CN204345442U - A kind of LED downlight - Google Patents

Abstract

The utility model discloses a LED down lamp, which comprises a surface cover, a lamp body embedded in the surface cover, and a radiator fixed at the lower end of the lamp body; the lamp body comprises a shell, an LED light source structure arranged in the shell, a reflecting cover arranged in the shell and a light-transmitting sheet; the radiator comprises a disc-shaped mounting disc tightly attached to the lower end face of the shell, and a plurality of internally hollow radiating side columns uniformly extend outwards from the side edge of the mounting disc, so that the contact area between the radiating side columns and the external air is effectively increased; the unique ventilation design of the first ventilation heat dissipation hole and the second ventilation heat dissipation hole effectively utilizes the natural law of air convection to carry out rapid heat exchange, further accelerates the heat dissipation speed and effectively prolongs the service life of the LED light source structure; the radiator is of an integrally formed structure and made of heat-conducting metal, and the radiating efficiency is high.

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

LED is a semiconductor that can convert electrical energy into light energy. It changes the principle of tungsten filament luminescence of incandescent lamps and the three-based toner luminescence of energy-saving lamps, and uses electric field luminescence. The characteristics of LED are very obvious, such as long life, high luminous efficiency, low radiation and low power consumption. With the progress of science and technology, this light-emitting diode is becoming more and more perfect as a decoration and lighting source and is widely used in the lighting field. For example, LED downlights using LEDs as light sources are widely used in various lighting places. However, the LED light source itself will generate a lot of heat when it is working. Generally, it is necessary to set up a heat dissipation structure to speed up the heat dissipation. If the heat dissipation performance of the heat dissipation structure is poor, the heat will not be quickly dissipated, which will affect the luminous effect and service life of the LED light source. cause a great impact. As far as the current situation is concerned, the heat dissipation structure of LED downlights is generally more complicated, the design is relatively rigid and single, and the heat dissipation effect is not ideal.

Therefore, how to realize an LED downlight with a practical and reasonable structure, high heat dissipation efficiency, long service life, and unique and beautiful appearance is a technical problem to be solved urgently in the industry.

Contents of the invention

The main purpose of the utility model is to provide an LED downlight, aiming to realize an LED downlight with practical and reasonable structure, high heat dissipation efficiency, long service life and unique and beautiful appearance.

The utility model proposes an LED downlight, which includes a cover that can be fixed to the mounting hole, a lamp body that is clamped and installed in the cover, and a radiator that is connected and fixed at the lower end of the lamp body; the lamp body includes a shell, a device The LED light source structure in the housing, the reflector in the housing, and the light-transmitting sheet embedded in the upper end of the housing; the radiator includes a disc-shaped mounting plate that is closely attached to the lower end of the housing, and the side of the mounting plate A number of hollow heat dissipation side columns are evenly extended outward, and the first ventilation holes for air circulation and convection are left between the upper ends of each heat dissipation side column, and there are air cooling holes available for air circulation and convection between the lower ends of each heat dissipation side column. The second ventilation and heat dissipation holes for circulation and convection, the heat sink is integrally formed and made of heat-conducting metal; the LED light source structure includes a substrate closely attached to the bottom of the mounting plate, and LED lamp beads arranged on the substrate.

Preferably, the radiator and the housing are connected and fixed through a connecting bracket, and the connecting bracket is fixed to the radiator and the housing through first screws.

Preferably, a wire hole is provided at the bottom of the mounting plate.

Preferably, the side of the cover is provided with a mounting buckle which can snap and fix the LED downlight to the mounting hole.

Preferably, the face cover and the housing are connected by a second screw, and the angle of the lamp body can be adjusted around the second screw.

Preferably, the surface cover is made of heat-conducting metal and is integrally formed.

Preferably, the housing is made of heat-conducting metal and is integrally formed.

