Abstract: Some embodiments include a kit for increasing endurance of a battery-powered unmanned aerial vehicle (UAV) by incorporating flexible solar cells or applying flexible solar cells on a surface of a UAV or on a surface of a component of a UAV. The kit further include a power conditioning system configured to operate the solar cells within a desired power range and configured to provide power having a voltage compatible with an electrical system of the UAV.

Abstract: Methods and systems for preserving the life of a transport refrigeration system power source are provided. The method can include determining whether a control unit of the transport refrigeration system is off. Also, the method can include measuring an input voltage of a network coordinator when the control unit is off. Further the method can include instructing one or more parasitic electronic devices of the transport refrigeration mode to operate in a hibernation mode when the input voltage of the transport refrigeration system power source remains below a voltage threshold value for a time period and the control unit is off.

Abstract: A system for the contactless transfer of energy and data includes a transfer path with a primary coil and with a secondary coil. The primary control unit is designed to lead data-modulated first alternating-voltage signals of a first frequency range into the primary coil. The secondary control unit is designed to receive the first alternating-voltage signals of the first frequency range from the secondary coil, and to demodulate the modulated-on data. The system further includes a feed-in line for feeding a second alternating-voltage signal of a second frequency range to a primary line leading to a primary coil and an activation line that is connected to a secondary line that is connected to the secondary coil. A first filter filters the second alternating-voltage signal from the secondary line and provides the signal to an activation connection.

Abstract: The system according to the invention comprises: an electrical network (20), and a regulating assembly (24). The regulating assembly (24) includes a secondary electric power source (58), a conversion assembly (60) for an additional electric power injected on the electrical network (20), the conversion assembly (60) being able, in a first configuration, to consume the additional electric power present on the network (20) to create a supply fluid of the secondary source (58). The assembly (60) includes a reservoir (62A, 62B) for each supply fluid, to collect the supply fluid produced by the conversion assembly (60).

Abstract: A coupling between a replaceable battery and a vehicle in order to produce an electrical contact between the battery and a vehicle electrical system. The coupling includes at least one vehicle-side coupling part and at least one battery-side coupling part, each coupling part having at least one electrical contact site. The contact sites of the coupling parts that are separate from each other until the battery is mechanically fastened to the vehicle can be brought into mutual contact after the battery has been mechanically fastened to the vehicle.

Abstract: The invention relates to a circuit arrangement for a control unit in a motor vehicle for converting an activation signal transmitted from a bus system to the control unit, comprising monitoring the initialisation of the control unit, and to a method for operating said control unit, in particular for avoiding a defective initialisation of the relevant control unit and discharge of the battery of the motor vehicle. At least one of the supply voltages generated by the supply voltage unit is fed via a voltage-monitoring line to the monitoring device of the bus-transceiver only when a successful initialisation of the control unit is detected, or the feed of said supply voltage to the monitoring device or generation of said supply voltage is interrupted, when successful initialisation of the control unit is not detected.

Abstract: Disclosed herein are power management systems for controlling recorded electrical demand by isolating loads from a utility distribution grid connection. The loads are isolated when an energy storage system (ESS) is placed in series between the loads and the grid, with a charger that keeps the ESS from depleting and a power converter that provides energy to the loads from the ESS. A system controller may be enabled to manage the charging of the ESS by the charger relative to a consumption metric. In some embodiments, the loads are categorized, controlled, or curtailed by the controller and may be isolated from other loads. Some embodiments include bypass features or bimodal connections. Additional methods of control to prevent depletion of the ESS are also set forth. Systems herein can prevent or limit demand charges, protect the utility grid from backflow and other dangers, and raise the customer's effective utility service limit.

Abstract: Generally, systems, devices, and methods for a generalized architecture for power and networking in robotic systems is presented. On a robotic chassis, a branching cable harness routes multiple power connections and communications interfaces from an onboard computer and multiple power supplies to various locations on the chassis. Each branch carries all the power and communications connections that are needed by various peripherals, and all the branches terminate with identical connectors. A custom patch cable for each peripheral, such as a camera, taps the appropriate power and communications interfaces from the branches for the peripheral. The peripherals can be relocated on the chassis by unplugging their respective patch cables from the central cable, relocating, and then plugged the patch cables into the nearest branch.

