54results about How to "Regular structure" patented technology

The utility model discloses a bottle lid injection mold structure relates to bottle lid production technical field, including bottom plate, ejection fixed plate and backing pad, the middle part of bottom plate outer wall is equipped with ejection fixed plate, and the middle part of ejection fixed plate is connected with backing pad, the side that the backing pad is away from ejection fixed plate is connected with gear mounting plate, and the middle part of gear mounting plate outer wall is connected with core fixed plate, the one side of gear mounting plate outer wall is connected with support seat through screw, and support seat outer wall is equipped with servo motor, and servo motor output fixedly connected with drive gear, the outer wall of drive gear is engaged with transmission gear, and the outer wall of transmission gear is engaged with overbridge gear, and the both sides of overbridge gear outer wall are engaged with driven gear, the inner wall of driven gear is connected with screw core, and the inner wall of screw core is connected with middle core shaft, the inner wall one side of ejection fixed plate is equipped with no.

The application relates to the engine technical field and discloses an integrated brake rocker arm which comprises a rocker shaft, a lubricating oil channel and a brake oil channel are arranged in the rocker shaft and penetrate the rocker shaft in the axial direction, an electromagnetic valve seat is arranged on the rocker shaft, a high-pressure cavity which is communicated with the lubricating oil channel and the brake oil channel is arranged in the electromagnetic valve seat, an electromagnetic valve which is used for controlling the on-off of the lubricating oil channel and the brake oil channel is arranged in the high-pressure cavity of the electromagnetic valve seat, a plurality of air inlet rockers and exhaust brake rockers are further arranged on the rocker shaft, the air inlet rockers and the exhaust brake rockers are communicated with the lubricating oil channel, the exhaust brake rockers are further communicated with the brake oil channel, and the air inlet rockers and the exhaust brake rockers are arranged in an interleaved and spaced mode. The application integrates the conventional valve rocker and the exhaust brake rocker, cancels the split independent arrangement structure, effectively reduces the installation and arrangement space, and is higher in the integrated degree of the whole machine; and the brake hydraulic medium is realized in the built-in type transmission, the external pipeline is less, and the risk of easy wear and leakage of the external oil pipe is avoided.

The invention discloses flaky alumina and a preparation method thereof, the flaky alumina is in a square sheet shape and has a single crystal structure, the grain size of the flaky alumina is 300-1300 nm, and the grain thickness is less than or equal to 150 nm. The preparation method comprises the following steps: placing roasted SB powder and a quaternary ammonium base solution in a pressure container in a solid-liquid two-phase separation manner, carrying out a gas-solid reaction under certain heat treatment conditions, and drying and roasting the reacted solid powder to obtain the flaky aluminum oxide. The flaky aluminum oxide is regular in structure and flat and smooth in surface, can be used as a polishing material, a coating, a catalysis material and an adsorption material, and is simple in preparation process, easy in raw material obtaining and easy in industrial production.

The invention relates to a YOLO v3 post-processing hardware acceleration method based on a look-up table method, which comprises the following steps of: 1) establishing two look-up tables according to two operators of sigmoid and exp functions involved in a decoding calculation process; 2) analyzing the required storage space according to the quantization bits and the network structure; 3) distributing a corresponding BRAM storage block for the lookup table according to the required storage space; 4) calculating the data to be decoded, and putting a calculation result into a lookup table; 5) inputting to-be-decoded data, putting the to-be-decoded data into the cache unit, and arranging the to-be-decoded data; 6) reading data to be decoded, and searching corresponding calculation data from the lookup table; 7) inputting the calculation data into a parallel calculation unit to obtain decoding data; and 8) putting the decoded data back to the initial position in the cache unit. According to the method, the lookup table is established, the to-be-decoded data in YOLO v3 post-processing is subjected to decoding calculation, post-processing calculation is completed under the condition that few storage resources are used, the hardware scale is remarkably reduced, and the post-processing efficiency is improved.

