Why does the charged hot water bag automatically break down? Why is there a time when there is a good time to have a grunt? What's in the hot water bag?To express gratitude to those who answered
It is like boiling water with the electric heating, plug in electricity after the heating began to reflect, to its boiling point after the stop heating!
This is the basic method of electrothermal heating electrode used, the temperature sensitive element, control the temperature of the liquid in the water bag, generally reach 65 degrees will disconnect the circuit to stop heating. This ensures that hot water bags will not be too hot, just relax. In order to ensure the safety of the temperature control circuit after the problem, usually with a hot fuse, when overheating, the fuse wire (equivalent to the fuse) will be disconnected, so as to ensure the safety of users.
The working principle of the charging hot water bag is that the internal heating device is firstly heated by electricity, and then the main material filled with the supersaturated solution (sodium acetate) is heated. After heating, the supersaturated solution in the solution will dissolve at high temperature because of the solubility of the solute. Then, start an exothermic process, in this process, the solute begins to crystallize and become solid, stable, in the process becomes solid, heat is gradually slow, so we feel the warm bag slowly warm up, but the duration is very long.
