CN214956926U

CN214956926U - Large-angle luminous patch type LED

Info

Publication number: CN214956926U
Application number: CN202120896850.XU
Authority: CN
Inventors: 索薪涛; 胡娅; 胡松
Original assignee: Dongguan Youshun Photoelectric Co ltd
Current assignee: Dongguan Youshun Photoelectric Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-30
Anticipated expiration: 2031-04-28

Abstract

The utility model provides a SMD LED that wide-angle is luminous, including LED support, LED chip and transparent packaging body, the LED support includes electrode foot and transparent base, and transparent base sets firmly on the electrode foot, and transparent base's surface includes periphery face and upper surface, and transparent base's periphery face is cambered surface one, is equipped with on the transparent base and holds the cup, and the interior periphery face that holds the cup is cambered surface two, and the LED chip is located and holds the cup and is connected with the electrode foot electricity, and transparent packaging body is filled in holding the cup. The utility model discloses a luminous angle is big, makes the utility model discloses can not use convex lens, the cost is reduced.

Description

Large-angle luminous patch type LED

Technical Field

The utility model relates to a LED field specifically is a SMD LED is sent out to wide-angle.

Background

The surface-mounted LED belongs to a point light source, has the advantages of long service life, small volume, high brightness, low heat and the like, and is widely applied to the field of illumination. As shown in fig. 5, in the prior art, a chip-mount LED includes an LED support, an LED chip a2, and an encapsulant A3, where the LED support includes an electrode pin a11 and a base a12, the base a12 is generally made of non-transparent plastic, the electrode pin a11 is fixedly connected to the base a12, a reflective cup a121 is disposed on the base a12, the LED chip a2 is located in the reflective cup a121 and electrically connected to the electrode pin a11 through a gold wire a4, the encapsulant A3 is filled in the reflective cup a121, the encapsulant A3 generally includes glue and phosphor, after the chip-mount LED is powered on, the non-transparent base a12 makes light emitted from the LED chip a2 finally emitted to the outside through the upper surface of the encapsulant A3, the light-emitting angle of the chip-mount LED is smaller, and when the light-emitting angle of the chip-mount LED needs to be increased, a convex lens B1 is generally disposed on the chip-mount LED to enlarge the light-emitting angle of the chip-mount LED, and the convex lens B1 increases the light-emitting cost.

Disclosure of Invention

An object of the utility model is to provide a SMD LED is sent out to wide-angle to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a SMD LED that large-angle is luminous, includes LED support, LED chip and transparent packaging body, the LED support includes electrode foot and transparent base, transparent base sets firmly on the electrode foot, transparent base's surface includes surrounding surface and upper surface, the surrounding surface is outside convex cambered surface one, be equipped with on the transparent base and hold the cup, the interior surrounding surface that holds the cup is outside convex cambered surface two, the LED chip is located and holds the cup and is connected with the electrode foot electricity, transparent packaging body fills in holding the cup.

The utility model has the advantages that:

compared with the prior art, the utility model discloses a set up the light that transparent base made the LED chip send and can penetrate transparent base and jet out the external world, realize enlarging the utility model discloses a luminous angle can also reduce the number of times that this light carries out the reflection in holding the cup effectively through transparent base, has reduced the light loss, has improved the light-emitting rate, successively adjusts in order further to enlarge to the direction of this light refraction through periphery and interior periphery the utility model discloses a luminous angle, the final manifestation the utility model has the advantages of big luminous angle, make the utility model discloses can not use convex lens, the cost is reduced.

Drawings

FIG. 1: a schematic top view of a large-angle light-emitting patch type LED is provided.

FIG. 2: a first A-A section schematic diagram of a large-angle luminous patch type LED.

FIG. 3: A-A section schematic diagram of a large-angle luminous patch type LED is shown.

FIG. 4: a schematic diagram of a local ray path of a large-angle luminous patch type LED is provided.

FIG. 5: the overall structure of the prior art is schematic.

