JPS59126400A - Transmitter and receiver for telephone set - Google Patents
Transmitter and receiver for telephone setInfo
- Publication number
- JPS59126400A JPS59126400A JP22485682A JP22485682A JPS59126400A JP S59126400 A JPS59126400 A JP S59126400A JP 22485682 A JP22485682 A JP 22485682A JP 22485682 A JP22485682 A JP 22485682A JP S59126400 A JPS59126400 A JP S59126400A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- back cover
- frame
- transmitter
- air chamber
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Telephone Set Structure (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 （１） 発明の技術分野 本発明は電話機用の送話器または受話器に関する。[Detailed description of the invention] (1) Technical field of the invention The present invention relates to a handset or handset for a telephone.
【２）従来技術と問題点
従来、電話機用の送話器としてはカーボン型、電磁型、
動電型、また受話器としては電磁形、動電型等の種々の
タイプがある。[2] Conventional technology and problems Conventionally, as transmitters for telephones, carbon type, electromagnetic type,
There are various types of telephone receivers, such as electrodynamic type and electrodynamic type.
しかし、これら従来のタイプは、部品点数が多く且つ部
品の精密加工を要し、小形＠腋化、低コスト化が図りに
〈＾という問題がある。However, these conventional types have the problem of having a large number of parts and requiring precision machining of the parts, making it difficult to achieve miniaturization and cost reduction.
（３）発明の目的
本発明の目的は、小形軽量且つ低コストの新規な電話機
用送受話器を提供することにある。(3) Purpose of the Invention An object of the present invention is to provide a novel telephone handset that is small, lightweight, and low cost.
（４） 発明の構成
本発明は、基本的には、音圧を電気信号に（送話器の場
合）または電気信号を音圧に（受話器の場合）それぞれ
変換する振動子として、振動板にセラミック圧電素子を
一体化してなるセラミック圧電素子付き振動板を使用す
ることにより、部品数の低減、構造の簡略化を図り、上
記の目的を達成するようにしたものである。(4) Structure of the Invention The present invention basically uses a diaphragm as a vibrator that converts sound pressure into an electric signal (in the case of a transmitter) or an electric signal into sound pressure (in the case of a handset). By using a diaphragm with a ceramic piezoelectric element formed by integrating a ceramic piezoelectric element, the number of parts can be reduced, the structure can be simplified, and the above objects can be achieved.
すなわち本発明による送受話器は、上記のようなセラミ
ック圧電素子付き振動板からなる振動子と、印刷配線板
から成るバックカバ・−とをフレーム内に振動子の前後
にそれぞれ前気室および後気室が１つずつ形成される如
く組み付け、振動子の振動板全フレームを介して、ま之
振動子のセラミック圧電素子全導線を介してそれぞれバ
ックカバーの導体パターンに接続すると共に、該バック
カバーの導体パターンに外部回路全接続した構造とした
ものである。That is, the handset according to the present invention includes a vibrator made of a diaphragm with a ceramic piezoelectric element as described above, and a back cover made of a printed wiring board in a frame, and a front air chamber and a rear air chamber are provided in front and behind the vibrator, respectively. The ceramic piezoelectric elements of the main vibrator are connected to the conductor pattern of the back cover through the entire frame of the vibrator's diaphragm, and the ceramic piezoelectric element of the main vibrator is connected to the conductor pattern of the back cover. It has a structure in which all external circuits are connected to the pattern.
（５）発明の実施例
以下、本発明の実施例につき図面全参照して詳細に説明
する。(5) Embodiments of the invention Hereinafter, embodiments of the invention will be described in detail with reference to all the drawings.
図は本発明の一実施例である電話機用送受器全示し、第
１図が縦断面図、第２図が底面図、第３図が分解状態で
の底面側からの斜視図である。The figures show a telephone handset as an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a bottom view, and FIG. 3 is a perspective view from the bottom side in an exploded state.
この送話器は基本的にはフレームｌ、振動子２、スペー
サ３、バックカバー４から構成されている。This transmitter basically consists of a frame 1, a vibrator 2, a spacer 3, and a back cover 4.
フレームｌは金稍材料から作られ、下部環状壁ｌａ及び
」二部カバ一部分ｌｂｋ有し、上部カバ一部分ｌｂには
通気孔ＩＣが形成さｎている。振動子２に金属の振動板
２ａの下面にセラミック圧電素子２ｂ（！″−一体的り
付けたものであり、一般にはユニモルフ振動子と称され
ているものである０ユニモルフ振動子は従来から電子ブ
ザー等に使用（３）
されていたが、近年は音声帯域にも使用できる低周波用
が実用化されている。スペーサ３はリング形状のもので
ある。バックカバー４は印刷配線板から作られていて、
下面に回路素子５が実装され且つ外部回路６が接続され
る。The frame l is made of a metallic material and has a lower annular wall la and a two-part cover part lbk, with a vent hole IC formed in the upper cover part lbk. A ceramic piezoelectric element 2b (!''-) is integrally attached to the bottom surface of a metal diaphragm 2a to the vibrator 2, and is generally referred to as a unimorph vibrator.Unimorph vibrators have traditionally been electronic It was originally used for buzzers, etc. (3), but in recent years, low-frequency products that can also be used in the audio band have been put into practical use.The spacer 3 is ring-shaped.The back cover 4 is made from a printed wiring board. and
A circuit element 5 is mounted on the bottom surface and an external circuit 6 is connected.
