JP2014074909A - Sound device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound device capable of loudly amplifying a sound outputted from a sound source as it is, without requiring components, such as an electrical circuit and a mechanical vibration member, and any power supply.SOLUTION: A sound box connection body 120 arranges sound box small bodies 110(1)-110(9) including a sound box housing, a sound entrance and a sound exit in multiple stages and is successively connected in a row of the sound box small bodies so that the sound entrance of the sound box small bodies in a stage is connected to the sound exit of the sound box small bodies in the front stage and the sound exit of the sound box small bodies in the stage is connected to the sound entrance of the sound box small bodies in the subsequent stage; provides an external sound source opening 130 in the sound entrance of the sound box small body 110(1) in the first stage of the sound box connection body 120; includes a loudspeaker opening 140 in the sound exit of the sound box small body 110(9) in the final stage of the sound box connection body 120; and has a structure in which sizes of the sound box small bodies and cross sections of connected portions are gradually increased.

Description

  The present invention relates to an acoustic device that makes a sound emitted from a sound source resonate through an acoustic space combined with a housing without using an electric circuit or a mechanical vibration system.

Physically speaking, sound is a wave (dense wave) that propagates through a medium such as air or water, and is perceived by stimulating the hearing of the listener.
A conventional speaker device transmits an electric signal to a diaphragm via an electric system circuit, causes mechanical vibration to the diaphragm via an electromagnetic vibrator, and propagates in the air as a dense wave of air. Thus, the conventional speaker device requires electrical energy in order to operate, and requires electrical signal processing and electronic components such as an electromagnetic vibrator and a diaphragm.
In general, the speaker part is attached with a drive unit consisting of a coil, permanent magnet, etc. on the back side of a cone-shaped diaphragm, and an electric signal is supplied to the coil to cause the drive part to reciprocate. It is a mechanism that emits sound by vibrating the plate.

Since the above conventional speaker vibrates the diaphragm by the reciprocating motion generated in the drive unit, the direction of the reciprocating motion generated by the coil or the permanent magnet, the vibration direction of the diaphragm and the sound are tried to be emitted. The driving direction and the diaphragm are brought close to each other, and it is considered to ensure the reliable transmission of kinetic energy. For this reason, in general, the drive unit is attached in close contact with the back surface of the diaphragm to form an integral structure.
Various researches and developments related to speakers have been made, and all of them are based on this mechanism.

  A speaker device formed by a non-electric member such as paper is known by changing the configuration of such a conventional speaker to reduce the number of electronic components and mechanical components around a so-called speaker diaphragm (patent) Reference 1).

  FIG. 19 is a diagram showing a speaker device disclosed in Patent Document 1 in the prior art. As shown in FIG. 19, the conventional speaker device disclosed in Patent Document 1 supports a diaphragm, a drive unit that generates a force corresponding to the sound to be generated, and the diaphragm in a state having an internal stress. And a support transmission means for transmitting the wave generated by the force generated by the drive unit to the diaphragm.

JP 2000-350285 A

In recent years, portable music player devices have become popular, and portable communication terminals with a telephone function called smartphones have also become popular, and both can enjoy music. Although these conventional portable music player devices and portable communication terminals can enjoy music, the listening style is generally through earphones. Note that these conventional portable music player devices and portable communication terminals also have external speakers and can output music to the outside.
However, although conventional portable music player devices and portable communication terminals have external speakers, they are small in order to prioritize portability, and it is difficult to output a large volume of sound.

  Therefore, a conventional portable music player device or a portable communication terminal is provided with a jack terminal for electrically outputting music as music data, and this jack terminal is connected to a signal input terminal of the speaker device via a cable. It was connected to input an electrical signal of music data and output it as a large sound by a so-called conventional speaker device. Conventional speakers have a structure that converts electrical signals into mechanical vibrations and converts them into mechanical movements of the speakers as described above. Are combined to generate sound.

However, this is not a conventional portable music player device or portable communication terminal that amplifies the sound emitted from an external speaker and outputs it as a large sound. It was output as mere electric signal music data without being emitted as sound from the device or portable communication terminal.
In addition, as described above, when sound is output using a conventional speaker device, it is necessary to connect the jack terminal to the signal input terminal of the speaker device via a cable.
In addition to the power supply equipment, a conventional speaker device must be prepared. In addition, the conventional speaker device is connected by cables, etc., and cannot be moved easily. A place is also needed.

  The present invention has been made in view of various problems caused by the configuration of the above-described conventional speaker, and does not require any parts such as an electric circuit or a mechanical vibration member, or any power source. Sound that is output from external speakers of portable music player devices and portable communication terminals and causes further resonance and vibration inside, changing the sound quality from the entire box to rich sounds like an instrument It is an object of the present invention to provide an audio device capable of obtaining an effect.

In order to achieve the above object, the acoustic device of the present invention is provided with a plurality of acoustic box bodies having acoustic inlets and acoustic outlets provided in a part of a wall surface of the acoustic box housing and its wall surface, The acoustic inlet of the acoustic box body is connected to the acoustic outlet of the preceding acoustic box body, and the acoustic outlet of the acoustic box body of the current stage is connected to the acoustic inlet of the subsequent acoustic box body. The connected acoustic box connection body, the external sound source opening for installing an external sound source with respect to the acoustic entrance of the first acoustic box body of the acoustic box connection body, and the last acoustic box box of the acoustic box connection body A speaker opening that receives sound from the sound outlet of the body and outputs the sound to the outside, arranged so that the size of the acoustic box body gradually increases in the acoustic box connecting body, and installed in the external sound source opening The sound of the external sound source is amplified by the acoustic box connector, and the An acoustic device for outputting the manufacturers opening.
The acoustic device according to the present invention intentionally devise the shape, size, opening, etc. of the partition plate by connecting the acoustic box body with the partition plate or opening to the sound obtained from the external sound source. In this way, the acoustic device can produce a sound effect of causing resonance and vibration inside the acoustic box connecting body to change the sound quality from the entire box to rich sounds like an instrument.

