KR20200049410A - Compressed Surface Sound Source Solid Guide and Speaker with it - Google Patents

Abstract

The present invention relates to a compressed surface sound source stereoscopic guide and speaker with the same, in which a cover member having a through hole is coupled to the front of a cone-shaped diaphragm, and a conical body, a first conical ring to an n-conical ring body are coupled to each other between the cover member and the cone-shaped diaphragm, wherein an acoustic guide passage is formed between each of the conical body, the first conical ring to the n-conical ring body, and the cover member, so when the sound generated from the cone-shaped diaphragm is guided by the acoustic guide passage and is emitted to the outside through the through hole of the cover member, the compressed surface sound source is emitted. Therefore, the transmission distance and range of sound can be increased, and when an acoustic guide is configured by a plurality of speakers provided inside in front of the cone-shaped diaphragm it is possible to prevent the interference of sounds generated from each speaker even in overlapping portions.

Description

Compressed Surface Sound Source Solid Guide and Speaker with it}

The present invention relates to a stereoscopic guide of a compressed surface sound source and a speaker having the same.

Specifically, cone-shaped, dome-shaped, and flat-type speakers generally have a square wave characteristic and are uncompressed, and acoustic guides for generating a square-wave shaped speaker in a compressed flat-wave-shaped sound are cone-shaped, domed, and flat-shaped diaphragms It relates to a stereoscopic guide of a compressed surface sound source that can be configured in front or rear and a speaker having the same.

In general, a speaker converts electrical energy into physical energy to reproduce sound. Electrical energy is generated by a voice coil existing between air gaps by Fleming's left-hand rule that a current-carrying conductor receives power when it is in a magnetic field. Is a device that converts energy into mechanical energy.

That is, when a current signal having a wide range of frequencies is applied to the voice coil, the speaker generates mechanical energy according to the current intensity and frequency magnitude, thereby vibrating the diaphragm coupled to the voice coil to generate sound.

Among these speakers, a speaker using a cone-type (congee-type) diaphragm is widely known, and its structure is as follows.

The conventional cone-shaped speaker has a frame for installing a lower plate 1 having a pole 1a, a magnet 2, an upper plate 3, a voice coil 4 and bobbin 5, and a damper 6 (7) and a cone-shaped diaphragm (8).

The lower plate 1 forms the base of the speaker, and may be formed of a steel material having rigidity. The center of the upper surface of the lower plate 1 is provided with a cylindrical pole piece 1a.

A disk-shaped magnet 2 having a hole in the center is seated on the upper surface of the lower plate 1. That is, the magnet 2 is seated on the upper surface of the lower plate 1 with the pole piece 1a fitted in the center hole.

An upper plate 3 made of a rigid steel material may be coupled to the upper side of the magnet 2. The upper plate 3 may be coupled to the lower end of the frame 7 surrounding and protecting the outer side of the cone-shaped diaphragm 8. The upper plate 3 is formed in the shape of a disk having a hole in the center as the magnet 2, and when seated and coupled to the upper side of the magnet 2, the pole plate 1a of the lower plate 1 in the center hole Some can be fitted.

The frame 7 is formed in a cone shape, such as the shape of the cone-shaped diaphragm 8, the lower end is coupled to the top of the upper plate (3). The frame 7 may be formed of a material such as steel or aluminum.

The voice coil 4 is wound on the outside of the cylindrical bobbin 5 and connected to the electric wire supplied from the outside. The bobbin 5 is movably fitted and coupled to the outside of the pole piece 1a, but is movably coupled in a gap between the hole of the pole piece 1a and the upper plate 3. The upper end of the bobbin 5 is fixed to the lower end of the cone-shaped diaphragm 8, and may be provided vertically between the holes of the pole piece 1a and the upper plate 3.

The damper 6 connects between the upper outer periphery of the bobbin 5 and the lower end of the frame 7 so that the bobbin 5 moves stably when it moves up and down.

The cone-shaped diaphragm 8 has a cone shape, the lower end of which is coupled to the upper end of the bobbin 5, and reproduces sound while vibrating by the vertical movement of the bobbin 5. The cone-shaped diaphragm 8 has a cone shape and an upper edge is coupled to the upper edge of the frame 7, so that it is fluidly coupled.

The conventional cone-shaped speaker has a problem in that it is difficult to transmit a desired sound to a listener at a specific location as the sound generated in each part of the front inner side of the cone-shaped diaphragm 8 interferes with each other, and some are extinguished or partially amplified.

In addition, the conventional dome-type speaker uses a dome-shaped diaphragm having a cone-shaped upside-down shape, and generates an uncompressed spherical wave sound like a cone-shaped speaker, whereby the sound generated by the dome-shaped diaphragm interferes with each other. As it disappears or some are amplified, there is a problem in that it is difficult to deliver a desired sound to a listener at a specific location.

Korean Patent Publication No. 10-2015-0043046 (2015.04.22.)

The present invention has been devised to solve the above problems, and is provided with a surface sound source stereoscopic guide that compresses sound generated from the front or rear of a cone-shaped, dome-shaped, or flat-shaped diaphragm that generates sound and implements a flat wave. An object of the present invention is to provide a compressed surface sound source stereoscopic guide and a speaker equipped with the compressed surface sound source to generate sound in the form of a flat wave on the front or rear surface of a cone-shaped, dome-shaped, flat plate.

In addition, the present invention, the cone-type, dome-shaped, the front surface of the cone-shaped dome-shaped flat diaphragm to compress or compress the sound to facilitate directivity control while reducing or eliminating the phenomenon of sound interference generally occurring within a very close distance from the plate diaphragm or The purpose of the present invention is to provide a three-dimensional guide of a surface sound source and a speaker equipped with the three-dimensional guide of a surface sound source.

The present invention for achieving the above object is provided on the inside of the front of the cone-shaped diaphragm, the cone-shaped diaphragm is spaced a predetermined distance from the front surface, and the center is provided with a first fitting hole to which the cone is fitted and coupled , Conical shape provided with a first conical ring body provided inside the cone-shaped diaphragm inside, and a second through n th hole through which the first conical ring body and the n-1 conical ring body can be fitted. , Conical to cover the second conical ring body to the n-th conical ring body provided inside the cone-shaped diaphragm, and the rest of the cone-shaped diaphragm except for the front central portion, generated in the cone-shaped diaphragm, the conical body, the first to the first A cover member for providing a through hole capable of generating a sound guided by a conical ring body from a central portion of the cone-shaped diaphragm to a plane sound source, and the conical body, the top The first to n-1 conical ring bodies are respectively coupled to the inner surfaces of the first to n-th fitting holes of the first to n-conical ring bodies, and the n-conical ring bodies are coupled to the inside of the through-holes of the cover member, It can be configured to include fastening means for spaced apart and coupled to the inner surface of each fitting hole and the through hole.

In addition, the fastening means, the conical body, a plurality of fastening projections respectively protruding outwardly from the outer circumferential surface of the lower end of the first to n-1 conical ring bodies, and the lower end of each fitting hole in the first to nth conical ring bodies It may be configured to include a plurality of fastening grooves respectively formed on the inner peripheral surface and the lower inner peripheral surface of the through hole of the cover member.

In addition, the conical body, the first to n-th conical ring body, is provided between each of the cover member, and further comprises a sound guide passage to generate the sound generated from the cone-shaped vibration plate through the through hole of the cover member Can be configured.

Further, the sound guide passage includes a first guide passage formed between the conical body and the first conical ring body, a second guide passage formed between the first conical ring body and the second conical ring body, and the first It can be configured to include an n-1 guide passage formed between the n-1 conical ring body and the nth conical ring body, and an n + 1 guide passage formed between the nth conical ring body and the cover member.

In addition, in the speaker, a cone-shaped diaphragm having a space on one side, a driver coupled to a lower portion of the cone-shaped diaphragm to generate a sound by vibrating the cone-shaped diaphragm, and a sound provided inside the cone-shaped diaphragm and generated from the cone-shaped diaphragm And a surface sound source three-dimensional guide for compressing and guiding to the front center of the cone-shaped diaphragm, wherein the surface sound source three-dimensional guide is provided inside the cone-shaped diaphragm, and a cone spaced apart at a predetermined distance from the front surface of the cone-shaped diaphragm, It has a first fitting hole to which the conical body is fitted and coupled to the center, and a first conical ring body provided in the front inside of the cone-shaped diaphragm in a conical shape, and the first conical ring body and an n-1 conical ring body fitted in the center A second cone provided with a second to nth hole that can be beaten, and provided in the front inside of the cone-shaped diaphragm in a cone shape The sieve to the n-th conical ring body and the rest except the front center portion of the cone-shaped diaphragm cover the sound generated by the cone-shaped diaphragm and guided by the cone, the first to n-th cone ring bodies from the center of the cone-shaped diaphragm The inner surface of the first to nth fitting holes of the first to nth conical ring bodies, and the cover member to provide a through hole that can be generated as a sound source in the center, and the conical body and the first to n-1 conical ring bodies, respectively. It is coupled to, and the n-th conical ring body coupled to the inside of the through-hole of the cover member, it may be configured to include fastening means for coupling to spaced apart from the inner surface of each fitting hole and the through-hole.

In addition, it is provided between each of the conical body, the first to nth conical ring body, the cover member, and includes a sound guide passage to generate the sound generated from the cone-shaped vibration plate through the through hole of the cover member, In the sound guide passage, when using the three-dimensional guide of the surface sound source for a woofer, each width may be uniformly formed, and when using the three-dimensional guide of the surface sound source for a high-pitched speaker, each width may be irregularly formed.

In addition, the present invention, in the speaker, a cone-shaped diaphragm having a space on one side, a driver coupled to the lower portion of the cone-shaped diaphragm to generate a sound by vibrating the cone-shaped diaphragm, and the cone-shaped diaphragm provided inside the cone-shaped diaphragm An external guide that is compressed in front of the cone-shaped diaphragm and guides it to the front center portion of the cone-shaped diaphragm, coupled to the front of the plane sound source stereoscopic guide, formed in an elliptical or circular funnel shape and having a space in the front. And, provided in the space of the external guide, it can be configured to include a surface sound source direction guide for guiding the surface sound source coming out through the surface sound source three-dimensional guide to a specific area within a certain angle in a specific direction.