This invention discloses a method for preparing chemically recyclable polyaldehyde esters. Using linear aldehydes and cyclic anhydrides as raw materials, and Lewis acids or protic acids as catalysts, chemically recyclable polyaldehyde esters are prepared through alternating copolymerization. The general structural formula of the linear aldehyde is as follows: R is selected from alkyl groups with 1 to 20 carbon atoms, alkenyl groups with 2 to 20 carbon atoms, alkynyl groups, terpenyl groups with 5 to 20 carbon atoms, cycloalkyl groups with 3 to 20 carbon atoms, aromatic groups with 5 to 20 carbon atoms, and the above groups containing heteroatoms. This invention discloses a method for successfully preparing polyaldehyde esters from linear aldehydes. The method is simple and controllable, and the product obtained is a fully alternating polyaldehyde ester with a well-defined chain structure. More importantly, the polyaldehyde ester prepared by this method is chemically recyclable; it can be completely depolymerized and converted into raw material monomers through simple pyrolysis, thus achieving the chemical recycling of the polyaldehyde ester.

The invention provides a battery power consumption lightweight analysis device, a lightweight log generation device, a battery power consumption lightweight analysis method, a lightweight log generation method, electronic equipment and a computer program product. The battery power consumption lightweight analysis device comprises: a system configuration analysis module for analyzing a system configuration file of a target electronic device to obtain system attribute feature data; the battery statistical data acquisition and analysis module acquires a battery statistical data packet and analyzes the battery statistical data packet to determine battery characteristic data; the lightweight log generation module carries out packaging processing on the system attribute characteristic data and the battery characteristic data to generate a lightweight log file; the log data reading and analyzing module reads the lightweight log file and analyzes the lightweight log file to extract attribute feature data and battery feature data; and the battery power consumption analysis module is used for analyzing the battery power consumption of the target electronic equipment according to the attribute characteristic data and the battery characteristic data to generate a power consumption analysis result.

The application discloses a phased array synthetic jet micro-actuator device, which comprises a substrate, a substrate, a plurality of vibration units and a top cover; the plurality of vibration units are arranged in the space surrounded by the substrate frame along the transverse direction of the substrate; the diaphragm of the plurality of vibration units can generate vibration perpendicular to the surface of the substrate under an applied driving signal; and the input voltages of two adjacent vibration units are opposite; the upper surface of the substrate is sealingly connected with the top cover; the lower surface of the top cover and the vibration upper surface of the plurality of vibration units form a communication airflow channel; along the transverse direction of the substrate, air outlets which are in communication with the airflow channel are respectively arranged on the two end sidewalls of the top cover; along the transverse direction of the substrate, the substrate is provided with an air inlet which penetrates the thickness of the substrate; external airflow can be sucked into the airflow channel through the air inlet; and the vibration units and the air inlet are alternately and spacedly arranged along the transverse direction.

The invention discloses a preparation method of a composite filling microsphere with a multilayer core-shell structure and a product and application of the composite filling microsphere with the multilayer core-shell structure, collagen is wrapped in an inner core of a poly-L-lactic acid microsphere through an emulsification technology, a stable sodium hyaluronate layer is attached to the surface of the poly-L-lactic acid microsphere, and a collagen-poly-L-lactic acid-sodium hyaluronate composite microsphere with the multilayer structure is formed. Sodium hyaluronate on the surface layer of the composite filling microsphere with the multi-layer core-shell structure rapidly absorbs water and swells, and after injection, recesses are immediately smoothed, the outline is supported, and meanwhile, a moisturizing film is formed, so that the filling part is natural in touch and is not rigid. The inner core poly-L-lactic acid microspheres are slowly degraded, continuously release biological signals, accurately stimulate fibroblast proliferation and push self collagen regeneration, the homology of the wrapped collagen and the self collagen of the human body is high, instant filling can be assisted, a template can be provided for new collagen, the regenerated collagen structure is more regular, and the skin elasticity is more lasting.

