CN2824495Y

CN2824495Y - Piano key type multi-stage LED light modulating desk lamp

Info

Publication number: CN2824495Y
Application number: CN 200520045236
Authority: CN
Inventors: 宋嘉鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-23
Filing date: 2005-09-23
Publication date: 2006-10-04
Anticipated expiration: 2015-09-23

Abstract

The utility model relates to a piano key type multi-stage LED light modulating desk lamp. 220V commercial power passes through three groups of RC resistor-capacitor current-limiting circuits with different electrical parameters, and is converted into DC high voltage by a bridge rectifier to start LED serial assemblies, and simultaneously, different current is selected through a multi-stage brightness control switch, the strong, the medium and the weak stage variation of the LED can be realized, and thus the light modulating of a filament lamp can be replaced, and the overall processes of converting the electric energy into the light energy are realized with low power consumption.

Description

Many grades of LED lamp dimmers of piano type

Affiliated technical field: the utility model relates to a kind of lamp dimmer device, many grades of LED lamp dimmers of especially a kind of piano type.

Technical background: at present, its light source of lamp dimmer civilian on the household electrical appliance market of various places nearly all is an incandescent lamp bulb, and the exploitation H of minority producer energy-conservation cast is also arranged once in a while.Although these desk lamps with dimmer switch are awfully hot pin on market, people like very that also its power consumption is bigger, especially incandescent lamp bulb.Along with the new product development of electronic applications, it is the LED light-emitting diode that a kind of novel electric light source is arranged, and its power consumption approximately is 1/100 of an incandescent lamp bulb, has great luminous efficiency and extremely long useful life.

In order to respond the call of the national energy savings that proposes, the utility model provides a kind of new LED lamp dimmer, it can replace all kinds of desk lamps with dimmer switch on the market fully, brightness does not weaken, save remarkable benefit, especially burn in the other nothing heat of desk lamp and feel, have characteristics such as low-power consumption, noiseless and volume are little, allow 21 century this revolution of green illumination enter each family.

Summary of the invention: technical solution adopted in the utility model is: input 220V civil power is through the RC capacitance-resistance current-limiting circuit by three groups of different electrical parameters, and converts dc high voltage to by bridge rectifier and light luminescence component by the series connection of LED light-emitting diode.Simultaneously select different electric currents by many grades of brightness regulating switch, " strong, in, weak " that reach light-emitting diode changes, thereby replaces the light modulation of incandescent lamp bulb, and its electric energy converts the luminous energy overall process to and is low-power consumption.

The utility model has adopted such scheme only to manage cost and has slightly raise, but along with the raising of production efficiency, also can overcome, and the more important thing is and saved the energy, and the multiple glow color of LED tool, range of application is very wide.

Description of drawings: many grades of LED lamp dimmers of the utility model piano type are described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the electrical schematic diagram of many grades of LED lamp dimmers of the utility model piano type.

Comprise by R referring to Fig. 1 the utility model ₂C ₁, R ₃C ₂, R ₄C ₃Three groups of resistance-capacitance depressurization current-limiting circuits are by multi-gear switch S ₁, S ₂, S ₃And S ₄The brightness regulating switch of forming is by rectifier diode D ₁～D ₄The AC/DC changeover switch of forming, and by LED ₁～LED ₄₅Circuit such as the light-emitting diode series connection luminescence component of forming are formed, and below the each part mentioned above circuit are described one by one:

Embodiment: input civil power 220V one end and resistance R ₁The connection of one end, the civil power other end and rectifier diode bridge heap D ₂With D ₃Connect.R ₁The other end respectively with multi-gear switch S ₁, S ₂, S ₃An end connect; S ₁The other end and " resistor-capacitor unit " R ₂, C ₁An end connect; S ₂The other end and " resistor-capacitor unit " R ₃, C ₂An end connect; S ₃The other end and " resistor-capacitor unit " R ₄, C ₃An end connect; The other end of three " group is held part " is in parallel piles D with the rectifier diode bridge ₁With D ₄Connect.Multi-gear switch S ₄Be separate state.Rectifier diode bridge heap " just " output and piezo-resistance R ₅One end, capacitor C ₄"+" utmost point, LED ₁Anode connects; Rectifier diode bridge heap " bearing " output and piezo-resistance R ₅The other end, capacitor C ₄"-" utmost point, current-limiting resistance R ₆One end connects.LED ₁～LED ₄₅Be series connection, LED ₄₅Negative electrode and current-limiting resistance R ₆The other end connects.

The above multi-gear switch S ₁, S ₂, S ₃And S ₄Brightness regulating switch can adopt for example many grades of interlock switch of piano type.

The above LED ₁～LED ₄₅Light-emitting diode can adopt for example ultra-bright LED, and brightness is at 14000～20000 pipes and tubes.

Next the course of work of many grades of LED lamp dimmers of the utility model piano type is described:

Civil power 220V is through resistance R ₁Current limliting, its effect is equivalent to fuse.If multi-gear switch S ₁Get through, because capacitor C ₁Act on its current stabilization about 25MA, for LED sends out the high light data.At this moment, rectifier diode bridge heap D ₁～D ₄The commercial power rectification is become high direct voltage, because piezo-resistance R ₅Effect, output voltage remains on about 160V, through capacitor C ₄LED is lighted in filtering ₁～LED ₄₅The tandem light-emitting diode, terminal resistance R ₆Be current-limiting protection, for the usefulness of illumination.Multi-gear switch S ₂, S ₃Capacitor C in like manner, ₂, C ₃It is middle light and low light level data that electric current is located at 12MA, 4MA respectively.Here multi-gear switch S ₄Be separate state, for civil power turn-offs character.Capacitance decompression current-limiting circuit computing formula is: I ≈ 69C, C are UF, and I is MA, and suitable voltage is 220V, and frequency is the alternating current of 50HZ.

The above only is the embodiment of a common lamp dimmer of many grades of LED lamp dimmers of the utility model piano type, according to design of the present utility model, principle, also can be developed into fourth gear or five grades, even develop into and decorate pendent lamp light modulation etc. and still belong to scope of the present utility model.

Claims

1, many grades of LED lamp dimmers of a kind of piano type, it comprises that input civil power process is by resistance R ₂Capacitor C ₁, resistance R ₃Capacitor C ₂, resistance R ₄Capacitor C ₃The resistance-capacitance depressurization current-limiting circuit of three groups of different electrical parameters forming, and by rectifier diode bridge heap D ₁～D ₄The AC/DC changeover switch of forming becomes high direct voltage and lights LED ₁～LED ₄₅The light-emitting diode component of forming is simultaneously by multi-gear switch S ₁, S ₂, S ₃And S ₄Select different electric currents, " strong, in, weak " that reach light-emitting diode changes, and it is characterized in that: LED ₁～LED ₄₅Be tandem, and by resistance R ₆Protection.

2, many grades of LED lamp dimmers of piano type as claimed in claim 1 is characterized in that: described multi-gear switch S ₁, S ₂, S ₃And S ₄Be interlocking.