JP2953800B2 - headphone - Google Patents

headphone

Info

Publication number
JP2953800B2
JP2953800B2 JP4000491A JP4000491A JP2953800B2 JP 2953800 B2 JP2953800 B2 JP 2953800B2 JP 4000491 A JP4000491 A JP 4000491A JP 4000491 A JP4000491 A JP 4000491A JP 2953800 B2 JP2953800 B2 JP 2953800B2
Authority
JP
Japan
Prior art keywords
sound
speaker unit
housing
diaphragm
paths
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP4000491A
Other languages
Japanese (ja)
Other versions
JPH04347997A (en
Inventor
淳一 橋本
幸男 竹田
和朗 小暮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ASHIDA ONKYO KK
Panasonic Holdings Corp
Original Assignee
ASHIDA ONKYO KK
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ASHIDA ONKYO KK, Matsushita Electric Industrial Co Ltd filed Critical ASHIDA ONKYO KK
Priority to JP4000491A priority Critical patent/JP2953800B2/en
Publication of JPH04347997A publication Critical patent/JPH04347997A/en
Application granted granted Critical
Publication of JP2953800B2 publication Critical patent/JP2953800B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は耳殻内に装着して使用す
るヘッドホンに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to headphones used by being worn in an ear shell.

【0002】[0002]

【従来の技術】近年、ヘッドホンは従来のヘッドバンド
によって耳殻外から圧着する大型のものだけではなく、
小型のスピーカユニットを用いてハウジングを小型に作
り、耳殻内に装着して聴取する構造のものが多くなって
いる。
2. Description of the Related Art In recent years, headphones are not only large ones that are crimped from outside the ear shell with a conventional headband,
There is an increasing number of cases in which a small-sized speaker unit is used to make a housing small and mounted in an ear shell for listening.

【0003】しかしながら上記のような従来の構成では
スピーカユニットを納めるハウジングの外径を、大きく
とも18mm程度に収めないとハウジングが耳殻内に入り
きれない。ところがスピーカユニットが小さいと低音の
再生限界があまり低くならないので、スピーカ後部のハ
ウジングにダクトを設けて低域の伸張を図る方法が多く
用いられていた。
[0003] However, in the above-described conventional configuration, the housing cannot fit into the ear shell unless the outer diameter of the housing for housing the speaker unit is at most about 18 mm. However, when the speaker unit is small, the reproduction limit of bass does not become so low. Therefore, a method of providing a duct in the housing at the rear of the speaker to extend the low range has been used in many cases.

【0004】また特開昭62−47298号公報のよう
にハウジング前面に高音用小形スピーカユニットを、ハ
ウジング後方に低音用大形スピーカユニットを配置した
2ウエイ方式の例がある。
As disclosed in Japanese Patent Application Laid-Open No. 62-47298, there is an example of a two-way system in which a small loudspeaker unit for treble is arranged at the front of a housing and a large loudspeaker unit for bass is arranged at the back of the housing.

【0005】[0005]

【発明が解決しようとする課題】しかしながら上記従来
の方法では、前者のダクト方式では多少の低域の伸張は
認められるが、もともとスピーカユニットが小さいため
に限界がある。
However, in the above-mentioned conventional method, although the former duct method allows some low-frequency expansion, it is originally limited because the speaker unit is small.

【0006】また後者の2ウエイ方式は、大形の低音用
スピーカユニットを用いて低域共振周波数を下げること
ができるが、スピーカの数が多くなり、構造が複雑にな
るという問題点があった。
The latter two-way system can reduce the low-band resonance frequency by using a large bass speaker unit, but has the problem that the number of speakers increases and the structure becomes complicated. .

【0007】本発明は上記従来の課題を解決し、少なく
とも耳殻内に入る部分は従来と同様の大きさでありなが
ら、従来より低域まで再生できるヘッドホンを提供する
のを目的とする。
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems, and to provide a headphone capable of reproducing to a lower frequency range than the conventional one, while at least a portion entering the ear shell is the same size as the conventional one.