  Here, the external sound source opening is shaped so that a mobile communication terminal with a speaker can be inserted, and when the mobile communication terminal with a speaker is inserted, the speaker faces the acoustic entrance of the first acoustic box body of the acoustic box concatenation body. If it becomes the structure which becomes, it is only necessary to insert into the external sound source opening while playing the sound with the external speaker of the portable communication terminal with a speaker.

In addition, in the communication of the acoustic box body of the acoustic box connecting body having the above-described configuration, a cross-sectional area of a connecting portion between the acoustic outlet at the front stage and the acoustic inlet at the rear stage is gradually increased, and the sound is transmitted in the process of propagation. Adjust to be amplified.
Further, in the acoustic box connecting body configured as described above, by connecting the acoustic box bodies not in a linear direction but in a bent direction, the volume of the acoustic box connecting body is reduced, and the acoustic box connecting body It is preferable to ensure a long distance in the acoustic box connecting body communicating from the first stage to the last stage.
By ensuring a long distance within the acoustic box concatenation body, the depth and extension of the bass are born, the sound quality is improved, and an excellent acoustic effect can be obtained.
If the distance in the acoustic box joint becomes too long, the sound will diffuse too much and the effect of sound attenuation will increase, so it is necessary to design the distance in the acoustic box joint corresponding to the volume of the sound source. .

  Next, inside the acoustic box connecting body, a reflection surface is used in which the position and angle of the wall surface of the acoustic box body of the acoustic box body are adjusted so that the acoustic wave is easily propagated to the next stage. Preferably, the light is reflected and guided to the speaker opening.

Here, in the connection of the acoustic box bodies of the acoustic box connecting body, the acoustic box bodies may share a part of the wall surface and the internal space.
Further, in the above-mentioned acoustic box connecting body, three or more acoustic box bodies are connected, and by providing a plurality of reflecting surfaces for reflecting the sound, the reflected sound reflected by each reflecting surface is provided. It is preferable to superimpose a plurality of leads to the speaker opening.
In this way, the position and angle of the wall surface of the acoustic box housing are folded back in various ways, so that the depth and extension are born from low to high, and a wonderful acoustic effect can be obtained.

Furthermore, it is also possible to provide a housing angle adjusting body that adjusts the installation angle of the acoustic box connecting body as a constituent member. The housing angle adjuster is, for example, a wedge-shaped plate having an inclination angle. The inclination angle of the entire acoustic box connecting body is adjusted by sandwiching the housing angle adjusting body below the acoustic box connecting body, and the portable communication terminal is placed on the acoustic device in a stable state with respect to the acoustic device. Can stand up. If this casing angle adjusting body itself is also a casing, the vibration in this internal space can be used as a space for changing the sound quality.
In addition, regarding the way of placing, it is possible to adjust the standing angle by the above-mentioned housing angle adjusting body, and the whole housing can be placed vertically on a plane such as a desk, placed horizontally, or upside down. It goes without saying that it can be placed on the back or so-called on its back, and its posture can be freely set. It is also possible to hang it on the wall with something like a hook.

Next, a device for changing the sound quality will be described.
For example, there is a device for providing a hole in a part of the wall surface of the acoustic box housing. The front side of the acoustic box housing has a portion that also serves as a wall that closes the front of the acoustic box body that is a significant part of the internal acoustic box connecting body. For example, by providing a hole in the front of the acoustic box housing, etc. In addition to the sound conducted through the acoustic box connecting body, the sound leaking from this hole is output to the outside. As described above, the sound output to the outside is not only a normal speaker opening but also a plurality of places, and the sound quality felt by the user may change.

  In addition, for example, in addition to the sound propagating through the acoustic inlet and the acoustic outlet at the communication portion between the acoustic box bodies, a hole is provided in a part of the partition plate that separates the acoustic box bodies of the acoustic box joint body. In addition, it is possible to adopt a structure in which sound that propagates through the hole is generated. As a result, there is a possibility that the sound quality felt by the user changes.

Next, the material of the acoustic device of the present invention will be described. The material of the acoustic device is not particularly limited as long as it enhances the acoustic effect.
For example, there are various types such as those in which the wall surface of the acoustic box casing of the acoustic box connecting body is formed of wood, and those in which the wall surface of the acoustic box casing of the acoustic box connecting body is formed of glass.
Furthermore, it is also possible to manufacture using various materials such as metal plates, ceramics, porcelain, Japanese paper, non-woven fabrics, acrylic plates. There are variations in the sound of the sound according to each material, and each has its taste. In any case, it can be expected that a rich and wonderful acoustic effect can be obtained if the acoustic device of the present invention is provided with the basic structure.

Next, the device for the input music will be described.
The acoustic device of the present invention can produce a richer and richer sound than the original sound, regardless of the state of the input sound. There is "acoustic characteristics" of the device. If music with adjusted sound effects is used as an external sound source so that the “acoustic characteristics” of the acoustic apparatus of the present invention can be easily utilized, the acoustic effect of the acoustic apparatus of the present invention is likely to be improved. Therefore, for example, it is preferable to process the sound of the external sound source in advance by an application that adjusts the sound effect.

  As the configuration, an acoustic characteristic data holding unit for holding acoustic characteristic data of the output acoustic and an acoustic characteristic data holding unit are accessed in the portable communication terminal or on a network accessible by the portable communication terminal. A digital equalizer application that adjusts the effect of the sound of the sound output from the mobile communication terminal according to the acoustic characteristic data, and before the user outputs the desired music from the mobile phone, the digital equalizer It is only necessary to prepare a sound whose sound effect has been adjusted using an application and use the sound whose sound effect has been adjusted as an external sound source.

If it is the acoustic device shown above, without any electrical processing, the sound input to the first stage acoustic box body is acoustically resonated and output from the acoustic box joint body, Since the acoustic device of the present invention itself transmits air vibration by resonating the acoustic space inside the acoustic device like a kind of musical instrument, it is possible to obtain a wonderful acoustic effect that is rich in tone and stretched.
If the sound effect is adjusted in advance according to the sound characteristic data of the sound device of the present invention for the sound of the external sound source, a more excellent sound effect can be obtained.

