Refrigerator door with replaceable door panel
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Solution Overview
Problem
Existing refrigerator doors with replaceable panels face issues of unstable fixation leading to breakage and inability to meet long-term aesthetic demands due to environmental changes.
Innovation Solution
A refrigerator door design featuring a foam door body with a detachable decorative panel, utilizing a press latch and limiter, and opposing hooks with torsion springs for stable engagement, allowing for easy replacement and secure attachment without screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the decorative panel is detachably connected to the foam door body, then the adaptability and ease of replacement are improved, but the stability and reliability of fixation deteriorate
Solution Approach 1:
The door panel assembly is segmented into three main parts: the foam door body, the decorative panel, and the locking mechanism. This segmentation allows the decorative panel to be independently replaced while maintaining a stable connection system through the locking mechanism with multiple hooks and latches distributed across the assembly interface.
Solution Approach 2:
Multiple fixation elements (first hook, second hook, press latch, and limiter) are combined into a single integrated locking mechanism that works together to provide multi-directional constraint. This merging ensures that the detachable connection maintains high stability through coordinated action of all components.
2Ease of operation
If a simple detachable connection is used, then the ease of operation and replacement speed are improved, but the strength and stability of fixation deteriorate
Solution Approach 1:
The locking mechanism incorporates dynamic elements including the press latch that can be actuated to release locks, and the elastic member that provides automatic engagement force. This dynamic design allows easy one-handed operation for replacement while maintaining strong fixation during normal use.
Solution Approach 2:
The elastic member automatically provides engagement force when the panel is assembled, eliminating the need for additional fastening operations. The limiter automatically engages with the stop to prevent over-closure, providing self-regulating fixation that is both strong and easy to install.
3Reliability
If multiple locking points are used, then the stability and reliability of multi-directional fixation are improved, but the device complexity increases
Solution Approach 1:
The locking mechanism uses multiple instances of the same basic components (hooks, latches, limiters) rather than different complex mechanisms for each locking point. This universal approach provides multi-directional stability through repetition of proven simple elements, minimizing overall complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures stable engagement of the decorative panel in multiple directions, reducing breakage risk and simplifying detachment, while accommodating long-term aesthetic adjustments.
Implementation Method 1
the elastic member is sleeved outside the push rod portion and received in the receiving hole, wherein a resisting portion protrudes from an interior of the receiving hole, and opposite ends of the elastic member elastically abut against the button portion and the resisting portion, respectively
Data Source
AI summary
A refrigerator door with a replaceable door panel includes a foam door body and a decorative panel detachably connected to the foam door body; a press latch and a limiter are disposed on the foam door body; a first hook and a second hook opposed to each other are disposed on a rear side of the decorative panel facing towards the foam door body, a lock hole being disposed on the first hook; wherein when the decorative panel is assembled to a front side of the foam door body, a front end of the press latch catches the lock hole to limit a displacement of the decorative panel in an up-down direction; the second hook engages the limiter to limit a displacement of the decorative panel in a front-rear direction.