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    • 2. 发明专利
    • Accumulator
    • JP4657226B2
    • 2011-03-23
    • JP2007023206
    • 2007-02-01
    • トヨタ自動車株式会社株式会社ティラド
    • 賢二 坪根政仁 塚原浩司 成田正隆 福澤聖一 端
    • F28D20/00F24F5/00
    • F28D20/0039F28D2020/0078F28D2020/0086F28F2270/00Y02E60/142
    • An objective of the present invention is to store heat into a thermal storing material using a plurality of thermal transport mediums, in a thermal storage device utilizing natural convection of a thermal storage material resulting from temperature difference of the thermal storage material. The thermal storage device of the invention has a plurality of thermal transport mediums 6a and 6b having different temperatures, a thermal storage material 2 which stores heat of the thermal transport mediums 6a and 6b or whose heat is drawn by the thermal transport mediums 6a and 6b, a thermal storage portion 1 accommodating the thermal storage material 2, and a first and a second thermal storage tanks 3 and 4 formed by dividing an inner space of the thermal storage portion 1, and a thermal exchange between the thermal transport medium 6a or 6b and the thermal storage material 2 takes place in the individual thermal storage tanks. In order to achieve the above-mentioned objective, the thermal storage device of the present invention is characterized by comprising: inner tanks 5a and 5b, which is formed in at least one of the first and the second thermal storage tanks 3 and 4, and in which a side thereof opposite to a boundary between the thermal storage tanks 3 and 4 is open; and a thermal exchange portion 8a and 8b formed inside of the inner tanks 5a and 5b, at which thermal exchange takes place between the thermal transport medium 6a or 6b and the thermal storage material 2.