JP2014185602A - Intake sound introduction device - Google Patents

Intake sound introduction device Download PDF

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JP2014185602A
JP2014185602A JP2013061942A JP2013061942A JP2014185602A JP 2014185602 A JP2014185602 A JP 2014185602A JP 2013061942 A JP2013061942 A JP 2013061942A JP 2013061942 A JP2013061942 A JP 2013061942A JP 2014185602 A JP2014185602 A JP 2014185602A
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Prior art keywords
intake
sound
vibrating body
introduction device
intake sound
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JP2013061942A
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JP5792760B2 (en
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Tetsuo Takahashi
哲郎 高橋
Kenichi Tsuchiya
健一 土谷
Takashi Seki
崇史 関
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Subaru Corp
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Fuji Heavy Industries Ltd
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Application filed by Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP2013061942A priority Critical patent/JP5792760B2/en
Priority to DE102014204637.8A priority patent/DE102014204637B4/en
Priority to US14/218,453 priority patent/US9429117B2/en
Priority to CN201410111263.XA priority patent/CN104074642B/en
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Publication of JP5792760B2 publication Critical patent/JP5792760B2/en
Priority to US15/224,162 priority patent/US9790903B2/en
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Abstract

PROBLEM TO BE SOLVED: To provide an intake sound introduction device capable of reducing unnecessary noise and transferring preferable sound into a passenger compartment.SOLUTION: An intake sound introduction device 20 introduces intake sound of an engine EG mounted on a vehicle 1 into a passenger compartment 7. The intake sound introduction device 20 includes: a branch pipe 21 branching off from an intake pipe 5 of the engine EG; a sound creator 30 having a vibrating body 33 that vibrates to intake pulsation of the intake sound transferred in the branch pipe 21; a communication pipe 50 providing communication between the inside of a housing 35 of the sound creator 30 and the inside of the passenger compartment 7; and a resonator 60 provided on the communication pipe 50.

Description

本発明は、車両に搭載されたエンジンの吸気音を車室内に導入するための吸気音導入装置に関する。   The present invention relates to an intake sound introduction device for introducing intake sound of an engine mounted on a vehicle into a passenger compartment.

近年、スポーティ感の演出のために車両に搭載されたエンジンの吸気音を車室内に導入する吸気音導入装置が知られている。例えば、特許文献１に記載された吸気音導入装置（文献では車両用吸気音伝達装置）は、エンジンの吸気管から分岐された伝達管と、伝達管の内部に設けられ伝達管内を伝わる吸気音の吸気脈動によって振動する振動体と、伝達管の下流側端部に接続されて通路断面積が上流側から下流側に向かって単調に変化するように係止された共鳴管（文献では共鳴体）とを有して構成されている。   2. Description of the Related Art In recent years, an intake sound introduction device that introduces an intake sound of an engine mounted on a vehicle into a vehicle interior to produce a sporty feeling is known. For example, an intake sound introduction device described in Patent Document 1 (in the literature, an intake sound transmission device for a vehicle) includes a transmission pipe branched from an intake pipe of an engine, and an intake sound that is provided inside the transmission pipe and is transmitted through the transmission pipe. A vibrating body that vibrates due to the intake pulsation, and a resonance pipe that is connected to the downstream end of the transmission pipe and locked so that the cross-sectional area of the passage changes monotonically from the upstream side to the downstream side (in the literature, the resonance body) ).

この吸気音導入装置は、共鳴管によって吸気音を所望の周波数に共鳴させることができ、好ましい音を大きくして車室内に伝達することができる。   The intake sound introduction device can resonate the intake sound at a desired frequency by the resonance tube, and can increase the preferable sound and transmit it to the vehicle interior.

特開２００９−３０４５１号公報JP 2009-30451 A

しかしながら、従来の吸気音導入装置は、吸気音のうち不要な高周波成分の音（例えば、エンジンのバルブ音や高速で伝達される吸気音等）を小さくすることができない。このため、車室内に伝達される吸気音には不要な音が混じり、車室内に好ましい音を伝達することができない虞がある。   However, the conventional intake sound introduction device cannot reduce unnecessary high-frequency component sounds (for example, engine valve sounds, intake sounds transmitted at high speed, etc.) in the intake sounds. For this reason, an unnecessary sound is mixed with the intake sound transmitted to the vehicle interior, and there is a possibility that a preferable sound cannot be transmitted to the vehicle interior.