In addition, the three-dimensional guide of the surface sound source is provided on the front inner side of the cone-shaped diaphragm, the cone-shaped diaphragm is provided with a conical body spaced a predetermined distance apart, and a first fitting hole to which the cone is fitted and coupled in the center, conical shape A first conical ring body provided on the front inner side of the cone-shaped diaphragm, and a second fitting hole to an n-th fitting hole into which the first conical ring body and the n-1 conical ring body can be fitted in the center, have a conical shape The second conical ring body to the n-th conical ring body provided inside the cone-shaped diaphragm and the rest except the front center portion of the cone-shaped diaphragm are generated in the cone-shaped diaphragm and the conical body, the first to n-th conical ring bodies A cover member providing a through-hole through which a sound guided by the center portion of the cone-shaped diaphragm can be generated as a surface sound source, and the conical body, the first to The n-1 conical ring bodies are respectively coupled to the inner surfaces of the first to nth fitting holes of the first to nth conical ring bodies, and the nth conical ring bodies are coupled to the inside of the through-holes of the cover member. It may be configured to include a fastening means to be spaced apart from the inner surface of the through hole.

In addition, the surface sound source direction guide, provided inside the circular or elliptical outer guide, the lower portion of the circular or elliptical outer guide to provide a guide groove that is a passage through which the sound is transmitted with the inner surface of the circular or elliptical horn On a first inclined cone having a lower inclined surface corresponding to a side surface and having an upper inclined surface of the same size as the lower inclined surface, and on the inner inclined surface of the circular or elliptical outer guide and the upper inclined surface of the first up and down cone Ring-shaped second to nth up and down cones each having a lower inclined surface provided spaced apart from the upper inclined surface in a vertical direction and having an upper inclined surface of the same size as the cross section formed in a rhombus shape, and the circular or The lower diameter of the first to nth upper and lower cones on the inner surface of the oval outer guide. Fastening means for coupling the lower inclined surfaces of the second to n-n up and down cones, respectively, to the upper inclined surfaces of the first to n-1 up and down cones, while engaging the surfaces, and the apex of the first to n-th up and down cones It is coupled to, and configured in a direction (horizontal direction) orthogonal to the traveling direction of the sound, the horizontal member having a plurality of voids without absorbing sound; including, but, the inner surface of the circular or elliptical outer guide and the Provides a passage through which the sound can be transmitted to the space between the lower inclined surfaces of the first to nth up and down cones and the space between the upper inclined surfaces of the first to n-1 up and down cones and the lower inclined surfaces of the second to nth up and down cones can do.

In addition, the present invention has a lower inclined surface, a first upper member having a cross section formed in an inverted triangular shape, and a groove portion accommodating the first upper member on an upper side, corresponding to the lower inclined surface of the first upper member A cross section is formed in a triangular shape to have an upper outer inclined surface while having an upper inner inclined surface, a first lower member having a through hole in the center, and an upper end of the first upper member and a n-1 upper member in the center It has a first through-hole to the n-1 through-hole through which the upper end of the fitting, and has a lower outer inclined surface while having a lower inner inclined surface corresponding to the upper outer inclined surface of the first to n-1 lower member below. The ring-shaped second upper member to the n-th upper member and a first through hole to an n-1 through hole through which a lower end of the first lower member and a lower end of the n-1 lower member are fitted in a central portion. And the second inside Ring-shaped second lower member to n-th lower member having an upper outer inclined surface while having an upper inner inclined surface corresponding to a lower outer inclined surface of the n-th upper member, and the first to n-th upper members and the first to It is provided between the coupling member for coupling the n-th lower member, and the lower inclined surface of the first to n-th upper members and the upper inclined surface of the first to n-th lower members. It may be configured to include a sound guide passage for guiding to be generated as a surface sound source from the outside of the n-th upper member.

In addition, the present invention, in a speaker, a flat plate having a flat upper and lower surfaces, a diaphragm, a driver for a speaker coupled to the lower surface of the diaphragm to vibrate the flat plate, and an upper portion of the diaphragm It is provided, at least one surface sound source three-dimensional guide for compressing the sound generated from the diaphragm and guiding a surface sound source in front of the diaphragm, a cylindrical case accommodating the driver for the speaker and the diaphragm, and the flat plate shape While connecting the edge of the vibration plate and the edge of the three-dimensional guide sound source can be configured to include an edge connecting the vibration plate so as to flow relative to the case.

In addition, the three-dimensional guide of the surface sound source may be configured to form a plurality of layers overlapping each other when configured in a plurality, but may be configured to turn the three-dimensional guide of the surface sound source forming an odd layer to form an even layer.

In addition, the three-dimensional guide of the surface sound source has a lower inclined surface, a first upper member having an inverted triangular cross section, and a groove portion receiving the first upper member in the center, and a lower inclined surface of the first upper member A cross section is formed in a triangular shape so as to have an upper inner inclined surface corresponding to the upper outer inclined surface, a first lower member having a through hole in the center, and an upper end of the first upper member in the center and the n-1 It has a first through hole to an n-1 through hole through which an upper end of the upper member is fitted, and a lower outer inclined surface while having a lower inner inclined surface corresponding to an upper outer inclined surface of the first to n-1 lower members in a lower portion. A first through-hole through an n-th through-hole in which a ring-shaped second upper member to an n upper member having a ring shape, and a lower end of the first lower member and a lower end of the n-1 lower member are fitted in a central portion. Equipped with, at the top The second lower member to the n-th lower member having an upper outer inclined surface while having an upper inner inclined surface corresponding to the lower outer inclined surface of the second to n-th upper members, and the first to n-th upper members It is provided between a coupling member for coupling the first to nth lower members, and a lower inclined surface of the first to nth upper members and an upper inclined surface of the first to nth lower members, which are generated in the flat plate diaphragm. It may be configured to include a sound guide passage for guiding the sound to be generated as a surface sound source from the outside of the first to n-th upper members.

In addition, the present invention is disposed in front of the plate-shaped diaphragm, the cross section is formed of a columnar member in an inverted triangle, has lower inclined surfaces on both sides of the lower part, is composed of a plurality of spaced apart on both sides in the longitudinal direction. The first guide member is disposed to form a plurality of receiving grooves in the lower portion, and is coupled to the lower portion of the first guide member, and is composed of a plurality to be accommodated in the plurality of receiving grooves. The cross section is formed in a triangular columnar shape. Disposed on both sides of the longitudinal direction, the second guide member having an upper inclined surface corresponding to the lower inclined surface on both sides, and the lower inclined surface of the first guide member facing each other and the upper inclined surface of the second guide member Connected but spaced apart from each other and coupled to each other, a lower inclined surface of the first guide member coupled to the engaging member and an upper inclined surface of the second guide member It is formed between the can be configured to include a sound guide passage for guiding the front of the first guide member for guiding the sound generated from the plate-shaped vibration plate.

In addition, the coupling member, a coupling protrusion formed on any one of the lower inclined surface of the first guide member and the upper inclined surface of the second guide member, and a coupling groove formed in another member in which the coupling protrusion is not formed It can be configured to include.

In addition, the present invention, in the speaker, the plate-shaped vibration plate having a flat upper and lower surfaces in a square shape, a driver for a speaker coupled to the lower surface of the vibration plate to vibrate the plate-shaped vibration plate, and on the upper portion of the vibration plate It is provided, and compresses the sound generated from the diaphragm, accommodates at least one stereoscopic guide of at least one plane sound source to guide a plane sound source in front of the diaphragm, accommodates the driver for the speaker and the diaphragm, and combines the plane sound source stereoscopic guide The case may be configured to include an edge that supports the vibration plate to vibrate against the case while connecting the edge of the flat plate-shaped vibration plate and the edge of the three-dimensional guide of the surface sound source.

In addition, in the case of a dome type diaphragm, an acoustic guide is arranged on the rear side of the diaphragm, and the arranged acoustic guide is applied in the same way, shape and theory as the sound guide used for the cone type diaphragm. That is, the position of the sound guide for converting the speaker having a dome-shaped diaphragm into a compressed surface sound source is arranged on the rear side of the diaphragm based on the diaphragm so that the sound outlet is characterized by coming out toward the rear side of the diaphragm.

According to the present invention, a cone-shaped dome-shaped flat speaker is provided with a three-dimensional sound guide on the front or rear of the diaphragm of a cone-shaped dome-shaped flat plate, and in the case of a cone-shaped diaphragm, the sound generated from the diaphragm is compressed and guided to the center of the face guide of the diaphragm. To generate a surface sound source from the front of the cone-shaped diaphragm, in the case of a dome type, the sound generated from the diaphragm is compressed and guided to the center of the face sound source guide of the dome-shaped diaphragm to generate a surface sound source from the back of the dome-shaped diaphragm, and in the case of a face-type diaphragm The sound generated from is compressed by the surface sound source guide of the diaphragm and the surface sound source is generated from the front or rear of the flat diaphragm. Also, depending on the type of each diaphragm, the sound guide provided on the front or rear is within a very close distance to the diaphragm. Eliminate acoustic interference and compress sound.

Also, the directivity control of sound is made very easy by changing the shape of the external sound guide among the sound guides.

Also, by compressing the sound from the same square wave speaker, it is converted to a plane wave before and after the installation of the sound guide, and it varies depending on the size of the simultaneous diaphragm, but generally has an effect of rising from 12db to 12db or more.

In addition, when a plurality of speakers having an acoustic guide are installed to have the same phase on the same surface, there is no phase between speakers, and interference between speakers is eliminated. As a result, the very high frequency band is reproduced as it is and transmitted to a very distant place, so that the sound is transmitted very clearly.

As a result, only one speaker with an acoustic guide or multiple speakers can be pre-arranged or arranged at the same time to improve output, and in this case, there is no interference between speakers. In other words, if multiple speakers are used on the same side, it acts like one speaker.

The speaker equipped with the acoustic guide has a super-directional radiation characteristic, and since the directional control is controlled through an external guide in both horizontal and vertical directions, the user can send a very clear and transparent sound to a very far place.

In the case of pre-arranged or face-arranged multiple speakers to obtain stronger sound power due to the feature of the surface sound source, there is little or no interference between the arranged speakers, so the sound attenuation to a certain distance is 1/3 or more than that of the existing point source speaker or line array. It has less than attenuation characteristics. Therefore, when radiating in the air at the same sound pressure, it is possible to transmit sound to a greater distance than a conventional point source speaker or line array.

A speaker equipped with an acoustic guide can prevent the interference of sound when a plurality of speakers are installed in order to obtain a three-dimensional sound in a narrow space. Therefore, the 3D sound can be perfectly reproduced in a car or a home theater broadcasting station church.