The acoustic device of the present invention intentionally devise the shape, size, opening, etc. of the partition plate of the acoustic box connecting body for the sound obtained from the external sound source, and resonate and vibrate inside the acoustic box connecting body. The sound effect of changing the sound quality from the entire box to a rich sound like an instrument can be obtained.
According to the acoustic device of the present invention, the sound input to the first acoustic box body is acoustically resonated and output from the acoustic box joint without any electrical processing. Since the acoustic device of the present invention transmits air vibrations by resonating the acoustic space inside the acoustic device like a kind of musical instrument, it is possible to obtain a wonderful acoustic effect that is rich in tone and stretched.

  Hereinafter, embodiments of the acoustic device of the present invention will be described with reference to the drawings. However, it goes without saying that the scope of the present invention is not limited to the specific application, shape, number, etc. shown in the following examples.

A configuration example of the acoustic device 100 shown in the first embodiment will be described. Here, the configuration example of the acoustic device 100 shown in the first embodiment is referred to as a type 1 configuration.
A configuration example is given as Example 1, but it is only an example, and intentionally causes resonance and vibration inside the acoustic box concatenation, and changes the sound quality from the entire box to a rich sound like an instrument. Any other configuration may be used as long as it obtains a sound effect.

FIG. 1 is a perspective view illustrating an appearance of the acoustic device 100 according to the first embodiment, and FIG. 2 is a cross-sectional view of the internal structure of the acoustic device 100 as viewed from the side. FIG. 3 is an enlarged view of a part of FIG. 2 in order to easily show the connection of the acoustic box bodies.
The acoustic device 100 includes an acoustic box body 110, an acoustic box connecting body 120 in which the acoustic box bodies are connected in multiple stages, an external sound source opening 130, and a speaker opening 140. As shown in FIG. 1, the type 1 acoustic device 100 is a vertical casing as a whole, the acoustic box connecting body 120 is provided vertically, the external sound source opening 130 is positioned below, A speaker opening 140 is provided on the front surface, and further includes a front plate body 150 that covers the front surface of the acoustic box body 110 and that serves as an external sound source holder for installing a smartphone or the like on the front surface. Further, as shown in FIG. 2, a plurality of acoustic box bodies 110 are connected inside the acoustic box connecting body 120.

Hereinafter, the structure of each part of the acoustic device 100 shown in the first embodiment will be described.
First, the external sound source opening 130 is an opening for installing the external sound source 200 with respect to the acoustic inlet 112 of the first acoustic box body 110 of the acoustic box connecting body 120. It is preferable that the external sound source 200 has a shape that can easily be accommodated, and is arranged in a size and a direction so that sound emitted from the speaker 210 of the external sound source 200 can be easily received.

  The speaker opening 140 is an opening for receiving sound from the sound outlet 113 of the acoustic box body 110 at the final stage of the acoustic box connecting body 120 and outputting the sound to the outside. It is preferable that the sound sensor is disposed on the front surface so that the sound is easily distributed to the user.

  The front plate 150 is a plate for closing the front surface of the acoustic box body 110 at each stage of the acoustic connecting body 120 and using the acoustic box body at each stage as a box. The front surface of the front plate 150 can be a part for accommodating a mobile communication terminal having an external speaker such as a smartphone, and can have various designs.

Next, the acoustic box body 110 is one small box that serves as a unit for reverberating sound, and includes an acoustic box housing 111, an acoustic inlet 112, and an acoustic outlet 113. In the example illustrated in FIG. 2, nine acoustic box bodies 110 are connected from the acoustic box body 110 (1) to the acoustic box body 110 (9).
FIG. 3 is an enlarged view of a part of FIG. 2 for easy understanding of the connection of the acoustic box bodies 110. As shown in FIG. 3, each acoustic box body 110 has an acoustic box housing. 111, an acoustic inlet 112, and an acoustic outlet 113. Note that the area is indicated by a bold line so that the presence and position of the acoustic inlet 112 and the acoustic outlet 113 can be easily understood. Actually, the position of the thick line is a path through which sound propagates in space.

The acoustic box casing 111 is formed of a sealed wall surface, and is formed of a material that easily emits sound, such as wood or glass. An acoustic inlet 112 and an acoustic outlet 113 are provided on a part of the wall surface of the acoustic box casing 111. Note that, as will be described later, the acoustic box casing 111 of the acoustic box body 110 also serves as the partition plate 121 inside the acoustic connecting body 120.
In addition, it is also possible to manufacture using various materials, such as a metal plate, earthenware, porcelain, Japanese paper, a nonwoven fabric, and an acrylic board. There are variations in the sound of the sound according to each material, and each has its taste. In any case, it can be expected that a rich and wonderful acoustic effect can be obtained if the acoustic device of the present invention is provided with the basic structure.

  The acoustic inlet 112 is an opening through which sound enters from the preceding acoustic box body 110 and is connected to the acoustic outlet 113 of the preceding acoustic box body 110. The position where the acoustic entrance 112 is provided is provided on the side close to the external sound source opening 130 (the side far from the speaker opening 140) in the internal space that is the acoustic path of the acoustic box body 110.

The acoustic outlet 113 is an opening that emits sound to the subsequent acoustic box body 110 and is connected to the acoustic inlet 112 of the subsequent acoustic box body 110. As shown in FIG. 1, the position where the acoustic outlet 113 is provided is provided on the side closer to the speaker opening 140 (on the side far from the external sound source opening 130) in the internal space that is the acoustic path of the acoustic box body 110. It has been.
The acoustic box connecting body 120 is thus a connecting body in which a plurality of acoustic box bodies 110 are connected in multiple stages.

Each acoustic box body 110 of the acoustic box connecting body 120 may be connected by connecting independent housings, or is configured by partitioning the interior of a large space with a wall surface as shown in FIG. There may be. Each internal space partitioned by these wall surfaces becomes the acoustic box body 110.
As described above, the acoustic box connecting body 120 communicates with the internal space, and when the sound passes through the internal space of the acoustic box connecting body 120, the reverberation increases and the effect of being amplified as beautiful sound is exhibited. As described above, there is a complicated wall partition 121 inside the acoustic box connecting body 120, and the way of connecting the acoustic box bodies 110 is devised.

