6results about How to "Fully enclosed" patented technology

This invention discloses a method for preparing nano-boehmite and its application in lithium-ion battery separators, belonging to the field of inorganic nanomaterial preparation technology. The method includes five steps: raw material calcination and activation, preparation of precursor slurry, hydrothermal synthesis reaction, washing and filtration, and drying and depolymerization. Calcination is carried out in a dynamic calcination furnace, whose exhaust mechanism can promptly remove water vapor. During discharge, the switching mechanism automatically opens the discharge cover, achieving continuous production with no material sticking to the wall and no residue. The obtained nano-boehmite is characterized by low sodium content, uniform particle size, and good dispersibility. This material can be formulated with binders and other agents to form a ceramic coating slurry. After coating and drying, a robust nano-ceramic coating is formed on the surface of a polyolefin-based membrane. This coating significantly improves the thermal stability, electrolyte wettability, and puncture resistance of the separator, thereby improving the battery's safety performance and cycle life.

This invention relates to a server liquid cooling plate and a liquid cooling plate assembly. The server liquid cooling plate includes: a substrate having a chip heating area; a foamed metal filler layer located on the chip heating area; a metal jet equalizing frame located on the foamed metal filler layer, configured to isolate the jet fluid from the return fluid after passing through the foamed metal filler layer; and a metal enclosure cavity fixedly connected to the substrate and surrounding the foamed metal filler layer and the metal jet equalizing frame, with a gap between the metal enclosure cavity and the foamed metal filler layer and the metal jet equalizing frame forming a return cavity. The liquid cooling plate of this invention significantly improves heat exchange efficiency and solves the problem of localized hot spots in traditional cooling plates.

This utility model relates to the field of compressor technology and discloses a fully enclosed single-stage centrifugal compressor, including a lower casing, an upper casing, an impeller, a rotating main shaft, and a motor stator. An impeller and a thrust disc are provided on one side of the rotating main shaft. The main body of the rotating main shaft is rotatably connected to the upper and lower casings via radial bearings on both sides, and the main body of the rotating main shaft is rotatably mounted in the motor stator, which is mounted on the lower casing's internal fixed seat. The upper and lower casings are connected by welding. A refrigerant inlet is provided on the side of the lower casing, and a refrigerant outlet is provided on the volute. This utility model uses refrigerant as the compressor's compression medium. The refrigerant enters through the lower casing inlet, passes through the lower and upper casings, is compressed by the impeller, and flows out through the outlet. Simultaneously, the refrigerant cools the motor stator, reducing the number of compressor parts and improving heat dissipation efficiency. Furthermore, the bearings used in this utility model are air-suspended or magnetic-suspended bearings, eliminating the need for lubrication and increasing energy efficiency.

The utility model discloses a kind of bag orifice sealing structure, artificial anus bag and enema device, belong to medical appliance technical field, aim at solving the problem of existing artificial anus bag without special operation channel, anus temperature measurement or enema operation needs to tear bag and lead to perianal skin damage, the problem of cumbersome operation.Pocket orifice sealing structure includes pedestal, sealing plug and sealing plug, sealing plug is provided with recess and self-closing gap, can be inserted for instrument;Artificial anus bag includes artificial anus bag body, and the bag orifice sealing structure of the artificial anus bag body is set;Enema device includes enema bag, enema tube and the aforementioned artificial anus bag, and enema tube is equipped with moffett dropper and flow regulator.The utility model can complete nursing operation without disassembling artificial anus bag, avoid perianal skin breakage, reduce patient's pain, simplify medical care operation simultaneously, improve nursing convenience.

This utility model relates to the field of power gateway technology, specifically disclosing a gateway device for the power Internet of Things (IoT). The device includes a rectangular cavity within a base box, with mesh holes on the bottom surface of the cavity. The outer edge of the top surface of the base box is fixedly connected to the outer edge of the bottom surface of the gateway body. A fan is fixed to the bottom of the rectangular cavity. The heat-conducting component includes a heat transfer shell and multiple externally threaded tubes fixed to the bottom surface of the heat transfer shell. The outer peripheral wall of the heat transfer shell has several annular fins arranged vertically. A locking nut is threaded onto the bottom end of each externally threaded tube, and a flared end is fixed to the bottom end of the locking nut. Rectangular slots matching the heat transfer shell are provided on both sides of the center of the top plate of the gateway body, and insertion holes matching the externally threaded tubes are provided on the bottom plate of the gateway body. This design effectively solves the problem of poor heat dissipation in power IoT gateways, and the gateway body is fully enclosed, preventing dust and other debris from entering its internal cavity.

This invention discloses a lithium-carbon dioxide battery cathode, a lithium-carbon dioxide battery, and its preparation method, belonging to the field of battery technology. The invention utilizes the reaction of amino acids with inorganic acids to prepare amino acid salt ionic liquids. These amino acid salt ionic liquids are then used to pretreat sawdust, followed by carbonization to prepare activated carbon fibers. Finally, the prepared activated carbon fibers are used as the cathode catalyst to prepare the lithium-carbon dioxide battery cathode. The activated carbon fibers prepared by this method exhibit high peak current, large discharge capacity, and good cycle stability. The ionic liquid C8mimBF4 is used as both the CO2 capture and storage medium and the electrolyte, improving battery life and effectively ensuring battery safety and environmental friendliness. This invention employs multi-cell packs and semi-dry electrode processes to construct a manufacturing process for lithium-carbon dioxide batteries. The resulting batteries exhibit high energy density and good operational stability, demonstrating excellent economic prospects and practical value.