CN201651835U - A kind of LED lamp - Google Patents

Abstract

The utility model discloses a LED lamp, which comprises a lamp frame, wherein a groove is arranged on the frame; a circuit board on which a plurality of LED bulbs are mounted; the light guide plate is provided with textures on one surface; the light guide plate comprises a light guide plate, a light reflecting layer and a light transmitting layer, wherein the light reflecting layer is arranged on one surface of the light guide plate with textures; the circuit board is arranged in a groove of the frame and positioned at the edge of the light guide plate, and a heat dissipation aluminum substrate is arranged between the circuit board and the frame and is embedded on the frame. The utility model discloses a diffusion layer, light guide plate, reflector layer and LED bulb cooperate, and structure and preparation technology are all fairly simple, and the appearance is pleasing to the eye, solves the problem of general illumination lamps and lanterns area glare, and light is bright soft, and is not dazzling, and power consumption is little moreover, can do illumination lamps and lanterns and can decorate lamps and lanterns again.

Description

A kind of LED lamp

【Technical field】

The utility model relates to an illumination lamp, in particular to an LED lamp.

【Background technique】

At present, the main forms of light sources for lighting fixtures are point light sources and line light sources. The point light source referred to here refers to the light source whose irradiation on the plane is equivalent to that of a point, and is a type of light source similar to the lighting effect of a single incandescent lamp. general term. The so-called line light source refers to a light source whose irradiation on a plane is equivalent to that of a straight line segment, such as a fluorescent tube. Surface light source lighting is a special combination lighting method of point light source lighting. Surface light source is generally formed by densely combined point light source or line light source. Because of soft and uniform light emission, surface light source is more ideal and healthier than point light source or line light source. light source.

LED is a semiconductor that can convert electrical energy into visible light. It has the advantages of high efficiency, pure light color, high light quality, low energy consumption, long life, and illuminant close to point light source. It is internationally recognized as a new type of light in the 21st century. Green light source. Traditional LEDs are mainly used in the field of signal display, building aviation obstruction lights, navigation lights, car signal lights, instrument backlighting, and now entertainment, building indoor and outdoor, urban beautification, and landscape lighting are becoming more and more widely used. If one-half of the household lighting in our country uses LEDs, the power generation of the Three Gorges Power Station can be saved every year.

There is an existing surface light source composed of LEDs, such as patent application No. 2006100620897X, named LED surface light source, which discloses a LED surface light source, including an LED substrate and several LEDs installed on the LED substrate. The fluorescent powder plate support of the LED, the fluorescent powder plate support has an inner tapered reflective surface that opens outwards, the reflective surface has a reflective material, and a cover that covers the LED and is installed on the fluorescent powder plate support. The LED has phosphor plates at certain intervals, and the side of the phosphor plate facing the LED is coated with phosphor. The phosphor plate is made of light-transmitting material. The LED substrate is made of thermally conductive material. The LED substrate is fixed on the shell with the help of heat-conducting materials. This invention forms a uniform light-emitting surface on the phosphor plate, which emits very uniform and soft light, avoids the generation of glare, completely eliminates the phenomenon of glare, and achieves the protection of eyesight and Completely eliminates the effect of point light sources.

The phosphor plate used as the light distribution plate of the LED surface light source with the above structure is a flat plate, which is completely covered on the substrate with LEDs and has a certain distance from the LEDs. Therefore, the entire LED surface light source has a higher height and a larger volume. , and the structure in which the phosphor plate is entirely covered on the substrate with LEDs makes it impossible to freely combine and match the LED surface light sources, and the LED surface light sources cannot be produced in a modular manner.

Existing general lighting fixtures generally adopt fluorescent lamps or incandescent bulbs. Such lighting fixtures not only consume a lot of power, but also cause glare. There are still many places where LEDs are used as lighting fixtures, but due to the existing LED packaging problems, the light emitted by the LEDs has glare, which does not meet the visual requirements of today's people, and its light is relatively dim, and most of them are only used as decorative lights. . For example, the patent No. 96225173.9 is a double-shell non-glare light bulb. Two layers of shells are arranged outside the lamp cap, and the inner shell scatters the light to make it produce soft light. It is troublesome, and the filament type incandescent bulb is used, which consumes a lot of power and generates high heat. Its outer shell is a glass body, and the lamp cap is easy to damage; another example is a curtain wall lamp with a patent number of 200410033101.5, which is equipped with an LED tube in the light-transmitting bottom box , at the bottom of the light-transmitting bottom box, a diffuser is arranged. Although the light made by this method is very soft, it is very dim and cannot be used as a lighting fixture at all. In short, the existing schemes that use LEDs as lighting lamps are bright but have glare; those without glare cannot play the role of lighting.

【Content of utility model】

The purpose of the utility model is to solve the above-mentioned problems and provide an LED lamp with good heat dissipation effect, uniform and soft light and no glare.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an LED lamp, which includes a frame of the lamp, and grooves are arranged on the frame; a circuit board, on which a plurality of LED bulbs are installed; a light guide plate, One side of the light guide plate is provided with a texture; a reflective layer, the reflective layer is installed on the textured side of the light guide plate; and a diffusion layer is installed on the other side of the light guide plate, and the circuit board is installed in the groove of the frame Inside and at the edge of the light guide plate, it is characterized in that a heat dissipation aluminum substrate is arranged between the circuit board and the frame, and the heat dissipation aluminum substrate is embedded on the frame.

