JPS5824502Y2 - Atsudenjikikyyoushinshi - Google Patents
AtsudenjikikyyoushinshiInfo
- Publication number
- JPS5824502Y2 JPS5824502Y2 JP1975176028U JP17602875U JPS5824502Y2 JP S5824502 Y2 JPS5824502 Y2 JP S5824502Y2 JP 1975176028 U JP1975176028 U JP 1975176028U JP 17602875 U JP17602875 U JP 17602875U JP S5824502 Y2 JPS5824502 Y2 JP S5824502Y2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- piezoelectric ceramic
- resonator
- thermoplastic resin
- resin sheet
- 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
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
【考案の詳細な説明】
本考案は圧電磁器共振子、特に圧電磁器共振子に断熱効
果を持たせて温度変化に対する周波数特性の安定化を計
ることに関するものである。[Detailed Description of the Invention] The present invention relates to a piezoelectric ceramic resonator, particularly to a piezoelectric ceramic resonator that has a heat insulating effect to stabilize frequency characteristics against temperature changes.
従来の圧電磁器共振子は第１図に示すような構造であっ
た。A conventional piezoelectric ceramic resonator had a structure as shown in FIG.
すなわち、プリント基板、磁器板等の絶縁基板１上に半
田２，２によりリード線３゜３を固着した矩形状の電極
４，４を配置し、そしてその電極４，４間に短冊状の圧
電共振板５を導電性接着剤６，６により電気的かつ振動
可能に取付け、また前記圧電共振板５の主振動部を抑圧
しないように前記絶縁基板１全体を熱可塑性樹脂シート
７で覆うとともに全体を熱硬化性の樹脂８でモールドし
た構造であった。That is, rectangular electrodes 4, 4 with lead wires 3.3 fixed to them by solders 2, 2 are placed on an insulating substrate 1 such as a printed circuit board or a ceramic plate, and a piezoelectric strip in the form of a strip is placed between the electrodes 4, 4. The resonant plate 5 is attached electrically and vibrably using conductive adhesives 6, 6, and the entire insulating substrate 1 is covered with a thermoplastic resin sheet 7 so as not to suppress the main vibration part of the piezoelectric resonator plate 5. It had a structure in which it was molded with thermosetting resin 8.
なお、第２図〜第５図は従来の圧電共振子の分解斜視図
である。Note that FIGS. 2 to 5 are exploded perspective views of conventional piezoelectric resonators.
従って、圧電共振板５は何らの抑圧を受けないため、常
温の使用状態においては周波数特性が非常に優れていた
が、周囲温度が変化した場合、周波数特性がその周囲温
度の変化に伴って変化してしまうという問題があり、使
用条件の狭いものであった。Therefore, since the piezoelectric resonator plate 5 is not subjected to any suppression, its frequency characteristics are very excellent when used at room temperature, but when the ambient temperature changes, the frequency characteristics change with the change in the ambient temperature. However, the conditions for use were narrow.
本考案は上述のような従来の問題点を解消するものであ
り、以下本考案の一実施例を示す第６図および第７図を
参照しながら説明する。The present invention solves the above-mentioned conventional problems, and will be described below with reference to FIGS. 6 and 7 showing an embodiment of the present invention.
なお、第１図〜第５図に示す部分と同一箇所には同一番
号を記して説明は省略する。Note that the same parts as those shown in FIGS. 1 to 5 are denoted by the same numbers, and explanations thereof will be omitted.
第６図において、９はシリコンゴム等の断熱層で、この
断熱層９は第６図に示すように熱可塑性樹脂シート７と
樹脂８との間に設けられ、圧電共振板５を熱的影響から
防いでいる。In FIG. 6, reference numeral 9 denotes a heat insulating layer made of silicone rubber, etc. This heat insulating layer 9 is provided between the thermoplastic resin sheet 7 and the resin 8 as shown in FIG. It prevents from
すなわち、本考案の圧電磁器共振子は、圧電共振板５の
主振動部を抑圧しないように絶縁、基板１に取付け、か
つ熱可塑性樹脂シート７でこの絶縁基板１全体を覆って
圧電共振板５との間に空間を形成し、さらに熱可塑性樹
脂シート１とこの圧電磁器共振子の外装体である樹脂８
との間に断熱層９を設けたものであるから、圧電共振板
５が周囲温度の影響を受けることが少なくなり、それに
よって圧電磁器共振子の温度変化に対する周波数特性の
安定化を計ることができるのである。That is, the piezoelectric ceramic resonator of the present invention is insulated and attached to the substrate 1 so as not to suppress the main vibrating part of the piezoelectric resonator plate 5, and the piezoelectric resonator plate 5 is entirely covered with the thermoplastic resin sheet 7. A space is formed between the thermoplastic resin sheet 1 and the resin 8 which is the exterior body of the piezoelectric ceramic resonator.
Since the heat insulating layer 9 is provided between the piezoelectric resonator plate 5 and the piezoelectric resonator plate 5, the piezoelectric resonator plate 5 is less affected by the ambient temperature, thereby stabilizing the frequency characteristics of the piezoelectric ceramic resonator against temperature changes. It can be done.
