| 摘要 |
PURPOSE: A water circulation mattress for a bed is provided to make the most of both bed and ondol, the Korean under-floor heating system, by providing the same warm bedding as if a user were sleeping directly on the ondol without any heating device. CONSTITUTION: The mattress comprises: an upper mattress(10) having a circulation tube(11) uniformly arranged on the whole and an upper temperature sensor(17) installed for measuring a water temperature in the circulation tube(11); a lower mattress(20) containing water heated and cooled by a temperature of an ondol floor and having at least one pack(21) communicating with one another and a lower temperature sensor(27) for measuring a temperature of the water in the pack(21); a connecting hose(30) connecting the circulation tube(11) of the upper mattress(10) and the pack(21) of the lower mattress(27); and a circulation pump(40) installed on the connecting hose(30) and circulating the water in the circulation tube(11) of the upper mattress(10) and the water in the pack(21) of the lower mattress(20).
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