Compact linear array sound box structure

Abstract

The utility model provides a compact type linear array sound box structure comprising a box body which is internally divided into a first cavity and a second cavity. The second cavity is arranged adjacent to the first cavity, a high pitch unit is arranged in the first cavity, an alto unit and a low pitch unit are arranged in the second cavity, and the alto unit is arranged on the front side of the low pitch unit and coincides with the orthographic projection of the low pitch unit. According to the utility model, the loudspeakers with various frequencies can be integrated in the small sound box body, so that the portability of the sound is improved while the sound effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound system technical field, concretely relates to a compact linear array sound structure. BACKGROUND

[0002] The existing linear array sound usually needs. INVENTION CONTENTS

[0003] In view of the deficiency of prior art, the utility model provides a compact linear array sound structure, can integrate multiple frequency loudspeakers in small sound box, guarantee the sound effect, improve the portability of sound.

[0004] The utility model discloses a technical scheme is realized as follows:

[0005] A compact linear array sound structure, including the box, the box is divided into first cavity and second cavity in, the second cavity with first cavity adjacent arrangement, be equipped with treble unit in first cavity, be equipped with medium tone unit and bass unit in second cavity, medium tone unit sets up in the front side of bass unit and with the orthographic projection of bass unit coincides.

[0006] The further technical scheme of this embodiment is that, including at least two second cavities, the second cavity is symmetrically arranged on both sides of the first cavity, and the two second cavities are communicated or not communicated, the sound outlet of the treble unit and the sound outlet of the medium tone unit are located in the same plane.

[0007] The further technical scheme of this embodiment is that, the bass unit is erected in the middle part of the second cavity, and the bass unit is inclined to the side of the treble unit.

[0008] The further technical scheme of this embodiment is that, the phase plug is further arranged in the medium tone unit.

[0009] The further technical scheme of this embodiment is that, further include compression horn, the compression horn is arranged in the sound outlet side of the treble unit.

[0010] The further technical scheme of this embodiment is that, the compression horn forms at least three compression waveguide channels inside, and the middle part of the compression waveguide channel is equipped with a flow guide.

[0011] The further technical scheme of this embodiment is that, further include medium tone baffle, the medium tone baffle is connected with the inner side wall of the second cavity, forms the third cavity containing the medium tone unit.

[0012] The further technical scheme of the embodiment is further characterized in that the diffusion plate is arranged on the front side of the midrange unit, and the diffusion plate is provided with diffusion through holes arranged in an array.

[0013] The further technical scheme of the embodiment is further characterized in that the cross-sectional shape of the box body is trapezoidal.

[0014] The further technical scheme of the embodiment is further characterized in that the bass enhancement structure is arranged on the rear side of the bass unit.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The embodiment optimizes the layout of the treble unit, the midrange unit and the bass unit in the sound box, so that the box body is more compact, and interference between the treble and the bass is avoided, thereby ensuring the user's listening experience. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor under the premise of the drawings.

[0018] Figure 1 It is a front view of the compact linear array sound structure of the utility model;

[0019] Figure 2 It is a top view of the compact linear array sound structure of the utility model;

[0020] Figure 3 It is a side view of the compact linear array sound structure of the utility model.