Abstract: First power load apparatuses that use power from a power storage apparatus when a total power consumption amount of all of the plurality of power load apparatuses is greater than or equal to a threshold, and second power load apparatuses not included among the first power load apparatuses are included. A power gateway apparatus stops the supply of power from a power supply system to the first power load apparatuses and performs power supply from the power storage apparatus to the first power load apparatuses when a sum of a total power consumption amount of the second power load apparatuses and a total power consumption amount of the first power load apparatuses exceeds a threshold indicating a maximum value of the system power consumption amount. The power gateway apparatus supplies power from the power generation apparatus to the first power load apparatuses with priority to power from the power network.

Abstract: A power system and method includes a power source; one or more loads that receive power from the power source; a boost circuit for stepping up an input voltage from a primary power source; a capacitor for storing a stepped up voltage from the boost circuit; and a buck circuit for stepping down a voltage from the capacitor, and providing a stepped down voltage to the one or more loads when the power source is unavailable.

Abstract: A printer circuit board (PCB) includes a voltage regulator module (VRM) and a body. The VRM supplies power to a first load and a second load. A decoupling circuit is set on one side of the first load, and the decoupling circuit is electronically connected to the first load. The body includes a multi-layer circuit board. The VRM, the first load, and the second load are positioned on one layer of the circuit board, where the VRM is electronically connected to the first load, but the VRM and the first load are electronically disconnected with the second load. The VRM, the first load, and the second load two are positioned on two other layers of the circuit board, where the first load is electronically connected to the second load, but the first load and the second load are electronically disconnected to the VRM.

Abstract: A circuit includes circuit portions operating from separate power supplies which are switched sequentially. An output of a first portion powered by a power supply (A) is provided as an input to a second portion powered by another power supply (B). Power supply (A) is switched-ON a delay interval later than power supply (B). In an embodiment, the first portion also receives a control input which enables or disables response of the first portion to changes in its inputs. An active circuit is connected between the control terminal and a constant reference potential node of the circuit, and has one transistor of a current-mirror pair connected across supplies (A) and (B). The active circuit connects the control terminal to the constant reference potential node in the delay interval, but is an open circuit otherwise. Power dissipation in the circuit is thereby reduced.

Abstract: An electronic circuit that accepts a variable DC voltage power source and converts it to a constant DC power source, the energy of which is either stored in a battery bank or sent out to DC loads or AC loads via a DC/AC conversion subsystem.

Abstract: A seamless power transfer apparatus comprising a solar grid and a utility power grid. The apparatus comprises a smart switch electrically connected to the solar grid and to the utility grid. The smart switch does not allow the solar grid to supply power to the utility power grid at any time.

Abstract: A solar power system includes a solar panel for converting solar power into direct current power. The solar power system further includes an electric power detecting device, an elevator mechanism, an electric current control unit and a fixing mechanism. The elevator mechanism mechanically pulls a weight under a direct current motor and drives the direct current motor to rotate to generate electric power when the weigh falls. The electric current control unit outputs the direct current power to the direct current motor when the direct current power is equal to a predetermined value and stops outputting the direct current power when the weight is pulled to a predetermined. The fixing mechanism keeps the weight staying at the predetermined height and enables the weight to fall so that the elevator mechanism driving the direct current motor to rotate to generate electric power.

Abstract: A power supply unit for supplying power to a device has a rechargeable, main battery; a charging arrangement for charging the main battery; a non-rechargeable back-up battery; load terminals for connection to a load; and a control unit for controlling supply of power to the load primarily from the main battery and secondarily from the back-up battery. The device is, in particular, a single bay, stand alone parking meter. In the event that the main battery runs low, the control unit is configured to supply power to the load from both the main battery and the back-up battery or only from the back-up battery. The back-up battery is easily replaceable, and the power supply unit has a bay, with connectors for receiving the back-up battery. The main battery is charged from solar panels. A communication device is provided to communicate status messages wirelessly to a control system.

Abstract: The invention relates to a controllable energy store (2) with n parallel energy supply branches (3-1, 3-2, 3-3), where n?1, each of which comprises at least two serially connected energy storage modules (4). Each energy storage module comprises at least one electric energy storage cell (5) having an associated controllable coupling unit (6). The coupling units (6) bridge the associated power storage cells (5) in accordance with control signals or connect the associated energy storage cells to the respective energy storage branch (3-1; 3-2; 3-3). At least one energy storage module (4-11; 4-21; 4-31) is designed such that it has reduced switching losses, reduced in particular by at least 10% compared to the other energy storage modules (4) in the respective power supply branch (3-1; 3-2; 3-3).

