The product design team designed the cup body into three parts: rapid cooling of the upper part, isolation and adjustment of the middle part, and closed insulation of the lower part. The insulation layer between the cabin body adopts nano ceramic sheet, which has low thermal conductivity, superior heat preservation and heat insulation performance, keeps the upper and lower temperature isolation, and avoids heat energy exchange. Open the insulated hatch, turn the water cup upside down, the hot water purrs to the cold water cabin, and cool down quickly in 5 minutes, allowing users to experience the carefree experience of drinking up their heads.