Piano function enhancing device
By introducing an amplifier and a vibration excitation component into the piano, the electronic audio signal is converted into mechanical vibration and transmitted to the soundboard, giving the piano a sound function. This solves the problem of interaction between the piano and electronic devices and enhances the sound effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QINXUN TECHNOLOGY CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-24
AI Technical Summary
Existing pianos struggle to interact effectively with electronic devices and lack audio functionality.
By introducing a power amplifier and a vibration excitation component, the electronic audio signal is converted into mechanical vibration and transmitted to the piano soundboard to produce sound, thus enabling interaction with electronic devices.
The piano can play audio signals from electronic devices, enhancing its functionality and enabling interaction with electronic devices.
Smart Images
Figure CN224164058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of musical instruments, and in particular to a piano function enhancement device. Background Technology
[0002] The piano is a common keyboard musical instrument. Its exterior is typically made of wood, and its internal structure includes a cast iron frame, strings, hammers, and a soundboard. Its sound production principle is based on the vibration and resonance of the strings. When a piano key is pressed, the key drives the hammers through the striking mechanism to strike the strings. Inside the piano are hundreds of strings, each with a different length, thickness, and tension to produce different pitches. When the hammers strike the strings, the strings vibrate, producing sound.
[0003] The vibration of the strings is transmitted through the bridge to the soundboard, a large, thin wooden board that amplifies the string vibrations, making the sound louder and richer. When a key is released, a damper presses down on the string, preventing it from vibrating further and thus stopping the sound.
[0004] Improving the interaction between the piano and other electronic devices is one area of research. Utility Model Content
[0005] The purpose of this invention is to provide a piano function enhancement device to enhance the functions of a piano, give it sound capabilities, and enable interaction with electronic devices.
[0006] This application provides a piano function enhancement device, including a power amplifier and a vibration excitation component; the power amplifier and the vibration excitation component are electrically connected;
[0007] The vibration excitation assembly includes a vibration exciter, a transmission base, and a fixing member. The vibration exciter is fixedly connected to the transmission base, and the fixing member is used to detachably and fixedly connect the transmission base to the ribs of the piano. The transmission base also has an abutting surface for abutting against the soundboard of the piano, and the abutting surface is used to transmit the vibration of the vibration exciter to the soundboard of the piano.
[0008] Furthermore, the vibration excitation assembly has multiple sets, and the vibration exciters in different sets of the vibration excitation assembly are used to generate vibrations in different frequency ranges.
[0009] Furthermore, the vibration excitation assembly comprises three groups: a first vibration excitation assembly, a second vibration excitation assembly, and a third vibration excitation assembly, wherein the frequency range of the vibrations generated by the vibration exciters in the three groups of vibration excitation assemblies increases sequentially.
[0010] Furthermore, the conductive base has a slot for engaging with the ribs of the piano, the fixing member is a screw, and the conductive base is provided with a threaded hole for the screw to extend into the slot, the end of the screw being used to abut against the ribs of the piano.
[0011] Furthermore, there are multiple screws, and correspondingly multiple threaded holes are also provided.
[0012] Furthermore, the conductive base includes a base plate and two sets of support arms arranged at intervals. The slot is formed by the base plate and the support arms. The threaded hole is provided on the support arm. The end face of the support arm facing away from the base plate constitutes the abutment surface.
[0013] Furthermore, each set of outriggers includes one or more outriggers.
[0014] Furthermore, the power amplifier includes a Bluetooth module.
[0015] Furthermore, the vibration exciter and the transmission base are fixedly connected by threaded fasteners or adhesives.
[0016] Furthermore, the conductive base is made of wood.
[0017] Compared with the prior art, the present invention has at least the following beneficial effects:
[0018] The technical solution of this application enhances the piano's functionality by converting electronic audio signals into mechanical vibration energy through the coordinated operation of a power amplifier and a vibration excitation component. Specifically, in use, a conductive base is detachably and securely connected to the piano's ribs using fasteners, with the contact surface of the conductive base resting against the piano's soundboard. The power amplifier receives audio signals sent by electronic devices and converts them into electrical signals, which are then output to the vibration exciter. The vibration exciter converts the electrical signals into mechanical vibrations, which are transmitted to the piano's soundboard through the contact surface of the conductive base, enabling the soundboard to produce sound and giving the piano a sonic function. This technical solution allows the piano to interact with electronic devices, playing electronic audio signals from those devices, thus realizing interaction between the piano and electronic equipment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the piano function enhancement device of this application when used in conjunction with a piano;
[0020] Figure 2 This is a schematic diagram of the structure of the vibration excitation component of one embodiment of the piano function enhancement device of this application when it is fixedly connected to the ribs of a piano;
[0021] Figure 3This is a schematic diagram of the vibration excitation component of one embodiment of the piano function enhancement device of this application.
