WO2012123987A1 - In-vehicle audio device - Google Patents
In-vehicle audio device Download PDFInfo
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- WO2012123987A1 WO2012123987A1 PCT/JP2011/001497 JP2011001497W WO2012123987A1 WO 2012123987 A1 WO2012123987 A1 WO 2012123987A1 JP 2011001497 W JP2011001497 W JP 2011001497W WO 2012123987 A1 WO2012123987 A1 WO 2012123987A1
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- type speaker
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
Definitions
- the present invention is an acoustic device that is mounted in an automobile, and has a built-in vibration type speaker in the housing and has sound holes on the outer front surface and the upper or lower surface of the housing.
- a conventional acoustic device has a sound hole only on the upper surface (see Patent Document 1). Since this acoustic device has a built-in vibration type speaker having a cone type diaphragm that can output from the high range to the low range, the vibration type speaker is arranged so as to face the upper surface, so that a larger vibration type speaker can be built in. It is configured.
- the sound hole is provided only on the upper surface facing the vibration type speaker, the sound wave emitted from the rear surface of the diaphragm remains in the casing. For this reason, the air resistance is increased, and it is difficult to emit a sound wave in the low frequency range.
- the diaphragm generates sound waves by vibrating the air by the vibration of the sound wave generator. Therefore, when outputting the same sound wave wavelength, the sound wave wavelength is opposite to the normal phase on the front and back sides of the diaphragm. That is, when the normal phase and reverse phase wavelengths coexist in the housing, the wavelengths interfere with each other and cancel each other, resulting in a weakening of the sound wave output from the acoustic device.
- An object of the present invention is to reduce the resistance of air remaining in the casing and to prevent a decrease in sound wave output due to cancellation of normal and reverse phase sound waves emitted from the diaphragm.
- the acoustic device of the present invention emits sound waves from the first sound hole provided in the housing in response to vibration of the vibration type speaker, and secondly provides sound waves emitted from the back surface of the vibration type speaker on the operation panel. It is emitted from the sound hole.
- the vibration type by providing sound holes on the upper surface or the lower surface and the side surface of the acoustic device, the vibration type so that the sound waves of the normal phase and the reverse phase emitted from the diaphragm of the vibration type speaker are not canceled in the casing. It is possible to output from the speaker and prevent a decrease in the output of the sound wave including the bass region.
- FIG. 1 The perspective view of the audio equipment in Embodiment 1 of the present invention.
- Front view of an acoustic device according to Embodiment 2 of the present invention Rear view Top view Bottom view Same side view Same left side view CC sectional view of FIG.
- Embodiment 1 an in-vehicle acoustic device according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 12.
- FIG. 1 to 7 show a perspective view, a front view, a rear view, a top view, a bottom view, a right side view, and a left side view of the acoustic device according to Embodiment 1 of the present invention, respectively.
- FIG. 8 shows a cross-sectional view taken along line AA shown in FIG.
- the vibration type speaker 20 of the acoustic device 1 includes a sound wave generation unit 23 including a magnet unit 21 and a voice coil unit 22, and a cone type vibration plate that is connected to the sound wave generation unit 23 and transmits sound waves to the outside. 24 is integrally formed. An edge portion 25 is provided on the outer peripheral portion of the cone-shaped diaphragm 24.
- the substrate 30 has a hole 31 for holding the sound wave generator 23 of the vibration type speaker 20 and is electrically connected to the vibration type speaker 20.
- the acoustic device 1 has a housing 40 that covers the vibration speaker 20 side held by the substrate 30 and the diaphragm 24 of the vibration speaker 20.
- the housing 40 has an opening (not shown) on one side surface, and has a first sound hole 41 on the upper surface.
- the first sound hole 41 of the housing 40 has substantially the same size as the diameter of the vibration type speaker 20 on the upper surface, and allows sound waves generated from the vibration type speaker 20 to pass through.
- the first sound hole 41 has a mesh structure or a slit structure, and facilitates the passage of sound waves.
- a protrusion 42 is provided on the outer periphery of the first sound hole 41 inside the housing 40 from the inner upper surface toward the lower surface.
- the housing 40 is made of resin in order to prevent resonance with sound waves.
- the acoustic device 1 has an operation panel 50 attached to the opening of the housing 40.
- the operation panel 50 has second sound holes 51 through which sound waves of the vibration type speaker 20 pass.
- the acoustic device 1 also includes a volume knob 52 for adjusting the volume, an operation button 53, and a display panel 54 for displaying a radio channel name and the like. Therefore, the audio apparatus 1 can change the radio broadcast channel for output or change the volume.
