JP3143182U - Speaker device - Google Patents

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JP3143182U
JP3143182U JP2008002791U JP2008002791U JP3143182U JP 3143182 U JP3143182 U JP 3143182U JP 2008002791 U JP2008002791 U JP 2008002791U JP 2008002791 U JP2008002791 U JP 2008002791U JP 3143182 U JP3143182 U JP 3143182U
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speaker diaphragm
speaker
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洋 中田
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Abstract

【課題】簡単な構成で、低音を効率良く良好に再生可能なスピーカ装置を提供する。
【解決手段】受動側スピーカ振動板１２と、ボイスコイル２０ｃが取り付けられた駆動側スピーカ振動板２０ａと、受動側スピーカ振動板１２の背面側空間ａと駆動側スピーカ振動板２０ａを密閉状態で連結した箱状筐体１４とを備える。受動側スピーカ振動板１２と駆動側スピーカ振動板２０ａは、箱状筐体１４の同一側面または互いに対向する側面に位置するとともに、受動側スピーカ振動板１２と駆動側スピーカ振動板２０ａの中心位置が振動面方向にずれて位置する。受動側スピーカ振動板１２と駆動側スピーカ振動板２０ａとの間の箱状筐体１４内部空間を、屈曲した空間に仕切った仕切板１８を備える。仕切板１８により、箱状筐体１４内に屈曲した音響管部分１６を形成し、中高音帯域の空気振動を減衰させて、受動側スピーカ振動板１２を駆動側スピーカ振動板２０ａの振動により、受動側的に振動させる。
【選択図】図１Provided is a speaker device capable of efficiently and satisfactorily reproducing bass with a simple configuration.
A passive speaker diaphragm 12, a driving speaker diaphragm 20a to which a voice coil 20c is attached, a rear space a of the passive speaker diaphragm 12, and a driving speaker diaphragm 20a are connected in a sealed state. Box-shaped housing 14. The passive-side speaker diaphragm 12 and the driving-side speaker diaphragm 20a are located on the same side surface of the box-shaped housing 14 or opposite side surfaces, and the center positions of the passive-side speaker diaphragm 12 and the driving-side speaker diaphragm 20a are the same. It is shifted in the vibration plane direction. A partition plate 18 is provided that partitions the internal space of the box-shaped housing 14 between the passive speaker diaphragm 12 and the drive speaker diaphragm 20a into a bent space. The partition plate 18 forms a bent acoustic tube portion 16 in the box-shaped housing 14, attenuates the mid-high frequency band air vibration, and causes the passive speaker diaphragm 12 to vibrate by the vibration of the driving speaker diaphragm 20a. Vibrate passively.
[Selection] Figure 1

Description

この考案は、室内外の空間に設置されるスピーカであって、特に低音域を再生するスピーカ装置に関する。   The present invention relates to a speaker device that is installed in an indoor / outdoor space, and particularly reproduces a low sound range.

従来、特許文献１，２に開示されているように、一対のスピーカを管路で繋いで、一方のスピーカの振動板を他方のスピーカの振動により駆動する低音域スピーカ装置が提案されている。その他、ケルトン型スピーカ装置は、受動振動板の後ろ側に駆動用のスピーカが位置している構造であった。   Conventionally, as disclosed in Patent Documents 1 and 2, a low-frequency speaker device has been proposed in which a pair of speakers are connected by a pipe line, and a diaphragm of one speaker is driven by vibration of the other speaker. In addition, the Kelton type speaker device has a structure in which a driving speaker is located behind the passive diaphragm.

また、低音域を再生する技術として一般的なバスレフ型低音スピーカの応用技術であって、特許文献３で開示されているような低音用スピーカもある。この低音再生用スピーカは、スピーカの背面側から発生する空気振動を利用して低音出力を増強するケルトン型低音スピーカ装置であって、第１、第２スピーカを同相で駆動するとともに、低音用の第２スピーカにより、スピーカボックスに形成されたダクトを介して低音域が再生されるようにしたものである。
実開昭５５−４６３７６号公報 実開平３−９１８４８号公報 特開２００２−３３０４８６号公報 Also, there is a bass speaker as disclosed in Patent Document 3, which is an applied technology of a general bass reflex type bass speaker as a technology for reproducing a bass range. This bass reproduction speaker is a kelton bass speaker device that enhances bass output by utilizing air vibration generated from the back side of the speaker, and drives the first and second speakers in phase, The low frequency range is reproduced by the second speaker through a duct formed in the speaker box.
Japanese Utility Model Publication No. 55-46376 Japanese Utility Model Publication No. 3-91848 JP 2002-330486 A

しかし、特許文献１、２に開示されたスピーカ装置の場合、一対のスピーカを繋ぐ管路が直線的、直結的又は直面した状態で接続されており、特許文献１にあっては空気振動を抑える管路抵抗が小さいため、中高音域が減衰できないものであった。また、特許文献２にあっては管路が固定された経路であり、その管路抵抗を適宜調節することができず、最適な音響空間に設定することができないものであった。   However, in the case of the speaker devices disclosed in Patent Documents 1 and 2, the pipes connecting the pair of speakers are connected in a straight line, a direct connection, or faced state, and in Patent Document 1, air vibration is suppressed. Since the pipe resistance is small, the mid-high range cannot be attenuated. Moreover, in patent document 2, it is a path | route with which the pipe line was fixed, The pipe line resistance could not be adjusted suitably, and it could not be set to the optimal acoustic space.

