CN213073091U - Thin loudspeaker with annular sectional type sound beam - Google Patents

Abstract

A thin loudspeaker with an annular sectional type sound beam comprises a voice coil and a vibrating diaphragm; the vibrating diaphragm is disc-shaped, the outer edge of the vibrating diaphragm is combined with the outer frame of the loudspeaker, and the inner edge of the vibrating diaphragm is combined with the upper end of the voice coil; the vibrating diaphragm is provided with a sound beam component which is fixedly arranged on at least one side surface of the vibrating diaphragm and is positioned outside the upper end of the voice coil; the sound beam assembly comprises a plurality of arc-shaped sound beam components, each arc-shaped sound beam component is arranged in a ring shape, and a gap is formed between every two adjacent arc-shaped sound beam components; the vibrating diaphragm is also provided with at least two grooves on the same surface provided with the sound beam component, and the grooves are radially distributed to equally divide the surface of the vibrating diaphragm positioned on the outer side of the sound beam component into a plurality of resonance areas; gaps between the grooves and the two arc-shaped sound beam components are penetrated in a one-to-one alignment way; the groove is concavely arranged on the surface of the vibrating diaphragm to form a sound tunnel. The utility model discloses change into present standard vibration mode with the vibrating diaphragm by free vibration mode in the past, solved the speaker high voice area from the angle of vibration, sympathetic response, sound production and brighten and can not come out, and the low voice area is muddy and mellow not enough problem.

Description

Thin loudspeaker with annular sectional type sound beam

Technical Field

The utility model relates to a speaker, concretely relates to take thin shape speaker of annular sectional type sound roof beam, this thin shape speaker can be applied to in electronic products such as earphone, headset, cell-phone, panel computer, notebook computer.

Background

A speaker (also called a loudspeaker) is a device for converting an electrical signal into an acoustic signal, as shown in fig. 1 to 8, a conventional thin speaker generally includes a voice coil 1, a diaphragm 2, a magnet, a magnetic conductive structure (not shown), and the like. When the loudspeaker works, currents with different magnitudes are output by the amplifier, converted into sound waves through frequency waves, the output energy is improved through power pushing, the voice coil 1 moves under the action of a magnetic field, meanwhile, the voice coil 1 is connected to the vibrating diaphragm 2 and drives the vibrating diaphragm 2 to vibrate, and then air is pushed through the vibration of the vibrating diaphragm 2, so that sound is produced.

The conventional thin speaker has the common problems that: the loudspeaker has a natural resonant frequency when sounding, and after exceeding a certain range of a resonant frequency area, a high pitch area is not bright, and a low pitch area is not perfectly round. Bass must be realized through a special woofer, and treble must be realized through a special tweeter, that is, the tone is proportional to the number of loudspeakers, and the full-band quality tone cannot be realized through a single loudspeaker. The reason for this is that the conventional loudspeaker diaphragm cannot satisfy a good wide-band vibration from a high-pitch region to a low-pitch region, i.e., cannot simultaneously adapt to wide frequency variation resonance and vibration in the high-pitch region, the middle-pitch region and the low-pitch region. In summary, the conventional thin speaker has an unreasonable structural design, which is not favorable for the diaphragm to perform sound vibration from the high-pitched area to the low-pitched area.

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 utility model aims at providing a take thin type speaker of annular sectional type sound roof beam.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a thin loudspeaker with an annular sectional type sound beam comprises a voice coil and a vibrating diaphragm; the vibrating diaphragm is disc-shaped, the outer edge of the vibrating diaphragm is combined with the outer frame of the loudspeaker, and the inner edge of the vibrating diaphragm is combined with the upper end of the voice coil;

the sound beam component is fixedly arranged on at least one side surface of the vibrating diaphragm and is positioned outside the upper end of the voice coil in the horizontal direction of the loudspeaker; the sound beam assembly comprises a plurality of arc-shaped sound beam components, each arc-shaped sound beam component is arranged in a ring shape around the center of the loudspeaker in the horizontal direction, and a gap is formed between every two adjacent arc-shaped sound beam components;

the vibrating diaphragm is also provided with at least two grooves on the same surface provided with the sound beam component, and the grooves are radially distributed by taking the center of the loudspeaker in the horizontal direction as a reference, so that the surface of the vibrating diaphragm positioned on the outer side of the sound beam component is equally divided into a plurality of resonance areas; the grooves are matched with the gaps between the two arc-shaped sound beam components in a one-to-one alignment mode, and the grooves penetrate through the gaps;

the groove is concavely arranged on the surface of the diaphragm to form a sound tunnel.