振動子２、スペーサ３およびバックカバー４はフレーム
ｌ内に第１図に示す如く組み付けられ、そしてフレーム
ｌの下部環状壁１ａの下縁ヶかしめることによって固定
深持される。こｎにより、振動子２の前後、すなわち振
動子２とフレーム上部カバ一部分ｉｂとの間および振動
子２とバックカバー４との間にそれぞれ前気室Ａおよび
後気室Ｂが１つずつ形成される。また、振動子２の低動
板２ａの上面はフレーム１の段付部内面に接触し、そし
てフレーム下部環状壁１ａのかしめ部がバックカバー４
の導体パターン（図示せず）に接触しているので、振動
板２ａはフレームｌを介してバックカバー４の回路素子
に接続されることになる。The vibrator 2, the spacer 3, and the back cover 4 are assembled within the frame 1 as shown in FIG. 1, and are fixedly supported by caulking the lower edge of the lower annular wall 1a of the frame 1. As a result, one front air chamber A and one rear air chamber B are formed before and after the vibrator 2, that is, between the vibrator 2 and the frame upper cover part ib, and between the vibrator 2 and the back cover 4. be done. Further, the upper surface of the low motion plate 2a of the vibrator 2 contacts the inner surface of the stepped portion of the frame 1, and the caulked portion of the frame lower annular wall 1a contacts the back cover 4.
Since the diaphragm 2a is in contact with the conductor pattern (not shown) of the diaphragm 2a, the diaphragm 2a is connected to the circuit element of the back cover 4 via the frame l.
一方、振動子２のセラミック圧電素子２ｂは導線によっ
てバックカバー４の導体パターンに接続さく４）
され回路素子５に接続される。On the other hand, the ceramic piezoelectric element 2b of the vibrator 2 is connected to the conductive pattern of the back cover 4 by a conductive wire (4) and then connected to the circuit element 5.
以上のような構成によれば、部品数が少なく、部品の加
工も高精度を必要としないので、低コスト化が可能であ
る。According to the above configuration, the number of parts is small and the processing of the parts does not require high precision, so that costs can be reduced.
また、ユニモルフ振動子を用いてその前後に前気室及び
後気室を各１つずつ形成しであるだけなので、構造が簡
単で小形軽量化が可能である。Further, since a unimorph vibrator is used and only one front air chamber and one rear air chamber are formed at the front and rear of the unimorph vibrator, the structure is simple and the device can be made smaller and lighter.
更に、バックカバーを印刷配線板で構成しであるので、
図示例の如くこれに回路素子全実装することができる。Furthermore, since the back cover is made of a printed wiring board,
All circuit elements can be mounted on this as shown in the illustrated example.
これは特に送話器においてその特性向上に有効である。This is particularly effective in improving the characteristics of a transmitter.
すなわち、送話器の場合、振動子と回路素子との距離が
長いとインピーダンスが高くなって雑音が生じる。しか
るに図示例の如くバックカバーに回路素子を実装できれ
ば、撮動子との距ｍｔ最小限に短縮でき、低インピーダ
ンスを実現し得る。これにより雑音の少ない高性能の送
話器が得られる。一方、受話器の場合はこのような問題
がなく、回路素子金バックカバーに実装する必要はない
。That is, in the case of a transmitter, if the distance between the vibrator and the circuit element is long, the impedance increases and noise is generated. However, if the circuit elements can be mounted on the back cover as in the illustrated example, the distance mt to the camera element can be shortened to the minimum, and low impedance can be realized. As a result, a high-performance transmitter with less noise can be obtained. On the other hand, in the case of a handset, there is no such problem and there is no need to mount the circuit elements on the gold back cover.
尚、図示例においてはバックカバー４にも通気孔８を設
け、この孔に不織布で作った音響膜９を取り付けて、音
響特性の改善を図っている。In the illustrated example, a ventilation hole 8 is also provided in the back cover 4, and an acoustic membrane 9 made of nonwoven fabric is attached to this hole to improve the acoustic characteristics.
また、図示例は送話器の場合であるが、この構造は前気
室や後気室の容量などを適宜選定することにより、受話
器にも適用可能である。Further, although the illustrated example is a case of a transmitter, this structure can also be applied to a receiver by appropriately selecting the capacities of the front air chamber and the rear air chamber.
（６）発明の効果
以上のように、本発明によれば小形軽量、安価にして且
つ高性能の電話機用送受話器を実現し得る。(6) Effects of the Invention As described above, according to the present invention, it is possible to realize a telephone handset that is small, lightweight, inexpensive, and has high performance.