また、特許文献３に開示されたスピーカ装置の場合、低音用スピーカの背面側から発生する空気振動が音響室及びダクトからなる管路を通過して外部に伝達される際、管路の構造と空気振動の関係で耳障りな風切音が発生する場合がある。さらに、中高音域の減衰特性を調整することはできず、最適な音響空間に設定することができないものであった。さらに、低音の立上り音が不必要に際立ち、他の可聴音全域の音に溶け込まないなどの問題があった。   Further, in the case of the speaker device disclosed in Patent Document 3, when the air vibration generated from the back side of the bass speaker is transmitted to the outside through the conduit including the acoustic chamber and the duct, the structure of the conduit is An annoying wind noise may occur due to air vibration. Furthermore, the attenuation characteristics in the middle and high sound range cannot be adjusted, and the optimum acoustic space cannot be set. In addition, there was a problem that the rising sound of the low frequency stood out unnecessarily and did not blend into the sound of other audible sounds.

一般的なケルトン型スピーカ装置の場合、駆動用スピーカから従動振動板への伝達効率が高く、中高音域の減衰が不十分であり、低音域の立ち上がり時の高音成分が消せないものであった。   In the case of a general kelton type speaker device, the transmission efficiency from the driving speaker to the driven diaphragm is high, the attenuation of the mid-high range is insufficient, and the high frequency component at the start of the low range cannot be erased. .

この考案は、上記背景技術に鑑みて成されたもので、簡単な構成で、低音を効率良く良好に再生可能なスピーカ装置を提供することを目的とする。   The present invention has been made in view of the above-described background art, and an object thereof is to provide a speaker device capable of efficiently and satisfactorily reproducing bass with a simple configuration.

この考案は、受動側スピーカ振動板と、ボイスコイルが設けられた駆動側スピーカ振動板と、前記受動側スピーカ振動板の背面側空間と前記駆動側スピーカ振動板を連結した箱状筐体とを備え、前記受動側スピーカ振動板を前記駆動側スピーカ振動板の振動により、前記箱状筐体内部の空気振動を介して受動的に振動させるスピーカ装置において、前記受動側スピーカ振動板と駆動側スピーカ振動板は前記箱状筐体の同一側面または互いに対向する側面に位置するとともに前記受動側スピーカ振動板と駆動側スピーカ振動板の中心位置が振動面方向にずれて位置し、前記受動側スピーカ振動板と前記駆動側スピーカ振動板との間の前記箱状筐体内部空間を密閉空間に形成するとともに、この密閉空間を屈曲状態に仕切った仕切板を設け、前記仕切板により前記箱状筐体内に屈曲した音響管部分を形成し、前記駆動側スピーカ振動板の前記音響管部分が形成された側とは反対側の空間も密閉空間に形成して前記駆動側スピーカ振動板からの音を密閉し、前記音響管部分により、前記駆動側スピーカ振動板による音の周波数帯域のうち中高音帯域の空気振動を減衰させて前記受動側スピーカ振動板を駆動するスピーカ装置である。   The present invention comprises a passive speaker diaphragm, a driving speaker diaphragm provided with a voice coil, a back side space of the passive speaker diaphragm, and a box-shaped housing connecting the driving speaker diaphragm. A passive-side speaker diaphragm, wherein the passive-side speaker diaphragm and the driving-side speaker are passively vibrated through air vibration inside the box-shaped housing by vibration of the driving-side speaker diaphragm. The diaphragm is positioned on the same side surface of the box-shaped housing or on the side surfaces facing each other, and the center positions of the passive speaker diaphragm and the driving speaker diaphragm are shifted in the vibration surface direction, and the passive speaker vibration is Forming the box-shaped housing internal space between the plate and the drive-side speaker diaphragm in a sealed space, and providing a partition plate that partitions the sealed space in a bent state, An acoustic tube portion bent in the box-shaped housing is formed by a cut plate, and a space on the side opposite to the side where the acoustic tube portion of the driving-side speaker diaphragm is formed is also formed in a sealed space, and the driving side A speaker device that seals sound from a speaker diaphragm and drives the passive speaker diaphragm by attenuating mid to high-frequency air vibrations in the frequency band of sound generated by the driving speaker diaphragm by the acoustic tube portion. It is.

