Domestic refrigeration device comprising a machine chamber having a carrier shell, on which carrier shell a further part is retained
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Solution Overview
Problem
The assembly of components in the machine chamber of domestic refrigeration appliances is complex and time-consuming, requiring multiple fastening elements, which complicates the process and increases the number of parts involved.
Innovation Solution
A carrier tray with snap connections, plug-in connections, and locking connections is used to secure components without additional fastening elements, simplifying assembly and retention by utilizing the weight and shape of the components for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate fastening elements are used to secure components in the machine chamber, then reliable retention of components is achieved, but assembly complexity and time increase
Solution Approach 1:
The patent combines multiple separate fastening elements into an integrated carrier shell structure. The carrier shell incorporates retaining protrusions, locking mechanisms, and mounting features directly into its body, eliminating the need for separate fasteners. This merging reduces assembly complexity while maintaining reliable component retention through the integrated fastening structures.
Solution Approach 2:
The carrier shell serves multiple functions simultaneously: it acts as a structural support, a fastening mechanism, a mounting platform, and a retention system. By making the carrier shell multi-functional, the patent reduces the number of separate components needed, simplifying assembly while ensuring reliable component securation through its various integrated features.
2Reliability
If multiple separate fastening elements are used to secure components in the machine chamber, then secure retention is achieved, but the number of parts increases
Solution Approach 1:
The patent merges multiple separate fastening elements into a single integrated carrier shell structure. Instead of using multiple discrete fasteners, the carrier shell incorporates all necessary retaining features, locking mechanisms, and mounting points into one unified component, thereby reducing the total number of parts while maintaining secure component retention.
3Reliability
If traditional fastening methods are used, then component retention is reliable, but assembly and dismantling time increase
Solution Approach 1:
The carrier shell is pre-configured with integrated fastening features, retaining protrusions, and locking mechanisms during manufacturing. This preliminary preparation allows components to be quickly secured without requiring complex assembly steps or multiple separate fastening operations, thereby reducing assembly time while ensuring reliable retention.
Solution Approach 2:
The patent segments the carrier shell into modular sections with distinct fastening zones, allowing components to be independently secured and removed. This segmentation enables efficient assembly and dismantling operations while maintaining reliable retention through dedicated fastening features for each component.
4Strength
If additional separate fastening elements are used, then mechanical retention is strengthened, but the device structure becomes more complex
Solution Approach 1:
The patent combines multiple fastening functions into the integrated carrier shell structure, which incorporates retaining protrusions, locking mechanisms, and mounting features directly into its body. This merging maintains strong mechanical retention while avoiding the structural complexity that would result from multiple separate fastening elements.
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 approach reduces assembly time and part count, ensuring reliable and secure retention of components while maintaining mechanical stability, allowing for quick fitting and dismantling without additional fastening elements.
Implementation Method 1
at least one snap connection
Implementation Method 2
locking connection
Implementation Method 3
The resulting force of the weight of the further part then maintains the locking connection produced in a positively supporting manner
Data Source
AI summary
The invention relates to a domestic refrigeration device (1), comprising a housing (2), in which an inner container is arranged, which inner container bounds an interior (3, 4) for accommodating foods, and comprising a machine chamber (12) separated from the interior (3, 4), in which machine chamber at least components (6 to 11) of a refrigeration circuit of the domestic refrigeration device (1) are arranged, wherein a carrier shell (11) is arranged in the machine chamber (12), on which carrier shell at least one further part (6, 43, 44, 45, 46, 47, 48) is retained in such a way that the at least one further part is connected by at least one snap connection (49) and/or at least one plug-in connection (50, 53) and/or a locking connection (59) without any additional fastening elements.