The present application relates to the technical field of resin, in particular to a conductive polypropylene composite material and a preparation method thereof.In view of the problems of poor processing fluidity, easy shear damage of conductive network and deterioration of mechanical properties caused by high filling of conductive filler in the prior art, the present application realizes the low volume resistivity, high melt flow rate and excellent mechanical toughness by the solid phase pre-coating technology, and effectively balances the conductivity, processability and strength.

This invention relates to the field of polymer synthesis technology. This invention provides a controlled polymerization method for a high-alternation-degree ETFE copolymer, comprising the following steps: (1) adding a solvent to a high-pressure reactor, replacing the air, and then filling it with an initial monomer mixture to a total pressure of 1.5-2.5 MPa, wherein the monomer mixture is a mixture of tetrafluoroethylene and ethylene; (2) heating to 60-85°C, adding an initiator to initiate the polymerization reaction; (3) simultaneously adding the monomer mixture continuously or semi-continuously during the polymerization reaction; (4) adding a chain transfer agent, and discharging the product after the reaction, i.e., the high-alternation-degree ETFE copolymer. This invention also provides a controlled polymerization method for a high-alternation-degree ETFE copolymer. This invention also provides an application of the high-alternation-degree ETFE copolymer in new energy, aerospace, high-end equipment manufacturing, and photovoltaic fields. The high-alternation-degree ETFE copolymer of this invention has high alternation degree (>92%), high thermal stability, and excellent mechanical properties.

The utility model relates to a chair, and discloses a folding chair, which comprises a first support plate, a second support plate and a seat plate. The folded state of the folding chair is designed into a plate shape, and the unfolded chair state is designed on the basis. In the chair state, the first supporting plate and the second supporting plate are used as front and rear ground contact supports, and the seat plate and the first supporting plate are connected through the limiting groove and the limiting protrusion. After the seat plate is connected with the first supporting plate, a triangular structure is formed among the first supporting plate, the second supporting plate and the seat plate, so that the folding chair is stably in a folded state, the bearing capacity of the seat plate is ensured, and the normal use function of a chair is achieved. Compared with the prior art, the folding chair has the advantages that after the folding chair is converted into the folded state from the chair state, the folding chair is regular in shape, small in occupied space and convenient to store, package, move, transport and the like; 2, the state conversion operation of the folding chair is more convenient; and 3, the structure is simpler and more compact, and the cost is lower.

This invention discloses a dual-substrate circularly polarized reconfigurable omnidirectional antenna based on PIN diode control. The antenna comprises a first substrate and a second substrate. The second substrate has a ground plane printed on it, and the first substrate has a radiating patch printed on it. The radiating patch includes a central square patch, a Γ-shaped stub, a loop antenna, PIN diodes, and via shorting posts. Seamless switching between left-hand and right-hand circular polarization is achieved through the on / off combinations of 16 PIN diodes, with a simple switching logic. High polarization purity is achieved in both polarization modes, and the via shorting posts effectively reduce mutual interference between modes, resulting in strong switching reliability. In both circular polarization modes, the relative impedance bandwidth and axial ratio bandwidth are wide. In the left-hand circular polarization mode, the relative impedance bandwidth reaches 19.38%, covering 2.33-2.83GHz with |S11|<-10dB, and the axial ratio bandwidth reaches 26.3%, covering 2.08-2.71GHz with AR<3dB. In the right-hand circular polarization mode, the relative impedance bandwidth reaches 19.8%, covering 2.32-2.83GHz with |S11|<-10dB, and the axial ratio bandwidth reaches 23.43%, covering 2.11-2.67GHz with AR<3dB, which is significantly better than existing narrowband designs of the same type.

This invention proposes a method and system for Thangka image restoration, relating to the field of image restoration. The method includes: preprocessing the acquired original Thangka images; classifying the preprocessed images into first, second, third, and fourth Thangka images according to their complexity from low to high; sequentially performing damage processing on these Thangka images to form structurally damaged, textured, semantically abnormal, and mixed-damaged images; training these damaged images to form a Thangka restoration model; and using the Thangka restoration model to restore the Thangka image to be restored, forming the target restored image. This invention combines the classification and damage processing of different Thangka image complexities to obtain different types of damaged images, adapting to different damage scenarios. Furthermore, by training and optimizing different damaged images separately, the resulting Thangka restoration model can comprehensively restore Thangka images, ensuring that the restored image has a regular structure, natural texture, reasonable semantics, and high fidelity.

