CN206191410U - LED projection lamp - Google Patents

Abstract

The utility model discloses a LED projection lamp, which comprises a bottom shell with a plurality of light guide reflecting grooves on the front end surface, a plurality of LED light source structures arranged in the light guide reflecting grooves, a light-passing plate which is connected and fixed at the front end surface of the bottom shell and covers the LED light source structures, and a driving device which is arranged inside the bottom shell and is electrically connected with the LED light source structures; the light guide and reflection groove is in the shape of an inverted trapezoid, a plurality of layers of annular steps with light guide and reflection functions are arranged on the inner side surface of the light guide and reflection groove, and a reflection layer is coated on the inner surface of the light guide and reflection groove; the back of the bottom shell extends outwards to form a plurality of radiating fins which are arranged in a sectional mode and are beneficial to ventilation and heat dissipation.

Description

A kind of LED flood light

technical field

The utility model relates to the technical field of lamps, in particular to an LED projection lamp.

Background technique

Existing LED floodlights generally include a bottom shell, a full-page LED light source structure inside the bottom shell, and a light-transmitting plate fixed on the bottom shell. Some LED floodlights also have a structure surrounding the LED light source. The reflective cup on the upper, but this kind of light distribution method is relatively traditional and old. The full-page LED light source structure is equipped with LED lamp beads. The lights between the LED lamp beads are easy to affect each other, which affects the luminous efficiency and light utilization rate. Moreover, the reflective cup has little effect on the light guide and reflection of the LED light source in the middle part of the full-page LED light source structure. The LED light source in the middle part is often directly irradiated outward, which is likely to cause glare and glare, and the light output effect is average. In addition, in order to improve the heat dissipation efficiency, the back of the bottom shell of the LED floodlights on the market is generally equipped with heat dissipation fins, but the existing heat dissipation fins are generally of a continuous structure, and the continuous heat dissipation fins are not conducive to air flow. Circulation, ventilation and heat dissipation are not effective, which affects the heat dissipation effect.

Therefore, how to realize an LED floodlight with a novel and simple structure, a novel and reasonable light distribution method, uniform and soft light output, high light efficiency, high light utilization rate, and ideal heat dissipation effect is a technical problem to be solved urgently in the industry.

Utility model content

The main purpose of this utility model is to provide an LED floodlight, aiming to realize a LED floodlight with novel and simple structure, novel and reasonable light distribution method, uniform and soft light output, high light efficiency, high light utilization rate, and ideal heat dissipation effect. lamp.

The utility model proposes an LED projection lamp, which includes a bottom shell with several light guide and reflective grooves on the front surface, a number of LED light source structures arranged in the light guide and reflective grooves, connected and fixed on the front surface of the bottom shell, and the LED light source The light-transmitting plate set up by the structure cover, the driving device set inside the bottom shell and electrically connected to the LED light source structure; the light-guiding and reflecting groove is in the shape of an inverted trapezoid, and the inner surface of the light-guiding and reflecting groove is provided with several layers with light-guiding There is a ring-shaped step with reflective effect, and the inner surface of the light guide and reflective groove is coated with a reflective layer; a number of heat dissipation fins extend outward from the back of the bottom shell, and the heat dissipation fins are segmented to facilitate ventilation and heat dissipation.

Preferably, the light-transmitting plate and the bottom case are connected and fixed by fixing blocks and screws.

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

Preferably, the LED light source structure includes a substrate closely attached to the bottom of the light guide and reflective groove, and several LED lamp beads arranged on the substrate and electrically connected to the driving device.

Preferably, the LED floodlight further includes installation and adjustment frames connected to both sides of the bottom case.

The structure of the LED projecting light of the utility model is novel and simple, and the light distribution method is novel and reasonable. There are several light guide and reflective grooves on the bottom shell, and each light guide and reflective groove is provided with an independent LED light source structure, that is, each LED light source structure Independently equipped with light guide and reflective grooves, so that the LED light source structures emit light independently without mutual influence, which is conducive to ensuring the light output effect. Moreover, each light guide and reflective groove is in the shape of an inverted trapezoid, and the inner light guide and reflective grooves There are several layers of annular steps with light guide and reflective effect on the side, and the inner surface of the light guide and reflective groove is coated with a reflective layer. In this way, the light emitted by each LED light source structure shines on the inner surface of the light guide and reflective groove, and the light passes through the light guide. The reflection of the reflective groove will only be irradiated outward after multiple reflections, so that the light is even and soft, and will not be dazzling, which greatly improves the light utilization rate and light efficiency. In addition, a number of heat dissipation fins extend outward from the back of the bottom shell, and the heat dissipation fins are segmented to facilitate ventilation and heat dissipation. The segmented structure is conducive to air circulation, ventilation and heat dissipation, and can further improve heat dissipation efficiency. The utility model realizes an LED projection lamp with novel and simple structure, novel and reasonable light distribution method, uniform and soft light output, high light efficiency, high light utilization rate, and ideal heat dissipation effect.

