CN111951763A - Full-band high-tone-quality Ruan with sound beam and sound tunnel - Google Patents

Abstract

A full-band high-tone-quality Ruan with a tone beam and a tone tunnel comprises a resonance box, wherein the resonance box comprises a panel, a bottom plate and side plates; the lower surface of the panel is provided with a first groove and a second groove which are crossed on the lower surface of the panel and are communicated with each other, and the lower surface of the panel is equally divided into four upper resonance areas; the middle part of the lower surface of the panel is fixedly provided with an upper sound beam assembly which comprises a plurality of first strip-shaped sound beam components which are arranged on two sides of the first groove and two sides of the second groove in pairs; the first groove and the second groove form an upper transverse sound tunnel and an upper longitudinal sound tunnel on the lower surface of the panel respectively. The invention changes the panel of the Ruan from the original free vibration mode to the present standard vibration mode, and solves the problems that the Ruan treble area can not be bright and the bass area can not be full and smooth from the angles of vibration, resonance and sound production. Practice proves that the improved design scheme has outstanding substantive features and remarkable technical progress.

Description

Full-band high-tone-quality Ruan with sound beam and sound tunnel

Technical Field

The invention relates to plucked musical instruments, in particular to a full-band high-tone-quality Ruan with a tone beam and a tone tunnel. Said raney includes treble raney, xiao raney, zhong raney, da raney and bass raney.

Background

Raney is a traditional chinese musical instrument and is called raney salt for short. The xi jin Ruan is good at playing the instrument, so the name is obtained. The four strings are provided with columns and are shaped like a moon piano. It is widely spread among people starting from the Tang Dynasty and the Meta Dynasty, becomes a favorite plucked instrument, and has wide range of sound and rich expressive force.

As shown in fig. 1 and 2, the ruan is composed of a headstock, a neck, a body, a peg, a jaw, a fret, a bridge, strings and the like. Wherein, the body is a oblate resonance box 20 which is formed by gluing a panel 21, a bottom plate 22 and a frame plate 23. The panel 21 is glued with a musical instrument and is provided with a sound outlet 24. There are 4 tuning pegs, and strings are usually wire strings, casing strings or metal strings.

The range of a raney is typically four and a half octaves, with the high range occupying about one quarter of the range of the raney, the mid range occupying about one half of the range of the raney, and the low range occupying about one quarter of the range of the raney. The current raney is limited by the design of the traditional sound beam, and the common problems are that: the timbre of the high-tone area and the low-tone area is not good, and the proper timbre effect of the Ruan is not exerted. The specific expression is that the high pitch area is not bright, and the low pitch area is not thick and mellow. The reason for this is that the conventional resonance box of the ruan cannot satisfy a good wide-frequency vibration from the high-pitch range to the low-pitch range, i.e., cannot simultaneously accommodate a wide-frequency variation resonance and vibration in the high-pitch range, the middle-pitch range and the low-pitch range. Further research shows that the factors influencing the broadband vibration in the resonance box are more, and the factors are mainly the design problems of the traditional sound beam except for the panel and the bottom plate. The beam 25 of the conventional resonance box 20 is not designed reasonably (as shown in fig. 3 and 4), which is not favorable for the resonance box 20 to exert good sound wave resonance and vibration from the high-pitch area to the low-pitch area. For example, the sound beam 25 is fixed to the bottom surface of the face plate 21 in the shape of a "chevron" in the resonance box 20, and does not exert a good acoustic effect.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

Disclosure of Invention

The invention aims to provide a full-band high-tone-quality Ruan with a tone beam and a tone tunnel.