前記受動側スピーカ振動板と前記駆動側スピーカ振動板は、扁平な前記箱状筐体の幅広の一側面に取り付けられている。   The passive speaker diaphragm and the driving speaker diaphragm are attached to one wide side surface of the flat box-shaped housing.

前記仕切板には、位置が調節可能であって、前記音響管部分の管路を異なる経路に切り換えて、前記管路の長さを変える調整部材を備えたことを特徴とする請求項１又は２記載のスピーカ装置。である。   2. The partition plate according to claim 1, further comprising an adjustment member that is adjustable in position, and that changes a length of the conduit by switching a conduit of the acoustic tube portion to a different route. 2. The speaker device according to 2. It is.

前記駆動側スピーカ振動板は受動側スピーカ振動板よりも小さく、駆動側スピーカ振動板の背面側空間が密閉されているものでも良い。   The drive-side speaker diaphragm may be smaller than the passive-side speaker diaphragm, and the back-side space of the drive-side speaker diaphragm may be sealed.

この考案のスピーカ装置によれば、音響管部分内部の仕切板による迷路構造による管路抵抗よって駆動側の駆動側スピーカ振動板が発生する中高音域が減衰されるとともに、受動側の受動側スピーカ振動板によって、従来例のような管路やポートから発する耳障りな風切音や、低音の不必要な立上り音が除去され、低音が可聴音全域の音に溶け込み、穏やかな立上りと長い余韻をもった、自然で理想的な音が再生される。また、薄型の箱状筐体で、受動側のスピーカ振動板により極低音の効果的な再生が可能であり、高価なパワーアンプも必要とせず、コストも安価なものにすることができる。   According to the speaker device of the present invention, the mid-high range generated by the driving-side speaker diaphragm on the driving side is attenuated by the pipe resistance due to the maze structure formed by the partition plate inside the acoustic tube portion, and the passive-side passive speaker The diaphragm removes annoying wind noises from the pipes and ports as in the conventional example, and unnecessary rising sounds of low frequencies, so that the low sounds blend into the sound of the entire audible range, giving a gentle rise and a long reverberation. The sound is natural and ideal. In addition, a thin box-shaped housing can effectively reproduce extremely low sounds by the passive speaker diaphragm, and an expensive power amplifier is not required, and the cost can be reduced.

さらに、音響管部分に調整部材を設け、その角度をアンプ装置の性能、設置環境あるいは聴取者の趣向等に合わせて適宜調整することにより、常に最適な音を再生することが可能である。   Furthermore, it is possible to always reproduce the optimum sound by providing an adjustment member in the acoustic tube portion and appropriately adjusting the angle according to the performance of the amplifier device, the installation environment, the taste of the listener, and the like.

以下、この考案のスピーカ装置の実施形態について、図面を基にして説明する。図１は、この考案の第一の実施形態を示すもので、スピーカ装置１０は、極低音を再生するウーファーとして使用される。スピーカ装置１０は、図１に示すように、紙又はアルミなどにより形成され、例えば直径約２０ｃｍ〜３８ｃｍのコーン状受動側スピーカ振動板１２を備えている。受動側スピーカ振動板１２は、比較的薄い形状の直方体である箱状筐体１４の最大面積の側面の中央部から一方の端に偏らせた箇所に位置し、受動側スピーカ振動板１２の前面側を箱状筐体１４の外部に向けて取り付けられている。受動側スピーカ振動板１２は駆動部を有しておらず、背面側の空間ａが、後述する駆動側スピーカ２０による空気振動により受動側的に振動する。   Hereinafter, embodiments of the speaker device of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. A speaker device 10 is used as a woofer for reproducing extremely low sounds. As shown in FIG. 1, the speaker device 10 is made of paper, aluminum, or the like, and includes a cone-shaped passive speaker diaphragm 12 having a diameter of about 20 cm to 38 cm, for example. The passive speaker diaphragm 12 is located at a position deviated from the central portion of the side surface of the maximum area of the box-shaped housing 14 which is a relatively thin rectangular parallelepiped to one end, and the front surface of the passive speaker diaphragm 12. The side is attached to the outside of the box-shaped housing 14. The passive speaker diaphragm 12 does not have a drive unit, and the space a on the back side vibrates passively due to air vibration by the drive speaker 20 described later.

