Abstract: A highly-efficient, hot-water generating, car-mounted heater with an internal liquid flow path includes a heater unit and a case. The heater unit includes a PTC element, an electrode plates, an insulating sheet, a tube body, a seal, and a radiator. The radiator is provided on the radiation faces of the tube body. The radiator has a plurality of fins, and a plurality of flow paths that are partitioned by the plurality of fins and extend in a direction that intersects with the longitudinal direction of the tube body. The heater unit is housed in the case with one ends of the flow paths of the radiator made to oppose the flow inlet and the other ends of the flow paths made to oppose the flow outlet.

Abstract: An on-vehicle heater according to the invention includes: a heating body unit including a heater element; an electrode member overlapped in contact with the heater element; an insulating sheet enveloping the heater element and the electrode member; and a tube housing the heater element and the electrode member enveloped in the insulating sheet; a radiator unit stacked on the heating body unit; and a cap mounted on an end portion of the heating body unit, the electrode member having a terminal portion being led out of the tube from an end opening of the tube, bent to pass through the cap, and led out of the cap.

Abstract: An on-vehicle heater according to the invention includes: a heating body unit including a heater element; an electrode member overlapped in contact with the heater element; an insulating sheet enveloping the heater element and the electrode member; and a tube housing the heater element and the electrode member enveloped in the insulating sheet; a radiator unit stacked on the heating body unit; and a cap mounted on an end portion of the heating body unit, the electrode member having a terminal portion being led out of the tube from an end opening of the tube, bent to pass through the cap, and led out of the cap.

Abstract: An insulated waterproof-type heater includes: a heat-generating body unit including, an heat-generating element, an electrode member superposed in contact with the heat-generating element, an insulating sheet enveloping the heat-generating element and the electrode member, and a tubular body containing internally the heat-generating element and the electrode member that are enveloped in the insulating sheet; a heat-releasing body unit stacked on the heat-generating body unit; a cap mounted at an end of the heat-generating body unit; and a sealing material having an electrically insulating property and a waterproof property, and being filled inside the cap to seal both ends of the tubular body.