Coaxial horn structure

Abstract

The utility model provides a coaxial horn structure which comprises a basin stand, a vibration diaphragm is arranged on the basin stand, the basin stand is connected with a horn assembly with a large upper part and a small lower part, and the middle part of the vibration diaphragm is provided with an installation channel through which the lower part of the horn assembly passes. The horn assembly comprises a horn shell which is vertically through and has a large upper part and a small lower part, a conical core piece arranged in the horn shell and a sound guide plate arranged at the top of the horn shell, the bottom of the horn shell extends out of the bottom of the basin frame, the bottom of the conical core piece is provided with a conical bottom end sound guide part, the bottom end sound guide part extends out of the bottom of the horn shell, and the bottom end sound guide part is provided with a sound guide hole. And the lower side of the basin frame is connected with a sounding element which covers the bottom of the horn shell. The coaxial horn structure provided by the utility model aims to overcome the defects in the prior art and provides a coaxial horn structure in which high and low sound sounding points are highly overlapped.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coaxial horn structure. BACKGROUND

[0002] As an important device for converting audio signals into sound, loudspeakers are widely used in various sound systems. In order to achieve more efficient sound propagation and improve sound quality, horn loudspeakers have attracted much attention due to their unique acoustic characteristics. The horn refers to a specific shaped channel installed at the front of the loudspeaker, which can compress, amplify sound waves, and also can constrain and change the propagation direction. The horn loudspeaker guides sound waves in a specific direction through the horn structure to increase the sound pressure level and reduce distortion, thereby obtaining clear and powerful sound output at a long distance. Especially for high and medium frequency bands, horn loudspeakers can provide excellent directivity and control. The specific structure can refer to the patent scheme of the symmetric split line array horn with the patent number CN201822249703.4 and the name of a kind of patent scheme. However, the traditional horn structure is generally connected to the sound generating element on one side of the sound inlet, and one horn can only correspond to one kind of sound generating element, such as a horn corresponding to a medium sound generating element. In this way, multiple different sound generating elements need to be correspondingly arranged in multiple horns, which makes the overall product layout loose and bulky, and the sound outlets of different horns are far apart, and the sound radiation angle of different sound outlets has low coincidence degree, which affects the sound mixing effect.

[0003] The utility model is just based on the above-mentioned deficiencies. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiencies of the prior art and providing a coaxial horn structure with high and low sound output point height coincidence.

[0005] The utility model is realized through the following technical schemes:

[0006] The utility model provides a coaxial horn structure, including the basin stand, the basin stand is equipped with the diaphragm, the basin stand is connected with the horn assembly of big down small of upper and lower, the diaphragm middle part has the installation channel for the horn assembly lower part to penetrate, the horn assembly includes the horn casing of big down small of upper and lower and the penetration, the cone core spare that is arranged in the horn casing top, the sound guide plate that is arranged in the horn casing top, the horn casing bottom stretches out from the basin stand bottom, the cone core spare bottom has the bottom end sound guide part of conical, the bottom end sound guide part stretches out from the horn casing bottom, the basin stand lower side is connected with the sound generating element of covering the horn casing bottom.

[0007] The coaxial horn structure as described above, the horn shell is combined by a front shell and a rear shell, the sound guide plate is combined by a front sound guide plate and a rear sound guide plate, the front sound guide plate and the rear sound guide plate are clamped to form a sound outlet channel for sound to spread outward, the rear shell and the rear sound guide plate are integrally formed as a whole, and the front shell and the front sound guide plate are integrally formed as a whole.

[0008] The coaxial horn structure as described above, the bottom of the horn shell is provided with external threads, and the bottom of the horn shell is connected with a mounting sleeve, the inner side of the mounting sleeve is provided with internal threads matched with the external threads, and the mounting sleeve surrounds the front shell and the rear shell.

[0009] The coaxial horn structure as described above, the bottom of the horn shell is provided with external threads, and the bottom of the horn shell is connected with a mounting sleeve, the inner side of the mounting sleeve is provided with internal threads matched with the external threads, and the mounting sleeve surrounds the front shell and the rear shell.

[0010] The coaxial horn structure as described above, the bottom of the horn shell is provided with external threads, and the bottom of the horn shell is connected with a mounting sleeve, the inner side of the mounting sleeve is provided with internal threads matched with the external threads, and the mounting sleeve surrounds the front shell and the rear shell.