空間ａには、空気振動を伝達する音響管部分１６が、一体的に連続している。音響管部分１６は、箱状筐体１４内の空間を仕切板１８により直角に屈曲した状態に仕切られ、箱状筐体１４内で、対称に配置され、空気振動が伝搬する屈曲した経路が迷路状に形成されている。音響管部分１６の他の一方は、箱状筐体１４の他方の側の空間ｂに一体的に連続しており、後述する駆動側スピーカ２０の駆動側スピーカ振動板２０ａにより発生する空間ｂの空気振動が音響管部分１６に伝搬可能に配置されている。   In the space a, an acoustic tube portion 16 for transmitting air vibration is integrally continuous. The acoustic tube portion 16 is partitioned into a state in which the space in the box-shaped housing 14 is bent at a right angle by the partition plate 18, and is disposed symmetrically in the box-shaped housing 14, so that a bent path through which air vibrations propagate is formed. It is formed in a maze shape. The other one of the acoustic tube portions 16 is integrally continuous with the space b on the other side of the box-shaped housing 14, and the space b generated by the drive-side speaker diaphragm 20a of the drive-side speaker 20 described later. Air vibration is disposed so as to be able to propagate to the acoustic tube portion 16.

駆動側スピーカ２０は、紙又はアルミなどにより形成され、例えば直径約１３〜２０ｃｍの駆動側スピーカ振動板２０ａを備えている。駆動側スピーカ２０は、箱状筐体１４の受動側スピーカ振動板１２が取付けられた側面と同一の面であって、箱状筐体１４の中央部から受動側スピーカ振動板１２に対して反対側の端に偏らせた箇所に位置している。駆動側スピーカ振動板２０ａは、前面側を筐体１４の内部の空間ｂに向けて取り付けられ、駆動側スピーカ２０の背面側にはボイスコイル２０ｃが設けられ、パワーアンプ装置２４からの信号ケーブル２２が接続可能に形成されている。駆動側スピーカ２０の背面側には、駆動側スピーカ振動板２０ａ及びボイスコイル２０ｃを覆って、スピーカ収納部２０ｂが設けられている。スピーカ収納部２０ｂは、駆動側スピーカ振動板２０ａから不要な音漏れの防止のため、外部空間や箱状筐体１４の空間ｂとは気密状態に取り付けられ、密閉された空間ｃを形成している。   The drive-side speaker 20 is made of paper or aluminum, and includes a drive-side speaker diaphragm 20a having a diameter of about 13 to 20 cm, for example. The drive-side speaker 20 is the same surface as the side surface of the box-shaped housing 14 on which the passive-side speaker diaphragm 12 is attached, and is opposite to the passive-side speaker diaphragm 12 from the center of the box-shaped housing 14. It is located at a location biased to the end of the side. The drive-side speaker diaphragm 20 a is attached with the front side facing the space b inside the housing 14, the voice coil 20 c is provided on the back side of the drive-side speaker 20, and the signal cable 22 from the power amplifier device 24. Is formed to be connectable. A speaker housing portion 20b is provided on the back side of the driving speaker 20 so as to cover the driving speaker diaphragm 20a and the voice coil 20c. The speaker storage portion 20b is attached to the external space and the space b of the box-shaped housing 14 in an airtight state to prevent unnecessary sound leakage from the drive-side speaker diaphragm 20a, thereby forming a sealed space c. Yes.

この実施形態のスピーカ装置１０の動作は、図１に示すように、アンプ装置２４からの信号ケーブル２２が接続された駆動側スピーカ２０が、アンプ２４からの駆動信号によりボイスコイル２０ｃが駆動され、これにより駆動側スピーカ振動板２０ａが振動する。駆動側スピーカ振動板２０ａの振動は、駆動側スピーカ２０の前面の空間ｂを振動させ、その振動が音響管部分１６内に伝達される。仕切板１８で構成された迷路構造の音響管部分１６内では、固有の管路抵抗及び音響特性によって、中高音域が減衰され、特定の低周波帯域での共振により低周波成分が増幅される。ここで、減衰される周波数帯域と、共鳴する周波数帯域は、音響管部分１６の管路長とその形状、体積等により定まる。中高音域が減衰され低周波成分が増幅された空気振動は空間ａに伝達され、受動側スピーカ振動板１２は、背面側の空間ａの空気振動により受動側的に振動する。   As shown in FIG. 1, the operation of the speaker device 10 of this embodiment is such that the driving speaker 20 to which the signal cable 22 from the amplifier device 24 is connected is driven by the voice coil 20 c by the drive signal from the amplifier 24. As a result, the drive-side speaker diaphragm 20a vibrates. The vibration of the drive-side speaker diaphragm 20 a vibrates the space b on the front surface of the drive-side speaker 20, and the vibration is transmitted into the acoustic tube portion 16. In the acoustic tube portion 16 of the labyrinth structure constituted by the partition plate 18, the mid-high range is attenuated by the inherent duct resistance and acoustic characteristics, and the low frequency component is amplified by resonance in a specific low frequency band. . Here, the frequency band to be attenuated and the frequency band to resonate are determined by the pipe length of the acoustic tube portion 16, its shape, volume, and the like. The air vibration in which the mid-high sound range is attenuated and the low frequency component is amplified is transmitted to the space a, and the passive speaker diaphragm 12 vibrates passively by the air vibration of the space a on the back side.

