CN201218457Y

CN201218457Y - LED eye-protection desk lamp

Info

Publication number: CN201218457Y
Application number: CNU2008201022296U
Authority: CN
Inventors: 陈明刚; 汪荣华; 王维明
Original assignee: 李秀凤
Priority date: 2008-05-05
Filing date: 2008-05-05
Publication date: 2009-04-08
Anticipated expiration: 2018-05-05

Abstract

The utility model provides an LED eye protecting reading lamp with adjustable brightness, which comprises a lamp holder, a lampshade, an accumulator, a plurality of light emitting diodes and a control circuit thereof, wherein the lamp holder is connected with the lampshade into a whole, all light emitting diodes are arranged in the lampshade, the accumulator is arranged in the lamp holder, the control circuit is arranged in the lamp holder or the lampshade and the input terminal and the output terminal thereof are respectively and electrically connected with the accumulator and all light emitting diodes, and a brightness adjusting device is arranged among the control circuit and all light emitting diodes, thereby the light can be adjusted to an optimal state through the brightness adjusting device so as to protect the eyesight.

Description

A kind of LED eye-protecting desk lamp

Technical field

The utility model relates to a kind of LED eye-protecting desk lamp, belongs to household articles or office appliance field.

Background technology

Early stage desk lamp comprises lamp socket, lampshade, bulb and cable, and described lamp socket links to each other with the lampshade one, and bulb is located in the lampshade, and cable is located at and is used to connect bulb and commercial power socket in the lamp socket, and it dazzles bright showing as the desk lamp of light source by bulb, and energy consumption is big; People replaced incandescent lamp bulb with electricity-saving lamp afterwards, obtained obvious effects aspect energy saving, but the electricity-saving lamp flicker is serious, and the life-span is shorter; In recent years, people begin LED is used for desk lamp, and LED has superior performance anti-dazzling aspect the light, and it is not only energy-conservation but also prolonged greatly service life as cold light source.The part but present LED desk lamp still has some deficits: show that mainly the LED ray cast is concentrated, light is brilliant dazzling.

The utility model content

The purpose of this utility model provides a kind of LED eye-protecting desk lamp of adjustable brightness.

The technical solution adopted in the utility model is such: a kind of LED eye-protecting desk lamp, comprise lamp socket, lampshade, battery, a plurality of light emitting diode and control circuit thereof, described lamp socket links to each other with the lampshade one, each light emitting diode is located in the lampshade, battery is located in the lamp socket, control circuit is located in lamp socket or the lampshade and its input is electrically connected with battery and each light emitting diode respectively with output, is provided with brightness regulating apparatus between described control circuit and each light emitting diode.

Above-mentioned LED eye-protecting desk lamp, described brightness regulating apparatus comprises single-chip microcomputer, triode and light modulation button, described single-chip microcomputer is electrically connected with control circuit, each light emitting diode is connected in parallel in the colelctor electrode of triode, three outputs of described single-chip microcomputer are electrically connected with the base stage of triode respectively, and the light modulation button is located on the lamp socket and it is electrically connected with single-chip microcomputer and is used for three outputs that control single chip computer is connected with triode.

Above-mentioned LED eye-protecting desk lamp, described brightness regulating apparatus also comprises an auxiliary triode, described single-chip microcomputer is provided with other three outputs, these three outputs are electrically connected with the base stage of auxiliary triode respectively, other one group of light emitting diode is connected in parallel in the colelctor electrode of auxiliary triode, and described light modulation button is used for three outputs that control single chip computer is connected with auxiliary triode simultaneously.

Above-mentioned LED eye-protecting desk lamp, described lamp socket is provided with the DC charging socket, and described charging socket is electrically connected with battery.

Above-mentioned LED eye-protecting desk lamp, described lamp socket is provided with the USB charging socket, and described USB charging socket is electrically connected with battery.

By adopting the aforementioned techniques scheme; the obtained beneficial effect of the utility model is: described single-chip microcomputer is electrically connected with a plurality of light emitting diodes by three outputs; the light modulation button is under different press conditions like this; single-chip microcomputer can make the electric current through transistor base that third gear is arranged; the brightness of light emitting diode just has third gear like this, so the utility model can be arranged to best state to light with vision protection by the light modulation button.

