JP2018191047A - Double enclosure type speaker and external enclosure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double enclosure type speaker and an external enclosure for enabling a user to listen to beautiful sound with sound quality with high sharpness without feeling fatigue due to noise.SOLUTION: A double enclosure type speaker 100 includes an internal enclosure 30 including an internal speaker 20, and a box-shaped external enclosure 10 having an opening 11 to house the internal enclosure 30. In the double enclosure type speaker 100, a space is formed between a periphery of the internal enclosure 30 and an inner surface of the external enclosure 10, and the internal enclosure 30 is provided in the external enclosure 10 such that a front face of the internal speaker 20 is arranged at a position to which the opening 11 corresponds.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a double enclosure type speaker and an external enclosure.

  In recent years, with the advancement of audio technology, various new technologies have been developed for speakers that output sound. The speaker is generally composed of a speaker unit and an enclosure that houses the speaker unit.

  The speaker unit has a role of converting electrical signals into sound waves, and includes a member that vibrates sound waves. The types of speaker units are characterized by the widespread sound (directivity) by moving the cone-shaped diaphragm, which is the most common, and outputting sound by moving the cone-shaped diaphragm, and the dome-shaped diaphragm. A dome shape that amplifies sound emitted from a diaphragm with a horn is widely known.

  On the other hand, there are two types of enclosures, a sealed type and a busless type. The sealed type has a structure in which the speaker unit is sealed with an enclosure so that sound waves generated from the rear side of the speaker unit are not emitted. On the other hand, the busless type has a structure in which a port is opened on the front or back side of a sealed type to adjust the sound in and out to enhance the bass.

  Here, Patent Document 1 discloses a speaker unit in which a cylindrical sound absorbing tube is installed behind a baffle plate of the speaker unit. In the speaker disclosed in Patent Document 1, a cylindrical sound absorbing tube is disposed behind the speaker unit to absorb sound waves having opposite phases.

JP 2013-62631 A

  The inventor is an audio enthusiast and has been fascinated by the beautiful sound with high clarity and sharpness by listening to many live performances in the concert hall. For example, the sound is output from a speaker used at home. However, I became interested in being able to get a clear sound with a high degree of sharpness that I heard in a concert hall.

  The inventor conducted extensive research and found a double-enclosure speaker and an external enclosure that can output a clear sound and a high-sounding sound even if it is not a concert hall. In particular, not only when listening to music in a general home, but also when listening to music in a narrow and highly reflective room such as a karaoke room or a monitor room, the user is not aware of noise (that is, noise). We have found a double-enclosure speaker and an external enclosure that can listen to beautiful sound with high sound quality without feeling tired.

  An object of the present invention is to provide a double-enclosure speaker and an external enclosure that allow a user to listen to sound with high sound quality without feeling tired by noise.

  A double-enclosure speaker according to the present invention includes an internal enclosure in which a speaker unit and a port are incorporated, and a box-shaped external enclosure that has an opening and accommodates the internal enclosure. A space is formed between the periphery and the inner surface of the external enclosure, and the internal enclosure is arranged in the external enclosure so that the front surface of the speaker unit and the port is arranged at a corresponding position of the opening. It is provided in.

  An external enclosure according to the present invention is a box-shaped external enclosure that houses an internal enclosure in which a speaker unit and a port are incorporated, and corresponds to a position where sound is output from the speaker unit and the port. An opening is provided, and the internal enclosure is provided so that a space is formed around the internal enclosure.

  According to the present invention, a user can listen to a beautiful sound with a high sound quality without feeling tired due to noise.

1 is an external perspective view showing a double enclosure type speaker according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a plane schematic diagram which shows the internal structure of the double enclosure type speaker which concerns on embodiment of this invention, Comprising: (a) is the upper surface schematic diagram which looked at the double enclosure type speaker from upper direction, (b) FIG. 4 is a schematic diagram of the right side, (c) is a schematic diagram of the front, and (d) is a schematic diagram of the left side. It is a figure which shows the use condition of the double enclosure type speaker which concerns on embodiment of this invention, is connected to an audio reproduction apparatus, and the sound output from an audio reproduction apparatus when a user operates an audio reproduction apparatus is two. It is a figure which shows the state which a heavy enclosure type speaker outputs and the user is listening to the sound.

