CN217933835U

CN217933835U - 360-degree space uniform light-emitting white light LED element

Info

Publication number: CN217933835U
Application number: CN202221816201.5U
Authority: CN
Inventors: 陈建伟
Original assignee: Shenzhen Good Self Lighting Technology Co ltd
Current assignee: Shenzhen Good Self Lighting Technology Co ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-11-29
Anticipated expiration: 2032-07-13

Abstract

The utility model belongs to the technical field of LED makes to solve phosphor powder among the prior art and blue light photoluminescence inefficiency and the technical problem that the blue light leaked, based on this, provided a 360 degree space white light LED component that evenly gives out light, including not taking anti-light cup LED support, LED chip and wire, be equipped with solid crystal layer on not taking anti-light cup LED support, be equipped with the LED chip on the solid crystal layer, the LED sends out light chip and connects into the electronic circuit by wire, the LED chip with not take anti-light cup LED support on be packaged with the inner colloid, the outer cladding of inner colloid is packaged with phosphor powder mixed colloid, phosphor powder mixed colloid's top thickness be not less than 0.6mm, lateral part thickness is not less than 0.6mm, bottom thickness is not less than 0.5mm. 360 even luminous white light LED component in degree space have luminous even, luminance even and the even advantage of colour.

Description

360-degree space uniform light-emitting white light LED element

Technical Field

The utility model relates to a technical field is made to the LED, especially relates to a 360 degree space white light LED components that evenly give out light.

Background

The basic structure of the existing photoluminescent diode, taking a white light-emitting diode as an example, is basically that a semiconductor light-emitting chip is fixed in a reflective cup in a light-emitting diode support, photoluminescent phosphor is injected into the reflective cup, and then transparent epoxy glue is encapsulated, thereby forming the white light-emitting diode. The current white light emitting diode adopts the color mixing principle: blue + yellow = white light.

The existing white light emitting diode has the following light path transmission path: when a voltage is applied to the pin of the led support, the semiconductor light emitting chip emits light (usually emits blue light), and the short wavelength light excites the photoluminescent phosphor to emit light (usually emits yellow light), which is also called photoluminescence, so that the obtained white light is composite light. The white light is transmitted in the transparent epoxy (medium n 1), and is converged into a beam of white light with strong directivity through the reflecting cup and the convex lens formed by the transparent epoxy glue (1), and the white light has an alpha solid angle (also called a power angle).

The traditional Chinese patent No. ZL201029216005.2 specially facilitates 11/24 2010 and discloses a space uniform light-emitting LED element, an LED light-emitting chip is fixed on an LED support without a light-reflecting cup through a fixing material, the LED light-emitting chip is connected into an electronic circuit through a metal wire, a transparent resin colloid encapsulates and cures the structure to form the space uniform light-emitting LED element, and diffusion materials with a diffusion effect are uniformly distributed in the transparent resin colloid, so that high light efficiency and space light emission (also referred to as 360-degree light emission) can be realized.

However, many disadvantages still exist, the typical problem has hidden danger of blue light leakage, firstly, the structure is a 'fluorescent powder thin layer', and the 'fluorescent powder thin layer' structure is excited by a blue light excitation light source, so that blue light can easily penetrate the 'fluorescent powder thin layer'; secondly, the patent has the disadvantage that the fluorescent powder is precipitated. When the colloid of the phosphor thin layer in the patent adopts epoxy glue, the phosphor is very easy to precipitate in the epoxy colloid, so that the phosphor in the phosphor thin layer is not uniformly distributed. The 'phosphor thin layer' structure and the 'phosphor precipitation' of the patent can cause two problems, one is that the phosphor and blue light photoluminescence efficiency is low, and the other is that blue light is leaked. These two problems will in turn lead to problems of non-uniform light emission, non-uniform brightness, non-uniform color, etc. of the white LED element.

In order to solve the problem, the utility model provides a new solution.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a 360 degree space white light LED component of evenly giving out light for solve among the prior art phosphor powder and blue light photoluminescence inefficiency and the technical problem that the blue light leaked.

The embodiment of the utility model provides a 360 degree space white light LED component that evenly gives out light, including not taking anti-light cup LED support, LED chip and wire, be equipped with solid crystal layer on not taking anti-light cup LED support, be equipped with the LED chip on the solid crystal layer, the LED sends out light chip and connects into electronic circuit by wire, the LED chip with do not take anti-light cup LED support and be packaged with interior colloid, the outer cladding of interior colloid is packaged with phosphor powder mixed colloid, phosphor powder mixed colloid's top thickness be not less than 0.6mm, lateral part thickness be not less than 0.6mm, bottom thickness is not less than 0.5mm.

