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209results about How to "Increase power" patented technology

High-power high-reliability voltage retainer used for automobile starting and stopping system

ActiveCN105388955ATroubleshoot things that don't workRich hardware and software support environmentElectric variable regulationElectrical batteryElectricity
The invention provides a high-power high-reliability voltage retainer used for an automobile starting and stopping system. The high-power high-reliability voltage retainer is higher in power and reliability and smaller in size and ripple. The high-power high-reliability voltage retainer comprises a through circuit module (1), a booster circuit module (2), a reversed polarity circuit module (3), a CAN transceiver (4), a CPU (5), a DSP (digital signal processor) (6) and a battery. A battery input port and a battery output port are formed in the through circuit module (1), a battery input port and a battery output port are formed in the booster circuit module (2), and the reversed polarity circuit module (3) is electrically connected with the booster circuit module (2); the CAN transceiver (4), the CPU (5) and the DSP (6) are sequentially and electrically connected; the CPU (5) is electrically connected with the through circuit module (1), and the DSP (6) is electrically connected with the through circuit module (1); the DSP (6) is electrically connected with the booster circuit module (2).
Owner:SHANGHAI FENGTIAN ELECTRONICS

Double-gain-medium Q-switched laser and constant-power pulse width adjusting method

The invention relates to the technical field of lasers, and provides a double-gain-medium Q-switched laser and a constant-power pulse width adjusting method.The laser comprises a first pumping source, a second pumping source, an optical fiber beam combiner, a beam shaping system and a laser resonant cavity, the laser resonant cavity comprises a reflecting mirror, a first gain medium, a second gain medium, a polarization selector, a quarter-wave plate, a Q switch and an output mirror which are arranged in sequence; the first gain medium is used for absorbing first pumping light, the second gain medium is used for absorbing second pumping light, and the pumping power of the first pumping source and the pumping power of the second pumping source can be independently controlled. By changing the pumping power of the two pumping sources, real-time adjustment of the pulse width of the laser under the constant output power is achieved, the structure is compact, and control is easy and convenient.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Large wind turbine generator power load cooperative fault-tolerant control method

The invention discloses a large-scale wind turbine generator power load cooperative fault-tolerant control method. The method comprises the following steps: establishing a unit load and rotating speed control model considering a variable pitch actuator fault; according to the load and rotating speed control model, a fault-tolerant independent variable-pitch controller composed of a centralized variable-pitch ring, an independent variable-pitch ring and a fault-tolerant compensation ring is constructed for the three-blade variable-pitch actuator; and the fault-tolerant independent variable pitch controller inputs variable pitch given instructions corresponding to the blades to the corresponding variable pitch actuators, and the variable pitch actuators implement fault-tolerant variable pitch with the variable pitch given instructions as reference, so that power and load cooperative control under the fault working condition is achieved. According to the method, the optimization effect and the application capability boundary of pneumatic unbalanced load suppression of the wind wheel of the unit can be improved under the combined action condition of multi-source disturbance and variable-pitch actuator faults, meanwhile, the high stability of power output is guaranteed, and high-performance power-load cooperative control is achieved.
Owner:ZHEJIANG UNIV +1

Coal-fired unit deep peak shaving system coupled with electric heating high-temperature phase change heat storage

The invention discloses a coal-fired unit deep peak shaving system coupled with electric heating high-temperature phase change heat storage, and relates to the technical field of power generation. The matching capacity of the heat storage system and the full-working-condition operation parameters of the high-parameter coal-fired unit can be effectively enhanced, so that the deep peak regulation capacity and the variable load rate of the coal-fired unit are improved, meanwhile, the energy density, the electricity-heat conversion efficiency and the economic benefits of the heat storage device are improved, and the unit can be prevented from running in an over-low load mode so as to improve the efficiency and prolong the service life. The coal-fired unit deep peak shaving system comprises a coal-fired unit and a high-temperature phase change heat storage system. According to the invention, the peak regulation flexibility of the coal-fired unit is improved, the energy density, the electricity-heat conversion efficiency and the economic recovery period of the heat storage device are also improved, and the over-low load operation of the unit can be prevented so as to improve the efficiency and the service life.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

