Abstract: The invention relates to a rotor hub assembly for an electric fan, in particular for a radiator fan of a motor vehicle, comprising a hub cup, which rotates during operation and which has air outlet guides on the inside of the hub cup, which air outlet guides are arranged and shaped in such a way that the air outlet guides guide and accelerate cooling air, wherein a magnetic return cup is arranged inside the hub cup, which return cup has air passage openings, which, together with the air outlet guides, form continuous air outlets for a cooling air flow from the pressure side to the vacuum side of the fan. The invention further relates to an electric fan having such a rotor assembly.

Abstract: The invention relates to a rotor hub assembly for an electric fan, in particular for a radiator fan of a motor vehicle, comprising a hub cup, which rotates during operation and which has air outlet guides on the inside of the hub cup, which air outlet guides are arranged and shaped in such a way that the air outlet guides guide and accelerate cooling air, wherein a magnetic return cup is arranged inside the hub cup, which return cup has air passage openings, which, together with the air outlet guides, form continuous air outlets for a cooling air flow from the pressure side to the vacuum side of the fan. The invention further relates to an electric fan having such a rotor assembly.

Abstract: An electrical assembly connection, in particular a motor connection for an electrical radiator fan motor, for a motor vehicle, has a connected cable harness. The cable ends of the cable harness are connected to an assembly-end connection terminal. Two housing parts of a connection housing are combined so as to form a hollow space in the assembled state and accommodate the connection-end cable ends of the cable harness. Wherein one of the housing parts contains at least one cable bushing which has a conical guide inner contour which opens in the direction of the connection terminal. A clamping part rests against the guide inner contour, and wherein, as a result of tensile loading on the cable harness, the clamping part slides along the corresponding guide inner contour and increases the clamping action on the corresponding cable as the tensile loading increases.

Abstract: An electrical motor connection, in particular of an electrical cooling fan motor for a motor vehicle, has a connected cable harness whose cable ends are connected to a motor-end connecting terminal. A connecting housing has two housing parts, which are joined together in the assembled state to form a cavity, and which hold connection-end cable ends of the cable harness. One of the housing parts has at least one filling opening, which opens into the cavity, for filling with a curable encapsulation compound, and with the cured encapsulation compound surrounding the cable ends in the area of the connecting terminal, and being joined to the housing parts.

Abstract: An axial-flow fan for a vehicle radiator includes a fan wheel that delivers the main air flow and is driven by a hub motor coupled to the fan wheel. The vehicle radiator is on the intake side of the fan wheel, the hub motor during operation is cooled by a secondary air flow, and the cooling air flow of the hub motor flowing out from an air outlet opening is on the intake side in the hub area of the fan wheel. An air baffle device including a propeller is assigned to the hub motor and the cooling air flow passing through the air baffle device is led out of the air outlet opening, avoiding disturbances of the main air flow delivered by the fan wheel.

Abstract: The invention relates to an axial-flow fan for a vehicle radiator, the fan wheel of which delivering the main air flow is driven by a hub motor centrally rotationally coupled to said fan wheel, the vehicle radiator being arranged on the intake side of the fan wheel, the hub motor during operation being cooled by a secondary air flow, and the cooling air flow of the hub motor flowing out from an air outlet opening situated on the intake side in the hub area of the fan wheel. In order that an air flow sufficient for cooling the hub motor can be provided whilst avoiding a significant reduction in the fan efficiency, an air baffle device allowing the greater part of its cooling air flow to pass is assigned to the hub motor and the cooling air flow passing through the air baffle device is led out of the air outlet opening, avoiding disturbances of the main air flow delivered by the fan wheel.

Abstract: Disclosed is a resistor component (16, 36) for an electric machine having at least one resistor component (1, 21) and insulation material (3, 5, 23, 25). The resistor component (1, 21) is surrounded by the insulation material (3, 5, 23, 25) and the resistor component (16, 36) is may be configured as a hollow cylinder or a hollow cylinder segment, whose radius of curvature essentially corresponds to the radius of curvature of an outer housing of the electric machine. Also, the resistor component (16, 36) may include a fixing element (12, 32).