Freezer Swing Door Mullion Layout for Wider Product Visibility
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Solution Overview
Problem
Conventional freezer device doors have large, robust profiles that obstruct the view of products due to their insulating and bulky design, limiting customer visibility when accessing the device.
Innovation Solution
A swing door system with a mullion that minimizes the non-transparent region by using a mullion with a width and depth of less than 70 mm, preferably less than 60 mm, and a T-shaped, Y-shaped, or triangle-shaped cross-section, integrated with an insulation profile and gaskets to maintain mechanical stability and thermal insulation, allowing improved product visibility without compromising structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional robust and large profile structures are used for freezer doors, then mechanical stability and thermal insulation are improved, but product visibility is worsened due to large non-transparent areas blocking the view
Solution Approach 1:
The patent applies parameter changes by reducing the mullion dimensions from conventional large profiles to less than 70 mm width and depth, and positioning non-transparent areas within 100 mm horizontal diameter from the mullion. This parameter optimization maintains structural stability while significantly improving product visibility through the transparent pane.
2Loss of energy
If conventional large profile structures are used for freezer doors, then thermal insulation is improved, but product visibility is worsened due to bulky design
Solution Approach 1:
The patent applies local quality by concentrating thermal insulation functions at specific locations (around the mullion and hinge areas) rather than using uniformly bulky profiles throughout. The non-transparent areas are strategically positioned within 100 mm horizontal diameter of the mullion, providing localized insulation while maximizing transparent viewing areas.
3Stability of the object's composition
If non-transparent areas are positioned far from the mullion, then structural support is improved, but product visibility is worsened due to larger non-transparent region
Solution Approach 1:
The patent optimizes the position parameter by locating non-transparent areas within 100 mm horizontal diameter from the mullion, rather than positioning them at the edges of large conventional profiles. This parameter change maintains structural support near the mullion while minimizing the visual impact on product visibility.
Data Source
AI summary
A swing door system for use with a freezer device is provided. The system includes two adjacent swing doors and a mullion in contact with the swing doors. Each swing door has a transparent pane and a non-transparent area. The non-transparent area is proximal to the mullion when the swing doors are in a closed position. The non-transparent areas and the mullion define a non-transparent region. The system has, under a horizontal viewing angle between 0° and 180° with respect to the plane in which the swing doors are arranged when the swing doors are in the closed position, all of the horizontal diameters of the non-transparent region are less than 100 mm.