In order to achieve the purpose, the invention adopts the technical scheme that:

a full-band high-tone-quality Ruan with a tone beam and a tone tunnel comprises a resonance box, wherein the resonance box comprises a panel, a bottom plate and side plates;

the lower surface of the panel is provided with a first groove and a second groove, the first groove and the second groove are crossed on the lower surface of the panel and are communicated with each other, the crossed points are positioned in the center of the panel, and the lower surface of the panel is further divided into four upper resonance areas;

an upper sound beam assembly is fixedly arranged in the middle of the lower surface of the panel and comprises a plurality of first strip-shaped sound beam components which are arranged on two sides of the first groove and two sides of the second groove in pairs;

the first groove and the second groove form an upper transverse sound tunnel and an upper longitudinal sound tunnel on the lower surface of the panel respectively.

The relevant content in the above technical solution is explained as follows:

1. in the scheme, a third groove and a fourth groove are arranged on the upper surface of the bottom plate, the third groove and the fourth groove are crossed on the upper surface of the bottom plate and are communicated with each other, the crossed points are positioned in the center of the bottom plate, and the upper surface of the bottom plate is further divided into four lower resonance areas;

a lower sound beam assembly is fixedly arranged in the middle of the upper surface of the bottom plate and comprises a plurality of second strip-shaped sound beam components, and the second strip-shaped sound beam components are arranged on two sides of the third groove and two sides of the fourth groove in pairs;

the third groove and the fourth groove form a lower transverse sound tunnel and a lower longitudinal sound tunnel on the upper surface of the bottom plate respectively.

2. In the above-mentioned solution, the first grooves and the second grooves are crossed and communicated with each other on the lower surface of the panel, and the third grooves and the fourth grooves are crossed and communicated with each other on the upper surface of the bottom plate, which is helpful for rapidly transmitting the vibration of the strings to the periphery of the panel and the bottom plate through the cross sound tunnel (i.e. the sound tunnel) formed by the grooves.

3. In the above scheme, the intersection of the first groove and the second groove is located in the center of the panel, and the intersection of the third groove and the fourth groove is located in the center of the bottom plate, so that the design can improve the tone quality and the tone color of the resonance box.

4. In the above scheme, an upper connecting beam is arranged between two adjacent first strip-shaped sound beam components, and the upper connecting beam spans over the first groove and the second groove to form the upper sound beam assembly in a groined shape; and each upper connecting beam is positioned in the central area of the lower surface of the panel. By this design, the central area of the panel can be reinforced.

5. In the above scheme, a lower connecting beam is arranged between two adjacent second strip-shaped sound beam components, and the lower connecting beam spans over the third groove and the fourth groove to form the lower sound beam assembly in a groined shape; and each of the lower connecting beams is located in a central region of the upper surface of the base plate. By this design, the central area of the base plate can be reinforced.

6. In the above scheme, the panel and the bottom plate are divided from the sounding frequency band and respectively comprise a peripheral high-pitch region, a middle-pitch region and a central low-pitch region; the wall thicknesses of the panel and the bottom plate are gradually increased from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area; the upper sound beam assembly is located in a bass zone of the panel, and the lower sound beam assembly is located in a bass zone of the bottom plate.

By the design, the thicker bass region is arranged close to the center, so that low-frequency vibration with lower frequency and larger amplitude can generate more muddy and smooth bass in the bass regions of the panel and the bottom plate; through setting up thinner high pitch district in the position of keeping away from the center, can make the frequency higher, the less high-frequency vibration of amplitude send more penetrating, bright high pitch at the high pitch district of panel, bottom plate, and then make ruan all obtain effective promotion at tone quality, the tone quality that full frequency channel produced.

7. In the above scheme, the upper sound beam assembly and the lower sound beam assembly are arranged in an up-down direction in an alignment manner.

8. In the above scheme, the inner end thickness of the upper sound beam assembly and the inner end thickness of the lower sound beam assembly are both larger than the outer end thickness. By means of the design, the central areas of the panel and the bottom plate can be reinforced.

9. In the above scheme, the first groove, the second groove, the third groove and the fourth groove are arc grooves, so that the thickness of the panel and the bottom plate is reduced as much as possible, and resonance and vibration of the panel and the bottom plate are prevented from being influenced.

