JPH0352036Y2 - - Google Patents
Info
- Publication number
- JPH0352036Y2 JPH0352036Y2 JP1985043017U JP4301785U JPH0352036Y2 JP H0352036 Y2 JPH0352036 Y2 JP H0352036Y2 JP 1985043017 U JP1985043017 U JP 1985043017U JP 4301785 U JP4301785 U JP 4301785U JP H0352036 Y2 JPH0352036 Y2 JP H0352036Y2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric resonator
- reinforcing member
- piezoelectric
- main body
- terminal
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 238000004080 punching Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は、例えば共振器、発振器やフイルタな
どとされる圧電部品に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to piezoelectric components such as resonators, oscillators, and filters.
〈従来の技術〉
従来、この種の圧電部品として、例えば第５図
に示されるような圧電共振子がある。<Prior Art> Conventionally, as this type of piezoelectric component, there is a piezoelectric resonator as shown in FIG. 5, for example.
この圧電共振子は、いわゆる厚み滑り振動モー
ドを有するエネルギー閉じ込め型と呼ばれるもの
であり、互いに対称形となるように形成された一
対の端子板４，４を備え、各端子板４，４はそれ
ぞれ金属平板を打ち抜いて端子板パターンを形成
した後、該パターン上端部を袋状に曲げ加工して
成形されたものであつて、両端子板４，４の袋状
保持部５，５間に短冊状の圧電共振子本体１を橋
架状に保持するとともに、両保持部５，５と前記
圧電共振子本体１の両端部とを半田付けして、圧
電共振子本体１と各リード脚６，６とを接続固定
している。そして、図示しないが、両リード脚
６，６に固定された圧電共振子本体１をワツクス
掛けした後、粉体塗装やデイツピング等により樹
脂外装を施して完成する。なお、一般的に、前記
のワツクスによつて外装樹脂において圧電共振子
本体１の周囲には空洞（振動空間）が形成される
よう、外装樹脂の素材が選定される。 This piezoelectric resonator is of the so-called energy trap type having a so-called thickness shear vibration mode, and includes a pair of terminal plates 4, 4 formed symmetrically to each other, each terminal plate 4, 4 having a thickness-shear vibration mode. After punching out a flat metal plate to form a terminal plate pattern, the upper end of the pattern is bent into a bag shape. The piezoelectric resonator body 1 is held in a bridge shape, and both holding parts 5 and both ends of the piezoelectric resonator body 1 are soldered to each other. The connection is fixed. Although not shown, the piezoelectric resonator body 1 fixed to both lead legs 6, 6 is waxed, and then a resin exterior is applied by powder coating, dipping, etc. to complete the piezoelectric resonator body 1. Generally, the material of the exterior resin is selected so that a cavity (vibration space) is formed around the piezoelectric resonator main body 1 in the exterior resin using the wax described above.
〈考案が解決しようとする問題点〉
このような構造を有する従来例の圧電部品の場
合、次のような不都合がある。<Problems to be solved by the invention> Conventional piezoelectric components having such a structure have the following disadvantages.
外装処理加工前の未完成品の段階において、例
えば第５図の矢印ａ，ａに示すように、両リード
脚６，６を外側に拡開する方向へ外力が作用した
り、あるいは矢印ｂ，ｂに示すように、両リード
脚６，６を回転させる方向へ外力が作用すると、
両リード脚６，６間に橋架された圧電共振子本体
１に剪断応力またはねじれの応力が集中して、該
圧電共振子本体１にクラツクが生じたり、あるい
はリード脚６，６が変形するおそれがあるといつ
た問題点がある。 At the stage of an unfinished product before exterior processing, for example, as shown by arrows a and a in FIG. As shown in b, when an external force acts in the direction of rotating both lead legs 6, 6,
There is a risk that shear stress or torsional stress will concentrate on the piezoelectric resonator body 1 bridged between both lead legs 6, 6, causing cracks in the piezoelectric resonator body 1, or deforming the lead legs 6, 6. There is a problem with that.
