| 摘要 |
A heater sewn on clothes is revealed. The heater includes a cover layer sewn on clothes and a heating unit. The cover layer consists of an inner layer, an outer layer, and an intermediate layer between the inner layer and the outer layer. The heating unit is arranged at the intermediate layer. Each side of the inner layer and of the outer layer forming the intermediate layer is disposed with a waterproof membrane having a high melting point. One end of each conductive wire connected to a high resistance filament includes at least two strands of electric filaments wound around and connected to the high resistance filament. The waterproof membranes are melted by high temperature and high pressure treatment so as to make the waterproof membranes of the heating unit and of the cover layer connect with each other and achieve water resistance.
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