KR102396684B1 - Ribbon tweeter module and array type ribbon tweeter - Google Patents

Abstract

A ribbon tweeter module and an array type ribbon tweeter are disclosed. The ribbon tweeter module according to an embodiment of the present invention comprises: a magnet part including a pair of magnets extending in the width direction of the ribbon tweeter module while being positioned with a gap therebetween in the longitudinal direction orthogonal to the width direction; a vibration member disposed at the gap to extend in the width direction and provided with a conductive material; and a circuit member electrically connected to the vibrating member and receiving a sound signal to transmit a predetermined electric signal based on the sound signal to the vibrating member, wherein the vibration member vibrates by an interaction between a current flowing through the vibration member according to the electric signal and a magnetic field applied to the vibration member by the magnet part, thereby emitting sound corresponding to the sound signal. The present invention can provide high register sound with high quality.

Description

Ribbon tweeter module and array type ribbon tweeter

The present application relates to a ribbon tweeter module and an arrayed ribbon tweeter. Further, the present application relates to an array-type sound reproducing apparatus including an array-type ribbon tweeter.

A speaker is a device that converts electrical energy into mechanical energy by means of a voice coil based on the principle that a conductor through which an electric current flows is subjected to a force in a magnetic field. That is, when a current signal containing multiple frequencies is applied to the voice coil, the voice coil generates mechanical energy according to the strength and frequency of the current, and generates vibrations on the diaphragm attached to the voice coil, ultimately recognizing the human ear. It generates a sound pressure of a predetermined size that can be achieved.

In relation to the device for generating such sound pressure, a device that is used in close contact with the listener's ear is often referred to as a receiver. referred to separately.

In a typical speaker, the magnetic field formed by the magnet and the magnetic field formed by the application of an electric signal to the voice coil interfere with each other to generate a magnetic force. is operated to generate That is, in the speaker, the direction of the magnetic field generated by the magnet (eg, the X-axis direction) and the current direction (eg, the Y-axis or -Y-axis direction) by the electric signal applied to the voice coil are perpendicular to each other. The principle is that magnetic force is generated in a direction perpendicular to both the direction of the magnetic field and the direction of the current (ie, the Z-axis or the -Z-axis direction).

Depending on their structure, these speakers output a cone-shaped cone, a flat-panel type with a voice coil attached directly to a flat diaphragm, a dome type that spreads the reproduced sound evenly, a horn type with strong directivity for megaphones, and sophisticated sound quality characteristics. There are ribbon-type and small-sized condenser types with delicate sound output, and can be further classified into Woofer, Tweeter, and Mid-Range according to the nature of the output sound. there is.

Among these, the ribbon-type speaker is not a paper or metal plate as the diaphragm itself is a conductor, but a thin aluminum film with a slight wrinkle state and long like a ribbon. By placing it in the magnetic field closest to the magnet and passing the current of the audio signal to this ribbon-shaped diaphragm through a dedicated transformer, the ribbon itself becomes a diaphragm and generates sound directly. Since the weight of the vibration system such as a diaphragm can be made light, it is generally used for high-pitched or ultra-high-pitched sounds.

On the other hand, the plane wave synthesis technique (sound field synthesis reproduction technology, WFS) synthesizes the primary wavefront generated from an arbitrary primary sound source into the sound reproduced through a plurality of speakers, and combines the primary wavefront and the primary wavefront within an arbitrary volume of the speaker array. It refers to sound field reproduction technology that generates the same wavelength. According to such a plane wave synthesis technique, there is an advantage in that an equal sound field can be provided to multiple listeners in a listening space.

The conventional sound system using the plane wave synthesis technique has achieved some success in experimental music and sound art, but the texture of the array sound, the lack of sound pressure, spatial aliasing, interference between sound sources, and flexible array control Due to the absence of an algorithm, it has been difficult to apply it to music and live sound. In particular, the conventional array-type sound system has a disadvantage in that the intelligibility of sound delivered to the listener is deteriorated as it cannot overcome the interference and extinction phenomenon in the listening space. Development of the ribbon tweeter is still insufficient.

The technology that is the background of the present application is disclosed in Korean Patent Publication No. 10-1037872.

The present application is to solve the problems of the prior art described above, and a ribbon tweeter module capable of providing high-quality sound with high-quality sound through a simple structure consisting of a vibrating member disposed between a magnet part and a magnet part and weight reduction of a driving part; An object of the present invention is to provide an array type ribbon tweeter.

