Electric heating device and method for its manufacture An electric heating device 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 element with a heating element casing protrudes in the direction toward the heating chamber. At least one PTC element and conductor tracks, electrically connected in the connection chamber for energizing the PTC element with different polarities and connected to the PTC element in an electrically conductive manner, are supported in the heating element casing an insulated manner. For improved support of the PTC heating element, a holding element, engaging around the heating element casing, is connected to the partition wall on its side facing the heating chamber and is connected to the heating element casing. Also disclosed is a method for the manufacture of such an electric heating device.

Disclosed is a temperature-raising system for a battery module, which includes a heater assembly including a heater and a heater cover. The temperature-raising system includes: a battery module that includes one or more batteries; two or more heater assemblies that are attached to the battery module using a fixing means; a temperature sensor that is connected to the battery module or to the heater assemblies and senses a temperature of the battery module; and a controller that receives a preset target temperature, senses the temperature of the battery module using the temperature sensor, and turns on or off the heater using a voltage of the battery module, based on the preset target temperature and the temperature of the battery module that is sensed by the temperature sensor, the preset target temperature being a temperature that the battery module is targeted to reach.

A PTC heating element comprises at least one PTC element and two conductor paths which are assigned to different polarities and which are electrically conductively connected to the PTC element and are provided with connection elements for the electrical connection of the PTC element. The PTC heating element has improved heat discharge due to the provision of an electromagnetic shielding which is formed from a fluid-permeable metal structure and which surrounds the PTC element and the conductor paths.

A heater device includes a planar heat generating portion configured to generate heat when being energized, a detection circuit having a plurality of planar electrodes disposed on one surface side of the heat generating portion, and a controller configured to control an amount of energization to the heat generating portion based on a detection result of the detection circuit. The heat generating portion and the plurality of electrodes are disposed in parallel with each other. The heater device is configured to have a heat generating region in which the heat generating portion is present and a non-heat generating region in which the heat generating portion is not present when the plurality of electrodes and the heat generating portion are projected in a direction perpendicular to the plurality of electrodes and the heat generating portion. Furthermore, the plurality of electrodes include a heat-diffusion promoting portion provided to be included at least in the non-heat generating region.

Exemplary embodiments are directed to thermally driven actuator systems including a thermally driven element and one or more heating elements coupled to and in thermal contact with the thermally driven element. The thermally driven element can be capable of being selectively reconfigured in shape based on a thermal strain or temperature driven phase change. The one or more heating elements can be configured to selectively and independently apply heat to one or more of a plurality of different regions of the thermally driven element to selectively raise a temperature or temperatures of the selected region or regions of the thermally driven element to selectively reconfigure the shape of the thermally driven element.

A system and method for heating a surface. The system can be a solar panel system and the surface can be a solar panel. The system includes a heat source and a processor. The processor determines an amount of heating energy for removing an accumulated material from the solar panel to obtain an unobstructed solar panel, determines an amount of energy production of the unobstructed solar panel, and controls the heat source to apply the determined amount of heating energy to the solar panel when the determined amount of energy production is greater than the amount of heating energy.

A thermoacoustic device includes a stage coupled to a bar, wherein the stage includes a first heating component on a first terminus of the stage. The stage further includes a first cooling component on a second terminus of the stage. A thermal conductivity of the stage is higher than a thermal conductivity of the bar. A heat capacity of the stage is higher than a heat capacity of the bar.

During operation, a facility may utilize many sensors, such as cameras, to generate sensor data. Some of these sensors may be housed within protective enclosures. The enclosures may be inside specially controlled environments, such as refrigerators, freezers, and so forth. During operation of the facility, moisture may accumulate on these enclosures, impairing the ability of the camera to acquire an image through the window. Described are devices to selectively heat a viewable area of the window such that moisture accumulation is reduced with minimal power use.

The invention relates to an electrically conductive film (10) having an electrically nonconductive substrate layer (12), and an electrically conductive metal layer (14) that has a structure produced by material removal and that on a first side is joined, at least in sections, to the substrate layer (12).

A system for controlling heating of a screed plate includes screed plate disposed along the paving material delivery path. A first temperature sensor is operative to monitor a screed plate temperature and a second temperature sensor along the paving material delivery path is operative to monitor an actual paving material temperature of a paving material being applied to a work surface. A controller is configured to determine an estimated paving material temperature adjacent the screed plate based upon the actual paving material temperature and operate a heater to maintain the screed plate temperature within a temperature variation range relative to the estimated paving material temperature.