Device Installation Socket Cable Entry Design
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Solution Overview
Problem
Existing device installation boxes suffer from mechanical stress and deformation when cables are inserted, leading to potential cable damage and leakage due to thin walls and narrow cable entries, which are not effectively addressed by prior art.
Innovation Solution
Designing cable entries with a clear opening width larger than the housing thickness, and incorporating sawtooth-shaped retaining elements on both sides to prevent cable escape and reduce insertion stress, along with recesses for increased flexibility and cable holding elements on the open top for added security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If thin walls with narrow cable entries are used, then the device installation box is compact and easy to manufacture, but mechanical stress increases and cable damage occurs during insertion
Solution Approach 1:
The cable entry width is increased from a narrow opening to a width that exceeds the wall thickness, fundamentally changing the dimensional parameters to reduce mechanical stress and eliminate cable damage during insertion
2Device complexity
If thin walls with constant width feed-through slots are used, then the housing structure is simple, but severe deformation occurs when cables are inserted
Solution Approach 1:
The wall structure is segmented by introducing recesses that divide the wall into multiple zones, allowing localized flexibility at the cable entry while maintaining overall structural integrity and preventing severe deformation
Solution Approach 2:
The wall thickness is varied locally by introducing recesses behind the cable entries, creating areas of reduced thickness where flexibility is needed while maintaining full thickness in other areas for structural strength
3Device complexity
If narrow cable entries are used, then the housing walls remain thin and simple, but cables leak through the cable entries
Solution Approach 1:
The cable entry width is increased to exceed the wall thickness, creating a geometric configuration where the retaining elements can effectively engage the cable and prevent leakage without requiring additional complex structures
Data Source
Figure 1~2
Figure 3
AI summary
The appliance connector (1) has a housing (4) provided with a bottom (5), four side walls (6-6'''), a open top. The holding devices (21,21') are provided in the bottom for holding cables. The cable inlets (12-12''') are provided in to side walls (6',6'') respectively. The width of each cable inlet is greater than thickness of the walls and is 50% of the depth of the respective cable inlet.