Abstract: The invention relates to a heating device (1) for an air-conditioning housing, said heating device (1) comprising a heating body (2) supplied with current for heating an air flow passing through said heating body (2), said heating body (2) comprising heating elements through which said current passes and which are arranged in electrically insulated tubes (4) of the heating elements, said heating elements being controlled via a distribution unit (3), said heating device (1) comprising means for earthing a plurality of metal elements distributed in the heating body (2) and the distribution unit (3). Said heating device (1) is characterised in that said earthing means consist of a single earthing circuit which passes through the heating body (2) and the distribution unit (3) and is formed by arranging said metal elements in series with direct contact between said metal elements.

Abstract: The invention, according to a first aspect, relates to a cover (4) of an electronic interface housing (300) of an electrical heating device for a motor vehicle, the cover (4) comprising at least one pressing member (44a, 44b) and at least one pressing element (45) which are configured to be in contact with a printed circuit board (5) when the cover (4) is fixed on the electronic interface housing (300), a free end of the at least one pressing member (44a, 44b) extending in a first transverse plane (451) and a free end (4501) of the at least one pressing element (45) extending in a second transverse plane (452), the at least one pressing member (44a, 44b) and the at least one pressing element (45) being arranged so that they project, in a direction perpendicular to a reference plane (400) of the cover (4), from an inner face of the cover (4) intended to face toward the inside of the electronic interface housing (300), characterized in that the first transverse plane (451) and the second transverse plane (452)

Abstract: The invention relates to a heating device (1) for an air-conditioning housing, said heating device (1) comprising a heating body (2) supplied with current for heating an air flow passing through said heating body (2), said heating body (2) comprising heating elements through which said current passes and which are arranged in electrically insulated tubes (4) of the heating elements, said heating elements being controlled via a distribution unit (3), said heating device (1) comprising means for earthing a plurality of metal elements distributed in the heating body (2) and the distribution unit (3). Said heating device (1) is characterised in that said earthing means consist of a single earthing circuit which passes through the heating body (2) and the distribution unit (3) and is formed by arranging said metal elements in series with direct contact between said metal elements.

Abstract: The invention concerns a heat management method for an electric heating device comprising at least one subassembly of resistive elements configured to be electrically supplied and a support for a circuit supplying power to the resistive elements, wherein the power supply of the resistive elements is controlled according to a power setpoint (P_(sub)system_target_0) or temperature (T_(sub)system_target_0) or electrical current amplitude (i_(sub)system_target_0) or resistance (R_(sub)system_target_0), or even a duty ratio of the control signal (PWM_(sub)system_target_0).

Abstract: The invention relates to a method for managing heat in the event of detecting overheating of an electrical heating device, in particular for a motor vehicle, comprising a plurality of resistive elements configured to be supplied with electric power using a control signal by pulse width modulation according to a setpoint. According to the invention, the method comprises the following steps: activating a first phase (P1) of gradual adjustment of the setpoint in a first direction of progression, and repeating the first phase (P1) of adjustment until the recorded duty cycle of the control signal by pulse width modulation (PWM_(sub)system) exceeds a determined detection threshold value (PWM_(sub)system_lim_i), and if not, —activating a second phase (P2) of adjustment of the setpoint in a second direction of progression opposite the direction of progression in the first adjustment phase (P1). The invention also relates to a control unit for implementing such a method.

Abstract: The invention relates to an electronic interface housing (6) of an electrical heating device (1) for heating an airflow passing through, the electronic interface housing (6) being configured to house electronic components for controlling at least one heating element (4) fitted to the electrical heating device (1), including at least one printed circuit board (44), the electronic interface housing (6) comprising at least one rib (56, 58) in contact with the printed circuit board (44) in a contact zone (54), characterized in that the printed circuit board (44) comprises at least one water drainage opening (82) in the contact zone (54).

Abstract: The present invention relates to a method for detecting overheating of an electrical heating device comprising a plurality of resistive elements configured to be supplied electrically using a control signal by pulse width modulation according to a setpoint, comprising the following steps:—detecting the setpoint,—detecting the duty cycle (PWM_system; PWM_subsystem),—defining a threshold value for detecting the duty cycle according to the setpoint, or a value of at least one parameter for monitoring an incidence of overheating—comparing the detected duty cycle value with the detection threshold value, and—detecting an incidence of overheating when the detected duty cycle value reaches the detection threshold value. The invention also relates to a corresponding control unit.

