CN212909991U - Linear array three-frequency-division sound box - Google Patents

Abstract

The utility model provides a three frequency division audio amplifier of linear array belongs to audio amplifier structure field. The utility model discloses a box, be equipped with bass unit, well sound unit and high pitch unit in the box, bass unit's quantity is two, wherein, two bass unit's middle part is located to well sound unit, high pitch unit locates the middle part of well sound unit. The utility model has the advantages that: synchronous propagation, the location is accurate, and the position separately of making sound is also difficult for the confusion, and sound is clear transparent to the problem of phase deviation has been solved, and the confusion appears in avoiding sound.

Description

Linear array three-frequency-division sound box

Technical Field

The utility model relates to a sound box structure especially relates to a three frequency division audio amplifier of linear array.

Background

The music replay frequency band of a single loudspeaker has a certain width, and generally cannot completely meet the wide range of 20-20 kHz of human ears, so that most of the existing sound boxes adopt high and low loudspeakers to respectively replay respective frequency bands and then synthesize the whole music, and a structure of three loudspeakers, namely a high loudspeaker, a middle loudspeaker and a low loudspeaker, is adopted to meet the requirement of music replay.

However, since the treble unit and the bass unit are arranged on the panel of the cabinet in a plane, their sound emission centers cannot coincide with each other at a point, and thus, there is a difference in the distances from the treble and bass sounds to the listener, which causes a phase deviation to affect the correct reproduction of the sound image, resulting in a disorder of the sound.

SUMMERY OF THE UTILITY MODEL

For solving phase deviation among the prior art to influence the correct reduction of audio-visual, cause the chaotic technical problem of sound, the utility model provides a linear array three-frequency-division sound box.

The utility model discloses a box, be equipped with bass unit, well sound unit and high pitch unit in the box, bass unit's quantity is two, wherein, two bass unit's middle part is located to well sound unit, high pitch unit locates the middle part of well sound unit.

The utility model discloses make further improvement, the high pitch unit is located in the middle pitch bugle of middle pitch unit, the high pitch unit with the direction of throwing of middle pitch unit is unanimous, just the high pitch unit with the line of throwing of middle pitch unit is same axis, the middle pitch bugle is located two the middle part of bass unit, the axis and two of middle pitch bugle the axis coincidence of bass unit.

The utility model discloses make further improvement, be equipped with cavity and baffle in the box, well sound bugle sets up with the baffle is integrative, the baffle will 2 bass cavities and a well sound cavity are cut apart to the cavity.

The utility model discloses make further improvement, the well sound compression drive unit setting of well sound unit is in the well sound cavity, and with the compression mouth of well sound bugle meets, the high pitch unit include high pitch compression unit and with high pitch compression unit fixed connection's high pitch bugle.

Further, the high pitch horn is double-end high pitch horn, the quantity of high pitch compression unit is two, the high pitch horn be respectively with two high pitch compression unit fixed connection's double-end high pitch horn.

The utility model discloses do further improvement, the well sound compression drive unit the front end the compression mouth department at well sound bugle is equipped with the phase place stopper.

The utility model discloses do further improvement, still including setting up the mounting panel of middle sound bugle both sides, certain angle setting, bass unit's horn mouth is installed on the mounting panel, the vocal passageway of middle sound unit is located treble unit's both sides, bass unit's vocal passageway is located the both sides of middle sound unit.

The utility model discloses make further improvement, the triplex is split into to the terminal surface before the box, and wherein, well sound unit and high pitch unit set up at the middle part, and two bass unit symmetries respectively set up the both sides of well sound unit and high pitch unit.

The utility model discloses make further improvement, the terminal surface is equipped with the face guard before the box, the face guard is including setting up the screen panel in the outside and setting up the dustproof sponge of screen panel medial surface.

The utility model discloses make further improvement, the box both sides still are equipped with handle and decoration panel, the box rear end face still is equipped with the attacker.

The utility model discloses make further improvement, the box top surface is equipped with hoist and mount piece.

Compared with the prior art, the beneficial effects of the utility model are that: the axis that utility model's own frequency was propagated is same axis, and the synchronous propagation fixes a position accurately, and the acoustics the central axis that has guaranteed high, well, bass is same line, and the propagation phase place fidelity of the full range sound of high, well, bass is high, and the position separately of making sound is also difficult chaotic, and sound is clear transparent to the problem of phase deviation has been solved, and the confusion appears in avoiding sound.

