JPH0418623U - - Google Patents
Info
- Publication number
- JPH0418623U JPH0418623U JP5702790U JP5702790U JPH0418623U JP H0418623 U JPH0418623 U JP H0418623U JP 5702790 U JP5702790 U JP 5702790U JP 5702790 U JP5702790 U JP 5702790U JP H0418623 U JPH0418623 U JP H0418623U
- Authority
- JP
- Japan
- Prior art keywords
- work coil
- platinum crucible
- high frequency
- temperature sensor
- magnetic field
- 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
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 6
- 238000005266 casting Methods 0.000 claims 3
- 229910052697 platinum Inorganic materials 0.000 claims 3
- 239000002241 glass-ceramic Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Description
第１図は、本考案の第１実施例を示す回路構成
図、第２図は同ワークコイルの断面図、第３図は
、本考案の第２実施例を示すワークコイルの断面
図、第４図は、本考案の第３実施例を示すワーク
コイルの断面図である。
１……銅パイプ、２……温度センサ、３……冷
媒、４……リード線、５……整流回路、６……発
振回路、７……ドライブ回路、８……保護回路、
９……ワークコイル、１０……出力トランス、１
１……高周波電源回路、１２……タンクコンデン
サ。
FIG. 1 is a circuit configuration diagram showing a first embodiment of the present invention, FIG. 2 is a cross-sectional view of the work coil, and FIG. 3 is a cross-sectional view of the work coil showing a second embodiment of the present invention. FIG. 4 is a sectional view of a work coil showing a third embodiment of the present invention. 1... Copper pipe, 2... Temperature sensor, 3... Refrigerant, 4... Lead wire, 5... Rectifier circuit, 6... Oscillation circuit, 7... Drive circuit, 8... Protection circuit,
9... Work coil, 10... Output transformer, 1
1... High frequency power supply circuit, 12... Tank capacitor.
Claims (1)
ルツボと、前記白金ルツボを高周波により磁界を
発生させつつ過熱して白金ルツボ内の鋳造材料を
溶融するワークコイルと、前記ワークコイル上、
またはワークコイルの近傍に、ワークコイルの発
生する磁界に影響されぬように取り付けられたワ
ークコイルの温度上昇を検知する温度センサと、
前記温度センサの検知信号により前記ワークコイ
ルへの電源の供給を停止する制御回路とから成る
ことを特徴とするガラスセラミツクス等の高周波
鋳造機における過熱防止装置。 a platinum crucible into which a casting material such as glass ceramics is placed; a work coil that heats the platinum crucible while generating a magnetic field using high frequency waves to melt the casting material in the platinum crucible;
or a temperature sensor that detects the temperature rise of the work coil, which is installed near the work coil so as not to be affected by the magnetic field generated by the work coil;
An overheat prevention device for a high frequency casting machine for glass ceramics, etc., comprising a control circuit that stops supplying power to the work coil in response to a detection signal from the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5702790U JPH0418623U (en) | 1990-05-30 | 1990-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5702790U JPH0418623U (en) | 1990-05-30 | 1990-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0418623U true JPH0418623U (en) | 1992-02-17 |
Family
ID=31581371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5702790U Pending JPH0418623U (en) | 1990-05-30 | 1990-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0418623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63315084A (en) * | 1987-06-17 | 1988-12-22 | 株式会社 三共 | Pinball game machine |
-
1990
- 1990-05-30 JP JP5702790U patent/JPH0418623U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63315084A (en) * | 1987-06-17 | 1988-12-22 | 株式会社 三共 | Pinball game machine |
| JP2519456B2 (en) * | 1987-06-17 | 1996-07-31 | 株式会社 三共 | Ball game machine |
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