CN201039516Y

CN201039516Y - A high-voltage direct supply LED road lamp

Info

Publication number: CN201039516Y
Application number: CNU2007200500262U
Authority: CN
Inventors: 樊邦弘
Original assignee: Heshan Lide Electronic Enterprise Co Ltd
Current assignee: Heshan Lide Electronic Enterprise Co Ltd
Priority date: 2007-04-04
Filing date: 2007-04-04
Publication date: 2008-03-19
Anticipated expiration: 2017-04-04

Abstract

The utility model discloses a high pressure direct electricity-supplying LED street lamp, comprising an LED lamp unit and a circuit for driving the LED lamp unit. The driving circuit comprises an anti-disturbance circuit, a commutating circuit and a filtering circuit. The LED lamp unit consists of LED lamp bulbs, thus, the pressure drop of each LED lamp bulb gained by decomposing the output pressure of the output end of the filtering circuit is equal to the rated pressure. Based on the structure and characteristics, the connecting structure of the utility model is simple without arranging other pressure-reducing circuits. The high pressure directly supplies electricity to LED lamps with intensive light, at the same time, the usage quantity of the elements and the cost are reduced.

Description

The LED street lamp that a kind of high pressure is directly powered

Affiliated technical field

The utility model relates to lighting, belongs to lighting technical field, especially relates to the directly LED street lamp of power supply of a kind of high pressure.

Background technology

Along with the development of LED technology, and the environmental protection that LED itself had, advantages such as volume is little, power consumption is few, long service life, be widely used in field of illuminating lamps.

At present, common LED street lamp behind power supply input High Level AC Voltage, needs through after the step-down of transformer or boosting, behind rectification circuit, filter circuit and voltage stabilizing circuit, alternating current could be converted to the LED bulb operate as normal in the galvanic current supply load circuit again.Yet, general volume of transformer is big, than great, and transformer all is to be formed by coil windings, when circuit comes into operation, being easy to generate electromagnetic interference to influence the operate as normal of other circuit like this, is again to be applied to the driving LED bulb simultaneously, its output voltage size is more fixing relatively, and magnitude of voltage is less.But in the actual life, many LED bulbs often need to adopt high-tension electricity to drive, and use a large amount of electronic circuits to export high voltage direct current, not only cause the syndeton complexity of circuit, the raising of production cost, and brought many inconveniences in the use for circuit.

In sum, with LED as the novel light-emitting source, especially be applied in the road lighting aspect, an important directions that has become present lighting field and developed, in order to make led light source better be widelyd popularize and to use in the road lighting field, the above-mentioned problem that faces certainly will will better be solved.

Summary of the invention

In view of this, the purpose of this utility model is in order to solve the above-mentioned problem that proposes, to provide a kind of circuit connection structure simple, and need not to be provided with in addition reduction voltage circuit, directly adopt high voltage supply to give the LED bulb, and the luminous intensity height, the LED street lamp that the high pressure that cost is low is directly powered.

To achieve these goals, the technical scheme that the utility model adopted is the directly LED street lamp of power supply of a kind of high pressure, it is characterized in that: this street lamp comprises the circuit of LED lamp group and driving LED lamp group, described drive circuit comprises anti-clutter circuit, rectification circuit and filter circuit, described LED lamp group is made up of the LED bulb, makes the pressure drop of output voltage decomposition on each LED bulb of filter circuit output equal its rated voltage separately.

Described LED lamp group is electrically connected in series by a plurality of LED bulbs.

Described LED lamp group is electrically connected by a plurality of LED bulb series block are in parallel.

Be connected with resistance in the described LED lamp group circuit.

Described resistance is adjustable resistor.

The utility model compared with prior art its beneficial effect is: the utility model is exported its alternating current order behind the filter circuit of anti-clutter circuit, the rectification circuit that receives interchange input and conversion output high voltage direct current and filtering pulsating waveform by the input power supply, export its high-voltage dc voltage and directly offer street lamp, to drive the LED bulb operate as normal in the street lamp, saved reduction voltage circuit has been set in addition, reduced the use amount of components and parts, reduced cost, also made circuit connection structure simple simultaneously; Again because in the real life, need the circuit application of high voltage drive LED bulb more, from practical value and future development, the utility model technology has not only broken through the shortcoming of prior art, also for to have opened up more vast market as light source with the LED bulb, the experiment proved that directly light with high voltage direct current driving LED bulb, its luminous intensity also is improved greatly and improves.

Description of drawings

Fig. 1 is a surface structure schematic diagram of the present utility model;

Fig. 2 is a circuit block diagram of the present utility model;

Fig. 3 is one of circuit theory diagrams embodiment of the present utility model;

Fig. 4 is two of circuit theory diagrams embodiment of the present utility model;

Fig. 5 is three of circuit theory diagrams embodiment of the present utility model;

Fig. 6 is four of circuit theory diagrams embodiment of the present utility model.

