Sensor Mounting Structure Asymmetric Locking Mechanism
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Solution Overview
Problem
Conventional sensor mounting structures face issues with low workability due to exact torque management requirements and a high likelihood of mismounting, which can cause damage to sensors and sensor receiving sections.
Innovation Solution
A sensor mounting structure featuring a bar-shaped sensor main body with a collar section and a sensor receiving section with a receiving lock portion, where the collar section includes a sensor lock portion and an interference avoiding portion, allowing the sensor to be rotated and locked into place without screw fastening, thereby reducing the risk of mismounting and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw fastening structure is used for mounting sensor, then mismounting is suppressed with low likelihood, but workability deteriorates due to strict torque management requirements
Solution Approach 1:
The patent replaces the screw fastening mechanical system with a bayonet-style insertion and rotation mechanism. The sensor is inserted into the sensor receiving section and then rotated to lock into place, eliminating the need for torque management while maintaining reliable mounting. This substitution of the mechanical fastening system resolves the contradiction between mounting reliability and ease of operation.
2Ease of operation
If non-screw fastening structure is used for mounting sensor, then workability is improved, but mismounting occurs with high likelihood causing damage
Solution Approach 1:
The patent employs asymmetric design in the locking mechanism where the sensor has a specific orientation that must be rotated to engage the locking features properly. The asymmetric shape of the sensor body relative to the receiving section ensures that only the correct orientation allows the sensor to lock securely, preventing mismounting while maintaining ease of insertion and rotation.
3Reliability
If collar section is designed to lock with receiving lock portion, then mounting reliability is improved, but interference may occur in incorrect poses
Solution Approach 1:
The patent incorporates a receiving guide surface on the receiving lock portion that guides the sensor into the correct orientation before the locking engagement occurs. This preliminary guiding action ensures that the sensor is properly aligned before the collar section engages with the receiving lock portion, preventing interference damage from incorrect poses while maintaining reliable locking.
Data Source
AI summary
A sensor mounting structure includes a sensor and a sensor receiving section including a receiving lock portion protruding from a seat surface to be locked to a portion of a collar section, wherein the collar section of the sensor includes: a sensor lock portion; and an interference avoiding portion in an overlapping portion of the collar section, wherein when the sensor main body is inserted in the sensor insertion hole in an incorrect pose, the collar section overlaps with the receiving lock portion in the overlapping portion, wherein the incorrect pose is offset from a normal pose around the center axis, wherein in the normal pose, the sensor lock portion is locked to the receiving lock portion, wherein the interference avoiding portion avoids interference of the collar section with the receiving lock portion along a direction of insertion of the sensor main body into the sensor insertion hole.