Sound source device of electric piano

Abstract

The utility model relates to a sound source device of an electric piano, which comprises a soundboard and a loudspeaker, the soundboard comprises a bottom plate, a side plate and a cover plate, the side plate is arranged on the bottom plate, the cover plate is arranged on the side plate, a resonance cavity is formed among the side plate, the cover plate and the bottom plate, the side plate, the cover plate and the bottom plate are glued to form a whole, and the loudspeaker is arranged on the soundboard. A mounting hole for mounting the loudspeaker is formed in the middle of the bottom plate, and the upper end of the loudspeaker penetrates through the bottom plate to enter the resonance cavity. The electronic piano can give out the tone of a wooden soundboard of the piano, the tone quality and the playing feeling of the electronic piano are improved, and the teaching cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sound box technical field, especially an electric piano's sound source device. BACKGROUND

[0002] The current electric piano tone cannot reach the traditional piano, and the cost of the traditional piano is high during teaching, so that the electric piano can play the tone of the traditional piano, and an improved electric piano sound source device is needed, which is beneficial to market promotion. SUMMARY

[0003] The utility model provides an electric piano's sound source device, has same sound production principle and similar tone with traditional piano, significantly improves electric piano's tone quality and playing feeling, reduces teaching cost.

[0004] The utility model provides an electric piano's sound source device, including sound board and loudspeaker, the sound board includes bottom plate, side plate and cover plate, at least one circle side plate is provided under the cover plate, the bottom plate is installed on the lower end of side plate, the side plate, cover plate and bottom plate are surrounded to form the resonance cavity, the side plate, cover plate and bottom plate are glued to form a whole, the bottom plate middle part is provided with the mounting hole of loudspeaker installation, the upper end of loudspeaker passes through the bottom plate and enters the resonance cavity.

[0005] The utility model sound board is same with traditional piano, can effectively simulate traditional sound board vibration sound, and the side plate, cover plate and bottom plate are glued to form a whole, avoid the assembly of other docking components, convenient vibration conduction, avoid causing transmission interference, make the tone more pure. Through setting up the resonance cavity, the sound produced by the loudspeaker is expanded, and the sound is conducted to the sound board, the sound emitted when the sound board resonates is strengthened, so that the sound emitted by the sound board can be combined with the electronic sound, forming the tone close to the traditional wooden sound of the piano.

[0006] The outer side of the lower end of the sound board is provided with an extension edge, and a plurality of assembly holes are arranged on the extension edge, the extension edge is arranged as the installation connection part, the overall sound board is prevented from being affected by the docking structure, and the sound board emits more pure sound.

[0007] The lower end edge of the loudspeaker is provided with a plurality of edge extension edges, and the edge extension edges are arranged on the bottom plate, the edge extension edges can drive the bottom plate to vibrate, so that the bottom plate can drive the whole sound board to resonate.

[0008] A plurality of connecting holes for docking with the bottom plate are arranged on the edge extension edge, and the connecting holes are arranged on the edge extension edge.

[0009] The sound board is installed on the mounting surface in the electric piano, and a plurality of elastic buffer blocks are arranged between the extension edge of the sound board and the mounting surface.

[0010] The elastic buffer block is higher than the speaker extension sound board part, so that the sound board is in a suspended state during installation.

[0011] The patent sets up the elastic buffer block to avoid the installation surface of the electric piano from being driven by the sound board vibration, to avoid the interference between the electric piano and the sound board, and to affect the overall tone. Meanwhile, the elastic buffer block can expand the vibration effect of the sound board, and the height of the elastic buffer block should be higher than the extension end of the speaker, so that the sound board is suspended and resonance is more convenient.

[0012] The elastic buffer block and the assembly hole are one-to-one corresponding, which is convenient for installation and limits the position.

[0013] The shape of the sound board adopts a polygon or a circle, and different shapes can be selected according to needs.

