34results about How to "Improve energy conversion efficiency" patented technology

This invention discloses a method for fabricating a highly sensitive long-wavelength infrared superconducting single-photon detector. It fully utilizes and amplifies the acoustic mismatch effect between the superconducting thin film and the substrate to achieve phonon localization enhancement on the superconducting nanowires. The effect of this innovative design is to increase the energy utilization rate of long-wavelength infrared photons on the superconducting nanowires, thereby improving the response sensitivity of the superconducting nanowires to long-wavelength infrared photon signals. Compared to existing designs that reduce the cross-sectional size of the superconducting nanowires, create holes beneath the nanowires, or increase the buffer layer, this invention is easier to implement and has higher scalability.

This invention provides a surface acoustic wave (SAW) filter, comprising a piezoelectric layer and interdigitated electrodes. The interdigitated electrodes are disposed on the piezoelectric layer and include at least a first metal layer and a second metal layer stacked together. The first metal layer is made of platinum or an alloy with platinum as the main component, and the second metal layer is made of aluminum or an alloy with aluminum as the main component. By setting the material of the second metal layer to aluminum or an alloy with aluminum as the main component, the uniformity of metal coverage of the electrode structure can be effectively improved, avoiding excessive local resistance or structural defects caused by poor coverage. Setting the material of the first metal layer to platinum or an alloy with platinum as the main component provides reliable support for the second metal layer, reducing the risk of deformation or corrosion of the aluminum layer in subsequent processes. By using a stacked structure of two complementary materials for the interdigitated electrodes, both structural miniaturization and improved overall electrical performance and structural reliability of the interdigitated electrodes are achieved.

The application discloses a new energy electric drive system of a novel green intelligent carrying frame, which comprises a multi-source energy supply module, an intelligent driving module, an energy efficiency control module, an energy recovery module and a communication interaction module.The multi-source energy supply module is used for supplying energy under different working conditions for the carrying frame.The intelligent driving module is used for driving walking mechanisms arranged on both sides of the carrying frame.The energy efficiency control module is used for generating a dynamic energy consumption adjustment decision by using an energy consumption optimization algorithm and sending the decision to the multi-source energy supply module and the intelligent driving module.The energy recovery module is used for monitoring the running state of the carrying frame in real time to start an energy recovery process and output electric energy to the multi-source energy supply module.The communication interaction module is used for establishing an information transmission channel between the intelligent driving module, the energy efficiency control module and a warehouse intelligent scheduling system.The novel green intelligent carrying frame has the remarkable effects that the green environmental protection, energy utilization efficiency and intelligent operation capacity of the carrying frame are remarkably improved through multi-element new energy collaborative power supply, full-working-condition high-efficiency driving, intelligent energy efficiency control and precise energy recovery.

This utility model relates to a highly integrated powertrain mechanism for a pure electric all-terrain vehicle, including a motor and a cooling water circulation channel. The power output end of the motor is connected to the gearbox of the all-terrain vehicle. The motor is equipped with a first housing and a second housing. The cooling water circulation channel is connected in series inside the motor, the first housing, and the second housing. The inlet and outlet ports of the cooling water circulation channel are connected to the water-cooling system of the all-terrain vehicle. The first housing houses an on-board charger and an on-board power converter, while the second housing houses a motor controller and a power distribution unit. The wiring between the motor and the first housing uses a stacked busbar and a PCB harness, and the wiring between the first and second housings also uses a stacked busbar and a PCB harness. This highly integrated powertrain mechanism for a pure electric all-terrain vehicle integrates existing pure electric all-terrain vehicles into a coordinated whole, resulting in high energy conversion efficiency and strong power performance.

The embodiment of the present application provides a perovskite solar cell and a perovskite solar cell module, the perovskite solar cell comprising: a light absorption layer, an up-conversion layer, a first conductive layer and a second conductive layer for collecting opposite type carriers, and a first transport layer and a second transport layer for transporting opposite type carriers, the first conductive layer being a transparent conductive layer, wherein the first transport layer is arranged between the first conductive layer and the light absorption layer, the second transport layer is arranged between the up-conversion layer and the second conductive layer, and the up-conversion layer is arranged on the side of the light absorption layer away from the first transport layer; the up-conversion layer is a halide perovskite structure member of a light-emitting dopant, and the light absorption layer is a perovskite structure member. The energy conversion efficiency of the perovskite solar cell can be effectively improved.