The utility model relates to a bed cover with elastic tight package angle structure, including bed cover, the outer surface bottom of bed cover is fixedly connected with the edge binding, the outer surface bottom of edge binding is fixedly connected with folding gasket, the outer surface bottom of edge binding is fixedly connected with magic tape wool surface, the outer surface of folding gasket is fixedly connected with magic tape hook surface, the outer surface of magic tape hook surface and the outer surface of magic tape wool surface are bonded, the outer surface of edge binding is fixedly connected with the limiting edge. In the utility model, through setting up the folding gasket that can fold and unfold and is adjusted through magic tape bonding, cooperation has the elastic elastic silk, makes the bed cover can adapt to the mattress of different thickness, avoids the situation that the bed cover cannot be used and is discarded because of the thickness change of mattress, saves the money cost of user, reduces the burden of storage and processing old bed cover.

The invention discloses polythioester with a main chain containing a carbon-carbon double bond, the polythioester is of a fully alternating copolymerization structure, each repetitive unit contains a sulfur element and the carbon-carbon double bond, the structural general formula is shown in the following formula (I) or (II), and in the formula, n is selected from 1-500; r1 is selected from hydrogen, methyl or isobutyl; r2, R3 and R4 are independently selected from hydrogen or methyl; r5 is selected from hydrogen, methyl, ethyl or phenyl; and R6 is selected from hydrogen or methyl. The invention discloses alternating copolymerization polythioester containing a carbon-carbon double bond with a clear chain structure, wherein the content of an alternating copolymerization chain link is 99%; a carbon-carbon double bond is introduced into a main chain, so that the polythioester has the advantages of degradability and sulfur content, also has high reaction activity, and is convenient for chemical modification for practical application. (I); and (II).

The invention discloses a lead thiophosphate composite nitrogen-doped carbon porous microsphere material as well as a preparation method and application thereof, and belongs to the technical field of electrochemical energy storage materials. The preparation method of the lead thiophosphate composite nitrogen-doped carbon porous microsphere material comprises the following steps: dissolving a lead salt in an organic solvent, dissolving 2-methylimidazole in water, mixing the two solutions, carrying out solvothermal reaction, separating out a product, and reacting with a gas-phase sulfur source and a phosphorus source under the protection of inert gas to obtain the lead thiophosphate composite nitrogen-doped carbon porous microsphere material. The lead thiophosphate composite nitrogen-doped carbon porous microsphere composite material is obtained. According to the invention, a metal organic framework template method and a chemical vapor deposition method are ingeniously combined, and a brand new path for controllably preparing the lead thiophosphate composite nitrogen-doped carbon porous microsphere material is provided. When the prepared lead thiophosphate composite nitrogen-doped carbon porous microsphere material is used as a sodium ion battery negative electrode, a porous microsphere negative electrode formed by compounding lead thiophosphate and nitrogen-doped carbon shows remarkably improved electrochemical performance.

The invention discloses a four-micro-ring band-pass filter which comprises a first linear waveguide, a second linear waveguide and a third linear waveguide which are parallel to one another and are sequentially arranged in a first direction, and the first linear waveguide, the second linear waveguide and the third linear waveguide extend in a second direction perpendicular to the first direction; the first micro-ring and the second micro-ring are arranged between the first linear waveguide and the second linear waveguide and are sequentially arranged along a first direction; and the third micro ring and the fourth micro ring are arranged between the second linear waveguide and the third linear waveguide and are sequentially arranged along the first direction. By cascading the two double-ring filters with different radiuses and utilizing the vernier effect, the ultra-large FSR of the C wave band is realized while the low loss is ensured, the structure is compact, the process is mature, and the thin-film lithium niobate optical chip is suitable for preparation and application of a large-scale thin-film lithium niobate optical chip.

