JPH01132156U - - Google Patents
Info
- Publication number
- JPH01132156U JPH01132156U JP2717488U JP2717488U JPH01132156U JP H01132156 U JPH01132156 U JP H01132156U JP 2717488 U JP2717488 U JP 2717488U JP 2717488 U JP2717488 U JP 2717488U JP H01132156 U JPH01132156 U JP H01132156U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric vibrator
- space
- air chamber
- receiver
- chamber plate
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Telephone Set Structure (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図は本考案の一実施例による電話用送受話
器の構造を示す断面図、第２図は本考案の一実施
例による電話用送受話器の受話器部分の拡大断面
図、第３図は従来の電話用送受話器の構造を示す
断面図である。
６…上ケース、７…下ケース、８…入出力コネ
クタ、９…送話器、１０…プリアンプ、１１…受
話器、１２…リング状突起、１３…段部、１４…
固定部、１５…放音孔、１６…セラミツク圧電体
、１７…金属板、１８…背気室板、１９…リード
線、２０…音孔、２１…小孔、２２…音響抵抗材
、２３…緩衝材、２４…前気室板、２５…固定金
具、２６…ネジ、２７…ネジポスト。
FIG. 1 is a sectional view showing the structure of a telephone handset according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the receiver portion of a telephone handset according to an embodiment of the present invention, and FIG. 3 is a conventional FIG. 2 is a sectional view showing the structure of a telephone handset. 6... Upper case, 7... Lower case, 8... Input/output connector, 9... Transmitter, 10... Preamplifier, 11... Handset, 12... Ring-shaped projection, 13... Step part, 14...
Fixed part, 15...Sound emission hole, 16...Ceramic piezoelectric body, 17...Metal plate, 18...Back air chamber plate, 19...Lead wire, 20...Sound hole, 21...Small hole, 22...Acoustic resistance material, 23... Cushioning material, 24... Front air chamber plate, 25... Fixing metal fittings, 26... Screw, 27... Screw post.
Claims (1)
振動子と、前記圧電振動子への入出力手段と、前
記圧電振動子との間に第１の空間を形成し、通気
量を制御する小孔を有する背気室板と、前記圧電
振動子との間に第１の空間とは反対側に第２の空
間を形成し、音孔を有する前気室板とを、ハンド
セツトの下ケースの送話部・受話部の少なくとも
一方の内側底部に設けたリング状突起の中段に形
成した段部に挿入固定した電話用送受話器。 A first space is formed between a piezoelectric vibrator made of a ceramic piezoelectric material bonded to a metal plate, an input/output means for the piezoelectric vibrator, and the piezoelectric vibrator, and a small hole is provided to control the amount of ventilation. A second space is formed on the opposite side of the first space between the back air chamber plate having the sound hole and the piezoelectric vibrator, and the front air chamber plate having the sound hole is connected to the lower case of the handset. A telephone handset inserted and fixed into a step formed in the middle of a ring-shaped protrusion provided on the inner bottom of at least one of the receiver and the receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2717488U JPH073710Y2 (en) | 1988-03-01 | 1988-03-01 | Telephone handset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2717488U JPH073710Y2 (en) | 1988-03-01 | 1988-03-01 | Telephone handset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01132156U true JPH01132156U (en) | 1989-09-07 |
| JPH073710Y2 JPH073710Y2 (en) | 1995-01-30 |
Family
ID=31249438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2717488U Expired - Lifetime JPH073710Y2 (en) | 1988-03-01 | 1988-03-01 | Telephone handset |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073710Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04128497U (en) * | 1991-05-18 | 1992-11-24 | 太陽誘電株式会社 | Piezoelectric acoustic device |
-
1988
- 1988-03-01 JP JP2717488U patent/JPH073710Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04128497U (en) * | 1991-05-18 | 1992-11-24 | 太陽誘電株式会社 | Piezoelectric acoustic device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH073710Y2 (en) | 1995-01-30 |
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