Working principle - The vacuum cleaner fan motor converts electrical energy into mechanical energy, driving the fan blades to rotate and generate airflow. This airflow sucks dust and debris into the unit. The core function is the motor rotation that quickly draws surrounding air into the equipment. Power and suction - Motor power directly affects suction. In general, higher power means stronger suction, enabling effective cleaning of dirt on floors and in gaps. - A higher power setting can also increase noise. Balancing suction with acceptable noise levels is an important design consideration. Motor types - Series excited motors: Typically provide high suction but can be loud. - Brushless motors: Provide quieter operation and longer lifespan, but are generally more costly. Heat dissipation design - The motor generates heat during use, so effective heat dissipation is critical for reliable operation. - Poor heat dissipation can cause overheating and shorten motor life. - Many vacuum cleaner designs incorporate ventilation holes or heat sinks to manage heat. Practical use attributes - Function: converts electrical energy into suction power to remove dust and debris. - Performance: suction strength varies by motor type; users can expect stronger suction with series motors and quieter, longer-lasting operation with brushless motors. - Design considerations: heat dissipation is a key factor in motor longevity, with ventilation or heat sinking commonly employed. Use scenarios - Domestic cleaning: tackle dirt, crumbs, and dust on hard floors and in edge areas such as along baseboards and under furniture. - Tight spaces and gaps: clean between couch cushions, under chairs, and in other hard-to-reach spots where dust accumulates. - Small spaces and vehicles: effective for quick cleanups in cars, vans, or other compact interiors where larger cleaners are impractical.