Types of vacuum cleaners and how they work
Nowadays, many households have carpets, cleaning carpets Be prepared to use a vacuum cleaner. So how many types of vacuum cleaners are there? What is the difference. How does a vacuum cleaner work? Today, the author will briefly introduce the types of vacuum cleaners and the working principle of vacuum cleaners. Types of vacuum cleaners
There are many types of vacuum cleaners, which can be classified into the following categories in terms of structure:
1. Vertical vacuum cleaners: in the form of a barrel Most of them are in shape or square, and are divided into upper and lower parts. The upper part is equipped with a motor, which is the power part, which is complex for dust collection, and the lower part is the dust collecting box.
2. Horizontal vacuum cleaner: rectangular or car-shaped, with front and rear parts, the front part is the dust box, and the rear part is the motor part.
3. Portable vacuum cleaners, the power of portable vacuum cleaners is generally 250W and below, and portable vacuum cleaners generally have 4 forms:
(1) Shoulder type: small size, when used Carrying it on the shoulder, the power is low;
(2) Rod type: the shape is like a rod, the upper end is a handle, and the lower end is a suction nozzle, and the power is low;
(3) Portable Type: Smaller in size, can be used directly in the hand, and low power;
According to the drive motor, vacuum cleaners can be divided into the following categories: AC vacuum cleaners, DC vacuum cleaners and AC and DC dual-purpose vacuum cleaners.
Principle and structure of the vacuum cleaner
The vacuum cleaner relies on the motor to drive the fan impeller to rotate at a high speed, so that the air is discharged at a high speed, and the air in the suction part at the front of the fan is The air in the fan is continuously replenished, resulting in an instantaneous vacuum inside the vacuum cleaner, which forms a negative pressure difference with the outside atmospheric pressure. Then it is filtered by a dust filter to discharge clean air. The greater the negative pressure difference, the greater the air volume, and the greater the vacuuming capacity. Generally, the speed of the internal air flow during vacuuming is very high, rotating 20,000 to 40,000 revolutions per minute, which can suck dust, lice and other small garbage into the interior of the vacuum cleaner. To put it simply, the motor in the vacuum cleaner rotates at a high speed to form an airflow in the main unit to create a vacuum, and the inhalation of the supplementary airflow is used to suck in the garbage.
General vacuum cleaners are equipped with current fuses and “thermal protectors”, so even if the motor is overheated, the temperature rise can be detected in time, and the current to the motor can be temporarily cut off to prevent accidents. Not yet. It is also equipped with an “airflow protector”, which acts when the suction nozzle is blocked and the air stops flowing, opens the emergency air intake, and uses the external cool air to suppress the overheating of the main unit.
Therefore, the vacuum cleaner motor is the heart of the vacuum cleaner, and its performance directly affects the adsorption capacity of the vacuum cleaner. The International Standards Organization (ISO) stipulates that the international standard for the performance of vacuum cleaners is “suction power” (output power), and the suction power is expressed in watts (W), which is the maximum “suction power”. Japan, Germany and other countries also directly use “suction power” to represent the unit of vacuum cleaner performance, but in some areas, “input power” is used to represent the unit of vacuum cleaner performance, so consumers need to pay careful attention when purchasing a vacuum cleaner.