The present application is intended to solve the problems of the prior art described above, and provides scalability by extending and disposing a plurality of ribbon tweeter modules, which are unit structures, according to the spatial characteristics of the acoustic space, and a sound field synthesis reproduction base customized for the acoustic spatial characteristics. An object of the present invention is to provide an array-type sound reproducing apparatus capable of constructing an array-type sound system of

However, the technical problems to be achieved by the embodiments of the present application are not limited to the technical problems described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, the ribbon tweeter module according to an embodiment of the present application extends along the width direction of the ribbon tweeter module, respectively, a predetermined gap along the longitudinal direction orthogonal to the width direction A magnet part including a pair of magnets positioned with and a circuit member for transmitting a predetermined electric signal based on the sound signal to the vibrating member.

In addition, the ribbon tweeter module is configured to vibrate the vibrating member by an interaction between a current flowing through the vibrating member according to the electrical signal and a magnetic field applied to the vibrating member by the magnet unit, thereby providing a sound corresponding to the sound signal. can be emitted.

In addition, each of the pair of magnets may be magnetized in a direction parallel to the longitudinal direction and mutually equal.

In addition, the vibrating member may radiate the sound by vibrating in the vertical direction by the interaction of the electric current flowing along the width direction and the magnetic field formed along the length direction.

In addition, the circuit member may be a printed circuit board disposed below the vibrating member.

In addition, the ribbon tweeter module according to an embodiment of the present application may include a body portion having a pair of guide grooves provided so that the pair of magnets are inserted to be seated and supported.

In addition, the vibrating member may be disposed on the upper surface of the body portion between the pair of guide grooves.

In addition, each of the pair of magnets may be provided such that a width based on the width direction is greater than a length based on the length direction.

In addition, a longitudinal interval at which the gap is formed may be provided to be smaller than a reference width in the width direction of each of the pair of magnets.

On the other hand, the array-type ribbon tweeter according to an embodiment of the present application, each extending along the width direction of the ribbon tweeter, including a plurality of magnets positioned with a predetermined gap in the longitudinal direction orthogonal to the width direction A magnet part, arranged to extend in the width direction for each of the gaps, electrically connected to a plurality of vibrating members made of a conductive material, and each of the plurality of vibrating members, receiving a sound signal to respond to the sound signal It may include a circuit member for transmitting a predetermined electric signal based on the plurality of vibrating members.

In addition, the array-type ribbon tweeter may vibrate at least a portion of the plurality of vibrating members by an interaction between a current flowing through at least a portion of the plurality of vibrating members according to the electrical signal and a magnetic field applied to the plurality of vibrating members by the magnet unit. As the member vibrates, a sound corresponding to the sound signal may be emitted.

In addition, the sound emitted by the vibration of each of the at least some vibrating members may be radiated while overlapping each other to form an acoustic radiation surface.

On the other hand, the horizontal array type sound reproducing apparatus using the plane wave synthesis technique according to an embodiment of the present application includes a body and a plurality of low-pitched speakers that are accommodated in the body to have a predetermined first interval from each other and emit low-pitched sound. Module, a plurality of mid-range speaker modules accommodated in the body to have a preset second interval smaller than the first interval, emitting mid-range sound, and the array-type ribbon accommodated to radiate high-pitched sound to the body Twitter may be included.

In addition, an interval corresponding to a predetermined gap between the plurality of magnets of the array type ribbon tweeter may be determined based on the first interval and the second interval.

The above-described problem solving means are merely exemplary, and should not be construed as limiting the present application. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description.

According to the above-described problem solving means of the present application, a ribbon tweeter module and an array-type ribbon tweeter capable of providing high-quality sound with a high-quality sound through a simple structure consisting of a vibrating member disposed between the magnet unit and the magnet unit and weight reduction of the driving part can provide

According to the above-described problem solving means of the present application, scalability is provided by extending and disposing a plurality of ribbon tweeter modules, which are unit structures, according to the spatial characteristics of the acoustic space, and an array type sound based on sound field synthesis and reproduction customized for the acoustic spatial characteristics. It is possible to provide an array type sound reproducing apparatus capable of constructing a system.

According to the above-described problem solving means of the present application, the replacement process of each of the vibrating members can be facilitated due to the structure in which the vibrating member emitting sound by vibration is disposed in the gap region between the pair of magnets.

However, the effects obtainable herein are not limited to the above-described effects, and other effects may exist.

