An electric heater in particular for a heating or an air-conditioning system of a motor vehicle, with a heater core having a plurality of electric heating elements having heaters and contact elements to electrically contacting the heaters, said heater core further having a plurality of radiator elements which thermally contact the heating elements, wherein the heater comprises a central portion and two lateral portions, wherein the central portion is arranged between the two lateral portions, wherein the radiator elements are thermally contacting the heater in a central portion and the contact elements are electrically contacting the heater in the lateral portions.

An apparatus for a heating device for a vehicle comprises a layer stack which, in a stacking direction, has a heating conductor layer, an electrically conductive layer which forms a contact region, wherein a contour in a projection in the stacking direction of the electrically conductive layer is prespecified, in order to prevent a hotspot on the electrically conductive layer, by at least one of a prespecified width of a front side of the electrically conductive layer which faces a central region of the heating conductor layer, a prespecified distance from a joint of the heating conductor layer, and a prespecified curvature of the contour.

Provided is a positive temperature coefficient (PTC) unit for a vehicle heater. The PTC unit according to an exemplary embodiment of the present invention includes: a heat generation part which includes PTC elements; and a heat radiation part which is provided on at least one surface of the heat generation part and includes a heat radiation base material and a heat radiation film provided on at least a portion of an outer surface of the heat radiation base material to improve heat radiation performance. According to the present invention, improved heat radiation performance may be exhibited, and concurrently, heat radiation performance due to excellent durability may be exhibited for a long period of time without a structural change for increasing a specific surface area of a heat radiation part while reducing an air ventilation property, so as to improve heat radiation performance. In addition, since an air ventilation property of the heat radiation part is increased, it is possible to prevent increases in noise and power consumption due to excessive use of peripheral devices such as a fan. Furthermore, since it is possible to prevent overheating of a PTC module and overload of a PTC module control circuit, which are caused by a reduction in the air ventilation property of the heat radiation part, a high-priced and high performance control circuit may not be required, thereby implementing a PTC heater for a vehicle with reduced production costs.

A heating apparatus for a vehicle includes: a heat-generating apparatus including a heat-generating portion generating heat and a heat-insulating portion positioned above the heat-generating portion and insulating the heat generated from the heat-generating portion; and a storage apparatus storing the heat-generating apparatus.

In a heating-medium heating unit equipped with a first heating-medium circulation box and a second heating-medium circulation box which are in close contact with both surfaces of a PTC heater, in which heating-medium circulation passages are formed in the interior, and which are joined to each other in a liquidtight manner, wherein joining surfaces are sealed with liquid gaskets, the heating-medium circulation passages are provided with joining-surface cooling channels that cool the joining surface which is sealed with a liquid gasket and on which the heat from the PTC heater acts. The joining-surface cooling channels are provided at positions closer to the joining surface than to the PTC heater.

A combustion chamber assembly unit for a fuel-operated vehicle heater is provided. The combustion chamber assembly includes a combustion chamber housing (12) with a combustion chamber (18), which is defined by a circumferential wall (14) and by a bottom area (16). An oxidation catalytic converter device (54), through which combustion waste gases can flow, is provided downstream in relation to the combustion chamber (18). The combustion chamber assembly further includes a hydrocarbon storage device (74) or/and a nitrogen storage device (76).

A vehicle panel includes channels, wherein a first channel includes a first wire capable and a second channel includes a second wire and each wire is capable of carrying at least one of power or a vehicle data signal. The panel also includes a connection point connectable to at least one of a battery or a vehicle computing system, wherein selection of connection between the vehicle computing system or battery to a given connection point provided to a given one of the first or second channels dictates whether the channel carries the vehicle data signal or power. Also, the panel includes holes connecting to the first wire and at least two of the holes connecting to the second wire allowing a connection probe to be inserted into a respective hole to connect to a wire included in a channel to which the hole connects.

A heating apparatus which is assembled by inserting a columnar heating wire heater 2 into a hole 30 provided in a case 3, and heats cooling water introduced into the case 3 by the heating wire heater 2, wherein the heating wire heater 2 is inserted into boss portions 42 and 43 provided in the case 3, both end portions are supported by O-rings 50 disposed between inner peripheral walls of the boss portions 42 and 43 and an outer peripheral wall of the heating wire heater 2, a gap 45 for passing the cooling water is formed along an outer peripheral surface of the heating wire heater 2 between the two boss portions 42 and 43 within the case 3, and a tapered portion 60 and a rounded portion 61 are formed on an end portion on an insertion-direction distal end side of the heating wire heater 2.

A vehicle air conditioning apparatus includes an air conditioning case including a case body having a case opening that is open to an air conditioning opening, and a case cover that can open and close the case opening. The case cover can be attached/detached to/from the case body via the air conditioning opening outside of the vehicle interior. An evaporator and a heater can be attached/detached to/from the case body via the air conditioning opening outside of the vehicle interior, while the case cover is removed from the case body to open the case opening.

In a series dehumidification heating mode, a refrigerant discharged from a compressor circulates in order of a heating portion, a first depressurization unit, an outdoor heat exchange portion, a second depressurization unit, an indoor evaporation portion, and a suction port of the compressor. In a hot gas dehumidification heating mode, (i) the refrigerant discharged from the compressor circulates in order of a branch portion, the heating portion, the second depressurization unit, the indoor evaporation portion, a merging portion, and the suction port of the compressor; (ii) the refrigerant discharged from the compressor circulates in order of the branch portion, the heating portion, a third depressurization unit, the merging portion, and the suction port of the compressor; and (iii) the refrigerant discharged from the compressor circulates in order of the branch portion, a bypass passage, the merging portion, and the suction port of the compressor.