131results about How to "Stable power delivery" patented technology

A power transmitter 50 is usable in a wireless power transmission system for transmitting power wirelessly. The power transmitter 50 includes a power transmitting section 51 for transmitting power; a communication section 52 for communicating information, for controlling the transmission of the power, with the power receiver 60; and a control section 53 for controlling the power transmitting section 51 such that the power to be sent out by the power transmitting section 51 is higher while the communication section 52 is performing the communication.

The invention discloses an electricity consumption intelligent prediction system and method, wherein the system comprises an intelligent electricity consumption terminal (1) as well as an electric energy collecting module (2) used for managing real-time data collection, a local storage management module (3), a predication point prediction value analyzing and calculating module (4) and a GPRS (general packet radio service) communication control module (5) which are respectively connected with the intelligent electricity consumption terminal (1), wherein the GPRS communication control module (5) is in charge of communication transmission control; and a core prediction processing algorithm of the predication point prediction value analyzing and calculating module (4) adopts a BP (back propogation) neural network. According to the invention, users can be informed of the electricity consumption situation in advance, and effective electricity consumption optimization suggests are provided for the users by combining with the electricity consumption optimization algorithm, the electricity consumption habits of users are improved, unnecessary electricity expenditure of electric appliances of the users is avoided, and electricity expense is saved for the users economically; and the power grid fluctuation caused by electricity consumption in peak time for the users can also be lowered, thus a power grid is more stable, more stable electricity power conveying is provided, the electricity consumption quality of residents is improved, and the production of enterprise electricity power users of production, manufacturing and the like operates stably.

A high-speed fluidic device has a friction roller type speed-increasing mechanism, an electric motor, and a high-speed fluidic machine, wherein: the friction roller type speed-increasing mechanism includes a housing, a low-speed side member having an outer ring provided at one end portion thereof, a high-speed side shaft rotatably supported by the housing so as to be eccentric to the low-speed side member and the outer ring, at least one guide roller rotatably supported between the outer ring and the high-speed side shaft, and at least one movable roller rotatably supported between the outer ring and the high-speed side shaft; the electric motor drives the friction roller type speed-increasing mechanism; and the high-speed fluidic machine is connected to the high-speed side shaft so as to be driven by the high-speed side shaft.

A variable steering gear mechanism (9) is constructed of an external gear (15) connected to an input shaft (11), an internal gear (16) fixed to housing (10) and meshing with the external gear (15), an intermediate member (19) receiving a rotary force transmitted from the external gear (15), change means (18a, 31, 33a) capable of changing a rotation ratio of the output shaft (33) to a rotation of a guide member (18), and an Oldham coupling (17) connecting the intermediate member (19) to the guide member (18). When a speed reduction ratio thereof is set to, e.g., 6:1, it follows that the input member (18) of the change means makes a ¼ rotation (rotates through 90 degrees) during one-sided 1.5 rotations (540 degrees) of the input shaft (11), whereby a characteristic of the change means can be effectively utilized. A gear mechanism such as a hypocycloid mechanism has a characteristic capable of, though compact in configuration, obtaining a speed reduction ratio as large as 6:1, and also such a characteristic that the external gear (15), in addition to the self-rotation, revolves around the axis line of the internal gear (16), i.e., rotates while being eccentric. By contrast, according to the present invention, the use of the Oldham coupling (17) enables only the self-rotation to be extracted and transmitted by absorbing the eccentricity of the external gear (15). Additionally, a meshing length between the external gear (15) and the internal gear (16) becomes large, whereby smoother power transmission can be attained.

A contactless power transmission device is provided with an AC power source, a primary coil, a secondary coil, an electric component and a power factor calculation unit. The primary coil is supplied with AC power from the AC power source. The secondary coil is allowed to receive AC power from the primary coil. The electric component is supplied with the AC power that is received by the secondary coil. The power factor calculation unit calculates at least either the power factor with respect to the load from the output of the AC power source to the electric component, or the power factor with respect to the load from the output of the secondary coil to the electric component.

The invention discloses a backfill type stir friction spot welding device, and relates to the technical field of stir friction welding. A jacket is fixed at the lower end part of an outer shell; an arm cover is arranged in the jacket; a stirring needle is arranged in the arm cover; a hollow shaft motor is provided; a hollow arm cover shaft is arranged in the hollow shaft motor; a stirring needle shaft is arranged in the arm cover shaft; the arm cover shaft is connected with the arm cover; the stirring needle shaft is connected with the stirring needle; a first ball screw with a screw rod as a hollow screw rod is arranged above the arm cover shaft; the stirring needle shaft is inserted in the screw rod of the first ball screw; a first bearing frame is arranged at the lower end of the screw rod of the first ball screw; the upper end part of the arm cover shaft is mounted on the first bearing frame; a second ball screw is arranged above the stirring needle shaft; a second bearing frame is arranged at the lower end of a screw rod of the second ball screw; the upper end part of the stirring needle shaft is mounted on the second bearing frame; and a first power source and a second power source are respectively connected with nuts of two lead screws. The backfill type stir friction spot welding device has such advantages as simple structure, high system stability, high welding precision, good effect and long service life.

