JPS6197826U - - Google Patents
Info
- Publication number
- JPS6197826U JPS6197826U JP18375484U JP18375484U JPS6197826U JP S6197826 U JPS6197826 U JP S6197826U JP 18375484 U JP18375484 U JP 18375484U JP 18375484 U JP18375484 U JP 18375484U JP S6197826 U JPS6197826 U JP S6197826U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- electrode
- capacitance
- ceramic
- linear expansion
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は第１図の外側ロータ電極部分を示す拡大部分
断面図、第３図は第１図のロータ部分を示す分解
斜視図、第４図は第３図の組立状態を示す斜視図
、第５図はｄＣ（空隙変化による容量変化）と線
膨張係数基の関係を示す線図、第６図は温度変化
に対するｄＣ及びセラミツク誘電体の容量変化を
示す線図、第７図は従来例を示す断面図、第８図
は第７図中に使用されているロータを示す斜視図
、第９図は第７図のステータ電極の位置を示す説
明図である。
１…ロータ、１ａ，１ｂ…ロータ電極、６…セ
ラミツク誘電体、７，８…ステータ電極、９…セ
ラミツクホルダー、１３，１６…環状スペーサ、
１４，１５…ギヤツプ。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figures are an enlarged partial cross-sectional view showing the outer rotor electrode part of Fig. 1, Fig. 3 is an exploded perspective view showing the rotor part of Fig. 1, Fig. 4 is a perspective view showing the assembled state of Fig. The figure is a diagram showing the relationship between dC (capacitance change due to air gap change) and linear expansion coefficient base, Figure 6 is a diagram showing dC and capacitance change of ceramic dielectric with respect to temperature change, and Figure 7 is a conventional example. 8 is a perspective view showing the rotor used in FIG. 7, and FIG. 9 is an explanatory view showing the position of the stator electrodes in FIG. 7. DESCRIPTION OF SYMBOLS 1... Rotor, 1a, 1b... Rotor electrode, 6... Ceramic dielectric, 7, 8... Stator electrode, 9... Ceramic holder, 13, 16... Annular spacer,
14,15... Gap.
Claims (1)
ると共に、前記セラミツク誘電体を介して前記ス
テータ電極に対向するロータ電極を設けたロータ
を配置し、前記ステータ電極とロータ電極との対
向面積を該ロータを回転することにより変化させ
て容量を可変させるセラミツク可変コンデンサに
おいて、前記ロータの外周部及び中央部に該ロー
タの線膨張係数より小さい線膨張係数をもつ物質
よりなる環状スペーサを設けたことを特徴とする
セラミツク可変コンデンサのロータ構造。 A rotor is provided with a stator electrode on one side of a ceramic dielectric and a rotor electrode facing the stator electrode via the ceramic dielectric, and the rotor is rotated so that the opposing area between the stator electrode and the rotor electrode is A ceramic variable capacitor whose capacitance is varied by changing the capacitance by changing the capacitance, characterized in that an annular spacer made of a material having a coefficient of linear expansion smaller than the coefficient of linear expansion of the rotor is provided at the outer periphery and center of the rotor. Rotor structure of ceramic variable capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18375484U JPS6197826U (en) | 1984-12-04 | 1984-12-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18375484U JPS6197826U (en) | 1984-12-04 | 1984-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6197826U true JPS6197826U (en) | 1986-06-23 |
Family
ID=30741247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18375484U Pending JPS6197826U (en) | 1984-12-04 | 1984-12-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6197826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01290214A (en) * | 1988-05-18 | 1989-11-22 | Chichibu Cement Co Ltd | Trimmer capacitor |
-
1984
- 1984-12-04 JP JP18375484U patent/JPS6197826U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01290214A (en) * | 1988-05-18 | 1989-11-22 | Chichibu Cement Co Ltd | Trimmer capacitor |
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