47results about How to "Increased Design Freedom" patented technology

The invention discloses a reflection type polarization conversion antenna with an adjustable stop band, which works in an X wave band and is composed of a dielectric substrate, a metal resonance structure layer arranged on one side of the dielectric substrate and a metal reflection layer arranged on the other side of the dielectric substrate, and the metal resonance structure layer comprises two groups of mutually nested symmetrical split circular ring resonance units. Through the technical means of translation, parameter adjustment and the like, the two groups of resonance units generate symmetry difference, so that different resonance units generate mutually counteracted surface current responses at a specific frequency, and a stop band for polarization conversion suppression is formed in a continuous working frequency band; the position and suppression intensity of the stop band can be controlled by adjusting the structural parameters of each resonance unit. While broadband high-efficiency polarization conversion is realized, a tunable narrowband polarization conversion zero point is introduced, and the tunable narrowband polarization conversion zero point has the advantages of simple structure, high regulation degree of freedom and good incident angle stability, and is suitable for communication, radar and signal monitoring systems of millimeter wave and microwave frequency bands.

The utility model relates to the technical field of elevator call-out, and discloses an elevator call-out device which comprises a panel and an assembly hole, a circuit board is fixedly installed inside the panel, a first LED lamp bead is fixedly installed at the top end of the front end of the panel, and a second LED lamp bead is arranged at the bottom end of the first LED lamp bead. The elevator call-out device is provided with the panel and other parts; a traditional LED segment code display module is replaced with an LED and lampshade surface paste, and the LED segment code display module has the advantages of being low in material cost, free in shape and size, diversified in display content, light and thin in design, simplified in assembly, low in maintenance cost, optimized in uniformity, high in contrast ratio, diversified in color, reliable and expansible. The LED segment code display module can exceed a traditional segment code module in the aspects of cost, design freedom degree and function expansibility, is particularly suitable for product schemes pursuing differentiation and high cost performance, and solves the problem of improvement of the traditional LED segment code display module in the aspects of cost, design freedom degree and function expansibility.

The invention provides a multi-dimensional vibration platform with oppositely-arranged double-sandwich piezoelectric actuators and an excitation method of the multi-dimensional vibration platform, and belongs to the technical field of high-frequency vibration engineering and micro-nano machining.The vibration platform comprises a center platform, the two oppositely-arranged piezoelectric actuators, two end covers and two bolts, wherein the center platform is integrated with the tail end platform, the two flexible hinges and the two amplitude-change poles, and the center platform is slender and is in mirror symmetry about the longitudinal symmetry plane of the tail end platform. The piezoelectric actuator comprises a longitudinal vibration ceramic group, a bending vibration ceramic group around the Y axis and a bending vibration ceramic group around the Z axis, translation along the X / Y / Z axis and rotation around the Y / Z axis can be realized through in-phase or anti-phase excitation different combinations under the condition of not increasing extra driving channels, and five-degree-of-freedom high-frequency micro-vibration output can be achieved at most. The structure has high symmetry, low parasitic vibration, compact size and high integration, and is suitable for precise engineering scenes such as micro-nano processing, laser-assisted manufacturing, cell manipulation and active vibration suppression.

The invention provides a transparent composite material with a sandwich structure and a preparation method thereof, and relates to the technical field of materials. Specifically, the transparent composite material comprises a first panel, a core layer and a second panel which are connected in sequence, the core layer comprises at least one of PC (polycarbonate), PMMA (polymethyl methacrylate), PVC (polyvinyl chloride), PET (polyethylene terephthalate) or PP (polypropylene); the first panel and the second panel comprise a fiber reinforced transparent material, and the fiber reinforced phase comprises at least one of E-alkali-free glass fibers, S-2 glass fibers, R-glass fibers, T-glass fibers, or HS-glass fibers. The transparent composite material has good mechanical strength on the premise of high light transmittance, the core layer provides overall rigidity and shear bearing capacity, the panel material bears bending and pressure loads, the strength of the composite material is improved, and the transparent composite material has good machinability and design freedom degree.

