Water circulation heating of vehicle power batteries is a common battery temperature control scheme, also known as battery fluid circulation heating. Its main principle is that by installing water pipes between the battery modules and around the battery pack, the circulating water forms a closed circulation system around the battery modules and the battery pack. At the same time, a water circulation pump and heater are installed in the system. By controlling the operation of the pump and the switch of the heater, stainless steel radiant tube heaters and cooling control of the battery can be realized to ensure that the battery works in the optimal temperature range, thereby improving the battery life. performance and longevity.

Compared with other temperature control solutions, such as air cooling, heat sinks, battery heating pads, etc., water circulation heating has the advantages of higher energy transfer efficiency, more uniform temperature distribution, wider temperature adjustment range and better safety performance. . Therefore, in the current field of new energy vehicles, water circulation heating(stainless steel tube heater) has become a mainstream battery temperature control solution, and is widely used in various types of new energy vehicles such as electric vehicles, hybrid vehicles and fuel cell vehicles.