The Design and Research of the Vacuum Cleaner Nozzle Based on the New ECO Standard Requirements
Current floor brush designs on the market can be categorized into brushless,single-brush,and multi-brush types.Brushless designs are typically used as accessories or with canister vacuum cleaners.The single-brush design,known for its simplicity and low cost,offers effective cleaning on both floors and carpets,making it the mainstream choice.Multi-brush designs,often featuring dual brushes,are represented by products such as Shark's Duo-cleaning and Dyson's Double FluffyTM cleaner head.Regardless of single or multi-brush configurations,most designs effectively handle large debris or stacked dust when pushed forward,but larger debris may stack when pulled back.To improve the vacuum seal at the floor brush inlet,a sealing structure—usually composed of soft materials like bristle strips,canvas,or rubber strips—is added to the rear of the inlet with approximately a 1 mm overlap to increase sealing.However,this design has a drawback:when the floor brush is pulled back,the rear seal can block larger debris or dust stacks,causing them to accumulate rather than be suctioned in.To ensure consistent suction efficiency when pushing or pulling the floor brush,we optimized the rear sealing structure.This paper investigates designs that achieve this functionality and com-pares different approaches based on factors such as cost,new EU energy regulations,cleaning effectiveness,and product lifespan,analyzing the strengths and weaknesses of each design.