CN103687250A

CN103687250A - Alternating-current (AC) LED (Light Emitting Diode) energy-saving delay lamp

Info

Publication number: CN103687250A
Application number: CN201410005210.XA
Authority: CN
Inventors: 吴建堂
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-06
Filing date: 2014-01-06
Publication date: 2014-03-26

Abstract

The invention relates to an alternating-current (AC) LED (Light Emitting Diode) energy-saving delay lamp. The AC LED energy-saving delay lamp is characterized by comprising a 220V AC power supply, a full-bridge rectification circuit, a delay trigger and silicon-controlled rectifier (SCR) control circuit, LEDs and a power supply circuit thereof, wherein in the full-bridge rectification circuit, one end of an AC input terminal of a full-bridge rectification element QZ is connected with one end of a primary coil L1 of a power supply transformer B, the other end of the AC input terminal of the full-bridge rectification element QZ is connected with a null line terminal N of the 220V AC power supply, and a direct-current (DC) output terminal of the full-bridge rectification element QZ is connected with the delay trigger and SCR control circuit; the delay trigger and unidirectional thyristor control circuit consists of a SCR, a resistor R1, an electrolytic capacitor C1, an isolating diode D1 and a key switch AN, and the LEDs and the power supply circuit thereof consist of the power supply transformer B and eight LEDs (LED 1 to LED 8). The power consumption of the AC LED energy-saving delay lamp in a year is only 2KWh and is only 1/18 that of an ordinary energy-saving lamp.

Description

Alternating current LED energy-saving delay-action lamp

Technical field

The invention belongs to lighting electronic and power-saving technique field, relate to a kind of alternating current LED energy-saving delay-action lamp.

Background technology

With common energy-saving lamp as aisle illuminating lamp or street lamp, for example: use minimum power 8W common energy-saving lamp, take and on average light 12 hours night every day as example, within 1 year, power consumption is: (8W * 12h) * 365 day=35KWh, that is: within 1 year, power consumption is: 35 degree.

If aisle illuminating lamp or street lamp use alternating current LED energy-saving delay-action lamp, take and on average light 12 hours night every day as example, 1 year power consumption: (22mA * 10V * 2 group LED=0.44W) * 12h/ days * 365 days ≈ 1.9KWh, that is: 1 year power consumption approximately: 2.0 degree.As can be seen here: alternating current LED energy-saving delay-action lamp power consumption of the present invention only has 1/18 of common energy-saving lamp, and power savings is very obvious.

The circuit of alternating current LED energy-saving delay-action lamp is all used common components and parts to make, and cost of manufacture less than ten yuans are suitable for factory and carry out batch exploitation.

Below describe alternating current LED energy-saving delay-action lamp of the present invention related relevant technologies content in implementation process in detail.

Summary of the invention

Goal of the invention and beneficial effect: use minimum power 8W common energy-saving lamp, take and on average light 12 hours night every day as example, within 1 year, power consumption is: (8W * 12h) * 365 day=35KWh, that is: within 1 year, power consumption is: 35 degree.If aisle illuminating lamp or street lamp use alternating current LED energy-saving delay-action lamp, take and on average light 12 hours night every day as example, 1 year power consumption: (22mA * 10V * 2 group LED=0.44W) * 12h/ days * 365 days ≈ 1.9KWh, that is: power consumption was about in 1 year: 2.0 degree.As can be seen here: alternating current LED energy-saving delay-action lamp power consumption of the present invention only has 1/18 of common energy-saving lamp.

Circuit working principle: alternating current LED energy-saving delay-action lamp is welded with 7 elements and 8 ￠ 5mm white high brightness LEDs.Click key switch AN, 220V alternating current is by primary coil L1, bridge rectifier element QZ, the isolating diode D1 of power transformer B, to electrochemical capacitor C1 quick charge, through current-limiting resistance R1, to the control utmost point of unidirectional controllable silicon S CR, input trigger current simultaneously, make unidirectional controllable silicon S CR conducting, at this moment power transformer B secondary coil L2 output 10V alternating current is lighted 8 LED 1～LED8.When key switch AN disconnects, electrochemical capacitor C1 starts electric discharge, unidirectional controllable silicon S CR continues conducting, after time delay a period of time, voltage drop on electrochemical capacitor C1 is to can not maintain unidirectional controllable silicon S CR conducting time, and when 220V alternating current zero passage, unidirectional controllable silicon S CR turn-offs, and the power supply of power transformer B is cut off, 8 LED 1～LED8 extinguish, now no longer power consumption of circuit itself.8 LED 1～LED8 continue the time of lighting, and by the parameter of capacitor C 1 and resistance R 1, are determined.

8 LED 1～LED8 are fully operational in alternating current circuit, because alternating current has positive half cycle and negative half period, so LED 1～LED8 is divided into two groups, every group 4 series connection mutually, then after two groups of parallel connections, be connected in the circuit of 10V alternating current, the 1st group of forward connects, and the 2nd group oppositely connects.When the positive half cycle of 10V alternating current, the 1st group of LED 1～LED4 conducting lighted, and when 10V alternating current negative half period, the 2nd group of LED 5～LED8 conducting lighted.Two groups of light-emitting diodes in turn conducting are lighted and are conducive to heat radiation, and are conducive to again increase light-emitting diode useful life.Because light-emitting diode has twilight sunset effect, so cannot see light-emitting flash phenomenon.

