A horizontal linear array speaker

Abstract

This utility model discloses a horizontal line array speaker, relating to the field of speaker technology. It includes a cabinet, inside which a first speaker and a second speaker are installed. The first speaker propagates sound outwards along a first outlet of the cabinet, and the second speaker propagates sound outwards along a second outlet. The sound waves emitted by the first speaker can cancel out the low-frequency sound waves from the side of the second speaker facing away from the second outlet, causing the low-frequency sound waves to primarily propagate towards the second outlet. This increases the concentration of sound wave propagation, effectively reducing the impact of ambient noise and thus increasing the sound wave energy on the side closer to the audience. The cabinet is equipped with a waveguide located on the side facing away from the first outlet. The waveguide can convert spherical waves into plane waves, which helps improve the directivity of the sound waves and saves space, allowing for a smaller cabinet size. The second outlet is equipped with a phase plug, which reduces the secondary reflection path of the sound waves, reduces bass looseness and resonance problems, makes the low frequencies tighter and more powerful, and enhances the sense of rhythm.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and in particular to a horizontal line array speaker. Background Technology

[0002] Currently, most conventional subwoofer systems employ omnidirectional or unidirectional acoustic designs. In applications such as stage performances and live sound reinforcement, this can easily lead to excessive low-frequency energy leakage into the surrounding environment. For example, some low-frequency sound waves may leak from the back of the speaker, resulting in insufficient sound energy on the side facing the audience, causing muddy sound quality and a lack of rhythm in the listening area. Simultaneously, standing wave distortion is prone to occur inside the cabinet, causing an uneven frequency response curve and a loose, weak bass. Furthermore, traditional designs often require a larger cabinet size to achieve directional control, which is inconvenient for installation and transportation. Therefore, there is an urgent need for a subwoofer technology solution that can effectively suppress rear radiation, reduce cabinet size, and improve low-frequency response. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a horizontal linear array speaker that can improve the directivity of low-frequency sound waves and enhance low-frequency response.

[0004] A horizontal line array speaker according to an embodiment of the present invention includes: The enclosure contains a first speaker and a second speaker. The enclosure has a first outlet and a second outlet. The first speaker is located above the second speaker. The first speaker can propagate sound outward along the first outlet, and the second speaker can propagate sound outward along the second outlet. The sound waves emitted by the first speaker can cancel out the low-frequency sound waves of the second speaker on the side away from the second outlet. The enclosure has a waveguide located on the side of the enclosure away from the first outlet, and the second outlet has a phase plug.

[0005] A horizontal line array speaker according to an embodiment of the present utility model has at least the following beneficial effects: This embodiment features an enclosure containing a first speaker and a second speaker. The first speaker propagates sound outwards through a first outlet of the enclosure, while the second speaker propagates sound outwards through a second outlet. The sound waves emitted by the first speaker cancel out the low-frequency sound waves from the side of the second speaker facing away from the second outlet, causing the low-frequency sound waves to primarily propagate towards the second outlet. This increases the concentration of sound wave propagation, effectively reducing the impact of ambient noise and thus enhancing the sound wave energy closer to the audience. The enclosure includes a waveguide that converts spherical waves into plane waves, improving the directivity of the sound waves. The waveguide's location on the side of the enclosure facing away from the first outlet saves space and reduces the overall size of the enclosure. The second outlet is equipped with a phase plug, which reduces secondary sound wave reflections, lowers standing wave distortion, smooths the frequency response curve, reduces bass looseness and resonance issues, and makes the low frequencies tighter and more powerful, enhancing the sense of rhythm.

[0006] According to some embodiments of the present invention, the housing is provided with a third outlet, and the waveguide is disposed between the third outlet and the first horn.

[0007] According to some embodiments of the present invention, the first horn is capable of propagating sound waves in a first direction, and the second horn is capable of propagating sound waves in a second direction, wherein the first direction and the second direction are parallel to each other.

[0008] According to some embodiments of the present invention, the first direction and the second direction are parallel to each other and located in the same plane, and the plane is perpendicular to the horizontal direction.