- the sound source of the audio device 1 is not limited to the one based on the radio broadcast, but may be one based on a flash memory 60, a CD, or a DVD described later.
- FIG. 9 shows a cross-sectional view taken along the line BB shown in FIG. A method of outputting sound waves from the vibration type speaker 20 will be described with reference to the sectional view of FIG.
- the vibration type speaker 20 faces the upper surface of the housing 40, and the edge portion 25 of the cone-shaped diaphragm 24 and the protrusion 42 disposed on the inner upper surface of the housing 40 are in contact with each other. For this reason, sound waves emitted from the front of the vibration type speaker 20 are output through the first sound hole 41 on the upper surface of the housing 40. On the other hand, sound waves emitted from the back surface of the cone-shaped diaphragm 24 are output through the second sound hole 51 of the operation panel 50 arranged on the front surface of the acoustic device 1.
- FIG. 10 is a diagram showing an overview when the audio device 1 is incorporated in the center console inside the vehicle. Only the operation panel 50 of the sound device 1 protrudes from the front surface. The driver can change the radio channel and adjust the volume by operating the volume knob 52 and the operation button 53 on the operation panel 50.
- the acoustic device 1 Since the acoustic device 1 is incorporated in the center console in the vehicle, the sound wave output from the upper surface of the acoustic device 1 hits an in-vehicle device such as an air conditioner disposed on the center console and is absorbed or dispersed. On the other hand, since the sound wave emitted from the back side of the cone-shaped diaphragm 24 is output through the second sound hole 51 of the operation panel 50, the output sound wave directly reaches the person on board.
- an in-vehicle device such as an air conditioner disposed on the center console
- the air resistance in the housing 40 can be reduced, and the cone type vibration of the vibration type speaker 20 can be reduced. It is possible to prevent interference between normal and reverse sound waves emitted from the front and back of the plate 24. For this reason, it is possible to output sound waves that are easy to hear for a person on board without lowering the output of the sound source.
- FIG. 11 is a perspective view when the operation panel 50 of the audio device 1 is removed. As shown in FIG. 11, the operation panel 50 can be removed from the housing 40.
- FIG. 12 is a perspective view of the operation panel 50 when viewed from behind.
- an insertion port 70 may be provided so that an auxiliary storage device such as a flash memory 60 can be connected to the back of the operation panel 50.
- the operation panel 50 can be connected to the audio device 1 with the flash memory 60 inserted and connected to the insertion port 70.
- the flash memory 60 can be connected without deteriorating the appearance of the operation panel 50. Then, music or the like stored in the flash memory 60 can be reproduced by the acoustic device 1.
- FIGS. 13 to 18 show a front view, a rear view, a top view, a bottom view, a right side view, and a left side view of the acoustic device according to Embodiment 2 of the present invention, respectively. Further, FIG. 19 shows a cross-sectional view of the CC line shown in FIG. 13 taken perpendicularly.
- the acoustic device 110 has a housing 140 that covers the vibration speaker 120 side and the diaphragm 124 of the vibration speaker 120 held by the substrate 130.
- the housing 140 has an opening (not shown) on one side surface and a first sound hole 141 on the bottom surface.
- a sound wave is emitted from the first sound hole 141 (the bottom surface of the acoustic device 110) of the housing 140 according to the vibration of the vibration type speaker 120, and the sound wave emitted from the back surface of the vibration type speaker 120 is 150 is emitted from the second sound hole 151 provided at 150.
- the first sound hole 141 having the same size as the diameter of the vibration type speaker 120 is provided on the bottom surface of the casing 140, the direction of the vibration type speaker 120 according to the first embodiment of the present invention is reversed. It has an arranged structure.
- the sound wave output from the bottom surface of the sound device 110 is built into the center console as shown in FIG. 20, so that the sound wave hits an in-vehicle device such as an air conditioner disposed on the center console. Absorbed or dispersed. Since the sound holes are sufficiently secured as in the first embodiment, the air resistance in the housing 140 can be reduced, and the front and back of the cone-type diaphragm 124 of the vibration type speaker 120 can be reduced. It is possible to prevent normal phase and reverse phase interference. For this reason, it is possible to output sound waves that are easy to hear for a person on board without lowering the output of the sound source.
- the acoustic device 110 in which the vibration type speaker 120 faces the bottom as in the second embodiment is different from the acoustic device 1 in the first embodiment.
- interference between the normal phase and the reverse phase emitted from the front and back of the cone-shaped diaphragm 124 can be prevented. Therefore, the sound wave output from the second sound hole 151 of the operation panel 150 can reduce the influence of interference caused by the sound wave of the opposite phase emitted from the vibration type speaker 120, and the sound wave that is easy to hear for the person on board. Can be provided.
