93results about How to "Reduce electrical loss" patented technology

The invention provides a handheld terminal. The handheld terminal comprises a first connector and a second connector which are arranged in a handheld terminal battery jar. The first connector is connected to a charging interface of the handheld terminal through a handheld terminal main board, a flexible circuit board and a handheld terminal small board in sequence. The second connector is connected to the charging interface of the handheld terminal through the handheld terminal small board. When a battery is charged, charging current flowing across a second charging path is larger than charging current in a first charging path as the resistance value of the second charging path is small, and the total electrical loss in the charging process is small as the electrical loss in the second charging path is smaller than the electrical loss in the first charging path; thus, little heat is released, the purpose of improving charging efficiency is improved, and charging time is shortened.

The invention discloses a method for optimizing a preparation process of a vanadium-aluminum alloy, which comprises the following steps of: at first, crushing vanadium pentoxide, aluminum powder, lime, fluorite and other materials according to the requirement of charging grain size, baking the crushed materials, dehydrating, removing volatile substances, then proportioning the baked materials appropriately, afterwards, totally pouring the proportioned materials into a material mixing cylinder for material mixing, delivering the sufficiently and uniformly mixed materials into a reaction furnace for smelting, standing still and precipitating upon the end of the smelting, then implementing casting, and finally, carrying out ball blast finishing, sampling and quality inspection. The method disclosed by the invention can effectively raise the metal recovery rate, lower the cost, reduce the content of alloy impurities and improve the quality of alloy.

The invention discloses a novel electrical-hydraulic hybrid power transmission system for a saloon car. The system comprises an electric driving system, a coupling mechanism and a hydraulic driving system, and the hydraulic driving system is connected with the coupling mechanism through a clutch. According to the novel electrical-hydraulic hybrid power transmission system applied to the saloon car, the hydraulic driving system composed of a hydraulic pump/motor, a high-lower pressure energy accumulator, a hydraulic valve component and a hydraulic controller on the basis of an original pure electric automobile transmission system, braking energy can be recycled and utilized more effectively, influences, produced on the cycle life of an accumulator, of large current charging and discharging are avoided, and electrical losses of an electric motor and abrasion of a friction plate of a brake are reduced.

The invention relates to the preparation of titanium alloy, in particular to aluminum-vanadium-molybdenum master alloy and the preparation method thereof. The alloy is composed of the following components calculated according to the weight percentage: V is 45 to 55 percent, Mo is 25 to 35 percent, and the residual is Al. The preparation process comprises the following steps: an outside-furnace ignition smelting method is adopted, the preparation is operated according to the conventional steps, the raw material drying temperature is 70 to 80 DEG C, the drying time is not less than 24 hours; the blending weight of the composition comprises that V2O5 is 1.00 kg, MoO2 is 0.39 to 0.47 kg, Al is 0.40 to 1.30 kg, CaF2 is 0.03 to 0.21 kg; the raw material charging temperature is 30 to 60 DEG C, the reaction is steady, and the alloy formation is good. The invention has the advantages that the invention is convenient for the preparation of the titanium alloy, the cost is low, and the alloying is even; the oxidation resistant performance is good, the alloy is easy to be stored and transported, and easy to be crushed.

The invention provides a grapheme-nanomaterial-based conductive wire, belongs to the technical field of conductive wires for overhead transmission lines, and solves the problems that improvement on the conductivity of aluminum and copper and other conventional metal materials is limited and the transmission capacity of an overhead transmission line is limited. The grapheme-nanomaterial-based conductive wire comprises two structures as follows: 1, the grapheme-nanomaterial-based conductive wire comprises an inner layer and an outer layer, wherein the inner layer is formed by twisting monofilaments of steel or carbon fiber, nanotube monofilaments of a grapheme nanomaterial or composite monofilaments, and the outer layer is formed by twisting arc grapheme nanomaterial sheets; 2, the grapheme-nanomaterial-based conductive wire is formed by twisting circular linear nanotube monofilaments of the grapheme nanomaterial or the composite monofilaments, wherein the monofilament are tightly adhered to one another to form a regular tubular structure, circular cross sections of the composite monofilaments are made of a carbon fiber composite material, and the grapheme nanomaterial is filled into the circular cross sections. The grapheme-nanomaterial-based conductive wire can effectively reduce the line loss and improve the transmission power of the overhead transmission line, and has an allowable current-carrying capacity which is 10 times as that of an ordinary wire under the same external conditions.

