CN203068387U

CN203068387U - Automatically-dimmable LED table lamp

Info

Publication number: CN203068387U
Application number: CN2013200485304U
Authority: CN
Inventors: 胡陈力; 黄杰; 周盛华; 马浩宇; 钱宏昌; 李存鹏; 杨柳
Original assignee: China Jiliang University
Current assignee: China Jiliang University
Priority date: 2013-01-23
Filing date: 2013-01-23
Publication date: 2013-07-17
Anticipated expiration: 2023-01-23

Abstract

The utility model discloses an automatically-dimmable LED (Light Emitting Diode) table lamp which comprises a lamp holder, a support frame and an LED lamp body, wherein the LED lamp body comprises an LED lampshade and an LED array; eight photodiodes are arranged and distributed on the LED lampshade and are used for sensing the light intensity change of the external environment; and the LED lamp body is supported by the support frame, wherein the support frame comprises an LED lamp body support rod, a first horizontal rotation shaft, a second horizontal rotation shaft, a first vertical rotation shaft and a second vertical rotation shaft, and height and angle of the LED lamp body are adjustable. An optical control switch and a power switch are arranged on the lamp holder; and a battery charge and discharge module, a switch module and a singlechip microcomputer (SCM) control module are mounted inside the lamp holder, so that the charge-discharge function and the intelligent control are realized. The automatically-dimmable LED table lamp is high in sensitivity and convenient to use, and can effectively protect the vision of users.

Description

A kind of LED desk lamp that can be with an automatic light meter

Technical field

The utility model relates to a kind of LED desk lamp, especially relates to a kind of LED desk lamp that can be with an automatic light meter.

Background technology

Desk lamp mainly contains incandescent lamp desk lamp, fluorescent lamp desk lamp, LED desk lamp etc. in the market, and incandescent lamp desk lamp caloric value is big, power consumption, and the life-span is short; Fluorescent lamp desk lamp light source mainly comprises low frequency fluorescent lamp, high-frequency florescent lamp and DC fluorescent lamp, and low frequency flicker from fluorescent lighting phenomenon is serious, electromagnetic radiation and electromagnetic pollution that the concussion of high-frequency florescent lamp medium-high frequency can cause, and the DC fluorescent lamp technology difficulty is big, the cost height; And the used LED of LED desk lamp has energy-efficient, advantages such as optical efficiency is high, no stroboscopic, environmental protection come into one's own gradually, become following light source developing direction.

The LED desk lamp has fixedly light intensity or artificial two kinds of designs of light modulation basically, fixedly the light intensity that sets of the LED desk lamp of light intensity is single, when ambient light illumination is more weak, the luminous intensity of desk lamp can not grow, when ambient light illumination is strong, the luminous intensity of desk lamp can not die down, and the light that sends of LED desk lamp cross strong or cross a little less than all can increase the eyes burden; And artificial dimming LED (Light Emitting Diode) desk lamp has overcome the shortcoming that fixing light intensity LED desk lamp can not light modulation, but the LED desk lamp of artificial light modulation increased the people and be the light modulation burden, and is difficult to be adjusted to the suitableeest light intensity.

The light-operated LED desk lamp can effectively solve above-mentioned deficiency, but be 201120456952.6 as the patent No., patent name is a kind of Chinese utility model patent of desk lamp capable of automatic regulating brightness, this patent adopts a light sensor to respond to extraneous light intensity variation, but light sensor is responded to aspect effect, is difficult to environmental light intensity variation in comprehensive nernst cell; And this patent employing fixed support shelf structure, can't carry out adjustings such as height, angle to desk lamp.And for example the patent No. is 201220061243.6, patent name is the Chinese utility model patent of energy-conservation eyeshield lamp dimmer, used optical sensor is photo resistance, and photo resistance has the shortcomings such as influence of the illuminance that frequency response is relatively poor, be subjected to incident light time delay, is not suitable for the high accuracy light modulation and uses.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of LED desk lamp that can be with an automatic light meter, and according to the luminous intensity of indoor light intensity intelligence adjusting led array, and LED desk lamp lamp body can carry out height and angle adjustment; The battery charging and discharging module can make desk lamp under power free situation as emergency light, more intelligent, convenient.

In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of LED desk lamp that can be with an automatic light meter, comprise lamp socket (1), bracing frame and LED lamp body, the LED lamp body comprises LED lampshade (8) and led array, supported by bracing frame, LED lamp body inside comprises led array drive circuit, sensitization control circuit; LED lampshade (8) is gone up to distribute 8 photodiodes (701)-(708) is set, and photodiode (701)-(708) are connected with the sensitization control circuit; Bracing frame is positioned on the lamp socket (1), connect LED lamp body and lamp socket (1), bracing frame comprises LED lamp body support bar (9), first horizontal rotating shaft (501), second horizontal rotating shaft (502), the first vertical rotation axle (601) and the second vertical rotation axle (602); Bracing frame is fixed on the lamp socket (1) by lamp socket standard shaft (2); Lamp socket (1) is provided with light-operated switch (4), power switch (3), inside battery charging and discharging module, switch module and single chip control module is installed.

Described led array luminous flux is at 0-600 lumen continuous variable.

Described 8 photodiodes (701)-(708) are laid on the lampshade, on left and right, preceding four faces, each face is respectively laid two identical photodiodes, gathers the ambient light strength information.

Described bracing frame can serve as that axle rotates with first horizontal rotating shaft (501); Described LED lamp body can serve as that axle rotates with second horizontal rotating shaft (502).