この実施形態のスピーカ装置１０は、音響管部分１６の構造と空気振動の関係で発生する耳障りな風切音の振動成分や、低音の不必要な立上り音の振動成分を、音響管部分１６内の空気の弾性と質量及び受動側スピーカ振動板１２の質量による慣性により、効果的に除去される。さらに、穏やかな立上りと長い余韻をもった低音であって、可聴音全域の音に自然に溶け込む低音を効果的に再生することができる。また、構造も、薄型に形成することができ、置き場所を選ばない構造とすることができる。さらに、音響管部分１６による出力の低下は、パワーアンプ装置２４の出力調整により補えるものである。   The loudspeaker device 10 according to this embodiment is configured to transmit an unpleasant wind noise vibration component generated due to the relationship between the structure of the acoustic tube portion 16 and air vibration, or an unnecessary rising sound vibration component in the acoustic tube portion 16. Is effectively removed by the elasticity and mass of the air and the inertia due to the mass of the passive speaker diaphragm 12. Furthermore, it is possible to effectively reproduce a bass that has a gentle rise and a long reverberation, and that naturally blends into the entire audible sound. Moreover, the structure can also be formed thinly and can be made into a structure which does not choose a place. Further, the decrease in the output due to the acoustic tube portion 16 can be compensated by adjusting the output of the power amplifier device 24.

次に第二の実施形態について、図２を用いて説明する。ここで、上記実施形態と同様の構成は同一の符号を付して説明を省略する。この実施形態のスピーカ装置３０は、受動側スピーカ振動板１２の背面側に、空間ａ、音響管部分１６、空間ｂ、駆動側スピーカ２０が互いに重なり合うように、直線的に配置されている構造を有しており、上記第一実施形態のスピーカ装置１０と同様の動作をする。特に、スピーカ装置３０においては、幅、奥行き及び高さのバランスがとれた直方体に形成され、全体として小型サイズのスピーカ装置を提供することができる。   Next, a second embodiment will be described with reference to FIG. Here, the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof is omitted. The speaker device 30 of this embodiment has a structure in which the space a, the acoustic tube portion 16, the space b, and the driving speaker 20 are linearly arranged on the back side of the passive speaker diaphragm 12 so as to overlap each other. And operates in the same manner as the speaker device 10 of the first embodiment. In particular, the speaker device 30 is formed in a rectangular parallelepiped having a balanced width, depth, and height, so that a small-sized speaker device can be provided as a whole.

次にこの考案の第三の実施形態について、図３を用いて説明する。ここで、上記実施形態と同様の構成は同一の符号を付して説明を省略する。この実施形態のスピーカ装置４０は、前述のスピーカ装置１０の特定の仕切板に代えて、仕切板固定部４２の端部に回転軸４４を介して調整部材４６を設けたものである。   Next, a third embodiment of the present invention will be described with reference to FIG. Here, the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof is omitted. In the speaker device 40 of this embodiment, an adjustment member 46 is provided at the end of the partition plate fixing portion 42 via a rotation shaft 44 instead of the specific partition plate of the speaker device 10 described above.

調整部材４６による調整機能は、図３（ａ）に示すように調整部材４６が回転軸４４を基準にして受動側スピーカ１２側に角度を設定した場合、空気振動の経路が２経路形成される。図３（ｂ）に示すように調整部材４６を仕切板固定部４２と直線を示す角度に設定した場合には、図３（ａ）で形成した２経路のうち、距離が短い方の経路が調整部材４６によって遮られ、距離が長い方の経路のみが空気振動を伝達する。すなわち、図３（ｂ）の音響管部分１６の管路抵抗は、図３（ａ）に比べて相対的に高くなり、中高音域の減衰がより顕著になるという特性を示す。また、図３（ｃ）に示すように調整部材４６が回転軸４４を基準にして駆動側スピーカ２０側に角度を設定した場合には、図３（ａ）で形成した２経路のうち、距離が長い方の経路が調整部材４６によって遮られ、距離が短い方の経路のみが空気振動を伝達する。すなわち、図３（ｃ）の音響管部分１６の管路抵抗は、図３（ａ）に比べて相対的に高く、図３（ｂ）に比べて相対的に低くなり、中間的な減衰の特性を示す。   As shown in FIG. 3A, the adjustment function by the adjustment member 46 is such that when the adjustment member 46 sets an angle toward the passive speaker 12 with respect to the rotation shaft 44, two air vibration paths are formed. . As shown in FIG. 3B, when the adjustment member 46 is set to an angle that shows a straight line with the partition plate fixing portion 42, the path having the shorter distance among the two paths formed in FIG. Only the path that is blocked by the adjusting member 46 and has a longer distance transmits air vibrations. That is, the pipe resistance of the acoustic tube portion 16 in FIG. 3B is relatively higher than that in FIG. 3A, and exhibits a characteristic that the attenuation in the mid-high range becomes more remarkable. Also, as shown in FIG. 3C, when the adjustment member 46 sets an angle toward the driving speaker 20 with respect to the rotation shaft 44, the distance between the two paths formed in FIG. The longer path is blocked by the adjustment member 46, and only the shorter path transmits air vibration. That is, the pipe resistance of the acoustic tube portion 16 in FIG. 3C is relatively higher than that in FIG. 3A and relatively lower than that in FIG. Show properties.

