CN202679718U

CN202679718U - A non-isolated LED light-adjusting power switch on a wall

Info

Publication number: CN202679718U
Application number: CN 201220223931
Authority: CN
Inventors: 丁建国
Original assignee: SHANGHAI MAINLAND INFORMATION SERVICE CO Ltd
Current assignee: SHANGHAI MAINLAND INFORMATION SERVICE CO Ltd
Priority date: 2012-05-17
Filing date: 2012-05-17
Publication date: 2013-01-16
Anticipated expiration: 2022-05-17

Abstract

The utility model relates to a non-isolated LED light-adjusting power switch on a wall. The non-isolated LED light-adjusting power switch on a wall comprises an illumination light-adjusting switch device mounted inside a switch panel on the wall. The illumination light-adjusting switch device comprises a non-isolated LED light-adjusting driving power supply. The input end of the non-isolated LED light-adjusting driving power supply is connected with AC power supply, and the anode of the output end of the non-isolated LED light-adjusting driving power supply is connected with the anode of a LED lamp while the cathode of the output end of the non-isolated LED light-adjusting driving power supply is connected with the cathode of the LED lamp. A potentiometer used for adjusting brightness of the LED lamp is also arranged on the non-isolated LED light-adjusting driving power supply. The driving power supply and the potentiometer are installed inside an original switch box on the wall so that the wall is prevented from being destroyed to arrange wires, and with easy installation and little labor and cost, the non-isolated LED light-adjusting power switch on a wall is applicable to various LED lamps which satisfy isolation security level of commercial power and which have no internal driving power supply, achieving easy installation and reducing cost.

Description

Non-isolation LED adjusting light switch on the wall

Technical field

The utility model relates to a kind of LED driving power room lighting light modulating device, particularly relates to non-isolation LED adjusting light switch on a kind of wall.

Background technology

Present domestic LED illumination substitutes the fluorescence fluorescent lamp and energy-saving fluorescent lamp has been inexorable trend.Because electric current adapts to fast variation during the work of LED element, LED driving power design dimming function is very convenient.The use of LED desk lamp with dimmer switch offers convenience to the Working Life of energy-saving low-carbon.But the LED desk lamp with dimmer switch carries out light modulation mostly in the following way at present: 1. utilize the SCR AC pressure regulation to add LED driving power (there is the IC of corresponding function in the producer of nearly all production LED driving chip); 2. utilizing the AC switch to close continuously at short notice and opening makes driving power IC do corresponding the variation; 3. adopt processor IC chip to add remote-transmitter and reception; 4.LED lamp dimmer.Above four kinds of situations have weak point.Its a pair of electrical network has too large interference; Its two light modulation is inconvenient; Its three cost is too high; Its four application surface is too narrow.Ceiling light and fluorescent lamp occupy very large proportion at room lighting, and the LED dimming drive power is installed on the ceiling, need to carry out remote control by remote controller during use, owing to having the remote controller more than 3 in existing each family at least, it is very inconvenient therefore to use.

At this, market demand has cheaply a kind of, to LED ceiling light or the effective light modulation of fluorescent lamp (0 ~ 100%), is convenient to again the cheap and good-quality Novel control device of installation and maintenance, make the LED illumination enter huge numbers of families common people family, the whole society can both popularize and use the LED energy-saving light.

Summary of the invention

Technical problem to be solved in the utility model provides non-isolation LED adjusting light switch on a kind of wall, and cost is low, and to the effective light modulation of LED light fixture (10 ~ 100%), is convenient to again installation and maintenance.

The technical scheme that its technical problem that solves the utility model adopts is: non-isolation LED adjusting light switch on a kind of wall is provided, comprise the illumination dimmer switch device in the switch panel that is installed in metope, described illumination dimmer switch device comprises non-isolation LED dimming drive power; Described non-isolation LED dimming drive power input links to each other with fire wire bus with the zero line bus of alternating current, the positive pole of output links to each other with live wire in the switch panel, and link to each other with the positive pole of LED lamp, the negative pole of output links to each other with zero line in the switch panel, and links to each other with the negative pole of described LED lamp; Also be provided with the potentiometer for adjusting brightness of LED lamps on the described non-isolation LED dimming drive power.

