Recessed Refrigerator Door Opener for Tight Side-by-Side Gaps
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Solution Overview
Problem
Side-by-side refrigerators face difficulties in opening doors due to pressure differences and interference issues with conventional door opening devices, especially in models with heavy doors and small gaps between doors, leading to inconvenient operation and potential damage.
Innovation Solution
A door opening device with a recessed handle and push kit design, featuring a pushrod, rod guide, and elastic members, allowing for a seesaw motion and easy installation/detachment, which reduces the force required to open the door and maintains a neat external appearance by avoiding protrusions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional door opening device is installed to protrude from the outer surface of the door, then it can be easily operated, but it cannot be installed in side-by-side refrigerators with small gaps between doors and interferes with adjacent doors
Solution Approach 1:
The door opening device is repositioned from protruding outward to being recessed into the door body, utilizing the internal space of the door rather than external space. This dimensional change allows the device to fit within side-by-side refrigerator configurations where external protrusion would cause interference with adjacent doors.
Solution Approach 2:
The handle and push kit are mounted within recesses formed in the door body, nesting the door opening device components inside the door structure rather than having them protrude outward. This nesting approach eliminates interference with adjacent doors while maintaining operational functionality.
2Force
If the door opening device is installed to protrude from the door surface, then it provides sufficient leverage to open the door, but it interferes with the adjacent door and is difficult to install in tight spaces
Solution Approach 1:
The device transitions from an external protruding structure to an internal recessed structure, maintaining sufficient leverage through proper mechanical design of the pushrod and fulcrum while eliminating spatial interference with adjacent components.
Solution Approach 2:
The recessed mounting provides localized structural support and leverage points within the door body, concentrating the mechanical advantage where needed while keeping the external surface flush and non-interfering.
3Force
If a complex door opening device is installed, then it can effectively open heavy doors, but it is difficult to attach and detach for repair or replacement
Solution Approach 1:
The door opening device is divided into separate modular components including the handle, push kit, pushrod, and rod guide, which can be independently attached and detached. This segmentation maintains the mechanical effectiveness for opening heavy doors while enabling easy repair and replacement of individual components.
Solution Approach 2:
The device incorporates movable components such as the pushrod that moves linearly and the handle that performs seesaw motion, allowing the complex mechanism to be assembled and disassembled in simple sequential steps while maintaining operational complexity for effective door opening.
4Ease of operation
If the door opening device protrudes from the door surface, then it is functional, but it compromises the aesthetic appearance of the refrigerator
Solution Approach 1:
The handle and push kit are nested within recesses in the door body, creating a flush external surface that maintains the aesthetic appearance of the refrigerator while housing all necessary functional components internally.
Solution Approach 2:
The functional components are relocated from the external dimension to the internal dimension of the door structure, allowing the external surface to remain smooth and aesthetically pleasing while the internal recesses contain the operational mechanism.
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 simplifies the door opening process, reduces the force needed to open the door, enhances user convenience, and allows for easy replacement and repair, while maintaining the aesthetic appeal of the refrigerator's design.
Implementation Method 1
an elastic member which is compressed by the pushrod
Data Source
Figure 1
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AI summary
A side-by-side refrigerator having a door opening device (20b) which includes a cabinet (10) and a door (15) to open and close a front surface of the cabinet (10), the door opening device (20b) comprising: a handle (40) which is mounted on a front surface of the door (15) to perform a seesaw motion; and a push kit (30) which is mounted on a side surface of the door to interwork with the handle (40), wherein a portion on which the handle (40) and the push kit (30) are mounted is formed to be recessed in the door (15).