Water flow switch for water heater |
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| 申请号 | JP7032084 | 申请日 | 1984-04-09 | 公开(公告)号 | JPS60213758A | 公开(公告)日 | 1985-10-26 |
| 申请人 | Matsushita Electric Ind Co Ltd; | 发明人 | KONISHI MITSUNARI; | ||||
| 摘要 | PURPOSE:To stop combustion in case water having a temperature higher than a given temperature flows by utilizing the characteristic of a magnet having Curie effect. CONSTITUTION:The water heater is provided with a float 3, moving by the flow of water, the magnet 2, whose magnetic force is eliminated by the Curie effect when the temperature thereof becomes a given temperature, and a lead switch 5, opened and closed by the magnetic force. When water flows, the float 3 contracts a spring 4 and envelopes the lead switch 5. When the magnet 2 has the magnetic force or the temperature of flowing water is lower than the given temperature in this case, the lead switch 5 is closed and the signal thereof is delivered to the combustion device 7 of the water heater to begin combustion. When the temperature of the flowing water is higher than the given temperature, the magnet 2 loses the magnetic force and the lead switch 5 is opened, therefore, combustion is stopped. When the flow of water is stopped under the burning condition of the combustion device, the float 3 returns to the initial position thereof and is separated from the lead switch 5, therefore, the lead switch 5 is opened and the combustion is stopped. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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