1 is a sectional view showing a conventional cone-shaped speaker.
Figure 2 is a cross-sectional view showing a three-dimensional guide surface sound source for a compressed cone driver according to the first embodiment of the present invention.
3 and 4 is an exploded perspective view showing a three-dimensional guide surface sound source of FIG.
Figure 5 is a cross-sectional view showing a cone-shaped speaker having a three-dimensional guide surface sound source of FIG.
Figure 6 is a cross-sectional view showing a cone-shaped speaker having a three-dimensional surface sound source guide according to a second embodiment of the present invention.
7 is a cross-sectional view showing a surface sound source direction guide in the cone-shaped speaker of FIG. 6.
8A and 8B are perspective views illustrating a three-dimensional guide of a surface sound source according to a third embodiment of the present invention.
9 is a cross-sectional view showing a three-dimensional guide surface sound source of FIG. 8;
10 is a cross-sectional view showing a speaker to which a stereoscopic guide of a surface sound source according to a third embodiment of the present invention is applied.
11 is a perspective view showing a three-dimensional guide surface acoustic source according to a fourth embodiment of the present invention.
12 is a cross-sectional view showing the three-dimensional guide sound source of FIG.
13 is a sectional view showing a speaker to which a three-dimensional guide of a sound source according to a fourth embodiment of the present invention is applied.
14 is a perspective view showing a stereoscopic guide of another type of sound source in the speaker of FIG. 13;
15 is a perspective view showing a state in which an acoustic variable unit is installed in a speaker having a face sound source guide according to an embodiment of the present invention.

The terms or words used in the present specification and claims are not to be construed as being limited to ordinary or lexical meanings, but the inventors may appropriately define the concept of terms in order to best describe their own invention in the best way. It can be interpreted as meanings and concepts consistent with the technical idea of the present invention based on the principle of 'can be.'

In addition, the configuration shown in the embodiments and drawings described in this specification are only exemplary embodiments of the present invention, and do not represent all of the technical spirit of the present invention, and can replace them at the time of application. It should be understood that there may be various equivalents and variations.

2 is a cross-sectional view showing a three-dimensional guide surface sound source for a compressed cone driver according to a first embodiment of the present invention, FIGS. 3 and 4 are exploded perspective views showing a three-dimensional guide surface sound source of FIG. 2, and FIG. 2 is a cross-sectional view showing a speaker having a three-dimensional guide surface sound source.

2 to 4, the surface sound source stereoscopic guide 120 for a compressed cone driver according to the first embodiment of the present invention is provided inside the cone-shaped vibration plate 110 in a cone-shaped speaker having a cone-shaped vibration plate. Thus, it is possible to guide the cone-shaped diaphragm 110 to the front while compressing the sound so as to form a plane sound source in front of the cone-shaped diaphragm 110.

The three-dimensional guide for the sound source for the compressed cone driver includes a conical body 121, first to nth conical ring bodies 121a, 121n, fastening means 125, a cover member 123, and a sound guide passage ( 127).

The cone 121 is provided inside the front of the cone-shaped diaphragm 110, but may be spaced apart at a predetermined distance from the front surface of the cone-shaped diaphragm 110. The conical body 121 is provided with a pointed one end facing the front of the cone-shaped diaphragm 110 and the other end of the surface shape facing the inner central portion of the cone-shaped diaphragm 110. The other side of the cone 121 is spaced a predetermined distance from the inner surface of the cone-shaped vibration plate 110, and may be formed as a convex curved surface in a shape corresponding to the inner surface of the cone-shaped vibration plate 110.

The first conical ring body 121a is formed with a first fitting hole 122a in the center and may be formed in a conical shape. That is, the first conical ring body 121a may be provided inside the cone-shaped diaphragm 110 in the state in which the conical body 121 is fitted into the first fitting hole 122a and coupled to the fastening means 125. When the conical body 121 is fitted into the first fitting hole 122a of the first conical ring body 121a, the outer surface of the conical body 121 is spaced apart from the inner surface of the first fitting hole 122a. Can be.

The second conical ring body 121b may form a second fitting hole 122b into which the first conical ring body 121a can be fitted, and may be formed in a conical shape. The first conical ring body 121a may be fitted into the second fitting hole 122b of the second conical ring body 121b in a state where the conical body 121 is coupled to be coupled to the fastening means 125. The first conical ring body 121a may be in a state in which the outer circumferential surface is spaced apart from the inner surface of the second fitting hole 122b of the second conical ring body 121b.

The n-1 conical ring body 121n-1 may form an n-1 fitting hole 122n-1 into which the n-2 conical ring body can be fitted, and may be formed in a circular horn shape. The n-2 conical ring body is a conical body 121, and the n-1 fitting hole 122n-1 of the n-1 conical ring body 121n-1 in a state where the first to n-3 conical ring bodies are combined. It can be fitted to fit.

The n-th conical ring body 121n may form an n-th fitting hole 122n into which the n-1-1 conical ring body 121n-1 can be fitted, and may be formed in a conical shape. The n-1th conical ring body 121n-1 is the nth of the nth conical ring body 121n in a state where the conical body 121 and the first to n-1th conical ring bodies 121a and 121n-1 are combined. It can be fitted to fit into the fitting hole (122n).

The cover member 123 covers the front part of the cone-shaped diaphragm 110 while the cone-shaped diaphragm 110 is coupled to a separate frame for fixing the front edge, the cone 121 and the first to n-th cone ring bodies 121a ) (121n) may be provided with a through hole (123a) in the center to emit the sound compressed by.

Here, the first to n-th fitting hole (122a) (122n) is a conical body 121, the first to the n-1 conical ring body (121a) (121n-1) is inserted into the fastening means 125 when coupled , The outer circumferential surfaces of the conical body 121 and the first to n-1 conical ring bodies 121a and 121n-1 may be spaced apart from the inner circumferential surface.

The n-th conical ring body 121n is fitted into the inner side of the through hole 123a formed in the cover member 123 and coupled with a fastening means, and its outer circumferential surface may be spaced apart from the inner circumferential surface of the through hole 123a.

Here, the inner shapes of the first to nth fitting holes 122a and 122n and the through holes 123a correspond to the outer circumferential surfaces of the conical body 121 and the first to nth conical ring bodies 121a and 121n, respectively. It can be formed in the form of a cone.

The conical body 121 and the first to nth conical ring bodies 121a and 121n are the first to nth conical ring bodies 121a and 121n and the first to nth fitting holes 122a of the cover member 123 (122n), when fitted into the through-hole (123a) and coupled to the fastening means 125, each of the conical body 121, the first to n-th conical ring body (121a) (121n) pointed end, as shown in Figure 2, It can be located at the same height.

The fastening means 125 fits the conical body 121 and the first to n-1 conical ring bodies 121a and 121n into the fitting holes of the first to nth conical ring bodies 121a and 121n, respectively. The role that the n-th conical ring body (121n) is fitted to the inside of the through hole (123a) of the cover member 123, and spaced apart from the inside surfaces of each of the fitting holes (121a) (121n) and the through hole (123a). Do it.

The fastening means 125 includes a conical body 121 and a plurality of fastening protrusions 125a respectively protruding from the outer circumferential surfaces of the lower ends of the first to nth conical ring bodies 121a and 121n, and the first to the first In the conical ring body (121a) (121n) may be configured to include a plurality of fastening grooves (125b) respectively formed on the lower inner peripheral surface of the lower inner peripheral surface of each fitting hole and the through hole (123a) of the cover member (123).

Specifically, the fastening protrusion 125a of the conical body 121 is fitted into the fastening groove 125b of the first conical ring body 121a, and the fastening protrusion 125a of the first conical ring body 121a is The second conical ring body (121b) may be fitted into the fastening groove (125b). Therefore, the fastening protrusion 125a of the n-1 conical ring body 121n-1 is fitted into the fastening groove 125b of the nth conical ring body 121n, and the fastening protrusion 125a of the nth conical ring body 121n ) Can be fitted into the fastening groove 125b of the cover member 123.

The negative guide passage 127 is in the space between the conical body 121 and the first conical ring body 121a after all of the conical body 121 and the first to nth conical ring bodies 121a and 121n are combined. The first guide passage 127a is formed, the second guide passage 127b is formed in the space between the first conical ring body 121a and the second conical ring body 121b, and the n-1-1 conical ring body 121n -1) and n-th guide passage 127n formed in the space between the n-th conical ring body 121n and n + 1 guide formed in the space between the n-th conical ring body 121n and the cover member 123 A passage 127n + 1 may be included.

As described above, the upper end of the portion formed by combining each of the first to nth fitting holes 122a and 122n with the conical body 121 and the first to nth conical ring bodies 121a and 121n, respectively, is a cover member. The diameter may be larger or smaller than the diameter of the through-hole 123a so that it is exposed to the outside through the through-hole 123a of the 123.

As described above, the lower end of the combined conical body 121 and the first to nth conical ring bodies 121a and 121n are separated from the inner surface of the cone-shaped diaphragm 110 so that the cone-shaped diaphragm 110 can be coupled. It may be formed of a convex curved surface corresponding to the inner surface. This is the same length of the first to n + 1 guide passages 127a (127n + 1) guiding the sound from the surface of the cone-shaped vibration plate 110 generating sound to the through hole 123a of the cover member 123. It is to form.

On the other hand, when the three-dimensional guide of the surface sound source is used for a high-pitched speaker, the width of the sound guide passages 127a and 127n + 1 must be formed constant because the wavelength of sound generated by the speaker is short. On the other hand, when the three-dimensional guide of the surface sound source is used in the speaker for the woofer, the width of the sound guide passage may be formed unevenly because the wavelength of the sound generated from the speaker is long.

In addition, the distance between the lower bottom surface of the three-dimensional guide sound source 120 and the surface of the cone-shaped diaphragm 110 may be constant.

The distance between the lower bottom surface of the three-dimensional guide sound source 120 and the surface of the cone-shaped vibration plate 110 is preferably formed to be larger than the vibration width of the cone-shaped vibration plate 110 that vibrates when sound is generated.

As described above, the planar sound source stereoscopic guide 120 may be envisioned by applying to a dome speaker having a dome-shaped diaphragm. That is, the dome-shaped diaphragm is formed similarly to the cone-shaped diaphragm arranged in reverse. Therefore, the three-dimensional guide of the surface sound source used in combination with the inside of the cone-shaped diaphragm can be used in combination with the inside of the dome-shaped diaphragm.

