Radar Shield Coupling Structure for Screwless Radome Assembly

Solution Overview

Problem

Existing radar apparatuses face challenges in efficiently coupling shielding plates to radomes, leading to increased manufacturing time and cost due to the use of screws or ultrasonic welding, which can damage circuit boards and introduce foreign substances.

Innovation Solution

A radar apparatus design featuring a shield with a coupler system that allows easy attachment to a radome without screws, using elastic bodies and protrusions to secure the shielding plate, reducing the need for separate fastening components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screws or ultrasonic welding are used to couple the shielding plate to the radome, then the shielding plate can be securely attached, but the manufacturing time increases and the circuit board may be damaged

Engineering Contradiction:

Improveshielding plate attachment securityVSAvoidmanufacturing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The coupling structure is divided into separate components: a coupling protrusion on the radome and a corresponding coupling groove on the shielding plate. This segmentation allows for easy assembly without requiring time-consuming welding or screw fastening operations, directly reducing manufacturing time while maintaining secure attachment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The coupling protrusion and groove act as intermediary structures that facilitate the connection between the radome and shielding plate. These intermediary features enable secure attachment through simple mechanical interlocking, avoiding the need for damaging welding processes or additional fastening components.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If screws or ultrasonic welding are used to couple the shielding plate to the radome, then the shielding plate can be securely attached, but the circuit board may be damaged and foreign substances may be introduced

Engineering Contradiction:

Improveshielding plate attachment securityVSAvoidcircuit board damage and foreign substances

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The coupling structure is divided into separate components: a coupling protrusion on the radome and a corresponding coupling groove on the shielding plate. This segmentation allows for easy assembly without requiring time-consuming welding or screw fastening operations, directly reducing manufacturing time while maintaining secure attachment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The coupling protrusion and groove act as intermediary structures that facilitate the connection between the radome and shielding plate. These intermediary features enable secure attachment through simple mechanical interlocking, avoiding the need for damaging welding processes or additional fastening components.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If a complex coupling structure with separate fastening components is used, then the shielding plate can be securely attached, but the manufacturing cost increases

Engineering Contradiction:

Improveshielding plate attachment securityVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The coupling functionality is merged directly into the radome and shielding plate structures through integrated protrusion and groove features. This eliminates the need for separate fastening components such as screws or welding materials, thereby reducing part count, assembly complexity, and overall manufacturing cost while maintaining secure attachment.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The coupling protrusion and groove serve multiple functions: they provide mechanical attachment, ensure proper positioning of the shielding plate, and eliminate the need for additional fastening components. This multi-functionality reduces the overall complexity and cost of the manufacturing process.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 design simplifies the coupling process, reduces manufacturing time and cost, and prevents damage to circuit boards while ensuring effective radio wave shielding between antenna elements.

Implementation Method 1

the coupler may include an elastic body which is formed on an outer surface of the sidewall to correspond to a position of the protrusion and which elastically presses the protrusion toward the sidewall

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

a shield configured to cover the first element and including a coupler that is detachably coupled to the protrusion

Methodology Applied

Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS12494569B2Radar apparatus

Publication Date: 2025.12.09 HL KLEMOVE CORP

AI summary

A radio detection and ranging (radar) apparatus may include an antenna including a plate-shaped circuit board having one surface provided with a first element and a second element mounted thereon to transmit or receive radio waves, a radome configured to cover the one surface of the circuit board and including a protrusion protruding from an inner surface thereof at a side towards the circuit board, a shield configured to cover the first element and including a coupler that is detachably coupled to the protrusion, and a case coupled to the radome to cover the other surface of the circuit board.