20results about How to "Reduce performance degradation" patented technology

This invention proposes a structure, assembly method, and a laminated pole synchronous motor for improving the heat dissipation capacity of the damping strip in a laminated pole synchronous motor. It belongs to the field of laminated pole synchronous motors. The invention solves the problem of how to effectively improve the heat dissipation capacity of the damping strip in a laminated pole synchronous motor. The heat dissipation structure consists of multi-layered fins welded to the damping strip of the laminated pole synchronous motor. A graphene coating is sprayed onto the fins and damping strip. The damping strip has a hollow structure filled with phase change material. One end of the damping strip is fixed to a damping ring, and the other end is connected to the pole core. Heat dissipation fins are provided at the bottom of the damping ring. This invention employs a composite heat dissipation system of "internal phase change flow heat transfer + fins + damping ring heat dissipation fins": internally, the phase change cycle of the phase change material promotes uniform heat distribution; externally, the heat dissipation fins on the surface of the damping strip and the integrated heat dissipation fins of the damping ring form a three-dimensional heat dissipation network, significantly accelerating the transfer of heat from the damping winding to the external environment.

A TFDM-PON system correction method and device, including OLT receiving ONU based on time division multiplexing or time-frequency division multiplexing sends double polarization signal, it includes target signal sequence corresponding with X / Y polarization, and target signal sequence is IQ period complex signal and its I road and Q road are single tone signal of first frequency and second frequency respectively;Based on the Fourier transform of double polarization signal and frequency domain symmetry, calculate target parameters including target transceiver frequency offset, target transmitting terminal, receiving terminal IQ delay and target power deviation between each ONU, make ONU correct frequency, delay and power according to target parameters, eliminate subcarrier crosstalk caused by frequency offset in TFDM uplink burst transmission, image crosstalk caused by IQ imbalance and performance degradation caused by subcarrier power imbalance, reduce bit error rate, improve system robustness.

This utility model discloses a formation fixture for silicon-carbon anode batteries, comprising several clamping plates, each clamping plate having tooling components on its front and back sides; buffer structures are provided on the front and rear side walls of the tooling components; a first pressure plate and a second pressure plate are respectively provided on the front and rear sides of all clamping plates, a first side plate is provided on the outer side of the second pressure plate, and a second side plate is provided on the outer side of the first pressure plate; first guide rods are evenly arranged on the left and right sides of the first side plate, with the axial outer ends of the first guide rods connected to the first pressure plate located on the other side of the clamping plate; second guide rods are evenly arranged on the left and right sides of the second side plate, with the axial outer ends of the second guide rods connected to the second pressure plate located on the other side of the clamping plate; a first driving component is provided on the first side plate, and a second driving component is provided on the second side plate. This utility model helps to solve the problem that some current formation fixtures do not have tooling restraint structures adapted to the battery, resulting in unstable clamping effects and thus affecting the battery formation quality.

This invention belongs to the field of batteries, specifically a single-cell battery and a high-capacity battery, overcoming the technical difficulties of high cost and heavy weight in existing high-capacity batteries. The single-cell battery includes a casing, which is formed by an upper cover plate, a cylindrical body, and a lower cover plate. The upper cover plate, cylindrical body, and lower cover plate are all made of plastic, and their strengths are all P, where P1≤P≤P2. P1 represents the strength requirement of the casing during the formation stage and normal charge / discharge stages; P2 represents the strength requirement of the casing during thermal runaway. At least one of the upper cover plate, cylindrical body, and lower cover plate has a sub-tube segment, which communicates with the inner cavity of the casing. The high-capacity battery includes a pressure-bearing casing and single-cell batteries arranged within the pressure-bearing casing. Corresponding sub-tube segments in adjacent single-cell batteries are sealed and connected to form a shared pipeline. The single-cell battery of this invention is low in cost and lightweight, and the pressure-bearing casing meets the strength requirements of the casing during thermal runaway.

