CN107681036A - LED encapsulation structure - Google Patents

Abstract

The present invention provides an LED packaging structure, which includes an LED bracket and a chip. The LED bracket includes a bracket body, a metal bracket and a reflector. A cavity is opened on the top of the bracket body to accommodate the LED chip. The metal bracket extends into the cavity of the stent main body, and protrude out of the stent main body to form pins, the reflector is arranged above the chip at a position corresponding to the chip, and there is a gap between the chip and the chip At intervals, the metal bracket includes protrusions that protrude toward the reflector, thereby forming a slope. In this LED packaging structure, by setting a reflector above the chip, part of the light emitted from the chip is directed directly above and then reflected by the reflector to the side wall or bottom wall of the cavity, which can prevent the light from going out directly. Solved the glare of the light problem.

Description

LED package structure

technical field

The invention relates to the technical field of LEDs, in particular to an LED packaging structure.

Background technique

At present, LED devices have been increasingly widely used due to their advantages of low energy consumption, long life, fast response and high luminous efficiency, such as backlight of liquid crystal display devices and daily lighting. When LEDs are used for daily lighting, the light directly emitted by LED lamps is very dazzling. The way to prevent the glare of LED lights is generally: cover the LED lights with a frosted glass cover; wrap the LED lights with light-colored cloth; or cover the LED lights with a plastic shell. However, the above methods will affect the brightness of the LED lamp.

Contents of the invention

The purpose of the present invention is to provide a non-glare and high brightness LED packaging structure.

The present invention provides an LED packaging structure, which includes an LED bracket and a chip. The LED bracket includes a bracket body, a metal bracket and a reflector. A cavity is opened on the top of the bracket body to accommodate the LED chip. The metal bracket extends into the cavity of the stent body, and protrude out of the stent body to form pins, the reflector is set above the chip at a position corresponding to the chip, and there is a gap between the chip and the chip At intervals, the metal bracket includes protrusions that protrude toward the reflector, thereby forming a slope.

In this LED packaging structure, by setting a reflector above the chip, part of the light emitted from the chip is directed directly above and then reflected by the reflector to the side wall or bottom wall of the cavity and then reflected, which can prevent the light from going out directly, to a certain extent Solved the glare of the light problem.

In one embodiment, the metal support includes two slopes and a plane connected between the two slopes, and the chip is disposed on the plane.

In one embodiment, the bottom of the cavity protrudes toward one side of the reflector to form a convex hull, and the slope is provided on the convex hull.

In one embodiment, the cavity includes an opening, and the reflector is disposed at the opening and covers a part of the opening.

In one embodiment, the cavity is in the shape of a trumpet with a large top and a small bottom, thereby forming inclined side walls.

In one embodiment, the chip is disposed at the bottom of the cavity and disposed on the metal support.

In one embodiment, the LED package further includes an encapsulation layer, and the encapsulation layer is filled in the cavity of the bracket main body.

In one embodiment, the reflector is embedded in the encapsulation layer.

In one embodiment, the reflector includes an inclined reflective surface.

In one embodiment, the reflector includes two intersecting reflective surfaces.

Description of drawings

1 is a schematic structural view of an LED packaging structure according to a first embodiment of the present invention;

FIG. 2 is a structural schematic diagram of another embodiment of the reflector of the LED package structure shown in FIG. 1;

3 is a schematic structural diagram of an LED packaging structure according to a second embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an LED packaging structure according to a third embodiment of the present invention.

detailed description

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

As shown in FIG. 1 , the LED package structure provided by the first embodiment includes an LED bracket and a chip 80 , and the LED bracket includes a bracket body 10 , a metal bracket 30 and a reflector 50 . A cavity 102 is opened on the top of the bracket main body 10 for accommodating the LED chip 80 . The metal bracket 30 extends into the cavity 102 of the bracket body 10 , and protrudes out of the bracket body 10 to form pins 301 . The reflector 50 is disposed above the chip 80 at a position corresponding to the chip 80 , and there is a space between the chip 80 and the chip 80 .

By setting the reflector 50 above the chip 80, part of the light emitted from the chip 80 is directed directly above and then reflected by the reflector 50 to the side wall or bottom wall of the cavity 102 and then reflected, which can prevent the light from going out directly. Solved the problem of glare of light.

The cavity 102 includes an opening 104 , and the reflector 50 is disposed at the opening 104 and covers a part of the opening 104 . In this way, the light is emitted from the position where the opening 104 is not shielded by the reflector 59 .

The cavity 102 is in the shape of a trumpet with a large top and a small bottom, thereby forming inclined side walls. Specifically, a reflective layer may be coated on the sidewall of the cavity 102 . The inclined sidewall is convenient for reflecting the light and emitting it from the opening 104 .

