Sensor Unit Armor Body Reference Planes Alignment
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Solution Overview
Problem
Existing sensor modules face challenges in securing environmental resistance and aligning detection axes when attached to objects, requiring additional resistance measures that complicate the attachment process.
Innovation Solution
A sensor unit design featuring an armor body with specific reference planes for positioning the sensor module's detection axes, ensuring accurate alignment and environmental resistance, including a housing with reference inner and outer planes for precise positioning and machining optimizations to reduce machining area and improve perpendicularity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor module is housed in an armor body for environmental resistance, then environmental resistance is improved, but alignment precision of detection axes deteriorates
Solution Approach 1:
The armor body includes reference inner planes and reference outer planes that are pre-formed during armor body manufacturing. These reference planes serve as preliminary alignment features that guide the positioning of the sensor module, ensuring that detection axes are correctly aligned with the object before the sensor module is housed in the armor body. This preliminary preparation eliminates the need for complex post-assembly alignment adjustments.
2Manufacturing precision
If reference planes are added to the armor body for positioning, then alignment precision is improved, but device complexity increases
Solution Approach 1:
The reference inner planes and reference outer planes of the armor body serve multiple functions simultaneously: they provide environmental sealing surfaces for the sensor module, they serve as positioning references for alignment, and they facilitate machining operations. By making these reference planes universal features of the armor body structure rather than separate components, the design avoids increasing overall device complexity while achieving precise positioning.
3Productivity
If machining area is reduced for optimization, then productivity is improved, but manufacturing precision may deteriorate
Solution Approach 1:
The reference inner planes and reference outer planes are designed to occupy only the specific local areas where positioning and sealing are required, rather than extending across the entire armor body surface. This localized approach allows concentrated machining resources to be applied to these critical small areas, achieving high perpendicularity and precision without the need for extensive machining of the entire armor body, thus maintaining both productivity and manufacturing precision.
Data Source
AI summary
A sensor unit includes a sensor module including a first plane and a second plane that crosses the first plane, and an armor body configured to house the sensor module. The armor body includes a first reference inner plane for positioning the first plane of the sensor module, a first reference outer plane parallel to the first reference inner plane and provided on an outer surface of the first reference inner plane, a second reference inner plane for positioning the second plane of the sensor module, and a second reference outer plane parallel to the second reference inner plane and provided on an outer surface of the second reference inner plane.