FIG. 3 is an enlarged view of a part of the configuration shown in FIG. 2 so that it can be easily understood that the acoustic boxes are arranged so that their sizes gradually increase in the arrangement of the acoustic box bodies 110 of the acoustic box connecting body 120. FIG. It is the figure enclosed with the frame for every acoustic box body 110 so that the mode of the connection of the acoustic box body 110 in the acoustic connection body 120 may be understood easily.
In the connection of the four acoustic box bodies 110 (1), the acoustic box body 110 (2), the acoustic box body 110 (3), and the acoustic box body 110 (4) shown in FIG. When attention is paid to 110 (2), the acoustic inlet 112 (2) is connected to the acoustic outlet 113 (1) of the acoustic box body 110 (1) in the preceding stage, and the acoustic outlet of the acoustic box body 110 (2). 113 (2) is connected to the acoustic inlet 112 (3) of the acoustic box body 110 (3) at the subsequent stage. In the acoustic box body 110 (2), the sectional area of the acoustic outlet 113 (2) is larger than the sectional area of the acoustic inlet 112 (2).

When this is generalized, the acoustic outlet 113 (n) at the current stage and the acoustic inlet 112 (n + 1) at the rear stage are calculated from the area Sn where the acoustic outlet 113 (n-1) at the front stage is in contact with the acoustic inlet 112 (n) at the current stage. The area S (n + 1) in contact with each other is gradually increased. In the arrangement of the acoustic box bodies 110 of the acoustic box connecting body 120, the acoustic box bodies 110 are not arranged in a straight line but are arranged to be bent, but the acoustic box bodies 110 (n−1) in the preceding stage are arranged. ) And the acoustic box body 110 (n) of the current stage and the acoustic box body 110 (n + 1) of the next stage are successively increased in area S.
In the connection of the acoustic box bodies 110 of the acoustic box connection body 120, the acoustic box bodies 110 may share a part of the wall surface and the internal space. In the example of FIG. 2, it can be said that the acoustic box body 110 (4) and the acoustic box body 110 (5) share the wall surface and the internal space depending on the way of viewing. This is because there are various patterns in the shape, arrangement, connection method, and the like of the acoustic box body 110, and there may be a case where the space separation between the previous acoustic box body and the next acoustic box body is not clear. . As a whole, if the connection area S of the joints of the acoustic box bodies keeps a tendency to increase in order, the effect that the sound quality is expanded and the sound quality is changed can be obtained.

Here, an explanation will be given of the principle that the sound quality is improved by sound.
FIG. 4A is a diagram simply showing the acoustic model of the present invention. This is the same as the principle of a so-called megaphone, and is common to the shape of a cone type speaker. For comparison, FIG. 4B shows a state in which the sound from the sound source simply diffuses in all directions in a spherical shape.

First, as shown in FIG. 4B, the sound emitted from the external sound source 200 propagates in the air as a medium while diffusing in a three-dimensional manner in a non-directional manner. That is, the acoustic energy propagates while spreading in a spherical shape. The area Sr of the spherical surface is expressed by [Expression 1] where r is the distance.
[Equation 1]
Sr = 4πr2
That is, it decreases in inverse proportion to 4πr2. Thus, general sound diffuses as shown in FIG.
On the other hand, FIG. 4A shows a case where the sound diffuses only in a certain direction as in the principle of the megaphone or the cone type speaker, but the sound emitted from the external sound source 200 is a medium. It propagates in the air while being three-dimensionally diffused at a predetermined ratio only in the forward direction. That is, the acoustic energy propagates while spreading to the bottom surface of the cone (in this example, a curved surface obtained by cutting a part of the spherical surface with a predetermined opening angle). The area Sc is expressed by [Expression 2] where r is the distance and θ is the opening angle.
[Equation 2]
Sr≈πr2 (1-cos (θ / 2))
That is, it decreases in inverse proportion to πr2 (1-cos (θ / 2)). Thus, the sound of the acoustic model of the present invention diffuses as shown in FIG.
Although depending on the size of the opening angle θ, the non-directionally radiated sound as shown in FIG. 4B is concentrated and emitted only in a specific direction as shown in FIG. Therefore, when the user stands in the specific direction, it can be heard as sound that reverberates greatly compared to the general sound in FIG.

Here, the opening angle θ will be examined. As seen above, it can be said that the propagating sound tends to concentrate when the aperture angle θ is reduced, but conversely, an acoustic model whose area gradually narrows causes the following problems.
First, if the direction of sound radiation is too narrow, the direction in which the sound propagates becomes narrow, and if the user has a certain range of activity such as in a room, the range that is difficult to listen to increases. May occur.
Second, if the sound radiation direction is too narrow, there is a possibility that the reverberant sound that reaches the user from the surroundings of the room will be small and the balance will be poor. There are sound that directly reaches the user from the speaker opening 140 and reverberation sound that reaches from the wall surface, ceiling, or floor surface of the room, and the sound that resonates abundantly often sounds larger and beautifully heard. When the sound is radiated from the speaker opening 140 to a wide space such as a room, the sound gradually diffuses in the peripheral direction. However, if the direction of the sound output from the speaker opening 140 is narrowed, the speaker opening 140 The sound that diffuses from the surroundings to the surroundings is reduced, the reverberation sound that reaches from the wall, ceiling, and floor of the room is small, only the sound that directly reaches the user is strong, but the reverberation sound is not obtained, the sound can be heard small for the user There are many cases.
Therefore, the acoustic device 100 of the present invention is arranged so that the area of the joint between the acoustic box body 110 and the acoustic box body 110 is increased in order, and the external sound source installed in the external sound source opening 130. 200 sound is input, amplified through the acoustic box connecting body 120, and output from the speaker opening 140 as sound having a large and rich sound.

FIG. 5 is a diagram showing the arrangement of the acoustic box bodies 110 of the acoustic device 100 of the present invention shown in FIG. 1 rearranged in the linear direction. As shown in FIG. 5, in the arrangement of the acoustic box bodies 110 of the acoustic device 100 of the present invention shown in FIG. 1, the area of the joints between the acoustic box bodies 110 and the acoustic box bodies 110 increases sequentially. It can be seen that there is a relationship as shown in FIG.
If the distance in the acoustic box joint becomes too long, the sound will diffuse too much and the effect of sound attenuation will increase, so it is necessary to design the distance in the acoustic box joint corresponding to the volume of the sound source. .

