22 results about "Hexagonal cell" patented technology

The invention discloses a plane matrix type high folding and unfolding bionic antenna truss structure with a negative Poisson's ratio effect, and relates to the technical field of space folding and unfolding mechanisms, the plane matrix type high folding and unfolding bionic antenna truss structure comprises a plurality of cell elements and a plurality of cell element connecting rods, transverse cell elements are connected through the cell element connecting rods, and longitudinal cell elements are fixedly connected through adjacent cell element cross beams; the cell element connecting rods are hinged to the cell elements on the two sides respectively, and the cell elements are three-level positioning inwards-concave hexagonal cell elements; the folding and unfolding antenna truss structure is in a folded state during launching, transportation and silent latency and is in an unfolded working state during on-orbit task execution, the high folding and unfolding ratio characteristic of the antenna provides bionic improvement inspiration for various urgent properties such as stealth and size reduction of a satellite antenna structure, the shape of the antenna folding and unfolding array can be changed in a multi-stage mode, and the antenna folding and unfolding array is suitable for large-scale popularization and application. Therefore, the functions of optimal frequency band adjustment, optimal area expansion, switching of different scanning ranges and the like are realized.

The invention relates to the technical field of cables, and discloses an anti-ultraviolet outdoor cold-resistant power cable adapting to day and night temperature difference. The device is provided with the polyurea sealing micro-capsules, the hexagonal cells, the micro-capsule elastic pieces and the stretching structures, in a low-temperature environment, the polyurea sealing micro-capsules contract, at the moment, the micro-capsule elastic pieces lose supporting force and begin to release elastic potential energy, the hexagonal cells deform and begin to expand outwards, and when the hexagonal cells expand outwards, the trough positions of the stretching structures are pushed to expand outwards; the stretching structure is gradually stretched into a cylindrical outline from a corrugated shape, under the external expansion action of the hexagonal cells and the stretching structure, the cable sheath layer is promoted to actively expand to offset shrinkage stress, the problem of low-temperature embrittlement is effectively avoided, meanwhile, the design of the corrugated structure is used for coping with axial shrinkage of the cable sheath layer, and the tensile strength of the cable sheath layer is improved. The cable is divided into a plurality of independent units by the cable separation rings, the overall axial shrinkage is decomposed into local small-amplitude shrinkage of each unit, and cable distortion and cable insulation layer cracking caused by shrinkage stress accumulation are avoided.

The invention provides a bionic thin-wall gradient hierarchical corrugated pipe structure and a design method. The bionic thin-wall gradient hierarchical corrugated pipe structure comprises a corrugated pipe and a gradient hierarchical corrugated sandwich structure filled in the corrugated pipe, the corrugated shape of the corrugated pipe is controlled by a function, and the wall thickness is equal to that of the filling structure; the gradient hierarchical corrugated sandwich structure is formed by sequentially iterating regular hexagonal cell elements in the cell elements, all vertexes of the regular hexagonal cell elements at all levels are connected through cell element ribs, the side wall surfaces of the regular hexagonal cell elements are corrugated, and the corrugated shapes of the regular hexagonal cell elements at all levels are controlled by a sine function. And gradient ripple design is carried out by controlling ripple amplitudes of all stages of regular hexagonal cell elements. The energy absorption performance of the structure can be remarkably improved, meanwhile, the peak collision force of the structure can be kept at a low level, and harm to people and passengers during collision impact is reduced.

The invention relates to a shin guard (1) comprising a sleeve (2) made of extensible fabric holding a cushioning part (3) which is fixed to the sleeve (2) and configured to be placed in front of all or part of the tibia of a user when the shin guard (1) is in use, the cushioning part (3) comprising a one-piece shell (6) formed of a layer of a cushioning material, the layer of cushioning material being constituted by a paving of individual hexagonal cells (7), characterized in that each hexagonal cell (7) of the shell (6) is connected to its neighbours.

The application discloses a multi-wavelength notch-adjustable topological valley topological photonic crystal filter, which comprises a waveguide interface, a first topological valley topological photonic crystal and a second topological valley topological photonic crystal. The first topological valley topological photonic crystal comprises a plurality of first regular hexagonal cells, a sector-shaped dielectric column is arranged at three interphase vertices of a single first regular hexagonal cell, and the first regular hexagonal cells are arranged in a honeycomb array to obtain N circular dielectric columns with a radius R. The second topological valley topological photonic crystal comprises a plurality of second regular hexagonal cells. A sector-shaped dielectric column is arranged at three interphase vertices of a single second regular hexagonal cell, and the sign of the valley Chern number of the second regular hexagonal cell is opposite to that of the first regular hexagonal cell. The second regular hexagonal cells are arranged in a honeycomb array to obtain M circular dielectric columns, the radius of M1 circular dielectric columns is R, the radius of M2 circular dielectric columns is greater than R, and M1+M2=M. The application can realize a multi-wavelength interval notch function.

