CN201733480U

CN201733480U - LED fluorescent lamp capable of realizing mechanical dimming

Info

Publication number: CN201733480U
Application number: CN2010201868574U
Authority: CN
Inventors: 孟令辉; 刘�英
Original assignee: DONGGUAN YIJING PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: DONGGUAN YIJING PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2010-05-06
Filing date: 2010-05-06
Publication date: 2011-02-02
Anticipated expiration: 2020-05-06

Abstract

The utility model relates to an LED fluorescent lamp capable of realizing a mechanical dimming and belongs to the technical field of a lamp. In the prior art, the brightness of the fluorescent lamp cannot be regulated after the fluorescent lamp is turned on. The LED fluorescent lamp comprises a switch, a rectification and voltage regulation module, more than one LED lamps, a dimming signal module and a dimming control module. The dimming signal module is electrically connected with the dimming control module. The rectification and voltage regulation module and the dimming signal module are electrically connected with the switch; the dimming control module and the rectification and voltage regulation module are electrically connected with more than one LED lamps. The dimming signal module comprises resistances R1 and R2, rectifier diodes D1 and D2, a voltage regulation diode D3 and capacitances C3 and C2. The dimming control module comprises a singlechip U1, a photoelectric coupler U2, a resistance R3 and a dimming triode Q1. The utility model used as the LED fluorescent lamp has the advantage that the brightness of the lamp can be regulated according to the requirements of people and is convenient to regulate so as to meet the requirements of people and be favorable for saving electric energy and reducing cost.

Description

Can realize the LED fluorescent lamp of mechanical type light modulation

Technical field

The utility model relates to technical field of lamps, particularly relates to a kind of LED fluorescent lamp that can realize the mechanical type light modulation.

Background technology

At present, can use fluorescent lamp lighting in places such as hotel or families.The fluorescent lamp of prior art is after turning on light, and it is constant that its brightness reaches after the brightest always, i.e. the brightness of fluorescent lamp can not be regulated.When people when watching TV programme or do some thing, wish the brightness of fluorescent lamp is dimmed so that watch TV programme or do some thing, also help saving electric energy on the other hand, the minimizing expenses.This purpose is irrealizable to present fluorescent lamp.Therefore, people wish that urgently a kind of LED fluorescent lamp of mechanical type light modulation of realizing comes out.

The utility model content

Technical problem to be solved in the utility model is, overcome the fluorescent lamp defective that its brightness can not be regulated after turning on light of prior art, a kind of LED fluorescent lamp that can realize the mechanical type light modulation is provided, this LED fluorescent lamp of mechanical type light modulation of realizing can be regulated the brightness of fluorescent lamp according to people's needs, satisfying people watches TV programme or other demand on the one hand, also help saving electric energy on the other hand, reduce expenses.

The technical scheme that its technical problem that solves the utility model adopts is: the LED fluorescent lamp that can realize the mechanical type light modulation, comprise switch, rectifying and voltage-stabilizing module and more than one LED lamp, this LED fluorescent lamp also comprises dim signal module and dimming controlling module, the dim signal module electrically connects dimming controlling module, rectifying and voltage-stabilizing module and dim signal module form with switch and are electrically connected, and dimming controlling module and rectifying and voltage-stabilizing module form with more than one LED lamp and be electrically connected.

In technique scheme, described dim signal module comprises resistance R 1 and R2, rectification diode D1 and D2, zener diode D3, capacitor C 3 and C2, resistance R 1, rectification diode D1 and capacitor C 3 form one with the alternating current step-down, rectification and filtering obtain the electrical connection of direct voltage, resistance R 2 and zener diode D3 form an electrical connection that described direct voltage is obtained once more a 5V burning voltage after step-down and the voltage stabilizing, 5V burning voltage one tunnel is connected the VDD of the single-chip microcomputer U1 in the dimming controlling module through rectification diode D2 with capacitor C 2, another road of 5V burning voltage connects the GP1 of the single-chip microcomputer U1 in dimming controlling module.

Described dimming controlling module comprises single-chip microcomputer U1, photoelectrical coupler U2, resistance R 3 and light modulation triode Q1, the input of photoelectrical coupler U2 connects the GP0 of single-chip microcomputer U1, another input connects the dim signal module, the output of photoelectrical coupler U2 connects resistance R 3, another output connects light modulation triode Q1, light modulation triode Q1, more than one LED lamp, rectifying and voltage-stabilizing module output link together in regular turn, and resistance R 3 other ends connect rectifying and voltage-stabilizing module output.