Technical scheme: alternating current LED energy-saving delay-action lamp, it comprises 220V alternating current, full bridge rectifier, Time delay and one-way SCR control circuit, light-emitting diode and current supply circuit thereof, it is characterized in that:

Full bridge rectifier: one end of a termination power transformer B primary coil L1 of full-bridge rectification element QZ alternating current input, the zero line side N of another termination 220V AC power of full-bridge rectification element QZ alternating current input, full-bridge rectification element QZ DC output end connects Time delay and one-way SCR control circuit;

Time delay and one-way SCR control circuit: it is by unidirectional controllable silicon S CR, resistance R 1, electrochemical capacitor C1, isolating diode D1 and key switch AN form, the control utmost point of unidirectional controllable silicon S CR connects one end of positive pole and the key switch AN of electrochemical capacitor C1 by resistance R 1, the negative pole of another termination isolating diode D1 of key switch AN, the anodal order of isolating diode D1 is to anode and the full-bridge rectification element QZ direct current cathode output end of controllable silicon SCR, the order of full-bridge rectification element QZ direct current cathode output end is to the negative electrode of controllable silicon SCR and the negative pole of electrochemical capacitor C1,

Light-emitting diode and current supply circuit thereof: it is comprised of power transformer B and 8 LED 1～LED8, first group of LED 1～LED4 contacts mutually, second group of LED 5～LED8 contacts mutually, the positive pole of the negative pole of LED 1 and LED 5 connects one end of power transformer B secondary coil L2, the negative pole of the positive pole of LED 4 and LED 8 connects the other end of power transformer B secondary coil L2, the live wire end L of another termination 220V AC power of power transformer B primary coil L1.

Accompanying drawing explanation

Accompanying drawing is embodiment circuit working schematic diagram of alternating current LED energy-saving delay-action lamp provided by the invention.

Embodiment

According to alternating current LED energy-saving delay-action circuit for lamp fundamental diagram shown in the drawings and accompanying drawing explanation, and according to annexation between components and parts in the each several part circuit described in summary of the invention, and the components and parts technical parameter described in execution mode requires and circuit production main points are implemented to realize the present invention, below in conjunction with embodiment, correlation technique of the present invention is further described.

The selection of components and parts and technical parameter thereof

B is power transformer, and parameter is that 220V/12V, power are 1.5W;

QZ full-bridge rectification element, its technical parameter is 1A/400V;

D1 is isolating diode, selects silicon rectifier diode, and model is 1N4007;

SCR one-way SCR, requiring parameter is 1A/400V;

The resistance of resistance R 1 is 1.5M Ω;

The capacity of electrochemical capacitor C1 is 100 μ F/25V;

LED1～LED8 is light-emitting diode, selects the white light high brightness LED that 8 ￠ 5mm, rated operational current are 22mA.

Circuit production main points and circuit debugging

Because of the circuit structure of alternating current LED energy-saving delay-action lamp fairly simple, comparison is easy, as long as the electronic devices and components performance of generally selecting is intact, and the components and parts annexation in accompanying drawing is welded to specifications, physical connection line and welding quality are after careful inspection is correct, and circuit of the present invention does not substantially need to carry out any debugging and can normally work;

The electrochemical capacitor C1 recommending according to embodiment and the parameter of resistance R 1, the about time delay of alternating current LED energy-saving delay-action lamp 4 minutes, when electrochemical capacitor C1 is changed into capacity 220 μ F, circuit delay can reach 9 minutes.

Claims

1. an alternating current LED energy-saving delay-action lamp, it comprises 220V alternating current, full bridge rectifier, Time delay and one-way SCR control circuit, light-emitting diode and current supply circuit thereof, it is characterized in that:

In described full bridge rectifier, one end of one termination power transformer B primary coil L1 of full-bridge rectification element QZ alternating current input, the zero line side N of another termination 220V AC power of full-bridge rectification element QZ alternating current input, full-bridge rectification element QZ DC output end connects Time delay and one-way SCR control circuit;

Described Time delay and one-way SCR control circuit are by unidirectional controllable silicon S CR, resistance R 1, electrochemical capacitor C1, isolating diode D1 and key switch AN form, the control utmost point of unidirectional controllable silicon S CR connects one end of positive pole and the key switch AN of electrochemical capacitor C1 by resistance R 1, the negative pole of another termination isolating diode D1 of key switch AN, the anodal order of isolating diode D1 is to anode and the full-bridge rectification element QZ direct current cathode output end of controllable silicon SCR, the order of full-bridge rectification element QZ direct current cathode output end is to the negative electrode of controllable silicon SCR and the negative pole of electrochemical capacitor C1,

Described light-emitting diode and current supply circuit thereof are comprised of power transformer B and 8 LED 1～LED8, first group of LED 1～LED4 contacts mutually, second group of LED 5～LED8 contacts mutually, the positive pole of the negative pole of LED 1 and LED 5 connects one end of power transformer B secondary coil L2, the negative pole of the positive pole of LED 4 and LED 8 connects the other end of power transformer B secondary coil L2, the live wire end L of another termination 220V AC power of power transformer B primary coil L1.