KR200466724Y1 - Speaker Array Mounted with Ceiling - Google Patents

Abstract

A ceiling mounted speaker array is disclosed.
The speaker array according to the present invention includes a plurality of speakers disposed on a ceiling and arranged to surround a central portion and a central portion of a predetermined size.

Description

Speaker Array Mounted with Ceiling}

The present invention relates to a speaker, and more particularly to a ceiling-mounted speaker array.

Generally, speakers are installed in classrooms of elementary, middle and high schools. Classroom speakers are used for the purpose of broadcasting problems or evaluating announcements to students in the classroom, such as listening skills assessment and indoor inquiry.

However, the current classroom speaker is installed on the wall in front of the classroom, so the volume is largely transmitted to the student at a short distance from the speaker's position, but the volume is inevitably transmitted to the student far away from the speaker. In other words, the output of the speaker is not evenly distributed in the classroom, and thus the contents of the broadcast cannot be delivered to the students in the classroom with the same sound pressure, sound quality, and voice clarity.

In addition, the speaker output should be increased to provide optimal volume for students remote from the speaker. As a result, the students in the near distance may be uncomfortable by providing an excessively loud volume, and as a result, energy consumption may increase as a whole, and the output sound of the speaker may leak out of the classroom to hinder the progress of other classrooms.

In addition, when the instructor delivers the lecture content to the microphone, a howling phenomenon may occur in which the speaker output sound is introduced back into the microphone because the distance between the microphone and the classroom speaker is close. In this case, the output sound quality deteriorates, which makes it difficult to accurately deliver the lecture contents to the students.

Most of all, current wall-mounted classroom speakers have different sound quality, sound pressure, volume, and voice intelligibility depending on the student's seating position. It is a reality where complaints of parents or guardians are occurring.

The present invention has a technical problem to provide a ceiling-mounted speaker array that can provide broadcast content to all students in the classroom with the same sound quality, sound pressure, volume and speech intelligibility.

Another technical task of the present invention is to provide a speaker array that can uniformly deliver broadcast contents to all students in the classroom with little energy.

Ceiling-mounted speaker array according to an embodiment of the present invention for achieving the above technical problem is a central portion of the specified size; And a plurality of speakers disposed to surround the center portion and installed on the ceiling.

In the present invention, a speaker array is constructed by radially arranging a plurality of speakers having an acoustic radiation angle of 120 °, and the speaker array is installed at the center of the ceiling of the classroom.

Therefore, the broadcast contents can be listened to at the same sound quality, sound pressure, volume, and voice intelligibility at any location in the classroom, thereby eliminating the problem of deviation of the listening ability evaluation score according to the seating position.

Furthermore, since the output sound of the speaker is radiated from the center of the ceiling of the classroom in all directions, a large sound pressure can be reproduced to the listeners even with low energy consumption, and the output sound can be prevented from leaking out of the classroom.

In addition, the distance between the instructor's microphone and the speaker array is secured enough to prevent the howling phenomenon, thereby providing a higher quality output sound.

1 is a block diagram of a speaker array according to a first embodiment of the present invention,
2 is a configuration diagram of a speaker array according to a second embodiment of the present invention;
3 is a configuration diagram of a speaker array according to a third embodiment of the present invention;
4 is a configuration diagram of a speaker array according to a fourth embodiment of the present invention;
5 is a configuration diagram of a speaker array according to a fifth embodiment of the present invention;
6 to 8 are views for explaining an installation example of the speaker array according to the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a configuration diagram of a speaker array according to a first embodiment of the present invention.

Speaker array 10 according to the present invention is installed on the ceiling, and includes a central portion 12 and a plurality of speakers (12a, 12b, 12c, 12d) as shown in FIG.

The central portion 12 may be formed in a circular or regular polygon of a specified size, and FIG. 1 shows that the central portion 12 is in a public state.

The diameter of the central portion 12 (double length of the distance from the center to the vertex in the case of a regular polygon) may be 1 to 3 inches, preferably 2 inches, in which case the plurality of speakers 12a, 12b, 12c, 12d It is configured to surround the central portion 12 in contact with the central portion 12. Each of the plurality of speakers 12a, 12b, 12c, and 12d may have a diameter of 3 to 7 inches, preferably 4 inches, and may be configured as a full range speaker.

