CN212435917U - Full-band high-tone-quality planar resonant speaker with sound beam and sound tunnel - Google Patents

Abstract

A full-band high-tone quality plane resonance loudspeaker with a sound beam and a sound tunnel comprises a vibrating diaphragm which is in a plane shape, the outer edge of the vibrating diaphragm is combined with an outer frame of the loudspeaker through an elastic connecting piece, and the middle part of the vibrating diaphragm is arranged corresponding to a sound source; a first groove and a second groove are arranged on at least one surface of the vibrating diaphragm, the two grooves are crossed and communicated with each other, and the surface of the vibrating diaphragm is equally divided into four resonance areas; the center of the surface of the diaphragm on the same side with the two grooves is also provided with a sound beam assembly which comprises a plurality of strip-shaped sound beam components, and the strip-shaped sound beam components are arranged on two sides of the first groove and two sides of the second groove in pairs; the two grooves respectively form a sound tunnel on the surface of the vibrating diaphragm. The utility model discloses change into present standard vibration mode with the vibrating diaphragm by free vibration mode in the past, solved the plane resonance speaker high voice area from the angle of vibration, sympathetic response, sound production and bright not coming out, and the low voice area is muddy and mellow not enough problem. Practice proves that the improved design scheme has outstanding substantive features and remarkable technical progress.

Description

Full-band high-tone-quality planar resonant speaker with sound beam and sound tunnel

Technical Field

The utility model relates to a plane resonance speaker, concretely relates to full frequency channel high tone quality plane resonance speaker of voiced sound roof beam and sound tunnel.

Background

The resonance loudspeaker is a special loudspeaker applied to electronic products (such as intelligent sound boxes), is usually matched with other loudspeakers in sound equipment for use, can be assembled at the peripheral side part of a main loudspeaker to play an auxiliary role, is used for enhancing and improving the tone quality, contributes to restoring original sound and improves the sound fidelity. As shown in fig. 1 and 2, a diaphragm 1 of a conventional planar resonant speaker is connected to a frame 3 of the speaker through an elastic connector 2 (optionally a rubber ring) at the periphery of the diaphragm 1. When the loudspeaker works, air is pushed by the vibration of the diaphragm 1, so that sound is produced.

The problems common to conventional planar resonant speakers are: the speaker has an inherent resonant frequency during pronunciation, and after exceeding the certain range in the resonant frequency region, the high pitch zone is bright and not enough, and the low pitch zone is muddy and mellow, and can not realize the high-quality tone of full frequency channel. 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 planar resonant speaker has an unreasonable structural design, which is not favorable for the diaphragm to perform sound wave 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 full frequency channel high tone quality plane resonance speaker of voiced sound roof beam and sound tunnel.

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

a full-band high-tone quality plane resonance loudspeaker with a sound beam and a sound tunnel comprises a vibrating diaphragm, wherein the vibrating diaphragm is in a plane shape, the outer edge of the vibrating diaphragm is combined with an outer frame of the loudspeaker through an elastic connecting piece, and the middle part of the vibrating diaphragm is arranged corresponding to a sound source;

the surface of at least one side of the vibrating diaphragm is provided with a first groove and a second groove, the first groove and the second groove are crossed on the surface of the vibrating diaphragm and are communicated with each other, the crossed point is positioned in the center of the vibrating diaphragm, and the surface of the vibrating diaphragm is further divided into four resonance areas;

the center of the surface of the diaphragm, which is provided with the first groove and the second groove, on the same side is also provided with a sound beam assembly, the sound beam assembly comprises a plurality of strip-shaped sound beam components, and the strip-shaped sound beam components 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 respectively form a sound tunnel on the surface of the diaphragm.

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

1. in the above scheme, the first groove and the second groove are crossed and communicated with each other on the surface of the diaphragm, which is helpful for rapidly transmitting the vibration of the sound source to the periphery of the diaphragm through the cross-shaped sound tunnel (i.e. the sound tunnel) formed by the two grooves.

2. In the above scheme, the intersection point of the first groove and the second groove is located at the center of the diaphragm, so that the design can improve the tone quality and tone color of the diaphragm.

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

4. In the scheme, the vibrating diaphragm is divided into a peripheral high-sound area, a middle-sound area and a central low-sound area from a sound frequency range; 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 close to the center, 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 center, can make the frequency higher, the less high-frequency vibration of amplitude send more penetrating, bright high pitch at the high pitch region of vibrating diaphragm, and then make the tone quality, the tone quality that the plane resonance speaker produced at full frequency channel all effectively promote.

5. In the above scheme, the thickness of the inner end of each strip-shaped sound beam component is greater than that of the outer end. By means of the design, the central area of the diaphragm can be reinforced.

