601results about "Power current collectors" patented technology

An electromechanical joint provides rotational movement in at least two dimensions while conducting electrical power between orthogonal hubs. The joint, shaped as a cross, has four conical shafts positioned orthogonally and apart from each other within an interior of a housing. Apexes of the conical shafts face each other proximate a centroid of the housing. A conductive fluid, such as Galinstan, fills recesses between the conical shafts. Separate yokes attached to pairs of the hubs may impart forces on the shafts, causing the shafts to rotate within the conductive fluid around orthogonal axes. The conductive fluid provides simultaneous conduction of electrical power between the hubs. The yokes may be affixed respectively to a current collector and conductive arms of a work machine for improved movement and power conduction without the need for additional components.

A wireless power transfer system according to the present invention includes: a supply device having a primary coil installed on a road; a vehicle having a secondary coil that receives power transferred in a non-contact manner from the primary coil; and a server communicably connected to the supply device and the vehicle by wide-area wireless communication, in which the supply device transmits identification information of the supply device to the server before receiving a signal from the vehicle by narrow-area wireless communication, the server transmits a compatibility list including a combination of the compatible supply device and vehicle to the supply device on the basis of identification information of the supply device and information of the vehicle, and the supply device performs pairing with the vehicle on the basis of the compatibility list in a case of receiving the signal from the vehicle by the narrow-area wireless communication.

A three-rail power supply system includes a power supply having positive, negative, and neutral terminals, a rail system having a power supply end and a termination end, and an asymmetric resistor network. The rail system includes a positive rail, a negative rail, and a ground rail coupled to the positive terminal, the negative terminal, and the neutral terminal, respectively. The negative rail is disposed parallel to the positive rail. The ground rail is disposed in parallel to, and between, the positive rail and the negative rail, and is electrically grounded at a plurality of intervals between the power supply end and termination end. The asymmetric resistor network includes two pairs of resistors asymmetrically coupled to the rail system at the power supply end and termination end, and is configured to limit a fault current through a faulty connection in response the positive, negative, and / or ground rails experiencing the faulty connection.

An onboard charging system configured for installation on a rail vehicle is provided, comprising: one or more current collection contacts; a battery, electrically connectable to the one or more current collection contacts; and an onboard charging controller having a wireless communications interface. The onboard charging controller is configured to: establish a secure wireless communication connection with a first trackside charging controller; and responsive to determining that the one or more current collection contacts have been brought into electrical contact with corresponding trackside charging contacts: instruct the first trackside charging controller, via the secure wireless communication connection, to provide a first current via the one or more trackside charging contacts.

A wireless power transfer system according to the present invention is a wireless power transfer system that performs wireless power transfer by magnetic coupling between a supply device on a ground side and a traveling vehicle, the wireless power transfer system including a control device that controls the wireless power transfer from a power transmission unit of the supply device to a power reception unit of the vehicle, in which the control device sets a time of alignment check to be longer than a time of pairing.

A power rail connector for an electric power system in an electric machine includes a linkage having a lower link and an upper link, and a rail contactor coupled to the lower link and including electrical contacts positioned to electrically connect to a power rail. The linkage includes a fold joint, a lift joint, and a pivot, and is adjustable from an extended, current-collecting configuration to a collapsed configuration via rotation of the lower link relative to the upper link and rotation of the upper link relative to the pivot. Related machinery and methodology is also disclosed.

Dynamic energy transfer (DET) systems are costly and time-consuming to install. Accordingly, an installation system is disclosed that comprises stowage for rail segments and poles, two strategically positioned cranes, and / or strategically positioned platforms, to enable less expensive and faster installation of the various components of a DET system. Installation, utilizing the installation system, can significantly decrease the cost of installation, while increasing the rate of installation and maintaining safety.

