Radar Lens Snap-Fit Assembly for Fewer Sealing Interfaces
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Solution Overview
Problem
Existing radar level measuring devices face challenges in handling and securing the dielectric lens, which can lead to loss during disassembly and require multiple sealing interfaces, complicating assembly and maintenance.
Innovation Solution
A positive connection, such as a latching or snap-fit connection, is established between the dielectric lens and the process connection, ensuring the lens is fixed axially and preventing loss, while reducing the number of sealing interfaces through a snap ring or annular snap-fit design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a dielectric lens is used in radar measuring devices for beam forming, then the directivity and measurement precision are improved, but the lens can be lost during disassembly and requires multiple sealing interfaces, increasing device complexity and reducing ease of operation
Solution Approach 1:
The patent combines the lens retaining function with the sealing function into a single integrated seal ring component. The seal ring includes a retaining portion that engages with a groove in the process connection to hold the lens, while simultaneously providing sealing against the process connection. This merging eliminates the need for separate retaining mechanisms and multiple sealing interfaces, reducing device complexity while maintaining measurement precision.
Solution Approach 2:
The seal ring is designed to perform multiple functions simultaneously: sealing the interface between the lens and process connection, retaining the lens in position through its retaining portion, and providing structural support. This multi-functionality reduces the number of components needed and simplifies the overall device structure while ensuring the lens remains securely in place for accurate beam forming.
2Measurement precision
If a dielectric lens is used in radar measuring devices for beam forming, then the directivity and measurement precision are improved, but the number of sealing interfaces increases, complicating assembly and maintenance
Solution Approach 1:
The patent merges the sealing function and lens retaining function into a single seal ring component. The seal ring's first sealing interface engages with the process connection, while its retaining portion secures the lens in one integrated structure. This eliminates the need for multiple separate sealing interfaces and retaining mechanisms, significantly simplifying assembly and maintenance operations while preserving the lens's beam forming capability.
Solution Approach 2:
The seal ring is designed with distinct functional segments: a sealing portion that contacts the process connection, a retaining portion with a groove for holding the lens, and an integrated structure that combines these functions. This segmentation of functions within a single component allows for simplified assembly where one component performs multiple roles, improving ease of operation while maintaining measurement precision.
3Reliability
If multiple sealing interfaces are used to secure the lens, then the lens is retained securely, but the assembly and maintenance become more complex and time-consuming
Solution Approach 1:
The patent combines multiple sealing and retaining functions into a single integrated seal ring component. The seal ring provides reliable lens retention through its retaining portion engaging with the process connection groove, while simultaneously providing sealing through its integrated sealing interface. This eliminates the need for multiple separate sealing components and assembly steps, improving productivity during assembly and maintenance while maintaining reliable lens security.
Solution Approach 2:
The seal ring is pre-configured with the retaining groove and sealing surfaces integrated into a single component that can be installed in one action. The lens is retained securely from the moment of installation, and the sealing is established simultaneously without requiring multiple separate assembly steps. This preliminary integration of functions into one component accelerates assembly and maintenance operations while ensuring reliable lens retention.
4Device complexity
If the lens is not securely retained, then the device structure is simpler, but the lens can be lost during disassembly, reducing reliability
Solution Approach 1:
The patent integrates the lens retaining function directly into the seal ring structure. The retaining portion of the seal ring engages with a groove in the process connection to securely hold the lens in place. This integration means that the same component providing sealing also provides reliable retention, eliminating the need for additional retaining mechanisms and keeping the device structure simple while ensuring the lens cannot be lost during disassembly.
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 solution enhances handling and assembly efficiency by preventing lens loss and minimizing sealing gaps, improving overpressure resistance and facilitating easier cleaning and maintenance.
Implementation Method 1
The electromagnetic waves propagating in the antenna horn in a substantially spherical segment-shaped manner are transformed in this manner into wave fronts that are as parallel as possible and propagate in the main emission direction
Data Source
AI summary
The present invention relates to a radar level measuring device with a housing, wherein the housing can be connected in a sealing manner to an accommodating portion, wherein the housing is configured at the front as a process connection and wherein a dielectric lens is disposed at the front of the housing and connected to the process connection such that the lens is fixed in the axial direction relative to the housing, by a positive connection being formed between the lens and the process connection.