CN217509011U - Sounding mechanism of medium-pitch compression waveguide equalizer - Google Patents

Abstract

The utility model belongs to the technical field of sound generating devices, in particular to a sound generating mechanism of a middle-tone compression waveguide equalizer, which comprises a horn; the compression waveguide is arranged at the sounding end of the horn; the compression waveguide is provided with an inner cavity in a penetrating way, and two ports of the inner cavity are respectively an inlet and an outlet; the equalizer is arranged in the inner cavity and close to the sounding end of the loudspeaker; a compression tongue plug is arranged on the equalizer, and one end of the compression tongue plug extends to the outlet; an annular sound wave compression channel is formed between the inner cavity and the compression tongue plug, and the width of the annular sound wave compression channel is reduced from one end of the introducing port to one end of the leading-out port; the sound wave emitted by the loudspeaker firstly passes through the equalizer and then goes out of the annular sound wave compression channel, then the sound wave is conducted along the annular sound wave compression channel, the sound wave is compressed in the process of conducting from the wider end of the annular sound wave compression channel to the narrower end of the annular sound wave compression channel, and finally the sound wave is transmitted out from the guide outlet to obtain sound with high reduction degree, high sound pressure and low distortion, so that the sound is further conducted.

Description

Sounding mechanism of medium-pitch compression waveguide equalizer

Technical Field

The utility model belongs to the technical field of the sound generating mechanism, especially, relate to a middle voice compression waveguide equalizer sound production mechanism.

Background

A speaker refers to a device that can convert an audio signal into sound. Generally speaking, it is that a power amplifier is provided in the main cabinet or the bass cabinet of the sound box, and the sound is amplified and then emitted back by the sound box itself, so that the sound becomes louder. With the continuous development of scientific research technology, the performance requirements of users on the sound box are higher and higher. Some large sound boxes are provided with horns and waveguides, but the horns and the waveguides are mostly regular trumpets at present, so that sound is difficult to further improve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a middle voice compression waveguide etc. ware sound production mechanism aims at solving the bugle among the prior art and the waveguide and mostly is the tubaeform of rule, leads to sound hardly to have the technical problem of further promotion.

In order to achieve the above object, an embodiment of the present invention provides a sounding mechanism for a mid-tone compression waveguide equalizer, including:

a horn;

the compression waveguide is arranged at the sounding end of the horn; the compression waveguide penetrates through an inner cavity, two ports of the inner cavity are respectively an introducing port and a leading-out port, the introducing port is close to the sound production end of the horn, and the leading-out port is far away from the sound production end of the horn; and

the equalizer is arranged in the inner cavity and close to the sound production end of the loudspeaker; a compression tongue plug is arranged on the equalizer, and one end of the compression tongue plug extends to the outlet; an annular sound wave compression channel is formed between the inner cavity and the compression tongue plug, and the width of the annular sound wave compression channel is reduced from the inlet to the outlet.

Optionally, the lumen and the compression tongue are both tapered.

Optionally, the annular acoustic compression channel height is reduced from the introduction port to the discharge port or is reduced first and then increased.

Optionally, the annular acoustic compression channel is a curved channel.

Optionally, the equalizer comprises a body; the outer ring of the main body is provided with an annular outer ring, a plurality of ribs distributed along the radius direction of the annular outer ring are connected between the annular outer ring and the main body, and two adjacent rib diffusion channels are arranged; the compression tongue plug is mounted on the body.

Optionally, a spherical groove is concavely formed in one end of the main body, which is close to the vibrating diaphragm of the loudspeaker, the vibrating diaphragm protrudes inwards the spherical groove to form a spherical vibrating diaphragm, and the spherical vibrating diaphragm and the spherical groove are correspondingly arranged and form a resonant cavity therebetween.

Optionally, the loudspeaker is provided with a first mounting table around a vibrating diaphragm of the loudspeaker, an annular outer ring is arranged on the periphery of the equalizer, a second mounting table extends outwards from the edge of the introducing port, and the first mounting table, the annular outer ring and the second mounting table are sequentially connected through screw threads.

Optionally, the device further comprises a mounting rack; the annular outer ring and the second mounting table are fixedly mounted on two opposite sides of the mounting frame respectively, and the mounting frame is provided with clearance holes for the equalizer.

Optionally, the introduction port is circular, and the discharge port is rectangular.

Optionally, the edge of the outlet extends outward to form a third mounting platform, and a plurality of third mounting holes are formed in the third mounting platform in a penetrating manner.

