JPS61114208U - - Google Patents
Info
- Publication number
- JPS61114208U JPS61114208U JP1984197514U JP19751484U JPS61114208U JP S61114208 U JPS61114208 U JP S61114208U JP 1984197514 U JP1984197514 U JP 1984197514U JP 19751484 U JP19751484 U JP 19751484U JP S61114208 U JPS61114208 U JP S61114208U
- Authority
- JP
- Japan
- Prior art keywords
- output voltage
- heating chamber
- microwave oven
- support roller
- piezoelectric transducer
- 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 5
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Constitution Of High-Frequency Heating (AREA)
- Electric Ovens (AREA)
Description
第１図は本考案の要旨である出力電圧調整手段
の一実施例を示す電気回路図で、第２図は第１図
の出力電圧調整手段による出力ピーク電圧平均値
と重量との関係の変化を示す出力電圧―重量関係
図であり、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図は従来の圧電素子出力電圧
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図は従来の
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、１８：可変抵抗器（出力電圧
調整手段）。
FIG. 1 is an electric circuit diagram showing an embodiment of the output voltage adjusting means which is the gist of the present invention, and FIG. 2 is a change in the relationship between the average output voltage voltage and the weight due to the output voltage adjusting means shown in FIG. 3 is an output voltage-weight relationship diagram showing the main parts of the microwave oven.
4 is a top view of the bottom of the heating chamber with the turntable in FIG. 3 removed, FIG. 5 is an enlarged detailed sectional view of the turntable section, and FIG. 6 is a sectional view of the main parts of the piezoelectric element section. Fig. 7 is an output voltage waveform diagram of the piezoelectric element shown in Fig. 6, Fig. 8 is a conventional piezoelectric element output voltage R-C filter circuit diagram, and Fig. 9 is a relationship between the output peak voltage average value and weight. , FIG. 10 is a conventional magnetron control circuit diagram. Code, 1: heating chamber, 2: turntable, 3:
Support roller, 3b: roller, 7: rotation locus of roller, 8: piezoelectric element, 18: variable resistor (output voltage adjustment means).
Claims (1)
する支持ローラを加熱室内に配設し、該支持ロー
ラの回転によつて応力を生じる加熱室底壁のロー
ラ回転軌跡部に圧電変換素子を配設して、前記支
持ローラが回転した際に前記圧電変換素子に発生
する電圧を検出し、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、上記圧電変換素
子の出力電圧を調整する出力電圧調整手段を設け
たことを特徴とする電子レンジの重量検出装置。 ２ 出力電圧調整手段を電子レンジ本体の外部か
ら調整可能にしたことを特徴とする実用新案登録
請求の範囲第１項記際の電子レンジの重量検出装
置。[Claims for Utility Model Registration] 1. A support roller that supports a turntable and rotates with the bottom wall of the heating chamber is disposed in the heating chamber, and rotation of the roller on the bottom wall of the heating chamber that causes stress due to rotation of the support roller. A piezoelectric transducer is disposed in the trajectory portion, and a voltage generated in the piezoelectric transducer when the support roller rotates is detected, and the weight of the object to be heated placed on the turntable is detected. 1. A weight detecting device for a microwave oven according to the present invention, further comprising an output voltage adjusting means for adjusting an output voltage of the piezoelectric transducer. 2. The weight detection device for a microwave oven as set forth in claim 1 of the utility model registration claim, characterized in that the output voltage adjustment means can be adjusted from outside the microwave oven main body.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19751484U JPH0248727Y2 (en) | 1984-12-28 | 1984-12-28 | |
| KR1019850008278A KR900002322B1 (en) | 1984-11-27 | 1985-11-06 | Weight measuring device |
| GB08528725A GB2167566A (en) | 1984-11-27 | 1985-11-21 | Weight measuring device for microwave oven |
| US06/801,340 US4683967A (en) | 1984-11-27 | 1985-11-25 | Weight measuring device |
| CN85108676.4A CN1005791B (en) | 1984-11-27 | 1985-11-26 | Check-weighting device |
| DE19853541791 DE3541791A1 (en) | 1984-11-27 | 1985-11-26 | PIEZOELECTRIC WEIGHT MEASURING DEVICE |
| GB8628725A GB2184550B (en) | 1984-11-27 | 1986-12-02 | Weighing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19751484U JPH0248727Y2 (en) | 1984-12-28 | 1984-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61114208U true JPS61114208U (en) | 1986-07-19 |
| JPH0248727Y2 JPH0248727Y2 (en) | 1990-12-20 |
Family
ID=30755849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19751484U Expired JPH0248727Y2 (en) | 1984-11-27 | 1984-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0248727Y2 (en) |
-
1984
- 1984-12-28 JP JP19751484U patent/JPH0248727Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0248727Y2 (en) | 1990-12-20 |