251results about "Association for rectification" patented technology

An electric machine is provided. A transformer comprises a magnetic coupling. A wound field synchronous machine comprises a rotor winding, a secondary circuit of the transformer electrically connected to the rotor winding, and a stator winding. The secondary circuit comprises a secondary winding, a rectifier electrically, a switch for switching voltage between the rotor winding and the rectifier in a first direction, and an energy storage arranged to store energy provided by the rectifier and the rotor winding and provide a voltage to the rotor winding in a second direction. A power converter is coupled between the power supply and the wound field synchronous machine. The power converter comprises a stator winding power supply arranged to provide multiple phase AC excitation to the stator winding and a primary circuit of the transformer comprising a primary winding arranged to provide AC power to the primary winding.

An electric power system (400) for a vehicle includes at least one electric machine (321), one or more power rectifiers, and a plurality of DC channels. The at least one electric machine (321) includes a plurality of tooth-wound multi-phase windings (311) that are substantially magnetically decoupled, and the at least one electric machine (321) is mechanically balanced even if one of the plurality of windings (311) is de-energized. The one or more power rectifiers are configured to produce rectified power from the power generated by the at least one electric machine (321). The plurality of DC channels are formed after the at least one power rectifier and are configured to provide DC power to one or more loads within a vehicle.

A fracturing apparatus includes a motor, a first plunger pump, a power supply platform, a gas turbine engine, a generator, and one or more rectifiers. At least two of the gas turbine engine, the generator, and the one or more rectifiers are arranged on the power supply platform. A first end of the generator is connected to the gas turbine engine. A second end of the generator is connected to the one or more rectifiers. The generator is configured to output a voltage to the one or more rectifiers. The one or more rectifiers are configured to provide power to the motor. The motor is configured to drive the first plunger pump.

An electric power system for a vehicle includes at least one electric machine, one or more power rectifiers, and a plurality of DC channels. The at least one electric machine includes a plurality of tooth-wound multi-phase windings that are substantially magnetically decoupled, and the at least one electric machine is mechanically balanced even if one of the plurality of windings is de-energized. The one or more power rectifiers are configured to produce rectified power from the power generated by the at least one electric machine. The plurality of DC channels are formed after the at least one power rectifier and are configured to provide DC power to one or more loads within a vehicle.

Aircraft electric machines are described. The aircraft electric machines include a laminated rotor operably connected to a shaft, the laminated rotor comprising a plurality of rotor teeth and air gaps defined between adjacent rotor teeth about a circumference of the laminated rotor, a modular stator assembly comprising at least one stator segment having a winding wrapped about a center body of the at least one stator segment, a cooling element arranged at least one of adjacent to or within the winding, and at least one power module system comprising an active rectifier and wherein the laminated rotor and modular stator are arranged as a switched reluctance rotor-stator assembly.

The utility model provides a low-interference type brush motor, and relates to the technical field of motors. The motor comprises a motor casing, a motor end cover, a circuit board, a driving unit and an output shaft, the motor casing is provided with a mounting port, the motor end cover can block the mounting port, the circuit board is arranged on the motor end cover, and a plurality of electronic components are arranged on the circuit board. And the driving unit is arranged in the motor shell and is in transmission connection with the output shaft. The circuit has the advantages of being good in electromagnetic compatibility and high in stability.

A control device is provided for a human-powered vehicle that includes a generator configured to output electrical power, an electric power storage device electrically connected to the generator, and a component having an actuator actuated by electrical power from at least one of the generator and the electric power storage device. The control device includes a controller electrically connected to at least one of the generator and the electric power storage device. The controller is configured to control an operation state of the component in accordance with information relating to at least one of an output state of the generator and a store state of the electric power storage device.

