What is a good brand of hot water bag

Electric hot water bag heating basic principle

Electric hot water bags are generally heated in three ways, respectively, electrode type, electric heating wire type, heating tube type, while the basic principle of electric heating wire type and heating tube type is similar.

Electrode type electric hot water bag.

Electrode type has two rod-shaped metal conductors inside, a positive level, a negative level, in the presence of electricity, electric hot water bags with electricity flow through the liquid, flowing from one electrode into the other electrode, using the resistance of the solution to heat. Electrode type electric hot water bag due to the internal structure of the liquid conductivity heating, so there is a risk of liquid leakage and electrocution accident in the case of battery charging.

Electrode type electric hot water bag there is a risk of explosion, electrode long-term sexual immersion in the salt solution, it is likely to be leached and rust, and rust from the electrode after falling off the electrode, the resistor of the electrode will be reduced, the heating power of the hand-warming bag with the expansion, at this moment if the thermostat of the electric hot water bag fails.