1 is a plan view of a ribbon tweeter module according to an embodiment of the present application as viewed from above.
2 is a view of the ribbon tweeter module according to an embodiment of the present application except for the magnet part as viewed from one direction in the width direction.
3 is a schematic perspective view of an array type ribbon tweeter according to an embodiment of the present application.
4A is a plan view of an array-type ribbon tweeter according to an embodiment of the present application as viewed from above.
4B is a view of the array type ribbon tweeter according to an embodiment of the present application as viewed from one direction in the width direction.
5A is a schematic perspective view of an array-type sound reproducing apparatus according to an exemplary embodiment of the present disclosure.
5B is a schematic perspective view of an array type sound reproducing apparatus according to another exemplary embodiment of the present disclosure.
6A is a diagram illustrating an interference phenomenon occurring in a conventional sound reproducing system including two speakers.
6B is a diagram illustrating an interference phenomenon occurring when a conventional sound reproducing system including nine speakers is used.
6C is a view for explaining that interference is reduced when a sound reproducing system including an array-type sound reproducing apparatus according to an embodiment of the present application is used.
7 is a diagram illustrating a sound pressure attenuation ratio according to a distance by a sound reproducing system including an array-type sound reproducing apparatus according to an embodiment of the present application compared with that of a conventional sound reproducing system.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present application pertains can easily carry out. However, the present application may be implemented in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present application in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout this specification, when a part is "connected" with another part, it is not only "directly connected" but also "electrically connected" or "indirectly connected" with another element interposed therebetween. "Including cases where

Throughout this specification, when a member is positioned “on”, “on”, “on”, “on”, “under”, “under”, or “under” another member, this means that a member is positioned on the other member. It includes not only the case where they are in contact, but also the case where another member exists between two members.

Throughout this specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

For reference, the terms (length direction, width direction, vertical direction, upper, lower, upper, lower, etc.) related to the direction or position in the description of the embodiment of the present application are described based on the arrangement state of each component shown in the drawings. will be. For example, when viewed in FIG. 1 , the longitudinal direction may be a direction from 3 o'clock to 9 o'clock, the width direction may be a direction from 12 o'clock to 6 o'clock, and the vertical direction may be a normal direction of the drawing. In addition, as seen in FIG. 2 , the longitudinal direction may be from 3 o'clock to 9 o'clock, the width direction may be a normal direction of the drawing, and the up-down direction may be from 12 o'clock to 6 o'clock. Also, as seen in FIG. 3 , the longitudinal direction may be from 2 o'clock to 8 o'clock, the width direction may be from 4 o'clock to 10 o'clock, and the up-down direction may be from 12 o'clock to 6 o'clock.

However, this direction setting may vary depending on the arrangement state of the apparatus of the present application. For example, if necessary, the device of the present application may be disposed so that the upward direction of FIG. 3 faces a horizontal direction (left and right direction), and as another example, the device of the present application may be disposed such that the upward direction of FIG. 3 faces an oblique inclination direction. .

The present application relates to a ribbon tweeter module and an arrayed ribbon tweeter. Further, the present application relates to an array-type sound reproducing apparatus including an array-type ribbon tweeter.

1 is a plan view of the ribbon tweeter module according to an embodiment of the present application viewed from the upper side, and FIG. 2 is a view of the ribbon tweeter module according to an embodiment of the present application excluding the magnet part as viewed from one width direction.

1 and 2 , the ribbon tweeter module 100 according to an embodiment of the present application may include a magnet unit 110 , a vibrating member 120 , a circuit member 130 , and a body unit 140 . can

The magnet unit 110, each extending along the width direction of the ribbon tweeter module 100, includes a pair of magnets 111 and 112 positioned with a predetermined gap in the longitudinal direction orthogonal to the width direction. can

In addition, each of the pair of magnets 111 and 112 of the magnet unit 110 may be parallel to the longitudinal direction and may be magnetized in a mutually equal direction. Here, the meaning of the magnetization of the pair of magnets 111 and 112 in the mutually equal direction means that the N pole of each of the pair of magnets 111 and 112 is in one longitudinal direction or the other as shown in FIG. 1 . case, it may mean that the S pole of each of the pair of magnets 111 and 112 is in the other longitudinal direction or in one direction.

In addition, each of the pair of magnets 111 and 112 of the magnet unit 110 may be a permanent magnet for supplying a continuous direct current magnetic flux, but is not limited thereto, and may be an electromagnet or the like according to an embodiment of the present application.

