Modular Vehicle Door Assembly for Tool-Free Detachment
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Solution Overview
Problem
Existing vehicle doors are heavy, inconvenient to detach and attach, and require tools, limiting their ease of replacement and the sense of openness they provide.
Innovation Solution
A detachable modular door system comprising a frame module, skin module, and interior module, where the modules are easily attached and detached using a locking lever and fastening unit without tools, allowing for a lightweight and thermally adaptable design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a door is manufactured by assembling metallic frames and panels to provide strength and durability, then the door achieves adequate structural strength, but the door becomes heavy and difficult to attach or detach
Solution Approach 1:
The door is divided into separate modules: a frame module (10) that remains attached to the vehicle, and removable skin module (20) and interior module (30). This segmentation allows the heavy metal frame to provide structural strength while the lighter skin and interior modules can be easily removed, reducing overall door weight and facilitating easy detachment.
2Ease of operation
If a door hinge is exposed to the outside of the vehicle to facilitate door separation, then the door can be easily removed, but the door hinge becomes vulnerable to damage and environmental factors
Solution Approach 1:
The door separation function is separated from the main hinge mechanism. Instead of using the exposed hinge for removal, a separate locking lever (25) with locking member (24) system is implemented within the protected frame module, allowing easy door removal while keeping the main hinge concealed and protected.
Solution Approach 2:
The locking lever and locking member act as intermediary components that enable door removal without exposing the main hinge. These intermediaries provide a protected, internal mechanism for door separation that doesn't require external access to the hinge.
3Strength
If tools are required to detach or attach the door for replacement, then the door can be securely fastened, but the attachment and detachment process becomes inconvenient and time-consuming
Solution Approach 1:
The locking lever (25) is designed to be manually operated by the user without requiring external tools. The lever itself serves as both the manipulation interface and the fastening mechanism, allowing users to quickly attach or detach door modules by simply moving the lever, significantly reducing replacement time while maintaining secure fastening.
Data Source
AI summary
A detachable modular vehicle door includes a frame module hinge-connected to a vehicle and configured to be opened and closed, a skin module assembled to the frame module and configured to cover an outside of the frame module, and an interior module disposed inside the frame module and configured to cover an inside of the frame module and assembled to the skin module with the frame module interposed therebetween.