发明公开
- 专利标题： Microwave oven with invertor control power source
- 专利标题（中）： 微波炉具有配备有可控倒相器的电源。
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申请号： EP91104921.1申请日： 1991-03-27
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公开(公告)号： EP0449275A2公开(公告)日： 1991-10-02
- 发明人: Minakawa, Hiroshi , Kitaguchi, Yoshikazu , Fukuda, Eiji
- 申请人： SHARP KABUSHIKI KAISHA
- 申请人地址： 22-22 Nagaike-cho Abeno-ku Osaka JP
- 专利权人： SHARP KABUSHIKI KAISHA
- 当前专利权人： SHARP KABUSHIKI KAISHA
- 当前专利权人地址： 22-22 Nagaike-cho Abeno-ku Osaka JP
- 代理机构： TER MEER - MÜLLER - STEINMEISTER & PARTNER
- 优先权： JP85445/90 19900330
- 主分类号： H05B6/66
- IPC分类号： H05B6/66 ; G05D23/26 ; H03B9/10
摘要：
A microwave oven with an invertor control power source produces a microwave by the use of the magnetron (MAG) in relation to the high frequency power (Pi) generated by the invertor control power source (1). The heat sensitive ferreit beads (FB) provided on the lead wire (11) for transmitting the high frequency power (Pi) to the magnetron (MAG) changes the inductance of the wire (11) from the high level (3µH) to the low level (0µ) at around a threshold temperature (T₀) lower than the working equilibrium temperature (T eq ) of the magnetron (MAG). The cathode filament current (I₂f and I₂ℓ) remains within the allowable range, and the moding of the magnetron is prevented. The magnetron (MAG) can operate in a long life time.
公开/授权文献
- EP0449275B1 Microwave oven with invertor control power source 公开/授权日：1995-06-14
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