5 is a cross-sectional view showing a cone-shaped speaker having a stereoscopic guide for a surface driver for a cone driver according to a first embodiment of the present invention.

Referring to FIG. 5, a speaker 100 having a three-dimensional guide for a surface sound source for a cone driver according to a first embodiment of the present invention is provided under the cone-shaped diaphragm 110 and the cone-shaped diaphragm 110, and the cone-shaped diaphragm ( 110) to generate a sound by vibrating the driver 130, and the cone-shaped vibration plate 110 provided with the cone driver for the sound source stereoscopic guide 120, the surface sound source stereoscopic guide 120 includes, It can be implemented as a three-dimensional guide surface acoustic source for cone drivers according to an embodiment of the present invention described above.

The cone-shaped diaphragm 110 is formed in a conical shape, the lower portion is sharply formed, and the upper portion can be formed in a wide inverted triangle shape. The cone-shaped diaphragm 110 may have a space portion on which an upper surface (front) of the three-dimensional guide 120 for sound source can be installed.

The lower portion of the cone-shaped diaphragm 110 is provided with a coupling hole for coupling the voice coil 131 of the driver 130 that can flow (vibrate) the cone-shaped diaphragm 110 to be described later.

The cone-shaped diaphragm 110 may be coupled to the upper edge of the frame 140 formed in a cone shape with a space in the front so as to be flowable. Here, a fitting hole in which the voice coil 131 for vibrating the cone-shaped diaphragm 110 is coupled to the lower portion of the cone-shaped diaphragm 110 may be formed in the lower portion of the frame 140.

The plate 132 may be coupled to the bottom of the frame 140. The plate 132 may be formed with a through-hole through which a voice coil 131 is fitted in the center to reciprocate.

A pole piece 134a is protrudingly formed at the center of the lower side of the plate 132, and a yoke 134 having a donut-shaped magnet 133 coupled thereto may be coupled to the upper portion.

The voice coil 131 may be coupled to the lower end of the cone-shaped diaphragm 110 through the through hole of the plate 132 while being fitted to the outside of the pole piece 134a.

By connecting the upper outer periphery of the voice coil 131 and the frame 140 with a separate damper 135, the voice coil 131 does not flow and moves constantly between the plate 132 and the pole piece 134a. It can be made to move back and forth.

FIG. 6 is a cross-sectional view showing a speaker having a three-dimensional guide and a direction guide for a sound source according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view showing a direction guide for a surface sound source in the speaker of FIG. 6.

6 and 7, the speaker 200 according to the second embodiment of the present invention is provided below the cone-shaped diaphragm 210 and the cone-shaped diaphragm 210 to vibrate the cone-shaped diaphragm 210 to sound The driver 230 to generate the cone, the cone driver vibration surface 210 provided in the cone driver for the sound source stereoscopic guide 220, and the surface sound source stereoscopic guide 220 coupled to the front of the sound source direction guide 250 ), The surface sound source stereoscopic guide 220 may be implemented as the surface sound source stereoscopic guide 120 for a cone driver according to the first embodiment of the present invention described above.

Since the surface sound source stereoscopic guide 220 is implemented as a surface sound source stereoscopic guide for a cone driver according to the first embodiment of the present invention, detailed description thereof will be omitted.

The surface sound source direction guide 250 guides the surface sound source coming out of the cone-shaped speaker through the surface sound source stereoscopic guide 220 to be radiated to a specific area within a certain angle in a specific direction.

The surface sound source direction guide 250 includes a circular or elliptical outer guide 251, a first up and down cone 250a, and a second to nth up and down cone 250b, 250n, fastening means, horizontal member, sound It may be configured to include a passage 255 for transmitting.

The outer guide 251 is formed in an inverted conical shape in an inverted triangular cross section, and an upper portion (front) is opened to form a space portion in which first to nth up and down cones 250a and 250n are installed inside.

The first up and down cone 250a may be provided inside the circular or elliptical horn 110. The first up and down cone 250a may have a lower inclined surface 250a "corresponding to the inner surface of the outer guide 251 having a circular or elliptical shape. The first up and down cone 250a is formed in a rhombus shape. An upper inclined surface 250a 'having the same size as the lower inclined surface 250a "may be provided.

The second to nth upper and lower cones 250b and 250n may be formed in a ring shape having a rhombus cross section. The second to nth up and down cones 250b and 250n have respective lower inclined surfaces 250b "and 250n" having upper inclined surfaces 250 'of the first to n-1 up and down cones 250a and 250n-1. ) (250n-1 ') while being spaced apart and coupled to the inner surface of the circular or elliptical outer guide 251, respectively.

The second to nth upper and lower cones 250b and 250n may have upper inclined surfaces 250b 'and 250n' of the same size as each of the lower inclined surfaces 250b "and 250n".

The lengths of the lower inclined surfaces 250b "and 250n" of the second to nth up and down cones 250b and 250n are respectively upper inclined surfaces 250a of the first to n-1 up and down cones 250a and 250n-1. It can be formed to a size of 1/2 with respect to the length of ') (250n-1'). The length of each of the upper inclined surfaces 250b 'and 250n' in the second to nth up and down cones 250b and 250n may be formed to have the same size as the length of each of the lower inclined surfaces 250b "and 250n". have.

The second to nth upper and lower cones 250b and 250n may be formed of a ring member having a rhombus cross section, and may have a number of 2 ^(n-1) . That is, the third to nth upper and lower cones 250c and 250n may be configured in plural, but may be configured to have a larger diameter.

Here, the first to n-th upper and lower cones 250a and 250n may be formed of an impermeable material through which sound cannot pass.

The fastening means are first to n-th while engaging the lower inclined surfaces 250a "and 250n" of the first to nth upper and lower cones 250a and 250n to the inner surface of the circular or elliptical outer guide 251, respectively. 1 upper to lower inclined surfaces 250a '(250n-1') of upper and lower cones 250a, 250n-1, respectively, from 2 to n lower inclined surfaces 250b "and 250n-1 of upper and lower cones 250b and 250n. "), Respectively.

The fastening means includes a plurality of inner inclined surfaces of the circular or elliptical outer guide 251 and the upper inclined surfaces 250a 'and 250n-1' of the first to n-1 upper and lower cones 250a and 250n-1. The fastening grooves provided at the respective positions and the fastening pins provided at the plurality of positions of the respective lower inclined surfaces 250a "and 250n" in the first to nth upper and lower cones 250a and 250n so as to fit into the fastening grooves are provided. It can be configured to include.

The horizontal member 253 is coupled to each upper apex of the first to nth upper and lower cones 250a and 250n, and may be configured in a direction (horizontal direction) orthogonal to the traveling direction of sound (sound). . The horizontal member 253 does not absorb sound and may be formed of a material having a plurality of voids.

The horizontal member 253 is the space between the first upper and lower cones 250a and the nth upper and lower cones 250n, the thickness of the portion of the first to nth upper and lower cones 250a and 250n contacting the upper apex, n The space between the upper and lower cones 250n and the second upper and lower cones 250b may be formed smaller than the thickness of the portion corresponding to the space between the nth upper and lower cones 250n and the n-1 upper and lower cones 250n-1. have.

The passage 255 for transmitting sound is a space between the inner surface of the circular or elliptical outer guide 251 and the lower inclined surfaces 250a "and 250n" of the first to nth upper and lower cones 250a and 250n. Upper slopes 250a '(250n-1') of the 1st to n-1 upper and lower cones 250a and 250n-1 and lower slopes 250b of the second to nth upper and lower cones 250b and 250n ( 250n).

First, the width of the passageway 255 provided between the inner surface of the circular or elliptical outer guide 251 and the lower inclined surfaces 250a "and 250n" of the first to nth upper and lower cones 250a and 250n is zero. It can be configured such that it decreases by 1/2 from the upper and lower cones 250a toward the nth upper and lower cones 250n. That is, when the width of the passage 255 between the inner surface of the circular or elliptical horn 250 and the lower inclined surface 250a "of the first vertical cone 250a is W, the circular or elliptical outer guide 251 The width of the passageway 255 between the inner surface and the lower inclined surface 250b "of the second upper and lower cone 250b is 1/2 W, and the inner surface of the circular or elliptical outer guide 251 and the nth upper and lower cone 250n ), The width of the passage between the lower inclined surfaces 250n ") is 1/2 ^(n-1) W.

The width of the passage between the upper inclined surface 250a 'of the first up and down cone 250a and the lower inclined surfaces 250b "and 250n" of the second to nth up and down cones 250b and 250n is the second up and down cone From (250b) it can be configured to be smaller by 1/2 as it goes toward the n-th and upper cones (250n). That is, when the width of the passage 255 between the inner surface of the circular or elliptical outer guide 251 and the lower inclined surface 250a "of the first up and down cone 250a is W, the width of the first up and down cone 250a The width of the passage 255 between the upper inclined surface 250a 'and the lower inclined surface 250b "of the second up and down cone 250b is 1/2 W, and the upper inclined surface 250a' of the first up and down cone 250a is And the width of the passage between the lower inclined surface 250n "of the nth upper and lower cone 250n is 1/2 ^(n-1) W.

The width of the passage between the upper inclined surface 250b 'of the second upper and lower cones 250b and the lower inclined surfaces 250c "and 250n" of the third to nth upper and lower cones 250c and 250n is the third upper and lower cones From (250c) it can be configured to be smaller by 1/2 toward the n-th and upper cones (250n). That is, when the width of the passage between the inner surface of the circular or elliptical outer guide 251 and the lower inclined surface 250a "of the first up and down cone 250a is W, the upper inclined surface of the second up and down cone 250b ( 250b ') and the width of the passage between the lower inclined surface 250c "of the third up and down cone 250c is 1/4 W, and the upper inclined surface 250b' of the second up and down cone 250b and the n up and down cone ( The width of the passage between the lower slopes 250n "of 250n) is 1/2 ^(n-1) W.

Accordingly, the upper inclined surface 250n-2 'of the n-2 upper and lower cones 250n-2 and the lower inclined surface 250n-1 "of the n-1 to n-th upper and lower cones 250n-1 and 250n) ( 250n "), the width of the passage may be configured to be smaller by 1/2 from the n-1 up and down cone 250n-1 to the n up and down cone 250n.

