Sound source device for an electric piano
Patent Information
- Application Number
- DE202025100729
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-10-09
- Filing Date
- 2025-02-13
- Publication Date
- 2025-04-17
- Estimated Expiration
- 2035-02-28
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
TECHNICAL FIELDThe present invention relates to the field of speaker boxes, and more particularly to a sound source apparatus for an electric piano.PRIOR ARTCurrently, the tone color of electric pianos cannot be sufficient to the tone color of conventional pianos. In training, it is usually necessary to configure a relatively expensive conventional piano. In order for an electric piano to reproduce the tone color of a conventional piano, an improved electric piano sound source apparatus which is conducive to market transportation is required.CONTENT OF THE INVENTIONThe present invention provides a sound source apparatus for an electric piano having the same sound principle and similar tone color as a conventional piano, wherein the sound quality and the game feel of the electric piano are improved remarkably and the training cost is lowered.The present invention provides a sound source device for an electric piano, comprising a soundboard and a speaker, the soundboard comprising a bottom plate, a side plate and a top plate, a circle of side plates being provided at least on a lower surface of the top plate, a lower end of the side plate being mounted with the bottom plate, a resonance chamber being enclosed by the side plates, the top plate and the bottom plate, the side plates, the top plate and the bottom plate being bonded together as a whole, an installation hole for installing the speaker being provided at the center of the bottom plate, an upper end of the speaker passing through the bottom plate and entering the resonance chamber.The soundboard according to the present invention is similar to that of a conventional piano, and can effectively simulate the vibration sound of a conventional soundboard. At the same time, the side plates, the top plate and the bottom plate are integrally bonded, thereby avoiding the assembly of other docking parts, facilitating the conduction of vibrations and avoiding transmission interference, so that the tone color becomes cleaner. By providing the sound chamber, sound generated from the speaker is amplified and guided to the soundboard, and sound emitted at resonance of the soundboard is amplified, so that sound emitted from the soundboard is combined with electronic sound to generate a tone color similar to the wood tone color of the conventional piano.An extension is provided on an outer side of a lower end of the soundboard, and a plurality of mounting holes are provided on the extension. By providing the extension as a location for mounting or connection, it is avoided that the docking structure acts on the entire resonant floor, thereby ensuring that the resonant floor generates a cleaner sound.A plurality of edge extensions are provided on a lower edge of the loudspeaker, wherein the edge extensions rest on a lower end face of the base plate. By providing the edge extensions, the bottom plate can be set in vibration, so that the bottom plate can resonate the entire resonant floor.A plurality of connecting holes are provided on the edge extension for docking to the base plate. By providing the connecting holes, the docking of the loudspeaker to the resonant floor is ensured.The soundboard is mounted on a mounting surface within an electrical piano, wherein a plurality of elastic buffer blocks are provided between the extension of the soundboard and the mounting surface.The elastic buffer block is higher than a part of the loudspeaker protruding from the soundboard, so that the soundboard is in a floating state during assembly.In the present invention, by providing the elastic buffer block, the soundboard is prevented from driving the mounting surface of the electric piano when vibrating, thereby preventing interference between the electric piano and the soundboard and impairing the overall tone color; at the same time, the elastic buffer block can enhance the vibrating effect of the soundboard, the elastic buffer block being intended to be higher than a protruding part of the speaker in order to make the soundboard float in the air and to make resonances more easily.The elastic buffer blocks and the mounting holes are in one-to-one correspondence, which not only facilitates the installation but also limits the position.The soundboard assumes a polygonal or circular shape, but its shape may be varied as required.The top plate assumes a long strip-shaped plate structure, two side plates are symmetrically mounted on both ends of a lower end face of the top plate, the side plate assumes a rectangular ring structure, the bottom plate is mounted on a lower opening of the side plate, the top plate, the bottom plate and the side plate forming a one-piece double resonance chamber structure.BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a principal view of the present invention; FIG. 2 is a bottom view of the present invention; FIG. 3 is a structural view of an elastic buffer block; FIG. 4 is a schematic front view of an electric piano sound source apparatus mounted on an upper door of an electric piano according to the present invention; FIG. 5 is a schematic side view of the sound source apparatus for an electric piano mounted on the upper door of an electric piano according to the present invention; FIG. 6 is a schematic front