Abstract: The invention relates to a heating radiator (1) comprising a power supply module (2) and a heating body (3), said power supply module (2) comprising a printed circuit board (20), a plurality of electronic switches (21) and one or more connectors (22) for connecting to an external circuit, said printed circuit board (20) comprising a first zone (200) providing an electrical connection with the heating body (3), a second zone (210) providing an electrical connection with the electronic switches (21) and a third zone (220) providing an electrical connection with the one or more connectors (22), said first, second and third zones being located side-by-side in this order in a direction that is transverse to a plane in which the heating body (2) extends.

Abstract: The invention relates to a heating device (1) for an air-conditioning housing, said heating device (1) comprising a heating body (2) supplied with current for heating an air flow passing through said heating body (2), said heating body (2) comprising heating elements through which said current passes and which are arranged in electrically insulated tubes (4) of the heating elements, said heating elements being controlled via a distribution unit (3), said heating device (1) comprising means for earthing a plurality of metal elements distributed in the heating body (2) and the distribution unit (3). Said heating device (1) is characterised in that said earthing means consist of a single earthing circuit which passes through the heating body (2) and the distribution unit (3) and is formed by arranging said metal elements in series with direct contact between said metal elements.

Abstract: A heating device 1 for an air-conditioning unit, said heating device 1 comprising a heating body 2 supplied with current in order to heat an airflow passing through said heating body 2, the heating body 2 comprising heating elements that are flowed through by said current and located in tubes 4 that are electrically insulated from the heating elements, said heating elements being controlled via a distribution unit 3, the heating device 1 comprising means for grounding a plurality of metal elements that are distributed in the heating body 2 and the distribution unit 3. This device is characterized in that said grounding means consist of a grounding circuit passing through the heating body 2 and the distribution unit 3, at least one part of said grounding circuit being integrated into a protective housing 8 of the distribution unit 3.

Abstract: Heating device 1 for an air conditioning unit, the said heating device 1 comprising a heating body 2 powered with current via a distribution unit 3 to heat a flow of air passing through the said heating body 2, the heating body 2 comprising an alignment of tubes 4 in which there are: —heating elements 8 through which the said current passes; —electrodes 9 situated on each side of the heating elements 8 in order to supply them with electrical current. This heating device 1 is characterised in that the distribution units 3 comprises an electrode housing station 6 housing the electrodes 9, the said housing station 6 having a plurality of housings 17 to house the electrodes 9 and in which there are means for mechanically and electrically connecting the electrodes 9 to the distribution unit 3.

Abstract: The invention relates to an added electrical heater (1), especially for a heating system or air conditioner of a motor vehicle. A plurality of heating elements (2) are provided which are formed by PTC elements while being fitted with at least one electrically conducting coating (3).

Abstract: The invention relates to a device for heating an air flow, in particular for a motor vehicle, comprising a frame which extends substantially in a plane, at least one heating section, which is held on the frame and which can be traversed by a first, heatable partial air flow, with an electrical heating element, in particular PTC element, and with at least one flow resistance element which is arranged in the plane adjacent to the heating section and which is held on the frame and which can be traversed by a second, non-heatable partial air flow, wherein a flow means is provided on the device, by means of which flow means the two partial air flows are mixed downstream of the device.

Abstract: The invention relates to a heating system (1), especially for a motor vehicle, comprising at least one PTC element and a housing (7) which contains the PTC element and through which the air to be heated flows. The invention heating system also comprising a heating control device (3) which is at least partially arranged in the housing (7) and comprises at least one cooling body (6) arranged in the air stream of the air to be heated. A blower control device (5) is arranged in the housing (7), next to the heating control deice (3).

Abstract: The invention relates to an added electrical heater (1), especially for a heating system or air conditioner of a motor vehicle. A plurality of heating elements (2) are provided which are formed by PTC elements while being fitted with at least one electrically conducting coating (3).