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

1. in the above scheme, the sound beam component is fixedly arranged on at least one side surface of the vibrating diaphragm and is positioned outside the upper end of the voice coil in the horizontal direction of the loudspeaker, so that the design can help the area between the sound beam component and the voice coil on the vibrating diaphragm to play a convergent role in the sound production vibration of the voice coil.

2. In the above scheme, the grooves are uniformly arranged in a radial shape with the center of the loudspeaker in the horizontal direction as a reference, which is helpful for rapidly transmitting the vibration of the voice coil to the periphery of the diaphragm through the radial sound tunnel (i.e. the sound tunnel) formed by the grooves.

3. In the above scheme, still be equipped with several recesses on the vibrating diaphragm, and each the recess is radial and arranges to this promotes the structural strength of vibrating diaphragm. The groove may be of a straight design to avoid interfering acoustic tunnels.

4. In the scheme, the vibrating diaphragm is divided into a high-sound area at the outer section, a middle-sound area at the middle section and a low-sound area at the inner section from a sound-producing frequency band; the wall thickness of the diaphragm 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 sound beam assembly is located in the bass region.

By the design, the thicker bass region is arranged at a position close to the voice coil, so that low-frequency vibration with lower frequency and larger amplitude can generate more muddy and mellow bass in the bass region of the vibrating diaphragm; through setting up thinner high pitch region in the position of keeping away from the voice coil loudspeaker voice coil, can make the frequency higher, the less high-frequency vibration of amplitude send more penetrating, bright high pitch in the high pitch region of vibrating diaphragm, and then make the speaker all obtain effectively promoting at tone quality, the tone quality that full frequency channel produced.

5. In the above scheme, the groove is arranged in the gap in a penetrating manner. Borrow this design, be favorable to through sound tunnel transmission vibration to more be favorable to promoting the vibration response rate of vibrating diaphragm.

6. In the above scheme, when the diaphragm is horizontal, the center line of the up-down direction of the sound beam assembly overlaps with the center line of the up-down direction of the diaphragm, so as to improve the tone quality and tone color.

7. In the above scheme, each the slot is the arc wall, can be so that the vibrating diaphragm minimize thickness sudden change in thickness, influence the sympathetic response and the vibration of vibrating diaphragm.

8. In the above scheme, the length of the groove is smaller than the width of the diaphragm, and smooth transition surfaces are arranged between the two outer ends of the groove and the surface of the diaphragm.

The utility model discloses a theory of operation and advantage as follows:

the utility model relates to a thin loudspeaker with an annular sectional type sound beam, which comprises a voice coil and a vibrating diaphragm; the vibrating diaphragm is disc-shaped, the outer edge of the vibrating diaphragm is combined with the outer frame of the loudspeaker, and the inner edge of the vibrating diaphragm is combined with the upper end of the voice coil; the vibrating diaphragm is provided with a sound beam component which is fixedly arranged on at least one side surface of the vibrating diaphragm and is positioned outside the upper end of the voice coil; the sound beam assembly comprises a plurality of arc-shaped sound beam components, each arc-shaped sound beam component is arranged in a ring shape, and a gap is formed between every two adjacent arc-shaped sound beam components; the vibrating diaphragm is also provided with at least two grooves on the same surface provided with the sound beam component, and the grooves are radially distributed to equally divide the surface of the vibrating diaphragm positioned on the outer side of the sound beam component into a plurality of resonance areas; gaps between the grooves and the two arc-shaped sound beam components are penetrated in a one-to-one alignment way; the groove is concavely arranged on the surface of the vibrating diaphragm to form a sound tunnel.