The application belongs to the field of organic photovoltaics, and relates to a kind of polymer photovoltaic material and its preparation method and application. Double bromide compound A and double side tin compound B are subjected to Stille cross coupling reaction under the action of palladium catalyst, and the polymer photovoltaic material is obtained. The polymer photovoltaic material prepared by the application has an ultra-wide absorption spectrum range from 300 nm to 1200 nm. Such material exhibits an ultra-wide spectral range and a high extinction coefficient, and embodies excellent light absorption capacity. The strong light absorption capacity of the polymer photovoltaic material prepared by the application will help to improve the device efficiency of organic photovoltaics and improve the energy conversion efficiency of the device. The polymer photovoltaic material prepared by the application provides reference value for the design of functional materials in many fields of organic photoelectricity and solar energy utilization and conversion.

This utility model discloses a piezoelectric ceramic air pump drive circuit, belonging to the technical field of piezoelectric ceramic air pump control. The circuit includes a main control processing unit, a program download unit, a low-dropout voltage regulator unit, an H-bridge piezoelectric ceramic air pump drive unit, and a DC-DC boost unit. The input terminals of the low-dropout voltage regulator unit and the DC-DC boost unit are connected to an external power supply, providing a stable low-voltage operating power supply to the main control processing unit and a high-voltage power supply to the H-bridge piezoelectric ceramic air pump drive unit. The H-bridge piezoelectric ceramic air pump drive unit uses complementary metal-oxide-semiconductor field-effect transistors to construct a full-bridge topology. The main control processing unit outputs complementary pulse width modulation signals to control the switching of the transistors in the H-bridge, generating a high-voltage alternating drive signal at the interface connecting to the air pump. This utility model features high integration, flexible control, and high drive efficiency, making it suitable for piezoelectric ceramic air pump applications requiring high-voltage, high-frequency drive.

This utility model discloses a core structure for a high-energy ignition coil used in automobiles, including a core structure installed inside the ignition coil housing. The core structure comprises a magnetic sheet, a primary coil, a secondary coil, and a toroidal core. The magnetic sheet is embedded in the primary coil, which is interference-fitted into the secondary coil. The toroidal core simultaneously surrounds both the primary and secondary coils and is tightly fitted to the magnetic sheet. The end of the primary core furthest from the magnetic sheet is tightly fitted against the toroidal core. The closed magnetic circuit structure of the toroidal core concentrates the magnetic field almost entirely within the core, resulting in minimal magnetic leakage, uniform magnetic field distribution, low magnetic reluctance, and high magnetic flux density. This leads to high energy conversion efficiency, minimal energy loss, and the efficient energy conversion capability enables the ignition coil to generate higher secondary voltage and stronger spark energy. It is suitable for lean-burn and high-performance engines, ensuring reliable ignition and better fuel economy.

The application provides a light frequency comb generation device and method based on a series double microcavity structure. The device comprises a pump laser, an optical amplifier, a polarization controller, a first tapered lens fiber, a series double microcavity structure and a second tapered lens fiber connected in sequence. The second tapered lens fiber is connected to a spectrum analyzer and an oscilloscope through a first coupler. The optical amplifier is used to amplify the power of the output laser of the pump laser to reach the power threshold required for microcavity light frequency comb generation. The polarization controller is used to adjust the polarization mode of the output laser of the optical amplifier so that the polarization mode of the laser is the same as the polarization mode of the microcavity light frequency comb to be generated. The series double microcavity structure comprises a bus waveguide and two microcavities coupled thereto and is used to generate a light frequency comb. The application can solve the technical problems of high pump power, low energy conversion efficiency and low parameter selection freedom of the existing light frequency comb based on a single microcavity structure.

