Toothed PCB Gear Structure for Compact Angle Sensing
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Solution Overview
Problem
Existing sensor arrangements for detecting rotational angles in motor vehicles require numerous components and a large installation space, making them complex and inefficient.
Innovation Solution
A circuit board with a peripheral surface featuring integrated teeth that form a gear, allowing for a compact and integrated sensor unit with enhanced angular resolution, where the teeth are formed in one piece with the board, reducing the need for additional components and processing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional sensor arrangements are used for detecting rotational angles, then the measurement precision can be maintained, but the device complexity and installation space increase significantly
Solution Approach 1:
The circuit board is merged with the gear wheel structure by integrating the toothing directly onto the peripheral surface of the circuit board. This combines the functions of the circuit board (signal processing, angular resolution detection) and the gear wheel (mechanical rotation transmission) into a single integrated component, eliminating the need for separate gear wheels and reducing overall device complexity while maintaining measurement precision
Solution Approach 2:
The circuit board is designed to serve multiple functions simultaneously: it acts as both the structural carrier for electronic components and the mechanical gear wheel for rotation transmission. The peripheral surface of the circuit board is equipped with toothing that engages with other gears, enabling the circuit board to perform both electrical and mechanical functions, thereby reducing the number of separate components needed
2Ease of operation
If traditional sensor arrangements with separate gear wheels are used, then the mechanical function is fulfilled, but the installation space and device complexity increase
Solution Approach 1:
The circuit board is merged with the gear wheel structure by integrating the toothing directly onto the peripheral surface of the circuit board. This combines the functions of the circuit board (signal processing, angular resolution detection) and the gear wheel (mechanical rotation transmission) into a single integrated component, eliminating the need for separate gear wheels and reducing overall device complexity while maintaining measurement precision
Data Source
Figure 1~2
Figure 3~7
Figure 8
AI summary
The invention relates to a printed circuit board (1) comprising a top side (2), an underside (3) and a peripheral surface (4) which connects the top side (2) to the underside (3), wherein the peripheral surface (4) has a toothing (6, 12, 13) for forming a gear wheel (7, 10, 11).