Waterproof Housing Filter Cover Positioning Recesses
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Solution Overview
Problem
Existing accommodation devices for electronic parts lack a proper positioning means for the shielding member, making it difficult to assemble correctly and securely.
Innovation Solution
Incorporating a cover positioning portion in the filter accommodation portion of the casing cover to facilitate the assembly and secure positioning of the filter cover, which covers the filter element, ensuring proper protection and assembly of the filter cover with respect to the casing cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shielding member is attached to the cover member by adhesive material without positioning means, then the filter unit is protected, but it becomes difficult to properly and easily assemble the shielding member to the cover member at a correct position
Solution Approach 1:
The patent applies preliminary action by pre-forming positioning protrusions on the shielding member and corresponding positioning recesses on the cover member before assembly. This preliminary structural preparation enables the shielding member to be automatically positioned at the correct location during assembly, eliminating the difficulty of manual positioning while maintaining protective functionality.
2Reliability
If a shielding member is attached to the cover member by adhesive material without positioning means, then the filter unit is protected, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The positioning protrusions and recesses are pre-formed during manufacturing of the shielding member and cover member respectively. This preliminary action eliminates the need for complex assembly operations, allowing workers to simply align and attach the components, thereby significantly improving assembly efficiency while maintaining reliable protection.
Solution Approach 2:
The positioning protrusions and recesses enable the shielding member to self-position at the correct location during assembly. This self-service mechanism eliminates the need for precise manual positioning or complex alignment procedures, thereby simplifying the assembly process and improving productivity.
3Device complexity
If no positioning means is provided for the filter cover, then the structure remains simple, but the filter cover cannot be properly positioned with respect to the casing cover
Solution Approach 1:
The positioning recesses are pre-formed in the filter accommodation portion of the casing cover during manufacturing. These pre-formed recesses work with the positioning protrusions on the filter cover to ensure precise positioning without adding complex assembly procedures, thereby maintaining manufacturing precision while keeping the overall structure relatively simple.
Data Source
AI summary
An accommodation device of a water-proof casing has a casing body and a casing cover. A control unit is accommodated in an accommodation space formed in the accommodation device. An air breathing hole is formed in the casing cover for communicating the accommodation space to an outside of the accommodation device. A filter element is fixed to a bottom surface of a filter accommodation portion, which is formed on an outside surface of the casing cover, so as to close an open end of the air breathing hole. A filter cover is fixed to the casing cover so as to cover the filter element. A cover positioning portion is formed in the filter accommodation portion on the bottom surface, so that the filter cover can be easily and correctly positioned with respect to the casing cover.