JP2016161605A - Method for attaching vehicle sound source member - Google Patents

Method for attaching vehicle sound source member Download PDF

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JP2016161605A
JP2016161605A JP2015037562A JP2015037562A JP2016161605A JP 2016161605 A JP2016161605 A JP 2016161605A JP 2015037562 A JP2015037562 A JP 2015037562A JP 2015037562 A JP2015037562 A JP 2015037562A JP 2016161605 A JP2016161605 A JP 2016161605A
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sound source
signal
sound
speaker
vibration
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JP6330695B2 (en
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太郎 磯貝
Taro Isogai
太郎 磯貝
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Toyoda Gosei Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a method for attaching such a sound source member as a sound source of a speaker or a speaker grille that may vibrate by the influence of the sound source, the method having the same structure as before but allowing easy prevention of such vibrating sound as chattering noise through electric adjustment.SOLUTION: The present invention includes: a sound source generating music or signal sounds or a sound source member near a sound source, which vibrates by influence of the sound source; an attachment member to which the sound source member is attached; a vibration adjusting member between the sound source member and the attachment member; an amplifier circuit inputting signals to the sound source and generating sound; a signal converter converting the signals from the amplifier circuit; and a vibration adjusting member receiving input of the signals from the signal converter.SELECTED DRAWING: Figure 1

Description

本発明は、車両に取付けられるスピーカー等の音源やこの音源の近傍に設けられ音源の影響により振動する音源部材の取付方法に関するものである。   The present invention relates to a sound source such as a speaker attached to a vehicle and a method of attaching a sound source member provided in the vicinity of the sound source and vibrating under the influence of the sound source.

特許文献１に示めされているように、車両におけるスピーカー付き内装構造において、ビレ音等の振動音を防止するための構造が提案されている。この構造は、車両用内装１０の内装本体１１にスピーカー穴１２を設け、その周縁に環状のグリルフレーム３０を設ける。このグリルフレーム３０の保持部３４にてスピーカーグリル２３を保持する。グリルフレーム３０の硬質の芯層３１の表側面に軟質の表面層３２を一体に積層する。芯層３１の裏面３３ｂを内装本体１１から表側に離す。表面層３２の周側部３２ｅ，３２ｆのうち少なくとも外周側部３２ｅを裏面３３ｂよりも内装本体１１の側に突出させて内装本体１１に当接する。
上記構成により、車両におけるスピーカーグリル付き内装構造において、コストの上昇を抑え、かつ見映えを損なわないようにしながら、スピーカー音に起因するビレ音等の振動音が発生するのを防止することができる。
このように、音源やこの音源の影響により振動を発生する音源であるスピーカーや、スピーカーグリル等の音源部材のビレ音等の振動音を防止するための音源部材の取付け方法に関しては、色々な提案がされている。 As shown in Patent Document 1, a structure for preventing vibration sound such as a cracking sound has been proposed in an interior structure with a speaker in a vehicle. In this structure, the speaker hole 12 is provided in the interior body 11 of the vehicle interior 10, and the annular grill frame 30 is provided on the periphery thereof. The speaker grille 23 is held by the holding portion 34 of the grill frame 30. A soft surface layer 32 is integrally laminated on the front side surface of the hard core layer 31 of the grill frame 30. The back surface 33b of the core layer 31 is separated from the interior main body 11 to the front side. Of the peripheral side portions 32e and 32f of the surface layer 32, at least the outer peripheral side portion 32e protrudes toward the interior main body 11 with respect to the back surface 33b and comes into contact with the interior main body 11.
With the above configuration, in an interior structure with a speaker grill in a vehicle, it is possible to prevent the generation of vibration sound such as a cracking sound caused by the speaker sound while suppressing an increase in cost and not impairing the appearance. .
As described above, there are various proposals regarding the mounting method of the sound source member for preventing the vibration sound such as the sound of the sound source and the sound source member such as the speaker grill and the sound source member that generates vibration due to the influence of the sound source. Has been.