Abstract: A method of operating a cascaded multilevel inverter of photovoltaic system to transfer electrical power from a plurality of photovoltaic cells onto an electrical power distribution grid. Power switches in the inverter are operated in a manner effective to combine a block voltage output from each selected photovoltaic blocks series-wise to output an inverter voltage substantially equal to the grid voltage. A selected photovoltaic block may be pulse width modulated to incrementally adjust a current or voltage output by the system. The photovoltaic blocks selected to contribute to the current or voltage output by the system are selected based on a desire to operate solar panels formed by the photovoltaic cells at a maximum power point (MPP) of each solar panel in a photovoltaic block. Shuffling of which blocks are selected may occur at any time during synthesizing a sinusoidal output signal.

Abstract: A power source switching circuit, includes a first and second contact, a first, second, and third relay. The first contact includes a first normally open main contact and a first normally closed auxiliary contact. The second contact includes a second normally open main contact and a second normally closed auxiliary contact. The first, second, third normally open contacts of the first, second, third relays, connected in series, are connected between three phrase lines of the main power source and the second normally closed auxiliary contact. The second normally closed auxiliary contact is connected to a zero line of the main power source. The first, second, third normally closed contacts, connected in parallel, are connected between three phrase lines of the auxiliary power source and the first normally closed auxiliary contact. The first normally closed auxiliary contact is connected to a zero line of the auxiliary power source.

Abstract: The invention relates to an electric energy storage system, comprising an inverter (6), several associations (21, 22), of an electric energy storage unit (1, 2) in series with a bidirectional chopper (3, 4), connected in parallel to a same input of the inverter (6), on the side of their chopper (3, 4), characterized in that at least one bidirectional chopper (3, 4), associated with an electric energy storage unit (1, 2) that can be charged and discharged asymmetrically, is sized asymmetrically for the charge and discharge of said associated storage unit (1, 2).

Abstract: A power adapter to supply power at an output. The power adapter has a programmable gain compensation trim function. In some examples, the gain compensation trim function is a negative gain compensation trim function, and the output of plural power adapters are connected together to form a power supply.

Abstract: Variable frequency alternate current (VFAC) bus arrangements and systems using such VFAC bus arrangements are described, such as arrays of turbines. Such systems have a centrally located power process hub connected to the VFAC bus arrangements in a way that there is a dedicated VFAC bus arrangement for each turbine of the array.

Abstract: An apparatus for transmitting wireless energy in an energy transmission system includes a transmission resonator block configured to have a plurality of transmission resonators arranged therein, a transmission signal generation block configured to generate an energy signal, a switch block connected to the plurality of transmission resonators and configured to switch the energy signal to the plurality of transmission resonators in response to a switching control signal, and a control block configured to generate the switching control signal for switching the energy signal to a transmission resonator including a transmission region where a receiver is placed when detecting the receiver placed in the transmission regions of the plurality of transmission resonators.

Abstract: A magnetic flux pad (BPP) is provided for receiving magnetic flux. The pad may be used with an inductive power transfer system, and comprises a magnetically permeable core (4) and two substantially flat overlapping coils (2, 3) magnetically associated with the core (4).

Abstract: To provide a power feeding system and the like with which charging can be performed without a decrease in the power supply efficiency. To provide a power feeding system and the like with which can offer a power feeding service which is efficient to both a power feeding user and a power feeding provider. The power transmission state in each of power transmitting portions is monitored, the power transmitting portion having the highest power transmission efficiency is selected based on positional advantage, and the power transmitting resonance coil included in the selected power transmitting portion is kept at a first resonance frequency, whereby power transmission continues. The resonance frequency of the power transmitting resonance coil included in the non-selected power transmitting portion (the number of the non-selected power transmitting portions may be plural) is set to a second resonance frequency, whereby power transmission is stopped.

Abstract: A transmitter circuit has transistors each of which is provided between an other end of a primary coil to whose one end a power supply voltage is supplied and either of a power supply voltage terminal and a ground voltage terminal, respectively, and a control circuit for, when causing no current to flow through the primary coil, turning on the one transistor and turning off the other transistor.

