CN109462784B

CN109462784B - Array loudspeaker box with compression design

Info

Publication number: CN109462784B
Application number: CN201811486708.7A
Authority: CN
Inventors: 闫峻; 金东曙; 张屹
Original assignee: Ningbo Tonwel Audio Co ltd
Current assignee: Ningbo Tonwel Audio Co ltd
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2023-09-08
Anticipated expiration: 2038-12-06
Also published as: CN109462784A

Abstract

The invention provides an array sound box with a compression design, which comprises a sound box theme and a loudspeaker assembly arranged on the sound box main body, wherein the loudspeaker assembly comprises a mounting bracket, a plurality of loudspeakers fixed on the mounting bracket and a plurality of compressors fixed on the mounting bracket and positioned at the upper ends of the loudspeakers in one-to-one correspondence, each compressor comprises a first compression part arranged at the upper ends of the compression parts and a second compression part arranged at the upper ends of the first compression parts, each first compression part comprises a first frame body, first compression plates are arranged on two sides of the first frame body, a certain gap is reserved between each first compression plate and each loudspeaker to form an airflow channel, and the side surfaces of the two second compression plates are in one-to-one correspondence and respectively abutted against the inner parts of the two first compression plates to form a throat communicated with the airflow channel. When the loudspeaker box works, the compressor arranged on the loudspeaker can compress the medium-high pressure, so that the pointing angle of sound is enlarged.

Description

Array loudspeaker box with compression design

Technical Field

The invention relates to the field of sound boxes, in particular to an array sound box with a compression design.

Background

Because all speakers have certain directivity, especially high-pitched speakers, the listeners right in front of the sound box are quite different from the listeners on the two sides of the sound box, and the performance design of the current sound box is mainly used for taking care of the listeners right in front of the sound box, so that the listeners on the two sides cannot obtain the best sound effect.

Disclosure of Invention

The technical scheme of the invention is as follows: the utility model provides an array audio amplifier of area compression design, includes audio amplifier theme and the speaker subassembly of setting on the audio amplifier main part, speaker subassembly includes the installing support, a plurality of is fixed the speaker on the installing support, and fix on the installing support and a plurality of compressor that one-to-one is located the speaker upper end, the compressor is including arranging in the first compression spare of compression spare upper end and arranging in the second compression spare of first compression spare upper end, first compression spare includes first framework, the both sides of first framework all are provided with first compression board, first compression board with there is certain clearance in order to form airflow channel between the speaker, the second compression spare includes the second framework and is located two second compression boards on the second framework, two the side of second compression board one-to-one respectively the butt is in the inside of two first compression boards, forms a throat with airflow channel UNICOM, the diameter of throat is towards keeping away from the direction of speaker diminishing more and more. When the sound box main body works, sound diverges through the loudspeaker, and the compressor arranged on the loudspeaker can compress the medium-high pressure, so that the pointing angle of the sound is enlarged.

Preferably, an air flow column with a hollow structure is arranged at the center of the first compression piece, and the air flow column is inserted into the throat. Part of the air flow flows out of the air flow column, so that the phenomenon that the sound curve is suddenly high and low after the air flow is excessively compressed by the compressor is avoided.

Preferably, the first compression plate has an arch structure and is matched with the upper surface of the loudspeaker. The upper surface of the loudspeaker presents a concave structure, so the corresponding first compression plate presents an arch structure, thereby ensuring that the first compression plate is matched with the upper surface of the loudspeaker and ensuring the smoothness of the airflow channel.

Preferably, the upper end of the first compression member is provided with a plurality of mounting holes, the lower end of the second compression member is provided with a plurality of mounting columns, and the mounting columns are inserted into the mounting holes in a one-to-one correspondence manner.

Preferably, the total height of the laryngeal passageway is 1 to 1.5mm.

Preferably, the area of the bottom of the throat accounts for 35% -45% of the upper surface of the loudspeaker.

Preferably, the mounting bracket is provided with a plurality of mounting grooves, and the speakers are fixedly mounted in the mounting grooves in a one-to-one correspondence manner.