The beneficial effects of the utility model are: the LED fluorescent lamp that can realize the mechanical type light modulation of said structure, owing to also comprise dim signal module and dimming controlling module, the dim signal module electrically connects dimming controlling module, rectifying and voltage-stabilizing module and dim signal module form with switch and are electrically connected, dimming controlling module and rectifying and voltage-stabilizing module form with more than one LED lamp and are electrically connected, in the light modulation process, pass through console switch, disconnect and energized, dim signal module and dimming controlling module can be adjusted the brightness of LED lamp, when a certain brightness of the LED lamp in being in progressive formation is required brightness, be that operable switch disconnects and energized is once confirmed, lamp will keep current brightness, thereby satisfy the demand that people watch TV programme or do some thing.The brightness of lamp can be regulated according to people's needs, and is easy to adjust; Also help saving electric energy on the other hand, prolong the useful life of lamp, reduce expenses; By programming Control, do not need dimmer, it is adjustable to reach illumination; Single of may command or multi-lamp reduce wiring cost; Have gradually bright function, by key control, to bright, vision protection prevents visual fatigue or discomfort to lamp by dark by mechanical type; Have the delayed startup function, reduce heavy current impact, life-saving and increase illuminance stability.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

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

Fig. 2 is an operating process block diagram of the present utility model.

Among the figure, 1, the rectifying and voltage-stabilizing module; 2, dim signal module; 3, dimming controlling module; 4, LED lamp.

Embodiment

Embodiment 1, referring to Fig. 1, the described LED fluorescent lamp that can realize the mechanical type light modulation of present embodiment, comprise switch, rectifying and voltage-stabilizing module 1 and more than one LED lamp 4, present embodiment also comprises dim signal module 2 and dimming controlling module 3, dim signal module 2 electrically connects dimming controlling module 3, rectifying and voltage-stabilizing module 1 and dim signal module 2 form with switch and are electrically connected, dimming controlling module 3 and rectifying and voltage-stabilizing module 1 form with more than one LED lamp 4 and are electrically connected, in Fig. 1, only drawn the light-emitting diode of three LED lamps 4.Described dim signal module 2 comprises resistance R 1 and R2, rectification diode D1 and D2, zener diode D3, capacitor C 3 and C2, resistance R 1, rectification diode D1 and capacitor C 3 form one with the alternating current step-down, rectification and filtering obtain the electrical connection of direct voltage, resistance R 2 and zener diode D3 form an electrical connection that described direct voltage is obtained once more a 5V burning voltage after step-down and the voltage stabilizing, 5V burning voltage one tunnel is connected the VDD of the single-chip microcomputer U1 in the dimming controlling module 3 through rectification diode D2 with capacitor C 2, another road of 5V burning voltage connects the GP1 of the single-chip microcomputer U1 in dimming controlling module 3.Described dimming controlling module 3 comprises single-chip microcomputer U1, photoelectrical coupler U2, resistance R 3 and light modulation triode Q1, the input of photoelectrical coupler U2 connects the GP0 of single-chip microcomputer U1, another input connects dim signal module 2, the output of photoelectrical coupler U2 connects resistance R 3, another output connects light modulation triode Q1, light modulation triode Q1, more than one LED lamp 4, rectifying and voltage-stabilizing module 1 output link together in regular turn, and resistance R 3 other ends connect rectifying and voltage-stabilizing module 1 output.

Referring to Fig. 1 and Fig. 2, the LED fluorescent lamp that present embodiment is described can realize the mechanical type light modulation closes a switch (turning on light) in use for the first time, lamp in 3 seconds its brightness from shadow to the brightest.After lamp was opened, the 220V alternating current was through resistance R 1 step-down, through rectification diode D1 rectification, obtain a direct voltage through capacitor C 3 filtering; Described direct voltage obtains a 5V burning voltage through resistance R 2 step-down once more, after zener diode D3 voltage stabilizing; This 5V burning voltage one tunnel is isolated and capacitor C 2 energy storage through rectification diode D2, resupplies single-chip microcomputer U1 work, allows single-chip microcomputer U1 work 6 seconds above (model of single-chip microcomputer U1 can be PIC10F202) under the situation that capacitor C 2 can externally be cut off the power supply.The GP1 that single-chip microcomputer U1 is led on another road of described 5V burning voltage detects (being the 5V high level under the normal condition) as dim signal, dimming control signal of the GP0 of single-chip microcomputer U1 output is controlled light modulation triode Q1 through photoelectrical coupler U2 LED lamp 4 is carried out light modulation (effect of photoelectrical coupler U2 is to make LED lamp 4 and main mains isolation, and resistance R 3 is power supply current-limiting resistances of photoelectrical coupler U2).Detection have or not switch press (opening time≤1.5S), do not remain on the brightest state there being switch to press when action lamp.When the needs light modulation, carry out following operation: after lamp is opened, (promptly open a pass one by a disconnected switch, the time of opening again behind the pass is less than or equals 1.5 seconds), lamp is extremely the darkest from existing brightness gradual change, progressive formation be 5 seconds (light from the brightest adjust to the darkest, 5S finishes the light modulation process), in progressive formation as will confirm current brightness, by disconnected switch, lamp will keep current brightness, and (detection has or not switch to press, opening time≤1.5S again, when pressing disconnected switch, just finish the light modulation operation, lamp keeps existing luminance state, finishes the light modulation process).As not according to disconnected switch, lamp remains on the brightest state.In the time will turning off the light, as long as switch is pressed the position of pass.