Preferably, the texture on the light guide plate is a silk screen texture.

Preferably, the texture on the light guide plate is a frosted texture.

Preferably, the texture arranged on the light guide plate is a concave-convex texture.

Preferably, the frames are connected by clips.

Compared with the prior art, the utility model has the following beneficial effects: because the utility model adopts the diffusion layer, the light guide plate, the reflective layer and the LED bulb to cooperate, the structure and the manufacturing process are relatively simple, and the light emitted by the LED bulb passes through the light guide plate. Refraction and reflection, as well as the reflection of the reflective layer, are emitted from the diffusion layer through the light guide plate. The light is uniform and soft, without glare and glare; The power consumption is relatively small; the LED bulb is installed in a hard shell, and there is an aluminum substrate in the frame to dissipate heat for the LED bulb and the circuit board, and the periphery of the frame is zigzag to increase the heat dissipation area, which solves the problem of high LED power and high heat generation. The problem is that the aluminum substrate is embedded in the frame, which increases the contact area with the frame, and also greatly improves the heat dissipation efficiency, so that the working time of the utility model is very long, and the lamp will not be damaged due to excessive temperature; the frame There are no screw holes, so that the connection between the frames is integrated and the appearance is more beautiful. The utility model has a beautiful appearance and can also function as a decoration, and is a very beautiful and practical decorative lighting fixture.

【Description of drawings】

Fig. 1 is the appearance drawing of using the utility model;

Fig. 2 is a structure exploded view of the utility model;

Fig. 3 is a partial sectional view of the utility model;

Fig. 4 is to connect enlarged view with frame place of the present utility model;

Fig. 5 is an enlarged view of the buckle of the present utility model;

Fig. 6 is a schematic diagram of light propagation in the light guide plate of the present invention;

Fig. 7 is a schematic diagram of three textures of the light guide plate used in the present invention.

【Detailed ways】

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to Fig. 1, Fig. 2 and Fig. 3, the texture is arranged on one side of the light guide plate 3. The textured surface is covered with a layer of reflective layer 4, and then the non-textured surface of the light guide plate 4 is covered with a layer of diffusion layer 2, and the circuit board 5 with the LED bulb 6 is placed on the edge of the light guide plate 3; the aluminum substrate 8 Inlaid in the groove of the frame 1, put the frame 1 on the circuit board 5, and then put it on the diffusion layer 2, the light guide plate 3 and the reflective layer 4, so that the circuit board is in the groove of the frame 1, and the aluminum substrate 8 The side without the heat-conducting adhesive 7 sticks to each other, and the diffusion layer 2, the light guide plate 3 and the reflective layer 4 are clamped by the frame 1; there are two shrapnel 9 between the circuit board 5 and the frame 1, so that the components in the frame 1 cannot It will slide in the groove; then put the buckle 10 in the slot of the frame 1, put another frame 1 on the buckle 10, and put the buckle 10 in the corresponding slot on the frame 1 , the other two frames 1 are also installed in the same way, and finally the aluminum bottom plate 11 is installed on the bottom of the frame 1 with screws 12 . After all are installed, it is shown in Figure 1, and its structure is shown in Figure 3 and Figure 4. The circuit board 5 and the LED bulb 6 can not only be arranged on the two opposite edges of the light guide plate 3, but also can be arranged on the two adjacent edges of the light guide plate, and the circuit board 5 and the LED bulbs can also be arranged on three or four edges of the light guide plate. The light bulb 6 and the light guide plate 3 can also be arranged in other shapes, such as circular, elliptical, star-shaped, etc., and the frame 1 can also be made in a corresponding shape. The circuit board 5 can be a rigid strip circuit board or a flexible strip circuit board.

When electrified, the LED bulb emits light, and the light is transmitted from the surface of the diffusion layer 2 after being conducted by the light guide layer 3 , the reflective layer 4 and the diffusion layer 2 , the light is soft and glare-free, and not dazzling. Due to the use of LED bulbs, the light is very bright and can be used for lighting. The thermally conductive insulating solid 7 can conduct the heat emitted by the circuit board 5 to the frame 1 for dissipation, and the frame 1 is made of a hard thermally conductive material.

Claims (5)

1. An LED lamp, comprising a lamp frame, on which a groove is arranged; a circuit board, on which a plurality of LED light bulbs are installed; a light guide plate, one side of which is provided with a texture; a reflective layer , the reflective layer is installed on the textured side of the light guide plate; and the diffusion layer is installed on the other side of the light guide plate, the circuit board is installed in the groove of the frame and located at the edge of the light guide plate, which The feature is that a heat dissipation aluminum substrate is arranged between the circuit board and the frame, and the heat dissipation aluminum substrate is embedded on the frame. 2. The LED lamp according to claim 1, characterized in that: the texture arranged on the light guide plate is a silk screen texture. 3. The LED lamp according to claim 1, characterized in that: the texture arranged on the light guide plate is frosted texture. 4. The LED lamp according to claim 1, characterized in that: the texture arranged on the light guide plate is a concave-convex texture. 5. The LED lamp according to claim 1, characterized in that: the frames are connected by clips.

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