Refrigerator Closing Unit Pivot Ventilation for Food Preservation
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Solution Overview
Problem
Existing domestic refrigeration appliances lack efficient ventilation mechanisms for storage chambers, which affects the preservation of food and the optimal use of available space.
Innovation Solution
A domestic refrigeration appliance apparatus with a storage unit and a ventilation unit that pivots the closing unit about a pivot axis to ventilate the storage chamber, utilizing a cam transmission system for adjustable ventilation and a retaining unit to prevent horizontal movement, allowing for efficient air exchange and flexible opening settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the closing unit is moved horizontally to ventilate the storage chamber, then the storage chamber can be ventilated, but the sealing tolerance cannot be taken into account and space is wasted
Solution Approach 1:
Instead of moving the closing unit horizontally as in conventional designs, the patent inverts the approach by pivoting the closing unit about a vertical pivot axis. This allows the closing unit to rotate from a closed position to a ventilated position, maintaining sealing tolerance when closed while enabling effective ventilation when opened, thereby eliminating the need for additional space compensation
2Reliability
If the closing unit is completely closed to maintain sealing, then food preservation is improved, but ventilation capability is reduced
Solution Approach 1:
The patent applies dynamics by making the closing unit rotatable about a vertical pivot axis, allowing it to dynamically switch between a completely closed position for optimal sealing and food preservation, and a rotated position for ventilation. This dynamic capability enables the system to adapt to different storage needs without compromising either sealing or ventilation functionality
Solution Approach 2:
The closing unit serves multiple functions: it acts as a sealed cover when closed to preserve food, and as a ventilating element when rotated to allow air exchange. The single closing unit structure performs both sealing and ventilation functions, eliminating the need for separate mechanisms
Data Source
AI summary
A domestic refrigeration appliance apparatus has a storage unit which defines at least one storage chamber for storing food that is open in the direction of an upper face of the storage unit, a closing unit which in at least one first storage state closes the storage unit at least substantially in the direction of the upper face, and a ventilation unit which in at least one second storage state moves the closing unit relative to the storage unit to ventilate the storage chamber. In order to provide a generic apparatus with improves properties in respect of efficient ventilation of a storage chamber, it is proposed that the ventilation unit pivots the closing unit about at least one pivot axis relative to the storage unit to ventilate the storage chamber.