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Integrated type high-flow piezoelectric pump

A piezoelectric pump and high-flow technology, which is applied to variable-capacity pump components, pumps, components of pumping devices for elastic fluids, etc., can solve problems such as difficulty in outputting a large flow rate, and achieve increased output flow, The effect of increasing the amplitude and reducing the volume

Inactive Publication Date: 2016-09-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an integrated large-flow piezoelectric pump to solve the problem that the existing piezoelectric micro-pumps are difficult to output a large flow

Method used

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  • Integrated type high-flow piezoelectric pump

Examples

Experimental program
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Embodiment Construction

[0021] refer to figure 1 , figure 2 , image 3 , Figure 4 as well as Figure 5 Shown:

[0022] An integrated large-flow piezoelectric pump provided by the present invention includes No. 1 pump body (1), No. 2 pump body (2), No. 3 pump body (3) and No. 4 pump body (4). Select PMMA, each pump body contains two parallel small piezoelectric micropumps, a common inlet (5), a common outlet (6), and the common inlet (5) and common outlet (6) of each pump body are connected , the bottom of each pump body comprises two parallel inlet channels (13) and two parallel outlet channels (14), the inlet channels (13) communicate with the common inlet (5), and the outlet channels (14) Connect with public exit (6).

[0023] The small piezoelectric micropump of each layer includes a piezoelectric vibrator (7), a valve cover (8), a wheel valve (9), a sealing ring (10), a pump chamber inlet (11), a pump chamber outlet (12), a pump Cavity (15), the upper material of the piezoelectric vibrat...

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PUM

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Abstract

The invention discloses an integrated type high-flow piezoelectric pump. The integrated type high-flow piezoelectric pump is formed by four layers of pump bodies in a pressing way, wherein the pump body in each layer comprises two piezoelectric micro-pumps which are connected in parallel, a public inlet and a public outlet; a pump body I, a pump body II and a pump body III are completely same in structure; the public inlet and the public outlet of a pump body IV do not completely penetrate through the pump body IV; other structures of the pump body IV are same as the pump body I; a valve plate, a parabola pump cavity, a piezoelectric vibrator and the like are arranged at the top part of the pump body I, an inlet flow passage and an outlet flow passage are formed in the bottom part of the pump body I; the piezoelectric vibrator is fixedly arranged on the pump body I in a simple-support way; the bottom part of the pump body I is connected with the bottom part of the pump body II in the pressing way, the top part of the pump body II is connected with the top part of the pump body III in the pressing way, and the bottom part of the pump body III is connected with the bottom part of the pump body IV, so that the whole integrated type high-flow piezoelectric pump is further formed. The integrated type high-flow piezoelectric pump has the advantages of high integration, small volume and large output flow.

Description

technical field [0001] The invention belongs to the field of fluid drive and relates to a novel piezoelectric fluid drive. Background technique [0002] Piezoelectric micropumps based on the piezoelectric effect have the advantages of simple structure, small size, high pressure, high lift, good reliability, and easy control, and are widely used in the fields of medicine, micro-precision machinery, and micro-electromechanical systems. [0003] The piezoelectric pump is composed of a piezoelectric vibrator, a valve plate and a pump body. When working, apply alternating current to both ends of the piezoelectric vibrator, and the piezoelectric vibrator will bend and deform due to the positive piezoelectric effect. When the piezoelectric vibrator bends forward, the piezoelectric vibrator will elongate, the volume of the pump cavity will increase, and the pressure in the cavity will decrease. , the inlet valve is opened, the outlet valve is closed, and the fluid enters the pump c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04F04B53/00F04B23/04
CPCF04B43/046F04B23/04F04B43/0009F04B43/0054
Inventor 刘国君张炎炎赵心李新波刘建芳杨志刚吴越姜峰唐春秀王腾飞梁实海
Owner JILIN UNIV
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