The application provides a three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure and a preparation method and application thereof, and relates to the technical field of mechanical metamaterials; the external configuration of the three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure is a circular truncated cone tube structure; the circular truncated cone tube structure comprises a plurality of curved surface concave hexagonal cells arranged around a central axis of the circular truncated cone tube structure and in a gradient along the circular truncated cone generatrix direction; the structure gradient can be first realized by relying on inherent characteristics of the inclined wall surface of the circular truncated cone tube structure, and further controlled by adjusting internal cell parameters; and the skeleton structure can be prepared by a 3D printing process. The three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure has the characteristics of light self-weight, linear deformability, synergistic effects of structure gradient effects and negative Poisson's ratio effects, and deformation characteristics of flexible linear expansion under external load, and can be used in the fields of protective engineering, artificial intelligence, wearable devices, medical devices, artificial prostheses and the like.

The present application relates to the technical field of cable, and discloses an ultraviolet-resistant outdoor cold-resistant power cable suitable for day-night temperature difference; the present application is provided with polyurea sealing microcapsule, hexagonal cell, microcapsule elastic sheet and stretch structure; in low-temperature environment, the polyurea sealing microcapsule shrinks, at this time, the microcapsule elastic sheet loses supporting force, starts to release elastic potential energy, the hexagonal cell deforms and starts to expand outward, the hexagonal cell expands outward and pushes the wave trough position of the stretch structure to expand outward, the stretch structure gradually expands from corrugated to cylindrical profile, under the expanding effect of the hexagonal cell and the stretch structure, the cable sheath layer is actively expanded to offset the shrinkage stress, effectively avoiding the problem of low-temperature embrittlement, meanwhile, the corrugated structure is designed to cope with the axial shrinkage of the cable sheath layer, the cable separation ring divides the cable into multiple independent units, decomposes the overall axial shrinkage into local small-amplitude shrinkage of each unit, avoiding the accumulation of shrinkage stress to cause the cable to twist and the cable insulation layer to crack.

The application discloses a control method based on a novel flexible deformation frame mechanism, and the deformation frame mechanism comprises a hexagonal cell unit, a C-shaped flexible hinge, an S-shaped flexible hinge, a wing trailing edge, a bridging rigid plate and a rigid base; the specific steps of the control method are as follows: the bridging rigid plate drives the hexagonal cell unit to deflect through the C-shaped flexible hinge; after the SMA sheet is heated, the SMA sheet shrinks, the two end bends of the S-shaped flexible hinge outside the surface of the SMA sheet have a flattening trend, and the whole reconfigurable honeycomb core structure deflects. The S-shaped flexible hinge is used to connect two adjacent hexagonal cell units in front and back, so that the chord direction part is full of flexibility and can rotate; the C-shaped flexible hinge and the bridging rigid plate are used to connect two adjacent hexagonal cell units on the left and right, so that the normal direction part has rigidity, thereby the honeycomb structure is stable when rotating. The application can be applied to the fields of aircraft deformable wing filling and dynamic mechanical vehicle body and the like.

Various embodiments may relate to a laser cavity. The laser cavity may include a substrate, a contact layer in contact with the substrate, and an active layer in contact with the contact layer. The active layer may include a lattice including a plurality of hexagonal cells, and a plurality of daisy-like holes, each of the plurality of daisy-like holes including six air bulges aligned substantially with corners of a respective hexagonal cell of the plurality of hexagonal cells such that the laser cavity achieves flat-band bound states in continuum (BIC). The laser cavity may additionally include a cladding layer on a portion of the active layer, a first electrode, and a second electrode such that the substrate, the contact layer, the cladding layer and the active layer are between the first electrode and the second electrode.

The invention discloses a semiconductor device and a manufacturing method thereof, a power module, a power conversion circuit and a vehicle. The semiconductor device comprises at least one device cell, and the at least one device cell is arranged in an array; the device cell comprises a semiconductor body which comprises a first surface and a second surface which are oppositely arranged; wherein the orthographic projection of the first region on the first surface is located in the orthographic projection of the well region on the first surface, and the orthographic projection and the well region are hexagonal; the orthographic projection of the well region on the first surface is provided with a first edge, a second edge and a third edge which are connected in sequence, and the second edge and the third edge form a sharp corner; the second region is at least located at one side of the first edge away from the well region; the doping concentration of the side, away from the well region, of the second edge is smaller than that of the second region, and the doping concentration of the side, away from the well region, of the third edge is smaller than that of the second region. According to the embodiment of the invention, the breakdown voltage of the silicon carbide device with the hexagonal cellular structure can be improved, and the voltage resistance of the silicon carbide device is improved.

