Abstract: A terminal (3a . . . 3h) for the electrical connection of a plurality of electrochemical cells (2) of a accumulator, which terminal comprises a U-shaped outer rail (4a . . . 4f) and an actuating element (5a . . . 5g), is described. According to the invention, the actuating element (5a . . . 5g) is coupled to a clamping element (6a . . . 6f . . . 6h) in such a way that the clamping element (6a . . . 6f . . . 6h) is pressed against at least one limb (4a? . . . 4f?) of the outer rail (4a . . . 4f) on actuation of the actuating element (5a . . . 5g).

Abstract: A permanent magnet excited synchronous machine (1) with embedded magnets, which is particularly suitable for range extender generator. It includes stator (2) and rotor (3) being provided with exciter magnets (7). The rotor (3) has at least two rotor poles (4), each is provided with one exciter magnet (7). In order to increase the magnetic torque limit of the synchronous machine (1)—in each rotor pole (4) at least one, preferably several selective magnetic flux barriers, preferably as substantially radial slots (8) being parallel with the main pole flux is/are provided in the area of the pole shoe.

Abstract: Stators (1) for electrical machines, in particular a rotating field machine, such as a motor or generator, in particular for an electric vehicle, wherein a stator (1) has slots separated by stator teeth, into which shaped bars (3, 4), formed from a plurality of individual wires (10), are deployed, characterised in that in each case the two sidewalls of a stator tooth bounding adjacent slots in the region of the shaped bars (3, 4) run essentially parallel to one another.

Abstract: A separately excited synchronous machine (1b1k) with an excitation circuit on the side of the rotor includes an excitation winding (3) and a power supply for the excitation winding (3) as well as a switching element (8a, 8e) for connecting the power supply to the excitation winding (3). Further, the synchronous machine (1b1k) comprises a first stator-side primary winding (5a5f) and a first rotor-side secondary winding (6a6f). Moreover, the synchronous machine (1b1k) may comprise a) a tap of the first rotor-side secondary winding (6d) connected to a control element (9a, 9e) of the switching element (8a, 8e) or b) a second rotor-side secondary winding (14d), which is coupled to the first stator-side primary winding (5a5f) and connected to a control element (9a, 9e) of the switching element (8a, 8e).

Abstract: A controller (2) and a method for a DC converter (1), wherein the DC converter (1) comprises an input (E), an output (A), a connection to ground (GND), and also at least two half-bridges with two switching elements each (TR1 . . . TR4) connected in series and an inductance (L1, L2) each connected with the point connecting the two switching elements. In accordance with the invention the controller (2) is equipped to measure the current (IL1, IL2) through the inductances (L1, L2), and controls the switching elements (TR2, TR4)/(TR1, TR2) positions on the ground side/input side always with negative/positive current through the inductance (L1, L2) into an off-state. Finally a DC converter (1) connected with the controller (2) is also specified.

Abstract: A circuit arrangement (1) for power distribution in a motor vehicle is described, which comprises a transformer (T1, T1a . . . T1n) having at least three transformer windings (W1, W1a . . . W1n, W2, W2a . . . W2n, W3, W3a . . . W3n). A first and second on-board supply inside the vehicle and a power supply which is outside the vehicle can be connected to the circuit arrangement (1), which supplies are coupled via the transformer windings (W1, W1a . . . W1n, W2, W2a . . . W2n, W3, W3a . . . W3n) and converters (UR1, UR2, UR2a . . . UR2n, UR3, UR3a . . . UR3n). The third converter (UR3, UR3a . . . UR3n) can be connected via a first change-over switch (US1, US1?) alternatively to the first on-board supply inside the vehicle or to the power supply outside the vehicle. A plurality of first converters (UR 1) and/or a plurality of second converters (UR2, UR2a . . . UR2n) and/or a plurality of third converters (UR3, UR3a . . . UR3n) each being connected to the transformer windings (W1, W1a . . . W1n, W2, W2a . . .

Abstract: A control device for a separately excited rotor winding (LR) of a synchronous machine is described, which comprises a voltage source (2) connected to the rotor winding (LR) and intended for transmitting electrical energy (E) from a power supply (4) to the rotor winding (LR), in such a way that said rotor winding is caused to rotate by a rotating field on the stator side. According to the invention, the control device furthermore comprises a consumer (3) connected to the rotor winding (LR) and intended for transmitting electrical energy (E) from the rotor winding (LR) to the power supply (4). Furthermore, a method for controlling a separately excited rotor winding (LR) of a synchronous machine is described.