The operation principle of present embodiment:

After lamp is opened, single-chip microcomputer U1 starts working, (time is less than or equal to 1.5 seconds) is because the capacity of capacitor C 3 is very little when the user is closed one time by disconnection, the very fast disappearance of voltage, voltage on the GP1 of single-chip microcomputer U1 becomes low level by the 5V high level at once, but owing to the energy storage of unidirectional conducting of rectification diode D2 and capacitor C 2 on the loop of giving single-chip microcomputer U1 power supply, single-chip microcomputer U1 will work on.Single-chip microcomputer U1 just can discern switching signal for the first time, and as the commencing signal of light modulation, when connecting in 1.5 seconds civil power later, when the GP1 of single-chip microcomputer U1 becomes the 5V high level by 0V, the GP0 of single-chip microcomputer U1 begins to export dim signal through photoelectrical coupler U2 control light modulation triode Q1 light modulation, in the process of brightness by bright deepening of lamp, (promptly open a pass one by disconnecting the pass once more, the time of opening again behind the pass is less than or equals 1.5 seconds), occur one on the GP1 of single-chip microcomputer U1 once more and become the potential change that 0V becomes 5V again by 5V, single-chip microcomputer U1 can discern in the same old way, after single-chip microcomputer U1 is identified as second control signal, the GP0 of single-chip microcomputer U1 will latch current control, also just preserve the luminance state when headlight.

The above only is a preferred embodiment of the present utility model, is not to be used for limiting the utility model, and under the prerequisite that does not break away from the utility model structural principle, all its similar structures all should be covered by the protection range of the utility model patent.

Claims

1. can realize the LED fluorescent lamp of mechanical type light modulation, comprise switch, rectifying and voltage-stabilizing module and more than one LED lamp, it is characterized in that: also comprise dim signal module and dimming controlling module, the dim signal module electrically connects dimming controlling module, rectifying and voltage-stabilizing module and dim signal module form with switch and are electrically connected, and dimming controlling module and rectifying and voltage-stabilizing module form with more than one LED lamp and be electrically connected.

2. the LED fluorescent lamp that can realize the mechanical type light modulation according to claim 1, it is characterized in that: described dim signal module comprises resistance R 1 and R2, rectification diode D1 and D2, zener diode D3, capacitor C 3 and C2, resistance R 1, rectification diode D1 and capacitor C 3 form one with the alternating current step-down, rectification and filtering obtain the electrical connection of direct voltage, resistance R 2 and zener diode D3 form an electrical connection that described direct voltage is obtained once more a 5V burning voltage after step-down and the voltage stabilizing, 5V burning voltage one tunnel is connected the VDD of the single-chip microcomputer U1 in the dimming controlling module through rectification diode D2 with capacitor C 2, another road of 5V burning voltage connects the GP1 of the single-chip microcomputer U1 in dimming controlling module.

3. the LED fluorescent lamp that can realize the mechanical type light modulation according to claim 1, it is characterized in that: described dimming controlling module comprises single-chip microcomputer U1, photoelectrical coupler U2, resistance R 3 and light modulation triode Q1, the input of photoelectrical coupler U2 connects the GPO of single-chip microcomputer U1, another input connects the dim signal module, the output of photoelectrical coupler U2 connects resistance R 3, another output connects light modulation triode Q1, light modulation triode Q1, more than one LED lamp, rectifying and voltage-stabilizing module output links together in regular turn, and resistance R 3 other ends connect rectifying and voltage-stabilizing module output.