The radiator of the LED downlight of the utility model has an integrated structure and is made of heat-conducting metal. In this way, the heat generated by the LED light source structure is quickly spread throughout the radiator and released into the outside air, and the heat dissipation efficiency is high; moreover, the heat dissipation The interior of the side columns is set as a hollow structure, which effectively increases the contact area between the heat dissipation side columns and the external air, thereby improving the heat dissipation efficiency; in addition, there are first ventilation holes for air circulation and convection between the upper ends of each heat dissipation side column , There are second ventilation and cooling holes for air circulation and convection between the lower ends of each cooling side column. The unique ventilation design of the first ventilation and cooling holes and the second ventilation and cooling holes effectively utilizes the natural law of air convection. Heat exchange further accelerates the heat dissipation speed, and the heat does not accumulate, which ensures the long-term normal operation of the LED light source and effectively prolongs the service life of the LED light source structure. The perfect combination and unique design of the mounting plate, heat dissipation side columns, the first ventilation hole, and the second ventilation hole in the radiator, the structure is practical and reasonable, and the appearance is unique and beautiful, which overcomes the complex heat dissipation structure of traditional LED downlights, and the design is relatively rigid and single , The heat dissipation effect is not ideal. The utility model realizes an LED downlight with practical and reasonable structure, high heat dissipation efficiency, long service life and unique and beautiful appearance.

Description of drawings

Fig. 1 is one of the three-dimensional structural schematic diagrams of an embodiment of an LED downlight of the present invention;

Fig. 2 is the second three-dimensional structural schematic diagram of an embodiment of an LED downlight of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram of a radiator and a connecting bracket in an embodiment of an LED downlight of the present invention.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Referring to Figures 1 to 3, an embodiment of an LED downlight of the present invention is proposed, which includes a cover 100 that can be fixed to the mounting hole, a lamp body that is snap-fitted into the cover 100, and is connected and fixed on the The radiator at the lower end of the lamp body.

The lamp body includes a housing 201 , an LED light source structure disposed in the housing 201 , a reflector disposed in the housing 201 , and a light-transmitting sheet 202 embedded in the upper end of the housing 201 .

The radiator includes a disk-shaped mounting plate 301 that is closely attached to the lower end surface of the housing 201. The side of the mounting plate 301 evenly extends outwards with a number of hollow heat dissipation side columns 302. There is a space between the upper ends of each heat dissipation side column 302. There are first ventilation and cooling holes for air circulation and convection, and the second ventilation and cooling holes 303 for air circulation and convection are left between the lower ends of each heat dissipation side column 302. The radiator is an integrally formed structure and is made of heat-conducting metal. become. Since the heat sink is integrally formed and made of heat-conducting metal, the heat generated by the LED light source structure quickly spreads throughout the heat sink and is dissipated into the outside air, with high heat dissipation efficiency; moreover, the inside of the heat dissipation side column 302 is set as The hollow structure effectively increases the contact area between the heat dissipation side columns 302 and the outside air, thereby improving the heat dissipation efficiency; in addition, there are first ventilation and cooling holes for air circulation and convection between the upper ends of each heat dissipation side column 302, and each heat dissipation Between the lower ends of the side columns 302, there are second ventilation and cooling holes 303 for air circulation and convection. The unique ventilation design of the first and second ventilation and cooling holes 303 effectively utilizes the natural law of air convection to carry out rapid ventilation. Heat exchange further accelerates the heat dissipation speed, and the heat does not accumulate, which ensures the long-term normal operation of the LED light source and effectively prolongs the service life of the LED light source structure. The perfect combination and unique design of the installation plate 301 in the radiator, the heat dissipation side column 302, the first ventilation hole, and the second ventilation hole 303, the structure is practical and reasonable, and the appearance is unique and beautiful, which overcomes the complex heat dissipation structure of traditional LED downlights and the design It is relatively dull and single, and the heat dissipation effect is not ideal.

The LED light source structure includes a substrate closely attached to the bottom of the mounting plate 301 and LED lamp beads arranged on the substrate.