Abstract: An inductive component (1a . . . 1e) with at least two coils (2 . . . 4b) in a closed main magnetic circuit (5a . . . 5j) for guiding a magnetic main flux (?H) penetrating all coils (2 . . . 4b) is specified. The inductive component furthermore comprises a leakage field guide component (6a . . . 8c) or a plurality of leakage field guide components (6a . . . 8c), wherein a leakage field guide component (6a . . . 8c) is arranged between two coils (2 . . . 4b) in each case, separated by two air gaps (E . . . J) from the main magnetic circuit and intended for guiding a magnetic leakage flux ?S different from the main flux ?H. The main magnetic circuit (5a . . . 5j) and/or the leakage field guide components (6a . . . 8c) consist of a magnetically isotropic material. Furthermore, the invention relates to a use of a choke (1a . . . 1e) with leakage field guide component (6a . . . 8c) for guiding a leakage flux (?S) arising in the choke (1a . . . 1e) as a PFC (Power Factor Correction) choke.

Abstract: A voltage converter (1a . . . 1g), in particular a resonant converter for converting an input AC or DC voltage (UE) into an output DC voltage (UA). On the secondary side, a first secondary capacitor (CS1) is arranged between the secondary partial windings (WS1, WS2) of a transformer (TR1); furthermore, a first secondary full-bridge rectifier (GS1) provides the output direct voltage (UA), the inputs of which are connected to a secondary partial winding (WS1, WS2) each of the transformer (TR1), resulting, at the input of the first secondary full-bridge rectifier (GS1), in a series connection including the secondary partial windings (WS1, WS2) and the first secondary capacitor (CS1). Finally, the voltage converter (1a . . .

Abstract: The invention relates to systems, devices, and components for inductively charging an electric energy store of an electric vehicle (1) via a charging section (2). The device includes a registration device (20) for localizing the electric vehicle (1) on the charging section (2), an electrical energy source (3) preferably embodied as a high-frequency-energy source, a system of primary conductor loops each with at least one primary winding provided in the charging section (2) for supplying AC current via the electrical energy source (3), a secondary conductor loop arranged on the electric vehicle (1) having at least one secondary winding at least partially permeated by the induction flux, an energy supply line (4),and switching devices (5) for connecting the energy supply line (4) and the system of the primary conductor loops to the electrical energy source (3). All primary conductor loops of the charging section (2), and the secondary conductor loop may be implemented as double dipole loops (6,7,8).

Abstract: The invention relates to an electrical fuse (1) having a fuse housing (2) and at least two electrical contacts (3) accessible from outside of the fuse housing (2), which are 5 connected to each other inside the fuse housing (2) via a fusible conductor (4). To provide better thermal dissipation of the heat that is generated, a wall of the fuse housing (2) externally forms a fixing surface (12) for attaching the fuse (1).

Abstract: A Converter (1a.1c) for single-phase and three-phase Operation which comprises a three-phase rectifier to which three coils (La, Lb, Lc) are connected on the mains side is described. A first coil (La) is provided on the mains side with a switch (S) which connects the first coil (La) to the mains during three-phase Operation and connects it via a capacitor (C) either to the lower end (FP) of the rectifier or on the mains side to another coil (Lb, Lc) during single-phase Operation. In addition, a d.c. voltage supply and a battery charger (5a.5c) which comprise the Converter (1a.1c) according to the invention are described.

Abstract: A separately excited synchronous machine (1blk) with an excitation circuit on the side of the rotor includes an excitation winding (3) and a power supply for the excitation winding (3) as well as a switching element (8a, 8e) for connecting the power supply to the excitation winding (3). Further, the synchronous machine (1blk) comprises a first stator-side primary winding (5a5f) and a first rotor-side secondary winding (6a6f). Moreover, the synchronous machine (1blk) may comprise a) a tap of the first rotor-side secondary winding (6d) connected to a control element (9a, 9c) of the switching element (8a, 8e) or b) a second rotor-side secondary winding (14d), which is coupled to the first stator-side primary winding (5a5f) and connected to a control element (9a, 9e) of the switching element (8a, 8e).

