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Piezoelectric pump and piezoelectric ceramics piece protection process

A technology of piezoelectric ceramic sheets and piezoelectric pumps, applied in piezoelectric/electrostrictive/magnetostrictive devices, pumps, circuits, etc., can solve problems such as low pressure and flow rate, easy burning, complex production process, etc.

Inactive Publication Date: 2012-10-17
深圳市华简智能科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of piezoelectric pumps, there are still many difficulties that need to be overcome, such as complex production processes, piezoelectric ceramics that stick to water and are easy to burn, low pressure and flow, etc.

Method used

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  • Piezoelectric pump and piezoelectric ceramics piece protection process
  • Piezoelectric pump and piezoelectric ceramics piece protection process

Examples

Experimental program
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Effect test

Embodiment Construction

[0008] The present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0009] figure 1 It is an embodiment of the medium piezoelectric pump of the present invention. It consists of an upper shell (1), a transducer plate (2), a valve plate (3), a sealing ring (4) and a lower shell (5). After assembling the aforementioned parts , the upper shell (1) and the lower shell (5) are connected by screws or ultrasonically welded together to form a complete piezoelectric pump. The sealing ring (4) is installed near or at the maximum circumference of the transducer sheet (2), which is equivalent to the fulcrum of the lever leaning toward the maximum circumference, which is beneficial to effectively utilize the maximum amplitude of the transducer sheet (2).

[0010] figure 2 It is an embodiment of the protection process of the piezoelectric ceramic sheet in the present invention: the surface of the solder joint (202)...

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PUM

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Abstract

The invention discloses a piezoelectric pump and a piezoelectric ceramics piece protection process. The piezoelectric pump is composed of parts such as an upper shell, a transduction piece, a valve plate, a seal ring and a lower shell, and a water inlet of the piezoelectric pump is arranged at a central position or close to the centre of the transduction piece; the seal ring is arranged at a maximal periphery approaching to the transduction piece, and a water outlet is positioned at the maximal periphery or close to the maximal periphery of the transduction piece; and a layer of thin insulation protection film is plated on the entire electric conduction surface of the transduction piece, leakage failure of the transduction piece and water burning of a ceramic surface are effectively prevented, the process is simple, and the cost is low.

Description

technical field [0001] The invention relates to a micropump, in particular to a piezoelectric pump using a piezoelectric ceramic sheet as an energy conversion device. Background technique [0002] Piezoelectric pumps have many patents, but few can be industrialized, and even fewer have good performance indicators in all aspects. In the field of piezoelectric pumps, there are still many difficulties that need to be overcome, such as complex production process, piezoelectric ceramic sheets are easy to burn due to sticky water, low pressure and flow rate, etc. [0003] Therefore, there is still much room for improvement in the field of piezoelectric pumps. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a piezoelectric pump with simple structure and process, increased flow rate, and safe and reliable piezoelectric ceramic sheet (transducer sheet). [0005] The technical scheme of the present invention is as follow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04H10N30/50
CPCH01L41/0973F04B17/003F04B43/046H10N30/883H10N30/2047
Inventor 曹孝平曹伟祥林淑媛
Owner 深圳市华简智能科技有限公司
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