A split-type laser and its laser output structure

This utility model discloses a split-type laser and a laser output structure, including: a first laser generating structure, comprising a first pump source and a first doped fiber, wherein the first pump source is used to pump the first doped fiber to generate a first laser; a second laser generating structure, comprising a second pump source and a second doped fiber, wherein the second pump source is used to pump the second doped fiber to generate a second laser; and a laser output structure, wherein the laser output structure has a first output channel and a second output channel, the laser output structure being located on the propagation paths of the first laser and the second laser, and the laser output structure being capable of adjusting the ratio of the first laser and the second laser output by the first output channel and the second output channel. Both the first laser generating structure and the second laser generating structure have their own pump sources, making it easier for users to select the light source emitted by the laser.
Owner:SHANGHAI FEIBO LASER TECH CO LTD

Ultrasonic transducer and ultrasonic cleaning equipment

PendingCN121945393Asave vertical spaceRadiation area is largeMechanical vibrations separationCleaning using liquidsVibration amplitudeUltrasonic sensor
The invention provides an ultrasonic transducer and ultrasonic cleaning equipment, the ultrasonic transducer comprises a piezoelectric exciter and a vibration radiant panel, the vibration radiant panel is fixed on the piezoelectric exciter, a power supply is electrically connected with the piezoelectric exciter, so that the piezoelectric exciter can generate longitudinal vibration, and the longitudinal vibration of the piezoelectric exciter can excite bending vibration of the vibration radiant panel. The longitudinal vibration sandwich type piezoelectric ultrasonic transducer solves the defects that an existing longitudinal vibration sandwich type piezoelectric ultrasonic transducer is small in radiation area, weak in longitudinal displacement amplitude, long in longitudinal size and the like to a great extent, and has the advantages of being small in space needed by operation, large in sound radiation area and sound radiation power, small in size and the like. The ultrasonic transducer can be widely applied to the application requirements of miniaturization and thinning of the installation space of the ultrasonic transducer. Meanwhile, the longitudinal bending displacement amplitude conversion ratio of the ultrasonic transducer can be influenced by the length, and / or the width and / or the thickness of the vibration radiant panel, so that the longitudinal bending displacement amplitude conversion ratio of the ultrasonic transducer is further improved through the size of the vibration radiant panel.
Owner:SHENZHEN MIAOLAI INNOVATION WORKSHOP TECHNOLOGY CO LTD

Variable wave arc welding power source control method, arc welding equipment, control device and storage medium

This invention discloses a variable-wave arc welding power supply control method, arc welding equipment, control device, and storage medium. Applied to an arc welding equipment, the equipment includes a coordination control module and at least two power conversion modules. The coordination control module is connected to the controlled terminals of each power conversion module to control the switching of the power conversion modules to form and output pulse power. The output terminals of each power conversion module are connected in parallel to superimpose the electrical energy of the arc welding power supply. The variable-wave arc welding power supply control method includes: the coordination control module outputting its corresponding control commands to each power conversion module; and each power conversion module adjusting the pulse width and on / off timing of the pulse power according to the control commands to increase the power or voltage amplitude of the arc welding power supply. This design optimizes the output waveform of the welding power supply, enabling it to provide excellent dynamic characteristics and improve welding performance.
Owner:GUANGDONG WELLTECH TECH CO LTD +3

A hybrid inverter with heterogeneous power devices and its space vector modulation method

