Projection device

• Main Authors: Xiao Qihong, Wu Zongxun
• Format: Patent
• Language: Chinese; English
• Published: 10.08.2016
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS

Provided in the invention is a projection device comprising a housing, an optical machine assembly, a fan, and a lamp holder. The housing has a first air port and a second air port, wherein the two ports are opposite to each other. The optical machine assembly is arranged in the housing. The fan arranged in the housing is used for generating an air flow and has an axis. The lamp holder facing the axis directly is connected with an external power supply and has a first cross section; and the area of the first cross section matches the area of the cross section of the axis. The air flow can flow along a linear air flue between the first air port and the second air port to cool the optical machine assembly. Therefore, the air flue structure can be optimized and thus the maximum air flow can be obtained. 本发明提供种投影装置，包括：壳体，具有第风口与第二风口，该第风口及该第二风口相对设置；光机组件，设置于该壳体内；风扇，设置于该壳体内，该风扇用以形成风流，该风扇具有轴心；以及灯座，用以连接外部电源，该灯座正对该轴心设置，该灯座具有第截面；其中，该第截面的面积与该轴心截面的面积相符，该风流可沿于该第风口与该第二风口之间形成的直线型风道上流动以对该光机组件散热。借此，以实现风道结构的优化，以获取最大风流量。