[0021] Drawing identification: 1-box body;11-first cavity;12-second cavity;13-midrange baffle;14-diffusion plate;2-treble unit;21-compression horn;3-midrange unit;4-bass unit;5-bass enhancement structure. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] In the description of the utility model, it is necessary to explain that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third", "fourth" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Referring to Figures 1 to 3 The utility model discloses a compact linear array sound structure, including the box 1, the first cavity 11 and the second cavity 12 are separated in the box 1, the second cavity 12 with the first cavity 11 adjacent arrangement is equipped with treble unit 2 in the first cavity 11, it is equipped with medium tone unit 3 and bass unit 4 in the second cavity 12, medium tone unit 3 is set up in the front side of bass unit 4 and coincides with the orthographic projection of bass unit 4. As shown in the figure, because the volume of bass unit 4 is larger, it will occupy larger speaker space, the embodiment is independently arranged in the first cavity 11 by treble unit 2, and medium tone unit 3 and bass unit 4 are arranged in the second cavity 12, which fully utilizes the penetration characteristics of bass to avoid the shielding of medium tone unit 3 to bass, and makes the internal structure of the speaker more compact. Figure 1 The utility model discloses a compact linear array sound structure, including the box 1, the first cavity 11 and the second cavity 12 are separated in the box 1, the second cavity 12 with the first cavity 11 adjacent arrangement is equipped with treble unit 2 in the first cavity 11, it is equipped with medium tone unit 3 and bass unit 4 in the second cavity 12, medium tone unit 3 is set up in the front side of bass unit 4 and coincides with the orthographic projection of bass unit 4. As shown in the figure, because the volume of bass unit 4 is larger, it will occupy larger speaker space, the embodiment is independently arranged in the first cavity 11 by treble unit 2, and medium tone unit 3 and bass unit 4 are arranged in the second cavity 12, which fully utilizes the penetration characteristics of bass to avoid the shielding of medium tone unit 3 to bass, and makes the internal structure of the speaker more compact.

[0026] Specifically, it comprises at least two second cavities 12, the second cavities 12 are symmetrically arranged on both sides of the first cavity 11, at least one bass unit 4 and medium tone unit 3 are arranged in the second cavity 12, and the two second cavities 12 are communicated or not communicated, the sound outlet of the treble unit 2 and the sound outlet of the medium tone unit 3 are located in the same plane. Since the frequency of bass and medium tone is lower, the directivity is stronger relative to treble, in order to make the user's hearing more balanced, the second cavity 12 is symmetrically arranged on both sides of the first cavity 11, which can ensure the balance of bass, thereby improving the user experience.

[0027] As Figure 2As shown in the drawings, in one embodiment, the bass unit 4 is arranged in the middle of the second cavity 12, and the bass unit 4 is inclined towards the side of the treble unit 2. By arranging the bass unit 4 in an inclined manner, the low-frequency sound on both sides and the high-frequency sound in the middle are superimposed on each other, so that the listening experience in front of the sound box is better. It can be understood that the bass unit 4 arranged in the middle of the second cavity 12 can further separate an independent chamber on the back side of the bass unit 4. When the diaphragm of the bass unit 4 vibrates, it will drive the surrounding air to vibrate to form sound waves. The front and back of the loudspeaker will produce sound waves with opposite phases. By arranging the bass enhancement structure 5 on the back side of the second cavity 12, the sound waves on the back are radiated to the front through the sound quality enhancement structure, superimposed with the sound waves on the front, thereby enhancing the low-frequency effect. The bass enhancement structure 5 can be a reverse phase tube or a passive radiator.

[0028] In one embodiment, the midrange unit 3 is further provided with a phase plug, which is arranged in the middle of the midrange unit 3. The main function of the phase plug is to eliminate the phase difference of the sound waves emitted by the center part and the surrounding part of the diaphragm at the throat part, thereby widening the high-frequency playback frequency band. The phase plug adjusts the phase of the sound waves, so that the sound output is smoother and more natural. Those skilled in the art can understand that the structure of the phase plug has many different structures on the market, which can be selected according to the selected midrange unit 3 and the required sound effect.

[0029] As shown in the drawings, Figure 1 and 2 In one embodiment, a compression horn 21 is further included, which is arranged on the side of the sound outlet of the treble unit 2. The compression horn 21 in this embodiment forms at least three compression waveguide channels inside, and the middle of the compression waveguide channels is provided with a flow guide. The compression horn 21 can further amplify the sound produced by the treble unit 2, so that a single treble unit 2 can meet the needs of array audio. As shown in the drawings, Figure 1 the height of the compression horn 21 is equal to the diameter of the bass horn, so that the layout of the loudspeakers inside the sound box is more compact.