The invention discloses a graphene-coated energy-saving metal lead preparation method, belonging to the technical field of reducing power transmission metal lead resistance. The method comprises: preparing a graphene material coating layer on the peripheral surface of a metal lead in a chemical vapor deposition (CVD) method; and placing a bare metal lead in a reactor, adding a carbon source, and performing graphene CVD in the growth temperature between 601 DEG C and 1200 DEG C under the protection of argon and hydrogen to obtain a graphene layer. The conductivity ratio of a metal lead of the invention is one order of magnitudes higher than a traditional metal core; besides, a largest current carrying capacity allowed by a graphene material of a same cross section is 3-6 orders of magnitudes higher than a traditional metal lead. The graphene-coated energy-saving metal lead can effectively improve a conductive capability and greatly reduce transmission loss, aim at substantially enhancing lead performance on the aspects of conductive performance, mechanical performance and durability, and solve the problems that a current transmission line mainly depends on metal, and is high in line loss, and poor in mechanical property.

The invention discloses a solar cell module, comprising one or more series-coupled or parallel-coupled battery units, said battery unit comprising one or more series-coupled battery string series, said battery string series comprising one or more A battery string coupled in series by a bus bar, the battery string comprising a plurality of battery slices coupled in series by an interconnection bar; wherein two adjacent battery slices in the battery string connected by an interconnection bar have the same polarity, and Or, when the series of battery strings includes multiple battery strings, two or more adjacent battery strings are connected by bus bars, and the polarities of the two battery slices at the connection are the same. In the present invention, when solar modules are installed vertically, if 100% of the monolithic cells in each string are covered by lateral shadows, the power output of the modules will still be half of the output, so the invention reduces the electrical loss of solar cell modules and improves Solar module hot spot power loss.

The invention discloses a novel lamination module. The novel lamination module has the advantages that lamination module design ideas are introduced on the basis of the traditional photovoltaic modules, scribing technologies and ultrathin welding strips are applied, scribed small photovoltaic cell pieces are linked with one another by the ultrathin welding strips in the front-rear directions, front and rear cell pieces are arranged in an overlapped tile manner, and the overlap widths range from 2 mm to 4 mm; the novel lamination module is applicable to solar cells such as crystalline silicon cells, thin film cells, dye-sensitized cells and perovskite solar cells; currents of the cell pieces further can be reduced by the aid of laser scribing technologies, the scribed cell pieces are arranged in the overlapped tile manner, accordingly, the piece distances of the novel lamination module can be eliminated, the effective power generation area of the novel lamination module can be enlarged,and power of the novel lamination module can be increased; the thicknesses of overlapped regions of the cell pieces can be reduced by the aid of the ultrathin welding strips, the fragment rates of overlapped tile cell strings can be reduced, and the reliability of the novel lamination module can be improved; the novel lamination module is compatible with merits of lamination technologies, research and development thoughts can be expanded, research spaces can be enhanced, and the development potential of the novel lamination module can be exploited.

Provided is an electric bicycle. The electric bicycle is mainly composed of a frame, a controller box, a battery box and a battery box locating seat. The controller box, the battery box and the battery box locating seat are arranged on the upper portion of a lower pipe of the frame, and the lower portions of the controller box, the battery box and the battery box locating seat are all wrapped in a groove of the lower pipe of the frame. The battery box can rotate with a back-upper side line of the battery box as a rotating center, a battery box lock is opened, a battery box handle is pulled out, then the front portion of the battery box is rotated out upwards through the handle, then the battery box can be taken out, and conversely, the battery box can be put in. After the battery box is put in, an electrical connector is naturally inserted with an electric plug on the back portion of the controller box. A brake cable and an electric line enter into the bottom face of the groove of the lower pipe from a notch at the front-lower end of the controller box. The outer lower face of the back end of the lower pipe of the frame is connected with a frame reinforced board, the back end of the reinforced board is connected with a frame bottom fork bridge pipe, the back-upper portion of the lower pipe is connected with a middle joint, the upper portion of the middle joint is connected with the lower end of a vertical pipe, the back portion of the middle joint is connected with the front end of a frame bottom fork, the lower portion of the vertical pipe is connected with the front end of a branch pipe of the vertical pipe of the frame, and the back end of the vertical pipe branch pipe is connected with the front-upper portion of the bottom fork. The combination body is corresponding, coordinate, smooth, uniform and consistent in shape.

