Abstract: What is described is a method for manufacturing an electrical heating device, wherein electrical heating resistors are disposed in tubes of an extruded profile, and openings are cut into a plate of the extruded profile connecting the tubes. According to this disclosure, fastening sections of the extruded profile are plastically deformed and, by means thereof, heat sinks are fastened on the extruded profile. A corresponding electrical heating device is also described.

Abstract: The invention describes a heating apparatus comprising at least one heater (9) in which one or more electric heating elements (11) are arranged, and at least one heat transmitter (1), which is connected with the at least one heater (9), comprises heat transmitter surfaces and is formed from an extruded profile (1a, 28, 28a) in which the at least one heater (9) is fitted, in which at least part of the walls (6, 22, 22a) of the extruded profile (1a), which are not in contact with a heating element (11), is provided with openings through which a gaseous or liquid medium can flow through the extruded profile (1a, 28, 28a) in transverse direction to the direction of extrusion (17).

Abstract: The invention relates to a vehicle heater, comprising at least one pipe, which has a plurality of chambers, ceramic heating elements, which are arranged in the chambers, and contact plates, which rest against the heating elements in the chambers via a front side and face an upper side or underside of the chamber via a rear side, wherein at least two chambers of the pipe are separated by an intermediate wall, which runs from the upper side to the underside of these two chambers. The contact plates have a slit, in which the intermediate wall is arranged.

Abstract: The invention relates to a continuous-flow heater having a housing, which comprises an inlet opening and an outlet opening, and a heater housing, which comprises at least one tubular chamber, in which at least one heating element is arranged. In accordance with this disclosure a plurality of ribs are arranged on a front side and a rear side of the heater housing, said ribs defining, between themselves, flow channel portions for liquid to be heated.

Abstract: The invention relates to a heating rod, comprising a housing made of metal, a heating element disposed in the housing, and a contact plate, which is seated against the heating element with a front and which protrudes from the housing. It is provided according to this disclosure that the contact plate is an aluminum sheet having an anodized back and the contact plate comprises projections for positioning the heating element.

Abstract: This disclosure relates to a ceramic rod having a ceramic PTC heating conductor and a ceramic insulation layer, which is sintered with the PTC heating conductor. According to this disclosure, the PTC heating conductor has a transition temperature that does not exceed 300° C., and preferably does not exceed 200° C. This disclosure also relates to the use of a ceramic rod, which comprises a ceramic PTC heating conductor and a ceramic insulation layer, which is sintered with the PTC heating conductor, as a heating rod for an auxiliary heater or a liquid heater in a motor vehicle. This disclosure also relates to an auxiliary heater for heating an air flow and a liquid heater comprising a heating rod, which is a ceramic rod, which has a ceramic PTC heating conductor and a ceramic insulator sintered therewith.

Abstract: The invention relates to electric vehicle heater comprising at least one tube, in which at least one heating element is arranged, and at least one heat transfer panel, which is fastened to the tube and has a plurality of flow openings for an airflow to be heated. According to the invention, the heat transfer panel is a component that sits in a groove in the tube, said groove running in the longitudinal direction of the tube. The invention also relates to a method for producing a vehicle heater, wherein at least one heating element is arranged in a tube and at least one heat transfer panel is inserted into a groove on an outer side of the tube.

Abstract: The invention relates to an electric heating device for heating fluids, comprising at least one heating rod, which has at least one heating element, a housing, which encloses the heating rod and has an inlet opening and an outlet opening, wherein the inlet opening and the outlet opening are interconnected by a winding flow channel. According to the invention, the flow channel forms a helix that has a longitudinal axis, wherein the heating rod is disposed next to the longitudinal axis of the helix and extends through a helically winding wall of the flow channel at a plurality of points.

Abstract: Some invention embodiments relate to a method for forming a fuse which electrically connects two metal surfaces (2) that are arranged on a printed circuit board (4) next to each other and spaced apart from each other. It is provided according to the invention that the two metal surfaces (2) are each partially covered with a protective coating (5), wherein a partial region forming a contact region (2a) remains uncovered, liquid soft solder material (1) which bridges the gap between the two metal surfaces (2) is applied onto the two uncovered partial regions (2a), and the protective coating (5) in a surrounding area of the solder material (1) is removed after the soft solder material (1) has solidified, in order to form receiving regions (2b) which are wetted by the solder material (1) when the latter fuses, with the result that the solder material (1) flows off from a printed circuit board region (3) between the two metal surfaces (2) and the electrical contact formed by the solder material (1) is interrupted.