[0009] According to some embodiments of the present invention, the waveguide includes a tweeter, a housing, and a guide. The tweeter is installed at one end of the housing, the guide is located inside the housing, and the outer peripheral wall of the guide and the housing form a channel for propagating sound waves.

[0010] According to some embodiments of the present invention, the guide member has an arc surface on the side facing the tweeter, a flat surface on the other side away from the tweeter, and the outer shell has a through hole extending along the width direction of the enclosure.

[0011] According to some embodiments of the present invention, the second outlet is provided with a second horn, the inner wall of the second horn is provided with a support plate, and the phase plug is connected to the support plate.

[0012] According to some embodiments of the present invention, the phase plug has a conical surface on the side opposite to the second horn.

[0013] According to some embodiments of this utility model, the support plate is located on the upper and lower sides of the phase plug.

[0014] According to some embodiments of the present invention, two waveguides are provided, and the two waveguides are located on both sides of the first horn along the width direction of the housing.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a first isometric view of a horizontal linear array speaker according to an embodiment of the present invention; Figure 2 This is a second isometric view of a horizontal linear array speaker according to an embodiment of the present invention; Figure 3 This is an exploded view of the waveguide in an embodiment of the present invention; Figure 4 This is a cross-sectional view of the waveguide in an embodiment of the present invention; Figure 5 This is a schematic diagram of the installation structure of the second horn and phase plug in an embodiment of this utility model.

[0017] Figure label: 100 housing; 101 first outlet; 102 second outlet; 103 third outlet; 104 first horn; 105 second horn; 106 phase plug; 107 cone surface; 108 first horn; 109 second horn; 110 support plate; Waveguide 120; tweeter 121; housing 122; guide 123; curved surface 124; channel 125; first housing 126; second housing 127; flat surface 128; through hole 129; curved surface 130; straight surface 131. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figure 1 and Figure 2 A horizontal line array speaker according to an embodiment of this utility model includes a cabinet. A first speaker and a second speaker are installed inside the cabinet. The first speaker propagates sound outwards along a first outlet of the cabinet, and the second speaker propagates sound outwards along a second outlet. The sound waves emitted by the first speaker can cancel out the low-frequency sound waves from the side of the second speaker facing away from the second outlet, causing the low-frequency sound waves to primarily propagate towards the second outlet. This increases the concentration of sound wave propagation, effectively reducing the impact of ambient noise and thus increasing the sound wave energy closer to the audience. The cabinet is equipped with a waveguide, which converts spherical waves into plane waves, improving the directivity of the sound waves. The waveguide is located on the side of the cabinet facing away from the first outlet, saving space and reducing the cabinet's size. The second outlet is equipped with a phase plug, which reduces the secondary reflection path of the sound waves, lowers standing wave distortion, smooths the frequency response curve, reduces bass looseness and resonance problems, and makes the low frequencies tighter and more powerful, enhancing the rhythm.

[0023] It is understood that the enclosure 100 is provided with a first outlet 101, a second outlet 102, and a third outlet 103. A first horn 104 is positioned directly opposite the first outlet 101, and the sound waves it emits propagate outward along a first direction 111; a second horn 105 is positioned directly opposite the second outlet 102, and its sound waves propagate outward along a second direction 112. In this embodiment, the first direction 111 and the second direction 112 are parallel to each other and both lie in the same plane perpendicular to the horizontal direction, which helps to optimize the consistency and directionality of the sound wave propagation path.

[0024] Understandably, the sound waves emitted by the first speaker 104 can effectively cancel out the low-frequency sound waves generated by the second speaker 105 on the side facing away from the second outlet 102, so that the low-frequency sound wave energy is more concentrated and radiated towards the second outlet 102, significantly reducing sound energy leakage to the surrounding environment, especially the back of the stage, reducing environmental noise interference, and improving the sound pressure level and clarity on the side facing the audience.