This invention relates to the field of inverter technology, and particularly to a heterogeneous power device hybrid inverter and its space vector modulation method. The heterogeneous power device hybrid inverter provided in this invention includes a first constant current source, a second constant current source, a main power inverter module, a secondary power inverter module, and a capacitive reactance module. The first constant current source is connected to the main power inverter module to provide current to the main power inverter module. The main power inverter module includes multiple silicon-based insulated-gate bipolar transistors (SBMTs) as main switching transistors, and the main power inverter module is connected to the capacitive reactance module. The second constant current source is connected to the secondary power inverter module to provide current to the secondary power inverter module. The secondary power inverter module includes multiple silicon carbide-based metal-oxide-semiconductor field-effect transistors (MOSFETs) as secondary switching transistors, and the secondary power inverter module is connected to the capacitive reactance module. The heterogeneous power device hybrid inverter and its space vector modulation method provided by this invention can balance high inverter frequency and low switching losses.
Owner:이너 몽골리아 일렉트릭 파워 그룹 컴퍼니 리미티드 이너 몽골리아 일렉트릭 파워 리서치 인스티튜트 브랜치 +1

A slurry type pipe jacking excavator with a double-channel cutter head main shaft structure

ActiveCN224592131USimple structureReduce technical risk
The utility model provides a kind of double-channel cutterhead main shaft structure's slurry pipe jacking boring machine, by excavator shell, main shaft seat, cutterhead and cutterhead main shaft constitute, the excavator shell is cylindrical structure, tail end outer edge is equipped with the socket mouth of socket pipeline, the main shaft seat is set in excavator shell second half, excavator shell first half is slurry tank;The cutterhead is set in excavator shell front end;Cutterhead main shaft rear end is set on main shaft seat, front end is connected with cutterhead;The earth-facing surface of the cutterhead is equipped with several hard alloy cutter blocks;Cutterhead main shaft adopts large diameter double-wall structure, is composed of outer shaft and core pipe, outer shaft front end is connected with cutterhead, is responsible for driving cutterhead rotation;The front end of core pipe is closed, fixedly arranged at the axis of outer shaft, the internal space of outer shaft is divided into core pipe hole and double-wall sandwich between core pipe outer wall and outer shaft inner wall two passages;The utility model structure is extremely simple, and technical risk is greatly reduced.
Owner:NANJING LONGRUI INTELLIGENT TECH CO LTD

Integrated optical fiber isolation device for laser

The utility model discloses an integrated optical fiber isolator for a laser in the field of optical devices, which comprises an integrated optical fiber, the integrated optical fiber comprises an optical fiber body and a plurality of micro-nano structure pairs positioned in the optical fiber body, and the optical fiber body comprises a core layer and a cladding. The included angle between the micro-nano structure pair and the forward transmission direction of the integrated optical fiber is smaller than 90 degrees, so that the micro-nano structure pair is coupled with light which is reversely transmitted in the core layer. According to the utility model, the micro-nano structure is processed on the optical fiber body, and the micro-nano structure is utilized to realize the isolation of the reverse light, thereby not only reducing the damage of the reverse light to the device, but also being higher in integration level and smaller in size of the whole isolation device, and reducing the risk of damage.
Owner:SHENZHEN GEDE LASER TECHNOLOGY CO LTD

Tetraphenyl ethylene-benzotriazole derivative compound and application thereof in photovoltaic field

PendingCN121949226AStrong UV absorption abilitypromote absorptionOrganic chemistryQuantum yieldHigh concentration
The invention relates to the technical field of photovoltaic modules, and particularly discloses a tetraphenyl ethylene-benzotriazole derivative compound and application thereof in the photovoltaic field. The absorption spectrum of the tetraphenyl ethylene-benzotriazole derivative compound disclosed by the invention can be subjected to red shift to 420 nm, so that high-energy ultraviolet light can be completely absorbed; the maximum emission wavelength of a fluorescence emission spectrum is more than 440nm and even can reach 500nm, so that the light utilization level of the crystalline silicon solar cell is improved; the absolute light-emitting quantum efficiency is very high, and the converted wavelength can be better utilized by a photovoltaic device. The substituted tetraphenyl ethylene part contained in the derivative compound has AIE performance, and the fluorescence quenching effect of traditional small organic molecules in high concentration, solid state and aggregation state is avoided. The light conversion film can overcome the problem that the fluorescence quantum yield is remarkably reduced in the laminating process, the performance of the film is not affected when the phenomena of precipitation, agglomeration and the like of auxiliaries in the film occur, and the light conversion film is used for preparing a photovoltaic module.
Owner:MAISON CHEM

