KR101282058B1 - Non-directional speaker - Google Patents

Abstract

PURPOSE: A non-directional speaker is provided to deliver the voice of a tour guide to people to be guided. CONSTITUTION: A speaker unit (110) has a hollow part inside, and is formed into a cylinder or truncated cone shape. A cover (120) is installed on the speaker unit. A coupling unit (130) is installed in the cover, and electrically connected to the speaker unit by connection wires (171). A support unit (140) is electrically connected to the coupling unit by penetrating through the speaker unit, and fixes the speaker unit. A prop (150) is installed under the support unit. A connector (170) is connected to a sound source, and transfers sound signals to the speaker unit.

Description

Omni-directional speaker {NON-DIRECTIONAL SPEAKER}

The present invention relates to an omnidirectional speaker, and more particularly, to an omnidirectional speaker that can output a leader's voice in a 360 ° direction and can easily check the position of the leader.

In general, guides, tour guides, etc., who lead a group, guide, promote, or explain to a large number of people. .

In the past, a thick paper was rolled into a cone, and the sound was concentrated using a megaphone used in the mouth. After that, an electric amplification device was added to the megaphone. It was too big to have a bad portability.

Recently, many portable loudspeakers, including amplifiers and speakers, and using external microphones have been developed, and their size has become very small.

As the size of the portable loudspeaker becomes smaller, its use is increasing not only in a very large space such as an outdoor hall or an auditorium, but also in a classroom, a lecture room, and the like. Increasingly, the use is hanging on the neck or wrist.

However, such a loudspeaker or a speaker has a directivity that the sound is output only in a specific direction, there is a problem that the person located behind the loudspeaker or speaker is difficult to hear the sound.

In addition, in a crowded area, it is difficult to identify the position of the leader who speaks through a loudspeaker or a speaker, which causes a problem that tourists or the like cannot find the leader.

In order to solve this problem, an object of the present invention is to provide a non-directional speaker that can be output in the 360 ° direction of the leader's voice and can easily check the position of the leader.

In order to achieve the above object, the present invention provides a non-directional speaker, the speaker unit which forms a hollow inside, and forms a cylindrical or truncated cone shape; A cover part installed at an upper portion of the speaker part; A fastening part installed in the cover part and electrically connected to the speaker part through a connection wire; A supporter which is electrically connected to the fastening part through the speaker part and supports the speaker part to be fixed at an arbitrary position; A pedestal installed under the support; And a connection connector connected to an external sound source to transmit a sound signal to the speaker unit.

In addition, the omnidirectional speaker according to the present invention includes an amplifier installed inside the support for amplifying and outputting an acoustic signal input through the connection connector; It further comprises a switch unit for controlling the on / off of the amplifier.

In addition, the speaker unit according to the present invention is a band-shaped film speaker formed a protective film; A coupling part formed at one side of the film speaker; A first coupling groove installed at the other side of the film speaker and fastened to the coupling portion; And a second coupling groove installed at an upper portion of the film speaker and fastened to the cover part.

In addition, the speaker unit according to the invention is characterized in that any advertising material is printed on the outer surface of the film speaker.

In addition, the support according to the present invention includes a first support for forming a connection terminal for coupling with the fastening portion; And a plurality of supports configured to be inserted into or withdrawn from the first support so that the total length of the supports is varied.

In addition, the first support according to the present invention is characterized by increasing the internal density and hardness of the first support by installing a filler therein.

In addition, the present invention provides a non-directional speaker, a speaker unit having a plurality of film speakers attached to a spherical outer frame having a hollow formed therein; A connector output unit installed below the speaker unit and electrically connected to the film speaker through a conductive wire; A support electrically connected to the connector output part and supporting the speaker part to be fixed at an arbitrary position; A pedestal installed under the support; And a connection connector connected to an external sound source to transmit a sound signal to the speaker unit.

In addition, the speaker unit according to the invention is characterized in that it further comprises a sound absorbing aid (球) to prevent the ringing in the hollow inside.

In addition, the omni-directional speaker according to the present invention is provided on the switch unit for outputting the on / off signal and is installed inside the support and the sound signal input through the connection connector according to the on / off signal of the switch unit It further comprises an amplifier for amplifying and outputting.