  As described above, the acoustic device 100 of the present invention outputs the sound input from the acoustic box connecting body by acoustically resonating the sound input to the first acoustic box body without any electrical processing. Because the acoustic device of the present invention itself transmits the air vibration by reverberating the acoustic space inside the acoustic device like a kind of musical instrument, the tone is rich and stretched, the sound quality is improved, and the sound reverberates An acoustic effect can be obtained.

Next, another configuration example of the acoustic device 100 is shown.
FIG. 6 is a diagram illustrating another configuration example of the acoustic device 100 belonging to Type 1. In FIG.
The configuration example of the acoustic device 100 illustrated in FIG. 1 is a configuration in which nine acoustic box bodies 110 are connected, but the configuration example of the acoustic device 100a illustrated in FIG. Ten pieces are connected from 110a (1) to the acoustic box body 110a (10). As the connection of the acoustic box bodies 110a increases, the overall size becomes a little larger, and the joint area between the acoustic box bodies 110a gradually increases. As shown in FIG. 4, the megaphone effect is used to amplify the sound. Can be obtained.

FIG. 7 is a diagram showing the acoustic box body 110a surrounded by a frame so that the state of the connection from the acoustic box body 110a (1) to the acoustic box body 110a (11) in the acoustic connecting body 120a can be easily understood. is there. As shown in FIG. 7, it can be clearly seen that the acoustic box body 110a (1) to the acoustic box body 110a (11) are gradually increased in size.
As described above, various configurations and arrangements of the connection of the acoustic box bodies 110 in the acoustic connection body 120 are possible.
In this way, for the sound obtained from the external sound source, the shape, size, opening, etc. of the partition box of the acoustic box connecting body are intentionally devised to cause resonance and vibration inside the acoustic box connecting body. Thus, it is possible to obtain an acoustic effect of changing the sound quality from the entire box to a rich sound as if it were a musical instrument.

Although the basic structure of the acoustic device 100 of the present invention is as shown in the first embodiment, the acoustic box connecting body 120 of the acoustic device 100 of the present invention has an acoustic structure of the acoustic box bodies 110 in a linear direction. In addition to reducing the volume of the acoustic box connecting body 120 by connecting in the bent direction, the distance between the internal spaces in the acoustic box connecting body 120 communicating from the first stage to the last stage of the acoustic box connecting body 120 is ensured to be long. There can be a variety of patterns in the internal structure for damaging. As a second embodiment, some specific configuration examples will be described.
For the sake of convenience, the type shown in the first embodiment is referred to as type 1, and in the second embodiment, types 2 and 3 are shown as other types.

  In each configuration example, a part of the wall surface of the acoustic box casing 111 of the acoustic box body 110 inside the acoustic box connecting body 120 is a partition plate 121 inside the acoustic box connecting body 120, and the sound is the next. The position and angle are adjusted so as to easily propagate to the stage. Also, in any case, three or more acoustic box bodies 110 are connected, and the partition plate 121 is a reflecting surface that reflects sound, and a plurality of reflected sounds reflected by each reflecting surface are superimposed and rich. It is output as a large sound.

FIG. 8 is a diagram illustrating a configuration example of the acoustic device 100b belonging to type 2. In type 2, the acoustic connecting body 120b is a vertical type, but has a substantially quadrangular pyramid shape. The external sound source opening 130b is provided on the upper surface, and the speaker opening 140b is provided on the lower front surface.
In the configuration example of the acoustic device 100b illustrated in FIG. 8, five acoustic box bodies 110b are connected from the acoustic box body 110b (1) to the acoustic box body 110b (5). The area of the joint between the acoustic box bodies 110b gradually increases, and the megaphone effect can be obtained so as to amplify the sound as shown in FIG.

  FIG. 9 is a diagram showing the acoustic box body 110b surrounded by a frame so that the state of connection from the acoustic box body 110b (1) to the acoustic box body 110b (5) in the acoustic connecting body 120b is easily understood. is there. As shown in FIG. 9, it can be clearly seen that the acoustic box body 110b (1) to the acoustic box body 110b (5) are gradually increased in size.

  FIG. 10 is a diagram illustrating a configuration example of the acoustic device 100c belonging to type 3. The type 3 acoustic connecting member 120c is a horizontal type and has a so-called horizontal structure. The external sound source opening 130c is provided on the front surface, and the speaker opening 140c is provided on the front surface side near the rear. In the configuration example of the acoustic device 100c shown in FIG. 10, six acoustic box bodies 110c are connected from the acoustic box body 110c (1) to the acoustic box body 110c (6). The area of the joint between the acoustic box bodies 110c gradually increases, and the megaphone effect can be obtained so as to amplify the sound as shown in FIG.

  FIG. 11 is a diagram showing the acoustic box body 110c surrounded by a frame so that the state of connection from the acoustic box body 110c (1) to the acoustic box body 110c (6) can be easily understood. is there. As shown in FIG. 11, it can be clearly seen that the acoustic box body 110c (1) to the acoustic box body 110c (6) are arranged so as to gradually increase.

As described above, it can be seen that the acoustic box connecting body 120 of the acoustic device 100 of the present invention can have various patterns for the connection between the acoustic box bodies 110 as its internal structure. In addition to the above pattern, other patterns are possible, and in any pattern, the acoustic box body 110 of the acoustic box joint 120 communicating from the first stage to the last stage of the acoustic box joint 120 gradually increases, Any area may be used as long as the area of the joint between the acoustic box bodies 110a gradually increases.
In this way, for the sound obtained from the external sound source, the shape, size, opening, etc. of the partition box of the acoustic box connecting body are intentionally devised to cause resonance and vibration inside the acoustic box connecting body. Thus, it is possible to obtain an acoustic effect of changing the sound quality from the entire box to a rich sound as if it were a musical instrument.

