The electric heating element with automatic heat preservation comprises an electric tubular heater, a resistor, a light emitting diode and a temperature control device, and is characterized in that a resistor R1, a red light emitting diode L1, a temperature control device K and a W1 and a W2 are respectively connected at both ends of the heating element. The resistor R2 and the green LED L2 are connected to the W1 end of the electric heating tube and the other is connected to the temperature control device K and the resistor R1. The utility model can automatically control the temperature, has the advantages of simple structure, convenient use, safe operation, energy saving and practicality, and is an ideal electric tubular heater.
Mainly used in rubber and plastic machinery, baking machinery, stainless steel heating element, silicon film heater, electrical equipment, vulcanized mechanical stainless steel heater, coffee machine heating tube, mold temperature machine stainless steel tubular heater, heat sink stainless steel heater, kitchen electric Steaming cabinet heater, heat sink heating element, stainless steel heating element, air conditioning equipment, mold heating equipment, vulcanizing machine heating tube spraying machinery equipment, food machinery stainless steel heating element, carbon fiber heater, convection oven heater, high temperature Stainless steel heater, infrared heater, etc.