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Piezoelectric micropump and gas control device

A technology for control devices and micropumps, applied in pump control, pumps, pump components, etc., can solve the problems of low energy conversion efficiency of the output flow of piezoelectric micropumps, achieve the effects of small stiffness, increase output flow, and increase gas volume

Pending Publication Date: 2020-05-12
常州威图流体科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem in the prior art that it is difficult to increase the output flow and output pressure of the piezoelectric micropump at the same time, that is, the energy conversion efficiency is low, the present invention proposes a piezoelectric micropump and a gas control device, which effectively solve the above technical problems

Method used

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  • Piezoelectric micropump and gas control device
  • Piezoelectric micropump and gas control device
  • Piezoelectric micropump and gas control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-9 As shown, this embodiment discloses a piezoelectric micropump, including a resonator 1 and a piezoelectric vibrator 2, the resonator 1 and the piezoelectric vibrator 2 are stacked, and the resonator 1 vibrates under the drive of the piezoelectric vibrator 2 to realize Air in and out.

[0041] The resonator 1 is plate-shaped as a whole, and the resonator 1 is sequentially divided into a plate part 11, a connecting part 12 and a resonance part 13 from outside to inside. In this embodiment, the outer contour of the plate part 11 is a square. It can be set to other shapes such as circles and rectangles. The connecting part 12 is annular, the outer end of the connecting part 12 is connected with the plate part 11, the inner end of the connecting part 12 is connected with the resonant part 13, and the connecting part 12 is distributed with air outlet holes 121, and the air outlet holes 121 can be set as many one, uniformly distributed on the connecting p...

Embodiment 2

[0056] Such as Figure 10 As shown, the present embodiment is basically the same as the first embodiment, the only difference is that the structure of the leakage valve 6 is different. The leakage valve 6 in this embodiment includes a valve casing 61, and a diaphragm structure 62 is arranged inside the valve casing 61. The diaphragm structure 62 divides the inner cavity of the valve casing 61 into an air inlet side and an air outlet side, and the valve casing on the inlet side There are two air inlets 611 on the 62, an air storage port 613 and an air outlet 612 are opened on the valve casing 62 on the air outlet side, and one air inlet 611 is aligned with the air outlet 612 so that the diaphragm structure 62 can be covered under the action of air pressure. Close the air outlet 612, the diaphragm structure 62 corresponding to the other air inlet 611 is provided with an air flow channel 623, and the air flow channel 623 is provided with a cantilever beam valve plate 63, and the ...

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Abstract

The invention relates to the field of fluid control, in particular to a piezoelectric micropump and a gas control device. The piezoelectric micropump comprises a resonance piece and a piezoelectric vibrator, wherein the resonance piece is composed of a plate part, a connection part and a resonance part from exterior to interior in sequence, one surface of the resonance piece is a plane, a sunken structure is formed in the middle of the other surface of the resonance piece, air outlets are distributed in the connection part; and the piezoelectric vibrator and the resonance piece are arranged ina stacked mode, the piezoelectric vibrator is close to the plane of the resonance piece, and air inlets are formed in the piezoelectric vibrator and right face the sunken structure of the resonance part. The technical problem that in the prior art, the output flow and output pressure of a piezoelectric micropump are quite difficult to improve at the same time, that is, the energy conversion efficiency is low is solved.

Description

technical field [0001] The invention relates to the field of fluid control, in particular to a piezoelectric micropump and a gas control device. Background technique [0002] With the development of portable and wearable electronic devices, the size of electronic devices has shrunk a lot, especially the thinner thickness, which requires smaller basic components. Piezoelectric micropumps are more and more widely used in electronic equipment, and miniaturization puts forward higher requirements for piezoelectric micropumps, such as low voltage, miniaturization and high output performance. However, if the piezoelectric micropump in the prior art needs to realize miniaturization and low voltage, the output capability (output pressure and output flow) of the piezoelectric pump will be reduced. For piezoelectric micropumps driven by constant power, the larger the output flow, the smaller the output pressure, and vice versa. Therefore, under the premise of low power and miniaturi...

Claims

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Application Information

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IPC IPC(8): F04B45/047F04B39/00F04B39/10F04B49/22
CPCF04B39/00F04B39/0027F04B39/0088F04B39/10F04B45/047F04B49/22F04B49/225
Inventor 不公告发明人
Owner 常州威图流体科技有限公司