view of an electric piano sound source apparatus mounted on a center plate of an electric piano according to the present invention; FIG. 7 is a schematic side view of the sound source apparatus for an electric piano mounted on the center plate of an electric piano according to the present invention; FIG. 8 is a schematic front view of a sound source device for an electric piano mounted on left and right side plates of an electric piano, respectively, according to the present invention; FIG. 9 is a schematic side view of the sound source apparatus for an electric piano mounted on the left and right side plates of an electric piano, respectively, according to the present invention; FIG. 10 is a schematic front view of an electric piano sound source apparatus mounted on a lower door of an electric piano according to the present invention; FIG. 11 is a schematic side view of the sound source apparatus for an electric piano mounted on the lower door of an electric piano according to the present invention; and FIG. 12 is a structural view of a resonant tank for which the solution having a one-piece double resonant chamber structure is selected.LIST OF REFERENCE CHARACTERS:1 Resonant floor; 2 - loudspeaker; 3 - side plate; 4 - top plate; 5 - bottom plate; 6 - resonant chamber; 7 - extension; 8 - mounting hole; 9 - rim extension; 10 - connection hole; 11 - electric piano; 12 - elastic buffer block; 13 - electric piano upper door; 14 - electric piano middle plate; 15 - electric piano left and right side plate; 16 - electric piano lower door.DETAILED DESCRIPTIONIn an embodiment of the present invention, as shown in Figs. 1 and 2, a sound source apparatus for an electric piano comprises a soundboard 1 and a speaker 2:, the soundboard 1 comprises a bottom plate 5, a side plate 3 and a top plate 4, a circle of side plates 3 is provided at least on a lower side of the top plate 4, at a lower end of the side plate 3 the bottom plate 5 is mounted, a resonance chamber 6 is enclosed by the side plates 3, the top plate 4 and the bottom plate 5, the side plates 3, the top plate 4 and the bottom plate 5 are integrally bonded together, an installation hole for installing the speaker 2 is provided at the center of the bottom plate 5, an upper end of the speaker 2 passes through the bottom plate 5 and enters the resonance chamber 6. On an outer side of a lower end of the soundboard 1, an extension 7 is provided, on which a plurality of mounting holes 8 are provided.A plurality of edge extensions 9 are provided on a lower edge of the loudspeaker 2, wherein the edge extensions 9 rest on a lower end face of the base plate 5.On the edge extension 9 a plurality of connecting holes 10 are provided for docking to the base plate 5.As shown in FIG. 3, the soundboard 1 is mounted on a mounting surface within an electric piano 11, and a plurality of elastic buffer blocks 12 are provided between the extension 7 of the soundboard 1 and the mounting surface.The elastic buffer block 12 is higher than a part of the loudspeaker 2 protruding from the soundboard 1, so that the soundboard 1 is in a floating state during assembly.The buffer elastic blocks 12 and the mounting holes 8 are in one-to-one correspondence, which facilitates the installation of the buffer elastic blocks 12 and limits the installation positions of the buffer elastic blocks 12.The shape of the soundboard 1 is polygonal or circular.The top plate 4 assumes a long strip-shaped plate structure, two side plates 3 are symmetrically mounted on both ends of a lower end face of the top plate 4, the side plate 3 assumes a rectangular ring structure, the bottom plate 5 is mounted on a lower opening of the side plate 3, the top plate 4, the bottom plate 5 and the side plate 3 forming a one-piece double resonance chamber structure.Embodiment 1The soundboard 1 can be manufactured in various sizes and shapes, for example, as a rectangle, square, diamond, petal shape, trapezoid, circle, oval, and regular polygon, etc.When the loudspeaker 2 generates sounds, a vibration block in the lower part of the loudspeaker 2 drives a diaphragm and a resonating piece so as to generate an electronic sound as shown in FIGS. 1 and 2; at the same time, the edge extensions 9 of the loudspeaker 2 may vibrate the bottom plate 5, and the vibration is applied to the entire soundboard 1 to resonate the soundboard; wherein, at resonance, a sound similar to that of the original wooden soundboard is generated, which is combined simultaneously with the sound emitted from the loudspeaker 2 in the resonance chamber 5, the larger sound generated after the combination improves the sustain effect, whereby the sound of the soundboard 1 is similar to that of a conventional piano, the sound quality is improved remarkably, and the sound of the electric piano becomes close to the sound color of a conventional piano.Embodiment 2The structure of the speaker box of the present invention can be mounted at an appropriate position of the electric piano 11 as needed.As shown in FIGS. 4 and 5, such a device can be mounted on an upper door 13 of an electric piano. Such devices are symmetrically mounted on an inner side surface of the upper door 13 of the electric piano. This position is closest to the player, which makes it easier for the player to intuitively understand the tone color and the game conditions.As shown in FIGS. 6 and 7, such a device can be mounted on a center plate 14 of an electric piano. Two such devices are symmetrically mounted on a front upper face of the electric piano center plate 