101results about How to "Easy to parallel" patented technology

A sculptable, decorative light system includes a number of modules of differing lengths which can respond to commands either in parallel or time delay to create pre-selected light colors and sequences. Three miniature connectors are used to create a direct current fed system which has the potential to even out a current demand. Interconnectable lamp modules are provided in sets of 1, 2, 3, 4, and more lengths to create decorative light displays. Each lamp module or string of modules may include a male/plug end and a female/receptacle end.

A solar cell extrusion printing system includes a printhead assembly having one or more elongated valve structures that are adjustably disposed adjacent to the outlet orifices of selected nozzle channels, and a valve control device for controlling the position of the valve structures to facilitate controllable ink flow through selected nozzle channels of the printhead assembly during the gridline printing process. The printhead assembly defines an elongated opening (e.g., a slot or hole) that that intersects (i.e., passes through) each of the selected nozzle channels, and an elongated member is movably disposed in the slot and is selectively movable between a first (opened) position, in which the valve structure extrusion material is passed by the valve structure through the nozzle channel and out of the printhead, and a closed position, in which the extrusion material is blocked by the valve structure and prevented from passing through the nozzle channel.

The invention discloses an active tuning type hybrid filter, which is characterized in that the output of an APF (active power filter) is directly connected with two ends of a filter reactor L of a PPF (passive power filter) in parallel (or by a coupling transformer in parallel). The invention also discloses a control method of active tuning, which comprises the following steps by using the hybrid filter: connecting a branch with a linear load required to filter in parallel; obtaining each single harmonic current component to be filtered by detecting a harmonic current; comparing a condenser voltage with a reactor voltage and then carrying out PI adjustment so as to obtain the detuning degree under the condition of the frequency of harmonic to be filtered; generating the detuning degree into a harmonic compensating current weighting coefficient; forming a harmonic compensating current command; generating an active current command of fundamental waves; summing to obtain a command current of the APF; and generating a PWM (pulse-width modulation) drive signal after the command current and an actually-output current signal are subjected to PWM generation and drive. The method is remarkable, safe and reliable.

The invention relates to a fast recovery diode and a manufacturing method thereof. The diode comprises a substrate and a P+ region. The P+ region is formed on the substrate, and forms a PN junction together with the substrate, wherein the substrate is the cathode of the diode, and the P+ region is the anode of the diode. Hydrogen or helium is injected into the surface of the anode P+ region to form a local service life control layer. The fast recovery diode provided by the invention has the characteristic of fast and soft recovery. Because of existence of the local service life control layer, the fast recovery diode does not need too many global composite centers, electric leakage of the device is reduced, and the avalanche tolerance of the device is improved. Through electron irradiation and platinum doping, a device with a minor positive temperature coefficient of forward voltage drop is realized, and parallel connection is facilitated. Structures and doping of the diode anode and diode cathode can be adjusted. Forward surging and dynamic avalanche resistance are improved.

The disclosure of the invention provides a device and a method for detecting the cell size and the electrical parameter of a unicell irrelevant to size at the high throughput. The device comprises a micro-fluidic chip comprising a main compression channel, an auxiliary compression channel, electrodes, an impedance measurement module and a data processing module; the cross sectional area of the main compression channel is less than the cross sectional area of the cell, so that the cell stretches and flows along the main compression channel; the auxiliary compression channel and the main compression channel are crossed and communicated, the cross sectional area of the auxiliary compression channel is less than the cross sectional area of the side edge of the stretched cell; the electrodes are respectively arranged at the two ends of the auxiliary compression channel, and an electric conduction channel is formed between the two electrodes; the impedance measurement module is connected with the wo electrodes and measures the impedance data of the two electrodes when the cell flows by the cross position of the main compression channel and the auxiliary compression channel; the data processing module is connected with the impedance measurement module, and the cell size and the electrical parameter of the unicell irrelevant to size are calculated according to the acquired impedance data. The method for detecting by using the device is further provided. The disclosure achieves the high-throughput detection of the above parameter, and the peak detection throughput is up to 100 cellsper second.

Foldable table that is easy to handle is described, which is provided for use by a plurality of people but do not require a plurality of people when it is folded. The table can be unfolded and be folded in a fast and simple way, and can be provided with a parasol, wherein the table and the parasol can be unfolded simultaneously. The foldable table comprises a first and a second table-top section (2a, b), two leg supports (4a, 4b) and a-guide rod (3), the at least two leg supports (4a, 4b) are arranged on opposing sides of the guiding rod (3) and each of the first and the second table-top sections-(2a, 2b) extends between the guiding rod (3) and a respective one of the leg supports (4a, 4b), so that the table can take a folded as well as an unfolded position wherein the table rests on the leg supports with the guide rod lifted vertically upwards in relation to the leg supports and with the table-top sections extending vertically between the guiding rod and the respective one of the leg supports, and an unfolded position wherein the table rests on the leg supports (4a, 4b) and have the table-top sections extending horizontally between the guiding rod and the respective one of the leg supports.

