Sensor Assembly Shielding Device Latching Connection
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Solution Overview
Problem
Existing sensor assemblies face challenges in ensuring reliable mounting of the magnetic shielding device, particularly when exposed to vibrations, which can lead to movement and instability of the shielding device relative to the housing.
Innovation Solution
A sensor assembly with a latching connection that securely holds the shielding device on the housing, preventing movement and ensuring reliable magnetic shielding, even under vibrational conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the shielding device is simply placed on the housing without a latching connection, then the assembly process is simple and quick, but the shielding device becomes loose and unstable under vibrations
Solution Approach 1:
The housing is divided into a housing body and a separate shielding device that can be independently assembled and removed. The latching connection is segmented into multiple latching elements distributed around the housing, allowing modular assembly while maintaining overall stability
Solution Approach 2:
The latching connection uses elastic latching elements that can dynamically adapt to vibrations and dimensional variations. The elastic properties allow the latching elements to maintain contact pressure and secure engagement despite dynamic operating conditions
2Reliability
If the shielding device is tightly fixed to prevent any movement, then mounting stability is improved, but the shielding device cannot be easily removed for maintenance or replacement
Solution Approach 1:
The latching connection employs elastic elements that provide a controlled gripping force during normal operation, securing the shielding device firmly. When removal force is applied, the elastic elements can deform and release, allowing easy detachment without permanent damage
Solution Approach 2:
The shielding device is designed as a removable component that can be detached and reattached multiple times. The latching connection allows the shielding device to be discarded from the housing when needed for maintenance or replacement, and recovered by simply re-engaging the latching elements
3Object-affected harmful factors
If the housing is made from magnetically shielding material, then magnetic shielding effect is achieved, but the housing weight increases significantly
Solution Approach 1:
The magnetic shielding function is segmented from the housing structure and implemented as a separate shielding device. This allows the housing to remain lightweight while the dedicated shielding component provides the necessary magnetic protection
Solution Approach 2:
The shielding device uses composite construction with magnetically shielding material combined with structurally optimized design. This provides effective magnetic shielding while minimizing the weight penalty compared to a fully magnetic housing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The latching connection provides a secure and reproducible mounting of the shielding device, minimizing disturbance from external magnetic fields and maintaining the shielding effect even under operational vibrations.
Implementation Method 1
a shielding device arranged on the housing for shielding the at least one magnetic field sensor relative to an environment of the sensor assembly
Data Source
AI summary
The invention relates to a sensor assembly (10) for detecting rotation of a shaft about an axis of rotation (12), said sensor assembly having a housing (24) in which at least one magnetic field sensor (14) is arranged. The at least one magnetic field sensor (14) is designed to acquire a variation in a magnetic field generated by a magnet device (16) in the sensor assembly (10), which variation is associated with the rotation of the shaft about the axis of rotation (12). A shield device (30) arranged on the housing (24) is provided to shield the at least one magnetic field sensor (14) from the surroundings (28) of the sensor assembly (10). The shield device (30) can be removed from the housing (24), with the shield device (30) being retained on the housing (24) by means of a latching connection.