Column loudspeaker horn

Abstract

The embodiment of the utility model provides a sound post horn, and the sound post horn comprises a mounting plate which comprises a plurality of surface plates which are sequentially connected, the adjacent surface plates form a non-zero included angle, and each surface plate is provided with a sound inlet hole; one of the sound guide cylinders corresponds to the surface plate and is communicated with the sound inlet hole of the surface plate where the sound guide cylinder is located; one phase plug is correspondingly arranged in one sound guide cylinder and is used for forming a sound guide channel in the corresponding sound guide cylinder; wherein the plurality of surface plates are arranged to form a curved surface, and the phase plug in each sound guide cylinder is perpendicular to the corresponding surface plate, so that the sound guide channels in the sound guide cylinders point to different directions, and sound is conducted to different areas. According to the technical scheme provided by the embodiment of the invention, the phases of the sound can be consistent, the projection direction of the sound waves is controlled, and specific coverage of each sound source is realized.

Description

Technical Field

[0001] The present application relates to the technical field of audio equipment, and in particular to a column horn. Background Art

[0002] The operating mechanism of horn speakers is to generate sound waves by vibrating the diaphragm of the speaker, and then amplify the sound waves through the horn structure and transmit them to the target area. When high-frequency audio passes through the existing horn, there are problems such as sound wave phase deviation and inability to control the direction of sound wave projection.

[0003] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Utility Model Content

[0004] The embodiments of the present application provide a column horn to solve or alleviate one or more of the technical problems mentioned above.

[0005] As one aspect of an embodiment of the present application, an embodiment of the present application provides a column horn, including:

[0006] The mounting plate comprises a plurality of plane plates connected in sequence, the adjacent plane plates have a non-zero included angle, and each plane plate is provided with a sound inlet hole;

[0007] A sound guide tube, one of the sound guide tubes corresponds to one flat plate, the sound guide tube is fixed at one end of the flat plate and communicates with the sound inlet hole of the flat plate;

[0008] A phase plug, one of the phase plugs is correspondingly installed in one of the sound-conducting barrels, and is used to form a sound-conducting channel in the corresponding sound-conducting barrel;

[0009] Among them, multiple flat panels are arranged into a curved surface, and the phase plug in each sound guide tube and the corresponding flat panel are arranged vertically, so that the sound guide channels in each sound guide tube point to different directions to conduct the sound to different areas.

[0010] Optionally, on the side facing away from the sound conductor, the angle between adjacent planar panels is in the range of [150°, 180°).

[0011] Optionally, the planar plate is a circular plate, and the sound inlet hole is a circular hole.

[0012] Optionally, the sound guiding tube is provided with a sound guiding channel baffle, and the sound guiding channel baffle is arranged on the symmetry axis of the phase plug and one end of the sound guiding channel baffle is fixed on the phase plug.

[0013] Optionally, a plurality of the sound-conducting tubes are formed in a sound-conducting structure, and the sound-conducting structure is provided with a sound outlet;

[0014] The sound-conducting structure includes a first plate and a second plate opposite to each other at two ends, and a third plate and a fourth plate opposite to each other at two sides;

[0015] The first plate and the second plate are both arc-shaped plates, and the convex surface of the first plate and the convex surface of the second plate are opposite to each other;

[0016] The third plate and the fourth plate are both arc-shaped plates, and the convex surface of the third plate is opposite to the convex surface of the fourth plate;

[0017] Wherein, a plurality of partitions are provided in the sound-conducting structure, and the plurality of partitions are used to divide the sound-conducting structure into a plurality of sound-conducting tubes.

[0018] Optionally, the sound outlet is a rectangular sound outlet with a width of 129.1 mm and a length of 259.7 mm.

[0019] Optionally, the number of the flat panel and the number of the sound guide tube are both three;

[0020] The first sound guide tube corresponds to the first plane plate, and is formed based on the first plate, the third plate, the fourth plate and the first partition plate;

[0021] The second sound guide tube corresponds to the second plane plate, and is formed by the first baffle plate, the third plate, the fourth plate and the second baffle plate;

[0022] The third sound guide tube corresponds to the third plane plate, and is formed by the second partition plate, the third plate, the fourth plate and the second plate.

[0023] Optionally, on the side facing away from the sound conductor: the included angle between the first plane plate and the second plane plate is 170°, and the included angle between the second plane plate and the third plane plate is 170°.