特開2014-151803公報JP 2014-151803 JP 特開2008-12993公報JP2008-12993 特開2005-204198公報JP 2005-204198 A

このような、スピーカー等の音源や、これらの影響を受けて振動する可能性のあるスピーカーグルル等の音源部材の取付構造は、部材により構成を最適化（構造設計による試作・調整）が必要となったり、色々な組合せで組み付けを行い評価する必要が有るなど多大の工数と費用がかかっていた。
また、使用条件、環境、また音域によりその設定は変化するため、どの条件にも適合する設計を行うことは極めて困難であった。
そこで本発明の目的は、スピーカー等の音源や、これらの影響により振動する可能性のあるスピーカーグリルなどの音源部材の取付構造に関して、基本的な構成は同一で、電気的な調整により簡単にビレ音等の振動音を防止できる取付け方法を提供することにある。 The structure of the sound source such as a speaker and the sound source member such as a speaker guru that may vibrate under the influence of the sound source needs to be optimized (prototyping and adjustment by structural design). It took a lot of man-hours and costs, such as having to be assembled and evaluated in various combinations.
In addition, since the setting changes depending on the use conditions, environment, and sound range, it has been extremely difficult to design to suit any conditions.
Therefore, the object of the present invention is the same for the sound source such as a speaker and the mounting structure of a sound source member such as a speaker grill that may vibrate due to the influence of the sound source. An object of the present invention is to provide an attachment method capable of preventing vibration noise such as sound.

本発明は、音楽や信号音を発する音源又は該音源の近傍に設けられ音源の影響により振動する音源部材と、音源源部材が取付けられる被取付部材と、音源部材と被取付部材間に設けられる振動調整部材と、音源に信号を入力し音を発生させるアンプ回路と
アンプ回路からの信号を変換する信号変換回路とを有し、信号変換回路からの信号を振動調整部材に入力する構成としたことを特徴とする。 The present invention provides a sound source that emits music or signal sound, a sound source member that is provided near the sound source and vibrates due to the influence of the sound source, a mounted member to which the sound source member is mounted, and a sound source member and a mounted member. A vibration adjustment member, an amplifier circuit that inputs a signal to a sound source to generate sound, and a signal conversion circuit that converts a signal from the amplifier circuit, and a signal that is input from the signal conversion circuit to the vibration adjustment member It is characterized by that.

上記の構成を有する構成により、音源への信号を信号変換回路に入力し、音源の信号を打ち消すような信号に変換し振動調整部材を駆動することにより、音源部材から被取付部材に伝達される振動を低減させ、ビレ音等の振動音を防止することができる。   With the configuration having the above-described configuration, a signal to the sound source is input to the signal conversion circuit, converted into a signal that cancels the signal of the sound source, and driven by the vibration adjustment member, and transmitted from the sound source member to the mounted member. It is possible to reduce vibration and prevent vibration noise such as crackling noise.

振動調整部材は、少なくとも対向する一対の可撓性電極に誘電弾性体を挟んだ構成を有すものであることを特徴とする。   The vibration adjusting member has a configuration in which a dielectric elastic body is sandwiched between at least a pair of opposing flexible electrodes.

上記の構成により、音源と取付部材間に振動調整部材を挟んで取付けることができ容易に組付けることができる。   According to the above configuration, the vibration adjusting member can be mounted between the sound source and the mounting member and can be easily assembled.

本発明によれば、音源への信号を信号変換回路に入力し、音源の信号を打ち消すような信号に変換し振動調整部材を駆動することにより、音源部材から被取付部材に伝達される振動を低減させ、ビレ音等の振動音を防止することができる。   According to the present invention, the vibration transmitted from the sound source member to the mounted member is generated by inputting the signal to the sound source to the signal conversion circuit, converting the signal to the signal to cancel the sound source signal, and driving the vibration adjusting member. It is possible to reduce and prevent vibration noise such as crackling noise.

本発明の一実施例に係る車両用音源部材としてのスピーカーの取付方法を示す模式図である。It is a schematic diagram which shows the attachment method of the speaker as a sound source member for vehicles which concerns on one Example of this invention. 本発明の一実施例に係るスピーカーへの信号音と、振動調整部材に入力される信号を示す模式図である。It is a schematic diagram which shows the signal sound to the speaker which concerns on one Example of this invention, and the signal input into a vibration adjustment member. 本発明の一実施例に係る振動調整部材の構造を示す模式図である。It is a schematic diagram which shows the structure of the vibration adjustment member which concerns on one Example of this invention.

