Vehicle Door Handle Assembly With Flush Deployable Mechanism
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Solution Overview
Problem
Conventional door handle assemblies for vehicles often require a visible handle that protrudes from the vehicle's door surface, which can compromise the aesthetic and aerodynamic design of the vehicle.
Innovation Solution
A door handle assembly with a concealed or semi-concealed handle that automatically deploys and retracts using a slider and actuator mechanism, allowing the handle to switch between a retracted position and a deployed position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a visible handle protruding from the door surface is used, then the ease of operation is improved, but the aesthetic appearance and aerodynamic performance deteriorate
Solution Approach 1:
The door handle is designed to dynamically change its position between a retracted state (flush with door surface) and a deployed state (protruding for operation). The handle moves from a first position aligned with the door surface to a second position protruding outward, allowing it to adapt between aesthetic concealment and operational visibility.
2Shape
If a concealed handle is used, then the aesthetic appearance is improved, but the ease of operation deteriorates
Solution Approach 1:
The handle transitions from a static concealed design to a dynamic system that can deploy outward when needed. The actuator mechanism enables the handle to move from a retracted position (maintaining flush surface) to a deployed position (providing grip for operation), resolving the contradiction between concealment and operability.
3Ease of operation
If a protruding handle is used, then the ease of operation is improved, but the aerodynamic performance deteriorates
Solution Approach 1:
The handle system dynamically adjusts its profile relative to the door surface. When retracted, the handle maintains a flush surface that reduces aerodynamic drag and improves airflow over the vehicle. When deployed, it provides the necessary protrusion for user grip, temporarily accepting the aerodynamic penalty only when operation is required.
4Object-generated harmful factors
If a concealed handle is used, then the aerodynamic performance is improved, but the ease of operation deteriorates
Solution Approach 1:
The system resolves this contradiction by making the handle dynamic rather than static. The actuator enables the handle to deploy outward from its concealed position, providing adequate grip surface for operation when needed, while maintaining the aerodynamic benefits of concealment during normal vehicle operation.
Data Source
AI summary
A door handle assembly for a vehicle having a handle holder, a handle, a slider and an actuator. The handle holder is provided with a rotation shaft extending in a length direction of the vehicle. The handle is connected to the rotation shaft and configured to be pivotable about an axis of the rotation shaft to move between a retracted position and a deployed position. The slider is linearly movably arranged in the handle holder and configured to, by its forward movement in a first direction, bring the handle to rotate from the retracted position to the deployed position, and to be able to move backward in a second direction opposite to the first direction, so that the handle is rotatable from the deployed position to the retracted position. The actuator is configured to drive the slider to move forward in the first direction and backward in the second direction.