Refrigerator door and manufacturing method of the same
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Solution Overview
Problem
Refrigerator doors made of steel materials face challenges in integrating user interface components such as display and touch sensors without compromising aesthetics or functionality, particularly in maintaining an aesthetically pleasing appearance while allowing user input and information display.
Innovation Solution
A refrigerator door design featuring a steel front panel with integrated display and touch sensor assemblies, where the display assembly emits light through strategically etched holes and the touch sensor assembly is positioned to receive user input, with a foam-filled space for insulation and a frame to separate electronic components from the foam, ensuring both functionality and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a steel front panel is used for the refrigerator door, then aesthetic appearance and durability are improved, but integration of display and touch sensor components becomes difficult
Solution Approach 1:
The refrigerator door is divided into multiple functional layers: a steel front panel for aesthetics, a separate frame structure for component mounting, and distinct spaces for display and touch sensor assemblies. This segmentation allows each component to be optimized independently while maintaining the overall aesthetic integrity of the steel panel.
Solution Approach 2:
The display assembly and touch sensor assembly are nested within the frame structure, which itself is attached to the front panel. The frame creates internal cavities that house these electronic components, effectively nesting multiple functional elements within the steel door structure without compromising its external appearance.
2Adaptability or versatility
If display and touch sensor assemblies are integrated into the steel front panel, then user interface functionality is improved, but the risk of static electricity damage to electronic components increases
Solution Approach 1:
The frame structure serves as an intermediary barrier between the steel front panel and the electronic components. This intermediate structure provides electrical isolation, protecting the display and touch sensor assemblies from static electricity generated by the steel panel, while still allowing the user interface to function seamlessly through the panel.
Solution Approach 2:
The frame structure is designed to provide preemptive protection against static electricity damage before it can reach the electronic components. By positioning the frame between the steel panel and the sensitive electronics, the design anticipates and prevents potential harm from static discharge.
3Device complexity
If electronic components are mounted directly on the front panel, then device complexity is reduced, but insulation performance deteriorates due to foam contact
Solution Approach 1:
The mounting structure is segmented into a frame that creates a dedicated space for electronic components, separating them from the foam insulation material. This segmentation prevents direct contact between the components and foam, maintaining thermal insulation performance while providing a structured mounting solution.
Solution Approach 2:
The frame acts as an intermediary structure that mounts the electronic components without allowing them to contact the foam insulation. This intermediate structure preserves the insulating properties of the foam while providing secure mounting for the display and touch sensor assemblies.
4Shape
If the front panel is made seamless for aesthetics, then appearance is improved, but heat insulation performance worsens due to potential thermal bridges
Solution Approach 1:
The frame and electronic components are nested within the door structure in a way that maintains the seamless external appearance of the steel front panel. The frame creates internal cavities that house components without creating external seams or interruptions to the aesthetic surface, while the foam insulation fills surrounding spaces to maintain thermal performance.
Solution Approach 2:
The door assembly utilizes a composite structure combining the steel front panel for aesthetics, the frame for structural support and component housing, and foam insulation for thermal performance. This composite approach allows each material to fulfill its primary function while working together to achieve both seamless appearance and effective heat insulation.
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
The solution allows for an aesthetically pleasing steel refrigerator door that provides user information and accepts commands through a seamless interface, maintaining insulation and preventing electronic component damage from static electricity.
Implementation Method 1
filling a space defined by the front panel, the door liner, and the upper cap decoration unit with a foam liquid and foaming the foam liquid
Data Source
AI summary
A refrigerator door and a manufacturing method of the same are disclosed. The refrigerator door includes a front panel that includes a first through hole and an input unit, a door liner, an upper cap decoration unit configured to seal an upper side of a first space defined between the front panel and the door liner, a frame attached to an inside of the front panel and defining a second space, a display assembly provided between the frame and the front panel and configured to emit light through the first through hole, and a touch sensor assembly provided between the frame and the front panel, the touch sensor assembly being fixed to a rear of the front panel at a position that corresponds to a location of the input unit. The upper cap decoration unit includes a communication hole for communicating with the second space and includes a cap cover.