[0022] Figure label:
[0023] 1. Power amplifier; 11. Bluetooth module; 12. Cables; 13. Power cord;
[0024] 2. Vibration exciter; 21. First vibration excitation assembly; 22. Second vibration excitation assembly; 23. Third vibration excitation assembly;
[0025] 3. Conducting base; 31. Base plate; 32. Support arm; 33. Threaded fasteners;
[0026] 4. Fasteners; 41. Knobs;
[0027] 5. Walls;
[0028] 6. Sound board. Detailed Implementation
[0029] The following description, in conjunction with schematic diagrams, illustrates a preferred embodiment of the present invention. It should be understood that those skilled in the art can modify the present invention as described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the scope of the present invention.
[0030] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] The present invention will be described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0033] The following is in conjunction with the instruction manual appendix. Figures 1 to 3 This paper introduces the piano function enhancement device of this utility model.
[0034] like Figure 1 , Figure 2 and Figure 3 As shown, this application proposes a piano function enhancement device, including a power amplifier 1 and a vibration excitation assembly; the power amplifier 1 and the vibration excitation assembly are electrically connected; the vibration excitation assembly includes a vibration exciter 2, a conductive base 3 and a fixing member 4, the vibration exciter 2 is fixedly connected to the conductive base 3, the fixing member 4 is used to detachably and fixedly connect the conductive base 3 to the ribs 5 of the piano, and the conductive base 3 also has an abutting surface for abutting against the soundboard 6 of the piano, the abutting surface is used to transmit the vibration of the vibration exciter 2 to the soundboard 6 of the piano.
[0035] The amplifier 1 receives audio signals from electronic devices, converts them into electrical signals, and outputs them to the vibration exciter 2 via cable 12. The amplifier 1 can be externally powered via power cord 13. The vibration exciter 2 can be of various types, such as electromagnetic, piezoelectric, or electric. Specifically, the electromagnetic vibration exciter 2 drives the vibrating component to generate mechanical vibration through electromagnetic force, the piezoelectric vibration exciter 2 utilizes the inverse piezoelectric effect of piezoelectric materials to generate vibration, and the electric vibration exciter 2 generates vibration by driving an eccentric wheel with an electric motor.
[0036] The technical solution of this application enhances the piano's functionality by converting electronic audio signals into mechanical vibration energy through the coordinated operation of the power amplifier 1 and the vibration excitation component. Specifically, in use, the transmission base 3 is detachably and fixedly connected to the piano's ribs 5 using the fixing component 4, with the contact surface of the transmission base 3 abutting against the piano's soundboard 6. The power amplifier 1 receives the audio signal sent by the electronic device and converts it into an electrical signal, which is then output to the vibration exciter 2. The vibration exciter 2 converts the electrical signal into mechanical vibration, which is transmitted to the piano's soundboard 6 through the contact surface of the transmission base 3, enabling the soundboard 6 to produce sound and giving the piano a sonic function. This technical solution allows the piano to interact with electronic devices, playing electronic audio signals from the electronic devices, thus realizing interaction between the piano and electronic devices.
[0037] Furthermore, in some embodiments, the vibration excitation assembly has multiple sets, and the vibration exciters 2 in different sets of the vibration excitation assembly are used to generate vibrations in different frequency ranges.
[0038] Each vibration exciter 2 is configured to generate vibrations within a specific frequency range. For example, the first group of vibration exciters 2 can generate low-frequency vibrations, the second group can generate mid-frequency vibrations, and the third group can generate high-frequency vibrations. These vibration exciters 2 can be controlled by different drive signals to ensure that their vibration frequencies match the frequency response range of the piano soundboard 6.
[0039] For example, such as Figure 1 As shown, in one embodiment, there are three sets of vibration excitation components, namely the first vibration excitation component 21, the second vibration excitation component 22 and the third vibration excitation component 23, and the frequency range of the vibration generated by the vibration exciter 2 in the three sets of vibration excitation components increases sequentially.
