20results about How to "Lightweight effect is good" patented technology

The application relates to the battery technical field and discloses a battery pack and a power utilization equipment, which comprises a first beam body, a cover plate, a partition plate and a bottom plate. The first beam body comprises a first beam main body and a mounting piece connected with each other, the first beam main body is provided with an exhaust passage, the mounting piece is located on one side of the first beam main body along a second direction, the mounting piece is provided with a penetrating air inlet, the air inlet is communicated with the exhaust passage, the cover plate is connected with one end of the first beam main body which is away from the mounting piece, the partition plate is connected with the mounting piece, the partition plate, the first beam main body and the cover plate surround a containing cavity, a plurality of pressure relief parts are arranged on the partition plate, a gas collecting cavity is formed between the bottom plate and the partition plate, the gas collecting cavity is communicated with the air inlet, the bottom plate is connected with one end of the first beam main body which is away from the cover plate, and the end part of the partition plate which is close to the air inlet along the second direction is arranged in a spaced mode with the air inlet. The battery pack disclosed by the application reduces the material consumption of the partition plate.

The invention discloses a stable-structure, fire-extinguishing and flame-retardant lightweight composite material plate which is characterized by comprising a protective surface layer, an energy-absorbing buffer layer and a fire-extinguishing and flame-retardant inner layer which are sequentially compounded from outside to inside, and all the layers are integrally formed into the plate through a continuous hot-pressing compounding process; the preparation method of the composite plate comprises the steps of raw material pretreatment, preparation of each layer of continuous blank, and integrated forming and post-treatment of the continuous plate. The composite material plate is applied to a new energy battery shell. The invention aims to solve the problems of single function and insufficient safety protection performance of the existing new energy battery shell, realize the functions of stable integrated structure, fire extinguishment, flame retardance and light weight, improve the comprehensive safety protection performance of the battery shell, simplify the production process and reduce the production cost.

This invention discloses a lightweight deep neural network array direction finding method based on data redundancy removal, which solves the problem that the traditional RDNN direction finding method has a large number of deep neural network nodes and cannot achieve network lightweighting. The method performs redundancy removal operation on the upper triangular elements of the covariance matrix, simplifies the number of subsequent hidden layer nodes, reduces the computational complexity of the model, and ensures that the direction finding accuracy of the model is not lost, thus realizing high-precision direction finding of lightweight deep neural networks.

The present application relates to the field of rail vehicle technology, and provides a bogie frame, a bogie and a rail vehicle. The bogie frame comprises a box beam, a load bearing beam, an inner vertical plate, an outer vertical plate, a load bearing bottom plate, a load bearing top plate and a leaf spring. The box beam is hollow inside and forms mounting channels. The load bearing beam is arranged on the box beam. The inner vertical plate is curved and connected to the load bearing beam by welding to form a kingpin channel. The outer vertical plate is connected to the box beam by welding. The load bearing bottom plate is connected to the box beam, the inner vertical plate and the outer vertical plate by welding. The load bearing top plate is arranged above the load bearing top plate. The top of the box beam is open. The load bearing top plate extends above the box beam and is connected by welding to close the top opening. The load bearing top plate is also connected to the load bearing beam, the inner vertical plate and the outer vertical plate by welding. The leaf spring is mounted in the mounting channel. The leaf spring extends along the longitudinal direction of the box beam. The two ends of the leaf spring are provided with pads for connecting to wheelset shaft sleeves. The present application has the characteristics of simple structure, high strength and convenient forming.

The invention relates to the related technical field of brake friction materials, in particular to a caragana microphylla fiber reinforced light copper-free brake friction material and an operation method thereof. The friction material is composed of caragana microphylla fibers, sepiolite fibers, composite mineral fibers, phenolic resin, crystalline flake graphite, petroleum coke, aluminum oxide, friction powder, calcium carbonate, vermiculite powder, precipitated barium sulphate, zinc stearate and other functional components. Wherein the caragana korshinskii fibers have multiple excellent properties such as low density, high specific strength, environmental friendliness and reproducibility, the economic value of caragana korshinskii crops can be improved while the performance of the friction material is improved and the lightweight requirement is met by introducing the caragana korshinskii fibers into the resin-based brake friction material, and the economic value of the caragana korshinskii crops can be improved by adopting a method of combining alkali treatment and coupling agent treatment. The mechanical strength of the caragana microphylla fiber and the interface bonding strength of the caragana microphylla fiber and a resin matrix are improved, so that the enhancement potential of the caragana microphylla fiber is exerted, and the comprehensive performance of the friction material is optimized.