The working principle and the process are as follows:

after the LED chip is installed on the LED support without the reflection cup through the fixing layer, the LED chip is packaged and fixed through the inner colloid, a layer of fluorescent powder mixed colloid is coated outside the packaged and fixed inner colloid, and the LED chip is fixed on the LED support without the reflection cup, so that the LED chip can be more uniformly emitted to the space; the photoluminescence phosphor powder is uniformly distributed in an optical cavity formed by curing the phosphor powder mixed colloid, and is in the form of crystal particles, after the photoluminescence phosphor powder is excited by the short wavelength of the LED chip, each crystal particle forms a new light emitting source to emit light to the space, and an inner colloid is further distributed in the optical cavity formed by curing the phosphor powder mixed colloid, wherein the inner colloid has the function of scattering light, and the light emitted by the LED chip and the reflection and refraction effect of the light emitted by the photoluminescence phosphor powder after being excited in the optical cavity formed by the phosphor powder mixed colloid are generated in the transmission process, so that the uniform 360-degree space light emission can be realized.

Further, the inner colloid is epoxy glue or silica gel.

Furthermore, the diffusion material is uniformly mixed in the inner colloid.

The arrangement of the diffusion material is beneficial to diffusing the light source, so that the light emitting element can emit light more fully and uniformly.

Further, the phosphor mixed colloid is epoxy glue or silica gel.

Furthermore, the diffusion material is uniformly mixed in the fluorescent powder mixed colloid.

Furthermore, the anti-precipitation material is uniformly mixed in the fluorescent powder mixed colloid.

The arrangement of the anti-precipitation material can prevent the photo-induced fluorescent powder from being unevenly distributed due to precipitation, and the brightness uniformity and the luminous effect are influenced.

Further, the diffusion material is an organic diffusion material or an inorganic diffusion material or a diffusion material mixed by organic and inorganic materials.

To sum up, the utility model has the advantages that:

the utility model prevents the leakage of blue light through the arrangement of the phosphor mixed colloid with thicker thickness, can effectively avoid the damage of the blue light to human eyes, and can realize no dazzling and no glare; the white light with uniform light emission, uniform brightness and uniform color can be obtained in any direction of a three-dimensional space by matching the photoluminescence fluorescent powder in the fluorescent powder mixed colloid, the 360-degree space light-emitting effect with uniform light emission, uniform brightness and uniform color can be realized in a smaller or minimum space besides the white light with uniform light emission in a larger space, and the mainstream development direction of current LED illumination, namely the requirement of an LED healthy light source, can be met.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic size diagram of the phosphor mixed colloid of the present invention.

In the figure: 1. the LED bracket without the reflection cup; 2. an LED chip; 3. solidifying a crystal layer; 4. a metal wire; 5. an inner colloid; 6. phosphor mixed colloid; d1, the thickness of the top of the fluorescent powder mixed colloid; d2, the thickness of the lateral part of the fluorescent powder mixed colloid; d3, the thickness of the bottom of the fluorescent powder mixed colloid.

Detailed Description

Example 1:

as shown in fig. 1-2, a 360-degree space uniform light-emitting white light LED element comprises a light-emitting diode (LED) support 1 without a light-reflecting cup, wherein the LED support 1 without a light-reflecting cup is a silver-plated iron support, an LED chip 2 and a metal wire 4 are provided, the LED chip 2 is a blue-light forward chip, a solid crystal layer 3 is provided on the LED support 1 without a light-reflecting cup, the solid crystal layer 3 is solid crystal glue, the LED chip 2 is provided on the solid crystal layer 3, the LED light-emitting chip 2LED is connected by the metal wire 4 to form an electronic circuit, an inner colloid 5 is encapsulated on the LED chip 2 and the LED support 1 without a light-reflecting cup, an outer layer of the inner colloid 5 is encapsulated with a phosphor mixed colloid 6, the top thickness of the phosphor mixed colloid 6 is not less than 0.6mm, the side thickness is not less than 0.6mm, and the bottom thickness is not less than 0.5mm.