[0040] The first vibration excitation assembly 21 includes a first vibration exciter, which generates a low-frequency vibration range suitable for exciting the low-frequency response region of the piano soundboard 6. The second vibration excitation assembly 22 includes a second vibration exciter, which generates a moderate-frequency vibration range suitable for exciting the mid-frequency response region of the piano soundboard 6. The third vibration excitation assembly 23 includes a third vibration exciter, which generates a high-frequency vibration range suitable for exciting the high-frequency response region of the piano soundboard 6. This frequency division design allows vibrations of different frequencies to correspond to different frequency response regions of the piano soundboard 6, thereby ensuring that the vibrations generated by the vibration exciter 2 can be effectively transmitted to the soundboard 6, resulting in a wider range of sound frequencies output by the soundboard 6.
[0041] Specifically, the vibration frequency range of the first vibration exciter can be from 20Hz to 200Hz, the vibration frequency range of the second vibration exciter can be from 200Hz to 2000Hz, and the vibration frequency range of the third vibration exciter can be from 2000Hz to 20000Hz. This frequency division design covers the entire frequency response range of the piano soundboard 6, further enhancing the richness and layering of the sound.
[0042] Correspondingly, the power amplifier 1 can process the electronic audio signal and transmit the electronic audio signal of different frequencies to the vibration exciter 2 with different vibration frequency ranges.
[0043] Furthermore, in some embodiments, the conductive base 3 has a slot for engaging with the piano's ribs 5, and the fixing member 4 is a screw. The conductive base 3 is provided with a threaded hole for the screw to extend into the slot, and the end of the screw is used to abut against the piano's ribs 5.
[0044] The slot design allows the transmission base 3 to engage with the piano's ribs 5, achieving initial fixation. The threaded hole allows the screw to extend into the slot via a threaded connection and abut against the ribs 5, further enhancing the connection stability between the transmission base 3 and the ribs 5.
[0045] Specifically, such as Figure 3 As shown, the slot structure may include a base plate 31 and two sets of spaced-apart support arms 32. The support arms 32 and the base plate 31 can be integrally formed or connected separately to reduce vibration loss. The slot is formed by the base plate 31 and the support arms 32, and threaded holes are provided on the support arms 32. The end face of the support arm 32 facing away from the base plate 31 forms the contact surface. Thus, the structural design of the transmission base 3 not only enables a stable connection with the ribs 5, but also ensures that the vibration of the vibration exciter 2 can be effectively transmitted to the soundboard 6 of the piano through the transmission base 3, thereby enhancing the piano's performance.
[0046] The spacing between the base plate 31 and the support arms 32 can be adjusted according to the specific dimensions of the piano ribs 5 to ensure that the slots can be securely engaged with the ribs 5. The number and position of the threaded holes can be designed according to actual needs; for example, multiple threaded holes can be provided on each support arm 32 to enhance the stability of the connection. The end face of the support arm 32 serves as the contact surface, and its shape and size can be optimized according to the contact surface of the piano soundboard 6 to ensure that vibrations can be effectively transmitted.
[0047] The base plate 31 can be made of wood, metal, or high-strength composite materials to provide sufficient support and durability. The support arm 32 can be made of the same material as the base plate 31, or a different material can be selected as needed.
[0048] Preferably, the conductive base 3 is made of wood. Wood has excellent vibration conduction properties, effectively transmitting the vibrations generated by the vibration exciter 2 to the piano's soundboard 6. Furthermore, the wood material is consistent with the piano's ribs 5 and soundboard 6, helping to reduce vibration loss and structural mismatch problems caused by material differences. By using wood to manufacture the conductive base 3, the efficiency and stability of vibration transmission can be ensured, thereby improving the overall performance of the piano enhancement device.
[0049] The choice of wood materials can include, but is not limited to, hardwoods, softwoods, or composite materials. Hardwoods such as oak and maple have high density and strength, making them suitable for the main body of the conductive base 3; softwoods such as pine and fir, although lower in density, have good elasticity and vibration absorption properties, making them suitable for the auxiliary parts of the conductive base 3. Composite materials can further optimize the performance of the conductive base 3 by combining the properties of different types of wood.
[0050] The depth and width of the slot can be precisely designed according to the dimensions of the piano ribs 5 to ensure that the conduction base 3 can be securely fixed to the ribs 5. The threaded hole can be designed as a through hole or a blind hole, depending on the installation method of the screw. The surface of the contact surface can be specially treated, such as by adding anti-slip texture or coating, to enhance the contact with the soundboard 6.
[0051] In a preferred embodiment, there can be multiple screws and multiple threaded holes to further improve the stability of the connection.
