Position Sensor Circuit Board Nested in Metal Body
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Solution Overview
Problem
Existing position-measuring devices, such as rotary encoders and linear scales, are often sensitive to external influences and costly to produce, requiring robust and economical solutions for reliable operation.
Innovation Solution
A sensor configuration featuring a circuit board integrated with a metal body having multiple layers, where the circuit board regions are fixed between metal layers, with options for adhesive bonding, soldering, or extrusion coating, providing mechanical support and thermal insulation, and including a metal body with fastening devices and a shielded cable for grounding, allowing for flexible and robust position measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a shared circuit board is used for mounting both detector and electronic components, then device complexity is reduced, but mechanical stability and protection against external influences deteriorate
Solution Approach 1:
The circuit board is divided into two separate regions: a first region for mounting the detector and a second region for mounting electronic components. These regions are positioned on opposite sides of the circuit board, allowing independent optimization of each region's mechanical and electrical properties while maintaining a unified board structure.
Solution Approach 2:
The circuit board is nested within a protective housing structure that contains both the detector region and electronic components region. This nested arrangement provides mechanical stability and protection against external influences while accommodating the segmented functional areas within a compact integrated package.
2Volume of moving object
If circuit board regions are positioned close together for compact design, then device size is reduced, but thermal management and signal interference worsen
Solution Approach 1:
Different regions of the circuit board are designed with locally optimized properties: the detector region is positioned and structured for optimal sensing performance, while the electronic components region is designed for thermal dissipation and electrical shielding. The spatial separation allows each region to have tailored thermal and electrical characteristics appropriate to its function.
Data Source
AI summary
A sensor for measuring the position of a component that is displaceable relative to the sensor, includes a circuit board and a metal body. The circuit board includes a first region in which a detector is located, and a second region in which electronic components are located, which are electrically connected to the detector. The metal body includes a first layer having a first area as well as a second layer having a second area. The first region of the circuit board is fixed in place in the first area and the second region of the circuit board is fixed in place in the second area. The first layer and the second layer of the metal body are situated between the first region and the second region of the circuit board so that the first region is located in a first plane and the second region is located in a second plane.