10. In the above solution, the lengths of the first trench and the second trench are both smaller than the width of the panel, and the lengths of the third trench and the fourth trench are both smaller than the width of the bottom plate;

smooth transition surfaces are arranged between the outer ends of the first groove and the second groove and the lower surface of the panel; smooth transition surfaces are arranged between the outer ends of the third groove and the fourth groove and the upper surface of the bottom plate.

The working principle and the advantages of the invention are as follows:

the invention relates to a full-band high-tone-quality Ruan with a tone beam and a tone tunnel, which comprises a resonance box, wherein the resonance box comprises a panel, a bottom plate and side plates; the lower surface of the panel is provided with a first groove and a second groove which are crossed on the lower surface of the panel and are communicated with each other, and the lower surface of the panel is equally divided into four upper resonance areas; the middle part of the lower surface of the panel is fixedly provided with an upper sound beam assembly which comprises a plurality of first strip-shaped sound beam components which are arranged on two sides of the first groove and two sides of the second groove in pairs; the first groove and the second groove form an upper transverse sound tunnel and an upper longitudinal sound tunnel on the lower surface of the panel respectively.

Compared with the prior art, the invention improves the panel design of the prior raney, particularly the raney, in order to solve the problem that the prior raney can not give consideration to both high, middle and low tone regions and has good resonance tone. The concrete aspects are as follows: firstly, erecting an upper sound beam assembly on a panel; secondly, a cross-shaped groove is formed in the panel, so that a cross-shaped sound tunnel is formed in the panel.

Aiming at the problems that the prior Ruan cannot shine in the high-pitched area and the low-pitched area is not perfectly round, the invention deeply discusses and researches the design and the sounding mechanism of the Ruan and finds out the main reason that the tone quality of the prior Ruan high-pitched area and the low-pitched area is not good because of the unreasonable design of the panel. Accordingly, the inventor breaks through the restriction of former Ruan composition design, and greatly provides an improved design scheme of the invention, which changes the panel from the former free vibration mode to the current standard vibration mode, and solves the problems that the Ruan high range cannot be bright and the low range is not full and smooth from the angles of vibration, resonance and sound production.

Due to the application of the technical scheme, compared with the prior raney, the invention has the following advantages and effects:

1. the upper sound beam component is arranged on the lower surface of the panel, and because bass has large amplitude and low frequency relative to treble, bass resonance is concentrated in the central area of the panel, treble resonance is concentrated in the peripheral area of the panel, the strength of the central area of the panel is enhanced, and the upper sound beam component plays an important role in improving the tone color and tone quality of the bass area. The thickness of the panel is a thickness gradually changing structure with thick central area and thin periphery, so that the strength of the central area of the panel is enhanced, the thickness difference between the central area and the peripheral edge area of the panel is relatively changed, and the panel plays an important role in improving the tone color and tone quality of a high-pitch area.

The same design concept is also applicable to the improvement of the bottom plate, namely, the tone and the tone quality of the raney can be improved by arranging the lower sound beam component on the bottom plate.

2. The cross-shaped groove is formed in the lower surface of the panel, the cross-shaped sound tunnel is actually formed in the lower surface of the panel, vibration is collected by the center of the panel and is rapidly transmitted to the peripheral edge of the panel through the cross-shaped sound tunnel (namely a sound tunnel), and therefore the cross-shaped groove plays a key role in improving the tone and tone quality of a bass region and a treble region.

The same design concept is also applicable to the improvement of the bottom plate, namely, the cross-shaped grooves are arranged on the bottom plate to play an auxiliary role in improving the timbre and the tone quality of the Ruan.

