7results about How to "Low cost design" patented technology

The embodiment of the invention provides an electrolyte formula generation method, a storage medium and a processor, and belongs to the technical field of secondary batteries. The electrolyte formula generation method comprises the following steps: determining a target physical property parameter index of an electrolyte and at least one battery performance index according to an application requirement of a battery; according to the electrolyte component prediction model, screening out a formula conforming to a target physical property parameter index from the electrolyte component feasible region, and taking the formula as a group of candidate electrolyte formulas; estimating a performance index estimation value of each of the group of candidate electrolyte formulas according to a performance index estimation model, and solving a weighted sum of the performance index estimation values in the at least one battery performance index; and taking the corresponding electrolyte formula of which the weighted sum meets a preset standard as a recommended electrolyte formula. According to the electrolyte formula generation method disclosed by the invention, the optimal battery electrolyte formula can be recommended by comprehensively considering cost, physical property factors and battery performance, and high-efficiency and low-cost design of the electrolyte is realized.

The present invention discloses a standard subarray for receiving tiled phased arrays of low-orbit satellites in the Q / V frequency band. The subarray includes: an antenna cover, an antenna array surface, a tiled phased array receiving module, a synthesis network and a shell; the antenna cover adopts an electromagnetic metamaterial that can effectively improve the circular polarization axial ratio of large-angle scanning; the antenna array surface includes multiple antenna units; the tiled phased array receiving module is based on a multi-channel multifunctional chip, and the chip integrates amplification, phase shifting and attenuation functions. The present invention has the characteristics of flexible beam switching, simultaneous multi-beams, large-angle scanning of low circular polarization axial ratio, high integration and reliability, and modularization. It can be freely spliced, which provides convenience for constructing phased arrays of any scale.

The application relates to a waveguide coplanar slow wave line, belonging to the technical field of frequency scanning antennas, and solves the problem of large space occupation caused by independent design of the slow wave line and the radiation unit of the frequency scanning antenna in the prior art. The waveguide coplanar slow wave line is integrated with a rectangular waveguide; the slow wave line has multiple omega-shaped bends. One radiation unit is arranged on the slow wave line every interval of the omega-shaped bends. The application realizes the longest length of the slow wave line under the premise of fixed spacing of the radiation units, and realizes low profile design by arranging the slow wave line and the waveguide to be coplanar.

This invention proposes a full-size hybrid laminar flow vertical tail prototype structure for low-speed wind tunnels, belonging to the technical field of special test model design for low-speed wind tunnels. The aim is to achieve a lightweight and low-cost design for the full-size hybrid laminar flow vertical tail body while ensuring stability and maneuverability. In this invention, the upper, middle, and lower sections of the vertical tail are connected sequentially. The external body of the vertical tail is covered by a vertical tail skin and a cover plate. Heating wires are laid inside the vertical tail skin on one side of the middle section. Several pressure measurement holes are arranged on the upper and lower sections of the vertical tail. An air intake chamber is installed on the middle section of the vertical tail, comprising 21 independent air intake chambers. Each independent air intake chamber has four air intake holes and one independent air intake chamber pressure measurement hole on its sidewall. Steel pipes from the upper, middle, and lower sections of the vertical tail pass through reinforcing ribs to form a grid structure, with positioning rulers on both sides of the grid. This invention achieves a lightweight and low-cost design for the vertical tail, facilitating model installation in the wind tunnel and alleviating pressure on the support system.

The present invention provides a highly integrated, high-linearity, low-noise amplifier circuit, and relates to the technical field of amplifier circuits. The amplifier circuit is matched through a differential architecture, and the input matching transformer, the output matching transformer, and the source degenerate inductor are highly integrated. It has input matching, output matching, and high-linearity, low-noise amplification functions, while greatly improving the integration of the amplifier circuit, and realizing further low-cost design.

The invention relates to the technical field of air conditioners, in particular to an air guide mechanism and an air conditioner, the air guide mechanism comprises a mounting support and an air guide plate, the mounting support is used for being connected with an air outlet of the air conditioner, and an air guide opening is formed in the mounting support; the air guide plate is rotationally arranged on the mounting bracket so as to shield or expose the air guide port; wherein the air deflector is provided with a connecting part, and the mounting bracket is provided with a first matching part and a second matching part; the air guide mechanism has a first assembly state and a second assembly state; in the first assembling state, the connecting part is rotationally matched with the first matching part, so that the air guide plate rotates within a first angle range; and in the second assembling state, the connecting part is rotationally matched with the second matching part, so that the air guide plate rotates within the second angle range. Through the design of the double assembly states, the technical defect that the air supply direction and angle of a traditional air guide structure are fixed and cannot be adjusted is effectively overcome, and the air guide plate can be rotationally adjusted within two different angle ranges through selective matching of the connecting part and the different matching parts.

The invention belongs to the technical field of direct frequency synthesis, and relates to a design method for miniaturization of a fine-stepping direct synthesis source, which comprises the following steps of: obtaining a frequency interval and a frequency range according to a design target; analyzing the stray according to the frequency division of the high-frequency standard and the low-frequency standard; the high-frequency standard is filtered out through a switch filter, and the low-frequency standard is obtained by carrying out variable frequency division, frequency mixing, amplification and switch filtering on part of frequency points; performing frequency mixing and switch filtering on the high-frequency standard and the low-frequency standard to obtain a design target; the integrated level is high, and miniaturization and light weight are achieved. A cavity filter and an LC filter are all replaced by strip line interdigital filters to be embedded in a PCB, the strip line interdigital filters and other microwave radio frequency devices are subjected to integrated design, and the advantage that the high-frequency strip line interdigital filters are small in size is utilized, so that miniaturization design and light weight are achieved; by adopting a variable frequency division thought, the circuit complexity is simplified, and the filtering difficulty is reduced.