The invention provides a method for automatically generating a pixelated resonant cavity of an oscillator based on knowledge-driven reverse design. The method comprises the following steps: determining a topological region range of VCO resonant cavity design; determining a reverse design target; a priori knowledge driving pixel matrix drawing strategy is established, pixelated inductor topological structure drawing is completed in the topological region based on the drawing strategy, and a primary pixelated inductor topological structure quality factor and a secondary pixelated inductor topological structure quality factor are calculated; according to a reverse design target, searching a Q value of a primary pixelated inductance topological structure from a binary n * n matrix assembly at a given target frequency, and meanwhile, achieving a maximized optimal solution to obtain an optimal pixel topological structure; and constructing the voltage-controlled oscillator in combination with the optimal pixel topological structure. According to the method, batch automatic simulation and optimization of the optimal resonant cavity structure can be realized, and compared with manual design, the time cost is saved, and meanwhile, the performance is further improved.

The invention discloses a polarization multiplexing all-dielectric metasurface structure color device based on gallium phosphide. The device is composed of periodically arranged metasurface units, and each unit sequentially comprises a transparent quartz substrate 1, a TiO2 reflecting layer 2 and an all-dielectric nano resonator located on the TiO2 reflecting layer 2 from bottom to top. The nano resonator is composed of a GaP nano column 3 and a SiO2 impedance matching layer 4 covering the top of the GaP nano column 3. The material cost is low, the manufacturing process is mature, and the designed device shows obvious optical response difference under irradiation of different polarized lights. By utilizing the characteristics of high refractive index and low loss of a gallium phosphide material in a medium-long wave region of visible light, a single reflection peak of which the reflection efficiency is up to 99% and the bandwidth is less than 16nm is realized under X polarization of a visible light wave band; and a stable multi-peak spectrum is formed under Y polarization to serve as a spectrum fingerprint, so that high-quality display and polarization multiplexing functions are realized in the same device. The device is suitable for the fields of high-color-gamut display, optical anti-counterfeiting and the like.

The invention belongs to the related technical field of multifunctional gradient dot matrix sandwich structures, and discloses a gradient dot matrix sandwich structure with sound absorption and bearing functions and a design method. A microstructure in the sandwich structure comprises plate grids which are oppositely arranged up and down and a truss arranged between the plate grids, one or more micro-perforated holes are formed in the plate grids, and the truss is formed by a single rod array. The invention further discloses a design method of the microstructure. The sandwich structure comprises multiple layers, each layer is formed by tightly connecting the microstructures arranged in a gradient mode, the microstructure of each layer comprises multiple areas, the microstructures in the different areas are the same or different, and the thicknesses of the different areas are the same or different; the microstructural plate grids in the same area are the same, but the trusses are not necessarily the same. The invention further discloses a design method of the sandwich structure. According to the invention, the problem of low sound absorption and bearing performance of the sandwich structure is solved.

This invention discloses a calibration system and method for extremely weak light radiance based on a cascaded integrating sphere, belonging to the field of optical radiation metrology and photoelectric detection technology. The system includes a first integrating sphere, an aperture tube, and a second integrating sphere. The aperture tube achieves large dynamic range light intensity adjustment through geometric attenuation. The second integrating sphere connects both a reference detector and a high-sensitivity detector to be calibrated, enabling online calibration and dynamic range bridging under the same radiance field. By adjusting the aperture, the light flux distribution is controlled, allowing the measurement ranges of the two types of detectors to overlap. This is used to perform correction processing related to non-ideal effects of single-photon detectors and high-precision measurement of extremely weak light radiance. This invention features a compact structure, stable and reproducible attenuation, and is suitable for weak light calibration and linearity testing in fields such as quantum optics and nighttime remote sensing.