Abstract: Laminated rotor (21) assemblies for rotating electric machines such as hybrid synchronous motors (HSM) of vehicle drives, the rotor plates (26) of which have one or several recesses (29) as a flux barrier or magnet pocket, which comprise radially innermost and outermost edge sections as rounded transition regions from and to edge sections lying therebetween. Each of the rounded transition regions may be shaped at least approximately respectively according to a part of a curve (35) of second order. Between adjacent recesses (29), a respective oblique cross-piece (52) is provided, the center line (54) of which lies obliquely to the pole axis (30).

Abstract: An energy supply unit (15) for an electric motor vehicle (1b) comprises a first interface (10) on the alternating voltage side to a vehicle-external power network, a second interface (16) on the direct voltage side for the connection to an onboard power system of the electric motor vehicle (2b), and an AC/DC converter (17) arranged in a current path between the first interface (10) and the second interface (16). Additionally, the energy supply unit (15) comprises a third interface (18) on the alternating N voltage side, for the connection to an alternating voltage generator (12) and a switching device (19) to connect the second interface (16) to the first interface (10) or the third interface (18) via the AC/DC converter (17). The AC/DC converter (17) may be connected to said vehicle-external power network or to said alternating voltage generator (12), which is driven by a combustion engine (11). In addition, an electric motor vehicle (1b) having such an energy supply unit (15) is set forth.

Abstract: A method for monitoring a rechargeable battery (1) with multiple cells (2, 2a . . . 2n) is described, as well as a cell monitoring unit (3, 3a . . . 3n) for such, in which in a normal mode (MN) a measurement (UCa, UCb) of a parameter of a cell (2, 2a . . . 2n) is determined using a reference value (URa, URb) provided for each cell (2, 2a . . . 2n). In addition, in a test mode (MT) the reference values (URa, URb) of adjacent cells (URb) used for determining measurements (UCa, UCb) of the parameter in question and provided for each cell (2, 2a . . . 2n) are compared with each other in a periodically recurring manner. An error signal is issued if the comparison result exceeds a predefinable limit value.

Abstract: A battery (1a . . . 1e) having a housing (2) and a plurality of galvanic cells (3) arranged in the housing (2) is provided. In addition, a fan (5a . . . 5c) is arranged in the housing (2) to create a fluid flow circulating inside the housing (2). According to the invention, a heat exchanger (6a . . . 6e) having a forward flow (7) and a return flow (8) for a heat transfer medium, which lead out of the housing (2) is arranged in the flow path (A) of the fluid flow.

Abstract: A voltage converter (1a . . . 1g), in particular a resonant converter for converting an input AC or DC voltage (UE) into an output DC voltage (UA). On the secondary side, a first secondary capacitor (CS1) is arranged between the secondary partial windings (WS1, WS2) of a transformer (TR1); furthermore, a first secondary full-bridge rectifier (GS1) provides the output direct voltage (UA), the inputs of which are connected to a secondary partial winding (WS1, WS2) each of the transformer (TR1), resulting, at the input of the first secondary full-bridge rectifier (GS1), in a series connection including the secondary partial windings (WS1, WS2) and the first secondary capacitor (CS1). Finally, the voltage converter (1a . . .

Abstract: A method for monitoring a charge accumulator (1) with several cells (2, 2a . . . 2n), wherein a parameter of a cell (2, 2a . . . 2n) is measured and transmitted to a central monitoring unit (4) by means of a pulse-width modulated signal. The pulse-width modulated signals emanating from the individual cells (2, 2a . . . 2n) are synchronously transmitted and summed. Furthermore, a cell monitoring unit (3, 3a . . . 3n) according to the invention, a central monitoring unit (4) according to the invention and an accumulator (1) according to the invention are set forth for implementing the method.

Abstract: Electrical machine rotors (R) suited for synchronous motors of electric vehicle drives. A rotor (R) includes a rotor shaft (8), a sheet stack (3), windings, and a restraining system (2) with support elements. The support elements of the restraining system include support rings (7) to protect winding heads (4) projecting from the sheet stack (3) in the axial direction against radial stresses. The elements of the restraining system (2) protecting the winding heads (4) from stresses also include axially inner end caps (6) configured as supports for the finished winding heads (4) in the operating state, and as guides and supports during the winding of the pole windings of the rotor (R) about the axial edge of the sheet stack (3). The axially outer support rings (7) cooperate with the axially inner end caps (6) so that the support rings (7) may absorb centrifugal forces acting on winding heads (4) end caps (6).