In the third embodiment, a configuration example including a housing angle adjusting body 160d for adjusting the installation angle of the acoustic box connecting body 120d will be described as the configuration of the acoustic device 100d.
The overall shape of the acoustic device 100d includes a vertical type and a horizontal type. In particular, the vertical type is installed with a slight inclination.

  The reason for using the housing angle adjuster 160d is posture control when a mobile communication terminal such as a smartphone is leaned against the external sound source opening 130d. As a method of using the acoustic device 100d of the present invention, it is assumed that a mobile communication terminal such as a smartphone capable of outputting music or the like is used by leaning on the external sound source opening 130d, but the mobile communication terminal 200 such as a smartphone uses a display operation surface. Is often provided on the front of the device, and music playback operations are often performed through this display operation surface. Therefore, it is necessary to stand up so that the speaker portion of the mobile communication terminal 200 can be accommodated in the external sound source opening 130d while standing so that the display operation surface can be touched. As described above, since the portion of the portable communication terminal 200 that fits in the external sound source opening 130d is a small portion, it may not be said that the device is in a stable state if it is erected vertically. Therefore, the sound device 100d is leaned against the sound device 100d in a stable state by inclining the entire sound device 100d and standing the mobile communication terminal 200 in a slightly laid state.

  FIG. 12 is a diagram illustrating a configuration example of an acoustic device 100d to which a wedge-shaped housing angle adjustment body 160d is applied. With respect to the acoustic device 100d, the portable communication terminal 200 is placed with the wedge-shaped casing angle adjustment body 160d at the bottom and the entire acoustic device 100d inclined obliquely. In this configuration example, the housing angle adjusting body 160d is an independent plate, and the angle of the entire acoustic device 100 is inclined so as to be sandwiched under the acoustic device 100d.

FIG. 13 is a diagram illustrating a configuration example of the acoustic device 100d in which the casing angle adjusting body 160 is integrated with the casing of the acoustic connecting body 120d. In this configuration example, the housing angle adjusting body 160d is integrated with the housing of the acoustic box connecting body 120d, and the housing of the acoustic box connecting body 120d is independent in an oblique manner. When the acoustic device 100d is erected, the angle of the entire acoustic device 100d is naturally inclined.
In this way, by using the housing angle adjuster 160d, posture control when the mobile communication terminal 200 such as a smartphone is leaned against the external sound source opening 130d is performed, and the mobile communication terminal 200 is stably connected to the acoustic device 100d. It can be placed against.

The casing angle adjusting body 160d can be hollowed by assembling the outer shape with a plate.
FIG. 14 is a cross-sectional view of the housing angle adjuster 160d shown in FIG. 13 in which the housing angle adjuster 160d is integrated with the housing of the acoustic connecting body 120d so that the interior is hollow. . Unlike the so-called “skirt”, the entire bottom surface is not provided with a plate, and is composed of only the side plate or the side plate and the front plate. The entire structure is supported by the bottom surface of the front plate. What is illustrated in FIG. 14 is a configuration example including only a side plate, and 160 d does not show hatching, and the inside of the left side surface is visible.

In the configuration example in which the front plate is provided, it is also preferable to appropriately open a hole so that the sound from the cavity inside the housing angle adjuster 160d is output to the front.
In this way, by making the inside of the housing angle adjustment body 160d hollow, the sound of the acoustic device 100d formed in the upper part is also transmitted to the cavity inside the housing angle adjustment body 160d via a plate surface or the like. Since the sound is transmitted and a new sound is generated and is emitted toward the front, the sound reverberates from the lower casing angle adjustment body 160d separately from the original speaker opening 140d at the upper part, and the feeling of overlap increases. Sound quality is improved.

  As a fourth embodiment, a configuration example will be described in which a 151e hole is formed in a part of a wall surface of a sound box housing, and a part of sound of the sound box connecting body 110e is evacuated forward from the hole 151e.

FIG. 15 is a diagram illustrating a configuration example of an acoustic device 100e in which a 151e hole is provided in a part of a front plate 150e which is a part of a wall surface of the acoustic box housing. In FIG. 15, only the front plate 150e is hatched so that the shape of the front plate 150e can be easily understood.
In the example of FIG. 15, a plurality of holes 151e are provided at both ends of the front plate 150e. In addition, since FIG. 15 is a perspective view, the hole 151e at the right end is not visible. Of course, the hole 151e may have only one end of the front plate 150e.

  The front plate 150e is formed with a wall surface so as to block the front surface of the acoustic box body 110e at each stage of the acoustic box connecting body 120e inside, but in this way, a hole 151e is formed in a part of the front plate 150e. If some are provided, a part of the sound is emitted from the front surface to the outside through the hole 151e. That is, in the configuration of the acoustic device 100e of FIG. 15, in the acoustic box connecting body 120e, the front plate body 150e is normally conducted through the acoustic box body 110e and emitted from the original speaker opening 140e. The sound emitted forward from the hole 151e is added, the sound reverberates from a plurality of places, the feeling of overlap is increased, and the sound quality is improved.

  As Example 5, a notch 114f through which cables easily pass is provided in a part of the acoustic box housing 111f of the acoustic device 100f so that the cable 210 for charging the mobile communication terminal 200 such as a smartphone can be easily connected. An example of a devised configuration will be described.

FIG. 16 is a diagram illustrating a configuration example of an acoustic device 100f in which a notch 114f through which cables and the like easily pass is provided in a part of the acoustic box casing 111f. This is a configuration example when the terminal of the mobile communication terminal 200 such as a smartphone is on the left side.
The cutout 114f leans on a portion of the mobile communication terminal 200 such as a smartphone leaning on a portion serving as an external sound source holder, and the terminals on the left side surface of the mobile communication terminal 200 when the mobile communication terminal 200 is inserted into the external sound source opening 130f. It is provided at an opposing position. With the cable 210 attached to the charging terminal of the mobile communication terminal 200, the cable 210 can be pulled out of the acoustic box casing 111f through the notch 114f.

