19results about How to "Ensure long-term reliability" patented technology

The application discloses a TBC battery and a preparation method thereof. The TBC battery comprises a substrate and a P-zone assembly arranged on the back of the substrate. The P-zone assembly comprises a first electrode, a first tunneling silicon oxide layer, a boron-doped polysilicon layer and a first passivation layer which are sequentially stacked on the back of the substrate. The first electrode penetrates through the first passivation layer and the boron-doped polysilicon layer. The P-zone assembly further comprises a tunneling silicon nitride layer arranged between the first tunneling silicon oxide layer and the boron-doped polysilicon layer. The tunneling silicon nitride layer is used to block the boron element in the boron-doped polysilicon layer from being precipitated to the first tunneling silicon oxide layer. The application inhibits the precipitation of the boron element in the boron-doped polysilicon layer through the silicon nitride layer, enhances the passivation effect, and further improves the final conversion efficiency and reliability of the battery.

This utility model discloses a heat treatment and shaping device for polyester fiber yarn, including a drying box. A fixed frame is fixedly installed inside the drying box, and a placement plate is provided above the fixed frame. The placement plate is slidably connected to the fixed frame via a slider. A first sliding rod is fixedly installed inside the fixed frame, and the slider is slidably sleeved with the first sliding rod. A first cam is rotatably installed on the fixed frame. An installation frame is fixedly installed inside the drying box, and a movable frame is slidably installed on the installation frame. A carding frame is rotatably installed on the movable frame. Through the synergistic action of the placement plate, slider, first sliding rod, first cam, and first spring, the placement plate and the fiber yarn it carries are driven to generate controllable reciprocating vibration or oscillation inside the drying box. This dynamic treatment method effectively breaks the static structure of multi-layer stacked fiber yarn and significantly promotes the penetration and circulation of the heat medium inside the fiber layer and between different layers.

The invention belongs to the technical field of power plant indirect cooling circulating water treatment, and relates to an automatic control device and method for the quality of indirect cooling circulating water. Comprising an intelligent control cabinet, an alkali solution tank, an acid solution tank, a mixed ion exchanger, a condenser and an indirect cooling tower aluminum heat exchanger, a conductivity meter, a pH meter and a PLC (Programmable Logic Controller) are arranged in the intelligent control cabinet; the alkali solution tank is connected with a circulating water inlet pipeline; the acid solution tank is connected with a circulating water inlet pipeline; a pH electrode is arranged on the circulating water inlet pipeline; a conductivity electrode is arranged on the circulating water outlet pipeline; the condenser inlet is connected with the circulating water outlet pipeline; the condenser outlet is connected with the circulating water inlet pipeline; the circulating water outlet pipeline is connected with an inlet of the mixed ion exchanger; an outlet of the mixed ion exchanger is connected with an inlet of the condenser. According to the invention, accurate control of the water quality pH value and conductivity of the intercooling circulating water can be realized, so that system corrosion is effectively inhibited, the service life of equipment is prolonged, and safe and economical operation of a unit is guaranteed.

The application discloses a total nitrogen and total phosphorus concentration online monitoring method and system combining spectrum enhancement and closed-loop correction. The method comprises the following steps: synchronously collecting water quality online monitoring data and fluorescence / ultraviolet spectrum data and performing pretreatment; extracting characteristic indexes related to total nitrogen and total phosphorus from the spectrum data; introducing random noise to the enhancement characteristic set of the predefined key area to perform data enhancement, and performing cluster compression on the data of the non-predefined area; training a machine learning prediction model by using the optimized data; regularly obtaining manual monitoring data of a national control section; and finally performing real-time concentration prediction by using the corrected model. The application relates to the technical field of water environment monitoring; the training efficiency and the performance of the key area are balanced through regional optimization processing, the long-term reliability and authority of the model are ensured through the closed-loop correction mechanism of the national control section data, and high-precision, high-robustness and self-evolution total nitrogen and total phosphorus concentration online monitoring is realized.

This invention belongs to the technical field of silicon-based piezoresistive high-pressure sensors, and specifically relates to a dual-island beam membrane high-pressure sensor chip and its fabrication method. The chip features a dual-island beam on a sensitive membrane; a set of piezoresistive strips are arranged on the upper surface of the dual-island beams, positioned along two center lines of the chip body; the dual-island beams include an island and an island, with their ends connected to the device layer, insulating layer, and support layer via a beam body; the upper surfaces of the islands are flush with the upper surface of the beam body; this significantly enhances the lateral and longitudinal stress difference in the stress concentration area, making the stress concentration effect more pronounced, improving the sensor's sensitivity, and ensuring reliable measurement results under various operating conditions.

