Array sound box
By employing a fan-shaped radial distribution of tweeters and a ring-shaped waveguide design for woofers in the speaker enclosure, the problem of small radiation range in traditional speaker enclosures is solved, achieving wider radiation and better beam control.
Patent Information
- Application Number
- CN202520367651.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing traditional line array speakers have a small radiation range and an overly concentrated beam, making it difficult to effectively widen the beam.
The tweeter's axis is distributed in a fan-shaped radial pattern in the left-right direction and in a symmetrical double-step structure with the middle at the back and the two sides in front in the front-back direction. Combined with the design of the woofer and waveguide phaser, including the annular waveguide tube and waveguide phaser, the high-frequency and mid-frequency radiation characteristics are optimized.
It effectively widens the radiation range of the speaker, reduces interference and divergence between tweeters, improves mid-frequency radiation efficiency, and controls beam spread and interference problems.
Smart Images
Figure CN223829446U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sound box technical field especially relates to an array sound box. BACKGROUND
[0002] Line array speaker is a kind of acoustic system by multiple loudspeaker units vertically arranged, although line array speaker is emitted by multiple loudspeaker units in vertical direction, can form the sound beam with stronger directivity;
[0003] However, the existing conventional line array speaker generally has the problems of too concentrated line array axial beam and small radiation range, and an array sound box capable of effectively widening the radiation range is needed. UTILITY MODEL CONTENTS
[0004] The utility model discloses a kind of array sound boxes to solve the problems of the prior art, can effectively widen the radiation range.
[0005] To achieve the above object, the technical scheme applied by the utility model is as follows: an array sound box, comprising multiple tweeters, the axis of each tweeter is located at the same horizontal height in the up-down direction, and the axis of each tweeter is distributed in a fan-shaped radiation pattern in the left-right direction.
[0006] Further improvement of the above scheme is that each tweeter has a symmetrical double-stair structure with the middle part in the back and the two sides in the front in the front-back direction.
[0007] Further improvement of the above scheme is that the utility model further comprises a plurality of bass speakers arranged behind the tweeters.
[0008] Further improvement of the above scheme is that the front end of each bass speaker is provided with a ring-shaped waveguide cylinder, and the ring-shaped waveguide cylinder is concentrically arranged with the corresponding bass speaker.
[0009] Further improvement of the above scheme is that the front end of each tweeter is provided with a waveguide phase adjuster, and the waveguide phase adjuster comprises a center phase cone and a plurality of waveguide ring walls.
[0010] Further improvement of the above scheme is that the front end of the center phase cone is a forwardly protruding conical structure, the inner side of each waveguide ring wall is a conical surface structure with a gradually increasing radius from back to front, and the outer side of the waveguide ring wall is a conical surface structure with a gradually decreasing radius from back to front.
[0011] Further improvement of the above scheme is that the angle between the central phase cone and the vertical plane is 30-45°, the angle between the inner side of each waveguide ring wall and the vertical plane is 50-80°, and the angle between the outer side of each waveguide ring wall and the vertical plane is 70-90°.
[0012] Further improvement of the above scheme is that a connecting rib is arranged between the central phase cone and the innermost waveguide ring wall, and a connecting rib is arranged between each adjacent waveguide ring wall; and an installation lug is arranged on the outer side of the outermost waveguide ring wall.
[0013] Further improvement of the above scheme is that the waveguide ring wall has three, which are an inner waveguide ring wall, an intermediate waveguide ring wall and an outer waveguide ring wall, and the inner waveguide ring wall, the intermediate waveguide ring wall and the outer waveguide ring wall are arranged from inside to outside.
[0014] Further improvement of the above scheme is that a plurality of sound transmission holes are formed on the central phase cone, the sound transmission holes are circular holes, and each sound transmission hole is located on the same circle.
[0015] The array sound box has the advantages that: the array sound box is provided, each high-frequency loudspeaker is arranged at the same horizontal height in the up-down direction, and the axes of the high-frequency loudspeakers are arranged in a fan-shaped radiation manner in the left-right direction.
