Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cascade and parallel piezoelectric composite material and preparing method thereof

A piezoelectric composite material and parallel technology, which is applied in the manufacture/assembly of piezoelectric/electrostrictive devices, and the selection of device materials, etc., can solve the problem that the mechanical flexibility of two-phase materials is greatly different, the electrode preparation is not easy to flatten, and the mechanical vibration Impact and other issues, to achieve the effect of simplifying the electrode manufacturing process, low density, and improving the ability of heat resistance and mechanical shock

Inactive Publication Date: 2008-07-09
BEIJING INFORMATION TECH INST
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the piezoelectric crystals of series or parallel piezoelectric composite materials are separated in the horizontal or vertical direction, and they are only bonded together with epoxy resin, which is easily affected by pressure, mechanical vibration shock and environmental temperature changes, and in series Or on the electrode surface of the parallel piezoelectric composite material, the mechanical flexibility of the two-phase materials is quite different, and the electrode preparation is not easy to be flat and easy to break

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cascade and parallel piezoelectric composite material and preparing method thereof
  • Cascade and parallel piezoelectric composite material and preparing method thereof
  • Cascade and parallel piezoelectric composite material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] refer to image 3 , Type 1-3 and Type 2-2 are piezoelectric composite materials with parallel structure, the piezoelectric crystal skeleton 1 of Type 2-2 piezoelectric composite material is a parallel array of several piezoelectric crystal sheets, and Type 1-3 piezoelectric composite The piezoelectric crystal skeleton 1 of the material is a parallel array of several piezoelectric crystal pillars, which form alternate strips with epoxy resin 2 and are parallel to the polarization direction. refer to Figure 4 , the series-parallel piezoelectric composite material of the present invention includes: a kind of -1-3 type piezoelectric composite material 6 in the parallel piezoelectric composite material, a piezoelectric crystal substrate 5 and metal electrodes 3, 4, and the piezoelectric crystal substrate 5 is a piezoelectric composite material. Electric ceramics, 1-3 type piezoelectric composite material 6 is composed of piezoelectric ceramics and epoxy resin, 1-3 type pie...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The complex piezoelectric material is composed of the parallel-connected complex material, the piezoelectric crystal base plate, the upper and lower electrodes. The parallel connection piezoelectric material is composed of the piezoelectric crystal skeleton and the epoxy resin, the parallel-connected piezoelectric complex material is fixed on the piezoelectric crystal base plate. The parallel-connected piezoelectric complex materials is connected with the crystal base plate. The series-parallel connection combination is supported by the ceramics skeleton with the property of parallel connected and series connected piezoelectric complex material.

Description

technical field [0001] The invention belongs to the technical field of functional materials and their preparation, and in particular relates to a series-parallel piezoelectric composite material for underwater acoustic, ultrasonic and medical transducers and a preparation method thereof. Background technique [0002] Piezoelectric composite materials are materials with piezoelectric effect, which can realize mutual conversion between mechanical energy and electrical energy. Piezoelectric composite materials refer to materials composed of piezoelectric crystals and polymers according to a certain connection mode, a certain volume and weight ratio, and a certain spatial geometric distribution. It not only has the strong piezoelectric properties of piezoelectric crystals, but also has the characteristics of polymer flexibility, low impedance, and easy matching with air and water. It is a new type of material with the advantages of two-phase materials. [0003] Piezoelectric co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/16H01L41/22H01L41/37
Inventor 李光王丽坤栾桂冬张金铎张福学唐劲松岳军
Owner BEIJING INFORMATION TECH INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com