Embodiment

Is the function and benefit of further understanding architectural feature of the present utility model in depth and can reach, now enumerates specific embodiment, and detailed introduction of conjunction with figs. is described as follows:

The LED street lamp that a kind of high pressure is directly powered, as shown in Figure 1, this LED street lamp comprises that lamp stand 1, the base 2 that is connected with lamp stand 1 lower end, the support 4 that is connected with lamp stand 1 upper end, this support 4 are fixed on the upper end of lamp stand 1 and the lamp holder 5 that is connected with support 4 other ends by anchor clamps 3.

Above-mentioned LED street lamp also comprises the circuit of LED lamp group and driving LED lamp group, and wherein, LED lamp group is arranged in the lamp holder 5, and the circuit of driving LED lamp group is arranged on the circuit board, is installed in the lamp stand 1 inner or interior (not shown) of other control cabinet.

As shown in Figure 2, the circuit of described driving LED lamp group comprises input, anti-clutter circuit, rectification circuit, filter circuit and exports five parts.Wherein, by the High Level AC Voltage order of input through anti-clutter circuit, receive the filter circuit of the rectification circuit that exchanges input and conversion output high voltage direct current and filtering pulsating waveform after, export its high-voltage dc voltage and directly offer load circuit, to drive the LED bulb operate as normal in the load circuit.

Described LED lamp group is made up of the LED bulb, and makes the pressure drop of output voltage decomposition on each LED bulb of filter circuit output equal its rated voltage separately.

As shown in Figure 3, when input Ui=220V, output U0=220V, described LED lamp group is electrically connected in series by about 60 LED bulbs.By the High AC voltage of incoming line input 220V/50Hz, via the anti-clutter circuit 6 of fuse resistance F1, piezo-resistance RV1 and filter capacitor C1 composition.Wherein, after one end of described incoming line and fuse resistance F1 are connected in series, to guarantee that incoming line is not damaged under the situation of output short-circuit, and a piezo-resistance RV1 and a filter capacitor C1 be connected in parallel on the incoming line two ends, with of the impact of inhibition surge current to other circuit, and the filtering high-frequency harmonic.The ac input end of the rectification circuit 7 that the parallel connected end of described piezo-resistance RV1 and filter capacitor C1 is formed with the bridge rectifier D 1 that is made of four rectifier diodes respectively is connected, through rectified action, at the high-voltage dc voltage of the dc output end output ripple of its rectification circuit 7.This high-voltage dc voltage is exported a constant high pressure direct voltage and is supplied with LED series block 9 operate as normal that are composed in series by about 60 LED bulbs via electrochemical capacitor C2, filter capacitor C3 with after releasing the filter circuit 8 of energy resistance R 1 composition.

And for example shown in Figure 5, when input Ui=220V, output U0=220V, the in parallel electrical connection of series block that described LED lamp group is made up of about 60 LED bulbs, its drive principle is same as shown in Figure 3, no longer is repeated in this description herein.Sometimes for guarantee the LED bulb operate as normal, or the useful life of prolongation product, can on the circuit before first LED bulb of each LED bulb series block, connect an adjustable resistor R3, as Fig. 4 and shown in Figure 6, by regulating this adjustable resistor R3, can also control the bright Strength Changes of street lamp.

The preferred 220V/50Hz of the utility model is as input voltage, if when selecting 110V voltage, the connected mode of its drives principle and LED lamp group thereof is described identical with top specific embodiment, herein for standard, no longer repeat to set forth, unique difference is: half of number when the LED bulb that described LED lamp group need connect has only the 220V input voltage.

In sum, the utility model provides the directly LED street lamp of power supply of a kind of high pressure, through actual fabrication, finish and test repeatedly after, reached the desired purpose of the utility model, solved existing weak point in the prior art effectively.Yet, more than the specific embodiment of lifting only be that technical characterictic of the present utility model and technology contents are described in further detail, shown in accompanying drawing only for reference with the explanation usefulness, be not to be used for the utility model is limited.

Claims

1. LED street lamp that high pressure is directly powered, it is characterized in that: this street lamp comprises the circuit of LED lamp group and driving LED lamp group, described drive circuit comprises anti-clutter circuit, rectification circuit and filter circuit, described LED lamp group is made up of the LED bulb, makes the pressure drop of output voltage decomposition on each LED bulb of filter circuit output equal its rated voltage separately.

2. the LED street lamp that high pressure according to claim 1 is directly powered is characterized in that: described LED lamp group is electrically connected in series by a plurality of LED bulbs.

3. the LED street lamp that high pressure according to claim 1 is directly powered is characterized in that: described LED lamp group is electrically connected by a plurality of LED bulb series block are in parallel.

4. the LED street lamp of directly powering according to claim 2 or 3 described high pressure is characterized in that: be connected with resistance in the described LED lamp group circuit.

5. the LED street lamp that high pressure according to claim 4 is directly powered is characterized in that: described resistance is adjustable resistor.