Side suction pipe valveless piezoelectric pump

A valveless piezoelectric pump and suction pipe technology, which can be used in pumps, pumps with flexible working elements, liquid variable capacity machines, etc., and can solve problems such as reverse flow

Inactive Publication Date: 2016-05-25
BEIJING UNION UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing valveless piezoelectric pump structure has a reverse flow phenomenon during work.

Method used

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  • Side suction pipe valveless piezoelectric pump
  • Side suction pipe valveless piezoelectric pump
  • Side suction pipe valveless piezoelectric pump

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Experimental program
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Effect test

Embodiment Construction

[0016] The embodiment of the present invention is as figure 1 - Figure 5 shown

[0017] Two identical piezoelectric vibrators 2 are installed face to face on the upper and lower sides of the pump body 1 with the same polarity side of the piezoelectric ceramics. The structure of the pump body 1 is as follows: figure 2 , image 3 , Figure 4 with Figure 5 As shown, there are counterbores 6 on the upper and lower end surfaces 12 of the pump body 1, and the piezoelectric vibrator 2 is installed in the counterbore 6, and the two piezoelectric vibrators 2 and the space in the pump body 1 form a pump chamber 13, and the pump chamber 13 is A cylindrical shape, the pump chamber 13 has a support plate 4 on the middle surface symmetrical to the upper and lower piezoelectric vibrators 2, and there is a step 7 between the support plate 4 and the bottom surface of the counterbore 6, so that the thickness of the support plate 4 is smaller than that of the pump chamber 13 The height o...

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PUM

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Abstract

The invention discloses a side suction pipe valveless piezoelectric pump and belongs to the field of liquid machines. The side suction pipe valveless piezoelectric pump is characterized by comprising two identical piezoelectric vibrators which are arranged on the upper side and the lower side of a pump body in a face-to-face mode, the upper end face and the lower end face of the pump body are provided with counter bored holes, the piezoelectric vibrators are installed inside the counter bored holes, a supporting plate is arranged on the middle face, symmetric about the upper and lower piezoelectric vibrators, of a pump cavity, a step is arranged between the supporting plate and the bottom faces of the counter bored holes, the thickness of the supporting plate is smaller than the height of the pump cavity, a main outer side pipe and a main inner side pipe are machined in the middle perpendicular to the end face of the supporting plate, the diameter of the main outer side pipe is larger than that of the main inner side pipe, a circular branch pipe is machined inside the supporting plate on the axis perpendicular to the main outer side pipe and main inner side pipe, the diameter of the branch pipe is not larger than that of the main outer side pipe, the branch pipe is tangent with the joint face of the main outer side pipe and the main inner side pipe, a boss is arranged on the outer side of the pump body so that the branch pipe and the outer pipe can be connected, and the side face of the pump body is provided with a deflation hole and a closed bolt. The side suction pipe valveless piezoelectric pump is applied to the occasion that reverse flow is not allowed to exist in a liquid source.

Description

technical field [0001] The invention relates to a valveless piezoelectric liquid mixing pump, which belongs to the field of liquid machinery. Background technique [0002] The valveless piezoelectric pump has simple structure, high electromechanical energy conversion efficiency and high reliability, and has broad application prospects in the fields of medical care, aerospace, micro-electromechanical and other fields in the future. However, the existing valveless piezoelectric pump structure has a phenomenon of reverse flow during operation. The structure proposed in the present invention can keep the liquid in the branch pipe in the state of pulsating one-way flow into the pump body at all times during the operation of the valveless piezoelectric pump, so that it can be used in occasions where the liquid source does not allow reverse flow, and at the same time The pump also improves efficiency. Contents of the invention [0003] The purpose of the present invention is to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04
CPCF04B43/046
Inventor 夏齐霄卢振洋季红益
Owner BEIJING UNION UNIVERSITY
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