また、外装樹脂として、一般的に、多孔質で比
較的軟らかいものを選定するので、外装樹脂をモ
ールドした後の完成品であつても、リード脚６，
６に外力が作用すると、圧電共振子本体１に対し
て応力がかかりやすくなり、上記同様の問題点が
生じる。 In addition, since a porous and relatively soft material is generally selected as the exterior resin, even if the finished product is made after molding the exterior resin, the lead legs 6,
When an external force acts on the piezoelectric resonator body 1, stress is likely to be applied to the piezoelectric resonator body 1, resulting in the same problem as described above.
本考案はかかる従来の問題点に鑑み、一対の端
子板および、この端子板間に保持された圧電共振
子本体を外力から保護することを目的とする。 In view of these conventional problems, it is an object of the present invention to protect a pair of terminal plates and a piezoelectric resonator body held between the terminal plates from external forces.
〈問題点を解決するための手段〉
本考案は、このような目的を達成するために、
次のような構成をとる。<Means for solving the problem> In order to achieve the above purpose, the present invention
It has the following structure.
本考案の圧電部品は、互いに対向して配置され
る一対の端子板と、これら両端子板間に保持され
る圧電共振子本体と、前記両端子板のリード脚の
途中部間に架設される補強部材と、前記両端子板
に保持される圧電共振子本体および補強部材を、
該圧電共振子本体の周囲に振動空間を形成するよ
うモールドする外装樹脂とを備えていることに特
徴を有する。 The piezoelectric component of the present invention includes a pair of terminal plates arranged opposite to each other, a piezoelectric resonator main body held between these two terminal plates, and a piezoelectric resonator body installed between the middle portions of lead legs of both the terminal plates. a reinforcing member, a piezoelectric resonator main body held by both terminal plates, and a reinforcing member;
The piezoelectric resonator body is characterized in that it includes an exterior resin molded to form a vibration space around the piezoelectric resonator body.
前記補強部材は、抵抗チツプやコンデンサチツ
プなどの電子部品類としてもよい。 The reinforcing member may be an electronic component such as a resistor chip or a capacitor chip.
〈実施例〉
以下、本考案を図面に示す実施例に基づき詳細
に説明する。なお、この実施例では、圧電共振子
に適用して示す。<Example> Hereinafter, the present invention will be described in detail based on an example shown in the drawings. Note that in this embodiment, the present invention is applied to a piezoelectric resonator.
第１図は本考案の一実施例の斜視図であり、第
２図はその中央縦断側面図である。これらの図に
おいて、符号１は圧電共振子本体であつて、この
圧電共振子本体１は短冊状に形成されたセラミツ
ク圧電基板２の両主表面にそれぞれ電極３，３
を、該基板２を挟んで部分的に対向する状態で形
成してなる、いわゆる厚み滑り振動モードを有す
るエネルギー閉じ込め型と呼ばれるものである。 FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a side view in longitudinal section of the center thereof. In these figures, reference numeral 1 denotes a piezoelectric resonator body, and this piezoelectric resonator body 1 has electrodes 3, 3 on both main surfaces of a ceramic piezoelectric substrate 2 formed in a strip shape.
are formed so as to partially face each other with the substrate 2 in between, and are of the so-called energy trapping type having a so-called thickness shear vibration mode.
この圧電共振子本体１は長手方向の両端部を１
対の端子板４，４に保持されている。これら１対
の端子板４，４はそれぞれ互いに対称形となるよ
うに形成されている。各端子板４，４はそれぞれ
１枚の金属平板からパターン状に打ち抜き形成さ
れる。 This piezoelectric resonator main body 1 has both ends in the longitudinal direction at 1
It is held by a pair of terminal plates 4, 4. These pair of terminal plates 4, 4 are each formed symmetrically with respect to each other. Each of the terminal plates 4, 4 is formed by punching out a pattern from a single metal flat plate.