Air cushion vehicle control method and air cushion vehicle

PendingCN122540109Aincrease powerPrevent excessive speeding
This application relates to the field of ship control, providing a hovercraft control method and hovercraft, including: in a static power generation mode, disengaging the clutch of the hovering fan, energizing the generator, and having the gas turbine drive the generator to generate electricity through a reducer, driving the propulsion fan to rotate with a reverse pitch, generating a reverse airflow to cool the generator, reducer, and gas turbine; when a sudden load reduction is detected in the generator, increasing the propulsion fan pitch through a pitch controller, increasing the load torque generated by the propulsion fan to compensate for the sudden load reduction and preventing the gas turbine from overspeeding; the hovering fan stops rotating, causing the hovercraft to contract, and the hovercraft contacts the ground through a fixed shovel, the unidirectional resistance generated by the fixed shovel balances the pull generated by the increased propulsion fan pitch, maintaining the stability of the entire vessel. By integrating the generator into the hovercraft's propulsion system and utilizing the adjustable pitch characteristic of the propulsion fan to cope with sudden load reduction, the integration of emergency power and power mobility are improved.
Owner:AECC CHINA GAS TURBINE ESTAB

A surface waveguide microstrip antenna for solid color center spin

ActiveCN116247437BReduce transmit powerAddressing technical shortcomings of lower powerRadiating elements structural formsHigh level techniquesMicrowaveWaveguide
This invention discloses a surface waveguide microstrip antenna for solid-state color center spin. The surface waveguide microstrip antenna includes an outer antenna, a middle antenna, and an inner antenna on a diamond substrate. Blind holes are formed on the substrate, and the diamond is nested within these holes, with the upper surface of the diamond flush with the upper surface of the substrate. The outer, middle, and inner antennas are all square ring-shaped and nested sequentially from the outside to the inside. Each of the outer and middle antennas has an opening on its side, located on opposite sides of their respective antennas. The outer, middle, and inner antennas together form the surface waveguide microstrip antenna with a resonant frequency of 2.87 GHz. Electromagnetic waves are transmitted between the surface waveguide microstrip antennas via radiation, generating resonance. This invention not only offers high power and high uniformity of the microwave magnetic field but also eliminates the need for additional flying wires, simplifying the installation process.
Owner:ZHEJIANG LAB

A horizontal electrode boiler

ActiveCN224284570Ueasy to controlbuoyancy stability
This utility model provides a horizontal electrode boiler, relating to the field of electrode boiler technology. It includes an electrode boiler body and a processing mechanism disposed on the outer side of the end of the electrode boiler body. The processing mechanism includes a base, which is fixedly connected to the outer side of the bottom end of the electrode boiler body. A cover plate is detachably connected to the outer side of the top end of the electrode boiler body, and a valve is installed on the outer side of one end of the electrode boiler body. The position of the electrode body is automatically adjusted by the buoyancy of a floating ring in the processing mechanism, maintaining the contact area of ​​the electrode body according to water level changes. Simultaneously, a hollow, high-temperature resistant ceramic floating ring is used to provide stable buoyancy and achieve dynamic power matching. A sliding rod displays the water level in real time as the height of the electrode body changes, allowing users to monitor it without additional tools.
Owner:BEIJING ZANDER &INGESTROM THERMAL TECH CO LTD

Radio frequency resonant cavity based on short circuit sliding block

The invention relates to a radio frequency resonant cavity based on a short-circuit sliding block. The radio frequency resonant cavity comprises an input coaxial transmission line; the connector is connected with the input coaxial transmission line; the first output coaxial transmission line and the second output coaxial transmission line are connected with the connector. The first shifting mechanism is arranged on the first output coaxial transmission line, and the second shifting mechanism is arranged on the second output coaxial transmission line; each of the first output coaxial transmission line and the second output coaxial transmission line comprises an inner conductor, a short-circuit sliding block and an outer conductor, the outer conductor coaxially sleeves the inner conductor, a coaxial cavity is formed between the outer conductor and the inner conductor in a matching manner, and the short-circuit sliding block is connected with the first displacement mechanism and the second displacement mechanism; the short-circuit sliding block is movably arranged in the coaxial cavity. According to the ion cyclotron wave power transmission system, the effect of obtaining large voltage by means of small power is achieved, possible sparking points can be detected under the working condition of large voltage, then measures are taken in advance to prevent the sparking phenomenon, and stable operation of the ion cyclotron wave power transmission system is guaranteed.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES +1

