CN102355765A

CN102355765A - High power factor and greatly energy-saving LED (light-emitting diode) lamp electronic circuit capable of directly rectifying by commercial power

Info

Publication number: CN102355765A
Application number: CN201110198022XA
Authority: CN
Inventors: 唐德中
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-15
Filing date: 2011-07-15
Publication date: 2012-02-15

Abstract

The invention discloses a greatly energy-saving low-price LED (light-emitting diode) lamp which is characterized by consisting eight parts, i.e. a lamp cap, a bridge rectifier, an automatic voltage regulating part, a power factor improving part, a high voltage or low voltage constant-current block, a lamp bulb string formed in a mode that dozens of LED lamp bulbs are connected in series, an overcurrent overvoltage protection part (which is not drawn in the figure), a lamp holder and the like. The LED energy-saving lamp can be used by being directly switched into a lamp holder of an original electric incandescent lamp or an energy-saving lamp through a conventional lamp cap. A civil illuminating lamp with the power of 1W to 40 W and a street lamp with the power of 50W to 200W can be manufactured.

Description

The direct rectification of civil power, the big energy-conservation LED lamp electronic circuit of High Power Factor

Technical field

The present invention relates to the direct rectification of civil power, High Power Factor, low reactive power, big energy-conservation illumination LED lamp electronic circuit;

Background technology

At present, the big direct current LED of low-voltage street lamp brings a high price, owing to use a plurality of LED lamp pearl core parallel connections, becomes the safe current of each LED wick in order to limit electric current, and each wick all uses current-limiting resistance, and with gold thread Chip-R is welded together.

It has only the transformer of use to realize low-voltage, big direct current, and needs the electrical network circuit modification of high cost simultaneously; Owing to use transformer and current-limiting resistance simultaneously; The luminous efficiency of electric energy only about 48%.Civil LED lighting lamp does not also have regular product.

And the LED lamp that the resistance-capacitance depressurization that trace sells is dodged in the market though realized tens lamp pearls series connection and little electric current, directly uses civil power, has cancelled transformer and current-limiting resistance, and price is cheap; But: its power factor is low on the one hand, and the actual use of lamp power has only ammeter to show 40% of power---and 50%; On the other hand, its reactive power (ammeter does not show) reaches ammeter and shows 40% of power---and 200%, the power plant can not receive the expense of reactive power, and reactive power has taken the transmission power of electrical network in large quantities; So the trace of only dodging is sold, the extensive use forbidden.

Find a kind of more energy-conservation, the high and low reactive power of power factor, can use the series connection of tens lamp pearls and little electric current, directly use civil power, cancelled transformer and current-limiting resistance, the LED lamp that price is cheap, the LED lamp dreamed of of people just.

Summary of the invention

The purpose of this invention is to provide a kind of more energy-conservation, that power factor is high and low or that almost do not have reactive power, can use tens---the series connection of hundreds of lamp pearls and little electric current; Low price, directly use civil power; Transformer and current-limiting resistance have been cancelled, the LED lamp that price is cheap.

For realizing above-mentioned purpose, the present invention takes following scheme:

1. utilize the direct rectification in city, invention high pressure or low pressure constant current piece, constant current protection LED lamp pearl; When certain or a plurality of lamp pearl short circuit, the electric current on the lamp pearl has only faint variation, big current direction lamp pearl can not occur, effectively guard lamp pearl safety.Save the transformer of active service LED lamp, practice thrift the energy loss 10% of transformer.

2. save the current-limiting resistance of each lamp pearl of active service LED lamp, saves energy loss 45%---50%.

3. utilize the scientific combination of inductive element and capacitive element, can make power factor reach 85%---98%.Make the lamp gross efficiency very high.

5. utilize the big electric capacity of high pressure to absorb the electric current and voltage that impacts fluctuation.

6. parallel connection one big resistance between the both positive and negative polarity prevents open circuit.

7. when lamp during by frequent Push And Release operation, or certain or a plurality of lamp pearl be when opening circuit, and big electric capacity and constant current piece play automatic adjustment voltage jointly to required voltage; Play the effect of burning voltage and electric current.

8. use the porous Lamp cup, be beneficial to heat radiation of electrical apparatus;

9. use dozens of---hundreds of LED lamp pearl polyphones, it is easy to draw materials, so cost is very low, sale price is almost suitable with electricity-saving lamp.

Advantage of the present invention is: the power consumption of lamp is practiced thrift appliance material equipment and the project cost of transforming former electrical network circuit simultaneously greatly than energy-conservation again 50% (1 and 2 addition) of active service low-voltage and high-current LED lamp.It also has cheap advantage.The luminous efficiency of electric energy is expected to reach more than 70%.

Energy-conservation quantity:

1. it will make the illumination power consumption reduce significantly, brings the primary energy revolution;

2. it will practice thrift very big illumination power consumption---and practice thrift 50% than active service low-voltage and high-current LED lamp power consumption, be equivalent to and built no small new forms of energy facility; Thereby for certain contribution is made by society.