Abstract: A coil arrangement is described for an implantable medical system. A coil winding has a planar ring shape winding that encloses a coil interior area. The coil winding is adapted for placement parallel to a corresponding partner coil for communication of an implant link signal having an associated magnetic field component characterized by a coupling factor k representing fractional amount of magnetic field coupling between the coils. A coil coupling lens of magnetic conductive material has multiple lens surfaces and is adapted to shape the magnetic field component to increase the coupling factor and minimize self-heating of adjacent tissues due to the magnetic field component. The lens surfaces include: i. an inner lens surface lying substantially parallel to the plane of the ring shape winding and having an inner lens surface perimeter enclosed within the coil interior area, ii.

Abstract: A power transmission system capable of detecting a point of maximum impedance even when the resonant frequency is a comparatively high frequency and the frequency is swept in a range including a frequency at which the impedance is maximum. The power transmission system includes a power transmission device having a pair of first electrodes and a signal source, and a power reception device having a pair of second electrodes arranged to respectively oppose the first electrodes and are capacitively coupled with the first electrodes, and a load circuit. The power transmission system includes first and second resonant circuits and transmits power at a driving frequency determined by sweeping the frequency of an alternating current signal. The frequency is swept in a preset range and the driving frequency is set to the frequency at which the impedance is maximum measured in the sweeping of the frequency.

Abstract: A power over one-pair Ethernet approach. A data transformer is coupled to a single conductor pair using one or more direct current (DC) blocking elements that preserve an alternating current path. The data transformer enables a network device to transmit and receive data with a link partner device via the single conductor pair. Power transmission over the single conductor pair is enabled through the coupling of a power over Ethernet module to the single conductor pair using a diode that can be paired with a zener diode.

Abstract: A circuit includes a level-crossing detector to generate a level-crossing detection signal when an input signal crosses a predetermined voltage level. A first stage set of capacitors is operatively coupled to the level-crossing detector. A ramp circuit is operatively coupled to the set of series-connected capacitors. A second stage set of capacitors is operatively coupled to the first stage set of capacitors and the ramp circuit. The ramp circuit includes a feedback capacitor and a preset switch to provide a linear ramp output.

Abstract: A power supply circuit includes a first switch, a voltage regulator circuit connected to the first switch, and a control circuit for controlling the first switch. The control circuit includes a second switch, a third switch, and a voltage generation circuit. For controlling the first switch, first voltage output from the voltage generation circuit is applied to the first switch through the second switch, and second voltage output from the voltage generation circuit is applied to the first switch through the third switch. Power consumption of the power supply circuit can be reduced.

Abstract: An exemplary tuner circuit is provided. The circuit includes a power control system, a first switch module, and a second switch module. The first switch module is connected between the power control system and an electronic component. The second switch module is connected between the power control system and a tuner. The power control system is independent of the electronic component it supplies. When the tuner is turned on, the power control system outputs a high level voltage to the first switch module and outputs a low level voltage to the second switch module, the first switch module disconnects power to the electronic component, the second switch module re-establishes a connection between the power control system and the tuner according to the low level voltage output by the power control system.

Abstract: A multi-modal load control system includes a sensor that operates as an occupancy sensor in a first mode of operation and operates as a vacancy sensor in a second mode of operation. The load control system comprises a load control circuit coupled in series between an AC power source and an electrical load for controlling the amount of power delivered to the load in response to sensor, which is operable to detect occupancy or vacancy conditions in a space in which the sensor is located. In the first mode, the load control circuit turns the load on when the sensor detects the occupancy condition and turns the load off when the sensor detects the vacancy condition. In the second mode, the load control circuit turns the load off when the sensor detects the vacancy condition and does not turn the load on when the sensor detects the occupancy condition.

Abstract: Provided is an apparatus and method for reducing power consumption of an electronic product. The apparatus and method reduces unnecessary power consumption by cutting off power for driving a load if a predetermined control condition is satisfied in an electronic product operating for a long time. In the electronic product operating for a long time, power for driving the load is cut off to prevent waste of the power if the predetermined control condition is satisfied, and the load is driven only when the predetermined control condition is not satisfied, thereby efficiently reducing the power consumption of the electronic product.

