CN2144895Y

CN2144895Y - Electronic adjuster with voltage regulating and timing function

Info

Publication number: CN2144895Y
Application number: CN 93203423
Authority: CN
Inventors: 孙海波
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-13
Filing date: 1993-02-13
Publication date: 1993-10-27
Anticipated expiration: 2003-02-13

Abstract

The utility model provides an electronic regulator with voltage regulating and timing functions. The electronic regulator with voltage regulating and timing functions is composed of a rectification controllable device which is connected in series with a load and a relay whose two ends are provided with starting buttons and which is provided with contact points. A relay is controlled by one electronic timer. The utility model has the advantages of small volume, light weight, high reliability, small wastage, copper and iron materials saving, no spark, no noise, large voltage regulation range (80-210V ), stepless regulation, and good waveshape symmetrical characteristic. The electronic regulator with voltage regulating and timing functions is applicable to the timing and the speed regulation of electric fans. The electronic regulator with voltage regulating and timing functions can also be used for other household electric appliances requiring voltage regulation and timing control.

Description

Electronic adjuster with voltage regulating and timing function

The utility model belongs to domestic electric appliances controller, but the electronic electronic of particularly a kind of pressure regulation, timing.

The tapped reactor of string in load circuit generally adopted in family expenses ceiling fan speed governing commonly used, reaches the purpose of stepping speed governing with change reactance pressure drop by the mechanical switch conversion.This regulative mode speed is poor, the copper iron loss is big, and needs to consume a large amount of copper iron lattice, and volume weighs greatly; Because use mechanical switch to rotate, contact is easy to generate spark scaling loss contact, failure rate height during gear shift.

But the purpose of this utility model provides a kind of pressure regulation, electronic electronic regularly.

In order to achieve the above object, the utility model adopts following technical proposals:

One with load and two ends and the rectification controllable devices that has the relay contact of start button to go here and there mutually, be used to regulate the voltage that is added in the load; An electronic timer is used for control relay, makes the contact by given time folding, and the dc supply of this electronic timer extracts at rectification controllable devices two ends, provides after voltage stabilizing.

The utility model has the advantages that: volume is small and exquisite, in light weight, loss is little, save copper-steel material, noiselessness, no-spark, reliable operation, voltage adjusting range big (80-210V), and is stepless smooth adjustment, and waveform symmetry is good.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is circuit theory diagrams.

Below in conjunction with accompanying drawing the utility model is described in further detail.

In Fig. 1, the 1st, housing, the 2nd, printed circuit board, the 3, the 4th, the introducing terminal screw of this adjuster.AN is a start button, is used for start-up circuit work.RW ₁Be the voltage-regulation potentiometer knob, be used to adjust the voltage that is added in the load.RW ₂For

Potentiometer knob is adjusted in the timing of timer, regulates it timing was selected arbitrarily in the scope at 1 minute to 4 hours.

Fig. 2 is circuit theory diagrams.Form by voltage adjuster and electronic timer two parts.SCR is that one-way SCR, 2CS are diac, RW ₁, R ₁, C ₁Be phase-shift network, constitute voltage adjuster jointly.Regulate RW ₁Value can change the angle of flow of SCR, also can change the voltage swing that is added in the load; Timer is by time-base circuit IC555, timing element RW ₂, R2, C ₃, amplifier tube Q ₂And C ₃Discharge path diode D ₁Constitute the output V of IC555 ₀Succeed electrical equipment line bag J, D is the protection diode, and the value of regulating RW1 can change the time constant of RC, also can change the time regularly; ZD is bridge rectifier, voltage-stabiliser tube DW and amplifier tube Q ₁Constitute the voltage stabilizing power supply of timer; AN is and the startup at the relay contact two ends connects button, L is load.As seen from the figure, JK, ZD, SCR, timing circuit, L contact mutually, and IC555 is connected into the work of monostable pattern, and when the moment of pressing AN, SCR starts working, and power supply is to C ₃Charging is because of C ₃Voltage can not suddenly change, the current potential on the IC555S end is lower than 1/3Vcc, V ₀End is high level, electric, JK adhesive that J gets, and entire circuit is connected, and this moment is if regulate RW ₁Can change the voltage that is added on the L.Along with C ₃The increase of last charging voltage, the voltage on the IC555R end are also constantly risen, when be raised to 〉=during 2/3Vcc, V ₀The end output low level, the J dead electricity, JK discharges, and entire circuit quits work, and finishes timed task.The length of timing depends on (RW ₂+ R ₁) C ₃(Q ₂1+ β) product, this timer takes to change RW ₂Size regulate timing.The characteristics of this circuit are owing to used amplifier tube Q ₂, make the time constant of RC enlarge β doubly, thereby the electric capacity of available low capacity reaches long-time time-delay, to dwindle machine volume, improves the accuracy of time-delay.

This device removes the speed governing that is used for electric fan, also can be used for suitable other electrical equipment control that needs the pressure regulation timing of load.

Claims

But 1, a kind of pressure regulation, electronic electronic regularly, mainly formed by electronic pressure controller and electronic timer and working power thereof, it is characterized in that: one with load and two ends and the rectification controllable devices that has the relay contact of start button to be in series, be used to regulate the voltage that is added in the load; An electronic timer is used for the control relay contact by folding preset time, and the working power of this electronic timer extracts at rectification controllable devices two ends, provides after voltage stabilizing.