The present invention has the advantage that the voice of the leader through the omni-directional speaker to be output in the 360 ° direction can be sufficiently delivered to the leader to take the lead.

In addition, the present invention has the advantage that the to-be guides can easily identify the position of the leader by printing any content on the outer surface of the omni-directional speaker to be visually exposed.

1 is a perspective view showing a first embodiment of an omnidirectional speaker according to the present invention;
2 is an exploded perspective view showing the structure of the omnidirectional speaker according to FIG.
3 is a cross-sectional view showing the structure of the fastening portion of the omnidirectional speaker according to FIG.
4 is a perspective view showing a state of use of the omnidirectional speaker according to FIG.
5 is a perspective view showing a second embodiment of the omnidirectional speaker according to the present invention;
6 is an exploded perspective view showing the structure of the omnidirectional speaker according to FIG.
7 is a block diagram showing a coupling relationship of the omnidirectional speaker according to FIG.

Hereinafter, exemplary embodiments of the omnidirectional speaker according to the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)

1 is a perspective view showing a first embodiment of a non-directional speaker according to the invention, Figure 2 is an exploded perspective view showing the structure of the omnidirectional speaker according to Figure 1, Figure 3 is a fastening of the omnidirectional speaker according to Figure 1 4 is a cross-sectional view illustrating an auxiliary structure, and FIG. 4 is a perspective view illustrating a state of use of the omnidirectional speaker according to FIG. 1.

As shown in FIGS. 1 to 4, the omnidirectional speaker 100 according to the first embodiment is configured to output the output sound in a 360 ° direction, and includes a speaker unit 110, a cover unit 120, And a fastening part 130, a support stand 140, a pedestal 150, an amplifier 160, a connection connector 170, and a switch part 180.

The speaker unit 110 is a film-type speaker for outputting a sound source signal provided from the outside, and maintains a cylindrical shape so that the output sound source signal can spread in a 360 degree direction, forming a protective film 111 Film speaker 112, the coupling portion 113 and the first coupling groove 114 to fasten so as to maintain the cylindrical shape of the film speaker 112, and the second coupling groove for fixing the cover portion 120 And 115.

The film speaker 112 is a configuration that converts the sound source signal to vibration, and outputs. When the sound source signal is supplied to the piezoelectric film coated with metal or conductive material on both sides, the piezoelectric film vibrates to generate sound, and the film speaker Both surfaces of the 112 are coated with a protective film 111.

In addition, the film speaker 112 preferably maintains a cylindrical shape or a truncated truncated cone shape so that the output surface is improved.

In addition, the film speaker 112 has a band shape so that any advertisement 116 is printed on the outer surface so that visual information may be provided together with the output of sound.

The coupling portion 113 is a fastening means protruding in the longitudinal direction at one end of the film speaker 112, preferably formed of a protective film 111, it may be configured using a button or Velcro.

The first coupling groove 114 is a long hole drilled in the longitudinal direction at a position corresponding to the coupling portion 113 at the other end of the film speaker 112, the coupling portion as the punched first coupling groove 114 When the 113 is inserted, the band-shaped film speaker 112 can be maintained in a cylindrical shape by being fixed.

In addition, when the coupling unit 113 uses a button or a Velcro, it may be configured by installing a button or a Velcro in a corresponding position.

The second coupling groove 115 is a hole having a predetermined size formed along the transverse direction on the upper portion of the film speaker 112 and is fastened to the cover part 120 to support the film speaker 112 to maintain a cylindrical shape. .

The cover part 120 is installed on the upper part of the speaker part 110 to support the film speaker 112 so as to maintain a cylindrical shape and at the same time an upward direction of the sound source signal output to the inside of the cylinder of the film speaker 112. By reflecting the sound source signal output to the downward direction so that more sound source signals can be output.

In this embodiment, the shape of the cover portion 120 has been described as a disk shape, but may be changed to a circular frame.

The fastening part 130 is a cylindrical member, which is installed at the center of the cover part 120, is fastened to the supporter 140, and a sound source signal supplied through the supporter 140 is transmitted to the speaker part 110. As a configuration to be able to be, it is electrically connected through the film speaker 112 and the connecting lead 171 of the speaker unit 110, the guide groove 131, the seating groove 133, the pressing unit 134 It is configured to include).