A forming method of a semiconductor structure comprises the steps that a substrate comprises a first region and a second region; modifying the second core material layer in the second region to form a third core material layer having an etching selection ratio with the second core material layer; forming a first core material layer; patterning the first core material layer to form a first core layer; forming a first side wall; patterning the second core material layer and the third core material layer in the second region to form a second core layer and a third core layer; forming a second side wall; forming a third protection layer; patterning the third core layer by taking the third protective layer as a mask; the second side walls and the third core layer are used as masks to pattern the target material layer, first target structures and second target structures are formed, and the pitch of the adjacent first target structures is smaller than or equal to the pitch of the adjacent second target structures. The SAQP process and the SALELE process are formed at the same time, and the design freedom degree in the patterning process is improved.

The application belongs to the technical field of photonic artificial micro-nano structure design and image processing, and discloses an optical spatial differential device for target extraction, a reverse design method and application. The method comprises the following steps: setting a target transfer function according to the functional requirement of an optical device; establishing an optimization model according to the design parameters of a super surface, the design parameters being dielectric constant distribution, and performing certain constraint and binary processing on the design parameters in each iteration process; judging whether the loss function converges or not, outputting an optimization scheme if the loss function converges, and otherwise, performing gradient calculation and continuing the next iteration optimization process. The optical spatial differential device is based on the diffraction optical angular spectrum theory and the Fourier transform property, directly acts on an incident light field image, realizes spatial frequency regulation of the light field image in the wave vector space, and thus achieves the purpose of processing the image in the optical domain. The obtained patterns of the application can be directly applied to a double photopolymerization 3D printing technology, so as to prepare a sample.

The application discloses a spray-free body panel and a manufacturing method and device thereof, which comprises a substrate made of injection-molded thermoplastic polymer, used for providing structural strength and rigidity; an intermediate structure arranged on the substrate, made of reactive resin by reactive injection molding and containing coloring materials, used for providing color effects; and an outer layer structure arranged on the outside of the intermediate structure, formed by heating and vacuum adsorption of a prefabricated sheet material. The application adopts a two-step process of double-station parallel pretreatment and one-time mold closing, and has simple procedures, short production cycle and high qualified rate.

The utility model discloses a map bag and car door guard plate, including map bag body skeleton and rubber pad, map bag body skeleton is connected with car door guard plate through connecting structure and is formed with containing cavity and opening, the bottom surface of containing cavity is paved with rubber pad, the bottom surface of rubber pad has a plurality of sucking disc, rubber pad adopts the material injection molding of EPDM or TPE, sucking disc is integrally formed on rubber pad body when injection molding of rubber pad. The utility model can be arranged sucking disc structure in every corner of rubber pad according to actual condition, and the size of sucking disc can be arranged at random according to space, and the direction of sucking disc can be arranged according to the direction of curved surface at random, and the design freedom is very high, and can control the stability of rubber pad well.

The invention relates to a method for preparing a patterned molybdenum dioxide thin film through laser induction and a flexible electronic device, and belongs to the technical field of functional material preparation and processing, precursor ink containing molybdenum trioxide nanoparticles, polyvinylpyrrolidone and isopropanol is prepared, a substrate is coated with the precursor ink to form a precursor thin film, and the patterned molybdenum dioxide thin film is prepared. And after drying and curing, carrying out laser direct writing reduction sintering on the precursor film, and reducing and sintering into molybdenum dioxide by utilizing a photothermal effect generated by surface plasmon resonance. The invention aims to overcome the dependence of a traditional process on a high-temperature vacuum environment, and provides a method for efficiently preparing a molybdenum dioxide film with high conductivity and biocompatibility in an environment atmosphere in a patterning manner, and a multifunctional flexible electronic device is constructed based on the film.

The application relates to a decorative guard plate and a mold, which comprise a guard plate body and a guard plate flange, the guard plate flange comprises a movable flange and a fixed flange, the fixed flange is fixed on the guard plate body, and the movable flange is hinged to the guard plate body through a hinge structure; wherein the movable flange has a first state and a second state, when the movable flange is in the first state, the movable flange is unfolded and separated from the fixed flange, and when the movable flange is in the second state, the movable flange is folded and connected with the fixed flange. In the application, the movable flange is unfolded and in the first state when the decorative guard plate is injection molded, therefore, when the structure size of the guard plate is lengthened, the guard plate flange ejection will not collide with the mold, the movable flange is in the second state and folded and fixed with the fixed flange after ejection, and a complete guard plate flange is formed, the arrangement of the structure greatly improves the design freedom of the decorative guard plate, and ensures that the decorative guard plate plays a quality or performance advantage.

