Refrigerator Door UI Housing With Integrated Handle Access
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Solution Overview
Problem
Existing refrigerator door designs face challenges in integrating user interface and handle functions in a visually cohesive manner while maintaining simplicity in construction and reducing the risk of foaming agent leakage during the manufacturing process.
Innovation Solution
The design incorporates a user-interface housing that integrates the user interface and handle elements within a single unit, allowing for a simpler side wall construction without a step portion, and is fixedly attached to the heat insulation layer after the foaming process, enabling a one-piece structure or extruded side wall configuration, which reduces the number of components and minimizes leakage risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user interface and handle elements are integrated in a single housing, then visual integration and operational functionality are enhanced, but the device complexity increases
Solution Approach 1:
The user interface housing integrates the user interface elements (display, controls) and handle elements (handle groove, grip portion) into a single structural unit. This merging approach creates visual integration where both functions appear cohesive on the door surface, while the housing itself serves as the structural carrier for both functional elements, reducing the need for separate mounting structures.
2Ease of manufacture
If the side wall is constructed without a step portion, then the construction process is simplified, but the ability to accommodate handle groove access is reduced
Solution Approach 1:
Instead of creating a step portion in the side wall (horizontal/vertical dimension modification), the solution provides access to the handle groove through the first opening and second opening that are in communication with each other. The concave portion of the user interface housing creates an accessible recess space, allowing hand insertion through the openings without requiring side wall modifications. This shifts the access mechanism from wall-based to housing-based.
3Reliability
If the user interface housing is fixedly attached after foaming process, then the risk of foaming agent leakage is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The user interface housing is designed to be fixedly attached to the door structure after the foaming process is completed. This preliminary sequencing ensures that the foaming agent is already contained within the closed mold cavity before the housing is installed, eliminating the risk of leakage during the foaming operation. The attachment occurs in a controlled post-foaming state where precision can be managed through standardized mounting procedures rather than during the dynamic foaming process.
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
This solution provides a visually integrated operation center, enhances the door's operational functionality, and simplifies the construction process by reducing the complexity of component assembly and leakage risks during the foaming process.
Implementation Method 1
a thermal insulation space located between the door liner and the front wall and filled with a heat insulation layer
Data Source
AI summary
A refrigerator includes a door having a user-interface electrical module, a door liner, a front wall being located in front of the door liner and having a first opening, a side wall, and a thermal insulation space being located between the door liner and the front wall and being filled with a heat insulation layer. The side wall has a second opening in communication with the first opening. The door includes a user-interface housing which closes the first opening and the second opening relative to the thermal insulation space and includes a receiving space for receiving the user-interface electrical module and a concave portion being open towards the first opening and the second opening to permit access to a handle groove within the user-interface housing.