14, these devices being directly combined with the electric piano center plate 14. These devices make it easier to enhance the original tone color, reduce the volume of the integrated geometry, save space, reduce the occupancy of the player's leg space, and provide the player with more comfort in playing.As shown in Figs. 8 and 9, two such devices can be mounted on the left and right side plates 15 of the electric piano 11, respectively, to fully utilize the interior of the piano and facilitate maintenance, cleaning and instructional use of the piano.As shown in FIGS. 10 and 11, two such devices may be mounted side by side on a lower door 16 of the electric piano 11 to save space on the center plate of the electric piano. When a dust cover is provided, the lower door-mounted devices provide the optimum sound generating effects.Embodiment 3When a one-piece double resonance chamber structure is selected as the soundboard 1 as shown in Fig. 12, a long strip-shaped rectangular plate structure is selected as the top plate 4 in the soundboard 1, two side plates 3 are symmetrically mounted on both ends of the lower end face of the top plate 4, the side plate 3 taking a rectangular ring structure, and a cable outlet is provided on opposite sides of the side plates 3, respectively.First, the speaker 2 and the floor panel 5 are mounted; then, the cable of the speaker 2 is led out from the cable outlet; thereafter, the floor panel 5 is docked to the lower end of the side panels 3 with an upper part of the speaker 2 inside the side panels 3 and, at the same time, the side panels 3, the top panel 4 and the floor panel 5 are bonded together; and finally, engraving and hot embossing operations are performed on the upper end face of the top panel 4 to ensure a pleasing appearance.In summary, the present invention relates to a sound source device for an electric piano, comprising a soundboard and a speaker, the soundboard comprising a bottom plate, a side plate and a top plate, a circle of side plates being provided at least on a lower surface of the top plate, a lower end of the side plate mounting the bottom plate, a resonance chamber being enclosed by the side plates, the top plate and the bottom plate, the side plates, the top plate and the bottom plate being bonded together as a whole, an installation hole for installing the speaker being provided at the center of the bottom plate, an upper end of the speaker passing through the bottom plate and entering the resonance chamber. The present invention can generate sound of a wooden soundboard of a piano, improve sound quality and game feel of the electric piano, and reduce instructional costs.
Claims
A sound source device for an electric piano, characterized by comprising a soundboard (1) and a speaker (2), said soundboard (1) comprising a bottom plate (5), a side plate (3) and a top plate (4), a circle of side plates (3) being provided at least on a lower side of said top plate (4), at a lower end of said side plate (3) said bottom plate (5) being mounted, wherein a resonance chamber (6) is enclosed by said side plates (3), said top plate (4) and said bottom plate (5), said side plates (3), said top plate (4) and said bottom plate (5) being integrally bonded together, wherein an installation hole for installing said speaker (2) is provided at the center of said bottom plate (5), wherein an upper end of the loudspeaker (2) passes through the bottom plate (5) and enters the resonance chamber (6).The sound source device for an electric piano according to claim 1, characterized in that an extension (7) is provided on an outer side of a lower end of the soundboard (1), wherein a plurality of mounting holes (8) are provided on the extension (7).The sound source device for an electric piano according to claim 1 or 2, characterized in that a plurality of edge extensions (9) are provided at a lower edge of the speaker (2), the edge extensions (9) resting on a lower end face of the bottom plate (5).The sound source device for an electric piano according to claim 3, characterized in that a plurality of connecting holes (10) for docking to the bottom plate (5) are provided on the edge extension (9).Sound source device for an electric piano according to any of claims 2 - 4, characterized in that the soundboard (1) is mounted on a mounting surface inside an electric piano (11), wherein one or more elastic buffer blocks (12) are provided between the extension (7) of the soundboard (1) and the mounting surface.The sound source device for an electric piano according to claim 5, characterized in that the elastic buffer block (12) is higher than a portion of the speaker (2) protruding from the soundboard (1).The sound source device for an electric piano according to claim 5, characterized in that the elastic buffer blocks (12) and the mounting holes (8) are in one-to-one correspondence.The sound source device for an electric piano according to any one of claims 1 - 7, characterized in that the shape of the soundboard (1) is polygonal or circular.The sound source device for an electric piano according to any one of claims 1 - 8, characterized in that said top plate (4) assumes a long strip-shaped plate structure, two side plates (3) are symmetrically mounted on both ends of a lower end face of said top plate (4), said side plate (3) assumes a rectangular ring structure, said bottom plate (5) is mounted on a lower opening of said side plate (3), said top plate (4), said bottom plate (5) and said side plate (3) forming a one-piece double resonance chamber structure.