6. In the above scheme, the first groove and the second groove are arc-shaped grooves, so that the thickness of the vibrating diaphragm can be reduced as much as possible, and resonance and vibration of the vibrating diaphragm are prevented from being influenced.

7. In the above scheme, the lengths of the first groove and the second groove are both smaller than the horizontal width of the diaphragm, and smooth transition surfaces are arranged between the outer ends of the first groove and the second 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 full-band high-tone quality plane resonance loudspeaker with a sound beam and a sound tunnel, which comprises a vibrating diaphragm which is in a plane shape, the outer edge of the vibrating diaphragm is combined with the outer frame of the loudspeaker through an elastic connecting piece, and the middle part of the vibrating diaphragm corresponds to a sound source; a first groove and a second groove are arranged on at least one surface of the vibrating diaphragm, the two grooves are crossed and communicated with each other, and the surface of the vibrating diaphragm is equally divided into four resonance areas; the center of the surface of the diaphragm on the same side with the two grooves is also provided with a sound beam assembly which comprises a plurality of strip-shaped sound beam components, and the strip-shaped sound beam components are arranged on two sides of the first groove and two sides of the second groove in pairs; the two grooves respectively form a sound tunnel on the surface of the vibrating diaphragm.

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 plane resonance speaker, the utility model discloses vibrating diaphragm design in to current plane resonance speaker, especially plane resonance speaker has improved. The concrete aspects are as follows: firstly, erecting a sound beam assembly on the surface of a vibrating diaphragm; secondly, set up the cross slot on the surface of vibrating diaphragm to form cross sound tunnel on the surface of vibrating diaphragm.

The utility model discloses it can not come out to light to current plane resonance speaker high pitch area, and the not enough problem of bass district muddy and mellow, carried out deep discussion and research to the design and the vocal mechanism of plane resonance speaker, found out the not good leading reason of tone quality in current plane resonance speaker high pitch area and bass district 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 plane resonance 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 plane resonance speaker high pitch area from the angle of vibration, sympathetic response, sound production and has not come out, and the bass district is muddy mellow and full 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 plane resonance speaker 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 on the central zone of vibrating diaphragm, and the high pitch sympathetic response is concentrated on 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 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 edge area is relatively changed, and the diaphragm also has a beneficial effect on improving the tone color and tone quality of a high-pitch area.

2. The utility model discloses establish the cross slot on the vibrating diaphragm surface, this cross slot actually forms the cross sound tunnel on the surface of vibrating diaphragm, and the vibration is collected by the vibrating diaphragm center to through the transmission of cross sound tunnel (the tunnel of sound promptly) to the edge all around of vibrating diaphragm rapidly, this has played the key role to tone quality and the tone quality that improves the high voice zone.

3. The utility model discloses a design of sound roof beam subassembly and cross slot, four resonance regions of partition on the vibrating diaphragm on the equal grade. When the plane resonance loudspeaker works, the vibration of an external sound source is transmitted to the central area of the diaphragm firstly, then transmitted to each resonance area through the sound tunnel, and resonance and vibration are generated, so that the vibration of the external sound source is amplified to be resonance sound of the diaphragm. Each resonance region can generate one sound wave quantity, and one acoustic wave quantity is added to the original sound wave quantity, so that the total quantity of the five sound waves is five. 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.

4. The utility model discloses an upper surface of vibrating diaphragm can be located to sound roof 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 diagram of a conventional planar resonant speaker;

fig. 2 is a schematic cross-sectional view of a conventional planar resonant speaker;

FIG. 3 is a schematic structural view (without connecting beam) of the present invention;

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

fig. 5 is a schematic view (without a connecting beam) of the sound beam assembly of the embodiment of the present invention when the sound beam assembly is disposed on the upper surface of the diaphragm;

fig. 6 is a schematic view (without a connecting beam) of the sound beam assembly according to the embodiment of the present invention, which is disposed on the upper and lower surfaces of the diaphragm;

FIG. 7 is a schematic structural view (with connecting beams) of the present invention;

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

fig. 9 is a schematic view (with a connecting beam) of the sound beam assembly of the embodiment of the present invention when the sound beam assembly is disposed on the upper surface of the diaphragm;

fig. 10 is a schematic view (with a connection beam) of the sound beam assembly according to the embodiment of the present invention, which is disposed on the upper and lower surfaces of the diaphragm.

In the above drawings: 1. vibrating diaphragm; 2. an elastic connecting member; 3. an outer frame; 4. vibrating diaphragm; 5. a first trench; 6. a second trench; 7. a resonance region; 8. a sound beam assembly; a strip-shaped sound beam member; connecting beam 8 b.

Detailed Description

The invention will be further described with reference to the following drawings 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," and the like, as used herein, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical terms.