A stator coil of a rotating electric machine is formed by a concentric winding method. A stator coil is configured by inserting and connecting hairpin-shaped coil pieces (10, 11, 20, 21, 30, 31) formed from flat wires from one side and the other side in the axial direction. The length of the linear part of the coil piece is half of the axial length of the stator core, a convex shape or a concave shape is formed at the two leg end parts, and the convex part and the concave part are embedded. The coil is composed of three kinds of coil pieces: central coil pieces (10, 11) that connect the slots in the circumferential direction in the vicinity of the radial center of the slots; inner coil pieces (20, 21) that are connected in the circumferential direction so that coil end portions are biased inward in the radial direction than the radial positions of the slots; and outer coil pieces (30, 31) that are connected in the circumferential direction so as to be biased outward in the radial direction. Concentric coil portions formed by connected central coil pieces (10, 11), coil pieces (20, 31), and coil pieces (30, 21) are made to have the same length, so that the resistance values are made to be consistent, and the assemblability is improved.

A display apparatus can include a timing controller, a level shifter including a signal input circuit that receives a first clock signal and a second clock signal, a driving mode conversion circuit that generates one or more mode signals for adjusting a driving mode based on the first clock signal and the second clock signal by itself, a signal output circuit that generates a plurality of scan clock signals based on the one or more mode signals, the first clock signal, and the second clock signal, a shift register configured to generate a scan signal based on the plurality of scan clock signals, and a display panel configured to display an image based on the scan signal. Furthermore, the level shifter is configured to sequentially output a pulse for each of the plurality of scan clock signals in response to a pulse width of the first clock signal being greater than a threshold value.

The application discloses a front light guide plate for a reflective display device and a manufacturing method thereof, comprising a light guide plate body with an incident light surface and an exit light surface oppositely arranged; a plurality of light guide dots formed on the exit light surface for guiding light from the incident light surface to a display surface of the reflective display device; wherein the light guide dots are conical or pyramidal; when the light guide dots are conical, the ratio of the bottom width A to the depth B is less than 0.1; when the light guide dots are pyramidal, the included angle between the inclined surface and the bottom surface is between 55 degrees and 70 degrees. The application optimizes the shape parameters of the dots, so that the light is more efficiently guided to the display surface, thereby significantly improving the overall display brightness under the same light source conditions.

The application provides a semiconductor device and a manufacturing method thereof. The semiconductor device comprises a substrate, vertically arranged active pillars, a gate dielectric layer, a gate, a drain extension liner layer and a grid support structure. The gate dielectric layer is formed only in the channel region of the active pillars; the drain extension liner layer is formed on the sidewall of the drain region to increase the surface area; the grid support structure is formed outside the drain extension liner layer and comprises at least two layers of material and forms a ladder structure along the word line direction. The manufacturing method comprises the steps of forming an active pillar pattern, forming a gate dielectric layer only in the channel region, forming a drain extension liner layer and forming the multi-layer ladder grid support structure through a self-alignment process. The application significantly enhances the mechanical stability of the pillars, reduces the parasitic capacitance and leakage current and comprehensively improves the device performance and reliability by virtue of the unique structural design and self-alignment manufacturing process while effectively reducing the drain contact resistance.

The utility model relates to a novel port adapter suitable for a waveguide antenna, and relates to the technical field of microwave devices. The waveguide antenna comprises a port base arranged on the surface of the waveguide antenna, the port base abuts against a chip, a plurality of chip ports are formed in the surface of the chip in a penetrating mode, and a plurality of port slots are formed in the position, corresponding to the chip ports, of the port base in the thickness direction in a penetrating mode; a plurality of protruding elements and connecting structures are arranged on the surface of the port base, and a plurality of groups of first bonding structures, second bonding structures and third bonding structures consisting of different numbers of protruding elements and connecting structures are also arranged on the surface of the port base; the first bonding structures, the second bonding structures and the third bonding structures abut against the surface of the chip. The port adapter has the advantages that higher-degree-of-freedom design of the port adapter is achieved, the machining time is shortened, and the machining and manufacturing efficiency is improved.