The utility model relates to wireless integrated controller technical field discloses a kind of wireless integrated controller of lighting system, including wireless integrated controller main body, the side of the wireless integrated controller main body is hinged with shielding cover by hinge, the outside of the wireless integrated controller main body is fixed with installation shell, the device is provided with reinforcing mechanism, wireless integrated controller main body can be realized to the intelligent management of lighting equipment by wireless communication technology, when wireless integrated controller main body is installed, reinforcing when wireless integrated controller main body installation is conveniently completed, prevent the loosening or drop of equipment due to vibration or external force impact, save space and realize physical locking, can guarantee long-term reliability after installation;The device is provided with closure mechanism, the outside of fixed block is shielded and limited by movable sleeve, improve the closure stability of shielding cover, ensure that shielding cover protects the stable structure of operating knob outside wireless integrated controller main body.

The application discloses a tunnel collapse collaborative treatment system and method based on a twin model prediction, and belongs to the technical field of underground engineering disaster prevention and treatment. The system comprises a multi-source fusion intelligent perception layer, a digital twin analysis and decision-making layer and a distributed collaborative execution layer. The perception layer collects data in real time; the decision-making layer constructs a dynamic digital twin and runs a model prediction control algorithm, performs simulation prediction and rolling optimization, and generates collaborative control instructions; and each terminal of the execution layer receives the instructions and collaborates. Through the "perception-simulation-prediction-execution" closed loop, the digital twin and advanced process control theory are deeply integrated, the problems of traditional treatment measures, such as dispersion, poor collaboration and decision lag, are solved, advanced simulation, dynamic optimization and adaptive collaborative control of the collapse treatment process are realized, and the safety, efficiency and structural reliability are significantly improved.

This application provides a conductive paste that, by introducing inexpensive metals such as nickel and aluminum into the paste, increases the proportion of conductive metals other than silver to a maximum of 50%, significantly reducing the amount of precious silver used, effectively controlling material costs, and alleviating cost pressures caused by soaring silver prices. By controlling the particle size distribution of conductive metals other than silver (D50 is 2-9μm, D100 < 30μm), the paste is ensured to have good permeability and formability during screen printing, without screen clogging or broken grid lines, forming complete and uniform fine grid lines, laying the foundation for high efficiency.

The application discloses a chip terminal connector detection method, device, electronic equipment and system, and belongs to the field of electronic testing. The application scheme covers two dimensions of physical connection and electrical performance through the method of visual detection, vibration simulation test, and impedance detection and DCT detection linkage, can effectively identify hidden defects such as poor connection, poor contact, and slight deviation, and achieves the technical effects of improving detection accuracy and reducing the after-sales failure rate. And through the vibration simulation test, the mechanical environment in the transportation and installation process before leaving the factory can be simulated, potential terminal loosening problems can be exposed in advance, and product reliability is improved.

This invention discloses a large-arc bend injection mold and molding method, belonging to the field of injection molding technology. The mold includes a moving mold, a fixed mold, and a core mold with a circular arc core; it also includes a demolding drive mechanism for driving the core mold and product to generate a first displacement away from the fixed mold; and a pointer-type rotary demolding mechanism, which includes a pointer push rod and a push ring rotating around the axis of the circular arc core. During demolding, after the product is lifted with the core mold, the pointer push rod drives the push ring to swing along the circular arc path to push the product out. This invention also reduces the covering force by performing pre-demolding through an assisted demolding mechanism and ensures the stability of the core mold during injection molding using a core positioning mechanism. This invention replaces the traditional hot bending process with one-time injection molding, solving the problems of low production efficiency, poor roundness, and easy cracking caused by thermal stress in existing technologies for large-arc bend pipes, significantly improving the geometric accuracy and operational reliability of the product, and is particularly suitable for ultra-high voltage converter valve cooling system pipelines.

The invention discloses a thermogravimetric analysis device and method for high-humidity multi-component atmosphere reaction kinetics research, and belongs to the technical field of thermogravimetric analysis instruments.The device comprises a reaction module, a heating furnace, a weighing module, a gas distribution module and an analysis module; the reaction module is vertically arranged in the heating furnace, the core is a reaction pipe main body with an open lower part, and the side surface is connected with a gas inlet pipe and a sampling pipe from top to bottom; the weighing module is located below the reaction module and comprises a weighing balance, a water cooling unit and a weighing supporting rod, and the water cooling unit can control a water vapor condensation area and stabilize the temperature of the balance; the gas distribution module can provide a multi-component reaction atmosphere containing water vapor with controllable concentration; the analysis module can detect tail gas components in real time. The device can realize low gas-solid mass transfer resistance, high-humidity environment stable control, wide-particle-size sample measurement and rapid heating and cooling, and is suitable for high-humidity multi-component atmosphere gas-solid reaction kinetic research in the fields of combustion, catalysis, adsorption and the like.

