Title:
COLOR WHEEL HEAT DISSIPATION DEVICE AND PROJECTION APPARATUS USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/001620
Kind Code:
A1
Abstract:
A color wheel heat dissipation device (10) and a projection apparatus using same. The color wheel heat dissipation device (10) comprises a color wheel substrate (100), a color wheel phosphor portion (200), multiple blades (300) and a current collecting plate (400). The color wheel phosphor portion (200) is provided at the color wheel substrate (100). The multiple blades (300) are provided at intervals around a central axis of the color wheel substrate (100) on a main surface of one side of the color wheel substrate (100). The current collecting plate (400) is annularly arranged around the central axis of the color wheel substrate (100), and covers respective sides of the multiple blades (300) away from the color wheel substrate (100). The current collecting plate (400) partially covers the multiple blades (300) in a radial direction of the color wheel substrate (100), thereby effectively dissipating heat for the color wheel phosphor portion (200).
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Inventors:
DAI DAYAN (CN)
ZHOU HAO (CN)
CHENG MINGHUI (CN)
ZHOU HAO (CN)
CHENG MINGHUI (CN)
Application Number:
PCT/CN2021/099520
Publication Date:
January 06, 2022
Filing Date:
June 10, 2021
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/16
Foreign References:
| JP6392590B2 | 2018-09-19 | |||
| CN104280990A | 2015-01-14 | |||
| CN107479306A | 2017-12-15 | |||
| CN106814526A | 2017-06-09 | |||
| CN212846325U | 2021-03-30 | |||
| CN210605321U | 2020-05-22 | |||
| CN210323746U | 2020-04-14 |
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