The working principle and the process are as follows:

after the LED chip 2 is installed on the LED support 1 without the reflecting cup through the fixing layer, the LED chip 2 is packaged and fixed through the inner colloid 5, the outer side of the packaged and fixed inner colloid 5 is coated with a layer of fluorescent powder mixed colloid 6, and the LED chip 2 is fixed on the LED support 1 without the reflecting cup, so that the LED chip 2 can be more uniformly emitted to the space; the photoluminescence phosphor powder is uniformly distributed in an optical cavity formed by curing the phosphor powder mixed colloid 6, the photoluminescence phosphor powder exists in a crystal particle shape, after the photoluminescence phosphor powder is excited by the short wavelength of the LED chip 2, each crystal particle forms a new light emitting source to emit light to a space, in the optical cavity formed by curing the phosphor powder mixed colloid 6, an inner colloid 5 is also distributed, the inner colloid 5 has the function of scattering light, and in addition, the light emitted by the LED chip 2 and the reflection and refraction effect generated in the transmission process of the light emitted by the excited photoluminescence phosphor powder in the optical cavity formed by the phosphor powder mixed colloid 6 can realize the emission of the uniform 360-degree space.

In another embodiment of the present invention, the inner colloid 5 is epoxy glue or silica gel.

In another embodiment of the present invention, the inner colloid 5 is uniformly mixed with the diffusion material.

In another embodiment of the present invention, the phosphor mixed colloid 6 is epoxy glue or silica gel.

In another embodiment of the present invention, the phosphor mixed colloid 6 is uniformly mixed with the diffusion material.

In another embodiment of the present invention, the anti-deposition material is uniformly mixed inside the phosphor mixed colloid 6.

In another embodiment of the present invention, the diffusion material is an organic diffusion material or an inorganic diffusion material or a diffusion material mixed with organic and inorganic materials.

The inner colloid 5 is epoxy AB glue, the colloid of the phosphor mixed colloid 6 is epoxy AB glue, the diffusion material is diffusion glue, and the anti-precipitation material is anti-precipitation starch material.

The production process method comprises the following steps:

preparing work 1, blending the inner colloid 5 epoxy AB glue according to a proportion, stirring uniformly to prepare the inner colloid 5, and then vacuumizing for later use.

The preparation 2 is to mix the phosphor powder, the diffusion glue of the diffusion material, the anti-precipitation material of the anti-precipitation material, and the epoxy AB glue of the phosphor powder mixed colloid 6 in proportion, to prepare the phosphor powder mixed colloid 6 after stirring uniformly, and to vacuumize for use.

Firstly, a die bonding material 3 is dotted on a die bonding surface of an LED bracket 1 without a reflection cup, then an LED chip 2 is fixed on the die bonding material, and then baking and curing are carried out.

And step two, realizing bonding between the LED chip 2 and the LED bracket 1 without the reflection cup by using a metal wire 4 to form circuit connection.

And step three, encapsulating the inner colloid 5 on the LED chip 2 and the LED support 1 without the reflection cup, and then baking and curing.

And step four, coating and packaging the fluorescent powder mixed colloid 6 on the outer layer of the inner colloid 5, enabling the top thickness of the fluorescent powder mixed colloid 6 to be more than or equal to 0.6mm, the side thickness to be more than or equal to 0.6mm and the bottom thickness to be more than or equal to 0.5mm, and then baking and curing.

And step five, entering a bracket punching process to finish the whole specific embodiment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims

1. The 360-degree space uniform light-emitting white light LED element comprises an LED support without a reflection cup, an LED chip and a metal wire, and is characterized in that a solid crystal layer is arranged on the LED support without the reflection cup, the solid crystal layer is provided with the LED chip, the LED light-emitting chip is connected into an electronic circuit through the metal wire, inner colloid is packaged on the LED chip and the LED support without the reflection cup, the outer layer of the inner colloid is packaged with fluorescent powder mixed colloid, the top thickness of the fluorescent powder mixed colloid is not less than 0.6mm, the side thickness of the fluorescent powder mixed colloid is not less than 0.6mm, and the bottom thickness of the fluorescent powder mixed colloid is not less than 0.5mm.

2. A 360 degree spatially uniform illumination white LED element as claimed in claim 1 wherein the internal encapsulant is epoxy or silicone.

3. A 360 degree spatially uniform emission white LED element according to claim 2, wherein said inner gel has a diffusion material uniformly mixed therein.

4. The 360 degree spatially uniform white LED device of claim 1, wherein the phosphor mixed gel is epoxy or silica gel.

5. A360 degree spatially uniform emission white LED element as claimed in claim 4 wherein said phosphor mixed gel has a diffusion material uniformly mixed therein.

6. A 360 degree spatially uniform emission white LED element as claimed in claim 1 wherein the phosphor mixed gel has an anti-settling material uniformly mixed therein.

7. A360-degree spatially uniform light-emitting white LED element according to claim 3 or 5, wherein the diffusion material is an organic diffusion material or an inorganic diffusion material or a diffusion material mixed with organic and inorganic materials.