Photovoltaic module

ActiveCN224139389UBroaden the range of light absorptionImprove photoelectric conversion efficiencyElectrical batteryUltraviolet lights
The utility model relates to a photovoltaic assembly comprising a cell string, the cell string comprises a plurality of slice cells, and the cutting surface of each slice cell is provided with a passivation layer; the photovoltaic module further comprises a plurality of light conversion films, the light conversion films are arranged on the sides of the passivation layers of the slice battery pieces, and the side edges of the light conversion films extend to the surfaces of the slice battery pieces to cover the passivation layers. The light conversion film of the photovoltaic assembly is used for covering the passivation layer, so that the damage of ultraviolet light to the passivation layer is greatly reduced, the ultraviolet resistance of the passivation treatment part of the sliced battery piece is improved, the power of the photovoltaic assembly is increased, and the service life of the photovoltaic assembly is prolonged.
Owner:CHINT NEW ENERGY TECH CO LTD

High-reflection integrated film and photovoltaic module

The utility model relates to a high-reflection integrated film and a photovoltaic module. The high-reflection integrated film comprises a substrate, a first adhesive film and a second adhesive film. The base body is provided with a first surface and a second surface which are opposite to each other, the first surface is coated with a reflective coating, the reflective coating is arranged corresponding to a gap area of the cell string, and the reflective coating is used for reflecting light. The first adhesive film is compounded on the first surface and is used for connecting the backlight surface of the battery string. And the second adhesive film is compounded on the second surface and is used for connecting the back cover plate. Therefore, the reflective coating can reflect the light to the light receiving surface of the cell string, the utilization rate of the light is improved, the power of the photovoltaic module is further improved, a high reflective film does not need to be pasted on the back cover plate, the increase of packaging procedures is avoided, and the packaging efficiency is ensured.
Owner:通威太阳能(盐城)有限公司

Hollow beam coherent array solid state laser

The application discloses a kind of hollow light beam coherent array solid-state lasers, it is related to the technical field of laser, wherein, microstructure sheet and microstructure output layer adopt bonding mode connection;Array of hollow light field modulation structure is formed on microstructure sheet, pump source is used to emit pumping light, pump source and optical coupling system are relatively microstructure sheet and are matched to be set, so that pumping light can be coupled into microstructure sheet by optical coupling system, and hollow light beam array is formed by hollow light field modulation structure array;Hollow light beam array enters microstructure output layer by microstructure sheet, and forms coherent coupling and injection phase-locked in microstructure output layer, and outputs hollow light beam coherent array laser.Through the technical scheme of the application, high-power hollow light beam coherent array laser output can be obtained, and hollow light beam regulation is easy to realize, the scope of application is wide, and scalability is strong, and simple structure, low in cost, high in efficiency.
Owner:BEIJING UNIV OF TECH

Photovoltaic module

The utility model discloses a photovoltaic assembly, comprising four battery arrays, the four battery arrays are arranged in a manner of being adjacent in pairs along the transverse direction and the longitudinal direction, each battery array is formed by connecting three battery strings with the same length in series, each battery string is formed by connecting a plurality of battery string division sheets in series, bypass diodes are arranged beside the four battery arrays, and the bypass diodes are connected with the battery strings. And the four battery arrays are sequentially connected in series. According to the photovoltaic module, the output power of the photovoltaic module can be improved, and the photovoltaic module has an excellent heat spot resistant effect by reasonably setting the connection relation between the bypass diodes and the battery array.
Owner:YOURSUN NEW ENERGY DEVELOPMENT (HANGZHOU) CO LTD