The invention relates to a method (200) for operating a linear transport system (100), wherein the method comprises; Controlling a first energy transfer coil (123) of a motor module (117) of the stationary unit (103) with an operating voltage (U) to generate an alternating magnetic field by a control unit (119) of the linear transport system (100) in a control step (201), wherein a synchronization signal (S) is integrated into the operating voltage (U); Reading out a voltage (U_ind) induced by the alternating magnetic field in the second energy transfer coil (125) of the at least one moving unit (101) and detecting the synchronization signal (S) by a subcontrol unit (121) of the moving unit (101) in a readout step (203); and Performing a synchronization between the control unit (119) of the linear transport system (100) and the sub-control unit (121) of the moving unit (101) based on the synchronization signal (S) by the sub-control unit (121) of the moving unit (101) in a synchronization step (205). The invention further relates to a linear transport system (100).

A wireless power transfer device includes: a power transmitting resonant circuit including a power transmitting coil and a power transmitting capacitor; a switching circuit switching a state of the power transmitting resonant circuit between a resonant state and a non-resonant state; and a determination circuit determining whether a facing state in which the power transmitting coil faces the power receiving coil or a non-facing state in which the power transmitting coil does not face the power receiving coil is occurring. After determining that either one of the non-facing state and the facing state transitions to the other one, the switching circuit performs switching process to switch from either one of the non-resonant state and the resonant state to the other one within a voltage zero-crossing range including a voltage zero-crossing point and a current zero-crossing range including a current zero-crossing point of the power transmitting coil or power transmitting capacitor.

In one aspect, a boom assembly for a mobile machine includes a front end and a rear end, and further includes an extendable and retractable boom. The boom includes a first end, a second end, a top wall extending from the first end to the second end, and a bottom wall extending from the first end and the second end, the bottom wall being opposed to the top wall, and a central wall. The central wall connects the top wall and the bottom wall so as to form a front compartment on one side of the central wall, and a rear compartment on a second side of the central wall, when the boom is in an extended position. A component of an actuator system is connected to the central wall and located within the rear compartment.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

A method is provided for transferring energy from a stationary unit to a movable unit of a linear transport system. The system includes a guide rail for guiding the movable unit, a plurality of stationary units, a controller, and a linear motor for driving the movable unit along the guide rail. The linear motor includes a stator and a rotor. The stator comprises the stationary units, each having one or more drive coils. The rotor is arranged on the movable unit, and has one or a more magnets. In addition, the stationary units each have one or more energy-transmitting coils, and the movable unit has at least one energy-receiving coil. The controller determines position data for the energy-receiving coil, selects at least one energy-transmitting coil based on the position data, and outputs a control signal to the stationary unit, with identification information for identifying the energy-transmitting coil.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

To provide a non-contact power transmission system capable of performing appropriate power transmission to mobiles during moving and stopping.SOLUTION: A non-contact power transmission system 1 comprises a power transmission unit 8, a power transmission power conversion unit 7, and a power transmission side control device 9. The power transmission unit 8 comprises a primary side coil for sending alternating-current power to be transmitted to a power reception device 4. The power transmission power conversion unit 7 comprises a plurality of transistors connected to the primary side coil. The power transmission power conversion unit 7 converts direct-current power supplied from a power supply unit 6 to alternating-current power. When a coupling coefficient is smaller than a predetermined value or a power transmission duration time is equal to or longer than a predetermined first time at the time of power transmission by the power transmission unit 8, the power transmission side control device 9 changes transmission power in decreasing tendency toward zero depending on a lapse of time until power transmission stop.SELECTED DRAWING: Figure 2

The utility model discloses an anti-freezing rain pantograph lower arm gas circuit, which is characterized in that a gas pipe is arranged in an inner cavity of a lower arm rod, penetrates out of the side wall of the lower arm rod through a plate penetrating joint, and is fixed on the side wall of the lower arm rod. The plate-penetrating connector penetrates through a hole in the center of the circular plate, two ends of the plate-penetrating connector are locked by nuts, and the circular plate is fixed on the lower arm rod through screws. The two ends of the plate penetrating connector are respectively provided with a clamping sleeve nut, the opposite ends of the two clamping sleeve nuts are respectively provided with a thin nut, after the two clamping sleeve nuts are oppositely tightened, the two thin nuts are tightened, and the plate penetrating connector is fixed to the circular plate through the two thin nuts. And the air path is arranged in the lower arm, so that the air path can be prevented from being damaged by the falling ice, and the stability of the pantograph running in the freezing rain weather is improved.