【0008】[0008]

【課題を解決するための手段】上記目的を達成するため
に、本発明のヘッドホンは前面音孔を有する前部が少な
くとも耳殻内に挿入できる程度の外形寸法であるハウジ
ング内の後部にスピーカユニットを配置し、そのスピー
カユニットと前記前面音孔との間に複数の音道を配置
し、前記前面音孔と前記複数の音道との間に前記スピー
カユニットの出力によって振動する受動的振動板を設け
るという構成となっている。
In order to achieve the above object, a headphone according to the present invention is provided with a speaker unit at a rear part of a housing having a front part having a front sound hole and having an outer dimension at least capable of being inserted into an ear shell. , A plurality of sound paths are arranged between the speaker unit and the front sound hole, and a passive diaphragm vibrated by the output of the speaker unit between the front sound hole and the plurality of sound paths. Is provided.

【0009】[0009]

【作用】本発明は上記の構成によって、耳殻内に入るハ
ウジング前部に比べ、より大きなスピーカユニットによ
り十分な低音まで再生し、かつスピーカユニットの振動
板から発生した音同士が複数の音道を別々に通ることに
よりお互いに干渉することなく前方へ導かれ、そこで受
動的振動板を振動させることにより、特に高音部につい
て受動的振動板が新たな音源として機能し、音を耳内に
到達させることによって周波数特性の調整も容易になる
という作用を生ずる。
According to the present invention, with the above-described structure, a large speaker unit reproduces a sufficiently low tone as compared with the front part of the housing that enters the ear shell, and sounds generated from the diaphragm of the speaker unit have a plurality of sound paths. Are guided separately without interfering with each other, and by vibrating the passive diaphragm there, the passive diaphragm functions as a new sound source, especially in the treble section, and the sound reaches the ear By doing so, there is an effect that the adjustment of the frequency characteristics is also facilitated.

【0010】[0010]

【実施例】以下本発明の一実施例のヘッドホンについて
図面を用いて説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A headphone according to an embodiment of the present invention will be described below with reference to the drawings.

【0011】図1は本発明の一実施例のヘッドホンの側
断面図である。図において前部ハウジング1と後部ハウ
ジング2の間には振動板3aをもつ直径16ないし19
mm程度のスピーカユニット3のフレーム4が挟持され、
前部ハウジング1の前面の直径は約14ないし16mmで
あって、耳殻内に容易にかつ確実に挿入され、前面に小
さな前面音孔5aによりごみ等の侵入を防ぐ多孔質の金
属等のネット5を設け、耳殻内に挿入する際に肌ざわり
を良くするためのたとえばゴムや軟質プラスチック等の
リング6で前面周囲を覆っている。スピーカユニット3
の振動板3aの前面には前部ハウジング1に設けた蓮根
状の音道7,8が互いに連通することなく前方に通じて
おり、音道7の部分の前部は受動的振動板9で前部を閉
鎖されており、音道8の部分は音孔5aに通じている。
音道7,8の中には必要に応じて吸音材または制動材1
0を充填している。これは部分によって材質を変えて特
性を調整してもよい。また音道7の前面の周囲は受動的
振動板9の曲面に合わせてイコライザとしてもよい。後
部ハウジング2は、その内部のスピーカユニット3の後
部に空室11を有し、下方にはコード引出し部12を有
し、ブッシング13に保護された入力コード14を有す
る。
FIG. 1 is a side sectional view of a headphone according to an embodiment of the present invention. In the figure, a diameter 16 to 19 having a diaphragm 3a is provided between a front housing 1 and a rear housing 2.
The frame 4 of the speaker unit 3 of about mm is sandwiched,
The diameter of the front surface of the front housing 1 is about 14 to 16 mm, and it is easily and securely inserted into the ear shell, and a small front sound hole 5a is provided on the front surface to prevent the intrusion of dirt and the like into a porous metal net. A ring 5 made of, for example, rubber or soft plastic is provided around the front surface to improve the feel when inserted into the ear shell. Speaker unit 3
On the front surface of the diaphragm 3a, lotus-shaped sound paths 7 and 8 provided in the front housing 1 communicate with each other without communicating with each other, and a front part of the sound path 7 is a passive diaphragm 9. The front portion is closed, and the portion of the sound path 8 communicates with the sound hole 5a.
In the sound paths 7 and 8, if necessary, a sound absorbing material or a damping material 1
0 is filled. The characteristics may be adjusted by changing the material depending on the part. Further, an equalizer may be provided around the front surface of the sound path 7 in accordance with the curved surface of the passive diaphragm 9. The rear housing 2 has an empty room 11 at the rear of the speaker unit 3 therein, has a cord drawer 12 below, and has an input cord 14 protected by a bushing 13.