Abstract: The invention relates to a heating device comprising at least one tube housing in which at least one PTC heating element is arranged, and heat exchangers which are secured on the tube housing. According to the invention, it is provided that the heat exchangers are secured on the tube housing by stamping.

Abstract: The invention relates to an electric heating device for heating fluids, comprising at least one heating rod, which has at least one heating element, a housing, which encloses the heating rod and has an inlet opening and an outlet opening, wherein the inlet opening and the outlet opening are interconnected by a winding flow channel. According to the invention, the flow channel forms a helix that has a longitudinal axis, wherein the heating rod is disposed next to the longitudinal axis of the helix and extends through a helically winding wall of the flow channel at a plurality of points.

Abstract: This disclosure relates to a method for producing a heating rod for a vehicle heating apparatus, said method comprising the following steps: arranging at least one PTC element and at least one contact element in a tube, which is formed from sheet metal and is open along a longitudinal side; welding portions of the sheet metal that bear against one another by means of a weld seam running in the longitudinal direction of the tube. This disclosure also relates to such a heating rod.

Abstract: The invention relates to a electric heating device for heating fluids, comprising at least one heating resistor, a screw, which defines a helical flow channel, and a tube housing, which surrounds the screw. In accordance with this disclosure, the screw has a core in which the at least one heating resistor is arranged.

Abstract: The invention relates to a heating device comprising at least one tube housing in which at least one PTC heating element is arranged, and heat exchangers which are secured on the tube housing. According to the invention, it is provided that the heat exchangers are secured on the tube housing by stamping.

Abstract: The invention relates to a heater comprising at least one electric heating element and at least one heat-dissipating panel that has holes through which a fluid to be heated can flow, The heat-dissipating panel is heat conductively connected at the at least one heating element and is provided with a front side facing the heating element and a rear side. In an area lying across from the heating element, the heat-dissipating panel has a cross-section that is open towards the heating element.

Abstract: The invention relates to an apparatus for heating fluids, comprising a housing in which a duct runs, through which the fluid to be heated can flow and which leads from a housing opening for fluid to enter to a housing opening for fluid to exit. According to the invention, the duct extends in several convolutions along a housing wall carrying at least one heater housing, in which at least one electric heating element is arranged.

Abstract: A electric circuit includes a connection to a current source, an electric load, and a thermal-mechanical fuse which, in the case of failure at an excessive heat emission, interrupts the current supply to the load, which is effectuated by a feeder in which is arranged a spring having two ends, at least one end is soldered to a solder point provided in the feed line. The one solder point is under a mechanical pretension caused by the restoring force of a spring, that separates the solder joint between the spring and the solder point in the feed line, when the solder melts at the solder point.

Abstract: Some invention embodiments relate to a method for forming a fuse which electrically connects two metal surfaces (2) that are arranged on a printed circuit board (5) next to each other and spaced apart from each other. It is provided according to the invention that the two metal surfaces (2) are each partially covered with a protective coating (5), wherein a partial region forming a contact region (2a) remains uncovered, liquid soft solder material (1) which bridges the gap between the two metal surfaces (2) is applied onto the two uncovered partial regions (2a), and the protective coating (5) in a surrounding area of the solder material (1) is removed after the soft solder material (1) has solidified, in order to form receiving regions (2b) which are wetted by the solder material (1) when the latter fuses, with the result that the solder material (1) flows off from a printed circuit board region (3) between the two metal surfaces (2) and the electrical contact formed by the solder material (1) is interrupted.

Abstract: A electric circuit includes a connection to a current source, an electric load, and a thermal-mechanical fuse which, in the case of failure at an excessive heat emission, interrupts the current supply to the load, which is effectuated by a feeder in which is arranged a spring having two ends, at least one end is soldered to a solder point provided in the feed line. The one solder point is under a mechanical pretension caused by the restoring force of a spring, that separates the solder joint between the spring and the solder point in the feed line, when the solder melts at the solder point.

Abstract: The invention describes a heating apparatus comprising at least one heater (9) in which one or more electric heating elements (11) are arranged, and at least one heat transmitter (1), which is connected with the at least one heater (9), comprises heat transmitter surfaces and is formed from an extruded profile (1a, 28, 28a) in which the at least one heater (9) is fitted, in which at least part of the walls (6, 22, 22a) of the extruded profile (1a), which are not in contact with a heating element (11), is provided with openings through which a gaseous or liquid medium can flow through the extruded profile (1a, 28, 28a) in transverse direction to the direction of extrusion (17).