Integrated Sensor Module for Motor Wet and Dry Chamber Mounting
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Solution Overview
Problem
The limited space in motors, particularly those in vehicles, makes it difficult to install sensors effectively, as existing solutions require separate installation of rotational position sensors and temperature sensors within confined chambers, leading to installation challenges and increased error margins.
Innovation Solution
A sensor module with a holder for the rotational position sensor in the wet chamber and a temperature sensor in the dry chamber, connected via signal lines and a connector interface, utilizing a sealing element to facilitate installation across chamber boundaries, integrating both sensors in a single module to optimize space usage and reduce installation errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors are installed separately in wet chamber and dry chamber, then sensor coverage is improved, but installation complexity and error margin increase
Solution Approach 1:
The patent combines the rotational position sensor mounted on the holder in the wet chamber with the temperature sensor mounted on the housing in the dry chamber into a single integrated sensor module. This module includes a common connector interface and sealed signal line pathways, allowing both sensors to be installed as one unit rather than separately, thereby reducing installation complexity and error margin while maintaining comprehensive sensor coverage.
2Area of stationary object
If sensor module spans wet and dry chambers, then space utilization is improved, but sealing requirements become more complex
Solution Approach 1:
The patent introduces a sealing element as an intermediary component that creates sealed pathways for signal lines to pass from the wet chamber through the holder to the dry chamber. This sealing element integrates multiple sealing functions into a single component, allowing the sensor module to span both chambers effectively utilize motor space while managing sealing requirements through a unified design rather than multiple separate sealing solutions.
Data Source
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Figure 3
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AI summary
The invention relates to a sensor module (1) for mounting in a motor (2). The sensor module (1) comprises a holder (6) adapted to be mounted in a wet chamber (8) of the motor (2) and a temperature sensor (7) adapted to be mounted in a dry chamber (9) of the motor (2). A rotational position sensor (14) is mounted on the holder (6) and the temperature sensor (7) is spaced apart from the holder (6), wherein the rotational position sensor (14) and the temperature sensor (7) are connected via a plurality of signal lines (13) to a connector interface (15) adapted to be plugged into a corresponding connector. The sensor module (1) further comprises a sealing element (17) arranged between the rotational position sensor (14) and the temperature sensor (7) and being sealingly penetrated by signal lines (13) from one of the rotational position sensor (14) and the temperature sensor (7).