Case assembly and refrigeration device
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Solution Overview
Problem
The existing case assemblies with doors often experience issues where the door compresses the case and extends beyond the assembly's side when opened, leading to potential damage and interference with the environment during mounting processes.
Innovation Solution
A case assembly design featuring a hinge assembly with specific reference planes and trajectories for the door's movement, ensuring the door's edges follow defined paths that prevent excessive compression and extension, using a combination of rotation and movement to counteract these tendencies, with the door's inner and outer edges moving along curved trajectories that maintain stability and prevent excessive displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door is opened relative to the case, then the door can be accessed and used, but the door compresses the case and extends beyond the side of the case assembly causing damage and interference
Solution Approach 1:
The hinge assembly is divided into two independent hinge points (first hinge point and second hinge point) instead of a single hinge axis. This segmentation allows each hinge point to control different aspects of door movement: the first hinge point controls the primary rotation while the second hinge point controls the trajectory to prevent excessive extension and compression
Solution Approach 2:
The door's movement is transformed from a simple single-axis rotation to a complex two-dimensional trajectory motion. By introducing the second hinge point at a different position than the first, the door follows a curved path that combines rotation with controlled translation, preventing the door from extending beyond the case assembly's side while maintaining accessibility
2Device complexity
If a traditional single-axis hinge is used, then the structure is simple, but the door extends beyond the side of the case assembly causing interference with mounting environment
Solution Approach 1:
The hinge assembly is divided into two independent hinge points (first hinge point and second hinge point) instead of a single hinge axis. This segmentation allows each hinge point to control different aspects of door movement: the first hinge point controls the primary rotation while the second hinge point controls the trajectory to prevent excessive extension and compression
Solution Approach 2:
The second hinge point acts as an intermediary element that mediates between the door's rotation and the case assembly's side boundary. By positioning the second hinge point further away from the outer edge than the first hinge point, it serves as a control mechanism that guides the door's outer edge along a trajectory that prevents interference with the mounting environment
Data Source
AI summary
A case assembly includes: a case, defining a receiving space having an opening; a door, configured to block the opening; and a hinge assembly, pivotally connect the case to the door. The door has an inner edge, an outer edge, a first reference plane and a second reference plane. When the door is in a closed state, the inner edge is located on and extend along the first reference plane, and the first reference plane is parallel to a plane in which the opening is located. When the door is in a closed state, the outer edge is located on and extend along the second reference plane, and the second reference plane is perpendicular to the plane in which the opening is located, the first reference plane and the second reference plane stay stationary with respect to the case while the door is being opened.