CN202484670U - LED (Light Emitting Diode) tube lamp - Google Patents

Abstract

The utility model relates to an LED (Light Emitting Diode) tube lamp which comprises a heat dissipation cover, wherein an aluminum base plate which is provided with an LED light source is arranged in the heat dissipation cover; an aluminum panel which is used for assisting heat dissipation is arranged at the lower end of the heat dissipation cover; fins are uniformly distributed on the aluminum panel; the bottom edge of the aluminum panel is provided with an extension edge on which an air vent is formed; the air vent is used for air convection and suspension of light and small ornaments; a high-reflectivity PET (Poly Ethylene Terephthalate) reflector is arranged on the inner wall of the heat dissipation cover and a high-transmittance diffusion plate is arranged at the bottom of the heat dissipation cover; a driving power supply of the LED tube lamp is arranged in a plastic box and connected with the LED light source through a wire; and the air vent is formed in the upper cover of the plastic box. According to the tube lamp, the aluminum panel with the hole is arranged at the lower end of the heat dissipation cover to improve the heat dissipation effect, so that the LED heat source can be smoothly guided out and radiated all around, then the temperature of the whole lamp is decreased, the service life of the LED light is source is prolonged and the lighting effect is improved; the power supply is arranged independently and the mounting position can be selected flexibly, so that the mounting is convenient; and a power supply module is not closed, so that the heat dissipation is good and the service life of the whole lamp is prolonged.

Description

A kind of LED downlight

technical field

The utility model relates to the technical field of LED lighting, in particular to an LED downlight.

Background technique

Downlights are widely used in shopping malls, hotels and other fields as commercial main lighting. Traditional downlights have problems such as high energy consumption, heavy lamp body, and difficult installation and maintenance. In many occasions, in order to achieve a specific luminous flux and illuminance value, lamps and lamps are densely distributed and installed, which leads to a lot of unnecessary waste of light and power. consume.

LED has the advantages of high light efficiency and environmental protection, and it can obtain a lot of energy-saving effects when applied to downlights. However, many LED downlights pursue short-term benefits and save costs, and have unreasonable heat dissipation structure design, high temperature, fast luminous flux attenuation, low light efficiency, uneven brightness, incompatible LED light sources, obvious white light spots, glare, Dazzling, unreliable installation of shrapnel and many other problems.

Contents of the invention

The problem to be solved by the utility model is to provide an LED downlight with reasonable structure, good heat dissipation effect and compatibility with various LED light sources.

The technical solution adopted by the utility model is: an LED downlight, including a heat dissipation cover, an aluminum base plate for installing an LED light source is arranged inside the heat dissipation cover, and an aluminum panel for auxiliary heat dissipation is provided at the lower end of the heat dissipation cover, and the aluminum panel has a heat dissipation function. The bottom of the cover is provided with an annular connecting portion whose circumferences are connected. The bottom edge of the annular connecting portion has an overhanging edge, and an air vent is arranged on the overhanging edge.

Radiating fins are arranged on the annular connecting portion of the aluminum panel.

The inner wall of the heat dissipation cover is provided with a high reflectivity PET reflective sheet; the bottom of the heat dissipation cover is provided with a high light transmittance diffusion plate, and the high light transmittance diffusion plate is installed in the placement groove of the aluminum panel.

The aluminum panel is installed on the lower end of the heat dissipation cover through screws.

Both sides of the aluminum panel are provided with shrapnel clips. The shrapnel clips are first inserted into the shrapnel seats arranged on both sides of the aluminum panel, and then fixed to the aluminum panel by screws.

The LED downlight also includes a power supply module, which is arranged above the heat dissipation cover, is independently installed in a plastic box, and is connected to the LED light source through a line.

The upper cover of the plastic box is provided with ventilation holes; the plastic box is installed on the top of the heat dissipation cover through screws, leaving a gap with the upper end of the heat dissipation cover.

Compared with prior art, the beneficial effect of the utility model is:

(1) The downlight of the utility model is equipped with an aluminum panel with holes at the lower end of the heat dissipation cover to improve the heat dissipation effect, so that the LED heat source can be smoothly exported and radiated to the surroundings, and the temperature of the whole lamp can be reduced, thereby prolonging the life of the LED light source and improving the light efficiency ;

(2) The power supply is set independently, the installation location can be flexibly selected, and the installation is convenient;

(3) The power supply module is not closed, and the upper and lower sides of the rubber shell are ventilated, and the heat dissipation is good, thereby improving the life of the whole lamp;

(4) The small holes on the aluminum panel can be hung with small decorations to decorate the festive atmosphere and meet the diverse needs of customers;

(5) The internal structure of the downlight is compatible with a variety of LED light sources, and the light is soft, uniform, without shadows, without obvious glare, without glare, and with higher light efficiency.