Described LED lamp body support bar (9) can serve as that axle rotates with the first vertical rotation axle (601); Described second horizontal rotating shaft (502) can serve as that axle rotates with the second vertical rotation axle (602).

Described bracing frame is hollow-core construction, lays the lead that connects LED lamp body internal circuit and lamp socket (1) internal circuit.

The beneficial effects of the utility model are:

1.LED the bracing frame that lamp body adopts can be to angle, highly regulate, and can satisfy the requirement of different light direction and luminous range.

2. this desk lamp has used the battery charging and discharging module, can store certain electric energy, under the situation of outage, and sustainable the illumination.

3. this desk lamp adopts photodiode to change from 4 different directions induced environment light intensity, has effectively improved the sensitization precision.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and the embodiments.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is workflow block diagram of the present utility model.

Among the figure, 1 is lamp socket, and 2 is the lamp socket standard shaft, and 3 is power switch, 4 is light-operated switch, 501 is first horizontal rotating shaft, and 502 is second horizontal rotating shaft, and 601 is the first vertical rotation axle, 602 is the second vertical rotation axle, 701,702,703,704,705,706,707 and 708 is photodiode, and 8 is lampshade, and 9 is LED lamp body support bar.

The specific embodiment

Among Fig. 1, a kind of LED desk lamp that can be with an automatic light meter comprises lamp socket 1, bracing frame and LED lamp body, and the LED lamp body comprises LED lampshade 8 and led array, is supported by bracing frame, and LED lamp body inside comprises led array drive circuit, sensitization control circuit; Distributing on the LED lampshade 8 arranges 8 photodiode 701-708, and photodiode 701-708 is connected with the sensitization control circuit; Bracing frame is positioned on the lamp socket 1, connects LED lamp body and lamp socket 1, and bracing frame comprises LED lamp body support bar 9, first horizontal rotating shaft 501, second horizontal rotating shaft 502, the first vertical rotation axle 601 and the second vertical rotation axle 602; Bracing frame is fixed on the lamp socket 1 by lamp socket standard shaft 2; Lamp socket 1 is provided with light-operated switch 4, power switch 3, inside battery charging and discharging module, switch module and single chip control module is installed.

Among Fig. 2, it is strong that photosensitive two utmost point 701-708 pipe is gathered the desk lamp surrounding environment light, and output current to the sensitization control circuit, the sensitization control circuit is passed to single chip control module with signal, single chip control module is carried out computing with the signal that the sensitization control circuit passes over, and sending instruction according to operation result to led drive circuit, the control led drive circuit changes the led array luminous intensity; The battery charging and discharging module is not discharged under the situation that connects power supply, as the desk lamp power supply, continues to throw light under the situation that power supply disconnects.

This utility model workflow: when the external environment light intensity changes, photodiode 701-708 is converted into analog signal with environmental light intensity information and imports the sensitization control circuit into, the sensitization control circuit imports single chip control module into after with analog signal processing, single chip control module is carried out computing to the signal that the sensitization control circuit imports into, and send instruction according to operation result to led drive circuit, the control led drive circuit, regulate led array luminous intensity and environmental light intensity coupling, keep desk lamp that the suitableeest illumination light intensity is provided.

Claims

One kind can be with an automatic light meter the LED desk lamp, comprise lamp socket (1), bracing frame and LED lamp body, it is characterized in that described LED lamp body comprises LED lampshade (8) and led array, the LED lamp body is supported by bracing frame, and LED lamp body inside comprises led array drive circuit, sensitization control circuit; Described LED lampshade (8) is gone up to distribute 8 photodiodes (701-708) is set, and photodiode (701-708) is connected with the sensitization control circuit; Described bracing frame is positioned on the lamp socket (1), connect LED lamp body and lamp socket (1), bracing frame comprises LED lamp body support bar (9), first horizontal rotating shaft (501), second horizontal rotating shaft (502), the first vertical rotation axle (601) and the second vertical rotation axle (602); Bracing frame is fixed on the lamp socket (1) by lamp socket standard shaft (2); Described lamp socket (1) is provided with light-operated switch (4), power switch (3), and lamp socket (1) inside is equipped with battery charging and discharging module, switch module and single chip control module.
2. a kind of LED desk lamp that can be with an automatic light meter according to claim 1 is characterized in that described led array luminous flux is at 0-600 lumen continuous variable.
3. a kind of LED desk lamp that can be with an automatic light meter according to claim 1, it is characterized in that, described 8 photodiodes (701-708) are laid on the lampshade, on left and right, preceding four faces, each face is respectively laid two identical photodiodes, gathers the ambient light strength information.
4. a kind of LED desk lamp that can be with an automatic light meter according to claim 1 is characterized in that, described bracing frame can serve as that axle rotates with first horizontal rotating shaft (501); Described LED lamp body can serve as that axle rotates with second horizontal rotating shaft (502).
5. a kind of LED desk lamp that can be with an automatic light meter according to claim 1 is characterized in that, described LED lamp body support bar (9) can serve as that axle rotates with the first vertical rotation axle (601); Described second horizontal rotating shaft (502) can serve as that axle rotates with the second vertical rotation axle (602).
6. a kind of LED desk lamp that can be with an automatic light meter according to claim 1 is characterized in that described bracing frame is hollow-core construction, lays the lead that connects LED lamp body internal circuit and lamp socket (1) internal circuit.