The working principle of micro water pumps is mainly based on the different working principles of different types of water pumps, including centrifugal pumps, diaphragm pumps, scraper pumps, etc.

1. Centrifugal pump

The working principle of a centrifugal pump is to use centrifugal force to suck water in from the injection port and then discharge it through the pump casing. It mainly consists of components such as impeller, pump casing, and motor. After the motor starts, the impeller begins to rotate, generating centrifugal force to suck water in from the injection port and then discharge it through the pump casing. Due to its simple structure and high efficiency, centrifugal pumps have been widely used in many fields.

2. Diaphragm pump

The working principle of a diaphragm pump is to suction and discharge liquids through the expansion and contraction of the diaphragm. It consists of two diaphragms, inlet and outlet valves, transmission mechanisms, and other components. When the transmission mechanism is activated, the diaphragm will undergo deformation due to expansion and contraction, thereby achieving suction and discharge of liquid. Due to its compact structure and easy maintenance, diaphragm pumps have been widely used in fields such as chemical and medical industries.

3. Scraper pump

The working principle of a scraper pump is to suck in liquid from the injection port through the movement of the scraper, and then discharge it through the pump casing. It mainly consists of scraper, pump casing, motor and other components. After the motor starts, the scraper starts to move, sucking in the liquid from the injection port and then discharging it through the pump casing. Due to its compact structure and smooth operation, the scraper pump has been widely used in fields such as food and chemical engineering.