The invention provides a bidirectional DC-DC topological structure, and a bidirectional DC-DC converter based on the structure. The converter comprises a coupling inductor L, a transformer T and switching tubes Q1, Q2 and Q3, and diodes D1, D2, D3 and D4, wherein the two windings Lc1 and Lc2 of the inductor L have the same turn ratio, the inductance value is Lc, and the two windings of the transformer also have the same turn ratio. The bidirectional DC-DC converter can be applied to a PCU to be used as a BCDR and also can be applied to the fields of all batteries and capacitors and the like which need charging and charging, wherein the converter has four working states: a discharging working state, a state switched from the discharging state to the charging state, a charging working state, and a state switched from the charging state to the discharging state; the numerical models in the forward and reverse directions of the bidirectional topology are both second-order minimum phase systems, so that the bidirectional converter can be subjected to parallel control easily; and the bidirectional converter shares the same coupling inductor in the charging and discharging process, and the second-order minimum phase systems and the shared same coupling inductor act together, so that the bidirectional converter has energy bidirectional high-frequency switching ability.

To provide an exhaust device for a motorcycle for suppressing an exhaust resistance due to the thickness of an exhaust control valve. An exhaust device for a motorcycle is provided for an engine having a plurality of cylinders. A plurality of upstream exhaust pipes are respectively connected to exhaust ports for the cylinders with an exhaust control valve provided in the downstream exhaust pipe. A separator is provided in the exhaust manifold portion for separating the flows of exhaust gas. The exhaust control valve is located on the downstream side of the separator so that a main surface of the exhaust control valve in its fully open condition becomes substantially parallel to a main surface of the separator.

The invention discloses a modularized structure of a three-level converter. The three-level converter comprises three single-phase three-level circuits which are linked in parallel. Each single-phase three-level circuit comprises a first insulated gate bipolar transistor (IGBT), a second IGBT, a third IGBT, a fourth IGBT, a first clamping diode and a second clamping diode, wherein the first IGBT, the second IGBT, the third IGBT and the fourth IGBT are fixed on the surface of a water-cooling substrate with a water channel inside. Connection wires of the level circuits are simple through reasonable and symmetric layout and current circuits are reduced to the outmost so that stray inductance of a high-frequency circuit is little in exchanging currents and voltage impact is reduced when the IGBTs are cut off. Meanwhile, the modularized structure of the three-level converter fully takes heat difference of IGBTs of the three-level converters and convenience of water channel design into consideration and a radiating effect of a system is stable.

The invention relates to a control system for hybrid energy storage of a storage battery and a super capacitor. The system comprises an administrator login module and a monitoring module, wherein theadministrator login module is electrically connected with an operation control panel; the operation control panel is electrically connected with a monitoring information acquisition module; the monitoring module is electrically connected with the super capacitor energy storage module; the super capacitor energy storage module is electrically connected with a storage battery capacitor relay controlmodule and the super capacitor; and the monitoring module is electrically connected with the storage battery energy storage module. The control system for hybrid energy storage of the storage batteryand the super capacitor has the beneficial effects that, by disposing the monitoring module, information acquisition can be performed on the monitoring module through the monitoring information acquisition module, thereby facilitating acquisition of various information parameters in the super capacitor energy storage module and the storage battery energy storage module and facilitating monitoringof the system.

The invention provides a battery module and a welding system and relates to the technical field of battery modules. The battery module comprises a plurality of battery cells, a battery cover, a first current collector plate and a second current collector plate, wherein the battery cover and the first current collector plate are matched with the battery cells; the battery cover is arranged at two ends of the battery cells in a sleeving manner; the first current collector plate is contacted with a conductive part of the battery cover so as to converge current of the battery cells; the second current collector plate is welded on the first current collector plate to form a wiring terminal of the battery module used for outputting electric energy. Due to the battery cover and the first current collector plate, the battery cells are conveniently connected in parallel or series so as to form a battery pack. A hollow gap is formed in the second current collector plate, so that welding current can be centralized, the welding time is further shortened, and the welding efficiency is improved.

