Box device
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Solution Overview
Problem
Existing box devices with single hinge shaft designs often cause interference or collision between the door body and external structures during rotation due to the door body exceeding the outer sidewall of the box body, particularly in embedded installations.
Innovation Solution
A box device with a hinge assembly featuring a first sliding shaft connected to a first sliding rail and a second sliding shaft connected to a second sliding rail, where the sliding rails extend along reference ellipses, allowing the door body to move towards a target side of the box body, reducing the risk of interference with external structures during opening and closing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single hinge shaft design is used, then the hinge assembly is simple in structure, but the door body exceeds the outer sidewall of the box body during rotation causing interference with external structures
Solution Approach 1:
The single hinge shaft is segmented into two sliding shafts (first sliding shaft and second sliding shaft) that move independently along elliptical sliding rails. This segmentation allows the door body to follow a controlled trajectory that prevents it from exceeding the outer sidewall during rotation, thereby eliminating interference with external structures while maintaining structural simplicity
Solution Approach 2:
The hinge assembly transitions from one-dimensional rotation around a single shaft to two-dimensional motion along elliptical paths. The sliding shafts move along sliding rails that extend along reference ellipses, adding a sliding dimension to the rotational motion. This dimensional change enables the door body to trace an elliptical trajectory that keeps it within the outer sidewall boundaries
2Ease of operation
If the door body rotates freely around a single hinge shaft, then the door body can open easily, but it collides with external structures during rotation
Solution Approach 1:
The hinge assembly employs dynamic sliding shafts that move along the elliptical sliding rails during door opening. The sliding shafts are not fixed but dynamically adjust their positions along the rails, allowing the door body to follow a controlled elliptical trajectory. This dynamic mechanism ensures easy door opening while preventing collision with external structures through trajectory control
Solution Approach 2:
The sliding shafts act as intermediaries between the door body and the hinge assembly. These sliding shafts move along the sliding rails and transmit motion from the door body rotation to the elliptical trajectory movement. The sliding rails serve as guides that mediate the motion, ensuring the door body follows the correct path that avoids collision while maintaining ease of operation
Data Source
AI summary
The present application provides a box device. A hinge assembly of the box device is provided with a first sliding rail and a second sliding rail. The first sliding rail extends along a first reference ellipse, and the second sliding rail extends along a second reference ellipse. When a door body blocks an opening, the part of the first sliding rail that is away from the box and the part of the second sliding rail that is away from the box are both away from a pivoting side, and the door body moves towards a target side of the box body during a process from blocking the opening by the door body to opening the door body relative to the box body, to reduce the extent to which the door body exceeds an outer sidewall of the box body.