Compared with the prior art, can't compromise the problem that high, well, bass district possess good sympathetic response tone simultaneously in order to solve current thin shape speaker, the utility model discloses vibrating diaphragm design in to current speaker, especially speaker has improved. The concrete aspects are as follows: firstly, erecting a sound beam assembly on the surface of a vibrating diaphragm; secondly, a radial groove is formed in the surface of the diaphragm, and a radial sound tunnel is formed in the radial groove in the surface of the diaphragm.

The utility model discloses highlight not come out to current thin shape speaker high pitch area, and the not enough problem of low pitch area muddy and mellow, carried out deep discussion and research to the design and the vocal mechanism of speaker, found out the not good leading reason of tone quality in current speaker high pitch area and low pitch area because the diaphragm design is unreasonable to be sent. In view of the above, the inventor has broken the constraint that the design was constituteed to the thin shape speaker in the past, and the bold has proposed the utility model discloses an improve design, this kind of improve design changes the vibrating diaphragm into present standard vibration mode by the free vibration mode in the past, has solved the speaker highlight from the angle of vibration, sympathetic response, sound production and can not come out, and the bass region is muddy mellow and not enough problem, practice proves that this improves design has outstanding substantive characteristics and apparent technological progress to obvious technological effect has been obtained.

Because of above-mentioned technical scheme's application, the utility model discloses compare with current thin loudspeaker vibrating diaphragm and have following advantage and effect:

1. the utility model discloses set up the sound roof beam subassembly on the surface of vibrating diaphragm, because the relative high pitch amplitude of bass is big, the frequency is low, and the bass sympathetic response is concentrated in the central zone that the vibrating diaphragm is close to the voice coil loudspeaker voice coil, and the high pitch sympathetic response is concentrated in the edge region all around of vibrating diaphragm, strengthens vibrating diaphragm central zone intensity, has played important effect to improving bass district tone quality and tone quality. Because the thickness of the diaphragm is a thickness-gradually-changing structure (namely, the thickness is thin outside and the thickness is thick inside) with thick central area and thin periphery, the strength of the central area of the diaphragm is enhanced, the thickness difference between the central area of the diaphragm and the peripheral area is relatively changed, and the diaphragm also has a beneficial effect on improving the tone color and the tone quality of a high-pitch area.

2. The utility model discloses seted up radial slot on the surface of vibrating diaphragm, this radial slot actually forms radial sound tunnel on the vibrating diaphragm, and the region that is close the voice coil loudspeaker voice coil collects the voice coil loudspeaker voice coil vibration, and the radial sound tunnel of rethread (the tunnel of sound promptly) is rapidly to the marginal transmission all around of vibrating diaphragm, and this has played the key role to tone quality and the tone quality that improves the high voice zone.

3. The utility model discloses design into the sound roof beam subassembly with the sound roof beam, design gapped between two arcuation sound roof beam components especially, consequently more be favorable to through sound tunnel transmission vibration through the clearance to more be favorable to the sympathetic response and the quick vibration response of vibrating diaphragm.

4. The utility model discloses a design of sound roof beam subassembly and radial slot, the equal N piece resonance area the same with slot quantity of branch on the vibrating diaphragm. When the loudspeaker works, the vibration of the voice coil is transmitted to the central area of the vibrating diaphragm firstly, then transmitted to each resonance area through the sound tunnel, and resonance and vibration are generated, so that the vibration of an external sound source is amplified to be resonance sound of the vibrating diaphragm. Each resonance area can generate an acoustic wave quantity, and an acoustic wave quantity is added to the acoustic wave quantity to form N +1 acoustic wave quantities. The sound wave quantity is the number of sound waves, and the sound wave quantity directly influences the tone quality, the penetrating power and the volume of the diaphragm. 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 and the volume of the high-tone area and the low-tone area.

5. The utility model discloses the upper surface of vibrating diaphragm can be located to sound beam subassembly and slot, also can locate the lower surface of vibrating diaphragm, still can set up in the upper and lower two surfaces of vibrating diaphragm simultaneously.