The cone-shaped diaphragm 210 is formed in a conical shape, the lower portion is sharply formed, and the upper portion may be formed in a wide inverted triangle shape. The cone-shaped diaphragm 210 may be provided with a space portion on which an upper surface (front) of the three-dimensional guide of the sound source 220 can be installed.

The lower portion of the cone-shaped vibration plate 210 is provided with a coupling hole for coupling the voice coil 231 of the driver 230 that can flow (vibrate) the cone-shaped vibration plate 210 to be described later.

The cone-shaped diaphragm 210 may be coupled to the upper edge of the frame 240 formed in a cone shape with a space in the front so as to be flowable. Here, a fitting hole through which the voice coil 231 that vibrates the cone-shaped diaphragm 210 is coupled may be formed in the lower portion of the frame 240 by being coupled to the lower portion of the cone-shaped diaphragm 210.

The lower side of the frame 240 is provided with a yoke 234 having a space in which the upper portion is opened. A magnet 233 may be seated on the inner bottom of the yoke 234. The plate 232 is seated on the top surface of the magnet 233. At this time, the plate 232 may be in a state in which a certain distance is spaced from the inner upper edge of the yoke 234.

The voice coil 231 may be coupled to flow up and down between the plate 232 and the yoke 234. The upper end of the voice coil 231 is coupled to the lower portion of the cone-shaped diaphragm 210, and the cone-shaped diaphragm 210 flows up and down to generate sound.

When the voice coil 231 reciprocates between the plate 232 and the yoke 234 by connecting a separate damper 235 between the top of the voice coil 231 and the frame 240, the voice coil 231 does not flow and reciprocates constantly. I can make it possible.

On the other hand, a dome-shaped diaphragm used in a dome-shaped speaker is a shape in which a cone-shaped diaphragm is turned upside down, and a portion having space is provided toward the driver. Accordingly, the three-dimensional guide of the surface sound source used in the dome-shaped diaphragm according to the embodiment of the present invention can be applied to the three-dimensional guide of the compressed surface sound source for a cone driver according to the first embodiment of the present invention described above.

Specifically, as described in the first embodiment of the present invention, the dome-shaped diaphragm can be applied by installing a three-dimensional surface sound source guide installed inside the cone-shaped diaphragm in the inner space of the dome-shaped diaphragm. That is, it is possible to install the three-dimensional guide surface acoustic source according to the first embodiment described above in the inner space provided at the rear of the dome-shaped diaphragm.

Therefore, detailed description of the three-dimensional guide of the surface sound source installed inside the dome-shaped diaphragm will be omitted.

The compression type sound source stereoscopic guide according to the third embodiment of the present invention compresses while guiding the sound of an uncompressed planar wave generated in a flat plate-shaped vibration plate and compresses it to generate a compressed flat wave shape sound. Can be installed in front of the configuration. The three-dimensional guide of the compressed surface sound source that guides the uncompressed planar wave generated in the flat plate-shaped diaphragm to generate a compressed planar wave-shaped sound will be described in detail below.

8 to 9 are shown for explaining a compression-type sound source stereoscopic guide installed in front of a diaphragm in a square shape, and FIGS. 11 to 12 are compressed in a shape installed in front of a flat plate-shaped diaphragm. It is shown to explain the three-dimensional guide of a face sound source.

Specifically, FIGS. 8A and 8B are exploded perspective views showing a compressed surface sound source stereoscopic guide according to a third embodiment of the present invention, and FIG. 9 is a cross-sectional view illustrating the compressed surface sound source stereoscopic guide of FIG. 8.

8 to 9, the surface sound source stereoscopic guide 320 according to the third embodiment of the present invention includes a first upper member 321a, a first lower member 322a, and a second upper member 321b. ), A second lower member 322b, an n upper member 321n, an n lower member 322n, a coupling member 325, and a sound guide passage 326. .

The first upper member 321a may be formed in a conical shape with an inverted triangle in cross section. The first upper member 321a may have a lower inclined surface 321a-1 at the bottom. That is, the first upper side member 321a may be formed with a flat top surface and a sharp bottom surface.

The first lower member 322a may be formed of a ring member having a triangular cross section, and may have a first through hole in the center of which the pointed bottom of the first upper member 321a is the center. The first lower member 322a may have a flat surface at the bottom and a pointed portion at the top.

The first lower member 322a may have a groove portion into which the first upper member 321a is fitted. The groove portion may be formed in a cone shape larger than the first upper member 321a. The first lower member 322a may include an upper inner inclined surface 322a-1 and an upper outer inclined surface 322a-2, which are inner surfaces of the groove portion.

The upper inner inclined surface 322a-1 of the first lower member 322a corresponds to the lower inclined surface 321a-1 of the first upper member 321a, and may be provided at a predetermined interval.

The second upper member 321b may be formed in a ring shape having a first through hole in which the upper end of the first upper member 321a is fitted at the center. The second upper member 321b has an inverted triangular cross-section, and may have a lower inner inclined surface 321b-1 and a lower outer inclined surface 321b-2 at the lower portion. The first through hole of the second upper member 321b may be formed larger than the upper end of the first upper member 321a.

The second upper member 321b may have a groove portion that can accommodate the first lower member 322a at the bottom. In the second upper side member 321b, an inner surface of the groove portion may form a lower inner slope surface 321b-1, and an outer surface may constitute a lower outer slope surface 321b-2.

The second lower member 322b may be formed as a ring member having a second through hole in which the lower end of the first lower member 322a is fitted at the center. The second lower member 322b has a triangular cross section and may protrude upward. The second lower member 322b may have a groove portion capable of accommodating the second upper member 321b at the upper portion. The second lower member 322b may include an upper inner inclined surface 322b-1, which is an inner surface of the groove portion, and an upper outer inclined surface 322b-2, which is an outer surface. Therefore, the upper inner inclined surface 322b-1 of the second lower member 322b corresponds to the lower inner inclined surface 321a-1 of the second upper member 321a, and may be formed at a predetermined interval.

The n-th upper member 321n may be formed as a ring member having an n-1 through-hole through which the upper end of the n-1 upper member is fitted at the center. The n-th upper member 321n has an inverted triangle in cross section and may be formed to protrude downward. The n-th upper member 321n may include a groove portion accommodating the n-1 lower member at the lower portion. The n-th upper member 321n may have a lower inner inclined surface 321n-1, which is an inner surface of the groove, and an outer surface of the groove may constitute a lower outer inclined surface 321n-2. Accordingly, the lower inner inclined surface 321n-1 of the n-th upper member 321n may be configured to be spaced apart at a predetermined distance while corresponding to the upper outer inclined surface of the n-th lower member. The lower outer inclined surface 321n-2 of the n-th upper member 321n may be configured to be spaced apart at a predetermined distance while corresponding to the upper inner inclined surface 322n-1 of the n-th lower member 322n, which will be described later.

The n-th lower member 322n may be formed as a ring member having an n-th through hole through which a lower end of the n-1 lower member is fitted at the center. The n-th lower member 322n has a triangular cross section and may be formed to protrude upward. The n-th lower member 322n may include a groove portion accommodating the n-1 upper member at the top. The n-th lower member 322n may have an upper inner inclined surface 322n-1 which is an inner surface of the groove portion, and an upper outer inclined surface 322n-2 that is an outer surface. Accordingly, the upper inner inclined surface 322n-1 of the n-th lower member 322n may be configured to be spaced apart at a predetermined distance while corresponding to the lower outer inclined surface 321n-2 of the n-th upper member 321n. The upper outer inclined surface 322n-2 of the n-th lower member 322n may be configured to be spaced apart a predetermined distance while corresponding to the lower inner inclined surface 323a of the finishing ring member 323 to be described later.

The finishing ring member 323 may be fitted to the upper portion of the n-th lower member 322n so as to form the outer surface of the three-dimensional guide sound source 320 as a vertical surface. Accordingly, the lower inner inclined surface 323a corresponding to the upper outer inclined surface 322n-2 of the n-th lower member 322n may form an inner surface of the finishing ring member 323.

Meanwhile, the finishing ring member 323 may be integrally formed with the nth lower member 322n. That is, the n-th lower member 322n is formed as a ring-shaped member, and the outer surface may be formed as a vertical surface. The n-th lower member 322n may form an inner surface as an upper inner inclined surface 322n-1 corresponding to the lower outer inclined surface 321n-2 of the n-th upper member 321n.

The coupling member 325 may combine the first to nth upper members 321a and 321n with the first to nth lower members 322a and 322n and the finishing ring member 323. At this time, the coupling member 325 is formed by combining the lower inclined surface 321a-1 of the first upper member 321a and the upper inner inclined surface 322a-1 of the first lower member 322a while being spaced apart from each other. The sound guide passage 327 to be described later is formed by combining the lower outer inclined surface 321n-2 of the n upper member 321n and the upper inner inclined surface 322n-1 of the nth lower member 322n. can do.

The coupling member 325 is a coupling protrusion formed on any one of the first to nth upper members 321a and 321n or the first to nth lower members 322a and 322n, and the coupling protrusion is not formed. It can be configured to include a coupling groove formed in the other member.

The sound guide passage 327 is provided between the lower inclined surfaces of the first to nth upper members 321a and 321n and the upper inclined surfaces of the first to nth lower members 322a and 322n, and the flat plate diaphragm 310 ) Can be guided so that the sound generated in the front of the diaphragm 310, that is, the surface sound source is generated in front of the three-dimensional guide 320 of the surface sound source.

10 is a cross-sectional view showing a speaker according to a third embodiment of the present invention.

Referring to FIG. 10, the speaker 300 according to the third embodiment of the present invention is coupled to the diaphragm 310 and the lower surface of the diaphragm 310 in which the upper and lower surfaces are formed flat in a circular shape. ) The driver 330 for vibrating the speaker, and one or more surface sound sources provided on the upper portion of the diaphragm 310 and compressing the sound generated from the diaphragm 310 to guide the surface sound source to be generated in front of the diaphragm 310 The three-dimensional guide 320, the driver 330 for the speaker and the cylindrical case 340 accommodating the diaphragm 310, the edge of the flat plate-shaped diaphragm 310 and the edge of the plane sound source stereoscopic guide 320 It may be configured to include an edge 350 that connects and connects the diaphragm 310 so as to flow with respect to the case 340.

Since the surface sound source stereoscopic guide 320 is implemented as the surface sound source stereoscopic guide according to the third embodiment of the present invention, detailed description thereof will be omitted.