3. According to the invention, through the design of the upper sound beam assembly and the cross-shaped groove, four resonance areas are equally divided on the panel. When the stringed instrument is played on a raney, the vibration of the strings is transmitted to the central area of the panel, then transmitted to each resonance area through the sound tunnel, and resonance and vibration are generated, thereby amplifying the string sound into resonance sound of the panel. The improved front Ruan can only produce four sound wave volume when playing, namely in the resonant cavity, the panel corresponds the region and is a resonant region, the region that the bottom plate corresponds is a resonant region, every resonant region produces a sound wave volume, plus a string wave volume, plus a percussion wave volume, totally four sound wave volumes. The improved Ruan of the invention can generate seven sound wave quantities when playing, wherein, four resonance areas of the panel generate four sound wave quantities, one sound wave quantity of the bottom plate, one string wave quantity and one percussion wave quantity are added, and seven sound wave quantities are counted.

If the bottom plate is also provided with the cross-shaped grooves, four resonance areas are equally divided on the bottom plate, so that ten sound wave quantities can be generated during the improved Raney playing of the invention, wherein four resonance areas of the panel generate four sound wave quantities, four resonance areas of the bottom plate generate four sound wave quantities, one sound wave quantity is added, and one percussion wave quantity is added, so that the total ten sound wave quantities are calculated.

The sound wave quantity, i.e. the number of sound waves, for a particular stringed instrument of a resonance box mainly depends on the number of resonance areas in the resonance box, besides one string wave quantity and one percussion wave quantity, and usually, the instrument generates one sound wave quantity per resonance area during playing, and how many resonance areas generate how many sound wave quantities. In addition, the sound volume directly affects the timbre, penetration and volume of the instrument. Therefore, the design of the invention can obviously improve the timbre of the high-tone area and the low-tone area and increase the penetrating power of the high-tone area and the low-tone area.

4. The grooves are arc-shaped grooves, so that the thickness of the panel can be reduced as much as possible, and the resonance and vibration of the panel are prevented from being influenced.

Drawings

Fig. 1 is a schematic external view of a prior art raney (front side);

FIG. 2 is a schematic external view of a conventional Rana (side view);

fig. 3 is a schematic view of the bottom structure of a prior art raney panel;

FIG. 4 is a bottom view of FIG. 3;

fig. 5 is a schematic structural view of a raney panel according to an embodiment of the invention;

FIG. 6 is a bottom view of FIG. 5;

fig. 7 is a schematic structural view of a raney base plate according to an embodiment of the present invention;

fig. 8 is a bottom view of fig. 7.

In the above drawings: 1. a panel; 1 a. upper resonance region; 2. a base plate; lower resonance region; 4. an upper sound beam assembly; 4a, a first strip-shaped sound beam member; 4b, upper connecting beams; 5. a bottom sound beam assembly; 5a, a second strip-shaped sound beam component; 5b, lower connecting beams; 6. a first trench; 7. a second trench; 9. a third trench; 10. a fourth trench; 20. a body; 21. a panel; 22. a base plate; 23. a frame plate; 24. a sound outlet hole; 25. and a sound beam.

Detailed Description

The invention is further described with reference to the following figures and examples:

example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

The terms "first," "second," "third," "fourth," and the like as used herein do not denote any order or importance, nor do they limit the present disclosure, but rather are used to distinguish one element from another element or operation described in the same technical language.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

The terms "upper" and "lower" used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the protection schemes and the actual implementation directions.

See that fig. 5~8 show, full band high tone quality ruan of voiced sound roof beam and sound tunnel, including the resonant tank, this resonant tank includes panel 1, bottom plate 2 and curb plate.

The lower surface of the panel 1 is provided with a first groove 6 and a second groove 7, the first groove 6 and the second groove 7 are crossed on the lower surface of the panel 1 and are communicated with each other, the crossed points are positioned in the center of the panel 1, and the lower surface of the panel 1 is further equally divided into four upper resonance areas 1 a.

The middle part of the lower surface of the panel 1 is fixedly provided with an upper sound beam assembly 4, the upper sound beam assembly 4 comprises a plurality of first strip-shaped sound beam components 4a, and the first strip-shaped sound beam components 4a are arranged on two sides of the first groove 6 and two sides of the second groove 7 in pairs.

