10results about How to "Uniform loss" patented technology

The invention provides an oil supply control method and device, electronic equipment and a vehicle. The oil supply control method comprises the steps that when the oil amount in a main oil tank and the oil amount in an auxiliary oil tank are both higher than a preset oil amount threshold value, the idle duration of the auxiliary oil tank is obtained; when the idle duration of the auxiliary oil tank is larger than a preset duration threshold value, whether the auxiliary oil tank meets the oil supply condition or not is judged; when the auxiliary oil tank meets the oil supply condition, the auxiliary oil tank is determined as an oil supply oil tank; and controlling the oil supply tank to supply oil to the engine. The oil supply oil tank is determined according to factors such as the oil quantity of the main oil tank and the auxiliary oil tank and the idle duration of the auxiliary oil tank, and the main oil tank and the auxiliary oil tank are reasonably utilized. The problem of overuse caused by long-term oil supply of a single oil tank is solved, abrasion and loss of the two oil tanks can be balanced, and meanwhile the hidden danger of expiration and failure caused by long-term use of fuel oil in the auxiliary oil tank can be avoided.

The present invention belongs to the field of optical devices, and specifically relates to an optical switch network chip based on the Switch&Select structure and having balanced loss. The chip includes 2N 1×N optical switch matrix units and a cross transmission unit; the 2N 1×N optical switch matrix units are divided into two groups; the input port of the first group of 1×N optical switch matrix units is connected to the output end of an external device; the output port of the second group of 1×N optical switch matrix units is connected to the input end of an external device; the two groups of 1×N optical switch matrix units are relatively arranged on both sides of the cross transmission unit, the output port of the first group of 1×N optical switch matrix units is connected to the input port of the cross transmission unit, and the input port of the second group of 1×N optical switch matrix units is connected to the output port of the cross transmission unit. The present invention supports arbitrary routing of optical signals between input ports and output ports, each transmission path is independent and has no crosstalk, and has the advantages of low loss and loss balance.

The system comprises a group control center, a plurality of groups of water chilling units, a plurality of groups of chilled water pumps, a plurality of groups of cooling towers, a plurality of groups of cooling water pumps, a data acquisition module, a data processing module and a control module, the data acquisition module is used for acquiring operation parameters of multiple groups of water chilling units, multiple groups of chilled water pumps, multiple groups of cooling towers and cooling water pumps in real time; and the health degree prediction module is in signal connection with the data acquisition module and is used for receiving the operation parameters of the data acquisition module. Compared with the prior art, the system has the advantages that the health degree loss among similar equipment is balanced through the multi-objective optimization module, premature damage of part of equipment due to long-term high-load operation is avoided, equipment clusters are relatively coordinated, the overall service life is prolonged, in addition, the equipment runs in a high-efficiency interval as much as possible, and the service life is prolonged. And energy waste caused by faults, low-efficiency operation or simultaneous operation of unnecessary equipment is reduced, so that the overall operation energy consumption is reduced.

The present invention relates to the technical field of power semiconductor modules, and proposes a low-inductance packaging structure of a power semiconductor module, comprising a substrate and a power semiconductor module unit arranged on the substrate, the power semiconductor module unit is used to form a dual-switch circuit structure capable of reducing inductance, the power semiconductor module unit comprises a plurality of lining plates arranged at intervals on the substrate, adjacent lining plates are connected by a first bonding wire, two connected lining plates are connected with a power terminal group extending out of an outer tube shell, the power terminal group comprises two sub-power terminals which are partially overlapped but not in contact with each other, and are used to generate electromagnetic coupling when the two sub-power terminals conduct currents in different directions to reduce inductance; a low-inductance packaging method of a power semiconductor module is also proposed, which is used to manufacture the low-inductance packaging structure of a power semiconductor module proposed by the present invention. The present invention has the advantages of high reliability, high power density and low inductance.

This invention relates to the field of data management technology for new energy vehicle charging piles, specifically a big data-based operational data analysis system for new energy vehicle charging piles. The invention first collects operational data from charging piles, and analyzes usage patterns, charging demand predictions, and charging behavior patterns through time-series modeling and feature extraction. Then, it extracts key operational features of the equipment and evaluates the operational status of charging piles under different conditions. Combining usage patterns, charging demand predictions, and charging behavior patterns, it analyzes future peak hours and high-demand areas. Simultaneously, based on operational status, it calculates the working priority of charging piles and identifies potential faults. This invention also combines the load and operational status of regional charging piles to generate real-time charging pile recommendation strategies. Through the collaborative work of multiple units, this invention provides comprehensive support for the efficient management of charging pile systems.