Drawings

Fig. 1 is a schematic structural view of a conventional earphone speaker;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural view of a conventional headset speaker;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural diagram of a conventional mobile phone loudspeaker;

FIG. 6 is a sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic structural diagram II of a conventional speaker of a mobile phone;

FIG. 8 is a sectional view taken along line A-A of FIG. 7;

fig. 9 is a schematic structural diagram of an earphone speaker according to an embodiment of the present invention;

FIG. 10 is a sectional view taken along line A-A of FIG. 9;

fig. 11 is a schematic structural diagram of a headset speaker according to an embodiment of the present invention;

FIG. 12 is a sectional view taken along line A-A of FIG. 11;

fig. 13 is a schematic structural diagram of a speaker of a mobile phone according to an embodiment of the present invention;

FIG. 14 is a sectional view taken along line A-A of FIG. 13;

fig. 15 is a schematic view of a sound beam assembly of a mobile phone speaker according to an embodiment of the present invention, which is disposed on a lower surface of a diaphragm;

fig. 16 is a schematic view illustrating a sound beam assembly of a mobile phone speaker according to an embodiment of the present invention simultaneously disposed on the upper and lower surfaces of a diaphragm;

fig. 17 is a schematic structural diagram of a speaker of a mobile phone according to another embodiment of the present invention;

FIG. 18 is a sectional view taken along line A-A of FIG. 15;

fig. 19 is a schematic view of a sound beam assembly of a mobile phone speaker according to another embodiment of the present invention, which is disposed on a lower surface of a diaphragm;

fig. 20 is a schematic view illustrating a sound beam assembly of a speaker of a mobile phone according to another embodiment of the present invention disposed on both upper and lower surfaces of a diaphragm.

In the above drawings: 1. a voice coil; 2. vibrating diaphragm; 3. vibrating diaphragm; 4. a sound beam assembly; an arc-shaped sound beam member; 5. a trench; 6. a resonance region; 7. a gap; 8. a groove; 9. a dust cover.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown and described, and in which modifications and variations can be made without departing from the spirit and scope of the invention.

As used herein, the term "connected" or "disposed" 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 used in directional terms, and are used only for explaining the positional relationship between the structures in the present invention, and are not used to limit the protection scheme and the specific direction in practical implementation of the present invention.

Referring to fig. 9-20, a thin speaker with a ring-shaped segmented sound beam includes a voice coil 1, a diaphragm 3, and a magnetic conductive structure (not shown). The diaphragm 3 is disc-shaped, and its outer edge is combined with the outer frame of the speaker, and its inner edge is combined with the upper end of the voice coil 1.

The vibrating diaphragm 3 is provided with a sound beam assembly 4, and the sound beam assembly 4 is fixedly arranged on the upper surface of the vibrating diaphragm 3 and is positioned outside the upper end of the voice coil 1 in the horizontal direction of the loudspeaker; the sound beam assembly 4 includes a plurality of arc-shaped sound beam members 4a, each of the arc-shaped sound beam members 4a is arranged in a ring shape around the center of the speaker in the horizontal direction, and a gap 7 is formed between two adjacent arc-shaped sound beam members 4 a.

At least two grooves 5 are further arranged on the upper surface of the diaphragm 3, and the grooves 5 are concavely arranged on the upper surface of the diaphragm 3 to form a sound tunnel.

The grooves 5 are radially arranged by taking the center of the loudspeaker in the horizontal direction as a reference, so that the surface of the vibrating diaphragm 3 positioned on the outer side of the sound beam component 4 is equally divided into a plurality of resonance areas 6; the grooves 5 are matched with the gaps 7 between the two arc-shaped sound beam components 4a in a one-to-one alignment mode, and the grooves 5 penetrate through the gaps 7.