Abstract: A switch circuit for switching between a first storage and a second storage. The switch circuit includes a switch, first and second control circuits, a switch control chip, and a processing chip. When the second control circuit transmits power from a power supply to the first storage, the first control circuit connects the power supply to the first storage, and connects the second control circuit to the processing chip the first storage regardless of the state of the switch. When the second control circuit transmits power from the power supply to the second storage, the first control circuit connects the power supply to the second storage, and connects the processing chip to the second storage regardless of the state of the switch.

Abstract: A wiring structure between main body and cover body of electronic device includes a support connection member. The support connection member has a first pivoted section pivotally connected to the cover body and a second pivoted section pivotally connected to the main body. The first pivoted section is formed with a first pivot hole communicating with outer side. The second pivoted section is formed with a second pivot hole communicating with outer side. The support connection member is formed with a recessed receiving space between the first and second pivoted sections in communication with the first and second pivot holes. At least one conductive body is disposed in the receiving space. The conductive body has a first connection end and a second connection end respectively outward extending from the first and second pivot holes. A protection cover board is disposed in the receiving space for covering the conductive body.

Abstract: A power supply device includes: a battery pack; a transforming unit configured to transform a DC voltage supplied from the battery pack; and a control unit configured to determine, based on a characteristic of the battery pack, whether or not the converting unit performs an outputting operation.

Abstract: Methods, devices and systems are provided for wirelessly powering and controlling a lab-on-a-chip device. Direct current (DC) and alternating current (AC) signals can be produced at the lab-on-a-chip device in a wireless manner. In some configurations, integrated RF components and optoelectronic components of the lab-on-a-chip device are used to collaboratively produce the DC and AC signals. In other configurations only optoelectronic components on the lab-on-a-chip system can produce the DC and/or AC signals in response to incident light. By modulating the incident light, AC signals of various frequencies and waveforms can be generated. The DC and AC signals can be used by additional integrated electronic circuits and by a microfluidic chip lactated on the lab-on-a-chip device to control the behavior of the bioparticles in the microfluidic device.

Abstract: The present invention provides a safety pin which includes a cylinder having a first and second interfaces. A piston is moveably disposed within the cylinder to divide the cylinder into the first and second chambers. A safety pin is securely attached to the piston. A compressed air supplying device supplies the compressed air to the first and second chambers selectively. The safety made accordance with the present invention is securely attached to the piston which divides the cylinder into the first and second chambers. When the compressed air is injected into the first and second chambers selectively, the safety pin is extended or retracted so as to realize the lockup and unlock of the equipment eliminating human error resulted from negligence.

Abstract: An object of the invention is to provide an electromagnetic generator that can efficiently generate electric power even though there is vibration having a small amplitude among electromagnetic generators generating electric power by using the vibration of magnets. Accordingly, these is provided an electromagnetic generator including a magnet assembly in which a plurality of permanent magnets are magnetized in a stacking direction and stacked so that surfaces of the permanent magnets corresponding to the same pole face each other, and a solenoid coil that is positioned around the side surface of the magnet assembly. The magnet assembly is adapted so that the position of the magnet assembly relative to the solenoid coil is changeable.

Abstract: An induction generator (100) for a remote switch which comprises a U-shaped magnetic diverter (102) with first and second limbs as well as a coil core (104) with an induction coil (106) arranged between the limbs. A movable magnetic element (110) is provided for switching the induction generator (100). When the magnetic element (110) is in its first position, the magnetic element (110) is connected with the first limb and the coil core (104) and, when the magnetic element (110) is in its second position, the magnetic element (110) is connected with the coil core (104) and the second limb.

Abstract: The invention intends to improve a stator which is detachably installed to an outer peripheral portion of a can accommodating a rotor. The stator is integrally formed with a resin mold by arranging a stator assembly (110) within metal molds (300, 310) and injecting a molten resin (P1) from a gate (G1) at one position. An annular plate (160) is mounted to an upper portion of the stator assembly (110) so as to prevent the molten resin from intruding into magnetic pole teeth (120a, 122a), and prevent a weld line from being generated in an outer peripheral surface of the resin mold.

Abstract: A rotor resin assembly of a rotor of an electric motor includes a rotor magnet including a substantially cylindrical yoke molded from thermoplastic resin containing a soft magnetic material or ferrite and a resin magnet integrally formed in the outer circumference of the yoke, a position detection magnet arranged at one end in the axial direction of the rotor magnet, and a substantially doughnut-like rotor core arranged in the inner circumference of the rotor magnet and formed by laminating a predetermined number of electromagnetic steel plates. The rotor magnet, the position detection magnet, and the rotor core are integrally formed by resin. A shaft is inserted into an inner diameter section of the rotor core, and the rotor resin assembly is caulked by a jig to form a recess in the vicinity of the inner diameter sections of both end faces of the rotor core and assembled to the shaft.

