Ice Maker Housing Assembly With L-Shaped Wall and Drain Gutter
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Solution Overview
Problem
Existing household refrigeration apparatuses with ice makers face challenges in accurate and efficient assembly, leading to potential thermal insulation issues and hygiene problems due to complex housing designs and difficulties in condensation water management.
Innovation Solution
A household refrigeration apparatus with an ice maker housing designed using a wall unit with an L-shape cross-section, featuring a separate wall element and positioning bracket for easier assembly, and an integrated drain gutter for condensation water management, allowing for faster and more accurate mounting and improved hygiene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple screw connections are used to attach the wall element to the interior container, then the connection strength is improved, but the assembly complexity and time increase, and positioning accuracy decreases
Solution Approach 1:
The wall element is pre-assembled with the positioning bracket and positioning elements (such as positioning lugs or pins) before installation. This preliminary assembly ensures accurate positioning when the wall element is mounted to the interior container, eliminating the need for complex positioning during final assembly and reducing assembly time while maintaining connection strength through pre-configured mounting holes and attachment points.
2Manufacturing precision
If the wall element is retained by the assembler during assembly, then positioning control is improved, but the assembly operation becomes more difficult and costly
Solution Approach 1:
The positioning bracket is designed to automatically guide and position the wall element during assembly through self-aligning features such as positioning lugs that fit into corresponding recesses in the interior container. This self-positioning mechanism eliminates the need for the assembler to manually hold and position the wall element, making assembly easier while maintaining high positioning accuracy through the self-aligning design.
3Strength
If the wall element has a circumferential frame with integral bracket, then structural strength is improved, but the device complexity increases and cleaning becomes difficult
Solution Approach 1:
The housing is segmented into separate components: the wall element and the positioning bracket are designed as distinct parts that can be assembled together. The positioning bracket is configured to engage with the wall element through simple attachment mechanisms rather than being integrally formed with it. This segmentation reduces overall device complexity while maintaining structural strength through proper connection design, and creates smoother surfaces that are easier to clean by eliminating complex integral joints and crevices.
4Ease of manufacture
If the housing design does not include drainage features, then manufacturing simplicity is maintained, but condensation water accumulates causing hygiene problems
Solution Approach 1:
The drainage function is extracted as a separate feature from the main housing structure. Drainage channels and outlets are integrated into the wall element or positioning bracket design, allowing condensation water to be actively removed from the housing interior. This extraction of the drainage function maintains manufacturing simplicity by incorporating drainage features directly into existing components rather than adding separate drainage systems, while effectively preventing hygiene problems through active condensation water removal.
Data Source
AI summary
A household refrigeration apparatus includes an interior container with a first wall and a second wall angled thereto. The interior container bounds a first receiving space for food. An ice maker has a housing formed by wall areas of the first and second walls in certain areas. The housing bounds a receiving space of the ice maker. The housing has a wall unit separate from the interior container. The interior container has a rear wall having a base plate and a step integrally formed with the base plate. The wall unit has a wall element separate from the interior container. The wall element has an L-shape in cross-section, and the wall element has first and second wall plates together forming the L-shape. The first wall plate has a rear web resting on the step. A method for assembling an ice maker housing is also provided.