Refrigerator
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Solution Overview
Problem
Refrigerators lack a convenient method for users to identify stored food without opening the door, leading to increased door opening times and unnecessary cold air loss, as the interior is not visible until the door is opened.
Innovation Solution
A refrigerator design featuring a transparent panel assembly that can be selectively switched between transparent and opaque states, allowing users to visualize the interior without opening the door, coupled with a support frame and sealing structure to prevent foam liquid pollution and dew condensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the door is made opaque for insulation, then thermal insulation performance is improved, but user convenience deteriorates because the interior cannot be seen without opening the door
Solution Approach 1:
The door panel incorporates a switchable transparency mechanism that allows it to dynamically change from opaque to transparent state. This enables the door to adapt its optical properties based on operational requirements, maintaining insulation when opaque and providing visibility when transparent, thus resolving the contradiction between thermal performance and user convenience.
Solution Approach 2:
The door panel's optical parameter (transparency) is made variable through the switchable mechanism. By changing the transparency parameter from opaque to transparent state, the system can optimize both thermal insulation and interior visibility at different times, eliminating the need to compromise either requirement.
2Ease of operation
If a transparent panel assembly is added to the door, then interior visibility is improved, but device complexity increases due to additional mounting structures and sealing requirements
Solution Approach 1:
The transparent panel assembly is integrated with the door structure by combining multiple functions into unified components. The mounting structure serves both as structural support and as part of the sealing system, while the switchable transparency mechanism is incorporated directly into the panel assembly, reducing the need for separate complex subsystems.
Solution Approach 2:
The door assembly is designed with multi-functional components where the mounting structure simultaneously provides mechanical support, positioning, and sealing functions. The transparent panel assembly itself serves multiple purposes including insulation, visibility, and structural integrity, thereby reducing overall device complexity despite adding transparency capability.
3Stability of the object's composition
If the transparent panel assembly is permanently fixed, then structural stability is improved, but serviceability deteriorates because the assembly cannot be easily removed for maintenance
Solution Approach 1:
The door assembly is segmented into modular components including the transparent panel assembly, mounting structure, and sealing elements. The mounting structure incorporates detachable connection mechanisms that allow the panel assembly to be easily separated from the door, enabling maintenance and replacement while maintaining stable operation during normal use.
Solution Approach 2:
The mounting connection transitions from a static permanent fix to a dynamic detachable connection. The mounting structure includes mechanisms that provide stable fixation during operation but can be easily released when maintenance is required, allowing the system to adapt between stability and serviceability states as needed.
Data Source
AI summary
A refrigerator according to an embodiment of the present disclosure includes a cabinet, a door configured to open/close the cabinet, an outer plate defining a front surface of the door and having an opening formed therein to pass through the door, a door liner defining a rear surface of the door, lighting members configured to illuminate storage spaces of the door and the cabinet, a transparent panel assembly mounted to shield the opening and allowing the storage spaces to be selectively seen according to an ON/OFF state of the lighting members, an insulator filled between the outer plate and the door liner, and a blocking part arranged inside the door along a periphery of the transparent panel assembly and detachably coupled to a peripheral surface of the transparent panel assembly to fix the transparent panel assembly.