本発明は、このような問題に鑑みてなされたものであり、不要な音を小さくして車室内に好ましい音を伝達可能な吸気音導入装置を提供することを目的とする。   The present invention has been made in view of such problems, and an object of the present invention is to provide an intake sound introduction device that can reduce unnecessary sounds and transmit a preferable sound to the passenger compartment.

上記目的を達成するために本発明は、車両に搭載されたエンジンの吸気音を車室内に導入する吸気音導入装置であって、エンジンの吸気系から分岐する分岐路と、分岐路における吸気音の吸気脈動によって振動する振動体と、振動体の振動を車室に伝達する通路とを備え、通路に、該通路に連通するレゾネータが設けられていることを特徴とする。   In order to achieve the above object, the present invention provides an intake sound introduction device that introduces an intake sound of an engine mounted on a vehicle into a vehicle interior, and includes a branch path that branches from an intake system of the engine, and an intake sound in the branch path. And a passage for transmitting the vibration of the vibration body to the passenger compartment, and a resonator communicating with the passage is provided in the passage.

また、本発明の通路には、振動体よりも車室側から延びて車室に連通する連通路が設けられ、連通路には、該連通路に連通するレゾネータが設けられていることを特徴とする。   Further, the passage of the present invention is provided with a communication passage that extends from the passenger compartment side to the passenger compartment from the vibrating body, and the communication passage is provided with a resonator that communicates with the communication passage. And

また、本発明は、振動体と、該振動体を囲む筐体とを備えるサウンドクリエータが設けられ、筐体内には、分岐路に連通する導入路と、該導入路の車室側に配置された振動体と、導入路と筐体との間に形成された空間部とが設けられ、レゾネータは、筐体の空間部のうち振動体よりも車室側の空間部に連通して筐体の外側に設けられていることを特徴とする。   Further, the present invention is provided with a sound creator comprising a vibrating body and a casing surrounding the vibrating body, and is disposed in the casing on the side of the cabin of the introducing path that communicates with the branch path. And a space portion formed between the introduction path and the housing, and the resonator communicates with the space portion on the vehicle compartment side of the vibrating body among the space portions of the housing. It is provided in the outer side of.

また、本発明のレゾネータは、吸気音により筐体内に形成される振動の腹に対応する位置に配設されていることを特徴とする。   In addition, the resonator of the present invention is characterized in that it is disposed at a position corresponding to the antinode of vibration formed in the housing by the intake sound.

以上説明したように、本発明に係わる吸気音導入装置によれば、上記特徴を有することで、不要な音を小さくして車室内に好ましい音を伝達可能な吸気音導入装置を提供することができる。   As described above, according to the intake sound introduction device according to the present invention, it is possible to provide an intake sound introduction device that has the above-described characteristics and that can reduce unnecessary sound and transmit a preferable sound to the vehicle interior. it can.

本発明の一実施の形態に係わる吸気音導入装置の側面側の概略構成図を示す。1 is a schematic configuration diagram of a side surface side of an intake sound introduction device according to an embodiment of the present invention. 本発明の他の実施の形態に係わる吸気音導入装置の側面側の概略構成図を示す。The schematic block diagram of the side surface side of the intake sound introduction device concerning other embodiments of the present invention is shown. 筐体に対するレゾネータの取付位置を説明するための説明図を示す。An explanatory view for explaining an attachment position of a resonator to a case is shown.

以下、本発明の吸気音導入装置の好ましい実施の形態を図１〜図３に基づいて説明する。   Hereinafter, a preferred embodiment of an intake sound introduction device of the present invention will be described with reference to FIGS.