Description of drawings

Fig. 1 is a schematic exploded view of the structure of the embodiment of the LED downlight; Fig. 2 is the overall structure diagram of the embodiment of the LED downlight; Fig. 3 is a structural diagram of the aluminum panel extending along the embodiment of the LED downlight; Fig. 4 is A sectional view of an embodiment of the LED downlight.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

The LED downlight disclosed in this embodiment, as shown in the accompanying drawings 1-4, includes a heat dissipation cover 6, the aluminum substrate 5 for installing the LED light source is arranged in the heat dissipation cover 6, and the inner surface of the heat dissipation cover 6 is provided with a high-reflectivity PET The reflective sheet 4 is provided with a high-transmittance diffuser 3 at the bottom, so that part of the light emitted by the LED light source is directly emitted through the high-transmittance diffuser, and the other part is projected on the PET reflective sheet on the inner surface of the heat dissipation cover. It is reflected to the diffuser plate 3 with high light transmittance and diffused out. An aluminum panel 1 for auxiliary heat dissipation is arranged at the lower end of the heat dissipation cover. The upper part of the aluminum panel 1 is ring-shaped. The lower end is provided with an overhanging edge 12, and an air vent 13 is arranged on the overhanging edge. The aluminum panel 1 is installed on the lower end of the heat dissipation cover 6 by screws, and the above-mentioned high light transmittance diffusion plate is installed in the placement groove of the aluminum panel 1 .

Due to the relatively low requirements for the protection level of indoor lamps, using this point, the downlight described in the utility model divides the heat dissipation area into two pieces, that is, the aluminum panel 1 and the heat sink 6 . The LED light source and the aluminum substrate 5 are locked on the inner bottom plane of the heat dissipation cover 6, and the middle is filled with heat-conducting silicone grease. In this way, the heat source generated by the LED is evenly exported by the heat-conducting silicone grease and dissipated through the heat dissipation cover 6 . Because most of the downlights are vertical to the ground or floor and embedded in the ceiling, the aluminum panel 1 is exposed on the surface of the ceiling with multiple groups of air holes along the protruding edge for air convection, and the air holes continuously flow into the air. Good convection with the air in the sealed ceiling.

The power supply module of the downlight is designed as an independent module. The plastic upper cover 10 with a through hole can be buckled on the plastic bottom cover 7 of the power supply through a detent, and the terminal cover 15 is inserted into the upper cover 10 of the power supply plastic box by detent. It can be pushed out and separated from it to facilitate the installation and wiring of end users. The power supply plastic box is made of fireproof PC material. The entire power supply box can be fixed on the heat dissipation cover 6 by screws (it can also be installed separately). There is enough ventilation space on the joint surface of the heat dissipation cover 6 and the power supply. The upper cover 10 of the power supply plastic box is set There are many ventilation holes for air convection, so the power supply space is not closed, and the ambient temperature is greatly reduced. Coupled with convection, the temperature of the components in the power module, especially the IC and electrolytic capacitors, can be greatly reduced.

A plurality of groups of ventilation holes arranged along the protruding edge of the aluminum panel 1 can also be used to hang light ornaments, such as balloons, ribbons and other decorations to decorate the atmosphere and meet the diverse needs of customers. the

As shown in Figure 2, the heat dissipation cover 6 reserves enough space for compatibility with various LED light sources. No matter what kind of LED light source is used, the PET reflector 4 with high reflectivity can ensure high-quality light overflow and avoid shadows, Bright white light spots, glare and other phenomena, while increasing luminous flux and illuminance by 20%.

In addition, the aluminum panel 1 Shanghai is provided with two shrapnel seats, and the two shrapnel seats adopt the structure of inserting and adding screws to install the shrapnel clip 2. A good shrapnel clip installation structure can make the lamp clamped in the ceiling for a long time and still remain Stay in high strength and firm condition.

The above-mentioned embodiments are only preferred implementation modes of the present utility model, in addition, the present utility model may also have other implementation modes. That is to say, on the premise of not departing from the concept of the present utility model, any obvious replacement shall fall within the protection scope of the present utility model.

Claims (10)

1. LED Down lamp; Comprise heat dissipating housing (6), be provided with the aluminium base that led light source is installed in the heat dissipating housing (6), it is characterized in that; Be provided with the aluminium matter panel (1) of auxiliary heat dissipation in the heat dissipating housing lower end; Aluminium matter panel (1) has the annular connecting portion (11) that joins with heat dissipating housing bottom circumference, and annular connecting portion base has overhanging edge (12), and overhanging edge is provided with air-vent (13).

2. LED Down lamp according to claim 1 is characterized in that, the annular connecting portion (11) of said aluminium matter panel (1) is provided with radiating fin.

3. LED Down lamp according to claim 1 is characterized in that, said heat dissipating housing (6) inwall is provided with high reflectance PET reflecting piece.

4. LED Down lamp according to claim 3 is characterized in that, said heat dissipating housing (6) bottom is provided with the high transmission rate diffuser plate, and this high transmission rate diffuser plate is installed in the standing groove of aluminium matter panel (1).

5. LED Down lamp according to claim 4 is characterized in that, said aluminium matter panel (1) is installed on heat dissipating housing (6) lower end through screw.

6. LED Down lamp according to claim 5 is characterized in that, said aluminium matter panel (1) both sides are equipped with Spring sheet clip (2).

7. LED Down lamp according to claim 6 is characterized in that, said aluminium matter panel (1) both sides are provided with the shell fragment seat, and Spring sheet clip inserts the shell fragment seat, and fixes through screw and aluminum panel.

8. according to any described LED Down lamp among the claim 1-7, it is characterized in that also comprise the power supply module that is arranged at the heat dissipating housing top, said power supply module independently is installed in the plastic box, is connected through circuit with led light source.

9. LED Down lamp according to claim 8 is characterized in that, covers on the said plastic box and is provided with air-vent.

10. LED Down lamp according to claim 9 is characterized in that, said plastic box is installed on the heat dissipating housing top through screw, leaves the space with the heat dissipating housing upper end.

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