Electric seven-stringed plucked instrument

Abstract

The utility model relates to the technical field of national musical instruments, in particular to an electric guqin, which comprises a guqin panel, a plurality of strings are arranged at the top of the guqin panel, and a plurality of badge positions corresponding to the strings are arranged along the length direction of the guqin panel; the bottom plate is arranged at the bottom of the guitar panel, a guitar belly is arranged between the bottom plate and the guitar panel, and the bottom plate is provided with a run-through dragon pond and a run-through phoenix pond corresponding to the guitar belly; a piezoelectric pickup sheet, wherein the piezoelectric pickup sheet is fixedly arranged inside the guitar belly; and the pickup interface is fixedly arranged at the bottom of the bottom plate and is electrically connected with the piezoelectric pickup sheet. And a plurality of piezoelectric pickup sheets are arranged, are respectively fixed at the bottom of the piano panel and correspond to the hui positions. Through acoustic partition, electromechanical coupling optimization and multi-channel processing technologies, the seven-stringed plucked instrument physically solves the core problems of tone distortion, insufficient dynamic range and the like in sound amplification of the seven-stringed plucked instrument, and has high fidelity and performance adaptability.

Description

Technical Field

[0001] This utility model relates to the field of traditional musical instrument technology, specifically to an electric guqin. Background Technology

[0002] The guqin, a traditional Chinese musical instrument, possesses a clear and melodious tone, but it faces significant amplification challenges in modern performance environments. The traditional guqin produces a weak sound, easily masked by other instruments, especially in ensembles or large venues. Current common amplification solutions rely on external microphones, but this method is susceptible to environmental noise interference. Furthermore, due to the mismatch between the microphone and the guqin's resonance characteristics, the amplified sound suffers from distortion, loss of low frequencies, or harsh high frequencies, thus losing the guqin's original charm.

[0003] To address these issues, some technologies have attempted to install electromagnetic pickups or contact microphones inside the instrument body. However, problems such as insufficient signal sensitivity, narrow frequency response range, or damage to the instrument's structure still exist. Furthermore, the vibration characteristics of different sections of the guqin (such as the area between the "dragon's roar" and the first fret) vary significantly, making it difficult for a single pickup to capture the overall tone evenly, further limiting the sound reproduction effect. Utility Model Content

[0004] This invention provides an electric guqin that solves core problems such as timbre distortion and insufficient dynamic range in guqin amplification at the physical level through acoustic zoning, electromechanical coupling optimization and multi-channel processing technology, while also possessing high fidelity and performance adaptability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric guqin, comprising: a soundboard, on the top of which are provided a plurality of strings and along its length corresponding to the strings are a plurality of frets; a base plate, which is disposed at the bottom of the soundboard and has a belly between it and the soundboard, the base plate having a through-hole (dragon pool) and a phoenix pool (phoenix pond) corresponding to the belly; a piezoelectric pickup plate, which is fixedly disposed inside the belly; and a pickup interface, which is fixedly disposed at the bottom of the base plate and electrically connected to the piezoelectric pickup plate.

[0006] Preferably, there are multiple piezoelectric pickups, each fixed to the bottom of the piano soundboard, corresponding to each of the fret positions.

[0007] Preferably, the bottom of the piano panel is provided with a circular groove corresponding to each of the fret positions; each of the piezoelectric pickup pieces is embedded in the center of the corresponding circular groove.

[0008] Preferably, each of the circular grooves is provided with a step in the circumferential direction; each of the piezoelectric pickup pieces abuts against the step through its four edges.

[0009] Preferably, the pickup interface is configured in multiple ways and electrically connected to each corresponding piezoelectric pickup piece; it also includes a mixing console, which is electrically connected to the corresponding piezoelectric pickup piece through the pickup interface.

[0010] The beneficial effects of this invention are as follows: By embedding piezoelectric pickups in specific vibration areas of the guqin's soundboard, the mechanical vibration signals between the strings and the soundboard are directly collected, avoiding environmental noise interference. The high impedance characteristics of the piezoelectric pickups are highly compatible with the low-frequency vibrations of the guqin, preserving the original timbre and overtone layers. Furthermore, by configuring multiple piezoelectric pickups to cover the guqin body in zones and connecting them to a mixing console to independently adjust the gain, frequency response, and phase parameters of each zone, precise timbre control for different playing techniques can be achieved, ultimately resulting in a high-fidelity, customizable electroacoustic solution for the guqin. This technology not only overcomes the timbre degradation defects of traditional amplification methods but also provides more flexible technical support for the modern performance, recording, and stage applications of the guqin. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0014] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 4 This is a partial structural cross-sectional view of the present invention.

[0016] In the diagram: 1. Top plate; 2. Strings; 3. Fretboard; 4. Bottom plate; 5. Sound chamber; 6. Sound hole; 7. Piezo pickup; 8. Pickup interface; 9. Round slot; 10. Step; 11. Mixing console. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an electric guqin includes: a soundboard 1, with multiple strings 2 on the top and multiple frets 3 corresponding to the strings 2 along its length; a base plate 4, located at the bottom of the soundboard 1, with a hollow soundbox between the base plate 4 and the soundboard 1, and a through-hole pool 5 and a phoenix pool 6 corresponding to the soundbox; a piezoelectric pickup 7, fixedly located inside the soundbox; and a pickup interface 8, fixedly located at the bottom of the base plate and electrically connected to the piezoelectric pickup 7.