The utility model relates to dish washer technical field discloses dish washer, including washing system and heat exchange system, washing system includes water tank and washing pump, and water tank and washing pump intercommunication, heat exchange system includes working medium compression unit and refrigerant circulation pipeline, working medium compression unit includes air inlet and exhaust port, refrigerant circulation pipeline includes heating pipe and cooling pipe, heating pipe is located in water tank, and one end communicates with the exhaust port of working medium compression unit, and the other end communicates with cooling pipe, cooling pipe surrounds and sets up in the outer periphery of washing pump, and communicates with the air inlet of working medium compression unit, the utility model utilizes the refrigerant of higher temperature to heat the washing water in water tank, and the pump body is cooled with the help of the refrigerant of temperature reduction, reaches the high -efficient heat dissipation of pump body, and the both are synchronous, not only satisfy the requirement to water temperature in the washing process, guarantee the normal stable operation of washing pump, but also improved the comprehensive utilization of energy, reduced overall energy consumption, realized the dual goal of energy -conserving and high -efficient operation.

This invention belongs to the field of batteries, specifically a high-capacity battery assembly. It overcomes the technical challenges of high cost and heavy weight inherent in existing high-capacity batteries. The assembly includes a pressure-bearing casing and a high-capacity battery and heat exchange device located within the casing. The high-capacity battery comprises a shared pipeline and n individual cells arranged along the x-direction, with their internal cavities connected by the shared pipeline. Each individual cell has a plastic casing with a strength P, where P1 ≤ P ≤ P2. P1 represents the strength requirement of the casing during the formation stage and normal charge / discharge stages, while P2 represents the strength requirement during thermal runaway. The pressure-bearing casing has a vent connected to the shared pipeline. The heat exchange device is located at the top of the high-capacity battery, with the polarity terminals of each individual cell passing through it. Compared to finished battery cells, the individual cells of this invention offer advantages in terms of light weight and low cost.

The application relates to the field of batteries and discloses a solid-state electrolyte precursor and a lithium metal battery. The solid-state electrolyte precursor is characterized in that the solid-state electrolyte precursor comprises a ternary eutectic solvent, an ether monomer, a fluorine ether diluent and a lithium salt; the ternary eutectic solvent comprises lithium bistrifluoromethylsulfonylimide, a Lewis acid and a Lewis base; and the molar ratio of the lithium bistrifluoromethylsulfonylimide and the Lewis acid is 1:0.01-5. The solid-state electrolyte precursor contains a specific ternary eutectic solvent, a lithium metal battery containing a deep eutectic solid-state electrolyte obtained by in-situ polymerization of the solid-state electrolyte precursor has good interface stability, the generation of lithium dendrites is inhibited, the lithium metal cycle stability is high, and the safety performance is more excellent.

This invention provides a high-temperature resistant superhydrophobic micro / nanostructure coating and its preparation method. The coating is constructed on a substrate surface and includes an adhesive underlayer and a functional surface layer located on the surface of the adhesive underlayer. The adhesive underlayer contains phenyl silicone resin, and the functional surface layer contains superhydrophobic particles, phenyl silicone resin, and carbon fiber shear tubes. The carbon fiber shear tubes form a micron-scale framework structure, and the superhydrophobic particles form a nano-scale rough structure; together, they constitute a hierarchical micro / nanostructure. This invention forms an inorganic-organic hybrid high-temperature resistant superhydrophobic micro / nanostructure coating by synergistically constructing superhydrophobic particles, phenyl silicone resin, and carbon fiber shear tubes on the substrate surface. The superhydrophobic particles provide a high-temperature resistant hydrophobic base, the phenyl silicone resin provides a high-temperature resistant bonding effect, and the carbon fiber shear tubes provide structural reinforcement. Therefore, the resulting coating possesses both good thermal stability and structural stability, and can mitigate performance degradation under high temperatures.