  Providing such a notch 114f provides the advantage that the mobile communication terminal 200 such as a smartphone can be used while the charging device 210 is charged by inserting the charging cable 210 or the like into the terminal. . In general, the mobile communication terminal 200 such as a smartphone is often required to be charged due to the consumption of the rechargeable battery, and the charging time often takes about one hour. Depending on the performance of the mobile communication terminal 200 such as a smartphone, the mobile communication terminal 200 can be used during charging, but the charging cable 210 needs to remain plugged into the terminal. If the charging cable 210 becomes an obstacle and the portable communication terminal 200 cannot be inserted into the external sound source holder of the audio device 100f, the audio device 100f of the present invention cannot be used. Therefore, by providing this notch 114f, the mobile communication terminal 200 such as a smartphone can be used while using the acoustic device 100f of the present invention while charging by inserting the charging cable 210 or the like into the terminal. .

  As Example 6, a hole 122g is provided in a part of the partition plate of the acoustic box body 110g constituting the acoustic box connecting body 120g, and the sound conducted through the acoustic box connecting body 120g is changed so that the sound quality is improved. An example of a configuration that is devised to change will be described.

  FIG. 17 is a diagram illustrating a configuration example of an acoustic device 100g in which a hole 122g is provided in a part of a partition plate that partitions the acoustic box body 110g of the acoustic box connecting body 120g. In this configuration example, a through hole 122g is provided in a part of the partition plate between the acoustic box body 110g (3) and the acoustic box body 110g (4).

  As described in the first embodiment, the acoustic box connecting body 120g changes its sound quality while the sound is conducted through the adjacent acoustic box small bodies 110g, but the acoustic box connecting body 120g has a sound box small body 110g. The two are separated by a partition plate that is a wall surface, and an acoustic inlet and an acoustic outlet are connected to each other. Here, if the hole 122g is provided in the partition plate, in addition to the sound propagating through the internal space through the connection between the sound inlet and the sound outlet, the sound propagating from the hole 122g is transmitted. After all, a change occurs in the conduction of sound. This change in acoustic conduction leads to a change in sound quality.

What kind of change in sound quality can be obtained depends on the shape and size of the acoustic box connecting body 120g as a whole, the shape and size of the acoustic box body 110g in each stage, how to contact the adjacent acoustic box body 110g, Since various elements such as the material of the partition plate are intertwined, it cannot be said unconditionally, but through trial and error, which acoustic hole body 110g and the acoustic box body 110g and the size of the through hole in which position of the partition plate Test whether 122g is provided and adjust the change in sound quality. How to change the sound quality largely depends on the taste of the user, and this adjustment is also a kind of know-how.
However, it will be understood that the sound quality can be changed by changing the way of acoustic conduction by providing the hole 121 in addition to the surface where the adjacent acoustic box bodies 110g directly contact each other.

As a seventh embodiment, a configuration example in which sound effect processing is performed on input music in order to enhance the acoustic effect of the acoustic device of the present invention will be described.
As shown in the first to sixth embodiments, the acoustic device 100 of the present invention can produce a richer and richer sound than the original sound regardless of the state of the input sound. There is an “acoustic characteristic” of the acoustic device of the present invention depending on the design of the internal space of the body 120.
If music with adjusted sound effects is used as an external sound source so that the “acoustic characteristics” of the acoustic apparatus of the present invention can be easily utilized, the acoustic effect of the acoustic apparatus of the present invention is likely to be improved. Therefore, for example, it is preferable to process the sound of the external sound source in advance by an application that adjusts the sound effect.

FIG. 18 is a diagram illustrating a configuration example with sound effect processing using the sound equalizer application according to the seventh embodiment.
An acoustic characteristic data holding unit 310 and a service system 320 equipped with a digital equalizer application exist inside the mobile communication terminal 200 or on a network 300 that can be accessed by the mobile communication terminal 200. The configuration example illustrated in FIG. 17 is a configuration example existing on the network 300.

The acoustic characteristic data holding unit 310 is a part that holds the acoustic characteristic data of the output sound.
The digital equalizer application 320 is an application having a digital equalizer function for adjusting the effect of the sound of the sound output from the mobile communication terminal 200 in accordance with the acoustic characteristic data stored by accessing the acoustic characteristic data holding unit 310. is there.

The user operates the mobile phone 200 in advance, adjusts the sound effect of the music digital data via the digital equalizer application, and prepares the sound with the adjusted sound effect. The sound effect adjusted sound is output from the external sound source opening 130 as an external sound source.
When the sound effect-adjusted sound passes through the internal space of the acoustic connecting body 120, an acoustic change in accordance with the acoustic characteristics is applied, but the sound effect is adjusted in advance so that the acoustic change is optimized. Therefore, the sound output from the speaker opening 140 can have a more excellent sound effect.

As described above, the preferred embodiments of the present invention have been illustrated and described. Thus, the shape, size, opening, etc. of the partition plate of the acoustic box connecting body are intentionally reduced with respect to the sound obtained from the external sound source. By ingeniously causing resonance and vibration inside the acoustic box connecting body, it is possible to obtain the acoustic effect of changing the sound quality from the entire box to rich sounds as if it were a musical instrument.
It will be understood that various modifications can be made without departing from the scope of the invention. Therefore, the technical scope of the present invention is limited only by the description of the appended claims.