Detailed Description

The invention is further explained below with reference to the drawings:

referring to fig. 1 and 2, a large-angle light-emitting surface-mounted LED includes an LED support 1, an LED chip 2, and a transparent package 3, where the LED support 1 includes an electrode pin 11 and a transparent base 12, the transparent base 12 is fixed on the electrode pin 11 by injection molding, the outer surface of the transparent base 12 includes a peripheral surface 121 and an upper surface 122, the peripheral surface 121 of the transparent base 12 is a first arc surface protruding outward, the transparent base 12 is provided with a containing cup, an inner peripheral surface 124 of the containing cup is a second arc surface protruding outward, the electrode pin 11 includes a positive electrode region 111 and a negative electrode region 112, a partition strip 123 is disposed between the positive electrode region 111 and the negative electrode region 112, the partition strip 123 and the transparent base 12 are in an integral injection molding structure, the LED chip 2 is located in the containing cup, when the LED chip 2 is a forward-mounted chip, a gold thread and a negative electrode of the LED chip 2 are respectively connected with the positive electrode region 111 and the negative electrode region 112 through a gold thread, when the LED chip 2 is a flip chip, the anode and the cathode of the LED chip 2 are connected to the anode region 111 and the cathode region 112 through the silver paste, respectively, and the transparent package 3 is filled in the containing cup.

Referring to fig. 1, the shape of the transparent base 12 is not limited to circular, and the shape of the transparent base 12 can be diversified to meet the requirements of different light-emitting shapes, so as to achieve the effect of improving visual freshness.

Referring to fig. 2, the upper surface 122 of the transparent base 12 may be a three-arc surface protruding outward, and referring to fig. 3, the upper surface 122 of the transparent base 12 may also be a plane.

Please refer to fig. 2 and 4, the utility model discloses a set up light that transparent base 12 made LED chip 2 send and can penetrate transparent base 12 and jet out the external world, realize enlarging the utility model discloses a luminous angle has reduced the number of times that this light carries out the reflection in holding the cup effectively through transparent base 12, has reduced the light loss, has improved the light-emitting rate, successively adjusts in order to further enlarge this light refraction's direction through periphery 121 and interior periphery 124 the utility model discloses a luminous angle, finally embodies the utility model has the advantage of big luminous angle.

Also included is a phosphor for converting some of the invisible light to visible light, the phosphor being distributed in the transparent base 12.

Transparent packaging body 3 and transparent base 12 are all lighted by the light that LED chip 2 sent, compare with transparent base 12, transparent base 12 is far away from LED chip 2's distance, and when this light contact transparent packaging body 3 and the binding face of transparent base 12, during a few in this light can reflect so as to fail to get into transparent base 12, finally make transparent base 12's luminance be less than transparent packaging body 3's luminance slightly, can improve transparent base 12's luminance through the phosphor powder, make transparent packaging body 3 and transparent base 12's luminance tend to unanimously, avoid appearing bright dark difference.

And a diffusion powder for more uniform distribution of light to improve uniformity of light efficiency, the diffusion powder being distributed in one or both of the transparent package 3 and the transparent base 12.

The transparent packaging body 3 and the transparent base 12 are made of the same material, so that the transparent packaging body 3 and the transparent base 12 are easily combined to improve the sealing performance between the transparent packaging body 3 and the transparent base 12, and sulfides in air can be effectively prevented from entering the containing cup through the transparent packaging body 3 and the transparent base 12 to corrode the electric connection position of the LED chip 2 and the electrode pin 11, so that the LED chip 2 fails.

An anti-seepage structure (not shown in the figure) is further arranged between the electrode pin 11 and the transparent base 12, and is used for prolonging a path of sulfide in air entering the accommodating cup 121, so that the probability that the sulfide enters the accommodating cup 121 to corrode the electric connection position of the LED chip 2 and the electrode pin 11 can be greatly reduced.

The anti-seepage structure comprises a groove and a protrusion, the groove is formed in the positive electrode region 111 and the negative electrode region 112, the protrusion and the transparent base 12 are of an integral injection molding structure, and the protrusion is located below the transparent base 12 and embedded in the groove.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A SMD LED that wide-angle is luminous which characterized in that: including LED support, LED chip and transparent packaging body, the LED support includes electrode foot and transparent base, transparent base sets firmly on the electrode foot, transparent base's surface includes peripheral face and upper surface, the peripheral face is outside convex cambered surface one, be equipped with on the transparent base and hold the cup, the interior peripheral face that holds the cup is outside convex cambered surface two, the LED chip is located and holds the cup and be connected with the electrode foot electricity, transparent packaging body is filled in holding the cup.