Bionic type piezoelectric pump

Abstract

The invention provides a bionic type piezoelectric pump. The bionic type piezoelectric pump comprises an upper sealing piece, a lower sealing piece, a cavity, a water inlet hose, a water outlet hose, a flexible piezoelectric driving piece B and a flexible piezoelectric driving piece A. A counter bore A, a water inlet and a water outlet are formed in the upper sealing piece. The water inlet is provided with a valvula valve A, and the water outlet is provided with a valvula valve C. The cavity is provided with a pump cavity, a water inlet connecting pipe, a water outlet connecting pipe, a water inlet water-collection hole and a water outlet water-collection hole. A one-way flowing valvula valve B is arranged in the pump cavity. The counter bore A corresponds to the pump cavity in position and is used for storing the flexible piezoelectric driving piece A. The lower sealing piece is provided with a counter bore B. The counter bore B is used for mounting and bonding the flexible piezoelectric driving piece B therein. According to the bionic type piezoelectric pump, a double-cavity double-vibrator structure is adopted; the pump cavity, the inlet and the outlet are provided with the valvula valves; the heart of a human body is simulated; and the bionic type piezoelectric pump is provided with the multiple pump cavities and the multiple valvula valves, and the capacity and pressure of the pump can be effectively increased. New reference is provided for research of an artificial heart.

Description

technical field [0001] The invention belongs to the field of piezoelectric pump research, in particular to a fully flexible multi-cavity valve bionic piezoelectric pump. Background technique [0002] Driven by a flexible piezoelectric drive plate, the piezoelectric pump realizes the transportation of the medium by periodically changing the volume of the pump chamber. In order to realize the one-way transportation of the medium, increase the pump flow rate and improve the efficiency of pump transportation, a valve can be installed at the pump inlet or outlet, which is called a valved piezoelectric pump. At present, the valves of piezoelectric pumps with valves are generally hard sheets, which change the closed state under the action of pressure difference. Since this kind of valve is a hard sheet, the damage to the conveying medium is relatively large during the opening and closing process, which is not conducive to the transmission of some active media or long molecular cha...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fully flexible multi-cavity valve valve bionic piezoelectric pump to overcome the shortcomings of traditional piezoelectric pumps with large pulsation and small flow rate.

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