第３図は一方の端子板４の打ち抜きパターンの
展開図である。この図において、この端子板パタ
ーン４ａは、その上端部に圧電共振子本体１の保
持部パターン５ａが形成されるとともに、この保
持部パターン５ａの下端部には切込みC1を介し
てリード脚６が延出形成されている。前記保持部
パターン５ａは切込みC1より上の部分がＵ字状
に曲成されるとともに、新曲線1より下の部分
がＵ字状部分の下端に沿うように折り曲げられ
て、袋状の保持部５が形成される。また、前記リ
ード脚６はその上半部分で鈎状に屈曲しており、
この屈曲部よりやや下方側に係合部パターン７ａ
が形成されている。この係合部パターン７ａはリ
ード脚６の内側に張り出し形成された鍔部８を有
し、この鍔部８の横方向の中間部２箇所に形成さ
れた切込みC2，C3に挟まれた部分が、第３図上、
手前側に折り起こされて係合部７が形成される。
なお、他方の端子板４も同様に構成される。 FIG. 3 is a developed view of the punching pattern of one terminal plate 4. FIG. In this figure, this terminal plate pattern 4a has a holding part pattern 5a of the piezoelectric resonator main body 1 formed at its upper end, and a lead leg 6 through a notch C1 at the lower end of this holding part pattern 5a. is formed to extend. The holding portion pattern 5a has a portion above the cut C 1 that is bent into a U-shape, and a portion below the new curve 1 that is bent along the lower edge of the U-shaped portion to form a bag-shaped holding portion. Section 5 is formed. Further, the lead leg 6 is bent in a hook shape at its upper half,
An engaging part pattern 7a is located slightly below this bent part.
is formed. This engagement part pattern 7a has a flange part 8 formed to project from the inside of the lead leg 6, and is sandwiched between two notches C 2 and C 3 formed in the middle part of the flange part 8 in the lateral direction. The part shown in Figure 3 is
The engaging portion 7 is formed by folding up toward the front side.
Note that the other terminal board 4 is similarly configured.
このように構成された両端子板４，４は前記保
持部５と係合部７とが互いに対向するように配置
され、両保持部５には前記圧電共振子本体１の両
端部が嵌め込まれた後、半田付けや導電ペイント
等により電気的、機械的に接続される。また、両
係合部７，７間には補強部材９が架設される。こ
の補強部材９は横長長方形板状の絶縁樹脂からな
る成型品であつて、その両端部が前記各係合部
７，７に係合挟持されている。 Both terminal plates 4, 4 configured in this manner are arranged such that the holding part 5 and the engaging part 7 face each other, and both ends of the piezoelectric resonator main body 1 are fitted into both the holding parts 5. After that, they are electrically and mechanically connected by soldering or conductive paint. Further, a reinforcing member 9 is installed between both the engaging portions 7, 7. This reinforcing member 9 is a molded product made of insulating resin in the shape of a horizontally long rectangular plate, and both ends of the reinforcing member 9 are engaged and held by the respective engaging portions 7, 7.
このようにして両リード脚６，６に組み付けら
れた圧電共振子本体１はその外表面にワツクスを
塗布された状態で、粉体塗装やデイツピング等の
手法により樹脂外装が施される。これにより、該
外装樹脂１０内へワツクスが溶解流出し、このワ
ツクス流出後の空間が圧電共振子本体１の振動空
間Ｓとなる。ところで、このような振動空間Ｓを
形成する場合に用いる外装樹脂１０としては、一
般的に、多孔質で比較的軟らかいものが選定され
る。 The piezoelectric resonator main body 1 assembled to both lead legs 6, 6 in this manner is coated with resin by a technique such as powder coating or dipping, with wax applied to its outer surface. As a result, the wax melts and flows into the exterior resin 10, and the space after this wax flows becomes the vibration space S of the piezoelectric resonator body 1. By the way, as the exterior resin 10 used when forming such a vibration space S, a porous and relatively soft material is generally selected.