吸気音導入装置２０は、図１（概略構成図）に示すように、車両１のエンジン室３内に設けられている。エンジン室３には、エンジンＥＧに燃焼用空気を供給するための吸気管５が、エアクリーナＡＣを介してエンジンＥＧに接続されている。吸気管５の一端部はエンジン室３の前端部に開口して支持され、吸気管５の他端部はエンジンＥＧに接続されている。吸気管５は合成樹脂等により円筒状に形成されている。吸気管５のエアクリーナＡＣよりも車室側５ａには、車両１の車室７内の運転者に吸気音を伝達するための吸気音導入装置２０が接続されている。   The intake sound introduction device 20 is provided in the engine compartment 3 of the vehicle 1 as shown in FIG. 1 (schematic configuration diagram). In the engine chamber 3, an intake pipe 5 for supplying combustion air to the engine EG is connected to the engine EG via an air cleaner AC. One end of the intake pipe 5 is opened and supported at the front end of the engine chamber 3, and the other end of the intake pipe 5 is connected to the engine EG. The intake pipe 5 is formed in a cylindrical shape with synthetic resin or the like. An intake sound introduction device 20 for transmitting the intake sound to the driver in the passenger compartment 7 of the vehicle 1 is connected to the passenger compartment side 5a of the air cleaner AC of the intake pipe 5.

吸気音導入装置２０は、吸気管５から分岐する分岐管２１と、分岐管２１に連通するサウンドクリエータ３０と、サウンドクリエータ３０を介して分岐管２１と車室７内とを連通する連通管５０と、連通管５０に連通して設けられたレゾネータ６０とを有してなる。分岐管２１は、一端部が吸気管５のエアクリーナＡＣよりも車室側５ａに設けられた開口部５ｂに接続され、分岐管２１の他端側が車室７側へ延びた状態でエンジン室３内に配設されている。分岐管２１は合成樹脂等により円筒状に形成されている。   The intake sound introduction device 20 includes a branch pipe 21 branched from the intake pipe 5, a sound creator 30 communicating with the branch pipe 21, and a communication pipe 50 communicating the branch pipe 21 with the interior of the vehicle compartment 7 via the sound creator 30. And a resonator 60 provided in communication with the communication pipe 50. One end of the branch pipe 21 is connected to an opening 5b provided on the vehicle compartment side 5a of the air cleaner AC of the intake pipe 5, and the other end side of the branch pipe 21 extends to the vehicle compartment 7 side. It is arranged in the inside. The branch pipe 21 is formed in a cylindrical shape from synthetic resin or the like.

サウンドクリエータ３０は、分岐管２１の車室側の端部に接続された導入管３１と、導入管３１の車室側の端部に設けられた振動体３３と、導入管３１を囲む筐体３５とを有してなる。振動体３３は、合成樹脂製又はゴム製のシート状の振動膜であり、分岐管２１及び導入管３１内を伝わる吸気音の吸気脈動によって振動する。筐体３５は箱状に形成され、筐体３５の一端側には前側孔部３５ａが設けられ、筐体３５の他端側には後側孔部３５ｂが設けられている。   The sound creator 30 includes an introduction pipe 31 connected to an end of the branch pipe 21 on the passenger compartment side, a vibrating body 33 provided at an end of the introduction pipe 31 on the passenger compartment side, and a casing surrounding the introduction pipe 31. 35. The vibrating body 33 is a synthetic resin or rubber sheet-like vibrating membrane, and vibrates due to the intake air pulsation of the intake sound transmitted through the branch pipe 21 and the introduction pipe 31. The housing 35 is formed in a box shape, and a front hole 35 a is provided on one end side of the housing 35, and a rear hole 35 b is provided on the other end side of the housing 35.