Described non-isolation LED dimming drive power comprises step-down constant current IC control circuit; The input of described step-down constant current IC control circuit links to each other with alternating current, and output links to each other with the LED lamp; The power end VCC of described step-down constant current IC control circuit chip links to each other with an end of potentiometer, the other end ground connection of described potentiometer, and minute pressure side of described potentiometer links to each other with the light modulation input of described step-down constant current IC control circuit.

Also comprise Interference absorb circuit, bridge rectifier and passive type power factor (PF) Circuit tuning between described step-down constant current IC control circuit and the alternating current; Described alternating current links to each other with the input of passive type power factor (PF) Circuit tuning with described step-down constant current IC control circuit through Interference absorb circuit, bridge rectifier successively.

Described step-down constant current IC control circuit adopts the PT4207 chip to realize.

Beneficial effect

Owing to having adopted above-mentioned technical scheme, the utility model compared with prior art has following advantage and good effect: the utility model is installed on driving power and potentiometer in the former switch enclosure of metope, need not Destroy metopeWinding displacement is easy for installation in addition, and laborsaving save money is fit to the various mains insulation safe classes that reach, and in the lamp without the LED light fixture of driving power, it is convenient to install, and reduces cost.As required free adjustment brightness, energy-efficient.Driving power: with the isolation of passive type power factor, when being 25W with LED driving power load light modulation and the switch panel one, power factor=0.90; Efficient=0.90, the permission voltage range of the utility model driving power load are between 50V-100V, and electric current is at 0.2 ~ 0.3A, the implementation quite flexible.

Description of drawings

Fig. 1 is schematic diagram of the present utility model;

Fig. 2 is the circuit diagram of driving power in the utility model.

Embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only are used for explanation the utility model and are not used in the scope of the present utility model that limits.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.

The utility model relates to non-isolated buck LED adjusting light switch on a kind of wall, as shown in Figure 1, comprises the illumination dimmer switch device in the switch panel 1 that is installed in metope, and described illumination dimmer switch device comprises non-isolation LED dimming drive power 2; Described non-isolation LED dimming drive power 2 inputs link to each other with fire wire bus with the zero line bus of alternating current, the positive pole of output links to each other with live wire in the switch panel, and link to each other with the positive pole of LED lamp 3, the negative pole of output links to each other with zero line in the switch panel, and links to each other with the negative pole of described LED lamp 3; Also be provided with for the potentiometer 4 of regulating 3 brightness of LED lamp on the described non-isolation LED dimming drive power 2.

Its installation method is as follows: A. links to each other the fire wire bus of alternating current respectively with the zero line bus first with the AC input of non-isolation LED dimming drive power.B. connecting the output of the former live wire that removes light fixture through switch and non-isolation LED dimming drive power+LED holds; Connect the former zero line that removes light fixture and non-isolation LED dimming drive power-the LED end.C. non-isolation LED dimming drive power is installed on the control switch position of former light fixture, replaces former switch.D. LED lamp (reach the mains insulation safe class, in the lamp without the LED light fixture of driving power) is replaced old light fixture, the live wire of former light fixture connect the LED lamp+the LED end; The zero line of former light fixture connects LED lamp-LED end, finishes the installation of LED lamp and LED dimming drive power.

LED mains lighting supply dimmer switch is designed to lighting switch onesize, same shape, and purpose is to replace the lighting switch of former light fixture.The AC input of LED mains lighting supply dimmer switch does not change with the lighting switch of former light fixture.The LED light fixture that outputs to of LED mains lighting supply dimmer switch becomes the DC direct current from original AC alternating current, formerly still can utilize to the light fixture cabling from switch within the walls, and just will distinguish which wire just is, which root is negative.If confused lamp can be not bright, as long as two lines of exchange output.(power supply and LED light fixture must be installed when powered-down).

The utility model is installed on driving power and potentiometer in the former switch enclosure of metope, need not break the other winding displacement of wall, easy for installation, laborsaving save money is fit to the various mains insulation safe classes that reach, in the lamp without the LED light fixture of driving power, it is convenient to install, reduce cost, and as required free adjustment brightness, energy-efficient.