The technical scheme has the following advantages or beneficial effects: through the comparison test of the system, the data is obtained that the left and right deflection angle of sound divergence is 45 degrees (total angle 90 degrees) in the prior art without compression design test, and the left and right and middle comparison is expected to attenuate more than 7dB. The test after the compression design shows that the data is that the left and right deflection angles of sound divergence are at 90 degrees (total angle is 180 degrees), the number of times is about and the middle comparison expected attenuation exceeds 5dB, and the comparison expected attenuation is about and the middle comparison expected attenuation exceeds 3dB when the left and right deflection angles are at 45 degrees (total angle is 90 degrees). Therefore, by the compression design of the loudspeaker 1, the pointing angle is greatly improved, and the listeners on the front and the two sides can obtain the best sound effect at the same time.

Drawings

Embodiments of the present invention will now be described more fully with reference to the accompanying drawings. The drawings, however, are for illustration and description only and are not intended as a definition of the limits of the invention.

FIG. 1 is an exploded view of a portion of an array loudspeaker with a compressed design according to the present invention;

fig. 2 is a schematic structural diagram of a first compression member 31 in an array speaker with compression design according to the present invention;

FIG. 3 is a schematic diagram of a second compression member 32 in an array speaker with compression design according to the present invention;

FIG. 4 is a partial cross-sectional view of an array speaker with a compressed design in accordance with the present invention;

FIG. 5 is a side view of decibel curves of an array speaker sound at different angles without a compressed design;

FIG. 6 is a graph of test of decibel curves of sound emission at different angles for an array speaker with a compressed design according to the present invention;

FIG. 7 is a side view of a decibel plot of an array speaker with a compressed design of the present invention sounding at 0 and 45;

FIG. 8 is a side view of a decibel plot of an array speaker with a compressed design of the present invention sounding at 0 and 60;

FIG. 9 is a side view of a decibel plot of an array speaker with a compressed design of the present invention sounding at 0 and 75;

FIG. 10 is a side view of a decibel plot of an array speaker with a compressed design of the present invention sounding at 0 and 90;

in the accompanying drawings: 1. a speaker; 2. a mounting bracket; 31. a first compression member; 311. a first frame; 312. a first compression plate; 313. an airflow column; 314. a mounting hole; 32. a second compression member; 321. a second frame; 322. a second compression plate; 323. a mounting column; 33. an air flow channel; 34. a laryngeal opening.

Detailed Description

The array loudspeaker box with the compression design is described in detail below with reference to the accompanying drawings and the specific embodiments.

As shown in FIG. 1, an array loudspeaker box with a compression design comprises a loudspeaker box main body and a loudspeaker assembly arranged on the loudspeaker box main body, wherein the loudspeaker assembly comprises a plurality of loudspeakers 1, a mounting bracket 2 and a plurality of compressors, a plurality of mounting grooves are formed in the mounting bracket 2, the loudspeakers 1 are fixedly arranged in the mounting grooves in a one-to-one correspondence manner, each loudspeaker 1 is provided with a compressor, and the compressors are arranged at the upper ends of the loudspeakers 1 and are fixed on the mounting bracket 2. When the sound box main body works, sound is dispersed through the loudspeaker 1, and the compressor arranged on the loudspeaker 1 can compress the medium-high pressure, so that the pointing angle of the sound is enlarged.

Further, the compressor includes a first compressing member 31 and a second compressing member 32, the first compressing member 31 being disposed at an upper end of the speaker 1, and the second compressing member 32 being disposed at an upper end of the first compressing member 31.

Further, as shown in fig. 2, the first compressing member 31 includes a first frame 311 and an airflow post 313 located in the first frame 311. The first compression plates 312 are provided on both sides of the first frame 311, and a certain gap is provided between the first compression plates 312 and the speaker 1, thereby forming the airflow passage 33.

Further, since the upper surface of the speaker 1 has a concave structure, the corresponding first compression plate 312 has an arch structure, so as to ensure that the first compression plate 312 is matched with the upper surface of the speaker 1, and ensure that the air flow channel 33 is unblocked.

Further, as shown in fig. 3, the second compressing member 32 includes a second frame 321 and two second compressing plates 322 located on the second frame 321, and the sides of the two second compressing plates 322 are in one-to-one correspondence and respectively abutted against the inner sides of the two first compressing plates 312 to form a throat 34, and the diameter of the throat 34 is smaller and smaller in a direction away from the speaker 1 due to the inclined shape of the two second compressing plates 322. In this way, the sound air flow is compressed, so that the air flow after passing through the throat 34 is spread outwards, thereby improving the sound direction angle, so that the final sound angle emitted from the whole loudspeaker 1 is wider and less depleted.