[0052] Specifically, the number of screws can be adjusted according to the size of the conductive base 3 and the structure of the piano ribs 5, typically set to two to four. The position and number of threaded holes correspond to the screws, ensuring that each screw is securely fixed to the piano ribs 5. As a preferred embodiment, the screws can be made of stainless steel to improve their durability and corrosion resistance. Furthermore, the inner diameter and depth of the threaded holes can be precisely matched according to the screw dimensions to ensure tightness and stability of the fixation. For easy tightening, a knob 41 is fixedly provided at the protruding end of the screw.
[0053] In some embodiments, each set of support arms 32 includes one or more support arms 32. Specifically, the number of support arms 32 can be adjusted according to actual needs to change the contact area between the contact surface and the soundboard 6.
[0054] For example, as shown in the figure, each set of arms 32 includes only one arm 32. In other embodiments, each set of arms 32 includes two arms 32, so that the arms 32 have a larger contact area with the soundboard 6.
[0055] In some embodiments, the vibration exciter 2 and the conductive base 3 are fixedly connected by threaded fasteners 33 or adhesive. The threaded fasteners 33 can be mechanical fasteners such as bolts or screws, which achieve a fixed connection by screwing them into the threaded holes between the conductive base 3 and the vibration exciter 2. The adhesive can be a chemical adhesive such as epoxy resin or acrylic adhesive, which achieves a fixed connection by applying it to the contact surfaces of the conductive base 3 and the vibration exciter 2. Specifically, the threaded fasteners 33 provide connection strength mechanically, while the adhesive provides connection strength chemically; both ensure a stable and reliable connection between the vibration exciter 2 and the conductive base 3.
[0056] In some embodiments, the power amplifier 1 includes a Bluetooth module 11.
[0057] Introducing a Bluetooth module 11 into amplifier 1 enables the piano enhancement device to wirelessly connect and interact with electronic devices via Bluetooth. Specifically, the Bluetooth module 11 can establish a connection with electronic devices such as smartphones and tablets via the Bluetooth protocol. Users can remotely control or adjust the settings of the piano enhancement device through these electronic devices, or transmit audio files to amplifier 1 via the Bluetooth module 11. As a preferred implementation, the Bluetooth module 11 can support Bluetooth 5.0 or higher to improve the stability and speed of data transmission. Furthermore, the Bluetooth module 11 can also be integrated onto the circuit board of amplifier 1, transmitting signals via an antenna. The wireless connectivity of the Bluetooth module 11 eliminates the need for wired connections, thus improving ease of use and flexibility. Specifically, users can adjust parameters of the piano enhancement device, such as volume and sound effects, in real time via electronic devices without directly operating the device itself.
[0058] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A piano function enhancement device, characterized in that, It includes a power amplifier and a vibration excitation component; the power amplifier and the vibration excitation component are electrically connected. The vibration excitation assembly includes a vibration exciter, a transmission base, and a fixing member. The vibration exciter is fixedly connected to the transmission base, and the fixing member is used to detachably and fixedly connect the transmission base to the ribs of the piano. The transmission base also has an abutting surface for abutting against the soundboard of the piano, and the abutting surface is used to transmit the vibration of the vibration exciter to the soundboard of the piano.
2. The piano function enhancement device according to claim 1, characterized in that, The vibration excitation assembly consists of multiple sets, and the vibration exciters in different sets of the vibration excitation assembly are used to generate vibrations in different frequency ranges.
3. The piano function enhancement device according to claim 2, characterized in that, The vibration excitation components consist of three groups: a first vibration excitation component, a second vibration excitation component, and a third vibration excitation component. The frequency range of the vibrations generated by the vibration exciters in the three groups of vibration excitation components increases sequentially.
4. The piano function enhancement device according to claim 1, characterized in that, The conductive base has a slot for engaging with the ribs of the piano. The fixing element is a screw. The conductive base has a threaded hole for the screw to extend into the slot. The end of the screw is used to abut against the ribs of the piano.
5. The piano function enhancement device according to claim 4, characterized in that, There are multiple screws, and there are also multiple threaded holes.
6. The piano function enhancement device according to claim 4, characterized in that, The conductive base includes a base plate and two sets of support arms arranged at intervals. The slot is formed by the base plate and the support arms. The threaded hole is provided on the support arm. The end face of the support arm opposite to the base plate forms the abutment surface.
7. The piano function enhancement device according to claim 6, characterized in that, Each outrigger group includes one or more outriggers.
8. The piano function enhancement device according to claim 1, characterized in that, The power amplifier has a Bluetooth module.
9. The piano function enhancement device according to claim 1, characterized in that, The vibration exciter and the transmission base are fixedly connected by threaded fasteners or adhesives.
10. The piano function enhancement device according to claim 1, characterized in that, The conductive base is made of wood.