Door Hinge Wire Passing Structure for Laundry Appliance Safety
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Solution Overview
Problem
Existing door hinges in household appliances lack wire passing structures, leading to exposed or entangled wires, which affects aesthetics and safety, especially in water-consuming appliances where wire exposure can cause electric shock.
Innovation Solution
A door hinge design featuring a rotating arm with a wire passing groove and fixing clip, allowing wires to be hidden and secured, preventing wear and breakage from frequent opening and closing, and including a limiting structure to control rotation angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wires are arranged at hinge joints to supply power to door bodies, then power supply function is achieved, but wires become exposed or entangled affecting aesthetics and safety
Solution Approach 1:
The patent uses a flexible wire passing groove structure that allows wires to be concealed within the hinge mechanism. The groove is formed in the rotating arm and provides a protected pathway for wires to pass through, preventing them from being exposed or entangled while still allowing the door to rotate freely. This resolves the contradiction by providing both power supply capability and aesthetic safety.
2Ease of manufacture
If wires are exposed on the door side, then wiring is simple, but wires are liable to be broken due to frequent rotation
Solution Approach 1:
The patent introduces an intermediary structure - the wire passing groove with fixing clip - that mediates between the simple wiring requirement and the durability requirement. The groove provides a guided pathway that reduces friction and wear on wires during rotation, while the fixing clip secures the wire in place. This intermediary structure maintains wiring simplicity while significantly improving wire durability by preventing direct exposure and random movement.
3Object-affected harmful factors
If wires are hidden in the hinge, then aesthetics and safety are improved, but the hinge structure becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the wire protection function into separate components: the wire passing groove in the rotating arm and the fixing clip. This modular approach allows the wire concealment function to be added without completely redesigning the hinge structure. The groove is simply formed in the existing rotating arm component, and the fixing clip is a separate, easily attachable element, thus minimizing the increase in overall structural complexity while achieving effective wire hiding.
4Reliability
If fixing structures are added to secure wires, then wire durability is improved, but the hinge structure becomes more complex
Solution Approach 1:
The patent merges the wire fixation function with existing hinge components. The fixing clip is designed to be attached to the rotating arm, combining the wire securing function with the rotational mechanism. This integration approach allows wire fixation without adding completely separate, independent fixation structures, thus improving wire durability while minimizing the increase in component quantity and overall structural complexity.
Data Source
AI summary
A door hinge, and a laundry treatment device provided with the door hinge, includes a hinge mount, a hinge shaft and a rotating arm, a side of the rotating arm is provided with a wire passing groove, the rotating arm further includes a fixing clip, and a cavity structure is formed by the fixing clip and the wire passing groove for allowing wire to pass. On the basis of the prior art, a wire passing structure of the door hinge is added, wiring of an energization component of the laundry treatment device with the door hinge can be facilitated, wires can be hidden by the wire passing structure, space is saved, and the attractiveness is improved; the wires are not liable to be worn or broken since the wires are placed in the groove; and all parts of the rotating arm can be disassembled for easy maintenance.