[0030] As shown in the drawings, Figure 2 In one embodiment, a midrange baffle 13 is further included, which is connected with the inner side wall of the second cavity 12 to form a third cavity accommodating the midrange unit 3. The midrange baffle 13 and the side wall of the second cavity 12 enclose a semi-enclosed area to arrange the midrange unit 3.

[0031] As shown in the drawings, Figure 2As shown, in one embodiment, it further comprises a diffusion plate 14 arranged in front of the midrange unit 3, and the diffusion plate 14 is provided with diffusion holes arranged in an array. The diffusion plate 14 decomposes the incident sound wave into multiple directions of propagation through the special surface structure of the holes, ensures the uniform distribution of sound in space, reduces the reflection and diffraction of sound, and the specific shape of the diffusion holes is realized according to the required sound effect.

[0032] As Figure 3 As shown, the cross-sectional shape of the cabinet 1 in the embodiment is trapezoidal. When the sound box is placed on a plane, it forms a certain inclination with the horizontal plane, avoids the loss and unnecessary reflection caused by the sound wave being too close to the ground, and improves the experience of the listener. Secondly, when multiple linear array sound systems are combined, they can be stacked to form a sound emitting surface approximating to an arc surface, increasing the sound field range.

[0033] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compact linear array acoustic structure comprising a cabinet (1), characterized in that: The box (1) is divided into a first cavity (11) and a second cavity (12); the second cavity (12) is arranged adjacent to the first cavity (11), the first cavity (11) is provided with a treble unit (2), the second cavity (12) is provided with a medium unit (3) and a bass unit (4), the medium unit (3) is arranged on the front side of the bass unit (4) and coincides with the orthographic projection of the bass unit (4).

2. The compact linear array acoustic structure of claim 1, wherein, The box (1) is divided into a first cavity (11) and a second cavity (12); the second cavity (12) is arranged adjacent to the first cavity (11), the first cavity (11) is provided with a treble unit (2), the second cavity (12) is provided with a medium unit (3) and a bass unit (4), the medium unit (3) is arranged on the front side of the bass unit (4) and coincides with the orthographic projection of the bass unit (4).

3. The compact linear array acoustic structure of claim 2, wherein, The bass unit (4) is arranged in the middle of the second cavity (12), and the bass unit (4) is inclined towards one side of the treble unit (2).

4. The compact linear array acoustic structure of claim 1, wherein, The medium unit (3) is also provided with a phase plug, which is arranged in the middle of the medium unit (3).

5. The compact linear array acoustic structure of claim 1, wherein, It also includes a compression horn (21) arranged on one side of the sound outlet of the treble unit (2).

6. The compact linear array acoustic structure of claim 5, wherein, The compression horn (21) forms at least three compression waveguide channels inside, and the middle of the compression waveguide channels is provided with a flow guide.

7. The compact linear array acoustic structure of claim 1, wherein, It also includes a medium baffle (13) connected with the inner side wall of the second cavity (12) to form a third cavity accommodating the medium unit (3).

8. The compact linear array acoustic structure of claim 1, wherein, It also includes a diffusion plate (14) arranged on the front side of the medium unit (3), and the diffusion plate (14) is provided with an array of diffusion through holes.

9. The compact linear array acoustic structure of claim 1, wherein, The cross-sectional shape of the box (1) is trapezoidal.

10. The compact linear array acoustic structure of claim 1, wherein, It also includes a bass enhancement structure (5) arranged on the back side of the bass unit (4). The box (1) is divided into a first cavity (11) and a second cavity (12); the second cavity (12) is arranged adjacent to the first cavity (11), the first cavity (11) is provided with a treble unit (2), the second cavity (12) is provided with a medium unit (3) and a bass unit (4), the medium unit (3) is arranged on the front side of the bass unit (4) and coincides with the orthographic projection of the bass unit (4).

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