- FIG. 21 is a perspective view of the acoustic device 110 according to the second embodiment of the present invention.
- the operation panel 150 cannot be removed from the acoustic device 110.
- an insertion port 170 to which the flash memory 160 can be connected can be provided on the side surface of the raised portion 180 where the operation panel 150 is raised.
- the insertion port 170 may be arranged so as to face the right side surface or the left side surface of the audio device 110, and when the flash memory 160 is inserted, the flash memory 160 may be connected to the front surface of the audio device 110 so that it does not pop out. it can.
- This configuration prevents the flash memory 160 from interfering with the operation when the driver operates the operation panel 150.
- the acoustic device according to the present invention is useful as an acoustic device that can be incorporated into the center console of a vehicle.
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Abstract
Provided is an in-vehicle audio device such that resistance from air trapped in the casing is reduced, and reduction in sound wave output due to mutual cancellation of sound waves of normal and reverse phases generated from the diaphragm is prevented. The audio device (1) emits sound waves from a first sound hole (41) located in the casing (40) in accordance with the vibration of the vibration type speaker (20), as well as emits sound waves emanating from the back of the vibration type speaker (20) from a second sound hole (51) located in an operating panel (50).
Description
本発明は、特に自動車に搭載され、筐体の内部に振動型スピーカを内蔵して外部前面と筐体の上面または下面に音孔を設けた音響装置である。
The present invention is an acoustic device that is mounted in an automobile, and has a built-in vibration type speaker in the housing and has sound holes on the outer front surface and the upper or lower surface of the housing.
従来の音響装置は、上面にのみ音孔が設けられている（特許文献１参照）。この音響装置では、高音域から低音域までを出力できるコーン型振動板を有する振動型スピーカを内蔵するため、振動型スピーカが上面を向くように配置し、より大きな振動型スピーカを内蔵できるように構成されている。
A conventional acoustic device has a sound hole only on the upper surface (see Patent Document 1). Since this acoustic device has a built-in vibration type speaker having a cone type diaphragm that can output from the high range to the low range, the vibration type speaker is arranged so as to face the upper surface, so that a larger vibration type speaker can be built in. It is configured.
しかしながら、従来の音響装置のように、振動型スピーカが向く上面にしか音孔がないため、振動板の裏面から発せられる音波が筐体内に留まってしまう。このため空気抵抗が大きくなってしまい、特に低音領域の音波を出すことが困難であった。また、振動板は、音波発生部の振動により振動して空気を振動させることで音波を発生する。よって、同じ音波の波長を出力するときに振動板の表と裏とでは、音波の波長が正相と逆相になる。つまり、この正相と逆相の波長が筐体内に共存すると、お互いの波長が干渉し、打ち消しあってしまうため、音響装置からの音波の出力が弱まるという課題がある。
However, unlike the conventional acoustic device, since the sound hole is provided only on the upper surface facing the vibration type speaker, the sound wave emitted from the rear surface of the diaphragm remains in the casing. For this reason, the air resistance is increased, and it is difficult to emit a sound wave in the low frequency range. Further, the diaphragm generates sound waves by vibrating the air by the vibration of the sound wave generator. Therefore, when outputting the same sound wave wavelength, the sound wave wavelength is opposite to the normal phase on the front and back sides of the diaphragm. That is, when the normal phase and reverse phase wavelengths coexist in the housing, the wavelengths interfere with each other and cancel each other, resulting in a weakening of the sound wave output from the acoustic device.
本発明の目的は、筐体内に留まってしまう空気の抵抗を低減するとともに、振動板から発せられる正相と逆相の音波の打ち消し合いによる音波の出力低下を防止することである。
An object of the present invention is to reduce the resistance of air remaining in the casing and to prevent a decrease in sound wave output due to cancellation of normal and reverse phase sound waves emitted from the diaphragm.
本発明の音響装置は、振動型スピーカの振動に応じて筐体に設けた第１の音孔より音波を放出させるとともに、振動型スピーカの裏面から放出される音波を操作パネルに設けた第２の音孔より放出させる。
The acoustic device of the present invention emits sound waves from the first sound hole provided in the housing in response to vibration of the vibration type speaker, and secondly provides sound waves emitted from the back surface of the vibration type speaker on the operation panel. It is emitted from the sound hole.