The surface sound source stereoscopic guide 320 may be configured as one, or may be composed of two or more, and the two or more surface sound source stereoscopic guides 320 may be formed in the same manner.

In detail, when the two or more surface sound source stereoscopic guides 320 are configured, they may be combined to form a layer overlapping each other. At this time, the two or more surface sound source stereoscopic guides 320, the top surface of the surface sound source stereoscopic guides 320 constituting the odd numbered layers from among multiple layers face upward, and the surface sound source stereoscopic guides constituting the even numbered layers ( 320) may be configured in plural after the upper surface thereof is directed downward. That is, the surface sound source stereoscopic guide 320 constituting the odd layer may be turned over to construct the surface sound source stereoscopic guide 320 forming the even layer.

The edge 350 may connect the edge of the flat plate-shaped diaphragm 310 and the edge of the three-dimensional guide 320 of the face sound source so that the plate-shaped diaphragm 310 can be flowed with respect to the case 340. That is, when the vibration plate 310 is vibrated by the driver 330 for the speaker, the edge 360 serves to support the vibration plate 310 so that it can freely move up and down relative to the case 340.

The driver 330 for the speaker has a gap between the yoke 332 on which the magnet 331 is seated on the lower upper portion, and a plate 333 seated on the magnet 331 with a gap between the yoke 332, and is movable in the gap The voice coil unit 334 configured by winding the coil on the outside of the sleeve to be fitted, the adapter 335 coupling the upper end of the sleeve of the voice coil unit 334 to the diaphragm 310, and the voice coil unit 334 ) Has a through hole coupled to the outer periphery of the rim can be configured to include a damper 336 coupled to the upper portion of the yoke 332. In addition, an outer damper 337 may be further included between the outer side of the yoke 332 and the diaphragm 310.

11 and 12 is an exploded perspective view and a cross-sectional view showing a three-dimensional guide surface acoustic source according to a fourth embodiment of the present invention.

Referring to FIGS. 11 and 12, the surface sound source stereoscopic guide 420 according to the fourth embodiment of the present invention is disposed in front of the diaphragm 410 having a flat plate shape and is generated in the diaphragm 410 By guiding the sound, it may be configured to include a plurality of first guide members 421, a plurality of second guide members 422, a coupling member 423, and a sound guide passage 424.

The first guide member 421 has an inverted triangular cross-section and is formed of a columnar member, and may have lower inclined surfaces 411a on both lower sides. The first guide member 421 may be composed of a plurality and continuously disposed in a direction orthogonal to the longitudinal direction. That is, the plurality of first guide members 421 may be configured by arranging both sides of a long side close to each other, but spaced apart at regular intervals so as to form a negative passage through which the sound can pass. The plurality of first guide members 421 are spaced apart at regular intervals and continuously arranged, so that a plurality of receiving grooves may be provided at the lower portion. The plurality of receiving grooves can accommodate the second guide member 422, which will be described later.

The second guide member 422 is formed of a triangular columnar member in cross section, and may have upper inclined surfaces 412a on both sides. The second guide member 422 may be composed of a plurality and continuously disposed in a direction orthogonal to the longitudinal direction. That is, the plurality of second guide members 422 may be configured by arranging both sides of a long side close to each other, but spaced apart at regular intervals so as to form a negative passage through which the sound can pass. The plurality of second guide members 422 are spaced apart at regular intervals and continuously arranged, so that a plurality of receiving grooves may be provided on the upper portion. The plurality of receiving grooves may accommodate a plurality of first guide members 421.

Accordingly, a plurality of first guide members 421 are accommodated in a plurality of receiving grooves provided in the plurality of second guide members 422, and a plurality of receiving grooves provided in the plurality of first guide members 421 are provided. Since the second guide member 422 of the housing is accommodated and coupled, a flat surface sound source stereoscopic guide 420 having a flat upper surface and a lower surface may be formed.

The coupling member 423 combines the plurality of first guide members 421 and the plurality of second guide members 422, and may include a plurality of coupling protrusions and a plurality of coupling grooves.

The plurality of engaging projections may be formed on the inclined surface of any one of the lower inclined surface 421a of the first guide member 421 and the upper inclined surface 422a of the second guide member 422. A plurality of coupling grooves may be formed on the inclined surface of another member where the coupling protrusion is not formed.

The sound guide passage 424 may guide sound generated from the square-shaped flat plate diaphragm 410 to the front of the three-dimensional guide 420. The sound guide passage 424 may be formed between the lower inclined surface 421a of the first guide member 421 and the upper inclined surface 422a of the second guide member 422 coupled by the coupling member 423.

13 is a cross-sectional view showing a speaker having a three-dimensional guide surface sound source according to a fourth embodiment of the present invention.

Referring to FIG. 13, a speaker 400 having a three-dimensional guide of a surface sound source according to a fourth embodiment of the present invention includes a flat plate-shaped diaphragm 410 and a flat plate-shaped diaphragm 410 in which the upper and lower surfaces are formed in a square shape. ) Is coupled to the lower portion of the speaker driver 430 for vibrating the plate-shaped diaphragm 410, and is provided on the top of the plate-shaped diaphragm 410, the sound generated from the diaphragm 410 from the front of the diaphragm 410 At least one or more surface sound source stereoscopic guides 420 for guiding to be converted to a surface sound source, a case 440 for receiving a speaker driver 430, a diaphragm 410, and combining the surface sound source stereoscopic guides 420, The plate-shaped diaphragm 410 may be configured to include an edge 450 for connecting and supporting the plate-shaped diaphragm 410 so as to vibrate with respect to the case () while connecting the three-dimensional guide 420 to the surface sound source.

Since the surface sound source stereoscopic guide 420 is implemented as the surface sound source stereoscopic guide according to the fourth embodiment of the present invention, detailed description thereof will be omitted.

The surface sound source stereoscopic guide 420 may be configured as one, or may be composed of two or more, and two or more surface sound source stereoscopic guides 420 may be formed and configured in the same manner.

In more detail, when the two or more surface sound source stereoscopic guides 420 are configured, they may be combined to form a layer overlapping each other. At this time, the two or more surface sound source stereoscopic guides 420, the top surface of the surface sound source stereoscopic guides 420 constituting the odd numbered layers from among the multiple layers face upward, and the surface sound source stereoscopic guides constituting the even numbered layers ( After the top surface of 420) is directed downward, it may be configured in plural. That is, the surface sound source stereoscopic guide 420 constituting the odd layer may be turned over to form the surface sound source stereoscopic guide 420 constituting the even layer.

The edge 450 may connect the flat plate vibrating plate 410 so as to be flowable relative to the case while connecting the edge of the flat plate diaphragm 410 and the edge of the three-dimensional guide 420. That is, the edge 450 serves to support the vibration plate 410 so that it can freely move up and down relative to the case when the flat plate diaphragm 410 is vibrated by the driver 430 for the speaker.

The driver 430 for the speaker has a gap between the yoke 432 on which the magnet 431 is seated on the lower upper portion, and a plate 433 seated on the magnet 431 with a gap between the yoke 432, and is movable in the gap The voice coil unit 434 configured by winding the coil on the outside of the sleeve to be fitted, the adapter 435 coupling the upper end of the sleeve of the voice coil unit 434 to the diaphragm 410, and the voice coil unit 434 ) Has a through hole coupled to the outer periphery of the rim can be configured to include a damper 436 coupled to the upper portion of the yoke (432). In addition, an outer damper 437 may be further included between the outer side of the yoke 432 and the diaphragm 410.

In addition, Figure 14 is a perspective view showing a surface sound source guide of another form applied to the speaker according to the fourth embodiment of the present invention.

As shown in FIG. 14, the three-dimensional guide of the surface sound source 420 'is formed with a plurality of circular or polygonal holes 421' spaced apart from each other in the longitudinal direction and the width direction, and is formed as a flat or polygonal flat member. can do. In the fourth embodiment of the present invention, a circular hole is formed in a rectangular plate member. Here, the plurality of circular or polygonal holes 421 'serves to guide the sound generated from the diaphragm 410 forward.

The speaker may further include an acoustic variable unit 460 that is rotatably coupled to the edge of the three-dimensional guide of the surface sound source and capable of varying and spreading the sound generated in front of the three-dimensional guide of the surface sound source to the user's will.

The acoustic variable unit 460 is a variable panel 461 that can adjust the radiation angle at which the sound spreads when the sound generated from the diaphragm is transmitted from the front of the speaker to the audience by a sound source stereoscopic guide. ), May include an angle setting unit 462.

The variable panel 461 may be hinged to the front edge of the speaker, that is, the front edge of the outer case of the configuration of the speaker. That is, the variable panel 461 may be hinged to the front edge of the three-dimensional guide of the surface sound source constituting the front of the speaker.

The variable panel 461 is configured to be rotated outward in the state of forming the same plane as the outer surface of the speaker, that is, the outer surface of the case constituting the outer surface of the three-dimensional guide of the surface sound source in the speaker.

Separate hinges for fixing the variable panel 461 relative to the outer surface of the speaker may be provided on the outer surface of the speaker and the outer surface of the variable panel 461. At this time, the hinge may be configured to form a groove on the outer surface of the speaker and the outer surface of the variable panel 461 without protruding from the outer surface of the speaker and the outer surface of the variable panel 461 and configured to be accommodated in the groove. This is to prevent the hinges from interfering with other speakers when placing a plurality of speakers in close contact with each other.

Here, the variable panel 461 may be configured in plural. That is, the number of the variable panels 461 is determined according to the outer shape of the speaker, and as an example, when the outer shape of the speaker is a square shape, it can be composed of four.

When a plurality of variable panels 461 are installed on the outer edge of the speaker, both edges of the variable panels 461 adjacent to each other may be in contact with each other. Therefore, both side edges of the variable panel 461 adjacent to each other may be formed with an inclined surface at a certain angle. At this time, the inclination angle forming the inclined surfaces of both edges of the variable panel 461 may be determined by the number of the variable panels 461. As in the exemplary embodiment of the present invention, four variable panels 461 are formed, and since each of the variable panels 461 adjacent to each other forms 90 degrees, the inclined surfaces of the side edges adjacent to each other can be formed at 45 degrees.

The angle setting unit 462 adjusts the angle of the variable panel 461, that is, the angle between the variable panel 461 hinged to the outer edge of the speaker and the outer surface of the speaker, and includes a plurality of engaging projections 462a. , It may include a plurality of connecting members (462b), a bridge (462c), and a flow prevention portion (462d).