【0012】以上のように構成され、つぎにその動作を
説明すると、入力コード14から入力信号がスピーカユ
ニット3に印加されると、スピーカユニット3の振動板
3aは振動し、音道7,8を通って前方へ音圧を与え
る。音道8の部分を通った音圧はそのまま前面音孔5a
から耳殻内に到達するが、音道7を通った音圧は受動的
振動板9を振動させ、受動的振動板9を新たな音源とし
て音圧が発生する。複数の音道7は上記のように受動的
振動板9の近辺以外では互いに連通していないので、そ
れぞれの音道内の音圧は互いに干渉することなく受動的
振動板9に達する。したがって特に波長の短い高音部に
おいて干渉のための周波数特性のピーク・デイップを防
ぐことができる。振動板9はその厚さや形状、同心状の
コルゲーションの付け方、放射状または渦巻状のエッヂ
加工等により周波数特性を制御できるので、スピーカ3
の特性と相補的にして希望の特性を作ることができる。
The operation is described below. When an input signal is applied to the speaker unit 3 from the input cord 14, the diaphragm 3a of the speaker unit 3 vibrates, and the sound paths 7, 8 Gives sound pressure forward through. The sound pressure passing through the sound path 8 is the front sound hole 5a as it is.
The sound pressure passes through the sound path 7 and vibrates the passive diaphragm 9, and the passive diaphragm 9 is used as a new sound source to generate sound pressure. Since the plurality of sound paths 7 do not communicate with each other except for the vicinity of the passive diaphragm 9 as described above, the sound pressures in the respective sound paths reach the passive diaphragm 9 without interfering with each other. Therefore, it is possible to prevent the peak dip of the frequency characteristic due to the interference particularly in the treble portion having a short wavelength. The frequency characteristic of the diaphragm 9 can be controlled by its thickness and shape, concentric corrugation, radial or spiral edge processing, etc.
The desired characteristic can be made complementary to the characteristic described above.

【0013】なお上記において受動的振動板9は音道7
の前面のみに存在することで説明したが、音道8の前面
にかけて存在してもよい。
In the above description, the passive diaphragm 9 is connected to the sound path 7
Has been described only on the front of the sound path 8, but may also be present on the front of the sound path 8.

【0014】また後部ハウジングには必要に応じ適当な
後部音孔を設け、特性を改善し、さらに従来公知のダク
トを設けることも差し支えない。
The rear housing may be provided with an appropriate rear sound hole as required to improve characteristics, and may be provided with a conventionally known duct.

【0015】さらに本発明の思想の範囲で構造の変更,
簡略化等を行っても差し支えない。
Further, within the spirit of the present invention, the structure can be changed,
Simplification etc. may be performed.

【0016】[0016]

【発明の効果】以上述べたように本発明のヘッドホンは
耳殻内に挿入して装着できる小型でありながら耳殻内に
挿入できない、大きな振動板を有するスピーカユニット
を使用することにより、大型のヘッドホンにも匹敵する
低音再生ができ、また複数の音道によって音を前面に導
き、その前面に設けた小型の受動的振動板は前記スピー
カユニットの出力によって振動するため特に高音部につ
いて新たな音源として機能し、耳内から離れた距離にあ
るスピーカユニットの振動板から出た音同士の干渉によ
って周波数特性にピークやデイップを生ずることを防
ぎ、周波数特性の調整がやりやすいなど産業上有効な効
果を発揮する優れたヘッドホンを提供するものである。
As described above, the headphone of the present invention has a large size by using a speaker unit having a large diaphragm, which is small and can be inserted into the ear shell but cannot be inserted into the ear shell. It can reproduce bass sound comparable to headphones, and it guides sound to the front by multiple sound paths, and the small passive diaphragm provided on the front vibrates by the output of the speaker unit. This function works as an industrially effective effect, such as preventing peaks and dips in the frequency characteristics caused by interference between sounds emitted from the diaphragm of the speaker unit that is far away from the ear, and making it easier to adjust the frequency characteristics. It provides excellent headphones that demonstrate

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施例のヘッドホンの側断面図FIG. 1 is a side sectional view of a headphone according to an embodiment of the present invention.

