Projection light machine and projection device
A technology of projection light engine and pressing parts, which is applied in projection devices, optics, instruments, etc., can solve problems affecting the working quality of projectors and product life, and achieve the effects of lowering temperature, avoiding heat concentration, and direct and simple heat dissipation methods
Pending Publication Date: 2022-02-22
SHENZHEN ANHUA OPTOELECTRONICS TECH
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Problems solved by technology
DMD is easy to generate heat during the working process. If the heat generated cannot be dissipated, it will affect the working quality and product life of the projector.
Method used
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[0038] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the present invention, some specific details are described in detail, and in order to avoid obscuring the essence of the present invention, known methods, procedures, procedures, and components are not described in detail.
[0039] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
[0040] Unless the context clearly requires, throughout the specification and claims, "comprises", "comprises" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive meaning; that is, "including but not limited to" meaning.
[0041] In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purp...
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The invention provides a projection light machine. The projection light machine comprises a shell, and a DMD, a heat conduction piece, a pressing piece, a sealing piece, a circuit board, a buffer piece and a radiator which are sequentially stacked, and the DMD is fixed on the shell; the heat conduction piece, the pressing piece and the sealing piece are all provided with skylights, so that a first connecting structure arranged on the circuit board can be connected with a second connecting structure arranged on the DMD in an inserted mode to achieve electrical connection between the circuit board and the DMD; and the radiator comprises a base body and an extension part, the extension part is integrally formed on the edge part of the base body and protrudes towards the direction where the DMD is located, the surface, close to the DMD, of the extension part is in surface contact with the surface, away from the DMD, of the pressing piece, and a heat dissipation channel is formed among the DMD, the heat conduction piece, the pressing piece and the radiator. The invention further provides a projection device comprising the projection light machine. The projection light machine and the projection device have the advantages of being good in heat dissipation effect and the like.
Description
technical field [0001] The invention relates to the field of projection equipment, in particular to a projection light machine and a projection device. Background technique [0002] As a kind of office equipment, projectors have been widely used in different occasions such as teaching, scientific research, conferences, and reports. Currently, digital light processing projectors occupy a relatively large market share, which use digital micromirror devices DMD as imaging devices, and have the characteristics of high native contrast, miniaturized machines, and closed optical paths. As the core component of digital light processing projectors, DMD is a projection technology that projects images by adjusting reflected light. It is very different from an LCD projector, and its imaging is realized by reflecting light through thousands of tiny mirrors. DMD is easy to generate heat during the working process. If the heat generated cannot be dissipated, the working quality and produ...
Claims
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IPC IPC(8): G03B21/00G03B21/16
CPCG03B21/008G03B21/16
Inventor 孙峰王源朱青王中俭
Owner SHENZHEN ANHUA OPTOELECTRONICS TECH