The first groove 6 and the second groove 7 form an upper transverse sound tunnel and an upper longitudinal sound tunnel on the lower surface of the panel 1 respectively.

The upper surface of the bottom plate 2 is provided with a third groove 9 and a fourth groove 10, the third groove 9 and the fourth groove 10 are crossed and communicated with each other on the upper surface of the bottom plate 2, the crossed points are located at the center of the bottom plate 2, and the upper surface of the bottom plate 2 is further equally divided into four lower resonance areas 2 a.

The middle part of the upper surface of the bottom plate 2 is fixedly provided with a lower sound beam assembly 5, the lower sound beam assembly 5 comprises a plurality of second strip-shaped sound beam components 5a, and the second strip-shaped sound beam components 5a are arranged on two sides of the third groove 9 and two sides of the fourth groove 10 in pairs.

The third groove 9 and the fourth groove 10 form a lower transverse sound tunnel and a lower longitudinal sound tunnel on the upper surface of the bottom plate 2, respectively.

Preferably, an upper connecting beam 4b is arranged between two adjacent first strip-shaped sound beam components 4a, and the upper connecting beam 4b spans over the first groove 6 and the second groove 7 to form the upper sound beam component 4 in a groined shape; and each of the upper connecting beams 4b is located at a central region of the lower surface of the panel 1. Four upper connecting beams 4b form a square reinforcing structure, so that the bass zone in the center of the panel 1 can be further reinforced, and the tone quality of the Ruan bass zone can be further improved.

Preferably, a lower connecting beam 5b is arranged between two adjacent second strip-shaped sound beam members 5a, and the lower connecting beam 5b spans over the third groove 9 and the fourth groove 10 to form the lower sound beam assembly 5 in a groined shape; and each of the lower connecting beams 5b is located at a central region of the upper surface of the base plate 2. Four lower connecting beams 5b form a square reinforcing structure, so that the bass zone at the center of the bottom plate 2 can be further reinforced, and the tone quality of the Ruan bass zone can be further improved.

The upper sound beam assembly 4 and the lower sound beam assembly 5 are arranged in a contraposition mode in the vertical direction.

Preferably, the panel 1 and the bottom plate 2 are distinguished from each other by a sound frequency band and each include a peripheral high-pitched region, a middle-pitched region and a central low-pitched region; the wall thicknesses of the panel 1 and the bottom plate 2 are gradually increased from outside to inside, the wall thickness of a bass region is larger than that of a midrange region, and the wall thickness of the midrange region is larger than that of a treble region. By the design, the thicker bass region is arranged at a position close to the center, so that low-frequency vibration with lower frequency and larger amplitude can generate more muddy and smooth bass in the bass regions of the panel 1 and the bottom plate 2; by arranging the thin high pitch range at a position far from the center, high-frequency vibration with high frequency and small amplitude can generate more transparent and bright high pitch in the high pitch range of the panel 1 and the bottom plate 2. The upper sound beam assembly 4 and the lower sound beam assembly 5 are both positioned in a bass region, and the load of the middle areas of the panel 1 and the bottom plate 2 can be further improved.

Preferably, the inner end thickness of the upper sound beam assembly 4 and the inner end thickness of the lower sound beam assembly 5 are both larger than the outer end thickness. With this design, the central regions of the panel 1 and the bottom plate 2 can be reinforced.

Preferably, the first groove 6, the second groove 7, the third groove 9 and the fourth groove 10 are all arc-shaped grooves. Can make panel 1, bottom plate 2 minimize the thickness sudden change in thickness, avoid influencing the sympathetic response and the vibration of panel 1, bottom plate 2.

Wherein, the lengths of the first trench 6 and the second trench 7 are both smaller than the width of the panel 1, and the lengths of the third trench 9 and the fourth trench 10 are both smaller than the width of the bottom plate 2; smooth transition surfaces are arranged between the outer ends of the first groove 6 and the second groove 7 and the lower surface of the panel 1, so that vibration is transmitted to the periphery of the panel 1 more uniformly; smooth transition surfaces are arranged between the outer ends of the third and fourth grooves 9 and 10 and the upper surface of the bottom plate 2, so that the vibration is transmitted to the periphery of the bottom plate 2 more uniformly.