前側孔部３５ａには導入管３１の吸気管側の端部が開口した状態で支持され、導入管３１の車室側の端部は後側孔部３５ｂに対して内側に所定距離を有して対向配置されている。前側孔部３５ａは導入管３１の外側形状と略同じ円形状に形成されて、前側孔部３５ａから音漏れがないように前側孔部３５ａに導入管３１が挿入されている。導入管３１の周りには筐体３５によって囲まれた空間部３７が形成されている。この空間部３７は、振動体３３の振動を音源とする音振動に含まれる複数の周波数が気柱振動によって共鳴可能な大きさを有している。後側孔部３５ｂは振動体３３と略同じ大きさを有して円形状に形成され、振動体３３から発生する吸気脈動を連通管５０に通す。なお、振動体３３の振動を車室７に伝達するための空間部３７及び連通路５０を併せて、以下、通路５１と記す。   The front-side hole portion 35a is supported in a state in which the end portion on the intake pipe side of the introduction pipe 31 is opened, and the end portion on the vehicle interior side of the introduction pipe 31 has a predetermined distance on the inner side with respect to the rear-side hole portion 35b. Are opposed to each other. The front hole portion 35a is formed in a circular shape substantially the same as the outer shape of the introduction tube 31, and the introduction tube 31 is inserted into the front hole portion 35a so that no sound leaks from the front hole portion 35a. A space 37 surrounded by a housing 35 is formed around the introduction pipe 31. The space portion 37 has such a size that a plurality of frequencies included in sound vibration using the vibration of the vibrating body 33 as a sound source can resonate by air column vibration. The rear hole 35b has a circular shape having substantially the same size as the vibrating body 33, and allows intake pulsation generated from the vibrating body 33 to pass through the communication pipe 50. The space portion 37 and the communication passage 50 for transmitting the vibration of the vibrating body 33 to the vehicle compartment 7 are collectively referred to as a passage 51 hereinafter.

通路５１のうち振動体３３よりも車室側の連通管５０には、レゾネータ６０が接続されている。レゾネータ６０は、連通管５０に接続された筒状の首部６１と、首部６１の他端側に接続されて内部に空間部６３ａを有して箱状に形成された胴部６３とを有してなる。レゾネータ６０は、特定の周波数の吸気音がレゾネータ６０にあたると、首部６１の内側の孔６１ａの部分で吸気音の運動が激しくなって摩擦損失し、その周波数を中心とした吸音効果が生じる。本実施例では、レゾネータ６０は、不要な高周波成分の音（例えば、エンジンＥＧのバルブ音や高速で伝達される吸気音等）に対して吸音効果が生じるように形成されている。   A resonator 60 is connected to the communication pipe 50 of the passage 51 closer to the passenger compartment than the vibrating body 33. The resonator 60 includes a cylindrical neck portion 61 connected to the communication pipe 50, and a body portion 63 that is connected to the other end side of the neck portion 61 and has a space 63a therein and is formed in a box shape. It becomes. In the resonator 60, when an intake sound with a specific frequency hits the resonator 60, the motion of the intake sound becomes intense at the portion of the hole 61 a inside the neck 61 and friction loss occurs, and a sound absorption effect centering on the frequency is generated. In the present embodiment, the resonator 60 is formed so as to produce a sound absorbing effect on unnecessary high frequency component sounds (for example, valve sound of the engine EG, intake sound transmitted at high speed, etc.).

このように構成された吸気音導入装置２０は、エンジンＥＧの駆動に伴い吸気管５を通じて外気が吸入されると、エンジンＥＧの回転数に応じた周波数の吸気脈動が吸気管５内に発生する。この吸気脈動は、吸気管５から分岐管２１を通じて振動体２３に伝達される。このため、振動体２３はエンジンＥＧの回転数に応じた周波数で振動する。従って、サウンドクリエータ３０内では振動体２３の振動を音源とする音声振動が生成される。そして、この音声振動のうちの複数の周波数が筐体２５の気柱振動によって共鳴して連通管５０に伝達される。   The intake sound introduction device 20 configured as described above generates an intake pulsation having a frequency corresponding to the rotational speed of the engine EG in the intake pipe 5 when outside air is drawn through the intake pipe 5 as the engine EG is driven. . This intake pulsation is transmitted from the intake pipe 5 to the vibrating body 23 through the branch pipe 21. For this reason, the vibrating body 23 vibrates at a frequency corresponding to the rotational speed of the engine EG. Accordingly, in the sound creator 30, sound vibration is generated using the vibration of the vibrating body 23 as a sound source. A plurality of frequencies of the sound vibration are resonated by the air column vibration of the casing 25 and transmitted to the communication pipe 50.

