Anti-slip Grooves in Crimped Pressure Sensor Assembly
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Solution Overview
Problem
Conventional pressure sensor assemblies are susceptible to damage during installation or removal due to rotational forces applied to the connector component, which can cause it to rotate relative to the metal base component, leading to misalignment and potential damage.
Innovation Solution
The pressure sensor assembly incorporates grooves on the inside wall of the metal base component that are crimped inward to securely attach the connector component, preventing rotation and ensuring the pressure sensor electronics and circuitry remain fixed within the hollowed volume, thereby preventing damage during installation or removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thin wall of the cup is crimped inward over the connector component to prevent removal, then the connector component is securely retained, but the connector component becomes susceptible to rotation during installation or removal
Solution Approach 1:
The smooth thin wall of the cup is modified locally by forming grooves at specific positions. These grooves create localized friction zones that prevent rotation, while the rest of the wall maintains its smooth crimpable structure for secure retention.
Solution Approach 2:
The grooves are formed on the thin wall before the crimping operation. This preliminary action ensures that when the wall is crimped over the connector, the grooves are already positioned to prevent rotation during the subsequent installation or removal process.
2Ease of manufacture
If the smooth thin wall is crimped over the connector component, then the assembly process is simple, but the prevention of rotation is limited
Solution Approach 1:
Instead of making the entire wall structure complex, only localized grooves are formed on the thin wall. This maintains the overall simplicity of the crimping process while adding the necessary anti-rotation functionality at specific locations.
Solution Approach 2:
The grooves create an asymmetric surface profile on the otherwise symmetric smooth wall. This asymmetry provides mechanical interlocking that prevents rotation, while requiring minimal modification to the original simple wall structure.
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 crimped grooves effectively prevent rotation of the connector component with respect to the metal base component, ensuring secure attachment and reducing the risk of damage during assembly and disassembly processes, thus enhancing the durability and reliability of the pressure sensor assembly.
Implementation Method 1
The grooves on the inside wall of the metal base component prevent rotation of the connector component with respect to the metal base component
Data Source
AI summary
According to one configuration, a base component of a pressure sensor assembly includes a hollowed volume (e.g., chamber, bore, space, etc.) in which to house components such as a pressure sensor element and pressure sensor circuitry. Opposite an opening to the hollowed volume, the base component further includes a port through which to receive a fluid. An inside wall of the first end of the metallic base component includes grooves. The grooves can be created on the inner wall based on a metalworking operation known as broaching. To produce the pressure sensor assembly, at least a portion of the first end of the metallic base component including the grooves is crimped inward to fixedly couple a connector component to the metallic base component and retain the pressure sensor electronics and pressure sensor circuitry within the hollowed volume.