CN204313115U - Light source structure of an LED floodlight - Google Patents

Abstract

The utility model relates to the technical field of floodlights, and in particular to a light source structure of an LED floodlight; it includes a reflective cup and a hollow heat dissipation body, the reflective cup includes an open cup body and a cup bottom, the upper end surface of the heat dissipation body is fixedly connected to the cup bottom, and multiple LED light sources are evenly distributed on the outside of the heat dissipation body, each LED light source faces the inner wall surface of the open cup body, and the light of the LED light source is reflected through the inner wall surface of the open cup body. When the LED light source is working and emitting light, the light is directly emitted to the inner wall surface of the open cup body, and then the light is reflected and emitted by the inner wall surface, changing the irradiation mode of the traditional direct irradiation LED floodlight to reflected emission, and the emitted irradiation surface is relatively uniform, and the light is soft and not dazzling.

Description

Light source structure of an LED floodlight

technical field

The utility model relates to the technical field of floodlights, in particular to a light source structure of an LED floodlight.

Background technique

With the continuous breakthrough of LED technology, especially the successful development of high-power and high-efficiency LED, LED has been widely used in various lighting fields, such as LED floodlights can be used for tunnel lighting, stage lighting, field construction lighting, advertising lighting , Appearance wall lighting, road lighting, landscape lighting and storage lighting, etc., regardless of energy saving and lighting effects are quite ideal, LED floodlights have the effect of highlighting the illuminated objects. In the existing LED floodlights, an LED light source is generally installed at the center of the shell. Such a light source layout makes most of the light emitted by the LED light source directly irradiate outward. However, the LED floodlight with this structure reaches the target. function, but most of the light is directly emitted, and the light is too strong. In such a strong light environment, people's eyes are prone to blurred vision, which affects normal work.

Utility model content

The utility model provides a light source structure of an LED floodlight aiming at the problems of the prior art, and changes the illumination mode of the traditional direct illumination LED floodlight into reflection emission, and the irradiation surface of the emission is relatively uniform, and the light is soft and not dazzling .

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A light source structure for an LED floodlight, comprising a reflector cup, the reflector cup includes an open cup body and a cup bottom, and a hollow heat dissipation body, the upper end surface of the heat dissipation body is fixedly connected to the cup bottom, and the A plurality of LED light sources are distributed on the outer side of the heat dissipation body, and the light of the LED light sources is reflected through the inner wall surface of the open cup body.

Wherein, the heat dissipation body is a polygonal heat dissipation body composed of a plurality of heat dissipation fins, and a heat dissipation gap for convection heat dissipation is provided between two adjacent heat dissipation fins.

Preferably, the LED light source is an SMT-packaged LED lamp bead, and the LED lamp beads are distributed at intervals along the length direction of the surface of the heat sink.

Further, the lower end of the heat dissipation body is provided with a central light-shielding cover, and a plurality of plug-in terminals are arranged above the central light-shielding cover, and the central light-shielding cover is detachably connected to the lower end of the heat sink through the plug-in terminals.

Wherein, the upper end of the heat dissipation main body is provided with at least three fixing through holes, and the bottom of the cup is provided with connecting through holes opposite to the fixing through holes; a rivet is arranged between the fixing through holes and the connecting through holes, and the The heat dissipation main body is fixedly connected with the bottom of the cup through rivets.

The beneficial effects of the utility model:

The light source structure of an LED projection lamp provided by the utility model includes a reflective cup and a hollow heat dissipation main body. The reflective cup includes an open cup body and a cup bottom. The upper end surface of the heat dissipation main body is fixed to the cup bottom Connected, there are multiple LED light sources evenly distributed on the outside of the cooling body, and the light from the LED light sources is projected out through the inner wall of the open cup body. When the LED light source is working and emitting light, the light directly shoots to the inner wall surface of the open cup body, and then the light is reflected by the inner wall surface, changing the irradiation mode of the traditional direct-irradiated LED floodlight to reflected emission, and the emitted irradiation surface is relatively Even, and the light is soft, not dazzling.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a light source structure of an LED floodlight according to the present invention.

Fig. 2 is a structural exploded schematic view of a light source structure of an LED floodlight according to the present invention.

Reference numerals in Figures 1 to 2 include:

1—reflective cup 11—open cup body 12—cup bottom

2—Heat Dissipation Main Body 21—Heat Sink 3—LED Lamp Bead

4—Central light-shielding cover 5—Plug terminal 6—Fixed through hole

7—Connection through hole 8—Rivet.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not limitations of the utility model. Referring to Fig. 1 to Fig. 2, the utility model will be described in detail below in conjunction with the accompanying drawings.

