Cantilever type self-generating device and manufacturing method thereof

A self-generating, cantilever-type technology, applied in the direction of generators/motors, electrical components, piezoelectric effects/electrostrictive or magnetostrictive motors, etc.

Active Publication Date: 2021-08-20
SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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Problems solved by technology

[0004] The purpose of the present invention is to provide a cantilever type self-generating device and its manufacturing method, including but not limited to solving the technical problem that a large-area lead zirconate titanate piezoelectric ceramic sheet needs to be assembled in a high-power piezoelectric generating device

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  • Cantilever type self-generating device and manufacturing method thereof
  • Cantilever type self-generating device and manufacturing method thereof
  • Cantilever type self-generating device and manufacturing method thereof

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Embodiment Construction

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] It should be noted that when a component is referred to as being “fixed on” or “disposed on” another component, it may be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are for convenience of description only, rathe...

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Abstract

The invention provides a cantilever self-generating device, which includes a base for connecting with external devices, an elastic substrate and a plurality of piezoelectric sheets, one end of the elastic substrate is fixed on the base, and the other end of the elastic substrate is a free end , the area of ​​the piezoelectric sheet is smaller than the area of ​​the elastic substrate, and the elastic substrate has a strained part where the stress is concentrated, and a plurality of piezoelectric sheets are fixed on the strained part and arranged at intervals along the axis of the strained part; in addition, the present invention also provides a A method for manufacturing a cantilever type self-generating device. In the present invention, a plurality of piezoelectric sheets with smaller areas are fixed on the strained part of the elastic substrate, and the vibration energy of the elastic substrate is converted into electric energy through the piezoelectric effect of the plurality of piezoelectric sheets, so as to meet the requirements of larger power generation. Power generation needs, thus solving the technical problem that large-area lead zirconate titanate piezoelectric ceramic sheets need to be assembled for high-power piezoelectric power generation devices, reducing the design difficulty of cantilever self-generating devices, and expanding the scope of application of cantilever self-generating devices.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric generating devices, and more specifically relates to a cantilever type self-generating device and a manufacturing method thereof. Background technique [0002] The piezoelectric power generation device is a device that uses the piezoelectric effect of piezoelectric materials to generate electricity. The piezoelectric effect means that when some dielectrics (piezoelectric materials) are deformed by external forces in a certain direction, there will be internal Polarization phenomenon, in which positive and negative opposite charges appear on its two opposite surfaces at the same time. [0003] At present, lead zirconate titanate piezoelectric ceramic (PZT) has become one of the main piezoelectric materials for converting mechanical vibration energy into electrical energy in various environments. However, due to the high brittleness of the lead zirconate titanate piezoelectric ceramic sheet i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18
CPCH02N2/18H02N2/186H02N2/22
Inventor 孙亚飞高西成
Owner SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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