以下、本発明の構成を図面に示す実施の形態の一例に基づいて詳細に説明する。図１から図３に本発明に係る車両用音源部材の取付方法の実施形態を示す。
図１に、本発明の一実施例に係る車両用音源部材としてのスピーカーの取付方法を示す。
この構成は、オーディオアンプ１からの信号が音源部材としてのスピーカー２に入力されオーディオアンプ１からの信号が音声として出力され、乗員が音楽等を鑑賞することができる。また、このオーディオアンプ１からの信号は、信号変換回路としての駆動回路４に接続される。そして、駆動回路４からの出力は、振動調整部材としての誘電アクチュエータ５に接続されている。 Hereinafter, the configuration of the present invention will be described in detail based on an example of an embodiment shown in the drawings. 1 to 3 show an embodiment of a mounting method of a vehicle sound source member according to the present invention.
FIG. 1 shows a method of attaching a speaker as a vehicle sound source member according to an embodiment of the present invention.
In this configuration, a signal from the audio amplifier 1 is input to a speaker 2 as a sound source member, a signal from the audio amplifier 1 is output as sound, and a passenger can appreciate music and the like. The signal from the audio amplifier 1 is connected to a drive circuit 4 as a signal conversion circuit. The output from the drive circuit 4 is connected to a dielectric actuator 5 as a vibration adjusting member.

このスピーカー２は、誘電アクチュエータ５を介して、被取付部材としてのドアパネルに固定されている。なお、図１は、スピーカー２をドアパネル３に誘電アクチュエータ５を介して固定される構成を模式的に示している。本件実施例はスピーカー２の後端を誘電アクチュエータ５に固定する構造となっているが、特許文献１と同様に、スピーカー２の前端側の周囲に誘電アクチュエータ５を設け、この誘電アクチュエータ５を介してドアパネル３に取付ける構成としても良い。     The speaker 2 is fixed to a door panel as a member to be attached via a dielectric actuator 5. FIG. 1 schematically shows a configuration in which the speaker 2 is fixed to the door panel 3 via a dielectric actuator 5. The present embodiment has a structure in which the rear end of the speaker 2 is fixed to the dielectric actuator 5. Like the patent document 1, the dielectric actuator 5 is provided around the front end side of the speaker 2, and the dielectric actuator 5 is interposed therebetween. It is good also as a structure attached to the door panel 3.

この駆動回路４から誘電アクチュエータ５に入力される信号は、図２に示すようにオーディオアンプ１の出力波形の振幅の大きさに応じた波形を有している。本件実施例では、オーディオアンプ１からの出力で、略最大値を最大電圧としている。
オーディオアンプ１からの出力の振幅が大きい程音が大きくなる。そして、駆動回路４からの出力は、音（振幅）が大きい程電圧が高く成るようになっており、この電圧のより、誘電アクチュエータ５は電圧が高い程その厚さが薄くなる。このような波形を入力することによりスピーカー２からの振動を吸収し、一定以上低減することによりドアパネル３のビレ音等の発生を防止することができる。 The signal input from the drive circuit 4 to the dielectric actuator 5 has a waveform corresponding to the amplitude of the output waveform of the audio amplifier 1 as shown in FIG. In this embodiment, the maximum voltage is set to the maximum voltage in the output from the audio amplifier 1.
The sound becomes louder as the amplitude of the output from the audio amplifier 1 becomes larger. The output from the drive circuit 4 is such that the voltage increases as the sound (amplitude) increases, and the thickness of the dielectric actuator 5 decreases as the voltage increases. By inputting such a waveform, the vibration from the speaker 2 is absorbed, and by reducing the vibration more than a certain level, it is possible to prevent the occurrence of a beeping sound of the door panel 3.

次に、本件実施例に用いた誘電アクチュエータ５の基本構成示す概念的な構成を、図３により説明する。（多層構成は省略）
この誘電アクチュエータ５は、誘電弾性体としての複数の誘電ゴム層（誘電エラストマ層）７と可撓性電極としての複数の導電ゴム層６（６ａ，６ｂ）とを厚さ方向（矢印Ｙ１方向）に交互に重ね合わせることによって形成されている。このため、誘電アクチュエータ５の誘電エラストマ層７における表裏両面には、それぞれ導電ゴム層６（６ａ，６ｂ）が設けられることとなる。 Next, a conceptual configuration showing the basic configuration of the dielectric actuator 5 used in this embodiment will be described with reference to FIG. (Multi-layer configuration is omitted)
This dielectric actuator 5 includes a plurality of dielectric rubber layers (dielectric elastomer layers) 7 as dielectric elastic bodies and a plurality of conductive rubber layers 6 (6a, 6b) as flexible electrodes in the thickness direction (arrow Y1 direction). It is formed by alternately superimposing. For this reason, the conductive rubber layers 6 (6a, 6b) are provided on the front and back surfaces of the dielectric elastomer layer 7 of the dielectric actuator 5, respectively.