A structural temperature self-monitoring system based on a chiral structured shape memory polymer microporous plate, comprising a fixing apparatus, a chiral structured microporous plate, and a triboelectric nanogenerators set. Each chiral element of microporous plate is provided with a hexagonal cell and six chiral legs, and the microporous plate may occur specific deformation under certain conditions. The microporous plate is fixed on the fixed apparatus, and the triboelectric nanogenerators set comprises two lateral sliding mode triboelectric nanogenerators that are symmetrically distributed; the data of deformation of chiral structured microporous plate in converse directions is collected; and a voltage is emerged for measurement. The system can monitor the temperature of any portion of structure without an external power supply, and obtain the temperature data possessing both timeliness and accuracy under the condition of ensuring the integrity and representativeness of temperature data.

The application discloses a three-dimensional hexagonal cell structure, which comprises a first conductive type epitaxial region, a second conductive type well region in the first conductive type epitaxial region, a first conductive type source region in the second conductive type well region and a second conductive type body region in the first conductive type source region; wherein the second conductive type body region is in a convex shape; and a plurality of convexes with the same width and height are arranged on the first conductive type epitaxial region, the second conductive type well region and the first conductive type source region in the vertical direction of the six sides of the hexagonal cell structure, so as to form a plurality of convex mesa surfaces in each direction and a hexagonal mesa structure intersecting the second conductive type body region on the hexagonal cell structure. The structure makes the device have two channels parallel to the cell surface and perpendicular to the cell surface, thereby improving the channel density, reducing the on-resistance of the channel and improving the current-carrying capacity of the device.

The invention provides a honeycomb steel pipe restrained block stone concrete bullet shielding structure and a preparation method thereof. The structure comprises a honeycomb steel pipe structure and block stone concrete filled in the honeycomb steel pipe structure; the honeycomb steel pipe structure comprises a plurality of pipe body structure units, an outer frame steel plate and an internal additional steel plate; each pipe body structure unit is formed by integrally forming a steel plate, the two ends of each steel plate are both bent inwards to form folded edges with the inner angle being 120 degrees, the length of the two folded edges is consistent with the length of a steel plate body section between the two folded edges, and the pipe body structure units and other pipe body structure units of the same specification are spliced and enclosed to form a regular hexagon. The multiple pipe body structure units are spliced and enclosed to form multiple regular hexagon cells, and the regular hexagon cells, the outer frame steel plates and the internal additional steel plates are welded into a whole to jointly form the honeycomb steel pipe structure. The block stone concrete comprises block stone aggregate and a cement-based material. The structure is excellent in anti-penetration performance and high in multi-shot / repeated strike resistance.

This invention relates to the field of composite material preparation technology, specifically disclosing a preparation process for a honeycomb preform, comprising the following steps: Step S1: Preparing two honeycomb preforms of different thicknesses, namely honeycomb preform one and honeycomb preform two, both of which are three-layer composite structures, consisting of a core layer, an adhesive layer, and a reinforcing layer from the inside out; Step S2: Bonding honeycomb preform one and honeycomb preform two together with an adhesive film to obtain a double preform assembly; Step S3: Applying a skin to the outer layer of the double preform assembly, and after overall curing, trimming, and testing, obtaining a complete honeycomb preform. The core layer of the honeycomb preform uses aerospace-grade aramid paper honeycomb with a regular hexagonal cell shape, a cell side length of 3-5 mm, a thickness of 10 mm, and a density of 30-50 kg / m³, to solve the problems of high processing loss, inaccurate dimensions, and poor dimensional stability of finished products in existing processes.

The application discloses a three-dimensional inner recessed negative Poisson's ratio assembly type composite protective structure based on 3D printing, which is characterized by comprising a three-dimensional double-branch inner recessed hexagonal cell body, a steel screw rod and light foamed material, the three-dimensional double-branch inner recessed hexagonal cell body is formed by linearly rotating two double-branch inner recessed hexagonal cells by 90 degrees along a long axis direction to form an orthogonal three-dimensional cell body, a hole is left in the middle of a vertical side branch inclined rib, a high-strength screw rod is arranged to pass through and fix adjacent cell bodies, and the light foamed material is uniformly dispersed in the negative Poisson's ratio structure. Furthermore, the application provides a preparation method of the three-dimensional inner recessed negative Poisson's ratio assembly type composite protective structure based on 3D printing. The application greatly improves the rigidity of the outer inclined rib of the structure, greatly improves the rigidity in the vertical direction, avoids the overall structure from being locally damaged too early, and thus better impact resistance and deformation resistance of the structure are achieved.

A board game apparatus for playing a game can include a hexagonal game board composed of eleven rows and eleven columns forming a 6×6×6 grid of hexagonal cells, two or more sets of game pieces, wherein each set of game pieces includes a group of game pieces. Each game piece has a predefined mode of movement specific to a respective game piece type, allowing players of the hexagonal board game to maneuver game pieces across the hexagonal cells to capture enemy pieces and achieve a game-winning condition. In some embodiments, the grid of hexagonal cells may be implemented a 6×6×6 grid of the hexagonal cells.