[0011] The coaxial horn structure as described above, the bottom of the horn shell is provided with external threads, and the bottom of the horn shell is connected with a mounting sleeve, the inner side of the mounting sleeve is provided with internal threads matched with the external threads, and the mounting sleeve surrounds the front shell and the rear shell.

[0012] The coaxial horn structure as described above, the bottom of the horn shell is provided with external threads, and the bottom of the horn shell is connected with a mounting sleeve, the inner side of the mounting sleeve is provided with internal threads matched with the external threads, and the mounting sleeve surrounds the front shell and the rear shell.

[0013] The coaxial horn structure as described above, the bottom of the horn shell is provided with external threads, and the bottom of the horn shell is connected with a mounting sleeve, the inner side of the mounting sleeve is provided with internal threads matched with the external threads, and the mounting sleeve surrounds the front shell and the rear shell.

[0014] The coaxial horn structure as described above, the bottom of the horn shell is provided with external threads, and the bottom of the horn shell is connected with a mounting sleeve, the inner side of the mounting sleeve is provided with internal threads matched with the external threads, and the mounting sleeve surrounds the front shell and the rear shell.

[0015] Compared with the prior art, the coaxial horn structure has the following advantages:

[0016] 1、The coaxial horn structure ingeniously arranges the sound generating element and the horn assembly at the center of the diaphragm (the basin frame), and the sound generating element and the horn assembly form a high or medium sound generating assembly, so that the acoustic centers of high and low sounds are completely ensured to be the same point, thereby solving the phase deviation problem, realizing the standard point sound source overlapping, and realizing that the high-frequency high-pitched horn outputs more natural sound in the form of the standard point sound source.

[0017] 2. The coaxial horn structure of the utility model, the conical core part bottom has the bottom end sound guide part of the cone, the bottom end sound guide part stretches out from the horn shell bottom and then is close to the sound production element, first, can make the structure more compact, second, can reduce the sound wave leakage, avoid the mutual interference between the high and low sound;

[0018] 3. The horn assembly of the coaxial horn structure of the utility model is a split structure, the sound guide plate is connected at the horn shell top through the detachable structure, so as to facilitate assembly and disassembly, and facilitate the adaptation of sound guide plates of different sizes and different specifications. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional schematic view of the coaxial horn structure of example one;

[0020] Figure 2 It is the cross-sectional schematic view of the coaxial horn structure of example one;

[0021] Figure 3 It is the longitudinal cross-sectional schematic view of the coaxial horn structure of example one;

[0022] Figure 4 It is the exploded schematic view of the coaxial horn structure of example one;

[0023] Figure 5 It is the three-dimensional schematic view of the coaxial horn structure of example two;

[0024] Figure 6 It is the cross-sectional schematic view of the coaxial horn structure of example two;

[0025] Figure 7 It is the longitudinal cross-sectional schematic view of the coaxial horn structure of example two;

[0026] Figure 8 It is the exploded schematic view of the coaxial horn structure of example two;

[0027] Figure 9 It is the exploded schematic view of the horn assembly of example two. DETAILED DESCRIPTION

[0028] The utility model will be further described below in combination with the drawings:

[0029] The orientation described in the utility model specification, such as“upper”,“lower”,“left”,“right”,“front”,“back” and the like, are all based on the orientation of the drawings as the reference, and for the purpose of facilitating the description of the relationship between various components, and not indicating the unique or absolute position relationship between various components, only for realizing one kind of embodiment of the utility model, and is not a kind of limitation to its embodiment.

