Direct current heating assembly

The utility model provides a direct current heating assembly which comprises a shell with a containing space, a water passing box contained in the containing space, a PTC heater, a temperature controller and heat insulation cotton, the water passing box comprises a water inlet and a water outlet, the PTC heater is assembled in the water passing box, the heat insulation cotton surrounds the water passing box, and the PTC heater comprises a pair of wires which can be connected to a direct current power source. The PTC heater is matched with the water passing tank, so that liquid in the water passing tank is heated, the structure is simple, the heating efficiency is high, and the device can be popularized and used for cleaning devices. 本实用新型提供一种直流加热组件，其包括具有收容空间的壳体以及收容于所述收容空间的过水箱、PTC加热器、温控器、隔热棉，过水箱包括进水口、出水口，PTC加热器组装于过水箱，隔热棉环绕过水箱，PTC加热器包括一对导线可连接至直流电源。本实用新型通过PTC加热器与过水箱配合，实现了对过水箱内的液体的加热，结构简单且加热效率高，可以推广使用于清洁类装置。