KR20160045978A

KR20160045978A - Hemisphere hatch structure type Directional Speaker Apparatus

Info

Publication number: KR20160045978A
Application number: KR1020140140634A
Authority: KR
Inventors: 이찬희
Original assignee: 현대중공업 주식회사
Priority date: 2014-10-17
Filing date: 2014-10-17
Publication date: 2016-04-28

Abstract

A directional speaker device according to an embodiment of the present invention includes a plurality of speakers; A plurality of array modules fixedly installed so that the speaker has directivity; And a connection pillar inserted and coupled to a central portion of the plurality of array modules to stack the plurality of array modules.

Description

[0001] The present invention relates to a hemisphere hatch structure type directional speaker device,

The present invention relates to a directional speaker device, and more particularly, to a three-dimensional directional speaker device including a plurality of speakers.

Directional loudspeakers are for selectively transmitting sound, and ultrasonic, dome, and array methods are used for existing acoustic directivity.

The ultrasonic method has excellent directivity performance, but it is harmful to the human body, and the dome method has a lower directivity than the large size.

The array system arranges a plurality of loudspeakers and controls the magnitude and phase of different sound pressure to the frequency of each loudspeaker so that acoustic reinforcement interference occurs in a desired direction and space, and acoustic destructive interference occurs in an undesired direction and space It is the principle that sound information is transmitted strongly only in necessary direction and space.

On the other hand, in the conventional array system, acoustic directivity is obtained by arranging a plurality of loudspeakers in two dimensions. However, effective phase control is limited by disposing speakers in two dimensions.

Therefore, there is a need for research on a speaker array module capable of effectively performing phase control.

It is an object of the present invention to provide a directional speaker device capable of effectively performing phase control.

In a directional loudspeaker apparatus according to an embodiment of the present invention, the plurality of array modules may include a speaker mount formed radially from the center.

In the directional speaker device according to an embodiment of the present invention, the plurality of array modules may be provided in a hemispherical shape.

In the directional speaker device according to an embodiment of the present invention, the diameter of the plurality of array modules may decrease as they are stacked from the lower side to the upper side.

In the directional speaker device according to an embodiment of the present invention, the plurality of array modules may be stacked alternately.

In the directional speaker apparatus according to an embodiment of the present invention, the speaker mounts of the plurality of array modules may be stacked at intervals of 15 degrees.

In the directional speaker apparatus according to an embodiment of the present invention, the loudspeakers provided in the plurality of array modules may be reduced in diameter as they are stacked from the lower side to the upper side.

The directional speaker device according to an embodiment of the present invention can effectively control the phase of sound generated in the speaker by stacking the speakers in three dimensions and maximize the acoustic directivity.

1 is a schematic perspective view of a directional speaker device according to an embodiment of the present invention.
2 is a schematic side view of a directional speaker device according to an embodiment of the present invention.
3 is an exploded perspective view of a directional speaker device according to an embodiment of the present invention.
4 is a plan view of a directional speaker device according to an embodiment of the present invention.
FIG. 5 is a plan view of a loudspeaker mount provided in a directional speaker device according to an embodiment of the present invention.

Prior to the detailed description of the present invention, the terms or words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor may designate his own invention in the best way It should be construed in accordance with the technical idea of the present invention based on the principle that it can be appropriately defined as a concept of a term to describe it. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the elements in the accompanying drawings are exaggerated, omitted, or schematically shown, and the size of each element does not entirely reflect the actual size.

It is to be noted that the expressions such as the upper side, the lower side, the side face, etc. in the present specification are described based on the drawings in the drawings and can be expressed differently when the direction of the corresponding object is changed.

FIG. 1 is a schematic perspective view of a directional speaker module according to an embodiment of the present invention, FIG. 2 is a schematic side view of a directional speaker module according to an embodiment of the present invention, and FIG. Fig. 6 is an exploded perspective view of the speaker device.

1 to 3, a directional speaker device 500 according to an embodiment of the present invention may include a speaker 100, an array module 200, and a connection pillar 300.

In the directional speaker device 500 according to an exemplary embodiment of the present invention, a plurality of speakers 100 may be provided and fixed to the array module 200 to be described later.

The speaker 100 is fixedly attached to the array module 200, more specifically, the speaker mounts 211, 221, 231, and 241 provided in the array module 200, to generate sound.

At this time, the loudspeakers 100 installed on the respective speaker mounts 211, 221, 231, and 241 may be installed at regular intervals.

That is, the array module 200 includes a plurality of speaker mounts 211, 221, 231, and 241 radially extended from the central portion. The speaker 100 includes the plurality of speaker mounts 211, 221, 231, and 241, As shown in FIG.

