CN203036532U - A kind of LED solar garden light - Google Patents

Abstract

An LED solar garden lamp comprises a glass lampshade, a brightness enhancement film, a light guide plate, reflective paper, a light source cavity, a solar cell panel, a lamp shell, an LED and a circuit board. The LED is combined with the circuit board to form an LED lamp panel which is arranged on two sides of the light guide plate; a light guide type light emitting device consisting of an LED lamp panel and a light guide plate is arranged in the light source cavity; reflective paper is pasted on the non-light-emitting sides of the light guide plate and the LED lamp panel; the inner side of the glass lampshade is stuck with a brightness enhancement film, and the glass lampshade is fixed on the lamp shell to form a sealed light source cavity. The utility model has the advantages of reasonable light distribution, low glare, low light pollution, novel and light structure, electricity saving, environmental protection, convenient installation and maintenance, beautiful and simple appearance, low cost and the like.

Description

A kind of LED solar garden light

technical field

The utility model relates to a courtyard lamp, in particular to an LED solar garden lamp.

Background technique

With the rapid development of society, more and more LED lamps have come into our sight, all kinds of LED lamps show us a modern atmosphere. Compared with traditional lighting fixtures, new LED lighting fixtures have obvious advantages: In terms of lifespan, LEDs have a lifespan of up to 50,000 hours, which is incomparable to traditional light sources. In addition, from the perspective of its environmental protection, energy saving, and many derivative products, the market space for LED lamps is huge. At present, most of the garden lights on the market are traditional high-pressure sodium lamps and metal halide lamps. Most of the traditional garden lights use a bulky lamp housing and a light bulb. The high power makes it difficult to combine with solar panels to form good economic benefits. Flexible Design and more than 50% power saving rate make LED will become the technical development trend of garden lights; LED garden lights also exist in the market at present, but most of them cannot meet the actual application requirements in terms of light distribution and glare control, and are not compatible with solar panels. The combinations are all single and rigid, and the application range is narrow.

In order to achieve low power consumption and long life, the patent CN102367928 proposes a fast heat dissipation LED garden light, which solves the heat dissipation problem of LEDs, but the disadvantage of this kind of garden light is that it does not solve the light distribution. It is wasteful, and it will cause light pollution to the environment that does not need light, and it will also produce strong glare.

In order to combine solar energy with LED technology, CN102338341 uses solar panels to supply power to lamps, but the lamps are bulky and heavy in appearance, and the solar panels and lamps are separated and installed on light poles respectively, so the structure is complicated.

Contents of the invention

The utility model solves a number of defects in the current technology, maintains the advantages of long life and high light efficiency of the LED, adopts a new technical solution in reducing light pollution and anti-glare, and the solar panel integrated with the lamp is a courtyard lamp. Power supply reduces the use of mains electricity, saves energy, and does not require wiring, making the installation and maintenance of lamps easier. The thin design makes the lamps simple, thin and beautiful, effectively broadening the application range of LED solar lamps.

The technical scheme adopted in the utility model is as follows:

An LED solar garden light, comprising a lamp housing, a light guide plate, an LED lamp plate, reflective paper and a glass lampshade, the lamp housing is open, and a light source cavity is formed inside the housing; the light guide plate is laid flat on the bottom of the light source cavity; The LED light board includes a circuit board and LEDs welded on the circuit board. The LED light board is located on the side of the light guide plate, and the side where the LED is welded faces the light guide plate; the side of the light guide plate facing the bottom of the light source cavity and without the LED light board The side of the glass lampshade is pasted with reflective paper; the glass lampshade is fixed at the open end of the lamp housing to form a sealed structure with the lamp housing; the inner side of the glass lampshade is pasted with a brightening film; the back of the lamp housing is equipped with a solar panel.

A preferred solution is that the light guide plate is rectangular, and the LED light board is located on the sides of the two long sides of the light guide plate.

A preferred solution is that the light guide plate is made of optical grade acrylic or PC board.

A preferred solution is that the lamp housing is an aluminum profile.

The beneficial effects of the utility model are:

1. Low glare. The light guide plate is made of optical-grade acrylic or PC board. The reflection points on both sides of the light guide plate are small, round and spaced apart, while the reflection points in the middle of the light guide plate are dense, thick and slightly oval. When the light enters the light guide plate from both sides and hits the reflection point, it is diffusely reflected to the surface of the light guide plate; the other part of the light directly penetrates the light guide plate to reach the surface. The direct light obtained by the light guide plate close to the light source is stronger, and the light far away is weaker; on the other hand, the reflection points close to the light source are small and distant, and the light reflected diffusely is less. Points reflect more light. After these lights are fused, the effect of uniform brightness of the entire light guide plate is achieved. Light guide plate technology has been applied to panel lights, but the application of garden lights has not yet appeared. The combination of LED and light guide plate makes the light emitting form of the lamp change from a point light source to a surface light source, making the light emitting surface uniform, reducing the brightness of the light emitting surface, and effectively reducing glare. Due to the addition of the light guide plate, the lamp housing uses a lighter and thinner aluminum profile, which reduces the volume and weight of the lamp, and both the appearance and the installation method will be improved.