本発明によれば、音響装置の上面または下面と側面に音孔を設けることで、振動型スピーカの振動板から発せられる正相と逆相の音波を、筐体内で打ち消し合わないように振動型スピーカから出力させ、低音領域を含む音波の出力低下を防止することができる。
According to the present invention, by providing sound holes on the upper surface or the lower surface and the side surface of the acoustic device, the vibration type so that the sound waves of the normal phase and the reverse phase emitted from the diaphragm of the vibration type speaker are not canceled in the casing. It is possible to output from the speaker and prevent a decrease in the output of the sound wave including the bass region.
（実施の形態１）
以下、本発明の実施の形態１である車載用音響装置について、図１から図１２を参照しながら説明する。 (Embodiment 1)
Hereinafter, an in-vehicle acoustic device according toEmbodiment 1 of the present invention will be described with reference to FIGS. 1 to 12.
以下、本発明の実施の形態１である車載用音響装置について、図１から図１２を参照しながら説明する。 (Embodiment 1)
Hereinafter, an in-vehicle acoustic device according to
本発明の実施の形態１の音響装置の斜視図、正面図、背面図、上面図、下面図、右側面図、左側面図をそれぞれ図１から７に示す。また、図２で示したＡ－Ａ線を垂直に切った断面図を図８に示す。
1 to 7 show a perspective view, a front view, a rear view, a top view, a bottom view, a right side view, and a left side view of the acoustic device according to Embodiment 1 of the present invention, respectively. Further, FIG. 8 shows a cross-sectional view taken along line AA shown in FIG.
上述した図において、音響装置１の振動型スピーカ２０は、マグネット部２１やボイスコイル部２２を備える音波発生部２３と、この音波発生部２３に接続し音波を外部に伝翻するコーン型振動板２４とを一体成型することにより形成される。また、コーン型振動板２４の外周部には、エッジ部２５が設けられている。
In the figure mentioned above, the vibration type speaker 20 of the acoustic device 1 includes a sound wave generation unit 23 including a magnet unit 21 and a voice coil unit 22, and a cone type vibration plate that is connected to the sound wave generation unit 23 and transmits sound waves to the outside. 24 is integrally formed. An edge portion 25 is provided on the outer peripheral portion of the cone-shaped diaphragm 24.
基板３０は、この振動型スピーカ２０の音波発生部２３を保持するための穴３１を有し、振動型スピーカ２０と電気的に接続する。
The substrate 30 has a hole 31 for holding the sound wave generator 23 of the vibration type speaker 20 and is electrically connected to the vibration type speaker 20.
また、音響装置１は、この基板３０が保持した振動型スピーカ２０側および振動型スピーカ２０の振動板２４を覆う筐体４０を有する。筐体４０は、一方の側面側に開口部（図示せず）を有し、かつ、上面に第１の音孔４１を有する。この筐体４０の第１の音孔４１は、上面に振動型スピーカ２０の直径と略同じ大きさを有しており、振動型スピーカ２０から発生した音波を通す。この第１の音孔４１は、網目構造またはスリット構造になっており、音波を通しやすくなっている。また、筐体４０内部の第１の音孔４１の外周部に突起部４２を内上面より下面に向かって設けている。この筐体４０は、音波と共鳴することを防ぐために樹脂で作成されている。
Also, the acoustic device 1 has a housing 40 that covers the vibration speaker 20 side held by the substrate 30 and the diaphragm 24 of the vibration speaker 20. The housing 40 has an opening (not shown) on one side surface, and has a first sound hole 41 on the upper surface. The first sound hole 41 of the housing 40 has substantially the same size as the diameter of the vibration type speaker 20 on the upper surface, and allows sound waves generated from the vibration type speaker 20 to pass through. The first sound hole 41 has a mesh structure or a slit structure, and facilitates the passage of sound waves. Further, a protrusion 42 is provided on the outer periphery of the first sound hole 41 inside the housing 40 from the inner upper surface toward the lower surface. The housing 40 is made of resin in order to prevent resonance with sound waves.
さらに、音響装置１は、この筐体４０の開口部に取り付けられる操作パネル５０を有する。操作パネル５０は、左右に振動型スピーカ２０の音波を通す第２の音孔５１を有する。また、音響装置１は、音量を調節するボリュームつまみ５２と、操作ボタン５３と、ラジオのチャンネル名等を表示する表示パネル５４を有する。よって、音響装置１は、ラジオ放送のチャンネルを変えて出力させたり、音量を変えたりすることができる。なお、音響装置１の音源は、ラジオ放送によるものに限らず、後述するフラッシュメモリ６０やＣＤ、ＤＶＤによるものであってもよい。
Furthermore, the acoustic device 1 has an operation panel 50 attached to the opening of the housing 40. The operation panel 50 has second sound holes 51 through which sound waves of the vibration type speaker 20 pass. The acoustic device 1 also includes a volume knob 52 for adjusting the volume, an operation button 53, and a display panel 54 for displaying a radio channel name and the like. Therefore, the audio apparatus 1 can change the radio broadcast channel for output or change the volume. Note that the sound source of the audio device 1 is not limited to the one based on the radio broadcast, but may be one based on a flash memory 60, a CD, or a DVD described later.