[0014] The cover plate is in a long strip plate structure, two side plates are symmetrically installed on the lower end face of the cover plate, the side plates adopt a rectangular ring structure, a bottom plate is installed on the upper opening of the side plates, and the cover plate, the bottom plate and the side plates form a connected double resonance cavity structure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Front view of the patent;

[0016] Figure 2 Bottom view of the patent;

[0017] Figure 3 Structure view of the elastic buffer block;

[0018] Figure 4 Front view of the installation on the door of the electric piano;

[0019] Figure 5 Side view of the installation on the door of the electric piano;

[0020] Figure 6 Front view of the installation in the middle disc of the electric piano;

[0021] Figure 7 Side view of the installation in the middle disc of the electric piano;

[0022] Figure 8 Front view of the installation on the left and right side plates of the electric piano;

[0023] Figure 9 Side view of the installation on the left and right side plates of the electric piano;

[0024] Figure 10 Front view of the installation on the lower door of the electric piano;

[0025] Figure 11 Side view of the installation on the lower door of the electric piano;

[0026] Figure 12 Structural view of the soundboard's one-piece dual resonance chamber structure.

[0027] Diagram: 1. Soundboard, 2. Speaker, 3. Side panel, 4. Cover, 5. Bottom panel, 6. Resonance chamber, 7. Extension, 8. Assembly hole, 9. Edge 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 panels, 16. Electric piano lower door. DETAILED DESCRIPTION

[0028] The implementation method of this patent is as follows Figure 1 —2, including a soundboard 1 and a speaker 2, the soundboard 1 includes a bottom plate 5, side plates 3 and a cover plate 4, at least one circle of side plates 3 is provided on the lower side of the cover plate 4, the bottom plate 5 is installed on the lower end of the side plates 3, a resonance cavity 6 is formed between the side plates 3, the cover plate 4 and the bottom plate 5, the side plates 3, the cover plate 4 and the bottom plate 5 are glued together to form a whole, a mounting hole for mounting the speaker 2 is provided in the middle of the bottom plate 5, and the upper end of the speaker 2 passes through the bottom plate 5 into the resonance cavity 6.

[0029] An extension 7 is provided on the outer side of the lower end of the sound board 1 , and a plurality of assembly holes 8 are provided on the extension.

[0030] A plurality of edge extensions 9 are provided at the lower edge of the loudspeaker 2 , and the edge extensions 9 are placed on the lower end surface of the bottom plate 5 .

[0031] The edge extension 9 is provided with a plurality of connection holes 10 for connecting with the bottom plate 5 .

[0032] like Figure 3 The soundboard 1 is mounted on a mounting surface inside the electric piano 11 , and a plurality of elastic buffer blocks 12 are provided between the extended edge 7 of the soundboard 1 and the mounting surface.

[0033] The elastic buffer block 12 is higher than the portion of the speaker 2 that extends out of the sound board 1 , so that the sound board 1 is in a suspended state during installation.

[0034] The elastic buffer block 12 corresponds to the assembly hole 8 on a one-to-one basis, which facilitates the installation of the elastic buffer block 12 and defines the installation position of the elastic buffer block 12 .

[0035] The soundboard 1 has a polygonal or circular shape.

[0036] The cover plate 4 is a long strip-shaped structure, and two side panels 3 are symmetrically installed on both ends of the lower end surface of the cover plate 4. The side panels 3 adopt a rectangular ring structure, and a bottom panel 5 is installed on the lower opening of the side panel 3. The cover plate 4, the bottom panel 5 and the side panels 3 form a connected double resonance cavity structure.

[0037] Embodiment 1

[0038] The soundboard 1 can be made in different sizes and shapes, such as rectangular, square, diamond, petal, trapezoidal, circular, oval, and regular polygon, etc.

[0039] As shown in Figure 1 and Figure 2 , when the speaker 2 makes sound, the vibration block in the lower part of the speaker 2 drives the diaphragm and the reed to produce electronic sound, while the edge extension 9 of the speaker 2 can drive the bottom plate 5 to vibrate, and the vibration will be transmitted to the entire soundboard 1, causing the soundboard to resonate, producing a sound similar to the original wooden soundboard, and at the same time, the sound produced by the speaker 2 combines in the resonance cavity 6, producing a larger sound after combination, enhancing the echo effect, making the soundboard 1 close to the sound of traditional piano, significantly improving the sound quality, and making the sound of electric piano close to the sound of traditional piano.

[0040] Embodiment 2

[0041] The loudspeaker structure of the present patent can be installed at a suitable position of the electric piano 11 according to needs.

[0042] As shown in Figure 4 and Figure 5 , the device can be installed on the upper door 13 of the electric piano, and the device is symmetrically installed on the inner side of the upper door 13 of the electric piano, which is closest to the performer and is convenient for the performer to intuitively understand the tone and playing situation.