Drawings

Fig. 1 and fig. 2 are schematic structural views of the present invention;

FIG. 3 is a schematic view of the rear structure of the mask with the front face removed;

FIG. 4 is a transverse middle section view of the present invention;

fig. 5 and 6 are schematic diagrams of the treble unit structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, the utility model discloses a box, the preceding terminal surface of box is equipped with face guard 12, face guard 12 is including setting up the screen panel in the outside and setting up the dustproof sponge of screen panel medial surface, and wherein, the screen panel of this example adopts 1.5 thick cold rolled sheet, and dustproof sponge directly pastes at the cold rolled sheet inboard. Decorative panels 11 are symmetrically arranged on two side surfaces of the box body respectively, and the decorative panels 11 can be provided with company trademarks or other character patterns. Two side surfaces of the case are respectively provided with 2 handles 8, and the rear end surface of the case body is also provided with a buckle 9, so that the case is convenient to carry flexibly.

The terminal surface is cut apart into the triplex before the box, and wherein, well sound unit and high pitch unit set up in the middle part, and two bass units set up respectively the both sides of well sound unit and high pitch unit.

The linear array three-frequency-division sound box of the embodiment is also provided with a complete hoisting piece, and the hoisting piece of the embodiment comprises an adjustable three-point hoisting structure 10 which is used for various field deductions. The rear end face is provided with the mounting groove, the mounting height and the mounting angle can be adjusted according to requirements, and the upper end face and the lower end face of the lifting structure are arranged horizontally, so that the back lifting structure of the lifting structure is hinged to the two sides of the mounting groove through the rotating shaft, the lifting structure can be adjusted by 0-10 degrees when lifted or landed, the landing is more stable, the rear end face with the height smaller than the front end face can be slowly landed or slowly lifted, and the design is more humanized.

As shown in fig. 3 and 4, 2 bass units 4, two middle units 6 and 2 treble units are arranged in the case of the present embodiment, wherein the middle units 6 are arranged in the middle of the two bass units 4, and the 2 treble units are arranged in parallel in the middle of the middle unit 6.

As shown in fig. 5 and 6, as a preferred embodiment of the present example, the 2 tweeter units of the present example include two tweeter compression units 5 and two tweeter horns 13, wherein the tweeter compression units 5 are fixedly connected to the two tweeter horns 13, and each tweeter unit has an outlet of 1.4 inches. Two high pitch unit locate side by side in the bugle 3 of well sound unit 6, 2 high pitch unit with the direction of throwing of well sound unit 6 is unanimous, just 2 high pitch unit with the line of throwing of well sound unit 6 is same axis, well sound bugle is located two the middle part of bass unit 4, the axis and two of well sound bugle the axis coincidence of bass unit 4.

As an embodiment of the utility model, be equipped with cavity and baffle in the box of this example, the mediant bugle sets up with the baffle is integrative, the baffle will 2 bass cavities 1 and a mediant cavity 2 are split into to the cavity.

The middle sound compression driving unit of the middle sound unit 6 in this example is provided in the middle sound chamber 2 and is connected to the compression port of the middle sound horn.

This example still includes the setting and is in the mounting panel of well sound horn both sides, certain angle setting, bass unit 4's horn mouth is installed on the mounting panel, well sound production passageway of sound unit 6 is located 2 treble unit's both sides, bass unit 4's sound production passageway is located well sound unit 6's both sides.

Compared with the prior art, the utility model discloses the axis of the frequency propagation of linear array three-frequency-division sound box is same axis, and the synchronous propagation, the location is accurate, and the acoustics the central axis of having guaranteed high, well, bass is same line, and the propagation phase place fidelity of the full range sound of high, well, bass is high, and the position separately of making sound is also difficult chaotic, and sound is clear transparent to the problem of phase deviation has been solved, and it is chaotic to avoid sound to appear.

The three-frequency-division array sound box is a box body design which is high in performance, high in power, high in directivity, light in weight, multipurpose and very compact, is the latest innovation in the light linear array technology, and combines the scheme of coaxial installation and coaxial waveguide horn design for medium and high sound. Through the center coaxial design of superposing medium-high frequency sound and low-frequency sound, the virtual point sound source brings and obviously improves the radiation characteristic. This is a unique design of the coaxial design that enables most listeners to perceive the sound source in distributed public address applications. Since the on-axis listening sensation makes the sound field more stable, all listeners in the entire spectrum can benefit from a wider angle while providing a uniform sound presentation. The high-sound-pressure-output-simultaneous good feedback inhibition is realized, the high-sound-pressure-output-simultaneous good feedback inhibition has strong presence feeling, excellent definition and balance feeling, and the virtual point sound source brings remarkable improvement on radiation characteristics through the central coaxial design of superimposed medium-high frequency sound and low-frequency sound. This is a unique design of the coaxial design that enables most listeners to perceive the sound source in distributed public address applications. Since the on-axis listening sensation makes the sound field more stable, all listeners in the entire spectrum can benefit from a wider angle while providing a uniform sound presentation. The high-sound-pressure output is realized, the feedback is well inhibited, and the high-sound-pressure output microphone has strong presence feeling, excellent definition and balance feeling.

