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Piezoelectric actuator

A piezoelectric actuator, piezoelectric ceramic technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc. problems, such as noise, etc.

Inactive Publication Date: 2017-08-08
MICROJET TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The main purpose of this case is to provide a micro-fluid control device suitable for portable or wearable instruments or equipment and the piezoelectric actuator used in it, and the fluid generated by the high-frequency action of the piezoelectric actuator Fluctuation, a pressure gradient is generated in the designed flow channel, so that the fluid flows at a high speed, and through the impedance difference in the direction of the flow channel, the fluid is transmitted from the suction end to the discharge end, so as to solve the problem of using pneumatic power in the known technology Instruments or equipment are bulky, difficult to thin, unable to achieve the purpose of portability, and lack of noise

Method used

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Embodiment Construction

[0024] Some typical embodiments embodying the features and advantages of the present application will be described in detail in the description in the following paragraphs. It should be understood that this case can have various changes in different aspects, all of which do not depart from the scope of this case, and the descriptions and diagrams therein are used as illustrations in nature, rather than construed to limit this case.

[0025] The micro-pneumatic power device 1 of this case can be applied to industries such as medical biotechnology, energy, computer technology or printing, so as to transmit gas, but not limited thereto. see Figure 1A , Figure 1B , Figure 2A , Figure 2B and Figures 7A to 7E picture, Figure 1A It is a schematic diagram of the front exploded structure of the micro-pneumatic power device of the preferred embodiment of the case, Figure 1B for Figure 1A The schematic diagram of the front combination structure of the micro pneumatic power de...

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Abstract

A piezoelectric actuator comprises a suspension plate, a piezoelectric ceramic plate, an outer frame and a support, wherein the suspension plate is of a square structure and can conduct bending vibration from a center part to a peripheral part; the piezoelectric ceramic plate is of a square structure and is attached to a first surface of the suspension plate so as to apply voltage for driving the suspension plate to conduct bending vibration; the outer frame is arranged on the outer side of the suspension plate in a surrounding mode; the support is connected between the suspension plate and the outer frame so as to provide elastic support; the support comprises a beam part, a suspension plate connecting part and an outer frame connecting part; the beam part is arranged in a gap between the suspension plate and the outer frame and is arranged in the direction parallel to the outer frame and the suspension plate; the suspension plate connecting part is connected between the beam part and the suspension plate; the outer frame connecting part is connected between the beam part and outer frame and corresponds to the suspension plate connecting part; and the outer frame connecting part and the suspension plate connecting part are arranged on the same axis.

Description

[0001] 【Technical field】 [0002] This case is about a piezoelectric actuator, especially a piezoelectric actuator suitable for micro-ultra-thin and silent micro-fluid control devices. [0003] 【Background technique】 [0004] At present, in various fields, whether it is medicine, computer technology, printing, energy and other industries, products are developing towards refinement and miniaturization. Among them, the fluid delivery structures included in products such as micropumps, sprayers, inkjet heads, and industrial printing devices As its key technology, how to break through its technical bottleneck through innovative structure is an important content of development. [0005] For example, in the pharmaceutical industry, many instruments or equipment that need to be driven by pneumatic power usually use traditional motors and pneumatic valves to achieve the purpose of gas delivery. However, limited by the structure of these traditional motors and gas valves, it is difficu...

Claims

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Application Information

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IPC IPC(8): F04B45/047F04B39/10H02N2/02
CPCH02N2/02F04B39/10F04B39/102F04B39/1046F04B43/046F04B45/047
Inventor 陈世昌黄启峰韩永隆廖家淯陈寿宏黄哲威廖鸿信陈朝治程政玮张英伦张嘉豪李伟铭
Owner MICROJET TECH