JPH0455040B2 - - Google Patents
Info
- Publication number
- JPH0455040B2 JPH0455040B2 JP20405383A JP20405383A JPH0455040B2 JP H0455040 B2 JPH0455040 B2 JP H0455040B2 JP 20405383 A JP20405383 A JP 20405383A JP 20405383 A JP20405383 A JP 20405383A JP H0455040 B2 JPH0455040 B2 JP H0455040B2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- hole
- electroacoustic transducer
- space
- handset
- 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
Links
- 239000000919 ceramic Substances 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000012212 insulator Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for telephonic receivers
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電話器の受話器などに用いられる電気
音響変換器を電話器のハンドセツトなどに取付け
る際の電気音響変換器収納装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electroacoustic transducer storage device for mounting an electroacoustic transducer used in a telephone receiver into a telephone handset.
従来例の構成とその問題点
圧電形電気音響変換器には従来からセラミツク
圧電体を金属製振動板に貼付けた圧電振動子が多
く用いられている。この圧電振動子を用いて種々
の電気音響変換器を設計する場合、圧電振動子の
支持方法、ケースの材質、形状とともに、ケース
を取付けるハンドセツトの形状も重要な問題とな
る。第１図にその収納装置の従来例を示す。図に
おいて、１はセラミツク圧電体で、その両面には
電極が付けられている。２は金属製振動板で、セ
ラミツク圧電体１と接着剤により貼合わされて圧
電振動子を構成している。３は金属製のケース
で、背気室漏洩孔４と音波放射孔５を有してい
る。６は振動板２と音波放射孔５を有するケース
３との間を確保し、振動板２を周辺固定するリン
グである。７はセラミツク圧電体１の電極表面と
入力端子８を接続するリード線９の一方の半田付
部分、１０はリード線９を入力端子８に接続する
ためのもう一方の半田付部分、１１はケース３と
入力端子８を電気的に分離するための絶縁体であ
る。１２は振動板２にリード線１３を接続するた
めの半田付部分、１４はリード線１３をもう一方
の入力端子１５に接続している半田付部分であ
る。１６は絶縁体である。１７は以上の構成の圧
電形電気音響変換器を収納するハンドセツトで、
放音孔１８が設けられている。Conventional configurations and their problems Piezoelectric vibrators, in which a ceramic piezoelectric material is attached to a metal diaphragm, have been widely used in piezoelectric electroacoustic transducers. When designing various electroacoustic transducers using this piezoelectric vibrator, important issues include the method of supporting the piezoelectric vibrator, the material and shape of the case, and the shape of the handset to which the case is attached. FIG. 1 shows a conventional example of the storage device. In the figure, 1 is a ceramic piezoelectric material, and electrodes are attached to both surfaces of the ceramic piezoelectric material. Reference numeral 2 denotes a metal diaphragm, which is bonded to the ceramic piezoelectric body 1 with an adhesive to form a piezoelectric vibrator. Reference numeral 3 denotes a metal case, which has a back air chamber leak hole 4 and a sound wave emission hole 5. A ring 6 secures a space between the diaphragm 2 and the case 3 having the sound wave emission hole 5, and fixes the diaphragm 2 around the periphery. 7 is a soldered part of one side of the lead wire 9 that connects the electrode surface of the ceramic piezoelectric body 1 and the input terminal 8, 10 is the other soldered part that connects the lead wire 9 to the input terminal 8, and 11 is the case. This is an insulator for electrically separating input terminal 3 and input terminal 8. 12 is a soldered part for connecting the lead wire 13 to the diaphragm 2, and 14 is a soldered part for connecting the lead wire 13 to the other input terminal 15. 16 is an insulator. 17 is a handset that houses the piezoelectric electroacoustic transducer configured as described above;
A sound emitting hole 18 is provided.
以上のような構成の圧電形電気音響変換器の収
納構造では、電話の受話器に使用する場合、低周
波減の音圧が高いため、耳で聞いた場合に明瞭度
の良い音が得られないという欠点を有しているも
のであつた。 When using the piezoelectric electroacoustic transducer storage structure as described above in a telephone receiver, the sound pressure at low frequencies is high, making it difficult to obtain clear sound when heard with the ear. It had the following drawbacks.
