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    • 3. 发明专利
    • Gas stove
    • JP4993619B2
    • 2012-08-08
    • JP2008183180
    • 2008-07-14
    • リンナイ株式会社
    • 貴士 伊藤誠治 森口
    • F24C3/12F23K5/00F23N5/00
    • PROBLEM TO BE SOLVED: To solve a problem that it is desired to detect a valve opening failure with proper priority in the case of occurring the valve opening failure that a valve cannot be closed in a state that a main valve 3 is kept opened, since it is necessary to quickly detect the valve opening failure when the valve opening failure occurs in the main valve 3, and on the other hand, it is necessary to extinguish a fire of a gas burner with priority when a pot bottom temperature detected by a pot bottom sensor 14 exceeds a predetermined fire extinction temperature. SOLUTION: This stove burner includes a normal fire extinction mode for immediately closing a solenoid safety valve, and a main valve check mode for immediately generating a valve closing signal to the main valve when a fire extinction signal is inputted, and closing the solenoid safety valve after checking whether the fire of the gas burner is extinguished by the time of lapse of a predetermined measurement time not. The start of the main valve check mode is prohibited, and the fire of the gas burner is extinguished by closing the solenoid safety valve when the fire extinction signal is caused that the detection temperature of the pot bottom sensor reaches the predetermined fire extinction temperature. COPYRIGHT: (C)2010,JPO&INPIT
    • 8. 发明专利
    • Gas stove
    • JP5277150B2
    • 2013-08-28
    • JP2009285092
    • 2009-12-16
    • リンナイ株式会社
    • 潤哉 林貴士 伊藤
    • F24C3/12F23D14/06F23K5/00F23N5/26
    • PROBLEM TO BE SOLVED: To achieve a gas stove including a means determining wrong setting of a burner head and occurrence of device abnormalities. SOLUTION: The gas stove 10 includes a stove burner 20, a detection circuit 30 and a CPU 50. By using a first threshold potential L1 set between a power source 32 potential and a ground potential and a second threshold potential L2 set between the first threshold potential L1 and a second potential, the CPU 50 outputs the following determination results: (1) when a potential Vm at an intermediate point 40 is a potential between the power source 32 potential and the first threshold potential L1, the burner head 22 is wrongly set; (2) when the potential Vm at the intermediate point 40 is a potential between the first threshold potential L1 and the second threshold potential L2, no device abnormality occurs and the burner head 22 is correctly placed on a burner body 26; and (3) when the potential Vm at the intermediate point 40 is a potential between the second threshold potential L2 and the ground potential, an device abnormality occurs. COPYRIGHT: (C)2011,JPO&INPIT