8results about How to "Extend effective life" patented technology

This utility model discloses an external heat dissipation device for a photovoltaic inverter, including an air duct cover over a back panel and a fan bracket disposed on the back panel within a first spacer. The fan bracket has several fans with air inlets facing a first inductor box heat sink. The air duct cover has a first air inlet corresponding to the first inductor box heat sink, a second air inlet corresponding to the second inductor box heat sink, a first air outlet corresponding to the end of the heat sink facing away from the first inductor box heat sink, and a second air outlet corresponding to the end of the third inductor box heat sink facing away from the second inductor box heat sink. This utility model meets the requirement of uniform heat dissipation, balances the inverter temperature, avoids excessively high local temperatures affecting the inverter's operational stability, and extends the inverter's effective lifespan. The internal fan cover design provides protection and creates a stable airflow channel, significantly improving heat dissipation performance.

This invention discloses an emodin-modified amine curing agent and its preparation method, as well as a long-lasting anti-corrosion coating based on bulk rust conversion, its preparation method, and its application. It relates to the field of anti-corrosion coating technology. The preparation method of the emodin-modified amine curing agent of this invention includes: subjecting raw materials including 2-hydroxyemodin, formaldehyde, and 1,5-pentanediamine to a Mannich reaction to obtain the emodin-modified amine curing agent. The emodin-modified amine curing agent used in this invention has a certain rust conversion ability and forms a stable chelate with iron ions, eliminating the need for rust conversion agents and allowing direct application to corroded surfaces. By using a suitable resin and curing agent system ratio, this invention can prepare a high-performance, low-surface-treatment, long-lasting anti-corrosion coating based on bulk rust conversion, applicable to manually cleaned surfaces (St2 / St3, ISO 8501-1), old coatings, high-pressure water jetting, and wet sandblasting substrate surfaces.

The application discloses a kind of distributed power energy storage devices, it is related to secondary battery technical field, including box, several hollow supports are evenly installed equidistantly in the box, several partition seats are evenly installed equidistantly in the side end surface of hollow support, cabinet is slidably installed in the top of partition seat, limit valve is embedded and installed in the bottom of cabinet side end surface, the end of limit valve is installed with spout, sliding plate is slidably installed in the inside of partition seat, the heat emitted in the process of the present application is driving force, forcibly realizes internal and external interactive heat exchange and internal circulation heat exchange, can effectively remove the heat generated in the process of device operation in time, realize the recycling of energy conversion and utilization, while realizing the efficiency of the base, improve the synchronism and high efficiency of heat exchange work, while prolonging the effective service life of battery, improve the popularization of device, flexible meet the multiple needs of user side cost reduction, power grid side stability and energy side low carbon.

This invention discloses a PTC regeneration bypass control method for window-type oxygen-enriched membrane fresh air systems, belonging to the field of air handling equipment control technology. The method includes: real-time monitoring of the oxygen-enriched membrane component performance degradation rate, dew point of the drying unit, indoor carbon dioxide concentration, and indoor-outdoor temperature difference; comprehensively determining the oxygen-enriched membrane performance degradation and the drying unit regeneration needs, and calculating and selecting the optimal time point with the least impact on the indoor environment to initiate regeneration, taking into account indoor air quality and heat load conditions; first switching to bypass ventilation mode to maintain basic air exchange, while simultaneously regenerating the drying unit and independently expelling moisture outdoors; and smoothly switching back to the original operating mode after regeneration is complete. This method solves the problems of improper regeneration timing, impact on indoor ventilation and comfort during regeneration, and high regeneration energy consumption in existing technologies, achieving efficient, energy-saving, and intelligent regeneration and maintenance of core consumables while ensuring continuous indoor air quality.

The utility model discloses a kind of pultrusion mould, it is related to mould manufacturing technical field, the pultrusion mould includes mould body and coating layer, mould body is equipped with cavity;Coating layer includes laminatedly arranged adhesive layer, intermediate lubricating layer and wear-resistant lubricating layer, adhesive layer covers the surface of cavity.The utility model aims at improving the demoulding performance of pultrusion mould, reduce surface wear, reduce maintenance cost.

This invention belongs to the field of semiconductor manufacturing and abrasive grinding wheel technology, specifically relating to a CMP polishing pad dresser with gradient wear compensation characteristics and its fabrication process. The dresser of this invention includes a substrate and a composite cutting layer distributed on its surface. The composite cutting layer consists of large-particle-size diamond abrasive distributed in a first region of a sector shape and small-particle-size diamond abrasive distributed in a second region. The exposed height of the large-particle-size diamond abrasive is greater than that of the small-particle-size diamond abrasive, and both are embedded and fixed by a multi-layer metal structure including multiple nickel plating layers and an outermost chromium-plated anti-corrosion layer. This invention utilizes the mechanism of diamond abrasive of different particle sizes being exposed in stages according to the wear progress during the dressing process to offset the performance degradation caused by cutting edge dulling, solving the problems of short lifespan and linear decline in dressing rate of traditional dressers. Experiments have shown that this structure can significantly extend the lifespan of the dresser and maintain the stability of the dressing rate over a long period, which is of great significance for improving the consistency of wafer planarization processes.

This invention provides a second air inlet on the filter box, offering airflow paths for both dust collection and dust removal modes. During dust removal, the suction generated by the workstation guides external air in through the second inlet, then reverses direction through the filter element before entering the dust collection chamber. This reverse airflow effectively washes away and removes fine dust adhering to the filter element's side facing the dust collection chamber, allowing this dust to be discharged with the airflow from the first air outlet back to the workstation. This invention not only removes accumulated dust inside the dust collection chamber but also cleans dust adsorbed on the filter element, significantly extending the effective service life of the filter element and maintaining its cleanliness.

The application discloses a conduction assembly for an electric water heater, which comprises a control casing and a conduction piece. A water passage is formed in the control casing, and a conduction hole is formed in the water passage in a radial direction. The conduction piece is sealingly inserted into the conduction hole. The conduction piece is at least partially located in the water passage. Limiting grooves are formed in the conduction piece and the control casing in a radial direction of the conduction piece. Limiting pieces are arranged in the limiting grooves. The application has the effects of optimizing the accuracy of the assembly position of the conduction piece and improving the assembly efficiency of the conduction piece.