To provide a charge control device of an electric vehicle and a method for the same in which PLC communication (Power Line Communication) with a charger can be prevented from being interrupted in the process of charging a battery of the electric vehicle.SOLUTION: A charge control device 130 includes: a communication unit 20 which performs the PLC communication with the charger; and a controller 40 which requests the charger for a charging request current, detects a round trip time required until reception of a response for the request, and controls the charging request current based on the detected round trip time.SELECTED DRAWING: Figure 3

The utility model discloses a vehicle-mounted contact rail detection device, belongs to the field of rail detection, and aims to reduce labor intensity and improve efficiency. Comprising a rail inspection beam, an acceleration sensor and a pressure sensor. The rail detection beam stretches across the vehicle bottom, and a laser 2D sensor, a camera and a data collector are integrated on the rail detection beam. The acceleration sensor is mounted at the bottom of the collector shoe carbon slide plate; the pressure sensor is installed between the current collector body and the collector shoe carbon slide plate. Detection equipment such as a laser 2D sensor, a camera and a data collector is integrated through the rail detection beam, the complexity of installing the detection equipment under a vehicle is simplified, and the purpose of dynamically detecting the contact rail is achieved. And the pressure sensor, the acceleration sensor and other equipment are mounted on the under-vehicle current collector, so that the detection of the rail detection beam can be corrected, and the detection precision can be improved. Workers do not need to frequently carry out squatting operation, the labor intensity is reduced, the detection efficiency is improved, the geometric state parameter change of the contact rail can be mastered in real time, and the digitization degree is improved.

To provide a contactless electric power transmission system capable of performing appropriate power transmission by independent communication control and power control on the power reception side.SOLUTION: A contactless electric power transmission system 1 comprises an electric power reception device 4 and a controller 17. The electric power reception device 4 receives electric power transmitted contactlessly between itself and an electric power transmission device 2. In a coupling section in which a degree of coupling between a primary side coil of the electric power transmission device 2 and a secondary side coil of the electric power reception device 4 is equal to or larger than a predetermined degree, the controller 17 sets communication sections in which the degree of coupling is relatively small and electric power transmission sections in which the degree of coupling is relatively large. When the secondary side coil exists in the first communication section of the coupling section, the controller 17 transmits information on electric power transmission in the electric power transmission section from the electric power reception device 4 to the electric power transmission device 2 by using communication between the electric power transmission device 2 and the electric power reception device 4.SELECTED DRAWING: Figure 1

This power supply device is provided with: a power supply line that is disposed along a movement path of a plurality of moving bodies and that supplies power to the plurality of moving bodies; a power supply device connected to the power supply line and supplying power to the power supply line; and a control system that controls the power supply device. A control system is provided with: a moving body number information acquisition unit that acquires moving body number information indicating the number of moving bodies in a power supply region, which is a region in which a power supply line is disposed in a movement path; and a control execution unit that executes supply power variable control for reducing power supplied from the power supply device to the power supply line in accordance with a decrease in the number of moving bodies in the power supply area on the basis of the number of moving bodies information. Power supplied from the power supply device to the power supply line is increased in response to an increase in the number of moving bodies in the power supply area.

A method and a device for diagnosing a defect in a pantograph of a railway vehicle and calculating its remaining service life are disclosed. The method may include setting a status value for diagnosing the pantograph, building a database with indexes for diagnosing the pantograph, comparing a detected index with a reference index, and storing a defect code of the pantograph if the detected index is greater than the reference index in the database.The status value can refer to the pressure of an actuator when the pantograph is raised before the rail vehicle is in motion, to the actuator pressure while the rail vehicle is in motion, to the number of arcing occurrences or the duration of arcing events while the rail vehicle is in motion, to an insulation resistance while the rail vehicle is in motion, or to the wear amount of a main wear slider. Furthermore, the device configured to carry out the method is disclosed.