この実施形態のスピーカ装置４０は、調整部材４６の角度調節を可能にし、音響管部分１６の迷路構造がもつ空気振動の管路抵抗を調整可能としたものであり、パワーアンプ装置２４、スピーカ装置４０の設置環境、あるいは聴取者の趣向に合わせて適宜調整することで、最適な音を再生することができる。なお、調整部材４６は揺動するものの他、直線的に摺動するものや曲線的に摺動するものでも良く、音響管部分１６の形状や長さを変えることができるものであればよい。   The speaker device 40 according to this embodiment is capable of adjusting the angle of the adjusting member 46 and adjusting the duct resistance of air vibration of the labyrinth structure of the acoustic tube portion 16. The power amplifier device 24, the speaker device The optimum sound can be reproduced by appropriately adjusting according to the installation environment of 40 or the taste of the listener. The adjusting member 46 may be one that slides linearly or one that slides in a curved line in addition to one that swings, as long as the shape and length of the acoustic tube portion 16 can be changed.

次にこの考案の第四の実施形態について、図４を用いて説明する。ここで、上記実施形態と同様の構成は同一の符号を付して説明を省略する。スピーカ装置５０は、上記第一実施形態の仕切板の配置形状を変えたもので、駆動側スピーカ２０を扁平な箱状筐体１４の幅広の側面に対向した内側壁１５に配置し、ボイスコイル２０ｃの側が、迷路状の音響管部分１６の密閉空間内に位置し、駆動側スピーカ振動板２０ａの表側は、箱状筐体１４の背面側の密閉された空間ｃに面している。   Next, a fourth embodiment of the invention will be described with reference to FIG. Here, the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof is omitted. The speaker device 50 is obtained by changing the arrangement shape of the partition plate according to the first embodiment, and the driving speaker 20 is arranged on the inner side wall 15 facing the wide side surface of the flat box-shaped housing 14, and the voice coil The side of 20 c is located in the sealed space of the maze-like acoustic tube portion 16, and the front side of the drive-side speaker diaphragm 20 a faces the sealed space c on the back side of the box-shaped housing 14.

この実施形態のスピーカ装置５０によっても、上記実施形態と同様の効果を得ることができ、例えば小型で大出力を必要としない用途において低音領域を効果的に再生可能となる。特に、受動側スピーカ振動板１２と駆動側スピーカ振動板２０ａの近傍で音響管部分１６の経路が折り返すような形状となっており、上記実施形態と同様に、中高音域の減衰効果を得ることができる。   Also with the speaker device 50 of this embodiment, the same effect as that of the above embodiment can be obtained. For example, a bass region can be effectively reproduced in a small-sized application that does not require a large output. In particular, the path of the acoustic tube portion 16 is folded in the vicinity of the passive speaker diaphragm 12 and the drive speaker diaphragm 20a, and the mid-high range attenuation effect is obtained as in the above embodiment. Can do.

次に第五の実施形態について、図５を用いて説明する。ここで、上記実施形態と同様の構成は同一の符号を付して説明を省略する。この実施形態のスピーカ装置６０は、受動側スピーカ振動板１２と直交する向きに駆動側スピーカ２０が設けられてものである。駆動側スピーカ２０の背面側のボイスコイル２０ｃが位置した空間には、音響管部分１６が位置している。駆動側スピーカ２０の前面側の空間ｃは隔壁１７により密閉されている。   Next, a fifth embodiment will be described with reference to FIG. Here, the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof is omitted. The speaker device 60 of this embodiment is such that the driving speaker 20 is provided in a direction orthogonal to the passive speaker diaphragm 12. The acoustic tube portion 16 is located in the space where the voice coil 20c on the back side of the driving speaker 20 is located. A space c on the front surface side of the driving speaker 20 is sealed by a partition wall 17.

この構造によっても上記実施形態と同様の効果を得ることができ、特に、音響管部分１６は直線的であるが、受動側スピーカ振動板１２と駆動側スピーカ振動板２０ａが直角に配置され、中高音域の減衰効果を得ることができる。   This structure can provide the same effect as that of the above embodiment. In particular, the acoustic tube portion 16 is linear, but the passive speaker diaphragm 12 and the drive speaker diaphragm 20a are arranged at right angles, and the middle. A high-frequency attenuation effect can be obtained.

