Washing Machine Door Trim Coupling for Easy Panel Replacement
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Solution Overview
Problem
Conventional washing machines face difficulties in easily mounting or replacing ornamental panels and suffer from deformation of door trims, leading to a deterioration of the outer appearance.
Innovation Solution
A washing machine design featuring a coupling device with holding recesses and hooks, along with coupling guide protrusions and bores, allows for easy mounting and separation of ornamental panels without the need for fixing screws, while preventing distortion of door trims through accurate positioning and support ribs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixing screws are used to mount the ornamental panel, then the mounting structure is simple, but the mounting and separation of the ornamental panel becomes difficult
Solution Approach 1:
The coupling device is divided into multiple door trims that can be independently attached and detached. Each door trim has holding hooks that engage with holding recesses in the door, allowing the ornamental panel to be segmented into removable sections for easy replacement while maintaining a simple overall structure.
Solution Approach 2:
The coupling device transitions from a fixed screw-based mounting to a dynamic snap-fit system using holding hooks and recesses. This allows the door trims to be easily attached and detached multiple times without complex tools, making the ornamental panel replacement simple and reversible.
2Shape
If door trims are used to support the ornamental panel, then the outer appearance is enhanced, but the door trims may deform after long use causing joint portions to come off
Solution Approach 1:
The door trims incorporate holding hooks at specific locations where they engage with holding recesses in the door. This localized reinforcement at critical joint areas prevents deformation and coming off of corner portions, while the rest of the door trim maintains its aesthetic design and shape.
Solution Approach 2:
The holding hooks are designed with curved or bent shapes that provide mechanical advantage and distribution of stress. This curved geometry helps the door trims resist deformation forces and prevents the joint portions from coming off during normal use and cleaning operations.
3Strength
If multiple door trims are provided at the coupling rim region, then the ornamental panel can be securely mounted, but the mounting process becomes time-consuming
Solution Approach 1:
The holding recesses are pre-formed in the door at the coupling rim region, and the holding hooks are pre-formed on the door trims. This preliminary preparation allows the door trims to be quickly snapped into place without requiring time-consuming fastening operations, while still providing secure mounting through multiple engagement points.
Solution Approach 2:
Multiple door trims are combined into a single integrated assembly that can be installed as one unit. The door trims work together to provide secure mounting of the ornamental panel while reducing the overall installation time compared to installing multiple separate components individually.
Data Source
AI summary
A washing machine to guarantee easy mounting or separation of an ornamental panel and prevent the coming off or distortion of door trims. The washing machine includes a body having a laundry opening, a door mounted to the body to open or close the laundry opening and having a rim, an ornamental panel mounted to an outer surface of the door, a plurality of door trims coupled to the rim of the door supporting the ornamental panel, and a coupling device coupling of the door trims. The coupling device includes a plurality of holding recesses formed in the rim of the door and spaced apart from one another, and a plurality of holding hooks protruding from an inner surface of the respective door trims to be introduced into and caught by the holding recesses.