Why can a vacuum cleaner suck up dust

In the vacuum cleaner, there is a small electric motor and an impeller. As soon as the electricity is connected, the electric motor drives the impeller to rotate very quickly, driving the air out of the vacuum cleaner. At this time, the outside air comes in to replenish, and at the same time, the dust on the ground is brought into the vacuum cleaner.

The vacuum cleaner removes dust, mainly because it has an electric exhaust fan mounted on its "head". There is an air impeller on the rotating shaft of the exhaust fan, after the power is on, the exhaust fan will produce extremely strong suction and pressure at a speed of 5000 revolutions per second, under the action of suction and pressure, the air is discharged at high speed, and the air of the dust collection part at the front end of the fan continuously replenishes the air in the fan, resulting in an instantaneous vacuum inside the vacuum cleaner, and a negative pressure difference is formed with the outside atmospheric pressure, and under the action of this pressure difference, the air containing dust is inhaled. Dust and other debris enter the dust filter bag through carpet or floor brushes, long pipes, elbows, hoses, and hose joints in turn, and dust and other debris are trapped in the dust filter bag, and the air is purified by the filter and discharged by the tail of the body.

Because the gas is heated as it passes through the motor, the gas discharged from the tail of the vacuum cleaner is hot.

The vacuum cleaner's vacuum bin is equipped with a dust collection box, and the dirt is left in the dust box, and when the box is full, it can be taken out and cleaned with water. The vacuum cleaner is equipped with different parts to complete different cleaning tasks, such as a floor brush to clean the floor, a flat brush to clean sofa tops, bed sheets, curtains, etc., and a small nozzle to remove dust in small corners and dirt in some household appliances.

According to the structure, vacuum cleaners can be divided into vertical, horizontal and portable. The working principle of the vacuum cleaner is to use an electric motor to drive the blades to rotate at high speed, generate air negative pressure in the sealed housing, and suck up dust.

How a household vacuum cleaner works.

To choose the best home vacuum cleaner, you first need to understand how a home vacuum cleaner works. Vacuum cleaners generally use motors to drive the impeller to rotate at high speed, so that a local vacuum is formed in the dust collection room. The air pressure difference is formed outside the dust collection room to generate air flow, and the dust is sucked into the dust collection room with the air flow, and the dust is filtered to retain it in the dust collection room and discharge clean air.

Under the action of atmospheric pressure, because there are fan blades in the vacuum cleaner, the flow velocity generated by the motor is larger, so as to reduce the pressure, and the pressure of the outside is stronger than that of the inside, so the vacuum cleaner sucks up the dust. (Physics).

The motor operates with a large number of electrons, and the charged body attracts small and light objects, so the dust is sucked in.

The vacuum cleaner can't suck the quilt, even if the quilt is spread on the ground and pressed to the corners, it can't be cleaned.

The most earthy method is the most effective: hang the quilt outdoors and beat it, which is both clean and sterilized.

The vacuum cleaner can suck up dust is related to the pressure difference between the inside and outside of the vacuum cleaner. The pressure difference is that the vacuum cleaner uses the high-speed rotation of the motor to drive the blade group to rotate, so that a local vacuum is generated inside the vacuum cleaner. The lighter the load on the motor, the greater its starting torque and the higher the rotational speed, resulting in a large vacuum inside the vacuum cleaner.

With this vacuum, the vacuum cleaner can use the pressure difference between the inside and outside to vacuum the dust.

The working principle of the vacuum cleaner is that the motor of the vacuum cleaner rotates at high speed, inhales air from the suction inlet, makes the dust box produce a certain vacuum, and the dust enters the dust bag in the dust box through the ground brush, pipe, handle, hose and main straw, and the dust is left in the dust bag, and the filtered air enters the motor through a layer of filter sheet, which is a protective barrier to prevent the dust bag from breaking and the dust from being inhaled into the motor.

The air entering the motor flows out through the motor, and due to the continuous wear and tear of the carbon brushes during the operation of the motor, another filter is added before flowing out of the vacuum cleaner. The finer the filter material, the cleaner the air can be filtered, but the worse the air permeability, which affects the air volume sucked in by the motor and reduces the efficiency of the vacuum cleaner.

The vacuum cleaner is mainly composed of three parts: dust collection, dust collection and dust filtration, which generally includes a string commutator motor, a centrifugal fan, a dust filter (bag) and a dust collection accessory. Generally, the power of vacuum cleaners is 400-1000w or higher, and the power of portable vacuum cleaners is generally 250w and below.