This invention discloses a heterocyclic polyarylamide-polyhydroxyarylamide precipitated fiber, its preparation method, and a heterocyclic polyarylamide-polybenzodioxazole paper, belonging to the technical field of high-performance organic fiber and paper preparation. The preparation method of the precipitated fiber includes the following steps: A. Preparation of the polymerization solution: 3,3'-dihydroxybenzyl diamine (DHB) and 2-(4-aminophenyl)-5-aminobenzimidazole (DAPBI) are dissolved in an organic solvent containing a solubilizing salt, and then terephthaloyl chloride is added to react and obtain a polymer solution with a solid content of 1-10%; B. Precipitation: After degassing, filtering, metering, and spinning, the polymer solution is mixed with a coagulation bath and precipitated to obtain the heterocyclic polyarylamide-polyhydroxyarylamide precipitated fiber. A heterocyclic polyarylamide-polybenzodioxazole paper prepared from this precipitated fiber is also provided. This invention introduces a heterocyclic polyaromatic amide structure through copolymerization, which not only improves the strength and composite properties of the cyclized PBO paper, but also maintains a decomposition temperature comparable to that of pure PBO fiber, exceeding 600℃, demonstrating excellent thermal stability. Furthermore, this method is simple and easy to implement, making it suitable for industrial production applications.

This invention discloses a telescopic live-line working insulation shielding device with an insulator as the fixing point, belonging to the technical field of insulation shielding devices. It includes: a fixing sleeve, fitted onto the top of the insulator body, with cable-passing grooves on both sides; and a shielding assembly, disposed on the side of the fixing sleeve, comprising multiple hard and soft covers; the multiple hard and soft covers are sequentially and alternately connected to form a hollow sleeve structure, which can be opened and closed relative to each other at its radial midpoint to secure it to the cable; and the hollow sleeve structure has two switchable states: a bent state and a rigid straight state. This telescopic live-line working insulation shielding device with an insulator as the fixing point improves the safety and shielding reliability of live-line work by alternately splicing hard and soft covers to form the shielding assembly.

The application provides a common metal mask plate and an evaporation system. The common metal mask plate comprises a peripheral area and an opening area, the opening area has a plurality of evaporation openings, the peripheral area and the opening area each are a part around the evaporation openings and respectively comprise a bridge part and a first etching part arranged in sequence close to the evaporation openings, a first surface of the bridge part is protruded from a first surface of the first etching part and is used for being attached to a to-be-evaporated substrate, the first etching part is configured to form a first cavity with the to-be-evaporated substrate, the first cavity is communicated with the evaporation openings, an edge of the peripheral area away from the evaporation openings comprises a second etching part, a welding spot for welding a frame is arranged in the second etching part, the first surface of the first etching part is protruded from the first surface of the second etching part, the second etching part is configured to form a second cavity with the to-be-evaporated substrate, and the second cavity is communicated with an external environment. The application can reduce the attachment area of the common metal mask plate and the to-be-evaporated substrate.

The utility model discloses a source bottle heating device and atomic layer deposition equipment, source bottle heating device includes support plate, flexible heating cover, fixed assembly and support leg, support plate is used for filling in the boss inside source bottle, and the top of support plate is bonded with source bottle, and the bottom surface of support plate is flush with the boss bottom surface of source bottle, and fixed assembly is used for fixedly connecting support plate and source bottle, and support plate is detachably connected with source bottle through fixed assembly, and the bottom surface of fixed assembly is not lower than the bottom surface of support plate and the bottom surface of the boss of source bottle, and the side portion of fixed assembly does not protrude to the side surface of the boss of source bottle, and flexible heating cover is sleeved in the outside of support plate, source bottle and fixed assembly fixed together, and the bottom of flexible heating cover is provided with the through hole for the support leg to pass, and the support leg is supported below support plate, and the support leg is detachably connected with support plate, and the support leg is arranged in the through hole of flexible heating cover, and the bottom surface of flexible heating cover is higher than the bottom surface of support leg. Source bottle bottom heat uniformity is good, and prolongs the life of flexible heating cover.