In addition, according to an embodiment of the present application, each of the pair of magnets 111 and 112 may be provided such that a width with respect to the width direction is greater than a length with respect to the length direction. In other words, each of the pair of magnets 111 and 112 of the ribbon tweeter module 100 of the present application may be disposed such that its width is greater than its length. According to an embodiment of the present application, the length of each of the pair of magnets 111 and 112 is small compared to the width, so that a plurality of ribbon tweeter modules 100 or an array-type ribbon tweeter 10 to be described later are arranged side by side. The longitudinal arrangement spacing between the vibrating members 120, 301, 302... of As a result, it is possible to form a small shaded space in which sound is not transmitted in the acoustic space.

In addition, according to an embodiment of the present application, a gap in the longitudinal direction between the pair of magnets 111 and 112 may be provided to be smaller than the reference width in the width direction of each of the pair of magnets 111 and 112 . In addition, the longitudinal interval at which the gap is formed may be provided to be greater than the reference length in the longitudinal direction of each of the pair of magnets 111 and 112 . In other words, the magnet portion 110 of the ribbon tweeter module 100 of the present application is 'the width of each of the pair of magnets 111 and 112> the longitudinal spacing of the gap between the pair of magnets (111, 112)> one The length of each of the pair of magnets 111 and 112 may be arranged to satisfy the inequality of '.

The vibrating member 120 is disposed to extend in the width direction in the gap between the pair of magnets 111 and 112 , and may be made of a conductive material. According to an embodiment of the present application, the vibrating member 120 may be made of a conductive material such as copper or aluminum. As an example, the vibrating member 120 may be an aluminum sheet, but is not limited thereto.

The circuit member 130 may be electrically connected to the vibrating member 120 , receive an acoustic signal, and transmit a predetermined electrical signal based on the received acoustic signal to the vibrating member 120 . According to an embodiment of the present application, the circuit member 130 may be a printed circuit board (PCB) disposed below the vibrating member 120 .

In addition, the ribbon tweeter module 100 of the present application includes a current flowing through the vibrating member 120 and the magnet unit 110 according to an electrical signal transmitted from the circuit member 130 to the vibrating member 120 based on the transmitted acoustic signal. The vibrating member 120 vibrates by the interaction of the magnetic field applied to the vibrating member 120 by the pair of magnets 111 and 112 of In other words, the ribbon tweeter module 100 may radiate sound as the vibrating member 120 moves (vibrates) according to Fleming's law describing the relationship between electric current and magnetic field.

Referring to FIG. 2 , a pair of guide grooves 141 and 142 in which a pair of magnets 111 and 112 are inserted to be seated and supported may be formed in the body portion 140 . In addition, the vibrating member 120 may be disposed on the upper surface of the body portion 140 between the pair of guide grooves 141 and 142 .

In addition, according to an embodiment of the present application, the body portion 140 is formed in the guide groove 141 to prevent the longitudinal deviation of the magnet 111 inserted into the guide groove 141 is formed at a height (eg, FIG. 2 ) of the dotted line) may include a pair of support protrusions 1411 and 1412 protruding upwards. In addition, according to an embodiment of the present application, the pair of support protrusions 1411 and 1412 are provided at one end in the width direction and the other end in the width direction with respect to the width direction of the body portion 140, and include one end in the width direction and one end in the width direction. The support protrusion is designed not to protrude in the middle region between the other ends in the width direction to easily prevent separation in the longitudinal direction of the magnet 111, while the magnetic flux (in other words, the magnetic flux formed by the pair of magnets 111 and 112) , the magnetic field applied to the vibrating member 120) may be provided so as not to interfere. However, the present invention is not limited thereto, and as shown in FIG. 3 to be described later, the pair of support protrusions 1411 and 1412 may be provided to extend along the width direction in parallel with the pair of magnets 111 and 112 . there is.

In addition, according to an embodiment of the present application, the ribbon tweeter module 100 may include a connection member (not shown) for connecting the vibrating member 120 and the circuit member 130 . Illustratively, the connecting member (not shown) may be a screw for coupling both ends of the vibrating member in the width direction to one region of the circuit member 130 , but is not limited thereto.

Hereinafter, the structure and function of the array type ribbon tweeter 10 according to an embodiment of the present application will be described with reference to FIGS. 3 to 4B .

3 is a schematic perspective view of an array type ribbon tweeter according to an embodiment of the present application.

