Linear array miniature loudspeaker capable of expanding directivity

Abstract

The utility model relates to the technical field of sound reinforcement, in particular to a linear array micro loudspeaker capable of expanding directivity, which can independently control the waveguide of the radiation angle of each high-pitch loudspeaker, and the high-pitch loudspeakers radiate towards different directions, so that the sound coverage range is wider; comprising a supporting part, the height of the supporting part is continuously and gently decreased from the middle to the two ends, a first loudspeaker is arranged in the central area of the supporting part, the supporting part is further provided with two second loudspeakers, and the two second loudspeakers are located on the two sides of the first loudspeaker respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of sound reinforcement, in particular to a linear array micro loudspeaker with expanded directivity. Background Art

[0002] At present, the widely used linear arrays in the field of sound reinforcement usually need to use complex waveguides and other sound-guiding structures to limit the high-frequency directivity of a single speaker, reduce the phase interference of the high-frequency part between multiple speakers, and avoid deteriorating the sound quality. However, since the waveguide structure is too complex, it can basically not be used on micro-speaker linear arrays. Therefore, the micro-speaker linear arrays on the market are usually simple arrangement units, and no effective measures are taken to reduce the phase interference of the high-frequency part. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a linear array micro-speaker with extended directivity, which can individually control the waveguide of the radiation angle of each tweeter. The tweeters radiate in different directions, so that the sound coverage range is wider.

[0004] The utility model discloses a linear array micro loudspeaker with extended directivity, comprising a support portion, wherein the height of the support portion shows a continuous and gently decreasing change from the middle portion to both ends, a loudspeaker 1 is arranged in the central area of ​​the support portion, and two loudspeakers 2 are also arranged in the support portion.

[0005] Furthermore, the speaker 1 and the two speakers 2 are arranged side by side along the length direction of the support part.

[0006] Furthermore, the acoustic axis projection direction of the loudspeaker 1 is toward directly above the supporting part.

[0007] Furthermore, the sound axis projection directions of the two loudspeakers 2 are away from the middle of the supporting part.

[0008] Furthermore, the two loudspeakers 2 are respectively located on both sides of the loudspeaker 1.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the supporting part is a curved panel, which is used to control the radiation angle of the speaker of the linear array and can also be used as a mounting panel of the speaker. The curvature of the curved panel can individually control the waveguide of the radiation angle of each tweeter, and the tweeters radiate in different directions, so that the sound coverage range is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 yes Figure 1 A top view of

[0012] Figure 3 yes Figure 1 A front view of

[0013] Figure 4 yes Figure 1 sectional view of

[0014] Markings in the accompanying drawings: 1, supporting part; 2, speaker 1; 3, speaker 2. DETAILED DESCRIPTION

[0015] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0016] like Figures 1 to 4 As shown, a linear array micro-speaker with extended directivity of the utility model comprises a support portion 1, the height of the support portion 1 shows a continuous and gently decreasing change from the middle to both ends, a speaker 1 2 is arranged in the central area of ​​the support portion 1, and two speakers 2 3 are also arranged on the support portion 1. The support portion 1 is an arc-shaped panel, and the speaker 1 2 and the two speakers 2 3 are all micro-speakers.

[0017] Furthermore, the speaker 1 2 and the two speakers 2 3 are arranged side by side along the length direction of the support part 1 .

[0018] Furthermore, the acoustic axis projection direction of the loudspeaker 2 is toward directly above the supporting part 1 .

[0019] Furthermore, if Figure 4 As shown, the sound axis projection directions of the two loudspeakers 2 3 are away from the middle of the supporting part 1 .

[0020] Furthermore, the two loudspeakers 2 3 are respectively located on both sides of the loudspeaker 1 2 .

[0021] The utility model discloses a linear array micro speaker with extended directivity. When the device is working, based on the principle that the more the directivity of the speaker tends to high frequency, the narrower the directivity is, by changing the projection direction of the sound axis of each speaker, the phase interference is reduced above the appropriate frequency and the sound quality is improved. Since the projection direction of the sound axis of each speaker is different, the directivity of the speaker linear array is expanded at the same time, making its application more extensive. The general treble radiation angle exceeds 90° and can even reach 120°. The device controls the radiation angle of the treble to less than 50° through the waveguide in front of each treble.

[0022] When the linear array is installed vertically, the 50° radiation angle of the tweeter will still cause comb filtering in the high frequency band. Therefore, it is necessary to radiate the tweeter in different directions through the support part 1. Through the overall support part 1 and the separate waveguide of each tweeter, the sound wave interference phenomenon in the high frequency band can be reduced to the point where it no longer affects the timbre.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A linear array micro speaker with extended directivity, characterized in that: The invention comprises a support part (1), wherein the height of the support part (1) shows a continuous and gently decreasing change from the middle part to the two ends, a loudspeaker 1 (2) is arranged in the central area of ​​the support part (1), and the support part (1) is also provided with two loudspeakers 2 (3).

2. A linear array micro-speaker with extended directivity as claimed in claim 1, characterized in that: The loudspeaker 1 (2) and the two loudspeakers 2 (3) are arranged side by side along the length direction of the support part (1).

3. A linear array micro-speaker with extended directivity as claimed in claim 2, characterized in that: The sound axis projection direction of the loudspeaker 1 (2) is toward the top of the support part (1).

4. A linear array micro-speaker with extended directivity as claimed in claim 3, characterized in that: The sound axis projection directions of the two loudspeakers 2 (3) are away from the middle of the supporting part (1).

5. A linear array micro-speaker with extended directivity as claimed in claim 4, characterized in that: The two speakers 2 (3) are located on both sides of the speaker 1 (2).

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