The liquid inside the hot water bag is not water, you can not just pour it out.
First, the liquid inside the hot water bag is what
The liquid inside the bag is not ordinary water, with conductive chemicals, hot water bags are caused by electromagnetic induction of heat caused by electromagnetic induction of the item is fully enclosed down, in order to avoid electricity, if the electricity is turned on after the electromagnetic field, iron and magnetism is reflected in each other, so that the water inside the said vortex and hysteresis and then generated heat, and electric hot water bags company how the electrical converter will be hot is Related are hot due to hysteresis and eddy currents.
Two how to buy a hot water bag
1. touch the material, the national standard hot water bag manufacturers to select the electric heating wire (tube) type hot water bag, with the help of touching to identify, if you feel that the internal structure is a hard little short stick, is the electrode type. If you feel that the bottom of the hot water bag can touch the mesh-like structure of the object is the electric heating wire type hot water bag, if you can touch the internal structure has a large volume of U-shaped, arc-shaped pipe is the heating tube type hot water bag.
2. Look at the logo, pay attention to the outer packaging of the hot water bag whether the product's trademark logo, national standard hot water bag custom certificate of compliance, FAQ, certification certificates, manufacturer's name and other signs, do not have to casually purchase "three no products" to avoid damage to the interests. Choose a reliable brand. Can pay attention to the online shopping site is not a registered trademark, product certification certificates, commodity labels are not complete brand, commodity quality inspection standards and other information content.
3. More than, customers should carry out more comparison when shopping, because the electric heating wire (tube) type hot water bag raw materials cost, most of the factory price in 25 yuan a 30 yuan above the price of goods if less than this price, you need to be careful to buy. In addition, customers in the purchase of hot water bags must be saved after the consumer voucher, to facilitate consumer rights.
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