The acoustic emission angle of each of the plurality of speakers 12a, 12b, 12c, and 12d may be 120 °. For this purpose, the output frequency may be 150 Hz to 10 KHz, and the output may be controlled to be 5 to 30 watts.

The speaker array 10 according to the present invention is installed on the ceiling of a classroom and has an acoustic radiation angle of 120 ° so that the broadcast contents can be delivered to all listeners with the same sound quality, sound pressure, volume, and voice clarity regardless of the seating position. .

2 is a configuration diagram of a speaker array according to a second embodiment of the present invention.

The speaker array 20 according to the present embodiment includes a central portion 22 and a plurality of speakers 22a, 22b, 22c, and 22d similarly to the speaker array 10 shown in FIG. It further includes a tweeter speaker 22 to be installed.

Similar to the embodiment of Figure 1, the diameter of the tweeter speaker 22 may be configured to 1 to 3 inches, preferably 2 inches, each of the plurality of speakers (22a, 22b, 22c, 22d) has a diameter It may be 3 to 7 inches, preferably 4 inches, and is configured to surround the tweeter speaker 22 in contact with the tweeter speaker 22.

3 is a configuration diagram of a speaker array according to a third embodiment of the present invention.

The speaker array 30 shown in FIG. 3 includes a central portion 32 and a plurality of speakers 32a, 32b, 32c, and 32d.

The central portion 32 may be provided with a full range center speaker 32 having a diameter of 3 to 7 inches, preferably 4 inches, and in some cases, the central portion 32 may be in a public state. When the central portion 32 is in a public state, the central portion may be formed in a circular or regular polygon.

The diameter of each of the plurality of speakers 32a, 32b, 32c, and 32d may be 3 to 7 inches, and preferably 4 inches, and may be arranged to surround the center speaker 32 while being in contact with the center speaker 32. Can be arranged at intervals.

In the embodiment shown in FIG. 3, the speaker array 30 may be configured to include four speakers.

4 is a configuration diagram of a speaker array according to a fourth embodiment of the present invention.

The speaker array 40 according to the present exemplary embodiment includes a central speaker 42 having a diameter of 3 to 7 inches, preferably 4 inches, in the central portion 42 and is spaced apart from the central speaker 42 by a predetermined distance. A plurality of speakers 42a, 42b, 42c, 42d, 42e arranged at equal intervals to enclose 42).

Also in this embodiment, the central portion 42 may be installed in a public state, in which case the central portion 42 may be formed in a circular or regular polygon.

 In addition, each of the plurality of speakers 42a, 42b, 42c, 42d, and 42e may have a diameter of 3 to 7 inches, and preferably 4 inches.

In addition, the plurality of speakers 42a, 42b, 42c, 42d, and 42e may be configured as five.

5 is a configuration diagram of a speaker array according to a fifth embodiment of the present invention.

Referring to FIG. 5, the speaker array 50 according to the present exemplary embodiment includes a center speaker 52 having a diameter of 3 to 7 inches, preferably 4 inches, installed at the center portion 52. Of course, the central portion 52 may be designed in a public state, in which case the central portion 52 may be of a circular or regular polygon.

And a first speaker group 54a, 54b, 54c including a plurality of speakers arranged at equal intervals while being in contact with the center speaker 52, and a plurality of speakers including a plurality of speakers disposed between the first speaker group. Two speaker groups 56a, 56b, 56c.

That is, the speakers included in the first speaker group and the speakers included in the second speaker group may be alternately arranged to surround the center speaker 52.

Here, the diameter of each speaker included in the center speaker 52 and the first speaker group 54a, 54b, 54c may be configured to 3 to 7 inches, preferably 4 inches, the second speaker group 56a , 56b, 56c) each of the diameter of the speaker may be configured to 4 ~ 9 inches, preferably 6 inches.

As described above with reference to FIGS. 1 to 5, the ceiling-mounted speaker array according to the present invention includes a center portion having a predetermined size and a plurality of speakers disposed on the ceiling and arranged to surround the center portion.

