CN202425091U - City LED spotlight - Google Patents

Abstract

The utility model discloses a city LED spotlight, comprising a power supply input terminal, a capacitor C1, a capacitor C2, a resistor R1, a resistor R2, a resistor R3, a rectification circuit and 38 LEDs with a round end angle of 20 DEGs connected in series. One end of the input terminal of the power supply is connected to the input terminal 1 of the rectification circuit through the resistor R1 and the capacitor C1 and the resistor R2 connected in parallel, and the other end of the input terminal of the power supply is connected to the input terminal 3 of the rectification circuit. The output terminal 2 of the rectification circuit is connected to the anode of the 38 LEDs with a round end angle of 20 DEGs connected in series through the resistor 3, the output terminal 4 of the rectification circuit is connected to the cathode of the 38 LEDs with a round end angle of 20 DEGs connected in series, and the 38 LEDs with a round end angle of 20 DEGs connected in series are connected to the capacitor C2 in parallel. According to the utility model, a 12 V transformer is unnecessary, material is saved, and installation is convenient.

Description

A kind of city LED shot-light

Technical field

The utility model relates to the lighting technical field, is specifically related to a kind of city LED (Light Emitting Diode, light-emitting diode) shot-light.

Background technology

Shot-light is typically not have king light, do not have the fixedly modern school illumination of scale, can build room lighting atmosphere, combines the light marvellous pattern that can change irregularly if arrange little shot-light with one.Because little shot-light can free translation-angle, the effect of combination lighting is also ever-changing.

Shot-light can be placed in around the furred ceiling or furniture top, also can place within the walls, in dado or the skirting.The light direct irradiation on the utensils implements that require emphasis, with outstanding subjective aesthetic effect, reach give prominence to the key points, environment uniqueness, levels are rich, strong, the in riotous profusion colorful artistic effect of atmosphere.Shot-light light is soft, and is elegant and poised, both can play a leading role to integral illumination, again can local daylighting, and heighten atmosphere.

Yet common shot-light is 12V, and adopts Halogen lamp LED more, and luminous efficiency is lower, relatively power consumption, illuminated ambient temperature are risen, useful life is short.

The utility model content

To above-mentioned defective, the utility model purpose is to have proposed a kind of city LED shot-light, and utilizing 38 round end angles is 20 ° LED light-emitting diode, adopts the power supply of 220V power supply, need not the 12V transformer, and saves material, and is easy for installation.

For realizing above-mentioned purpose, the utility model is realized through following technical scheme:

The utility model provides a kind of city LED shot-light, comprising: power input, capacitor C 1, capacitor C 2, resistance R 1, resistance R 2, resistance R 3, rectification circuit, and 38 round end angles of series connection be 20 ° light-emitting diode;

One end of said power input reaches the capacitor C 1 of parallel connection and the input 1 that resistance R 2 is connected to said rectification circuit through resistance R 1, and the other end of said power input is connected to the input 3 of said rectification circuit;

38 round end angles that the output 2 of said rectification circuit connects said series connection through resistance R 3 are that 20 ° light-emitting diode is anodal, and the 38 round end angles that the output 4 of said rectification circuit connects said series connection are 20 ° led powered negative pole;

38 round end angles of said series connection are that 20 ° light-emitting diode is parallelly connected with capacitor C 2.

Preferably, said rectification circuit is formed by connecting 4 diodes.

Preferably, said power input is electrically connected with the 220V city.

Compared with prior art, the utlity model has following beneficial effect:

A kind of city LED shot-light that the utility model provides all is far superior to the traditional lighting product on the aspect of principle of luminosity, energy-saving and environmental protection; Because this LED shot-light is that to use the high brightness angle be that 20 ° of round end diodes are light source, light efficiency height, little power consumption (have only 1W, common shot-light is 35W), long, easy to control, non-maintaining, safety and environmental protection of life-span.

Description of drawings

According to embodiment and accompanying drawing the utility model is done further explain below.

Fig. 1 is the circuit diagram of a kind of city LED shot-light of the utility model proposition.

Description of drawings:

Resistance R 1, resistance R 2, resistance R 3;

Capacitor C 1, capacitor C 2;

Diode IN4007;

The round end angle is 20 ° light-emitting diode D1-D38.

Embodiment

A kind of city LED shot-light that the utility model provides; Its operation principle is that the capacitive reactance that utilizes electric capacity under certain AC signal frequency, to produce limits maximum operating currenbt; According to these characteristics; Parallelly connected again resistance element on this electric capacity; Then the power consumption that produced with it of the resulting voltage in resistance element two ends depends on the characteristics of this resistance element fully, so capacitance decompression is actually and utilizes the capacitive reactance current limliting, and in fact electric capacity play the role of a restriction electric current and dynamic assignment capacitor and load voltage.