3. what energy-efficient and low-cost LED lamp was simple rough calculates (for reference) by most inefficient:

1). utilize the transformer that saves active service LED lamp that the present invention relates to, practice thrift the energy loss 10% of transformer;

2). utilize the cheap high pressure or the low pressure constant current piece of invention, over-voltage over-current protection LED lamp pearl; The cancellation current-limiting resistance, (such as the 4V dc-battery, LED lamp pearl needs 3.3V voltage to the energy loss that the current-limiting resistance of saving active service LED lamp consumes, and current-limiting resistance should produce voltage and reduce to 0.7V, and the two electric current is identical more than 40%; So current-limiting resistance loss electric energy is 0.7V/4V=17.5%; Because of its too many LED lamp pearl core parallel connection, electric current is too big, generally need not.And 12V---48V dc-battery, each LED lamp pearl core needs 3.3V voltage, and current-limiting resistance should produce voltage and reduce to 2.7V, and the two electric current is identical; So current-limiting resistance loss electric energy is 2.7V/6V=45%; This is the main method for using of present LED);

3). amount to 1) with 2), the present invention is than active service low-voltage and high-current LED lamp saves energy 50% again---and 55%;

4). except that 1-2, also practice thrift the full payment of active service LED lamp electric network reconstruction.

5). except that 3-4, also practice thrift the full payment of the active service circuit modification of family.

6) owing to use little current design, newly-built lighting mains can use the little electric wire of little cable, and construction cost is practiced thrift significantly.(can use the microswitch of the thin electric wire of little cable etc.)

7) little electric current has also brought the safer of electricity consumption.(reduce 80% than incandescent lamp electric current---90%, reduce 50% than electricity-saving lamp---60%)

Description of drawings

Fig. 1 is the direct rectification high voltage and constant current signal of civil power of the present invention

The direct rectification low pressure of Fig. 2 civil power of the present invention constant current signal

Fig. 3 is high voltage and constant current block protection signal of the present invention

Embodiment

Like Fig. 1, Fig. 2, shown in Figure 3; The present invention is by lamp holder, bridge rectifier, automatic Regulation, raising power factor, high pressure or low pressure constant current piece, tens---and the lamp pearl string of hundreds of LED lamp pearl series connection, over-current over-voltage protection (not drawing among the figure) totally seven parts is formed the LED lamp.This LED electricity-saving lamp directly can use through the lamp socket that conventional lamp holder inserts former incandescent lamp or electricity-saving lamp.---40W domestic lighting lamp and 50W---the 200W street lamp of can making 1W.

Practical implementation:

A LED lamp; Use alternating-current switch; 0.1A protective tube or recover protective tube certainly; Four diode bridge rectifications; The electrotechnics formula calculates LC and cooperates raising power factor to 90%---and 99%; Direct current voltage reulation 140V-300V, high pressure or low pressure constant current 15mA---20mA, 40 of back serial connections---200 LED lamp pearls.

Materials used:, realize cost cheap as far as possible (such as low pressure constant current part, the material valency is controlled at 1.5 yuan) as far as possible with low current, middlebrow electric component; Thereby realize that price is cheap.

Claims

1. cheap LED lamp than the low-voltage and high-current LED lamp energy-conservation again 50% that uses transformer; It is characterized in that: by lamp holder, bridge rectifier part, the lamp pearl string that improves power factor part, automatic Regulation part, high pressure or low pressure constant current piece, tens LED lamp pearl series connection, over-current over-voltage protection (not drawing among the figure), lamp socket etc., totally eight parts are formed the LED lamp; This LED electricity-saving lamp directly can use through the lamp socket that conventional lamp holder inserts former incandescent lamp or electricity-saving lamp;---40W domestic lighting lamp and 50W---the 200W street lamp of can making 1W.

2. according to claim 1, it is characterized in that: the transformer of high pressure after the direct rectification of described civil power or current limiting low-voltage, replacement active service LED lamp.

3. according to claim 1, it is characterized in that: described high pressure or low pressure constant current piece and over-voltage over-current protection element are protected LED lamp pearl string jointly; The current-limiting resistance of cancellation limit active service LED lamp.

4. according to claim 1, it is characterized in that: described tens---200 each and every one series LED lamp pearls are gone here and there, and have realized little electric current.

5. conspectus Fig. 1 only is signal to Fig. 3; The design of the line map of various power, various forms or different shape; As long as used high pressure or current limiting low-voltage after the direct rectification of civil power; As long as used LC of the present invention to improve the power factor method,, all belonged to scope of the present invention as long as used automatic voltage regulating system of the present invention.

6. cancellation high pressure or low pressure constant current piece can be made the LED lamp of low current low-light level.

7. according to claim 1, it is characterized in that: the 2-6 of claim is unified whole, uses wherein one, promptly has been to use whole patent of the present invention.