In all embodiments, the plurality of loudspeakers may have an acoustic radiation angle of 120 °, for which the output frequency is 150 Hz to 10 KHz and the output may be controlled to be 5 to 30 watts.

If the speaker array according to the present invention is installed in a public space larger than a classroom, the output can be adjusted to 30 watts or more.

In addition, in the present invention, since a plurality of speakers can be used for broadcasting, it is preferable to configure a full range speaker that is advantageous for reproducing a voice band, and its diameter may be 4 inches to 6 inches. In addition, as shown in FIG. 1, when only full-range 4 inch speakers are used, the speech intelligibility may be lowered at an intermediate angle of acoustic radiation angle. Thus, the tweeter speaker 22 is illustrated as shown in FIG. It is preferable to install and use in a center part.

6 to 8 are views for explaining an installation example of the speaker array according to the present invention.

First, referring to Figure 6, the speaker array 100 according to the present invention is installed in the center of the ceiling of the classroom.

Since each speaker constituting the speaker array 100 has an acoustic emission angle of 120 °, broadcast contents can be delivered to all listeners with the same sound quality, sound pressure, volume, and voice clarity regardless of the seating position.

In addition, when the instructor proceeds to lecture through the microphone, the distance between the speaker array 100 and the instructor is sufficiently secured, thereby effectively preventing a howling phenomenon in which the output of the speaker array 100 flows into the microphone.

In addition, since it is possible to provide an even volume of broadcast contents to all listeners in the center of the ceiling, the output of the speaker array 100 can be lowered, which is effective in terms of energy saving, and the output sound of the speaker array 100 is used in the classroom. You can prevent it from spilling out.

As shown in FIG. 7 and FIG. 8, most classrooms in Korea are designed to have a height of 3m, a left and right width of 7m, and a front and rear width of less than 10m.

The speaker array 100 according to the present invention may be installed at the center of the ceiling of the classroom of such a structure, and a lecture through a microphone, evaluation of listening ability, and the like may be performed.

In particular, the Listening Ability Test is one of the tests for checking the language ability, and is proved as one of the criteria for determining the language ability of each student when entering the upper school.

Currently, listening skills are evaluated while installing speakers in front of the classroom and listening to the problems that are output through them. This resulted in a dissatisfaction from the results of listening ability evaluation because the sound quality, sound pressure, volume, and voice clarity provided from the speaker were different depending on the seating position.

However, as in the present invention, when the speaker array 100 having an acoustic radiation angle of 120 ° is installed at the center of the ceiling of the classroom, the same sound quality, sound pressure, volume, and sound intelligibility are provided regardless of the seating position. All students will be able to conduct a listening assessment under the same conditions.

Furthermore, the speaker array 100 according to the present invention has an advantage of installing a high quality speaker array at a low cost because only the existing speaker installed in a classroom is maintained while maintaining the existing broadcasting equipment.

As such, those skilled in the art to which the present invention pertains may understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. The scope of the present invention is represented by the utility model registration claims to be described later rather than the detailed description, and all changes or modifications derived from the meaning and scope of the utility model registration claims and their equivalent concepts are included in the scope of the invention. Should be interpreted as

10, 20, 30, 40, 50, 100: speaker array
12: center part
22, 32. 42, 52: center speaker
14a ~ d, 24a ~ d, 34a ~ d, 44a ~ e, 54a ~ c, 56a ~ c: Speaker

Claims (6)

A central part of a specified size; And
It includes; a plurality of speakers disposed to surround the center portion and installed on the ceiling,
The plurality of speakers include a plurality of first speakers having a first diameter and a plurality of second speakers having a second diameter, wherein the first speaker and the second speaker have equal intervals around the center portion. Ceiling-mounted speaker array configured to alternately place. delete delete The method of claim 1,
And the plurality of first speakers having the first diameter are three, and the plurality of second speakers having the second diameter are two. The method of claim 1,
And a ceiling mounted speaker array in a central state. The method of claim 1,
Ceiling mounted speaker array further comprising a center speaker installed in the center portion.

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