CN203480609U

CN203480609U - Manual piezoelectric ceramic type doorbell

Info

Publication number: CN203480609U
Application number: CN201320250235.7U
Authority: CN
Inventors: 沙成; 李岳; 杨超
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2013-05-06
Filing date: 2013-05-06
Publication date: 2014-03-12
Anticipated expiration: 2023-05-06

Abstract

The utility model discloses a piezoelectric ceramic type doorbell. The doorbell mainly comprises a piezoelectric ceramic power generation module (1), a rectifier module (2), a filter module (3), an amplifying circuit module (4), a voltage stabilizing circuit module (5), a music module (6), and a loudspeaker (7). A button on the piezoelectric ceramic power generation module (1) is forcibly pressed, electric charge is generated by the piezoelectric material under the action of external force and passes through a series of rectification, filter, amplification and voltage stabilization process circuits to drive the music module (ICI) and the loudspeaker, and make them normally work. The doorbell is characterized in that: the external power supply is not needed, and compared with the traditional electronic doorbell, a dry battery or a button lithium battery is not needed, the doorbell has a certain economic benefit, the energy source is saved and the pollution of battery on environment is reduced, so as to indeed achieve the purpose of energy-saving, emission-reduction and low-carbon life. Compared with the knock vibration type electronic doorbell, the misjudgment caused by ringing of the doorbell when the door is opened or closed by user is ruled out.

Description

Manual piezoelectric ceramic type doorbell

Technical field

The utility model relates to a kind of novel electron doorbell, utilizes piezoelectric ceramics generating as the power supply of electron device, does not need additional power source.

Background technology

Piezoelectric energy collecting device is as a kind of novel miniature power generating device, have simple in structure, thermal value is little, without electromagnetic interference (EMI).Be easy to miniaturization on processing and fabricating and implementation structure, integrated etc., be particularly useful for all kinds of sensings and detection system.By the button of pressing on piezoelectric ceramic device, produce electric charge, after a series of processing of circuit, for music door-bell module provides power supply, do not need additional power source.

Summary of the invention

Manual piezoelectric ceramic type doorbell, comprise piezoelectric ceramics electricity generation module (1), rectification module (2), filtration module (3), amplifying circuit module (4), voltage stabilizing circuit module (5), music module (6), (7) seven parts of loudspeaker, it is characterized in that: 4 piezoelectric ceramic piece stress deformation generation of vibration electric charges of piezoelectric ceramics Blast Furnace Top Gas Recovery Turbine Unit (TRT) inside, the electric charge producing in piezoelectric ceramics electricity generation module (1) passes through rectification module (2) rectification successively, filtration module (3) filtering, amplifying circuit module (4) is boosted, after voltage stabilizing circuit module (5) voltage stabilizing, formed electric charge treatment circuit, voltage stabilizing circuit module (5) connects music module (6), and music module (6) connects loudspeaker and forms manual piezoelectric ceramic type doorbell circuit.

Accompanying drawing explanation

Fig. 1 is the schematic block circuit diagram of manual piezoelectric ceramic type doorbell;

Fig. 2 is the circuit diagram of manual piezoelectric ceramic type doorbell;

Fig. 3 is the inner structure sketch of piezoelectric ceramics Blast Furnace Top Gas Recovery Turbine Unit (TRT);

Embodiment

Below the present invention is described in detail with reference to the accompanying drawings.

Fig. 1 is the schematic block circuit diagram of manual piezoelectric ceramic type doorbell, comprises piezoelectric ceramics electricity generation module (1), rectification module (2), filtration module (3), amplifying circuit module (4), voltage stabilizing circuit module (5), music module (6), loudspeaker (7).When piezoelectric ceramics Blast Furnace Top Gas Recovery Turbine Unit (TRT) is subject to pressing, can produce electric charge, these electric charges provide required power supply to music module after overcommutation, filtering, amplification, voltage stabilizing, and loudspeaker will be worked.

Fig. 2 is the circuit diagram of manual piezoelectric ceramic type doorbell, and 1 is piezoelectric ceramics encapsulation figure, and there is the piezoelectric ceramic piece of 4 PZT materials inside, the thickness h=2mm of every, area A=4cm ², F=20N, takes the piezoelectric stack model mode of electrode parallel connection to link together, and the place that on surface, that annulus is finger presses adopts electro-insulating rubber material to make, very comfortable by getting up.Whole with insulating material encapsulation, draw the copper sheet of two wiring.2 is bridge rectifier circuit.3 is capacitor filter.4 is in-phase amplification circuit, and filtered low-voltage is elevated to 5V left and right.5 is mu balanced circuit, by the voltage voltage stabilizing after amplifying at 3.3V or 5V.6,7 is music module and loudspeaker, and IC1 is the most frequently used integrated music chip, can change traditional doorbell and only send the single sound of stining pan.

Fig. 3 is the inner structure sketch of piezoelectric ceramics Blast Furnace Top Gas Recovery Turbine Unit (TRT), adopt freely-supported support pattern, which is that flexural piezoelectric element is supported on the node of vibration, two base for supporting (a, b), the structure supporting is light, solid, and the loss of device has also been reduced to minimum.

The above, be case study on implementation of the present utility model, all should be encompassed in protection domain of the present utility model.

Claims

1. manual piezoelectric ceramic type doorbell, comprise piezoelectric ceramics electricity generation module (1), rectification module (2), filtration module (3), amplifying circuit module (4), voltage stabilizing circuit module (5), music module (6), (7) seven parts of loudspeaker, it is characterized in that: 4 piezoelectric ceramic piece stress deformation generation of vibration electric charges of piezoelectric ceramics Blast Furnace Top Gas Recovery Turbine Unit (TRT) inside, the electric charge producing in piezoelectric ceramics electricity generation module (1) passes through rectification module (2) rectification successively, filtration module (3) filtering, amplifying circuit module (4) is boosted, voltage stabilizing circuit module (5) voltage stabilizing has formed electric charge treatment circuit, voltage stabilizing circuit module (5) connects music module (6), and music module (6) connects loudspeaker and forms manual piezoelectric ceramic type doorbell circuit.