218results about How to "Reduce electricity loss" patented technology

A family of materials wherein nanostructures and / or nanotubes are incorporated into a multi-component material arrangement, such as a metallic or ceramic alloy or composite / aggregate, producing a new material or metallic / ceramic alloy. The new material has significantly increased strength, up to several thousands of times normal and perhaps substantially more, as well as significantly decreased weight. The new materials may be manufactured into a component where the nanostructure or nanostructure reinforcement is incorporated into the bulk and / or matrix material, or as a coating where the nanostructure or nanostructure reinforcement is incorporated into the coating or surface of a “normal” substrate material. The nanostructures are incorporated into the material structure either randomly or aligned, within grains, or along or across grain boundaries.

A backplane cabling interconnect scheme is provided that includes a wafer based cable termination and an organizer shroud. The shroud complements existing backplane connectors and provides positioning and polarization for the cable terminated wafer. The wafer cable ends can be stacked or arranged in various arrays and are held in place with an integral latch. A permanent latch is provided for high vibration environments.

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 concerns a battery assembly (1), comprising: at least a first block (4) of rechargeable battery cell members (3) that are arranged side by side in at least one row and that are electrically configured in parallel, wherein each cell member (3) has a first and a second electrode terminal (24, 25); a printed circuit board (PCB) (10) provided with an electronic circuit (11) configured to monitor, control and / or balance said first block (4) of cell members (3); and interconnecting means (6, 7, 8, 17, 18, 20, 28) arranged to connect the first electrode terminals (24) electrically to each other and to the PCB (10). The invention is characterized in that the interconnecting means comprises a first supporting metal plate (6) that: extends along said at least one row of cell members (3); is mechanically fixed to the first block (4) of cell members (3); is electrically connected to the first electrode terminal (24) of each of the cell members (3) in the first block (4) of cell members; and that is mechanically fixed to the PCB (10) via a mechanical fixation that also provides an electric connection between the first metal plate (6) and the PCB (10). The invention also concerns a battery system comprising a plurality of battery assemblies of the above type.

The disclosed real-time method to prevent electric larceny comprises: monitoring the transformer substation pass, 10KV distribution lines, special user and public power parameter by a high-voltage electric energy collection terminal; monitoring original parameters by a low-voltage electric energy collection terminal; using a wireless digital communication network to send data to the monitor center to store in database for classification and analysis, then auto drawing load curve and charge curve for different monitor point. This invention has well monitor effect and can alarm by SMS.

In a method for manufacture of electrical steel a liquid steel mixture is created with a specified mixture chemistry. A continuous casting is performed to convert the liquid steel mixture to a slab. Hot roll steel band is created from the slab which is then pickled and hot band annealed, and then a cold rolled steel strip is formed. In a continuous annealing line, the cold rolled strip is annealed to achieve a partial recrystallization with a smaller grain size than would be the grain size with a complete recrystallization. Electrical steel created by the method is used for rotors and matching stators of a motor with properties at high strength and low electrical losses.

Battery assembly comprising a plurality of battery blocks, where each battery block comprises a first metal plate fixedly connected to the positive terminals of a plurality of rechargeable battery cell members and a second metal plate fixedly connected to the negative terminals of the cell members, further comprising a printed circuit board provided with an electronic circuit configured to monitor, control and / or balance said battery blocks, where the metal plates of subsequent battery blocks are fixedly connected to each other such that the battery blocks are electrically configured in series, and where the PCB is mechanically fixed to mounting flanges of the metal plates with mounting means that also provides an electric connection between the metal plates and the PCB. The advantage of the invention is that a self-supporting battery assembly that can be produced in a cost-effective way is provided.

A radio-frequency (RF) resonator system, in particular, for a magnetic resonance (MR) probe, comprising at least one RF resonator with a substrate, on which a conductive structure is applied, wherein the conductive structure comprises regions of capacitive and inductive elements, is characterized in that the conductive structure is coated at least in the regions of the capacitive elements with at least one dielectric layer that covers the regions of the capacitive elements at least partially, wherein the local thickness of at least one of the dielectric layers is set in dependence on the resonance frequency of the uncoated RF resonator, on a defined resonance frequency of the resonator once it is coated, on the dielectric constant of the substrate and on the dielectric constant of the materials of the dielectric layers. The inventive resonator system can be set to the required resonance frequency quickly, at low cost, reversibly, and with high precision and at the same time the dielectric strength of the resonator system is increased.