【図2】同じく図1におけるA−A′断面を示す正面断
面図
FIG. 2 is a front sectional view showing an AA ′ section in FIG. 1;

【符号の説明】[Explanation of symbols]

1 前部ハウジング 2 後部ハウジング 3 スピーカユニット 3a スピーカユニット3の振動板 5a 前面音孔 7,8 音道 9 受動的振動板 DESCRIPTION OF SYMBOLS 1 Front housing 2 Rear housing 3 Speaker unit 3a Diaphragm of speaker unit 3 5a Front sound hole 7, 8 Sound path 9 Passive diaphragm

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小暮 和朗 東京都品川区大崎3丁目4番9号 アシ ダ音響株式会社内 (56)参考文献 特開 昭63−203096(JP,A) 特開 昭62−276997(JP,A) 実開 昭57−46382(JP,U) 実開 昭56−108684(JP,U) (58)調査した分野(Int.Cl.6,DB名) H04R 1/10 H04R 1/28 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazuo Kogure 3-4-9 Osaki, Shinagawa-ku, Tokyo Ashida Acoustic Co., Ltd. (56) References JP-A-63-203096 (JP, A) JP-A Sho 62-276997 (JP, A) Japanese Utility Model Showa 57-46382 (JP, U) Japanese Utility Model Showa 56-108684 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) H04R 1/10 H04R 1/28

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】前面音孔を有する前部が少なくとも耳殻内
に挿入できる程度の外形寸法であるハウジング内の後部
にスピーカユニットを配置し、そのスピーカユニットと
前記前面音孔との間に複数の音道を配置し、前記前面音
孔と前記複数の音道との間に前記スピーカユニットの出
力によって振動する受動的振動板を設けたヘッドホン。
1. A speaker unit is disposed at a rear portion of a housing having a front portion having a front sound hole and having an outer dimension at least capable of being inserted into an ear shell, and a plurality of speaker units are provided between the speaker unit and the front sound hole. And a passive diaphragm provided between the front sound hole and the plurality of sound paths and vibrated by an output of the speaker unit.
【請求項2】複数の音道のうち一部は受動的振動板によ
り前部を閉鎖され、他の一部は前面音孔と連結している
請求項1記載のヘッドホン。
2. The headphone according to claim 1, wherein a part of the plurality of sound paths has a front part closed by a passive diaphragm and another part is connected to a front sound hole.
【請求項3】複数の音道にはそれぞれ同一または異種の
吸音材または制動材を充填した請求項1記載のヘッドホ
ン。
3. The headphone according to claim 1, wherein the plurality of sound paths are filled with the same or different sound absorbing materials or braking materials, respectively.
JP4000491A 1991-03-06 1991-03-06 headphone Expired - Fee Related JP2953800B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4000491A JP2953800B2 (en) 1991-03-06 1991-03-06 headphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4000491A JP2953800B2 (en) 1991-03-06 1991-03-06 headphone

Publications (2)

Publication Number Publication Date
JPH04347997A JPH04347997A (en) 1992-12-03
JP2953800B2 true JP2953800B2 (en) 1999-09-27

Family

ID=12568770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4000491A Expired - Fee Related JP2953800B2 (en) 1991-03-06 1991-03-06 headphone

Country Status (1)

Country Link
JP (1) JP2953800B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104954900A (en) * 2014-03-28 2015-09-30 美律电子(惠州)有限公司 Earphone with passive diaphragm

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011114688A1 (en) * 2010-03-18 2011-09-22 パナソニック株式会社 Speaker, hearing aid, earphone, and portable terminal device
TWI551152B (en) * 2013-05-08 2016-09-21 寶德科技股份有限公司 Headphone with passive diaphragm
KR101952906B1 (en) * 2017-12-20 2019-02-28 부전전자 주식회사 Acoustic device having multiple vibration plates
US10911855B2 (en) * 2018-11-09 2021-02-02 Vzr, Inc. Headphone acoustic transformer
CN110753292B (en) * 2019-09-30 2021-07-13 歌尔科技有限公司 Sound generating device, acoustic module provided with same and electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104954900A (en) * 2014-03-28 2015-09-30 美律电子(惠州)有限公司 Earphone with passive diaphragm

Also Published As

Publication number Publication date
JPH04347997A (en) 1992-12-03

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