Disclosed are a non-contact rotary transformer and a motor comprising same. A non-contact rotary transformer according to the present invention is a device for connecting a rotor of a motor with an external power source in a non-contact manner, and is characterized by comprising: a core part disposed inside a hollow motor shaft in a coaxial structure with the motor shaft; a primary coil part installed on the outer circumferential surface of the core part; a secondary coil part which is installed on an inner main surface of the motor shaft and surrounds the primary coil part at a predetermined interval (air gap) therefrom; and a rectifier circuit part which is coupled to the motor shaft and rotates in synchronization therewith, and which is electrically connected to the secondary coil part.

The invention discloses a gravity wheel magnetic energy internal circulation generator, and belongs to the technical field of internal circulation generators, the gravity wheel magnetic energy internal circulation generator comprises a bearing seat, a magnetomotive mechanism is installed in the bearing seat, the magnetomotive mechanism is in transmission connection with a power generation mechanism, and reinforcing mechanisms are arranged around the magnetomotive mechanism and the power generation mechanism. The magnetomotive mechanism drives the power generation mechanism to generate power, one third of the power generated by the power generation mechanism is provided for the magnetomotive mechanism to keep the continuous operation of the magnetomotive mechanism, and the other two thirds of the power is supplied to the outside, so that the enhancement mechanism can generate some power by using the operation of the magnetomotive mechanism and the power generation mechanism. The operation efficiency of the magnetomotive mechanism is improved through the electric power, then the power generation efficiency is improved, meanwhile, the flywheel is intermittently driven to rotate through the additionally-generated electric power, and the flywheel is prevented from decelerating.

A rotor chipset assembly and an electric motor including the assembly are provided. The assembly comprises a printed circuit board having opposing first and second surfaces, the printed circuit board including a plurality of electronic components each having an outward surface, wherein the first, second, and outward surfaces define a board surface profile; a cooling jacket coupled to the printed circuit board, the cooling jacket including an inner surface that faces the board surface profile, wherein the cooling jacket includes a fluid inlet port proximate a first end of the printed circuit board, and wherein the cooling jacket includes a first jacket portion that faces the first surface of the printed circuit board and a second jacket portion that faces the second surface of the printed circuit board; and a coolant fluid pathway volume defined by the board surface profile and the inner surface of the cooling jacket.

The invention discloses a rotor bracket structure of a multi-phase outer pivot brushless exciter, belongs to the field of brushless exciters, and aims to solve the problem that screws for fixing balancing weights of a rotor bracket of an existing multi-phase outer pivot brushless exciter are loosened and fall off. The large balance weight groove is composed of a first groove opening part and a first groove bottom, the width of the large balance weight is matched with the width of the first groove bottom, the first jacking screw comprises a first screw rod part and a first cap head part which are axially connected, and the diameter of the first cap head part is smaller than the width of the first groove bottom and larger than the width of the first groove opening part. The large balancing weight is in threaded fit with the first screw rod part, when the large balancing weight is fixed, the first jacking screw is screwed, so that the first cap part is far away from the large balancing weight, the large balancing weight jacks the bottom surface of the bottom of the first groove, and the first cap part jacks the top surface of the bottom of the first groove. The positions of the large balancing weight and the small balancing weight can be adjusted smoothly, and screws for fixing the large balancing weight and the small balancing weight can be prevented from loosening and falling off.

A drive unit assembly includes a motor having: a motor housing; a shaft extending through the motor housing; a rotor coupled to the shaft; a stator arranged around the rotor; and one or more motor busbars communicatively coupled to the stator. The drive unit assembly further includes a filter having: a filter housing coupled to the motor housing; one or more filter busbars, each filter busbar having an inlet and an outlet configured to communicatively coupled to at least one of the one or more motor busbars; a printed circuit board (PCB) communicatively coupled to the one or more filter busbars; and one or more dissipative components coupled to the PCB.

A rotary transformer is disclosed herein comprising a stationary portion and a rotating portion. The stationary portion includes a transformer housing, a primary coil positioned within the transformer housing and defining a central axis, and a stationary printed circuit board (PCB). The stationary PCB includes an excitation coil of an inductive position sensor and at least one sensing coil of the inductive position sensor. The rotating portion of the rotary transformer includes a rotating PCB with a secondary coil of the rotary transformer positioned on the rotating PCB. The rotating portion further includes a diode holder connected to the rotating PCB. The diode holder includes at least one target for the inductive position sensor.

