Cooling device with pull-out carrier for refrigerated goods
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Solution Overview
Problem
The existing refrigeration appliances with telescopic extensions face a high risk of damage when removing the refrigerated goods carrier due to the application of considerable vertical forces, especially when there is minimal play between the interlocking projections and receptacles, which can lead to structural damage during the detachment process.
Innovation Solution
The introduction of a spring-elastic fixation mechanism between the receptacle and projection of the second pair of interlocking projections and receptacles, allowing for a fictitious axis of rotation when lifting the refrigerated goods carrier, reduces the risk of damage by enabling elastic interlocking and decoupling, while maintaining secure anchoring without play in the displacement direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the play in the vertical direction between the receptacle and projection of the second pair is minimized to ensure secure holding, then the refrigerated goods carrier is held securely on the telescopic extension, but the risk of damage when removing the carrier increases due to considerable vertical forces during detachment
Solution Approach 1:
The patent changes the mechanical parameter of the second pair of interlocking elements from rigid to elastic, allowing the projection to deform elastically within the receptacle. This elastic deformation capability absorbs the vertical forces generated during carrier removal, preventing damage while maintaining secure holding during normal operation
Solution Approach 2:
The elastic projection acts as a pre-configured cushioning element that can deform to absorb impact forces. Before damage can occur during carrier removal, the elastic projection already has the capability to yield and dissipate the considerable vertical forces that would otherwise damage rigid interlocking elements
2Stability of the object's composition
If the projection and receptacle of the second pair are made rigidly interlocked to prevent movement, then the carrier is securely anchored, but the lifting action during removal creates damaging forces on the interlocking elements
Solution Approach 1:
The patent transforms the static, rigid interlocking of the second pair into a dynamic, elastic interlocking system. The projection can deform elastically in response to applied forces during carrier removal, allowing the system to adapt to loading conditions while maintaining stable anchoring during normal operation
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 significantly reduces the risk of damage to the receptacle and projection during removal by distributing forces elastically, ensuring secure engagement and preventing tipping or overload-induced damage, thus enhancing the safety and stability of the refrigerated goods carrier.
Implementation Method 1
the projection and the receptacle of the second pair in the vertical direction at least largely elastically interlock
Data Source
Figure 1~2
Figure 3~5
AI summary
The refrigerator has a carrier (6) movably arranged on a cooling chamber (3) by a telescopic extension. Two pairs of first and second projections and first and second receivers are interlocked with each other and are arranged relative to each other in the carrier and the telescopic extension in the vertical and horizontal directions, respectively. The second receiver and the second projection are elastically interlocked with each other without any clearance between the second receiver and the second projection.