Compared with the prior art, the embodiment of the utility model provides an among the above-mentioned one or more technical scheme of middling compression waveguide equalizer vocal mechanism have one of following technological effect at least:

the sound wave emitted by the horn firstly passes through the equalizer and then goes out of the annular sound wave compression channel, then the sound wave is transmitted along the annular sound wave compression channel, the width of the annular sound wave compression channel is reduced from the inlet to the outlet, the sound wave is compressed in the process of being transmitted from the wider end of the annular sound wave compression channel to the narrower end of the annular sound wave compression channel, and finally the sound wave is transmitted out of the outlet to obtain sound with high reduction degree, high sound pressure and low distortion, so that the sound is transmitted farther.

Meanwhile, the horn can be connected to the compression waveguide, sound waves output through the annular sound wave compression channel are diffused out through the horn, the directivity of sound can be effectively controlled, the sound coverage is wide, the sound coverage is uniform, the stability is good, and side lobes are avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a sounding mechanism of a mid-tone compression waveguide equalizer according to the present invention.

Fig. 2 is a cross-sectional view of the sounding mechanism of the mid-tone compression waveguide equalizer of the present invention.

Fig. 3 is a schematic structural diagram of a compression waveguide and an equalizer according to the present invention.

Fig. 4 is another view of the compression waveguide and equalizer of the present invention.

Fig. 5 is a cross-sectional view taken along line C-C of fig. 3 according to the present invention.

Fig. 6 is a cross-sectional view taken along line D-D of fig. 4 according to the present invention.

Fig. 7 is a schematic structural diagram of an equalizer according to the present invention.

Wherein, in the figures, the respective reference numerals:

100. a horn; 110. vibrating diaphragm; 120. a first mounting table; 121. connecting holes;

200. an equalizer; 210. an annular outer ring; 220. a rib; 230. a diffusion channel; 240. a main body; 241. A spherical recess; 250. compressing the tongue plug; 260. a resonant cavity;

300. compressing the waveguide; 310. an annular acoustic compression channel; 320. an inlet port; 321. a second mounting table; 330. a lead-out port; 331. a third mounting table; 332. a third mounting hole;

400. a mounting frame; 410. and (5) avoiding a void.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the embodiments of the present invention, and should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1-7, a sounding mechanism of a mid-range compression waveguide equalizer is provided, which includes a speaker 100, an equalizer 200 and a compression waveguide 300.

Referring to fig. 1 and 2, the compression waveguide 300 is mounted on the sound emitting end of the horn 100. Compression waveguide 300 runs through and is equipped with the inner chamber, the both ends mouth of inner chamber is introducing port 320 and export 330 respectively, introducing port 320 is close to loudspeaker 100's vocal end, export 330 keeps away from loudspeaker 100's vocal end.

Referring to fig. 1 and 2, the equalizer 200 is installed in the inner cavity and near the sound generating end of the speaker 100 (referred to as the diaphragm 110 of the speaker 100). The equalizer 200 is provided with a compression tongue plug 250, and one end of the compression tongue plug 250 extends to the outlet 330. An annular acoustic compression passage 310 is formed between the inner cavity and the compression tongue 250, and the width a of the annular acoustic compression passage 310 decreases from the inlet port 320 to the outlet port 330.

Specifically, referring to fig. 1 and 2, the sound wave emitted from the horn 100 passes through the equalizer 200 and then enters the annular sound wave compression channel 310, and then the sound wave is transmitted along the annular sound wave compression channel 310, because the width a of the annular sound wave compression channel 310 is reduced from the inlet 320 to the outlet 330, the sound wave is compressed during the transmission from the wider end of the annular sound wave compression channel 310 to the narrower end of the annular sound wave compression channel, and finally the sound wave is transmitted from the outlet 330, so that a sound with high reproduction, high sound pressure and low distortion is obtained, and the sound is transmitted further.

In some embodiments, the outlet 330 of the compression waveguide 300 may be connected to a horn (not shown), and the sound wave transmitted through the annular sound wave compression channel 310 is diffused out through the horn, so that the directivity of the sound can be effectively controlled, the sound coverage is wide, the sound coverage is uniform, the stability is good, the polar coordinate diagram of the directivity is consistent with the control of the number of cylindrical waves, and no side lobe is generated.

Further, referring to fig. 2, 5 and 6, the compression waveguide 300, the inner cavity and the compression tongue 250 are all tapered, and the shape of the inner cavity corresponds to the shape of the compression tongue 250, so that the width of the annular acoustic compression channel 310 is reduced from one end of the introduction port 320 to one end of the discharge port 330, and the structure is compact.