The invention discloses a converter device used for performing driving control on an electric vehicle, wherein the converter device is good in cooling effect, small in volume, high in conducting capacity and high in reliability. The converter device comprises a cooling base plate and three bridge arms arranged on the cooling base plate in parallel; each bridge arm comprises an upper bridge arm, a lower bridge arm, a driving circuit board, a cathode copper bar plate and an electrolytic capacitor; an upper bridge arm metal bar and a lower bridge arm metal bar of each bridge arm are fixed on the cooling base plate; the lower surfaces of the upper bridge arm metal bar and the lower bridge arm metal bar are respectively adhered to the upper surface of the cooling base plate through a conduction insulating pad; the lower surfaces of metal outer housings of all upper bridge arm MOS (Metal Oxide Semiconductor) tubes and lower bridge arm MOS tubes are respectively adhered to the upper surfaces of the upper bridge arm metal bar and the lower bridge arm metal bar; three pins of each upper bridge arm MOS tube all face to the lower bridge arm metal bar; all lower bridge arm MOS tubes are staggered with the opposite upper bridge arm MOS tubes at an effective interval L and arranged on the lower bridge arm metal bar; three pins of each lower bridge arm MOS tube all face to the upper bridge arm metal bar.

The invention discloses a DC bus current control system of a doubly-fed motor variable-frequency speed regulating system. The DC bus current control system has high steady-state performance, and reduces the DC current of the speed regulating system without changing the power factor of the power grid, so as to increase the service life of the speed regulating system. The DC bus current control system comprises a motor-side converter, a grid-side converter, a motor-side filter, a grid-side filter and a DC inductor. The motor-side filter is connected between the control winding of a doubly-fed motor and the motor-side converter. The grid-side filter is connected between a three-phase AC power supply and the grid-side converter. The motor-side converter and the grid-side converter are connected with each other, and the DC inductor is connected between the motor-side emitter of the motor-side converter and the grid-side collector of the grid-side converter. The power winding of the doubly-fed motor is connected to the three-phase AC power supply. The method includes the following steps: the control winding of the doubly-fed motor provides excitation to reduce the motor-side current andincrease the grid-side current; and a controller makes the motor-side current equal to the grid-side current.

The invention discloses an energy-storage lithium battery parallel-connection capacity-expansion circuit. The energy-storage lithium battery parallel-connection capacity-expansion circuit comprises more than two battery pack units, wherein the anode output end and the cathode output end of each battery pack unit are respectively connected in parallel; each battery pack unit internally comprises a battery pack N1 and a single chip microcomputer M1; a switch S1 and a current limiting resistor R1 are serially connected in sequence between the cathode of the battery pack N1 and a node between the cathodes of one battery pack N1 and the corresponding battery pack unit; a switch S2 is connected in parallel with two ends of a series circuit of one switch S1 and the corresponding current limiting resistor R1; one switch S1 and the corresponding switch S2 are connected with a control port of the corresponding single chip microcomputer M1 and controls the disconnection and closing work of the corresponding single chip microcomputer M1; the battery pack units are communicated and controlled by a communication bus of the single chip microcomputers. The invention also discloses an energy-storage lithium battery parallel-connection capacity-expansion method. The energy-storage lithium battery parallel-connection capacity-expansion circuit has the advantages of being large in energy storage capacity, stable in balance of initial voltage between two battery packs, simple in structure, low in cost, capable of improving the safety and the stability of the lithium battery packs; the energy-storage lithium battery parallel-connection capacity-expansion circuit has a wide application prospect.

The invention relates to an axial leading-out double-pole-plate coiling pulse formation line, and belongs to the technical field of pulse power. A pulse formation line body is formed by coiling two pole plates and two medium layers in an Archimedes spiral manner, the high-voltage pole plate, inner-side insulating media, the low-voltage pole plate and outer-side insulating media are arranged successively from inside to outside, and the positions of the high-voltage pole plate and the low-voltage pole plate can be interchanged; and the high-voltage pole plate, inner-side insulating media, low-voltage pole plate and outer-side insulating media are coiled for n rounds in the Archimedes spiral manner, the first round of the high-voltage pole plate and the first round of the low-voltage pole plate are led out in the axial two sides via a high-voltage leading-out foil and a low-voltage leading-out foil respectively, and the pulse formation line composed of an axial leading-out structure and n-a rounds of complete band-shaped wires is formed. The coiling pulse formation line is high in quality of output waveforms, and is simpler in structure compared with a three-pole-plate coiling band-shaped line.

The invention provides a high-energy-density soft-pack battery module, which comprises a battery module and a box body. The battery module is formed by tightly combined a plurality of cells and a middle frame among the cells, the battery module is pressed and strengthened by the box body, and the cells and the middle frame are connected in series through a connecting row; two transverse pole columns are arranged at the top of the middle frame; the box body is formed by fixedly connecting two end plates and four pressing strips, and an insulating plate is arranged between the battery core and the end plate; the coupling row is connected with the general row at the position of the end plate, and the coupling row is connected with an FPC board. The invention realizes threadless connection, eliminating the risk of easy loosening of threaded joints; the FPC board is used for collecting voltage and temperature, which saves the cost and space of battery module. The performance is stable, safeand reliable. The main components are lightweight designed, which greatly reduces the weight of module and realizes the requirement of high energy density of module. The volume energy density of thewhole battery module system is increased by 15%.