The invention relates to the technical field of high-speed generators, and discloses a double-three-phase fractional-slot winding carbon fiber reinforced high-speed generator and a design method.The double-three-phase fractional-slot winding carbon fiber reinforced high-speed generator comprises a permanent magnet synchronous motor, the permanent magnet synchronous motor adopts a double-three-phase winding surface-mounted topology and fractional-slot distribution winding, and a carbon fiber bundle is arranged on the surface of a rotor; the stator winding adopts a split transposition structure and is internally provided with an oil duct; and the controllable rectification controller adopts a three-phase two-level main power conversion topology and comprises a control circuit of a dual-digital signal processor redundancy architecture, a driving circuit of a multi-level driving architecture and a three-phase full-bridge silicon carbide main power circuit adaptive to a high-voltage multi-level topology. By adopting the dual three-phase fractional slot winding surface-mounted permanent magnet synchronous motor topology and cooperating with the split transposition winding structure, the winding circulation loss is reduced, the fault-tolerant capability is improved, and the rotor is bundled and reinforced by carbon fiber wires to counteract the high-speed rotation centrifugal force.

A control system includes a switch circuit configured to switch an alternating-current voltage, a power transmission antenna configured to wirelessly transmit power based on the alternating-current voltage determined by switching of the switch circuit, a power reception antenna configured to wirelessly receive the power wirelessly transmitted from the power transmission antenna, a rectification circuit configured to rectify a voltage output from the power reception antenna to apply the alternating-current voltage to a load unit, a current detection unit configured to detect an alternating current flowing through the switch circuit, and a control unit configured to control a value of the alternating-current voltage applied to the switch circuit based on a value of the alternating current detected by the current detection unit.

A turbomachine (1100) includes a housing (1118) and a rotating group that is supported for rotation about an axis of rotation (1104) within the housing. The turbomachine also includes a turbomachine stage including a wheel of the rotating group supported within a turbomachine housing of the housing. The turbomachine further includes an e-machine section including an e-machine (1114) that is housed within an e-machine housing of the housing. The e-machine is operably coupled to the rotating group and configured to operate as at least one of a motor and a generator. Moreover, the turbomachine includes an integrated controller (1150) that extends in a circumferential direction about the axis of rotation. The integrated controller is configured for controlling the e-machine. Additionally, the turbomachine includes a thermally decoupled fastener arrangement (1158) that attaches the integrated controller to the e-machine housing. The fastener arrangement thermally decouples the integrated controller from the turbomachine stage.

The utility model belongs to rectifier technical field especially is concerned about a kind of synchronous rectification module for generator low pressure high power.Technology includes two rectification modules, and diode is installed on rectification module, and the upper end of rectification module is fixed with first boss, and rectification module is first rectification module and second rectification module, and lower end is hinged together by hinging piece;First boss is provided with through-hole, and eccentric cam clamping rod is equipped in through-hole, and the clamping rod left end of eccentric cam clamping rod sequentially passes two first bosses from the right side of through-hole;Nut is threadedly connected on the clamping rod of first boss left side;The clamping rod of first boss right side is equipped with eccentric cam that can rotate left and right.Eccentric cam rotates left and right around camshaft and clamps first boss, so that first rectification module and second rectification module can be quickly installed and disassembled from the rotating shaft of generator, and diode and other components on rectification module are conveniently replaced and maintained.

The utility model relates to the technical field of generators, and discloses an outer rotor generator structure for a rowing machine and an exercise bicycle, which comprises a rear protective cover, a stator body is arranged in the rear protective cover, the left end of the rear protective cover is connected with a front cover PCB (printed circuit board) in a clamping manner, and a bracket is arranged at a through hole in the front cover PCB; a bearing is installed in the support, a rotor body is installed in the bearing, and a magnet is installed outside the support. According to the utility model, the functions of the rectification circuit board are respectively transferred to the front cover PCB and the upper controller of the generator, so that the rectification circuit board is reduced, the cost can be greatly optimized, the product reliability is improved, the assembly wires are reduced, the cost is reduced, and the sealing structure is formed between the front cover PCB and the rear protection cover. And the problems of noise or jamming and the like caused by falling of foreign matters due to a gap between the stator and the rotor are prevented.

