Vehicle Lamp Vibration Module for Audio Output

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Solution Overview

Problem

Existing vehicle lamps with watertight structures cannot accommodate speakers due to moisture prevention, limiting their ability to output sound.

Innovation Solution

A lamp design incorporating a vibration part with a first and second module, each containing a magnet and a coil member, allowing for sound output through electromagnetic vibration of the lamp housing or lens part.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a watertight structure is adopted to prevent moisture accumulation, then reliability is improved, but the ability to mount a speaker is lost

Engineering Contradiction:
Improvemoisture preventionVSAvoidspeaker mounting capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The lamp housing is divided into a waterproof main body and a separate vibration module. The vibration module containing the speaker is positioned in a region where it does not compromise the waterproof integrity of the main lamp housing, allowing the lamp to maintain both moisture prevention and speaker mounting capabilities

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A vibration module serves as an intermediary component that enables sound output functionality without requiring direct integration of the speaker into the waterproof housing. This module can be positioned externally or in a non-critical area, mediating between the waterproof requirement and the need for audio output

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a speaker is mounted in the lamp, then communication capability is improved, but the watertight structure is compromised

Engineering Contradiction:
Improvecommunication capabilityVSAvoidwatertight structure
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The communication function is segmented into a separate vibration module that does not penetrate the waterproof housing. This allows the main lamp body to remain sealed while the vibration module provides audio output capability in a location that does not compromise the watertight structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The vibration module serves multiple functions including sound output and potential vibration feedback, providing universal communication capability without requiring modifications to the waterproof housing structure. This multi-functional module can be positioned externally to maintain housing integrity

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

Enables the vehicle lamp to produce sound in addition to lighting functions by vibrating the housing or lens part, enhancing communication capabilities beyond visual information.

Implementation Method 1

a vibration part fixed to the lamp housing part, the vibration part including a first module fixed to a first side of the lamp housing part and a second module fixed to a second side of the lamp housing part and configured to face the first module, the first module including a first magnet, and the second module including a second magnet configured to face the first magnet, a second magnet fixing portion configured to accommodate the second magnet, and a coil member provided at one side of the second magnet and accommodated in the second magnet fixing portion

Methodology Applied
Scientific EffectElectromagnetic force: Lorentz Force

Data Source

PatentUS20250360865A1Lamp for vehicle
Publication Date: 2025.11.27 HYUNDAI MOBIS CO LTD
  • US20250360865A1 patent drawing
  • US20250360865A1 patent drawing
  • US20250360865A1 patent drawing

AI summary

A lamp for a vehicle including a lamp housing part configured to accommodate a light source in an internal lamp housing part space defined therein, an outer lens part coupled to one side of the lamp housing part and configured to cover the internal lamp housing part space, and a vibration part fixed to the lamp housing part, the vibration part including a first module fixed to a first side of the lamp housing part and a second module fixed to a second side of the lamp housing part and configured to face the first module, the first module includes a first magnet, and the second module including a second magnet configured to face the first magnet, a second magnet fixing portion configured to accommodate the second magnet, and a coil member provided at one side of the second magnet and accommodated in the second magnet fixing portion.