図４で示したＢ―Ｂ線を垂直に切った断面図を図９に示す。この図９の断面図を用いて、振動型スピーカ２０からの音波の出力の仕方について説明する。
FIG. 9 shows a cross-sectional view taken along the line BB shown in FIG. A method of outputting sound waves from the vibration type speaker 20 will be described with reference to the sectional view of FIG.
振動型スピーカ２０は、筐体４０の上面を向いており、コーン型振動板２４のエッジ部２５と筐体４０の内方の上面に配置された突起部４２とが当接している。このため、振動型スピーカ２０の正面から発せられる音波は、筐体４０の上面の第１の音孔４１を抜けて出力される。一方、コーン型振動板２４の裏面から発せられる音波は、音響装置１の前面に配置された操作パネル５０の第２の音孔５１を通して出力される。
The vibration type speaker 20 faces the upper surface of the housing 40, and the edge portion 25 of the cone-shaped diaphragm 24 and the protrusion 42 disposed on the inner upper surface of the housing 40 are in contact with each other. For this reason, sound waves emitted from the front of the vibration type speaker 20 are output through the first sound hole 41 on the upper surface of the housing 40. On the other hand, sound waves emitted from the back surface of the cone-shaped diaphragm 24 are output through the second sound hole 51 of the operation panel 50 arranged on the front surface of the acoustic device 1.
図１０は、音響装置１が車両内部のセンターコンソールに組み込まれたときの概観を示す図である。音響装置１の操作パネル５０だけが、前面に突出している。運転者は、この操作パネル５０上のボリュームつまみ５２や操作ボタン５３を操作することにより、ラジオのチャンネルを変えたり、音量を調整したりすることができる。
FIG. 10 is a diagram showing an overview when the audio device 1 is incorporated in the center console inside the vehicle. Only the operation panel 50 of the sound device 1 protrudes from the front surface. The driver can change the radio channel and adjust the volume by operating the volume knob 52 and the operation button 53 on the operation panel 50.
音響装置１が車両内のセンターコンソールに組み込まれているため、音響装置１の上面から出力された音波は、センターコンソールに配置されたエアコン等の車載装置に当たり、吸収されたり、分散したりする。一方、コーン型振動板２４の裏側から発せられる音波は、操作パネル５０の第２の音孔５１を通して出力されるため、出力された音波は乗車している人に直接届く。
Since the acoustic device 1 is incorporated in the center console in the vehicle, the sound wave output from the upper surface of the acoustic device 1 hits an in-vehicle device such as an air conditioner disposed on the center console and is absorbed or dispersed. On the other hand, since the sound wave emitted from the back side of the cone-shaped diaphragm 24 is output through the second sound hole 51 of the operation panel 50, the output sound wave directly reaches the person on board.
この構成を有することにより、第１、第２の音孔４１、５１が十分に確保されていることから、筐体４０内の空気抵抗を低減することができ、振動型スピーカ２０のコーン型振動板２４の表と裏から発せられる正相と逆相の音波の干渉を防ぐことができる。そのため、音源の出力を低下させることなく乗車している人に聞きやすい音波を出力することができる。
With this configuration, since the first and second sound holes 41 and 51 are sufficiently secured, the air resistance in the housing 40 can be reduced, and the cone type vibration of the vibration type speaker 20 can be reduced. It is possible to prevent interference between normal and reverse sound waves emitted from the front and back of the plate 24. For this reason, it is possible to output sound waves that are easy to hear for a person on board without lowering the output of the sound source.
図１１は、音響装置１の操作パネル５０を取りはずしたときの斜視図である。図１１で示すように、操作パネル５０を筐体４０から取りはずすことができる。
FIG. 11 is a perspective view when the operation panel 50 of the audio device 1 is removed. As shown in FIG. 11, the operation panel 50 can be removed from the housing 40.