It is a perspective view which shows the external appearance of the audio equipment 100 shown in the present Example 1. FIG. FIG. 3 is a cross-sectional view of the internal structure of the acoustic device 100 as viewed from the side. It is the figure which expanded the structure of a part in order to show the connection of an acoustic box body clearly. It is a figure which shows simply the acoustic model of this invention. It is the figure which rearranged and arranged the arrangement | sequence of the acoustic box body 110 of the acoustic apparatus 100 of this invention shown in FIG. It is a figure which shows the other structural example of the audio equipment 100a which belongs to type 1. FIG. It is the figure enclosed with the frame for every acoustic box body 110a so that the mode of the connection of the acoustic box body 110a in the acoustic connection body 120a may be understood easily. It is a figure which shows the structural example of the audio equipment 100b which belongs to type 2. FIG. It is the figure which showed the frame so that it might be easy to understand the sectional view which looked at the internal structure of sound equipment 100b from the side, and the state of connection of sound box body 110b. It is a figure which shows the structural example of the audio equipment 100c which belongs to type 3. FIG. It is the figure which showed the frame so that it might be easy to understand the cross-sectional view which looked at the internal structure of the sound device 100c from the side and the state of connection of the acoustic box bodies 110c. It is a figure which shows the structural example of the audio equipment 100d to which the housing | casing angle adjustment body 160 is applied. It is a figure which shows the structural example of the audio equipment 100d in which the housing | casing angle adjustment body 160 is integrated with the housing | casing of the acoustic connection body 120d. It is the figure which showed in cross section the thing which made the inside hollow in the type in which the housing angle adjusting body 160d is integrated with the housing of the acoustic connecting body 120d. It is a figure which shows the structural example of the audio equipment 100e which provided 151e hole in a part of front board body 150e. FIG. 16 is a diagram illustrating a configuration example of an acoustic device 100f in which a notch 114f through which cables and the like easily pass is provided in a part of the acoustic box casing 111f. It is a figure which shows the structural example of the acoustic apparatus 100g which provided the through-hole 122g in the one part partition plate of the acoustic box small body 110g which comprises the acoustic box connection body 120g. It is a figure which shows the structural example accompanied by the sound effect process using the sound equalizer application concerning Example 7. FIG. It is a figure which shows the structure of the speaker apparatus disclosed by patent document 1 in a prior art.

DESCRIPTION OF SYMBOLS 100 Sound apparatus 110 Sound box body 111 Sound box housing 112 Sound inlet 113 Sound outlet 114 Notch 115 Hole 120 Sound box connecting body 121 Partition plate 122 Exit hole 130 External sound source opening 140 Speaker opening 150 Front plate body 160 Housing angle Adjustment body 200 Mobile terminal 300 Network 310 Acoustic characteristic data holding unit 320 Digital equalizer application

Claims (14)

A plurality of acoustic box bodies having an acoustic inlet and an acoustic outlet provided in a part of the acoustic box housing and its wall surface are arranged in multiple stages, and the acoustic inlet of the acoustic box body at this stage is the acoustic box small part of the previous stage. Connected to the acoustic outlet of the body, the acoustic outlet of the acoustic box body of the current stage is connected to the acoustic inlet of the acoustic box body of the subsequent stage,
An external sound source opening for installing an external sound source with respect to the acoustic entrance of the acoustic box body at the first stage of the acoustic box connecting body;
A speaker opening that receives sound from the acoustic outlet of the acoustic box body at the final stage of the acoustic box connecting body and outputs the sound to the outside,
The acoustic box connecting body is arranged so that the size of the acoustic box body gradually increases, and the sound of the external sound source installed in the external sound source opening is conducted by the acoustic box connecting body, and the speaker An acoustic device that outputs from an opening.   In the communication of the acoustic box body of the acoustic box connecting body, the cross-sectional area of the communicating portion of the acoustic outlet in the front stage and the acoustic inlet in the rear stage is gradually increased so that the sound propagates. Item 2. The acoustic device according to Item 1.   In the acoustic box connecting body, by connecting the acoustic box bodies not in a linear direction but in a bent direction, the volume of the acoustic box connecting body is reduced, and the first stage to the last stage of the acoustic box connecting body. The acoustic device according to claim 1, wherein a long distance is secured within the acoustic box connecting body that communicates with the acoustic box.   Inside the acoustic box connecting body, a reflection surface is formed by adjusting the position and angle of the wall surface of the acoustic box body of the acoustic box body so that the sound is easily propagated to the next stage, and the sound is reflected to reflect the sound. The sound device according to claim 3, wherein the sound device is led to a speaker opening.   5. The acoustic device according to claim 1, wherein in the acoustic box connecting body, the acoustic box bodies share a part of a wall surface and an internal space.   Inside the acoustic box connecting body, three or more acoustic box bodies are connected, and a plurality of reflecting surfaces for reflecting the sound are provided, so that a plurality of reflected sounds reflected by the reflecting surfaces are superimposed. The sound device according to claim 1, wherein the sound device is guided to the speaker opening.   The housing angle adjustment body which adjusts the installation angle of the said sound box connection body is provided, The angle and direction of the sound output from the said speaker opening can be adjusted. Acoustic device.   The housing angle adjustment body is a box body having a wedge shape provided on a bottom surface portion of the acoustic box housing, and the angle and direction of the entire acoustic box housing are determined by the slope of the wedge shape. The acoustic device according to claim 7, which is to be changed.   By providing a hole in a part of the wall surface of the acoustic box casing, in addition to the sound conducted through the acoustic box connecting body, the sound leaking from the hole of the acoustic box casing is output to the outside. The acoustic device according to any one of claims 1 to 8.   A portion of a partition plate that separates the acoustic box bodies of the acoustic box connecting body is provided with a through hole, and the acoustic wave propagating through the acoustic inlet and the acoustic outlet of the communication portion between the acoustic box bodies is provided. The acoustic device according to any one of claims 1 to 9, wherein the acoustic device is configured to generate sound propagating from the hole.   The acoustic device according to any one of claims 1 to 10, wherein a wall surface of the acoustic box casing of the acoustic box connecting body is made of wood.   The acoustic device according to any one of claims 1 to 10, wherein a wall surface of the acoustic box casing of the acoustic box joint is formed of glass.   The external sound source opening is shaped so that a mobile communication terminal with a speaker can be inserted, and when the mobile communication terminal is inserted as the external sound source, the speaker enters the acoustic entrance of the acoustic box body at the first stage of the acoustic box connection body. The acoustic device according to any one of claims 1 to 12, wherein the acoustic device has a structure in which the position is opposed to each other. The acoustic characteristic data holding unit for holding the acoustic characteristic data of the output sound in the portable communication terminal or on the network accessible by the portable communication terminal, and the acoustic characteristic data by accessing the acoustic characteristic data holding unit It is equipped with a digital equalizer application that adjusts the effect of the sound of the sound output from the mobile communication device according to the sound, and before the user outputs the desired music from the mobile phone, the sound effect adjustment using the digital equalizer application The sound device according to claim 13, wherein a prepared sound is prepared and the sound can be output using the sound whose sound effect has been adjusted as an external sound source.

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