The utility model discloses a composite flat plate assembly and a composite flat plate conveying belt, and belongs to the technical field of conveying belts. The composite flat plate assembly is characterized in that the upper band plate, the lower band plate, the upper pin sleeve and the lower pin sleeve define a semi-closed cavity, sealing baffles are further arranged at the two ends of the upper band plate and the two ends of the lower band plate, and the semi-closed cavity is a closed cavity defined by the sealing baffles and the hinge units of the adjacent composite flat plate assemblies. The composite flat plate conveying belt has the advantages that the semi-closed cavity is defined by the upper belt plate, the lower belt plate, the upper pin sleeve and the lower pin sleeve, the light weight effect of the composite flat plate conveying belt is achieved, the upper belt plate of the composite flat plate can be made of abrasion-resistant materials to meet the abrasion requirement, and the lower belt plate is made of high-strength materials to meet the bearing requirement. Compared with a flat plate conveying belt of an integrally-poured hollow flat plate, although the flat plate conveying belt has a good light weight effect, the flat plate conveying belt is more flexible in application and lower in maintenance difficulty and replacement cost.

This invention relates to the field of welding materials technology, and particularly to a high-performance aluminum-lithium alloy flux-cored welding wire and its preparation method. The high-performance aluminum-lithium alloy flux-cored welding wire comprises: an aluminum-based metal strip outer sheath; and flux powder filled within the outer sheath. The flux powder includes deoxidizing components, alloy components, arc-stabilizing components, slag-forming components, and binding components. The alloy components of the aluminum-lithium alloy flux-cored welding wire, by mass percentage, include: Cu: 3.7%-4.3%, Li: 0.8%-1.5%, Mg: 0.25%-1%, Zr: 0.1%-0.16%, with the balance being Al and unavoidable impurities. The burn-off rate of active elements is significantly reduced, and the composition control accuracy reaches ±0.05%. The flux structure encapsulates highly active elements such as Li, Mg, and Zr in powder form within the aluminum-based outer sheath, avoiding high-temperature volatilization and oxidation in traditional smelting processes. These elements are released only during welding, achieving precise composition control and enabling the stable preparation of aluminum-lithium alloy welding wires with high Li content (2%-3%).

The invention belongs to the field of new energy vehicles, and provides a lightweight battery bracket, which comprises a tray, a top cover, a spacing assembly and a connecting beam, the tray comprises an aluminum cladding, the bottom of the aluminum cladding is provided with a metal reinforcing plate distributed along the periphery of the aluminum cladding, the inner side of the metal reinforcing plate is provided with a non-metal liquid cooling groove, and the bottom of the non-metal liquid cooling groove is provided with a supporting plate. The two sides of the supporting plate are connected with the side faces of the tray, the top cover comprises a left cover plate, a middle cover plate, a right cover plate and a non-metal cover plate connected through a dovetail structure, and the non-metal cover plate and the non-metal liquid cooling groove are both made of ultra-high molecular weight polyethylene materials. By adopting the design of the single-layer aluminum cladding and the non-metal liquid cooling groove, the light weight effect can be achieved on the basis of realizing liquid cooling; and the top cover adopts the non-metal cover plate as a transition part among the left cover plate, the middle cover plate and the right cover plate, so that the flow of circulating water in the battery interval position is reduced, and the light weight is further realized on the basis of improving the cooling efficiency of the circulating water.

The utility model relates to rail transit vehicle technical field, aims at solving the problem that the bottom plate of the vehicle body underframe structure adopts the equal section aluminum alloy section bar of longitudinal arrangement in prior art, cannot realize the change of bearing capacity in longitudinal direction, and the lightweight effect is limited, provides a kind of rail transit vehicle underframe structure, including two oppositely arranged underframe boundary beams, and underframe boundary beam is arranged along longitudinal direction;A plurality of underframe floor units are arranged between two underframe boundary beams, and underframe floor unit is arranged along transverse direction, and both ends of underframe floor unit are respectively fixedly connected on two underframe boundary beams, and all underframe floor units are spliced to form complete underframe floor;The utility model sets up underframe floor as a plurality of underframe floor units, and underframe floor unit is arranged transversely, and the underframe floor formed by the splicing of a plurality of transversely arranged underframe floor units can realize the change of bearing capacity in longitudinal direction, and different underframe floor units are arranged according to the different load demand, and lightweight can be realized to a greater extent.