[0019] This technical solution addresses key shortcomings of traditional amplification methods by innovatively integrating a piezoelectric pickup plate 7 with the structure of the guqin. The piezoelectric pickup plate 7 is fixed inside the soundbox between the top plate 1 and the bottom plate 4, directly contacting the vibrating surface of the instrument. When the string 2 vibrates and is conducted through the instrument, the piezoelectric material converts the mechanical vibration into an electrical signal, which is output to an external amplifier through the pickup interface 8. When the piezoelectric pickup plate 7 is placed inside the soundbox near the dragon pool 5 and phoenix pond 6 areas, it can capture the complex vibrations generated by the overall resonance of the instrument, rather than the vibrations of a single string or a localized area, thus more closely resembling the natural sound characteristics of the guqin. Furthermore, the installation of the piezoelectric pickup plate 7 can be achieved without damaging the original structure of the instrument, thus maintaining the integrity of the traditional guqin craftsmanship. In addition, compared to existing external microphone solutions, the built-in piezoelectric pickup plate 7 avoids the intrusion of environmental noise, making it particularly suitable for noisy stages or ensemble performances with other instruments.

[0020] Because traditional microphones easily lose the deep, resonant tone of the guqin, this solution uses a piezoelectric pickup 7 as the sampling component. This pickup is sensitive to low-frequency vibrations and simultaneously captures mid-to-high-frequency overtones through the resonance of the instrument's body, reducing the risk of high-frequency distortion. When the piezoelectric pickup 7 is positioned between the Longyin and Yihui (first fret), it can synthesize the vibration characteristics of each fret, avoiding frequency band loss caused by a single pickup point. Furthermore, the sampling signal from the piezoelectric pickup 7 comes directly from the vibration of the instrument body, resulting in a stable output level that is less affected by the player's movement or the acoustic conditions of the venue. This preserves the guqin's unique "relaxed, deep, and expansive" tone, with a rich low-frequency response and clear high-frequency response, reducing electronic distortion and bringing it closer to the original sound. The pickup interface 8 can be standardized, such as a 6.5mm jack, to be compatible with existing amplification systems.

[0021] Multiple piezoelectric pickups 7 are provided and fixed to the bottom of the piano soundboard 1, corresponding to each of the fret positions 3.

[0022] Because the vibration characteristics of the three sections at different fret positions on the guqin differ significantly, a multi-pickup layout can specifically capture the vibration signals of each area, avoiding frequency response imbalances caused by the limited placement of a single pickup, such as low-frequency loss or high-frequency overload, thus achieving balanced coverage of the entire guqin's tonal range. Furthermore, piezoelectric pickups directly couple to the vibration of the instrument body, completely isolating ambient noise compared to external microphones. The collaborative work of multiple pickups can also reduce the background noise of a single sensor through signal superposition, resulting in a purer audio signal output.

[0023] The bottom of the soundboard 1 is provided with a circular groove 9 corresponding to each of the fret positions 3; each of the piezoelectric pickups 7 is embedded in the center of the corresponding circular groove 9. Each of the circular grooves 9 is provided with a step 10 around its circumference; each of the piezoelectric pickups 7 abuts against the step 10 through its four edges.

[0024] The piezoelectric element is embedded in the circular groove 9 at the bottom of the soundboard 1 corresponding to the fret 3, and its edge is fixed by the stepped structure 10. This design not only ensures a close fit to the vibrating surface of the instrument, improving sensitivity, but also avoids acoustic damping caused by rigid contact. This design preserves the resonance characteristics of the instrument to the greatest extent and reduces tonal distortion.

[0025] The pickup interface 8 is configured in multiple ways and is electrically connected to each of the corresponding piezoelectric pickup pieces 7; it also includes a mixing console 11, which is electrically connected to the corresponding piezoelectric pickup piece 7 through the pickup interface 8.

[0026] With this setup, each piezoelectric pickup 7 is connected to an independent pickup interface 8 and then to a mixing console 11, allowing for individual processing of the signals at each position 3, such as gain and EQ adjustments. For example, this can enhance the low-frequency response in the gingival region or suppress the feedback tendency in the high-frequency region, thereby dynamically matching the acoustic requirements of different performance environments.

[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An electric guqin, characterized in that, include: The soundboard (1) has multiple strings (2) on its top and multiple frets (3) along its length corresponding to the strings (2). The base plate (4) is located at the bottom of the soundboard (1) and the soundboard (1) is provided with a belly. The base plate (4) is provided with a through-hole (5) and a phoenix pond (6) corresponding to the belly. A piezoelectric pickup (7) is fixedly disposed inside the body of the instrument; The pickup interface (8) is fixedly disposed at the bottom of the base plate and electrically connected to the piezoelectric pickup piece (7).

2. The electric guqin according to claim 1, characterized in that: Multiple piezoelectric pickups (7) are provided and fixed to the bottom of the piano soundboard (1) respectively, corresponding to each of the fret positions (3).

3. An electric guqin according to claim 2, characterized in that: The bottom of the piano panel (1) is provided with a circular groove (9) corresponding to each of the fret positions (3); each of the piezoelectric pickup pieces (7) is embedded in the middle of the corresponding circular groove (9).

4. An electric guqin according to claim 3, characterized in that: Each of the circular grooves (9) is provided with a step (10) around its circumference; each of the piezoelectric pickup pieces (7) abuts against the step (10) through its four edges.

5. An electric guqin according to claim 2, characterized in that: The pickup interface (8) is configured in multiple ways and is electrically connected to each of the corresponding piezoelectric pickup pieces (7); it also includes a mixing console (11), which is electrically connected to the corresponding piezoelectric pickup piece (7) through the pickup interface (8).

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