このような外装樹脂１０はそもそも軟らかいの
で、リード脚６，６に外力が作用すると、圧電共
振子本体１に対して応力がかかりやすくなると考
えられるが、上述したように、端子板４，４が補
強部材９によつて補強されているから、外装樹脂
１０が軟らかくとも、リード脚６，６に作用する
外力が圧電共振子本体１に及ばなくなる。また、
外装処理加工前の未完成品の段階においても、前
記同様に、圧電共振子本体１に外力がかかりにく
くなる。 Since such an exterior resin 10 is soft to begin with, it is thought that stress is likely to be applied to the piezoelectric resonator main body 1 when an external force acts on the lead legs 6, 6. However, as described above, the terminal plates 4, 4 Since it is reinforced by the reinforcing member 9, even if the exterior resin 10 is soft, the external force acting on the lead legs 6, 6 will not reach the piezoelectric resonator body 1. Also,
Even when the piezoelectric resonator body 1 is an unfinished product before being subjected to exterior treatment, external force is less likely to be applied to the piezoelectric resonator main body 1, as described above.
第４図は本考案の他の実施例の要部分解斜視図
である。この実施例の圧電部品では、横長長方形
板状に形成された補強部材９の一方の主表面の両
端部にリブ１１，１１（図では一方のみを表示）
を突出形成してある。また、端子板４，４の鍔部
８の上端部分が保持部５に向かう方向に折り曲げ
られている。これによつて、前記補強部材９は各
リブ１１，１１が係合部７，７を形成してできた
溝１２に嵌め込まれた状態において保持され、装
着位置からの抜落ちが阻止される。 FIG. 4 is an exploded perspective view of essential parts of another embodiment of the present invention. In the piezoelectric component of this embodiment, ribs 11, 11 (only one is shown in the figure) are provided at both ends of one main surface of the reinforcing member 9 formed in the shape of a horizontally long rectangular plate.
is formed protrudingly. Further, the upper end portions of the flanges 8 of the terminal plates 4, 4 are bent in the direction toward the holding portion 5. As a result, the reinforcing member 9 is held in a state where it is fitted into the groove 12 formed by the respective ribs 11, 11 forming the engaging portions 7, 7, and is prevented from falling off from the mounting position.
また、前記補強部材９の他方の主表面には例え
ば抵抗線１３が印刷形成されており、この抵抗線
１３と前記保持部５に取り付けられた圧電共振子
本体１とで複合電子部品を構成している。なお、
このような構成において、前記補強部材９を、例
えば板状形の電子部品類、例えば積層コンデンサ
等で構成するといつた設計変更が可能である。 Further, a resistance wire 13 is printed on the other main surface of the reinforcing member 9, and the resistance wire 13 and the piezoelectric resonator main body 1 attached to the holding portion 5 constitute a composite electronic component. ing. In addition,
In such a configuration, a design change is possible, such as constructing the reinforcing member 9 with, for example, a plate-shaped electronic component, such as a multilayer capacitor.
〈考案の効果〉
本考案によれば、圧電共振子本体を保持する端
子板のリード脚の途中部間に横長形状の補強部材
を架設することにより、両端子板を補強部材で補
強したので、両端子板の機械的強度が大きく向上
することになる。したがつて、外装処理加工前の
未完成品段階や外装処理加工後の完成品段階にお
いて、両端子板のリード脚に外力（たわみやねじ
り）が作用することがあつても、その外力は圧電
共振子本体に及ばなくなり、圧電共振子本体にク
ラツクが起こつたり、リード脚が変形するといつ
た問題が発生せずに済む。<Effects of the invention> According to the invention, both terminal boards are reinforced with the reinforcing member by installing a horizontally elongated reinforcing member between the middle portions of the lead legs of the terminal board that holds the piezoelectric resonator main body. The mechanical strength of both terminal plates will be greatly improved. Therefore, even if an external force (deflection or twist) is applied to the lead legs of both terminal boards in the unfinished product stage before exterior processing or the finished product stage after exterior processing, the external force is This eliminates problems such as cracks occurring in the piezoelectric resonator body and deformation of the lead legs because the piezoelectric resonator body does not reach the resonator body.