The invention discloses an intelligent peak-shaving energy-saving power supply which comprises an intelligent modulation controller, a DSP (Digital Signal Processor) controller, an isolation transformator T, a bidirectional inverter NB and an electrical energy memory unit, wherein, the intelligent modulation controller is connected with a commercial power circuit and used for detecting the voltage of the commercial power circuit and then sending the control signals to the DSP controller; the DSP controller is connected with the intelligent modulation controller and the bidirectional inverter NB, receives the control signals sent by the intelligent modulation controller, and controls the working state of the bidirectional inverter NB according to the control signals; and the bidirectional inverter NB is connected with the electrical energy memory unit and is also connected with the commercial power circuit through the isolation transformator T. The intelligent peak-shaving energy-saving power supply can adjust power network peak-valley balance and improves the stability of an electric power system.

The invention relates to an efficient energy-saving generatrix groove. The efficient energy-saving generatrix groove comprises a generatrix groove shell body, a plurality of bus bars arranged in the generatrix groove shell body, a jack box, a socket device and a cable wiring column; the shell body has a simple structure, is convenient to mount and has a good heat dissipation effect; meanwhile, the jack box with a high safety performance is arranged so that accurate, convenient and rapid jacking of the jack box is ensured; and meanwhile, the safety and reliability of hot plugging are ensured.

The invention relates to the preparation of titanium alloy, more specifically an Al-Mo-V intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Mo 9-13%, V 9-13%, and balancing Al. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, the raw material drying temperature being 70-80 deg. C, the drying time no less than 24 hours, calculated based on 1kg of Al, the charged mixture includes, V2O5 0.142-0.197kg, MoO3 0.159-0.258kg, CaF2 0.117-0.142kg, KClO3 0.151-0.183kg, the raw material shoving temperature being 30-60 deg. C. The advantages of the invention include facilitated preparation of titanium alloy, low making cost, homogeneous alloying, good oxidation resistance, easy storing, transport and strong tenacity.

The invention discloses an electrolysis chlorine dioxide generator and an electrolytic bath. The electrolytic bath comprises an outer chamber for accommodating clear water, an inner chamber arranged in the outer chamber and used for accommodating electrolysis brine, and a membrane arranged between the inner chamber and the outer chamber; the side wall of the inner chamber is provided with at least two combined cathodes which are symmetrically arranged and combined by a cathode and the membrane together; an anode is placed at the middle position of the inner chamber; the clear water is put into the outer chamber of the electrolytic bath, while the electrolysis brine is put into the inner chamber; and the electrolysis brine consists of water, salt and chlorite, wherein the salt accounts for 10 portions by weight, the chlorite accounts for 0.5 to 8 portions by weight, and 30 percent of saturated salt is dissolved in the formed electrolysis brine. The electrolytic bath has the characteristics of low electricity loss, long service life, simple structure, high service efficiency and the like.

The invention discloses an aluminum electrolysis anode hollow aluminum pouring steel claw. A hollow steel claw steel shell is included. An aluminum guide rod connecting plug is arranged at the upper end of the hollow steel claw steel shell. A steel claw beam is arranged at the lower end of the hollow steel claw steel shell. A set of steel claw feet are arranged at the lower end of the steel claw beam. The steel claw beam and the steel claw feet are each of a hollow structure. An aluminum core is poured into the aluminum guide rod connecting plug on the hollow steel claw steel shell, the steelclaw beam and the steel claw feet. By means of the aluminum electrolysis anode hollow aluminum pouring steel claw, the electrical resistivity of an anode guide rod and the steel claw is reduced, electrical losses are reduced, the production cost is reduced, and the beneficial effect that the integral mechanical strength is high is achieved.

