A SMALL-SIZED POOL AND PTC HEATER FOR INTERNAL LIQUID HEATING

摘要

A small sink and a PTC heater for heating a liquid therein. The PTC heater comprises: a PTC heating component formed of several heating cores made of a PTC ceramic material; and at least one insulating and sealing member disposed in sequence outside the PTC heating component. The insulating and sealing member comprises: several insulating layers and at least one sealing layer disposed outside the insulating layers. The heating cores made of the PTC ceramic material can completely eliminate the fire hazards. The at least one insulating and sealing member can effectively eliminate the risks of electricity leakage. By disposing two insulating and sealing members, the insulating requirements specified by the IEC standard and the UL standard are met, which is suitable for high-power applications. The PTC heater also has a good water path sealing capability, which can therefore be used for heating a liquid in the small sink.