[Constitution]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a double enclosure type speaker 100 according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing the internal structure of the double-enclosure speaker 100 according to the embodiment of the present invention.

  In the following description, the left and right in the double enclosure type speaker 100 indicate the left and right direction with respect to the output direction S in which the double enclosure type speaker 100 outputs sound, and the front and rear are the double enclosure. The front-rear direction (output direction) from the back to the front of the speaker 100 is shown. 2 shows the internal structure of the double-enclosure speaker 100 using FIGS. 4A to 4D, where FIG. 2A shows a schematic top view and FIG. 2B shows the right side. A surface schematic diagram is shown, (c) shows a front schematic diagram, and (d) shows a left side schematic diagram.

  As shown in FIG. 1, the double enclosure type speaker 100 has a substantially rectangular parallelepiped shape, and includes an external enclosure 10 and an internal enclosure 30 in which the internal speaker 20 is incorporated.

  The external enclosure 10 includes a housing body 12 and a bottom plate 13. The housing body 12 has a substantially rectangular parallelepiped box shape whose bottom is opened. The bottom plate 13 is a lid-like flat plate and is provided on the bottom surface of the housing body 12 that is open. A long rectangular opening 11 is provided on the front surface of the housing body 12 in the vertical direction. The opening 11 is arranged at the center position in the up-down direction of the housing body 12 and at the center position in the left-right direction. The opening 11 is provided in the housing main body 12 corresponding to the front position where sound is output from the internal speaker 20 in the forward direction (output direction) S.

  The bottom plate 13 is formed so as to close the opened bottom surface of the housing body 12. In this case, the lower end edge of the housing body 12 and the upper surface of the bottom plate 13 are in close contact.

  The internal enclosure 30 has a housing body 31 that is a substantially rectangular parallelepiped box. In the case body 31, the speaker unit 21 and the port 22 are incorporated in the front plate of the case body 31. The speaker unit 21 is a member that vibrates a sound signal. The port 22 is a sound path that enhances bass by adjusting the sound in and out of the front and inside of the housing body 31. The port 22 has a cylindrical shape, has a circular shape on the front surface of the housing body 31, and is open at the end inside the internal enclosure 30. The internal enclosure 30 forms a so-called speaker by incorporating the internal speaker 20 into the housing body 31.

  The inside of the external enclosure 10 is sealed by a housing body 12 and a bottom plate 13. In the external enclosure 10, the front surface of the internal speaker 20 is fitted into the opening 11, thereby forming the front surface of the external enclosure 10 and sealing the periphery of the internal enclosure 30. In this case, since the bottom plate 13 closes the lower end edge of the housing body 12, a space for sealing the lower surface of the internal enclosure 30 and the bottom surface of the housing body 12 is formed. A space is formed between the periphery of the internal enclosure 30 and the inner surface of the external enclosure 10.

  In the embodiment of the present invention, the internal enclosure 30 in which the speaker unit 21 and the port 22 are incorporated to form a speaker is a position where sound is output from the speaker unit 21 and the port 22 by the housing body 12 and the bottom plate 13 ( That is, it covers so that the circumference | surroundings of the internal enclosure 30 other than the front surface of the housing main body 31 corresponding to the opening part 11 may be sealed. In other words, the upper surface, the lower surface, the left side surface, the right side surface, and the rear surface of the internal enclosure 30 are in close contact with the opening 11 and the front surface of the internal enclosure 30 corresponding to the opening 11 (that is, the front surface of the internal speaker 20). As a result, the housing body 12 and the bottom plate 13 are accommodated in a sealed space.

  As described above, in the double enclosure type speaker 100, the internal enclosure 30 is provided in the external enclosure 10 so that the front surface of the internal speaker 20 is disposed at a position corresponding to the opening 11. A space is formed between the periphery and the inner surface of the external enclosure 10.