Flexible methanol fuel cell and humanoid robot power supply system

The invention discloses a flexible methanol fuel cell and a humanoid robot power supply system, and relates to the technical field of methanol power generation, the flexible methanol fuel cell comprises a flexible bag body, the two ends of the flexible bag body are provided with a liquid inlet and a liquid outlet, and the side surface is provided with a mounting opening; the membrane electrode is sealed in the mounting opening; the anode diffusion layer and the cathode diffusion layer are respectively fixed on the anode side and the cathode side of the membrane electrode, and fine wire meshes are fixed on the anode diffusion layer and the cathode diffusion layer. A humanoid robot power supply system comprises a flexible methanol fuel cell, a DMFC energy management system and an energy storage cell, and the flexible methanol fuel cell serves as a power generation unit and is integrally distributed on the outer surface of a robot. According to the flexible methanol fuel cell disclosed by the invention, the whole cell body has good bending, twisting and tensile elasticity, can adapt to various irregular surfaces and dynamic deformation scenes, and is light in weight and thin in thickness. The flexible methanol fuel cell is used as a power generation skin to be integrated on the robot, the mass energy density is improved, and the endurance working time is prolonged.
Owner:SHANGHAI ZHONGHYDROGEN NEW ENERGY TECH CO LTD

Process and apparatus for the production of anhydrous hydrogen fluoride and sulfuric acid

PendingCN122627381ASimple processReasonable workmanshipHydrogen fluorideLiquid fluorine
The present application relates to a kind of methods and devices for preparing anhydrous hydrogen fluoride and sulfuric acid.The method comprises the following steps: removing impurities from industrial waste fluorosulfuric acid, mixing it with concentrated sulfuric acid to form a pretreated mixture; using microwave heating to rapidly heat the reactor, a static bed is arranged in the reactor; the pretreated mixture is passed into the upper surface of the static bed in the preheated reactor, the pretreated mixture is heated by microwave, and hydrogen fluoride and sulfur trioxide gas are generated by the decomposition of the pretreated mixture; hydrogen fluoride and sulfur trioxide are mixed and passed into low-temperature concentrated sulfuric acid to absorb sulfur trioxide gas; then passed into low-temperature condensing equipment, and liquid hydrogen fluoride is collected; the liquid hydrogen fluoride is purified by rectification; and the concentrated sulfuric acid that absorbs sulfur trioxide is evaporated and concentrated.The advantages are: using a "static bed + material" double-wave absorption system, achieving more uniform and stable temperature field distribution in the liquid layer of industrial waste fluorosulfuric acid, making the pyrolysis of industrial waste fluorosulfuric acid more efficient and stable.
Owner:HUBEI TIANYI PHOSPHORUS FLUORIDE TECH RES CO LTD +2

Flip-chip LED chip packaging structure

The utility model discloses a kind of flip LED chip packaging structures, including metal packaging substrate, flip LED chip group and encapsulation adhesive layer;The metal packaging substrate includes oppositely arranged front and back, the metal packaging substrate is equipped with multiple hollow parts that penetrate the front and back of the metal packaging substrate, multiple the hollow part is along the first direction of the metal packaging substrate interval arrangement;Along the first direction of the metal packaging substrate, the two sides of each the hollow part are respectively soldering area;The flip LED chip group includes at least one flip LED chip, the flip LED chip is located on the hollow part, and the electrode of the flip LED chip is formed electrically connected with the soldering area;The encapsulation adhesive layer at least covers the LED chip group.Adopted the flip LED chip packaging structure provided by the utility model, packaging cost is low, process is simple, and the power of the packaged device obtained by packaging is high.
Owner:FOSHAN EVERCORE OPTOELECTRONICS TECH

