Cost-effective high-bending-stiffness connector and piezoelectric actuator made of such

A piezoelectric actuator and connector technology, applied in piezoelectric/electrostrictive transducers, piezoelectric devices/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, etc. Unfavorable influence of actuator displacement and resistance, large bending flexibility, etc.

Inactive Publication Date: 2020-04-10
MICROFINE MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to their large bending compliance, both displac

Method used

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  • Cost-effective high-bending-stiffness connector and piezoelectric actuator made of such
  • Cost-effective high-bending-stiffness connector and piezoelectric actuator made of such
  • Cost-effective high-bending-stiffness connector and piezoelectric actuator made of such

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Embodiment Construction

[0042] definition

[0043] In this specification, reference to "one embodiment / aspect" or "embodiment / aspect" means that at least one embodiment / aspect of the present invention includes a specific feature, structure or characteristic described in conjunction with the embodiment / aspect . The phrases “in one embodiment / aspect” or “in another embodiment / aspect” used in various places in the specification do not necessarily all refer to the same embodiment / aspect, nor do they necessarily refer to other embodiments / aspects. Exclusive or alternative embodiments / aspects. Furthermore, various features that may be exhibited by some embodiments / aspects but not by others are described. Similarly, various requirements are described, and these requirements may be requirements of some embodiments / aspects rather than requirements of other embodiments / aspects. In some cases, embodiments and aspects can be used interchangeably.

[0044] In the context of the present disclosure, and in the spec...

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PUM

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Abstract

Cost effective connectors of high bending stiffness for making high-performance piezoelectric actuators and derivative devices are disclosed. In one embodiment, the connector has circumferentta!ly alternating recesses of circular cross-section which can be cost-effectively machined out with conventional machining techniques. The circular recesses can be adopted to house circular or non-circular cross-sectioned piezoelectric active elements to make cost effective 2-level (2x) piezoelectric displacement actuators. In another embodiment, the non-circular cross-sectioned recesses in the connectorinclude suitable wall openings to enable said recesses to be machined out cost effectively via conventional machining techniques, or via reduced use of non-conventional machining techniques. Additional stiffening mechanisms can be added to minimize the bending displacement of the base of recesses when desired. Cost effective derivative devices, such as high-performance multi-level displacement actuators and compact Langevin low-frequency underwater projectors, can be made from such connectors.

Description

Technical field [0001] The present invention relates to a displacement connector with high bending rigidity, and particularly to a high-performance piezoelectric actuator that is inexpensively manufactured. Background technique [0002] Piezoelectricity is the charge accumulated in certain solid materials in response to external mechanical stress. The piezoelectric effect is a reversible process, because the material behaves as a direct piezoelectric effect and also as a reverse piezoelectric effect. That is, the piezoelectric element can generate internal mechanical strain from the applied electric field. [0003] Therefore, the piezoelectric element can be used as a driving source for generating mechanical displacement. However, since the amount of deformation of the piezoelectric element is generally small, it is often necessary to amplify the mechanical strain of the piezoelectric element and convert it into a large amount of displacement when used as a driving source. Recen...

Claims

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Application Information

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IPC IPC(8): H04R17/00H01L41/053
CPCH02N2/02H10N30/505H10N30/88H10N30/875H10N30/20H10N30/852B06B1/0633H10N30/206H10N30/8548H10N30/8554
Inventor 林良洲黄雨夏跃学林殿桦
Owner MICROFINE MATERIALS TECH
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