JPS6316170Y2 - - Google Patents
Info
- Publication number
- JPS6316170Y2 JPS6316170Y2 JP8239080U JP8239080U JPS6316170Y2 JP S6316170 Y2 JPS6316170 Y2 JP S6316170Y2 JP 8239080 U JP8239080 U JP 8239080U JP 8239080 U JP8239080 U JP 8239080U JP S6316170 Y2 JPS6316170 Y2 JP S6316170Y2
- Authority
- JP
- Japan
- Prior art keywords
- tuning fork
- piezoelectric
- metal
- piezoelectric ceramic
- vibrating
- 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
- 239000002184 metal Substances 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
Description
【考案の詳細な説明】
本考案は圧電磁器を金属音叉に接着固定した圧
電音叉に関して、簡単な構造で特性の優れた圧電
音叉を提供することを目的とする。[Detailed Description of the Invention] The present invention relates to a piezoelectric tuning fork in which a piezoelectric ceramic is adhesively fixed to a metal tuning fork, and an object thereof is to provide a piezoelectric tuning fork with a simple structure and excellent characteristics.
以下、第１図及び第２図イ，ロと共に従来の圧
電音叉を説明する。１は金属で構成される金属音
叉で、振動節部近傍に圧電磁器２が貼り合されて
いる。また、端子板３へはアース端子５、出力端
子６、入力端子７が植設されており、前記金属音
叉１は前記アース端子５の一方と溶接等により結
合部４で結合されている。前記端子板３に植設し
てある入、出力端子７，６のそれぞれ一方から圧
電磁器２のそれぞれ一方へリード線８で接続され
ている。 Hereinafter, a conventional piezoelectric tuning fork will be explained with reference to FIG. 1 and FIGS. 2A and 2B. Reference numeral 1 denotes a metal tuning fork made of metal, and a piezoelectric ceramic 2 is bonded near the vibration node. Further, a ground terminal 5, an output terminal 6, and an input terminal 7 are implanted in the terminal plate 3, and the metal tuning fork 1 is coupled to one of the ground terminals 5 at a coupling portion 4 by welding or the like. Each one of the input and output terminals 7 and 6 implanted in the terminal plate 3 is connected to each one of the piezoelectric ceramics 2 by lead wires 8.
従来の金属音叉形状は、第２図イ，ロに示すよ
うに金属からなる音叉１の振動片１ａ，１ｂが互
いに平行に構成され、振動節部近傍が曲げ部９及
び９′で示されるように折り曲げられている。そ
して、振動片１ａ，１ｂの直線部の振動節部近傍
には圧電磁器２が貼り合されている。この場合、
広帯域の圧電音叉を得ようとすると圧電磁器の貼
り合せ位置を金属音叉の振動節部の近くにする必
要があり、そのため金属音叉の彎曲部にかかり圧
電磁器が割れる欠点があつた。また、金属音叉の
曲げ角を小さくすることにより広帯域の圧電音叉
を得ようとすると、金属板の曲げによる歪が発生
して曲げ部９，９′にヒビ及び割れ等が発生する
という成型加工上の問題があつた。 In the conventional metal tuning fork shape, as shown in FIG. 2A and B, the vibrating pieces 1a and 1b of the tuning fork 1 made of metal are configured in parallel to each other, and the vicinity of the vibrating nodes are shown by bent portions 9 and 9'. It is folded into. A piezoelectric ceramic 2 is bonded near the vibration nodes of the straight parts of the vibrating pieces 1a and 1b. in this case,
In order to obtain a piezoelectric tuning fork with a wide band, it is necessary to bond the piezoelectric ceramic close to the vibrating node of the metal tuning fork, which has the disadvantage that the piezoelectric ceramic may break if it hits the curved part of the metal tuning fork. In addition, when attempting to obtain a broadband piezoelectric tuning fork by reducing the bending angle of the metal tuning fork, distortion due to the bending of the metal plate occurs, resulting in cracks and cracks in the bent portions 9 and 9'. There was a problem.
本考案は上記従来の欠点を取り除き、構造が簡
単で量産が容易であり、かつ特性の優れた圧電音
叉を提供しようとするものである。 The present invention aims to eliminate the above-mentioned conventional drawbacks and provide a piezoelectric tuning fork that is simple in structure, easy to mass-produce, and has excellent characteristics.