[0024] Optionally, on the side facing the sound guide: the angle between the first plate and the first plane is 113°; the angle between the second plate and the third plane plate is 113°.

[0025] Optionally, the phase plug is made of metal material.

[0026] The above technical solution adopted in the embodiment of the present application may have the following advantages:

[0027] The phase plug in each sound guide tube divides the corresponding sound source into two plane sound waves that arrive at the exit of the sound guide channel at the same distance, time and phase. In the present application, multiple plane panels are arranged in sequence to form a curved surface, so that the sound guide channels in multiple sound guide tubes fixed on the multiple plane panels point in different directions, so that the phase of the sound can be consistent and the projection direction of the sound wave can be controlled, so that each sound source can cover different specific areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0029] Figure 1 It is a schematic diagram of the structure of the column horn provided in the embodiment of the present application.

[0030] Figure 2 It is a cross-sectional view of the sound column horn provided in an embodiment of the present application.

[0031] Figure 3 It is a top view of the column horn provided in the embodiment of the present application.

[0032] Figure 4 It is a left view of the column horn provided in the embodiment of the present application.

[0033] Figure 5 It is a bottom view of the column horn provided in the embodiment of the present application.

[0034] Description of reference numerals:

[0035] 100, mounting plate; 101, sound inlet; 102, first plane plate; 103, second plane plate; 104, third plane plate; 200, sound-conducting structure; 201, sound outlet; 202, first plate; 203, second plate; 204, third plate; 205, fourth plate; 206, first sound-conducting tube; 207, second sound-conducting tube; 208, third sound-conducting tube; 209, first partition; 210, second partition; 300, phase plug; 301, sound-conducting channel partition. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] The embodiment of the present application provides a technical solution for a column horn. In each sound guide tube, a phase plug divides the sound source into two identical parts. When these two parts of the sound waves arrive at the exit of the sound guide channel, they form plane sound waves with equal distance, time synchronization, and the same phase. And by arranging a plurality of plane plates into a curved shape, the sound guide channels in the sound guide tubes fixed on the plane plates point in different directions. In this way, the phase of the sound can be more accurately adjusted to a consistent state, and the projection direction of the sound wave can also be controlled, so that each sound source covers a specific area. See below for details.

[0039] Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be noted that these exemplary embodiments can be implemented in many different forms and should not be construed as being limited to the embodiments described herein.

[0040] like Figures 1 to 5 As shown, the column horn may include: a mounting plate 100 , a sound guide tube and a phase plug 300 .

[0041] The mounting plate 100 includes a plurality of plane plates connected in sequence, the adjacent plane plates are at a non-zero angle, and each plane plate is provided with a sound inlet hole 101. The mounting plate can be made of metal material or other materials, the number of the plane plates can be multiple, and the shape can be a ring or other shapes. The plane plate is used to install the sound guide tube, and the sound inlet hole is used to allow the sound source sound wave to enter the sound column horn.

[0042] The sound guide tube corresponds to one plane board, and the sound guide tube is fixed at one end of the plane board and communicated with the sound inlet hole 101 of the plane board. The sound guide tube can be made of metal material, and the sound guide tube is hollow, so as to facilitate the installation of the phase plug 300 and allow the sound to pass through.

[0043] Phase plug 300, one phase plug 300 is correspondingly installed in one sound guide tube, and is used to form a sound guide channel in the corresponding sound guide tube. The main body of phase plug 300 can be conical, and the shape of phase plug 300 matches the sound guide tube.

[0044] Among them, multiple flat panels are arranged into a curved surface, and the phase plug 300 in each sound guide tube is arranged vertically to the corresponding flat panel, so that the sound guide channel in each sound guide tube points to different directions to conduct the sound to different areas. The phase plug 300 forms a sound guide channel in the sound guide tube, which can adjust the phase and frequency response of the sound to improve the acoustic performance and propagation effect of the sound column horn, making the sound clearer and more balanced. Through the combination of multiple sound guide tubes and phase plugs, the sound guide channel in each sound guide tube points to different directions. In this way, directional propagation of sound can be achieved, so that the sound can be transmitted to different areas or listener positions more accurately.