Description of drawings

Fig. 1 is the lamp socket stereogram of embodiment;

Fig. 2 is the lamp socket three-dimensional exploded view of embodiment;

Fig. 3 is another visual angle stereogram of lamp socket of embodiment;

Fig. 4 is the circuit theory diagrams of embodiment;

The specific embodiment

With reference to figure 1, Fig. 2 and Fig. 3, embodiment discloses a kind of LED eye-protecting desk lamp, comprise lamp socket 1, the lampshade (not shown), battery, 26 light emitting diodes and control circuit thereof, described lamp socket 1 is linked to each other by four screw one with base 12 by the loam cake 11 that one links to each other, be provided with battery case in the base 12, battery promptly is located in the battery case, described base 12 is provided with a DC charging socket 121 and a USB charging socket 122, described DC charging socket 121 and USB charging socket 122 are electrically connected with battery respectively with convenient charging, lamp socket 1 is provided with coiled pipe 2, lampshade links to each other with lamp socket 1 one (perhaps described lampshade and lamp socket 1 directly one link to each other) by coiled pipe 2,25 light emitting diodes are divided into two groups, wherein one group is totally ten five of king lights (being L2 to L16), remaining one group is auxilliary totally ten on lamp (being L17 to L26), also having a night-light is L1, control circuit is located in the lamp socket 1, two groups of light emitting diodes and night-light are electrically connected with control circuit respectively, lamp socket 1 is provided with shift knob 111, light modulation button 112 and night-light button 113, be provided with brightness regulating apparatus between described control circuit and two groups of light emitting diodes, each button directly or indirectly is electrically connected the illumination condition that is used to control desk lamp with control circuit.

With reference to figure 4, the input of described control circuit is electrically connected with battery BAT, battery also is electrically connected with DC charging socket and USB charging socket simultaneously, the pin 8 of single-chip microcomputer U1,9,10 are electrically connected with the base stage of triode Q2 by regulating resistance respectively, 15 LED king lights (being L2 to L16) are connected in parallel in the colelctor electrode of triode Q2, the pin 1 of single-chip microcomputer U1,13,14 are electrically connected with the base stage of triode Q3 by regulating resistance respectively, ten auxilliary lamps (being L17 to L26) of LED are connected in parallel in the colelctor electrode of triode Q3, the pin 2 of being located at light modulation button 112 (being S1) the connection single-chip microcomputer U1 on the lamp socket 1 is used to control

8,9,10 and

1,13,14 output, the pin 5 of single-chip microcomputer U1 is connected with the output of voltage detecting pipe U2 simultaneously, the input of voltage detecting pipe U2 is connected with power supply, when supply voltage is lower than 2.7v, single-chip microcomputer U1 closes the signal output of king light, switch to auxilliary lamp illumination, the pin 7 of single-chip microcomputer U1 detects the voltage of USB socket simultaneously, when using USB socket to power, single-chip microcomputer U1 closes auxilliary lamp output, changes the king light illumination into.Simultaneously light modulation button 112 be arranged to click for the brightest, again click in bright, again click for low bright, click to closing again, described night-light button 113 is connected with the pin 3 of single-chip microcomputer U1, and the pin 12 of single-chip microcomputer U1 is used to control lighting of night-light L1 by triode Q1 and extinguishes.

Claims

1, a kind of LED eye-protecting desk lamp, comprise lamp socket, lampshade, battery, a plurality of light emitting diode and control circuit thereof, described lamp socket links to each other with the lampshade one, each light emitting diode is located in the lampshade, battery is located in the lamp socket, control circuit is located in lamp socket or the lampshade and its input is electrically connected with battery and each light emitting diode respectively with output, it is characterized in that: be provided with brightness regulating apparatus between described control circuit and each light emitting diode.

2, LED eye-protecting desk lamp according to claim 1, it is characterized in that: described brightness regulating apparatus comprises single-chip microcomputer, triode and light modulation button, described single-chip microcomputer is electrically connected with control circuit, each light emitting diode is connected in parallel in the colelctor electrode of triode, three outputs of described single-chip microcomputer are electrically connected with the base stage of triode respectively, and the light modulation button is located on the lamp socket and it is electrically connected with single-chip microcomputer and is used for three outputs that control single chip computer is connected with triode.

3, LED eye-protecting desk lamp according to claim 2, it is characterized in that: described brightness regulating apparatus also comprises an auxiliary triode, described single-chip microcomputer is provided with other three outputs, these three outputs are electrically connected with the base stage of auxiliary triode respectively, other one group of light emitting diode is connected in parallel in the colelctor electrode of auxiliary triode, and described light modulation button is used for three outputs that control single chip computer is connected with auxiliary triode simultaneously.

4, according to claim 1 or 2 or 3 described LED eye-protecting desk lamps, it is characterized in that: described lamp socket is provided with the DC charging socket, and described charging socket is electrically connected with battery.

5, according to claim 1 or 2 or 3 described LED eye-protecting desk lamps, it is characterized in that: described lamp socket is provided with the USB charging socket, and described USB charging socket is electrically connected with battery.