This invention relates to the field of rail vehicle technology, providing a train bogie and a rail vehicle. The train bogie includes a frame and a wheel drive system. The frame includes a load-bearing body and two leaf springs. A center pin channel is formed in the middle of the load-bearing body, and two mounting channels are formed along the longitudinal direction of the frame. The two leaf springs are respectively mounted in the two mounting channels. The wheel drive system includes a shaft core, a bushing, and two wheels. The shaft core is rotatably mounted inside the bushing. A gearbox is constructed on the bushing, and a driving gear is provided inside the gearbox. A driven gear is sleeved on the shaft core, and the driving gear and the driven gear mesh externally. The two wheels are respectively mounted on both ends of the bushing via bearings, and the two wheels are respectively connected to both ends of the shaft core via flexible plates. Each leaf spring has a pad at both ends, and the pad is connected to the bushing. The load-bearing body and leaf springs replace the original crossbeam and side beam structure, resulting in a significant weight reduction effect on the frame.

The application discloses a rear cross beam structure, a vehicle frame and a vehicle. The rear cross beam structure comprises a main body, a connecting piece and a mounting piece. The first side wall is concave upward and downward in the first direction, and the second side wall is convex upward in the second direction. The load bearing capacity of the rear cross beam on the towing hook is improved. Due to the distance between the towing part and the towing hook, the first structure section and the second structure section are formed at different heights to further increase the torsional resistance of the first connecting section, improve the reliability when supporting the towing object, reduce the torsional force applied to the main body in the direction of the combined dynamic inertia direction along the gravity direction of the towing hook, further avoid the torsional deformation of the main body, the overall rear cross beam mechanism can reduce the thickness to obtain a good lightweight effect, improve the overall structural reliability of the rear cross beam structure, reduce the welding difficulty requirement and quality risk, improve the overall vehicle handling performance, and reduce the braking distance.

The utility model discloses a motor assembly for an aero-engine, which comprises a magnetor, a starting motor and a support, and the magnetor and the starting motor are mounted on the same support. The support is provided with a positioning claw matched with a magneto, a first positioning hole used for being matched with a cartridge receiver and a second positioning hole matched with a starting motor, and the magneto is connected with the starting motor through a gear transmission mechanism. According to the scheme, the problem that the light weight effect of a motor assembly in the prior art is insufficient is solved.

The utility model discloses a battery device and electric equipment. The battery device comprises a battery box, a battery monomer and an adhesive. The single battery is arranged in the battery box and comprises a battery body and an insulating film, the battery body is provided with a mounting surface, the mounting surface is provided with an anti-explosion valve, and an avoiding space is formed in the position, corresponding to the anti-explosion valve, of the battery box; the insulating film at least partially covers the mounting surface, the insulating film is provided with an exposing hole for exposing the mounting surface, and the exposing hole and the explosion-proof valve are arranged in a staggered manner; the bonding glue is arranged corresponding to the exposing hole and is used for bonding the battery body and the battery box; the battery box comprises a box body and a supporting piece, and a supporting surface is arranged in the box body; the supporting piece is arranged on the supporting face, and the supporting piece and the supporting face define an avoiding space. The battery monomers are arranged in the box body, the exposing holes are arranged corresponding to the supporting pieces, and the bonding glue is used for bonding the battery body and the supporting pieces. According to the technical scheme, the bonding and fixing strength of the battery monomers in the battery box can be enhanced, and the mounting stability of the battery monomers is improved.

The utility model relates to the technical field of vehicles and provides a vehicle door inner plate, a vehicle door assembly and a vehicle in order to solve the technical problems that vehicle doors of some known vehicles are heavy and high in cost. The vehicle door inner plate comprises a plate body, a plurality of mounting parts and a plurality of reinforcing parts, the mounting parts and the plate body are integrally formed, the thickness of the mounting parts is larger than that of the plate body, the mounting parts are used for mounting vehicle accessories, and the reinforcing parts are connected with the plate body. The reinforcing parts are connected to the corresponding installation parts in a regional mode, and the reinforcing parts are used for improving the strength of the corresponding installation parts. The automobile door inner plate has the beneficial effects that the strength of the automobile door inner plate is improved, and the weight of the automobile door inner plate is reduced.