[0045] In this embodiment, the phase plug in each sound guide tube divides the corresponding sound source into two plane sound waves that arrive at the exit of the sound guide channel at the same distance, time and phase, and by arranging multiple plane panels into a curved surface, the sound guide channels in multiple sound guide tubes fixed on the multiple plane panels point in different directions, so that the phase of the sound can be consistent and the projection direction of the sound wave can be controlled, thereby achieving each sound source covering a specific area.

[0046] In an optional embodiment, on the side away from the sound conductor, the angle between adjacent planar panels is in the range of [150°, 180°]. In this embodiment, the limitation of the angle range can form sufficient space on the side away from the sound conductor, which can facilitate the installation of multiple tweeter drive units and enable the sound to be effectively propagated and diffused.

[0047] In an optional embodiment, the plane plate is a circular plate, and the sound inlet hole 101 is a circular hole. The circular structure is isotropic, and the design of the circular plane plate and the circular sound inlet hole 101 can provide a relatively uniform sound propagation and diffusion effect.

[0048] In an optional embodiment, the sound guide tube is provided with a sound guide channel baffle 301, which is arranged on the symmetry axis of the phase plug 300 and one end of which is fixed on the phase plug 300. The sound guide channel baffle 301 is placed along the symmetry axis of the phase plug 300, and such a design helps to ensure the symmetry and balance of the sound guide channel, thereby improving the uniformity and consistency of the sound.

[0049] In an optional embodiment, a plurality of sound guide tubes are formed in the sound guide structure 200, and the sound guide structure 200 is provided with a sound outlet 201. The plurality of sound guide tubes are located inside the sound guide structure 200 to form an overall acoustic system to effectively control and propagate sound.

[0050] The sound-conducting structure 200 includes a first plate 202 and a second plate 203 at opposite ends, and a third plate 204 and a fourth plate 205 at opposite sides. The four plates are respectively located around the sound-conducting structure 200 to form a complete structural frame.

[0051] The first plate 202 and the second plate 203 are both arc-shaped plates, and the convex surface of the first plate 202 faces the convex surface of the second plate 203. The third plate 204 and the fourth plate 205 are both arc-shaped plates, and the convex surface of the third plate 204 faces the convex surface of the third plate 204. The convex surfaces are arranged opposite to each other, so that a larger acoustic cavity can be formed, providing sufficient space to guide and diffuse sound.

[0052] The sound guiding structure 200 is provided with a plurality of partitions, which are used to divide the sound guiding structure into a plurality of sound guiding tubes. The partitions are located inside the sound guiding structure and are used to separate the sound guiding tubes and form a plurality of independent acoustic channels. These partitions divide the sound guiding structure 200 into a plurality of sound guiding tubes, each of which can independently guide and diffuse sound, thereby achieving more accurate and effective sound projection.

[0053] In an optional embodiment, the sound outlet 201 is a rectangular sound outlet with a width of 129.1 mm and a length of 259.7 mm. Each sound inlet has the same acoustic path length to the rectangular sound outlet, that is, the phase of each corresponding frequency of the rectangular sound outlet is equal.

[0054] In an optional embodiment, the number of the flat panels and the number of the sound guide tubes are both three. The number of the sound guide tubes can be other numbers according to actual needs.

[0055] The first sound guide tube 206 corresponds to the first plane plate 102, and is formed based on the first plate 202, the third plate 204, the fourth plate 205 and the first partition plate 209. The second sound guide tube 207 corresponds to the second plane plate 103, and is formed based on the first partition plate 209, the third plate 204, the fourth plate 205 and the second partition plate 210. The third sound guide tube 208 corresponds to the third plane plate 104, and is formed based on the second partition plate 210, the third plate 204, the fourth plate 205 and the second plate 203. The combination of these plates and partitions constitutes the first sound guide tube, the second sound guide tube, the third sound guide tube and the fourth sound guide tube, which are used to guide and control the propagation direction and path of the sound.

[0056] In this embodiment, three high frequencies can be waveguided, which can be divided into far-zone coverage, middle-zone coverage and near-zone coverage. When the sound wave reaches a controllable coverage angle, the vertical coverage angle is wider, and the first sound guide 206 is used to cover the far zone, the second sound guide 207 is used to cover the middle zone, and the third sound guide is used to cover the near zone, so that each sound source covers a specific area.

[0057] In an optional embodiment, on the side away from the sound guide, the angle between the first plane plate 102 and the second plane plate 103 is 170°, and the angle between the second plane plate 103 and the third plane plate 104 is 170°. By setting the angle of 170°, the distribution and coverage of the sound can be effectively optimized, and the sound overlap and interference can be avoided, thereby improving the effect and quality of sound propagation.