Referring to FIG. 3 , the array type ribbon tweeter 10 according to an embodiment of the present application may include a magnet part 200 , a vibrating member 300 , a circuit member 400 , and a body part 500 . . For reference, each of the magnet unit 200 , the vibrating member 300 , the circuit member 400 , and the body unit 500 of the array type ribbon tweeter 10 has the same name as the ribbon tweeter module 100 described above ( In other words, it may correspond to the magnet unit 110 , the vibrating member 120 , the circuit member 130 , and the body unit 140 . Therefore, even if omitted below, the description of each sub-component of the ribbon tweeter module 100 may be equally applied to the description of each sub-component of the array-type ribbon tweeter 10 .

The magnet unit 200 of the array type ribbon tweeter 10 extends along the width direction of the ribbon tweeter, respectively, a plurality of magnets 201, 202 . . . ) may be included.

In addition, the array-type ribbon tweeter 10 may include a plurality of vibrating members 301, 302 ... arranged to extend in the width direction for each gap between the plurality of magnets and made of a conductive material.

In addition, the circuit member 400 of the array type ribbon tweeter 10 may be electrically connected to each of the plurality of vibrating members 301 , 302 .... In addition, the circuit member 400 may receive the sound signal and transmit a predetermined electric signal based on the received sound signal to the plurality of vibrating members 301 , 302 ....

In addition, the array-type ribbon tweeter 10 is connected to the current flowing through at least a portion of the plurality of vibrating members 301, 302... At least some of the vibrating members vibrate by the interaction of the magnetic field applied to the plurality of vibrating members 301, 302 ... by the vibration, thereby operating to emit a sound corresponding to the sound signal.

Specifically, the sound emitted by the vibration of each of the vibrating members of at least a portion of the array-type ribbon tweeter 10 may be radiated while overlapping each other to form an acoustic radiation surface.

4A is a plan view of an array-type ribbon tweeter according to an embodiment of the present application as viewed from above, and FIG. 4B is a view of the array-type ribbon tweeter according to an embodiment of the present application in one width direction.

4A and 4B, in the array-type ribbon tweeter 10, a plurality of magnet parts 110 and vibrating members 120 of the above-described ribbon tweeter module 100 are arranged along the longitudinal direction, and the arranged vibration It may be understood to include an integrated circuit member 400 that transmits an electrical signal to the members 120 . However, the present invention is not limited thereto, and the array-type ribbon tweeter 10 may include a plurality of ribbon tweeter modules 100 arranged along the longitudinal direction.

Hereinafter, with reference to FIGS. 5A to 7 , a horizontal array type sound reproducing apparatus ( 1000), the effect of reducing the interference phenomenon, and the effect of reducing the sound pressure attenuation will be described in detail.

5A is a schematic perspective view of an array-type sound reproducing apparatus according to an exemplary embodiment of the present disclosure.

Referring to FIG. 5A , an array-type sound reproducing apparatus 1000 according to an embodiment of the present disclosure includes a body 40, a plurality of low-pitched speaker modules 30, a plurality of mid-range speaker modules 20, and an array-type ribbon tweeter. (10) may be included.

The plurality of bass speaker modules 30 may be accommodated in the body 40 so as to have a first predetermined distance from each other. In addition, the plurality of low-pitched speaker modules 30 may radiate low-pitched sound.

Here, the low-pitched sound according to an exemplary embodiment of the present application may mean a sound of a sound range (in other words, a frequency range) in a range of 100 Hz to 600 Hz. In other words, each of the plurality of low-pitched speaker modules 30 may radiate sound in a range of 100 Hz to 600 Hz.

The plurality of mid-range speaker modules 20 may be accommodated in the body 40 to have a second interval preset to be smaller than the first interval for the plurality of low-pitched speaker modules 30 . In addition, the plurality of mid-tone speaker modules 20 may radiate mid-range sound.

Here, the mid-range sound according to an embodiment of the present application may mean a sound in a sound range (in other words, a frequency range) in a range of 600 Hz to 3 kHz. In other words, each of the plurality of mid-tone speaker modules 20 may radiate sound in a sound range of 600 Hz to 3 kHz.

The array-type ribbon tweeter 10 may be accommodated in the body 40 to radiate a high-pitched sound. Here, the high-pitched sound according to the exemplary embodiment of the present application may mean a sound of a sound range (in other words, a frequency range) of 3 kHz to 17 kHz. In other words, the array-type ribbon tweeter 10 may radiate sound in a sound range of 3 kHz to 17 kHz.