The invention relates to a four-axis unmanned aerial vehicle shell, in particular to a 3D-printed integrated porous structure four-axis unmanned aerial vehicle shell and a manufacturing method thereof. The shell is of a triple periodic TPMS lattice porous structure, and the triple periodic TPMS lattice porous structure is formed by permutation, combination and connection of a plurality of repeated TPMS basic units; in the direction from the fixed end to the free end of the vehicle arm, the TPMS basic units are gradually arranged according to gradient change, and the wall thickness of crystal lattices is gradually increased; the four-axis unmanned aerial vehicle shell is high in heat dissipation performance and has the excellent energy absorption characteristic, and the structural weight is further reduced; the light weight effect is remarkable while the protection performance of the shell is improved, and the structural strength and the light weight characteristic are both considered.

This invention discloses a drone-mounted fire-fighting projectile pod, belonging to the field of drone fire-fighting equipment technology, aiming to solve the problems of insufficient transportation stability, deployment safety, and accuracy when fire-fighting projectiles are used in conjunction with drones. The pod includes a main structure, a projectile connector, a suspension and deployment system, sensing and control components, a safety valve, an altitude-holding device, and an interface structure. The main structure adopts an aerospace-grade aluminum alloy unibody design, adaptable to various specifications of fire-fighting projectiles such as 2.5KG, 10KG, and 20KG. The suspension and deployment system adopts a motor-driven gear and gear-driven rack design, all integrated into one unit. The sensing and control components include a Hall sensor, a control circuit board, and a manual projectile mounting switch. The safety valve has a mechanical pin-type safety structure. The altitude-holding device uses millimeter-wave scanning radar. The interface structure has multiple reserved ports and a standardized design. This invention achieves reliable control of the entire process of fire-fighting projectile transportation, mounting, and deployment, with strong adaptability and high safety, and can be widely used in drone fire-fighting operations.

This utility model discloses a lightweight commercial vehicle battery frame bracket assembly, comprising a main frame made of aluminum alloy profiles, a hollow base plate structure disposed at the bottom of the main frame, an elastic limiting block disposed on the inner side of the main frame, a clamping rod assembly movably connected to the top of the main frame, and an integrated mounting bracket disposed on the outside of the main frame for connection with the vehicle frame longitudinal beams; the main frame includes four frame profiles and four corner connectors bolted together; the cross-section of the frame profiles is a hollow cavity structure with multiple reinforcing ribs. This utility model achieves significant weight reduction through structural innovation and material optimization, while ensuring excellent load-bearing capacity, vibration resistance, and durability.

The application provides a kind of track traffic data light weight acquisition method based on depth clustering, in view of the problems that the existing track traffic video image data light weight method has high computational complexity, cannot intelligently identify and screen high value data, the application realizes the low-dimensional feature extraction of high-dimensional video image data, local structure capture and intelligent clustering through the cooperative work of data preprocessing, convolution auto-encoder, UMAP manifold learning and GMM clustering.The application discards the additional training process of the traditional clustering network, significantly reduces the computational complexity, reduces the network load and improves the transmission efficiency, accurately identifies and screens the data structure, meaning and value, provides technical support for the edge deployment, real-time response and resource saving of track traffic intelligent operation, and is suitable for video image data light weight processing in multiple scenes such as maintenance, work detection, station and platform.

The utility model relates to the field of aviation technology, concretely relates to a fixed wing aircraft embedded rudder engine transmission structure, including fuselage, fixedly connected on the main wing of fuselage, the aileron of rotary connection in one side of main wing and rudder engine, main wing and aileron are integrally connected through composite material flexible connecting structure, and rudder engine is embedded in the fuselage, and the output gear of rudder engine is transmission connection with aileron root, and the center axis of rudder engine output gear rotation coincides with the extension line of aileron rotation axis and is arranged, and through composite material, the integration lightweight is realized, and more through the creative space layout and function coupling of transmission system and integration structure, completely eliminate transmission gap, and realized the revolutionary assembly experience of " aligning and combining", thereby guaranteeing the extremely high control accuracy and reliability at the source.