Load Sensor Shock Absorber Gap Design
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Solution Overview
Problem
Existing load sensor devices face challenges in achieving high detection accuracy and impact resistance, as the pressing member and pressure receiver can collide when an impact is applied, potentially damaging the sensor.
Innovation Solution
The load sensor device incorporates a pressing member with a rigid presser and an elastic supporter, where a gap is maintained between the rigid presser and the pressure receiver in a no-load state. The elastic supporter deforms to reduce this gap when a load is applied, and a shock absorber alleviates elastic deformation to reduce impact forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pressing member and pressure receiver are kept out of contact in a no-load state, then detection accuracy is improved, but impact resistance deteriorates due to collision damage
Solution Approach 1:
A gap is intentionally maintained between the pressing member and pressure receiver in the no-load state, and an elastic supporter is provided to cushion impacts. When impact occurs, the elastic supporter deforms to absorb the shock, preventing direct collision damage while maintaining the gap for accurate detection during normal operation.
2Measurement precision
If a rigid pressing member is displaced toward the pressure receiver under load, then detection accuracy is improved, but impact damage risk increases due to high displacement rate
Solution Approach 1:
The elastic supporter's deformation characteristics are optimized to change the displacement rate parameter. Under normal load, the supporter provides rigid support for accurate detection. Under impact, the supporter's elastic deformation increases the displacement rate, reducing the harmful collision force while maintaining detection accuracy.
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
This configuration enhances detection accuracy by ensuring direct contact between the rigid presser and the pressure receiver under load, while also providing excellent impact resistance by reducing the displacement rate of the rigid presser and alleviating impact forces.
Implementation Method 1
The elastic supporter elastically deforms to reduce the gap between the rigid presser and the pressure receiver when the load is applied to the elastic member
Implementation Method 2
a shock absorber capable of alleviating elastic deformation of the elastic supporter
Data Source
AI summary
A load sensor device includes a load sensor that has a pressure receiver, a housing that accommodates the load sensor, an elastic member that receives a load and presses against the load sensor, and a pressing member that is provided between the elastic member and the load sensor. The pressing member has a rigid presser capable of coming into contact with the pressure receiver, and an elastic supporter that supports the rigid presser on the housing. A gap is provided between the rigid presser and the pressure receiver in a state where the load is not applied to the elastic member. The elastic supporter elastically deforms to reduce the gap between the rigid presser and the pressure receiver when the load is applied to the elastic member. The load sensor device further includes a shock absorber capable of alleviating elastic deformation of the elastic supporter.