Through set up sound beam assembly 4 on the upper surface at vibrating diaphragm 3, because the relative high pitch amplitude of bass is big, the frequency is low, the bass sympathetic response is concentrated on vibrating diaphragm 3 and is close to the central zone of voice coil loudspeaker voice coil 1, and the high pitch sympathetic response is concentrated on the edge region all around of vibrating diaphragm 3, strengthens vibrating diaphragm 3 central zone intensity, has played important effect to improving bass district tone and tone quality. Because the thickness of the diaphragm 3 is a thickness-gradually-changing structure (namely, the design of the thickness of the outer part and the thickness of the inner part) with the thickness of the central area being thick and the thickness of the periphery being thin, the strength of the central area of the diaphragm 3 is enhanced, the thickness difference between the central area of the diaphragm 3 and the periphery area is relatively changed, and the thickness-gradually-changing structure also has a beneficial effect on improving the tone color and the tone quality of a high-pitch area.

By forming the radial groove 5 on the upper surface of the diaphragm 3, the radial groove 5 actually forms a radial sound tunnel on the upper surface of the diaphragm 3, and the region near the voice coil 1 collects the vibration of the voice coil 1 and rapidly transmits the vibration to the peripheral edge of the diaphragm 3 through the radial sound tunnel (i.e., a sound tunnel), which plays a key role in improving the timbre and sound quality of a high-pitched region. Meanwhile, the four resonance areas 6 are equally divided on the diaphragm 3, so that vibration can be transmitted to the four resonance areas 6 through the sound tunnel and resonance is generated, and the timbres of a bass area and a treble area can be obviously improved.

Preferably, the diaphragm 3 is divided into an outer high-sound region, a middle-sound region and an inner low-sound region from the sounding frequency band; the wall thickness of the diaphragm 3 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 sound beam component 4 is positioned in the bass region and can improve the middle load of the vibrating diaphragm 3.

Preferably, a plurality of grooves 8 are further formed in the diaphragm 3, and the grooves 8 are radially arranged, so that the structural strength of the diaphragm 3 is improved. The groove 8 may be of a straight design to avoid interference with sound tunnels.

A gap 7 is designed between the two arc-shaped sound beam components 4a, and the groove 5 is arranged in the gap 7 in a penetrating manner. Borrow this design, be favorable to through sound tunnel transmission vibration to more be favorable to promoting the vibration response rate of vibrating diaphragm 3.

Preferably, when the diaphragm 3 is horizontal, the center line of the sound beam assembly 4 in the up-down direction overlaps with the center line of the diaphragm 3 in the up-down direction.

Each groove 5 is an arc-shaped groove, so that the thickness of the vibrating diaphragm 3 is reduced as much as possible, and resonance and vibration of the vibrating diaphragm 3 are prevented from being influenced. The length of the groove 5 is smaller than the width of the diaphragm 3, and smooth transition surfaces are arranged between the two outer ends of the groove 5 and the upper surface of the diaphragm 3.

Other embodiments and structural changes of the present invention are described below as follows:

1. in the above embodiments, the illustrated thin speaker is only used for illustration, the structure is not used to limit the protection scope of the present invention, and other thin speakers with similar structures should be covered by the protection scope of the present invention if the technical features of the present invention are adopted.

2. In the above embodiments, the number of the sound beam assemblies 4 is not limited to one, and may be a plurality of parallel or other designs for reinforcing the load in the middle of the diaphragm 3, which is easily understood and accepted by those skilled in the art.

3. In the above embodiments, the sound beam assembly 4 and the groove 5 may be located on the upper surface of the diaphragm 3 (as shown in fig. 10, 12, 14, and 18), on the lower surface of the diaphragm 3 (as shown in fig. 15 and 19), or on both the upper and lower surfaces of the diaphragm 3 (as shown in fig. 16 and 20).

4. In the above embodiment, the groove 5 is an arc-shaped groove. However, the present invention is not limited thereto, and the groove may be designed into 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 embodiments, the material of the diaphragm 3 may be a metal material, a carbon fiber material, a composite material, or a paper material.