Method for setting the transmission system of molding equipment

This invention relates to a method and computer program for setting and / or starting the drive system of a molding apparatus, particularly an extruder, to a preset operating speed. Furthermore, this invention relates to a corresponding molding apparatus. The drive system (100) comprises a hydraulic piston cylinder unit (130), which includes a punch (132) for extruding material in the molding apparatus through a die (220). The piston cylinder unit (130) is connected to a pump assembly (110) via a hydraulic network (120). The pump assembly (110) includes at least one axial piston pump and an electric motor (M1) assigned to it for delivering hydraulic fluid to the piston cylinder unit via the hydraulic network. In order to save energy during the extrusion time of the forming equipment while the axial piston pump and the electric motor driving it are running, the method according to the invention specifies that the swing angle (α1) of the first axial piston pump (P1) and the rotational speed (n1) of the first electric motor (M1) and (if necessary) the swing angle (α2...) of the additional axial piston pumps are set or changed, so as to achieve the preset target operating speed (Vsoll) with the lowest possible overall efficiency.
Owner:SMS GROUP GMBH

Plastic shell motor structure

The utility model belongs to the technical field of brushless motors, in particular to a plastic shell motor structure, which comprises a rotor, a stator and a plastic shell integrally formed by injection molding, the radial section of the plastic shell is W-shaped, and the plastic shell comprises an outer shell part and an isolation part which completely isolate the rotor from the stator. An opening for assembling the rotor and the stator is formed in one side, opposite to the isolation part, of the shell part; when the stator and the rotor are fixed by the plastic shell, the stator and the rotor are separated, due to the rigid design of the plastic shell, accurate positioning of the stator and the rotor can be ensured, uniform air gaps between the stator and the rotor are ensured, and vibration, noise and efficiency reduction caused by eccentricity are avoided; the plastic shell can enhance the insulation grade and can meet the double insulation design, and the power can be higher under the same condition; even if more enameled wires are wound on the stator to increase the power of the motor, the stator still meets the safety requirement of the electrical clearance, so that the motor can safely operate under higher power.
Owner:YIZHU MOTOR SUZHOU CO LTD

Multi-point single-point gas-liquid double-injection methanol engine and control method

The invention discloses a multi-point single-point gas-liquid double-injection methanol engine. The multi-point single-point gas-liquid double-injection methanol engine is characterized in that an inlet of a gas inlet channel methanol gas rail is communicated with a first outlet of a methanol pump; the multi-point methanol nozzle group is arranged at the methanol gas rail of the gas inlet channel, and is used for spraying methanol liquid to a plurality of cylinder cover gas inlet channels corresponding to the multi-point methanol nozzle group; an inlet of the methanol evaporator is communicated with a second outlet of the methanol pump; an inlet of the gas methanol common rail is communicated with an outlet of the methanol evaporator; an inlet of the single-point methanol nozzle is communicated with an outlet of the gas methanol common rail; the single-point methanol nozzle is arranged on the methanol-air mixer and is used for spraying methanol gas into the methanol-air mixer, and the gas inlet end of the methanol-air mixer is communicated with the gas outlet end of the throttle valve; and the control system is in electrical data connection with the components. The methanol evaporation level can be improved by adjusting the injection amount of single-point injection of the air inlet channel, and the problem that the power and torque of a traditional methanol engine are difficult to improve due to insufficient evaporation heat is solved.
Owner:GUANGXI YUCHAI MASCH CO LTD

Power conversion device

A power conversion device includes: a first power circuit portion and a second power circuit portion each having a power semiconductor element and a plurality of conductor portions sandwiching the power semiconductor element and connected to an emitter and a collector of the power semiconductor element, respectively; and a flow path forming body accommodating the first and second power circuit portions and allowing a refrigerant to flow, the conductor portions on the emitter side of the first power circuit portion being arranged opposite to the conductor portions on the collector side of the second power circuit portion, and the conductor portions on the emitter side of the first power circuit portion and the conductor portions on the collector side of the second power circuit portion being connected by a plurality of electrically conductive fins in contact with the refrigerant.
Owner:HITACHI LTD

