JPS63178997U - - Google Patents
Info
- Publication number
- JPS63178997U JPS63178997U JP6846487U JP6846487U JPS63178997U JP S63178997 U JPS63178997 U JP S63178997U JP 6846487 U JP6846487 U JP 6846487U JP 6846487 U JP6846487 U JP 6846487U JP S63178997 U JPS63178997 U JP S63178997U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- diaphragm
- circuit board
- printed circuit
- outer side
- 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
- 239000004744 fabric Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 1
Description
第１〜５図は本考案の実施例を示し、第１図は
ユニツトの平面図、第２図は第１図のＡ―Ａ断面
図、第３図はフレームの斜視図、第４図は重ねた
フレーム、振動板の平面図、第５図は振動板の別
例を示す平面図、第６図は従来のユニツトの第２
図同様の断面図、第７図は、これのフレームの平
面図である。
１：圧電素子、２：振動板、３：フレーム、３
ａ：段部、４：抑えリング、５：ケーシング、６
：プリント基板、６ａ，６ｂ：端子、７：通孔、
８：音響抵抗布、９，１０：音溝、１１：音孔、
１２：第一室、１３：第二室、１４：第三室、１
５：導線、１６：内面突起、１７：段部、１８：
受部、１９：切欠き部、２０：空間。
Figures 1 to 5 show an embodiment of the present invention, Figure 1 is a plan view of the unit, Figure 2 is a sectional view taken along line AA in Figure 1, Figure 3 is a perspective view of the frame, and Figure 4 is a plan view of the unit. A plan view of the stacked frames and diaphragm, Fig. 5 is a plan view showing another example of the diaphragm, and Fig. 6 is a plan view of the second example of the conventional unit.
FIG. 7 is a sectional view similar to the one shown in the figure, and a plan view of the frame thereof. 1: piezoelectric element, 2: diaphragm, 3: frame, 3
a: Stepped portion, 4: Holding ring, 5: Casing, 6
: Printed circuit board, 6a, 6b: terminal, 7: through hole,
8: Acoustic resistance cloth, 9, 10: Sound groove, 11: Sound hole,
12: First room, 13: Second room, 14: Third room, 1
5: Conductor, 16: Inner protrusion, 17: Step, 18:
Receiving part, 19: Notch part, 20: Space.
Claims (1)
断面形が扁平Ｈ状をなし音響抵抗布８で覆われた
通孔７を内部に設けたフレーム３に載せ、これと
プリント基板６とを重ねて、閉塞した一端に音孔
１１を設けた筒状ケーシング５に嵌合させ、ケー
シング５の開口端をかしめて振動板２、フレーム
３、プリント基板６を結合した圧電型電気音響変
換ユニツトにおいて、フレーム３の外側部に段部
１７を形成して、高くなつた内側部の受部１８に
載せる振動板２と段部１７との間に空間２０を形
成させ、空間２０をフレーム内部に通じさせる複
数の音溝９をフレーム３の外側部に形成し、振動
板２の縁に切欠き部１９を形成し、ケーシング５
に振動板２の縁をフレームの受部１８に押し付け
る内面突起１６を断続させて形成した圧電型電気
音響変換ユニツト。 A diaphragm 2 to which a thin plate-like piezoelectric element 1 is attached is placed on a frame 3 having a flat H-shaped vertical cross section and a through hole 7 covered with an acoustic resistance cloth 8, and a printed circuit board 6 piezoelectric electroacoustic transducer in which the diaphragm 2, frame 3, and printed circuit board 6 are combined by stacking them and fitting them into a cylindrical casing 5 having a sound hole 11 at one closed end, and caulking the open end of the casing 5. In the unit, a step 17 is formed on the outer side of the frame 3, and a space 20 is formed between the step 17 and the diaphragm 2 placed on the raised inner receiving portion 18, and the space 20 is formed inside the frame. A plurality of sound grooves 9 are formed on the outer side of the frame 3, and a notch 19 is formed on the edge of the diaphragm 2.
A piezoelectric electroacoustic transducer unit is formed by intermittent inner protrusions 16 that press the edge of the diaphragm 2 against the receiving part 18 of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6846487U JPH054391Y2 (en) | 1987-05-09 | 1987-05-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6846487U JPH054391Y2 (en) | 1987-05-09 | 1987-05-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63178997U true JPS63178997U (en) | 1988-11-18 |
| JPH054391Y2 JPH054391Y2 (en) | 1993-02-03 |
Family
ID=30908302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6846487U Expired - Lifetime JPH054391Y2 (en) | 1987-05-09 | 1987-05-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH054391Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015083305A (en) * | 2013-09-20 | 2015-04-30 | 新シコー科技株式会社 | Linear drive device, and electronic apparatus and body mounted article using linear drive device |
-
1987
- 1987-05-09 JP JP6846487U patent/JPH054391Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015083305A (en) * | 2013-09-20 | 2015-04-30 | 新シコー科技株式会社 | Linear drive device, and electronic apparatus and body mounted article using linear drive device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054391Y2 (en) | 1993-02-03 |
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