  In FIG. 1 and FIG. 2, in order to support the internal enclosure 30, a base 15 is provided on the bottom plate 13, and the internal enclosure 30 is placed with the rubber plate 14 attached to the base 15.

  The base 15 has a substantially rectangular parallelepiped columnar shape, and supports the bottom surface of the housing body 31 of the internal enclosure 30 so as to be parallel to the bottom plate 13. The height of the base 15 can be set to an arbitrary height, and is fixed to the bottom plate 13 so that the internal enclosure 30 is in a desired position. Further, in FIG. 1 and FIG. 2, the base 15 is formed by two horizontally long pillars, but a shape capable of emitting sound into the space between the lower surface of the internal enclosure 30 and the bottom surface of the external enclosure 10. If it is, it will not specifically limit.

  The rubber plate 14 is formed in a flat plate shape and is provided on the base 15. The rubber plate 14 is provided to prevent the vibration of the housing body 31 from being transmitted to the external enclosure 10, and is provided for the purpose of absorbing the vibration of the housing body 31. The rubber plate 14 is not limited to absorbing the vibration of the housing body 31 and may be provided for the purpose of quickly letting the vibration to the base 15, for example. The rubber plate 14 can be applied with various materials, shapes, or structures in accordance with the purpose in addition to an elastic material such as rubber.

  In addition, in order to fix the internal enclosure 30 in the external enclosure 10, for example, a rod-shaped stopper may be provided on the housing body 12 of the external enclosure 10, and vibration of the internal enclosure 30 may be reduced. An elastic material or a vibration-absorbing material may be appropriately affixed to the place where it appears to occur. Further, a slip stopper may be provided as appropriate to prevent deviation due to vibration of the internal enclosure 30 or the like.

[Action / Effect]
FIG. 3 is a conceptual diagram showing a state in which the user is listening to the sound output from the double enclosure type speaker 100. The double enclosure type speaker 100 is connected to the audio playback device PY. The double-enclosure speaker 100 changes the electrical signal output from the audio playback device PY into sound when the audio playback device PY is operated by the user.

  In this case, when the music is played by the audio playback device PY, the user can directly listen to a beautiful sound close to the original sound from the front of the double enclosure type speaker 100. In particular, the double-enclosure speaker 100 has a sharpness without feeling tired due to noise (noise) when the user enjoys music in a narrow and highly reflective room such as a karaoke room or a monitor room. You can listen to the sound with high sound quality.

  Furthermore, since the internal enclosure 30 is formed so as to be sealed in the external enclosure 10, sound that causes noise from the periphery of the internal enclosure 30 leaks to the outside by the external enclosure 10. There is no such thing.

  Specifically, since the front surface of the internal enclosure 30 forms the front surface of the external enclosure 10, the top surface, the bottom surface, the left side surface, the right side surface, and the back surface of the internal enclosure 30 correspond to the periphery of the internal enclosure 30. .

  Here, the sound generated from the periphery of the internal enclosure 30 may be perceived as noise by the user when output to the outside as it is. The sound that is felt as noise makes the original sound turbid, and the user may not obtain the desired sound quality. Conventionally, this noise sometimes gives a user a feeling of fatigue.

  In contrast, the double-enclosure speaker 100 according to the embodiment of the present invention is formed so as to be sealed in the external enclosure 10 so that the periphery of the internal enclosure 30 is hermetically sealed. Since a space is formed between the periphery of the enclosure 30 and the vibration of the external enclosure 10 due to the sound generated from the periphery of the internal enclosure 30 is suppressed, a sound that becomes noise is output to the outside of the external enclosure 10. Block to prevent it.

  As a result, the double-enclosure speaker 100 can block the sound that causes noise, so that the user can listen to the sound with high sharpness without feeling tired by the noise.

  In FIG. 3, the double-enclosure speaker 100 is mounted on the base UD, and the audio playback device PY is stored on the base UD.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible unless it deviates from the summary.