The invention relates to an oil-feed pump for a robot. The oil-feed pump comprises a machine frame, an oil storage mechanism and a bevel gear table, wherein the oil storage mechanism comprises an oilstorage tank provided with scale marks, a first piston is slidably connected in the oil storage tank, a threaded rod is rotationally connected to the first piston, the threaded rod is sleeved with a nut through threads, one side of the oil storage tank communicates with a cache box through an oil guide pipe, and the lower part of the cache box communicates with an oil supply pipe; an oil filling tank is fixedly connected to the bevel gear table, the other end of the oil supply pipe communicates with the oil filling tank, a second piston is slidably connected in the oil filling tank, the secondpiston is rotationally connected with a piston rod, and the piston rod is connected with a driving mechanism; the lower part of the oil filling tank communicates with an oil filling pipe, the other end of the oil filling pipe is movably connected with an oil filling disc, and an oil injecting pipe communicates with the oil filling disc; and the bevel gear table is meshed with a first bevel gear,the first bevel gear is coaxially and fixedly connected with a connecting shaft, and the other end of the connecting shaft is coaxially and fixedly connected with a rotating disc. According to the oil-feed pump for the robot, the problem that the lubricating effect of the robot is affected due to the fact that lubricating oil in an existing oil injecting machine is prone to oxidization is solved.

The present invention relates to a transmission apparatus (15) including at least one of a dividing unit (6) and a differential planetary gear unit (30), and a joint unit (20). A rotational power, which has been input to the transmission apparatus (15), is transmitted to the joint unit (20) via the dividing unit (6) or the differential planetary gear unit (30). A rotational power to be input to the joint unit (20) is smaller than the rotational power which has been input to the transmission apparatus (15), and the joint unit comprises a fluid coupling.

The invention discloses a feeding conveying device of ring bobbin. The device comprises a bracket and a conveying belt arranged on the bracket, a plurality of storage cases are uniformly arranged on the periphery surface of the conveying belt, and the ring bobbin is arranged in one of the storage cases and is of a circular truncated cone structure; a hopper is arranged on the portion, located above the conveying belt, of the bracket, a first air cylinder is arranged on one side of the conveying belt, and the output end of the first air cylinder is aligned with the ring bobbin; a second air cylinder is arranged on the other side of the conveying belt, a revolving turntable is arranged between the second air cylinder and the conveying belt, and a groove is formed in the top of the revolvingturntable in the diameter direction of the revolving turntable; two opening ends of the groove are respectively aligned with the output end of the second air cylinder and the ring bobbin, and a revolving air cylinder is arranged at the bottom of the revolving turntable; a metal ring sleeves the large diameter end of the ring bobbin, and metal sensors are arranged on the portions, located on the two sides of each storage case, of the bracket. The design of the device not only reduces the labor intensity of residual yarn cleaning but also improves the efficiency of cleaning residual yarns away.

The invention discloses a lightweight backfill-type friction stir spot welding device, and relates to a friction stir welding device. The device comprises an outer shell, a stirring needle, a sleeve and a jacket; the outer shell is internally provided with a transmission lead screw, and the transmission lead screw is a hollow two-way lead screw, wherein the ratio of the screw pitch of the upper portion to the screw pitch of the lower portion is equal to the inverse ratio of the cross-sectional area of the sleeve to the cross-sectional area of the stirring needle; an upper nut of the transmission lead screw is connected with the sleeve through a sleeve cylinder, bearings, a first bearing frame and a sleeve rolling spline nut; a stirring needle shaft capable of freely sliding in the transmission lead screw up and down and cooperating with the sleeve rolling spline nut is installed on a lower nut of the transmission lead screw through a second bearing frame and the bearings, and the lowerend of the stirring needle shaft is connected with the stirring needle; the device is provided with a transmission shaft sleeve in spline connection with the upper end of the stirring needle shaft, afirst power source and a second power source are arranged, the first power source is connected with the transmission shaft sleeve, and the second power sources is connected with the transmission leadscrew. The device has the advantages of light structure, high system stability and welding precision, good effect and long service life.

The invention provides a double-side T-S compensation topology and parameter matching method for wireless electric energy transmission, and the method employs a scheme that the method employs an inverter, a first T-shaped structure, a receiving and transmitting module, a second T-shaped structure and a rectifier, wherein the inverter, the first T-shaped structure, the receiving and transmitting module, the second T-shaped structure and the rectifier are connected sequentially; the inverter is connected to a DC power output end, and is used for inverting a direct current into an alternating current and transmitting the alternating current to the first T-shaped structure; the first T-shaped structure is used for obtaining a stable current and stabilizing the transmission power of a transmitting end; the receiving and transmitting module is used for transmitting the inverted alternating current to the second T-shaped structure in a wireless mode; the second T-shaped structure is used for obtaining a stable current and stabilizing the transmission power of a receiving end; and the rectifier is used for carrying out the rectification processing of the alternating current of the receiving end and outputting a corresponding direct current. The method solves problems of transmission power level and power transmission stability well; achieves the purposes that a current of a primary coil and an output current are stable and do not change with a load; and achieves a purpose that the resonant frequency is independent of the load and the distance of primary and secondary coils through parameter matching.

