In the past two years, the hygienic situation of takeaway has been repeatedly exposed, so many office workers prefer to bring their own meals, and electric lunch boxes are convenient and fast, saving the time of queuing for microwave ovens, because they are liked by many consumers. So what is the heating principle of the electric lunch box? Let’s take a look at PChouse.
Electric lunch box, simply put, is a lunch box that can be heated and kept warm. Generally, it is a rice container made of PTC heating components and PC material. There is a cover on the top of the electric lunch box, which is tightly sealed. The vacuum insulation layer can delay the heat dissipation of the food inside, so as to achieve the purpose of heating and heat preservation. The electric heating lunch box is composed of PTC heating components at the bottom and made of a new generation of high-temperature-resistant environmentally friendly materials. It can be heated by plugging in the power supply. It is to add a PTC heating component on the basis of the thermal insulation lunch box to make it have a heating function.
The water-filled electric heating lunch box has a simpler heating principle, which is to heat the food in the lunch box by heating water and using the temperature of the hot water.