The utility model provides a household electrical appliance wire harness with a heat dissipation sleeve, and relates to the technical field of household electrical appliance wire harnesses, the household electrical appliance wire harness comprises a wire harness head, one side of the wire harness head is provided with three connecting ports, one side of each connecting port is fixedly connected with a connecting sleeve, and one side of each connecting sleeve is provided with a heat dissipation mechanism; according to the cable heat dissipation sleeve, the heat dissipation sleeve body and the first threaded sleeve freely adjust the position of a cable, butt joint connection is facilitated, then the second threaded sleeve is screwed down, the surface of the cable is clamped and fixed by the locking sleeve, stable connection is ensured, then the first threaded sleeve further pulls the sleeve rope and the fixing frame, and the elastic piece is pushed to be tightly attached to the cable, so that the cable is fixed. The stable connection between the cable and the heat dissipation sleeve body is enhanced, the heat dissipation effect is improved, the overall structural design is compact, installation is convenient, the risk of loosening or insufficient heat dissipation is effectively avoided, and the long-term stability and reliability of a system are ensured.

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.

This invention relates to the field of all-solid-state secondary battery technology and discloses a high-performance all-solid-state secondary battery equipped with a stabilized positive electrode, comprising a positive electrode, a negative electrode layer, and a solid electrolyte layer. The positive electrode is manufactured by coating and drying a slurry containing 80%-88% positive electrode active material, 10%-16% sulfide solid electrolyte, 1%-2% conductive agent, and 1%-2% binder, followed by a heat-pressurization treatment at 100℃-250℃ and 10MPa-100MPa. This invention constructs a dense interface stabilization layer in situ between the positive electrode active material and the sulfide electrolyte by applying a thermo-pressure coupling treatment to the positive electrode precursor. This stabilization layer improves the physical contact between the solid and solid interfaces and reduces interfacial impedance. Simultaneously, this stabilization layer acts as a physical barrier, inhibiting the oxidative decomposition of the electrolyte under high voltage, slowing capacity decay, and improving the battery's cycle life and structural stability.

The utility model provides a forced deviation rectifying device of a belt conveyor, which relates to the technical field of conveying mechanical equipment and comprises a forced deviation rectifying carrier roller assembly and an adjustable support. The forced deviation rectifying carrier roller assembly comprises a lower carrier roller, the two ends of the lower carrier roller are connected with a carrier roller support through bearing seats, and the lower carrier roller can rotate in the axial direction. The adjustable support is composed of a fixed sliding way, an adjusting lead screw and an adjusting nut. Wherein the surface of the fixed slide way is galvanized, the screw pitch of the adjusting lead screw is 5 mm, and the precision of the adjusting lead screw is + / -0.1 mm. Two sets of assemblies are symmetrically arranged on the return stroke section every 8-10 m of the 40m belt conveyor, and a sectional type deviation rectifying unit is formed. According to the utility model, the belt tension is balanced through modularized symmetrical arrangement, and a pure mechanical structure is adopted, so that the device adapts to a high-dust and humid environment, the deviation rectifying efficiency is improved, the adjusting stroke is increased, and the maintenance period is prolonged.

The invention relates to the technical field of air conditioning, in particular to an air conditioner controller anti-condensation system and a control method thereof, which are applied to an air conditioner system comprising a compressor, a reversing device, a controller, an outdoor heat exchanger, an electronic expansion valve and an indoor heat exchanger. The system comprises a capillary tube, a controller radiating tube, a controller radiating tube temperature sensor, an outdoor environment temperature sensor and an indoor environment temperature sensor, the capillary tube and the controller radiating tube are connected in series between the outdoor heat exchanger and the electronic expansion valve; a heat dissipation plate is arranged between the controller heat dissipation pipe and the controller, and the controller heat dissipation pipe and the controller are fixedly arranged on the two sides of the heat dissipation plate respectively. And the controller radiating tube temperature sensor is arranged on a pipeline between the capillary tube and the electronic expansion valve. According to the scheme, an anti-condensation system structure with low cost and high reliability is realized, and an intelligent control method which is accurate and has small influence on energy efficiency is provided.

The utility model discloses a kind of mobile phone screen module, it is related to screen module technical field, including outer screen, inner screen and the OCA glue layer being set between outer screen and inner screen, the inner screen is attached on the back of outer screen by OCA glue layer;Along the outer screen back periphery is equipped with stepped groove, the stepped groove includes the first step groove and the second step groove being connected, the first step groove is close to outer screen edge position, the second step groove is set in the first step groove inside, silk printing layer is equipped in the second step groove, to form the silk printing frame acting on outer screen by silk printing layer, wherein, the OCA glue layer is attached on the back of silk printing layer, the surface of first step groove and the back of outer screen located outside stepped groove;Effectively protect the silk printing layer, reduce its abrasion, cracking risk due to external force impact to some extent, to guarantee the integrity of silk printing frame and the long-term reliability of screen.