以下、本考案の一実施例を第３図と共に説明す
る。図において、金属音叉１０の振動節部近傍を
曲げ、この曲げ部１１を前記第１図と同様溶接等
によりアース端子（図示せず）と結合する。そし
て、前記曲げ部１１より振動片１０ａ，１０ｂを
それぞれ直線状に構成し、さらに振動片１０ａ，
１０ｂの中央部近傍を折り曲げ部１２により該２
つの振動片１０ａ，１０ｂが互に平行となるよう
に構成する。このように構成された金属音叉１０
の前記振動節部近傍より直線状に出ているそれぞ
れの振動片１０ａ，１０ｂに圧電磁器１３を貼り
合せている。 An embodiment of the present invention will be described below with reference to FIG. In the figure, the vicinity of the vibration node of a metal tuning fork 10 is bent, and this bent part 11 is connected to a ground terminal (not shown) by welding or the like as in FIG. 1. Then, the vibrating pieces 10a and 10b are formed in a straight line from the bent portion 11, and furthermore, the vibrating pieces 10a and 10b are formed in a straight line.
10b near the center by the bending part 12.
The two vibrating pieces 10a and 10b are configured to be parallel to each other. Metal tuning fork 10 configured in this way
A piezoelectric ceramic 13 is bonded to each vibrating piece 10a, 10b extending linearly from the vicinity of the vibrating node.
この構成によれば、音叉結合部近傍をそれぞれ
直線状に構成し、２つの振動片の中央部近傍を折
り曲げて先端部を互に平行に構成した金属音叉の
結合部と振動片中央部近傍の折り曲げ部間の直線
部に圧電磁器を貼り付けることにより、金属音叉
の振動節部近傍に圧電磁器を貼り合せることがで
きるため、広帯域の特性を持つた圧電音叉を得る
ことができる。 According to this configuration, the vicinity of the coupling part of the tuning fork is formed in a straight line, and the joint part of the metal tuning fork and the vicinity of the center part of the vibrating element are formed by bending the vicinity of the center part of the two vibrating pieces so that their tips are parallel to each other. By pasting the piezoelectric ceramic on the straight line between the bent parts, the piezoelectric ceramic can be pasted near the vibration nodes of the metal tuning fork, thereby making it possible to obtain a piezoelectric tuning fork with broadband characteristics.
第１図は従来例における圧電音叉の斜視図、第
２図イ，ロは同要部拡大上面図、第３図は本考案
の一実施例による圧電音叉の要部拡大上面図であ
る。
１０……金属音叉、１０ａ，１０ｂ……振動
片、１１……結合部の曲げ部、１２……折り曲げ
部、１３……圧電磁器。
FIG. 1 is a perspective view of a conventional piezoelectric tuning fork, FIGS. 2A and 2B are enlarged top views of the same main parts, and FIG. 3 is an enlarged top view of main parts of a piezoelectric tuning fork according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Metal tuning fork, 10a, 10b... Vibrating piece, 11... Bending part of a coupling part, 12... Bending part, 13... Piezoelectric ceramic.
Claims (1)
に圧電磁器を貼り付けた構造の圧電音叉におい
て、音叉結合部近傍をそれぞれ直線状に構成し、
２つの振動片の中央部近傍を折り曲げて先端部を
互に平行に構成した金属音叉の結合部と振動片中
央部近傍の折り曲げ部間の直線部に圧電磁器を貼
り付けたことを特徴とする圧電音叉。 In a piezoelectric tuning fork having a structure in which a piezoelectric ceramic is attached to a tuning fork formed by bending a single metal plate, the vicinity of the tuning fork joint part is configured in a straight line,
A piezoelectric ceramic is attached to the joint part of the metal tuning fork formed by bending the central part of two vibrating pieces so that the tips thereof are parallel to each other, and the straight part between the bent part near the central part of the vibrating piece. Piezoelectric tuning fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8239080U JPS6316170Y2 (en) | 1980-06-11 | 1980-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8239080U JPS6316170Y2 (en) | 1980-06-11 | 1980-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS574820U JPS574820U (en) | 1982-01-11 |
| JPS6316170Y2 true JPS6316170Y2 (en) | 1988-05-09 |
Family
ID=29444746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8239080U Expired JPS6316170Y2 (en) | 1980-06-11 | 1980-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316170Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI124103B (en) * | 2010-02-22 | 2014-03-14 | Murata Electronics Oy | Improved micromechanical construction for a resonator |
-
1980
- 1980-06-11 JP JP8239080U patent/JPS6316170Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS574820U (en) | 1982-01-11 |
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