Projection Display Sliding Cover for Easy Optical Module Replacement
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Solution Overview
Problem
Existing projection display devices face challenges in easily replacing light sources and optical components due to limited space and cumbersome operations, particularly when the cover cannot be sufficiently opened, obstructing the mounting or dismounting of these components.
Innovation Solution
A projection display device design featuring a sliding cover mechanism that allows for sufficient opening of the compartment, even in confined spaces, enabling easy replacement of both light sources and optical components without the need for extensive disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the cover is interconnected to the cabinet by a hinge so that the cover can be opened in a state that the cover is mounted on the cabinet, then the cover remains mounted on the cabinet, but it is impossible to sufficiently open the cover if there is not a sufficient space on the outside of the cabinet surface
Solution Approach 1:
The cover is designed to slide along the cabinet surface rather than rotating on a hinge, allowing dynamic adjustment of the cover position. The holding portion enables the cover to be held at various sliding positions, providing flexibility in opening extent while maintaining mounting stability.
Solution Approach 2:
Instead of opening the cover in a rotational arc (hinge mechanism), the cover slides linearly along the cabinet surface in a different dimensional path. This sliding motion along the surface allows sufficient opening even when there is limited space perpendicular to the surface.
2Ease of operation
If the cover is completely detached from the cabinet in opening the cover, then the cover can be fully opened, but it is necessary to place the detached cover in a position where replacement of the light source is not obstructed, which requires a cumbersome operation
Solution Approach 1:
The cover transitions from a fixed detached state to a dynamically positionable state during operation. The holding portion allows the cover to be temporarily positioned at various locations during the replacement process, reducing operation complexity while maintaining full opening capability.
3Stability of the object's composition
If a hinge mechanism is used to connect the cover to the cabinet, then the cover remains mounted during opening, but the cover may obstruct mounting or dismounting of the light source due to insufficient opening space
Solution Approach 1:
The cover slides along the cabinet surface rather than rotating outward, utilizing the surface area of the cabinet as the path of motion. This dimensional change in the opening mechanism creates sufficient working space for light source replacement while maintaining cover mounting.
Data Source
AI summary
A projection display device includes a light source; an optical system which modulates light from the light source, and emits the modulated light; a projecting portion which enlarges and projects the light emitted from the optical system; a cabinet which houses the light source, the optical system, and the projecting portion; an opening which is formed in one surface of the cabinet to allow mounting or dismounting of an optical component constituting the optical system, or the light source; a cover which covers the opening; and a holding portion which holds the cover in such a manner that the cover is allowed to slide in a direction along the one surface.