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Fluid conveying device and piezoelectric pump

A technology for fluid delivery and piezoelectric pumps, which is applied to components, pumps, and pump elements of pumping devices for elastic fluids, which can solve the problems of reduced output capacity, reduce the circumferential size, and facilitate miniaturization Effect

Pending Publication Date: 2020-11-24
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

[0005] In order to solve the technical problem that the volume reduction of the fluid delivery device and the piezoelectric pump in the prior art will greatly reduce the output capacity, the present invention provides a fluid delivery device and the piezoelectric pump, which can further reduce the pressure while ensuring the output capacity. Volume of electric pump

Method used

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  • Fluid conveying device and piezoelectric pump
  • Fluid conveying device and piezoelectric pump
  • Fluid conveying device and piezoelectric pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as Figure 1-28 As shown, this embodiment provides a fluid delivery device, including an actuator 1 and a resonance plate 2, the actuator 1 and the resonance plate 2 are stacked, the resonance plate 2 is stacked on one side of the actuator 1, and The connecting portion 3 is connected to the vibrating plate 11 , the first end of the connecting portion 3 is connected to the resonance plate 2 , and the second end of the connecting portion 3 is connected to the vibrating plate 11 .

[0054] The actuator 1 includes a vibrating plate 11 and a piezoelectric element 12. The resonant plate 2, the vibrating plate 11 and the piezoelectric element 12 are sequentially stacked. The piezoelectric element 12 and the vibrating plate 11 are connected as one. The resonance plate 2 is connected to constrain the resonance plate 2 . A single piezoelectric element 12 may be provided, or multiple piezoelectric elements 12 may be located on one side of the vibrating plate 11 or on both si...

Embodiment 2

[0075] Such as Figure 29 As shown, the present embodiment is basically the same as the first embodiment, except that the structure of the actuator 1 is different. In this embodiment, the vibration plate 11 is concave in the middle, and the piezoelectric element 12 is accommodated in the concave portion of the vibration plate 11 and stacked between the resonance plate 2 and the vibration plate 11 . Preferably, the outer diameter of the piezoelectric element 12 is not larger than the outer diameter of the resonant plate 2 ; further preferably, the piezoelectric element 12 , the vibrating plate 11 and the resonant plate 2 are arranged coaxially. In addition, the connecting piece 32 of the connecting part 3 can also be stacked on the outer periphery of the side of the vibrating plate 11 close to the resonating plate 2, so that the outer periphery of the vibrating plate 11 is convex, and the connecting piece 32 and the piezoelectric element A recess 111 is formed between the radi...

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Abstract

The invention belongs to the technical field of fluid conveying equipment, and particularly relates to a fluid conveying device and a piezoelectric pump. The fluid conveying device comprises an actuator, a resonance plate and a connecting part, wherein the actuator comprises a vibration plate and at least one piezoelectric element disposed on the vibration plate, the resonance plate is stacked onone side of the actuator and connected to the vibration plate through the connecting part, the first end of the connecting part is connected to the resonance plate, and the second end of the connecting part is connected to the vibration plate. The piezoelectric pump comprises the fluid conveying device. The problem that the volume of a fluid conveying device and a piezoelectric pump is reduced inthe prior art and accordingly the output capability is greatly reduced is solved.

Description

technical field [0001] The invention belongs to the technical field of fluid conveying equipment, and in particular relates to a fluid conveying device and a piezoelectric pump. Background technique [0002] Microfluidic pumps have a wide range of application requirements in the fields of medicine and biology, fine chemicals, aerospace, and micro-electromechanical systems. Today's electronic products with application goals usually have a trend of miniaturization, which also requires microfluid pumps to be more miniaturized while ensuring their output capabilities (output pressure and output flow). [0003] In the prior art, under the premise of certain driving conditions, reducing the volume of the micropump will lead to a significant reduction in its output capacity (output pressure and output flow). For example, the patent document with the publication number CN102597520B discloses a fluid pump, and specifically discloses that there is a ring beam between the vibration pl...

Claims

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Application Information

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IPC IPC(8): F04B43/04F04B53/00
CPCF04B43/046F04B53/00
Inventor 不公告发明人
Owner 常州威图流体科技有限公司