The array module 200 has a hemispherical three-dimensional structure and is stacked via the connection pillars 300. The speaker 100 provided in the array module 200 is reduced in diameter as it is stacked from the lower side to the upper side can do.

That is, the speaker 100 of the directional speaker device 500 of the present invention may be reduced in size from the array module 200 to the inner array module 200 at the outermost side.

Here, the frequency band of the sound to be served by the speaker 100 installed in each array module 200 may be different.

That is, the first speaker 110 mounted on the lowermost side of the directional speaker device 500, that is, the first array module 210 provided on the outermost side, generates sound in the low frequency band, The frequency band of the sound that the speaker 100 plays may increase.

For example, the first speaker 110 mounted on the first array module 210 disposed at the lowermost side of the array module 200 generates sound in a frequency band of 20 to 200 Hz, and the first speaker module 110 disposed on the upper side of the first array module 210 The second speaker 120 mounted on the second array module 220 generates sound in the frequency band of 200-1 kHz and the third speaker 130 mounted on the third array module 230 generates sound in the range of 1k- And the fourth speaker 140 mounted on the fourth array module 240 generates sound in the frequency band of 10kHz to 20kHz.

Although only four array modules 200 are shown in the drawing, the number of the array modules 200 stacked is not limited. As the number of the array modules 200 stacked increases, The frequency band of the sound to which the sound is assigned can be subdivided.

In the directional speaker device 500 according to the embodiment of the present invention, since the speaker 100 is installed in each array module 200 and fixedly installed in a three-dimensional hemisphere shape, There is an advantageous effect.

The array module 200 serves as a frame in which the speaker 100 is mounted, and a plurality of the array modules 200 may be stacked.

That is, the array module 200 includes a first array module 210 disposed on the lowermost side, a second array module 220 stacked on the first array module 200, a second array module 220 disposed on the second array module 220, A third array module 230 stacked on the upper side of the third array module 230, and a fourth array module 240 stacked on the third array module 230.

It is to be noted that the number of the array modules 200 to be stacked can be variously changed.

In the center of the plurality of array modules 200, coupling holes 210a, 220a, 230a and 240a into which the coupling pillars 300 are inserted are provided, and the coupling pillars 300 are inserted into the coupling holes 200a .

At this time, the connection pillar 300 can be coupled to the coupling hole 200a by various methods such as press fitting, adhesive bonding, welding, or the like.

That is, the plurality of array modules 200 can form a laminated structure through the connection pillars 300.

In addition, the array module 200 may include a plurality of speaker mounts 211, 221, 231, and 241 extending radially from the center.

That is, the speaker mounts 211, 221, 231, and 241 may extend in the umbrella shape at the center of the array module 200, and may be formed in a hemispherical shape as a whole.

In addition, the array module 200 may be provided so that its diameter decreases from the lower side toward the upper side.

The speaker mounts 211, 221, 231, and 241 may be disposed at regular intervals as described above.

4 and 5, the array modules 200 may be stacked on each other. Specifically, the angle a1 between the first array module 210 and the second array module 220 is 15 degrees .

Similarly, the angle a2 at which the second array module 220 and the third array module 230 are shifted and the angle a3 at which the third array module 230 and the third array module 240 are displaced may be 15 degrees.

Therefore, the blocking effect on the output wavelength of each speaker 100 can be minimized.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be apparent to those of ordinary skill in the art that such changes or modifications are within the scope of the appended claims.

100: speaker 110: first speaker
120: second speaker 130: third speaker
140: fourth speaker 200: array module
210: first array module 220: second array module
230: third array module 240: fourth array module

Claims

A plurality of speakers;
A plurality of array modules fixedly installed so that the speaker has directivity; And
And a connection pillar inserted and coupled to a central portion of the plurality of array modules to stack the plurality of array modules.

The method according to claim 1,
Wherein the plurality of array modules comprises a speaker mount radially extending at a central portion thereof.

The method according to claim 1,
Wherein the plurality of array modules are provided in a hemispherical shape.

The method of claim 3,
Wherein the plurality of array modules are reduced in diameter as they are stacked from the lower side to the upper side.

3. The method of claim 2,
Wherein the plurality of array modules are stacked alternately.

6. The method of claim 5,
Wherein the speaker mounts of the plurality of array modules are stacked at intervals of 15 degrees.

The method according to claim 1,
Wherein the loudspeaker provided in the plurality of array modules decreases in diameter as the speaker is stacked from the lower side to the upper side.