A component for the transmission of electromagnetic waves and a method for producing such a component is provided, whereby conductors of a coplanar waveguide system are embedded in a membrane such that they are at least partially suspended across a back-etched area of the substrate for the decoupling of the conductors from the substrate (1). An additional substrate is connected to the bottom side of the back-etched area of the substrate in such a way that a hollow cavity is formed.

The invention belongs to the technical field of motor controllers and relates to a liquid-cooled motor controller. The motor controller is characterized in that a circuit board of a motor controller, which contains power devices, is supported in a closed metal box in an insulating manner; insulating and heat conducting liquid is filled in the metal box; heat expansion space of the liquid is arranged between the inner wall of the metal box and the liquid; and a lead connected with the motor controller is led out of the metal box in an insulating and sealing manner. The motor controller has the following advantages: the motor controller adopts the liquid to conduct heat outwards, has high heat transfer efficiency, high heat dissipation speed, good insulating property and long service life, and is suitable for manufacturing motor controllers with high reliability.

The invention discloses a signaling optimization method and a signaling optimization system for MTC devices set together. The following steps are performed in both the method and the system: an R-MD and a MTC UE which are set together are directed to a same mobile management unit, and an association relationship between the R-MD and the MTC UE is established; subsequent mobility management flow is performed by the R-MD instead of the MTC UE based on the association relationship; and the R-MD is used to represent the MTC UE, and is a terminal similar to the MTC UE. For the MTC UE set together, the method and the system provided in the invention can realize optimization for signaling associated with mobility management according to the characteristics of the MTC UE, reduce the mobility management signaling, signaling peak value and electrical loss of the terminals, at the same time when the MTC devices can communicate with respective MTC servers independently.

The invention relates to a titanium alloy, in particular to a titanium alloy and a preparation method thereof. The titanium alloy comprises the following components in percentage by weight: balanced of Ti, 5.3-6.10 percent of Al, 1.80-2.20 percent of Sn, 1.80-2.20 percent of Zr, 1.80-2.20 percent of Mo, 1.80-2.20 percent of Cr, 0.13-0.19 percent of Si, lower than 0.08 percent of Fe, lower than 0.08 percent of C, not more than 0.03 percent of N, not more than 0.015 percent of H and not more than 0.12 percent of O; the smelting technical parameters are as follows: the vacuum degree before smelting is lower than 3Pa, the leakage rate within 3 min is equal to or lower than 3Pa, the smelting vacuum degree is equal to or lower than 3Pa, and the smelting current and the feeding current range from 2kA to 10kA; and the preparation method comprises the following steps: firstly, preparing the intermediate alloys AlSn50, AlCr50 and AlMo60, and then performing electrode preparation, electrode baking, electrode welding, furnace loading, smelting, cooling, furnace tapping, turning and sampling analysis by budgeting. The invention has the advantages that the refined grains of the alloy for silicon are added in, the processing and the forging are easy, the tensile strength in the performances of a plate processed by the alloy reaches 1100-1300MPa, the elongation rate reaches 12-20 percent, and meanwhile, the Beta phase can be stabilized.

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.

An electric power supply system for driving an electric rotating machine has a generator supplied with driving power from an engine to generate alternating-current electric power and a matrix converter as an alternating-current to alternating-current direct converter supplied with the alternating-current electric power to output arbitrary alternating-current electric power. By driving a motor with the alternating-current electric power supplied from the matrix converter, only one time electric power conversion is carried out to provide high efficiency in the whole system. In addition, electric power loss can be reduced so as to enhance a motor output when the system is applied to a vehicle power supply system.

