Vehicle Panel Assembly With Double Sealing and Modular Joining

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Solution Overview

Problem

Existing vehicle body structures require large-scale facility investment, limited design freedom, and high manufacturing costs due to complex manufacturing processes, making them unsuitable for rapid market changes and customized production.

Innovation Solution

A panel assembly for vehicles that includes an inner panel fastened to the vehicle body and an outer panel coupled to the inner panel, forming a doubly sealed structure with luggage housings, using bolting, riveting, or fitting, and omitting pressing and painting processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional pressing and welding processes are used for vehicle body structure, then manufacturing precision and structural strength are improved, but device complexity and manufacturing costs increase

Engineering Contradiction:
Improvevehicle body structure precisionVSAvoidmanufacturing process complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The vehicle body structure is divided into modular components: inner panels, outer panels, and frame structures. Each component is manufactured separately using simple forming processes without requiring complex pressing or welding operations, thereby reducing manufacturing process complexity while maintaining structural precision through modular assembly

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of using complex pressing and welding to achieve structural strength, the invention inverts the approach by using simple forming of inner and outer panels that are mechanically coupled to the frame. The structural integrity is achieved through the panel-frame coupling system rather than through complex joining processes

Inventive Principle:
Principle #13The other way round (Inversion)

2Strength

If traditional vehicle body manufacturing is used, then structural strength is improved, but ease of manufacture deteriorates

Engineering Contradiction:
Improvevehicle body strengthVSAvoidmanufacturing ease
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The vehicle body is segmented into inner panels, outer panels, and frame structures that can be manufactured independently using simple forming processes. This segmentation allows each component to be easily manufactured without complex pressing or welding, while the overall structural strength is maintained through the coupling system

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the manufacturing parameters from complex pressing and welding to simple forming and mechanical coupling. This parameter change significantly improves ease of manufacture while maintaining structural strength through the designed panel-frame coupling mechanism

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If design changes are made during small quantity batch production, then adaptability is improved, but device complexity increases due to additional dies

Engineering Contradiction:
Improvedesign adaptabilityVSAvoidnumber of dies
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The modular panel structure allows individual inner and outer panels to be independently designed and modified. This segmentation enables design changes during small quantity batch production without requiring additional complex dies, as each panel can be adjusted separately

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention introduces flexibility into the manufacturing system by allowing panel designs to be dynamically adjusted during production. The simple forming processes enable rapid design changes without the rigidity of traditional die-based systems, improving adaptability for customized production

Inventive Principle:
Principle #15Dynamics

4Reliability

If inner panel and outer panel are doubly coupled to luggage housings, then sealing performance is improved, but device complexity increases

Engineering Contradiction:
Improvesealing performanceVSAvoidcoupling structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing system is segmented into two independent coupling interfaces: inner panel to luggage housing, and outer panel to luggage housing. This segmentation achieves doubly sealed performance while keeping each coupling interface relatively simple, avoiding the need for a single complex multi-layer sealing structure

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12365391B2Panel assembly for vehicle
Publication Date: 2025.07.22 HYUNDAI MOTOR CO LTD
  • US12365391B2 patent drawing
  • US12365391B2 patent drawing
  • US12365391B2 patent drawing

AI summary

An embodiment panel assembly for a vehicle is provided. The vehicle includes a vehicle body that includes a plurality of pipes and also includes an upper body coupled to a lower body, and the panel assembly includes an inner panel fastened to the vehicle body and connected to luggage housings of luggage boxes disposed in the upper body of the vehicle body, the luggage boxes each having an opening open to a side of the vehicle and a luggage door configured to cover the opening, and an outer panel fastened to the inner panel from an outside, defining an exterior of the vehicle, and connected to the luggage housings of the luggage boxes.