JPS6231205U - - Google Patents
Info
- Publication number
- JPS6231205U JPS6231205U JP12202185U JP12202185U JPS6231205U JP S6231205 U JPS6231205 U JP S6231205U JP 12202185 U JP12202185 U JP 12202185U JP 12202185 U JP12202185 U JP 12202185U JP S6231205 U JPS6231205 U JP S6231205U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric transducer
- roller
- turntable
- heating chamber
- microwave oven
- 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
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 1
Landscapes
- Constitution Of High-Frequency Heating (AREA)
- Electric Ovens (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Description
第１図は本考案の圧電素子の要部断面図、第２
図は同じ重量に対する圧電素子の出力電圧と湿度
との関係線図で実線はコーテイング有り、一点鎖
線はコーテイング無しを示す。第３図は電子レン
ジの要部側断面図、第４図は第３図のターンテー
ブルを取去つた状態の加熱室底部上面図、第５図
は従来のターンテーブル部の拡大詳細断面図であ
り、第６図は圧電素子部の要部断面図、第７図は
第６図に示す圧電素子の出力電圧波形図、第８図
は圧電素子出力電圧のＲ―Ｃフイルター回路図、
第９図は出力ピーク電圧平均値と重量との関係図
、第１０図はマグネトロン制御回路図である。
符号、１：加熱室、２：ターンテーブル、３：
支持ローラ、３ｂ：ローラ、７：ローラの回転軌
跡、８：圧電素子、８ｂ：圧電セラミツク、８ｄ
：コーテイング。
Figure 1 is a sectional view of the main parts of the piezoelectric element of the present invention, Figure 2
The figure is a graph showing the relationship between the output voltage of the piezoelectric element and the humidity for the same weight. The solid line shows the case with coating, and the dashed line shows the case without coating. Figure 3 is a side sectional view of the main parts of the microwave oven, Figure 4 is a top view of the bottom of the heating chamber with the turntable in Figure 3 removed, and Figure 5 is an enlarged detailed sectional view of the conventional turntable. 6 is a sectional view of the main part of the piezoelectric element part, FIG. 7 is an output voltage waveform diagram of the piezoelectric element shown in FIG. 6, and FIG. 8 is an RC filter circuit diagram of the piezoelectric element output voltage.
FIG. 9 is a relationship diagram between the output peak voltage average value and weight, and FIG. 10 is a magnetron control circuit diagram. Code, 1: heating chamber, 2: turntable, 3:
Support roller, 3b: Roller, 7: Roller rotation locus, 8: Piezoelectric element, 8b: Piezoelectric ceramic, 8d
: Coating.
Claims (1)
る支持ローラを加熱室内に配設し、該ローラの回
転軌跡に対応させて圧電変換素子を配設し、前記
支持ローラが回転した際に圧電変換素子に発生す
る電圧を検出して、前記ターンテーブル上に載置
された被加熱物の重量を検出するようにした電子
レンジの重量検出装置において、 圧電変換素子に、樹脂コーテイングを施したこ
とを特徴とする電子レンジの重量検出装置。[Claims for Utility Model Registration] A support roller that supports a turntable and rotates the bottom wall of the heating chamber is disposed in the heating chamber, a piezoelectric transducer is disposed corresponding to the rotation locus of the roller, and In a weight detection device for a microwave oven that detects the voltage generated in the piezoelectric transducer when the roller rotates to detect the weight of the heated object placed on the turntable, the piezoelectric transducer , a weight detection device for a microwave oven characterized by being coated with a resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12202185U JPH0330721Y2 (en) | 1985-08-07 | 1985-08-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12202185U JPH0330721Y2 (en) | 1985-08-07 | 1985-08-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6231205U true JPS6231205U (en) | 1987-02-25 |
| JPH0330721Y2 JPH0330721Y2 (en) | 1991-06-28 |
Family
ID=31011828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12202185U Expired JPH0330721Y2 (en) | 1985-08-07 | 1985-08-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0330721Y2 (en) |
-
1985
- 1985-08-07 JP JP12202185U patent/JPH0330721Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0330721Y2 (en) | 1991-06-28 |