In this embodiment, the metal bracket 30 is flat and disposed at the bottom of the cavity 102 .

In this embodiment, the reflector 50 is flat. Please refer to FIG. 2 , the reflector 50 may also include an inclined reflective surface 502 . In this way, the reflector 50 can change the outgoing angle of the light, so that the light is reflected to the side wall and the bottom wall of the cavity 102 and then reflected. Specifically, the reflector 50 includes two intersecting reflective surfaces 502 . More specifically, the included angle between the two reflective surfaces 502 is an obtuse angle. A reflective layer is provided on a side of the reflective member 50 facing the chip 80 .

The chip 80 is disposed at the bottom of the cavity 102 and disposed on the metal support 30 .

The LED package also includes an encapsulation layer 90, which fills the cavity 102 of the bracket body 10, and encapsulates the chip 80 to achieve sealing. Specifically, the reflector 50 can be embedded in the encapsulation layer 90 , of course, the reflector 50 can also be fixed on the encapsulation layer 90 in other ways.

As shown in FIG. 3 , the structure of the LED packaging structure of the second embodiment of the present invention is similar to that of the first embodiment, the only difference is that the metal bracket 30 is not flat, and the metal bracket 30 includes a reflector 50 Convex protrusions 302 , forming ramps 304 . In this way, it is convenient for the light reflected by the reflector 50 to change its exit angle and exit from the opening 104 after being reflected. Specifically, the metal support 30 includes two slopes 304 and a plane 306 connected between the two slopes 304 , and the chip 80 is disposed on the plane 306 . Specifically, a reflective film may be coated on the slope 304 to enhance the reflective effect.

In the second embodiment, the bottom of the cavity 102 protrudes toward one side of the reflector 50 to form a convex hull 108, and the slope 304 and the flat surface 306 are arranged on the convex hull 108, so that the bracket body 10 can better support the metal bracket 30 .

It can be understood that the LED package structure of the second embodiment can also use the reflective plate 50 shown in FIG. 2 .

As shown in Fig. 4, the structure of the LED packaging structure of the third embodiment of the present invention is similar to that of the LED packaging structure of the second embodiment, the only difference is that the cavity 102 of the bracket body 10 of the LED packaging structure of the third embodiment The bottom of is flat and has no convex hull. It can be understood that the LED packaging structure of the third embodiment can also use the reflective plate 50 shown in FIG. 2 .

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any skilled person familiar with the profession, Without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but as long as it does not depart from the content of the technical solution of the present invention, the technical essence of the present invention is Any simple modifications, equivalent changes and modifications made in the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A kind of LED encapsulation structure, it is characterized in that, comprises LED support and chip (80), and described LED support comprises support main body (10), metal support (30) and reflector (50), and described support main body (10 ) is provided with a cavity (102) on the top to accommodate the LED chip (80), the metal bracket (30) extends into the cavity (102) of the bracket body (10), and extends to the Pins (301) are formed on the outside of the bracket main body (10), and the reflector (50) is arranged above the chip (80) at a position corresponding to the chip (80), and leaves a gap between the chip (80) and the chip (80). With intervals, the metal bracket (30) includes a protrusion (302) protruding toward the reflector (50), thereby forming a slope (304). 2. The LED packaging structure according to claim 1, wherein the metal bracket (30) comprises two slopes (304) and a plane (306) connected between the two slopes (304), The chip (80) is disposed at the plane (306). 3. The LED packaging structure according to claim 1 or 2, characterized in that, the bottom of the cavity (102) protrudes toward one side of the reflector (50) to form a convex hull (108), the The slope (304) is arranged on the convex hull (108). 4. The LED packaging structure according to claim 1, characterized in that, the cavity (102) comprises an opening (104), and the reflector (50) is arranged at the opening (104) and shields the A portion of the opening (104). 5. The LED packaging structure according to claim 1, characterized in that, the cavity (102) is in the shape of a trumpet with a large top and a small bottom, so as to form inclined side walls. 6. The LED packaging structure according to claim 1, characterized in that, the chip (80) is disposed at the bottom of the cavity (102) and disposed on the metal support (30). 7. The LED package structure according to claim 1, characterized in that, the LED package further comprises an encapsulation layer (90), and the encapsulation layer (90) is filled in the cavity of the bracket body (10) (102). 8. The LED package structure according to claim 7, characterized in that, the reflector (50) is embedded in the package layer (90). 9. The LED package structure according to claim 1, characterized in that, the reflector (50) comprises an inclined reflective surface (502). 10. The LED packaging structure according to Claim 9, characterized in that, the reflector (50) comprises two intersecting reflective surfaces (502).