The plurality of coupling protrusions 462a may be provided in a shape protruding toward the front of the speaker from the top (front end) of the plurality of variable panels 461. The coupling protrusion 462a may be configured by combining the variable panel 461 with a separate bracket or integrally configured with the variable panel 461. The coupling protrusion may have a plurality of fixing holes.

Each of the plurality of connecting members 462b may be connected to a plurality of coupling protrusions 462a. The plurality of connecting members 462b may be hinged to the bridge 462c, which will be described later, disposed at the center of the speaker, with each other end disposed toward the center of the speaker. The connecting member 462b may include a slit groove 462b-1 formed at a predetermined length from one end to the other end. In addition, the connecting member 462b may be provided with a plurality of fitting holes 462b-2 penetrating in the lateral direction at regular intervals. The plurality of fitting holes 462b-2 penetrate the connecting member 462b in the lateral direction in the direction in which the slit grooves 462b-1 are formed, but may be formed through the slit grooves 462b-1. That is, the connecting member 462b may be coupled to the engaging protrusion 462a by a separate pin member after the engaging protrusion 462a is fitted through the opening of the slit groove 462b-1 at one end.

The bridge 462c connects the other ends of the plurality of connecting members 462b at the center of the speaker to maintain the rotated state of the variable panel 461. The bridge 462c may be formed of a circular or polygonal bracket. The bridge 462c may be provided with protrusions 462c-1 hinged to the other ends of the plurality of connecting members 462b at the edges. The plurality of protrusions 462c-1 may be formed of the same number as the variable panel 461 so that the variable panel 461 composed of a plurality of members can be connected to the connecting member 462b, respectively.

The flow preventing portion 462d includes a connecting bracket connecting the connecting member 462b and the bridge 462c among the plurality of connecting members 462b, and both ends of the connecting bracket, respectively, connecting members 462b and the bridge 462c It may include a fastening member for fixing to each.

The connecting bracket connects between the connecting member 462b and the bridge 462c, but the upper surface of the connecting member 462b and the upper surface of the bridge 462c are fixed to be in the same plane, that is, horizontal, so that the bridge 462c flows up and down. Can be prevented.

The connection bracket may have a long hole from an end (one end) connected to the bridge 462c to the center. The long hole allows the connection bracket to be fixed by adjusting the length of the connection bracket when the connection bracket is fixed to the bridge 462c. A fitting protrusion that can be fixed to the fastening member by being fitted into the slit groove 262b-1 of the connecting member 262b may be formed at the other end of the connecting bracket.

The acoustic variable unit 460 may include a band 463 surrounding the plurality of variable panels 461. The band 463 may be formed of an elastic material so that it can expand or contract when the angle of the variable panel 461 is adjusted. The acoustic variable unit 460 is provided between the variable panels 441 adjacent to each other, and is a space generated between the variable panels 461 and the variable panels 461 due to the angle adjustment of the variable panels 461. It may further include an auxiliary member that does not leak in the lateral direction. When the angle of the variable panel 461 is not adjusted, that is, when there is no space between the variable panel 461 and the variable panel 461, the auxiliary members are folded and are adjacent to each other of the variable panels 461. It can be adhered to the side. After the angle of the variable panel 461 is adjusted, the auxiliary member may prevent the space generated between the variable panel 461 and the variable panel 461 from leaking in the lateral direction. That is, the auxiliary member is formed of a material having elasticity, and can be configured to contract or expand according to the adjustment angle of the variable panel 461.

100: speaker
110: cone-shaped diaphragm
120: three-dimensional guide sound source
121: conical
121a: first conical ring body 121b: second conical ring body
121n-1: n-1 conical ring body 121n: n n conical ring body
123: cover member 125: fastening means
127: Well guide passage
127a: first guide passage 127b: second guide passage
127n-1: n-1 guide passage 127n: n n guide passage
127n + 1: n + 1 guide passage
130: driver
131: voice coil 132: plate
133: magnet 134: York
134a: pole piece
135: damper
140: frame
200: speaker
210: cone-shaped diaphragm 220: three-dimensional guide sound source
230: driver 231: voice coil
232: plate 233: magnet
234: York 235: damper
240: frame
250: face sound source direction guide
250a: first up and down cone 250a ': upper slope
250a ": lower slope
250b: second upper and lower cone 250b ': upper slope
250b ": lower slope
250n-2: n-2 upper and lower cone 250n-2 ': upper slope
250n-2 ": lower slope
250n-1: n-1 up and down cone 250n-1 ': upper slope
250n-1 ": lower slope
250n: nth up and down cone 250n ': upper slope
250n ": lower slope
251: external guide
255: passage
300: speaker
310: flat plate diaphragm
320: three-dimensional guide sound source
321a: first upper member 321a-1: lower slope
321b: second upper member 321b-1: lower inner slope
321b-2: Lower outer slope
321n: n-th upper member 321n-1: lower inner slope
321n-2: lower outer slope
322a: first lower member 322a-1: upper inner slope
322a-2: Upper outer slope
322b: second lower member 322b-1: upper inner slope
322b-2: Upper bar outer slope
322n: nth lower member
323: finishing ring member 325: engaging member
327: Well guide passage
330: speaker driver 350: edge
400: speaker
410: diaphragm
420: plane sound source three-dimensional guide 421: first guide member
421a: Lower slope
422: second guide member 422a: upper slope
423: coupling member 424: sound guide passage
430: speaker driver 450: edge

Claims (22)

