Floating Load Detector with Elastic Beam for Sensitivity
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Solution Overview
Problem
Existing load detectors, such as scales, suffer from reduced sensitivity due to a significant portion of the applied load force being transmitted to the housing rather than the load sensor, leading to potential damage from excessive loads.
Innovation Solution
A load detector design featuring a housing with a load sensor, a base platform floatingly supported by an elastic beam, and an elastic member on the base platform to transmit the load force, allowing simultaneous elastic deformation and sensitive force detection while preventing damage from excessive loads by blocking excessive force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If an elastic block is supported on a housing and is in contact with a load sensor, then the load detector structure is simple, but a large part of the load force is transmitted to the housing instead of the load sensor, reducing sensitivity
Solution Approach 1:
The patent divides the force transmission path into separate segments: the elastic block handles initial load absorption, the elastic beam transmits force laterally, and the elastic column transmits force vertically to the load sensor. This segmentation ensures that the load sensor receives the full load force without housing interference, resolving the sensitivity issue while maintaining structural simplicity.
Solution Approach 2:
The patent introduces an elastic beam as an intermediary component between the elastic block and the load sensor. This beam laterally transmits the load force to an elastic column, which then vertically transmits it to the load sensor. This intermediary mechanism prevents direct housing contact from interfering with force transmission, thereby maintaining high sensitivity.
2Reliability
If the load sensor is directly contacted by the elastic block, then the detection is direct, but the load sensor may be damaged by excessive load
Solution Approach 1:
The patent employs the elastic block and elastic beam as cushioning elements before the load reaches the sensor. These elastic components deform under excessive load, absorbing冲击 energy and preventing direct transmission of damaging forces to the load sensor, while still maintaining accurate force transmission during normal operation.
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 design enhances the sensitivity of the load sensor and prevents damage by effectively transmitting the load force to the sensor while limiting excessive force application, ensuring accurate and durable measurements.
Implementation Method 1
the elastic beam and the elastic member are simultaneously elastically deformed in the height direction, and the load force is transmitted to the load sensor via the base platform
Data Source
AI summary
A load detector includes a housing having a height direction, and a load sensor provided within the housing. The load detector further includes a base platform, an elastic beam and an elastic member, the base being floatingly supported on the housing by the elastic beam, and the elastic member being provided on the base platform for receiving a load force. With the load force is applied to the elastic member, the elastic beam and the elastic member are simultaneously elastically deformed in the height direction, and the load force is transmitted to the load sensor via the base platform. The base platform is floatingly supported on the housing by the elastic beam, so that a high sensitivity of the load sensor may be enabled and the load sensor may be prevented from damage caused by excessive load.