An electric heating device, particularly for a motor vehicle, is provided that has at least one heating element disposed in a housing, whereby the housing has a housing cover and/or a housing base with at least one opening through which the at least one heating element is disposed protruding at least in sections, whereby a sealing element in which the at least one heating element is disposed is provided in the at least one opening in the housing cover and/or in the housing base.

An electric heater, and an apparatus, a heating and air conditioning system and a vehicle, each comprising the electric heater, are provided. The electric heater comprises an outer frame; a heating core configured to connect to a power source and disposed within the outer frame; and a sealing-waterproof glue member disposed within the outer frame and configured to encase at least one end of the heating core. The heating core further comprises: a plurality of heat dissipating components and heating components arranged alternately, and each of the heat dissipating component is coupled with a heating component via a thermal conductor. Each of the heating components further comprises a core tube and a positive temperature coefficient thermistor disposed in the core tube.

An electrical heating device includes a fluid-tight casing comprising inlet and outlet openings for the fluid to be heated, and at least one heat-generating element disposed in the casing. The heat generating element includes at least one PTC element and conductor elements of different polarities received in a flat tube. Heat heat-emitting elements abut against opposite sides of the flat tube. In order to increase the power density, the heat-emitting elements abut against the flat tube subject to spring pretension.

Disclosed is an electrical heating device for heating the interior of a vehicle, comprising a plurality of PTC heating rods each comprising ceramic PTC heating resistors, heat sinks for transferring heat from the PTC heating rods to an air flow, and a holder holding the PTC heating rods. The PTC heating rods are connected in series to an NTC heating rod comprising at least one NTC resistor, wherein the NTC heating rod is held by the holder.

An electric heater for an automobile vehicle, with at least one heating element and with at least one circuit board, whereby the circuit board has at least one contact area through which an electrical connection between a heating element and a power supply can be realized. The heating element has at least one PTC-heating element, whereby the heating element can be clipped to the circuit board via a connector clip, and whereby the connector clip has two flexible extensions, which are arranged opposed to each other.

An electric heating device includes an electric control device with a control housing that is in structural unity with a housing of a power section. The power section has a frame forming a heating chamber. At least one PTC heating device with at least one PTC element and conductor elements is provided in the heating chamber. The control housing forms a chamber which is separated from the frame by a partition wall. A heat sink projects from the partition wall into the power section. The electric control device has a printed circuit board and at least one power switch which generates a power loss and which is connected in a heat-conducting manner to a surface of a heat sink. An electrically insulating layer and a spring element, which holds the power switch applied under pretension against the surface of the heat sink, are provided between the power switch and the heat sink.

A cooling and retaining body for holding heating elements, in particular PTC heating elements, having a heating-element holder, in which the heating elements are mounted. The heating element holder has a plurality of circumferentially distributed accommodating regions, in each of which at least one heating element is arranged, wherein the accommodating regions are formed between an outer part and an inner part, which is arranged in the outer part, and at least the outer part has a polygonal profile with a number of corners connected by sides, wherein the accommodating regions are arranged in the corners of the polygonal profile, and the sides of the polygonal profile are deformed elastically in order to generate a clamping force which acts on the respective heating elements.

An electric heater for an automobile vehicle, with an electric heating element, which is connectable to an electric power source, with an insulating element and with a tube with the electric heating element being placed inside the tube and being electrically insulated from the tube, with the tube having at least one opening through which the insulating element and the electric heating element can be inserted into the tube. The electric heater features a safety element, which is plugged into the at least one opening of the tube, with the safety element having at least one distance element, which defines the orientation of the electric heating element and/or the insulating element in relation to the tube. Furthermore the invention relates to a heat exchanger with at least one electric heater.

The invention relates to a heating device for heating the interior of a motor vehicle, comprising a plurality of heating modules arranged in at least one heating unit, each heating module comprising at least one heating resistor, at least one heat exchanger configured for delivering heat generated by the heating resistor to an airflow, and a rectangular frame surrounding the at least one heating resistor and the at least one heat exchanger, each frame having openings in opposed frame legs, wherein in the at least one heating unit the frame legs, comprising openings, of adjacent heating modules face one another and electrical connection elements reaching through the openings electrically connect the heating modules to one another.

The invention relates to a heating module for a supplemental electric heating device for heating an airflow, comprising at least one heat-conductive bar against which at least one electric resistor is arranged. The heat-conductive bar is partially electrically insulated by an insulating coating in order to prevent potential short-circuits and to ensure proper operation and optimal safety when heating the passenger compartment of a vehicle.