Compared with the prior art, can't compromise the problem that high, well, bass district possess good sympathetic response tone simultaneously in order to solve current thin shape speaker, the utility model discloses vibrating diaphragm design in to current speaker, especially speaker has improved. The concrete aspects are as follows: firstly, erecting a sound beam assembly on the surface of a vibrating diaphragm; secondly, a radial groove is formed in the surface of the diaphragm, and a radial sound tunnel is formed in the surface of the diaphragm by the radial groove.

The utility model discloses to present thin shape speaker high pitch area bright can not come out, and the not enough problem of low pitch area muddy and mellow, the design and the vocal mechanism to thin shape speaker have carried out deep discussion and research, have found out the not good leading reason of tone quality in present thin shape speaker high pitch area and low pitch area because the vibrating diaphragm design is unreasonable to be sent. In view of the above, the inventor has broken the constraint that the design was constituteed to the thin shape speaker in the past, and the courage has proposed the utility model discloses an improve design, this kind of improve design changes the vibrating diaphragm into present standard vibration mode by the free vibration mode in the past, has solved the speaker highlight from the angle of vibration, sympathetic response, sound production and can't come out, and the bass region is muddy and mellow not enough problem, has improved the fidelity of each frequency channel sound, and practice proves that this improves design has outstanding substantive characteristics and apparent technological progress to obvious technological effect has been obtained.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot 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 by the protection scope of the present invention.

Claims (6)

1. The utility model provides a take thin shape speaker of annular sectional type sound roof beam which characterized in that:

comprises a voice coil (1) and a vibrating diaphragm (3); the vibrating diaphragm (3) is disc-shaped, the outer edge of the vibrating diaphragm is combined with the outer frame of the loudspeaker, and the inner edge of the vibrating diaphragm is combined with the upper end of the voice coil (1);

the loudspeaker is characterized in that a sound beam component (4) is arranged on the vibrating diaphragm (3), the sound beam component (4) is fixedly arranged on at least one side surface of the vibrating diaphragm (3) and is positioned outside the upper end of the voice coil (1) in the horizontal direction of the loudspeaker; the sound beam component (4) comprises a plurality of arc-shaped sound beam components (4 a), each arc-shaped sound beam component (4 a) is arranged in a ring shape around the center of the horizontal direction of the loudspeaker, and a gap (7) is formed between every two adjacent arc-shaped sound beam components (4 a);

the vibrating diaphragm (3) is also provided with at least two grooves (5) on the same surface provided with the sound beam component (4), and the grooves (5) are radially arranged by taking the center of the loudspeaker in the horizontal direction as a reference, so that the surface of the vibrating diaphragm (3) positioned on the outer side of the sound beam component (4) is equally divided into a plurality of resonance areas (6); the grooves (5) are matched with the gaps (7) between the two arc-shaped sound beam components (4 a) in a one-to-one alignment mode, and the grooves (5) penetrate through the gaps (7);

the groove (5) is concavely arranged on the surface of the diaphragm (3) to form a sound tunnel.

2. The thin loudspeaker with a ring-shaped segmented sound beam of claim 1, wherein: the vibrating diaphragm (3) is further provided with a plurality of grooves (8), and the grooves (8) are radially arranged.

3. The thin loudspeaker with a ring-shaped segmented sound beam of claim 1, wherein: the vibrating diaphragm (3) is divided into a high-sound area of an outer section, a middle-sound area of a middle section and a low-sound area of an inner section from a sound-producing frequency band;

the wall thickness of the diaphragm (3) 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 sound beam component (4) is positioned in the bass region.

4. The thin loudspeaker with a ring-shaped segmented sound beam of claim 1, wherein: when the vibrating diaphragm (3) is horizontal, the center line of the sound beam component (4) in the vertical direction is overlapped with the center line of the vibrating diaphragm (3) in the vertical direction.

5. The thin loudspeaker with a ring-shaped segmented sound beam of claim 1, wherein: each groove (5) is an arc-shaped groove.

6. The thin loudspeaker with a ring-shaped segmented sound beam of claim 1, wherein: the length of the groove (5) is smaller than the width of the vibrating diaphragm (3), and smooth transition surfaces are arranged between the two outer ends of the groove (5) and the upper surface of the vibrating diaphragm (3).

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