Description of drawings

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

Fig. 2 is the second schematic diagram of the three-dimensional structure of an embodiment of an LED floodlight 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 description

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 Fig. 1 to Fig. 2, an embodiment of an LED floodlight of the present invention is proposed, which includes a bottom shell 100 with several light guide and reflective grooves on the front surface, and several LED light source structures arranged in the light guide and reflective grooves. 200 . Connect and fix the light-transmitting plate 300 fixed at the front end of the bottom case 100 and cover the LED light source structure 200 , and the driving device provided inside the bottom case 100 and electrically connected with the LED light source structure 200 . The light guide and reflective groove is in the shape of an inverted trapezoid, and the inner surface of the light guide and reflective groove is provided with several layers of annular steps 101 with light guide and reflective effect, and the inner surface of the light guide and reflective groove is coated with a reflective layer. Existing LED floodlights generally include a bottom shell, a full-page LED light source structure inside the bottom shell, and a light-transmitting plate fixed on the bottom shell. Some LED floodlights also have a structure surrounding the LED light source. The reflective cup on the upper, but this kind of light distribution method is relatively traditional and old. The full-page LED light source structure is equipped with LED lamp beads. The lights between the LED lamp beads are easy to affect each other, which affects the luminous efficiency and light utilization rate. Moreover, the reflective cup has little effect on the light guide and reflection of the LED light source in the middle part of the full-page LED light source structure. The LED light source in the middle part is often directly irradiated outward, which is likely to cause glare and glare, and the light output effect is average. However, the structure of the LED projecting light of the utility model is novel and simple, and the light distribution method is novel and reasonable. The bottom shell 100 is provided with a number of light guide and reflective grooves, and each light guide and reflective groove is provided with an independent LED light source structure 200, that is, each The LED light source structure 200 is independently equipped with light guide and reflective grooves, so that the LED light source structures 200 emit light independently without mutual influence, which is beneficial to ensure the light output effect. Moreover, each light guide and reflective groove is in the shape of an inverted trapezoid. The inner surface of the light-reflecting groove is provided with several layers of annular steps 101 with light-guiding and reflecting effects, and the inner surface of the light-guiding and reflecting groove is coated with a light-reflecting layer, so that the light emitted by each LED light source structure 200 is irradiated into the light-guiding and reflecting groove On the surface, the light is irradiated outward after multiple reflections by the light guide and reflective grooves, so that the light is uniform and soft, without dazzling and glare, which greatly improves the light utilization rate and light efficiency.

A plurality of heat dissipation fins 102 extend outward from the back of the bottom case 100 , and the heat dissipation fins 102 are segmented to facilitate ventilation and heat dissipation. In order to improve the heat dissipation efficiency, the back of the bottom shell of the LED floodlights on the market is generally equipped with heat dissipation fins, but the existing heat dissipation fins are generally of a continuous structure, and the continuous heat dissipation fins are not conducive to air circulation. The ventilation and heat dissipation effect is not good, which affects the heat dissipation effect. The back of the bottom shell 100 extends outwards with a number of cooling fins 102. The cooling fins 102 are segmented settings that are conducive to ventilation and heat dissipation. The segmented structure is conducive to air circulation, ventilation and heat dissipation, and can further improve heat dissipation efficiency. .

The bottom shell 100 is integrally formed and made of heat-conducting metal, which has high heat conduction and heat dissipation efficiency.

The light-transmitting plate 300 and the bottom case 100 are connected and fixed by fixing blocks 401 and screws 402 , so that the connection of the light-transmitting plate 300 is stable and reliable, and the waterproof performance is high.

The LED light source structure 200 includes a substrate closely attached to the bottom of the light guide and reflective groove, and several LED lamp beads arranged on the substrate and electrically connected to the driving device.

The LED floodlight also includes installation and adjustment frames 500 connected to both sides of the bottom case 100 .

The utility model realizes an LED projection lamp with novel and simple structure, novel and reasonable light distribution method, uniform and soft light output, high light efficiency, high light utilization rate, and ideal heat dissipation effect.

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 (5)

1. a kind of LED projector lamp, it is characterised in that be provided with the drain pan of some guide-lighting reflective grooves including front end face, lead located at described Some LED light source structures in light reflective groove, it is connected and fixed at the drain pan front end face and the LED light source radome structure is set The light-passing board that gets up, located at the bottom shell and the drive device that is electrically connected with the LED light source structure；

The guide-lighting reflective groove is in the shape of inverted ladder-shaped body, if the medial surface of the guide-lighting reflective groove is provided with dried layer and has leaded light anti- The ring ladder of light action, the guide-lighting reflective groove inner surface is coated with reflector layer；

The drain pan back side extends outwardly out some radiating fins, and the radiating fin is that the segmented for being conducive to ventilation and heat sets Put.

2. a kind of LED projector lamp according to claim 1, it is characterised in that lead between the light-passing board and the drain pan Fixed block and screw is crossed to be attached fixation.

3. a kind of LED projector lamp according to claim 1 and 2, it is characterised in that the drain pan is formed in one structure simultaneously It is made up of heat-conducting metal.

4. a kind of LED projector lamp according to claim 3, it is characterised in that the LED light source structure includes being close to institute State the substrate of guide-lighting reflective trench bottom, some LED lamp beads for being laid on the substrate and being electrically connected with the drive device.

5. a kind of LED projector lamp according to claim 4, it is characterised in that the LED projector lamp also includes being connected to institute State the installation adjusting bracket of drain pan both sides.