Further, referring to fig. 3 to 6, the height B of the annular acoustic compression passage 310 decreases from one end of the introduction port 320 to one end of the discharge port 330, or decreases first and then increases. In a specific embodiment, the height B of the annular acoustic compression passage 310 is gradually reduced from one end of the introduction port 320 to one end of the discharge port 330 and then increased. In another embodiment, the height B of the annular acoustic compression passage 310 is reduced from one end of the introduction port 320 to one end of the discharge port 330, and therefore the installation of the height B of the annular acoustic compression passage 310 is not limited herein.

Further, referring to fig. 3-6, the annular acoustic compression channel 310 is a curved channel, and by setting the annular acoustic compression channel 310 as a curved channel, when the acoustic wave is conducted along the curved direction of the curved channel, compared with a straight-through type acoustic compression channel, the curved channel can change the direction of the acoustic wave, so that the acoustic wave is diffusely enhanced and does not rapidly pass through the curved channel, thereby enabling the curved channel to better compress the acoustic wave, and the effect of compressing the acoustic wave is good.

In another embodiment of the present invention, referring to fig. 2 and 7, the equalizer 200 is also called an equalizer for correcting the frequency distortion of sound generated when the diaphragm vibrates in the speaker (horn 100), thereby improving sound clarity and sound quality. The equalizer 200 faces the center of the sound emitting end of the speaker 100, so that the equalizer 200 improves the clarity and sound quality of the sound emitted from the speaker 100.

Further, referring to fig. 2 and 7, the equalizer 200 includes a main body 240. An annular outer ring 210 is arranged on the outer ring of the main body 240, a plurality of ribs 220 distributed along the radial direction of the annular outer ring 210 are connected between the annular outer ring 210 and the main body 240, a diffusion channel 230 is formed between two adjacent ribs 220, and two ends of the diffusion channel 230 respectively face the diaphragm 110 of the loudspeaker 100 and the annular sound wave compression channel 310. The bottom of the compression tongue 250 is fixedly installed on the body 240, and the tip of the compression tongue 250 extends to the outlet 330. In an embodiment, the compression tongue 250 is integrally formed with the body 240.

Specifically, referring to fig. 2 and 7, sound waves generated by vibration of the diaphragm 110 of the speaker 100 pass through the diffusion channel 230 of the equalizer 200, are diffused and enhanced along the diffusion channel 230, and then are transmitted into the annular sound wave compression channel 310, so as to improve the sound quality of low-frequency, medium-frequency or high-frequency sound waves, and compared with the common speaker 100, the speaker 100 provided with the equalizer 200 has an overall db value of medium-pitch or high-pitch increased by more than 5%, and the sound quality of medium-pitch or high-pitch is clearer and finer and has strong penetrating power.

Further, referring to fig. 2 and fig. 7, a spherical groove 241 is concavely provided at an end of the main body 240 close to the diaphragm 110 of the horn 100, the diaphragm 110 protrudes into the spherical groove 241 to form the spherical diaphragm 110, and the spherical diaphragm 110 and the spherical groove 241 are correspondingly disposed and form a resonant cavity therebetween. Specifically, when the diaphragm 110 of the loudspeaker 100 vibrates, the spherical diaphragm 110 and the spherical groove 241 cooperate with each other to easily resonate the resonant cavity, so that the sound field of the resonant cavity is enhanced, and the sound wave generated when the diaphragm 110 vibrates can be enhanced, thereby having the effect of enhancing the sound wave.

In another embodiment of the present invention, referring to fig. 1 and 2, the speaker 100 is provided with a first mounting platform 120 around the diaphragm 110, the circumference of the equalizer 200 is provided with an annular outer ring 210, the edge of the introducing port 320 extends outward to form a second mounting platform 321, the first mounting platform 120, the annular outer ring 210 and the second mounting platform 321 are connected in sequence by a screw joint, so that the speaker 100, the equalizer 200 and the compression waveguide 300 are fixedly connected.

Specifically, referring to fig. 1 and 2, a plurality of coaxially disposed connection holes 121 are formed through the first mounting stage 120, the annular outer ring 210 and the second mounting stage 321, a screw of a screw (not shown) passes through the connection hole 121 and is engaged with a nut (not shown), and the first mounting stage 120, the annular outer ring 210 and the second mounting stage 321 are fixedly clamped between a nut and a nut of the screw, so that the horn 100, the equalizer 200 and the compression waveguide 300 are fixedly connected, and the installation is convenient.

