CN2624578Y

CN2624578Y - AC-DC dual-purpose LED lamp

Info

Publication number: CN2624578Y
Application number: CN 03235300
Authority: CN
Inventors: 夏志清
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-21
Filing date: 2003-01-21
Publication date: 2004-07-07
Anticipated expiration: 2013-01-21

Abstract

The utility model discloses a double-current LED, relating to a LED lamp, more particularly, a LED electrical rejoining method. The LED is formed into the bridge circuit via the utility model and then directly connected with the double current power source, so that the LED could be used for dual-purpose which are both rectifying and lighting. The base unit of the utility model is composed of 5 LEDs, among which the first LED, the second LED, the third LED and Fourth LD form the rectifying bridge circuit, while the output end of the bridge circuit is connected with the fifth LED. These five LED chips and the circuit board hereof are sealed and packaged in a transparent cover; the input ends of the bridge circuit are welded on the above circuit board and used as two wiring feet which are placed outside the cover for connecting with the double current power source. The base unit is the base of for the LED various sizes. The utility model has advantage of simple structure. So, only electrical continuity of LED is changed, thus the double current transfer device is not needed, so as to facilitate the operation, lower the cost greatly and reduce the size.

Description

A kind of LED lamp of AC/DC

Technical field

The utility model relates to a kind of LED lamp, specifically, relates to the electric connection of LED.

Background technology

LED (solid light source light-emitting diode) be the 4th generation light source.Along with the exploitation of luminescent material and the improvement of semiconductor fabrication process, the light efficiency of LED is improved rapidly, but fast, the good directionality of little, the vibration resistance of its volume, response speed, life-span reach tens thousand of hours low-voltage driving, photochromic pollution near incandescent light color, no mercury and lead in addition, will become the energy-efficient light source of replace incandescent and fluorescent lamp.Because single LED power is little, brightness is low, should not use separately, a plurality of LED must be fitted together to be designed to practical LED lamp for this reason, then has broad application prospects.At present the big company in the world is all at the LED lamp of exploitation different application scope and description.In view of LED a kind ofly imposes forward current at semiconductor p-N knot place and sends the light emitting semiconductor device of visible light, infrared light, ultraviolet light, so all LED and all LED lamps thereof at present, its driving power is DC power supply.

And the electricity consumption of incandescent lamp and fluorescent lamp etc. or be AC power or is a DC power supply, and is apparent, use the LED lamp instead after, at first alternating current must be converted to direct current, again the LED lamp is connected with DC power supply.So, owing to added DC-AC conversion device, make LED lamp cost raise, it is big that volume becomes, and it is applied and will be restricted.

Summary of the invention

The purpose of this utility model is exactly to overcome the problems referred to above and the deficiency that prior art exists, and a kind of LED lamp of AC/DC is provided.Require it simple in structure, cost is low, and volume is little.

The purpose of this utility model is achieved in that soon LED directly is connected with power of alterating and direct current after forming bridge circuit, makes LED one pipe dual-purpose: both to make rectification usefulness, and done illumination again and use.

As shown in Figure 1, the utility model elementary cell 1 is made up of 5 LED, and wherein the 1st, 2,3,4 LED forms the rectification bridge circuit, and the output of bridge circuit is connected with the 5th LED, and these 5 led chips and circuit board thereof all are encapsulated in the transparent cover body; The input of bridge circuit is welded on the foregoing circuit plate and as two leg and is placed in outside the cover body, for be connected usefulness with power of alterating and direct current.This elementary cell is to form the basis of different model specification LED lamp.

Above-mentioned elementary cell can be formed the series of products of various different size models, satisfies the various needs of people.

The utility model compared with prior art has the following advantages and good effect:

1. simple in structure, just conversion the electric connecting mode of LED, just removed additional DC-AC conversion device from, implement easily.

2. cost reduces significantly.

3. volume reduces.

Description of drawings

Fig. 1 is the utility model basic element circuit figure;

Fig. 2 is the utility model tandem compound element circuit figure;

Fig. 3 is the additional transforming circuit figure of the utility model.

Wherein:

The 1-LED elementary cell;

2-LED tandem compound unit;

E-exchanges or DC power supply;

D-LED；

The B-transformer;

The U1-input voltage;

The U2-output voltage.

Embodiment

Further specify below in conjunction with drawings and Examples.

1, as shown in Figure 2, the utility model tandem compound unit 2 is made up of n LED, wherein the 1st, 2,3,4 LED forms the rectification bridge circuit, and the output of bridge circuit is connected to n LED with the 5th, and this n led chip and circuit board thereof all are encapsulated in the transparent cover body; The input of bridge circuit is welded on the foregoing circuit plate and as two leg and is placed in outside the cover body, for be connected usefulness with power of alterating and direct current.

2, utilize elementary cell, tandem compound unit can produce the series of products of all size kind.

2, in actual applications, usually need different AC power, this can solve by additional transforming circuit.As shown in Figure 3, additional transforming circuit is: its input of transformer B (U1) is connected with AC power, and its output (U2) is connected with input of the present utility model.

3, in actual applications, can select above-mentioned relevant series of products, carry out permutation and combination, or series connection; Or it is in parallel; Or connection in series-parallel.

Claims

1, a kind of LED lamp of AC/DC is made up of LED; It is characterized in that:

Elementary cell (1) is made up of 5 LED, and wherein the 1st, 2,3,4 LED forms the rectification bridge circuit, and the output of bridge circuit is connected with the 5th LED, and these 5 led chips and circuit board thereof all are encapsulated in the transparent cover body; The input of bridge circuit is welded on the foregoing circuit plate and as two leg and is placed in outside the cover body, for be connected usefulness with power of alterating and direct current.

2, press the LED lamp of the described a kind of AC/DC of claim 1, it is characterized in that: tandem compound unit (2) are made up of n LED, wherein the 1st, 2,3,4 LED forms the rectification bridge circuit, the output of bridge circuit is connected to n LED with the 5th, and this n led chip and circuit board thereof all are encapsulated in the transparent cover body; The input of bridge circuit is welded on the foregoing circuit plate and as two leg and is placed in outside the cover body, for be connected usefulness with power of alterating and direct current.