First cooling device

Abstract

This product is a neck cooling device consisting of a flat, flexible outer frame that is curved into a partially open circle when viewed from above, and a cooling sheet that is inserted into belts provided near both the left and right ends of the outer frame and assembled. A pair of left and right cooling blocks are formed on the inner surface of the cooling sheet that comes into contact with the user's neck. Each cooling block contains a phase change material (a material that can repeatedly release and absorb heat depending on the temperature environment), so when it comes into contact with the user's neck, it absorbs body heat and melts, thereby cooling the user.

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