Further, as shown in fig. 4, an airflow column 313 is disposed at the center of the first compressing element 31, the airflow column 313 is hollow and inserted into the throat 34, and a part of airflow flows out of the airflow column 313, so as to avoid the sound curve from rising and falling after the airflow is compressed too much by the compressor.

Further, the upper end of the first compression member 31 is provided with a plurality of mounting holes 314, and correspondingly, the lower end of the second compression member 32 is provided with a plurality of mounting columns 323, and the mounting columns 323 are inserted into the mounting holes 314 in a one-to-one correspondence manner, so that the second compression member 32 is fixed.

Further, the compression distance of the high-pitch compressor is 1-1.5 mm, the compression distance of the middle-high pitch compressor is 4-6 mm, the compression ratio is about 55% -65%, and the opening area is about 35% -45%.

The design greatly improves the pointing angle of the loudspeaker 1 by compressing the loudspeaker 1, the design is better than the design that when a lot of flowing water is collected in a narrow river channel, the flowing water is more rapid, the flowing water is free from the ratio below the front, the water can be instantly diffused around the box, the sound is also the same, the sound can be diffused in a certain direction along the direction of the vibrating diaphragm before being compressed, the sound is more rapidly diffused around after being compressed in a narrow channel which is better than the sound collected in other places after being compressed, and the sound is not hindered after the sound passes through the channel. This greatly increases the radiation angle.

Fig. 5 shows test curves for a loudspeaker without a compressed design, and fig. 6-10 show loudspeaker test curves for a loudspeaker with a compressed design under various conditions. Through the comparison test of the system, the data is obtained that the left and right deflection angle of sound divergence is 45 degrees (total angle 90 degrees) in the prior art without compression design test, and the left and right and middle comparison is expected to attenuate more than 7dB. The test after the compression design shows that the data is that the left and right deflection angles of sound divergence are at 90 degrees (total angle is 180 degrees), the number of times is about and the middle comparison expected attenuation exceeds 5dB, and the comparison expected attenuation is about and the middle comparison expected attenuation exceeds 3dB when the left and right deflection angles are at 45 degrees (total angle is 90 degrees). Therefore, by the compression design of the loudspeaker 1, the pointing angle is greatly improved, and the listeners on the front and the two sides can obtain the best sound effect at the same time.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalents and alternatives falling within the scope of the claims are intended to be embraced therein.

Claims

1. The array loudspeaker box with the compression design comprises a loudspeaker box body and a loudspeaker assembly arranged on the loudspeaker box body, and is characterized in that the loudspeaker assembly comprises a mounting bracket (2), a plurality of loudspeakers (1) fixed on the mounting bracket (2) and a plurality of compressors fixed on the mounting bracket (2) and located at the upper end of the loudspeakers (1) in a one-to-one correspondence manner, each compressor comprises a first compression piece (31) arranged at the upper end of the loudspeakers (1) and a second compression piece (32) arranged at the upper end of the first compression piece (31), each first compression piece (31) comprises a first frame body (311), first compression plates (312) are arranged on two sides of each first frame body (311), a certain gap is reserved between each first compression plate (312) and each loudspeaker (1) to form an airflow channel (33), each second compression piece (32) comprises a second frame body (321) and two second compression plates (322) located on the second frame body (321), and the two compression plates (322) are in one-to-one correspondence manner, and the two compression plates (322) are in a smaller diameter direction and far away from the one throat opening (34) of the loudspeakers (34); the first compression plate (312) is in an arch structure and is matched with the upper surface of the loudspeaker (1); the loudspeaker is characterized in that a plurality of mounting grooves are formed in the mounting support (2), and the loudspeakers (1) are fixedly mounted in the mounting grooves in a one-to-one correspondence mode.

2. Array loudspeaker box with compressed design according to claim 1, characterized in that the first compression member (31) is provided with an air flow column (313) with hollow structure in the center, the air flow column (313) being inserted into the throat (34).

3. The array loudspeaker box with the compressed design according to claim 1, wherein a plurality of mounting holes (314) are formed in the upper end of the first compression member (31), a plurality of mounting columns (323) are formed in the lower end of the second compression member (32), and the mounting columns (323) are inserted into the mounting holes (314) in a one-to-one correspondence.

4. Array sound box with compressed design according to claim 1, characterized in that the total height of the throat (34) channels is 1-1.5 mm.

5. The array loudspeaker box with the compressed design according to claim 1, wherein the area of the bottom of the throat (34) is 35% -45% of the upper surface of the loudspeaker (1).