As shown in Figure 1, city LED shot-light comprises: power input, capacitor C 1, capacitor C 2, resistance R 1, resistance R 2;, resistance R 3, rectification circuit, and 38 round end angles be 20 ° light-emitting diode (D1 ...; D38); One end of power input reaches the capacitor C 1 of parallel connection and the input 1 that resistance R 2 is connected to rectification circuit through resistance R 1, and the other end of power input is connected to the input 3 of rectification circuit.It is that 20 ° light-emitting diode is anodal that the output 2 of rectification circuit connects the round end angles through resistance R 3, and it is 20 ° led powered negative pole that the output 4 of rectification circuit connects the round end angles; 38 round end angles be 20 ° light-emitting diode (D1 ..., D38) parallelly connected with capacitor C 2.The 220V civil power is a circuit supply by power input; At first pass through resistance R 1 current limliting, pass through capacitor C 1, resistance R 2 current limliting step-downs again, again by the rectification circuit rectification; Become direct current to the alternating current after the step-down; After reaching the round end angle and be 20 ° light-emitting diode required voltage electric current through resistance R 3 current limlitings again,, reach the round end angle and be the required direct voltage of 20 ° light-emitting diode to satisfy the service condition that the round end angle is 20 ° a light-emitting diode through capacitor C 2 filtering.

Wherein, resistance R 1, between the input 3 and power supply that capacitor C 1 and the resistance R 2 of parallel connection also can be connected to rectification circuit, it is between 20 ° the output 4 of light-emitting diode negative pole and rectification circuit that resistance R 3 also can connect the round end angle.

Wherein, rectification circuit is made up of for diode IN4007 4 models, and capacitor C 1 is a ceramic condenser, and capacitor C 2 is an electrochemical capacitor.

Wherein, the round end angle is that 20 ° LED light lamp head model is MR11, and input voltage is AC160-240V, and operating frequency is 50-60HZ, and product specification is (diameter 33mm * height 43mm), and power is 1W.

The utility model round end LED shot-light and the contrast of traditional shot-light have the following advantages:

1, effective conversion, reduce heating: the high heating of this round end LED shot-light optical efficiency is little, and 90% electric energy is converted into visible light.

2, quiet comfortable, do not have noise: this round end LED shot-light can not produce noise, is applicable to family, hotel, hotel and public place of entertainment etc.

3, light is soft, the protection eyes: this round end LED shot-light adopts AC power to drive no stroboscopic, vision protection.

4, do not have ultraviolet ray, do not have mosquito: this round end LED shot-light can not produce ultraviolet ray, therefore can not have a lot of mosquitoes to be centered around by the lamp source as traditional light fixture, and indoor meeting becomes, and clean hygiene is clean and tidy more.

5, long service life: this round end LED shot-light life-span is 10 times of conventional lights, can use for a long time and need not to change, and reduces labour cost, is more suitable in the occasion that is difficult to change.

6, firm firm, the permanent use: this round end LED shot-light body uses is ABS plastic and be not conventional glass, firmer firm.

7, energy saving: this round end LED shot-light is energy-efficient, and under the same brightness situation, the LED shot-light only consumed 1 degree electricity in 10000 hours, common 30 hours consumption 1 degree.

8, environmental protection, coefficient of safety are high: this round end LED shot-light not mercurous with harmful element such as lead, be beneficial to and reclaim and utilize, and can not produce electromagnetic interference, no potential safety hazard.

Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the realization of the utility model does not receive the restriction of aforesaid way; As long as adopted method design of the utility model and the various improvement that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all in the protection range of the utility model.

Claims (3)

1. a city LED shot-light is characterized in that, comprising: power input, capacitor C 1, capacitor C 2, resistance R 1, resistance R 2, resistance R 3, rectification circuit, and 38 round end angles of series connection be 20 ° light-emitting diode;

One end of said power input reaches the capacitor C 1 of parallel connection and the input 1 that electric capacity R2 is connected to said rectification circuit through resistance R 1, and the other end of said power input is connected to the input 3 of said rectification circuit;

38 round end angles that the output 2 of said rectification circuit connects said series connection through resistance R 3 are that 20 ° light-emitting diode is anodal, and the 38 round end angles that the output 4 of said rectification circuit connects said series connection are 20 ° led powered negative pole;

38 round end angles of said series connection are that 20 ° light-emitting diode is parallelly connected with capacitor C 2.

2. city as claimed in claim 1 LED shot-light is characterized in that said rectification circuit is formed by connecting 4 diodes.

3. city as claimed in claim 1 LED shot-light is characterized in that said power input is electrically connected with the 220V city.

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