Case assembly and refrigeration device
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Solution Overview
Problem
The existing case assembly designs face issues where the door compresses the case and extends beyond its sides, leading to potential damage and interference problems, especially in recessed installations, as the hinge assembly fails to manage the door's motion effectively.
Innovation Solution
The proposed solution involves a case assembly with a hinge assembly that limits the motion trajectory of the door's edges, ensuring the outer edge moves along specific trajectories with defined radii of curvature and distances to prevent compression and excessive extension, using reference planes to maintain stability and smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door is opened using a conventional hinge assembly, then the door can be opened to provide access, but the door compresses the case and extends beyond its sides causing damage and interference
Solution Approach 1:
The patent applies curved motion trajectories for the door edges, specifically defining a first curved trajectory for the outer edge and a second curved trajectory for the inner edge. These trajectories ensure the door moves in an arc rather than a straight line, preventing the door from extending beyond the case sides and causing compression damage while still allowing full opening access.
Solution Approach 2:
The patent changes the motion parameters of the door by defining specific trajectory characteristics including radius of curvature (R1 for outer edge, R2 for inner edge), trajectory lengths (L1, L2), and angular ranges. These parameter changes transform the door's motion from conventional linear or simple rotational movement to a controlled curved path that eliminates harmful compression and extension effects.
2Device complexity
If the door follows a simple rotational trajectory, then the hinge assembly is simple in structure, but the door extends beyond the case side interfering with installation environment
Solution Approach 1:
By implementing curved trajectories with specific radii R1 and R2 for the door edges, the patent enables the door to follow an arc-shaped path during opening. This curved motion allows the door to clear the case sides without extending beyond them, making the refrigerator suitable for recessed installations in various wall configurations while maintaining a practical opening function.
3Ease of operation
If the door moves in a straight line during opening, then the motion trajectory is simple to control, but the door causes compression upon the case
Solution Approach 1:
The patent defines curved trajectories with radii R1 for the outer edge and R2 for the inner edge, ensuring the door moves along an arc rather than a straight line. This curved motion path prevents the door from directly compressing the case during opening, as the gradual arc movement distributes forces and avoids concentrated compression points, thereby protecting case integrity while maintaining smooth door operation.
Data Source
AI summary
Disclosed are a case assembly and a refrigeration device. The case assembly includes a case, a door, and a hinge assembly; the door has an outer edge and an inner edge; during the door moves from a closed state to a first opening angle, the outer edge moves toward a first reference plane along a first outer-edge trajectory, and the inner edge moves toward a second reference plane along a first inner-edge trajectory; the first outer-edge trajectory has a radius of curvature greater than or equal to 5t, and a distance exceeding the second reference plane is less than or equal to a first predetermined distance; the first inner-edge trajectory has a radius of curvature greater than or equal to 100t, and a distance exceeding the first reference plane is less than or equal to a second predetermined distance; t is a thickness of the door.