2020年4月28日星期二

Micro air pump

The essence of vacuum adsorption of micro vacuum pump: after the micro vacuum pump is powered on, the pressure difference between the negative pressure generated by the suction port and the external atmospheric pressure is used to firmly absorb the object through the contact elements such as suction cup, so as to hang, fix and move the object.

The next process of vacuum adsorption is the release of the adsorbed object. When it is necessary to release the sucked object, the pump must be shut down first, and do not continue to vacuumize. After the pump stops, the object will not fall off immediately, because the pump has a certain pressure holding capacity, and the vacuum will continue to maintain for a certain period of time (the length of time depends on the air leakage of the system).

But the actual situation is that the current micro air pump, micro vacuum pump and so on, including domestic micro air pump, micro vacuum pump and most foreign micro air pump, micro vacuum pump and so on, because of the internal process principle and other reasons, only allow the gas to flow from the air inlet to the exhaust port, and vice versa. It is not simple to reverse the motor to change the direction of air flow, so as to meet the requirements of releasing objects.



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