[0058] In an optional embodiment, on the side facing the sound guide, the angle between the first plate 202 and the first plane is 113°, and the angle between the second plate 203 and the third plane plate 104 is 113°. Through this angle, directional propagation, control and adjustment of sound can be achieved.

[0059] In an optional embodiment, the phase plug 300 is made of metal material. Metal material has high acoustic conductivity, can effectively propagate sound waves, reduce the energy loss of sound during propagation, and thus improve the propagation efficiency and penetration of sound.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0061] For the convenience of description, the orientation or position relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" is usually based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. In the absence of any contrary explanation, these directional words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contour of each component itself. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

[0062] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0065] It should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0066] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0067] It should also be noted that the above are only preferred embodiments of the present application, and the patent protection scope of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A column horn, characterized in that: include: The mounting plate (100) comprises a plurality of plane plates connected in sequence, the adjacent plane plates have a non-zero included angle, and each plane plate is provided with a sound inlet hole (101); A sound guide tube, one of the sound guide tubes corresponds to one flat plate, the sound guide tube is fixed to one end of the flat plate and is connected to a sound inlet hole (101) of the flat plate; A phase plug (300), wherein one phase plug (300) is correspondingly installed in one of the sound-conducting barrels, and is used to form a sound-conducting channel in the corresponding sound-conducting barrel; A plurality of plane panels are arranged into a curved surface, and a phase plug (300) in each sound-conducting tube is arranged perpendicularly to the corresponding plane panel, so that the sound-conducting channels in each sound-conducting tube point in different directions, so as to conduct the sound to different areas.

2. The column horn according to claim 1, characterized in that: On the side facing away from the sound conductor, the angle between adjacent plane panels is in the range of [150°, 180°).

3. The column horn according to claim 1, characterized in that: The plane plate is a circular plate, and the sound inlet hole (101) is a circular hole.

4. The column horn according to claim 1, characterized in that: The sound guide tube is provided with a sound guide channel baffle (301), and the sound guide channel baffle (301) is arranged on the symmetry axis of the phase plug (300) and one end of the sound guide channel baffle is fixed on the phase plug (300).

5. The column horn according to claim 1, characterized in that: A plurality of the sound-conducting tubes are formed in a sound-conducting structure (200), and the sound-conducting structure (200) is provided with a sound outlet (201); The sound-conducting structure (200) comprises a first plate (202) and a second plate (203) at two opposite ends, and a third plate (204) and a fourth plate (205) at two opposite ends; The first plate (202) and the second plate (203) are both arc-shaped plates, and the convex surface of the first plate (202) and the convex surface of the second plate (203) are opposite to each other; The third plate (204) and the fourth plate (205) are both arc-shaped plates, and the convex surface of the third plate (204) is opposite to the convex surface of the fourth plate (204); Wherein, a plurality of partitions are provided in the sound-conducting structure (200), and the plurality of partitions are used to divide the sound-conducting structure into a plurality of sound-conducting tubes.

6. The column horn according to claim 5, characterized in that: The sound outlet (201) is a rectangular sound outlet with a width of 129.1 mm and a length of 259.7 mm.

7. The column horn according to claim 5, characterized in that: The number of the flat panels and the number of the sound guide tubes are both three; The first sound guide tube (206) corresponds to the first plane plate (102), and is formed based on the first plate (202), the third plate (204), the fourth plate (205) and the first partition plate (209); The second sound guide tube (207) corresponds to the second plane plate (103) and is formed based on the first partition plate (209), the third plate (204), the fourth plate (205) and the second partition plate (210); The third sound guide tube (208) corresponds to the third plane plate (104), and is formed based on the second partition plate (210), the third plate (204), the fourth plate (205) and the second plate (203).

8. The column horn according to claim 7, characterized in that: On the side facing away from the sound conductor: the angle between the first plane plate (102) and the second plane plate (103) is 170°, and the angle between the second plane plate (103) and the third plane plate (104) is 170°.

9. The column horn according to claim 7, characterized in that: On the side facing the megaphone: the angle between the first plate (202) and the first plane plate (102) is 113°; and the angle between the second plate (203) and the third plane plate (104) is 113°.

10. The column horn according to claim 1, characterized in that: The phase plug (300) is made of metal material.

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