The invention discloses a heating component. The heating component comprises a housing, at least one heating element and at least one connector. The heating element is disposed inside the housing. Theconnector is located on an outer wall of the housing. The connector and the housing are assembled and fixed. The connector comprises a groove and a groove wall. The groove wall is located on a circumferential side of the groove, and at least a portion of the groove wall is recessed outwardly. The heating component comprises at least one cavity, the cavity comprises a space between the groove walland an outer wall of the housing, and the connector comprises a first interface and a second interface. The first interface is communicated with the cavity, the second interface is communicated withthe cavity, and the first interface and the second interface are communicated with each other through the cavity. The cavity for the flow of a fluid is arranged between the connector and the housing.The flow of the fluid in the cavity takes away the temperature of the house surface so that the temperature of the house is lower. The connector and the housing are assembled and fixed to achieve convenient replacement of the connector and help to increase the service life of the heating component.