Further, referring to fig. 1 and 2, the sounding mechanism of the equalizer 200 of the midrange compression waveguide 300 further includes a mounting bracket 400. The annular outer ring 210 and the second mounting stage 321 are respectively and fixedly mounted on opposite sides of the mounting frame 400, and the mounting frame 400 is provided with clearance holes 410 for keeping away the equalizer 200. The horn 100, the equalizer 200, and the compression waveguide 300 are fixedly mounted on the mounting block 400, and the mounting block 400 is fixedly mounted in a housing of a speaker device (not shown), so that the sounding mechanism of the medium compression waveguide equalizer is fixedly mounted in the housing of the speaker device.

In another embodiment of the present invention, referring to fig. 3 to 6, the introduction port 320 is circular, and since the diaphragm 110 of the speaker 100 is circular, the circular introduction port 320 can correspond to the diaphragm 110 of the speaker 100, the structure is compact, and the introduction port 330 is rectangular.

Further, referring to fig. 3 to 6, a third mounting platform 331 extends outward from an edge of the outlet 330, and a plurality of third mounting holes 332 are formed through the third mounting platform 331. During installation, the compression waveguide 300 is fixedly installed in the casing of the speaker device by passing through the third installation hole 332 and screwing the third installation hole into the casing of the speaker device through screws, so that the installation is convenient.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims (10)

1. A sounding mechanism of a medium-pitch compression waveguide equalizer is characterized by comprising:

a horn;

the compression waveguide is arranged at the sound production end of the horn; the compression waveguide penetrates through an inner cavity, two ports of the inner cavity are respectively an introducing port and a leading-out port, the introducing port is close to the sound production end of the horn, and the leading-out port is far away from the sound production end of the horn; and

the equalizer is arranged in the inner cavity and close to the sound production end of the loudspeaker; a compression tongue plug is arranged on the equalizer, and one end of the compression tongue plug extends to the outlet; an annular sound wave compression channel is formed between the inner cavity and the compression tongue plug, and the width of the annular sound wave compression channel is reduced from one end of the introducing port to one end of the leading-out port.

2. The mid-tone compression waveguide equalizer sounding mechanism of claim 1, wherein: the inner cavity and the compression tongue plug are both conical.

3. The mid-tone compression waveguide equalizer sounding mechanism of claim 1, wherein: the height of the annular sound wave compression channel is reduced from one end of the leading-in port to one end of the leading-out port or is reduced firstly and then increased.

4. The mid-tone compression waveguide equalizer sounding mechanism of claim 1, wherein: the annular sound wave compression channel is a curved channel.

5. The mid-tone compression waveguide equalizer sounding mechanism of claim 1, wherein: the equalizer includes a main body; the outer ring of the main body is provided with an annular outer ring, a plurality of ribs distributed along the radius direction of the annular outer ring are connected between the annular outer ring and the main body, and a diffusion channel is formed between every two adjacent ribs; the compression tongue plug is mounted on the body.

6. The mid-tone compression waveguide equalizer sounding mechanism of claim 5, wherein: the loudspeaker comprises a loudspeaker body and is characterized in that a spherical groove is concavely arranged at one end, close to a vibrating diaphragm of the loudspeaker, of the main body, the vibrating diaphragm extends inwards the spherical groove to form a spherical vibrating diaphragm, and the spherical vibrating diaphragm and the spherical groove are arranged correspondingly and a resonant cavity is arranged between the spherical vibrating diaphragm and the spherical groove.

7. The mid-tone compression waveguide equalizer sounding mechanism of claim 1, wherein: the loudspeaker is characterized in that a first mounting table is arranged on the periphery of a vibrating diaphragm of the loudspeaker, an annular outer ring is arranged on the periphery of the equalizer, a second mounting table extends outwards from the edge of the introducing port, and the first mounting table, the annular outer ring and the second mounting table are sequentially connected through screw threads.

8. The mid-tone compression waveguide equalizer sounding mechanism of claim 7, wherein: the device also comprises a mounting rack; the annular outer ring and the second mounting table are fixedly mounted on two opposite sides of the mounting frame respectively, and the mounting frame is provided with clearance holes for the equalizer.

9. The mid-tone compression waveguide equalizer sounding mechanism of claim 1, wherein: the guide-in opening is circular, and the guide-out opening is rectangular.

10. The mid-tone compression waveguide equalizer sounding mechanism of claim 1, wherein: the edge of export has the third mount table to extend outward, run through on the third mount table and be equipped with a plurality of third mounting holes.

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