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.

Referring to fig. 3 and 4, a full-band high-tone quality planar resonance speaker with a sound beam and a sound tunnel includes a vibrating diaphragm 4, wherein the vibrating diaphragm 4 is planar, the outer edge of the vibrating diaphragm is combined with an outer frame 3 of the speaker through an elastic connecting member 2, and the middle part of the vibrating diaphragm 4 corresponds to a sound source (such as a main speaker).

And a first groove 5 and a second groove 6 are arranged on the lower surface of the diaphragm 4, and the two grooves form a transverse sound tunnel and a longitudinal sound tunnel on the lower surface of the diaphragm 4 respectively.

The first groove 5 and the second groove 6 are crossed and communicated with each other on the lower surface of the diaphragm 4, and the crossed point is located in the center of the diaphragm 4, so that the vibration of a sound source is rapidly transmitted to the periphery of the diaphragm 4 through a cross-shaped sound tunnel (i.e., a sound tunnel) formed by the two grooves 5 and 6. The intersection of the first groove 5 and the second groove 6 is located in the center of the diaphragm 4, and divides the surface of the diaphragm 4 into four resonance regions 7.

Through having seted up the cross slot on vibrating diaphragm 4 lower surface, this cross slot actually forms cross sound tunnel at the lower surface of vibrating diaphragm 4, and the region that is close the center collects the vibration of external sound source, and the rethread cross sound tunnel is rapidly to the peripheral edge transmission all around of vibrating diaphragm 4, and this has played the key role to the tone quality and the tone quality that improve the high-pitched region. Meanwhile, four resonance areas 7 are equally divided on the diaphragm 4, so that vibration can be transmitted to the four resonance areas 7 through a sound tunnel and resonance is generated, and the timbres of a high-tone area and a low-tone area can be obviously improved.

The center of the lower surface of the diaphragm 4 is further provided with a sound beam assembly 8, the sound beam assembly 8 comprises a plurality of strip-shaped sound beam members 8a, and the strip-shaped sound beam members 8a are arranged on two sides of the first groove 5 and two sides of the second groove 6 in pairs.

Through set up sound beam assembly 8 on the lower surface at vibrating diaphragm 4, because bass amplitude is big, the frequency is low relatively, the bass sympathetic response is concentrated on the central zone of vibrating diaphragm 4, and the treble sympathetic response is concentrated on the edge region all around of vibrating diaphragm 4, strengthens vibrating diaphragm 4 central zone intensity, has played important effect to improving bass district tone quality and tone quality. Because the thickness of the diaphragm 4 is a thickness-gradually-changing structure (namely, a design with a thin outer part and a thick inner part) with a thick central area and thin periphery, the strength of the central area of the diaphragm 4 is enhanced, the thickness difference between the central area of the diaphragm 4 and the peripheral edge 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.

Preferably, as shown in fig. 7 and 8, a connecting beam 8b is arranged between two adjacent strip-shaped sound beam members 8a, and the connecting beam 8b spans over the first groove 5 and the second groove 6 to form the sound beam assembly 8 in a groined shape; and each of the connection beams 8b is located in a central region of the surface of the diaphragm 4. A reinforcing structure shaped like a Chinese character 'kou' is formed by the four connecting beams 8b, so that the bass area in the center of the vibrating diaphragm 4 can be further reinforced, and the tone quality of the bass area of the vibrating diaphragm 4 can be further improved.

Preferably, the diaphragm 4 is divided into a peripheral high-sound region, a middle-sound region and a central low-sound region from the sound frequency range; the wall thickness of the diaphragm 4 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; 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 region of the vibrating diaphragm 4; through setting up thinner high pitch range in the position of keeping away from the center, can make the high-frequency vibration that the frequency is higher, the amplitude is less send more penetrating, bright high pitch at the high pitch range of vibrating diaphragm 4. The beam assembly 8 is located in the bass region to further increase the load in the middle region of the diaphragm 4.

Preferably, the thickness of the inner end of the bar-shaped sound beam member 8a is larger than that of the outer end. By this design, the central region of the diaphragm 4 can be reinforced.

Preferably, the first groove 5 and the second groove 6 are both arc-shaped grooves, so that the thickness of the diaphragm 4 is reduced as much as possible, and resonance and vibration of the diaphragm 4 are prevented from being influenced.

The lengths of the first groove 5 and the second groove 6 are both smaller than the horizontal width of the diaphragm 4, and smooth transition surfaces are arranged between the outer ends of the first groove 5 and the second groove 6 and the surface of the diaphragm 4, so that the vibration is transmitted to the peripheral part of the diaphragm 4 more uniformly.