誘電アクチュエータ５において、導電ゴム層６は汎用ゴム等によって形成されており、誘電エラストマ層５は架橋点の動く高分子化合物（高分子ゲル等）によって、より詳しくはポリロタキサン等によって形成されている。また、誘電エラストマ層７を表裏両面から挟んだ状態となる導電ゴム層６ａ，６ｂのうち、導電ゴム層６ａは電源８の陽極に接続されており、導電ゴム層６ｂは電源８の陰極に接続されている。そして、導電ゴム層６ａ，６ｂに対する電圧印可を行うと、誘電エラストマ層７は、厚さ方向（矢印Ｙ１方向）に縮むとともに、その厚さ方向と直交する方向（矢印Ｙ２方向や矢印Ｙ３方向）に伸びる。また、導電ゴム層６ａ，６ｂに対する上記電圧印可を解除すると、誘電エラストマ層７は、その弾性により誘電エラストマ層７の厚さ方向への縮み及び同厚さ方向と直交する方向についての伸びが解除される。 In the dielectric actuator 5, the conductive rubber layer 6 is made of general-purpose rubber or the like, and the dielectric elastomer layer 5 is made of a polymer compound (polymer gel or the like) whose crosslink point moves, more specifically, polyrotaxane or the like. Of the conductive rubber layers 6a and 6b in which the dielectric elastomer layer 7 is sandwiched from both the front and back surfaces, the conductive rubber layer 6a is connected to the anode of the power source 8, and the conductive rubber layer 6b is connected to the cathode of the power source 8. Has been. When a voltage is applied to the conductive rubber layers 6a and 6b, the dielectric elastomer layer 7 shrinks in the thickness direction (arrow Y1 direction) and is orthogonal to the thickness direction (arrow Y2 direction or arrow Y3 direction). To grow. When the voltage application to the conductive rubber layers 6a and 6b is released, the dielectric elastomer layer 7 is released from contracting in the thickness direction and extending in the direction perpendicular to the thickness direction due to its elasticity. Is done.

上記の様な構成により、誘電アクチュエータ５は弾性率が印加される電圧によって変化し、スピーカー２からの振動が吸収され、一定以上低減される。従ってこの誘電アクチュエータを介して取付けられたドアパネル３にほとんど振動が伝達されず、ビレ音等の振動音を発することはない。   With the configuration as described above, the dielectric actuator 5 changes in elasticity according to the applied voltage, and the vibration from the speaker 2 is absorbed and reduced to a certain level or more. Accordingly, vibration is hardly transmitted to the door panel 3 attached via the dielectric actuator, and vibration sound such as a cracking sound is not generated.

上記実施例では、スピーカー２を音源としてその取付方法について説明を行ったが、スピーカー２近傍に設けられこのスピーカー２の音により振動する部材として、スピーカーグリルの取付方法に応用することも可能である。また、その他のスピーカー周囲に設けられる部材の取付方法に適用することも可能である。   In the above embodiment, the speaker 2 is used as a sound source, and the mounting method thereof has been described. However, the member provided near the speaker 2 and vibrated by the sound of the speaker 2 can also be applied to the speaker grill mounting method. . Moreover, it is also possible to apply to the attachment method of the member provided around other speakers.

この場合は、音源部材としてのスピーカーグリルを、誘電アクチュエータを介しドアトリムに取付け事により、スピーカーグリルからの振動をドアトリムにほとんど伝達することなくすることができ、これら部材に発生するビレ音などの振動を抑制することができる。   In this case, the speaker grill as a sound source member is attached to the door trim via a dielectric actuator, so that vibration from the speaker grill can be hardly transmitted to the door trim. Can be suppressed.

このように、車両内部に設けられるスピーカー等の音源部材や、この音源からの影響により音源となりうるドアトリム等の音源部材が、これらが取付けられる被取付部材に振動を伝達することなく取付けることができる。   In this way, a sound source member such as a speaker provided inside the vehicle, or a sound source member such as a door trim that can be a sound source due to the influence of the sound source can be attached without transmitting vibrations to the attached member to which they are attached. .

上記実施例では、音源信号の波形の振幅に応じ誘電アクチュエータに入力する電圧を調整していたが、音源信号の波形をフーリエ解析したり、音源部材や被取付部材等の物理的な特性に応じ、誘電アクチュエータに入力する信号を更に加工・調整する様にしても良い。   In the above embodiment, the voltage input to the dielectric actuator is adjusted according to the amplitude of the waveform of the sound source signal. However, the waveform of the sound source signal is subjected to Fourier analysis or according to the physical characteristics of the sound source member or the attached member. The signal input to the dielectric actuator may be further processed and adjusted.

