Generating apparatus using piezoelectric ceramics

A technology of piezoelectric ceramics and power generation units, which is applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., to achieve the effect of low manufacturing cost

Inactive Publication Date: 2009-01-21
陈少宇 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above deficiencies, the technical problem to be solved in the present invention is how to avoid the use of rotating parts in the device using piez

Method used

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  • Generating apparatus using piezoelectric ceramics
  • Generating apparatus using piezoelectric ceramics
  • Generating apparatus using piezoelectric ceramics

Examples

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Embodiment Construction

[0013] 1. This embodiment is a device for generating electricity using piezoelectric ceramics that utilizes wind power, such as figure 1 , 3 As shown, the main rod part of the power generation element is a cylinder with a circular cross section, the upper and lower sections made of rubber are solid, and the middle section is embedded with a piezoelectric ceramic core. The wind wing 1 fixed to the column is installed in the upper section, and the installation section 3 is installed in the lower section to be installed on the base plate. There are 50 pieces of piezoelectric ceramics 5 obliquely stacked in the middle wrapped piezoelectric ceramic segment 2, and the two electrodes of each piece of piezoelectric ceramics are connected in parallel by wires 4 and then lead out from the bottom of the cylinder. The base plate is a flat plate that can be installed on the surface of a building or laid on the field. There are holes at the lower end of the mounting column and electrode wi...

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Abstract

The present invention provides a generating device which adopts piezoelectric ceramic for power generation. The device comprises a piezoelectric ceramic, an electrical energy converting and storing circuit which is connected with the piezoelectric ceramic, and a chip of power generating unit which consists of more than two pieces of piezoelectric ceramics which are piled together; the chip of power generating unit is coated by elastic material to form the power generating unit which is slim or flatly long; one end of the power generating unit is connected with the electrode of the pole of each piezoelectric ceramic, and the other end is provided with a force bearing device which is used for receiving the external acting force; the device also comprises a substrate; the power generating unit is installed on the substrate; the substrate is provided with an electrical energy converting and storing circuit which is used for connecting the electrode of each power generating unit; wherein, the power generating unit has bending or twisting deformation when being influenced by the external force, so that the extrusion between the piezoelectric ceramics can generate power. Therefore, the device has no rotating or moving mechanism, no potential of damage caused by abrasion and other motions, but low manufacturing cost.

Description

technical field [0001] The invention relates to a device for generating electricity using piezoelectric ceramics, which belongs to energy collection technology or electronic technology. Background technique [0002] Applying a mechanical force to some dielectrics causes the relative displacement of their internal positive and negative charge centers, resulting in polarization, which leads to the appearance of bound charges of opposite signs on the surfaces of the two ends of the medium. Within a certain stress range, the relationship between mechanical force and electric charge is linear and reversible. This phenomenon is called piezoelectric effect or positive piezoelectric effect. Ceramics with piezoelectric effect are called piezoelectric ceramics. The spontaneous polarization of ferroelectric ceramics without polarization treatment is randomly oriented, so there is no piezoelectricity. After polarization treatment, the spontaneous polarization is preferentially oriented...

Claims

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Application Information

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IPC IPC(8): H02N2/18
Inventor 陈少宇范明玥
Owner 陈少宇
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