CN215453178U

CN215453178U - Planar waveguide horn of linear array sound box

Info

Publication number: CN215453178U
Application number: CN202121025931.9U
Authority: CN
Inventors: 朱世平
Original assignee: Guangzhou Ruifeng Intelligent Technology Co ltd
Current assignee: Guangzhou Ruifeng Intelligent Technology Co ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2022-01-07
Anticipated expiration: 2031-05-14

Abstract

The utility model particularly discloses a planar waveguide horn of a linear array sound box, which comprises a waveguide tube body; one end of the waveguide tube body is provided with a circular structure sound inlet used for being connected and fixed with a middle and high sound horn; the other end of the waveguide tube body is provided with a rectangular sound outlet; the middle part of the whole waveguide tube forms an arc-shaped curved surface structure; the arc-shaped curved surface structure enables the interior of the waveguide tube body to form an arc-shaped sound wave guide path. The sound wave guide tube can be quickly and fixedly installed with the medium-high sound driving unit and accords with the characteristics of the linear array plane waves, so that sound can reach the sound generating port at the other end at the same time, mutual interference and distortion of the sound are effectively avoided, and the medium-high sound part can obtain uniform and consistent directivity in a coverage range.

Description

Planar waveguide horn of linear array sound box

Technical Field

The utility model relates to the technical field of sound boxes, in particular to a planar waveguide horn of a linear array sound box.

Background

Horn horns, i.e. horn speakers, originally originated from gramophones. The horn speaker operates on the principle that the diaphragm pushes air at the bottom of the horn, so that the horn speaker has high efficiency and high volume because the impedance of sound is very high, but the horn speaker cannot easily reproduce low frequencies because the shape and length of the horn speaker affect the timbre and timbre of the horn speaker. The horn loudspeaker is composed of a vibration system (a high-sound head) and a horn. The vibration system is similar to the cone loudspeaker except that its diaphragm is not a cone but a dome-shaped diaphragm. The vibration of the diaphragm radiates sound waves into the air through the horn (via two reflections). Therefore, the horn of the sound box has the advantages of high frequency and large volume. The traditional bugle is troublesome to operate when being installed and connected with the high pitch driving unit, and the directivity of the high pitch part in the coverage range is not strong.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects that the traditional horn is troublesome to operate when being installed and connected with a high-pitch driving unit and the directivity of a high-pitch part in a coverage range is not strong, the utility model provides a planar waveguide horn of a linear array sound box, which is used for overcoming the defects.

A planar waveguide horn of a linear array sound box,

comprises a waveguide tube body; one end of the waveguide tube body is provided with a circular structure sound inlet used for being connected and fixed with a middle and high sound horn; the other end of the waveguide tube body is provided with a rectangular sound outlet; the middle part of the whole waveguide tube forms an arc-shaped curved surface structure; the arc-shaped curved surface structure enables the interior of the waveguide tube body to form an arc-shaped sound wave guide path.

Preferably, the waveguide body comprises a first half-wave guide and a second half-wave guide; the first half-wave guide pipe and the second half-wave guide pipe are in wedged connection.

Preferably, the middle part of the first half waveguide is in a circular arc-shaped outward convex structure along the sound wave guide path.

Preferably, the middle part of the second half-wave guide pipe is in a circular arc shape and is inwards sunken along the sound wave guide path.

Preferably, the first half-wave guide and the second half-wave guide are arranged in a manner of corresponding to each other.

Has the advantages that: the sound wave guide tube can be quickly and fixedly installed with the medium-high sound driving unit and accords with the characteristics of the linear array plane waves, so that sound can reach the sound generating port at the other end at the same time, mutual interference and distortion of the sound are effectively avoided, and the medium-high sound part can obtain uniform and consistent directivity in a coverage range.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a cross-sectional view of section a-a of fig. 3 in accordance with the present invention.

In the figure: 1-a waveguide body; 2-a sound inlet with a circular structure; 3-a sound outlet with a rectangular structure; 4-a sonic guide path; 11-a first half-waveguide; 12-second half-wave duct.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the present invention, it should be noted that the terms "inside", "outside", "between", and the like indicate orientations or positional relationships based on those shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the present invention provides a planar waveguide horn of a linear array speaker, which comprises a waveguide tube body 1; one end of the waveguide tube body 1 is provided with a circular structure sound inlet 2 which is used for being connected and fixed with a middle and high sound horn; the other end of the waveguide tube body 1 is provided with a rectangular sound outlet 3; the middle part of the whole waveguide tube forms an arc-shaped curved surface structure; the arc-shaped curved surface structure enables the interior of the waveguide tube body 1 to form an arc-shaped sound wave guide path 4, the sound wave guide tube can be quickly and fixedly installed with the medium-high sound driving unit and accords with the characteristics of linear array plane waves, sound can reach the sound generating port at the other end at the same time, mutual interference and distortion of the sound are effectively avoided, and the medium-high sound part can obtain uniform directivity in a coverage range.

In some examples of the utility model, the waveguide body 1 comprises a first half-wave guide 11 and a second half-wave guide 12; the first half-wave guide tube 11 and the second half-wave guide tube 12 are in wedge connection; the middle part of the first half waveguide tube 11 is of an arc-shaped outward convex structure along the acoustic wave guide path; the middle part of the second half-wave guide pipe 12 is in an arc-shaped inwards concave structure along the sound wave guide path; the arc-shaped parts of the first half-wave guide tube 11 and the second half-wave guide tube 12 are correspondingly arranged, and by adopting the structure, the characteristics of linear array plane waves can be met, sound can reach the sound-emitting port at the other end at the same time, and mutual interference and distortion of the sound are effectively avoided.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a linear array audio amplifier plane waveguide bugle which characterized in that:

2. The linear array loudspeaker panel waveguide horn of claim 1 wherein the waveguide body comprises a first half-wave guide and a second half-wave guide; the first half-wave guide pipe and the second half-wave guide pipe are in wedged connection.

3. The horn of claim 2, wherein the first half of the waveguide is convex along the sound guiding path.

4. The linear array loudspeaker panel waveguide horn of claim 3 wherein the second half-wave duct has a concave configuration along the sound guiding path.

5. The planar waveguide horn of claim 4, wherein the first half-wave guide tube and the second half-wave guide tube are arranged corresponding to each other.