Universal Projection Housing for Interchangeable Optical Engines
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Solution Overview
Problem
Current projection devices face issues with housing compatibility across different optical module assemblies, vibration transmission from speaker modules affecting image stability, inadequate anti-direct-viewing protection, and inefficient heat dissipation, leading to high costs and operational challenges.
Innovation Solution
A housing design that accommodates multiple optical module assembly structures through interchangeable mold inserts, separates speaker and optical modules to mitigate vibration, and employs dual perception sensors for enhanced anti-direct-viewing and adaptive light intensity control, along with a streamlined heat dissipation system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the housing is designed to adapt to a specific model of optical module assembly, then the mounting precision and stability are improved, but the adaptability to other models deteriorates
Solution Approach 1:
The housing is designed with a universal mounting structure that can accommodate multiple models of optical module assemblies. The mounting structure includes standardized mounting holes and adjustable positioning features that allow the same housing to securely mount different optical module models without requiring custom modifications, thus achieving both mounting precision and adaptability.
Solution Approach 2:
The housing mounting structure is segmented into standardized interface components and adjustable positioning elements. This segmentation allows the mounting structure to be configured for different optical module models while maintaining consistent mounting precision through the standardized interface portion.
2Adaptability or versatility
If multiple components are replaced during production or maintenance to adapt the housing, then the adaptability is improved, but the productivity and cost efficiency deteriorate
Solution Approach 1:
The housing mounting structure is designed as a universal platform that works with multiple optical module models out of the box, eliminating the need for component replacement during production or maintenance. This universal design maintains high production efficiency while providing adaptability across different models.
3Device complexity
If the speaker module and optical module assembly are mounted on the same housing, then the device complexity is reduced, but the image stability deteriorates due to vibration transmission
Solution Approach 1:
A vibration isolation structure is introduced as an intermediary between the speaker module and the housing. This intermediary component absorbs and dampens vibrations from the speaker module before they can be transmitted to the optical module assembly, thereby maintaining image stability while allowing both modules to be mounted on the same housing structure.
4Stability of the object's composition
If vibration isolation measures are implemented, then the image stability is improved, but the device complexity and cost increase
Solution Approach 1:
The vibration isolation structure is integrated into the existing housing design as a combined mounting and isolation system. This intermediary structure performs dual functions of mounting the speaker module and isolating vibrations simultaneously, improving image stability without significantly increasing overall device complexity.
5Reliability
If existing sensors are reused for anti-direct-viewing detection, then the cost is reduced, but the detection precision and reliability deteriorate
Solution Approach 1:
The anti-direct-viewing detection system replaces existing sensor-based detection with a structural optical detection mechanism. The housing structure itself incorporates optical features that detect direct viewing attempts through light interaction, providing more reliable detection while avoiding the need for additional expensive sensors.
Data Source
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AI summary
A housing, a projection device, and a method used for a projection device. The projection device (10) comprises an optical engine assembly (200), wherein the optical engine assembly (200) has a first structure or a second structure, the second structure being different from the first structure. The housing comprises a main body structure (121) for defining the appearance of the projection device, and an optical-engine fixing structure (122), wherein with regard to the optical engine assembly (200), which has the first structure or the second structure, the main body structure (121) is the same; the optical-engine fixing structure (122) comprises at least one optical-engine fastening component (130); and the position and/or size of the at least one optical-engine fastening component (130) on the optical-engine fixing structure (122) is configured, according to the optical engine assembly (200) having the first structure, to be suitable for mounting at least part of the optical engine assembly (200) having the first structure on the housing, or is configured, according to the optical engine assembly (200) having the second structure, to be suitable for mounting at least part of the optical engine assembly (200) having the second structure on the housing. By means of the solution, a housing with the same appearance can be compatible with different models of optical engine assemblies at relatively low costs.