This utility model discloses a film feeding assembly, relating to the field of SMT equipment technology. The assembly includes a mounting plate, a film drive roller, a film mounting roller, a first film transition roller, a stripper assembly, a first drive motor, and a second drive motor. The film drive roller collects the bottom film of the film; the film mounting roller mounts the film; the stripper assembly separates the bottom film from the top film; the first drive motor is connected to the stripper assembly; the shaft of the second drive motor is connected to the film drive roller; the film drive roller, film mounting roller, first film transition roller, first drive motor, and second drive motor are distributed on opposite sides of the mounting plate; the film is drawn from the film mounting roller, passes sequentially through the first film transition roller, the stripper assembly, and the film drive roller, and the bottom film is collected on the film drive roller. This utility model simplifies the structure of the film feeding assembly and reduces manufacturing costs.

The invention discloses a super-early-strength polycarboxylate superplasticizer as well as a preparation method and application thereof, and belongs to the technical field of admixtures for concrete. The preparation method of the water reducer comprises the following steps: dropwise adding a carboxylic acid monomer aqueous solution, an ammonium persulfate aqueous solution and a vitamin C aqueous solution into a methyl allyl polyoxyethylene ether aqueous solution to prepare a prepolymer; the preparation method comprises the following steps: carrying out graft modification on a phosphate monomer and acrylamide, adding a ternary compound of triethanolamine, calcium formate and sodium citrate and an organic silicon defoamer, and adjusting the solid content to obtain the super-early-strength polycarboxylate superplasticizer. A specific monomer combination and a composite modifier are adopted to adapt to a high-sulfur-resistance cement-ultra-high-performance concrete system, the problems that a traditional water reducing agent is poor in adaptability, insufficient in early strength and weak in erosion resistance are solved, synergistic improvement of water reduction, early strength and durability is achieved, the raw materials are environmentally friendly, the preparation process is mild, and the method is suitable for industrial production. And the method is suitable for low-temperature, high-sulfur saline-alkali and other harsh construction scenes.

The utility model discloses a kind of support frame of knitted cloth roll, it includes rack and support position set on rack, support position side is provided with receiving mechanism, rack includes support rod, support position includes the transverse support rod and longitudinal support rod being connected with each other, transverse support rod, longitudinal support rod is fixedly connected with support rod respectively, receiving mechanism is plate-like, receiving mechanism is fixedly connected with support position, receiving mechanism includes receiving plate, receiving plate is fixedly connected with transverse support rod, receiving plate is provided with receiving buffer groove, the receiving plate of the application is improved and transverse support rod horizontal fixed connection, structure is neat and facilitate with AGV dolly etc. Automated conveying equipment is used, production line link efficiency is improved, receiving plate and output plate are respectively provided with receiving buffer groove and output buffer groove, not only when cloth roll can effectively reduce impact, reduce noise when going in and out, more can guide and limit to roll shaft, avoid the scratch or deformation of cloth roll surface due to collision.

The invention discloses a false star filtering and star map recognition method based on multi-sky-area parallelism, which is applied to autonomous attitude determination of a star sensor and comprises the following steps: constructing a multi-sky-area parallelism index database of a whole celestial sphere, dividing a whole celestial sphere space represented by a unit spherical surface, and generating a plurality of candidate sky-area sets which cover the whole celestial sphere and are allowed to be overlapped with one another; the method for extracting star pattern features based on the discretized radial angular distance comprises the following steps: extracting position parameter information of observation star points based on star map data acquired by a star sensor, and constructing a radial feature vector for representing a local spatial distribution relationship of fixed stars for each observation star point in a star map; performing feature matching of the multi-day-area parallel star mode feature vectors, and calculating a matching evaluation index based on the feature matching; and a final star map recognition result is obtained based on iterative screening recognition and false star elimination. And outputting a final star map recognition result for subsequent attitude calculation. The invention further discloses a corresponding system, electronic equipment and a computer readable storage medium.