The guide groove 131 is formed inside the fastening portion 130 of the cylindrical shape guides the path so that the support 140 can be moved to a contact position.

The mounting groove 133 allows the support 140 moved along the guide groove 131 to be seated, and the support 140 is in close contact with the electrode 172.

The pressing unit 134 prevents the support 140 located in the seating groove 133 from flowing in the seating groove 133, and at the same time, supports the supporter 140 more tightly with the electrode 172.

The support 140 is a pipe-shaped member and is coupled to the fastening part 130 by passing through the speaker part 110 so that the speaker part 110 is fixed at an arbitrary position and the fastening part 130. ) And the support 140 may include a first support 140a, a second support 140b, a third support 140c, a filler 141, and a connection terminal 142).

The support 140 supports the speaker unit 110 and provides an effect of filling the inside of the cylinder.

That is, the cylindrical speaker unit 110 outputs most of the sound signals to the outside, but some of the sound signals to the inside to cause interference with each other, so that the support 140 of the speaker output frequency due to resonance The response characteristics can be improved to prevent the generation of noise.

The first support 140a has a connection terminal 142 coupled to the fastening unit 130 at an upper end thereof, and a filler 141 is formed at an inner side thereof.

The filler 141 increases the density and hardness of the inside of the first support 140a, thereby preventing interference between the internal radiation and the external radiation generated in the interior of the speaker unit 110 and the upper and lower portions. This prevents the radiation efficiency of the speaker unit 110 from decreasing.

The second support 140b has a hollow formed therein, and the first support 140a is inserted or withdrawn so that the entire length of the support 140 can be varied while supporting the speaker unit 110. .

The third support 140b has a hollow formed therein, and the second support 140b is coupled to be inserted or withdrawn so that the entire length of the support 140 is varied while supporting the speaker unit 110. .

Meanwhile, a cable (not shown) penetrates the inside of the supporter 140, and the cable electrically connects the electrode terminal 142, the amplifier 160, and the connection connector 170.

The pedestal 150 is installed at the lower end of the support 140 to allow the speaker unit 110 to be mounted on the shoulder of the leader, and is curved inwardly.

The amplifier 160 is installed inside the support 140 and converts and amplifies an acoustic signal input through the connection connector 170 into a speaker output signal and outputs the same to the speaker unit 110.

The connection connector 170 is connected to any sound source providing means such as the microphone 300, and transmits the sound source signal output from the microphone 300 to the amplifier 160.

The switch unit 180 is installed at one side of the support 140 and outputs an operation control signal to turn on / off the amplifier 160.

On the other hand, the shape of the speaker unit 110 is not limited to the cylindrical shape, forming a developed view of the speaker unit 110 to form a truncated cone formed by cutting the vertices of the cone in a plane parallel to the base surface or a hemisphere dodecahedron The film speaker 112 may be formed to have a shape so as to be modified in various forms.

The following describes the operation of the omnidirectional speaker 100 according to the present invention.

When the instructor assembles to use the omnidirectional speaker 100 at any place, the speaker unit 110 is formed into a cylindrical shape in a band shape, and then the coupling unit 113 and the first coupling groove 114 are fastened. do.

When the cylindrical speaker part 110 is formed, the cover part 120 is covered so that the coupling part 121 and the second coupling groove 115 are fastened, and the fastening part 130 installed in the cover part 120. The support 140 is fastened to the speaker unit 110, and the switch unit 180 is turned on so that the amplifier 160 can be operated.

The speaker unit 110 has an installation position determined according to the leader, at which time the first to third supports 140a, 140b, 140c are drawn out to determine an appropriate position, and the pedestal 150 is placed on the vest 200 of the leader. The insertion of the speaker 100 is terminated by inserting and fixing it in the installed installation bag 210.

The pedestal 150 may be fixed to the shoulder of the leader using a band (not shown).

After installing the speaker unit 110 on the shoulder of the leader, connecting the microphone 300 to the connection connector 170, the voice input through the microphone 300 is converted and amplified in the amplifier 160 to the speaker unit ( Output via 110).

