Abstract: A sealing sleeve for a stator of an electrical machine is disclosed. The sealing sleeve is configured to provide that a coolant flowing around the stator coils follows a predefined, serpentine coolant path. The sleeve has two sealing rings arranged on the stator with the coils of the stator lying between them. Each sealing ring includes a hard component and a soft component. The sleeve is arranged on the stator such that sealing sections of the soft component bear against the surfaces of the stator coils and adapt to the coil surfaces. As such, no coolant may pass between the coils and the sealing rings at these sealing locations thus formed, and therefore the desired coolant flow is guaranteed. Furthermore, the sealing rings are configured such that alternately for each coil only one of the sealing rings has a sealing section so that ultimately the serpentine coolant flow is achieved.

Abstract: A supply device supplies electrical power to an electrical assembly at a high-voltage potential. The supply device has a series circuit composed of at least one series resistor and a supply unit. The series circuit can be connected to an energy store and the supply unit can be connected to the assembly that is to be supplied with power. The supply device further has a fuse element, by which a short-circuit current through the supply unit can be electrically interrupted in the event of a short circuit.

Abstract: An electrical module contains at least one electrical component which is accommodated in a module housing. The module housing has at least two housing parts which lie one on the other and, on their own or together with one or more further housing parts of the module housing, delimit the interior of the module housing. There is at least one adhesive layer between the two housing parts, the adhesive layer adhesively bonding the two housing parts to one another.

Abstract: An electrical module contains at least one electrical component which is accommodated in a module housing. The module housing has at least two housing parts which lie one on the other and, on their own or together with one or more further housing parts of the module housing, delimit the interior of the module housing. There is at least one adhesive layer between the two housing parts, the adhesive layer adhesively bonding the two housing parts to one another.

Abstract: A power semiconductor module includes at least two power semiconductor units that are interconnected and that have controllable semiconductors. Each semiconductor unit is associated with a cooling plate to which the semiconductors are connected in a heat-conducting manner. The object is to provide a semiconductor module that is compact and cost-effective and at the same time explosion-proof. The power semiconductor module of the invention has a module housing which houses the power semiconductor units. The cooling plates form at least part of the module housing.

Abstract: The vacuum switch is compact, requires little effort, and provides a reliable current path having a high current-carrying capacity between the terminals of the vacuum switch, particularly at high switch-on speeds. The vacuum switch has a vacuum chamber, in which a vacuum is present and in which a switching contact is arranged. The switching contact includes a fixed contact piece firmly connected to the vacuum chamber and in electrical contact with a fixed contact terminal, and a moving contact piece movably guided relative to the fixed contact piece. The moving contact piece is at a distance to the fixed contact piece in a disconnect position and contacts the latter in a contact position. A drive unit produces a drive movement. A switching mechanism is connected to the drive unit and the moving contact piece and includes a conductor section that is electrically conducting up to the moving contact piece.

Abstract: A device for grounding electrical components arranged in a chain has a grounding point at ground potential and an actuation device connected to the grounding point for connecting the electrical components to the grounding point. In order to provide such a device, with which a simple, safe, and durable grounding is obtained, the actuation device is constructed as a moving part extending in a longitudinal direction and movable in a longitudinal direction. The moving part has an electrically conducting grounding section connected to the grounding point and an electrically nonconducting insulating section arranged on the end of the moving part facing away from the grounding point.

Abstract: The vacuum switch is compact, requires little effort, and provides a reliable current path having a high current-carrying capacity between the terminals of the vacuum switch, particularly at high switch-on speeds. The vacuum switch has a vacuum chamber, in which a vacuum is present and in which a switching contact is arranged. The switching contact includes a fixed contact piece firmly connected to the vacuum chamber and in electrical contact with a fixed contact terminal, and a moving contact piece movably guided relative to the fixed contact piece. The moving contact piece is at a distance to the fixed contact piece in a disconnect position and contacts the latter in a contact position. A drive unit produces a drive movement. A switching mechanism is connected to the drive unit and the moving contact piece and includes a conductor section that is electrically conducting up to the moving contact piece.

Abstract: A short-circuit device for the electrical bypass of an electric module has a contact arrangement, which is disposed in a switching chamber. The contact arrangement has an open circuit-breaker setting, in which a current flow via the contact arrangement is interrupted, and a contact setting, in which a current flow via the contact arrangement is made possible. A pyrotechnic drive for transferring the contact arrangement from its circuit breaker setting into its contact setting, enables cost-effective, rapid bypass or short-circuiting, and the provision of a large current carrying capacity simultaneously. The switching chamber is a vacuum switching chamber in which a vacuum prevails.

Abstract: A power semiconductor module includes at least two power semiconductor units that are interconnected and that have controllable semiconductors. Each semiconductor unit is associated with a cooling plate to which the semiconductors are connected in a heat-conducting manner. The object is to provide a semiconductor module that is compact and cost-effective and at the same time explosion-proof. The power semiconductor module of the invention has a module housing which houses the power semiconductor units. The cooling plates form at least part of the module housing.

Abstract: A device for grounding electrical components arranged in a chain has a grounding point at ground potential and an actuation device connected to the grounding point for connecting the electrical components to the grounding point. In order to provide such a device, with which a simple, safe, and durable grounding is obtained, the actuation device is constructed as a moving part extending in a longitudinal direction and movable in a longitudinal direction. The moving part has an electrically conducting grounding section connected to the grounding point and an electrically nonconducting insulating section arranged on the end of the moving part facing away from the grounding point.

Abstract: A test stand for motor vehicles, having a tipping device. The tipping device has a lower frame unit (13) and an upper frame unit (6) that can be tipped relative to the lower frame unit. The tipping device is further provided with four lifting units (17) disposed in the corner zones (7, 8, 9, 10) of the frame units.

Abstract: A test stand for motor vehicles, having a tipping device. The tipping device has a lower frame unit (13) and an upper frame unit (6) that can be tipped relative to the lower frame unit. The tipping device is further provided with four lifting units (17) disposed in the corner zones (7, 8, 9, 10) of the frame units.