発明の目的
本発明は前記のような従来の欠点を除去するも
ので、ケース前面の周辺部に前気室漏洩孔と電気
音響変換器の背面空間をつなぐ空間を設け、この
空間をケース前面中心部の音波放射孔とハンドセ
ツトの放音孔とをつなぐ空間と分離して電気音響
変換器をハンドセツトに収納し、特に低周波帯域
の明瞭度を向上させた電気音響変換器収納装置を
提供しようとするものである。Purpose of the Invention The present invention eliminates the above-mentioned conventional drawbacks by providing a space in the periphery of the front of the case that connects the front air chamber leak hole and the back space of the electroacoustic transducer, and this space is centered on the front of the case. An object of the present invention is to provide an electroacoustic transducer storage device in which the electroacoustic transducer is housed in a handset separated from the space connecting the sound emission hole of the receiver and the sound emission hole of the handset, and the clarity of the low frequency band is particularly improved. It is something to do.
発明の構成
この目的を達成するため、本発明電気音響変換
器収納装置は、ケース中心部に音波放射孔、周辺
部に前気室漏洩孔を有する電気音響変換器をハン
ドセツトに収納し、前記音波放射孔と前記ハンド
セツトの放音孔とをつなぐ空間と、前記前気室漏
洩孔と前記電気音響変換器の背面空間とをつなぐ
空間とを分離したものである。Structure of the Invention In order to achieve this object, the electroacoustic transducer housing device of the present invention stores an electroacoustic transducer having a sound wave emission hole in the center of the case and a front air chamber leak hole in the peripheral part, and stores the electroacoustic transducer in a handset. A space connecting the radiation hole and the sound emission hole of the handset is separated from a space connecting the front air chamber leak hole and the back space of the electroacoustic transducer.
実施例の説明
以下、本発明の一実施例について第２図を参照
しながら従来例と同一箇所には同一番号を付して
説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. 2, with the same numbers assigned to the same parts as in the conventional example.
まず、本発明では前面中心部に音波放射孔５を
もつケース３の周辺部に前気室漏洩孔１９が設け
られている。ここで、音波放射孔５は１つの孔と
したが、前面中心部に複数個設けてもよい。ま
た、２０は音波放射孔５からハンドセツト１７の
放音孔１８へつながる空間２１と、前気室漏洩孔
１９と圧電形電気音響変換器の背面空間２２とを
つなぐ空間２３とを分離するためにハンドセツト
１７と一体に設けられた隔壁である。 First, in the present invention, a front air chamber leak hole 19 is provided at the periphery of the case 3 which has the sound wave emission hole 5 at the center of the front surface. Although one sound wave radiation hole 5 is used here, a plurality of sound wave radiation holes 5 may be provided in the center of the front surface. Further, 20 is for separating a space 21 that connects the sound emission hole 5 to the sound emission hole 18 of the handset 17 and a space 23 that connects the front air chamber leak hole 19 and the back space 22 of the piezoelectric electroacoustic transducer. This is a partition wall provided integrally with the handset 17.
そして、圧電振動子により発生された音は音波
放射孔５と前気室漏洩孔１９を通り前方に出され
る。そのうち音波放射孔５から出た音はハンドセ
ツト１７に設けられた放音孔１８から出て耳へ伝
達される。一方、前気室漏洩孔１９から出た音は
隔壁２６により遮断されるため、放音孔１８から
出ずに空間２３を通り電気音響変換器の背面空間
２２へ逃がされる。 The sound generated by the piezoelectric vibrator passes through the sound wave radiation hole 5 and the front air chamber leak hole 19 and is emitted forward. The sound emitted from the sound wave emitting hole 5 is emitted from the sound emitting hole 18 provided in the handset 17 and is transmitted to the ear. On the other hand, since the sound emitted from the front air chamber leak hole 19 is blocked by the partition wall 26, it does not come out from the sound emitting hole 18, but passes through the space 23 and escapes to the back space 22 of the electroacoustic transducer.