本実施形態では車両のドアパネルに取付けられるスピーカーの取付構造に適用したが、車両内の設けられる音源や、この音源の近傍に設けられこの音源により振動し音源となりうる音源部材の取付方法に適用できると共に、航空機や船舶などの音響用のスピーカーや家に組み付けられるお音響用のスピーカーに適用することもできる。
また、 In this embodiment, the present invention is applied to a speaker mounting structure that is mounted on a vehicle door panel. However, the present invention can be applied to a sound source provided in a vehicle or a sound source member that is provided in the vicinity of the sound source and can vibrate by the sound source to be a sound source. At the same time, the present invention can be applied to an acoustic speaker for an aircraft or a ship or an acoustic speaker to be assembled in a house.
Also,

１ オーディオアンプ（アンプ回路）
２ スピーカー（音源部材）
３ ドアパネル（被取付け部材）
４ 駆動回路（信号変換回路）
５ 誘電アクチュエータ（振動調整部材）
６ 導電ゴム層（可撓性電極）
６ａ 導電ゴム層（可撓性電極）
６ｂ 導電ゴム層（可撓性電極）
７ 誘電エラストマ層（誘電弾性体）
８ 電源
Y１ 厚さ方向
Y２ 厚さ方向と直行する方向
Y３ 厚さ方向と直行する方向 1 Audio amplifier (amplifier circuit)
2 Speaker (sound source material)
3 Door panel (attached member)
4 Drive circuit (signal conversion circuit)
5 Dielectric actuator (vibration adjusting member)
6 Conductive rubber layer (flexible electrode)
6a Conductive rubber layer (flexible electrode)
6b Conductive rubber layer (flexible electrode)
7 Dielectric elastomer layer (dielectric elastic body)
8 Power supply
Y1 Thickness direction
Y2 direction perpendicular to thickness direction
Y3 direction perpendicular to the thickness direction

Claims (3)

音楽や信号音を発する音源又は該音源の近傍に設けられ音源の影響により振動する音源部材と、
前記音源部材が取付けられる被取付部材と、
前記音源部材と前記被取付部材間に設けられる振動調整部材と、
前記音源に信号を入力し音を発生させるアンプ回路と、
前記アンプ回路からの信号を変換する信号変換回路とを有し、
前記信号変換回路からの信号を前記振動調整部材に入力する構成としたことを特徴とする車両用音源部材の取付方法。 A sound source that emits music or signal sound or a sound source member that vibrates due to the influence of the sound source provided in the vicinity of the sound source;
A mounted member to which the sound source member is mounted;
A vibration adjusting member provided between the sound source member and the attached member;
An amplifier circuit for generating a sound by inputting a signal to the sound source;
A signal conversion circuit for converting a signal from the amplifier circuit;
A mounting method for a sound source member for a vehicle, wherein a signal from the signal conversion circuit is input to the vibration adjusting member. 前記信号変換回路からの信号は、前記アンプ回路からの信号を振幅に応じ印加電圧を変化させたことを特徴とする請求項１に記載の車両用音源部材の取付方法。   The method for mounting a sound source member for a vehicle according to claim 1, wherein the signal from the signal conversion circuit changes a voltage applied to the signal from the amplifier circuit in accordance with an amplitude. 前記振動調整部材は、少なくとも対向する一対の可撓性電極に誘電弾性体を挟んだ構成を有すものであることを特徴とする請求項１または請求項２に記載の車両用音源部材の取付方法。   The attachment of the sound source member for a vehicle according to claim 1 or 2, wherein the vibration adjusting member has a configuration in which a dielectric elastic body is sandwiched between at least a pair of opposing flexible electrodes. Method.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110007701A (en) * 2019-05-09 2019-07-12 广州小鹏汽车科技有限公司 Control method and device of vehicle-mounted equipment, vehicle and storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0872623A (en) * 1994-09-06 1996-03-19 Suzuki Motor Corp Fitting structure of speaker for vehicle
JP2008178133A (en) * 2006-11-01 2008-07-31 Kazumitsu Imai Recoilless speaker system and unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0872623A (en) * 1994-09-06 1996-03-19 Suzuki Motor Corp Fitting structure of speaker for vehicle
JP2008178133A (en) * 2006-11-01 2008-07-31 Kazumitsu Imai Recoilless speaker system and unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110007701A (en) * 2019-05-09 2019-07-12 广州小鹏汽车科技有限公司 Control method and device of vehicle-mounted equipment, vehicle and storage medium

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