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A method for encapsulating LED lamp beads with a high bin rate

A technology of LED lamp beads and packaging methods, which is applied in the direction of semiconductor devices, electrical components, circuits, etc., and can solve the problems of LED product brightness, poor color consistency, uneven distribution of phosphor particle size, and uneven mixing of packaging glue, etc. , to achieve the effects of high screening efficiency, narrow particle size range and low labor cost

Active Publication Date: 2019-01-29
WUHU JUFEI PHOTOELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is that in the existing LED packaging process, the phosphor particle size distribution is uneven, the particle size range is wide, the mixing with the packaging glue is not uniform enough, and the amount of phosphor powder in each packaging bracket is difficult to accurately control and uniform. , resulting in poor brightness and color consistency of LED products, thus proposing a fluorescent powder screening device with more concentrated lamp bead falling bin rate, good brightness and color consistency, and a method for manufacturing LED lamp beads using the device

Method used

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  • A method for encapsulating LED lamp beads with a high bin rate
  • A method for encapsulating LED lamp beads with a high bin rate
  • A method for encapsulating LED lamp beads with a high bin rate

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Embodiment 1

[0034] This embodiment provides a method for packaging LED lamp beads with a high bin drop rate. First, a drum-type phosphor powder screening device is used to screen phosphor powder. The drum-type phosphor powder screening device is as follows: figure 1 As shown, the device includes at least two layers of sieving buckets that are sequentially sleeved from the center to the outside. The wall of each layer of the sieving buckets is provided with sieve holes, and the sieve holes of each layer of sieving buckets are arranged from the inside to the outside. Apertures decrease sequentially, and the screening bucket is also connected with a rotary drive mechanism for driving it to rotate and a vibration mechanism for vibrating it. The rotary drive mechanism is a conventional drive motor, and the vibration mechanism is a vibration motor.

[0035]In this embodiment, the screening barrels are 4 layers, which are set sequentially from the inside to the outside, and the mouths of the barr...

Embodiment 2

[0046] This embodiment provides a drum-type fluorescent powder screening device, the device includes at least two layers of screening barrels set in sequence from the center to the outside, the barrel wall of each layer of the screening barrels is provided with sieve holes, and the The sieve hole diameter of each layer of screening buckets from inside to outside decreases sequentially. The screening bucket is also connected with a rotary drive mechanism for driving its rotation and a vibrating mechanism to vibrate it. The rotary drive mechanism is a conventional drive motor. The vibration mechanism is a vibration motor.

[0047] In this embodiment, the screening barrels are 6 layers, which are set sequentially from the inside to the outside, and the mouths of the barrels are in the same direction. From the inside to the outside, they are the first screening barrel to the sixth screening barrel. The sieve apertures of the sixth sieving buckets decrease successively. In this emb...

Embodiment 3

[0056] This embodiment provides a drum-type fluorescent powder screening device, the device includes at least two layers of screening barrels set in sequence from the center to the outside, the barrel wall of each layer of the screening barrels is provided with sieve holes, and the The sieve hole diameter of each layer of screening buckets from inside to outside decreases sequentially. The screening bucket is also connected with a rotary drive mechanism for driving its rotation and a vibrating mechanism to vibrate it. The rotary drive mechanism is a conventional drive motor. The vibration mechanism is a vibration motor.

[0057] In this embodiment, the screening barrels are 8 layers, which are set sequentially from the inside to the outside, and the mouths of the barrels are in the same direction. From the inside to the outside, they are the first screening barrel to the eighth screening barrel. The sieve apertures of the eighth sieving bucket decrease successively. In this em...

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Abstract

The invention discloses a method for packaging LED lamp beads with a high Bin drop rate. The method is characterized in that a drum-type fluorescent powder screening device is adopted to screen fluorescent powder, wherein the device comprises at least two screening drums which are sequentially arranged in a sleeved manner from the center out, the wall of each screening drum is provided with screening holes, the screening holes of the screening drums are sequentially reduced in diameter from the inside out, and the screening drums are connected to a rotation driving mechanism which drives the screening drums to rotate and a vibration mechanism which enables the screening drums to vibrate. In addition, the device can screen the fluorescent powder automatically, so that the consistency of the fluorescent powder in particle diameter is improved, the work efficiency is high, and the labor cost is low, thereby being suitable for mass industrial production. The screened fluorescent powder is easier to package, and the glue is mixed evenly, so that requirements for a glue stirring process and device and the difficulty in operation are reduced. In addition, the amount of the fluorescent powder in the packaging glue injected into a bracket can be effectively controlled, the brightness and color consistency of packaged LED lamp bead products is improved, the reject ratio is reduced, and the economic benefit of packaging enterprises can be significantly improved.

Description

technical field [0001] The invention belongs to the technical field of LED packaging, and in particular relates to a method for packaging LED lamp beads with a high bin drop rate. Background technique [0002] With the development of semiconductor lighting technology and the vigorous promotion of its application, the light efficiency of LED is constantly improving, and new optical designs are constantly making breakthroughs. It makes LED lighting more convenient, and these huge advances reflect that LED has a broad application prospect in lighting applications. As the fourth-generation light source, LED has the advantages of energy saving, environmental protection, safety, long life, low power consumption, high brightness, waterproof, shockproof, easy dimming, etc., and has gradually been widely used in various fields, such as display, decoration, Backlighting, general lighting, stage lighting, etc. [0003] In the entire industrial chain of LED production, LED packaging i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/00H01L33/50H01L33/54
CPCH01L33/005H01L33/501H01L33/54
Inventor 高丹鹏张志宽邢其彬
Owner WUHU JUFEI PHOTOELECTRIC TECH CO LTD
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