The utility model relates to the technical field of mobile power supply, concretely relates to a mobile power supply. Mobile power supply includes the casing, control circuit board, charging wire and handle plug connector, control circuit board installs in the casing, and one end of charging wire is connected with control circuit board electricity, and charging wire leads out from the casing, and handle plug connector fixed mounting is installed on charging wire, and the handle plug connector is equipped with the plug -in groove, and the charging head of charging wire can be detachably inserted in the plug -in groove to form the handle structure. The casing does not need to set up the storage groove to store the fixed charging head to form the handle structure, avoids the high requirement of the casing design and mobile power supply internal component design layout, improves the problem of mobile power supply overall structure design difficulty. And the handle plug connector is as the independent part, does not influence each other with the casing or internal component of mobile power supply itself, and the design freedom is also bigger, and the design requirement is also lower.

The application discloses a kind of fragrance slow-release ceramic materials and preparation method thereof.The application relates to the technical field of fragrance product.The preparation method is as follows: S1, mixing flaky alumina and calcined kaolin powder uniformly;S2, the above-mentioned powder is heated and stirred while adding hot melted liquid paraffin and additives, and ceramic slurry is obtained by stirring;S3, the prepared ceramic slurry is vacuumized and stirred, and hot-pressing casting is formed, to obtain ceramic green body;S4, the ceramic green body is buried in alumina sintering powder, then put into kiln for first firing, and then take out the buried and fired ceramic block after cooling, and then surface treatment is carried out;S5, the treated ceramic block is immersed in fragrance, and after the fragrance immersion is completed, the ceramic block is dried, and then packaged.The application optimizes the micro-pore structure of porous ceramic block, and uses hot-pressing casting method, to overcome the contradiction between light weight and high strength of traditional porous ceramic, and has high porosity.

This invention relates to a diamond abrasive tool based on additive manufacturing, belonging to the field of diamond abrasive tools. It includes: grinding discs, a frame, and a tool substrate. The frame is a ring-shaped structure obtained through additive manufacturing and is fixedly mounted on the end face of the tool substrate. Multiple grinding discs are circumferentially spaced and fixedly mounted on the frame. The frame has various functional structures. This invention focuses on the additive manufacturing of the non-working layer structure in diamond abrasive tools, and does not involve the arrangement, holding, or bonding processes of diamond abrasive grains. The grinding component is a commercially available or separately prepared functional unit containing diamond abrasive grains. It provides an efficient and economical installation and support solution for the grinding component, achieving a multifunctional composite structure with optimized performance.

The application discloses a kind of editable slide generation method, device, equipment and storage medium.Its features include: in the case where user slide outline is not identified, based on the slide theme information input by user, outline planning is carried out, and the planned slide outline is determined;Global layout planning is carried out based on the planned slide outline, and style constraint and page layout guide are determined;Based on the style constraint and the page layout guide, page generation is carried out for each page slide, and at least one preview slide is determined;If all the preview slides pass the rendering evaluation, then based on the planned slide outline, all the preview slides are assembled, and the target slide is determined.The application can effectively output complete editable slide, and can find and correct various typical layout problems during the generation process, with stable high quality level in multiple dimensions such as clarity, structural, visual design and aesthetics.

