Warm hand products include electric cake and electric water bag. According to the heating principle of the electric water bag, there are two types: electrode type and electric heating element type
The solid electric cake is filled with thermal insulation cotton (such as asbestos and other materials). The working principle is: the double temperature control electric thermal energy storage structure is used to gradually release the heat energy. The automatic overheating protection device and automatic thermal insulation indicator are installed inside. A small electric furnace is controlled by a PC thermistor switch. PTC is a thermistor with positive temperature coefficient. When the current passes through, it will generate heat (the heat of the electric furnace will also be transmitted to it). When the temperature reaches a certain value, Its resistance will increase sharply and it can be regarded as disconnected. Therefore, the heat treasure will stop consuming electric energy at this time, and then it will release heat slowly by insulation of the electric furnace with insulation cotton.
2. The soft liquid electric heating treasure uses new technology to store energy and heat, and the temperature rises rapidly. One time water injection, permanent use, unique explosion-proof scald free device, temperature control protection; Long service life; Heat preservation and durability. The working principle is improved on the basis of body I electric cake. The electrode type heating method is adopted. In the case of high-quality temperature control and thermal fuse double temperature control insurance, the temperature controller will automatically cut off the circuit when the liquid temperature in the bag reaches 65 ° C, stop heating and the temperature controller control fails. The thermal fuse cuts off the power supply and terminates heating. If a new product needs to be replaced, please do not try to repair it.