The invention relates to the technical field of brake fixed calipers, in particular to an anti-deformation brake fixed caliper assembly which comprises a caliper shell and a brake pad, a reinforcing rib assembly is installed on the back face of the brake pad, a butt joint sleeve is fixedly connected to the surface of the reinforcing rib assembly, and a positioning piece is installed on the surface of the caliper shell. The surface of the positioning piece is connected with a regulating block capable of horizontally moving, the butt joint sleeve is slidably connected to the surface of the regulating block in a sleeving mode, the reinforcing rib assembly comprises a reinforcing main body and a plurality of additional blocks, the additional blocks are distributed on the two sides of the reinforcing main body, and the additional blocks are sequentially and detachably connected. And the additional blocks connected to the two ends of the reinforcing main body are detachably connected with the reinforcing main body. The multi-piston brake fixed caliper assembly aims at solving the problems that due to the fact that pistons in the multi-piston brake fixed caliper assembly move unevenly, a brake pad generates pulling force and is bent and deformed.

This invention relates to a polishing device for the outer surface of aluminum alloy profiles, comprising a processing table with several fixed horizontal plates mounted on its top. A first conveyor frame and a second conveyor frame are mounted on the left and right ends of the top of the processing table. Workpieces are placed on the first and second conveyor frames. The invention includes a lifting assembly, a translation assembly, a longitudinal polishing mechanism, and a transverse polishing mechanism. The combined use of the lifting assembly and the longitudinal polishing assembly allows the longitudinal polishing assembly to move up and down. The combined use of the translation assembly and the transverse polishing mechanism allows the transverse polishing assembly to move back and forth horizontally. This avoids excessive localized wear caused by the sisal wheel being in the same position during polishing, resulting in uniform surface wear of the sisal wheel and reducing material loss.

The application discloses a valve grinding device with self-adjusting taper, which comprises a mounting unit, a connecting head arranged at one end of a mounting rod, and a mounting plate arranged at the other end of the mounting rod. The device further comprises an adjusting unit, a nut screw-connected with the mounting rod, and an adjusting assembly rotatably arranged at the bottom surface of the nut. The device further comprises a grinding unit, a swing assembly movably arranged on the mounting plate, a roller pin assembly detachably arranged on the swing assembly, a pushing-out assembly arranged on the swing assembly, a pressing assembly arranged in the swing assembly, and a pushing assembly arranged in the swing assembly. The valve grinding device with self-adjusting taper can change the angle of the swing assembly by rotating the nut and driving the swing assembly through the adjusting assembly, and can change the angles of the multiple grinding units simultaneously. In the rotating grinding state, the roller pin assembly can process and polish surfaces with different angles, and can adapt to valve seats with different angle grinding requirements, and the roller pin assembly can be uniformly worn.

The application relates to the technical field of optical coating, and particularly discloses a kind of depolarization spectrometer prism coating film system, coating film method and application thereof, the film system includes 28 layers of dielectric film layers, and the order from inside to outside is MHML MHMLMHMLMHMHMLMHMLMHMHML, wherein the M layer is Al2O3, the H layer is TiO2, and the L layer is SiO2.The application solves the polarization error caused by the current conventional depolarization spectrometer prism and the problem of uneven energy distribution in the multi-stage light path.In addition, the coating film method realizes high consistency between the actual coating process and the theoretical design by fine control of key process parameters, and ensures that the film system performance is stable and up to standard.

The utility model discloses subsection cooling equipment for a bottom protective plate, which comprises a conveying device and a heating and cooling area which are arranged on a rack, and the heating and cooling area is provided with a heating area, a buffering area and a cooling area along the moving direction of the conveying device; the heating area comprises a first heating plate and a second heating plate which are oppositely arranged, the buffer area comprises a first buffer plate and a second buffer plate which are oppositely arranged, and the cooling area comprises a first cooling plate and a second cooling plate which are oppositely arranged. Thus, the buffer area is additionally arranged between the heating area and the cooling area, the effect of gradually reducing the temperature can be achieved, the temperature change of the bottom protection plate in the heating and cooling processes is effectively balanced, and the problems of plate deformation, warping or cracks and the like caused by stress concentration of the bottom protection plate due to too fast temperature change are solved; the heating plates, the buffer plates and the cooling plates are arranged on the two sides of the bottom protection plate, the temperature distribution of the bottom protection plate in the machining process is more uniform, and the deformation problem caused by temperature difference is reduced.