This utility model discloses a control circuit for driving a mobile robot, including a charger module, a power supply module, a communication module, a control module, an IMU module, and an interface module. The power supply module includes a power switching module, a power filtering and voltage regulation module, a power management module, a power monitoring module, and a key switch for a host computer. The power management module includes a power control module and a power distribution module. The power control module receives voltage requirements from different circuit components and transmits them to the power distribution module. The power distribution module converts the input voltage into a specific output voltage to meet the needs of different circuit components. Through high-speed data transmission, coordinated and precise control, and real-time status feedback between the power supply module, control module, and communication module, the dynamic stability of the mobile robot's drive control, the response speed of the mobile robot, and its endurance are improved.

The utility model discloses a kind of cross charge-discharge systems of power generation and power battery of range-extender new energy vehicle, it is related to new energy vehicle field, including range-extender, controller, power battery A, power battery B, inverter, electric drive bridge and energy recovery device, the range-extender is electrically connected with power battery A, power battery B, power battery A, power battery B is electrically connected with electric drive bridge by inverter respectively, the energy recovery device is arranged in electric drive bridge, the energy recovery device is electrically connected with electric drive bridge by inverter, the energy recovery device is electrically connected with power battery A, power battery B, the range-extender, power battery A, power battery B, electric drive bridge, energy recovery device are all connected with controller communication by CAN bus, the utility model is alternated by double battery charge-discharge architecture, dynamic power distribution strategy, improve the service life of battery, increase energy utilization efficiency.

The utility model relates to the technical field of compressed air energy storage, in particular to a channel heat exchange device and a compressed air energy storage system. A gas transmission channel is formed in the device body; the two ends of the air conveying channel are connected with air conveying pipelines correspondingly and used for introducing compressed air. A spraying system is arranged at the top of the air conveying channel and used for spraying vaporific liquid drops, and heat exchange is conducted between the vaporific liquid drops and compressed air; a collecting device is arranged at the bottom of the gas conveying channel and used for collecting liquid obtained after heat exchange is completed. Therefore, the problems that the heat exchange efficiency cannot be effectively improved, the energy utilization rate and the overall performance of the compressed air energy storage system are reduced, the use experience of a user is affected and the like due to temperature difference limitation and low heat transfer efficiency between heat exchange media in related technologies are solved.

This utility model discloses a bearing assembly structure for a rotor motor, including a housing, a motor spindle, and a rotor. The housing houses a stator assembly and a rotor assembly arranged opposite to each other. The motor spindle is located inside the housing, and its output end is coaxially connected to the rotor to drive its rotation. A support base is located at the head of the housing, and a cover is mounted on the support base. The shaft of a DC brushless motor is connected to the air-jet spinning rotor assembly, transmitting the rotational power generated by the motor to the rotor. The motor speed can be precisely controlled by changing the input voltage or current to meet the needs of different spinning processes, improving production efficiency and yarn quality. It features high efficiency, fast response, and high stability. The bearing design provides a larger support area, significantly reducing vibration and offset of the motor spindle during high-speed rotation, thereby improving the concentricity and operational stability of the rotor.

This utility model relates to the field of electronic device technology, specifically to a low-loss solid-state capacitor, comprising a package housing, a core package disposed within the package housing, and two leads mounted on the core package. The core package is composed of multiple stacked capacitor units, each capacitor unit including a cathode foil and an anode foil disposed above the cathode foil. An electrolyte layer is disposed between the cathode foil and the anode foil. Multiple micropores are disposed on the side of the anode foil near the electrolyte layer to increase the contact area between the anode foil and the electrolyte layer and reduce the equivalent series resistance. A heat dissipation coating is disposed on the outer surface of the package housing for cooling the capacitor during operation, and a silver-tin alloy layer is disposed on the surface of the leads. Multiple heat dissipation protrusions are fixedly mounted on the outer surface of the package housing. This utility model has the advantages of low loss, reduced energy waste, and extended service life.