図１２は、この操作パネル５０を背後から見たときの斜視図である。図１２に示すように、操作パネル５０の背面にフラッシュメモリ６０のような補助記憶装置を接続できるように、挿入口７０を設けてもよい。この場合、フラッシュメモリ６０を挿入口７０に挿して接続した状態で、操作パネル５０を音響装置１に接続することができる。
FIG. 12 is a perspective view of the operation panel 50 when viewed from behind. As shown in FIG. 12, an insertion port 70 may be provided so that an auxiliary storage device such as a flash memory 60 can be connected to the back of the operation panel 50. In this case, the operation panel 50 can be connected to the audio device 1 with the flash memory 60 inserted and connected to the insertion port 70.
この構成により、操作パネル５０の概観を損ねることなく、フラッシュメモリ６０を接続することができる。そして、フラッシュメモリ６０に記憶されている音楽等を音響装置１で再生することができる。
With this configuration, the flash memory 60 can be connected without deteriorating the appearance of the operation panel 50. Then, music or the like stored in the flash memory 60 can be reproduced by the acoustic device 1.
（実施の形態２）
次に、本発明の実施の形態２である車載用音響装置を図１３から図２２を用いて説明する。 (Embodiment 2)
Next, an in-vehicle acoustic device according to the second embodiment of the present invention will be described with reference to FIGS.
次に、本発明の実施の形態２である車載用音響装置を図１３から図２２を用いて説明する。 (Embodiment 2)
Next, an in-vehicle acoustic device according to the second embodiment of the present invention will be described with reference to FIGS.
なお、実施の形態２において、実施の形態１と共通する構成と動作の説明は省略する。
In the second embodiment, description of the configuration and operation common to the first embodiment is omitted.
本発明の実施の形態２の音響装置の正面図、背面図、上面図、下面図、右側面図、左側面図をそれぞれ図１３から１８に示す。また、図１３で示したＣ―Ｃ線を垂直に切った断面図を図１９に示す。
FIGS. 13 to 18 show a front view, a rear view, a top view, a bottom view, a right side view, and a left side view of the acoustic device according to Embodiment 2 of the present invention, respectively. Further, FIG. 19 shows a cross-sectional view of the CC line shown in FIG. 13 taken perpendicularly.
上述した図において、音響装置１１０は、この基板１３０が保持している振動型スピーカ１２０側および振動型スピーカ１２０の振動板１２４を覆う筐体１４０を有する。この筐体１４０は、一方の側面に開口部（図示せず）を有し、底面に第１の音孔１４１を有する。
In the above-described figure, the acoustic device 110 has a housing 140 that covers the vibration speaker 120 side and the diaphragm 124 of the vibration speaker 120 held by the substrate 130. The housing 140 has an opening (not shown) on one side surface and a first sound hole 141 on the bottom surface.
そのため、振動型スピーカ１２０の振動に応じて筐体１４０の第１の音孔１４１（音響装置１１０の底面）から音波が放出されるとともに、振動型スピーカ１２０の裏面から放出された音波が操作パネル１５０に設けられた第２の音孔１５１より放出される。
Therefore, a sound wave is emitted from the first sound hole 141 (the bottom surface of the acoustic device 110) of the housing 140 according to the vibration of the vibration type speaker 120, and the sound wave emitted from the back surface of the vibration type speaker 120 is 150 is emitted from the second sound hole 151 provided at 150.
この筐体１４０の底面には、振動型スピーカ１２０の直径と同じ大きさの第１の音孔１４１が設けられているため、本発明の実施の形態１の振動型スピーカ１２０の向きを逆に配置した構造となっている。
Since the first sound hole 141 having the same size as the diameter of the vibration type speaker 120 is provided on the bottom surface of the casing 140, the direction of the vibration type speaker 120 according to the first embodiment of the present invention is reversed. It has an arranged structure.
この構成により、音響装置１１０の底面から出力された音波は、図２０のように音響装置１１０がセンターコンソールに組み込まれているため、音波が、センターコンソールに配置されたエアコン等の車載装置に当たり、吸収されたり、分散したりする。そして、実施の形態１と同様、音孔が十分に確保されていることから、筐体１４０内の空気抵抗を低減することができ、振動型スピーカ１２０のコーン型振動板１２４の表と裏から発せられる正相と逆相の干渉を防ぐことができる。そのため、音源の出力を低下させることなく乗車している人に聞きやすい音波を出力することができる。
With this configuration, the sound wave output from the bottom surface of the sound device 110 is built into the center console as shown in FIG. 20, so that the sound wave hits an in-vehicle device such as an air conditioner disposed on the center console. Absorbed or dispersed. Since the sound holes are sufficiently secured as in the first embodiment, the air resistance in the housing 140 can be reduced, and the front and back of the cone-type diaphragm 124 of the vibration type speaker 120 can be reduced. It is possible to prevent normal phase and reverse phase interference. For this reason, it is possible to output sound waves that are easy to hear for a person on board without lowering the output of the sound source.