[0016] Compared with the existing traditional linear array sound box, the axes of the high-frequency loudspeakers are arranged in a fan-shaped radiation manner in the left-right direction, so that the radiation range can be effectively widened, and the problem of too concentrated axial beam and small radiation range of the existing traditional linear array sound box can be avoided. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the utility model.
[0018] Figure 2 It is a structural schematic view of another view of the utility model.
[0019] Figure 3 It is a structural schematic view of the high-frequency loudspeaker and the waveguide phase adjuster.
[0020] Figure 4 It is a structural schematic view of the waveguide phase adjuster.
[0021] Mark explanation: high-frequency loudspeaker 1, support 11, conical drum paper 12, bass loudspeaker 2, annular waveguide cylinder 3, waveguide phase adjuster 4, central phase cone 41, waveguide ring wall 42, inner waveguide ring wall 421, intermediate waveguide ring wall 422, outer waveguide ring wall 423, connecting rib 43, installation lug 44, sound transmission hole 45. DETAILED DESCRIPTION:
[0022] The utility model makes further illustration in combination with the drawings, such as Figures 1-4 As shown in the utility model discloses a plurality of tweeter 1, the axis of each tweeter 1 is located at the same horizontal height in the up-down direction, and the axis of each tweeter 1 is distributed and arranged in a fan-shaped radiation pattern in the left-right direction. Compared with the existing traditional linear array speaker, the utility model can effectively widen the radiation range and avoid the problem of excessive concentration of the existing traditional linear array axial beam and small radiation range by distributing and arranging the axis of each tweeter 1 in a fan-shaped radiation pattern in the left-right direction.
[0023] Each tweeter 1 is in a symmetrical double-staircase structure with the middle part in the back and the two sides in the front in the front-back direction. By adjusting the front-back position of each tweeter 1 and making the high sound emitting vertex of each tweeter 1 on a line, a linear array is formed between each tweeter 1, and the high sound emitting propagation is in a cylindrical wave radiation mode, so that the sound attenuation is small in a short distance and the propagation distance is farther.
[0024] The utility model also includes a plurality of bass speakers 2 arranged behind the tweeter 1, which can cover more frequency band sounds. In the embodiment, two bass speakers 2 are arranged. The front end of each bass speaker 2 is provided with a ring-shaped waveguide cylinder 3, and the ring-shaped waveguide cylinder 3 is concentrically arranged with the corresponding bass speaker 2. By adding the concentrically arranged ring-shaped waveguide cylinder 3 at the front end of the bass speaker 2, the mid-frequency radiation efficiency and control can be effectively improved, the divergent beam can be reduced, and the mutual interference of each bass speaker 2 in the midrange area can be reduced.
[0025] The front end of each tweeter 1 is provided with a waveguide phase adjuster 4, and the waveguide phase adjuster 4 includes a center phase cone 41 and a plurality of waveguide ring walls 42. The center phase cone 41 and each waveguide ring wall 42 are distributed in a concentric circle, and the center phase cone 41 is located at the center position. By adding the waveguide phase adjuster 4 at the front end of the tweeter 1, the high-frequency beam characteristics can be effectively controlled, the divergent beam can be reduced, and the comb-shaped distortion of the mutual interference between the tweeters 1 can be effectively reduced.
[0026] The front end of the center phase cone 41 is a forwardly protruding conical structure, the inner side of each waveguide ring wall 42 is a conical surface structure with a gradually increasing radius from back to front, and the outer side of the waveguide ring wall 42 is a conical surface structure with a gradually decreasing radius from back to front, which can better form a beam reflection.
[0027] The included angle between the central phase cone 41 and the vertical plane is preferably 30-45°, the included angle between the inner side of each waveguide ring wall 42 and the vertical plane is preferably 50-80°, and the included angle between the outer side of each waveguide ring wall 42 and the vertical plane is preferably 70-90°, which is more optimal for the diffusion width of the beam and better controls the beam and reduces interference problems.