また、断熱層９を熱可塑性樹脂シートγの上に設けてい
ることにより、樹脂８でモールドした時に、その時の熱
によって熱可塑性樹脂シート７が軟化して圧電共振板５
と接触し、圧電共振板５の振動を抑圧するようなことが
なくなる。Further, by providing the heat insulating layer 9 on the thermoplastic resin sheet γ, when molded with the resin 8, the thermoplastic resin sheet 7 is softened by the heat generated at that time, and the piezoelectric resonator plate 5
There is no possibility that the vibration of the piezoelectric resonator plate 5 will be suppressed due to contact with the piezoelectric resonator plate 5.
さらには、熱可塑性樹脂シート７で絶縁基板１全体を覆
って圧電共振板５との間に空間を形成し、圧電共振板５
の振動を抑圧していないため、圧電磁器共振子の周波数
特性が劣化することはない。Furthermore, the entire insulating substrate 1 is covered with a thermoplastic resin sheet 7 to form a space between the piezoelectric resonator plate 5 and the piezoelectric resonator plate 5.
Since the vibration of the piezoelectric ceramic resonator is not suppressed, the frequency characteristics of the piezoelectric ceramic resonator do not deteriorate.
第７図ａは従来の圧電磁器共振子の温度−周波数特性図
、第１図すは本考案による圧電磁器共振子の温度−周波
数特性図である。FIG. 7a is a temperature-frequency characteristic diagram of a conventional piezoelectric ceramic resonator, and FIG. 1 is a temperature-frequency characteristic diagram of a piezoelectric ceramic resonator according to the present invention.
これらの特性図からも明らかなように、本考案の圧電磁
器共振子の方が従来の圧電磁器共振子に比べ、温度変化
に対する周波数特性が安定していることがわかる。As is clear from these characteristic diagrams, it can be seen that the piezoelectric ceramic resonator of the present invention has more stable frequency characteristics with respect to temperature changes than the conventional piezoelectric ceramic resonator.
以上のように本考案は、同波数特性を劣化させることな
く、温度変化に対する周波数特性が非常に安定している
圧電磁器共振子を提供することができる実用的価値の犬
なるものである。As described above, the present invention is of practical value because it can provide a piezoelectric ceramic resonator whose frequency characteristics are extremely stable against temperature changes without deteriorating its wavenumber characteristics.
第１図は従来の圧電磁器共振子の内部構造を示す一部欠
截断面図、第２図〜第５図は同圧電磁器共振子の分解斜
視図、第６図は本考案の一実施例による圧電磁器共振子
の内部構造を示す一部欠截断面図、第１図ａは従来の圧
電磁器共振子の温度−周波数特性図、第７図すは本考案
による圧電磁器共振子の温度−周波数特性図である。
１・・・絶縁基板、３・・・リード線、４・・・電極、
５・・・圧電共振板、１・・・熱可塑性樹脂シート、８
・・・外装樹脂、９・・斬熱層。Figure 1 is a partially cutaway sectional view showing the internal structure of a conventional piezoelectric ceramic resonator, Figures 2 to 5 are exploded perspective views of the same piezoelectric ceramic resonator, and Figure 6 is an embodiment of the present invention. FIG. 1A is a temperature-frequency characteristic diagram of a conventional piezoelectric ceramic resonator, and FIG. 7 is a temperature-frequency characteristic diagram of a piezoelectric ceramic resonator according to the present invention. It is a frequency characteristic diagram. 1... Insulated substrate, 3... Lead wire, 4... Electrode,
5... Piezoelectric resonator plate, 1... Thermoplastic resin sheet, 8
...Exterior resin, 9...Zanther layer.
Claims (1)
共振板を電気的かつ振動可能に取付け、前記絶縁基板全
体を熱可塑性樹脂シートで覆って前記圧電共振板との間
に空間を形成し、かつ前記熱可塑性樹脂シートの周囲を
断熱層で覆うとともに全体を樹脂で外装してなる圧電磁
器共振子。A piezoelectric resonator plate is electrically and vibrably attached between electrodes arranged integrally with lead wires on an insulating substrate, and a space is formed between the piezoelectric resonator plate and the piezoelectric resonator plate by covering the entire insulating substrate with a thermoplastic resin sheet. A piezoelectric ceramic resonator comprising: the thermoplastic resin sheet being surrounded by a heat insulating layer, and the whole being covered with resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975176028U JPS5824502Y2 (en) | 1975-12-24 | 1975-12-24 | Atsudenjikikyyoushinshi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975176028U JPS5824502Y2 (en) | 1975-12-24 | 1975-12-24 | Atsudenjikikyyoushinshi |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5288582U JPS5288582U (en) | 1977-07-01 |
| JPS5824502Y2 true JPS5824502Y2 (en) | 1983-05-26 |
Family
ID=28654361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1975176028U Expired JPS5824502Y2 (en) | 1975-12-24 | 1975-12-24 | Atsudenjikikyyoushinshi |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824502Y2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS482662U (en) * | 1971-05-31 | 1973-01-12 | ||
| JPS482661U (en) * | 1971-05-31 | 1973-01-12 | ||
| JPS482663U (en) * | 1971-05-31 | 1973-01-12 | ||
| JPS482664U (en) * | 1971-05-31 | 1973-01-12 |
-
1975
- 1975-12-24 JP JP1975176028U patent/JPS5824502Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5288582U (en) | 1977-07-01 |
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