The invention discloses an Al-Fe-B-RE aluminum alloy cable copper aluminum transition terminal belonging to the copper aluminum transition terminal technology field. The Al-Fe-B-RE aluminum alloy cable copper aluminum transition terminal comprises an aluminum alloy connecting pipe connected with a cable conductor and a copper lug connected with the other end of the aluminum alloy connecting pipe. A copper aluminum transition member is disposed between the aluminum alloy connecting pipe and the copper lug, and is an aluminum alloy having a cylindrical solid structure. The invention also provides the production method of the Al-Fe-B-RE aluminum alloy cable copper aluminum transition terminal. The production method is simple, and is easy to operate, the electrical performance, the mechanical performance, and the creep-resistance performance of the produced copper aluminum transition terminal are excellent, and under the condition of the constantly-changing temperature, the reliable connection can be guaranteed, the excellent thermostability and the excellent conductivity are provided, and in addition, the transition from the aluminum alloy cable to the connecting pipe to the copper lug is stable and smooth.

The invention relates to a communication control-based low-voltage reactive compensation device. Communication connection is performed between a reactive compensation controller and an intelligent capacitor and between intelligent capacitors, no other control loop is needed; zero-voltage putting and zero-voltage removal of the capacitor are achieved by arranging a composite switch in each intelligent capacitor, and the composite switch comprises an AC relay and a silicon-controlled rectifier; the reactive compensation controller is provided with an AC acquisition module, a communication moduleand a special chip, active powers, reactive powers and power factors of phases A, B and C of a low-voltage side of a transformer are calculated according to a current signal of a secondary side of acurrent transformer and a directly-acquired voltage signal, switching and removal of the intelligent capacitor are controlled by a communication mode according to a calculation result, a power factorof a user is stabilized within a set range in real time, the output power of the transformer is improved, the electric energy quality is improved, and the line loss is reduced. The reactive compensation device provided by the invention employs modular design and is simple in structure, and capacity expansion is facilitated.

The invention is applicable to the technical field of photovoltaic power generation, and provides a solar cell preparation method and a solar cell module. The method comprises: doping a front surfaceof a first doping area and a back surface of a second doping area in a substrate with N-type impurities after the substrate is subjected to a texturing process; depositing a first aluminum oxide filmand a first silicon nitride film on a front surface of the substrate, and depositing a second aluminum oxide film and a second silicon nitride film on a back surface of the substrate; forming first open slots in a front surface of the second doping area in the substrate, and forming second open slots on a back surface of the first doping area; preparing gate lines and performing a sintering process, wherein main gate lines on the front surface of the first doping area are connected to main gate lines on the front surface of the second doping region. The solar cell preparation method can prevent fragmentation of a solar cell caused by laser scribing, and can increase the output power of the solar cell module.

The invention discloses an automatic online cutting device of tab bars. A slider is arranged on a base; the bottom of a sliding seat is connected to the base by use of the slider; a horizontal elastic part is horizontally arranged in the moving direction of a tab bar to be cut; the two ends of the horizontal elastic part; the horizontal elastic part is connected with the slider; a vertical elastic part is perpendicular to the horizontal elastic part and arranged in the vertical direction; one end of the vertical elastic part is fixed on the slider, while the other end of the vertical elastic part of is fixed at the bottom of the base; a mold mechanism is arranged at the top of the slider; a cut-off mechanism is arranged on the base; the driving mechanism is connected with the cut-off mechanism. According to the automatic online cutting device of the tab bars, a secondary punching step can be reduced, and online primary cutting is realized to reduce the punching step and improve the production efficiency and the safety; the quality stability of the products can be guaranteed, for example, the cut gradient and the length error can be reduced, and the reject ratio of the products can be reduced to 3/1000 from 5/100 in the past.