2. Low light pollution. Due to the addition of the light guide plate, the lamp becomes very thin, so it is impossible to install the lens for secondary light distribution, so the brightness enhancement film is added on this basis, so that the lamp changes from the original spherical light distribution to a similar LED street lamp. Batwing light distribution improves the utilization rate of light and reduces light pollution caused by lamps in directions where light is not needed.

3. High lamp efficiency. The reflective paper is pasted on the non-light-emitting surface of the light guide plate, and its main function is to improve the luminous flux and light utilization rate of the light-emitting surface.

4. Installing solar panels on the back of the lamp not only makes the appearance more novel, but also does not require additional power supply equipment and wiring, making installation, transportation, repair and maintenance more convenient.

5. This utility model adopts LED light source, which has a long service life and a luminous time of up to 50,000 hours; short start-up time and response time; firm structure, as a solid all-solid structure, can withstand strong vibration and impact; luminous efficiency High, low energy consumption; the illuminant is close to a point light source, and the radiation model of the light source is simple, which is conducive to the design of lamps. the

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is another structural representation of the utility model;

Fig. 3 is the light distribution curve figure of the present utility model;

Among them: 1 glass lampshade; 2 brightness enhancement film; 3 light guide plate; 4 reflective paper; 5 light source cavity; 6 solar panel; 7 lamp housing; 8 LED; 9 circuit board.

Detailed ways

Below in conjunction with specific embodiment the utility model is described further.

Example 1

As shown in Figures 1 and 2, an LED solar garden light includes: a glass lampshade 1, a brightness enhancement film 2, a light guide plate 3, reflective paper 4, a solar panel 6, a lamp housing 7 and an LED lamp board.

The lamp housing 7 is an open type, and the light source cavity 5 is inside the housing, and the lamp housing is an aluminum profile as an integral frame.

The light guide plate 3 is rectangular and made of optical-grade acrylic plate; the light guide plate 3 is laid flat on the bottom of the light source cavity.

The LED light board composed of the circuit board 9 and the LED 8 welded thereon is located on both sides of the long side of the light guide plate 3, fixed on the inner side wall of the light source cavity, and the side where the LED is welded faces the light guide plate; it must be aligned with the light guide plate Ensure that the LED is in the middle of the side of the light guide plate, so that the light can evenly reach the light guide plate.

Reflective paper is pasted on the side of the light guide plate facing the bottom of the light source cavity and the side where no LED light board is installed to improve light efficiency.

The glass lampshade 1 is fixed at the opening end of the lamp housing, and forms a sealed structure with the lamp housing; the inner side of the glass lampshade is pasted with a brightness enhancing film;

The solar cell panel 6 is installed on the back of the lamp housing 7 after being assembled according to the required power.

FIG. 3 is the light distribution curve of this embodiment. As shown in FIG. 3 , the lamp has a batwing light distribution after adding the brightness enhancement film 2 .

Example 2

The structure of this embodiment is basically the same as that of Embodiment 1, except that the light guide plate is made of optical grade PC board.

Claims (4)

1. a LED solar energy garden lamp comprises lamp housing, LGP, LED lamp plate, reflective sheeting and glass lamp shade,

Described lamp housing is opened type, forms light-source chamber in the housing;

Described LGP is tiled in the light-source chamber bottom;

Described LED lamp plate comprises circuit board and the LED that is welded on the circuit board, and the LED lamp plate is positioned at the side of LGP, is welded with the one side of LED towards LGP;

Described LGP is towards the one side of light-source chamber bottom and do not have the side of LED lamp plate to post reflective sheeting;

Described glass lamp shade is fixed on the openend of lamp housing, forms hermetically-sealed construction with lamp housing;

It is characterized in that: brightness enhancement film is posted in described glass lamp shade inboard; Solar panel is equipped with at the described lamp housing back side.

2. LED solar energy garden lamp according to claim 1, it is characterized in that: described LGP is rectangle, the LED lamp plate is positioned at the side on two long limits of LGP.

3. LED solar energy garden lamp according to claim 1, it is characterized in that: described LGP is optical grade acryl or PC sheet material.

4. LED solar energy garden lamp according to claim 1, it is characterized in that: described lamp housing is aluminium section bar.

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