9results about How to "Small surface area" patented technology

The utility model discloses a kind of anti-falling board auxiliary jig structures for small size PCB production, it is related to auxiliary jig technical field, and it includes: substrate bearing plate, multiple support platforms and multiple drainage open area are equipped on the substrate bearing plate, the end of the support platform is provided with clamping point, the lower side notch of the drainage open area extends to the bottom surface of substrate bearing plate, the upper side four corners of the substrate bearing plate are all installed with support seat, adjusting screw is screwed through in the support seat, the inner end of the adjusting screw is rotatably connected with clamping piece, gauze is laid on the substrate bearing plate, and the four corners of the gauze are connected with four clamping pieces respectively. The utility model is cooperatively designed by gauze and drainage open area, and gauze tension offsets water flow impact force, prevents PCB board displacement, and drainage open area accelerates liquid discharge, compared with traditional single anti-falling board structure, reduces the downtime of cleaning process.

This invention discloses a multi-axis planar motion platform suitable for vacuum environments, comprising: a vacuum chamber, a mounting top plate, an adjusting column, a motion stage, a support platform, a drive assembly, a secondary guide rail, a primary guide rail, and a primary slider. The vacuum chamber is a sealed cavity, with the mounting top plate positioned at the top inner side of the vacuum chamber. The support platform is a hollow square structure connected to the mounting top plate via the adjusting column. The motion stage and secondary guide rail are both located inside the support platform, while the drive assembly is located outside the support platform. The output end of the drive assembly is connected to the secondary guide rail, which extends horizontally through the inner side of the motion stage. Both ends of the secondary guide rail are connected to the primary slider, which slides on the primary guide rail. The primary guide rail is located at the edge of the support platform. Driven by the drive assembly, the secondary guide rail, primary slider, and primary guide rail cooperate to achieve relative sliding of the motion stage within the support platform along the X-axis or Y-axis. This invention has the advantages of compact structure, simple operation, and high motion accuracy.

This utility model discloses an electrode boiler coupled with a solid thermal storage boiler energy storage system. The water supply pipe is connected to the electrode boiler via valve 5, and the output of the electrode boiler is connected to a first spherical tank via a pipe via valve 6, and then to a second spherical tank via valve 1. The output of the first spherical tank is connected to the user end via a pipe and valve 7, and the output of the second spherical tank is connected to the user end via a pipe and valve 3. The pipes connecting the second spherical tank to the user end pass through the solid thermal storage boiler. The system has high energy storage efficiency, long lifespan, and high safety. The solid thermal storage boiler directly heats the saturated steam stored in the spherical tanks, enabling rapid adaptation to changes in different heating scenarios and demands. It solves the problem that the superheated steam generated by the electrode boiler's superheater cannot be continuously and stably utilized during off-peak hours. The energy storage system can produce both saturated steam and superheated steam.

The present disclosure aims at improving gate withstand voltage in a semiconductor device having a two-stage configuration of trench electrodes. The upper electrode (15U) includes an upper base (15U1) and an upper protruding portion (15U2) protruding from the face of the second main face (S2) side, that is, the lower face, toward the second main face side. The upper electrode (15U) is convex toward the second main face (S2) by the upper base and the upper protruding portion. The oxide film (14) has a lower oxide film (141) formed on the side face of the trench (13) in contact with the lower electrode (15D), an upper oxide film (143) formed on the side face of the trench (13) in contact with the upper base, a protruding portion oxide film (142) formed on the side face of the trench in contact with the upper protruding portion, and a boundary oxide film (144) formed between the upper electrode and the lower electrode. The thickness t2 of the protruding portion oxide film is greater than the thickness t1 of the lower oxide film.

The present invention relates to a nickel-plated heat-treated steel sheet for a battery case having excellent corrosion resistance and a method of manufacturing the same. In one embodiment, the nickel-plated heat-treated steel sheet includes a base steel sheet and a nickel layer formed on one or more surfaces of the base steel sheet, wherein the nickel layer is laminated in two or more layers, and the weight per unit decreases in order from the base steel sheet toward the surface of the nickel layer.

The utility model discloses a combination combustion equipment based on annular ladder and vortex flow field, it includes: ladder cyclone cylinder, it is provided with fuel inlet and high temperature flue gas inlet, combustion flue gas outlet cylinder, it is sealedly installed at the top mouth place of ladder cyclone cylinder, and ash outlet cylinder is sealedly installed at the bottom mouth place of ladder cyclone cylinder, wherein, the cavity wall elevation of ladder cyclone cylinder upper cavity is enclosed into streamline closed cylinder, and the cavity wall of ladder cyclone cylinder lower cavity is that its section is along the circumferential track and extends into ring, and is enclosed into the conical cylinder annular ladder of gradually descending from big to small downwards. The utility model discloses device compares the conventional ladder furnace type of same ladder surface area, and the structure is more compact, and the material is more saving, and the surface area is smaller, and the heat loss is less, and high temperature flow field concentrates in the central area close to the top outlet simultaneously, and the thermal efficiency is higher.

This utility model discloses a basket structure for maritime rescue, relating to the field of maritime rescue technology. The utility model includes a first connecting block and a second connecting block disposed above the first connecting block. A first connecting rope is fixedly connected to the top of the second connecting block. It also includes: an extension portion disposed above the first connecting rope; a retractable portion disposed on the first connecting block; and several retractable portions, all located outside the first connecting block. Each retractable portion includes several support assemblies. This utility model, by incorporating the retractable portion, solves the problem of existing basket structures being inconvenient to retract during use. This results in a large surface area of ​​the basket's bottom in contact with the water when lowered into the water, causing the buoyancy of the water to act instantly over a large area, leading to violent shaking of the basket and hindering rescue efforts.

This utility model relates to the field of tea container technology, specifically to a tea moisture-proof container; it includes: a main tank body, cylindrical in shape, with a partition on the upper part of the bottom plate of the main tank body, forming a first cavity for placing desiccant between the partition and the bottom plate, and a second cavity for placing tea leaves on the upper part of the partition; ventilation holes are provided on the partition; an inclined tea-dropping pipe is provided between the partition and the bottom plate; a rotating sleeve, a rotating body composed of a side plate and a bottom cover, the inner side of the rotating sleeve being rotatably connected to the outer wall of the main tank body, the bottom cover of the rotating sleeve being located at the lower part of the bottom plate of the main tank body, and the bottom cover of the sleeve having a tea-dropping hole matching the lower end of the tea-dropping pipe; and a weighing base, a rotating body with an open top, the upper edge of the weighing base being threadedly connected to the rotating sleeve, and a weighing device being provided at the lower part of the weighing base. The above structural improvements can reduce the influence of air and moisture during the tea-taking process and can also quantitatively measure the amount of tea taken.