Refrigerator Beam Anti-Flip Design Using Limit Pin and Groove
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Solution Overview
Problem
Existing refrigerators experience beam instability due to uneven forces, leading to flipping issues that affect user experience.
Innovation Solution
Incorporating a limit convex pin and limit groove configuration on the beam and liner wall, respectively, to restrict the beam's rotation and prevent flipping, with the pin and groove designed to match in shape and size to effectively limit movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the beam is connected to the liner wall using only an insertion groove, then the assembly is simple, but the beam flips under uneven forces affecting stability
Solution Approach 1:
The connection structure is segmented into multiple functional elements: the insertion groove for basic positioning and the limit groove with convex pin for rotation restriction. This segmentation allows each element to perform its specific function independently, achieving both simplicity and stability.
Solution Approach 2:
The limit groove acts as an intermediary element between the beam and liner wall. It provides the limiting function by receiving the convex pin, thereby preventing beam rotation without requiring direct complex coupling between the beam and liner wall.
2Reliability
If the beam is allowed to rotate freely in the insertion groove, then the assembly process is easy, but the beam flips under uneven forces
Solution Approach 1:
The limit groove is pre-formed in the liner wall during manufacturing, with its geometry designed to automatically limit beam rotation. This preliminary action ensures that the anti-flip function is built-in before assembly, maintaining ease of assembly while guaranteeing reliability.
Solution Approach 2:
Instead of adding complex locking mechanisms to prevent rotation, the design inverts the approach by creating a groove that naturally limits rotation through its geometry. The convex pin on the beam passively engages with this pre-designed limit groove, achieving reliability without complicating the assembly process.
3Stability of the object's composition
If a limit groove and convex pin are added to prevent beam rotation, then beam stability improves, but the manufacturing complexity increases
Solution Approach 1:
The limit groove's geometric parameters (depth, width, orientation) are specifically designed to match the convex pin dimensions. By optimizing these parameters, the structure achieves effective rotation control while maintaining manufacturability through standard molding or machining processes.
Solution Approach 2:
The limit groove is designed with asymmetric geometry that naturally restricts rotation in one direction while allowing insertion. This asymmetric design provides effective rotation control without requiring symmetric complex structures, thereby maintaining ease of manufacture.
Data Source
AI summary
A refrigerator with a liner body and a beam, where the beam has an end portion, and the liner body has a liner wall. An insertion groove is on the liner wall, and the end portion is configured to be inserted into the insertion groove. A limit convex pin is on the end portion and a limit groove is on the liner wall and matched with a shape of the limit convex pin. The limit convex pin is configured to be inserted into the limit groove to limit rotation of the beam relative to the liner body. By matching the limit convex pin and the limit groove, the rotation of the beam relative to the liner wall is limited by the liner wall when the beam is under uneven forces, thereby reducing the flip probability of the beam of the refrigerator.