4results about How to "Strong cost" patented technology

The application relates to the technical field of energy-saving electrical appliances, and discloses an air purifier dust cleaning control method and device, an air purifier and a storage medium, the method comprises the following steps: obtaining operation data of the air purifier, wherein the operation data comprises an inlet particle concentration, an outlet particle concentration, a real-time air volume corresponding to a fan gear, an effective operation duration and an inlet humidity; calculating a real-time purification efficiency and an accumulated dust flux based on the operation data; converting the accumulated dust flux into an estimated filter screen dust dry weight by using an adaptive nonlinear dust prediction model; and jointly judging the estimated filter screen dust dry weight and the decay rate of the actual purification efficiency relative to the benchmark efficiency by using double thresholds, so that the insufficient robustness caused by single parameter misjudgment is effectively avoided; and finally, a graded dust cleaning strategy is matched according to the determined dust accumulation level, which prevents the wear of the filter screen and the dust cleaning structure caused by invalid dust cleaning, ensures complete cleaning when the dust is seriously accumulated, and significantly prolongs the service life of the filter screen and reduces energy consumption.

The present application relates to the technical field of detection circuit suitable for various electric energy information collection terminals, and discloses a detection circuit method suitable for various electric energy information collection terminals. The method sets the ambient temperature, calibrates the shunt resistor and the thermistor, constructs a three-order resistance-temperature mapping relationship, and calculates the thermal resistance and the thermal response characteristics to realize accurate modeling. The thermistor is attached to the shunt resistor and forms a thermal coupling structure by adding heat-conducting silicone grease. The constant current source and the differential amplifier are used to collect voltage, convert resistance value to temperature in real time, calculate the instantaneous current based on the heat balance equation, and then complete energy integration and grade judgment to output various electric parameters. The method integrates modeling, collection, conversion and inversion processes, constructs a complete thermal-electric detection link, does not need traditional current sensors, has the advantages of compact structure, low cost, flexible deployment and the like, and is suitable for low-power distributed terminals.

The present application relates to the technical field of cleaning electric appliances, and discloses a multi-node fluid driving system and method based on a single power source, which comprises a power source for generating pressurized and negative pressure fluid, a double-layer distribution valve and a plurality of fluid energy conversion devices. The first layer valve of the double-layer distribution valve switches between two channels of the power source to selectively output pressurized or negative pressure fluid to the second layer valve; the second layer valve switches between a plurality of pipeline nodes to direct the target fluid to the designated energy conversion device. The device converts the fluid pressure energy into mechanical energy to drive the external load. The present application fully utilizes the natural two-way fluid characteristics of the pump body, replaces the traditional redundant motor reduction mechanism with highly integrated fluid distribution logic, realizes various complex actions such as module lifting and garbage compression, significantly reduces the hardware cost and simplifies the overall stress layout, and has engineering universality.

This invention relates to the field of energy-saving electrical appliance technology, and discloses a method, device, air purifier, and storage medium for controlling dust removal in an air purifier. The method includes the following steps: acquiring the operating data of the air purifier, including the inlet particulate matter concentration, the outlet particulate matter concentration, the real-time airflow corresponding to the fan speed, the effective operating time, and the inlet humidity; calculating the real-time purification efficiency and cumulative dust flux based on the operating data; converting the cumulative dust flux into an estimated filter dust dry weight using an adaptive nonlinear dust prediction model; jointly judging the estimated filter dust dry weight and the attenuation rate of the actual purification efficiency relative to the benchmark efficiency using a dual threshold, effectively avoiding insufficient robustness caused by misjudgment of a single parameter; and finally matching a graded dust removal strategy according to the determined dust accumulation level, which not only prevents wear on the filter and dust removal structure from ineffective dust removal, but also ensures thorough cleaning in cases of severe dust accumulation, thereby significantly extending the filter's service life and reducing energy consumption.