Flush Vehicle Door Handle Assembly With Push-Triggered Deployment
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Solution Overview
Problem
Existing vehicle door handle assemblies protrude beyond the door surface, which can be aesthetically undesirable and may pose design challenges, particularly in modern vehicles where a flush or hidden handle is desired.
Innovation Solution
A door handle assembly with a handle that can retract flush with the door surface and deploy outwardly, utilizing a driving device, handle shaft, and transmission mechanism to transition between positions, activated by a preset angle of handle rotation, eliminating the need for additional electronic sensors or buttons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle protrudes beyond the door surface, then the operator can easily grasp and operate the door, but the aesthetic appeal is reduced and design challenges increase
Solution Approach 1:
The door handle is designed to be movable between a retracted position (flush with door surface) and a deployed position (protruding outward). The handle transitions from a static to a dynamic structure, allowing it to adapt its shape based on operational needs. When not in use, the handle remains flush with the door surface for aesthetic purposes; when operation is needed, it deploys outward for easy grasping.
2Ease of operation
If additional electronic sensors or buttons are added for handle operation, then the operational precision and control are improved, but the device complexity increases
Solution Approach 1:
The door handle system operates without requiring additional electronic sensors or buttons. The handle itself serves multiple functions: it can be pushed inward to trigger retraction, pulled outward to deploy, and its position is detected by the existing driving device and transmission mechanism. The system uses the handle's own movements to activate the operational modes, eliminating the need for separate control components.
Solution Approach 2:
The patent replaces electronic sensing and control systems with a purely mechanical operation mode. The driving device and transmission mechanism directly respond to the handle's physical movements (pushing or pulling) without requiring electronic sensors, buttons, or complex control circuits. This mechanical substitution simplifies the overall system while maintaining operational precision.
3Shape
If the handle is designed to retract flush with the door surface, then the aesthetic appeal is enhanced, but the ease of operation may be compromised
Solution Approach 1:
The handle transitions dynamically between retracted and deployed states. When retracted, it provides a flush, aesthetically pleasing appearance. When deployed, it protrudes outward to provide an ergonomic grip for easy operation. The system automatically switches between these two states based on operational requirements, maintaining both aesthetic appeal and ease of operation at different times.
Data Source
AI summary
A door handle assembly for a vehicle door having a door surface includes a handle seat, a handle, a driving device, a handle shaft and a transmission device. The handle has a retracted position and a deployed position. The handle is flush with the door surface when the handle is in the retracted position, and the handle protrudes outwardly relative to the door surface when the handle is in the deployed position. The handle shaft is configured to rotate under the drive of the driving device. The transmission device connects the handle shaft to the handle, such that the handle is movable under the drive of the handle shaft between the retracted position and the deployed position relative to the handle seat. The driving device is configured such that when the handle is in the retracted position or in the deployed position, the driving device is activated in response to the rotation of the handle shaft by a preset angle when the handle is pushed by an operator, so as to deploy or retract the handle.