Medical wireless energy transmission system and implantable medical device

The application provides a medical wireless energy transmission system and an implantable medical device. The system comprises a first device end including a control unit, a phase reconstruction network and at least one pair of antennas arranged side by side; the control unit is connected to the phase reconstruction network, and the phase reconstruction network is connected to the at least one pair of antennas; in a positioning mode, the control unit controls the phase reconstruction network to input excitation signals with opposite phases into the pair of antennas to form an energy null region in space; during relative movement between the first device end and a second device end, when the antenna of the second device end is in the energy null region, a low signal is detected, and the control unit identifies whether the second device end is aligned with the first device end according to the low signal; in an energy transmission mode, the control unit controls the phase reconstruction network to input excitation signals with the same phase into the pair of antennas to form a signal enhancement region. The pair of antennas arranged side by side can realize alignment of the wireless energy transmission device and efficient wireless energy transmission at the same time.
Owner:SINOVATION (BEIJING) MEDICAL TECHNOLOGY CO LTD

Coordination regulation type high-stability aqueous organic flow battery and preparation method thereof

This disclosure provides a coordination-regulated, high-stability aqueous organic flow battery adapted for frequency regulation in thermal power energy storage and its preparation method. The preparation method includes: adding deoxygenated deionized water to organic anode active material and anode coordination regulator, introducing an inert gas, stirring, and adding a pH adjuster to adjust the solution pH, followed by stirring to form an anode electrolyte; adding deoxygenated deionized water to organic cathode active material and cathode coordination regulator, introducing an inert gas, stirring, and adding a supporting electrolyte, followed by stirring to form a cathode electrolyte; immersing an ion exchange membrane in a modification solution and stirring to obtain a modified membrane; immersing the modified membrane in an alkali metal solution to activate ion exchange sites; immersing the electrode in a doping solution for dispersion treatment and drying to obtain a doped electrode; using this doped electrode as the working electrode, a platinum sheet as the counter electrode, and a saturated calomel electrode as the reference electrode, and performing cyclic voltammetric activation in H2SO4 solution.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

A high power density permanent magnet motor for drones

This invention relates to the field of motor technology and discloses a high-power-density permanent magnet motor for unmanned aerial vehicles (UAVs). The motor includes a stator with a winding section and a frequency conversion section. The winding section is arranged in a ring array around the center of the stator, allowing for different coil combinations on a single winding. The winding section includes slots A, B, and C. Slot A is located on the inner wall of the stator, while slots B and C are located on the stator itself. The inner wall of the stator also has inlet holes A, B, and C. Inlet holes A and B communicate with slot A, and inlet holes B and B communicate with slot B. The motor employs a wide-range speed control to adapt to UAV operating conditions, featuring a six-speed adjustment function. The rated speed ranges from 8 r / min (8 Hz) to 48 r / min (48 Hz), and the speed ratio can reach 1:8 during weak field operation. This allows for precise matching of the power requirements of different stages of UAV operation, such as takeoff, cruise, and high-speed flight, achieving full operating condition coverage without motor replacement.
Owner:BAOTOU CHANGAN PERMANENT MAGENT MASCH CO LTD

Quartz boat and processing equipment

The invention relates to the technical field of solar cell creation, and particularly discloses a quartz boat and processing equipment, the quartz boat comprises a main body, the main body comprises a first support column and a second support column which are arranged at intervals along the horizontal direction, and a plurality of placing grooves which are arranged along the vertical direction are formed between the first support column and the second support column; the placing grooves comprise a plurality of first placing grooves and second placing grooves which are alternately arranged in the vertical direction, each of the first placing grooves and the second placing grooves comprises a wide-distance end and a narrow-distance end which are located on the two sides of the first placing grooves and the second placing grooves in the horizontal direction, and in the same placing groove, the width of the wide-distance end in the vertical direction is larger than that of the narrow-distance end in the vertical direction; the wide-distance end of the first containing groove and the narrow-distance end of the second containing groove are both located on the side where the first supporting column is located or the side where the second supporting column is located. When the quartz boat disclosed by the invention is applied to processing equipment, the quartz boat has relatively high production efficiency and relatively good process uniformity, the product yield is increased, the efficiency distribution of produced and manufactured solar cells is more uniform, and the module power is effectively improved.
Owner:ZHEJIANG AIKO SOLAR ENERGY TECH CO LTD +4