LED phosphor stirring device with multiple layers of vanes

Abstract

Embodiments in the invention disclose a LED phosphor stirring device with multiple layers of vanes. In the prior art, stirring vanes of conventional phosphor stirring devices are arranged at the bottoms of stirring barrels, so stirring can only be carried out at the bottoms of stirring barrels, and phosphors located at the upper layers of containers are not sufficiently stirred, which is unfavorable for uniform mixing of phosphor glue; and the phosphor glue must be stirred in a vacuum environment, and if vacuum stirring effect is poor, the phosphor glue is filled with bubbles and cannot be sufficiently mixed, so the quality of LED lamps cannot be guaranteed. The LED phosphor stirring device with multiple layers of vanes in the invention overcomes the above-mentioned technical problems and comprises a stirring shaft, a stirring barrel, a feed inlet, a discharge outlet, a motor, a vacuum-pumping port and stirring vanes, wherein the stirring barrel is connected with the motor; the stirring shaft is arranged in the stirring barrel; one end of the stirring shaft is connected with the motor; the other end of the stirring shaft is connected with at least one layer of the stirring vanes; the vacuum-pumping port and the feed inlet are formed in the top of the stirring barrel; and the discharge outlet is formed in the bottom of the stirring barrel.

Description

Technical field [0001] The invention relates to the field of stirring, in particular to a multilayer blade LED phosphor stirring device. Background technique [0002] Phosphor powder is an important material for the production of LEDs. In the powder mixing process of LED production, the characteristics of the powder glue change with the environment and time, resulting in great fluctuations in product quality. The stability of the phosphor glue in the existing process is not good. , The phosphor after powder preparation will slowly deposit on the bottom of the container due to the effect of gravity, which causes the concentration of phosphor at the bottom of the container to increase and the viscosity becomes larger. In addition, the phosphor often agglomerates and its particle size distribution is relatively large. Some phosphors have large particle diameters. After the planetary vacuum degassing mixer is stirred, the phosphors are often deposited on the bottom of the container, ...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a multi-blade LED fluorescent powder stirring device, which solves the problem that the stirring blades of the traditional fluorescent powder stirring device are all at the bottom of the mixing bucket, so it can only be stirred at the bottom of the bucket, and the upper layer of the container Because the phosphor powder cannot be fully stirred, it is not conducive to the uniform mixing of the phosphor powder glue, and the powder glue must be stirred in a vacuum environment. If the vacuum stirring effect is not good, the powder glue will be full of air bubbles, and the powder glue cannot If the mixing is sufficient, the quality of LED lights cannot be guaranteed.

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