CN201072063Y

CN201072063Y - Intermittent LED luminous power supply device

Info

Publication number: CN201072063Y
Application number: CNU2007200457169U
Authority: CN
Inventors: 林作英
Original assignee: QUANWU ELECTRIC APPLIANCE SWITCH CO Ltd NANJING
Current assignee: QUANWU ELECTRIC APPLIANCE SWITCH CO Ltd NANJING
Priority date: 2007-08-31
Filing date: 2007-08-31
Publication date: 2008-06-11
Anticipated expiration: 2017-08-31

Abstract

The utility model relates to an intermittent type LED lamp luminescent power supplying device. The utility model adopts the structure that an impulse power generator is connected on a power circuit, and the output of the impulse power generator is connected with the LED lamp. The utility model solves the existing defect that when the temperature reaches 100 degrees, the service life of the utility model sharply drops, and the flashing damage to the eyes of the people is simultaneously avoided. The utility model utilizes the impulse waveform generated by the impulse power generator to connect the LED when a peak value is reached, to disconnect the LED when the valley value is reached, and to ensure the LED to radiate intermittently, the heat convergence generated by the unintermitted irradiance of the LED lamp is effectively avoided, the heat generating time is greatly shorten, the heat is reduced, thereby to ensure the utility model to always work within the scope of the 60 to 80 DEG C, and the service of the utility model is greatly prolonged. The structure of the utility model is simple, and the cost is low.

Description

Batch (-type) LED luminous power device

Technical field

The utility model relates to a kind of LED lamp electric light source, particularly a kind of batch (-type) LED lamp luminous power device.

Background technology

Before the present utility model, LED can be used for throwing light on, and extensive use.LED utilizes wherein light-emitting phosphor, and power supply is about 20mA usually.And LED will inevitably cause heating when luminous, will influence the life-span of fluorescent material under the situation of heating, and the normal serviceability temperature of fluorescent material should be lower than 100 ℃.Provided the fluorescent material service life curve map of LED under different temperatures among Fig. 1.By among Fig. 1 as can be known, when temperature reached 100 ℃, its life-span sharply descended, and had only usually about 2500 hours; When temperature reached 80 ℃, the life-span had about 5000 hours usually; When temperature during at 60 ℃, its life-span can reach more than 10000 hours.Yet, reduce temperature and must reduce the electric current that passes through, and reduce the illumination effect that electric current can influence LED.Therefore, the LED life-span has relatively shortly also restricted its application as electric light source.

Summary of the invention

The purpose of this utility model just is to overcome above-mentioned defective, design, a kind of batch (-type) LED lamp luminous power device of development.

The technical solution of the utility model is:

Batch (-type) LED luminous power device, its major technique are characterised in that and connect a pulse power generator on the power circuit that its output connects the lamp with LED.

Advantage of the present utility model and effect are the impulse waveform of utilizing pulse power generator to send, when peak value, connect LED, when the lowest point, disconnect LED, make the LED batch (-type) luminous, effectively avoid the uninterrupted luminous heat that produces of LED to gather, shortened fever time greatly, reduced heat, thereby make in its scope that always is operated in 60～80 ℃, prolong its service life greatly.Simultaneously, pulse power generator is selected 100～200Hz frequency, is not influencing the flicker of effectively having avoided LED on the LED luminous efficiency basis.The utility model is simple in structure, cost is low.

Description of drawings

Fig. 1---the LED schematic diagram of decaying the service life under different temperatures.

Fig. 2---the utility model electronic circuit principle schematic.

The square-wave waveform figure that Fig. 3---pulse power generator produces.

The specific embodiment

As Fig. 2, shown in Figure 3, storage battery 1 power supply adopts 3～24 volts of direct currents, is connected to pulse power generator 3 through switch 2, and 3 outputs of pulse power generator are connected to LED 4 (light emitting diode), and pulse power generator 3 is selected 100～200Hz frequency.

During use, storage battery 1 carry power supply through switch 2 to pulse power generator 3, pulse power generator 3 output square-wave pulses are given LED 4, LED 4 is luminous, because pulse is when peak value (high position), LED 4 connects luminous, pulse is in the lowest point when (low level), LED 4 disconnects, not luminous, because pulse is to select 100～200Hz frequency, this switching is that people's naked eyes are imperceptible again, thereby avoid LED 4 is easily heating and cause short defective of life-span under the alive situation always, and selects 100～200Hz frequency can avoid the infringement of the flicker of LED 4 to people's eyes.

Claims

1. batch (-type) LED luminous power device is characterized in that connecting a pulse power generator on the power circuit, and its output connects the lamp with LED.

2. batch (-type) LED luminous power device according to claim 1 is characterized in that the frequency of pulse power generator is selected 100～200Hz.