[0043] As shown in Figure 6 and Figure 7 , the device can be installed on the middle plate 14 of the electric piano, and two devices are symmetrically installed on the front end surface of the middle plate 14 of the electric piano, which directly combines the device with the middle plate 14 of the electric piano, and through the device, it is easier to amplify the original tone, reduce the volume of the integral geometry, save space, reduce the occupation of the performer's leg space, and make the performer more comfortable when playing.

[0044] As shown in Figure 8 and Figure 9 , two devices can be installed on the left and right side plates 15 of the electric piano 11, fully utilizing the internal space of the piano, and facilitating piano maintenance, cleaning and teaching use.

[0045] As shown in Figure 10 and Figure 11 , two devices can be installed side by side on the lower door 16 of the electric piano 11, saving the space of the middle plate position of the electric piano, and in the case of a dust cover, the sound effect of the device installed on the lower door is best.

[0046] Embodiment 3

[0047] AsFigure 12 As shown, when the sound board 1 selects the connected double-cavity structure, the cover plate 4 in the sound board 1 selects the long rectangular plate structure, both ends of the lower end face of the cover plate 4 are symmetrically provided with two side plates 3, the side plates 3 are in the rectangular ring structure, a cable outlet hole is formed in the opposite side of the side plate 3, the loudspeaker 2 and the bottom plate 5 are installed first, then the cable of the loudspeaker 2 is led out from the cable outlet hole, then the bottom plate 5 and the lower end of the side plate 3 are docked, the upper part of the loudspeaker 2 is located in the side plate 3, meanwhile, the side plate 3, the cover plate 4 and the bottom plate 5 are glued, finally, the upper end face of the cover plate 4 is engraved and hot stamped to ensure the beautiful appearance.

Claims

1. A sound source device for an electric piano, characterized in that: The invention comprises a sound board (1) and a loudspeaker (2), wherein the sound board (1) comprises a bottom plate (5), a side plate (3) and a cover plate (4), wherein at least one circle of side plates (3) is provided on the lower side of the cover plate (4), and the bottom plate (5) is installed on the lower end of the side plate (3), and a resonance cavity (6) is formed between the side plates (3), the cover plate (4) and the bottom plate (5), and the side plates (3), the cover plate (4) and the bottom plate (5) are glued to form a whole, and a mounting hole for mounting the loudspeaker (2) is provided in the middle of the bottom plate (5), and the upper end of the loudspeaker (2) passes through the bottom plate (5) and enters the resonance cavity (6).

2. The sound source device for an electric piano according to claim 1, characterized in that: An extension (7) is provided on the outer side of the lower end of the sound board (1), and a plurality of assembly holes (8) are provided on the extension (7).

3. The sound source device for an electric piano according to claim 1, characterized in that: A plurality of edge extensions (9) are provided at the lower edge of the loudspeaker (2), and the edge extensions (9) are placed on the lower end surface of the bottom plate (5).

4. The sound source device for an electric piano according to claim 3, characterized in that: The edge extension (9) is provided with a plurality of connection holes (10) for docking with the bottom plate (5).

5. The sound source device for an electric piano according to claim 2, wherein: The soundboard (1) is mounted on a mounting surface inside an electric piano (11), and a plurality of elastic buffer blocks (12) are provided between the extended edge (7) of the soundboard (1) and the mounting surface.

6. The sound source device for an electric piano according to claim 5, characterized in that: The elastic buffer block (12) is higher than the portion of the loudspeaker (2) extending out of the sound board (1).

7. The sound source device for an electric piano according to claim 5, characterized in that: The elastic buffer blocks (12) and the assembly holes (8) correspond one to one.

8. The sound source device for an electric piano according to claim 1, characterized in that: The soundboard (1) has a polygonal or circular shape.

9. The sound source device for an electric piano according to claim 1, characterized in that: The cover plate (4) is in the form of a long strip of plate-like structure. Two side plates (3) are symmetrically mounted on both ends of the lower end surface of the cover plate (4). The side plates (3) are in the form of a rectangular ring structure. A bottom plate (5) is mounted on the lower opening of the side plates (3). The cover plate (4), the bottom plate (5) and the side plates (3) form a connected double resonance cavity structure.

Images