Cone provided on the front inner side of the cone-shaped diaphragm, the cone-shaped diaphragm spaced a predetermined distance from the front surface;
A first conical ring body having a first fitting hole to which the conical body is fitted and coupled to the center, and provided to the front inner side of the cone-shaped diaphragm in a conical shape;
A second conical ring body and a second conical ring body to which the first conical ring body and the n-1 conical ring body can be fitted are provided in the center, and the second conical ring body to the second conical ring body provided in the front inside of the cone-shaped diaphragm n conical ring body;
A through hole that covers the rest except the front center portion of the cone-shaped diaphragm and generates a sound generated by the cone-shaped diaphragm and guided by the conical, first to n-th conical ring bodies from the center of the cone-shaped diaphragm to a surface sound source. Cover member for providing a central portion;
The conical body and the first to n-1 conical ring bodies are respectively coupled to the inner surfaces of the first to nth fitting holes of the first to nth conical ring bodies, and the nth conical ring bodies are inside the through hole of the cover member. A fastening means to be coupled to, but spaced apart from, the inner surface of each fitting hole and the through hole;
Composed, including a three-dimensional compressed surface sound source guide. According to claim 1,
The fastening means,
A plurality of fastening protrusions respectively protruding from the outer circumferential surface of the lower end of the conical body and the first to n-1 conical ring bodies;
Comprising a plurality of fastening grooves respectively formed on the lower inner peripheral surface of each fitting hole and the lower inner peripheral surface of the through-hole of the cover member in the first to n-th conical ring body,
Compression type sound source stereoscopic guide. According to claim 1,
The conical body, the first to n-th conical ring body, is provided between each of the cover member,
Compressed surface sound source three-dimensional guide further comprises a sound guide passage to generate the sound generated from the cone-shaped diaphragm through the through hole of the cover member. According to claim 3,
The sound guide passage,
A first guide passage formed between the conical body and the first conical ring body,
A second guide passage formed between the first conical ring body and the second conical ring body,
An n-guide passage formed between the n-1 conical ring body and the n-conical ring body,
An n + 1 guide passage formed between the n-th conical ring body and the cover member;
Composed, including a compressed surface sound source stereoscopic guide. According to claim 3,
The interval between the inner surface of the cone-shaped diaphragm and the lower surface of the cone and the first to n-th cones,
When the sound is generated, the cone-shaped diaphragm is formed larger than the maximum oscillation width, the compressed surface sound source stereoscopic guide. In the speaker,
Cone-shaped diaphragm having a space portion on one side,
A driver that is coupled to the lower portion of the cone-shaped vibration plate to generate a sound by vibrating the cone-shaped vibration plate,
It is provided inside the cone-shaped diaphragm and compresses the sound generated from the cone-shaped diaphragm, and includes a three-dimensional guide of a surface sound source guiding to the front center of the cone-shaped diaphragm.
The three-dimensional guide sound source,
Cone provided on the front inner side of the cone-shaped diaphragm, the cone-shaped diaphragm spaced a predetermined distance from the front surface;
A first conical ring body having a first fitting hole to which the conical body is fitted and coupled to the center, and provided to the front inner side of the cone-shaped diaphragm in a conical shape;
A second conical ring body and a second conical ring body to which the first conical ring body and the n-1 conical ring body can be fitted are provided in the center, and the second conical ring body to the second conical ring body provided in the front inside of the cone-shaped diaphragm n conical ring body;
A through hole that covers the rest of the cone-shaped diaphragm except for the front center portion, and generates a sound generated by the cone-shaped diaphragm and guided by the conical, first to n-th conical ring bodies from the center of the cone-shaped diaphragm to the surface sound source. Cover member for providing a central portion;
The conical body and the first to n-1 conical ring bodies are respectively coupled to the inner surfaces of the first to nth fitting holes of the first to nth conical ring bodies, and the nth conical ring bodies are inside the through hole of the cover member. To be coupled to, but comprises a fastening means for spaced apart and coupled to the inner surface of each fitting hole and through hole, the speaker. The method of claim 6,
The conical body, the first to n-th conical ring body, is provided between each of the cover member,
It includes a sound guide passage to generate the sound generated from the cone-shaped vibration plate through the through hole of the cover member,
The sound guide passage,
When the three-dimensional guide of the surface sound source is used for the woofer, each width is uniformly formed,
When the three-dimensional guide of the surface sound source is used in a speaker for a high-pitched sound, each width can be formed inconsistently. In the speaker,
Cone-shaped diaphragm having a space portion on one side,
A driver that is coupled to the lower portion of the cone-shaped vibration plate to generate a sound by vibrating the cone-shaped vibration plate,
A surface sound source three-dimensional guide provided inside the cone-shaped diaphragm and compressing the sound generated by the cone-shaped diaphragm to guide it to the front center of the cone-shaped diaphragm;
A surface sound source direction guide coupled to the front of the surface sound source stereoscopic guide to guide the surface sound source coming out through the surface sound source stereoscopic guide to be radiated to a specific area within a certain angle in a specific direction;
Comprising, speakers. The method of claim 8,
The three-dimensional guide sound source,
Cone provided on the front inner side of the cone-shaped diaphragm, the cone-shaped diaphragm spaced a predetermined distance from the front surface;
A first conical ring body having a first fitting hole to which the conical body is fitted and coupled to the center, and provided to the front inner side of the cone-shaped diaphragm in a conical shape;
A second conical ring body and a second conical ring body to which the first conical ring body and the n-1 conical ring body can be fitted are provided in the center, and the second conical ring body to the second conical ring body provided in the front inside of the cone-shaped diaphragm n conical ring body;
A through hole that covers the rest of the cone-shaped diaphragm except for the front center portion, and generates a sound generated by the cone-shaped diaphragm and guided by the conical, first to n-th conical ring bodies from the center of the cone-shaped diaphragm to the surface sound source. Cover member for providing a central portion;
The conical body and the first to n-1 conical ring bodies are respectively coupled to the inner surfaces of the first to nth fitting holes of the first to nth conical ring bodies, and the nth conical ring bodies are inside the through hole of the cover member. To be coupled to, but comprises a fastening means for spaced apart and coupled to the inner surface of each fitting hole and through hole, the speaker. The method of claim 8,
The plane sound source direction guide,
An outer guide formed in the shape of a circular or elliptical horn (funnel),
Provided inside the circular or elliptical outer guide, the lower portion has a lower inclined surface corresponding to the inner surface of the circular or elliptical outer guide so as to provide a guide groove that is a passage through which the sound is transmitted with the inner surface of the circular or elliptical horn, A first upper and lower cone formed in a rhombus shape and having an upper inclined surface of the same size as the lower inclined surface,
Each of the circular or elliptical outer guides has a lower inclined surface provided separately from the upper inclined surface in a vertical direction on the inner inclined surface of the first upper and lower cones, and the cross-section is formed in a rhombus shape and has the same size as the lower inclined surface. Ring-shaped second to nth up and down cones having an upper inclined surface,
Lower inclined surfaces of the second to nth up and down cones, respectively, on the upper inclined surfaces of the first to n-1 up and down cones, respectively, while combining the lower inclined surfaces of the first to nth up and down cones on the inner surface of the circular or elliptical outer guide. And fastening means for combining each,
It is coupled to the apex of the first to n-th upper and lower cones, and is constituted in a direction orthogonal to the negative traveling direction (horizontal direction), but horizontal members having a plurality of voids without absorbing sound; ,
The space between the inner surface of the circular or elliptical outer guide and the lower inclined surface of the first to nth up and down cones and the upper inclined surface of the first to n-1 up and down cones and the lower inclined surface of the second to nth up and down cones A speaker that provides a passage through which sound can be transmitted to the space. A first upper member having a lower inclined surface and a cross section formed in an inverted triangular shape,
A cross section is formed in a triangular shape so as to have an upper inner inclined surface corresponding to a lower inclined surface of the first upper member and a groove portion accommodating the first upper member, and having a top outer inclined surface, and having a through hole in the center. A first lower member provided,
The center has a first through-hole through an n-1 through-hole through which the upper end of the first upper member and the upper end of the n-1 upper member are fitted, and a lower portion of the first through n-1 lower members. Ring-shaped second upper member to n-th upper member having a lower outer inclined surface while having a lower inner inclined surface corresponding to the upper outer inclined surface;
The center has a first through-hole to an n-1 through-hole through which the lower end of the first lower member and the lower end of the n-1 lower member are fitted in a central portion, and a lower outer side of the second to n-th upper members on the upper portion. A ring-shaped second lower member to an n lower member having an upper outer inclined surface while having an upper inner inclined surface corresponding to the inclined surface;
A coupling member for coupling the first to nth upper members and the first to nth lower members, respectively;
It is provided between the lower inclined surface of the first to n-th upper members and the upper inclined surface of the first to n-th lower members, and the sound generated from the plate-shaped diaphragm is generated as a surface sound source outside the first to n-th upper members. A sound guide passage guiding as much as possible;
Containing, including three-dimensional guide sound source. In the speaker,
The plate-shaped diaphragm in which the upper and lower surfaces are formed flat in a circular shape,
A driver for a speaker coupled to a lower surface of the diaphragm to vibrate the plate-shaped diaphragm;
It is provided on the upper portion of the diaphragm, by compressing the sound generated from the diaphragm at least one or more surface sound source three-dimensional guide for guiding a surface sound source is generated in front of the diaphragm;
A cylindrical case accommodating the speaker driver and the diaphragm;
And an edge connecting the vibration plate so as to flow with respect to the case while connecting the edge of the plate-shaped vibration plate and the edge of the three-dimensional guide of the surface sound source. The method of claim 12,
The three-dimensional guide sound source,
When configuring a plurality, it is configured to form a plurality of layers overlapping each other,
A speaker that turns up a three-dimensional guide of a plane sound source forming an odd layer and a three-dimensional guide of a plane sound source forming an even layer. The method of claim 13,
The three-dimensional guide sound source,
A first upper member having a lower inclined surface and a cross section formed in an inverted triangular shape,
A groove portion for receiving the first upper member is provided at the center, and a cross section is formed in a triangular shape to have an upper outer inclined surface while having an upper inner inclined surface corresponding to a lower inclined surface of the first upper member, and a through hole in the center A first lower member,
The center has a first through-hole through an n-1 through-hole through which the upper end of the first upper member and the upper end of the n-1 upper member are fitted, and a lower portion of the first through n-1 lower members. Ring-shaped second upper member to n-th upper member having a lower outer inclined surface while having a lower inner inclined surface corresponding to the upper outer inclined surface;
The center has a first through-hole to an n-1 through-hole through which the lower end of the first lower member and the lower end of the n-1 lower member are fitted in a central portion, and a lower outer side of the second to n-th upper members on the upper portion. A ring-shaped second lower member to an n lower member having an upper outer inclined surface while having an upper inner inclined surface corresponding to the inclined surface;
A coupling unit for coupling the first to nth upper members and the first to nth lower members, respectively;
It is provided between the lower inclined surface of the first to n-th upper members and the upper inclined surface of the first to n-th lower members, and the sound generated from the flat plate diaphragm is a surface sound source from the outside of the first to n-th upper members. A sound guide passage guiding to be generated;
Comprising, speakers. It is arranged in front of the plate-shaped diaphragm, the cross section is formed of a columnar member in an inverted triangle, has lower inclined surfaces on both sides of the lower part, and is composed of a plurality of spaced apart sides on both sides in the longitudinal direction, thereby providing multiple A first guide member forming a receiving groove,
Is coupled to the lower portion of the first guide member, it is composed of a plurality to be accommodated in the plurality of receiving grooves, the cross section is formed in a columnar shape of the triangle is spaced apart on both sides in the longitudinal direction, corresponding to the lower inclined surface on both sides of the upper And a second guide member having an upper inclined surface,
A coupling member connecting the lower inclined surface of the first guide member and the upper inclined surface of the second guide member facing each other, and being spaced apart from each other and coupled;
A sound guide that is formed between the lower inclined surface of the first guide member and the upper inclined surface of the second guide member to be guided by the coupling member to guide the sound generated from the plate-shaped vibration plate. Passage;
Containing, including three-dimensional guide sound source. The method of claim 15,
The coupling member,
Coupling protrusions formed on any one of the lower inclined surface of the first guide member and the upper inclined surface of the second guide member,
The coupling sound source is formed on the other member is not formed with the coupling projection; comprising a, three-dimensional guide surface sound source. In the speaker,
A plate-shaped diaphragm in which the upper and lower surfaces are formed in a square shape,
A driver for a speaker coupled to a lower surface of the diaphragm to vibrate the plate-shaped diaphragm;
It is provided on the upper portion of the diaphragm, compressing the sound generated from the diaphragm to guide at least one surface sound source three-dimensional guide to generate a surface sound source in front of the diaphragm;
A case accommodating the speaker driver and the diaphragm, and combining the three-dimensional guide of the surface sound source;
An edge supporting the vibration plate to vibrate with respect to the case while connecting the edge of the plate-shaped vibration plate and the edge of the three-dimensional guide of the surface sound source;
Comprising, speakers. The method of claim 17,
The three-dimensional guide sound source,
It is disposed in front of the plate-shaped diaphragm, and the cross section is formed of a columnar member in an inverted triangle, has lower inclined surfaces on both sides of the lower part, and is composed of a plurality of spaced apart sides on both sides in the longitudinal direction, thereby providing multiple A first guide member forming a receiving groove,
Is coupled to the lower portion of the first guide member, it is composed of a plurality to be accommodated in the plurality of receiving grooves, the cross section is formed in a columnar shape of the triangle is spaced apart on both sides in the longitudinal direction, corresponding to the lower inclined surface on both sides of the upper And a second guide member having an upper inclined surface,
A coupling member connecting the lower inclined surface of the first guide member and the upper inclined surface of the second guide member facing each other, and being spaced apart from each other and coupled;
A sound guide that is formed between the lower inclined surface of the first guide member and the upper inclined surface of the second guide member to be guided by the coupling member to guide the sound generated from the plate-shaped vibration plate. Passage;
Comprising, speakers. The method of claim 17,
The three-dimensional guide sound source,
A plurality of circular or polygonal holes are formed spaced apart from each other in the longitudinal direction and the width direction, and composed of a circular or polygonal shape of a flat plate-shaped member, a speaker. The method of claim 17,
A speaker configured to further include an acoustically variable unit that is rotatably coupled to the front edge of the three-dimensional guide of the surface sound source so as to be able to diffuse sound emitted from the front of the three-dimensional guide. The method of claim 20,
The acoustic variable unit,
A plurality of variable panels rotatably coupled to the outside from the front edge of the three-dimensional guide of the surface sound source,
An angle setting unit capable of setting a rotation angle of the variable panel to maintain the rotated angles of the plurality of variable panels;
Comprising, speakers. The method of claim 21,
The angle setting unit,
A plurality of coupling protrusions respectively formed at the front ends of the plurality of variable panels toward the front of the speaker,
Consisting of a plurality, each one end is respectively connected to the plurality of coupling protrusions, and each other end is a plurality of connecting members disposed toward the center of the front surface of the three-dimensional guide surface sound source,
A bridge disposed at the center of the front surface of the three-dimensional guide of the surface sound source to connect the other ends of the plurality of connecting members;
By connecting a bridge and a connecting member of the plurality of connecting members
Comprising, speakers.

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