[0028] The central phase cone 41 is provided with a connecting rib 43 between the innermost waveguide ring wall 42, and a connecting rib 43 is respectively provided between each adjacent waveguide ring wall 42, which not only integrally connects the whole, but also facilitates assembly and ensures the relative positions of the central phase cone 41 and each waveguide ring wall 42, thereby better ensuring beam control.
[0029] The waveguide ring wall 42 preferably has three, which are an inner waveguide ring wall 421, a middle waveguide ring wall 422, and an outer waveguide ring wall 423, which are sequentially arranged from inside to outside, and the overall effect is better.
[0030] The central phase cone 41 is formed with a plurality of sound transmission holes 45, and the sound transmission holes 45 in the embodiment have six, which are circular holes, and each sound transmission hole 45 is located on the same circle, and the sound transmission holes 45 are arranged on the central phase cone 41 to improve the flatness of the frequency response curve of the loudspeaker in the ultrahigh frequency and reduce the ultrahigh frequency distortion, and the specific frequency sound is adjusted by adjusting the shape and position of the sound transmission hole 45, so as to better improve the attenuation problem caused by the shielding of the central phase cone 41.
[0031] Of course, the above is only a preferred embodiment of the present application, so any equivalent changes or modifications made in accordance with the structure, features and principles of the present application patent application range are included in the present application patent application range.
Claims
1. An array speaker, comprising a plurality of tweeters (1), characterized in that: The axes of each of the tweeters (1) are at the same horizontal height in the vertical direction, and the axes of each tweeter (1) are arranged in a fan-shaped radial pattern in the horizontal direction.
2. The array speaker according to claim 1, characterized in that: Each of the tweeters (1) has a symmetrical double-step structure with the middle at the back and the two sides at the front in the front-back direction.
3. The array speaker according to claim 1, characterized in that: It also includes several woofers (2) located behind the tweeter (1).
4. An array speaker according to claim 3, characterized in that: Each of the aforementioned subwoofers (2) has an annular waveguide tube (3) at its front end, and the annular waveguide tube (3) is concentrically arranged with the corresponding subwoofer (2).
5. An array speaker according to any one of claims 1-4, characterized in that: Each of the tweeters (1) is provided with a waveguide phaser (4) at its front end. The waveguide phaser (4) includes a central phase cone (41) and several waveguide ring walls (42). The central phase cone (41) and each waveguide ring wall (42) are arranged in concentric circles, with the central phase cone (41) located at the very center.
6. An array speaker according to claim 5, characterized in that: The front end of the central phase cone (41) is a cone-shaped structure that bulges forward. The inner side of each waveguide ring wall (42) is a cone-shaped structure with a radius that gradually increases from back to front, and the outer side of the waveguide ring wall (42) is a cone-shaped structure with a radius that gradually decreases from back to front.
7. An array speaker according to claim 6, characterized in that: The angle between the central phase cone (41) and the vertical plane is 30-45°, the angle between the inner side of each waveguide ring wall (42) and the vertical plane is 50-80°, and the angle between the outer side of each waveguide ring wall (42) and the vertical plane is 70-90°.
8. An array speaker according to claim 5, characterized in that: A connecting rib (43) is provided between the central phase cone (41) and the innermost waveguide ring wall (42), and a connecting rib (43) is provided between each adjacent waveguide ring wall (42); a mounting ear (44) is provided on the outer side of the outermost waveguide ring wall (42).
9. An array speaker according to claim 5, characterized in that: There are three waveguide ring walls (42), namely the inner waveguide ring wall (421), the middle waveguide ring wall (422), and the outer waveguide ring wall (423). The inner waveguide ring wall (421), the middle waveguide ring wall (422), and the outer waveguide ring wall (423) are arranged sequentially from the inside to the outside.
10. An array speaker according to claim 5, characterized in that: The central phase cone (41) has multiple sound-permeable holes (45) formed on it. The sound-permeable holes (45) are circular holes, and each sound-permeable hole (45) is located on the same circumference.