The utility model discloses a remote monitoring device of an integrated pump station, which comprises a protective box, the inner surface of the protective box is fixedly connected with monitoring equipment, the front surface of the monitoring equipment penetrates to the front surface of the protective box, the upper surface of the protective box is communicated with an air pipe, the inner surface of the air pipe is fixedly connected with a support, the inner surface of the support is fixedly connected with a first motor, and the first motor is fixedly connected with a second motor. The output end of the first motor is fixedly connected with fan blades, the side surface of the air pipe is communicated with a connecting pipe, the upper surface of the protection box is fixedly connected with a treatment box, the other end of the connecting pipe is communicated with the treatment box, the rear surface of the treatment box is communicated with a backflow pipe, and the other end of the backflow pipe is communicated with the protection box. The problems of corrosion, short circuit and the like caused by the fact that moisture enters the monitoring equipment can be prevented, the temperature of air passing through the refrigeration plate can be reduced, then the heat dissipation effect of the equipment can be improved, and the equipment can operate under the more suitable temperature condition.

The utility model discloses a kind of BWRFP electric power pipes that cable can be positioned, the utility model relates to electric power engineering technical field, including electric power pipeline and cable, two groups of electric power pipeline are provided with connecting head between them, two groups of rectangular grooves are opened in the inner wall of connecting head, two groups of rectangular grooves are all movably installed with threaded rod, the utility model has the advantages that: through this device, cable can be accurately positioned during laying, reduce the repeated construction or adjustment caused by improper cable position, to significantly improve construction efficiency, while it can be ensured that cable is fully protected in electric power pipe, avoid mechanical damage caused by external force during laying or use, cable can also be avoided to be exposed outside pipe at both ends, cable can be effectively prevented from being affected by rain, humidity, corrosive environmental factors, to prolong the service life of cable, to enhance cable protection performance.

The driver risk cognitive state recognition method based on heterogeneous modal knowledge distillation belongs to the technical field of data analysis and processing. The problem that there is no technical scheme that can meet the following requirements at the same time is solved: first, the generation process of the risk label can be constrained by the physiological response of the driver; second, the "external scene risk knowledge" can be effectively migrated to the "non-contact facial / physiological modal"; third, when facing new drivers who have not participated in training, rapid individualization adaptation can be achieved through a small number of high-confidence samples. The method comprises the following steps: multi-source data acquisition and time synchronization, physiological event detection and backtracking annotation, multi-evidence fusion risk-induced SCR event determination, risk cognitive sample construction, teacher network construction and training, student network construction and distillation training, and weakly supervised individualization fine-tuning for unseen drivers.

This utility model discloses an air supply system, which includes a main pipe and at least two sets of air supply units. Each air supply unit includes an air compressor and a dryer. A first branch pipe is provided connecting the air compressor and the dryer, and a second branch pipe is connected in parallel with the first branch pipe. The main pipe is sequentially connected to the air supply units. When one air compressor or dryer fails, the equipment in other air supply units can continue to work. If the air compressor of one air supply unit fails, the air compressors of other air supply units can continue to supply air to the dryer of that air supply unit through the main pipe. This avoids the entire system from shutting down due to a single equipment failure, reduces downtime caused by equipment maintenance or failure, improves the overall operating efficiency of the system, avoids the situation of some equipment operating under overload for a long time in the traditional one-to-one single-pipe mode, and improves the output quality of compressed air.

This invention discloses a missing modality adaptive modeling method for multimodal dialogue intent understanding. It constructs a hierarchical prompting and multi-level distillation model for multimodal intent understanding. A scene-level prompt generator decomposes and unifies different modality missing scenarios into a single semantic space, and contrastive learning is used to improve alignment. An instance-level adaptive prompter utilizes a cross-attention mechanism to integrate sample-specific features into scene-level prompts. A multi-level knowledge distillation teacher-student network module achieves full-layer knowledge transfer, fully utilizing all available modality samples. The method's core design concept is "dynamic prompting adapts to missing modes, and multi-level distillation transfers cross-modal knowledge." Through the synergy of a modular architecture and standardized processes, it achieves robust semantic modeling of multimodal data such as text, images, and audio in modality missing scenarios.

