Cap Member for Waterproof Physical Quantity Measuring Device
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Solution Overview
Problem
Existing physical quantity measuring devices face difficulties in adjusting the electronic circuit after assembly due to sealed adjustment holes, and they often have complex arrangements that increase production costs.
Innovation Solution
A physical quantity measuring device with a cap member that allows easy covering and uncovering of an operation hole for adjusting the electronic adjusting unit, even after assembly, using a simple arrangement with removably attachable cap bodies and a uniting portion, and an elastic linear loss-preventing member to prevent accidental removal and ensure waterproofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adjustment holes are closed with rubber stoppers and sealed, then waterproofing is improved, but adjustability after assembly deteriorates
Solution Approach 1:
The cap member is divided into multiple cap bodies (first cap body and second cap body) that can be independently removed. Each cap body corresponds to a specific adjustment hole, allowing selective access to individual adjustment components while maintaining waterproofing of other holes. This segmentation enables partial adjustability without compromising overall waterproof integrity.
Solution Approach 2:
The cap member acts as an intermediary component between the sealed housing and the adjustment components. It provides a removable interface that allows tools to access adjustment components through operation holes while maintaining the waterproof seal when closed. The cap member with its multiple cap bodies serves as a mediator that balances waterproofing requirements with adjustability needs.
2Adaptability or versatility
If a rotatable trimmer cover is used, then adjustability after assembly is improved, but device complexity increases
Solution Approach 1:
Instead of a single rotatable cover, the invention uses multiple independent cap bodies (first cap body for first adjustment component, second cap body for second adjustment component). Each cap body can be independently removed and reattached, simplifying the structure compared to a rotatable mechanism while achieving the same adjustability function.
Solution Approach 2:
Rather than using a rotatable cover that opens to expose adjustment holes, the invention inverts the approach by using removable cap bodies that can be completely detached. This allows the operation holes to remain in the housing structure while the caps provide the opening/closing function, simplifying the overall structure.
3Ease of operation
If multiple separate cap bodies are used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
Multiple cap bodies (first cap body and second cap body) are merged into a single integrated cap member through a uniting portion. This allows the cap bodies to be easily manufactured as one piece while still providing the functionality of multiple separate caps. The uniting portion connects the cap bodies without requiring additional fastening mechanisms, simplifying assembly.
Solution Approach 2:
The cap member serves multiple functions: it provides waterproof sealing for multiple adjustment holes, allows selective access to different adjustment components, and prevents loss of cap bodies through the uniting portion. The uniting portion itself serves as both a structural connector and a loss-prevention mechanism, demonstrating multi-functionality that reduces overall device complexity.
Data Source
AI summary
A circuit board including an electronic circuit unit and electronic adjusting units is disposed in a case. A signal transmitting member connected to the circuit board is mounted in a mount hole of a cover member. Operation holes corresponding to a plurality of operable portions of the electronic adjusting units are provided to the cover member. A cap member including a plurality of cap bodies and a connection portion connecting the cap bodies is attached to the cover member to close the operation holes. The operation holes for adjusting the electronic adjusting units are thus covered/uncovered by the simple cap member. The operation holes are reliably waterproofed by the cap member.