The application relates to the technical field of multi-source flexible grid connection, and discloses a storage multi-module cooperative energy conversion efficiency increasing system and method, the method comprising the following steps: high-frequency sampling of load change data at a load end, and collecting operation state data of each energy conversion unit; time scale analysis of energy change characteristics at the load end, and calculation of dynamic characteristic strength representing rapid energy change; judging whether there is significant energy fluctuation at the load end; if yes, constructing a dynamic response strategy for the load end, comprising the following steps: calculation of dynamic response adaptation indexes of each energy conversion unit; screening of response adjustment units, and calculation of adjustment task weights of each response adjustment unit; based on the corresponding adjustment task weights, controlling each response adjustment unit to perform dynamic response adjustment on the load end. The application can improve the overall conversion efficiency and operation stability of a solid-state transformer in the scene of flexible grid connection and multi-load direct connection.

The utility model provides a kind of wave energy efficient extraction conversion device, its structure includes: wave body, telescopic hydraulic system and support frame three parts;Wherein, wave body is a plate-like hinge structure that can be telescopic deformation before and after, under the surging impact of wave, this structure can carry out telescopic reciprocating motion before and after in horizontal direction, to drive telescopic hydraulic system to convert wave energy into hydraulic energy, for people to use.The wave energy extraction conversion device described in the utility model can efficiently extract and convert wave energy on the section perpendicular to the wave energy transmission direction, and the device is easy to operate, reliable, strong in applicability, low in cost, can dissipate wave, reduce wave, protect bank and dike while extracting and utilizing wave energy;Its invention provides a powerful new means for human to tame and harness inexhaustible wave energy, and opens up a new way to meet the growing demand of human for green renewable energy.

The application relates to the technical field of semiconductor devices, in particular to a high-efficiency SiP power module which comprises a ceramic substrate, a metal frame, a metal cover plate and a plurality of power units; each power unit comprises a MOSFET, a transformer, a high-voltage capacitor and a high-voltage diode, an NTC thermistor, a PTC thermistor, an electrically-controlled variable resistor, a voltage-dividing resistor, a filter capacitor and a micro MCU; the NTC thermistor is connected in series on a source path of the MOSFET and is connected through a voltage-dividing circuit and the micro MCU; the PTC thermistor is connected in parallel with the source and the drain of the MOSFET; the micro MCU outputs a resistance value adjustment amount of the electrically-controlled variable resistor by analyzing voltage and resistance change conditions in the circuit, and adjusts the resistance value of the electrically-controlled variable resistor by using the resistance value adjustment amount. The application improves the heat management capability of the SiP power module and avoids local temperature imbalance.

This invention discloses a combined solar power generation and gravity energy storage power supply system and method. The power supply system includes a solar power generation system, a gravity energy storage system, and an intelligent control system. The intelligent control system presets a power generation threshold and dynamically controls the gravity energy storage system to store or release energy based on the difference between the real-time solar power generation and the threshold, thus stabilizing the combined output power. The gravity energy storage unit adopts a symmetrical double-sloped support tower and a dual energy storage structure design, achieving bidirectional conversion between electrical energy and gravitational potential energy through a clutch mechanism. The intelligent control unit dynamically adjusts the floating threshold based on predicted wind speed and historical power fluctuation rate, improving the system's adaptability to different wind fields. The coordinated control of power generation and energy storage solves the intermittency problem of wind power generation, reduces the amplitude of output power fluctuations, and the bidirectional energy conversion mechanism can achieve peak shaving and valley filling, releasing energy to supply power during peak electricity demand and storing energy during off-peak times, improving the overall energy efficiency of the power grid and avoiding energy waste.

This invention specifically relates to a distributed power management strategy for a hybrid electric propulsion system for electric aircraft, belonging to the field of aviation electrification. The system consists of a fuel cell, an energy storage battery, and a supercapacitor connected in parallel to a DC bus via a power converter. In this invention, each unit is independently controlled based on local information, eliminating the need for a communication network: the fuel cell adaptively switches between voltage and power modes according to the load power and battery state of charge, avoiding heavy or light load operation; the battery adjusts its steady-state operating point through a virtual resistance droop mechanism, absorbing steady-state power deficits or excess power; the supercapacitor absorbs dynamic power through a virtual capacitance droop mechanism, suppressing load fluctuations. This invention effectively suppresses the negative impacts of heavy / light loads, load fluctuations, and frequent start-stop cycles on fuel cell lifespan and efficiency, reduces hydrogen consumption, and improves overall system reliability.