The radiator and the housing 201 are connected and fixed through the connecting bracket 400 , and the connecting bracket 400 is installed and fixed on the radiator and the housing 201 through the first screw 401 .

The bottom of the mounting plate 301 is provided with a wire hole 304 .

The side of the cover 100 is provided with a mounting buckle 101 that can snap and fix the LED downlight to the mounting hole.

The face cover 100 and the housing 201 are connected by second screws, and the angle of the lamp body can be adjusted around the second screws.

Both the cover 100 and the housing 201 are made of heat-conducting metal and are integrally formed, which can further improve heat dissipation efficiency.

The radiator of the LED downlight of the utility model has an integrated structure and is made of heat-conducting metal. In this way, the heat generated by the LED light source structure is quickly spread throughout the radiator and released into the outside air, and the heat dissipation efficiency is high; moreover, the heat dissipation The inside of the side column 302 is set as a hollow structure, which effectively increases the contact area between the heat dissipation side column 302 and the outside air, thereby improving the heat dissipation efficiency; in addition, a first hole for air circulation and convection is left between the upper ends of each heat dissipation side column 302 Ventilation and heat dissipation holes, the second ventilation and heat dissipation holes 303 for air circulation and convection are left between the lower ends of each heat dissipation side column 302, the unique ventilation design of the first ventilation and heat dissipation holes and the second ventilation and heat dissipation holes 303, effectively using the air The natural law of convection conducts rapid heat exchange, further speeds up the heat dissipation, and does not accumulate heat, ensuring the long-term normal operation of the LED light source and effectively prolonging the service life of the LED light source structure. The perfect combination and unique design of the installation plate 301 in the radiator, the heat dissipation side column 302, the first ventilation hole, and the second ventilation hole 303, the structure is practical and reasonable, and the appearance is unique and beautiful, which overcomes the complex heat dissipation structure of traditional LED downlights. It is relatively dull and single, and the heat dissipation effect is not ideal. The utility model realizes an LED downlight with practical and reasonable structure, high heat dissipation efficiency, long service life and unique and beautiful appearance.

The above are only preferred embodiments of the present utility model, and are not therefore limiting the patent scope of the present utility model. All equivalent structural transformations made by using the utility model specification and accompanying drawings are directly or indirectly used in other related technologies. Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (7)

1. An LED downlight, characterized in that it includes a cover that can be secured to the mounting hole, a lamp body snap-fitted in the cover, and a radiator connected and fixed at the lower end of the lamp body; The lamp body includes a housing, an LED light source structure disposed in the housing, a reflector disposed in the housing, and a light-transmitting sheet embedded in the upper end of the housing; the radiator includes a The disc-shaped mounting plate on the lower end surface of the housing, the side of the mounting plate extends outward evenly with a number of hollow heat dissipation side columns, and there is a space between the upper ends of each heat dissipation side column for air circulation. Convective first ventilation and heat dissipation holes, second ventilation and heat dissipation holes for air circulation and convection are left between the lower ends of each of the heat dissipation side columns, and the heat sink is integrally formed and made of heat-conducting metal; The LED light source structure includes a substrate closely attached to the bottom of the mounting plate, and LED lamp beads arranged on the substrate. 2. The LED downlight according to claim 1, characterized in that, the radiator and the housing are connected and fixed through a connecting bracket, and the connecting bracket is fixed to the said connecting bracket through a first screw. heat sink and the housing. 3. The LED downlight according to claim 1 or 2, characterized in that a hole for a wire is provided at the bottom of the mounting plate. 4 . The LED downlight according to claim 3 , characterized in that, the side of the cover is provided with a mounting buckle that can snap and fix the LED downlight to the mounting hole. 5 . 5. The LED downlight according to claim 4, characterized in that, the face cover and the housing are connected by a second screw and the lamp body can be angled around the second screw adjustment. 6 . The LED downlight according to claim 5 , wherein the cover is made of heat-conducting metal and is integrally formed. 7. The LED downlight according to claim 6, wherein the housing is made of heat-conducting metal and is integrally formed.