ここで、連通管５０に伝達された音声振動のうち高周波成分の音は、レゾネータ６０によって吸音される。このため、吸気音のうち不要な高い周波数成分の音、例えば、エンジンＥＧのバルブ音や高速で伝達される吸気音等の音を小さくすることができる。このため、連通管５０から車室７内に伝わる吸気音には、不要な高周波成分の音が含まれないので、車室７内に好ましい吸気音を伝達することができる。また、レゾネータ６０は、不要な高い周波数成分の音を吸音するが、好ましい音の周波数帯には作用しないので、好ましい音の周波数帯の音量が低下することはない。また、レゾネータ６０は共鳴作用によって連通管５０に伝わる吸気音の吸気脈動を増幅化可能に形成されることで、サウンドクリエータ３０の容量を減少させて小型化することができる。   Here, the sound of the high frequency component in the sound vibration transmitted to the communication pipe 50 is absorbed by the resonator 60. For this reason, it is possible to reduce unnecessary high frequency component sounds of the intake sound, for example, sounds such as the valve sound of the engine EG and the intake sound transmitted at high speed. For this reason, since the intake sound transmitted from the communication pipe 50 into the vehicle compartment 7 does not include unnecessary high-frequency component sound, a preferable intake sound can be transmitted into the vehicle compartment 7. The resonator 60 absorbs unnecessary high-frequency component sound, but does not act on the preferred sound frequency band, so the volume of the preferred sound frequency band does not decrease. Further, the resonator 60 is formed so as to be able to amplify the intake pulsation of the intake sound transmitted to the communication pipe 50 by the resonance action, so that the capacity of the sound creator 30 can be reduced and the size can be reduced.

なお、前述した実施例では、サウンドクリエータ３０よりも車室側に接続された連通管５０にレゾネータ６０を設けた場合を示したが、図２に示すように、サウンドクリエータ３０の筐体２５の外側にレゾネータ６０を設けてもよい。筐体２５は、高周波成分の音Ｓｈが筐体２５の空間部２７内で共鳴可能な形状に形成されている。レゾネータ６０は、振動体３３よりも車室側の筐体２５の外側に設けられて筐体２５内の空間部２７に連通している。   In the above-described embodiment, the case where the resonator 60 is provided in the communication pipe 50 connected to the passenger compartment side of the sound creator 30 is shown. However, as shown in FIG. A resonator 60 may be provided outside. The casing 25 is formed in a shape that allows the high frequency component sound Sh to resonate in the space 27 of the casing 25. The resonator 60 is provided outside the casing 25 on the vehicle compartment side of the vibrating body 33 and communicates with the space portion 27 in the casing 25.

レゾネータ６０の筐体２５に対する取付位置を、図３を参照しながら説明する。図３は、例えば、横軸Ｌが筐体２５の音の伝達方向長さを示している。図３に示すように、レゾネータ６０は、共鳴する吸気音Ｓｋの振動の腹ｈに対応する位置に配置される。このため、レゾネータ６０によって共鳴する吸気音Ｓｋを効果的に吸音することができる。   The attachment position of the resonator 60 with respect to the housing 25 will be described with reference to FIG. In FIG. 3, for example, the horizontal axis L indicates the length of sound transmission direction of the housing 25. As shown in FIG. 3, the resonator 60 is arranged at a position corresponding to the antinode h of vibration of the respiring intake sound Sk. For this reason, the intake sound Sk resonated by the resonator 60 can be absorbed effectively.

このため、吸気音のうち不要な高い周波数成分の音、例えば、エンジンＥＧのバルブ音や高速で伝達される吸気音等の音を小さくすることができ、連通管５０を介して車室７内に好ましい吸気音を伝達することができる。   For this reason, it is possible to reduce unnecessary high-frequency component sounds of the intake sound, such as valve sounds of the engine EG and intake sounds transmitted at a high speed, and the interior of the compartment 7 can be reduced via the communication pipe 50. A preferable intake sound can be transmitted.