第３図は従来品と本発明品における出力音圧−
周波数特性を比較して示すものであり、本発明品
による特性Ｂは従来品による特性Ａに比べて低域
周波数の音圧がはつきりと低下していることを示
している。 Figure 3 shows the output sound pressure of the conventional product and the product of the present invention.
This shows a comparison of frequency characteristics, and characteristic B of the product of the present invention shows that the sound pressure at low frequencies is significantly lower than characteristic A of the conventional product.
発明の効果
以上のように本発明によれば、前気室漏洩孔と
電気音響変換器の背面空間とをつなぐ空間を、音
波放射孔と放音孔とをつなぐ空間と分離した構成
としたことにより、低域周波数の音圧が低下し、
人の聴覚にマツチングした明瞭で聞き取り易く、
快い音質とすることができるものである。Effects of the Invention As described above, according to the present invention, the space connecting the front air chamber leak hole and the back space of the electroacoustic transducer is separated from the space connecting the sound wave emission hole and the sound emission hole. As a result, the sound pressure of low frequencies decreases,
Clear and easy to hear, matched to human hearing,
This allows for a pleasant sound quality.
第１図は従来の圧電形電気音響変換器の収納装
置を示す断面図、第２図は本発明による圧電形電
気音響変換器収納装置の一実施例を示す断面図、
第３図は本発明品と従来品の音圧−周波数特性を
比較して示す図である。
１……セラミツク圧電体、２……金属製振動
板、３……ケース、５……音波放射孔、１７……
ハンドセツト、１８……放音孔、１９……前気室
漏洩孔、２１，２３……空間、２２……背面空
間。
FIG. 1 is a sectional view showing a conventional piezoelectric electroacoustic transducer storage device, and FIG. 2 is a sectional view showing an embodiment of the piezoelectric electroacoustic transducer storage device according to the present invention.
FIG. 3 is a diagram showing a comparison of the sound pressure-frequency characteristics of the product of the present invention and the conventional product. 1... Ceramic piezoelectric body, 2... Metal diaphragm, 3... Case, 5... Sound wave radiation hole, 17...
Handset, 18...Sound emission hole, 19...Front air chamber leak hole, 21, 23...Space, 22...Back space.
Claims (1)
室漏洩孔を有する電気音響変換器をハンドセツト
に収納し、前記音波放射孔と前記ハンドセツトの
放音孔とをつなぐ空間と、前記前気室漏洩孔と前
記電気音響変換器の背面空間とをつなぐ空間とを
分離した電気音響変換器収納装置。1. An electroacoustic transducer having a front air chamber leak hole around the sound wave emission hole in the center of the front side of the case is housed in the handset, and a space connecting the sound wave emission hole and the sound emission hole of the handset and the front air chamber are provided. An electroacoustic transducer storage device in which a space connecting a leak hole and a back space of the electroacoustic transducer is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20405383A JPS6096093A (en) | 1983-10-31 | 1983-10-31 | Electroacoustic transducer container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20405383A JPS6096093A (en) | 1983-10-31 | 1983-10-31 | Electroacoustic transducer container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6096093A JPS6096093A (en) | 1985-05-29 |
| JPH0455040B2 true JPH0455040B2 (en) | 1992-09-02 |
Family
ID=16483965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20405383A Granted JPS6096093A (en) | 1983-10-31 | 1983-10-31 | Electroacoustic transducer container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6096093A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0543600Y2 (en) * | 1986-07-21 | 1993-11-02 | ||
| US5231659A (en) * | 1989-05-16 | 1993-07-27 | Alcatel Business Systems | Telephone handset with transducer assembly |
| BE1011085A4 (en) * | 1997-04-03 | 1999-04-06 | Sonitron Naamloze Vennootschap | ELEMENT FOR PLAYING AND / OR RECORDING SOUND. |
| BE1011559A4 (en) * | 1997-11-20 | 1999-10-05 | Sonitron Naamloze Vennootschap | Element for reproducing and/or recording sound |
-
1983
- 1983-10-31 JP JP20405383A patent/JPS6096093A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6096093A (en) | 1985-05-29 |
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