Refrigerator Door Vacuum Insulation Assembly to Reduce Damage Risk
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Solution Overview
Problem
Existing refrigerator doors face challenges in maintaining a thin profile while enhancing heat insulation properties and simplifying the assembly process without damaging vacuum heat insulating members.
Innovation Solution
The implementation of a refrigerator door design that incorporates a molded heat insulating member and a vacuum heat insulating member, where the molded member is shaped to match the door frame's inner convex edge and includes a convex step portion to support the front panel, and a protection sheet is used to prevent damage to the vacuum insulating member during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a vacuum heat insulating member is included in the refrigerator door to maintain thin profile and improve heat insulation, then heat insulating property is improved, but the assembling process becomes complex and the vacuum heat insulating member is prone to damage
Solution Approach 1:
The patent combines the vacuum heat insulating member with the molded heat insulating member into a single integrated heat insulating assembly. The vacuum heat insulating member is positioned within the molded heat insulating member, creating a composite structure that maintains excellent thermal insulation while simplifying the overall assembly process by pre-positioning components together
Solution Approach 2:
The patent applies a protection sheet to the vacuum heat insulating member before assembly. This preliminary protective action prevents damage to the vacuum heat insulating member during the assembling process, eliminating the need for complex handling procedures and special precautions while maintaining component integrity
2Length of stationary object
If the refrigerator door is made thin by using vacuum heat insulating member, then the door thickness is reduced, but the assembling process becomes more difficult and time-consuming
Solution Approach 1:
By integrating the vacuum heat insulating member within the molded heat insulating member in a pre-assembled configuration, the patent enables faster installation of the complete heat insulating assembly as a single unit, improving productivity without compromising the thin door profile
Solution Approach 2:
The protection sheet is applied in advance to the vacuum heat insulating member, preventing damage during handling and assembly. This preliminary protective measure streamlines the assembling process by eliminating the need for special care and complex procedures, thereby increasing assembly speed
3Device complexity
If a molded heat insulating member is used to support the front panel, then the structure is simplified, but the vacuum heat insulating member may be damaged during assembly
Solution Approach 1:
The protection sheet is applied to the vacuum heat insulating member before it is installed within the molded heat insulating member. This preliminary protective action prevents damage during the assembly process while maintaining the simplified structural design, ensuring the reliability and integrity of the vacuum heat insulating member
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 design effectively maintains excellent heat insulation properties while preventing damage to the vacuum heat insulating member and simplifying the assembly process, ensuring the refrigerator door remains thin and energy-efficient.
Implementation Method 1
a vacuum heat insulating member (126) included in the molded heat insulating member (121)
Implementation Method 2
a molded heat insulating member (121) in which a convex step portion (122b) protruding toward the front side is formed on the front surface
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A refrigerator door of an embodiment includes a door frame, a front panel which is attached to the door frame, a structure which is disposed in the door frame such that a front face of the structure faces a rear face of the front panel, a flat vacuum heat insulating member which is disposed in a rear face side of the structure, and a molded heat insulating member which is disposed in a space surrounded by a front face of the vacuum heat insulating member, a rear face of the front panel, and an outer side face of the structure.