This invention discloses an electromagnetic ultrasonic transducer, monitoring system, and method for in-situ flaw detection of high-temperature welds, including an adjustable magnetic circuit mechanism and a multi-channel coil assembly. The adjustable magnetic circuit mechanism can flexibly adjust the distance between the magnetic field generator and the coating on the surface of the high-temperature weld to adapt to the optimal working magnetic field of the coating. The multi-channel coil assembly includes at least two mutually insulated independent coils, each forming an independent detection channel. The size of the independent coil is adapted to the bottom surface size of the magnetic field generator, enabling localized centralized detection. This invention solves the technical problems of existing electromagnetic ultrasonic transducers, such as limited transduction efficiency due to the mismatch between the magnetic field strength and the optimal working magnetic field required by the magnetostrictive coating, and insufficient sensitivity for detecting minute defects due to the excessively large acoustic field area of ​​a single coil structure. It improves the stability and reliability of the transducer in high-temperature environments, achieving efficient and accurate in-situ flaw detection of high-temperature welds.

The application provides a polymeric electrode material and a preparation method and application thereof. The electrode material I has high coulomb efficiency, improves energy conversion efficiency of a flow battery, improves economy and service life of the flow battery; the electrode material I also has good antistatic capacity, solves the problem of static electricity accumulation of the electrode material in a charging and discharging process of the flow battery, and improves performance and safety of the flow battery.

The utility model relates to the flywheel energy storage technical field, and disclose a kind of flywheel energy storage device of reducing power consumption, including upper motor and energy storage mechanism, the upper motor and energy storage mechanism are communicated to form vacuum cavity, the rotating joint of the shaft that the bottom end extends to the inside of energy storage mechanism is connected in the inside of the upper motor, the inside fixedly connected with the sealing cover of the bottom and energy storage mechanism fixed connection of the upper motor, the sealing cover is sleeved in the outside of shaft, the upper motor includes upper casing;This flywheel energy storage device of reducing power consumption can solve the problem of motor temperature rise caused by low heat dissipation coefficient of excitation winding and large rotor eddy current loss, the problem of high self-discharge rate caused by permanent magnet suspension flywheel rotor, the problem of high manufacturing cost caused by winding potting, improve the stability, security in the process of flywheel energy storage system use, reduce flywheel energy storage system cost.

A novel tapless resonant push-pull photovoltaic energy storage inverter topology is disclosed, relating to the field of energy storage system topology control technology, specifically a novel tapless resonant push-pull photovoltaic energy storage inverter topology. It includes a photovoltaic boost MPPT circuit, a DC-AC bidirectional inverter circuit, and a battery-side DC-DC tapless resonant push-pull bidirectional isolated charging circuit. The photovoltaic boost MPPT circuit is used to increase the DC voltage of the photovoltaic panels and perform maximum power point tracking control. The DC-AC bidirectional inverter circuit performs bidirectional DC-to-AC conversion through three independent T-type three-level circuits, each independently controlled, with low harmonic output current. The battery-side DC-DC tapless resonant push-pull bidirectional isolated charging circuit includes a tapless transformer and a push-pull circuit. Through innovative tapless resonant push-pull circuit, dual-transformer interleaved control technology, and three-level inverter circuit design, it achieves efficient power conversion, optimized battery charge and discharge management, and reduced high-frequency ripple and electromagnetic interference, thereby improving the overall efficiency, stability, and reliability of the photovoltaic energy storage system.

The application provides a polyaniline-zinc ion battery with continuous replacement of electrolyte, which comprises a first liquid tank, an electric pile and a second liquid tank which are in communication with each other, the first liquid tank and the second liquid tank respectively store high-concentration and low-concentration zinc salt aqueous solutions, the electric pile comprises a polyaniline active layer, a first porous separator and a zinc layer which are adjacent in sequence, the polyaniline active layer is close to the first liquid tank, and the zinc layer is close to the second liquid tank. The polyaniline-zinc ion battery does not need an ion exchange membrane, and the electrolyte in the electric pile can be continuously replaced during charging and discharging, so that the concentration difference polarization is eliminated, the chemical equilibrium of the electrochemical reaction is promoted to move in a favorable direction, the charging and discharging voltage difference of the battery is reduced, the energy efficiency is improved, and the service life is longer.