This invention discloses an optical waveguide and a three-channel wavelength division multiplexer, including a waveguide interface, a first valley photonic crystal, and a second valley photonic crystal; the first valley photonic crystal is composed of a plurality of first regular hexagonal unit cells arranged periodically with a lattice constant as the period length, and a single first regular hexagonal unit cell has C 3v Rotational symmetry is maintained, with the top and bottom vertices of the first regular hexagonal unit cell forming the first and second silicon dielectric pillars, respectively. The second valley photonic crystal is composed of several second regular hexagonal unit cells arranged periodically with a lattice constant as the period length. A single second regular hexagonal unit cell has C0... 3v The second regular hexagonal cell exhibits rotational symmetry, with its upper and lower vertices forming a second silicon dielectric pillar and a first silicon dielectric pillar, respectively. The side length of the first silicon dielectric pillar is greater than that of the second silicon dielectric pillar, resulting in opposite vortex chirality at point K of the first and second regular hexagonal cells within the same energy band. The valley photonic crystal of this invention possesses C3 symmetry and exhibits higher stability.

A lightweight flood panel includes a frame defining a central void, a lightweight core (e.g., hexagonal cell honeycomb or fiber-reinforced closed cell foam) disposed in the void, and fiberglass sides covering the assembly. The frame provides perimeter support and includes holes for fastening units. A method of manufacture involves adhesively assembling the components under vacuum. A flood barrier system uses multiple such panels secured in series with gaskets and fastening units, each fastening unit including a bolt, adjustment knob, washer, and rivet nut or anchor for water-tight installation across gaps between structures to resist hydrostatic pressure and impacts.

A lightweight flood panel includes a frame defining a central void, a lightweight core (e.g., hexagonal cell honeycomb or fiber-reinforced closed cell foam) disposed in the void, and fiberglass sides covering the assembly. The frame provides perimeter support and includes holes for fastening units. A method of manufacture involves adhesively assembling the components under vacuum. A flood barrier system uses multiple such panels secured in series with gaskets and fastening units, each fastening unit including a bolt, adjustment knob, washer, and rivet nut or anchor for water-tight installation across gaps between structures to resist hydrostatic pressure and impacts.

A method of producing a double-layered sock with a cushion patch positioned between an external and an internal layer of yarn or fabric is provided. The method comprises the external layer over the internal layer of a tubular lay flat fabric. The method also comprises attaching a first polymer cushion patch to the external or internal layer about two inches from one end. The method also comprises a step of attaching a second polymer cushion patch to the external layer about five inches from the first cushion patch. After drawing the external layer over the internal layer, the cushion patch is encased inside the sock. The cushion patch has a honeycomb grid pattern and includes one or two areas of high compression having larger hexagonal cells designed to distribute high compression impact away and throughout the cushion patch, thereby improving user comfort during walking or running.

This invention provides a three-dimensional gradient negative Poisson's ratio thin-walled composite material, its preparation method, and its applications, relating to the field of tensile metamaterials technology. The three-dimensional gradient negative Poisson's ratio thin-walled composite material includes a three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure and an elastic matrix filling material filling its pores. The external configuration of the three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure is a frustum tube structure, which includes a plurality of curved, concave hexagonal cells arranged in a gradient around the central axis of the frustum tube structure and along the generatrix direction of the frustum tube. The composite material provided by this invention fully utilizes the stretchable deformation characteristics of the honeycomb skeleton structure and the mechanical reinforcement properties of the elastic matrix filling material, effectively avoiding the poor structural stability problems caused by high porosity and low stiffness in tensile structures. While further improving the load-bearing strength and overall mechanical properties of the composite material, it achieves continuous linear elongation deformation under tension.

A cellular structure comprising: a lattice formed of a plurality of generally parallel rows of cells; each cell is formed as an irregular hexagonal cell; the cells are oriented such that each cell wall creates an acute, obtuse or reflex angle relative to a horizontal or a vertical axis; each individual row is comprised of a plurality of generally identical cells, wherein the cells are inclined at generally the same degree of inclination; the cells in adjacent rows are inclined at generally opposite degrees of inclination; each wall of each cell forms a common wall between two adjacent cells either in a same row or in an adjacent row such that, with the exception of cells at an outer periphery of the structure or directly adjacent any structural or ventilation apertures, and each cell has a common wall with six adjacent cells with the exception of cells at an outer periphery of the structure or directly adjacent any structural or ventilation apertures; and the lattice is formed with substantially no gaps or spaces between adjacent cells either in each row of cells, or between adjacent rows of cells.