The invention relates to an oil-cooled motor iron core structure, an oil-cooled motor and a rotary vane welding combination determining method. The oil-cooled motor iron core structure comprises a first assembly, a second assembly and a third assembly. The component I is laminated by a first punching sheet and a rotary sheet, a boss group is arranged on the outer circle side of the component I, and the boss group comprises a first type of boss with a welding groove and a second type of boss without a welding groove; in the first assembly, a first welding bead communicated with the cooling oil channel is formed through the interval between the boss sets, and an end butt welding bead isolated from the cooling oil channel is formed through welding grooves in the first type of bosses at the two axial ends of the first assembly. The assembly II and the assembly III are laminated by a second punching sheet and a rotary sheet, and an oil injection port and another welding groove are respectively formed in the assembly II and the assembly III; the other welding groove of the second assembly is aligned and communicated with the butt welding bead at the head end of the first assembly to form a second welding bead; the other welding groove of the third assembly is aligned and communicated with the butt welding bead at the end part of the tail end of the first assembly to form a third welding bead; the radial inner sides of the second welding bead and the third welding bead are blocked by the second type of bosses so that the second welding bead and the third welding bead can be isolated from the cooling oil channel.

This invention belongs to the field of structural optimization technology. It discloses a full-scale design method for porous stiffened shells based on multi-piece isogeometric topology optimization. The steps are as follows: (1) Divide the thin shell structure and the stiffening region into high-order NURBS element meshes respectively; (2) Use isogeometric Kirchhoff-Love shell elements to describe the thin shell structure and three-dimensional solid elements to describe the stiffening region. Decompose the high-order NURBS element mesh into Bézier elements, and then construct solid-shell coupled elements; (3) Set the equivalent density as a design variable on each solid element. Transform the design variable into the equivalent density on the control points of the thin shell by applying mapping constraints. At the same time, introduce local volume constraints on the design variable to obtain bone-like porous stiffening, and then construct a full-scale multi-piece isogeometric topology optimization model for porous stiffened shells, and finally obtain the optimized porous stiffened shell structure. This invention improves applicability.

The invention belongs to the technical field of additive manufacturing, and discloses a line section adjustable 4D printing device which comprises a first driving unit, a second driving unit, an FDM printing head and a base plate. The first driving unit is connected with the substrate and is used for driving the substrate to move in a horizontal plane; the second driving unit is connected with a moving plate and is used for driving the moving plate to lift and move; a third driving unit is mounted on the moving plate and is provided with an output shaft which is vertically and downwards placed; the FDM printing head is connected to the lower end of the output shaft, and the third driving unit is used for driving the FDM printing head to rotate around the central axis of the output shaft; the FDM printing head is located above the base plate, and the end face of the lower end of the nozzle is in an inclined slope shape. The problem that in the prior art, due to the fact that asymmetric stress distribution in a structure is difficult to directly encode in the printing process, a simple two-dimensional printing path cannot be autonomously and permanently converted into a complex three-dimensional configuration according to a preset program through single heat treatment is effectively solved.

The utility model discloses a riveting type door end composition and container. In the riveting type door end composition, the door end top corner piece is riveted with the upper door crossbeam and the door end corner column, and the corner column connecting piece is riveted with the lower door crossbeam and the door end corner column. The door end composition is stable in connection, and the freedom degree of material selection is improved.

This disclosure provides a wheel assembly structure for a vehicle. The wheel assembly structure may include: a wheel on which a vehicle tire is mounted; a rotor housing connected to and rotating with the wheel; a stator housing fixed to the vehicle and configured to rotate the rotor housing by applying an electric current; a hub extending from the center of the wheel toward the inside of the vehicle; a vehicle connection portion connected to the stator housing and extending toward the inside of the vehicle; and a shock absorber mounted on the vehicle connection portion and configured to mitigate impacts between the stator housing and the wheel.

A forming method of a semiconductor structure comprises the steps that a substrate comprises a first region and a second region; patterning the first core material layer to form a first core layer; forming a first side wall; patterning the second core material layer to form a second core layer; performing modification treatment on the second core layer exposed in the second region to form a third core layer having an etching selection ratio with the remaining second core layer; forming a second side wall covering the side walls of the second core layer and the third core layer; the second side walls and the third core layer are used as masks to pattern the target material layer, first target structures and second target structures are formed, and the pitch of the adjacent first target structures is smaller than or equal to the pitch of the adjacent second target structures. According to the invention, the SAQP process and the SALELE process are formed at the same time, the degree of freedom of design in the patterning process is improved, and a part of redundant first target structures in the first region adopting the SAQP process can be removed under the condition that a photomask and process steps are not increased.