The invention diskloses an axial magnetic flux concentrated winding type hybrid excitation motor. The motor includes a stator disk and two rotor disks, wherein the stator disk includes a stator core,an armature winding, an exciting winding and a magnetic ring, the rotor disks respectively include a rotor back yoke, a magnetic pole block and a permanent magnet, left and right sides of the stator core of the stator disk are provided with stator slots, the armature winding is installed on a magnetic yoke of the stator core, two rotor disks are arranged on both sides of the stator disk, the number of rotor poles matches the number of the stator slots to form a concentrated winding motor structure, the permanent magnets and the magnetic pole blocks are alternately installed on the rotor disks,the two rotor disks are staggered and installed on both sides of the stator disk, the magnetic pole blocks extend outward in the radial direction and form an additional air gap of an excitation fieldin the axial direction with the magnetic ring on the stator core. The motor is advantaged in that the motor has high power density and wide magnetic field adjustment range, and has important application prospects in electric vehicle driving systems, hybrid power generation systems and aviation electric propulsion systems.

The invention discloses a high-energy silicon-containing lithium battery, wherein the conductive agent of the positive electrode is 0.02-0.06% single-walled carbon nanotubes and 0.2-0.6% graphene: Thenegative electrode sheet is made of the following ingredients in parts by weight: up to 100% of the negative electrode active material, 0-1% of conductive carbon black, 0.02-0.08% of single-walled carbon nanotubes, 1-2% of CMC and 1.2-2.5% of binder; The negative electrode active material is carbon silicon and / or oxygen silicon, and the gram capacity is more than or equal to 650 mAh / g; The binderis prepared from styrene-butadiene rubber, acrylic acid and PMMA in 5-7: 1: 2-4 by weight ratio. The high-energy silicon-containing lithium battery has better charging and discharging stability, volume expansion resistance, cycle performance and stability under the premise of high energy by optimizing the conductive agent composition of the positive and negative electrodes and optimizing the binder.

An optical modulator comprises a Z-cut lithium niobate substrate on which is formed a Mach-Zehnder interferometer having two generally parallel waveguides lying beneath a buffer layer of dielectric material. First and second ground electrodes and a hot electrode are disposed on the buffer layer, the first and second ground electrodes being spaced either side of the hot electrode, the hot electrode and the first ground electrode being proximate to at least apart of the respective waveguides. The electrode structure is unsymmetrical in that (a) the hot electrode and the first ground electrode each have a width substantially less than that of the second ground electrode and or (b) the spacing between the first ground and hot electrodes is different from the spacing between the second ground and hot electrodes. whereby a range of chirp values can be obtained. When the spacing between the first ground and hot electrodes is smaller than the spacing between the second ground and hot electrodes, and preferably the hot and first ground electrodes have a width not exceeding 15 .μm, the modulator is capable of operation at frequencies above 10 GHz, possibly up to around 40 GHz.

A screwless connection terminal with a contact element to which a conductor is to be electrically connected, the contact element comprising a connecting section and a contact surface, with a clamp spring by means of which the conductor is to be clamped to the contact surface of the contact element, wherein the clamp spring has a clamping leg, an abutting leg and a tensioning leg, wherein a clamp opening is formed in the clamping leg, through which clamp opening, the conductor is to be led, wherein the abutting leg of the clamp spring abuts on the contact element, and the tensioning leg of the clamp spring connects the abutting leg to the clamping leg, wherein the clamping leg further comprises a conductor clamp extension with a clamping face which is aligned substantially parallel to the contact surface of the contact element.

The invention relates to the preparation of titanium alloy, more specifically an Al-Nb-Ta intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 19-28%, Ta 23-27%, and balancing Nb. 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 Nb2O5, the charged mixture includes, Ta2O5 0.383-0.42kg, Al 0.75-0.913kg, CaF2 0.15-0.20kg, KCLO3 0.30-0.40kg, 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 fragmenting.

A wound transformer core is provided with at least one core loop made of a magnetic material. The transformer core includes multiple thin amorphous band-like iron sheets which are concentrically stacked around at least one center axis. A lower yoke section, an upper yoke section, and at least two limb sections are formed. The transformer core includes a modular plate-like support structure which is affixed upright to the center axis on both face sides of the lower yoke section and on both face sides of each limb section such that neighbored iron sheets are affixed together at their outer edge. The modular plate-like support structure includes, for each face side of the corresponding core sections, at least two plate-like modules, which are each connected to each other by a first or second plug-in connection.

