Piezoelectric ceramic piece energy harvesting device based on water medium pressure pulsation

A piezoelectric ceramic sheet and pressure pulsation technology, which is applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., to achieve improved reliability, low cost, and no pollution Effect

Pending Publication Date: 2021-03-09
QINGDAO UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, water hydraulics require low power consumption components such as pressure sensors

Method used

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  • Piezoelectric ceramic piece energy harvesting device based on water medium pressure pulsation
  • Piezoelectric ceramic piece energy harvesting device based on water medium pressure pulsation
  • Piezoelectric ceramic piece energy harvesting device based on water medium pressure pulsation

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Embodiment Construction

[0023] A piezoelectric ceramic sheet piezoelectric energy harvesting device based on water medium pressure pulsation, comprising an upper cover 1, a housing 2, a middle lining 3 arranged inside the casing, an upper lining 4 arranged outside the middle lining 3, and The piezoelectric sheet 5 under the middle lining 3 and the upper lining 4, the lower lining 6 arranged on the lower side of the piezoelectric sheet 5, the O-ring 7 arranged inside the lower inner lining, and the O-ring arranged in the outer shell 2 Circle 8.

[0024] The upper cover 1 is a cylindrical object with a thick upper part and a thinner lower part. The outer peripheral surface has an external thread 1.1, and its central part is a vertical through hole 1.2. Its lower bottom surface 1.3 is in clearance fit with the upper surface 3.1 of the middle inner lining 3 and the upper surface 4.1 of the upper inner lining 4 .

[0025] The upper part of the inner peripheral surface 2.1 of the housing 2 has an internal...

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Abstract

The invention discloses a piezoelectric ceramic piece energy harvesting device based on water medium pressure pulsation. The piezoelectric ceramic piece energy harvesting device comprises an upper cover, a shell, a middle lining arranged in the shell, an upper lining arranged on the outer side of the middle lining, a piezoelectric piece arranged on the lower side of the middle lining and a lower lining arranged on the lower side of the piezoelectric piece. The lower end of the shell is a cylinder with a through hole, the upper cover is in threaded connection with the shell, the middle of the lower lining is a circular through hole, the middle lining is in clearance fit with the upper lining at the joint surface, and a cavity is reserved at the lower part. A vibration cavity is reserved between the middle lining and the lower lining, a hole is formed in one side face of the middle lining, and the hole is communicated with a vertical through hole in the middle lining. The piezoelectric ceramic is arranged between the middle lining and the lower lining, and the two wires can be connected to the outside of the device through the middle lining side face through holes and the vertical through holes respectively. Harmful pressure pulsation is recycled into electric energy, waste is turned into wealth, and the device can be used for energy supply and driving of low-power-consumption elements.

Description

technical field [0001] The invention relates to a piezoelectric ceramic chip energy harvesting device based on water medium pressure pulsation, belonging to the field of piezoelectric energy harvesting. Background technique [0002] In the water hydraulic circulation system, there are flow pulsations in the water medium, and these flow pulsations will generate pressure pulsations when they meet the load, and the pressure pulsations will generate vibration and noise. Water hydraulics, on the other hand, require low electrical power consumption components such as pressure sensors. It has important practical significance if the pressure pulsation output by the water hydraulic circulation system can be captured and converted into electrical energy storage for use by low-power consumption components. [0003] In recent years, with the development of new energy sources and the improvement of energy-saving requirements, flow-induced vibration has gradually become an important ener...

Claims

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Application Information

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IPC IPC(8): H02N2/18
CPCH02N2/185H02N2/186
Inventor 史伟杰张添杨传辉
Owner QINGDAO UNIV OF SCI & TECH
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