The heating of the thermos lid does not necessarily indicate poor insulation effect, but may be related to factors such as the sealing of the lid and the material used.
1. The reason for the heating of the thermos cup lid
There may be several reasons for the heating of the thermos cup lid, включая:
(1) The sealing of the cup lid is poor. If the sealing of the thermos lid is not good, air and water vapor can enter the inside of the cup, resulting in poor insulation effect and also causing the lid to heat up.
(2) Cup lid material. The lid of a thermos cup is usually made of materials such as plastic, silicone, нержавеющая сталь, и т. д.. Stainless steel cup lids usually do not generate heat; But plastic or silicone cup lids may generate some heat.
(3) External temperature. If the thermos cup is placed in a high-temperature environment. Such as in a car with direct sunlight, the lid of the thermos cup will also heat up.
2.Does the heating of the thermos lid affect the insulation effect?
The heating of the thermos lid does not necessarily indicate poor insulation effect. According to the principle of reaction thermodynamics, objects with high temperatures will dissipate heat to objects with low temperatures. So it is normal for there to be a certain amount of heat on the surface of the thermos cup lid. But when the sealing of the cup lid is poor and the lid heats up significantly, it may be a sign of poor insulation effect.
Поэтому, if the heating phenomenon of the thermos cup lid is quite obvious, factors such as checking whether the sealing of the cup lid is normal and whether a suitable thermos cup for one’s needs has been selected can be considered; If it is only a slight heat, there is no need to worry about affecting the insulation effect.