センターコンソールの上部に配置される場合、実施の形態２のように振動型スピーカ１２０が底面を向いている音響装置１１０の方が、実施の形態１の音響装置１に比べて、振動型スピーカ１２０のコーン型振動板１２４の表と裏から発せられる正相と逆相の干渉を防ぐことができる。そのため、操作パネル１５０の第２の音孔１５１から出力された音波は、振動型スピーカ１２０から発せられる逆位相の音波による干渉の影響を低減することができ、乗車している人に聞きやすい音波を提供することができる。
When arranged at the upper part of the center console, the acoustic device 110 in which the vibration type speaker 120 faces the bottom as in the second embodiment is different from the acoustic device 1 in the first embodiment. Thus, interference between the normal phase and the reverse phase emitted from the front and back of the cone-shaped diaphragm 124 can be prevented. Therefore, the sound wave output from the second sound hole 151 of the operation panel 150 can reduce the influence of interference caused by the sound wave of the opposite phase emitted from the vibration type speaker 120, and the sound wave that is easy to hear for the person on board. Can be provided.
図２１は、本発明の実施の形態２の音響装置１１０の斜視図である。この音響装置１１０では、操作パネル１５０を音響装置１１０から取り外すことができない。この場合、図２２に示すように、フラッシュメモリ１６０を接続できる挿入口１７０を操作パネル１５０の隆起している隆起部１８０の側面に設けることができる。このとき、挿入口１７０を音響装置１１０の右側面または左側面に向くように配置し、フラッシュメモリ１６０を挿入したときに、音響装置１１０の正面にフラッシュメモリ１６０が飛び出ないように接続することができる。
FIG. 21 is a perspective view of the acoustic device 110 according to the second embodiment of the present invention. In this acoustic device 110, the operation panel 150 cannot be removed from the acoustic device 110. In this case, as shown in FIG. 22, an insertion port 170 to which the flash memory 160 can be connected can be provided on the side surface of the raised portion 180 where the operation panel 150 is raised. At this time, the insertion port 170 may be arranged so as to face the right side surface or the left side surface of the audio device 110, and when the flash memory 160 is inserted, the flash memory 160 may be connected to the front surface of the audio device 110 so that it does not pop out. it can.
この構成により、運転者が操作パネル１５０を操作するときにフラッシュメモリ１６０が操作の妨げにならない。
This configuration prevents the flash memory 160 from interfering with the operation when the driver operates the operation panel 150.
以上のように、本発明にかかる音響装置は、車両のセンターコンソールに組み込むことができる音響装置として有用である。
As described above, the acoustic device according to the present invention is useful as an acoustic device that can be incorporated into the center console of a vehicle.
１、１１０ 音響装置
２０、１２０ 振動型スピーカ
２３、１２３ 音波発生部
２４、１２４ 振動板
３０、１３０ 基板
３１、１３１ 穴
４０、１４０ 筐体
４１、１４１ 第１の音孔
４２、１４２ 突起部
５０、１５０ 操作パネル
５１、１５１ 第２の音孔
６０、１６０ フラッシュメモリ
７０、１７０ 挿入口
１８０ 隆起部 DESCRIPTION OF SYMBOLS 1,110 Sound device 20, 120 Vibration type speaker 23, 123 Sound wave generation part 24, 124 Diaphragm 30, 130 Substrate 31, 131 Hole 40, 140 Case 41, 141 First sound hole 42, 142 Protrusion part 50, 150 Operation panel 51, 151 Second sound hole 60, 160 Flash memory 70, 170 Insertion port 180 Raised portion
２０、１２０ 振動型スピーカ
２３、１２３ 音波発生部
２４、１２４ 振動板
３０、１３０ 基板
３１、１３１ 穴
４０、１４０ 筐体
４１、１４１ 第１の音孔
４２、１４２ 突起部
５０、１５０ 操作パネル
５１、１５１ 第２の音孔
６０、１６０ フラッシュメモリ
７０、１７０ 挿入口
１８０ 隆起部 DESCRIPTION OF SYMBOLS 1,110
Claims (4)
- 音波発生部とこの音波発生部から発生した音波を外部に伝翻する振動部とからなる振動型スピーカと、
この振動型スピーカの音波発生部を保持し、前記音波発生部と電気的に接続する基板と、
この基板の振動型スピーカ側および少なくとも前記振動型スピーカの振動部を覆うとともに、一方の側面に開口部を有し、かつ、前記音波発生部の少なくとも上方または下方の何れか一方に第１の音孔を有する筐体と、
この筐体の開口部に取り付けられ、第２の音孔を有する操作パネルと、を備え、
この振動型スピーカは、前記筐体に設けられた第１の音孔の内方の上面と当接し、前記振動型スピーカの振動に応じて前記筐体の第１の音孔より音波を放出させるとともに、前記振動型スピーカの裏面から放出される音波を前記操作パネルに設けられた第２の音孔より放出させる、音響装置。 A vibration type speaker composed of a sound wave generation unit and a vibration unit for transmitting sound waves generated from the sound wave generation unit to the outside;
A substrate that holds the sound wave generating portion of the vibration type speaker and is electrically connected to the sound wave generating portion;
