Abstract: A air vent with a housing has at least one opening for supplying an airflow and an opening for discharging the supplied airflow. The airflow can be supplied to the air vent from an air supply shaft or from an air supply line in a heating, ventilating, or air-conditioning systems for a motor vehicle. The housing of the air vent is adapted to be inserted into a wall opening or can be assembled behind such a wall opening and secured there via one of the at least two parts of the housing. In the non-use state of the air vent, one part of the housing lies in or over the other part of the housing.

Abstract: Disclosed is a method for producing a plate-shaped heat exchanger for batteries or converters for generating electricity, to a plate-shaped heat exchanger for batteries or converters for generating electricity, and to an assembly of plate-shaped heat exchangers and converter or battery cells. A plate-shaped heat exchanger includes two frame parts, which peripherally surround one profiled heat-conducting element each, wherein the profiles of the profiled heat-conducting elements form channels in the connected state of the frame parts, through which channels a fluid can be conducted. In the connected state, the frame parts form at least two supply channels for feeding and leading away of fluid, from which supply channels openings extend to the channels of the profiled heat-conducting elements. The frame parts have at least one connection for the feeding and leading away of fluid for each supply channel, which connection can be connected to a connection of a frame part of a further heat exchanger.

Abstract: A air vent with a housing has at least one opening for supplying an airflow and an opening for discharging the supplied airflow. The airflow can be supplied to the air vent from an air supply shaft or from an air supply line in a heating, ventilating, or air-conditioning systems for a motor vehicle. The housing of the air vent is adapted to be inserted into a wall opening or can be assembled behind such a wall opening and secured there via one of the at least two parts of the housing. In the non-use state of the air vent, one part of the housing lies in or over the other part of the housing.

Abstract: Disclosed is a method for producing a plate-shaped heat exchanger for batteries or converters for generating electricity, to a plate-shaped heat exchanger for batteries or converters for generating electricity, and to an assembly of plate-shaped heat exchangers and converter or battery cells. A plate-shaped heat exchanger includes two frame parts, which peripherally surround one profiled heat-conducting element each, wherein the profiles of the profiled heat-conducting elements form channels in the connected state of the frame parts, through which channels a fluid can be conducted. In the connected state, the frame parts form at least two supply channels for feeding and leading away of fluid, from which supply channels openings extend to the channels of the profiled heat-conducting elements. The frame parts have at least one connection for the feeding and leading away of fluid for each supply channel, which connection can be connected to a connection of a frame part of a further heat exchanger.