A CVVL system including a self-locking helical gear pair with, optionally, a transmission to increase output torque of the actuator. The self-locking helical gear pair provides high forward efficiency and a fully mechanically self-locking feature. The actuator therefore requires a smaller motor to perform the same actuation as a prior art worm-gear system. The CVVL system comprises two helical gears having a radial pressure angle {acute over (α)} between 45° and 75° and a helix angle β between 60° and 80°. An asymmetric tooth profile is presently preferred, reducing contact stress and permitting higher torque density. Preferably, the helical gears are discontinuous and comprise laminated spur gear slices and hence are less costly to produce than continuous helical gears. Configurations are possible within the scope of the present invention include a single stage gear system; a multiple stage gear system; a planetary gear system; and an internal or external gear system.

The invention relates to the field of circuit breakers, in particular to a single modularization circuit breaker. The single modularization circuit breaker comprises a switch-on mechanism, a switch-off mechanism and an energy storage mechanism, wherein the energy storage mechanism comprises an energy storage spring and a driving device; the driving device drives the energy storage spring to storeenergy by means of a transmission assembly; the energy storage spring and the transmission assembly are arranged at one side of a wall board; the switch-on mechanism and the switch-off mechanism are sequentially arranged at the other side of the wall board and form a module main body; the driving device is positioned above the switch-off mechanism. The single modularization circuit breaker solvesthe problems that in the prior art, the circuit breakers are large in volume and more in structural modules.

The invention provides a one-way LLC resonant converter, a frequency conversion control method thereof, an IPOS DC converter and a one-way LLC resonant converter, and is characterized in that the one-way LLC resonant converter comprises a low-voltage side converter, a resonant module, a high-frequency transformer and a high-voltage side converter which are connected in sequence; and the input endof the low-voltage side converter is connected with the output end of a preceding-stage converter, and the output end of the high-voltage side converter is connected with a direct-current power grid.According to the invention, the transformation ratio of the high-frequency transformer can be greatly reduced, the design difficulty of the one-way LLC resonant converter is reduced, the stability ofthe output side voltage and the input side voltage of the IPOS direct-current converter is ensured, the safe and stable operation of the IPOS direct-current converter is ensured, the reliability is high, and the energy loss is reduced.

The invention discloses a management method for connecting distributed power supplies and a micro grid to a main power grid. The management method comprises the steps of power grid demand response or daily scheduling; response to demands; strategy making which comprises the steps of simulating a simulation micro grid system, performing parameter adjustment of each micro power supply device of the micro grid, responding to a parameter influence table according to a parameter adjustment value, obtaining power generation prediction according to a matching algorithm, obtaining economic benefit brought by parameter adjustment by combination with information such as electricity price, adjusting parameters according to results, finally obtaining a reasonable maximum benefit model, and forming a corresponding strategy; scheduling process approval; and strategy execution. The demand response, a scheduling process and a micro grid strategy form a closed loop, power supply reliability is improved, the uniform scheduling process during power grid demand response execution at power utilization rush hours is solved, stability and controllability of power transmission between the distributed power supplies and the micro grid and between the micro grid and the main power grid and coordinated control between a plurality of distributed power supplies are guaranteed, and united strategy control is performed on integral running of the micro grid.

Disclosed herein is a wireless power transmission device includes a power transmitting transformer coupled between a power transmitting circuit and a power receiving circuit, and a signal transmitting transformer coupled between a signal generating circuit provided at the power receiving circuit side and a control circuit provided at the power transmitting circuit side. The frequency of an AC signal transmitted by the signal transmitting transformer is equal to or more than ten times the frequency of an AC voltage transmitted by the power transmitting transformer. The signal generating circuit converts the magnitude of the output voltage or output current of the power receiving circuit into a magnitude of an amplitude of the AC signal.

Disclosed in the present application is a wireless power receiver comprising: a power pickup unit configured to receive, in a power transfer phase, wireless power generated by magnetic coupling from a wireless power transmitter; and a communications/control unit configured to transfer, in a negotiation phase, a first end-of-power-transfer (EPT) packet to the wireless power transmitter for detecting an RFID/NFC card, and to detect the RFID/NFC card during a re-ping time secured on the basis of the first EPT packet, wherein the first EPT packet instructs requesting the removal of a power signal for a predetermined time. As the process for detecting communication cards, such as RFID or NFC, between the wireless power transmitter and receiver is clearly defined, such RFID/NFC cards can be protected against getting destroyed by the wireless power, and a stable wireless power transfer can be achieved.