Arrangement for steering and supplying propulsion power to a contra rotating propellers (CRP) propulsion system in a marine vessel, which arrangement comprises a first propeller (44) driven by a rotating power unit (40) and a second propeller (48) driven by an AC motor (50) whereby the second propeller (48) is rotated in the opposite direction as the first propeller (44), and an AC generator (42) coupled to mechanical output shaft of the power unit (40) and driven by a rotating power unit, whereby the AC generator (42) is electrically connected to the AC motor (50). According the arrangement the AC motor (50) and the AC generator (42) have the same electrical frequency, another electrical power source (60,61,62) is electrically connectable to the AC motor (50) parallel to the AC generator (42), the shaft (47) of the second propeller is mounted rotatable in a support structure (16,24) which is attached to a hull of the marine vessel (2), and a rudder (10), which is supported in a manner allowing pivotal movement of the rudder (10) relative to the support structure (16, 24).

A wind park control system for controlling reactive power output of wind turbines is described. The wind park delivers active power and reactive power to a utility grid. A total amount of reactive power required by the utility grid and an individual amount of reactive power for each wind turbine are determined. A capability scheme having an order for selecting the wind turbines to deliver reactive power is calculated based on the individual amount of reactive power and the total electrical power loss contributed by each connection of the wind turbines to the utility grid. An actual amount of reactive power provided by the wind turbines is adjusted. The reactive power output of each wind turbine is controlled based on the capability scheme. The wind turbines are selected for delivering reactive power in the order of the capability scheme so that the total amount of reactive power is fulfilled.

A dye-sensitized solar cell having a porous conductive powder layer, which layer is formed by deposition of a deposit comprising metal hydride particles onto a substrate; heating the deposit in a subsequent heating step in order to decompose the metal hydride particles to metal particles; and sinter said metal particles for forming a porous conductive powder layer.

The invention is an Al-Wu system medium alloy and preparing method. Its components (wt%): Wu 10-75, Nb 0-75, Mo 0-75, Ti 0-20 and the rest Al. It can adopt out-furnace ignition smelting: the drying temperature of the raw material 70-80 deg.C, when mixing, add with burden residue accounting for 5-15% of total weight of the raw material; also adopt medium-frequency furnace melting: when mixing according to the above proportion, add with antioxidizer and fluxing agent. The smelting is stable, avoiding the phenomenon that the smelting current is sometimes high and sometimes low. When preparing Ti alloy, it is able to add the Wu-Al system medium system in alloy package mode.

The invention relates to the preparation of titanium alloy, more specifically an Al-Ti-Nb intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 2-10%, Si 3-30%, and balancing Nb. 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 Nb2O5, the charged mixture includes, TiO2 0.25-0.66kg, Al 0.115-0.46kg, CaF2 0.05-0.10kg, KclO3 0.07-0.12 kg, 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 fragmenting.

The invention relates to a solar cell module, comprising solar cells (13, 15) that are arranged on a mount (14) and connected by means of connectors (24, 26). In order to be able to produce the solar cell module at low cost and to minimize the electrical losses due to connectors, the mount is provided with recesses (22), within which the connectors extend at least in some sections, and the solar cells are arranged outside of the recesses in a planar manner or substantially planar manner on the mount or on a layer extending on the mount.

A radio-frequency (RF) resonator system, in particular, for a magnetic resonance (MR) probe, comprising at least one RF resonator with a substrate, on which a conductive structure is applied, wherein the conductive structure comprises regions of capacitive and inductive elements, is characterized in that the conductive structure is coated at least in the regions of the capacitive elements with at least one dielectric layer that covers the regions of the capacitive elements at least partially, wherein the local thickness of at least one of the dielectric layers is set in dependence on the resonance frequency of the uncoated RF resonator, on a defined resonance frequency of the resonator once it is coated, on the dielectric constant of the substrate and on the dielectric constant of the materials of the dielectric layers. The inventive resonator system can be set to the required resonance frequency quickly, at low cost, reversibly, and with high precision and at the same time the dielectric strength of the resonator system is increased.

An improved HF coupler or HF power splitter comprises four connection lines arranged on the same side of the substrate. Two coupling zones are formed on the substrate on two opposite sides; the second coupling zone is connected to the associated connection lines arranged on the side of the substrate opposing the coupling zone, by means of two via holes in an electroplated manner. The capacitors provided at the beginning and at each end of each coupling zone are respectively embodied as interdigital capacitors; and the capacitors are respectively coupled to earth.