【図面の簡単な説明】
図は本発明の一実施例である電話機用送話器を示し、第
１図が縦断面図、第２図が底面図、第３図が分解状態で
の底面側からの斜視図である。
ｌ・・・・・・フレーム、２・・・−・・振動子、２ａ
・・・・・・振動板、２ｂ・・・・・・セラミック圧電
素子、３・・・・・・スペーサ、４・・・・・・バック
カバー、５・・・・・・回路素子、６・・・外部回路、
７・・・・・・導線、Ａ・・・・・・前気室、Ｂ・・・
・・・後気室。
第１図
第２０ 。
第３図
）ｂ[BRIEF DESCRIPTION OF THE DRAWINGS] The figures show a telephone transmitter which is an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view, Fig. 2 is a bottom view, and Fig. 3 is a bottom side in an exploded state. FIG. l... Frame, 2...-- Vibrator, 2a
...Vibration plate, 2b...Ceramic piezoelectric element, 3...Spacer, 4...Back cover, 5...Circuit element, 6 ...external circuit,
7... Conductor, A... Front air chamber, B...
...Rear air chamber. Figure 1, Figure 20. Figure 3)b
Claims (1)
、印刷配線板から成るバックカバーとをフレーム内に振
動子の前後にそれぞれ前気室および後気室が１つずつ形
成される如く組み付け、振動子の振動板をフレームを介
して、また振動子のセラミック圧電素子を導線を介して
それぞれバックカバーの導体パターンに接続すると共に
、該バックカバーの導体パターンに外部回路を接続した
ことを特徴とする電話機用送受話器。1. A vibrator made of a diaphragm with a ceramic piezoelectric element and a back cover made of a printed wiring board are assembled in a frame so that one front air chamber and one rear air chamber are formed at the front and rear of the vibrator, respectively, and the vibrator is vibrated. The diaphragm of the child is connected to the conductor pattern of the back cover via the frame, and the ceramic piezoelectric element of the vibrator is connected to the conductor pattern of the back cover via the conductive wire, and an external circuit is connected to the conductor pattern of the back cover. Handset for telephone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22485682A JPS59126400A (en) | 1982-12-23 | 1982-12-23 | Transmitter and receiver for telephone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22485682A JPS59126400A (en) | 1982-12-23 | 1982-12-23 | Transmitter and receiver for telephone set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59126400A true JPS59126400A (en) | 1984-07-20 |
Family
ID=16820234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22485682A Pending JPS59126400A (en) | 1982-12-23 | 1982-12-23 | Transmitter and receiver for telephone set |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59126400A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61202956U (en) * | 1985-06-07 | 1986-12-20 | ||
| JPS62203453A (en) * | 1986-03-04 | 1987-09-08 | Tamura Electric Works Ltd | Noise preventing type transmitter |
| JPS62203452A (en) * | 1986-03-04 | 1987-09-08 | Tamura Electric Works Ltd | Noise preventing type transmitter |
-
1982
- 1982-12-23 JP JP22485682A patent/JPS59126400A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61202956U (en) * | 1985-06-07 | 1986-12-20 | ||
| JPS62203453A (en) * | 1986-03-04 | 1987-09-08 | Tamura Electric Works Ltd | Noise preventing type transmitter |
| JPS62203452A (en) * | 1986-03-04 | 1987-09-08 | Tamura Electric Works Ltd | Noise preventing type transmitter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1169886B1 (en) | Microphone for a hearing aid | |
| US4504703A (en) | Electro-acoustic transducer | |
| US4109116A (en) | Hearing aid receiver with plural transducers | |
| EP0107843B1 (en) | Acceleration vibration detector | |
| US6744896B2 (en) | Electret microphone | |
| US7873176B2 (en) | Electrostatic microphone | |
| CA1200308A (en) | Directional microphone assembly | |
| US2718563A (en) | Microphone | |
| CN100355259C (en) | Structural arrangement for a wireless communication terminal including loudspeaker and earphone | |
| JPS5881000A (en) | Electret microphone shield | |
| US4511768A (en) | Mounting arrangement for altering a microphone's frequency response | |
| US6975736B2 (en) | Microphone | |
| JPS59126400A (en) | Transmitter and receiver for telephone set | |
| US4038502A (en) | Acoustic coupling structure for microphone | |
| JPS6133508B2 (en) | ||
| CN212628316U (en) | Speaker unit with microphone | |
| CN210629786U (en) | Microphone packaging structure of multisensor | |
| KR100437681B1 (en) | Directional microphone | |
| JP4639561B2 (en) | Condenser microphone | |
| JP2006166151A (en) | Loudspeaker for stereo set | |
| JP2957481B2 (en) | Mounting structure of acoustic components | |
| JP3856665B2 (en) | Microphone holder | |
| JP2001309007A (en) | Sound transducer | |
| WO1998048595A1 (en) | Electronic appliance comprising an electroacoustic transducer | |
| JPH0728800Y2 (en) | Piezoelectric transmitter |