The utility model discloses it provides powerful output to arrange the array of line triple frequency division audio amplifier, excellent performance, compact, the installation of being convenient for. Each enclosure includes a 2.5 inch voice coil treble compression driver unit 5 and a 1 10 inch midrange unit 6 with a 2.5 inch voice coil, integrated through a common horn, occupying the entire front side of the enclosure of the cabinet. The phase plug 7 is arranged in front of the middle voice unit 6, the middle voice horn of the sound box phase plug effectively improves the available output of the middle voice driver, expands the working bandwidth of the middle frequency, avoids frequency overlapping distortion and phase distortion caused by frequency division, keeps the consistency of the middle frequency tone and effectively improves the middle voice response characteristic. 2 bass units 4 are arranged on two side edges, so that signals can be conveniently and accurately transmitted in each part of the system. Either directly below the array or hundreds of feet away, a complete set of three-frequency-division arrays can achieve seamless coverage. Vertical output is adjusted by changing a hoisting structure behind the box body, and different application requirements are met. The combined configuration can continuously generate a continuous, interference-free wavefront, with these high-resolution audio signals covering the entire target area. Unlike other linear arrays, linear array triplexer can maintain smooth consistent sound as the listener moves in an on-axis or off-axis position. Has wide application and expands the application range. Except for an impressive low frequency output.

The utility model has the characteristics of superstrong power output, the box is light compact etc, has adopted most advanced design and technology. The performance level is qualitatively improved in a compact box body, and the device can be suitable for more extensive touring and fixed installation application. The control of the coverage mode is realized by the symmetric design, the large-size cylinder and the bass unit with optimized interval. The three-frequency-division linear array loudspeaker box is absolutely an ideal choice for places such as tour performances, enterprise audio and video systems, stadiums, churches, art centers, hotel banquet halls, clubs and the like.

The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the present invention are within the protection scope of the present invention.

Claims (10)

1. The utility model provides a three frequency division audio amplifier of linear array, includes the box, its characterized in that: be equipped with bass unit, well sound unit and high pitch unit in the box, bass unit's quantity is two, wherein, well sound unit locates two bass unit's middle part, high pitch unit locates the middle part of well sound unit.

2. The line array divide-by-three enclosure of claim 1, wherein: the high pitch unit is located in the middle tone bugle of middle tone unit, the high pitch unit with the direction of projection of middle tone unit is unanimous, just the high pitch unit with the projection line of middle tone unit is same axis, the middle tone bugle is located two the middle part of bass unit, the axis and two of middle tone bugle the axis coincidence of bass unit.

3. The line array divide-by-three enclosure of claim 2, wherein: be equipped with cavity and baffle in the box, well sound horn and baffle are integrative to be set up, the baffle will the cavity is cut apart into 2 bass cavities and a well sound cavity.

4. The line array divide-by-three enclosure of claim 3, wherein: the well sound compression drive unit setting of well sound unit is in the well sound cavity, and with the compression mouth of well sound bugle meets, the high pitch unit include high pitch compression unit and with high pitch compression unit fixed connection's high pitch bugle.

5. The line array divide-by-three enclosure of claim 4, wherein: the front end of well sound compression drive unit the compression mouth department of well sound bugle is equipped with the phase place stopper, the quantity of high pitch compression unit is two, the high pitch bugle be respectively with two high pitch compression unit fixed connection's double-end high pitch bugle.

6. The line array divide-by-three enclosure of claim 5, wherein: still including setting up the mounting panel of a certain angle setting of well sound horn both sides, bass unit's horn mouth is installed on the mounting panel, well sound unit's vocal passageway is located the both sides of treble unit, bass unit's vocal passageway is located the both sides of well sound unit.

7. The line array divide-by-three loudspeaker of any one of claims 1-6, wherein: the terminal surface is cut apart into the triplex before the box, and wherein, well sound unit and high pitch unit set up in the middle part, and two bass unit symmetries respectively set up the both sides of well sound unit and high pitch unit.

8. The line array divide-by-three enclosure of claim 7, wherein: the front end face of the box body is provided with a mask, and the mask comprises a mesh enclosure arranged on the outer side and a dustproof sponge arranged on the inner side face of the mesh enclosure.

9. The line array divide-by-three loudspeaker of any one of claims 1-6, wherein: handles and decoration panels are further arranged on two sides of the box body, and a buckle is further arranged on the rear end face of the box body.

10. The line array divide-by-three loudspeaker of any one of claims 1-6, wherein: and a hoisting piece is arranged on the top surface of the box body.

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