CN2228261Y

CN2228261Y - Push-button touched stepless light-regulating wall switch

Info

Publication number: CN2228261Y
Application number: CN 95230787
Authority: CN
Inventors: 鄢长校
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-11
Filing date: 1995-04-11
Publication date: 1996-05-29
Anticipated expiration: 2005-04-11

Abstract

The utility model relates to a push-button touched stepless light-regulating wall switch. The utility model is characterized in that a push-button which is arranged in the center of a panel can be connected with a circuit board through a micro-moving contact and a micro-static contact, and the circuit board comprises a contactless switch circuit which is composed of a light-regulating integrated block, a bridge diode and a one-way thyristor. The utility model has the advantages of simple structure, good light-regulating effect, convenient and safe electricity saving and low cost, and also has the advantages that the brightness of light can be regulated optionally at any time in a stepless mode, and requirements for people are satisfied.

Description

Button touches formula stepless dimming switch on wall

The utility model belongs to a kind of light modulation switch on wall.

Common switch on wall is the button switch, can not adjust the brightness that changes light, function singleness.People if otherwise with lamplight brightness, need many dress switches, lamp holder or by debuging the photocontrol platform increases indoor circuit and takies the interior space.

But the purpose of this utility model is to provide a kind of regulated at will lamplight brightness, and simple energy-economized button touches formula stepless dimming switch on wall.

The utility model is a kind of such switch on wall, form by panel, button, circuit board, bonnet, it is characterized in that button is positioned at face plate center, the button inner prop contacts with the fine motion contact, by spring-loaded, spring is fixed in the sensitive switch shell, and place on the circuit board, little fixed contact passes the sensitive switch shell and connects firmly on circuit board as light adjusting circuit contact A N, circuit board contains light modulation ic chip and bridge joint voltage stabilizing circuit, output trigger switch circuit, signal input circuit, signal feedback and the output stepless dimming switching circuit that circuit is linked to be of limiting the quantity of.Wherein, the light modulation ic chip is SM7232, the bridge joint voltage stabilizing circuit by with bridge diode D ₃, D ₄, D ₅, D ₆And voltage-stabiliser tube DW, D ₁, R ₁, C ₃Be connected into, signal input circuit is by 5 pin and the R of IC ₃, C ₄, contact A N is connected into, output trigger switch circuit is by 8 pin, 7 pin, 6 pin and one-way SCR T and the R of IC ₄Be connected into signal feedback and output 3 pin, 4 pin and the R of circuit that limit the quantity of by IC ₂, C ₁, C ₂, D ₂Be connected into.

The utility model is simply attractive in appearance, does not have shelves, and is stepless, as long as the hand button can be realized open and close, and the brightness of regulated at will light at any time, good dimming effect has satisfied the needs of people's study, work, life, economize on electricity, safe and reliable, with low cost.

Fig. 1 the utility model structure cutaway view.

Fig. 2 Fig. 1 vertical view.

Fig. 3 switch inner control circuit schematic diagram.

Be described in further detail the utility model below in conjunction with accompanying drawing.

In Fig. 1, dress button 2 is plastic shaping in the middle of the panel 1, and available screw is loaded on the wall.The microswitch shell 3 of plastics, little fixed contact 5 are fixed on the circuit board 7, and centre bore mounting spring 6 refills fine motion contact 4, is screwed circuit board then on panel, can adorn bonnet 9, have 2 binding posts 8 to be used for wiring on the circuit board.Wherein, stepless dimming switching circuit on the circuit board is by D ₃, D ₆Bridge-type connection and one-way SCR T form the major loop of lamp, and by T ₁Full-wave rectified voltage of two ends output, again through D ₁, D _w, R ₁And C ₃Low-voltage filter output 5V direct voltage for light modulation ic chip usefulness, IC is SM7232, R ₂Be IC ₄Pin provides synchronizing signal, C ₄, C ₅Filtering and filtering interfering usefulness, R ₄Be T trigger electrode series resistance, R ₃Be the sense resistance (see figure 3), 1 pin, 2 pin of IC connect positive supply, 3 pin of IC, 4 pin and capacitor C ₁, C ₂The minimum and maximum angle of flow that connects control T.Little fixed contact is left in the fine motion contact under spring action at ordinary times, when press push button 2, and fine motion contact and little fixed contact closure, contact A N connects start-up circuit.As the time of depressing was less than 0.4 second, AN opens (be originally and close) or closes the energizing signal of (former opened before this) through one of IC5 pin input, after IC processing, export to the control utmost point of T by 8 pin, T just carries out the function that opens or closes, make lamp bright or go out, as the press push button time during greater than 0.4 second, IC makes the T angle of flow change to systemic circulation to little from big, with 6 seconds was the cycle, make output voltage drop to 16 volts gradually and increase to 210 volts of stepless variations more gradually from 210 volts, realized the purpose of light stepless dimming, thought that raising one's hand got final product when a certain moment brightness was satisfied, light just is parked in a certain brightness, until next time again till the timing, have memory function, but and switch when all, light modulation, arbitrarily operation.

Claims

1. a button touches formula stepless dimming switch on wall, form by panel, button, circuit board, bonnet, it is characterized in that button is positioned at face plate center, the button inner prop contacts with the fine motion contact, by spring-loaded, spring is fixed in the sensitive switch shell, and place on the circuit board, little fixed contact passes the sensitive switch shell and connects firmly on circuit board as light adjusting circuit contact A N, circuit board contains light modulation ic chip and bridge joint voltage stabilizing circuit, output trigger switch circuit, signal input circuit, signal feedback and the output stepless dimming switching circuit that circuit is linked to be of limiting the quantity of.

2. according to the described switch on wall of claim 1, it is characterized in that described light modulation ic chip is SM7232, the bridge joint voltage stabilizing circuit is by bridge diode D ₃, D ₄, D ₅, D ₆And voltage-stabiliser tube DW, D ₁, R ₁, C ₃Be connected into, signal input circuit is by 5 pin and the R of IC ₃, C ₄, contact A N is connected into, output trigger switch circuit is by 8 pin, 7 pin, 6 pin and one-way SCR T and the R of IC ₄Be connected into signal feedback and output 3 pin, 4 pin and the R of circuit that limit the quantity of by IC ₂, C ₁, C ₂, D ₂Be connected into.