  For example, the internal enclosure 30 may be provided in the external enclosure 10 so that the front surface of the internal speaker 20 is disposed at a corresponding position of the opening 11, and is not limited to being fitted. Absent. That is, for example, the internal enclosure 30 may be provided in the external enclosure 10 so that the front surface of the internal speaker 20 is fixed at the opening 11 with an adhesive. In this case, what is necessary is just to adhere | attach the front surface of the internal enclosure 30, and the back surface periphery outer peripheral part of the opening part 11 with an adhesive agent. In particular, it is desirable to use an elastic adhesive that can absorb the vibration of the casing body 31.

  In the embodiment of the present invention, the periphery of the internal enclosure 30 and the inner surface of the external enclosure 10 are formed so that a space is formed on the entire circumference of the internal enclosure 30, but the present invention is not limited to this. Absent. For example, a space may be formed around the inner enclosure 30 and a part of the inner surface of the external enclosure 10. It should be noted that, as in the embodiment of the present invention, a mode in which a space is formed around the entire circumference of the internal enclosure 30 is more preferable because sound that becomes noise can be blocked comprehensively.

  In addition, for example, the external enclosure 10 includes the opening 11 and is commercially available because the housing body 12 only needs to be formed so as to seal the internal enclosure 30 in which the internal speaker 20 is incorporated. It can also be applied to speakers. Even when the user already has a purchased speaker, the effect of the embodiment of the present invention can be realized by applying the external enclosure 10.

  Also, the dual enclosure type speaker 100 can be created by combining the compatibility of the speaker and the external enclosure 10. For example, in the embodiment of the present invention, the internal enclosure 30 and the external enclosure 10 are substantially rectangular parallelepipeds. However, the present invention is not limited to this, and the external enclosure 10 and the internal enclosure 10 are arranged according to user preferences. The shape of the enclosure 30 can be created to achieve the desired sound quality.

  Further, the material of the housing body 12 and the housing body 31 that form the external enclosure 10 and the double enclosure type speaker 100 is not particularly limited. That is, wood, metal, plastic, or the like can be used as the material for the housing body 12 and the housing body 31. For example, since it is assumed that the timbre changes depending on the material, it is possible to appropriately select the material and listen to the sound with a favorite timbre. In the embodiment of the present invention, since no sound is generated as noise from the surroundings of the external enclosure 10, the user can freely select a material having a timbre according to his / her preference, and the noise can be greatly reduced. You can listen to beautiful sounds with little sharpness.

  Similarly, the internal speaker 20 formed by incorporating the speaker unit 21 and the port 22 into the internal enclosure 30 is not particularly limited. For example, the external enclosure 10 and the double-enclosure speaker 100 can be applied in accordance with the user's timbre preference even with a full-range speaker, a 2-way speaker, and a 3-way speaker.

10 External Enclosure 11 Opening 12 Housing Body 13 Bottom Plate 14 Rubber Plate 15 Base 20 Internal Speaker 21 Speaker Unit 22 Port 30 Internal Enclosure 31 Housing Body 100 Dual Enclosure Speaker S Output Direction UD Base PY Audio Playback Device HB User

Claims (4)

An internal enclosure incorporating the speaker unit and port;
A box-shaped external enclosure having an opening and accommodating the internal enclosure,
A space is formed between the periphery of the inner enclosure and the inner surface of the external enclosure,
The double enclosure type speaker characterized in that the internal enclosure is provided in the external enclosure so that the front surface of the speaker unit and the port is arranged at a position corresponding to the opening. The double enclosure type speaker according to claim 1, wherein an internal space of the external enclosure is sealed. The double-enclosure speaker according to claim 1 or 2, wherein the external enclosure includes a housing main body whose bottom is opened and a bottom plate that closes the bottom surface. A box-shaped external enclosure for housing an internal enclosure in which a speaker unit and a port are incorporated,
Having an opening provided corresponding to a position where sound is output from the speaker unit and the port;
The external enclosure is provided so that a space is formed around the internal enclosure.

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