A PTC thermistor module for a temperature control device may include at least one PTC thermistor element, two electrically insulating insulator plates, and a plurality of electrical conductors. The PTC thermistor element may have a flat element cross section, two opposing large outer surfaces, and two opposing small outer surfaces connecting the two large outer surfaces. The two insulator plates may be respectively connected to one of the two large outer surfaces. The plurality of electrical conductors may be configured as a plurality of electrically conductive conductor coatings, which may each be disposed on an associated insulator plate of the two insulator plates. At least one first conductor coating may be electrically connected to a first large outer surface of the two large outer surfaces. At least two second conductor coatings may be electrically connected to a second large outer surface of the two large outer surfaces.

A vehicle heater includes a housing (10) with a circumferential wall (12), defining a combustion air flow space (14), having a fuel line passage opening (30), a combustion chamber assembly unit, and a fuel line (28). The fuel line has a connection end area (54) adjoining the combustion chamber assembly unit (18), an external connection end area (58), outside the circumferential wall and a line area (56) between the end areas and passing through the fuel line passage opening. A sealing formation (32) has a first sealing area (34), meshing with the fuel line passage opening, and a passage opening (52) through which the line area of the fuel line passes. The fuel line has a larger cross-sectional dimension in a throughput length area (60), passing through the passage opening, than in a section of the line area located between the throughput length area and the external connection area.

The present invention relates to a heating device (10), in particular to an electric heating device for a motor vehicle, having a heat exchanger housing (12), heat exchanger core (14) which absorbs heat at a heat input face, and a printed circuit board (20) having electronic components (16, 18) for controlling the heating device (10), wherein the printed circuit board (20) is arranged on an outer side (22) of the heat exchanger housing (12), wherein a temperature sensor (24) is arranged on a side (26) of the printed circuit board (20) which faces the outer side (22) of the heat exchanger housing (12), wherein connecting means (28) are provided which connect the temperature sensor (24) in a heat conducting fashion to the outer side (22) of the heat exchanger housing (12), and wherein the heat input face of the heat exchanger core (14) is connected in a heat-conducting fashion to the heat exchanger housing (12), with the result that a continuous short heat bridge, running through the interior of the heat exchanger housing (12), to the connecting means (28) is generated.

An electric heating device includes a casing that forms inlet and outlet openings for the fluid to be heated and a circulation chamber as well as a connection chamber separated from the circulation chamber by way of a partition wall. A heat-emitting surface of a PTC heating element is exposed in the circulation chamber and is coupled in a heat-conductive manner to a PTC element. The PTC element is in electrically conductive contact, which via electrical conductor tracks with different polarities that are electrically connected in the connection chamber. The casing is a plastic casing provided with a shielding.

A heating arrangement may include at least one PTC heating device with at least one first PTC heating element. The PTC heating device includes at least one second PTC heating element that is distinct from the first PTC heating element, wherein the first and second PTC heating elements may be arranged in a through-flow direction next to one another. Alternatively, a further PTC heating device with at least one second PTC heating element that is distinct from the first PTC heating element may be provided, wherein the first and second PTC heating devices may be arranged in the through-flow direction next to one another.

An electric heating device comprises a housing with a partition wall which separates a connection chamber from a heating chamber for dissipating heat and from which at least one PTC heating device protrudes as a heating fin in the direction toward the heating chamber. The PTC heating device comprises at least one PTC element electrically connected to conductor tracks in the connection chamber. A temperature sensor is connected, in terms of data, to a control device and is accommodated in a sealed manner in a temperature sensor receptacle which is formed in a wall delimiting the heating chamber. The temperature sensor is accommodated in a sliding manner in the temperature sensor receptacle. A support prevents the temperature sensor from sliding out of the temperature sensor receptacle and/or directly plugs a temperature sensor contact element of the temperature sensor in the connection chamber into a printed circuit board.

An electrical fluid heater, in particular water heater, preferably for a motor vehicle, including at least one fluid accommodating container and at least one heating conductor having a conductive polymer structure, for heating fluid, in particular water, accommodated in the fluid accommodating container.

A cabin heater for a vehicle includes a frame with spaced apart longitudinal supports to locate a common electrical return and a power input. Pluralities of heating units extend between the supports and attach to the return and input. Each unit has a ceramic heater and one or more positive temperature coefficient (PTC) elements. The ceramic heater quickly and directly heats air and helps lower the inrush current of each PTC element upon initial powering. The power input also includes conductive rails spaced apart and electrically isolated from one another to individually supply power to either the ceramic heater or the PTC elements, but not both. Conductive extensions pass through the rails and fold into contact to power either the heater or the PTC elements. The electrical return commonly attaches the PTC elements and the heater, including a spring connection.

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).

A system (1) for heating a vehicle interior comprising at least one subsystem (2) for heat delivery to the vehicle's interior, cab or the like, at least one subsystem (3) for supplying electrical energy to the system (4) for heating, at least one subsystem (5) for controlling the system (1) and at least one subsystem (6) for storing electrical energy (2) so that heat delivery to the vehicle's interior, cab or the like comprises at least one heat delivery device (7). The heat delivery device (7) comprising at least one infra-heater and at least one air flow generating device (8). The said air flow generating device (8) creating an air flow that flows past the infra-heater allowing the airflow to absorb the heat energy which is a by-product of the infra-heater which results in a combination of convection heat and direct infra-heat. The system (1) provides a more even heat dissipation achieving higher efficiency, and that the system's (1) subsystem (6), for storing electric energy, includes at least one accumulator, separated from the other electrical components of the vehicle.