As shown in Figure 2, described non-isolation LED dimming drive power comprises step-down constant current IC control circuit 24; The input of described step-down constant current IC control circuit 24 links to each other with passive type power factor (PF) Circuit tuning 23, and output links to each other with the LED lamp; The power end VCC of described step-down constant current IC control chip links to each other with an end of potentiometer, the other end ground connection of described potentiometer, minute pressure side of described potentiometer and described step-down constant current IC control ChipThe light modulation input link to each other.Also comprise Interference absorb circuit 21, bridge rectifier 22 and passive type power factor (PF) Circuit tuning 23 between described step-down constant current IC control circuit and the alternating current; Described alternating current links to each other with the input of passive type power factor (PF) Circuit tuning 23 with described step-down constant current IC control circuit 24 through Interference absorb circuit 21, bridge rectifier 22 successively.Wherein, described step-down constant current IC control circuit adopts the PT4207 chip to realize.

Light modulation principle of the present utility model is as follows: after civil power is inputted through the AC input, pass through successively by inductance L 2, inductance L 3 and capacitor C 10 form the Interference absorb circuit, by diode D1, diode D2, diode D3, the bridge rectifier that diode D4 forms, and capacitor C 8, capacitor C 9, diode D7, diode D8, and the passive type power factor (PF) Circuit tuning of diode D9 composition.By the PT4207 chip, the step-down constant-current control circuit with key light function that the SW1 potentiometer forms.The PT4207 chip, field effect transistor Q1, D5 and inductance L 1 form DC/DC step-down constant-current circuit, change resistance R 8 with this, resistance R 9 and resistance R 10 resistance capable of regulating electric power outputting currents.The VCC end output 5V reference voltage of PT4207 chip is by resistance R 13, potentiometer carries out delivering to after the dividing potential drop DIM brightness adjustment control end of PT4207 chip, the DIM brightness adjustment control end that regulator potentiometer makes the PT4207 chip changes from 0.6V ~ 2.5V, the LED lamp obtain 10% ~ 100% constant SpecifiedElectric current.Because the non-isolation LED dimming drive power in the present embodiment comprises the passive type power factor regulating circuit, when therefore being 25W with LED driving power load light modulation and the switch panel one, power factor is 0.90, and efficient is 0.90.The permission voltage range of the utility model driving power load is at 50V ~ 100V, electric current 0.2A ~ 0.3A.The utility model is installed on driving power and potentiometer in the former switch enclosure of metope, need not destroy the other winding displacement of metope, and is easy for installation, laborsaving save money is fit to the various mains insulation safe classes that reach, in the lamp without the LED light fixture of driving power, it is convenient to install, and reduces cost.As required free adjustment brightness, energy-efficient.

Claims

1. non-isolation LED adjusting light switch on the wall comprises the illumination dimmer switch device in the switch panel (1) that is installed in metope, it is characterized in that, described illumination dimmer switch device comprises non-isolation LED dimming drive power (2); Described non-isolation LED dimming drive power (2) input links to each other with fire wire bus with the zero line bus of alternating current, the positive pole of output links to each other with live wire in the switch panel, and link to each other with the positive pole of LED lamp (3), the negative pole of output links to each other with zero line in the switch panel, and links to each other with the negative pole of described LED lamp (3); Also be provided with for the potentiometer (4) of regulating LED lamp (3) brightness on the described non-isolation LED dimming drive power (2).

2. non-isolation LED adjusting light switch on the wall according to claim 1 is characterized in that, described non-isolation LED dimming drive power (2) comprises step-down constant current IC control circuit (24); The input of described step-down constant current IC control circuit (24) links to each other with alternating current, and output links to each other with the LED lamp; The power end VCC of described step-down constant current IC control circuit (24) chip links to each other with an end of potentiometer, the other end ground connection of described potentiometer, and minute pressure side of described potentiometer links to each other with the light modulation input of described step-down constant current IC control circuit (24).

3. non-isolation LED adjusting light switch on the wall according to claim 2, it is characterized in that, also comprise Interference absorb circuit (21), bridge rectifier (22) and passive type power factor (PF) Circuit tuning (23) between described step-down constant current IC control circuit (24) and the alternating current; Described alternating current passes through successively Interference absorb circuit (21), bridge rectifier (22) and the input of passive type power factor (PF) Circuit tuning (23) with described step-down constant current IC control circuit (24) and links to each other.

4. non-isolation LED adjusting light switch on the wall according to claim 2 is characterized in that, described step-down constant current IC control circuit (24) adopts the PT4207 chip to realize.