Valveless piezoelectric pump of asymmetrical tree-shaped fractal flow pipe

Abstract

The invention provides a valveless piezoelectric pump of an asymmetrical tree-shaped fractal flow pipe. The valveless piezoelectric pump comprises a pump body consisting of a pump cover and a pump base, a piezoelectric vibrator, a water inlet pipe and a water outlet pipe; a water inlet, a water outlet and a sink hole are arranged on the pump cover, the water inlet pipe is connected with the water inlet, and the water outlet pipe is connected with the water outlet; the piezoelectric vibrator is fixed in the sink hole; a pump cavity, a taper flow pipe, a connecting pipe and a tree-shaped fractal flow pipe are arranged on the pump base, and the pump cavity is corresponding to the sink hole; one end of the taper flow pipe is connected with the pump cavity, and the other end is connected with the water inlet; one end of the connecting pipe is connected with the pump cavity, and the other end is connected with a main flow pipe of the tree-shaped fractal flow pipe; the tail end of a branch pipe of the tree-shaped fractal flow pipe is connected with an equal section circular flow pipe connected with the water outlet. Through the tree-shaped fractal flow pipe consisting of a quasi-fractal U-shaped fork flow pipe, the valveless piezoelectric pump eliminates the hot point of an electronic appliance well; through the asymmetrical layout of the tree-shaped fractal flow pipe and the taper flow pipe, the valveless piezoelectric pump is good for increasing the resistance difference of positive and reverse flows, and thereby the flow rate of the pump is increased.

Description

technical field [0001] The invention belongs to the field of valveless piezoelectric pumps, in particular to an asymmetric tree fractal flow tube valveless piezoelectric pump. Background technique [0002] According to the operating principle of the internal structure of the piezoelectric pump, it can be divided into a volumetric piezoelectric pump and a rotary piezoelectric pump. According to whether there is a movable part valve inside the piezoelectric pump, it can be divided into a piezoelectric pump with a valve and a piezoelectric pump without a valve. The typical valveless piezoelectric pump is the conical flow tube valveless piezoelectric pump. This kind of pump has no movable valve body, and uses an inverted expansion tube / contraction tube structure to control the flow direction of the fluid, so that the fluid flowing into the water inlet is more than the fluid flowing in the water outlet, and the fluid flowing out of the water inlet is less than the fluid flowing ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides an asymmetric tree-shaped fractal flow tube valveless piezoelectric pump that can be miniaturized, integrated, and has no electromagnetic interference, which overcomes the electromagnetic interference and current problems of the existing electromagnetic pump. Some valveless piezoelectric pump flow tubes are too small to eliminate hot spots and other shortcomings, so as to achieve good heat dissipation effect

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