For reference, with respect to the relative arrangement of the bass speaker module 30, the midrange speaker module 20, and the array-type ribbon tweeter 10, which can be understood through FIG. 5A, referring to FIG. 5A, the array-type ribbon tweeter ( 10) may be arranged such that a direction from 12 o'clock to 6 o'clock in FIG. 5A is the above-described width direction. Referring to this, in the horizontal array type sound reproducing apparatus 1000, the plurality of low-pitched speaker modules 30 may be disposed at one end of the body 40 in the width direction (the region biased toward the 6 o'clock direction in FIG. 5A ). . In addition, the plurality of mid-tone speaker modules 20 may be relatively disposed in the middle portion in the width direction of the body 40 . In addition, the array-type ribbon tweeter 10 may be relatively disposed at the other end of the body 40 in the width direction (the region biased toward the 12 o'clock direction in FIG. 5A ).

According to an embodiment of the present application, the plurality of low-pitched speaker modules 30 or the plurality of mid-tone speaker modules 20 form a single row in the body 40 and are arranged side by side or one row is a predetermined number of modules Forming a plurality of rows including the may be arranged side by side on the body (40).

According to an embodiment of the present application, the first interval is set to 30 cm based on the distance between the center of any one low-pitched speaker module 30 and the center of the neighboring low-pitched speaker module 30, and the second interval is The distance between the center of one mid-tone speaker module 20 and the center of the neighboring mid-tone speaker module 20 may be 5.5 cm, but is not limited thereto. As another example, the first interval and the second interval may be determined based on the diameter of the bass speaker module 30 and the diameter of the midrange speaker module 20 .

As another example, the first interval and the second interval are determined in consideration of the spatial characteristics in which the horizontal array type sound reproducing apparatus 1000 is installed, or the sound emitted by each module and overlapping each other has a predetermined shape. The branch may be determined to have a value suitable for forming an acoustic radiation surface.

In addition, according to an embodiment of the present application, a spacing corresponding to a predetermined gap between a plurality of magnets of the array type ribbon tweeter 10 may be determined based on the first spacing and the second spacing.

However, the sound range of the sound emitted by each of the bass speaker module 30 , the midrange speaker module 20 , and the array-type ribbon tweeter 10 is not limited to the numerical range described above. As another example, the low frequency boundary serving as the boundary between the low-pitched sound and the mid-range sound may be determined based on the maximum sound pressure that the horizontal array type sound reproducing apparatus 1000 can provide with respect to a predetermined frequency. In addition, the boundary of the high frequency range, which is the boundary between the sound of the middle range and the sound of the high range, is an aliasing frequency value for the installation space determined based on the spatial characteristics in which the horizontal array type sound reproducing apparatus 0010 is installed. It may be decided by considering. For example, when an aliasing frequency value for an installation space in which the horizontal array type sound reproducing apparatus 1000 is installed is calculated, a sound range greater than or equal to the calculated aliasing frequency value may be allocated to be output from the array type ribbon tweeter 10. .

In addition, according to an embodiment of the present application, the sound emitted by the horizontal array type sound reproducing apparatus 1000 includes a low-pitched sound by the low-pitched speaker module 30, a mid-range sound by the mid-range speaker module 20, and At least one of the high-pitched sounds generated by the array-type ribbon tweeter 10 may be radiated while overlapping each other to form an acoustic radiation surface. In other words, the horizontal array type sound reproducing apparatus 1000 may generate a necessary sound based on a sound field synthesis technique (WFS) for a sound signal that is divided into a plurality of sound band sections and radiated. In addition, since sounds of several sound bands are overlapped with each other, the shape of the sound radiation surface may be determined based on the mapping result of the signal processing device associated with the horizontal array type sound reproducing apparatus 1000 , and the sound radiation surface is implemented in a predetermined shape This allows the output sound to be delivered to the audience to match the desired acoustic radiation pattern.

In addition, according to an embodiment of the present application, each of the plurality of low-pitched speaker modules 30 may be implemented to radiate the sound of the low-pitched sound having different characteristics. Similarly, each of the plurality of mid-tone speaker modules 20 may be implemented to radiate mid-tone sounds having different characteristics from each other. In other words, even if the driving signal input (applied) to the bass speaker module 30 is applied to one horizontal array type sound reproducing apparatus 1000 , the bass speaker module included in the horizontal array type sound reproducing apparatus 1000 . (30) may be determined differently. Also, similarly, even if the driving signal input (applied) to the mid-tone speaker module 20 is applied to one horizontal array type sound reproducing apparatus 1000 , the mid-tone speaker module included in the horizontal array type sound reproducing apparatus 1000 . (20) may be determined differently.