The substrate covers the vibration type speaker side and at least the vibration part of the vibration type speaker, has an opening on one side surface, and has a first sound at least above or below the sound wave generation unit. A housing having a hole;
An operation panel attached to the opening of the housing and having a second sound hole,
The vibration type speaker abuts on the inner upper surface of the first sound hole provided in the casing, and emits sound waves from the first sound hole of the casing in accordance with the vibration of the vibration type speaker. In addition, an acoustic device that emits sound waves emitted from the back surface of the vibration type speaker from a second sound hole provided in the operation panel. - 前記操作パネルは、前記筐体から着脱可能であり、前記操作パネルの背面に補助記憶装置を接続可能に形成される、請求項１に記載の音響装置。 The acoustic device according to claim 1, wherein the operation panel is detachable from the casing, and an auxiliary storage device can be connected to a back surface of the operation panel.
- 前記筐体は、樹脂からなる、請求項１に記載の音響装置。 The acoustic device according to claim 1, wherein the casing is made of resin.
- 前記操作パネルは、前記筐体の開口部から外方に向かって隆起する隆起部を有し、この隆起部に補助記憶装置を取り外し可能な補助記憶装置挿入口を備える、請求項１に記載の音響装置。 The said operation panel has a protruding part which protrudes outward from the opening part of the said housing | casing, and is equipped with the auxiliary storage device insertion port which can remove an auxiliary storage device in this protruding part. Acoustic device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI1105775A BRPI1105775A2 (en) | 2011-03-15 | 2011-03-15 | vehicle audio system |
| PCT/JP2011/001497 WO2012123987A1 (en) | 2011-03-15 | 2011-03-15 | In-vehicle audio device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2011/001497 WO2012123987A1 (en) | 2011-03-15 | 2011-03-15 | In-vehicle audio device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012123987A1 true WO2012123987A1 (en) | 2012-09-20 |
Family
ID=46830127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2011/001497 WO2012123987A1 (en) | 2011-03-15 | 2011-03-15 | In-vehicle audio device |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BRPI1105775A2 (en) |
| WO (1) | WO2012123987A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1084192A (en) * | 1996-09-05 | 1998-03-31 | Nec Shizuoka Ltd | Portable electronic equipment |
| JP2002029322A (en) * | 2000-07-19 | 2002-01-29 | Kenwood Corp | On-vehicle electronic equipment |
| JP2002320291A (en) * | 2001-04-23 | 2002-10-31 | Nec Corp | Speaker device |
| JP2004015149A (en) * | 2002-06-04 | 2004-01-15 | Kenwood Corp | Structure of cabinet equipped with speaker |
| JP2007201830A (en) * | 2006-01-26 | 2007-08-09 | Kenwood Corp | Vehicle-mounted electronic equipment |
| JP2010195288A (en) * | 2009-02-26 | 2010-09-09 | Alpine Electronics Inc | Electronic device |
-
2011
- 2011-03-15 BR BRPI1105775A patent/BRPI1105775A2/en not_active Application Discontinuation
- 2011-03-15 WO PCT/JP2011/001497 patent/WO2012123987A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1084192A (en) * | 1996-09-05 | 1998-03-31 | Nec Shizuoka Ltd | Portable electronic equipment |
| JP2002029322A (en) * | 2000-07-19 | 2002-01-29 | Kenwood Corp | On-vehicle electronic equipment |
| JP2002320291A (en) * | 2001-04-23 | 2002-10-31 | Nec Corp | Speaker device |
| JP2004015149A (en) * | 2002-06-04 | 2004-01-15 | Kenwood Corp | Structure of cabinet equipped with speaker |
| JP2007201830A (en) * | 2006-01-26 | 2007-08-09 | Kenwood Corp | Vehicle-mounted electronic equipment |
| JP2010195288A (en) * | 2009-02-26 | 2010-09-09 | Alpine Electronics Inc | Electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI1105775A2 (en) | 2016-05-03 |
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