[0025] The housing 100 has a waveguide 120 on the side facing away from the first outlet 101, and the waveguide 120 is positioned between the third outlet 103 and the first horn 104. (Refer to...) Figure 3 and Figure 4 The waveguide 120 includes a tweeter 121, a housing 122, and a guide 123 disposed inside the housing 122. The tweeter 121 is fixed to one end of the housing 122 near the first horn 104, and a channel 125 for sound wave propagation is formed between the outer peripheral wall of the guide 123 and the inner wall of the housing 122. Further, the guide 123 is designed with an arc surface 124 on one side near the tweeter 121 and a flat surface 128 on the other side. Correspondingly, the inner peripheral wall of the housing 122 has an arc-shaped surface 130 corresponding to the arc surface 124 and a straight surface 131 parallel to the flat surface 128, which helps to gradually convert the spherical wave generated by the tweeter 121 into a plane wave, improving the directivity and propagation efficiency of the high-frequency sound wave. Simultaneously, the tweeter 121 being disposed on the back side of the first horn 104 helps to improve space utilization, reduce the overall structural size of the enclosure 100, and achieve a compact design. Furthermore, a first horn 108 is provided at the third outlet 103. The first horn 108 has an outwardly expanding inner peripheral wall so that high-frequency sound waves can propagate outward at a larger angle. In this embodiment, two waveguides 120 can be provided and symmetrically arranged on both sides of the first horn 104 along the width direction of the housing 100 to further enhance the uniformity and directivity of sound wave control.

[0026] Understandably, a second horn 109 is installed at the second outlet 102, with a support plate 110 fixed to its inner wall. A phase plug 106 is installed in the second horn 109 via the support plate 110, and the support plates 110 are distributed on the upper and lower sides of the phase plug 106, providing stable support. Further, referring to... Figure 5 The phase plug 106 has a conical surface 107 on the side opposite to the second speaker 105. This structure can effectively shorten the reflection path of sound waves in the enclosure 100, reduce secondary reflections and standing wave formation, significantly reduce low frequency distortion, smooth the frequency response curve, improve bass performance, and make the low frequency more solid and rhythmic.

[0027] In summary, the overall structure of the 100 enclosure is reasonably laid out, integrating multiple acoustic optimization units within a limited space. This effectively suppresses rear radiation and improves acoustic performance, making it particularly suitable for applications requiring high definition and strong directivity, such as stage sound reinforcement. It is also easy to transport and install.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A horizontal line array speaker, characterized in that, include: The enclosure contains a first speaker and a second speaker. The enclosure has a first outlet and a second outlet. The first speaker is located above the second speaker. The first speaker can propagate sound outward along the first outlet, and the second speaker can propagate sound outward along the second outlet. The sound waves emitted by the first speaker can cancel out the low-frequency sound waves from the side of the second speaker facing away from the second outlet. The enclosure is equipped with a waveguide located on the side of the enclosure facing away from the first outlet, and the second outlet is equipped with a phase plug.

2. A horizontal line array speaker according to claim 1, characterized in that, The enclosure is provided with a third outlet, and the waveguide is disposed between the third outlet and the first horn.

3. A horizontal line array speaker according to claim 1, characterized in that, The first speaker is capable of propagating sound waves in a first direction, and the second speaker is capable of propagating sound waves in a second direction, wherein the first direction and the second direction are parallel to each other.

4. A horizontal line array speaker according to claim 3, characterized in that, The first direction and the second direction are parallel to each other and lie in the same plane, which is perpendicular to the horizontal direction.

5. A horizontal line array speaker according to claim 1, characterized in that, The waveguide includes a tweeter, a housing, and a guide. The tweeter is installed at one end of the housing, and the guide is located inside the housing. The outer peripheral wall of the guide and the housing form a channel for propagating sound waves.

6. A horizontal line array speaker according to claim 5, characterized in that, The guide member has an arc surface on the side facing the tweeter, and a flat surface on the other side away from the tweeter. The housing has a through hole extending along the width direction of the enclosure.

7. A horizontal line array speaker according to claim 1, characterized in that, The second outlet is provided with a second horn, and the inner wall of the second horn is provided with a support plate, and the phase plug is connected to the support plate.

8. A horizontal line array speaker according to claim 1, characterized in that, The phase plug has a conical surface on the first side away from the second horn.

9. A horizontal line array speaker according to claim 7, characterized in that, The support plate is located on the upper and lower sides of the phase plug.

10. A horizontal line array speaker according to claim 1, characterized in that, Two waveguides are provided, and the two waveguides are located on both sides of the first horn along the width direction of the housing.

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