Abstract: Disclosed herein is an axial flux permanent magnet (AFPM) motor including: a stator including a stator core, a magnet wire wound around the stator core, a shaft, and a stator core supporting member fixedly supporting the stator core to the shaft; and a rotor including a rotor case having a space part formed therein so as to receive the stator core therein, a magnet fixedly coupled to an inner side portion of the rotor case so as to face the stator core, and a bearing rotatably supporting the rotor case to the shaft.

Abstract: A casing configured for receiving a motor. The motor includes a shaft, two end plates substantially perpendicular to the shaft, and two bosses respectively protruding from the two end plates along the shaft. The casing includes two abutting plates. Each abutting plate includes an arcuate resisting surface that substantially faces the other abutting plate for abutting against a corresponding end plate. The distance between the two resisting surfaces increases from the middle thereof to the side thereof. Each abutting plate comprises a notch formed in an edge thereof and extending along the middle of the corresponding resisting surface for receiving a corresponding boss.

Abstract: Disclosed are an electric motor and an electric vehicle having the same. The electric motor includes a stator including a stator core and a stator coil wound around the stator core, a rotor disposed to be rotatable with respect to the stator, and a cooling unit configured to allow a cooling fluid to flow therein and disposed to be in contact with the stator to cool the stator, wherein an outer surface of the stator core includes grooves in which the cooling unit is inserted. Cooling performance can be enhanced by shortening a heat transmission path, and the cooling unit can be easily fabricated and coupled.

Abstract: A cooling system includes a cooling circuit that has a circulation pump circulating a coolant containing antifreeze solution and cools down, by means of the coolant, a power element mounted in a power converter for an on-vehicle rotary electric machine; a control signal calculation unit that calculates heat quantity generated by the power element; a power element temperature sensor that detects the temperature of the power element; and a coolant temperature sensor that detects the temperature of the coolant. The control signal calculation unit calculates, on the basis of the heat quantity, the temperature of the power element, and the coolant temperature, power element cooling performance that is the amount of heat transferred from the power element to the coolant per unit temperature difference, and lowers the driving power of the circulation pump when the calculated power element cooling performance is greater than a predetermined criterion.

Abstract: A stator of an electrical machine that is straightforward to assemble and for which an efficient liquid cooling can be arranged includes a stator core (801) having a plurality of stator teeth and stator slots, and a stator winding having a plurality of stator coils (803). The width of each stator coil is one stator slot pitch, and the stator teeth are shaped to allow each stator coil to be installed by pushing the stator coil to surround one of the stator teeth. The stator coils include tubular cooling channels (804) for conducting cooling liquid in the stator slots. The stator winding is designed by taking into account the aspects related to the liquid cooling, and it has been noticed that a stator winding structure which is advantageous for arranging the liquid cooling has satisfactory electrical and magnetic properties too.

Abstract: Embodiments of the invention relate generally to electrical machines and, more particularly, to electrical machines containing a coil block assembly for cooling conductive coils. In one embodiment, the invention provides an electrical machine comprising: at least one tooth coil including: a stator tooth; and at least one conductive coil wound around the stator tooth, forming a plurality of coil turns; a coil block assembly between a first turn and a second turn of the plurality of coil turns, the coil block assembly including: at least two coil blocks, each coil block including a body and a face having at least one recess into the body, wherein the coil blocks are oriented with faces opposed, such that at least one cooling channel is formed by the at least one recess of each coil block.

Abstract: A cooling support element for a stator segment of an electrical machine is provided. The cooling support element has a first and a second plate each having an upper surface and a lower surface. The upper surface of the first plate has anchoring element for anchoring a stator lamination stack attached to the cooling support element. The lower surface of the second plate has an inlet and an outlet opening. The two plates are attached to each other. The lower surface of the first plate faces the upper surface of the second plate. Separator elements are disposed between the lower surface of the first plate and the upper surface of the second plate for providing a cooling channel. A cooling fluid is guidable from the inlet opening through the cooling channel to the outlet opening for dissipating heat from the stator lamination stack.