The application provides a kind of based on image registration's underground garage ROI monitoring area dynamic calibration method and system, method includes: step S1: the monitoring picture of the camera obtained is regarded as reference image, and ROI region is demarcated;Step S2: the feature points of current picture and reference image are extracted and matched, and conversion matrix is calculated based on the feature point pair of successful matching;Step S3: the ROI region of reference image is mapped to current picture based on the conversion matrix to complete the dynamic calibration of ROI region.The application calculates the transformation relationship of current picture and reference picture in real time by image matching technology, realizes the automatic correction of ROI region, improves the accuracy and robustness of monitoring system, reduces the demand of artificial maintenance, solves the problem of monitoring area inaccuracy caused by the position change of underground garage entrance camera.

The utility model discloses encapsulation test machine platform motor mounting structure relates to the field of semiconductor technology, including the main part, the linear motor is installed on the main part, and the bottom of linear motor is provided with motor shaft, the upper portion of main part is installed with support connecting piece, and the junction of support connecting piece and main part is provided with screw joint hole and pin hole, the screw joint hole and pin hole all are provided with the waist hole. The utility model discloses the screw joint hole and pin hole of waist hole design make in the installation process of support connecting piece can carry out the fine adjustment, ensure the mouth bar head and motor shaft center line collinear, thereby improve detection accuracy and yield, compared with the traditional round hole design, the waist hole provides greater adjustment range, reduces the device performance decline due to installation error, and the waist hole design of screw joint hole and pin hole not only enhances the maintainability and adaptability of equipment, thereby prolongs the service life of equipment.

This invention relates to the field of shield tunnel equipment technology, specifically to a shield tunnel muck removal device. It includes a muck conveying component assembly on one side of the shaft body, used to transport muck from the bottom of the shaft body to the outside. The muck conveying component assembly includes a drive base assembly, a height control assembly, a conveying chain assembly, an in-shaft stabilization assembly, and a chain bucket assembly. Through the overall structure, this chain bucket muck conveying device can adaptively adjust to different shaft body depths. It eliminates the need for customizing and modifying the conveying height of the chain bucket conveyor for each shaft of varying depth. By controlling the position of the moving frame, the height of the chain bucket conveyor can be adapted to the shaft body depth, reducing working time and costs.

The invention discloses a gallium nitride power device and a packaging method thereof. The packaging method comprises the steps of wafer pretreatment and chip packaging, wherein a copper-titanium-nickel-molybdenum metal layer is grown through electroplating / sputtering in pretreatment, a welding column is formed through etching, an air channel is reserved, and a single chip is obtained through scribing; the heat stress is relieved through the copper-titanium-nickel-molybdenum buffer layer, cavities are eliminated through the welding columns and the bottom partition design, the bonding cost is reduced through the copper connecting structure, meanwhile, the parasitic inductance can be reduced, and the heat dissipation efficiency is improved by combining the diamond cooling fins; finally, current uniformity improvement, reliability enhancement and cost optimization of gallium nitride device packaging are realized, and technical support is provided for large-scale industrial application.

The active switchover process in a distributed database system evaluates available resources of multiple database instances based on database performance metrics of the database instances and resource metrics of the physical hosts of the database instances. The metrics datasets are periodically collected and stored for use in estimating the length of switchover time required to switch a primary database instance candidate with a current primary database instance. The estimation is further based on historical values to inform the active switchover determination.

The utility model discloses an electric heating block structure, including stainless steel shell, aluminium core and heating pipe, the inside of aluminium core is equipped with the expansion cavity of extending to aluminium core bottom, the stainless steel shell is equipped in aluminium core outside, the outside of aluminium core is provided with at least one recessed cooperation slot, the inside of stainless steel shell is equipped with the convex structure, the convex structure is inserted cooperation slot in. Form the clamping cooperation through setting cooperation slot in aluminium core outer periphery, the convex structure is set in the inner wall of stainless steel shell, and the design of the bottom inside edge compression can effectively prevent the problem that aluminium core appears loose, displacement or drop -out in long -time cold -hot cycle process, improves overall structure stability and service life.