また、補強部材を圧電共振子本体と異なる他の
電子部品類で構成すれば、機械的強度の大きい複
合電子部品を容易に作成できるようになる。 Further, by constructing the reinforcing member from other electronic components different from the piezoelectric resonator main body, it becomes possible to easily create a composite electronic component with high mechanical strength.
第１図ないし第３図は本考案の実施例を示し、
第１図はこの実施例の斜視図、第２図はその中央
縦断側面図、第３図は端子板の打ち抜きパターン
の展開図、第４図は本考案の他の実施例の要部分
解斜視図、第５図は従来例の斜視図である。
１……圧電共振子本体、４……端子板、６……
リード脚、７……係合部、９……補強部材、１０
……外装樹脂、Ｓ……振動空間。
1 to 3 show embodiments of the present invention,
Fig. 1 is a perspective view of this embodiment, Fig. 2 is a central vertical sectional side view thereof, Fig. 3 is a developed view of the punching pattern of the terminal board, and Fig. 4 is an exploded perspective view of essential parts of another embodiment of the present invention. FIG. 5 is a perspective view of a conventional example. 1... Piezoelectric resonator body, 4... Terminal board, 6...
Lead leg, 7... Engaging portion, 9... Reinforcement member, 10
...Exterior resin, S...Vibration space.
Claims (1)
これら両端子板間に保持される圧電共振子本体
と、 前記両端子板のリード脚の途中部間に架設さ
れる補強部材と、 前記両端子板に保持される圧電共振子本体お
よび補強部材を、該圧電共振子本体の周囲に振
動空間を形成するようモールドする外装樹脂
と、 を備えていることを特徴とする圧電部品。 (2) 前記実用新案登録請求の範囲第１項に記載の
圧電部品において、前記補強部材が電子部品類
からなる圧電部品。[Claims for Utility Model Registration] (1) A pair of terminal boards disposed facing each other,
A piezoelectric resonator main body held between these two terminal plates, a reinforcing member installed between the middle portions of the lead legs of the two terminal boards, and a piezoelectric resonator main body and reinforcing member held between the two terminal plates. A piezoelectric component, comprising: an exterior resin molded to form a vibration space around the piezoelectric resonator body. (2) The piezoelectric component according to claim 1 of the utility model registration claim, wherein the reinforcing member is an electronic component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985043017U JPH0352036Y2 (en) | 1985-03-23 | 1985-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985043017U JPH0352036Y2 (en) | 1985-03-23 | 1985-03-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61158736U JPS61158736U (en) | 1986-10-01 |
| JPH0352036Y2 true JPH0352036Y2 (en) | 1991-11-11 |
Family
ID=30554296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985043017U Expired JPH0352036Y2 (en) | 1985-03-23 | 1985-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0352036Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0619210Y2 (en) * | 1987-02-18 | 1994-05-18 | 株式会社村田製作所 | Circuit element |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514358B2 (en) * | 1974-01-17 | 1980-04-15 | ||
| JPS5631708B2 (en) * | 1974-02-02 | 1981-07-23 | ||
| JPS5850725A (en) * | 1981-09-21 | 1983-03-25 | 松下電器産業株式会社 | Composite function element |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6244580Y2 (en) * | 1978-07-10 | 1987-11-26 | ||
| JPS6122341Y2 (en) * | 1979-08-20 | 1986-07-04 |
-
1985
- 1985-03-23 JP JP1985043017U patent/JPH0352036Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514358B2 (en) * | 1974-01-17 | 1980-04-15 | ||
| JPS5631708B2 (en) * | 1974-02-02 | 1981-07-23 | ||
| JPS5850725A (en) * | 1981-09-21 | 1983-03-25 | 松下電器産業株式会社 | Composite function element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61158736U (en) | 1986-10-01 |
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