なお、この考案のスピーカ装置は上記実施形態に限定されるものではなく、受動側スピーカ振動板と駆動側スピーカ振動板の形状は、円形以外に、楕円形や四角形でも良く、奥行き形状もコーン型、平面板のいずれの形状でも良く、適宜の形状に設定可能である。また、受動側スピーカ振動板と駆動側スピーカ振動板の位置は、互いに同じ向き又は逆向きの何れでも良く、互いに異なる方向を向いていても良い。さらに、受動側スピーカ振動板と駆動側スピーカ振動板の大きさは、互い同じものでも良いが、受動側スピーカ振動板が相対的に大きく、駆動側スピーカ振動板は小さいものにすることにより、スペース効率がよい構成とすることができる。駆動側スピーカ振動板は、その前面及び背面の何れを音響管部分に連通した空間に向けても良い。さらに、受動側振動板及び駆動側のスピーカを複数設けても良く、適宜大きさや数を設定し得る。   The speaker device of the present invention is not limited to the above embodiment, and the shape of the passive-side speaker diaphragm and the driving-side speaker diaphragm may be elliptical or rectangular in addition to the circular shape, and the depth shape is also a cone type. Any shape of the flat plate may be used, and an appropriate shape can be set. Further, the positions of the passive speaker diaphragm and the driving speaker diaphragm may be in the same direction or in opposite directions, and may be in different directions. Further, the size of the passive speaker diaphragm and the driving speaker diaphragm may be the same, but by making the passive speaker diaphragm relatively large and the driving speaker diaphragm small, the space is reduced. An efficient configuration can be obtained. The drive-side speaker diaphragm may be directed to a space where either the front surface or the back surface communicates with the acoustic tube portion. Furthermore, a plurality of passive diaphragms and driving speakers may be provided, and the size and number can be set as appropriate.

また、箱状筐体は直方体に限定するものではなく、設置場所等の空間的制約に合わせて適宜変更してもよい。箱状筐体の前面側に形成される空間は、良好な低音出力が得られる形状であれば良い。また、仕切板の配置や形状、角度調性部材の配置や形状については、音響管部分内で所定の管路抵抗となるように設定されたものであればよい。スピーカ装置の筐体を形成する素材は、音圧に耐えて、振動板やスピーカを保持可能な強度を有していれば、木材や樹脂及び金属など適宜設定可能なものである。この発明のスピーカ装置の設置場所も、室内や室外、車の中でも良く、任意の場所に設置可能なものである。   Further, the box-shaped housing is not limited to a rectangular parallelepiped, and may be appropriately changed in accordance with spatial restrictions such as an installation location. The space formed on the front side of the box-shaped housing may be a shape that can provide a good bass output. Further, the arrangement and shape of the partition plate and the arrangement and shape of the angle adjusting member may be set so as to have a predetermined pipe resistance in the acoustic tube portion. The material forming the housing of the speaker device can be appropriately set to wood, resin, metal, or the like as long as it can withstand sound pressure and has a strength capable of holding the diaphragm and the speaker. The speaker device according to the present invention may be installed indoors, outdoors, or in a car, and can be installed at any location.

この考案の第一の実施形態のスピーカ装置を示す縦断面図（ａ）及び横断面図（ｂ）である。It is the longitudinal cross-sectional view (a) and the cross-sectional view (b) which show the speaker apparatus of 1st embodiment of this invention. 第二の実施形態のスピーカ装置を示す縦断面図（ａ）及び横断面図（ｂ）である。It is the longitudinal cross-sectional view (a) and cross-sectional view (b) which show the speaker apparatus of 2nd embodiment. この考案の第三の実施形態のスピーカ装置であって、調整部材による音響管部分内の迷路構造の調節状態（ａ）（ｂ）（ｃ）を示す図であるIt is a speaker apparatus of 3rd embodiment of this invention, Comprising: It is a figure which shows the adjustment state (a) (b) (c) of the maze structure in the acoustic tube part by an adjustment member. この考案の第四の実施形態のスピーカ装置を示す縦断面図（ａ）及び横断面図（ｂ）であるIt is the longitudinal cross-sectional view (a) and horizontal cross-sectional view (b) which show the speaker apparatus of 4th embodiment of this invention. 第五の実施形態のスピーカ装置を示す横断面図であるIt is a cross-sectional view showing a speaker device of a fifth embodiment.