[0030] Example one

[0031] This embodiment provides a coaxial horn structure, such as Figures 1 to 4 As shown, this coaxial horn structure includes a frame 1, on which a diaphragm 2 is mounted. A horn assembly 3, wider at the top and narrower at the bottom, is connected to the frame 1. The diaphragm 2 has an installation channel 20 in the middle for the lower part of the horn assembly 3 to pass through. The horn assembly 3 includes a horn shell 31 that extends vertically and is wider at the top and narrower at the bottom, a conical core 32 disposed within the horn shell 31, and a sound guide plate 33 connected to the top of the horn shell 31. The bottom of the horn shell 31 extends from the bottom of the frame 1. The bottom of the conical core 32 has a conical bottom sound guide portion 320 extending from the bottom of the horn shell 31. The speaker frame 1 has a sound-generating element 4 connected to its lower side, which covers the bottom of the horn housing 31. The frame 1 serves as the main support for the speaker and connects to the sound-generating element to form a bass-generating assembly. In this embodiment, the sound-generating element 4 and the horn assembly 3 are cleverly positioned at the center of the diaphragm 2 (frame 1), forming a high-frequency or mid-frequency sound-generating assembly. This ensures that the acoustic centers of the high and low frequencies are at the same point, thus solving the phase deviation problem and achieving standard point source overlap. This allows the high-frequency horn to output a more natural sound in a standard point source form. Furthermore, in this embodiment, the bottom sound guide 320 extends from the bottom of the horn housing 31 and approaches the sound-generating element 4. This makes the structure more compact and reduces sound wave leakage, avoiding mutual interference between high and low frequencies. Moreover, this example has a simple structure, facilitating assembly and replacement.

[0032] To improve the amplification effect of horn component 3, such as Figures 2 to 4 As shown, the lower part of the horn housing 31 is conical, and the lower part of the conical core 32 is also conical. This allows the sound waves emitted by the sound-generating element 4 to be focused, making the sound energy propagate forward more concentratedly, controlling the sound diffusion angle, and making the sound more directional.

[0033] As a preferred option, such as Figures 2 to 4 As shown, the lower end of the bottom sound guide 320 is close to the sound-generating element 4, and the lower end of the bottom sound guide 320 has a spherical arc surface 321 for sound guidance, which can improve the sound guiding effect of the cone core 32, reduce the diffraction effect of sound waves, thereby reducing sound scattering and distortion, making the sound waves transition smoothly and improving the sound quality.

[0034] In this embodiment, as Figures 2 to 4As shown, the horn shell 31 is composed of a front shell 31a and a rear shell 31b, which enclose a cavity with a flat upper part, a spindle-shaped middle part, and a tapered lower part. The shape of the cone core 32 matches that of the cavity, ensuring that a gap of substantially equal distance is kept between the cone core 32 and the inner wall of the cavity as a channel for guiding sound waves. Unlike the first embodiment, the sound guide plate 33 is composed of a front plate 33a and a rear plate 33b, which enclose a sound outlet channel 330 for sound to spread outward. The rear shell 31b and the rear plate 33b are integrally formed as a whole, and the front shell 31a and the front plate 33a are integrally formed as a whole, which makes the structure more stable.

[0035] As a preferred embodiment of the present embodiment, as shown in Figures 2 to 4 The bottom of the horn shell 31 is provided with external threads, and the mounting sleeve 35 is connected to the bottom of the horn shell 31. The inside of the mounting sleeve 35 is provided with internal threads matching the external threads. The mounting sleeve 35 encloses the front shell 31a and the rear shell 31b, i.e., half of the external threads are provided at the bottom of the front shell 31a and the rear shell 31b. When the two are folded together, a complete external thread is formed. The mounting sleeve 35 is screwed onto the external thread, making the product structure more stable and facilitating production and manufacturing.

[0036] As a preferred embodiment, as shown in Figures 1 to 4 In the present embodiment, the top of the horn shell 31 is provided with two support feet 312, which are provided with third mounting holes 313. The top of the basin stand 1 is provided with fourth mounting holes 11 corresponding to the third mounting holes 313. Screws are passed through the third mounting holes 313 and the fourth mounting holes 11.

[0037] As a preferred embodiment, as shown in Figure 2 and Figure 4 The top of the cone core 32 is provided with a raised positioning plate 322. The inner walls of the front shell 31a and the rear shell 31b are provided with accommodating grooves 315. When the front shell 31a and the rear shell 31b are folded together, the accommodating grooves 315 of the two enclose a positioning accommodating cavity 316 matching the shape of the positioning plate 322, thereby fixing the cone core 32 in the cavity and reducing the blocking structure that hinders the propagation of sound waves between the cone core 32 and the inner wall of the cavity.

