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CN-224218514-U - Constant-directivity horn

CN224218514UCN 224218514 UCN224218514 UCN 224218514UCN-224218514-U

Abstract

The utility model provides a constant-directivity horn, relates to the technical field of horns, and aims to solve the technical problems of uneven sound-amplifying coverage, relatively short transmission distance and relatively poor sound definition of the horn in the prior art; the utility model provides a constant orientation clarion, includes clarion body, and clarion body seals along circumference and includes two relative first lateral walls and two relative second lateral walls, and two first lateral wall intervals and two second lateral wall intervals all from the back progressively increase forward, all are equipped with the connection structure who is used for being connected with the bass unit on the outer wall of two first lateral walls, and the position that just corresponds connection structure on two first lateral walls is equipped with the sounding structure that supplies the bass unit to sound.

Inventors

  • XIONG YIJUN

Assignees

  • 音王电声股份有限公司

Dates

Publication Date
20260508
Application Date
20250414
Priority Date
20250114

Claims (9)

  1. 1. The utility model provides a constant orientation clarion, its characterized in that, includes clarion body (1), clarion body (1) is sealed along circumference and includes two relative first lateral wall (11) and two relative second lateral wall (12), two first lateral wall (11) interval and two second lateral wall (12) interval all from the back forward increase gradually, two all be equipped with on the outer wall of first lateral wall (11) be used for with the connection structure of bass unit connection, two on first lateral wall (11) and correspond to connection structure's position is equipped with the sound production structure that supplies the bass unit to take a sound.
  2. 2. The constant directivity horn according to claim 1, characterized in that the two first side walls (11) are arranged in bilateral symmetry, the two second side walls (12) are arranged in vertical symmetry, and the two connecting structures are arranged in bilateral symmetry.
  3. 3. Constant directivity horn according to claim 1, characterized in that the angle α of the two first side walls (11) ranges from 50 to 70 ° and the angle β of the two second side walls (12) ranges from 30 to 50 °.
  4. 4. A constant directivity horn according to claim 3, characterized in that the angle α of the two first side walls (11) is 60 ° and the angle β of the two second side walls (12) is 40 °.
  5. 5. The constant directivity horn according to claim 1, characterized in that the connection structure is a mounting frame (2) provided on the first side wall (11).
  6. 6. Constant directivity horn according to claim 1, characterized in that the sound-emitting structure is a mesh-like opening (3).
  7. 7. The constant directivity horn according to claim 1, characterized in that the rear end of the horn body (1) is provided with a connecting plate (4), and the connecting plate (4) is provided with a plurality of connecting posts (5).
  8. 8. Constant directivity horn according to claim 1, characterized in that the front outer side wall of the horn body (1) is provided with an annular flange (6).
  9. 9. Constant directivity horn according to claim 1, characterized in that the outer side wall of the horn body (1) is provided with an annular limiting plate (7).

Description

Constant-directivity horn Technical Field The utility model relates to the technical field of horns, in particular to a constant-orientation horn. Background The sound box is installed in schools, stadiums and other open squares, playgrounds and spaces to expand sound, and when the traditional sound expansion box expands sound in the scene, the sound transmission distance is not far enough, people at the far place cannot hear clear sound, the sound field is not uniformly covered, the sound definition is poor, and the overall sound quality is poor. In addition, all can have residential areas near school and stadium, and during the audio amplifier of outdoor stadium expanded sound, the sound that the audio amplifier sent except can cover in the stadium, also can transmit nearby residential areas simultaneously to the sound at audio amplifier back, seriously influences resident's daily life work and rest, produces noise and disturbs the people problem. One of the reasons for the above problems is that the directivity of the conventional horn used in such a speaker varies with frequency to cause uneven sound-spreading coverage, a short transmission distance, and poor coupling between middle and high-pitched and low-pitched units to cause poor sound definition. Disclosure of utility model Aiming at the defects of the prior art, the utility model aims to provide a constant-directivity horn so as to solve the technical problems of uneven horn sound-expanding coverage, relatively short transmission distance and relatively poor sound definition in the prior art. In order to solve the technical problems, the utility model provides a constant-directivity horn which comprises a horn body, wherein the horn body is sealed along the circumferential direction and comprises two opposite first side walls and two opposite second side walls, the distance between the two first side walls and the distance between the two second side walls are gradually increased from back to front, the outer walls of the two first side walls are respectively provided with a connecting structure for connecting with a bass unit, and sound producing structures for producing sound of the bass unit are arranged on the positions, corresponding to the connecting structures, of the two first side walls. After the structure is adopted, the constant-directivity horn has the advantages that the constant-directivity horn is used for controlling the directivity of medium and high frequencies, an included angle is formed between the first side wall and the second side wall, the concentrated transmission of sound in a specified direction is ensured, the diffusion of the sound beside or on the back is reduced, meanwhile, the transmission distance of the sound is longer, a bass unit can be connected to the horn body, the sound can be concentrated and transmitted through the constant-directivity horn, the sound amplifying effects of the medium and high frequencies and the low frequencies are more tightly combined, the higher bass output can be ensured in a compact sound box structure, the high-efficiency and directivity are realized, the sound on the front of the constant-directivity horn can be better concentrated and transmitted in a specific direction, the sound attenuation is slow and uniform, the difference between the close-range sound pressure level and the far-range sound pressure level is smaller, the sound keeps clear in a long-range, the sound on the back of the constant-directivity horn can be reduced to a certain extent, and the noise is reduced. As an improvement, the two first side walls are arranged in a bilateral symmetry manner, the two second side walls are arranged in an up-down symmetry manner, and the two connecting structures are arranged in a bilateral symmetry manner; with this structure, the directivity and directivity of sound can be further improved by the symmetrical arrangement. By adopting the structure, the specific horizontal and vertical coverage angles can lead middle and high tones to be effectively and intensively transmitted forwards, the bass attenuation is fast, the sound boxes can be more reasonably arranged, one sound box is arranged at intervals of about 15 meters, and the problem that the directivity of the traditional horn can cause uneven sound expansion coverage along with frequency change is also avoided. As an improvement, the included angle α of the two first side walls is 60 °, and the included angle β of the two second side walls is 40 °. The connecting structure is an installation frame arranged on the first side wall, and the structure has the advantages of simple structure and convenient installation. The sound generating structure is a net-shaped opening, which is beneficial to the generation of low-frequency sound and does not influence the middle-high frequency sound. By adopting the structure, the horn body is convenient to be connected with the loudspeaker box body. By adopting the structure, the horn bo