This invention discloses an integrated molding process for automotive suspension buffer blocks, relating to the technical field of automotive suspension system components. To address the problems of uneven microporous structure, mismatched foaming-gel rates, long production cycles, poor low-temperature performance, and insufficient insert bonding strength in existing processes, the key technical points are: S1: Preparation of modified polyol: Modified polyol components are obtained by high-speed dispersion and mixing of nanoparticles with an average particle size of 20-80 nm, surface-modified with silane coupling agent, and polycaprolactone polyol; S2: Synthesis and degassing of prepolymer: The modified polyol components are reacted with diphenylmethane diisocyanate to obtain a prepolymer with a terminal isocyanate group content of 5-12 wt%, resulting in a uniform micropore size distribution of 50-250 μm, density fluctuation ≤ ±0.02 g / cm³, compression set controlled within 8%, and dynamic fatigue life exceeding 2 million cycles, thus solving the problems of poor microporous structure uniformity, high compression set, and insufficient fatigue life.

The utility model provides a charging pile. Relates to the technical field of charging equipment. The charging pile comprises a charging gun, a first shell, a second shell, a first circuit board located in the first shell and a second circuit board located in the second shell. A part of the plurality of power devices are positioned in the first shell and are fixed on the first circuit board, and the other part of the plurality of power devices are positioned in the second shell and are fixed on the second circuit board; the side, away from the first shell, of the second shell is used for being hung on the bearing piece. The plurality of power devices are electrically connected to form a power conversion circuit, and the charging gun is electrically connected with the output end of the power conversion circuit; the first shell is connected with the second shell, and an air duct is arranged between the first shell and the second shell; the air conditioner further comprises a fan and an air opening, the arrangement direction of the fan and the air opening is perpendicular to the arrangement direction of the first shell and the second shell, the air channel is located between the fan and the air opening, and the fan faces the air channel. The charging pile can meet the heat dissipation requirement of the charging pile with high-density layout.

The present disclosure provides a kind of car audio harness and car audio assembly line, the harness includes power terminal and multiple car audio wiring, each car audio wiring includes insulating coating, plug rubber block, inner wire, inner film, left channel terminal and right channel terminal, insulating coating and inner film are covered the inner wire, head rubber block is used to correspond to be set in injection cavity, injection cavity includes left cavity, middle cavity and right cavity, plug rubber block includes left rubber part, middle rubber part and right rubber part, left rubber part is located in left cavity, middle rubber part is located in middle cavity, right rubber part is located in right cavity, middle rubber part is provided with positioning hole, positioning hole is used to wear positioning column, to make positioning column resist inner film, prevent the structure from deviating, left cavity, middle cavity and right cavity are injected with plastic melt glue simultaneously, to make the plastic after completion is shaped as sound plug, and structure symmetry, this can guarantee the normal work of car audio.

This invention discloses a diesel engine catalyst based on high-entropy oxides and modified adsorbents, and its preparation method. The catalyst uses PtCeFeMnCoO5 high-entropy oxide nanoparticles as the main catalytic active component, supplemented by Cu-Fe modified hydrotalcite-derived composite oxides, CeO2, ZrO2, γ-Al2O3, and cordierite honeycomb ceramic support. The PtCeFeMnCoO5 high-entropy oxide nanoparticles, as the main catalytic active component, possess advantages such as sulfur resistance, heat resistance, and low cost. The internal five-membered metal oxides synergistically enhance the catalyst's catalytic activity and extend the high-activity temperature window. The pre-adsorption and subsequent gelation preparation method based on a carbon black adsorption matrix significantly improves the dispersion effect of the five-membered high-entropy oxide precursor, increases the number of adsorption / catalytic active sites of the five-membered high-entropy oxide, enhances the overall NOx purification performance of the LNT catalyst, and achieves precious metal reduction. The modified hydrotalcite-derived composite oxides replace the Al2O3 coating additive, significantly improving the NOx adsorption capacity of the LNT catalyst.