| 摘要 |
PURPOSE: A maximum inner pressure of an electric rice cooker is controlled by adjusting weight of a pressure weight using pushing force of a permanent magnet and an electromagnetic coil of same polarity. CONSTITUTION: A device for controlling pressure of an electric pressure rice cooker comprises a pressure adjusting pin(11), a permanent magnet(12), a pressure adjusting weight(10), a water receiving port(21), a nut(22) to seal the water receiving port, an electromagnetic coil(20), a first male screw portion(32) connected to the nut, a second male screw portion(33) in opposite side of the first male screw portion, an air passage(34), a flange(35) formed in lower end of the air passage, a second supporting portion(31) formed of a gap between the first male screw portion, and a first supporting portion(41).
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