Pending
- 2021-12-14 WO PCT/EP2021/085765 patent/WO2022129096A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3132323B2 (ja) * | 1995-01-30 | 2001-02-05 | 松下電器産業株式会社 | スピーカとその製造方法 |
US20090214075A1 (en) * | 2008-02-27 | 2009-08-27 | Takeru Inoue | Loudspeaker |
US20100215208A1 (en) * | 2009-02-24 | 2010-08-26 | Koichi Sadaie | Voice coil assembly and loudspeaker using the same |
DE102015103339A1 (de) | 2015-03-06 | 2016-09-08 | LEGIS GbR (vertretungsberechtigter Gesellschafter: Thomas C.O. Schmidt, 10707 Berlin) | Planarlautsprecher mit doppelseitiger Ferrofluidlagerung einer Schwingspule einer Antriebseinheit sowie Akustikeinheit mit einem derartigen Planarlautsprecher |
DE102018124253A1 (de) | 2018-10-01 | 2020-04-02 | Grawe & Schneider GdbR (vertretungsberechtigte Gesellschafter: Thomas Grawe, 83088 Kiefersfelden und Gerd-Peter Schneider, 84032 Landshut) | Planarlautsprecher |
US20200275213A1 (en) * | 2019-02-25 | 2020-08-27 | Resonado, Inc. | Thin speaker with curved or angled structure |
Also Published As
Publication number | Publication date |
---|---|
DE112021006485A5 (de) | 2023-10-19 |
US20240015443A1 (en) | 2024-01-11 |
DE202020107241U1 (de) | 2021-01-20 |
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