Vehicle Lamp Radar Cover Integration for Easy Maintenance

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Solution Overview

Problem

Existing vehicle lamps with integrated radars, such as millimeter-wave radars, require additional components and complex assembly processes to conceal the radars, which complicates maintainability and increases the number of components.

Innovation Solution

A vehicle lamp design that integrates a concealing part with the lamp cover, supported by a positioning part and a support member, allowing for easy detachment and reattachment during maintenance, and positions the radar to prevent vibration and electromagnetic interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate light guide plate is used to conceal the millimeter-wave radar, then the radar can be concealed from the outside of the vehicle, but the number of components and assembly processes increases

Engineering Contradiction:
Improveconcealment reliabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the concealing part and the lamp cover into a single integrated component. The concealing part is formed as an integral structure with the lamp cover, eliminating the need for a separate light guide plate while maintaining the radar concealment function. This merging reduces the number of components and simplifies the assembly process.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a separate light guide plate is used to conceal the millimeter-wave radar, then the radar can be concealed from the outside of the vehicle, but the assembly processes increase

Engineering Contradiction:
Improveconcealment reliabilityVSAvoidassembly processes
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The concealing part is integrated with the lamp cover as a single component, reducing the number of assembly steps. The lamp cover with integrated concealing part can be installed directly without requiring separate assembly of a light guide plate, thereby simplifying the manufacturing process.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the positioning part is fixed by screw, then the radar is securely positioned, but the maintenance becomes difficult

Engineering Contradiction:
Improvepositioning reliabilityVSAvoidmaintainability
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The positioning part uses an elastic engagement mechanism that allows for easy release during maintenance. The elastic nature of the engagement enables the positioning part to be detached without requiring screw removal, facilitating easier maintenance while maintaining secure positioning during normal operation.

Inventive Principle:
Principle #15Dynamics

4Reliability

If the positioning part is fixed by screw, then the radar is securely positioned, but the disassembly becomes difficult

Engineering Contradiction:
Improvepositioning reliabilityVSAvoiddisassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The elastic engagement mechanism allows the positioning part to be easily detached by applying force to release the engagement, eliminating the need for screw removal. This dynamic engagement provides secure positioning during operation while enabling easy disassembly when needed.

Inventive Principle:
Principle #15Dynamics

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 maintainability and reliability of the vehicle lamp by simplifying the assembly process and ensuring effective concealment of the radar while preventing vibration and electromagnetic interference.

Implementation Method 1

a radar (5) configured to acquire radar data indicating surroundings of a vehicle by emitting an electromagnetic wave outside the vehicle

Methodology Applied
Scientific EffectElectromagnetic wave emission: Electromagnetic Induction

Implementation Method 2

a concealing part (6) that faces the radar (5) to conceal the radar (5) from the outside of the vehicle and is configured to let the electromagnetic wave emitted from the radar (5) through

Methodology Applied
Scientific EffectElectromagnetic wave transmission: Electromagnetic Induction

Implementation Method 3

a positioning part (9) that is disposed between the concealing part (6) and the support member (8) and is configured to position the radar (5) to the concealing part (6)... The positioning part (9) is fixed to the concealing part (6) and is configured to engage with the support member (8) elastically

Methodology Applied
Scientific EffectElastic engagement: Elasticity

Data Source

PatentUS12055626B2Vehicle lamp and vehicle
Publication Date: 2024.08.06 KOITO MFG CO LTD
  • US12055626B2 patent drawing
  • US12055626B2 patent drawing
  • US12055626B2 patent drawing

AI summary

A vehicle lamp includes: a lamp housing; a lamp cover; an illumination unit disposed in a lamp chamber; a radar configured to acquire radar data indicating surroundings of a vehicle by emitting an electromagnetic wave outside the vehicle; a concealing part that faces the radar to conceal the radar from the outside of the vehicle and is configured to let the electromagnetic wave emitted from the radar through; a support member that is fixed to a vehicle body and is configured to support and fix the radar; and a positioning part that is disposed between the concealing part and the support member and is configured to position the radar to the concealing part. The concealing part is formed integrally with the lamp cover. The positioning part is fixed to the concealing part and is configured to engage with the support member elastically.