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1. 发明授权

US06469286B1 Variable-impedance unit, microwave device using the unit, and microwave heater 有权
标题翻译：可变阻抗单元，使用该单元的微波设备和微波加热器
公开(公告)号：US06469286B1
公开(公告)日：2002-10-22
申请号：US09743404
申请日：2001-03-08
申请人： Tomotaka Nobue , Akemi Fukumoto , Akira Ahagon , Tomoko Tani , Koji Yoshino
发明人： Tomotaka Nobue , Akemi Fukumoto , Akira Ahagon , Tomoko Tani , Koji Yoshino
IPC分类号： H05B668
CPC分类号： H05B6/705 , H05B6/688 , Y02B40/143 , Y02B40/146
摘要： A compact and highly controllable impedance-varying-unit, a microwave device using the same unit, and a high-frequency-heating appliance using the same unit are provided. The impedance varying unit includes a rectangular waveguide-section as a main body made of metallic material, an open end of waveguide-section working on microwave in a microwave cavity, a terminal end of waveguide-section closed by metallic material, a rotary movable body made of non-metallic material, and a driver for the movable body. A rotating angle or a position of the movable body is controlled, so that an impedance at the open end is varied and transmission status of microwave is changed, thereby variably controlling a standing wave distribution. Controlling the standing wave distribution allows an object in the cavity to be selectively heated or uniformly heated. Further, the standing wave produced in the microwave cavity is sequentially varied, so that the object can be selectively heated or uniformly heated. The present invention solves the problem of spark production, and provides a compact as well as highly controllable impedance varying unit, a microwave device using the same unit and a high-frequency-heating appliance using the same unit.
摘要翻译：提供了一种紧凑且高度可控的阻抗变化单元，使用相同单元的微波装置和使用该单元的高频加热装置。阻抗变化单元包括作为主体的金属材料构成的矩形波导管部分，微波腔内微波加工的波导管的开口端，金属材料封闭的波导管的端部，旋转移动体由非金属材料制成，以及用于可移动体的驱动器。控制可动体的旋转角度或位置，使得开口端的阻抗发生变化，微波的传播状态发生变化，从而可变地控制驻波分布。控制驻波分布允许空腔中的物体被选择性地加热或均匀加热。此外，在微波空腔中产生的驻波顺序地变化，从而可以选择性地加热或均匀地加热物体。本发明解决了火花生成的问题，提供了一种紧凑型以及高度可控的阻抗变化单元，使用相同单元的微波装置和使用该单元的高频加热装置。

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