[0038] Embodiment Two

[0039] The present embodiment provides a coaxial horn structure, as shown in Figures 5 to 8As shown, the coaxial horn structure includes a frame 1, the frame 1 is provided with a diaphragm 2, the frame 1 is connected with an upper large lower small horn assembly 3, the diaphragm 2 has a mounting channel 20 for the horn assembly 3 to penetrate, the horn assembly 3 includes an upper and lower through and upper large lower small horn shell 31, a cone core 32 provided in the horn shell 31, a sound guide plate 33 connected to the top of the horn shell 31, the bottom of the horn shell 31 extends from the bottom of the frame 1, the bottom of the cone core 32 has a conical bottom sound guide part 320, the bottom sound guide part 320 extends from the bottom of the horn shell 31, the bottom of the frame 1 is connected with a sound generating element 4 covering the bottom of the horn shell 31, wherein the frame 1 is used as the main support of the loudspeaker, and is used for connecting with the sound generating element of the loudspeaker to form a bass sound generating assembly, and the sound generating element 4 and the horn assembly 3 are arranged at the center of the diaphragm 2 (frame 1), and the sound generating element 4 and the horn assembly 3 form a high or medium sound generating assembly, so that the acoustic center of the high and low frequencies is the same point, thereby solving the problem of phase deviation, realizing the standard point sound source overlap, and realizing the horn of high frequency and high sound in the form of standard point sound source. The output of more natural sound. In addition, the bottom sound guide part 320 extends from the bottom of the horn shell 31 and is close to the sound generating element 4, which can make the structure more compact, reduce the leakage of sound waves, and avoid the mutual interference between high and low frequencies. Moreover, the example structure is simple, easy to assemble and replace.

[0040] In order to improve the sound amplification effect of the horn assembly 3, as shown in the drawings, Figures 6 to 8 The lower part of the horn shell 31 is conical, and the lower part of the cone core 32 is conical, which can focus the sound waves emitted by the sound generating element 4, make the sound energy more concentratedly propagate forward, control the diffusion angle of the sound, and make the sound more directional.

[0041] As preferred, as shown in the drawings, Figures 6 to 8 The lower end of the bottom sound guide part 320 is close to the sound generating element 4, and the lower end of the bottom sound guide part 320 has a spherical arc surface 321 for sound guiding, which can improve the sound guiding effect of the cone core 32, reduce the diffraction effect of sound waves, thereby reducing sound scattering and distortion, making the sound wave smooth transition, and improving the sound quality.

[0042] In the embodiment, as shown in the drawings, Figure 8As shown in the figure, the horn shell 31 is combined by a front shell 31a and a rear shell 31b, the front shell 31a and the rear shell 31b surround a cavity, the cavity is flat at the top, spindle-shaped at the middle and conical at the bottom, the shape of the cone core 32 matches the shape of the cavity, and a gap between the cone core 32 and the inner wall of the cavity is kept as a channel for guiding sound waves. Different from the first embodiment, the sound guide plate 33 in this embodiment is an integrated structure, the sound guide plate 33 has two arc-shaped plates 331 in the shape of an "eight", so that the sound waves can be output smoothly and the radiation angle of the sound waves is enlarged under the premise of reducing sound distortion. In this embodiment, the sound guide plate 33 is detachably connected to the top of the horn shell 31, which facilitates the assembly and disassembly of the sound guide plate 33 and the replacement of sound guide plates 33 of different sizes and specifications.

[0043] As preferred, as shown in the figure, Figures 5 to 8 The sound guide plate 33 includes two arc-shaped plates 331 arranged symmetrically and gradually inclined to both sides from bottom to top, and a connecting plate 332 connected between the two arc-shaped plates 331, and the two arc-shaped plates 331 sandwich to form a sound outlet channel 330 for sound propagation.

[0044] As preferred, as shown in the figure, Figures 5 to 8 The arc-shaped plate 331 is provided with a first mounting hole 333, the top of the horn shell 31 is provided with a second mounting hole 311 corresponding to the first mounting hole 333, and a screw is arranged in the first mounting hole 333 and the second mounting hole 311.

[0045] As preferred, as shown in the figure, Figures 5 to 8 The top of the horn shell 31 is provided with four supporting feet 312, the supporting feet 312 are provided with third mounting holes 313, and the top of the basin stand 1 is provided with fourth mounting holes 11 corresponding to the third mounting holes 313, and a screw is arranged in the third mounting holes 313 and the fourth mounting holes 11.

