Rotatable Laundry Door Wire Cover for Single-Person Assembly
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Solution Overview
Problem
The existing methods for assembling laundry treating appliances with integrated electronic systems in the door are inefficient, often requiring two individuals to mount the door and form electrical connections, or are cumbersome for a single assembler who must hold the door while making connections.
Innovation Solution
A wire cover that is rotatable about the hinge rotational axis, allowing for convenient electrical connections to be made after the door is securely mounted to the cabinet, eliminating the need for the assembler to hold the door during connection and simplifying the assembly process by enabling single-person operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door is securely mounted to the cabinet before making electrical connections, then the door stability and safety are improved, but the assembly process becomes more difficult requiring multiple individuals to hold the door
Solution Approach 1:
The wire cover is divided into first and second halves that can be separately assembled. The first half is attached to the door while the second half remains accessible for connection work, allowing the door to be securely mounted while still enabling easy electrical connections through the exposed wire channel.
2Reliability
If the wire harness passes through the hinge knuckle during door opening/closing, then the electrical connection is maintained, but the wire harness is subject to fatigue and damage
Solution Approach 1:
The wire cover provides protective cushioning for the wire harness before it enters the hinge knuckle area. By enclosing the wire harness within the wire cover's protected channel, the wire is shielded from mechanical damage, twisting, and fatigue that would otherwise occur during repeated door opening and closing operations.
3Productivity
If a single assembler performs both door mounting and electrical connections, then labor cost is reduced, but the assembler must hold the door weight making the process cumbersome
Solution Approach 1:
The wire cover is segmented into two halves that enable different operational phases. During door mounting, the first half is attached to provide structural support. During electrical connection, the second half remains accessible or can be temporarily positioned to allow the assembler to work on connections without supporting the door weight, enabling single-person operation.
4Ease of operation
If the wire cover is rotatable about the hinge rotational axis, then accessibility for electrical connections is improved, but the wire cover structure becomes more complex
Solution Approach 1:
The wire cover incorporates rotational capability about the hinge rotational axis, transforming it from a static enclosure to a dynamic component. This allows the wire cover to rotate into different positions during assembly and operation, providing accessible exposure of the wire channel for electrical connections while maintaining a relatively simple overall structure that leverages the existing hinge rotation mechanism.
Data Source
AI summary
A laundry appliance door assembly with a wire cover to protect the wire conductor that passes through the door hinge where it has a tendency to get pulled and damaged when the door is in motion. The wire cover includes a wire cover and a wire conduit coaxially connected together allowing the wire cover to rotate relative to the wiring conduit while within alignment of the hinge rotational axis. The wire cover comprises two lateral halves for ease of installation where it is designed to encase the wire conductor that passes through the door hinge.