The invention discloses a
temperature sensing device for preventing no-loading of a
microwave oven. The
temperature sensing device comprises two components, the first component is a
ceramic chip, andthe second component is a temperature sensor. The temperature sensor and the
ceramic chip are connected to each other, and the front surface of the
ceramic chip is covered with a black
glaze layer. The black
glaze layer attached to the ceramic chip is formulated by adding 5%-40% of Fe-Cr-Co-based
spinel black toner to a base
glaze, and the base glaze comprises, by
mass, 40%-65% of SiO2, 8%-15% ofAl2O3, 5%-10% of CaO, 0.5%-2% of K2O, 2%-5% of ZnO, 3%-7% of B2O3, and 5%-10% of ZrO2; and the black toner comprises, by
mass, 40%-70% of Fe2O3, 10%-30% of Cr2O3, and 10%-30% of Co2O3. According to the
temperature sensing device for preventing no-loading of the
microwave oven, whether the
microwave oven is in an on-loading state or not can be well determined through the temperature change of the ceramic chip with the black glaze layer, and then the
microwave oven is adjusted and controlled through a computer board, so that the
microwave oven is effectively prevented from no-loading.