The invention relates to a frame (3) for an electric heating device (1), comprising at least one housing (7) intended to receive a heating element (5), said housing being defined by a plurality of longitudinal walls (23, 25) forming an insertion path for a heating element, and said insertion path being defined longitudinally by a back wall extending opposite an opening through which the heating element can be inserted into the housing. According to the invention, at least one of the longitudinal walls comprises a displacement reducing element (10) projecting from the wall. The displacement reducing element (10) comprises a ramp (11) that slopes gradually into the housing, towards the opposite longitudinal wall, said displacement reducing element (10) being arranged such that the downstream end (14, 15) thereof extends at a distance from the back wall (21).

An electrical heating device, in particular for a vehicle, includes a heat exchanger body, with a heat transfer surface and an at least partially closed cavity. The at least partially closed cavity has a wall section that at least partially delimits the at least partially closed cavity that is adjacent to the heat transfer surface. A pyrotechnical charge is arranged in the at least partially closed cavity, and the at least partially closed cavity has a further wall section delimiting the at least partially closed cavity at least partially and to which an electrical connection line of the electrical heating device is adjacent.

A heat generator includes an electrode terminal, a heating element, an electrically conductive housing, and an insulator. The electrode terminal is stacked on the heating element in a stacking direction. The housing houses a stacked body formed of the heating element and the electrode terminal. The stacked body includes a pair of side wall surfaces each extending in the stacking direction, an element side end surface, and a terminal side end surface. The element side end surface is in close contact with the case inner wall surface. Both the terminal side end surface and the pair of side wall surfaces are entirely in close contact with the case inner wall through the insulator. The housing includes a pair of facing walls facing and extending along the pair of side wall surfaces to serve as a positioning member that restricts the heating element from moving in the intersecting direction.

A PTC heating device for introduction into a receiving pocket of an electric heating device includes at least one PTC element, a conductor track that is electrically connected to the PTC element, and insulating layers that are abutted in a thermally conductive manner against the PTC element. A frame-shaped casing joins the at least one PTC element, the conductor track, and the insulating layers as a unit. The frame-shaped casing has a leading frame member with elastic guide tabs which, in an initial assembly state, project on oppositely disposed sides of the frame-shaped casing over the heat-emitting open surface respectively associated with them, which are inclined obliquely from the leading frame member in a direction of the open surface, and which are elastically pivotable. During heating device assembly, the PTC heating device is centered and guided by the elastic guide tabs when introduced into a heating rib of a heating chamber.

A PTC heating element for a PTC heating module for a vehicle is disclosed. The PTC heating element includes a PTC thermistor having two main surface that, in a thickness direction of the PTC thermistor, are located opposite one another and spaced apart from one another. Two electrically conductive contact layers are applied to the two main surfaces of the PTC thermistor. A total quotient between a total geometrical area of the two contact layers and a total geometrical area of the two main surfaces is substantially below 1 and substantially above 0, e.g., between 0.05 and 0.85.

A PTC heating cell has a cuboid-shaped PTC element and two metallizations electrically separated from each other and provided on the surface of the PTC element for the introduction of current to the PTC element. The two metallizations are provided as strips formed over an entire longitudinal extension (L) of the PTC element on diagonally oppositely disposed surface sections of the PTC element.

The invention relates to an electrical heating device (10) for a motor vehicle with a heating resistor designed as a conductor track (12) on a substrate (20), wherein the conductor track is at least partially arranged in a bifilar format. The invention further relates to a motor vehicle having such an electrical heating system.

A heating device including: a housing having an opening and surrounding an interior space. A fan is arranged in proximity to the housing. A heating element is arranged in the housing, and a heat distribution element arranged in the housing and in proximity to the heating element. The heating element is adapted to generate heat. The heat distribution element is adapted to transfer the heat generated by the heating element to air in the interior space, and the fan is adapted to provide a flow of air through the interior space of the housing such that the air is heated. The heated air leaves the housing through the opening.

The present invention relates to a vehicle radiation heater being configured to perform heating by directly emitting radiant heat toward a passenger at an early stage of starting of a vehicle in winter. The vehicle radiation heater according to the present invention can be simple in structure, thereby being easy to manufacture, can quickly emit high-temperature radiant heat over the entire area of the heater, thereby enhancing rapid and comforting heating effects, and can maintain a constant temperature, thereby preventing a risk of overheating.

The present disclosure describes a heating element for, e.g., an electrically drivable motor vehicle. The heating element includes a heating body having large heating areas oriented opposite one another, at least one insulating body for electrical insulation, and at least one functional body for providing an electrical conducting function and a bonding function. The at least one functional body includes a pair of fiction bodies having large functional body areas oriented opposite to one another. The pair of functional bodies are arranged on the heating body such that at least one large heating area lies substantially with its full surface area against a respective large functional body area of the respective functional body. The at least one functional body is of a two-part or multi-part structure.