Other embodiments and structural variations of the present invention are described below:

1. in the above embodiment, although the embodiment is given with respect to the resonance box of the large raney, the present invention is not limited to this, and may be a high treble raney, a small raney, a medium raney, a large raney, a low treble raney, and the like. As would be readily understood and accepted by those skilled in the art. The illustrated raney is for illustrative purposes only, and the structure is not intended to limit the scope of the present invention, and other raney structures of similar structure should be included in the scope of the present invention if they employ the technical features of the present invention.

2. In the above embodiments, the number of the upper sound beam assemblies 4 and the lower sound beam assemblies 5 is not limited to one set, but may be multiple sets of parallel or other designs that help to reinforce the load in the middle of the panel 1 and the bottom plate 2, which is easily understood and accepted by those skilled in the art.

3. In the above embodiments, the first bar-shaped sound beam member 4a or the second bar-shaped sound beam member 5a may be straight bar-shaped as shown in the figure, and two of them are combined at 90 degrees and are disposed at two sides of the groove in pairs.

Alternatively, the first strip-shaped sound beam member 4a or the second strip-shaped sound beam member 5a may have a radian and include two straight edges, and the straight edges of two adjacent strip-shaped sound beam members are arranged on two sides of the groove in pairs.

4. In the above embodiments, the first groove 6, the second groove 7, the third groove 9 and the fourth groove 10 are all arc-shaped grooves. However, the present invention is not limited thereto, and the grooves may be designed in other shapes, such as a V-shape, a U-shape, a W-shape, and other concave structures. As would be readily understood and accepted by those skilled in the art.

5. In the above embodiment, the upper sound beam assembly 4 and the lower sound beam assembly 5 are arranged in correspondence with each other in the up-down direction as viewed from the cross section of the resonance box (see fig. 3). However, the present invention is not limited to this, and may be arranged out of alignment, specifically, may be determined depending on the tone color and tone quality of the resonance box. As would be readily understood and accepted by those skilled in the art.

6. In the above embodiment, the upper sound beam assembly 4 and the lower sound beam assembly 5 are the same in shape and size. However, the present invention is not limited thereto, and the upper sound beam assembly 4 and the lower sound beam assembly 5 may be different in shape and size. The sound quality can be determined according to the tone color and tone quality of the resonance box. As would be readily understood and accepted by those skilled in the art.

The invention aims at the problems that the prior Ruan high-pitch area can not be brightened and the low-pitch area is not perfectly round, carries out deep discussion and research on the design and the sounding mechanism of the Ruan, and finds out the main reason that the tone quality of the prior Ruan high-pitch area and the low-pitch area is not good because of the unreasonable design of the panel and the bottom plate. Accordingly, the inventor breaks through the restriction of former Ruan composition design, and provides the improved design scheme of the invention, the improved design scheme changes the panel and the bottom plate from the former free vibration mode to the current standard vibration mode, and solves the problems that the Ruan high range cannot be bright and the low range is not full and smooth from the angles of vibration, resonance and sound production.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a full frequency channel high tone quality ruan of voiced sound roof beam and sound tunnel which characterized in that:

the acoustic resonator comprises a resonator, wherein the resonator comprises a panel (1), a bottom plate (2) and side plates;

a first groove (6) and a second groove (7) are arranged on the lower surface of the panel (1), the first groove (6) and the second groove (7) are crossed on the lower surface of the panel (1) and are communicated with each other, the cross point is positioned in the center of the panel (1), and the lower surface of the panel (1) is further equally divided into four upper resonance areas (1 a);

an upper sound beam assembly (4) is fixedly arranged in the middle of the lower surface of the panel (1), the upper sound beam assembly (4) comprises a plurality of first strip-shaped sound beam components (4 a), and the first strip-shaped sound beam components (4 a) are arranged on two sides of the first groove (6) and two sides of the second groove (7) in pairs;

the first groove (6) and the second groove (7) form an upper transverse sound tunnel and an upper longitudinal sound tunnel on the lower surface of the panel (1) respectively.

