Grooved Electronic Housing for Low-Force Elastic Retention
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Solution Overview
Problem
Existing electronic components in pneumatic tires face challenges with difficult insertion and extraction due to tight fits, leading to inaccurate measurements and reduced mechanical endurance, especially under high stress conditions, and require costly and complex automated tools.
Innovation Solution
A retaining device with a protective housing featuring grooves and channels on its outer surface, allowing for fluidic connection between the exterior and interior, maintaining pressure equilibrium during insertion and extraction, reducing insertion and extraction forces, and ensuring mechanical endurance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic component is tightly mounted inside the elastically deformable wall to ensure secure retention, then the reliability of the mounting is improved, but the difficulty of insertion and extraction increases significantly
Solution Approach 1:
The patent applies preliminary action by pre-forming grooves on the electronic component's housing before insertion. These grooves create controlled fluidic pathways that facilitate pressure equalization during insertion and extraction, thereby easing the operation while maintaining secure retention through the elastic wall's deformation capabilities
2Duration of action of stationary object
If the patch is made elastic to accommodate tire deformations and dampen stresses, then the durability of the mounting device is improved, but excessive heating occurs under high stress conditions leading to measurement inaccuracies
Solution Approach 1:
The patent applies segmentation by dividing the patch structure into distinct functional zones: an elastic mounting wall for accommodation and stress dampening, and a rigid base plate for stable sensor mounting. This segmentation allows the elastic portion to extend measurement capabilities while the rigid portion maintains measurement precision by reducing thermomechanical heating effects
3Productivity
If automated insertion and extraction tools are designed to handle tight fits, then the productivity of component replacement is improved, but the device complexity and cost increase
Solution Approach 1:
The patent applies self-service by designing the electronic component with integrated grooves that automatically create fluidic pathways during insertion. This self-forming mechanism eliminates the need for complex automated tools with multiple actuators and sensors, allowing simple insertion and extraction devices to achieve high productivity through the component's own structural features
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
Facilitates easy and economical insertion and extraction of electronic components, maintains measurement accuracy under stress, and extends the mechanical lifespan of the components by minimizing thermomechanical stress.
Implementation Method 1
the reduction in the volume of the fluidic cavity does not create overpressure within this cavity due to pressure equilibrium with the external environment
Data Source
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AI summary
The invention relates to an arrangement of an electronic member (10) and a retaining device comprising the following elements: - a radio transmitter coupled to a radio antenna; - a microprocessor coupled to the radio transmitter and supplied with power by a power source; - a memory space connected to the microprocessor; and - the elements are encapsulated in a protective casing (12) defining an outer surface (30) circumscribed in a cylinder having an axis of revolution (15) and delimited by two parallel planes; characterised in that the protective casing (12) comprises, on its radially outermost surface (13) at least one groove (19a, 19b) extending from a first end (18a, 18b) of the radially outermost surface (13) close to one of the two parallel planes and over a part of the height of the cylinder to a second end (18'a, 18'b).