[0046] As preferred, as shown in the figure, Figure 9 The top of the cone core 32 is provided with a raised positioning plate 322, the inner walls of the front shell 31a and the rear shell 31b are provided with accommodating grooves 315, and the accommodating grooves 315 of the front shell 31a and the rear shell 31b surround to form a positioning accommodating cavity 316 matching the shape of the positioning plate 322 when the front shell 31a and the rear shell 31b are folded, so as to fix the cone core 32 in the cavity and reduce the blocking structure between the cone core 32 and the inner wall of the cavity to hinder the propagation of sound waves.

[0047] As preferred, as shown in the figure, Figure 8As shown, the front shell 31a and the rear shell 31b are provided with the insertion holes 317, the conical core 32 is provided with the insertion columns 323 capable of being inserted into the insertion holes 317, preferably, the front shell 31a and the rear shell 31b are connected with the cover plates 34 capable of covering the insertion holes 317, the outer surface profile of the cover plate 14 is smoothly transitioned with the outer surface profile of the horn single shell 314, so that the outer surface of the whole horn shell 31 is complete and smoothly transitioned, the sound scattering and distortion are reduced, the sound wave is smoothly transitioned, and the sound quality is improved.

[0048] The above is only the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of the claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A coaxial horn structure, characterized by: The utility model provides a kind of sound production device, including basin frame (1), the basin frame (1) is equipped with diaphragm (2), the basin frame (1) is connected with the horn assembly (3) of big lower small, the diaphragm (2) middle part has the installation passage (20) for the lower part of horn assembly (3) to penetrate, the horn assembly (3) includes horn shell (31) that is penetrated and big lower small, cone core (32) is equipped in horn shell (31), guide sound plate (33) is equipped in the top of horn shell (31), the bottom of horn shell (31) is stretched from the bottom of basin frame (1), the bottom of cone core (32) has conical bottom end guide sound part (320), the bottom end guide sound part (320) is stretched from the bottom of horn shell (31), the lower side of the basin frame (1) is connected with the sound production element (4) covered in the bottom of horn shell (31).

2. The coaxial horn structure of claim 1, wherein: The horn shell (31) is combined by front shell (31a) and rear shell (31b), the guide sound plate (33) is combined by front guide plate (33a) and rear guide plate (33b), and the front guide plate (33a) and the rear guide plate (33b) are clamped to form a sound outlet channel (330) for sound to be transmitted outward, the rear shell (31b) and the rear guide plate (33b) are integrally formed as a whole, and the front shell (31a) and the front guide plate (33a) are integrally formed as a whole.

3. The coaxial horn structure of claim 2, wherein: The bottom of the horn shell (31) is provided with external threads, and the bottom of the horn shell (31) is connected with a mounting sleeve (35), and the inner side of the mounting sleeve (35) is provided with internal threads matched with the external threads, and the mounting sleeve (35) surrounds the front shell (31a) and the rear shell (31b).

4. The coaxial horn structure of claim 1, wherein: The lower part of the horn shell (31) is conical.

5. The coaxial horn structure of claim 2, wherein: The bottom end guide sound part (320) has a spherical arc surface (321) at the lower end for sound guiding.

6. The coaxial horn structure of claim 1, wherein: The top of the horn shell (31) is provided with at least two supporting legs (312), and the supporting legs (312) are provided with third mounting holes (313), and the top of the basin frame (1) is provided with fourth mounting holes (11) corresponding to the third mounting holes (313).

7. The coaxial horn structure of claim 2, wherein: The top of the cone core (32) is provided with a raised positioning plate (322), and the inner walls of the front shell (31a) and the rear shell (31b) are provided with accommodating grooves (315), and when the front shell (31a) and the rear shell (31b) are folded, the accommodating grooves (315) of the two surround to form a positioning accommodating cavity (316) matched with the shape of the positioning plate (322).

8. The coaxial horn structure of claim 2, wherein: The front shell (31a) and the rear shell (31b) are provided with plug-in holes (317), and the two sides of the cone core (32) are provided with plug-in columns (323) capable of penetrating into the plug-in holes (317).

9. The coaxial horn structure of claim 8, wherein: The front shell (31a) and the rear shell (31b) are both connected with cover plates (34) capable of covering the plug-in holes (317), and the outer surface profile of the cover plates (34) smoothly transitions with the outer surface profile of the front shell (31a) and the rear shell (31b).

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