Fluorescent wheel heat dissipation structure

Abstract

The invention discloses a fluorescent wheel heat dissipation structure, which mainly relates to the field of laser projection. The fluorescent wheel heat dissipation structure comprises an aluminum-based disc, the surface of the aluminum-based disc is coated with a heat dissipation paint, and the aluminum-based disc is provided with a plurality of heat dissipation groove sets. The fluorescent wheel heat dissipation structure has the beneficial effects that the temperature rise of the fluorescent wheel can be effectively inhibited, and the conversion efficiency of the fluorescent powder to laser is improved.

Description

technical field [0001] The invention relates to the field of laser projection, in particular to a fluorescent wheel heat dissipation structure. Background technique [0002] With the development of technology, laser projection products are developing in the direction of high brightness and miniaturization. As an important part of laser projection products, laser light source is used in more and more high-end projector models due to its advantages of wide color gamut, high brightness, long service life and stable performance. When the laser projection product is working, the laser light source emits high-energy light and irradiates the rotating fluorescent wheel. The fluorescent wheel is coated with a yellow fluorescent medium. After the laser irradiates the fluorescent medium, it is stimulated to radiate a yellow beam, yellow The light beam is irradiated on the color wheel after passing through the optical lens. The optical film coated on the color wheel determines the wave...

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Problems solved by technology

[0003] Now laser projection products are pursuing higher brightness, which requires a higher power laser light source, so the surface temperature of the fluorescent wheel is higher. Excessively high temperature will seriously reduce the efficiency of the fluorescent medium to generate excitation light. When the temperature reaches a certain point will burn the fluorescent wheel or motor

Since dust or dust attached to the fluorescent medium will reduce the conversion efficiency of the fluorescent wheel, the cavity where the fluorescent wheel is located will be sealed. Therefore, the heat dissipation structure that the fluorescent wheel can adopt is extremely limited. In the design of the existing fluorescent wheel , some rely on the surface of the fluorescent wheel to dissipate heat naturally, which is not ideal; some install air-cooling structures and ventilation ducts near the fluorescent wheel, which will increase the internal space and increase the cost; some use the fluorescent wheel Installed on a very large heat-dissipating metal plate, which also leads to a large internal footprint and increased cost

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