Electric Sliding Vehicle Window With Dual-Motion Glass Alignment
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Solution Overview
Problem
Existing sliding windows in vehicles experience increased resistance and vibration when running at high speeds due to the position difference between the two sashes inside and outside the window aperture.
Innovation Solution
An electrically driven sliding window system that includes guide rails, slide blocks, a movable glass unit, and an electric drive mechanism, allowing for sliding and alignment movements to reduce resistance and vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If two sashes are arranged at different positions inside and outside the window aperture, then the sliding window structure is stable and occupies small space, but the resistance and vibration increase when the vehicle runs at high speed
Solution Approach 1:
The patent introduces a second degree of freedom for the slide block, enabling it to move not only along the guide rail (first dimension) but also perpendicular to the guide rail (second dimension). This dimensional extension allows the movable glass unit to align with the window aperture plane, resolving the aerodynamic resistance and vibration issues while maintaining the stable sliding structure.
2Object-affected harmful factors
If the movable glass unit is aligned with the window aperture, then the resistance and vibration are reduced, but the device complexity increases due to additional alignment mechanism
Solution Approach 1:
The patent merges the sliding function and alignment function into a single integrated slide block structure. The slide block simultaneously performs movement along the guide rail for sliding and movement perpendicular to the guide rail for alignment, eliminating the need for separate alignment mechanisms and reducing overall device complexity.
Solution Approach 2:
The slide block is designed as a multi-functional component that performs both sliding motion along the guide rail and alignment motion perpendicular to the guide rail. This universal component handles multiple functions that would traditionally require separate mechanisms, thereby reducing device complexity while achieving the alignment benefit.
3Shape
If a slide block with dual movement capability is used, then the movable glass unit can align with the window aperture, but the manufacturing precision requirements increase
Solution Approach 1:
The guide rail serves as an intermediary element that provides precise geometric constraints for the slide block. By designing the guide rail with accurate geometry and using it as a reference, the patent reduces the direct precision requirements between the slide block and base, as the guide rail mediates the positioning relationship.
Solution Approach 2:
The slide block's dual movement capability along the guide rail allows it to self-align with the window aperture through its own motion degrees of freedom. The structure inherently achieves alignment through its designed movement paths, reducing the need for high-precision pre-positioning during manufacturing and assembly.
Data Source
AI summary
An electrically driven sliding window for vehicle and a vehicle include a window aperture, guide rails, bases, slide blocks, a movable glass unit and an electric drive mechanism, the guide rails are provided on two opposite sides of the window aperture respectively, the slide block includes a base mating portion and a guide rail mating portion, the slide block is slidably mounted on a base via the base mating portion and is mounted on a guide rail via the guide rail mating portion, the movable glass unit is fixed on the bases, and the slide blocks are slidable along the guide rails and are slidable relative to the bases by means of the electric drive mechanism, to drive the bases to perform a sliding movement parallel to a direction of the guide rails and a movement for alignment perpendicular to the direction of the guide rails.