Gear-Recess Sensor Layout for Thin Rotating Assemblies
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The arrangement of sensors in conventional rotating devices increases the thickness of the device.
Innovation Solution
The rotating device incorporates a sensor part housed within a recess in the rotational axis direction of a gear, with a part of the sensor housing accommodated in this recess, and the sensor's brush is accommodated within the sensor housing to reduce thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor is arranged in a conventional rotating device, then the rotational position can be detected, but the thickness of the device increases
Solution Approach 1:
The sensor housing is nested within the recess of the gear, and the sensor part is nested within the sensor housing, creating a compact multi-level structure that reduces the overall thickness of the rotating device while maintaining detection functionality
Solution Approach 2:
The sensor housing is rotatably supported within the recess rather than being fixed, allowing the sensor to detect rotational position through angular movement within the confined space of the recess, effectively utilizing the rotational dimension to achieve detection without increasing axial thickness
Data Source
AI summary
A rotating device according to the present application includes a motor, a gear that transmits rotation of the motor 3 to an external device, and a sensor. The sensor includes a sensor part and a housing that accommodates the sensor part. The sensor part is capable of detecting a rotational speed or a rotational angle of the gear. The gear includes a recess in a rotational axis direction of the gear 5. The recess accommodates a part of the housing.