2. The full-band high-quality raney according to claim 1, characterized in that: a third groove (9) and a fourth groove (10) are formed in the upper surface of the bottom plate (2), the third groove (9) and the fourth groove (10) are crossed and communicated with each other on the upper surface of the bottom plate (2), the crossed points are located in the center of the bottom plate (2), and then the upper surface of the bottom plate (2) is equally divided into four lower resonance areas (2 a);

a lower sound beam assembly (5) is fixedly arranged in the middle of the upper surface of the bottom plate (2), the lower sound beam assembly (5) comprises a plurality of second strip-shaped sound beam components (5 a), and the second strip-shaped sound beam components (5 a) are arranged on two sides of the third groove (9) and two sides of the fourth groove (10) in pairs;

and the third groove (9) and the fourth groove (10) form a lower transverse sound tunnel and a lower longitudinal sound tunnel on the upper surface of the bottom plate (2) respectively.

3. The full-band high-quality raney according to claim 2, characterized in that: the upper sound beam assembly (4) and the lower sound beam assembly (5) are arranged in an aligned mode in the vertical direction.

4. The full-band high-quality raney according to claim 1, characterized in that: an upper connecting beam (4 b) is arranged between every two adjacent first strip-shaped sound beam components (4 a), and the upper connecting beam (4 b) stretches across the upper parts of the first groove (6) and the second groove (7) to form a well-shaped upper sound beam assembly (4); and each upper connecting beam (4 b) is positioned in the central area of the lower surface of the panel (1).

5. The full-band high-quality raney according to claim 2, characterized in that: a lower connecting beam (5 b) is arranged between every two adjacent second strip-shaped sound beam components (5 a), and the lower connecting beam (5 b) spans over the third groove (9) and the fourth groove (10) to form a lower sound beam assembly (5) in a groined shape; and each of the lower connecting beams (5 b) is located in a central region of the upper surface of the bottom plate (2).

6. The full-band high-quality raney according to claim 1, characterized in that: the panel (1) is divided into a peripheral high-pitch area, a middle-pitch area and a central low-pitch area from the pronunciation frequency band;

the wall thickness of the panel (1) is gradually increased from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area;

the upper sound beam assembly (4) is located in the bass region.

7. The full-band high-quality raney according to claim 2, characterized in that: the bottom plate (2) is divided into a peripheral high-pitch area, a middle-pitch area and a central low-pitch area from the pronunciation frequency band;

the wall thickness of the bottom plate (2) is gradually increased from outside to inside, the wall thickness of a low-sound area is larger than that of a middle-sound area, and the wall thickness of the middle-sound area is larger than that of a high-sound area;

the bass beam assembly (5) is located in the bass region.

8. The full-band high-quality raney according to claim 2, characterized in that: the inner end thicknesses of the upper sound beam assembly (4) and the lower sound beam assembly (5) are larger than the outer end thicknesses.

9. The full-band high-quality raney according to claim 2, characterized in that: the first groove (6), the second groove (7), the third groove (9) and the fourth groove (10) are all arc-shaped grooves.

10. The full-band high-quality raney according to claim 2, characterized in that: the lengths of the first groove (6) and the second groove (7) are smaller than the width of the panel (1), and the lengths of the third groove (9) and the fourth groove (10) are smaller than the width of the bottom plate (2);

smooth transition surfaces are arranged between the outer ends of the first groove (6) and the second groove (7) and the lower surface of the panel (1); smooth transition surfaces are arranged between the outer ends of the third groove (9) and the fourth groove (10) and the upper surface of the bottom plate (2).

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