The present invention discloses a fiber holder, comprising a body, wherein the body has a fiber receiving hole arranged along the length direction, and the fiber receiving hole is used to receive conductive fibers; the body comprises an anti-slipping part and a fixing part; the fixing part and the anti-slipping part constitute the body, and the outer diameter of the anti-slipping part is larger than the outer diameter of the fixing part, and the fiber receiving hole is at least formed inside the fixing part and extends to the end of the body; the fixing part is deformed after being subjected to an external force, so that the inner diameter of part of the fiber receiving hole shrinks, so as to fix the conductive fibers in the body. In the present invention, the fiber holder uses its fixing part to fix the conductor fibers, and provides an axial restraining force.

Provided is a controller having high workability (assemblability and maintainability). The controller is provided with: a housing provided with a bottom panel; a power supply circuit board provided with a first connector and disposed on the bottom panel; a system circuit board provided with a second connector, the system circuit board and the power supply circuit board being arranged in a direction along the bottom panel and disposed on the bottom panel; and a first cable connecting the first connector and the second connector, the first connector being disposed along a side of the power supply circuit board facing the system circuit board, and the second connector being disposed along a side of the system circuit board facing the power supply circuit board. The first connector and the second connector are disposed so as to be offset in a second direction orthogonal to a first direction in which the power supply circuit board and the system circuit board are arranged.

Embodiments of the disclosure provide an electric motor drive system comprising a stationary side, a rotating side, and a sensor system on the stationary side, capable of sensing current on the stationary side and transmitting current-based sensor readings to a control unit. The stationary side further comprises a compensation network. The control unit is capable of performing a rotor current prediction process, which is capable of predicting a rotor current connected to a rotor of the rotating side, at least partially, based on the current-based sensor readings and a parameter of at least one component of the compensation network of the stationary side.

The present invention relates to the field of generators, and specifically to a generator structure with multiple terminals, including a front cover, a rear cover assembly, a rotor, a stator, a rectifier bridge, a regulator, and a cover; the rectifier bridge includes a rectifier bridge bracket, and a rectifier bridge terminal for integrating welding diodes and stator leads is provided on the rectifier bridge bracket. A new type of generator structure is disclosed in the present invention. The generator structure disclosed in the present invention has multiple terminals. Such a generator can select different terminal wiring as needed, so that the generator is arranged more compactly on the whole vehicle, which also reduces the variety of generators and the cost of generator research and development, so that a generator has multiple generator wiring methods. The generator disclosed in the present invention has a wider range of applications.

To provide a motor compressor capable of easily securing dumping resistance when a large current is input to a common-mode choke coil.SOLUTION: A motor compressor comprises a noise reduction unit 50 that reduces both common-mode noise and normal-mode noise. The noise reduction unit 50 includes: a common-mode choke coil 51 for reducing common-mode noise; and a magnetic damping unit 55 for reducing normal-mode noise. The common-mode choke coil 51 includes: an annular core 60; a first winding 61 wound around the core 60; and a second winding 62 wound around the core 60 and arranged aside the first winding 61 with a gap therebetween. The magnetic damping part 55 is formed of a plate-shaped magnetic material. Eddy currents are generated in the magnetic damping unit 55 due to a leakage magnetic flux leaking from the core 60. The noise reduction unit 50 includes a plurality of magnetic damping units 55. The plurality of magnetic damping units 55 are stacked with insulation layers 73 therebetween.SELECTED DRAWING: Figure 5

