Modular Dryer Housing With Tool-Free Front Module Assembly
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Solution Overview
Problem
Existing household appliance housings face difficulties in assembly due to complex designs and require multiple variants, making the process both expensive and challenging.
Innovation Solution
A modular, frameless housing design for tumble dryers where the front wall and air duct form a self-retaining front module that can be easily attached to the base module without tools, utilizing a latching mechanism with spring bars and screw connections to simplify assembly and distribute loads effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional housing designs with independent inner frames are used, then structural strength is improved, but assembly complexity and cost increase
Solution Approach 1:
The patent removes the independent inner frame from the housing structure, extracting this component entirely. The front wall is designed to bear loads directly without requiring a separate internal frame, thereby simplifying the overall structure while maintaining structural integrity through the latching mechanism connecting the front wall to the base module.
Solution Approach 2:
The front wall serves multiple functions simultaneously: it provides the external aesthetic surface, bears vertical loads, and connects to the base module through integrated latching mechanisms. This multi-functionality eliminates the need for a separate inner frame that would otherwise be required for structural support.
2Adaptability or versatility
If multiple housing variants are created for different surface or mounting types, then adaptability is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The housing is segmented into modular components: a base module and a front wall module that can be assembled separately. The front wall module incorporates universal latching hooks that can engage with different mounting configurations, allowing adaptability without requiring completely different housing variants for each application.
3Ease of operation
If tool-free self-retaining attachment is implemented, then ease of assembly is improved, but connection reliability may worsen
Solution Approach 1:
The latching hooks are pre-formed on the front wall during manufacturing, and the base module includes pre-positioned latching openings. This preliminary preparation allows the front wall to be attached to the base module in a self-retaining manner without tools, while the precise geometric matching of hooks and openings ensures reliable connection.
Solution Approach 2:
The front wall module is designed to attach itself to the base module through its own latching hooks engaging with the latching openings. The assembly is self-retaining, meaning the front wall secures itself without requiring external tools or additional fastening operations, while maintaining connection reliability through the mechanical interlocking design.
Data Source
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AI summary
The invention relates to a housing (1) for a household appliance such as a tumble dryer, the basic design of which comprises a base module (2) and side walls (3) and (4), a rear wall and a front wall (5). According to the invention, the front wall (5) of the tumble dryer is designed in a modular manner to form a frameless housing (1), the air duct (7) for the process air flow being attached to the rear (6) of the front wall (5), so that The front wall (5) and air duct (7) form a front module (8) which can be attached to the floor module (2) in a self-retaining manner and without tools for pre-assembly.