なお、前述した実施例では、分岐管２１及び連通管５０は断面が円形状に形成されたものを記載したが、これに限るものではなく、三角状、矩形状、多角形状のいずれかでもよい。   In the above-described embodiment, the branch pipe 21 and the communication pipe 50 are described as having a circular cross section. However, the present invention is not limited to this, and may be any one of a triangular shape, a rectangular shape, and a polygonal shape. .

１ 車両
５ 吸気管（吸気系）
７ 車室
２０ 吸気音導入装置
２１ 分岐管（分岐路）
３０ サウンドクリエータ
３３ 振動体
３５ 筐体
３７ 空間部（通路）
５０ 連通管（通路）
５１ 通路
６０ レゾネータ
ＥＧ エンジン
ＡＣ エアクリーナ（吸気系） 1 Vehicle 5 Intake pipe (intake system)
7 Car compartment 20 Air intake sound introduction device 21 Branch pipe (branch path)
30 Sound Creator 33 Vibrating Body 35 Housing 37 Space (Passage)
50 communication pipe (passage)
51 passage 60 resonator EG engine AC air cleaner (intake system)

Claims (4)

車両に搭載されたエンジンの吸気音を車室内に導入する吸気音導入装置であって、
前記エンジンの前記吸気系から分岐する分岐路と、
前記分岐路における吸気音の吸気脈動によって振動する振動体と、
前記振動体の振動を前記車室に伝達する通路とを備え、
前記通路に、該通路に連通するレゾネータが設けられている
ことを特徴とする吸気音導入装置。 An intake sound introduction device for introducing intake sound of an engine mounted on a vehicle into a vehicle interior,
A branch path branched from the intake system of the engine;
A vibrating body that vibrates due to the intake pulsation of the intake sound in the branch path;
A passage for transmitting vibration of the vibrating body to the passenger compartment,
An intake sound introduction device, wherein the passage is provided with a resonator communicating with the passage. 前記通路には、前記振動体よりも車室側から延びて前記車室に連通する連通路が設けられ、
前記連通路には、該連通路に連通する前記レゾネータが設けられている
ことを特徴とする請求項１に記載の吸気音導入装置。 The passage is provided with a communication passage that extends from the passenger compartment side of the vibrating body and communicates with the passenger compartment.
The intake sound introduction device according to claim 1, wherein the resonator is provided in the communication path so as to communicate with the communication path. 前記振動体と、該振動体を囲む筐体とを備えるサウンドクリエータが設けられ、
前記筐体内には、前記分岐路に連通する導入路と、該導入路の車室側に配置された前記振動体と、前記導入路と前記筐体との間に形成された空間部とが設けられ、
前記レゾネータは、前記筐体の前記空間部のうち前記振動体よりも車室側の空間部に連通して前記筐体の外側に設けられている
ことを特徴とする請求項１に記載の吸気音導入装置。 A sound creator comprising the vibrating body and a casing surrounding the vibrating body;
In the casing, there are an introduction path communicating with the branch path, the vibrating body arranged on the cabin side of the introduction path, and a space portion formed between the introduction path and the casing. Provided,
2. The air intake according to claim 1, wherein the resonator communicates with a space portion closer to a passenger compartment than the vibrating body in the space portion of the housing and is provided outside the housing. Sound introduction device. 前記レゾネータは、吸気音により前記筐体内に形成される振動の腹に対応する位置に配設されている
ことを特徴とする請求項３に記載の吸気音導入装置。 The intake sound introduction device according to claim 3, wherein the resonator is disposed at a position corresponding to an antinode of vibration formed in the housing by the intake sound.
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US14/218,453 US9429117B2 (en) 2013-03-25 2014-03-18 Intake sound introducing apparatus
CN201410111263.XA CN104074642B (en) 2013-03-25 2014-03-24 Intake sound introducing apparatus
US15/224,162 US9790903B2 (en) 2013-03-25 2016-07-29 Intake sound introducing apparatus

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