The invention discloses a wave energy and ocean current energy integrated power generation device, and relates to the technical field of power generation devices. The power output end of the ocean current energy capturing mechanism is connected with the first rotating part to drive the first rotating part to rotate; the mechanical motion rectifying mechanism comprises a reciprocating lifting part, a rotary output part and a motion rectifying structure, and the motion rectifying structure is connected with the reciprocating lifting part and the rotary output part and can convert lifting bidirectional power of the reciprocating lifting part into rotary power of the rotary output part; the rotation output part is connected with the second rotation part and can drive the second rotation part to rotate in the direction opposite to the rotation direction of the first rotation part. And the floating output end of the wave energy capturing mechanism is connected with the reciprocating lifting part. The wave energy power generation device and the ocean current energy power generation device can be coupled together, the effect of adding the rotating speed of the power generator is achieved, and then the energy utilization rate is increased.

A vehicle is provided that includes a traction motor. The traction motor includes a direct current capacitor (DC capacitor) and a printed power circuit board (power PCB) that converts the direct current power (DC power) received by the DC capacitor into alternating current power (AC power). The traction motor also includes a stator with windings. The traction motor further includes a first phase connection, a second phase connection, and a third phase connection arranged between the power PCB or power module and the stator windings. The first, second, and third phase connections provide an electrical connection between the power PCB or power module and the stator windings and are arranged in a triangular configuration to supply AC power to the stator windings.The traction motor also includes a triangular AC choke that encloses the first phase connection, the second phase connection and the third phase connection in the triangular configuration.

Embodiments of the present disclosure provide an electric drive motor system including a stationary side, a rotating side, and a stationary side sensor system operable to detect current on the stationary side and to send current-based sensor readings to a controller. The fixed side further comprises a compensation network. The controller is operable to perform a rotor current prediction operation operable to predict a rotor current associated with the rotor on the rotating side based at least in part on the current-based sensor readings and a parameter of at least one component of the compensation network on the fixed side.

The invention discloses a brushless direct current generator rectifier fault detection system and a protection method, and belongs to the technical field of aviation power supply systems. Comprising a direct-current generator, a generator controller, a direct-current main feeder line, a direct-current contactor, a direct-current bus bar and a storage battery, the invention includes a main contactor that opens the generator output in response to generator rectifier short circuit protection. A traditional mode of detecting pulsating voltage after rectification and filtering is adopted, and under the condition that a single diode of a rectifier is open-circuited, pulsating voltage conversion is not obvious due to filtering, and a generator controller cannot accurately judge faults. According to the invention, the second rectifying circuit is added, so that the pulsating voltage before filtering of the generator is detected, the defects are overcome, the amplitude of the pulsating voltage can be accurately detected, faults such as open circuit and short circuit can be accurately identified, and the safety of the system and the aircraft is improved.

Some embodiments provide irrigation generator systems that include a main conduit comprising an inlet conduit and an outlet conduit; a flow control system positioned within the main conduit; a generator conduit comprising a generator inlet conduit and a generator outlet conduit, wherein the generator inlet conduit is fluidly coupled with the main conduit upstream of the flow control system, the generator outlet conduit is fluidly coupled with the main conduit downstream of the flow control system; and a generator comprising a rotor assembly cooperated with generator conduit to be physically activated by a flow of fluid through the generator conduit causing rotation of the rotor assembly and generates electrical power. The flow control system transitions between a closed state to the open state in response to a water pressure exceeding a pressure threshold.

A heating, ventilation, and air conditioning (HVAC) system includes a blower assembly including a blower motor; and an electronically commutated motor (ECM) controller in electrical communication with the blower motor, the ECM controller including: a rectifier electrically connected to an alternating current (AC) input source, the rectifier being configured to receive AC electricity from the AC input source and convert the AC electricity to direct current (DC) electricity; a DC electrical circuit including a first DC electrical circuit loop and a second DC electrical circuit loop, the rectifier being configured to circulate the DC electricity through the DC electrical circuit; and a relay located within the first DC electrical circuit loop, the relay being configured to open to break the first DC electrical circuit loop and close to complete the first DC electrical circuit loop in order to reduce standby power consumption of the ECM controller.