An example of a sliding contact strip capable of suppressing frequent arc discharges is disclosed. [Solution] The sliding contact strip 1 is provided with an insulating portion 4 on the sliding contact surface 3 that has a higher electrical resistance than the conductive portion (parts other than the insulating portion 4), and the insulating portion 4 is provided only on a portion of the sliding contact surface 3 in the width direction. Therefore, the occurrence of arc discharge between the trolley wire and the insulating portion 4 can be suppressed, and even if arc discharge occurs between the trolley wire and the conductive portion 5, the continuous and frequent occurrence of such arc discharge can be suppressed. Consequently, premature damage to the sliding contact strip 1 can be suppressed.

The present application relates to the technical field of rail vehicles, and provides a traction power system for a variable formation train and a variable formation train. The traction power system comprises two fixed traction power units and N variable traction power units (2), the fixed traction power units are arranged on a leading car, and the variable traction power units (2) are arranged on intermediate cars. A train formation can be adjusted according to the requirements of different operational scenarios, rapidly achieving transitions between different formation forms of a train, greatly improving the flexibility of the train formation, and achieving the optimal train performance utilization. In addition, the fixed traction power units and the variable traction power units (2) exhibit high independence, the transitions between different formation forms are convenient, the train variable formation operation efficiency is improved; and the power redundancy is high, and the starting acceleration requirement of a user for a suburban train can be well met.

The invention discloses a side current collecting device suitable for a medium-low-speed magnetic levitation vehicle, and belongs to the technical field of medium-low-speed magnetic levitation, the side current collecting device comprises a mounting frame and a corbel mechanism, the mounting frame can be fixed on the side of a bogie, and the mounting frame is provided with at least one vertical mounting surface extending in the longitudinal direction; the supporting arm mechanism comprises an insulating plate and an elastic supporting arm capable of deforming in the transverse direction. The insulating plate is fixedly mounted on the mounting surface, one end of the elastic supporting arm is fixedly mounted on the insulating plate, and a sliding shoe is arranged at the other end of the elastic supporting arm and used for driving the sliding shoe to abut against the contact rail during contact power supply; a cable connecting support lug is arranged on the sliding shoe and used for being fixedly connected with a power supply cable of the magnetic levitation vehicle. According to the side current collection device suitable for the medium-low-speed magnetic levitation vehicle, stable and safe power supply can be provided for the magnetic levitation vehicle, meanwhile, the vertical distance between the bottom of a track beam and the bottom face of a contact rail is remarkably reduced, and then the construction cost of a magnetic levitation track is greatly reduced.

To make compatible safety and efficiency in restarting a power transmission process after power failure by making clear a restarting method of a road-side power supply apparatus after recovery from a disaster in a case where the disaster occurs.SOLUTION: A system for non-contact power supply during traveling supplies power in a non-contact manner from a power transmission device in a road-side power supply apparatus to a traveling vehicle on which a vehicle-side power reception apparatus is mounted. The road-side power supply apparatus comprises: a first communication unit capable of executing a wide-range radio communication with the vehicle-side power reception apparatus; a second communication unit capable of executing a narrow-range radio communication with the vehicle-side power reception apparatus; a power transmission control section which controls the power transmission device; and an abnormality determination section capable of determining occurrence of an abnormality. When a disaster is determined, the abnormality determination section turns on a disaster flag and notifies the power transmission control section of it. The power transmission control section stops a power supply operation by the transmission device in a case where it is determined that the disaster flag is turned on, and causes the road-side power supply apparatus to execute a predetermined operation in a case where it is determined that the disaster flag is turned off.SELECTED DRAWING: Figure 9

The invention relates to a current collector (3) for an electric or hybrid electric drive road vehicle (1) for feeding traction energy from a bipolar overhead line system. The invention relates to a road vehicle (1), comprising an erectable support rod (6) which is rotatably supported on the vehicle side by means of a base joint (7) on the road vehicle (1) and which supports, on the contact line side, two contact pivots (11) which are each rotatably connected by means of a pivot joint (10). At least one sliding plate (15) extending in the vehicle transverse direction (Y) is elastically supported on each contact swing arm (11). Wherein each slide plate (15) has, in each case, a contact surface (16), which faces upward in the vehicle height direction (Z), for sliding contact with the contact line (4). According to the invention, an electrically conductive, flexurally elastic sheet-like structure (19) having a longitudinal extension (L) and a transverse extension (B) is provided on at least one slide plate (15) of each contact swing arm (11), said sheet-like structure being arranged such that the longitudinal extension (L) thereof extends along the slide plate (15) in the vehicle transverse direction (Y), and the transverse extension (B) of the guide rail extends upwards beyond the contact surface (16) in the height direction (Z) of the vehicle by an overlength (S). This provides a current collector (1) which generates less arcs and thus has higher usability.