The application relates to a vanadium flow battery energy storage power distribution method, device and system, and relates to the technical field of energy storage energy management. The method comprises the following steps: performing online parameter identification processing on an acquired equivalent loss model to determine battery identification parameters of a plurality of battery groups; determining the health states of the plurality of battery groups according to the battery identification parameters, original battery resistances and resistance values at a time of scrapping; determining the charging and discharging priorities of the plurality of battery groups according to the battery states of charge and the health states; selecting a plurality of target battery groups participating in power distribution from the plurality of battery groups according to total scheduling demand power and the charging and discharging priorities; determining a multi-objective function with the minimum battery working loss, the minimum state of charge uniformity and the minimum total life loss as targets according to the battery identification parameters and the battery states of charge, and constructing a multi-objective optimization model; and solving the multi-objective optimization model based on constraint conditions to obtain target power distribution results of the plurality of target battery groups.

The application discloses a kind of pie-shaped coil and solenoid combined drive's two-stage acceleration electromagnetic coil gun, including coil gun mechanical device and for controlling the control system of coil gun mechanical device, the coil gun mechanical device includes cannon barrel solid section, pie-shaped coil, solenoid, laser shot type photoelectric sensor, for installing the cannon barrel hollow section and base assembly of bearing cannonball, the control system includes charging circuit, trigger circuit and discharge circuit, the pie-shaped coil realizes to cannonball armature first stage acceleration, the solenoid realizes to cannonball armature second stage acceleration.The application can realize to electromagnetic gun multistage acceleration launch drive.

A beta ray three-dimensional emission source with high emissivity, comprising a flexible substrate with a three-dimensional pyramid structure, a high polymer adhesion layer on the surface of the flexible substrate, and metal particles on the high polymer adhesion layer 63 The Ni particles are adsorbed on the surface of the flexible substrate; the preparation method comprises the following steps: obtaining a substrate with a three-dimensional pyramid structure on the surface, modifying a high polymer adhesion layer on the obtained substrate with a three-dimensional pyramid structure on the surface, and obtaining a three-dimensional beta ray emission source with high emissivity; application: used for being arranged on the surface of a micro beta battery converter, and continuously emitting beta rays through the three-dimensional structure 63 The Ni metal layer continuously decays and continuously emits beta rays; the beta radiation battery has the characteristics of low output power, high energy conversion efficiency, high energy density, high raw material utilization rate, wide application scene, and low reaction temperature.

The utility model provides a kind of range extender system.The range extender system includes: engine, including engine body, flywheel, flywheel shell and pivot, flywheel shell cover is set in flywheel outside;Generator, including casing, stator part, rotor part and support, stator part is fixed in casing, rotor part is set on support, to rotate with support relative to stator part;Wherein, casing is connected with engine body by flywheel shell, support is connected with pivot by flywheel.The utility model effectively solves the problem that the mode that engine and generator are connected by coupling in prior art not only influences the operation reliability of range extender system, but also leads to the problem that the volume and weight of range extender system are relatively large.

The utility model relates to lithium cell technical field, concretely is a kind of constant-current constant-voltage heating pad control circuit based on PWM. Including asynchronous buck circuit, gate drive circuit, voltage control drive circuit, PWM control circuit, MCU chip, the LCSG_DriveA0 port of asynchronous buck circuit, LCSG_DriveB0 port are sequentially connected the LCSG_DriveA0 port of gate drive circuit, LCSG_DriveB0 port, the VSamp port of asynchronous buck circuit is connected the VSamp port of PWM control circuit, the CON_PWM port of gate drive circuit is connected the CON_PWM port of PWM control circuit, the REF_PWM port of voltage control drive circuit is connected the VRef port of PWM control circuit, the one PE pin of MCU chip is connected the HEAT_OFF port of gate drive circuit, another PE pin of MCU chip is connected the CL_PWM port of voltage control drive circuit. Compared with prior art, realize the dynamic regulation of heating pad current, ensure that constant-current constant-voltage output is to heating pad both ends, improve energy conversion efficiency.