Also, according to an embodiment of the present disclosure, the horizontal array type sound reproducing apparatus 1000 may have a single individual unit structure for constructing a horizontal array type sound reproducing system (not shown). In other words, the horizontal array type sound reproduction system (not shown) includes a plurality of horizontal array type sound reproduction apparatuses 1000 , and the plurality of horizontal array type sound reproduction apparatuses 1000 are arranged side by side in the longitudinal direction to reproduce sound It may be to form an array of devices. However, the arrangement structure of the horizontal array type sound reproduction apparatus 1000 may be variously determined according to the acoustic space of a building or a room in which the horizontal array type sound reproduction system is installed.

5B is a schematic perspective view of an array type sound reproducing apparatus according to another exemplary embodiment of the present disclosure.

Referring to FIG. 5B , in the case of the horizontal array type sound reproducing apparatus 1000 according to another embodiment of the present application, the plurality of bass speaker modules 30 are accommodated in the body 40 along the longitudinal direction of the body 40 . and the plurality of mid-tone speaker modules 20 are disposed along the longitudinal direction of the body 40 above the area in which the plurality of low-pitched speaker modules 30 are accommodated, and the array-type ribbon tweeter 10 includes a plurality of mid-tone speakers The speaker module 20 may be disposed parallel to the longitudinal direction of the body 40 on the upper side of the disposed region.

According to one embodiment of the present application, the horizontal array type sound reproducing apparatus 1000 according to another embodiment of the present application having the shape shown in FIG. 5B is installed in a high area (eg, adjacent to a ceiling) in an acoustic space. , in the case of being installed under a balcony, etc.) as a shape of a horizontal array type sound reproducing apparatus 1000 suitable for installation in a low-pitched sound speaker module 30 , a mid-range speaker module 20 and an array-type ribbon tweeter 10 . At least a portion may be formed in a shape inclined at a predetermined angle toward the downward direction so that the acoustic signal to be used as a whole faces downward.

6A is a diagram illustrating an interference phenomenon occurring when a conventional sound reproduction system including two speakers is used, and FIG. 6B is a diagram illustrating an interference phenomenon occurring when a conventional sound reproduction system including nine speakers is used. 6c is a view for explaining that the interference phenomenon is reduced by the sound reproducing system including the array-type sound reproducing apparatus according to an embodiment of the present application.

In particular, the area shown in blue in FIGS. 6A to 6C may represent a shaded area in which sound is not transmitted in the acoustic space.

6A to 6C, when the horizontal array type sound reproducing system of the present application prevents interference between the sound sources or output sounds emitted from the sound reproducing apparatus 1000, more uniformly than in the case of the conventional sound reproducing system. It can be seen that intelligibility can be conveyed to the audience in the acoustic space.

In addition, comparing FIGS. 6A and 6B , even if the number of sound reproducing devices (speakers) is increased, constructive interference or destructive interference occurs immediately when multiple speakers radiate the same or mutually similar signals. This means that even if the position of the speaker is adjusted or the frequency of the output sound is adjusted, the interference generating area is only slightly changed, and the occurrence of the shaded area due to the interference cannot be prevented.

On the contrary, referring to FIG. 6C , according to the horizontal array type sound reproducing system of the present application, a plurality of sound reproducing apparatuses 1000 are arranged at dense intervals, and sound emitted by each of the sound reproducing apparatuses 1000 is provided. It can be confirmed that the problem of generating a shaded area due to interference can be solved because the radiation is emitted while forming an acoustic radiation surface by overlapping each other.

7 is a diagram illustrating a sound pressure attenuation ratio according to a distance by a sound reproducing system including an array-type sound reproducing apparatus according to an embodiment of the present application compared with that of a conventional sound reproducing system.

Referring to FIG. 7 , the sound pressure attenuation ratio according to the distance by the sound reproduction system according to an embodiment of the present application can be confirmed through the graph at the upper side of FIG. 7 , and the sound pressure attenuation ratio according to the distance by the conventional sound reproduction system is It can be confirmed through the graph at the bottom of FIG. 7 .

Also, referring to FIG. 7 , in the case of the conventional sound reproducing system, when the distance from the speaker increases by two times, the sound pressure attenuation by 6 dB occurs, whereas in the case of the sound reproducing system of the present application, the sound pressure is reduced from the sound reproducing apparatus 1000. It can be seen that only 3dB of sound pressure attenuation occurs even when the distance of is increased by 2 times. Accordingly, since there is no need to increase the sound pressure excessively for the distant audience according to the sound reproducing system of the present application, the sound can be transmitted well to the distant audience in the sound reproducing apparatus 1000 even with a low sound pressure level Instead, a situation in which an audience located at a close location complains of pain due to high sound pressure for a distant audience can be avoided.