Therefore, the sound output through the cylindrical speaker unit 110 at a high position is spread out in all directions 360 degrees, so that the voice of the leader can be sufficiently delivered to the guides receiving the insole.

In addition, the speaker unit 110 is installed at any height above the head of the leader, and the advertisements printed on the speaker unit 110 can easily identify the position of the leader.

When the use of the speaker unit 110 is terminated, the fastening unit 130 and the supporter 140 are separated, the coupling unit 121 is separated from the second coupling groove 115, and the coupling unit is coupled to the first coupling groove 114. By separating the unit 113, disassembly of the speaker is completed and portability becomes easy.

(Second Embodiment)

5 is a perspective view showing a second embodiment of the omnidirectional speaker according to the present invention, Figure 6 is an exploded perspective view showing the structure of the omnidirectional speaker according to Figure 5, Figure 7 is a combination of the omnidirectional speaker according to FIG. A block diagram showing the relationship.

5 and 7, the omnidirectional speaker 400 according to the second embodiment includes a sphere-shaped speaker unit 410, an assisting tool 420, a connector output unit 430, and the like. And a support 440, a pedestal 450, a connection connector 460, a switch 470, and an amplifier 480.

The speaker unit 410 has a film speaker 1 (411), a film speaker 2 (412) and a film speaker n (413) having an arbitrary shape in a spherical outer frame 420 having a hollow formed therein. To output sound.

The film speakers 1 to n (411, 412, 413) are attached to the surface of the spherical outer frame 420, and each of the film speakers 1 to n (411, 412, 413) is connected to each other through a conductor (not shown). The electrical connection is made so that the sound transmitted from the amplifier 480 is output.

In addition, the film speakers 1 to n (411, 412, 413) maintains an arbitrary shape so as to be in close contact with the outer frame 420 having a curved surface, in the present embodiment is shaped as a soccer ball speaker 410 It is formed into a pentagon or hexagon so that can be expressed.

However, the soccer ball is not only limited to the embodiment, but may be variously modified, such as a basketball ball, a volleyball ball, and a baseball ball.

The outer frame 420 is a spherical plastic member having a hollow formed therein, and the inner frame 420 can prevent the sound of the sound flowing into the inside of the sound output from the film speakers 1 to n (411, 412, 413). Sound absorbing aids (球, 421) is supported and installed by the assisting tool support 422.

That is, the spherical speaker unit 410 outputs most of the sound signals to the outside, but some sound signals are introduced into the hollow inside and cause interference with each other, so that the sound absorbing aid 421 is resonated with the resonance. By improving the response characteristics of the speaker output frequency caused by the noise can be prevented.

The sound absorbing aid 421 is made of a plastic resin having a high internal density and high hardness.

The connector output unit 430 is installed below the speaker unit 410, and is electrically connected to the support 440, the film speaker 411, 412, 413 to which the acoustic signal output from the amplifier 480 is connected through a wire To be delivered).

The support 440 is a pipe-shaped member, one side of which is electrically connected to the connector output unit 430 to support the speaker unit 410 to be fixed at an arbitrary position, and the position of the speaker unit 410 is variable. The first support 440a, the second support 440b, and the connector 441 may be connected to each other so as to be inserted therein.

The connector 441 may be connected to the connector output unit 430 so that a sound signal may be transmitted to the speaker unit 410 and the speaker unit 410 may be fixed to the support 440.

The pedestal 450 is installed under the support 440 to support the speaker unit 410 to be upright on the floor or to be in close contact with the shoulder of the leader.

The connection connector 460 is installed at one side of the support 440 and connected to an external sound providing means such as a microphone 300 (see FIG. 4) so that the sound signal output from the sound providing means is transmitted to the amplifier 480. To help.

The switch unit 470 is installed on the support 440 to switch the power supplied from the power supply unit 490 to the amplifier 480 so that the amplifier 480 can be controlled on / off.

The amplifier 480 is installed inside the support 440, and when the power is supplied from the power supply unit 490 according to the on / off control of the switch unit 470, the amplifier 480 receives an acoustic signal input through the connection connector 460. Converted and amplified and output to the speaker unit 410.