The light source structure of an LED floodlight provided by the utility model includes a reflective cup 1, the reflective cup 1 includes an open cup body 11 and a cup bottom 12, and the reflective cup 1 is formed by spinning aluminum, which not only has Ensure the angle of the light beam, and also play a role in heat dissipation. The utility model also includes a hollow heat dissipation main body 2, the heat dissipation main body 2 is made of a material with better thermal conductivity; A plurality of LED light sources are distributed, and each LED light source faces the inner wall surface of the open cup body 11 , and the light of the LED light source is reflected by the inner wall surface of the open cup body 11 . As shown in FIG. 1 , the LED light source adopts a module array structure, and light sources are evenly distributed around the circumference of the heat dissipation body 2 , so that the light-emitting surface is very uniform. When the LED light source is working and emitting light, the light directly shoots to the inner wall surface of the open cup body, and then the light is reflected by the inner wall surface, changing the irradiation mode of the traditional direct-irradiated LED floodlight to reflected emission, and the emitted irradiation surface is relatively Even, and the light is soft, not dazzling.

In the present utility model, the heat dissipation main body 2 is a polygonal heat dissipation main body composed of a plurality of heat dissipation fins 21, and a heat dissipation gap for convection heat dissipation is arranged between adjacent two heat dissipation fins 21; There is a gap between the two heat sinks 21 to form convection, which enhances the heat dissipation effect.

Preferably, the LED light source is an SMT packaged LED lamp bead 3 , and the LED lamp bead 3 is distributed at intervals along the length direction of the surface of the heat sink 21 . The LED lamp beads 3 are distributed on the surface of the heat sink 21 at intervals along the length direction. On the one hand, a larger light-emitting surface of the light source can be obtained. The LED lamp beads 3 can be installed in a wider position. On the other hand, the LED lamp beads 3 can be evenly distributed The heat makes the heat dissipation body 2 evenly heated. Therefore, the heat dissipation body 2 absorbs and releases the heat emitted by the LED lamp bead 3 more uniformly, and the utilization rate of the heat sink is better.

Further, the lower end of the heat dissipation body 2 is provided with a central light-shielding cover 4, and the central light-shielding cover 4 is used in the middle to avoid central glare, which solves the problem of central glare of the lamp and makes the light output of the lamp softer. A plurality of plug-in terminals 5 are arranged above the central light-shielding cover 4, and the central light-shielding cover 4 is detachably connected to the lower end of the heat sink 21 through the plug-in terminals 5, and the installation is simple and fast.

In the present invention, the upper end of the heat dissipation body 2 is provided with at least three fixing through holes 6, and the cup bottom 12 is provided with connecting through holes 7 opposite to the fixing through holes 6; Rivets 8 are provided through the holes 7 , and the heat dissipation body 2 is fixedly connected to the cup bottom 12 through the rivets 8 . The whole heat dissipation main body 2 and the reflector 1 are riveted with rivets 8, which avoids the cumbersome process of fixing by screw tapping. In addition, the rivet 8 is very simple in the process of installation and replacement, and is relatively stable and not easy to loosen.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (5)

1. the light-source structure of a LED projector lamp, include reflector, this reflector comprises at the bottom of uncovered cup body and cup, it is characterized in that: the heat sink body also including hollow type, the upper surface of described heat sink body is fixedly connected with at the bottom of cup, heat sink body outside be distributed with multiple LED light source, the light of LED light source is reflected away by the internal face of uncovered cup body.

2. the light-source structure of a kind of LED projector lamp according to claim 1, is characterized in that: described heat sink body is the polygon heat sink body be made up of polylith fin, is provided with the heat radiation gap being convenient to heat loss through convection between two pieces of adjacent fin.

3. the light-source structure of a kind of LED projector lamp according to claim 2, is characterized in that: described LED light source is the LED lamp bead of SMT encapsulation, and described LED lamp bead is spaced apart along fin surface length direction.

4. the light-source structure of a kind of LED projector lamp according to claim 2, it is characterized in that: the lower end of described heat sink body is provided with center lucifuge lid, above the lucifuge lid of center, be provided with multiple inserting terminal, described center lucifuge lid is removably connected by the lower end of inserting terminal and fin.

5. the light-source structure of a kind of LED projector lamp according to claim 1, is characterized in that: the upper end of described heat sink body is provided with at least three fixed vias, and at the bottom of described cup, relatively described fixed via is provided with connecting through hole; Throughly between fixed via and connecting through hole be provided with rivet, described heat sink body is fixedly connected with at the bottom of cup by rivet.