符号の説明Explanation of symbols

１０，３０，４０，５０，６０ スピーカ装置
１２ 受動側スピーカ振動板
１４ 箱状筐体
１６ 音響管部分
１８ 仕切板
２０ 駆動側スピーカ
２０ａ 駆動側スピーカ振動板
２０ｂ スピーカ収納部
２０ｃ ボイスコイル
２４ パワーアンプ装置
ａ，ｂ，ｃ 空間 10, 30, 40, 50, 60 Speaker device 12 Passive side speaker diaphragm 14 Box-shaped casing 16 Acoustic tube portion 18 Partition plate 20 Driving side speaker 20a Driving side speaker diaphragm 20b Speaker housing portion 20c Voice coil 24 Power amplifier device a, b, c space

Claims (4)

受動側スピーカ振動板と、ボイスコイルが設けられた駆動側スピーカ振動板と、前記受動側スピーカ振動板の背面側空間と前記駆動側スピーカ振動板を連結した箱状筐体とを備え、前記受動側スピーカ振動板を前記駆動側スピーカ振動板の振動により、前記箱状筐体内部の空気振動を介して受動的に振動させるスピーカ装置において、
前記受動側スピーカ振動板と駆動側スピーカ振動板は前記箱状筐体の同一側面または互いに対向する側面に位置するとともに前記受動側スピーカ振動板と駆動側スピーカ振動板の中心位置が振動面方向にずれて位置し、前記受動側スピーカ振動板と前記駆動側スピーカ振動板との間の前記箱状筐体内部空間を密閉空間に形成するとともに、この密閉空間を屈曲状態に仕切った仕切板を設け、前記仕切板により前記箱状筐体内に屈曲した音響管部分を形成し、前記駆動側スピーカ振動板の前記音響管部分が形成された側とは反対側の空間も密閉空間に形成して前記駆動側スピーカ振動板からの音を密閉し、前記音響管部分により、前記駆動側スピーカ振動板による音の周波数帯域のうち中高音帯域の空気振動を減衰させて前記受動側スピーカ振動板を駆動することを特徴とするスピーカ装置。 A passive speaker diaphragm; a driving speaker diaphragm provided with a voice coil; and a box-shaped housing connecting the driving speaker speaker diaphragm with a back side space of the passive speaker diaphragm. In the speaker device that passively vibrates the side speaker diaphragm through the air vibration inside the box-shaped housing by the vibration of the driving side speaker diaphragm,
The passive speaker diaphragm and the driving speaker diaphragm are located on the same side surface of the box-shaped housing or opposite side surfaces, and the center position of the passive speaker diaphragm and the driving speaker diaphragm is in the vibration surface direction. The box-shaped housing internal space between the passive speaker diaphragm and the driving speaker diaphragm is formed in a sealed space, and a partition plate that partitions the sealed space into a bent state is provided. Forming an acoustic tube portion bent in the box-shaped housing by the partition plate, and forming a space on the opposite side of the drive-side speaker diaphragm on the side where the acoustic tube portion is formed in a sealed space; The sound from the drive-side speaker diaphragm is sealed, and the passive-side speaker vibration is attenuated by the acoustic tube portion by attenuating middle- and high-frequency air vibrations in the frequency band of the sound generated by the drive-side speaker diaphragm. Speaker apparatus characterized by driving the plate. 前記受動側スピーカ振動板と前記駆動側スピーカ振動板は、扁平な前記箱状筐体の幅広の一側面に取り付けられていることを特徴とする請求項１記載のスピーカ装置。   The speaker device according to claim 1, wherein the passive speaker diaphragm and the driving speaker diaphragm are attached to one wide side surface of the flat box-shaped housing. 前記仕切板には、位置が調節可能であって、前記音響管部分の管路を異なる経路に切り換えて、前記管路の長さを変える調整部材を備えたことを特徴とする請求項１又は２記載のスピーカ装置。   2. The partition plate according to claim 1, further comprising an adjustment member that is adjustable in position, and that changes a length of the conduit by switching a conduit of the acoustic tube portion to a different route. 2. The speaker device according to 2. 前記駆動側スピーカ振動板は受動側スピーカ振動板よりも小さく、駆動側スピーカ振動板の背面側空間が密閉されていることを特徴とする請求項２記載のスピーカ装置。
3. The speaker device according to claim 2, wherein the driving-side speaker diaphragm is smaller than the passive-side speaker diaphragm, and a space on the back side of the driving-side speaker diaphragm is sealed.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010114612A (en) * 2008-11-06 2010-05-20 Weistech Technology Co Ltd Indicator equipped with small speaker, and small speaker structure
CN115426558A (en) * 2022-09-01 2022-12-02 无锡杰夫电声股份有限公司 Left and right sound channel integrated sound box for computer all-in-one machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010114612A (en) * 2008-11-06 2010-05-20 Weistech Technology Co Ltd Indicator equipped with small speaker, and small speaker structure
CN115426558A (en) * 2022-09-01 2022-12-02 无锡杰夫电声股份有限公司 Left and right sound channel integrated sound box for computer all-in-one machine
CN115426558B (en) * 2022-09-01 2023-11-24 无锡杰夫电声股份有限公司 Left-right sound channel integrated sound box for computer integrated machine

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