JPH045743U - - Google Patents
Info
- Publication number
- JPH045743U JPH045743U JP4530090U JP4530090U JPH045743U JP H045743 U JPH045743 U JP H045743U JP 4530090 U JP4530090 U JP 4530090U JP 4530090 U JP4530090 U JP 4530090U JP H045743 U JPH045743 U JP H045743U
- Authority
- JP
- Japan
- Prior art keywords
- air chamber
- front air
- piezoelectric
- receiver
- 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.)
- Pending
Links
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
- Telephone Set Structure (AREA)
Description
第１図ａは本考案の受話器の部分分解斜視図で
あり、第１図ｂは受話器の部分断面図である。第
２図は音域帯域と音圧レベルの特性をしめす特性
図である。第３図は本考案の他の実施例の部分断
面図である。第４図ａは従来の受話器の概略断面
図であり、第４図ｂはその音域帯域と音圧レベル
の特性を示す特性図である。
１，４１……圧電レシーバ、２，４２……ハン
ドセツト、３，４３……金属振動板、４，４４…
…圧電磁器、５，３５……前面ケース、６，３６
……裏面ケース、１１……保持部材、１４……段
差部、１６……漏洩孔。
FIG. 1a is a partially exploded perspective view of the handset of the present invention, and FIG. 1b is a partially sectional view of the handset. FIG. 2 is a characteristic diagram showing the characteristics of the sound range band and the sound pressure level. FIG. 3 is a partial sectional view of another embodiment of the present invention. FIG. 4a is a schematic cross-sectional view of a conventional telephone receiver, and FIG. 4b is a characteristic diagram showing its sound range and sound pressure level characteristics. 1,41...Piezoelectric receiver, 2,42...Handset, 3,43...Metal diaphragm, 4,44...
...Piezoelectric ceramic, 5,35...Front case, 6,36
... Back case, 11 ... Holding member, 14 ... Step portion, 16 ... Leak hole.
Claims (1)
ら成る圧電レシーバを、ハンドセツト内部の保持
部材に装着することによつて、前記圧電レシーバ
の放音側に前気室が形成されるとともに、前記前
気室と前気室以外のハンドセツト内部とを連通す
る漏洩孔が前記保持部材に設けてあることを特徴
とする受話器。 By attaching a piezoelectric receiver made of a piezoelectric element having a piezoelectric ceramic plate attached to a metal diaphragm to a holding member inside the handset, a front air chamber is formed on the sound emitting side of the piezoelectric receiver, and a front air chamber is formed on the sound emitting side of the piezoelectric receiver. A telephone receiver characterized in that the holding member is provided with a leak hole that communicates the front air chamber with the interior of the handset other than the front air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4530090U JPH045743U (en) | 1990-04-28 | 1990-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4530090U JPH045743U (en) | 1990-04-28 | 1990-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH045743U true JPH045743U (en) | 1992-01-20 |
Family
ID=31559354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4530090U Pending JPH045743U (en) | 1990-04-28 | 1990-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045743U (en) |
-
1990
- 1990-04-28 JP JP4530090U patent/JPH045743U/ja active Pending