Therefore, the sound signal is output in the 360-degree direction can be enough to deliver the sound to the recipients.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. It can be understood that

In the course of the description of the embodiments of the present invention, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, , Which may vary depending on the intentions or customs of the user, the operator, and the definitions of these terms should be based on the contents throughout this specification.

100: omnidirectional speaker 110: speaker unit
111: protective film 112: film speaker
113: coupling portion 114: the first coupling groove
115: second coupling groove 120: cover
121: coupling portion 130: coupling portion
131: guide groove 133: seating groove
134: pressure unit 140: support
140a: first support 140b: second support
140c: third support 141: filler
142: connection terminal 150: pedestal
160: amplifier 170: connection connector
171: connecting lead 172: electrode
180: switch 200: vest
210: installation pocket 300: microphone
400: omnidirectional speaker 410: speaker unit
411: film speaker 1 412: film speaker 2
413 film speaker 3 420 outer frame
421: auxiliary tool 422: auxiliary tool support
430: connector output portion 440: support
440a: first support 440b: second support
441 connector 450: base
460: connector 470: switch
480: amplifier 490: power supply

Claims (9)

As an omnidirectional speaker,
A speaker unit 110 forming a hollow inside and forming a cylindrical or truncated cone shape;
A cover part 120 installed above the speaker part 110;
A fastening part 130 installed at the cover part 120 and electrically connected to the speaker part 110 through a connection wire 171;
A supporter 140 electrically connected to the fastening part 130 through the speaker part 110 and supporting the speaker part 110 to be fixed at an arbitrary position;
A pedestal 150 installed below the support 140; And
The omnidirectional speaker, characterized in that it comprises a connection connector 170 is connected to an external sound source so that the sound signal is transmitted to the speaker unit (110). The method of claim 1,
An amplifier 160 installed inside the support 140 to amplify and output an acoustic signal input through the connection connector 170;
The omni-directional speaker, characterized in that it further comprises a switch unit for controlling the amplifier (160) on / off. 3. The method according to claim 1 or 2,
The speaker unit 110 may include a strip-shaped film speaker 112 forming a protective film 111;
A coupling part 113 formed at one side of the film speaker 112;
A first coupling groove 114 installed at the other side of the film speaker 112 and coupled to the coupling portion 113; And
The omnidirectional speaker, characterized in that it comprises a second coupling groove 115 is installed on the film speaker 112 and fastened to the cover portion 120. The method of claim 3, wherein
The speaker unit 110 is a non-directional speaker, characterized in that printed on the outer surface of the film speaker 112 any advertising material. 3. The method according to claim 1 or 2,
The support 140 is a first support (140a) formed with a connection terminal 142 to be coupled to the fastening portion 130; And
The omni-directional speaker, characterized in that it comprises a plurality of supports (140b, 140c) coupled to the first support (140a) is inserted or withdrawn so that the entire length of the support (140) is variable. The method of claim 4, wherein
The first support (140a) is a non-directional speaker, characterized in that the internal density and the hardness (硬度) is increased by installing a filler 141 therein. As an omnidirectional speaker,
A speaker unit 410 having a plurality of film speakers 411, 412, 413 attached to a spherical outer frame 420 having hollows therein;
A connector output unit 430 installed below the speaker unit 410 and electrically connected to the film speakers 411, 412 and 413 through a conductive wire;
A support 440 electrically connected to the connector output unit 430 and supporting the speaker unit 410 to be fixed at an arbitrary position;
A pedestal 450 installed below the support 440; And
The omni-directional speaker characterized in that it comprises a connection connector 460 is connected to an external sound source so that the sound signal is transmitted to the speaker unit (410). The method of claim 7, wherein
The speaker unit 410 is a non-directional speaker, characterized in that it further comprises a sound absorption aid (sphere) (421) for preventing the ringing in the hollow inside. 9. The method according to claim 7 or 8,
A switch unit 470 installed on the support 440 to output an on / off signal;
And an amplifier 480 installed inside the support 440 to amplify and output an acoustic signal input through the connection connector 460 according to the on / off signal of the switch unit 470. Omnidirectional speaker.

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