Provided in the present application are a dual-current vehicle power supply conversion system and method, and a vehicle and a storage medium, which are used for power supply conversion of a dual-current vehicle between a suburban railway and an urban rail. The system comprises: a detection unit, a conversion unit, a power supply unit and a central control unit, wherein the detection unit comprises a beacon detection module, a vehicle speed measurement module, a vehicle traveling time detection module and a vehicle power supply mode detection module; and the central control unit comprises an operation module, a first determination module, a second determination module and a storage module, the operation module being used for calculating a vehicle traveling mileage, the first determination module being used for determining whether a vehicle successfully detects each beacon, the second determination module being used for determining whether the vehicle reaches each beacon, and the storage module being used for storing distance information between two adjacent beacons and a beacon level classification mode. In the present application, level classification is performed on beacons in a conversion area, and the vehicle executes corresponding actions at beacons of different levels, thereby improving the reliability of alternating-current / direct-current power supply conversion for dual-current vehicles.

The application discloses a pantograph head device and a railway vehicle, and relates to the technical field of rail transit. The pantograph head device comprises a single-slipper head, the inner side of the single-slipper head is provided with a first connecting assembly and a second connecting assembly; two spring cylinders are symmetrically arranged about the middle section of the single-slipper head, one of the two spring cylinders is connected to the single-slipper head through the first connecting assembly, and the other of the two spring cylinders is connected to the single-slipper head through the second connecting assembly; and a connecting shaft is used for fixedly connecting the two spring cylinders, and the length direction of the two spring cylinders is perpendicular to the extension direction of the single-slipper head. The pantograph head device provided by the application can effectively reduce the wind resistance and the mass of the head; in addition, the two spring cylinders are symmetrically arranged about the middle section of the single-slipper head, the airflow flows along the length direction of the spring cylinders, so that the structure of the pantograph head device is compact, and the layout is more reasonable.

The invention discloses new energy automobile battery pack conveying equipment with a rotating mechanism, and belongs to the technical field of new energy automobile battery pack conveying. The new energy automobile battery pack conveying equipment comprises a base and two vertically arranged supporting frames, guide rails are fixedly mounted at the tops of the supporting frames, the rotating mechanism is arranged at the top of the base, and a connecting and guiding mechanism is arranged outside the supporting frames; a power supply mechanism is arranged in the swing mechanism and extends out of the swing mechanism. A first motor drives a gear to be meshed with a gear ring to drive a rotary cylinder and a rotary table to rotate integrally, the AGV can complete 90-degree steering at a fixed station, a first hydraulic rod can lift the rotary table and the AGV, interference with a guide rail in the steering process is avoided, a second hydraulic rod drives a positioning plate to lock moving wheels on the two sides, the AGV is prevented from moving in the steering process, and the AGV can be conveniently and rapidly steered. In the locking state, an encoder of the AGV can be calibrated with a mechanical positioning reference, and it is ensured that the AGV can still run continuously in a high-precision state after steering every time.

A wireless power reception system 1 includes: a power reception device 5 including a power reception coil 51 that receives power supplied wirelessly from a power transmission coil 41 of a power transmission device 4 installed in a road surface, at least a portion of the power reception coil 51 being housed in a wheel 3 of a moving body 2; and an onboard device 6 which is installed in the moving body 2 and which is electrically connected to the power reception device 5, wherein the power reception device 5 can transmit received power to the onboard device 6, and the power reception coil 51 has a convex shape pointing downward in a side view as seen from an axial direction of the wheel 3.