The above description of the present application is for illustration, and those of ordinary skill in the art to which the present application pertains will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may also be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present application.

10: Array type ribbon tweeter
100: ribbon tweeter module
110, 200: magnet part
120, 300: vibration member
130, 400: circuit member
140, 500: body part
1000: array type sound reproducing device
20: Mid-range speaker module
30: bass speaker module
40: body

Claims (11)

In the ribbon tweeter module,
Magnet portions each extending along the width direction of the ribbon tweeter module, the magnet portion including a pair of magnets positioned with a predetermined gap in the longitudinal direction orthogonal to the width direction;
a vibrating member disposed to extend in the width direction in the gap and made of a conductive material;
a circuit member electrically connected to the vibrating member, receiving an acoustic signal, and transmitting a predetermined electrical signal based on the acoustic signal to the vibrating member; and
A body portion having a pair of guide grooves provided so that the pair of magnets are inserted to be seated and supported;
including,
The vibrating member vibrates by the interaction of a current flowing through the vibrating member according to the electrical signal and a magnetic field applied to the vibrating member by the magnet unit, thereby emitting a sound corresponding to the sound signal,
The body part,
Provided with a pair of support protrusions protruding upward compared to the upper surface to prevent separation of the magnet inserted into the guide groove recessed downward from the upper surface of the body part,
The pair of support protrusions do not protrude in the middle region between one end of the body portion in the width direction and the other end in the width direction, the ribbon tweeter module. According to claim 1,
Each of the pair of magnets,
The ribbon tweeter module, which is parallel to the longitudinal direction and magnetized in mutually equal directions. 3. The method of claim 2,
The vibrating member is
The ribbon tweeter module that radiates the sound by vibrating in the vertical direction by the interaction of the electric current flowing along the width direction and the magnetic field formed along the length direction. 4. The method of claim 3,
The circuit member is
The printed circuit board that is disposed below the vibrating member, the ribbon tweeter module. 5. The method of claim 4,
The vibrating member is disposed on the upper surface of the body portion between the pair of guide grooves, the ribbon tweeter module. 3. The method of claim 2,
Each of the pair of magnets,
The ribbon tweeter module, which is provided so that a width based on the width direction is greater than a length based on the longitudinal direction. 7. The method of claim 6,
The lengthwise interval at which the gap is formed is provided to be smaller than the reference width in the width direction of each of the pair of magnets, the ribbon tweeter module. An array type ribbon tweeter comprising:
a magnet portion extending along the width direction of the ribbon tweeter, the magnet portion including a plurality of magnets positioned with a predetermined gap in a longitudinal direction orthogonal to the width direction;
a plurality of vibrating members arranged to extend along the width direction for each gap and made of a conductive material;
a circuit member electrically connected to each of the plurality of vibrating members, receiving an acoustic signal and transmitting a predetermined electrical signal based on the acoustic signal to the plurality of vibrating members; and
A body portion having a plurality of guide grooves provided so that the plurality of magnets are respectively inserted to be seated and supported;
including,
In response to the sound signal, the at least some of the vibrating members vibrate by the interaction of a current flowing through at least a portion of the plurality of vibrating members according to the electrical signal and a magnetic field applied to the plurality of vibrating members by the magnet unit. radiating sound,
The body part,
Provided with a pair of support protrusions protruding upward compared to the upper surface to prevent separation of the magnet inserted into the guide groove recessed downward from the upper surface of the body part,
The pair of support protrusions do not protrude in the middle region between one end of the body portion in the width direction and the other end in the width direction of the body portion, the array type ribbon tweeter. 9. The method of claim 8,
The array type ribbon tweeter, characterized in that the sound emitted by the vibration of each of the at least some vibrating members is radiated while overlapping each other to form an acoustic radiation surface. A horizontal array type sound reproducing apparatus using a plane wave synthesis technique, comprising:
body;
a plurality of low-pitched speaker modules accommodated in the body to have a predetermined first interval from each other and radiating low-pitched sound;
a plurality of mid-tone speaker modules accommodated in the body to have a second interval set in advance to be smaller than the first interval, and emitting mid-range sound; and
The array-type ribbon tweeter according to claim 8 or 9, which is accommodated in the body to radiate a high-pitched sound;
A sound reproducing device comprising a. 11. The method of claim 10,
An interval corresponding to a predetermined gap between a plurality of magnets of the array type ribbon tweeter is determined based on the first interval and the second interval.

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