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

1. in the above embodiments, the illustrated resonant speaker is only used for illustration, the structure is not intended to limit the protection scope of the present invention, and other resonant 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 8 is not limited to one set, and may be multiple sets in parallel or other designs that help to reinforce the central load of the diaphragm 4, which will be understood and accepted by those skilled in the art.

3. In the above embodiments, the sound beam assembly 8 and the two grooves 5 and 6 may be located on the lower surface of the diaphragm 4 (as shown in fig. 4 and 8), on the upper surface of the diaphragm 4 (as shown in fig. 5 and 9), or on both the upper surface and the lower surface of the diaphragm 4 (as shown in fig. 6 and 10).

4. In the above embodiment, the bar-shaped sound beam members 8a may be straight bars as shown in the figure, and two of them are combined at 90 degrees and are disposed in pairs at two sides of the first groove 5 and two sides of the second groove 6.

Alternatively, the strip-shaped sound beam members 8a may have a radian and include two straight edges, and the straight edges of two adjacent strip-shaped sound beam members 8a are arranged on two sides of the first groove 5 and the second groove 6 in pairs.

5. In the above embodiment, the first grooves 5 and the second grooves 6 are both arc-shaped grooves. 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.

6. In the above embodiments, the material of the diaphragm 4 may be, for example, a metal material, a carbon fiber material, paper material, and the like.

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 plane resonance speaker, the utility model discloses vibrating diaphragm design in to current plane resonance speaker, especially plane resonance speaker has improved. The concrete aspects are as follows: firstly, erecting a sound beam assembly on the surface of a vibrating diaphragm; secondly, set up the cross slot on the surface of vibrating diaphragm to form cross sound tunnel on the surface of vibrating diaphragm.

The utility model discloses it can not come out to light to current plane resonance speaker high pitch area, and the not enough problem of bass district muddy and mellow, carried out deep discussion and research to the design and the vocal mechanism of plane resonance speaker, found out the not good leading reason of tone quality in current plane resonance speaker high pitch area and bass district 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 plane resonance 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 plane resonance speaker high pitch area from the angle of vibration, sympathetic response, sound production and has not come out, and the low pitch area is muddy and mellow not enough problem, has improved the fidelity of each frequency channel sound, 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 full frequency channel high tone quality plane resonance speaker of sound roof beam and sound tunnel which characterized in that:

the loudspeaker comprises a vibrating diaphragm (4), wherein the vibrating diaphragm (4) is planar, the outer edge of the vibrating diaphragm is combined with an outer frame (3) of the loudspeaker through an elastic connecting piece (2), and the middle part of the vibrating diaphragm (4) is arranged corresponding to a sound source;

a first groove (5) and a second groove (6) are formed in the surface of at least one side of the vibrating diaphragm (4), the first groove (5) and the second groove (6) are crossed on the surface of the vibrating diaphragm (4) and are communicated with each other, the crossed points are located in the center of the vibrating diaphragm (4), and then the surface of the vibrating diaphragm (4) is equally divided into four resonance areas (7);

the center of the same side surface of the diaphragm (4) provided with the first groove (5) and the second groove (6) is also provided with a sound beam assembly (8), the sound beam assembly (8) comprises a plurality of strip-shaped sound beam components (8 a), and the strip-shaped sound beam components (8 a) are arranged on two sides of the first groove (5) and two sides of the second groove (6) in pairs;

the first groove (5) and the second groove (6) form a sound tunnel on the surface of the diaphragm (4) respectively.

2. The full-band high-quality planar resonant speaker as set forth in claim 1, wherein: a connecting beam (8 b) is arranged between every two adjacent strip-shaped sound beam components (8 a), and the connecting beam (8 b) stretches across the upper parts of the first groove (5) and the second groove (6) to form a sound beam assembly (8) in a groined shape; and each of the connecting beams (8 b) is located in a central region of the surface of the diaphragm (4).

3. The full-band high-quality planar resonant speaker as set forth in claim 1, wherein: the vibrating diaphragm (4) is divided into a peripheral high-sound area, a middle-sound area and a central low-sound area from a sound frequency range;

the wall thickness of the diaphragm (4) 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 (8) is located in the bass region.

4. The full-band high-quality planar resonant speaker as set forth in claim 1, wherein: the thickness of the inner end of the strip-shaped sound beam component (8 a) is larger than that of the outer end.

5. The full-band high-quality planar resonant speaker as set forth in claim 1, wherein: the first groove (5) and the second groove (6) are both arc-shaped grooves.

6. The full-band high-quality planar resonant speaker as set forth in claim 1, wherein: the lengths of the first groove (5) and the second groove (6) are both smaller than the horizontal width of the diaphragm (4); smooth transition surfaces are arranged between the outer ends of the first groove (5) and the second groove (6) and the surface of the vibrating diaphragm (4).

Images