Abstract: A printed circuit board connecting device (1) for connecting printed circuit boards (3, 5) includes a non-conductive plate (21) having a top side and a bottom side, and a plurality of interface connections (23) which are arranged in the plate (21) so as to be spaced apart from one another. Each interface connection (23) has grouped-together conductors (41) which extend through the plate (21) and which are laterally enclosed by the plate material and the end regions of which protruding on the top side and lower side from the plate (21) can be fixed to interfaces (13) of two printed circuit boards (3, 5) to be connected. Therefore, the conductors (41) form both a mechanical and an electrical connection between the interfaces (13) of the printed circuit boards (3, 5).

Abstract: A fluid pump for conveying a fluid may include an internal rotor rotatable about an axis of rotation relative to an external stator and an impeller connected to the internal rotor in a rotationally fixed manner configured to convey a fluid. The internal rotor may include a rotor receiving sleeve having a base body. The base body may include a receiving chamber configured to receive an anchor unit. The internal rotor may further include a bearing bushing penetrating the rotor receiving sleeve coaxially to the axis of rotation. The bearing bushing may be configured to receive a rotor shaft. The impeller may be directly connected to the rotor receiving sleeve in a rotationally fixed manner.

Abstract: A liquid pump for conveying a liquid may include a housing, in which a pump impeller is arranged for conveying the liquid, and a cover for covering the housing. The cover may include a main connector for supplying a main flow of the liquid to the pump impeller and an auxiliary connector for supplying an auxiliary flow of the liquid to the pump impeller. The housing may have an inlet opening for the liquid and an annular collar protruding from an edge of the inlet opening. The cover may lie axially against the annular collar. The annular collar and the cover may define an annular wall surrounding a flow path of the main flow of the liquid. The annular wall may have at least one radial opening connecting the flow path with an inflow space surrounding the annular wall. The auxiliary connector may be fluidically connected with the inflow space.

Abstract: An electrical load, for example and electrical component and/or an electronic component, of a motor vehicle may include a first electrical system part and a second electrical system part for supplying the electrical load with electrical energy from a first vehicle electrical system and a second vehicle electrical system, respectively. The first vehicle electrical system part may be electrically coupled to a diode element for transferring an activation signal to an electrical energy supply unit provided in the second electrical system part. The electrical energy supply unit may be switched between an active state where a supply voltage is provided to the electrical load and an idle state where the supply voltage to the electrical load is suspended.

Abstract: A liquid pump for conveying a liquid may include a housing, in which a pump impeller is arranged for conveying the liquid, and a cover for covering the housing. The cover may include a main connector for supplying a main flow of the liquid to the pump impeller and an auxiliary connector for supplying an auxiliary flow of the liquid to the pump impeller. The housing may have an inlet opening for the liquid and an annular collar protruding from an edge of the inlet opening. The cover may lie axially against the annular collar. The annular collar and the cover may define an annular wall surrounding a flow path of the main flow of the liquid. The annular wall may have at least one radial opening connecting the flow path with an inflow space surrounding the annular wall. The auxiliary connector may be fluidically connected with the inflow space.

Abstract: A fluid pump for conveying a fluid may include an internal rotor rotatable about an axis of rotation relative to an external stator and an impeller connected to the internal rotor in a rotationally fixed manner configured to convey a fluid. The internal rotor may include a rotor receiving sleeve having a base body. The base body may include a receiving chamber configured to receive an anchor unit. The internal rotor may further include a bearing bushing penetrating the rotor receiving sleeve coaxially to the axis of rotation. The bearing bushing may be configured to receive a rotor shaft. The impeller may be directly connected to the rotor receiving sleeve in a rotationally fixed manner.

Abstract: An electrical load, for example and electrical component and/or an electronic component, of a motor vehicle may include a first electrical system part and a second electrical system part for supplying the electrical load with electrical energy from a first vehicle electrical system and a second vehicle electrical system, respectively. The first vehicle electrical system part may be electrically coupled to a diode element for transferring an activation signal to an electrical energy supply unit provided in the second electrical system part. The electrical energy supply unit may be switched between an active state where a supply voltage is provided to the electrical load and an idle state where the supply voltage to the electrical load is suspended.

Abstract: An electric motor may have a rotor and a stator. An external part and an internal part may be arranged concentrically to a rotation axis and may be adjustable rotationally relative to each other about the rotation axis. The electric motor may be one of an external rotor motor and an internal rotor motor. The external part may have at least two permanent magnets. The internal part may have at least two pole arms and at least one electric coil. The rotor may be formed symmetrically and the stator may be formed asymmetrically.

Abstract: An electrical system assembly for a motor vehicle may include a first electrical system and a second electrical system galvanically isolated from the first electrical system. The second electrical system may be switchable between an idle state and an active state. A capacitive coupling element may couple the first electrical system to the second electrical system. A signal transmission unit may be arranged in the first electrical system and may be configured to transmit an activation signal to the capacitive coupling element for activating the second electrical system. A signal receiving unit may be arranged in the second electrical system and be configured to receive the activation signal via the capacitive coupling element and switch the second electrical system from the idle state to the active state.

Abstract: A heat transfer device for a motor vehicle may include a pump and a heat exchanger. The heat exchanger may have a first inlet and a first outlet for a refrigerant, and a second inlet and a second outlet for a coolant. The pump and the heat exchanger may be mounted to each other forming a common assembly.

Abstract: An electric fluid pump may include a wet section having a pump wheel and a permanently excited rotor of an electric motor arranged therein. The electric fluid pump may include a dry section having a stator of the electric motor arranged therein. A containment shell may be included configured to separate the wet section from the dry section. The dry section may include control electronics for controlling the fluid pump. The control electronics may connect in a heat-transferring manner to the containment shell and the wet section via the containment shell.

Abstract: An electrical system assembly for a motor vehicle may include a first electrical system and a second electrical system galvanically isolated from the first electrical system. The second electrical system may be switchable between an idle state and an active state. A capacitive coupling element may couple the first electrical system to the second electrical system. A signal transmission unit may be arranged in the first electrical system and may be configured to transmit an activation signal to the capacitive coupling element for activating the second electrical system. A signal receiving unit may be arranged in the second electrical system and be configured to receive the activation signal via the capacitive coupling element and switch the second electrical system from the idle state to the active state.

Abstract: An electric motor may have a rotor and a stator. An external part and an internal part may be arranged concentrically to a rotation axis and may be adjustable rotationally relative to each other about the rotation axis. The electric motor may be one of an external rotor motor and an internal rotor motor. The external part may have at least two permanent magnets. The internal part may have at least two pole arms and at least one electric coil. The rotor may be formed symmetrically and the stator may be formed asymmetrically.

Abstract: A heat transfer device for a motor vehicle may include a pump and a heat exchanger. The heat exchanger may have a first inlet and a first outlet for a refrigerant, and a second inlet and a second outlet for a coolant. The pump and the heat exchanger may be mounted to each other forming a common assembly.

Abstract: An electric fluid pump may include a wet section having a pump wheel and a permanently excited rotor of an electric motor arranged therein. The electric fluid pump may include a dry section having a stator of the electric motor arranged therein. A containment shell may be included configured to separate the wet section from the dry section. The dry section may include control electronics for controlling the fluid pump. The control electronics may connect in a heat-transferring manner to the containment shell and the wet section via the containment shell.