| 摘要 |
<p>A heating device (1) includes an electrically conductive heating wire unit (3) having two opposite end portions (10, 11) and a middle portion (12) extending between the end portions (10, 11), a phase-change material (6, 6') enclosing the middle portion (12) of the heating wire unit (3) and that is capable of storing heat through phase changing, and an enclosure (4) enclosing the phase-change material (6, 6') for preventing leakage of the phase-change material (6, 6').
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