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

A piezoelectric car alarm

An alarm, piezoelectric technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., can solve problems such as crushing, and achieve strong environmental adaptability and reliability. High performance, good power generation effect

Active Publication Date: 2019-03-12
北京湛华科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the piezoelectric wafer is a brittle material, it is easily broken due to excessive tensile stress.

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
  • A piezoelectric car alarm
  • A piezoelectric car alarm
  • A piezoelectric car alarm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The end of the side wall n of the housing is installed with a cover plate a1 with a through hole through the screw, and the through hole of the cover plate a1 is provided with a concave ring platform a2; the inner shell j is installed on the base l1 through the screw, and the inner shell j There are through holes and side columns j1 on the bottom j2 of the shell. The side columns j1 are evenly distributed on the circumference of the bottom j2. A group of piezoelectric vibrators k are installed on the side columns j1 through the pressure plate q and screws. The piezoelectric vibrators k are formed by the substrate k1 It is bonded with the piezoelectric sheet k2; the base l1 is provided with a concave circular platform l2, on which a rotating shaft e is pressed through the through hole of the bottom j2 of the inner shell j, and the other end of the rotating shaft e passes through the opening of the cover plate a1 Holes, in the cavity formed by the cover plate a1, the side ...

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 invention relates to a piezoelectric type vehicle-mounted alarm apparatus, and belongs to the technical field of automobile electronics. A cover plate is connected with the end part of the side wall a shell; an inwardly concave annular table is arranged in the position of a through hole of the cover plate; a bottom plate is connected with an inner shell; a through hole and a side column are arranged on the shell bottom; a group of piezoelectric vibrators are mounted on the side column through a pressing plate; each piezoelectric vibrator consists of a substrate and a piezoelectric sheet ina glued manner; an inwardly concave circular table is arranged on the base, and a rotary shaft is arranged thereon; in a cavity formed by the cover plate, the side wall of the shell and the bottom plate, the rotary shaft is provided with a bearing, a clamping spring, an execrations wheel, a flat key, a clamping spring and a bearing in sequence, wherein an outer ring props against the inwardly concave circular table and the outer edge of the through hole in the shell bottom in the right bearing; the outer ring props against the inwardly concave annular table and the inner edge of the pressingring in the left bearing; the excitation wheel is provided with a short rigid block; the short rigid block is connected with a flexible shifting sheet and a long rigid block; a sleeve is mounted on the cover plate; a pulling band and a power spring are arranged on the inner shaft section of the sleeve while the other ends of the pulling band and the power spring are connected with the clamping block and the sleeve respectively; and a circuit board with an energy conversion circuit and an alarming system is arranged on the shell bottom.

Description

technical field [0001] The invention belongs to the technical field of automobile electronics, and in particular relates to a piezoelectric vehicle-mounted alarm device, which supplies power for a vehicle-mounted alarm system. Background technique [0002] A bus is a commercial vehicle specially designed and equipped to solve urban and suburban transportation. This vehicle is equipped with passenger seats and passages for passengers to stand and walk. It requires a large standing area and is a densely populated place. Incidents happen from time to time. In addition, passengers may experience sudden physical discomfort. At this time, the driver or flight attendant should be informed as soon as possible to prevent the incident from worsening. In order to solve the above problems, a vehicle alarm can be installed in the vehicle. If the alarm is powered by a car generator, it needs to be rewired from the inside of the car, and a voltage regulator needs to be connected. The inst...

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): H02N2/18
Inventor 吴鸣陈日成阚君武
Owner 北京湛华科技有限公司
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